What are the simple machines used on a bicycle? At least 5 5.

The most common mechanical devices we see in everyday life are levers, four-link mechanisms, and gear mechanisms. A lot of things can ultimately be attributed to these three above

1, the pressure of the water well pressure handles:

Using the principle of leverage made of the pivot point closer to the well, and the handle is longer, so that the force arm is longer, you can save energy. But by the principle of the lever can be known, the lever are save but not save work.

2, bicycle:

1, chain sprocket chain drive system;

2, by the steel ball and steel bowl bearing system;

3, bell in the rack-and-pinion drive system;

4, cushion in the spring damping system;

5, by the principle of leverage braking system.

There are many small mechanical devices on a bicycle that are the most typical mechanical devices in life

For example, the brake, which is made using the principle of leverage.

The stirrups are actually a crank mechanism.

The front sprocket and the rear sprocket are connected by a hinge, which is a simple chain drive mechanism in terms of mechanical principle

3, pliers, scissors

are also made using the principle of leverage. In fact, it is two small levers combined together, is a pliers or scissors

4, wrenches

still the principle of leverage

5, hydraulic jack

(I do not know if the owner has seen, that is, many drivers on the street car breaks down, out of the trunk, to the top of the car up to fix the car of the small things, the driver is always available items)

The internal structure is a simple hydraulic device. From the principle that there is also the application of the principle of leverage. Do not look at a hydraulic jack head is very small, but support a small car is very easy

6, electric sieve

This thing in the countryside with more, food on top, turn on the power supply, the electric sieve automatically swing, the unused things sieve down

The principle is a double-rocking rod mechanism in the large classification belongs to the four-link.

The earth is equivalent to a rod, the two swing bracket is the second, the third rod, the sieve is the fourth rod

You have to learn the principle of mechanics will know that the four rod mechanism according to the length of the relationship between the four rods can be formed into a crank-rocker mechanism, double rocker mechanism, double crank mechanism

Electric sieve is the formation of artificial production of a double-rocker mechanism

The specific structure of the car door

It is of course very complex, but in principle, the car door is actually a simple four-link mechanism

8, plunger pump

I don't know if you've ever seen it, that is, and the bicycle pump is almost the same, relying on the inside of the plunger in and out of the pumping or pumping of oil,

The principle is in fact The principle is actually a crank-slider mechanism, and the plunger is equivalent to the slider.

The crank-slider mechanism is actually a variant of the crank-rocker mechanism, and also said that the crank-rocker mechanism belongs to the four-link mechanism in the larger classification

9

Elevator

Elevator's internal structure is in fact very complex, not as the average person imagines, is a steel cable hanging an elevator compartment. Nowadays, the elevator internal collection of a variety of automatic control devices, a variety of sensors, and of course, most importantly, safety protection devices.

But mechanically speaking, the elevator is actually a worm gear mechanism. In the large classification, the worm gear mechanism belongs to a gear mechanism

10

Gear pump

A simple pump, pumping water or pumping oil, life is very common

is a typical gear mechanism

The gear pump is disassembled, it is actually two gears

Gear pumps are cheap, small size, the disadvantage is the work of the Cheap, small size, the disadvantage is the work of the noise, smaller displacement

First summarize so 10 it!

In fact, there are many simple mechanical devices in life, can be said to be everywhere,

If you give a few more examples of complexity that is more!

For example, the gearbox of a car, you have to take it apart to see, inside all the gears, which belongs to the wheel system, and the wheel system also belongs to the gear mechanism in the larger classification

Construction site cranes, on which there are levers, four-link gears, gears, hydraulics, pulley block 。。。。 There are so many

The lathe, have you seen it, it has almost every mechanism on it

A small car, it has almost every mechanism you can think of