CN201651234U - One-way clutch belt pulley for engine mechanical pressure booster - Google Patents
One-way clutch belt pulley for engine mechanical pressure booster Download PDFInfo
- Publication number
- CN201651234U CN201651234U CN2010201166143U CN201020116614U CN201651234U CN 201651234 U CN201651234 U CN 201651234U CN 2010201166143 U CN2010201166143 U CN 2010201166143U CN 201020116614 U CN201020116614 U CN 201020116614U CN 201651234 U CN201651234 U CN 201651234U
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- CN
- China
- Prior art keywords
- wheel hub
- clutch ring
- transmission shaft
- power wheel
- clutch
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- 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 - Lifetime
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Abstract
The utility model relates to a one-way clutch belt pulley for an engine mechanical pressure booster, the belt pulley comprises a transmission pulley hub and a transmission shaft, the improvement of the utility model is characterized in that, one one-way clutch is arranged between the transmission pulley hub and the transmission shaft; the one-way clutch comprises a clutch ring barrel, the internal barrel wall of the clutch ring barrel is evenly provided with more than six volume slots along the axial direction, a rolling column and an elastic part are arranged in each volume slot, the radial side wall of the volume slot corresponding to the rolling column is an inclined surface; the outer cylindrical surface of the clutch ring barrel and the inner wall of the transmission pulley hub are in the interference fit, bearings are respectively arranged at two axial end surfaces; the transmission shaft is a cylindrical transmission shaft barrel and is arranged in the clutch ring barrel coaxially, the transmission shaft and the clutch ring are in the sliding fit. The utility model has beneficial technical effects that the rotating speed fluctuations of the mechanical pressure booster and the accessories during operating of the engine can be decreased, thereby reducing the noise during operating of the engine, improving the service lives of the mechanical pressure booster and the accessories, and reducing the oil consumption.
Description
Technical field
The utility model belongs to a kind of belt pulley, is specifically related to be used for the belt pulley of engine mechanical pressurized machine.
Background technique
Along with the continuous development of automotive engineering, motor car engine more and more presents the characteristics of miniaturization, lightweight, high efficiency.Under prior art, engine driven supercharging is more and more used as a kind of technological scheme of effective lifting engine power.Mechanical supercharger adopts belt directly to drive work by engine crankshaft, and pressurized air makes the gas gross that at every turn enters cylinder increase, thereby promotes burning, realizes the lifting of engine power.Present most of engine mechanical pressurized machine and annex adopt same group of belt train to drive.As shown in Figure 4, under prior art, the mechanical supercharger front end all adopts conventional belt wheel transferring power.The conventional belt wheel is mainly a power wheel hub 9, this wheel hub 9 has center slotted eye 9a and mechanical supercharger transmission beam barrel 8 matches, install by be threaded (as Fig. 5) or interference fit, on the outer circumferential face of wheel hub 9, have the parallel frictional groove 9a of multiple tracks.When the drivign belt 11 that is formed with parallel teeth 11a on the inner side surface is set on the outer circumferential face of power wheel hub 9, can cater in the frictional groove 9a of power wheel hub 9 with this parallel teeth 11a, produce bigger frictional force, thus transferring power smoothly.Other accessory components also adopt same belt pulley to carry out transmission of power.In the using process of reality, owing to exist vibration to make the rotating speed of bent axle have certain fluctuation in the time of motor running itself, drive train for mechanical supercharger and annex, the fluctuation of rotating speed can make belt produce bigger spring, the variation of speed makes belt pulley have rotating trend in addition, causes the speed fluctuation of mechanical supercharger and accessory components.Here have following shortcoming: 1, belt exists bigger spring can cause the reduction of belt train transmission efficiency, and bigger in addition amplitude may produce the dislocation of belt and fly off, and has influenced the overall security of train transmission; 2, the fluctuation of rotating speed can influence the uniformity of mechanical supercharger and accessory components running, makes the running of equipment produce bigger vibration, worsens its working state, influences working life; 3, simultaneously, the vibration of the shake of belt, mechanical supercharger and accessory components can produce bigger noise, also is a remarkable shortcoming of conventional belt wheel construction; And because the rotating speed of mechanical supercharger is higher, generally between 10000-30000 rev/min, and load is very big, and it is fairly obvious that therefore above shortcoming will show on mechanical supercharger.As seen, the vibration during engine running has produced very big influence to Security, durability and the applicability of accessory wheel system, and therefore reducing the influence of vibrating the accessory belt train can address this problem significantly.
Summary of the invention
Vibration when solving engine running is to the influence of Security, durability and the applicability of accessory wheel system, and the utility model provides a kind of overrunning clutch belt pulley that is used for the engine mechanical pressurized machine.
It is as follows that concrete structure improves technological scheme:
The overrunning clutch belt pulley that is used for the engine mechanical pressurized machine comprises power wheel hub and transmission shaft, and power wheel hub is the cylindrical tube shape that axially connects, and the power wheel hub outer circumferential face is provided with the frictional groove that cooperates with drivign belt.Be provided with overrunning clutch between described power wheel hub 1 and the transmission shaft; Described overrunning clutch comprises clutch ring tube 2, and clutch ring tube 2 inner tube walls are laid with the volume groove 2a more than six vertically, is provided with roller 3 and elastic component 4 in every volume groove 2a, and the volume groove 2a radial sidewalls corresponding with roller 3 is inclined-plane 2b; Be interference fit between the inwall of clutch ring tube 2 external cylindrical surfaces and power wheel hub 1, its axial two end faces is respectively equipped with bearing, is interference fit between the inwall of bearing top circle side face and power wheel hub 1; Described transmission shaft is the transmission beam barrel 7 of cylindrical tube shape, the coaxial clutch ring tube 2 that is positioned at, and for movingly.
Be respectively equipped with back-up ring between described clutch ring tube 2 axial both ends of the surface and the bearing.
The utility model applies to overrunning clutch on the belt pulley of motor car engine mechanical supercharger and accessory components (including but not limited to generator, power steering pump, air condition compressor, oil pump), its useful technique effect is to reduce the fluctuation of speed of mechanical supercharger and accessory components in the engine operation process, thereby the noise when reducing the motor operation, improves the working life of mechanical supercharger and accessory components and reduce the oil consumption of car load.Concrete useful technique effect embodies in the following areas:
1, the running of mechanical supercharger is more steady, has reduced wearing and tearing and vibration that mechanical supercharger brings owing to the fluctuation of speed, thereby has reduced the noise of mechanical supercharger itself and prolonged its working life;
2, the energy loss that causes owing to the fluctuation of speed is absorbed by the elastic component in the belt pulley 4 greatly and returns to driving component, thereby reduces the energy consumption of motor, promotes the fuel economy of motor;
3, simultaneously, because mechanical supercharger does not fluctuate with drivign belt during the fluctuation of speed, so the suffered reverse resistance of belt reduces, and makes that beating of belt obtained improving significantly, reduced the noise of accessory wheel system and its Security is got a promotion.
Description of drawings
Fig. 1 is the STRUCTURE DECOMPOSITION figure of overrunning clutch belt pulley;
Fig. 2 is the structure sectional view of overrunning clutch belt pulley;
Fig. 3 is the action partial enlarged drawing of Fig. 2;
Fig. 4 is the mounting structure exploded view (scyewed joint) of conventional belt wheel;
Fig. 5 is a scyewed joint principle sectional view;
Fig. 6 is for adopting the fluctuation of speed comparison diagram of pressurized machine rotating shaft and belt wheel hub behind the overrunning clutch belt pulley.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1, Fig. 2 and Fig. 3, the overrunning clutch belt pulley that is used for the engine mechanical pressurized machine comprises power wheel hub 1 and transmission beam barrel 7, power wheel hub 1 is the cylindrical tube shape that axially connects, power wheel hub 1 outer circumferential face is provided with the frictional groove 1a that cooperates with drivign belt 11, frictional groove 1a can with drivign belt 11 inboard parallel teeth 11a wedging mutually, by frictional force with the rotating shaft of transmission of power to mechanical supercharger.
Between power wheel hub 1 and the transmission beam barrel 7 overrunning clutch is installed, this overrunning clutch comprises clutch ring tube 2, clutch ring tube 2 inner tube walls are laid with the volume groove 2a more than six vertically, in every volume groove 2a roller 3 and elastic component 4 are housed, elastic component 4 one ends are butted on the cell wall of volume groove 2a, the other end withstands roller 3, and the volume groove 2a radial sidewalls corresponding with roller 3 is inclined-plane 2b.Clutch ring tube 2 places in the mesopore 1b of power wheel hub 1, is connected with power wheel hub 1 by interference fit; Its axial two end faces is separately installed with bearing 6A and bearing 6B, is interference fit between the outer peripheral surface of bearing 6A and bearing 6B and the inwall of power wheel hub 1; Be respectively equipped with back-up ring 5A and back-up ring 5B between clutch ring tube 2 axial both ends of the surface and bearing 6A and the bearing 6B, in order to prevent deviating from of roller 3 and elastic component 4.Transmission beam barrel 7 is a cylindrical tube shape, the coaxial clutch ring tube 2 that is positioned at, and for movingly, the inner peripheral surface interference fit of its outer peripheral surface and bearing 6A, bearing 6B, under normal circumstances, there is the gap between the inner peripheral surface of the outer circumferential face of transmission beam barrel 7 and back-up ring 5A, back-up ring 5B and clutch ring tube 2 and contacts with roller 3.Center slotted eye 7a on the transmission beam barrel 7 matches with the mechanical supercharger rotating shaft.
Working principle of the present utility model is as follows:
When this overrunning clutch belt pulley moves with correct transmission direction, it is power wheel hub 1 clockwise direction when running in Fig. 2, the wedge surface locking that this moment, roller 3 was made up of the outer peripheral surface of inclined-plane 2b on the clutch ring tube 2 and transmission beam barrel 7, thus power is passed to it the mechanical supercharger rotating shaft of assembling mutually via transmission beam barrel 7 smoothly.
When the rotating speed of accessory wheel system fluctuates decline suddenly, the rotating speed of power wheel hub 1 will lower thereupon, because the trend of motion before transmission this moment beam barrel 7 also has under action of inertia, therefore power wheel hub 1 will produce counterrotating with respect to transmission beam barrel 7, it is power wheel hub 1 rotation counterclockwise among Fig. 2, this moment, elastic component 4 was compressed, roller 3 and the wedge surface of being made up of the outer peripheral surface of inclined-plane 2b and transmission beam barrel 7 get loose, as 3 ' position among Fig. 3, be in " no power transmission state " between power wheel hub 1 and the transmission beam barrel 7 this moment, the mechanical supercharger rotating shaft will can not be forced to slow down, and be rotated further according to inertia; When the rotating speed of accessory wheel system becomes when ging up for fluctuation from the decline state that fluctuates before, power wheel hub 1 will move clockwise with respect to transmission beam barrel 7 this moment, lock thereby will be pushed in the wedge surface once more, drive transmission beam barrel 7 and mechanical supercharger motion thereby return " power transmission state " from the roller 3 that wedge surface gets loose.
In above fluctuation of speed process, because relatively rotating between power wheel hub 1 and the transmission beam barrel 7, the fluctuation of speed that acts on the mechanical supercharger is absorbed by elastic component 4 to a great extent, therefore the operation of mechanical supercharger is comparatively steady, vibrate also less, as shown in Figure 6, after having used the overrunning clutch belt pulley, the fluctuation of speed situation of mechanical supercharger has obtained tangible improvement.
