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Spiral-arc gear mechanism for parallel-shaft external-engaged transmission

An arc gear and parallel shaft technology, applied in the field of helical arc gear mechanism, can solve the problems of limited use range, limited load, transmission failure, etc., and achieve good manufacturability and economy, high strength and rigidity, and large bearing capacity. Effect

Inactive Publication Date: 2015-05-06
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest limitation of the above-mentioned transmission mechanisms is that they rely on the space slender hook rods on the main and driven wheels for meshing movement, and the load they can bear is very limited, so they can only realize the continuous transmission of small forces or motions in small spaces , but cannot realize the conventional power transmission necessary for industrial applications between two parallel shafts in the plane; and there is a large gap between the hook rods, in the case of frequent forward and reverse transmission, the hook rods will be greatly affected Impact, or even break, causing transmission failure
Therefore, the scope of use is greatly limited

Method used

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  • Spiral-arc gear mechanism for parallel-shaft external-engaged transmission
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  • Spiral-arc gear mechanism for parallel-shaft external-engaged transmission

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Embodiment 1

[0043] Embodiment 1: The present invention provides a helical arc gear mechanism for external meshing transmission of parallel shafts, which adopts the external meshing transmission mode of parallel shafts and is applied to deceleration transmission, and its structure is as follows figure 1 As shown, the small wheel 5 and the large wheel 3 are included, and the small wheel 5 and the large wheel 3 form a pair of transmission pairs. The small wheel 5 is connected to the input shaft 7, and the large wheel 3 is connected to the output shaft 4, that is, the large wheel 3 is connected to the output shaft 4 through the output shaft 4. The driven loads are connected; the axes of the small wheel 5 and the big wheel 3 are parallel to each other.

[0044] Described steamboat 5 structure sees figure 1 , 2 , 3, spiral arc grooves 6 are evenly distributed on the outer surface of the cylinder of the small wheel 5, and the radius R of the cylinder of the small wheel 5 1 It is equal to the s...

Embodiment 2

[0071] Embodiment 2: A helical arc gear mechanism for parallel shaft external meshing transmission of the present invention is applied to speed-up transmission in the parallel shaft external meshing transmission mode. Such as Figure 7 As shown, the large wheel 3 is used to connect the input shaft 7, and the small wheel 5 is connected to the output shaft 4, that is, the small wheel 5 is connected with the driven load through the output shaft 4; the axes of the small wheel 5 and the large wheel 3 are parallel to each other. In this embodiment, there are eight spiral arc teeth 1 on the bull wheel 3, and a spiral arc groove 6 on the small wheel 5. When the input shaft 7 drives the bull wheel 3 to rotate, due to the installation of the bull wheel 3 and the small wheel 5 , the spiral arc groove 6 on the small wheel 5 is in mesh with a spiral arc tooth 1 on the bull wheel, and when the bull wheel 3 rotates, the rotation of the big and small wheels keeps the spiral arc groove and the...

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Abstract

The invention relates to a spiral-arc gear mechanism for parallel-shaft external-engaged transmission. The spiral-arc gear mechanism comprises a transmission pair consisting of a bull wheel and a pinion wheel, wherein the pinion wheel is connected with an input shaft, the bull wheel is connected with an output shaft, the axis of the pinion wheel and the axis of the bull wheel are parallel to each other, spiral arc grooves are uniformly distributed in the external surface of a cylindrical body of the pinion wheel, spiral arc teeth are uniformly distributed in the external surface of a cylindrical body of the bull wheel, both center lines of the spiral arc grooves and center lines of the spiral arc teeth are cylindrical helices, and the spiral arc grooves of the pinion wheel are matched with the spiral arc teeth of the bull wheel. When the pinion wheel and the bull wheel are mounted, one pair of spiral arc groove and spiral arc tooth is firstly enabled to be engaged with each other, a driver drives the input shaft and the pinion wheel to rotate, and thus, the external-engaged transmission between the two parallel shafts is realized; the shapes of the spiral arc grooves and the shapes of the spiral arc teeth can be determined by parameters, such as a transmission ratio, and a central line equation. The spiral-arc gear mechanism is simple and compact in structure, small in size, light in weight, high in strength and rigidity, high in contact ratio and high in single-stage transmission ratio and is suitable for being applied to the fields of small, micro and conventional machinery.

Description

technical field [0001] The invention relates to a helical arc gear mechanism for external meshing transmission of parallel shafts, in particular to a helical arc gear mechanism based on the theory of curve meshing. Background technique [0002] As the basic transmission element in mechanical transmission, gears realize the function of motion or power transmission. Gears are widely used in industry, agriculture, medicine, national defense, aerospace and other fields. The gear industry has become the largest industry in the mechanical infrastructure of most countries. 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 diversif...

Claims

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Application Information

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IPC IPC(8): F16H1/08F16H55/08F16H57/023
CPCF16H1/08F16H55/08F16H57/023F16H2700/00
Inventor 陈祯李波赵权杨静
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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