CN202150762U - Generator overrunning belt pulley - Google Patents
Generator overrunning belt pulley Download PDFInfo
- Publication number
- CN202150762U CN202150762U CN201120209769U CN201120209769U CN202150762U CN 202150762 U CN202150762 U CN 202150762U CN 201120209769 U CN201120209769 U CN 201120209769U CN 201120209769 U CN201120209769 U CN 201120209769U CN 202150762 U CN202150762 U CN 202150762U
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- China
- Prior art keywords
- outer ring
- bearing outer
- wheel hub
- belt pulley
- inner race
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Abstract
The utility model provides a generator overrunning belt pulley, and belongs to the mechanical technology field. The generator overrunning belt pulley solves the problems of short service lifetime, and the like, existing in a conventional generator overrunning belt pulley. The generator overrunning belt pulley includes a wheel hub, a bearing outer ring, a bearing inner ring, and an axle sleeve used to connect with an axle. The bearing outer ring is fixedly connected with an inner side of the wheel hub. The axle sleeve is fixedly connected with the inner side of the bearing inner ring. A unidirectional structure which enables the wheel hub to rotate only along a direction relative to the bearing inner ring is arranged between the bearing inner ring and the wheel hub. The unidirectional structure is an extending section which extends out from the bearing inner ring to the bearing outer ring and a unidirectional bearing outer ring which is fixedly connected with the inner side of the wheel hub. A retaining rack is arranged between the extending section and the wheel hub. The retaining rack is axially fixed between the extending section and the unidirectional bearing outer ring. A plurality of needle rollers are arranged between the retaining rack and the extending section, and a spring is arranged between one side of the needle rollers and the retaining rack. Under the spring action of the spring, the needle rollers partially extend out from the retaining rack to contact with the extending section. The generator overrunning belt pulley has the advantages of long service lifetime, excellent stability, and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of output device of generator, and particularly a kind of generator surmounts belt pulley.
Background technology
Generator is that the energy conversion with other form is the plant equipment of electric energy, uses very extensive.At present, the rotor of generator is generally all driven by belt pulley and rotates, and belt pulley connects engine or other mechanical structure through driving-belt.
During generator uses; When engine or other mechanical structure were quickened suddenly or slowed down, the rotating speed of generator pulley was also along with speed change, but because action of inertia; Can cause rotating speed moment of rotor and belt pulley of generator asynchronous; Can form between belt pulley and the driving-belt on it and impact, reduce the life-span of driving-belt, and can produce noise; When engine or other mechanical structure out-of-work moment; Can there be a very of short duration backward rotation in belt pulley, though be very of short duration circling round for a short time of time, also can drive generator amature and reverse an angle and produce negative electricity; And and switch to positive electricity; Coil in the generator amature receives plus-minus electric shock effect like this, has reduced the useful life of coil, even has the hidden danger of coil scaling loss.
Summary of the invention
The purpose of the utility model is to the problems referred to above that exist in the prior art, provide a kind of long service life, can extension coil the generator in useful life surmount belt pulley.
The purpose of the utility model can realize through following technical proposal: a kind of generator surmounts belt pulley; The axle sleeve that comprises wheel hub, bearing outer ring, bearing inner race and be used for linking to each other with axletree; It is characterized in that; Described bearing outer ring is connected in the wheel hub inboard, and described axle sleeve is connected in the bearing inner race inboard, has the check configuration that wheel hub can only be rotated along direction with respect to bearing inner race between described bearing inner race and the wheel hub; Described check configuration is the unilateral bearing outer ring inboard with being connected in wheel hub, extension of projecting shaft bearing outer-ring on the bearing inner race; Have retainer between extension and the wheel hub, retainer is axially fixed between extension and the unilateral bearing outer ring, is provided with some needle rollers between said retainer and the extension; And between the wherein side of needle roller and retainer, be provided with spring, needle roller partly stretches out retainer and can contact with above-mentioned extension under the elastic force effect of spring.
During manufacturing, the inboard and bearing outer ring interference fit of wheel hub can not skidded bearing outer ring at work, and can not influenced work because of distortion, and the bearing inner race inboard also is an interference fit with axle sleeve.During assembling, be benchmark with the bearing inner race, with the axle sleeve interference fit be inserted in the bearing inner race; Refill and mix retainer, needle roller and unilateral bearing outer ring, be inserted in wheel hub at last, the equal interference fit of wheel hub and bearing outer ring and unilateral bearing outer ring; Because bearing inner race has the extension; Bearing inner race to decide neutrality good, accomplishing generator after the assembling, to surmount the positioning accuracy of belt pulley high, long service life.
This generator surmounts belt pulley in use; Wheel hub is through the rotor rotation of driving-belt drive engine, and check configuration guarantees that wheel hub can only rotate along a direction, like this when the axletree rotating speed changes; Wheel hub can not receive inertia effects; Wheel hub still keeps original operating state, and the driving-belt on wheel hub and the wheel hub can not form impact, has prolonged the useful life of driving-belt; Also have when axletree stops operating; Bearing outer ring and wheel hub still can not be affected, and bearing outer ring and wheel hub can not reverse, and the coil in the engine rotor can not reverse yet and produce the moment negative electricity like this; Coil can not receive plus-minus electric impact, has prolonged the useful life of coil.In the use; The rotating speed of doing equidirectional rotation and bearing inner race when bearing inner race and bearing outer ring, unilateral bearing outer ring is during greater than the rotating speed of bearing outer ring, unilateral bearing outer ring; Under spring force and function of friction; Needle roller is clamped between the extension and unilateral bearing outer ring of bearing inner race, and bearing inner race and unilateral bearing outer ring combine and do rotatablely moving with speed in the same way; The rotating speed of doing reverse rotation or bearing inner race when bearing inner race and bearing outer ring, unilateral bearing outer ring is during less than the rotating speed of bearing outer ring, unilateral bearing outer ring; Frictional force overcomes the elastic force of spring; Needle roller breaks away from the bearing inner race surface; The extension of bearing inner race and unilateral bearing outer ring are disengaged position, and the unilateral bearing outer ring can not receive the influence of bearing inner race and reverse at this moment; After the rotating speed of bearing inner race promoted once more, the extension of bearing inner race can combine once more with the unilateral bearing outer ring and do rotatablely moving with speed in the same way.
Surmount in the belt pulley at above-mentioned generator, the two ends of described retainer have the sealing of protrusion, the sealing outside and the clamping of unilateral bearing outer ring, and above-mentioned needle roller is blocked between the two sealing inboards.Like this needle roller is carried out spacingly, guaranteeing can axial endplay in rolling at needle roller, the good stability that needle roller rolls, long service life.
Surmount in the belt pulley at above-mentioned generator, the two ends of described bearing outer ring are respectively equipped with seal washer.Seal washer has guaranteed sealing, can prevent that dust from entering into bearing outer ring inside, prolonged useful life.
Surmount in the belt pulley at above-mentioned generator, described bearing outer ring is resisted against an end of unilateral bearing outer ring, and one of them above-mentioned seal washer is pressed between bearing outer ring and the unilateral bearing outer ring.Bearing outer ring for the unilateral bearing outer ring do against, the unilateral bearing outer ring can be to this end play of bearing outer ring.
Surmount in the belt pulley at above-mentioned generator, described seal washer is processed by rubber or nylon material.
Surmount in the belt pulley at above-mentioned generator, described bearing outer ring and bearing inner race are processed by the GCr15 material.The resistance to wear of bearing outer ring and bearing inner race and contact strength are good like this, long service life.
Compared with prior art, the generator that provides of the utility model surmounts belt pulley and has the following advantages:
1, this generator surmounts belt pulley and makes wheel hub and driving-belt can not form impact because of the axletree rotating speed changes through check configuration, driving-belt can moment overtension, prolonged its useful life.
2, this generator surmounts belt pulley and makes bearing outer ring, unilateral bearing outer ring and wheel hub can not reverse through check configuration; Guaranteed that the coil in the engine rotor can not reverse yet and produces the moment negative electricity; Coil can not receive plus-minus electric impact, has prolonged the useful life of coil.
3, this generator surmounts belt pulley and makes whole drive system be in operating state stably all the time through check configuration, the whole drive system good operating stability.
4, this generator surmounts and in the belt pulley needle roller has been carried out spacingly, and guaranteeing can axial endplay in rolling at needle roller, the good stability that needle roller rolls, long service life.
Description of drawings
Fig. 1 be this generator surmount belt pulley partly cut open structural representation.
Fig. 2 is the decomposition texture cross-sectional schematic that this generator surmounts belt pulley.
