CN202952578U - Hydraulic system of ultrahigh-pressure hydraulic oil press - Google Patents
Hydraulic system of ultrahigh-pressure hydraulic oil press Download PDFInfo
- Publication number
- CN202952578U CN202952578U CN 201220752044 CN201220752044U CN202952578U CN 202952578 U CN202952578 U CN 202952578U CN 201220752044 CN201220752044 CN 201220752044 CN 201220752044 U CN201220752044 U CN 201220752044U CN 202952578 U CN202952578 U CN 202952578U
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- pump
- low
- ultrahigh
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model provides a hydraulic system of an ultrahigh-pressure hydraulic oil press. The hydraulic system is composed of an ultrahigh-pressure combined pump, an ultrahigh-pressure steering valve, a high-low-pressure integrated overflowing valve for controlling the pressure of an ultrahigh-pressure high-low-pressure combined pump, a low-pressure overflowing valve for controlling back stroke pressure of an oil cylinder, a throttling valve for controlling low-pressure squeezing speed, a pressing oil cylinder, an electro connecting pressure gauge, a pressure gauge hose assembly and a manual plunger pump; and the hydraulic system is provided with the electro connecting pressure gauge and a time relay, and is connected with the ultrahigh-pressure combined pump, the high-low-pressure integrated overflowing valve, the ultrahigh-pressure steering valve and the pressing oil cylinder through the pressure gauge hose assembly, so as to realize control. The hydraulic system has the beneficial effects that oil pressing process requirements of large-tonnage hydraulic oil presses and different oil materials can be met; and the system has the advantages of reasonable configuration, compact structure, small occupied space, high system pressure, energy conservation and environment friendliness, convenience for installation, maintenance and operation, and safety and reliability.
Description
Technical field
The utility model belongs to the hydraulic test technical field, is specifically related to a kind of ultrahigh-pressure hydraulic oil press hydraulic system.
Background technology
At present, Hydraulic oil press machine hydraulic system on market adopts gear pump and simple and easy plunger displacement pump to split form more and the mechanical handling valve forms, general simple and easy plunger displacement pump adopts brace and connecting rod framework, and the motor driven gear pump also drives simple and easy plunger displacement pump by crank link gear, and complex structure, the system pressure that this Hydraulic oil press machine hydraulic system exists is low, press speed is non-adjustable, complex structure, take up room large, power of motor is high, and system pressure is low, the operating maintenance inconvenience, the defects such as poor reliability.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and provides a kind of the ultrahigh-pressure hydraulic technology is applied to hydraulic oil press, solves the ultrahigh-pressure hydraulic oil press hydraulic system that the ultrahigh-pressure hydraulic technology is applied to conventional equipment.
The technical scheme that the utility model adopts is: a kind of ultrahigh-pressure hydraulic oil press hydraulic system, choke valve by super-pressure sundstrand pump, super-pressure reversal valve, the integrated overflow valve of high-low pressure of controlling super-pressure high-low pressure sundstrand pump pressure, the low pressure relief valve of controlling oil cylinder backhaul pressure, control low pressure press speed, pressing oil, electro connecting pressure gauge, Pressure gauge hose assembly, hand piston pump form; It is characterized in that described super-pressure sundstrand pump is comprised of low discharge super-high-pressure plunger pump and large flow gear pump, super-high-pressure plunger pump pressure reaches as high as 100Mpa, the highest 16Mpa of gear pump pressure; Described super-pressure reversal valve adopts integrated plunger type hand rotary valve; The integrated overflow valve of described high-low pressure is comprised of the high-pressure overflow valve of controlling respectively plunger displacement pump and gear pump pressure and low pressure relief valve one, the check valve of controlling the plunger pump liquid flow path direction, the check valve of control gear pump liquid flow path direction.
According to working condition requirement, set up low pressure relief valve two at oil cylinder backhaul oil circuit and controlled oil cylinder backhaul pressure, avoid the backhaul hypertonia to make oil cylinder impaired.
Require to have increased choke valve in the gear pump low tension loop speed in the time of can effectively controlling squeezing fast according to the milling process of different oil plants according to squeezing process.
System considers not affect squeezing in outage and power free situation, and system is provided with hand piston pump.
