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A spraying device for a liquid-solid pre-mixing chamber

An injection device and pre-mixing technology, which is applied in the direction of abrasive feeding device, metal processing equipment, manufacturing tools, etc., can solve the problems of shutdown replacement, inability to accurately achieve mixing ratio control, and affecting the normal use of jet equipment, so as to avoid machine glitch effect

Active Publication Date: 2021-02-26
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the on-off control of water and the on-off control of pellets in the pre-mixing water jet system are separated from each other, resulting in the inability to accurately realize the mixing ratio control between water pellets, resulting in uneven distribution of pellets on the jet section, affecting surface modification effect; in addition, the liquid mixed with water and pellets must be transported to the nozzle through the pipeline to form a jet. Under the erosion of the mixed liquid, the inner wall of the pipeline will wear out rapidly and need to be stopped for replacement, which will affect the normal use of the jet equipment; Therefore, it is necessary to design a new type of injection device to achieve the precise control of water pellet mixing and the integration of jet formation

Method used

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  • A spraying device for a liquid-solid pre-mixing chamber

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Embodiment 1

[0024] Such as figure 1 Shown, a kind of injection device of liquid-solid front mixing chamber, it comprises cylinder body 7, upper cover 14 and lower cover 4, and the center of described cylinder body 7 is provided with mixing chamber 10, and described upper cover 14 upper surface The center of the upper cover 14 is provided with a threaded connection hole A17, and the lower part of the upper cover 14 is connected with an upper cover chamber 18, and the position near the bottom end of the upper cover chamber 18 is provided with a valve core guide sleeve 16, so The spool 22 of T-shaped structure is slidingly arranged in the spool guide sleeve 16 described above, and the top of the spool 22 in the upper cover chamber 18 is provided with an adjusting plate 19, and the top end of the spool 22 is in contact with the upper cover. The side walls of the cavity 18 are sealed and slidingly connected. An air chamber 21 is arranged on the outside of the valve core 22 between the top of t...

Embodiment 2

[0032] Such as figure 1Shown, a kind of injection device of liquid-solid front mixing chamber, it comprises cylinder body 7, upper cover 14 and lower cover 4, and the center of described cylinder body 7 is provided with mixing chamber 10, and described upper cover 14 upper surface The center of the upper cover 14 is provided with a threaded connection hole A17, and the lower part of the upper cover 14 is connected with an upper cover chamber 18, and the position near the bottom end of the upper cover chamber 18 is provided with a valve core guide sleeve 16, so The spool 22 of T-shaped structure is slidingly arranged in the spool guide sleeve 16 described above, and the top of the spool 22 in the upper cover chamber 18 is provided with an adjusting plate 19, and the top end of the spool 22 is in contact with the upper cover. The side walls of the cavity 18 are sealed and slidingly connected. An air chamber 21 is arranged on the outside of the valve core 22 between the top of th...

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Abstract

The invention relates to an injection device for a liquid-solid front mixing chamber, which comprises a cylinder body, an upper cover and a lower cover, a mixing chamber is arranged in the center of the cylinder body, a threaded connection hole A is arranged in the center of the upper surface of the upper cover, and a The bottom of the threaded connection hole A is connected with an upper cover cavity, and a valve core guide sleeve is arranged in the upper cover cavity near the bottom end, and a valve core with a T-shaped structure is installed sliding in the valve core guide sleeve, and the upper cover is placed on the upper cover cavity. There is a channel A on one side, a threaded connection hole B is connected above the channel A on the upper cover, a threaded connection hole C is provided on the side wall of the cylinder body, the inner end of the threaded connection hole C is connected with a channel B, and the center of the lower cover A channel C is provided, the top of the channel C is connected with a wear-resistant seat, the side wall of the lower cover is provided with a threaded connection hole D, the inner end of the threaded connection hole D communicates with the side wall of the channel C through the connection hole B, and the lower cover The end of the upper channel C is connected with a nozzle; the present invention can realize the precise control of water shot mixing and the integration of jet flow formation.

Description

technical field [0001] The invention relates to the technical field of material surface layer modification, and specifically relates to a spraying device for a liquid-solid pre-mixing chamber. Background technique [0002] During the mechanical service period, the fatigue life of key parts directly affects the service life of the machine, and fatigue failure is the main form of failure of key parts. Commonly used methods to improve the fatigue life of key parts mainly include shot peening, extrusion, rolling, Surface modification methods such as jet strengthening, as a result, introduce residual compressive stress on the surface of parts, change the microstructure layer, and hardness layer, thereby improving fatigue life. [0003] Jet strengthening includes pure water jet strengthening and abrasive jet strengthening; abrasive jet strengthening includes post-mixed abrasive jet strengthening and pre-mixed abrasive jet strengthening. Compared with pure water jet strengthening a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24C7/00
CPCB24C7/0023
Inventor 马泳涛刘兰荣翟林邦朱泽华李大磊牛鹏辉
Owner ZHENGZHOU UNIV