CN206802457U - A kind of manual operating device of valve torque limit structure - Google Patents
A kind of manual operating device of valve torque limit structure Download PDFInfo
- Publication number
- CN206802457U CN206802457U CN201720518202.4U CN201720518202U CN206802457U CN 206802457 U CN206802457 U CN 206802457U CN 201720518202 U CN201720518202 U CN 201720518202U CN 206802457 U CN206802457 U CN 206802457U
- Authority
- CN
- China
- Prior art keywords
- valve
- operating device
- manual operating
- torque
- hand wheel
- 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.)
- Expired - Fee Related
Links
Landscapes
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a kind of manual operating device of valve torque limit structure, including casing, drive shaft, large bevel gear, valve stem nut, locking nut, thrust bearing, connect disk, cone pinion b, torque limiter, hand wheel shaft and handwheel, it solves the Major Difficulties of manual operating device of valve, so that manual operating device of valve is when overload or mechanical breakdown cause moment of torsion to exceed setting value, it limits the torsion that transmission system is driven in the form of skidding, voluntarily recover connection after overload condition disappears, the excessive situation of manually operated power is avoided to occur, reduce the cost allowance in the case of failure, and reduce the manufacturing cost of the whole hand gear when valve only needs hand gear output torque.
Description
(1) technical field：
Manual operating device of valve technical field is the utility model is related to, particularly a kind of manual operating device of valve torque limit knot
Structure.
(2) background technology：
Valve actuator is a kind of electromechanical equipment for driving valve to be opened and closed, and its drive form is broadly divided into electronic
Device, pneumatic means, hand gear.General hand gear is used for directly valve being carried out opening and closing operation or is used as combined electrical
The two reduction gear of dynamic device.The manual operating device of valve of bevel gear drive mechanism is a kind of ripe product of structure, but is made
It has also been found that crossing some problems in, it is mainly reflected in manual operating device of valve and occurs overloading or during mechanical breakdown, production may be triggered
Product damage.
In known technology, the manual operating device of valve of bevel gear drive mechanism common at present can have two kinds of patterns, Yi Zhongshi
Only torque of the output to valve rod, another kind are can to export the torque to valve rod simultaneously and bear axial thrust.
As seen from Figure 1, when rotating handwheel 11, the concomitant rotations of cone pinion a 3 are simultaneously driven large bevel gear 4 and rotated, with gamp
The drive shaft 2 that gear 4 connects rotates with.Drive shaft 2 built with valve stem nut 5, both use inside and outside involute spline transmission turn round
Square, locking nut 6 fix axial location of the valve stem nut 5 in drive shaft 2, and valve stem nut 5 is with valve rod top with trapezoidal thread
Engagement.Casing 1 and the position that disk 8 constrains drive shaft 2 is connect, the both ends of drive shaft 2 are equipped with thrust ball bearing 7.With drive shaft 2
With the rotation of valve stem nut 5, valve rod makees corresponding up and down motion, and then realizes the keying of valve.
Following technological difficulties be present in the manual operating device of valve of this kind of structure：
(1) valve rod self-locking after axial force F increases with torque M, the time of overload provides far beyond standard, so that so that housing
Or connecting portion damage.
(2) larger axial force makes the seal pressure of flashboard (flap) and valve seat have been achieved with the sealing of valve, but valve
The pressure of the inspection of door pump or working media, temperature change can increase the thrust (mainly criticizing sealed stop valve) of valve rod again sometimes, enter
And hand gear is caused to damage.
Above mentioned problem is not mainly due to caused by the handwheel input power application limitation of manual operating device of valve.
(3) utility model content：
The purpose of this utility model is to provide a kind of manual operating device of valve torque limit structure, and it is manual that it solves valve
The Major Difficulties of device so that for manual operating device of valve when overload or mechanical breakdown cause moment of torsion to exceed setting value, it is to beat
The torsion that sliding form limitation transmission system is driven, voluntarily recovers connection after overload condition disappears, avoids manually operated power
Excessive situation occurs, and reduces the cost allowance in the case of failure, and reduce only needs hand gear output to turn in valve
The manufacturing cost of whole hand gear during square.
The technical solution of the utility model：A kind of manual operating device of valve torque limit structure, including it is casing, drive shaft, big
Bevel gear, valve stem nut, locking nut, thrust bearing, disk and handwheel are connect, the casing is fixedly connected with connecing disk, the driving
By thrust bearing respectively with casing and connecing disk installation and fixing, large bevel gear suit is on the driving shaft and fixed at axle both ends,
The valve stem nut is connected with drive shaft by spline, and the locking nut is installed on the driving shaft and presses valve stem nut, its
Be characterised by also including cone pinion b, torque limiter and hand wheel shaft, the cone pinion b and large bevel gear be intermeshed with
Form transmission, the side expansion set connection of the cone pinion b and torque limiter, the opposite side connection of the torque limiter
One end of hand wheel shaft, the other end of the hand wheel shaft are fixedly connected with the hand wheel.
Thrust bearing described above is thrust ball bearing.
Operation principle of the present utility model：When manual operating device of valve works, torque limiter is connected with cone pinion, its
Torque pass order is that handwheel drives torque limiter to rotate, and torque limiter, which rotates, drives cone pinion b to rotate, small bevel gear
Wheel b drives the large bevel gear being engaged with to rotate, and torque is delivered in drive shaft, so as to control and drive the valve rod of axis connection
Rotate, the opening and closing of control valve.When occurring overloading or mechanical breakdown, and torque needed for causing exceedes the setting value that handwheel provides
When, torque limiter limits the moment of torsion that transmission system is driven in the form of skidding, when overload or the disappearance of mechanical breakdown situation,
Recover connection, so as to avoid manual operating device of valve from the infringement of housing and connecting portion occur.
The utility model has the advantage that and good effect：(1) demarcation is realized to the input torque of handwheel；(2) reduce
Due to mechanical loss caused by product bug；(3) when overloading occurs in manual operating device of valve or during mechanical breakdown, passes through torque limit
Device protects housing and connecting portion.
(4) illustrate：
Fig. 1 is manual operating device of valve structural representation in known technology；
Fig. 2 is a kind of manual operating device of valve torque limit structural representation of the utility model；
Wherein, 1 is casing；2 be drive shaft；3 be cone pinion a；4 be large bevel gear；5 be valve stem nut；6 be locking screw
It is female；7 be thrust ball bearing；8 be to connect disk；9 be torque limiter；10 be hand wheel shaft；11 be handwheel；12 be cone pinion b.
(5) embodiment
Embodiment：A kind of manual operating device of valve torque limit structure, including casing 1, drive shaft 2, large bevel gear 4, valve rod
Nut 5, locking nut 6, thrust bearing, disk 8 and handwheel 11 are connect, the casing 1 is fixedly connected with connecing disk 8,2 liang of the drive shaft
End by thrust bearing respectively with casing 1 and connect disk 8 installation fix, the large bevel gear 4 be set with driving shaft 2 and fix,
The valve stem nut 5 is connected with drive shaft 2 by spline, and the locking nut 6 is installed on driving shaft 2 and presses valve stem nut
5, it is characterised in that also including cone pinion b 12, torque limiter 9 and hand wheel shaft 10, the cone pinion b 12 and gamp tooth
The intermeshing of wheel 4 is to form transmission, and the cone pinion b 12 is connected with the side expansion set of torque limiter 9, the moment of torsion
One end of the opposite side connection hand wheel shaft 10 of limiter 9, the other end of the hand wheel shaft 10 are fixedly connected with handwheel 11.
Thrust bearing described above is thrust ball bearing 7.
Claims (2)
1. a kind of manual operating device of valve torque limit structure, including casing, drive shaft, large bevel gear, valve stem nut, locking screw
Mother, thrust bearing, disk and handwheel are connect, the casing is fixedly connected with connecing disk, and the drive shaft both ends are distinguished by thrust bearing
With casing and connecing disk installation and fixing, large bevel gear suit is on the driving shaft and fixed, and the valve stem nut leads to drive shaft
Spline connection is crossed, the locking nut is installed on the driving shaft and presses valve stem nut, it is characterised in that also including cone pinion
B, torque limiter and hand wheel shaft, the cone pinion b are intermeshed with large bevel gear to form transmission, the cone pinion
The side expansion set of b and torque limiter connects, one end of the opposite side connection hand wheel shaft of the torque limiter, the hand wheel shaft
The other end be fixedly connected with the hand wheel.
2. a kind of manual operating device of valve torque limit structure according to claim 1, it is characterised in that the thrust bearing is
Thrust ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720518202.4U CN206802457U (en) | 2017-05-11 | 2017-05-11 | A kind of manual operating device of valve torque limit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720518202.4U CN206802457U (en) | 2017-05-11 | 2017-05-11 | A kind of manual operating device of valve torque limit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802457U true CN206802457U (en) | 2017-12-26 |
Family
ID=60740424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720518202.4U Expired - Fee Related CN206802457U (en) | 2017-05-11 | 2017-05-11 | A kind of manual operating device of valve torque limit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953359A (en) * | 2019-12-31 | 2020-04-03 | 徐学新 | Multi-rotation type hydraulic valve |
-
2017
- 2017-05-11 CN CN201720518202.4U patent/CN206802457U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953359A (en) * | 2019-12-31 | 2020-04-03 | 徐学新 | Multi-rotation type hydraulic valve |
| CN110953359B (en) * | 2019-12-31 | 2023-03-07 | 徐学新 | Multi-rotation type hydraulic valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204099618U (en) | Butterfly valve | |
| US9080656B2 (en) | Apparatus for converting a rotational movement into an axial movement | |
| CN102656395A (en) | Coupling apparatus for use with electric actuators | |
| CN206802457U (en) | A kind of manual operating device of valve torque limit structure | |
| CN106286722B (en) | It is convenient for the deceleration tooth case of angular turn limit | |
| CN208221734U (en) | A kind of high-pressure large-caliber valve of air pressure driving worm and gear | |
| CN206682407U (en) | The interchangeable hand gear for connecing disk | |
| CN201057308Y (en) | Minitype multi-rotation valve electric activator | |
| CN104595553A (en) | Counting manual electric hydraulic control sluice valve | |
| US2954703A (en) | Fast-acting valve system | |
| CN201723731U (en) | Bidirectional rotation blocking-free gear-driven electromechanical valve specially used for gas meter | |
| CN101907194B (en) | Bidirectional blockage-free gear-driven special electromechanical valve for gas meters | |
| CN208185525U (en) | A kind of combination valve | |
| CN104309087B (en) | Injection molding machine die adjusting mechanism with brake locking structure, and die adjusting method thereof | |
| CN209025789U (en) | System is directly controlled in a kind of hydraulic motor rotary motion | |
| US20120280155A1 (en) | Actuating device for housed or housingless valves | |
| CN109340405A (en) | A kind of electric up-down rotary spool triple valve | |
| CN107448663A (en) | It is a kind of to close the gentle electronic rotating cylinder vacuum valves of DN400 of quick washing | |
| CN102818062B (en) | A kind of small capacity double for gas meter is to without stall gear transmission electromechanical valve | |
| CN209245347U (en) | A kind of electric up-down rotary spool triple valve | |
| CN203363354U (en) | Electric valve actuator worm shaft sleeve structure | |
| CN201065984Y (en) | Double-drive valve drive device | |
| WO2017161821A1 (en) | Clutch gear protection apparatus | |
| CN206280590U (en) | A kind of valve actuator assigned in electric operator | |
| CN214466205U (en) | Parallel double-gate-plate gate valve with rotation prevention function for air-lock gate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20210511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |