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A two-stage impact hydraulic breaker

A technology of hydraulic breaker and buffer spring, used in impact drilling, construction, drilling equipment and methods, etc., can solve problems such as limited effect, unsatisfactory impact process, and insufficient frequency, and improve crushing efficiency and effect. , to achieve the effect of secondary impact and improve service life

Active Publication Date: 2022-05-13
温州永安重工科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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

Method used

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  • A two-stage impact hydraulic breaker
  • A two-stage impact hydraulic breaker
  • A two-stage impact hydraulic breaker

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Embodiment Construction

[0020] Examples, see e.g. Figure 1 to Figure 3 As shown, a two-stage impact hydraulic breaker includes a middle shell 100 of the hydraulic breaker, a front shell 40, a hydraulic main drill rod 10 and a middle drill rod 20, and the front shell 40 is fixed on the bottom surface of the middle shell 100 Above, the middle part of the bottom plate of the front housing 40 is formed with a central through hole 41, the main drill rod 10 is inserted into the central through hole 41, the inner side wall of the front housing 40 is formed with internal threads, and the inner reinforcing sleeve The body 42 is screwed into the internal thread, the main drill rod 10 is inserted into the inner reinforcement sleeve 42, and the lower raised sleeve 43 of the inner reinforcement sleeve 42 is inserted into the middle through hole 41;

[0021] The middle part of the main drill rod 10 is formed with an axial vertical through hole 11, the middle drill rod 20 is inserted into the axial vertical throug...

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Abstract

The invention discloses a two-stage impact hydraulic breaker, which comprises a middle shell, a front shell, a hydraulic main drill rod and a middle drill rod of the hydraulic breaker, the front shell is fixed on the bottom surface of the middle shell, and the front The middle part of the bottom plate of the shell is formed with a central through-hole, the main drill rod is inserted into the central through-hole, the inner side wall of the front shell is formed with internal threads, and the inner reinforcing sleeve is screwed into the internal thread, and the main drill The rod is inserted into the inner reinforcing sleeve, and the lower raised sleeve of the inner reinforcing sleeve is inserted into the through hole in the middle. The invention can realize the continuous impact of the middle drill rod and the main drill rod when the piston rod of the hydraulic cylinder is impacted once, and realize the secondary impact, which greatly improves the crushing efficiency and effect, and the inner reinforcing sleeve provided in the front shell The body prevents the main drill rod from being in direct contact with the front shell, reducing wear and improving service life.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B1/26
CPCE21B1/00
Inventor 曾胜海
Owner 温州永安重工科技有限公司
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