Working roll replacing device for spinning frame
By designing a working roller replacement device for rolling machines, the impact damage and cooling of the work rolling rolling rolling rolling rolling rolling rolling rolling rolling rolling rolling rolling rolling rolls have achieved the protection of rolls and the improvement of production safety.
Patent Information
- Application Number
- CN202420899839.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-28
AI Technical Summary
When the rolling mill fails, when the working roller is used as the transition roller, the impact of the rolling member on the working roller causes damage to the roller surface, and the residual cooling water causes uneven cooling of the rolling member surface, which increases the load on the downstream frame, which may cause accidents.
Design a type of shook rack with a working roller replacement device, use roller rollers to fix it on the bracket, and welded on the boat, installed the guards and roller wheels, which is convenient for lifting and replacement.
It reduced the impact of rolling parts on the roller surface, avoided the damage of the work roller, closed the cooling water system to avoid uneven cooling surface cooling, improved production safety and work efficiency, and reduced the consumption and processing costs of rolls.
Smart Images
Figure CN222402790U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel mill equipment, namely a working roll replacement device for a rolling mill stand, which is used to replace working rolls during rolling mill stand production to transport rolled pieces. Background Art
[0002] In the prior art, if a rolling mill fails and the rolling mill needs to be hard-thrown (the stand is empty) for production, a set of working rolls needs to be installed in the rolling mill stand that is hard-thrown (empty stand) as a transition roller to transport the rolled piece through the empty stand. A set of working rolls needs to be installed in the rolling mill stand that is hard-thrown (empty stand) as a transition roller to transport the rolled piece through the empty stand. Since the stand is in the state of hard-thrown, the main motor of the rolling mill needs to be powered off, and the working roll is only used as an idler roller. The working roll itself is heavy, and the power of the rolled piece moving forward is not enough to drive the lower working roll to rotate freely. When the rolled piece passes the empty working roll, the head of the rolled piece impacts the working roll. After a long period of impact, the working roll is severely damaged, and deep cracks will appear on the surface of the working roll. After the roll is offline, the grinding amount and grinding time increase, the work efficiency is low, the roll consumption increases, and the steel processing fee is affected. When the surface cracks extend to a certain depth, there is a hidden danger of local peeling, which may cause serious accidents. The processing time is long and the production stability is impacted. When the working roll is used as a transition roller, the working roll cooling water needs to be properly turned on. The cooling water will remain directly on the surface of the rolled piece, resulting in inconsistent cooling intensity on the upper and lower surfaces of the rolled piece, causing the rolled piece to have a serious "upward head" and having certain difficulty in biting into the downstream frame. The additional cooling also increases the temperature drop of the rolled piece. The lowered temperature increases the rolling load of the downstream frame, resulting in increased energy consumption. In severe cases, accidents may occur due to overload of the downstream frame. Utility Model Content
[0003] The utility model aims to provide a device for replacing working rolls for a slinging frame, which can avoid damage to the working rolls, in view of the above-mentioned shortcomings.
[0004] The technical solution of the utility model is: a working roll replacement device for a slinging machine frame, characterized in that a roller is selected and fixed on a bracket, the bracket for fixing the roller is welded and fixed on the pulley, a guard plate is installed in the entrance direction of the roller on the pulley, and four roller wheels are installed on the pulley base.
[0005] The advantages of the utility model are as follows: 1. The use of the device solves the problem of the impact of the workpiece on the working roller and damaging the roller when the working roller is used to fill the frame as a transition roller. Since the device itself is equipped with a roller, which is small in size and light in weight, the normal forward movement force of the workpiece is sufficient to drive the roller to rotate. The workpiece smoothly passes through the empty frame through the transition of the device, reducing the impact on the roller surface, which can improve the rolling stability, will not increase the consumption of rollers, reduce the labor intensity of grinding workers, save steel processing fees, and reduce the consumption of rollers. 2. The device is convenient for lifting and can make full use of the existing working roller changing cylinder to push it into or pull it out of the mill. Since the device is convenient, the existing roller changing device can be directly used to push and pull it into and out of the mill, which will not increase the labor intensity of workers and will not affect work efficiency. The operation is simple, convenient and fast. 3. When the device is used to throw the frame (empty), the cooling water of the working roller can be turned off, which effectively avoids the problem of excessive cooling intensity of the workpiece and improves production safety.
[0006] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a simplified structural diagram of the utility model.
[0008] Figure 2 yes Figure 1 Top view of the structural diagram. DETAILED DESCRIPTION
[0009] See also Figure 1 , 2 The names of the parts are as follows: roller 1, bracket 2, pulley 3, guard plate 4, roller wheel 5.
[0010] See also Figure 1 , 2 , a device for replacing working rolls for a slinging stand, select a used roller 1, fix it on a bracket 2, use 160# channel steel and round steel to weld a pulley 3, weld the bracket 2 for fixing the roller 1 on the pulley 3, install a guard plate 4 on the pulley 3 in the direction of the entrance of the roller 1, and install four roller wheels 5 on the base of the pulley 3. Usage: When the slinging stand needs to be emptied for production, hang the device on the roller table of the working roll changing platform, push it into the rolling mill with the working roll changing hydraulic cylinder, lock the entrance and exit of the working side of the pulley 3 with the working roll locking device on the frame, and replace the working roll, and transport the rolled piece to the downstream frame through the roller 1 on the device.
[0011] The above description is only a specific implementation of the present utility model, and various examples do not constitute a limitation on the essential content of the present utility model.
Claims
1. A working roll replacement device for a slinging stand, characterized in that A roller (1) is selected and fixed on a bracket (2), the bracket (2) for fixing the roller (1) is welded and fixed on a pulley (3), a guard plate (4) is installed on the pulley (3) in the direction of the entrance of the roller (1), and four roller wheels (5) are installed on the base of the pulley (3).