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Gear and method of making the same

A manufacturing method and technology of gears, applied in the directions of belts/chains/gears, gear teeth, components with teeth, etc., can solve problems such as stress increase and damage, and achieve the effect of improving long-term durability characteristics

Active Publication Date: 2022-07-22
ENPLAS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this kind of gear, when meshing with the teeth of the other gear, stress tends to concentrate on the concave point of the bottom of the tooth, and the stress may increase and cause damage.

Method used

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  • Gear and method of making the same
  • Gear and method of making the same

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Embodiment Construction

[0057] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0058] figure 1 It is a front view which shows the whole shape of the gear of this invention. The gear has a plurality of teeth, and is used for transmission of rotational motion between two shafts by meshing with the teeth of the opposite gear.

[0059] exist figure 1In the gear 1, a plurality of teeth 3, 3, . . . are formed on the outer peripheral side of a substantially disc-shaped web 2, and a boss 5 is formed in the center of the web 2, and the boss 5 is provided with a rotating The shaft hole 4 on which the shaft is fixed transmits rotational motion between the two shafts. In addition, the symbol P represents the pitch circle of the gear 1 .

[0060] Generally as figure 2 As shown, the teeth 3 of the gear 1 are formed into the tooth profile of a standard gear which has an involute curve tooth surface and is bilaterally symmetrical. That is, the...

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Abstract

The present invention is a gear which has a plurality of teeth (3) and transmits rotational motion by meshing with the teeth of a counterpart gear, and the shape (b) on the root side of each tooth (3) includes a first curve (c) and the second curve (d), the first curve (c) is a curved surface smoothly connected to the tooth surface (a) of the involute curve, and passes through the tooth surface relative to the involute curve. (a) is represented by a curved line protruding in the opposite direction, the second curved line (d) is smoothly connected to the first curved surface (c), and the second curved line (d) is in the same direction with respect to the first curved surface (c). Defined by a hyperbolic function with a prominent direction. As a result, when meshing with the teeth of the counterpart gear, the stress generated on the side of the tooth root can be reduced, and the strength of the teeth can be increased.

Description

[0001] This application is a divisional application of the following patent applications: [0002] Application number: 201380049049.X [0003] Application date: September 17, 2013 [0004] Title of Invention: Gear and its manufacturing method technical field [0005] The present invention relates to a gear which has a plurality of teeth and transmits rotational motion between two shafts by meshing with the teeth of the opposing gear. A gear with a tooth shape that generates stress and can achieve high strength of the teeth, and a method for manufacturing the same. Background technique [0006] Conventionally, gears used in power transmission mechanisms such as automobiles and precision machinery have been designed with various designs for improving the strength of the teeth. [0007] As such a gear, in a disk gear having teeth and tooth grooves, that is, a gear in which the teeth engage with a counterpart gear (pinion) interlocked by the tooth surface, there is a structur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H55/17F16H55/08B23F5/00
CPCF16H55/0806B23F5/26Y10T74/19949Y10T409/105883
Inventor 近江宪仕
Owner ENPLAS CORP
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