CN2161762Y - Hydraulic controller for roller press - Google Patents
Hydraulic controller for roller press Download PDFInfo
- Publication number
- CN2161762Y CN2161762Y CN 93205461 CN93205461U CN2161762Y CN 2161762 Y CN2161762 Y CN 2161762Y CN 93205461 CN93205461 CN 93205461 CN 93205461 U CN93205461 U CN 93205461U CN 2161762 Y CN2161762 Y CN 2161762Y
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- valve
- oil
- hydraulic control
- piston
- flat
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Abstract
The utility model discloses a cement, trade such as mine is roller press hydraulic control device for broken material, also can be used to the rolling mill, on the hydraulic pressure screw-down device of straightener, its leading features is, four oil feed and oil return line that are used for between the flat hydro-cylinder of supporting squeeze roll and the oil pump are on, be connected two-position two-way electromagnetic ball valves between oil pump and check valve promptly, be connected two-position two-way electromagnetic ball valves between oil tank and safety ball valve, make flat hydro-cylinder work steady, the action is reliable, in addition need not process the annular groove on the piston neck of flat oil piston stopper front end, and make the inclined plane form with piston contact department on the seal frame between piston neck and cylinder body, form annular triangle-shaped space, set up the O ring again in it, sealing performance is good, and is with low costs. The valve body of the one-way valve in the device is made into a cone, so that the device is easy to process and has good sealing performance.
Description
The utility model is the improvement of industry broken materials such as cement, mine with roll-in and hydraulic control device, also can be used on the holding-down device of hydraulic of rolling mill, straightening machine.
Two squeezing rolls on the roll squeezer relatively rotate, four flat oil cylinders are supporting four bearing supports at two squeezing roll two ends, because the material size and the hardness difference that are broken, therefore, flat oil cylinder is back and forth frequent, the hydraulic system pressure fluctuation is frequent, and at this moment the working stability of whole hydraulic control system proposes harsh requirement.
At present, in the roll squeezer hydraulic control device that the big vast fort of German KHD company makes:
1, is connected two three-position five-way Solenoid ball valves by pipeline between four flat oil cylinders and oil pressure (pump) device, this valve arrangement complexity is difficult to manufacturing, and domestic still do not have a this Solenoid ball valve.
2, be the correct flat oil cylinder working-pressure variation that shows, adopt pointer shock-proof pressure gauge and pressure transducer.Because variation in pressure is frequent in the hydraulic control system, its life-span is shorter.
3, the piston neck of flat oil cylinder inner carrier front end need slot (promptly being processed with annular groove) and with the O V-shaped ring and
The triangle seal ring is provided with in it.(processing annular groove) fluting on the piston neck, difficult, complex process, cost height.
4, the valve body of one-way valve adopts spherical surface body, processing difficulties cost height.
The purpose of this utility model is to overcome above shortcomings part in the above-mentioned roll squeezer hydraulic control device, and provides a kind of cost low, easily makes reliable performance, the roll squeezer hydraulic control system of suitable China's national situation.
The utility model can be realized by following measure.
In the roll squeezer hydraulic control system by hydraulic element formations such as flat oil cylinder, Solenoid ball valve, ball relief valve, pressure gauge, oil pressure (pump) device and pipelines, between four flat oil cylinders and oil pressure (pump) device, be connected two bi-bit bi-pass magnet valves with pipeline, a pressure digital display transmitter respectively is installed on two ball relief valves, and pressure-display is digital.Per second can show pressure three times.
The utility model also can further be realized by following measure:
The piston neck of its inner carrier front end of flat oil cylinder in the hydraulic control system must (not processed annular groove) and slot, on the ring packing frame that is provided with between cylinder body and the piston neck, be made into inclined plane shape with piston neck contacting point, form annular triangle space, the O V-shaped ring is set in this space.
One-way valve in the hydraulic control system, its valve body is made into cone, with being threaded, scribbles anaerobic adhesive on the screw thread between two fittings bodies on the one-way valve, the steel seal ring that two fittings body joints an inboard to be set also be rubber.
The utility model provides the following drawings.
Accompanying drawing 1 is the utility model hydraulic control schematic diagram.
Accompanying drawing 2 is the flat cylinder structure schematic representation of the utility model.
Accompanying drawing 3 is the utility model one-way valve structures schematic representation.
Providing embodiment below in conjunction with accompanying drawing is further described:
The utility model hydraulic control system is left and right symmetry shape shown in the accompanying drawing 1, is that example describes in detail with the left side.
Oil pump (1) connects bi-bit bi-pass Solenoid ball valve (3) by pipeline (2), between bi-bit bi-pass Solenoid ball valve (3) and ball relief valve (5), an one-way valve (4) is set, is connected with accumulator (7), throttle orifice (9), one-way valve (8) and (10) and accumulator (13) on the pipeline (6), flat oil cylinder (11) is connected with throttle orifice (9), one-way valve (8), (10) with (12).Upward connect accumulator (14) and digital display pressure transmitter (15), bi-bit bi-pass Solenoid ball valve (16) at ball relief valve (5) and terminate at by pipeline one between one-way valve (4) and the ball relief valve (5), the other end is connected on the oil circuit (17).
Shown in the accompanying drawing 2, four flat oil cylinder internal structure unanimities in the hydraulic control device have certain clearance between piston (23) and the cylinder body (27), and its sealing is finished by the seal ring on the ring packing frame (25).One piston neck (24) is arranged on piston (23), and ring packing frame (25) is arranged between piston (23) and the cylinder body (27).Go up and piston neck (23) touching position at ring packing frame (25), the right and left is made into inclined plane shape, forms annular triangle space, and O V-shaped ring (26) is set in this sky system, and the cylinder inner fluid can not be leaked.
All one-way valve internal structure unanimities in the hydraulic control device shown in the accompanying drawing 3.Check valve inlet place valve body (31), be made into cone, rather than common spherical surface body, connect with screw thread (28) between fittings body (32) and (30), and on screw thread (28), scribble anaerobic adhesive, the steel seal ring (29) that also to be provided with an inboard between fittings body (32) and (30) be rubber.Flat oil cylinder in the utility model, one-way valve structures are all consistent.
The utility model working procedure is as follows:
Hydraulic control device is left and right symmetry shape, is that example describes in detail with the left side.
Electric motor starting drives oil pump (1) fuel feeding in hydraulic control system, Solenoid ball valve (3) energising, spool moves to right, and oil is through this valve flow through one-way valve (4), ball relief valve (5), throttle orifice (9), enter in single oil cylinder (11) and (12), oil cylinder piston (23) is pushed ahead.When oil pressure reached predetermined pressure, digital display pressure transmitter (15) display system pressure sent signal, and motor quits work, Solenoid ball valve (3) outage, and spool moves to left, and hydraulic system is in packing state, the roll squeezer proper functioning.The hydraulic system oil pressure can make the flat oil cylinder of four of roll squeezer keep predetermined gross thrust.When oil pressure dropped to predetermined oil pressure, digital display power transmitter (15) showed and sends signal from new starting electrical machinery, drives oil pump (1) work, to the hydraulic system fuel feeding, till making hydraulic system reach predetermined oil pressure.
Ball relief valve (5) plays the safety valve effect under the hydraulic system packing state, accumulator (14) plays protection digital display pressure transmitter (15) effect.Accumulator (13) plays pressure pulsation in the absorption liquid pressing system, thereby guarantees that whole hydraulic system pressure is steady, working stability.
When roll squeezer in the course of the work, be doped with hard ware materials such as iron block in the material of squeezing roll fragmentation, press when motionless, be the protection roll surface, avoid damage.Four flat oil cylinder pistons (23) in the hydraulic system withdraw from automatically, at this moment system pressure raises, pressure oil flows in the accumulator (7) by one-way valve (8) and (10) rapidly, after iron block or hard ware material disengaging, oil cylinder piston (23) is pushed ahead, recover the normal position, the roll squeezer proper functioning.
When installation, debugging or service work, two squeezing roll positions on the roll squeezer install not to the time, need levelling, at this moment, Solenoid ball valve (16) energising, spool is to moving to left, connect oil circuit (17), flat oil cylinder (11) and (12) and unload part oil, at this moment align extrusion position again, after adjusting end, Solenoid ball valve (16) outage, spool moves to right.But roll squeezer proper functioning.
Claims (3)
1, roll squeezer hydraulic control device, constitute by flat oil cylinder, Solenoid ball valve, ball relief valve, one-way valve, oil pump, pressure gauge and pipeline, it is characterized in that: between oil pump (1) and one-way valve (4) and (18), be connected bi-bit bi-pass Solenoid ball valve (3) and (19) by pipeline (2), between fuel tank and ball relief valve (5) and (20), be connected bi-bit bi-pass Solenoid ball valve (16) and (22), go up in ball relief valve (5) and (20) and be connected with digital display pressure transmitter (15) and (21) by pipeline by pipeline (17).
2, roll squeezer hydraulic control device according to claim 1, it is characterized in that: the ring packing frame (25) that is provided with between the piston neck (24) of flat oil cylinder inner carrier (23) front end and the cylinder body (27) is made into inclined plane shape with piston neck (24) touching position, form annular triangle space, O V-shaped ring (26) is set in this space.
3, roll squeezer hydraulic control device according to claim 1, it is characterized in that: the valve body front end of one-way valve is made into the cone shape, connect with screw thread (28) between fittings body (30) and (32), and on screw thread (28), scribble anaerobic adhesive, the steel seal ring (29) that in fittings body (30) and (32) connecting part an inboard to be set also be rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93205461 CN2161762Y (en) | 1993-03-06 | 1993-03-06 | Hydraulic controller for roller press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93205461 CN2161762Y (en) | 1993-03-06 | 1993-03-06 | Hydraulic controller for roller press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2161762Y true CN2161762Y (en) | 1994-04-13 |
Family
ID=33788731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93205461 Expired - Fee Related CN2161762Y (en) | 1993-03-06 | 1993-03-06 | Hydraulic controller for roller press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2161762Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011757A (en) * | 2010-11-22 | 2011-04-13 | 莱芜钢铁股份有限公司 | Hydraulic system |
| CN102233288A (en) * | 2011-07-18 | 2011-11-09 | 成都利君实业股份有限公司 | Hydraulic system for rolling machine (high-pressure roller mill) |
| CN102671735A (en) * | 2012-05-08 | 2012-09-19 | 成都光华科技发展有限公司 | Roller press hydraulic system and automatic pressure stabilizing device thereof |
| CN104675773A (en) * | 2015-03-06 | 2015-06-03 | 浙江大学 | Pure water hydraulic system of roller press for precisely controlling rolling speed and method of pure water hydraulic system for precisely controlling rolling speed |
| CN104847716A (en) * | 2014-02-17 | 2015-08-19 | 异型弹簧有限公司 | Apparatus for the controlled pressurization of gas cylinder actuators |
| CN105156372A (en) * | 2015-10-22 | 2015-12-16 | 太原科技大学 | Pump-valve compound control hydraulic system for full-hydraulic straightener |
-
1993
- 1993-03-06 CN CN 93205461 patent/CN2161762Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011757A (en) * | 2010-11-22 | 2011-04-13 | 莱芜钢铁股份有限公司 | Hydraulic system |
| CN102011757B (en) * | 2010-11-22 | 2014-01-29 | 山东钢铁股份有限公司 | Hydraulic system |
| CN102233288A (en) * | 2011-07-18 | 2011-11-09 | 成都利君实业股份有限公司 | Hydraulic system for rolling machine (high-pressure roller mill) |
| CN102233288B (en) * | 2011-07-18 | 2014-05-14 | 成都利君实业股份有限公司 | Hydraulic system for rolling machine (high-pressure roller mill) |
| CN102671735A (en) * | 2012-05-08 | 2012-09-19 | 成都光华科技发展有限公司 | Roller press hydraulic system and automatic pressure stabilizing device thereof |
| CN104847716A (en) * | 2014-02-17 | 2015-08-19 | 异型弹簧有限公司 | Apparatus for the controlled pressurization of gas cylinder actuators |
| CN104847716B (en) * | 2014-02-17 | 2018-11-09 | 异型弹簧有限公司 | The device of controlled pressurization for gas cylinder actuators |
| CN104675773A (en) * | 2015-03-06 | 2015-06-03 | 浙江大学 | Pure water hydraulic system of roller press for precisely controlling rolling speed and method of pure water hydraulic system for precisely controlling rolling speed |
| CN105156372A (en) * | 2015-10-22 | 2015-12-16 | 太原科技大学 | Pump-valve compound control hydraulic system for full-hydraulic straightener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |