CN201050558Y - Braking and load-limiting coupler - Google Patents
Braking and load-limiting coupler Download PDFInfo
- Publication number
- CN201050558Y CN201050558Y CNU2006201634594U CN200620163459U CN201050558Y CN 201050558 Y CN201050558 Y CN 201050558Y CN U2006201634594 U CNU2006201634594 U CN U2006201634594U CN 200620163459 U CN200620163459 U CN 200620163459U CN 201050558 Y CN201050558 Y CN 201050558Y
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- China
- Prior art keywords
- coupling
- friction plate
- driven
- braking
- shaft joint
- Prior art date
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- Expired - Fee Related
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- 230000008878 coupling Effects 0.000 claims description 75
- 238000010168 coupling process Methods 0.000 claims description 75
- 238000005859 coupling reaction Methods 0.000 claims description 75
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 abstract description 9
- 238000007906 compression Methods 0.000 abstract description 9
- 230000009347 mechanical transmission Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Braking Arrangements (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The utility model relates to a brake load limiting shaft joint which consists of a large bracket, an adjusting nut of a compression spring, a compression spring, a compression spring holder, a plane bearing, a drive shaft joint, a drive friction plate bracket, a drive friction plate, a detent plate stop, a driven friction plate, a driven friction plate bracket, and a driven shaft joint. The utility model is characterized in that the adjusting nut of the compression spring, the compression spring, the compression spring holder, the plane bearing, the drive shaft joint, the drive friction plate bracket, the drive friction plate, the detent plate stop, the driven friction plate, the driven friction plate bracket and the driven shaft joint are arranged and installed in sequence along the axial lead direction in the larger bracket. When in overloading, the drive shaft joint and the tooth shape of the driven shaft joint are completely separated, thereby realizing the function of an overload protection working machine. When losing power, energy stored by a spring when being compressed sets free at once, thereby driving the drive friction plate and the driven friction plate to respectively generate friction force with the detent plate stop, realizing the aim of braking, and widely being applied to the mechanical transmission.
Description
Technical field
The utility model relates to a kind of braking limit for tonnage coupling.
Background technique
Existing coupling is to connect that diaxon or axle and revolving meber together turn round and a kind of device of not throwing off in transmitting movement and dynamic process; come branch that two big classes are arranged from aspect of performance: rigid coupling and flexible coupling; though two class coupling all can reach the effect of shaft coupling transmission; but when machine can not protected machine because of overload under the situation of overload; thereby easily cause machine breakdown; can not brake because of stopping of machine at once yet; thereby easily cause the problem of quality and secure context, the working environment that therefore existing coupling can not directly be suitable for overload protection and need the machine power-off brake to finish simultaneously.
Summary of the invention
The purpose of this utility model: design a kind of existing shaft coupling function, the coupling of braking function and overload protection function is arranged again, remedy the not enough aspect of existing coupling.
The technological scheme that its technical problem that solves the utility model adopts is:
Big support is fixed on the frame of working machine, in big support, pressure spring adjusting nut, pressure spring, pressure spring seat, plane bearing, initiatively coupling, active friction plate support, active friction plate, braking plate, arrange installation from movable friction plate, driven friction disc support and driven coupling in turn along direction of axis line.The supplementary structure of braking plate (with so that braking plate produce axial displacement and reset) contain spacing regulating block, braking plate, the belleville spring that resets, belleville spring seat and arrange setting in turn along direction of axis line in the periphery of support greatly, wherein initiatively coupling and driven coupling tooth surface shape are trapezoidal, initiatively the coupling endoporus is a splined hole, can move axially with splined shaft along motor.
Driven coupling is the coupling that is fixed on the driven shaft, initiatively coupling is installed on the driving shaft by spline and (refers generally to motor shaft), braking plate is stuck on the big support, a certain amount of displacement is arranged vertically, can not produce angular displacement, be installed between the friction plate and the friction plate on the driven coupling on the active coupling.
Initiatively coupling and driven coupling are realized the transmission of moment of torsion owing to trapezoidal flank engagement adds the axial pressure effect of pressure spring, reach the function of shaft coupling.During overload; in order to reach the balance with pressure spring pressure; initiatively coupling has only vertically and further compresses pressure spring to active coupling direction; throw off fully up to active coupling and driven device profile of tooth; causing initiatively, coupling separates the function of overload protection working machine with the trapezoidal flank of tooth of driven coupling.When the active coupling runs out of steam, energy stored discharged immediately when spring was compressed, and promoted active friction plate and produced friction with braking plate respectively from movable friction plate, formed braking moment, realized the purpose of braking.
The beneficial effects of the utility model are, the function that possesses coupling has the function of braking and limit for tonnage again simultaneously, accomplishes to shut down and brakes immediately and the overload protection working machine.
Below in conjunction with Figure of description the utility model is described in detail.
Description of drawings
Accompanying drawing 1: braking limit for tonnage coupling schematic representation
Accompanying drawing 2: braking limit for tonnage coupler structure figure
In the accompanying drawing: 1-pressure spring adjusting nut, 2-motor shaft spline housing, 3-is coupling initiatively, the 4-pressure spring, the big support of 5-, 6-spring seat, 7-plane bearing, 8-is the clutch slips cover initiatively, 9-active friction plate support, 10-active friction plate, the spacing regulating block of 11-, the 12-belleville spring that resets, 13-belleville spring seat, 14-is braking plate fixedly, and 15-is from movable friction plate, the driven coupling of 16-, the 17-fastening screw trip bolt, the driven friction disc support of 18-, the driven clutch slips cover of 19-, the 20-sunk screw, the 21-countersunk screw.
Embodiment
In the specification shown in the accompanying drawing: pressure spring adjusting nut 1 and belleville spring seat 13 are fixed on the big support 5 by screw thread, braking plate 14 is positioned on the big support by belleville spring 12 and belleville spring seat 13, can produce a certain amount of axial displacement, can produce braking moment with active friction plate 10 with from movable friction plate 15 frictions, driven coupling sliding sleeve 19 adopts interference fit to be connected with belleville spring seat 13, spring seat 6 cylindricals are positioned on big support 5 endoporus, can move axially, pressure spring 4 two ends are positioned on pressure spring adjusting nut 1 and the spring seat 6, axial direction spring seat 6 moves axially with the compression of pressure spring 4, spacing regulating block 11 is used to regulate the axial dimension of braking plate 14, make braking plate 14 be in the optimum position, in this coupling normal operation process, pressure spring adjusting nut 1 pressure spring 4 and big support 5 spring seats, 6 spacing regulating block 11 braking plate 14 belleville springs, 12 belleville spring seats 13 and driven clutch slips cover 19 do not participate in running.Motor shaft is connected with power source by endoporus with spline housing 2, cylindrical is furnished with spline, with the 3 accurate sliding connections of active coupling, pressure spring 4 in order to balance initiatively the axial force that produces of coupling 3 and when transshipping with the separating of driven coupling 16, the configuration of plane bearing 7 is in order to reduce the part in the running, guarantee dynamic balancing, initiatively clutch slips cover 8 links together with 3 interference of active coupling, be designed to accurate being slidingly matched with big support 5, initiatively the setting of clutch slips cover 8 is passive constraints, active friction plate support 9 usefulness countersunk screws 21 are connected as one securely with active coupling 3, active friction plate 10 usefulness sunk screws 20 firmly are linked together with active friction plate support 9, driven coupling 16 is connected with key by endoporus with working machine, driven friction disc support 18 usefulness screw threads and fastening screw trip bolt 17 closely are linked together with driven coupling 16, can not become flexible, be linked together with driven friction disc support 18 from movable friction plate 15 usefulness sunk screws 20 close and firm ground.In the coupling operation process, motor with an axle spline housing 2, initiatively coupling 3, plane bearing 7, initiatively clutch slips cover 8, active friction plate support 9, active friction plate 10, driven coupling 16, from movable friction plate fixed block 18, all can be from movable friction plate 15 and fastening screw trip bolt 17 together along with motion.
The working procedure of this braking limit for tonnage coupling: power source is imported with spline housing 2 from motor shaft, pass to initiatively coupling 3, the engagement of the trapezoidal flank of tooth by active coupling 3 and the trapezoidal flank of tooth of driven coupling 16 adds that the pressure of pressure spring 4 realizes the shaft coupling transmission, because the resistance of working machine and the ramp structure of the trapezoidal flank of tooth, on active coupling 3 shaft axiss, produce an end thrust of pointing to motor drive direction, make coupling 3 initiatively produce axial displacements compression pressure springs 4 and reach balance with spring thrust, make from movable friction plate 15 and active friction plate 10 under the effect of belleville spring 12 and spacing regulating block 11, separate with braking plate 14, brake off, the effect of performance coupling is carried out transmission.When working machine transships; initiatively the axial force of coupling upper edge axial direction also increases thereupon; initiatively coupling must produce displacement along axial direction; further compression pressure spring 4 in order to reach the balance with pressure spring 4 thrusts, is thrown off fully up to the trapezoidal flank of tooth of active coupling 3 and the trapezoidal flank of tooth of driven coupling 16; this moment, coupling was in the state that skids; machine has been protected in no longer transmission, has realized the limit for tonnage protection.Motor is out of service; torque disappears; the pressure spring pressure that is subjected on the active coupling is axial also resets into the state before shutting down thereupon; this moment, the energy of pressure spring 4 savings discharged immediately; promote the active coupling and move, make active friction plate 10 and combine the generation friction from movable friction plate 15 with braking plate to driven coupling 16 directions; form braking moment, realize braking.Braking limit for tonnage coupling is reasonable in design, and compact structure is sensitive reliable, can be widely used in the multiclass mechanical transmission coupling.
Claims (2)
1. a braking limit for tonnage coupling is made up of braking limit for tonnage and shaft coupling two systems, it is characterized in that: braking plate (14) is positioned in the big support (5), can produce a certain amount of axial displacement, because the press-brake sheet (14) of pressure spring (4) can produce braking moment with active friction plate (10) with from movable friction plate (15) friction, active friction plate (10) is fixed on the active coupling (3) with a plurality of sunk screws (20) and a countersunk screw (21) by active friction plate support (9), from movable friction plate (15) by driven friction disc support (18) with screw thread and a plurality of sunk screw (20) be fixed on the driven coupling (16), motor shaft is used spline housing (2) and is accurate sliding connection between the coupling (3) initiatively, during overload, initiatively coupling compresses pressure spring (4) along motor shaft with spline housing (2) direction; During the shaft coupling transmission, initiatively coupling (3) has been removed the pressure that pressure spring (4) imposes on braking plate (14).
2. braking limit for tonnage coupling according to claim 1 is characterized in that, the described active coupling (3) and driven coupling (16) flank of tooth are the trapezoidal flank of tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201634594U CN201050558Y (en) | 2006-12-05 | 2006-12-05 | Braking and load-limiting coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201634594U CN201050558Y (en) | 2006-12-05 | 2006-12-05 | Braking and load-limiting coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050558Y true CN201050558Y (en) | 2008-04-23 |
Family
ID=39337045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201634594U Expired - Fee Related CN201050558Y (en) | 2006-12-05 | 2006-12-05 | Braking and load-limiting coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201050558Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813146B (en) * | 2009-02-20 | 2012-02-15 | 湖北省咸宁三合机电制业有限责任公司 | Coupling braking load limiter |
| CN102518690A (en) * | 2011-12-16 | 2012-06-27 | 三多乐精密注塑(深圳)有限公司 | Torque limiter |
| CN103075437A (en) * | 2013-01-22 | 2013-05-01 | 苏州市欧博锐自动化科技有限公司 | Shaft coupler type torsion limiter |
| CN103307155A (en) * | 2012-03-15 | 2013-09-18 | 湖北省咸宁三合机电制业有限责任公司 | Stressing-type brake load-limiting coupler |
| CN103307156A (en) * | 2012-03-15 | 2013-09-18 | 湖北省咸宁三合机电制业有限责任公司 | Double-toothed-surface forced braking and load-limitation coupling |
| CN105299110A (en) * | 2014-06-25 | 2016-02-03 | 湖北省咸宁三合机电制业有限责任公司 | Power-on de-braking load-limiting coupler |
| CN107489381A (en) * | 2017-09-28 | 2017-12-19 | 山西风雷钻具有限公司 | Antioverloading helicoid hydraulic motor |
| CN107707072A (en) * | 2017-09-05 | 2018-02-16 | 宁波安信数控技术有限公司 | A kind of transmission shaft structure of permanent-magnet servo motor |
-
2006
- 2006-12-05 CN CNU2006201634594U patent/CN201050558Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813146B (en) * | 2009-02-20 | 2012-02-15 | 湖北省咸宁三合机电制业有限责任公司 | Coupling braking load limiter |
| CN102518690A (en) * | 2011-12-16 | 2012-06-27 | 三多乐精密注塑(深圳)有限公司 | Torque limiter |
| CN103307155A (en) * | 2012-03-15 | 2013-09-18 | 湖北省咸宁三合机电制业有限责任公司 | Stressing-type brake load-limiting coupler |
| CN103307156A (en) * | 2012-03-15 | 2013-09-18 | 湖北省咸宁三合机电制业有限责任公司 | Double-toothed-surface forced braking and load-limitation coupling |
| CN103307155B (en) * | 2012-03-15 | 2015-10-21 | 湖北省咸宁三合机电制业有限责任公司 | Thrust type braking load-limiting coupler |
| CN103307156B (en) * | 2012-03-15 | 2015-11-25 | 湖北省咸宁三合机电制业有限责任公司 | Bidentate face thrust type braking load-limiting coupler |
| CN103075437A (en) * | 2013-01-22 | 2013-05-01 | 苏州市欧博锐自动化科技有限公司 | Shaft coupler type torsion limiter |
| CN105299110A (en) * | 2014-06-25 | 2016-02-03 | 湖北省咸宁三合机电制业有限责任公司 | Power-on de-braking load-limiting coupler |
| CN107707072A (en) * | 2017-09-05 | 2018-02-16 | 宁波安信数控技术有限公司 | A kind of transmission shaft structure of permanent-magnet servo motor |
| CN107707072B (en) * | 2017-09-05 | 2023-11-10 | 宁波安信数控技术有限公司 | Transmission shaft structure of permanent magnet servo motor |
| CN107489381A (en) * | 2017-09-28 | 2017-12-19 | 山西风雷钻具有限公司 | Antioverloading helicoid hydraulic motor |
| CN107489381B (en) * | 2017-09-28 | 2023-06-06 | 山西风雷钻具有限公司 | Overload-proof screw drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20121205 |