Gear box and shaft body structure thereof

A technology for gear boxes and shafts, which is applied to belts/chains/gears, shafts, shafts, and bearings, etc., can solve the problems of high machining accuracy and high cost of shafts, and achieves wide application range, convenient processing, and reduced Effect of backlash and backlash difference

Pending Publication Date: 2017-09-08
SHENZHEN ZHAOWEI MACHINERY&ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a gear box and its shaft structure, which aims to solve the problems of high machining accuracy and high cost of the shaft body in the gear box in the prior art

Method used

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  • Gear box and shaft body structure thereof
  • Gear box and shaft body structure thereof
  • Gear box and shaft body structure thereof

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0028] It should also be noted that the orientation terms such as left, right, up, and down in this embodiment are only relative concepts or refer to the normal use state of the product, and should not be regarded as limiti...

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Abstract

The invention relates to the technical field of gear boxes and provides a gear box and a shaft body structure thereof. The shaft body structure comprises a shaft body. The shaft body is divided by a step face to form a first shaft part and a second shaft part. The first shaft part is sleeved with a plastic sleeve. The plastic sleeve is in interference fit with the first shaft part. In the shaft body structure, the shaft body is sleeved with the plastic sleeve, when the shaft body is mounted, the plastic sleeve generates certain elastic deformation and holding force, thus the shaft body structure, the plastic sleeve and a gear are connected to be a whole, shaft-hole interference fit is achieved by utilizing the elasticity of a plastic material, under the situation that machining precision and machining cost are not improved, the transmission clearance and the return stroke difference of a shaft are reduced, and the transmission precision of the gear box is improved with the low cost. In addition, the shaft body structure is simple, convenient to machine and wide in application range.

Description

technical field [0001] The present invention relates to the technical field of gear boxes, and more specifically relates to a gear box and its shaft structure. Background technique [0002] The shaft is one of the most important parts in the gearbox, and the gearbox generally includes shaft parts such as input shaft, output shaft and gear shaft. Typically, the gearbox shaft and bore are fitted with a transition fit. Due to machining errors, the size of the shaft and the hole cannot be completely consistent. For the convenience of installation, there is a small gap between the shaft and the hole. This small gap leads to a certain return difference in the transmission process of the gearbox. For micro-gearboxes with high precision requirements, in order to improve the transmission accuracy of the gearbox and reduce the return difference, the shaft needs to be installed in the shaft hole or bearing through a small interference fit. When both the shaft and the hole are made of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C3/02F16H57/022
CPCF16H57/0018F16H57/022
Inventor 李平徐尚祥朱林
Owner SHENZHEN ZHAOWEI MACHINERY&ELECTRONICS CO LTD
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