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Chain sprocket wheel with variable pitch

A chain sprocket and pitch technology, applied in the direction of belt/chain/gear, transmission chain, portable lifting device, etc., to achieve the effect of compact structure, large carrying capacity and reasonable design

Inactive Publication Date: 2011-06-08
闵德仁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is impossible for a standard chain sprocket mechanism to meet these requirements

Method used

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  • Chain sprocket wheel with variable pitch
  • Chain sprocket wheel with variable pitch
  • Chain sprocket wheel with variable pitch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0025] combine figure 1 , the composition of the unequal pitch chain sprocket includes the sprocket and the chain meshing with the sprocket; while combining figure 2 and image 3 , the chain is composed of the inner chain plate 1, the outer chain plate 3 and the pin shaft 2, the inner chain plate and the outer chain plate are connected by the pin shaft to form a chain, the adjacent two pitches are not equal, the long pitch t is greater than the short joint from t 1 ; The tooth profile curve of the sprocket tooth profile is composed of the connection of the root arc ab and the addendum arc bc, and the two tooth profiles are connected by a straight line aa and the tooth root arc. During design, the following requirements should be met between these parts:

[0026] 1. The end of the inner chain plate of the chain is a circular arc, and its radius r is the same ...

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PUM

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Abstract

The invention provides an unequal-pitch chain sprocket which comprises a sprocket and a chain which is meshed with the sprocket; the chain consists of an inner chain plate, an outer chain plate and a pin; the inner chain plate and the outer chain plate are connected by the pin to form the chain; the two neighboring pitches are unequal; the tooth profile curve of the sprocket tooth profile is composed of a dedendum circular arc and an addendum circular arc by connection; two tooth profiles are connected with the dedendum circular arc by a straight line. The chain sprocket has non-standard structure and belongs to the unequal-pitch chain sprocket. The chain sprocket has the advantages of simple structure, large carrying capacity, good firmness and durability and low cost, etc., can lead theequipment structure to be compact, and is particularly fit for the cold-drawing equipment of non-ferrous metal sections.

Description

(1) Technical field [0001] The invention relates to a transmission mechanism, in particular to a chain sprocket transmission mechanism. (2) Background technology [0002] Chain drive is a common mechanical transmission mechanism. In the transmission chain, the sleeve roller chain is the most widely used, and the geometry of the sprocket tooth shape has national standards. However, in some special occasions, such as cold-drawing equipment for non-ferrous metal profiles, it is necessary to use the inner wide space of the outer chain plate of the chain as the insertion position of the sprocket teeth, and at the same time connect with the hook on the traction device of the cold-drawing machine for profile drawing . At the same time, the chain sprocket transmission mechanism is required to have a compact structure and a large carrying capacity. It is impossible for a standard chain sprocket mechanism to meet these requirements. (3) Contents of the invention [0003] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H7/06F16H55/30F16G13/06
Inventor 闵德仁
Owner 闵德仁