CN111255775A - Hydraulic control device of integrated hydraulic station - Google Patents
Hydraulic control device of integrated hydraulic station Download PDFInfo
- Publication number
- CN111255775A CN111255775A CN202010228596.6A CN202010228596A CN111255775A CN 111255775 A CN111255775 A CN 111255775A CN 202010228596 A CN202010228596 A CN 202010228596A CN 111255775 A CN111255775 A CN 111255775A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- oil
- valve
- hydraulic pump
- control device
- 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.)
- Pending
Links
Images
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
- F15B21/08—Servomotor systems incorporating electrically operated control means
-
- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/26—Supply reservoir or sump assemblies
-
- 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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
- F16L23/026—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes by welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a hydraulic control device of an integrated hydraulic station, which comprises a valve block and an oil tank, wherein the valve block is provided with a packaging shell, a motor, a hydraulic pump and an electromagnetic directional valve are sequentially and fixedly arranged in the packaging shell from left to right, the motor is connected with a variable frequency controller, the hydraulic pump is connected with the oil tank below through a hard pipe, an overflow valve is fixed above the hydraulic pump, one end of the overflow valve is connected with the output end of the hydraulic pump, the other end of the overflow valve is connected to the oil tank through a water cooler, the output end of the hydraulic pump is connected with an oil inlet P of the electromagnetic directional valve, an oil port A of the electromagnetic directional valve is in butt joint with an outlet on the right side of the packaging shell, a hollow transmission shaft is arranged in the outlet on the right side of the packaging shell, an. The invention carries out integrated valve block integration installation on the plate valves which are dispersedly installed, reduces noise and vibration and greatly reduces the occupied space.
Description
Technical Field
The invention relates to the technical field of hydraulic equipment, in particular to a hydraulic control device of an integrated hydraulic station.
Background
The hydraulic station is a power source for providing hydraulic pressure for an external system, and the hydraulic station is a system and mainly comprises an oil tank, an oil pump, a motor, various hydraulic valves, oil pipes, various instruments and the like. The hydraulic station is a power source of hydraulic transmission, and is connected with a driving device (oil cylinder) by an oil pipe according to the flow direction required by the driving device, and the direction and the pressure are regulated and controlled by the driving device (oil cylinder) such as a hydraulic valve, so that various specified actions are realized. At present, the rotating speed of a hydraulic station on the market is too low, and a pulsation torque is generated at low frequency, so that the rotating speed of a motor fluctuates, the stability is poor, the response speed is low, the control precision is low, the noise is large, and an oil leakage event is easy to occur. Under the situation that the problems of energy shortage and environmental pollution are becoming more and more serious, the method is more and more emphasized by people in the aspects of reducing noise, reducing oil leakage, saving resources and the like, and becomes a hotspot of current research.
The hydraulic station is developed successfully in succession, and the plate-type connecting hydraulic valve monomer is adopted for installation, so that the hydraulic station is characterized in that the valve body is flexibly installed, the oil way is clear and clear, and the pipeline connection trend is clear at a glance. However, the existing system: the hydraulic control component, the hydraulic assembly, the feedback component, the energy storage tank and the load system have the advantages of insufficient safety, failure in timely alarming when a fault is found, failure in timely feedback when overvoltage, overcurrent, overload and overheating occur, low control precision, high noise, obvious mechanical vibration phenomenon and oil leakage accompanying phenomenon. The mechanical vibration is mainly forced vibration with frequency corresponding to the rotating speed when the rotating shafts of the electric motor, the hydraulic pump and the hydraulic motor run at high speed. This vibration can be transmitted to other pipes, tanks and valves through the pump station foundation or piping. In the use process of the electric motor, the hydraulic pump and the hydraulic motor, the fit clearance is increased and the positions of parts and bearings are shifted due to abrasion deformation, so that high-frequency vibration is caused. The shaft coupling of the motor and the pump can also generate vibration with the same frequency as the rotating speed due to the fact that the two plum blossom petal shafts are not coaxial and too large in deflection. The most common manifestation of these vibrations is the increased noise of the hydraulic system, sometimes up to 90dB or more
Therefore, the existing system has large connection volume, and particularly, the oil way has excessive joints and contacts, which easily causes oil leakage. In order to solve the problem of oil leakage, in addition, because the pump station needs to work at 80-135 ℃ oil temperature sometimes, the oil circuit adopts hard pipe connection, and then strong vibration is easily generated. In practical field application, oil leakage of pipelines and strong vibration of hydraulic station supports are two major problems which plague the application.
Disclosure of Invention
The invention aims to provide a hydraulic control device of an integrated hydraulic station.
The technical scheme adopted by the invention is as follows:
a hydraulic control device of an integrated hydraulic station comprises a valve block and an oil tank arranged below the valve block, wherein the valve block is provided with a packaging shell, a motor, a hydraulic pump and an electromagnetic directional valve are sequentially and fixedly arranged in the packaging shell from left to right corresponding to one side of the oil tank, the motor is connected with a variable frequency controller, the variable frequency controller adjusts the rotating speed and the torque of the motor and drives the motor to control the flow rate and the flow velocity of the hydraulic pump, the hydraulic pump is connected with the oil tank below through a hard pipe, an overflow valve is also fixedly arranged above the hydraulic pump, one end of the overflow valve is connected with the output end of the hydraulic pump, the other end of the overflow valve is communicated with the oil tank through a water cooler, the output end of the hydraulic pump is connected with an oil inlet P of the electromagnetic directional valve, an oil port A of the electromagnetic directional valve is butted with an outlet on the, the other end of the hollow transmission shaft is provided with an oil discharge port and is connected with an oil inlet of the device to be driven through the oil discharge port, and an oil return port of the device to be driven is connected to an oil port B of the electromagnetic directional valve.
Furthermore, the oil passages in the packaging shell are connected by hard pipes.
Furthermore, a flange is sleeved at an outlet on the right side of the packaging shell, and the other end of the flange is sleeved on the hollow transmission shaft, so that leakage of a hydraulic pipeline and tightness between the flange and the packaging shell are prevented.
Further, the flange is installed in a welding mode, so that normal work under high pressure is guaranteed
Furthermore, a sealing ring is arranged between the flange sleeve and the outlet on the right side of the packaging shell so as to ensure that the joint is sealed and oil leakage is avoided.
Furthermore, the oil tank is provided with an oil return port, a flowmeter is arranged on the oil tank corresponding to the oil return port, and the oil return port of the driving device is communicated with the oil tank after being connected with the flowmeter in series.
Further, the flow meter adopts an elliptic gear flow meter.
Further, the hydraulic pump communicates with the oil tank through a first filter.
Further, the output end of the hydraulic pump is connected with the electromagnetic directional valve through a second filter.
Furthermore, a liquid level detector is arranged in the oil tank and displays the liquid level through a liquid level display, and the liquid level display is fixed on the surface of the valve block.
Furthermore, an oil port A of the electromagnetic directional valve is connected with a directional pressure sensor, the output end of the directional pressure sensor is connected with a touch screen pressure display, and the touch screen pressure display is fixed on the surface of the valve block.
By adopting the technical scheme, the oil collecting tank of the hydraulic station, the hydraulic pump, the motor, various hydraulic valves, the oil pipe and various instruments are integrated into a whole. The variable frequency controller is combined with the motor and is connected with the hydraulic pump through a shaft, so that the flow and the flow speed of the hydraulic pump are controlled. The electromagnetic directional valve and the overflow pressure regulating valve are respectively arranged on two different planes on the valve block, and a plurality of filters are arranged on an oil circuit on the plane where the electromagnetic directional valve is arranged. According to the invention, the electromagnetic directional valve, the overflow pressure regulating valve, the liquid level display, the touch screen pressure display, the filter and the elliptic gear flowmeter are integrally mounted on the valve block, and after the oil supply station is improved, the effects of eliminating oil leakage and vibration are obvious. The invention realizes the control of the flow through the flange and the hydraulic valve, and realizes the output of hydraulic oil through the oil discharge port, thereby realizing the movement of the driving device. The hydraulic station is a power source of hydraulic transmission, the hydraulic station is connected with a driving device by an oil pipe according to the flow direction required by the driving device, and the direction and the pressure are regulated and controlled by the driving device such as a hydraulic valve, so that various specified actions are realized. Aiming at the problems of oil leakage, noise and vibration of the hydraulic pump station in the actual production, the invention improves the original single plate type connecting hydraulic valve group in an integrated manner, reduces the noise and overcomes the phenomena of vibration and oil leakage.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and the detailed description;
FIG. 1 is a hydraulic schematic diagram of a hydraulic control device of an integrated hydraulic station according to the present invention;
FIG. 2 is a schematic structural diagram of a valve block of a hydraulic control device of an integrated hydraulic station according to the present invention;
FIG. 3 is a schematic view of the oil drain port of the present invention;
fig. 4 is a schematic view of the flange structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. The technical solution in the present application will be described below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the invention discloses a hydraulic control device of an integrated hydraulic station, which comprises a valve block and an oil tank 1 arranged below the valve block, wherein as shown in fig. 2, the valve block is provided with an enclosure 20, and the upper end of the enclosure 20 is provided with a lifting ring 21 for facilitating lifting and fixing. A motor 4, a hydraulic pump 3 and an electromagnetic directional valve 12 are sequentially and fixedly arranged in the packaging shell 20 from left to right corresponding to one side of the oil tank 1, the motor 4 is connected with a variable frequency controller 5, the variable frequency controller 5 adjusts the rotating speed and the torque of the motor 4 and drives the motor 4 to control the flow and the flow rate of the hydraulic pump 3, the hydraulic pump 3 is connected with the oil tank 1 below the hydraulic pump 3 through a hard pipe, an overflow valve 9 is further fixed above the hydraulic pump 3, one end of the overflow valve 9 is connected with the output end of the hydraulic pump 3, the other end of the overflow valve 9 is communicated to the oil tank 1 through a water cooler 7, the output end of the hydraulic pump 3 is connected with an oil inlet P of the electromagnetic directional valve 12, an oil port A of the electromagnetic directional valve 12 is butted with the right outlet of the packaging shell 20, a hollow transmission shaft 25 is arranged in the right outlet of the packaging shell 20, the output of the oil port A The hollow transmission shaft 25 is different from a transmission shaft of an automobile type and only plays a role of protection, so that a hollow structure is adopted.
As shown in fig. 3, the oil discharge port 23 has an oil discharge port structure of a conventional hydraulic pump. An oil return port of the device to be driven 14 is connected to the oil port B of the electromagnetic directional valve 12.
Further, the connections of the oil passages in the enclosure 20 are all hard pipe connections.
Further, as shown in fig. 2, a flange 22 is sleeved at an outlet on the right side of the enclosure 20, and the other end of the flange 22 is sleeved on the hollow transmission shaft 25 to prevent leakage of the hydraulic pipeline and tightness between the flange 22 and the enclosure 20.
Further, the flange 22 is installed by welding, so as to ensure normal operation under high pressure. The flange 22 is used solely for the connection, mainly for the welding,
further, a sealing ring 24 is provided between the flange 22 and the outlet on the right side of the enclosure 20 to ensure the sealing of the joint against oil leakage.
Specifically, flange 22 is installed at the outlet of valve block integrated enclosure 20 under lifting ring 21 by welding, and sealing ring 24 is used between the flange and the enclosure to prevent leakage of hydraulic pipes and tightness between the flange and the enclosure. The flange 22 is mounted by welding to ensure normal operation under high pressure. The other end of the flange 22 is connected with a hollow transmission shaft 25, the transmission shaft is different from a traditional automobile transmission shaft, a hollow form is adopted, a hydraulic pipeline can conveniently pass through, the hollow transmission shaft 25 is mainly used for protecting the hydraulic pipeline and preventing the hydraulic pipeline from breaking, the mounting flange 22 is convenient to detach, good in sealing performance and capable of conveniently replacing and cleaning the pipeline. Finally, the hydraulic oil is output through the oil discharge port 23, the movement of the driving device is realized, and the normal operation of the actuator is ensured.
Further, the oil tank 1 is provided with an oil return port, the flowmeter 8 is arranged on the oil tank 1 corresponding to the oil return port, and the oil return port of the device 14 to be driven is communicated with the oil tank 1 after being connected with the flowmeter 8 in series.
Further, the flow meter 8 employs an oval gear flow meter 8.
Further, the hydraulic pump 3 communicates with the oil tank 1 through the first filter 2.
Further, the output end of the hydraulic pump 3 is connected to the electromagnetic directional valve 12 through the second filter 10.
Furthermore, a liquid level detector is arranged in the oil tank 1 and displays the liquid level through a liquid level display 11, and the liquid level display 11 is fixed on the surface of the valve block.
Further, an oil port A of the electromagnetic directional valve 12 is connected with a directional pressure sensor, an output end of the directional pressure sensor is connected with a touch screen pressure display 13, and the touch screen pressure display 13 is fixed on the surface of the valve block.
The invention adopts a variable frequency speed regulating motor to provide power for a hydraulic pump, the hydraulic pump provides pressure for hydraulic oil, the pressure passes through a filter, reaches a two-position four-way electromagnetic directional valve, then reaches a device to be driven, and finally returns to an oil tank through an elliptic gear flowmeter. If the pressure of the hydraulic oil pumped into the oil way is too high, the hydraulic oil passes through the overflow valve and then passes through the water cooler and returns to the oil tank. The touch screen pressure display (with a built-in pressure sensor) mainly feeds back the pressure of the outlet of the two-position four-way electromagnetic directional valve in real time, the pressure valve mainly feeds back the pressure of the hydraulic oil passing through the hydraulic pump in real time, and the hydraulic oil passes through the overflow valve and is returned to the oil tank when the pressure exceeds the rated pressure.
The hydraulic station of the invention usually has a working temperature of 80-135 ℃, so the hydraulic station adopts hard pipe connection. Adopt the interconnect between the valve body of intensification, the service length of can effectual reduction hard tube, the degree that can effectual reduction vibration, under the effect of sealing washer 24, more effective reduction oil leak phenomenon. The integrated valve block integration installation is carried out on the plate type valves which are dispersedly installed, a standard loop is formed by standard elements or standard parameter elements according to typical blocks and typical actions, the design time and the change of a basic loop and a hydraulic system of a manufacturing period can be greatly shortened, and the integrated valve block integration installation is flexible. Can save a large number of connecting pipes and joints, and has compact structure and small occupied space. The distance between the hydraulic elements is short, the oil passage is short, the pressure loss is small, the heating is small, the heat dissipation is good, and the efficiency is high. Vibration caused by connecting pipes is reduced and leakage caused by a large number of pipes and joints is also reduced. The hydraulic system has good stability, is convenient to install, maintain and use, and is beneficial to generalization, systematization and standardization.
By adopting the technical scheme, the oil collecting tank 1, the hydraulic pump 3, the motor 4, various hydraulic valves, the oil pipe and various instruments of the hydraulic station are integrated into a whole. The variable frequency controller 5 is combined with the motor and is connected with the hydraulic pump 3 through a shaft, so that the flow and the flow speed of the hydraulic pump 3 are controlled. The electromagnetic directional valve 12 and the overflow pressure regulating valve are respectively arranged on two different planes on the valve block, and a plurality of filters are arranged on an oil path of the plane where the electromagnetic directional valve 12 is arranged. According to the invention, the electromagnetic directional valve 12, the overflow pressure regulating valve, the liquid level display 11, the touch screen pressure display 13, the filter and the elliptic gear flowmeter 8 are integrally installed on the valve block, so that the oil leakage and vibration eliminating effects are obvious after the oil supply station is improved. The invention realizes the control of the flow through the flange 22 and the hydraulic valve, and realizes the output of the hydraulic oil through the oil discharge port 23, thereby realizing the movement of the driving device. The hydraulic station is a power source of hydraulic transmission, the hydraulic station is connected with a driving device by an oil pipe according to the flow direction required by the driving device, and the direction and the pressure are regulated and controlled by the driving device such as a hydraulic valve, so that various specified actions are realized. Aiming at the problems of oil leakage, noise and vibration of the hydraulic pump 3 in the actual production, the invention improves the original single plate type connecting hydraulic valve group in an integrated manner, reduces the noise and overcomes the phenomena of vibration and oil leakage.
In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Claims (10)
1. The utility model provides a hydraulic control device of hydraulic pressure station integrates which characterized in that: the hydraulic control valve comprises a valve block and an oil tank arranged below the valve block, wherein the valve block is provided with a packaging shell, a motor, a hydraulic pump and an electromagnetic directional valve are fixedly arranged in the packaging shell from left to right corresponding to one side of the oil tank in sequence, the motor is connected with a variable frequency controller, the variable frequency controller adjusts the rotating speed and the torque of the motor and drives the motor to control the flow rate and the flow velocity of the hydraulic pump, the hydraulic pump is connected with the oil tank below through a hard pipe, an overflow valve is further fixed above the hydraulic pump, one end of the overflow valve is connected with the output end of the hydraulic pump, the other end of the overflow valve is communicated to the oil tank through a water cooler, the output end of the hydraulic pump is connected with an oil inlet P of the electromagnetic directional valve, an oil port A of the electromagnetic directional valve is butted with an outlet on the right side of the packaging shell, a hollow transmission shaft is arranged, and an oil return port of the device to be driven is connected to an oil port B of the electromagnetic directional valve.
2. The hydraulic control device of an integrated hydraulic station according to claim 1, characterized in that: the oil circuit in the packaging shell is connected by adopting a hard tube.
3. The hydraulic control device of an integrated hydraulic station according to claim 1, characterized in that: the right outlet of the packaging shell is sleeved with a flange, the other end of the flange is sleeved on the hollow transmission shaft, and leakage of a hydraulic pipeline and tightness between the flange and the packaging shell are prevented.
4. The hydraulic control device of an integrated hydraulic station according to claim 3, characterized in that: the flange is installed in a welding mode, and normal work under high pressure is guaranteed.
5. The hydraulic control device of an integrated hydraulic station according to claim 3, characterized in that: and a sealing ring is arranged between the flange sleeve and the outlet on the right side of the packaging shell so as to ensure that the joint is sealed and oil leakage is avoided.
6. The hydraulic control device of an integrated hydraulic station according to claim 1, characterized in that: the oil tank is provided with an oil return port, a flowmeter is arranged on the oil tank corresponding to the oil return port, and the oil return port of the driving device is communicated with the oil tank after being connected with the flowmeter in series.
7. The hydraulic control device of an integrated hydraulic station according to claim 6, wherein: the flowmeter adopts an elliptic gear flowmeter.
8. The hydraulic control device of an integrated hydraulic station according to claim 1, characterized in that: the hydraulic pump is communicated with the oil tank through a first filter, and the output end of the hydraulic pump is connected with the electromagnetic directional valve through a second filter.
9. The hydraulic control device of an integrated hydraulic station according to claim 1, characterized in that: and a liquid level detector is also arranged in the oil tank and displays the liquid level through a liquid level display, and the liquid level display is fixed on the surface of the valve block.
10. The hydraulic control device of an integrated hydraulic station according to claim 1, characterized in that: an oil port A of the electromagnetic directional valve is connected with a directional pressure sensor, the output end of the directional pressure sensor is connected with a touch screen pressure display, and the touch screen pressure display is fixed on the surface of the valve block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010228596.6A CN111255775A (en) | 2020-03-27 | 2020-03-27 | Hydraulic control device of integrated hydraulic station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010228596.6A CN111255775A (en) | 2020-03-27 | 2020-03-27 | Hydraulic control device of integrated hydraulic station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111255775A true CN111255775A (en) | 2020-06-09 |
Family
ID=70953449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010228596.6A Pending CN111255775A (en) | 2020-03-27 | 2020-03-27 | Hydraulic control device of integrated hydraulic station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111255775A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111872240A (en) * | 2020-07-27 | 2020-11-03 | 常州森派智能装备有限公司 | Servo hydraulic squeeze riveter |
| CN113074149A (en) * | 2021-03-11 | 2021-07-06 | 扬州尼尔工程塑料有限公司 | Machining and using method for quickly installing oil supply device on side hydraulic system |
-
2020
- 2020-03-27 CN CN202010228596.6A patent/CN111255775A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111872240A (en) * | 2020-07-27 | 2020-11-03 | 常州森派智能装备有限公司 | Servo hydraulic squeeze riveter |
| CN113074149A (en) * | 2021-03-11 | 2021-07-06 | 扬州尼尔工程塑料有限公司 | Machining and using method for quickly installing oil supply device on side hydraulic system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111255775A (en) | Hydraulic control device of integrated hydraulic station | |
| WO2017215287A1 (en) | Novel lubricating and cooling system utilized in wind power gearbox | |
| CN209129693U (en) | A kind of novel lubricating petrol station system | |
| CN112324759A (en) | Shield machine oil tank water cooling system and shield machine oil tank water cooling control method | |
| CN211951062U (en) | Hydraulic control device of integrated hydraulic station | |
| CN206338380U (en) | The built-in hydraulic oil suck-back device of speed regulation type hydrodynamic coupler | |
| CN113217364B (en) | Plug-in mounting type lubricating oil pump test driving system with oil return function | |
| CN214171020U (en) | Water cooling system for oil tank of shield machine | |
| CN210565479U (en) | Multi-pump parallel connection mechanism group hydraulic station | |
| CN202132316U (en) | Hydraulic pump station | |
| CN213627884U (en) | Easily detachable pump prying block for offshore structure | |
| CN110707874A (en) | Water-cooling integrated small-volume permanent magnet intelligent driving system | |
| CN215762508U (en) | Hydrostatic loader integrated oil circuit block | |
| CN221195549U (en) | Oil tank and accumulator assembly | |
| CN217583320U (en) | Valve convenient to dismantle installation | |
| CN221053901U (en) | Plunger pump combination valve | |
| CN219102062U (en) | Valve electric actuator connector that sealed effect is good | |
| CN217976867U (en) | Expansion module for integrated oil pump | |
| CN215860750U (en) | Plug pump for hydraulic system of jack | |
| CN112000142B (en) | Non-contact pressure controller for pump | |
| CN109078379B (en) | Oil supply device | |
| CN219570826U (en) | Gear box cooling device for high-speed gear | |
| CN212902851U (en) | Multifunctional pipeline cleaning machine | |
| CN220930140U (en) | Oil flow stabilizer of power system | |
| CN220980144U (en) | Automatic water cooling device for bearing pedestal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |