A sealed drive shaft sleeve

CN224729936UActive Publication Date: 2026-09-08TAWO ENGINEERING MACHINERY (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202521685220.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-08
Publication Date
2026-09-08
Estimated Expiration
2035-08-08

AI Technical Summary

Technical Problem

[0006]鉴于上述现有技术中存在无法简便地添加润滑油,整个过程工序繁琐,给用户带来不便问题

Benefits of technology

1、本实用新型通过加油分流槽将加入的润滑油均匀分散在轴套主体内部,从而均匀地对传动轴表面添加润滑油,减少摩擦对传动轴和轴套主体的损耗,通过固定柱与固定槽的配合,可以将加油盖安装在加油口内部,防止润滑油从加油口处泄漏。

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Abstract

The utility model relates to the technical field of building high altitude construction, specifically is a sealed transmission shaft sleeve, including the shaft sleeve body, the inside and surface of shaft sleeve body are used for adding lubricating oil together and install oiling assembly, the oiling assembly includes the oiling opening of setting in the side of shaft sleeve body, the top end detachable installation of oiling opening has the oiling cover, the below of oiling opening is located the inside of shaft sleeve body and is opened and has the oiling shunt groove, the below of oiling shunt groove is opened and has the oiling injection groove. The utility model adds the lubricating oil even dispersion in the inside of shaft sleeve main part through the oiling shunt groove, thereby even to transmission shaft surface adds lubricating oil, reduces the loss of friction to transmission shaft and shaft sleeve main part, through the cooperation of fixed post and fixed groove, can install the oiling cover in the inside of oiling opening, prevents lubricating oil from leaking from the oiling opening.
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Description

Technical Field

[0001] This utility model relates to the field of high-altitude construction technology, specifically a sealed transmission shaft sleeve. Background Technology

[0002] A sealed drive shaft sleeve is essentially a specially designed mechanical coupling or shaft connector. Its core function is to effectively seal the opening through which the drive shaft passes through the equipment housing while transmitting torque, preventing contaminants from entering the equipment and preventing internal lubricant from leaking out.

[0003] A search revealed a bushing for a transmission shaft, publication number CN208474329U. The bushing includes a bushing body with two inclined end faces. A cross-section is provided on the outer wall of the bushing body, and multiple arc-shaped protrusions are provided on the inner wall of the bushing body. Each arc-shaped protrusion has a through hole, the axis of which is parallel to the axis of the bushing body. This bushing is easy to install and position, and can effectively dissipate heat generated during friction between the transmission shaft and the bushing.

[0004] The aforementioned technical solution provides a drive shaft bushing that is easy to install and position, and can also effectively release the heat generated during the friction between the drive shaft and the bushing. However, this method does not allow for easy addition of lubricating oil, and the entire process is cumbersome, causing inconvenience to users. Therefore, we provide a sealed drive shaft bushing. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has the problem of not being able to easily add lubricating oil, and that the whole process is cumbersome, causing inconvenience to users.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A sealed transmission bushing includes a bushing body, wherein a lubrication assembly for adding lubricating oil is installed both inside and on the surface of the bushing body, and the lubrication assembly includes a lubrication port opened on the side of the bushing body. A detachable oil filler cap is installed at the top of the oil filler port. An oil diversion groove is provided below the oil filler port inside the bushing body, and an oil injection groove is provided below the oil diversion groove.

[0008] As a further embodiment of this utility model: a fixing cover assembly is installed on the surface of the bushing body and the filler cap together. The fixing cover assembly includes a rotating block fixedly installed on the top of the filler cap, and a fixing wall is fixedly installed on the bottom of the filler cap.

[0009] As a further embodiment of this utility model: a fixing groove is provided inside the fixing wall, a moving groove is provided inside the fixing wall, and a fixing column is fixedly installed inside the bushing body located inside the fixing groove.

[0010] As a further embodiment of this utility model: a sealing assembly is installed on the surface of the bushing body. The sealing assembly includes a sealing ring that is detachably installed on the top of the bushing body below the oil filler cap. A limiting groove is opened inside the bushing body. A fixing metal block is fixedly installed inside the limiting groove. A lip-shaped rubber ring is fixedly installed on the side of the fixing metal block.

[0011] As a further embodiment of this utility model: a rotating component is installed inside the bushing body, the rotating component includes a rotating block fixedly installed on the inner side wall of the bushing body, and a transmission shaft is detachably installed inside the bushing body.

[0012] As a further embodiment of this utility model: a rotation limiting block is fixedly installed on the surface of the transmission shaft, and a rotation limiting groove is formed on the surface of the rotation limiting block below the rotating block.

[0013] As a further embodiment of this utility model: a connecting component is installed on the outer side of the bushing body, the connecting component including a first connecting ring fixedly installed at one end of the bushing body, and a second connecting ring fixedly installed at the other end of the bushing body.

