What part of the transmission mechanism of the walking conveyor?
Cone gear reducerYK series cone - cylindrical gear reducer for working conditions: ambient temperature -40 ~ 40 degrees; the input shaft speed of not more than 1500r/min, the gear meshing line speed is not greater than 25m/s, the motor starting torque is two times of the rated torque reducer. The characteristic of YK series: using a circular arc bevel gear and the one or two, three gear combination, the bevel gear as high level (four level reducer as level second), in order to reduce the size of the small bevel gear; gear are made of high quality alloy steel carburizing and quenching, refined processing, cylindrical gear accuracy reached GB/T10095 in the 6 stage, the bevel gear precision of GB/T11365 in grade 7;
Belt driveBelt drive design, should check the wheel size and its related parts size coordination. For example, the outer diameter of the belt pulley that is mounted on the reducer or motor shaft shall be coordinated with the reducer and motor center to avoid collision with the chassis or other parts.
Reducer selection principle: (1) according to the mechanical strength to determine the reducer specifications. Deceleration rated power P1N device is in stable load, work every day is equal to or less than 10h per hour, 5 times to start, allowing the starting torque for the contact strength safety factor of two times, the torque of the gear, the single one-way operation is 1, the failure probability is less than or equal to 1% is determined. When the load conditions are different in nature, work every day the number of hours is not at the same time, according to the work load of machine according to the classification of various factors are modified. The reducer two-way operation, will be seen P1N coefficient multiplied by 0.7 to 1, when the reliability KR reverse loads, reversing frequently, selected low for small value, and large value. Power down calculation: P2m=P2*KA*KS*KR, in which P2 is the working power; KA is the use factor; KS is the starting factor; KR is the reliable coefficient. (2) thermal power nuclear efficiency. Reducing the allowable heat power PG is applicable to the environmental temperature of 20 DEG C for 100% hour, continuous operation and power utilization (P2/P1N * 100%) is 100%, does not meet the above conditions, should be amended. (3) check the radial load on the shaft extension.
Belt driveBelt drive is one of the transmission devices that are widely used in mechanical equipment, mainly consisting of driving wheels, driven wheels and driving belts. The friction and engagement between the belt and pulley can be used to realize the movement and power transmission between the main wheel and driven wheel.The belt drive has the advantages of simple structure, stable transmission, low price, buffering, vibration absorption and overload slip, so as to protect other parts.
By looking at some documents, I can understand the design of belt drives and determine the direction of the research and the content of the design for the subjects I want to do.
