CN204079348U - A kind of electrohydraulic proportional control valve group for hydraulic wireline winch - Google Patents
A kind of electrohydraulic proportional control valve group for hydraulic wireline winch Download PDFInfo
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- CN204079348U CN204079348U CN201420358432.5U CN201420358432U CN204079348U CN 204079348 U CN204079348 U CN 204079348U CN 201420358432 U CN201420358432 U CN 201420358432U CN 204079348 U CN204079348 U CN 204079348U
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Abstract
The utility model discloses a kind of electrohydraulic proportional control valve group for hydraulic wireline winch, belong to valve group field.The electrohydraulic proportional control valve group of described hydraulic wireline winch comprises: safety valve, balance cock and electro-hydraulic proportion reversing valve, the A mouth of electro-hydraulic proportion reversing valve is communicated with the oil inlet of balance cock, the oil outlet of balance cock, the oil inlet of safety valve and the A mouth of motor are interconnected, the B mouth of motor, the oil outlet of safety valve, the control port of balance cock and the B mouth of electro-hydraulic proportion reversing valve are interconnected, valve group also comprises: electro-hydraulic proportional throttle valve and repairing fuel tank, the import of electro-hydraulic proportional throttle valve and the A mouth of motor are interconnected, the outlet of electro-hydraulic proportional throttle valve and the T mouth of electro-hydraulic proportion reversing valve are interconnected, B mouth and the repairing fuel tank of motor are interconnected.This valve group, by arranging electric proportional throttle valve, makes this valve group have the function of emergency flight control.
Description
Technical field
The utility model relates to valve group field, particularly a kind of electrohydraulic proportional control valve group for hydraulic wireline winch.
Background technology
Hydraulic wireline winch is device important on platform, and it adopts electro-hydraulic proportional control system to control mostly.
The control system of existing hydraulic wireline winch adopts main proportional reversing valve, balance cock usually together with safety valve, realizes irrelevant without step velocity and switch operation function with load.
Realizing in process of the present utility model, designer finds that prior art at least exists following problem:
When existing hydraulic wireline winch control system in the course of the work, arbitrary element breaks down, the load on hydraulic wireline winch is made to be in unsafe position, and the control system of hydraulic wireline winch is not because having emergency flight control function, in time load can not be placed on perch, have impact on the safety of the control system of hydraulic wireline winch.
Utility model content
In order to solve the problem of control system without emergency flight control function of hydraulic wireline winch of the prior art, the utility model embodiment provides a kind of electrohydraulic proportional control valve group for hydraulic wireline winch.Described technical scheme is as follows:
The utility model embodiment provides a kind of electrohydraulic proportional control valve group for hydraulic wireline winch, and be applicable to the motor controlling described hydraulic wireline winch, described valve group comprises: safety valve, balance cock and electro-hydraulic proportion reversing valve.The A mouth of described electro-hydraulic proportion reversing valve is communicated with the oil inlet of described balance cock, the A mouth of the oil outlet of described balance cock, the oil inlet of described safety valve and motor is interconnected, the B mouth of described motor, the oil outlet of described safety valve, the control port of described balance cock and the B mouth of described electro-hydraulic proportion reversing valve are interconnected, and the outlet of described electro-hydraulic proportional throttle valve and the T mouth of described electro-hydraulic proportion reversing valve are interconnected.
Described valve group also comprises: electro-hydraulic proportional throttle valve and repairing fuel tank, the import of described electro-hydraulic proportional throttle valve and the A mouth of described motor are interconnected, the outlet of described electro-hydraulic proportional throttle valve and the T mouth of described electro-hydraulic proportion reversing valve are interconnected, and B mouth and the described repairing fuel tank of described motor are interconnected.
Further, described electrohydraulic proportional control valve group also comprises switch electromagnetic valve, and the oil inlet of described switch electromagnetic valve is communicated with the oil inlet of described electro-hydraulic proportional throttle valve, and the oil outlet of described switch electromagnetic valve is communicated with the oil outlet of described electro-hydraulic proportional throttle valve.
Further, the oil inlet of described switch electromagnetic valve is provided with manual throttle valve.
Particularly, described electrohydraulic proportional control valve group also comprises repairing check valve, and the oil inlet of described repairing check valve is communicated with described repairing fuel tank, and the oil outlet of described repairing check valve and the B mouth of described motor are interconnected.
