A torque limiter for construction electric drill equipment based on slider

Abstract

The invention belongs to the technical field of torque limiters, and particularly relates to a torque limiter based on slide blocks and used for building electric drill equipment. The torque limiter comprises an input shaft, a drive shell, an output shaft, drive blades and steel balls. When an electric drill designed by the invention is used by people, the input shaft rotates and drives a drive circular ring to rotate; the drive circular ring rotates to drive the drive shell to rotate through four limit trigger blocks; the drive shell drives the output shaft to rotate; and then the electric drill can be normally used. When a drill bit on the electric drill reaches a high rotating speed during use of the electric drill, the torque on the drill bit needs to be smaller so as to prevent fracturing of the drill bit under the circumstance, that is, the torque on the output shaft of the torque limiter needs to be regulated to be smaller; when the rotating speed of the input shaft of the torque limiter designed by the invention reaches a certain limit, the drive circular ring is disengaged from the drive shell; the drive shell rotates under the effect of friction between the steel balls between the drive shell and a transmission shaft; and the torque of the output shaft can be reduced by regulating the steel balls.

Description

Technical field [0001] The invention belongs to the technical field of torque limiters, in particular to a torque limiter based on a slide block used in construction electric drilling equipment. Background technique [0002] The currently used torque limiter driven by steel balls is continuously increasing with the speed of the input shaft on the torque limiter during use, so that the torque of the output shaft on the torque limiter is also increasing; so that during the use of the torque limiter If the load torque of the output shaft is large at high speed, it may damage the output shaft on the torque limiter; affect the normal use of the torque limiter; so there is a design that can make the output shaft have a lower torque at high speed A torque limiter is very necessary. [0003] The present invention designs a slider-based torque limiter for construction electric drilling equipment to solve the above problems. Contents of the invention [0004] In order to solve the...

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Problems solved by technology

[0002] The currently used torque limiter driven by steel balls is continuously increasing with the speed of the input shaft on the torque limiter during use, so that the torque of the output shaft on the torque limiter is also increasing; so that during the use of the torque limiter If the load torque of the output shaft is large at high speed, it may damage the output shaft on the torque limiter; affect the normal use of the torque limiter; so there is a design that can make the output shaft have a lower torque at high speed Torque limiter is very necessary

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