CN202280814U - Overrunning belt pulley structure - Google Patents
Overrunning belt pulley structure Download PDFInfo
- Publication number
- CN202280814U CN202280814U CN201120182226XU CN201120182226U CN202280814U CN 202280814 U CN202280814 U CN 202280814U CN 201120182226X U CN201120182226X U CN 201120182226XU CN 201120182226 U CN201120182226 U CN 201120182226U CN 202280814 U CN202280814 U CN 202280814U
- Authority
- CN
- China
- Prior art keywords
- belt pulley
- swing arm
- motor shaft
- driving spring
- belt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model provides an overrunning belt pulley structure used for reducing vibration and noises of a system. The overrunning belt pulley structure is provided with a belt pulley, a rolling bearing, a swing arm, a pin shaft, a motor shaft and a driving spring, wherein the belt pulley is connected with the motor shaft through the rolling bearing; and the swing arm is connected with the motor shaft through the pin shaft, and an outer wall of the driving spring and the inner wall of the belt pulley are in interference fit.
Description
Technical field
The utility model relates to the engine belt pulley drive mechanism in the motor head accessory drive system, relates in particular to a kind of belt sheave structure that surmounts.
Background technique
Existing generator pulley generally is directly to link to each other with the motor shaft of generator through the mode that bolt or interference press-fit; If when motor quickens suddenly or slows down; Because the rotary inertia of the rotating part of generator own is bigger; Under action of inertia, can cause certain vibration and the noise of whole accessory drive system's generation, have influence on the life-span of each annex and the travelling comfort of vehicle ride.
The model utility content
The utility model is exactly to propose in view of the above problems; It is a kind of when engine speed is suddenlyd change that its purpose is to provide; The interference that can avoid the rotating speed sudden change to cause; Improve the working efficiency of motor head accessory systems such as generator, water pump, compressor, reduce system vibration and noise surmount belt sheave structure.
The utility model surmount belt sheave structure; Have belt pulley, rolling bearing, swing arm, bearing pin, motor shaft and driving spring; Above-mentioned belt pulley connects above-mentioned motor shaft via above-mentioned rolling bearing; Wherein, above-mentioned swing arm is connected with above-mentioned motor shaft via above-mentioned bearing pin, the inwall interference fit of the outer wall of above-mentioned driving spring and above-mentioned belt pulley.
Surmounting in the belt sheave structure of the utility model, preferred above-mentioned driving spring is provided with the opening of wedge shape, and above-mentioned opening is passed in above-mentioned swing arm, fits with the spiral wall of above-mentioned driving spring, to drive above-mentioned swing arm through above-mentioned opening, drives above-mentioned motor shaft and rotates.
Surmounting in the belt sheave structure of the utility model, the size of preferred above-mentioned opening changes according to the different rotary direction of above-mentioned swing arm.
Surmounting in the belt sheave structure of the utility model, preferably be provided with dust cover in the end of above-mentioned rolling bearing.
According to the utility model, the belt sheave structure that surmounts of a kind of vibration that can reduce system and noise is provided.
Description of drawings
Fig. 1 is the schematic cross-section that expression surmounts the structure of belt pulley.
Embodiment
The belt sheave structure that surmounts of the utility model mainly is made up of with driving spring 7 belt pulley 1, rolling bearing 2, swing arm 3, bearing pin 4, motor shaft 6.
Particularly, as shown in Figure 1, work as engine stop working, when the belt pulley 1 of generator remained static, the contractile force effect of driving spring 7 itself made spring angle and its applying of swing arm 3 along driving spring 7.When the motor accelerated service, belt drives belt pulley 1 quickens to rotate clockwise, under frictional force action, drives driving spring 7 and clockwise rotates, and the inwall at the spring angle place of driving spring 7 promotes swing arm 3 and clockwise rotates around bearing pin 4.Because this moment, motor shaft 6 remained static, under the effect of inertia, swing arm 3 is rotated, and the opening of driving spring 7 increases, and driving spring 7 increases with belt pulley 1 inner wall pressure, causes bearing pin 4 that power is passed to motor shaft 6, and drive motor axle 6 rotates.When engine retard, the rotating speed of motor shaft 6 is higher than belt pulley 1 rotating speed, and swing arm 3 can be activated the contractile force of spring 7 and rotate counterclockwise, and this moment, the opening of driving spring 7 dwindled, and reduced with the frictional force of belt pulley 1 inwall, got back to state shown in Figure 1.When the moment of inertia of motor shaft 6 during greater than the friction torque of driving spring 7 and belt pulley 1, driving spring 7 produces slide relative with belt pulley 1 and realizes transcendent function.
The utility model surmount belt sheave structure, can also dust cover 5 be set in the end of the rolling bearing that surmounts belt sheave structure 2, prevent the influence of dust to cooperating structure.
According to the belt sheave structure that surmounts of the utility model, when engine speed is suddenlyd change, the interference that can avoid the rotating speed sudden change to cause, the working efficiency of motor head accessory systems such as raising generator, water pump, compressor, the vibration and the noise of reduction system.
Claims (4)
1. one kind surmounts belt sheave structure, has belt pulley, rolling bearing, swing arm, bearing pin, motor shaft and driving spring, and said belt pulley connects said motor shaft via said rolling bearing, it is characterized in that:
Said swing arm is connected with said motor shaft via said bearing pin,
The inwall interference fit of the outer wall of said driving spring and said belt pulley.
2. the belt sheave structure that surmounts according to claim 1 is characterized in that said driving spring is provided with the opening of wedge shape; Said opening is passed in said swing arm; Fit with the spiral wall of said driving spring,, drive said motor shaft and rotate to drive said swing arm through said opening.
3. the belt sheave structure that surmounts according to claim 2 is characterized in that the size of said opening changes according to the different rotary direction of said swing arm.
4. according to each described belt sheave structure that surmounts in the claim 1～3, it is characterized in that the end of said rolling bearing is provided with dust cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120182226XU CN202280814U (en) | 2011-05-25 | 2011-05-25 | Overrunning belt pulley structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120182226XU CN202280814U (en) | 2011-05-25 | 2011-05-25 | Overrunning belt pulley structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280814U true CN202280814U (en) | 2012-06-20 |
Family
ID=46226983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120182226XU Expired - Fee Related CN202280814U (en) | 2011-05-25 | 2011-05-25 | Overrunning belt pulley structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280814U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996759A (en) * | 2012-10-30 | 2013-03-27 | 无锡鸿声铝业有限公司 | Motor belt pulley |
| CN103790988A (en) * | 2012-10-31 | 2014-05-14 | 江苏南方轴承股份有限公司 | Coupling and tuning belt wheel for start-stop all-in-one machine |
| CN103790986A (en) * | 2012-10-31 | 2014-05-14 | 江苏南方轴承股份有限公司 | Coupling tuning belt wheel for starting-stopping system |
| CN104235369A (en) * | 2014-09-15 | 2014-12-24 | 成都嘉陵华西光学精密机械有限公司 | Fully-sealed dustproof structure of fixed belt tension pulley component |
-
2011
- 2011-05-25 CN CN201120182226XU patent/CN202280814U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996759A (en) * | 2012-10-30 | 2013-03-27 | 无锡鸿声铝业有限公司 | Motor belt pulley |
| CN103790988A (en) * | 2012-10-31 | 2014-05-14 | 江苏南方轴承股份有限公司 | Coupling and tuning belt wheel for start-stop all-in-one machine |
| CN103790986A (en) * | 2012-10-31 | 2014-05-14 | 江苏南方轴承股份有限公司 | Coupling tuning belt wheel for starting-stopping system |
| CN104235369A (en) * | 2014-09-15 | 2014-12-24 | 成都嘉陵华西光学精密机械有限公司 | Fully-sealed dustproof structure of fixed belt tension pulley component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20140525 |