CN206606990U - A kind of tight turn radius industrial vehicle - Google Patents

Abstract

The utility model relates to the field of automatic mechanical equipment, in particular to an industrial vehicle with a small turning radius. The utility model is realized through the following technical solutions: an industrial vehicle with a small turning radius, which includes a vehicle body and a cargo fork connected to the vehicle body, and also includes a vehicle bottom connected to the vehicle body, and the vehicle bottom includes a connecting portion and a The legs located on both sides of the connecting portion are provided with driving wheels, and the connecting portions are equipped with steering wheels. The purpose of the utility model is to provide an industrial vehicle with a small turning radius. The wheel set of the vehicle is redesigned, the volume is small, the turning radius is small, and the in-situ steering can also be realized.

Description

An industrial vehicle with a small turning radius

technical field

The utility model relates to the field of automatic mechanical equipment, in particular to an industrial vehicle with a small turning radius.

Background technique

Industrial vehicles refer to power-driven motor vehicles used to carry, push, tow, lift, stack or stack various goods. Common industrial vehicles include forklifts, side forklifts, tractors, pallet trucks, stackers and so on.

In the use of industrial vehicles, the two actions of handling, inserting and extracting goods and walking and turning are the routine actions of industrial vehicles, and they are also the two most important actions. Naturally, they have become the design focus of industrial vehicle designers. Existing industrial vehicles are often provided with driving wheels on the vehicle chassis, and the driving wheels also have a steering function to control the walking and steering of the vehicle.

Such industrial vehicles can operate normally, but the turning radius is often large when turning. However, there are multiple shelves and aisles arranged in the shelves in the workshop. When the turning radius is too large, the vehicle turns in the aisle. It is very inconvenient, and it is easy to interfere or collide with the shelves next to it.

Utility model content

The purpose of the utility model is to provide an industrial vehicle with a small turning radius. The wheel set of the vehicle is redesigned, the volume is small, the turning radius is small, and the in-situ steering can also be realized.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: an industrial vehicle with a small turning radius, which includes a vehicle body and a cargo fork connected with the vehicle body, and also includes a vehicle bottom connected with the vehicle body. The bottom includes a connecting portion and legs located on both sides of the connecting portion, the driving wheels are installed on the legs, and steering wheels are installed on the connecting portion.

As a preference of the present utility model, the driving wheel includes a wheel body and a rotating shaft connected to the wheel body, the rotating shaft is installed on a connecting support, the rotating shaft is connected to a reduction gear, and the reducing speed The device is driven by a motor, and the connection support is installed on the vehicle leg.

As a preference of the present invention, the wheel body is located on one side of the connecting support, and the motor and the reduction gear are located on the other side of the connecting support.

As a preference of the present utility model, the motor and the reduction gear are placed laterally.

As a preference of the present utility model, the pallet is lifted by the fork, and the minimum rotation circular trajectory of the vehicle can be calculated according to the shape of the vehicle body, the bottom of the vehicle and the size of the pallet, and the two driving The line connecting the wheel centers of the wheels passes through the center of the circular track of minimum rotation.

As a preference of the present invention, a slot is opened on the connecting part, and the steering wheel is located in the slot.

As a preference of the present invention, it also includes an angle sensing device for measuring the current steering angle of the steering wheel, and the driving wheel adjusts the operating state according to the value of the angle sensing device.

As a preference of the present utility model, the steering wheel is connected with a separate driving device.

As a preference of the present invention, the two legs are located outside the fork, and the extension direction of the legs is parallel to the extension direction of the fork.

As a preference of the present invention, an auxiliary support wheel is provided on the side of the driving wheel away from the steering wheel on the leg.

As a preference of the present utility model, the auxiliary supporting wheel is a universal wheel.

As a preference of the present utility model, the fork is connected to a movable mast, and the movable mast can move relative to the vehicle body by means of a push-out device.

As a preference of the present invention, the push-out direction of the moving mast is parallel to the extension direction of the legs, one end of the push-out device is connected to the push-out moving mast, and the other end is connected to the vehicle body.

As a preference of the present utility model, the legs are provided with rails for the sliding of the mobile mast.

As a preference of the present utility model, the moving mast is also provided with a lifting device for pulling the fork up and down.

In summary, the utility model has the following beneficial effects:

1. Through the setting of steering wheels and driving wheels on the bottom of the vehicle and the design of their installation positions, the vehicle has a smaller turning radius, and it is not easy to interfere with the shelf when the workshop is turning.

2. The driving wheel can be adjusted according to the rotation direction of the steering wheel, which is convenient and quick.

3. The fork can be set on the movable mast, and can be extended and retracted, so as to adjust the front and rear positions of the fork and obtain a smaller rotation radius.

