CN102384124A - Integral type minisize electrohydraulic actuator - Google Patents
Integral type minisize electrohydraulic actuator Download PDFInfo
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- CN102384124A CN102384124A CN2011102727835A CN201110272783A CN102384124A CN 102384124 A CN102384124 A CN 102384124A CN 2011102727835 A CN2011102727835 A CN 2011102727835A CN 201110272783 A CN201110272783 A CN 201110272783A CN 102384124 A CN102384124 A CN 102384124A
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- valve block
- oil circuit
- oil
- integrated valve
- motor
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Abstract
The invention discloses an integral type minisize electrohydraulic actuator, which comprises a main oil tank, an auxiliary oil tank, a motor, a hydraulic pump, a pile-up valve block and a hydrocylinder. The hydraulic pump is disposed above the motor and connected to an output shaft of the motor, the pile-up valve block is arranged above the hydraulic pump and connected to an output oil line of the hydraulic pump, the auxiliary oil tank is sleeved on the outer sides of the hydraulic pump and the motor and connected to the pile-up valve block, the hydrocylinder is disposed on the pile-up valve block and connected to a control oil line of the pile-up valve block, and the main oil tank is sleeved on the outer side of the hydrocylinder and connected to the pile-up valve block. The control oil line is arranged inside the pile-up valve block, and a hydraulic drive station and a mechanical actuating mechanism are combined into a whole body, so that the integral type minisize electrohydraulic actuator has the advantages of being small in volume, compact in structure, good in stability and convenient to use.
Description
Technical field
The present invention relates to the lifting and the opening/closing mechanism of the hydraulic control of hydraulic machinery equipment technical field, in particular for a kind of integral minitype electro-hydraulic actuator of up-down roadblock.
Background technique
The lifting of hydraulic control and opening/closing mechanism are widely used in various machinery, for example: the railway carriage that hydraulic lifting roadblock, aerofoil profile are opened, storage transfer vehicle, light-duty stacking machine etc.Usually supporting lifting and opening/closing mechanism formed with mechanical actuating mechanism by electrical equipment control, hydraulic control part in the machinery; And mostly the hydraulic control part is external hydraulic driving station; The hydraulic line that need lay long distance between hydraulic driving station and the mechanical actuating mechanism is connected, and causes that machinery is bulky, loosely organized, poor stability.
Summary of the invention
A kind of integral minitype electro-hydraulic actuator that the objective of the invention is to be directed against the deficiency of existing technology and provide; It is arranged on control circuit and control oil channel in the integrated valve block; The combination of hydraulic driving station and mechanical actuating mechanism is as a whole, have that volume is little, compact structure, good stability and characteristics easy to use.
The concrete technological scheme that realizes the object of the invention is:
A kind of integral minitype electro-hydraulic actuator, its characteristics comprise main fuel tank, drop tank, motor, oil hydraulic pump, integrated valve block and hydraulic jack, and main fuel tank and drop tank are cylinder-shaped, and integrated valve block is a bar shape, is provided with control oil channel in the integrated valve block; Said main fuel tank, integrated valve block and drop tank connect and compose a cylinder successively; Oil hydraulic pump connects the integrated valve block oil circuit and is located at the integrated valve block below; The oil hydraulic pump main shaft is connected with motor output shaft; Drop tank is set in outside oil hydraulic pump and the motor and with integrated valve block and is connected; Said hydraulic jack is located on the integrated valve block and is connected the integrated valve block oil circuit; Main fuel tank is set in outside the hydraulic jack and with integrated valve block and is connected; Be provided with first oil circuit and second oil circuit in the said integrated valve block; First oil circuit is provided with first Pilot operated check valve; Second oil circuit is provided with second Pilot operated check valve, is provided with the first control bypass between first oil circuit and second Pilot operated check valve, is provided with the second control bypass between second oil circuit and first Pilot operated check valve; First oil circuit is connected with first pilot operated compound relief valve, and second oil circuit is connected with second pilot operated compound relief valve; The top of described main fuel tank is provided with loam cake, on cover and be provided with the piston rod hole; The bottom of described drop tank is provided with bottom; Be provided with the oil circuit that is communicated with between described main fuel tank and the drop tank; Be connected with electric control box on the motor, electric control box is connected with control switch.
The present invention is arranged on control circuit and control oil channel in the integrated valve block, and the combination of hydraulic driving station and mechanical actuating mechanism is as a whole, has that volume is little, compact structure, good stability and an advantage easy to use.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a control oil channel structural representation of the present invention.
Embodiment
Consult Fig. 1, Fig. 2; The present invention includes main fuel tank 1, drop tank 2, motor 3, oil hydraulic pump 4, integrated valve block 5 and hydraulic jack 6; Said main fuel tank 1, drop tank 2 are cylinder-shaped, and said motor 3 is the oil immersion motor, and oil hydraulic pump 4 is a two-way pump; Integrated valve block 5 is a bar shape, is provided with control oil channel in it; Said main fuel tank 1, integrated valve block 5 and drop tank 2 connect and compose a cylinder successively; The main shaft of said oil hydraulic pump 4 is connected with the output shaft of motor 3; Oil hydraulic pump 4 and motor 3 be located at integrated valve block 5 below; And oil hydraulic pump 4 is connected with the working connection of integrated valve block 5; The outside that drop tank 2 is sleeved on oil hydraulic pump 4 and motor 3 was connected with the following of integrated valve block 5, and said hydraulic jack 6 is located at above the integrated valve block 5 and with the working connection of integrated valve block 5 and is connected, and main fuel tank 1 is sleeved on the outside and 5 top connections of integrated valve block of hydraulic jack 6; Be provided with first oil circuit 54, second oil circuit 52, first Pilot operated check valve 53, second Pilot operated check valve 55, first pilot operated compound relief valve 51, second pilot operated compound relief valve 57, the first control bypass 59 and the second control bypass 58 in the said integrated valve block 5; Be provided with first Pilot operated check valve 53 in said first oil circuit 54; Be provided with second Pilot operated check valve 55 in second oil circuit 52; Be provided with the first control bypass 59 between first oil circuit 54 and second Pilot operated check valve 55; Be provided with the second control bypass, 58, the first pilot operated compound relief valves 51 between second oil circuit 52 and first Pilot operated check valve 53 and be connected with first oil circuit 54, second pilot operated compound relief valve 57 is connected with second oil circuit 52; The top of described main fuel tank 1 is provided with loam cake 11, and loam cake 11 is provided with piston rod hole 12; The bottom of described drop tank 2 is provided with bottom 21; Be communicated with through oil circuit between described main fuel tank 1 and the drop tank 2; Motor 3 is connected with electric control box 7, and electric control box 7 is connected with control switch 8.
Embodiment
As hydraulic lifting roadblock (consulting Fig. 1), its working procedure is following with the present invention: start-up control switch 8, and motor 3 drives oil hydraulic pump 4 forward work; Pressure oil gets into the rodless cavity of hydraulic jack 6 through integrated valve block 5; Simultaneously, oil return is flowed out from the rod chamber of hydraulic jack 6, gets back to main fuel tank 1 through integrated valve block 5; Piston rod stretches out from the piston rod hole 12 of loam cake 11, accomplishes piston rod and stretches out; Otherwise motor 3 counter-rotatings drive oil hydraulic pump 4 reverse operations, and pressure oil is through the rod chamber of integrated valve block 5 entering hydraulic jacks 6, and simultaneously, oil return is flowed out from the rodless cavity of hydraulic jack 6, gets back to main fuel tank 1 through integrated valve block 5, accomplishes the piston rod withdrawal.
Owing to be communicated with through oil circuit between main fuel tank 1 and the drop tank 2, the hydraulic oil of getting back to main fuel tank 1 by hydraulic jack 6 is got back to drop tank 2 interior oil feed pumps automatically and is recycled.
When the present invention was used as the hydraulic lifting roadblock, the bottom 21 that the bottom of drop tank 2 is provided with can be the pedestal that is connected with ground.
The motor 3 that the present invention adopts is the oil immersion motor of two-way rotation, because motor 3 is immersed in the drop tank 2, hydraulic oil is implemented cooling work to motor 3 in 6 work of feed flow compressing cylinder.
Consult Fig. 2, the working procedure of the control oil channel of integrated valve block 5 of the present invention: motor 3 drives oil hydraulic pump 4 forward work, and the pressure oil of first oil circuit 54 is opened first Pilot operated check valve 53; Get into the rodless cavity of hydraulic jack 6; Simultaneously, second Pilot operated check valve 55 is opened in the first control bypass 59, and oil return is flowed out from the rod chamber of hydraulic jack 6; Get back to main fuel tank 1 through second oil circuit 52 through second Pilot operated check valve 55 and second pilot operated compound relief valve 57, accomplish piston rod and stretch out; Motor 3 reverse operations drive oil hydraulic pump 4 reverse operations, and the pressure oil of second oil circuit 52 is opened second Pilot operated check valve 55; Get into the rod chamber of hydraulic jack 6; Simultaneously, first Pilot operated check valve 53 is opened in the second control bypass 58, and oil return is flowed out from the rodless cavity of hydraulic jack 6; Get back to main fuel tank 1 through first oil circuit 54 through first Pilot operated check valve 53 and first pilot operated compound relief valve 51, accomplish the piston rod withdrawal.
The present invention adopts the first control bypass 59 and the second control bypass 58 to control the control oil channel of second Pilot operated check valve 55 and first Pilot operated check valve 53 respectively, implements the to-and-fro motion work of hydraulic jack 6 inner piston rods, has saved selector valve, has simplified control oil channel.
Claims (5)
1. integral minitype electro-hydraulic actuator; It is characterized in that it comprises main fuel tank (1), drop tank (2), motor (3), oil hydraulic pump (4), integrated valve block (5) and hydraulic jack (6); Main fuel tank (1) and drop tank (2) are cylinder-shaped; Integrated valve block (5) is a bar shape, and integrated valve block is provided with control oil channel in (5); Said main fuel tank (1), integrated valve block (5) and drop tank (2) connect and compose a cylinder successively; Oil hydraulic pump (4) connects integrated valve block (5) oil circuit and is located at integrated valve block (5) below; Oil hydraulic pump (4) main shaft is connected with motor (3) output shaft; Drop tank (2) is set in outside oil hydraulic pump (4) and the motor (3) and with integrated valve block (5) and is connected; Said hydraulic jack (6) is located on the integrated valve block (5) and is connected integrated valve block (5) oil circuit; Main fuel tank (1) is set in outside the hydraulic jack (6) and with integrated valve block (5) and is connected;
Be provided with first oil circuit (54) and second oil circuit (52) in the said integrated valve block (5); First oil circuit (54) is provided with first Pilot operated check valve (53); Second oil circuit (52) is provided with second Pilot operated check valve (55); Be provided with the first control bypass (59) between first oil circuit (54) and second Pilot operated check valve (55); Be provided with the second control bypass (58) between second oil circuit (52) and first Pilot operated check valve (53), first oil circuit (54) is connected with first pilot operated compound relief valve (51), and second oil circuit (52) is connected with second pilot operated compound relief valve (57).
2. integral minitype electro-hydraulic actuator according to claim 1 is characterized in that the top of main fuel tank (1) is provided with loam cake (11), and loam cake (11) is provided with piston rod hole (12).
3. integral minitype electro-hydraulic actuator according to claim 1 is characterized in that the bottom of drop tank (2) is provided with bottom (21).
4. integral minitype electro-hydraulic actuator according to claim 1 is characterized in that being provided with the oil circuit that is communicated with between main fuel tank (1) and the drop tank (2).
5. integral minitype electro-hydraulic actuator according to claim 1 is characterized in that motor (3) is connected with electric control box (7), and electric control box (7) is connected with control switch (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102727835A CN102384124A (en) | 2011-09-15 | 2011-09-15 | Integral type minisize electrohydraulic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102727835A CN102384124A (en) | 2011-09-15 | 2011-09-15 | Integral type minisize electrohydraulic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102384124A true CN102384124A (en) | 2012-03-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102727835A Pending CN102384124A (en) | 2011-09-15 | 2011-09-15 | Integral type minisize electrohydraulic actuator |
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| Country | Link |
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| CN (1) | CN102384124A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405225A (en) * | 2014-10-16 | 2015-03-11 | 乔明齐 | Automobile automatic door device micro type hydraulic actuator and control method thereof |
| CN106704303A (en) * | 2017-01-20 | 2017-05-24 | 华中科技大学无锡研究院 | Linear portable electric-hydraulic actuator |
| CN109538549A (en) * | 2018-12-25 | 2019-03-29 | 浙江致腾电气成套设备有限公司 | A kind of intelligent well cover with miniature explosion-proof hydraulic power system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305516Y (en) * | 1997-04-25 | 1999-01-27 | 锡山市东方建材设备厂 | Electrohydraulic push rod |
| CN2419402Y (en) * | 2000-01-03 | 2001-02-14 | 胡达 | Return throttling style electric fluid activator |
| CN2489132Y (en) * | 2001-07-13 | 2002-05-01 | 唐山市高新技术开发区开尔物资置业有限公司 | Electrohydraulic push rod |
| CN202326496U (en) * | 2011-09-15 | 2012-07-11 | 上海当世流体动力控制设备有限公司 | Integral miniature electro-hydraulic actuator |
-
2011
- 2011-09-15 CN CN2011102727835A patent/CN102384124A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305516Y (en) * | 1997-04-25 | 1999-01-27 | 锡山市东方建材设备厂 | Electrohydraulic push rod |
| CN2419402Y (en) * | 2000-01-03 | 2001-02-14 | 胡达 | Return throttling style electric fluid activator |
| CN2489132Y (en) * | 2001-07-13 | 2002-05-01 | 唐山市高新技术开发区开尔物资置业有限公司 | Electrohydraulic push rod |
| CN202326496U (en) * | 2011-09-15 | 2012-07-11 | 上海当世流体动力控制设备有限公司 | Integral miniature electro-hydraulic actuator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405225A (en) * | 2014-10-16 | 2015-03-11 | 乔明齐 | Automobile automatic door device micro type hydraulic actuator and control method thereof |
| CN106704303A (en) * | 2017-01-20 | 2017-05-24 | 华中科技大学无锡研究院 | Linear portable electric-hydraulic actuator |
| CN109538549A (en) * | 2018-12-25 | 2019-03-29 | 浙江致腾电气成套设备有限公司 | A kind of intelligent well cover with miniature explosion-proof hydraulic power system |
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Application publication date: 20120321 |