CN101670571B - Dismounting device of hydraulic cylinder - Google Patents

Dismounting device of hydraulic cylinder Download PDF

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Publication number
CN101670571B
CN101670571B CN 200910178092 CN200910178092A CN101670571B CN 101670571 B CN101670571 B CN 101670571B CN 200910178092 CN200910178092 CN 200910178092 CN 200910178092 A CN200910178092 A CN 200910178092A CN 101670571 B CN101670571 B CN 101670571B
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China
Prior art keywords
way valve
oil
hydraulic
cylinder pressure
actuator port
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CN 200910178092
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Chinese (zh)
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CN101670571A (en
Inventor
谢兴华
金好谟
叶方辉
刘建勇
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Xinxing Ductile Iron Pipes Co Ltd
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Xinxing Ductile Iron Pipes Co Ltd
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Priority to CN 200910178092 priority Critical patent/CN101670571B/en
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Publication of CN101670571B publication Critical patent/CN101670571B/en
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Abstract

The invention provides a dismounting device of a hydraulic cylinder, wherein, the oil inlet of a hydraulic pump is connected with an oil tank through an oil pipe line; the oil outlet of the hydraulic pump is connected to an oil supply opening P of a three-position four way valve; a return opening T of the three-position four way valve is connected with the oil tank through an oil pipe line; a working port X of the three-position four way valve is connected to the inlet of the one-way throttle valve; the outlets of the one-way throttle valve are respectively connected to a rodless cylinder of a working hydraulic cylinder and a working port A of a two-position three way valve; the working port B of the two-position three way valve is connected to the working port Y of the three-position four way valve; and the working port X of the two-position three way valve is connected to a rod cylinder of the working hydraulic cylinder. The dismounting device of the hydraulic cylinder in the invention is constituted by adopting a hydraulic system, thus having reasonable structure, simple manufacturing, low cost, and capability of convenient disassembling and assembling of the hydraulic cylinderto be maintained.

Description

Dismounting device of hydraulic cylinder
Technical field
The present invention relates to a kind of provision for disengagement, particularly a kind of dismounting device of hydraulic cylinder.
Background technology
The hydraulic cylinder reparation is the most important ring of maintenance fluid pressing system, in repairing the process of hydraulic cylinder, often has piston with cylinder barrel is stuck, and the phenomenon that fairlead and piston rod block causes and treats that the maintenance fluid cylinder pressure is very difficult and dismantle, and brings very big difficulty to maintenance work.
Summary of the invention
For addressing the above problem, the invention provides a kind of can be for convenience detach, the dismounting device of hydraulic cylinder for the treatment of the maintenance fluid cylinder pressure is installed.
Dismounting device of hydraulic cylinder of the present invention, wherein: the oil-in of hydraulic pump links to each other with fuel tank by petroleum pipeline, the oil-out of described hydraulic pump is connected to the oil-feed port P of three-position four-way valve, the oil return inlet T of described three-position four-way valve links to each other with fuel tank by petroleum pipeline, the actuator port X of described three-position four-way valve is connected to the entrance of one-way throttle valve, the outlet of described one-way throttle valve is connected to the rodless cavity of working solution cylinder pressure and the actuator port A of two-position three-way valve respectively, the actuator port B of described two-position three-way valve is connected to the actuator port Y of described three-position four-way valve, and the actuator port X of described two-position three-way valve is connected to the rod chamber of described working solution cylinder pressure.
Dismounting device of hydraulic cylinder of the present invention, wherein: the oil-out of described hydraulic pump is connected with the overflow valve that leads to described fuel tank.
Dismounting device of hydraulic cylinder of the present invention, wherein: the oil-out of described hydraulic pump is connected with Pressure gauge.
Dismounting device of hydraulic cylinder of the present invention is owing to adopt hydraulic system to constitute, rational in infrastructure, make simple, cost is low, can be for convenience detach, install and treat the maintenance fluid cylinder pressure.
Description of drawings
Fig. 1 is the schematic diagram of dismounting device of hydraulic cylinder of the present invention.
The specific embodiment
Below in conjunction with Figure of description dismounting device of hydraulic cylinder of the present invention is described further.
Referring to Fig. 1, dismounting device of hydraulic cylinder of the present invention, wherein: the oil-in of hydraulic pump 5 links to each other with fuel tank 1 by petroleum pipeline, the oil-out of hydraulic pump 5 is connected to the oil-feed port P of three-position four-way valve 8, the oil return inlet T of three-position four-way valve 8 links to each other with fuel tank 1 by petroleum pipeline, the actuator port X of three-position four-way valve 8 is connected to the entrance of one-way throttle valve 11, the outlet of one-way throttle valve 11 is connected to the rodless cavity of working solution cylinder pressure 13 and the actuator port A of two-position three-way valve 12 respectively, the actuator port B of two-position three-way valve 12 is connected to the actuator port Y of three-position four-way valve 8, and the actuator port X of two-position three-way valve 12 is connected to the rod chamber of working solution cylinder pressure 13.The oil-out of hydraulic pump 5 is connected with the overflow valve 7 that leads to fuel tank 1.The oil-out of hydraulic pump 5 is connected with pressure meter switch 9, Pressure gauge 10.
Dismounting device of hydraulic cylinder of the present invention has three kinds of operating modes:
Operating mode 1: the piston rod of working solution cylinder pressure 13 stretches out fast, so as the piston rod of working solution cylinder pressure 13 by rigid connecting rod with treat that the piston rod of maintenance fluid cylinder pressure 14 draws a straight line.
Operating mode 2: after the piston rod of working solution cylinder pressure 13 connects with the piston rod for the treatment of maintenance fluid cylinder pressure 14, the piston rod of working solution cylinder pressure 13 drives under worker's back speed degree and treats that the piston rod of maintenance fluid cylinder pressure 14 moves together, pulls out in order to will treat the piston rod of maintenance fluid cylinder pressure 14.
Operating mode 3: when need will treat that the piston rod of maintenance fluid cylinder pressure 14 is compressed into, 13 of working solution cylinder pressures moved under work speed, and piston rod stretches out at a slow speed, is pressed in order to will treat the piston rod of maintenance fluid cylinder pressure 14.
The course of work of operating mode 1 is as follows: the pressure oil that hydraulic pump 5 is supplied with enters the rodless cavity of working solution cylinder pressure 13 through oil-feed port P, the actuator port X → one-way throttle valve 11 of three-position four-way valve 8.Oil return line: the actuator port X of the rod chamber → two-position three-way valve 12 of working solution cylinder pressure 13, the actuator port Y of actuator port B → three-position four-way valve 8, oil return inlet T → fuel tank 1.The piston rod of working solution cylinder pressure 13 stretches out fast, so as the piston rod of working solution cylinder pressure 13 by rigid connecting rod with treat that the piston rod of maintenance fluid cylinder pressure 14 draws a straight line.
The course of work of operating mode 2 is as follows: the pressure oil that hydraulic pump 5 is supplied with enters the rod chamber of working solution cylinder pressure 13 through the oil-feed port P of three-position four-way valve 8, actuator port B, the actuator port X of actuator port Y → two-position three-way valve 12.Oil return line: the actuator port X of rodless cavity → one-way throttle valve 11 → three-position four-way valve 8 of working solution cylinder pressure 13, oil return inlet T → fuel tank 1.The piston rod of working solution cylinder pressure 13 withdraw at a slow speed (speed of withdrawal can be controlled by regulating one-way throttle valve 11) like this.The piston rod of working solution cylinder pressure 13 drives under worker's back speed degree and treats that the piston rod of maintenance fluid cylinder pressure 14 moves together, pulls out in order to keep in repair in order to will treat the piston rod of maintenance fluid cylinder pressure 14.
The course of work of operating mode 3 is as follows: the pressure oil that hydraulic pump 5 is supplied with is through the oil-feed port P of three-position four-way valve 8, the rodless cavity that actuator port X → one-way throttle valve 11 enters working solution cylinder pressure 13; Oil return line is from the actuator port X of the rod chamber → two-position three-way valve 12 of working solution cylinder pressure 13, actuator port A, also enters the rodless cavity (realizing differential connection) of working solution cylinder pressure 13.The piston of working solution cylinder pressure 13 left side pressure is a bit larger tham the right side like this, and piston rod stretches out at a slow speed, and the piston rod for the treatment of maintenance fluid cylinder pressure 14 after maintenance is finished is pressed into, and can avoid causing damage because of the sealing ring that excessive velocities is treated on maintenance fluid cylinder pressure 14 pistons.
Above embodiment is described preferred embodiment of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.

