CN104455061A - Limiting torque coupling - Google Patents
Limiting torque coupling Download PDFInfo
- Publication number
- CN104455061A CN104455061A CN201410740209.1A CN201410740209A CN104455061A CN 104455061 A CN104455061 A CN 104455061A CN 201410740209 A CN201410740209 A CN 201410740209A CN 104455061 A CN104455061 A CN 104455061A
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- China
- Prior art keywords
- connecting body
- lower connecting
- axle sleeve
- upper connecting
- compress spring
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- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The invention discloses a limiting torque coupling which comprises an upper connecting body, a lower connecting body and a compression spring, wherein the lower connecting body comprises a shaft part, a shaft sleeve connecting part, a compression spring mounting part, an outer thread part and a connecting part which are arranged in sequence from the front end to the rear end; an adjusting nut and a locking nut are fixed to the outer thread part; the compression spring sleeves the compression spring mounting part; a shaft sleeve is circumferentially fixed to the shaft sleeve connecting part; the shaft part at the front end of the lower connecting body enters a bearing mounting groove of the upper connecting body and is connected with the upper connecting body through a bearing; an end cover for axially limiting the bearing is fixed at the front end part of the lower connecting body; mutually meshed teeth surround the end surfaces of the rear end of the upper connecting body and the front end of the shaft sleeve. The limiting torque coupling is very convenient in torque adjustment, safe, reliable, strong in adaptability, small in volume and light in weight; the maximum limiting torque is set by the positions of the adjusting nut and the locking nut.
Description
Technical field
The present invention relates to the hitch bar of a kind of rotatable parts for electic protection restriction moment of rotation, is a kind of limiting torque coupling specifically.
Background technique
Along with the improving constantly of automatization level of equipment, electrical control, the application of drive technology is more and more extensive, also more and more higher to the requirement of its reliability, especially in electric power system, the reliability requirement of power supply unit is higher, for ensureing the safe and stable operation of equipment, circuit breaker, every single stepping of the equipment such as isolating switch all should safety, reliably, but most of power equipment is all applied in outdoor, after long-time running, easily there is corrosion in major part rotatable parts, the phenomenons such as bite, especially isolating switch, closing, during sub-switching operation, often because of rotatable parts jam, the related components distortion that motor still continues to run and causes, fracture, or even porcelain insulator breaking, bus such as to collapse at the serious accident.In other industry; the application of electrical control, drive technology is equally also more and more extensive; also more because rotating the device damage accident that jam or motor rotation blockage cause in productive life; and existing common method; as sealed in thermorelay in electric motor loop; overcurrent relay etc.; all stall occurs at motor; rotatingshaft has born larger moment of rotation; rotatingshaft has born after larger moment of rotation is destroyed and has just started corresponding protective measure in other words, and such protective measure sensitivity is low, reaction velocity slow and reliability is not high.
Summary of the invention
For solving the problems such as the slow and reliability of low, the reaction velocity of existing electic protection measure sensitivity in electrical control, drive technology application is not high; the invention provides a kind of limiting torque coupling; can not only solve the problem; can also use side by side with existing electic protection measure, significantly can improve the safety and reliability of equipment.
For achieving the above object, present invention employs following technological scheme: comprise upper and lower connecting body and Compress Spring, the joint that lower connecting body is disposed with the axle portion be connected with upper connecting body, the axle sleeve joint being used for circumferential fixed axle sleeve, Compress Spring assembly department, external thread part to the back-end by front end and is connected with transmission or rotatable parts; Be used for regulating the adjusting nut of Compress Spring decrement and locking nut to be threaded connection and be fixed on external thread part, Compress Spring is sleeved on Compress Spring assembly department, is used for the axle sleeve of transmitting torque to be inserted in by lower connecting body front end and circumference is fixed on axle sleeve joint; The axis hole coordinated with the axle portion of lower connecting body front end is had in the middle of upper connecting body rear end, upper connecting body front end has the bearing mounting groove leading to rear end axis hole, axle portion, lower connecting body front end to be entered in the bearing mounting groove of connecting body and is connected with upper connecting body by bearing, and the end winding support of lower connecting body front end has the end cap to bearing axial limiting; Upper connecting body rear end and axle sleeve front end are provided with the intermeshing tooth arranged around end face.By adjusting lock nut and adjusting nut, the position on lower connecting body realizes the maximum moment value of axle sleeve transmission.When moment exceedes setting value, slide between upper connecting body and axle sleeve, promote axle sleeve and move backward, the rotatable parts being fixed on upper and lower connecting body end are departed from, always reaches protective action.
For increasing the area of contact of axle sleeve, upper connecting body contact end face, improve transmission performance, axle sleeve external diameter is identical with upper connecting body external diameter, and axle sleeve front end is provided with the axis hole coordinated with the axle portion of lower connecting body front end.
Usually have the electric protective device of a lot of occasion to be exposed to outdoor, for preventing rainwater corrosion, upper connecting body has in the bottom of bearing mounting groove and leads to outside weep hole.
