Wonderful Mechanical Animation

01 Gatling Gun

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The Gatling gun is a manual multi-barreled rotary machine gun. It was designed by American Richard Jordon Gatlin in 1860. It was the first large-scale practical machine gun in the world. It uses a set of transmission mechanism to rotate several barrels around a common axis to complete continuous shooting.

The Gatling machine gun is mechanical. Initially, the barrel rotation needs to be manually rotated by the crank, but later it was improved to be completed by an electric motor. Its advantages are high rate of fire, great power, and the barrel can be cooled quickly, but the main disadvantages are large volume, large mass, and high energy consumption.

02 Worm gear reducer

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Worm gear reducer is a kind of power transmission mechanism that uses gear speed converter to decelerate the number of revolutions of the motor (motor) to the required number of revolutions and obtain a larger torque.

Its function: (1) Decrease speed and increase output torque at the same time. The torque output ratio is the motor output multiplied by the reduction ratio, but it should be noted that the rated torque of the reducer cannot be exceeded. (2) Deceleration reduces the inertia of the load at the same time, and the reduction in inertia is the square of the reduction ratio. You can see that a general motor has an inertia value.

03 Differential lock

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The central differential lock is a locking mechanism installed on the central differential, used for four-wheel drive vehicles.

Its function is to improve the passing capacity of the car on bad roads, that is, when one of the driving axles of the car is idling, it can quickly lock the differential and make the two driving axles become a rigid connection. In this way, most of the torque or even all of the torque can be transmitted to the non-slip drive axle, making full use of its adhesion to generate enough traction to enable the car to continue driving.

04 One-way clutch (gear)

The blue gear is the input. When the blue gear rotates counterclockwise, the entire gear structure moves; when the blue gear rotates clockwise, the middle yellow gear moves up and separates from the green gear. This device can only be used because the gears collide with each other. At low speed.

05 Single-degree-of-freedom cam mechanism

This is a cam mechanism that can realize a single degree of freedom movement on a plane. When the orange cam rotates, it drives the upper green handle to reciprocate up and down, and the circumference of the cam changes, and the length of each feed is different.

▲Do you know where this organization is used?

06 Coupling

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▲Cross slider coupling

A mechanical part used to connect two shafts (active shaft and driven shaft) in different mechanisms to rotate together to transmit torque. In high-speed and heavy-load power transmission, some couplings also have the function of buffering, damping and improving the dynamic performance of the shafting. The coupling is composed of two halves, which are respectively connected with the driving shaft and the driven shaft. The general power machine is mostly connected with the working machine by means of a coupling.

07 Universal joint

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The universal joint (that is, the universal joint) is a part that realizes variable-angle power transmission. It is used for the position where the direction of the transmission axis needs to be changed. It is the “joint” part of the universal transmission of the automobile drive system. The combination of universal joint and drive shaft is called universal joint transmission.

On the front-engine rear-wheel drive vehicle, the universal joint transmission is installed between the transmission output shaft and the drive axle final drive input shaft; while the front-engine front-wheel drive vehicle omits the transmission shaft, and the universal joint is installed Between the front axle half shaft and the wheels, which are responsible for both driving and steering.

08 Four-legged robot

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The robot is composed of a base plate and four legs. The two sides of the base plate are composed of a crank linkage mechanism. The bottom ends of the four linkage rods in the linkage mechanism are the four legs of the robot. The four links in the left and right two sets of link mechanisms alternately reciprocate, causing the robot’s four feet to alternately reciprocate and walk forward step by step.

09 Rubber Band Gun

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Rubber band gun is a classic toy, mostly wood or metal material as the gun body. Through a simple design, the elastic potential energy of the rubber band is cleverly used as the motive force to launch the rubber band itself as a bullet .

Unlike a slingshot, the rubber band in a rubber band gun not only provides power for the gun body, but also is fired as a bullet of the gun. The flexibility of the rubber band and the limited degree of elasticity just control the “power” of the rubber band gun bullet.