Crawler and crawler suspension supporting structure thereof

Abstract

The crawler suspension supporting structure comprises a crawler body, a machine frame, a supporting frame, moving wheels and adjusting wheels, a cavity is formed in the machine frame, a vertical screw rod is arranged in the cavity through a driving motor, the adjusting wheels are connected with the vertical screw rod through a lifting mechanism, a transmission shaft is arranged in the cavity through an inner supporting mechanism, and the driving motor is connected with the vertical screw rod through a lifting mechanism. The transmission shaft is connected with the vertical screw through a driving mechanism, the supporting frame is provided with a double-thread screw penetrating through the cavity through an outer supporting mechanism, the double-thread screw is connected with the transmission shaft through a transmission mechanism, and the moving wheels are connected with the double-thread screw through a transverse moving mechanism. The moving wheel can move transversely through the transverse moving mechanism when the double-thread screw rotates, and can adapt to different driving road conditions and crawler tension requirements. In a complex terrain, the distance between the moving wheels can be automatically adjusted, so that the track is stressed more uniformly, the running stability of the whole tracked vehicle is further improved, and the risk of rollover or out-of-control is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of crawler vehicles, in particular to a crawler vehicle and a crawler suspension support structure thereof. Background Art

[0002] A tracked vehicle is a vehicle that relies on tracks to achieve its purpose of travel. The track is a ring-shaped structure that surrounds the outer circumference of the wheel. It can be made of metal chains or rubber belts and is made up of a large number of small track plates connected together. When the tracked vehicle is in operation, the engine supplies power to the driving wheel, causing it to rotate, thereby driving the track. The friction between the track and the ground allows the vehicle to move forward or backward. Due to the large contact area between the track and the ground, the pressure exerted by the vehicle on the ground is relatively small, which allows the tracked vehicle to travel freely on soft ground. In the military, tanks and armored vehicles are typical representatives of tracked vehicles; in the civilian field, tractors, snowmobiles, etc. also widely use track structures.

[0003] The track suspension support structure of conventional tracked vehicles is primarily designed based on a fixed wheel arrangement. The wheels are fixed to specific locations on the chassis during the vehicle design and manufacturing process, making them inadvisable to adjust. This limitation makes them difficult to adapt to complex and changing terrain. In light of this, a novel tracked vehicle and its track suspension support structure are proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a crawler vehicle and a crawler suspension support structure thereof.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A crawler vehicle and its crawler suspension support structure, including a vehicle body, a frame, a support frame, a movable wheel and an adjusting wheel, a cavity is provided inside the frame, a vertical screw is provided in the cavity through a drive motor, the adjusting wheel is connected to the vertical screw through a lifting mechanism, a transmission shaft is provided in the cavity through an internal support mechanism, the transmission shaft is connected to the vertical screw through an active mechanism, a double-headed screw penetrating the cavity is provided on the support frame through an external support mechanism, the double-headed screw is connected to the transmission shaft through a transmission mechanism, and the movable wheel is connected to the double-headed screw through a transverse mechanism.

[0007] Preferably, the lifting mechanism comprises a lifting frame threadedly mounted on a vertical screw rod, the lifting frame being U-shaped and rotatably connected to the adjusting wheel.

[0008] Preferably, the support mechanism comprises an inner support plate installed in the cavity, and the transmission shaft is rotatably mounted on the inner support plate.

[0009] Preferably, the active mechanism includes active gears mounted on the vertical screw and the transmission shaft, and the corresponding active gears are vertically meshed with each other.

[0010] Preferably, the outer support mechanism comprises an outer support plate mounted on a support frame, and the double-headed screw is rotatably mounted on the outer support plate.

[0011] Preferably, the transmission mechanism includes transmission gears mounted on the transmission shaft and the double-headed screw, and the corresponding transmission gears are vertically meshed with each other.

[0012] Preferably, the transverse movement mechanism includes a transverse movement frame threadedly mounted on a double-headed screw, and the transverse movement frame is designed in a U-shaped shape and is rotatably connected to the moving wheel.

[0013] Beneficial effects of the utility model:

[0014] 1. The vertical screw is driven by a motor to rotate, which causes the lifting frame to raise and lower the adjusting wheel. This adjustable design allows the position of the adjusting wheel to be precisely adjusted according to the actual conditions of the track, effectively compensating for changes in track tightness caused by terrain fluctuations or other factors, maintaining good contact between the track and the ground, thereby enhancing the stability of the crawler vehicle during travel and reducing shaking and deviation caused by loose or overtightened tracks.

[0015] 2. The moving wheels can move laterally as the double-headed screw rotates through a transverse mechanism, adapting to different road conditions and track tension requirements. In complex terrain, the moving wheel spacing can be automatically adjusted to ensure more even track force, further improving the driving stability of the entire crawler vehicle and reducing the risk of rollover or loss of control.

[0016] 3. The lifting and lowering of the regulating wheel and the adjustment of the spacing between the moving wheels work together to ensure that the belt is always in a taut state. This can prevent the track from excessive friction and slapping with the ground or other components due to loosening during operation, reduce track wear, extend the service life of the track, reduce the frequency of track replacement, and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a crawler vehicle and its crawler suspension support structure proposed by the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of some components;

[0019] Figure 3 Schematic diagram of the structure of the components in the cavity.

[0020] In the figure: 1 vehicle body, 2 frame, 3 support frame, 4 moving wheel, 5 belt body, 6 opening, 7 outer support plate, 8 double-headed screw, 9 transverse frame, 10 lifting frame, 11 adjusting wheel, 12 driving motor, 13 vertical screw, 14 inner support plate, 15 transmission shaft, 16 driving gear, 17 transmission gear. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-3

[0023] A crawler vehicle and its crawler suspension support structure mainly include a vehicle body 1, a frame 2, a support frame 3, a moving wheel 4 and an adjusting wheel 11. These components cooperate with each other to form a unique crawler vehicle suspension support system, wherein the layout and connection method of each component are as follows Figure 1 shown.

[0024] The frame 2 has a cavity within it, which serves as the core of the suspension support structure. Within this cavity, a drive motor 12 drives a vertical screw 13. This power transmission provides the power for the subsequent raising and lowering of the adjustment wheel 11.

[0025] The adjusting wheel 11 is connected to the vertical screw 13 via a lifting mechanism. Specifically, the lifting mechanism includes a lifting frame 10 threadedly mounted on the vertical screw 13. This lifting frame 10 has a unique U-shaped design. This U-shaped design not only ensures structural stability but also facilitates connection with the adjusting wheel 11. The U-shaped portion of the lifting frame 10 is rotatably connected to the adjusting wheel 11, allowing the adjusting wheel 11 to rotate flexibly relative to the lifting frame 10.

[0026] At the same time, the vertical portion of the lifting frame 10 slides through the inner wall of the cavity and extends to the outside of the support frame 3. This penetration and extension design allows the lifting frame 10 to have a self-limiting function. When the vertical screw 13 rotates, the lifting frame 10 does not rotate with it, but moves up and down along the axial direction of the vertical screw 13, thereby driving the adjusting wheel 11 to achieve the lifting action.

[0027] A transmission shaft 15 is also mounted within the cavity via an internal support mechanism. This internal support mechanism is crucial for the stable operation of the transmission shaft 15. It includes an internal support plate 14 mounted within the cavity, on which the transmission shaft 15 is rotatably mounted. This internal support plate 14 provides stable support for the transmission shaft 15, ensuring that it rotates stably within the cavity without shaking or deflection, thus providing reliable support for subsequent power transmission and other related operations.

[0028] The vertical screw 13 and the transmission shaft 15 are connected by an active mechanism. This active mechanism includes driving gears 16 mounted on the vertical screw 13 and the transmission shaft 15, with the corresponding driving gears 16 meshing vertically with each other. The driving gears 16 are bevel gears. This bevel gear design effectively changes the direction of power transmission, transmitting the rotational motion of the vertical screw 13 to the transmission shaft 15 through vertical meshing. This achieves power transmission between two axes in different directions, creating conditions for the coordinated operation of the entire system.

[0029] The support frame 3 is provided with a studded screw 8 extending through the cavity via an external support mechanism. The external support mechanism includes an external support plate 7 mounted on the support frame 3, and the studded screw 8 is rotatably mounted on the external support plate 7. The external support plate 7 effectively supports the studded screw 8, ensuring its stability during rotation.

[0030] It is worth noting that neither the double-headed screw 8 nor the vertical screw 13 has threads on their upper outer walls. This design detail ensures that the screws can smoothly cooperate with the corresponding supporting structure during installation, and the presence of threads will not interfere with the surrounding structure during rotation, ensuring the normal operation of the entire structure.

[0031] The double-ended screw 8 is connected to the drive shaft 15 via a transmission mechanism. This transmission mechanism includes transmission gears 17 mounted on the drive shaft 15 and the double-ended screw 8. The corresponding transmission gears 17 mesh vertically with each other. Like the driving gear 16, these transmission gears 17 are bevel gears. This vertically meshing bevel gear transmission ensures that the rotational power of the drive shaft 15 is accurately transmitted to the double-ended screw 8, achieving efficient power transfer between the various components.

[0032] The moving wheel 4 is connected to the double-headed screw 8 through a transverse mechanism. The transverse mechanism includes a transverse frame 9 threadedly mounted on the double-headed screw 8. The transverse frame 9 is designed in the shape of a U-shaped letter. This U-shaped design provides a suitable space and method for connection with the moving wheel 4 while ensuring structural strength. The transverse frame 9 is rotationally connected to the axle of the moving wheel 4, and the support frame 3 is provided with an opening 6 that cooperates with the axle of the moving wheel 4. This design ensures that the moving wheel 4 and the transverse frame 9 will not rotate with the double-headed screw 8. Instead, under the rotation of the double-headed screw 8, the transverse movement of the moving wheel 4 is realized through the threaded movement of the transverse frame 9 on the double-headed screw 8, thereby further adjusting the suspension support state of the crawler vehicle.

[0033] When the present invention is in use, the entire system functions through a series of sophisticated mechanical transmissions and connections. First, within the housing 2, a drive motor 12 rotates a vertical screw 13, causing the lifting frame 10 to move up and down along the axis of the vertical screw 13. This in turn drives the adjustment wheel 11, which is rotatably connected to the U-shaped portion of the lifting frame 10, to achieve vertical movement.

[0034] At the same time, the rotation of the vertical screw 13 is transmitted to the transmission shaft 15 through the active mechanism. The transmission shaft 15 is stably supported by the inner support plate 14 in the cavity and can rotate stably. Then, the power of the transmission shaft 15 is transmitted to the double-headed screw 8 through the transmission mechanism. Finally, the rotation of the double-headed screw 8 drives the transverse mechanism to move. The transverse frame 9 is threadedly matched with the double-headed screw 8. The transverse frame 9 in the shape of a Chinese character is rotatably connected to the axle of the moving wheel 4. The transverse frame 9 makes a threaded movement along the double-headed screw 8, driving the moving wheel 4 to move laterally. While the spacing of the moving wheels 4 can be adjusted, the adjusting wheel 11 can be raised and lowered. The two work together to ensure that the belt body 5 is in a taut state, thereby maintaining good driving performance and stability of the crawler vehicle.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A crawler vehicle and its crawler suspension support structure, comprising a vehicle body (1), a frame (2), a support frame (3), a moving wheel (4) and an adjusting wheel (11), characterized in that: A cavity is provided inside the frame (2), a vertical screw (13) is provided in the cavity via a driving motor (12), the regulating wheel (11) is connected to the vertical screw (13) via a lifting mechanism, a transmission shaft (15) is provided in the cavity via an internal support mechanism, the transmission shaft (15) is connected to the vertical screw (13) via an active mechanism, a double-headed screw (8) penetrating the cavity is provided on the support frame (3) via an external support mechanism, the double-headed screw (8) is connected to the transmission shaft (15) via a transmission mechanism, and the moving wheel (4) is connected to the double-headed screw (8) via a transverse movement mechanism.

2. A crawler vehicle and crawler suspension support structure thereof according to claim 1, characterized in that: The lifting mechanism comprises a lifting frame (10) threadedly mounted on a vertical screw rod (13); the lifting frame (10) is U-shaped and rotatably connected to an adjusting wheel (11).

3. A crawler vehicle and crawler suspension support structure thereof according to claim 2, characterized in that: The support mechanism comprises an inner support plate (14) mounted in the cavity, and the transmission shaft (15) is rotatably mounted on the inner support plate (14).

4. A crawler vehicle and crawler suspension support structure thereof according to claim 3, characterized in that: The active mechanism comprises active gears (16) mounted on a vertical screw (13) and a transmission shaft (15), and the corresponding active gears (16) are vertically meshed with each other.

5. A crawler vehicle and crawler suspension support structure thereof according to claim 4, characterized in that: The outer support mechanism comprises an outer support plate (7) mounted on the support frame (3), and the double-headed screw (8) is rotatably mounted on the outer support plate (7).

6. A crawler vehicle and crawler suspension support structure thereof according to claim 5, characterized in that: The transmission mechanism comprises transmission gears (17) mounted on a transmission shaft (15) and a double-headed screw (8), and the corresponding transmission gears (17) are vertically meshed with each other.

7. A crawler vehicle and crawler suspension support structure thereof according to claim 6, characterized in that: The transverse movement mechanism comprises a transverse movement frame (9) threadedly mounted on a double-headed screw (8); the transverse movement frame (9) is designed in a circular shape and is rotationally connected to the moving wheel (4).

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