Convex-concave engaged arc gear and rack mechanism without relative sliding

A technology of arc gears and arc racks, which is applied in the direction of belts/chains/gears, mechanical equipment, transmission devices, etc., and can solve problems such as limited bearing capacity, low bending strength and low contact strength

Active Publication Date: 2017-03-22
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the meshing principles of these two rack and pinion pairs strictly follow the meshing theory of curved surfaces. From the design theory, there must be relative sliding between the tooth surfaces, so traditional tooth surface wear, tooth surface gluing and tooth surface plastic deformation cannot be avoided. The common failure mode of g

Method used

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  • Convex-concave engaged arc gear and rack mechanism without relative sliding
  • Convex-concave engaged arc gear and rack mechanism without relative sliding
  • Convex-concave engaged arc gear and rack mechanism without relative sliding

Examples

Experimental program
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Effect test

Example Embodiment

[0064] Embodiment 1: The present invention provides a convex-concave meshing arc gear rack mechanism without relative sliding, its structure is as follows figure 1 As shown, it includes a spiral arc gear 6 and an arc rack 8. The spiral arc gear and the arc rack form a pair of transmission pairs. The spiral arc gear is connected to the rotating shaft of the driver 1 through the center hole 10 of the spiral arc gear. In this embodiment, the driver is a motor, and the rotation direction of the motor is counterclockwise, which drives the spiral arc gear to drive counterclockwise to realize the horizontal movement of the arc rack to the left. The driver is installed on the driver mounting base 2, and the driver mounting base is fixed. The installation method of the spiral arc gear 6 and the arc rack 8 is as follows: the upper surface of the arc rack with the concave arc tooth groove 7 faces upward, and the rotation axis of the spiral arc gear must be parallel to the upper surface o...

Example Embodiment

[0120] Embodiment 2: The present invention provides a kind of convex-concave meshing circular arc rack and pinion mechanism without relative sliding, such as Image 6 As shown, the arc rack 8 is fixed, and the spiral arc gear 6 is connected to the rotating shaft of the driver 1 through the center hole 10 of the spiral arc gear. With the continuous meshing effect between the concave arc tooth groove 7, the helical arc gear moves in parallel while rotating, that is, the helical arc gear purely rolls on the arc rack. When the spiral arc gear and the arc rack are installed, the spiral convex arc tooth 5 on the spiral arc gear and a concave arc tooth groove 7 on the arc rack are in meshing state, and as the spiral arc gear rotates, the spiral The coincidence degree of the meshing of the convex arc teeth and the concave arc tooth grooves is greater than 1, thereby realizing the continuous and stable meshing transmission of the convex-concave meshing arc gear rack mechanism without r...

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Abstract

The invention relates to a convex-concave engaged arc gear and rack mechanism without relative sliding. The convex-concave engaged arc gear and rack mechanism without relative sliding comprises a transmission pair consisting of a spiral arc gear and an arc rack, wherein the spiral arc gear is connected with a rotating shaft of a driver; spiral convex arc teeth are uniformly distributed on the outer surface of the spiral arc gear; center lines of the spiral convex arc teeth of the spiral arc gear are equal-lift cylindrical spiral lines; concave arc tooth grooves are uniformly distributed in the upper surface of the arc rack; the spiral convex arc teeth are matched with the concave arc tooth grooves; and the structural shape of the spiral arc gear and the structural shape of the arc rack are determined by design parameters. When the mechanism is mounted, the spiral convex arc teeth are correctly engaged with the concave arc tooth grooves, and therefore, arc gear and rack transmission is realized. The arc gear and rack mechanism does not have failure modes such as tooth surface relative sliding, tooth surface gluing, tooth surface abrasion and tooth surface plastic deformation, has the advantages of high contact ratio, simple structure, high transmission efficiency, high bearing capacity and the like, and is suitable for being popularized and used in the fields of tiny machines, micro-machines and conventional machines.

Description

technical field [0001] The invention relates to a convex-concave meshing circular arc gear and rack mechanism without relative sliding, in particular to a convex-concave meshing circular arc gear tooth without relative sliding for rack and pinion transmission based on the principle of curve meshing article organization. Background technique [0002] As the basic form of transmission in mechanical transmission, gear transmission is widely used in the fields of industry, agriculture, medicine, national defense, military and aerospace. The development of modern industrial equipment has further increased the requirements for the quality and performance of gear transmission components. The design theory and manufacturing technology of the new high-performance gear transmission mechanism have promoted the continuous improvement and innovation of the gear meshing theory, and there have been diversified gear meshing forms and corresponding diversified tooth structures. [0003] In...

Claims

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Application Information

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IPC IPC(8): F16H19/04F16H55/08
CPCF16H19/043F16H55/0826
Inventor 陈祯丁华锋文国军罗林波杨静
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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