CN218502968U - Quick adjusting device for valve clearance of hot rolling coiler - Google Patents
Quick adjusting device for valve clearance of hot rolling coiler Download PDFInfo
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- CN218502968U CN218502968U CN202222429992.2U CN202222429992U CN218502968U CN 218502968 U CN218502968 U CN 218502968U CN 202222429992 U CN202222429992 U CN 202222429992U CN 218502968 U CN218502968 U CN 218502968U
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Abstract
The utility model relates to a hot rolling coiling machine valve clearance quick adjustment device belongs to metallurgical industry hot rolling coiling machine valve clearance control technical field. The technical scheme is as follows: the upper end of a valve connecting rod (7) with a stop block is connected with a cylinder rod of a valve hydraulic cylinder (4) through a connecting pin shaft (14), and the lower end of the valve connecting rod (7) with the stop block is connected with a lifting lug on a valve plate (6) through the connecting pin shaft (14); the adjusting block (9) is fixed on the pinch roll rack (3) through a bolt, the adjusting lead screw (10) is in threaded connection with the adjusting block (9), the lower end of the adjusting lead screw (10) is tightly attached to the stop block with the stop block valve connecting rod (7), and nuts (11) are arranged at two ends of the adjusting lead screw (10). The beneficial effects of the utility model are that: the purpose of accurately and quickly adjusting the valve clearance of the hot rolling coiler can be achieved by one person, the labor intensity of maintainers is reduced, and the personal safety is guaranteed.
Description
Technical Field
The utility model relates to a hot rolling coiling machine valve clearance quick adjustment device belongs to metallurgical industry hot rolling coiling machine valve clearance control technical field.
Background
On a hot-rolled strip steel production line, a coiler valve is positioned at the rear part of a coiler pinch roll and an inlet at the front part of the coiler, the main components of the coiler valve are composed of a valve plate, a valve roll, a valve hydraulic cylinder, a valve connecting rod and an adjusting mechanism, and the coiler valve is mainly used for guiding hot-rolled strip strips to enter the coiler and lead the hot-rolled strip strips to the background coiler for transition. After the valve plate is opened, the lifting height of the bottom of the front end exceeds a rolling horizontal line, the gap between the valve plate and the pinch roll above the valve plate has no requirement, when thin strip steel with the specification of less than 3mm is rolled, 4 to 6 times of strip steel is wound on the pinch roll every year to influence production (3 hours/time), and aiming at the condition, the gap between the valve plate and the upper pinch roll is required to be 1mm when the roll gap of the pinch roll is 0 mm.
The valve clearance adjusting mechanism of the existing hot rolling coiler is designed to be fixed above a valve plate, two sides of the adjusting mechanism are respectively provided with a group of adjusting gasket groups and stop blocks respectively fixed on a pinch roll rack, the thickness of the adjusting gasket is not known directly due to the fact that the position of the adjusting mechanism is in a functional relation with the clearance between the valve plate and an upper pinch roll, the thickness of the needed gasket is required to be calculated according to the diameter of a pinch roll replacing a machine or obtained by a CAD drawing method for adjustment, but the actual situation is usually that the thickness of the needed gasket is not consistent by using a calculation method or the CAD drawing method due to abrasion of parts such as a valve connecting rod pin shaft hole, a pin shaft, a brake block, a valve inner hole and the like, and field adjusting personnel have to increase and decrease the gasket for adjustment for many times; the hydraulic control valve handle valve is required to be opened and closed for multiple times in the process of adding and subtracting the gasket for each time in order to ensure the safety of personnel; the adjustment can be completed by 3 persons and 1 hour; the adjustment speed is slow, so that the overhaul time is long, and the high-efficiency production of a hot rolling plant is seriously restricted. According to statistics, the pinch roll of the hot rolling line is replaced for more than 40 times every year; the valve clearance time of the recoiling machine is adjusted for 40 hours/year all the year, the production time of a hot rolling production line is seriously wasted, and the high-efficiency production requirement of the production line cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hot rolling coiling machine valve clearance quick adjustment device, single can reach the purpose in accurate, quick regulation hot rolling coiling machine valve clearance, reduces maintainer intensity of labour, ensures personal safety, solves the problem that exists among the background art.
The technical scheme of the utility model is that:
a quick adjusting device for valve clearance of a hot rolling coiler comprises an upper pinch roll, a lower pinch roll, a pinch roll rack, a valve hydraulic cylinder fixed on the pinch roll rack, a lower pinch roll inclined guide plate and a valve plate, wherein the lower pinch roll inclined guide plate and the valve plate are arranged at outlets of the upper pinch roll and the lower pinch roll; the adjusting block is fixed on the pinch roll frame through a bolt, the adjusting screw rod is in threaded connection with the adjusting block, the lower end of the adjusting screw rod is tightly attached to the stop block with the stop block valve connecting rod, the stop gasket is sleeved in the upper end of the adjusting screw rod, and nuts are arranged at two ends of the adjusting screw rod.
And an adjusting block stop block matched with the adjusting block is arranged on the pinch roll rack.
The adjusting block is a rectangular block, the adjusting block stop block is a U-shaped block matched with the adjusting block, and the adjusting block stop block is fixed on the pinch roll frame.
The adjusting block is fixed on the pinch roll rack through four bolts.
And the adjusting screw rod is provided with a stop groove matched with the stop gasket.
The beneficial effects of the utility model are that: the structure is simple, the damage is not easy, and the purpose of accurately and rapidly adjusting the valve clearance of the hot rolling coiler can be achieved by one person; the labor intensity of maintainers is reduced, and the personal safety is guaranteed; creating conditions for the high-efficiency production of a hot rolling production line.
Drawings
FIG. 1 is a schematic diagram of the background art;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is a schematic view of an adjusting block of the present invention;
FIG. 6 is a schematic view of an adjusting block of the present invention;
FIG. 7 is a schematic view of the adjusting screw of the present invention;
FIG. 8 is a schematic view of a screw retaining washer according to the present invention;
FIG. 9 is a front view of the valve link with the stop block of the present invention;
FIG. 10 is a top view of the valve link with the stop block according to the present invention;
FIG. 11 is a part view of the safety pin of the shutter plate of the present invention;
in the figure: an upper pinch roll 1; a lower pinch roll 2; a pinch roll stand 3; a valve hydraulic cylinder 4; a lower pinch roll inclined guide plate 5; a shutter plate 6; a valve connecting rod 7 with a stop block; a shear pin 8; an adjusting block 9; adjusting the screw rod 10; a nut 11; an adjusting block stopper 12; a stopper spacer 13; a pin 14; a shutter link 15; adjusting the shim packs 16; a gasket 17; a brake shoe 18.
Detailed Description
The invention will be further explained by way of example with reference to the accompanying drawings.
Referring to the attached drawings 3-11, the device for quickly adjusting the valve clearance of the hot rolling coiler comprises an upper pinch roll 1, a lower pinch roll 2, a pinch roll frame 3, a valve hydraulic cylinder 4 fixed on the pinch roll frame 3, a lower pinch roll inclined guide plate 5 and a valve plate 6 which are arranged at the outlets of the upper pinch roll 1 and the lower pinch roll 2, and further comprises a valve connecting rod 7 with a stop block, a safety pin 8, an adjusting block 9, an adjusting screw 10, a nut 11 and a stop gasket 13, wherein the lower end of the valve connecting rod 7 with the stop block is provided with the stop block, the upper end of the valve connecting rod 7 with the stop block is connected with the cylinder rod of the valve hydraulic cylinder 4 through a connecting pin shaft 14, the lower end of the valve connecting rod 7 with the stop block is connected with a lifting lug on the valve plate 6 through a connecting pin shaft 14, the stop block of the valve connecting rod 7 with the stop block is provided with a jack matched with the safety pin 8, and the pinch roll frame 3 is provided with two jacks which are arranged up and down and matched with the safety pin 8; an adjusting block 9 is fixed on the pinch roll frame 3 through a bolt, an adjusting screw rod 10 is in threaded connection with the adjusting block 9, the lower end of the adjusting screw rod 10 is tightly attached to a stop block with a stop block valve connecting rod 7, a stop gasket 13 is sleeved in the upper end of the adjusting screw rod 10, and nuts 11 are arranged at two ends of the adjusting screw rod 10.
In this embodiment, fig. 1 and fig. 2 show a valve adjusting mechanism of a hot rolling coiler in the background art, the upper end and the lower end of a valve connecting rod 15 are respectively connected to a cylinder rod of a valve hydraulic cylinder 4 fixed on a pinch roll frame 3 and a lifting lug of a valve plate 6 through a connecting pin 14, the adjusting mechanism is fixed above the valve plate 6, and two sides of the adjusting mechanism are respectively provided with a group of adjusting shim packs 16 and brake blocks 18 respectively fixed on the pinch roll frame 3. After the pinch roll finishes replacing and adjusting the shim group 16 each time, the cylinder rod of the valve hydraulic cylinder 4 is required to be lifted, the adjusting shim group 16 is enabled to be in contact with and tightly pressed against a shim 17 fixed below the side of a brake block 18, then a clearance between the upper pinch roll 1 and the valve plate 6 is measured by using a feeler gauge, after each measurement, the cylinder rod of the valve hydraulic cylinder 4 is required to extend out, the valve plate 6 descends, the front end of the valve plate is enabled to be in contact with the inclined guide plate 5 behind the lower pinch roll 2, then the hydraulic hand valve is closed, the shim of the shim group 16 is added and reduced, and the gap between the upper pinch roll 1 and the valve plate 6 can be enabled to be 1mm only by repeating adjustment actions of opening and closing the hydraulic valve, measuring the clearance, increasing and reducing the shim for many times, the adjusting speed is low, and the overhaul time is long.
Fig. 3 and 4 show the device for rapidly adjusting the valve clearance of the hot rolling coiler of the utility model, the upper end and the lower end of the valve connecting rod 7 with the stop block are respectively connected and fixed on the cylinder rod of the valve hydraulic cylinder 4 on the pinch roll frame 2 and the lifting lug of the valve plate 6 through the connecting pin shaft 14, and the stop block of the valve connecting rod 7 with the stop block is provided with a safety pin jack; the adjusting block 9 is a rectangular block and is fixed on the pinch roll rack 3 through four bolts, and the adjusting block stop block 12 is a U-shaped block, clamps the outer side of the adjusting block 9 and is fixedly welded on the pinch roll rack 3; an adjusting screw rod 10 with a stop groove at the upper end is screwed into an inner hole thread formed on the adjusting block 9, two nuts 11 are respectively screwed into the upper end and the lower end of the adjusting screw rod 10, a stop gasket 13 is sleeved into the upper end part of the adjusting screw rod 10 and is positioned between the adjusting block 9 and the upper nut, and two jacks matched with the safety pin 8 when the valve plate 6 is at the high position and the low position are formed in the pinch roll rack 3.
When the gap between the upper pinch roll 1 and the valve plate 6 is adjusted after the pinch roll is replaced each time, a prepared long-distance safe position of a long flexible steel strip with the thickness of 1mm is plugged between the pinch roll 1 and the valve plate 6 in advance, then a cylinder rod of a valve hydraulic cylinder 4 is contracted, the valve plate 6 is lifted, the flexible steel strip is clamped between the flexible steel strip and the upper pinch roll 1, and then an adjusting lead screw 10 is adjusted, so that the lower end of the adjusting lead screw is tightly attached to a valve connecting rod 7 stop block with a stop block; and respectively fastening an upper nut 11 and a lower nut 11, vertically knocking down the stop washer 13 on the outer side part of the adjusting block 9, extending the cylinder rod of the valve hydraulic cylinder 4, lowering the valve plate 6, and taking away the flexible steel strip, namely successfully adjusting.
As can be seen from comparison of the figures 1, 2, 3 and 4, the valve connecting rod 7 with the stop block has the functions of connecting the valve hydraulic cylinder 4 and the valve plate 6, and the safety pin 8 jack arranged in the stop block is respectively matched with two holes arranged on the pinch roll frame 2 for use, so that the safety problem of operators nearby due to the fact that the position of the valve plate 6 is changed without closing the valve hydraulic cylinder 4 can be avoided. The adjusting block 9 is fixed on the pinch roll rack 3 through a bolt, so that the adjusting block is firmly fixed, the adjusting block stop block 12 clamps the outer side of the adjusting block 9 and is fixedly welded on the pinch roll rack 3, so that the adjusting block 9 is not easy to loosen after being subjected to axial force, and the purpose of adjusting the clearance can be quickly and accurately achieved by adjusting the adjusting lead screw 10 and matching with a flexible steel strip. After the adjustment of the adjusting screw rod 10 is finished, the nuts 11 at the upper end and the lower end are fastened to prevent the adjusting screw rod 10 from rotating, and the stop gasket 13 is vertically knocked down on the outer side part of the adjusting block 9, so that production accidents caused by the change of the valve gap due to the rotation of the adjusting screw rod 10 caused by impact vibration can be avoided. The thickness of the flexible steel strip is 1mm, namely the gap between the pinch roll 1 and the valve plate 6 is 1mm.
The invention has simple structure, firm fixation, difficult abrasion and corrosion and long service life; the valve clearance of the hot rolling coiler can be adjusted conveniently and quickly. By using the device on the 2250 hot rolling production line, the purpose of accurately and quickly adjusting the valve clearance of the hot rolling coiler can be achieved by a single person for 5 minutes, the labor intensity of maintainers is reduced, the personal safety is guaranteed, the expected effect is achieved, and conditions are created for efficient production of the whole production line.
Claims (5)
1. The utility model provides a hot rolling coiler valve clearance quick adjustment device, contains pinch roll (1), pinch roll (2), pinch roll frame (3) down, fixes valve pneumatic cylinder (4) on pinch roll frame (3) and sets up at last pinch roll (1) and pinch roll oblique baffle (5) and valve board (6) down that pinch roll (2) exported down, its characterized in that: the pinch roll comprises a valve connecting rod (7) with a stop block, a safety pin (8), an adjusting block (9), an adjusting screw rod (10), a nut (11) and a stop gasket (13), wherein the lower end of the valve connecting rod (7) with the stop block is provided with the stop block, the upper end of the valve connecting rod (7) with the stop block is connected with a cylinder rod of a valve hydraulic cylinder (4) through a connecting pin shaft (14), the lower end of the valve connecting rod (7) with the stop block is connected with a lifting lug on a valve plate (6) through the connecting pin shaft (14), the stop block of the valve connecting rod (7) with the stop block is provided with a jack matched with the safety pin (8), and a pinch roll frame (3) is provided with two jacks which are vertically arranged and matched with the safety pin (8); adjusting blocks (9) are fixed on a pinch roll rack (3) through bolts, an adjusting lead screw (10) is in threaded connection with the adjusting blocks (9), the lower end of the adjusting lead screw (10) is tightly attached to a stop block with a stop block valve connecting rod (7), a stop gasket (13) is sleeved at the upper end of the adjusting lead screw (10), and nuts (11) are arranged at two ends of the adjusting lead screw (10).
2. The device for rapidly adjusting the valve clearance of the hot rolling coiler according to the claim 1, characterized in that: and an adjusting block stop block (12) matched with the adjusting block (9) is arranged on the pinch roll rack (3).
3. The device for rapidly adjusting the valve clearance of the hot rolling coiler according to the claim 2, characterized in that: the adjusting block (9) is a rectangular block, the adjusting block stop block (12) is a U-shaped block matched with the adjusting block (9), and the adjusting block stop block (12) is fixed on the pinch roll rack (3).
4. The device for rapidly adjusting the valve clearance of the hot rolling coiler according to the claim 3, characterized in that: the adjusting block (9) is fixed on the pinch roll rack (3) through four bolts.
5. The device for rapidly adjusting the valve clearance of the hot rolling coiler according to the claim 1, characterized in that: and a stop groove matched with the stop gasket (13) is arranged on the adjusting screw rod (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222429992.2U CN218502968U (en) | 2022-09-14 | 2022-09-14 | Quick adjusting device for valve clearance of hot rolling coiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222429992.2U CN218502968U (en) | 2022-09-14 | 2022-09-14 | Quick adjusting device for valve clearance of hot rolling coiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218502968U true CN218502968U (en) | 2023-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222429992.2U Active CN218502968U (en) | 2022-09-14 | 2022-09-14 | Quick adjusting device for valve clearance of hot rolling coiler |
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| CN (1) | CN218502968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116422703A (en) * | 2023-06-12 | 2023-07-14 | 山西建龙实业有限公司 | Equipment precision improving method for producing extreme thin gauge coiled plate |
-
2022
- 2022-09-14 CN CN202222429992.2U patent/CN218502968U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116422703A (en) * | 2023-06-12 | 2023-07-14 | 山西建龙实业有限公司 | Equipment precision improving method for producing extreme thin gauge coiled plate |
| CN116422703B (en) * | 2023-06-12 | 2023-08-15 | 山西建龙实业有限公司 | Equipment precision improving method for producing extreme thin gauge coiled plate |
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