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Steel rail quenching electric induction heating coil follow-up apparatus

A technology of induction heating coil and follower device, which is used in rails, heat treatment furnaces, rail maintenance, etc., can solve the problems of inability to guarantee the constant distance between the heating coil and the rail, increased friction, and inflexible lifting and lowering. Flexible and reliable lifting, reduce downtime, and reduce the effect of heat radiation

Inactive Publication Date: 2013-04-17
中国铁路呼和浩特局集团有限公司焊轨段
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems that this device exists are: 1, because people operate by observing, can't guarantee that the distance of heating coil and steel rail is constant all the time
2. In addition, the two front and rear rails are connected by rail clips. When the joints are heated by electric induction, the joints must be upturned. In order to avoid damaging the coils, the coils have to be raised. The increase in the distance causes the temperature of the rail joint section to be biased. Low, can not reach the required tissue transformation temperature
3. Due to the high temperature and dust environment, after a period of use, the guide post and guide sleeve will be deformed, resulting in increased friction and inflexible lifting

Method used

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  • Steel rail quenching electric induction heating coil follow-up apparatus
  • Steel rail quenching electric induction heating coil follow-up apparatus
  • Steel rail quenching electric induction heating coil follow-up apparatus

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specific Embodiment approach

[0016] Specific implementation methods: such as figure 1 , figure 2 As shown, a rail quenching electric induction heating coil servo device includes a bed body 1, a counterweight support device 2, a guide rail 3, a linear bearing seat 4, a rolling linear bearing 5, a guide post 6, a rotating shaft seat 7, and a rotating shaft 8 , lifting connecting plate 9, oil cylinder 10, transformer 11, electric induction heating coil 12, tread wheel bearing seat 13 and tread wheel 14, wherein, the bed surface 15 side of bed body 1 is provided with counterweight supporting device 2, on the bed There are also at least four guide rails 3 on the surface 15, wherein at least two guide rails 3 are respectively placed on both sides of the symmetrical midline of the cross section of the heated steel rail 16, and the linear bearing housing 4 is placed on the four guide rails 3, and along the four guide rails 3 moves up and down, the linear bearing seat 4 is a hollow structure, such as Figure 5 ...

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Abstract

The invention discloses a steel rail quenching electric induction heating coil follow-up apparatus. The apparatus comprises a bed body, a counterpoise supporting apparatus, a guide rail, a linear bearing pedestal, rolling linear bearings, guide pillars, rotating shaft seats, rotating shafts, an elevating connecting plate, a rotating wheel, an oil cylinder, transformers, an electric induction heating coil, a pedal wheel bearing pedestal, a pedal wheel, and the like. The apparatus can be elevated with the elevating of the steel rail, and the rotation and elevation are flexible and reliable. With the steel rail quenching electric induction heating coil follow-up apparatus, heat radiations of the heated steel rail towards the guiding mechanisms are reduced; and a defect, that failure is likely to occur when the transformers are under high temperature heating, is avoided. The whole apparatus is reasonably designed, and is durable. With the apparatus, machine shut-off time due to maintenance is reduced, and yield of quenching steel rail is improved.

Description

Technical field: [0001] The present invention relates to a rail quenching electric induction heating coil servo device, especially relates to the surface quenching production process of the rail head, relying on the self-adaptive function of the equipment to ensure the contact between the top of the heated rail running along the roller line and the electric coil. An electric induction heating coil follower with a constant distance from the induction heating coil. Background technique: [0002] The surface quenching of the rail head requires that the heating temperature of the rail should be within the specified tissue transformation temperature range, so as to ensure that the hardness of the rail after cooling reaches the technical standard. The process requires that the distance between the electric induction heating coil and the top of the rail is always kept constant. However, due to the surface quenching process of the rail head, the heated rail is at the position of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/04C21D1/10E01B31/18
CPCY02P10/253Y02P10/25
Inventor 蔡庄厚郭俊文李敬刚王玉辉洪海峰刘伟郭晋龙贺娜闫存祯
Owner 中国铁路呼和浩特局集团有限公司焊轨段
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