CN103883338B - A kind of hydraulic support column self-boosting system containing hydraulic intensifier - Google Patents

A kind of hydraulic support column self-boosting system containing hydraulic intensifier Download PDF

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Publication number
CN103883338B
CN103883338B CN201410116690.7A CN201410116690A CN103883338B CN 103883338 B CN103883338 B CN 103883338B CN 201410116690 A CN201410116690 A CN 201410116690A CN 103883338 B CN103883338 B CN 103883338B
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hydraulic
valve
column
way valve
pressure
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CN103883338A (en
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王鹏彧
张国荣
叶晓奔
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Anhui University of Science and Technology
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Anhui University of Science and Technology
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Abstract

The present invention relates to a kind of hydraulic support column self-boosting system containing hydraulic intensifier.This hydraulic support column self-boosting system comprises main reversing valve, column, hydraulic intensifier, one way valve, safety valve, oil pipe and hydraulic control one-way valve.When rising frame, emulsion is through main reversing valve, and a part enters single-acting pressurized cylinder C chamber, and promote large and small piston and move to terminal, complete supercharging preparation, another part enters column plunger shaft through one way valve and hydraulic control one-way valve respectively, carries out just supportting fluid infusion.When after hydraulic support top beam contact top board, column plunger shaft fluid pressure raises, when pressure rises to the built-in reversal valve set pressure of hydraulic intensifier, built-in reversal valve commutation, emulsion flows to the A chamber of single-acting pressurized cylinder through built-in reversal valve, and charged piston starts self-service supercharging, and high-pressure emulsion flows into column plunger shaft and continues fluid infusion, thus reach the object increasing pressure, efficiently solve the not enough problem of Setting Load of Powered Supports.