This hydraulic system arranges electro connecting pressure gauge and is connected with super-pressure reversal valve, pressing oil with super-pressure sundstrand pump, the integrated overflow valve of high-low pressure with the time relay and by the Pressure gauge hose assembly, realizes controlling.
Beneficial effect: the utility model can meet the milling process requirement of great tonnage hydraulic oil press and different oil plants, system arranges rationally, compact conformation, take up room little, system pressure is high, energy-conserving and environment-protective, installation and maintenance are easy to operate, safe and reliable.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Accompanying drawing is schematic diagram of the present utility model.
In figure: 1 electro connecting pressure gauge, 2 low pressure relief valve one, 3 pressing oils, 4 super-pressure reversal valves, 5 Pressure gauge hose assemblies, 6 super-high-pressure plunger pumps, 7 low pressure relief valve two, 8 gear pumps, 9 check valves, 10 high-pressure overflow valves, 11 hand piston pumps, 12 choke valves.
The specific embodiment
A kind of ultrahigh-pressure hydraulic oil press hydraulic system as shown in the figure, choke valve 12 by super-pressure sundstrand pump, super-pressure reversal valve 4, the integrated overflow valve of high-low pressure of controlling super-pressure high-low pressure sundstrand pump pressure, the low pressure relief valve 27 of controlling oil cylinder backhaul pressure, control low pressure press speed, pressing oil 3, electro connecting pressure gauge 1, Pressure gauge hose assembly 5, hand piston pump 11 form; Native system (1), startup: super-pressure reversal valve 4 is placed in meta, closes choke valve 12, starter motor, and super-high-pressure plunger pump 6 and gear pump 8 work, hydraulic medium is through check valve 9, super-pressure reversal valve 4 oil return casees; (2), low pressure squeezing: super-pressure reversal valve 4 is placed in right position, hydraulic medium enters pressing oil 3 epicoeles through check valve 9 and super-pressure reversal valve 4, oil cylinder cavity of resorption hydraulic medium is through super-pressure reversal valve 4 oil return casees, when system pressure is less than 10Mpa, require to regulate choke valve 12 according to the oil plant squeezing process, controlled pressure and speed, reach desirable squeezing effect; (3), high-pressure compressing: choke valve 12 cuts out, when pressure rise arrives 10Mpa, low pressure relief valve one 2 off-loads, only have high-pressure plunger pump 6 work, according to the requirement of oil plant squeezing process, adjust electro connecting pressure gauge 1 and the time relay, control squeeze pressure and time, reach desirable squeezing effect, maximum pressure can reach 55Mpa; (4), outage squeezing: when outage and power free situation, handle hand piston pump 11, complete the squeezing requirement; (5), return: after squeezing finishes, hydraulic medium enters the oil cylinder cavity of resorption through check valve 9, and oil cylinder rises, and the cylinder upper cavity oil hydraulic medium is through super-pressure reversal valve 4 oil return casees, and low pressure relief valve 27 set pressures are 1Mpa, play the safety valve effect.
Claims (2)
1. a ultrahigh-pressure hydraulic oil press hydraulic system, choke valve by super-pressure sundstrand pump, super-pressure reversal valve, the integrated overflow valve of high-low pressure of controlling super-pressure high-low pressure sundstrand pump pressure, the low pressure relief valve of controlling oil cylinder backhaul pressure, control low pressure press speed, pressing oil, electro connecting pressure gauge, Pressure gauge hose assembly, hand piston pump form; It is characterized in that: described super-pressure sundstrand pump is comprised of low discharge super-high-pressure plunger pump and large flow gear pump, and super-high-pressure plunger pump pressure reaches as high as 100Mpa, the highest 16Mpa of gear pump pressure; Described super-pressure reversal valve adopts integrated plunger type hand rotary valve; The integrated overflow valve of described high-low pressure is comprised of the high-pressure overflow valve of controlling respectively plunger displacement pump and gear pump pressure and low pressure relief valve one, the check valve of controlling the plunger pump liquid flow path direction, the check valve of control gear pump liquid flow path direction.
2. a kind of ultrahigh-pressure hydraulic oil press hydraulic system according to claim 1, is characterized in that: set up low pressure relief valve two at oil cylinder backhaul oil circuit, in the gear pump low tension loop, increase choke valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220752044 CN202952578U (en) | 2012-12-19 | 2012-12-19 | Hydraulic system of ultrahigh-pressure hydraulic oil press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220752044 CN202952578U (en) | 2012-12-19 | 2012-12-19 | Hydraulic system of ultrahigh-pressure hydraulic oil press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202952578U true CN202952578U (en) | 2013-05-29 |
Family
ID=48458172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220752044 Expired - Fee Related CN202952578U (en) | 2012-12-19 | 2012-12-19 | Hydraulic system of ultrahigh-pressure hydraulic oil press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202952578U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331937A (en) * | 2013-07-04 | 2013-10-02 | 天津市天锻压力机有限公司 | Numerical control hydraulic machine decompression system based on pressure feedback |
| CN105465067A (en) * | 2015-12-09 | 2016-04-06 | 沈阳飞研航空设备有限公司 | Multifunctional combined pump |
| CN108087369A (en) * | 2016-11-22 | 2018-05-29 | 重庆大江工业有限责任公司 | A kind of hydraulic pressure support leveling system for vehicle |
| CN113306194A (en) * | 2021-04-23 | 2021-08-27 | 天津中德应用技术大学 | Energy-saving efficient low-noise hydraulic system of press machine |
-
2012
- 2012-12-19 CN CN 201220752044 patent/CN202952578U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331937A (en) * | 2013-07-04 | 2013-10-02 | 天津市天锻压力机有限公司 | Numerical control hydraulic machine decompression system based on pressure feedback |
| CN105465067A (en) * | 2015-12-09 | 2016-04-06 | 沈阳飞研航空设备有限公司 | Multifunctional combined pump |
| CN108087369A (en) * | 2016-11-22 | 2018-05-29 | 重庆大江工业有限责任公司 | A kind of hydraulic pressure support leveling system for vehicle |
| CN113306194A (en) * | 2021-04-23 | 2021-08-27 | 天津中德应用技术大学 | Energy-saving efficient low-noise hydraulic system of press machine |
| CN113306194B (en) * | 2021-04-23 | 2023-01-24 | 天津中德应用技术大学 | Energy-saving efficient low-noise hydraulic system of press machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102168540B (en) | Hydraulic pumping unit with pressure compensation device | |
| CN202952578U (en) | Hydraulic system of ultrahigh-pressure hydraulic oil press | |
| CN201836132U (en) | Pressurization system of three-way pipe forming machine | |
| CN203641136U (en) | Hinge rod hydraulic pressurizing device and hydraulic press | |
| CN203769811U (en) | Self-help supercharging system with hydraulic supercharger and upright columns for hydraulic support | |
| CN104948538A (en) | Plate bending machine servo hydraulic system and construction method thereof | |
| CN203845759U (en) | Automatic-leveling hydraulic device of scissor lift | |
| CN202007654U (en) | Hydraulic pumping unit with pressure compensation device | |
| CN205639153U (en) | Supercharging device , hydraulic system and mechanical equipment | |
| CN103994042A (en) | Piston type hydraulic pump with crank connecting rod structure | |
| CN203892278U (en) | Manual liquid supercharging device | |
| CN1919555A (en) | Pressure device of plate adhesion machine | |
| CN104454707A (en) | Simple hydraulic system for bending machine | |
| CN201702967U (en) | Apparatus for implementing high-return force, quick return of hydrostatic press | |
| CN101514948B (en) | Quick pressurization system for steel pipe hydrostatic tester | |
| CN103835927B (en) | A kind of barrier film reciprocating booster pump with outer circulation hydraulic type plunger damping structure | |
| CN203756477U (en) | Diaphragm reciprocated booster pump with external-circulation hydraulic plunger damping structure | |
| CN203717500U (en) | Plate shearing synchronous hydraulic control system based on double-output-shaft motor | |
| CN205639172U (en) | A hydraulic pressure test system for hydraulic cylinder detects | |
| CN205298094U (en) | Automatic continuous single -shot booster | |
| CN203835828U (en) | Oil tank volume expansion improvement structure | |
| CN204773756U (en) | Lower roof pressure liquid medicine press system device | |
| CN207437338U (en) | A kind of intelligent hydraulic pump | |
| CN201291595Y (en) | Supercharging apparatus of hydraulic oil press | |
| CN206816588U (en) | Closed frame hydraulic press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20131219 |