Operation platform climbing to central separation barrier of expressway

Abstract

The invention discloses an operation platform climbing to a central separation barrier of an expressway, and belongs to the field of maintenance machines for the expressway. The operation platform comprises a vehicle body, a climbing barrier running device, a lower wheel lifting device, a power transmission device and a machine tool carrying device. Compared with the prior art, the operation platform has the beneficial effects that the central separation barrier of the expressway is effectively used as running space of an operation machine tool, so that the problem that a traditional vehicle-mounted operation machine occupies a normal traveling lane is solved; the design of the climbing barrier running device is adopted, the central separation barrier is clamped by an upper contour wheel and a lower contour wheel, and dual-way climbing is achieved with the upper contour wheel and the lower contour wheel as running guide rails, so that the good guiding performance is guaranteed, the contact area is effectively increased, interference of stand columns of the barrier is avoided, and the derailing-prevention capacity of the overall operation platform is greatly strengthened; and the design of the lower wheel lifting device is adopted so that lower contour wheel touchdown running of the overall operation platform can be achieved in necessity, and external force dragging running under the condition that the barrier does not exist can be further achieved.

Description

technical field [0001] The invention relates to a working platform that can be attached to and climb on the wave beam guardrail of the expressway, more particularly, refers to the working platform that climbs on the guardrail of the middle 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 also probl...

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