CN101745995A - Variable pressure hydraulic spacing adjusting device - Google Patents
Variable pressure hydraulic spacing adjusting device Download PDFInfo
- Publication number
- CN101745995A CN101745995A CN200910248946A CN200910248946A CN101745995A CN 101745995 A CN101745995 A CN 101745995A CN 200910248946 A CN200910248946 A CN 200910248946A CN 200910248946 A CN200910248946 A CN 200910248946A CN 101745995 A CN101745995 A CN 101745995A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- spacing adjusting
- adjusting device
- variable pressure
- pressure hydraulic
- Prior art date
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a variable pressure hydraulic spacing adjusting device which comprises a connecting sleeve, a stand, a connecting plate and a hydraulic spacing adjusting control system, wherein the hydraulic spacing adjusting control system comprises two hydraulic cylinders, a displacement sensor, a proportion integration differentiation (PID) controller, a pressure overflow valve and an oil filter. The invention replaces the mechanical drive spacing adjusting device by using the hydraulic cylinders, and improves the roll spacing control precision and the safe protection pressure precision of an open mill spacing setting system through the drive and the control of the hydraulic systems.
Description
Technical field
The present invention relates to adjust in a kind of mill the roll-setting gear of roll gap size, relate in particular to a kind of variable pressure hydraulic spacing adjusting device.
Background technology
Mill is one of the most frequently used basic equipment of rubber, the processing of plastic industry goods; the roll-setting gear of mill is the spacing that is used for adjusting mill two rollers; make mill under different roller spacings, carry out work; and form the safety guard of mill jointly with safety device, prevent to cause the damage of key components and parts such as roller, frame, bearing because of the roller overload.
What original mill roll-setting gear adopted is mechanical combining structures such as motor, reductor, worm gear-endless screw, leading screw-nut, and the grey cast-iron safety disc is then adopted in safeguard protection, and this structure is the problem of the following several respects of ubiquity in use:
1. machine driving inertia is bigger, roll spacing is in course of adjustment is difficult to accurate location.
2. owing to the motor output speed difference is arranged, and the existence in machine driving gap, make the synchronism of bilateral roll spacing when adjusting of roller relatively poor.
3. because existence big gap in the coupling part of roll-setting gear and safety device can't be eliminated, cause the idle stroke that has when forward and back is changed in the roll adjustment process about 3mm, on dial, do not have demonstration, make display scale and actual roll spacing have very large deviation.
4. the whole scope of roll adjustment adjustable-speed is little, does not meet the CE safety standard, and influence is to carrying out the sale of CE Standard User.
5. the safety disc of grey cast-iron protection force value belongs to discrete values, and deviation range can not realize the accurate protection of equipment about ± 100kN usually.
6. after the safety disc fragmentation, the replacing time is longer, and working strength is bigger, influences the continuity of work.
In view of this special proposition the present invention.
Summary of the invention
At problems of the prior art, the object of the present invention is to provide a kind of roll spacing control accuracy of mill roll adjustment system and variable pressure hydraulic spacing adjusting device of safeguard protection pressure precision of improving.
The technical scheme that the present invention is adopted for achieving the above object is: a kind of variable pressure hydraulic spacing adjusting device comprises adapter sleeve, frame, connecting plate and hydraulic distance-regulating control system.
Described hydraulic distance-regulating control system is made up of two hydraulic cylinders, displacement transducer, PID controller, automatically controlled proportional reversing valve, Pressure relief valve and oil filter.
Two hydraulic cylinder actions of described automatically controlled proportional reversing valve control synchronous operation.
Described displacement transducer is located at described hydraulic cylinder piston rod place, measures the load variations value of hydraulic cylinder piston rod.
Described PID controller links to each other with displacement transducer, and displacement transducer measured value and setting value are compared, and comparative result is sent control signal pass to automatically controlled proportional reversing valve.
The present invention replaces the machine driving roll-setting gear by hydraulic cylinder; and driving and control by hydraulic system; improve the roll spacing control accuracy and the safeguard protection pressure precision of mill roll adjustment system; during work; variation according to load load; feed back by the displacement transducer position signalling; change the hydraulic cylinder moving direction; realize that band carries the variation of oil pocket pressure so that keep balance with load, realize the automatic control of roll spacing, improve the functional reliability of mill; assurance work continuity; raise the efficiency and product quality, reduce operator's labour intensity, satisfy of the every requirement of European CE safety standard mill roll adjustment system
The invention has the beneficial effects as follows:
1. the pressure by the hydraulic cylinder inner chamber changes with load variations, realizes the steady operation process.
2. hydraulic cylinder is realized the adjustment of roller spacing, and the use displacement transducer carries out the detection of roll spacing and moves forward and backward by the comparison control hydraulic cylinder with setting value.
3. set safeguard protection load by the safe pressure overflow valve, realize the accurate control of safeguard protection, cancellation machine security sheet.
4. because the cancellation of machine security sheet, avoided the work of heavy replacing safety disc, guaranteed the work continuity of mill.
5. regulate by ratio, can realize the synchronous adjustment of roll spacing and the independent adjustment of single cylinder each hydraulic cylinder flow.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is a variable pressure hydraulic spacing adjusting device structural representation of the present invention;
Fig. 2 is variable pressure hydraulic spacing adjusting device hydraulic distance-regulating control system figure of the present invention.
The specific embodiment
As depicted in figs. 1 and 2, variable pressure hydraulic spacing adjusting device comprises adapter sleeve 1, frame 2, connecting plate 3, hydraulic cylinder 4, displacement transducer 5, PID controller 6, automatically controlled proportional reversing valve 9, piezoelectricity control proportional reversing valve 9, Pressure relief valve 8 and the oil filter 7 common hydraulic distance-regulating control systems of forming this variable pressure hydraulic spacing adjusting device, from Fig. 2, can see in the hydraulic distance-regulating control system schematic diagram, by control to automatically controlled proportional reversing valve 9, system can be achieved as follows action: the hydraulic cylinder piston rod F.F., rewind down, slow-motion, slowly move back, pressurize is static, the synchronization action of two hydraulic cylinders 4 is realized by the proportion control of control proportional reversing valve 9, piston rod can carry out soon as required, slow two grades of speed are set, and according to the numerical value of setting, regulate the also flow of controlled pressure oil by control proportional reversing valve 9, realize two grades of speed governing, after adjusting to normal operating position, control proportional reversing valve 9 stops action, keep system pressure by Pressure relief valve 8, machine can run well, 7 pairs of system oil-ways of oil filter filter, the cleaning of maintenance system, unimpeded, prevent system oil-way and block, make system be in optimum Working.
Be provided with displacement transducer 5 at the hydraulic cylinder piston rod place, when load increases or reduces, hydraulic cylinder piston can produce under about load mobile, the numerical value that displacement transducer 5 will be measured in good time feeds back to PID controller 6, PID controller 6 compares measured value and setting value, if deviation is wherein arranged, then send control signal and pass to automatically controlled proportional reversing valve 9, regulate the flow of self by it, stretching of control piston bar, guarantee that measured value is identical with setting value, circulation and so forth makes system keep normal operating conditions.
Claims (5)
1. a variable pressure hydraulic spacing adjusting device is characterized in that: comprise adapter sleeve, frame, connecting plate and hydraulic distance-regulating control system.
2. a kind of variable pressure hydraulic spacing adjusting device according to claim 1 is characterized in that: described hydraulic distance-regulating control system is made up of two hydraulic cylinders, displacement transducer, PID controller, automatically controlled proportional reversing valve, Pressure relief valve and oil filter.
3. a kind of variable pressure hydraulic spacing adjusting device according to claim 2 is characterized in that: two hydraulic cylinder actions of described automatically controlled proportional reversing valve control synchronous operation.
4. a kind of variable pressure hydraulic spacing adjusting device according to claim 2 is characterized in that: described displacement transducer is located at described hydraulic cylinder piston rod place, measures the load variations value of hydraulic cylinder piston rod.
5. according to claim 2 or 4 described a kind of variable pressure hydraulic spacing adjusting devices, it is characterized in that: described PID controller links to each other with displacement transducer, displacement transducer measured value and setting value are compared, comparative result is sent control signal pass to automatically controlled proportional reversing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910248946A CN101745995A (en) | 2009-12-30 | 2009-12-30 | Variable pressure hydraulic spacing adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910248946A CN101745995A (en) | 2009-12-30 | 2009-12-30 | Variable pressure hydraulic spacing adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101745995A true CN101745995A (en) | 2010-06-23 |
Family
ID=42473921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910248946A Pending CN101745995A (en) | 2009-12-30 | 2009-12-30 | Variable pressure hydraulic spacing adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101745995A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014059719A1 (en) * | 2012-10-16 | 2014-04-24 | 河南新艾卡橡胶工业有限公司 | Refining machine and space adjusting device therefor |
| CN109107660A (en) * | 2018-07-06 | 2019-01-01 | 甘肃省机械科学研究院有限责任公司 | A kind of adjust automatically seed damage roller clearance control system and method |
-
2009
- 2009-12-30 CN CN200910248946A patent/CN101745995A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014059719A1 (en) * | 2012-10-16 | 2014-04-24 | 河南新艾卡橡胶工业有限公司 | Refining machine and space adjusting device therefor |
| CN109107660A (en) * | 2018-07-06 | 2019-01-01 | 甘肃省机械科学研究院有限责任公司 | A kind of adjust automatically seed damage roller clearance control system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105797809B (en) | The device and method that a kind of crusher's rollers gap adaptively adjusts | |
| US3936258A (en) | Calender | |
| CN101733287A (en) | Device for adjusting and positioning horizontal offset for working rollers of rolling mill | |
| CN108995283A (en) | The fine-adjustment mechanism of press machine bottom dead centre | |
| CN107900110A (en) | A kind of think gauge hot-strip batches control method | |
| CN103949302B (en) | Single-transmission roller press | |
| US2575590A (en) | Calender roll pressure control apparatus | |
| CN110788165B (en) | Rapid calibration control system and control method for roll gap of seven-roll straightener | |
| CN101745995A (en) | Variable pressure hydraulic spacing adjusting device | |
| CN202290768U (en) | Full-hydraulic screwdown servo control apparatus | |
| CN201941099U (en) | Electric control system of constant-pressure type hydraulic spacing regulating device | |
| CN203342841U (en) | Multistage roller press with metered feeding function | |
| CN101607429A (en) | A kind of two-roll calendar that interchangeable sleeve is installed | |
| CN210907520U (en) | Steel plate rolling machine | |
| CN210646567U (en) | Double-geared roller crusher with movable toothed roller operation monitoring device | |
| CN201565467U (en) | Rolling mill working roll horizontal offset regulating and positioning device | |
| CN102114675B (en) | Electrical control system of constant pressure-type hydraulic pitch-adjusting device | |
| CN203417714U (en) | Feed metering roller press with function of adjusting friction force | |
| CN205654624U (en) | Breaker clearning between rolls clearance adjustment system | |
| CN204585681U (en) | Rubber calender hydraulic distance-regulating device | |
| KR20110112508A (en) | Slide of hydraulic press weight control apparatus by speed, and its control method | |
| CN210456842U (en) | Film feeding device on tablecloth production line | |
| CN101797587A (en) | Hydraulic pressure balance device of twenty-roller steel plate cold rolling mill transmission roller and control method | |
| CN203830060U (en) | Single-transmission roller press | |
| CN210500916U (en) | Precise open mill based on hydraulic distance adjustment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100623 |