System for preventing idle blow and adjusting hitting power of breaker

Abstract

The present invention relates to a system for preventing an idle blow and adjusting hitting power of a breaker, which can set an idle blow-preventive direction converting unit by rotating the direction converting unit in a desired direction and adjust the hitting power of the breaker that is provided on the outer side of a cylinder of a hydraulic breaker which is a hydraulic hitting apparatus. Thus, the invention is capable of smoothly carrying out strong and weak hitting operations and disabling an idle blow of a hitting rod that is operated by a piston and the cylinder of the breaker through a hitting adjustment valve connected with the direction converting unit.

Description

technical field [0001] The present invention relates to a system for adjusting the striking force and preventing air strike of a crusher by adjusting the striking force and preventing air strike of the crusher installed outside the cylinder of a hydraulic breaker (breaker), which is a hydraulic impact machine. The action set by rotating the direction changing part according to the desired direction is smoothly performed by the striking force adjustment and the blowing adjustment valve connected to the direction changing part for the prevention of empty hitting, and the striking rod activated by the cylinder and piston of the crusher is smoothly executed. Prohibition of air strikes, strong beating, and weak beating actions, especially related to an impact force adjustment and air beating prevention system of a crusher as follows: by changing the direction of the impact force adjustment and air beating prevention installed outside the cylinder of the crusher The action of turnin...

AI Technical Summary

Problems solved by technology

[0004] However, with respect to the above-mentioned crushers with a breakaway prevention structure, since the upper and lower cavitation prevention bosses are additionally set inside the cylinder and the selection is made by sensing the pressure change of the above-mentioned cavitation prevention bosses. The opening and closing of the first sensor and the second sensor for the opening and closing action causes the structure to become complicated, and based on the characteristics of the crusher subjected to huge impact force and vibration, there are the above-mentioned empty strike prevention bosses, the first sensor, and the second sensor. Problems that are easily damaged such as the second sensor

[0005] And, as far as the hydraulic breaker is concerned, it is difficult to adjust the striking force through the striking rod, and the activation of the above striking rod is always in a constant state

Recently, as Korean Laid-Open Patent Publication No. 2009-0041823, by setting an automatic regulating valve on the internal control valve of the cylinder of the crusher, the impact force of the crusher can be automatically adjusted through the above-mentioned automatic regulating valve, but there are also Many problems, for example, when striking soft rocks and cement that do not require a large impact force such as bedrock with a strike rod, strong strikes frequently occur, and are caused by the large impact force and vibration generated when striking with a crusher The above-mentioned automatic regulating valve is easily damaged, etc.

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