CN109795148A - The hydraulic system of the hydraulic press of servo motor pump group driving - Google Patents
The hydraulic system of the hydraulic press of servo motor pump group driving Download PDFInfo
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- CN109795148A CN109795148A CN201910159661.1A CN201910159661A CN109795148A CN 109795148 A CN109795148 A CN 109795148A CN 201910159661 A CN201910159661 A CN 201910159661A CN 109795148 A CN109795148 A CN 109795148A
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- 239000000446 fuel Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
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Abstract
The invention discloses a kind of hydraulic systems of hydraulic press, including servo motor pump group, sliding block, master cylinder and kicker cylinder, servo motor pump group includes multiple servo motor pumps, servo motor pump includes servo motor and pump, solenoid valve block is connected in servo motor pump group, cavity of resorption draining valve and cavity of resorption inlet valve are connected between solenoid valve block and kicker cylinder, epicoele inlet valve is connected between solenoid valve block and master cylinder, epicoele inlet valve oil inlet, cavity of resorption draining valve oil extraction, flow, which is controlled, by servo motor pump group carries out sliding block downslide step-less adjustment, prefill valve oil suction makes sliding block enter quick slip-down state, auxiliary oil way is also connected in servo motor pump group, auxiliary oil way pumps driving by any servo motor in servo motor pump group.The hydraulic system of hydraulic press of the present invention eliminates big orifice proportioning valve, and no throttling happens, and energy consumption depends on revolving speed and pressure size, reduces idle work and generates, keeps whole equipment calorific value smaller, reduce the failure rate of hydraulic press.
Description
Technical field
The present invention relates to hydraulic system fields, more particularly to a kind of hydraulic pressure system of the hydraulic press of servo motor pump group driving
System.
Background technique
Traditional equipment provides big flow using accumulator group, guarantees sliding block process speed, its working principle is that: in auxiliary
Between, ordinary motor pump group gives always accumulator filling liquid accumulation of energy, when need using when, pass through switch Solenoid ball valve abrupt release
Out.Moment is discharged in accumulator, traditional equipment vibration is bigger, generates shadow to high-precision sensor in equipment and safety device
It rings, reduces overall performance；Since ordinary motor is working always, and the throttling of big orifice Dg35 proportioning valve uses, and causes to set
Preparation heat is big, and cooling device type selecting is also larger.
Since traditional equipment uses threephase asynchronous machine and plunger pump, volume is big, heavier-weight, general ordinary motor pump
Group uses horizontal installation, is laid in plane on upper beam, occupied space is also bigger, in addition also to place accumulator group, and consider
Service clearance；Due to upper mounting plate insufficient space, electric cabinet uses underneath type, and occupation area of equipment increases.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of hydraulic systems of hydraulic press, eliminate big orifice ratio
Valve, no throttling happen, energy consumption depend on revolving speed and pressure size, reduce idle work generate, make whole equipment calorific value compared with
It is small, reduce the failure rate of hydraulic press.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of hydraulic pressure system of hydraulic press is provided
System, including servo motor pump group, sliding block and the master cylinder and kicker cylinder that are connected to sliding block or more two sides, the servo motor pump group
It is connect with oil sources for driving oil sources fuel feeding, the servo motor pump group includes multiple servo motor pumps, the servo motor pump
Including servo motor and the pump driven by servo motor, solenoid valve block, the electromagnetism are connected in the servo motor pump group
It is connected with cavity of resorption draining valve and cavity of resorption inlet valve between valve group and kicker cylinder, epicoele oil inlet is connected between solenoid valve block and master cylinder
Valve, the epicoele inlet valve oil inlet, cavity of resorption draining valve oil extraction, sliding block enter downstream state, are controlled and are flowed by servo motor pump group
Amount carries out sliding block downslide step-less adjustment, is connected with prefill valve on the master cylinder, the prefill valve oil suction make sliding block by be self-possessed into
Enter quick slip-down state, auxiliary oil way is also connected in the servo motor pump group, the auxiliary oil way is pumped by servo motor
Any servo motor in group pumps driving.
In a preferred embodiment of the present invention, the cavity of resorption draining valve is proportional flow control valve, is arranged by proportional flow control valve
Oil keeps the quick slip-down state of sliding block stepless adjustable.
In a preferred embodiment of the present invention, cavity of resorption safety is also connected between the kicker cylinder and cavity of resorption inlet valve
Valve.
In a preferred embodiment of the present invention, slow lower height is connected between the cavity of resorption inlet valve and cavity of resorption draining valve
Press switching valve.
In a preferred embodiment of the present invention, the auxiliary oil way includes the auxiliary oil inlet for controlling oil circuit on-off
Valve.
In a preferred embodiment of the present invention, it is also connected with the spare oil circuit of lower die on the auxiliary inlet valve, under described
The spare oil circuit of upper mold is also connected on the spare oil circuit of mould.
In a preferred embodiment of the present invention, the spare oil circuit of the lower die and the spare oil circuit of upper mold include multiple be used for
Control the solenoid valve of oil circuit on-off.
In a preferred embodiment of the present invention, the pump is vane pump or duplex gear pump.
The beneficial effects of the present invention are: the hydraulic system of hydraulic press of the present invention, eliminates big orifice proportioning valve, no throttling feelings
Condition occurs, and energy consumption depends on revolving speed and pressure size, reduces idle work and generates, keep whole equipment calorific value smaller, reduces hydraulic
The failure rate of machine.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is that the hydraulic pressure system of hydraulic press of the present invention unifies the structural schematic diagram of preferred embodiment；
The components in the drawings are labeled as follows: 1, servo motor pump group, 2, sliding block, 3, master cylinder, 4, kicker cylinder, 5, solenoid valve block,
6, cavity of resorption draining valve, 7, cavity of resorption inlet valve, 8, prefill valve, 9, auxiliary oil way, 10, cavity of resorption safety valve, 11, high/low pressure cut-over valve,
12, inlet valve, 13, the spare oil circuit of lower die, 14, the spare oil circuit of upper mold, 15, epicoele inlet valve, 16, solenoid valve, 17, servo are assisted
Motor, 18, pump.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Referring to Fig. 1, a kind of hydraulic system of hydraulic press, including servo motor pump group 1, sliding block 2 and it is connected to sliding block 2
The master cylinder 3 and kicker cylinder 4 of upper and lower two sides, servo motor pump group 1 are connect for driving oil sources fuel feeding, servo motor pump group with oil sources
1 includes that multiple servo motors pump, and servo motor pump includes servo motor 17 and the pump 18 by servo motor driving, servo motor
It is connected with solenoid valve block 5 in pump group 1, cavity of resorption draining valve 6 and cavity of resorption inlet valve 7 are connected between solenoid valve block 5 and kicker cylinder 4,
Epicoele inlet valve 15,15 oil inlet of epicoele inlet valve, 6 oil extraction of cavity of resorption draining valve, sliding block 2 are connected between solenoid valve block 5 and master cylinder 3
Into downstream state, flow is controlled by servo motor pump group 1 and carries out 2 downslide step-less adjustment of sliding block, is connected with filling liquid on master cylinder 3
Valve 8,8 oil suction of prefill valve make sliding block 2 by from quick slip-down state is reentered, it is oily that auxiliary are also connected in servo motor pump group 1
Road 9, auxiliary oil way 9 pump driving by any servo motor in servo motor pump group 1.When 2 backhaul of sliding block, according to required technique
Speed requirement, adjustable using servo motor revolving speed, 2 velocity interpolation of sliding block is stepless adjustable.
In addition, cavity of resorption draining valve 6 be proportional flow control valve, by proportional flow control valve oil extraction make the quick slip-down state of sliding block 2 without
Grade is adjustable.
In addition, being also connected with cavity of resorption safety valve 10 between kicker cylinder 4 and cavity of resorption inlet valve 7.
