CN206338261U - Ultrahigh-pressure hydraulic pressure charging system with fast discharging component - Google Patents
Ultrahigh-pressure hydraulic pressure charging system with fast discharging component Download PDFInfo
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- CN206338261U CN206338261U CN201621246134.2U CN201621246134U CN206338261U CN 206338261 U CN206338261 U CN 206338261U CN 201621246134 U CN201621246134 U CN 201621246134U CN 206338261 U CN206338261 U CN 206338261U
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- 238000007599 discharging Methods 0.000 title claims abstract description 13
- 239000000446 fuel Substances 0.000 claims abstract description 44
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 238000005086 pumping Methods 0.000 claims description 16
- 239000002828 fuel tank Substances 0.000 abstract description 9
- 238000001125 extrusion Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 58
- 239000010720 hydraulic oil Substances 0.000 description 9
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a kind of ultrahigh-pressure hydraulic pressure charging system with fast discharging component, including fluid pressure drive device, pressurized cylinder, hydraulic control device and unloading assembly；Pressurized cylinder is provided with first piston and hydraulic cavities, and hydraulic cavities are divided into the first driving chamber, the second driving chamber and booster cavity by the line of travel of first piston；Hydraulic control device includes fuel tank, solenoid directional control valve and hydraulic lock；Unloading assembly is provided with cylinder body, the 3rd driving chamber, the second fuel feed hole for connecting the first fuel feed hole, the 3rd fuel feed hole and the second oil outlet for connecting fuel tank for connecting booster cavity；3rd driving chamber is provided with second piston, the 4th check valve and the spring being sequentially connected；Second piston supports the second fuel feed hole, and spring supports the 3rd fuel feed hole；Sliding for second piston drives the 4th check valve extrusion spring so that the oil inlet end of the 4th check valve connects the 3rd fuel feed hole, oil outlet end and connects the second oil outlet.The utility model sets unloading assembly by the oil outlet of pressurized cylinder, has the advantages that quick pressure releasing.
Description
Technical field
The utility model is related to hydraulic booster technical field, more specifically, and the utility model is related to a kind of with quick
The ultrahigh-pressure hydraulic pressure charging system of unloading assembly.
Background technology
In injection mold field, the demand functionally such as cast gate or punching, extrusion molding glue is cut automatically to perform, it will usually
Installation kit is containing the ultrahigh-pressure hydraulic pressure charging system including slide core and high-voltage oil cylinder in plastic parts moulding processing male and female mould used,
When the plastic cement of melting is in the pressure maintaining period in die cavity and not yet rising again solidification is injected, it can be ensured that on injection-molded work appearance surfaces
Smooth degree, and save the process for removing cast gate or flash clout.
In the prior art, ultrahigh-pressure hydraulic pressure charging system is generally two-part oil pressure supercharging device, including with pumping chamber and
Collect the booster of pressure chamber, it utilizes the repairing means of first paragraph low pressure oil, to supplement in super-pressure oil pipe to drive mould internal strength
A large amount of oil masses needed for energy component, while promoting piston to carry out secondary increasing using the cracking pressure difference of second segment hydraulic control one-way valve
Pressure, it is poor by both cracking pressures, the means that back pressure opens two sections of valves are formed after first paragraph low pressure repairing, to drive supercharging
First paragraph low pressure oil is pushed away increasing and forms second segment pressurised oil by the piston of device, to meet application end function in driving diversity mould
The demand of required super-pressure oil pressure during component.But two-part supercharging module initial pressure is higher, and pressure release speed is slow, easily right
Piston and hydraulic means cause to damage.
Utility model content
For weak point present in above-mentioned technology, the utility model provides a kind of superelevation with fast discharging component
Hydraulic pressure boosting system is pressed, there is quick pressure releasing.
In order to realize that the utility model is by the following technical programs according to these purposes of the present utility model and further advantage
Realize：
The utility model provides a kind of ultrahigh-pressure hydraulic pressure charging system with fast discharging component, and it includes：
Fluid pressure drive device, it includes motor, the pumping electrically connected with the motor；
Pressurized cylinder, is matched in the hydraulic cavities slided, the hydraulic cavities in it provided with first piston and for the first piston
The first driving chamber, the second driving chamber and supercharging provided with the first oil outlet are divided into by the line of travel of the first piston
Chamber；Second driving chamber is provided with the first fuel feed hole；
Hydraulic control device, it includes fuel tank, the solenoid directional control valve being connected by oil pipe with the fuel tank and for controlling
The hydraulic lock of oil circuit open and-shut mode between the solenoid directional control valve and the pressurized cylinder；The hydraulic lock and the described first driving
Chamber is connected parallel by the first check valve of oil-feed with the second check valve of oil return respectively；The hydraulic lock and the described second driving
Chamber is connected by first fuel feed hole；The hydraulic lock is connected with the booster cavity by the 3rd check valve of repairing；And,
Unloading assembly, its provided with cylinder body, the 3rd driving chamber on the inside of cylinder body, be communicated to the of first fuel feed hole
Two fuel feed holes, the 3rd fuel feed hole for being communicated to the booster cavity and the second oil outlet for being communicated to the oil cylinder；
Wherein, the pumping controls holding for the pressurized cylinder under motor driving, by the hydraulic control device
Action is made；
Drive the 4th check valve that slides of the second piston extrudes the spring so that the 4th check valve
Oil inlet end connects the 3rd fuel feed hole, the oil outlet end of the 4th check valve connects second oil outlet.
Preferably, the 4th check valve is trapezoidal in the conical surface, the cylinder body conical surface inwall and the 4th check valve two
It is in that the splayed conical surface matched is sealed firmly that what side was supported, which supports section,.
Preferably, the hydraulic lock provided with first opening, connect it is described first opening second opening, the 3rd opening with
And the 4th opening of connection the 3rd opening；First opening and the described 3rd opening are communicated to described by oil pipe respectively
Oil cylinder；Second opening is respectively communicated with first check valve, second check valve and the 3rd check valve；Institute
State the 4th opening and be respectively communicated with first fuel feed hole, second fuel feed hole.
Preferably, the oil-out of the pumping is provided with the 5th check valve for preventing that fluid from flowing back, the 5th check valve
Oil outlet end be connected with the oil inlet of the solenoid directional control valve.
Preferably, the oil-out of the pumping provided with guarantee system integral pressure it is stable and will not superpressure overflow valve,
The oil outlet end of the overflow valve is connected to the oil cylinder.
The utility model at least includes following beneficial effect：
The ultrahigh-pressure hydraulic pressure charging system with fast discharging component that the utility model is provided, passes through going out in pressurized cylinder
Oilhole sets unloading assembly, has the advantages that quick pressure releasing.
Further advantage of the present utility model, target and feature embody part by following explanation, and part will also pass through
Research of the present utility model and practice are understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 obtains schematic diagram for the ultrahigh-pressure hydraulic pressure charging system described in the utility model with fast discharging component；
Fig. 2 is close-up schematic view of the unloading assembly in packing state in Fig. 1：
Fig. 3 is close-up schematic view of the unloading assembly in pressure release state in Fig. 1：
In figure：
10- fluid pressure drive devices；
11- motors；12- pumpings；The check valves of 13- the 5th；14- overflow valves；15- pressure gauges；
16- pressure meter switches；
20- pressurized cylinders；
21- first pistons；22- hydraulic cavities；The driving chambers of 221- first；The driving chambers of 222- second；
The fuel feed holes of 222A- first；223- booster cavities；The oil outlets of 223A- first；
30- hydraulic control devices；
31- fuel tanks；32- solenoid directional control valves；33- hydraulic locks；P3- first is open；P4- second is open；
P1- the 3rd is open；P2- the 4th is open；The check valves of 34- first；The check valves of 35- second；
The check valves of 36- the 3rd；
40- unloading assemblies；
41- cylinder bodies；The driving chambers of 42- the 3rd；421- second pistons；The check valves of 422- the 4th；423- springs；
The fuel feed holes of 43- second；The fuel feed holes of 44- the 3rd；The oil outlets of 45- second；
What the conical surface inwall of M- cylinder bodies 41 and the both sides of the 4th check valve 422 were supported supports section.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or many
The presence or addition of individual other elements or its combination.
As shown in Figure 1 to Figure 3, the utility model provides a kind of ultrahigh-pressure hydraulic supercharging system with fast discharging component
System, it includes：Fluid pressure drive device 10, pressurized cylinder 20, hydraulic control device 30 and unloading assembly 40.
The pumping 12 that fluid pressure drive device includes motor 11, electrically connected with motor 11；Pumping 12 under the driving of motor 11, it is logical
The execution for crossing the control pressurized cylinder 20 of hydraulic control device 30 acts to complete the supercharging or pressure release of ultrahigh-pressure hydraulic pressure charging system
Operational motion.
Pressed in the hydraulic cavities 22 slided in pressurized cylinder 20 provided with first piston 21 and for the matching of first piston 21, hydraulic cavities 22
The line of travel of first piston 21 is divided into the first driving chamber 221, the second driving chamber 222 and provided with the first oil outlet 223A
Booster cavity 223；Second driving chamber 222 is provided with the first fuel feed hole 222A.
Hydraulic control device 30 includes fuel tank 31, the solenoid directional control valve 32 being connected by oil pipe with fuel tank 31 and for controlling
The hydraulic lock 33 of oil circuit open and-shut mode between solenoid directional control valve 32 and pressurized cylinder 20；221 points of 33 and first driving chamber of hydraulic lock
Do not connected parallel with the second check valve 35 of oil return by the first check valve 34 of oil-feed；The driving chamber 222 of hydraulic lock 33 and second
Connected by the first fuel feed hole 222A；Hydraulic lock 33 is connected with booster cavity 223 by the 3rd check valve 36 of repairing.
Unloading assembly 40 is provided with cylinder body 41, the 3rd driving chamber 42 positioned at the inner side of cylinder body 41, is communicated to the first fuel feed hole
222A the second fuel feed hole 43, it is communicated to the 3rd fuel feed hole 44 of booster cavity 223 and is communicated to the second oil outlet of oil cylinder 31
45.Provided with second piston 421, the 4th check valve 422 and the spring 423 being sequentially connected in 3rd driving chamber 42；Second piston
421 are supported to the second fuel feed hole 43, and spring is supported to the 3rd fuel feed hole 44.
In above-mentioned embodiment, the pressurization of ultrahigh-pressure hydraulic pressure charging system is：Under the driving of motor 11, electromagnetism is changed
The first driving chamber 221 is communicated to by the first check valve 34 respectively to the selection of valve 32 hydraulic lock 33, connected by the 3rd check valve 36
Lead to booster cavity 223, then the hydraulic oil in oil cylinder 31 in the presence of pumping 12 through oil pipe and by the first check valve 34 and
3rd check valve 36, first hydraulic oil enter booster cavity 223 by the 3rd check valve 36, as oil pressure raises the first check valve 34
Then just it is opened, then hydraulic oil just enters the first driving chamber 221, realizes that the driving chamber 221 of booster cavity 223 and first is mended respectively
Oil, realizes the effect of preferential repairing in booster cavity 223.During repairing, the hydraulic oil into the first driving chamber 221 is promoted
First piston 21 is moved towards the first oil outlet 223A, and the pressure in booster cavity 223 gradually increases.Due to the second check valve 35 only
Single file for oil return is turned on, and first piston 21 is slided towards the matching of booster cavity 223 causes hydraulic oil in the second driving chamber 222 to be arranged
Go out, and the oil outlet of the 4th check valve 422 could only connect the second oil outlet 45 after the oil-feed of the second fuel feed hole 43, therefore, increase
During pressing the supercharging of chamber 223, the second check valve 35 and the 4th check valve 422 are in closed mode.
