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Single direction ratchet mechanism

A one-way ratchet and ratchet technology, applied in mechanical equipment, belts/chains/gears, wrench, etc., can solve problems such as ratchet mechanism not working, ratchet spring pressure resistance, tooth skipping or even tooth collapse, etc., to achieve large torque, The effect of simple mechanism and small turning angle

Inactive Publication Date: 2008-09-17
王宁生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are defects such as small pawls, thin ratchet teeth, and weak shaft pins. When a slightly large torque is used, it is easy to cause tooth jumping or even tooth collapse, and the mechanism is complicated and the strength is poor.
As for the multiple pawls, the resistance to the ratchet spring pressure is greater, and the pawls are more likely to rotate simultaneously with the ratchet stagnation belt, so that the ratchet mechanism cannot work.

Method used

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  • Single direction ratchet mechanism

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Embodiment Construction

[0009] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0010] As shown in Figure 1 and Figure 2, on a plane with equal thickness, there is a through hole with double centers A, B and radius R, r, and the extension line connecting the centers A and B intersects on the wall of the through hole near the handle end r If it is set as middle, one to twenty internal teeth 3 are arranged on the hole wall radially, left and right, and there is a ratchet 5 with a ring of teeth on the outer wall built into the through hole. Reciprocating movement, the teeth on the ratchet 5 can mesh with each tooth of the inner tooth 3, can rotate radially together in one direction and separate and can rotate independently. A handle 2 is connected to the radial outer wall of the through hole, the middle line of the handle 2 is the center line 1 of the handle, the center line 1 of the handle intersects the extension ...

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PUM

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Abstract

The invention discloses a unidirectional ratchet wheel, which is characterized in that a through hole with double circle centers (A, B) is arranged on a plane of even thickness at one end of a handle; the intersection point of the extended line of the connecting line between the circle centers A and B on a hole wall of the through hole near the handle is arranged as the center; one to twenty internal teeth are arranged along the radial direction on the left and the right sides of the hole wall; a ratchet wheel is positioned within the through hole; the ratchet wheel can be moved along the connecting line of circle centers A and B and meshed with the internal teeth; the ratchet wheel and the internal teeth can be rotated unnidirectionally together or separately; the centerline of the handle is intersected with the extended line of the connecting line of the circle centers A and B, or joint with the extended line as one line, or parallel with the extended line; the ratchet wheel is provided with a square hole or connected with a plurality of mechanical pieces; each tooth of the ratchet wheel is provided with an arc addendum face C, with the side length D larger than the side length E; and the side length T of the of the internal teeth larger than the side length L. The unidirectional ratchet wheel has the advantages of high performance, high torque, good intensity, light weight, no elastic pressure on the ratchet wheel, no lag in rotation, stable operation, reliability and convenient usage.

Description

technical field [0001] The invention relates to an intermittent motion mechanism, in particular to a one-way ratchet mechanism. Background technique [0002] Ratchet mechanisms are widely used in various industries. In order to improve work efficiency, the application of ratchet mechanism in the field of hardware tools is constantly expanding. With the development of science and technology, the existing ratchet mechanism has been difficult to adapt to the development of modern industry and agriculture. Therefore, the research on high-performance, high-torque ratchet mechanism has become an urgent problem to be solved by mechanical researchers. Therefore, there are many applications for ratchet mechanism patents in recent years. Chinese patent: a ratchet mechanism, patent No. 02228083.9, which is disclosed in the application, and the position of the working force of the multi-pawl is poor, so that the turning angle is small. Its principle is the same as the old-fashioned ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/46F16H27/00
Inventor 王宁生王宗孚
Owner 王宁生
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