Automatic crucible recognition device

Abstract

The utility model relates to an automatic crucible identification device, which comprises a smelting station outer cylinder, a crucible and a travel switch, the crucible is provided with a crucible body placed in the smelting station outer cylinder and a switch beating plate ring arranged around the upper edge of the crucible body, the travel switch is arranged at the upper part of the outer wall of the smelting station outer cylinder, and the switch beating plate ring is arranged on the upper part of the outer wall of the smelting station outer cylinder. And the travel switch is provided with a contact which is vertically upwards contacted with the switch beating plate ring, and the heights of characteristic parts, which are contacted with the travel switch, of the switch beating plate ring on different crucibles are different. The switch beating plate rings used by different crucibles trigger the contacts of the travel switches to reach different strokes, so that the device can distinguish the types of the crucibles by utilizing the height of the characteristic part and output different signals to a control system, and then the operation parameters of the vacuum arc remelting furnace control system are changed, and the quality of the crucible is improved. And loss caused by mismatching of the crucible type and the steel type is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to an automatic crucible identification device. Background Art

[0002] In a vacuum arc remelting furnace, the same melting station within the same furnace may be used to melt different types of metals. These different metals require different melting parameters, and the metal crucibles used may be of similar structure but different material types. Currently, manual judgment is often required to determine the correct crucible. However, due to the similar structure of the crucibles, there is a significant risk of confusion, which can lead to losses in the steel produced.

[0003] Therefore, it is necessary to provide an automatic identification device to solve the above problems. Summary of the Invention

[0004] The main purpose of the utility model is to provide an automatic crucible identification device, which can automatically determine the type of crucible, thereby reducing the risk of loss caused by confusion of steel types.

[0005] The utility model achieves the above-mentioned object through the following technical solution: A crucible automatic identification device includes a smelting station outer cylinder, a crucible and a travel switch, the crucible having a crucible body placed in the smelting station outer cylinder and a switch plate ring surrounding the upper edge of the crucible body, the travel switch is arranged on the upper part of the outer wall of the smelting station outer cylinder, and the travel switch has a contact vertically upwardly contacting the switch plate ring, and the height of the characteristic portion of the switch plate ring that contacts the travel switch is different on different crucibles.

[0006] Specifically, the contact is a roller contact, and the rolling direction of the roller contact is along the tangent direction of the contact position between the roller contact and the switch plate ring.

[0007] Specifically, a lifting lug is provided on the outer side of the upper edge of the outer cylinder of the smelting station, and the travel switch is connected to the lifting lug.

[0008] Specifically, the limit switch is connected to the lifting ear through a fine-tuning mechanism, and the fine-tuning mechanism includes a fixed vertical plate connected to the lifting ear, a transverse slide rail provided on the back of the fixed vertical plate, and a switch seat moving along the transverse slide rail. The switch seat is horizontally adjustably fixed to the transverse slide rail, and the limit switch is vertically adjustably fixed to the switch seat.

[0009] The beneficial effects of the technical solution of this utility model are:

[0010] The switch ring of this utility model is a complete ring structure. Therefore, no matter which direction the crucible is rotated, the switch ring will contact the contacts of the limit switch when the crucible is placed in the outer cylinder of the melting station. The height of the characteristic portion of the switch ring that contacts the limit switch can be different for different crucibles, thereby triggering the limit switch contacts to reach different travel distances. In this way, the device can use the height of this characteristic portion to distinguish the crucible type, output different signals to the control system, and then adjust the operating parameters of the vacuum arc remelting furnace control system, thereby avoiding losses caused by mismatch between crucible type and steel grade. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A three-dimensional diagram of a use scenario of the automatic crucible identification device according to an embodiment;

[0012] Figure 2 This is an orthographic enlarged view of the crucible automatic identification device according to an embodiment;

[0013] Figure 3 It is an enlarged cross-sectional view of the automatic crucible identification device of the embodiment.

[0014] The numbers in the figure represent:

[0015] 1- outer tube of smelting station, 11- lifting lug;

[0016] 2-crucible, 21-crucible body, 22-switch plate ring;

[0017] 3-travel switch, 31-roller contact;

[0018] 4-fine-tuning mechanism, 41-fixed vertical plate, 42-horizontal slide rail, 43-switch seat. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to specific embodiments.

[0020] Example:

[0021] like Figures 1 to 3 As shown, the crucible automatic identification device of the present invention includes a smelting station outer cylinder 1, a crucible 2 and a limit switch 3. The crucible 2 has a crucible body 21 placed in the smelting station outer cylinder 1 and a switch plate ring 22 surrounding the upper edge of the crucible body 21. The limit switch 3 is arranged on the upper part of the outer wall of the smelting station outer cylinder 1, and the limit switch 3 has a contact that vertically contacts the switch plate ring 22 upward.

[0022] The switch ring 22 is a complete annular structure. Therefore, regardless of the orientation of the crucible 2, the switch ring 22 will contact the contacts of the limit switch 3 when the crucible 2 is placed in the outer cylinder 1 of the smelting station. The characteristic portion of the switch ring 22 that contacts the limit switch 3 can be at different heights for different crucibles 2, thereby triggering the contacts of the limit switch 3 to reach different travel distances. The device can then use this characteristic height to distinguish between different crucible types, outputting different signals to the control system, and subsequently adjusting the operating parameters of the vacuum arc remelting furnace control system, thus avoiding losses caused by a mismatch between crucible type and steel grade.

[0023] like Figure 2 and Figure 3 As shown, the contact is a roller contact 22 , and the rolling direction of the roller contact 22 is along the tangent direction of the contact position between the roller contact 22 and the switch plate ring 22 .

[0024] If the contacts were directly columnar, the switch striking ring 22 wouldn't necessarily strike the highest point of the contacts directly from the front when the crucible 2 was in place. A lateral force component might exist at the collision point, or even when the crucible 2 was inside the smelting station outer cylinder 1, a lateral force might be generated on the contacts, causing them to become warped and shortening their service life. However, with roller-type contacts 22, the roller always adjusts to the position of the switch striking ring 22. As the crucible 2 rotates, the compressed height of the contacts remains constant, and the roller rolls with the force, extending the service life of the components.

[0025] like Figure 2 and Figure 3 As shown, a lifting lug 11 is provided on the outer side of the upper edge of the outer cylinder 1 of the smelting station, and the limit switch 3 is connected to the lifting lug 11 through a fine-tuning mechanism 4. The fine-tuning mechanism 4 includes a fixed vertical plate 41 connected to the lifting lug 11, a transverse slide rail 42 provided on the back of the fixed vertical plate 41, and a switch seat 43 that moves along the transverse slide rail 42. The switch seat 43 is horizontally adjustably fixed to the transverse slide rail 43, and the limit switch 3 is vertically adjustably fixed to the switch seat 43.

[0026] The lifting lug 11 and crucible body 21 are integral to the entire apparatus. The switch striking ring 22 and limit switch 3 are additional components. A zero point must be determined between their positions. The relative position of the switch striking ring 22 and crucible body 21 is not adjustable, so the zero point is determined by the fixed position of the limit switch 3. The lifting lug 11 protrudes from the outer wall of the smelting station outer cylinder 1. To prevent damage to the wall of the smelting station outer cylinder 1 when securing the limit switch 3, the limit switch 3 is preferably fixed to the lifting lug 11. A fine-tuning mechanism 4 allows for both horizontal and vertical adjustment of the relative position of the limit switch 3.

[0027] 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 crucible automatic identification device, characterized in that: The invention comprises a smelting station outer cylinder, a crucible and a travel switch. The crucible comprises a crucible body placed in the smelting station outer cylinder and a switch plate ring arranged around the upper edge of the crucible body. The travel switch is arranged on the upper part of the outer wall of the smelting station outer cylinder, and the travel switch has a contact vertically upwardly contacting the switch plate ring. The height of the characteristic part of the switch plate ring contacting the travel switch is different on different crucibles.

2. The crucible automatic identification device according to claim 1, characterized in that: The contact is a roller contact, and the rolling direction of the roller contact is along the tangent direction of the contact position between the roller contact and the switch plate ring.

3. The crucible automatic identification device according to claim 1, characterized in that: A lifting lug is provided on the outer side of the upper edge of the outer cylinder of the smelting station, and the travel switch is connected to the lifting lug.

4. The crucible automatic identification device according to claim 3, characterized in that: The limit switch is connected to the lifting ear through a fine-tuning mechanism, and the fine-tuning mechanism includes a fixed vertical plate connected to the lifting ear, a transverse slide rail provided on the back of the fixed vertical plate, and a switch seat moving along the transverse slide rail. The switch seat is horizontally adjustably fixed to the transverse slide rail, and the limit switch is vertically adjustably fixed to the switch seat.

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