CN202140526U - Torsion limiter - Google Patents
Torsion limiter Download PDFInfo
- Publication number
- CN202140526U CN202140526U CN201120226076U CN201120226076U CN202140526U CN 202140526 U CN202140526 U CN 202140526U CN 201120226076 U CN201120226076 U CN 201120226076U CN 201120226076 U CN201120226076 U CN 201120226076U CN 202140526 U CN202140526 U CN 202140526U
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- pull bar
- force limiting
- torque force
- articulated linkage
- limiting device
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Abstract
The utility model relates to the torsion limiter technology, in particular to a reduction box and a torsion limiter of equipment. The torsion limiter overcomes shortcomings of existing torsion limiters and resolves application problems when the torsion limiter is applied to sewage treatment industry equipment reduction boxes. The torsion limiter comprises a driving wheel and a reduction box arranged on a driving wheel shaft and is characterized in that one end of a hinge screw rod is fixed on a casing of the reduction box, the other end of the hinge screw rod is connected with one end of a hinge connecting rod, and the other end of the hinge connecting rod is in hinge connection with a pull rod. A position switch is arranged on the portion of the hinge connecting rod, the pull rod is sleeved with a plurality of butterfly-shaped springs, the pull rod and the butterfly-shaped springs are arranged in a sliding seat, one end of the pull rod facing the hinge connecting rod is provided with an adjusting nut, and the other end of the pull rod is provided with a locking nut. The torsion limiter is wide in torsion application range and especially suitable for undefined-load working conditions, and can perform pretightening at any time.
Description
Technical field
The utility model relates to the limiter technical field, relates in particular to the speed reducer that a kind of whole equipment of time protection that can prevent apparatus overload is not damaged and the torque force limiting device of equipment.
Background technique
Existing torque limiter mainly contains coaxial direct-connected steel ball type torque limiter, through the friction type torque force limiting device of chain or band transmission.The steel ball type torque limiter mainly is made up of main body, intermediate plate, pressing plate, adjusting nut, steel ball, axle sleeve, stop screw, sliding shaft sleeve etc.; During overload, steel ball leaves the pit on the axle sleeve, makes to produce between drive end parts and the driven end parts to skid, thereby has avoided the damage that causes because of overload.The friction type torque force limiting device mainly is made up of main body, friction plate, grommet, pressing plate, butterfly spring, guiding pressing plate, adjusting nut, adjusting bolt, stopping shim etc.; In the middle of two friction plates, sprocket wheel is housed, during overload, sprocket wheel and friction plate skid, thereby avoid causing device damage because of overload.These several kinds of torque protection devices are limited by rotating speed, and each model only is suitable for certain torque range.And existing its structural type of disclosed torque limit device is various; Effect is also inequality; Like patent publication No. is the torque limit device of a kind of worm reduction gear of CN 2319629Y; In the housing of worm reduction gear, be provided with a vertical axostylus axostyle, form in the free end of axostylus axostyle and protrude out from the threaded end housing outside, on axostylus axostyle, be arranged with in regular turn with the axostylus axostyle interlock support ring, friction plate, and the worm gear of worm meshing; And in this worm gear in addition sheathed in regular turn again friction plate on the axostylus axostyle of side, support ring, disk spring and a sleeve, be in close proximity to the sleeve outside and then be provided with the locknut that screws togather with the axostylus axostyle threaded end.The device of this band friction plate influences working life because of wearing and tearing.And for example patent publication No. is CN201794951U responsive type torque force limiting device, is made up of input shaft, output gear, gland nut and holddown spring, and the input shaft front end has conical surface; The conical surface front end has elongated input shaft neck, and there is thread in the input shaft neck outside, and there is the conical surface of depression at position, output gear axle center; Conical surface on this conical surface and the input shaft coincide, and the input shaft neck pierces output gear, and gland nut is screwed on the thread of input shaft neck; Between gland nut and output gear, holddown spring is arranged, tighten gland nut, under the elastic force effect of holddown spring; Input shaft makes output gear rotate under the drive of the frictional force of two conical surfaces; Outside output torque, the resistance that receives when output gear are during greater than circular cone frictional force, and output gear stops operating.
