CN221195783U - Sliding sleeve type axial bearing protection device - Google Patents
Sliding sleeve type axial bearing protection device Download PDFInfo
- Publication number
- CN221195783U CN221195783U CN202323151934.9U CN202323151934U CN221195783U CN 221195783 U CN221195783 U CN 221195783U CN 202323151934 U CN202323151934 U CN 202323151934U CN 221195783 U CN221195783 U CN 221195783U
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- CN
- China
- Prior art keywords
- bearing
- oil seal
- sliding sleeve
- wear
- matched
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 11
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 11
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a sliding sleeve type axial bearing protection device which can prevent a bearing from being damaged by axial force. The bearing comprises a bearing seat which is arranged on a side plate of a shell, wherein a guide groove which is parallel to the central line of the bearing seat is arranged in the bearing seat, a bearing sliding sleeve is coaxially sleeved in the bearing seat in a clearance fit way, a positioning key which is matched with the guide groove is arranged on the outer surface of the bearing sliding sleeve, and the bearing sliding sleeve axially slides along the bearing seat through the positioning key; the bearing sliding sleeve is internally matched with a working bearing, the rotating shafts on two sides of the bearing are respectively matched with and sleeved with an outer wear-resistant sleeve and an inner wear-resistant sleeve, an outer oil seal cover and an inner oil seal cover are respectively arranged on the inner end face and the outer end face of a shell side plate outside the periphery of the wear-resistant sleeve, the inner periphery of the oil seal cover is respectively provided with an oil seal groove, and a polytetrafluoroethylene oil seal is matched and sleeved in the oil seal grooves.
Description
Technical Field
The utility model relates to a sliding sleeve type axial bearing protection device.
Background
Under the working conditions of high rotating speed, alternating load and large dust, the traditional axial bearing has the problem of damage caused by insufficient structural stability of a shell or axial dimensional change of a bearing seat mounting position due to external force, and sometimes has great negative influence on production.
Disclosure of Invention
The utility model aims to provide a sliding sleeve type axial bearing protection device which can improve the stability of an axial bearing and prevent the bearing from being damaged due to axial external force.
The utility model aims at realizing the aim, the sliding sleeve type axial bearing protection device comprises a bearing seat arranged on a side plate of a shell, wherein a guide groove parallel to the central line of the bearing seat is arranged in the bearing seat, a bearing sliding sleeve is coaxially sleeved in the bearing seat in a clearance fit manner, a positioning key matched with the guide groove is arranged on the outer surface of the bearing sliding sleeve, and the bearing sliding sleeve axially slides along the bearing seat through the positioning key; the bearing sliding sleeve is internally matched with a working bearing, the rotating shafts on two sides of the bearing are respectively matched with and sleeved with an outer wear-resistant sleeve and an inner wear-resistant sleeve, an outer oil seal cover and an inner oil seal cover are respectively arranged on the inner end face and the outer end face of a shell side plate outside the periphery of the wear-resistant sleeve, the inner periphery of the oil seal cover is respectively provided with an oil seal groove, and a polytetrafluoroethylene oil seal is matched and sleeved in the oil seal grooves.
The wear-resistant sleeve is a bearing steel wear-resistant sleeve; the polytetrafluoroethylene oil seal is a positive and negative double-lip polytetrafluoroethylene oil seal.
When the device is used, the device is fixed on the left and right shell side plates through bolts, the right end is a fixed end, and the left end is an adjusting sliding end; the polytetrafluoroethylene oil seal has the characteristics of heat resistance, wear resistance, small friction force and the like, and the combined assembly of the shaft roller, the outer wear-resistant sleeve and the inner wear-resistant sleeve ensures that the bearing has a good dust-free working cavity environment when running at a high speed, and dust is difficult to enter the working cavity of the working bearing; the bearing seat is provided with a key-type chute parallel to the axial direction of the shaft, the bearing sliding sleeve is provided with a positioning key slot, the bearing sliding sleeve is in clearance fit with the bearing seat, and the axial direction of the bearing can not be subjected to axial force under the conditions that the left shell side plate and the right shell side plate are not deformed and the working load is stable, so that the working state of the mechanical transmission mechanism is the optimal ideal state; if the device has deformation, load unstability, when the dust is great about the casing curb plate, the axial force that bearing sliding sleeve and bearing frame pass through the key with the casing curb plate deformation produces is got rid of automatically in reserving the sliding range, plays the guard action to the bearing, and the bearing does not have axial force influence this moment, only has radial atress condition, has avoided the bearing to burn out, has improved the life of bearing greatly to the work efficiency of machine has been improved, maintenance time and cost of maintenance have been reduced, lubricating grease can be supplied with for the bearing working chamber through the oil filler point on the bearing frame as required.
