Main features of mechanical motion and advantages and disadvantages
1. Gear transfer
Gear rotation is the most widely applied form of mobility in mechanical motion. Its transmission is accurate, efficient, structured, reliable and long-lived. The gear movement can be divided into many different types according to different criteria。
Advantages:
The structure is compact and applies to close-range motion; the applicable round speed and power range is wide; the movement is accurate, stable and efficient; the work is reliable and has a long life; and the movement between parallel axes, any angles and any angles is possible。
Disadvantages:
Higher manufacturing and installation requirements, higher cost; inappropriate for movement between long-range axes; no overload protection。
2. Turbo pole transmission
Motion and power between the two axes applied to space vertically and without intersection。
Advantages: bigger motion; tight structure。
Disadvantages: high axle orientation, heat susceptibility, inefficiency, one-way movement only。
The main parameters for vortex movement are: number of moulds; pressure angles; snail wheel fractions; snail fractions; guide; snail gear numbers; number of snail heads; moving ratio, etc。
3. Passage
Belt transfer is a mechanical move using a soft belt attached to the wheel for movement or power transfer. The conveyance usually consists of a active wheel, a wheel from the wheel and a ring strap that is attached to two rounds。
1) to be used in the same two-axis parallel reverse direction, known as opening motion, centre distance and corner。
2) the cross-section shape of the band can be divided into three broad categories: flat, v and special band。
3) the application focuses on: the calculation of the moving ratio; the calculation of the stress analysis of the belt; and the power allowed for the single v band。
4) main features of the movement:
Advantages:
It applies to a wide range of two-axis centres, which are well-taught, which mitigates shocks and absorbs vibrations; slides overload to prevent damage to other parts; and is simple and inexpensive in structure。
Disadvantages:
The contours of the movement are large; it requires a tighter device; it does not guarantee a fixed moving ratio due to slippage; it has a shorter lifetime; and it is less efficient。
4. Chain transfer
Chain movement is a way of transferring the movement and power of the active wheel with special teeth through the chain to the moving wheel with special teeth. These include active chains, arterial chains, ring chains。
Advantages: chain motion has many advantages: inflexible slides and slides in comparison to carried motion, average passivity is accurate, reliable and efficient; transmission power is high, overloading capacity is strong, and transmission sizes under the same conditions are small; the pressure on the axis is low because of the tightness required; and it works in harsh environments such as high temperatures, dampness, dustyness and pollution。
The precision of manufacture and installation is lower than that of gear transfer; the moving structure is simple when the centre is larger; the speed of the chain is instantaneous and the rate of movement is not constant, and the smoothness of the movement is poor。
Shortcomings: the disadvantages of chain movement are that it can only be used between two parallel axes; that it is costly, perishable, stretchable, slow to move, and that it operates with additional motor loads, vibrations, shocks and noise, which should not be used in rapid reverse movements。
5. Wheel system
A movement consisting of more than two gears is called the wheel system. The gears of the gears can be divided into ordinary gears and planetary gears, depending on whether or not the axis motion is present in the wheel system。
1) the rotational systems are divided into two types: the fixed-axis and the swing-wheel systems。
2) the ratio of the input axis in the rotation to the angular velocity (or rotation) of the output axis is referred to as the movement ratio of the wheel system. Is equal to the ratio of all the multipliers of the gears from the rodents in the rodents to all active gears。
3) in the rota system, gears with changes in the position of the axis, i. E., gears with both rotation and public rotation, are called planetary wheels, while gears with fixed position of the axis are called central or solar wheels。
4) the movement ratio of the swing wheel system cannot be calculated directly by the method of determining the flow ratio of the axle wheel, and must be calculated using the principle of relative motion and using the relative speed method (or inverse method) to transform the wheel system into a hypothetical fixed wheel system。
5) main characteristics of the rotational system:
For movement between two axes at a distance; as a transformer to achieve speed transfer; to obtain a larger rate of motion; to achieve synthesis and decomposition of motion
