[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