CN202673808U - Multi-cylinder diffluence motor synchronous compensation hydraulic system - Google Patents
Multi-cylinder diffluence motor synchronous compensation hydraulic system Download PDFInfo
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- CN202673808U CN202673808U CN 201220323206 CN201220323206U CN202673808U CN 202673808 U CN202673808 U CN 202673808U CN 201220323206 CN201220323206 CN 201220323206 CN 201220323206 U CN201220323206 U CN 201220323206U CN 202673808 U CN202673808 U CN 202673808U
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Abstract
The utility model discloses a multi-cylinder diffluence motor synchronous compensation hydraulic system, which comprises a main oil pipe, an oil return pipe, at least two hydraulic cylinders and diffluence motors corresponding to the hydraulic cylinders one by one, wherein the diffluence motors and the hydraulic cylinders are connected through diffluence pipes; an oil compensation pressure-limiting control valve block is arranged between the diffluence motors and the hydraulic cylinders, and comprises an overflow pipe and an oil compensation pipe which are parallel; the overflow pipe is provided with an overflow valve; the oil inlet of the overflow valve is connected with the diffluence pipes through one-way valves I; the one-way valves I correspond to the diffluence pipes one by one; the oil compensation pipe is connected with the diffluence pipes through one-way valves II; the one-way valves II correspond to the diffluence pipes one by one; the overflow pipe and the oil compensation pipe are connected with the oil return pipe; and the oil return pipe is provided with an oil return pipe one-way valve. The multi-cylinder diffluence motor synchronous compensation hydraulic system has the advantages of high bias load resistance, high synchronism and high running reliability, and can easily adjust the limited pressure of a pressure-limiting protection overflow valve on project site.
Description
Technical field
The utility model relates to a kind of hydraulic system, and concrete is a kind of a kind of synchroballistic hydraulic system that adopts the hydraulic multi-cylinder diffluence motor to control a plurality of hydraulic cylinder synchronous operations.
Background technique
Adopting diffluence motor to carry out in the hydraulic system of a plurality of hydraulic cylinder synchronous controls, the diffluence motor synchroballistic hydraulic pressure installation that tradition is used, it mainly adopts a relief valve and one-way valve to form the synchroballistic loop of motor by each diffluence motor distribution chamber, as shown in Figure 1, be existing diffluence motor synchroballistic hydraulic system, diffluence motor is rigidly connected by an axle, when a plurality of oil hydraulic cylinders move simultaneously, if some oil hydraulic cylinders first to the end or be stuck, this loop certainly leads to " building the pressure " or " inhaling empty " phenomenon.In order to prevent that this phenomenon from producing, and must set up essentially identical protection pressure with each relief valve on the synchroballistic loop.When certain diffluence motor distribution chamber generation built the pressure, distribution chamber relief valve corresponding on the synchroballistic loop carried out overflow, plays the voltage-limiting protection effect; When certain diffluence motor distribution chamber produced " inhaling empty " phenomenon, the corresponding one-way valve on the synchroballistic loop will be opened, and carries out repairing, prevented that " inhaling empty " phenomenon from occuring.
Be 03108099.5 application for a patent for invention disclosed " pans four cylinder hydraulic lifts " such as application number, this patent is exactly the synchronization hydraulic system that 4 relief valves of a kind of typical application and 4 one-way valves carry out the four cylinders shunting syncmotor of synchroballistic.The setting pressure of all relief valves in the present this synchroballistic loop can only mix up when dispatching from the factory in advance, be difficult to each relief valve in the repairing pressure limiting control valve piece is set up essentially identical pressure at engineering site, the setting pressure that a plurality of relief valves often occur is inconsistent, when unbalance loading appears in a plurality of hydraulic cylinder forces, overflow will occur in the relief valve that setting pressure is low, thereby cause the further aggravation of unbalance loading, a plurality of oil cylinders can produce extremely asynchrony phenomenon when serious, even can damage the driving arrangement of oil hydraulic cylinder.
Given this; the utility model is intended to existing diffluence motor synchroballistic hydraulic system is improved; the multi-cylinder diffluence motor synchroballistic hydraulic system that obtains after the improvement has that offset load resistance is strong, net synchronization capability good, operational reliability is high, and can regulate easily at engineering site the pressure limiting pressure of voltage-limiting protection relief valve.
Summary of the invention
The technical problems to be solved in the utility model is to propose a kind of multi-cylinder diffluence motor synchroballistic hydraulic system; this multi-cylinder diffluence motor synchroballistic hydraulic system has that offset load resistance is strong, net synchronization capability good, operational reliability is high, and can regulate easily at engineering site the pressure limiting pressure of voltage-limiting protection relief valve.
Realize above-mentioned technical purpose, multi-cylinder diffluence motor synchroballistic hydraulic system of the present utility model, comprise main oil pipe, return tube, at least two oil hydraulic cylinders and with the oil hydraulic cylinder diffluence motor of corresponding setting one by one, link to each other by ram's horns between described diffluence motor and the oil hydraulic cylinder, be provided with repairing pressure limiting control valve piece between described diffluence motor and the oil hydraulic cylinder, described repairing pressure limiting control valve piece comprises and is spill pipe and the repairing pipe that is arranged in parallel; Described spill pipe is provided with relief valve, and the filler opening of described relief valve links to each other with ram's horns by one-way valve I, and one-way valve I and one by one corresponding setting of ram's horns; Described repairing pipe links to each other with ram's horns by one-way valve II, and one-way valve II and one by one corresponding setting of ram's horns; Described spill pipe links to each other with repairing Guan Junyu return tube, and return tube is provided with the return tube one-way valve.
Further, also comprise cylinder side valve piece, described cylinder side valve piece comprises the Pilot operated check valve that links to each other with oil hydraulic cylinder, and described Pilot operated check valve is arranged on the ram's horns;
Further, also comprise speed governing reversing control valve platform, described speed governing reversing control valve platform comprises electro-hydraulic reversing valve, and two oil outlets of described electro-hydraulic reversing valve link to each other with the rod chamber of diffluence motor and oil hydraulic cylinder respectively, and two filler openings of electro-hydraulic reversing valve link to each other with return tube with main oil pipe respectively;
Further, be provided with between described electro-hydraulic reversing valve and the diffluence motor for control oil hydraulic cylinder stretch out two one-way throttle valves of speed and retraction speed;
Further, be provided with the one way pressure-reducing valve of rod chamber decompression when retracting for oil hydraulic cylinder between described electro-hydraulic reversing valve and the oil hydraulic cylinder;
Further, described speed governing reversing control valve platform also comprises the solenoid directional control valve that links to each other with Pilot operated check valve;
Further, the filler opening of described relief valve is provided with pressure measuring tie-in;
Further, described ram's horns is provided with the pressure regulation ball valve;
Further, described main oil pipe is provided with the maintenance ball valve.
The beneficial effects of the utility model are:
Multi-cylinder diffluence motor synchroballistic hydraulic system of the present utility model is by arranging repairing pressure limiting control valve piece, and at spill pipe relief valve is set, the filler opening of relief valve links to each other with each ram's horns respectively by a plurality of one-way valve I, the multi-cylinder diffluence motor synchroballistic hydraulic system that is model utility is carried out synchroballistic by a relief valve, overcome the poor defective of existing diffluence motor synchroballistic hydraulic system net synchronization capability, and when regulation relief valve pressure, need not need to before dispatching from the factory, mix up such as the relief valve of existing diffluence motor synchroballistic hydraulic system, multi-cylinder diffluence motor synchroballistic hydraulic system of the present utility model can be regulated easily at engineering site the pressure limiting pressure of a unique relief valve, just can realize the synchroballistic function, and offset load resistance is strong, and net synchronization capability is good;
By in repairing pressure limiting control valve piece, the repairing pipe being set, and the repairing pipe linked to each other with each ram's horns by a plurality of one-way valve II, when certain diffluence motor distribution chamber produces " inhaling empty " phenomenon, one-way valve II corresponding on the repairing pipe will open, carry out repairing, prevent that " inhaling empty " phenomenon from occuring, and by be provided with the return tube one-way valve at return tube, can regulate oil compensation pressure.
Description of drawings
Fig. 1 is the schematic representation of existing diffluence motor synchroballistic hydraulic system;
Fig. 2 is the utility model multi-cylinder diffluence motor synchroballistic hydraulic system embodiment's hydraulic diagram.
Description of reference numerals:
The 1-main oil pipe; The 2-return tube; The 3-oil hydraulic cylinder; The 4-diffluence motor; The 5-ram's horns; The 6-spill pipe; 7-repairing pipe; The 8-relief valve; 9-one-way valve I; 10-one-way valve II; 11-return tube one-way valve; The 12-Pilot operated check valve; The 13-electro-hydraulic reversing valve; The 14-one-way throttle valve; The 15-one-way throttle valve; The 16-one way pressure-reducing valve; The 17-solenoid directional control valve; The 18-pressure measuring tie-in; 19-pressure regulation ball valve; 20-overhauls ball valve.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
As shown in Figure 2, be the utility model multi-cylinder diffluence motor synchroballistic hydraulic system embodiment's hydraulic diagram.
The multi-cylinder diffluence motor synchroballistic hydraulic system of present embodiment, comprise main oil pipe 1, return tube 2, at least two oil hydraulic cylinders 3 and with oil hydraulic cylinder 3 diffluence motor 4 of corresponding setting one by one, link to each other by ram's horns 5 between diffluence motor 4 and the oil hydraulic cylinder 3, be provided with repairing pressure limiting control valve piece between diffluence motor 4 and the oil hydraulic cylinder 3, repairing pressure limiting control valve piece comprises and is spill pipe 6 and the repairing pipe 7 that is arranged in parallel.Spill pipe 6 is provided with relief valve 8, and the filler opening of relief valve 8 links to each other with ram's horns 5 by one-way valve I 9, and one-way valve I 9 and one by one corresponding setting of ram's horns 5.Repairing pipe 7 links to each other with ram's horns 5 by one-way valve II 10, and one-way valve II 10 and one by one corresponding setting of ram's horns 5.Spill pipe 6 all links to each other with return tube 2 with repairing pipe 7, and return tube 2 is provided with return tube one-way valve 11.
The multi-cylinder diffluence motor synchroballistic hydraulic system of present embodiment is by arranging repairing pressure limiting control valve piece, and at spill pipe 6 relief valve 8 is set, the filler opening of relief valve 8 links to each other with each ram's horns 5 respectively by a plurality of one-way valve I 9, the multi-cylinder diffluence motor synchroballistic hydraulic system that is present embodiment is carried out synchroballistic by a relief valve 8, overcome the poor defective of existing diffluence motor synchroballistic hydraulic system net synchronization capability, and when regulation relief valve 8 pressure, need not need to before dispatching from the factory, mix up such as the relief valve of existing diffluence motor synchroballistic hydraulic system, the multi-cylinder diffluence motor synchroballistic hydraulic system of present embodiment can be regulated easily at engineering site the pressure limiting pressure of a unique relief valve 8, just can realize the synchroballistic function, and offset load resistance is strong, and net synchronization capability is good.
By in repairing pressure limiting control valve piece, repairing pipe 7 being set, and repairing pipe 7 linked to each other with each ram's horns by a plurality of one-way valve II 10, when certain diffluence motor distribution chamber produces " inhaling empty " phenomenon, one-way valve II 10 corresponding on the repairing pipe 7 will open, carry out repairing, prevent that " inhaling empty " phenomenon from occuring, by being provided with return tube one-way valve 11 at return tube 2, the have an appointment cracking pressure of 5bar of return tube one-way valve 11 is for repairing creates conditions.
Further, the multi-cylinder diffluence motor synchroballistic hydraulic system of present embodiment also comprises cylinder side valve piece, described cylinder side valve piece comprises the Pilot operated check valve 12 that links to each other with oil hydraulic cylinder 3, Pilot operated check valve 12 is arranged on the ram's horns 5, holding position when Pilot operated check valve 12 is used for oil hydraulic cylinder 3 off-position, oil hydraulic cylinder 3 unstabilitys in the time of also can preventing pipeline breaking.
Further, the multi-cylinder diffluence motor synchroballistic hydraulic system of present embodiment also comprises speed governing reversing control valve platform, speed governing reversing control valve platform comprises electro-hydraulic reversing valve 13, two oil outlets of electro-hydraulic reversing valve 13 link to each other with the rod chamber of diffluence motor 4 with oil hydraulic cylinder 3 respectively, two filler openings of electro-hydraulic reversing valve 13 link to each other with return tube 2 with main oil pipe 1 respectively, and the piston that speed governing reversing control valve platform can regulator solution cylinder pressure 3 stretches out or retracts.Preferably, be provided with between electro-hydraulic reversing valve 13 and the diffluence motor 4 for control oil hydraulic cylinder 3 stretch out one-way throttle valve 14 and the one-way throttle valve 15 of speed and retraction speed.The one way pressure-reducing valve 16 of rod chamber decompression when preferably, being provided with for oil hydraulic cylinder 3 retraction between electro-hydraulic reversing valve 13 and the oil hydraulic cylinder 3.Preferably, the speed governing reversing control valve platform of present embodiment also comprises the solenoid directional control valve 17 that links to each other with Pilot operated check valve 12, is used for the hydraulic control mouth of the Pilot operated check valve 12 of control cylinder side valve piece, can make Pilot operated check valve 12 reverse openings.
