CN216639570U

CN216639570U - Sectional type heating quenching inductor

Info

Publication number: CN216639570U
Application number: CN202123209022.3U
Authority: CN
Inventors: 王宏; 张璟; 王雅楠
Original assignee: Xi'an Zhongyibo Microelectronics Co ltd
Current assignee: Xi'an Zhongyibo Microelectronics Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-31
Anticipated expiration: 2031-12-20

Abstract

The utility model provides a sectional type heating quenching inductor, which comprises a supporting column, an inductor and a cooling pipe; the two support columns are vertically arranged in parallel, the inductor is of a spiral structure and is vertically fixed between the two support columns through a connecting piece, the cooling pipe is arranged along the lower side of the inductor, water spray holes are uniformly formed in the surface of an inner ring of the cooling pipe, and first water receiving openings are formed in the upper end and the lower end of the cooling pipe; the inductor is divided into a plurality of sections, and wiring ends are arranged at the upper end and the lower end of each section of the inductor. The sectional type heating quenching inductor can set the current and frequency of each inductor according to the diameter of the variable diameter workpiece passing through different diameter sections of each inductor, so that the temperature distribution of the variable diameter workpiece is uniform during electromagnetic induction heating, and the consistency of the heat treatment quality of the variable diameter workpiece is ensured.

Description

Sectional type heating quenching inductor

Technical Field

The utility model belongs to the field of heat treatment equipment, and particularly relates to a sectional type heating quenching inductor.

Background

The inventor has previously applied for a patent with the patent number of 200820222226.6 named as 'integral penetration quenching inductor', the integral penetration quenching inductor mainly adopts an integral penetration quenching mode, can heat and preserve heat of integral roller workpieces, is uniform in heating, short in high-temperature heating time, can carry out all-dimensional liquid spraying quenching on the roller workpieces, is energy-saving and environment-friendly, high in working efficiency, does not need to move in the heating and quenching process of the roller workpieces, is small in burning loss and small in deformation of the quenched roller workpieces, and is good in internal metallographic structure and high in workpiece quality. However, with the diversification of the structure of the processed parts, especially when some reducing workpieces with shaft shoulders are subjected to heat treatment, the induction heating degrees of different diameter sections of the reducing workpieces are different due to different diameters of the reducing workpieces, which is not beneficial to ensuring the consistency of the heat treatment quality of the reducing workpieces.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is an object of the present invention to provide a segmented induction heating and quenching inductor, which overcomes the above problems or at least partially solves or alleviates the above problems.

The utility model provides a sectional type heating quenching inductor, which comprises a supporting column, an inductor and a cooling pipe; the two support columns are vertically arranged in parallel, the inductor is of a spiral structure and is vertically fixed between the two support columns through a connecting piece, the cooling pipe is arranged along the lower side of the inductor, water spray holes are uniformly formed in the surface of an inner ring of the cooling pipe, and first water receiving openings are formed in the upper end and the lower end of the cooling pipe;

the inductor is divided into a plurality of sections, and wiring ends are arranged at the upper end and the lower end of each section of the inductor.

The utility model also has the following optional features.

Optionally, the inductor is a hollow copper pipe, and the upper end and the lower end of each inductor are provided with second water receiving ports.

Optionally, the cross section of the tube body of the inductor is rectangular.

Optionally, the cooling pipe is a rectangular hollow copper pipe having the same width as the inductor, and the upper surface of the cooling pipe is closely attached to the lower surface of each section of the inductor.

The sectional type heating quenching inductor adopts a multi-section inductor structure, the two ends of each section of inductor are respectively provided with a wiring end, the magnitude and the frequency of current introduced into each inductor can be set according to the fact that the variable diameter workpiece penetrates through different diameter sections of each inductor, so that magnetic fields with different strengths are generated in the different diameter sections of the variable diameter workpiece, and finally the temperature distribution is uniform during electromagnetic induction heating of the variable diameter workpiece, so that the consistency of the heat treatment quality of the variable diameter workpiece is guaranteed.

Drawings

FIG. 1 is a schematic structural view of a segmented induction heating and quenching apparatus according to the present invention.

In the above figures: 1, supporting a column; 2, an inductor; 201 a terminal; 202 a second water receiving port; 3, cooling the pipe; 301 water spray hole; 302 a first water receiving port; 4, connecting pieces.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Detailed Description

Example 1

Referring to fig. 1, an embodiment of the present invention provides a sectional quenching inductor, which includes a supporting pillar 1, an inductor 2, and a cooling pipe 3; the two support columns 1 are vertically arranged in parallel, the inductor 2 is of a spiral structure and is vertically fixed between the two support columns 1 through a connecting piece 4, the cooling pipe 3 is arranged along the lower side of the inductor 2, water spray holes 301 are uniformly formed in the surface of the inner ring of the cooling pipe 3, and first water receiving openings 302 are formed in the upper end and the lower end of the cooling pipe 3;

the inductor 2 is divided into a plurality of sections, and the upper end and the lower end of the inductor 2 are provided with wiring ends 201.

The inductor 2 is generally divided into three sections, heat treatment is carried out on a variable-diameter workpiece with a thick middle part and thin two sides, the three sections of inductors 2 are fixed between two supporting columns 1, the workpiece is hoisted at the axis position in the three sections of inductors 2, the diameter of the spiral structure of the three sections of inductors 2 is unchanged, and the thick middle part and the thin two ends of the workpiece are ensured, so that the size of the current or the frequency of the inductor 2 corresponding to the middle part of the workpiece is larger than that of the current or the frequency of the inductors 2 corresponding to the two ends of the workpiece, the induction heating temperature of the middle part and the two ends of the workpiece is ensured to be the same, and when quenching is carried out after heating is stopped, the temperature is uniform, the quenching consistency is good, and the workpiece quality is high.

Example 2

Referring to fig. 1, on the basis of embodiment 1, the inductor 2 is a hollow copper pipe, and the upper end and the lower end of each inductor 2 are both provided with a second water receiving port 202.

Inductor 2 adopts hollow copper pipe, and copper product resistance is little, and is electrically conductive effectual, and it is big to produce magnetic field, and hollow copper pipe structure is convenient to connect water pump and cooling water pool through the second water receiving mouth 202 at upper and lower both ends, and cooling water constantly flows through from inductor 2 inside under the drive of water pump, forms cooling cycle with cooling water pool, can avoid inductor 2 overheated melting.

Example 3

Referring to fig. 1, on the basis of embodiment 2, the cross section of the tube body of the inductor 2 is rectangular.

The cross section of the tube body of the inductor 2 is rectangular, connecting pieces 4 such as screws or pins can be conveniently welded on the outer side surface of the inductor 2, the end parts of the connecting pieces 4 such as the screws or the pins transversely extend out, the connecting pieces penetrate through transverse positioning holes in the supporting column 1 and then are connected with nuts or bolts, and the supporting column 1 is made of insulating materials such as bakelite.

Example 4

Referring to fig. 1, on the basis of embodiment 3, the cooling pipe 3 is a rectangular hollow copper pipe having the same width as the inductor 2, and an upper surface of the cooling pipe 3 is closely attached to a lower surface of each section of the inductor 2.

The cooling pipe 3 and the inductor 2 are made of the same material and have the same cross section shape, the upper surface of the cooling pipe 3 is welded with the lower surface of the inductor 2, and the cooling pipe 3 does not lead water before quenching and cooling an induction-heated workpiece, can be used for conducting electricity for the inductor 2 and is cooled by cooling water in the inductor 2. Only when the workpiece needs quenching cooling after the inductor 2 is powered off, the first water receiving ports 302 at the upper end and the lower end of the cooling pipe 3 start to be filled with water, and the workpiece is sprayed with water through the water spraying holes 301 for cooling.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.

Claims

1. The sectional type heating quenching inductor is characterized by comprising a supporting column (1), an inductor (2) and a cooling pipe (3); the two support columns (1) are vertically arranged in parallel, the inductor (2) is of a spiral structure and is vertically fixed between the two support columns (1) through a connecting piece (4), the cooling pipe (3) is arranged along the lower side of the inductor (2), water spray holes (301) are uniformly formed in the surface of an inner ring of the cooling pipe (3), and first water receiving openings (302) are formed in the upper end and the lower end of the cooling pipe (3);

the inductor (2) is divided into multiple sections, and the upper end and the lower end of each section of the inductor (2) are provided with wiring terminals (201).

2. The segmented induction heating and quenching device according to claim 1, wherein the induction body (2) is a hollow copper pipe, and second water receiving ports (202) are arranged at the upper end and the lower end of each induction body (2).

3. The segmented induction heating and quenching inductor according to claim 2, characterized in that the cross section of the tube body of the inductor body (2) is rectangular.

4. The segmented induction heating and quenching inductor according to claim 3, characterized in that the cooling pipe (3) is a rectangular hollow copper pipe with the same width as the inductor (2), and the upper surface of the cooling pipe (3) is closely attached to the lower surface of each segment of the inductor (2).