CN206035949U - Three jar synchronous hydraulic system of plate shearing machine - Google Patents

Three jar synchronous hydraulic system of plate shearing machine Download PDF

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Publication number
CN206035949U
CN206035949U CN201620868269.6U CN201620868269U CN206035949U CN 206035949 U CN206035949 U CN 206035949U CN 201620868269 U CN201620868269 U CN 201620868269U CN 206035949 U CN206035949 U CN 206035949U
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CN
China
Prior art keywords
hydraulic
valve
hydraulic cylinder
oil
cylinder
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620868269.6U
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Chinese (zh)
Inventor
莫中凯
吴博文
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Guangxi City College
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Guangxi City College
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Filing date
Publication date
Application filed by Guangxi City College filed Critical Guangxi City College
Priority to CN201620868269.6U priority Critical patent/CN206035949U/en
Application granted granted Critical
Publication of CN206035949U publication Critical patent/CN206035949U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a three jar synchronous hydraulic system of plate shearing machine, including oil tank, hydraulic pump, oil inlet filter and overflow valve, the oil inlet of hydraulic pump links to each other with the oil tank, the P mouth that the oil -out of hydraulic pump looped through oil inlet filter and check valve and tribit cross magenetic exchange valve is linked together, be provided with on the pipeline between oil inlet filter and the check valve with the communicating overflow valve of oil tank, be provided with the bypass of taking the energy storage ware on the pipeline between check valve and the tribit cross magenetic exchange valve. This novel structural design is reasonable, has realized that three jar synchronization actions of plate shearing machine and synchronous precision are high, with low costs, and the fault rate is low, long service life, pulse impact is little, moves more steadily, and it is faster to enable pneumatic cylinder functioning speed, saves operating time, have better pressurize and security performance.

