Rotary driving mechanism for consumable furnace and electroslag furnace

Abstract

The utility model relates to a rotary driving mechanism for a consumable furnace and an electroslag furnace. The rotary driving mechanism comprises a base, a rotary bracket, a servo motor and a chain mounting seat, the rotating support rotates around a vertical shaft, is arranged above the base and is driven by the servo motor to rotate, a motor installation base is arranged on one side of the base, the servo motor is axially and vertically fixed to the motor installation base, a chain wheel is connected to a driving shaft of the servo motor, and the chain installation base is in an arc shape and is fixed to the lower portion of the rotating support. A chain matched with the chain wheel is fixed to the outer arc face of the chain installation base and is of an arc-shaped structure with the axis of the rotating support as the center. The chain is a flexible standard part, the length of the chain is in direct proportion to the rotating radian of the rotating support, the chain can be flexibly arranged, and cost is saved. And the worn chain can be integrally detached from the chain mounting seat for replacement, so that the maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of gas supply systems, in particular to a rotary drive mechanism for a consumable furnace and an electroslag furnace. Background Art

[0002] After the consumable furnace is completed, the furnace chamber needs to be moved from the completed melting station to another melting station to continue working. Therefore, a rotary drive mechanism needs to be added to the furnace chamber to complete the transfer of the processing object from one station to another.

[0003] A typical rotary drive mechanism uses a gear transmission, where a small gear driven by a servo motor drives a large gear. Because the rotation angle of a rotary drive mechanism is generally only around 90°, the large gear only needs to have teeth in a sector-shaped area. However, the large gear is difficult to manufacture, prone to wear, and has high maintenance costs.

[0004] Therefore, it is necessary to design a cost-saving rotary drive mechanism. Summary of the Invention

[0005] The main purpose of the utility model is to provide a rotary drive mechanism for a consumable furnace and an electroslag furnace, which can utilize chain and sprocket transmission, the chain length can be flexibly set, the cost is saved, and the maintenance is convenient.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a rotating drive mechanism for a consumable furnace and an electric slag furnace, comprising a base, a rotating bracket, a servo motor and a chain mounting seat; the rotating bracket is arranged above the base and rotates around a vertical axis and is driven to rotate by the servo motor, a motor mounting seat is provided on one side of the base, the servo motor is axially and vertically fixed to the motor mounting seat, a sprocket is connected to the driving shaft of the servo motor, the chain mounting seat is arc-shaped and fixed to the lower part of the rotating bracket, a chain that cooperates with the sprocket is fixed on the outer arc surface of the chain mounting seat, and the chain is an arc-shaped structure centered on the axis of the rotating bracket.

[0007] Specifically, it also includes a protective plate with an arc-shaped structure, which is located on the outside of the chain and blocks the sprocket.

[0008] Specifically, a left limit column and a right limit column are provided on the outer periphery of the base, and a left stop block and a right stop block are provided on the rotating bracket. The left limit column limits the extreme position of the left stop block when the rotating bracket rotates counterclockwise, and the right limit column limits the extreme position of the right stop block when the rotating bracket rotates clockwise. The rotating bracket maintains the contact between the sprocket and the chain when rotating between the two extreme positions.

[0009] Furthermore, the other side of the base is provided with a left deceleration switch, a left stop switch, a right stop switch and a right deceleration switch from left to right in sequence, and the lower part of the rotating bracket is also provided with a left trigger block and a right trigger block. When the left block approaches the left limit column, the left trigger block touches the left deceleration switch and the left stop switch in sequence, and when the right block approaches the right limit column, the right trigger block touches the right deceleration switch and the right stop switch in sequence; the left deceleration switch and the right deceleration switch are used to control the speed of the servo motor to decrease, and the left stop switch and the right stop switch are used to control the servo motor to stop running.

[0010] Furthermore, the left deceleration switch, the left stop switch, the right stop switch and the right deceleration switch can all be adjustably fixed on the same switch track frame, and the switch track frame is connected to the base.

[0011] The beneficial effects of the technical solution of this utility model are:

[0012] This utility model features a flexible standard chain, whose length is proportional to the arc of rotation of the rotating bracket, allowing for flexible configuration and cost savings. When secured against the outer curved surface of the chain mounting base, the chain is tightened into an arc, forming a transmission relationship between the sprocket and the chain, thereby converting the forward and reverse rotation of the servo motor into forward and reverse rotation of the rotating bracket. If the chain becomes worn, it can be completely removed from the chain mounting base for replacement, facilitating maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a partial perspective view of the rotary drive mechanism of the embodiment;

[0014] Figure 2 is a positional relationship diagram of the rotary drive mechanism and the first and second workstations;

[0015] Figure 3 It is a partial cross-sectional view of the transmission position of the rotary drive mechanism;

[0016] Figure 4 for Figure 3 A partial enlarged view of position A in the middle;

[0017] Figure 5 It is a three-dimensional diagram of the transmission position of the rotary drive mechanism;

[0018] Figure 6 It is a partial front view of the rotary drive mechanism;

[0019] Figure 7 for Figure 6 BB cross-section view in.

[0020] The numbers in the figure represent:

[0021] 1- Rotation drive mechanism,

[0022] 11-base, 111-motor mounting seat, 112a-left limit column, 112b-right limit column, 113a-left deceleration switch, 113b-left stop switch, 113c-right stop switch, 113d-right deceleration switch, 114-switch track frame,

[0023] 12-rotating bracket, 121a-left stopper, 121b-right stopper, 122a-left trigger block, 122b-right trigger block,

[0024] 13-Servo motor, 131-Sprocket,

[0025] 14-chain mount, 141-chain,

[0026] 15-protective plate;

[0027] 2-First station;

[0028] 3-The second workstation. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to specific embodiments.

[0030] Example:

[0031] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 7 As shown, the rotary drive mechanism 1 for a consumable furnace and an electroslag furnace of the present invention comprises a base 11 , a rotary bracket 12 , a servo motor 13 , a chain mounting seat 14 and a protective plate 15 .

[0032] The rotary drive mechanism 1 has at least one first station 2 and one second station 3 on different sides. In this embodiment, the angle between the two stations is 90°. The rotary support 12 has a conveying portion. The servo motor 13 drives the rotary support 12 to rotate relative to the base 11, aligning the conveying portion with the first station 2 or the second station 3.

[0033] like Figures 1 to 5As shown, the rotating bracket 12 is arranged above the base 11 and is driven to rotate by the servo motor 13. A motor mounting seat 111 is provided on one side of the base 11. The servo motor 13 is axially and vertically fixed to the motor mounting seat 111. A sprocket 131 is connected to the driving shaft of the servo motor 13. The chain mounting seat 14 is arc-shaped and fixed to the lower part of the rotating bracket 12. A chain 141 that cooperates with the sprocket 131 is fixed on the outer arc surface of the chain mounting seat 14. The chain 141 is an arc-shaped structure centered on the axis of the rotating bracket 12. The protective plate 15 is an arc-shaped structure. The protective plate 15 is located on the outside of the chain 141 and blocks the sprocket 131.

[0034] The chain 141 is a flexible standard part. The length of the chain 141 is proportional to the rotation arc of the rotating bracket 12. It can be flexibly set and saves costs. When the chain 141 is fixed against the outer arc surface of the chain mounting seat 14, it will be tightened into an arc shape, so that the sprocket 131 and the chain 141 can form a transmission relationship, thereby converting the forward and reverse rotation of the servo motor 13 into the forward and reverse rotation of the rotating bracket 12. If the chain 141 is worn, it can also be removed from the chain mounting seat 14 as a whole and replaced, which is convenient for maintenance. The protective plate 15 can prevent foreign matter from being caught in the contact position between the chain 141 and the sprocket 131, avoiding jamming and reducing safety hazards.

[0035] like Figure 1 、 Figure 6 and Figure 7 As shown, a left limit column 112a and a right limit column 112b are provided on the outer periphery of the base 11, and a left stopper 121a and a right stopper 121b are provided on the rotating bracket 12. The left limit column 112a limits the left stopper 121a to the extreme position when the rotating bracket 12 rotates counterclockwise, and the right limit column 112b limits the right stopper 121b to the extreme position when the rotating bracket 12 rotates clockwise. When the rotating bracket 12 rotates between the two extreme positions, the sprocket 131 maintains contact with the chain 141.

[0036] The left and right stoppers cooperate with the left and right limit posts to prevent the sprocket 131 from being damaged due to being out of the angular range of the chain 141, which is beneficial to extending the service life of the parts.

[0037] like Figure 6 and Figure 7As shown, the other side of the base 11 is provided with a left deceleration switch 113a, a left stop switch 113b, a right stop switch 113c, and a right deceleration switch 113d from left to right. The lower portion of the rotating bracket 12 is also provided with a left trigger block 122a and a right trigger block 122b. When the left stop block 121a approaches the left limit post 112a, the left trigger block 122a sequentially contacts the left deceleration switch 113a and the left stop switch 113b. When the right stop block 121b approaches the right limit post 112b, the right trigger block 122b sequentially contacts the right deceleration switch 113d and the right stop switch 113c. The left deceleration switch 113a and the right deceleration switch 113d are used to control the speed of the servo motor 13 to decrease, and the left stop switch 113b and the right stop switch 113c are used to control the servo motor 13 to stop running.

[0038] During the rotation of the rotating bracket 12 from one extreme position to another, it first accelerates, then maintains a constant speed, and then decelerates. The left deceleration switch 113a, the left stop switch 113b, the right stop switch 113c, and the right deceleration switch 113d are all travel switches. When the trigger block is not in contact with the travel switch, the servo motor 13 rotates at the fastest speed. When either of the two deceleration switches is triggered, the servo motor 13 begins to decelerate. When either of the two stop switches is triggered, the servo motor 13 stops completely. This allows for more precise control of the start and stop processes of the servo motor 13 and prevents wear of the drive shaft of the servo motor 13 due to rotational inertia.

[0039] like Figure 6 As shown, the left deceleration switch 113 a , the left stop switch 113 b , the right stop switch 113 c and the right deceleration switch 113 d are all adjustably fixed on the same switch track frame 114 , and the switch track frame 114 is connected to the base 11 .

[0040] The relative positions of the left deceleration switch 113a, the left stop switch 113b and the left trigger block 122a, and the right stop switch 113c, the right deceleration switch 113d and the right trigger block 122b need to be controlled relatively accurately. The switch track frame 114 allows the left deceleration switch 113a, the left stop switch 113b, the right stop switch 113c and the right deceleration switch 113d to be adjusted freely in the horizontal direction, thereby accurately controlling the acceleration, deceleration and stopping positions.

[0041] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A rotary drive mechanism for a consumable furnace and an electroslag furnace, characterized in that: It includes a base, a rotating bracket, a servo motor and a chain mounting seat; the rotating bracket is arranged above the base and rotates around a vertical axis and is driven to rotate by the servo motor. A motor mounting seat is provided on one side of the base, and the servo motor is axially and vertically fixed to the motor mounting seat. A sprocket is connected to the driving shaft of the servo motor. The chain mounting seat is arc-shaped and fixed to the lower part of the rotating bracket. A chain that cooperates with the sprocket is fixed on the outer arc surface of the chain mounting seat. The chain is an arc-shaped structure centered on the axis of the rotating bracket.

2. The rotary drive mechanism for a consumable furnace and an electroslag furnace according to claim 1, characterized in that: It also includes a protective plate with an arc-shaped structure, which is located on the outside of the chain and covers the sprocket.

3. The rotary drive mechanism for a consumable furnace and an electroslag furnace according to claim 1, characterized in that: A left limit post and a right limit post are provided on the outer periphery of the base, and a left stopper and a right stopper are provided on the rotating bracket. The left limit post limits the extreme position of the left stopper when the rotating bracket rotates counterclockwise, and the right limit post limits the extreme position of the right stopper when the rotating bracket rotates clockwise. The rotating bracket maintains contact between the sprocket and the chain when rotating between the two extreme positions.

4. The rotary drive mechanism for a consumable furnace and an electroslag furnace according to claim 3, characterized in that: The other side of the base is provided with a left deceleration switch, a left stop switch, a right stop switch and a right deceleration switch from left to right in sequence. The lower part of the rotating bracket is also provided with a left trigger block and a right trigger block. When the left block approaches the left limit column, the left trigger block touches the left deceleration switch and the left stop switch in sequence. When the right block approaches the right limit column, the right trigger block touches the right deceleration switch and the right stop switch in sequence. The left deceleration switch and the right deceleration switch are used to control the speed of the servo motor to decrease, and the left stop switch and the right stop switch are used to control the servo motor to stop running.

5. The rotary drive mechanism for a consumable furnace and an electroslag furnace according to claim 4, characterized in that: The left deceleration switch, the left stop switch, the right stop switch and the right deceleration switch can all be adjustably fixed on the same switch track frame, and the switch track frame is connected to the base.

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