CN207210480U

CN207210480U - It is a kind of to be used for large modulus and the layer-stepping induction coil of big tooth thickness gear sensing heating

Info

Publication number: CN207210480U
Application number: CN201720831306.0U
Authority: CN
Inventors: 刘丰; 殷健
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2017-07-11
Filing date: 2017-07-11
Publication date: 2018-04-10
Anticipated expiration: 2027-07-11

Abstract

The utility model discloses a kind of for large modulus and the layer-stepping induction coil of big tooth thickness gear sensing heating, the device mainly includes loop A, coil B, coil C, positive electrode plate, negative electrode plate, asbestos layer A, asbestos layer B, after positive electrode plate and negative electrode plate are respectively turned on power supply, loop A, coil B, coil C carries out sensing heating simultaneously to gear, pass through asbestos layer A and asbestos layer B insulating effect, sensing heating is carried out to gear, utilize the mode of heating of three profiling coil layer-steppings, active coil is efficiently reduced in large modulus, heating blind area on big tooth thickness gear, reduce the temperature difference of gear profile, the uniformly micro-structure distribution of gear, improve gear inherent quality；Utilize asbestos layer, it is therefore prevented that adjacent two coil is mutually conductive, while reduces the influence that adjacent two coil mutually radiates, and extends coil service life, improves the utilization rate of coil；This apparatus structure is simple, easy to operate, suitable to promote.

Description

It is a kind of to be used for large modulus and the layer-stepping induction coil of big tooth thickness gear sensing heating

Technical field

Gear sensing heating field is the utility model is related to, it is particularly a kind of to add for large modulus and the sensing of big tooth thickness gear The layer-stepping induction coil of heat.

Background technology

Large modulus, big tooth thickness gear are the core components of high-power heavy type plant equipment, extensively as engineering machinery important Parts General applies in key areas such as national defence, water conservancy, chemical industry, if its performance can not meet actual use demand, gently then influences work Journey task smoothly completes, heavy then jeopardize personal safety and be likely to cause major accident, therefore large modulus, big tooth thickness gear Quality has to strictly control, and gear subjects huge alternate stress, contact stress and strong impulsive force in passing power And frictional force, therefore very high requirement is proposed to the technology of preparing of gear.During large modulus, big transverse tooth thickness gear heat treatment, Control for large modulus, big transverse tooth thickness gear profile temperature is particularly important, and temperature influences the micro-structure distribution of gear, quench-hardened case point Cloth drastically influence the quality of gear again, if large modulus, big transverse tooth thickness gear profile temperature distributing disproportionation are even, tooth top, tooth occurs Soft or hard problem of root, then will have a strong impact on the inherent quality of gear, to being served in the powerful heavy machine in deep-sea or land Tool equipment, if gear has mass defect, consequence is hardly imaginable.

The content of the invention

For problem above, the utility model design is a kind of for large modulus and the layer-stepping of big tooth thickness gear sensing heating Induction coil, using the mode of heating of three profiling coil layer-steppings, active coil is efficiently reduced in large modulus, big transverse tooth thickness Heating blind area on gear, reduce the temperature difference of gear profile, uniform gear micro-structure distribution, improve gear inherent quality.

The utility model mainly includes loop A, coil B, coil C, positive electrode plate, negative electrode plate, asbestos layer A, asbestos layer B, loop A are connected by asbestos layer B with coil B, and coil B is connected by asbestos layer A with coil C, loop A, asbestos layer B, coil B, asbestos layer A and coil C is evenly distributed on the outside of gear profile, and loop A, coil B, coil C openings are respectively mounted positive electrode After plate and negative electrode plate, positive electrode plate and negative electrode plate are respectively turned on power supply, loop A, coil B, coil C are carried out simultaneously to gear Sensing heating, pass through asbestos layer A and asbestos layer B insulating effect, the mode of heating of layer-stepping, to large modulus, big tooth thickness gear Sensing heating is carried out, because loop A, coil B, coil C are respectively with positive electrode plate and negative electrode plate junction, gear be present and do not add Heat arrives subregion, here by the effect of heat transfer, the temperature of gear through-thickness is reached unanimity, so as to reach gear The requirement of uniform hardening layer temperature during heat treatment.