The pressure leak process of ultrahigh-pressure hydraulic pressure charging system is：Under the driving of motor 11, the selection hydraulic pressure of solenoid directional control valve 32
Lock 33 carries out repairing by the first fuel feed hole 222A to the second driving chamber, promotes the lateral movement to the left of first piston 21, at this moment first
The hydraulic oil of driving chamber 221 is discharged to fuel tank 31 through the second check valve 35 from oil pipe；With being input to the oil pressure of the second driving chamber 222
Pressure rise, is also increased by the oil pressure of the 3rd driving chamber 42 that enters of the second fuel feed hole 43, promote second piston 421 with
And connected 4th check valve 422 is slided with extrusion spring 423 so that the oil inlet end connection the 3rd of the 4th check valve 422
Fuel feed hole 44, the oil outlet end of the 4th check valve 422 connect the second oil outlet 45, i.e. in the hydraulic oil such as Fig. 3 in booster cavity 223
Pass through M through the first oil outlet 223A, the 3rd fuel feed hole 44 successively shown in arrow, and enter fuel tank through oil pipe by the second oil outlet 45
31.Therefore, the pressure discharge operations of booster cavity 223, while by the first fuel feed hole 222A, the second check valve 35 and unloading assembly 40
Work to complete, compared to the pressure discharge operations separately through the first fuel feed hole 222A, the second check valve 35, with the excellent of quick pressure releasing
Point, using for the pressurized cylinder 20 of protection ultrahigh-pressure hydraulic pressure charging system is safe, improves the service life of pressurized cylinder 20 and uses and imitates
Rate.
In above-mentioned embodiment, as shown in Figures 2 and 3, the 4th check valve 422 is trapezoidal in the conical surface, the conical surface inwall of cylinder body 41
Section M that supports supported with the both sides of the 4th check valve 422 is in the splayed that matches.During packing state, the both sides of the 4th check valve 422 with
Support a section M inwalls to support, realize sealing.When hydraulic oil through the second fuel feed hole 43 enters the 3rd driving chamber 42, second is promoted to live
Plug 421 and connected 4th check valve 422 be when sliding with extrusion spring 423, trapezoidal both sides of the 4th check valve 422 with
Trapezoidal supports form gap between section M inwalls, promotes the oil inlet end of the 4th check valve 422 to connect the 3rd fuel feed hole the 44, the 4th
The oil outlet end of check valve 422 connects the second oil outlet 45.
In above-mentioned embodiment, specifically, second opening of the hydraulic lock 33 provided with the first opening P3, the opening of connection first P1
P4, the 3rd opening P1 and the opening of connection the 3rd P1 the 4th opening P2；First opening P3 and the 3rd opening P1 pass through oil respectively
Pipe is communicated to oil cylinder 31；Second opening P4 is respectively communicated with to the first check valve 34, the second check valve 35 and the 3rd check valve 36；
4th opening P2 is respectively communicated with to the first fuel feed hole 222A, the second fuel feed hole 43.
In above-mentioned embodiment, the oil-out of pumping 12 is provided with the 5th check valve 13, the oil outlet end of the 5th check valve 13 with
Connected at the oil inlet of solenoid directional control valve 32.5th check valve 13 is used to prevent that hydraulic oil from flowing back.
In above-mentioned embodiment, the oil-out of pumping 12 is provided with overflow valve 14, and the oil outlet end of overflow valve 14 is connected to oil cylinder
31.Overflow valve 14 is used to ensureing that ultrahigh-pressure hydraulic pressure charging system integral pressure to be stable and will not superpressure.
In above-mentioned embodiment, solenoid directional control valve 32 is buffer-type solenoid directional control valve, more specifically, solenoid directional control valve 32 is
Y type three-position four-way electromagnetic directional valves, in middle position, the oil inlet of solenoid directional control valve 32 is closed state, solenoid directional control valve 32
Other three hydraulic fluid ports are the state for opening intercommunication.
In above-mentioned embodiment, the oil-out of pumping 12 is additionally provided with pressure gauge 15 and control for showing real-time pressure
The pressure meter switch 16 that pressure gauge 15 is opened and closed.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and embodiment
It is listed to use.It can be applied to various suitable fields of the present utility model completely.For those skilled in the art
Other modification is easily achieved.Therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (5)
1. a kind of ultrahigh-pressure hydraulic pressure charging system with fast discharging component, it is characterised in that it includes：
Fluid pressure drive device, it includes motor, the pumping electrically connected with the motor；
Pressurized cylinder, matches the hydraulic cavities slided, the hydraulic cavities are interior to press institute in it provided with first piston and for the first piston
The line of travel for stating first piston is divided into the first driving chamber, the second driving chamber and the booster cavity provided with the first oil outlet；
Second driving chamber is provided with the first fuel feed hole；
Hydraulic control device, it includes oil cylinder, the solenoid directional control valve being connected by oil pipe with the oil cylinder and described for controlling
The hydraulic lock of oil circuit open and-shut mode between solenoid directional control valve and the pressurized cylinder；The hydraulic lock and first driving chamber point
Do not connected parallel with the second check valve of oil return by the first check valve of oil-feed；The hydraulic lock is led to second driving chamber
Cross the first fuel feed hole connection；The hydraulic lock is connected with the booster cavity by the 3rd check valve of repairing；And,
Unloading assembly, its provided with cylinder body, the 3rd driving chamber on the inside of cylinder body, be communicated to the second of first fuel feed hole and enter
Oilhole, the 3rd fuel feed hole for being communicated to the booster cavity and the second oil outlet for being communicated to the oil cylinder；
Wherein, the pumping controls the execution of the pressurized cylinder to move under motor driving, by the hydraulic control device
Make；
Provided with second piston, the 4th check valve and the spring being sequentially connected in 3rd driving chamber；The second piston is supported
Second fuel feed hole is pushed up, the spring supports the 3rd fuel feed hole；
Drive the 4th check valve that slides of the second piston extrudes the spring so that the oil-feed of the 4th check valve
End connection the 3rd fuel feed hole, the oil outlet end of the 4th check valve connect second oil outlet.
2. there is the ultrahigh-pressure hydraulic pressure charging system of fast discharging component as claimed in claim 1, it is characterised in that
The 4th check valve taper, the section of supporting that the cylinder body conical surface inwall is supported with the 4th check valve conical surface is in match
The splayed conical surface seal firmly.
3. there is the ultrahigh-pressure hydraulic pressure charging system of fast discharging component as claimed in claim 1, it is characterised in that
The hydraulic lock is provided with the first opening, the second opening for connecting first opening, the 3rd opening and connects described the
4th opening of three openings；
First opening and the described 3rd opening are communicated to the oil cylinder by oil pipe respectively；
Second opening is respectively communicated with first check valve, second check valve and the 3rd check valve；
4th opening is respectively communicated with first fuel feed hole, second fuel feed hole.
4. there is the ultrahigh-pressure hydraulic pressure charging system of fast discharging component as claimed in claim 1, it is characterised in that
The oil-out of the pumping be provided with prevent fluid flow back the 5th check valve, the oil outlet end of the 5th check valve with it is described
The oil inlet connection of solenoid directional control valve.
5. there is the ultrahigh-pressure hydraulic pressure charging system of fast discharging component as claimed in claim 1, it is characterised in that
The oil-out of the pumping provided with guarantee system integral pressure it is stable and will not superpressure overflow valve, the overflow valve goes out
Oily end is connected to the oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621246134.2U CN206338261U (en) | 2016-11-17 | 2016-11-17 | Ultrahigh-pressure hydraulic pressure charging system with fast discharging component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621246134.2U CN206338261U (en) | 2016-11-17 | 2016-11-17 | Ultrahigh-pressure hydraulic pressure charging system with fast discharging component |
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| Publication Number | Publication Date |
|---|---|
| CN206338261U true CN206338261U (en) | 2017-07-18 |
Family
ID=59307094
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621246134.2U Active CN206338261U (en) | 2016-11-17 | 2016-11-17 | Ultrahigh-pressure hydraulic pressure charging system with fast discharging component |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425665A (en) * | 2018-05-18 | 2018-08-21 | 东莞海特帕沃液压科技有限公司 | A kind of fracturing pump of hydraulic-driven |
| CN108488110A (en) * | 2018-05-18 | 2018-09-04 | 东莞海特帕沃液压科技有限公司 | A kind of single-action reciprocating hydraulic intensifier |
| CN108571479A (en) * | 2018-05-18 | 2018-09-25 | 东莞海特帕沃液压科技有限公司 | A kind of single-ram booster |
| CN108644084A (en) * | 2018-05-18 | 2018-10-12 | 东莞海特帕沃液压科技有限公司 | A kind of slush pump of hydraulic-driven |
| CN108679006A (en) * | 2018-05-18 | 2018-10-19 | 东莞海特帕沃液压科技有限公司 | A kind of single-action reciprocating hydraulic intensifier |
| CN108730146A (en) * | 2018-05-18 | 2018-11-02 | 东莞海特帕沃液压科技有限公司 | A kind of fracturing pump of hydraulic-driven |
| CN108730151A (en) * | 2018-05-18 | 2018-11-02 | 东莞海特帕沃液压科技有限公司 | A kind of high-pressure injection pump of hydraulic-driven |
| CN108730148A (en) * | 2018-05-18 | 2018-11-02 | 东莞海特帕沃液压科技有限公司 | A kind of double plunger fracturing pump of hydraulic-driven |
| CN110307194A (en) * | 2019-07-03 | 2019-10-08 | 江苏恒立液压科技有限公司 | Hydraulic release can system |
| CN111637109A (en) * | 2020-06-16 | 2020-09-08 | 凯盛重工有限公司 | Multi-oil-cylinder related accurate positioning system |
| CN112483511A (en) * | 2020-12-08 | 2021-03-12 | 四川凌峰航空液压机械有限公司 | Variable pressure ratio hydraulic pressure boost test system |
| CN112727857A (en) * | 2020-12-29 | 2021-04-30 | 萨驰智能装备股份有限公司 | Hydraulic pressurization system and tire vulcanizer |
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2016
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730148B (en) * | 2018-05-18 | 2019-07-26 | 胜利油田东强机电设备制造有限公司 | A kind of double plunger fracturing pump of hydraulic-driven |
| CN108730151A (en) * | 2018-05-18 | 2018-11-02 | 东莞海特帕沃液压科技有限公司 | A kind of high-pressure injection pump of hydraulic-driven |
| CN108571479A (en) * | 2018-05-18 | 2018-09-25 | 东莞海特帕沃液压科技有限公司 | A kind of single-ram booster |
| CN108644084A (en) * | 2018-05-18 | 2018-10-12 | 东莞海特帕沃液压科技有限公司 | A kind of slush pump of hydraulic-driven |
| CN108425665A (en) * | 2018-05-18 | 2018-08-21 | 东莞海特帕沃液压科技有限公司 | A kind of fracturing pump of hydraulic-driven |
| CN108730146A (en) * | 2018-05-18 | 2018-11-02 | 东莞海特帕沃液压科技有限公司 | A kind of fracturing pump of hydraulic-driven |
| CN108488110A (en) * | 2018-05-18 | 2018-09-04 | 东莞海特帕沃液压科技有限公司 | A kind of single-action reciprocating hydraulic intensifier |
| CN108730148A (en) * | 2018-05-18 | 2018-11-02 | 东莞海特帕沃液压科技有限公司 | A kind of double plunger fracturing pump of hydraulic-driven |
| CN108679006A (en) * | 2018-05-18 | 2018-10-19 | 东莞海特帕沃液压科技有限公司 | A kind of single-action reciprocating hydraulic intensifier |
| CN108730151B (en) * | 2018-05-18 | 2020-06-19 | 诺希德实业（深圳）有限公司 | Hydraulically-driven high-pressure grouting pump |
| CN108644084B (en) * | 2018-05-18 | 2019-11-15 | 阿奥艾斯海洋工程(上海)有限公司 | A kind of slush pump of hydraulic-driven |
| CN108571479B (en) * | 2018-05-18 | 2020-02-18 | 上海大众液压系统有限公司 | Single-plunger supercharger |
| CN110307194A (en) * | 2019-07-03 | 2019-10-08 | 江苏恒立液压科技有限公司 | Hydraulic release can system |
| CN111637109A (en) * | 2020-06-16 | 2020-09-08 | 凯盛重工有限公司 | Multi-oil-cylinder related accurate positioning system |
| CN112483511A (en) * | 2020-12-08 | 2021-03-12 | 四川凌峰航空液压机械有限公司 | Variable pressure ratio hydraulic pressure boost test system |
| CN112727857A (en) * | 2020-12-29 | 2021-04-30 | 萨驰智能装备股份有限公司 | Hydraulic pressurization system and tire vulcanizer |
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Effective date of registration: 20180124 Address after: 215000 Songshan Road, Suzhou hi tech Zone, Suzhou City, Jiangsu Province, No. 155 Patentee after: Outeken automation technology (Suzhou) Co., Ltd. Address before: No. 149, East Bank village, three Town, Pingjiang County, Yueyang, Hunan Province Patentee before: Yan Wanwen |
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