CN105276206A - Torque limiting device and valve with same - Google Patents
Torque limiting device and valve with same Download PDFInfo
- Publication number
- CN105276206A CN105276206A CN201510748279.6A CN201510748279A CN105276206A CN 105276206 A CN105276206 A CN 105276206A CN 201510748279 A CN201510748279 A CN 201510748279A CN 105276206 A CN105276206 A CN 105276206A
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- CN
- China
- Prior art keywords
- support
- bearing
- valve
- torque limiting
- rotation support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
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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
- F16K1/02—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 invention relates to a torque limiting device and a valve with the same. Overload protection on a screw rod can be achieved. A threaded hole is formed in a valve rod nut of the torque limiting device in the axial direction of the valve rod nut. The valve rod nut is fixedly sleeved with a clutch support. A rotation preventing support is located under the clutch support and is fixedly arranged. The upper surface of a friction plate makes contact with the clutch support, the lower surface of the friction plate makes contact with the rotation preventing support, and the clutch support and the rotation preventing support are connected through the friction plate. The valve rod nut is sleeved with a bearing which is sleeved with a bearing liner. A spring is located under the rotation preventing support, the upper end of the spring is connected with the rotation preventing support, and the lower end of the spring is connected with the bearing liner. The spring upwards pushes the rotation preventing support, the valve rod nut is sleeved with a pressing nut which is in threaded connection with the valve rod nut, and the pressing nut downwards presses the clutch support. According to the valve, the rotation preventing support and stand columns are fixed, and the screw rod is in threaded connection with the threaded hole.
Description
Technical field
The present invention relates to a kind of torque limiting apparatus and the valve with this torque limiting apparatus.
Background technique
In valve using process, if screw rod Vertical direction runs into larger resistance and is rotated further screw rod may damage corresponding part.Application number be 201020538429.3 Chinese patent disclose a kind of emptying sewage globe valve structure, it is provided with torque limiting mechanism, but the effect of this mechanism is reduction operation moment of torsion, and does not have protective action when transshipping to screw rod.
Summary of the invention
The object of the invention is to overcome above shortcomings in prior art, and a kind of reasonable in design is provided, can the torque limiting apparatus of overload protection is realized to screw rod and there is the valve of this torque limiting apparatus.
The present invention's adopted technological scheme that solves the problem is: a kind of torque limiting apparatus, is characterized in that: comprise gland nut, clutch support, friction plate, anti-rotation support, spring, bearing shim, bearing and Stem Mut; The axis of Stem Mut has tapped hole; Clutch support suit is fixed on outside Stem Mut; Anti-rotation support is positioned at below clutch support; Anti-rotation support is fixedly installed; The upper surface of friction plate contacts with clutch support, and lower surface contacts with anti-rotation support, and clutch support is connected by friction plate with anti-rotation support; Bearing housing is contained in outside Stem Mut; Bearing shim is sleeved on bearing; Spring is positioned at below anti-rotation support, and its upper end is connected with anti-rotation support, and lower end is connected with bearing shim; Spring upwards pushes up anti-rotation support; Gland nut is sleeved on outside Stem Mut, and is threaded with Stem Mut; Gland nut is to pressing down clutch support.
The bottom of Stem Mut of the present invention is provided with bearing support, and bearing seat is below bearing.
Clutch support of the present invention and Stem Mut adopt be threaded fixing.
Bearing of the present invention is thrust-bearing.
Spring of the present invention is butterfly spring.
A kind of valve, comprises screw rod and column; Column is fixedly installed in valve, and the valve gap of itself and valve is fixed; Bolt rotary is arranged in valve, and it is connected with the handwheel of valve; It is characterized in that: this valve has the torque limiting apparatus described in the arbitrary claim of Claims 1 to 5; Described anti-rotation support and described column are fixed; Described screw rod is threaded with described tapped hole.
The present invention compared with prior art, has the following advantages and effect: when screw rod Vertical direction runs into larger resistance, can produce relative rotation between clutch support and anti-rotation support, and namely screw rod skids, and makes screw rod realize overload protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention with the valve of torque limiting apparatus.
Fig. 2 is the structure for amplifying schematic diagram of the part A of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, also by embodiment, the present invention is described in further detail, and following examples are explanation of the invention and the present invention is not limited to following examples.
See Fig. 1 and Fig. 2, the torque limiting apparatus of the embodiment of the present invention comprises gland nut 1, clutch support 2, friction plate 3, anti-rotation support 4, spring 5, bearing shim 6, bearing 7 and Stem Mut 8.
The axis of Stem Mut 8 has tapped hole 9, and tapped hole 9 needs the parts of torque limiting on erection unit.
Stem Mut 8 outer side surface has screw thread.
Clutch support 2 is sleeved on outside Stem Mut 8, and with Stem Mut 8 adopt be threaded fixing.
Anti-rotation support 4 is positioned at below 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, and clutch support 2 is connected by friction plate 3 with anti-rotation support 4.
