CN209100381U - Pump valve integrates flow control module - Google Patents
Pump valve integrates flow control module Download PDFInfo
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- CN209100381U CN209100381U CN201821826412.0U CN201821826412U CN209100381U CN 209100381 U CN209100381 U CN 209100381U CN 201821826412 U CN201821826412 U CN 201821826412U CN 209100381 U CN209100381 U CN 209100381U
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Abstract
The utility model discloses a kind of pump valves to integrate flow control module, including confluence element and difference integrated installation in two-way pump, electrohydraulic servo valve and pressure sensor on the confluence element, the inside of the confluence element has sprue and branch flow passage, the sprue forms output main road for connecting the two-way pump and controll plant, the branch flow passage forms throttled bypass for connecting the electrohydraulic servo valve and the controll plant, and the pressure sensor is connected to the sprue.Pump valve provided by the utility model integrates flow control module and realizes the highly integrated of fluidic with bus structure, and compression arrangement space reduces number of lines, improves installation maintenance efficiency, reduces production maintenance cost.
Description
Technical field
The utility model belongs to technical field of hydraulic pressure, is a kind of integrated flow control module of pump valve specifically.
Background technique
Hydraulic drive is that a kind of kind of drive of energy transmission and control is carried out using liquid as working media, is passed with machinery
Dynamic, Electrified Transmission constitutes three kinds of main Types of transmission side by side.Based on hydraulic transmission technology, hydraulic control system is in industry
It is used widely in field.
Hydraulic control system provides dynamic foundation with motor, converts pressure for mechanical energy using hydraulic pump and pushes hydraulic
Oil changes the flow direction of hydraulic oil by controlling various valves, thus push hydraulic cylinder realize different trips, different directions it is dynamic
Make, completes the different movement needs of various equipment.Hydraulic control system is easy with stepless speed regulation, dynamic property is good, movement is flat
The advantages that stability is good, self is lubricated is studied more deep in robot field.
Currently, hydraulic system, which is generally required, realizes connection by pipeline.Piping connection technique is cumbersome, pipeline complexity at random,
And need biggish arrangement space and increase layout difficulty, in system oil-way complexity, situation is even more serious, be unfavorable for assembly with
Maintenance, substantially increases production maintenance cost.
Utility model content
A kind of integrated flow control module of pump valve that in order to overcome the deficiencies of the prior art, the utility model provides, with the knot that converges
Structure realizes the highly integrated of fluidic, and compression arrangement space reduces number of lines, improves installation maintenance efficiency, reduces production
Maintenance cost.
The purpose of this utility model is achieved through the following technical solutions:
A kind of integrated flow control module of pump valve, including confluence element and difference integrated installation in two-way on the confluence element
The inside of pump, electrohydraulic servo valve and pressure sensor, the confluence element has sprue and branch flow passage, and the sprue is used for
Connect the two-way pump and controll plant and form output main road, the branch flow passage for connect the electrohydraulic servo valve with it is described
Controll plant and form throttled bypass, the pressure sensor is connected to the sprue.
As an improvement of the above technical solution, the sprue and the branch flow passage are respectively provided with a plurality of change of current ends,
The change of current distal opening is in the surface of the confluence element.
As a further improvement of the above technical scheme, the two-way pump, the electricity are installed in different change of current ends respectively
Hydraulic servo, the pressure sensor and quick coupling, the quick coupling is for realizing external piping connection.
As a further improvement of the above technical scheme, the driving electricity for driving its work is installed on the two-way pump
Machine.
As a further improvement of the above technical scheme, the controll plant is hydraulic cylinder, and the sprue includes first
Runner and second flow channel, the first runner are used to connect one end hydraulic fluid port of the two-way pump and a chamber of the hydraulic cylinder, institute
Second flow channel is stated for connecting one end hydraulic fluid port of the two-way pump and another chamber of the hydraulic cylinder.
As a further improvement of the above technical scheme, the first runner is connected to and common with described second flow channel one end
It is connected to oil feeding reservoirs.
As a further improvement of the above technical scheme, the branch flow passage is arranged in pairs and is connected to the hydraulic cylinder
Two chambers, the electrohydraulic servo valve is arranged correspondingly with the branch flow passage.
As a further improvement of the above technical scheme, the branch flow passage includes mutually isolated Drainage Section and aerial drainage section:
Described Drainage Section one end is connected to the controll plant, and the other end is connected to the oil inlet of the electrohydraulic servo valve；The aerial drainage
Duan Yiduan is connected to the control port of the electrohydraulic servo valve, and the other end is connected to oil return box.
As a further improvement of the above technical scheme, the one of oil inlet of the Drainage Section far from the electrohydraulic servo valve
End is connected to the sprue.
As a further improvement of the above technical scheme, one end setting that the sprue is used to connect with oil feeding reservoirs is unidirectional
Valve.
The beneficial effects of the utility model are:
With element integrated installation two-way pump, electrohydraulic servo valve and the pressure sensor of converging, there is mainstream inside the element that converges
Road and branch flow passage, sprue form output main road for connecting two-way pump and controll plant, and branch flow passage is for connecting electro-hydraulic watch
It takes valve and controll plant and forms throttled bypass, pressure sensor is connected to sprue, forms the integrated stream of highly integrated pump valve
Control module, can Jing luggage tear maintenance open, compression arrangement space reduces number of lines, improves installation maintenance efficiency, reduction production maintenance
Cost.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the first axonometric schematic diagram that the pump valve that the utility model embodiment 1 provides integrates flow control module；
Fig. 2 is the second axonometric schematic diagram that the pump valve that the utility model embodiment 1 provides integrates flow control module；
Fig. 3 is the main view partial schematic diagram that the pump valve that the utility model embodiment 1 provides integrates flow control module；
Fig. 4 is the A-A schematic cross-sectional view that pump valve integrates flow control module in Fig. 3；
Fig. 5 is the B-B schematic cross-sectional view that pump valve integrates flow control module in Fig. 3；
Fig. 6 is the system principle schematic diagram for the pump valve multiplex control system that the utility model embodiment 2 provides；
Fig. 7 is the control principle schematic diagram for the pump valve multiplex control system that the utility model embodiment 2 provides；
Fig. 8 is the control principle frame of the first controller of the pump valve multiplex control system that the utility model embodiment 2 provides
Figure；
Fig. 9 is the control principle frame of the second controller for the pump valve multiplex control system that the utility model embodiment 2 provides
Figure；
Figure 10 is the control principle frame of the third controller for the pump valve multiplex control system that the utility model embodiment 2 provides
Figure.
Main element symbol description:
1- pump valve multiplex control system, 10- pump valve integrate flow control module, and 11- converges element, 111- sprue, 111a- the
One runner, 111b- second flow channel, 112- branch flow passage, the Drainage Section 112a-, 112b- aerial drainage section, 113- change of current end, 12- are two-way
Pump, the first hydraulic fluid port of 121-, the second hydraulic fluid port of 122-, 13- driving motor, 141- first pressure sensor, 142- second pressure sensing
Device, the first electrohydraulic servo valve of 151-, the second electrohydraulic servo valve of 152-, the first check valve of 161-, 162- second one-way valve, 17- are fast
Quick coupling, 20- displacement sensor, the first controller of 31-, 32- second controller, 33- third controller, 40- oil feeding reservoirs, 50-
Oil return box, 60- oil liquid cooler, 70- asymmetrical cylinder.
Specific embodiment
Flow control module is integrated to pump valve below with reference to relevant drawings for the ease of understanding the utility model, to carry out more comprehensively
Description.The preferred embodiment that pump valve integrates flow control module is given in attached drawing.But pump valve integrates flow control module and can pass through
Many different forms are realized, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is
Keep the disclosure for integrating flow control module to pump valve more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element "upper",
There is no intermediary elements.Term as used herein "vertical", "horizontal", "left" and "right" and similar statement are
For illustrative purposes.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.The term used in the description of flow control module is integrated in pump valve herein
It is only for the purpose of describing specific embodiments and is not intended to limit the utility model.Term " and or " used herein
Including any and all combinations of one or more related listed items.
Embodiment 1
Please refer to Fig. 1~5, the present embodiment discloses a kind of pump valve and integrates flow control module 10, including confluence element 11 and
Integrated installation is in two-way pump 12, electrohydraulic servo valve and pressure sensor on confluence element 11 respectively, for providing a kind of height
Integrated pump valve complex controll device, compression arrangement space reduce number of lines, improve installation maintenance efficiency, reduce production dimension
Protect cost.
Element 11 converge for realizing the integrated installation of pump valve fluidic in fluid circuit, and makes these pump valves flow controls member
Part correspondence fluidly connects to form required flow control circuit.Based on this, pump valve, which integrates flow control module 10 and formed, has high intensity simultaneously
The integral unit of fast demountable, without being connected to by pipeline between each pump valve fluidic in module, prevent pipeline wind it is numerous
Multiple drawback, installation maintenance are very convenient.Multiple structural forms can be used in confluence element 11, i.e. such as plate, bulk type, show
Plasticity, confluence element 11 is confluence block structure.
The converge inside of element 11 has sprue 111 and branch flow passage 112, for realizing corresponding pump valve fluidic it
Between fluid communication.Wherein, sprue 111 forms output main road for connecting two-way pump 12 and controll plant, provides controlled
Main driving force needed for object work；Branch flow passage 112 forms throttled bypass for connecting electrohydraulic servo valve and controll plant, real
Now to the flow restriction control of controll plant；Pressure sensor is connected to sprue 111, realizes the pressure monitoring to output main road.
Exemplarily, sprue 111 and branch flow passage 112 are respectively provided with a plurality of change of current ends 113, and change of current end 113 is opened
Mouth is in the surface of confluence element 11.Fluid communication of the change of current end 113 for realizing confluence element 11 and other flow elements, reality
Existing fluid path connection.Diversified forms realization, including the types such as threaded hole, through-hole, connector can be used in change of current end 113.
Exemplarily, two-way pump 12, electrohydraulic servo valve, pressure sensor and fast are installed in different change of current ends 113 respectively
Quick coupling 17, quick coupling 17 is for realizing external piping connection.Wherein, quick coupling 17 integrates flow control for realizing pump valve
The quick connection of the flow elements such as module 10 and controll plant, oil feeding reservoirs 40, oil return box 50.Exemplarily, quick coupling 17 is
Articulated joint is allowed to guarantee that pipeline is compact in preferable link position, it can be achieved that convenient rotation adjusting.
Controll plant selects according to actual needs, for executing corresponding movement.Exemplarily, controll plant is hydraulic
Cylinder, then sprue 111 includes first runner 111a and second flow channel 111b.Wherein, first runner 111a is for connecting two-way pump
12 one end hydraulic fluid port and a chamber of hydraulic cylinder, other end hydraulic fluid port is used to connect oil feeding reservoirs 40 and input hydraulic pressure is oily；Second flow channel
111b is used to connect one end hydraulic fluid port of two-way pump 12 and another chamber of hydraulic cylinder, and other end hydraulic fluid port is defeated for connecting oil feeding reservoirs 40
Enter hydraulic oil.Correspondingly, the first hydraulic fluid port 121 of two-way pump 12 is connect with first runner 111a, the second hydraulic fluid port 122 and second flow channel
111b connection.
Exemplarily, first runner 111a is connected to the one end second flow channel 111b and is commonly connected to oil feeding reservoirs 40, into one
Walk the structure for simplifying sprue 111.Exemplarily, one end setting check valve that sprue 111 is used to connect with oil feeding reservoirs 40, prevents
Only hydraulic oil is surprisingly back to oil feeding reservoirs 40.For example, one end installation first that first runner 111a is used to connect oil feeding reservoirs 40 is single
To valve 161, second flow channel 111b is used to connect one end installation second one-way valve 162 of oil feeding reservoirs 40.Exemplarily, first runner
First pressure sensor 141 is installed on 111a, second pressure sensor 142 is installed on second flow channel 111b.
Exemplarily, branch flow passage 112 includes mutually isolated Drainage Section 112a and aerial drainage section 112b.Wherein, Drainage Section
The one end 112a is connected to controll plant, and the other end is connected to the oil inlet (P mouthfuls) of electrohydraulic servo valve；Aerial drainage one end section 112b difference
It is connected to the control port (A mouthfuls or B mouthfuls) of electrohydraulic servo valve, the other end is connected to oil return box 50.Electrohydraulic servo valve can be real as a result,
Now throttling control.It is appreciated that having the change of current for corresponding respectively to the T (fuel-displaced) of electrohydraulic servo valve/A/B mouthfuls in aerial drainage section 112b
End 113.
