CN202700953U - Universal rolling mill stand locking hydraulic circuit system - Google Patents
Universal rolling mill stand locking hydraulic circuit system Download PDFInfo
- Publication number
- CN202700953U CN202700953U CN 201220383607 CN201220383607U CN202700953U CN 202700953 U CN202700953 U CN 202700953U CN 201220383607 CN201220383607 CN 201220383607 CN 201220383607 U CN201220383607 U CN 201220383607U CN 202700953 U CN202700953 U CN 202700953U
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic
- pressure
- circuit system
- locking
- 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.)
- Expired - Fee Related
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
- Check Valves (AREA)
Abstract
The utility model discloses a universal rolling mill stand locking hydraulic circuit system, and a hydraulic cylinder can conduct decompression operation in locking and opening mode. The hydraulic circuit system comprises a one-way valve, a pressure reducing valve, a throttle valve, an electromagnetic reversing valve and a hydraulic oil source, the one-way valve is installed between the throttle valve and the electromagnetic reversing valve, and the pressure reducing valve is installed between the electromagnetic reversing valve and the hydraulic oil source. Further, the one-way valve is a stacked type hydraulic controlled one-way valve. The stacked type hydraulic control one-way valve avoids impact caused by direct leading-in of a control oil line from a high pressure circuit, can also avoid oil leakage, sharp falling of locking pressure, and equipment failure which are caused by seal failure of plugs on both ends of a main valve core.
Description
Technical field
The utility model relates to a kind of hydraulic circuit system, relates in particular to a kind of universal rolling mill locking hydraulic circuit system.
Background technology
Have pressure-reducing valve, check valve, stacked unidirectional throttle valve on reversal valve, the locking path to drive two Cylinder for Parallel Connections in the existing universal rolling mill locking hydraulic circuit system, above-mentioned check valve is comprised of Solenoid ball valve, links to each other by pipeline between each valve.Wherein also have pressure switch and the overflow valve of equipment being controlled and guaranteed equipment safety operation.Its effect of above-mentioned Solenoid ball valve mainly is normal when rolling, keep the rack locking state, and so that the hydraulic cylinder works cavity pressure keeps constant, when frame is opened (particularly at the roll change state), keep locked hydraulic cylinder to be in open mode always, avoid sealing the leakage of bad generation because of other valve member in the loop, cause equipment fault, especially in frame roll change process, in case hydraulic cylinder stretches out, comparatively serious equipment breakdown will be produced.
Existing this circuit system has the following disadvantages:
(1) in the normal operation of rolling, the main valve plug two ends plug seal failure of Solenoid ball valve often occurs, leakage of oil causes locking pressure and sharply descends, and causes equipment fault.
(2) pressure-reducing valve just reduces pressure under the hydraulic locking cylinder state.In the hydraulic cylinder opening procedure, reduce pressure, it is larger to cause hydraulic cylinder and whole loop to be impacted, and causes easily the seal failure oil leakage fault.
(3) locking pressure can not keep stable, and reason is the Solenoid ball valve seal failure, produces and leaks.
The existence of the problems referred to above usually causes the multi-function production line disorderly closedown, has both affected the normal operation of whole production line, has increased again the Maintenance and Repair cost.
The utility model content
The technical problem that the utility model solves provides a kind of hydraulic locking cylinder and opens the universal rolling mill locking hydraulic circuit system of the operation of can both reducing pressure.
The technical scheme that its technical problem that solves the utility model adopts is: universal rolling mill locking hydraulic circuit system, comprise check valve, pressure-reducing valve, choke valve, solenoid directional control valve and hydraulic oil source, described check valve are arranged between choke valve and the solenoid directional control valve, and described pressure-reducing valve is arranged between solenoid directional control valve and the hydraulic oil source, and the oil-out of pressure-reducing valve links to each other with an oil-in of solenoid directional control valve, and the oil-in of pressure-reducing valve links to each other with hydraulic oil source.
Further be: described check valve is stacking type hydraulic control check valve.
The beneficial effects of the utility model are: pressure-reducing valve is adjusted to before the solenoid directional control valve, realized hydraulic locking cylinder and opened the operation of can both reducing pressure, the minimizing system shock.Stacking type hydraulic control check valve has avoided oil circuit control directly to introduce the impact that causes by high tension loop, also can avoid descending owing to leakage of oil, locking pressure that the plug seal failure of main valve plug two ends causes are rapid and causing equipment fault.
Description of drawings
Fig. 1 is the schematic diagram of universal rolling mill locking hydraulic circuit system of the present utility model;
Be labeled as among the figure: hydraulic cylinder 1, choke valve 3, check valve 4, solenoid directional control valve 5, pressure-reducing valve 6.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
As shown in Figure 1, universal rolling mill locking hydraulic circuit system, comprise check valve 4, pressure-reducing valve 6, choke valve 3, solenoid directional control valve 5 and hydraulic oil source, described check valve 4 is arranged between choke valve 3 and the solenoid directional control valve 5, described pressure-reducing valve 6 is arranged between solenoid directional control valve 5 and the hydraulic oil source, and the oil-out of pressure-reducing valve 6 links to each other with an oil-in of solenoid directional control valve 5, and the oil-in of pressure-reducing valve 6 links to each other with hydraulic oil source.Pressure-reducing valve is adjusted to before the solenoid directional control valve, before hydraulic oil enters solenoid directional control valve 5, just high pressure is carried out Decompression Controlling, the controlled pressure grade is reduced, realized hydraulic locking cylinder and opened the operation of to reduce pressure, reduced system shock.
On the basis of the above, described check valve 4 is stacking type hydraulic control check valve.Stacking type hydraulic control check valve is a kind of existing valve body that can directly buy.This valve body is applied in the hydraulic circuit system of the present utility model, avoided oil circuit control directly to introduce the impact that causes by high tension loop, also can avoid descending owing to leakage of oil, locking pressure that the plug seal failure of main valve plug two ends causes are rapid and causing equipment fault.It is the advantage of the conical surface and arc surface sphere-contact that said structure takes full advantage of between the spool of hydraulic control one-way valve and the valve body, also is that it adopts the conical surface and arc surface sealing, so that improvement effect is good, and the components and parts long working life.
Claims (2)
1. universal rolling mill is locked hydraulic circuit system, comprise check valve (4), pressure-reducing valve (6), choke valve (3), solenoid directional control valve (5) and hydraulic oil source, described check valve (4) is arranged between choke valve (3) and the solenoid directional control valve (5), it is characterized in that: described pressure-reducing valve (6) is arranged between solenoid directional control valve (5) and the hydraulic oil source, and the oil-out of pressure-reducing valve (6) links to each other with an oil-in of solenoid directional control valve (5), and the oil-in of pressure-reducing valve (6) links to each other with hydraulic oil source.
2. universal rolling mill as claimed in claim 1 is locked hydraulic circuit system, and it is characterized in that: described check valve (4) is stacking type hydraulic control check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383607 CN202700953U (en) | 2012-08-03 | 2012-08-03 | Universal rolling mill stand locking hydraulic circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383607 CN202700953U (en) | 2012-08-03 | 2012-08-03 | Universal rolling mill stand locking hydraulic circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202700953U true CN202700953U (en) | 2013-01-30 |
Family
ID=47581293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220383607 Expired - Fee Related CN202700953U (en) | 2012-08-03 | 2012-08-03 | Universal rolling mill stand locking hydraulic circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202700953U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151129A (en) * | 2015-03-28 | 2016-11-23 | 鞍钢股份有限公司 | Vertical roll changing balance hydraulic system |
| CN108980134A (en) * | 2018-09-27 | 2018-12-11 | 天津市中重科技工程有限公司 | A kind of Novel universal vertical roll of rolling crossbeam compression hydraulic system |
-
2012
- 2012-08-03 CN CN 201220383607 patent/CN202700953U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151129A (en) * | 2015-03-28 | 2016-11-23 | 鞍钢股份有限公司 | Vertical roll changing balance hydraulic system |
| CN108980134A (en) * | 2018-09-27 | 2018-12-11 | 天津市中重科技工程有限公司 | A kind of Novel universal vertical roll of rolling crossbeam compression hydraulic system |
| CN108980134B (en) * | 2018-09-27 | 2024-03-08 | 中重科技(天津)股份有限公司 | Novel hydraulic system for compressing vertical roller cross beam of universal rolling mill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203441509U (en) | Novel large-flow hydraulic control one-way valve | |
| CN201513115U (en) | High-low double-speed pressurizing system of rotary drilling rig | |
| CN201344288Y (en) | Dual-electromagnet two-position four-way ball valve | |
| CN202700953U (en) | Universal rolling mill stand locking hydraulic circuit system | |
| CN202845491U (en) | Hydraulic control system for belt wrapper tensioning device | |
| CN203098720U (en) | Double-outlet-rod ring-shaped magnetic steel piston magneto-rheological damper | |
| CN204200723U (en) | Mine hoist hydraulic station modified node method | |
| CN202579378U (en) | Intelligent tensioning system | |
| CN103573729A (en) | Mine hoist hydraulic station | |
| CN203796643U (en) | Adjustable throttling hydraulic lock of coal mining machine | |
| CN203023546U (en) | Tee joint | |
| CN202851481U (en) | Hydraulic control device of connecting shaft bracket | |
| CN202017805U (en) | Mechanical over-pressure/under-pressure protecting device for high pressure explosion-proof electromagnetic valve | |
| CN205298113U (en) | Explosion -proof valve | |
| CN202914757U (en) | Anti-explosion pilot-operated type solenoid valve | |
| CN103790884B (en) | Four-state adjustable air channel structure | |
| CN204704187U (en) | Overload unloading valve | |
| CN103469847A (en) | Emergency falling system of movable arm of loader | |
| CN204239554U (en) | A kind of internal respiration device for brake chamber | |
| CN204003686U (en) | Mine hoist hydraulic station | |
| CN204025847U (en) | A kind of pneumatic reversing solenoid valve | |
| CN205047562U (en) | Logical oil circuit control system of electromagnetic switch valve | |
| CN204457834U (en) | Self-tipping formula reversible lock | |
| CN203067900U (en) | Safety control valve of polyethylene equipment | |
| CN201735797U (en) | Fine spherical aluminum powder circulating, air replenishing and pressure reducing system |
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: 20130130 Termination date: 20160803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |