Buffering and damping type crawler chassis
By introducing a swing shaft and swing plate structure into the track chassis, the buffering and shock absorption of the track chassis in complex terrain is achieved, solving the problem of damage caused by large vibration of the track chassis, and achieving the effect of uniform stress and simple structure.
Patent Information
- Application Number
- CN202422207933.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-10
AI Technical Summary
The track chassis vibrates greatly when traveling in complex and harsh terrain, which can easily cause damage to the track chassis and vehicles.
A buffering and shock-absorbing track chassis is designed, using a swing shaft and swing plate structure, so that the support wheel can automatically adjust the angle according to the terrain, and connect it to reduce the vibration between the track chassis and the ground.
Effectively reduce vibration of the track chassis on complex road surfaces, prevent damage to the track chassis and vehicles, with a simple structure and uniform force.
Smart Images
Figure CN223059126U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of crawler chassis, and specifically refers to a buffer shock-absorbing crawler chassis. Background Art
[0002] Wheeled vehicles are suitable for ordinary ground with relatively flat terrain and hard surface. Crawler vehicles are suitable for soft ground surface and bad terrain. Crawler chassis are mostly used in crawler vehicles, such as crawler robots, crawler agricultural machinery transport vehicles, etc. As the traveling mechanism of crawler machinery, it is mainly used to solve the problem of poor passability of vehicles in complex and bad terrains such as mudflats, swamps, deserts, fields, ice and snow, gravel, etc. Since the application environment of the crawler chassis is mostly these complex and bad terrains, during the traveling process of the crawler chassis, it often bumps due to the complex terrain, making it impossible for the crawler chassis to fit well with the ground, resulting in a large vibration amplitude of the crawler chassis, which is likely to cause damage to the crawler chassis and even the crawler vehicle. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a buffer shock-absorbing crawler chassis to solve the technical problem that the crawler chassis vibrates greatly during traveling in the prior art, causing damage to the crawler chassis and even the crawler vehicle.
[0004] To solve the above technical problem, the utility model provides a buffer shock-absorbing crawler chassis, which includes a frame and two crawlers. A plurality of swing shafts are rotatably connected to both the left and right sides of the frame, and the rotation axis of the swing shafts is arranged along the left-right direction. The plurality of swing shafts are distributed along the front-back direction. At both axial ends of each swing shaft, swing plates are connected. At least two idler wheels distributed front and back are connected between the two swing plates, and the idler wheels are eccentrically arranged with respect to the rotation axis of the swing shaft. The two crawlers are respectively arranged circumferentially outside the plurality of idler wheels on the left and right sides.
[0005] After adopting the above structure, the buffer shock-absorbing crawler chassis of the utility model has the following advantages: When the crawler chassis travels on an uneven ground surface, the swinging idler wheels and swing plates can swing to different angles according to the terrain. For example, when the crawler chassis travels to a protruding ground surface, the swing plates and swing shafts deflect, and the front idler wheels are first lifted. When the rear idler wheels pass over this protruding ground surface, the front lifted idler wheels fall, and the rear idler wheels are lifted. The swing plates and swing shafts automatically change angles according to the actual condition of the ground surface, without the need for an additional driving device to control, making the crawler chassis fit the ground better, thereby reducing the vibration of the crawler chassis when passing through complex road surfaces, playing a role in buffering and shock absorption, preventing damage to the crawler chassis and the vehicle, and each idler wheel is connected through an independent swing shaft and swing plate, making the swing shaft smaller in volume, shorter in length, and evenly stressed.
[0006] As an improvement, a plurality of sleeves are connected to the bottom ends of both the left and right sides of the frame, and the axes of the sleeves are arranged in the left-right direction. The plurality of sleeves are distributed in the front-back direction, and a swing shaft is rotatably connected in each sleeve; adopting this structure has the advantages of simple structure and convenient connection.