Claims (1)

1. dismounting device of hydraulic cylinder, it is characterized in that: the oil-in of hydraulic pump (5) links to each other with fuel tank (1) by petroleum pipeline, the oil-out of described hydraulic pump (5) is connected to the oil-feed port P of three-position four-way valve (8), the oil return inlet T of described three-position four-way valve (8) links to each other with fuel tank (1) by petroleum pipeline, the actuator port X of described three-position four-way valve (8) is connected to the entrance of one-way throttle valve (11), the outlet of described one-way throttle valve (11) is connected to the rodless cavity of working solution cylinder pressure (13) and the actuator port A of two-position three-way valve (12) respectively, the actuator port B of described two-position three-way valve (12) is connected to the actuator port Y of described three-position four-way valve (8), the actuator port X of described two-position three-way valve (12) is connected to the rod chamber of described working solution cylinder pressure (13), the oil-out of described hydraulic pump (5) is connected with the overflow valve (7) that leads to described fuel tank (1), and the oil-out of described hydraulic pump (5) is connected with Pressure gauge (10).
CN 200910178092 2009-09-29 2009-09-29 Dismounting device of hydraulic cylinder Active CN101670571B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200910178092 CN101670571B (en) 2009-09-29 2009-09-29 Dismounting device of hydraulic cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200910178092 CN101670571B (en) 2009-09-29 2009-09-29 Dismounting device of hydraulic cylinder

Publications (2)

Publication Number Publication Date
CN101670571A CN101670571A (en) 2010-03-17
CN101670571B true CN101670571B (en) 2013-09-25

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CN 200910178092 Active CN101670571B (en) 2009-09-29 2009-09-29 Dismounting device of hydraulic cylinder

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101825121B (en) * 2010-04-09 2012-06-27 山东交通学院 Stain-resistant and high-pressure-resistant four-way valve capable of loading and unloading
CN103769853B (en) * 2014-02-26 2016-04-20 山东大学 Hydraulic cylinder quick change frock tool and using method thereof during a kind of loading machine field work

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2115859U (en) * 1992-03-04 1992-09-16 朱黑海 Semi-floating type piston pin detaching machine
CN2646453Y (en) * 2003-09-23 2004-10-06 郭晓松 Hydraulic workbench
CN201175824Y (en) * 2008-01-29 2009-01-07 安康水力发电厂 Full automatic hydraulic disassembly system of gate arm

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2115859U (en) * 1992-03-04 1992-09-16 朱黑海 Semi-floating type piston pin detaching machine
CN2646453Y (en) * 2003-09-23 2004-10-06 郭晓松 Hydraulic workbench
CN201175824Y (en) * 2008-01-29 2009-01-07 安康水力发电厂 Full automatic hydraulic disassembly system of gate arm

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