CN102758421A - Synchronous split-type hydraulic hoist - Google Patents
Synchronous split-type hydraulic hoist Download PDFInfo
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- CN102758421A CN102758421A CN2011101062124A CN201110106212A CN102758421A CN 102758421 A CN102758421 A CN 102758421A CN 2011101062124 A CN2011101062124 A CN 2011101062124A CN 201110106212 A CN201110106212 A CN 201110106212A CN 102758421 A CN102758421 A CN 102758421A
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Abstract
The invention discloses a synchronous split-type hydraulic hoist, relating to the field of the structure of a gate hoisting device. The synchronous split-type hydraulic hoist comprises two oil cylinders and a hydraulic system, and each oil cylinder comprises a cylinder barrel, a piston and a piston rod; the hydraulic system comprises an oil path valve block, a three-position four-way electromagnetic directional valve and two groups of two-position four-way electromagnetic proportional directional valves are arranged on the oil path valve block, the oil inlets P of the two groups of two-position four-way electromagnetic proportional directional valves are respectively connected with the working port A of the three-position four-way electromagnetic directional valve, and the working ports B of each group of the two-position four-way electromagnetic proportional directional valves are connected with the main oil return port of the oil path valve block respectively; and a support is connected to one end of each piston rod away from each piston, a displacement sensor is connected at the outer side of each cylinder barrel, the detection end of each displacement sensor is arranged in the corresponding support in a penetrating manner, the signal output end of each displacement sensor is connected with the same programmable controller, and the programmable controller is connected with two of the two-position four-way electromagnetic proportional directional valves. The synchronous split-type hydraulic hoist disclosed by the invention is high in synchronization accuracy, flexible in hoisting, and stable in performance.
Description
Technical field
The present invention relates to the structure field of gate hoist.
Background technology
Split type hydraulic hoist is applicable to two Hanging Point Gate of various large, medium and small water conservancies, water station and municipal engineering, is made up of hydraulic power unit system and hydraulic jack two parts.Under electrical equipment control, change the oil circuit direction through driven by motor oil pump pressure oil output through overflow valve regulating system operating pressure, direction valve, the realization hydraulic jack is done axially reciprocating, drives gate and moves reciprocatingly, and reaches the purpose of unlatching, closed shutter.Split type hydraulic hoist hydraulic control valve adopts electromagnetic relief valve, choke valve, hydraulic control one-way valve, solenoid operated directional valve, solenoid-operated proportional reversal valve, compact conformation, advantage such as easy to maintenance.
Defective: during two suspension centre with two split type hydraulic hoists; Adopt the two-shipper double pump that pressure source is provided; Control two table oil cylinder workings by one group of 3-position 4-way solenoid operated directional valve; Receive factor affecting such as the oil cylinder accuracy of manufacture, tolerance dimension, oil cylinder speed can't guarantee synchronously or net synchronization capability poor, gate receives force unbalance yielding like this.
Summary of the invention
The objective of the invention is in order to overcome the deficiency of prior art, provide a kind of and have the synchronization accuracy height, open and close flexibly, the synchronous split type hydraulic hoist of stable performance.
The objective of the invention is to realize like this: synchronous split type hydraulic headstock gear; Comprise two oil cylinders and a hydraulic system; Said each oil cylinder comprises cylinder barrel, piston and piston rod respectively; Each piston is equipped with respectively in corresponding cylinder barrel, and each piston rod is set in respectively in the corresponding cylinder barrel, fixedlys connected with corresponding piston respectively in the rear end of each piston rod; Said hydraulic system comprises two motors; Every motor connects oil pump respectively; One end of every table oil pump connects same fuel tank respectively; The other end of every table oil pump connects total oil-in of same oil circuit valve piece respectively, and electromagnetic relief valve and 3-position 4-way solenoid directional control valve are set on the oil circuit valve piece, and the oil-feed P mouth of electromagnetic relief valve and the oil-feed P mouth of 3-position 4-way solenoid directional control valve are connected total oil-in of said oil circuit valve piece respectively; The oil return T mouth of electromagnetic relief valve and the oil return T mouth of 3-position 4-way solenoid directional control valve are connected total oil return opening of oil circuit valve piece respectively, and total oil return opening of oil circuit valve piece connects said fuel tank; The work A mouth of 3-position 4-way solenoid directional control valve is by the rod chamber of two first each oil cylinder of oil pipes connection, and the work B mouth of 3-position 4-way solenoid directional control valve connects the rodless cavity of each oil cylinder by two second oil pipes; Two groups of two-position four-way solenoid-operated proportional reversal valves also are set on the said oil circuit valve piece; The oil-feed P mouth of two groups of two-position four-way solenoid-operated proportional reversal valves is connected with the work A mouth of said 3-position 4-way solenoid directional control valve respectively, and the work B mouth of every group of two-position four-way solenoid-operated proportional reversal valve connects total oil return opening of said oil circuit valve piece respectively; Said each piston rod connects support respectively away from an end of piston; The outside of said each cylinder barrel connects displacement transducer respectively; The test side of each displacement transducer is set in respectively in the corresponding support; The signal output part of each displacement transducer connects same programmable controller, and programmable controller is connected with said two two-position four-way solenoid-operated proportional reversal valves.
Two hydraulic control one-way valves also are set on the oil circuit valve piece, and the oil-in of each hydraulic control one-way valve is connected with the work A mouth of 3-position 4-way solenoid operated directional valve respectively, and the oil-out of each hydraulic control one-way valve is connected with the end of each first oil pipe away from the rod chamber of oil cylinder respectively.
Two first throttle valves also are set on the oil circuit valve piece, and the oil-in of each first throttle valve is connected with the work B mouth of each two-position four-way solenoid-operated proportional switching-over respectively, and the delivery outlet of each first throttle valve is connected with total oil return opening of said oil circuit valve piece.
On the oil circuit valve piece second choke valve is set also; The oil-in of second choke valve connects the work A mouth of 3-position 4-way solenoid operated directional valve, two delivery outlets of second choke valve respectively with each bar asphalt channel on oil-in and the oil-feed P mouth of two-position four-way solenoid-operated proportional reversal valve of hydraulic control one-way valve be connected.
On the oil circuit valve piece the 3rd choke valve is set also, the oil-in of the 3rd choke valve connects the work B mouth of 3-position 4-way solenoid operated directional valve, and two delivery outlets of the 3rd choke valve are connected with the end of each second oil pipe away from the no chamber bar of each oil cylinder.
Oil cylinder when work, the oil return of rod chamber oil-feed rodless cavity, the oil return of rodless cavity oil-feed rod chamber, thus piston rod is stretched out or withdraw.When the oil return of rod chamber oil-feed rodless cavity, pressure oil gets into oil circuit valve piece from oil pump, gets into the P mouth of 3-position 4-way solenoid operated directional valve; The P of 3-position 4-way solenoid operated directional valve communicates with A, and B communicates with T, and pressure oil flows out from the A mouth of 3-position 4-way solenoid operated directional valve; Get into the oil-in of second choke valve, flow out, get into the oil-in of hydraulic control one-way valve separately respectively from the second choke valve oil-out; Flow out from the oil-out of hydraulic control one-way valve, get into the rod chamber that first oil pipe gets into oil cylinder again; The oil of the rodless cavity of two oil cylinders flows out from second oil pipe; Get into the oil-in of the 3rd choke valve respectively; Flow out from the oil-out of the 3rd choke valve; Get into the B mouth of 3-position 4-way solenoid operated directional valve,, thereby get back to total oil return opening of oil circuit valve piece because the B mouth of 3-position 4-way solenoid operated directional valve communicates with the T mouth.When the oil return of rodless cavity oil-feed rod chamber, pressure oil gets into the P mouth of 3-position 4-way solenoid operated directional valve, and the P mouth of 3-position 4-way solenoid operated directional valve communicates with the B mouth; The A mouth communicates with the T mouth; Pressure oil flows out from the B mouth of 3-position 4-way solenoid operated directional valve, gets into the oil-in of the 3rd choke valve, from the oil-out outflow of the 3rd choke valve; Get into second oil pipe separately, get into the rodless cavity of oil cylinder; The pressure oil of the rod chamber of two oil cylinders gets into first oil pipe; Because the pressure effect is connected the oil-out of hydraulic control one-way valve and oil-in, pressure oil flows out from the oil-in of hydraulic control one-way valve, gets into the oil-in of second choke valve respectively; Oil-out by second choke valve flows out; Get into the A mouth of 3-position 4-way solenoid operated directional valve,, thereby get back to total oil return opening of oil circuit valve piece because the A mouth of 3-position 4-way solenoid operated directional valve communicates with the T mouth.
Principle of Synchronic Control: the coil of connecting the 3-position 4-way solenoid operated directional valve during work respectively; Oil cylinder stretches out simultaneously or withdraws; Displacement transducer on every headstock gear accurately feeds back the displacement signal of telecommunication and gives programmable controller in the switch board, when two oil cylinders are asynchronous, is connected the coil of two-position four-way solenoid-operated proportional reversal valve automatically by the program that configures; The P mouth of two-position four-way solenoid-operated proportional reversal valve and B mouth are logical; The oil content trouble that flows out from second choke valve gets into two-position four-way solenoid-operated proportional reversal valve, gets into total oil return opening that the first throttle valve gets into oil circuit valve piece again, increases or reduce the cylinder rod chamber flow (when oil cylinder stretches out; The two-position four-way solenoid operated directional valve of slow cylinder branch road gets electric, and the rod chamber recirculating oil quantity increases.During the oil cylinder withdrawal, the two-position four-way solenoid operated directional valve of fast cylinder branch road gets electric, the rod chamber draining, oil inlet quantity reduces), the flow of rod chamber is equated, thereby reach the synchronous effect of automatic adjusting two oil cylinders.When two oil cylinders are synchronous, the coil of automatic disconnection two-position four-way solenoid-operated proportional reversal valve, the P mouth of two-position four-way solenoid-operated proportional reversal valve and A mouth are logical, and A mouth and T mouth are the sealing oilhole.
Description of drawings
Fig. 1 is the structural representation of hydraulic system of the present invention.
Fig. 2 is the vertical view among Fig. 1.
Fig. 3 is an A portion enlarged drawing among Fig. 2.
Fig. 4 is the left view among Fig. 1.
Fig. 5 is a B portion enlarged drawing among Fig. 4.
Fig. 6 is the structural representation of oil cylinder of the present invention.
Fig. 7 is a kind of schematic diagram of the present invention.
Among the figure, 1 motor, 2 oil pumps, 3 displacement transducers, 4 supports; 5 first throttle valves, 6 hydraulic control one-way valves, 7 fuel tanks, 8 first oil pipes, 9 second oil pipes; 10 oil circuit valve pieces, 11 electromagnetic relief valves, 12 two-position four-way solenoid-operated proportional reversal valves, 13 3-position 4-way solenoid operated directional valves, 14 oil cylinders; The 14-1 cylinder barrel, 14-2 piston rod, 15 second choke valves, 16 the 3rd choke valves.
The specific embodiment
Like Fig. 1,2,3,4,5, shown in 7; Hydraulic system comprises two motors 1; Every motor 1 connects oil pump 2 respectively; One end of every table oil pump 2 connects same fuel tank 7 respectively; The other end of every table oil pump 2 connects total oil-in of same oil circuit valve piece 10 respectively, and two first throttle valves 5, one second choke valve 15, one the 3rd choke valve 16, two hydraulic control one-way valves 6, electromagnetic relief valve 11, one group of 3-position 4-way solenoid operated directional valve 13 and two groups of two-position four-way solenoid-operated proportional reversal valves 12 are set on the oil circuit valve piece 10.The oil-feed P mouth of electromagnetic relief valve 11 and the oil-feed P mouth of 3-position 4-way solenoid operated directional valve 13 are connected total oil-in of valve piece 10 respectively; The oil return T mouth of electromagnetic relief valve 11 and the oil return T mouth of 3-position 4-way solenoid operated directional valve 13 are connected total oil return opening of valve piece 10 respectively, and total oil return opening of oil circuit valve piece 10 connects fuel tank 7.
The work A mouth of 3-position 4-way solenoid operated directional valve 13 connects the oil-in of second choke valve 15; Two delivery outlets of second choke valve 15 are bifurcated into two oil circuits, respectively with each bar asphalt channel on oil-in and the oil-feed P mouth of two-position four-way solenoid-operated proportional reversal valve 12 of hydraulic control one-way valve 6 be connected.The oil-out of each hydraulic control one-way valve 6 connects the rod chamber of the other end connection oil cylinder 14 of one first oil pipe, 8, the first oil pipes 8 respectively.The work B mouth of every group of two-position four-way solenoid-operated proportional reversal valve 12 connects the oil-in of first throttle valve 5 respectively, and the delivery outlet of each first throttle valve 5 is connected with total oil return opening of oil circuit valve piece 10 respectively.
The rodless cavity of two oil cylinders 14 connects one second oil pipe 9 respectively; The work B mouth of 3-position 4-way solenoid operated directional valve 13 connects the oil-in of the 3rd choke valve 16, and two delivery outlets of the 3rd choke valve 16 are connected with separately second oil pipe 9 end away from the no chamber bar of oil cylinder 14 respectively.
