CN201180855Y - Manual fast and reinforcement operation device of high pressure break valve - Google Patents
Manual fast and reinforcement operation device of high pressure break valve Download PDFInfo
- Publication number
- CN201180855Y CN201180855Y CNU2008200530525U CN200820053052U CN201180855Y CN 201180855 Y CN201180855 Y CN 201180855Y CN U2008200530525 U CNU2008200530525 U CN U2008200530525U CN 200820053052 U CN200820053052 U CN 200820053052U CN 201180855 Y CN201180855 Y CN 201180855Y
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- CN
- China
- Prior art keywords
- ratchet
- screw
- worm gear
- screw mandrel
- screw rod
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- 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
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Abstract
The utility model relates to a quick manual and force increasing operation device of a high pressure check valve. The device comprises an operation mechanism consisting of a screw rod pair, an operation mechanism consisting of a worm gear pair, a braking mechanism, and a transmission box body. For the operation mechanism consisting of the screw rod pair, a screw rod is pivoted with a hand wheel which is used for quickly rotating the screw rod and conducting quick linear movement with a valve clack at the other end of the screw rod; for the operation mechanism consisting of the worm gear pair, a worm gear is pivoted with a hand wheel, a nut of the screw rod pair is embedded in the center of the worm wheel and used for rotating at a low speed, driving a valve clack at the other end of the screw rod to conducted linear movement at a low speed after force is increased; the braking mechanism consists of a ratchet and a pawl, the ratchet is arranged at one end of the screw rod, the screw rod and the nut are rotated at the same time through the braking of the pawl; a screw rod pair and a worm gear pair are arranged inside the box body, and the braking mechanism consisting of the ratchet and the pawl are arranged on the top of the box body. As a pure mechanical structure, the operation device has the advantages of simple structure, quickness and labor saving. Compared with other drive devices, the device works more stably and the production is safer.
Description
Technical field
The utility model relates to high pressure valve, refers in particular to a kind of high-pressure stop valve and manually reaches servo operation apparatus fast.
Background technique
The manually-operable of high-pressure large-caliber stop valve at present has two kinds of methods.A kind of method is directly to drive screw mandrel (or screw) rotation by handwheel, promote or promote flap valve is closed or opened, though the speed of this operating method operation is very fast, exist the sealing force that is applied on the flap and the contact surface of valve seat big inadequately, be easy to cause valve leak.Another kind method is to drive reducing gear by handwheel to drive screw mandrel (or screw) microinching, realize valve closing or unlatching, this operating method by deceleration, though flap can produce very big sealing force behind the contact valve seat, manual operation is (laborsaving) easily, but because the screw mandrel movement velocity after slowing down is slow, therefore cause the time of whole operation longer, working efficiency is lower.
Summary of the invention
The purpose of this utility model is improved at shortcoming that exists in the background technique and problem, provide a kind of laborsaving, high-pressure stop valve is manually fast and servo operation apparatus efficiently.
The technical solution of the utility model is a kind of device that comprises following structure of structure:
By the cover operating device that screw pair is formed, wherein screw mandrel articulates a handwheel, is used for the fast rotational screw mandrel and does gun with the flap that articulates the screw mandrel the other end;
By the cover operating device that worm gear pair is formed, wherein worm screw articulates a handwheel, and the worm gear center is embedded the screw in the screw pair, and the flap that be used to slow down rotation and drive are connected with the screw mandrel the other end is made the straight line motion at a slow speed behind the reinforcement;
By the arrestment mechanism that ratchet, ratchet are formed, wherein ratchet is located at an end of screw mandrel, changes together by using pawl to brake screw mandrel and screw;
One cover transmission case body wherein is provided with screw pair, worm gear pair, casing top the arrestment mechanism that ratchet, ratchet are formed is set in the casing.
Advantage of the present utility model and using effect:
The utility model is pure mechanical structure, and is simple to operate, quick, laborsaving, do not exist Vidacare corp to need power and control system like that, do not need accurately to adjust and safeguard yet, do not exist operation malfunctioning and out of control, other drive unit relatively, the work of this device is more reliable, production is safer.
Description of drawings
Fig. 1 is the utility model appearance assumption diagram
Fig. 2 is Fig. 1 sectional drawing
Fig. 3 is the arrestment mechanism structural drawing
Fig. 4 is worm gear pair mechanism structure figure
Embodiment
By Fig. 1 to 4 as can be known, the utility model comprises:
By the cover operating device that screw pair is formed, wherein screw mandrel articulates a handwheel 1, is used for fast rotational screw mandrel 2 and does gun with the flap that articulates the screw mandrel the other end;
By the cover operating device that worm gear pair is formed, wherein worm screw 15 articulates a handwheel 9, and worm gear 13 centers are embedded the screw 18 in the screw pair, and the flap that be used to slow down rotation and drive are connected with the screw mandrel the other end is made the straight line motion at a slow speed behind the reinforcement;
By the arrestment mechanism that ratchet 20, ratchet 3 are formed, wherein ratchet 20 is located at an end of screw mandrel 2, changes together with screw 18 by ratchet 3 braking screw mandrels 2, prevents that screw mandrel and flap from skidding;
One cover transmission case body 6 wherein is provided with screw pair, worm gear pair, casing 6 tops the arrestment mechanism that ratchet 20, ratchet 3 are formed is set in the casing 6.
Screw mandrel 2 in the screw pair described in the utility model is arranged on one section of axis body bottom, and the top of axle is the splined shaft of one section pivot joint ratchet 20, and the screw 18 that meshes with screw mandrel 2 is fixed in the casing 6 by worm gear 13.Described worm screw 15 is arranged on a side of casing 6, and the end of worm screw 15 is fixing by bearing 24 and bearing support 25, and the end is provided with nut 23 and bearing cap 22, and the other end is provided with bearing 14, and the end is provided with blind flange 10.Described worm gear 13 is located at the bottom of casing 6 by packing ring 11 and thrust-bearing 12, and worm gear 13 opposite sides are by packing ring 17 and thrust-bearing 16, and Box Cover 5 is fixed on worm gear 13 in the casing 6.The screw 18 that described worm gear 13 centers are embedded is fixing by a key 26.Circle is spline tooths in the described ratchet 20, is slidingly matched with the spline segment on screw mandrel axis body top.The described arrestment mechanism of being made up of ratchet 20, ratchet 3 comprises pawl seat 4, pawl seat cover plate 21 and bearing pin 19, wherein pawl seat 4 is fixed on the Box Cover 5, ratchet 20 is fixed on casing 6 tops by pawl seat cover plate 21, and ratchet 3 is fixed on a side between pawl seat and the ratchet cover plate by bearing pin 19.
Working principle of the present utility model: this device has independently operation system of two covers, wherein the effect of a cover is to operate relatively fast, utilize handwheel 1 direct transmission, handle screw mandrel and do gun by the worm gear screw, another set of effect is a reinforcement, use handwheel 9 transmission worm screws, drive worm gear screw deceleration rotation, handle screw mandrel and make straight line motion at a slow speed, (drawing) power that pushes away of screw mandrel will be amplified and reinforcement in the ratio of slowing down. and in addition, two cover systems can also be operated simultaneously and produce synthetic (differential) motion.In order to prevent reinforcement when operation, screw mandrel is with screw interlock rotation, screw mandrel idle running occurs and the skidding of not advancing, and operator can handle the operating grip of uni-directional brake at any time, uni-directional brake pulled to brake on the non-slip direction of screw mandrel, prevent that with fork-like farm tool used in ancient China screw mandrel from skidding.Because uni-directional brake can be braked two of screw mandrel and turns to, therefore when hand wheel, also need uni-directional brake is adjusted to appropriate orientation (braking forward and backward and do not control etc. three) by reversing handle, to adapt to the screw mandrel sense of rotation.The one man operation, during throttle down, because the flap end also has a segment distance from valve seat, exactly in this segment distance, only moving of flap need overcome the medium effect resistance of valve rod and the surface friction drag of Sealing, and these two resistance sums are less relatively, the power that the direct drive lead screw promotion of hand wheel flap moves is just little, manual operation is light relatively, and the speed that the while screw mandrel advances is also very fast relatively, plays quick operating effect.After flap touches valve seat, need the effect that bigger specific pressure just can reach sealing on both contact seal faces, the sealing force summation of this high specific pressure is very big, have up to tens of ton forces.At this moment alter operation handwheel at once makes the screw mandrel reinforcement after slowing down by reducing gear, and it is pressed on the flap and throttle down firmly.Like this, convert bigger sealing force with regard to having realized to less manpower, manual operation is light, and the operating time is also extremely short very short because of screw mandrel stroke at this moment.The one man operation, when opening valve, artificial mode of operation is opposite with closing motion, elder generation's reverse operating handwheel 9, adopt the loosening flap of way of reinforcement, just earlier overcome static friction torque bigger on screw mandrel and the screw, after having become flexible flap with less artificial torsion, the reversible control handwheel 1 again, fast lifting flap and realize that the quick whole process of valve opens.
Embodiment described in the utility model only is the description that preferred implementation of the present utility model is carried out; be not that the utility model design and scope are limited; do not breaking away under the preceding topic of the utility model design philosophy; engineers and technicians make the technical solution of the utility model in related domain various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (7)
1, a kind of high-pressure stop valve manually reaches servo operation apparatus fast, it is characterized in that comprising:
By the cover operating device that screw pair is formed, wherein screw mandrel articulates a handwheel (1), is used for fast rotational screw mandrel (2) and does gun with the flap that articulates the screw mandrel the other end;
By the cover operating device that worm gear pair is formed, wherein worm screw (15) articulates a handwheel (9), and worm gear (13) center is embedded the screw (18) in the screw pair, and the flap that be used to slow down rotation and drive are connected with the screw mandrel the other end is made the straight line motion at a slow speed behind the reinforcement;
By the arrestment mechanism that ratchet (20), ratchet (3) are formed, wherein ratchet (20) is located at an end of screw mandrel (2), changes together by ratchet (3) braking screw mandrel (2) and screw (18);
One cover transmission case body (6) wherein is provided with screw pair, worm gear pair, casing (6) top the arrestment mechanism that ratchet (20), ratchet (3) are formed is set in the casing (6).
2, high-pressure stop valve according to claim 1 manually reaches servo operation apparatus fast, it is characterized in that the screw mandrel (2) in the described screw pair is arranged on one section of axis body bottom, the top of axle is the splined shaft of one section pivot joint ratchet (20), and the screw (18) that meshes with screw mandrel (2) is fixed in the casing (6) by worm gear (13).
3, high-pressure stop valve according to claim 1 manually reaches servo operation apparatus fast, it is characterized in that described worm screw (15) is arranged on a side of casing (6), the end of worm screw (15) is fixing by bearing (24) and bearing support (25), the end is provided with nut (23) and bearing cap (22), the other end is provided with bearing (14), and the end is provided with blind flange (10).
4, high-pressure stop valve according to claim 1 manually reaches servo operation apparatus fast, it is characterized in that described worm gear (13) is located at the bottom of casing (6) by packing ring (11) and thrust-bearing (12), worm gear (13) opposite side is by packing ring (17) and thrust-bearing (16), and Box Cover (5) is fixed on worm gear (13) in the casing (6).
5, high-pressure stop valve according to claim 1 manually fast and servo operation apparatus is characterized in that the screw (18) that described worm gear (13) center is embedded is fixing by a key (26).
6, high-pressure stop valve according to claim 1 manually fast and servo operation apparatus is characterized in that circle is spline tooth in the described ratchet (20), is slidingly matched with the spline segment on screw mandrel axis body top.
7, high-pressure stop valve according to claim 1 manually reaches servo operation apparatus fast, it is characterized in that the described arrestment mechanism of being made up of ratchet (20), ratchet (3) comprises pawl seat (4), pawl seat cover plate (21) and bearing pin (19), wherein pawl seat (4) is fixed on the Box Cover (5), ratchet (20) is fixed on casing (6) top by pawl seat cover plate (21), and ratchet (3) is fixed on a side between pawl seat and the ratchet cover plate by bearing pin (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200530525U CN201180855Y (en) | 2008-04-29 | 2008-04-29 | Manual fast and reinforcement operation device of high pressure break valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200530525U CN201180855Y (en) | 2008-04-29 | 2008-04-29 | Manual fast and reinforcement operation device of high pressure break valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180855Y true CN201180855Y (en) | 2009-01-14 |
Family
ID=40250355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200530525U Expired - Fee Related CN201180855Y (en) | 2008-04-29 | 2008-04-29 | Manual fast and reinforcement operation device of high pressure break valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180855Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506214A (en) * | 2011-11-23 | 2012-06-20 | 威森流体控制股份有限公司 | Directly linked straight-travel electric actuating mechanism |
| CN103671950A (en) * | 2013-12-31 | 2014-03-26 | 中国船舶重工集团公司第七�三研究所 | Valve rod downward quick-acting mechanism of valve |
| CN105805399A (en) * | 2016-05-18 | 2016-07-27 | 四川大学 | Valve opening and closing assisting device |
-
2008
- 2008-04-29 CN CNU2008200530525U patent/CN201180855Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506214A (en) * | 2011-11-23 | 2012-06-20 | 威森流体控制股份有限公司 | Directly linked straight-travel electric actuating mechanism |
| CN103671950A (en) * | 2013-12-31 | 2014-03-26 | 中国船舶重工集团公司第七�三研究所 | Valve rod downward quick-acting mechanism of valve |
| CN105805399A (en) * | 2016-05-18 | 2016-07-27 | 四川大学 | Valve opening and closing assisting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20160429 |