A high-power automatic and manual switching control device for intermediate frequency furnace

Abstract

The utility model discloses a high -power stove control device of frequency furnace hand is from the integral, including intermediate insulation fixed plate, the both sides of intermediate insulation fixed plate set up an insulating copper plate fixed seat respectively, install two copper plates on each copper plate fixed seat respectively, set up a set of support slide bar on the both sides of intermediate insulation fixed plate, the spring is sheathed on the support slide bar, and two insulating throw knife fixed plates are sheathed on the support slide bar set and press the spring, throw knife fixed plate copper block is installed on the side of two throw knife fixed plates to spring respectively, and the opposite side of throw knife fixed plate copper block in one of them sets up switching mechanism seat, and switching drive mechanism is installed on switching mechanism seat, and switching axle one end is connected switching drive mechanism, and the other end penetrates switching mechanism seat until the outside fixed of other side throw knife fixed plate. The utility model discloses can use driving part or adopt manual lengthening arm drive, and the scope of application is wide, and simple structure, and switching is convenient and fast.

Description

Technical Field

[0001] This utility model relates to a high-power furnace changer control device that integrates manual and automatic operation for medium-frequency furnaces, belonging to the technical field of medium-frequency furnace control equipment. Background Technology

[0002] In the medium-frequency furnace industry, the operation of the furnace body needs to be controlled and switched. Switching between each high-power medium-frequency power supply furnace body cannot be achieved simply by using a switching power supply; instead, a dedicated high-power furnace switching device is required. Existing technology, such as the high-power medium-frequency power supply furnace body switching device disclosed in CN202311096831.9, includes: a power cabinet, water-cooled cables, a lifting mechanism, and a switching mechanism. Four switching devices of this application are used to provide power to two smelting furnaces.

[0003] In this patent document, the switching mechanism includes two sets of fixed copper blocks, each corresponding to one of the two power supplies, and a movable copper block mounted on a slider. The movable copper block can slide vertically along the fixed mechanism and connect to one of the two sets of fixed copper blocks. The first end of the water-cooled cable is connected to the electric furnace, and the second end is configured to pass through the cable rack and connect to the movable copper block, thereby connecting to one of the two power supplies in the power cabinet. When the first furnace needs to be switched: First, all fastening bolts are manually removed: the ⑤⑥ copper blocks on the movable side are first loosened; then, the rotating handle is pushed: the handle 211 is manually moved from position 1 to position 2. Under the action of the eccentric shaft, the ⑤⑥ copper blocks (movable copper blocks) move away from the ③④ copper blocks (fixed copper blocks), releasing their contact with the fixed copper blocks. Under the action of the trapezoidal screw mechanism of the lifting mechanism 1, the lifting platform carrying the water-cooled cable is lifted, and copper blocks ⑤ and ⑥ are also lifted to the same height position as copper blocks ① and ②. Then, the handle 21 is manually turned from position 2 back to position 1. At this time, the contact surfaces of the copper blocks on both sides are brought close to each other and make contact. Then, the fastening bolts 210 are tightened back to copper blocks ① and ②, thus completing a quick power switch.

[0004] This method of switching is inefficient, requires manual disassembly, and the switching operation is too complicated and cumbersome, with a low degree of automation. Utility Model Content

[0005] Based on the customer's technical requirements and in view of the above-mentioned problems existing in the existing technology, our company organized R&D personnel to tackle the problems and finally provided a high-power furnace change control device that integrates manual and automatic operation for medium-frequency furnaces.

[0006] The purpose of this utility model is to solve the above-mentioned problems in the prior art and provide a high-power furnace changer control device that integrates manual and automatic operation for medium-frequency furnaces. It includes an intermediate insulating fixing plate, with an insulating copper plate fixing seat on each side of the intermediate insulating fixing plate. Two copper plates are installed on each copper plate fixing seat. A set of support slide rods is provided on each side of the intermediate insulating fixing plate, with springs sleeved on the support slide rods. Each of the two insulating knife-throwing fixing plates has a through hole corresponding to the support slide rod set. The knife-throwing fixing plate is sleeved on the support slide rod set through the through hole, with a spring pressed on one side and the other side fixed by the support slide rod set. A knife-throwing copper block is fixedly installed on the side of each of the two knife-throwing fixing plates facing the spring. A switching mechanism seat is provided on the side of one of the knife-throwing fixing plates opposite to the knife-throwing copper block. A switching drive mechanism is installed on the switching mechanism seat. One end of a switching shaft is connected to the switching drive mechanism, and the other end passes through the switching mechanism seat to the outside of the other knife-throwing fixing plate and is fixed. The knife-throwing copper blocks on both sides of the intermediate insulating fixing plate simultaneously press against or separate from the two copper plates on their respective sides.

[0007] Furthermore, the switching shaft is fixed by a switching shaft fixing bolt, and several spring washers are provided between it and the outer side of the blade fixing plate on the same side to adjust the stroke margin during the pressing process, so that pressing on both sides at the same time is more reliable.

[0008] Furthermore, the support slide rod assembly consists of two support slide rods, which are set on both sides of the copper plate. The rod body passes through the middle insulating fixing plate and the copper plate fixing seat. The middle part of the rod body is pressed onto the outer surface of the two copper plate fixing seats by two nuts respectively. The two ends of the rod body are threaded and pressed onto the throwing knife fixing plate by nuts. The spring is sleeved on the rod body between the copper plate fixing seat and the throwing knife fixing plate.

[0009] Furthermore, the switching drive mechanism includes two sets of rotating components, rotating component I and rotating component II. One end of rotating component I is rotatably hinged to both sides of the switching mechanism seat, and the other end is rotatably hinged to rotating component II. One end of the switching shaft is hinged to rotating component I and located in the middle of rotating component I. One end of the drive member is hinged to the switching mechanism seat, and the other end is hinged to rotating component II. The hinge point between rotating component I and rotating component II is located between the hinge point between the switching shaft and the drive member and rotating component II.

[0010] Furthermore, the rotating component II is L-shaped and consists of a short arm and a long arm connected at the ends. The hinge point between the rotating component I and the rotating component II is located at the end connection of the short arm and the long arm. The switching shaft is hinged to the suspended section of the short arm, and the driving component is hinged to the suspended section of the long arm.

[0011] Furthermore, the long arm is provided with several hinge holes for adjusting the installation position of the drive component and the long arm.

[0012] Furthermore, the copper plate has a cooling channel inside, and connecting pipes are respectively provided at both ends. The two copper plates are symmetrically arranged on the copper plate fixing base with a switching axis.

[0013] Furthermore, the copper plate mounting base has an installation groove, and a fixing plate matching the installation groove is provided on the copper plate for fixed installation.

[0014] Furthermore, a limit switch mounting plate is provided on the intermediate insulating fixing plate. The cantilever section of the limit switch mounting plate faces the switching drive mechanism. Two symmetrically arranged limit switches are installed on the limit switch mounting plate. A lever plate is provided on the knife-throwing fixing plate on the same side, located between the two limit switches. The lever plate presses against one of the limit switches at the end of a certain stroke, so that one of the two limit switches is turned on and the other is turned off.

[0015] Furthermore, the copper block used for throwing knives has a cooling channel inside, and connecting pipes are provided at both ends.

[0016] The advantages of this utility model over the prior art are as follows: 1. It can be driven manually without the use of a drive unit or automatically with the use of a drive unit, making it widely applicable and realizing manual and automatic high-power furnace change control of medium frequency furnaces; 2. Simple structure, convenient and quick switching, and reliable connection and disconnection. Attached Figure Description

[0017] Figure 1 This is a front view of an embodiment of the present utility model; Figure 2 This is a top view of an embodiment of the present utility model; Figure 3 This is a perspective view of an embodiment of the present utility model; In the diagram: 1. Intermediate insulating fixing plate, 2. Copper plate fixing seat, 3. Copper plate, 4. Copper plate, 5. Throwing knife fixing plate, 6. Throwing knife fixing plate, 7. Throwing knife copper block, 8. Switching shaft, 9. Spring washer, 10. Switching mechanism seat, 11. Cylinder, 12. Rotating assembly I, 13. Rotating assembly II, 14. Limit switch mounting plate, 15. Hinge hole, 16. Support slide rod, 17. Limit switch, 18. Toggle plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Example

[0019] like Figure 1 , 2 The medium-frequency furnace manual-automatic high-power furnace changing control device shown in Figure 3 includes an intermediate insulating fixing plate 1. An insulating copper plate fixing seat 2 is set on each side of the intermediate insulating fixing plate 1. Two copper plates 3 and 4 are installed on each copper plate fixing seat 2. The two copper plates 3 or 4 are not directly connected, but are connected or disconnected by controlling the throwing knife copper block 7 on the side.

[0020] In this embodiment, the support slide rod assembly consists of two support slide rods 16. The two support slide rods 16 are arranged on both sides of the copper plates 3 and 4, and the rod body passes through the intermediate insulating fixing plate 1 and the copper plate fixing seat 2. The middle part of the rod body is pressed onto the outer surface of the two copper plate fixing seats 2 by two nuts respectively. The two ends of the rod body are provided with threads, and the throwing knife fixing plates 5 and 6 are pressed onto the rod body by the nuts. The spring (not shown in the figure) is sleeved on the rod body between the copper plate fixing seat 2 and the throwing knife fixing plates 5 and 6. The two throwing knife fixing plates 5 and 6 are provided with through holes corresponding to the two support slide rods 16. The throwing knife fixing plates 5 and 6 are sleeved onto the two support slide rods 16 on their respective sides through their through holes. The two ends of the support slide rod 16 are provided with threads, and the throwing knife fixing plates 5 and 6 on their respective sides are pressed onto the throwing knife fixing plates 5 and 6 by two nuts, so as to limit and adjust the pressure on the spring.

[0021] A throwing knife copper block 7 is fixedly installed on the side of each of the two throwing knife fixing plates 5 and 6 facing the spring. A switching mechanism seat 10 is set on the throwing knife fixing plate 5. The switching drive mechanism is installed on the switching mechanism seat 10. One end of the switching shaft 8 is connected to the switching drive mechanism, and the other end passes through the switching mechanism seat 10 until it is fixed to the outside of the throwing knife fixing plate 6. The throwing knife copper blocks 7 on both sides of the middle insulating fixing plate 1 are simultaneously pressed or separated from the two copper plates on their respective sides.

[0022] The switching drive mechanism includes two sets of rotating components, rotating component I 12 and rotating component II 13. One end of rotating component I 12 is rotatably hinged to both sides of the switching mechanism seat 10, and the other end is rotatably hinged to rotating component II 13. One end of the switching shaft 8 is hinged to rotating component I 12 and located in the middle of rotating component I 12. One end of the cylinder 11 is hinged to the switching mechanism seat 10, and the other end is hinged to rotating component II 13. The hinge point of rotating component I 12 and rotating component II 13 is located between the hinge point of switching shaft 8 and cylinder 11 and rotating component II 13.

[0023] The two copper plates 3 and 4 have cooling channels inside, and connecting pipes are installed at both ends. The two copper plates 3 and 4 are symmetrically arranged on the copper plate fixing seat 2 around the switching axis 8. The throwing knife copper block 7 has cooling channels inside, and connecting pipes are installed at both ends. The connecting pipes are used to connect to the coolant pipeline.

[0024] A limit switch mounting plate 14 is provided on the intermediate insulating fixing plate 1. The cantilever section of the limit switch mounting plate 14 faces the switching drive mechanism. Two symmetrically arranged limit switches 17 are installed on the limit switch mounting plate 14. A lever plate 18 is provided on the knife-throwing fixing plate 5 between the two limit switches. The lever plate 18 is pressed against one of the limit switches at the end of a certain stroke, so that one of the two limit switches 17 is turned on and the other is turned off.

[0025] Working process: When the copper blocks 7 on the knife-throwing fixing plates 5 and 6 are pressed against the two copper plates 3 and 4 on the same side, the two copper blocks 7 are connected to the two copper plates 3 and 4 on the same side to form a circuit, so that the furnace body connected to this circuit is powered. At this time, the dial plate 18 is pressed against the limit switch 17 near the middle insulating fixing plate 1 to conduct and provide the furnace body with the signal for power supply.

[0026] During automatic switching, the air circuit is opened to supply air to cylinder 11, the cylinder extension arm extends, pushing the rotating assembly II 13 to rotate, driving the switching shaft 8 to move towards the throwing knife fixing plate 6. At this time, the rotating assembly I... 12. Following the rotation, the switching shaft 8 drives the throwing knife fixing plate 6 and the throwing knife fixing plate 5 to move simultaneously away from the intermediate insulating fixing plate 1. The throwing knife copper blocks 7 on the throwing knife fixing plates 5 and 6 are pulled apart from the copper plates 3 and 4. When the telescopic arm of the cylinder 11 moves to the position, both switches are in an absolutely open state. At this time, the dial plate 18 is pressed and connected with the limit switch 17 on the side away from the intermediate insulating fixing plate 1, and a disconnect signal is issued. When the cylinder 11 moves again and the telescopic arm of the cylinder retracts, the switching shaft 8 drives the throwing knife fixing plate 6 and the throwing knife fixing plate 5 to move simultaneously towards the intermediate insulating fixing plate 1. The throwing knife copper blocks 7 on the throwing knife fixing plates 5 and 6 are pressed and connected with the two copper plates 3 and 4 on their respective sides, until the telescopic arm of the cylinder 11 moves to the position, ensuring that both switches are in a conducting state. The dial plate 18 is pressed and connected with the limit switch 17 on the side close to the intermediate insulating fixing plate 1, and a conduction signal is issued.

[0027] Multiple units of this device can be used together. For example, eight units can be installed simultaneously to switch between two furnace bodies. Example

[0028] As a further design of Embodiment 1, the structural difference of this embodiment is that 4 to 12 spring washers 9 are provided between the switching shaft fixing bolt and the throwing knife fixing plate 6 to adjust the stroke margin caused during the pressing process, so as to make the pressing more reliable.

[0029] Rotating assembly II 13 is an L-shaped plate, consisting of a short arm and a long arm connected at the ends. The hinge point between rotating assembly I 12 and rotating assembly II 13 is located at the end connection of the short arm and the long arm. The switching shaft is hinged to the suspended section of the short arm, and the cylinder 11 is hinged to the suspended section of the long arm.

[0030] Three sets of hinge holes 15 are provided on the long arm for adjusting the cylinder telescopic rod and the installation position of the long arm.

[0031] The copper plate mounting base 2 has an installation groove, and the copper plates 3 and 4 are equipped with fixing plates that match the installation groove for fixed installation.

[0032] When operated manually, the cylinder 11 can be extended or retracted simply by pulling or pushing the long arm.

[0033] The above embodiments are merely explanations and illustrations of the technical solution of this utility model and should not be used to limit the protection scope of the technical solution of this utility model. All simple modifications based on this solution are within the protection scope of this utility model.

Claims

1. A high-power furnace changeover control device integrating manual and automatic operation for a medium-frequency furnace, characterized in that: The device includes an intermediate insulating fixing plate, with an insulating copper plate fixing seat on each side of the intermediate insulating fixing plate. Two copper plates are installed on each copper plate fixing seat. A set of support slide rods is set on each side of the intermediate insulating fixing plate, and a spring is sleeved on the support slide rod. Each of the two insulating knife-throwing fixing plates has a through hole corresponding to the support slide rod set. The knife-throwing fixing plate is sleeved on the support slide rod set through the through hole, with a spring pressed on one side and the other side fixed by the support slide rod set. A knife-throwing copper block is fixedly installed on the side of each of the two knife-throwing fixing plates facing the spring. A switching mechanism seat is set on the side of one of the knife-throwing fixing plates opposite to the knife-throwing copper block. A switching drive mechanism is installed on the switching mechanism seat. One end of the switching shaft is connected to the switching drive mechanism, and the other end passes through the switching mechanism seat to the outside of the other knife-throwing fixing plate and is fixed. The knife-throwing copper blocks on both sides of the intermediate insulating fixing plate are simultaneously pressed or separated from the two copper plates on their respective sides.

2. The high-power furnace changeover control device with manual / automatic operation for medium-frequency furnaces according to claim 1, characterized in that: The switching shaft is fixed by a switching shaft fixing bolt, and several spring washers are provided between it and the outer side of the throwing knife fixing plate on the same side.

3. The high-power furnace changeover control device with manual / automatic operation for medium-frequency furnaces according to claim 1, characterized in that: The support slide rod assembly consists of two support slide rods, which are set on both sides of the copper plate. The rod body passes through the middle insulating fixing plate and the copper plate fixing seat. The middle part of the rod body is pressed onto the outer surface of the two copper plate fixing seats by two nuts respectively. The two ends of the rod body are threaded and pressed onto the throwing knife fixing plate by nuts. A spring is sleeved on the rod body between the copper plate fixing seat and the throwing knife fixing plate.

4. The high-power furnace changeover control device with manual / automatic operation for medium-frequency furnaces according to claim 1, characterized in that: The switching drive mechanism includes two sets of rotating components, rotating component I and rotating component II. One end of rotating component I is rotatably hinged to both sides of the switching mechanism seat, and the other end is rotatably hinged to rotating component II. One end of the switching shaft is hinged to rotating component I and located in the middle of rotating component I. One end of the drive member is hinged to the switching mechanism seat, and the other end is hinged to rotating component II. The hinge point between rotating component I and rotating component II is located between the hinge point of the switching shaft and the hinge point between the drive member and rotating component II.

5. The high-power furnace changeover control device with manual / automatic operation for medium-frequency furnaces according to claim 4, characterized in that: The rotating component II is L-shaped and consists of a short arm and a long arm connected at the ends. The hinge point between the rotating component I and the rotating component II is located at the end connection of the short arm and the long arm. The switching shaft is hinged to the suspended section of the short arm, and the driving component is hinged to the suspended section of the long arm.

6. The high-power furnace changeover control device with manual / automatic operation for medium-frequency furnaces according to claim 5, characterized in that: The long arm is provided with several hinge holes for adjusting the installation position of the drive component and the long arm.

7. The high-power furnace changeover control device with manual / automatic operation for medium-frequency furnaces according to claim 1, characterized in that: The copper plate has a cooling channel inside and connecting pipes are provided at both ends. The two copper plates are symmetrically arranged on the copper plate fixing base with a switching axis.

8. The high-power furnace changeover control device with manual / automatic operation for medium-frequency furnaces according to claim 7, characterized in that: The copper plate mounting base has an installation groove, and a fixing plate matching the installation groove is provided on the copper plate for fixed installation.

9. The high-power furnace changeover control device with manual / automatic operation for medium-frequency furnaces according to claim 1, characterized in that: A limit switch mounting plate is provided on the intermediate insulating fixing plate. The cantilever section of the limit switch mounting plate faces the switching drive mechanism. Two symmetrically arranged limit switches are installed on the limit switch mounting plate. A lever plate is provided on the knife-throwing fixing plate on the same side, located between the two limit switches. The lever plate presses against one of the limit switches at the end of a certain stroke, so that one of the two limit switches is turned on and the other is turned off.

10. The high-power furnace changeover control device with manual / automatic operation for medium-frequency furnaces according to claim 1, characterized in that: The copper block used for throwing knives has a cooling channel inside, and connecting pipes are installed at both ends.

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