Auxiliary device for repairing hollow shaft of speed reducer of continuous casting withdrawal and straightening machine

Abstract

The utility model relates to the technical field of hollow shaft repairing, in particular to an auxiliary device for repairing a hollow shaft of a speed reducer of a continuous casting withdrawal and straightening machine, which comprises a frame, a motor and a control box for controlling the motor to start and stop, the motor is fixed inside the frame, an output shaft of the motor extends out of one side of the frame, and a shaft sleeve is sleeved on the output shaft of the motor. A limiting ring is integrally formed on the periphery of the end, close to the motor body, of the shaft sleeve, the shaft sleeve is sleeved with a to-be-repaired hollow shaft, and a detachable pressing plate is arranged on the end face of an output shaft of the motor, the structure is simple, operation is convenient, the to-be-repaired hollow shaft is fixed to the output shaft of the motor through the shaft sleeve, and the motor rotates to drive the to-be-repaired hollow shaft to rotate at a constant speed; grinding tools such as a board file and abrasive cloth are tightly attached to the surface of the hollow shaft for polishing and grinding, the maintenance speed is increased, the maintenance quality is improved, a special maintenance machine tool does not need to be purchased, and cost consumption is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hollow shaft repair technical field, and specifically is a kind of continuous casting straightening machine speed reducer hollow shaft repair auxiliary device. BACKGROUND

[0002] In metallurgical industry, many equipment transmission parts use hollow shaft connection more, especially the assembly between continuous casting straightening machine roller and speed reducer, due to the long-term work of straightening machine, the outer surface of hollow shaft matched with oil seal friction surface of low-speed shaft of speed reducer will produce certain abrasion, causing speed reducer to leak oil, and the use of special repair machine bed for external repair has long cycle and high cost, and the speed of manual repair of hollow shaft is slow, and manual rotation of hollow shaft is carried out during repair process to repair and polish the whole body, which can easily cause uneven polishing of the whole body of hollow shaft, and the surface is not smooth, so that the smoothness cannot be reached, and oil leakage will occur after on-line, so a kind of hollow shaft surface polishing and grinding auxiliary device needs to be made to solve this problem. UTILITY MODEL CONTENTS

[0003] The utility model aims at solving the above-mentioned problems, and provides a kind of continuous casting straightening machine speed reducer hollow shaft repair auxiliary device.

[0004] The utility model solves the problems by using the following technical scheme:

[0005] A kind of continuous casting straightening machine speed reducer hollow shaft repair auxiliary device, including frame, motor and the control box of control motor start-stop, the motor is fixed in the inside of frame, the output shaft of motor projects to the outside of one side of frame, sleeve is equipped on the output shaft of motor, and the outer periphery of one end of sleeve close to motor main body is integrally formed with limit ring, sleeve is equipped on the output shaft end surface of motor with detachable pressing plate.

[0006] Further, the output shaft end surface of motor is provided with internal thread hole, the through hole is set up in the pressing plate, and the output shaft of motor is fixed by the bolt of setting;It is convenient to disassemble and assemble pressing plate, and different hollow shafts to be repaired are replaced for maintenance.

[0007] Further, the inner diameter and outer diameter of the sleeve are respectively matched with the diameter of the output shaft of motor and the diameter of the shaft hole of the hollow shaft to be repaired;Different sizes of sleeve can be made according to the diameter of the shaft hole of the hollow shaft to be repaired and the diameter of the output shaft of motor, so that hollow shafts of different sizes can be repaired and used.

[0008] Further, the bottom of frame is provided with support leg, and the height of support leg is adjustable;The overall height of device can be raised by support leg, so that the height of hollow shaft to be repaired is adjusted to the comfortable height of artificial repair.

[0009] Further, the control box is arranged on the top of the frame, start button and stop button are arranged on the control box door, a frequency converter for controlling the rotating speed of the motor is further arranged in the control box, and high speed adjusting button and low speed adjusting button are further arranged on the control box door; the motor start and stop and the rotating speed of the motor are facilitated to control.

[0010] Compared with the prior art, the utility model has the outstanding characteristics that:

[0011] The utility model discloses simple structure, convenient operation, through the shaft sleeve with the hollow shaft of being repaired fixed on the output shaft of motor, in through the frequency converter adjustment motor rotating speed, make the hollow shaft of being repaired can rotate at uniform speed, utilize plate file, abrasive cloth and so on polishing grinding tool close hollow shaft surface and carry out polishing grinding, accelerate the maintenance speed, improve the maintenance quality, need not purchase special maintenance machine tool, save the cost consumption. ACCURACY OF DRAWINGS

[0012] Fig. 1 It is the main body structure schematic drawing of the utility model embodiment;

[0013] Fig. 2 It is the assembly structure schematic drawing of the shaft sleeve and the hollow shaft of being repaired of the utility model embodiment;

[0014] Marked as in the drawing: control box 1, frame 2, motor 3, shaft sleeve 4, hollow shaft 5 of being repaired, pressing plate 6, start button 11, stop button 12, high speed adjusting button 13, low speed adjusting button 14, limit ring 41. DETAILED DESCRIPTION

[0015] The utility model will be further explained in conjunction with the embodiment, the purpose is only in better understanding the utility model content, therefore, the example held does not limit the protection scope of the utility model.

[0016] Referring to Figs. 1-2 A kind of auxiliary device for hollow shaft repair of continuous casting straightening machine speed reducer, including frame 2, motor 3 and the control box 1 of the motor 3 start-stop, the motor 3 is fixed in frame 2 interior, the output shaft of motor 3 is explored to the outside of one side of frame 2, shaft sleeve 4 is sleeved on the output shaft of motor 3, limit ring 41 is integrally formed on the outer periphery of the end of shaft sleeve 4 close to motor 3 main part, hollow shaft 5 of being repaired is sleeved on shaft sleeve 4, detachable pressing plate 6 is arranged on the output shaft end surface of motor 3.

[0017] Further, the output shaft end surface of motor 3 is provided with an internal thread hole, the pressing plate 6 is provided with a through hole, and the pressing plate 6 is fixed with the output shaft of the motor 3 by the bolt; the pressing plate 6 is facilitated to disassemble and assemble, and different hollow shafts 5 of being repaired are replaced for maintenance.

[0018] Further, the inner diameter and the outer diameter of the shaft sleeve 4 are respectively matched with the diameter of the motor 3 output shaft and the diameter of the shaft hole of the hollow shaft 5 to be repaired; different sizes of the shaft sleeve 4 are made according to the diameter of the shaft hole of the hollow shaft 5 to be repaired and the diameter of the motor 3 output shaft, so that the hollow shafts of different sizes can be repaired and used.

[0019] Further, the bottom of the frame 2 is provided with a support leg, and the height of the support leg is adjustable; the support leg can raise the overall height of the device, so that the height of the hollow shaft 5 to be repaired is adjusted to the comfortable height for manual repair.

[0020] Further, the control box 1 is arranged on the top of the frame 2, the control box door is provided with a start button 11 and a stop button 12, the control box 1 is further provided with a frequency converter for controlling the rotating speed of the motor 3, and the control box door is further provided with a high-speed adjusting button 13 and a low-speed adjusting button 14; the start and stop of the motor 3 and the rotating speed of the motor 3 are convenient to control.

[0021] The utility model discloses simple structure, convenient operation, through the shaft sleeve, the hollow shaft to be repaired is fixed on the output shaft of motor, and the rotating speed of motor is adjusted through the frequency converter, so that the hollow shaft to be repaired can rotate at uniform speed, and the grinding tool such as plate file and abrasive cloth is used to adhere to the surface of the hollow shaft and polish and grind, so that the maintenance speed is accelerated, the maintenance quality is improved, the special maintenance machine tool is not needed to purchase, and the cost consumption is saved.

[0022] The above only is the preferred and feasible embodiment of the utility model, and does not limit the right range of the utility model, and equivalent changes that are made by applying the utility model specification and its drawings are contained in the right range of the utility model.

Claims

1. An auxiliary device for repairing the hollow shaft of a speed reducer of a continuous casting straightening machine, comprising a frame, a motor and a control box for controlling the start and stop of the motor, characterized in that: The motor is fixed inside the frame, the output shaft of the motor projects outside one side of the frame, a shaft sleeve is sleeved on the output shaft of the motor, a limiting ring is integrally formed on the outer periphery of one end of the shaft sleeve close to the motor body, a hollow shaft to be repaired is sleeved on the shaft sleeve, and a detachable pressing plate is arranged on the end face of the output shaft of the motor.

2. The auxiliary device for repairing the hollow shaft of the reducer of the continuous-casting straightening machine according to claim 1, characterized in that: An internal thread hole is formed on the end face of the output shaft of the motor, a through hole is formed on the pressing plate, and the pressing plate is fixed with the output shaft of the motor through the arranged bolts.

3. The auxiliary device for repairing the hollow shaft of the reduction gear of the continuous-casting straightening and withdrawing machine according to claim 1, characterized in that: The inner diameter and the outer diameter of the shaft sleeve are respectively matched with the diameter of the output shaft of the motor and the diameter of the shaft hole of the hollow shaft to be repaired.

4. The auxiliary device for repairing the hollow shaft of the reduction gear of the continuous-casting straightening and withdrawing machine according to claim 1, characterized in that: Supporting legs are arranged on the bottom of the frame, and the height of the supporting legs is adjustable.

5. The auxiliary device for repairing the hollow shaft of the reduction gear of the continuous-casting straightening and withdrawing machine according to claim 1, characterized in that: The control box is arranged on the top of the frame, start and stop buttons are arranged on the control box door, a frequency converter for controlling the rotating speed of the motor is further arranged in the control box, and high-speed and low-speed adjusting buttons are further arranged on the control box door.

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