CN2577023Y - Electrohydraulic actuator - Google Patents
Electrohydraulic actuator Download PDFInfo
- Publication number
- CN2577023Y CN2577023Y CN 02286730 CN02286730U CN2577023Y CN 2577023 Y CN2577023 Y CN 2577023Y CN 02286730 CN02286730 CN 02286730 CN 02286730 U CN02286730 U CN 02286730U CN 2577023 Y CN2577023 Y CN 2577023Y
- Authority
- CN
- China
- Prior art keywords
- oil
- hydraulic
- fuel tank
- pressure
- utility
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an electrohydraulic actuator, and belongs to a driving and actuating mechanism in a hydraulic machinery field. The utility model can be used for industries of power plants, metallurgy, mines, etc. The utility model comprises a motor, an oil tank and a hydraulic oil cylinder, wherein, one end of the outer side of the oil tank is connected with the motor, and the other end of the outer side of the oil tank is connected with the hydraulic oil cylinder. The upper part of a back wall plate of the outer part of the oil tank is provided with a basal plate which is connected with an oil passage integrated block, and a hydraulic lock, a pressure regulating valve and an electromagnetic reversing valve are arranged on the oil passage integrated block. Two oil ports of the oil passage integrated block are connected with two oil ports of the hydraulic oil cylinder by a high-pressure oil tube, and the inner part of the oil box is provided with a shaft coupling, a one-way gear pump and a high-pressure oil filter. The shaft coupling is connected with the one-way gear pump, and one end of the high-pressure oil filter is connected with the one-way gear pump. The other end of the high-pressure oil filter is connected with the back wall plate of the oil tank. The utility model has the advantages of reasonable structural design, small size, reasonable design for pressure measuring position, convenient assembly, maintenance and repair, etc., and the oil tank can be produced according to designs.
Description
Affiliated field:
The utility model relates to a kind of electro-hydraulic actuator, belongs to the driving actuator in hydraulic machinery field, can be widely used in industries such as power plant, metallurgy, mine.
Background technique:
The traditional electrical hydraulic actuator leans on stretching out of motor positive and inverse control piston bar and withdraws, the oil circuit integrated valve is contained in fuel tank internal, and the oil circuit integrated valve is made by oneself by manufacturer, the product of the maturation of also finalizing the design in China, the internal structure of each producer and outer type size are also inequality, and this brings very burden in regular maintenance, maintenance just for the user.
The utility model is another generation new product of developing on the basis of 01231424.2 Electrohydraulic push rod.
Summary of the invention:
The purpose of this utility model is in order to overcome above-mentioned the deficiencies in the prior art part, and a kind of reasonable in design is provided, the fuel tank production of can finalizing the design, and volume is little, and the pressure measurement Position Design is reasonable, and assembling, maintenance, repair are electro-hydraulic actuator easily.
The purpose of this utility model is achieved in that it comprises motor, fuel tank, hydraulic jack, the outside one end of fuel tank links to each other with motor, the other end links to each other with hydraulic jack, substrate is equipped with on the outside rear wall plate of fuel tank top, the oil circuit integrated package links to each other with substrate, hydraulic lock, pressure regulator valve and solenoid directional control valve are housed on the oil circuit integrated package, and two hydraulic fluid ports of oil circuit integrated package link to each other with two hydraulic fluid ports of hydraulic jack by high-pressure oil pipe; Fuel tank internal is provided with coupling, ratchet pump and high pressure filter, and coupling links to each other with the ratchet pump, and high pressure filter one end links to each other with the ratchet pump, and the other end links to each other with the fuel tank rear wall plate.
Described hydraulic jack also can be arranged in parallel with fuel tank.
Compared with prior art, the utlity model has following advantage:
1, the fuel tank production of can finalizing the design can be mated different strokes with a series of fuel tanks, the hydraulic jack of different-diameter, thus can realize different push-pull effort requirements, for the user saves the writing spending.
2, assembling, maintenance, repair are conveniently, because hydraulic jack, oil circuit integrated package, various hydrovalve are positioned at outside the fuel tank, only need motor, fuel tank, oil circuit integrated package and hydrovalve are linked together and can use, when changing oil cylinder or hydrovalve, the user needn't take motor and fuel tank apart, and externally promptly replaceable.In addition, various hydrovalves are commercial elements, bring great convenience to the user.
3, the pressure measurement position externally, maintenance, debugging are accurately convenient.
Description of drawings:
Fig. 1 is first embodiment of the utility model (straight formula) structural representation.
Fig. 2 is the right elevation of Fig. 1.
Fig. 3 is second embodiment of the utility model (parallel type) structural representation.
Fig. 4 is a fundamental diagram of the present utility model.
Embodiment:
Embodiment 1, as shown in Figure 1 and Figure 2, it comprises motor 8, fuel tank 10, hydraulic jack 4, the outside one end of fuel tank 10 links to each other with motor 8, the other end links to each other with hydraulic jack 4, there is substrate 13 on fuel tank 10 outside rear wall plates 14 tops with Bolt Connection, oil circuit integrated package 2 links to each other with substrate 13, and hydraulic lock 12, pressure regulator valve 11 and solenoid directional control valve 1 are housed on the oil circuit integrated package 2, and two hydraulic fluid ports of oil circuit integrated package 2 link to each other with two hydraulic fluid ports of hydraulic jack 4 by high-pressure oil pipe 3; Fuel tank 10 inside are provided with coupling 7, ratchet pump 6 and high pressure filter 5, coupling 7 links to each other with ratchet pump 6, high pressure filter 5 one ends link to each other with ratchet pump 6, the other end links to each other with fuel tank rear wall plate 14, connecting mode is that plug-in mounting connects, and on the joint of high-pressure oil pipe 3 pressure measuring tie-in is installed.A drop tank 9 also can be adorned in fuel tank 10 outsides, for using when big with oil mass.
Working principle of the present utility model: as shown in Figure 4, motor 8 starts, and ratchet pump 6 is from fuel tank 10 oil suctions, high pressure oil is squeezed into solenoid directional control valve 1 by oil purifier 5,16, if 1DT and 2DT be no electric circuit, then solenoid directional control valve 1 is in meta, and this moment, high pressure oil was by pressure regulator valve 11 oil sump tanks 10; When 1DT charged, high pressure oil is by intersecting oil circuit, right one-way valve, Double throttle check valve 15 right one-way valves and high-pressure oil pipe 3 by hydraulic lock 12 enter oil cylinder 4 back cavities, meanwhile, hydraulic lock 12 internal control oil circuits are opened the left side one-way valve, oil cylinder 4 ante-chambers are communicated with fuel tank 10, and piston rod stretches out; Otherwise when 2DT was charged, a telescopic process was finished in the piston rod withdrawal.No matter what position piston is parked in, and the chamber, front and back of oil cylinder 4 can both keep-up pressure and lock.
The utility model and computernetworking also can be realized telecontrol.
Claims (2)
1, a kind of electro-hydraulic actuator, it comprises motor, fuel tank, hydraulic jack, the outside one end of fuel tank links to each other with motor, the other end links to each other with hydraulic jack, it is characterized in that: substrate is equipped with on the outside rear wall plate of fuel tank top, the oil circuit integrated package links to each other with substrate, and hydraulic lock, pressure regulator valve and solenoid directional control valve are housed on the oil circuit integrated package, and two hydraulic fluid ports of oil circuit integrated package link to each other with two hydraulic fluid ports of hydraulic jack by high-pressure oil pipe; Fuel tank internal is provided with coupling, ratchet pump and high pressure filter, and coupling links to each other with the ratchet pump, and high pressure filter one end links to each other with the ratchet pump, and the other end links to each other with the fuel tank rear wall plate.
2, electro-hydraulic actuator according to claim 1 is characterized in that described hydraulic jack also can be arranged in parallel with fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02286730 CN2577023Y (en) | 2002-11-03 | 2002-11-03 | Electrohydraulic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02286730 CN2577023Y (en) | 2002-11-03 | 2002-11-03 | Electrohydraulic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2577023Y true CN2577023Y (en) | 2003-10-01 |
Family
ID=33747346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02286730 Expired - Fee Related CN2577023Y (en) | 2002-11-03 | 2002-11-03 | Electrohydraulic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2577023Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006015A (en) * | 2014-05-22 | 2014-08-27 | 南通东海机床制造有限公司 | Pressure maintaining and speed stabilizing hydraulic system of hydraulic machine |
| CN106704303A (en) * | 2017-01-20 | 2017-05-24 | 华中科技大学无锡研究院 | Linear portable electric-hydraulic actuator |
| CN107061381A (en) * | 2017-04-22 | 2017-08-18 | 新乡市新倍增自动化设备有限公司 | A kind of Electrical hydrostatic actuator variable volume fuel tank |
-
2002
- 2002-11-03 CN CN 02286730 patent/CN2577023Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006015A (en) * | 2014-05-22 | 2014-08-27 | 南通东海机床制造有限公司 | Pressure maintaining and speed stabilizing hydraulic system of hydraulic machine |
| CN106704303A (en) * | 2017-01-20 | 2017-05-24 | 华中科技大学无锡研究院 | Linear portable electric-hydraulic actuator |
| CN107061381A (en) * | 2017-04-22 | 2017-08-18 | 新乡市新倍增自动化设备有限公司 | A kind of Electrical hydrostatic actuator variable volume fuel tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |