Straight arm double-rotation maintenance operation platform mechanism

Abstract

According to the straight-arm double-rotation overhaul operation platform mechanism. A first-stage rotation device is fixed to a base, the first-stage rotation device is connected with a second-stagerotation device through a variable-amplitude telescopic device, a working platform is fixed to the upper end of the second-stage rotation device, and a wire lifting and pulling device is arranged on the working platform; and the first-stage rotation device is provided with a variable-amplitude oil cylinder which is hinged to one end of the variable-amplitude telescopic device and used for adjusting the pitching action of the variable-amplitude telescopic device, and the other end of the variable-amplitude telescopic device is provided with a leveling oil cylinder which is hinged to the second-stage rotation device and used for adjusting the angle of the working platform. According to the straight-arm double-rotation overhaul operation platform mechanism, the 360-degree continuous rotary motion of the height-adjustable working platform is achieved, the overall action flexibility of the mechanism is high, the working conditions of contact networks, tunnels and sound barrier overhauling areas can be effectively and completely covered, the space of the working platform is increased, the bearing capacity is improved, and the number of contained operators and equipment is increased; overhauling operation is utilized, so that the requirement for vehicle fixed-point parking accuracy is low; and the action flexibility of the working platform is fully utilized, so that the position of the working platform is compensated and adjusted.

Description

technical field [0001] The invention belongs to the technical field of work platforms, and in particular relates to a straight-arm double-rotation maintenance work platform mechanism. Background technique [0002] my country's railway transportation has completely entered the era of electric locomotives, and the maintenance and overhaul of railway lines are extremely important. The existing three-platform operating device is an important operating platform for railway line maintenance and overhaul. The number of people working on the platform is limited, especially in tunnel maintenance conditions, where maintenance tools such as grouting machines and percussion drills are heavy, have a large impact force, heavy maintenance equipment, and many operators cannot be transported to the work station for maintenance; The working platform used under the condition of sound barrier needs to be able to adapt to the fully enclosed and semi-enclosed maintenance areas of single-line and do...

AI Technical Summary

Problems solved by technology

[0002] my country's railway transportation has completely entered the era of electric locomotives, and the maintenance and overhaul of railway lines are extremely important. The existing three-platform operating device is an important operating platform for railway line maintenance and overhaul. The number of people working on the platform is limited, especially in tunnel maintenance conditions, where maintenance tools such as grouting machines and percussion drills are heavy, have a large impact force, heavy maintenance equipment, and many operators cannot be transported to the work station for maintenance; The working platform used under the condition of sound barrier needs to be able to adapt to the fully enclosed and semi-enclosed maintenance areas of single-line and double-line, but there is no suitable maintenance work platform at present; Strong, poor versatility, the operation platform used for maintenance cannot take into account tunnel maintenance, and the operation platform used for tunnel maintenance cannot take into account the maintenance of sound barriers, and cannot be used for the maintenance of integrated tunnels, catenary and sound barriers at the same time. At the same time, maintenance During operation, there are high requirements for accurate positioning and parking of the vehicle, and it is necessary to stop at a fixed point to reach the work position, and the positioning requirements are high

[0003] The application number is 201910395215.0, and the document named "a multi-platform operating device" (hereinafter referred to as comparative document 1) discloses a method to solve the problems of existing multi-operating platform devices, such as low automation, low intelligence, and operational stability. Technical problems that cannot guarantee reliability and safety, including: main platform, left platform, and right platform. The main platform can be lifted vertically through the main lifting mechanism, the left platform can be lifted vertically through the left lifting mechanism, and the right platform can be lifted vertically through the right platform. The mechanism lifts vertically, and the left platform and the right platform move horizontally through the left translation mechanism and the right translation mechanism respectively connected with the left lifting mechanism and the right lifting mechanism. Comparative document 1 cannot adjust the angle, is highly specialized, and cannot perform maintenance on tunnels and sound barrier areas; the patent number is 201821524311.8, and the document named "Highly Integrated and Modularized Assembled Lifting and Rotating Work Platform" (hereinafter referred to as In comparative document 2), a telescopic rotary lifting platform for existing catenary maintenance vehicles is disclosed, which has single function, complex process, low material utilization rate and high cost, and can be quickly and accurately assembled with the whole vehicle, reducing The assembly site, wherein, reference document 2 discloses the following structure: the outer ring of the slewing bearing is provided with a slewing limit device and a brake assembly, and the brake assembly includes a brake hydraulic cylinder and a brake belt, and the lifting is realized through the hydraulic brake system Rotary braking of the column; the rotation limit device includes left limit, right limit, and middle position, which can ensure that the operating platform device can work safely in the left half area, right half area, and middle area. It can be seen from this that although The slewing bearing can drive the lifting column fixed on the slewing table to rotate through the slewing table. However, due to the setting of the slewing limit device and the brake assembly (such as figure 1 and 2 ), so that the left and right rotation angle of the lifting column is less than 180°, thus limiting the maintenance and repair range of the operation platform, and the operation platform in the comparison document 2 cannot be shifted as a whole, so that the operation platform cannot meet the inspection and maintenance of the tunnel and the sound barrier homework, therefore, in view of the above problems, it is necessary to improve

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