CN203161691U - Synchronous oil cylinder hydraulic system capable of achieving single-cylinder adjustment without need for reducing working pressure - Google Patents
Synchronous oil cylinder hydraulic system capable of achieving single-cylinder adjustment without need for reducing working pressure Download PDFInfo
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- CN203161691U CN203161691U CN 201320060580 CN201320060580U CN203161691U CN 203161691 U CN203161691 U CN 203161691U CN 201320060580 CN201320060580 CN 201320060580 CN 201320060580 U CN201320060580 U CN 201320060580U CN 203161691 U CN203161691 U CN 203161691U
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Abstract
The utility model relates to a synchronous oil cylinder hydraulic system of a hydraulic machine. The synchronous oil cylinder hydraulic system comprises an oil pump, a one-way valve and a pressure flow valve. One end of the oil pump is communicated with the pressure flow valve and a reversing valve in sequence through the one-way valve. The synchronous oil cylinder hydraulic system is characterized in that a left position of the reversing valve is communicated with two rear cavities of oil supply synchronous cylinders respectively, two front cavities of the oil supply synchronous cylinders are communicated with rear cavities of two working cylinders respectively through magnetic exchange valves and hydraulic control one-way valves, and the magnetic exchange valves are communicated with a right position of the reversing valve. Front cavities of the two working cavities are communicated with the right position of the reversing valve through a balance valve and are respectively communicated with oil path control ends of the hydraulic control one-way valves through the same magnetic exchange valve after being communicated with each other. According to the synchronous oil cylinder hydraulic system, the two oil supply synchronous cylinders share the same inner-hole cylinder and the same shaft, are provided with two oil supply chambers, and supply oil to the two working cylinders with the same effective area, and accordingly synchronous advance and retreat of the two working cylinders is achieved. Through the design of oil paths, the two working cylinders can achieve independent inching without mutual interference.
Description
Technical field
The present invention relates to a kind of oil cylinder hydraulic system of hydraulic press, relate in particular to a kind of synchronous fuel tank hydraulic system of hydraulic press.
Background technique
In the design of hydraulic press and the production, run into the demand that will satisfy the oil cylinder synchronous working through regular meeting.For the hydraulic system that synchronization accuracy is had relatively high expectations, current at present scheme has two kinds, and a kind of is the serial oil cylinders synchronizing circuit, and another kind is to use the synchronous fuel tank synchronizing circuit.The serial oil cylinders synchronizing circuit must use the oil cylinder of bilateral band piston rod, or two cylinder useful area of series connection are equal, and this system is to same load, and the oil circuit pressure that needs increases, and the multiple of its increase is the number of serial oil cylinders.Synchronous fuel tank synchronizing circuit synchronization accuracy is higher, and defective is that two oil cylinders all can not single movement, and this is very inconvenient when machinery requirement is adjusted mould.
Summary of the invention
The objective of the invention is to remedy the deficiencies in the prior art, but design the single cylinder adjustment and need not reduce the synchronous fuel tank hydraulic system of system works pressure, solving neither needs to increase oil circuit pressure and also can allow each oil cylinder can single movement in the synchronizing circuit, to make things convenient for the mould adjustment of machine school.
Technological scheme of the present invention is as follows:
But single cylinder adjustment and need not reduce the synchronous fuel tank hydraulic system of system works pressure, comprise oil purifier, oil pump, one-way valve A, one-way valve B and pressure flow metered valve, above-mentioned oil pump one end is communicated with oil purifier, an other end is communicated with one-way valve A, one-way valve A is communicated with selector valve through the pressure flow metered valve, be arranged in parallel the one-way valve B reverse with one-way valve A with the pressure flow metered valve, it is characterized in that: the position, a left side of described selector valve is communicated with respectively with the namely preceding oil cylinder back cavity of two back cavities of fuel feeding synchronized cylinder and back oil cylinder back cavity, the namely preceding oil cylinder ante-chamber of two ante-chambers of fuel feeding synchronized cylinder and back oil cylinder ante-chamber pass through a passage of solenoid directional control valve respectively, back cavity with two clutch release slave cylinders behind the oil inlet and outlet of Pilot operated check valve is communicated with, and the another one passage of above-mentioned solenoid directional control valve is communicated with the right position of selector valve simultaneously; The ante-chamber of two clutch release slave cylinders is communicated with by equilibrium valve and is communicated with the right position of selector valve, and simultaneously, the ante-chamber of two clutch release slave cylinders is communicated with and is communicated with the oil circuit control end of above-mentioned Pilot operated check valve respectively by same solenoid directional control valve.
When described selector valve was changed to right, Pilot operated check valve was opened in the solenoid directional control valve energising, and the piston of two clutch release slave cylinders is withdrawn to back cavity.
After position limit switch was run in described arbitrary clutch release slave cylinder backhaul, solenoid directional control valve was all switched on, and allowed two clutch release slave cylinder back cavities connect fuel tank, and system's hydraulic oil enters oil cylinder ante-chamber and the back oil cylinder ante-chamber of fuel feeding synchronized cylinder.
Described fuel feeding synchronized cylinder adopts coaxial twin-tub structure with internal diameter.
Oil cylinder and back oil cylinder before described fuel feeding synchronized cylinder comprises, preceding oil cylinder and back oil cylinder be same piston rod altogether, is provided with adpting flange between preceding oil cylinder and the back oil cylinder; Preceding oil cylinder comprises preceding gland, preceding cylinder guide pin bushing, preceding cylinder tube and preceding oil cylinder piston, is arranged on the card key of fixing preceding oil cylinder piston on the piston rod, and the card key gland of fixing and sealed card key; Back oil cylinder comprises rear pressing cover, back cylinder guide pin bushing, back cylinder tube and back oil cylinder piston, and is installed at the bottom of the back oil cylinder on the rear pressing cover internal surface, on piston rod is fixed at the bottom of the oil cylinder of back by locking nut one end; Oil cylinder ante-chamber before forming between cylinder guide pin bushing, preceding cylinder tube and the preceding oil cylinder piston before the assembling back, oil cylinder back cavity before forming between preceding cylinder tube, preceding oil cylinder piston and the back cylinder guide pin bushing, form back oil cylinder ante-chamber between back cylinder guide pin bushing, back cylinder tube and the back oil cylinder piston, oil cylinder back cavity after forming between at the bottom of back cylinder tube, back oil cylinder piston and the back oil cylinder; Before cylinder tube and back be respectively arranged with on the cylinder tube before the oilhole of oil cylinder ante-chamber, preceding oil cylinder back cavity, back oil cylinder ante-chamber, back oil cylinder back cavity and external communications.
Described two clutch release slave cylinder size dimensions are identical.
Described clutch release slave cylinder comprises cylinder bottom, slave cylinder piston bar and cylinder body, and the guide pin bushing of guiding piston rod guiding, be arranged on the cylinder body stationary cylinder respectively at the bottom of, the interior card key of guide pin bushing; Form ante-chamber between assembling back guide pin bushing, slave cylinder piston bar and the cylinder body, form back cavity between cylinder bottom, slave cylinder piston bar and the cylinder body; Cylinder body be provided with ante-chamber, back cavity respectively with the clutch release slave cylinder oilhole of external communications.
Operating principle is: the left side position of oil pump by pressure flow metered valve and selector valve is to preceding oil cylinder back cavity and two chamber fuel feeding of back oil cylinder back cavity of coaxial fuel feeding synchronized cylinder with internal diameter.The passage of the preceding oil cylinder ante-chamber of fuel feeding synchronized cylinder by solenoid directional control valve and the back cavity fuel feeding of the oil inlet and outlet of Pilot operated check valve first clutch release slave cylinder in two; The passage of the back oil cylinder ante-chamber of fuel feeding synchronized cylinder by solenoid directional control valve and the back cavity fuel feeding of the oil inlet and outlet of Pilot operated check valve second clutch release slave cylinder in two.Because that the fuel feeding synchronized cylinder is internal diameter is identical, with a piston rod, so its preceding oil cylinder ante-chamber and two cavity oil pump capacity of back oil cylinder ante-chamber equate, again because two clutch release slave cylinders and useful area equate, so it is equal to the speed that ante-chamber is released respectively.When selector valve is changed to right, with two direct-connected solenoid directional control valves energisings of clutch release slave cylinder ante-chamber, open above-mentioned Pilot operated check valve, two clutch release slave cylinders are withdrawn to back cavity respectively.Simultaneously, can both return to the home position in order to ensure fuel feeding synchronized cylinder and two clutch release slave cylinders at every turn, after position limit switch is run in arbitrary clutch release slave cylinder backhaul, all switch on two solenoid directional control valves that preceding oil cylinder ante-chamber and back oil cylinder ante-chamber directly are communicated with, allow two clutch release slave cylinder back cavities connect fuel tank, system's hydraulic oil enters preceding oil cylinder ante-chamber and the back oil cylinder ante-chamber of fuel feeding synchronized cylinder.When needs crawl first clutch release slave cylinder advance, when second clutch release slave cylinder is motionless, the solenoid directional control valve energising that needs transference back oil cylinder ante-chamber directly to be communicated with, crawl first clutch release slave cylinder retreats, when second clutch release slave cylinder is motionless, needs to convey the solenoid directional control valve energising that preceding oil cylinder ante-chamber directly is communicated with; Otherwise, need crawl second clutch release slave cylinder advance, when first clutch release slave cylinder is motionless, the solenoid directional control valve energising that the oil cylinder ante-chamber directly is communicated with before needing to convey is put second clutch release slave cylinder of starting building and is retreated, when first clutch release slave cylinder is motionless, needs to convey the solenoid directional control valve energising that back oil cylinder ante-chamber directly is communicated with.
The invention has the beneficial effects as follows: the design adopts the clutch release slave cylinder fuel feeding that equates to two useful area respectively with endoporus cylinder, fuel feeding synchronized cylinder coaxial, two fuel feeding chambers, realizes that two clutch release slave cylinders advance and retreat synchronously.Simultaneously by the design of new oil circuit, allow two clutch release slave cylinders crawl and not interfering with each other respectively.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is fuel feeding synchronized cylinder structural representation.
Fig. 3 is the clutch release slave cylinder structural representation.
Wherein: 1: oil purifier; 2: oil pump; 3: one-way valve A; 4: one-way valve B; 5: the pressure flow metered valve; 6: the fuel feeding synchronized cylinder; 7,10 and 14: solenoid directional control valve; 8 and 12: Pilot operated check valve; 9 and 11: the work synchronized cylinder; 97 and 117: ante-chamber; 98 and 118: back cavity; 99 and 119: position limit switch; 13: equilibrium valve; 15: selector valve; 61: preceding oil cylinder; Gland before 611; 612: preceding cylinder guide pin bushing; 613: preceding cylinder tube; 614: preceding oil cylinder piston; 615: the card key; 616: card key gland; 617: preceding oil cylinder ante-chamber; 618: preceding oil cylinder back cavity; 62: the back oil cylinder; 621: rear pressing cover; 622: back cylinder guide pin bushing; 623: the back cylinder tube; 624: the back oil cylinder piston; 625: at the bottom of the oil cylinder of back; 626: locking nut; 627: back oil cylinder ante-chamber; 628: back oil cylinder back cavity; 63: adpting flange; 64: piston rod; 91: interior card key; 92: cylinder bottom:; 93: the slave cylinder piston bar; 94: cylinder body; 95: guide pin bushing; 96: the clutch release slave cylinder oilhole; 97: ante-chamber; 98: back cavity; 99: position limit switch.
Embodiment
For being illustrated more clearly in content of the present invention, be further described below in conjunction with the drawings and specific embodiments:
As shown in Figure 1, but single cylinder adjustment and need not reduce the synchronous fuel tank hydraulic system of system works pressure, comprise oil purifier 1, oil pump 2, one-way valve A3, one-way valve B4 and pressure flow metered valve 5, above-mentioned oil pump 2 one ends are communicated with oil purifier 1, an other end is communicated with one-way valve A3, one-way valve A3 is communicated with selector valve 15 through pressure flow metered valve 5, is arranged in parallel the one-way valve B4 reverse with one-way valve A3 with pressure flow metered valve 5; The position, a left side of selector valve 15 is communicated with respectively with the namely preceding oil cylinder back cavity 618 of two back cavities of fuel feeding synchronized cylinder 6 and back oil cylinder back cavity 628, two ante-chambers of fuel feeding synchronized cylinder 6 namely before oil cylinder ante-chamber 617 and back oil cylinder ante-chamber 627 respectively by being communicated with two clutch release slave cylinders 9,11 back cavity 98,118 behind solenoid directional control valve 7, a passage of 14, Pilot operated check valve 8,12 the oil inlet and outlet, above-mentioned solenoid directional control valve 7,14 another one passage are communicated with right of selector valve 15 simultaneously; Two clutch release slave cylinders 9,11 ante-chamber 97,117 are communicated with by equilibrium valve 13 right with selector valve 15 and are communicated with, simultaneously, two clutch release slave cylinders 9,11 ante-chamber 97,117 are communicated with by same solenoid directional control valve 10 and are communicated with above-mentioned Pilot operated check valve 8,12 oil circuit control end respectively.
When selector valve 15 was changed to right position, solenoid directional control valve 10 energisings were opened Pilot operated check valve 8,12, two clutch release slave cylinders 9,11 piston to back cavity 98,118 withdrawals.
Fuel feeding synchronized cylinder 6 adopts coaxial twin-tub structure with internal diameter.Oil cylinder 61 and back oil cylinder 62 before fuel feeding synchronized cylinder 6 comprises, preceding oil cylinder 61 and back oil cylinder 62 be same piston rod 64 altogether, is provided with adpting flange 63 between preceding oil cylinder 61 and the back oil cylinder 62; Gland 611, preceding cylinder guide pin bushing 612, preceding cylinder tube 613 and preceding oil cylinder piston 614 before preceding oil cylinder 61 comprises are arranged on the card key 615 of fixing preceding oil cylinder piston 614 on the piston rod 64, and fix the card key gland 616 that reaches sealed card key 615; Back oil cylinder 62 comprises rear pressing cover 621, back cylinder guide pin bushing 622, back cylinder tube 623 and back oil cylinder piston 624, and is installed at the bottom of the back oil cylinder on rear pressing cover 621 internal surfaces 625, and piston rod 64 is fixed at the bottom of the oil cylinder of back on 625 by locking nut 626 1 ends; Oil cylinder ante-chamber 617 before forming between cylinder guide pin bushing 612, preceding cylinder tube 613 and the preceding oil cylinder piston 614 before the assembling back, oil cylinder back cavity 618 before forming between preceding cylinder tube 613, preceding oil cylinder piston 614 and the back cylinder guide pin bushing 622, form back oil cylinder ante-chamber 627 between back cylinder guide pin bushing 622, back cylinder tube 623 and the back oil cylinder piston 624, form back oil cylinder back cavity 628 between 625 at the bottom of back cylinder tube 623, back oil cylinder piston 624 and the back oil cylinder; Before be respectively arranged with on cylinder tube 613 and the back cylinder tube 623 before the oilhole 96 of oil cylinder ante-chamber 617, preceding oil cylinder back cavity 618, back oil cylinder ante-chamber 627, back oil cylinder back cavity 628 and external communications.
Two clutch release slave cylinders 9,11 size dimensions are identical.Clutch release slave cylinder 9 comprises cylinder bottom 92, slave cylinder piston bar 93 and cylinder body 94, and the guide pin bushing 95 of guiding slave cylinder piston bar 93 guiding, is arranged on the cylinder body 94 at the bottom of the stationary cylinder respectively 92, the interior card key 91 of guide pin bushing 95; Form ante-chamber 97 between assembling back guide pin bushing 95, slave cylinder piston bar 93 and the cylinder body 94, form back cavity 98 between cylinder bottom 92, slave cylinder piston bar 93 and the cylinder body 94; Cylinder body 94 be provided with ante-chamber 97, back cavity 98 respectively with the clutch release slave cylinder oilhole 96 of external communications.
During real work, oil pump 2 position, a left side by pressure flow metered valve 5 and selector valve 15 is to preceding oil cylinder back cavity 618 and 628 two chamber fuel feeding of back oil cylinder back cavity of coaxial fuel feeding synchronized cylinder 6 with internal diameter.The preceding oil cylinder ante-chamber 617 of fuel feeding synchronized cylinder 6 by solenoid directional control valve 7 passage and the oil inlet and outlet of Pilot operated check valve 8 to back cavity 98 fuel feeding of clutch release slave cylinder 9; The back oil cylinder ante-chamber 627 of fuel feeding synchronized cylinder 6 by solenoid directional control valve 14 passage and the oil inlet and outlet of Pilot operated check valve 12 to back cavity 118 fuel feeding of clutch release slave cylinder 11.Because it is identical, same with a piston rod that fuel feeding synchronized cylinder 6 is internal diameter, so its preceding oil cylinder ante- chamber 617 and 627 two cavity oil pump capacity of back oil cylinder ante-chamber equate, again because the useful area of clutch release slave cylinder 9 and 11 is equal, so it equates to ante-chamber 97,117 speed of releasing respectively.When selector valve 15 was changed to right, Pilot operated check valve 8 and 12 were opened in solenoid directional control valve 10 energisings, and clutch release slave cylinder 9 and 11 is respectively to back cavity 98,118 withdrawals.Simultaneously, can both return to the home position in order to ensure fuel feeding synchronized cylinder and two clutch release slave cylinders at every turn, after position limit switch 99 or 119 are run in arbitrary clutch release slave cylinder 9 and 11 backhauls, solenoid directional control valve 7 and 14 is all switched on, allow two clutch release slave cylinder back cavities 98 and 118 connect fuel tank, system's hydraulic oil enters oil cylinder ante-chamber 617 and the back oil cylinder ante-chamber 627 of fuel feeding synchronized cylinder 6.When needs crawl clutch release slave cylinder 9 advances, when clutch release slave cylinder 11 is motionless, need allow solenoid directional control valve 14 energisings, crawl clutch release slave cylinder 9 retreats, when clutch release slave cylinder 11 is motionless, need allow solenoid directional control valve 7 energisings; Otherwise, when needing crawl clutch release slave cylinder 11 to advance, when clutch release slave cylinder 9 is motionless, need allow solenoid directional control valve 7 energisings, crawl clutch release slave cylinder 11 retreats, when clutch release slave cylinder 9 is motionless, need allow solenoid directional control valve 14 energisings.
Above-described embodiment is principle and the effect thereof of illustrative the invention only; can not think limiting the scope of the invention; for the person of ordinary skill of the art; under the prerequisite that does not break away from the invention design; can also make some distortion and improvement, all should fall within the protection domain of claim of the present invention.
Claims (6)
1. but single cylinder adjustment and need not reduce the synchronous fuel tank hydraulic system of system works pressure, comprise oil purifier (1), oil pump (2), one-way valve A (3), one-way valve B (4) and pressure flow metered valve (5), above-mentioned oil pump (2) one ends are communicated with oil purifier (1), an other end is communicated with one-way valve A (3), one-way valve A (3) is communicated with selector valve (15) through pressure flow metered valve (5), be arranged in parallel the one-way valve B (4) reverse with one-way valve A (3) with pressure flow metered valve (5), it is characterized in that: the position, a left side of described selector valve (15) is communicated with respectively with the namely preceding oil cylinder back cavity (618) of two back cavities of fuel feeding synchronized cylinder (6) and back oil cylinder back cavity (628), the namely preceding oil cylinder ante-chamber (617) of two ante-chambers of fuel feeding synchronized cylinder (6) and back oil cylinder ante-chamber (627) are respectively by solenoid directional control valve (7,14) a passage, Pilot operated check valve (8,12) behind the oil inlet and outlet with two clutch release slave cylinders (9,11) back cavity (98,118) be communicated with above-mentioned solenoid directional control valve (7,14) another one passage is communicated with the right position of selector valve (15) simultaneously; The ante-chamber (97,117) of two clutch release slave cylinders (9,11) is communicated with by equilibrium valve (13) and is communicated with the right position of selector valve (15), simultaneously, the connection of the ante-chamber (97,117) of two clutch release slave cylinders (9,11) is communicated with the oil circuit control end of above-mentioned Pilot operated check valve (8,12) respectively by same solenoid directional control valve (10).
2. but single cylinder adjustment according to claim 1 and need not reduce the synchronous fuel tank hydraulic system of system works pressure, it is characterized in that: when described selector valve (15) is changed to right, solenoid directional control valve (10) energising, open Pilot operated check valve (8,12), the piston of two clutch release slave cylinders (9,11) is withdrawn to back cavity (98,118).
3. but single cylinder adjustment according to claim 1 and need not reduce the synchronous fuel tank hydraulic system of system works pressure, it is characterized in that: described fuel feeding synchronized cylinder (6) adopts coaxial twin-tub structure with internal diameter.
4. but single cylinder adjustment according to claim 3 and need not reduce the synchronous fuel tank hydraulic system of system works pressure, it is characterized in that: described fuel feeding synchronized cylinder (6) comprises preceding oil cylinder (61) and back oil cylinder (62), preceding oil cylinder (61) and back oil cylinder (62) be same piston rod (64) altogether, is provided with adpting flange (63) between preceding oil cylinder (61) and the back oil cylinder (62); Preceding oil cylinder (61) comprises preceding gland (611), preceding cylinder guide pin bushing (612), preceding cylinder tube (613) and preceding oil cylinder piston (614), be arranged on piston rod (64) and go up the card key (615) of fixing preceding oil cylinder piston (614), and the card key gland (616) of fixing and sealed card key (615); Back oil cylinder (62) comprises rear pressing cover (621), back cylinder guide pin bushing (622), back cylinder tube (623) and back oil cylinder piston (624), and being installed in (625) at the bottom of the back oil cylinder on rear pressing cover (621) internal surface, piston rod (64) is fixed at the bottom of the oil cylinder of back on (625) by locking nut (626) one ends; Oil cylinder ante-chamber (617) before forming between cylinder guide pin bushing (612), preceding cylinder tube (613) and the preceding oil cylinder piston (614) before the assembling back, oil cylinder back cavity (618) before forming between preceding cylinder tube (613), preceding oil cylinder piston (614) and the back cylinder guide pin bushing (622), form back oil cylinder ante-chamber (627) between back cylinder guide pin bushing (622), back cylinder tube (623) and the back oil cylinder piston (624), form back oil cylinder back cavity (628) between (625) at the bottom of back cylinder tube (623), back oil cylinder piston (624) and the back oil cylinder; The oilhole (96) of oil cylinder ante-chamber (617), preceding oil cylinder back cavity (618), back oil cylinder ante-chamber (627), back oil cylinder back cavity (628) and external communications before being respectively arranged with on preceding cylinder tube (613) and the back cylinder tube (623).
5. but single cylinder adjustment according to claim 1 and need not reduce the synchronous fuel tank hydraulic system of system works pressure, it is characterized in that: described two clutch release slave cylinders (9,11) size dimension is identical.
6. but single cylinder adjustment according to claim 5 and need not reduce the synchronous fuel tank hydraulic system of system works pressure, it is characterized in that: described clutch release slave cylinder (9) comprises cylinder bottom (92), slave cylinder piston bar (93) and cylinder body (94), and the guide pin bushing (95) of guiding slave cylinder piston bar (93) guiding, be arranged on the interior card key (91) that cylinder body (94) is gone up (92) at the bottom of the stationary cylinder respectively, guide pin bushing (95); Form ante-chamber (97) between assembling back guide pin bushing (95), slave cylinder piston bar (93) and the cylinder body (94), form back cavity (98) between cylinder bottom (92), slave cylinder piston bar (93) and the cylinder body (94); Cylinder body (94) be provided with ante-chamber (97), back cavity (98) respectively with the clutch release slave cylinder oilhole (96) of external communications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320060580 CN203161691U (en) | 2013-02-01 | 2013-02-01 | Synchronous oil cylinder hydraulic system capable of achieving single-cylinder adjustment without need for reducing working pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320060580 CN203161691U (en) | 2013-02-01 | 2013-02-01 | Synchronous oil cylinder hydraulic system capable of achieving single-cylinder adjustment without need for reducing working pressure |
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| CN203161691U true CN203161691U (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320060580 Expired - Fee Related CN203161691U (en) | 2013-02-01 | 2013-02-01 | Synchronous oil cylinder hydraulic system capable of achieving single-cylinder adjustment without need for reducing working pressure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742467A (en) * | 2014-01-07 | 2014-04-23 | 马钢(集团)控股有限公司 | Synchronous control system for master and salve hydraulic cylinders with fixed potential difference and control method therefor |
| CN108824216A (en) * | 2018-08-24 | 2018-11-16 | 北京中铁房山桥梁有限公司 | A kind of slip synchronizer and prestressed girder pipeline withdrawing sebific duct and whole beam lashing trolley with slip synchronizer |
| CN109368543A (en) * | 2018-11-23 | 2019-02-22 | 东莞市华楠骏业机械制造有限公司 | Multi-dot hydraulic pressure goes up and down synchronization system |
| CN109458369A (en) * | 2018-12-29 | 2019-03-12 | 浙江大学舟山海洋研究中心 | Three cylinder synchronization lifting mechanisms |
| CN112610542A (en) * | 2020-12-15 | 2021-04-06 | 库卡机器人(广东)有限公司 | Balance cylinder hydraulic system |
| CN113944678A (en) * | 2021-10-28 | 2022-01-18 | 杭州华鼎新能源有限公司 | Double-rod linkage type hydraulic drive control system |
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2013
- 2013-02-01 CN CN 201320060580 patent/CN203161691U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742467A (en) * | 2014-01-07 | 2014-04-23 | 马钢(集团)控股有限公司 | Synchronous control system for master and salve hydraulic cylinders with fixed potential difference and control method therefor |
| CN108824216A (en) * | 2018-08-24 | 2018-11-16 | 北京中铁房山桥梁有限公司 | A kind of slip synchronizer and prestressed girder pipeline withdrawing sebific duct and whole beam lashing trolley with slip synchronizer |
| CN109368543A (en) * | 2018-11-23 | 2019-02-22 | 东莞市华楠骏业机械制造有限公司 | Multi-dot hydraulic pressure goes up and down synchronization system |
| CN109458369A (en) * | 2018-12-29 | 2019-03-12 | 浙江大学舟山海洋研究中心 | Three cylinder synchronization lifting mechanisms |
| CN109458369B (en) * | 2018-12-29 | 2023-10-27 | 浙江大学舟山海洋研究中心 | Three-cylinder synchronous lifting mechanism |
| CN112610542A (en) * | 2020-12-15 | 2021-04-06 | 库卡机器人(广东)有限公司 | Balance cylinder hydraulic system |
| CN112610542B (en) * | 2020-12-15 | 2022-03-25 | 库卡机器人(广东)有限公司 | Balance cylinder hydraulic system |
| CN113944678A (en) * | 2021-10-28 | 2022-01-18 | 杭州华鼎新能源有限公司 | Double-rod linkage type hydraulic drive control system |
| CN113944678B (en) * | 2021-10-28 | 2024-05-31 | 杭州华鼎新能源有限公司 | Double-rod linkage type hydraulic driving control system |
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Effective date of registration: 20200616 Address after: 453621, Meng Zhuang village, Meng Town, Xinxiang City, Henan, Huixian Patentee after: HENAN MENGDIAN GROUP XINGDI FORGING AND STAMPING EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 528247, Guangdong Province, Foshan City, South China Sea Yanbu Hexi Village Li wing Patentee before: FOSHAN NANHAI XINGDI MACHINERY MANUFACTURING Co.,Ltd. |
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