Coupling assembly between rolling mill motors

Abstract

A coupler assembly between rolling mill motors comprises a first crowned tooth coupler, a second crowned tooth coupler and a flange coupler, the first crowned tooth coupler and the flange coupler are installed on a first motor shaft of a first motor, and the first crowned tooth coupler is provided with a radial flange. The radial flange is fixedly connected with a connecting flange on the flange coupling through a bolt; the second crowned tooth coupling is installed on a second motor shaft of the second motor, and an outer gear sleeve of the second crowned tooth coupling is fixedly connected with an outer gear sleeve of the first crowned tooth coupling through a bolt. According to the utility model, the structure of the original coupler is improved, and the coupler assembly is adopted, so that the service life of the coupler between the motors is prolonged, the production efficiency and the transmission precision are improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of power transmission connection of transmission devices, and in particular relates to a coupling assembly between motors of a rolling mill. Background Art

[0002] When the metal strip is in the rolling equipment process, due to the need for rolling tension, the power for coiling and uncoiling is provided by two motors in series. Due to the large transmission torque and impact force, the drum gear coupling with brake between the motors is frequently damaged. According to the applicant's historical data, the online service life of the original coupling is about 9-12 months, resulting in frequent equipment failures, low power transmission accuracy, high production costs, and failure to meet the company's current production efficiency and ultimate cost reduction requirements. Utility Model Content

[0003] The purpose of the utility model is to provide a coupling assembly between rolling mill motors, improve the structure of the original coupling, and adopt the coupling assembly to extend the service life of the coupling between motors, improve production efficiency and transmission accuracy, and reduce production costs.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a coupling assembly between rolling mill motors, including a first drum gear coupling, a second drum gear coupling and a flange coupling, the first drum gear coupling and the flange coupling are installed on the first motor shaft of the first motor, and the first drum gear coupling is provided with a radial flange, the radial flange and the connecting flange on the flange coupling are fixedly connected by bolts; the second drum gear coupling is installed on the second motor shaft of the second motor, and the outer gear sleeve of the second drum gear coupling and the outer gear sleeve of the first drum gear coupling are fixedly connected by bolts.

[0005] A boss is arranged at the center of the end face of the first drum gear coupling, and a recessed groove is arranged at the center of the end face of the flange coupling. When the flange coupling and the first drum gear coupling are connected, the boss and the recessed groove are matched in convex and concave manner.

[0006] The depth of the sink is greater than the height of the boss.

[0007] After the first drum gear coupling and the flange coupling are connected, the end face of the butt end of the first drum gear coupling is flush with the end face of the first motor shaft, and a gap is left between the end face of the flange coupling and the end cover of the first motor.

[0008] After the second drum gear coupling is installed on the second motor shaft, the end face of the second drum gear coupling butt end is flush with the end face of the second motor shaft, and a gap is left between the other end and the end cover of the second motor.

[0009] The beneficial effect of the utility model is that the utility model solves the problem of large radial runout caused by large centrifugal force during the transmission of motor shaft force by connecting the flange coupling and the drum gear coupling. After trial use, the utility model not only improves the transmission accuracy, but also significantly prolongs the service life of the coupling, which is at least 3 years. The extension of the service life of the coupling and the improvement of transmission accuracy reduce the equipment failure rate, thereby improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Markings in the figure: 1, first motor, 2, flange coupling, 3, connecting flange, 4, radial flange, 5, first drum gear coupling, 6, second drum gear coupling, 7, second motor, 8, groove, 9, boss, 10, first motor shaft, 11, second motor shaft. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention in any way.

[0014] A coupling assembly between rolling mill motors, comprising a first drum gear coupling 5, a second drum gear coupling 6 and a flange coupling 2, wherein the first drum gear coupling 5 and the second drum gear coupling 6 are both drum gear couplings with brakes, the first drum gear coupling 5 is mounted on a first motor shaft 10 of a first motor 1, the second drum gear coupling 6 is mounted on a second motor shaft 11 of a second motor 7, and the outer gear sleeves of the two drum gear couplings are fixedly connected by bolts; the flange coupling 2 is mounted on the first motor shaft 10 of the first motor 1; and the end of the first drum gear coupling 5 away from its outer gear sleeve is fixedly connected to the connecting flange 3 of the flange coupling 2 by bolts.

[0015] Preferably, the first drum gear coupling 5 is provided with a radial flange 4 for connecting with the flange coupling 2 .

[0016] Preferably, a boss 9 is provided at the center of the end face of the first drum-shaped gear coupling 5, and a recessed groove 8 is provided at the center of the end face of the flange coupling 2. The inner diameter of the recessed groove 8 is the same as the outer diameter of the boss 9. When the flange coupling 2 and the first drum-shaped gear coupling 5 are connected, the boss 9 and the recessed groove 8 are matched in convex and concave manner to play a positioning role.

[0017] Furthermore, the depth of the sink 8 is greater than the height of the boss 9 .

[0018] Preferably, after the first drum-shaped gear coupling 5 and the flange coupling 2 are connected, the end face of the butt joint end of the first drum-shaped gear coupling 5 for butt joint with the second drum-shaped gear coupling 6 is flush with the end face of the first motor shaft 10, and a certain gap is left between the end face of the flange coupling 2 and the end cover of the first motor 1 to ensure the normal rotation of the first motor shaft 10 and avoid friction between the flange coupling 2 and the end cover.

[0019] Preferably, after the second drum-shaped gear coupling 6 is installed on the second motor shaft 11, the end face of the second drum-shaped gear coupling 6 for docking with the first drum-shaped gear coupling 5 is flush with the end face of the second motor shaft 11, and a certain gap is left between the other end and the end cover of the second motor 7 to ensure the normal rotation of the second motor shaft 11 and avoid friction between the second drum-shaped gear coupling 6 and the end cover.

[0020] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can be modified or replaced by equivalents with reference to the above embodiments. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of protection of the pending claims.

Claims

1. A coupling assembly between rolling mill motors, characterized in that: It includes a first drum-shaped gear coupling, a second drum-shaped gear coupling and a flange coupling. The first drum-shaped gear coupling and the flange coupling are installed on the first motor shaft of the first motor, and the first drum-shaped gear coupling is provided with a radial flange. The radial flange and the connecting flange on the flange coupling are fixedly connected by bolts; the second drum-shaped gear coupling is installed on the second motor shaft of the second motor, and the outer gear sleeve of the second drum-shaped gear coupling and the outer gear sleeve of the first drum-shaped gear coupling are fixedly connected by bolts.

2. The coupling assembly between rolling mill motors according to claim 1, characterized in that: A boss is arranged at the center of the end face of the first drum gear coupling, and a recessed groove is arranged at the center of the end face of the flange coupling. When the flange coupling and the first drum gear coupling are connected, the boss and the recessed groove are matched in convex and concave manner.

3. The coupling assembly between rolling mill motors according to claim 2, characterized in that: The depth of the sink is greater than the height of the boss.

4. The coupling assembly between rolling mill motors according to claim 1, characterized in that: After the first drum gear coupling and the flange coupling are connected, the end face of the butt end of the first drum gear coupling is flush with the end face of the first motor shaft, and a gap is left between the end face of the flange coupling and the end cover of the first motor.

5. The coupling assembly between rolling mill motors according to claim 4, characterized in that: After the second drum gear coupling is installed on the second motor shaft, the end face of the second drum gear coupling butt end is flush with the end face of the second motor shaft, and a gap is left between the other end and the end cover of the second motor.

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