Further, described electrohydraulic proportional control valve group also comprises the first shuttle valve, reducing valve and the first by pass valve, the oil outlet of described reducing valve is communicated with the P mouth of described electro-hydraulic proportion reversing valve, the A mouth of described electro-hydraulic proportion reversing valve is communicated with two oil inlets of described first shuttle valve respectively with B mouth, the oil outlet of described first shuttle valve is interconnected with the oil inlet of described first by pass valve and the control port of described reducing valve respectively, and the oil outlet of described first by pass valve is communicated with the T mouth of described electro-hydraulic proportion reversing valve.
Particularly, the control port of described balance cock is provided with one-way throttle valve, described one-way throttle valve is formed in parallel by first throttle valve and the first check valve, and the oil inlet of described first check valve is communicated with the control port of described balance cock.
Further, second throttle is provided with between described balance cock and described one-way throttle valve.
Particularly, described electro-hydraulic proportion reversing valve is 3-position 4-way electro-hydraulic proportion reversing valve.
Particularly, be provided with the second check valve between the oil inlet of described balance cock and oil outlet, the oil inlet of described second check valve is communicated with the oil inlet of described balance cock.
Further, the P mouth of described electro-hydraulic proportion reversing valve is communicated with described hydraulic pressure delivery side of pump.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is: the electrohydraulic proportional control valve group for hydraulic wireline winch that the utility model embodiment provides, by arranging electric proportional throttle valve between motor and return opening, make when arbitrary element failure in electrohydraulic proportional control valve group, fluid can flow through by the A mouth of motor the return opening that electric proportional throttle valve flow to valve group, motor can under the effect of load left-hand revolution, load is controllably placed into safe position, electrohydraulic proportional control valve group is made to have the function of emergency flight control, improve the safety of the electrohydraulic proportional control valve group of hydraulic wireline winch.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the electrohydraulic proportional control valve group that the utility model embodiment provides.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Embodiment
The utility model embodiment provides a kind of electrohydraulic proportional control valve group for hydraulic wireline winch, is applicable to the motor of hydraulic control winch, and as shown in Figure 1, this valve group comprises: safety valve 2, balance cock 3, electro-hydraulic proportion reversing valve 1.
The A mouth of electro-hydraulic proportion reversing valve 1 is communicated with the oil inlet of balance cock 3, the A mouth of the oil outlet of balance cock 3, the oil inlet of safety valve 2 and motor 6 is interconnected, and the B mouth of motor 6, the oil outlet of safety valve 2, the control port of balance cock 3 and the B mouth of electro-hydraulic proportion reversing valve 1 are interconnected.The T mouth of electro-hydraulic proportion reversing valve 1 can be communicated with the oil return inlet T 1 of this valve group, and the P mouth of electro-hydraulic proportion reversing valve 1 can be communicated with the oil inlet P 1 of this valve group.
This valve group also comprises: electro-hydraulic proportional throttle valve 4 and repairing fuel tank 5, the import of electro-hydraulic proportional throttle valve 4 and the A mouth of motor 6 are interconnected, electro-hydraulic proportional throttle valve 4 exports and is interconnected with the T mouth of electro-hydraulic proportion reversing valve 1, and B mouth and the repairing fuel tank 5 of motor 6 are interconnected.
Further, this electrohydraulic proportional control valve group can also comprise switch electromagnetic valve 7, and the oil inlet of this switch electromagnetic valve 7 is communicated with the oil inlet of electro-hydraulic proportional throttle valve 4, and the oil outlet of switch electromagnetic valve 7 is communicated with the oil outlet of electro-hydraulic proportional throttle valve 4.When electric proportional throttle valve 4 breaks down, when needing emergency flight control load to be placed to perch, DT4 on switch electromagnetic valve 7 obtains electric, the fluid of the A mouth of motor 6 flows into the import of switch electromagnetic valve 7, flowed into the oil return inlet T 1 of this valve group again by the outlet of switch electromagnetic valve 7, thus load is controllably placed into safe position.
Further, the oil inlet of switch electromagnetic valve 7 can be provided with manual throttle valve 8.When electric proportional throttle valve 4 breaks down, switch electromagnetic valve 7 obtains electric, and manual throttle valve 8 keeps certain opening, and load also can be realized controllably to be placed into safe position, achieves the Redundancy Design to emergency flight control.Manual throttle valve 8 controllable flow through the flow of the fluid of switch electromagnetic valve 7 and flow velocity, and then controls the speed of motor 6 left-hand revolution.
Particularly, electrohydraulic proportional control valve group can also comprise repairing check valve 9, the oil inlet of repairing check valve 9 is communicated with repairing fuel tank 5, and the oil outlet of repairing check valve 9 is interconnected with the B mouth of the B mouth of motor 6, the oil outlet of safety valve 2, the control port of balance cock 3 and electro-hydraulic proportion reversing valve 1 respectively.This repairing check valve 9 allows the fluid in repairing fuel tank 5 to flow out, and does not allow fluid reverse reflux in repairing fuel tank 5.
Further, this electrohydraulic proportional control valve group can also comprise the first shuttle valve 10, reducing valve 12 and the first by pass valve 11, the oil outlet of reducing valve 12 is communicated with the P mouth of electro-hydraulic proportion reversing valve 1, the A mouth of electro-hydraulic proportion reversing valve 1 is communicated with two oil inlets of the first shuttle valve 10 respectively with B mouth, the oil outlet of the first shuttle valve 10 is interconnected with the oil inlet of the first by pass valve 11 and the control port of reducing valve 12 respectively, and the oil outlet of the first by pass valve 11 is communicated with the T mouth of electro-hydraulic proportion reversing valve 1.Wherein, the import of reducing valve 12 can be communicated with the oil inlet P 1 of this valve group.
Wherein, reducing valve 12, first by pass valve 11, electro-hydraulic proportion reversing valve 1 and the first shuttle valve 10 form one two logical pressure compensator, namely pressure change but electro-hydraulic proportion reversing valve 1 export flow constant, for ensureing that electro-hydraulic proportion reversing valve group delivery rate is only relevant with the valve core opening size of electro-hydraulic proportion reversing valve 1, the valve core opening size of electro-hydraulic proportion reversing valve 1, stepless change is realized under the effect of the cable laying proportion electro-magnet DT2 on electro-hydraulic proportion reversing valve 1 or take-up proportion electro-magnet DT3, stepless change is there is in the flow that electro-hydraulic proportion reversing valve group exports along with the stepless change of the valve core opening of electro-hydraulic proportion reversing valve 1.
Particularly, the control port of balance cock 3 is provided with one-way throttle valve, this one-way throttle valve is formed in parallel by first throttle valve 13 and the first check valve 14, the oil inlet of this first check valve 14 is communicated with the control port of balance cock 3, and the oil outlet of this first check valve 14 is communicated with the B mouth of electro-hydraulic proportion reversing valve 1.This one-way throttle valve is for controlling the flow direction of fluid, flow and flow velocity.
Further, second throttle 15 is provided with between balance cock 3 and one-way throttle valve.Second throttle 15 is for controlling flow and the flow velocity of fluid.
Particularly, electro-hydraulic proportion reversing valve 1 is 3-position 4-way electro-hydraulic proportion reversing valve.
Particularly, the oil inlet being provided with the second check valve 16, second check valve 16 between the oil inlet of balance cock 3 and oil outlet is communicated with the oil inlet of balance cock 3.This second check valve 16 is for ensureing that between the oil inlet of balance cock 3 and oil outlet, oil flow is stablized.
Particularly, the P mouth of electro-hydraulic proportion reversing valve 1 can be communicated with the mouth of Hydraulic Pump 17, and namely the P mouth of electro-hydraulic proportion reversing valve 1 is communicated with the oil inlet P 1 of this valve group, and the oil inlet P 1 of valve group is communicated with the mouth of Hydraulic Pump 17.This Hydraulic Pump 17 can provide power driven for electrohydraulic proportional control valve group.
Simply introduce the principle of work of the electrohydraulic proportional control valve group for hydraulic wireline winch that the utility model embodiment provides below:
When normal running hydraulic wireline winch, the electromagnet DT1 of electricity proportional throttle valve 4 and switch electromagnet DT4 must not be electric, cable laying proportion electro-magnet DT2 on electro-hydraulic proportion reversing valve 1 or take-up proportion electro-magnet DT3 obtains electric, carries out the take-up of hydraulic wireline winch or the normal running of cable laying.
