CN206035929U - Large -scale plate shearing machine hydraulic control system - Google Patents
Large -scale plate shearing machine hydraulic control system Download PDFInfo
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- CN206035929U CN206035929U CN201620868287.4U CN201620868287U CN206035929U CN 206035929 U CN206035929 U CN 206035929U CN 201620868287 U CN201620868287 U CN 201620868287U CN 206035929 U CN206035929 U CN 206035929U
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Abstract
The utility model discloses a large -scale plate shearing machine hydraulic control system, including oil tank, hydraulic pump, first pneumatic cylinder, second pneumatic cylinder and third pneumatic cylinder, the oil inlet of hydraulic pump links to each other with the oil tank, the oil -out of hydraulic pump is linked together through the P mouth of check valve with second switching -over valve, be provided with the overflow bypass of taking pilot operated compound relief valve on the pipeline between hydraulic pump and the check valve, guide's class control hydraulic fluid port of pilot operated compound relief valve is linked together with the P mouth of first switching -over valve, the A mouth of first switching -over valve is connected with first overflow valve, the B mouth of first switching -over valve is connected with the second overflow valve, the T mouth of first switching -over valve and second switching -over valve links to each other with the oil tank. This novel structural design is reasonable, has realized that three jar synchronization actions of large -scale plate shearing machine and synchronous precision are high, and with low costs, the security performance is good, long service life, and concrete multistage pressure adjustment function satisfies its work demand simultaneously.
Description
Technical field
The utility model is related to a kind of hydraulic system, specifically a kind of large-scale plate shearing machine hydraulic control system.
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, existing hydraulic synchronous control system also can realize Synchronization Control using synchronous valve, but be only applicable to even number liquid
System during cylinder pressure, and when hydraulic cylinder is three, then synchronization action relatively difficult to achieve；In addition, existing large-scale plate shearing machine pressure
Can not realize that different stage is adjusted, cause its condition of work to be restricted.
Utility model content
The purpose of this utility model is to provide a kind of large-scale plate shearing machine hydraulic control system, 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 large-scale plate shearing machine hydraulic control system, including fuel tank, hydraulic pump, first hydraulic cylinder, second hydraulic cylinder and
Three hydraulic cylinders, the oil-in of the hydraulic pump are connected with fuel tank, and the oil-out of the hydraulic pump passes through check valve and the second commutation
The P mouths of valve are connected；The bypass of the overflow with pilot operated compound relief valve, institute is provided with pipeline between the hydraulic pump and check valve
The control port of pilot stage for stating pilot operated compound relief valve is connected with the P mouths of the first reversal valve, the A mouths of first reversal valve with
First overflow valve connects, and the B mouths of first reversal valve are connected with the second overflow valve；First reversal valve and the second reversal valve
T mouths be connected with fuel tank, the oil return opening of the pilot operated compound relief valve, the first overflow valve and the second overflow valve is connected with fuel tank；Institute
The Median Function of the second reversal valve is stated for O-shaped, the A mouths of second reversal valve oil-in and the 3rd respectively with the first synchronous valve
The rodless cavity of hydraulic cylinder is connected, and the oil-out of first synchronous valve is respectively with first hydraulic cylinder and second hydraulic cylinder without bar
Chamber connects；The rod chamber of the second hydraulic cylinder and the 3rd hydraulic cylinder is connected with the oil-in of the second synchronous valve, and described first
The oil-out of the rod chamber of hydraulic cylinder and the second synchronous valve is connected with the B mouths of the second reversal valve；The first hydraulic cylinder,
Two hydraulic cylinders and the 3rd hydraulic cylinder are the identical single-action hydraulic cylinder of model parameter, the first hydraulic cylinder, the second hydraulic pressure
The safety valve connected with fuel tank is provided with the rodless cavity of cylinder and the 3rd hydraulic cylinder.
As further program of the utility model：First reversal valve and the second reversal valve are Median Function for O
The three-position four-way electromagnetic directional valve of type.
As the utility model further scheme：The hydraulic pump is pluger type hydraulic pump.
As the utility model further scheme：First overflow valve and the second overflow valve are Direct Action Type overflow
Valve, and the setting value of the first overflow valve and the second overflow valve is less than the setting value of pilot operated compound relief valve.
Compared with prior art, the beneficial effects of the utility model are：Check valve is set, it is to avoid hydraulic oil flow-reversing impingement liquid
Press pump causes which to damage, and improves security performance；First synchronous valve and the second synchronous valve are set, and collective effect, so that realize first
Three cylinder synchronization actions of hydraulic cylinder, second hydraulic cylinder and the 3rd hydraulic cylinder, and synchronization accuracy than series cylinder mode will
Height, and the price of synchronous valve is relatively low, effectively reduces manufacturing cost；Safety valve, the security of protection system are set；By elder generation
The use of conduction overflow valve, the first reversal valve, the first overflow valve and the second overflow valve realizes that the multistage pressure of system is adjusted so that
Large-scale plate shearing machine can be realized adjusting according to the needs of different pressures.
In sum, this new structural design rationally, realizes three cylinder synchronization action of large-scale plate shearing machine and synchronization accuracy is high,
Low cost, has a safety feature, long service life, while concrete multistage pressure regulatory function, meets its work requirements.
Description of the drawings
Fig. 1 is the structural representation of large-scale plate shearing machine hydraulic control system.
In figure：1- fuel tanks, 2- hydraulic pumps, 3- pilot operated compound relief valves, the first reversal valves of 4-, the first overflow valves of 5-, 6- second
Overflow valve, 7- check valves, the second reversal valves of 8-, the first synchronous valves of 9-, 10- safety valves, 11- first hydraulic cylinders, the second hydraulic pressure of 12-
Cylinder, the 3rd hydraulic cylinders of 13-, 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 large-scale plate shearing machine hydraulic control system, including fuel tank 1, hydraulic pump 2, first hydraulic cylinder 11,
Second hydraulic cylinder 12 and the 3rd hydraulic cylinder 13, the oil-in of the hydraulic pump 2 are connected with fuel tank 1, the oil-out of the hydraulic pump 2
It is connected with the P mouths of the second reversal valve 8 by check valve 7；Band is provided with pipeline between the hydraulic pump 2 and check valve 7
The P mouths of the overflow bypass of pilot operated compound relief valve 3, the control port of the pilot stage of the pilot operated compound relief valve 3 and the first reversal valve 4
It is connected, the A mouths of first reversal valve 4 are connected with the first overflow valve 5, the B mouths and the second overflow valve of first reversal valve 4
6 connections；The T mouths of first reversal valve 4 and the second reversal valve 8 are connected with fuel tank 1, the pilot operated compound relief valve 3, the first overflow
The oil return opening of valve 5 and the second overflow valve 6 is connected with fuel tank 1；The Median Function of second reversal valve 8 is O-shaped, and described second changes
It is connected with the rodless cavity of the oil-in and the 3rd hydraulic cylinder 13 of the first synchronous valve 9 to the A mouths of valve 8 respectively, described first is synchronous
The oil-out of valve 9 is connected with the rodless cavity of first hydraulic cylinder 11 and second hydraulic cylinder 12 respectively；The second hydraulic cylinder 12 and
The rod chamber of three hydraulic cylinders 13 is connected with the oil-in of the second synchronous valve 14, the rod chamber of the first hydraulic cylinder 11 and second
The oil-out of synchronous valve 14 is connected with the B mouths of the second reversal valve 8；The first hydraulic cylinder 11, second hydraulic cylinder 12 and
Three hydraulic cylinders 13 are the identical single-action hydraulic cylinder of model parameter, the first hydraulic cylinder 11, second hydraulic cylinder 12 and the
The safety valve 10 connected with fuel tank 1 is provided with the rodless cavity of three hydraulic cylinders 13.
Operation principle of the present utility model is：Check valve 7 is set, it is to avoid hydraulic oil flow-reversing impingement hydraulic pump 2 causes which to damage
It is bad, improve security performance；First synchronous valve 9 and the second synchronous valve 14 be set, collective effect, so as to realize first hydraulic cylinder 11,
Three cylinder synchronization actions of second hydraulic cylinder 12 and the 3rd hydraulic cylinder 13, and synchronization accuracy is higher than the mode of series cylinder,
And the price of synchronous valve is relatively low, effectively reduces manufacturing cost；Safety valve 10, the security of protection system are set；By elder generation
The use of conduction overflow valve 3, the first reversal valve 4, the first overflow valve 5 and the second overflow valve 6 realizes that the multistage pressure of system is adjusted,
Large-scale plate shearing machine is enabled according to the needs of different pressures to realize adjusting.
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 (4)
1. a kind of large-scale plate shearing machine hydraulic control system, including fuel tank, hydraulic pump, first hydraulic cylinder, second hydraulic cylinder and the 3rd
Hydraulic cylinder, it is characterised in that the oil-in of the hydraulic pump is connected with fuel tank, the oil-out of the hydraulic pump by check valve with
The P mouths of the second reversal valve are connected；Overflowing with pilot operated compound relief valve is provided with pipeline between the hydraulic pump and check valve
Stream bypass, the control port of the pilot stage of the pilot operated compound relief valve are connected with the P mouths of the first reversal valve, first commutation
The A mouths of valve are connected with the first overflow valve, and the B mouths of first reversal valve are connected with the second overflow valve；First reversal valve and
The T mouths of the second reversal valve are connected with fuel tank, oil return opening and the oil of the pilot operated compound relief valve, the first overflow valve and the second overflow valve
Case is connected；For O-shaped, the A mouths of second reversal valve are entered the Median Function of second reversal valve respectively with the first synchronous valve
The rodless cavity of hydraulic fluid port and the 3rd hydraulic cylinder is connected, the oil-out of first synchronous valve respectively with first hydraulic cylinder and the second liquid
The rodless cavity connection of cylinder pressure；The rod chamber of the second hydraulic cylinder and the 3rd hydraulic cylinder is connected with the oil-in of the second synchronous valve
Logical, the oil-out of the rod chamber of the first hydraulic cylinder and the second synchronous valve is connected with the B mouths of the second reversal valve；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. large-scale plate shearing machine hydraulic control system according to claim 1, it is characterised in that first reversal valve and
It is O-shaped three-position four-way electromagnetic directional valve that two reversal valves are Median Function.
3. large-scale plate shearing machine hydraulic control system according to claim 1, it is characterised in that the hydraulic pump is plunger type
Hydraulic pump.
4. large-scale plate shearing machine hydraulic control system according to claim 1, it is characterised in that first overflow valve and
Two overflow valves are direct-acting overflow valve, and the first overflow valve is less than setting for pilot operated compound relief valve with the setting value of the second overflow valve
Definite value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620868287.4U CN206035929U (en) | 2016-08-11 | 2016-08-11 | Large -scale plate shearing machine hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620868287.4U CN206035929U (en) | 2016-08-11 | 2016-08-11 | Large -scale plate shearing machine hydraulic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206035929U true CN206035929U (en) | 2017-03-22 |
Family
ID=58309259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620868287.4U Expired - Fee Related CN206035929U (en) | 2016-08-11 | 2016-08-11 | Large -scale plate shearing machine hydraulic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206035929U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222788A (en) * | 2018-02-06 | 2018-06-29 | 张阳鑫 | A kind of linkage lock anti-reflective bullet closed guard gate using Fluid pressure |
| CN109178798A (en) * | 2018-09-07 | 2019-01-11 | 广州焙欧机械设备有限公司 | A kind of continuous tunnel furnace hydraulic pressure tension system |
-
2016
- 2016-08-11 CN CN201620868287.4U patent/CN206035929U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222788A (en) * | 2018-02-06 | 2018-06-29 | 张阳鑫 | A kind of linkage lock anti-reflective bullet closed guard gate using Fluid pressure |
| CN109178798A (en) * | 2018-09-07 | 2019-01-11 | 广州焙欧机械设备有限公司 | A kind of continuous tunnel furnace hydraulic pressure tension system |
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Legal Events
| 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 |