CN216998509U

CN216998509U - Quenching inductor suitable for tooth socket

Info

Publication number: CN216998509U
Application number: CN202123392697.6U
Authority: CN
Inventors: 陈杰华; 王聪; 左丽萍; 刘国强; 高俊光; 张文琦; 高宇
Original assignee: Zhengzhou Coal Machinery Intelligent Working Face Technology Co ltd
Current assignee: Zhengzhou Coal Machinery Intelligent Working Face Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-19
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to a quenching inductor suitable for a tooth socket, which comprises a heating inductor, a protection cooler and a quenching cooler, wherein the heating inductor comprises an upper guide plate, a lower guide plate and a conductive plate connected with the end part of the upper guide plate and the end part of the lower guide plate, the shape of the conductive plate is matched with that of the tooth socket, symmetrical arc-shaped depressions are arranged at the connecting part of the conductive plate, the upper guide plate and the lower guide plate, the protection cooler is positioned at the outer side of the heating inductor and used for spraying cooling liquid to the outer side surface of the tooth socket, and the quenching cooler is positioned below the heating inductor and used for spraying cooling liquid to the tooth socket, the tooth root and the outer side surface of the tooth socket.

Description

Quenching inductor suitable for tooth socket

Technical Field

The utility model belongs to the technical field of quenching inductors, and particularly relates to a quenching inductor suitable for a tooth socket.

Background

With the development of industrial technology, higher requirements are put forward on the aspects of bearing capacity, quality and the like of the gear, and the quenching inductor which scans along the tooth socket is a tool for hardening the working surface of the gear at present. Due to the influence of the characteristic of the induction heating sharp angle effect of the gear tooth profile, the situation that the tooth root is not hardened and the side surface of the tooth socket is overheated and overburnt easily occurs in the quenching process, and bending fatigue cracks are easily generated in the subsequent use process, so that the fault rate of the induction quenched gear in the service period is gradually increased. Especially for heavy-duty gearwheels, the problem of cracking of the gear with unhardened tooth roots is more likely to occur in the event of an unbalanced load. In addition, due to the unique structure of the gear, the tooth top obviously protrudes out of the tooth root, the cooling rate of the tooth top is obviously higher than that of the tooth root in the quenching and cooling process, and the deformation is caused by the uneven cooling of the tooth top and the tooth root. Therefore, how to improve the technical level of the tooth socket induction quenching is a technical problem in front of heat treatment workers.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, a quenching inductor suitable for a tooth space has been proposed.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a quenching inductor suitable for tooth's socket, includes heating inductor, protection cooler and quenching cooler, the heating inductor includes baffle, bottom guide and connects the current conducting plate of baffle tip and bottom guide tip, the shape of current conducting plate matches with the shape of tooth's socket, and the current conducting plate is sunken with the arc that last baffle, bottom guide junction were equipped with the symmetry, the protection cooler is located the outside of heating inductor for spray the coolant liquid to the tooth's socket lateral surface, the quenching cooler is located the below of heating inductor, is used for spraying the coolant liquid to tooth's socket, tooth root and tooth's socket lateral surface.

Furthermore, a magnetizer is arranged between the conductive plate and the upper guide plate and between the conductive plate and the lower guide plate.

Furthermore, the conducting plate, the upper guide plate and the lower guide plate are all made of red copper.

Further, the magnetizer is a silicon steel sheet.

Furthermore, one ends of the upper guide plate and the lower guide plate, which are far away from the current conducting plate, are fixedly connected with a quenching transformer, and the quenching transformer is connected with a power supply through a cable.

Further, the protection cooler is symmetrically arranged on the outer side of the heating inductor.

Further, the protection cooler is communicated with a first cooling liquid pipe, and the quenching cooler is communicated with a second cooling liquid pipe.

Furthermore, the protection cooler is provided with a first spraying surface opposite to the outer side surface of the tooth socket, and first spraying holes are uniformly distributed in the first spraying surface.

Preferably, the diameter of the first injection hole is 0.5-0.8mm, and the center distance between adjacent first injection holes is 1.0-1.2 mm.

Furthermore, the first spraying surface is an inclined surface and is parallel to the outer side surface of the tooth socket.

Further, the quenching cooler is provided with a second spraying surface, and second spraying holes are uniformly distributed on the second spraying surface.

Preferably, the diameter of the second injection hole is 0.5-0.8mm, and the center distance between adjacent second injection holes is 1.0-1.2 mm.

Furthermore, the clearance between the current-conducting plate and the tooth root is 1-2mm, the clearance between the current-conducting plate and the round corner of the tooth root is 1-1.5mm, the clearance between the current-conducting plate and the reference circle of the gear is 1-2mm, and the clearance between the current-conducting plate and the tooth top is 5-6 mm.

The utility model has the beneficial effects that:

1. the current conducting plate is provided with symmetrical arc-shaped recesses at the joints of the upper guide plate and the lower guide plate, so that the coupling strength between the quenching heating working surface and the side surface of the tooth socket can be reduced, the problem of overheating and melting of the side surface of the tooth socket is prevented, full tooth width hardening is realized, and the bearing capacity and the quality of the gear are improved.

2. In the quenching and cooling stage, the protection cooler is adopted to carry out heat exchange cooling on the outer side surface of the tooth groove, and meanwhile, the quenching cooler is adopted to carry out heat exchange cooling on the tooth groove, the tooth root and the outer side surface of the tooth groove, so that the cooling rate of the tooth root and the side surface of the tooth groove is obviously improved, and the problem of uneven cooling of a quenching layer can be effectively solved.

3. The magnetic field of the quenching heating working surface is enhanced by the magnetizer, and the heating efficiency is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a front view of the present invention.

In the drawings: 1-upper guide plate, 2-lower guide plate, 3-conductive plate, 4-magnetizer, 5-protective cooler, 6-quenching cooler, 7-first cooling liquid pipe, 8-second cooling liquid pipe, 9-first spraying surface, 10-arc depression, 11-first spray hole, 12-second spraying surface and 13-second spray hole.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions of the present invention are described below clearly and completely with reference to the accompanying drawings of the present invention, and based on the embodiments in the present application, other similar embodiments obtained by a person of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustrating the present invention and not for limiting the present invention.

The utility model is further described with reference to the drawings and the preferred embodiments.

The first embodiment is as follows:

as shown in fig. 1 to 4, a quenching inductor suitable for a tooth socket comprises a heating inductor, a protection cooler 5 and a quenching cooler 6, wherein the heating inductor is used for quenching and heating the tooth socket, the protection cooler 5 is used for spraying cooling liquid to the outer side surface of the tooth socket, and the quenching cooler 6 is used for spraying cooling liquid to the tooth socket, the tooth root and the outer side surface of the tooth socket.

The heating inductor comprises an upper guide plate 1, a lower guide plate 2 and a current-conducting plate 3 which is connected with the end part of the upper guide plate 1 and the end part of the lower guide plate 2, wherein the shape of the current-conducting plate 3 is matched with the shape of the tooth socket, symmetrical arc-shaped recesses 10 are formed at the connection part of the current-conducting plate 3, the upper guide plate 1 and the lower guide plate 2, the coupling strength of a quenching heating working surface and the side surface of the tooth socket can be reduced, the problem of overheating and melting of the side surface of the tooth socket is prevented, full tooth width hardening is realized, and the bearing capacity and the quality of the gear are improved.

And a magnetizer 4 is arranged between the conductive plate 3 and the upper guide plate 1 and between the conductive plate and the lower guide plate 2 so as to enhance the magnetic field of the quenching heating working surface and improve the heating efficiency. Preferably, the conductive plate 3, the upper guide plate 1 and the lower guide plate 2 are made of red copper, and the magnetizer 4 is a silicon steel sheet. And one ends of the upper guide plate 1 and the lower guide plate 2, which are far away from the conductive plate 3, are fixedly connected with a quenching transformer, and the quenching transformer is connected with a power supply through a cable. Preferably, the power supply is an intermediate frequency power supply.

The protection cooler 5 is located outside the heating inductor, specifically, the protection cooler 5 is symmetrically arranged outside the heating inductor, that is, the protection cooler 5 is provided with 2. Protection cooler 5 and first coolant liquid pipe 7 intercommunication, protection cooler 5 is equipped with the first face of spraying 9 relative with the tooth's socket lateral surface, the first jet orifice 11 of equipartition on the first face of spraying 9. Preferably, the diameter of the first injection hole 11 is 0.5-0.8mm, and the center distance between adjacent first injection holes 11 is 1.0-1.2 mm. The first spraying surface 9 is an inclined plane, and the first spraying surface 9 is parallel to the outer side surface of the tooth socket. That is, the first spraying surfaces 9 of the 2 protective coolers 5 are symmetrical about the heating inductor.

The quenching cooler 6 is positioned below the heating inductor, and the quenching cooler 6 is communicated with a second cooling liquid pipe 8. Meanwhile, the quenching cooler 6 is provided with a second spraying surface 12, and second spraying holes 13 are uniformly distributed on the second spraying surface 12. Preferably, the diameter of the second injection hole 13 is 0.5-0.8mm, and the center distance between adjacent second injection holes 13 is 1.0-1.2 mm.

During the use, the clearance at current conducting plate 3 and the tooth root is 1-2mm, the clearance of current conducting plate 3 and tooth root fillet department is 1-1.5mm, the clearance of current conducting plate 3 and gear reference circle department is 1-2mm, the clearance of current conducting plate 3 and tooth top is 5-6mm, utilizes the heating inductor to make the tooth's socket reach the temperature of required quenching, then, adopts protection cooler 5 to carry out the heat transfer cooling to the tooth's socket lateral surface, and simultaneously, adopts quenching cooler 6 to carry out the heat transfer cooling to tooth's socket, tooth root and tooth's socket lateral surface, is showing the cooling rate who improves tooth root and tooth's socket side, can solve the inhomogeneous problem of quenching layer cooling effectively.

The present invention has been described in detail, and it should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Claims

1. The utility model provides a quenching inductor suitable for tooth's socket, its characterized in that, includes heating inductor, protection cooler and quenching cooler, the heating inductor includes upper guide plate, lower guide plate and connects the current conducting plate of upper guide plate tip and lower guide plate tip, the shape of current conducting plate matches with the shape of tooth's socket, and the current conducting plate is equipped with the arc of symmetry with upper guide plate, lower guide plate junction and caves in, the protection cooler is located the outside of heating inductor for spray the coolant liquid to the tooth's socket lateral surface, the quenching cooler is located the below of heating inductor, is used for spraying the coolant liquid to tooth's socket, tooth root and tooth's socket lateral surface.

2. The quenching inductor for tooth slot as claimed in claim 1, wherein a magnetic conductor is disposed between the conductive plate and the upper and lower guide plates.

3. The quenching inductor suitable for tooth slots as claimed in claim 2, wherein the magnetizer is silicon steel sheet.

4. The quenching inductor for tooth slot as claimed in claim 1, wherein the conductive plate, the upper guide plate and the lower guide plate are made of red copper.

5. The quenching inductor for tooth slot as claimed in claim 1, wherein the protection cooler is symmetrically disposed outside the heating inductor.

6. The quenching inductor applicable to the tooth socket as claimed in claim 5, wherein the protection cooler is provided with a first spraying surface opposite to the outer side surface of the tooth socket, and first spraying holes are uniformly distributed on the first spraying surface.

7. The quench inductor for tooth slots of claim 6 wherein the first spray surface is beveled and is parallel to the outer side of the tooth slot.

8. The quenching inductor applicable to tooth slots as claimed in any one of claims 1 to 7, wherein the quenching cooler is provided with a second spraying surface, and second spraying holes are uniformly distributed on the second spraying surface.