CN101876341B - Plane bearing of compressor crankshaft - Google Patents
Plane bearing of compressor crankshaft Download PDFInfo
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- CN101876341B CN101876341B CN 201010180702 CN201010180702A CN101876341B CN 101876341 B CN101876341 B CN 101876341B CN 201010180702 CN201010180702 CN 201010180702 CN 201010180702 A CN201010180702 A CN 201010180702A CN 101876341 B CN101876341 B CN 101876341B
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- plane bearing
- ball
- direction recess
- crank shaft
- annular direction
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Abstract
The invention relates to a plane bearing of a compressor crankshaft. The plane bearing comprises a ball, a ball support, an upper gear sheet and a lower gear sheet, and is characterized in that: the inner sides of the upper gear sheet and the lower gear sheet are provided with an annular guide groove corresponding to the ball respectively; the cross section of the annular guide groove is a section of circular arc; and the ratio of the semidiameter of the circular arc of the cross section of the annular guide groove to the great circle semidiameter of the ball is from 1/2 to 3/4. The plane bearing provided by the invention has a simple structure, a large storage volume of lubricating oil and a good lubricating effect, and can effectively buffer shifting.
Description
Technical field
The present invention relates to a kind of bearing, especially relate to a kind of plane bearing.
Background technique
The bent axle of compressor needs generally to realize assembling through a plane bearing and frame that this plane bearing generally comprises ball, ball retainer, goes up lower gear plate etc., wherein goes up lower gear plate and matches with the mounting plane and the shaft shoulder respectively.Because compressor crank shaft high-speed rotation at work, thus also high-speed rotation of this plane bearing with the rotation of bent axle, if its lubricated oil supplying untimely, put in place, can influence its working life significantly.But the situation of reality is, because the position that last lower gear plate contacts with ball is the plane, so it almost can not storing lubricating oil.Also some plane bearing is provided with the ball guiding groove of an annular; Can store a certain amount of lubricant oil in this guiding groove; But owing to be suitable with ball on its structure, can most lubricant oil be extruded the ball guiding groove in the rolling process of ball, its lubrication effect is very limited.Publication number is that the Chinese patent of CN2811616 discloses a kind of room air conditioner that has novel lower support structure and uses scroll compressor; It comprises casing and is installed in motor, bent axle, Moving plate, the quiet dish in the casing that bent axle is sleeved on the rotor of motor, links to each other with Moving plate on it; Its lower end passes motor and lubricating oil bath is relative; On its characteristic bent axle end relative with lubricating oil bath the sideboard that has oil-sucking hole is installed, the lower end of bent axle and sideboard all are arranged in undersetting, at the inner bottom part of undersetting plane bearing are installed; And being provided with oil-sucking hole, the exterior edge face of the upper surface of plane bearing and corresponding movable baffle plate is relative.If the lubricant oil that this plane bearing obtains through oil-sucking hole can not obtain storing on plate washer, ball just can not fully soak into, and influences the lubrication effect of plane bearing.
Summary of the invention
The present invention mainly is the technical problem that storage volume is few, lubrication effect is bad that solves the plane bearing lubricant oil of existing in prior technology compressor crank shaft, provides that a kind of storage volume simple in structure, lubricant oil is many, the plane bearing of the compressor crank shaft of high lubricating effect.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals: a kind of plane bearing of compressor crank shaft; Comprise ball, ball rack, go up washer, lower gear plate; It is characterized in that described inboard of going up washer and lower gear plate is respectively equipped with and the corresponding annular direction recess of ball; The cross section of this annular direction recess is one section circular arc, and its radius is less than the big circle radius of ball.This plane bearing in use; The lubricant oil that is fed to wherein enters into annular direction recess; Certain clearance can be formed because the cross section circular arc radius of annular direction recess less than the big circle radius of ball, makes between bottom and the ball of annular direction recess, more a large amount of lubricant oil can be stored in this gap; And make can the soaking in lubricant oil of ball than large size, realize well dripping sliding.Again because in the work, the ball high-speed rotation makes it can drive lubricant oil in the lower gear plate in last washer, make also to form an oil duct in the annular direction recess of going up washer, make the top of ball also soak in lubricant oil.
As preferably, the cross section circular arc radius of described annular direction recess is 1/2 to 3/4 with the ratio of the big circle radius of ball.This dimension scale makes and has guaranteed that having an enough big gap between annular direction recess bottom and the ball can preserve lubricant oil, also makes ball that enough big wetted area is arranged simultaneously.Again because the lubricant oil in the annular direction recess of last washer is to be with up through the rolling of ball; Utilize the viscosity of lubricant oil itself in annular direction recess, to obtain preserving simultaneously; If should the annular direction recess excesssive gap of bottom and ball; Its viscosity is not enough to the lubricant oil in the input gap is kept, and is unfavorable for that lubricant oil stores in annular direction recess.
As preferably, the cross section arc length of described annular direction recess is 1/20 to 1/10 of a ball great circle girth.Ball lubricated is just passable as long as its contact position reaches certain cunning; Its width does not need wide; Because the lubricant oil in the annular direction recess of last washer is to be with up through the rolling of ball, utilize the viscosity of lubricant oil itself in annular direction recess, to obtain preservation simultaneously again, if width that should the annular direction recess is excessive; Its viscosity is not enough to the lubricant oil in the input gap is kept, and is unfavorable for that lubricant oil stores in annular direction recess.
As preferably, the both sides of the edge of described annular direction recess are provided with transition arc.This transition arc makes stressed the obtaining between ball and annular direction recess and the ball disperse, and has avoided stress to concentrate the damage to annular direction recess both sides of the edge that brings.
As preferably, the described outside of going up washer and lower gear plate is respectively equipped with annular oil groove, the ring shaped oil passage that this annular oil groove can cooperate formation to seal with the plane bearing mounting plane.Because compressor crank shaft can produce a certain amount of axial float in the middle of operation; This play can cause bigger injury to plane bearing and mounting plane thereof; And the lubricant oil in this ring shaped oil passage is distributed to the whole erection plane in the play process of compressor crank shaft; Between mounting plane and last washer or lower gear plate, form oil film, this oil film plays the buffer function to play, effectively improves the working life of plane bearing.
The beneficial effect that brings of the present invention is; The storage volume of plane bearing lubricant oil that solves the existing in prior technology compressor crank shaft is few, lubrication effect is bad, the play of compressor crank shaft is given birth to the technical problem of injury to plane bearing, provides that a kind of storage volume simple in structure, lubricant oil is many, the plane bearing of the play of high lubricating effect, effective buffer compression machine crankshaft.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of embodiments of the invention 1;
Accompanying drawing 2 is a kind of structural representations of embodiments of the invention 2;
Accompanying drawing 4 is partial sectional views of the erection drawing of embodiments of the invention 2.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technological scheme of the present invention.
Embodiment 1:
Like Fig. 1, shown in Figure 3; The present invention is a kind of plane bearing of compressor crank shaft; Comprise ball 2, ball rack 3, go up washer 1, lower gear plate 4, described inboard of going up washer 1 and lower gear plate 4 is respectively equipped with and the corresponding annular direction recess 5 of ball, and the cross section of this annular direction recess is one section circular arc; The radius of arc of wherein annular direction recess cross section is 0.91mm; The big circle radius of ball is 1.52mm, and the cross section arc length of annular direction recess is 1/15 of a ball great circle girth, and the both sides of the edge of annular direction recess are provided with transition arc 8.
This plane bearing in use; The lubricant oil that is fed to wherein enters into annular direction recess; Certain clearance can be formed because the cross section circular arc radius of annular direction recess less than the big circle radius of ball, makes between bottom and the ball of annular direction recess, more a large amount of lubricant oil can be stored in this gap; And make can the soaking in lubricant oil of ball than large size, realize well dripping sliding.Again because in the work, the ball high-speed rotation makes it can drive lubricant oil in the lower gear plate in last washer, make also to form an oil duct in the annular direction recess of going up washer, make the top of ball also soak in lubricant oil.
Embodiment 2:
Like Fig. 2, shown in Figure 4; The present invention is a kind of plane bearing of compressor crank shaft; Comprise ball 2, ball rack 3, go up washer 1, lower gear plate 4, described inboard of going up washer and lower gear plate is respectively equipped with and the corresponding annular direction recess 5 of ball, and the cross section of this annular direction recess is one section circular arc; The radius of arc of wherein annular direction recess cross section is 0.91mm; The big circle radius of ball is 1.52mm, and the cross section arc length of annular direction recess is 1/15 of a ball great circle girth, and the both sides of the edge of annular direction recess are provided with transition arc 8.The outside of last washer and lower gear plate is respectively equipped with annular oil groove 9, and this annular oil groove can cooperate the ring shaped oil passage that constitutes sealing with the plane bearing mounting plane.
Because compressor crank shaft can produce a certain amount of axial float in the middle of operation; This play can cause bigger injury to plane bearing and mounting plane 6 thereof; And the lubricant oil in this ring shaped oil passage is distributed to the whole erection plane in the play process of compressor crank shaft; Between mounting plane and last washer or lower gear plate, form oil film 7, this oil film plays the buffer function to play, effectively improves the working life of plane bearing.
So storage volume simple in structure, lubricant oil that the present invention has is few, high lubricating effect, the effective characteristics such as play of buffer compression machine crankshaft.
Claims (8)
1. the plane bearing of a compressor crank shaft; Comprise ball, ball rack, go up washer, lower gear plate; It is characterized in that described inboard of going up washer and lower gear plate is respectively equipped with and the corresponding annular direction recess of ball; The cross section of this annular direction recess is one section circular arc, and its radius is less than the big circle radius of ball.
2. the plane bearing of a kind of compressor crank shaft according to claim 1, the cross section circular arc radius that it is characterized in that described annular direction recess is 1/2 to 3/4 with the ratio of the big circle radius of ball.
3. the plane bearing of a kind of compressor crank shaft according to claim 1 and 2, the cross section arc length that it is characterized in that described annular direction recess is 1/20 to 1/10 of a ball great circle girth.
4. the plane bearing of a kind of compressor crank shaft according to claim 1 and 2 is characterized in that the both sides of the edge of described annular direction recess are provided with transition arc.
5. the plane bearing of a kind of compressor crank shaft according to claim 3 is characterized in that the both sides of the edge of described annular direction recess are provided with transition arc.
6. the plane bearing of a kind of compressor crank shaft according to claim 1 is characterized in that the described outside of going up washer and lower gear plate is respectively equipped with annular oil groove, and this annular oil groove can cooperate the ring shaped oil passage that constitutes sealing with the plane bearing mounting plane.
7. the plane bearing of a kind of compressor crank shaft according to claim 3 is characterized in that the described outside of going up washer and lower gear plate is respectively equipped with annular oil groove, and this annular oil groove can cooperate the ring shaped oil passage that constitutes sealing with the plane bearing mounting plane.
8. the plane bearing of a kind of compressor crank shaft according to claim 4 is characterized in that the described outside of going up washer and lower gear plate is respectively equipped with annular oil groove, and this annular oil groove can cooperate the ring shaped oil passage that constitutes sealing with the plane bearing mounting plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010180702 CN101876341B (en) | 2010-05-24 | 2010-05-24 | Plane bearing of compressor crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010180702 CN101876341B (en) | 2010-05-24 | 2010-05-24 | Plane bearing of compressor crankshaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101876341A CN101876341A (en) | 2010-11-03 |
| CN101876341B true CN101876341B (en) | 2012-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010180702 Active CN101876341B (en) | 2010-05-24 | 2010-05-24 | Plane bearing of compressor crankshaft |
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| Country | Link |
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| CN (1) | CN101876341B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008004033B4 (en) * | 2008-01-11 | 2012-05-31 | Schaeffler Technologies Gmbh & Co. Kg | Cage for rolling elements |
| DE102010011437B4 (en) * | 2010-03-15 | 2011-12-08 | Schaeffler Technologies Gmbh & Co. Kg | Axial rolling bearing, in particular one-sided thrust ball bearing |
| CN101876342B (en) * | 2010-05-24 | 2012-01-25 | 杭州钱江压缩机有限公司 | Novel plane bearing |
| CN104405637A (en) * | 2014-12-18 | 2015-03-11 | 淄博昊驰泵业有限公司 | Vacuum scroll compressor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2811616Y (en) * | 2005-08-15 | 2006-08-30 | 钱永贵 | Vortex compressor with novel lower support structure for air conditioner |
| CN101876342A (en) * | 2010-05-24 | 2010-11-03 | 杭州钱江压缩机有限公司 | Novel plane bearing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009275799A (en) * | 2008-05-14 | 2009-11-26 | Nsk Ltd | Deep groove ball bearing |
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2010
- 2010-05-24 CN CN 201010180702 patent/CN101876341B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2811616Y (en) * | 2005-08-15 | 2006-08-30 | 钱永贵 | Vortex compressor with novel lower support structure for air conditioner |
| CN101876342A (en) * | 2010-05-24 | 2010-11-03 | 杭州钱江压缩机有限公司 | Novel plane bearing |
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| Publication number | Publication date |
|---|---|
| CN101876341A (en) | 2010-11-03 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CP03 | Change of name, title or address |
Address after: Hangzhou City, Zhejiang province 311000 industrial city of Yuhang Xianlin holy Road No. 1 Patentee after: Hangzhou Qianjiang Compressor Group Co. Ltd. Address before: Hangzhou City, Zhejiang province 311122 industrial city of Yuhang Xianlin holy Road No. 1 Patentee before: Hangzhou Qianjiang Compressor Co., Ltd. |
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| CP03 | Change of name, title or address |
Address after: No. 1, Yuhang street, Yuhang street, Yuhang District, Hangzhou, Zhejiang Patentee after: Hangzhou Qianjiang Refrigeration Compressor Group Co., Ltd. Address before: Hangzhou City, Zhejiang province 311000 industrial city of Yuhang Xianlin holy Road No. 1 Patentee before: Hangzhou Qianjiang Compressor Group Co. Ltd. |
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| CP03 | Change of name, title or address |