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Device for nitriding crank shaft and inside furnace

A technology of internal device and nitriding furnace, which is applied in the field of mechanical engineering material processing equipment, can solve the problems of out-of-tolerance jumping deformation, etc., and achieve the effects of preventing nitriding deformation, weakening uneven distribution of internal stress, and preventing movement and tilting

Active Publication Date: 2014-04-02
GUANGXI YUCHAI MASCH CO LTD
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  • Description
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Problems solved by technology

[0003] In order to solve the current problem of out-of-tolerance run-out deformation due to improper furnace loading during nitriding of large crankshafts, the present invention provides a furnace device that can prevent large crankshafts from bending and deformation during nitriding of large crankshafts. It is easy to bend and deform, and it makes the process of crankshaft loading and nitriding easier, safer and more reliable.

Method used

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  • Device for nitriding crank shaft and inside furnace
  • Device for nitriding crank shaft and inside furnace
  • Device for nitriding crank shaft and inside furnace

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Embodiment Construction

[0018] In order to further illustrate the structure and function of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments, but it should be understood that the protection scope of the present invention is not limited by specific embodiments.

[0019] figure 1 , figure 2 It is respectively the front view and the top view when the crankshaft 7 is installed on the furnace device of the present invention. As shown in the figure, the furnace device of the present invention includes three support columns 2, a hanging plate 3, a hanging device and Bottom device 8, screw holes are all provided on the end faces of crankshaft 7 two ends, the upper hanging device is connected with the screw holes of crankshaft 7 ends and crankshaft 7 is hung on the hanging plate 3, and bottom top device 8 is connected with the other end of crankshaft 7. The screw holes cooperate and tighten the crankshaft 7...

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Abstract

The invention discloses a device for nitriding a crank shaft and inside a furnace. The device is arranged on a chassis of a nitriding furnace and comprises a support frame, an upper suspending device and a lower supporting device, wherein the support frame is arranged on the chassis, the upper suspending device is used for connecting the crank shaft and suspending the crank shaft on a rod-shaped structure of the support frame, the lower supporting device is a seat-shaped device which supports the lower side of the crank shaft and is adjustable in height, and the lower supporting device is arranged on the chassis of the nitriding furnace and corresponds to the upper suspending device one by one. The device inside the furnace can not only solve the problem of easy bending deformation of a large-size crank shaft during nitridation, but also enable the charging and nitriding operation process of the crank shaft to be simpler, more convenient, safer and more reliable.

Description

technical field [0001] The invention relates to the technical field of mechanical engineering material processing equipment, and more specifically relates to a furnace device for crankshaft nitriding. Background technique [0002] In order to improve the crankshaft surface hardness, yield strength, wear resistance and corrosion resistance, the crankshaft must be nitrided. When performing surface nitriding treatment on a large crankshaft, the usual furnace loading method is to hang the furnace cover or directly stack it on the cathode chassis. However, due to the large self-weight of the large crankshaft, this furnace loading method will cause The bending deformation caused by uneven force is mainly caused by the self-weight of the crankshaft. For example, if a crankshaft with a length of 2 and a half meters is directly stacked on the cathode chassis of the ion nitriding furnace for nitriding, it will produce a bending deformation of more than 0.6mm. As a result, each main j...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C8/26
Inventor 于笋李勇强
Owner GUANGXI YUCHAI MASCH CO LTD
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