Description of drawings:

Fig. 1 is the schematic diagram of embodiment 1;

Figure 2 is a schematic diagram of the rotation of the bottom perspective when the vehicle is loaded with pallets;

Fig. 3 is the schematic diagram of embodiment 2;

Fig. 4 is the schematic diagram of embodiment 3;

Fig. 5 is a schematic diagram of a drive wheel.

In the picture:

1. Body, 2. Bottom, 21. Leg, 22. Connecting part, 221. Groove, 3. Steering wheel, 4. Driving wheel, 4. Driving wheel, 41. Motor, 42. Speed reduction device, 43. Connecting support, 44, wheel body, 45, rotating shaft, 46, wheel hub fixture, 5, auxiliary support wheel, 6, cargo fork, 7, mobile mast, 8, push-out device, 9, lifting device.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Embodiment 1, as shown in FIG. 1 , includes a vehicle body 1. The vehicle body 1 is the main body of the vehicle and extends vertically. The vehicle bottom 2 includes two vehicle legs 21 and a connecting portion 22 connecting the two vehicle legs 21 . In the connecting portion 22 , a slot 221 is opened, and the steering wheel 3 is located in the slot 221 . The steering wheel 3 does not use a universal wheel, and the angle of the steering wheel 3 can be captured by an angle sensing device, and real-time steering data of the steering wheel 3 can be collected.

Steering wheel 3 can adopt independent driving device, for example connects steering motor separately, the steering of steering wheel 3 like this is more accurate and stable.

The legs 21 extend forward, and the extension angles of the two legs 21 and the cargo fork 6 are parallel and forward. The driving wheel 4 is provided on the leg 21. The driving mode of the driving wheel 4 can be electric drive. When steering is required, the driving wheels 4 on both sides can be adjusted to rotate forward or reverse respectively, and the speed differential can also be adjusted. , to realize the steering of different trajectories. And the speed adjustment and forward and reverse adjustment of the drive wheel 4 can be taken as parameters according to the real-time steering data of the steering wheel 3 captured by the angle sensing device.

In the first embodiment, the direction close to the vehicle body 1 is defined as the rear, and the direction away from the vehicle body 1 is defined as the front. In front of the drive wheel 4, on the leg 21, an auxiliary support wheel 5 is provided. The auxiliary support wheel 5 can be a universal wheel, and its effect is auxiliary support and auxiliary steering. Vehicles often need to load heavy goods at ordinary times, and the effect of the auxiliary support wheels 5 can improve the carrying stability of the vehicle.

As shown in Figure 2, the square dotted line frame is the size of the pallet. Generally speaking, the size of a specific cargo pallet is uniform because it involves machine specifications and storage parameters. According to the front end point of the size of the pallet and the outer end point of the vehicle body 1 or the vehicle body 2, a circle can be determined, namely the dotted circle in FIG. 2 . This circle is the minimum turning trajectory of the vehicle, that is, the trajectory formed when the vehicle turns in situ. When designing a vehicle, on the one hand, the body 1 and the bottom 2 will be made as compact as possible in size, and on the other hand, in terms of shape, there will be no convex points outside the circle. After the minimum circular trajectory of rotation is determined, the specific installation positions of the two driving wheels 4 must be corrected so that the line connecting the wheel centers of the two driving wheels 4 passes through the center of the circle.

At the same time, it should be noted that if the distance between the two driving wheels 4 is too large, the circle will be formed, which will increase the interference area of the vehicle when turning in situ. If the distance is too small, the center of gravity of the vehicle will Unstability, preferably, is generally set within this circle and outside the projection of the pallet.

As shown in FIG. 5 , the connection support 43 is used as the main body for fixing and connecting, and is connected to parts of the vehicle body, specifically, connected to the leg 21 . The motor 41 and the deceleration device 42 are used as a driving structure to drive the rotating shaft 45 connected with the deceleration device 42 to rotate, thereby driving the wheel body 44 to rotate. The rotating shaft 45 realizes relative rotation with the connecting support 43 through components such as supporting bearings. In addition, the rotating shaft 45 may be connected to the wheel body 44 through a hub fixing member 46 , such as a hub bolt. Such a design makes the connecting support 43 as a supporting and intermediary component, conveniently connected to the vehicle leg 21 . And according to the actual situation, the wheel body 44 of different sizes can be selected, and the motor 41 and the deceleration device 42 of different specifications and different speeds can also be selected. The assembly is more flexible and suitable for models of different specifications. On the other hand, in terms of location arrangement, the wheel body 44 is located on one side of the connecting support 43 , and the motor 41 and the reduction gear 42 are located on the other side of the connecting support 43 . The motor 41 and the reduction gear 42 are placed laterally. Such position arrangement further reduces the height of the driving wheel assembly.

As shown in FIG. 3 , what FIG. 3 shows is a schematic diagram of Embodiment 2. Embodiment 1 is a kind of transport vehicle, and embodiment 2 is a kind of stacker. Compared with Embodiment 1, the stacker shown in FIG. 3 requires the fork 6 to have a higher ground clearance. On the other hand, in this embodiment, the forks 6 are mounted on the movable mast 7 . The movable mast 7 can be pushed forward along the legs 21. Specifically, a push-out device 8 is connected between the vehicle body 1 and the movable mast 7. The push-out device 8 can be a hydraulic device, and in the legs 21, a The track used for guiding makes the mobile door frame 7 can be released smoothly, and the elevating device 9 controls the lifting of the pallet fork 6 on the mobile door frame 7 . Specifically, the lifting device 9 may be a drive transmission combination of a motor and a gear. This kind of stacker can be turned directly, and the steering method is the same as that of embodiment 1, but in order to obtain a better turning radius and interference track, the movable mast 7 can be retracted so that the movable mast 7 is closer to the vehicle body 1, and then Make a turn.

As shown in Figure 4, it is Embodiment 3. The difference from Embodiment 2 is that in this embodiment, the auxiliary support wheel 5 is eliminated.

Claims (15)

1. a kind of tight turn radius industrial vehicle, includes vehicle body（1）And pallet fork（6）, it is characterised in that：Also include and the vehicle body （1）The underbody of connection（2）, the underbody（2）Include connecting portion（22）With positioned at the connecting portion（22）The car leg of both sides（21）, The car leg（21）On driving wheel is installed（4）, the connecting portion（22）On deflecting roller is installed（3）.

2. a kind of tight turn radius industrial vehicle according to claim 1, it is characterised in that：The driving wheel（4）Comprising There is wheel body（44）And the wheel body（44）The rotary shaft of connection（45）, the rotary shaft（45）Installed in connects bearing（43）On, The rotary shaft（45）It is connected to deceleration device（42）On, the deceleration device（42）By motor（41）Driving, the connection branch Seat（43）Installed in the car leg（21）On.

3. a kind of tight turn radius industrial vehicle according to claim 2, it is characterised in that：The wheel body（44）Positioned at institute State connects bearing（43）Side, the motor（41）With the deceleration device（42）Positioned at the connects bearing（43）It is another Side.

4. a kind of tight turn radius industrial vehicle according to claim 3, it is characterised in that：The motor（41）With it is described Deceleration device（42）It is laterally disposed.

5. a kind of tight turn radius industrial vehicle according to claim 1, it is characterised in that：The pallet fork（6）Lift Disk, according to the vehicle body（1）, the underbody（2）Shape and the size of the pallet can calculate the minimum rotation of this kind of vehicle Turn circular trace, two driving wheels（4）Core wheel line pass through the center of circle of the minimum rotation circular trace.

6. a kind of tight turn radius industrial vehicle according to claim 1 or 5, it is characterised in that：The connecting portion（22） On offer C-channel（221）, the deflecting roller（3）Positioned at the C-channel（221）It is interior.

7. a kind of tight turn radius industrial vehicle according to claim 1 or 5, it is characterised in that：Also include for surveying The fixed deflecting roller（3）The angle induction device of current steering angle, the driving wheel（4）According to the angle induction device Numerical value adjusts operating state.

8. a kind of tight turn radius industrial vehicle according to claim 7, it is characterised in that：The deflecting roller（3）Connection There is single drive device.

9. a kind of tight turn radius industrial vehicle according to claim 1 or 5, it is characterised in that：Two car legs （21）Positioned at the pallet fork（6）Outside, the car leg（21）Bearing of trend and the pallet fork（6）Bearing of trend it is parallel.

10. a kind of tight turn radius industrial vehicle according to claim 1 or 5, it is characterised in that：In the car leg（21） On, positioned at the driving wheel（4）Away from the deflecting roller（3）Side be provided with auxiliary support wheel（5）.

11. a kind of tight turn radius industrial vehicle according to claim 10, it is characterised in that：The auxiliary support wheel （5）For universal wheel.

12. a kind of tight turn radius industrial vehicle according to claim 1 or 5, it is characterised in that：The pallet fork（6）Even It is connected on moving door frame（7）On, the moving door frame（7）By ejecting device（8）Can relatively described vehicle body（1）It is mobile.

13. a kind of tight turn radius industrial vehicle according to claim 12, it is characterised in that：The moving door frame（7） Launch direction and the car leg（21）Bearing of trend it is parallel, the ejecting device（8）One end is connected to described release and moved Door frame（7）On, the other end is connected to the vehicle body（1）On.

14. a kind of tight turn radius industrial vehicle according to claim 13, it is characterised in that：The car leg（21）On set Have for the moving door frame（7）The track of slip.

15. a kind of tight turn radius industrial vehicle according to claim 13, it is characterised in that：The moving door frame（7） On be additionally provided with for drawing the pallet fork（6）The lowering or hoisting gear of lifting（9）.