Summary of the invention
The purpose of the utility model is in order to solve the application problem of existing torque force limiting device some shortcomings and suitable sewage treatment industry equipment speed reducer; Provide a kind of rational in infrastructure; Be specially adapted to on the indefinite equipment of load whole torque force limiting device that equipment is not damaged of protection in the time of apparatus overload being prevented.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals: a kind of torque force limiting device; Comprise driving wheel, be contained in the speed reducer on the drive sprocket axle, an end of the screw rod that it is characterized in that being fixedly hinged on the housing of described speed reducer, the other end of hinged screw rod is connected with an end of articulated linkage; The other end and the pull bar of articulated linkage are hinged; The articulated linkage position is provided with position limit switch, some butterfly springs of suit on the pull bar, and pull bar and butterfly spring are arranged in the sliding seat; Pull bar is provided with adjusting nut towards an end of articulated linkage, and the other end of pull bar is equipped with locking nut.A briquetting through the front end in the adjusting nut roof pressure sliding seat carries out pretension to butterfly spring, adjusts the gap in the sliding seat behind the pressure ring compensation pretension by the locking nut of regulating the sliding seat afterbody.Speed reducer directly is contained on the drive sprocket axle, during speed reducer work, by equilibrium of forces and relative motion principle; Driving wheel rotates under the driving of speed reducer, and when overload, promptly work loads is greater than pretightening force; Speed reducer will rotate around drive sprocket axle; Butterfly spring, articulated linkage move simultaneously at this moment, and the collision pin that is contained on the hinge bar touches limit switch cut-out speed reducer power supply, and speed reducer quits work.After getting rid of the overload reason, butterfly spring automatically resets, and restarts power supply, and equipment gets into normal operation again.
As preferably, the two ends of described butterfly spring are respectively equipped with briquetting, on the briquetting of locking nut one end, are provided with pressure ring at pull bar, and pressure ring is arranged in the locking nut.Two briquettings from two ends the effective length to butterfly spring regulate; The endoporus of briquetting cooperates with a joint load segment crest clearance of pull bar; The endoporus Spielpassung of the boundary dimension of briquetting and sliding seat, pressure ring play the conductor effect of locking nut to the briquetting active force.
As preferably, described hinged screw rod is vertical with speed reducer output shaft, and hinged screw rod is fixed on the ear seat of reducer shell through locknut.Because the speed reducer of this device directly is contained on the drive sprocket axle, what speed reducer produced when overload is to rotate around drive sprocket axle, then hinged screw rod from vertical speed reducer central axis direction effectively this driving torque transmission.
As preferably, be provided with the collision pin in the described articulated linkage, the upper end of collision pin be provided with position limit switch on the jack that cooperates of roller.Collision pin is that speed reducer rotates the conductor that the distance that produces is controlled position limit switch when reaching a certain amount of.
As preferably, described position limit switch is fixed on the wheel carrier of driving wheel through the position limit switch fixed plate.During work, position limit switch is fixed, contacts position limit switch by the collision pin speed reducer power supply is controlled.To the principle of position limit switch, also can sell motionless on the wheel carrier that is fixed on driving wheel to collision, be contained in hinged connecting to position limit switch.
As preferably, an end of described pull bar is provided with hinging hole, and this hinging hole is connected with articulated linkage, and adjacent with hinging hole is spiro rod section, and this spiro rod section cooperates with adjusting nut, and the end face of a briquetting is pasted on the end top of adjusting nut.The appearance of adjusting nut is provided with increases the friction annular knurl.Hinged sense of rotation between articulated linkage and the pull bar is being in the vertical plane at center with the speed reducer output shaft, has guaranteed the moving direction of collision pin like this.The adjusting nut position has the enough spaces of tool to be used for the adjustment to adjusting nut.
As preferably, an end of described sliding seat is a cylindrical, tubular structure, and cylindrical cylindrical is provided with outside thread, the screw-internal thread fit of outside thread and locking nut, and externally threaded length is greater than the length of locking nut internal thread.The pedestal of sliding seat can be made as tubular structure, and the intermediate case position of body is connected on the fixed base, and the externally threaded length of body enough satisfies the adjusting length of locking nut.
As preferably, the external diameter of described pressure ring and sliding seat cylindrical tubular endoporus Spielpassung, the endoporus of pressure ring is greater than the external diameter of pull bar.Pressure ring slides in sliding seat together with butterfly spring, and pressure ring is that the center is flexible with the pull bar together with butterfly spring simultaneously.
As preferably, described sliding seat is fixed on the wheel carrier of driving wheel through fixed base.Sliding seat also can be processed one with fixed base in practical application.
Effective effect of the utility model is: rotating speed does not receive torque force limiting device restriction itself; Torsion is applied widely; Particularly to the indefinite operating mode of load; Can show pretension, get to proper working load after, the protection when behind suitable adjustment adjusting nut and locking nut, loading as requested as overload.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is a kind of plan structure schematic representation of the utility model Fig. 1.
Fig. 3 is the local structure for amplifying schematic representation of the utility model Fig. 2.
Among the figure: 1. locknut, 2. hinged screw rod, 3. collision pin, 4. position limit switch; 5. articulated linkage, 6. position limit switch fixed plate, 7. pivot pin, 8. cotter pin; 9. adjusting nut, 10. pull bar, 11. butterfly springs, 12. briquettings; 13. pressure ring, 14. locking nuts, 15. sliding seats, 16. fixed bases.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technological scheme of the utility model.
Referring to Fig. 1, Fig. 2; A kind of torque force limiting device of present embodiment is provided with driving wheel and wheel carrier thereof, speed reducer is housed on the drive sprocket axle; Establish an ear seat on the housing of speed reducer; Fix an end of hinged screw rod 2 and ear seat with locknut 1, the other end of hinged screw rod 2 is connected with pivot pin 7 with an end of articulated linkage 5, and pivot pin 7 one ends are equipped with cotter pin 8.The other end of articulated linkage 5 and pull bar 10 are hinged, and this hinge point is provided with pivot pin and cotter pin equally.In articulated linkage 5, establish a collision pin 3, at collision pin 3 operation positions position limit switch 4 is housed, position limit switch 4 is fixed on the wheel carrier of driving wheel through position limit switch fixed plate 6.Like this, hinged screw rod 2, articulated linkage 5, pull bar 10 be at same linear position, and vertical with the speed reducer central axis.
As shown in Figure 3, ten butterfly springs 11 of suit on the pull bar 10, briquetting 12 is equipped with at the two ends of butterfly spring 11 respectively; Tail end briquetting 12 ends of pull bar 10 are provided with pressure ring 13, and pull bar 10, briquetting 12, pressure ring 13 and butterfly spring 11 all are arranged in the sliding seat 15, and pull bar 10 is that front end is provided with thread section towards an end of articulated linkage 5; Adjusting nut 9 is housed on the thread section; The other end of pull bar 10 is that tail end is provided with locking nut 14, and locking nut 14 cooperates with the sliding seat 15 1 end outside threads of tubular form, like this; The one end top of pressure ring 13 touch the end face of briquetting 12, and the other end of pressure ring 13 withstands in the endoporus of locking nut 14.
When speed reducer was worked, driving wheel rotated under the driving of speed reducer, when work loads promptly transships greater than pretightening force; Speed reducer rotates around drive sprocket axle, and at this moment butterfly spring 11, articulated linkage 5 move simultaneously, and the collision pin 3 that is contained on the articulated linkage 5 touches limit switch 4 and cuts off the speed reducer power supply; Speed reducer quits work, and after getting rid of the overload reason, butterfly spring 11 automatically resets; Restart power supply, equipment normally moves.
The foregoing description is the explanation to the utility model, is not the qualification to the utility model, any protection domain that structure after the simple transformation of the utility model, technology is all belonged to the utility model.
