Calibration device for roll gap of bending roll of hot coil box of hot rolling production line
By designing bearings and locking components for fixed calibration devices, the problems of low accuracy and safety risks of existing bending roller calibration devices are solved, and a high-precision and safe calibration process is achieved, ensuring the stable operation of the hot roll box.
Patent Information
- Application Number
- CN202421029357.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-13
AI Technical Summary
The existing curved roller calibrating device has poor accuracy, high operating requirements and safety risks, which affects the stable operation of the hot roll box.
A calibration device including an upper bending roller and a lower bending roller is designed to fix the calibration blocks through bearings and locking components to ensure that the operator does not need to interfere with the calibration process, use a harder calibration block and set the arc surface to improve accuracy.
The stability, reliability and safety of the calibration device are achieved, calibration accuracy is improved, personnel safety is ensured and operational risks are reduced.
Smart Images
Figure CN222188138U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hot coil box bending roller calibration, in particular to a calibration device for the roll gap of a hot coil box bending roller of a hot rolling production line. Background Art
[0002] As an important equipment connecting the roughing mill and the finishing mill in the hot strip rolling production line, the hot coil box has a very important operation stability. The bending roller is the core technical equipment of the hot coil box. In production, the bending roller needs to be calibrated periodically to ensure the accuracy of the roller gap.
[0003] The original bending roll gap calibration device has poor accuracy, and the calibration process has high requirements for operation. It needs to be repeatedly operated for a long time during the calibration process, which has certain safety risks. Therefore, it is very important to develop a bending roll calibration device with simple structure, convenient operation and high safety for the stable operation of the entire hot coil box. Now a calibration device for the bending roll gap of the hot coil box of the hot rolling production line is provided. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a calibration device for the roll gap of the hot coil box bending roller of a hot rolling production line. The calibration device needs to be fixed during the calibration process, and the operator does not need to make any interference during the calibration process to ensure personnel safety. The calibration device is stable and reliable, and the calibration block can be made of a harder material to improve the calibration accuracy, thereby overcoming the deficiencies in the prior art.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A device for calibrating the roll gap of a hot coil box bending roll of a hot rolling production line, comprising an upper bending roll and a lower bending roll, characterized in that two ends of the lower bending roll are rotatably mounted on two bearing seats through bearings, a calibration component is mounted on one side of the two bearing seats, and a locking component is arranged on the calibration component and the two bearing seats;
[0007] The calibration component comprises two fixed blocks respectively connected to one side of two bearing seats, a block-piercing rod is connected between the two fixed blocks, and a calibration block is slidably sleeved on the block-piercing rod.
[0008] Through the above scheme, the calibration device needs to be fixed during the calibration process. The operator does not need to make any interference during the calibration process to ensure personnel safety. The calibration device is stable and reliable. The calibration block can be made of a harder material to improve the calibration accuracy.
[0009] Preferably, arc surfaces are provided on opposite sides of the calibration block, and the curvatures of the two arc surfaces on the calibration block are respectively the same as the curvatures of the arc surfaces of the upper bending roller and the lower bending roller.
[0010] Preferably, two calibration blocks are provided, and the two calibration blocks are symmetrically distributed on the penetration block rod, and there is sliding damping between the calibration blocks and the penetration block rod.
[0011] Preferably, the two calibration blocks have the same size.
[0012] Preferably, the locking assembly includes two right-angle plug-ins respectively welded to one side of the two fixed blocks, and one side of the outer wall of the two bearing seats is provided with a right-angle limit groove, and the two right-angle plug-ins are respectively plug-fitted with the two right-angle limit grooves.
[0013] Preferably, positioning pins are welded on the two right-angle limit grooves, and insertion holes are provided on the two right-angle plug-ins, and the two insertion holes are respectively plug-fitted with the two positioning pins.
[0014] The beneficial effects of the utility model are:
[0015] During the calibration process, the calibration device needs to be fixed. The operator does not need to make any interference during the calibration process to ensure personnel safety. The calibration device is stable and reliable. The calibration block can be made of a harder material to improve the calibration accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the stereoscopic structure from a first perspective of a device for calibrating the roll gap of a hot coil box bending roll in a hot rolling production line proposed by the utility model.
[0017] Figure 2 This is a schematic diagram of the stereoscopic structure from a second perspective of a device for calibrating the roll gap of a hot coil box bending roll in a hot rolling production line proposed by the utility model.
[0018] Figure 3 This is a partial structural schematic diagram of a device for calibrating the roll gap of a hot coil box bending roll in a hot rolling production line proposed by the utility model.
[0019] Figure 4 The utility model provides a device for calibrating the roll gap of the hot coil box bending roll of a hot rolling production line. Figure 2 Enlarged structural diagram at A in the middle.
[0020] In the figure: 1. upper bending roller; 2. lower bending roller; 3. bearing seat; 4. fixing block; 5. calibration block; 6. through-block rod; 7. right-angle plug-in; 8. arc surface; 9. socket; 10. right-angle limit groove; 11. positioning pin. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] Example 1, reference Figure 1-4 A device for calibrating the roll gap of a hot coil box bending roll of a hot rolling production line comprises an upper bending roll 1 and a lower bending roll 2, characterized in that two ends of the lower bending roll 2 are rotatably mounted on two bearing seats 3 through bearings, and a calibration component is installed on one side of the two bearing seats 3;
[0023] The calibration assembly includes two fixed blocks 4 respectively connected to one side of the two bearing seats 3, a through-block rod 6 is connected between the two fixed blocks 4, and a calibration block 5 is slidably sleeved on the through-block rod 6;
[0024] The calibration block 5 is provided with arc surfaces 8 on opposite sides, and the curvature of the two arc surfaces 8 on the calibration block 5 is respectively the same as the curvature of the arc surfaces of the upper bending roller 1 and the lower bending roller 2;
[0025] There are two calibration blocks 5, and the two calibration blocks 5 are symmetrically distributed on the penetration rod 6. There is a sliding damping between the calibration block 5 and the penetration rod 6, and the two calibration blocks 5 have the same size;
[0026] The calibration component and the two bearing seats 3 are provided with locking components, which include two right-angle plug-ins 7 respectively welded to one side of the two fixing blocks 4, and one side of the outer wall of the two bearing seats 3 is provided with a right-angle limit groove 10, and the two right-angle plug-ins 7 are respectively plugged into the two right-angle limit grooves 10;
[0027] Positioning pins 11 are welded on the two right-angle limit grooves 10 , and insertion holes 9 are provided on the two right-angle plug-ins 7 . The two insertion holes 9 are respectively plugged into and matched with the two positioning pins 11 .
[0028] Working principle: Before calibrating the upper bending roller 1, the hot coil box is selected as the maintenance mode, the upper bending roller 1 and the lower bending roller 2 are manually lifted to the maximum opening, the right-angle plug-ins 7 on the two fixed blocks 4 are respectively inserted into the right-angle limit grooves 10 on the two bearing seats 3, and the two locating pins 11 are respectively inserted into the two sockets 9 to realize the installation of the calibration block 5, keep the hot coil box in the maintenance mode, keep the lower bending roller 2 in the automatic mode, switch the upper bending roller 1 to the maintenance mode, select to start calibration, the upper bending roller 1 starts to press down, when the pressure on the transmission side and the operating side reaches near the set value, that is, 85bar, it means that the upper bending roller 1 and the lower bending roller 2 are already pressed against each other, and the pressure on both sides is balanced. At this time, the roller gap of the upper bending roller 1 is about 60mm, click the calibration button, at this time the roller gap of the upper bending roller 1 is 60mm, that is, the calibration is completed; manually lift the roller gap of the upper bending roller 1 to the maximum, and switch to the automatic mode, the lower bending roller 2 remains in the automatic mode and is also lifted to the maximum, and finally the calibration component is taken out.
[0029] The calibration block 5 is made into an arc shape to avoid scratching the roller surface of the bending roller during the calibration process, to avoid sliding of the calibration block when the bending roller is pressed down, and to reduce the calibration error.
[0030] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
Claims
1. A device for calibrating the roll gap of a hot coil box bending roll of a hot rolling production line, comprising an upper bending roll (1) and a lower bending roll (2), characterized in that: The two ends of the lower bending roller (2) are rotatably mounted on two bearing seats (3) via bearings, and a calibration component is mounted on one side of the two bearing seats (3). The calibration component and the two bearing seats (3) are provided with a locking component. The calibration component comprises two fixed blocks (4) respectively connected to one side of two bearing seats (3), a block-piercing rod (6) is connected between the two fixed blocks (4), and a calibration block (5) is slidably sleeved on the block-piercing rod (6).
2. A device for calibrating the roll gap of a hot coil box bending roll of a hot rolling production line according to claim 1, characterized in that: The calibration block (5) is provided with curved surfaces (8) on opposite sides, and the curvature of the two curved surfaces (8) on the calibration block (5) is respectively the same as the curvature of the curved surfaces of the upper bending roller (1) and the lower bending roller (2).
3. A device for calibrating the roll gap of a hot coil box bending roll of a hot rolling production line according to claim 2, characterized in that: Two calibration blocks (5) are provided, and the two calibration blocks (5) are symmetrically distributed on the block-piercing rod (6), and sliding damping is provided between the calibration blocks (5) and the block-piercing rod (6).
4. A device for calibrating the roll gap of a hot coil box bending roll of a hot rolling production line according to claim 3, characterized in that: The two calibration blocks (5) have the same size.
5. The device for calibrating the roll gap of the hot coil box bending roll of a hot rolling production line according to claim 1, characterized in that: The locking assembly comprises two right-angle plug-ins (7) respectively welded to one side of the two fixing blocks (4); one side of the outer wall of the two bearing seats (3) is provided with a right-angle limit groove (10); the two right-angle plug-ins (7) are respectively plug-fitted with the two right-angle limit grooves (10).
6. A device for calibrating the roll gap of a hot coil box bending roll of a hot rolling production line according to claim 5, characterized in that: Positioning pins (11) are welded on the two right-angle limit grooves (10), and insertion holes (9) are provided on the two right-angle plug-ins (7). The two insertion holes (9) are respectively plugged into and matched with the two positioning pins (11).