Vacuum wall passing heating device

Abstract

The utility model belongs to the field of induction heating, and particularly relates to a vacuum wall-passing heating device which comprises a vacuum chamber, a wall-passing plate 9 is arranged on one side of the vacuum chamber, a transformer 2 is arranged on the outer side of the wall-passing plate 9, the transformer 2 is connected with one end of a circuit, and the other end of the circuit penetrates through the wall-passing plate 9, enters the vacuum chamber and is connected with an inductor 12. The device is characterized in that the wall-passing plate 9 is provided with a vacuum extension cavity 8 towards the transformer 2, a circuit penetrates through the vacuum extension cavity 8 to enter the vacuum chamber, and compared with the prior art, the vacuum chamber is provided with the vacuum extension cavity towards the transformer, so that the transformer is far away from a processing area, and the circuit of the transformer is coated, protected and prevented from being exposed.

Description

Technical Field

[0001] The utility model belongs to the field of induction heating, and in particular relates to a vacuum wall heating device. Background Art

[0002] With the development of industry, some special workpieces require heat treatment in a vacuum environment. However, traditional open flame heating and contact heating are not suitable for heat treatment in a vacuum environment. Electromagnetic induction heating, due to its lack of open flame and contact, is suitable for heating in a vacuum environment.

[0003] CN202122434895.8 discloses a vacuum-protected high-frequency induction heating device, comprising a vacuum box and an induction coil connected to a transformer and extending into the vacuum box. The disadvantage of this structure is that the transformer is either close to the vacuum box, that is, close to the heat source, which poses a safety hazard, or if the transformer is kept away from the vacuum box, the circuit connected to the coil will be excessively exposed to the external environment, which also poses a safety hazard. Therefore, it is necessary to propose a solution that can keep the transformer away from the vacuum box while protecting the circuit. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a vacuum wall heating device.

[0005] The purpose of the present utility model is achieved in the following manner: a vacuum wall heating device includes a vacuum chamber, one side of the vacuum chamber is a wall plate 9, a transformer 2 is arranged on the outside of the wall plate 9, the transformer 2 is connected to one end of the circuit, and the other end of the circuit passes through the wall plate 9 into the vacuum chamber and is connected to the inductor 12, the wall plate 9 is provided with a vacuum extension cavity 8 facing the transformer 2, and the circuit passes through the vacuum extension cavity 8 into the vacuum chamber.

[0006] Furthermore, a bracket 3 is provided in front of the transformer 2, a flange 1 4 is provided on the side of the bracket 3, a flange 2 5 is provided at one end of the vacuum extension chamber 8, and the flange 2 5 and the flange 1 4 are sealed and fixedly connected; a flange 3 15 is provided at the other end of the vacuum extension chamber 8, and the flange 3 15 and the wall plate 9 are sealed and fixedly connected; the electrical output end 13 of the transformer 2 is fixedly connected to the fixing rod 14, one end of the fixing rod 14 is fixedly connected to one end of the connecting rod 7, the connecting rod 7 passes through the bracket 3 and is sealed and connected to the bracket 3, and a through hole matching the vacuum extension chamber 8 is provided on the wall plate 9, and a positioning plate 10 is fixedly connected to the through hole, and the other end of the connecting rod 7 passes through the positioning plate 10 and is fixedly connected to the inductor 12.

[0007] Furthermore, a sealing gasket is provided between flange 2 5 and flange 1 4; a sealing gasket is provided between flange 3 15 and the wall plate 9; an external thread 16 is provided on the outer surface of the connecting rod 7, and a baffle 17 is fixed on the connecting rod 7 at one end of the external thread 16; an internal thread matching the external thread 16 is provided on the bracket 3, a sealing layer is provided between the external thread 16 and the internal thread, and a sealing gasket is provided between the baffle 17 and the bracket 3.

[0008] Furthermore, the inductor 12 is a coil structure made of a hollow tube, and the fixing rod 14 and the connecting rod 7 are two, and both are hollow tubes;

[0009] One end of the sensor 12 is connected to one end of a connecting rod 7, the other end of the connecting rod 7 is connected to one end of a fixing rod 14, and the other end of the fixing rod 14 is connected to the water inlet waterway;

[0010] The other end of the sensor 12 is connected to one end of another connecting rod 7, the other end of the connecting rod 7 is connected to one end of another fixing rod 14, and the other end of the fixing rod 14 is connected to the water outlet waterway, so as to form a complete waterway;

[0011] One of the two fixing rods 14 is fixedly connected to the positive pole of the electrical output terminal 13 of the transformer 2 , and the other of the two fixing rods 14 is fixedly connected to the negative pole of the electrical output terminal 13 of the transformer 2 , forming an electrical circuit.

[0012] Compared with the prior art, the vacuum chamber of the utility model is provided with a vacuum extension cavity toward the transformer, which not only keeps the transformer away from the processing area, but also covers and protects the transformer circuit from being exposed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a vacuum wall heating device;

[0014] Figure 2 This is a partial enlarged view of the part between the transformer and the bracket;

[0015] Figure 3 This is a partial enlarged view of the wall plate;

[0016] Figure 4 It is a structural diagram of the entire structural circuit and water channel.

[0017] Among them, 1 channel steel, 2 transformer, 3 bracket, 4 flange one, 5 flange two, 6 through hole, 7 connecting rod, 8 vacuum chamber, 9 wall plate, 10 positioning plate, 11 positioning hole, 12 sensor, 13 electrical output end, 14 fixing rod, 15 flange three, 16 external thread, 17 baffle, 18 flange five, 19 flange six. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the present invention, unless otherwise expressly specified and limited, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0020] As attached Figure 1 As shown, a vacuum wall heating device includes a vacuum chamber, one side of the vacuum chamber is a wall plate 9, and the wall plate 9 refers to the plate body on one side of the vacuum chamber. In order to conveniently represent the overall structure, the figure no longer shows the complete vacuum chamber structure, and only shows part of the wall plate 9 structure, wherein the left side of the wall plate 9 is used as the outside of the vacuum chamber, and the right side of the wall plate 9 is used as the inside of the vacuum chamber. A transformer 2 is arranged on the outside of the wall plate 9, and the bottom of the transformer 2 is fixedly connected to two or more channel steels 1, and the top of the channel steel 1 is fixedly connected to the ground. The transformer 2 is connected to one end of the circuit, and the other end of the circuit passes through the wall plate 9 into the vacuum chamber and is connected to the inductor 12. The wall plate 9 is provided with a vacuum extension cavity 8 facing the transformer 2, and the circuit passes through the vacuum extension cavity 8 into the vacuum chamber.

[0021] Further, as attached Figure 1-3As shown, a bracket 3 is provided in front of the transformer 2, and the bracket 3 can be a whole plate structure fixed to the ground. A flange 1 4 is provided on the side of the bracket 3, and a flange 2 5 is provided at one end of the vacuum extension chamber 8. The flange 2 5 and the flange 1 4 are sealed and fixedly connected; a flange 3 15 is provided at the other end of the vacuum extension chamber 8, and the flange 3 15 is sealed and fixedly connected to the wall plate 9; the electrical output end 13 of the transformer 2 is fixedly connected to the fixing rod 14, and one end of the fixing rod 14 is fixedly connected to one end of the connecting rod 7, and the connecting rod 7 passes through the bracket 3 and is sealed and connected to the bracket 3. A through hole matching the vacuum extension chamber 8 is provided on the wall plate 9, and a positioning plate 10 is fixedly connected to the through hole. The other end of the connecting rod 7 passes through the positioning hole 11 on the positioning plate 10 and is fixedly connected to the inductor 12. The positioning plate 10 is used to support the connecting rod 7. The positioning plate 10 can be a plate that passes horizontally through the through hole on the wall plate 9, and its two ends are fixedly connected to the wall plate 9.

[0022] Furthermore, a sealing gasket is arranged between flange 2 5 and flange 1 4; a sealing gasket is arranged between flange 3 15 and the wall plate 9. The sealing gasket itself is a prior art and will not be described in detail here; an external thread 16 is arranged on the outer surface of the connecting rod 7, and a baffle 17 is fixed on the connecting rod 7 at one end of the external thread 16; the through hole 6 on the bracket 3 is provided with an internal thread matching the external thread 16, and a sealing layer is arranged between the external thread 16 and the internal thread. In detail, it means that during installation, a sealing tape is wrapped around the external thread 16, and then the external thread 16 is tightened to match the internal thread to form a layer of seal, and a sealing gasket is arranged between the baffle 17 and the bracket 3 and is tightly attached to form a continuous second layer of seal.

[0023] Further, as attached Figure 1 、 2 As shown in FIG4 , the inductor 12 is a coil structure made of a hollow tube, and the fixing rod 14 and the connecting rod 7 are two in number, and both are hollow tubes;

[0024] One end of the sensor 12 is connected to the flange 5 18 of one end of a connecting rod 7 through the flange 6 19. The other end of the connecting rod 7 is connected to one end of a fixing rod 14. The other end of the fixing rod 14 is as shown in FIG. Figure 2 Located outside the vacuum chamber and connected to the water inlet;

[0025] The other end of the sensor 12 is connected to one end of another connecting rod 7, the other end of the connecting rod 7 is connected to one end of another fixing rod 14, and the other end of the fixing rod 14 is connected to the water outlet waterway, so as to form a complete waterway;

[0026] One of the two fixing rods 14 is fixedly connected to the positive pole of the electrical output terminal 13 of the transformer 2 , and the other of the two fixing rods 14 is fixedly connected to the negative pole of the electrical output terminal 13 of the transformer 2 , forming an electrical circuit.

[0027] Other advantages:

[0028] 1. This structure achieves good sealing performance through the cooperation of flange 1 4, flange 2 5, flange 4 17 and sealing gasket.

[0029] 2. The fixing base 13 outside the vacuum chamber penetrates the outer wall of the vacuum furnace at the location of the thread 16 and the flange 17. It is connected to the connecting rod 7 inside the vacuum chamber through the thread 16 and the flange 17, achieving electrical and water connections between the fixing base 13 and the connecting rod 7. This simple structure is easy to manufacture and has reliable performance, meeting the requirements of industrial field use.

[0030] 3. Ensure the processing environment of the workpiece.

[0031] 4. The sensor and the workpiece have good fit, ensuring the heat treatment quality of the workpiece.

[0032] 5. Simple structure, easy to install and maintain.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, and these should also be regarded as the scope of protection of the present invention.

Claims

1. A vacuum wall heating device, comprising a vacuum chamber, a wall plate (9) on one side of the vacuum chamber, a transformer (2) provided outside the wall plate (9), the transformer (2) connected to one end of a circuit, the other end of the circuit passing through the wall plate (9) into the vacuum chamber and connected to an inductor (12), characterized in that: The wall plate (9) is provided with a vacuum extension cavity (8) facing the transformer (2), and the circuit passes through the vacuum extension cavity (8) and enters the vacuum chamber.

2. The vacuum wall heating device according to claim 1, characterized in that: A bracket (3) is provided in front of the transformer (2), a flange 1 (4) is provided on the side of the bracket (3), a flange 2 (5) is provided at one end of the vacuum extension chamber (8), and the flange 2 (5) and the flange 1 (4) are sealed and fixedly connected; a flange 3 (15) is provided at the other end of the vacuum extension chamber (8), and the flange 3 (15) and the wall plate (9) are sealed and fixedly connected; the electric output end (13) of the transformer (2) is fixedly connected to the fixing rod (14), and one end of the fixing rod (14) is fixedly connected to one end of the connecting rod (7), and the connecting rod (7) passes through the bracket (3) and is sealed and connected to the bracket (3), and a through hole matching the vacuum extension chamber (8) is provided on the wall plate (9), and the positioning plate (10) is fixedly connected to the through hole, and the other end of the connecting rod (7) passes through the positioning plate (10) and is fixedly connected to the inductor (12).

3. The vacuum wall heating device according to claim 2, characterized in that: A sealing gasket is provided between the second flange (5) and the first flange (4); a sealing gasket is provided between the third flange (15) and the wall plate (9); an external thread (16) is provided on the outer surface of the connecting rod (7), and a baffle (17) is fixed on the connecting rod (7) at one end of the external thread (16); an internal thread matching the external thread (16) is provided on the bracket (3), a sealing layer is provided between the external thread (16) and the internal thread, and a sealing gasket is provided between the baffle (17) and the bracket (3).

4. The vacuum wall heating device according to claim 2, characterized in that: The inductor (12) is a coil structure made of a hollow tube, and the fixing rod (14) and the connecting rod (7) are two, and both are hollow tubes; One end of the sensor (12) is connected to one end of a connecting rod (7), the other end of the connecting rod (7) is connected to one end of a fixing rod (14), and the other end of the fixing rod (14) is connected to the water inlet channel; The other end of the sensor (12) is connected to one end of another connecting rod (7), the other end of the connecting rod (7) is connected to one end of another fixing rod (14), and the other end of the fixing rod (14) is connected to the water outlet waterway, so as to form a complete waterway; One of the two fixing rods (14) is fixedly connected to the positive pole of the electric output terminal (13) of the transformer (2), and the other of the two fixing rods (14) is fixedly connected to the negative pole of the electric output terminal (13) of the transformer (2), forming an electric circuit.

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