CN203348695U - Rapid cut-off valve actuator - Google Patents
Rapid cut-off valve actuator Download PDFInfo
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- CN203348695U CN203348695U CN 201320385434 CN201320385434U CN203348695U CN 203348695 U CN203348695 U CN 203348695U CN 201320385434 CN201320385434 CN 201320385434 CN 201320385434 U CN201320385434 U CN 201320385434U CN 203348695 U CN203348695 U CN 203348695U
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Abstract
The utility model belongs to the field of valve controllers, and relates to a rapid cut-off valve actuator. According to the rapid cut-off valve actuator, a single spring in an air cylinder is replaced by four springs, the four springs are connected in series and in parallel respectively, compression amount of the springs is reduced by half, rigidity of the springs is enhanced, stability of the springs is improved and the service life of the springs is prolonged. A limiting bolt and a limiting bolt sleeve are arranged in a spring cylinder so as to enable the axial motion of a piston rod to be more stable. An adjusting screw is arranged on the end portion of the piston rod in an oil cylinder body, and the function of adjusting the buffering angle and adjusting the executer off position is achieved. A plurality of one-way throttle valves are arranged in a hydraulic control device, the one-way throttle valves are used for adjusting the speed of starting and shutting of the actuator and the buffering speed, and therefore the functions of protecting the actuator flexibly and shutting the actuator rapidly in a needed working condition are achieved.
Description
Technical field
The utility model belongs to the valve positioner field, relates to a kind of fast shut-off valve actuator.
Background technique
Valve actuator is a kind of device of the open and close for control valve.When the machine operation is broken down, the quick closedown of valve actuator is the key that guarantees that machine does not damage.The spring cylinder of the valve actuator of current domestic use is used single spring mostly, and because single spring is excessive and stroke is long in shape, the stability of operation is bad, and also be greatly affected working life; Valve actuator is easy wear and aging in running, and for the life-span of improving valve guarantees its reliability, the machine breakdown of avoiding valve actuator can't work and bring, take effective impact mitigation measure to be absolutely necessary.
Summary of the invention
The utility model is in order to make up the deficiencies in the prior art, and a kind of simple in structure, safe and reliable, fast shut-off valve actuator with good pooling feature is provided.
The utility model is by the following technical solutions: the fast shut-off valve actuator, comprise spring cylinder, oil cylinder and final controlling element, spring cylinder, final controlling element, oil cylinder connects setting successively, it is characterized in that: spring cylinder includes first piston and cluster spring, oil cylinder includes the second piston, final controlling element includes rocking arm, first piston and the second piston interconnect setting by a piston rod, rocking arm is connected to the middle part of piston rod and links with piston rod, rocking arm connects valve, during oil cylinder oil inlet, the second piston is pushed, it is movable in spring cylinder that piston rod drives first piston, drive the rocking arm activity simultaneously and open valve, cluster spring is compressed, during the oil cylinder draining, first piston and the second piston be reverse activity in spring cylinder and oil cylinder respectively, and piston rod drives rocking arm reverse activity throttle down.
As a kind of improvement, spring cylinder also includes the spring cylinder body, guide plate and spring cylinder end cap, cluster spring comprises the first outer spring, the second outer spring, the first inner spring and the second inner spring, one end of the first outer spring and the first inner spring is arranged on the spring cylinder end cap of spring cylinder body away from final controlling element, the first inner spring is set in the first outer spring, the other end of the first outer spring and the first inner spring arranges guide plate, the another side of guide plate arranges the second outer spring and the second inner spring, the second inner spring is set in the second outer spring, the second outer spring is connected first piston with the other end of the relative guide plate of the second inner spring.
As a kind of improvement, spring cylinder also includes caging bolt and caging bolt cover, and caging bolt is arranged on the spring cylinder end cap, and caging bolt is set on first piston, and the caging bolt cover is set in the caging bolt outside and aligns and coordinate with caging bolt.
As a kind of improvement, oil cylinder also includes cylinder body, cylinder cover, adjustment screw and hydraulic control unit, cylinder cover is arranged on the end of cylinder body away from final controlling element, and hydraulic control unit is arranged on cylinder cover, adjusts the end that screw is arranged on piston rod in cylinder body.
As a kind of improvement, hydraulic control unit comprises filler opening, return opening, reduction valve, Pilot operated check valve, the first quick closing valve solenoid valve, the second quick closing valve solenoid valve, the first one-way throttle valve, the second one-way throttle valve, pressure transmitter, the first cartridge valve, the second cartridge valve, slowly change down the pass solenoid valve, the 3rd one-way throttle valve, the 4th one-way throttle valve, the 5th one-way throttle valve, solenoid valve moves about, the first oil cylinder return tube, the second oil cylinder return tube and emergency overspeed governor, filler opening connects the input end of reduction valve, and the output terminal of reduction valve connects respectively Pilot operated check valve, the first quick closing valve solenoid valve, the input end of the second quick closing valve solenoid valve, the output terminal connection of Pilot operated check valve changes down the pass solenoid valve slowly, slowly change down the pass solenoid valve and connect respectively return opening and the 3rd throttle valve, the 3rd one-way throttle valve connects the 4th one-way throttle valve, the 4th one-way throttle valve connects the 5th one-way throttle valve, the 5th one-way throttle valve connects oil cylinder, connects respectively the solenoid valve that moves about on oil cylinder, the first oil cylinder return tube, the second oil cylinder return tube, the output terminal of the first quick closing valve solenoid valve connects respectively the first cartridge valve, the second cartridge valve and Pilot operated check valve, the output terminal of the second quick closing valve solenoid valve connects respectively the first cartridge valve, the second cartridge valve and Pilot operated check valve, the output terminal of the first cartridge valve and the second cartridge valve is connected respectively the 5th one-way throttle valve, the first quick closing valve solenoid valve and the second quick closing valve solenoid valve are connected to Bonding pressure transmitter and emergency overspeed governor between the circuit of the first cartridge valve and the second cartridge valve, and pressure transmitter and emergency overspeed governor interconnect.
The beneficial effects of the utility model: original single spring is replaced with four springs, four springs divide size two kinds of specifications, small one and large one is coaxially sheathed, again by sheathed good spring series connection, spring is in the situation that play original function length and reduce by half, rigidity reinforced, stability and working life are improved; The design of caging bolt and caging bolt cover makes the axial motion of piston rod more stable; In cylinder body, the end of piston rod arranges the adjustment screw, reaches the effect of adjusting bumper angle and adjusting the final controlling element off-position; A plurality of one-way throttle valves are set in hydraulic control unit, utilize speed and the buffer speed of the opening and closing of one-way throttle valve capable of regulating final controlling element, thereby play flexible protection final controlling element, the effect of quick closedown when operating mode needs.
The accompanying drawing explanation
Fig. 1 is the sectional drawing of the utility model fast shut-off valve actuator.
Fig. 2 is the structural representation of the hydraulic control unit of the utility model fast shut-off valve actuator.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
As shown in Figure 1, 2, be the specific embodiment of the utility model fast shut-off valve actuator.This embodiment comprises spring cylinder 1, oil cylinder 2 and final controlling element 3, spring cylinder 1, final controlling element 3, oil cylinder 2 connects setting successively, spring cylinder 1 includes first piston 11 and cluster spring 12, oil cylinder 2 includes the second piston 21, final controlling element 3 includes rocking arm 31, first piston 11 and the second piston 21 interconnect setting by a piston rod 4, rocking arm 31 is connected to the middle part of piston rod 4 and links with piston rod 4, rocking arm 31 connects valve, during oil cylinder 2 oil-feed, the second piston 21 is pushed, it is movable in spring cylinder 1 that piston rod 4 drives first piston 11, drive rocking arm 31 activities simultaneously and open valve, cluster spring 12 is compressed, during oil cylinder 2 draining, first piston 11 and the second piston 21 be reverse activity in spring cylinder 1 and oil cylinder 2 respectively, and piston rod 4 drives rocking arm 31 reverse activity throttle downs.
As a kind of improved embodiment, spring cylinder 1 also includes spring cylinder body 13, guide plate 14 and spring cylinder end cap 15, cluster spring 12 comprises the first outer spring 121, the second outer spring 122, the first inner spring 123 and the second inner spring 124, one end of the first outer spring 121 and the first inner spring 123 is arranged on the spring cylinder end cap 15 of spring cylinder body 13 away from final controlling element 3, the first inner spring 123 is set in the first outer spring 121, the other end of the first outer spring 121 and the first inner spring 123 arranges guide plate 14, the another side of guide plate 14 arranges the second outer spring 122 and the second inner spring 124, the second inner spring 124 is set in the second outer spring 122, described the second outer spring 122 is connected first piston 11 with the other end of the second inner spring 124 relative guide plates 14.Original single spring is replaced with four springs, four springs divide size two kinds of specifications, the combination of employing series and parallel connections, the first outer spring 121 and the first inner spring 123 are coaxially sheathed, the second outer spring 122 and the second inner spring 124 are coaxially sheathed, then by sheathed good spring by 14 series connection of middle guide plate, spring is in the situation that play original function length and reduce by half, rigidity reinforced, stability and working life are improved.
As a kind of improved embodiment, spring cylinder 1 also includes caging bolt 16 and caging bolt cover 17, caging bolt 16 is arranged on spring cylinder end cap 15, caging bolt cover 17 is arranged on first piston 11, and caging bolt cover 17 is set in caging bolt 16 outsides and aligns and coordinate with caging bolt 16.The movement velocity of piston rod 4 is fast and stroke is long, and the design of caging bolt 16 and caging bolt cover 17 makes the axial motion of piston rod 4 more stable, reduces wear.
As a kind of improved embodiment, oil cylinder 2 also includes cylinder body 22, cylinder cover 23, adjusts screw 24 and hydraulic control unit 25, cylinder cover 23 is arranged on the end of cylinder body 22 away from final controlling element 3, hydraulic control unit 25 is arranged on cylinder cover 23, adjusts the end that screw 24 is arranged on piston rod 4 in cylinder body 22.In cylinder body 22, the end of piston rod 4 arranges and adjusts screw 24, reaches the effect of adjusting bumper angle and adjusting final controlling element 3 off-positions; Hydraulic control unit 25 is adjusted final controlling element 3 opening and closing, thereby plays the purpose of flexible adjustment and protection final controlling element.
As a kind of improved embodiment, hydraulic control unit 25 comprises filler opening 5a, return opening 5b, reduction valve 5c, Pilot operated check valve 5d, the first quick closing valve solenoid valve 5e, the second quick closing valve solenoid valve 5f, the first one-way throttle valve 5g, the second one-way throttle valve 5h, pressure transmitter 5i, the first cartridge valve 5j, the second cartridge valve 5k, slowly change down and close solenoid valve 5l, the 3rd one-way throttle valve 5m, the 4th one-way throttle valve 5n, the 5th one-way throttle valve 5o, solenoid valve 5p moves about, the first oil cylinder return tube 5q, the second oil cylinder return tube 5r and emergency overspeed governor 5s, filler opening 5a connects the input end of reduction valve 5c, and the output terminal of reduction valve 5c connects respectively Pilot operated check valve 5d, the first quick closing valve solenoid valve 5e, the input end of the second quick closing valve solenoid valve 5f, the output terminal connection of Pilot operated check valve 5d changes down slowly closes solenoid valve 5l, slowly change down pass solenoid valve 5l and connect respectively return opening 5b and the 3rd throttle valve 5m, the 3rd one-way throttle valve 5m connects the 4th one-way throttle valve 5n, the 4th one-way throttle valve 5n connects the 5th one-way throttle valve 5o, the 5th one-way throttle valve 5o connects oil cylinder 2, connects respectively the solenoid valve 5p that moves about on oil cylinder 2, the first oil cylinder return tube 5q, the second oil cylinder return tube 5r, the output terminal of the first quick closing valve solenoid valve 5e connects respectively the first cartridge valve 5j, the second cartridge valve 5k and Pilot operated check valve 5d, the output terminal of the second quick closing valve solenoid valve 5f connects respectively the first cartridge valve 5j, the second cartridge valve 5k and Pilot operated check valve 5d, the output terminal of the first cartridge valve 5j and the second cartridge valve 5k is connected respectively the 5th one-way throttle valve 5o, the first quick closing valve solenoid valve 5e and the second quick closing valve solenoid valve 5f are connected to Bonding pressure transmitter 5i and emergency overspeed governor 5s between the circuit of the first cartridge valve 5j and the second cartridge valve 5k, and pressure transmitter 5i and emergency overspeed governor 5s interconnect.
Enter reduction valve 5c reduction oil pressure from filler opening 5a when oil, oil enters the first quick closing valve solenoid valve 5e and the second quick closing valve solenoid valve 5f through branch road, and the electromagnet in the first quick closing valve solenoid valve 5e and the second quick closing valve solenoid valve 5f obtains electric; Oil is through the first quick closing valve solenoid valve 5e and the first one-way throttle valve 5g adjust flux size, through the second quick closing valve solenoid valve 5f and the second one-way throttle valve 5h adjust flux size, be divided into afterwards two-way, Pilot operated check valve 5d is opened on one tunnel, another road enters the first cartridge valve 5j and the second cartridge valve 5k, the first cartridge valve 5j and the second cartridge valve 5k close, and the function of quick closedown is closed.
After Pilot operated check valve 5d opens, slowly changing down the electromagnet closed in solenoid valve 5l obtains electric, oil enters oil cylinder 2 through the 3rd one-way throttle valve 5m, the 4th one-way throttle valve 5n, the 5th one-way throttle valve 5o successively, oil promotes the second piston 21, the second piston 21 drives piston rod 4 motions, the rocking arm 31 motion opening executers 3 on piston rod 4; First piston 11 motions simultaneously, the spring in spring cylinder 1 is compressed.
When operating mode needs closing machine, change down slowly and close solenoid valve 5l reaction, in-line is cut off, and under the pressure of spring cylinder 1 medi-spring, first piston 11 is pushed back, and final controlling element 3 is closed in rocking arm 31 reversing motions that drive on piston rod 4.
The speed adjustment of final controlling element 3 opening and closing valves realizes by the first one-way throttle valve 5g, the second one-way throttle valve 5h and the 5th one-way throttle valve 5o, specifically the first one-way throttle valve 5g controls the speed that final controlling element 3 is opened, the second one-way throttle valve 5h controls the speed that final controlling element 3 is closed, buffer speed when the 5th one-way throttle valve 5o control final controlling element 3 is closed.
When operating mode needs the quick closedown machine, electromagnet dead electricity in the first quick closing valve solenoid valve 5e and the second quick closing valve solenoid valve 5f, now Pilot operated check valve 5d, the first cartridge valve 5j, the rapid draining of the second cartridge valve 5k, under spring action, first piston 11 is pushed back rapidly, the rapid reverse activity quick closedown final controlling element 3 of rocking arm 31 on piston rod 4.
Claims (5)
1. fast shut-off valve actuator, comprise spring cylinder (1), oil cylinder (2) and final controlling element (3), described spring cylinder (1), final controlling element (3), oil cylinder (2) connects setting successively, it is characterized in that: described spring cylinder (1) includes first piston (11) and cluster spring (12), described oil cylinder (2) includes the second piston (21), described final controlling element (3) includes rocking arm (31), described first piston (11) and the second piston (21) interconnect setting by a piston rod (4), described rocking arm (31) is connected to the middle part of piston rod (4) and links with piston rod (4), described rocking arm (31) connects valve, during described oil cylinder (2) oil-feed, the second piston (21) is pushed, it is movable in spring cylinder (1) that piston rod (4) drives first piston (11), drive rocking arm (31) activity simultaneously and open valve, cluster spring (12) is compressed, during described oil cylinder (2) draining, first piston (11) and the second piston (21) be reverse activity in spring cylinder (1) and oil cylinder (2) respectively, and piston rod (4) drives rocking arm (31) reverse activity throttle down.
2. fast shut-off valve actuator according to claim 1, it is characterized in that described spring cylinder (1) also includes spring cylinder body (13), guide plate (14) and spring cylinder end cap (15), described cluster spring (12) comprises the first outer spring (121), the second outer spring (122), the first inner spring (123) and the second inner spring (124), one end of described the first outer spring (121) and the first inner spring (123) is arranged on the spring cylinder end cap (15) of spring cylinder body (13) away from final controlling element (3), the first inner spring (123) is set in the first outer spring (121), the other end of described the first outer spring (121) and the first inner spring (123) arranges guide plate (14), the another side of described guide plate (14) arranges the second outer spring (122) and the second inner spring (124), described the second inner spring (124) is set in the second outer spring (122), described the second outer spring (122) is connected first piston (11) with the other end of the relative guide plate (14) of the second inner spring (124).
3. fast shut-off valve actuator according to claim 2, it is characterized in that described spring cylinder (1) also includes caging bolt (16) and caging bolt cover (17), described caging bolt (16) is arranged on spring cylinder end cap (15), it is upper that described caging bolt cover (17) is arranged on first piston (11), and described caging bolt cover (17) is set in caging bolt (16) outside and aligns and coordinate with caging bolt (16).
4. according to claim 1 or 2 or 3 described fast shut-off valve actuators, it is characterized in that described oil cylinder (2) also includes cylinder body (22), cylinder cover (23), adjusts screw (24) and hydraulic control unit (25), described cylinder cover (23) is arranged on the end of cylinder body (22) away from final controlling element (3), it is upper that described hydraulic control unit (25) is arranged on cylinder cover (23), and described adjustment screw (24) is arranged on the end of piston rod (4) in cylinder body (22).
5. fast shut-off valve actuator according to claim 4, is characterized in that described hydraulic control unit (25) comprises filler opening (5a), return opening (5b), reduction valve (5c), Pilot operated check valve (5d), the first quick closing valve solenoid valve (5e), the second quick closing valve solenoid valve (5f), the first one-way throttle valve (5g), the second one-way throttle valve (5h), pressure transmitter (5i), the first cartridge valve (5j), the second cartridge valve (5k), slowly change down and close solenoid valve (5l), the 3rd one-way throttle valve (5m), the 4th one-way throttle valve (5n), the 5th one-way throttle valve (5o), solenoid valve (5p) moves about, the first oil cylinder return tube (5q), the second oil cylinder return tube (5r) and emergency overspeed governor (5s), described filler opening (5a) connects the input end of reduction valve (5c), and the output terminal of reduction valve (5c) connects respectively Pilot operated check valve (5d), the first quick closing valve solenoid valve (5e), the input end of the second quick closing valve solenoid valve (5f), the output terminal connection of described Pilot operated check valve (5d) changes down slowly closes solenoid valve (5l), slowly change down pass solenoid valve (5l) and connect respectively return opening (5b) and the 3rd throttle valve (5m), described the 3rd one-way throttle valve (5m) connects the 4th one-way throttle valve (5n), the 4th one-way throttle valve (5n) connects the 5th one-way throttle valve (5o), the 5th one-way throttle valve (5o) connects oil cylinder (2), connects respectively the solenoid valve (5p) that moves about on described oil cylinder (2), the first oil cylinder return tube (5q), the second oil cylinder return tube (5r), the output terminal of described the first quick closing valve solenoid valve (5e) connects respectively the first cartridge valve (5j), the second cartridge valve (5k) and Pilot operated check valve (5d), the output terminal of described the second quick closing valve solenoid valve (5f) connects respectively the first cartridge valve (5j), the second cartridge valve (5k) and Pilot operated check valve (5d), the output terminal of described the first cartridge valve (5j) and the second cartridge valve (5k) is connected respectively the 5th one-way throttle valve (5o), described the first quick closing valve solenoid valve (5e) and the second quick closing valve solenoid valve (5f) are connected to Bonding pressure transmitter (5i) and emergency overspeed governor (5s) between the circuit of the first cartridge valve (5j) and the second cartridge valve (5k), and pressure transmitter (5i) and emergency overspeed governor (5s) interconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320385434 CN203348695U (en) | 2013-07-01 | 2013-07-01 | Rapid cut-off valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320385434 CN203348695U (en) | 2013-07-01 | 2013-07-01 | Rapid cut-off valve actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203348695U true CN203348695U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320385434 Expired - Lifetime CN203348695U (en) | 2013-07-01 | 2013-07-01 | Rapid cut-off valve actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203348695U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387786A (en) * | 2017-03-02 | 2017-11-24 | 成都凯远流体控制工程有限公司 | Have the multi-functional pressure/flow control valve and its operating method of good sealing property concurrently |
| WO2018036496A1 (en) * | 2016-08-25 | 2018-03-01 | 成都迈可森流体控制设备有限公司 | Valve actuator based on gas-fluid composite spring |
| CN109442086A (en) * | 2018-12-11 | 2019-03-08 | 中国船舶重工集团公司第七〇九研究所 | A kind of underwater ball valve executing agency based on both arms shift fork and Worm Wheel System |
-
2013
- 2013-07-01 CN CN 201320385434 patent/CN203348695U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018036496A1 (en) * | 2016-08-25 | 2018-03-01 | 成都迈可森流体控制设备有限公司 | Valve actuator based on gas-fluid composite spring |
| CN107387786A (en) * | 2017-03-02 | 2017-11-24 | 成都凯远流体控制工程有限公司 | Have the multi-functional pressure/flow control valve and its operating method of good sealing property concurrently |
| CN109442086A (en) * | 2018-12-11 | 2019-03-08 | 中国船舶重工集团公司第七〇九研究所 | A kind of underwater ball valve executing agency based on both arms shift fork and Worm Wheel System |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |