CN204299999U - A kind of redundant system controlled for coiling clamp roller back pressure - Google Patents
A kind of redundant system controlled for coiling clamp roller back pressure Download PDFInfo
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- CN204299999U CN204299999U CN201420698192.3U CN201420698192U CN204299999U CN 204299999 U CN204299999 U CN 204299999U CN 201420698192 U CN201420698192 U CN 201420698192U CN 204299999 U CN204299999 U CN 204299999U
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Abstract
The utility model discloses a kind of redundant system controlled for coiling clamp roller back pressure, belong to hot rolling technique field.The described redundant system for the control of coiling clamp roller back pressure comprises two back pressures supply oil circuits, and described two back pressures supply oil circuit is set up in parallel, and described each back pressure supply oil circuit one end is communicated with described fuel supply line, and the other end is communicated with described transport pipe.The redundant system that the utility model is used for the control of coiling clamp roller back pressure can improve system works reliability, the impact that abatement apparatus fault is brought.
Description
Technical field
The utility model relates to hot rolling technique field, particularly a kind of redundant system controlled for coiling clamp roller back pressure.
Background technique
Hot-strip batches pinch roller and mainly plays after band steel enters and batches, band steel of nipping, and forces strip steel head to be bent downwardly, and enters reel and Wrapping Roll gap, batch along guide plate direction, sets up strip tension effect in milling train end frame and between batching simultaneously.The roll gap regulation of pinch roller is realized by two oil cylinders of HYDRAULIC CONTROL SYSTEM, and the rod chamber of oil cylinder is by two groups of servo valve controls, and rodless cavity is controlled by system back pressure.In back pressure system, three-way pressure reducing valve is installed, frequent owing to working, valve element position changes, and causes hydraulic fluid port to change, easily causes pollutant to block hydrovalve, pinch roller is caused not lift smoothly, have influence on this TV station coiling machine and below coiling machine drop into, if First pinch roller fault, must cause produce interrupt, especially to picture CSP tinuous production, fault brings impact larger.
Model utility content
Technical problem to be solved in the utility model is to provide one can improve system works reliability, the redundant system controlled for coiling clamp roller back pressure of the impact that abatement apparatus fault is brought.
For solving the problems of the technologies described above, the utility model provides a kind of redundant system controlled for coiling clamp roller back pressure, for the fluid in fuel supply line is delivered to withdrawal roll oil cylinder conveyor chamber by transport pipe; Described redundant system comprises two back pressure supply oil circuits, and described two back pressures supply oil circuit is set up in parallel, and described each back pressure supply oil circuit one end is communicated with described fuel supply line, and the other end is communicated with described transport pipe; Described each back pressure supply oil circuit comprises: the first Pilot operated check valve, is communicated with described fuel supply line; First three-way pressure reducing valve, is communicated with described first hydraulic control valve; Second Pilot operated check valve, one end is communicated with described first three-way pressure reducing valve, and the other end is communicated with described transport pipe; First selector valve, is communicated with described fuel supply line with described first Pilot operated check valve, described second Pilot operated check valve, and the first selector valve controls the opening and closing of described first Pilot operated check valve and the second Pilot operated check valve; Described first selector valve is communicated with described fuel supply line; Wherein, the fluid in described fuel supply line enters described transport pipe by described first Pilot operated check valve, the first three-way pressure reducing valve and the second Pilot operated check valve successively, and described first selector valve controls the opening and closing of described first Pilot operated check valve and the second Pilot operated check valve.
Further, described first hydraulically-controlled one-way valve is communicated with a drain mast; Described first three-way pressure reducing valve is communicated with a return tube; Described second Pilot operated check valve is communicated with described drain mast; Described first selector valve is communicated with described return tube; Wherein, described first three-way pressure reducing valve is that the fluid reducing oil pressure discharge is transported to described return tube, and the fluid of the drain tap of described first Pilot operated check valve is transported to described drain mast, and the fluid of the drain tap of described second Pilot operated check valve is transported to described drain mast; Fluid is delivered to described fuel supply line and return tube by described first selector valve.
Further, the redundant system that the utility model is used for the control of coiling clamp roller back pressure also comprises the first pressure-measuring head, and described first pressure-measuring head is arranged in the control port of described first Pilot operated check valve and the first selector valve.
Further, the redundant system that the utility model is used for the control of coiling clamp roller back pressure also comprises safety oil-way, and described safety oil-way one end is communicated with described transport pipe, and the other end is communicated with described return tube; Wherein, described safety oil-way is prevent that oil pressure is too high is transported to described return tube by unnecessary fluid.
Further, described safety oil-way comprises safety valve, and described safety valve one end is communicated with described transport pipe, and the other end is communicated with described return tube; Wherein, in described transport pipe, in order to prevent, oil pressure is too high is transported to described return tube by unnecessary fluid by described safety valve.
Further, the redundant system that the utility model is used for the control of coiling clamp roller back pressure also comprises off-load oil circuit, and described off-load oil circuit one end is communicated with described transport pipe, and the other end is communicated with described drain mast; Wherein, the fluid in described transport pipe is transported to described drain mast by described off-load oil circuit.
Further, described off-load oil circuit comprises cut-off valve, and described cut-off valve one end is communicated with described transport pipe, and the other end is communicated with described drain mast; Wherein, the fluid in described transport pipe is transported to described drain mast by described cut-off valve.
Further, the redundant system that the utility model is used for the control of coiling clamp roller back pressure also comprises the second pressure-measuring head, and described second pressure-measuring head is arranged on described transport pipe.
Two back pressures supply oil circuits of the redundant system for the control of coiling clamp roller back pressure that the utility model provides are set up in parallel, and each back pressure supply oil circuit one end is communicated with fuel supply line, and the other end is communicated with transport pipe; First Pilot operated check valve of each back pressure supply oil circuit is communicated with described fuel supply line; First three-way pressure reducing valve is communicated with the first hydraulic control valve; Second Pilot operated check valve one end is communicated with the first three-way pressure reducing valve, and the other end is communicated with transport pipe; First selector valve is communicated with fuel supply line with the first Pilot operated check valve, the second Pilot operated check valve, and the first selector valve controls the opening and closing of the first Pilot operated check valve and the second Pilot operated check valve; First selector valve is communicated with fuel supply line; Fluid in fuel supply line enters transport pipe by the first Pilot operated check valve, the first three-way pressure reducing valve and the second Pilot operated check valve successively, first selector valve controls the opening and closing of the first Pilot operated check valve and the second Pilot operated check valve, two back pressure supply oil circuits are for subsequent use each other, improve system works reliability, the impact that abatement apparatus fault is brought.
Accompanying drawing explanation
The schematic diagram of the redundant system for the control of coiling clamp roller back pressure that Fig. 1 provides for the utility model embodiment.
Embodiment
See Fig. 1, the utility model embodiment provides a kind of redundant system for the control of coiling clamp roller back pressure and comprises: two back pressures supply oil circuits.
Described two back pressures supply oil circuit is set up in parallel, and described each back pressure supply oil circuit one end is communicated with described fuel supply line 14, and the other end is communicated with described transport pipe 17.
Described each back pressure supply oil circuit comprises: the first Pilot operated check valve 1, first three-way pressure reducing valve 2, second Pilot operated check valve 10 and the first selector valve 3.
First Pilot operated check valve 1 is communicated with described fuel supply line 14;
First three-way pressure reducing valve 2 is communicated with described first hydraulic control valve 1;
Second Pilot operated check valve 10, one end is communicated with described first three-way pressure reducing valve 2, and the other end is communicated with described transport pipe 17;
First selector valve 3, is communicated with described fuel supply line 14 with described first Pilot operated check valve 1, described second Pilot operated check valve 10, and the first selector valve 3 controls the opening and closing of described first Pilot operated check valve 1 and the second Pilot operated check valve 10; Described first selector valve 3 is communicated with described fuel supply line 14;
Wherein, fluid in described fuel supply line 14 enters described transport pipe 17 by described first Pilot operated check valve 1, first three-way pressure reducing valve 2 and the second Pilot operated check valve 10 successively, and described first selector valve 3 controls the opening and closing of described first Pilot operated check valve 1 and the second Pilot operated check valve 10.
Introduce the utility model embodiment in order to clearer, be described in detail from all parts below.
Described each back pressure supply oil circuit one end is communicated with described fuel supply line 14, and the other end is communicated with described transport pipe 17; Described first back pressure supply oil circuit is communicated with described return tube 15; Described first back pressure supply oil circuit is communicated with described drain mast 16.Described first back pressure supply oil circuit comprises the first Pilot operated check valve 1, and described first hydraulically-controlled one-way valve 1 is communicated with described fuel supply line 14; Described first hydraulically-controlled one-way valve 1 is communicated with described drain mast 16; Described first three-way pressure reducing valve 2 is communicated with described first hydraulic control valve 1; Described first three-way pressure reducing valve 2 is communicated with described return tube 15; Described second Pilot operated check valve 10 one end is communicated with described first three-way pressure reducing valve 2, and the other end is communicated with described transport pipe 17; Described second Pilot operated check valve 10 is communicated with described first selector valve 3 and is communicated with described first Pilot operated check valve 1 with described return tube 15; Described first selector valve 3 is communicated with described second Pilot operated check valve 10; Described first selector valve 3 is communicated with described fuel supply line 14; Described first selector valve 3 is communicated with described return tube 15.Concrete, in the present embodiment, fluid in described fuel supply line 14 is successively by described first Pilot operated check valve 1, first three-way pressure reducing valve 2 and the second Pilot operated check valve 10 enter described transport pipe 17, described first three-way pressure reducing valve 2 is that the fluid reducing oil pressure discharge is transported to described return tube 15, the fluid of the drain tap of described first Pilot operated check valve 1 is transported to described drain mast 16, the fluid of the drain tap of described second Pilot operated check valve 10 is transported to described drain mast 16, described first selector valve 3 controls the opening and closing of described first Pilot operated check valve 1 and the second Pilot operated check valve 10, fluid is delivered to described fuel supply line 14 and return tube 15 by described first selector valve 3.Concrete, in the present embodiment, described first back pressure supply oil circuit also comprises the first pressure-measuring head 9, described first pressure-measuring head 9 is arranged in the control port of described first Pilot operated check valve 1 and the first selector valve 3, first pressure-measuring head 9 for detecting the pilot pressure of the first Pilot operated check valve 1, thus judges whether the first Pilot operated check valve 1 is opened.
Described safety oil-way one end is connected with described transport pipe 17, and the other end is connected with described return tube 15.Described safety oil-way comprises safety valve 13, and described safety valve 13 one end is communicated with described transport pipe 17, and the other end is communicated with described return tube 15; Particularly, in the present embodiment, in described transport pipe 17, in order to prevent, oil pressure is too high is transported to described return tube 15 by unnecessary fluid by described safety valve 13.
The redundant system that the utility model is used for the control of coiling clamp roller back pressure also comprises off-load oil circuit, and described off-load oil circuit one end is communicated with described transport pipe 17, and the other end is communicated with described drain mast 16; Particularly, in the present embodiment, the fluid in described transport pipe 17 is transported to described drain mast 16 by described off-load oil circuit.Described off-load oil circuit comprises cut-off valve 11, and described cut-off valve 11 one end is communicated with described transport pipe 17, and the other end is communicated with described drain mast 16; Particularly, in the present embodiment, the fluid in described transport pipe is transported to described drain mast 16 by described cut-off valve.
The redundant system that the utility model is used for the control of coiling clamp roller back pressure also comprises the second pressure-measuring head 12, and whether described second pressure-measuring head 12 is arranged on described transport pipe 17, normal for detecting back pressure.
Introduce the utility model embodiment in order to clearer, introduced from the using method of the utility model embodiment below.
Fluid in fuel supply line 14 enters described transport pipe 17 by first back pressure supply the first Pilot operated check valve 1, first three-way pressure reducing valve 2 of oil circuit and the second Pilot operated check valve 10 successively.The fluid oil pressure that fuel supply line 14 is directly carried is larger, first three-way pressure reducing valve 2 reduces supply oil pressure, and unnecessary fluid is transported to return tube 15, first Pilot operated check valve 1 and the second Pilot operated check valve 10 are in opening and closing process, and the drain tap fluid of the first Pilot operated check valve 1 and the second Pilot operated check valve 10 is transported to drain mast 16.First selector valve 3 controls the opening and closing of the first Pilot operated check valve 1 and the second Pilot operated check valve 10, and fluid is delivered to fuel supply line 14 and return tube 15 by the first selector valve 3.Fluid in fuel supply line 14 enters transport pipe 17 by the second back pressure supply the 3rd Pilot operated check valve 5, second three-way pressure reducing valve 6 of oil circuit and the 4th Pilot operated check valve 7 successively.First pressure-measuring head 9 for detecting the pilot pressure of the first Pilot operated check valve 1, thus judges whether the first Pilot operated check valve 1 is opened.The fluid oil pressure that fuel supply line 14 is directly carried is larger, second three-way pressure reducing valve 6 reduces supply oil pressure, and unnecessary fluid is transported to return tube 15,3rd Pilot operated check valve 5 and the 4th Pilot operated check valve 7 are in opening and closing process, and the fluid of the 3rd Pilot operated check valve 5 and the 4th Pilot operated check valve 7 drain tap is transported to drain mast 16.Second selector valve 4 controls the opening and closing of the 3rd Pilot operated check valve 5 and the 4th Pilot operated check valve 7, and fluid is delivered to fuel supply line 14 and return tube 15 by the second selector valve 4.3rd pressure-measuring head 8 for detecting the pilot pressure of the 3rd Pilot operated check valve 5, thus judges whether the 3rd Pilot operated check valve 5 is opened.Whether the second pressure-measuring head 12 is arranged on transport pipe 17, normal for detecting back pressure, and when after the oil pressure superpressure in transport pipe 17, opening the safety-valve in time 13 is transported to return tube 15 by fluid, carries out pressure release.By cut-off valve 11 on operation off-load oil circuit, can let out rapidly except back pressure.
First back pressure supply oil circuit and the second back pressure supply oil circuit can put into operation simultaneously, and the fluid in fuel supply line 14 is delivered to withdrawal roll oil cylinder conveyor chamber by transport pipe 17.The valve element position of the second three-way pressure reducing valve 6 in the first back pressure supply oil circuit first three-way pressure reducing valve 2 or the second back pressure supply oil circuit, all the time in change, easily causes spool to block, and causes pinch roller can not lifting.When the second back pressure supply oil circuit produces fault, by the second selector valve 4 dead electricity, close the second back pressure supply oil circuit, first back pressure supply oil circuit carries out work, first Pilot operated check valve 1, first three-way pressure reducing valve 2 and second Pilot operated check valve 10 of the first back pressure supply oil circuit enter transport pipe 17, the fluid of transport pipe 17 is delivered to withdrawal roll oil cylinder conveyor chamber, and pinch roller works on.When the first back pressure supply oil circuit produces fault, by the first selector valve 3 dead electricity, close the first back pressure supply oil circuit, second back pressure supply oil circuit carries out work, 3rd Pilot operated check valve 5, second three-way pressure reducing valve 6 and the 4th Pilot operated check valve 7 of the second back pressure supply oil circuit enter transport pipe 17, the fluid of transport pipe 17 is delivered to withdrawal roll oil cylinder conveyor chamber, and pinch roller works on.
Two back pressures supply oil circuits of the redundant system for the control of coiling clamp roller back pressure that the utility model provides are set up in parallel, and each back pressure supply oil circuit one end is communicated with fuel supply line, and the other end is communicated with transport pipe; First Pilot operated check valve of each back pressure supply oil circuit is communicated with described fuel supply line; First three-way pressure reducing valve is communicated with the first hydraulic control valve; Second Pilot operated check valve one end is communicated with the first three-way pressure reducing valve, and the other end is communicated with transport pipe; First selector valve is communicated with fuel supply line with the first Pilot operated check valve, the second Pilot operated check valve, and the first selector valve controls the opening and closing of the first Pilot operated check valve and the second Pilot operated check valve; First selector valve is communicated with fuel supply line; Fluid in fuel supply line enters transport pipe by the first Pilot operated check valve, the first three-way pressure reducing valve and the second Pilot operated check valve successively, first selector valve controls the opening and closing of the first Pilot operated check valve and the second Pilot operated check valve, two back pressure supply oil circuits are for subsequent use each other, improve system works reliability, the impact that abatement apparatus fault is brought.
It should be noted last that, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to example, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (8)
1. for the redundant system that coiling clamp roller back pressure controls, for the fluid in fuel supply line (14) is delivered to withdrawal roll oil cylinder conveyor chamber by transport pipe (17); It is characterized in that, described redundant system comprises:
Two back pressure supply oil circuits, described two back pressures supply oil circuit is set up in parallel, and described each back pressure supply oil circuit one end is communicated with described fuel supply line (14), and the other end is communicated with described transport pipe (17);
Described each back pressure supply oil circuit comprises:
First Pilot operated check valve (1), is communicated with described fuel supply line (14);
First three-way pressure reducing valve (2), is communicated with described first hydraulic control valve (1);
Second Pilot operated check valve (10), one end is communicated with described first three-way pressure reducing valve (2), and the other end is communicated with described transport pipe (17);
First selector valve (3), be communicated with described fuel supply line (14) with described first Pilot operated check valve (1), described second Pilot operated check valve (10), the first selector valve (3) controls the opening and closing of described first Pilot operated check valve (1) and the second Pilot operated check valve (10); Described first selector valve (3) is communicated with described fuel supply line (14);
Wherein, fluid in described fuel supply line (14) enters described transport pipe (17) by described first Pilot operated check valve (1), the first three-way pressure reducing valve (2) and the second Pilot operated check valve (10) successively, and described first selector valve (3) controls the opening and closing of described first Pilot operated check valve (1) and the second Pilot operated check valve (10).
2. redundant system according to claim 1, is characterized in that:
Described first hydraulically-controlled one-way valve (1) is communicated with a drain mast (16);
Described first three-way pressure reducing valve (2) is communicated with a return tube (15);
Described second Pilot operated check valve (10) is communicated with described drain mast (16);
Described first selector valve (3) is communicated with described return tube (15);
Described first three-way pressure reducing valve (2) is that the fluid reducing oil pressure discharge is transported to described return tube (15), the fluid of the drain tap of described first Pilot operated check valve (1) is transported to described drain mast (16), and the fluid of the drain tap of described second Pilot operated check valve (10) is transported to described drain mast (16); Fluid is delivered to described fuel supply line (14) and return tube (15) by described first selector valve (3).
3. redundant system according to claim 2, is characterized in that, described redundant system also comprises:
First pressure-measuring head (9), described first pressure-measuring head (9) is arranged in the control port of described first Pilot operated check valve (1) and the first selector valve (3).
4. redundant system according to claim 2, is characterized in that, described redundant system also comprises:
Safety oil-way, described safety oil-way one end is communicated with described transport pipe (17), and the other end is communicated with described return tube (15);
Wherein, in order to prevent, oil pressure is too high is transported to described return tube (15) by unnecessary fluid to described safety oil-way.
5. redundant system according to claim 4, is characterized in that, described safety oil-way comprises:
Safety valve (13), described safety valve (13) one end is communicated with described transport pipe (17), and the other end is communicated with described return tube (15);
Wherein, in described transport pipe (17), in order to prevent, oil pressure is too high is transported to described return tube (15) by unnecessary fluid by described safety valve (13).
6. redundant system according to claim 2, is characterized in that, described redundant system also comprises:
Off-load oil circuit, described off-load oil circuit one end is communicated with described transport pipe (17), and the other end is communicated with described drain mast (16);
Wherein, the fluid in described transport pipe (17) is transported to described drain mast (16) by described off-load oil circuit.
7. redundant system according to claim 6, is characterized in that, described off-load oil circuit comprises:
Cut-off valve (11), described cut-off valve (11) one end is communicated with described transport pipe (17), and the other end is communicated with described drain mast (16);
Wherein, the fluid in described transport pipe is transported to described drain mast by described cut-off valve.
8. redundant system according to claim 1, is characterized in that, described redundant system also comprises:
Second pressure-measuring head (12), described second pressure-measuring head (12) is arranged on described transport pipe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698192.3U CN204299999U (en) | 2014-11-19 | 2014-11-19 | A kind of redundant system controlled for coiling clamp roller back pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698192.3U CN204299999U (en) | 2014-11-19 | 2014-11-19 | A kind of redundant system controlled for coiling clamp roller back pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299999U true CN204299999U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420698192.3U Expired - Fee Related CN204299999U (en) | 2014-11-19 | 2014-11-19 | A kind of redundant system controlled for coiling clamp roller back pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204299999U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402055A (en) * | 2016-08-26 | 2017-02-15 | 广西柳州银海铝业股份有限公司 | Hydraulic system of coil stripping car |
| CN106424221A (en) * | 2016-12-19 | 2017-02-22 | 马钢(集团)控股有限公司 | Steel section straightener bottom pinch roller hydraulic drive system and controlling method thereof |
-
2014
- 2014-11-19 CN CN201420698192.3U patent/CN204299999U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402055A (en) * | 2016-08-26 | 2017-02-15 | 广西柳州银海铝业股份有限公司 | Hydraulic system of coil stripping car |
| CN106424221A (en) * | 2016-12-19 | 2017-02-22 | 马钢(集团)控股有限公司 | Steel section straightener bottom pinch roller hydraulic drive system and controlling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170713 Address after: 430080 Qingshan District stock company of Hubei, Wuhan Province Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Friendship Avenue, Hubei, Wuhan, No. 999 Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| 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: 20150429 Termination date: 20191119 |