CN109139576A - A kind of integrated form is certainly cooling to digitize electric displacement of reservoir oil source - Google Patents
A kind of integrated form is certainly cooling to digitize electric displacement of reservoir oil source Download PDFInfo
- Publication number
- CN109139576A CN109139576A CN201811042715.8A CN201811042715A CN109139576A CN 109139576 A CN109139576 A CN 109139576A CN 201811042715 A CN201811042715 A CN 201811042715A CN 109139576 A CN109139576 A CN 109139576A
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- Prior art keywords
- valve
- oil
- fuel tank
- gear pump
- cooling
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
-
- 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
- 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
- F15B21/042—Controlling the temperature of the fluid
-
- 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
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- 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)
- Fuel-Injection Apparatus (AREA)
Abstract
本发明一种集成式自冷却数字化电驱油源涉及一种用于特种车辆的车载油源。其目的是为了提供一种集成式自冷却数字化电驱油源，实现了电能驱动、数字化控制，同时采用集成式布置，能够满足新一代电驱特种车辆的使用要求。本发明的电驱油源包括油箱、电机和三联齿轮泵，三联齿轮泵连接油箱，三联齿轮泵由电机驱动，电机具有伺服控制器，用于精确调节流量，三联齿轮泵第一联和第二联的出油口连接有换向阀组和比例溢流阀，第三联的出油口连接有调速阀和风冷器；所述电机与三联齿轮泵连接后，安装在油箱的上平面，三联齿轮泵嵌入在油箱内部，所述换向阀组和比例溢流阀制成阀块并固定在油箱上，所述调速阀和风冷器集中布置在油箱的箱体上。
An integrated self-cooling digital electric drive oil source of the present invention relates to a vehicle-mounted oil source for special vehicles. The purpose is to provide an integrated self-cooling digital electric drive oil source, which realizes electric drive and digital control, and adopts an integrated layout, which can meet the use requirements of a new generation of electric drive special vehicles. The electric drive oil source of the present invention includes an oil tank, a motor and a triple gear pump, the triple gear pump is connected to the oil tank, the triple gear pump is driven by the motor, and the motor has a servo controller for precise flow adjustment. The oil outlet of the third unit is connected with a reversing valve group and a proportional relief valve, and the oil outlet of the third unit is connected with a speed regulating valve and an air cooler; after the motor is connected with the triple gear pump, it is installed on the upper plane of the oil tank , the triple gear pump is embedded in the oil tank, the reversing valve group and the proportional relief valve are made into valve blocks and fixed on the oil tank, and the speed regulating valve and the air cooler are centrally arranged on the tank body of the oil tank.
Description
Technical field
The present invention relates to a kind of vehicle power supplies, more particularly to a kind of electric displacement of reservoir oil source for special vehicle.
Background technique
Certain special vehicles drive to pure electricity from conventional engines and drive development, are no longer driven using traditional internal combustion engine,
Using the electric energy on chassis as power source.And there is still a need for by hydraulic for exhibition vehicle, leveling and the movement such as perpendicular that rises of load of special vehicle
System is completed.Simultaneously with the development of technology, the HYDRAULIC CONTROL SYSTEM in special vehicle is also from traditional Analog control skill
Art develops to digital Control Technology, arranges and develops from distributed arrangement to integrated form, and requirements of installation space is also more and more compacter.
Existing special vehicle, can not also accomplish highly integrated in hydraulic control system and the arrangement of oil sources, lead to vehicle entirety cloth
Office is unreasonable, wastes a large amount of space.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of integrated forms to digitize electric displacement of reservoir oil source from cooling, realizes electric energy
Driving, Digital Control, while being arranged using integrated form, it can satisfy the requirement that electricity of new generation drives special vehicle.
A kind of integrated form of the present invention digitizes electric displacement of reservoir oil source, including fuel tank and motor from cooling, further includes combination triple gear pump,
Combination triple gear pump connection fuel tank simultaneously enters the oil pump in fuel tank in fluid pressure line, and combination triple gear pump is driven by motor, the motor
With servo controller, the accurate adjusting of flow, combination triple gear pump first are reached for being adjusted the speed to combination triple gear pump
Oil outlet with second is connected with the control valve group being made of commutation valve group and proportional pressure control valve and output oil port, the output
Hydraulic fluid port is used to connect external working line；The oil outlet sequential connection of combination triple gear pump third connection has speed governing valve, air cooler, watches
Take controller cooling line and motor cooling line；After the motor is connect with combination triple gear pump, it is mounted on the upper plane of fuel tank,
Combination triple gear pump is embedded in fuel tank internal, and the commutation valve group and proportional pressure control valve are made valve block and are fixed on fuel tank, described
Speed governing valve and air cooler centralized arrangement are on the cabinet of fuel tank.
A kind of integrated form of the present invention digitizes electric displacement of reservoir oil source from cooling, wherein the oil outlet of the combination triple gear pump first
The first high-pressure filter and the first check valve, first high-pressure filter and the first list are sequentially set between control valve group
It is located in valve block to valve, and is fixed on fuel tank；Sequence between the oil outlet and control valve group of the combination triple gear pump second
It is provided with the second high-pressure filter, second one-way valve, second high-pressure filter, second one-way valve are located in valve block, and solid
It is scheduled on fuel tank.
A kind of integrated form of the present invention digitizes electric displacement of reservoir oil source from cooling, wherein the reversal valve group include electro-hydraulic reversing valve and
Solenoid directional control valve, wherein the oil outlet of combination triple gear pump first and second is separately connected the oil inlet of two reversal valves, and two
Two actuator ports of a reversal valve are connected respectively, and the oil outlet of two valves connects fuel tank.
A kind of integrated form of the present invention digitizes electric displacement of reservoir oil source from cooling, wherein first output oil port and the second output oil
It is provided with pressure sensor and damper at mouthful, the pressure sensor and damper are fixed on fuel tank in valve block
On.
A kind of integrated form of the present invention digitizes electric displacement of reservoir oil source from cooling, wherein described the first of combination triple gear pump and the
The first overflow valve is provided in the oil circuit that bigeminy is connected, first overflow valve is located in valve block, and is fixed on fuel tank.
A kind of integrated form of the present invention digitizes electric displacement of reservoir oil source from cooling, wherein first overflow valve selects pilot-operated type overflow
Valve.
A kind of integrated form of the present invention digitizes electric displacement of reservoir oil source from cooling, wherein the pipe where combination triple gear pump third connection
The second overflow valve, pressure sensor and damper, second overflow valve, pressure sensor and damper are also connected in road
In valve block, and it is fixed on fuel tank.
A kind of integrated form of the present invention digitizes electric displacement of reservoir oil source from cooling, wherein being provided with oil return at the oil return opening of the fuel tank
Oil filter, fuel tank are further equipped with air cleaner, liquidometer, temperature indicator.
A kind of integrated form of the present invention digitizes electric displacement of reservoir oil source from cooling, wherein the return oil filter, air cleaner, liquid
Position meter, temperature indicator and the speed governing valve and the common centralized arrangement of air cooler are on the cabinet of fuel tank.
A kind of integrated form of the present invention digitizes electric displacement of reservoir oil source from cooling, wherein the motor selects Permanent magnet DC driving electricity
Machine.
A kind of integrated form of the present invention is one kind of the invention from the cooling electric displacement of reservoir oil source difference from prior art that digitizes
Integrated form is adjusted as power source, flow by the control of driving motor revolving speed from the electric displacement of reservoir oil source of cooling digitlization using electric energy, real
The a set of cooling heat radiator for having showed Digital Control, while itself providing, can either to driving motor and servo controller into
Row heat dissipation, hydraulic oil can also be carried out it is cooling save traditional flow control valve, motor, pump, valve block, valve member, air cooler with
Hydraulic oil container etc. is highly integrated, reduces the volume and weight of connecting line, can reduce 1/ than conventional hydraulic oil sources volume, weight
3~1/4.
A kind of integrated form of the invention is described further from the cooling electric displacement of reservoir oil source that digitizes with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is a kind of working principle diagram of the integrated form of the present invention from cooling digitlization electric displacement of reservoir oil source.
Specific embodiment
As shown in Figure 1, a kind of integrated form of the present invention from the cooling electric displacement of reservoir oil source that digitizes include fuel tank 1 and combination triple gear pump 3,
Combination triple gear pump 3 connects fuel tank 1 and enters the oil pump in fuel tank 1 in fluid pressure line, and combination triple gear pump 3 is driven by motor 2, motor
2 have servo controller, and motor 2 can select permanent magnetic direct-current driving motor.The SERVO CONTROL of motor 2 can be to combination triple gear pump
3 are adjusted the speed to reach the accurate adjusting of flow, realize the Digital Control of oil sources flow.There are three liquid for the tool of combination triple gear pump 3
Pressure oil outlet, wherein first and second is high-pressure oil feed source, being connected is high-pressure oil passage, first oil outlet sequence
It is connected with the first high-pressure filter 4, the first check valve 6 and control valve group, control valve group is by commutation valve group and proportional pressure control valve 19
And with composition.The oil outlet of first high-pressure filter 4 is provided with the first output oil port, outside the connection of the first output oil port
Working line is provided with pressure sensor 7 and damper 8 at the first output oil port, for detecting the fuel-displaced of the first output oil port
Pressure.The oil outlet sequential connection of combination triple gear pump 3 second has the second high-pressure filter, second one-way valve and control valve group.
