Roller bar dismounting tool for heat treatment furnace

Abstract

The utility model relates to the technical field of aluminum alloy hub manufacturing, and discloses a heat treatment furnace roller dismounting tool which comprises a frame body, the height of the frame body corresponds to a mounting hole position of a roller, an auxiliary sleeve used for being connected with the roller is movably supported on the frame body, the tail end of the auxiliary sleeve is connected with a handle used for handheld operation, and the tail end of the auxiliary sleeve is fixedly connected with the frame body. And the front end of the auxiliary sleeve is inserted and matched with the roller. The auxiliary sleeve is arranged to be connected with the roller in an inserted mode, the roller is disassembled and assembled under the supporting effect of the frame body, the problems that labor intensity is high and operation efficiency is low when an operator manually disassemble and assemble the roller through pliers are solved, and operation risks such as scalding and heatstroke are eliminated; and meanwhile, in the roller dismounting and mounting process, an operator can execute dismounting and mounting operation far away from the roller on the periphery of the heat treatment furnace, so that roller maintenance can be carried out without shutdown waiting for the heat treatment furnace to be cooled to 150-200 DEG C, the shutdown time of the heat treatment furnace is shortened, and the production efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy wheel manufacturing technology, and in particular to a tool for disassembling and assembling heat treatment furnace rollers. Background Technology

[0002] After aluminum alloy wheels are cast, they need to undergo heat treatment in a heat treatment furnace. The wheel hubs move continuously in and out of the furnace via a conveyor roller system composed of spaced-apart rollers. In actual production, issues such as roller deformation and damage often occur, causing the wheel hubs to jam or even flip in the furnace, preventing the entire furnace from operating normally. In such cases, it is necessary to remove the damaged or deformed rollers to troubleshoot the problem. However, the temperature inside the heat treatment furnace is typically around 540 degrees Celsius, making timely repairs impossible. The furnace must be shut down until the temperature drops to around 150 to 200 degrees Celsius before repairs can be carried out. This cooling process usually takes more than 5 hours, severely impacting preceding and subsequent production and hindering production progress. Furthermore, workers disassembling and installing rollers in a high-temperature environment using pliers are physically demanding, inefficient, and pose risks of burns and heatstroke.

[0003] Therefore, developing a tool for disassembling and assembling heat treatment furnace rollers for practical production is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this utility model is to provide a tool for disassembling and assembling rollers in a heat treatment furnace, in order to solve the problems of high manual labor intensity, low work efficiency, and impact on production progress during the disassembly and assembly of rollers in existing wheel hub heat treatment furnaces, as well as the risks of burns and heatstroke.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A tool for disassembling and assembling rollers in a heat treatment furnace includes a frame, the height of which is set to correspond to the mounting holes of the rollers. An auxiliary sleeve for connecting the rollers is movably supported on the frame. A handle for hand operation is connected to the tail end of the auxiliary sleeve, and the front end of the auxiliary sleeve is inserted into the roller.

[0007] Preferably, the auxiliary sleeve has a locking pin hole at its front end, and the roller has a fixing hole corresponding to the locking pin hole, and the pin can pass through the locking pin hole and the fixing hole in sequence.

[0008] Preferably, the disassembly and assembly tool further includes a clamping mechanism for clamping and supporting the roller bar. The clamping mechanism includes a clamping frame, on which a plurality of V-shaped rollers are rotatably connected and arranged opposite each other, and a clamping channel for axially rolling clamping the roller bar is formed between the oppositely arranged V-shaped rollers.

[0009] Preferably, the clamping mechanism further includes a mounting base for connecting to the heat treatment furnace, and the clamping frame is rotatably connected to the fixed base, so that the pitch angle of the roller bar that is rolled and clamped on the clamping channel is adjustable, so that the end of the roller bar is aligned with its mounting hole.

[0010] Preferably, a hand-cranked reducer is fixedly mounted on the mounting base corresponding to the clamping frame, and the output end of the hand-cranked reducer is connected to the rotating shaft of the clamping frame. The hand-cranked reducer adopts a worm gear transmission method.

[0011] Preferably, a star-shaped bracket is rotatably connected to the frame, and the star-shaped bracket is provided with several support arms of different lengths around its circumference, with support rollers connected to the tail ends of the support arms respectively.

[0012] Preferably, a second hand-cranked reducer is provided on the frame corresponding to the star-shaped bracket, and the output end of the second hand-cranked reducer is connected to the central shaft of the star-shaped bracket.

[0013] The beneficial effects of this utility model are as follows: By setting an auxiliary sleeve to connect the rollers and performing roller disassembly and assembly operations under the support of the frame, this utility model improves the problem of high labor intensity and low work efficiency of manual disassembly and assembly of rollers by operators using pliers, and eliminates the risks of burns, heatstroke and other work risks; at the same time, during the disassembly and assembly of rollers, operators can perform disassembly and assembly operations away from the rollers on the periphery of the heat treatment furnace, so there is no need to stop the machine and wait for the heat treatment furnace to cool down to 150 to 200 degrees Celsius before roller maintenance can be carried out, shortening the downtime of the heat treatment furnace and ensuring production efficiency; Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the clamping mechanism in this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the frame in this utility model.

[0018] In the diagram: 10--Frame; 11--Star bracket; 12--Support arm; 13--Support roller; 14--Second hand-cranked reducer; 20--Roller; 30--Auxiliary sleeve; 31--Handle; 32--Locking pin hole; 40--Clamping mechanism; 41--Clamping frame; 42--V-type roller; 43--Mounting base; 44--Hand-cranked reducer; 45--Shaft. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] like Figure 1-3 As shown, a tool for disassembling and assembling rollers in a heat treatment furnace includes a frame 10. The height of the frame 10 corresponds to the mounting hole position of the roller 20. An auxiliary sleeve 30 for connecting the roller 20 is movably supported on the frame 10. The tail end of the auxiliary sleeve 30 is connected to a handle 31 for hand operation, and the front end of the auxiliary sleeve 30 is inserted into the roller 20. When replacing the damaged roller 20, first remove the transmission structure at the end of the roller 20 located outside the heat treatment furnace to fully expose the inner hole of the roller 20. Move the frame 10 to the installation hole of the roller 20 on the side of the heat treatment furnace. With the support of the frame 10, hold the handle 31 and insert the auxiliary sleeve 30 into the inner hole of the roller 20 to complete the fixed connection between the auxiliary sleeve 30 and the roller 20. At this time, pull the handle 31 backward to drag the roller 20 out of the heat treatment furnace with the support of the frame 10 to complete the disassembly of the roller 20. When installing the roller 20, first connect and fix the new roller 20 to the auxiliary sleeve 30, and with the support of the frame 10, hold the handle 31 and push the roller 20 into the installation hole to complete the replacement of the roller 20.

[0021] This embodiment uses an auxiliary sleeve 30 to connect the roller 20, and the roller 20 is disassembled and assembled under the support of the frame 10. This improves the problem of high labor intensity and low work efficiency of manually disassembling and assembling the roller 20 with pliers. At the same time, during the disassembly and assembly of the roller 20, the operator can perform the disassembly and assembly work away from the roller 20 outside the heat treatment furnace. Therefore, there is no need to stop the machine and wait for the heat treatment furnace to cool down to 150 to 200 degrees Celsius before the roller maintenance can be carried out, which shortens the downtime of the heat treatment furnace and ensures production efficiency.

[0022] Preferably, the auxiliary sleeve 30 has a locking pin hole 32 at its front end, and the roller 20 has a fixing hole corresponding to the locking pin hole 32. The pin can pass through the locking pin hole 32 and the fixing hole in sequence to complete the connection and locking between the auxiliary sleeve 30 and the roller 20, ensuring the reliable connection between the auxiliary sleeve 30 and the roller 20.

[0023] Preferably, the disassembly and assembly tool further includes a clamping mechanism 40 for clamping and supporting the roller 20. The clamping mechanism 40 includes a clamping frame 41, on which a plurality of V-shaped rollers 42 are rotatably connected and arranged opposite each other. The opposing V-shaped rollers 42 form a clamping channel for axially rolling clamping the roller 20. In use, the clamping mechanism 40 is fixedly connected to the end of the roller 20 on the heat treatment furnace. During the disassembly and assembly operation, the roller 20 enters and exits the heat treatment furnace through the clamping channel formed by the V-shaped rollers 42, which improves the stability of the disassembly and assembly operation of the roller 20.

[0024] Preferably, the clamping mechanism 40 further includes a mounting base 43 for connecting to the heat treatment furnace. The clamping frame 41 is rotatably connected to the fixed base, so that the pitch angle of the roller 20 rolled and clamped on the clamping channel is adjustable. During the installation process, the pitch angle of the roller 20 to be installed can be adjusted by adjusting the rotation angle of the clamping frame 41, which makes it easier for the end of the roller 20 to be aligned with its mounting hole and improves the installation efficiency.

[0025] Preferably, a hand-cranked reducer 44 is fixedly mounted on the mounting base 43 corresponding to the clamping frame 41. The output end of the hand-cranked reducer 44 is connected to the rotating shaft 45 of the clamping frame 41. By cranking the handle of the hand-cranked reducer 44, the rotating shaft 45 can be rotated, thereby adjusting the tilt angle of the clamping frame 41 and thus adjusting the pitch angle of the roller 20 for quick alignment with the mounting holes of the roller 20. The hand-cranked reducer 44 adopts a worm gear transmission method, which enables the output end of the hand-cranked reducer 44 to have a self-locking function for the rotation angle, thereby automatically locking the pitch angle of the roller 20.

[0026] Preferably, a star-shaped bracket 11 is rotatably connected to the frame 10. The star-shaped bracket 11 is circumferentially provided with several support arms 12 of varying lengths, and the tail ends of the support arms 12 are respectively connected to support rollers 13. During disassembly and assembly operations, the auxiliary sleeve 30 and the roller bar 20 will be rolled and connected to the support rollers 13 respectively, and the disassembly and assembly will be carried out smoothly under the support of the support rollers 13.

[0027] Preferably, a second hand-cranked reducer 14 is provided on the frame 10 corresponding to the star-shaped support 11. The output end of the second hand-cranked reducer 14 is connected to the central shaft of the star-shaped support 11. By cranking the handle of the second hand-cranked reducer 14, the central shaft is rotated, allowing support arms 12 of different lengths to be rotated above the frame 10 to meet the needs of different support heights. The second hand-cranked reducer 14 also adopts a worm gear transmission method to prevent the star-shaped support 11 from accidentally overturning, ensuring safe and stable operation.

[0028] The above-disclosed embodiments are merely specific examples of this utility model, but this utility model is not limited thereto. For those skilled in the art, any modifications made without departing from the principle of this utility model should be considered as protected by this utility model.

Claims

1. A tool for disassembling and assembling rollers in a heat treatment furnace, characterized in that: Includes a frame (10), the height of which is set to correspond to the mounting hole position of the roller (20), and an auxiliary sleeve (30) for connecting the roller (20) is movably supported on the frame (10). The tail end of the auxiliary sleeve (30) is connected to a handle (31) for hand operation, and the front end of the auxiliary sleeve (30) is inserted into the roller (20).

2. The tool for disassembling and assembling rollers in a heat treatment furnace according to claim 1, characterized in that: The auxiliary sleeve (30) has a locking pin hole (32) at its front end, and the roller (20) has a fixing hole corresponding to the locking pin hole (32). The pin can pass through the locking pin hole (32) and the fixing hole in sequence.

3. The tool for disassembling and assembling rollers in a heat treatment furnace according to claim 1, characterized in that: The disassembly and assembly tool also includes a clamping mechanism (40) for clamping and supporting the roller (20). The clamping mechanism (40) includes a clamping frame (41). Several V-shaped rollers (42) are rotatably connected to and arranged opposite to each other on the clamping frame (41). A clamping channel for axially rolling clamping the roller (20) is formed between the oppositely arranged V-shaped rollers (42).

4. The tool for disassembling and assembling rollers in a heat treatment furnace according to claim 3, characterized in that: The clamping mechanism (40) also includes a mounting base (43) for connecting to the heat treatment furnace. The clamping frame (41) is rotatably connected to the fixed base so that the pitch angle of the roller (20) that is rolled and clamped on the clamping channel is adjustable so that the end of the roller (20) is aligned with its mounting hole.

5. The tool for disassembling and assembling rollers in a heat treatment furnace according to claim 4, characterized in that: A hand-cranked reducer (44) is fixedly installed on the mounting base (43) corresponding to the clamping frame (41). The output end of the hand-cranked reducer (44) is connected to the rotating shaft (45) of the clamping frame (41). The hand-cranked reducer (44) adopts a worm gear transmission method.

6. The tool for disassembling and assembling rollers in a heat treatment furnace according to claim 1, characterized in that: A star-shaped bracket (11) is rotatably connected to the frame (10). The star-shaped bracket (11) is provided with several support arms (12) of different lengths around its circumference. The tail ends of the support arms (12) are respectively connected to support rollers (13).

7. The tool for disassembling and assembling rollers in a heat treatment furnace according to claim 6, characterized in that: A second hand-cranked reducer (14) is provided on the frame (10) corresponding to the star bracket (11), and the output end of the second hand-cranked reducer (14) is connected to the central shaft of the star bracket (11).

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