Description

A kind of hydraulic support column self-boosting system containing hydraulic intensifier
Technical field
The present invention relates to a kind of mining supports device, particularly relate to a kind of hydraulic support column self-boosting system containing hydraulic intensifier.
Background technology
The major reason that hydraulic support adopts hydraulic technique to realize relevant action gets that its structure is simple, volume is little, exportable energetically, high-power.The liquid supply pressure of underground coal mine hydraulic power unit is generally 31.5MPa, through line loss, a lot of occasion pressure can not meet the demands, such as along with the raising of coal mining speed, the top board of difficult control constantly occurs, causes coal face hydraulic support to there is setting load deficiency, the unequal problem of pressure distribution.
Main increase high-pressure and hydraulic station or the supercharging device of adopting that solve the problem at present realizes.Application number be 200710179465.8 patent propose a kind of mining hydraulic support self-boosting system, for solving the too low difficult problem of coal face hydraulic support setting load, the program directly utilizes the originally intrinsic hydraulic unit of mine hydraulic bracket-lift end jack to produce high pressure fuel source, can not complete continuous Automatic-boosting requirement; Adopt hydraulic intensifier can reduce the use of high voltage device, improve reliability and the safety of system, high efficiency automatically fluid pressure can also be adjusted to required pressure.
Summary of the invention
The object of this invention is to provide the hydraulic support column self-boosting system that a kind of structure is simple, cost is low.
The present invention for solving the problems of the technologies described above adopted technical scheme is: devise a kind of hydraulic intensifier, this booster is made up of single-action hydraulic cylinder, one way valve, hydraulic control one-way valve, pilot operated directional control valve.The built-in pilot operated directional control valve of hydraulic intensifier is in right position under spring force, the large I of spring force is according to hydraulic system pressure needs, regulating spring decrement arranges set pressure, single-acting pressurized cylinder C chamber internal emulsification liquid reaches set pressure, and single-acting pressurized cylinder C chamber internal emulsification liquid and pilot operated directional control valve control end are when connecting, pilot operated directional control valve automatic reverse, realizes supercharging, liquid replenishing function automatically.The set pressure scope of described pilot operated directional control valve is at 10 ~ 28MPa.
A kind of hydraulic support column self-boosting system containing hydraulic intensifier of the present invention, comprise column, hydraulic intensifier, one way valve is provided with between the plunger shaft of described column and hydraulic intensifier, connected by oil pipe, the Chang Kaifang of one way valve is to the plunger shaft towards column, column plunger shaft is connected to safety valve and hydraulic control one-way valve, and main reversing valve is connected with hydraulic intensifier and column plunger cavity respectively by oil pipe.When rising frame, high-pressure emulsion flows to hydraulic intensifier through main reversing valve, 2 tunnel flowings are divided in hydraulic intensifier, one tunnel enters single-acting pressurized cylinder C chamber, promote large and small piston and move to terminal, single-acting pressurized cylinder A chamber internal emulsification liquid flows back to fuel tank through pilot operated directional control valve simultaneously, completes the preparation of supercharging, another road enters column plunger shaft through one way valve, carries out just supportting fluid infusion.When after hydraulic support top beam contact top board, column plunger shaft fluid pressure raises, when pressure rises to the built-in reversal valve set pressure of hydraulic intensifier, built-in reversal valve commutation, emulsion flows to the A chamber of single-acting pressurized cylinder through built-in reversal valve, charged piston starts self-service supercharging, and high-pressure emulsion flows into column plunger shaft and continues fluid infusion, thus reaches the object increasing pressure.
The invention has the beneficial effects as follows: hydraulic intensifier is an integrated component, small volume, compact conformation, the hydraulic intensifier of design is applied to hydraulic pressure system of hydraulic support, connecting line can be simplified greatly, meet continuous Automatic-boosting requirement, solve the problem such as Setting Load of Powered Supports deficiency, the uneven deficiency of pressure distribution.
Accompanying drawing explanation
Fig. 1 is hydraulic intensifier fundamental diagram of the present invention.
Fig. 2 is hydraulic support column self-boosting system schematic diagram of the present invention.
Wherein: 1. main reversing valve; 2. hydraulic intensifier; 3. the first column; 4. the second column; 5. the first safety valve; 6. the second safety valve; 7. the second hydraulic control one-way valve; 8. the 3rd hydraulic control one-way valve; 9. the 3rd one way valve; 10. the 4th one way valve; 11. oil pipes; 201. single-acting pressurized cylinders; 202. pilot operated directional control valve; 203. first one way valves; 204. second one way valves; 205. first hydraulic control one-way valves; 206. valve piston; 207. large pistons; P. oil-in; O. oil return opening.
Detailed description of the invention
In FIG, this hydraulic intensifier comprises single-acting pressurized cylinder 201, pilot operated directional control valve 202, first one way valve 203, second one way valve 204, first hydraulic control one-way valve 205.Emulsion P 0be divided into two-way, the first via directly arrives hydraulic intensifier output P by the first hydraulic control one-way valve 205 2secondary route first one way valve 203 flows to the C chamber of single-acting pressurized cylinder 201, the valve piston 206 of single-acting pressurized cylinder 201 is under the effect of emulsion, move to right together with large piston 207, the A chamber emulsion of single-acting pressurized cylinder 201 flows to the B chamber of single-acting pressurized cylinder 201 through pilot operated directional control valve 202, through oil-out P 1oil return, when valve piston 206 be shifted to the right to 1. the C chamber of single-acting pressurized cylinder 201 and oil circuit are connected time, when pressure is increased to set pressure, hydraulicchange-over valve 202 commutates, emulsion flows to the A chamber of single-acting pressurized cylinder 201 through pilot operated directional control valve 202, promote large piston 207 to move to left, realize supercharging, liquid replenishing function.After valve piston 206 moves to certain position, 1. the control chamber fluid of pilot operated directional control valve 202 flow to the B chamber of single-acting pressurized cylinder 201 through oil circuit, hydraulicchange-over valve 202 is reset to right position under spring force, and this process moves in circles and carries out, until reach the goal pressure of expectation.
In fig. 2, the hydraulic support column self-boosting system of hydraulic intensifier should be contained, comprised main reversing valve 1, hydraulic intensifier 2, first column 3, second column 4, first safety valve 5, second safety valve 6, second hydraulic control one-way valve 7, the 3rd hydraulic control one-way valve 8, the 3rd one way valve 9, the 4th one way valve 10.When rising frame, main reversing valve 1 is in left position, high-pressure emulsion is divided into 2 tunnel flowings after oil inlet P, the first one way valve 203, first hydraulic control one-way valve 205: a road enters the C chamber of single-acting pressurized cylinder 201, promote valve piston 206, large piston 207 moves to right to terminal, the C chamber emulsion of the pressurized cylinder of single-acting simultaneously 201 is through pilot operated directional control valve 202 oil return, complete the preparation of supercharging, another road road enters the first column 3 plunger shaft of hydraulic support respectively through the 4th one way valve 10, enter the plunger shaft of the second column 4 of hydraulic support through the 3rd one way valve 9, carry out just supportting fluid infusion.When after hydraulic support top beam contact top board, first column 3, the plunger shaft emulsion pressure of the second column 4 raises, when pressure rises to pilot operated directional control valve 202 set pressure of hydraulic intensifier 2, the left position of pilot operated directional control valve 202 is connected, flowed to the A chamber of single-acting pressurized cylinder 201 through pilot operated directional control valve 202 by the high-pressure emulsion of main reversing valve 1, promote large piston 207 to move to left, high pressure liquid in the C chamber of single-acting pressurized cylinder 201 is through the second one way valve 204, 4th one way valve 10 flows into the first column 3 plunger shaft, through the second one way valve 204, 3rd one way valve 9 flows into the second column 4 plunger shaft, continue fluid infusion, column plunger shaft pressure is made to reach required value.When falling frame, main reversing valve 1 gets back to right position, emulsion flows to the epicoele of the first column 3, second column 4 respectively through oil inlet P, second hydraulic control one-way valve 7, the 3rd hydraulic control one-way valve 8 are opened simultaneously, and the first column 3, second column 4 plunger shaft emulsion flows to oil return opening O through the second hydraulic control one-way valve 7, the 3rd hydraulic control one-way valve 8.

Claims (2)

1. the hydraulic support column self-boosting system containing hydraulic intensifier, comprises main reversing valve (1), hydraulic intensifier (2), the first column (3), the second column (4), the first safety valve (5), the second safety valve (6), the second hydraulic control one-way valve (7), the 3rd hydraulic control one-way valve (8), the 3rd one way valve (9), the 4th one way valve (10); The 4th one way valve (10) is provided with between the plunger shaft of described first column (3) and hydraulic intensifier (2), be provided with the 3rd one way valve (9) between the plunger shaft of described second column (4) and hydraulic intensifier (2), connected by oil pipe (11); The Chang Kaifang of described 4th one way valve (10) is to the plunger shaft towards the first column (3), and the Chang Kaifang of described 3rd one way valve (9) is to the plunger shaft towards the second column (4); The plunger shaft of described first column (3) is connected to the first safety valve (5) and the second hydraulic control one-way valve (7), and the plunger shaft of described second column (4) is connected to the second safety valve (6) and the 3rd hydraulic control one-way valve (8); The actuator port of described main reversing valve (1) is connected with hydraulic intensifier (2) and the first column (3), the second column (4) plunger cavity respectively; Described hydraulic intensifier (2) is made up of single-action hydraulic cylinder (201), pilot operated directional control valve (202), the first one way valve (203), the second one way valve (204), the first hydraulic control one-way valve (205); Described pilot operated directional control valve (202) is in right position under spring force, the large I of spring force is according to hydraulic system pressure needs, regulating spring decrement arranges set pressure, single-acting pressurized cylinder (201) C chamber internal emulsification liquid reaches set pressure, and single-acting pressurized cylinder (201) C chamber internal emulsification liquid and pilot operated directional control valve (202) control end are when connecting, pilot operated directional control valve (202) automatic reverse, realizes supercharging, liquid replenishing function.
2. a kind of hydraulic support column self-boosting system containing hydraulic intensifier according to claim 1, is characterized in that: the set pressure scope of described pilot operated directional control valve (202) is at 10 ~ 28MPa.
CN201410116690.7A 2014-03-26 2014-03-26 A kind of hydraulic support column self-boosting system containing hydraulic intensifier Active CN103883338B (en)

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104502079A (en) * 2014-12-15 2015-04-08 中煤北京煤矿机械有限责任公司 Stand column dynamic test device
CN104819840B (en) * 2015-05-22 2018-08-24 焦作欣扬程煤矿设备有限公司 A kind of double pressure cylinder test stands
CN105465063A (en) * 2015-12-28 2016-04-06 中国煤炭科工集团太原研究院有限公司 Single-action reciprocating-type hydraulic supercharging device
CN105626600B (en) * 2016-03-04 2017-06-09 中国矿业大学 A kind of gradually boosting type hydraulic intensifier
CN108679007B (en) * 2018-05-18 2019-11-08 安徽绿动能源有限公司 A kind of compact single-acting hydraulic booster
CN108916148A (en) * 2018-07-30 2018-11-30 安徽理工大学 A kind of Mine anchorage cable tensioning machine hydraulic system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB939951A (en) * 1960-04-21 1963-10-16 Conrad Roy Bates Improvements relating to booster-assisted hydraulic systems
CN101205810A (en) * 2007-12-13 2008-06-25 中煤北京煤矿机械有限责任公司 Mining hydraulic support self-boosting system
CN101333927A (en) * 2008-04-17 2008-12-31 北京天地玛珂电液控制系统有限公司 High pressure setting system without high-pressure pump and its method for controlling high pressure setting
CN101498324A (en) * 2009-03-02 2009-08-05 北京联合大学 Hydraulic pressure booster for ultra-high pressure tool
CN101709653A (en) * 2009-12-23 2010-05-19 三一重型装备有限公司 Hydraulic support and supercharging device thereof
CN202250114U (en) * 2011-07-04 2012-05-30 三一重型综采成套装备有限公司 Hydraulic system and pressure increasing valve using same
CN203476356U (en) * 2013-07-17 2014-03-12 淮北中矿机械电子工程中心 Portable single hydraulic prop type liquid supply device
CN203769811U (en) * 2014-03-26 2014-08-13 安徽理工大学 Self-help supercharging system with hydraulic supercharger and upright columns for hydraulic support

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB939951A (en) * 1960-04-21 1963-10-16 Conrad Roy Bates Improvements relating to booster-assisted hydraulic systems
CN101205810A (en) * 2007-12-13 2008-06-25 中煤北京煤矿机械有限责任公司 Mining hydraulic support self-boosting system
CN101333927A (en) * 2008-04-17 2008-12-31 北京天地玛珂电液控制系统有限公司 High pressure setting system without high-pressure pump and its method for controlling high pressure setting
CN101498324A (en) * 2009-03-02 2009-08-05 北京联合大学 Hydraulic pressure booster for ultra-high pressure tool
CN101709653A (en) * 2009-12-23 2010-05-19 三一重型装备有限公司 Hydraulic support and supercharging device thereof
CN202250114U (en) * 2011-07-04 2012-05-30 三一重型综采成套装备有限公司 Hydraulic system and pressure increasing valve using same
CN203476356U (en) * 2013-07-17 2014-03-12 淮北中矿机械电子工程中心 Portable single hydraulic prop type liquid supply device
CN203769811U (en) * 2014-03-26 2014-08-13 安徽理工大学 Self-help supercharging system with hydraulic supercharger and upright columns for hydraulic support

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