The gear rack will have its own unique motion characteristics in the transmission process: the gear transmission is used to transmit the motion and power between any two shafts. Its circumferential speed can reach 300m / s, the transmission power can reach 105kW, and the gear diameter can be less than 1mm to 150m. It is the most widely used mechanical transmission in modern machinery.
Advantages
The screw drive has high precision and high cost. However, under long-distance heavy load, the screw rod is easy to bend These conditions do not exist.
Compared with belt drive, rack and pinion drive has the following advantages:
(1) It has the characteristics of high power transmission and high efficiency gear transmission. Gear transmission is used to transmit motion and power between any two shafts. Its circumferential speed can reach 300m / s, transmission power can reach 105kW, and gear diameter can be less than 1mm to 150m. It is the most widely used mechanical transmission in modern machinery.
(2) Long service life, stable operation and high reliability;
(3) It can ensure a constant transmission ratio and transmit the motion between two shafts at any included angle.
Disadvantages
The main disadvantages of gear transmission compared with belt transmission are:
(1) The manufacturing and installation accuracy requirements are high, so the cost is also high;
(2) It is not suitable for long-distance transmission.