Safety cover plate device for electron beam smelting furnace

Abstract

The utility model relates to a safety cover plate device for an electron beam smelter, which comprises a cover plate, a safety cover plate and a safety cover plate, the cover plate can cover the hole in the top of the ingot pulling chamber, and the size of the cover plate is larger than that of the hole in the top of the ingot pulling chamber. The two sliding rails are arranged on the two sides of the cover plate in the width direction of the cover plate respectively, and the two sides, where the width direction is located, of the cover plate are each connected with one sliding rail in a sliding mode; the transportation assembly comprises a driving mechanism and a fork handle, and the driving mechanism is configured to drive the fork handle to move in the width direction of the cover plate; fork heads are arranged at the end part of the fork handle; the number and the positions of the fork heads are the same as the number and the positions of the hanging lugs and are in one-to-one correspondence with the hanging lugs; the height of the fork head is larger than that of each hanging lug, the fork head can be inserted into the corresponding hanging lug, and when the fork head is inserted into the corresponding hanging lug, the lowest point on the cover plate is not lower than a hole in the top of the ingot pulling chamber.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting equipment, in particular to a safety cover plate device for an electron beam melting furnace. Background Art

[0002] The electron beam melting furnace adopts the ingot pulling method. Therefore, when the ingot is taken out of the furnace, after the ingot pulling chamber moves out of the melting area, a large round or waist-shaped hole will appear below the crystallizer position, which leads directly to the ingot pulling chamber pit below. The depth is more than 10 meters, posing a great safety hazard.

[0003] At present, compared with all furnace types at home and abroad, this hole has no special protection facilities. Usually, there are only warning methods such as placing signs and reminding personnel, which still poses a great safety hazard. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a safety cover device for an electron beam melting furnace. The technical solution is as follows:

[0005] A safety cover device for an electron beam melting furnace, comprising:

[0006] A cover plate, wherein a hanging ear is arranged on the top of the cover plate, and a plurality of the hanging ears are arranged side by side along the length direction of the cover plate; the cover plate can cover the hole on the top of the ingot pulling chamber, and the size of the cover plate is larger than the hole on the top of the ingot pulling chamber;

[0007] There are two slide rails, which are respectively arranged on both sides of the cover plate along the width direction of the cover plate, and each of the two sides of the cover plate in the width direction is slidably connected with one of the slide rails;

[0008] A transport assembly, comprising a driving mechanism and a fork handle, wherein the driving mechanism is configured to drive the fork handle to move along the width direction of the cover plate; the end of the fork handle has a fork head, the number and position of the fork heads are the same as the number and position of the hanging ears and correspond one to one; the height of the fork head is higher than the height of each hanging ear, and the fork head can be inserted into the corresponding hanging ear, and when the fork head is inserted into the corresponding hanging ear, the lowest point on the cover plate is not lower than the hole at the top of the ingot pulling chamber.

[0009] In one possible implementation,

[0010] The end of the fork head is wedge-shaped, and the top surface of the end is a slope surface.

[0011] In the above possible implementation, further,

[0012] The inner top wall of the hanging ear corresponding to the fork head close to the fork head is formed with an inclined surface, and the inclined direction of the inclined surface is the same as the inclined direction of the top surface of the fork head end.

[0013] In one possible implementation,

[0014] A reinforcing beam is fixedly arranged at the bottom of the cover plate, and a plurality of the reinforcing beams are arranged in parallel along the length direction of the cover plate.

[0015] In the above possible implementation, further,

[0016] When the fork is inserted into the corresponding hanging ear, the lowest point on each reinforcement beam is not lower than the hole on the top of the ingot pulling chamber.

[0017] In one possible implementation,

[0018] It also includes a limit stopper, which is arranged on the side of the hole at the top of the ingot pulling chamber away from the end of the fork head, and the height of the limit stopper is higher than the height of the lowest point on the cover plate.

[0019] The above technical solution provided by this application has at least the following technical effects or advantages:

[0020] The safety cover device provided by the present application is larger in size than the hole and can be stepped on by multiple people, which greatly enhances safety. The cover is driven to move by the cooperation of the slide rail and the transport assembly. The position of the cover is controlled by the four actions of pushing, lifting, moving and falling, so that it can be quickly moved away when the furnace ingot pulling chamber is working, and quickly returned to cover the hole of the ingot pulling chamber when it is not working and is open, thereby avoiding safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are 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.

[0022] Figure 1 A top view of the safety cover device for the electron beam melting furnace provided in this embodiment after it is moved out of the hole of the ingot pulling chamber;

[0023] Figure 2 A top view of the safety cover device for the electron beam melting furnace provided in this embodiment after being moved to the hole of the ingot pulling chamber;

[0024] Figure 3 A schematic diagram of a process flow when the safety cover plate device for an electron beam melting furnace provided in this embodiment moves the cover plate out of the hole of the ingot pulling chamber; the arrows in the figure indicate the process sequence;

[0025] Figure 4A schematic diagram of the process flow when the safety cover device for the electron beam furnace provided in this embodiment moves the cover to the hole of the ingot pulling chamber; the arrows in the figure indicate the process sequence.

[0026] In the figure:

[0027] 1-cover plate; 2-hanging ear; 3-slide rail; 4-driving mechanism; 5-fork handle; 6-fork head; 7-reinforcement beam; 8-limit block. DETAILED DESCRIPTION

[0028] The specific implementation of the embodiment of the utility model is described below in conjunction with the accompanying drawings.

[0029] like Figures 1 to 4 As shown, this embodiment provides a safety cover device for an electron beam furnace, which includes:

[0030] A cover plate 1, wherein a hanging ear 2 is arranged on the top of the cover plate 1, and a plurality of the hanging ears 2 are arranged side by side along the length direction of the cover plate 1; the cover plate 1 can cover the hole on the top of the ingot pulling chamber, and the size of the cover plate 1 is larger than the hole on the top of the ingot pulling chamber;

[0031] There are two slide rails 3, which are respectively arranged on both sides of the cover plate 1 along the width direction of the cover plate 1, and each of the two sides of the cover plate 1 in the width direction is slidably connected with one of the slide rails 3;

[0032] A transport assembly, comprising a drive mechanism 4 and a fork handle 5, wherein the drive mechanism 4 is configured to drive the fork handle 5 to move along the width direction of the cover plate 1; the end of the fork handle 5 has a fork head 6, the number and position of the fork heads 6 are the same as the number and position of the hanging ears 2 and correspond one to one; the height of the fork heads 6 is higher than the height of each hanging ear 2, and the fork heads 6 can be inserted into the corresponding hanging ears 2, and when the fork heads 6 are inserted into the corresponding hanging ears 2, the lowest point on the cover plate 1 is not lower than the hole at the top of the ingot pulling chamber.

[0033] In a preferred embodiment of this embodiment,

[0034] The end of the fork head 6 is wedge-shaped, and the top surface of the end is a slope surface.

[0035] In a further preferred embodiment,

[0036] The inner top wall of the hanging ear 2 corresponding to the fork head 6 is formed with an inclined surface on the side close to the fork head 6 , and the inclined direction of the inclined surface is the same as the inclined direction of the top surface of the end of the fork head 6 .

[0037] In a preferred embodiment of this embodiment,

[0038] A reinforcement beam 7 is fixedly disposed at the bottom of the cover plate 1 , and a plurality of the reinforcement beams 7 are arranged in parallel along the length direction of the cover plate 1 .

[0039] In a further preferred embodiment,

[0040] When the fork 6 is inserted into the corresponding hanging ear 2, the lowest point on each reinforcement beam 7 is not lower than the hole on the top of the ingot pulling chamber.

[0041] In a preferred embodiment of this embodiment,

[0042] It also includes a limit stopper 8, which is arranged on the side of the hole at the top of the ingot pulling chamber away from the end of the fork head 6, and the height of the limit stopper 8 is higher than the height of the lowest point on the cover plate 1.

[0043] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can refer to each other, and each embodiment focuses on the differences from other embodiments. The above embodiments are only used to illustrate the technical solutions of this application, rather than to limit this application; although the application is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of this application.

Claims

1. A safety cover device for an electron beam furnace, characterized in that: include: A cover plate, wherein a hanging ear is arranged on the top of the cover plate, and a plurality of the hanging ears are arranged side by side along the length direction of the cover plate; the cover plate can cover the hole on the top of the ingot pulling chamber, and the size of the cover plate is larger than the hole on the top of the ingot pulling chamber; There are two slide rails, which are respectively arranged on both sides of the cover plate along the width direction of the cover plate, and each of the two sides of the cover plate in the width direction is slidably connected with one of the slide rails; A transport assembly, comprising a driving mechanism and a fork handle, wherein the driving mechanism is configured to drive the fork handle to move along the width direction of the cover plate; the end of the fork handle has a fork head, the number and position of the fork heads are the same as the number and position of the hanging ears and correspond one to one; the height of the fork head is higher than the height of each hanging ear, and the fork head can be inserted into the corresponding hanging ear, and when the fork head is inserted into the corresponding hanging ear, the lowest point on the cover plate is not lower than the hole at the top of the ingot pulling chamber.

2. A safety cover device for an electron beam melting furnace according to claim 1, characterized in that: The end of the fork head is wedge-shaped, and the top surface of the end is a slope surface.

3. A safety cover device for an electron beam melting furnace according to claim 2, characterized in that: The inner top wall of the hanging ear corresponding to the fork head close to the fork head is formed with an inclined surface, and the inclined direction of the inclined surface is the same as the inclined direction of the top surface of the fork head end.

4. The safety cover device for an electron beam melting furnace according to claim 1, characterized in that: A reinforcing beam is fixedly arranged at the bottom of the cover plate, and a plurality of the reinforcing beams are arranged in parallel along the length direction of the cover plate.

5. The safety cover device for an electron beam melting furnace according to claim 4, characterized in that: When the fork head is inserted into the corresponding hanging ear, the lowest point on each reinforcement beam is not lower than the hole on the top of the ingot pulling chamber.

6. The safety cover device for an electron beam melting furnace according to claim 1, characterized in that: It also includes a limit stopper, which is arranged on the side of the hole at the top of the ingot pulling chamber away from the end of the fork head, and the height of the limit stopper is higher than the height of the lowest point on the cover plate.

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