Gear shaft back-up bearing cover rotary alignment structure and alignment method

A technology for supporting bearings and gear shafts, used in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of loss of versatility and interchangeability of parts, complex processing, etc., to ensure universality and interchangeability, simplifying Processing technology, the effect of good operation

Active Publication Date: 2018-02-02
CHINA NORTH ENGINE INST TIANJIN
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But at the same time, the problem is that the processing is compli

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  • Gear shaft back-up bearing cover rotary alignment structure and alignment method

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[0021] It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be und...

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Abstract

The invention provides a gear shaft back-up bearing cover rotary alignment structure and an alignment method. The alignment structure is characterized in that a bush I and a bush II are pressed into bottom holes of a gear case and a bearing cover in an interference manner, shafts at the two ends of a gear are installed in inner holes of the bush I and the bush II, a spline housing matched with thegear is arranged in the gear, and the other end of the spline housing is matched with a cam shaft; and the bearing cover is assembled to a gear case cover, and the gear case cover is assembled on thegear case. By means of the structure and the method, the structure design of concentricity of the rotating inner holes of the two bushes is guaranteed through assembling; the machining process is greatly simplified, and the part universality and interchangeability are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of transmission shaft system structures, and in particular relates to a gear shaft supporting bearing cover rotation alignment structure. Background technique [0002] Compared with the rolling bearing structure, the sliding bearing structure used for the rotation support of the gear shaft runs more smoothly and has a smaller structure space. However, to keep a pair of sliding bearings running well, it is necessary to ensure sufficient coaxiality accuracy requirements. The previous design technology was to ensure the coaxiality of the sliding bearing pair. Generally, the machining allowance is left for the inner holes of the sliding bearings installed on the gearbox and the bearing cover respectively. After the bearing cover is installed on the gear box and fixed, the combined processing method of through-boring the inner holes of the two sliding bearings is finally adopted. Achieve high coaxiality of the ...

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Application Information

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IPC IPC(8): B23P19/00B23P19/10
CPCB23P19/00B23P19/10
Inventor 朱美琳许永泽高丽英刘利军彭海雄
Owner CHINA NORTH ENGINE INST TIANJIN
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