In order to prevent the rainwater when outdoor utility from entering, upper connecting body front end is provided with the cover plate for stuffing box bearing mounting groove.
Steadily compress for convenience of spring, the spring seat be sleeved on lower connecting body is equipped with at Compress Spring two ends.
Beneficial effect of the present invention is:
(1) easy to use.The end of upper and lower connecting body is connected with rotatable parts with the transmission part of electric protective device respectively by U-shaped ring or anchor ear.The position setting on lower connecting body by adjustment adjusting nut and locking nut of maximum restraining moment, torque adjusting is very convenient.
(2) safe and reliable.When bite or stuck phenomenon appear in equipment, energy restriction maximum rotation moment on the device, improves the security of operation of equipment.When acting on the moment of rotation on equipment and being greater than setting value, will make to produce between upper and lower connecting body slide and unload except larger dangerous opplied moment, ensure the security of operation of equipment.
(3) applicability is strong.The rotatingshaft that this device is applicable to any rotatable parts connects, and maximum restraining moment arbitrarily adjusts by adjusting nut and locking nut.
(4) volume is little, lightweight, is particularly suitable for the rotatable parts anti-bite or stuck of the existing electic protection measure in electrical control, drive technology application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is along A-A line sectional view in Fig. 1.
In figure, the implication of label symbol is as follows:
1-lower connecting body 11-joint, 12-external thread part, 13-Compress Spring assembly department 14-axle sleeve joint 15-axle portion
2-upper connecting body 21-tooth 22-weep hole 23-bearing mounting groove 24-axis hole shoulder
3-axle sleeve, 31-tooth 32-polygonal cavity
4-Compress Spring 41,42-spring seat
5-locking nut 6-adjusting nut 7-bearing
8-end cap 81-screw 82-annular protrusion 9-cover plate
Embodiment
Below in conjunction with accompanying drawing, the technological scheme in the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, 2, lower connecting body 1 is disposed with by front end the axle portion 15 be connected with upper connecting body 2 to the back-end, the cross section being used for being connected with axle sleeve 3 is polygonal axle sleeve joint 14, Compress Spring assembly department 13, the external thread part 12 be connected with adjusting nut 6 and locking nut 5 and the joint 11 that is connected with transmission or rotatable parts.Be used for transmitting torque axle sleeve 3 in the middle of have the polygonal cavity 32 coordinated with lower connecting body axle sleeve joint 14 cross section, axle sleeve 3 is inserted in by the axle portion 15 of lower connecting body front end, and by the polygonal outer wall cooperation of axle sleeve joint 14, circumference is fixed on lower connecting body 1, and axle sleeve 3 can be moved as axial reciprocating relative to lower connecting body 1.Compress Spring 4 is sleeved on the Compress Spring assembly department 13 of axle sleeve 3 rear end, and Compress Spring 4 two ends are provided with the spring seat 41,42 be sleeved on lower connecting body.Be used for regulating the adjusting nut 6 of Compress Spring decrement and locking nut 5 to be threaded connection the external thread part 12 being fixed on Compress Spring rear end.
The axis hole that can coordinate for the axle portion 15 of lower connecting body front end is had in the middle of upper connecting body 2 rear end, upper connecting body 2 front end has the bearing mounting groove 23 leading to rear end axis hole, axle portion, lower connecting body front end 15 to be entered in the bearing mounting groove 23 of connecting body and is connected with upper connecting body 2 by bearing 7, the end winding support of lower connecting body front end has the end cap 8 to bearing 7 axial limiting, end cap 8 is fixed on the end of lower connecting body 1 by screw 81, end cap 8 has the annular protrusion 82 being protruding to bearing face, by annular protrusion 82, bearing 7 is pressed on the axis hole shoulder 24 of upper connecting body rear end.
Upper connecting body 2 rear end and axle sleeve 3 front end are provided with the intermeshing tooth 21,31 arranged around end face.
The decrement of Compress Spring 4 can be regulated, to reach the maximum moment value regulating and transmitted by axle sleeve 3 by rotational lock nut 5 and adjusting nut 6.The transmission part of electric protective equipment and rotatable parts are connected to the two ends of upper and lower connecting body 2,1 respectively by U-shaped ring or anchor ear.When moment exceedes setting value; upper connecting body 2 produces with the tooth 21,31 that the contact end face of axle sleeve 3 engages and slides; the elastic force that promotion axle sleeve 3 overcomes Compress Spring 4 moves backward, the rotatable parts being fixed on upper and lower connecting body end is departed from, always reaches protective action.
Consider that axle sleeve 3, upper connecting body 2 are by contact end face engaging tooth transmitting torque, preferred version is that axle sleeve 3 external diameter is identical with upper connecting body 2 external diameter, and there is the axis hole coordinated with the axle portion 15 of lower connecting body 2 front end axle sleeve 3 front end.This design makes, into axle sleeve is consistent with the contact end face of upper connecting body, can improve transmission performance.
The rear connecting portion diameter of lower connecting body also can be consistent with axle sleeve, upper connecting body external diameter.During assembling, locking nut 5, adjusting nut 6, Compress Spring 4 and spring seat thereof 41 and 42, axle sleeve 3 etc. are front loaded by lower connecting body 1 successively.It is pointed out that the rear connecting portion diameter of lower connecting body also can be less than external thread part, make Compress Spring and spring seat, adjusting nut, locking nut can by the installation of lower connecting body rear end.
Considering need in outdoor application, and for preventing rainwater corrosion, upper connecting body 2 has in the bottom of bearing mounting groove 23 and leads to outside weep hole 22, and upper connecting body 2 front end is provided with the cover plate 9 for stuffing box bearing mounting groove 23.
Claims (5)
1. limiting torque coupling, comprise upper and lower connecting body (2,1) and Compress Spring (4), it is characterized in that: the joint (11) that lower connecting body (1) is disposed with the axle portion (15) be connected with upper connecting body (2), the axle sleeve joint (14) being used for circumferential fixed axle sleeve (3), Compress Spring assembly department (13), external thread part (12) to the back-end by front end and is connected with transmission or rotatable parts; Be used for regulating the adjusting nut (6) of Compress Spring (4) decrement and locking nut (5) to be threaded connection and be fixed on external thread part (12), Compress Spring (4) is sleeved on Compress Spring assembly department (13), be used for transmitting torque axle sleeve (3) by lower connecting body (1) front end be inserted in and circumference be fixed on axle sleeve joint (14); The axis hole coordinated with the axle portion (15) of lower connecting body front end is had in the middle of upper connecting body (2) rear end, upper connecting body (2) front end has the bearing mounting groove (23) leading to rear end axis hole, axle portion, lower connecting body front end (15) is entered in the bearing mounting groove (23) of connecting body and is also connected with upper connecting body (2) by bearing (7), and the end winding support of lower connecting body (1) front end has the end cap (8) to bearing (7) axial limiting; Upper connecting body (2) rear end and axle sleeve (3) front end are provided with the intermeshing tooth (21,31) arranged around end face.
2. limiting torque coupling according to claim 1, it is characterized in that: axle sleeve (3) external diameter is identical with upper connecting body (2) external diameter, axle sleeve (3) front end is provided with the axis hole coordinated with the axle portion (15) of lower connecting body front end.
3. limiting torque coupling according to claim 1, is characterized in that: upper connecting body (2) has in the bottom of bearing mounting groove (23) and leads to outside weep hole (22).
4. limiting torque coupling according to claim 1, is characterized in that: upper connecting body (2) front end is provided with the cover plate (9) for stuffing box bearing mounting groove (23).
5. the limiting torque coupling according to claim 1 or 2 or 3 or 4, is characterized in that: the spring seat (41,42) be sleeved on lower connecting body (1) is equipped with at Compress Spring (4) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410740209.1A CN104455061A (en) | 2014-12-05 | 2014-12-05 | Limiting torque coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410740209.1A CN104455061A (en) | 2014-12-05 | 2014-12-05 | Limiting torque coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104455061A true CN104455061A (en) | 2015-03-25 |
Family
ID=52901622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410740209.1A Pending CN104455061A (en) | 2014-12-05 | 2014-12-05 | Limiting torque coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455061A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5314381A (en) * | 1991-09-27 | 1994-05-24 | Ringspann Gmbh | Detent arrangement for the coupling pin of an overload element, particularly in an overload clutch |
| CN201651095U (en) * | 2010-04-19 | 2010-11-24 | 贺自清 | Limiter capable of adjusting torque |
| CN102518690A (en) * | 2011-12-16 | 2012-06-27 | 三多乐精密注塑(深圳)有限公司 | Torque limiter |
| JP3186667U (en) * | 2013-08-07 | 2013-10-17 | 冨士電機精機株式会社 | Torque limiter |
| CN103671607A (en) * | 2012-09-20 | 2014-03-26 | 鸿富锦精密工业（深圳）有限公司 | Torque limiter |
| CN204371977U (en) * | 2014-12-05 | 2015-06-03 | 国家电网公司 | Limiting torque coupling |
-
2014
- 2014-12-05 CN CN201410740209.1A patent/CN104455061A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5314381A (en) * | 1991-09-27 | 1994-05-24 | Ringspann Gmbh | Detent arrangement for the coupling pin of an overload element, particularly in an overload clutch |
| CN201651095U (en) * | 2010-04-19 | 2010-11-24 | 贺自清 | Limiter capable of adjusting torque |
| CN102518690A (en) * | 2011-12-16 | 2012-06-27 | 三多乐精密注塑(深圳)有限公司 | Torque limiter |
| CN103671607A (en) * | 2012-09-20 | 2014-03-26 | 鸿富锦精密工业（深圳）有限公司 | Torque limiter |
| JP3186667U (en) * | 2013-08-07 | 2013-10-17 | 冨士電機精機株式会社 | Torque limiter |
| CN204371977U (en) * | 2014-12-05 | 2015-06-03 | 国家电网公司 | Limiting torque coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
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| RJ01 | Rejection of invention patent application after publication |