CN105276206B - A kind of torque limiting apparatus and the valve with the torque limiting apparatus - Google Patents
A kind of torque limiting apparatus and the valve with the torque limiting apparatus Download PDFInfo
- Publication number
- CN105276206B CN105276206B CN201510748279.6A CN201510748279A CN105276206B CN 105276206 B CN105276206 B CN 105276206B CN 201510748279 A CN201510748279 A CN 201510748279A CN 105276206 B CN105276206 B CN 105276206B
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- Prior art keywords
- bearing
- rotation support
- valve stem
- support
- valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to a kind of torque limiting apparatus and with the torque limiting apparatus valve, overload protection can be realized to screw rod.The axial direction of the valve stem nut of torque limiting apparatus is provided with screwed hole；Clutch support suit is fixed on outside valve stem nut；Anti-rotation support is located at below clutch support；Anti-rotation support is fixedly installed；The upper surface of friction plate is contacted with clutch support, and lower surface contacts with anti-rotation support, and clutch support is connected with anti-rotation support by friction plate；Bearing holder (housing, cover) is outside valve stem nut；Bearing shim is sleeved on bearing；Spring is located at below anti-rotation support, and its upper end is connected with anti-rotation support, and lower end is connected with bearing shim；Spring pushes up anti-rotation support upwards；Clamp nut is sleeved on outside valve stem nut, and is threadedly coupled with valve stem nut；Clamp nut is pressed downward clutch support.In valve；Described anti-rotation support is fixed with described column；Described screw rod is threadedly coupled with described screwed hole.
Description
Technical field
The present invention relates to a kind of torque limiting apparatus and with the torque limiting apparatus valve.
Background technology
During valve use, it may be damaged if being rotated further screw rod if screw rod vertical direction runs into larger resistance
Bad corresponding component.The Chinese patent of Application No. 201020538429.3 discloses a kind of emptying sewage globe valve structure, and it sets
There is no protective effect when being equipped with torque limiting mechanism, but the effect of the mechanism is to reduce operation moment of torsion, and screw rod being overloaded.
The content of the invention
It is an object of the invention to overcome above shortcomings in the prior art, and provide it is a kind of it is reasonable in design,
The torque limiting apparatus of overload protection and the valve with the torque limiting apparatus can be realized to screw rod.
Technical scheme is used by the present invention solves the above problems：A kind of torque limiting apparatus, it is characterised in that：Including
Clamp nut, clutch support, friction plate, anti-rotation support, spring, bearing shim, bearing and valve stem nut；The axial direction of valve stem nut
It is provided with screwed hole；Clutch support suit is fixed on outside valve stem nut；Anti-rotation support is located at below clutch support；Anti-rotation support is fixed
Set；The upper surface of friction plate contacts with clutch support, and lower surface contacts with anti-rotation support, and clutch support passes through with anti-rotation support
Friction plate connects；Bearing holder (housing, cover) is outside valve stem nut；Bearing shim is sleeved on bearing；Spring is located at below anti-rotation support, its
Upper end is connected with anti-rotation support, and lower end is connected with bearing shim；Spring pushes up anti-rotation support upwards；Clamp nut is sleeved on valve rod spiral shell
It is female outer, and be threadedly coupled with valve stem nut；Clamp nut is pressed downward clutch support.
The bottom of valve stem nut of the present invention is provided with bearing block, and bearing seat is below bearing.
Clutch support of the present invention uses with valve stem nut and is threadedly coupled fixation.
Bearing of the present invention is thrust bearing.
Spring of the present invention is butterfly spring.
A kind of valve, including screw rod and column；Column is fixedly installed in valve, and the bonnet of itself and valve is fixed；Screw rod
It is rotatably arranged in valve, it is connected with the handwheel of valve；It is characterized in that：The valve has described torque limiting apparatus；
Described anti-rotation support is fixed with described column；Described screw rod is threadedly coupled with described screwed hole.
The present invention compared with prior art, has advantages below and effect：When screw rod vertical direction runs into larger resistance,
It can be produced relative rotation between clutch support and anti-rotation support, i.e., screw rod skids, and screw rod is realized overload protection.
Brief description of the drawings
Fig. 1 is the structural representation of valve of the embodiment of the present invention with torque limiting apparatus.
Fig. 2 is the mplifying structure schematic diagram of Fig. 1 part A.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is described in further detail by embodiment, and following examples are to this hair
Bright explanation and the invention is not limited in following examples.
Referring to Fig. 1 and Fig. 2, the torque limiting apparatus of the embodiment of the present invention includes clamp nut 1, clutch support 2, friction plate
3rd, anti-rotation support 4, spring 5, bearing shim 6, bearing 7 and valve stem nut 8.
The axial direction of valve stem nut 8 is provided with screwed hole 9, and screwed hole 9 is used to install the part for needing to limit moment of torsion in equipment.
The lateral surface of valve stem nut 8 is provided with screw thread.
Clutch support 2 is sleeved on outside valve stem nut 8, and is used with valve stem nut 8 and be threadedly coupled fixation.
Anti-rotation support 4 is located at the lower section of clutch support 2.Anti-rotation support 4 is fixedly installed.
The upper surface of friction plate 3 contacts with clutch support 2, and lower surface contacts with anti-rotation support 4, clutch support 2 and anti-rotation
Support 4 is connected by friction plate 3.
Bearing 7 is sleeved on outside valve stem nut 8.Bearing 7 is thrust bearing.When screw rod 11 skids, when valve stem nut 8 rotates,
Bearing 7 can reduce the resistance of the rotation of valve stem nut 8.
The bottom of valve stem nut 8 is provided with bearing block 10, and bearing block 10 is located at the lower section of bearing 7, and support is played to bearing 7 and is made
With, prevent bearing 7 due to deadweight or spring 5 pressure and come off from valve stem nut 8.
Bearing shim 6 is sleeved on bearing 7.Bearing shim 6 ensures the uniform force of thrust bearing 7, prevents dust debris from entering
Enter thrust bearing 7.
Spring 5 is located at the lower section of anti-rotation support 4, and its upper end is connected with anti-rotation support 4, and lower end is connected with bearing shim 6.Spring
5 push up anti-rotation support 4 upwards.Spring 5 is butterfly spring.Bearing shim 6 also acts as the effect of support to spring 5.
Clamp nut 1 is sleeved on outside valve stem nut 8, and is threadedly coupled with valve stem nut 8.Clamp nut 1 is pressed downward clutch
Support 2.
Valve with torque limiting apparatus includes screw rod 11, column 12 and above-mentioned torque limiting apparatus.
Column 12 is fixedly installed in valve, and the bonnet of itself and valve is fixed.Screw rod 11 is rotatably arranged in valve, its with
The handwheel connection of valve.This is known technology.
Anti-rotation support 4 is fixed with column 12.
The periphery of screw rod 11 is provided with screw thread, and screw rod 11 is threadedly coupled by the screw thread with screwed hole 9.
Clamp nut 1 is rotated, the thrust of clamp nut 1 and spring 5 is so adjusted, makes clutch support 2 and anti-rotation support 4
Tightly fit together by friction plate 3.Screw rod 11 turns clockwise, if now vertical direction does not run into larger resistance,
Valve stem nut 8 does not move, and the rotation of screw rod 11 moves downward.When the vertical direction of screw rod 11 runs into larger resistance, pass through screw thread
Transmit, valve stem nut 8 is upward counterclockwise to its reaction force by screw rod 11, and valve stem nut 8 transmits the force to clutch
Support 2, the pressure that upward power makes to act on friction plate 3 reduce.When between friction plate 3 and clutch support 2 and anti-rotation support 4
Frictional force when being reduced to certain value, as screw rod 11 rotates, can be produced relative rotation between clutch support 2 and anti-rotation support 4,
I.e. screw rod 11 skids, and screw rod 11 is realized overload protection.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, it is named
Title etc. can be different, and the above content described in this specification is only to structure example explanation of the present invention.
Claims (6)
- A kind of 1. torque limiting apparatus, it is characterised in that：Including clamp nut, clutch support, friction plate, anti-rotation support, spring, Bearing shim, bearing and valve stem nut；The axial direction of valve stem nut is provided with screwed hole；Clutch support suit is fixed on valve stem nut Outside；Anti-rotation support is located at below clutch support；Anti-rotation support is fixedly installed；The upper surface of friction plate contacts with clutch support, under Surface is contacted with anti-rotation support, and clutch support is connected with anti-rotation support by friction plate；Bearing holder (housing, cover) is outside valve stem nut；Bearing Pad is sleeved on bearing；Spring is located at below anti-rotation support, and its upper end is connected with anti-rotation support, and lower end connects with bearing shim Connect；Spring pushes up anti-rotation support upwards；Clamp nut is sleeved on outside valve stem nut, and is threadedly coupled with valve stem nut；Clamp nut It is pressed downward clutch support.
- 2. torque limiting apparatus according to claim 1, it is characterised in that：The bottom of described valve stem nut is provided with axle Bearing, bearing seat is below bearing.
- 3. torque limiting apparatus according to claim 1 or 2, it is characterised in that：Described clutch support and valve stem nut Fixed using threaded connection.
- 4. torque limiting apparatus according to claim 1 or 2, it is characterised in that：Described bearing is thrust bearing.
- 5. torque limiting apparatus according to claim 1 or 2, it is characterised in that：Described spring is butterfly spring.
- 6. a kind of valve, including screw rod and column；Column is fixedly installed in valve, and the bonnet of itself and valve is fixed；Screw rod turns Dynamic to be arranged in valve, it is connected with the handwheel of valve；It is characterized in that：The valve has any right of Claims 1 to 5 will Seek described torque limiting apparatus；Described anti-rotation support is fixed with described column；Described screw rod and described screwed hole Threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510748279.6A CN105276206B (en) | 2015-11-06 | 2015-11-06 | A kind of torque limiting apparatus and the valve with the torque limiting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510748279.6A CN105276206B (en) | 2015-11-06 | 2015-11-06 | A kind of torque limiting apparatus and the valve with the torque limiting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105276206A CN105276206A (en) | 2016-01-27 |
| CN105276206B true CN105276206B (en) | 2017-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510748279.6A Active CN105276206B (en) | 2015-11-06 | 2015-11-06 | A kind of torque limiting apparatus and the valve with the torque limiting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105276206B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224641B (en) * | 2016-09-13 | 2024-02-20 | 航天长征化学工程股份有限公司 | Valve spindle axial positioning bracket |
| CN107387850B (en) * | 2017-07-05 | 2023-12-22 | 天津吉秝机电设备有限公司 | Overload protector for valve control |
| CN108246865A (en) * | 2018-03-10 | 2018-07-06 | 温州中科自动化设备有限公司 | A kind of pressure-bearing electric cylinders on stamping equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260458A (en) * | 1999-01-12 | 2000-07-19 | 韦兰公司 | High-pressure valve |
| CN202469143U (en) * | 2012-03-27 | 2012-10-03 | 重庆杰诚逊自动化仪表有限公司 | Torque control device of electric operator torque sensor |
| CN102734548A (en) * | 2011-03-30 | 2012-10-17 | 韦特柯格雷公司 | Differential screw assembly for varying torque for valve |
| CN104132156A (en) * | 2014-07-18 | 2014-11-05 | 凯喜姆阀门有限公司 | Low-torque plug valve |
| CN204004738U (en) * | 2014-07-28 | 2014-12-10 | 郑州市郑蝶阀门有限公司 | A kind of butterfly valve with overload protection |
| CN204328195U (en) * | 2014-12-18 | 2015-05-13 | 南京科远自动化集团股份有限公司 | A kind of removable high thrust straight journey converting unit support |
| JP2015169280A (en) * | 2014-03-07 | 2015-09-28 | 大豊工業株式会社 | valve assembly |
-
2015
- 2015-11-06 CN CN201510748279.6A patent/CN105276206B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260458A (en) * | 1999-01-12 | 2000-07-19 | 韦兰公司 | High-pressure valve |
| CN102734548A (en) * | 2011-03-30 | 2012-10-17 | 韦特柯格雷公司 | Differential screw assembly for varying torque for valve |
| CN202469143U (en) * | 2012-03-27 | 2012-10-03 | 重庆杰诚逊自动化仪表有限公司 | Torque control device of electric operator torque sensor |
| JP2015169280A (en) * | 2014-03-07 | 2015-09-28 | 大豊工業株式会社 | valve assembly |
| CN104132156A (en) * | 2014-07-18 | 2014-11-05 | 凯喜姆阀门有限公司 | Low-torque plug valve |
| CN204004738U (en) * | 2014-07-28 | 2014-12-10 | 郑州市郑蝶阀门有限公司 | A kind of butterfly valve with overload protection |
| CN204328195U (en) * | 2014-12-18 | 2015-05-13 | 南京科远自动化集团股份有限公司 | A kind of removable high thrust straight journey converting unit support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105276206A (en) | 2016-01-27 |
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