CN202048116U - Torsion delimiter - Google Patents
Torsion delimiter Download PDFInfo
- Publication number
- CN202048116U CN202048116U CN2010206751158U CN201020675115U CN202048116U CN 202048116 U CN202048116 U CN 202048116U CN 2010206751158 U CN2010206751158 U CN 2010206751158U CN 201020675115 U CN201020675115 U CN 201020675115U CN 202048116 U CN202048116 U CN 202048116U
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- plate
- torque limiter
- fastening piece
- torsion
- driving component
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Abstract
A torsion delimiter has a torsion delimiting function, and simultaneously has an anti-loosening structure so that the work stability of the torsion delimiter is increased. The torsion delimiter comprises a transmission part connected between a driving part and a power input component of a compressor. A plurality of fasteners which connect the driving part with the transmission part are peripherally distributed on the driving part and the transmission part, and the transmission part and the power input component of the compressor are in removable connection when in over loading. The torsion delimiter is characterized by further comprising a plate, the fasteners are mutually connected by the aid of the plate, and the plate has a structure for strengthening pretightening force of the fasteners.
Description
Technical field
The utility model relates to a kind of power transmitting deice of used for automobile air conditioning compressor, removes the torque limiter that connects during particularly a kind of the overload.
Background technique
The externally controlled type variable compressor have one tilt be supported on swash plate on the main shaft, the swash plate angle can change by the electrically-controlled valve of compressor.Break down when making moment of torsion become big when the inside of externally controlled type variable compressor, excessive moment of torsion can produce big impact to motor.Therefore, compressor must have overload protecting mechanism, and when making the moment of torsion of compressor inside excessive, compressor and belt pulley break away from, and avoids the excessive impact to motor of the inner moment of torsion of compressor.
Application number is CN200610132111.3, notice of authorization number is the Chinese patent application " power transmission " of CN100458205C, disclosed a kind of torque limiter of compressor, it comprises the belt pulley of driving side, the compressor of slave end, and the rotation transmission member that belt pulley and compressor are linked.Impact between one damper mechanism available buffer rotation transmission member and the belt pulley.Damper mechanism comprises a plurality of nuts and the yielding rubber that is contained in the belt pulley, and a plurality of nuts are linked the all-in-one-piece sheet metal.Lock screw is tightened in the fixing part and the sheet metal of transmission member on the nut.
Sheet metal can prevent that a plurality of nuts from skew or inclination taking place separately, can send the power from belt pulley to each nut equably, and a plurality of nuts are kept strokes, and disperses stressed.
In the above-mentioned torque limiter, vibration when a plurality of lock screws are subjected to the pulling force of conveyer and compressor operating, getting off for a long time, easily and between the nut generation is loosening gradually, and screw was swung when screw was subjected to pulling force and vibration then, and the torque limiter working stability reduces.
The model utility content
The purpose of this utility model is to provide a kind of torque limiter, and it has the function of torque limiting, has anti-loose structure simultaneously, to improve the torque limiter working stability.
Torque limiter of the present utility model, comprise the driving component that is connected between actuator and the compressor power input block, the a plurality of fastening pieces that are connected with driving component in the circumferential distribution of actuator and driving component, with actuator, be connected to the departing connection of when overload between driving component and the compressor power input block, be characterized in: this torque limiter comprises also and being provided with the interconnective plate of these a plurality of fastening pieces that this plate provides the structure that strengthens these a plurality of fastening piece pretightening forces.
Described torque limiter, its further characteristics be, plate quantity is identical with fastening piece, and around same sense of rotation, the end of previous plate is to be stacked on the end of a back plate, and two plate overlapping end are fixedly connected by this fastening piece, thereby form described structure.
Described torque limiter, its further characteristics are that each this plate is the elongated plates that the end has circular arc.
Described torque limiter, its further characteristics are that contact surface has at least one to be the roughening treatment surface between fastening piece, driving component and the plate.
Described torque limiter, its further characteristics are that the surface roughness of plate is greater than Ra3.2.
Described torque limiter, its further characteristics are to be provided with flexible ring-type convex tendon around the fastening piece mounting hole that passes for fastening piece on the plate.
Described torque limiter, its further characteristics are that described fastening piece is bolt and nut component or rivet.
Because this plate provides the structure that strengthens these a plurality of fastening piece pretightening forces, under the situation that the fastening piece pretightening force increases, fastening piece is not easy to produce loosening, thereby can improve the torque limiter working stability.The mode that increases pretightening force has multiple.In the further characteristics of the utility model, around same sense of rotation, the end of previous plate is to be stacked on the end of a back plate, two plate overlapping end are fixedly connected by this fastening piece, then every block of plate under nature and fastening piece tighten and be an angle between the face, tighten the back angle and disappear, still there is a restoring force in palette, this restoring force acts on and makes frictional force increase on the face of tightening, thereby strengthens the pretightening force of fastening piece, reaches locking purpose; In the further characteristics of the utility model, carry out roughening at fastener surface and handle, also can strengthen the pretightening force of fastening piece, reach locking purpose; In the further characteristics of the utility model, the thickness of plate hour can form the elasticity convex tendon onboard, and convex tendon produces distortion when tightening, and has restoring force, thereby strengthens the pretightening force of fastening piece, reaches locking purpose.
Description of drawings
Fig. 1 is the schematic representation of mounted torque limiter of the present utility model.
Fig. 2 is the schematic representation of connecting sheet among Fig. 1.
Fig. 3 is the schematic representation of locking plate among Fig. 1.
Fig. 4 is the sectional drawing along S-S line among Fig. 3.
Fig. 5 is another embodiment's of locking plate a sectional drawing.
Embodiment
Embodiment 1
As shown in Figure 1, torque limiter comprise the wheel hub 41 that is connected with main shaft 32 keys, as the connecting sheet 42 of driving component, grip block 43, three fastening pieces 44, locking plate or plates 45.Torque limiter is arranged on the power transfer path of motor car engine and air condition compressor.Belt pulley 30 as the actuator of compressor is installed in by bearing 31 on the front end housing 50 of compressor.Between the main shaft 32 of belt pulley 30 and compressor this torque limiter is set, to transmit the moment of torsion of belt pulley 30, the effect of this torque limiter is the transmission of cutting off moment of torsion when load is excessive.
As shown in Figure 2, connecting sheet 42 is located between wheel hub 41 and the belt pulley 30, three extension part 42A on its periphery go up and form boss 42B, be folded in respectively between wheel hub 41 and the grip block 43, boss 42B just in time is entrenched in the pit of grip block 43, and, also be provided with three through hole 42C on connecting sheet 42 peripheries by the nipple support on the wheel hub 41, be used to run through fastening piece 44.Fastening piece 44 passes the through hole of connecting sheet 42 successively and runs through hole 30A on locking plate 45, belt pulley 30 end faces, and connecting sheet 42, locking plate 45 and belt pulley 30 are fixed together.Fastening piece 44 is for being located at a screw 44A of belt pulley 30 outside end faces, and it is tightened with screw thread with a nut 44B who is located at the inboard.When moment of torsion is excessive, skids off the pit of boss 42B from grip block 43, thereby cut off the transmission of moment of torsion.
As shown in Figure 3, locking plate 45 is three elongated plates with arc end part, and the two ends of each elongated plates are provided with hole 45A and are used to run through fastening piece 44.Three block length stripe board 45 to be being triangularly arranged, the end overlaid of adjacent two boards, and be to be stacked on the end of a back elongated plates around the end of the previous elongated plates of same sense of rotation (clockwise or counterclockwise).Fastening piece 44 passes the hole at the two end part that stack together, thereby the two is connected.(S-S sectional view) as shown in Figure 4 when fastening piece 44 is not tightened, not is to be in level between the plate 45 that stacks, but horizontal by an angle.Fastening piece 44 is after tightening, and plate 45 is subjected to the impacting force of fastening piece 44, causes distortion, produces restoring force, and this restoring force is converted into the pretightening force on the fastening piece 44.
Embodiment 2
Be that with embodiment 1 difference three block length stripe board can substitute with the locking plate of an integral body, as shown in Figure 5, locking plate 45 is provided with the hole 45A corresponding with through hole 42C position and is used to run through fastening piece 44, and the thickness of locking plate 45 is to be advisable less than 1mm.Form ring-type convex tendon 45B around the 45A of hole, this convex tendon 45B can form with locking plate 45 integrated punchings.When fastening piece was not tightened, convex tendon 45B in the raw.After tightening, plate is subjected to the impacting force of fastening piece, and convex tendon 45B is extruded and flattens, and produces restoring force, is converted into the pretightening force on the fastening piece 44.
Embodiment 3
Be that with embodiment 1 difference the block length stripe board can substitute with the locking plate of an integral body, locking plate 45 is provided with the hole 45A corresponding with through hole 42C position and is used to run through fastening piece.The roughening processing has been carried out on the surface of locking plate 45, makes it roughness greater than Ra3.2, more preferably greater than Ra6.3.The method of roughening has shot-peening, etching, grinder buffing etc.The purpose of roughening is to increase frictional force, can handle the integral body of plate, also can be only to handling around the 45A of hole.
In addition, near the position of the hole 45A of position, plate 45, belt pulley 30 form a plurality of friction pairs near the through hole 42C of screw 44A, connecting sheet 42, wherein the frictional force of some friction pairs is less just easier of the relative slippage of this place's generation, therefore only carries out the roughening processing at more smooth rubbing surface and just works.Therefore above-mentioned roughening is handled and also can be made near the position through hole 42C of screw or connecting sheet by concrete condition.
Remove the means of enumerating in the various embodiments described above and also can for example adopt the polylith elongated plates to be stacked alternately, form the ring-type convex tendon around the hole 45A on the while plate, can improve pretightening force better in application arranged side by side.Fastening piece 44 is rivet also.
Claims (7)
1. torque limiter, comprise the driving component that is connected between actuator and the compressor power input block, the a plurality of fastening pieces that are connected with driving component in the circumferential distribution of actuator and driving component, with actuator, be connected to the departing connection of when overload between driving component and the compressor power input block, it is characterized in that: this torque limiter comprises also and being provided with the interconnective plate of these a plurality of fastening pieces that this plate provides the structure that strengthens these a plurality of fastening piece pretightening forces.
2. torque limiter as claimed in claim 1 is characterized in that plate quantity is identical with fastening piece, around same sense of rotation, the end of previous plate is to be stacked on the end of a back plate, and two plate overlapping end are fixedly connected by this fastening piece, thereby forms described structure.
3. torque limiter as claimed in claim 2 is characterized in that, each this plate is the elongated plates that the end has circular arc.
4. torque limiter as claimed in claim 1 is characterized in that, contact surface has at least one to be the roughening treatment surface between fastening piece, driving component and the plate.
5. torque limiter as claimed in claim 4 is characterized in that the surface roughness of plate is greater than Ra3.2.
6. torque limiter as claimed in claim 1 is characterized in that, is provided with flexible ring-type convex tendon around the fastening piece mounting hole that passes for fastening piece on the plate.
7. torque limiter as claimed in claim 1 is characterized in that, described fastening piece is bolt and nut component or rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206751158U CN202048116U (en) | 2010-12-23 | 2010-12-23 | Torsion delimiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206751158U CN202048116U (en) | 2010-12-23 | 2010-12-23 | Torsion delimiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202048116U true CN202048116U (en) | 2011-11-23 |
Family
ID=44988426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206751158U Expired - Fee Related CN202048116U (en) | 2010-12-23 | 2010-12-23 | Torsion delimiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202048116U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899668A (en) * | 2012-12-28 | 2014-07-02 | 上海三电贝洱汽车空调有限公司 | Compressor and torque limiter |
| CN106763268A (en) * | 2016-12-06 | 2017-05-31 | 安徽昊方机电股份有限公司 | A kind of air conditioning for automobiles determines torque drivers |
| CN109488703A (en) * | 2018-12-21 | 2019-03-19 | 安徽昊方机电股份有限公司 | A kind of release type overload protective device |
-
2010
- 2010-12-23 CN CN2010206751158U patent/CN202048116U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899668A (en) * | 2012-12-28 | 2014-07-02 | 上海三电贝洱汽车空调有限公司 | Compressor and torque limiter |
| CN103899668B (en) * | 2012-12-28 | 2018-02-06 | 华域三电汽车空调有限公司 | compressor and torque limiter |
| CN106763268A (en) * | 2016-12-06 | 2017-05-31 | 安徽昊方机电股份有限公司 | A kind of air conditioning for automobiles determines torque drivers |
| CN109488703A (en) * | 2018-12-21 | 2019-03-19 | 安徽昊方机电股份有限公司 | A kind of release type overload protective device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200025 Shanghai city Luwan District Madang Road No. 347 Patentee after: SANDEN HUAYU AUTOMOTIVE AIR-CONDITIONING CO., LTD. Address before: 200025 Shanghai city Luwan District Madang Road No. 347 Patentee before: Sandian Beier Automobile Air-Conditioner Co., Ltd., Shanghai |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20181223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |