Novel crawler-type engineering machinery thrust wheel

Abstract

The utility model discloses a novel crawler-type engineering machinery thrust wheel which comprises a thrust wheel body, a rolling groove is formed in one end of the thrust wheel body, a connecting column is fixedly installed at one end of the thrust wheel body, a through opening is formed in the thrust wheel body, and sealing pieces are arranged at the two ends of the through opening. Limiting clamping grooves are evenly formed in the periphery of the sealing piece in a surrounding mode, through grooves are evenly formed in the through opening in a surrounding mode, and limiting clamping blocks fixed to the limiting clamping grooves in a limiting mode are slidably connected into the through grooves. The guide block and the guide groove are in accurate butt joint, the installation difficulty is greatly reduced, it is ensured that the installation position is accurate, the limiting clamping block is flexibly controlled through rotation operation, space is created for installation of the sealing piece, tight limiting can be achieved, finally, the threaded rod is used for fixing, accidental rotation is prevented, and the installation stability is enhanced; the whole structure is convenient to mount and dismount, the stability of the sealing piece during working is guaranteed, and the performance of the thrust wheel is improved.

Description

Technical Field

[0001] This utility model relates to the field of track roller technology, specifically a new type of tracked engineering machinery track roller. Background Technology

[0002] Track rollers are one of the four wheels and one track in the tracked chassis of excavators, bulldozers, etc. Their main function is to support the weight of the excavator or bulldozer and allow the tracks to move along the wheels. Track rollers are an important component of the walking and support system of tracked excavators. Under normal circumstances, track rollers are the carriers that bear the overall weight of the machine.

[0003] According to announcement number CN222591637U, a highly adaptable support roller includes a support roller body and a rotating rod. The support roller body comprises two wheels and a connecting column. The two wheels are coaxially and fixedly connected by the connecting column. Each wheel has a groove. A through-hole is formed in each support roller body, through which the rotating rod passes. Two bearings are fixedly connected to the inner wall of the through-hole, and both bearings are fixedly connected to the rotating rod. Two seals are fixedly connected to the inner wall of the through-hole, and both seals are rotatably connected to the outer wall of the rotating rod. The support roller body is constructed from the outside in, consisting of an anti-oxidation layer, a corrosion-resistant layer, a wear-resistant layer, and a high-strength hardness layer. This invention protects the bearings by using seals to prevent contamination from external dust and impurities. The anti-oxidation, corrosion-resistant, wear-resistant, and high-strength hardness layers effectively extend the service life of the support roller.

[0004] The above-mentioned device can protect the bearing by setting a seal. According to the instruction manual, the seal is fixedly connected to the inner wall of the opening. The seal is usually made of organic materials such as rubber. During long-term use, the support roller will generate heat when working. The high temperature environment will accelerate the aging process of the seal, causing it to lose its elasticity and become dry, cracked, hardened, etc. The fixed connection will make it more troublesome to replace it later. Utility Model Content

[0005] The purpose of this utility model is to address the problem that the above-mentioned device can protect the bearing by setting a seal. According to the instruction manual, the seal is fixedly connected to the inner wall of the opening. The seal is usually made of organic materials such as rubber. During long-term use, the support roller will generate heat when working. The high temperature environment will accelerate the aging process of the seal, causing it to lose its elasticity and become dry, cracked, and hardened. The fixed connection will make it more troublesome to replace it later. Therefore, this utility model provides a new type of tracked engineering machinery support roller.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A novel tracked engineering machinery support roller, comprising a support roller body, a groove at one end of the support roller body, and a connecting column fixedly installed at one end of the support roller body. An opening is provided inside the support roller body, and sealing elements are provided at both ends of the opening. Limiting grooves are uniformly formed around the outer periphery of the sealing elements. A through groove is uniformly formed around the inside of the opening, and a limiting block, which is slidably connected to and limited by the limiting groove, is connected to the through groove. A cavity is provided at one end of the support roller body, and a rotating disk is rotatably connected inside the cavity. An arc-shaped groove is uniformly formed around one end of the rotating disk. A connecting rod is fixedly installed at the bottom end of the limiting block, and a connecting shaft is fixedly installed through the through groove on the connecting rod. The connecting shaft is adapted to the arc-shaped groove.

[0007] As a further embodiment of this utility model: one end of the support wheel body is provided with a swivel groove, and a swivel rod that passes through the swivel groove is fixedly installed at one end of the rotating disk, and a sealing block is fixedly installed at one end of the swivel rod.

[0008] As a further embodiment of this utility model: a fixing block is fixedly installed on the outer periphery of the actuating rod, and one end of the fixing block is symmetrically threadedly connected to a threaded rod that is threadedly fixed to the support wheel body.

[0009] As a further embodiment of this utility model: a guide block is fixedly installed on the outer periphery of the sealing element to facilitate installation, and the guide block is symmetrically fixedly installed on the outer periphery of the sealing element. A guide groove adapted to the guide block is symmetrically opened inside the opening.

[0010] As a further improvement of this utility model: a sealing bearing is rotatably connected inside the sealing element, and a through hole is opened at one end of the sealing bearing, through which a rotating rod is inserted.

[0011] As a further improvement of this utility model, a return spring is fixedly installed inside the through groove and sleeved around the outer periphery of the connecting rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes the precise docking of guide blocks and guide grooves to significantly reduce installation difficulty and ensure accurate installation position. The limit block is flexibly controlled by rotation, creating space for seal installation and achieving tight positioning. Finally, it is fixed by a threaded rod to prevent accidental rotation and enhance installation stability. The overall structure is convenient for installation and disassembly, ensures the stability of the seal during operation, and improves the performance of the support roller. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an exploded structural diagram of the sealing element and the support wheel body in this utility model;

[0016] Figure 3 This is a utility model Figure 3 A magnified schematic diagram of the local structure at point A;

[0017] Figure 4 This is a cross-sectional structural diagram of the support wheel body of this utility model;

[0018] Figure 5 This is a utility model Figure 4 A magnified schematic diagram of the local structure at point B;

[0019] Figure 6 This is a structural schematic diagram of the sealing element in this utility model.

[0020] In the diagram: 1. Support roller body; 2. Groove; 3. Connecting column; 4. Through port; 5. Seal; 6. Sealed bearing; 7. Through hole; 8. Rotating rod; 9. Guide block; 10. Guide groove; 11. Through groove; 12. Limiting block; 13. Connecting rod; 14. Cavity; 15. Rotating disk; 16. Connecting shaft; 17. Arc groove; 18. Actuating arc groove; 19. Actuating rod; 20. Fixing block; 21. Threaded rod; 22. Sealing block; 23. Return spring; 24. Limiting groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0023] Reference Figures 1 to 6 In this embodiment of the utility model, a novel tracked engineering machinery support roller includes a support roller body 1. One end of the support roller body 1 has a groove 2, and a connecting post 3 is fixedly installed at one end of the support roller body 1. An opening 4 is provided inside the support roller body 1, and sealing elements 5 are provided at both ends of the opening 4. Limiting grooves 24 are evenly formed around the outer periphery of the sealing elements 5. A through groove 11 is evenly formed around the inside of the opening 4, and the through groove 11 is slidably connected to the limiting groove 2. 4. A limiting block 12 for limiting and fixing. A cavity 14 is opened at one end of the support wheel body 1, and a rotating disk 15 is rotatably connected inside the cavity 14. An arc-shaped groove 17 is evenly opened around one end of the rotating disk 15. A connecting rod 13 is fixedly installed at the bottom end of the limiting block 12, and a connecting shaft 16 is fixedly installed through the through groove 11. The connecting shaft 16 is adapted to the arc-shaped groove 17. A return spring 23 is fixedly installed inside the through groove 11 and sleeved on the outer periphery of the connecting rod 13.

[0024] The above scheme is adopted: the through-hole 4 penetrates the inside of the wheel body, and the seals 5 at both ends are made of high-quality rubber with excellent sealing performance. The limiting grooves 24 that are evenly surrounded on the outer periphery correspond to the through grooves 11 that are evenly distributed in the through-hole 4. The limiting block 12 can slide flexibly in the through groove 11 and can be accurately locked into the limiting groove 24 to achieve stable positioning. The rotating disk 15 rotates smoothly in the cavity 14 at one end of the wheel body. The arc groove 17 at one end of the rotating disk 15 is precisely matched with the connecting shaft 16 on the connecting rod 13 at the bottom of the limiting block 12. When the rotating disk rotates, the connecting shaft 16 moves along the arc groove, driving the limiting block to move. The return spring 23 that is sleeved in the through groove 11 around the outer periphery of the connecting rod ensures that the limiting block can automatically return to its position when there is no external force, which greatly improves the convenience of installing and disassembling the seals and ensures the stability of the seal.

[0025] Reference Figures 1 to 6 The support roller body 1 has a swivel groove 18 at one end, and a swivel rod 19 that passes through the swivel groove 18 is fixedly installed at one end of the rotating disk 15. A sealing block 22 is fixedly installed at one end of the swivel rod 19, and a fixing block 20 is fixedly installed on the outer periphery of the swivel rod 19. A threaded rod 21 that is threadedly fixed to the support roller body 1 is symmetrically threaded at one end of the fixing block 20.

[0026] The above scheme is adopted: a precisely cut actuating arc groove 18 is made at one end of the support roller body 1, the groove wall of which is smooth, providing a smooth running trajectory for subsequent operation. A toggle rod 19 is firmly welded to one end of the rotating disk 15. The toggle rod 19 precisely passes through the actuating arc groove 18. Inside the cavity 14, a sealing block 22 is tightly fixed to the outer periphery of one end of the toggle rod 19. The sealing block 22 is made of highly elastic and wear-resistant rubber material, which effectively prevents dust, impurities, etc. from entering the cavity 14, ensuring the stable operation of the internal structure. A fixing block 20 is also fixedly installed on the outer periphery of the moving rod 19. Threaded holes are symmetrically arranged on the fixing block 20. The threaded rod 21 is threadedly connected to the fixing block 20 and can be threadedly fixed to the support roller body 1. When it is necessary to adjust the position of the rotating disk 15 to control the limit block 12, it can be achieved by rotating the toggle rod 19. After adjustment, tighten the threaded rod 21 to make it tightly fixed to the wheel body, preventing the rotating disk 15 from rotating accidentally, ensuring the stability of the seal installation, and thus improving the overall performance and reliability of the support roller.

[0027] Reference Figures 1 to 6 A guide block 9 is fixedly installed on the outer periphery of the sealing element 5 to facilitate installation. The guide block 9 is symmetrically fixedly installed on the outer periphery of the sealing element 5. A guide groove 10 adapted to the guide block 9 is symmetrically opened inside the opening 4.

[0028] The above solution employs the following: the seal 5 is made of high-quality rubber material that is wear-resistant and has strong sealing performance. Guide blocks 9 are symmetrically fixed on its outer periphery. The guide blocks 9 are cuboid in shape with a smooth surface and are made of lightweight and sturdy aluminum alloy. On both sides of the inside of the through-hole 4, guide grooves 10 are precisely and symmetrically opened to perfectly fit the guide blocks 9. During installation, the guide blocks 9 are aligned with the guide grooves 10. The guide blocks 9, with their smooth surfaces, smoothly slide into the guide grooves 10, which can effectively guide the seal 5 to be installed accurately and quickly into the through-hole 4, greatly reducing the installation difficulty, improving the installation efficiency, ensuring the accurate installation position of the seal, and laying the foundation for the good sealing performance of the support roller.

[0029] Reference Figures 1 to 6 The sealing element 5 is rotatably connected to a sealing bearing 6, and one end of the sealing bearing 6 is provided with a through hole 7, into which a rotating rod 8 is inserted.

[0030] The above solution is adopted: a sealing bearing 6 is precisely installed inside the sealing component 5. The bearing is made of wear-resistant material and has good sealing performance. A through hole 7 is opened at one end of the sealing bearing 6, and the rotating rod 8 is precisely inserted. This structure has outstanding advantages. The rotating rod 8 can rotate flexibly with the help of the sealing bearing 6, which not only ensures smooth transmission between components, but also enhances the sealing effect and improves the overall performance. The sealing bearing 6 and the rotating rod 8 are sealed together.

[0031] The working principle of this utility model is as follows: During installation, guide blocks 9 are symmetrically fixedly installed on the outer periphery of the sealing element 5, and guide grooves 10 adapted to the guide blocks 9 are symmetrically opened inside the through-hole 4. When installing the sealing element 5, the guide blocks 9 are aligned with the guide grooves 10, which can guide the sealing element 5 to be accurately inserted into the through-hole 4, playing a role in initial positioning and facilitating installation. When the sealing element 5 is gradually inserted into the through-hole 4, the rotating disk 15 can be rotated in the rotating arc groove 18 by the actuating rod 19, so that the position of the arc groove 17 changes. Since the connecting shaft 16 is in the arc groove 17, the rotation of the rotating disk 15 will drive the connecting shaft 16 to move, thereby driving the limiting block 12 to slide in the through groove 11 and compress the return spring 23, making room for the insertion of the sealing element 5. When the sealing element 5 is fully inserted into the through-hole 4, the limiting groove 24 on the outer periphery of the sealing element 5 is aligned with the limiting block 12. At this time, the actuating rod 19 is rotated in the opposite direction, and the rotating disk 15 rotates in the opposite direction. Under the action of the return spring 23, the limiting block 12 is closed. The locking block 12 slides into the limiting slot 24, limiting and fixing the seal 5 to the port 4. Finally, the threaded rod 21 on the fixing block 20 is threaded to the support roller body 1, further fixing the actuating rod 19 to prevent the rotating disk 15 from rotating accidentally and to ensure the stability of the seal 5 installation. When disassembling, first unscrew the threaded rod 21 on the fixing block 20 from the support roller body 1 to release the fixation of the actuating rod 19. The rotating disk is then rotated in the actuating arc groove 18 by the actuating rod 19. 15. The position of the arc groove 17 changes, causing the connecting shaft 16 and connecting rod 13 to move, so that the limiting block 12 slides in the through groove 11 and compresses the return spring 23, thereby causing the limiting block 12 to disengage from the limiting groove 24 and release the limitation on the seal 5. When the limiting block 12 is completely disengaged from the limiting groove 24, the seal 5 can be taken out from the through port 4, completing the disassembly process. During the removal process, the guide block 9 slides along the guide groove 10 to ensure smooth removal.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel tracked engineering machinery support roller, comprising a support roller body (1), wherein a groove (2) is provided at one end of the support roller body (1), and a connecting column (3) is fixedly installed at one end of the support roller body (1), wherein a through-hole (4) is provided inside the support roller body (1), and sealing elements (5) are provided at both ends of the through-hole (4), characterized in that, The sealing element (5) has a limiting groove (24) evenly arranged around its outer periphery. The through slot (4) has a through groove (11) evenly arranged around its interior. A limiting block (12) that is fixed to the limiting groove (24) is slidably connected inside the through groove (11). A cavity (14) is opened at one end of the support wheel body (1). A rotating disk (15) is rotatably connected inside the cavity (14). An arc groove (17) is evenly arranged around one end of the rotating disk (15). A connecting rod (13) is fixedly installed at the bottom end of the limiting block (12). A connecting shaft (16) is fixedly installed through the through groove (11) on the connecting rod (13). The connecting shaft (16) is adapted to the arc groove (17).

2. The novel tracked engineering machinery support roller according to claim 1, characterized in that, The support wheel body (1) has a pulsating groove (18) at one end, and a pulsating rod (19) that passes through the pulsating groove (18) is fixedly installed at one end of the rotating disk (15), and a sealing block (22) is fixedly installed at one end of the pulsating rod (19).

3. A novel tracked engineering machinery support roller according to claim 2, characterized in that, The actuating lever (19) is fixedly mounted with a fixing block (20) on its outer periphery, and one end of the fixing block (20) is symmetrically threaded with a threaded rod (21) that is threadedly fixed to the support wheel body (1).

4. A novel tracked engineering machinery support roller according to claim 1, characterized in that, The sealing element (5) is fixedly installed with a guide block (9) for easy installation, and the guide block (9) is symmetrically fixedly installed on the outer periphery of the sealing element (5). The opening (4) is symmetrically provided with guide grooves (10) that are adapted to the guide block (9).

5. A novel tracked engineering machinery support roller according to claim 1, characterized in that, The sealing element (5) is rotatably connected to a sealing bearing (6), and a through hole (7) is provided at one end of the sealing bearing (6), and a rotating rod (8) is inserted into the through hole (7).

6. A novel tracked engineering machinery support roller according to claim 1, characterized in that, A reset spring (23) is fixedly installed inside the through groove (11) and sleeved on the outer periphery of the connecting rod (13).

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