Variable tooth thickness gear test bench

Abstract

The invention discloses a variable tooth thickness gear test bench. The test bench comprises a base plate. The base plate is provided with two opposite input shaft bearing seats, two bearing seat supports and two adjusting supports facing to each other, wherein the bearing seat supports are parallel to the input shaft bearing seats; and the adjusting supports are located on an axial outer side of the bearing seat supports. An adjusting shaft intermediate section screw is cooperated with a screwed hole on an adjusting support side wall support and passes through the screwed hole. One end of an adjusting shaft, which is extended out of each adjusting support, is connected to an adjusting handle through a connection pin. A front end screw of the adjusting shaft, which is located in an inner side of each adjusting support, is cooperatively connected with the screwed hole of a sliding inclined block. A top of each bearing seat support and a bottom of a mobile bearing seat is connected in a combination mode through a dovetail groove. A wedge inclination block is clamped between the sliding inclined block and the mobile bearing seat. In the invention, an included angle of a variable tooth thickness gear shaft, a distance between the shafts and a gear axial distance can be adjusted slightly, and the test bench is used to research influences of a parallelism error, an axial spacing deviation and different axial distances on meshing performance and transmission precision of a variable tooth thickness gear pair.

Description

technical field [0001] The invention relates to a transmission test bench, in particular to a variable tooth thickness gear test bench. Background technique [0002] Variable tooth thickness helical gear, also known as involute conical helical gear, this patent is referred to as variable tooth thickness gear. It belongs to an involute gear, and the tooth shapes in each end section perpendicular to the axis are all involutes, and only the displacement coefficients in each section are different. Since the working tooth surface of the variable tooth thickness gear is an involute helical surface, it can be conjugated with most involute gears such as spur gears, helical gears, worms and racks. [0003] There are many transmission forms of variable tooth thickness gears, which can realize transmission between parallel shafts, intersecting shafts and staggered shafts, and adjust the backlash by adjusting the axial position to change the gear backlash. However, in actual engineeri...

AI Technical Summary

Problems solved by technology

However, in actual engineering, due to the existence of processing and assembly errors, the meshing performance of variable tooth thickness gear pairs will be affected, especially the center distance deviation and parallelism error will have a greater impact on the contact state of variable tooth thickness gear pairs

At present, there is no test bench suitable for measuring the load capacity and transmission efficiency of variable-tooth-thickness gear pair meshing

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