MATLAB based cycloid gear parameter optimization method

Abstract

The invention discloses an MATLAB based cycloid gear parameter optimization method. The method comprises the following steps: step1. obtaining number ZP of needle teeth and needle teeth central circle radius rp; step2. according to restricting conditions, obtaining an eccentric distance and a needle gear sleeve outer circle radius rrp; step3. determining tooth number range and maximum engagement force involving in engagement simultaneously at the moment when the cycloid gear transmits; and step4. when needle teeth contact stress reaches strength requirement and rotary arm bearing life meets the requirement, outputting the eccentric distance a and the needle gear sleeve outer circle radius rrp, otherwise, executing step 2 until the requirement is met. According to the cycloid gear parameter optimization method, cycloidal gear parameter optimization is completed by analyzing basic principles of cycloid pin gear transmission and a design method of the cycloid gear. In the optimization, main parameters affecting cycloid gear transmission carrying capacity, the eccentic distance and the needle tooth radius rrp, are used as design variables, cycloid pin gear engagement strength and rotary arm bearing life are to-be-solved targets, and certain constraints are met.

Description

technical field [0001] The invention relates to the technical field of cycloidal wheels, in particular to a method for optimizing cycloidal wheel parameters based on MATLAB. Background technique [0002] Cycloidal pin wheel planetary transmission has the advantages of large transmission ratio range, small size, light weight, high efficiency, stable operation, low noise, and reliable operation. It is widely used in many occasions such as heavy transportation and military industry. [0003] The cycloidal wheel is the core component of the cycloidal pin wheel planetary transmission, and its design parameters are many, and the calculation process is very complicated. In particular, some important parameters directly affect the overall performance and service life of the cycloid reducer. Traditional design methods often pre-select the basic parameters based on experience, and then gradually calculate the remaining required parameters. However, due to the large amount of calcul...

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Problems solved by technology

There are two methods for the traditional cycloidal wheel design: First, the technicians check and calculate the contact stress related formula of the cycloidal wheel and the pin tooth surface according to the relevant principles of mechanics, so as to ensure that the cycloidal wheel and the pin tooth are in the process of meshing. It can work normally and safely, but this method has high requirements for technicians. When the size and load of the cycloidal wheel change, it needs the repetitive work of the staff, which is inefficient; It has incomparable advantages, but its cost is high, the operation is complicated, time-consuming and labor-intensive. Generally, this method is used for final strength verification before the design is finalized and put into use, and it is not suitable for use in the design process.

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