CN102900787B - Limit turns round free wheel device - Google Patents
Limit turns round free wheel device Download PDFInfo
- Publication number
- CN102900787B CN102900787B CN201210334712.8A CN201210334712A CN102900787B CN 102900787 B CN102900787 B CN 102900787B CN 201210334712 A CN201210334712 A CN 201210334712A CN 102900787 B CN102900787 B CN 102900787B
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- free wheel
- wheel device
- limit
- outer shroud
- supporting sleeve
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Abstract
The invention provides a kind of limit and turn round free wheel device, relate to mechanical transmission basic part technical field in electromechanical integrated product, specifically comprise inner ring (1), wedging part (2), packing ring (3), axle bumper (4), Sealing (5), outer shroud (6), friction plate (7), flange platen (8), supporting sleeve (10), seal ring (9), cylinder stage clip (11), adjusting bolt (12), end cap (13), protecting cover (16), release bolt (17), pad (19), disc spring (20), screw (15) and latch (14), wherein, described outer shroud (6) both ends of the surface and flange platen (8) and supporting sleeve (10) to be loaded by adjusting bolt and cylinder stage clip by friction plate and make it be connected.The invention provides a kind of limit and turn round free wheel device, the various functions of free wheel device can be had, and have limit concurrently and turn round device overload reliably protecting driving component and moment equilibrium, low energy consumption, the object that driving major accident of effectively avoiding reversing occurs.
Description
Technical field
The present invention relates to mechanical transmission basic part technical field in electromechanical integrated product, particularly relate to a kind of limit and turn round free wheel device.
Background technique
Free wheel device is between prime mover and working machine or the transmission important foundation part of transmission of power Engage and disengage function between machine intimate driving shaft and driven shaft.At present along with the development of modern science and technology, application is in continuous expansion.The operating mode used is more complicated, severe, and the overload particularly happened suddenly or impact cause the fault of damage and the initiation transmission system surmounted from device.Because high-power, large inclined angle, length developing rapidly apart from upper conveying belt type conveyer and applying in recent years, adopt the mode driven more, other is correspondingly divided to be arranged in each driver element free wheel device (non-return device), because free wheel device is not affected by the manufacture of each element, alignment error, torsional stiffness and running abrasion condition on an equal basis, a certain free wheel device is made likely to bear the even whole check moment of major part when carrying out non-return effect, cause the axle of free wheel device or transmission system to damage, the major accident of reversing driving can be caused.Although selecting larger safety coefficient when designing, putting very large by being arranged on the safe clearance of the free wheel device of each unit that drives more, adopting the measure of " low load with strong power ", increasing power consumption, strengthening equipment cost, the generation of this type of accident can't be stopped.
Therefore, the urgent technical problem solved instantly is needed exactly: how can propose a kind of effective measures, to solve Problems existing in above-mentioned technology.
Summary of the invention
The invention provides a kind of limit and turn round free wheel device, the various functions of free wheel device can be had, and have limit concurrently and turn round device overload reliably protecting driving component and moment equilibrium, low energy consumption, the object that driving major accident of effectively avoiding reversing occurs.
In order to solve the problems of the technologies described above, the invention provides a kind of limit and turn round free wheel device, specifically comprise inner ring (1), wedging part (2), packing ring (3), axle bumper (4), Sealing (5), outer shroud (6), friction plate (7), flange platen (8), supporting sleeve (10), seal ring (9), cylinder stage clip (11), adjusting bolt (12), end cap (13), protecting cover (16), release bolt (17), pad (19), disc spring (20), screw (15) and latch (14), wherein, described outer shroud (6) both ends of the surface and flange platen (8) and supporting sleeve (10) to be loaded by adjusting bolt and cylinder stage clip by friction plate and make it be connected.
Further, described wedging part is voussoir or roller.
Further, certain gap is left between the cylindrical of described outer shroud and the endoporus of supporting sleeve.
Further, described friction plate be asbestos-free friction material, friction factor is 0.34.
Further, described cylinder stage clip turns round free wheel device afterburner process for limit.
Further, described disc spring turns round free wheel device releasing course for limit.
To sum up, as long as use limit of the present invention to turn round moment of torsion that free wheel device bears is within the scope of a certain limit value preset, just can fully play the function that limit turns round free wheel device, just can guarantee to limit the driving component safe and reliable operation turning round free wheel device and complete machine.Particularly in the occasion driven more, well ensure abnormal torque distribution and cause the infringement of overload.Changing by regulating and controlling the adjusting bolt of friction mechanism the moment size added on friction plate, limit being turned round torque adjusting that free wheel device bears to a certain limit value scope, avoid because heavy overload or impact cause transmission system and free wheel device to reverse driving.
Use under the working conditions such as meanwhile, this limit is turned round free wheel device and is also provided with moment of torsion releasing mechanism, is conducive to Installation and Debugging, the rotation of special circumstances low-speed reverse, and very convenient.
The present invention has compact structure, novelty; Two cover controlling mechanisms, easy to adjust, can realize multi-functional, overload and serious impact protection, safe and reliable, avoid major accident; Reduce costs, energy saving, the advantages such as economical rationality.
Accompanying drawing explanation
Fig. 1 .a is the plan view that limit of the present invention turns round overrun clutch structure;
Fig. 1 .b is that the structure side-looking that limit of the present invention turns round free wheel device partly cuts open figure;
Fig. 2 .a is the overrun clutch structure unit that limit of the present invention turns round in free wheel device composition;
Fig. 2 .b is that the present invention limits the friction cushioning mechanism unit figure turned round in overrun clutch structure;
Fig. 3 is that the present invention limits and turns round free wheel device at Dual Drive application layout schematic diagram.
Embodiment
Technological scheme of the present invention is on the architecture basics of free wheel device, ensure its function, reasonably, the major part of free wheel device is utilized fully, adopt one multiplex, another introducing limit turns round the principle of the friction cushioning mechanism in device structure, increasing on a small quantity must parts peculiar, and invention design has the function of free wheel device, has again that limit turns round the novel structure of the function of device, multifunctional novel driving component-limit turns round free wheel device concurrently.
It is core that limit of the present invention turns round wedging part in overrun clutch structure, combined friction pair, torque adjustment and release function thereof etc.Wedging part is the critical component of free wheel device, according to the working condition of its technical requirements, function and use, can design and select wedge block type or roller type, plays features.The outer shroud of clutch is a multi-purpose function, not only forms with inner ring the raceway rotating wedging part in clutch, and again as an element of friction mechanism and flange platen with support external member and form friction pair.And be different from common free wheel device and be directly fixed on support by key or bolt, without any rigid joint, but the frictional force of outer ring both ends of the surface, connected with support or its driving component by flange platen.Torque adjustment is by adjusting bolt and is adjusted within the scope of default limit value, implements by digital display spanner or other afterburning method.By release bolt, the moment of torsion being greater than limit value is applied to disc spring, implement release function.
The principle that limit of the present invention turns round free wheel device is: limit the external diameter of the internal diameter and inner ring (1) turning round the outer shroud (6) of free wheel device in the composition of free wheel device to form raceway and place wedging part, and the both ends of the surface of outer shroud (6) and flange platen (8), the interior edge face of supporting sleeve (10) and friction plate (7) are paired into friction pair, are connected to the frictional force that friction plate (7) applies by adjusting bolt (12) and cylinder stage clip (11).Simultaneously outer shroud (6) leave gap between cylindrical and supporting sleeve (10) respective interior bores, add to friction plate end force by adjusting bolt (12) adjustment cylinder stage clip, torque adjustment free wheel device can born is within the scope of a certain default limit value.
Turning round free wheel device when limit is connected in transmission system by flange platen, drives running by motor or speed reducer shaft extension.As because of stop, overload, the burst accidents such as serious impact, limit turns round free wheel device for entering non-return state, if when the moment of torsion that free wheel device at this moment wherein bears is greater than free wheel device limit value, outer shroud will overcome the friction torque between itself and friction plate, and and produce relative sliding between fixed flange platen and supporting sleeve and throw off, the part moment of torsion exceeding limit value is unloaded and shares (as many drivings) to other device of main frame, thus avoid the peak value undue concentration of whole main frame check moment of torsion to turn round on free wheel device or other driving components a certain limit, protect the transmission device safety that limit turns round free wheel device.Along with the service time of free wheel device increases, friction pair can be worn, and at this moment cylinder stage clip can give appropriate compensation, and its bearing capacity is still remained within the scope of limit value.When but if wear extent is increased to certain value, the moment of torsion that free wheel device bears drop to be less than regulation a certain limit value, turning round the normal functional reliability of free wheel device by affecting limit, even cannot normally work.Therefore, make regular check on, measure, tighten adjusting bolt, regulate friction pressure, limit is turned round moment of torsion that free wheel device bears is still within the scope of limit value.
