Chiseling machine for road and bridge construction

Abstract

The invention provides a chiseling machine for road and bridge construction, belongs to the technical field of mechanical devices, and aims to solve the problems that an existing handheld chiseling machine is large in vibration, labor-consuming and poor in chiseling effect during operation. The machine comprises a handle and a machine head, and is characterized in that the machine head comprises a shell, a motor, a gear and a plurality of scabbling units; the motor is fixed on the shell; the gear and the scabbling unit are movably arranged in the shell; the gear is in transmission connection with the motor; and each scabbling unit comprises a rotating shaft, a gear sleeve, a lifting rod, a twisted rod, a driving gear ring, a driven gear ring, a spring and a rotor; by means of the design, the vibration impact type scabbling of the cement pavement can be achieved, the vibration feeling during operation is small, and the hand numbness feeling cannot be generated after long-time operation; the chiseling machine does not need to be pressed on the cement surface forcefully, the chiseling of the cement surface can be realized by pressing down through the dead weight of the chiseling machine, and the physical strength of a user is saved; and a drilled hole can be rotationally crushed, so that the drilled cement hole is irregular in shape, and the chiseling effect is improved.

Description

technical field [0001] The invention relates to the technical field of mechanical devices, in particular to a chisel machine for road and bridge construction. Background technique [0002] At present, during road and bridge construction, it is often necessary to use a chisel machine to chisel the concrete surface to increase the material adhesion on the concrete surface. Existing hand-held chisel machines usually chisel the surface of concrete through the rotation of the chisel head or the overall reciprocating movement; the rotary hand-held chisel requires a certain force from the user's wrist during use. If the chisel head is controlled by force, it is easy to cause the chisel head to be stuck on the concrete surface, and the user's wrist will be twisted when the chisel machine handle is turned; the overall reciprocating chisel head requires the user to press the chisel head hard on the concrete surface during use To offset the impact force generated when chiseling, the u...

AI Technical Summary

Problems solved by technology

Existing hand-held chisel machines usually chisel the surface of concrete through the rotation of the chisel head or the overall reciprocating movement; the rotary hand-held chisel requires a certain force from the user's wrist during use. If the chisel head is controlled by force, it is easy to cause the chisel head to be stuck on the concrete surface, and the user's wrist will be twisted when the chisel machine handle is turned; the overall reciprocating chisel head requires the user to press the chisel head hard on the concrete surface during use To offset the impact force generated when chiseling, the user's jaw will be unbearably painful when the operation time is long

[0003] Publication number CN206245745U discloses a hand-held concrete chisel machine, comprising a host, a drill rod and a chisel head, one end of the drill pipe is connected to the main machine, and the other end is connected to the chisel head, and the chisel head is a litchi surface alloy tooth chisel head, The main engine includes a casing, a cylinder, a mobile drive motor and a cylinder rotation drive mechanism. The cylinder includes a cylinder housing, a connecting rod, a rear driving piston, a front driving piston, a return spring, an impact hammer and a drill sleeve. The drill sleeve is arranged in the cylinder housing. On the front side, the front end of the drill sleeve is connected with the drill pipe, the rear end is provided with a percussion hammer, and the front drive piston is provided with a return spring. The return spring and the front drive piston are arranged in the cylinder housing at the rear of the drill sleeve. There is a through hole on the cylinder shell of the cylinder, and a rear driving piston is arranged at the rear end of the cylinder shell, and the rear driving piston is connected with the mobile driving motor through a connecting rod; when the device is in use, the chisel head rotates on the concrete surface, which is easy There is a problem of spraining the user's arm; at the same time, the chisel head reciprocates up and down on the concrete surface. When it hits the concrete, the vibration is strong, which easily makes the user's hand numb, so it is not suitable for long-term work.

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