In addition, being connected with lower high/low pressure cut-over valve 11 slowly between cavity of resorption inlet valve 7 and cavity of resorption draining valve 6, it is more than under slow
When 12MPa pressure, high pressure pump group is automatically switched to.
In addition, auxiliary oil way 9 includes the auxiliary inlet valve 12 for controlling oil circuit on-off.Because of auxiliary oil way 9 and main oil
Road will not move at the same time, and auxiliary oil way 9 needs oil inlet, can borrow servo motor pump group 1, and flow comes by the revolving speed of servo motor
Control.Non-cutting time, servo motor revolving speed are 0, and idle work is avoided to generate.
In addition, being also connected with the spare oil circuit 13 of lower die on auxiliary inlet valve 12, it is also connected on the spare oil circuit 13 of lower die
The spare oil circuit 14 of mould.
In addition, the spare oil circuit 13 of lower die and the spare oil circuit 14 of upper mold include multiple for controlling the solenoid valve of oil circuit on-off
16。
In addition, pump is vane pump or duplex gear pump, the characteristics of servo motor pump group: fast response time, pressure flow
Closed-loop control, low noise, overload capacity are strong etc..
The specific working principle is as follows for the hydraulic system of hydraulic press of the present invention: when sliding block 2 needs downlink, 8 oil suction of prefill valve makes
Sliding block 2 by the self weight of itself carry out it is fast under, need it is slow under when 1 oil inlet of servo motor pump group, 15 oil inlet of epicoele inlet valve, cavity of resorption
6 oil extraction of draining valve realizes that pressure and strength are stepless adjustable, when being more than certain pressure under slow, by descending high/low pressure cut-over valve 11 slowly
High pressure valve group is automatically switched to, cavity of resorption draining valve 6 carries out oil extraction, and stepless adjustable under realizing fastly, kicker cylinder 4 drives sliding 2 pieces of backhauls
When, 7 oil inlet of cavity of resorption inlet valve, adjustable using servo motor revolving speed, 2 velocity interpolation of sliding block is stepless adjustable.
It is different from the prior art, the hydraulic system of hydraulic press of the present invention, eliminates big orifice proportioning valve, no throttling situation hair
Raw, energy consumption depends on revolving speed and pressure size, reduces idle work and generates, keeps whole equipment calorific value smaller, reduce hydraulic press
Failure rate.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (8)
1. a kind of hydraulic system of hydraulic press, which is characterized in that including servo motor pump group, sliding block and be connected to sliding block or more
The master cylinder and kicker cylinder of two sides, the servo motor pump group are connect for driving oil sources fuel feeding, the servo motor pump with oil sources
Group includes that multiple servo motors pump, and the servo motor pump includes servo motor and the pump driven by servo motor, described to watch
It takes and is connected with solenoid valve block in motor pump group, cavity of resorption draining valve and cavity of resorption oil inlet are connected between the solenoid valve block and kicker cylinder
Valve is connected with epicoele inlet valve, the epicoele inlet valve oil inlet, cavity of resorption draining valve oil extraction, sliding block between solenoid valve block and master cylinder
Into downstream state, flow is controlled by servo motor pump group and carries out sliding block downslide step-less adjustment, is connected with and fills on the master cylinder
Liquid valve, the prefill valve oil suction rely on sliding block from quick slip-down state is reentered, are also connected in the servo motor pump group
Auxiliary oil way, the auxiliary oil way pump driving by any servo motor in servo motor pump group.
2. the hydraulic system of the hydraulic press of servo motor pump group driving according to claim 1, which is characterized in that under described
Chamber draining valve is proportional flow control valve, keeps the quick slip-down state of sliding block stepless adjustable by proportional flow control valve oil extraction.
3. the hydraulic system of the hydraulic press of servo motor pump group driving according to claim 1, which is characterized in that described time
Cavity of resorption safety valve is also connected between journey cylinder and cavity of resorption inlet valve.
4. the hydraulic system of the hydraulic press of servo motor pump group driving according to claim 1, which is characterized in that under described
Lower high/low pressure cut-over valve slowly is connected between chamber inlet valve and cavity of resorption draining valve.
5. the hydraulic system of the hydraulic press of servo motor pump group driving according to claim 1, which is characterized in that described auxiliary
Helping oil circuit includes the auxiliary inlet valve for controlling oil circuit on-off.
6. the hydraulic system of the hydraulic press of servo motor pump group driving according to claim 1, which is characterized in that described auxiliary
It helps on inlet valve and is also connected with the spare oil circuit of lower die, be also connected with the spare oil circuit of upper mold on the spare oil circuit of lower die.
7. the hydraulic system of the hydraulic press of servo motor pump group driving according to claim 8, which is characterized in that under described
The spare oil circuit of mould and the spare oil circuit of upper mold include multiple for controlling the solenoid valve of oil circuit on-off.
8. the hydraulic system of the hydraulic press of servo motor pump group driving according to claim 1, which is characterized in that the pump
For vane pump or duplex gear pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910159661.1A CN109795148A (en) | 2019-03-04 | 2019-03-04 | The hydraulic system of the hydraulic press of servo motor pump group driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910159661.1A CN109795148A (en) | 2019-03-04 | 2019-03-04 | The hydraulic system of the hydraulic press of servo motor pump group driving |
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| Publication Number | Publication Date |
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| CN109795148A true CN109795148A (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910159661.1A Pending CN109795148A (en) | 2019-03-04 | 2019-03-04 | The hydraulic system of the hydraulic press of servo motor pump group driving |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000329104A (en) * | 1999-05-20 | 2000-11-28 | Kawasaki Hydromechanics Corp | Hydraulic control method for press |
| CN105298945A (en) * | 2015-11-27 | 2016-02-03 | 南通锻压设备股份有限公司 | Hydraulic system of quick pressing type hydraulic press |
| CN207028305U (en) * | 2017-07-03 | 2018-02-23 | 江苏国力锻压机床有限公司 | A kind of hydraulic press of quick return |
| CN208236791U (en) * | 2018-05-14 | 2018-12-14 | 江苏国力锻压机床有限公司 | The precision pressure control system of servo-pump control hydraulic press |
| CN210190682U (en) * | 2019-03-04 | 2020-03-27 | 无锡市鹏达海卓智能装备有限公司 | Hydraulic system of hydraulic machine driven by servo motor pump set |
-
2019
- 2019-03-04 CN CN201910159661.1A patent/CN109795148A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000329104A (en) * | 1999-05-20 | 2000-11-28 | Kawasaki Hydromechanics Corp | Hydraulic control method for press |
| CN105298945A (en) * | 2015-11-27 | 2016-02-03 | 南通锻压设备股份有限公司 | Hydraulic system of quick pressing type hydraulic press |
| CN207028305U (en) * | 2017-07-03 | 2018-02-23 | 江苏国力锻压机床有限公司 | A kind of hydraulic press of quick return |
| CN208236791U (en) * | 2018-05-14 | 2018-12-14 | 江苏国力锻压机床有限公司 | The precision pressure control system of servo-pump control hydraulic press |
| CN210190682U (en) * | 2019-03-04 | 2020-03-27 | 无锡市鹏达海卓智能装备有限公司 | Hydraulic system of hydraulic machine driven by servo motor pump set |
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Address after: 214000 No.1, Zhenye Road, Qianzhou supporting area, Huishan District, Wuxi City, Jiangsu Province Applicant after: WUXI PENGDA HAIZHUO INTELLIGENT EQUIPMENT Co.,Ltd. Address before: No. 1 Zhenye Road, Qianzhou Complementary District, Huishan District, Changzhou City, Jiangsu Province, 214000 Applicant before: WUXI PENGDA HAIZHUO INTELLIGENT EQUIPMENT Co.,Ltd. |
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