DE202024103958U1 - Cable plow - Google Patents

Abstract

Cable plough (10) for introducing at least one line (11), in particular at least one pipe or cable, into the ground, comprising a chassis (12) with a central body (13) and with front wheels (14) and rear wheels (15),
a blade (16) suitable for engaging in the subsoil to form an earth channel, the blade (16) being arranged on a blade holder (17) behind the central body (13) in an intended direction of travel (F),
a sliding bar (18), wherein an end of the sliding bar (18) located at the rear in the intended direction of travel (F) is arranged on the central body (13),
a carriage (19), wherein the carriage (19) is arranged displaceably on the sliding bar (18),
a fixing device (20) as a holding means for the carriage (19) on the sliding bar (18),
wherein the rear wheels (15) are arranged on the central body (13) or on the sword holder (17) and the front wheels (14) on the carriage (19), and
wherein the distance (A) between the central body (13) and the carriage (19) and thus the distance between the front wheels (14) and the rear wheels (15) can be changed by moving the carriage (19) on the sliding bar (18) using the fixing device (20).

Description

The invention relates to a cable plough for introducing at least one line, in particular at least one pipe or cable, into the ground.

In cable ploughs of this type, the entire machine is pulled by a cable that receives its pulling power from a distant towing vehicle via a winch. This cable attaches to a part of the frame of the cable plough near the cutting edge of the blade, which is at the front in the direction of travel. If the blade is sunk relatively deep into the ground, then the distance between the lower blade tip and a vertical plane that is imaginarily drawn through the front wheels becomes increasingly shorter when viewed in the direction of travel, since the blade tip, when viewed in the direction of travel, is further forward than the upper part of the blade attached to the machine. When ploughing, the blade is pushed through the soil against the resistance of the soil in accordance with its function. This creates a torque around the blade tip due to the pulling force of the cable, which acts on the device frame above the ground in the direction of travel due to its point of attack at or near the upper part of the blade. The direction of rotation of the torque is such that it wants to swing the device forwards around the blade tip. This results in the front wheels being pressed more or less deeply into the ground. The front wheels can be pressed so deeply into the ground, particularly on soft ground, that the cable plow cannot continue to move. The same disadvantageous effect can also occur if the blade hits an obstacle during the plowing process, such as a rock or a strong tree root, which it can only cut or push to the side with considerable additional force from the cable. This also applies if such a device is moved forwards by its own drive acting on the rear wheels. In the aforementioned cases, a correspondingly strong torque occurs around the blade edge or blade tip, resulting in the pressing of the front wheels into the ground as already explained above. This seriously disrupts the work process. This results in time being lost and, in some cases, damage to the cable plow itself and damage to the land.

It is therefore an object of the invention to provide a new cable plough, in particular a cable plough in which the distance between the front wheels and the rear wheels is variable.

This object is achieved by the features of claim 1. Advantageous embodiments and further developments are specified in the dependent claims.

The cable plow according to the invention comprises a chassis with a central body and with front wheels and rear wheels. The cable plow also comprises a blade suitable for engaging in the ground to form an earth channel, wherein the blade is arranged on a blade holder behind the central body in a designated direction of travel. The cable plow also comprises a sliding beam, wherein an end of the sliding beam located at the rear in the designated direction of travel is arranged on the central body. The cable plow also comprises a carriage, wherein the carriage is arranged displaceably on the sliding beam. The cable plow also comprises a fixing device as a holding means for the carriage on the sliding beam. The rear wheels are arranged on the central body or on the blade holder and the front wheels on the carriage. The distance between the central body and the carriage and thus the distance between the front wheels and the rear wheels can be changed by moving the carriage on the sliding beam using the fixing device.

The advantages of the invention are in particular that by increasing the distance between the front wheels and the rear wheels and thus also from the blade when driving and plowing in the corresponding terrain and with the corresponding risk of a damaging torque occurring due to this increase, the pressure force acting on the front wheels towards the ground is reduced accordingly. The larger the aforementioned distance, the smaller the aforementioned pressure force becomes for the same torque. On the other hand, when operating such a cable plow, there are also situations in practice in which the aforementioned distance, and thus also the axle distance between the front wheels and rear wheels, should be as small as possible. This is the case, for example, when driving on roads or paths that are relatively narrow and have a small curve radius at the bends. In such cases, an axle distance that is too large would either make it impossible to drive through such curves at all or at least require the entire device to be moved forwards and backwards several times. This is not only inconvenient, but on soft ground it can also damage the ground or cause the wheels to dig into the ground. A small axle distance is also necessary if such a cable plough is to be placed on a low-loader and transported to another construction site, because otherwise, i.e. if the axle distance is too large, the cable plough would no longer fit on the low-loader. According to the invention, the center distance can now be increased or reduced depending on the requirements of the situation.

The fixing device is preferably arranged on the carriage, in particular via a longitudinal cylinder, wherein the fixing device is arranged in particular at a front end of the carriage in the intended direction of travel.

The fixing device preferably has two clamp jaws for gripping the sliding bar, each clamp jaw having a contact surface for resting on the sliding bar, the contact surfaces being provided at two first, in particular lower, ends of the clamp jaws. The contact surfaces of the clamp jaws in particular face each other.

The sliding bar has, for example, a "T" or "double-T"-shaped form in cross-section to its longitudinal axis L. It can be provided that the upper, wider area of the "T" or "double-T"-shaped sliding bar is gripped by the clamp jaws.

The fixing device has in particular a U-shaped base profile, wherein the base profile can preferably be placed on the sliding bar. The base profile has a transverse leg and two longitudinal legs. The clamp jaws are preferably arranged on the outer surfaces of the longitudinal legs.

According to a further development, the fixing device has a transverse cylinder arranged perpendicular to the longitudinal axis of the sliding bar, wherein the transverse cylinder is arranged between two second ends of the clamp jaws opposite the first ends of the clamp jaws.

The cross cylinder can be a hydraulic cylinder. Alternatively, the cross cylinder can also be a pneumatic cylinder. The cross cylinder is preferably arranged on the top of the cross leg.

According to a preferred embodiment of the invention, the clamp jaws are arranged at their second ends by means of first swivel joints at the two ends of the transverse cylinder and in an area, in particular centrally, between the two ends of the clamp jaws by means of second swivel joints on outer surfaces of the fixing device, so that a tilting mechanism is realized in which the contact surfaces of the clamp jaws are tilted away from each other when the transverse cylinder is retracted, so that the contact surfaces of the clamp jaws are spaced from the sliding bar, so that the fixing device is released from the sliding bar, and in which the contact surfaces of the clamp jaws are arranged when the transverse cylinder is extended, in particular perpendicular to the longitudinal axis of the sliding bar, such that the contact surfaces of the clamp jaws rest on the sliding bar, so that the fixing device is fixed to the sliding bar. Preferably, a receptacle for the second swivel joints is arranged on the outer surfaces of the longitudinal legs.

A longitudinal cylinder is particularly preferably arranged between the fixing device and the slide, the longitudinal cylinder being aligned parallel to the longitudinal axis of the sliding bar, the distance between the fixing device and the slide being variable by means of the longitudinal cylinder, the longitudinal cylinder having a retracted state in which the fixing device is arranged on the slide or in the area of the slide, and an extended state in which the fixing device is spaced apart from the slide. The longitudinal cylinder can be a hydraulic cylinder. Alternatively, the longitudinal cylinder can also be a pneumatic cylinder. The extended length of the longitudinal cylinder is preferably shorter than the length of the sliding bar.

It can be provided that the distance between the central body and the carriage can be changed by moving the carriage on the sliding beam, in that the carriage is moved or can be moved along the sliding beam in a caterpillar-like movement by means of the fixing device and the longitudinal cylinder.

Preferably, when the fixing device is fixed, retraction of the longitudinal cylinder causes a movement of the carriage towards the fixing device, and when the fixing device is released, extension of the longitudinal cylinder causes a movement of the fixing device away from the carriage.

It can be provided that the caterpillar-like movement in the intended direction of travel can be realized by releasing the fixing device and extending the longitudinal cylinder so that the fixing device is moved away from the carriage, and by, in particular subsequently, fixing the fixing device and retracting the longitudinal cylinder so that the carriage is moved towards the fixing device.

Preferably, this process is repeated until the desired position of the carriage on the sliding beam and thus the desired distance between the front wheels and rear wheels is reached. It can also be provided that the longitudinal cylinder is only partially retracted and extended. Of course, the above-mentioned process can be carried out on any of the parts described. steps begin. This ultimately depends on the state of the fixing device and/or longitudinal cylinder at the start of the shifting process.

It can be provided that when the fixing device is fixed, extending the longitudinal cylinder causes the carriage to move away from the fixing device, and when the fixing device is released, retracting the longitudinal cylinder causes the fixing device to move towards the carriage.

Furthermore, it can be provided that the caterpillar-like movement can be realized opposite to the intended direction of travel by fixing the fixing device and extending the longitudinal cylinder so that the carriage is moved away from the fixing device and by, in particular subsequently, releasing the fixing device and retracting the longitudinal cylinder so that the fixing device is moved towards the carriage.

Of course, the aforementioned shifting process can also begin in the opposite direction to the intended direction of travel at any of the described sub-steps. This depends on the state of the fixing device and/or longitudinal cylinder at the start of the shifting process.

According to one embodiment of the invention, the cable plough comprises a cable guide for inserting the cable into the earth channel formed or formable by the blade, wherein the cable guide is preferably arranged behind the blade in the intended direction of travel.

According to a variant embodiment of the invention, it is provided that the rear wheels are adjustably mounted on the central body or the sword holder via supports, and/or that the front wheels are adjustably mounted on the carriage via supports.

A driver's station can be arranged on the central body. In particular, the cable plough has two front wheels and two rear wheels.

• 1 ein Ausführungsbeispiel eines erfindungsgemäßen Kabelpflugs mit dem Schlitten in einer ersten Position in einer Seitenansicht,
• 2 den Schlitten und die Fixiervorrichtung eines Ausführungsbeispiels eines erfindungsgemäßen Kabelpflugs in einer dreidimensionalen Ansicht;
• 3 die Fixiervorrichtung eines Ausführungsbeispiels eines erfindungsgemäßen Kabelpflugs in einer dreidimensionalen Ansicht;
• 4 die Fixiervorrichtung nach 3 in einer Frontansicht;
• 5 ein Ausführungsbeispiel eines erfindungsgemäßen Kabelpflugs mit dem Schlitten in einer zweiten Position in einer Seitenansicht;
• 6 eine schematische Ablaufskizze des Verschiebevorgangs des Schlittens an dem Schiebebalken eines erfindungsgemäßen Kabelpflugs.

The invention is explained in more detail below with regard to further features and advantages based on the description of embodiments and with reference to the accompanying schematic drawings.

• 1 an embodiment of a cable plough according to the invention with the carriage in a first position in a side view,
• 2 the carriage and the fixing device of an embodiment of a cable plow according to the invention in a three-dimensional view;
• 3 the fixing device of an embodiment of a cable plow according to the invention in a three-dimensional view;
• 4 the fixing device after 3 in a front view;
• 5 an embodiment of a cable plough according to the invention with the carriage in a second position in a side view;
• 6 a schematic flow chart of the sliding process of the carriage on the sliding beam of a cable plough according to the invention.

Corresponding parts and components are designated by the same reference numerals in the figures, even across the various embodiments.

1 shows an embodiment of a cable plough 10 according to the invention for introducing at least one line 11, in particular at least one pipe or cable, into the ground. The cable plough 10 according to the invention comprises a chassis 12 with a central body 13 and with front wheels 14 and rear wheels 15. In total, two front wheels 14 and two rear wheels 15 are provided. A driver's stand 34 is also arranged on the central body 13.

The cable plough 10 further comprises a blade 16 suitable for engaging in the subsoil to form a trench, the blade 16 being arranged in a designated direction of travel F behind the central body 13 on a blade holder 17. The cable plough 10 also comprises a (not shown) 1 , but in 5 shown) cable guide 28 for laying the cable 11 in the earth channel formed or formable by the blade 16, wherein the cable guide 28 is arranged behind the blade 16 in the intended direction of travel F.

1 shows that the cable plow 10 comprises a sliding beam 18, wherein an end of the sliding beam 18 located at the rear in the intended direction of travel F is arranged on the central body 13. The cable plow 10 also comprises a carriage 19, wherein the carriage 19 is arranged displaceably on the sliding beam 18. Furthermore, the cable plow comprises a fixing device 20 as a holding means for the carriage 19 on the sliding beam 18.

The rear wheels 15 are arranged via supports 29 on the central body 13 and the front wheels 14 are arranged via supports 29 on the carriage 19. net, wherein the distance A between the central body 13 and the carriage 19 and thus the distance between the front wheels 14 and the rear wheels 15 can be changed by moving the carriage 19 on the sliding bar 18 using the fixing device 20.

2 shows that the fixing device 20 is arranged on the carriage 19, wherein the fixing device 20 is arranged at a front end of the carriage 19 in the intended direction of travel F.

3 and 4 show that the fixing device 20 has two clamp jaws 21 for gripping the sliding bar 18, wherein each clamp jaw 21 has a contact surface 22 for resting on the sliding bar 18, wherein the contact surfaces 22 are provided at two first, lower ends of the clamp jaws 21. The contact surfaces 22 of the clamp jaws 21 face each other.

The fixing device 20 has a U-shaped base profile 30, wherein the base profile 30 can be placed on the sliding bar 18. The base profile 30 has a transverse leg 31 and two longitudinal legs 32. The clamp jaws 21 are arranged on the outer surfaces 26 of the longitudinal legs 32.

The fixing device 20 has a transverse cylinder 23 arranged perpendicular to the longitudinal axis L of the sliding bar 18, wherein the transverse cylinder 23 is arranged between two second ends of the clamp jaws 21 opposite the first ends of the clamp jaws 21. The transverse cylinder 23 is preferably a hydraulic cylinder. The transverse cylinder 23 is arranged on the upper side of the transverse leg 31.

The clamp jaws 21 are arranged at their second ends by means of first swivel joints 24 at the two ends of the transverse cylinder 23 and in an area centrally between the two ends of the clamp jaws 21 by means of second swivel joints 25 on the outer surfaces 26 of the fixing device 20. A receptacle 33 for the second swivel joints 25 is arranged on the outer surfaces 26 of the longitudinal legs 32. Thus, a tilting mechanism is realized in which the contact surfaces 22 of the clamp jaws 21 are tilted away from each other when the cross cylinder 23 is retracted, so that the contact surfaces 22 of the clamp jaws 21 are spaced from the sliding bar 18, so that in turn the fixing device 20 is released from the sliding bar 18, and in which the contact surfaces 22 of the clamp jaws 21 are arranged perpendicular to the longitudinal axis L of the sliding bar 18 when the cross cylinder 23 is extended, such that the contact surfaces 22 of the clamp jaws 21 rest on the sliding bar 18, so that the fixing device 20 is fixed to the sliding bar 18. 3 and 4 show the extended state of the transverse cylinder 23, in which the contact surfaces 22 would rest on the sliding bar 18 and the fixing device 20 would thus be fixed to the sliding bar 18.

Between fixing device 20 and carriage 19, as 2 shows, a longitudinal cylinder 27 is arranged, wherein the longitudinal cylinder 27 is aligned parallel to the longitudinal axis L of the sliding bar 18, wherein the distance between the fixing device 20 and the carriage 19 can be changed by means of the longitudinal cylinder 27, wherein the longitudinal cylinder 27 has a retracted state in which the fixing device 20 is arranged on the carriage 19 or in the region of the carriage 19 (as in 1 shown), and has an extended state in which the fixing device 20 is spaced from the carriage 19 (as in 5 shown). The longitudinal cylinder 27 is preferably a hydraulic cylinder. The extension length of the longitudinal cylinder 27 is shorter than the length of the sliding beam 18.

The distance A between the central body 13 and the carriage 19 can be changed by moving the carriage 19 on the sliding beam 18, in that the carriage 19 is moved along the sliding beam 18 by means of the fixing device 20 and the longitudinal cylinder 27 in a caterpillar-like movement. When the fixing device 20 is fixed, retracting the longitudinal cylinder 27 causes the carriage 19 to move towards the fixing device 20, and when the fixing device 20 is loosened, extending the longitudinal cylinder 27 causes the fixing device 20 to move away from the carriage 19. When the fixing device 20 is fixed, extending the longitudinal cylinder 27 causes the carriage 19 to move away from the fixing device 20. When the fixing device 20 is loosened, retracting the longitudinal cylinder 27 causes the fixing device 20 to move towards the carriage 19.

The caterpillar-like movement can be implemented in the intended direction of travel F by releasing the fixing device 20 and then extending the longitudinal cylinder 27 so that the fixing device 20 is moved away from the carriage 19 in the intended direction of travel F, and by then fixing the fixing device 20 again to the sliding beam 18 and then retracting the longitudinal cylinder 27 so that the carriage 19 is moved towards the fixing device 20 in the intended direction of travel F. This process is repeated until the desired position of the carriage 19 on the sliding beam 18 and thus the desired distance between the front wheels 14 and the rear wheels 15 is reached. It can also be provided that the longitudinal cylinder 27 is only partially retracted, particularly in a final step, in order to enable exact positioning of the carriage 19 on the sliding beam 18. The shifting process explained above is shown schematically in 6 Naturally, the above-mentioned process can begin at any of the described sub-steps. This ultimately depends on the state of the fixing device 20 and/or longitudinal cylinder 27 at the start of the displacement process.

The caterpillar-like movement can be implemented in the opposite direction to the intended direction of travel F by fixing the fixing device 20 and extending the longitudinal cylinder 27 so that the carriage 19 is moved away from the fixing device 20 in the opposite direction to the intended direction of travel F, and by then releasing the fixing device 20 and retracting the longitudinal cylinder 27 so that the fixing device 20 is moved towards the carriage 20 in the opposite direction to the intended direction of travel F. This process is also repeated until the desired position of the carriage 19 on the sliding beam 18 and thus the desired distance between the front wheels 14 and the rear wheels 15 is reached. Of course, the aforementioned displacement process in the opposite direction to the intended direction of travel F can also begin at any of the sub-steps described. This also depends on the state of the fixing device 20 and/or the longitudinal cylinder 27 at the start of the displacement process.

List of reference symbols

10

Cable plow

11

Line

12

chassis

13

central body

14

Front wheels

15

Rear wheels

16

sword

17

Sword holder

18

Slide bar

19

Sleds

20

Fixing device

21

Clamp jaw

22

Contact surface

23

Cross cylinder

24

first swivel joint

25

second swivel joint

26

Exterior surface

27

Longitudinal cylinder

28

Cable routing

29

Support

30

Basic profile

31

Cross leg

32

Longitudinal leg

33

Recording

34

Driver's cab

F

Direction of travel

A

Distance

L

Longitudinal axis

Claims (15)