Bearing 7 is sleeved on outside Stem Mut 8.Bearing 7 is thrust-bearing.When screw rod 11 skids, when Stem Mut 8 rotates, bearing 7 can reduce the resistance that Stem Mut 8 rotates.
The bottom of Stem Mut 8 is provided with bearing support 10, and bearing support 10 is positioned at below bearing 7, plays a supporting role to bearing 7, prevent bearing 7 due to deadweight or spring 5 pressure and come off from Stem Mut 8.
Bearing shim 6 is sleeved on bearing 7.Bearing shim 6 ensures thrust-bearing 7 uniform force, prevents dust foreign material from entering thrust-bearing 7.
Spring 5 is positioned at below 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 upwards pushes up anti-rotation support 4.Spring 5 is butterfly spring.Bearing shim 6 pairs of springs 5 also play the effect of support.
Gland nut 1 is sleeved on outside Stem Mut 8, and is threaded with Stem Mut 8.Gland nut 1 is to pressing down clutch support 2.
The valve with torque limiting apparatus comprises screw rod 11, column 12 and above-mentioned torque limiting apparatus.
Column 12 is fixedly installed in valve, and the valve gap of itself and valve is fixed.Screw rod 11 rotates and is arranged in valve, and it is connected with the handwheel of valve.This is known technology.
Anti-rotation support 4 is fixed with column 12.
The periphery of screw rod 11 has screw thread, and screw rod 11 is threaded with tapped hole 9 by this screw thread.
Rotate gland nut 1, adjust the impacting force of gland nut 1 and spring 5 like this, clutch support 2 and anti-rotation support 4 are tightly fit together by friction plate 3.Screw rod 11 turns clockwise, if now Vertical direction does not run into larger resistance, Stem Mut 8 does not move, and screw rod 11 rotates and moves downward.When screw rod 11 Vertical direction runs into larger resistance, by the transmission of screw thread, it is that counterclockwise upwards power is passed to clutch support 2 by Stem Mut 8 that Stem Mut 8 is subject to the reaction force of screw rod 11 to it, and power upwards makes the pressure acted on friction plate 3 reduce.When friction plate 3 and the frictional force between clutch support 2 and anti-rotation support 4 are reduced to certain value, along with screw rod 11 rotates, can produce relative rotation between clutch support 2 and anti-rotation support 4, namely screw rod 11 skids, and makes screw rod 11 realize overload protection.
In addition, it should be noted that, the specific embodiment described in this specification, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this specification is only to structure example of the present invention explanation.
Claims (6)
1. a torque limiting apparatus, is characterized in that: comprise gland nut, clutch support, friction plate, anti-rotation support, spring, bearing shim, bearing and Stem Mut; The axis of Stem Mut has tapped hole; Clutch support suit is fixed on outside Stem Mut; Anti-rotation support is positioned at below clutch support; Anti-rotation support is fixedly installed; The upper surface of friction plate contacts with clutch support, and lower surface contacts with anti-rotation support, and clutch support is connected by friction plate with anti-rotation support; Bearing housing is contained in outside Stem Mut; Bearing shim is sleeved on bearing; Spring is positioned at below anti-rotation support, and its upper end is connected with anti-rotation support, and lower end is connected with bearing shim; Spring upwards pushes up anti-rotation support; Gland nut is sleeved on outside Stem Mut, and is threaded with Stem Mut; Gland nut is to pressing down clutch support.
2. torque limiting apparatus according to claim 1, is characterized in that: the bottom of described Stem Mut is provided with bearing support, and bearing seat is below bearing.
3. torque limiting apparatus according to claim 1 and 2, is characterized in that: described clutch support and Stem Mut adopt be threaded fixing.
4. torque limiting apparatus according to claim 1 and 2, is characterized in that: described bearing is thrust-bearing.
5. torque limiting apparatus according to claim 1 and 2, is characterized in that: described spring is butterfly spring.
6. a valve, comprises screw rod and column; Column is fixedly installed in valve, and the valve gap of itself and valve is fixed; Bolt rotary is arranged in valve, and it is connected with the handwheel of valve; It is characterized in that: this valve has the torque limiting apparatus described in the arbitrary claim of Claims 1 to 5; Described anti-rotation support and described column are fixed; Described screw rod is threaded with described tapped hole.
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 true CN105276206A (en) | 2016-01-27 |
| CN105276206B CN105276206B (en) | 2017-12-12 |
Family
ID=55145733
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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224641A (en) * | 2016-09-13 | 2016-12-14 | 航天长征化学工程股份有限公司 | Valve spindle axial positioning support |
| CN107387850A (en) * | 2017-07-05 | 2017-11-24 | 天津吉秝机电设备有限公司 | A kind of overload protective device for Valve controlling |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224641A (en) * | 2016-09-13 | 2016-12-14 | 航天长征化学工程股份有限公司 | Valve spindle axial positioning support |
| 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 |
| CN107387850A (en) * | 2017-07-05 | 2017-11-24 | 天津吉秝机电设备有限公司 | A kind of overload protective device for Valve controlling |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105276206B (en) | 2017-12-12 |
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