[0007] As an improvement, reinforcing plates are connected between the front and rear sides of each sleeve and the bottom end of the frame. A first limit post and a second limit post are connected between the two swing plates and are distributed in sequence along the front-back direction. The reinforcing plate on the front side is located on the moving path of the first limit post when the swing plate swings forward, and the reinforcing plate on the rear side is located on the moving path of the second limit post when the swing plate swings backward; adopting this structure, the swing amplitudes of the swing plate and the idler wheel are restricted by the two reinforcing plates, the first limit post, and the second limit post, preventing the swing amplitudes of the swing plate and the idler wheel from being too large and hitting the frame and causing damage.
[0008] As an improvement, two idler wheels are connected between every two swing plates, and the two idler wheels are symmetrically distributed on the front and rear sides of the vertical plane where the rotation axis of the swing shaft is located; adopting this structure, the two symmetrically arranged idler wheels can further improve the buffering and shock absorption effect.
[0009] As an improvement, the connection position of the idler wheel and the swing plate is lower than the rotation center of the swing shaft.
[0010] As an improvement, the inner end surface of each crawler belt includes a tread surface and a first inclined surface. The tread surface is located in the middle of the inner end surface of the crawler belt, and the first inclined surfaces are arranged on the left and right sides of the tread surface. The first inclined surfaces are inclined from the inside to the outside away from the idler wheel. On both the left and right sides of the frame, there are two rows of carrier wheels arranged in the front-back direction. The two rows of carrier wheels are respectively in contact with the two upper first inclined surfaces, and the outer peripheral wall of each carrier wheel is a second inclined surface matching the first inclined surface; if the carrier wheels are arranged on the tread surface, it will cause the crawler belt at the position of the carrier wheels to bulge upward, which may interfere with other structures of the vehicle. By arranging the carrier wheels on each side into two rows and respectively arranging the two rows of carrier wheels on the two first inclined surfaces, interference can be avoided, the crawler belt can be kept flat, and the overall height can be reduced.
[0011] As an improvement, a protrusion is arranged on the tread surface in the circumferential direction, and a first clamping groove is arranged in the middle of each idler wheel in the circumferential direction. The protrusion is clamped in the first clamping groove; adopting this structure, the protrusion and the first clamping groove play a limiting role on the idler wheel.
[0012] As an improvement, guide wheels are connected to both the left and right sides of the frame. Two protrusions are arranged on the tread surface in the circumferential direction, and a second clamping groove is formed between the two protrusions. The guide wheel is clamped in the second clamping groove; adopting this structure, the second clamping groove plays a limiting role on the guide wheel. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.
[0014] Figure 2 is Figure 1 A partial enlarged view of part A in
[0015] Figure 3 The side view of the present utility model.
[0016] Figure 4 The three-dimensional structure schematic diagram of the crawler belt in the present utility model.
[0017] Figure 5 The structure schematic diagram of the carrier wheel in the present utility model.
[0018] Reference numerals: 1, frame; 2, crawler belt; 3, swing shaft; 4, swing plate; 5, carrier wheel; 6, sleeve; 7, rib plate; 8, first limit post; 9, second limit post; 10, tread surface; 11, first inclined surface; 12, carrier wheel; 13, second inclined surface; 14, protruding part; 15, first card slot; 16, guide wheel; 17, second card slot. Specific embodiments
[0019] The following will make a detailed description of a buffer and shock-absorbing crawler chassis of the present utility model in conjunction with the accompanying drawings.
[0020] As Figures 1 to 5 shown, a buffer and shock-absorbing crawler chassis includes a frame 1 and two crawler belts 2. A plurality of swing shafts 3 are rotatably connected to both the left and right sides of the frame 1, and the rotation axes of the swing shafts 3 are arranged in the left-right direction. A plurality of swing shafts 3 are distributed in the front-back direction. It should be noted that the left-right direction in the present utility model is the width direction of the frame 1, and the front-back direction is the front-back direction of the frame 1. Specifically, as Figure 2 shown, a plurality of sleeves 6 are connected to the bottom ends of both the left and right sides of the frame 1, and the axes of the sleeves 6 are arranged in the left-right direction. A plurality of sleeves 6 are distributed in the front-back direction. Each sleeve 6 rotatably connects a swing shaft 3. In this embodiment, four sleeves 6 are connected to the bottom ends of both the left and right sides of the frame 1, that is, four swing shafts 3 each. The sleeves 6, swing shafts 3 and other structures on both the left and right sides are symmetrically arranged as a whole. Therefore, the following description will be made from the structure of one side.