[0014] As a further improvement of this utility model: the first connecting ring and the second connecting ring have a common screw groove inside, and a fixing screw can be detachably installed inside the screw groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses an oil distribution groove to evenly disperse the added lubricating oil inside the bushing body, thereby uniformly adding lubricating oil to the surface of the transmission shaft, reducing frictional wear on the transmission shaft and bushing body. Through the cooperation of the fixing column and the fixing groove, the oil filling cap can be installed inside the oil filling port to prevent lubricating oil from leaking from the oil filling port.

[0016] 2. This utility model prevents lubricating oil from leaking from the filler port by using a sealing ring. The lip-shaped rubber ring can form a dynamic sealing ring to prevent contaminants from entering and lubricating oil from leaking. The cooperation between the rotating limit block and the rotating block can transmit torque. The cooperation between the fixing screw and the screw groove can connect and install multiple bushing bodies. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a sealed transmission shaft sleeve; Figure 2 This is a schematic diagram of the internal structure of a sealed transmission shaft sleeve; Figure 3 A schematic diagram of a fixed cover assembly for a sealed transmission shaft sleeve; Figure 4 A schematic diagram of a rotating assembly structure for a sealed transmission shaft sleeve; Figure 5 A schematic diagram of a connection assembly for a sealed transmission shaft sleeve; In the diagram: 1. Bushing body; 2. Oil filling assembly; 21. Oil filling port; 22. Oil filling cap; 23. Oil filling diversion groove; 24. Oil filling injection groove; 3. Fixed cap assembly; 31. Rotating block; 32. Fixed wall; 33. Fixed groove; 34. Moving groove; 35. Fixed column; 4. Sealing assembly; 41. Sealing ring; 42. Limiting groove; 43. Fixed metal block; 44. Lip rubber ring; 5. Rotating assembly; 51. Drive shaft; 52. Rotating limiting block; 53. Rotating limiting groove; 54. Rotating block; 6. Connecting assembly; 61. First connecting ring; 62. Second connecting ring; 63. Screw groove; 64. Fixed screw. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0021] Example 1

[0022] Please see Figure 1 - Figure 3 This is the first embodiment of the present invention. This embodiment provides a sealed transmission bushing, including a bushing body 1. The inside and surface of the bushing body 1 are jointly installed with a lubrication component 2 for adding lubricating oil. The lubrication component 2 includes a lubrication port 21 opened on the side of the bushing body 1. A filler cap 22 is detachably installed on the top of the filler port 21. A filler diversion groove 23 is provided below the filler port 21 inside the bushing body 1. A filler injection groove 24 is provided below the filler diversion groove 23.

[0023] Specifically, a fixing cover assembly 3 is installed on the surface of the bushing body 1 and the filler cap 22. The fixing cover assembly 3 includes a rotating block 31 fixedly installed on the top of the filler cap 22, a fixing wall 32 fixedly installed on the bottom of the filler cap 22, a fixing groove 33 is opened inside the fixing wall 32, a moving groove 34 is opened inside the fixing wall 32, and a fixing column 35 is fixedly installed inside the bushing body 1 located inside the fixing groove 33.

[0024] Furthermore, by cooperating with the fixing post 35 and the fixing groove 33, the oil filler cap 22 can be installed inside the oil filler port 21 to prevent lubricating oil from leaking from the oil filler port 21.

[0025] In use, by rotating block 31, the oil filler cap 22 is moved, causing the fixed wall 32 below the oil filler cap 22 to rotate, thereby causing the fixed column 35 to disengage from the fixed groove 33 and move within the moving groove 34, so that the oil filler cap 22 is pulled out from inside the oil filler port 21, and lubricating oil is added through the oil filler port 21. The added lubricating oil is evenly distributed inside the bushing through the oil filling distribution groove 23, and injected into the bushing body 1 through the oil filling injection groove 24. After the lubricating oil is added, the oil filler cap 22 is installed inside the oil filler port 21.

[0026] In summary, the lubricating oil added is evenly distributed inside the bushing body 1 through the oil distribution groove 23, thereby evenly adding lubricating oil to the surface of the drive shaft 51, reducing frictional wear on the drive shaft 51 and the bushing body 1. Through the cooperation of the fixing column 35 and the fixing groove 33, the oil filling cap 22 can be installed inside the oil filling port 21 to prevent lubricating oil from leaking from the oil filling port 21.

[0027] Example 2

[0028] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 This is the second embodiment of the present utility model.

[0029] Specifically, a sealing component 4 is installed on the surface of the bushing body 1. The sealing component 4 includes a sealing ring 41 that is detachably installed on the top of the bushing body 1 below the oil filler cap 22. A limiting groove 42 is opened inside the bushing body 1. A fixing metal block 43 is fixedly installed inside the limiting groove 42. A lip-shaped rubber ring 44 is fixedly installed on the side of the fixing metal block 43.

[0030] Furthermore, the sealing ring 41 prevents lubricating oil from leaking from the filler neck 21, and the lip-shaped rubber ring 44 can form a dynamic sealing ring to prevent contaminants from entering and lubricating oil from leaking.

[0031] Specifically, a rotating component 5 is installed inside the bushing body 1. The rotating component 5 includes a rotating block 54 fixedly installed on the inner side wall of the bushing body 1. A drive shaft 51 is detachably installed inside the bushing body 1. A rotating limiting block 52 is fixedly installed on the surface of the drive shaft 51. A rotating limiting groove 53 is opened on the surface of the rotating limiting block 52 below the rotating block 54.

[0032] Furthermore, torque can be transmitted through the cooperation of the rotating limit block 52 and the rotating block 54.

[0033] Specifically, a connecting component 6 is installed on the outer side of the bushing body 1. The connecting component 6 includes a first connecting ring 61 fixedly installed at one end of the bushing body 1, and a second connecting ring 62 fixedly installed at the other end of the bushing body 1. The first connecting ring 61 and the second connecting ring 62 have a common screw groove 63 inside, and a fixing screw 64 is detachably installed inside the screw groove 63.

[0034] Furthermore, the engagement of the fixing screw 64 with the screw groove 63 allows multiple bushing bodies 1 to be connected and installed.

[0035] In use, the removable sealing ring 41 below the oil filler cap 22 prevents lubricating oil from leaking from the oil filler port 21. Align the rotation limiting groove 53 on the rotation limiting block 52 on the surface of the drive shaft 51 with the rotating block 54. Insert the lip-shaped rubber ring 44 into the bushing body 1 from inside the bushing body 1. The fixing metal block 43 in the limiting groove 42 inside the bushing body 1 fixes the lip-shaped rubber ring 44 to the surface of the drive shaft 51, sealing the bushing body 1 and preventing lubricating oil leakage. Align the first connecting ring 61 with the second connecting ring 62. Fix the fixing screw 64 inside the screw groove 63 and connect and install multiple bushing bodies 1.

[0036] In summary, the sealing ring 41 prevents lubricating oil from leaking from the filler port 21, the lip-shaped rubber ring 44 forms a dynamic sealing ring to prevent contaminants from entering and lubricating oil from leaking, the rotation limit block 52 and the rotation block 54 cooperate to transmit torque, and the fixing screw 64 and the screw groove 63 cooperate to connect and install multiple bushing bodies 1.

[0037] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0038] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0039] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sealed drive shaft boot, comprising: The bushing body (1) is characterized in that: the inside and the surface of the bushing body (1) are jointly equipped with a lubrication component (2) for adding lubricating oil, and the lubrication component (2) includes a lubrication port (21) opened on the side of the bushing body (1). A filler cap (22) is detachably installed at the top of the filler port (21). A filler diversion groove (23) is provided below the filler port (21) inside the bushing body (1). A filler injection groove (24) is provided below the filler diversion groove (23). The bushing body (1) and the oil filler cap (22) are jointly equipped with a fixing cap assembly (3). The fixing cap assembly (3) includes a rotating block (31) fixedly installed at the top of the oil filler cap (22). A fixing wall (32) is fixedly installed at the bottom of the oil filler cap (22). A fixing groove (33) is opened inside the fixing wall (32). A moving groove (34) is opened inside the fixing wall (32). A fixing column (35) is fixedly installed inside the bushing body (1) located inside the fixing groove (33). A sealing assembly (4) is installed on the surface of the bushing body (1). The sealing assembly (4) includes a sealing ring (41) that is detachably installed on the top of the bushing body (1) below the oil filler cap (22). A limiting groove (42) is opened inside the bushing body (1). A fixing metal block (43) is fixedly installed inside the limiting groove (42). A lip-shaped rubber ring (44) is fixedly installed on the side of the fixing metal block (43).

2. A sealed drive shaft boot according to claim 1, wherein: The bushing body (1) is equipped with a rotating component (5), which includes a rotating block (54) fixedly installed on the inner side wall of the bushing body (1). The bushing body (1) is also equipped with a detachable drive shaft (51).

3. A sealed drive shaft boot according to claim 2, wherein: A rotation limiting block (52) is fixedly installed on the surface of the drive shaft (51), and a rotation limiting groove (53) is opened on the surface of the rotation limiting block (52) below the rotating block (54).

4. A sealed transmission shaft sleeve according to claim 1, characterized in that: A connecting component (6) is installed on the outside of the bushing body (1). The connecting component (6) includes a first connecting ring (61) fixedly installed at one end of the bushing body (1) and a second connecting ring (62) fixedly installed at the other end of the bushing body (1).

5. A sealed transmission shaft sleeve according to claim 4, characterized in that: The first connecting ring (61) and the second connecting ring (62) have a common screw groove (63) inside, and a fixing screw (64) can be detachably installed inside the screw groove (63).

Citation Information

Patent Citations

  • Axle sleeve for transmission shaft

    CN208474329U