Shaft sleeve sealing mechanism

Abstract

The utility model relates to the technical field of shaft sleeves, in particular to a shaft sleeve sealing mechanism which not only facilitates replacement of lubricating oil in a shaft sleeve, but also is good in sealing effect and high in reliability and practicability. Comprising a shaft sleeve, the device further comprises an oil inlet pipe, a valve A, an oil discharge pipe and a valve B. The oil inlet pipe and the oil discharge pipe are installed on the upper portion and the lower portion of the shaft sleeve respectively and communicated with the cavity of the shaft sleeve, the valve A is arranged on the oil inlet pipe, the valve B is arranged on the oil discharge pipe, sealing devices are arranged on the left portion and the right portion of the shaft sleeve respectively, and the sealing devices have the sealing function.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeves, in particular to a shaft sleeve sealing mechanism. Background Art

[0002] A shaft sleeve is a component used to support a shaft and has a wide range of applications in the mechanical field. The shaft can rotate in the shaft sleeve. In the prior art, the utility model patent with the patent application number 201120029817.3 discloses a support shaft sleeve, which mainly includes a shaft sleeve body, a retaining ring, a flange, etc. In order to reduce the resistance when the shaft rotates in the shaft sleeve, lubricating oil is also added into the shaft sleeve. As the use time increases, the lubricating oil in the shaft sleeve will gradually decrease, so new lubricating oil needs to be replenished into the shaft sleeve regularly. However, the shaft sleeve in the above prior art is not convenient to add new lubricating oil into the shaft sleeve, resulting in inconvenient use and poor reliability. Summary of the Utility Model

[0003] To solve the above technical problems, the utility model provides a shaft sleeve sealing mechanism that not only facilitates the replacement of the lubricating oil in the shaft sleeve, but also has good sealing effect, high reliability and practicability.

[0004] The shaft sleeve sealing mechanism of the utility model includes a shaft sleeve, and a cavity is arranged in the shaft sleeve; it also includes an oil inlet pipe, valve A, an oil drain pipe and valve B. The oil inlet pipe and the oil drain pipe are respectively installed on the upper and lower parts of the shaft sleeve, and both the oil inlet pipe and the oil drain pipe are communicated with the chamber of the shaft sleeve. Valve A is arranged on the oil inlet pipe, and valve B is arranged on the oil drain pipe. Sealing devices are arranged on both the left and right parts of the shaft sleeve, and the sealing devices have the function of sealing; when in use, the middle part of the rotating shaft is assembled into the chamber of the shaft sleeve. When it is necessary to replace the lubricating oil in the chamber of the shaft sleeve, open valve B to discharge the lubricating oil in the chamber of the shaft sleeve through the oil drain pipe, then close valve B, open valve A, and then add new lubricating oil from the outside into the chamber of the shaft sleeve through valve A; it facilitates the replacement of the lubricating oil in the shaft sleeve and improves the convenience during use.

[0005] Preferably, the sealing device includes a sealing ring. A sealing circular groove is arranged at the end of the shaft sleeve, and the sealing ring is installed in the sealing circular groove; by arranging sealing rings on both the left and right parts of the shaft sleeve, the sealing effect on both the left and right parts of the shaft sleeve is improved, preventing the leakage of lubricating oil through both the left and right parts of the shaft sleeve and improving the reliability.

[0006] Preferably, it further includes two groups of sealing packing. Grooves are arranged on both the left and right parts of the chamber of the shaft sleeve, and sealing packing is arranged in both groups of grooves; when the rotating shaft rotates in the shaft sleeve, the rotating shaft contacts with the sealing packing, further improving the sealing effect between the rotating shaft and the shaft sleeve and reducing the leakage of lubricating oil.

[0007] Preferably, both the number of the sealing circular grooves and the sealing rings is multiple. Multiple groups of sealing circular grooves are provided on both the left and right parts of the bushing, and multiple sealing rings are respectively installed in the multiple sealing circular grooves.

[0008] Preferably, it further includes two mounting plates which are respectively installed on the left and right parts of the bushing, and multiple mounting holes are circumferentially provided on both of the two mounting plates; through the above settings, the connection between the bushing and the external bearing housing is facilitated, and the convenience is improved.

[0009] Preferably, multiple circular oil grooves are evenly arranged in the cavity of the bushing from left to right, and multiple strip-shaped grooves are circumferentially provided in the cavity of the bushing. The multiple strip-shaped grooves are all communicated with the multiple circular oil grooves; through the above settings, the lubricating oil added to the cavity of the bushing can be evenly distributed in the cavity of the bushing via the multiple strip-shaped grooves and the multiple circular oil grooves, and the uniformity of lubrication is improved.

[0010] Preferably, the bushing is made of stainless steel.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: it not only facilitates the replacement of the lubricating oil in the bushing, but also has good sealing effect, high reliability and practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the sectional structure schematic diagram of the present utility model;

[0013] Figure 2 is the first axonometric structure schematic diagram of the present utility model;

[0014] Figure 3 is the front sectional structure schematic diagram of the present utility model;

[0015] Figure 4 is the second axonometric structure schematic diagram of the present utility model;

[0016] Figure 5 is the front structure schematic diagram of the present utility model.

[0017] Reference numerals in the drawings: 1, bushing; 2, oil inlet pipe; 3, valve A; 4, oil drain pipe; 5, valve B; 6, sealing circular groove; 7, sealing ring; 8, groove; 9, sealing packing; 10, mounting plate; 11, mounting hole; 12, strip-shaped groove; 13, circular oil groove; 14, rotating shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0019] Example 1

[0020] As Figures 1 to 5 , the bushing sealing mechanism of the present utility model includes a bushing 1, an oil inlet pipe 2, a valve A 3, an oil drain pipe 4 and a valve B 5. A chamber is provided inside the bushing 1. The oil inlet pipe 2 and the oil drain pipe 4 are respectively installed on the upper and lower parts of the bushing 1. The oil inlet pipe 2 and the oil drain pipe 4 are both communicated with the chamber of the bushing 1. A valve A 3 is provided on the oil inlet pipe 2 and a valve B 5 is provided on the oil drain pipe 4. Sealing devices are provided on both the left and right parts of the bushing 1, and the sealing devices have the function of sealing; when in use, the middle part of the rotating shaft 14 is assembled into the chamber of the bushing 1. When it is necessary to replace the lubricating oil in the chamber of the bushing 1, the valve B 5 is opened to discharge the lubricating oil in the chamber of the bushing 1 through the oil drain pipe 4, and then the valve B 5 is closed and the valve A 3 is opened, and then the new external lubricating oil is added into the chamber of the bushing 1 through the valve A 3; it is convenient to replace the lubricating oil in the bushing 1 and improves the convenience during use.

[0021] As Figure 1 and Figure 3 , the sealing device includes a sealing ring 7. A sealing circular groove 6 is provided at the end of the bushing 1, and the sealing ring 7 is installed in the sealing circular groove 6; by providing the sealing rings 7 on both the left and right parts of the bushing 1, the sealing effect on both the left and right parts of the bushing 1 is improved, preventing the leakage of lubricating oil through both the left and right parts of the bushing 1 and improving the reliability.

[0022] Continue to refer to Figure 1 and Figure 3 , grooves 8 are provided on both the left and right parts of the chamber of the bushing 1, and sealing packing 9 is provided in the two groups of grooves 8; when the rotating shaft 14 rotates in the bushing 1, the rotating shaft 14 contacts the sealing packing 9, further improving the sealing effect between the rotating shaft 14 and the bushing 1 and reducing the leakage of lubricating oil.

[0023] Both the sealing circular groove 6 and the sealing ring 7 have multiple groups. Multiple groups of sealing circular grooves 6 are provided on both the left and right parts of the bushing 1, and multiple groups of sealing rings 7 are respectively installed in the multiple groups of sealing circular grooves 6.

[0024] As Figure 1 and Figure 4 , the two groups of mounting plates 10 are respectively installed on both the left and right parts of the bushing 1, and multiple groups of mounting holes 11 are circumferentially provided on the two groups of mounting plates 10; through the above settings, it is convenient to connect the bushing 1 with the external bearing seat and improves the convenience. The material of the bushing 1 is stainless steel.

[0025] Example 2

[0026] On the basis of Embodiment 1, a plurality of groups of circular oil grooves 13 are uniformly arranged in the chamber of the bushing 1 from left to right, and a plurality of groups of strip grooves 12 are arranged on the inner circumference of the chamber of the bushing 1. The plurality of groups of strip grooves 12 are all communicated with the plurality of groups of circular oil grooves 13. Through the above arrangement, the lubricating oil added to the chamber of the bushing 1 can be uniformly distributed in the chamber of the bushing 1 via the plurality of groups of strip grooves 12 and the plurality of groups of circular oil grooves 13, improving the uniformity of lubrication.

[0027] The sealing ring 7 and the sealing packing 9 of the bushing sealing mechanism of the present utility model are both purchased on the market. Those skilled in the art only need to install and operate according to the attached instruction manual, without the need for creative labor from those skilled in the art.

[0028] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in the technical field, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A bushing sealing mechanism, comprising a bushing (1), and a chamber is arranged inside the bushing (1); characterized in that, It also includes an inlet oil pipe (2), a valve A (3), an outlet oil pipe (4) and a valve B (5). The inlet oil pipe (2) and the outlet oil pipe (4) are respectively installed on the upper and lower parts of the bushing (1). The inlet oil pipe (2) and the outlet oil pipe (4) are both communicated with the chamber of the bushing (1). A valve A (3) is arranged on the inlet oil pipe (2), and a valve B (5) is arranged on the outlet oil pipe (4). Sealing devices are arranged on the left and right parts of the bushing (1), and the sealing devices have the function of sealing.

2. The bushing sealing mechanism according to claim 1, characterized in that, The sealing device includes a sealing ring (7). A sealing circular groove (6) is arranged at the end of the bushing (1), and the sealing ring (7) is installed in the sealing circular groove (6).

3. The bushing sealing mechanism according to claim 1, characterized in that, It also includes two groups of sealing packing (9). Grooves (8) are arranged on the left and right parts of the chamber of the bushing (1), and the two groups of sealing packing (9) are arranged in the two groups of grooves (8).

4. The bushing sealing mechanism according to claim 2, wherein, The number of the sealing circular grooves (6) and the sealing rings (7) are both multiple groups. Multiple groups of sealing circular grooves (6) are arranged on the left and right parts of the bushing (1), and multiple groups of sealing rings (7) are respectively installed in the multiple groups of sealing circular grooves (6).

5. The bushing sealing mechanism according to claim 1, wherein, It also includes two groups of mounting plates (10). The two groups of mounting plates (10) are respectively installed on the left and right parts of the bushing (1), and multiple groups of mounting holes (11) are arranged circumferentially on the two groups of mounting plates (10).

6. The bushing sealing mechanism according to claim 1, wherein Multiple groups of circular oil grooves (13) are evenly arranged in the chamber of the bushing (1) from left to right. Multiple groups of strip grooves (12) are arranged circumferentially in the chamber of the bushing (1), and the multiple groups of strip grooves (12) are all communicated with the multiple groups of circular oil grooves (13).

7. A bushing sealing mechanism according to claim 1, characterized in that, The material of the bushing (1) is stainless steel.

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