CN109139617A - A kind of novel high-pressure electric oil pump - Google Patents
A kind of novel high-pressure electric oil pump Download PDFInfo
- Publication number
- CN109139617A CN109139617A CN201811223091.XA CN201811223091A CN109139617A CN 109139617 A CN109139617 A CN 109139617A CN 201811223091 A CN201811223091 A CN 201811223091A CN 109139617 A CN109139617 A CN 109139617A
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- China
- Prior art keywords
- oil
- fuel tank
- pump
- valve
- oil pump
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a kind of novel high-pressure electric oil pumps, including fuel tank, Oil pump electrical machinery and plunger pump, the top of oil-tank side is equipped with air filter, the fuel tank side is equipped with control cabinet, the tank bottoms two sides are mounted on Oil pump electrical machinery, described Oil pump electrical machinery one end is equipped with plunger pump by connector sleeve, the plunger pump is connected with delivery pipe, oil absorption filter is connected at the top of the delivery pipe, the tank bottoms are connected with connector row close to the plunger pump side, the connector row bottom side is connected with return filter, and oil return pipe is connected between the connector row and the return filter, described fuel tank one end is equipped with two groups of liquid temperature liquidometers.There are two outlets for the pump, and there is two-way oil circuit by manual reverse of direction to facilitate use in double-action ram, when the jack for spring return be can be by the another to closing of reversal valve.The pressure increased can be born, more oil mass is conveyed, it is easy to control.
Description
Technical field
The present invention relates to a kind of electric oil pumps, and in particular to a kind of novel high-pressure electric oil pump belongs to hydraulic oil pump technology
Field.
Background technique
Large-scale High-Pressure electric oil pump is mainly used for Shi political affairs Jian and sets Gong Cheng ﹑ railway engineering and Kuang Shan ﹑ Ye Jin ﹑ Zao Chuan ﹑ building etc.
It is used to not only municipal pipe-jacking project, and can be used for concrete-bar drawer and large-tonnage hydraulic press power and behaviour in all kinds of machinery
Vertical part.To the hydraulic control system of pipe-jacking project, concrete-bar drawer and large-tonnage hydraulic press, to pipe-jacking project, steel bar stretching
Machine and large-tonnage hydraulic press carry out power and manipulation and control.Its pressure supply system is stablized, easy to operate, can effectively control push pipe work
The motion action of each section on journey, concrete-bar drawer and large-tonnage hydraulic press.But existing electric oil pump in use cannot
Biggish oil mass is born, volume is larger, it has not been convenient to which installing and dismounting occupies biggish volume, inconvenience control when hydraulic system works
System, cannot bear biggish pressure.
Summary of the invention
The purpose of the present invention is to provide a kind of novel high-pressure electric oil pumps, can solve existing electric oil pump and are using
In cannot bear biggish oil mass, volume is larger, it has not been convenient to which installing and dismounting occupies biggish volume, when hydraulic system works not
The technical issues of facilitating control, biggish pressure cannot be born.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of novel high-pressure electric oil pump, including fuel tank, Oil pump electrical machinery and plunger pump, the top of oil-tank side are equipped with
Air filter, the fuel tank side are equipped with control cabinet, and the tank bottoms are in hollow setting, and the tank bottoms surrounding
It is provided with perforation, the tank bottoms two sides are mounted on Oil pump electrical machinery, and described Oil pump electrical machinery one end is installed by connector sleeve
There is plunger pump, the plunger pump is connected with delivery pipe, and oil absorption filter, the oil absorption filter peace are connected at the top of the delivery pipe
Mounted in the inner bottom of the fuel tank, the tank bottoms are connected with connector row, the connector row close to the plunger pump side
Bottom side is connected with return filter, and oil return pipe is connected between connector row and the return filter, and described time
Oil strainer is positioned on the fuel tank close to the control cabinet side, and the delivery pipe and oil return pipe are connect with control valve group, institute
It states control valve group and is mounted on the fuel tank top close to the control cabinet side, described fuel tank one end is equipped with two groups of liquid temperature liquid levels
Meter.
Preferably, the control cabinet is electrically connect with Oil pump electrical machinery.
Preferably, the connector row is internal is equipped with several main top oil cylinders, and main top oil cylinder is connected with high-pressure ball valve.
Preferably, the control valve group includes main valve plate, and vibration-proof pressure gauge, pilot operated compound relief valve are equipped on main valve plate
And electro-hydraulic reversing valve.
Preferably, the fuel tank internal is separately connected two plunger pumps by two groups of delivery pipes, and two plunger pump one end are logical
Delivery pipe connection electro-hydraulic reversing valve is crossed, and the junction of two plunger pumps and electro-hydraulic reversing valve is equipped with vibration-proof pressure gauge and guide
Formula overflow valve, and tubular type check valve is installed between plunger pump and control valve group, pilot operated compound relief valve is connected back to by oil return pipe
Oil strainer, electro-hydraulic reversing valve connect several main top oil cylinders, the company of main top oil cylinder and delivery pipe by delivery pipe with oil return pipe
The place of connecing is equipped with high-pressure ball valve, and the oil return pipe of described electro-hydraulic reversing valve one end is connect with return filter, connector row and oil return
Hydraulic control one-way valve is installed between filter.
A kind of application method of novel high-pressure electric oil pump, this method specific steps include,
Step 1: Oil pump electrical machinery is fixedly mounted in the bottom of the fuel tank, Oil pump electrical machinery one end passes through connector sleeve connecting column
Plug pump, the delivery pipe of fuel tank internal connects plunger pump with oil return pipe, and connects control valve group later by plunger pump, followed by even
Connector row, connector are arranged one end and are connect with push-bench, are worked by control cabinet control oil pump electric motor starting, and Oil pump electrical machinery drives column
Pump operation is filled in, the hydraulic oil of fuel tank internal enters connector row inside through delivery pipe, and then push-bench is driven to work normally；
Step 2: in work, the hydraulic oil inside the connector row flow back into oil by hydraulic control one-way valve by oil return pipe
Inside case, and after control valve group internal oil pressure is excessive, hydraulic oil is flowed back into inside oil return pipe by pilot operated compound relief valve, and then is returned
The inside of fuel tank is flowed to, the oil temperature and oil mass of fuel tank internal is checked in work by liquid temperature liquidometer, timely adds hydraulic oil.
Beneficial effects of the present invention: power is carried out to pipe-jacking project, concrete-bar drawer and large-tonnage hydraulic press and manipulation is controlled
System.Its pressure supply system is stablized, easy to operate, can effectively control each on pipe-jacking project, concrete-bar drawer and large-tonnage hydraulic press
Partial motion action.Using the impurity of close filter filtering fuel tank internal hydraulic oil, guarantee the degree of purity of hydraulic oil；Using
Ne-leakage, superior fuel tank of doing manual work is as the holding vessel of hydraulic oil and the main body of entire hydraulic power unit.The pump configuration is compact, work
Skill is good, easily realizes that biggish flow and the manufacture of higher operating pressure and maintenance are easy.There are two outlets for the pump, have two-way
Oil circuit facilitates use in double-action ram by manual reverse of direction, when the jack for spring return be can by reversal valve it is another to
Closing.The pressure increased can be born, more oil mass is conveyed, it is easy to control.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is overall structure of the present invention.
Fig. 2 is main view of the present invention.
Fig. 3 is side view of the present invention.
Fig. 4 is present hydraulic system figure.
1, fuel tank；2, Oil pump electrical machinery；3, air filter；4, liquid temperature liquidometer；5, return filter；6, oil suction is filtered
Device；7, control valve group；8, control cabinet；9, plunger pump；10, connector is arranged；11, oil return pipe；12, delivery pipe；13, pilot-operated type overflow
Valve；14, vibration-proof pressure gauge；15, electro-hydraulic reversing valve；16, hydraulic control one-way valve；17, high-pressure ball valve；18, main top oil cylinder；19, tubular type
Check valve；20, main valve plate.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiment obtained without creative efforts belongs to what the present invention protected
Range.
It please refers to shown in Fig. 1-4, a kind of novel high-pressure electric oil pump, including fuel tank 1, Oil pump electrical machinery 2 and plunger pump 9, oil
1 top side of case is equipped with air filter 3, and air filter 3, which crosses impurity in air filtering, prevents the impurity in air from entering oil
Inside case 1,1 side of fuel tank is equipped with control cabinet 8, and 1 bottom of fuel tank is in hollow setting, and 1 bottom surrounding of fuel tank is provided with and wears
Hole, 1 two sides of the bottom of fuel tank are mounted on Oil pump electrical machinery 2, and 2 one end of Oil pump electrical machinery is equipped with plunger pump 9, oil pump electricity by connector sleeve
Machine 2 is that plunger pump 9 provides power, and plunger pump 9 is connected with delivery pipe 12, connects oil absorption filter 6, oil suction at the top of delivery pipe 12
Filter 6 is mounted on the inner bottom of fuel tank 1, to protect oil pump to avoid sucking biggish mechanical admixture, is mounted on the suction of oil pump
At oil, 1 bottom of fuel tank is connected with connector row 10 close to 9 side of plunger pump, and connector arranges 10 bottom sides and is connected with return filter
5, and it is connected with oil return pipe 11 between connector row 10 and return filter 5, return filter 5 is positioned on fuel tank 1 close to control cabinet 8 one
Side, return filter 5 filter impurity of hydraulic oil during oil return, guarantee the degree of purity of 1 internal hydraulic pressure of fuel tank oil, delivery pipe
12 and oil return pipe 11 connect with control valve group 7, control valve group 7 is mounted on 1 top of fuel tank close to 8 side of control cabinet, fuel tank 1 one
End is equipped with two groups of liquid temperature liquidometers 4, and liquid temperature liquidometer 4 measures the height of 1 internal hydraulic pressure of fuel tank oil, convenient in observation fuel tank 1
The usage amount of portion's hydraulic oil.
As a kind of technical optimization scheme of the invention, control cabinet 8 is electrically connect with Oil pump electrical machinery 2, and control cabinet 8 can be
The start and stop of control oil pump motor 2 in work facilitate control of the staff to Oil pump electrical machinery 2, more intelligent, easy to operate fast
It is prompt.
As a kind of technical optimization scheme of the invention, several main top oil cylinders 18 are installed, and main inside connector row 10
Top oil cylinder 18 is connected with high-pressure ball valve 17, and main top oil cylinder 18 is connect with external push-bench at work, and push-bench can be driven steady
Fixed operation, work center tap row 10 convey hydraulic oil for several main top oil cylinders 18.
As a kind of technical optimization scheme of the invention, control valve group 7 includes main valve plate 20, is equipped on main valve plate 20
Vibration-proof pressure gauge 14, pilot operated compound relief valve 13 and electro-hydraulic reversing valve 15, vibration-proof pressure gauge 14 can detecte 7 inside liquid of control valve group
The pressure of pressure oil, pressure is excessive, and hydraulic oil is discharged from pilot operated compound relief valve 13, guarantees that internal pressure is in normal working range
It is internal.
As a kind of technical optimization scheme of the invention, two columns are separately connected by two groups of delivery pipes 12 inside fuel tank 1
Plug pump 9, two 9 one end of plunger pump connect electro-hydraulic reversing valve 15, and two plunger pumps 9 and electro-hydraulic reversing valve 15 by delivery pipe 12
Junction vibration-proof pressure gauge 14 and pilot operated compound relief valve 13 are installed, and tubular type is installed between plunger pump 9 and control valve group 7
Check valve 19, pilot operated compound relief valve 13 connect return filter 5 by oil return pipe 11, and electro-hydraulic reversing valve 15 passes through 12 He of delivery pipe
Oil return pipe 11 connects several main top oil cylinders 18, and main top oil cylinder 18 and the junction of delivery pipe 12 are equipped with high-pressure ball valve 17, electricity
The oil return pipe 11 of 15 one end of liquid reversal valve is connect with return filter 5, is equipped with hydraulic control between connector row 10 and return filter 5
Check valve 16.
A kind of application method of novel high-pressure electric oil pump, this method specific steps include,
Step 1: Oil pump electrical machinery 2 is fixedly mounted in the bottom of fuel tank 1,2 one end of Oil pump electrical machinery connects plunger by connector sleeve
9 are pumped, the delivery pipe 12 and oil return pipe 11 inside fuel tank 1 connect plunger pump 9, and connect control valve group 7 later by plunger pump 9,
Followed by jointing row 10, connector is arranged 10 one end and is connect with push-bench, starts work by 8 control oil pump motor 2 of control cabinet,
Oil pump electrical machinery 2 drives plunger pump 9 to run, and the hydraulic oil inside fuel tank 1 enters inside connector row 10 through delivery pipe 12, and then band
Dynamic push-bench works normally；
Step 2: in work, the hydraulic oil inside connector row 10 is flow back by oil return pipe 11 by hydraulic control one-way valve 16
Inside fuel tank 1, and after 7 internal oil pressure of control valve group is excessive, hydraulic oil is flowed back into oil return pipe 11 by pilot operated compound relief valve 13
Portion, and then the inside of fuel tank 1 is flowed back into, oil temperature and oil mass inside fuel tank 1 are checked by liquid temperature liquidometer 4 in work, in time
Addition hydraulic oil.
In the use of the present invention, Oil pump electrical machinery 2 is fixedly mounted in the bottom of fuel tank 1,2 one end of Oil pump electrical machinery passes through connector sleeve
Plunger pump 9 is connected, the delivery pipe 12 and oil return pipe 11 inside fuel tank 1 connect plunger pump 9, and connect control later by plunger pump 9
Valve group 7 processed, followed by jointing row 10, connector is arranged 10 one end and is connect with push-bench, passes through 8 control oil pump motor 2 of control cabinet
Start work, Oil pump electrical machinery 2 drives plunger pump 9 to run, and the hydraulic oil inside fuel tank 1 enters in connector row 10 through delivery pipe 12
Portion, and then push-bench is driven to work normally.In work, the hydraulic oil inside connector row 10 passes through fluid-control one-way by oil return pipe 11
After valve 16 is flow back into inside fuel tank 1, and 7 internal oil pressure of control valve group is excessive, hydraulic oil is flowed back by pilot operated compound relief valve 13
Inside oil return pipe 11, and then flow back into the inside of fuel tank 1.In work by liquid temperature liquidometer 4 check oil temperature fuel tank 1 inside with
Oil mass timely adds hydraulic oil.In 2 motion process of Oil pump electrical machinery, crossing impurity in air filtering by air filter 3 prevents sky
Impurity in gas enters inside fuel tank 1；Impurity of hydraulic oil during oil return is filtered by return filter 5, guarantees fuel tank 1
The degree of purity of internal hydraulic pressure oil.It protects oil pump to avoid sucking biggish mechanical admixture by oil absorption filter 6, passes through control valve group
The operation of 7 each movements of control.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (6)
1. a kind of novel high-pressure electric oil pump, it is characterised in that: described including fuel tank (1), Oil pump electrical machinery (2) and plunger pump (9)
Fuel tank (1) top side is equipped with air filter (3), and fuel tank (1) side is equipped with control cabinet (8), the fuel tank (1)
Bottom is in hollow setting, and the fuel tank (1) bottom surrounding is provided with perforation, and fuel tank (1) two sides of the bottom are mounted on
Oil pump electrical machinery (2), described Oil pump electrical machinery (2) one end are equipped with plunger pump (9) by connector sleeve, and the plunger pump (9) is connected with
Delivery pipe (12), delivery pipe (12) top connect oil absorption filter (6), and the oil absorption filter (6) is mounted on the oil
The inner bottom of case (1), fuel tank (1) bottom are connected with connector row (10), the connector close to the plunger pump (9) side
Row's (10) bottom side is connected with return filter (5), and is connected between connector row (10) and the return filter (5)
Have oil return pipe (11), the return filter (5) is positioned on the fuel tank (1) close to the control cabinet (8) side, the delivery pipe
(12) it is connect with control valve group (7) with oil return pipe (11), it is close that the control valve group (7) is mounted on the fuel tank (1) top
Control cabinet (8) side, described fuel tank (1) one end are equipped with two groups of liquid temperature liquidometers (4).
2. a kind of novel high-pressure electric oil pump according to claim 1, it is characterised in that: the control cabinet (8) and oil pump
Motor (2) electrically connects.
3. a kind of novel high-pressure electric oil pump according to claim 1, it is characterised in that: peace inside the connector row (10)
Equipped with several main top oil cylinders (18), and main top oil cylinder (18) is connected with high-pressure ball valve (17).
4. a kind of novel high-pressure electric oil pump according to claim 1, it is characterised in that: the control valve group (7) includes
Have main valve plate (20), vibration-proof pressure gauge (14), pilot operated compound relief valve (13) and electro-hydraulic reversing valve are installed on main valve plate (20)
(15)。
5. a kind of according to claim 1, novel high-pressure electric oil pump described in 3 or 4, it is characterised in that: the fuel tank (1) is internal
Two plunger pumps (9) are separately connected by two groups of delivery pipes (12), two plunger pump (9) one end pass through delivery pipe (12) connection electricity
Liquid reversal valve (15), and the junction of two plunger pumps (9) and electro-hydraulic reversing valve (15) is equipped with vibration-proof pressure gauge (14) and elder generation
Conduction overflow valve (13), and tubular type check valve (19), pilot operated compound relief valve are installed between plunger pump (9) and control valve group (7)
(13) by oil return pipe (11) connection return filter (5), electro-hydraulic reversing valve (15) passes through delivery pipe (12) and oil return pipe (11)
Several main top oil cylinders (18) are connected, main top oil cylinder (18) and the junction of delivery pipe (12) are equipped with high-pressure ball valve (17), institute
The oil return pipe (11) for stating electro-hydraulic reversing valve (15) one end is connect with return filter (5), and connector arranges (10) and return filter (5)
Between hydraulic control one-way valve (16) are installed.
6. a kind of application method of novel high-pressure electric oil pump, which is characterized in that this method specific steps include,
Step 1: Oil pump electrical machinery (2) are fixedly mounted in the bottom of the fuel tank (1), Oil pump electrical machinery (2) one end is connected by connector sleeve
It connects plunger pump (9), the internal delivery pipe (12) of fuel tank (1) and oil return pipe (11) connection plunger pump (9), and passes through plunger pump (9)
Later control valve group (7) are connected, arranges (10) followed by jointing, connector row (10) one end is connect with push-bench, passes through control
Cabinet (8) control oil pump motor (2) starts work, and Oil pump electrical machinery (2) drives plunger pump (9) operation, the internal hydraulic oil of fuel tank (1)
It is internal that connector row (10) is entered through delivery pipe (12), and then push-bench is driven to work normally；
Step 2: in work, the internal hydraulic oil of the connector row (10) passes through hydraulic control one-way valve (16) by oil return pipe (11)
It is internal to flow back into fuel tank (1), and after control valve group (7) internal oil pressure is excessive, hydraulic oil passes through pilot operated compound relief valve (13) reflux
It is internal to oil return pipe (11), and then the inside of fuel tank (1) is flowed back into, it is checked in fuel tank (1) in work by liquid temperature liquidometer (4)
The oil temperature and oil mass in portion, timely add hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811223091.XA CN109139617A (en) | 2018-10-19 | 2018-10-19 | A kind of novel high-pressure electric oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811223091.XA CN109139617A (en) | 2018-10-19 | 2018-10-19 | A kind of novel high-pressure electric oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139617A true CN109139617A (en) | 2019-01-04 |
Family
ID=64809067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811223091.XA Pending CN109139617A (en) | 2018-10-19 | 2018-10-19 | A kind of novel high-pressure electric oil pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN109139617A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202742A (en) * | 2021-03-23 | 2021-08-03 | 徐州新大隆化工泵业制造有限公司 | Novel plunger pump and manufacturing method thereof |
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| CN103382956A (en) * | 2012-05-04 | 2013-11-06 | 兴化市远洋机械有限公司 | Marine pump station device |
| CN203392367U (en) * | 2013-07-20 | 2014-01-15 | 长兴山润机械有限公司 | Hydraulic system for belt conveyor |
| CN205013413U (en) * | 2015-09-30 | 2016-02-03 | 扬州斯普森机械制造有限公司 | Hydraulic system of pipe pushing jack |
| CN108625873A (en) * | 2018-08-16 | 2018-10-09 | 安徽卓科智能装备有限公司 | A kind of slurry balance pipe-jacking tunneling machine |
-
2018
- 2018-10-19 CN CN201811223091.XA patent/CN109139617A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2460769Y (en) * | 2000-11-17 | 2001-11-21 | 上海市第二市政工程有限公司机械厂 | Pipe-jacking hydraulic power pump station |
| CN103381880A (en) * | 2012-05-04 | 2013-11-06 | 兴化市远洋机械有限公司 | Oil pump device of cablelifter |
| CN103382956A (en) * | 2012-05-04 | 2013-11-06 | 兴化市远洋机械有限公司 | Marine pump station device |
| CN202612084U (en) * | 2012-05-14 | 2012-12-19 | 淮南唐兴液压机械有限责任公司 | Double-machine and double-pump pump station device |
| CN203392367U (en) * | 2013-07-20 | 2014-01-15 | 长兴山润机械有限公司 | Hydraulic system for belt conveyor |
| CN205013413U (en) * | 2015-09-30 | 2016-02-03 | 扬州斯普森机械制造有限公司 | Hydraulic system of pipe pushing jack |
| CN108625873A (en) * | 2018-08-16 | 2018-10-09 | 安徽卓科智能装备有限公司 | A kind of slurry balance pipe-jacking tunneling machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202742A (en) * | 2021-03-23 | 2021-08-03 | 徐州新大隆化工泵业制造有限公司 | Novel plunger pump and manufacturing method thereof |
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Application publication date: 20190104 |
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| RJ01 | Rejection of invention patent application after publication |