A track structure

Abstract

The utility model provides a caterpillar structure, include: annular caterpillar chain, form closed annular by hinge connection in proper order from several chain links through pin shaft, the chain link includes inside meshing portion and outside connecting portion, drive wheel, install in one end of caterpillar chain inside, with inside meshing portion transmission connection of chain link, driven wheel, install in the other end of caterpillar chain inside, connect with equipment frame through tensioning support, the driven wheel is installed in the opening end of tensioning support through pivot, to adjust the tension of caterpillar chain, supporting wheel subassembly contains three supporting wheels, and is installed in the inside of caterpillar chain lower branch branch through supporting wheel support spacing, this structure enhances the antiskid performance, promotes power transmission efficiency, is convenient for tensioning adjustment, optimizes support guide, adapts complex working condition, prolongs the life, reduces maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts technology, and in particular to a track structure. Background Technology

[0002] In fields such as engineering machinery, agricultural machinery, and mining equipment, track structures, as a core component of the walking device, bear the important functions of transmitting power, supporting equipment weight, and adapting to complex terrain. However, existing track structures have many limitations in practical applications: First, the anti-slip design of traditional track plates is mostly simple pattern or shallow tooth structure, which is prone to slippage in muddy, slippery, or steep working environments, not only reducing equipment operating efficiency but also potentially causing safety accidents; Second, track tension adjustment mechanisms often use cumbersome mechanical structures, making the adjustment process time-consuming and labor-intensive, and the tension accuracy is insufficient, resulting in decreased meshing stability between the track and the drive and driven wheels, and exacerbating component wear; Third, the contact between the track roller and the track link is mostly planar, lacking an axial limiting structure, which easily causes relative displacement when the equipment turns or travels on bumps, affecting the smoothness of track operation; Fourth, the support system layout of some track structures is unreasonable, and the upper branch track is prone to sagging due to its own weight, resulting in unstable meshing clearance with the drive and driven wheels, increasing power transmission loss.

[0003] To address the aforementioned issues, this track structure achieves a comprehensive improvement in the performance of traditional tracks by optimizing the link design, improving the anti-slip structure, perfecting the tension adjustment mechanism, and optimizing the support layout, thus adapting to more complex operating environments and higher equipment performance requirements. Utility Model Content

[0004] This utility model provides a track structure to overcome the deficiencies in the prior art.

[0005] This utility model provides a track structure, including:

[0006] A ring track chain is formed by hinged links in sequence through pins to form a closed ring; each link includes an inner meshing part and an outer connecting part; a track plate is fixed to the surface of the outer connecting part, and anti-slip teeth are integrally formed on the outer surface of the track plate.

[0007] A drive wheel is installed at one end of the inner side of the track chain and is connected to the inner meshing part of the chain link for transmission.

[0008] The driven wheel is installed at the other end of the inner side of the track chain and is connected to the equipment frame through a tension bracket; the driven wheel is installed at the open end of the tension bracket through a rotating shaft to adjust the tension of the track chain.

[0009] The track roller assembly includes three track rollers, which are installed at intervals on the inner side of the lower branch of the track chain via track roller brackets; the outer peripheral surface of the track rollers is in rolling engagement with the inner meshing part of the chain link.

[0010] The support wheel has its outer circumferential surface rollingly engaged with the inner meshing part of the chain link.

[0011] According to the track structure provided by this utility model, the anti-slip teeth are trapezoidal teeth, and adjacent anti-slip teeth are set with equal spacing and tooth height.

[0012] According to the present invention, the outer connecting part of the chain link is detachably connected to the track plate, or fixed by a snap-fit ​​structure.

[0013] According to the track structure provided by this utility model, the support wheel is installed on the inner side of a branch on the track chain and is located in the upper region between the drive wheel and the driven wheel; it is distributed opposite to the support wheel assembly.

[0014] According to the present invention, the track structure has an annular groove on the outer circumferential surface of the support roller, and the cross-sectional shape of the annular groove is adapted to the inner meshing part of the chain link to limit the relative axial displacement between the support roller and the chain link.

[0015] This utility model provides a track structure where the trapezoidal anti-slip teeth integrally formed on the outer surface of the track plates feature an equal-spacing, equal-height design, increasing the contact friction with the ground. This effectively reduces slippage, especially on muddy, slippery, or soft surfaces, improving the operational safety and stability of the equipment. Furthermore, the trapezoidal tooth structure is more wear-resistant than traditional pointed teeth, extending the service life of the track plates. The drive wheel ensures efficient power transmission from the drive wheel to the track chain, reducing power loss. The chain links are hinged by pins to form a closed loop, ensuring continuous movement of the track chain, resulting in smooth equipment operation and preventing impacts and vibrations caused by power transmission interruptions. The driven wheel is mounted on the open end of the tensioning bracket via a rotating shaft, allowing for flexible adjustment of the track chain tension. This facilitates timely adjustments when the track length changes due to wear or temperature variations, ensuring proper meshing between the track and each wheel system, reducing component wear, and lowering maintenance costs. Simultaneously, the structural design of the tensioning bracket ensures stability after adjustment, preventing tension deviation during operation. Three track rollers are mounted on the inner side of the lower branch of the track chain via spaced-apart brackets. The annular grooves on their outer circumferences mate with the inner meshing parts of the chain links, serving both to support the weight of the equipment and to limit the relative axial displacement between the track rollers and the chain links, preventing track deviation. Support rollers are mounted on the inner side of the upper branch of the track chain and are distributed opposite to the track roller assembly, effectively supporting the upper branch track and preventing changes in meshing clearance due to its own weight, ensuring smooth track operation and guiding accuracy. The outer connecting parts of the chain links are detachably connected to the track plates or fixed with a snap-fit ​​structure, facilitating individual replacement of the track plates and reducing maintenance costs. The overall structure is compact, with precise fit among components, adaptable to different load and terrain variations under various working conditions, improving the equipment's environmental adaptability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the track structure provided in this embodiment of the utility model;

[0018] Figure 2 These are schematic diagrams of the track structure at different angles provided in the embodiments of this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] This application provides a track structure, including:

[0024] The annular track chain 1 is formed by a number of chain links 11 being hinged together in sequence by pins to form a closed ring; the chain link 11 includes an inner meshing part 111 and an outer connecting part 112; a track plate 13 is fixed on the surface of the outer connecting part 112, and anti-slip teeth 131 are integrally formed on the outer surface of the track plate 13.

[0025] The drive wheel 2 is installed at one end of the inner side of the track chain and is connected to the inner meshing part of the chain link for transmission.

[0026] Driven wheel 3 is installed at the other end of the inner side of the track chain and is connected to the equipment frame through tension bracket 31; the driven wheel 3 is installed at the open end of tension bracket 31 through rotating shaft 32 to adjust the tension of the track chain;

[0027] The track roller assembly 4 includes three track rollers 41, which are installed at intervals on the inner side of the lower branch of the track chain via track roller brackets; the outer peripheral surface of the track roller 41 is in rolling engagement with the inner meshing part 111 of the chain link 11.

[0028] The support wheel 5 has its outer circumferential surface rollingly engaged with the inner meshing part 111 of the chain link 11.

[0029] According to the track structure provided by this utility model, the anti-slip teeth 131 are trapezoidal teeth, and adjacent anti-slip teeth 131 are arranged with equal spacing and tooth height.

[0030] According to the track structure provided by this utility model, the outer connecting part 112 of the chain link 11 is detachably connected to the track plate 13, or fixed by a buckle structure.

[0031] According to the track structure provided by this utility model, the support wheel 5 is installed on the inner side of the branch on the track chain and is located in the upper region between the drive wheel 2 and the driven wheel 3; it is distributed opposite to the support wheel assembly 4.

[0032] According to the track structure provided by this utility model, the outer peripheral surface of the support roller 41 is provided with an annular groove 411, and the cross-sectional shape of the annular groove 411 is adapted to the inner meshing part 111 of the chain link 11 to limit the relative axial displacement between the support roller and the chain link.

[0033] The core function of this tracked structure is to enable the equipment to move by coordinating the various components. The specific process is as follows:

[0034] Driven by a power source (such as an engine), the drive wheel 2 rotates around its own axis, transmitting power to the closed ring track chain formed by several chain links 11 sequentially hinged by pins, thus driving the track chain to move along a closed ring track.

[0035] When the track chain moves under the drive wheel 2, the outer connecting part 112 of the chain link 11 drives the track plate 13 to contact the ground and generate friction, propelling the equipment forward or backward. At the same time, the movement of the track chain drives the driven wheel 3 to rotate around the shaft 32. The driven wheel 3 is connected to the equipment frame through the tension bracket 31, and its position can be adjusted by the tension bracket 31 to ensure that the track chain is always in a reasonable tension state and to ensure the smoothness of the movement.

[0036] During the movement of the lower branch of the track chain, three support rollers 41 are installed on the inner side of the lower branch of the track chain through spaced brackets. Their outer circumferential surfaces roll into contact with the inner meshing parts 111 of the chain links 11, supporting part of the weight of the equipment. The annular grooves 411 on the outer circumferential surfaces of the support rollers 41 are adapted to the inner meshing parts 111 of the chain links 11, which can limit the relative axial displacement between the support rollers 41 and the chain links 11 and prevent the track from deviating. The support rollers 5 are located on the inner side of the upper branch of the track chain and are distributed opposite to the support roller assembly 4. Their outer circumferential surfaces roll into contact with the inner meshing parts 111 of the chain links 11, supporting the upper branch track and preventing it from sagging. This ensures that the track chain is stably engaged with the drive wheel 2 and the driven wheel 3 during movement, ensuring continuous and efficient power transmission.

[0037] When the trapezoidal anti-slip teeth 131 on the outer surface of the track plate 13 come into contact with the ground, they embed into the ground surface (especially on soft or muddy ground), increasing friction to prevent the track plate 13 from sliding relative to the ground, thus ensuring the normal driving and operation of the equipment in complex terrain.

[0038] This utility model provides a track structure where the trapezoidal anti-slip teeth integrally formed on the outer surface of the track plates feature an equal-spacing, equal-height design, increasing the contact friction with the ground. This effectively reduces slippage, especially on muddy, slippery, or soft surfaces, improving the operational safety and stability of the equipment. Furthermore, the trapezoidal tooth structure is more wear-resistant than traditional pointed teeth, extending the service life of the track plates. The drive wheel ensures efficient power transmission from the drive wheel to the track chain, reducing power loss. The chain links are hinged by pins to form a closed loop, ensuring continuous movement of the track chain, resulting in smooth equipment operation and preventing impacts and vibrations caused by power transmission interruptions. The driven wheel is mounted on the open end of the tensioning bracket via a rotating shaft, allowing for flexible adjustment of the track chain tension. This facilitates timely adjustments when the track length changes due to wear or temperature variations, ensuring proper meshing between the track and each wheel system, reducing component wear, and lowering maintenance costs. Simultaneously, the structural design of the tensioning bracket ensures stability after adjustment, preventing tension deviation during operation. Three track rollers are mounted on the inner side of the lower branch of the track chain via spaced-apart brackets. The annular grooves on their outer circumferences mate with the inner meshing parts of the chain links, serving both to support the weight of the equipment and to limit the relative axial displacement between the track rollers and the chain links, preventing track deviation. Support rollers are mounted on the inner side of the upper branch of the track chain and are distributed opposite to the track roller assembly, effectively supporting the upper branch track and preventing changes in meshing clearance due to its own weight, ensuring smooth track operation and guiding accuracy. The outer connecting parts of the chain links are detachably connected to the track plates or fixed with a snap-fit ​​structure, facilitating individual replacement of the track plates and reducing maintenance costs. The overall structure is compact, with precise fit among components, adaptable to different load and terrain variations under various working conditions, improving the equipment's environmental adaptability.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A track structure, characterized by, include: The annular track chain (1) is formed by a number of chain links (11) being hinged in sequence by pins to form a closed ring; the chain link (11) includes an inner meshing part (111) and an outer connecting part (112); a track plate (13) is fixed on the surface of the outer connecting part (112), and anti-slip teeth (131) are integrally formed on the outer surface of the track plate (13). The drive wheel (2) is installed at one end of the inner side of the annular track chain (1), and the drive wheel (2) meshes with the inner meshing part (111) of the chain link (11) for transmission. Driven wheel (3) is installed at the other end of the inner side of the track chain and is connected to the equipment frame through tension bracket (31); the driven wheel (3) is installed at the open end of the tension bracket (31) through a rotating shaft (32) to adjust the tension of the track chain; The track roller assembly (4) includes three track rollers (41), which are installed at intervals on the inner side of the lower branch of the track chain via track roller brackets; the outer peripheral surface of the track roller (41) is in rolling engagement with the inner meshing part (111) of the chain link (11); The support wheel (5) has its outer circumferential surface rollingly engaged with the inner meshing part (111) of the chain link (11).

2. A track structure according to claim 1, wherein, The anti-slip teeth (131) are trapezoidal teeth, and adjacent anti-slip teeth (131) are set with equal spacing and tooth height.

3. The track structure of claim 1, wherein, The outer connecting part (112) of the chain link (11) is detachably connected to the track plate (13) or fixed by a snap-fit ​​structure.

4. The track structure of claim 1, wherein, The support wheel (5) is installed on the inner side of the branch on the track chain and is located in the upper area between the drive wheel (2) and the driven wheel (3); it is distributed opposite to the support wheel assembly (4).

5. A track structure according to claim 1, characterized in that, The outer circumferential surface of the support roller (41) is provided with an annular groove (411), the cross-sectional shape of which is adapted to the inner meshing part (111) of the chain link (11) to limit the relative axial displacement between the support roller and the chain link.

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