Claims (2)
1. the overrunning clutch belt pulley that is used for the engine mechanical pressurized machine, comprise power wheel hub and transmission shaft, power wheel hub is the cylindrical tube shape that axially connects, the power wheel hub outer circumferential face is provided with the frictional groove that cooperates with drivign belt, it is characterized in that: be provided with overrunning clutch between described power wheel hub (1) and the transmission shaft; Described overrunning clutch comprises clutch ring tube (2), clutch ring tube (2) inner tube wall is laid with the volume groove (2a) more than six vertically, be provided with roller (3) and elastic component (4) in every volume groove (2a), volume groove (2a) radial sidewalls corresponding with roller (3) is inclined-plane (2b); Be interference fit between the inwall of clutch ring tube (2) external cylindrical surface and power wheel hub (1), its axial two end faces is respectively equipped with bearing, is interference fit between the inwall of bearing top circle side face and power wheel hub (1); Described transmission shaft is the transmission beam barrel (7) of cylindrical tube shape, coaxially is positioned at clutch ring tube (2), and for movingly.
2. the overrunning clutch belt pulley that is used for the engine mechanical pressurized machine according to claim 1 is characterized in that: be respectively equipped with back-up ring between axial both ends of the surface of described clutch ring tube (2) and the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201166143U CN201651234U (en) | 2010-02-11 | 2010-02-11 | One-way clutch belt pulley for engine mechanical pressure booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201166143U CN201651234U (en) | 2010-02-11 | 2010-02-11 | One-way clutch belt pulley for engine mechanical pressure booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651234U true CN201651234U (en) | 2010-11-24 |
Family
ID=43116469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201166143U Expired - Lifetime CN201651234U (en) | 2010-02-11 | 2010-02-11 | One-way clutch belt pulley for engine mechanical pressure booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201651234U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278394A (en) * | 2011-07-21 | 2011-12-14 | 西南大学 | Bearing type overrunning clutch |
| CN102537276A (en) * | 2012-03-08 | 2012-07-04 | 李凯 | Elastic buffer device |
| CN106438712A (en) * | 2016-10-18 | 2017-02-22 | 深圳市亿恒精密科技有限公司 | Self-lubricated one-way bearing |
-
2010
- 2010-02-11 CN CN2010201166143U patent/CN201651234U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278394A (en) * | 2011-07-21 | 2011-12-14 | 西南大学 | Bearing type overrunning clutch |
| CN102278394B (en) * | 2011-07-21 | 2014-12-24 | 西南大学 | Bearing type overrunning clutch |
| CN102537276A (en) * | 2012-03-08 | 2012-07-04 | 李凯 | Elastic buffer device |
| CN106438712A (en) * | 2016-10-18 | 2017-02-22 | 深圳市亿恒精密科技有限公司 | Self-lubricated one-way bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHANG SHUPING Free format text: FORMER OWNER: HEFEI JIASUN TECHNOLOGY CO., LTD. Effective date: 20120914 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120914 Address after: 230088, Lanshi garden, No. 299, camphor Road, Shushan District, Anhui, Hefei 30-103, China Patentee after: Zhang Shuping Address before: Tianda high tech Zone 230088 Hefei Road, Anhui province No. 71 Huayi Science Park F block two building Patentee before: Hefei Jiasun Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: HEFEI JIASUN PRECISION MACHINERY MANUFACTURING CO. Free format text: FORMER OWNER: ZHANG SHUPING Effective date: 20121231 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121231 Address after: 230088, No. 105, Anhui waterway, 252 hi tech Zone, Anhui, Hefei, Hefei automotive engineering technology research and Development Center Patentee after: Hefei Jiaxun Precision Machinery Manufacturing Co.,Ltd. Address before: 230088, Lanshi garden, No. 299, camphor Road, Shushan District, Anhui, Hefei 30-103, China Patentee before: Zhang Shuping |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |