CN102587435A - Open hydraulic system for horizontal chain-blade type integral-cutting wall forming equipment - Google Patents
Open hydraulic system for horizontal chain-blade type integral-cutting wall forming equipment Download PDFInfo
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- CN102587435A CN102587435A CN2012100693557A CN201210069355A CN102587435A CN 102587435 A CN102587435 A CN 102587435A CN 2012100693557 A CN2012100693557 A CN 2012100693557A CN 201210069355 A CN201210069355 A CN 201210069355A CN 102587435 A CN102587435 A CN 102587435A
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Abstract
The invention discloses an open hydraulic system for horizontal chain-blade type integral-cutting wall forming equipment, which comprises a power supply, an oil pumping unit, a three-position four-way reversing valve, an overflow valve, a drive unit and a plug valve set, wherein the oil pumping unit is composed of an axial piston pump, the drive unit is composed of a hydraulic motor, the plug valve set is composed of four plug valves, and the axial piston valve is controlled electrically and proportionally. The open hydraulic system has the advantages that firstly, the system is simple and operationally stable; secondly, the system enables chain blades of the equipment to start, stop, positively rotate, reversely rotate and to be subjected to stepless speed regulation in construction; and thirdly, required high-torque low-speed cutting and low-torque fast stirring in rotation of the chain blades and required positive and reverse rotational cutting of the chain blades can be satisfied.
Description
Technical field
The invention belongs to the hydraulic system of foundation construction equipment, be specifically related to a kind of open type hydraulic system that horizontal chain cutter type integral cutting becomes wall equipment that is used for.
Background technology
Along with the continuous upgrading of domestic city building size, the day of ground space hastens towards saturation.People begin to turn to the underground space of seeking urban development to sight; Be accompanied by deepening continuously of underground space development level; Construction of diaphragm wall equipment commonly used at present all has its disadvantage, is difficult to satisfy the demand of " dark, fast, strong " in the cement mixing method practice of construction that constantly develops.It is that the toolbox that has the chain saw type cutter is inserted in the soil layer that horizontal chain cutter type integral cutting becomes wall equipment, reach set depth after, have the chain saw blade entry into service of blade and laterally move, cut grooving in the horizontal direction.Grout injection when constantly mixing the original position soil layer forms real continuous diaphragm wall.
Utilizing horizontal chain cutter type integral cutting to become in the wall equipment construction, the chain cutter will turn round in tens of meters dark soil layers, laterally moves simultaneously, needs bigger driving torque.In working angles, run into when causing the chain cutter to be blocked, need the counter-rotating of chain cutter than heavy load.In the process of slip casting, then need to stir fast, to guarantee closely knit uniform one-tenth wall quality.
General big flow speed is regulated and closed system is all adopted in control, or open system carries out stepping and regulate, but the closed system oil pump costs an arm and a leg, and the open system stepping is regulated and realized not stepless speed controlling.
Summary of the invention
The objective of the invention is provides a kind of open type hydraulic system that horizontal chain cutter type integral cutting becomes wall equipment that is used for that can realize stepless time adjustment for the deficiency that overcomes prior art.
The technical scheme that realizes the object of the invention employing is following:
Being used for horizontal chain cutter type integral cutting becomes the open type hydraulic system of wall equipment to comprise: power, the pump oil unit of being made up of axial plunger pump, three position four-way directional control valve, overflow valve, driver element and 4 cartridge valve groups that cartridge valve constitutes of being made up of hydraulic motor; Axial plunger pump in the said pump oil unit is connected with power; The inlet port connected tank of pump oil unit; Oil-out connects an end hydraulic fluid port of the first, the 4th cartridge valve through pressure oil pipe; The other end hydraulic fluid port of first cartridge valve connects an end hydraulic fluid port of driver element and an end hydraulic fluid port of second cartridge valve, and the other end hydraulic fluid port of the 4th cartridge valve connects the other end hydraulic fluid port of driver element and an end hydraulic fluid port of the 3rd cartridge valve, and the other end hydraulic fluid port of second cartridge valve and the 3rd cartridge valve is all through the oil return pipe connected tank; Two hydraulic fluid ports of reversal valve are met and sent off oil pipe and oil return pipe respectively, and other two hydraulic fluid ports connect the control port of the first, the 3rd cartridge valve and the second, the 4th cartridge valve respectively; Be connected to overflow valve sending between oil pipe and the oil return pipe; Said axial plunger pump adopts electric proportional control.
Said pump oil unit is composed in parallel by 2 axial plunger pumps that connect one way valve respectively at oil-out.
Said driver element is composed in parallel by 2 hydraulic motors.
Axial plunger pump among the present invention adopts electric proportional control, can realize the speed regulation to motor; One way valve shields to axial plunger pump, and when one of them axial plunger pump was out of order, one way valve can effectively prevent the impact from the hydraulic oil of another axial plunger pump; Reversal valve can control motor startup, stop and rotating; Cartridge valve is big flow cartridge valve, can satisfy the requirement of hydraulic system to big discharge capacity; Overflow valve plays the safeguard protection effect to hydraulic system.
Hydraulic system provided by the present invention has following beneficial effect:
1, adopt pump and the valve formed by pump, valve, motor to control system, simple and stable simultaneously;
2, can the horizontal chain cutter type integral cutting of realization become wall equipment construction medium chain cutter startup, stop, just changeing, counter-rotating and stepless speed regulation;
3, can satisfy horizontal chain cutter type integral cutting become in the wall equipment construction to the chain cutter turn round desired large torque low speed cutting, low moment of torsion stirs fast and the function of chain cutter rotating cutting.
Further specify technical scheme of the present invention below in conjunction with accompanying drawing.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
The specific embodiment
Referring to accompanying drawing, provided by the inventionly be used for the open type hydraulic system that horizontal chain cutter type integral cutting becomes wall equipment, mainly comprise: motor 1; Connect the axial plunger pump 31a of one way valve 32a, 32b, the pump oil unit 3 that 31b composes in parallel by 2 respectively at oil-out; 1 3-position 4-way electro-hydraulic reversing valve 5; 1 overflow valve 7; Driver element 8 that composes in parallel by 2 hydraulic motor 8a, 8b and the cartridge valve group that constitutes by 4 cartridge valve 6a, 6b, 6c, 6d; Axial plunger pump 31a, 31b in the pump oil unit 3 are connected with motor 1 through shaft coupling 2; The inlet port connected tank 10 of pump oil unit 3; Oil-out meets the hydraulic fluid port a of cartridge valve 6a, 6d through pressure oil pipe 4; The hydraulic fluid port b of cartridge valve 6a meets the hydraulic fluid port a of driver element 8 and the hydraulic fluid port b of cartridge valve 6b, and the hydraulic fluid port b of cartridge valve 6d meets the hydraulic fluid port b of driver element 8 and the hydraulic fluid port b of cartridge valve 6c, and the hydraulic fluid port a of cartridge valve 6b, 6c is all through oil return pipe 9 connected tanks 10; The hydraulic fluid port p of reversal valve 5, t connect pressure oil pipe 4 and oil return pipe 9 respectively, and the hydraulic fluid port a of reversal valve 5, b connect the control port of cartridge valve 6a, 6c and cartridge valve 6b, 6d respectively; Between pressure oil pipe 4 and oil return pipe 9, be connected to overflow valve 7; Axial plunger pump adopts electric proportional control.
Operating principle: when reversal valve 5 is positioned at meta, control 4 cartridge valve 6a, 6b, 6c, 6d Close All, driver element 8 is in the state of quitting work, and pump oil unit 3 is in unloading condition, and this moment, system did not work; When reversal valve 5 was positioned at position, a left side, control cartridge valve 6b, 6d closed, and cartridge valve 6a, 6c open, and to driver element 8, hydraulic motor 8a, 8b just change hydraulic oil through cartridge valve 6a, and hydraulic oil returns fuel tank 10 through cartridge valve 6c and oil return pipe 9; When reversal valve 5 was positioned at right, control cartridge valve 6a, 6c closed, and cartridge valve 6b, 6d open, and to driver element 8, hydraulic motor 8a, 8b's hydraulic oil reverse through cartridge valve 6d, and hydraulic oil returns fuel tank 10 through cartridge valve 6b and oil return pipe 9.Under the working state of system, can realize stepless speed regulation through the discharge capacity of electric scaling signal control axial plunger pump 31a, 31b to hydraulic motor 8a, 8b.When axial plunger pump 31a, the output of 31b float amount, hydraulic motor 8a, 8b are in the tick-over state, can produce than high pulling torque, are applicable to the cutting of chain cutter to soil layer this moment; During the big discharge capacity output of axial plunger pump 31a, 31b, hydraulic motor 8a, 8b are in the high speed operation state, and it is less to produce moment of torsion, is applicable to slip casting work and carries out the stirring of slurries this moment.Under the working state of system, when load caused system pressure too high more greatly, overflow valve 7 spools were opened, and system is played a protective role.When one of them axial plunger pump was out of order, one way valve can effectively prevent the impact from the hydraulic oil of another axial plunger pump, and the axial plunger pump that protection is not worked makes it avoid further damage.
Claims (3)
1. one kind is used for the open type hydraulic system that horizontal chain cutter type integral cutting becomes wall equipment, it is characterized in that comprising: power, the pump oil unit of being made up of axial plunger pump, three position four-way directional control valve, overflow valve, driver element and 4 cartridge valve groups that cartridge valve constitutes of being made up of hydraulic motor; Axial plunger pump in the said pump oil unit is connected with power; The inlet port connected tank of pump oil unit; Oil-out connects an end hydraulic fluid port of the first, the 4th cartridge valve through pressure oil pipe; The other end hydraulic fluid port of first cartridge valve connects an end hydraulic fluid port of driver element and an end hydraulic fluid port of second cartridge valve, and the other end hydraulic fluid port of the 4th cartridge valve connects the other end hydraulic fluid port of driver element and an end hydraulic fluid port of the 3rd cartridge valve, and the other end hydraulic fluid port of second cartridge valve and the 3rd cartridge valve is all through the oil return pipe connected tank; Two hydraulic fluid ports of reversal valve are met and sent off oil pipe and oil return pipe respectively, and other two hydraulic fluid ports connect the control port of the first, the 3rd cartridge valve and the second, the 4th cartridge valve respectively; Be connected to overflow valve sending between oil pipe and the oil return pipe; Said axial plunger pump adopts electric proportional control.
2. according to claim 1ly be used for the open type hydraulic system that horizontal chain cutter type integral cutting becomes wall equipment, it is characterized in that said pump oil unit is composed in parallel by 2 axial plunger pumps that connect one way valve respectively at oil-out.
3. according to claim 1 and 2ly be used for the open type hydraulic system that horizontal chain cutter type integral cutting becomes wall equipment, it is characterized in that said driver element is composed in parallel by 2 hydraulic motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210069355 CN102587435B (en) | 2012-03-15 | 2012-03-15 | Open hydraulic system for horizontal chain-blade type integral-cutting wall forming equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210069355 CN102587435B (en) | 2012-03-15 | 2012-03-15 | Open hydraulic system for horizontal chain-blade type integral-cutting wall forming equipment |
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| Publication Number | Publication Date |
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| CN102587435A true CN102587435A (en) | 2012-07-18 |
| CN102587435B CN102587435B (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210069355 Active CN102587435B (en) | 2012-03-15 | 2012-03-15 | Open hydraulic system for horizontal chain-blade type integral-cutting wall forming equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697000A (en) * | 2013-12-03 | 2014-04-02 | 上海中联重科桩工机械有限公司 | Hydraulic control system for realizing stepless speed change of actuating mechanism |
| CN105857785A (en) * | 2016-06-21 | 2016-08-17 | 中北大学 | Steel coil packaging supporting platform |
| CN107420357A (en) * | 2017-07-21 | 2017-12-01 | 广西柳工机械股份有限公司 | Closed type hydraulic system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030074811A1 (en) * | 2001-10-19 | 2003-04-24 | Sprinkle David Laverne | Hydraulic diverting system for utility vehicle |
| CN2582924Y (en) * | 2002-11-21 | 2003-10-29 | 三一重工股份有限公司 | Serial and parallel change over device of vehicle driving system |
| CN201443085U (en) * | 2009-05-07 | 2010-04-28 | 何连杰 | Small-sized chain trencher |
| CN102155035A (en) * | 2011-05-26 | 2011-08-17 | 上海工程机械厂有限公司 | Continuous wall milling machine |
| CN202466566U (en) * | 2012-03-15 | 2012-10-03 | 中国铁建重工集团有限公司 | Open hydraulic system for horizontal chain knife type integral wall cutting equipment |
-
2012
- 2012-03-15 CN CN 201210069355 patent/CN102587435B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030074811A1 (en) * | 2001-10-19 | 2003-04-24 | Sprinkle David Laverne | Hydraulic diverting system for utility vehicle |
| CN2582924Y (en) * | 2002-11-21 | 2003-10-29 | 三一重工股份有限公司 | Serial and parallel change over device of vehicle driving system |
| CN201443085U (en) * | 2009-05-07 | 2010-04-28 | 何连杰 | Small-sized chain trencher |
| CN102155035A (en) * | 2011-05-26 | 2011-08-17 | 上海工程机械厂有限公司 | Continuous wall milling machine |
| CN202466566U (en) * | 2012-03-15 | 2012-10-03 | 中国铁建重工集团有限公司 | Open hydraulic system for horizontal chain knife type integral wall cutting equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697000A (en) * | 2013-12-03 | 2014-04-02 | 上海中联重科桩工机械有限公司 | Hydraulic control system for realizing stepless speed change of actuating mechanism |
| CN103697000B (en) * | 2013-12-03 | 2015-11-04 | 上海中联重科桩工机械有限公司 | Realize the infinite variable speed hydraulic control system of actuator |
| CN105857785A (en) * | 2016-06-21 | 2016-08-17 | 中北大学 | Steel coil packaging supporting platform |
| CN107420357A (en) * | 2017-07-21 | 2017-12-01 | 广西柳工机械股份有限公司 | Closed type hydraulic system |
| CN107420357B (en) * | 2017-07-21 | 2019-01-01 | 广西柳工机械股份有限公司 | Closed type hydraulic system |
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| Publication number | Publication date |
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| CN102587435B (en) | 2013-06-19 |
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Address after: 410100 No. 88 Dongqi Road, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee after: China Railway Construction Heavy Industry Group Co., Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan, No. 88 East Road, No. seven Patentee before: China Railway Construction Heavy Industry Co.,Ltd. |
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