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Transmission mechanism

A technology of speed change mechanism and moving mechanism, which is applied in the direction of mechanical equipment, hoisting device, transmission device, etc. It can solve the problems of unreliable transmission of torque, unstable meshing of chain and pinion sprocket, etc., and achieve stable meshing, The effect of reliable torque transmission

Inactive Publication Date: 2017-08-01
JATCO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the meshing between the chain and the pinion type sprocket becomes unstable, and torque may not be transmitted reliably

Method used

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Embodiment approach

[0038] Next, a transmission mechanism according to an embodiment will be described.

[0039] (1. Structure)

[0040] Such as figure 1 As shown, the transmission mechanism includes two sets of compound sprockets 5, 5 and a chain 6 wound around these compound sprockets 5, 5. Here, a silent chain is exemplified as the chain 6 , but a roller chain may also be used as the chain 6 . also,figure 1 The blank arrows in the indicate the direction of revolution.

[0041] One of the two sets of compound sprockets 5, 5 is a set of compound sprockets 5 ( figure 1 , shown on the left), and the other is the compound sprocket 5 ( figure 1 center, shown on the right). Since these composite sprockets 5, 5 have the same structure, the structure of the composite sprocket 5 on the input side will be mainly explained.

[0042] The composite sprocket 5 is an apparent large sprocket formed such that a plurality of pinion type sprockets 20 and a plurality of guide rods 29 constitute vertices of a...

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PUM

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Abstract

A transmission mechanism is equipped with compound sprockets, which have a pinion sprocket (210) rotatably supported in the radial direction with respect to rotary shafts 1 to which driving force is input and is output, and a movement mechanism that moves the pinion sprocket (210) synchronously in the radial direction while maintaining the pinion sprocket at the same distance from the axial center (C1) of the rotary shaft (1), and also equipped with a chain, which is wrapped around the two sets of compound sprockets, with the transmission ratio being changed by changing the radius of an circumscribed circle, which is the circle surrounding and contacting the pinion sprocket (210). The pinion sprocket (210) is formed in the shape of a sector gear having a tooth part (212) that follows the circumference of a minimal radius circumscribed circle (A1) and meshes with the chain. Thus, it is possible to reliably transmit torque.

Description

technical field [0001] The present invention relates to a transmission mechanism comprising a plurality of pinion-type sprockets which are movably supported in the radial direction while maintaining an equidistant distance from the rotation shaft, and revolve around the axis center of the rotation shaft (rotate integrally with the rotation shaft) (pinionsprocket) and the chain wound around the multiple pinion sprockets to transmit power. Background technique [0002] Currently, a transmission in which a drive belt is wound around a primary pulley and a secondary pulley is being put into practical use. In this transmission, a frictional force generated between each pulley and a drive belt by a thrust applied to a movable pulley of each pulley is used. [0003] In this type of transmission, when a large power is transmitted, it is necessary to increase the thrust to ensure frictional force. In this case, the load on the drive source (engine or electric motor) that drives the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H9/24F16H55/30
CPCF16H55/30F16H9/24F16H9/10F16H55/54F16H55/566F16H2055/0893
Inventor 丹下宏司
Owner JATCO LTD
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