CN111644472A - Precision adjusting device for pinch roll - Google Patents
Precision adjusting device for pinch roll Download PDFInfo
- Publication number
- CN111644472A CN111644472A CN201910388680.1A CN201910388680A CN111644472A CN 111644472 A CN111644472 A CN 111644472A CN 201910388680 A CN201910388680 A CN 201910388680A CN 111644472 A CN111644472 A CN 111644472A
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- China
- Prior art keywords
- screw rod
- pinch roll
- base
- adjusting device
- screw
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- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
- B21B39/10—Arrangement or installation of feeding rollers in rolling stands
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
A precision adjusting device of a pinch roll is used for metal plate strip production equipment. The adjusting device is arranged between the machine frame and the bearing seat on two sides of the lower pinch roll, the base of the adjusting device is fixed with the machine frame through a first screw, the wear-resisting plate is connected with the bearing seat through a second screw, a screw rod which is propped against the bottom of the wear-resisting plate is in threaded connection with the base, the middle of the screw rod is marked with a scale mark, and the screw rod is locked on the base through a round nut after the precision of the pinch roll is adjusted; the head of the screw is an outer hexagon, the circumference is equally divided into 100 parts by the scale mark marked in the middle, and the rest part is an external thread with the thread pitch of 2 mm; the center of the base is an internal thread with the thread pitch of 2mm, and is in threaded connection with the screw rod. The most obvious characteristics of the invention are that the position precision of both sides of the lower pinch roll can be adjusted by rotating the screw rod to lift the bearing seat, and the equal division scale lines on the screw rod enable the adjustment amount to be readable, controllable and accurate, the structure is compact, and the adjustment method is simple and efficient.
Description
Technical Field
The invention relates to the technical field of metal plate strip production equipment, in particular to a pinch roll precision adjusting device.
Background
At present, in a strip steel production and treatment line in the metallurgical industry, pinch rolls are very important devices, are usually used in pairs and are divided into upper pinch rolls and lower pinch rolls. The lower pinch roll is fixed, the upper pinch roll compresses a roll gap between the two rolls by the thrust of an air cylinder or a hydraulic cylinder, so that the metal plate strip is driven to be fed in a specified direction, and the position precision of the two sides of the lower pinch roll plays a key role in whether the metal plate strip deviates in the pinch process. The position precision adjusting method for the two sides of the lower pinch roll in the prior art mainly comprises the steps of adding a base plate between a bearing seat and a rack on the two sides of the lower pinch roll, and repeatedly grinding the thickness of the base plate to adjust the position precision of the two sides of the lower pinch roll. However, the time for dismounting, mounting, grinding and adjusting the base plate is long, the workload is large, and the normal production is influenced; in addition, the diameter of the lower pinch roll is reduced after polishing, the position of a roll gap between the upper pinch roll and the lower pinch roll is lower than the height of a strip rolling line, and the height of the roll gap is consistent with the height of the strip rolling line only by replacing a thicker base plate.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a pinch roll precision adjusting device which is convenient, quick and effective to adjust the precision of a pinch roll.
In order to achieve the purpose, the adjusting device is arranged between the machine frame and the bearing seat on two sides of the lower pinch roll, the base of the adjusting device is fixed with the machine frame through a first screw, the wear-resistant plate is connected with the bearing seat through a second screw, the screw rod which is propped against the bottom of the wear-resistant plate is in threaded connection with the base, the middle of the screw rod is marked with scale marks, and the screw rod is locked on the base through a round nut after the precision of the pinch roll is adjusted.
The head of the screw is an outer hexagon, the circumference is equally divided into 100 parts by the scale mark marked in the middle, and the rest parts are external threads with the thread pitch of 2 mm; the center of the base is an internal thread with the thread pitch of 2mm, and is in threaded connection with the screw rod.
According to the invention, the marking scale line in the middle of the screw rod equally divides the thread pitch of the external thread by 2mm into 100 parts, the external hexagon at the head of the screw rod is rotated, one grid of scale line is rotated, the screw rod axially moves by 0.02mm, the position precision of the lower pinch roll can be adjusted according to the height difference of two sides of the lower pinch roll, and then the screw rod is locked by a round nut. After the lower pinch roll is ground, the roll diameter is reduced, the number of grids corresponding to the scale lines can be calculated according to the grinding quantity of the roll diameter, and the outer hexagon is rotated, so that the position of a roll gap between the upper pinch roll and the lower pinch roll can be quickly adjusted to be consistent with the rolling line.
Compared with the prior art, the invention has the most obvious characteristics that the position precision of the two sides of the lower pinch roll can be adjusted by rotating the screw rod to lift the bearing seat, and the equal division scale lines on the screw rod enable the adjustment amount to be readable, controllable and accurate, the structure is compact, and the adjustment method is simple and efficient.
Drawings
Fig. 1 is a schematic diagram of the structure of an application of the present invention.
FIG. 2 is a schematic diagram of the present invention.
Fig. 3 is a partial schematic view of fig. 2.
In the figure: 1. an upper pinch roll; 2. a lower pinch roll; 3. a bearing seat; 4. a screw; 5. a round nut; 6. a base; 7. a first screw; 8. a wear plate; 9. a second screw; 10. scale lines; 11. a frame; 12. an external thread; 13. an internal thread; 14. an outer hexagon; 15. the diameter of the roller; 16. and (5) rolling line.
Detailed Description
As shown in figures 1, 2 and 3, the adjusting device is arranged between a frame 11 and a bearing seat 3 on two sides of a lower pinch roll 2, a base 6 of the adjusting device is fixed with the frame 11 through a first screw 7, a wear-resisting plate 8 is connected with the bearing seat 3 through a second screw 9, a screw rod 4 which is pressed against the bottom of the wear-resisting plate 8 is in threaded connection with the base 6, the middle of the screw rod 4 is marked with a scale mark 10, and after the precision of the pinch roll is adjusted, the screw rod 4 is locked on the base 6 through a round nut 5.
The head of the screw rod 4 is an outer hexagon 14, the circumference is equally divided into 100 parts by a scale mark 10 marked in the middle, and the rest part is an external thread 12 with the thread pitch of 2 mm; the center of the base 6 is provided with an internal thread 13 with the thread pitch of 2mm, and the internal thread is in threaded connection with the screw rod 4.
During adjustment, the outer hexagon 14 at the head of the screw rod 4 is rotated, one scale mark 10 is rotated, the screw rod 4 axially moves by 0.02mm, the position precision of the lower pinch roll 2 can be adjusted according to the height difference of the two sides of the lower pinch roll 2, and then the screw rod 4 is locked by the round nut 5.
If the roll diameter 15 is reduced after the lower pinch roll 2 is ground, the lattice number corresponding to the scale mark 10 can be calculated according to the grinding amount of the roll diameter 15 of the lower pinch roll 2, and the roll gap position between the upper pinch roll 1 and the lower pinch roll 2 can be quickly adjusted to be consistent with the rolling line 16 by rotating the outer hexagon 14.
Claims (2)
1. A pinch roll precision adjusting device is characterized in that: the adjusting device is arranged between a rack (11) and a bearing seat (3) on two sides of a lower pinch roll (2), a base (6) of the adjusting device is fixed with the rack (11) through a first screw (7), an abrasion-resistant plate (8) is connected with the bearing seat (3) through a second screw (9), a screw rod (4) which is arranged at the bottom of the abrasion-resistant plate (8) is in threaded connection with the base (6), scale marks (10) are marked in the middle of the screw rod (4), and the screw rod (4) is locked on the base (6) through a round nut (5) after the precision of the pinch roll is adjusted.
2. The pinch roll accuracy adjustment device of claim 1, wherein: the head of the screw rod (4) is an outer hexagon (14), the circumference is equally divided into 100 parts by a scale mark (10) marked in the middle, and the rest is an external thread (12) with the thread pitch of 2 mm; the center of the base (6) is an internal thread (13) with the thread pitch of 2mm, and is in threaded connection with the screw rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910388680.1A CN111644472A (en) | 2019-05-10 | 2019-05-10 | Precision adjusting device for pinch roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910388680.1A CN111644472A (en) | 2019-05-10 | 2019-05-10 | Precision adjusting device for pinch roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111644472A true CN111644472A (en) | 2020-09-11 |
Family
ID=72347968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910388680.1A Pending CN111644472A (en) | 2019-05-10 | 2019-05-10 | Precision adjusting device for pinch roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111644472A (en) |
-
2019
- 2019-05-10 CN CN201910388680.1A patent/CN111644472A/en active Pending
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