Manhole cover planning-milling device

Abstract

The invention relates to a manhole cover planning-milling device, which consists of a rack and a mounting base that can move up and down along the rack and is used for mounting a hydraulic motor. A hydraulic motor is mounted at the lower part of the mounting base, the output shaft of the hydraulic motor is connected to a cutterhead assembly, at least two lifting cylinders are connected to the rack, and pistons of the lifting cylinders are hinged to two sides of the mounting base, a protection cover disposed outside the cutterhead assembly is connected to the rack, and the cutterhead assembly includes a cutterhead, a plurality of lower cutter heads and a plurality of upper cutter heads, the plurality of lower cutter heads are fixed at the lower part of the cutterhead, an upper tool apron is fixed at the middle-upper part of the cutterhead, the plurality of upper cutter heads are fixed on the upper tool apron, the diameter of the upper cutter heads is greater than that of the lower cutter heads, and a graduated scale disposed on the cutterhead or mounting base goes through the protection cover. The manhole cover planning-milling device provided by the invention has a simple structure, can improve the strength of the joint between a bearing guard plate and the pavement. During operation, the lifting position of the cutterhead can directly be observed by the graduation on the scale, and control of the planning-milling depth can be very flexible and convenient.

Description

technical field [0001] The invention relates to a manhole cover planing and milling device, which belongs to the technical field of road construction and maintenance machinery and equipment. Background technique [0002] With the continuous acceleration of the urbanization process in our country, the number of inspection wells on municipal roads and their underground pipeline laying engineering knives has increased, resulting in an increasing number of road manhole covers. Sinking and checking the sinking and tilting of well rings and manhole covers not only affect the beauty of the road, but also affect the safety of vehicles and pedestrians. For this reason, the better solution at present is to use the wellhead load-bearing guard plate structure to solve the problem of damage and fragmentation of the asphalt pavement around the manhole cover caused by the vibration of the road inspection well ring, manhole cover sinking and vehicle rolling, so as to improve the urban envir...

AI Technical Summary

Problems solved by technology

On the one hand, the filling material of this structure is only placed between the inner wall of the pit and the outer wall of the load-bearing guard plate, so that the deformation resistance of the material at the joint is limited, and on the other hand, it is not easy to improve its waterproof performance.

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