A sealed dustproof idler

Abstract

The utility model relates to idler wheel technical field especially is a sealed dustproof idler wheel, including wheel body subassembly and assembly subassembly, the wheel body subassembly inside is provided with assembly subassembly, the wheel body subassembly includes wheel shell, wheel cover, V type sealing ring, reinforcing sealing ring, bearing piece and O type sealing ring, along the edge contour of wheel shell installs and places V type sealing ring and reinforcing sealing ring, places the V type sealing ring and reinforcing sealing ring with wheel cover inner groove and is pasted, the O type sealing ring is installed and placed in the wheel cover inside, the outer side of axle rod and wheel cover inside, O type sealing ring inside slide installation, two gland positions are installed and placed respectively in the outer side of axle rod left end, right end, two silica gel sealing rings are installed and placed respectively in the gland inner groove position, screw cover and threaded block screw installation, in the utility model, idler wheel device has better sealing dustproof effect, and idler wheel device is convenient to carry out combination installation.

Description

Technical Field

[0001] This utility model relates to the field of idler wheel technology, specifically a sealed and dustproof idler wheel. Background Technology

[0002] As an important component of the transmission system, the proper operation of the idler wheel is crucial to the performance and lifespan of the entire transmission system. The idler wheel usually has a bearing installed inside. During use, the bearing inside the idler wheel is easily corroded by mud, sewage and dust. Take the aforementioned idler wheel device with an internal bearing as an example.

[0003] Some idler gear devices with internal bearings have poor sealing and dustproofing effects on the internal bearings, and the idler gear devices are inconvenient to assemble and install. Therefore, a sealed and dustproof idler gear is proposed to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a sealed and dustproof idler wheel to solve the problems of some idler wheel devices with internal bearings having poor sealing and dustproof effects on the internal bearings, and the inconvenience of assembling and installing the idler wheel device.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sealed, dustproof idler wheel includes a wheel assembly and an assembly assembly. The assembly assembly is disposed inside the wheel assembly. The wheel assembly includes a wheel shell, a wheel cover, a V-shaped sealing ring, a reinforcing sealing ring, a bearing component, and an O-ring. Two wheel covers are symmetrically distributed on the left and right sides of the wheel shell. A V-shaped sealing ring and a reinforcing sealing ring are disposed between the wheel shell and the wheel covers. A bearing component is installed between the wheel shell and the wheel covers. An O-ring is installed inside the wheel cover.

[0007] Preferably, the wheel cover is provided with an assembly assembly, which includes a shaft, threaded blocks, pressure caps, silicone sealing rings, and screw caps. Two threaded blocks are symmetrically and fixedly arranged on the left and right ends of the shaft. Two pressure caps are symmetrically arranged on the outer side of the left and right ends of the shaft. A silicone sealing ring is installed in the inner groove of the pressure cap. A screw cap is threadedly installed on the threaded blocks.

[0008] Preferably, the outer side of the shaft is slidably installed with the inside of the wheel cover and the inside of the O-ring seal.

[0009] Preferably, the bearing component is assembled from an outer bearing ring, an inner bearing ring, a cage, and bearing balls.

[0010] Preferably, the inner groove of the screw cap is in close contact with the silicone sealing ring.

[0011] Preferably, the outer ring of the bearing component is in close contact with the V-shaped seal and the inner wall of the wheel housing, and the inner ring of the bearing component is in close contact with the inner side of the wheel cover.

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

[0013] In this invention, a V-shaped sealing ring and a reinforcing sealing ring are installed along the edge contour of the wheel housing. The inner groove of the wheel cover is fitted with the V-shaped sealing ring and the reinforcing sealing ring. An O-ring is installed inside the wheel cover. The outer side of the shaft is slidably installed with the inner side of the wheel cover and the inner side of the O-ring. Two pressure caps are respectively installed on the outer side of the left and right ends of the shaft. Two silicone sealing rings are respectively installed in the inner groove of the pressure caps. The screw cap and the threaded block are threadedly installed. The V-shaped sealing ring, the reinforcing sealing ring, and the O-ring form a good sealing and dustproof effect for the bearing components. Through the above settings, the idler wheel device has a good sealing and dustproof effect for the internal bearing components, and the idler wheel device is easy to assemble and install. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the wheel housing, threaded block, and screw cap structure of this utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the wheel assembly and assembly components of this utility model.

[0017] Figure 4 This utility model Figure 3 A magnified structural diagram at point A;

[0018] Figure 5 This utility model Figure 3 A magnified structural diagram at point B.

[0019] In the diagram: 1. Wheel assembly; 11. Wheel housing; 12. Wheel cover; 13. V-ring seal; 14. Reinforced seal; 15. Bearing component; 16. O-ring seal; 2. Assembly assembly; 21. Shaft; 22. Threaded block; 23. Pressure cap; 24. Silicone seal; 25. Screw cap. Detailed Implementation

[0020] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0021] In the embodiments of the utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the position or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the 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 of the utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Similarly, words such as "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. Words such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0022] Furthermore, in the embodiments of the utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] Please see Figure 1-5 This utility model provides a technical solution:

[0024] A sealed dustproof idler wheel includes a wheel assembly 1 and an assembly assembly 2. The assembly assembly 2 is disposed inside the wheel assembly 1. The wheel assembly 1 includes a wheel shell 11, a wheel cover 12, a V-shaped sealing ring 13, a reinforcing sealing ring 14, a bearing component 15, and an O-ring 16. Two wheel covers 12 are symmetrically distributed on the left and right sides of the wheel shell 11. The V-shaped sealing ring 13 and the reinforcing sealing ring 14 are disposed between the wheel shell 11 and the wheel cover 12. The bearing component 15 is installed between the wheel shell 11 and the wheel cover 12. The O-ring 16 is installed inside the wheel cover 12.

[0025] The wheel cover 12 is equipped with an assembly component 2, which includes a shaft 21, a threaded block 22, a pressure cap 23, a silicone sealing ring 24, and a screw cap 25. Two threaded blocks 22 are symmetrically fixedly arranged on the left and right ends of the shaft 21, and two pressure caps 23 are symmetrically installed on the outer side of the left and right ends of the shaft 21. The silicone sealing ring 24 is installed in the inner groove of the pressure cap 23, and the screw cap 25 is threadedly installed on the threaded block 22. Through the above arrangement, a combined assembly component 2 is formed.

[0026] The shaft 21 is slidably installed on the outside of the wheel cover 12 and inside the O-ring 16. Through the above arrangement, the O-ring 16 plays a sliding sealing role for the shaft 21.

[0027] The bearing component 15 is assembled from the bearing outer ring, the bearing inner ring, the cage, and the bearing balls. With the above arrangement, the bearing component 15 is installed between the inner sides of the wheel housing 11 and the wheel cover 12.

[0028] The inner groove of the screw cap 25 is in close contact with the silicone sealing ring 24. Through the above arrangement, the screw cap 25 serves to fasten and limit the internal components of the wheel assembly 1 and the assembly assembly 2.

[0029] The outer ring of the bearing component 15 is in contact with the V-shaped seal ring 13 and the inner wall of the wheel housing 11, and the inner ring of the bearing component 15 is in contact with the inner side of the wheel cover 12. The above arrangement is used to perform clamping and placement of the bearing component 15.

[0030] Work process: This utility model provides a sealed and dustproof idler wheel. The wheel body assembly 1 of the idler wheel has a good sealing and dustproof effect, and the wheel body assembly 1 and the assembly assembly 2 of the idler wheel can be easily combined and installed.

[0031] First, the wheel assembly 1 is assembled and installed. The outer side of the wheel housing 11 has toothed grooves for meshing with the gear assembly of the external transmission system. A bearing 15 is installed inside the wheel housing 11. A V-shaped seal 13 and a reinforcing seal 14 are installed along the edge contour of the wheel housing 11. Then, the inner groove of the wheel cover 12 is fitted with the V-shaped seal 13 and the reinforcing seal 14, so that the outer ring of the bearing 15 is in contact with the V-shaped seal 13 and the inner wall of the wheel housing 11, and the inner ring of the bearing 15 is in contact with the inner side of the wheel cover 12. The inner side of the wheel cover 12... The shaft 21 is slidably installed on the outside of the wheel cover 12 and inside the O-ring 16. Two pressure caps 23 are respectively installed on the outside of the left and right ends of the shaft 21. Two silicone seals 24 are respectively installed in the inner groove of the pressure caps 23. The screw cap 25 is threadedly installed on the threaded block 22 until the inner groove of the screw cap 25 is in contact with the silicone seal 24. After installation, the V-ring 13, the reinforcing seal 14 and the O-ring 16 form a good sealing and dustproof effect for the bearing component 15.

[0032] Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealed, dustproof idler wheel, comprising a wheel body assembly (1) and an assembly assembly (2), characterized in that: The wheel assembly (1) is provided with an assembly assembly (2) inside. The wheel assembly (1) includes a wheel shell (11), a wheel cover (12), a V-shaped seal ring (13), a reinforcing seal ring (14), a bearing component (15), and an O-ring seal ring (16). Two wheel covers (12) are symmetrically distributed on the left and right sides of the wheel shell (11). A V-shaped seal ring (13) and a reinforcing seal ring (14) are provided between the wheel shell (11) and the wheel cover (12). A bearing component (15) is installed between the wheel shell (11) and the wheel cover (12). An O-ring seal ring (16) is installed inside the wheel cover (12).

2. The sealed dustproof idler wheel according to claim 1, characterized in that: The wheel cover (12) is provided with an assembly assembly (2), which includes a shaft (21), a threaded block (22), a pressure cap (23), a silicone sealing ring (24), and a screw cap (25). Two threaded blocks (22) are symmetrically distributed and fixedly arranged on the left and right ends of the shaft (21). Two pressure caps (23) are symmetrically distributed and installed on the outer side of the left and right ends of the shaft (21). A silicone sealing ring (24) is installed in the inner groove of the pressure cap (23). A screw cap (25) is threadedly installed on the threaded block (22).

3. The sealed dustproof idler wheel according to claim 2, characterized in that: The shaft (21) is slidably installed on the outside of the wheel cover (12) and inside the O-ring seal (16).

4. The sealed dustproof idler wheel according to claim 1, characterized in that: The bearing component (15) is assembled from the outer ring, inner ring, cage and bearing balls.

5. The sealed dustproof idler wheel according to claim 2, characterized in that: The inner groove of the screw cap (25) is in contact with the silicone sealing ring (24).

6. The sealed dustproof idler wheel according to claim 4, characterized in that: The outer ring of the bearing component (15) is in contact with the V-shaped seal ring (13) and the inner wall of the wheel housing (11), and the inner ring of the bearing component (15) is in contact with the inner side of the wheel cover (12).

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