[0021] As Figure 2 shown, swing plates 4 are connected to both axial ends (i.e., the left and right ends) of each swing shaft 3. At least two carrier wheels 5 distributed in the front-back direction are connected between the two swing plates 4, and the carrier wheels 5 are eccentrically arranged with respect to the rotation axis of the swing shaft 3. Specifically, two carrier wheels 5 are connected between each two swing plates 4, and the two carrier wheels 5 are symmetrically distributed on the front and back sides of the vertical plane where the rotation axis of the swing shaft 3 is located. The connection between the carrier wheel 5 and the swing plate 4 is lower than the rotation axis of the swing shaft 3. The two crawler belts 2 are respectively arranged circumferentially outside a plurality of carrier wheels 5 on both the left and right sides.
[0022] As Figure 2 and Figure 3 shown, gusset plates 7 are connected between the front and rear sides of each sleeve 6 and the bottom end of the vehicle frame 1. A first limiting post 8 and a second limiting post 9 are connected between the two swing plates 4 and are distributed in sequence from front to back. The first limiting post 8 and the second limiting post 9 are respectively located below the two gusset plates 7. The gusset plate 7 on the front side is located on the moving path of the first limiting post 8 when the swing plate 4 swings forward, and the gusset plate 7 on the rear side is located on the moving path of the second limiting post 9 when the swing plate 4 swings backward.
[0023] As Figure 1 、 Figure 4 and Figure 5 shown, the inner end surface of each crawler 2 includes a tread surface 10 and a first inclined surface 11. The tread surface 10 is a flat surface and is located in the middle of the inner end surface of the crawler 2. The first inclined surfaces 11 are arranged on the left and right sides of the tread surface 10 and are inclined from the inside to the outside away from the idler wheel 5. For example, for the right crawler 2, the first inclined surface 11 on the right side of the tread surface 10 is inclined from left to right away from the idler wheel 5 (the lower part is inclined downward and the upper part is inclined upward). On both the left and right sides of the vehicle frame 1, there are two rows of carrier wheels 12 arranged in the front-rear direction. The two rows of carrier wheels 12 are respectively in contact with the two upper first inclined surfaces 11, and the outer peripheral wall of each carrier wheel 12 is a second inclined surface 13 that matches the first inclined surface 11. For example, in this embodiment, the left and right sides of the upper end of the vehicle frame 1 are connected with two rows of carrier wheels 12. The two carrier wheels 12 in each row of carrier wheels 12 are distributed in the front-rear direction. The left row of carrier wheels 12 is in contact with the left first inclined surface 11 at the upper end, and the right row of carrier wheels 12 is in contact with the right first inclined surface 11 at the upper end. The same applies to the left side of the vehicle frame 1.
[0024] As Figure 1 shown, the tread surface 10 is provided with protrusions 14 along the circumferential direction. A first card slot 15 is provided along the circumferential direction in the middle of each idler wheel 5, and the protrusions 14 are clamped in the first card slot 15; Guide wheels 16 are connected to both the left and right sides of the vehicle frame 1. The guide wheels 16 are located on the front side. The tread surface 10 is provided with two protrusions 14 along the circumferential direction, and a second card slot 17 is formed between the two protrusions 14. The guide wheels 16 are clamped in the second card slot 17.
[0025] When the crawler chassis travels on an uneven ground surface, the oscillating track rollers 5 and the oscillating plate 4 can swing to different angles according to the terrain. For example, when the crawler chassis travels to a protruding ground surface, the oscillating plate 4 and the oscillating shaft 3 deflect, and the front track rollers 5 are first lifted. When the rear track rollers 5 pass over this protruding ground surface, the front lifted track rollers 5 fall, and the rear track rollers 5 are lifted. The oscillating plate 4 and the oscillating shaft 3 automatically change the angle according to the actual condition of the ground, without the need for additional driving device control, making the crawler chassis fit the ground more closely, thereby reducing the vibration of the crawler chassis when passing through complex road surfaces, playing a role in buffering and shock absorption, preventing damage to the crawler chassis and the vehicle, and each track roller 5 is connected through an independent oscillating shaft 3 and an oscillating plate 4, making the oscillating shaft 3 small in volume, short in length, and evenly stressed.
[0026] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above-described one embodiment. All other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present invention.
Claims
1. A buffer shock-absorbing crawler chassis, characterized in that, It includes a frame (1) and two crawler belts (2). On both the left and right sides of the frame (1), a number of swing shafts (3) are rotatably connected, and the rotation axis of the swing shaft (3) is arranged in the left-right direction. A number of the swing shafts (3) are distributed in the front-back direction. At both axial ends of each swing shaft (3), a swing plate (4) is connected. Between the two swing plates (4), at least two idler wheels (5) distributed in the front-back direction are connected, and the idler wheels (5) are eccentrically arranged with respect to the rotation center axis of the swing shaft (3). The two crawler belts (2) are respectively arranged circumferentially outside a number of the idler wheels (5) on the left and right sides.
2. The buffer shock-absorbing crawler chassis according to claim 1, characterized in that, At the bottom ends of both the left and right sides of the frame (1), a number of sleeves (6) are connected, and the axis of the sleeve (6) is arranged in the left-right direction. A number of the sleeves (6) are distributed in the front-back direction. Inside each sleeve (6), a swing shaft (3) is rotatably connected.
3. The buffer shock-absorbing crawler chassis according to claim 2, wherein Between the front and rear sides of each sleeve (6) and the bottom end of the frame (1), a rib plate (7) is connected. Between the two swing plates (4), a first limit post (8) and a second limit post (9) are connected in sequence in the front-back direction. The rib plate (7) on the front side is located on the moving path of the first limit post (8) when the swing plate (4) swings forward, and the rib plate (7) on the rear side is located on the moving path of the second limit post (9) when the swing plate (4) swings backward.
4. The buffer shock-absorbing crawler chassis according to claim 1, wherein, Between every two swing plates (4), two idler wheels (5) are connected, and the two idler wheels (5) are symmetrically distributed on the front and rear sides of the vertical plane where the rotation axis of the swing shaft (3) is located.
5. The buffer shock-absorbing crawler chassis according to claim 1, characterized in that, The connection part of the idler wheel (5) and the swing plate (4) is lower than the rotation center axis of the swing shaft (3).
6. The buffer shock-absorbing crawler chassis according to claim 1, characterized in that, The inner end surface of each crawler belt (2) includes a tread surface (10) and a first inclined surface (11). The tread surface (10) is located in the middle of the inner end surface of the crawler belt (2). The first inclined surface (11) is arranged on the left and right sides of the tread surface (10). The first inclined surface (11) is inclined from the inside to the outside away from the idler wheel (5). On both the left and right sides of the frame (1), two rows of carrier wheels (12) arranged in the front-back direction are provided. The two rows of carrier wheels (12) are respectively in contact with the two upper first inclined surfaces (11), and the outer peripheral wall of each carrier wheel (12) is a second inclined surface (13) matching the first inclined surface (11).
7. The buffer and shock-absorbing crawler chassis according to claim 6, characterized in that, The tread surface (10) is provided with a protrusion (14) along the circumference. In the middle of each idler wheel (5), a first card slot (15) is provided along the circumference. The protrusion (14) is clamped in the first card slot (15).
8. The buffer shock-absorbing crawler chassis according to claim 7, wherein On both the left and right sides of the frame (1), guide wheels (16) are connected. The tread surface (10) is provided with two protrusions (14) along the circumference. A second card slot (17) is formed between the two protrusions (14). The guide wheel (16) is clamped in the second card slot (17).