High-frequency quenching device
Through the design of the high-frequency quenching device, the problems of low hardness and wear resistance of bearing steel in traditional heat treatment processes are solved, and a more efficient quenching process is achieved, which improves the hardness and service life of the product.
Patent Information
- Application Number
- CN202420815049.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-04-19
AI Technical Summary
The existing heat treatment process of bearing steel has problems such as low hardness, wear resistance, and short service life. It is mainly due to the traditional slow heating and quenching method that causes oxidation and decarbonization of the surface of steel parts, affecting hardness and wear resistance.
Using a high-frequency quenching device, the induction heating area and liquid-through holes and liquid-out holes of the induction ring core are designed to achieve rapid heating and quenching, expand the quenching area, and improve the quenching efficiency.
It improves the hardness and service life of bearing steel, makes the product more wear-resistant, reduces the waste of manpower, material resources and material strength, and extends the bearing replacement cycle.
Smart Images
Figure CN222758271U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of quenching devices, in particular to a high-frequency quenching device. Background Art
[0002] Bearings are widely used in various light and heavy industrial fields. However, they are anxious in the industry because of serious technical problems such as poor quality, low hardness, poor wear resistance, short service life, waste and consumption. The main reason is that the traditional old heat treatment method has been maintained for many years in the heat treatment process, such as: bearing steel, quenching heating temperature can only be limited to below 830℃, and the whole is heated slowly. This method can only cause waste of manpower, material resources, and more serious slow heating. Oxidation and decarburization appear on the surface of the steel parts, which affects the surface hardness of the product. As a result, the hardness is low, and the whole is hard and brittle! Not wear-resistant, so it affects the service life, overall heating, overall quenching, this traditional and old process regulations, the rolling mill bearings formed are replaced every 170 hours. The hardness of the inside and outside of the cut product is basically the same, with little difference, not very hard, large deformation, and particularly brittle. If it is installed in a place with vibration, it often cracks. Summary of the invention
[0003] The utility model aims to solve the shortcomings in the prior art and proposes a high-frequency quenching device.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-frequency quenching device, including a shell, a support arm, and a support platform, one end of the support arm is fixedly connected to the shell, and the other end of the support arm is fixedly connected to the support platform; the shell has an inner hole, in which an induction coil inner core is fixedly embedded, and the induction coil inner core has an induction heating area; and a liquid through hole and a liquid outlet hole, both of which are connected to the induction coil inner core, so that the liquid sprayed from the liquid through hole enters the induction heating area, and the sprayed liquid enters the liquid outlet hole after returning to be discharged outside the induction heating area.
[0005] In one embodiment of the present application, the fixed connection method between the support arm and the shell includes welding and integral molding; the fixed connection method between the support arm and the support platform includes welding and integral molding.
[0006] In one embodiment of the present application, the liquid through hole passes through the support platform, the support arm and is fluidically connected to the induction heating area of the inner core of the induction coil, so that the quenching liquid enters the liquid through hole from the liquid inlet of the liquid through hole and sprays toward the induction heating area.
[0007] In one embodiment of the present application, the liquid outlet hole passes through the support platform and the support arm, and is fluidically connected to the induction heating area of the induction coil inner core, so that the quenching liquid falls onto the inner wall of the induction coil inner core and enters the liquid outlet hole, so that the quenching liquid is discharged from the induction heating area.
[0008] In one embodiment of the present application, the induction coil inner core comprises an inner core seat body, the inner core seat body has an induction heating area, the inner core seat body has a through hole, and the inner wall of the through hole forms the induction heating area.
[0009] In one embodiment of the present application, the induction coil inner core further comprises a fluid circulation member, and the fluid circulation member is fixedly embedded in the through hole of the inner core seat body, so that the fluid circulation member is fixedly installed in the inner core seat body.
[0010] In one embodiment of the present application, the fluid circulation member has a first through hole, the first through hole overlaps with the induction heating area, and the fluid circulation member is in fluid communication with the liquid through hole and the liquid outlet hole.
[0011] In one embodiment of the present application, a preset number of second through holes are provided on the fluid circulation member, and the second through holes are fluidically connected to the first through holes on the one hand, and fluidically connected to the liquid through hole and the liquid outlet hole on the other hand; the second through holes are evenly distributed on the fluid circulation member.
[0012] In one embodiment of the present application, the induction coil inner core further includes a first fixing ring and a second fixing ring, each of the first fixing ring and the second fixing ring has a mounting through hole, and both ends of the fluid circulation member are respectively fixedly installed in the mounting through holes of the first fixing ring and the second fixing ring, so that the fluid circulation member is clamped between the first fixing ring and the second fixing ring.
[0013] In one embodiment of the present application, a first boss is provided on the first fixing ring, and a second boss is provided on the second fixing ring. The first boss and the second boss are respectively embedded in the inner wall of the inner hole of the outer shell, so that the inner core of the induction coil is fixedly mounted on the outer shell.
[0014] The beneficial effects of the present application are as follows: the high-frequency quenching device provided by the present application has a simple structure, the liquid through hole and the second through hole on the inner core of the induction coil are fluidically connected, the liquid sprayed through the liquid through hole is sprayed from the second through hole on the inner core of the induction coil to the induction heating area, so that the quenching area is expanded and the quenching efficiency is improved, and the product quenched by the high-frequency quenching device has high hardness and long service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1A front view of a high-frequency quenching device provided in one embodiment of the utility model.
[0016] Figure 2 for Figure 1 Left view of .
[0017] Figure 3 for Figure 1 Top view of the .
[0018] Figure 4 The utility model provides a schematic structural diagram of an induction coil inner core of a high-frequency quenching device.
[0019] Figure 5 for Figure 4 A cross-sectional view of the inner core of an induction coil of a high-frequency quenching device taken along line AA.
[0020] Figure 6 Another structural schematic diagram of the inner core of the induction coil of a high-frequency quenching device provided by the utility model. DETAILED DESCRIPTION
[0021] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.
[0022] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.
[0023] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).
[0024] Please refer to Figure 1-6The present application provides a high-frequency quenching device, which includes a shell 1, a support arm 2, and a support platform 3. One end of the support arm 2 is fixedly connected to the shell 1, and the other end of the support arm 2 is fixedly connected to the support platform 3; the shell 1 has an inner hole 10, in which an induction coil core 4 is fixedly embedded, and the induction coil core 4 has an induction heating area 40; and a liquid through hole 5 and a liquid outlet hole 6, both of which are connected to the induction coil core 4, so that the liquid sprayed from the liquid through hole 5 enters the induction heating area 40, and the sprayed liquid enters the liquid outlet hole 6 after returning to be discharged to the outside of the induction heating area 40. In this way, the induction coil core 4 is energized and heated to a preset temperature. The product to be quenched is inserted into the induction heating area 40 of the induction coil core 4 and heated to a preset temperature. Liquid is sprayed onto the heated product through the liquid through hole 5, thereby quenching the product. The sprayed liquid cools the heated product and then falls onto the induction coil core 4, and then enters the liquid outlet hole 6 and is discharged to the induction heating area 40, thereby completing the entire quenching process.
[0025] In some embodiments of the present application, the fixed connection method between the support arm 2 and the housing 1 includes welding and integral molding; the fixed connection method between the support arm 2 and the support platform 3 includes welding and integral molding.
[0026] In some embodiments of the present application, the liquid through hole 5 passes through the support platform 3, the support arm 2 and is fluidically connected to the induction heating area 40 of the induction coil inner core 4, so that the quenching liquid enters the liquid through hole 5 from the liquid inlet of the liquid through hole 5 and is sprayed toward the induction heating area 40.
[0027] In some embodiments of the present application, the liquid outlet hole 6 passes through the support platform 3 and the support arm 2, and is fluidically connected to the induction heating area 40 of the induction coil inner core 4, so that the quenching liquid falls onto the inner wall of the induction coil inner core 4 and enters the liquid outlet hole 6, so that the quenching liquid is discharged from the induction heating area 40.
[0028] In some embodiments of the present application, the induction coil inner core 4 includes an inner core seat body 41 , the inner core seat body 41 has an induction heating area 40 , and the inner core seat body 41 has a through hole, and the inner wall of the through hole forms the induction heating area 40 .
[0029] In some embodiments of the present application, the induction coil inner core 4 further includes a fluid circulation member 7 , and the fluid circulation member 7 is fixedly embedded in the through hole of the inner core seat body 41 , so that the fluid circulation member 7 is fixedly installed in the inner core seat body 41 .
[0030] In some embodiments of the present application, the fluid circulation member 7 has a first through hole 70 , the first through hole 70 overlaps with the induction heating area 40 , and the fluid circulation member 7 is in fluid communication with the liquid through hole 5 and the liquid outlet hole 6 .
[0031] In some embodiments of the present application, a preset number of second through holes 71 are provided on the fluid circulation member 7, and the second through holes 71 are in fluid communication with the first through hole 70 on one hand, and in fluid communication with the liquid through hole 5 and the liquid outlet hole 6 on the other hand; the second through holes 71 are evenly distributed on the fluid circulation member 7. In this way, the product to be quenched is inserted into the first through hole 70 and heated to a preset temperature value, and then the quenching liquid is sprayed out through the liquid through hole 5, and the quenching liquid enters the first through hole 70 through all the second through holes 71 and sprays toward the product to be quenched. After quenching, the quenching liquid flows to the second through hole 71, and then flows into the liquid outlet hole 6 for recovery of the quenching liquid.
[0032] In some embodiments of the present application, the induction coil inner core 4 further includes a first fixing ring 41 and a second fixing ring 42, each of which has a mounting through hole (not shown), and both ends of the fluid circulation member 7 are fixedly mounted in the mounting through holes of the first fixing ring 41 and the second fixing ring 42, respectively, so that the fluid circulation member 7 is clamped between the first fixing ring 41 and the second fixing ring 42. The fluid circulation member 7 and the first fixing ring 41 and the second fixing ring 42 are fixedly connected together by interference fit.
[0033] In some embodiments of the present application, a first boss 411 is provided on the first fixing ring 41, and a second boss 421 is provided on the second fixing ring 42. The first boss 411 and the second boss 421 are respectively embedded in the inner wall of the inner hole 10 of the outer shell 1, so that the induction coil inner core 4 is fixedly installed on the outer shell 1.
[0034] The high-frequency quenching device provided by the present application has a simple structure. The liquid through hole and the second through hole on the inner core of the induction coil are fluidically connected. The liquid sprayed through the liquid through hole is sprayed from the second through hole on the inner core of the induction coil toward the induction heating area, so that the quenching area is expanded and the quenching efficiency is improved. The product quenched by the high-frequency quenching device has high hardness and long service life.
[0035] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A high frequency quenching device, characterized in that: It includes an outer shell, a support arm, and a support platform, wherein one end of the support arm is fixedly connected to the outer shell, and the other end of the support arm is fixedly connected to the support platform; the outer shell has an inner hole, in which an induction coil inner core is fixedly embedded, and the induction coil inner core has an induction heating area; and a liquid through hole and a liquid outlet hole, both of which are connected to the induction coil inner core, so that the liquid sprayed from the liquid through hole enters the induction heating area, and the sprayed liquid enters the liquid outlet hole after returning to be discharged outside the induction heating area.
2. The high-frequency quenching device according to claim 1, characterized in that: The fixed connection method between the support arm and the shell includes welding and integral molding; the fixed connection method between the support arm and the support platform includes welding and integral molding.
3. The high-frequency quenching device according to claim 2, characterized in that: The liquid through hole passes through the support platform, the support arm and is in fluid communication with the induction heating area of the inner core of the induction coil, so that the quenching liquid enters the liquid through hole from the liquid inlet of the liquid through hole and sprays toward the induction heating area.
4. The high-frequency quenching device according to claim 3, characterized in that: The liquid outlet hole passes through the support platform and the support arm, and is in fluid communication with the induction heating area of the induction coil inner core, so that the quenching liquid falls onto the inner wall of the induction coil inner core and enters the liquid outlet hole, so that the quenching liquid is discharged from the induction heating area.
5. The high-frequency quenching device according to claim 4, characterized in that: The inner core of the induction coil comprises an inner core seat body, the inner core seat body has an induction heating area, the inner core seat body has a through hole, and the inner wall of the through hole forms the induction heating area.
6. The high-frequency quenching device according to claim 5, characterized in that: The induction coil inner core also includes a fluid circulation member, and the fluid circulation member is fixedly embedded in the through hole of the inner core seat body, so that the fluid circulation member is fixedly installed in the inner core seat body.
7. The high-frequency quenching device according to claim 6, characterized in that: The fluid flow member has a first through hole, the first through hole overlaps with the induction heating area, and the fluid flow member is in fluid communication with the liquid through hole and the liquid outlet hole.
8. The high-frequency quenching device according to claim 7, characterized in that: The fluid circulation member is provided with a preset number of second through holes, which are fluidically connected to the first through holes on one hand, and fluidically connected to the liquid through hole and the liquid outlet hole on the other hand; the second through holes are evenly distributed on the fluid circulation member.
9. The high-frequency quenching device according to claim 8, characterized in that: The induction coil inner core also includes a first fixing ring and a second fixing ring. The first fixing ring and the second fixing ring each have a mounting through hole. Both ends of the fluid flow component are fixedly mounted in the mounting through holes of the first fixing ring and the second fixing ring, respectively, so that the fluid flow component is clamped between the first fixing ring and the second fixing ring.
10. The high-frequency quenching device according to claim 9, characterized in that: The first fixing ring is provided with a first boss, the second fixing ring is provided with a second boss, and the first boss and the second boss are respectively embedded in the inner wall of the inner hole of the shell, so that the inner core of the induction coil is fixedly mounted on the shell.