CN220910277U

CN220910277U - Spline shaft dust cover

Info

Publication number: CN220910277U
Application number: CN202322786794.6U
Authority: CN
Inventors: 郭雨蝶
Original assignee: Zhejiang Xiangyu Machinery Co ltd
Current assignee: Zhejiang Xiangyu Machinery Co ltd
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2024-05-07
Anticipated expiration: 2033-10-17

Abstract

The utility model relates to the technical field of dustproof covers, in particular to a spline shaft dustproof cover which comprises a dustproof assembly, wherein the dustproof assembly comprises a shaft body, spline grooves are formed in the outer side wall of the shaft body, spline covers are sleeved on the outer side wall of the spline grooves, dustproof cover shells are arranged on two sides of the outer side wall of the spline covers, accommodating grooves are formed in the inner side walls of the dustproof cover shells, and dustproof rubber strips are uniformly arranged in the accommodating grooves. The dustproof rubber strip is pushed to be attached to the spline groove under the action of the elasticity of the spring, dust and dirt outside the spline sleeve are blocked, the elastic force of the spring enables the dustproof rubber strip to have a telescopic function, excessive friction force cannot be generated to influence the movement of the spline sleeve when the spline sleeve slides, dust and dirt are blocked by the dustproof rubber strip, dust and dirt in the external environment are prevented from entering the spline sleeve to influence the working performance of the spline sleeve, and the dustproof function of the spline shaft is effectively improved.

Description

Spline shaft dust cover

Technical Field

The utility model relates to the technical field of dust covers, in particular to a spline shaft dust cover.

Background

The spline shaft has the same function as the flat key, the semicircular key and the wedge key, and is used for transmitting mechanical torque, the outer surface of the shaft is provided with a longitudinal key groove, a rotating piece sleeved on the shaft is also provided with a corresponding key groove, the rotating piece can keep synchronous rotation with the shaft, and the spline shaft can also longitudinally slide on the shaft while rotating, such as a gear box gear shifting gear and the like;

when the spline shaft works, pollutants such as dust, dirt and the like in the external environment easily enter the rotating part of the spline shaft to influence the working performance of the spline shaft, so how to improve the dustproof function of the spline shaft is one of the problems to be solved in the use process of the spline shaft at present; for this purpose, a dust boot for a spline shaft is proposed.

Disclosure of utility model

The utility model aims to provide a spline shaft dustproof sleeve to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a spline shaft dirt proof boot, includes dustproof subassembly, dustproof subassembly includes the axis body, the lateral wall of axis body is equipped with the spline groove, the lateral wall cover of spline groove is equipped with the spline housing, the lateral wall both sides of spline housing all are equipped with the dirt proof boot casing, the holding tank has been seted up to the inside wall of dirt proof boot casing, the inside of holding tank evenly is equipped with dustproof rubber strip, dustproof rubber strip's lateral wall with evenly install the spring between the inside wall of holding tank.

As a further preferred aspect of the present invention: and a sliding plate is arranged in the middle of the outer side wall of the dustproof rubber strip.

As a further preferred aspect of the present invention: the inner side wall of the accommodating groove is uniformly provided with a sliding groove, and the outer side wall of the sliding plate is connected to the inner side wall of the sliding groove in a sliding way.

As a further preferred aspect of the present invention: two jacks are symmetrically arranged on the outer side wall of the dustproof sleeve shell, a threaded rod is inserted into the inner side wall of each jack, two threaded holes are symmetrically arranged on two sides of the outer side wall of the spline sleeve, and the threaded holes are in threaded connection with the threaded rods.

As a further preferred aspect of the present invention: one end of the threaded rod, which is far away from the dustproof sleeve shell, is welded with a circular plate, and one side of the circular plate, which is far away from the threaded rod, is welded with a knob.

As a further preferred aspect of the present invention: and a gasket is arranged on one side of the outer side wall of the threaded rod, which is close to the circular plate.

As a further preferred aspect of the present invention: the inner diameter of the insertion hole is slightly larger than the outer diameter of the threaded rod.

Compared with the prior art, the utility model has the beneficial effects that:

The dustproof rubber strip is pushed to be attached to the spline groove under the action of the elasticity of the spring, dust and dirt outside the spline sleeve are blocked, the elastic force of the spring enables the dustproof rubber strip to have a telescopic function, excessive friction force cannot be generated to influence the movement of the spline sleeve when the spline sleeve slides, dust and dirt are blocked by the dustproof rubber strip, dust and dirt in the external environment are prevented from entering the spline sleeve to influence the working performance of the spline sleeve, and the dustproof function of the spline shaft is effectively improved.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic cross-sectional view of a dust-proof component according to the present utility model;

FIG. 3 is a schematic view of the structure of the dustproof rubber strip and the spring in the utility model;

FIG. 4 is a schematic illustration of the spline grooves and spline housing of the present utility model;

FIG. 5 is a schematic cross-sectional view of another view of a partial dust assembly of the present utility model;

FIG. 6 is an enlarged view of the structure of area A of FIG. 5 in accordance with the present utility model;

FIG. 7 is a schematic view of a disk and a spacer according to the present utility model.

In the figure: 10. a dust-proof assembly; 11. a shaft body; 12. spline grooves; 13. a spline housing; 14. a dust-proof cover housing; 15. a receiving groove; 16. a dustproof rubber strip; 17. a spring; 18. a slide plate; 19. a chute; 110. a jack; 111. a threaded rod; 112. a threaded hole; 113. a circular plate; 114. a knob; 115. a gasket.

Detailed Description

Technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the scope of protection of the present utility model.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-7, the present utility model provides a technical solution: the utility model provides a spline shaft dust cover, includes dustproof subassembly 10, dustproof subassembly 10 includes axis body 11, and the lateral wall of axis body 11 is equipped with spline groove 12, and spline groove 12's lateral wall cover is equipped with spline housing 13, and spline housing 13's lateral wall both sides all are equipped with dust cover casing 14, and holding tank 15 has been seted up to the inside wall of dust cover casing 14, and holding tank 15's inside evenly is equipped with dustproof rubber strip 16, evenly installs spring 17 between the lateral wall of dustproof rubber strip 16 and the inside wall of holding tank 15; the dustproof rubber strip 16 is pushed to be attached to the spline groove 12 under the action of the elasticity of the spring 17, dust and dirt outside the spline sleeve 13 are blocked, the elasticity of the spring 17 enables the dustproof rubber strip 16 to have a telescopic function, excessive friction force cannot be generated to influence movement of the spline sleeve 13 when the spline sleeve 13 slides, dust and dirt are intercepted by the dustproof rubber strip 16, and dust and dirt in the external environment are prevented from entering the spline sleeve 13 to influence the working performance of the spline sleeve.

In this embodiment, specific: a sliding plate 18 is arranged in the middle of the outer side wall of the dustproof rubber strip 16; facilitating the synchronous movement of the slide 18 and the dust rubber strip 16.

In this embodiment, specific: the inner side wall of the accommodating groove 15 is uniformly provided with a sliding groove 19, and the outer side wall of the sliding plate 18 is connected to the inner side wall of the sliding groove 19 in a sliding way; the slide 18 provides guidance for the dust rubber strip 16 as the inner side walls of the chute 19 slide.

In this embodiment, specific: two insertion holes 110 are symmetrically formed in the outer side wall of the dustproof sleeve shell 14, a threaded rod 111 is inserted into the inner side wall of the insertion hole 110, two threaded holes 112 are symmetrically formed in two sides of the outer side wall of the spline sleeve 13, and the threaded holes 112 are in threaded connection with the threaded rod 111; when the threaded rod 111 is rotated clockwise, the threaded rod 111 moves in a direction into the threaded hole 112, and when the threaded rod 111 is rotated counterclockwise, the threaded rod 111 moves in a direction out of the threaded hole 112.

In this embodiment, specific: a circular plate 113 is welded at one end of the threaded rod 111 far away from the dust-proof cover shell 14, and a knob 114 is welded at one side of the circular plate 113 far away from the threaded rod 111; the knob 114 is rotated clockwise to drive the circular plate 113 and the threaded rod 111 to rotate clockwise, so that the threaded rod 111 penetrates into the threaded hole 112, the circular plate 113 is used for fixing the dust-proof cover shell 14 in a pressing mode, the dust-proof cover shell 14 can be connected with the spline housing 13, and the dust-proof cover shell 14 can be taken down by unscrewing the threaded rod 111 in the same way.

In this embodiment, specific: a gasket 115 is arranged on one side of the outer side wall of the threaded rod 111, which is close to the circular plate 113; the provision of the spacer 115 reduces friction between the circular plate 113 and the dust cover housing 14, and reduces wear of the circular plate 113.

In this embodiment, specific: the inner diameter of the insertion hole 110 is slightly larger than the outer diameter of the threaded rod 111; facilitating insertion and removal of the threaded rod 111.

The working principle of the utility model is as follows: the knob 114 rotates clockwise to drive the circular plate 113 and the threaded rod 111 to rotate clockwise, the threaded rod 111 penetrates into the threaded hole 112, the circular plate 113 is used for extruding and fixing the dustproof sleeve shell 14, the dustproof sleeve shell 14 can be connected with the spline sleeve 13, the dustproof rubber strip 16 is pushed to be attached to the spline groove 12 under the action of the elastic force of the spring 17, dust and dirt outside the spline sleeve 13 are blocked, the elastic force of the spring 17 enables the dustproof rubber strip 16 to have a telescopic function, excessive friction force can not be generated when the spline sleeve 13 slides to influence the movement of the spline sleeve 13, the dustproof sleeve of the spline shaft is formed, dust and dirt in the external environment are prevented from entering the spline sleeve 13 to influence the working performance of the spline sleeve by means of interception of the dustproof rubber strip 16, and the dustproof function of the spline shaft is effectively improved.

Although embodiments of the present 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a spline shaft dirt proof boot, includes dustproof subassembly (10), its characterized in that: dustproof subassembly (10) including axis body (11), the lateral wall of axis body (11) is equipped with spline groove (12), the lateral wall cover of spline groove (12) is equipped with spline housing (13), the lateral wall both sides of spline housing (13) all are equipped with dirt proof boot casing (14), holding tank (15) have been seted up to the inside wall of dirt proof boot casing (14), the inside of holding tank (15) evenly is equipped with dustproof rubber strip (16), dustproof rubber strip (16) lateral wall with evenly install spring (17) between the inside wall of holding tank (15).

2. The spline shaft dust cover according to claim 1, wherein: and a sliding plate (18) is arranged in the middle of the outer side wall of the dustproof rubber strip (16).

3. The spline shaft dust cover according to claim 2, wherein: the inner side wall of the accommodating groove (15) is uniformly provided with a sliding groove (19), and the outer side wall of the sliding plate (18) is connected to the inner side wall of the sliding groove (19) in a sliding way.

4. The spline shaft dust cover according to claim 1, wherein: two jacks (110) are symmetrically arranged on the outer side wall of the dustproof sleeve shell (14), threaded rods (111) are inserted into the inner side walls of the jacks (110), two threaded holes (112) are symmetrically arranged on the two sides of the outer side wall of the spline housing (13), and the threaded holes (112) are in threaded connection with the threaded rods (111).

5. The spline shaft dust cover as set forth in claim 4, wherein: one end of the threaded rod (111) far away from the dustproof cover shell (14) is welded with a circular plate (113), and one side of the circular plate (113) far away from the threaded rod (111) is welded with a knob (114).

6. The spline shaft dust cover as set forth in claim 5, wherein: a gasket (115) is arranged on one side, close to the circular plate (113), of the outer side wall of the threaded rod (111).

7. The spline shaft dust cover as set forth in claim 4, wherein: the inner diameter of the insertion hole (110) is slightly larger than the outer diameter of the threaded rod (111).