As shown in Figure 6, each oil cylinder 14 comprises cylinder barrel 14-1, piston and piston rod 14-2 respectively, and piston is equipped with in cylinder barrel 14-1; Piston rod 14-2 is set in the cylinder barrel 14-1; The rear end of piston rod 14-2 is fixedly connected with piston, and each piston rod 14-2 connects support 4 respectively away from an end of piston, and support 4 is arranged on outside the cylinder barrel 14-1; The outside of each cylinder barrel 14-1 connects displacement transducer 3 respectively; The test side of each displacement transducer 3 is set in respectively in the corresponding support 4, and the signal output part of each displacement transducer 3 connects same programmable controller, and programmable controller is connected with two two-position four-way solenoid-operated proportional reversal valves 12.
Synchronous split type hydraulic hoist is made up of two oil cylinders 14 and a hydraulic system.
As shown in Figure 7; When the flow of two oil cylinders 14 for a long time different; Displacement transducer 3 on the every table oil cylinder 14 accurately feedback displacement signals of telecommunication is given the programmable controllers of switch board, switches on and off the coil of two-position four-way solenoid-operated proportional reversal valve 12 automatically by the program that configures, and the total oil return opening that part oil is flowed to oil circuit valve piece 10 gets in the fuel tank 7 again; The flow of rod chamber is equated, thereby reach the synchronous effect of automatic adjusting two oil cylinders 14.
The present invention is not limited to above embodiment; When flow surpasses solenoid operated directional valve operate as normal allowed band; Can the 3-position 4-way solenoid operated directional valve 13 in the hydraulic system be changed to the 3-position 4-way electro-hydraulic reversing valve, two-position four-way solenoid-operated proportional reversal valve 12 is changed to the two-position four-way electro-hydraulic proportion reversing valve.
Claims (5)
1. synchronous split type hydraulic headstock gear; Comprise two oil cylinders and a hydraulic system; Said each oil cylinder comprises cylinder barrel, piston and piston rod respectively; Each piston is equipped with respectively in corresponding cylinder barrel, and each piston rod is set in respectively in the corresponding cylinder barrel, fixedlys connected with corresponding piston respectively in the rear end of each piston rod; Said hydraulic system comprises two motors; Every motor connects oil pump respectively; One end of every table oil pump connects same fuel tank respectively; The other end of every table oil pump connects total oil-in of same oil circuit valve piece respectively, and electromagnetic relief valve and 3-position 4-way solenoid directional control valve are set on the oil circuit valve piece, and the oil-feed P mouth of electromagnetic relief valve and the oil-feed P mouth of 3-position 4-way solenoid directional control valve are connected total oil-in of said oil circuit valve piece respectively; The oil return T mouth of electromagnetic relief valve and the oil return T mouth of 3-position 4-way solenoid directional control valve are connected total oil return opening of oil circuit valve piece respectively, and total oil return opening of oil circuit valve piece connects said fuel tank; The work A mouth of 3-position 4-way solenoid directional control valve is by the rod chamber of two first each oil cylinder of oil pipes connection, and the work B mouth of 3-position 4-way solenoid directional control valve connects the rodless cavity of each oil cylinder by two second oil pipes; It is characterized in that: two groups of two-position four-way solenoid-operated proportional reversal valves also are set on the said oil circuit valve piece; The oil-feed P mouth of two groups of two-position four-way solenoid-operated proportional reversal valves is connected with the work A mouth of said 3-position 4-way solenoid directional control valve respectively, and the work B mouth of every group of two-position four-way solenoid-operated proportional reversal valve connects total oil return opening of said oil circuit valve piece respectively; Said each piston rod connects support respectively away from an end of piston; The outside of said each cylinder barrel connects displacement transducer respectively; The test side of each displacement transducer is set in respectively in the corresponding support; The signal output part of each displacement transducer connects same programmable controller, and programmable controller is connected with said two two-position four-way solenoid-operated proportional reversal valves.
2. synchronous split type hydraulic hoist according to claim 1; It is characterized in that: on the said oil circuit valve piece two hydraulic control one-way valves are set also; The oil-in of each hydraulic control one-way valve is connected with the work A mouth of 3-position 4-way solenoid operated directional valve respectively, and the oil-out of each hydraulic control one-way valve is connected with the end of each first oil pipe away from the rod chamber of oil cylinder respectively.
3. synchronous split type hydraulic hoist according to claim 1; It is characterized in that: on the said oil circuit valve piece two first throttle valves are set also; The oil-in of each first throttle valve is connected with the work B mouth of each two-position four-way solenoid-operated proportional switching-over respectively, and the delivery outlet of each first throttle valve is connected with total oil return opening of said oil circuit valve piece.
4. synchronous split type hydraulic hoist according to claim 1 and 2; It is characterized in that: on the said oil circuit valve piece second choke valve is set also; The oil-in of second choke valve connects the work A mouth of 3-position 4-way solenoid operated directional valve, two delivery outlets of second choke valve respectively with each bar asphalt channel on oil-in and the oil-feed P mouth of two-position four-way solenoid-operated proportional reversal valve of hydraulic control one-way valve be connected.
