CN202322908U

CN202322908U - Induction hardening device for automobile steering knuckle bracket

Info

Publication number: CN202322908U
Application number: CN2011204350449U
Authority: CN
Inventors: 许建芳
Original assignee: SHANGHAI UNIVERSITY HEAT-TREATMENT Co Ltd
Current assignee: SHANGHAI UNIVERSITY HEAT-TREATMENT Co Ltd
Priority date: 2011-11-04
Filing date: 2011-11-04
Publication date: 2012-07-11
Anticipated expiration: 2021-11-04

Abstract

The utility model provides an induction hardening device for an automobile steering knuckle bracket. The induction hardening device comprises a connecting plate arranged on a machine and connected to a heating power supply, and a heating inductor connected to the heating power supply through the connecting plate; the heating inductor is arranged on the outer side of a to-be-quenched part of an automobile steering knuckle bracket part from one side; and a predetermined angle is formed between conducting wires on the lower end surface of the heating inductor and the adjacent surface of the automobile steering knuckle bracket part, and then the clearance between the conducting wires in local area of the lower end surface of the heating inductor and the automobile steering knuckle bracket part is enlarged, so that the quenching temperature of the lower end surface is reduced effectively, and the steering knuckle bracket part is effectively prevented from cracking during induction hardening.

Description

A kind of spindle support induction hardening equipment

Technical field

The utility model relates to metal works quenching processing unit (plant), particularly relates to a kind of spindle support induction hardening equipment.

Background technology

Under the situation of present automotive industry high speed development; Each big automobile vendor is in the scale of pursuit; All pay attention to the lifting of core competitiveness more; Strengthen the scale of independent brand and localization research and development automobile, adopt homemade component import substitution parts to make and process this, the competitive power that strengthens manufacturer is all had very significance with improving the national industry state of the art and obtaining employment with the reduction car load.

Steering knuckle is one of major part on the steering axle of automobile, is automobile important safety component, and global industry personage extremely payes attention to its security feature.Steering knuckle can make vehicle steadily go and the sensitive travel direction of transmitting, and the function of steering knuckle is to bear automobile load, and supporting also drives wheel and rotates and make motor turning around stub.Under motoring condition, it is bearing changeable shock load, therefore, requires it to have very high intensity.The induction quenching intensified process of bar portion can improve the fatigue lifetime of steering knuckle, and the design of inductor block and manufacturing are the keys that improves the induction quenching quality.

Fig. 1 shows that heritage answers quenching apparatus 1 quenching application structure synoptic diagram.Traditional heating means can not get the hardening region of profiling after spindle trestle component 2 quenches; Especially fillet place case depth does not reach requirement; And cause part 2 to ftracture easily; Can not satisfy the design performance requirement of part 2, its reason mainly is: the induction quenching device 1 of knuckle support part 2 generally is a half-turn formula profiling inductor block, reaches the purpose of part 2 bar portions and fillet heating through two axial leads and all guiding line.Because the existence of inductive current magnetic field jump phenomena, the case depth in round-corner transition district is the most rambunctious, and as guaranteeing the lower plane case depth, then the case depth at fillet place can be shallow excessively, do not reach the case depth requirement; As guarantee the case depth at fillet place, even part 2 fillet places obtain the hardening region of profiling, then the lower plane case depth can be dark excessively, causes part 2 heating inhomogeneous; And because the fringing effect of induction heating is strong, part 2 is concentrated at the inductive current of induction quenching device 1 lower surface; Make the zone of heating at this place darker, its top layer has formed the martensite thin layer very soon when quench cooled afterwards, and in the cooling subsequently; The austenite of coating interior constantly changes martensite into, and specific volume increases, outwards extruding; Initial martensite thin layer is squeezed, and forms the tensile stress effect, and then produced crackle.

Therefore, how finding a kind of quenching device of improved spindle part, to overcome above-mentioned technological deficiency, is the technical problem that needs to be resolved hurrily at present.

The utility model content

The shortcoming of prior art in view of the above, the purpose of the utility model is to provide a kind of spindle support induction hardening equipment, is used for solving crackle appears in prior art spindle part in quenching process problem.

For realizing above-mentioned purpose and other relevant purposes, the utility model provides a kind of spindle support induction hardening equipment, and comprise at least: web plate is connected in heating power supply; Heating inductor; Be connected in said heating power supply through said web plate; Said heating inductor waits to quench the position outside from what a side was arranged at the spindle trestle component, and the lower surface lead of said heating inductor becomes predetermined angle with contiguous spindle rack surface.

A kind of spindle support induction hardening equipment that the utility model provided, preferably, said heating inductor is a half-turn formula profiling inductor block.Said predetermined angle is 20 degree angles.Said heating inductor also comprises magnetizer.Said heating inductor is fixedly connected with said web plate.Said fixed connection mode is the screw lock mode.Said web plate comprises connecting joint, and said connecting joint is electrically connected with said heating power supply.

Therefore; The utility model is through suitably strengthening the gap between heating inductor lower surface regional area lead and the spindle trestle component; Be about to be 20 ° of angles between lower surface lead and piece surface, effectively reduce the quenching temperature at place, lower surface, make part behind heating quenching, obtain the hardening characteristics curve of profiling; Surplus temperature when quenching has simultaneously also played the self-tempering effect, finally reaches the problem that cracks when preventing knuckle support part induction quenching.

Description of drawings

Fig. 1 is shown as heritage and answers quenching apparatus application state structural representation.

Fig. 2 is shown as the spindle support induction hardening equipment structural representation of the utility model.

The element numbers explanation

1 heritage is answered quenching apparatus

2 spindle trestle components

3 heating inductors

31 leads

32 magnetizers

4 boards

5 web plates

The α angle

Embodiment

Below through the embodiment of specific specific examples explanation the utility model, those skilled in the art can be understood other advantages and the effect of the utility model easily by the content that this specification sheets disclosed.The utility model can also be implemented or use through other different embodiment, and each item details in this specification sheets also can be carried out various modifications or change based on different viewpoints and application under the spirit that does not deviate from the utility model.

See also Fig. 3.Need to prove; The diagram that is provided in the present embodiment is only explained the basic conception of the utility model in a schematic way; Satisfy only show in graphic with the utility model in relevant assembly but not component count, shape and plotted when implementing according to reality; Kenel, quantity and the ratio of each assembly can be a kind of random change during its actual enforcement, and its assembly layout kenel also maybe be more complicated.

As shown in Figure 3, the utility model provides a kind of spindle support induction hardening equipment, comprises web plate 5 and heating inductor 3.

Said web plate 4 is arranged on the said board 5, be fixedly connected said web plate 4 through lathe slide up and down drive said heating inductor 6 to or on spindle trestle component (not shown), treat that the quench section displacement is moving.

As shown in the figure, be to adopt between said heating inductor 3 and the said web plate 5 like being fixedly connected of screw lock mode, be not as limit certainly, and said in the present embodiment heating inductor 3 have heater coil for half-turn formula profiling inductor block.Said heating inductor 3 connects said heating power supply through the connecting joint on the said web plate; Said heating inductor 3 partly is located in the outside, position of quenching of waiting of said spindle trestle component 2 from a side; Can be used for position said to be quenched is heated; And, as shown in the figurely know that the lower surface lead 31 of said heating inductor 3 is with becoming predetermined angle α between contiguous spindle trestle component 26 surfaces.

Said lead 31 is with after said spindle trestle component 2 surfaces become predetermined angle α; Thereby strengthen the gap between heating inductor 3 lower surface regional area leads 31 and the spindle trestle component 2; Minimizing is to the heat effects on said part 2 surfaces; Reduced the quenching temperature at place, lower surface; The inductive current that overcomes said because part 2 lower surfaces of background technology concentrates on this place, thus this place's zone of heating is made more deeply cause each thermosphere non-uniform temperature and when quenching because of drawing high the problem that stress cracks.

In the present embodiment, after contriver's TE, confirm said predetermined angle α more excellent be 20 the degree, can reach quenching effect preferably.In order to improve quenching effect, said heating inductor also comprises magnetizer 32 in addition, and being arranged at said heating inductor 3 is all guiding lines and vertical lead of half-turn formula profiling inductor block, through the heats in the magnetizer 32 reinforcement quenching process.

In addition in quenching process, also refrigerating unit need be arranged,,,, not give unnecessary details in addition so only mention at this because of little with the technical scheme relation of the utility model like water-jet etc.

In sum; The utility model is through suitably strengthening the gap between heating inductor lower surface regional area lead and the spindle trestle component; Be about to be 20 ° of angles between lower surface lead and piece surface, effectively reduce the quenching temperature at place, lower surface, make part behind heating quenching, obtain the hardening characteristics curve of profiling; Surplus temperature when quenching has simultaneously also played the self-tempering effect, finally reaches the problem that cracks when preventing knuckle support part induction quenching.So the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.

The foregoing description is the principle and the effect thereof of illustrative the utility model only, but not is used to limit the utility model.Any be familiar with this technological personage all can be under the spirit and category of the utility model, the foregoing description is modified or is changed.Therefore, have common knowledge the knowledgeable under such as in the technical field, must contain by the claim of the utility model not breaking away from all equivalence modification or changes that spirit that the utility model discloses and technological thought are accomplished down.

Claims

1. a spindle support induction hardening equipment is characterized in that, comprises at least:

Web plate is connected in heating power supply;

Heating inductor; Be connected in said heating power supply through said web plate; Said heating inductor waits to quench the position outside from what a side was arranged at the spindle trestle component, and the lower surface lead of said heating inductor becomes predetermined angle with contiguous spindle trestle component surface.

2. spindle support induction hardening equipment according to claim 1 is characterized in that, said heating inductor is a half-turn formula profiling inductor block.

3. spindle support induction hardening equipment according to claim 1 and 2 is characterized in that, said predetermined angle is 20 degree angles.

4. spindle support induction hardening equipment according to claim 1 is characterized in that said heating inductor also comprises magnetizer.

5. spindle support induction hardening equipment according to claim 4 is characterized in that said magnetizer is arranged at said heating inductor.

6. spindle support induction hardening equipment according to claim 1 is characterized in that said heating inductor is fixedly connected with said web plate.

7. spindle support induction hardening equipment according to claim 6 is characterized in that said fixed connection mode is the screw lock mode.