Inner planetary gear type stair climbing device

Abstract

The invention aims to provide an inner planetary gear type stair climbing device which is formed by wheels and a vehicle body. The vehicle body is connected with the wheels. Under the action of manpower, the operation of climbing up and down stairs is realized. Each wheel consists of a rubber tire, an annular gear, a planet carrier, a gear shaft system and a roller shaft system, wherein the rubber tire is connected with the annular gear; the annular gear is connected with the gear shaft system; and the gear shaft system and the roller shaft system are connected with the planet carrier, so that the stable and non-impact operation that the inner planetary gear type stair climbing device continuously climbs up and down the stairs is realized. For the the inner planetary gear type stair climbing device disclosed by the invention, due to the adoption of an nner planetary gear transmission mechanism and a centreless shaft design, the automatic switching of traveling on the flat ground and climbing up and down the stairs is realized by the manpower, and the wheels are in real-time contact with the ground in the process of climbing up and down the stairs so that the rigid impact is eliminated. The inner planetary gear type stair climbing device disclosed by the invention has no requirement on the sizes of a tread and a kicking surface of a step, can be widely applied to a stair climbing machine, a stair climbing cart, a stair climbing wheelchair and a luggage, has simple structure and low cost and is universal for various steps. The invention provides an effective solution for transportation under various conditions of climbing up and down the stairs.

Description

technical field [0001] The invention relates to a stair climbing device, in particular an inner planetary gear type stair climbing device. Background technique [0002] Existing stair climbing devices include: outer planetary wheel type stair climbing device, leg type stair climbing device, crawler type stair climbing device, each of these types of mobile devices has its own advantages and disadvantages: [0003] The outer planetary wheel type stair climbing device is relatively common in the market, and its structure is simple and the cost is low. The climbing stability of the outer planetary wheel type stair climbing device is directly proportional to the number of planetary wheels, and the number of planetary wheels can be two, three, four or more. The stair-climbing device with two planetary wheels has the largest vibration at the center of the wheel, but with the increase in the number of planetary wheels, the radial size of the wheel doubles, and the height of the whe...

AI Technical Summary

Problems solved by technology

Due to the large frictional resistance during the operation of the track, the turning is inconvenient, resulting in low energy utilization efficiency

In addition, due to the limited front and rear angles of the crawler, it is necessary to install a front guide crawler and a rear guide crawler to buffer the sudden change of angle between the flat ground and the stair section of the stair climbing device. The structural complexity, cost and control difficulty of the device

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