Novel walking base

Abstract

The utility model relates to the technical field of walking mechanisms, and provides a novel walking base. Comprising a rack, a driving wheel rotatably arranged on the rack, a driving device for driving the driving wheel to rotate, a bracket slidably arranged on the rack, a guide wheel rotatably arranged on the bracket, a crawler belt wrapping the driving wheel and the guide wheel, and a tensioning assembly arranged between the rack and the bracket, the tensioning assembly comprises a blocking piece arranged on the machine frame and a buffering device connected to the support, the other end of the buffering device can abut against the blocking piece, and the buffering device can push the support to enable the guide wheel to be kept tensioned. According to the tensioning assembly, good limiting and supporting effects on the guide wheel are achieved, vibration and shaking in the walking process are reduced, the support can be pushed after the buffering device is stressed, the guide wheel is attached to the crawler belt again, the situation that the crawler belt is disengaged and deviated is avoided, and the technical problem that the tensioning effect of a tensioning assembly of an existing crawler belt walking mechanism is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of walking mechanisms, in particular to a novel walking base. Background Art

[0002] In order to overcome the harsh open-air working environment and changeable road conditions, especially uneven roads, gravel ground and muddy working sites, existing excavators, harvesters, pile drivers, etc. mostly use crawler traveling mechanisms. Crawler traveling mechanisms are usually provided with crawler tensioning assemblies, which are required to adapt to complex and changeable road conditions. The performance of crawler traveling mechanisms has a great influence on the driving performance of crawler-type engineering machinery. In order to ensure the safe and reliable travel of engineering machinery, the existing crawler traveling mechanisms are usually equipped with crawler guide teeth and guide plates, but the tensioning effect is poor. Under impact, it is easy to cause the tensioning state of the guide wheel to fail, which in turn causes the crawler track to derail. Utility Model Content

[0003] Therefore, in view of the above problems, the present invention proposes a novel walking base, which solves the technical problem that the tensioning effect of the tensioning assembly of the existing crawler walking mechanism is poor.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A new walking base includes a frame, a driving wheel rotatably provided on the frame, a driving device for driving the driving wheel to rotate, a bracket slidably provided on the frame, a guide wheel rotatably provided on the bracket, a crawler track covering the driving wheel and the guide wheel, and a tensioning assembly provided between the frame and the bracket. The tensioning assembly includes a blocking member provided on the frame and a buffer device connected to the bracket. The other end of the buffer device can abut against the blocking member. The buffer device can push the bracket to keep the guide wheel tensioned.

[0006] Further:

[0007] The frame is provided with a slide groove, and the bracket can move horizontally along the slide groove.

[0008] The buffer device includes a connecting seat connected to the bracket and a telescopic device connected to the connecting seat, and the other end of the telescopic device abuts against the blocking member.

[0009] The buffer device also includes a spring arranged around the surface of the telescopic device. A through hole is provided on the connecting seat. One end of the telescopic device can extend out of the through hole. The telescopic device can move along the through hole. One end of the spring rests on the telescopic device, and the other end of the spring rests on the connecting seat.

[0010] The telescopic device is an oil cylinder or a gas cylinder.

[0011] One end of the telescopic device is threadedly connected to a locking piece, the diameter of the locking piece is larger than the diameter of the through hole, and the locking piece is against the through hole.

[0012] The buffer device includes a sliding rod, the bracket is connected to a connecting seat, the connecting seat is provided with a through hole, the sliding rod can slide in the through hole, the sliding rod is sleeved with a spring, one end of the spring rests on the sliding rod, and the other end of the spring rests on the bracket.

[0013] The frame is provided with a limit plate, the limit plate is provided with a groove, the top of the guide wheel extends out of the groove, and the guide wheel can abut against the end of the groove when loose.

[0014] At least one supporting wheel is rotatably provided on the frame, and the supporting wheel can abut against the crawler track.

[0015] A chain is provided on the inner side of the crawler belt, and the driving wheel is in a gear structure, and the gear on the driving wheel is engaged with the chain.

[0016] By adopting the above technical solution, the beneficial effects of the utility model are:

[0017] The utility model ensures the stable position of the guide wheel by the blocking member and the buffer device. The buffer device abuts against the blocking member, plays a better limiting and supporting role for the guide wheel, reduces vibration and shaking during walking, and when the guide wheel becomes loose or shaking, the bracket squeezes the buffer device, and the buffer device pushes the bracket after being stressed, so that the guide wheel fits with the crawler track again, preventing the crawler track from wandering left and right, making the crawler track evenly stressed, improving stability, and avoiding the crawler track from detaching and deviating; further, the bracket slides horizontally along the slide groove, limiting the bracket from rotating up and down and colliding with the crawler track, and also preventing the guide wheel from shaking up and down, ensuring the effective tensioning of the crawler track, and preventing the crawler track from derailing; further, through the telescopic The device and the spring can play a dual buffering role, the structure is stable, and it has a good shock absorption effect. It has a strong supporting ability for the guide wheel, which limits the degree to which the guide wheel can loosen. After being squeezed, the spring will produce a reverse force, which can push the bracket to reset the guide wheel, and maintain the fit with the track to the greatest extent during walking; further, the sliding rod and the spring can also play a buffering and tensioning role, and the cost is low; further, the guide wheel can only move within the groove range of the limit plate, and it can no longer move when it abuts the end of the groove, thereby limiting the guide wheel from continuing to loosen; further, the support wheel can enhance the carrying capacity and adjust the pressure of the guide wheel, which is conducive to stability during walking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0020] Figure 3 It is a structural diagram of the tensioning assembly and the guide wheel;

[0021] Figure 4 is a cross-sectional view of the buffer device;

[0022] Figure 5 It is a structural diagram of the connecting seat;

[0023] Figure 6 It is a structural diagram of the limit plate and the guide wheel;

[0024] Figure 7 It is a structural diagram of the driving wheel;

[0025] Figure 8 It is a structural diagram of the rack.

[0026] In the figure: 1. frame; 2. driving wheel; 3. bracket; 4. guide wheel; 5. track; 6. tensioning assembly; 11. slide; 12. support wheel; 51. chain; 61. blocking member; 62. telescopic device; 63. spring; 64. locking member; 65. connecting seat; 66. perforation; 13. limit plate; 14. groove. DETAILED DESCRIPTION

[0027] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0028] refer to Figures 1 to 8 The present invention provides a novel walking base, comprising a frame 1, a driving wheel 2 rotatably mounted on the frame 1, a driving device for driving the driving wheel 2 to rotate, a bracket 3 slidably mounted on the frame 1, a guide wheel 4 rotatably mounted on the bracket 3, a crawler 5 covering the driving wheel 2 and the guide wheel 4, and a tensioning assembly 6 disposed between the frame 1 and the bracket 3. The frame 1 is provided with a slide 11, along which the bracket 3 can move horizontally. The frame 1 is rotatably provided with a plurality of support wheels 12, which can abut against the crawler 5. A chain 51 is provided at the bottom of the crawler 5. The driving wheel 2 is a gear structure, and the gear on the driving wheel 2 is engaged with the chain 51.

[0029] The tensioning assembly 6 includes a stopper 61 mounted on the frame 1 and a buffer device connected to the bracket 3. The buffer device's other end can abut against the stopper 61, pushing the bracket 3 to maintain tension on the guide wheel 4. The buffer device includes a connecting seat 65 connected to the bracket 3, a telescopic device 62 connected to the connecting seat 65, and a spring 63 surrounding the surface of the telescopic device 62. The telescopic device 62's other end abuts against the stopper 61. The connecting seat 65 is provided with a through-hole 66. One end of the telescopic device 62 can extend out of the through-hole 66, allowing the telescopic device 62 to move along the through-hole 66. One end of the spring 63 abuts against the telescopic device 62, while the other end of the spring 63 abuts against the connecting seat 65. One end of the telescopic device 62 is threadedly connected to a locking member 64. The locking member 64 has a diameter larger than that of the through-hole 66, and the locking member 64 abuts against the through-hole 66. The frame 1 is provided with a limit plate 13 , and the limit plate 13 is provided with a groove 14 . The groove 14 extends from the top of the guide wheel 4 , and the guide wheel 4 can rest against the end of the groove 14 when loose.

[0030] The driving device can be a driving motor or other rotating driving device, which can be configured according to specific circumstances.

[0031] The above-mentioned sliding groove 11 may also not be provided, and may be provided according to specific circumstances.

[0032] The above-mentioned support wheel 12 can be one, two, three or even more, and can also be set on the top of the crawler 5, or the support wheel 12 can be not set, which can be set according to the specific situation.

[0033] The above-mentioned buffer device may also not adopt the spring 63 or other buffer structures, and the specific configuration may be based on the specific situation.

[0034] The telescopic device 62 can be a pneumatic cylinder, an oil cylinder or other telescopic devices. In this embodiment, an oil cylinder is used. The telescopic device 62 can also be replaced by a sliding rod, that is, a non-retractable structure is used, and the guide wheel is kept taut only by a spring 63, which is set according to the specific situation.

[0035] The locking member 64 may be a nut, which may be configured according to specific circumstances.

[0036] The above-mentioned limiting plate 13 may also not be provided, and may be provided according to specific circumstances.

[0037] The working mode of the utility model is:

[0038] When in use, the driving device drives the driving wheel 2 to rotate, and the rotation of the driving wheel 2 drives the crawler 5 to move, and the guide wheel 4 rotates accordingly. One end of the telescopic device 62 abuts against the blocking member 61. When the guide wheel 4 becomes loose, it drives the bracket 3 to slide horizontally along the slide groove 11, so that the bracket 3 compresses the spring 63. The spring 63 and the telescopic device 62 play a double buffering role, supporting and limiting the guide wheel 4. At the same time, the spring 63 is squeezed and contracted, and one end of the telescopic device 62 extends out of the through hole 31. The spring 63 is compressed to generate a reverse force, which generates a thrust on the bracket 3, enabling the guide wheel 4 to fit against the crawler 5 to prevent the crawler 5 from detaching.

[0039] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these changes are within the scope of protection of the present invention.

Claims

1. A new type of walking base, characterized by: The invention comprises a frame, a driving wheel rotatably arranged on the frame, a driving device for driving the driving wheel to rotate, a bracket slidably arranged on the frame, a guide wheel rotatably arranged on the bracket, a crawler track covering the driving wheel and the guide wheel, and a tensioning assembly arranged between the frame and the bracket, wherein the tensioning assembly comprises a blocking member arranged on the frame and a buffer device connected to the bracket, wherein the other end of the buffer device can abut against the blocking member, and the buffer device can push the bracket to keep the guide wheel tensioned.

2. A novel walking base according to claim 1, characterized in that: The frame is provided with a slide groove, and the bracket can move horizontally along the slide groove.

3. The novel walking base according to claim 1, characterized in that: The buffer device includes a connecting seat connected to the bracket and a telescopic device connected to the connecting seat, and the other end of the telescopic device abuts against the blocking member.

4. A novel walking base according to claim 3, characterized in that: The buffer device also includes a spring arranged around the surface of the telescopic device. A through hole is provided on the connecting seat. One end of the telescopic device can extend out of the through hole. The telescopic device can move along the through hole. One end of the spring rests on the telescopic device, and the other end of the spring rests on the connecting seat.

5. A novel walking base according to claim 3 or 4, characterized in that: The telescopic device is an oil cylinder or a gas cylinder.

6. The novel walking base according to claim 4, characterized in that: One end of the telescopic device is threadedly connected to a locking piece, the diameter of the locking piece is larger than the diameter of the through hole, and the locking piece is against the through hole.

7. The novel walking base according to claim 1, characterized in that: The buffer device includes a sliding rod, the bracket is connected to a connecting seat, the connecting seat is provided with a through hole, the sliding rod can slide in the through hole, the sliding rod is sleeved with a spring, one end of the spring rests on the sliding rod, and the other end of the spring rests on the bracket.

8. The novel walking base according to claim 1, characterized in that: The frame is provided with a limit plate, the limit plate is provided with a groove, the top of the guide wheel extends out of the groove, and the guide wheel can abut against the end of the groove when loose.

9. The novel walking base according to claim 1, characterized in that: At least one supporting wheel is rotatably provided on the frame, and the supporting wheel can abut against the crawler track.

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