Working principle of bevel cylindrical gear reducer
There are many types of reducers. Commonly used gear and worm gear reducers can be roughly divided into three categories based on their transmission and structural characteristics:
(1) There are three main types of gear reducers: cylindrical gear reducers, bevel gear reducers, and cone cylindrical gear reducers.
(2) The main types of worm gear reducers include cylindrical worm gear reducers, circular tooth worm gear reducers, cone worm gear reducers, and worm gear 360 Q&A reducers.
(3) Planetary reducers mainly include involute planetary gear reducers, cycloidal pinwheel reducers, and harmonic gear reducers.
One The main types, characteristics, and applications of commonly used reducers
1. Gear reducer
Single-stage cylindrical gear reducer, split type two-stage cylindrical gear reducer
Coaxial two-stage cylindrical gear reducer cone reducer
Cone cylindrical gear reducer worm reducer
Gear reducers can be divided into single-stage, two-stage, three-stage, and multi-stage reducers according to the number of reduction gears; According to the fixed arrangement of axes in space, there are two types of reducers: vertical and horizontal; According to the characteristics of the motion diagram, it can be divided into expansion type, coaxial type, and splitter type reducers. The maximum transmission ratio of a single-stage cylindrical gear reducer is generally 8-10, and this limitation is mainly made to avoid excessive external dimensions.
The two-stage cylindrical gear reducer is applied when the total center distance of 8-50 and grain zero high and low speed stages is 250-400mm. Three stage cylindrical gear reducer, used in situations where a large transmission ratio is required. Cone gear reducers and two-stage cone cylindrical gear reducers are used in transmissions that require a 90 degree configuration between the input shaft and output shaft. Due to the difficulty in precise manufacturing of large-sized bevel gears, the high-speed stage of bevel cylindrical gear reducers always uses bevel gear transmission to reduce their size and improve manufacturing accuracy. The characteristics of gear reducers are high efficiency, long service life, and easy maintenance, making them widely used.
2. Worm gear reducer
The characteristic of a worm gear reducer is that it can achieve a large transmission precision and shaft grid ratio even when the external dimensions are not large, while working smoothly and with low noise. The most widely used type of worm gear reducer is the single-stage worm gear reducer.
Single stage worm gear reducers can be divided into three types based on the position of the worm: upper worm, lower worm, and side worm. The required charging ratio range is generally i: 10-70. When designing, it is advisable to use a structure with a lower worm gear as much as possible to solve lubrication and cooling problems.
3. Made a Japanese border alliance grade worm gear reducer for a certain company
This type of reducer usually uses worm gear transmission as the high-speed stage because the transmission efficiency of the worm gear is higher at high speeds. Its applicable transmission ratio range is 50-130.
II Distribution of gearbox transmission ratio
Due to the maximum transmission ratio of a single-stage gear reducer not exceeding 10, when the total transmission ratio requirement exceeds this value, a two-stage or multi-stage reducer should be used. At this point, the reasonable allocation of transmission ratios at all levels should be considered, otherwise it will affect the size of the reducer's external dimensions and whether its load-bearing capacity can be fully utilized. According to different usage requirements, the transmission ratio can be allocated according to the following principles:
(1) Make each