Terrain-imitating triangular track assembly
By using terrain-following triangular track assembly, and utilizing the rotational connection between the wheel frame and the axle, as well as the swing limit pin, the problems of large size, high center of gravity, and poor stability of existing triangular track chassis have been solved, achieving a reduction in overall vehicle size and improved stability for slope operations.
Patent Information
- Application Number
- CN202520671221.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-10
AI Technical Summary
When existing triangular tracked chassis are used in hilly areas, the vehicle is large in size, has a high center of gravity, and poor driving stability, making it difficult to adapt to uneven terrain.
It adopts a terrain-following triangular track assembly, and directly installs the travel drive through the rotating connection structure of the wheel frame and wheel axle, which reduces the swing radius, lowers the center of gravity of the whole vehicle, and limits the swing amplitude through the swing limit pin, thereby improving stability.
This resulted in a reduction in overall vehicle size and a lower center of gravity, improving stability on slopes and the vehicle's ability to navigate narrow passages.
Smart Images
Figure CN223850709U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to chassis technical field especially relates to a terrain simulation triangular track general assembly. BACKGROUND
[0002] The agricultural mechanization level is generally low in hilly areas due to the limitation of natural conditions, and the large slope and more ground undulation in hilly areas are important factors affecting the implementation of agricultural machinery. In some operations, a traction chassis is used to drive the working machinery for harvesting, weeding and other operations. Among them, the triangular track type chassis becomes one of the more commonly used traction chassis due to its strong grip and good adaptability to ground undulation. In the triangular track type chassis, the triangular track wheel is jointly wrapped around the track with three belt pulleys arranged in a triangular shape, so that the track forms a nearly triangular shape, and a section at the bottom of the triangular track is used to contact the ground. In the existing triangular track wheel, the upper belt pulley is a driving wheel, the wheel shaft of the driving wheel is rotatably installed with a wheel frame, and the other two belt pulleys are installed at the front and rear ends of the wheel frame. The driving wheel is installed on the chassis through the wheel shaft, and the driving wheel shaft is rotated through the driving device to drive the driving wheel to drive the track to run, realizing walking driving. When encountering ground undulation, the wheel frame adaptively swings around the driving wheel to adapt to the ground undulation and walk.
[0003] Although the conventional triangular track type chassis can adapt to ground undulation, it still has some deficiencies when used in hilly areas, which are as follows: first, in the triangular track wheel, the driving wheel is rotatably installed on the chassis through the wheel shaft, and at the same time, the driving power is connected through the wheel shaft. At least two bearing structures are required to be installed on the chassis to meet the above functions, so the space required for the rotational connection and power connection between the wheel shaft and the chassis is large, resulting in a large vehicle volume, poor ability of the vehicle to pass through narrow roads, and poor ability of the vehicle to be used with the field ridge. Second, the connection between the wheel shaft of the higher driving wheel and the chassis is higher, so the height of the chassis is higher, and the center of gravity of the vehicle is higher, which makes it difficult to maintain good stability when working on a slope. Third, the triangular track wheel takes the wheel shaft of the higher driving wheel as the pivot, and the swing radius is large, so the stability during walking is poor. Therefore, the triangular track type chassis needs to be improved. UTILITY MODEL CONTENTS
[0004] The technical problem to be solved by the utility model is to provide a terrain simulation triangular track general assembly with good swing stability, which is beneficial to reduce the center of gravity of the vehicle and reduce the volume of the vehicle.
[0005] To solve the above technical problems, the technical scheme of the utility model is as follows: a terrain simulation triangular track general assembly, which comprises a wheel frame, a rotating connection structure for rotating connection with a wheel shaft is arranged in the middle of the wheel frame, three belt pulleys are rotatably installed on the wheel frame, a track is jointly wrapped around the three belt pulleys, a walking driving device is fixedly installed on the wheel frame, and the power end of the walking driving device is in power connection with the upper belt pulley.
[0006] As a preferred technical scheme, the swing limiting pin is arranged radially on the wheel shaft and extends outward from the outer circumferential surface of the wheel shaft, and the swing limiting part is arranged on the wheel frame and used for abutting against the extending end of the swing limiting pin.
[0007] As a preferred technical scheme, the swing limiting pin extends outward from the outer circumferential surface of the wheel shaft at two ends, and the swing limiting part comprises swing limiting columns fixedly arranged above the two extending ends of the swing limiting pin.
[0008] As a preferred technical scheme, the end surface of the wheel shaft is provided with a pin mounting groove, the swing limiting pin is mounted in the pin mounting groove, and the swing limiting pin is in bolted connection with the end surface of the wheel shaft.
[0009] As a preferred technical scheme, the rotating connection structure comprises a nylon shaft sleeve fixedly mounted on the wheel frame, and the wheel shaft is in rotating connection with the nylon shaft sleeve.
[0010] Due to the above technical scheme, the terrain simulation triangular track total assembly comprises a wheel frame, a rotating connection structure for rotating connection with a wheel shaft is arranged at the middle part of the wheel frame, three pulleys are rotatably mounted on the wheel frame, a track is jointly wound around the three pulleys, a walking driver is fixedly mounted on the wheel frame, and the power end of the walking driver is in power connection with the upper pulley. The wheel frame is directly connected with the wheel shaft of the chassis through the rotating connection structure at the middle part, the swing radius is small, and the swing stability is good. The low wheel shaft is beneficial to the formation of a low gravity center of the whole vehicle of the chassis, and improves the slope operation stability. The walking driver is directly mounted on the wheel frame, the wheel shaft can be directly fixed on the chassis, the complex arrangement of bearing mechanisms and the like is avoided, the structure is more compact, more space is provided for the arrangement of other equipment on the chassis, and the volume of the whole vehicle is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0011] The following drawings are only intended to schematically illustrate and explain the utility model, and do not limit the scope of the utility model. Among them:
[0012] Figure 1 is a three-dimensional structure schematic view of the utility model embodiment;
[0013] Figure 2 is Figure 1 A-A structure schematic view of the utility model embodiment;
[0014] Figure 3 is a structure view of the utility model embodiment when being installed and used on the chassis;
[0015] Figure 4 is Figure 3State diagram of adapting to undulating ground.
[0016] In the figure: 1-wheel frame; 11-belt wheel; 12-track; 13-supporting wheel; 2-rotary connection structure; 21-nylon shaft sleeve; 3-traveling driver; 4-oscillation limiting pin; 41-oscillation limiting part; 42-pin slot; 9-chassis; 91-wheel shaft. DETAILED DESCRIPTION
[0017] The utility model is further explained below in combination with the drawings and examples. In the following detailed description, only some exemplary embodiments of the utility model are described by way of illustration. It is needless to say that those skilled in the art can realize that the described embodiments can be modified in various ways without departing from the spirit and scope of the utility model. Therefore, the drawings and the description are illustrative in nature, and are not used to limit the protection scope of the claims.
[0018] As Figures 1 to 4 It is shown together that the terrain simulation triangular track assembly includes a wheel frame 1, the wheel frame 1 is the supporting structure of belt wheel 11 and track 12 etc., and its specific structure is easily obtained by those skilled in the art according to conventional technical means, which will not be repeated here.The middle part of the wheel frame 1 is provided with a rotary connection structure 2 for rotary connection with the wheel shaft 91, three belt wheels 11 are rotatably installed on the wheel frame 1, and the track 12 is jointly wound on the three belt wheels 11, of course, if necessary, the supporting wheel 13 is also installed on the wheel frame 1 to improve the supporting walking ability; The traveling driver 3 is fixedly installed on the wheel frame 1, and the power end of the traveling driver 3 is power-connected with the upper belt wheel 11.
[0019] The wheel frame 1 of the embodiment is directly connected with the wheel shaft 91 of the chassis 9 through the rotary connection structure 2 in the middle part, the swing radius is small, and the swing stability is good. The wheel shaft 91 is relatively in a lower position, which is beneficial to the chassis 9 to form a lower vehicle gravity center, improve the slope operation stability. The traveling driver 3 is directly installed on the wheel frame 1, the wheel shaft 91 can be directly fixed on the chassis 9, which avoids the complex arrangement of bearing mechanism and other structures, the structure is more compact, provides more space for the arrangement of other equipment on the chassis 9, is beneficial to reduce the volume of the whole vehicle, improve the alley passing ability of the chassis 9, and is beneficial to adapt the chassis 9 to smaller distance field ridge for matching use.
