CN102878142B - Constant-tension proportional hydraulic valve group - Google Patents
Constant-tension proportional hydraulic valve group Download PDFInfo
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- CN102878142B CN102878142B CN201210426201.9A CN201210426201A CN102878142B CN 102878142 B CN102878142 B CN 102878142B CN 201210426201 A CN201210426201 A CN 201210426201A CN 102878142 B CN102878142 B CN 102878142B
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Abstract
The invention discloses a constant-tension proportional hydraulic valve group which comprises a balance valve and a logical valve; an interface end A1 is arranged at one end of the balance valve and an oil port end A is arranged at the other end of the balance valve; an interface end B1 is arranged at one end of the logical valve and an oil port end B is arranged at the other end of the logical valve; the balance valve is connected with the logical valve through a pipeline; a main safety valve and a first shuttle valve are additionally connected between the balance valve and the logical valve; the main safety valve is communicated with the interface end B1; the first shuttle valve is communicated with the oil port end B; the first shuttle valve is communicated with one end of the second shuttle valve; the other end of the second shuttle valve is communicated with the interface end A1; the second shuttle valve is connected with an oil port end S; the first shuttle valve is additionally connected with an electromagnetic valve through a pipeline; a pilot safety valve is connected on the electromagnetic valve in parallel; the logical valve is communicated with a pipeline between the first shuttle valve and the electromagnetic valve; a throttle port is additionally connected on the electromagnetic valve; and the pilot safety valve is connected with a pressure testing point. The constant-tension proportional hydraulic valve group has the advantages that the university is strong, and larger coverage range can be achieved owing to the winch flow and the tension.
Description
Technical field
The present invention relates to a kind of ratio identical tension hydraulic valve bank being applicable to winch application.
Background technique
At present, the development of ocean engineering job requirements is swift and violent, corresponding extra large construction equipment demand is also larger, wherein crane gear possesses the basic demand that identical tension function has become deep-sea hoisting operation, the basic principle of identical tension lifting is that the oil hydraulic cylinder or hydraulic wireline winch by being with compensate function realizes load compensation, but the system of embody rule is varied, and spread in performance is uneven.
Summary of the invention
The object of the invention is, in order to overcome above deficiency, to provide a kind of highly versatile, winch flow and tension force can realize the ratio identical tension hydraulic valve bank covered in a big way.
Object of the present invention is achieved through the following technical solutions: a kind of ratio identical tension hydraulic valve bank, described hydraulic valve bank comprises equilibrium valve and logical valve, one end of equilibrium valve is A1 interface end, the other end of equilibrium valve is A hydraulic fluid port end, one end of logical valve is B1 interface end, the other end of logical valve is B hydraulic fluid port end, be connected by pipeline between equilibrium valve and logical valve, main safety valve and the first shuttle valve is also connected with between equilibrium valve and logical valve, main safety valve communicates with B1 interface end, first shuttle valve communicates with B hydraulic fluid port end, first shuttle valve communicates with one end of the second shuttle valve, the other end of the second shuttle valve communicates with A1 interface end, second shuttle valve is connected with S hydraulic fluid port end, first shuttle valve is also connected with solenoid valve by pipeline, solenoid valve is connected in parallel to pilot stage safety valve, logical valve communicates with the pipeline between the first shuttle valve and solenoid valve, solenoid valve is also connected with restriction, pilot stage safety valve is connected with pressure-measuring point.
The present invention compared with prior art has the following advantages: pass through modular design, winch flow and tension force can realize covering in a big way, complete function, simple installation, pressure (tension force), range of flow are large, can directly be installed on common winch, realize identical tension function, valve group is done except operating mode and identical tension work operating mode except having both unskilled labor, the tension force of winch can be realized easily by valve group function, be connected by outside control mouth can realize tension adjustment with regulated signal, different outward elements can realize multistage or stepless tension force easily and control.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Number in the figure: 1-equilibrium valve, 2-logical valve, 3-A1 interface end, 4-A hydraulic fluid port end, 5-B1 interface end, 6-B hydraulic fluid port end, 7-main safety valve, 8-first shuttle valve, 9-second shuttle valve, 10-S hydraulic fluid port end, 11-solenoid valve, 12-pilot stage safety valve, 13-restriction, 14-pressure-measuring point.
Embodiment:
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
As Fig. 1 shows the embodiment of a kind of ratio identical tension of the present invention hydraulic valve bank, described hydraulic valve bank comprises equilibrium valve 1 and logical valve 2, one end of equilibrium valve 1 is A1 interface end 3, the other end of equilibrium valve 1 is A hydraulic fluid port end 4, one end of logical valve 2 is B1 interface end 5, the other end of logical valve 2 is B hydraulic fluid port end 6, be connected by pipeline between equilibrium valve 1 and logical valve 2, main safety valve 7 and the first shuttle valve 8 is also connected with between equilibrium valve 1 and logical valve 2, main safety valve 7 communicates with B1 interface end 5, first shuttle valve 8 communicates with B hydraulic fluid port end 6, first shuttle valve 8 communicates with one end of the second shuttle valve 9, the other end of the second shuttle valve 9 communicates with A1 interface end 3, second shuttle valve 9 is connected with S hydraulic fluid port end 10, first shuttle valve 8 is also connected with solenoid valve 11 by pipeline, solenoid valve 11 is connected in parallel to pilot stage safety valve 12, logical valve 2 communicates with the pipeline between the first shuttle valve 8 and solenoid valve 11, solenoid valve 11 is also connected with restriction 13, pilot stage safety valve 12 is connected with pressure-measuring point 14.
Hydraulic valve bank of the present invention is applicable to the identical tension valve group of winch application, pass through modular design, winch flow and tension force can realize covering in a big way, can directly be installed on common winch, realize identical tension function, in use working line respectively with A1 interface end 3, B1 interface end 5 connects, long-range tension force is set up valve pressure port and is connected with restriction 13, stepless or the multistage adjustment by pressure, thus realize stepless/multistage setting of identical tension, A hydraulic fluid port end 4, B hydraulic fluid port end 6, the rising of S hydraulic fluid port end 10 difference connecting fluid pressure motor, decline and brake hydraulic fluid port, logical valve 2 can allow winch to have higher speed of related movement under identical tension, this valve group is done except operating mode and identical tension work operating mode except having both unskilled labor, technical characteristics is that the tension force of winch can be realized easily by valve group function: remote pressure regulating valve is connected with restriction 13, stepless or the multistage adjustment by pressure, thus realize stepless/multistage setting of identical tension, logical valve 2 allows winch to have higher speed of related movement under identical tension, common or identical tension mode of operation only need be selected during work, winch can switch, under identical tension mode of operation, regulate remote pressure regulating valve can adjust working tension value in real time, cut off remote adjustment function and can realize fixing identical tension work.
The present invention is Integrated design, and having complete function, tension force, advantage that flow coverage area is large, is a kind of valve group with stronger versatility and application prospect.
Hydraulic valve bank of the present invention logical valve 2 when winch normally works is closed, hydraulic oil trend is A1 interface end 3, A hydraulic fluid port end 4, B hydraulic fluid port end 6, B1 interface end 5 realize normal rising, and hydraulic oil trend declines for realization when B1 interface end 5, B hydraulic fluid port end 6, A hydraulic fluid port end 4, A1 interface end 3 is normal.
When solenoid valve 11 obtains electric, winch is switched to constant-tension state, and power station need continue to provide hydraulic oil to A1 interface end 3 hydraulic fluid port, if the pressure that outer load produces is less than the setting value of remote pressure regulating valve, winch is " recovery " operating mode, and winch speed is controlled by the size of power station flow; If the pressure that outer load produces is greater than the setting value of remote-control pressure valve, winch " puts rope " under external force, the fuel feeding of power station is connected hydraulic fluid port and B hydraulic fluid port end 6 repairing by logical valve 2 to motor with the oil return of motor port for drawdown, and unnecessary oil flows back to fuel tank from B1 interface end 5.By the setting of valve block oil circuit and remote pressure regulating valve, the identical tension draw-in and draw-off function of control realization winch, when the setting pressure of remote control mouth changes, the corresponding change of identical tension value, pilot stage safety valve 12 can limit the pressure that maximum identical tension is.Main safety valve first can determine the safe bearing load of winch in nominal situation and identical tension operating mode simultaneously, realizes overload protection.
Claims (1)
1. a ratio identical tension hydraulic valve bank, it is characterized in that: described hydraulic valve bank comprises equilibrium valve (1) and logical valve (2), one end of described equilibrium valve (1) is A1 interface end (3), the other end of described equilibrium valve (1) is the A hydraulic fluid port end (4) for being connected with the rising hydraulic fluid port of oil hydraulic motor, one end of described logical valve (2) is B1 interface end (5), the other end of described logical valve (2) is the B hydraulic fluid port end (6) for being connected with the decline hydraulic fluid port of oil hydraulic motor, the cylinder ports of described equilibrium valve (1) is connected by pipeline with the actuator port relative with control port of described logical valve (2), main safety valve (7) and the first shuttle valve (8) is also connected with between described equilibrium valve (1) and described logical valve (2), the filler opening of described main safety valve (7) communicates with described A hydraulic fluid port end (4), its oil outlet communicates with described B1 interface end (5), one filler opening of described first shuttle valve (8) communicates with B hydraulic fluid port end (6), another filler opening communicates with described A hydraulic fluid port end (4), the filler opening of described first shuttle valve (8) and the filler opening of the second shuttle valve (9) communicate, one filler opening of described second shuttle valve (9) communicates with B hydraulic fluid port end (6), another filler opening communicates with A1 interface end (3), its oil outlet is connected with S hydraulic fluid port end (10), the outlet of described first shuttle valve (8) is connected with solenoid valve (11) by pipeline, described solenoid valve (11) is connected in parallel to pilot stage safety valve (12), the control oil port of described logical valve (2) communicates with the pipeline between the outlet of described first shuttle valve (8) and described solenoid valve (11), described solenoid valve (11) is also connected with restriction (13), described restriction (13) is arranged on the exterior line that is connected with solenoid valve (11), described pilot stage safety valve (12) is connected with pressure-measuring point (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426201.9A CN102878142B (en) | 2012-10-31 | 2012-10-31 | Constant-tension proportional hydraulic valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426201.9A CN102878142B (en) | 2012-10-31 | 2012-10-31 | Constant-tension proportional hydraulic valve group |
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| Publication Number | Publication Date |
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| CN102878142A CN102878142A (en) | 2013-01-16 |
| CN102878142B true CN102878142B (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210426201.9A Active CN102878142B (en) | 2012-10-31 | 2012-10-31 | Constant-tension proportional hydraulic valve group |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114084828B (en) * | 2021-11-11 | 2023-08-18 | 中船华南船舶机械有限公司 | Control method for constant tension valve |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4261451A (en) * | 1979-03-02 | 1981-04-14 | Northwest Engineering Company | Clutch drag controls for hoist drum |
| FI97612C (en) * | 1995-05-19 | 1997-01-27 | Tamrock Oy | An arrangement for guiding a rock drilling rig winch |
| DE19913276A1 (en) * | 1999-03-24 | 2000-09-28 | Mannesmann Rexroth Ag | Hydraulic pilot control |
| CN100525943C (en) * | 2007-01-09 | 2009-08-12 | 东北大学 | Ratio control hydraulic pressure system for implementing belt steel rolling constant-tension control |
| CN201201875Y (en) * | 2008-04-16 | 2009-03-04 | 中船华南船舶机械有限公司 | Constant tension device of hydraulic winch |
| CN201746869U (en) * | 2009-12-23 | 2011-02-16 | 北京海纳创为液压系统技术有限公司 | Constant tension control system of hydraulic rotary table |
| CN202867381U (en) * | 2012-10-31 | 2013-04-10 | 南通润邦重机有限公司 | Hydraulic block with proportion constant tension |
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| CN102878142A (en) | 2013-01-16 |
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