Drill rod bumper structure and hydraulic breaking hammer

By setting a buffer structure on the drill rod that contacts the piston rod with a buffer component, the problem of high wear on the drill rod due to impact force is solved, the service life of the drill rod is extended, and construction efficiency is improved.

CN122383035APending Publication Date: 2026-07-14NENGCHENG GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NENGCHENG GRP
Filing Date
2026-04-21
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The chisel of a hydraulic breaker suffers significant wear due to the impact force of the piston and the reaction force of the material being broken, which affects construction efficiency.

Method used

An mounting part and a buffer assembly are provided on the drill rod. The buffer assembly has an impact-receiving part that contacts the piston rod. The buffer assembly is installed between the drill rod and the piston rod. The buffer assembly includes a buffer element and an impact-receiving part. The impact-receiving part protrudes from the cavity to contact the piston rod. The buffer element is made of an elastic material to buffer the impact force.

Benefits of technology

This reduces the wear and tear on the chisel, extends its service life, reduces the need for frequent replacements, and improves the construction efficiency of the hydraulic breaker.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of hydraulic breaking hammer, disclose the drill rod buffer structure and hydraulic breaking hammer, including installation part and buffer assembly, installation part is set up on the end surface of the drill rod that is struck by the piston rod, the buffer assembly is provided with the installation part, the buffer assembly has the hit part, the hit part is suitable for contacting with the piston rod of breaking hammer, the present application can avoid the piston rod directly contacting with the drill rod through the buffer assembly, which is beneficial to reduce the loss of the piston rod to the drill rod, and can improve the service life of the drill rod, at the same time, due to the reduction of the loss of the drill rod, the drill rod does not need to be replaced frequently periodically, which is beneficial to improve the construction efficiency of the breaking hammer.
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