CN202298695U - Bulldozer - Google Patents

Abstract

A bulldozer comprises a blade (6), a hydraulic winch (1) and a guide mechanism (2) for guiding a cable (3) on the hydraulic winch, wherein the hydraulic winch (1) is installed at the front part of the bulldozer, and the guide mechanism (2) is installed on the blade (6) of the bulldozer. The utility model discloses a bull-dozer is leading with hydraulic capstan, from not influencing the installation of agitator, make the existing operation function of loosening the soil of bull-dozer, there is the operation function of pulling the rescue again, install guiding mechanism on the spiller simultaneously, increased the distance between guiding mechanism and the hydraulic capstan, this can adjust the tensile angle of hawser effectively, it is through separately arranging guiding mechanism and hydraulic capstan, make the volume of guiding mechanism's guide roll reduce, thereby the whole volume of hydraulic capstan has been reduced effectively.

Description

bulldozer

technical field

The utility model relates to engineering machinery equipment, in particular to a bulldozer.

Background technique

The winch is widely used in bulldozers, loaders and other construction machinery equipment as a working device for self-rescue, mutual rescue and pulling heavy objects. There are many types of winches, which can be divided into electric winches, pneumatic winches, manual winches and hydraulic winches according to the different driving forces of the winches. The winch used on the bulldozer is usually a hydraulic winch, which is mainly because the bulldozer generally has a hydraulic control system, so the hydraulic winch can be easily driven through the hydraulic medium.

The structure of the hydraulic winch is known, and it generally includes a rope arrangement, a rope pressing mechanism, an anti-slip device, a manual clutch device (i.e. a manual disengagement device), a hydraulic motor, and a speed reduction mechanism. The working process is generally that the hydraulic pump transmits the hydraulic medium to the winch hydraulic motor through the direction control valve, and the winch hydraulic motor drives the cable reel of the hydraulic winch through the reduction mechanism, so as to realize the retraction and release of the cable (such as a steel rope). The winch hydraulic motor There is generally a manual clutch device between the deceleration mechanism to selectively disconnect or engage the power transmission during operation. There are many kinds of formed products of hydraulic winches, such as the hydraulic winches disclosed in patent documents such as CN2737767, CN2654582, CN201777807 and CN2687087.

But, referring to shown in Fig. 1, on existing bulldozer, hydraulic winch 1 is generally installed in the rear portion of bulldozer, specifically, hydraulic winch 1 shown in Fig. On the rear axle box rear plane 103, that is, the hydraulic winch 1 adopts a rear arrangement structure, wherein the hydraulic winch is connected with a hydraulic pipe 5, so as to be connected to a hydraulic pump not shown in Fig. 1 through the hydraulic pipe 5, the hydraulic winch 1 A cable 3 (such as a steel cable or cable) is guided by a guide mechanism 2 , and a hook 4 is connected to the end of the cable 3 . In this hydraulic winch layout structure, the guide mechanism 2 is installed on the winch bracket to form an integral structure with the hydraulic winch 1. The distance between the guide mechanism 2 and the hydraulic winch 1 is relatively close. In order to ensure the guiding function, the outer guide roller of the guide mechanism 2 The diameter generally needs to be relatively large, which makes the overall volume of the hydraulic winch 1 relatively large.

Knownly, the rear portion of a bulldozer generally needs to be provided with a ripper, especially a military bulldozer (i.e. a military high-speed bulldozer) needs to have the ability to quickly remove obstacles and dig mountains to open roads, and it is more necessary to install a ripper for use in hard soil, clay, and gravel. Wait for the pre-loosening operation. But the hydraulic winch arrangement structure of this prior art makes it impossible to install the ripper of the bulldozer at the same time, especially when needing to carry out loose soil operation, can only install the ripper after the hydraulic winch 1 is disassembled, or add additional operating equipment, this It causes a lot of waste in time and manpower, so that the comprehensive performance of the bulldozer is limited. Moreover, the integral structure of the hydraulic winch 1 and the guide mechanism 2 makes the volume of the guide mechanism 2 installed on the winch bracket 101 larger.

In view of the above-mentioned defects of existing bulldozers, it is necessary to design a bulldozer adopting a novel hydraulic winch arrangement.

Utility model content

The technical problem to be solved by the utility model is to provide a bulldozer, which can ensure the installation of the hydraulic winch without affecting the installation of the ripper, thereby improving the comprehensive performance of the bulldozer.

In order to solve the above technical problems, the utility model provides a bulldozer, including a blade, a hydraulic winch and a guide mechanism for guiding the cables on the hydraulic winch, the hydraulic winch is installed at the front of the bulldozer, and the guide mechanism Installed on the blade of the bulldozer.

Specifically, the hook end of the cable is provided with a hook.

Preferably or alternatively, the guide mechanism is provided with rotatable guide rollers or pulleys.

Preferably, the guide mechanism is installed on the upper part of the blade.

Further preferably, the guide mechanism is installed in the upper middle area of the blade.

Preferably, the hydraulic winch is mounted to a front end face of an engine compartment cover of the bulldozer.

Specifically, the two hydraulic pipe joints of the hydraulic winch are respectively connected to the hydraulic pump and the oil tank through hydraulic pipes and directional control valves.

Specifically, the hydraulic pipe is supported and fixed on the front part of the frame of the bulldozer by a hydraulic pipe support.

Preferably, a ripper is installed at the rear of the bulldozer.

Optionally, the hydraulic winch has a rope arranging mechanism for arranging the cables and a rope pressing mechanism for the cables on the cable drum of the hydraulic winch.

Through the above-mentioned technical scheme, the advantages of the bulldozer of the present invention are: first, the hydraulic winch is placed in front, so that the installation of the ripper is not affected, so that the bulldozer has both the function of loosening soil and the function of traction and rescue work; In this kind of bulldozer, the nose of the bulldozer faces the towed vehicle, which is beneficial for the driver to observe the state of the towed vehicle, so that the operation is more convenient and the safety is better; thirdly, the guide mechanism is installed on the blade to increase the The distance between the guide mechanism and the hydraulic winch is improved, which can effectively adjust the pulling angle of the cable; fourth, the separate arrangement of the guide mechanism and the hydraulic winch can usually reduce the volume of the guide roller of the guide mechanism, thereby effectively Greatly reduces the overall volume of the hydraulic winch.

Other features and advantages of the present utility model will be described in detail in the following specific embodiments.

Description of drawings

The following drawings are used to provide a further understanding of the utility model, and constitute a part of the description, which are used together with the following specific embodiments to explain the utility model, but the scope of protection of the utility model is not limited to the following accompanying drawings and specific implementation methods. In the attached picture:

Fig. 1 is a schematic diagram of a hydraulic winch arrangement structure in a bulldozer in the prior art.

Fig. 2 is a schematic front view of the arrangement structure of the hydraulic winch in the bulldozer according to the specific embodiment of the present invention, in which only the front part of the bulldozer on which the hydraulic winch is installed is shown.

Fig. 3 is a partially enlarged top view of the guide mechanism on the bulldozer of the present invention installed on the blade.

Fig. 4 is a schematic structural diagram of an exemplary hydraulic winch used in the bulldozer of the present invention.

Explanation of reference signs:

1 hydraulic winch; 2 guiding mechanism;

3 cables; 4 hooks;

5 hydraulic pipes; 6 blades;

7 frame; 8 engine hatch;

9 engine; 10 hydraulic pipe support;

11 Rope arrangement mechanism; 12 Rope pressure mechanism;

13 hydraulic pipe joints;

101 winch bracket; 102 rear axle box;

103 rear axle box rear plane.

Detailed ways

The specific embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present utility model, and the protection scope of the present utility model is not limited to the following Detailed ways.

First of all, it should be noted that for the purpose of clearly defining the technical solution, some orientation words involved in the description of the utility model, such as "up", "down", "front", "rear", etc. are all relative to the bulldozer For example, the blade end of a bulldozer is "front end" and the tail end is "rear end". In addition, it should be noted that the main technical idea of the utility model is to provide a hydraulic winch layout scheme, rather than the specific structure of the hydraulic winch, therefore, the hydraulic winch shown in Figure 4 is only the hydraulic winch layout structure of the utility model The example of the hydraulic winch adopted, the bulldozer of the present utility model can adopt various hydraulic winches, and the specific structure of the hydraulic winch itself should not constitute the restriction to the scope of protection of the utility model.

Referring to Fig. 2 and shown in Fig. 3, the bulldozer of the present utility model comprises blade 6, hydraulic capstan 1 and the guiding mechanism 2 that is used to guide the cable 3 on this hydraulic capstan, wherein, hydraulic capstan 1 is installed in the front portion of bulldozer , the guide mechanism 2 is installed on the blade 6 of the bulldozer.

In the above-mentioned technical scheme of the present utility model, the hydraulic winch 1 can adopt various existing forming hydraulic winches. winch. Apparently, hydraulic winches generally have a cable reel, on which a cable 3 (preferably a steel rope or a steel cable) is wound, and the hydraulic winch motor drives the cable reel forward or reverse through a speed reduction mechanism. Realize the operation of receiving or releasing the rope. The above-mentioned guide mechanism 1 is mainly used to guide the cable 3 , and this structure is well known to those skilled in the art. The hook end of the cable is provided with a hook 4 , and the hook end bypasses the guide piece of the guide mechanism 2 . The guide mechanism 2 can adopt various types known to those skilled in the art, such as a guide mechanism with guide rollers (shown in FIGS. 2 and 3 ), a guide mechanism using pulleys, a guide mechanism using guide grooves, and the like. The specific structural form of the guiding mechanism 2 can have many kinds, as long as it can effectively realize the cable guiding, the utility model is not limited to this.

Through the above-mentioned technical scheme, since the utility model arranges the hydraulic winch 1 at the front of the bulldozer, and ingeniously installs the guide mechanism 2 on the blade 6 of the bulldozer, the hydraulic winch arrangement adopted by the bulldozer of the utility model is as follows The front arrangement scheme, in this case, will not have any impact on the ripper that needs to be installed at the rear of the bulldozer, and the bulldozer, especially the military bulldozer, can be equipped with a hydraulic winch 1 and a ripper at the same time, thereby significantly improving the overall performance of the bulldozer Usability can be very conveniently switched between soil loosening operations and rescue operations by hydraulic winches, without the need to dismantle hydraulic winches 1 to install scarifiers when loosening soil as in the prior art (and vice versa ), thus saving a lot of operating time and avoiding the waste of manpower.

The detailed structure of the bulldozer of the present invention will be described below with reference to FIG. 2 and FIG. 3 , which will involve some preferred embodiments and simple variants of the arrangement of the hydraulic winch.

As shown in Figure 2, well known to those skilled in the art, the blade 6 of the bulldozer is hinged on the front portion of the vehicle frame 7 of the bulldozer (those skilled in the art also refer to the front portion of the vehicle frame 7 as "blade frame") ”), the guide mechanism 2 is generally installed on the top of the blade 6, preferably, the guide mechanism 2 is installed on the upper middle area of the blade 6. The guide mechanism 2 can be directly installed on the blade 6, and of course also can be installed on the blade 6 through a mounting bracket. Referring to FIG. 3 , preferably, the guide mechanism 2 is provided with rotatable guide rollers. Of course, as mentioned above, the guide mechanism 2 is not limited to the type shown in FIG. guides, etc.

Hydraulic winch 1 is installed on the front portion of bulldozer, and its specific installation position can be designed according to the specific structural shape of bulldozer front housing, preferably, as shown in Figure 2, hydraulic winch 1 is installed on the engine compartment cover 8 by winch bracket On the front face, obviously, the engine compartment cover 8 serves to accommodate the engine 9 .

Referring to Fig. 2 and Fig. 4, the two hydraulic pipe joints 13 of the hydraulic winch 1 are respectively connected to a hydraulic pump and an oil tank not shown in Fig. 2 through a hydraulic pipe 5 via a directional control valve. This is well known to those skilled in the art. The directional control valve is mainly used for reversing the oil circuit to drive the hydraulic motor of the winch to achieve forward and reverse rotation. Above-mentioned hydraulic pipe 5 is shown as seamless steel pipe in Fig. 2 (the required oil pressure of hydraulic capstan is higher, needs to adopt seamless steel pipe, and can not adopt seam steel pipe or copper pipe), this hydraulic pipe 5 passes hydraulic pipe support 10 Be installed on the vehicle frame 7 of bulldozer. It should be noted that the hydraulic pipe 5 is not limited to the form of the seamless steel pipe mentioned above, and it can also be in the form of a hydraulic hose, such as a high-pressure hose.

Fig. 4 exemplarily shows the hydraulic winch 1 adopted by the bulldozer in Fig. 2, the hydraulic winch 1 belongs to the existing molded product, and it is basically the same as the hydraulic winch disclosed in the Chinese utility model patent CN2687087, the hydraulic winch is composed of a rope arrangement 11 , a rope pressing mechanism 12, an anti-slip device (i.e. a brake), a manual clutch device (i.e. a manual release device), a winch hydraulic motor, a planetary reduction mechanism, a cable reel, etc., wherein one end of the hydraulic winch 1 is provided with a winch hydraulic motor , the winch hydraulic motor is connected to the driving part of the planetary reduction mechanism, and the cable reel is connected to the driven part of the planetary reduction mechanism. A cable 3 is wound on the cable reel, and by driving the cable reel forward and reverse, it is possible to realize releasing and receiving the rope. The existing hydraulic winch 1 is generally also provided with a rope arrangement 11 and a rope pressing mechanism 12 for making the cables 3 arranged in an orderly manner, wherein the rope arrangement 11 is mainly through a known sheave mechanism (the so-called pulley mechanism in the prior art CN2687087). Needle-groove wheel transmission mechanism) transmission makes the circulating screw with spiral groove move intermittently, so that the guide rope pulley installed on the circulating screw does reciprocating linear motion to achieve orderly rowing of ropes. The rope pressing mechanism is actually a pressing plate. It is used to hold down the cable on the cable drum to prevent it from running. The detailed structure of the hydraulic winch 1 can be referred to Chinese utility model patent CN2687087. However, it should be noted here that, as mentioned above, the hydraulic winch 1 shown in Figure 4 is only an example of a hydraulic winch, but the main technical idea of the utility model is to provide a bulldozer adopting a new hydraulic winch arrangement structure, It can be applied to the arrangement of various hydraulic winches, such as the prior art hydraulic winches described in CN2737767, CN2654582 and CN201777807.

The bulldozer of the present utility model can be various types of bulldozers, such as military bulldozers or blasting bulldozers. In addition, preferably, a ripper is installed at the rear of the bulldozer.

The following briefly describes the operation process of the hydraulic winch of the utility model bulldozer, and its overall working process is: hydraulic pump → direction control valve → winch hydraulic motor → speed reduction mechanism → cable reel → cable (such as steel rope). Specifically, the hydraulic pipe 5 is connected to the hydraulic pipe joint 13 of the hydraulic winch 1, and the direction of the hydraulic oil is changed through the directional control valve, so that the winch hydraulic motor can achieve different rotation directions. When the oil enters, the hydraulic motor drives the speed reduction mechanism ( For example, the cable reel connected by the planetary reduction mechanism) rotates, so that the steel rope on the cable reel can be reeled or unwound. rescue or self-rescue work.

As can be seen from the above description, the bulldozer of the present invention has the following advantages: first, the hydraulic winch 1 is placed in front, so that the installation of the ripper is not affected, so that the bulldozer has both the function of loosening soil and the function of traction and rescue operations; Second, under this layout structure, the nose of the bulldozer faces the towed vehicle, which is beneficial for the driver to observe the state of the towed vehicle, so that the operation is more convenient and the safety is better; third, the guide mechanism is installed on the shovel On the knife, it is preferably installed on the upper part of the blade, which increases the distance between the guide mechanism and the hydraulic winch, which can effectively adjust the tension angle of the cable; fourth, the separate arrangement of the guide mechanism and the hydraulic winch can generally make The volume of the guide roller of the guide mechanism is reduced, which effectively reduces the overall volume of the hydraulic winch.

The preferred embodiment of the utility model has been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the specific details of the above-mentioned embodiment, and within the scope of the technical concept of the utility model, the technical solution of the utility model can be carried out in many ways. These simple modifications all belong to the protection scope of the present utility model. For example, the seamless steel pipe described above as the hydraulic pipe 5 may be changed to a hydraulic hose.

In addition, it should be noted that the various specific technical features described in the above specific implementation manners may be combined in any suitable manner if there is no contradiction. In order to avoid unnecessary repetition, the utility model will not further describe various possible combinations.

In addition, any combination of various implementations of the present invention can also be made, as long as they do not violate the idea of the present invention, they should also be regarded as the disclosed content of the present invention.

Claims (10)

1. bulldozer; Comprise perching knife (6), hydraulic capstan (1) and be used for guiding mechanism (2) the hawser on this hydraulic capstan (3) guiding; It is characterized in that said hydraulic capstan (1) is installed in the front portion of bulldozer, said guiding mechanism (2) is installed on the perching knife (6) of said bulldozer.

2. bulldozer according to claim 1 is characterized in that, the suspension hook end of said hawser (3) is provided with suspension hook (4).

3. bulldozer according to claim 1 is characterized in that, said guiding mechanism (2) is provided with the guide roller or the pulley that can rotate.

4. bulldozer according to claim 1 is characterized in that, said guiding mechanism (2) is installed in the top of said perching knife (6).

5. bulldozer according to claim 4 is characterized in that, said guiding mechanism (2) is installed in the top zone line of said perching knife (6).

6. bulldozer according to claim 1 is characterized in that, said hydraulic capstan (1) is installed on the front end face of engine compartment cover (8) of said bulldozer.

7. bulldozer according to claim 1 is characterized in that, two hydraulic fittings (13) of said hydraulic capstan (1) are connected in hydraulic pump and fuel tank through hydraulic tube (5) via directional control valve respectively.

8. bulldozer according to claim 7 is characterized in that, said hydraulic tube (5) is supported and fixed on through hydraulic tube support (10) on the anterior part of vehicle frame (7) of said bulldozer.

9. bulldozer according to claim 1 is characterized in that the rear portion of said bulldozer is equipped with ridge buster.

10. according to each described bulldozer in the claim 1 to 9, it is characterized in that said hydraulic capstan (1) has the pressure rope mechanism (12) of rope-arranging mechanism (11) that is used to arrange hawser and the hawser (3) on the cable reel that is used for this hydraulic capstan.

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