CN221170403U - Rotary connecting mechanism used in low-speed heavy-load state - Google Patents
Rotary connecting mechanism used in low-speed heavy-load state Download PDFInfo
- Publication number
- CN221170403U CN221170403U CN202323235743.0U CN202323235743U CN221170403U CN 221170403 U CN221170403 U CN 221170403U CN 202323235743 U CN202323235743 U CN 202323235743U CN 221170403 U CN221170403 U CN 221170403U
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- China
- Prior art keywords
- spacer sleeve
- low
- lubrication
- speed heavy
- outer ring
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- 230000007246 mechanism Effects 0.000 title claims abstract description 11
- 125000006850 spacer group Chemical group 0.000 claims abstract description 36
- 238000005461 lubrication Methods 0.000 claims abstract description 29
- 239000004519 grease Substances 0.000 abstract description 11
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a rotary connecting mechanism used in a low-speed heavy-load state, which belongs to the field of connection of rotary parts and comprises an inner shaft and an outer ring which are coaxially arranged, wherein a spacer sleeve is arranged between the inner shaft and the outer ring, lubrication holes are arranged on the side wall of the spacer sleeve in an array manner, a circulation groove on the outer side wall of the spacer sleeve is connected with adjacent lubrication holes, and a grease injection hole is arranged on the outer ring. The utility model aims to provide a rotary connecting mechanism used in a low-speed heavy-load state, which can improve the contact area to reduce the requirement on materials, further reduce the cost, and simultaneously facilitate lubrication to reduce abrasion and prolong the service life.
Description
Technical Field
The utility model relates to the field of connection of rotating parts, in particular to a rotating connection mechanism used in a low-speed heavy-load state.
Background
The rotating structural members in low-speed and heavy-load scenes such as gear boxes, heavy rolling gates and the like used in the wind power station are mostly installed by adopting bearings or pin shafts; however, under the working condition of low speed and heavy load, the rolling bearing is adopted to face the conditions of small contact area and overlarge contact stress value, so that higher requirements are put on bearing materials, and higher cost is also indicated along with the improvement of the material requirements; the pin shaft can obviously improve the contact area, but also has the problems of larger abrasion and service life reduction caused by poor lubrication conditions.
Disclosure of utility model
The utility model aims to solve the problems, and provides a rotary connecting mechanism used in a low-speed heavy-load state, which can improve the contact area to reduce the requirement on materials, further reduce the cost, and simultaneously facilitate lubrication to reduce abrasion and prolong the service life.
In order to achieve the above purpose, the technical scheme adopted by the utility model is that the rotary connecting mechanism for the low-speed heavy-load state comprises an inner shaft and an outer ring which are coaxially arranged, a spacer sleeve is arranged between the inner shaft and the outer ring, lubrication holes are arranged on the side wall of the spacer sleeve in an array manner, a circulation groove on the outer side wall of the spacer sleeve is connected with adjacent lubrication holes, and a grease injection hole communicated with the lubrication holes is arranged on the outer ring.
Further, to ensure uniform lubrication, the lubrication Kong Chengzu is provided with a flow channel connecting together the same set of lubrication holes.
Further, the lubrication holes of the same group are axially arranged along the spacer sleeve, and the circulation grooves are sequentially connected with the adjacent lubrication holes, so that the purpose of uniform lubrication is further achieved.
Furthermore, for installing the spacer sleeve, the spacer sleeve is fixedly connected with the inner shaft through the shaft end cover.
The utility model has the beneficial effects that: in the utility model, the outer ring and the spacer sleeve are in surface contact, so that the contact between the outer ring and the spacer sleeve is increased, and the requirement on materials is further reduced. Simultaneously, grease is injected between the spacer sleeve and the outer ring through the grease injection holes, and meanwhile, the grease injection holes are connected through the circulation grooves to assist in lubrication, so that compared with a pin hole structure, the wear can be remarkably reduced, and the service life is prolonged.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
FIG. 2 is a schematic view of a spacer sleeve structure.
The text labels in the figures are expressed as: 1. an inner shaft; 2. an outer ring; 3. a spacer sleeve; 4. a lubrication hole; 5. a flow channel; 6. injecting grease holes; 7. an end cover at the shaft end.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.
In the embodiment 1, as shown in fig. 1-2, the structure of the present embodiment is a rotary connection mechanism for a low-speed heavy-load state, and the rotary connection mechanism comprises an inner shaft 1 and an outer ring 2 coaxially arranged, the outer ring 2 comprises a rotating ring sleeved on the inner shaft 1 and a cover plate arranged on the end face of the rotating ring, the cover plate and the rotating ring are connected through bolts and the like, a spacer sleeve 3 is arranged between the rotating rings of the inner shaft 1 and the outer ring 2, the spacer sleeve 3 can be made of steel, copper or other metals or nylon, and considering that cold welding is easy to occur when the metal is in a low-speed heavy-load state, when the spacer sleeve 3 is made of metal materials, the surface of the spacer sleeve can be plated with chromium, the spacer sleeve 3 is fixedly connected with the inner shaft 1 through an end cover 7, the cover plate is locked on the outer side of the end cover 7, a clearance groove for accommodating the spacer sleeve 3 is arranged on the inner side wall of the rotating ring of the outer ring 2, a lubricating hole 4 is arranged on the outer side wall of the spacer sleeve 3 in an array, the lubricating hole 4 is arranged along the radial direction of the spacer sleeve 3, the circulating groove 5 on the outer side wall of the spacer sleeve 3 is connected with adjacent lubricating holes 4, and the circulating grooves 5 extend to the end faces of the two ends of the spacer sleeve 3. In this embodiment, the lubrication holes 4 are arranged in groups, the lubrication holes 4 in the same group are axially arranged along the spacer sleeve 3, and the circulation grooves 5 are sequentially connected with adjacent lubrication holes 4. The rotating ring of the outer ring 2 is provided with a grease injection hole 6.
The specific working state is as follows: grease is injected into the side of the spacer sleeve 3 through the grease injection hole 6 of the outer ring 2 to enter the lubrication holes 4, and uniformly enters different lubrication holes 4 along the circulation groove 5, meanwhile, the grease flows through the circulation groove 5 to cover more inner walls of the outer ring 2 as much as possible, so that when the outer ring 2 rotates, the grease in the lubrication holes 4 and the circulation groove 5 forms an oil film on the contact surface between the spacer sleeve 3 and the outer ring 2, and dry friction between the spacer sleeve 3 and the outer ring 2 is prevented, so that the service life is reduced. In the embodiment, under the working condition that the rotating speed of the outer ring 2 is below 20rpm and the load is above 1t, the running can be continued for 20000 hours.
When the coating on the spacer sleeve 3 is seriously worn or the spacer sleeve 3 is damaged due to accidents, the cover plate on the outer ring 2 is taken down, and then the shaft end cover 7 is taken down, so that the spacer sleeve 3 which needs to be replaced can be easily taken out.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that, due to the limited text expressions, there is virtually no limit to the specific structure, and that, for a person skilled in the art, modifications, alterations and combinations of these features may be made in a suitable manner without departing from the principles of the present utility model; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.
Claims (4)
1. The utility model provides a swivelling joint mechanism for under low-speed heavy load state, includes interior axle (1) and outer loop (2) of coaxial setting, a serial communication port, be provided with spacer sleeve (3) between interior axle (1) and outer loop (2), array is provided with lubrication hole (4) on spacer sleeve (3) lateral wall, adjacent lubrication hole (4) are connected in circulation groove (5) on spacer sleeve (3) lateral wall, be provided with on outer loop (2) annotate fat hole (6) with lubrication hole (4) intercommunication.
2. A rotary connection for low-speed heavy-duty situations according to claim 1, characterized in that the lubrication holes (4) are arranged in groups and the circulation grooves (5) connect together the same groups of lubrication holes.
3. A rotary connection mechanism for low-speed heavy-duty conditions according to claim 2, characterized in that the lubrication holes (4) of the same group are axially aligned along the spacer sleeve (3), and the circulation grooves (5) are connected in turn to adjacent lubrication holes (4).
4. A rotary connection for low-speed heavy-duty situations according to any of claims 1-3, characterized in that the spacer sleeve (3) is fixedly connected to the inner shaft (1) via the shaft end cap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323235743.0U CN221170403U (en) | 2023-11-29 | 2023-11-29 | Rotary connecting mechanism used in low-speed heavy-load state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323235743.0U CN221170403U (en) | 2023-11-29 | 2023-11-29 | Rotary connecting mechanism used in low-speed heavy-load state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221170403U true CN221170403U (en) | 2024-06-18 |
Family
ID=91534926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323235743.0U Active CN221170403U (en) | 2023-11-29 | 2023-11-29 | Rotary connecting mechanism used in low-speed heavy-load state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221170403U (en) |
-
2023
- 2023-11-29 CN CN202323235743.0U patent/CN221170403U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |