CN203809378U - Hydraulic adjustment device for side supporting rolls of cluster mill - Google Patents
Hydraulic adjustment device for side supporting rolls of cluster mill Download PDFInfo
- Publication number
- CN203809378U CN203809378U CN201420255699.1U CN201420255699U CN203809378U CN 203809378 U CN203809378 U CN 203809378U CN 201420255699 U CN201420255699 U CN 201420255699U CN 203809378 U CN203809378 U CN 203809378U
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- CN
- China
- Prior art keywords
- oil
- servovalve
- thruster cylinder
- roll
- side thrust
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- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic adjustment device for side supporting rolls of a cluster mill. The hydraulic adjustment device comprises a plurality of servo valves parallelly connected to an oil way of an oil tank, the servo valves are independently connected with side thrust cylinders respectively, an oil inlet end of each servo valve is connected with the oil way of the oil tank to form an oil supply way, an oil outlet end of each servo valve is connected with the corresponding side thrust cylinder to form an execution oil way, and each execution oil way is provided with a pressure sensor used for sensing pressure variation of the corresponding side thrust cylinder and further provided with an electromagnetic ball valve capable of opening or cutting off the corresponding execution oil way; when each execution oil way is open, the corresponding side thrust cylinder is communicated with the corresponding servo valve to enable the side thrust cylinder to be in an adjusted state; when each execution oil way is cut off, the corresponding side thrust cylinder is disconnected with the corresponding servo valve to enable the side thrust cylinder to be in a locked state. The hydraulic adjustment device for the side supporting rolls of the cluster mill has the advantages that the side thrust cylinders in preset standard states can be reliably locked, and accordingly side supporting roll positioning and supporting capability of the side thrust cylinders can be improved.
Description
Technical field
The utility model is specifically related to a kind of multi-roll mill side back-up roll and adjusts hydraulic pressure installation.
Background technique
Multi-roll mill comprises upper and lower roll system, and upper and lower roll system respectively comprises a work roll and is positioned at one or more layers back-up roll in outside.The rolling load that back-up roll work roll when bearing work transmits for supporting work roll to reduce its deflection deformation, to improve the rolling accuracy of rolled piece.Usually, in the same layer back-up roll comprising more than two back-up rolls, the back-up roll that is positioned at inner side has identical diameter with the side back-up roll that is positioned at outside, and the power that the side back-up roll outside the power that the back-up roll that is arranged in inner side bears is positioned at much smaller than same layer back-up roll bears, correspondingly, the side back-up roll in outside is more easily subject to the reaction force of work roll transmission and is offset default standard state.In practice, normally offset the reaction force of work roll transmission with the reliable location of guarantee side back-up roll at the other thruster cylinder that arranges of side back-up roll, therefore, the locking and positioning function of thruster cylinder offside back-up roll will directly affect the rolling accuracy of work roll to rolled piece, the lock ability that how to improve thruster cylinder makes side back-up roll can remain on default standard state, and the adjustment precision of raising thruster cylinder is the technical task that those skilled in the art need to update.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of side back-up roll to adjust hydraulic pressure installation for above-mentioned prior art, can strengthen further the lock ability of thruster cylinder, and it is fast to have response, and highly sensitive, operation is advantage accurately.
The technical scheme in the invention for solving the above technical problem is: a kind of multi-roll mill side back-up roll is adjusted hydraulic pressure installation, comprise multiple servovalves that are connected in parallel on tank oiling channel oil, described servovalve is connected with each thruster cylinder respectively independently, the oil inlet end of servovalve is connected with tank oiling channel oil and forms oil feeding line, the oil outlet end of servovalve be connected with thruster cylinder and form carry out oil circuit, on described execution oil circuit, be provided with the pressure transducer that induction thruster cylinder pressure changes, it is characterized in that: on this execution oil circuit, be also provided with energy conducting or cut off the Solenoid ball valve of carrying out oil circuit, in the situation that carrying out oil circuit conducting, thruster cylinder be communicated with servovalve and make thruster cylinder in regulate state, carrying out in oil circuit cut situation, thruster cylinder disconnects with servovalve and makes the state of thruster cylinder in locking.
Preferably, on described tank oiling channel oil, accumulator is installed, to servovalve fuel feeding parallel with one another, can provides stable pressure oil by accumulator for servovalve.Or on the oil feeding line of each servovalve, dispose respectively independently accumulator, not only for each servovalve provides stable pressure oil, and avoided the phase mutual interference between each servovalve, improved the homework precision of each servovalve.
In order to improve further the response sensitivity of servovalve, on described thruster cylinder, be provided with the displacement transducer of induction thruster cylinder change in displacement.Displacement transducer on thruster cylinder is connected with outside PLC control system, and PLC control system is connected with Solenoid ball valve; Pressure transducer is also connected with outside PLC control system with servovalve in addition.Like this, displacement transducer and pressure transducer can be responded to the slight change of convexity cylinder simultaneously, and induced signal is sent to rapidly to PLC control system, carry out oil circuit by the conducting of PLC control system control Solenoid ball valve, then, PLC control system is sent execution instruction to servovalve again, remains on the standard state of setting to regulate thruster cylinder to make it.
Preferably, in order to improve the speed of response of servovalve, described Solenoid ball valve is the oil outlet end that is connected to servovalve by screw-in cartridge valve, thereby shorten the length of pipeline road, make Solenoid ball valve, servovalve Highgrade integration, reduce the volume of valve body, be conducive to reduce the impact of tubing length on servovalve speed of response.
More reasonably, on described tank oiling channel oil, pressure measuring tie-in is installed, so that the pressure condition of operating personnel's Real-Time Monitoring tank oiling channel oil, the normal operation of assurance device.
Compared with prior art, the utility model has the advantage of: the Solenoid ball valve that oil circuit control break-make is set on the execution oil circuit between servovalve and thruster cylinder, at thruster cylinder under default standard state, cut off execution oil circuit and thruster cylinder can reliably be locked, improved the positioning support ability of thruster cylinder offside back-up roll.In addition, the displacement transducer being arranged on thruster cylinder has strengthened the sensitivity of servovalve further, and is arranged on the accumulator on tank oiling channel oil, can stable pressure oil is provided and the homework precision of hydraulic pressure installation is improved to servovalve.
Brief description of the drawings
Fig. 1 is the local annexation figure of hydraulic pressure installation in the utility model embodiment;
Fig. 2 is the integrated connection graph of a relation of hydraulic pressure installation in the present embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Figure 1, 2, multi-roll mill side back-up roll in the present embodiment adjust hydraulic pressure installation integrated eight groups of thruster cylinder control valve groups, these eight groups of control valve groups are connected on tank oiling channel oil parallel with one another, and independently act on respectively the thruster cylinder connecting separately.
Above-mentioned hydraulic pressure installation comprises eight servovalves 1 that are connected in parallel on tank oiling channel oil, and servovalve 1 is connected with each thruster cylinder 2 respectively independently.The oil inlet end of servovalve 1 is connected with tank oiling channel oil and forms oil feeding line, the oil outlet end of servovalve 1 is connected with thruster cylinder 2 and forms execution oil circuit, carry out the pressure transducer 3 that is provided with the variation of induction thruster cylinder pressure on oil circuit, pressure transducer 3 has two, is arranged on respectively on the oil-feed oil circuit and oil return circuit of carrying out oil circuit; In addition, on thruster cylinder 2, be provided with the displacement transducer 4 of induction thruster cylinder change in displacement, monitor the slight change of thruster cylinder 2 by pressure transducer 3 and displacement transducer 4 simultaneously, and induced signal is sent to rapidly to PLC control system to improve the induction sensitivity of system.As improvements of the present invention, on this execution oil circuit, be also provided with conducting or cut off the Solenoid ball valve 5 of carrying out oil circuit, and Solenoid ball valve 5 is the oil outlet ends that are connected to servovalve 1 by screw thread grafting valve, Solenoid ball valve 5 has two, be arranged on respectively on the oil-feed oil circuit and oil return circuit of carrying out oil circuit, and carry out oil circuit in the situation that in Solenoid ball valve 5 conductings, thruster cylinder 2 is communicated with servovalve 1 and makes the state of thruster cylinder 2 in adjusting; Cut off carry out oil circuit in the situation that at Solenoid ball valve 5, thruster cylinder 2 disconnects with servovalve 1 and makes the state of thruster cylinder 2 in locking.
When operation, by the state of changing of pressure transducer 3 and displacement transducer 4 Real-Time Monitoring thruster cylinders 2, and transmit signal to PLC control system, PLC control system is according to signal feed back control Solenoid ball valve 5 conductings execution oil circuits, send execution instruction to servovalve 1 simultaneously, control servovalve 1 and regulate thruster cylinder 2 to make it to remain on default standard state, control again afterwards Solenoid ball valve 5 and cut off execution oil circuit reliably to lock thruster cylinder 2.
In order to improve the homework precision of servovalve 1, on tank oiling channel oil, also have additional accumulator 6, directly provide stable hydraulic oil to each servovalve 1 by this accumulator 6.In the present embodiment, pressure measuring tie-in 7 is also installed on tank oiling channel oil, pressure measuring tie-in 7 has two, be arranged on respectively on the in-line and return line of tank oiling channel oil, and with the pressure condition of convenient working personnel Real-Time Monitoring tank oiling channel oil, the normal operation of assurance device.
The side back-up roll of said structure is adjusted hydraulic pressure installation, under default standard state, can make thruster cylinder reliably lock, thereby improved the positioning support ability of thruster cylinder offside back-up roll at thruster cylinder.
Claims (6)
1. a multi-roll mill side back-up roll is adjusted hydraulic pressure installation, comprise multiple servovalves that are connected in parallel on tank oiling channel oil, described servovalve is connected with each thruster cylinder respectively independently, the oil inlet end of servovalve is connected with tank oiling channel oil and forms oil feeding line, the oil outlet end of servovalve be connected with thruster cylinder and form carry out oil circuit, on described execution oil circuit, be provided with the pressure transducer that induction thruster cylinder pressure changes, it is characterized in that: on this execution oil circuit, be also provided with energy conducting or cut off the Solenoid ball valve of carrying out oil circuit, in the situation that carrying out oil circuit conducting, thruster cylinder be communicated with servovalve and make thruster cylinder in regulate state, carrying out in oil circuit cut situation, thruster cylinder disconnects with servovalve and makes the state of thruster cylinder in locking.
2. multi-roll mill side back-up roll according to claim 1 is adjusted hydraulic pressure installation, it is characterized in that: on described tank oiling channel oil, accumulator is installed, or disposes respectively independently accumulator on the oil feeding line of each servovalve.
3. multi-roll mill side back-up roll according to claim 1 and 2 is adjusted hydraulic pressure installation, it is characterized in that: the displacement transducer that is provided with induction thruster cylinder change in displacement on described thruster cylinder.
4. multi-roll mill side back-up roll according to claim 3 is adjusted hydraulic pressure installation, it is characterized in that: the displacement transducer on thruster cylinder is connected with outside PLC control system, and PLC control system is connected with Solenoid ball valve; Pressure transducer is also connected with outside PLC control system with servovalve in addition.
5. multi-roll mill side back-up roll according to claim 1 and 2 is adjusted hydraulic pressure installation, it is characterized in that: described Solenoid ball valve is the oil outlet end that is connected to servovalve by screw-in cartridge valve.
6. multi-roll mill side back-up roll according to claim 1 and 2 is adjusted hydraulic pressure installation, it is characterized in that: on described tank oiling channel oil, pressure measuring tie-in is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255699.1U CN203809378U (en) | 2014-05-19 | 2014-05-19 | Hydraulic adjustment device for side supporting rolls of cluster mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255699.1U CN203809378U (en) | 2014-05-19 | 2014-05-19 | Hydraulic adjustment device for side supporting rolls of cluster mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809378U true CN203809378U (en) | 2014-09-03 |
Family
ID=51448135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420255699.1U Expired - Fee Related CN203809378U (en) | 2014-05-19 | 2014-05-19 | Hydraulic adjustment device for side supporting rolls of cluster mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181502A (en) * | 2019-04-19 | 2019-08-30 | 武汉智仁传控技术有限公司 | Hydraulic system and gripper for mechanical arm gripper |
-
2014
- 2014-05-19 CN CN201420255699.1U patent/CN203809378U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181502A (en) * | 2019-04-19 | 2019-08-30 | 武汉智仁传控技术有限公司 | Hydraulic system and gripper for mechanical arm gripper |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20200519 |