Locking device capable of adjusting position of flat head sleeve of small vertical roll

Abstract

The utility model belongs to the technical field of steel rolling equipment, and provides a locking device capable of adjusting the position of a flat head sleeve of a small vertical roll, which comprises a locking screw rod, a locking nut, a two-way tensioner, a connecting snap ring, a locking chain and a chain ring, the locking screw rod is installed in a through hole of a lifting support of a spindle of the small vertical roll in a penetrating manner, the two-way tensioner is installed on the locking screw rod, and the connecting snap ring is connected with the locking chain. One end of the locking chain is connected with the two-way tensioner through the connecting clamping ring, the other end of the locking chain is connected with the locking screw rod through the chain ring, the locking chain is connected with the locking screw rod and the two-way tensioner to lock the flat head sleeve, and the locking nut is installed on the outer side of the chain ring on the locking screw rod; the utility model mainly solves the problem that the flat head sleeve and the flat head are not aligned when the small vertical roll of the finishing mill is replaced, the flat head sleeve of the main shaft is aligned with the flat head of the small vertical roll by adjusting the two-way tensioner, the small vertical roll is quickly mounted in place, and the mounting efficiency and the safety controllability of the replacement and mounting operation of the small vertical roll are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel rolling equipment, relates to a small vertical roller replacement process, and specifically is a locking device capable of adjusting the position of a flat head cover of a small vertical roller. Background Art

[0002] Finishing small vertical roller equipment, such as Figure 1 As shown in the figure, it is an important equipment of the hot rolling production line, located in front of the finishing mill. Its function is to correct the deviation of the strip and ensure that the strip is positioned at the center of the mill. It plays an important role in the rolling stability of the finishing mill. Since the small vertical roller surface is in direct contact with the strip, when the small vertical roller surface is worn beyond the standard, it will cause quality defects on the edge of the strip and batch quality accidents. For this reason, the small vertical roller needs to be replaced regularly.

[0003] At present, the replacement process of the small vertical roller is as follows: first, the opening of the small vertical roller is opened to the maximum, and the main shaft lifting cylinder drives the main shaft lifting bracket to disengage the main shaft flat head cover from the flat head of the small vertical roller; then, the entrance and exit beams and the upper and lower transition blocks are lifted out, and the opening and closing slides are polished; finally, the small vertical roller is disassembled and assembled, and the main shaft lifting cylinder moves the flat head cover back to the flat head of the small vertical roller, and the entrance and exit beams and the upper and lower transition blocks are lifted to complete the replacement of the small vertical roller.

[0004] Due to the restraining force of the main shaft on the flat head sleeve, when the flat head sleeve is docked with the flat head of the small vertical roller, the deviations of the axis line, radial stop deflection angle and fitting clearance of the two are too large, which will cause the small vertical roller to be improperly installed, which needs to be corrected. Usually, the small vertical roller replacement operation must use a special lifting device - C-type hook. The C-type hook lifting device is used to clamp the main shaft, and then a sledgehammer is used to adjust the position of the flat head sleeve. This adjustment process relies on the experience of the operator for alignment, and multiple adjustments and alignments are required, which is time-consuming and labor-intensive. At the same time, the lifting operation method has a high safety risk, and there is a risk of the lower shaft body of the main shaft coming out of the spline and injuring people. Utility Model Content

[0005] The purpose of the utility model is to provide a locking device which can adjust the position of the flat head cover of a small vertical roller. During the replacement process of the small vertical roller, if the flat head cover and the flat head are not aligned, the position of the flat head cover can be simply adjusted to quickly align the flat head of the small vertical roller, thereby shortening the operation time and reducing the safety risk of the lifting operation.

[0006] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0007] A locking device capable of adjusting the position of a flat head cover of a small vertical roller is arranged between a main shaft lifting bracket and the flat head cover of the small vertical roller equipment, and comprises a locking screw, a locking nut, a bidirectional tensioner, a connecting clip, a locking chain and a chain ring. The locking screw is installed in a through hole of the main shaft lifting bracket of the small vertical roller, the bidirectional tensioner is installed on the locking screw, one end of the locking chain is connected to the bidirectional tensioner through a connecting clip, and the other end is connected to the locking screw through a chain ring. The locking chain locks the flat head cover by being connected to the locking screw and the bidirectional tensioner, and the locking nut is installed on the outer side of the chain ring on the locking screw.

[0008] The beneficial effects of the utility model are as follows: by using the utility model, the operation time of replacing the small vertical roller can be significantly shortened, and the potential safety hazards caused by the C-hook lifting operation and manual alignment of the flat head can be eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of the small vertical roller equipment;

[0010] Figure 2 This is a schematic diagram of the structure of the utility model for small vertical roller equipment;

[0011] Figure 3 It is a structural schematic diagram of the utility model;

[0012] In the figure, 1, main shaft lifting bracket; 2, flat head cover; 3, locking screw; 4, locking nut; 5, two-way tensioner; 6, connecting clamp; 7, locking chain; 8, chain ring; 9, main shaft; 10, small vertical roller. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] A locking device capable of adjusting the position of a small vertical roller flat head cover, such as Figure 2 and Figure 3 As shown, it is arranged between the main shaft lifting bracket 1 and the flat head sleeve 2 of the small vertical roller equipment, including a locking screw 3, a locking nut 4, a two-way tensioner 5, a connecting clip 6, a locking chain 7 and a chain ring 8. The locking screw 3 is installed in the through hole of the small vertical roller main shaft lifting bracket 1, and the two-way tensioner 5 is installed on the locking screw 3. One end of the locking chain 7 is connected to the two-way tensioner 5 through the connecting clip 6, and the other end of the locking chain 7 is connected to the locking screw 3 through the chain ring 8. The locking chain 7 locks the flat head sleeve 2 by connecting with the locking screw 3 and the two-way tensioner 5, and the locking nut 4 is installed on the outer side of the chain ring 8 on the locking screw 3.

[0015] When the opening degree of the small vertical roller 4 is the largest, the flat head cover 2 enters the stopper of the main shaft lifting bracket 1. At this time, the locking device is installed, and the locking screw 3 is installed in the through hole of the small vertical roller main shaft lifting bracket 1. The two-way tensioner 5 is installed on the locking screw 3. The locking chain 7 locks the flat head cover 2 by connecting with the locking screw 3 and the two-way tensioner 5. Finally, the locking nut 4 is installed. This process ensures that the locking chain 7 tightens the flat head cover 2.

[0016] When the flat head cover 2 cannot align with the flat head, lift the spindle lifting bracket 1, remove the flat head cover 2 from the small vertical roller flat head, manually adjust the two-way tensioner 5 according to the state of the flat head during installation, adjust the position of the flat head cover 2, and reinstall the flat head cover 2 until it is in place.

Claims

1. A locking device capable of adjusting the position of a flat head cover of a small vertical roller, arranged between a main shaft lifting bracket and a flat head cover of a small vertical roller device, characterized in that: It includes a locking screw, a locking nut, a two-way tensioner, a connecting clip, a locking chain and a chain ring. The locking screw is installed in the through hole of the small vertical roller main shaft lifting bracket. The two-way tensioner is installed on the locking screw. One end of the locking chain is connected to the two-way tensioner through the connecting clip. The other end of the locking chain is connected to the locking screw through the chain ring. The locking chain locks the flat head cover by connecting with the locking screw and the two-way tensioner. The locking nut is installed on the outer side of the chain ring on the locking screw.

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