Assembly-type idle gear component

An idler gear and assembled technology, which is applied in the field of assembled idler gear components, can solve the problems that the joint area cannot be made too large, the heating temperature is limited, etc.

Pending Publication Date: 2020-08-11
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the assembly process of the shrink-fit structure in the prior art is simple, due to the limitation of structure and size, the joint area of ​​the inner hole surface of the matching part and the mating section of the shaft surface cannot be made very large. In addition, it is affected by materials and heat treatment, and Ensure that the parts have sufficient hardness, and the heating temperature during the heat sleeve will be limited to a certain extent

Method used

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  • Assembly-type idle gear component
  • Assembly-type idle gear component
  • Assembly-type idle gear component

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Embodiment Construction

[0037] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in detail, but it should be understood that protection scope of the present invention is not limited by specific embodiment.

[0038] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0039] Such as Figure 1 to Figure 5 As shown, an assembled idler gear assembly according to a preferred embodiment of the present invention mainly includes a bull gear 1, a spring expansion pin 2, a pinion 3, a bushing 4, and a screw 5 (hexagon socket head cap screw 5M8X25, selected in this embodiment , but the present invention is not limited thereto) and other parts are combined.

[0040] Such as Figure 6 to Figure 9 As shown, in some embo...

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PUM

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Abstract

The invention discloses an assembly-type idle gear component, comprising a large gear, a small gear and spring expansion pins. The large gear comprises a plurality of inner flanges protruding from a gear ring of the large gear to the center direction of the large gear, screw holes formed in all the inner flanges, and a first positioning pin hole formed in one end of one of the screw holes; a smallgear ring is arranged at one end of the small gear, and the small gear comprises a plurality of outer flanges protruding outwards along the other end of the small gear, step through holes formed in all the outer flanges, and a second positioning pin hole formed in one end of one of the step through holes; and the spring expansion pins are arranged in the first positioning pin hole and the secondpositioning pin hole, wherein the multiple inner flanges and the multiple screw holes are matched with the multiple outer flanges and the multiple step through holes in position and number, and screwsare adopted to mount and arrange the large gear between the small gear ring and the multiple outer flanges through the step through holes and the screw holes. The assembly-type idle gear component iseasy to assemble, convenient to maintain and capable of avoiding the failure problem of a heating jacket assembly mode.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to an assembled idler gear assembly of a diesel engine. Background technique [0002] At present, the idle gear assembly of a diesel engine (the large and small gears are assembled together after separate processing), and the assembly of the large and small gears generally adopts interference fit (shrink fitting process) to transmit torque. Although the assembly process of the shrink-fit structure in the prior art is simple, due to the limitation of structure and size, the joint area of ​​the inner hole surface of the matching part and the mating section of the shaft surface cannot be made very large. In addition, it is affected by materials and heat treatment, and Ensure that the parts have sufficient hardness, and the heating temperature during the heat sleeve will be limited to a certain extent. In addition, fluctuations in the roughness of the inner hole surface of the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/17F16H55/12
CPCF16H55/12F16H55/17
Inventor 梁振杰
Owner GUANGXI YUCHAI MASCH CO LTD
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