CN215861033U - Intelligent pump based on RDDV servo valve variable control - Google Patents
Intelligent pump based on RDDV servo valve variable control Download PDFInfo
- Publication number
- CN215861033U CN215861033U CN202121622685.5U CN202121622685U CN215861033U CN 215861033 U CN215861033 U CN 215861033U CN 202121622685 U CN202121622685 U CN 202121622685U CN 215861033 U CN215861033 U CN 215861033U
- Authority
- CN
- China
- Prior art keywords
- rddv
- servo valve
- mounting seat
- pump body
- adapter
- 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.)
- Active
Links
Images
Landscapes
- Reciprocating Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses an intelligent pump based on RDDV servo valve variable control, which comprises a pump body, an RDDV servo valve, an angular displacement sensor, a switching seat, a mounting seat and a damping throat plug, wherein the pump body is provided with a plurality of radial grooves; wherein: the variable piston control oil path interface of the pump body is fixedly connected with one side of the adapter, the other side of the adapter is connected with the mounting seat, and a damping choke plug is mounted in the mounting seat; the mounting seat is provided with an RDDV servo valve which is vertical to a transmission shaft of the pump body. The intelligent pump is mainly used for realizing the self-adaptive rapid adjustment and matching functions of the servo system driving device along with the system load, so that the servo system driving device and the load form ideal flow, pressure and power matching, the invalid power consumption of the system is reduced, and the working efficiency of the system is improved.
Description
Technical Field
The utility model relates to the technical field of hydraulic servo systems, in particular to an intelligent pump based on RDDV servo valve variable control.
Background
The control mode of the hydraulic servo system can be divided into a throttle valve control mode and a displacement pump control mode, the throttle valve control servo system is generally adopted as a control device on the high-end hydraulic servo system at present and is used for controlling force or position, the long-time working performance requirement of the servo system is higher and higher along with the field of high-end hydraulic servo control, and the traditional valve control system has lower system efficiency due to larger throttling, overflowing and leakage loss, is serious in heating and warming after long-time working and cannot meet the requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an intelligent pump based on RDDV servo valve variable control, which realizes the functions of self-adaptive rapid adjustment and matching of a servo system driving device along with the system load, can form ideal flow, pressure and power matching with the load, reduces the invalid power consumption of the system and improves the working efficiency of the system.
The technical scheme for realizing the purpose of the utility model is as follows: an intelligent pump based on RDDV servo valve variable control comprises a pump body, an RDDV servo valve, a switching seat and a mounting seat; wherein: the variable piston control oil path interface of the pump body is fixedly connected with one side of the adapter, the other side of the adapter is connected with the mounting seat, the RDDV servo valve is mounted on the mounting seat, and the RDDV servo valve is perpendicular to a transmission shaft of the pump body.
Further, an angular displacement sensor is integrally mounted on a swash plate of the pump body.
Furthermore, the adapter is connected with the pump body, the mounting seat and the adapter through fasteners respectively.
Further, the fastener includes a fastening screw and a washer.
Furthermore, the RDDV servo valve is fixedly connected with the mounting seat through a fastening screw.
Furthermore, a damping throat plug is installed in the installation seat.
Further, the damping throat plug is installed in the installation seat through threads.
Compared with the prior art, the utility model has the following remarkable advantages:
(1) the mode of combining a plunger pump and an RDDV servo valve is adopted, the pump variable mechanism is optimally designed and improved, the invalid power consumption of the system is reduced, and the working efficiency of the system is improved;
(2) the RDDV servo valve can adjust the size of a servo valve window according to a load pressure value detected in real time, and the RDDV servo valve is used for directly controlling the position of a variable piston, so that the change of the inclination angle of a swash plate is controlled, and the requirement of a system on high dynamic response speed can be met;
(3) the adapter and the mounting seat are directly adopted to fixedly connect the pump body and the servo valve, so that the structure is simple and the mounting is convenient;
(4) the RDDV servo valve can be digitally controlled, the control precision is high, the adjustment performance of the system is improved, and the control form is richer;
(5) the utility model adopts the RDDV servo valve, has no throttling and overflow loss and has high volumetric efficiency.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent pump according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1, the intelligent pump based on the RDDV servo valve variable control comprises a pump body 1, an RDDV servo valve 2, an angular displacement sensor 3, an adapter 4, a mounting seat 5, a damping throat plug 6, a fastening screw 7 and a gasket 8. The pump body 1 is obtained by removing a proportional servo valve of a load-sensitive pump variable mechanism from an existing conventional plunger pump, and the structure of the pump body is not described in detail herein.
Adapter 4 passes through fastener and pump body 1's variable piston control oil circuit interface fixed connection, mount pad 5 passes through fastener and adapter 4 fixed connection, the fastener includes fastening screw 7 and packing ring 8.
The RDDV servo valve 2 is fixedly connected with the mounting seat 5 through a fastening screw, and the RDDV servo valve 2 is vertically installed with a transmission shaft of the pump body 1.
The damping throat plug 6 is directly mounted in the mounting seat 5 through threads.
The angular displacement sensor 3 is directly integrated on the swash plate of the pump body 1, can detect and display the inclination angle of the swash plate of the intelligent pump in real time, and realizes the change of the oil inlet and the oil outlet of the intelligent pump.
The intelligent pump directly sends a detected system load signal to the RDDV servo valve 2, the RDDV servo valve 2 adjusts the size of a servo valve window after receiving an instruction signal, controls the flow and pressure of oil, controls the oil to directly enter a variable piston to control the position of a piston, further changes the inclination angle of a swash plate of the pump body 1, and realizes that the pressure and the flow output by the pump meet the requirement of load change.
The hydraulic servo system based on the volume control mode has the advantages that the output pressure and the flow of the volume control mode are changed along with the load requirement, throttling and overflow losses do not exist, and the volume efficiency is high. The RDDV servo valve can control the position of a variable piston according to the detected load condition, so that the inclination angle of the swash plate is changed, and the pump outputs pressure and flow matched with the load under the condition of unchanged rotating speed, so that the invalid power consumption of the system is reduced, and the working efficiency of the system is improved.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the utility model, and these modifications and improvements are also considered to be within the scope of the utility model.
Claims (7)
1. An intelligent pump based on RDDV servo valve variable control comprises a pump body (1), and is characterized by further comprising an RDDV servo valve (2), an adapter (4) and a mounting seat (5); wherein: the variable piston control oil path interface of the pump body (1) is fixedly connected with one side of the adapter seat (4), the other side of the adapter seat (4) is connected with the mounting seat (5), the RDDV servo valve (2) is mounted on the mounting seat (5), and the RDDV servo valve (2) is perpendicular to a transmission shaft of the pump body (1).
2. A smart pump according to claim 1, characterized in that an angular displacement sensor (3) is integrally mounted on the swash plate of the pump body (1).
3. The intelligent pump according to claim 1, wherein the adapter (4) is connected with the pump body (1), the mounting seat (5) and the adapter (4) through fasteners respectively.
4. A smart pump according to claim 3, wherein the fasteners comprise fastening screws (7) and washers (8).
5. The smart pump according to claim 1, characterized in that the RDDV servo valve (2) is fixedly connected with the mounting seat (5) by means of fastening screws.
6. A smart pump according to any of claims 1 to 5, characterised in that a damping throat plug (6) is mounted in the mounting seat (5).
7. A smart pump according to claim 6, characterised in that the damping throat plug (6) is screw-mounted in a mounting (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121622685.5U CN215861033U (en) | 2021-07-16 | 2021-07-16 | Intelligent pump based on RDDV servo valve variable control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121622685.5U CN215861033U (en) | 2021-07-16 | 2021-07-16 | Intelligent pump based on RDDV servo valve variable control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215861033U true CN215861033U (en) | 2022-02-18 |
Family
ID=80334467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121622685.5U Active CN215861033U (en) | 2021-07-16 | 2021-07-16 | Intelligent pump based on RDDV servo valve variable control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215861033U (en) |
-
2021
- 2021-07-16 CN CN202121622685.5U patent/CN215861033U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101865190B (en) | Position and flow double-close-loop direct-drive volume control electro-hydraulic servo system | |
| CN105386953B (en) | Digital flow-distribution constant-flow radial plunger pump | |
| CN107143540B (en) | Digital load sensing hydraulic control system and method | |
| CN101550921A (en) | Variable control system of plunger variable pump | |
| CN109469594B (en) | Continuous pressure regulating electro-hydraulic proportional axial plunger variable pump for aircraft hydraulic system | |
| CN201461362U (en) | Variable control mechanism of plunger piston variable pump | |
| CN101561021B (en) | Applications-oriented control device of speed-regulating clutch and control method thereof | |
| CN216044756U (en) | Automatic deceleration oil cylinder structure | |
| CN215861033U (en) | Intelligent pump based on RDDV servo valve variable control | |
| CN103738396A (en) | Constant flow steering system and engineering machinery | |
| CN113153843A (en) | Double-pump confluence paver load-sensitive hydraulic system and control method thereof | |
| CN206958033U (en) | A kind of digital load-sensitive hydraulic control architectures | |
| CN103775321B (en) | Hydraulic resistance balance formula servocontrol volume adjustable hydraulic pump | |
| CN2114071U (en) | Butterfly valve for controlling electrolyte proportion | |
| CN106438584A (en) | Motor speed regulation based variable-pressure variable-displacement type hydraulic servo mechanism and working method | |
| CN203114798U (en) | Energy-saving servo hydraulic station | |
| CN1159146C (en) | Energy saving device of frequency change injection moulding machine and its energy saving method | |
| CN206158976U (en) | Hydraulic pump servo control structure | |
| CN202971072U (en) | Inverse proportional electric load-sensitive variable plunger pump | |
| CN204851560U (en) | Positive flow control electric proportional pump | |
| CN2589425Y (en) | Load sensitive confluent hydraulic system for loader | |
| CN219865674U (en) | Thickener and hydraulic control system of harrow frame driving hydraulic motor thereof | |
| CN202658654U (en) | Hydraulic pump power control device of excavator | |
| CN115013275B (en) | Load-sensitive digital axial plunger pump with active valve flow distribution and working method thereof | |
| CN113027870B (en) | Independent heat dissipation system of all-terrain armored vehicle and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |