Double shunt high torque flat double gear box and distribution box average load adjusting method thereof

Abstract

The invention relates to a double shunt high torque flat double gear box. The double shunt high torque flat double gear box comprises a deceleration box on the right side and a distribution box on theleft side. An input shaft of the gear box is connected to a motor, torque from the motor separately transmits 50% of torque to left and right parallel first drive output shafts and second drive output shaft after three stages of deceleration, and 50% torque of the first drive output shaft is transmitted directly to a first output shaft of the distribution box through an involute spline. The distribution box is further provided with a second output shaft and two auxiliary shafts, the two auxiliary shafts are arranged symmetrically up and down, each auxiliary shaft includes a first tooth shaftand a second tooth shaft, and the first tooth shafts and the second tooth shafts are connected by spline sleeves. A first distribution gear is simultaneously meshed with gears of the first tooth shafts symmetrically arranged up and down, and a second distribution gear is simultaneously meshed with gears of the second tooth shafts symmetrically arranged up and down. The double shunt high torque flat double gear box realizes large torque output of double output shafts under small center distance, realizes average load, and greatly improves the bearing capacity of the gear box.

Description

technical field [0001] The invention relates to the technical field, in particular to a double-shunt high-torque flat-double gear box and a load-equalizing debugging method for its distribution box. Background technique [0002] Parallel twin-screw extruder gearbox (hereinafter referred to as parallel twin-screw gearbox) is a very important part of parallel twin-screw extruder, and its structural design directly affects the normal operation of the entire machine system. Since the gear box of the parallel twin-screw extruder relies on the large thrust of the output shaft to carry out rubber mixing, the center distance between the two screws is relatively small, and the output structure requires high rotation accuracy, so it is difficult to design and process this product. [0003] The torque distribution of parallel twin-screw extruder gearboxes currently on the market is mainly flat three-axis transmission, that is, the first output shaft 5 , the second output shaft 7 and th...

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Problems solved by technology

[0005] 1. The first output shaft is an optical shaft, which is a pure torque output shaft; the second output shaft is a gear shaft, which is a combined bending and torsion shaft, and the bearing on this shaft bears radial force; and the center distance a is a fixed value, which needs to be selected Appropriate bearings meet the life requirements, so the shaft diameter is limited

[0006] 2. The torque of the second output shaft is transmitted through two pairs of forward and reverse helical gears, and the speed ratio of these two pairs of gears is 1:1, resulting in very low gear contact strength

[0007] Based on the above two points, the current gearboxes for parallel twin-screw extruders have defects such as low transmission torque and poor reliability, which cannot meet the increasingly high production efficiency requirements of the twin-screw extruder industry.

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