JPH07110475B2 - Method and apparatus for collecting dust in pneumatic equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to a drilling machine, a rock drill, etc.
The present invention relates to a dust collecting method and device for a pneumatic device that collects dust by using exhaust gas from a pneumatic device that generates dust during operation.

[0002]

2. Description of the Related Art When using pneumatic equipment such as a drilling machine and a rock drill that generate dust during operation, prevent dust from scattering by inhaling dust so as not to adversely affect the human body. Means are being taken. As a conventional method for collecting dust, for example, a method of driving a blower with a prime mover such as a motor to suck dust like a so-called vacuum cleaner is generally used.

[0003]

The above-mentioned conventional method has the following problems. (A) Since the conventional dust collector has a dedicated prime mover and blower, it requires fuel and electricity separately from the pneumatic equipment, which is uneconomical. Also, since the device becomes large-scale,
If the work area is small, it is difficult to install and it is inconvenient to transport and store. (B) On the other hand, in pneumatic equipment, the lubricating oil that is pumped in order to lubricate the drive part such as the piston and the water droplets that are generated in the compressed air that is the drive source are scattered from the exhaust part, and And the surroundings get dirty.

[0004]

Means for Solving the Problems The means of the present invention taken to solve the above problems are as follows. According to a first aspect of the present invention, there is provided a dust collection method for collecting dust generated by the use of pneumatic equipment, which exhausts the exhaust air of the pneumatic equipment through an exhaust pipe and draws the exhaust flow from the suction port. Introduced through a nozzle into the tube opening of the dust collecting tube opened inside the tool, making the inside of the dust collecting tube a negative pressure to draw air into the dust collecting tube from the gap between the tube opening and the nozzle, and the air pressure This is a dust collecting method for a pneumatic device, in which dust generated in the suction port device by use of the device is collected together with exhaust gas.

According to a second aspect of the present invention, there is provided a dust collector that collects dust generated by the use of pneumatic equipment, the dust collector having one end connectable to an exhaust port of the pneumatic equipment and the other end. An exhaust pipe provided with a nozzle on the side, a suction port member arranged in the dust generating part of the pneumatic equipment, and one end side of which is connected to this suction port device, and a pipe port is opened in the suction port device. A dust collector and a dust collector to which the other end of the dust collector is connected, wherein the tip of the nozzle of the exhaust pipe is inserted into the pipe mouth of the dust collector or is provided at the pipe mouth. The exhaust gas is discharged into the dust collecting pipe, and a gap for sucking air is provided between the nozzle and the pipe opening.
It is a dust collector for pneumatic equipment.

Pneumatic devices generate dust during use and are, for example, rock drills, punches and the like. It is desirable that the suction port has a structure that is less susceptible to vibrations of pneumatic equipment such as a punching machine, for example, a structure in which a punching rod is insertable and sticks to a punching portion, but is not limited to this. The dust collector separates dust sent together with the exhaust gas and discharges only the exhaust gas to the outside, and its structure is not particularly limited.

[0007]

[Operation] When the dust collector is set in the pneumatic equipment and the pneumatic equipment is operated, the nozzle at the tip of the exhaust pipe is inserted or installed in the mouth of the dust collecting pipe, and the dust is discharged from the exhaust port. The exhaust gas is introduced from the nozzle into the dust collecting pipe and flows at high speed in the dust collecting pipe. As a result, the air in the dust collecting pipe is sent together with the exhaust gas, so the pressure inside the dust collecting pipe decreases and becomes a negative pressure, and due to this pressure difference, dust is sucked from the intake port tool and sent to the dust collector together with the exhaust gas through the dust collecting pipe. To be

[0008]

The present invention will be described in more detail based on the embodiments shown in the drawings. FIG. 1 is an explanatory view showing a state in which an embodiment of a dust collector according to the present invention is attached to a pneumatic device, FIG. 2 is a perspective view showing the structure of a suction mouthpiece portion, and FIG. 3 is a structure of the suction mouthpiece portion. FIG. Reference numeral A is a dust collecting device, which is provided with an exhaust pipe 1, a dust collecting pipe 2, a suction port 3 and a dust collector 4. At one end of the exhaust pipe 1, a connecting tool 10 that is detachably attached to the exhaust port 50 of the rock drill 5 is attached. The other end of the exhaust pipe 1 is connected to the suction port device 3. The rock drill 5 is operated by compressed air sent from the air compressor 7 through the air pipe 6.

The suction port device 3 has a flat cylindrical shape whose upper part is closed except for a part thereof, and is provided with a stabilizing plate 34 bent downward. An insertion hole 35 for inserting the dust collecting tube 2 is formed in the stabilizing plate 34. Upper plate 30 of suction mouthpiece 3
An insertion hole 31 through which the rod 51 of the rock drill 5 can be inserted without contact is formed in the central portion of the.

A suction pipe 33 is provided so as to penetrate through the side wall 36 of the suction port device 3, and the dust collection pipe 2 is connected to the suction pipe 33. The nozzle N penetrates and is attached to the upper plate 30 of the suction port tool 3, and the exhaust pipe 1 is attached to the protruding portion N1 of the nozzle N.
Are connected. Further, the nozzle N is bent in an L shape at an intermediate portion, and the tip portion N2 is introduced into the suction pipe 33. The outer diameter of the nozzle N is set to be smaller than the inner diameter of the suction pipe 33, and a gap S is formed between them.

A dust collector 4 is connected to the other end of the dust collecting tube 2. The dust collector 4 has a filter 41 inside, and has a structure that separates dust sent together with the exhaust gas and discharges only the exhaust gas to the outside. Further, by opening the take-out lid 40, the dust accumulated inside can be taken out and the filter 41 can be cleaned.

The operation of this embodiment will be described with reference to FIGS. As shown in FIG. 1, the rock drill 5 is equipped with a dust collector A.
Install. That is, the connection tool 10 of the exhaust pipe 1 is connected to the exhaust port 50, and the rod 51 is inserted into the insertion hole 31 of the suction port tool 3. At the time of use, as shown in FIG. 3, the suction port device 3 covers the rock cutting portion, that is, the dust generating portion, and the rock R
It is placed in. When the stabilizing plate 34 of the suction port device 3 is pressed down with a foot to be stabilized and the rock drill 5 is operated by compressed air, the exhaust gas discharged from the exhaust port 50 is introduced into the exhaust pipe 1. At this time, the lubricating oil, water droplets, and the like are also introduced into the exhaust pipe 1 at the same time, so that the surroundings are not polluted.

The exhaust flow passes from the exhaust pipe 1 through the nozzle N,
It is introduced into the dust collecting pipe 2 and flows through the dust collecting pipe 2 at high speed. As a result, the air in the dust collecting pipe 2 is sent together with the exhaust gas, so that the pressure in the dust collecting pipe 2 is reduced to a negative pressure, and the dust inside the intake port 3 is sucked by the pressure difference, and the dust collecting pipe 2 It is sent to the dust collector 4 together with the exhaust gas. The present invention is not limited to the illustrated embodiments, and various modifications can be made within the scope of the claims.

[0014]

The present invention having the above-mentioned structure has the following effects. That is, if the dust collector is set in a pneumatic device and a pneumatic device such as a rock drill is operated, the exhaust gas discharged from the exhaust port is introduced from the nozzle into the dust collecting pipe, and the inside of the dust collecting pipe is operated at high speed. Flowing. As a result, the air in the dust collecting pipe is sent together with the exhaust gas, the internal pressure of the dust collecting pipe decreases and becomes a negative pressure, and the dust is sucked from the intake port device due to this pressure difference, and is sent to the dust collector together with the exhaust gas by the dust collecting pipe. . In addition, since the lubricating oil and water droplets that have conventionally been scattered from the exhaust port together with the exhaust gas are also introduced into the exhaust pipe and processed, the surrounding area is not polluted. In this way, dust can be collected by using the exhaust air of the pneumatic equipment that has been conventionally discarded, so it is economical because there is no separate maintenance cost for fuel, electricity, etc. for dust collection. . In addition, since it does not require a dedicated blower or a prime mover, it is not bulky, and it is convenient for transportation and storage without having to worry about the installation location even in a narrow construction site.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a state in which an embodiment of a dust collector according to the present invention is attached to a pneumatic device.

FIG. 2 is a perspective view showing the structure of a suction mouthpiece portion.

FIG. 3 is a cross-sectional view showing the structure of a suction mouthpiece portion.

[Explanation of symbols]

 A Dust collector 1 Exhaust pipe 2 Dust collection pipe 3 Suction port 4 Dust collector N Nozzle S Gap

Claims (2)

[Claims] 1. A dust collection method for collecting dust generated by the use of pneumatic equipment, the method comprising discharging exhaust air of the pneumatic equipment through an exhaust pipe (1) and sucking the exhaust flow thereof. (3) The dust collecting pipe (2) is introduced through a nozzle (N) into the pipe opening of the dust collecting pipe (2) opened inside.
The inside of the suction port device (3) is drawn into the dust collecting pipe (2) through a gap (S) between the pipe port and the nozzle (N) by making the inside a negative pressure and using the pneumatic device. A method for collecting dust in a pneumatic device, characterized in that dust generated in the air is collected together with exhaust gas. 2. A dust collector for collecting dust generated by the use of pneumatic equipment, the dust collector having one end connectable to an exhaust port of the pneumatic equipment and the other end provided with a nozzle (N). An exhaust pipe (1), a suction port (3) arranged in a dust generating part of a pneumatic device, and one end of the suction port (3) connected to the suction port. (3) a dust collecting pipe (2) open to the inside, and a dust collector (4) to which the other end side of the dust collecting pipe (2) is connected, the exhaust pipe (1) The tip of the nozzle (N) is inserted into the pipe opening of the dust collecting pipe (2) or is installed at the pipe opening so as to discharge exhaust gas into the dust collecting pipe (2). ) And the pipe opening, there is provided a gap (S) for sucking in air, the dust collecting apparatus for pneumatic equipment.