Electro-hydraulic proportion reversing valve 1 in the process of normal running hydraulic wireline winch, when arbitrary element in balance cock 2 and safety valve 2 breaks down, and load is in unsafe position, emergency flight control load is needed to be placed to perch, now, DT1 obtains electric, the fluid of the A mouth of motor 6 is entered the import of electro-hydraulic proportional throttle valve 4 by this mouthful, after being flowed out by the outlet of electro-hydraulic proportional throttle valve 4, flow into the oil return inlet T 1 of this valve group, make motor 6 left-hand revolution under the effect of load, and repairing fuel tank 5 is the timely fuel feeding of B mouth of motor 6, load is controllably placed into safe position, the openings of sizes of electric proportional throttle valve 4 can be changed by the electric current input size of DT1, the speed that control load is placed.
When electric proportional throttle valve 4 breaks down, when needing emergency flight control load to be placed to perch, DT4 obtains electric, manual throttle valve 8 keeps certain opening, the fluid of the A mouth of motor 6 flows through manual throttle valve 8 via this mouth, flow into the import of switch electromagnetic valve 7, the oil return inlet T 1 of this valve group is flowed into again by the outlet of switch electromagnetic valve 7, now, motor 6 is left-hand revolution under the effect of load, load is reliably placed into safe position, by regulating the openings of sizes of manual throttle valve 8, can the control load speed of placing.Manual throttle valve 8 and switch electromagnetic valve 9 achieve the Redundancy Design of the emergency flight control to electric proportional throttle valve 7, and this Redundancy Design is simple and reliable.
The electrohydraulic proportional control valve group for hydraulic wireline winch that the utility model embodiment provides, by arranging electric proportional throttle valve between motor and return opening, make when arbitrary element failure in electrohydraulic proportional control valve group, fluid can flow through by the A mouth of motor the return opening that electric proportional throttle valve flow to valve group, motor can under the effect of load left-hand revolution, load is controllably placed into safe position, make electrohydraulic proportional control valve group have the function of emergency flight control, improve the safety of the electrohydraulic proportional control valve group of hydraulic wireline winch.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. for an electrohydraulic proportional control valve group for hydraulic wireline winch, be applicable to the motor controlling described hydraulic wireline winch, described valve group comprises: safety valve, balance cock and electro-hydraulic proportion reversing valve,
The A mouth of described electro-hydraulic proportion reversing valve is communicated with the oil inlet of described balance cock, the A mouth of the oil outlet of described balance cock, the oil inlet of described safety valve and motor is interconnected, the B mouth of described motor, the oil outlet of described safety valve, the control port of described balance cock and the B mouth of described electro-hydraulic proportion reversing valve are interconnected, it is characterized in that
Described valve group also comprises: electro-hydraulic proportional throttle valve and repairing fuel tank, the import of described electro-hydraulic proportional throttle valve and the A mouth of described motor are interconnected, the outlet of described electro-hydraulic proportional throttle valve and the T mouth of described electro-hydraulic proportion reversing valve are interconnected, and B mouth and the described repairing fuel tank of described motor are interconnected.
2. electrohydraulic proportional control valve group according to claim 1, it is characterized in that, described electrohydraulic proportional control valve group also comprises switch electromagnetic valve, the oil inlet of described switch electromagnetic valve is communicated with the oil inlet of described electro-hydraulic proportional throttle valve, and the oil outlet of described switch electromagnetic valve is communicated with the oil outlet of described electro-hydraulic proportional throttle valve.
3. electrohydraulic proportional control valve group according to claim 2, is characterized in that, the oil inlet of described switch electromagnetic valve is provided with manual throttle valve.
4. electrohydraulic proportional control valve group according to claim 1, it is characterized in that, described electrohydraulic proportional control valve group also comprises repairing check valve, and the oil inlet of described repairing check valve is communicated with described repairing fuel tank, and the oil outlet of described repairing check valve and the B mouth of described motor are interconnected.
