380 V switch cabinet maintenance car

Abstract

The invention relates to a 380 V switch cabinet maintenance car. The 380 V switch cabinet maintenance car comprises a car body, universal wheels connected to the lower portion of the car body, a handle connected to the side of the vehicle body, a hydraulic supporting module arranged on the car body and an overhaul platform connected to the top of the hydraulic supporting module. Rising and falling of the overhaul platform are achieved under the control of the hydraulic supporting module. The 380 V switch cabinet maintenance car further comprises a height limiting device, the height limiting device is movably connected between the car body and the overhaul platform, and the height of the overhaul platform is controlled by controlling the height of the hydraulic supporting module. Compared with the prior art, the 380 V switch cabinet maintenance car can control the height of the overhaul platform conveniently, thereby being applied to maintenance of 380 V switch cabinets. Due to the fact that when the overhaul platform reaches the maximum height, the included angle between hinged frames for forming the hydraulic supporting module is controlled to be 90 degrees through the height limiting device, even distribution of stress of the hydraulic supporting module in the horizontal direction and stress of the hydraulic supporting module in the vertical direction is achieved, and the service life of the hydraulic supporting module is prolonged.

Description

technical field [0001] The invention relates to a maintenance device, in particular to a 380V switch cabinet maintenance vehicle. Background technique [0002] In the current infrastructure power grid project, the car-type switch on the top floor of the 380-volt GGD and other switch cabinets is relatively high from the ground, and the weight of the car-type switch is heavy. Operators are laborious when operating the car-type switch, and the action point is difficult to control. There are serious potential safety hazards. There have been dangerous phenomena in which the top-level switch slipped to the ground and hurt people during operation. Therefore, it is necessary to develop a maintenance trolley that is suitable for the operation of the top-level switch to avoid the occurrence of dangerous incidents and improve the work efficiency of operators. [0003] The Chinese patent with the application number 201110368868.3 discloses a hydraulic lifting maintenance vehicle. A hydr...

AI Technical Summary

Problems solved by technology

[0002] In the current infrastructure power grid project, the car-type switch on the top floor of the 380-volt GGD switchgear is relatively high from the ground, and the weight of the car-type switch is heavy. Operators work hard when operating the car-type switch, and the action point is difficult to control

There are serious safety hazards, and there have been dangerous phenomena in which the top-level switch slipped to the ground and hurt people during operation. Therefore, it is necessary to develop a maintenance trolley that is suitable for the operation of the top-level switch, so as to avoid the occurrence of dangerous incidents and improve the work efficiency of operators.

[0003] The Chinese patent with the application number 201110368868.3 discloses a hydraulic lifting maintenance vehicle. A hydraulic cylinder is vertically installed in the middle of the main frame. A sprocket shaft frame is arranged above the piston rod of the hydraulic cylinder. The sprocket is installed on the wheel shaft, the middle beam is installed in the middle of the main frame, the chain guide wheel is installed on the middle beam, the guide frame is installed on the pallet cross frame and the pallet lower cross frame, and two pairs of guide wheels are installed symmetrically on the guide frame. The wheel slides up and down in the guide groove on the main frame, and an adjusting screw is installed on the lower horizontal frame of the pallet. One end of the adjusting screw is provided with a handle, and the sprocket is connected to the lower horizontal frame of the pallet by a chain through the chain guide wheel. The structure of this kind of maintenance vehicle is relatively complicated, and the lifting position is not fixed, so there will still be problems when using it

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