Gear and rack type reciprocating impact device

Abstract

The invention relates to a gear and rack type reciprocating impact device which comprises a casing, a rack component and an incomplete gear, wherein the rack component is arranged inside the casing; and the incomplete gear is located inside the rack component. The technical scheme is as follows: the rack component comprises an oval circle structure and an impact sliding block; racks are arranged in the length directions of the inner wall of the circle structure respectively; flanges are arranged on the outer wall of the circle structure; sliding grooves matched with the flanges of the rack component are formed in the inner wall of the casing; an impact mechanism is limited at the end of the impact sliding block inside the casing; the gear teeth of the incomplete gear are meshed with the rack component; and the number of the gear teeth of the incomplete gear is smaller than half of the total number of the teeth. An impact effect is achieved by using free inertial motion after demeshing of the rack component and the incomplete gear is achieved; and at the same time, motion inversion of the rack component is achieved. Compared with a traditional crank slider type reciprocating impact device, the gear and rack type reciprocating impact device is simple and compact in structure, occupies small space and can effectively avoid unbalance of motion in the direction vertical to the slider motion direction at the same time.

Description

technical field [0001] The invention relates to the fields of operation and transportation, in particular to a mechanical equipment for crushing or pulverizing with reciprocating elements, in particular to a rack-and-pinion reciprocating impact device. Background technique [0002] The reciprocating impact device is widely used in the fields of rock drilling, wall drilling, blasting blast holes, ore crushing, concrete vibration and compaction, silo and chute shock anti-blocking, steel surface shock derusting, etc., such as rock drills, Impact drills, vibration impact hammers, vibrators and various hand-held impact appliances, etc. At present, there are mainly four types of reciprocating impact devices: pneumatic, hydraulic, internal combustion and electric. Among them, electric reciprocating impact devices have been widely used in recent years because they do not require secondary conversion of power, are easy to use, and have high energy utilization. [0003] At present, m...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a rack and pinion reciprocating impact device, which fundamentally solves the problems of large floor space, high maintenance cost and short service life of existing impact devices.

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