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Disassembly protection device and coupling for taper excessive fit parts

A protection device, a technology of overfitting, applied in the direction of coupling, elastic coupling, mechanical equipment, etc., can solve the problems of small shaft internal thread damage, screw breakage, coupling falling off, etc., and achieve the effect of preventing impact

Active Publication Date: 2018-09-25
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is how to solve the problem that the coupling is disassembled and falls off instantly and impacts along the axial direction, which easily causes damage to the internal thread of the small shaft and the breakage of the guide screw

Method used

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  • Disassembly protection device and coupling for taper excessive fit parts
  • Disassembly protection device and coupling for taper excessive fit parts

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Embodiment Construction

[0019] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific orientation, and therefore sh...

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Abstract

The invention discloses a taper interference fit part dismounting protection device which comprises an outer cylinder, a first inner cylinder and a second inner cylinder, wherein the first inner cylinder is arranged in the outer cylinder; one end of the second inner cylinder extends into the outer cylinder and is matched and connected with the first inner cylinder; a first flange matched with the inner circumference of the outer cylinder is arranged on the outer circumference of the first inner cylinder; a second flange matched with the inner circumference of the outer cylinder is arranged on the outer circumference of the second inner cylinder; a spring is arranged between the first and second inner cylinders in a sleeving manner; one end of the spring is propped against one side of the first flange; and the other end of the spring is propped against one side of the second flange. The invention further discloses a taper interference fit coupling. By adoption of the taper interference fit part dismounting protection device provided by the invention, the problem that the coupling instantly falls off and impacts along the axial direction when being dismounted, which is easy to cause small shaft internal threaded hole damage and guide lead screw breakage, can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of rail vehicle bogie couplings, in particular to a disassembly protection device for taper interference fit parts and a coupling. Background technique [0002] As the output of newly built EMUs continues to increase, the use of taper overfit couplings is also gradually increasing. This type of coupling disassembly is required during both new builds and overhauls. The disassembly is very frequent, which is likely to cause damage to the inner threaded hole of the small shaft of the bogie motor and the small shaft of the gearbox, and the breakage of the guide screw, which will increase the cost of repairing, scrapping, and tooling scrapping of the company's small shaft. [0003] The inner hole of the coupling and the journal of the small shaft are a 1:50 taper fit, the press-in stroke is 12mm, and there is a clearance of 15-25mm when withdrawing to ensure that the coupling is fully separated from the journal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D3/56
CPCF16D3/56
Inventor 邱艳春郭锐田鹏肖雪峰代卧龙管明苏浩
Owner CRRC QINGDAO SIFANG CO LTD
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