A pneumatic impact vibrator

Abstract

The invention discloses a pneumatic impact type vibrator which comprises a shell, wherein a pressure block which is made of metal is arranged in the shell; in the shell, a pressure strengthening cavity which is close to the top part of the shell is formed in one side of the pressure block, and an impact cavity is formed in the other side of the pressure block; a pressure block gas passing hole which communicates with the pressure strengthening cavity is formed in the pressure block; a piston impact rod which can impact the bottom of the shell in a reciprocating manner is arranged in the impact cavity; an elastic piece used for resetting is installed at one end of the piston impact rod; a permanent magnetic meson which is matched with the pressure block is arranged at the other end of the piston impact rod; a ventilation channel is formed between the permanent magnetic meson and the piston impact rod and communicates with the pressure block gas passing hole; an impact rod gas passing hole used for communicating the impact cavity with the ventilation channel is also formed in the piston impact rod; a gas inlet which communicates with the pressure strengthening cavity and an exhaust hole which communicates with the impact cavity are also formed in the shell. The pneumatic impact type vibrator has the advantages of long service life, strong vibration effect, capability of realizing strong vibration by gas inlet without high pressure and the like.

Description

technical field [0001] The invention relates to the field of pipeline transportation, in particular to a pneumatic impact vibrator. Background technique [0002] In addition to being widely used in long-distance transportation of oil and natural gas, pipeline transportation can also transport ore, coal, building materials, chemicals, mud, ceramic slurry, point food fluids and grain, etc. Pipeline transportation has its obvious advantages, because Its transport capacity is large, continuous, rapid, economical, safe, reliable, stable, less investment, less land occupation, low cost, and can realize automatic control and be widely used. However, pipeline delivery has significant drawbacks due to clogging problems. Therefore, the problem of drag reduction in pipeline transportation is a major problem that plagues people, and it has been paid more and more attention by people. [0003] At present, pipeline transportation, especially pipeline transportation of materials, usually...

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned air impact hammer, the upper part of the piston impact rod is equipped with two O-rings and two wear-resistant rings, affected by the friction between the O-rings, wear-resistant rings and the inner wall of the cylinder, the reset of the piston impact rod is relatively slow , directly affects the number of impacts of the piston impact rod per unit time, resulting in low efficiency of the air impact hammer, and, under long-term friction between the O-ring and the wear-resistant ring, it is easy to wear

Once the gap between the O-ring, wear-resistant ring and the inner wall of the cylinder is greater than the pressure gap of the compressed air, the air impact hammer will lose its impact force and its service life is short. It is only suitable for places where there is no technical requirement

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