CN104863990A - Friction type torque limiting structure - Google Patents
Friction type torque limiting structure Download PDFInfo
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- CN104863990A CN104863990A CN201510283675.6A CN201510283675A CN104863990A CN 104863990 A CN104863990 A CN 104863990A CN 201510283675 A CN201510283675 A CN 201510283675A CN 104863990 A CN104863990 A CN 104863990A
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- spacing shaft
- torque
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- limiting structure
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Abstract
The invention relates to a friction type torque limiting structure, in particular to a torque overload protection device, namely, when transmission torque exceeds a certain limited value, the friction type torque limiting structure slips to provide overload protection for equipment, and belongs to the technical field of mechanical equipment. The friction type torque limiting structure comprises a spacing shaft, friction plates, a transmission piece and a torque adjustment piece, wherein the spacing shaft neck portion of the spacing shaft is sleeved with the transmission piece, on end of the spacing shaft neck portion of the spacing shaft is connected with the torque adjustment piece through an external thread, one of the friction plates is arranged between the transmission piece and a flange portion of the spacing shaft, and the other friction plate is arranged between the transmission piece and the torque adjustment piece. According to the friction type torque limiting structure, the assembly and the setting of slipping torque are easy, and occupied space is small; a compressing position is on the middle portion of each friction plate, the friction generated through pressure is uniform, the accuracy of the set overload slipping torque is high, and even if the friction type torque limiting structure is used for a long term and slipped for multiple times, the set torque repeated accuracy is still high.
Description
Technical field
The present invention relates to a kind of friction type torque limiting structure; a torque overload protection device specifically, namely when transmitting torque exceeds a certain limit value, skidding appears in friction type torque limiting structure; for equipment provides overload protection, belong to mechanical equipment technical field.
Background technique
Torque overload protection is usually used in transmission of power, be arranged on powerdriven driving and driven between, when there is torque overload, torque limiting structure just can produce relative sliding, thus the safety of effective protection driving machine and driven machine.
As shown in Figure 1, common friction type torque limiting device is by hold-down bolt E, applies pressure to driving component D two side flange, pressing plate C and friction plate B, thus makes driving component D transmitting torque in setting torque range, produces and skid when exceeding setting moment of torsion.There is following defect in this structure: because hold-down bolt E distance friction plate B center is far away, cause flange, pressing plate C, impacting force between friction plate B and driving component D is uneven distribution, larger near hold-down bolt E place frictional force, and less away from hold-down bolt E place frictional force, driving component D skids after certain number of times and causes the moment of torsion set to produce larger change.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, thus a kind of friction type torque limiting structure is provided, its structure is simple, assembling is easy, the setting of breakaway torque value is convenient, accurate, repeatability is good, is applicable to the occasion that installing space is narrow and small, transmitting torque is comparatively large, breakaway torque required precision is higher.
According to technological scheme provided by the invention, a kind of friction type torque limiting structure comprises spacing shaft, friction plate, driving component and moment of torsion adjustment assembly, it is characterized in that: spacing shaft comprises spacing shaft collar, spacing shaft collar outer surface is provided with the spacing shaft flange part protruding spacing shaft collar outer surface, spacing shaft collar and spacing shaft flange part integrally formed; Driving component is sleeved on the spacing shaft collar of spacing shaft, spacing shaft collar one end of spacing shaft connects moment of torsion adjustment assembly by outside thread, a friction plate is equipped with between driving component and spacing shaft flange part, between driving component and moment of torsion adjustment assembly, driving component and friction plate are pressed in the spacing shaft flange part of spacing shaft by moment of torsion adjustment assembly, can regulate the impacting force between driving component and friction plate by adjustment moment of torsion adjustment assembly; Described moment of torsion adjustment assembly comprises pressing plate and round nut, and pressing plate and round nut are linked into an integrated entity by multiple attachment screw; Be provided with multiple torque setting bolt between pressing plate and round nut, each torque setting bolt is provided with a belleville spring, belleville spring between pressing plate and round nut, by torque setting bolt presses.
Further, multiple attachment screw is circumferentially uniformly distributed.
Further, multiple torque setting bolt is along the circumferential direction uniformly distributed.
Compared with the prior art the present invention has the following advantages:
Structure of the present invention is simple, compact, reasonable, and assembling and setting breakaway torque are all easy to, it is little to take up room; Compacted position is in the intermediate portion of friction plate, and the frictional force produced by pressure is comparatively even, and setting overload breakaway torque precision is high, even if Long-Time Service, repeatedly skids, and the repeatability of setting moment of torsion is still very high.
Accompanying drawing explanation
Fig. 1 is friction type torque limiting device structural drawing in prior art.
Fig. 2 is plan view of the present invention.
Fig. 3 is moment of torsion of the present invention adjustment assembly plan view.
Fig. 4 is moment of torsion of the present invention adjustment components side view.
Description of reference numerals: 1-spacing shaft flange part, 2-friction plate, 3-pressing plate, 4-belleville spring, 5-driving component, 6-attachment screw, 7-torque setting bolt, 8-round nut, 9-spacing shaft collar.
Embodiment
Embodiment in is by reference to the accompanying drawings further described by the present invention below:
As shown in Figure 2, the present invention mainly comprises spacing shaft, friction plate 2, driving component 5 and moment of torsion adjustment assembly, spacing shaft comprises spacing shaft collar 9, spacing shaft collar 9 outer surface is provided with the spacing shaft flange part 1 protruding spacing shaft collar 9 outer surface, spacing shaft collar 9 and spacing shaft flange part 1 integrally formed.
Driving component 5 is sleeved on the spacing shaft collar 9 of spacing shaft, spacing shaft collar 9 one end of spacing shaft connects moment of torsion adjustment assembly by outside thread, a friction plate 2 is equipped with between driving component 5 and spacing shaft flange part 1, between driving component 5 and moment of torsion adjustment assembly, driving component 5 and friction plate 2 are pressed in the spacing shaft flange part 1 of spacing shaft by moment of torsion adjustment assembly, can regulate the impacting force between driving component 5 and friction plate 2 by adjustment moment of torsion adjustment assembly.
As shown in Fig. 3 ~ 4, described moment of torsion adjustment assembly comprises pressing plate 3 and round nut 8, and pressing plate 3 and round nut 8 are linked into an integrated entity by multiple attachment screw 6, and multiple attachment screw 6 is circumferentially uniformly distributed.
Be provided with multiple torque setting bolt 7 between pressing plate 3 and round nut 8, multiple torque setting bolt 7 is along the circumferential direction uniformly distributed.Each torque setting bolt 7 is provided with a belleville spring 4, and belleville spring 4, between pressing plate 3 and round nut 8, is compressed by torque setting bolt 7.
In use, pre-pressing can be carried out to belleville spring 4 by attachment screw 6, to reduce the thickness of moment of torsion adjustment assembly.By screw-down torque setting bolt 7, compression belleville spring 4, makes friction plate 2 evenly produce impacting force, completes the setting of breakaway torque eventually through frictional force.
During installation, by pressing plate, belleville spring, torque setting bolt and round nut, moment of torsion adjustment assembly is assembled into by attachment screw, by integral for multiple part combination, be convenient to mounting or dismounting, also pre-pressing can be carried out by tightening attachment screw 6 pairs of belleville springs 4, to reduce the thickness of moment of torsion adjustment assembly.Then friction plate, driving component, friction plate are loaded on the spacing shaft collar of spacing shaft successively, moment of torsion of screwing on again adjustment assembly, ensure each part axial gapless, remove attachment screw, bolt is set by screw-down torque, compression belleville spring, is passed to the flange part of pressing plate, friction plate, driving component, friction plate, spacing shaft successively by impacting force, produce by compressing the setting that frictional force completes breakaway torque.
Claims (3)
1. a friction type torque limiting structure, comprise spacing shaft, friction plate (2), driving component (5) and moment of torsion adjustment assembly, it is characterized in that: spacing shaft comprises spacing shaft collar (9), spacing shaft collar (9) outer surface is provided with the spacing shaft flange part (1) protruding spacing shaft collar (9) outer surface, spacing shaft collar (9) and spacing shaft flange part (1) integrally formed; Driving component (5) is sleeved on the spacing shaft collar (9) of spacing shaft, spacing shaft collar (9) one end of spacing shaft connects moment of torsion adjustment assembly by outside thread, a friction plate (2) is equipped with between driving component (5) and spacing shaft flange part (1), between driving component (5) and moment of torsion adjustment assembly, driving component (5) and friction plate (2) are pressed in the spacing shaft flange part (1) of spacing shaft by moment of torsion adjustment assembly, can regulate the impacting force between driving component (5) and friction plate (2) by adjustment moment of torsion adjustment assembly; Described moment of torsion adjustment assembly comprises pressing plate (3) and round nut (8), and pressing plate (3) and round nut (8) are linked into an integrated entity by multiple attachment screw (6); Multiple torque setting bolt (7) is provided with between pressing plate (3) and round nut (8), each torque setting bolt (7) is provided with a belleville spring (4), belleville spring (4) is positioned between pressing plate (3) and round nut (8), is compressed by torque setting bolt (7).
2. a kind of friction type torque limiting structure as claimed in claim 1, is characterized in that: described multiple attachment screw (6) is circumferentially uniformly distributed.
3. a kind of friction type torque limiting structure as claimed in claim 1, is characterized in that: described multiple torque setting bolt (7) is along the circumferential direction uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510283675.6A CN104863990A (en) | 2015-05-28 | 2015-05-28 | Friction type torque limiting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510283675.6A CN104863990A (en) | 2015-05-28 | 2015-05-28 | Friction type torque limiting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104863990A true CN104863990A (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510283675.6A Pending CN104863990A (en) | 2015-05-28 | 2015-05-28 | Friction type torque limiting structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN104863990A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339337A (en) * | 2017-03-10 | 2017-11-10 | 利恩传动设备（常州）有限公司 | Unidirectional breakaway torque limiter |
| CN107642563A (en) * | 2016-07-22 | 2018-01-30 | 株洲时代新材料科技股份有限公司 | A kind of torque limiter |
| CN109595268A (en) * | 2019-02-11 | 2019-04-09 | 中国船舶重工集团公司第七0三研究所 | A kind of large torque rubs more super turns round protection structure |
| US10738836B2 (en) | 2016-11-30 | 2020-08-11 | Saint-Gobain Performance Plastics Rencol Limited | Adjustable torque assembly |
| CN113457828A (en) * | 2021-07-05 | 2021-10-01 | 利恩传动设备（常州）有限公司 | Torque limiter for crusher |
Citations (10)
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|---|---|---|---|---|
| GB1122575A (en) * | 1965-11-11 | 1968-08-07 | George Basil Whales | Improvements relating to couplings between two relative rotatable parts |
| US3457733A (en) * | 1967-06-16 | 1969-07-29 | Borg Warner | Torque limiter |
| CN1222658A (en) * | 1993-06-19 | 1999-07-14 | 卢克摩擦片与离合器有限公司 | Torque transfer device |
| US6120257A (en) * | 1997-03-13 | 2000-09-19 | Denso Corporation | Power transmission apparatus |
| CN201031936Y (en) * | 2006-07-20 | 2008-03-05 | 中国科学院长春光学精密机械与物理研究所 | Helical transmission gap-eliminating mechanism |
| CN101210593A (en) * | 2006-12-26 | 2008-07-02 | 上海三电贝洱汽车空调有限公司 | Torque limiter |
| CN201461812U (en) * | 2009-08-17 | 2010-05-12 | 中国船舶重工集团公司第七一三研究所 | Moment limitation safety device |
| CN102434644A (en) * | 2011-12-09 | 2012-05-02 | 上海科勒电子科技有限公司 | Overload protection transmission mechanism |
| CN202370023U (en) * | 2011-09-25 | 2012-08-08 | 三一重工股份有限公司 | Overload protection device, turbine box and grader |
| CN204704291U (en) * | 2015-05-28 | 2015-10-14 | 无锡创明传动工程有限公司 | A kind of friction type torque limiting structure |
-
2015
- 2015-05-28 CN CN201510283675.6A patent/CN104863990A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1122575A (en) * | 1965-11-11 | 1968-08-07 | George Basil Whales | Improvements relating to couplings between two relative rotatable parts |
| US3457733A (en) * | 1967-06-16 | 1969-07-29 | Borg Warner | Torque limiter |
| CN1222658A (en) * | 1993-06-19 | 1999-07-14 | 卢克摩擦片与离合器有限公司 | Torque transfer device |
| US6120257A (en) * | 1997-03-13 | 2000-09-19 | Denso Corporation | Power transmission apparatus |
| CN201031936Y (en) * | 2006-07-20 | 2008-03-05 | 中国科学院长春光学精密机械与物理研究所 | Helical transmission gap-eliminating mechanism |
| CN101210593A (en) * | 2006-12-26 | 2008-07-02 | 上海三电贝洱汽车空调有限公司 | Torque limiter |
| CN201461812U (en) * | 2009-08-17 | 2010-05-12 | 中国船舶重工集团公司第七一三研究所 | Moment limitation safety device |
| CN202370023U (en) * | 2011-09-25 | 2012-08-08 | 三一重工股份有限公司 | Overload protection device, turbine box and grader |
| CN102434644A (en) * | 2011-12-09 | 2012-05-02 | 上海科勒电子科技有限公司 | Overload protection transmission mechanism |
| CN204704291U (en) * | 2015-05-28 | 2015-10-14 | 无锡创明传动工程有限公司 | A kind of friction type torque limiting structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642563A (en) * | 2016-07-22 | 2018-01-30 | 株洲时代新材料科技股份有限公司 | A kind of torque limiter |
| US10738836B2 (en) | 2016-11-30 | 2020-08-11 | Saint-Gobain Performance Plastics Rencol Limited | Adjustable torque assembly |
| CN107339337A (en) * | 2017-03-10 | 2017-11-10 | 利恩传动设备（常州）有限公司 | Unidirectional breakaway torque limiter |
| CN107339337B (en) * | 2017-03-10 | 2022-12-20 | 利恩传动设备（常州）有限公司 | One-way slip torque limiter |
| CN109595268A (en) * | 2019-02-11 | 2019-04-09 | 中国船舶重工集团公司第七0三研究所 | A kind of large torque rubs more super turns round protection structure |
| CN113457828A (en) * | 2021-07-05 | 2021-10-01 | 利恩传动设备（常州）有限公司 | Torque limiter for crusher |
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Application publication date: 20150826 |