Intermediate frequency furnace body overturning and supporting device in vacuum furnace smelting chamber

Abstract

The utility model discloses an intermediate frequency furnace body overturning and supporting device in a vacuum furnace smelting chamber. A base is arranged below an intermediate frequency furnace body on one side of the far end of a furnace body overturning mechanism; the height of the support is adjustable, a rotating shaft of the support is connected to the base, and the support can rotate around the rotating shaft of the base in the vertical direction and is used for supporting the intermediate frequency furnace body in the vertical direction; the second end of the first joint is connected with the first end of the telescopic connecting rod; the telescopic connecting rod second end is connected with the second joint first end; the power source is arranged outside the vacuum furnace smelting chamber and fixedly installed on the fixed sealing seat, and the output end of the power source penetrates through the fixed sealing seat to be connected with the second end of the second connector. And the fixed sealing seat is fixedly mounted on the side wall of a smelting chamber of the vacuum furnace. The intermediate frequency furnace body in the smelting chamber of the vacuum furnace can be always kept stable, and instability caused by long-time work is avoided. Moreover, the device is simple in structure, reliable in operation and low in cost.

Description

Technical Field

[0001] The utility model relates to the field of special metallurgy, in particular to a medium frequency furnace body turning support device in a vacuum furnace smelting chamber. Background Art

[0002] Vacuum Induction Melting Furnace (VIM) is a device that uses electromagnetic induction heating to melt metals under vacuum conditions. It is widely used in the production of high-quality alloys, especially in the aerospace, medical, automotive and nuclear industries. The vacuum induction melting furnace uses medium-frequency induction heating technology to generate heat in conductive materials through an alternating electromagnetic field to achieve metal melting. The induction coil surrounds the crucible containing the metal to be melted. When the alternating current passes through the coil, it will generate induced eddy currents in the metal, rapidly heating up and melting the metal.

[0003] The vacuum induction melting furnace mainly includes the following components;

[0004] Melting Chamber: Provides a sealed vacuum environment and is usually made of materials that can withstand high temperatures and maintain vacuum integrity.

[0005] Medium frequency power supply: provides the power required for induction heating, including power supply, transformer and control circuit.

[0006] Vacuum system: Consists of a vacuum pump, vacuum gauge and valves, responsible for generating and maintaining a vacuum environment.

[0007] Cooling system: usually uses water cooling channels and fans to prevent overheating.

[0008] Electronic control system: monitors and controls temperature, vacuum degree and input power.

[0009] The turning process of the medium frequency furnace in the vacuum furnace melting chamber is an important part of the metal smelting process, which is usually used to smelt special alloys or high-purity metals. This process involves pouring the molten metal in the melting chamber from the medium frequency furnace into the mold. Since the vacuum furnace melting chamber must maintain a vacuum environment, the volume of the vacuum furnace melting chamber cannot be too large, which requires the medium frequency furnace to complete the turning and pouring of the molten metal in a smaller space. Therefore, when the medium frequency furnace pours the molten metal, it is necessary to perform a large-angle turning (the turning angle is at least greater than 60 degrees) for subsequent casting or processing. The medium frequency furnace melting turning process includes:

[0010] Heat the metal raw materials to the melting point to form molten metal. Move the medium frequency furnace to the predetermined position, flip the furnace body along the furnace body flip axis, and pour the molten metal into the mold. During the flipping process, ensure the stability and safety of the furnace body. Also, accurately control the pouring speed and angle to avoid splashing or oxidation of the molten metal. After the pouring is completed, reset the medium frequency furnace body.

[0011] During operation, the medium frequency furnace must remain stable when melting in the vacuum melting chamber. If it only relies on the hydraulic cylinders on both sides of the furnace, it is defective. When the hydraulic system fails, the stability of the medium frequency furnace cannot be ensured. Once the furnace body is unstable, because the furnace body and the molten metal liquid inside are heavy, even a small instability is likely to cause a major accident, such as uncontrollable overturning of the furnace body. In addition, as the use time increases, the gap or deviation between the furnace body structures is also a safety hazard that causes the instability of the medium frequency furnace body. Utility Model Content

[0012] A series of simplified concepts are introduced in the utility model content section, which are all simplifications of the prior art in the field, which will be further described in detail in the specific implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and necessary technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0013] The technical problem to be solved by the utility model is to provide a device which can provide stable support for the flipping and resetting of a medium frequency furnace body in a vacuum furnace smelting chamber.

[0014] In order to solve the above technical problems, the utility model provides a medium frequency furnace body turning support device in a vacuum furnace melting chamber, comprising:

[0015] The base is arranged below the intermediate frequency furnace body on the opposite side of the furnace body turning mechanism; the furnace body turning mechanism is arranged vertically on one side of the intermediate frequency furnace body, and the intermediate frequency furnace body can turn along the furnace body turning axis parallel to the ground; since the base has to bear a large weight, the base is preferably made of high-strength metal, such as stainless steel; the shape of the base can provide stable support, and is preferably a rectangular parallelepiped;

[0016] The support is height-adjustable, and its rotating shaft is connected to the base. It can rotate around the base rotating shaft parallel to the ground, and is used to support the intermediate frequency furnace body in the vertical direction. Since the support has to bear a large weight, the support is preferably made of high-strength metal, such as stainless steel. The shape of the support can provide stable support, and is preferably a columnar body;

[0017] A first joint, a first end of which is rotatably connected to a support, and a second end of which is connected to a first end of a telescopic connecting rod;

[0018] a telescopic connecting rod, a second end of which is connected to the first end of the second joint;

[0019] A power source is arranged outside the vacuum furnace smelting chamber and is fixedly mounted on a fixed sealing seat, with an output end thereof passing through the fixed sealing seat and connected to a second end of the second joint;

[0020] The fixed sealing seat is fixedly installed on the side wall of the vacuum furnace melting chamber.

[0021] Preferably, the medium frequency furnace body turning support device in the vacuum furnace smelting chamber is further improved, and the height adjustment bolt is formed on the top of the support;

[0022] The height adjustment nut is installed on the height adjustment bolt.

[0023] Preferably, the medium frequency furnace body turning support device in the vacuum furnace smelting chamber is further improved, and the second end of the first joint forms a first turning threaded connection with the first end of the telescopic connecting rod;

[0024] The second end of the telescopic connecting rod and the first end of the second joint form a second turning threaded connection;

[0025] The first turn and the second turn are opposite turns. The oppositely turned threads at both ends of the telescopic link can achieve two purposes: 1. During long-term use, the oppositely turned threads can interlock the two ends of the telescopic link and the connectors on both sides to prevent the telescopic link from falling off. 2. Both ends of the telescopic link are provided with threads, and the threads are provided at one end of the telescopic link to provide a longer telescopic range.

[0026] Preferably, the medium frequency furnace body flipping support device in the vacuum furnace melting chamber is further improved, and the power source is also electrically connected to the furnace body flipping mechanism, which receives the flipping electrical signal and the reset electrical signal sent by the furnace body flipping mechanism to perform the corresponding telescopic action.

[0027] Preferably, the medium frequency furnace body turning support device in the vacuum furnace smelting chamber is further improved, and upon receiving the turning electrical signal sent by the furnace body turning mechanism, the power source retracts its output end;

[0028] Receiving the reset electrical signal sent by the furnace body turning mechanism, the power source extends out of its output end.

[0029] Preferably, the medium frequency furnace body turning support device in the vacuum furnace smelting chamber is further improved, and the power source is an oil cylinder.

[0030] The utility model provides a linkage between the medium frequency furnace body flip support device and the furnace body flip mechanism in the vacuum furnace melting chamber, which can always ensure the stability of the medium frequency furnace body in the vacuum furnace melting chamber, and can complete the flip casting of the medium frequency furnace body in the vacuum furnace melting chamber under stable support conditions, avoiding instability caused by long-term work. In addition, the utility model has a simple structure, reliable operation, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings of the present utility model are intended to illustrate the general characteristics of the methods, structures and / or materials used in specific exemplary embodiments of the present utility model, and to supplement the description in the specification. However, the drawings of the present utility model are schematic diagrams not drawn to scale, and thus may not accurately reflect the precise structure or performance characteristics of any given embodiment. The drawings of the present utility model should not be interpreted as limiting or restricting the range of values ​​or properties covered by the exemplary embodiments of the present utility model. The present utility model is further described in detail below in conjunction with the drawings and specific embodiments.

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0033] Figure 2 This utility model is used as a reference Figure 1 , which shows the support status.

[0034] Figure 3 This utility model is used as a reference Figure 2 , which shows that the furnace body flipping mechanism starts to flip to the intermediate state of pouring molten metal.

[0035] Figure 4 This utility model is used as a reference Figure 3 , which shows the intermediate state of the furnace body flipping mechanism starting to reset to the initial position after dumping the molten metal.

[0036] Description of reference numerals:

[0037] Base 1;

[0038] Support 2;

[0039] Base shaft 3;

[0040] First connector 4;

[0041] Telescopic connecting rod 5;

[0042] Second connector 6;

[0043] Power source 7;

[0044] Fixed sealing seat 8;

[0045] Intermediate frequency furnace body 9;

[0046] Furnace body turning mechanism 10;

[0047] The furnace body turns over the axis 11. DETAILED DESCRIPTION

[0048] The following is an explanation of the implementation of the utility model by specific specific embodiments, and those skilled in the art can fully understand the other advantages and technical effects of the utility model from the content disclosed in this specification. The utility model can also be implemented or applied through different specific embodiments, and the details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without deviating from the general design concept of the utility model. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. The following exemplary embodiments of the utility model can be implemented in a variety of different forms and should not be interpreted as being limited to the specific embodiments described here. It should be understood that these embodiments are provided to make the disclosure of the utility model thorough and complete, and to fully convey the technical solutions of these exemplary specific embodiments to those skilled in the art. It should be understood that when an element is referred to as "connected" or "coupled" to another element, the element can be directly connected or coupled to another element, or there can be an intermediate element. The difference is that when an element is referred to as "directly connected" or "directly coupled" to another element, there is no intermediate element. In all the drawings, the same reference numerals always represent the same element.

[0049] First embodiment, reference Figure 1 Combination Figure 2 As shown, the utility model provides a medium frequency furnace body turning support device in a vacuum furnace smelting chamber, comprising:

[0050] A base 1 is arranged below the intermediate frequency furnace body 9 on the opposite side of the furnace body turning mechanism 10; the furnace body turning mechanism 10 is arranged vertically on one side of the intermediate frequency furnace body 9, and the intermediate frequency furnace body 9 can be turned along a furnace body turning axis 11 parallel to the ground;

[0051] The support 2 is height-adjustable, and its rotation axis is connected to the base 1. It can rotate around the base rotation axis 3 parallel to the ground, and is used to support the intermediate frequency furnace body 9 in the vertical direction;

[0052] A first joint 4, a first end of which is rotatably connected to the support 2, and a second end of which is connected to the first end of the telescopic connecting rod 5;

[0053] A telescopic connecting rod 5, a second end of which is connected to a first end of a second joint 6;

[0054] A power source 7, which is arranged outside the vacuum furnace smelting chamber and is fixedly mounted on a fixed sealing seat 8, and an output end thereof passes through the fixed sealing seat 8 and is connected to a second end of the second connector 6;

[0055] The fixed sealing seat 8 is fixedly mounted on the side wall of the vacuum furnace smelting chamber.

[0056] The utility model provides a preferred implementation for adjusting the height of the support in the first embodiment, including:

[0057] The height adjustment bolt is formed on the top of the support 2;

[0058] The height adjustment nut is installed on the height adjustment bolt.

[0059] The utility model provides a preferred implementation for adjusting the length of the telescopic connecting rod in the first embodiment, including:

[0060] The second end of the first joint 4 forms a first-direction threaded connection with the first end of the telescopic connecting rod 5;

[0061] The second end of the telescopic connecting rod 5 and the first end of the second joint 6 form a second turning threaded connection;

[0062] The first turn and the second turn are opposite turns.

[0063] In the first embodiment described above, the utility model provides that the action of the medium frequency furnace body turning support device in the vacuum furnace melting chamber can be manually operated, for example, the action of the power source 7 is controlled by a power switch button.

[0064] Second embodiment: The second embodiment of the present invention is a further improvement on the first embodiment, and the same parts are not repeated here.

[0065] The power source 7 is also electrically connected to the furnace body turning mechanism 10, and receives the turning electrical signal and the reset electrical signal sent by the furnace body turning mechanism 10 to perform the corresponding telescopic action;

[0066] Upon receiving the flipping electrical signal from the furnace flipping mechanism 10, the power source 7 retracts its output end;

[0067] Receiving the reset electrical signal from the furnace body turning mechanism 10, the power source 7 extends its output end;

[0068] In this embodiment, the power source 7 is selected as a cylinder.

[0069] In the above-mentioned second embodiment, the utility model provides a medium frequency furnace body turning support device in the vacuum furnace melting chamber, which is linked with the turning of the medium frequency furnace body, and no manual operation is required, thereby improving the casting efficiency.

[0070] Taking the second embodiment as an example, the use and working process of the utility model are described as follows;

[0071] refer to Figure 2 As shown, first rotate the height adjustment nut to adjust the height of the support so that the height of the support is level with the current intermediate frequency furnace body. As the equipment is used, this height adjustment step needs to be performed regularly.

[0072] Move the medium frequency furnace to the predetermined position, heat the metal raw material to the melting point, and form molten metal liquid. The furnace body flipping mechanism rotates the medium frequency furnace body along the furnace body flipping axis to pour the molten metal liquid into the mold.

[0073] refer to Figure 3 As shown, when the furnace body flipping mechanism starts flipping, the furnace body flipping mechanism sends a flipping electrical signal to the power source of the utility model. The output end of the power source of the utility model performs a retraction action, pulling the telescopic connecting rod to move away from the medium frequency furnace body, and then pulling the support to rotate around the base shaft, and the support starts to deviate from the direction of the vertical support to the direction away from the medium frequency furnace body. At the same time, the furnace body flipping mechanism drives the medium frequency furnace body to flip, and then the support can avoid the bottom end corner of the medium frequency furnace body, so that the medium frequency furnace body can smoothly pass over the support to complete the flip casting. Correspondingly, if the support remains stationary, it will collide with the bottom end corner of the medium frequency furnace body, and the medium frequency furnace body cannot be flipped at a large angle.

[0074] refer to Figure 4 As shown, when the furnace body flipping mechanism starts to reset, the furnace body flipping mechanism sends a reset electrical signal to the power source of the utility model. The output end of the power source of the utility model performs an extension action, pushing the telescopic connecting rod to move toward the medium frequency furnace body, thereby pushing the support to rotate around the base shaft. The rotation of the medium frequency furnace body and the rotation of the support are coordinated, so that the support avoids the bottom end corner of the medium frequency furnace body to form a vertical support, thereby allowing the medium frequency furnace body to smoothly pass over the support to complete the reset.

[0075] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. It will also be understood that, unless explicitly defined herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant field, and not interpreted in an ideal or overly formal sense.

[0076] The present invention is described in detail above through specific implementation methods and examples, but these do not constitute limitations of the present invention. Without departing from the principle of the present invention, those skilled in the art may make many modifications and improvements, which should also be considered as the protection scope of the present invention.

Claims

1. A medium frequency furnace body turning support device in a vacuum furnace smelting chamber, characterized in that: include: A base (1) is arranged below the intermediate frequency furnace body (9) on the opposite side of the furnace body turning mechanism (10); the furnace body turning mechanism (10) is arranged vertically on one side of the intermediate frequency furnace body (9), and the intermediate frequency furnace body (9) can be turned along a furnace body turning axis (11) parallel to the ground; A support (2) having an adjustable height and a rotation axis connected to the base (1) and capable of rotating around a base rotation axis (3) parallel to the ground, and used to support the intermediate frequency furnace body (9) in a vertical direction; A first joint (4), a first end of which is rotatably connected to the support (2), and a second end of which is connected to the first end of the telescopic connecting rod (5); A telescopic connecting rod (5), a second end of which is connected to a first end of a second joint (6); A power source (7) is arranged outside the vacuum furnace smelting chamber and is fixedly mounted on a fixed sealing seat (8), with an output end thereof passing through the fixed sealing seat (8) and connected to a second end of the second joint (6); A fixed sealing seat (8) is fixedly mounted on the side wall of the vacuum furnace melting chamber.

2. The medium frequency furnace body turning support device in the vacuum furnace melting chamber according to claim 1, characterized in that: A height adjustment bolt is formed on the top of the support (2); The height adjustment nut is installed on the height adjustment bolt.

3. The medium frequency furnace body turning support device in the vacuum furnace melting chamber according to claim 1, characterized in that: The second end of the first joint (4) and the first end of the telescopic connecting rod (5) form a first turning threaded connection; The second end of the telescopic connecting rod (5) and the first end of the second joint (6) form a second turning threaded connection; The first turn and the second turn are opposite turns.

4. The medium frequency furnace body turning support device in the vacuum furnace melting chamber according to claim 1, characterized in that: The power source (7) is also electrically connected to the furnace body turning mechanism (10), and receives a turning electrical signal and a reset electrical signal sent by the furnace body turning mechanism (10) to perform a corresponding telescopic action.

5. The medium frequency furnace body turning support device in the vacuum furnace smelting chamber according to claim 4, characterized in that: Upon receiving the flipping electrical signal sent by the furnace flipping mechanism (10), the power source (7) retracts its output end; Upon receiving a reset electrical signal from the furnace body turning mechanism (10), the power source (7) extends out of its output end.

6. The medium frequency furnace body turning support device in the vacuum furnace melting chamber according to claim 1, characterized in that: The power source (7) is a cylinder.

Images