Multi-support multi-roller track component and track

Abstract

The invention discloses a multi-support multi-roller track component and a track. The track component comprises a track plate, rolling wheels are installed on the track plate, the track plate comprises a plate body, supporting components are arranged on the plate body, track pins are arranged on the two sides of the plate body, the supporting components comprise two rolling wheel supports and a rolling wheel supporting base, wherein the two rolling wheel supports and the rolling wheel supporting base are coaxially and sequentially separated from one another; the two rolling wheels are installed on the supporting components through rolling wheel bolts, the head parts of the rolling wheel bolts are arranged on positioning grooves of the rolling wheel supporting base while the threaded ends of the rolling wheel bolts penetrate through holes of the two rolling wheel supports and then are screwed with locking nuts, the rolling wheels can be rotationally arranged on screw rods of the rollingwheel bolts in a penetrating mode, the rolling wheels form bias angles relative to the track pins, one rolling wheel is arranged between the two rolling wheel supports, and the other rolling wheel isarranged between the rolling wheel supports and the rolling wheel supporting base. The track component has the advantages that the structure is compact, the first time contact of the rolling wheels can be kept, the collision abrasion is small, the service life is long, the noise and vibration are reduced, the adaptability of various road surfaces is high, and the like.

Description

technical field [0001] The invention relates to a crawler structure, in particular to a multi-support and multi-roller track member suitable for a crawler-type omnidirectional mobile platform, a crawler-type high-efficiency steering platform, etc., and a crawler composed of a multi-support and multi-roller track member. Background technique [0002] Omnidirectional mobile platform, also known as omnidirectional mobile platform, refers to a mobile platform that can move along the X-axis and Y-axis on a two-dimensional plane, and can rotate around its own center, and can complete the above compound movements. According to the shape and structure of the walking mechanism, the omni-directional mobile platform can be divided into a wheel-type omni-directional mobile platform and a crawler-type omni-directional mobile platform. The walking mechanism of the wheeled all-round mobile platform mainly includes Mecanum wheel (moveable caster), Transwheel (express robot vehicle), Orthogo...

AI Technical Summary

Problems solved by technology

This structure has the following problems: 1) The rollers are arranged at both ends of the support. During the movement of the track shoes, before the rollers contact the ground or at the moment of contact, the roller bracket may collide with the ground (on non-strictly flat roads) Especially), it produces loud noise and strong vibration, which limits the omni-directional motion capability of the track and its platform, interferes with operation and control, increases the wear of the roller bracket and the wear of the entire track

2) The number of rollers is small (there are only 1-2 rollers on each track plate), which leads to the fact that each roller bears a large pressure, a high degree of compression, and a large degree of deformation during the track movement (roller grounding). At this time, the rollers It is no longer a regular cylindrical shape

This wear becomes extremely serious in the case of heavy loads on the platform, or after lightweight design of the track shoes

5) The top of the roller does not exceed the center line of the track pin, which may cause the adjacent track shoes to lift during the grounding movement of the roller, causing the upper surface of the track ground section to become uneven, and the road wheels moving on it will be Generate interference (the interference is more serious when the diameter of the road wheel is not much larger than the pitch of the track shoe), which in turn causes noise and vibration of the car body

In addition to the problems described in 2)-5) above, this document also has the following problems: the two rollers are respectively placed on both sides of the roller bracket, thus avoiding the problems described in 1) above, but it brings another problem at the same time. The problem is that the roller shaft is supported from both ends to the middle support, so the roller shaft becomes a two-section cantilever beam, which greatly reduces the strength of the roller shaft, that is, the middle support of the roller causes the roller pin shaft to become a cantilever beam

Although in actual motion, the "point landing" state is often deformed into a surface near the point due to the action of pressure, but this "face landing" that cannot control the shape will destroy the accuracy of the position positioning of the platform in all-round motion , thus affecting the overall working status and efficiency of the platform

At the same time, because the "face-to-ground" landing area is very small, it can still be regarded as "point-to-ground" relative to the platform as a whole, which will cause large vibration and noise during the movement of the track and its platform, and serious wear of the rollers. Poor ground adaptability, poor reliability and practicability

Images