| The current pretreatment and recovery process of waste power lead-acid battery(hereinafter referred to as power battery)mostly adopts the way of integral battery crushing or semi-manual disassembly.The former not only produces the lead slag in the recovery process,but also causes the secondary pollution of the environment,and leads to a low recovery rate of each component of the battery.Although the latter will not produce lead slag,but the efficiency is low,the intensity is big,to the worker's body harm is serious.In order to improve the above problems and cope with the coming explosion period of waste power battery recycling industry,this paper studied the disassembly process of green and efficient power batteries which can adapt to various types of power batteries.A variable spacing CAM mechanism was designed to improve the disassembly process adaptability.And this institution as the object of research,the specific content is as follows:(1)Under the guidance of green and efficient pretreatment technology,the disassembly requirements of power batteries were put forward by considering the structural characteristics and components of various power batteries.And according to this requirement to develop the disassembly scheme.Through the feasibility study of disassembly of power battery,the disassembly scheme is improved.On this basis,the adaptive disassembly process is planned.(2)In view of the problem that the disassembly device is difficult to adjust the cutter spacing in the adaptive disassembly process to adapt to the cutting and separation between the tank body and the pole group of various types of power batteries.The design concept of variable spacing CAM mechanism which can adjust cutter spacing is put forward.And according to the specification of the CAM mechanism design process,a complete design of the CAM mechanism.MATLAB software is used to simulate the follower motion equation to verify whether the follower motion law meets the design requirements.(3)The dynamic analysis of the variable spacing cam mechanism is carried out,and on the basis of comprehensive analysis of the force,the mathematical model of the self-locking condition of the CAM mechanism was established.The influence of self-locking coefficient that is the key factor of self-locking condition on driving resistance is determined.The influence of the design parameters of CAM forming self-locking coefficient on the dynamic characteristics of the CAM was determined by using the method of control variables.On this basis,the design parameters are optimized.Finally,the CAM design is improved according to the combination of optimized parameters.(4)ADAMS is used to simulate the motion of the CAM mechanism,and the feasibility test of the motion of the prototype of the CAM mechanism is carried out.To verify the correctness of theoretical calculation and dynamic optimization,and the practical motion feasibility of the CAM mechanism.(5)The finite element analysis of the CAM mechanism with ANSYS Workbench shows that its strength and deformation meet the design requirements far,so there is a space for lightweight optimization.Because the structure of other parts is closely related to the dynamic performance,only the two-stage lightweight design of topological optimization and size optimization is carried out for the cam plate,and the effect is obvious. |
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