Claims (9)
1. torque force limiting device; Comprise driving wheel, be contained in the speed reducer on the drive sprocket axle, an end of the screw rod (2) that it is characterized in that being fixedly hinged on the housing of described speed reducer, the other end of hinged screw rod (2) is connected with an end of articulated linkage (5); The other end of articulated linkage (5) and pull bar (10) are hinged; Articulated linkage (5) position is provided with position limit switch (4), and pull bar (10) is gone up some butterfly springs of suit (11), and pull bar (10) and butterfly spring (11) are arranged in the sliding seat (15); Pull bar (10) is provided with adjusting nut (9) towards an end of articulated linkage (5), and the other end of pull bar (10) is equipped with locking nut (14).
2. torque force limiting device according to claim 1; The two ends that it is characterized in that described butterfly spring (11) are respectively equipped with briquetting (12); On the briquetting (12) of locking nut (14) one ends, be provided with pressure ring (13) at pull bar (10), pressure ring (13) is arranged in the locking nut (14).
3. torque force limiting device according to claim 1 and 2 is characterized in that described hinged screw rod (2) is vertical with speed reducer output shaft, and hinged screw rod (2) is fixed on the ear seat of reducer shell through locknut (1).
4. torque force limiting device according to claim 1 is characterized in that being provided with in the described articulated linkage (5) collision pin (3), the upper end of collision pin (3) be provided with position limit switch (4) on the jack that cooperates of roller.
5. according to claim 1 or 4 described torque force limiting devices, it is characterized in that described position limit switch (4) is fixed on the wheel carrier of driving wheel through position limit switch fixed plate (6).
6. torque force limiting device according to claim 1 and 2; An end that it is characterized in that described pull bar (10) is provided with hinging hole; This hinging hole is connected with articulated linkage (5); Adjacent with hinging hole is spiro rod section, and this spiro rod section cooperates with adjusting nut (9), and the end face of a briquetting (12) is pasted on the end top of adjusting nut (9).
7. torque force limiting device according to claim 1; An end that it is characterized in that described sliding seat (15) is a cylindrical, tubular structure; Cylindrical cylindrical is provided with outside thread; The screw-internal thread fit of outside thread and locking nut (14), externally threaded length is greater than the length of locking nut (14) internal thread.
8. according to claim 1 or 7 described torque force limiting devices, it is characterized in that the external diameter and sliding seat (15) the cylindrical tubular endoporus Spielpassung of described pressure ring (13), the endoporus of pressure ring (13) is greater than the external diameter of pull bar (10).
9. according to claim 1 or 7 described torque force limiting devices, it is characterized in that described sliding seat (15) is fixed on the wheel carrier of driving wheel through fixed base (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120226076U CN202140526U (en) | 2011-06-30 | 2011-06-30 | Torsion limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120226076U CN202140526U (en) | 2011-06-30 | 2011-06-30 | Torsion limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140526U true CN202140526U (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120226076U Expired - Fee Related CN202140526U (en) | 2011-06-30 | 2011-06-30 | Torsion limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140526U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343853A (en) * | 2014-11-04 | 2015-02-11 | 广州广电运通金融电子股份有限公司 | Torsion limiter |
| CN105690561A (en) * | 2016-04-06 | 2016-06-22 | 福建南方路面机械有限公司 | Reducer counter-torque fixing device and wet concrete recycling machine provided with same |
| CN109436707A (en) * | 2018-12-03 | 2019-03-08 | 佛山市丁丁自动化科技有限公司 | A kind of centering positioning truck of adaptive material specification |
-
2011
- 2011-06-30 CN CN201120226076U patent/CN202140526U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343853A (en) * | 2014-11-04 | 2015-02-11 | 广州广电运通金融电子股份有限公司 | Torsion limiter |
| CN104343853B (en) * | 2014-11-04 | 2017-05-10 | 广州广电运通金融电子股份有限公司 | Torsion limiter |
| CN105690561A (en) * | 2016-04-06 | 2016-06-22 | 福建南方路面机械有限公司 | Reducer counter-torque fixing device and wet concrete recycling machine provided with same |
| CN109436707A (en) * | 2018-12-03 | 2019-03-08 | 佛山市丁丁自动化科技有限公司 | A kind of centering positioning truck of adaptive material specification |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20150630 |
|
| EXPY | Termination of patent right or utility model |