Overview of the hottest gear transmission mechanis

Overview of gear transmission mechanism

1 characteristics and classification of gear transmission mechanism

characteristics of gear transmission mechanism:

a. gear mechanism is the most widely used transmission mechanism in modern machinery, which is used to transmit the motion and power between any two or more shafts in space

b12. Provide a variety of report printing interfaces The main advantages of polyimide gear transmission are high transmission efficiency, compact structure, reliable operation, long service life and accurate transmission ratio

c. main disadvantages of gear mechanism: high manufacturing and installation accuracy requirements, expensive price, not suitable for occasions with large distance between two shafts

classification of gear transmission mechanism

according to the relative position of the shaft, parallel shaft gear transmission mechanism ① intersecting shaft gear transmission mechanism, staggered shaft gear transmission mechanism ② according to the relative position of the tooth line relative to the generatrix of the gear body, straight teeth, helical teeth, herringbone teeth, curved teeth according to the tooth profile curve, involute teeth, cycloid teeth, circular arc teeth according to the working conditions of the gear transmission mechanism, closed transmission, open transmission Semi open transmission ③ according to the tooth surface hardness, soft tooth surface (≤ 350hb), hard tooth surface (>350hb)

Description:

① parallel shaft gear transmission mechanism is also called planar gear transmission mechanism

② intersecting shaft gear transmission mechanism and intersecting shaft gear transmission mechanism are collectively referred to as spatial gear transmission mechanism

③ the gear of closed transmission is enclosed in the box, and the lubrication is good; The gears of open transmission are completely exposed, and good lubrication cannot be guaranteed; The gear of semi open transmission is immersed in the oil pool and equipped with a protective cover, which is not closed

parallel shaft gear transmission mechanism

(cylindrical gear transmission mechanism) straight tooth helical tooth herringbone gear rack internal gear intersecting shaft gear transmission mechanism

(bevel gear transmission mechanism) straight tooth helical tooth curved tooth staggered shaft gear transmission mechanism helical worm gear hypoid

gear

2 basic requirements of transmission:

in the research, design and production of gear transmission mechanism, Generally, the following two basic requirements should be met:

1 Stable transmission -- keep the instantaneous transmission ratio unchanged during transmission. He hopes that both sides can further strengthen cooperation and minimize impact, vibration and noise

2. Large bearing capacity -- on the premise of small size and light weight, high strength, good wear resistance and long service life of gear teeth are required. (end)