It is appreciated that sprue 111 can be connected to controll plant by different change of current ends 113 from branch flow passage 112, also
Identical change of current end 113 can be shared and be connected to controll plant.Exemplarily, oil inlet of the Drainage Section 112a far from electrohydraulic servo valve
One end of mouth is connected to sprue 111, and sprue 111 and branch flow passage 112 is made to share change of current end 113, reduces change of current end 113
Quantity, simplify confluence element 11 structure.
Exemplarily, branch flow passage 112 is arranged in pairs and is connected to two chambers of hydraulic cylinder, electrohydraulic servo valve and branch flow passage
112 are arranged correspondingly.In other words, the quantity of branch flow passage 112 is at least two.It is electro-hydraulic that each branch flow passage 112 installs one respectively
Servo valve, for realizing the by-pass throttle of the chamber to hydraulic cylinder.Since hydraulic cylinder has two chambers, then the first electrohydraulic servo valve
151 for realizing the first chamber by-pass throttle, the second electrohydraulic servo valve 152 for realizing the second chamber by-pass throttle.
Exemplarily, the driving motor 13 for driving its work is installed on two-way pump 12.Driving motor 13 can pass through
Shaft coupling is directly mounted on two-way pump 12, has integrated fastening structure.
Embodiment 2
Fig. 1~7 are please referred to, the present embodiment discloses a kind of pump valve multiplex control system 1, including embodiment 1 is introduced
Pump valve integrate flow control module 10, displacement sensor 20 and control unit, for realizing (controlled right to asymmetrical cylinder 70
As) pump valve complex controll.Illustrate first, the inner cavity of asymmetrical cylinder 70 is divided into rod chamber and no bar by piston
Chamber, piston rod are located in rod chamber.
Wherein, two-way pump 12 and driving motor 13 are for realizing volumetric void fraction purpose.12 one end of two-way pump passes through first-class
Road 111a oil circuit connection is in the rodless cavity of asymmetrical cylinder 70, and the other end is by second flow channel 111b oil circuit connection in asymmetric
The rod chamber of hydraulic cylinder 70.
There are two direction of rotation for the tool of two-way pump 12, realize different output purposes by positive and negative rotation switching.In not Tongfang
To rotation output driving under, asymmetrical cylinder 70 realizes flexible move back and forth.Exemplarily, two-way pump 12 has variable row
It measures and is two-way variable displacement pump, realize that discharge capacity is adjusted by volume variation, there is volumetric void fraction characteristic.12 type of two-way pump is many
It is more, exemplarily, it can be double-direction gearpump.It is appreciated that by the drive control of driving motor 13, two-way pump 12 can be realized
Quick direction switching is adjusted with discharge capacity.
The real-time pressure of two chambers of the pressure sensor for monitoring asymmetrical cylinder 70 respectively.In other words, pressure sensing
The quantity of device is at least two, wherein first pressure sensor 141 is used to monitor the real-time pressure of rodless cavity, second pressure sensing
Device 142 is used to monitor the real-time pressure of rod chamber.Exemplarily, first pressure sensor 141 is installed on the hydraulic fluid port oil of rodless cavity
On road (such as first runner 111a), second pressure sensor 142 is installed on hydraulic fluid port oil circuit (such as the second flow channel of rod chamber
On 111b).
Displacement sensor 20 is used to monitor the real-time displacement of the piston motion of asymmetrical cylinder 70.Displacement sensor 20
Huge number, including linear displacement transducer, magnetostrictive displacement sensor 20, LVDT displacement sensor, drawstring displacement sensing
The types such as device.Exemplarily, displacement sensor 20 is magnetostrictive displacement sensor.
Exemplarily, displacement sensor 20 is integrated in asymmetrical cylinder 70, with the work of asymmetrical cylinder 70
The piston motion of stopper rod and real-time measurement piston displacement.It is appreciated that can be calculated non-according to the measured value of displacement sensor 20
The kinematic parameters such as piston movement speed, the acceleration of symmetrical hydraulic cylinder 70.
The bypass pressure release of two chambers of the electrohydraulic servo valve for realizing asymmetrical cylinder 70 respectively, solves asymmetrical cylinder
Asymmetric drift flow characteristic problem existing for 70.Specifically, due to caused by the two cavity areas asymmetry of asymmetrical cylinder 70
Flow is asymmetric, when rodless cavity is fuel-displaced, rod chamber oil inlet when, extra oil liquid forces two intracavitary pressure to rise, and generates pressure
With position disturbance and cause system power control accuracy decline.Electrohydraulic servo valve lets out the extra oil except two chambers from bypass valve type in real time
Liquid and realize by-pass throttle adjust, eliminate rodless cavity and rod chamber pressure disturbance and position disturbance, to guarantee ideal power
Control precision.
Wherein, the first electrohydraulic servo valve 151 is set to the side bypass (branch flow passage of side of asymmetrical cylinder 70
112), for discharging the extra oil liquid of the rodless cavity of asymmetrical cylinder 70；Second electrohydraulic servo valve 152 is set to asymmetric liquid
The other side of cylinder pressure 70 bypasses (branch flow passage 112 of the other side), the extra oil of the rod chamber for discharging asymmetrical cylinder 70
Liquid.
Exemplarily, pump valve multiplex control system 1 further includes oil return box 50, for receive the first electrohydraulic servo valve 151 with
The extra oil liquid of second electrohydraulic servo valve 152 release.In other words, the oil inlet (P mouthfuls) of the first electrohydraulic servo valve 151 passes through drainage
Section 112a is connected to the rodless cavity of asymmetrical cylinder 70, and control mouth (A mouthfuls or B mouthfuls) is connected to oil return box by aerial drainage section 112b
50；The oil inlet (P mouthfuls) of second electrohydraulic servo valve 152 is connected to the rod chamber of asymmetrical cylinder 70 by Drainage Section 112a,
Control mouth (A mouthfuls or B mouthfuls) is connected to oil return box 50 by aerial drainage section 112b.Exemplarily, oil return box 50 is normal pressure fuel tank.Demonstration
Property, the first electrohydraulic servo valve 151 and the second electrohydraulic servo valve 152 are respectively by 60 oil circuit connection of oil liquid cooler in oil return
Case 50.
Control unit is used for monitor value and asymmetrical cylinder according to the monitor value of pressure sensor, displacement sensor 20
The output torque of 70 target component control driving motor 13, the first electrohydraulic servo valve 151 are let out with the second electrohydraulic servo valve 152
Press flow.Wherein, the target component of asymmetrical cylinder 70 refers to the dynamic object value reached desired by it, including target output
The different motions parameters such as power, the target velocity of piston motion and displacement of targets.
According to aforementioned parameters numerical value, control unit is corresponding to be realized to driving motor 13 (indirectly to two-way pump 12), first
The feedforward control and feedback control of electrohydraulic servo valve 151 and the second electrohydraulic servo valve 152 reduce power control rigidity and enhance submissive
Property, inhibit influence of the position disturbance to power control precision, reduces time lag and improve control sensitivity.
Fig. 7~10 are please referred to, exemplarily, control unit includes the first controller 31, second controller 32 and the
Three controllers 33.Wherein, the first controller 31 is used for the real-time pressure of target component and two chambers according to asymmetrical cylinder 70
Control the output torque of driving motor 13, second controller 32 is used for according to the target component of asymmetrical cylinder 70, two chambers
The real-time displacement of real-time pressure and piston motion controls the opening degree of the first electrohydraulic servo valve 151, and third controller 33 is used for root
The second electro-hydraulic servo is controlled according to the real-time displacement of the target component of asymmetrical cylinder 70, the real-time pressure of two chambers and piston motion
The opening degree of valve 152.
Exemplarily, pump valve multiplex control system 1 further includes oil feeding reservoirs 40, the liquid for pumping needed for providing two-way pump 12
Pressure oil.40 one end of oil feeding reservoirs is connected to rodless cavity, and the other end is connected to rod chamber.Under the pump action of two-way pump 12, fuel feeding
The hydraulic oil of case 40 is correspondingly outputting to rodless cavity or rod chamber.Exemplarily, oil feeding reservoirs 40 is pressurized reservoir, is guaranteed in two-way pump
12 system oil-ways when stopping working prevent air to be mixed into full of oil liquid, and provide oil liquid when two-way pump 12 works.
Exemplarily, output oil port one end of oil feeding reservoirs 40 is connected by the first check valve 161 and first runner 111a oil circuit
It is connected to the rodless cavity of asymmetrical cylinder 70, the other end is by second one-way valve 162 and second flow channel 111b oil circuit connection in non-
The rod chamber of symmetrical hydraulic cylinder 70, the oil liquid in anti-locking system are back to oil feeding reservoirs 40.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to the scope of the utility model.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection scope of utility model.Therefore, the protection scope of the utility model should be determined by the appended claims.
Claims (10)
1. a kind of pump valve integrates flow control module, which is characterized in that including confluence element and difference integrated installation in the confluence member
The inside of two-way pump, electrohydraulic servo valve and pressure sensor on part, the confluence element has sprue and branch flow passage, described
Sprue forms output main road for connecting the two-way pump and controll plant, and the branch flow passage is for connecting described electro-hydraulic watch
It takes valve and the controll plant and forms throttled bypass, the pressure sensor is connected to the sprue.
2. pump valve according to claim 1 integrates flow control module, which is characterized in that the sprue and the branch flow passage point
Not Ju You a plurality of change of current ends, the change of current distal opening in it is described confluence element surface.
3. pump valve according to claim 2 integrates flow control module, which is characterized in that install institute respectively in different change of current ends
Two-way pump, the electrohydraulic servo valve, the pressure sensor and quick coupling are stated, the quick coupling is for realizing external pipe
Road connection.
4. pump valve according to claim 1 integrates flow control module, which is characterized in that be equipped on the two-way pump for driving
Move the driving motor of its work.
5. pump valve according to claim 1 integrates flow control module, which is characterized in that the controll plant is hydraulic cylinder, institute
Stating sprue includes first runner and second flow channel, the first runner be used to connect one end hydraulic fluid port of the two-way pump with it is described
One chamber of hydraulic cylinder, the second flow channel are used to connect one end hydraulic fluid port of the two-way pump and another chamber of the hydraulic cylinder.
6. pump valve according to claim 5 integrates flow control module, which is characterized in that the first runner and the second
Road one end is connected to and is commonly connected to oil feeding reservoirs.
7. pump valve according to claim 5 integrates flow control module, which is characterized in that the branch flow passage is arranged in pairs and distinguishes
Two chambers of the hydraulic cylinder are connected to, the electrohydraulic servo valve is arranged correspondingly with the branch flow passage.
8. pump valve according to claim 1 integrates flow control module, which is characterized in that the branch flow passage includes mutually isolated
Drainage Section and aerial drainage section: described Drainage Section one end is connected to the controll plant, and the other end is connected to the electrohydraulic servo valve
Oil inlet；Aerial drainage section one end is connected to the control port of the electrohydraulic servo valve, and the other end is connected to oil return box.
9. pump valve according to claim 8 integrates flow control module, which is characterized in that electro-hydraulic watched far from described the Drainage Section
The one end for taking the oil inlet of valve is connected to the sprue.
10. pump valve according to claim 1 integrates flow control module, which is characterized in that the sprue is used for and oil feeding reservoirs
Check valve is arranged in one end of connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821826412.0U CN209100381U (en) | 2018-11-05 | 2018-11-05 | Pump valve integrates flow control module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821826412.0U CN209100381U (en) | 2018-11-05 | 2018-11-05 | Pump valve integrates flow control module |
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| Publication Number | Publication Date |
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| CN209100381U true CN209100381U (en) | 2019-07-12 |
Family
ID=67158492
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649018A (en) * | 2020-06-04 | 2020-09-11 | 南京理工大学 | Pump-controlled hydraulic cylinder integrated with external rotor motor |
-
2018
- 2018-11-05 CN CN201821826412.0U patent/CN209100381U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649018A (en) * | 2020-06-04 | 2020-09-11 | 南京理工大学 | Pump-controlled hydraulic cylinder integrated with external rotor motor |
| CN111649018B (en) * | 2020-06-04 | 2022-02-18 | 南京理工大学 | Pump-controlled hydraulic cylinder integrated with external rotor motor |
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