Built-in wheel pair turntable with worm and gear driving rotation

Abstract

The invention discloses a built-in railway wheel pair turntable with worm and gear driving rotation, and relates to the technical field of railway vehicle wheel pair production and maintenance equipment. The turntable comprises a bottom plate; and a driving motor and a lifting mechanism are fixed on the bottom plate; the bottom end of the lifting mechanism is fixed on the upper surface of the bottom plate, and a supporting plate is fixed to the top of the lifting mechanism; and a vertical column is installed on the supporting plate, and a worm wheel is arranged on the outer side of the vertical column in a rotating fit manner through a bearing; the top end of the worm wheel is fixedly connected with a turntable through a connecting plate; a worm for driving the worm wheel to rotate is further arranged on the supporting plate, and one end of the worm is connected with a motor; a proximity switch is fixed on the supporting plate, and a plurality of sensing blocks which are in induction fit with the proximity switch are uniformly distributed on the bottom side face of the turntable. According to the turntable, the rotation is carried out through ascending and descending of the liftingmechanism controlled by the driving motor and the rotating structure composed of the worm and gear controlled by the motor correspondingly, so that the lifting and rotating directions of the turntable can be controlled and adjusted.

Description

technical field [0001] The invention belongs to the technical field of railway vehicle wheel set production and maintenance equipment, and in particular relates to a built-in wheel set turntable driven to rotate by a worm gear. Background technique [0002] Railway wheelsets are an important part of rail transportation. The railway wheel set all will be repaired and put into use after being used for a period of time. During the repair process, the wheel set is limited by the work site, and often needs to change the track. When starting and changing the track, the wheel set needs to be turned 90 degrees or 180 degrees. Due to the heavy weight of the wheel set and its positioning on the track, it is very difficult to adjust the direction . The currently widely used wheel-set turntable is an internal cutting type, that is, the diameter of the wheel-set turntable is larger than the inner distance of the track, the rail is fixed on the turntable, and the load-bearing point of t...

AI Technical Summary

Problems solved by technology

During the repair process, the wheel set is limited by the work site, and often needs to change the track. When starting and changing the track, the wheel set needs to be turned 90 degrees or 180 degrees. Due to the heavy weight of the wheel set and its positioning on the track, it is very difficult to adjust the direction

The currently widely used wheel-set turntable is an internal cutting type, that is, the diameter of the wheel-set turntable is larger than the inner distance of the track, the rail is fixed on the turntable, and the load-bearing point of the wheel-set rotation is the tread part, which has the following defects: 1. The wheel-set turntable is installed The track surface of the track needs to be cut, and the track surface is damaged. When the wheel set passes, the cutting part will have an impact on the passing wheel set, which will have a certain impact on the tread surface of the wheel set, especially the quality requirements of the high-speed train wheel set tread surface are not allowed. any safety hazard

2. When the wheel set passes the turntable, the turntable is subject to a large impact, and the turntable is easily damaged

At present, the built-in wheel-to-turntable gear transmission rotary drive mechanism requires a large space, the force point of the turntable and the force arm of the support point are long, the rotation process is easy to interfere, and the impact due to the existence of gear gaps during the rotation of the turntable, the failure rate of the turntable higher

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