5. the electrohydraulic proportional control valve group according to any one of claim 1-4, it is characterized in that, described electrohydraulic proportional control valve group also comprises the first shuttle valve, reducing valve and the first by pass valve, the oil outlet of described reducing valve is communicated with the P mouth of described electro-hydraulic proportion reversing valve, the A mouth of described electro-hydraulic proportion reversing valve is communicated with two oil inlets of described first shuttle valve respectively with B mouth, the oil outlet of described first shuttle valve is interconnected with the oil inlet of described first by pass valve and the control port of described reducing valve respectively, the oil outlet of described first by pass valve is communicated with the T mouth of described electro-hydraulic proportion reversing valve.
6. the valve group according to any one of claim 1-4, it is characterized in that, the control port of described balance cock is provided with one-way throttle valve, described one-way throttle valve is formed in parallel by first throttle valve and the first check valve, and the oil inlet of described first check valve is communicated with the control port of described balance cock.
7. valve group according to claim 6, is characterized in that, is provided with second throttle between described balance cock and described one-way throttle valve.
8. the valve group according to any one of claim 1-4, is characterized in that, described electro-hydraulic proportion reversing valve is 3-position 4-way electro-hydraulic proportion reversing valve.
9. the valve group according to any one of claim 1-4, is characterized in that, is provided with the second check valve between the oil inlet of described balance cock and oil outlet, and the oil inlet of described second check valve is communicated with the oil inlet of described balance cock.
10. the valve group according to any one of claim 1-4, is characterized in that, the P mouth of described electro-hydraulic proportion reversing valve is communicated with described hydraulic pressure delivery side of pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420358432.5U CN204079348U (en) | 2014-06-30 | 2014-06-30 | A kind of electrohydraulic proportional control valve group for hydraulic wireline winch |
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| CN201420358432.5U CN204079348U (en) | 2014-06-30 | 2014-06-30 | A kind of electrohydraulic proportional control valve group for hydraulic wireline winch |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927601A (en) * | 2016-05-19 | 2016-09-07 | 武汉船用机械有限责任公司 | Promotion hydraulic system |
| CN106629449A (en) * | 2016-10-08 | 2017-05-10 | 武汉船用机械有限责任公司 | Constant-tension hydraulic pressure control system |
| CN106884820A (en) * | 2015-12-16 | 2017-06-23 | 中国科学院沈阳自动化研究所 | A kind of storage winch hydraulic system |
| CN108105179A (en) * | 2017-11-09 | 2018-06-01 | 武汉船用机械有限责任公司 | A kind of hydraulic control system of Hawser winch |
| CN109132908A (en) * | 2018-08-14 | 2019-01-04 | 武汉船用机械有限责任公司 | A kind of winch control valve group having emergency release function |
| CN109592592A (en) * | 2019-01-04 | 2019-04-09 | 武汉船用机械有限责任公司 | The hydraulic control system of cable reel system |
| CN115388052A (en) * | 2022-10-28 | 2022-11-25 | 易初机械装备有限公司 | Electro-hydraulic control valve group for driving roller |
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2014
- 2014-06-30 CN CN201420358432.5U patent/CN204079348U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884820A (en) * | 2015-12-16 | 2017-06-23 | 中国科学院沈阳自动化研究所 | A kind of storage winch hydraulic system |
| CN106884820B (en) * | 2015-12-16 | 2018-04-06 | 中国科学院沈阳自动化研究所 | A kind of storage winch hydraulic system |
| CN105927601A (en) * | 2016-05-19 | 2016-09-07 | 武汉船用机械有限责任公司 | Promotion hydraulic system |
| CN106629449A (en) * | 2016-10-08 | 2017-05-10 | 武汉船用机械有限责任公司 | Constant-tension hydraulic pressure control system |
| CN108105179A (en) * | 2017-11-09 | 2018-06-01 | 武汉船用机械有限责任公司 | A kind of hydraulic control system of Hawser winch |
| CN109132908A (en) * | 2018-08-14 | 2019-01-04 | 武汉船用机械有限责任公司 | A kind of winch control valve group having emergency release function |
| CN109592592A (en) * | 2019-01-04 | 2019-04-09 | 武汉船用机械有限责任公司 | The hydraulic control system of cable reel system |
| CN115388052A (en) * | 2022-10-28 | 2022-11-25 | 易初机械装备有限公司 | Electro-hydraulic control valve group for driving roller |
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