The utility model device includes following technical scheme：As shown in Fig. 2 angle is β between loop A and coil B, coil Angle is γ between B and coil C, and angle is α between coil C and loop A, due to loop A, coil B, coil C respectively with positive electricity Pole plate and negative electrode plate junction, large modulus be present, the subregion that big tooth thickness gear is not heated to, divide three rational angles Spend to preferably utilize conduction of heat to reduce heating blind area of the active coil on large modulus, big tooth thickness gear (in such as Fig. 3 Region shown in M), reduce the temperature difference of gear profile, uniform gear micro-structure distribution, improve gear inherent quality；Loop A and coil The effect of the asbestos layer A between asbestos layer B and coil B and coil C between B is played absolutely to prevent that adjacent two coil is conductive Edge acts on, and also to prevent the influence that adjacent two coil mutually radiates.

The advantages of the utility model comes than existing device band and good effect：

1st, using the mode of heating of three profiling coil layer-steppings, active coil is efficiently reduced in large modulus, canine tooth Heating blind area on thick gear, reduces the temperature difference of gear profile, uniform gear micro-structure distribution, improves in gear in matter Amount.

2nd, asbestos layer is utilized, it is therefore prevented that adjacent two coil is mutually conductive, while reduces the shadow that adjacent two coil mutually radiates Ring, extend coil service life, improve the utilization rate of coil.

3rd, the apparatus structure is simple, easily operated, cost is low.

Brief description of the drawings

The utility model device is further illustrated below in conjunction with the accompanying drawings.

Fig. 1 is the working view of one preferred embodiment of this utility unit；

Fig. 2 is the top view of one preferred embodiment of this utility unit；

Fig. 3 is the partial view of one preferred embodiment of this utility unit；

Fig. 4 is the partial view of one preferred embodiment of this utility unit.

1, loop A in figure；2nd, coil B；3rd, coil C；4th, positive electrode plate；5th, negative electrode plate；6th, asbestos layer A；7th, asbestos layer B；8th, gear.

Embodiment

In Figs. 1-4, loop A (1) is connected by asbestos layer B (7) with coil B (2), and coil B (2) passes through asbestos layer A (6) it is connected with coil C (3), loop A (1), asbestos layer B (7), coil B (2), asbestos layer A (6) and coil C (3) are uniformly distributed On the outside of gear (8) profile, loop A (1), coil B (2), coil C (3) opening are respectively mounted positive electrode plate (4) and negative electrode plate (5)。

In Fig. 1-Fig. 4 implementations, after positive electrode plate (4) and negative electrode plate (5) are respectively turned on power supply, loop A (1), coil B (2), coil C (3) to gear (8) while carries out sensing heating, by asbestos layer A (6) and asbestos layer B (7) insulating effect, divides The mode of heating of laminar, sensing heating, loop A (1), coil B (2), coil C (3) are carried out to large modulus, big tooth thickness gear (8) Connect (5) with positive electrode plate (4) and negative electrode plate respectively and meet place, gear (8) be present and be not heated to subregion, passed here by heat The effect led, the temperature of gear (8) through-thickness is reached unanimity, so as to reach uniform hardening layer when gear (8) is heat-treated The requirement of temperature.

Claims

1. a kind of layer-stepping induction coil for large modulus and big tooth thickness gear sensing heating, mainly including loop A, coil B, Coil C, positive electrode plate, negative electrode plate, asbestos layer A, asbestos layer B, it is characterised in that：The loop A by the asbestos layer B with The coil B connections, the coil B are connected by the asbestos layer A with the coil C, the loop A, the asbestos layer B, The coil B, the asbestos layer A and the coil C are evenly distributed on the outside of the gear profile, the loop A, the line Circle B, the coil C openings are respectively mounted the positive electrode plate and the negative electrode plate.

2. a kind of layer-stepping induction coil for large modulus and big tooth thickness gear sensing heating according to claim 1, It is characterized in that：The positive electrode plate and the negative electrode plate pass through welding and the loop A, the coil B, the coil respectively C connections.

3. a kind of layer-stepping induction coil for large modulus and big tooth thickness gear sensing heating according to claim 1, It is characterized in that：The positive electrode plate connects energization with the negative electrode plate by external power supply.