Self-propelled work platform moving across medial strip barrier of motorway

Abstract

The invention discloses a self-propelled work platform moving across a medial strip barrier of a motorway, and the platform comprises a vehicle body, a barrier crossing moving device, a ground wheel lifting device, a power transmission device, and a machine and tool carrying device. The invention belongs to the field of motorway maintenance machinery. Compared with the prior art, the platform is advantageous in that (1), the medial strip barrier of the motorway serves as a running space for operating machines and tools, thereby effectively solving a problem that a conventional vehicle-mounted operating machine occupies a normal operating lane; (2) the platform employs the design of the barrier crossing moving device, clamps the medial strip barrier through an upper contour wheel and a lower contour wheel, enables the medial strip barrier to serve as an operating guide rail, achieves bidirectional cross moving through a drive contour wheel, and is stronger in capability of resistance to derailing of the whole machine; (3) the platform employs the design of the ground wheel lifting device, can enables the whole machine to achieve the ground moving of the lower contour wheel as occasion requires, and can be pulled to move under the condition of no fence.

Description

technical field [0001] The invention relates to a work platform that can be attached to and straddle the wave beam guardrail of an expressway, more particularly, refers to a self-propelled work platform that straddles the guardrail of the central divider of the expressway, and belongs to the field of expressway maintenance machinery. 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 effectively improved, but there are als...

AI Technical Summary

Problems solved by technology

[0004] The main problems of the above-mentioned mechanical device with the expressway divider guardrail as the running track are: (1) the above-mentioned models are all designed for the single wave beam guardrail of the expressway. There is no report on the design of two parallel wave beam guardrails on the central divider; (2) the above models rely 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 On the cross-section, the whole machine is placed obliquely on the inside of the guardrail. Due to the small contact area and the concentrated force, the whole machine is easy to derail; (3) The above-mentioned hook-and-loop design requires that its driving, walking and hooking mechanisms must be arranged obliquely Above the outer side of the guardrail, and the column on the outer side of the guardrail directly limits its installation space, which puts forward higher requirements for its miniaturization design; (4) The above-mentioned hook-and-loop design greatly limits the overall structure, load capacity, and operating speed and the amount of vibration, which indirectly limits the function and work efficiency of the whole machine

Images