CN204628304U - A kind of anti-breaking tooth-like pivoting support - Google Patents
A kind of anti-breaking tooth-like pivoting support Download PDFInfo
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- CN204628304U CN204628304U CN201520300459.3U CN201520300459U CN204628304U CN 204628304 U CN204628304 U CN 204628304U CN 201520300459 U CN201520300459 U CN 201520300459U CN 204628304 U CN204628304 U CN 204628304U
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- ring
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- pivoting support
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- tooth
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Abstract
The utility model discloses a kind of anti-breaking tooth-like pivoting support, include outer ring and the inner ring of height arrangement straggly, be provided with ring raceway between described inner ring and the fitting surface of outer ring, in described ring raceway, be provided with the steel ball that multiple annularly bearing race distributes ringwise; It is characterized in that: the gear ring inwall of described inner ring being also provided with normal shift gradually, the top circle of described gear ring increases from bottom to top gradually, the transverse tooth thickness of described gear ring increases little from bottom to top gradually, when gear ring is engaged with meshing part small gear, backlash increases gradually from top to bottom, avoid meshing part small gear lower end be out of shape when stand under load tilt after to engage with gear ring upper compressive and cause broken teeth.By simply repairing type, substantially improve engagement.The utility model is rational in infrastructure, on the basis of original pivoting support, has only slightly changed original profile of tooth, does not have cost increase and easily realize, especially on digging machine pivoting support, greatly reduces tooth breaking rate.
Description
Technical field
The utility model relates to pivoting support field, is specifically related to a kind of for internal messing, the anti-breaking tooth-like pivoting support of Hardened gear face excavator.
Background technique
Pivoting support is turntable bearing again, also referred to as swivel bearing or convolution supporting.Pivoting support is applied very extensive in real industry, and being called as in " joint of machine ", is need between two articles to do relative rotation motion, needs again the necessary important transmission original paper of machinery simultaneously bearing axial force, axial force, tilting moment.Along with developing rapidly of machinery industry, pivoting support is widely applied in industries such as ship equipment, engineering machinery, light industry and machinery, metallurgical machinery, medical machinery, industrial robot, rock tunnel(ling) machine, playground equipments.
Ring raceway is provided with between the fitting surface of the inside and outside circle of pivoting support, mostly realize rotation motion by the ball be arranged in the ring raceway of circumference between the inside and outside circle of pivoting support, but often there is broken teeth phenomenon in the pivoting support of the internal messing used in the engineering machinery such as excavator, churning driven, crawler crane, Hardened gear face.
Model utility content
The purpose of this utility model is to provide the anti-breaking tooth-like pivoting support of a kind of excavator, what the difference maximum with standard type pivoting support was internal tooth repaiies type, by the internal tooth of pivoting support is carried out normal shift gradually from down to up from inner ring attachment face, improve the engagement in original carrying situation, greatly reduce tooth breaking rate.
The technical solution of the utility model is as follows:
A kind of anti-breaking tooth-like pivoting support, includes outer ring and the inner ring of height arrangement straggly, is provided with ring raceway, is provided with the steel ball that multiple annularly bearing race distributes ringwise in described ring raceway between described inner ring and the fitting surface of outer ring; It is characterized in that: the gear ring inwall of described inner ring being also provided with normal shift gradually, the top circle of described gear ring reduces from bottom to top gradually, the transverse tooth thickness of described gear ring increases little from bottom to top gradually, when gear ring is engaged with meshing part small gear, backlash increases gradually from top to bottom, avoid meshing part small gear lower end be out of shape when stand under load tilt after to engage with gear ring upper compressive and cause broken teeth.
The outer ring of described ring raceway upper and lower is also provided with annular groove, in described annular groove, is provided with annular sealing strip; Described outer ring is also provided with the oil hole leading to ring raceway, in described oil hole, oil nozzle is installed.
The beneficial effects of the utility model:
The utility model is rational in infrastructure, on the basis of original pivoting support, has only slightly changed original profile of tooth, does not have cost increase and easily realize, especially on digging machine pivoting support, greatly reduces tooth breaking rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is gear ring structure schematic diagram of the present utility model.
Embodiment
See Fig. 1, a kind of anti-breaking tooth-like pivoting support, includes outer ring 4 and the inner ring 2 of height arrangement straggly, is provided with ring raceway, is provided with the steel ball 3 that multiple annularly bearing race distributes ringwise in described ring raceway between described inner ring 2 and the fitting surface of outer ring 4; It is characterized in that: the gear ring 1 inwall of described inner ring 2 being also provided with normal shift gradually, the top circle of described gear ring 1 reduces from bottom to top gradually, the transverse tooth thickness of described gear ring 1 increases little from bottom to top gradually, when gear ring 1 is engaged with meshing part small gear, backlash increases gradually from top to bottom, avoid meshing part small gear lower end be out of shape when stand under load tilt after to engage with gear ring 1 upper compressive and cause broken teeth.
The outer ring 2 of described ring raceway upper and lower is also provided with annular groove, in described annular groove, is provided with annular sealing strip 5; Described outer ring 4 is also provided with the oil hole leading to ring raceway, oil nozzle 6 is installed in described oil hole.
Claims (2)
1. an anti-breaking tooth-like pivoting support, includes outer ring and the inner ring of height arrangement straggly, is provided with ring raceway, is provided with the steel ball that multiple annularly bearing race distributes ringwise in described ring raceway between described inner ring and the fitting surface of outer ring; It is characterized in that: the gear ring inwall of described inner ring being also provided with normal shift gradually, the top circle of described gear ring reduces from bottom to top gradually, the transverse tooth thickness of described gear ring increases little from bottom to top gradually, when gear ring is engaged with meshing part small gear, backlash increases gradually from top to bottom, avoid meshing part small gear lower end be out of shape when stand under load tilt after to engage with gear ring upper compressive and cause broken teeth.
2. the anti-breaking tooth-like pivoting support of one according to claim 1, is characterized in that: the outer ring of described ring raceway upper and lower is also provided with annular groove, is provided with annular sealing strip in described annular groove; Described outer ring is also provided with the oil hole leading to ring raceway, in described oil hole, oil nozzle is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520300459.3U CN204628304U (en) | 2015-05-11 | 2015-05-11 | A kind of anti-breaking tooth-like pivoting support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520300459.3U CN204628304U (en) | 2015-05-11 | 2015-05-11 | A kind of anti-breaking tooth-like pivoting support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628304U true CN204628304U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520300459.3U Active CN204628304U (en) | 2015-05-11 | 2015-05-11 | A kind of anti-breaking tooth-like pivoting support |
Country Status (1)
| Country | Link |
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| CN (1) | CN204628304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925295A (en) * | 2019-11-20 | 2020-03-27 | 马鞍山市博创回转支承有限公司 | Slewing bearing and oil injection process thereof |
-
2015
- 2015-05-11 CN CN201520300459.3U patent/CN204628304U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925295A (en) * | 2019-11-20 | 2020-03-27 | 马鞍山市博创回转支承有限公司 | Slewing bearing and oil injection process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 243100 Jingwei Slewing Bearing Co., Ltd., Dangtu Economic Development Zone, Ma'anshan City, Anhui Province Patentee after: Maanshan Jingwei Slewing Bearing Co.,Ltd. Address before: 243100 Jingwei Slewing Bearing Co., Ltd., Dangtu Economic Development Zone, Ma'anshan City, Anhui Province Patentee before: ALL TERRAIN MATCHING LINKAGE TRACKING PHOTOVOLTAIC SUPPORT FLEXIBLE DRIVING DEVICE |