QY4D type series reducer QYS type (including three fulcrum) and QYD type (base-every) two series of crane hard-toothed surface reducer. It has 3 and 4 and three level 4 combination model 3 kinds.

The speed reducer is mainly used in the relevant agencies, also crane can be used to transport, metallurgy, mine, chemical industry and light industry machinery equipment in the transmission. Its working conditions for:

(1) Gear circumference speed is not more than 20m/s;

(2) High speed is 1500r/shaft speed with min;

(3) Working environment temperature of 40 degree ~ + - 45 degree

(4) Can be both the positive and negative to the operation.

Performance characteristics

Consider the working characteristics of crane agencies, transmission range, further improve product performance, using less specification meet user requirements, the characteristics of various for:

(1) High bearing capacity. Gear adopts cementite, quenching and gear grinding machining, carrying capacity piece. Modified roll teeth than in the soft tooth surfaces and stiff face gear reducer has greatly improved.

(2) Small volume, light weight. And soft tooth surfaces and hard-toothed surface, compared to the same carrying capacity of gear reducer gear reducer can reduce 2 ~ 4 quite a seat number.

(3) High efficiency, low noise, small vibration. Adopt gear grinding machining improves precision grades, gear and repairing rim, the comprehensive efficiency per level to 0.98 gear, vibration and noise significantly reduced.

(4) Adopts many series, reduce speed, can pull a single stage center distance, reduce speed reducer, satisfy the high requirements of crane agencies; The biggest nominal transmission gear reducer of 400 and meet the requirements of slow crane.

(5) 3 fulcrum reducer, but horizontal and vertical, even deflection Angle installation, convenient.

(6) The series three level 4 combination model gear reducer (i. e. Level 3 assembly form, four level of transmission ratio) to slow crane generalization provides premise.