CN201401438Y - Automobile air conditioning bearing - Google Patents
Automobile air conditioning bearing Download PDFInfo
- Publication number
- CN201401438Y CN201401438Y CN2009201170343U CN200920117034U CN201401438Y CN 201401438 Y CN201401438 Y CN 201401438Y CN 2009201170343 U CN2009201170343 U CN 2009201170343U CN 200920117034 U CN200920117034 U CN 200920117034U CN 201401438 Y CN201401438 Y CN 201401438Y
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- ring
- seal ring
- seal
- outer ring
- air conditioner
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Abstract
The utility model provides an automobile air conditioning bearing, which belongs to the technical field of mechanical engineering, and solves the problems that a prior automobile air conditioning bearing has no contact angles and limit axial bearing capacity. The automobile air conditioning bearing comprises an outer ring and an inner ring which is arranged in the outer ring, wherein the inner wall of the outer ring and the outer wall of the inner ring are provided with two channels, a steel ball is arranged in a chamber through a cage, the chamber is arranged between the outer ring and the inner ring through the channel, the channels are arranged in a parallel mode, a contact surface of the section thereof is an arc surface which is matched with the steel ball, an action line between thesteel ball and the channels and the plane and the channels forms a contact angle along the common normal of contact points, and the contact angle is 28-30 degrees. The automobile air conditioning bearing is provided with the contact angles and provided with R-shaped sealing rings on two ports of the chamber, thereby guaranteeing the bearing to have the advantages of low noise, high temperature resistance, large bearing capacity, high speed and excellent sealing.
Description
Technical field
The utility model belongs to mechanical engineering technical field, relates to a kind of engineering element, particularly a kind of car air conditioner bearing.
Background technique
Electromagnetic clutch of automobile air conditioner compressor bears engine high-temperature and influence of vibration, make this bearing at high temperature, at a high speed, work under the outstanding carrier strip spare, higher to the leakage fat sealing requirements of bearing.At present, to hold be that composite structure with single-row seal deep groove ball bearing or the single-row seal deep groove ball bearing of two covers is formed to known electromagnetic clutch of automobile air conditioner compressor.The bearing shortcoming of this structure is: the first, when assembling, need adjust play, pretension, interpolation lubricating grease with motorcar air conditioner, and the workmanship situation of its bearing is controlled by many personal factors in the assembly process, assembling difficulty is big, the assembling line length, cost height, and poor reliability; The second, traditional product does not structurally have wrapping angle, and axial bearing capacity is very limited.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind ofly to have sealing configuration and sealing height, have the car air conditioner bearing that the wrapping angle bearing capacity is big, noise is low.
The purpose of this utility model can realize by following technical proposal: a kind of car air conditioner bearing, comprise an outer ring and an inner ring that is arranged in the outer ring, be equipped with two raceway grooves on the inwall of outer ring and the outer wall of inner ring, steel ball is arranged in the chamber that forms by raceway groove between outer ring and the inner ring by retainer, it is characterized in that, described two raceway grooves are set up in parallel, the arc surface of the surface of contact in its cross section for matching with steel ball, line of action between steel ball and the raceway groove is along there being a wrapping angle between point of contact common normal line direction and channel plane, this wrapping angle is 28 °～30 °.Increased the bearing axial bearing capacity greatly after wrapping angle is set, thereby satisfied at high temperature fully, at a high speed, work under the vibration, outstanding carrier strip spare.
As above-mentioned preferred version, in above-mentioned car air conditioner bearing, described wrapping angle is 30 °.
In above-mentioned car air conditioner bearing, the two ends of described chamber are respectively equipped with the seal ring assembly that is used for the shutoff chamber port.After chamber two-port place is provided with seal ring assembly, make this chamber form an airtight chamber, thereby resultfully prevent that extraneous water from penetrating in the chamber, the water of having avoided infiltrating causes steel ball to get rusty to make it pivoting friction and increases.The grease that the sealing coil assembly has also effectively been stopped in the chamber simultaneously leaks, thereby it is longer than the lubricated steel ball time of the hub bearing that seal ring assembly is not set to make this wheel hub bearing store the grease of same amount in chamber, so improved the working life of this wheel hub bearing greatly.
In above-mentioned car air conditioner bearing, described seal ring assembly comprises seal ring and is arranged on the interior support frame of seal ring.Seal ring generally all adopts rubber material to make, and rubber material is all softer yielding, and support frame can effectively stop to lose because of the seal ring distortion phenomenon of sealing effect in seal ring.
In above-mentioned car air conditioner bearing, described seal ring is circular, has seal lip on its inner wall/outer wall; Seal lip has two lips for being " R " shape structure, is divided into main lip and secondary lip.Seal lip adopts " R " shape lips structure can adjust the closing gap sealing configuration automatically.Seal lip is littler than the area at other positions, and the seal lip place do not have support frame, makes it more easy deformation, so the sealing of seal lip and inner ring or outer ring is tighter.
In above-mentioned car air conditioner bearing, described seal ring is fixed on the outer ring, the internal diameter interference fit of the external diameter of seal ring and outer ring; Interior ring outer wall is provided with annular groove, and the main lip on the seal lip of internal diameter of the seal ring is resisted against on the sidewall of annular groove, and secondary lip is resisted against on the interior ring outer wall.Adopt interference fit that seal ring is in and be compressive state, this moment, seal ring was tightr with contacting of inner ring or outer ring, can also automatically the gap that wearing and tearing are produced be compensated simultaneously.
In above-mentioned car air conditioner bearing, described seal ring is fixed on the inner ring, the external diameter interference fit of the internal diameter of seal ring and outer ring; The outer ring inwall is provided with annular groove, and the main lip on the seal lip of seal ring external diameter is resisted against on the sidewall of annular groove, and secondary lip is resisted against on the inwall of outer ring.
In above-mentioned car air conditioner bearing, described seal ring adopts the nitrile rubber material to make.Nitrile rubber has fabulous oil resistance and heat resistance, the high strong advantage of wear resistance, bonding force, so sealing can be born the time that life-span of producing behind the seal ring prolongs that is provided with entirely fully.
Compared with prior art, this car air conditioner bearing has wrapping angle and is provided with " R " shape seal ring at chamber two-port place, thus guaranteed this bearing have low noise, high temperature resistant, bearing capacity is big, speed is high, the advantage of good airproof performance.
Description of drawings
Fig. 1 is the sectional structure schematic representation of this car air conditioner bearing.
Fig. 2 is the partial enlarged drawing at A place among this car air conditioner bearing Fig. 1.
Among the figure, 1, the outer ring; 2, steel ball; 3, retainer; 4, inner ring; 41, annular groove; 5, seal ring assembly; 6, seal ring; 61, seal lip; 61a, main lip; 61b, secondary lip; 7, support frame; 8, chamber; α, wrapping angle.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this car air conditioner bearing comprises an outer ring 1, inner ring 4, two row steel balls 2, two retainers 3, two groups of seal ring assemblies 5.
Specifically, outer ring 1 and inner ring 4 ringwise, the inwall of outer ring 1 is provided with two raceway grooves, inner ring 4 is arranged in the outer ring 1, the outer wall of inner ring 4 be provided with two corresponding with outer ring 1 raceway groove and the coupling raceway grooves.Between outer ring 1 and inner ring 4, form the chamber 8 that to place steel ball 2 by raceway groove, on chamber 8 interior two raceways a row steel ball 2 is set all, each row steel ball 2 is made up of 15 steel balls 2, on each row steel ball 2, establish a retainer 3 that steel ball 2 is evenly separated, thereby guarantee steel ball 22 orderly rolling on ring raceway.
Embodiment one
As depicted in figs. 1 and 2, article two, raceway groove is set up in parallel, the arc surface of the surface of contact in its cross section for matching with steel ball 2, line of action between steel ball 2 and the raceway groove is 28 °～30 ° a wrapping angle along a α is arranged between point of contact common normal line direction and channel plane, as a kind of preferred version, its α is 30 ° in the present embodiment.Obtaining 30 ° by optimal design is to bear the axial bearing capacity maximum value in 28 °～30 °, increase the bearing axial bearing capacity greatly after this wrapping angle is set, thereby satisfied this bearing high temperature, at a high speed, work under the vibration, outstanding carrier strip spare in the automobile air conditioner compressor magnetic clutch fully.
Be respectively equipped with the seal ring assembly 5 that is used for shutoff chamber 8 ports at the two ends of chamber 8, seal ring assembly 5 comprises seal ring 6 and the support frame 7 that is arranged in the seal ring 6.After chamber 8 two-port places are provided with seal ring assembly 5, make this chamber 8 form an airtight chamber, thereby resultfully prevent that extraneous water from penetrating in the chamber 8, the water of having avoided infiltrating causes steel ball 2 to get rusty to make it pivoting friction and increases.The grease that sealing coil assembly 5 has also effectively been stopped in the chamber 8 simultaneously leaks, thereby it is longer than lubricated 2 times of steel ball of the hub bearing that seal ring assembly 5 is not set to make this wheel hub bearing store the grease of same amount in chamber 8, so improved the working life of this wheel hub bearing greatly.
Seal ring 6 adopts the nitrile rubber material to make.Nitrile rubber has fabulous oil resistance and heat resistance, the high strong advantage of wear resistance, bonding force, so sealing can be born the time that life-spans that seal ring 6 backs produce prolong that is provided with entirely fully.
Seal ring 6 is circular, has seal lip 61 on its inwall, and seal lip 61 has two lips for being " R " shape structure, is divided into main lip 61a and secondary lip 61b, and seal lip 61 adopts " R " shape lips structure can adjust the closing gap sealing configuration automatically.Seal ring 6 is fixed on the outer ring 1, the internal diameter interference fit of the external diameter of seal ring 6 and outer ring 1; Inner ring 4 outer walls are provided with annular groove 41, and the main lip 61a of the seal lip 61 of seal ring 6 internal diameters is resisted against on the sidewall of annular groove 41, and secondary lip 61b interference fit is resisted against on inner ring 4 outer walls.Adopt interference fit that seal ring 6 is in and be compressive state, this moment, seal ring 6 was tightr with contacting of inner ring 4 or outer ring 1, can also automatically the gap that wearing and tearing are produced be compensated simultaneously.
Embodiment two
Present embodiment is basic identical with embodiment one structure and principle, and different place is: seal ring 6 is fixed on the inner ring 4, the external diameter interference fit of the internal diameter of seal ring 6 and outer ring 1; Outer ring 1 inwall is provided with annular groove, and the main lip 61a on the seal lip 61 of seal ring 6 external diameters is resisted against on the sidewall of annular groove, and secondary lip 61b is resisted against on 1 inwall of outer ring.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used outer ring 1 morely; Steel ball 2; Retainer 3; Inner ring 4; Annular groove 41; Seal ring assembly 5; Seal ring 6; Seal lip 61; Main lip 61a; Secondary lip 61b; Support frame 7; Chamber 8; Terms such as wrapping angle α, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (8)
1, a kind of car air conditioner bearing, comprise an outer ring (1) and be arranged on the interior inner ring (4) in outer ring (1), be equipped with two raceway grooves on the outer wall of the inwall of outer ring (1) and inner ring (4), steel ball (2) is arranged in the chamber (8) that forms by raceway groove between outer ring (1) and the inner ring (4) by retainer (3), it is characterized in that, described two raceway grooves are set up in parallel, the arc surface of the surface of contact in its cross section for matching with steel ball (2), line of action between steel ball (2) and the raceway groove is along there being a wrapping angle between point of contact common normal line direction and channel plane, this wrapping angle is 28 °～30 °.
2, car air conditioner bearing according to claim 1 is characterized in that, described wrapping angle is 30 °.
3, car air conditioner bearing according to claim 1 is characterized in that, the two ends of described chamber (8) are respectively equipped with seal ring (6) assembly (5) that is used for shutoff chamber (8) port.
4, car air conditioner bearing according to claim 3 is characterized in that, described seal ring (6) assembly (5) comprises seal ring (6) and is arranged on the interior support frame (7) of seal ring (6).
5, car air conditioner bearing according to claim 4 is characterized in that, described seal ring (6) is circular, has seal lip (61) on its inner wall/outer wall; Seal lip (61) has two lips for being " R " shape structure, is divided into main lip (61a) and secondary lip (61b).
According to claim 3 or 4 described car air conditioner bearings, it is characterized in that 6, described seal ring (6) is fixed on the outer ring (1), the internal diameter interference fit of the external diameter of seal ring (6) and outer ring (1); Inner ring (4) outer wall is provided with annular groove (41), and the main lip (61a) on the seal lip (61) of seal ring (6) internal diameter is resisted against on the sidewall of annular groove (41), and secondary lip (61b) is resisted against on inner ring (4) outer wall.
According to claim 3 or 4 described car air conditioner bearings, it is characterized in that 7, described seal ring (6) is fixed on the inner ring (4), the external diameter interference fit of the internal diameter of seal ring (6) and outer ring (1); Outer ring (1) inwall is provided with annular groove (41), and the main lip (61a) on the seal lip (61) of seal ring (6) external diameter is resisted against on the sidewall of annular groove (41), and secondary lip (61b) is resisted against on the inwall of outer ring (1).
According to claim 3 or 4 described car air conditioner bearings, it is characterized in that 8, described seal ring (6) adopts nitrile rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201170343U CN201401438Y (en) | 2009-04-07 | 2009-04-07 | Automobile air conditioning bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201170343U CN201401438Y (en) | 2009-04-07 | 2009-04-07 | Automobile air conditioning bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201401438Y true CN201401438Y (en) | 2010-02-10 |
Family
ID=41661236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201170343U Expired - Fee Related CN201401438Y (en) | 2009-04-07 | 2009-04-07 | Automobile air conditioning bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201401438Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042334A (en) * | 2011-01-06 | 2011-05-04 | 无锡市第二轴承有限公司 | Waterproof seal ring for bearing |
| CN103867579A (en) * | 2012-12-10 | 2014-06-18 | 杭州冠群科技开发有限公司 | Special-shaped skeleton rubber sealing ring |
| CN105221565A (en) * | 2015-11-05 | 2016-01-06 | 江苏万达特种轴承有限公司 | A kind of double-row-ball roller bearing of six point cantact and channel processing method thereof and device |
| CN105299032A (en) * | 2014-07-29 | 2016-02-03 | 优必胜(上海)精密轴承制造有限公司 | Corrosion resistant deep groove ball bearing for air conditioner |
| CN106837995A (en) * | 2017-04-10 | 2017-06-13 | 无锡市海峰海林精工机械制造有限公司 | A kind of automobile engine refractory seals bearing |
| CN109296631A (en) * | 2018-12-04 | 2019-02-01 | 中山市盈科轴承制造有限公司 | Nonstandard four point contacts roller bearing units |
-
2009
- 2009-04-07 CN CN2009201170343U patent/CN201401438Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042334A (en) * | 2011-01-06 | 2011-05-04 | 无锡市第二轴承有限公司 | Waterproof seal ring for bearing |
| CN103867579A (en) * | 2012-12-10 | 2014-06-18 | 杭州冠群科技开发有限公司 | Special-shaped skeleton rubber sealing ring |
| CN105299032A (en) * | 2014-07-29 | 2016-02-03 | 优必胜(上海)精密轴承制造有限公司 | Corrosion resistant deep groove ball bearing for air conditioner |
| CN105221565A (en) * | 2015-11-05 | 2016-01-06 | 江苏万达特种轴承有限公司 | A kind of double-row-ball roller bearing of six point cantact and channel processing method thereof and device |
| CN106837995A (en) * | 2017-04-10 | 2017-06-13 | 无锡市海峰海林精工机械制造有限公司 | A kind of automobile engine refractory seals bearing |
| CN109296631A (en) * | 2018-12-04 | 2019-02-01 | 中山市盈科轴承制造有限公司 | Nonstandard four point contacts roller bearing units |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20180407 |