Fig. 3 is the structural representation that this generator surmounts belt pulley medi-spring and needle roller.
Among the figure, 1, wheel hub; 2, bearing outer ring; 3, bearing inner race; 3a, extension; 4, axle sleeve; 5, unilateral bearing outer ring; 6, retainer; 6a, sealing; 7, needle roller; 8, spring; 9, seal washer.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
This generator surmounts belt pulley and is made up of parts such as wheel hub 1, bearing outer ring 2, bearing inner race 3 and axle sleeves 4; Axle sleeve 4 is used for being connected with axletree; Bearing outer ring 2 is processed by the GCr15 material with bearing inner race 3, is fixed with plurality of balls between bearing outer ring 2 and the bearing inner race 3.When axletree rotated, this belt pulley rotated with axletree, thereby drove the rotor rotation generating of generator.
Specifically; As depicted in figs. 1 and 2; Bearing outer ring 2 is connected in wheel hub 1 inboard through interference fit, and axle sleeve 4 also is connected in bearing inner race 3 inboards through interference fit, has the check configuration that wheel hub 1 can only be rotated along direction with respect to bearing inner race 3 between bearing inner race 3 and the wheel hub 1.As shown in Figures 2 and 3; Check configuration is the extension 3a and the unilateral bearing outer ring 5 that is connected in wheel hub 1 inboard of projecting shaft bearing outer-ring 2 on the bearing inner race 3; Has retainer 6 between extension 3a and the wheel hub 1; Retainer 6 is axially fixed between extension 3a and the unilateral bearing outer ring 5, is provided with some needle rollers 7 between retainer 6 and the extension 3a, and the quantity of needle roller 7 is decided according to actual conditions; And between the wherein side of needle roller 7 and retainer 6, be provided with spring 8, needle roller 7 parts are stretched out retainer 6 and can be contacted with extension 3a under the elastic force effect of spring 8.The two ends of bearing outer ring 2 are respectively equipped with by rubber or nylon material and process seal washer 9; And bearing outer ring 2 is resisted against an end of unilateral bearing outer ring 5; One of them above-mentioned seal washer 9 is pressed between bearing outer ring 2 and the unilateral bearing outer ring 5; The two ends of retainer 6 have the sealing 6a of protrusion, the sealing 6a outside and 5 clampings of unilateral bearing outer ring, and needle roller 7 is blocked between the two sealing 6a inboards.
During assembling, be benchmark with bearing inner race 3, with axle sleeve 4 interference fit be inserted in the bearing inner race 3; Refill and mix retainer 6, needle roller 7 and unilateral bearing outer ring 5, be inserted in wheel hub 1 at last, wheel hub 1 and bearing outer ring 2 and unilateral bearing outer ring 5 equal interference fit; Because bearing inner race 3 has extension 3a; Bearing inner race 3 to decide neutrality good, accomplishing generator after the assembling, to surmount the positioning accuracy of belt pulley high, long service life.
This generator surmounts belt pulley in use; Wheel hub 1 drives the rotor rotation of engine through driving-belt; When axletree rotates; Axle sleeve 4 drives bearing inner race 3 and rotates with axletree, and this moment, bearing inner race 3 was done the rotating speed of the rotating speed of equidirectional rotation and bearing inner race 3 greater than bearing outer ring 2, unilateral bearing outer ring 5 with bearing outer ring 2, unilateral bearing outer ring 5, under spring 8 elastic force and function of friction; Needle roller 7 is clamped between the extension 3a and unilateral bearing outer ring 5 of bearing inner race 3; Bearing inner race 3 and unilateral bearing outer ring 5 combine and do in the same way with the rotatablely moving of speed, and unilateral bearing outer ring 5 drives wheel hubs 1 and rotates together, and the rotor rotation that wheel hub 1 makes generator through driving-belt again is to generate electricity.And when the axletree rotating speed changes; Check configuration guarantees that wheel hub 1 can only rotate along a direction, and promptly when bearing inner race 3 took place moment counter-rotating or bearing inner race 3 make bearing inner race 3 with the axletree deceleration rotating speed less than the rotating speed of bearing outer ring 2, unilateral bearing outer ring 5 with axletree, frictional force overcame the elastic force of spring 8; Needle roller 7 breaks away from bearing inner race 3 surfaces; The extension 3a of bearing inner race 3 and unilateral bearing outer ring 5 are disengaged position, and unilateral bearing outer ring 5 can not receive the influence of bearing inner race 3 and reverse at this moment, and the wheel hub 1 that is connected with unilateral bearing outer ring 5 keeps original operating state; Driving-belt on wheel hub 1 and the wheel hub 1 can not form impact; Prolonged the useful life of driving-belt, and wheel hub 1 can not reverse, the coil in the engine rotor can not reverse yet and produce the moment negative electricity like this; Coil can not receive plus-minus electric impact, has prolonged the useful life of coil; After the rotating speed of bearing inner race 3 promoted once more, the extension 3a of bearing inner race 3 can combine once more with unilateral bearing outer ring 5 and do in the same way with fast rotatablely moving afterwards, and the wheel hub 1 that is connected with unilateral bearing outer ring 5 together rotates.
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 the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as wheel hub 1, bearing outer ring 2, bearing inner race 3, extension 3a, axle sleeve 4, unilateral bearing outer ring 5, retainer 6, sealing 6a, needle roller 7, spring 8, seal washer 9 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (6)
1. a generator surmounts belt pulley; Comprise wheel hub (1), bearing outer ring (2), bearing inner race (3) and the axle sleeve (4) that is used for linking to each other with axletree; It is characterized in that; Described bearing outer ring (2) is connected in wheel hub (1) inboard; Described axle sleeve (4) is connected in bearing inner race (3) inboard; Have the check configuration that wheel hub (1) can only be rotated along direction with respect to bearing inner race (3) between described bearing inner race (3) and the wheel hub (1), described check configuration is the extension (3a) and the unilateral bearing outer ring (5) that is connected in wheel hub (1) inboard that bearing inner race (3) is gone up projecting shaft bearing outer-ring (2), has retainer (6) between extension (3a) and the wheel hub (1); Retainer (6) is axially fixed between extension (3a) and unilateral bearing outer ring (5); Be provided with some needle rollers (7) between said retainer (6) and extension (3a), and between the wherein side of needle roller (7) and retainer (6), be provided with spring (8), needle roller (7) part is stretched out retainer (6) and can be contacted with above-mentioned extension (3a) under the elastic force effect of spring (8).
2. generator according to claim 1 surmounts belt pulley; It is characterized in that; The two ends of said retainer (6) have the sealing (6a) of protrusion, sealing (6a) outside and unilateral bearing outer ring (5) clamping, and above-mentioned needle roller (7) is blocked between two sealings (6a) inboard.
3. generator according to claim 1 and 2 surmounts belt pulley, it is characterized in that, the two ends of described bearing outer ring (2) are respectively equipped with seal washer (9).
4. generator according to claim 3 surmounts belt pulley; It is characterized in that; Described bearing outer ring (2) is resisted against an end of unilateral bearing outer ring (5), and above-mentioned one of them seal washer (9) is pressed between bearing outer ring (2) and unilateral bearing outer ring (5).
5. generator according to claim 4 surmounts belt pulley, it is characterized in that, described seal washer (9) is processed by rubber or nylon material.
6. generator according to claim 1 and 2 surmounts belt pulley, it is characterized in that, described bearing outer ring (2) and bearing inner race (3) are processed by the GCr15 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120209769U CN202150762U (en) | 2011-06-20 | 2011-06-20 | Generator overrunning belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120209769U CN202150762U (en) | 2011-06-20 | 2011-06-20 | Generator overrunning belt pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202150762U true CN202150762U (en) | 2012-02-22 |
Family
ID=45591813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120209769U Expired - Fee Related CN202150762U (en) | 2011-06-20 | 2011-06-20 | Generator overrunning belt pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202150762U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485772A (en) * | 2015-01-08 | 2015-04-01 | 张志雄 | Disc type titanium alloy synchronous belt wheel motor |
| KR200483870Y1 (en) * | 2016-03-25 | 2017-07-04 | 쩡모쩐 | Generater OAP |
-
2011
- 2011-06-20 CN CN201120209769U patent/CN202150762U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485772A (en) * | 2015-01-08 | 2015-04-01 | 张志雄 | Disc type titanium alloy synchronous belt wheel motor |
| KR200483870Y1 (en) * | 2016-03-25 | 2017-07-04 | 쩡모쩐 | Generater OAP |
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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: 20120222 Termination date: 20160620 |