Secondary impact hydraulic breaking hammer

A technology of hydraulic breaker and buffer spring, used in impact drilling, construction, drilling equipment and methods, etc., can solve the problems of limited effect, insufficient frequency, and unsatisfactory impact process, so as to improve the crushing efficiency and effect. , Improve the service life and achieve the effect of secondary impact
CN111456618AActive Publication Date: 2020-07-28温州永安重工科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
温州永安重工科技有限公司
Publication Date
2020-07-28

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Abstract

The invention discloses a secondary impact hydraulic breaking hammer. The secondary impact hydraulic breaking hammer comprises a middle shell, a front shell, a hydraulic main drill rod and a middle drill rod of the hydraulic breaking hammer; the front shell is fixed on the bottom surface of the middle shell; a central through hole is formed in the middle part of a bottom plate of the front shell;the main drill rod is inserted in the central through hole; an internal thread is molded on the internal side wall of the front shell; an internal reinforced sleeve body is screwed in the internal thread; the main drill rod is inserted in the internal reinforced sleeve body; and a lower raised sleeve body of the internal reinforced sleeve body is inserted into a middle through hole. According to the secondary impact hydraulic breaking hammer, continuous impact of the middle drill rod and the main drill rod can be realized during single impact of a piston rod of a hydraulic cylinder so as to realize secondary impact so that the breaking efficiency is greatly enhanced and the breaking effect is greatly improved; and moreover, due to the internal reinforced sleeve body arranged in the front shell, the main drill rod is not in direct contact with the front shell so that the wear is reduced and the service life is prolonged.
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Description

technical field

[0001] The invention relates to the technical field of drilling equipment, in particular to a two-stage impact hydraulic breaker. Background technique

[0002] In the existing hydraulic breaker, the drill rod is generally a single rod body, which is stretched back and forth through the piston rod of the hydraulic cylinder in the hydraulic breaker to hit the single rod body, so as to realize the continuous impact of the single rod body for crushing, and the drill rod is a sleeve In the front shell, there is no strengthened wear-resistant mechanism between it and the front shell, which will easily cause friction and wear between the two, which will affect the service life. At the same time, a single rod body only has one impact process in each impact, and its frequency However, and the effect is limited, the impact process is not ideal. Contents of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art an...

Claims

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