Further, the filler opening of relief valve 8 is provided with pressure measuring tie-in 18, setting pressure for detection of relief valve 8, preferably, ram's horns 5 is provided with pressure regulation ball valve 19, when needs regulation relief valve setting pressure, closes pressure regulation ball valve 19, measure the setting pressure of relief valve 8 by pressure measuring tie-in 18, adjust the pressure of relief valve 8 to setting value.
Further, main oil pipe 1 is provided with maintenance ball valve 20, and maintenance ball valve 20 cuts off main oil pipe 1 oil circuit when being used for repair and maintenance.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (9)
1. multi-cylinder diffluence motor synchroballistic hydraulic system, comprise main oil pipe, return tube, at least two oil hydraulic cylinders and with the oil hydraulic cylinder diffluence motor of corresponding setting one by one, link to each other by ram's horns between described diffluence motor and the oil hydraulic cylinder, it is characterized in that: be provided with repairing pressure limiting control valve piece between described diffluence motor and the oil hydraulic cylinder, described repairing pressure limiting control valve piece comprises and is spill pipe and the repairing pipe that is arranged in parallel; Described spill pipe is provided with relief valve, and the filler opening of described relief valve links to each other with ram's horns by one-way valve I, and one-way valve I and one by one corresponding setting of ram's horns; Described repairing pipe links to each other with ram's horns by one-way valve II, and one-way valve II and one by one corresponding setting of ram's horns; Described spill pipe links to each other with repairing Guan Junyu return tube, and return tube is provided with the return tube one-way valve.
2. multi-cylinder diffluence motor synchroballistic hydraulic system according to claim 1, it is characterized in that: also comprise cylinder side valve piece, described cylinder side valve piece comprises the Pilot operated check valve that links to each other with oil hydraulic cylinder, and described Pilot operated check valve is arranged on the ram's horns.
3. multi-cylinder diffluence motor synchroballistic hydraulic system according to claim 2, it is characterized in that: also comprise speed governing reversing control valve platform, described speed governing reversing control valve platform comprises electro-hydraulic reversing valve, two oil outlets of described electro-hydraulic reversing valve link to each other with the rod chamber of diffluence motor and oil hydraulic cylinder respectively, and two filler openings of electro-hydraulic reversing valve link to each other with return tube with main oil pipe respectively.
4. multi-cylinder diffluence motor synchroballistic hydraulic system according to claim 3 is characterized in that: be provided with between described electro-hydraulic reversing valve and the diffluence motor for the control oil hydraulic cylinder and stretch out two one-way throttle valves of speed and retraction speed.
5. multi-cylinder diffluence motor synchroballistic hydraulic system according to claim 4 is characterized in that: the one way pressure-reducing valve that is provided with rod chamber decompression when retracting for oil hydraulic cylinder between described electro-hydraulic reversing valve and the oil hydraulic cylinder.
6. multi-cylinder diffluence motor synchroballistic hydraulic system according to claim 5, it is characterized in that: described speed governing reversing control valve platform also comprises the solenoid directional control valve that links to each other with Pilot operated check valve.
7. each described multi-cylinder diffluence motor synchroballistic hydraulic system according to claim 1-6, it is characterized in that: the filler opening of described relief valve is provided with pressure measuring tie-in.
8. each described multi-cylinder diffluence motor synchroballistic hydraulic system according to claim 1-6, it is characterized in that: described ram's horns is provided with the pressure regulation ball valve.
9. each described multi-cylinder diffluence motor synchroballistic hydraulic system according to claim 1-6, it is characterized in that: described main oil pipe is provided with the maintenance ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220323206 CN202673808U (en) | 2012-07-05 | 2012-07-05 | Multi-cylinder diffluence motor synchronous compensation hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220323206 CN202673808U (en) | 2012-07-05 | 2012-07-05 | Multi-cylinder diffluence motor synchronous compensation hydraulic system |
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| CN202673808U true CN202673808U (en) | 2013-01-16 |
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| CN 201220323206 Expired - Lifetime CN202673808U (en) | 2012-07-05 | 2012-07-05 | Multi-cylinder diffluence motor synchronous compensation hydraulic system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341601A (en) * | 2013-06-24 | 2013-10-09 | 中冶赛迪工程技术股份有限公司 | Clamping pressure regulation hydraulic control system for broad edge of crystallizer of slab caster |
| CN103452929A (en) * | 2013-09-03 | 2013-12-18 | 中国重型机械研究院股份公司 | Hydraulic synchronous control mechanism with compensating function |
| CN104846870A (en) * | 2015-05-25 | 2015-08-19 | 安徽宏昌机电装备制造有限公司 | Safety speed limiting device of working arm of excavating loader |
| CN106678129A (en) * | 2017-02-28 | 2017-05-17 | 重庆迪马工业有限责任公司 | Automatic extending-and-contracting control hydraulic system and control circuit for police service platform |
| CN106958546A (en) * | 2017-04-17 | 2017-07-18 | 燕山大学 | Numeric type hydraulic transformer |
| CN107477037A (en) * | 2017-09-22 | 2017-12-15 | 中国重型机械研究院股份公司 | A kind of heavy aluminium stretching-machine bit synchronous clamping device and method |
| CN108317123A (en) * | 2018-04-02 | 2018-07-24 | 徐州九益科技有限公司 | A kind of hydraulic synchronization diffluence motor with unloading function |
| CN108980127A (en) * | 2018-09-05 | 2018-12-11 | 北京特种机械研究所 | A kind of three cylinder synchronous hydraulic control loops |
| CN110328782A (en) * | 2019-07-29 | 2019-10-15 | 杭州方圆塑机股份有限公司 | Foamed plastics automatic moulding machine quick exchange die bed self-adapting locking mechanism |
| CN110578727A (en) * | 2019-09-25 | 2019-12-17 | 张家口凯航液压科技有限公司 | load-sensitive multi-cylinder synchronous control method |
-
2012
- 2012-07-05 CN CN 201220323206 patent/CN202673808U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341601A (en) * | 2013-06-24 | 2013-10-09 | 中冶赛迪工程技术股份有限公司 | Clamping pressure regulation hydraulic control system for broad edge of crystallizer of slab caster |
| CN103452929A (en) * | 2013-09-03 | 2013-12-18 | 中国重型机械研究院股份公司 | Hydraulic synchronous control mechanism with compensating function |
| CN103452929B (en) * | 2013-09-03 | 2016-04-13 | 中国重型机械研究院股份公司 | A kind of hydraulic synchronization control mechanism with compensation |
| CN104846870A (en) * | 2015-05-25 | 2015-08-19 | 安徽宏昌机电装备制造有限公司 | Safety speed limiting device of working arm of excavating loader |
| CN106678129B (en) * | 2017-02-28 | 2018-08-17 | 重庆迪马工业有限责任公司 | Automatic telescopic for police service platform controls hydraulic system and control circuit |
| CN106678129A (en) * | 2017-02-28 | 2017-05-17 | 重庆迪马工业有限责任公司 | Automatic extending-and-contracting control hydraulic system and control circuit for police service platform |
| CN106958546A (en) * | 2017-04-17 | 2017-07-18 | 燕山大学 | Numeric type hydraulic transformer |
| CN106958546B (en) * | 2017-04-17 | 2018-04-06 | 燕山大学 | Numeric type hydraulic transformer |
| CN107477037A (en) * | 2017-09-22 | 2017-12-15 | 中国重型机械研究院股份公司 | A kind of heavy aluminium stretching-machine bit synchronous clamping device and method |
| CN107477037B (en) * | 2017-09-22 | 2019-09-24 | 中国重型机械研究院股份公司 | A kind of heavy type aluminium stretching-machine bit synchronous clamping device and method |
| CN108317123A (en) * | 2018-04-02 | 2018-07-24 | 徐州九益科技有限公司 | A kind of hydraulic synchronization diffluence motor with unloading function |
| CN108980127A (en) * | 2018-09-05 | 2018-12-11 | 北京特种机械研究所 | A kind of three cylinder synchronous hydraulic control loops |
| CN110328782A (en) * | 2019-07-29 | 2019-10-15 | 杭州方圆塑机股份有限公司 | Foamed plastics automatic moulding machine quick exchange die bed self-adapting locking mechanism |
| CN110578727A (en) * | 2019-09-25 | 2019-12-17 | 张家口凯航液压科技有限公司 | load-sensitive multi-cylinder synchronous control method |
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Granted publication date: 20130116 |
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