CN202266538U - High-frequency response integrated servo oil cylinder - Google Patents
High-frequency response integrated servo oil cylinder Download PDFInfo
- Publication number
- CN202266538U CN202266538U CN2011203157340U CN201120315734U CN202266538U CN 202266538 U CN202266538 U CN 202266538U CN 2011203157340 U CN2011203157340 U CN 2011203157340U CN 201120315734 U CN201120315734 U CN 201120315734U CN 202266538 U CN202266538 U CN 202266538U
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- oil cylinder
- servo
- hydrostatic bearing
- cylinder
- cylinder body
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- Expired - Fee Related
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- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model relates to a high-frequency response integrated servo oil cylinder, which comprises a cylinder body (1), a trunnion (2), a servo valve (3), a hydrostatic bearing (4) and a sensor (5), wherein the servo valve (3) is arranged inside the cylinder body (1), the trunnion (2) is installed at two sides of the cylinder body (1), the cylinder body (1) is supported on the hydrostatic bearing (4), a piston rod (6) of the servo valve (3) adopts a hollow piston rod, and the sensor (5) is arranged on a hollow part of the oil cylinder piston rod (6). Since the oil cylinder, the trunnion, the servo valve, the hydrostatic bearing and the sensor are integrated into a whole to form a structure of an electric-hydraulic servo oil cylinder with high integration degree. The servo oil cylinder can bear high eccentric load force, has advantages of novel design, compact structure, reasonability in assembling, small size and the like, and has wide application prospect. The high-frequency response integrated servo oil cylinder has high integration degree and fast response and can bear large eccentric load.
Description
Technical field
The utility model is a kind of high-frequency respond integration servo oil cylinder, belongs to the renovation technique of servo-cylinder.
Background technique
In the industrial system, many equipments all need power big in modern times, and response is fast, and the high servo-cylinder of precision is as final controlling element, like milling train, vibrating crystallizer, the smelting equipment of Iron And Steel Industry; Test stand, docking mechanism, the undercarriage of simulation such as Aeronautics and Astronautics, automobile attitude control and environment; And pressure forming equipment, heavy machinery and engineering machinery or the like.In commercial production, large-tonnage product all need be transferred in people's hand through transport pathway, in transportation process, can produce vibration unavoidably and causes the inefficacy of product.Therefore, simulate the vibration that various road excitation launch vehicles produce, high-frequency respond integration servo oil cylinder is served as main and crucial role.In addition, various vibration mechines, fatigue testing machine etc. all need be used high-frequency respond integration servo oil cylinder.In addition, existing servo-cylinder is under heavy duty, high speed operation state, and its piston rod can receive moving offset loading force, has a strong impact on work safety stability, even damages, and is difficult to satisfy usage requirement.
Summary of the invention
The purpose of the utility model is to consider the problems referred to above and provides that a kind of dynamic response performance is good, speed of response is fast, reliability is high, bears the high-frequency respond integration servo oil cylinder of big offset loading force.The utility model design is ingenious, convenient and practical.
The technological scheme of the utility model is: the high-frequency respond integration servo oil cylinder of the utility model; Include cylinder body, gudgeon, servovalve, hydrostatic bearing, sensor; Wherein servovalve places in the cylinder body, and gudgeon is installed in the both sides of cylinder body, and cylinder body is bearing on the hydrostatic bearing; The piston rod of servovalve adopts the hollow shape piston rod, and sensor is arranged on the hollow part of oil cylinder piston bar.
The oil pocket of above-mentioned hydrostatic bearing communicates with hydraulic system through flow controller.
Above-mentioned flow controller adopts the annular gap type flow controller.
Above-mentioned flow controller includes the throttling rod that places on the set slide opening of hydrostatic bearing, and throttling rod is connected with the plug screw that can drive its screw-in or back-out.
The working connection and the oil circuit of above-mentioned servo-cylinder directly are processed on the gudgeon.
The utility model is integrated in one by cylinder body, gudgeon, servovalve, hydrostatic bearing, sensor etc. owing to adopting; Form a kind of structure of electro-hydraulic servo oil cylinder of high integration, the servo-cylinder of the utility model can bear high eccentric load power, has modern design; Compact structure; Advantages such as configuration is reasonable, and volume is little have a wide range of applications.The utility model compared with prior art has following advantage:
1) the utility model is taked effectively reliable measure, under the background of high offset loading force work, realizes safe and stable operation.
