Self-propelled type work platform with corrugated beam barrier of highway as guide rail and obstacle crossing function

Abstract

The invention discloses a self-propelled type work platform with a corrugated beam barrier of a highway as a guide rail and an obstacle crossing function. The self-propelled type work platform comprises a barrier-hanging guide device, a planet obstacle crossing device, a bearing travelling device and a power drive device. The self-propelled type work platform belongs to the field of highway maintenance machinery. Compared with the prior art, the self-propelled type work platform has the advantages that (1) the shape and the structural features of the corrugated beam barrier of the highway and barrier vertical pillars are fully used, the complete machine is high in automation degree, practicability and maneuverability; (2) effective obstacle crossing for the barrier vertical pillars is achieved by adopting the design of the planet obstacle crossing device with the aid of the inertial heading and overturning functions of an obstacle crossing mandrel, a planet wheel frame and obstacle crossing wheels at the moment of meeting obstacles; (3) the whole machine is greatly improved on the aspects of anti-derailment property, travelling linearity, travelling stability, bearing capacity, running speed and other aspects by adopting the design of the barrier-hanging guide device and the bearing travelling device, so that the whole machine is suitable for serving as a universal type highway maintenance work platform.

Description

technical field [0001] The invention relates to a working platform that can be attached to the guardrail of the expressway wave beam, more particularly, refers to a self-propelled working platform that uses the guardrail of the expressway wave beam as the guide rail and has the function of surmounting obstacles, belonging to expressway maintenance machinery field. Background technique [0002] As of the end of 2014, the total mileage of expressways in my country has reached 112,000 kilometers, surpassing the United States to rank first in the world, and there is undoubtedly a huge demand for expressway maintenance machinery supporting it. At present, highway maintenance machines with a high degree of mechanization are mostly vehicle-mounted, including hedge trimmers, guardrail cleaning machines, road sweepers, and marking machines. The carrying capacity, operating efficiency, operating quality and personnel safety of the vehicle-mounted operating machinery have been effecti...

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Problems solved by technology

[0004]The main problems of the above-mentioned mechanical devices that use the highway divider guardrail as the running track are: (1) The above-mentioned models are deliberately avoiding the guardrail column to move the whole machine interference, and did not propose a positive solution, and the guardrail column, as an important component with high repeatability, is precisely an important bottleneck problem that the above-mentioned models should not avoid; (2) the above-mentioned models are the next best thing, only Relying on a pair of small driving pulleys or sheaves on the upper part to hook on the upper edge of the guardrail in a small area, the whole machine is obliquely placed on the inner side of the guardrail. Due to the small contact area and concentrated force, the whole machine is easy to derail. (3) The above-mentioned hook-and-loop design requires that its driving, walking and hooking mechanism must be arranged obliquely above the outer side of the guardrail, and the guardrail column directly limits its installation space, which poses a challenge to its miniaturization design. Higher requirements; (4) The above-mentioned hook-and-loop design greatly limits the structure, load capacity, running speed and vibration of the whole machine, which indirectly limits the function and work efficiency of the whole machine

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