The oil outlet of second high-pressure filter is provided with the second output oil port, the working line outside the connection of the second output oil port,
Pressure sensor 7 and damper 8 are provided at second output oil port, for detecting the oil pressure out of the second output oil port.Commutation
Valve group includes electro-hydraulic reversing valve 12 and solenoid directional control valve 13, and wherein high-pressure oil passage is separately connected the oil inlet of two reversal valves, and two
Two actuator ports of a reversal valve are connected respectively, and the oil outlet of two valves connects fuel tank 1.Commutation valve group is for controlling oil sources
Output flow direction.Proportional pressure control valve 19 can control oil supply pressure, realize the Digital Control of oil sources output pressure.This
It is provided with the first overflow valve 5 (20) in the first of external combination triple gear pump 3 and second oil circuit connected, increases oil circuit
Safety, the first overflow valve 5 (20) can choose pilot operated compound relief valve.The third connection of combination triple gear pump 3 is low-pressure low flow
Pump, the circulating cooling as cooling oil, which pumps, to be used.The oil outlet sequential connection of 3 third of combination triple gear pump connection has speed governing valve 18, wind
Cooler 11, servo controller cooling line and motor cooling line.It is also connected in pipeline where 3 third of combination triple gear pump connection
Second overflow valve 10, pressure sensor 7 and damper 8.Return oil filter 14 is provided at the oil return opening of fuel tank 1, fuel tank 1 is also matched
Have air cleaner 15, liquidometer 16, temperature indicator 17.
Integrated form of the present invention digitizes electric displacement of reservoir oil source in actual work from cooling, and DC power supply is for 2 band of electric drive motor
Dynamic combination triple gear pump 3, for first and the second of combination triple gear pump 3 from 1 oil suction of fuel tank, hydraulic oil passes through the first high filters pressing respectively
Oily device 4, the first check valve 6, control valve group and the external fuel feeding of the second high-pressure filter, second one-way valve, control valve group；Direct current
Source drives the third connection of combination triple gear pump 3 from 1 oil suction of fuel tank for electric drive motor 2, and hydraulic oil passes through speed governing valve 18, air cooler
11, servo controller cooling line, motor cooling line, are finally returned directly to fuel tank 1.Where 3 third of combination triple gear pump connection
Oil sources cooling circuit in, DC power supply drives fan for the motor of electric drive air cooler 11, to hydraulic by air cooler 11
Oil is cooled down；By adjusting speed governing valve 18, the flow in oil sources cooling circuit is adjusted within the scope of a certain steady state value, is played
The flow in cooling line is controlled in motor 2 and controller permissible value；Second overflow valve 10 is used to limit the pressure of cooling circuit
Power guarantees the pressure in cooling line in motor 2 and controller permissible value.Air cooler 11 is placed on motor servo servo control
Before device cooling line processed, motor cooling line, play and hydraulic oil be fully cooled, it is cooling after oil liquid enter back into cooling line pair
Motor and controller carry out cold dynamic.
It is of the invention after connecting motor 2 with combination triple gear pump 3, to be mounted on the upper plane of fuel tank 1 in actual arrangement,
Combination triple gear pump 3 is embedded in inside fuel tank 1, and the inlet line of combination triple gear pump 3 is arranged in inside fuel tank 1；High-pressure filter,
One check valve 6, second one-way valve, commutation valve group, pressure sensor 7 and the first overflow valve 5 (20), the second overflow valve 10 concentrate cloth
It is set to valve block and is fixed on fuel tank 1, reach the Centralized layout of all kinds of valve members etc.；Return oil filter 14, air cleaner 15,
The centralized arrangements such as liquidometer 16, temperature indicator 17, speed governing valve 18, air cooler 11 realize all element collection on 1 cabinet of fuel tank
In be arranged on fuel tank 1.It realizes by above-mentioned arrangement integrated form of the present invention from cooling digitlization electric displacement of reservoir oil source and is made using electric energy
It adjusts for power source, flow and is controlled by driving motor revolving speed, Digital Control, while a set of cooling itself provided are provided
Radiator can either radiate to driving motor and servo controller, and cooling can be also carried out to hydraulic oil and saves biography
System flow control valve, motor, pump, valve block, valve member, air cooler and hydraulic oil container 1 etc. are highly integrated, reduce the body of connecting line
Long-pending and weight, can reduce 1/3~1/4 than conventional hydraulic oil sources volume, weight.
Integrated form described in this patent completes prototype test from the cooling electric displacement of reservoir oil source that digitizes, and it is entirely electric that Mr. Yu is applied successfully
It drives heavy special vehicle large-tonnage to load in the hydraulic system of quick rotating lifting, and entrucking has carried out a perpendicular test, complete machine
Can be good, it realizes quickly to rise and erect.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (10)
1. a kind of integrated form digitizes electric displacement of reservoir oil source, including fuel tank and motor from cooling, it is characterised in that: further include triple gear
Pump, combination triple gear pump connection fuel tank simultaneously enter the oil pump in fuel tank in fluid pressure line, and combination triple gear pump is driven by motor, the electricity
Machine has servo controller, and the accurate adjusting of flow is reached for being adjusted the speed to combination triple gear pump,
The oil outlet of combination triple gear pump first and second is connected with the control valve being made of commutation valve group and proportional pressure control valve
Group and output oil port, the output oil port are used to connect external working line；
The oil outlet sequential connection of combination triple gear pump third connection has speed governing valve, air cooler, servo controller cooling line and motor
Cooling line；
After the motor is connect with combination triple gear pump, it is mounted on the upper plane of fuel tank, combination triple gear pump is embedded in fuel tank internal, institute
It states commutation valve group and proportional pressure control valve is made valve block and is fixed on fuel tank, the speed governing valve and air cooler centralized arrangement are in fuel tank
Cabinet on.
2. a kind of integrated form according to claim 1 digitizes electric displacement of reservoir oil source from cooling, it is characterised in that: three tooth
It is sequentially set with the first high-pressure filter and the first check valve between the oil outlet and control valve group of wheel pump first, described first
High-pressure filter and the first check valve are located in valve block, and are fixed on fuel tank；The oil outlet of the combination triple gear pump second
The second high-pressure filter, second one-way valve are sequentially set between control valve group, second high-pressure filter, second are unidirectionally
Valve is located in valve block, and is fixed on fuel tank.
3. a kind of integrated form according to claim 1 digitizes electric displacement of reservoir oil source from cooling, it is characterised in that: the reversal valve
Group includes electro-hydraulic reversing valve and solenoid directional control valve, and wherein the oil outlet of combination triple gear pump first and second is separately connected two
Two actuator ports of the oil inlet of reversal valve, two reversal valves are connected respectively, and the oil outlet of two valves connects fuel tank.
4. a kind of integrated form according to claim 1 digitizes electric displacement of reservoir oil source from cooling, it is characterised in that: described first is defeated
Pressure sensor and damper are provided at oil outlet and the second output oil port, the pressure sensor and damper are in valve
In block, and it is fixed on fuel tank.
5. a kind of integrated form according to claim 1 digitizes electric displacement of reservoir oil source from cooling, it is characterised in that: described three
The first overflow valve is provided in the first of gear pump and second oil circuit connected, first overflow valve is located at valve block
In, and be fixed on fuel tank.
6. a kind of integrated form according to claim 5 digitizes electric displacement of reservoir oil source from cooling, it is characterised in that: described first overflows
It flows valve and selects pilot operated compound relief valve.
7. a kind of integrated form according to claim 1 digitizes electric displacement of reservoir oil source from cooling, it is characterised in that: three tooth
The second overflow valve, pressure sensor and damper, second overflow valve, pressure are also connected in pipeline where wheel pump third connection
Force snesor and damper are fixed on fuel tank in valve block.
8. a kind of integrated form according to claim 1 digitizes electric displacement of reservoir oil source from cooling, it is characterised in that: the fuel tank
Return oil filter is provided at oil return opening, fuel tank is further equipped with air cleaner, liquidometer, temperature indicator.
9. a kind of integrated form according to claim 8 digitizes electric displacement of reservoir oil source from cooling, it is characterised in that: the oil return filter
The cabinet of oily device, air cleaner, liquidometer, temperature indicator and the speed governing valve and the common centralized arrangement of air cooler in fuel tank
On.
10. a kind of integrated form according to claim 1 digitizes electric displacement of reservoir oil source from cooling, it is characterised in that: the motor
Select permanent magnetic direct-current driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811042715.8A CN109139576A (en) | 2018-09-07 | 2018-09-07 | A kind of integrated form is certainly cooling to digitize electric displacement of reservoir oil source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811042715.8A CN109139576A (en) | 2018-09-07 | 2018-09-07 | A kind of integrated form is certainly cooling to digitize electric displacement of reservoir oil source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139576A true CN109139576A (en) | 2019-01-04 |
Family
ID=64827630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811042715.8A Pending CN109139576A (en) | 2018-09-07 | 2018-09-07 | A kind of integrated form is certainly cooling to digitize electric displacement of reservoir oil source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109139576A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911484A (en) * | 2020-08-14 | 2020-11-10 | 宁波保税区海天智胜金属成型设备有限公司 | Hydraulic cooling servo control system and method thereof |
| CN113669961A (en) * | 2020-05-15 | 2021-11-19 | 罗伯特·博世有限公司 | Cooler for hydraulic oil |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1018968A (en) * | 1996-06-28 | 1998-01-20 | Hitachi Constr Mach Co Ltd | Hydraulic drive |
| CN2511816Y (en) * | 2001-12-28 | 2002-09-18 | 中国石油集团地球物理勘探局 | Hydraulic system for screw drill in desert |
| CN201739265U (en) * | 2010-05-06 | 2011-02-09 | 沈阳北方交通重工有限公司 | Single triple fixed displacement pump oil supply device for development machine |
| CN202047982U (en) * | 2011-04-28 | 2011-11-23 | 吉林大学 | Multi-gear pump with step variable system |
| CN102588391A (en) * | 2012-03-12 | 2012-07-18 | 启东市南方润滑液压设备有限公司 | Independent cooling and filtering system for hydraulic station |
| CN203348184U (en) * | 2013-07-03 | 2013-12-18 | 上海汇益控制系统股份有限公司 | Hydraulic control device for offshore wind power piling |
| CN204284044U (en) * | 2014-11-24 | 2015-04-22 | 湖北航天技术研究院特种车辆技术中心 | A kind of hydraulic driving system |
| CN205383124U (en) * | 2015-12-31 | 2016-07-13 | 天津市欧曼液压装备系统工程有限公司 | Torsion bending experiment machine hydraulic system |
| CN205806051U (en) * | 2016-07-23 | 2016-12-14 | 锦州华夏易通物流有限公司 | Hydraulic pressure coal grab work jibs driving means |
-
2018
- 2018-09-07 CN CN201811042715.8A patent/CN109139576A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1018968A (en) * | 1996-06-28 | 1998-01-20 | Hitachi Constr Mach Co Ltd | Hydraulic drive |
| CN2511816Y (en) * | 2001-12-28 | 2002-09-18 | 中国石油集团地球物理勘探局 | Hydraulic system for screw drill in desert |
| CN201739265U (en) * | 2010-05-06 | 2011-02-09 | 沈阳北方交通重工有限公司 | Single triple fixed displacement pump oil supply device for development machine |
| CN202047982U (en) * | 2011-04-28 | 2011-11-23 | 吉林大学 | Multi-gear pump with step variable system |
| CN102588391A (en) * | 2012-03-12 | 2012-07-18 | 启东市南方润滑液压设备有限公司 | Independent cooling and filtering system for hydraulic station |
| CN203348184U (en) * | 2013-07-03 | 2013-12-18 | 上海汇益控制系统股份有限公司 | Hydraulic control device for offshore wind power piling |
| CN204284044U (en) * | 2014-11-24 | 2015-04-22 | 湖北航天技术研究院特种车辆技术中心 | A kind of hydraulic driving system |
| CN205383124U (en) * | 2015-12-31 | 2016-07-13 | 天津市欧曼液压装备系统工程有限公司 | Torsion bending experiment machine hydraulic system |
| CN205806051U (en) * | 2016-07-23 | 2016-12-14 | 锦州华夏易通物流有限公司 | Hydraulic pressure coal grab work jibs driving means |
Non-Patent Citations (1)
| Title |
|---|
| 高殿荣等: "《液压工程师技术手册（第二版）》", 28 February 2016, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669961A (en) * | 2020-05-15 | 2021-11-19 | 罗伯特·博世有限公司 | Cooler for hydraulic oil |
| CN111911484A (en) * | 2020-08-14 | 2020-11-10 | 宁波保税区海天智胜金属成型设备有限公司 | Hydraulic cooling servo control system and method thereof |
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Application publication date: 20190104 |