CN103115028A - Electro-hydraulic servo actuator - Google Patents
Electro-hydraulic servo actuator Download PDFInfo
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- CN103115028A CN103115028A CN2013100772036A CN201310077203A CN103115028A CN 103115028 A CN103115028 A CN 103115028A CN 2013100772036 A CN2013100772036 A CN 2013100772036A CN 201310077203 A CN201310077203 A CN 201310077203A CN 103115028 A CN103115028 A CN 103115028A
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Abstract
The invention discloses an electro-hydraulic servo actuator. The electro-hydraulic servo actuator comprises an oil tank (1), an electric motor (2), a hydraulic pump (3), two filters, an overflow valve (6), a servo valve (7), a hydraulic cylinder (12), a pressure relay (15), an energy accumulator (17), a pressure gage (24), two hydraulic locks, three one-way valves, three safety valves, a two-position three-way magnetic valve (11), a two-position four-way magnetic valve (19), a three-position four-way manual directional valve (23),a manual pump (21) and a manual stop valve (16). The electro-hydraulic servo actuator adopts modular design, and the hydraulic cylinder (12) and an actuator host can be installed in a separation mode. The actuator utilizes the servo valve (7) to regulate a controlled object, and the hydraulic pump (3) and the energy accumulator (17) provide pressure oil for the servo valve (7) together. The electro-hydraulic servo actuator has the advantages that energy is saved, efficiency is high, response speed is fast, and failure self-protection function is possessed.
Description
Technical field
The present invention relates to a kind of electro-hydraulic actuator, particularly a kind of electro-hydraulic servo actuator.
Background technique
At present, traditional electro-hydraulic servo actuator mainly is comprised of motor, oil hydraulic pump, one-way valve, pressure relay, pressure gauge, filter, accumulator, servovalve, Double throttle check valve, oil hydraulic cylinder, relief valve and fuel tank etc., adopt open-circuit hydraulic system, by controlling servovalve regulator solution force feed flow direction and uninterrupted, drive controlled device with linear displacement (or angular displacement) ouput force (or moment).On market, this final controlling element working method is single, and energy consumption is large, efficient is low, can not realize the fault self-protections such as outage.
Summary of the invention
The object of the invention is to provide a kind of electro-hydraulic servo actuator, has solved that traditional electrical hydraulic actuator working method is single, energy consumption is large, efficient is low, can not realize the problem of fault self-protection.
A kind of electro-hydraulic servo actuator, comprise: fuel tank, motor, oil hydraulic pump, relief valve, servovalve, oil hydraulic cylinder, pressure relay, accumulator, pressure gauge also comprise: filter A, filter B, hydraulic lock A, hydraulic lock B, one-way valve A, one-way valve B, one-way valve C, safety valve A, safety valve B, safety valve C, two-bit triplet solenoid valve, two position four-way solenoid valves, 3-position 4-way hand-operated direction valve, hand pump, hand stop valve.the oil hydraulic pump import is connected with filter A export pipeline, the oil hydraulic pump outlet is connected with the relief valve inlet ductwork with the filter B import respectively, one-way valve A import is connected with the filter B export pipeline, one-way valve A outlet respectively with servovalve import c, two-bit triplet solenoid valve import c pipeline connects, the import of hydraulic lock A is connected with the outlet a pipeline of servovalve, the outlet of hydraulic lock A is connected with the inlet ductwork of oil hydraulic cylinder, the import of hydraulic lock B is connected with the outlet b pipeline of servovalve, the outlet of hydraulic lock B is connected with the export pipeline of oil hydraulic cylinder, hydraulic lock A is connected the control mouth and all is connected with the outlet a pipeline of two-bit triplet solenoid valve with hydraulic lock B, the accumulator entrance is connected with the pressure gauge entrance pipe with the hand stop valve outlet respectively, the hand stop valve outlet is connected with safety valve C inlet ductwork, the hand stop valve import respectively with one-way valve A outlet with are connected position four-way solenoid valve import a pipeline and are connected, two position four-way solenoid valve outlet b are connected with one-way valve B inlet ductwork, 3-position 4-way hand-operated direction valve import c is connected with one-way valve C export pipeline with one-way valve B outlet respectively, 3-position 4-way hand-operated direction valve import d is connected with two position four-way solenoid valve outlet d pipelines, 3-position 4-way manual reverse of direction valve outlet port a is connected with the inlet ductwork of oil hydraulic cylinder, 3-position 4-way manual reverse of direction valve outlet port b is connected with the export pipeline of oil hydraulic cylinder, the hand pump outlet is connected with one-way valve C inlet ductwork, safety valve A import is connected with the oil hydraulic cylinder inlet ductwork, safety valve B import is connected with the oil hydraulic cylinder export pipeline, filter A import, the relief valve outlet, servovalve outlet d, two-bit triplet electromagnetic valve oil return mouth b, safety valve A outlet, safety valve B outlet, safety valve C outlet, two position four-way solenoid valve return opening c, the hand pump import all is connected with the fuel tank pipeline.
Electro-hydraulic servo actuator adopts modular design, and oil hydraulic cylinder separates installation with the final controlling element main frame.When final controlling element uses servovalve fine adjustment controlled device, jointly supply with pressure oil to servovalve by oil hydraulic pump and accumulator, when the accumulator oil pressure reaches the capping value of pressure relay, motor and oil hydraulic pump shut down, keep the work of final controlling element by the pressure oil of accumulator storage, in case when in accumulator, oil pressure dropped to the pressure relay lower limit, motor started automatically, drive oil hydraulic pump and replenish high pressure oil to accumulator; After system regulated and puts in place, if there is instruction can make the outage of two-bit triplet solenoid valve, hydraulic lock A, hydraulic lock B when using the servovalve accuracy controlling, must make the two-bit triplet solenoid valve be in "on" position the locking of oil hydraulic cylinder original position; When power supply, signal or hydraulic system break down, two position four-way solenoid valve auto-breaking commutations, the pressure oil of accumulator output is realized the locking of oil hydraulic cylinder original position or moves to two ends through the 3-position 4-way hand-operated direction valve; Under normal operation, by two position four-way solenoid valves and 3-position 4-way hand-operated direction valve, final controlling element can be completed the quick acting function, and the pressure oil of being exported by oil hydraulic pump or accumulator moves quickly into hydraulic cylinder piston the position that needs.In addition, oil hydraulic cylinder output utilizes hand pump and 3-position 4-way hand-operated direction valve to realize full manually-operable operation.
Efficient energy-saving of the present invention, control accuracy is high, fast response time, and modular design, simple in structure, good reliability, easy to install have the fault self-protecting function, can realize the quick acting of final controlling element, can adopt hand pump to complete output function.
Description of drawings
The hydraulic schematic diagram of a kind of electro-hydraulic servo actuator of Fig. 1.
1. 19. liang of position four-way solenoid valves of fuel tank 2. motor 3. hydraulic pump 4. filter A 5. filter B 6. overflow valve 7. servo valve 8. hydraulic lock A 9. hydraulic lock B 10. check valve A 11. two-bit triplet magnetic valve 12. hydraulic cylinder 13. safety valve A 14. safety valve B 15. pressure switch 16. hand stop valve 17. accumulator 18. safety valve C, 20. check valve B 21. manual pump 22. check valve C 23. 3-position 4-way hand-operated direction valve 24. Pressure gauges.
Embodiment
A kind of electro-hydraulic servo actuator, comprise: fuel tank 1, motor 2, oil hydraulic pump 3, relief valve 6, servovalve 7, oil hydraulic cylinder 12, pressure relay 15, accumulator 17, pressure gauge 24 also comprise: filter A4, filter B 5, hydraulic lock A8, hydraulic lock B9, one-way valve A10, one-way valve B20, one-way valve C22, safety valve A13, safety valve B14, safety valve C18, two-bit triplet solenoid valve 11, two position four-way solenoid valves 19,3-position 4-way hand-operated direction valve 23, hand pump 21, hand stop valve 16.oil hydraulic pump 3 imports are connected with filter A4 export pipeline, oil hydraulic pump 3 outlet is connected inlet ductwork with filter B 5 imports respectively and is connected with relief valve, one-way valve A10 import is connected with filter B 5 export pipelines, one-way valve A10 outlet respectively with servovalve 7 import c, two-bit triplet solenoid valve 11 import c pipelines connect, the import of hydraulic lock A8 is connected with the outlet a pipeline of servovalve 7, the outlet of hydraulic lock A8 is connected with the inlet ductwork of oil hydraulic cylinder 12, the import of hydraulic lock B9 is connected with the outlet b pipeline of servovalve 7, the outlet of hydraulic lock B9 is connected with the export pipeline of oil hydraulic cylinder 12, hydraulic lock A8 is connected control mouth and two-bit triplet solenoid valve 11 outlet a pipelines and is connected with hydraulic lock B9, accumulator 17 entrances are connected entrance pipe with hand stop valve 16 outlet respectively and are connected with pressure gauge, hand stop valve 16 outlets are connected with safety valve C18 inlet ductwork, hand stop valve 16 imports respectively with one-way valve A10 outlet with are connected position four-way solenoid valve 19 import a pipelines and are connected, two position four-way solenoid valve 19 outlet b are connected with one-way valve B20 inlet ductwork, 3-position 4-way hand-operated direction valve 23 import c are connected with one-way valve C22 export pipeline with one-way valve B20 outlet respectively, 3-position 4-way hand-operated direction valve 23 import d are connected with the outlet d pipeline of two position four-way solenoid valves 19, 3-position 4-way hand-operated direction valve 23 outlet a are connected with the inlet ductwork of oil hydraulic cylinder 12, 3-position 4-way hand-operated direction valve 23 outlet b are connected with the export pipeline of oil hydraulic cylinder 12, hand pump 21 outlets are connected with one-way valve C22 inlet ductwork, safety valve A13 import is connected with oil hydraulic cylinder 12 inlet ductwork, safety valve B14 import is connected with oil hydraulic cylinder 12 export pipelines, filter A4 import, relief valve 6 outlets, servovalve 7 outlet d, two-bit triplet solenoid valve 11 return opening b, safety valve A13 outlet, safety valve B14 outlet, safety valve C18 outlet, two position four-way solenoid valve 19 return opening c, hand pump 21 imports all are connected with fuel tank 1 pipeline.
Electro-hydraulic servo actuator adopts modular design, and oil hydraulic cylinder 12 separates installation with the final controlling element main frame.When final controlling element uses servovalve 7 fine adjustment controlled device, can jointly supply with pressure oil to servovalve 7 by oil hydraulic pump 3 and accumulator 17, when accumulator 17 oil pressure reach the capping value of pressure relay 15, motor 2 and oil hydraulic pump 3 shut down, keep the work of final controlling element by the pressure oil of accumulator 17 storages, in case when the interior oil pressure of accumulator 17 dropped to pressure relay 15 lower limit, motor 2 started automatically, drive oil hydraulic pump 3 and replenish high pressure oil to accumulator 17.After system regulated and puts in place, if there is instruction can make 11 outages of two-bit triplet solenoid valve, hydraulic lock A8, hydraulic lock B9 when using servovalve 7 accuracy controlling, must make two-bit triplet solenoid valve 11 be in "on" position oil hydraulic cylinder 12 original position lockings.When power supply, signal or hydraulic system break down, two position four-way solenoid valve 19 auto-breaking commutations, the pressure oil of accumulator 17 outputs is realized oil hydraulic cylinder 12 original position lockings or moves to two ends through 3-position 4-way hand-operated direction valve 23.Under normal operation, by two position four-way solenoid valves 19 and 3-position 4-way hand-operated direction valve 23, final controlling element can be completed the quick acting function, and the pressure oil of being exported by oil hydraulic pump 3 or accumulator 17 moves quickly into hydraulic cylinder piston the position that needs.In addition, oil hydraulic cylinder 12 outputs can utilize hand pump 21 and 3-position 4-way hand-operated direction valve 23 to realize full manually-operable operation.
Claims (1)
1. electro-hydraulic servo actuator, comprise: fuel tank (1), motor (2), oil hydraulic pump (3), relief valve (6), servovalve (7), oil hydraulic cylinder (12), pressure relay (15), accumulator (17), pressure gauge (24), characterized by further comprising: filter A(4), filter B (5), hydraulic lock A(8), hydraulic lock B(9), one-way valve A(10), one-way valve B(20), one-way valve C(22), safety valve A(13), safety valve B(14), safety valve C(18), two-bit triplet solenoid valve (11), two position four-way solenoid valves (19), 3-position 4-way hand-operated direction valve (23), hand pump (21), hand stop valve (16), oil hydraulic pump (3) import and filter A(4) export pipeline is connected, oil hydraulic pump (3) outlet is connected 6 with filter B (5) import with relief valve respectively) inlet ductwork is connected, one-way valve A(10) import is connected with filter B (5) export pipeline, one-way valve A(10) outlet respectively with servovalve (7) import c, two-bit triplet solenoid valve (11) import c pipeline connects, hydraulic lock A(8) import is connected with the outlet a pipeline of servovalve (7), hydraulic lock A(8) outlet is connected with the inlet ductwork of oil hydraulic cylinder (12), hydraulic lock B(9) import is connected with the outlet b pipeline of servovalve (7), hydraulic lock B(9) outlet is connected with the export pipeline of oil hydraulic cylinder (12), the control mouth of hydraulic lock A(8) being connected with hydraulic lock B(9 is connected with two-bit triplet solenoid valve (11) outlet a pipeline, accumulator (17) entrance is connected 24 with hand stop valve (16) outlet with pressure gauge respectively) entrance pipe is connected, hand stop valve (16) outlet and safety valve C(18) inlet ductwork is connected, hand stop valve (16) import respectively with one-way valve A(10) outlet with are connected position four-way solenoid valve (19) import a pipeline and are connected, two position four-way solenoid valves (19) outlets b and one-way valve B(20) inlet ductwork is connected, 3-position 4-way hand-operated direction valve (23) import c respectively with one-way valve B(20) outlet is connected export pipeline and is connected with one-way valve C(22, 3-position 4-way hand-operated direction valve (23) import d is connected with the outlet d pipeline of two position four-way solenoid valves (19), 3-position 4-way hand-operated direction valve (23) outlet a is connected with the inlet ductwork of oil hydraulic cylinder (12), 3-position 4-way hand-operated direction valve (23) outlet b is connected with the export pipeline of oil hydraulic cylinder (12), hand pump (21) outlet and one-way valve C(22) inlet ductwork is connected, safety valve A(13) import is connected with oil hydraulic cylinder (12) inlet ductwork, safety valve B(14) import is connected with oil hydraulic cylinder (12) export pipeline, filter A(4) import, relief valve (6) outlet, servovalve (7) outlet d, two-bit triplet solenoid valve (11) return opening b, safety valve A(13) outlet, safety valve B(14) outlet, safety valve C(18) outlet, two position four-way solenoid valves (19) return opening c, hand pump (21) import all is connected with fuel tank (1) pipeline,
Electro-hydraulic servo actuator adopts modular design, and oil hydraulic cylinder (12) separates installation with the final controlling element main frame; When final controlling element uses servovalve (7) fine adjustment controlled device, jointly supply with pressure oil to servovalve (7) by oil hydraulic pump (3) and accumulator (17), when accumulator (17) oil pressure reaches the capping value of pressure relay (15), motor (2) and oil hydraulic pump (3) shut down, keep the work of final controlling element by the pressure oil of accumulator (17) storage, when in case the interior oil pressure of accumulator (17) drops to pressure relay (15) lower limit, motor (2) starts automatically, drives oil hydraulic pump (3) and replenishes high pressure oil to accumulator (17); After system regulates and puts in place, if there is instruction to make two-bit triplet solenoid valve (11) outage, hydraulic lock A(8), hydraulic lock B(9) with the locking of oil hydraulic cylinder (12) original position, when using servovalve (7) accuracy controlling, must make two-bit triplet solenoid valve (11) be in "on" position; When power supply, signal or hydraulic system break down, the commutation of two position four-way solenoid valves (19) auto-breaking, the pressure oil of accumulator (17) output is realized the locking of oil hydraulic cylinder (12) original position or moves to two ends through 3-position 4-way hand-operated direction valve (23); Under normal operation, by two position four-way solenoid valves (19) and 3-position 4-way hand-operated direction valve (23), final controlling element is completed the quick acting function, and the pressure oil of being exported by oil hydraulic pump (3) or accumulator (17) moves quickly into hydraulic cylinder piston the position that needs; In addition, oil hydraulic cylinder (12) output utilizes hand pump (21) and 3-position 4-way hand-operated direction valve (23) to realize full manually-operable operation.
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| CN2013100772036A CN103115028A (en) | 2013-03-12 | 2013-03-12 | Electro-hydraulic servo actuator |
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| CN2013100772036A CN103115028A (en) | 2013-03-12 | 2013-03-12 | Electro-hydraulic servo actuator |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410808A (en) * | 2013-07-17 | 2013-11-27 | 丽水中德石化设备有限公司 | Intrinsic safety type fire-proof and explosion-proof electro-hydraulic actuator and control method thereof |
| CN103640974A (en) * | 2013-11-25 | 2014-03-19 | 无锡起岸重工机械有限公司 | Ship crane remote hydraulic control system |
| CN103672126A (en) * | 2013-12-26 | 2014-03-26 | 重庆川仪自动化股份有限公司 | Electro-hydraulic actuator |
| CN104088835A (en) * | 2014-07-06 | 2014-10-08 | 上海宏信设备工程有限公司 | Combined type threaded self-locking hydraulic redundant steel supporting axial force compensation system |
| CN104088858A (en) * | 2014-07-06 | 2014-10-08 | 上海宏信设备工程有限公司 | Power supply and hydraulic redundancy thread self-locking axial force compensation system |
| CN104155231A (en) * | 2014-04-02 | 2014-11-19 | 山东省鲁北地质工程勘察院 | Corrosion performance testing device and method for deep brine formation filter pipe |
| CN104314884A (en) * | 2013-09-11 | 2015-01-28 | 昆山新金福精密电子有限公司 | Hydraulic fine adjustment system |
| CN105135033A (en) * | 2015-07-30 | 2015-12-09 | 江苏大学 | Electro-hydraulic-servo-driven valve controlling device |
| CN105570240A (en) * | 2016-02-25 | 2016-05-11 | 河海大学常州校区 | Direct-driven hydropress electro-hydraulic servo system |
| CN107655761A (en) * | 2017-10-30 | 2018-02-02 | 上海应用技术大学 | Rupture disk pressure release test system and method |
| CN108953251A (en) * | 2018-09-14 | 2018-12-07 | 成都赛来科技有限公司 | A kind of Direct Travel double acting hydraulic actuating mechanism |
| CN109764020A (en) * | 2019-02-15 | 2019-05-17 | 徽瑞智能装备（黄山）有限责任公司 | A kind of servo-hydraulic valve positioner |
| CN110529449A (en) * | 2019-09-24 | 2019-12-03 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of hydraulic efficiency servo-valve high reliability pressure relief device and method |
| CN113494488A (en) * | 2020-04-03 | 2021-10-12 | 广东博智林机器人有限公司 | Hydraulic control valve group and servo valve control cylinder system |
| CN113653709A (en) * | 2021-07-01 | 2021-11-16 | 武汉船用机械有限责任公司 | Hydraulic control driving system |
| CN114033769A (en) * | 2021-11-29 | 2022-02-11 | 苏州丹顿机电有限公司 | Double-electromagnetic-valve holding control device |
| CN114704508A (en) * | 2022-04-13 | 2022-07-05 | 浙江大学 | Multi-margin hydraulic system for electro-hydraulic servo six-degree-of-freedom parallel robot |
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Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410808A (en) * | 2013-07-17 | 2013-11-27 | 丽水中德石化设备有限公司 | Intrinsic safety type fire-proof and explosion-proof electro-hydraulic actuator and control method thereof |
| CN103410808B (en) * | 2013-07-17 | 2015-07-15 | 丽水中德石化设备有限公司 | Intrinsic safety type fire-proof and explosion-proof electro-hydraulic actuator and control method thereof |
| CN104314884A (en) * | 2013-09-11 | 2015-01-28 | 昆山新金福精密电子有限公司 | Hydraulic fine adjustment system |
| CN103640974A (en) * | 2013-11-25 | 2014-03-19 | 无锡起岸重工机械有限公司 | Ship crane remote hydraulic control system |
| CN103640974B (en) * | 2013-11-25 | 2015-07-22 | 无锡纳润特科技有限公司 | Ship crane remote hydraulic control system |
| CN103672126A (en) * | 2013-12-26 | 2014-03-26 | 重庆川仪自动化股份有限公司 | Electro-hydraulic actuator |
| CN103672126B (en) * | 2013-12-26 | 2016-06-22 | 重庆川仪自动化股份有限公司 | A kind of electro-hydraulic actuator |
| CN104155231B (en) * | 2014-04-02 | 2017-07-14 | 山东省鲁北地质工程勘察院 | A kind of Deep Formation Brine stratum filter pipe corrosive nature test device and method of testing |
| CN104155231A (en) * | 2014-04-02 | 2014-11-19 | 山东省鲁北地质工程勘察院 | Corrosion performance testing device and method for deep brine formation filter pipe |
| CN104088858B (en) * | 2014-07-06 | 2016-05-18 | 上海宏信设备工程有限公司 | The screw thread self-locking profile shaft force compensating system of power supply and hydraulic pressure redundancy |
| CN104088835B (en) * | 2014-07-06 | 2016-05-18 | 上海宏信设备工程有限公司 | The hydraulic pressure redundancy steel axial force of the supports bucking-out system of Combined screw thread self-locking |
| CN104088858A (en) * | 2014-07-06 | 2014-10-08 | 上海宏信设备工程有限公司 | Power supply and hydraulic redundancy thread self-locking axial force compensation system |
| CN104088835A (en) * | 2014-07-06 | 2014-10-08 | 上海宏信设备工程有限公司 | Combined type threaded self-locking hydraulic redundant steel supporting axial force compensation system |
| CN105135033A (en) * | 2015-07-30 | 2015-12-09 | 江苏大学 | Electro-hydraulic-servo-driven valve controlling device |
| CN105570240A (en) * | 2016-02-25 | 2016-05-11 | 河海大学常州校区 | Direct-driven hydropress electro-hydraulic servo system |
| CN107655761A (en) * | 2017-10-30 | 2018-02-02 | 上海应用技术大学 | Rupture disk pressure release test system and method |
| CN108953251A (en) * | 2018-09-14 | 2018-12-07 | 成都赛来科技有限公司 | A kind of Direct Travel double acting hydraulic actuating mechanism |
| CN109764020A (en) * | 2019-02-15 | 2019-05-17 | 徽瑞智能装备（黄山）有限责任公司 | A kind of servo-hydraulic valve positioner |
| CN110529449A (en) * | 2019-09-24 | 2019-12-03 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of hydraulic efficiency servo-valve high reliability pressure relief device and method |
| CN110529449B (en) * | 2019-09-24 | 2021-03-09 | 中国航空工业集团公司沈阳飞机设计研究所 | High-reliability pressure relief device and method for hydraulic servo valve |
| CN113494488A (en) * | 2020-04-03 | 2021-10-12 | 广东博智林机器人有限公司 | Hydraulic control valve group and servo valve control cylinder system |
| CN113494488B (en) * | 2020-04-03 | 2022-07-19 | 广东博智林机器人有限公司 | Hydraulic control valve group and servo valve control cylinder system |
| CN113653709A (en) * | 2021-07-01 | 2021-11-16 | 武汉船用机械有限责任公司 | Hydraulic control driving system |
| CN114033769A (en) * | 2021-11-29 | 2022-02-11 | 苏州丹顿机电有限公司 | Double-electromagnetic-valve holding control device |
| CN114704508A (en) * | 2022-04-13 | 2022-07-05 | 浙江大学 | Multi-margin hydraulic system for electro-hydraulic servo six-degree-of-freedom parallel robot |
| CN114704508B (en) * | 2022-04-13 | 2023-01-24 | 浙江大学 | Multi-margin hydraulic system for electro-hydraulic servo six-degree-of-freedom parallel robot |
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Application publication date: 20130522 |