CN101382157A - Electrohydraulic mixed power cylinder - Google Patents
Electrohydraulic mixed power cylinder Download PDFInfo
- Publication number
- CN101382157A CN101382157A CNA2007100127676A CN200710012767A CN101382157A CN 101382157 A CN101382157 A CN 101382157A CN A2007100127676 A CNA2007100127676 A CN A2007100127676A CN 200710012767 A CN200710012767 A CN 200710012767A CN 101382157 A CN101382157 A CN 101382157A
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- China
- Prior art keywords
- oil
- hydraulic cylinder
- cylinder
- check valve
- metering pump
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- 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.)
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Abstract
The invention provides an electric-hydraulic mixed power cylinder, belonging to the field of electromechanical technology; the oil cylinder comprises a servo motor, a bidirectional constant rate pump, a hydraulic control check valve, a sensor, a hydraulic cylinder and an oil tank, wherein, the servo motor is connected with the bidirectional constant rate pump by a coupler; the bidirectional constant rate pump is connected with two chambers of the hydraulic cylinder; the oil tank is communicated with the hydraulic cylinder oil passage by the hydraulic control check valve; the sensor is arranged on the hydraulic cylinder; the oil cylinder is characterized in that: the oil tank is a concave structure component provided with hollow chambers where oil is arranged; a concave trough of the concave structure component is internally provided with the coupler which is used for connecting the servo motor and the bidirectional constant rate pump. The oil cylinder has simple mechanical structure, integrates an installation part of the servo motor, an installation part of the constant rate pump, an installation part of the hydraulic control check valve and the oil tank into one part, has compact structure, and overcomes the shortage that each part in the prior art needs an installation part for fixing; owing to the compact and simple structure, the oil cylinder has low manufacture cost, small mass, small space occupation and convenient transportation.
Description
Technical field
The invention belongs to the mechanical ﹠ electrical technology field, particularly relate to a kind of electrohydraulic mixed power cylinder.
Background technique
Existing electrohydraulic mixed power cylinder mainly is made up of servomotor, two-way metering pump, Pilot operated check valve, displacement transducer, pressure transducer and oil hydraulic cylinder, pressure transducer is installed on the oil cylinder, and other each parts all need an assembling set to be fixed.Like this entire equipment take up room big, quality is big, cost is high, complicated in mechanical structure.
Summary of the invention
For solving the deficiency of above-mentioned existing equipment, the purpose of this invention is to provide that a kind of mechanical structure is simple, quality is little, the electrohydraulic mixed power cylinder little, that cost is low takes up room.
To achieve these goals, technological scheme of the present invention is as follows:
The present invention includes servomotor, two-way metering pump, Pilot operated check valve, sensor, oil hydraulic cylinder and fuel tank, wherein servomotor links to each other by coupling with two-way metering pump, two-way metering pump is connected with two chambeies of oil hydraulic cylinder, fuel tank communicates with the oil hydraulic cylinder oil circuit through Pilot operated check valve, sensor is installed on the oil hydraulic cylinder, this fuel tank is the concave structure assembly with hollow cavity, hollow cavity is contained oil, is equipped with the coupling that is used to connect servomotor and two-way metering pump in the groove of concave structure assembly.
Perforate communicates with hollow cavity and is connected with Pilot operated check valve on the concave structure component walls of the present invention; In the described concave structure assembly ccontaining coupling two ends be separately installed with servomotor and two-way metering pump; Described concave structure assembly is U type, a few font or H type; Described oil hydraulic cylinder and fuel tank are installed on the substrate respectively.
The present invention has following advantage:
Mechanical structure of the present invention is simple.Described servomotor, two-way metering pump mix installation by a kind of matrix (as U type, a few font or H type) fuel tank assembly with cavity of design voluntarily, the assembling set of servomotor, the assembling set of metering pump, the assembling set and the fuel tank of Pilot operated check valve are integrated into a part, compact structure has overcome the deficiency that each parts all needs an assembling set to be fixed in the prior art.Because so compact structure, simple is low cost of manufacture of the present invention; Quality is little, and it is little to take up room, convenient transportation.
Description of drawings
Fig. 1 is a structure principle chart of the present invention.
Fig. 2 is a broken section structural representation of the present invention.
Fig. 3 is the plan view of Fig. 2.
Embodiment
Below in conjunction with drawings and Examples the present invention is done detailed description:
Embodiment 1:
This routine structure such as Fig. 2, shown in Figure 3, comprise servomotor 1, two-way metering pump 2, Pilot operated check valve 3, displacement transducer 4, pressure transducer 6, oil hydraulic cylinder 5 and fuel tank 7, wherein servomotor 1 links to each other by coupling 8 with two-way metering pump 2, the two ends of two-way metering pump 2 are connected with two chambeies of oil hydraulic cylinder 5 respectively, displacement transducer 4 and pressure transducer 6 are installed in respectively on the oil hydraulic cylinder 5, be used for extracting displacement, pressure signal, as shown in Figure 1; This fuel tank 7 is for having the U type construction package of hollow cavity, but hollow cavity oil storage, doing fuel tank uses, be equipped with the coupling 8 that is used to connect servomotor 1 and two-way metering pump 2 in the groove of U type construction package, the two side of U type construction package does not communicate with hollow cavity, as shown in Figure 2, exterior edge face, corresponding coupling place has tapped hole on U type construction package two side, be used for installing two-way metering pump 2 and servomotor 1 respectively, side perforate at U type construction package diapire communicates with hollow cavity, and be connected with two filler openings of Pilot operated check valve 3 respectively, as Fig. 3, shown in Figure 1; Two oil outlets of Pilot operated check valve 3 communicate with two chambeies of oil hydraulic cylinder 5 by pipeline respectively, and the return opening of Pilot operated check valve connects with the pipeline that is connected 5 liang of chambeies of oil hydraulic cylinder respectively, as shown in Figure 1.Oil hydraulic cylinder 5 and fuel tank 7 are installed on the substrate respectively.
This routine working principle is as follows, as shown in Figure 1: by changing the rotating speed of servomotor 1, the output flow of the metering pump 2 that control can two-way rotation, metering pump 2 directly drives oil hydraulic cylinder 5.By changing the forward and reverse running and the output flow of controlling clockwise and anticlockwise, speed and running time two-way metering pump 2 of servomotor 1, thus forward and reverse, the speed of control oil hydraulic cylinder 5 and position.At work, the pressure difference that is produced by 5 liang of chambeies of oil hydraulic cylinder is controlled the forward and reverse of two Pilot operated check valves and is opened, thereby plays the effect that replenishes fluid and oil return, and displacement transducer 4 and two pressure transducers 6 are system's detection devices when carrying out servo feedback control.
This routine overall structure is identical with embodiment 1, different is that this fuel tank 7 is for having a few font structure assemblies of hollow cavity, but the hollow cavity oil storage, do fuel tank and use, be equipped with the coupling 8 that is used to connect servomotor 1 and two-way metering pump 2 in the groove of a few font structure assemblies, the two side of a few font structure assemblies does not communicate with hollow cavity, and corresponding coupling place is equipped with two-way metering pump 2 and servomotor 1 respectively on the two side, as shown in Figure 2, perforate communicates with hollow cavity on a few font structure assembly diapires.Oil hydraulic cylinder 5 and fuel tank 7 are installed in respectively on the used machinery equipment.
Its working principle is identical with embodiment 1, as shown in Figure 1.
This routine overall structure is identical with embodiment 1, different is that this fuel tank 7 is for having the H type construction package of hollow cavity, but the hollow cavity oil storage, do fuel tank and use, be equipped with the coupling 8 that is used to connect servomotor 1 and two-way metering pump 2 in the groove of H type construction package, the two side of H type construction package does not communicate with hollow cavity, and corresponding coupling place is equipped with two-way metering pump 2 and servomotor 1 respectively on the two side, as shown in Figure 2, perforate communicates with its hollow cavity on H type construction package intermediate connecting wall.Its working principle is identical with enforcement 1, as shown in Figure 1.
Claims (5)
1, a kind of electrohydraulic mixed power cylinder, comprise servomotor, two-way metering pump, Pilot operated check valve, sensor, oil hydraulic cylinder and fuel tank, wherein servomotor links to each other by coupling with two-way metering pump, two-way metering pump is connected with two chambeies of oil hydraulic cylinder, fuel tank communicates with the oil hydraulic cylinder oil circuit through Pilot operated check valve, sensor is installed on the oil hydraulic cylinder, it is characterized in that this fuel tank is the concave structure assembly with hollow cavity, hollow cavity is contained oil, is equipped with the coupling that is used to connect servomotor and two-way metering pump in the groove of concave structure assembly.
2, electrohydraulic mixed power cylinder as claimed in claim 1 is characterized in that on the described concave structure component walls that perforate communicates with hollow cavity and is connected with Pilot operated check valve.
3, electrohydraulic mixed power cylinder as claimed in claim 1 or 2, it is characterized in that in the described concave structure assembly ccontaining coupling two ends be separately installed with servomotor and two-way metering pump.
4, electrohydraulic mixed power cylinder as claimed in claim 1 or 2 is characterized in that described concave structure assembly is U type, a few font or H type.
5, electrohydraulic mixed power cylinder as claimed in claim 1 is characterized in that described oil hydraulic cylinder and fuel tank are installed on the substrate respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100127676A CN101382157A (en) | 2007-09-07 | 2007-09-07 | Electrohydraulic mixed power cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100127676A CN101382157A (en) | 2007-09-07 | 2007-09-07 | Electrohydraulic mixed power cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101382157A true CN101382157A (en) | 2009-03-11 |
Family
ID=40462155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100127676A Pending CN101382157A (en) | 2007-09-07 | 2007-09-07 | Electrohydraulic mixed power cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101382157A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472301A (en) * | 2009-07-29 | 2012-05-23 | 格雷索明尼苏达有限公司 | Hydraulic power module |
| CN102913510A (en) * | 2012-11-06 | 2013-02-06 | 昆山北极光电子科技有限公司 | One-piece hydraulic linear driving device |
| CN103264521A (en) * | 2013-05-22 | 2013-08-28 | 东北大学 | Integrated type energy-saving and environment-friendly hydraulic servo system |
| CN101776099B (en) * | 2009-12-31 | 2013-09-11 | 佛山市禅城区永恒液压机械有限公司 | High integration servo oil cylinder |
-
2007
- 2007-09-07 CN CNA2007100127676A patent/CN101382157A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472301A (en) * | 2009-07-29 | 2012-05-23 | 格雷索明尼苏达有限公司 | Hydraulic power module |
| CN102472301B (en) * | 2009-07-29 | 2015-12-16 | 格雷索明尼苏达有限公司 | Hydraulic power pack |
| CN101776099B (en) * | 2009-12-31 | 2013-09-11 | 佛山市禅城区永恒液压机械有限公司 | High integration servo oil cylinder |
| CN102913510A (en) * | 2012-11-06 | 2013-02-06 | 昆山北极光电子科技有限公司 | One-piece hydraulic linear driving device |
| 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 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090311 |