CN202418098U - Speed and pressure control system of hydraulic cylinder - Google Patents
Speed and pressure control system of hydraulic cylinder Download PDFInfo
- Publication number
- CN202418098U CN202418098U CN2011204962981U CN201120496298U CN202418098U CN 202418098 U CN202418098 U CN 202418098U CN 2011204962981 U CN2011204962981 U CN 2011204962981U CN 201120496298 U CN201120496298 U CN 201120496298U CN 202418098 U CN202418098 U CN 202418098U
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- hydraulic cylinder
- speed
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- control system
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Abstract
A speed and pressure control system of a hydraulic cylinder belongs to the technical field of hydraulic transmission. A piston cavity of a main hydraulic cylinder and a piston cavity of an auxiliary hydraulic cylinder are communicated with each other, and a piston of the auxiliary hydraulic cylinder is controlled by a servo motor through a corresponding mechanical transmission mechanism. The speed and pressure control system of the hydraulic cylinder has the advantages that acting smoothness of the hydraulic cylinder is improved, stroke-setting and micro-displacement are more accurate, and the system is more compact, miniaturized, simple in structure and reliable in control.
Description
Technical field
The utility model relates to hydraulic cylinder speed and control pressurer system, belongs to hydraulic transmission technology field.
Background technique
Oil hydraulic cylinder is a topmost functional part in the Hydraulic Power Transmission System, in different device systems and operational site, and the speed and the pressure that often need oil hydraulic cylinder have regulation.The speed of existing oil hydraulic cylinder and the control of pressure generally are to constitute hydraulic cylinder speed and control pressurer system by electrohydraulic proportional control valve, speed and pressure transducer and other all kinds of common hydraulic element that match with it, realize the speed of oil hydraulic cylinder and the relevant control of pressure.
Along with the continuous progress of science and technology and to the raising of the continuous requirement of improving the quality of products; Speed and pressure to the oil hydraulic cylinder of hydraulic system have also proposed higher requirement; For example: the part upsetting squeeze micro shaping of the pressure bedding-in technology of the isothermal die forging process moulding process that gets up based on the setting-up and development of modern science and technology institute, hydraulic intelligent mechanism hand, large-scale coupling mould, hydraulic tracing control cutting, mm-scale, the control system of aviation aircraft, current continuous " the sheet material multiple spot does not have die forming " new process of development etc.; The new technology of all these, type equipment, new process all require to possess stable action, decide the variation of function technologies such as journey is accurate, microdisplacement as controlled and oil hydraulic cylinder executive component; Simultaneously, also have both the requirement that low-power is exported, constructed small and exquisite and light-weighted compact type.Though the speed of existing oil hydraulic cylinder and control pressurer system can satisfy above-mentioned requirement to a certain extent,, can't satisfy the requirement that performance is further improved; In addition and since existing hydraulic control system generally by separately independently discrete component form, cause the system comparatively huge; Complex structure; Simultaneously, because complex structure, the fault that causes easily is also higher.
Summary of the invention
The purpose of the utility model is: to the speed and the existing above-mentioned scarce limit of control pressurer system of oil hydraulic cylinder in the existing Hydraulic Power Transmission System; The utility model provides a kind of new type hydraulic cylinder speed and control pressurer system; The speed of this kind new type hydraulic cylinder and control pressurer system can further improve the stationarity of oil hydraulic cylinder action; Decide journey accuracy, microdisplacement precision advantage more accurately, can make simultaneously system more compactness, miniaturization, simple in structure, control reliable advantage.
The utility model realizes that the technological scheme that above-mentioned purpose adopted is: link with oil pipe between the piston cavity with the piston cavity of auxiliary hydraulic cylinder and master hydraulic cylinder; Be provided with on the piston of auxiliary hydraulic cylinder and install and fix screw; Be equipped with in the neutral threaded hole of screw that the mode with screw-thread fit is installed together between screw mandrel, leading screw and the screw; An other end of said screw mandrel and the output shaft of speed reducer link fixing; The input shaft of said speed reducer and servo motor shaft link fixing, and the piston cavity of auxiliary hydraulic cylinder links to each other with control valve, and described control valve is any one in Pilot operated check valve, liquid-filling valve, the solenoid electric valve.
The working principle of the utility model is: under the control of main hydraulic control system, the piston rod of master hydraulic cylinder reaches the Position And Velocity of regulation, simultaneously; After also setting up the pressure of regulation in the piston cavity of master hydraulic cylinder, main hydraulic system quits work, under the control of control command signal; Actuating motor is started working, the driven by servomotor speed reducer, and speed reducer drives screw mandrel; Screw mandrel drives screw; Screw drives the piston advances forward of auxiliary hydraulic cylinder, and the pressure oil in the auxiliary hydraulic cylinder is pushed in the piston cavity of master hydraulic cylinder, because actuating motor can be done control arbitrarily to speed through the program and instruction; So; The flow of the pressure of the pressure oil in the master hydraulic cylinder piston cavity, the hydraulic oil of inflow can be controlled arbitrarily, thereby reach speed, pressure, the position of the piston rod of master hydraulic cylinder is accurately controlled arbitrarily.
Beneficial effect: systematic schematic diagram and working principle by the utility model can be found out; The utility model can improve the stationarity of oil hydraulic cylinder action; Decide journey accuracy, microdisplacement precision advantage more accurately, can make simultaneously system more compactness, miniaturization, simple in structure, control reliable advantage.
Description of drawings
Accompanying drawing 1 is the structure principle chart of the utility model;
Shown in Fig. 1: 1, actuating motor; 2, speed reducer; 3, leading screw; 4, screw; 5, auxiliary hydraulic cylinder; 6, master hydraulic cylinder; 7, control valve; 8, HYDRAULIC CONTROL SYSTEM system; 9, fuel reserve tank.
Embodiment
It comprises described hydraulic cylinder speed and control pressurer system: actuating motor 1, speed reducer 2, leading screw 3, screw 4, auxiliary hydraulic cylinder 5, master hydraulic cylinder 6, control valve 7, HYDRAULIC CONTROL SYSTEM system 8, fuel reserve tank 9; Link with oil pipe between the piston cavity of the piston cavity of auxiliary hydraulic cylinder 5 and master hydraulic cylinder 6; Be provided with on the piston of auxiliary hydraulic cylinder 5 and install and fix screw 4; Screw mandrel 3 is housed in the neutral threaded hole of screw 4; An other end of screw mandrel 3 and the output shaft of speed reducer 2 link fixing; 1 of the input shaft of said speed reducer 2 and actuating motor link fixing, and the piston cavity of auxiliary hydraulic cylinder 5 links to each other with control valve 7, and described control valve 7 is any one in Pilot operated check valve, liquid-filling valve, the solenoid electric valve.
Claims (1)
1. hydraulic cylinder speed and control pressurer system; It is characterized in that: link with oil pipe between the piston cavity of the piston cavity of auxiliary hydraulic cylinder (5) and master hydraulic cylinder (6); Be provided with on the piston of auxiliary hydraulic cylinder (5) and install and fix screw (4); Screw mandrel (3) is housed in the neutral threaded hole of screw (4), and an other end of screw mandrel (3) and the output shaft of speed reducer (2) link fixing, and the input shaft of speed reducer (2) and actuating motor (1) axle link fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204962981U CN202418098U (en) | 2011-12-04 | 2011-12-04 | Speed and pressure control system of hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204962981U CN202418098U (en) | 2011-12-04 | 2011-12-04 | Speed and pressure control system of hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418098U true CN202418098U (en) | 2012-09-05 |
Family
ID=46742868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204962981U Expired - Fee Related CN202418098U (en) | 2011-12-04 | 2011-12-04 | Speed and pressure control system of hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418098U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966622A (en) * | 2012-11-14 | 2013-03-13 | 美特斯工业系统（中国）有限公司 | Tester and hydraulic power device thereof |
-
2011
- 2011-12-04 CN CN2011204962981U patent/CN202418098U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966622A (en) * | 2012-11-14 | 2013-03-13 | 美特斯工业系统（中国）有限公司 | Tester and hydraulic power device thereof |
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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: 20120905 Termination date: 20121204 |