CN201874923U - Electro-hydraulic actuator - Google Patents
Electro-hydraulic actuator Download PDFInfo
- Publication number
- CN201874923U CN201874923U CN2010206082163U CN201020608216U CN201874923U CN 201874923 U CN201874923 U CN 201874923U CN 2010206082163 U CN2010206082163 U CN 2010206082163U CN 201020608216 U CN201020608216 U CN 201020608216U CN 201874923 U CN201874923 U CN 201874923U
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- China
- Prior art keywords
- oil
- main casing
- electro
- oil circuit
- hydraulic actuator
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- Expired - Fee Related
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Abstract
The utility model relates to an electro-hydraulic actuator, which comprises a main casing, wherein an oil tank is arranged at one side of the main casing, an oil pump is arranged in the oil tank and is driven by a motor, the motor is arranged in the main casing, a first oil path and a second oil path are arranged in the main casing, one end of the first oil path and one end of the second oil path are respectively communicated with a hydraulic control valve assembly which is communicated with an oil outlet of the oil pump, the other end of the first oil path and the other end of the second oil path are respectively communicated with an oil cylinder, the oil cylinder is arranged on a main casing, the other side of the main casing is provided with a controller, and the motor is controlled through the controller. The electro-hydraulic actuator belongs to the integrated type electro-hydraulic actuator.
Description
Technical field
The utility model relates to the technical field of final controlling element, is specifically related to a kind of electro-hydraulic actuator.
Background technique
Final controlling element is to be used to drive the also device of control valve operation.Final controlling element can be divided into electric actuator, pneumatic actuator and electro-hydraulic actuator three major types.The electric actuator volume is little, simple to operate, easy to maintenance, control accuracy is high and can realize distant control, but the speed of response of electric actuator is relatively slow, degree of regulation is lower, the safety anti-explosive poor performance; Pneumatic actuator is simple in structure, repair and maintenance is convenient, to good environmental adaptability, and safety anti-explosive, but the pneumatic actuator volume is big, poor stability, control accuracy is not high and noise is bigger; Traditional electro-hydraulic actuator can realize large driving force control, simple to operate, speed governing convenient, control accuracy is high, speed of response is fast, noise is less, but electro-hydraulic actuator needs supporting use hydraulic station and pipeline road and hydraulic control valve assembly, cause that electro-hydraulic actuator is bulky, cost is higher, maintenance workload is big, can only be adapted to bigger workplace.
The model utility content
Technical problem to be solved in the utility model is: provide that a kind of volume is little, cost is low, the electro-hydraulic actuator of easy care.
For addressing the above problem, the technical solution adopted in the utility model is: electro-hydraulic actuator, comprise main casing, one side of main casing is provided with fuel tank, be provided with oil pump in the fuel tank, described oil pump is by motor driving, described motor is arranged in the main casing, be provided with first oil circuit and second oil circuit in the described main casing, one end of first oil circuit and second oil circuit is connected with the hydraulic control valve assembly respectively, described hydraulic control valve assembly is connected with the oil outlet of oil pump, the other end of first oil circuit and second oil circuit is connected with oil cylinder respectively, described oil cylinder is arranged on the main casing, and the opposite side of described main casing is provided with controller, and described motor is controlled by controller.
The front end of described main casing is provided with the control display floater, and described control display floater is connected with controller.
Described oil cylinder is arranged on the rear end of main casing.
Described oil cylinder can be angle stroke oil cylinder or straight journey oil cylinder, and the other end of described first oil circuit and second oil circuit is connected with two chambeies about oil cylinder respectively.
The beneficial effects of the utility model are: above-mentioned electro-hydraulic actuator is a kind of electro-hydraulic actuator of integrated type, and its volume is little, cost is low, easy care, no external hydraulic station, do not have outside hydraulic pipe line, reduced the oil circuit leakage, and does not have tidal bore.In addition, above-mentioned electro-hydraulic actuator is easy for installation, has reduced installing space and installation time, has improved efficient.
Description of drawings
Fig. 1 is the main TV structure schematic representation of electro-hydraulic actuator described in the utility model;
Fig. 2 is the plan structure schematic representation of Fig. 1;
Fig. 3 is the sectional structure schematic representation of A-A direction among Fig. 2;
Fig. 4 is the sectional structure schematic representation that the B-B direction does not comprise oil cylinder among Fig. 1;
Fig. 5 be among Fig. 4 C to the part-structure schematic representation;
Fig. 6 is the structural representation of main casing right side shown in the right apparent direction among Fig. 1;
Fig. 7 is the sectional structure schematic representation of D-D direction among Fig. 6;
Fig. 8 is the broken section structural representation of E-E direction among Fig. 6;
Fig. 9 is the sectional structure schematic representation of F-F direction among Fig. 7;
Figure 10 is the sectional structure schematic representation of G-G direction among Fig. 8;
Among the figure: 1, main casing, 2, fuel tank, 3, oil pump, 4, motor, 5, first oil circuit, an end of 51, first oil circuit, 52, the other end of first oil circuit, 6, second oil circuit, an end of 61, second oil circuit, the other end of 62, second oil circuit, 7, oil cylinder, 8, hydraulic control valve assembly, 9, controller, 10, the control display floater.
Embodiment
Below by specific embodiment the utility model electro-hydraulic actuator is described in further detail.
As Fig. 1, shown in Figure 2, electro-hydraulic actuator, comprise main casing 1, one side of main casing 1 is provided with fuel tank 2, as shown in Figure 3, be provided with oil pump 3 in the fuel tank 2, described oil pump 3 is driven by motor 4, described motor 4 is arranged in the main casing 1, as Fig. 4, Fig. 5, shown in Figure 6, the inside of described main casing 1 is provided with first oil circuit 5 and second oil circuit 6, as Fig. 7, shown in Figure 8, an end 51 of first oil circuit and an end 61 of second oil circuit are connected with hydraulic control valve assembly 8 respectively, hydraulic control valve assembly 8 is connected with the oil outlet of oil pump 3, the other end 52 of first oil circuit and the other end 62 of second oil circuit are connected with two chambeies about oil cylinder 7 respectively, and described oil cylinder 7 can be angle stroke oil cylinder or straight journey oil cylinder, and described oil cylinder 7 is arranged on the rear end of main casing 1, the opposite side of described main casing 1 is provided with controller 9, described motor 4 is by controller 9 controls, and the front end of described main casing 1 is provided with control display floater 10, and described control display floater 10 is connected with controller 9.
Working principle of the present utility model is: during work, after controller 9 receives the aperture signal of valve, controller 9 is according to signal control motor 4 beginning forward or reverse, thereby drive oil pump 3 entrys into service, oil pump 3 pumps high pressure oil from oil outlet, this moment can be by the flow direction of hydraulic control valve assembly 8 control high pressure oils, as Fig. 9, shown in Figure 10, flow into as the end 51 of high pressure oil from first oil circuit, then the other end 52 from first oil circuit enters the chamber of oil cylinder 7, thereby make oil cylinder 7 begin action, the oil in another chamber of oil cylinder 7 flows out by the other end 62 of second oil circuit, and then the end 61 from second oil circuit passes back into the fuel tank 2.Flow into as the end 61 of high pressure oil from second oil circuit, then the other end 62 from second oil circuit enters the chamber of oil cylinder 7, thereby make oil cylinder 7 begin action, oil in another chamber of oil cylinder 7 flows out by the other end 52 of first oil circuit, and then the end 51 from first oil circuit passes back into the fuel tank 2.When oil cylinder 7 arrived the stroke of required action, controller 9 control motors 4 shut down, and make oil cylinder 7 stop action, and hydraulic control this moment valve assembly 8 is closed, and makes oil cylinder 7 keep state of rest.
The beneficial effects of the utility model are: above-mentioned electro-hydraulic actuator volume is little, cost is low, easy care, no external hydraulic station, do not have outside fluid pressure line, reduce that oil circuit leaks, no tidal bore. This design and installation is convenient, has reduced installing space and set-up time, has improved efficient.
Claims (4)
1. electro-hydraulic actuator, comprise main casing, it is characterized in that: a side of main casing is provided with fuel tank, be provided with oil pump in the fuel tank, described oil pump is by motor driving, described motor is arranged in the main casing, be provided with first oil circuit and second oil circuit in the described main casing, one end of first oil circuit and second oil circuit is connected with the hydraulic control valve assembly respectively, described hydraulic control valve assembly is connected with the oil outlet of oil pump, and the other end of first oil circuit and second oil circuit is connected with oil cylinder respectively, and described oil cylinder is arranged on the main casing, the opposite side of described main casing is provided with controller, and described motor is controlled by controller.
2. electro-hydraulic actuator according to claim 1 is characterized in that: the front end of described main casing is provided with the control display floater, and described control display floater is connected with controller.
3. electro-hydraulic actuator according to claim 1 and 2 is characterized in that: described oil cylinder is arranged on the rear end of main casing.
4. electro-hydraulic actuator according to claim 1 and 2 is characterized in that: described oil cylinder can be angle stroke oil cylinder or straight journey oil cylinder, and the other end of described first oil circuit and second oil circuit is connected with two chambeies about oil cylinder respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206082163U CN201874923U (en) | 2010-11-16 | 2010-11-16 | Electro-hydraulic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206082163U CN201874923U (en) | 2010-11-16 | 2010-11-16 | Electro-hydraulic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874923U true CN201874923U (en) | 2011-06-22 |
Family
ID=44162841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206082163U Expired - Fee Related CN201874923U (en) | 2010-11-16 | 2010-11-16 | Electro-hydraulic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874923U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003432A (en) * | 2010-11-16 | 2011-04-06 | 张家港科派斯工业设备有限公司 | Electro-hydraulic actuator |
| CN103264521A (en) * | 2013-05-22 | 2013-08-28 | 东北大学 | Integrated type energy-saving and environment-friendly hydraulic servo system |
-
2010
- 2010-11-16 CN CN2010206082163U patent/CN201874923U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003432A (en) * | 2010-11-16 | 2011-04-06 | 张家港科派斯工业设备有限公司 | Electro-hydraulic actuator |
| CN102003432B (en) * | 2010-11-16 | 2013-05-15 | 张家港市艾罗执行器有限公司 | Electro-hydraulic actuator |
| CN103264521A (en) * | 2013-05-22 | 2013-08-28 | 东北大学 | Integrated type energy-saving and environment-friendly hydraulic servo system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20131116 |