2) it is closed loop servo-control system that the electric liquid open system that the utility model can will pass by promotes with the open loop ratio control system; Realizing hydraulic system flexibility, intellectuality, giving full play to the effect of aspects such as hydraulic system is exerted oneself greatly, inertia is little, response is fast generation important support, and more adapting to the automation demand at dynamic response performance, speed of response, reliability, aspect such as integrated.
3) the utility model is a kind of electro-hydraulic servo actuating device mechanical, electrical, liquid that integrates, and it will improve the antivibration ability of the machinery of products such as all kinds of electromechanics, instrument, food package, improves the overall dynamics response performance of manufacturing mechanism.
The servo-cylinder of the utility model high-frequency respond integration can be widely used in various simulation experiment systems; The hydraulic system of vibrating table, press machine, connecting bridge and metallurgical equipment or other occasions; Be under the background of electrichydraulic control hi-tech development, promote and research and development highly integrated, response is fast, the critical servo element that bears big offset loading force; The utility model is that a kind of design is ingenious, function admirable, convenient and practical high-frequency respond integration servo oil cylinder.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the A-A sectional drawing among Fig. 1;
Fig. 3 is the B-B sectional drawing among Fig. 1;
Fig. 4 is the structural representation of flow controller.
Embodiment
Embodiment:
The structural representation of the utility model is like Fig. 1,2, shown in 3; Include cylinder body 1, gudgeon 2, servovalve 3, hydrostatic bearing 4, sensor 5; Wherein servovalve 3 places in the cylinder body 1, and gudgeon 2 is installed in the end face of cylinder body 1, and cylinder body 1 is bearing on the hydrostatic bearing 4; In the present embodiment, the piston rod 6 of above-mentioned servovalve 3 adopts the hollow shape piston rod.It has reduced the quality of motion parts above-mentioned hollow shape piston rod 6, has promptly reduced the consumable power of moving element itself, has improved the response performance of servo-cylinder; It has understood the good result of detecting sensor at bag objectively, has guaranteed the accurate operation of automatic control system.The sensor 5 is arranged on the hollow part of the piston rod 6 of servovalve 3.The oil pocket 41 of above-mentioned hydrostatic bearing 4 communicates with hydraulic system through flow controller 7.Parts height such as cylinder body 1, gudgeon 2, servovalve 3, hydrostatic bearing 4, sensor 5 are integrated in one, and form a kind of electro-hydraulic servo oil cylinder of high integration, to reach highi degree of accuracy, and the control requirement of response fast.
In the present embodiment, above-mentioned flow controller 7 adopts the annular gap type flow controller.Above-mentioned flow controller 7 includes the throttling rod 71 that places on the hydrostatic bearing 4 set slide openings, and throttling rod 71 is connected with the plug screw that can drive its screw-in or back-out 8.Above-mentioned annular gap type flow controller 7 designs are on hydrostatic bearing 4; Be prone to processing, level of integration is high, and throttling rod 71 fuses with plug screw 8; It screws in or screws out with the motion of plug screw 8; So easy accessibility uses annular gap type throttling form on the hydrostatic bearing 4, the characteristics that traditional capillary tube or pin flow controller are prone to obstruction, processing and mounting or dismounting difficulty have been overcome.Above-mentioned annular gap type flow controller makes hydrostatic bearing form the oil pocket pressure difference, adjusts the exact position of piston rod better, in technological development, has bigger use value.Above-mentioned hydrostatic bearing 4 can bear high partial load; Piston rod 6 does not produce intermetallic rubbing contact with hydrostatic bearing 4 grades; Annular gap type flow controller 7 makes hydrostatic bearing 4 form the oil pocket pressure difference; Adjust piston rod 6 better and remain on accurate central position, improve the stability of servo-cylinder work, in technological development, have bigger use value.In the present embodiment, the working connection 9 and the oil circuit 10 of above-mentioned servo-cylinder directly are processed on the gudgeon 2.Above-mentioned servo-cylinder active chamber total measurement (volume) (comprising valve, connecting tube etc.) is little, and the natural frequency of system is increased, and its working stability obviously strengthens.And the size and the weight of servo-cylinder reduce greatly, and mechanism is compacter, and it is more reasonable to dispose, and functional reliability has also improved relatively.
The working principle of the utility model is following: working connection and oil circuit are on same axis; Down, fluid gets into from working connection in working order, servovalve 3 input control electric currents; Like sinusoidal signal; Square signal and random signal etc., control flow direction, sensor 5 testing signals in the hollow shape piston rod feed back it in real time.Produce the pressure oil film in the oil circuit and will work to bear high offset loading force; Design hydrostatic bearing 4, annular gap type flow controller 7 in the cylinder body; Make 6 pairs of center lines of piston rod that the reduction with good ability arranged; Make it under frequent switching-over operating mode, be in the high speed steady state of motion all the time, guarantee that fluid flows out from oil circuit safety, accomplishes the whole course of action of servo-cylinder.
Claims (5)
1. high-frequency respond integration servo oil cylinder; It is characterized in that including cylinder body (1), gudgeon (2), servovalve (3), hydrostatic bearing (4), sensor (5); Wherein servovalve (3) places in the cylinder body (1), and gudgeon (2) is installed in the both sides of cylinder body (1), and cylinder body (1) is bearing on the hydrostatic bearing (4); The piston rod (6) of servovalve (3) adopts the hollow shape piston rod, and the sensor (5) is arranged on the hollow part of oil cylinder piston bar (6).
2. high-frequency respond integration servo oil cylinder according to claim 1 is characterized in that the oil pocket (41) of above-mentioned hydrostatic bearing (4) communicates with hydraulic system through flow controller (7).
3. high-frequency respond integration servo oil cylinder according to claim 2 is characterized in that above-mentioned flow controller (7) adopts the annular gap type flow controller.
4. high-frequency respond integration servo oil cylinder according to claim 3; It is characterized in that above-mentioned flow controller (7) includes the throttling rod (71) that places on the set slide opening of hydrostatic bearing (4), and throttling rod (71) is connected with the plug screw that can drive its screw-in or back-out (8).
5. according to each described high-frequency respond integration servo oil cylinder of claim 1 to 4, it is characterized in that the working connection (9) of above-mentioned servo-cylinder and oil circuit (10) directly are processed on the gudgeon (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203157340U CN202266538U (en) | 2011-08-26 | 2011-08-26 | High-frequency response integrated servo oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203157340U CN202266538U (en) | 2011-08-26 | 2011-08-26 | High-frequency response integrated servo oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266538U true CN202266538U (en) | 2012-06-06 |
Family
ID=46157335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203157340U Expired - Fee Related CN202266538U (en) | 2011-08-26 | 2011-08-26 | High-frequency response integrated servo oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266538U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720718A (en) * | 2012-07-04 | 2012-10-10 | 湖南大学 | Rodless internally-mounted integrated broadband dynamic cylinder |
| CN102721428A (en) * | 2012-07-04 | 2012-10-10 | 湖南众航科技有限公司 | Speed-displacement sensor |
| CN104632755A (en) * | 2014-12-31 | 2015-05-20 | 太原科技大学 | Anti-unbalance-loading overloading servo hydraulic cylinder |
-
2011
- 2011-08-26 CN CN2011203157340U patent/CN202266538U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720718A (en) * | 2012-07-04 | 2012-10-10 | 湖南大学 | Rodless internally-mounted integrated broadband dynamic cylinder |
| CN102721428A (en) * | 2012-07-04 | 2012-10-10 | 湖南众航科技有限公司 | Speed-displacement sensor |
| CN102720718B (en) * | 2012-07-04 | 2015-02-18 | 湖南大学 | Rodless internally-mounted integrated broadband dynamic cylinder |
| CN102721428B (en) * | 2012-07-04 | 2015-06-10 | 湖南众航科技有限公司 | Speed-displacement sensor |
| CN104632755A (en) * | 2014-12-31 | 2015-05-20 | 太原科技大学 | Anti-unbalance-loading overloading servo hydraulic cylinder |
| CN104632755B (en) * | 2014-12-31 | 2016-09-07 | 太原科技大学 | A kind of heavily loaded servo hydraulic cylinder of anti-bias load |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20150826 |
|
| EXPY | Termination of patent right or utility model |