Quick replacement tool for roller way in heat treatment furnace

Abstract

Brackets of the tool are arranged on the wall of a furnace body through bolts, a push rod is located between the brackets and penetrates into the wall of the furnace body to be connected with the tail end of a roller way frame, a guide wheel set comprises an upper guide wheel and a lower guide wheel, and the upper guide wheel and the lower guide wheel are arranged on the brackets through wheel shafts. The supporting frame is arranged in front of the furnace door, the adjusting bolt is arranged on the bottom face of the supporting frame to adjust the height, the two ends of the guide rail are erected at the top end of the supporting frame and the furnace walls on the two sides of the furnace door respectively, and the sliding block is arranged on the guide rail and connected with the front end of the roller way frame. The tool overcomes the defects of the traditional in-furnace roller way replacement operation, and can effectively support and fix the roller way frame, so that the situation that a ceramic roller in a roller way is broken due to bending of the roller way frame is avoided, the cost of spare parts of the roller is greatly reduced, the operation time for replacing the roller way is greatly shortened, and the replacement operation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment maintenance, and in particular to a quick-changing tool for a roller table in a heat treatment furnace. Background Art

[0002] The rollers in the silicon steel heat treatment furnace are composed of several separate rollers. Each group of rollers is composed of a roller frame, ceramic rollers, a transmission motor, and a transmission device. Each group of rollers is a separate roller module. When a roller fails, the failed roller module must be replaced as a whole. The process of replacing the roller is to first pull out the failed roller as a whole from the heat treatment furnace body, and then reinstall the roller to be replaced into the furnace body. Since each group of rollers is composed of ceramic rollers, and the material of the ceramic rollers is relatively brittle, during the replacement process, maintenance personnel often use a pry bar to pry the roller frame for operation. Due to the lack of effective support and fixation of the roller frame, the ceramic rollers in the roller frame are easily bent and broken, the maintenance cost is significantly increased, and the replacement operation efficiency is low. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a quick-changing tool for rollers in a heat treatment furnace. The tool overcomes the defects of the traditional roller replacement operation in the furnace, can effectively support and fix the rollers, thereby avoiding the breakage of the ceramic rollers in the rollers due to bending of the rollers, greatly reducing the cost of roller spare parts, and greatly shortening the operation time of replacing the rollers, thereby improving the efficiency of the replacement operation.

[0004] To solve the above technical problems, the present invention provides a quick-change tool for rollers in a heat treatment furnace, comprising a bracket, a guide wheel group, a push rod, a slider, a guide rail, a support frame and an adjusting bolt, wherein the bracket is arranged on the furnace body wall by bolts, the push rod is located between the brackets and penetrates into the furnace body wall to connect to the tail end of the roller frame, the guide wheel group comprises an upper guide wheel and a lower guide wheel, the upper guide wheel and the lower guide wheel are arranged on the bracket by a wheel axle, and the upper guide wheel abuts against the top surface of the push rod, and the lower guide wheel abuts against the bottom surface of the push rod, the support frame is arranged in front of the furnace door, the adjusting bolt is arranged on the bottom surface of the support frame to adjust the height, the two ends of the guide rail are respectively mounted on the top of the support frame and the furnace walls on both sides of the furnace door, and the slider is arranged on the guide rail and connected to the front end of the roller frame.

[0005] Furthermore, the lower guide wheel is spaced apart from the bracket via a wheel axle and abuts against the bottom surface of the push rod.

[0006] Furthermore, the tooling also includes a push rod, the upper guide wheel is floated up and down on the bracket through a wheel axle, the push rod penetrates the wheel axle of the upper guide wheel and the front end is hinged to the furnace wall.

[0007] Furthermore, there are two push rods arranged at intervals, the front ends of the two push rods are connected to the rear end of the roller frame through positioning pins, and fixed cross bars are provided at the rear ends of the two push rods. Since the quick replacement tooling for rollers in a heat treatment furnace of the present invention adopts the above technical solution, that is, the bracket of the tooling is arranged on the furnace wall by bolts, the push rod is located between the brackets and penetrates into the furnace wall to connect the tail end of the roller frame, the guide wheel group includes an upper guide wheel and a lower guide wheel, the upper guide wheel and the lower guide wheel are arranged on the bracket through the wheel axle, and the upper guide wheel abuts against the top surface of the push rod, and the lower guide wheel abuts against the bottom surface of the push rod, the support frame is arranged in front of the furnace door, the adjustment bolts are arranged on the bottom surface of the support frame to adjust the height, the two ends of the guide rail are respectively mounted on the furnace wall at the top of the support frame and on both sides of the furnace door, and the slider is arranged on the guide rail and connected to the front end of the roller frame. The tooling overcomes the defects of the traditional roller replacement operation in the furnace, can effectively support and fix the roller frame, thereby avoiding the ceramic roller in the roller frame from breaking due to the bending of the roller frame, greatly reducing the cost of roller spare parts, and greatly shortening the operation time of replacing the roller, thereby improving the replacement operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of a quick replacement tooling for rollers in a heat treatment furnace according to the present invention; Figure 2 for Figure 1 Top view of the . DETAILED DESCRIPTION

[0009] Implementation example Figure 1 and Figure 2 As shown, the quick-changing tooling for the roller in the heat treatment furnace of the present invention comprises a bracket 1, a guide wheel group 2, a push rod 4, a slider 5, a guide rail 6, a support frame 7 and an adjusting bolt 8, the bracket 1 is arranged on the furnace wall 11 by bolts, the push rod 4 is located between the brackets 1 and penetrates into the furnace wall 11 to connect the tail end of the roller frame 12, the guide wheel group 2 comprises an upper guide wheel 21 and a lower guide wheel 22, the upper guide wheel 21 and the lower guide wheel 22 are arranged on the bracket 1 through wheel shafts 23 and 24, and the upper guide wheel 21 abuts against the top surface of the push rod 4, and the lower guide wheel 22 abuts against the bottom surface of the push rod 4, the support frame 7 is arranged in front of the furnace door 13, the adjusting bolt 8 is arranged on the bottom surface of the support frame 7 to adjust the height, the two ends of the guide rail 6 are respectively mounted on the top of the support frame 7 and the furnace wall 14 on both sides of the furnace door 13, and the slider 5 is arranged on the guide rail 6 and connected to the front end of the roller frame 12.

[0010] Preferably, the lower guide wheels 22 are spaced apart from the bracket 1 through the wheel axle 24, and abut against the bottom surface of the push rod 4. The spaced lower guide wheels can provide reliable support and guidance for the bottom surface of the push rod, avoiding jamming of the push rod when pushing or pulling.

[0011] Preferably, the tooling also includes a push rod 3, the upper guide wheel 21 is arranged on the bracket 1 to float up and down through the wheel shaft 23, the push rod 3 penetrates the wheel shaft 23 of the upper guide wheel 21 and the front end is hinged to the furnace wall 11. The push rod is used to adjust the offset when the push rod is displaced. When the push rod is offset, the upper guide wheel is lifted by the push rod, so that the push rod is completely supported and guided by the lower guide wheel. When the push rod is guided to the position by the lower guide wheel, the push rod is lowered to make the upper guide wheel abut against the top surface of the push rod.

[0012] Preferably, there are two push rods 4 arranged at intervals, the front ends of the two push rods 4 are connected to the rear ends of the roller frame 12 through positioning pins 41, and the rear parts of the two push rods 4 are provided with fixed crosspieces 42. The push rods arranged at intervals make it easier to push in and out the roller frame in the furnace, the positioning pins facilitate the connection between the push rods and the roller frame in the furnace, and the fixed crosspieces make the two push rods form a whole, which is convenient for synchronously pushing the roller frame in the furnace.

[0013] In this fixture, the bracket is bolted to the furnace wall to support the push rod. The guide wheel group provides guidance for the push rod through the upper guide wheel and the lower guide wheel. When the push rod is offset when pushing into the furnace, it can be adjusted through the top rod. The push rod is used to push in and out the roller frame in the furnace. The slider is bolted to the roller frame in the furnace, and the roller frame in the furnace can be moved smoothly through the guide rail. The height and support balance of the guide rail are achieved by the support frame and the adjustment bolts to ensure that the roller frame in the furnace is on the same horizontal line with the bottom of the furnace when it is pulled out and pushed in.

[0014] When replacing the rollers in the furnace, push the push rod, which pushes the tail of the roller frame under the guidance of the guide wheel group. The roller frame in the furnace is clamped and guided by the slider and moved out of the furnace body through the guide rail to replace the rollers in the roller frame. After the rollers are replaced, push the push rod in the opposite direction to move the roller frame into the furnace.

[0015] The tooling is reasonably designed, simple to operate, low in cost, and flexible to operate, and is suitable for the entire process of replacing the roller table in a heat treatment furnace.

[0016] This tool can be used in a narrow environment on site, and is suitable for roller replacement operations in heat treatment furnaces and similar equipment. Before replacing the roller, assemble this tool according to the assembly instructions and fix it to the roller stand. The damaged roller can be smoothly pulled out and lifted away, and the spare roller can be installed on the roller stand and pushed in smoothly, so that the roller replacement can be completed efficiently to prevent accidental damage to the ceramic roller, furnace roller insulation layer and furnace insulation layer. The purchase cost of a single ceramic roller is about 5,000 yuan, and the insulation layer of the furnace roller is about 50,000 yuan. The ceramic roller is very fragile. If the roller is not supported by this tool, it is easy to bend when it is pulled out and pushed in, which will cause accidental breakage of the ceramic roller and wear and damage of the insulation layer. In addition, the insulation layer in the furnace cannot be repaired without the overall disassembly of the heat treatment furnace. Therefore, during the roller replacement operation, this tool is used to ensure that the ceramic roller, furnace roller insulation layer and furnace insulation layer are intact, which not only improves the efficiency of maintenance operations, but also reduces the cost of spare parts, and has excellent technical effects.

Claims

1. A quick-change tool for rollers in a heat treatment furnace, characterized in that: It includes a bracket, a guide wheel group, a push rod, a slider, a guide rail, a support frame and an adjusting bolt, the bracket is arranged on the furnace body wall by bolts, the push rod is located between the brackets and penetrates into the furnace body wall to connect the tail end of the roller frame, the guide wheel group includes an upper guide wheel and a lower guide wheel, the upper guide wheel and the lower guide wheel are arranged on the bracket through a wheel axle, and the upper guide wheel abuts against the top surface of the push rod, and the lower guide wheel abuts against the bottom surface of the push rod, the support frame is arranged in front of the furnace door, the adjusting bolt is arranged on the bottom surface of the support frame to adjust the height, the two ends of the guide rail are respectively mounted on the top of the support frame and the furnace walls on both sides of the furnace door, the slider is arranged on the guide rail and connected to the front end of the roller frame.

2. The quick-change tool for rollers in a heat treatment furnace according to claim 1, characterized in that: The lower guide wheel is arranged on the bracket through a wheel axle and abuts against the bottom surface of the push rod.

3. The quick-change tool for rollers in a heat treatment furnace according to claim 1 or 2, characterized in that: The tool also includes a push rod, the upper guide wheel is floated up and down on the bracket through the wheel axle, the push rod penetrates the wheel axle of the upper guide wheel and the front end is hinged to the furnace wall.

4. The quick-change tool for rollers in a heat treatment furnace according to claim 1, characterized in that: There are two push rods arranged at intervals, the front ends of the two push rods are connected to the rear end of the roller frame through positioning pins, and fixed cross bars are arranged at the rear of the two push rods.

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