Shenzhen Double Ten's Equivalent Dynamic Model of Mechanical Transmission Mechanism

Date:2020/11/30 8:51:46 / Read: / Source:本站

Shenzhen Double Ten's Equivalent Dynamic Model of Mechanical Transmission Mechanism
    The mechanical transmission mechanism itself is a dynamic system, and the external force it bears is a motor
 Output torque (ie electromagnetic torque) M(t), external load force F, (t), guide rail and transmission
 The solid friction force FR of the parts and the damping force of the transmission parts and the guide rail. In the system
 Perform linear motion (or angular displacement) for the mass of the executive part, and each transmission part performs rotary motion
 When moving, each rotating part has its own inertial mass. Analyze the theoretical basis of such a mechanical system
 According to the well-known dynamic theorem. Shenzhen Double Ten
    For the convenience of analysis and calculation, the actual transmission mechanism is often simplified into equivalent power
 Learning system. The transmission mechanism shown in Figure 6-1 can be simplified as shown in Figure 6-2a
 An equivalent shaft torsional vibration system on the motor shaft. C, is the damping, kL is the equivalent axis
 The torsional stiffness of the actuator and the equivalent moment of inertia of each transmission ratio is JL + all friction
 Friction and cutting force are equivalent to load torque M; the equivalent dry damping of the system is B1,
The output angular displacement of the mechanism is 01.0M, and the other is the input of the mechanical transmission mechanism.
 Torque and input angular displacement. Shenzhen Double Ten
    In addition, the same mechanical transmission mechanism can be simplified into
 An equivalent spring mass vibration system as shown in Figure 6-2b
 System. Take the moment of inertia J of the worm and the moment of inertia Ir of the transmission between the worm and the motor as the negative
 The inertia 10 worm's transmission force F to the actuator can be equivalent to the load on the motor shaft
 Torque where ‘2E, L is worm Shenzhen Double Ten
 The lead of the rod. The transmission stiffness k is used as the stiffness of the equivalent spring. Acting on mass m
The external forces on the executive parts are: cutting resistance, the guide rail and between the transmission parts
 Friction Fan. And the driving force of playing praise (x one two.) k.
    Therefore, in order to analyze and calculate the mechanical transmission mechanism, we must first enter various parameters
 Equivalent conversion. The conversion method is introduced below.


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