CN202461389U - Oil pressure machine and hydraulic system thereof - Google Patents

Oil pressure machine and hydraulic system thereof Download PDF

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Publication number
CN202461389U
CN202461389U CN2011205026955U CN201120502695U CN202461389U CN 202461389 U CN202461389 U CN 202461389U CN 2011205026955 U CN2011205026955 U CN 2011205026955U CN 201120502695 U CN201120502695 U CN 201120502695U CN 202461389 U CN202461389 U CN 202461389U
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CN
China
Prior art keywords
hydraulic
oil
cylinder
valve
master cylinder
Prior art date
Application number
CN2011205026955U
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Chinese (zh)
Inventor
王洪国
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王洪国
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Priority to CN2011205026955U priority Critical patent/CN202461389U/en
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Publication of CN202461389U publication Critical patent/CN202461389U/en

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Abstract

The utility model provides the hydraulic system of an oil pressure machine, which comprises a main oil cylinder, an upper fixed plate fixed to the lower end of the piston rod of the main oil cylinder, a filling valve communicated with the oil port of the upper chamber of the main oil cylinder through an oil-way pipeline, a sequence valve connected with the oil port of the upper chamber of the main oil cylinder and the filling valve, a three-position four-way electromagnetic reversing valve communicated with the oil port of the upper chamber of the main oil cylinder through the oil-way pipeline, and an auxiliary oil cylinder in parallel connected with the main oil cylinder. The oil port of the upper chamber of the auxiliary oil cylinder is communicated with a working oil port of the three-position four-way electromagnetic reversing valve through the oil-way pipeline. The oil port of the lower chamber of the auxiliary oil cylinder is communicated with another working oil port of the three-position four-way electromagnetic reversing valve through the oil-way pipeline. The piston rod of the auxiliary oil cylinder is fixed to the upper fixed plate of the oil pressure machine. Compared with the filling period of a conventional oil cylinder, the filling period of the auxiliary oil cylinder is shorted by a plurality of times, so that the efficiency of the oil pressure machine is increased. Meanwhile, the hydraulic energy is saved and the machine is energy-saving and efficient.

Description

A kind of hydraulic machine and hydraulic system thereof
Technical field
The utility model relates to a kind of hydraulic machine, relates to a kind of hydraulic machine and hydraulic system thereof in particular.
Background technology
Hydraulic machine is that a kind of specific hydraulic fluid that passes through is as working media; Through hydraulic pump as power source; Lean on the active force of pump to make hydraulic oil pass through fluid pressure line entering oil cylinder/piston, several groups of seals of working in coordination are arranged in oil cylinder/piston then, the sealing of diverse location all is different; But all play the effect of sealing, hydraulic oil can not be revealed.Thereby last direction of passage control valve makes hydraulic oil make oil cylinder/piston cycle acting accomplish a kind of machinery that certain mechanical action is used as productivity in the fuel tank circulation.
Hydraulic machine is made up of main frame and controlling organization two large divisions.The hydraulic machine host machine part comprises fuselage, oil cylinder and charging device etc.Actuating unit is made up of fuel tank, high-pressure pump, low voltage control system, motor and various pressure valve and direction valve etc.Actuating unit through the conversion of pump and oil cylinder and various hydraulic valve realization energy, is regulated and conveying under the control of electric device, accomplishes the circulation of various technological actions, and the operating efficiency of oil cylinder is restricting the operating efficiency of whole hydraulic machine.
Flatten at existing automotive wheel, in the hydraulic system of the hydraulic machine of punching special equipment, what the oil cylinder in the main frame adopted is the common oil cylinder of beidirectional, its speed is slow, production efficiency is low; And the effect of pressing, punching is also undesirable.
Therefore, how hydraulic system in the prior art being made improvement, thereby make its efficient energy-saving, is the problem that those skilled in the art need solution badly.
The utility model content
In view of this, the utility model provides a kind of hydraulic system of hydraulic machine, has improved the efficient of hydraulic machine, practice thrift hydraulic pressure can, and pressing and punching is effective, has reached efficient energy-saving.
For realizing above-mentioned purpose, the utility model provides following technical scheme:
A kind of hydraulic system of hydraulic machine comprises:
Master cylinder, the upper mounted plate that fixes with said main oil cylinder piston bar lower end; The filling-valve that is connected through oil line pipe with said master cylinder epicoele hydraulic fluid port; The sequence valve that is connected with filling-valve with said master cylinder epicoele hydraulic fluid port; The 3-position 4-way solenoid directional control valve that is connected through oil line pipe with said master cylinder epicoele hydraulic fluid port and
The auxiliary cylinder parallelly connected with said master cylinder; Said auxiliary cylinder epicoele hydraulic fluid port is connected with said 3-position 4-way solenoid directional control valve actuator port through oil line pipe; Said auxiliary cylinder cavity of resorption hydraulic fluid port is connected with said another actuator port of 3-position 4-way solenoid directional control valve through oil line pipe, and the upper mounted plate of said auxiliary cylinder piston rod and said hydraulic machine fixes.
Preferably, in the hydraulic system of above-mentioned hydraulic machine, said auxiliary cylinder packed space several times are less than master cylinder.
Preferably, in the hydraulic system of above-mentioned hydraulic machine, the number of said auxiliary cylinder is evenly distributed on around the said master cylinder during greater than one.
Based on the above-mentioned hydraulic machine hydraulic system that provides, the utility model also provides a kind of hydraulic machine, comprises fuselage, the hydraulic system that matches with said fuselage, and it has above-mentioned any described hydraulic system.
Can know that via above-mentioned technical scheme compared with prior art, the utility model openly provides a kind of hydraulic system of hydraulic machine, drive master cylinder by auxiliary small oil tank and accomplish entire work process.Because the cylinder diameter of small oil tank, bar footpath, stroke are all less than former common oil cylinder; The packed space that is auxiliary cylinder also is that several times are less than former common oil cylinder, so under the situation of the certain high pressure oil mass of high-pressure pump, the auxiliary cylinder piston moves downward; In this process (being idle running) that its piston rod drive main oil cylinder piston bar moves downward; The time short number that the used filling time just consumes than common oil cylinder has doubly also just improved the efficient of hydraulic machine, so also practiced thrift hydraulic pressure can; And pressing and punching is effective, makes the machine efficient energy-saving.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is the embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the accompanying drawing that provides.
Fig. 1 is the hydraulic system sketch map of the utility model hydraulic machine.
Among the last figure:
1 is that overflow valve, 2 is that high-pressure oil pump, 3 is that 3-position 4-way solenoid directional control valve, 4 is that upper mounted plate, 5 is that auxiliary cylinder, 6 is that master cylinder, 7 is that filling-valve, 8 is that sequence valve, 9 is a check valve.
The specific embodiment
The utility model example discloses a kind of hydraulic machine and its hydraulic system, has realized that hydraulic machine production efficiency increases substantially, and flattens, and punching is effective.
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to shown in the accompanying drawing 1, the hydraulic machine hydraulic system that present embodiment provides, it comprises master cylinder 6, the upper mounted plate 4 that fixes with master cylinder 6 piston-rod lower ends; The filling-valve 7 that is connected through oil line pipe with master cylinder 6 epicoele hydraulic fluid ports; The sequence valve 8 that is connected with filling-valve 7 with master cylinder 6 epicoele hydraulic fluid ports; The 3-position 4-way solenoid directional control valve 3 that is connected through oil line pipe with master cylinder 6 epicoele hydraulic fluid ports; Also comprise the auxiliary cylinder 5 parallelly connected with master cylinder 6; Auxiliary cylinder 5 epicoele hydraulic fluid ports are connected with 3-position 4-way solenoid directional control valve 3 actuator ports through oil line pipe; Auxiliary cylinder 5 cavity of resorption hydraulic fluid ports are connected with 3-position 4-way solenoid directional control valve 3 another actuator ports through oil line pipe, and the upper mounted plate 4 of auxiliary cylinder 5 piston rods and hydraulic machine fixes.
The hydraulic work system process of the hydraulic machine that provides in the present embodiment is following:
After hydraulic system started, high-pressure oil pump 2 was squeezed into hydraulic oil to hydraulic system.The 3-position 4-way solenoid directional control valve 3 of PLC system control gets into hydraulic oil to two auxiliary cylinder 5 epicoeles.Auxiliary cylinder 5 pistons move downward, and its piston rod drives master cylinder 6 piston rods and moves downward (idle running).Simultaneously the filling-valve 7 of master cylinder 6 is opened, and fuel tank fluid is sucked master cylinder 6 epicoeles fast, and descending along with master cylinder 6 pistons constantly filled.When being installed in mould on the upper mounted plate 4 of piston-rod lower end and touching workpiece, when oil pressure was elevated to the pressure that sequence valve 8 sets up, sequence valve 8 was opened, and closes filling-valve 7, squeezes into hydraulic oil to master cylinder 6 epicoeles.Mould is pressed to workpiece, accomplishes pressing, punch work to workpiece.3 switching-overs of the 3-position 4-way of PLC system control then solenoid directional control valve, master cylinder 6 cavity of resorption oil-feeds, the epicoele oil extraction, sequence valve 8 cuts out, and filling-valve 7 is opened, and a large amount of fluid flow back to fuel tank, master cylinder 6 piston arrives top dead centres, an operation cycle finishes.
The hydraulic system that the utility model provides and the operating efficiency of original hydraulic system are mainly reflected in former common oil cylinder piston idle running and two time length that auxiliary cylinder idle running fluid is filled.Because the packed space of auxiliary cylinder is little, and then the filling time is short, so efficient has just improved than original.
In order further to optimize technique scheme, in the auxiliary cylinder that provides in the foregoing description, its packed space several times just can make the efficient of whole hydraulic machine improve less than former common oil cylinder.
In order further to optimize technique scheme, auxiliary cylinder 5 numbers that provide in the foregoing description are two, are distributed in the both sides of master cylinder; When two auxiliary cylinder 5 piston rods drive master cylinder 6 piston rods; Master cylinder 6 piston rod stress balances, oil cylinder the stable equilibrium move downward, and make the stress balance of whole hydraulic machine; Attractive in appearance, generous.
In order further to optimize technique scheme, reflux in order to prevent hydraulic oil, between the pumping hole of high-pressure oil pump and 3-position 4-way solenoid directional control valve, connect a check valve 9; To be kept constantly by the pressure in control system or loop in order making, behind check valve 9, to acquire an overflow valve 1, realize voltage stabilizing, pressure regulation, or the effect of pressure limiting; Behind check valve, can also connect a Pressure gauge, observe whole system pressure immediately.
Based on the hydraulic machine hydraulic system that provides in the foregoing description, the utility model also provides a kind of hydraulic machine, comprises fuselage, the hydraulic system that matches with fuselage, and this hydraulic system is each hydraulic system that provides in the foregoing description.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims (4)

1. the hydraulic system of a hydraulic machine comprises master cylinder (6), the upper mounted plate (4) that fixes with said master cylinder (6) piston-rod lower end; The filling-valve (7) that is connected through oil line pipe with said master cylinder (6) epicoele hydraulic fluid port; The sequence valve (8) that is connected with filling-valve (7) with said master cylinder (6) epicoele hydraulic fluid port; The 3-position 4-way solenoid directional control valve (3) that is connected through oil line pipe with said master cylinder (6) epicoele hydraulic fluid port; It is characterized in that, also comprise:
The auxiliary cylinder (5) parallelly connected with said master cylinder (6); Said auxiliary cylinder (5) epicoele hydraulic fluid port is connected with said 3-position 4-way solenoid directional control valve (3) actuator port through oil line pipe; Said auxiliary cylinder (5) cavity of resorption hydraulic fluid port is connected with another actuator port of said 3-position 4-way solenoid directional control valve (3) through oil line pipe, and the upper mounted plate (4) of said auxiliary cylinder (5) piston rod and said hydraulic machine fixes.
2. the hydraulic system of hydraulic machine according to claim 1 is characterized in that, said auxiliary cylinder (5) packed space several times are less than master cylinder (6).
3. the hydraulic system of hydraulic machine according to claim 1 is characterized in that, the number of said auxiliary cylinder (5) is evenly distributed on said master cylinder (6) on every side during greater than one.
4. hydraulic machine, comprise fuselage, with the hydraulic system that said fuselage matches, it is characterized in that said hydraulic system is any described hydraulic system among the claim 1-3.
CN2011205026955U 2011-12-06 2011-12-06 Oil pressure machine and hydraulic system thereof CN202461389U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205026955U CN202461389U (en) 2011-12-06 2011-12-06 Oil pressure machine and hydraulic system thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205026955U CN202461389U (en) 2011-12-06 2011-12-06 Oil pressure machine and hydraulic system thereof

Publications (1)

Publication Number Publication Date
CN202461389U true CN202461389U (en) 2012-10-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205026955U CN202461389U (en) 2011-12-06 2011-12-06 Oil pressure machine and hydraulic system thereof

Country Status (1)

Country Link
CN (1) CN202461389U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103042147A (en) * 2012-12-31 2013-04-17 中国重型机械研究院股份公司 Heavy forging and pressing device and high-speed hydraulic control method
CN104088826A (en) * 2014-06-30 2014-10-08 苏州蓝王机床工具科技有限公司 Hydraulic quick feeding and returning system of hydraulic machine
CN104353770A (en) * 2014-10-23 2015-02-18 湖南明诚机械制造有限公司 High frequency hammer pile hydraulic system of hydraulic hammer pile machine and hammering cartridge valve of hydraulic hammer pile machine
CN105485078A (en) * 2015-12-31 2016-04-13 长安大学 Energy recycling hydraulic system of rotary drilling rig mast derricking mechanism
CN105935715A (en) * 2016-06-17 2016-09-14 安徽省东至县东鑫冲压件有限责任公司 Stamping part preliminary mold punching mechanism
WO2019183689A1 (en) * 2018-03-29 2019-10-03 Dos Santos Edson Nicassio Aluizio Press unit

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103042147A (en) * 2012-12-31 2013-04-17 中国重型机械研究院股份公司 Heavy forging and pressing device and high-speed hydraulic control method
CN103042147B (en) * 2012-12-31 2014-07-02 中国重型机械研究院股份公司 Heavy forging and pressing device and high-speed hydraulic control method
CN104088826A (en) * 2014-06-30 2014-10-08 苏州蓝王机床工具科技有限公司 Hydraulic quick feeding and returning system of hydraulic machine
CN104353770A (en) * 2014-10-23 2015-02-18 湖南明诚机械制造有限公司 High frequency hammer pile hydraulic system of hydraulic hammer pile machine and hammering cartridge valve of hydraulic hammer pile machine
CN104353770B (en) * 2014-10-23 2016-03-23 湖南明诚机械制造有限公司 Hydraulic hammer stake machine high frequency is hammered stake hydraulic system into shape and is beaten hammer inserted valve
CN105485078A (en) * 2015-12-31 2016-04-13 长安大学 Energy recycling hydraulic system of rotary drilling rig mast derricking mechanism
CN105935715A (en) * 2016-06-17 2016-09-14 安徽省东至县东鑫冲压件有限责任公司 Stamping part preliminary mold punching mechanism
WO2019183689A1 (en) * 2018-03-29 2019-10-03 Dos Santos Edson Nicassio Aluizio Press unit

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