[0020] Among them, the rotary connection structure 2 of the embodiment includes a nylon shaft sleeve 21 fixedly installed on the wheel frame 1, and the wheel shaft 91 is rotatably connected with the nylon shaft sleeve 21. Compared with bearing connection, this kind of rotary connection structure 2 has outstanding rust and dust prevention effect, and the structure cost is lower.
[0021] Preferably, the wheel shaft 91 is fixed with a radial swing limiting pin 4, which extends from the outer circumferential surface of the wheel shaft 91, and the wheel frame 1 is provided with a swing limiting part 41 for abutting against the extended end of the swing limiting pin 4. When passing through the undulating ground, the wheel frame 1 is adapted to the ground undulation by passive swing, and when the swing angle increases to a certain extent, the swing limiting part 41 abuts against the extended end of the swing limiting pin 4 to limit the swing amplitude, thereby ensuring the normal walking of the embodiment.
[0022] The swing of the wheel frame 1 is divided into forward swing when climbing and backward swing when descending, and in order to ensure that the forward and backward swings can both be limited in amplitude, the swing limiting part 41 should be able to limit the forward and backward swings respectively by the swing limiting pin 4. Both ends of the swing limiting pin 4 of the embodiment extend from the outer circumferential surface of the wheel shaft 91, and the swing limiting part 41 includes swing limiting columns fixedly arranged above both extended ends of the swing limiting pin 4, the swing limiting column on the front side abuts against the extended end on the front side of the swing limiting pin 4 to limit the backward swing amplitude, and the swing limiting column on the rear side abuts against the extended end on the rear side of the swing limiting pin 4 to limit the forward swing amplitude. Of course, the swing limiting part 41 includes swing limiting columns arranged above and below the same extended end of the swing limiting pin 4, which has the same effect, and this should also be within the protection scope of the utility model.
[0023] Preferably, the end surface of the wheel shaft 91 is provided with a pin mounting groove 42, the swing limiting pin 4 is mounted in the pin mounting groove 42, and the swing limiting pin 4 is in bolted connection with the end surface of the wheel shaft 91. The swing limiting pin 4 is mounted in the pin mounting groove 42, which is simple to install, and the pin mounting groove 42 limits the swing limiting pin 4 in circumferential movement, thereby playing a role in limiting the swing amplitude of the wheel frame 1.
[0024] The basic principles, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A terrain conforming tracked vehicle assembly comprising a frame, characterised in that: The middle part of the wheel frame is provided with a rotating connection structure for rotating connection with the wheel shaft, three belt wheels are rotatably installed on the wheel frame, a track is jointly wound on the three belt wheels, a walking driver is fixedly installed on the wheel frame, and the power end of the walking driver is in power connection with the belt wheels on the upper part.
2. The terrain conforming triangular track assembly of claim 1, wherein: The wheel shaft is fixedly provided with a radially arranged swing limiting pin, the swing limiting pin is arranged to protrude from the outer circumferential surface of the wheel shaft, and the wheel frame is provided with a swing limiting part for abutting against the protruding end of the swing limiting pin.
3. The terrain conforming triangular track assembly of claim 2, wherein: The two ends of the swing limiting pin respectively protrude from the outer circumferential surface of the wheel shaft, and the swing limiting part includes swing limiting columns fixedly arranged above the two protruding ends of the swing limiting pin.
4. The terrain conforming triangular track assembly of claim 2, wherein: The end surface of the wheel shaft is provided with a pin groove, the swing limiting pin is installed in the pin groove, and the swing limiting pin and the end surface of the wheel shaft are in bolted connection.
5. The terrain conforming triangular track assembly of any one of claims 1 to 4, wherein: The rotating connection structure includes a nylon shaft sleeve fixedly installed on the wheel frame, and the wheel shaft is in rotating cooperation with the nylon shaft sleeve.