CN204153293U - A kind of straight stroke valve final controlling element - Google Patents
A kind of straight stroke valve final controlling element Download PDFInfo
- Publication number
- CN204153293U CN204153293U CN201420596300.6U CN201420596300U CN204153293U CN 204153293 U CN204153293 U CN 204153293U CN 201420596300 U CN201420596300 U CN 201420596300U CN 204153293 U CN204153293 U CN 204153293U
- Authority
- CN
- China
- Prior art keywords
- nut
- screw mandrel
- piston rod
- screw
- drive block
- 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
A kind of straight stroke valve final controlling element, comprises COMM communication, it is characterized in that: COMM communication has a supporting base, have a switching chamber in the middle part of this supporting base; Run through with the screw mandrel of worm gear and switch chamber; A rectangular through-hole is offered in this switching chamber in the horizontal direction; Being provided with two in this rectangular through-hole can the half-nut of obvolvent screw mandrel, and the inner side of half-nut is equipped with the screw thread that can screw with screw mandrel; The outside of half-nut is provided with drive block, this drive block can pull or promote half-nut away from or near screw mandrel; Rotating cam is sleeved on the outer periphery switching chamber, and this rotating cam inwall is provided with archimedes spiral groove, and one end that drive block is not connected with half-nut is located in archimedes spiral groove by pin card.The utility model is mainly used in linear motion valve, and has the advantages such as structure is simple, reliability is high, easy to use, durable in use, cost is lower.
Description
Technical field
The utility model relates to linear motion valve, as gate valve, stop valve etc., and particularly a kind of straight stroke valve final controlling element being used to open or close above-mentioned valve.
Background technique
In the linear motion valves such as existing gate valve, stop valve, in order to Automated condtrol can be realized, save the objects such as labour force, therefore original manual operating device and Pneumatic actuator are combined togather, define existing straight stroke valve final controlling element.This control mechanism possesses pneumatic operation and manually-operable two kinds of functions, and overall structure is divided into upper and lower two parts, and top is manual operating device, and bottom is Pneumatic actuator.When starting pneumatic operation, pressurized gas enters cylinder and promotes inner piston, drives piston rod extended or retracted, and then realizes closedown or the unlatching of valve; When starting manually-operable, handwheel on rotation manual device, torsion is delivered on worm screw by handwheel, torsion is delivered to worm gear by worm screw again, torsion is delivered on the screw mandrel with worm gear by worm gear rotation, screw mandrel rotates displacement downward or upward, and then screw mandrel promotes or pulls the piston rod in cylinder to carry out corresponding action, thus realizes closedown or the unlatching of valve.And whether starting manually-operable, this just needs to be determined by the COMM communication be arranged on manual operating device.But, the single cam mechanism of the many employings of existing COMM communication, half-nut (totally two) is for monolateral stressed, factor due to frictional force is easy to half-nut is tilted, cause switching not thorough, damage half-nut or screw mandrel, even whole man-operated mechanism lost efficacy, and have impact on the normal work of linear motion valve.
Model utility content
The purpose of this utility model be in order to solve in existing straight stroke valve final controlling element pneumatic, manually-operable COMM communication reliability is low, use the shortcoming such as inconvenient, short-lived, and provide and a kind ofly have that structure is simple, reliability is high, easy to use, durable in use, the lower-cost straight stroke valve final controlling element possessing pneumatic operation and manually-operable COMM communication.
The technological scheme that the utility model technical solution problem adopts is:
A kind of straight stroke valve final controlling element, comprises pneumatic operation and manually-operable COMM communication.Wherein, this COMM communication has a supporting base, has a switching chamber in the middle part of this supporting base; Run through with the screw mandrel of worm gear and switch chamber; A rectangular through-hole is offered in this switching chamber in the horizontal direction; Being provided with two in this rectangular through-hole can the half-nut of obvolvent screw mandrel, and the inner side of half-nut is equipped with the screw thread that can screw with screw mandrel; The outside of half-nut is provided with drive block, this drive block can pull or promote half-nut away from or near screw mandrel; Rotating cam is sleeved on the outer periphery switching chamber, and this rotating cam inwall is provided with archimedes spiral groove, and one end that drive block is not connected with half-nut is located in archimedes spiral groove by pin card.
By implementing the straight stroke valve final controlling element that technique scheme obtains, because its pneumatic operation and manually-operable COMM communication formed by the parts and components with simple and mechanical shape, it is easy to assembly, reliable that it has simple structure, not easily there was a mechanical failure, so no matter be in reliability, or all take advantage in ease of use, property durable in use.Meanwhile, also lower in machining cost, and also for have established superior basis in maintaining from now on.
In order to and technical problem of movement velocity too fast and fragile linear motion valve excessive because of piston rod movement stroke can be solved, the utility model has also done further improvement and has added a limit stoper, is specially: screw mandrel is not connected to a place with one end of the piston rod in one end of worm gear and Pneumatic actuator by connection set; This end near piston rod is provided with the limit stoper that can limit its stroke, and this limit stoper comprises an open column shape support, and this support is fixed between supporting base and cylinder; The two-port place of support is respectively equipped with annular adjusting sleeve, screw-thread fit between this adjusting sleeve and support, and support is provided with the window being convenient to regulate adjusting sleeve to rotate; Piston rod penetrates two adjusting sleeves all completely, and piston rod between two adjusting sleeves is fixed with position-arresting disk.The maximum of piston rod can be limited by this limit stoper and stretch out stroke and maximum indentation stroke, thus avoid piston rod damages linear motion valve situation generation because exceeding restriction stroke.
In order to can slow down piston rod close or Open valve time impact force to valve, the utility model has done again further improvement, and adjusting sleeve is at least provided with a cushion pad.This cushion pad is made by damping, the good material of shock-absorbing performance.When pressurized air drive piston and piston rod high-speed motion and limit position soon close to valve complete shut-down or standard-sized sheet time, position-arresting disk contacts with loop buffer pad, because area of contact is very large and cushion pad material itself possesses good damping, shock-absorbing performance, so most kinetic energy is absorbed by the resiliently deformable of cushion pad, piston rod speed is down to lower, prevent the damage of valve opening and closing element, extend the working life of valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional view in Fig. 1;
Fig. 3 is the sectional view of supporting base;
Fig. 4 is the B-B sectional view in Fig. 3;
Fig. 5 is the sectional view of drive block;
Fig. 6 is the plan view of drive block;
Fig. 7 is the sectional view of half-nut;
Fig. 8 is the plan view of half-nut;
Fig. 9 is the cooperation figure of drive block, half-nut and supporting base;
Figure 10 is limit device structure schematic diagram.
In figure: 1. screw mandrel, 2. piston rod, 10. pneumatic operation and manually-operable COMM communication, 11. supporting bases, 12. half-nuts, 13. drive blocks, 14. rotating cams, 30. limit stoper, 31. supports, 32. adjusting sleeves, 33. position-arresting disks, 34. cushion pads, 112. switch chamber, 113. adapter cavities, 114. connection chambers, 141. archimedes spiral grooves.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As shown in Figure 1, a kind of straight stroke valve final controlling element, this control mechanism is applicable to linear motion valve, as more common gate valve, stop valve etc.This linear motion valve moves up and down by valve rod and carries out the unlatching of control valve or closing motion.The utility model is compared with straight stroke valve final controlling element of the prior art, there is the manual operating device on top and the Pneumatic actuator of bottom equally, manual operating device and Pneumatic actuator link together by connection set, and the conversion between it realizes by the COMM communication be positioned on manual operating device.Its working principle is as follows: when not needing manually-operable, now be positioned at pneumatic operation on manual operating device and manually-operable COMM communication 10 to adjust and automatically controlling shelves, at this moment valve only pressured contracting gas push piston drive piston rod 2 (being connected with the valve rod of linear motion valve for overall) to move up and down, and then control unlatching or the closing motion of linear motion valve.And when needs manually-operable, COMM communication 10 is adjusted to manual, at this moment the handwheel on rotary manual device is started, torsion is delivered to worm screw by handwheel, torsion is delivered on screw mandrel 1 by worm and wheel cooperation, screw mandrel 1 starts to rotate upwards or to bottom offset by the screw-thread fit between COMM communication 10, thus torsion is turned to pulling force upwards or downward thrust by screw mandrel 1, and then drive piston rod 2 upwards or to bottom offset by connection set, finally complete unlatching or the closing motion of linear motion valve.Certainly, before carrying out manually-operable, also will carry out some adjustment to cylinder, as opened the bypass valve being communicated with cylinder upper and lower cavity, the operation in these programs is well-known to those skilled in the art, need not describe in detail at this.
But, the pneumatic operation of the straight stroke valve final controlling element in existing and manually-operable COMM communication, because it has the defect described in background technique, therefore the utility model has carried out more superior improvement to it, thus obtain that structure is simple, easy to use, reliability is high, durable in use, lower-cost COMM communication 10, specific as follows:
COMM communication 10 included in the utility model has a supporting base 11, and this supporting base 11 connects Worm gear case, under connect Pneumatic actuator.Wherein, screw mandrel 1 is through in supporting base 11, and the position that this supporting base 11 is contacting with screw mandrel 1 is complementary fit, and screw mandrel 1 can also rotate in this supporting base 11.The switching chamber 112 that this supporting base 11 is provided with successively from top to bottom and accepts the adapter cavity 113 of screw mandrel 1, luck moves conversion and luck move the connection chamber 114 of linking.And a rectangular through-hole is offered in above-mentioned switching chamber 112 in the horizontal direction, its concrete structure as shown in Figure 4.Being provided with in this rectangular through-hole can the half-nut 12 (totally two) of obvolvent screw mandrel 1, when half-nut 12 holds screw mandrel 1 tightly, screw mandrel 1 can be assisted the torsion of rotation to be turned to pulling force to piston rod 2 or thrust with screw mandrel 1 one-tenth screw-thread fit.And in the outside of half-nut 12, the side namely do not contacted with screw mandrel 1 is connected with drive block 13, this drive block 13 can pull in rectangular through-hole or promote half-nut 12 away from or close to screw mandrel 1.Drive block 13 should be movable with the annexation of half-nut 12, can be pin connect, hinged etc., what the present embodiment adopted is that pin connects.Secondly, rotating cam 14 has also been laid in the outer periphery switching chamber 112, two archimedes spiral grooves 141 have been offered in the inner side correspondence of this rotating cam 14, also can be involute groove etc., the archimedes spiral groove 141 that the utility model adopts, thus one end that drive block 13 is not connected with half-nut 12 is fastened in this curvilinear groove by straight pin.When rotating cam 14 rotates, for drive block 13 provides the power pulling or promote half-nut 12.
The utility model pneumatic operation and manually-operable switching principle: when needing manually-operable, by the manual side of rotating cam 14 rotation direction, the principle that rotating cam 14 is rotated through Archimedes spiral pushes drive block 13 to half-nut 12, and then half-nut 12 obvolvent screw mandrel 1, with screw mandrel 1 screw-thread fit, now start rotation hand wheel.When releasing manually-operable recovers pneumatic operation, by rotating cam 14 rotation direction automatic transmission side in the other direction, this rotating cam 14 pulls drive block 13 away from half-nut 12, half-nut 12 is away from screw mandrel 1, remove the screw-thread fit with screw mandrel 1, screw mandrel 1 can only rotate, and no longer upper and lower displacement occurs.
The utility model, in order to solve because of this technical problem of the excessive and fragile linear motion valve of piston rod 2 movement travel, the basis of such scheme has been made following improvement: above-mentioned screw mandrel 1 is not connected to a place with one end of the piston rod 2 (being connected with the valve rod of linear motion valve for entirety is opened or the parts of throttle down) in Pneumatic actuator by luck connection set with one end of worm gear.The major function of this luck connection set is that screw mandrel 1 and piston rod 2 are fixed on a place; Meanwhile, the rotation of screw mandrel 1 and screw mandrel 1 and piston rod 2 can't be affected upwards or downward displacement simultaneously.Because what adopt is prior art herein, need not describe in detail at this.
The limit stoper 30 that one can limit its stroke that moves up and down is provided with at this end near above-mentioned piston rod 2.This limit stoper 30 comprises the support 31 of an open column shape, and this support 31 connects supporting base 11, under connect cylinder.Structure shape due to this support 31 is an open tubular column, so must have two ports.Be equipped with two ports can with the annular adjusting sleeve 32 of this support 31 screw-thread fit, piston rod 2 then penetrates this two adjusting sleeves 32 simultaneously, and on this support 31, also offered the window (not shown) being convenient to regulate adjusting sleeve 32 to rotate.Secondly, the piston rod 2 between two adjusting sleeves 32 is fixed with position-arresting disk 33.
The regulating method of said apparatus: first the adjusting sleeve 32 be positioned at below position-arresting disk 33 is screwed into maximum position by under window, namely this adjusting sleeve 32 can not be rotated down displacement again; Starting cylinder makes its piston rod 2 move downward, and be in the state of throttle down, now this adjusting sleeve 32 being circled round to can not again to the state of top offset again, and at this moment the downward range of piston rod 2 is determined complete.Secondly, the adjusting sleeve 32 be positioned at above position-arresting disk 33 is upwards screwed into maximum position by window, start cylinder and regain piston rod 2, valve is in open mode, at this moment maximum position is arrived in the convolution downwards of this adjusting sleeve 32, now piston rod 2 range is upwards determined complete, finally makes two adjusting sleeve 32 all fix on above-mentioned position.
But, in order to better slow down piston rod 2 movement velocity too high close or Open valve time impact force to valve, cushion pad 34 can also be provided with in above-mentioned adjusting sleeve 32.When position-arresting disk 33 is about to close to stop collar, cushion pad 34 first contacts this position-arresting disk 33, thus plays buffer function by the elastic strain of cushion pad 34 self.
Technique scheme, can use simultaneously, also can implement separately, can determine according to actual conditions.
The utility model is all be made up of the parts and components with simple and mechanical structure, no matter is in machining, or all has the advantages such as time saving and energy saving in assembling cooperation.And in maintaining process from now on, established superior basis for said apparatus, for enterprise saves cost of production.
Claims (3)
1. a straight stroke valve final controlling element, comprises COMM communication, it is characterized in that: COMM communication has a supporting base, has a switching chamber in the middle part of this supporting base; Run through with the screw mandrel of worm gear and switch chamber; A rectangular through-hole is offered in this switching chamber in the horizontal direction; Being provided with two in this rectangular through-hole can the half-nut of obvolvent screw mandrel, and the inner side of half-nut is equipped with the screw thread that can screw with screw mandrel; The outside of half-nut is provided with drive block, this drive block can pull or promote half-nut away from or near screw mandrel; Rotating cam is sleeved on the outer periphery switching chamber, and this rotating cam inwall is provided with archimedes spiral groove, and one end that drive block is not connected with half-nut is located in archimedes spiral groove by pin card.
2. straight stroke valve final controlling element as claimed in claim 1, is characterized in that: screw mandrel is not connected to a place with one end of the piston rod in one end of worm gear and Pneumatic actuator by connection set; This end near piston rod is provided with the limit stoper that can limit its stroke, and this limit stoper comprises an open column shape support, and this support is fixed between supporting base and cylinder; The two-port place of support is respectively equipped with annular adjusting sleeve, screw-thread fit between this adjusting sleeve and support, and support is provided with the window being convenient to regulate adjusting sleeve to rotate; Piston rod penetrates two adjusting sleeves all completely, and piston rod between two adjusting sleeves is fixed with position-arresting disk.
3. straight stroke valve final controlling element as claimed in claim 2, is characterized in that: adjusting sleeve is at least provided with a cushion pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420596300.6U CN204153293U (en) | 2014-10-15 | 2014-10-15 | A kind of straight stroke valve final controlling element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420596300.6U CN204153293U (en) | 2014-10-15 | 2014-10-15 | A kind of straight stroke valve final controlling element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204153293U true CN204153293U (en) | 2015-02-11 |
Family
ID=52511408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420596300.6U Expired - Fee Related CN204153293U (en) | 2014-10-15 | 2014-10-15 | A kind of straight stroke valve final controlling element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204153293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799024A (en) * | 2017-11-17 | 2019-05-24 | 上海汽车集团股份有限公司 | A kind of measuring device of variable lift camshaft switching power |
-
2014
- 2014-10-15 CN CN201420596300.6U patent/CN204153293U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799024A (en) * | 2017-11-17 | 2019-05-24 | 上海汽车集团股份有限公司 | A kind of measuring device of variable lift camshaft switching power |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104760053A (en) | Four claw clamping manipulator mechanism | |
| CN208451500U (en) | A kind of progressive knocking device of elastic conjunction | |
| CN203682989U (en) | Parallelogram horizontally-moving device | |
| CN109158249A (en) | A kind of gluing sealing device of Domestic glass | |
| CN108581428A (en) | A kind of special tube press machine of stage pipe fitting | |
| CN204153293U (en) | A kind of straight stroke valve final controlling element | |
| CN207064783U (en) | A kind of fork type angle stroke actuator | |
| CN106764008B (en) | Bidirectional self-sealing valve | |
| CN201922445U (en) | Manipulator chamfer angle component | |
| US4597729A (en) | Tire curing press and loader | |
| CN201859186U (en) | Testing machine for service life of partially rotary type valve electric actuator | |
| CN114749891B (en) | Piston structure integrally-assembling machining tool | |
| CN209818783U (en) | Opening and closing process sealing surface completely frictionless ball valve | |
| CN212887388U (en) | Disc spring compressor for plug valve maintenance | |
| CN112855931B (en) | Tank door opening device based on planetary roller screw | |
| CN202469043U (en) | Hydraulic self-operated double-gate plate gas gate valve | |
| CN107725967B (en) | The driving device of pipe detector | |
| CN203809714U (en) | Three-rod switch butterfly valve | |
| CN207888005U (en) | A kind of spiral oscillating motor screw pair flank of tooth abrasive working appts | |
| CN208450985U (en) | A kind of dedicated tube press machine of stage pipe fitting | |
| CN204942715U (en) | For the single-acting pneumatic actuator of valve | |
| CN219856111U (en) | Electric segmented mold driving device of tire vulcanizer | |
| CN220037509U (en) | Ball valve | |
| CN218717843U (en) | Electro-hydraulic direct-drive transmission device with guide mechanism | |
| CN204113359U (en) | Steam turbine admission modulating valve linkage mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 643000 No. 26 Jade Road, hi tech Industrial Park, Sichuan, Zigong Patentee after: SICHUAN VOLANT VALVE MANUFACTURING CO., LTD. Address before: 643000 No. 26 Jade Road, hi tech Industrial Park, Sichuan, Zigong Patentee before: Zigong Nuoko Actuator MFG. Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20201015 |