JPS6229428Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an air hammer shocker used for blowing off powder and granule debris from silos, hoppers, etc., and its purpose is to have a simple structure and a mechanically It is reasonable, small and lightweight, has outstanding effectiveness, does not require continuity compared to conventional equipment, and does not cause damage or deformation to the hopper, etc., regardless of where it is installed. The purpose of the company is to provide a new air hammer shocker.

The configuration of this invention will be explained below with reference to the drawings shown as examples.

First, as shown in Figures 1, 2, and 3,
This air hammer shocker 1 has a cylindrical case 2.
The upper opening of the cap is closed with a cap 3, and a mounting plate 4 is attached to the lower opening and penetrates through the center thereof. A piston 5 is disposed inside the case 2, and the piston 5 has a disc-shaped sliding portion 6 at an appropriate position, and a seal is formed in an annular groove 7 formed on the entire side circumference of the sliding portion 6. An O-ring 8 is provided for this purpose. Further, within this case 2, a spring 9 is provided between the cap 3 and the sliding portion 6 along the inner wall of the case 2, and presses the piston 5 downward. Further, the piston 5 passes through a through hole 10 of the mounting plate 4, and an O ring 1 for sealing is provided on the contact surface of the through hole 10 with the piston 5.
1 is installed. Next, in case 2,
As shown in FIG. 2, an opening 12 for air supply and exhaust is formed slightly above the mounting plate 4, and a pipe 14 connected to an instantaneous exhaust valve 13 is connected to this opening 12. . This instantaneous exhaust valve 13 is designed to stop the supply of compressed air and simultaneously remove the compressed air.

The air hammer shocker 1 is mounted on the hopper 15 by fixing the mounting plate 4 to the mounting seat 16 provided on the outer wall of the hopper 15, and the lower end of the lowered piston 5 is attached to the bottom 17 of the mounting seat 16. It's starting to hit.

Next, the operating state of this device constructed as described above will be explained.

First, when compressed air is sent into the case 2 from the pipe 14 by a compressor (not shown), the third
As shown in the figure, the piston 5 is raised against the pressing force of the spring 9, and then, at the same time as the supply of compressed air is stopped, compressed air is extracted from the case 2 by the action of the instantaneous exhaust valve 13. The piston 5 is pressed downward by the spring 9, and the second
As shown in the figure, its lower end hits the bottom 17 of the mounting seat 16, giving an impact to the hopper 15.

In the structure of this invention, compressed air is supplied in a direction that compresses the spring 9 through the piston 5, so there is no need to provide a spring for returning the piston 5.

Therefore, not only is the structure simple, but there is nothing that impedes the elastic force of the spring 9, so the compressed air supply/exhaust cycle and the pressure level can be faithfully transmitted to the piston 5.

Therefore, high vibration frequency and large impact force can be obtained. Further, for example, if the pressure of the compressed air is increased by a certain amount, the impact force can be increased by a certain amount, making it easier to control the impact force. The same applies to the control of the frequency of impact, and overall, various types of impact can be easily performed, from low frequency, small impact force to high frequency, large impact force.

Note that the inside of the case 2 has a sealed structure also at the upper part of the sliding part 6, and therefore, as the piston 5 rises, the air above the sliding part 6 is compressed.
This compressed air is supposed to move the piston 5 down together with the spring 9.

As mentioned above, this invention has a simple structure, no mechanical stress, high frequency and large impact force, and can easily perform various types of impact, from low frequency and small impact force to high frequency and large impact force. It is easy to control, small and lightweight, has outstanding effects, and does not require continuity compared to conventional equipment, regardless of where it is installed.
This provides an excellent air hammer shocker that does not cause damage or deformation to the hopper, etc., and has excellent practical effects.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the left half of this invention in longitudinal section. FIG. 2 is an explanatory diagram showing the operating state of this invention. FIG. 3 is an explanatory diagram showing the operating state of this invention. FIG. 4 is an explanatory diagram showing how this invention is attached to a hopper. 2... Case, 5... Piston, 6... Sliding part, 9... Spring, 12... Opening, 14...
…pipe.

Claims (1)

[Scope of utility model registration request] A piston 5 having a sliding part 6 is disposed inside a cylindrical case 2 so that the lower part of the piston 5 can protrude from the case 2, and a spring 9 is placed above the sliding part 6 inside the case 2. The air hammer gun is characterized in that an opening 12 is formed in the lower part of the case 2, and a pipe 14 for supplying and exhausting air is connected to this opening. Tukah.