Description

A kind of three cylinder synchronization hydraulic system of plate shearing machine
Technical field
The utility model is related to a kind of hydraulic system, specifically a kind of three cylinder synchronization hydraulic system of plate shearing machine.
Background technology
As industrial expansion, the demand of large-sized sheet material are increasing, the quality of its shearing quality is to a certain extent Industrial expansion is have impact on, but the quality of large-sized sheet material shearing quality is same depending on ultra-large type plate shearing machine hydraulic synchronous control system The height of step precision.The middle-size and small-size plate shearing machine of at present machine tool plant of country production mostly using series cylinder realizing synchronization, by The problems such as the hydraulic cylinder accuracy of manufacture and internal leakage, the synchronization accuracy of its hydraulic synchronous control system is not particularly suited for ultra-large type Plate shearing machine;In addition, existing hydraulic synchronous control system also can realize Synchronization Control using synchronous valve, but it is only applicable to even number System during individual hydraulic cylinder, and when hydraulic cylinder is three, then synchronization action relatively difficult to achieve.
Utility model content
The purpose of this utility model is to provide a kind of three cylinder synchronization hydraulic system of plate shearing machine, to solve above-mentioned background technology The problem of middle proposition.
For achieving the above object, the utility model provides following technical scheme:
A kind of three cylinder synchronization hydraulic system of plate shearing machine, including fuel tank, hydraulic pump, inlet oil filter and overflow valve, the liquid The oil-in of press pump is connected with fuel tank, and the oil-out of the hydraulic pump passes sequentially through inlet oil filter and check valve and 3-position 4-way The P mouths of solenoid directional control valve are connected, be provided with the pipeline between the inlet oil filter and check valve communicate with fuel tank overflow Stream valve, is provided with the bypass with accumulator on the pipeline between the check valve and three-position four-way electromagnetic directional valve;Described three For O-shaped, the A mouths of the three-position four-way electromagnetic directional valve are by hydraulic lock respectively with first for the Median Function of four-way electromagnetic reversing valve The rodless cavity of the oil-in of synchronous valve and the 3rd hydraulic cylinder is connected, the oil-out of first synchronous valve respectively with the first hydraulic pressure The rodless cavity connection of cylinder and second hydraulic cylinder;The second hydraulic cylinder and the 3rd rod chamber of hydraulic cylinder and entering for the second synchronous valve Hydraulic fluid port is connected, and the oil-out of the rod chamber of the first hydraulic cylinder and the second synchronous valve is by hydraulic lock and 3-position 4-way electricity The B mouths of magnetic reversal valve are connected, and the T mouths of the three-position four-way electromagnetic directional valve are connected with fuel tank;The first hydraulic cylinder, second Hydraulic cylinder and the 3rd hydraulic cylinder are the identical single-action hydraulic cylinder of model parameter, the first hydraulic cylinder, second hydraulic cylinder And the 3rd hydraulic cylinder rodless cavity at be provided with the safety valve connected with fuel tank.
As further program of the utility model:The accumulator is bladder accumulator.
As the utility model further scheme:The hydraulic pump is pluger type hydraulic pump.
Compared with prior art, the beneficial effects of the utility model are:Inlet oil filter is set, the liquid into system is filtered Force feed, reduces the possibility of card valve or blocking, reduces fault rate, and protection element increases the service life;Accumulator is set, system is reduced System pulsatile impact in operation, makes system operation more steady, and accumulator can be needed in system big as auxiliary power source in addition It is rapid during flow to supplement hydraulic oil, make the hydraulic cylinder speed of service faster, also save the working time;Check valve is set, it is to avoid hydraulic pressure Oily flow-reversing impingement hydraulic pump causes which to damage, and improves security performance;Hydraulic lock is set, pressure maintaining effect is played, in hydraulic pump not fuel feeding When remain to make hydraulic cylinder long-time to be maintained at a certain position;First synchronous valve and the second synchronous valve are set, and collective effect, so as to reality Three cylinder synchronization actions of existing first hydraulic cylinder, second hydraulic cylinder and the 3rd hydraulic cylinder, and synchronization accuracy is than series cylinder Mode is high, and the price of synchronous valve is relatively low, effectively reduces manufacturing cost;Safety valve, the security of protection system are set.
In sum, this new structural design rationally, realizes three cylinder synchronization action of plate shearing machine and synchronization accuracy is high, cost Low, fault rate is low, long service life;Pulsatile impact is little, and operation is more steady, can make the hydraulic cylinder speed of service faster, saves work Time;With preferable pressurize and security performance.
Description of the drawings
Structural representations of the Fig. 1 for three cylinder synchronization hydraulic system of plate shearing machine.
In figure:1- fuel tanks, 2- hydraulic pumps, 3- inlet oil filters, 4- overflow valves, 5- check valves, 6- accumulators, 7- tri- four Electric change valve, 8- hydraulic locks, the first synchronous valves of 9-, 10- safety valves, 11- first hydraulic cylinders, 12- second hydraulic cylinders, 13- 3rd hydraulic cylinder, the second synchronous valves of 14-.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only the utility model a part of embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1, a kind of three cylinder synchronization hydraulic system of plate shearing machine, including fuel tank 1, hydraulic pump 2, inlet oil filter 3 and Overflow valve 4, the oil-in of the hydraulic pump 2 are connected with fuel tank 1, and the oil-out of the hydraulic pump 2 passes sequentially through inlet oil filter 3 And check valve 5 is connected with the P mouths of three-position four-way electromagnetic directional valve 7, the pipeline between the inlet oil filter 3 and check valve 5 On be provided with the overflow valve 4 communicated with fuel tank 1, on the pipeline between the check valve 5 and three-position four-way electromagnetic directional valve 7 arrange There is the bypass with accumulator 6;The Median Function of the three-position four-way electromagnetic directional valve 7 is O-shaped, the 3-position 4-way electromagnetic switch The A mouths of valve 7 are connected with the rodless cavity of the oil-in and the 3rd hydraulic cylinder 13 of the first synchronous valve 9 respectively by hydraulic lock 8, described The oil-out of the first synchronous valve 9 is connected with the rodless cavity of first hydraulic cylinder 11 and second hydraulic cylinder 12 respectively;Second hydraulic pressure The rod chamber of 12 cylinders and the 3rd hydraulic cylinder 13 is connected with the oil-in of the second synchronous valve 14, and the first hydraulic cylinder 11 has bar The oil-out of chamber and the second synchronous valve 14 is connected with the B mouths of three-position four-way electromagnetic directional valve 7 by hydraulic lock 8, and described three The T mouths of position four-way electromagnetic reversing valve 7 are connected with fuel tank 1;The first hydraulic cylinder 11, second hydraulic cylinder 12 and the 3rd hydraulic cylinder 13 For the identical single-action hydraulic cylinder of model parameter, the first hydraulic cylinder 11, second hydraulic cylinder 12 and the 3rd hydraulic cylinder 13 Rodless cavity at be provided with the safety valve 10 connected with fuel tank 1.
Operation principle of the present utility model is:Inlet oil filter 3 is set, the hydraulic oil into system is filtered, card valve is reduced Or the possibility of blocking, fault rate is reduced, protection element increases the service life;Accumulator 6 is set, system is reduced in operation Pulsatile impact, makes system operation more steady, and accumulator 6, can be rapid when system needs big flow used as auxiliary power source in addition Hydraulic oil is supplemented, the hydraulic cylinder speed of service is made faster, is also saved the working time;Check valve 5 is set, it is to avoid hydraulic oil flow-reversing impingement Hydraulic pump 2 causes which to damage, and improves security performance;Hydraulic lock 8 is set, is played pressure maintaining effect, is remained to make in 2 not fuel feeding of hydraulic pump Hydraulic cylinder long-time is maintained at a certain position;First synchronous valve 9 and the second synchronous valve 14 are set, and collective effect, so that realize Three cylinder synchronization actions of one hydraulic cylinder 11, second hydraulic cylinder 12 and the 3rd hydraulic cylinder 13, and synchronization accuracy compares series cylinder Mode will height, and the price of synchronous valve is relatively low, effectively reduces manufacturing cost;Safety valve 10, the peace of protection system are set Quan Xing.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new The scope of type is by claims rather than described above is limited, it is intended that the equivalency fallen in claim is contained All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as restriction Involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity Using specification as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art Understandable other embodiment.

Claims (3)

1. three cylinder synchronization hydraulic system of a kind of plate shearing machine, including fuel tank, hydraulic pump, inlet oil filter and overflow valve, its feature exists In the oil-in of the hydraulic pump is connected with fuel tank, and the oil-out of the hydraulic pump passes sequentially through inlet oil filter and check valve It is connected with the P mouths of three-position four-way electromagnetic directional valve, is provided with the pipeline between the inlet oil filter and check valve and oil The overflow valve that case is communicated, is provided with the side with accumulator on the pipeline between the check valve and three-position four-way electromagnetic directional valve Road;The Median Function of the three-position four-way electromagnetic directional valve is O-shaped, and the A mouths of the three-position four-way electromagnetic directional valve pass through hydraulic pressure Lock is connected with the rodless cavity of the oil-in and the 3rd hydraulic cylinder of the first synchronous valve respectively, the oil-out point of first synchronous valve Do not connect with the rodless cavity of first hydraulic cylinder and second hydraulic cylinder;The rod chamber and of the second hydraulic cylinder and the 3rd hydraulic cylinder The oil-in of two synchronous valves is connected, and the oil-out of the rod chamber of the first hydraulic cylinder and the second synchronous valve passes through hydraulic lock It is connected with the B mouths of three-position four-way electromagnetic directional valve, the T mouths of the three-position four-way electromagnetic directional valve are connected with fuel tank;Described One hydraulic cylinder, second hydraulic cylinder and the 3rd hydraulic cylinder be the identical single-action hydraulic cylinder of model parameter, first hydraulic pressure The safety valve connected with fuel tank is provided with the rodless cavity of cylinder, second hydraulic cylinder and the 3rd hydraulic cylinder.
2. three cylinder synchronization hydraulic system of plate shearing machine according to claim 1, it is characterised in that the accumulator is gasbag-type Accumulator.
3. three cylinder synchronization hydraulic system of plate shearing machine according to claim 1, it is characterised in that the hydraulic pump is plunger type Hydraulic pump.
CN201620868269.6U 2016-08-11 2016-08-11 Three jar synchronous hydraulic system of plate shearing machine Expired - Fee Related CN206035949U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620868269.6U CN206035949U (en) 2016-08-11 2016-08-11 Three jar synchronous hydraulic system of plate shearing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620868269.6U CN206035949U (en) 2016-08-11 2016-08-11 Three jar synchronous hydraulic system of plate shearing machine

Publications (1)

Publication Number Publication Date
CN206035949U true CN206035949U (en) 2017-03-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620868269.6U Expired - Fee Related CN206035949U (en) 2016-08-11 2016-08-11 Three jar synchronous hydraulic system of plate shearing machine

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112743016A (en) * 2020-12-30 2021-05-04 黎明压型机械有限公司 High-speed keel machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112743016A (en) * 2020-12-30 2021-05-04 黎明压型机械有限公司 High-speed keel machine

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170322

Termination date: 20170811