Drawings
Fig. 1 is a schematic view of a front view in cross section.
Description of the embodiments
A kind of slide sleeve type axial bearing protective device, as shown in figure 1, include a bearing block 6 mounted on a side plate 5 of the body, there is a guide slot parallel to central line of the bearing block in the said bearing block 6, there is a bearing slide sleeve 4 in the bearing block 6 to be the coaxial suit of clearance fit, there is a locating key cooperating with said guide slot on the external surface of the bearing slide sleeve 4, the bearing slide sleeve slides axially along the bearing block through the locating key; the guiding and sliding structure of the key and the groove belongs to the prior art and needs no repeated description. The working bearing 3 is arranged in the bearing sliding sleeve 4 in a matched manner, the outer wear-resistant sleeve 10 and the inner wear-resistant sleeve 11 are respectively sleeved on the rotating shafts on two sides of the bearing 3 in a matched manner, the outer oil seal cover 2 and the inner oil seal cover 7 are respectively arranged on the inner end face and the outer end face of the side plate of the shell outside the peripheries of the wear-resistant sleeves 10 and 11, the oil seal grooves are respectively arranged at the inner peripheries of the oil seal covers 2 and 7, and the polytetrafluoroethylene oil seal 12 is sleeved in the oil seal grooves in a matched manner.
The wear-resistant sleeves 10 and 11 are bearing steel wear-resistant sleeves; the polytetrafluoroethylene oil seal 12 is a polytetrafluoroethylene oil seal with positive and negative double lips.
When the utility model is used, the assembly is carried out according to the attached figure 1, one end of the shaft roller 8 is a fixed end, and a fixed end cover 9 is arranged; the other side of the shaft roller 8 is an adjusting end, and a belt pulley 1 is arranged.
Claims (2)
1. The utility model provides a sliding sleeve type axial bearing protection device, includes a bearing frame of being installed on a curb plate of casing, characterized by: a guide groove parallel to the central line of the bearing seat is arranged in the bearing seat, a bearing sliding sleeve is coaxially sleeved in the bearing seat in clearance fit, a positioning key matched with the guide groove is arranged on the outer surface of the bearing sliding sleeve, and the bearing sliding sleeve axially slides along the bearing seat through the positioning key; the bearing sliding sleeve is internally matched with a working bearing, the rotating shafts on two sides of the bearing are respectively matched with and sleeved with an outer wear-resistant sleeve and an inner wear-resistant sleeve, an outer oil seal cover and an inner oil seal cover are respectively arranged on the inner end face and the outer end face of a shell side plate outside the periphery of the wear-resistant sleeve, the inner periphery of the oil seal cover is respectively provided with an oil seal groove, and a polytetrafluoroethylene oil seal is matched and sleeved in the oil seal grooves.
2. A sliding sleeve axial bearing protection device according to claim 1, characterized in that: the wear-resistant sleeve is a bearing steel wear-resistant sleeve; the polytetrafluoroethylene oil seal is a positive and negative double-lip polytetrafluoroethylene oil seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323151934.9U CN221195783U (en) | 2023-11-22 | 2023-11-22 | Sliding sleeve type axial bearing protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323151934.9U CN221195783U (en) | 2023-11-22 | 2023-11-22 | Sliding sleeve type axial bearing protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221195783U true CN221195783U (en) | 2024-06-21 |
Family
ID=91522756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323151934.9U Active CN221195783U (en) | 2023-11-22 | 2023-11-22 | Sliding sleeve type axial bearing protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221195783U (en) |
-
2023
- 2023-11-22 CN CN202323151934.9U patent/CN221195783U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |