CN203487484U - Novel electrical hydraulic actuator - Google Patents
Novel electrical hydraulic actuator Download PDFInfo
- Publication number
- CN203487484U CN203487484U CN201320499254.3U CN201320499254U CN203487484U CN 203487484 U CN203487484 U CN 203487484U CN 201320499254 U CN201320499254 U CN 201320499254U CN 203487484 U CN203487484 U CN 203487484U
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- Prior art keywords
- cylinder barrel
- valve body
- gear pump
- hydraulic actuator
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Abstract
The utility model discloses a novel electrical hydraulic actuator comprising a case body. The upper end of the case body is provided with a piston rod; the bottom of the case body is provided with an entrance hole; the internal lower end of the case body is provided with an alternating current motor and a gear pump connected therewith; a valve body integrated block is arranged over the gear pump; an oil outlet of the gear pump is connected with the valve body integrated block; a quick descending valve is arranged on the valve body integrated block; in the case body, there is arranged a first-degree cylinder barrel, a first-degree piston rod, a second-degree cylinder barrel, a second-degree piston rod and an internal oil channel; one end of the internal oil channel is communicated with the valve body integrated block; and the other end of the internal oil channel is respectively communicated with the first-degree cylinder barrel and the second-degree cylinder barrel. By the use of the novel electrical hydraulic actuator, bidirectional movement of a non-electromagnetic reversing valve is achieved with adjustable return speed; the internal oil channel employs a double-section hydraulic cylinder with dual function without exposed oil pipes and with compact structure; motor cooling and oil tank integration are realized; and the novel electrical hydraulic actuator is advantaged by short installation size, good protecting ability, high oil cooling efficiency, little leakage points and free of environmental pollution.
Description
Technical field
The utility model relates to hydraulic pressure pile technical field, relates in particular to a kind of Novel electro-hydraulic actuator.
Background technology
In current pile industry, general is used electric railing and a small amount of hydraulic pressure pile (electro-hydraulic actuator) electric railing easily to rush card (especially anti-terrorism, anti-riot), poor stability; Hydraulic pressure pile is, while adopting the hydraulic thrust of single-unit double acting telescoping cylinder to make stake bucket give rise to certain height, to stop vehicle pass-through.Then motor reversal, now outer cylinder bucket deadweight and hydraulic cylinder retraction, steel drum resets to stop and passes through.
But the working environment of hydraulic pressure pile is often severe due to its working environment, as narrow space, the working oil temperature that closes motor, hydraulic pump raise, is difficult to be distributed to and makes motor initial failure.Split-type structural, because sealing part is many, easily produces external leakage, makes hydraulic oil light leak in fuel tank, pollutes environment because of seal failure.
Use single-unit double acting hydraulic cylinder, in order to reach a certain height, locating distance is larger, digs melt pit deep, but because modern urban construction underground utilities are more, deep-cut melt pit thereby be restricted.
Utility model content
The utility model object is exactly in order to make up the defect of prior art, and a kind of Novel electro-hydraulic actuator simple in structure is provided.
The utility model is achieved through the following technical solutions:
A kind of Novel electro-hydraulic actuator, include casing, upper end at casing is provided with piston rod, bottom half is provided with entrance hole, box house lower end is provided with alternating current generator and connected gear pump, gear pump top is provided with valve body integrated package, the oil-out of gear pump is connected with valve body integrated package, valve body integrated package is provided with fast-descending valve, in casing, be also provided with one-level cylinder barrel, first stage piston bar, secondary cylinder barrel, second piston rod and internal oil channel, one end of described internal oil channel is communicated with valve body integrated package, and the other end is communicated with one-level cylinder barrel and secondary cylinder barrel respectively.
The utility model has the advantages that: the utility model is realized bidirectional-movement without solenoid operated directional valve, opening speed is adjustable; Binodal double acting hydraulic cylinder, adopts inner oil duct, without exposing oil pipe, compact conformation; Realize that motor is cooling, fuel tank is integrated, there is installation dimension short, itself protect, the plurality of advantages such as oil cooling temperature efficiency is high, and leakage point is few, free from environmental pollution.
Accompanying drawing explanation
Fig. 1 is the utility model internal view.
Fig. 2 is the utility model overall perspective view.
The specific embodiment
As Fig. 1, shown in 2, a kind of Novel electro-hydraulic actuator, include casing 1, in the upper end of casing 1, be provided with piston rod 2, casing 1 bottom is provided with entrance hole 3, casing 1 interior lower end is provided with alternating current generator 4 and connected gear pump 5, gear pump 5 tops are provided with valve body integrated package 6, the oil-out of gear pump 5 is connected with valve body integrated package 6, valve body integrated package 6 is provided with fast-descending valve 7, in casing 1, be also provided with one-level cylinder barrel 8, first stage piston bar 9, secondary cylinder barrel 10, second piston rod 11 and internal oil channel 12, one end of described internal oil channel 12 is communicated with valve body integrated package 6, the other end is communicated with one-level cylinder barrel 8 and secondary cylinder barrel 10 respectively.
Claims (1)
1. a Novel electro-hydraulic actuator, it is characterized in that: include casing, upper end at casing is provided with piston rod, bottom half is provided with entrance hole, box house lower end is provided with alternating current generator and connected gear pump, gear pump top is provided with valve body integrated package, the oil-out of gear pump is connected with valve body integrated package, valve body integrated package is provided with fast-descending valve, in casing, be also provided with one-level cylinder barrel, first stage piston bar, secondary cylinder barrel, second piston rod and internal oil channel, one end of described internal oil channel is communicated with valve body integrated package, the other end is communicated with one-level cylinder barrel and secondary cylinder barrel respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320499254.3U CN203487484U (en) | 2013-08-15 | 2013-08-15 | Novel electrical hydraulic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320499254.3U CN203487484U (en) | 2013-08-15 | 2013-08-15 | Novel electrical hydraulic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203487484U true CN203487484U (en) | 2014-03-19 |
Family
ID=50258326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320499254.3U Expired - Fee Related CN203487484U (en) | 2013-08-15 | 2013-08-15 | Novel electrical hydraulic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203487484U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018444A (en) * | 2014-05-24 | 2014-09-03 | 王声扬 | Power integrated multifunctional road pile |
| CN104963740A (en) * | 2015-07-09 | 2015-10-07 | 沈阳东北电力调节技术有限公司 | Valve adjusting system of triangular support steam distribution of turbine with 1 MW or below |
| CN105041390A (en) * | 2015-07-09 | 2015-11-11 | 沈阳东北电力调节技术有限公司 | Integrated electric-hydraulic actuator type valve adjusting system for steam turbine |
-
2013
- 2013-08-15 CN CN201320499254.3U patent/CN203487484U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018444A (en) * | 2014-05-24 | 2014-09-03 | 王声扬 | Power integrated multifunctional road pile |
| CN104963740A (en) * | 2015-07-09 | 2015-10-07 | 沈阳东北电力调节技术有限公司 | Valve adjusting system of triangular support steam distribution of turbine with 1 MW or below |
| CN105041390A (en) * | 2015-07-09 | 2015-11-11 | 沈阳东北电力调节技术有限公司 | Integrated electric-hydraulic actuator type valve adjusting system for steam turbine |
| CN105041390B (en) * | 2015-07-09 | 2016-07-06 | 沈阳东北电力调节技术有限公司 | Integrating electro-hydraulic actuator formula steam turbine porthole regulates system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20140815 |
|
| EXPY | Termination of patent right or utility model |