CN101363483B - Torquemoment delimiter with dustproof protection function - Google Patents
Torquemoment delimiter with dustproof protection function Download PDFInfo
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- CN101363483B CN101363483B CN200710044773XA CN200710044773A CN101363483B CN 101363483 B CN101363483 B CN 101363483B CN 200710044773X A CN200710044773X A CN 200710044773XA CN 200710044773 A CN200710044773 A CN 200710044773A CN 101363483 B CN101363483 B CN 101363483B
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- extension part
- torque
- belt pulley
- joint
- torque limiter
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Abstract
The invention discloses a torque restrictor with dust-proof and protective function; the torque restrictor is combined in a compressor, the compressor consists of a main shaft, a belt pulley bearing and a belt pulley, the torque restrictor consists of a torque restricting mechanism and an elastic damping mechanism, the torque restricting mechanism includes a hub, a bridging part and an outer ring; wherein, the hub is connected with the main shaft, and the bridging part is connected with the outer ring and the hub; the elastic damping mechanism includes an inner ring, the inner ring is provided with a first junction part which extends along the radial direction, the first junction part is connected with the outer ring of the torque restricting mechanism and is positioned between the torque restricting mechanism and the belt pulley, a ring-shaped radial clearance is arranged between the hub and the inner margin of the first junction part; wherein, the inner margin of the first junction part inwardly forms a ring-shaped first extension part along the radial direction, the radial clearance is shielded by the first extension part and the first extension part is provided with a layer of elastic material. The extension part can prevent the chips behind the torque restrictor from entering the belt pulley bearing through the radial clearance.
Description
Technical field
The present invention relates to a kind of torque limiter, relate in particular to torque limiter with dustproof protection function.
Background technique
Torque limiter has the occasion of many application, for example is located at motor car engine and the power transfer path that is used for the compressor of air conditioning.Typical externally controlled type variable compressor has the swash plate that is supported on obliquely on the main shaft, and the swash plate angle can change through the electrically-controlled valve of compressor.When the impact that excessive moment of torsion can be big to engine producing is broken down when making moment of torsion become big in the inside of compressor.Therefore, compressor must have overload protecting mechanism, makes that compressor and belt pulley broke away from when the inner moment of torsion of compressor was excessive, avoids the excessive impact to motor of the inner moment of torsion of compressor.And after the torque limiter fracture is thrown off compressor and power source; The delimiter bridge part branch generation of fracture bulk or granular fragment and dust not of uniform size, that splash at a high speed; Because these chip initial velocity are higher; Can wound bearing and belt pulley and produce unnecessary crackle, breach and distortion, its stress load changed cause stress to concentrate or make crackle to prolong the breach expansion; Simultaneously, will cause the belt pulley job insecurity if these chips get into belt pulley bearings, and produce abnormal noise and vibration, the destruction that in the past can cause bearing for a long time makes belt pulley and the whole power train can't proper functioning then, and engine producing is damaged.
Summary of the invention
Technical problem to be solved by this invention provides a kind of torque limiter with dustproof protection function, and chip wounded, damages belt pulley and bearing when it can prevent the torque limiter fracture.
The present invention solves the problems of the technologies described above the technological scheme that adopts to provide a kind of torque limiter with dustproof protection function; Be incorporated in the compressor; This compressor comprises a main shaft, a belt pulley bearing and a belt pulley, and this torque limiter comprises torque limiting mechanism and elastic shock attenuation mechanism.Torque limiting mechanism comprises wheel hub, bridge part and outer ring, and wherein wheel hub is connected with the main shaft of compressor, and bridge part connects outer ring and wheel hub.Damper mechanism comprises an inner ring; This inner ring has first joint that radially extends; First joint is connected with the outer ring of torque limiting mechanism, and between torque limiting mechanism and belt pulley bearing, has a circle radial clearance between the inner edge of first joint and the wheel hub.Wherein, the inner edge of first joint radially extends a circle first extension part to this radial clearance, blocking this radial clearance, and has one deck elastic material on first extension part.
In the above-mentioned torque limiter, first extension part forms curved part to belt pulley bearing one lateral buckling.
In the above-mentioned torque limiter, wheel hub has a circle jut, and with the connection bridge part, and first extension part is pressed close to this jut.
In the above-mentioned torque limiter, also has a radial distance between first extension part and the wheel hub.
In the above-mentioned torque limiter; The inner ring of damper mechanism also has one second joint; Second joint is located at a side of first joint; Its inner rim is radially extended a circle second extension part to above-mentioned radial clearance, and second extension part and first extension part have one deck elastic material side by side on second extension part.
In the above-mentioned torque limiter, second connection part is between first joint and torque limiting mechanism.
In the above-mentioned torque limiter, second extension part forms curved part to belt pulley bearing one lateral buckling.
In the above-mentioned torque limiter, radially to above-mentioned radial clearance one circle the 3rd extension part, the 3rd extension part and first extension part are side by side for the inner edge of first joint.The 3rd extension part can be to be made up of elastic material.
In the above-mentioned torque limiter, elastic material can comprise rubber or resin.
Therefore; The present invention is through extending at least one circle extension part in the inner edge of the inner ring of the damper mechanism radial clearance between the wheel hub of itself and torque limiting mechanism; To block this radial clearance; Thereby stop the post-rift chip of torque limiter to get in belt pulley bearing and destroy belt pulley bearing and belt pulley, more avoid because the infringement that the damage of belt pulley further causes motor, improve the overall security and the reliability of compressor and torque limiter thus through this radial clearance.
Description of drawings
For let above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, elaborate below in conjunction with the accompanying drawing specific embodiments of the invention, wherein:
Fig. 1 is the sectional view of the torque limiter of first embodiment of the invention.
Fig. 2 is a torque limiter proper functioning schematic representation.
Fig. 3 is the bridge joint position fracture schematic representation of torque limiter.
Fig. 4 is the enlarged diagram at the local I place of Fig. 1.
Fig. 5 is the sectional view of the torque limiter of second embodiment of the invention.
Fig. 6 is the sectional view of the torque limiter of third embodiment of the invention.
Fig. 7 A is the plane view of the damper mechanism of torque limiter of the present invention.
Fig. 7 B is the damper mechanism of torque limiter of the present invention and the plane view of torque limiting mechanism.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is elaborated.
Fig. 1 is the sectional view of the torque limiter of first embodiment of the invention.As shown in Figure 1, torque limiter is incorporated in the compressor 100, and this compressor 100 comprises a main shaft 4, a belt pulley bearing 7 and a belt pulley 1.Torque limiter comprises elastic shock attenuation mechanism 2 and torque limiting mechanism 3 (as shown in Figure 2).Damper mechanism 2 further comprises outer ring 2a, inner ring 2c and elastic shock attenuation material 2b; Wherein outer ring 2a is connected with compressor pulley 1 through bolt 6; Inner ring 2c is connected with torque limiting mechanism 3 through rivet 5, fills elastic shock attenuation material 2b between inner ring 2c and outer ring 2a.Please combine shown in Figure 2ly, torque limiting mechanism 3 further comprises wheel hub 3a, bridge part 3b and outer ring 3c.Wherein, wheel hub 3a is connected with main shaft 4 with spline 4a through spline 3d, and the outer ring 3c of torque limiting mechanism is connected with the inner ring 2c of damper mechanism 2 through rivet 5, and bridge part 3b connects outer ring 3c and wheel hub 3a.
Please combine Fig. 1 to consult local enlarged diagram shown in Figure 4, and see also shown in Fig. 7 A, Fig. 7 B.Wherein Fig. 7 A illustrates the plane view of damper mechanism 2 separately, and Fig. 7 B illustrates the plane view after mounting torque limits mechanism, and dotted portion is represented the sightless part of torque limiting mechanism.The inner ring 2c of damper mechanism 2 comprises the support 2d that extends vertically, and the first joint 2e that radially extends, and support 2d is in order to supporting elastic shock attenuation material 2b, and the outer rim of the first joint 2e is connected with support 2d.In addition, the first joint 2e is connected with the outer ring 3c of torque limiting mechanism 3 through rivet 5, and the first joint 2e is between the outer ring of torque limiting mechanism 3 3c and belt pulley bearing 7.
Under common situation, inner edge 201 and the wheel hub 3a of the first joint 2e has a circle radial clearance d1, and this radial clearance d1 can cause chip to get in the belt pulley bearing 7.And key points in design of the present invention is, radially to radially forming a circle first extension part 202 in the gap d 1, this first extension part 202 can block radial clearance d1, from gap d 1, gets into belt pulley bearing 7 to stop chip from the inner edge 201 of the first joint 2e.Have one deck elastic material 203 on first extension part 202, elastic material 203 can comprise rubber or resin.
In the present embodiment, first extension part 202 is preferably to belt pulley bearing 7 one lateral bucklings, to form curved part as shown in Figure 1.Secondly, wheel hub 3a has a circle jut 301, and connecting bridge part 3b, and the first crooked extension part 202 is pressed close to jut 301, surrounding this jut, but not contact with it.In addition, this first extension part 202 has one section small radial distance, d 2 from the main body of wheel hub 3a, and this radial distance, d 2 also makes first extension part 202 not contact with wheel hub 3a.Specify the effect of first extension part 202 below.
As shown in Figure 3, belt pulley 1 passes to torque limiting mechanism 3 through damper mechanism 2 with moment of torsion.Behind the moment of torsion overrate of the inside of compressor 100, the bridge part 3b of torque limiting mechanism 3 ruptures, and makes belt pulley 1 and main shaft 4 throw off.In this process, the high speed chip that bridge part 3b fracture produces can splash.Because the existence of first extension part 202 between torque limiting mechanism 3 and belt pulley bearing 7; Can, the torque limiter fracture significantly reduce the probability that the chip that splashes injures belt pulley bearing 7 and belt pulley 1 when taking place; Improve the overall security and the reliability of compressor and torque limiter, avoid because the infringement that the damage of belt pulley causes motor.In addition because first extension part 202 do not contact with wheel hub 3a, therefore after torque limiter ruptures, first extension part 202 can't with mutual friction mutually between the wheel hub 3a.
Fig. 5 is the sectional view of the torque limiter of second embodiment of the invention.As shown in Figure 5; This second embodiment is on the basis of structure shown in Figure 1; Side at the first joint 2e of the inner ring 2c of damper mechanism is provided with the second joint 2f again, and this second joint 2f for example can be between the outer ring 3c of the first joint 2e and torque limiting mechanism.The second joint 2f is connected with torque limiting mechanism 3 with the first joint 2e through rivet 5.The same with first joint, the inner edge of the second joint 2f radially forms a circle second extension part 212, the second extension parts 212 to gap d radially 1 also can form curved part, and with first extension part 202 side by side, to form double-deck protective action.In addition, also has one deck elastic material on second extension part 212.So, can prevent better that chip from damaging belt pulley bearing and belt pulley, improve mechanism whole Security and reliability.
Fig. 6 is the sectional view of the torque limiter of third embodiment of the invention.As shown in Figure 6; The 3rd embodiment is on the basis of structure shown in Figure 1; Inner edge at the first joint 2e of the inner ring 2c of damper mechanism waters solid elastic material (like rubber or resin) again; And form a circle the 3rd extension part 222 be similar to first extension part 202, this 3rd extension part 222 and first extension part 202 side by side, with formation double shielding effect.Likewise, this structure can prevent better that also the chip that splashes from damaging belt pulley bearing and belt pulley.
Therefore; Above embodiment of the present invention; Through in the inner ring inner edge of the damper mechanism radial clearance between the wheel hub of itself and torque limiting mechanism, extending at least one circle extension part; To block this radial clearance; Thereby stop the post-rift chip of torque limiter to get in belt pulley bearing and destroy belt pulley bearing and belt pulley, more avoid because the infringement that the damage of belt pulley further causes motor, improve the overall security and the reliability of compressor and torque limiter thus through this radial clearance.
Though the present invention discloses as above with preferred embodiment; Right its is not that any those skilled in the art are not breaking away from the spirit and scope of the present invention in order to qualification the present invention; When can doing a little modification and perfect, so protection scope of the present invention is when being as the criterion with what claims defined.
Claims (10)
1. the torque limiter that has dustproof protection function; Be incorporated in the compressor; This compressor comprises a main shaft, a belt pulley bearing and a belt pulley, and this torque limiter comprises torque limiting mechanism and elastic shock attenuation mechanism, and this torque limiting mechanism comprises wheel hub, bridge part and outer ring; Wherein wheel hub is connected with main shaft, and bridge part connects outer ring and wheel hub; This damper mechanism comprises an inner ring; This inner ring has first joint that radially extends; First joint is connected with the outer ring of torque limiting mechanism, and between this torque limiting mechanism and belt pulley bearing, has a circle radial clearance between the inner edge of first joint and the wheel hub; It is characterized in that,
The inner edge of said first joint radially extends a circle first extension part to described radial clearance, and has one deck elastic material on said first extension part.
2. torque limiter as claimed in claim 1 is characterized in that, said first extension part forms curved part to said belt pulley bearing one lateral buckling.
3. according to claim 1 or claim 2 torque limiter is characterized in that, said wheel hub has a circle jut, and connecting said bridge part, and said first extension part is pressed close to said jut.
4. according to claim 1 or claim 2 torque limiter is characterized in that having a radial distance between said first extension part and the said wheel hub.
5. according to claim 1 or claim 2 torque limiter; It is characterized in that; The inner ring of described damper mechanism also has one second joint, and this second joint is located at a side of first joint, and its inner rim is radially extended a circle second extension part to described radial clearance; Said second extension part and said first extension part have one deck elastic material side by side on second extension part.
6. torque limiter as claimed in claim 5 is characterized in that, said second connection part is between said first joint and said torque limiting mechanism.
7. torque limiter as claimed in claim 5 is characterized in that, said second extension part forms curved part to said belt pulley bearing one lateral buckling.
8. according to claim 1 or claim 2 torque limiter is characterized in that, the inner edge of said first joint radially extends a circle the 3rd extension part to described radial clearance, and said the 3rd extension part and said first extension part are side by side.
9. torque limiter as claimed in claim 8 is characterized in that, said the 3rd extension part is to be made up of elastic material.
10. like claim 1,6 or 9 described torque limiters, it is characterized in that said elastic material comprises rubber or resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710044773XA CN101363483B (en) | 2007-08-10 | 2007-08-10 | Torquemoment delimiter with dustproof protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710044773XA CN101363483B (en) | 2007-08-10 | 2007-08-10 | Torquemoment delimiter with dustproof protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101363483A CN101363483A (en) | 2009-02-11 |
| CN101363483B true CN101363483B (en) | 2012-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200710044773XA Expired - Fee Related CN101363483B (en) | 2007-08-10 | 2007-08-10 | Torquemoment delimiter with dustproof protection function |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110146434A1 (en) * | 2009-12-18 | 2011-06-23 | Short Keith E | Jack shaft disconnect |
| CN101818765A (en) * | 2010-04-27 | 2010-09-01 | 常州朗博汽车零部件有限公司 | Flexible connecting sucker for live spindle of automobile air conditioning |
| ES2912423T3 (en) | 2016-11-30 | 2022-05-25 | Saint Gobain Performance Plastics Rencol Ltd | Adjustable torque set |
| CN113457828B (en) * | 2021-07-05 | 2022-09-30 | 利恩传动设备（常州）有限公司 | Torque limiter for crusher |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1693729A (en) * | 2004-04-30 | 2005-11-09 | 三电有限公司 | Power transmission device |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1693729A (en) * | 2004-04-30 | 2005-11-09 | 三电有限公司 | Power transmission device |
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| CN101363483A (en) | 2009-02-11 |
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Address after: Shanghai City 200025 Madang Road No. 347 Patentee after: SANDEN HUAYU AUTOMOTIVE AIR-CONDITIONING CO., LTD. Address before: Shanghai City 200025 Madang Road No. 347 Patentee before: Sandian Beier Automobile Air-Conditioner Co., Ltd., Shanghai |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20160810 |
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| CF01 | Termination of patent right due to non-payment of annual fee |