5. synchronous split type hydraulic hoist according to claim 1; It is characterized in that: on the said oil circuit valve piece the 3rd choke valve is set also; The oil-in of the 3rd choke valve connects the work B mouth of 3-position 4-way solenoid operated directional valve, and two delivery outlets of the 3rd choke valve are connected with the end of each second oil pipe away from the no chamber bar of each oil cylinder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101062124A CN102758421A (en) | 2011-04-27 | 2011-04-27 | Synchronous split-type hydraulic hoist |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101062124A CN102758421A (en) | 2011-04-27 | 2011-04-27 | Synchronous split-type hydraulic hoist |
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| CN102758421A true CN102758421A (en) | 2012-10-31 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221499A (en) * | 2014-10-01 | 2016-01-06 | 杭州永济水利科技有限公司 | A kind of hydraulic control system of water conservancy hydraulic control multipurpose dam |
| CN107989853A (en) * | 2017-11-10 | 2018-05-04 | 河海大学常州校区 | A kind of hydraulic headstock gear remote online detecting system and detection method |
| CN108006013A (en) * | 2017-11-10 | 2018-05-08 | 河海大学常州校区 | A kind of hydraulic headstock gear on-line detecting system and detection method |
| CN108052071A (en) * | 2018-02-07 | 2018-05-18 | 山西金瑞高压环件有限公司 | A kind of numerical control rolling machine folded arm servo-control system |
| CN108374808A (en) * | 2018-04-11 | 2018-08-07 | 安徽省万豪水坝节能技术有限公司 | A kind of gate oil electric controller and control system |
| CN108569312A (en) * | 2017-03-07 | 2018-09-25 | 中铁宝桥集团有限公司 | A kind of sky rail translation turnout turn-out track Hydraulic Double drive dynamic control device and control method |
| CN108930680A (en) * | 2018-09-30 | 2018-12-04 | 中色科技股份有限公司 | A kind of hydraulic control system and control method of two-way each speed regulation double hydraulic cylinder |
| CN110005423A (en) * | 2019-04-18 | 2019-07-12 | 中铁隧道局集团有限公司 | A method of adjustment hobboing cutter rock machine synthesis experiment platform promotes mainly power cylinder installation site |
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2011
- 2011-04-27 CN CN2011101062124A patent/CN102758421A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221499A (en) * | 2014-10-01 | 2016-01-06 | 杭州永济水利科技有限公司 | A kind of hydraulic control system of water conservancy hydraulic control multipurpose dam |
| CN105221499B (en) * | 2014-10-01 | 2017-04-12 | 浙江工业大学 | Hydraulic control system for water-conservancy hydraulically-controlled multi-purpose dam |
| CN108569312A (en) * | 2017-03-07 | 2018-09-25 | 中铁宝桥集团有限公司 | A kind of sky rail translation turnout turn-out track Hydraulic Double drive dynamic control device and control method |
| CN107989853A (en) * | 2017-11-10 | 2018-05-04 | 河海大学常州校区 | A kind of hydraulic headstock gear remote online detecting system and detection method |
| CN108006013A (en) * | 2017-11-10 | 2018-05-08 | 河海大学常州校区 | A kind of hydraulic headstock gear on-line detecting system and detection method |
| CN108052071A (en) * | 2018-02-07 | 2018-05-18 | 山西金瑞高压环件有限公司 | A kind of numerical control rolling machine folded arm servo-control system |
| CN108052071B (en) * | 2018-02-07 | 2024-03-26 | 山西金瑞高压环件有限公司 | Numerical control ring rolling machine arm-holding servo control system |
| CN108374808A (en) * | 2018-04-11 | 2018-08-07 | 安徽省万豪水坝节能技术有限公司 | A kind of gate oil electric controller and control system |
| CN108930680A (en) * | 2018-09-30 | 2018-12-04 | 中色科技股份有限公司 | A kind of hydraulic control system and control method of two-way each speed regulation double hydraulic cylinder |
| CN110005423A (en) * | 2019-04-18 | 2019-07-12 | 中铁隧道局集团有限公司 | A method of adjustment hobboing cutter rock machine synthesis experiment platform promotes mainly power cylinder installation site |
| CN110005423B (en) * | 2019-04-18 | 2020-11-17 | 中铁隧道局集团有限公司 | Method for adjusting installation position of main thrust oil cylinder of hob rock machine comprehensive experiment platform |
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Application publication date: 20121031 |