In addition, this limit is turned round free wheel device and is also provided with moment of torsion release function mechanism, is made up of 3 releases bolt (17), supporting sleeve (10), disc spring (20) and end caps (16).
Fig. 1 .a is that limit turns round overrun clutch structure plan view, and Fig. 1 .b to be limit turn round overrun clutch structure side-looking and partly cut open figure.Indicate in figure this limit turn round free wheel device by special over running clutch and limit turn round friction mechanism cleverly, compact, rational Combination Design implementer case.That limit of the present invention turns round clear, the complete structural drawing of free wheel device.Described limit is turned round overdrive clutch implement body and is comprised inner ring (1), wedging part (2), packing ring (3), axle bumper (4), Sealing (5), outer shroud (6), friction plate (7), flange platen (8), supporting sleeve (10), seal ring (9), cylinder stage clip (11), adjusting bolt (12), end cap (13), protecting cover (16), release bolt (17), pad (19), disc spring (20), screw (15) and latch (14), wherein, described outer shroud (6) is not directly be fixed on support (frame), and with support without there being rigid joint, outer shroud both ends of the surface and flange platen (8) and supporting sleeve (10) to be loaded by adjusting bolt and cylinder stage clip by friction plate and make it be connected, the pressure size added on friction plate is changed by adjusting bolt, limit is turned round the torque adjusting that free wheel device bears to being limited in a certain limit value scope, the torque spanner of available band digital display loads and readout value.
Wherein, certain gap is left between the cylindrical of described outer shroud and the endoporus of supporting sleeve.Described friction plate be asbestos-free friction material, there is good wear resistance, suitable and stable friction factor, described in this programme in adopt friction factor be 0.34.
In Fig. 2 .a, the composition such as inner ring (1), wedging part (voussoir, roller, spring etc.) (2), outer shroud (6), packing ring (3), axle bumper (4), Sealing (5) free wheel device unit.Require to manufacture and design according to the working condition used and become contact-type or non-contact wedge block and roller-type overrunning clutch, its structure and working principle is same as special over running clutch.But the outer shroud of free wheel device of the present invention be not by key or bolt and stand stiffness fixing on, outer shroud is then to the pressure of friction plate by adjustable friction mechanism for implementing, frictionally connects with support or other driving components through flange platen, realizes its function.Outer shroud is the common elements limitting the free wheel device turned round in free wheel device and adjustable limit to turn round friction mechanism.
In Fig. 2 .b, the composition such as outer shroud (6), friction plate (7), flange platen (8), seal ring (9), supporting sleeve (10), cylinder stage clip (11), adjusting bolt (12), end cap (13), latch (14) adjustable friction damping mechanism, flange platen (8) end face and supporting sleeve side end are connected by adjusting bolt, cylinder stage clip with the end face of outer shroud (6) by the frictional force of friction plate (7).Simultaneously, gap is left between the cylindrical of outer shroud and the respective interior bores of supporting sleeve, regulated the pressure being added in friction plate end face by adjusting bolt, the size of frictional force can be changed, thus limit can be turned round the moment of torsion adjustment that free wheel device bears and be limited in a certain limit value.
Meanwhile, in Fig. 2 .b, also indicate moment of torsion releasing mechanism, be made up of release bolt (17), supporting sleeve (10), pad (19), disc spring (20), end cap (13) and latch.When needs release function, first release bolt is loosened, pull up latch end cap is inserted on supporting sleeve, then clockwise by the center circle rotation a angle of end cap along bolt hole, at this moment discharging bolt enters in end cap large through-hole, tighten release bolt, the release function that limit turns round free wheel device has just been started working.
