Thrust wheel with improved structure

Abstract

The utility model discloses a thrust wheel with an improved structure, which comprises a supporting seat, a first muddy water prevention deep groove bearing, a second muddy water prevention deep groove bearing, a waterproof sealing element, a wear-resistant sheet, a bearing pressing sheet, a waterproof sealing sheet and a load-bearing wheel body, according to the utility model, the first muddy water prevention deep groove bearing and the second muddy water prevention deep groove bearing which are sleeved on the central shaft are used for bearing the load-bearing wheel body as main stress units, the waterproof sealing element prevents water from entering the load-bearing wheel body, and meanwhile, the wear-resistant sheet is matched to reduce the rotating wear; the waterproof performance is further improved in cooperation with bearing pressing pieces and waterproof sealing pieces on the first muddy water prevention deep groove bearing and the second muddy water prevention deep groove bearing, the supporting structure that an O-shaped sealing ring is installed on an existing friction welding strip disc double-metal sleeve is replaced, the structure is stable, and the bearing performance is good; meanwhile, the supporting height can be adjusted through the rotating joint after installation, the supporting gasket is matched after adjustment to serve as an auxiliary support, and the practicability of the thrust wheel is improved.

Description

Technical Field

[0001] This utility model relates to the field of support roller technology, and in particular to an improved support roller. Background Technology

[0002] Track rollers are crucial components in the tracked walking systems of construction machinery (such as excavators, bulldozers, and crawler cranes). They primarily support the weight of the machinery, transfer the load to the track pads, and guide the track's rotation, reducing friction and wear. They are key components for the stable operation of tracked machinery, and their performance directly affects the equipment's lifespan and efficiency. While existing track rollers generally meet daily usage needs, they primarily rely on friction-welded strip discs with bimetallic sleeves and O-ring seals as the main support structure. Under stress, the O-rings bear the pressure and are prone to deformation during use, thus affecting the track roller's load-bearing capacity and service life. Furthermore, the support seats for the track roller are mostly fixed with bolts, making post-installation position adjustment difficult and impacting the track roller's practicality. Therefore, designing an improved track roller structure is essential. Utility Model Content

[0003] The purpose of this invention is to provide an improved support roller to address the shortcomings of existing designs.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an improved support roller, comprising a support base, a central shaft, a shaft seal ring, a first anti-mud and water deep groove bearing, a second anti-mud and water deep groove bearing, a waterproof seal, a wear-resistant plate, a bearing pressure plate, a waterproof seal, a support roller body, a support plate, an adjusting plate, an adjusting screw, a bottom support, a rotating joint, a limiting block, a first limiting member, a second limiting member, and a support pad. The support base is connected to the central shaft by a pin, and a shaft seal ring is provided between the central shaft and the support base. The central shaft is respectively... The bearing is fitted with a first anti-mud and a second anti-mud and deep groove bearing. A waterproof seal is fitted into a groove on the support seat, and a wear-resistant plate is provided at the connection between the waterproof seal and the first anti-mud and deep groove bearing. A bearing pressure plate is fitted between the inner and outer rings of the first and second anti-mud and deep groove bearings, and a waterproof seal is fitted onto the inner ring of the first and second anti-mud and deep groove bearings, with the waterproof seal adhering to the bearing pressure plate. Both the first and second anti-mud and deep groove bearings are fitted into the load-bearing wheel body.

[0005] As a further technical solution of this utility model, the bottom of the support base is fixedly connected to a support plate by bolts, and an adjustment plate is provided on one side of the support plate.

[0006] As a further technical solution of this utility model, an adjusting screw is connected in the threaded groove at the center of the adjusting plate, and the bottom of the adjusting screw is rotatably connected to the bottom support through a bearing.

[0007] As a further technical solution of this utility model, a rotating joint is fixedly sleeved on the adjusting screw.

[0008] As a further technical solution of this utility model, the top of the adjusting screw is fixedly connected to a limit block by a screw.

[0009] As a further technical solution of this utility model, a first limiting member and a second limiting member are fixedly connected to both sides of the bottom support.

[0010] As a further technical solution of this utility model, a support pad is stacked on top of the bottom support, and the support pad is located between the first limiting member and the second limiting member.

[0011] This utility model provides an improved support roller with the following advantages: A central shaft is supported by a support base. A first and second anti-mud and water-resistant deep groove bearing, sleeved on the central shaft, supports the support roller body as the main load-bearing unit. Waterproof seals on the support base prevent water from entering the support roller body. Wear-resistant plates reduce rotational wear. The bearing plates and waterproof seals on the first and second anti-mud and water-resistant deep groove bearings further improve waterproofing. This replaces the existing support structure with a friction-welded strip, bimetallic sleeve, and O-ring seal. The structure is stable and has good load-bearing capacity. Simultaneously, an adjusting screw rotatably connected to the bottom support is connected to a threaded hole on the adjusting plate. The rotation of the adjusting screw via a rotating joint allows the adjusting plate, support plate, and support base to move up and down using the threaded connection. After adjustment, additional support shims provide auxiliary support, facilitating height adjustment after installation and improving the practicality of the support roller. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of 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 based on these drawings without creative effort.

[0013] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0014] Figure 2 for Figure 1 A magnified view of a portion of region A in the middle;

[0015] Figure 3This is a three-dimensional view of the overall structure of this utility model.

[0016] In the diagram: 1. Support base; 2. Central shaft; 3. Shaft seal ring; 5. First anti-mud and water deep groove bearing; 6. Second anti-mud and water deep groove bearing; 7. Waterproof seal; 8. Wear-resistant plate; 9. Bearing pressure plate; 10. Waterproof seal; 11. Load-bearing wheel body; 12. Support plate; 13. Adjusting plate; 14. Adjusting screw; 15. Bottom support; 16. Rotary joint; 17. Limiting block; 18. First limiting component; 19. Second limiting component; 20. Support gasket. Detailed Implementation

[0017] 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] Please see the appendix Figure 1 -Appendix Figure 3This utility model provides an embodiment of an improved support roller, comprising a support base 1, a central shaft 2, a shaft seal ring 3, a first anti-mud and water deep groove bearing 5, a second anti-mud and water deep groove bearing 6, a waterproof seal 7, a wear-resistant plate 8, a bearing pressure plate 9, a waterproof seal 10, a support roller body 11, a support plate 12, an adjusting plate 13, an adjusting screw 14, a bottom support 15, a rotating joint 16, a limiting block 17, a first limiting member 18, a second limiting member 19, and a support pad 20. The support base 1 is connected by pins. The bearing has a central shaft 2, and a shaft seal ring 3 is provided between the central shaft 2 and the support base 1. A first anti-mud and water deep groove bearing 5 and a second anti-mud and water deep groove bearing 6 are respectively sleeved on the central shaft 2. A waterproof seal 7 is sleeved in a groove opened on the support base 1, and a wear-resistant plate 8 is provided at the connection between the waterproof seal 7 and the first anti-mud and water deep groove bearing 5. A bearing pressure plate 9 is sleeved between the inner and outer rings of the first anti-mud and water deep groove bearing 5 and the second anti-mud and water deep groove bearing 6. A waterproof sealing sheet 10 is fitted onto the inner ring of the bearing, and the waterproof sealing sheet 10 is attached to the bearing pressure plate 9; the first anti-mud and water deep groove bearing 5 and the second anti-mud and water deep groove bearing 6 are both fitted into the load-bearing wheel body 11; the bottom of the support base 1 is fixedly connected to the support plate 12 by bolts, and an adjusting plate 13 is provided on one side of the support plate 12; an adjusting screw 14 is connected to the threaded groove opened at the center of the adjusting plate 13, and the bottom of the adjusting screw 14 is rotatably connected to the bottom support 15 through a bearing; a rotating joint 1 is fixedly fitted onto the adjusting screw 14. 6; The top of the adjusting screw 14 is fixedly connected to the limiting block 17 by screws; The two sides of the bottom support 15 are respectively fixedly connected to the first limiting member 18 and the second limiting member 19; The top of the bottom support 15 is stacked with a support pad 20, and the support pad 20 is located between the first limiting member 18 and the second limiting member 19. After the height is adjusted, the support pad 20 is inserted between the bottom support 15 and the support plate 12 as the main force-bearing structure. The first limiting member 18 and the second limiting member 19 are used to limit the stacked support pad 20.

[0019] Specifically, in use, the central shaft 2 is supported by the support base 1. The first anti-mud and water deep groove bearing 5 and the second anti-mud and water deep groove bearing 6, which are sleeved on the central shaft 2, support the load-bearing wheel body 11 as the main force-bearing unit. The waterproof seal 7 on the support base 1 prevents water from entering the load-bearing wheel body 11. At the same time, the wear-resistant plate 8 is used to reduce rotational wear. The bearing pressure plate 9 and the waterproof seal 10 on the first anti-mud and water deep groove bearing 5 and the second anti-mud and water deep groove bearing 6 further improve the waterproof performance. This replaces the existing support structure with friction welded strip disc bimetallic sleeve and O-ring seal. The structure is stable and has good load-bearing performance. Meanwhile, the adjusting screw 14 rotatably connected to the bottom support 15 is connected to the threaded hole on the adjusting plate 13. The adjustment screw 14 is driven to rotate by the rotating joint 16. The threaded engagement allows the adjusting plate 13, the support plate 12 and the support base 1 to move up and down. After adjustment, the support shim 20 is added as an auxiliary support, which makes it easy to adjust the support height after installation and improves the practicality of the support wheel.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0021] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0022] 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. An improved support roller, comprising a support base (1), a central shaft (2), a shaft seal ring (3), a first anti-mud and water deep groove bearing (5), a second anti-mud and water deep groove bearing (6), a waterproof seal (7), a wear-resistant plate (8), a bearing pressure plate (9), a waterproof seal plate (10), a support roller body (11), a support plate (12), an adjusting plate (13), an adjusting screw (14), a bottom support (15), a rotating joint (16), a limiting block (17), a first limiting member (18), a second limiting member (19), and a support pad (20), characterized in that: A central shaft (2) is connected to the support base (1) by a pin, and a shaft seal ring (3) is provided between the central shaft (2) and the support base (1). A first anti-mud and water deep groove bearing (5) and a second anti-mud and water deep groove bearing (6) are respectively sleeved on the central shaft (2). A waterproof seal (7) is sleeved in the groove opened on the support base (1), and a wear-resistant plate (8) is provided at the connection between the waterproof seal (7) and the first anti-mud and water deep groove bearing (5). The first anti-mud and water deep groove bearing (5) and the second anti-mud and water deep groove bearing (6) are fitted with bearing pressure plates (9) between their inner and outer rings, and waterproof sealing plates (10) are fitted on the inner rings of the first anti-mud and water deep groove bearing (5) and the second anti-mud and water deep groove bearing (6), with the waterproof sealing plates (10) attached to the bearing pressure plates (9); the first anti-mud and water deep groove bearing (5) and the second anti-mud and water deep groove bearing (6) are both fitted into the load-bearing wheel body (11).

2. The improved support roller according to claim 1, characterized in that: The bottom of the support base (1) is fixedly connected to a support plate (12) by bolts, and an adjustment plate (13) is provided on one side of the support plate (12).

3. The improved support roller according to claim 2, characterized in that: An adjusting screw (14) is connected to the threaded groove at the center of the adjusting plate (13), and the bottom of the adjusting screw (14) is rotatably connected to the bottom support (15) through a bearing.

4. The improved support roller according to claim 3, characterized in that: A rotating joint (16) is fixedly sleeved on the adjusting screw (14).

5. The improved support roller according to claim 4, characterized in that: The top of the adjusting screw (14) is fixedly connected to a limit block (17) by a screw.

6. The improved support roller according to claim 3, characterized in that: The bottom support (15) is fixedly connected to the first limiting member (18) and the second limiting member (19) on both sides respectively.

7. The improved support roller according to claim 6, characterized in that: The bottom support (15) has a support pad (20) stacked on top of it, and the support pad (20) is located between the first limiting member (18) and the second limiting member (19).

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