Cable plow (10) for introducing at least one line (11), in particular at least one pipe or cable, into the ground, comprising a chassis (12) with a central body (13) and with front wheels (14) and rear wheels (15), a blade (16) suitable for engaging in the ground to form an earth channel, wherein the blade (16) is arranged behind the central body (13) on a blade holder (17) in an intended direction of travel (F), a sliding beam (18), wherein an end of the sliding beam (18) located at the rear in the intended direction of travel (F) is arranged on the central body (13), a carriage (19), wherein the carriage (19) is arranged displaceably on the sliding beam (18), a fixing device (20) as a holding means for the carriage (19) on the sliding beam (18), wherein the rear wheels (15) are on the central body (13) or on the Sword holder (17) and the front wheels (14) are arranged on the carriage (19), and wherein the distance (A) between the central body (13) and the carriage (19) and thus the distance between the front wheels (14) and the rear wheels (15) can be changed by moving the carriage (19) on the sliding bar (18) using the fixing device (20). Cable plow to Claim 1 , characterized in that the fixing device (20) is arranged on the carriage (19), wherein the fixing device (20) is arranged in particular at a front end of the carriage (19) in the intended direction of travel (F). Cable plow to Claim 1 or 2 , characterized in that the fixing device (20) has two clamp jaws (21) for gripping the sliding bar (18), wherein each clamp jaw (21) has a contact surface (22) for resting on the sliding bar (18), wherein the contact surfaces (22) are provided at two first, in particular lower, ends of the clamp jaws (21). Cable plow to Claim 3 , characterized in that the fixing device (20) has a transverse cylinder (23) arranged perpendicular to the longitudinal axis (L) of the sliding bar (18), wherein the transverse cylinder (23) is arranged between two second ends of the clamp jaws (21) opposite the first ends of the clamp jaws (21). Cable plow to Claim 4 , characterized in that the clamp jaws (21) are arranged at their second ends by means of first pivot joints (24) at the two ends of the transverse cylinder (23) and in an area, in particular centrally, between the two ends of the clamp jaws (21) by means of second pivot joints (25) on outer surfaces (26) of the fixing device (20), so that a tilting mechanism is realized in which the contact surfaces (22) of the clamp jaws (21) are tilted away from each other when the transverse cylinder (23) is retracted, so that the contact surfaces (22) of the clamp jaws (21) are spaced from the sliding bar (18), so that the fixing device (20) is released from the sliding bar (18), and in which the contact surfaces (22) of the clamp jaws (21) are arranged when the transverse cylinder (23) is extended, in particular perpendicular to the longitudinal axis (L) of the sliding bar (18), such that the contact surfaces (22) the clamp jaws (21) rest on the sliding bar (18) so that the fixing device (20) is fixed to the sliding bar (18). Cable plow according to one of the preceding claims, characterized in that a longitudinal cylinder (27) is arranged between the fixing device (20) and the carriage (19), the longitudinal cylinder (27) being aligned parallel to the longitudinal axis (L) of the sliding bar (18), the distance between the fixing device (20) and the carriage (19) being variable by means of the longitudinal cylinder (27), the longitudinal cylinder (27) having a retracted state in which the fixing device (20) is arranged on the carriage (19) or in the region of the carriage (19), and an extended state in which the fixing device (20) is spaced apart from the carriage (19). Cable plow to Claim 6 , characterized in that the extension length of the longitudinal cylinder (27) is shorter than the length of the sliding bar (18). Cable plow to Claim 6 or 7 , characterized in that the distance (A) between the central body (13) and the carriage (19) can be changed by means of displacement of the carriage (19) on the sliding beam (18) in that the carriage (19) is displaced or can be displaced in a caterpillar-like movement along the sliding beam (18) by means of the fixing device (20) and the longitudinal cylinder (27). Cable plow after one of the Claims 6 until 8 , characterized in that when the fixing device (20) is fixed, retraction of the longitudinal cylinder (27) causes a movement of the carriage (19) towards the fixing device (20), and when the fixing device (20) is released, extension of the longitudinal cylinder (27) causes a movement of the fixing device (20) away from the carriage (19). Cable plow to Claim 8 , characterized in that the caterpillar-like movement in the intended direction of travel (F) can be realized by releasing the fixing device (20) and extending the longitudinal cylinder (27) so that the fixing device (20) is moved away from the carriage (19), and by fixing the fixing device (20) and retracting the longitudinal cylinder (27) so that the carriage (19) is moved towards the fixing device (20). Cable plow after one of the Claims 6 until 10 , characterized in that when the fixing device (20) is fixed, an extension of the longitudinal cylinder (27) causes a movement of the carriage (19) away from the fixing device (20), and when the fixing device (20) is released, a retraction of the longitudinal cylinder (27) causes a movement of the fixing device (20) towards the carriage (19). Cable plow to Claim 8 , characterized in that the caterpillar-like movement opposite to the intended direction of travel (F) can be realized by fixing the fixing device (20) and extending the longitudinal cylinder (27) so that the carriage (19) is moved away from the fixing device (20), and by releasing the fixing device (20) and retracting the longitudinal cylinder (27) so that the fixing device (20) is moved towards the carriage (20). Cable plough according to one of the preceding claims, characterized in that the cable plough (10) comprises a line guide (28) for inserting the line (11) into the earth channel formed or formable by the blade (16), wherein the line guide (28) is preferably arranged behind the blade (16) in the intended direction of travel (F). Cable plough according to one of the preceding claims, characterized in that the rear wheels (15) are adjustably attached to the central body (13) or the blade holder (17) via supports (29), and/or that the front wheels (14) are adjustably attached to the carriage (19) via supports (29). Cable plough according to one of the preceding claims, characterized in that a driver's station (34) is arranged on the central body (13).

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