CN106762517A - A kind of jack-up pumping plant for forcing press - Google Patents
A kind of jack-up pumping plant for forcing press Download PDFInfo
- Publication number
- CN106762517A CN106762517A CN201611141901.8A CN201611141901A CN106762517A CN 106762517 A CN106762517 A CN 106762517A CN 201611141901 A CN201611141901 A CN 201611141901A CN 106762517 A CN106762517 A CN 106762517A
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- CN
- China
- Prior art keywords
- valve
- plate
- base plate
- forcing press
- jack
- Prior art date
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0052—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for fluid driven presses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a kind of jack-up pumping plant for forcing press, box, stop valve and electro connecting pressure gauge are connect including base plate, fuel tank, ac motor, cylinder body, gear pump, thermometer, air driven pump, Sandwich plate valve one, Sandwich plate valve two, Sandwich plate valve three, Sandwich plate valve four, electric wire, it is characterised in that：Oil drain pan, fixed plate are provided with described base plate, described fuel tank is arranged on base plate, cover plate, connecting plate, pouring orifice, liquid level gauge, oil return opening, air source processing member, location-plate, free flow coupling, pipe clamp are provided with fuel tank, described laminating be provided with uniguide on valve base plate one, and tee pipe coupling is provided with uniguide, straight coupling is provided with described stop valve, and straight coupling is connected with joint, described electro connecting pressure gauge is arranged on stop valve.Be arranged on electro connecting pressure gauge on stop valve by the present invention, and the pressure in the forcing press course of work can be accurately shown by electro connecting pressure gauge, further improves the stability of press pressure.
Description
Technical field
The present invention relates to press technologies field, specifically a kind of jack-up pumping plant for forcing press.
Background technology
In the forcing press course of work, the pressure stability of forcing press directly affects the operating efficiency of forcing press, or even
Can be many at present that the steady of pressure needed for forcing press is kept using jack-up pumping plant because pressure transient causes forcing press to be stopped
It is qualitative.Existing forcing press jack-up pump is generally accumulator structure, and this structure has accumulator and can not smoothly release for a long time
Exoergic amount, the pressure needed for making forcing press produces certain fluctuation, and forcing press can be caused to stop operation under serious conditions, reduces
The operating efficiency of forcing press, and the jack-up pump of this structure also has inefficiency, security performance deficiency not high.
The content of the invention
The purpose of the present invention be directed to be currently used for forcing press jack-up pump exist pressure transient, inefficiency,
Security performance is not high, cause the ineffective problem of forcing press, there is provided a kind of reasonable in design, security performance are high, pressure
Good stability, long service life, the jack-up pumping plant for forcing press for improving forcing press operating efficiency.
Present invention solves the technical problem that the technical scheme taken is：
A kind of jack-up pumping plant for forcing press, including it is base plate, fuel tank, ac motor, cylinder body, gear pump, thermometer, pneumatic
Pump, Sandwich plate valve one, Sandwich plate valve two, Sandwich plate valve three, Sandwich plate valve four, electric wire connect box, stop valve and electro connecting pressure gauge, its feature
It is：Oil drain pan, fixed plate are provided with described base plate, and locating rack is provided with by connecting bolt in fixed plate, institute
The fuel tank stated is arranged on base plate, and cover plate, connecting plate, pouring orifice, liquid level gauge, oil return opening, source of the gas treatment are provided with fuel tank
Part, location-plate, free flow coupling, pipe clamp, are provided with described cover plate and laminate valve base plate one, laminate valve base plate two, and folded
Pressure valve base plate one, laminate to be provided with valve base plate two and laminate valve rebound, set by connecting bolt on described location-plate
There is bent plate, and joint is provided with bent plate, brass ball valve, described ac motor are provided with described free flow coupling
It is arranged on connecting plate by connecting bolt, described cylinder body is arranged on ac motor by connecting bolt, and in cylinder body
Sleeve is inside provided with, shaft coupling is provided with described sleeve, described gear pump is arranged on cylinder body, and gear pump is passed through
Connecting tube is connected with fuel tank, and described thermometer is arranged on fuel tank, and mounting blocks, muffler are provided with described air driven pump,
And mounting blocks are arranged on locating rack, described mounting blocks are connected by connecting tube with air source processing member, and on mounting blocks
It is provided with connection rubber tube, described Sandwich plate valve one, Sandwich plate valve two, Sandwich plate valve three are arranged at laminating on valve base plate one and laminate valve
On rebound, and two-position four-way solenoid valve, one-way throttle valve are provided with Sandwich plate valve one, two are provided with Sandwich plate valve two
Four way solenoid valve, check valve, one-way throttle valve, are provided with two-position four-way solenoid valve, check valve, one-way throttle on Sandwich plate valve three
Valve, described Sandwich plate valve four is arranged on and laminates laminating on valve rebound on valve base plate two, and is provided with two on Sandwich plate valve four
Position four-way solenoid valve, overflow valve, described laminating are provided with uniguide on valve base plate one, and three-way pipe is provided with uniguide
Joint, described electric wire is connect box and is fixed on connecting plate by support, and straight coupling is provided with described stop valve, and will
Straight coupling is connected with joint, and described electro connecting pressure gauge is arranged on stop valve, is provided with the cover plate of fuel tank and laminated
Valve base plate one, valve base plate two is laminated, and Sandwich plate valve one, Sandwich plate valve is respectively arranged with laminating valve base plate one, laminating valve base plate two
2nd, Sandwich plate valve three, Sandwich plate valve four, will laminate valve base plate one by uniguide respectively with air driven pump, laminate valve base plate two, gear
Pump is connected, it is possible to increase the stability of forcing press pressure in the course of the work, it is to avoid forcing press causes to stop production because of pressure transient
Situation occur, improve the operating efficiency of forcing press, electro connecting pressure gauge is arranged on stop valve, by electric contact pressure
Table can accurately show the pressure in the forcing press course of work, further improve the stability of press pressure.
Cleaner is provided with described pouring orifice.
Level control relay is provided with described liquid level gauge.
Described joint and laminate laminating on valve base plate one and be provided with seamless steel pipe between valve rebound, and in seamless steel
The junction for managing and laminating valve rebound is provided with O-ring seal.
Described mounting blocks are provided with seal with the junction of connection rubber tube.
Brass is provided with connecting tube between described gear pump and fuel tank and between mounting blocks and air source processing member
Ball valve.
The described valve rebound that laminates for laminating valve base plate one, laminating on valve base plate two is connected by communicating pipe and fuel tank respectively
Connect.
Described tee pipe coupling by connecting tube respectively with gear pump, laminate valve base plate two and be connected, and by T joint
Connecting tube between head and gear pump is fixed on pipe clamp.
The described valve base plate one that laminates is connected by uniguide with connection rubber tube.
Described gear pump is connected with shaft coupling.
Beneficial effect：The present invention is provided with the cover plate of fuel tank and laminates valve base plate one, laminates valve base plate two, and is laminating
Valve base plate one, laminate valve base plate two and be respectively arranged with Sandwich plate valve one, Sandwich plate valve two, Sandwich plate valve three, Sandwich plate valve four, valve will be laminated
Base plate one by uniguide respectively with air driven pump, laminate valve base plate two, gear pump and be connected, it is possible to increase forcing press is in the course of work
The stability of middle pressure, it is to avoid forcing press causes situation about stopping production to occur because of pressure transient, improves the work effect of forcing press
Rate, electro connecting pressure gauge is arranged on stop valve, in can accurately showing the forcing press course of work by electro connecting pressure gauge
Pressure, further improve press pressure stability.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is top view of the invention.
Fig. 3 is right view of the invention.
Fig. 4 is implementation schematic diagram of the invention.
In figure：1. base plate, 2. fuel tank, 3. ac motor, 4. cylinder body, 5. gear pump, 6. thermometer, 7. air driven pump, 8a.
Sandwich plate valve one, 8b. Sandwich plate valves two, 8c. Sandwich plate valves three, 8d. Sandwich plate valves four, 9. electric wire connect box, 10. stop valve, 11. electric contacts
Pressure gauge, 12. oil drain pans, 13. fixed plates, 14. cover plates, 15. connecting plates, 16. pouring orifices, 17. liquid level gauges, 18. oil return openings,
It is 19. air source processing members, 20. location-plates, 21. free flow couplings, 22. cleaners, 23. connecting bolts, 24. locating racks, 25. curved
Plate, 26. joints, 27. brass ball valves, 28a. laminate valve base plate one, 28b. and laminate valve base plate two, 29. and laminate valve rebound, 30.
Sleeve, 31. shaft couplings, 32. connecting tubes, 33. mounting blocks, 34. mufflers, 35. connection rubber tubes, 36. seals, 37. communicating pipes,
38. seamless steel pipes, 39.O types sealing ring, 40. two-position four-way solenoid valves, 41. check valves, 42. one-way throttle valves, 43. overflow valves,
44. level control relays, 45. uniguides, 46. tee pipe couplings, 47. supports, 48. straight couplings, 49. pipe clamps.
Specific embodiment
The present invention is described in detail below with reference to accompanying drawing.
As shown in accompanying drawing 1-4, a kind of jack-up pumping plant for forcing press, including base plate 1, fuel tank 2, ac motor 3, cylinder
Body 4, gear pump 5, thermometer 6, air driven pump 7, the 8a of Sandwich plate valve one, the 8b of Sandwich plate valve two, the 8c of Sandwich plate valve three, the 8d of Sandwich plate valve four, electrically
Line connects box 9, stop valve 10 and electro connecting pressure gauge 11, it is characterised in that：Oil drain pan 12 is provided with described base plate 1, is fixed
Plate 13, and locating rack 24 is provided with by connecting bolt 23 in fixed plate 13, can receive fuel tank 2 by oil drain pan 12 overflows
Oil, can reduce oil waste, environmental-protecting performance is improve again, described fuel tank 2 is arranged on base plate 1, on fuel tank 2 set
There are cover plate 14, connecting plate 15, pouring orifice 16, liquid level gauge 17, oil return opening 18, air source processing member 19, location-plate 20, free flow coupling
21st, pipe clamp 49, are provided with described cover plate 14 and laminate the 28a of valve base plate one, laminate the 28b of valve base plate two, and laminating valve base plate
One 28a, laminate to be provided with the 28b of valve base plate two and laminate valve rebound 29, cleaner 22 is provided with described pouring orifice 18,
The oil entered into fuel tank 2 by pouring orifice 18 can be filtered by cleaner 22, improve the capability and performance of oil, and then
The operating efficiency of jack-up pumping plant is improved, level control relay 44, described location-plate 20 are provided with described liquid level gauge 17
It is upper that bent plate 25 is provided with by connecting bolt 23, and joint 26 is provided with bent plate 25, described joint 26 with laminate valve bottom
Laminating on the 28a of plate one be provided between valve rebound 29 seamless steel pipe 38, and seamless steel pipe 38 with laminate valve rebound 29
Junction be provided with O-ring seal 39, seamless steel pipe 38 is improve by O-ring seal 39 and is laminated between valve rebound 29
Connection sealing, brass ball valve 27 is provided with described free flow coupling 21, described ac motor 3 is by connecting spiral shell
Bolt 23 is arranged on connecting plate 15, and described cylinder body 4 is arranged on ac motor 3 by connecting bolt, and is set in cylinder body 4
Sleeve 30 is equipped with, shaft coupling 31 is provided with described sleeve 30, described gear pump 5 is arranged on cylinder body 4, and by gear pump
5 are connected by connecting tube 32 with fuel tank 2, and described gear pump 5 is connected with shaft coupling 31, and described thermometer 6 is arranged on fuel tank 2
On, oil temperature that can be in real time reaction fuel tank 6 by thermometer 6 improves the security of jack-up pumping plant work, described air driven pump
Mounting blocks 33, muffler 34 are provided with 7, and mounting blocks 33 are arranged on locating rack 24, described mounting blocks 33 are by connecting
Adapter 32 is connected with air source processing member 19, and connection rubber tube 35 is provided with mounting blocks 33, described gear pump 5 and fuel tank 2
Between and the connecting tube 32 between mounting blocks 33 and air source processing member 19 on be provided with brass ball valve 27, described mounting blocks 33
The junction of connection rubber tube 35 is provided with seal 36, is improve between mounting blocks 33 and connection rubber tube 35 by seal 36
Connection sealing, the described 28a of valve base plate one that laminates is connected by uniguide 45 with connection rubber tube 35, and described laminates valve bottom
The 28a of plate one, to laminate and laminate valve rebound 29 respectively by being connected with fuel tank 2 communicating pipe 37 on the 28b of valve base plate two, described is folded
Plus the 8a of valve one, the 8b of Sandwich plate valve two, the 8c of Sandwich plate valve three are arranged at laminating laminating on valve rebound 29 on the 28a of valve base plate one, and
Two-position four-way solenoid valve 40, one-way throttle valve 42 are provided with the 8a of Sandwich plate valve one, two four are provided with the 8b of Sandwich plate valve two
Three-way electromagnetic valve 40, check valve 41, one-way throttle valve 42, two-position four-way solenoid valve 40, check valve is provided with the 8c of Sandwich plate valve three
41st, one-way throttle valve 42, the described 8d of Sandwich plate valve four is arranged on and laminates laminating on valve rebound 29 on the 28b of valve base plate two, and
Two-position four-way solenoid valve 40, overflow valve 43 are provided with the 8d of Sandwich plate valve four, described laminating be provided with list on the 28a of valve base plate one
To pipe 45, and tee pipe coupling 46 is provided with uniguide 45, described tee pipe coupling 46 by connecting tube 32 respectively with
Gear pump 5, the 28b of valve base plate two connections are laminated, and the connecting tube 32 between tee pipe coupling 32 and gear pump 5 is fixed on pipe clamp
On 49, described electric wire is connect box 9 and is fixed on connecting plate 15 by support 47, and straight-through connecing is provided with described stop valve 10
First 48, and straight coupling 48 is connected with joint 26, described electro connecting pressure gauge 11 is arranged on stop valve 10, in fuel tank 2
Cover plate 14 on be provided with and laminate the 28a of valve base plate one, laminate the 28b of valve base plate two, and laminating the 28a of valve base plate one, laminating valve bottom
The 28b of plate two is respectively arranged with the 8a of Sandwich plate valve one, the 8b of Sandwich plate valve two, the 8c of Sandwich plate valve three, the 8d of Sandwich plate valve four, will laminate valve base plate one
28a by uniguide 45 respectively with air driven pump 7, laminate the 28b of valve base plate two, gear pump 5 and be connected, it is possible to increase forcing press is in work
During pressure stability, it is to avoid forcing press because pressure transient cause stop production situation occur, improve the work of forcing press
Make efficiency, electro connecting pressure gauge 11 is arranged on stop valve 10, forcing press can accurately be shown by electro connecting pressure gauge 11
Pressure in the course of work, further improves the stability of press pressure.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented and do not receive aforesaid way
Limitation, as long as employing the improvement of various unsubstantialities that method of the present invention design and technical scheme are carried out, or without changing
Enter and design of the invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
Claims (10)
1. a kind of jack-up pumping plant for forcing press, including base plate, fuel tank, ac motor, cylinder body, gear pump, thermometer, gas
Dynamic pump, Sandwich plate valve one, Sandwich plate valve two, Sandwich plate valve three, Sandwich plate valve four, electric wire connect box, stop valve and electro connecting pressure gauge, and it is special
Levy and be：Oil drain pan, fixed plate are provided with described base plate, and locating rack are provided with by connecting bolt in fixed plate,
Described fuel tank is arranged on base plate, is provided with fuel tank at cover plate, connecting plate, pouring orifice, liquid level gauge, oil return opening, source of the gas
Reason part, location-plate, free flow coupling, pipe clamp, are provided with described cover plate and laminate valve base plate one, laminate valve base plate two, and
Valve base plate one is laminated, is laminated to be provided with valve base plate two and is laminated valve rebound, set by connecting bolt on described location-plate
Bent plate is equipped with, and joint is provided with bent plate, brass ball valve, described AC electrical are provided with described free flow coupling
Machine is arranged on connecting plate by connecting bolt, and described cylinder body is arranged on ac motor by connecting bolt, and in cylinder
Sleeve is provided with vivo, shaft coupling is provided with described sleeve, described gear pump is arranged on cylinder body, and gear pump is led to
Cross connecting tube to be connected with fuel tank, described thermometer is arranged on fuel tank, mounting blocks, noise reduction are provided with described air driven pump
Device, and mounting blocks are arranged on locating rack, described mounting blocks are connected by connecting tube with air source processing member, and in mounting blocks
On be provided with connection rubber tube, described Sandwich plate valve one, Sandwich plate valve two, Sandwich plate valve three are arranged at laminating laminating on valve base plate one
On valve rebound, and two-position four-way solenoid valve, one-way throttle valve are provided with Sandwich plate valve one, two are provided with Sandwich plate valve two
Position four-way solenoid valve, check valve, one-way throttle valve, are provided with two-position four-way solenoid valve, check valve, unidirectional section on Sandwich plate valve three
Stream valve, described Sandwich plate valve four is arranged on and laminates laminating on valve rebound on valve base plate two, and is provided with Sandwich plate valve four
Two-position four-way solenoid valve, overflow valve, described laminating are provided with uniguide on valve base plate one, and threeway is provided with uniguide
Pipe joint, described electric wire is connect box and is fixed on connecting plate by support, and straight coupling is provided with described stop valve, and
Straight coupling is connected with joint, described electro connecting pressure gauge is arranged on stop valve.
2. the jack-up pumping plant for forcing press according to claim 1, it is characterised in that：It is provided with described pouring orifice
Cleaner.
3. the jack-up pumping plant for forcing press according to claim 1, it is characterised in that：It is provided with described liquid level gauge
Level control relay.
4. the jack-up pumping plant for forcing press according to claim 1, it is characterised in that：Described joint with laminate valve bottom
Laminating on plate one be provided between valve rebound seamless steel pipe, and in seamless steel pipe and laminate the junction of valve rebound and set
There is O-ring seal.
5. the jack-up pumping plant for forcing press according to claim 1, it is characterised in that：Described mounting blocks be connected glue
The junction of pipe is provided with seal.
6. the jack-up pumping plant for forcing press according to claim 1, it is characterised in that：Described gear pump and fuel tank it
Between and the connecting tube between mounting blocks and air source processing member on be provided with brass ball valve.
7. the jack-up pumping plant for forcing press according to claim 1, it is characterised in that：It is described laminate valve base plate one,
Laminate and laminate valve rebound respectively by being connected with fuel tank communicating pipe on valve base plate two.
8. the jack-up pumping plant for forcing press according to claim 1, it is characterised in that：Described tee pipe coupling passes through
Connecting tube respectively with gear pump, laminate valve base plate two and be connected, and the connecting tube between tee pipe coupling and gear pump is fixed on
On pipe clamp.
9. the jack-up pumping plant for forcing press according to claim 1, it is characterised in that：The described valve base plate one that laminates leads to
Uniguide is crossed to be connected with connection rubber tube.
10. the jack-up pumping plant for forcing press according to claim 1, it is characterised in that：Described gear pump and shaft coupling
Device is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611141901.8A CN106762517A (en) | 2016-12-12 | 2016-12-12 | A kind of jack-up pumping plant for forcing press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611141901.8A CN106762517A (en) | 2016-12-12 | 2016-12-12 | A kind of jack-up pumping plant for forcing press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106762517A true CN106762517A (en) | 2017-05-31 |
Family
ID=58880387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611141901.8A Pending CN106762517A (en) | 2016-12-12 | 2016-12-12 | A kind of jack-up pumping plant for forcing press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762517A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006042619A1 (en) * | 2006-09-04 | 2008-03-20 | Voith Turbo H + L Hydraulic Gmbh & Co. Kg | Machine tool device for hydraulic system, has hydraulic pumps driven by electromotor, where hydraulic pumps are arranged in space that is limited by intermediate units and auxiliary units |
| CN201124581Y (en) * | 2007-11-21 | 2008-10-01 | 济南二机床集团有限公司 | Liquid charging device for press connector |
| CN202582854U (en) * | 2012-06-05 | 2012-12-05 | 北京中防恒立人防设备有限公司 | Hydraulic station for testing air tightness of butterfly valve |
| CN203239687U (en) * | 2013-05-27 | 2013-10-16 | 金丰（中国）机械工业有限公司 | Air-hydraulic pressure compensating device |
| CN203926228U (en) * | 2014-04-25 | 2014-11-05 | 上海工程技术大学 | A kind of compact hydraulic station |
| CN204729522U (en) * | 2015-06-08 | 2015-10-28 | 济南二机床集团有限公司 | A kind of pilot line for servo pressure brake system |
| CN206386240U (en) * | 2016-12-12 | 2017-08-08 | 安徽海拓志永智能装备股份有限公司 | A kind of jack-up pumping plant for forcing press |
-
2016
- 2016-12-12 CN CN201611141901.8A patent/CN106762517A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006042619A1 (en) * | 2006-09-04 | 2008-03-20 | Voith Turbo H + L Hydraulic Gmbh & Co. Kg | Machine tool device for hydraulic system, has hydraulic pumps driven by electromotor, where hydraulic pumps are arranged in space that is limited by intermediate units and auxiliary units |
| CN201124581Y (en) * | 2007-11-21 | 2008-10-01 | 济南二机床集团有限公司 | Liquid charging device for press connector |
| CN202582854U (en) * | 2012-06-05 | 2012-12-05 | 北京中防恒立人防设备有限公司 | Hydraulic station for testing air tightness of butterfly valve |
| CN203239687U (en) * | 2013-05-27 | 2013-10-16 | 金丰（中国）机械工业有限公司 | Air-hydraulic pressure compensating device |
| CN203926228U (en) * | 2014-04-25 | 2014-11-05 | 上海工程技术大学 | A kind of compact hydraulic station |
| CN204729522U (en) * | 2015-06-08 | 2015-10-28 | 济南二机床集团有限公司 | A kind of pilot line for servo pressure brake system |
| CN206386240U (en) * | 2016-12-12 | 2017-08-08 | 安徽海拓志永智能装备股份有限公司 | A kind of jack-up pumping plant for forcing press |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |
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| WD01 | Invention patent application deemed withdrawn after publication |