Planetary differential all-terrain track wheel structure

Abstract

The invention discloses a planetary differential all-terrain crawler structure, which comprises a planetary differential mechanism, a crawler mechanism and a transmission connection mechanism. The transmission connection mechanism is mainly composed of a main support, a steering knuckle, a main support connection plate, a central shaft, a transmission shaft and a transmission chain. The planetary differential mechanism includes a sun gear arranged coaxially with the ring gear, and planetary gears that are sleeved and rotatably connected to the output shaft of the planet carrier, and meshed with the sun gear and the ring gear respectively. The crawler wheel mechanism is provided with a tension wheel connected to the main support shaft and inscribed with the track on the outer side of the main support, and an active support wheel connected with the main support bearing and inscribed with the track at the top position of the main support. and driven support wheels. The invention has reasonable structure design, compactness, stable transmission, high cost performance, and can effectively improve the ability to pass over vertical walls, and is a safe and reliable planetary differential all-terrain crawler wheel structure.

Description

technical field [0001] The invention relates to a differential mechanism for an all-terrain vehicle, in particular to a planetary differential all-terrain track wheel structure. Background technique [0002] In the prior art, the crawler wheel structure used by all-terrain vehicles is mainly composed of crawler belts, driving wheels and driven support wheels. The driving wheels are used to drive the crawler belts to form forward power, and the two pairs of driven wheels set under the driving wheels The support wheels act as guide wheels to control the direction of the track movement. The height h of the existing crawler wheel over the vertical wall is generally the center height of the lower right front guide wheel from the ground, h≈15---25cm, and the height of the vertical wall reflects the ability of the all-terrain vehicle to overcome obstacles. The existing crawler wheel structure for all-terrain vehicles has the following disadvantages because of its unreasonable desi...

AI Technical Summary

Problems solved by technology

The existing crawler wheel structure for all-terrain vehicles has the following disadvantages because of its unreasonable design: 1. After the track wheels are installed on the all-terrain vehicle, the center of gravity of the all-terrain vehicle rises, and the ability to pass the vertical wall h is relatively poor, that is, h is about half of the center height of the driving wheel. When passing through snow or puddles, obstacles with a vertical height higher than h appear on the road, it is easy to cause the vehicle to stop suddenly, which will cause accidents to the driver. When the speed is high , even overturn

2. To improve the ability to overcome obstacles, it is necessary to increase the height of the track wheel over the vertical wall. At this time, it is necessary to lift and move the lower right front guide wheel to the upper right front during design, so that the overall volume of the track wheel will increase. , and the height of the track wheel over the vertical wall cannot be higher than the height of the driving wheel (because the higher the guide wheel is, the easier the track will slip). This design not only increases the production cost, but also has unreasonable appearance and structure, and even causes all-terrain The serious consequences of being unable to drive when the car encounters an obstacle

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