Roller carrier for welding

Abstract

The utility model discloses a roller carrier for welding, and belongs to the technical field of mechanical transmission devices. The device comprises a driven riding wheel, a motor, a coupler, a driving riding wheel, a catch wheel assembly and a track. The rails are arranged in parallel at intervals, a plurality of groups of driven riding wheels and driving riding wheels are arranged on the rails at intervals, and workpieces to be welded are placed on the driven riding wheels and the driving riding wheels; the driven riding wheel is fixed on the driven bracket, and the driven bracket is fixed on the track through a fixing pin; the driving riding wheel is fixed on the track through a driving bracket; the motor is connected with the driving riding wheel through a coupler and controls the rotating speed of the driving riding wheel. And the motor is fixed on the track through a motor bracket. The catch wheel assembly is used for limiting the position of the to-be-welded workpiece. According to the roller carrier for welding, the rotating speed of the driving riding wheel is controlled through the motor, and the defect that in a traditional roller carrier, the rotating speed is controlled through friction force between a workpiece to be welded and the driving riding wheel is overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical transmission devices, and particularly relates to a roller rack for welding. Background Art

[0002] A roller rack is a device used for welding circular or conical workpieces. It drives the workpiece to rotate through the friction force between the welding workpiece and the driving roller, thereby completing the welding of the circumferential weld. There are various types of existing roller racks, such as self-adjusting type, adjustable type, and flat car type, etc. The self-adjusting roller rack can automatically adjust the center distance of the rollers according to the diameter of the workpiece and is suitable for workpieces to be welded with different diameters. The adjustable roller rack can adjust the position of the rollers manually or electrically.

[0003] Currently, the rotation speed of the workpiece of the roller rack is mainly controlled by the friction force between the workpiece to be welded and the driving roller. However, the friction force is affected by various factors, such as the surface roughness of the workpiece and the material of the roller, resulting in unstable rotation speed of the workpiece and thus affecting the welding quality. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies in the prior art and provide a roller rack for welding.

[0005] The specific technical solution adopted by the utility model is as follows:

[0006] The utility model provides a roller rack for welding, which includes a driven supporting roller, a motor, a coupling, a driving supporting roller, and a track;

[0007] The tracks are arranged in parallel at intervals, and several groups of driven supporting rollers and driving supporting rollers are arranged at intervals on the tracks. The workpiece to be welded is placed on the driven supporting rollers and the driving supporting rollers; the driven supporting rollers are fixed on the driven bracket, and the driven bracket is fixed on the track through a fixing pin; the driving supporting roller is fixed on the track through the driving bracket; the motor is connected to the driving supporting roller through a coupling, and the motor controls the rotation speed of the driving supporting roller; the motor is fixed on the track through a motor bracket.

[0008] Preferably, the rotation speed range of the driving supporting roller controlled by the motor is 5 r / min to 40 r / min, and it is regulated by a frequency conversion PLC.

[0009] Preferably, a retaining wheel assembly for restricting the position of the workpiece to be welded is provided on the track; the retaining wheel assembly is fixed on the track through a retaining wheel bracket.

[0010] Furthermore, the retaining wheel bracket is fixed on the track by means of bolt connection, and the positions of the retaining wheel bracket and the retaining wheel assembly can be changed according to the length of the workpiece to be welded.

[0011] Preferably, the rails are made of H-shaped steel, square steel pipes or I-beams.

[0012] Preferably, support rods are vertically fixed between the parallel rails to ensure the stability of the rails.

[0013] Preferably, a bottom plate is arranged below the rails to avoid shaking caused by uneven ground.

[0014] The utility model has the following beneficial effects compared with the prior art:

[0015] In the roller stand for welding provided by the utility model, the rotation speed of the driving supporting wheel is controlled by a motor, which solves the drawback of controlling the rotation speed by the friction force between the workpiece to be welded and the driving supporting wheel in the traditional roller stand. Controlling the rotation speed by the motor can solve the problem of unstable rotation speed of the workpiece, and in addition, it also avoids the wear caused between the driving supporting wheel and the workpiece to be welded under long-term use. The roller stand for welding provided by the utility model can improve the welding quality and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a side view of the roller stand for welding provided in this embodiment;

[0017] Figure 2 is a top view of the roller stand for welding provided in this embodiment;

[0018] Figure 3 is a schematic diagram of the placement of the workpiece to be welded in this embodiment;

[0019] In the figure: driven supporting wheel 1, fixing pin 101, driven bracket 102, motor 2, motor bracket 201, coupling 3, driving supporting wheel 4, driving bracket 401, retaining wheel assembly 5, retaining wheel bracket 501, rail 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the above objects, features and advantages of the utility model more obvious and understandable, the following detailed description of the specific embodiments of the utility model will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed below. The technical features in the various embodiments of the utility model can be combined correspondingly without conflict.

[0021] Such as Figure 1 and Figure 2As shown, as a preference of the present utility model, the present embodiment provides a roller rack for welding. The roller rack includes a driven supporting wheel 1, a motor 2, a coupling 3, a driving supporting wheel 4, a retaining wheel assembly 5 and a track 6.

[0022] In the present utility model, the tracks 6 are arranged in parallel at intervals. In the present embodiment, the track 6 is made of H-shaped steel, but those skilled in the art can also select other section steels such as square steel pipes and I-beams according to the actual working conditions. In order to avoid the shaking of the track 6 caused by the uneven ground, a number of bottom plates are arranged at intervals below the track 6 in the present embodiment, and the bottom plates can be made of wood pads, etc.

[0023] In the present embodiment, a number of support rods are vertically fixed between the parallel tracks 6 to ensure the stability of the tracks 6. The support rods can be made of H-shaped steel and are vertically fixed between the parallel tracks 6 by welding.

[0024] In the present utility model, the driven supporting wheel 1 and the driving supporting wheel 4 are arranged at intervals on the track 6, and the workpiece to be welded is placed on the driven supporting wheel 1 and the driving supporting wheel 4, as Figure 3 shown. The driven supporting wheel 1 is fixed on the driven bracket 102, and the driven bracket 102 is fixed on the track 6 through a fixing pin 101; the driving supporting wheel 4 is fixed on the track 6 through a driving bracket 401.

[0025] The traditional roller rack mainly controls the rotation speed of the workpiece through the friction between the workpiece to be welded and the driving roller. However, in the present utility model, the driving supporting wheel 4 is connected to the motor 2 through the coupling 3, and the motor 2 is fixed on the track 6 through the motor bracket 201. The rotation speed of the driving supporting wheel 4 is controlled by the motor 2. In order to ensure the welding quality, the rotation speed of the driving supporting wheel 4 should not be too fast, but if the rotation speed of the driving supporting wheel 4 is too slow, it will also affect the welding efficiency. Therefore, in the present embodiment, the rotation speed of the driving supporting wheel 4 is regulated by the motor 2 through a frequency conversion PLC within the range of 5 r / min to 40 r / min.

[0026] In the present utility model, a retaining wheel assembly 5 for restricting the position of the workpiece to be welded is further provided on the track 6. The retaining wheel assembly 5 is fixed on the track 6 through a retaining wheel bracket 501. However, considering that the lengths of the workpieces to be welded are different, the retaining wheel bracket 501 is fixed on the track 6 by means of bolt connection, and the positions of the retaining wheel bracket 501 and the retaining wheel assembly 5 can be changed according to the length of the workpiece to be welded.

[0027] The above-described embodiments are only a preferred solution of the present utility model, but they are not intended to limit the present utility model. Those of ordinary skill in the relevant technical field can still make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present utility model.

Claims

1. A welding roller frame, characterized in that: It comprises a driven supporting wheel (1), a motor (2), a coupling (3), a driving supporting wheel (4) and a track (6); The rails (6) are arranged in parallel and at intervals, and a plurality of groups of driven rollers (1) and driving rollers (4) are arranged at intervals on the rails (6), and workpieces to be welded are placed on the driven rollers (1) and the driving rollers (4); the driven rollers (1) are fixed on the driven brackets (102), and the driven brackets (102) are fixed on the rails (6) through fixing pins (101); the driving rollers (4) are fixed on the rails (6) through driving brackets (401); the motor (2) is connected to the driving rollers (4) through a coupling (3), and the motor (2) controls the rotation speed of the driving rollers (4); and the motor (2) is fixed on the rails (6) through a motor bracket (201).

2. The welding roller stand according to claim 1, characterized in that: The motor (2) controls the rotation speed of the active supporting wheel (4) to be in the range of 5 r / min to 40 r / min, which is regulated by a variable frequency PLC.

3. The welding roller stand according to claim 1, characterized in that: The track (6) is provided with a stopper wheel assembly (5) for limiting the position of a workpiece to be welded; the stopper wheel assembly (5) is fixed to the track (6) via a stopper wheel bracket (501).

4. The welding roller stand according to claim 3, characterized in that: The wheel stop bracket (501) is fixed on the track (6) by bolt connection, and the positions of the wheel stop bracket (501) and the wheel stop assembly (5) can be changed according to the length of the workpiece to be welded.

5. The welding roller stand according to claim 1, characterized in that: The track (6) is made of H-shaped steel, square steel pipe or I-shaped steel.

6. The welding roller stand according to claim 1, characterized in that: Support rods are vertically fixed between the parallel rails (6) to ensure the stability of the rails (6).

7. The welding roller stand according to claim 1, characterized in that: A bottom plate is arranged below the track (6) to prevent shaking caused by uneven ground.

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