When being now non-contact wedge formula free wheel device by the limit clutch designs turned round in free wheel device, illustrate as follows its working principle: the inner ring that limit turns round free wheel device adopts key to connect with the high speed shaft extension of transmission system main frame, outer shroud leans on its friction mechanism to be connected with support or other driving components by the bolt hole of flange platen to be placed among transmission system.When host-initiated, drive inner ring and the rotation of voussoir assembling (wedging part) a piece, can centrifugal force be produced during rotation, have and force voussoir to assemble the trend disengaged with outer shroud.But when its rotate the centrifugal moment produced also be not enough to overcome Returnning spring be applied to the torque of voussoir time, at this moment voussoir and inner ring working surface contact with each other, and produce relative sliding friction with outer shroud, when inner ring rotating speed improves gradually, and when being equal to or greater than the minimum non-contact rotating speed of this clutch, at this moment produced centrifugal moment is equal to or greater than the torque of Returnning spring pre-add and the matter moment of voussoir, voussoir is forced to offset in supported hole and disengage with outer shroud like this, realize non-contact running, without friction, without wearing and tearing, reduce heating, improve working life.This time limit is turned round free wheel device and runs normally; but; when stop, have a power failure suddenly or mechanical failure etc. is caused serious overload or impacts generation; at this moment outer shroud skids and automatically throws off in transmission; meanwhile, in free wheel device, wedge system (wedging part) also loses wedging function, therefore; limit is turned round free wheel device and is in the effect losing transferring power and motion, plays the effect protecting whole transmission system driving component safety.When transmission system recover running gradually, moment of torsion be reduced to default a certain limit value time, limit is turned round free wheel device and is recovered normal function again.
Figure 3 shows that limit turns round free wheel device job applications signal on Dual Drive belt conveyor.Layout in Fig. 3 is motor (3-1,3-7), limit turns round free wheel device (3-2,3-5), speed reducer (3-3,3-6) and conveyor (3-4).General conveyor must arrange free wheel device, causes reversing runaway accident when stop and mechanical failure etc. heavy overload occurs or impact to prevent conveyor.Simultaneously again because of the impact that each free wheel device element manufactures, installation and operation state of wear is different, under non-return state, the check moment unbalance that each free wheel device bears, therefore all braking moments can take the lead in acting on one of them.Now when using the limit of band limit square function to turn round free wheel device, the free wheel device bearing braking moment as taken the lead in then can skid and automatically throw off, until the work of other free wheel devicees, at this moment brakes check moment by all free wheel device shareds.Effectively avoid Peak torque to the damage of system, also well protect the impact that free wheel device itself is not overloaded simultaneously.
Limit of the present invention is turned round free wheel device and is applicable to, in the mechanical transmission such as Belt Conveyors, metallurgical machinery, mining machinery, petrochemical machinery, printing machinery, lathe, speed reducer, gen-set and war products, have broad application prospects.
Turn round free wheel device to limit provided by the present invention to be above described in detail, apply concrete individual example herein to set forth principle of the present invention and mode of execution, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (2)
1. a limit turns round free wheel device, it is characterized in that, comprise inner ring (1), wedging part (2), packing ring (3), axle bumper (4), Sealing (5), outer shroud (6), friction plate (7), flange platen (8), supporting sleeve (10), seal ring (9), cylinder stage clip (11), adjusting bolt (12), end cap (13), protecting cover (16), release bolt (17), pad (19), disc spring (20), screw (15) and latch (14), wherein, described outer shroud (6) both ends of the surface and flange platen (8) and supporting sleeve (10) to be loaded by adjusting bolt and cylinder stage clip by friction plate and make it be connected, the internal diameter of outer shroud (6) and the external diameter of inner ring (1) form raceway and place wedging part (2), and the both ends of the surface of outer shroud (6) and flange platen (8), the interior edge face of supporting sleeve (10) and friction plate (7) are paired into friction pair, gap is left between the cylindrical of outer shroud (6) and supporting sleeve (10) respective interior bores, regulate cylinder stage clip (11) to add to friction plate end force by adjusting bolt (12), torque adjustment free wheel device can born is within the scope of a certain default limit value, moment of torsion release function mechanism forms by discharging bolt (17), supporting sleeve (10), disc spring (20), end cap (13) and latch (14), when needs release function, first release bolt (17) is loosened, pull up the latch (14) end cap (13) is inserted on supporting sleeve (10), then clockwise by the center circle rotation a angle of end cap (13) along bolt hole, at this moment discharging bolt enters in end cap large through-hole, tighten release bolt, the release function that limit turns round free wheel device has just been started working, described friction plate be asbestos-free friction material, friction factor is 0.34.
2. limit according to claim 1 turns round free wheel device, it is characterized in that, described wedging part is voussoir or roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210334712.8A CN102900787B (en) | 2012-09-11 | 2012-09-11 | Limit turns round free wheel device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210334712.8A CN102900787B (en) | 2012-09-11 | 2012-09-11 | Limit turns round free wheel device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102900787A CN102900787A (en) | 2013-01-30 |
| CN102900787B true CN102900787B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210334712.8A Expired - Fee Related CN102900787B (en) | 2012-09-11 | 2012-09-11 | Limit turns round free wheel device |
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| CN (1) | CN102900787B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265796A (en) * | 2014-10-06 | 2015-01-07 | 苏州蓝王机床工具科技有限公司 | Improved one-way overrunning clutch |
| CN104568427A (en) * | 2014-11-18 | 2015-04-29 | 中国航空动力机械研究所 | Conical gear shaft twisting-stopping simulation structure device and application |
| CN109854694A (en) * | 2019-01-29 | 2019-06-07 | 四川云智云造科技有限公司 | A kind of change torsion coupling device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4548316A (en) * | 1982-12-08 | 1985-10-22 | Ringspann Albrecht Maurer, K.G. | Run-back safety mechanism for conveyor apparatus |
| DE10313572A1 (en) * | 2003-03-26 | 2004-10-07 | Stieber Gmbh | Return motion stop especially for continuous mechanical handling equipment has friction ring constructed as fluid pressure operated piston to transmit torque between outer ring and housing |
| CN201851535U (en) * | 2010-11-19 | 2011-06-01 | 北京新兴超越离合器有限公司 | Non-contact wedge block overrunning clutch with coupler |
| CN102502183A (en) * | 2011-10-14 | 2012-06-20 | 力博重工科技股份有限公司 | Torque-limiting-type contact non-return device |
| CN102530513A (en) * | 2012-01-05 | 2012-07-04 | 力博重工科技股份有限公司 | Torque-limiting type low-speed brake |
| CN202867633U (en) * | 2012-09-11 | 2013-04-10 | 北京信息科技大学 | Twist limit overrun clutch |
-
2012
- 2012-09-11 CN CN201210334712.8A patent/CN102900787B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4548316A (en) * | 1982-12-08 | 1985-10-22 | Ringspann Albrecht Maurer, K.G. | Run-back safety mechanism for conveyor apparatus |
| DE10313572A1 (en) * | 2003-03-26 | 2004-10-07 | Stieber Gmbh | Return motion stop especially for continuous mechanical handling equipment has friction ring constructed as fluid pressure operated piston to transmit torque between outer ring and housing |
| CN201851535U (en) * | 2010-11-19 | 2011-06-01 | 北京新兴超越离合器有限公司 | Non-contact wedge block overrunning clutch with coupler |
| CN102502183A (en) * | 2011-10-14 | 2012-06-20 | 力博重工科技股份有限公司 | Torque-limiting-type contact non-return device |
| CN102530513A (en) * | 2012-01-05 | 2012-07-04 | 力博重工科技股份有限公司 | Torque-limiting type low-speed brake |
| CN202867633U (en) * | 2012-09-11 | 2013-04-10 | 北京信息科技大学 | Twist limit overrun clutch |
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| CN102900787A (en) | 2013-01-30 |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhu Chunmei Inventor after: Kong Wei Inventor after: Kong Qingtang Inventor after: Zhu Zicheng Inventor before: Zhu Chunmei Inventor before: Kong Wei Inventor before: Kong Qingtang Inventor before: Zhu Zicheng |
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Granted publication date: 20151209 |