JP2019058841A - Dust collector - Google Patents

Abstract

To provide a dust collector which can sufficiently and unfailingly eliminate (remove) dust captured by a cylindrical filter.SOLUTION: A dust collector 7 removes dust captured by a cylindrical filter 71. The dust collector 7 has: a pendulum pipe 84 disposed at a filter chamber 4 in the cylindrical filter 71; and a pendulum weight 86 which fits on the lower pipe end 84B side of the pendulum pipe 84 and is fixed to the pendulum pipe 84. The dust collector 7 has a compression gas supply source 89 which supplies compression air to the pendulum pipe 84. The pendulum pipe 84 jets compression air from the lower pipe end 84B in conjunction with supply of the compression air to be swung to an inner peripheral surface 71D of the cylindrical filter 71 by jet force of the compression air. The pendulum weight 86 strikes the inner peripheral surface 71D of the cylindrical filter 71 in conjunction with swing of the pendulum pipe 84 to remove the dust captured by the cylindrical filter 71.SELECTED DRAWING: Figure 44

Description

  TECHNICAL FIELD The present invention relates to a dust collector for capturing dust contained in air.

  Patent Document 1 discloses a dust collector as a technology for capturing dust contained in air. The dust collector comprises a main body, a blower unit, a cylindrical main filter and a reverse flow nozzle. The main body has a motor chamber, a dust collection chamber and a relay chamber at the upper and lower sides, and a blower unit is disposed in the motor chamber. The cylindrical main filter is disposed in the dust collection chamber with the cylinder center line up and down, and the lower cylindrical end is closed by the bottom plate. The reverse flow nozzle is disposed in the relay chamber located above the main filter and injects air into the main filter. The dust collector sucks air from the air intake port of the main body in the blower unit, and generates an air flow which flows from the dust collection chamber to the main filter through the main filter. Air is drawn into the dust collection chamber from the air intake, passes through the main filter, and flows from the relay chamber to the blower unit. The cylindrical main filter captures fine dust and the like contained in the air (welding spatter and dust of welding fumes). The blower unit exhausts the sucked air to the outside of the main body.

  Patent Document 1 (dust collector) ejects air from the backflow nozzle disposed in the upper direction (relay chamber) of the main filter into the main filter to remove dust from the main filter. The air backflow nozzle removes fine dust and the like (weld spatter and dust of welding fume) captured by the main filter by backwashing with air to remove dust.

JP 2002-224838 A

  However, since patent document 1 injects air in the main filter from the upper part of the main filter, there is a possibility that air can not be injected to the whole inner periphery of the main filter, and dust etc. which were caught with the main filter, Backwashing with air does not remove dust well.

  An object of the present invention is to provide a dust collector capable of dusting (removing) dust captured by a cylindrical filter sufficiently and reliably.

According to a first aspect of the present invention, there is provided a dust collection and cleaning cylinder disposed with a cylinder center line up and down, a lower lid for airtightly closing the lower cylinder end of the dust collection and cleaning cylinder, and the dust collection and cleaning cylinder. A dust collecting chamber on the lower lid side and a cleaning chamber on the upper cylinder end side of the dust collecting and purifying cylinder, at the upper and lower ends of the dust collecting and purifying cylinder, disposed between the upper cylinder end and the lower lid; A partition that partitions air-tightly, an air suction port that is formed on a peripheral wall of the dust collection and cleaning cylinder, opens to the dust collection chamber, is formed on the partition, and the dust collection chamber and the cleaning chamber A dust collector main body configured to include an open clean outlet, a cylindrical center line vertically directed, and a circumferential wall of a dust collecting and cleaning cylinder disposed at an interval to the dust collecting chamber, the dust collecting chamber A cylindrical filter for capturing dust contained in air, the cylindrical filter airtightly closing the lower cylindrical end of the cylindrical filter The cylindrical filter is suspended in the dust collection chamber with the upper cylindrical end supported by the partition plate and spaced apart from the lower lid. A filter unit disposed in airtight communication with the filter chamber from the upper cylindrical end to the clean outlet of the partition body; and the cleaner chamber in communication with the filter chamber to draw in the air in the filter chamber; A blower for generating an air flow passing from the dust chamber to the filter chamber and flowing to the filter chamber and exhausting the sucked air to the outside air, and injecting a compressed gas in the filter chamber, and the cylindrical filter from the filter chamber And a dust removing device for removing dust captured by the cylindrical filter by striking the inner circumferential surface of the dust collector.
According to the first aspect of the present invention, the dust collection main body, the filter unit, and the blower are provided, and the dust collection main body is a dust collection and cleaning cylinder disposed with the cylinder center line up and down, and the dust collection and cleaning A lower cover that airtightly closes the lower cylinder end of the cylindrical body, and the upper cover of the dust collection and cleaning cylinder and the lower cover, and the lower cover at the top and the bottom of the dust collection and cleaning cylinder A partition body airtightly divided into a dust collection chamber on the body side and a clean chamber on the upper cylinder end side of the dust collection and cleaning cylinder, and a peripheral wall of the dust collection and cleaning cylinder is opened in the dust collection chamber An air suction port, and a clean outlet formed in the partition and opening to the dust collection chamber and the cleaning chamber at the top and bottom, and the filter unit has the cylinder center line vertically oriented And a peripheral wall of the dust collecting and cleaning cylinder, which is disposed in the dust collecting chamber at an interval, and is contained in the air of the dust collecting chamber. And a filter lower lid which airtightly closes a lower cylindrical end of the cylindrical filter to define a filter chamber in the cylindrical filter, the cylindrical filter comprising: An upper cylindrical end is supported by the partition, and the lower lid is suspended at a distance from the dust collection chamber, and the filter chamber is airtightly sealed from the upper cylindrical end to the clean outlet of the partition. The blower is disposed in communication with the cleaning chamber, and sucks the air in the filter chamber to generate an air flow from the dust collecting chamber through the cylindrical filter to the filter chamber. A dust collector for exhausting the sucked air to the outside air, wherein a compressed fluid is injected in the filter chamber, and the inner peripheral surface of the cylindrical filter is struck from the filter chamber to remove dust captured by the cylindrical filter. The The dust removing device, configuration may be employed to comprise dust collector.
According to the first aspect of the present invention, the dust removal apparatus jets compressed gas in the filter chamber, strikes a plurality of locations (plurality of positions) of the inner peripheral surface of the cylindrical filter from the filter chamber, and A configuration for removing (removing) the dust captured in the above can also be adopted.
In the first aspect of the present invention, the filter unit includes a protective cylindrical body disposed in the filter chamber with a cylindrical center line up and down, the protective cylindrical body having a plurality of air holes, The outer circumferential surface of the protective cylindrical body is disposed in contact with the inner circumferential surface of the cylindrical filter, the air holes are opened to the inner circumferential surface of the cylindrical filter and the filter chamber in the protective cylindrical body, and the dust is removed The apparatus may adopt a configuration in which compressed gas is jetted in the filter chamber, and the inner peripheral surface of the protective cylindrical body is struck from the filter chamber to remove dust captured by the cylindrical filter.

  According to a second aspect of the present invention, the dust removing apparatus includes a pendulum, and a pendulum support for supporting the pendulum and supplying compressed gas to the pendulum, wherein the pendulum comprises a tube center. A pendulum tube which is disposed vertically and vertically at a cylindrical center line of the cylindrical filter and is disposed in the filter chamber and extends up and down at a distance from the filter lower lid, and a center of gravity of the pendulum tube And a pendulum weight which is externally fitted to the lower end of the pendulum tube and fixed to the pendulum tube, the pendulum support is disposed in the cleaning chamber, and is disposed in the upper portion of the pendulum tube. It is connected to the end side and connected to the air supply unit which swingably supports the pendulum tube with the pipe center on the upper side of the pendulum tube as the first fixed point, and connected to the air supply unit, from the air supply unit Supply compressed gas to the pendulum tube And the pendulum tube injects the compressed gas from the lower pipe end in the filter chamber with the supply of the compressed gas, and the pendulum tube uses the first fixed point as a fulcrum. The dust collector according to claim 1, characterized in that it is shaken on the inner peripheral surface of a cylindrical filter, and the pendulum weight strikes the inner peripheral surface of the cylindrical filter as the pendulum tube swings.

  A third aspect of the present invention is the pendulum tube according to the second aspect, wherein a pipe length between the first fixed point and the center of gravity is longer than an inner radius of the cylindrical filter. It is a dust collector as described.

  A fourth aspect of the present invention is provided with a guide cylinder for guiding the swing of the pendulum tube, the guide cylinder being disposed with the cylinder center line vertically oriented and at the tube center line of the pendulum tube. And the outer cylindrical surface of the cylindrical filter and the pendulum tube are spaced apart from each other and fitted to the pendulum tube, and the lower cylindrical end of the guide cylindrical body is the lower tube end of the pendulum tube from the first fixed point. The pendulum tube is disposed on the side, and in the pendulum tube, the tube length between the lower cylindrical end of the guide cylinder and the center of gravity is a length exceeding the inner circumferential radius of the cylindrical filter, and the pendulum tube is The compressed gas is injected from the lower pipe end in the filter chamber along with the supply of the gas, and is shaken to the inner peripheral surface of the cylindrical filter with the first fixed point as a fulcrum, and the lower cylinder of the guide cylinder The pendulum weight is in contact with the end side, and the pendulum weight is the pendulum With the shaking, a dust collector of claim 2 or claim 3, characterized in that striking the inner peripheral surface of the cylindrical filter.

  According to a fifth aspect of the present invention, the filter unit includes a protective cylindrical body disposed in the filter chamber with a cylindrical center line up and down, the protective cylindrical body having a plurality of air holes, An outer peripheral surface of a protective cylindrical body is disposed in contact with an inner peripheral surface of the cylindrical filter, the air holes are opened to the inner peripheral surface of the cylindrical filter and the filter chamber in the protective cylindrical body, and the pendulum The dust collector according to any one of claims 1 to 4, wherein the weight strikes the inner peripheral surface of the protective cylindrical body as the pendulum tube shakes.

  According to a sixth aspect of the present invention, the air supply unit is disposed in the clean chamber, and the air supply unit is extended in a radial direction of the cylindrical filter from a pipe center line of the pendulum tube. An auxiliary pendulum disposed between the air pipe and the upper pipe end of the pendulum tube, with the air pipe supported by the clean cylinder and the pipe center line directed vertically and at the pipe center line of the pendulum pipe A pipe, an upper pipe joint disposed between the upper pipe end of the auxiliary pendulum pipe and the air supply pipe and connected to the upper pipe end of the auxiliary pendulum pipe and the air duct; and an upper pipe of the auxiliary pendulum pipe The compressed gas disposed between the end and the lower pipe end of the auxiliary pendulum pipe and connected to the upper pipe end of the pendulum pipe and the lower pipe end of the auxiliary pendulum pipe; A source is connected to the air supply tube, and the compressed gas is shaken from the air supply tube. The auxiliary pendulum pipe is a flexible pipe that is harder than the pendulum pipe, and the upper pipe joint is the auxiliary pendulum center with the pipe center on the upper pipe end side of the auxiliary pendulum pipe as a second fixing point. The lower pipe joint swingably supports the pendulum tube with the pipe center on the upper tube end side of the pendulum tube as a first fixed point, and the pendulum tube supports the pendulum tube by compression. With the supply of gas, the compressed gas is jetted from the lower pipe end in the filter chamber, and is shaken on the inner peripheral surface of the cylindrical filter with the first fixed point as a fulcrum, and the auxiliary pendulum tube and the auxiliary pendulum tube The lower joint tube is swung to the inner peripheral surface of the cylindrical filter with the second fixing point as a fulcrum along with the swinging of the pendulum tube, and the pendulum weight is the auxiliary pendulum tube, the lower pipe joint and As the pendulum tube shakes, the inner circumference of the cylindrical filter 2 through claim, characterized in that striking the a dust collector according to claim 4.

  The filter unit according to claim 7 of the present invention. The protective cylindrical body is disposed in the filter chamber with the cylindrical center line facing up and down, the protective cylindrical body has a plurality of air holes, and the outer peripheral surface of the protective cylindrical body is the inner peripheral surface of the cylindrical filter And the air holes are opened to the inner circumferential surface of the cylindrical filter and the filter chamber in the protective cylinder, and the pendulum weight is the auxiliary pendulum tube, the lower pipe joint, and The dust collector according to claim 6, wherein the inner peripheral surface of the protective cylindrical body is hit with the swinging of the pendulum tube.

In the second to seventh aspects of the present invention, the pendulum tube may be formed of a flexible synthetic resin tube including a silicon resin tube.
In the second to seventh aspects of the present invention, it is also possible to adopt a configuration in which the pendulum weight is formed into a sphere and is made of a synthetic resin containing a polyurethane resin.
In the second to seventh aspects of the present invention, the auxiliary pendulum tube may be a synthetic resin tube including a flexible nylon resin tube harder than the pendulum tube.

In the first aspect of the present invention, the blower sucks the air in the filter chamber and exhausts the sucked air to the outside air (outside of the dust collector body). By suction of the blower, air containing dust flows into the dust collection chamber from the air suction port. The air flowing into the dust collection chamber passes from the outer peripheral surface of the cylindrical filter through the cylindrical filter and flows into the filter chamber. The cylindrical filter captures dust from the air passing through the cylindrical filter, and the air flows out into the filter chamber.
Thereby, dust contained in the air is captured by the cylindrical filter.
According to the first aspect of the present invention, the dust removal device jets compressed gas in the filter chamber and strikes the inner circumferential surface of the cylindrical filter from the filter chamber.
The compressed gas injected into the filter chamber passes through the cylindrical filter from the inner circumferential surface to the outer circumferential surface of the cylindrical filter. Dust captured by the cylindrical filter is removed from the cylindrical filter by compressed air.
The cylindrical filter is vibrated by the impact of the inner peripheral surface of the cylindrical filter. Due to the vibration of the cylindrical filter, dust captured by the cylindrical filter is removed (removed) from the cylindrical filter.
Dust removed (removed) from the cylindrical filter is collected on the lower cover of the dust collection chamber.
As described above, according to claim 1 of the present invention, dust is sufficiently and reliably removed from the cylindrical filter by ejecting compressed gas into the filter chamber and striking the inner peripheral surface of the cylindrical filter. it can.

According to a second aspect of the invention, the compressed gas supply source supplies compressed gas to the pendulum tube. The pendulum tube injects (sprays) the compressed gas from the lower tube end into the filter chamber as the compressed gas is supplied. The compressed gas jetted (jetted) into the filter chamber passes through the cylindrical filter from the inner circumferential surface to the outer circumferential surface of the cylindrical filter. Dust captured by the cylindrical filter is removed from the cylindrical filter by compressed gas.
The pendulum tube is shaken (swayed) on the inner circumferential surface of the cylindrical filter with the first fixed point as a fulcrum by the injection of the compressed gas (the injection force of the compressed gas). The pendulum tube swings (swings) in a direction orthogonal to the cylindrical center line of the cylindrical filter with the first fixed point as a fulcrum. The pendulum weight strikes the inner circumferential surface of the cylindrical filter as the pendulum tube shakes. The cylindrical filter is vibrated by the impact of the inner peripheral surface of the cylindrical filter. Due to the vibration of the cylindrical filter, the dust captured by the cylindrical filter is removed (removed) from the cylindrical filter.
The swinging direction (swinging direction / amplitude direction) of the pendulum tube is changed by the impact of the pendulum weight and the compressed gas (jetting power of the compressed gas) injected from the lower pipe end. The pendulum weight changes the impact position of the inner peripheral surface of the cylindrical filter in accordance with the change of the swing direction of the pendulum tube.
Thus, the pendulum weight strikes the inner peripheral surface of the cylindrical filter at a plurality of positions in the circumferential direction of the cylindrical filter, so dust can be removed (removed) from the entire cylindrical filter, and damage to the cylindrical filter Can be suppressed.
Dust removed (removed) from the cylindrical filter is collected on the lower cover of the dust collection chamber.
Thus, according to claim 2 of the present invention, the inner peripheral surface of the cylindrical filter is struck with the compressed gas injected from the lower end of the pendulum tube and the pendulum (pendulum tube and pendulum weight). Thus, dust can be sufficiently and reliably removed (removed) from the cylindrical filter.
In particular, when the inner peripheral surface of the cylindrical filter is hit with a pendulum weight, the lower end of the pendulum tube comes closest to the inner peripheral surface of the cylindrical filter and jets compressed gas to the inner peripheral surface of the cylindrical filter. As a result, the compressed gas injected from the lower end of the pendulum tube passes directly through the cylindrical filter from the inner peripheral surface to the outer peripheral surface of the cylindrical filter without diffusing into the filter chamber, and dusts are removed from the cylindrical filter Remove dust (remove).

  According to the third aspect of the present invention, the pendulum tube causes the pendulum weight to strike the inner circumferential surface of the cylindrical filter with certainty because the pendulum weight has an amplitude (swing amplitude) that allows the inner circumferential surface of the cylindrical filter to strike. be able to.

According to the fourth aspect of the present invention, when the pendulum tube is swung to the inner peripheral surface of the cylindrical filter, it abuts on the lower cylindrical end side of the guide cylindrical body. The guide cylinder suppresses (limits) the swinging of the pendulum tube in contact with the lower cylindrical end side, and guides the pendulum tube to the inner peripheral surface of the cylindrical filter as a swing at a fixed height position from the filter lower lid. Do.
In the pendulum tube, the tube length between the lower cylindrical end of the guide cylinder and the pendulum weight is made a tube length exceeding the inner circumferential radius (inner radius) of the cylindrical filter. Thereby, even when the pendulum tube abuts on the lower cylindrical end side of the guide cylindrical body at the time of swinging, the pendulum weight can be struck on the inner peripheral surface of the cylindrical filter.

According to the fifth aspect of the present invention, the pendulum weight strikes the inner circumferential surface of the protective cylindrical body and does not strike the inner circumferential surface of the cylindrical filter directly.
As a result, the inner circumferential surface of the cylindrical filter is protected by the protective cylindrical body, so that damage (damage) to the impact of the pendulum weight can be suppressed.

According to the sixth aspect of the present invention, the pendulum tube jets the compressed gas from the lower tube end based on the supply of the compressed gas. The pendulum tube is swayed (swayed) to the inner peripheral surface of the cylindrical filter with the first fixed point as a fulcrum by the injection of the compressed gas (the injection force of the compressed gas). The pendulum tube swings at an amplitude and an amplitude speed at which the pendulum weight can strike the inner peripheral surface of the cylindrical filter.
The auxiliary pendulum tube and the lower pipe joint are shaken (swayed) on the inner circumferential surface of the cylindrical filter with the second fixing point as a fulcrum, as the pendulum tube shakes. Since the reinforced pendulum tube is a flexible tube that is harder than the hardness of the pendulum tube, it has a smaller amplitude than the pendulum tube and a slower amplitude speed than the pendulum tube.
Thus, the pendulum tube is swung (touched) by the inner periphery of the cylindrical filter together with the reinforcing pendulum tube and the lower pipe joint with the second fixing point as a fulcrum, and the single fixing cylinder with the first fixing point as a fulcrum. Since it is shaken (touched) on the inner circumferential surface of the filter, damage to the lower pipe joint due to the swinging of the pendulum tube can be suppressed.

According to the seventh aspect of the present invention, the pendulum weight strikes the inner circumferential surface of the protective cylinder and does not strike the inner circumferential surface of the cylindrical filter directly.
As a result, the inner circumferential surface of the cylindrical filter is protected by the protective cylindrical body, so that damage (damage) to the impact of the pendulum weight can be suppressed.

It is a front view showing a dust collector concerning the present invention. It is a side view showing a dust collector concerning the present invention. It is a top view which shows the dust collector which concerns on this invention. It is AA sectional drawing of FIG. It is the AA cross-section perspective view of FIG. It is the elements on larger scale of FIG. 1, and is a front view showing a dust collection and cleaning cylinder (dust collection cylinder), a filter unit, a dust removal device, a guide cylinder, and a lower lid. It is B arrow line view of FIG. It is CC arrow sectional drawing of FIG. It is DD arrow sectional drawing of FIG. It is DD arrow sectional drawing of FIG. 6, Comprising: The box doorway is opened by the front door, It is the figure which pulled out the dust collection box from the dust collection chamber (dust collection cylinder). It is the EE arrow sectional drawing of FIG. It is the EE arrow sectional drawing of FIG. 7, Comprising: It is the figure which removed the partition body and the filter unit (cylindrical filter) from the dust collecting cylinder inside (dust collecting clean cylinder inside). FIG. 2 is an enlarged view of an essential part of FIG. 1 and is a front view showing a dust collection and cleaning cylinder (a dust collection cylinder and a cleaning cylinder), a cleaning filter unit (secondary filter), a filter unit, a dust removing device and a guiding cylinder. is there. It is F arrow directional view of FIG. It is GG arrow sectional drawing of FIG. It is the HH arrow directional cross-sectional view of FIG. It is II arrow sectional drawing of FIG. It is an II arrow directional cross-sectional view of FIG. 14, and is a figure which removed the clean cylinder from the dust collection cylinder. It is a partial enlarged view of FIG. 1, and is a front view showing a dust collection and cleaning cylinder (a dust collection cylinder and a cleaning cylinder), a blower cylinder, a cleaning filter unit, a filter unit, a blower, a dust removing device, and a guide cylinder. It is. FIG. 20 is a view on arrow J of FIG. 19; FIG. 20 is a cross-sectional view taken along the line K-K in FIG. FIG. 20 is a cross-sectional view taken along line L-L in FIG. FIG. 21 is a partial cross-sectional view taken along the line MM in FIG. It is a partial enlarged view of FIG. 1, and is a front view showing a blower cylinder, an exhaust filter unit, a blower, and an upper lid. It is NN arrow sectional drawing of FIG. It is OO arrow sectional drawing of FIG. FIG. 25 is a partial cross-sectional view taken along the line PP in FIG. 24. It is a front view showing a filter unit (primary filter). It is a top view which shows a filter unit (primary filter). It is a bottom view showing a filter unit (primary filter). It is QQ arrow sectional drawing of FIG. It is the RR arrow sectional drawing of FIG. It is SS arrow sectional drawing of FIG. It is a front view showing a dust remover and a guide cylinder. It is a side view showing a dust remover and a guide cylinder. It is a top view which shows a dust removal apparatus and a guide cylinder. It is TT arrow sectional drawing of FIG. It is a partially enlarged view of FIG. 37, and (a) is a cross-sectional view showing a pendulum tube, a reinforcing tube, a pendulum weight and a retaining ring, and (b) is a bottom view of FIG. 38 (a). FIG. 38 is an enlarged view of the arrow U in FIG. 37. It is a partially enlarged view of FIG. It is a partially expanded view of FIG. It is a figure which shows the control apparatus of a dust collector. In dust removal of a cylindrical filter, it is sectional drawing which injected compressed air (compressed gas) from the lower pipe end of a pendulum pipe. It is sectional drawing which shows the rocking state of a pendulum tube in dust removal of a cylindrical filter. It is a partially expanded sectional view of FIG. 44, and is a figure which shows the shaking state of an auxiliary | assistant pendulum tube and a lower side pipe joint. It is a V-V arrow line view of FIG.

  The dust collector according to the present invention will be described with reference to FIGS. 1 to 46.

In FIGS. 1 to 46, the dust collector X captures dust contained in air with a cylindrical filter and exhausts clean air. The dust collector X removes dust captured by the cylindrical filter.
"Dust contained in the air" means dust and particulates contained in the air, and in addition to dust in the air, for example, welding fumes contained in the air at the time of electric welding (at the time of welding It also includes fine particles to be scattered (the same applies hereinafter).

  As shown in FIGS. 1 to 39, the dust collector X includes a dust collector body 1, a clean filter unit 2 (secondary filter), an exhaust filter unit 3 (exhaust filter), a filter unit 5 (primary filter), a blower 6, and a dust remover. 7 (dust removing means), a guide cylindrical body 8 and a control device 9 (control means).

<Dust collector main body 1>
As shown in FIGS. 1 to 27, the dust collector main body 1 is, for example, square in cross section and formed in a hollow rectangular shape. The dust collector main body 1 is installed on a floor surface with the cylinder center line up and down (vertical direction UD).
The dust collector body 1 is, as shown in FIGS. 1 to 12, a dust collection and cleaning cylinder 11 (dust collection and cleaning cylinder case), a lower lid 14, a partition 15, an air inlet 16, a cleaning outlet 17, and a blower cylinder. A body 18 (blower cylinder case), an exhaust cylinder 19 (exhaust case), an upper lid 20, a dust collection box 21 and a front door 22 are included.
The dust collector body 1 is formed into a hollow rectangular solid by vertically stacking the dust collection and cleaning cylinder 11, the blower cylinder 18 and the exhaust cylinder 19 in the vertical direction UD. The dust collector body 1 has a closed space (a square space) inside by closing (closing) the upper and lower cylindrical ends with the upper cover 20 and the lower cover 14.

As shown in FIG. 1 to FIG. 12, the dust collection and cleaning cylinder 11 is disposed with the cylinder center line A facing in the vertical direction (vertical direction UD).
The dust collection and cleaning cylinder 11 is constituted of, for example, a dust collection cylinder 12 (a dust collection cylinder case) and a cleaning cylinder 13 (a cleaning cylinder case).
In the dust collection and cleaning cylinder 11, the dust collection cylinder 12 and the cleaning cylinder 13 are formed into a rectangular cylinder having a square space inside.

The dust collection cylinder 12 is a lower cylinder of the dust collection and cleaning cylinder 11 as shown in FIGS. 1 to 13. The dust collection cylinder 12 is disposed with the cylinder center line B (dust collection cylinder center line) facing up and down (vertical direction UD), and the upper cylinder end 12A (dust collection upper cylinder end) and the lower cylinder end 12B (dust collection Lower cylinder end).
In the vertical direction UD, the cylinder center line of the dust collector body 1 (the dust collection and cleaning cylinder 11, the dust collection cylinder 12, the cleaning cylinder 13, the blower cylinder 18, and the cylinder center line A of the exhaust cylinder 19 E) extending direction.

  The dust collection cylinder 12 includes a plurality of filter support members 25, a plurality of dust collection and recovery members 26, a wind shield member 27, and an air suction pipe 28.

Each of the filter support members 25 is positioned on the upper cylinder end 12A side at the same position from the upper cylinder end 12A of the dust collection cylinder 12 as shown in FIGS. 4, 5, 6, 11 and 12. It is disposed in the dust collection cylinder 12 (in the dust collection and cleaning cylinder 11).
Each filter support member 25 is formed in an L-shaped plate, and is configured to have a filter horizontal plate 25A (horizontal plate) and a filter vertical plate 25B (vertical plate).
Each filter support member 25 is disposed on each peripheral wall 12C (each side wall) of the dust collection cylinder 12. Each filter support member 25 is fixed to the dust collection cylinder 12 by attaching the filter vertical plate 25 B to each peripheral wall 12 C of the dust collection cylinder 12. In each filter support member 25, the filter horizontal plate 25 </ b> A is disposed so as to protrude from the filter vertical plate 25 </ b> B toward the cylinder center line B in the dust collection cylinder 12.

As shown in FIGS. 4, 5, 6, and 8 to 12, each dust collection and recovery member 26 includes the lower cylindrical end 12 </ b> B of the dust collection cylindrical body 12 and each filter support member 25 in the vertical direction UD. It is located between the dust collecting cylinders 12 (in the dust collecting and cleaning cylinders 11). The respective dust collection and collection members 26 are arranged at intervals in the lower cylindrical end 12B of the dust collection cylinder 12 in the vertical direction UD. The dust collection and recovery members 26 are disposed along the peripheral walls 12C of the dust collection cylinder 12, and are fixed to the peripheral walls 12C.
Each dust collection member 26 is formed of, for example, a flat plate (dust collection flat plate), and is inclined while extending from the peripheral wall 12C of the dust collection cylinder 12 to the cylinder center line B and the lower cylinder end 12B.

The wind shield members 27 are located between the filter support members 25 and the dust collection members 26 in the vertical direction UD, as shown in FIGS. 4, 5, 6, 8, 11 and 12. Thus, the dust collecting cylinder 12 is disposed in the dust collecting cylinder 12 (in the dust collecting and cleaning cylinder 11). The wind shield member 27 is attached and fixed to one peripheral wall 12C (peripheral wall on the right side) of the dust collection cylinder 12.
The wind shielding member 27 is formed in an L-shaped plate, and is configured to have a wind shielding horizontal plate 27A (horizontal plate) and a wind shielding vertical plate 27B (vertical plate). In the left-right direction LR, the wind shielding member 27 is disposed so as to face the wind shielding vertical plate 27B at one peripheral wall 12C (peripheral wall on the right side) at an interval. The windproof horizontal plate 27A is disposed orthogonal to one peripheral wall 12C (cylinder center line B). In addition, the left-right direction LR is a direction orthogonal to the up-down direction UD (each cylinder centerline A to E) (the same applies hereinafter).
The wind shield member 27 is fixed to the dust collection cylindrical body 12 with the wind shield horizontal plate 27A attached to the one peripheral wall 12C (the peripheral wall on the right side). The wind shielding horizontal plate 27A supports the wind shielding vertical plate 27B in parallel with one peripheral wall 12C, and is attached to the peripheral wall 12C (the peripheral wall on the right side) of the dust collection cylinder 12.
In the windshield member 27, the windshield horizontal plate 27A and the windshield vertical plate 27B extend in the front-rear direction FR. In addition, the front-rear direction FR is a direction orthogonal to the vertical direction UD (the cylinder center lines A to E) and the left-right direction LR (the same applies hereinafter).
The air suction pipe 28 is disposed outside the dust collection cylinder 12. The air suction pipe 28 (connection pipe) is attached to one peripheral wall 12C (peripheral wall on the right side) of the dust collection cylinder 12 in the left-right direction LR.

The cleaning cylinder 13 is an upper cylinder of the dust collection and cleaning cylinder 11 as shown in FIGS. 1 to 5 and FIGS. 15 to 18. The clean cylinder 13 is disposed with the cylinder center line C (clean cylinder center line) directed up and down (vertical direction UD) and the cylinder center line C positioned (coincident) with the cylinder center line B of the dust collection cylinder 12 And has an upper cylinder end 13A (clean upper cylinder end) and a lower cylinder end 13B (clean lower cylinder end). The clean cylinder 13 is loaded concentrically on the dust collection cylinder 12.
The clean cylinder 13 is loaded on the upper cylinder end 12A of the dust collection cylinder 12 from the lower cylinder end 13B. As shown in FIG. 1, FIG. 2, FIG. 4, FIG. 5, FIG. 13 and FIG. 17, the clean cylindrical body 13 has a lower cylindrical end 13B (lower end of each circumferential wall 13C) 12A (upper end of each peripheral wall 12C) is airtightly contacted and loaded on the dust collection cylinder 12.
The cleaning cylinder 13 is airtightly fixed to the dust collection cylinder 12 so as to be removable from the dust collection cylinder 12 and loaded on the upper cylinder end 12A of the dust collection cylinder 12.
Accordingly, air does not leak from between the upper cylinder end 12A and the lower cylinder end 13B in the dust collection cylinder 12 and the cleaning cylinder 13 loaded vertically.
As described above, the dust collection and cleaning cylinder 11 is configured such that the cleaning cylinder 13 (upper cylinder) is removably loaded (fixed) on the dust collection cylinder 12 (lower cylinder).

  The cleaning cylinder 13 has a cleaning and closing member 29 as shown in FIGS. 4 to 6, 13 to 15, 17 and 18. The cleaning and closing member 29 is disposed in the cleaning cylinder 13. The cleaning and closing member 29 is disposed on the upper cylinder end 13A side of the cleaning cylinder 13 in the vertical direction UD, and airtightly closes (closes) the upper cylinder end 13A side of the cleaning cylinder 13.

The cleaning and closing member 29 is configured to have, for example, a clean and closing flat plate 30 (closing flat), a cleaning and closing frame 31 (closing frame), and a secondary filter attachment port 32.
The clean and closed flat plate 30 is formed into a square flat plate. The cleaning and closing frame 31 is an inverted L-shaped cross section, is formed in a square frame, and is disposed along each side (each side of the square) of the cleaning and closing flat plate 30. The clean closing frame 31 is erected on the clean closing plate 30 and fixed to the clean closing plate 30.
The cleaning and closing member 29 airtightly abuts the cleaning and closing frame 31 on the peripheral walls 13C (side walls) of the cleaning cylinder 13 and is disposed on the upper cylinder end 13A side in the cleaning cylinder 13. The cleaning and closing flat plate 30 is disposed orthogonal to the cylinder center line C of the cleaning cylinder 13, and closes (closes) the upper cylinder end 13 </ b> A side of the cleaning cylinder 13.
As shown in FIG. 13 to FIG. 15, FIG. 17 and FIG. 18, the cleaning and closing member 29 mounts the cleaning and closing frame 31 on each peripheral wall 13C of the cleaning cylinder 13 to the upper cylinder end 13A side of the cleaning cylinder 13. It is fixed.
The secondary filter attachment port 32 is formed in, for example, a square port (square hole) as shown in FIGS. 14, 15, 17 and 18, and the center of the port (center of hole) is the cylinder center of the cleaning cylinder 13. Positioned (coincident) with the line C, the clean closed plate 30 is formed. The secondary filter attachment port 32 penetrates the clean and close plate 30 in the up and down direction UD and is opened in the clean cylinder 13.

The lower lid 14 is, as shown in FIGS. 1, 2, 4 to 6, and 10 to 12, the lower cylindrical end of the dust collecting and cleaning cylindrical body 11 (the lower cylindrical end 12B of the dust collecting cylindrical body 12 Airtightly).
The lower lid 14 is formed in a square lid flat plate (flat plate), and airtightly closes (closes) the lower cylindrical end 12 B of the dust collection cylinder 12 to be attached and fixed to the dust collection cylinder 12.

The partition 15 is, as shown in FIGS. 4 to 7, 11 to 13, and 16 to 18, in the vertical direction UD, the upper cylinder end of the dust collection and cleaning cylinder 11 (on the upper surface of the cleaning cylinder 13). It is disposed between the tube end 13A) and the lower lid 14.
The partition body 15 is the dust collection chamber 35 on the lower lid 14 side in the upper and lower direction (vertical direction UD) of the dust collection and cleaning cylinder 11 and the upper cylinder end side of the dust collection and cleaning cylinder 11 (the cleaning cylinder 13 It partitions off airtightly in the clean room 36 of the upper cylinder end 13A side).
The partition body 15 is disposed on the upper cylinder end 12A side of the dust collection cylinder 12 and disposed in the dust collection cylinder 12. The partition body 15 is disposed in the dust collection cylinder 12 so as to be removable from the inside of the dust collection cylinder 12. The partition 15 is airtightly mounted on the filter support members 25 (on the filter horizontal plate 25A) in the dust collection cylinder 12.
The partition 15 includes, for example, a partition plate 37 and a partition frame 38. The partition plate 37 is formed in a square plate. The partition frame 38 is an L-shaped cross section, is formed in a square frame, and is disposed along each side (each side of the square) of the partition plate 37. The partition frame 38 is erected on the partition plate 37 and fixed to the partition plate 37.
As shown in FIG. 5, FIG. 7 and FIG. 11, the partition body 15 is an upper cylinder in the dust collection cylinder 12 with a space between the partition frame 38 and each peripheral wall 12C (each side wall) of the dust collection cylinder 12. It is disposed on the end 12A side.
The partition 15 is disposed in the dust collection cylinder 12 with the partition plate 37 mounted on each filter support member 25 of the dust collection cylinder 12. The partition plate 37 is as shown in FIG. In the dust collection cylinder 12, it is airtightly mounted on the filter horizontal plate 25A of each filter support member 25 in parallel with the lower lid 14 (orthogonal to the cylinder center line B of the dust collection cylinder 12). The partition plate 37 abuts against the filter horizontal plate 25A of each filter support member 25 and airtightly closes (closes) the upper cylinder end 12A side of the dust collection cylinder 12.
As a result, as shown in FIG. 17, the partition 15 airtightly divides the dust collection chamber 35 between the partition plate 37 and the lower lid 14 in the vertical direction UD. The clean room 36 is divided airtightly in the meantime.

The air suction port 16 is a peripheral wall of the dust collecting and cleaning cylindrical body 11 as shown in FIGS. 4, 6, 8, 11 and 12, and one peripheral wall 12C of the dust collecting cylindrical body 12 (right Peripheral wall). The air suction port 16 is formed in one peripheral wall 12C (peripheral wall on the right side) of the dust collection cylindrical body 12 so as to face the air shield vertical plate 27B of the air shield member 27. The air suction port 16 is formed in one peripheral wall 12C (peripheral wall on the right side) of the dust collection cylinder 12 so as to face (face) the air suction pipe 28.
The air suction port 16 penetrates one peripheral wall 12C of the dust collection cylinder 12 in the left-right direction LR (direction orthogonal to the cylinder center line B) and opens in the dust collection chamber 35 and the air suction pipe 28 . The air suction port 16 communicates the inside of the dust collection chamber 35 of the dust collection cylinder 12 and the air suction pipe 28.

  The clean outlet 17 is formed in the partition 15 (partition plate 37) as shown in FIGS. 4 to 7, 11 and 12. FIG. The clean outlet 17 is formed, for example, in a circular opening (circular hole), and the hole center line is positioned (coincident) with the cylinder center line B of the dust collection cylinder 12 and divided in upper and lower (vertical direction UD) Penetration of 37 The clean outlet 17 opens to the dust collecting chamber 35 and the cleaning chamber 36 at the upper and lower sides, and communicates the dust collecting chamber 35 and the clean chamber 36.

The blower cylinder 18 is formed into a rectangular cylinder having a square space inside as shown in FIGS. 4, 5 and 19 to 23.
The blower cylinder 18 is disposed with the cylinder center line D (blower cylinder center line) directed up and down (vertical direction UD) and the cylinder center line D positioned (coincident) with the cylinder center line C of the clean cylinder 13; It has an upper cylindrical end 18A (blower upper cylindrical end) and a lower cylindrical end 18B (blower lower cylindrical end). The blower cylinder 18 is stacked concentrically on the clean cylinder 13.
The blower cylindrical body 18 is loaded on the upper cylindrical end 13A of the clean cylindrical body 13 from the lower cylindrical end 18B. As shown in FIGS. 1, 2, 4, 5, 19, and 23, the lower cylindrical end 18B (lower end of each peripheral wall 18C) of the blower cylindrical body 18 is formed by the upper cylindrical end 13A of the clean cylindrical body 13. It is loaded airtightly on (the upper end of each peripheral wall 13C) and loaded on the clean cylinder 13.
The blower cylinder 18 is airtightly fixed to the cleaning cylinder 13 so as to be removable from the cleaning cylinder 13 and loaded on the upper cylinder end 13 A of the cleaning cylinder 13.
As a result, air does not leak from between the upper cylinder end 13A and the lower cylinder end 18B in the cleaning cylinder 13 and the blower cylinder 18 loaded vertically.

As shown in FIGS. 4, 5, and 19 to 23, the blower cylinder 18 includes a blower upper cover plate 40, a blower lower cover plate 41, a plurality of partition wall plates 43 to 45, a blower discharge port 46, and A blower inlet 47 is provided.
The blower upper cover plate 40 (upper cover plate) is formed, for example, in a square flat plate, and closes (closes) the upper cylinder end 18A of the blower cylinder 18. The blower upper cover plate 40 is attached and fixed to the blower cylinder 18.
The blower lower lid plate 41 (lower lid plate) is formed into, for example, a square flat plate, and closes (closes) the lower cylindrical end 18B of the blower cylinder 18. The blower lower lid plate 41 is attached and fixed to the blower cylinder 18.
Each of the partition wall plates 43 to 45 is disposed between the blower upper cover plate 40 and the blower lower cover plate 41 in the blower cylinder 18. Each partition plate 43 to 45 airtightly divides the inside of the blower cylinder 18 into the control chamber 48, the discharge chamber 49 and the blower chamber 50. The partition wall plate 43 divides the control chamber 48 in the one peripheral wall 18C side (right peripheral wall side) in the left-right direction LR, and the discharge chamber 49 and the blower chamber 50 in the other peripheral wall 18C side (left peripheral wall side) Partition.
Each partition wall plate 44, 45 divides the discharge chamber 49 in the one peripheral wall 18C side (front peripheral wall side) of the blower cylinder 18 in the front-rear direction FR, and the other peripheral wall 18C side of the blower cylinder 18 ( The blower chamber 50 is divided in the rear side peripheral wall side).
In the blower cylinder 18, the discharge chamber 49 and the blower chamber 50 communicate with each other at the blower hole 51 of the partition wall plate 44.
The blower discharge port 46 is formed in the blower upper cover plate 40 and opens to the discharge chamber 49 of the blower cylinder 18.
The blower inlet 47 is formed in the lower lid plate 41. The blower inlet 47 is disposed in the lower lid 41 of the blower chamber 50. The blower inlet 47 penetrates the blower lower cover plate 41 in the vertical direction UD and opens to the blower chamber 50 of the blower cylinder 18 and the cleaning chamber 36 of the cleaning cylinder 13. The blower inlet 47 communicates the blower chamber 50 of the blower cylinder 18 and the cleaning chamber 36 of the cleaning cylinder 13.
The blower inlet 47 is covered with a metal wire mesh 52.

The exhaust cylinder 19 is formed in a rectangular cylinder having a square space inside as shown in FIGS. 1, 2, 4, 5 and 24 to 27.
The exhaust cylinder 19 is disposed with the cylinder center line E (exhaust cylinder center line) directed vertically (in the vertical direction UD) and at the position (coincident) with the cylinder center line D of the blower cylinder 18, and the upper cylinder end 19A. (Exhaust upper cylinder end) and lower tubular end 19B (exhaust lower cylinder end). The exhaust cylinder 19 is loaded concentrically on the blower cylinder 18.
The exhaust cylinder 19 is loaded on the blower upper cover plate 40 of the blower cylinder 18 from the lower cylinder end 19B. The exhaust cylinder 19 airtightly abuts the lower cylinder end 19 B (lower end of each circumferential wall 19 C) on the blower upper cover plate 40 of the blower cylinder 18 and is loaded on the blower cylinder 18.
The exhaust cylinder 19 is detachably fixed to the blower cylinder 18, is airtightly fixed to the blower cylinder 18, and is stacked on the blower upper cover plate 40 of the blower cylinder 18.
Thus, air does not leak from between the upper cylinder end 18A and the lower cylinder end 19B in the blower cylinder 18 and the exhaust cylinder 19 loaded vertically.

The exhaust cylinder 19 has an exhaust lower lid plate 55 (lower lid plate) and an exhaust inflow port 56 as shown in FIGS. 4, 5 and 24 to 27.
The exhaust lower lid plate 55 is formed, for example, in a square flat plate, and is disposed on the lower cylindrical end 19 B side of the exhaust cylindrical body 19 and disposed in the exhaust cylindrical body 19.
The exhaust lower lid plate 55 airtightly closes (closes) the lower cylinder end 19B side of the exhaust cylinder 19.
The exhaust inlet 56 is formed in the exhaust lower cover plate 55. The exhaust inflow port 56 penetrates the lower exhaust cover plate 55 in the vertical direction UD and opens into the blower discharge port 46 of the blower cylinder 18 and the exhaust cylinder 19. The exhaust inflow port 56 communicates the inside of the blower exhaust port 46 and the exhaust cylinder 19 with each other.

  The upper cover 20 airtightly closes (closes) the upper cylinder end 19A of the exhaust cylinder 19 as shown in FIGS. 1 to 5, 24 and 27. The upper cover 20 is detachably fixed to the exhaust cylinder 19 and fixed to the upper cylinder end 19A of the exhaust cylinder 19.

The upper lid 20 has an upper lid flat plate 58, an exhaust port 59, and an air exhaust pipe 60, as shown in FIGS.
The upper cover flat plate 58 is formed, for example, in a square flat plate and is detachably fixed to the exhaust cylinder 19 so as to be removable from the exhaust cylinder 19 and airtightly closes (closes) the upper cylinder end 19A of the exhaust cylinder 19.
The exhaust port 59 is formed in the upper lid flat plate 58. The exhaust port 59 penetrates the upper cover flat plate 58 in the vertical direction UD and opens in the exhaust cylinder 19 and outside air (outside of the dust collector body 1). The exhaust port 59 communicates the inside of the exhaust cylinder 19 and the outside air (outside of the exhaust cylinder 19).
The air exhaust pipe 60 is located outside the dust collector main body 1 and disposed so as to face the exhaust port 59. The air exhaust pipe 60 is attached to the upper lid flat plate 58 and opens to the exhaust port 59. The air exhaust pipe 60 communicates the inside of the exhaust cylinder 19 and the outside air (outside of the dust collector main body 1).

The dust collection box 21 is disposed in the dust collection cylinder 12 (in the dust collection chamber 35), as shown in FIGS. 4 to 6 and 9 to 12. The dust collection box 21 is disposed between the lower cover 14 and the dust collection members 26 in the vertical direction UD, and is mounted on the lower cover 14.
The dust collection box 21 opens in the vertical direction UD in the dust collection and collection member 26 side (partition body 15 side).
The dust collection box 21 is mounted on the lower cover 14 so as to be slidable (movable) in the front-rear direction FR.

The front door 22 is disposed outside the dust collecting cylinder 12 (outside the dust collector main body 1) as shown in FIGS. 1 to 3 and 6 to 10. The front door 22 is located on one peripheral wall 12C (the peripheral wall on the front side) of the dust collection cylinder 12 in the front-rear direction FR, and is disposed on the lower cylinder end 12B side of the dust collection cylinder 12.
The front door 22 is rotatably supported by the dust collection cylinder 12 so as to face the dust collection box 21 in the dust collection cylinder 12. The front door 22 is rotatably attached to one peripheral wall 12C (peripheral wall on the right side) in the left-right direction LF by a plurality of hinges 22A (hinge).
As shown in FIG. 10, the front door 22 opens and closes the box inlet / outlet 61 by opening and closing the box inlet / outlet 61 by opening and closing the box inlet / outlet 61 of the dust collection cylinder 12 by rotating. The box entrance 61 is formed in one peripheral wall 12C (the peripheral wall on the front side) of the dust collection cylinder 12 in the front-rear direction FR. The box inlet / outlet 61 is disposed facing the dust collection box 21 in the dust collection cylinder 12 and faces the dust collection cylinder 12 (in the dust collection chamber 35) and the outside of the dust collection cylinder 12 (dust collector Open to the outside of the main body 1). The box entrance 61 communicates the inside and the outside of the dust collection cylinder 12 (the inside and the outside of the dust collection chamber 35). The box entrance 61 is opened and closed by the front door 22.
As shown in FIG. 10, the dust collection box 21 can be pulled out from the inside of the dust collection cylinder 12 (in the dust collection chamber 35) by rotating the front door 22 and opening the box entrance 61, and It can be put in and stored in the dust cylinder 12 (in the dust collection chamber 35).

<Cleaning filter unit 2>
The cleaning filter unit 2 is disposed in the cleaning cylinder 13 as shown in FIGS. 4, 5, 13 to 15, 17, 18 and 23. The cleaning filter unit 2 is disposed in the cleaning chamber 36 at an interval from the lower cylindrical end 13B of the cleaning cylinder 13 in the vertical direction UD.
The cleaning filter unit 2 is detachably fixed to the cleaning closing member 29 of the cleaning cylinder 13, is airtightly fixed to the cleaning closing member 29, and is disposed in the cleaning chamber 36 (in the cleaning cylinder 13).

The cleaning filter unit 2 is configured to include a cleaning filter storage body 62 and a secondary filter 63, as shown in FIG. 13 to FIG. 15, FIG. 17 and FIG.
The cleaning filter storage body 62 is formed, for example, in a rectangular parallelepiped shape, and includes a cleaning filter case 64 and a cleaning filter lid 65. The cleaning filter case 64 is formed in a bottomed case with an upper end opening, and has a plurality of air holes 64A. Each air hole 64 </ b> A is formed in the entire clean filter case 64 and opens in and out of the clean filter case 64.
The cleaning filter lid 65 is placed on the cleaning filter case 64 with the upper end of the cleaning filter case 64 closed. The clean filter lid 65 has a plurality of air holes 65A. Each air hole 65 </ b> A is formed in the entire clean filter lid 65 and opens in the clean filter case 64.
The secondary filter 63 is formed of a filtration material made of non-woven fabric or the like and captures dust contained in the air. The secondary filter 63 is formed in, for example, a rectangular parallelepiped, and is densely disposed (stored) in the cleaning filter storage body 62. The secondary filter 63 is disposed between the cleaning filter case 64 and the cleaning filter lid 65.

The cleaning filter unit 2 is inserted from the cleaning filter case 64 into the secondary filter attachment port 32 of the cleaning closing member 29, as shown in FIGS. 13 to 15, 17, 18 and 23. And, the clean filter lid 65 is airtightly placed on the clean closed plate 30 of the clean closing member 29.
Thereby, the secondary filter 63 is disposed in the cleaning chamber 36 (in the cleaning cylinder 13) from the secondary filter attachment port 32 of the cleaning blocking member 29. The secondary filter 63 is spaced apart from the lower cylindrical end 13B of the clean cylinder 13 in the vertical direction UD, and the inside of the dust collection chamber 35 on the lower cylinder end 13B side of the clean cylinder 13 from the clean closing member 29 (clean cylinder In the body 13).
In the cleaning filter unit 2, the cleaning filter case 64 and the cleaning filter lid 65 are airtightly detachably fixed to the cleaning closing plate 30 of the cleaning closing member 29.

<Exhaust filter unit 3>
The exhaust filter unit 3 is disposed in the exhaust cylinder 19 as shown in FIGS. 4, 5, 24, 25 and 27. The exhaust filter unit 3 is placed on the exhaust lower lid plate 55 in the exhaust cylinder 19 so as to face the exhaust inlet 56.
The exhaust filter unit 3 is disposed between the exhaust lower lid plate 55 and the upper lid flat plate 58 of the upper lid 20 in the vertical direction UD.
The exhaust filter unit 3 is detachably fixed to the exhaust lower cover plate 55 of the exhaust cylinder 19 and airtightly fixed to the exhaust lower cover plate 55.

The exhaust filter unit 3 is configured to have an exhaust filter case 66 and an exhaust filter 67, as shown in FIGS. 24, 25 and 27.
The exhaust filter case 66 is formed in, for example, a rectangular parallelepiped, and has a plurality of air holes 66A. Each air hole 66A is formed in the entire upper end surface and lower end surface of the exhaust filter case 66 in the vertical direction UD, and opens in and out of the exhaust filter case 66.
The exhaust filter 67 is formed of a filtering material made of non-woven fabric or the like, and captures dust contained in the air. The exhaust filter 67 is formed, for example, in a rectangular parallelepiped shape and densely disposed in the exhaust filter case 66.

The exhaust filter unit 3 is disposed on the exhaust lower lid plate 55 by inserting the exhaust filter case 66 into the exhaust cylinder 19 from the lower end surface. The exhaust filter case 66 is airtightly fixed to the exhaust lower lid plate 55 so as to be removable.
The exhaust filter case 66 is disposed to face each air hole 66A on the upper end face with the exhaust port 59 (inside the air exhaust pipe 60) of the upper lid 20 (upper lid flat plate 58).
The exhaust filter case 66 is placed on the exhaust lower cover plate 55 in the exhaust cylinder 19 so that the air holes 66A on the lower end face face the exhaust inlet 56.
Thus, the exhaust filter 67 is disposed in the exhaust cylinder 19.

<Filter unit 5>
As shown in FIGS. 28 to 33, the filter unit 5 includes a cylindrical filter 71, a protective cylindrical body 72, a filter upper lid 73, and a filter lower lid 74.

The cylindrical filter 71 is formed of a non-woven fabric or other filter medium into a cylindrical body and has a filter upper cylindrical end 71A and a filter lower cylindrical end 71B.
The cylindrical filter 71 captures dust contained in the air.
The cylindrical filter 71 has an outer diameter (peripheral diameter): D1, an inner diameter (inner peripheral diameter): D2, and a cylinder length (a cylinder length in the direction of the cylinder centerline: L, and the cylinder centerline F (filter cylinder centerline The filter thickness is H [(D1-D2) / 2] in the direction orthogonal to.

The protective cylindrical body 72 is formed into a cylindrical body, for example, by a metal punching plate (expanded metal), and has an upper cylindrical end 72A (protective upper cylindrical end) and a lower cylindrical end 72B (protective lower cylindrical end).
The protective cylindrical body 72 has the cylindrical center line G (protected cylindrical center line) up and down (up and down direction UD), and the cylindrical center line G is aligned with the cylindrical center line F of the cylindrical filter 71 (filter cylindrical center line) Are disposed in the filter chamber 4 (in the cylindrical filter 71). The protective cylinder 72 is arranged concentrically to the cylindrical filter 71.
The protective cylindrical body 72 is disposed in the cylindrical filter 71 with the outer peripheral surface 72C of the protective cylindrical body 72 in contact with the inner peripheral surface 71D of the cylindrical filter 71.
The protective cylindrical body 72 is disposed between the filter upper cylindrical end 71A and the filter lower cylindrical end 71B of the cylindrical filter 71 in the vertical direction UD, and covers the entire inner peripheral surface 71D of the inner peripheral surface 71D of the cylindrical filter 71. . The upper cylindrical end 72A of the protective cylindrical body 72 is disposed flush with the filter upper cylindrical end 71A of the cylindrical filter 71 in the vertical direction UD. The lower cylindrical end 72B of the protective cylindrical body 72 is disposed flush with the filter lower cylindrical end 71B of the cylindrical filter 71 in the vertical direction UD.
The protective cylinder 72 has a plurality of air holes 72E. Each air hole 72E is formed over the entire protective cylindrical body 72, and penetrates the protective cylindrical body 72 in the direction orthogonal to the cylindrical center line F of the cylindrical filter 71. Each air hole 72E is opened to the inner circumferential surface 71D of the cylindrical filter 71 and the filter chamber 4 in the protective cylindrical body 72.

  The filter upper lid 73 closes (closes) the filter upper cylindrical end 71A of the cylindrical filter 71 and the upper cylindrical end 72A of the protective cylindrical body 72, as shown in FIGS. 28, 29, 32, and 33. The cylindrical filter 71 and the protective cylindrical body 72 are attached.

The filter top cover 73 has an outer short cylindrical member 75, an inner short cylindrical member 76, a filter closing plate 77, and a filter outlet 78.
The inner short cylindrical members 76 are disposed in the outer short cylindrical members 75 at intervals on the inner circumferential surface of the outer short cylindrical members 75. The inner short cylindrical member 76 is disposed in the outer short cylindrical member 75 concentrically with the outer short cylindrical member 75.
The filter closing plate 77 is formed in a circular flat plate and closes (closes) the upper cylindrical end of the outer short cylindrical member 75 and the upper cylindrical end of the inner short cylindrical member 76 to fix and fix them on the respective short cylindrical members 75, 76 Be done.
The filter outlet 78 is formed in the filter closing plate 77 and penetrates the filter closing plate 77 in the vertical direction UD. The filter outlet 78 is formed, for example, in a circular port (circular hole) having a diameter smaller than the inner diameter (inner circumferential diameter) of the inner short cylindrical member 76. The filter outlet 78 is disposed concentrically with the inner short cylindrical member 76 and opens in the inner short cylindrical member 76 to communicate the inside and the outside of the inner short cylindrical member 76.

The filter upper lid 73 externally fits the outer short cylindrical member 75 from the lower cylindrical end of each short cylindrical member 75, 76 to the outer peripheral surface 71C of the cylindrical filter 71, and the inner short cylindrical member 76 is the inner periphery of the protective cylindrical body 72. It is fitted in the surface 72 D and fixed to the filter upper cylindrical end 71 A side of the cylindrical filter 71 and the upper cylindrical end 72 A side of the protection cylindrical body 72.
Accordingly, the filter upper cylindrical end 71A side of the cylindrical filter 71 and the upper cylindrical end 72A side of the protective cylindrical body 72 are disposed between the short cylindrical members 75 and 76. The filter upper cylindrical end 71 A of the cylindrical filter 71 and the upper cylindrical end 72 A of the protective cylindrical body 72 are closed (closed) by the filter closing plate 77.
In the filter upper lid 73, the filter outlet 78 is disposed in the protective cylindrical body 72 so as to face each other, and communicates the inside of the protective cylindrical body 72 (in the cylindrical filter 71) to the outside.

The filter lower lid 74 closes the lower filter cylindrical end 71B of the cylindrical filter 71 and the lower cylindrical end 72B of the protective cylindrical body 72 as shown in FIGS. 28, 30, 31 and 33. , And the cylindrical filter 71 and the protective cylindrical body 72.
The filter lower lid 74 airtightly closes (closes) the filter lower cylindrical end 71 B of the cylindrical filter 71 and the lower cylindrical end 72 B of the protective cylindrical body 72 to form a filter in the cylindrical filter 71 (in the protective cylindrical body 72) Divide the room 4

The filter lower lid 74 has an outer short cylindrical member 79, an inner short cylindrical member 80, and a filter closing plate 81.
The inner short cylindrical members 80 are disposed in the outer short cylindrical members 79 at intervals on the inner circumferential surface of the outer short cylindrical members 79. The inner short cylindrical member 80 is disposed in the outer short cylindrical member 79 concentrically with the outer short cylindrical member 79.
The filter closing plate 81 is formed in a circular flat plate, and the lower cylindrical end of the outer short cylindrical member 79 and the lower cylindrical end of the inner short cylindrical member 80 are closed (closed) and fixed to each short cylindrical member 79, 80 Ru.

The filter lower lid 74 externally fits the outer short cylindrical member 79 from the upper cylindrical end of each short cylindrical member 79, 80 to the outer peripheral surface 71C of the cylindrical filter 71, and the inner short cylindrical member 80 in the protective cylindrical body 72. It is fitted into the circumferential surface 72 D and fixedly attached to the filter lower cylindrical end 71 B side of the cylindrical filter 71 and the lower cylindrical end 72 B side of the protective cylindrical body 72.
Thus, the filter lower cylindrical end 71 B side of the cylindrical filter 71 and the lower cylindrical end 72 B side of the protective cylindrical body 72 are disposed between the short cylindrical members 79 and 80. The filter lower cylindrical end 71 B of the cylindrical filter 71 and the lower cylindrical end 72 B of the protective cylindrical body 72 are closed (closed) by the filter closing plate 81. The filter closing plate 81 closes (closes) the entire filter lower cylindrical end 71 B of the cylindrical filter 71 and the entire lower cylindrical end 72 B of the protective cylindrical body 72, and thereby the inside of the protective cylindrical body 72 (in the cylindrical filter 71). The filter chamber 4 is divided.

The filter unit 5 is disposed in the dust collection chamber 35 (in the dust collection cylinder 12) of the dust collection and cleaning cylinder 11, as shown in FIG. 4 to FIG.
In the filter unit 5, the cylindrical center line F of the cylindrical filter 71 (the cylindrical center line G of the protective cylindrical body 72) is directed up and down (vertical direction UD), and the cylindrical center line F (cylindrical center line G) is collected. It is disposed in the dust collection chamber 35 (in the dust collection cylinder 12) at a position (coincident) with the cylinder center line B of Twelve.
The filter unit 5 has the filter upper cylindrical end 71A (filter upper lid 73) of the cylindrical filter 71 directed upward (the partition 15 side) in the vertical direction UD, and the filter lower cylindrical end 71B of the cylindrical filter 71 (filter lower lid The body 74) is disposed in the dust collection chamber 35 (in the dust collection cylinder 12) with the body 74 facing downward (the dust collection box 21 side).
The filter unit 5 is disposed in the dust collection chamber 35 (in the dust collection cylinder 12) at an interval from the peripheral walls 12C of the dust collection cylinder 12.
The filter unit 5 is disposed in the dust collection chamber 35 (in the dust collection cylinder 12) at a distance from the air shielding vertical plate 27B of the air shielding member 27.
Thereby, as shown in FIGS. 6 to 9 and FIG. 11, the cylindrical filter 71 (protective cylindrical body 72) has the cylindrical center line F (cylindrical center line G) vertically oriented (vertically UD), and The center line F (cylindrical center line G) is positioned (coincident) with the cylinder center line B of the dust collection cylinder 12 so as to be disposed in the dust collection chamber 35 (in the dust collection cylinder 12). The cylindrical filter 71 has the filter upper cylindrical end 71A upward (the partition 15 side) and the filter lower cylindrical end 71B downward in the vertical direction UD, and the inside of the dust collection chamber 35 (in the dust collection cylinder 12) Placed in). Further, the cylindrical filter 71 is disposed in the dust collection chamber 35 (in the dust collection cylinder 12) at an interval between the peripheral walls 12C of the dust collection cylinder 12. The cylindrical filter 71 is disposed in the dust collection chamber 35 (in the dust collection cylinder 12) at an interval from the air shielding vertical plate 27B of the air shielding member 27.
The cylindrical filter 71 captures dust contained in the air of the dust collection chamber 35.

  The filter unit 5 is located between the partition 15 (partition plate 37) and the dust collection box 21 in the vertical direction UD, as shown in FIG. 4 to FIG. 7 and FIG. (In the dust collection cylinder 12). The filter unit 5 is disposed in the dust collection chamber 35 (in the dust collection cylinder 12) at an interval from the filter lower lid 74 (the filter closing plate 81) and the dust collection box 21 in the vertical direction UD. .

As shown in FIGS. 4 to 6 and 11, the filter unit 5 includes the filter closing plate 77 of the filter upper lid 73 from the inside of the dust collection chamber 35 (the inside of the dust collection cylinder 12) It is airtightly supported at 37 and suspended and disposed in the dust collection chamber 35 (in the dust collection cylinder 12).
The filter unit 5 is supported by the partition plate 37 of the partition 15 with the filter outlet 78 of the filter upper lid 73 in communication with the clean outlet 17 of the partition 15.
Thereby, the cylindrical filter 71 (filter unit 5) supports the filter upper cylindrical end 71A on the partition 15 (partition plate 37), and the collection is performed with the lower cover 14 (dust collection box 21) spaced apart. It is suspended in the dust chamber 35.
In addition, the cylindrical filter 71 airtightly communicates the filter chamber 4 from the filter upper cylindrical end 71A to the air suction port 16 of the partition 15 (partition plate 37), and the inside of the dust collection chamber 35 (in the dust collection cylinder 12 Is placed hanging).
Furthermore, the filter chamber 4 in the cylindrical filter 71 (in the protective cylinder 72) is communicated with the inside of the clean chamber 36 (in the clean cylinder 13) through the filter outlet 78 and the clean outlet 17 of the filter upper lid 73. .
In addition, the filter unit 5 (cylindrical filter 71) can be taken out from the dust collection cylinder 12 with the partition 15 as shown in FIG.

<Blower 6 (blowing means)>
The blower 6 is communicated (connected) in the cleaning chamber 36 of the dust collecting and cleaning cylinder 11 (the cleaning cylinder 13) as shown in FIGS. 4, 5 and 19 to 23. The blower 6 sucks the air in the filter chamber 4 in the cylindrical filter 71 (protective cylindrical body 72). Thus, the blower 6 generates an air flow from the dust collection chamber 35 (in the dust collection cylinder 12) through the cylindrical filter 71 and the protective cylindrical body 72 (each air hole 72E) to the filter chamber 4. The blower 6 exhausts the sucked air to the outside air (outside of the dust collector body 1).

The blower 6 is, for example, a blower that sucks and discharges air by rotating a cylindrical runner (cylindrical fan) by a motor, and has a blower suction port 6A and a blower exhaust port 6B.
The blower 6 is disposed in the blower chamber 50 of the blower cylinder 18 as shown in FIGS. 4, 5 and 19 to 23. The blower 6 is installed on the blower lower cover plate 41 with the blower suction port 6A facing the blower inlet 47 in the blower chamber 50 (in the blower cylinder 18).
The blower 6 is installed on the lower cover plate 41 with the blower outlet 6B facing the blower hole 51 in the blower chamber 50 (in the blower cylinder 18).
Thereby, in the blower 6, the blower suction port 6A is communicated with the inside of the cleaning chamber 36 in the cleaning cylinder 13 through the blower inlet 47. The blower suction port 6A passes through the clean filter unit 2 (secondary filter 63) of the clean chamber 36, the clean outlet 17 of the partition 15, and the filter outlet 78 of the filter upper lid 73, 72) in communication with the filter chamber 4).
In the blower 6, the blower exhaust port 6B includes the blower hole 51, the exhaust chamber 49 of the blower cylinder 18, the exhaust inflow port 56 of the exhaust lower cover plate 55, the exhaust filter unit 3 (exhaust filter 67), and the exhaust port of the upper cover 20. 59 (air exhaust pipe 60) is communicated with the outside (outside air) of the dust collector main body 1 through 59 (air exhaust pipe 60).

  The blower 6 drives a motor to rotate a cylindrical runner (not shown), thereby sucking the air in the cleaning chamber 36 from the blower suction port 6A and exhausting the air from the blower exhaust port 6B. Generate. The air flows into the dust collection chamber 35 (in the dust collection cylinder 12) from the air suction port 16 (air suction pipe 28) by the air flow, and each air of the cylindrical filter 71 (protection cylinder 72) from the dust collection chamber 35 It passes through the hole 72 E) and flows into the filter chamber 4. The air flowing into the filter chamber 4 passes through the filter outlet 78, the clean outlet 17, the inside of the clean chamber 36 (in the clean cylinder 13), the clean filter unit 2 (secondary filter 63), and the blower inlet 47 The air is drawn into the blower 6 from the blower suction port 6A. The air sucked into the blower 6 flows out from the blower exhaust port 6 B into the exhaust cylinder 19 through the blower chamber 50, the blower hole 51, the exhaust chamber 49 and the blower exhaust port 46. The air having flowed out into the exhaust cylinder 19 is exhausted to the outside air (outside of the dust collector main body 1) from the exhaust port 59 (air exhaust pipe 60) through the exhaust filter unit 3 (exhaust filter 67).

<Dust remover 7 (Dust remover)>
The dust removal device 7 injects compressed gas in the filter chamber 4 as shown in FIGS. 43 to 46, and the inner peripheral surface 71D of the cylindrical filter 71 from the inside of the filter chamber 4 (the inner peripheral surface 72D of the protective cylindrical body 72 ) To remove dust captured by the cylindrical filter 71.

  The dust remover 7 includes a pendulum 82 (impact pendulum / pendulum means), and a pendulum support 83, as shown in FIGS.

  The pendulum 82 has a pendulum tube 84, a reinforcing tube 85, a pendulum weight 86, and a snap ring 87 as shown in FIGS.

The pendulum tube 84 is formed, for example, in a cylindrical tube. The pendulum tube 84 is made of a flexible synthetic resin tube including a silicone resin tube, for example, a flexible silicone resin tube.
The pendulum tube 84 is disposed with the tube center line M (pendulum tube center line) facing up and down (up and down direction UD), and has an upper tube end 84A and a lower tube end 84B. The pendulum tube 84 extends in the vertical direction UD.
The pendulum tube 84 has an outer diameter (outer diameter): d1, and a total tube length: L1 (a tube length between the upper and lower tube ends 84A, 84B). The outer diameter d1 of the pendulum tube 84 is smaller than the inner diameter D2 of the cylindrical filter 71.

  The reinforcing pipe 85 is formed, for example, into a metal cylindrical pipe. The reinforcing tube 85 is fitted into the pendulum tube 84 from the lower tube end 84B of the pendulum tube 84 (is fitted into the pendulum tube 84), as shown in FIGS. The reinforcing tube 85 is disposed on the lower tube end 84 B side of the pendulum tube 84 and is fixed to the pendulum tube 84.

The pendulum weight 86 is formed into, for example, a sphere. The pendulum weight 86 is, for example, a synthetic resin containing a polyurethane resin, and is made of a polyurethane resin.
The pendulum weight 86 has a tube insertion hole 86A as shown in FIG. 35, FIG. 37 and FIG. The tube insertion hole 86A penetrates the pendulum weight 86 (spherical body) in the vertical direction UD. The tube insertion hole 86A penetrates the pendulum weight 86 up and down through the ball center Z (hereinafter referred to as "center of gravity Z") of the pendulum weight 86.
The pendulum weight 86 is inserted on the lower tube end 84B side of the pendulum tube 84 into the tube insertion hole 86A and externally fitted on the lower tube end 84B side of the pendulum tube 84.
Thereby, the pendulum weight 86 is externally fitted to the pendulum tube 84 with the center of gravity Z positioned (coincident) with the tube center line M of the pendulum tube 84 and fixed to the lower tube end 84 B side of the pendulum tube 84.
The pendulum tube 84 is inserted from the lower tube end 84 B into the tube insertion hole 86 A of the pendulum weight 86 to arrange the lower tube end 84 B side of the pendulum tube 84 and the reinforcing tube 85 in the pendulum weight 86.
The pendulum weight 86 is externally fitted on the lower pipe end 84B side of the pendulum tube 84 with the weight lower end 86B being flush with the lower pipe end 84B of the pendulum tube 84.
As a result, the pendulum tube 84 is fixed to the pendulum weight 86 with the tube center line M positioned (coincident) with the center of gravity Z (ball center) of the pendulum weight 86. The ball diameter of the pendulum weight 86 is larger than the diameter of each air hole 72E of the protective cylinder 72.

  The retaining ring 87 is fitted in the tube insertion hole 86A of the pendulum weight 86 from the lower pipe end 84B (the weight lower end 86B of the pendulum weight 86) in the vertical direction UD as shown in FIGS. 37 and 38. Then, the pendulum tube 84 is externally fitted to the lower tube end 84B. The retaining ring 87 is fixed to the pendulum tube 84 and the pendulum weight 86.

The pendulum support 83 supports the pendulum 82 (the pendulum tube 84 and the pendulum weight 86) and supplies compressed gas (compressed air) to the pendulum 82 (pendulum tube 84), as shown in FIGS.
The pendulum support 83 has an air supply unit 88 and a compressed gas supply 89 as shown in FIGS. 34 to 37, 39 and 40.

The air supply unit 88 is connected to the upper end 84A of the pendulum tube 84, as shown in FIGS. The air feeding unit 88 supports the pendulum tube 84 in a swingable manner, with the pipe center on the upper tube end 84A side of the pendulum tube 84 as a first fixed point P1.
As shown in FIGS. 34 to 37, the air supply pipe unit 88 includes an air supply pipe 90, an auxiliary pendulum tube 91, an upper pipe joint 92, a lower pipe joint 93, and a solenoid valve 94.

The air supply pipe 90 is formed of, for example, a metal tube. The air supply pipe 90 is disposed above the pendulum pipe 84 at a distance from the upper pipe end 84A of the pendulum pipe 84 in the vertical direction UD, as shown in FIGS.
The air supply pipe 90 is extended from the tube center line M of the pendulum tube 84 in a direction (left-right direction LF) orthogonal to the tube center line M of the pendulum tube 84.

The auxiliary pendulum tube 91 is formed, for example, in a cylindrical tube. The auxiliary pendulum tube 91 is a synthetic resin tube including a flexible nylon resin tube harder than the hardness of the pendulum tube 84, for example, a nylon resin tube.
As shown in FIG. 34, FIG. 37 and FIG. 39, the auxiliary pendulum tube 91 has the pipe center line N (auxiliary pipe center line) directed up and down (up and down direction UD) and the pipe center line N is a pipe center of the pendulum tube 84. Positioned (coincident) with the line M, it has an upper pipe end 91A and a lower pipe end 91B. The auxiliary pendulum tube 91 is arranged concentrically to the pendulum tube 84.
The auxiliary pendulum tube 91 is disposed between the air supply pipe 90 and the upper tube end 84A of the pendulum tube 84 in the vertical direction UD. The auxiliary pendulum tube 91 extends in the vertical direction UD.
As shown in FIG. 40, the auxiliary pendulum tube 91 has an outer diameter (peripheral major axis): d2, and a total tube length: LA (a tube length between the upper and lower tube ends 91A and 91B). The outer diameter d 2 of the auxiliary pendulum tube 91 is smaller than the outer diameter d 1 of the pendulum tube 84. The total pipe length LA of the auxiliary pendulum tube 91 is a pipe length shorter than the total pipe length L1 of the pendulum tube 84.

The upper pipe joint 92 is disposed between the upper pipe end 91A of the auxiliary pendulum pipe 91 and the air supply pipe 90 in the vertical direction UD, as shown in FIGS. 34, 35, 37 and 39. The upper joint 92 is connected to the upper pipe end 91 A side of the auxiliary pendulum pipe 91 and one pipe end 90 A side (left pipe end side) of the air supply pipe 90.
The upper pipe joint 92 includes, for example, a joint body 92A and a release sleeve 92B, with the joint center line Q (upper joint center line) directed vertically (vertical direction UD) and the joint center line Q as an auxiliary pendulum tube 91 Is disposed at (coincident with) the pipe center line N of In the upper fitting 92, the release sleeve 92B is disposed in the fitting body 92A so as to be slidable in the vertical direction UD.
The upper joint 92 is connected to the air supply pipe 90 by inserting the joint body 92A into the air supply pipe 90 from one pipe end 90A (left pipe end) of the air supply pipe 90 and attaching it to the air supply pipe 90. The upper pipe joint 92 inserts the upper pipe end 91A side of the auxiliary pendulum tube 91 into the release sleeve 92B, thereby holding the upper pipe end 91A of the auxiliary pendulum tube 91 in a retaining manner. It is connected to the end 91A side.
Thus, the upper pipe joint 92 supports the auxiliary pendulum tube 91 in a swingable manner, with the pipe center on the upper tube end 91A side of the auxiliary pendulum tube 91 as the second fixing point P2.
The second fixing point P2 is a pipe center of the auxiliary pendulum pipe 91 connected to the upper pipe joint 92, as shown in FIG. 39, and a pipe center located at the joint lower end 92C of the upper pipe joint 92 in the vertical direction UD. It is.
The upper fitting 92 connects the (upper tube end 91A) of the auxiliary pendulum tube 91 to one tube end 90A of the air supply pipe 90.
In addition, in the upper side pipe joint 92, the retaining sleeve of the auxiliary pendulum tube 91 is released by pushing the release sleeve 92B into the joint body 92A. The auxiliary pendulum tube 91 can be removed from the upper fitting 92 by releasing the retaining holding by the upper fitting 92.

The lower pipe joint 93 is disposed between the upper pipe end 84A of the pendulum pipe 84 and the lower pipe end 91B of the auxiliary pendulum pipe 91 in the vertical direction UD, as shown in FIGS. 34, 35, 37 and 39. Be done. The lower pipe joint 93 is connected to the upper pipe end 84 A side of the pendulum pipe 84 and the lower pipe end 91 B side of the auxiliary pendulum pipe 91.
The lower pipe joint 93 includes, for example, a joint body 93A and a release sleeve 93B, with the joint center line R (lower joint center line) directed vertically (vertical direction UD) and the joint center line R as an auxiliary pendulum The tube 91 is disposed at (coincident with) the tube center line N of the tube 91 (the tube center line M of the pendulum tube 84). In the lower side pipe joint 93, the release sleeve 93B is disposed in the joint body 93A so as to be slidable in the vertical direction UD.
The lower pipe joint 93 is inserted into the upper pipe end 84A of the pendulum pipe 84 from the upper pipe end 84A of the pendulum pipe 84, and attached to the upper pipe end 84A of the pendulum pipe 84. Connected to The lower side pipe joint 93 inserts the lower pipe end 91B side of the auxiliary pendulum tube 91 into the release sleeve 93B, thereby holding the lower pipe end 91B side of the auxiliary pendulum tube 91 in a snap-retaining manner. Connected
As a result, the lower pipe joint 93 supports the pendulum tube 84 in a swingable manner, with the pipe center on the upper tube end 84A side of the pendulum tube 84 as the first fixed point P1.
The first fixing point P1 is a pipe center of a pendulum pipe 84 connected to the lower pipe joint 93 as shown in FIG. 39, and a pipe located at the joint lower end 93C of the lower pipe joint 93 in the vertical direction UD. It is the center.
The lower tube fitting 93 connects the pendulum tube 84 (upper tube end 84A) to the lower tube end 91B of the auxiliary pendulum tube 91.
Further, the auxiliary pendulum tube 91 is disposed to extend between the upper pipe joint 92 and the lower pipe joint 93 in the vertical direction UD.
In addition, in the lower side pipe joint 93, the auxiliary holding pendulum tube 91 is released by pushing the release sleeve 93B into the joint body 93A. The auxiliary pendulum tube 91 can be removed from the lower pipe joint 93 by releasing the holding by the lower pipe joint 93.

  The solenoid valve 94 is disposed in the air supply pipe 90 and connected to the air supply pipe 90 as shown in FIGS. The solenoid valve 94 is, for example, an on-off valve.

The compressed gas supply source 89 is connected to the air supply unit 88, and supplies compressed gas from the air supply unit 88 to the pendulum tube 84.
The compressed gas supply source 89 is connected to the air supply pipe 90 and supplies clean compressed gas (clean compressed air) to the air supply pipe 90, as shown in FIGS. The compressed gas supply source 89 includes, for example, a compressor, a pneumatic pump, etc., and is connected to the other pipe end 90 B (left pipe end side) of the air supply pipe 90 through the gas supply pipe 95.
The compressed gas supply source 89 supplies clean compressed gas (clean compressed air) to the pendulum pipe 84 through the gas supply pipe 95, the air pipe 90, the upper pipe joint 92, the auxiliary pendulum pipe 91 and the lower pipe joint 93. .

  In the dust removing device 7, the point-to-point pipe length L2 (pipe length) of the pendulum pipe 84 is set to a length exceeding the inner radius (inner circumferential radius) of the cylindrical filter 71: R2 = D1 / 2, as shown in FIG. The point-to-point pipe length L2 (pipe length) is a pipe length between the first fixed point P1 and the center of gravity Z (spherical center) of the pendulum weight in the vertical direction UD. The inter-point pipe length L2 is, for example, more than 1.0 times and less than 1.5 times the inner radius R2 of the cylindrical filter 71 (1.0 × R2 <L2 <1.5 × R2).

The dust remover 7 is shown in FIGS. 4 and 5 to 7. As shown in FIG.8, FIG.11, and FIG.41, it arrange | positions in the dust collecting and cleaning cylinder 11 (in the dust collecting cylinder 12 and the cleaning cylinder 13).
In the dust remover 7, the pendulum 82 is disposed in the filter chamber 4 in the cylindrical filter 71 (in the protective cylinder 72) suspended and disposed in the dust collection chamber 35 (in the dust collection cylinder 12).
In the pendulum 82, as shown in FIG. 41, the pendulum tube 84 points the cylinder axis center line M up and down (up and down direction UD), and the cylinder center line M is the cylinder center line F of the cylinder filter 71 (protected cylinder 72 , And is disposed in the filter chamber 4 at (coincident) with the cylindrical center line G) of The pendulum tube 84 is disposed concentrically with the cylindrical filter 71 (protective cylindrical body 72).
The pendulum tube 84 is disposed in the filter chamber 4 from the lower tube end 84 B side (pendulum weight 86 side), through the clean outlet 17 and the filter outlet 78.
Thereby, the pendulum weight 86 is disposed in the filter chamber 4 with the center of gravity Z (spherical center) positioned (coincident) with the cylindrical center line F of the cylindrical filter 71 (the cylindrical center line G of the protective cylindrical body 72). .

  The pendulum tube 84 is disposed on the filter lower lid 74 at a hanging interval L4 in the vertical direction UD, and extends in the vertical direction (vertical direction UD). The hanging distance L4 is a distance (distance) between the lower pipe end 84B of the pendulum tube 84 (the weight lower end 86B of the pendulum weight 86) and the lower filter lid 74 (filter closing plate 81) in the vertical direction UD. . The hanging distance L3 is, for example, half (L / 2) of the cylinder length L of the cylindrical filter 71.

In the air supply tube unit 88 (pendulum support 83), the air supply tube 90 is disposed in the clean room 36 (in the clean cylinder 13).
The air supply pipe 90 extends from the pipe center line M of the pendulum pipe 84 (the cylinder center line F of the cylindrical filter 71) in the radial direction (left-right direction LF) of the cylindrical filter 71. The air supply pipe 90 is supported by the clean cylinder 13 (the dust collecting and cleaning cylinder 11) in the cleaning chamber 36. The air supply pipe 90 is attached to, for example, one peripheral wall 13C (right side peripheral wall) of the clean cylinder 13 in the left-right direction LF, and is supported in a cantilever manner by the clean cylinder 13 (dust collection clean cylinder 11). The air supply pipe 90 penetrates the clean cylinder 13 (the dust collecting and cleaning cylinder 11) in the left-right direction LF and is projected to the outside of the clean cylinder 13.
Thereby, the upper pipe joint 92, the auxiliary pendulum pipe 91, the lower pipe joint 93, and the pendulum 82 (the pendulum pipe 84 and the pendulum weight 86) are cylindrical filters from one pipe end 90A of the air pipe 90 in the vertical direction UD. It is hung and arranged toward the filter lower lid 74.

<Guide cylindrical body 8 (guide means)>
The guide cylindrical body 8 guides the swinging of the pendulum tube 84. The guide cylindrical body 8 has a lower end overhanging portion 96 and a plurality of guide support flat plates 97 as shown in FIGS. 34 to 37 and 40.

The guide cylindrical body 8 is made of, for example, metal and has an upper cylindrical end 8A (guide upper cylindrical end) and a lower cylindrical end 8B (guide lower cylindrical end).
As shown in FIG. 40, the guide cylindrical body 8 has an outer diameter (outer diameter): D5 and an inner diameter (inner diameter): D6. The outer diameter D5 of the guide cylinder 8 is smaller than the inner diameter D2 of the cylindrical filter 71 and the filter outlet 78. The inner diameter D6 of the guide cylinder 8 is made larger than the tube diameter d1 (outer diameter) of the pendulum tube 84.

  The lower end overhanging portion 96 is formed on the lower cylindrical end 8 B side of the guide cylindrical body 8. The lower end overhanging portion 96 is curved while extending outward in the radial outer direction of the lower cylindrical end 8B of the guide cylindrical body 8 and the guide cylindrical body 8 and curved on the inner periphery on the lower cylindrical end 8B side of the guide cylindrical body 8 Form 96A (R-chamfer).

  Each guide support plate 97 is disposed outside the guide cylinder 8. Each guide support flat plate 97 is positioned on the upper cylindrical end 8A side of the guide cylindrical body 8, attached to the guide cylindrical body 8, and supported in a cantilever manner. Each guide support flat plate 97 extends in a direction orthogonal to the cylinder center line W (guide cylinder center line) of the guide cylinder 8.

As shown in FIGS. 4 to 7, FIG. 11, FIG. 40 and FIG. 41, the guide cylindrical body 8 turns the cylinder center line W up and down (up and down direction UD) and the tube center line W is a tube of the pendulum tube 84. It is disposed at a position (coincident) with the center line M (the cylinder center line F of the cylindrical filter 71). The guide cylinder 8 is disposed concentrically to the pendulum tube 84 (cylindrical filter 71).
The guide cylindrical body 8 is spaced apart from the inner peripheral surface 71D of the cylindrical filter 71 in the direction orthogonal to the cylindrical center line F of the cylindrical filter 71, and in the clean outlet 17, in the filter outlet 78 and in the filter chamber 4. Be placed across.
The guide cylinder 8 is externally fitted to the lower fitting 93 and the pendulum tube 84 at a distance from the lower fitting 93 and the pendulum tube 84. The guide cylindrical body 8 is inserted into the clean outlet 17 from the lower cylindrical end 8 B (lower end overhanging portion 96), and disposed in the clean outlet 17, the filter outlet 78 and the filter chamber 4.
The guide cylinder 8 is supported by the partition 15 with the guide support flats 97 placed on the partition plate 37 of the partition 15. Each guide support flat plate 97 is removably fixed to the partition flat plate 37.
Thereby, the guide cylindrical body 8 is supported by the partition 15 (partition flat plate 37) and suspended and disposed in the filter chamber 4.

As shown in FIGS. 40 and 41, in the vertical direction UD, the guide cylindrical body 8 is located at the lower cylindrical end 8B (lower end overhanging portion 96) on the lower pipe end 84B side of the pendulum tube 84 from the first fixing point P1. Are disposed in the filter chamber 4.
In the pendulum tube 84 and the guide cylindrical body 8 externally fitted to the pendulum tube 84, the inter-centroid center pipe length L5 of the pendulum tube 84 is made longer than the inner radius (inner circumferential radius) R2 of the cylindrical filter 71. The inter-centroid tube length L5 is a length between the lower cylindrical end 8B (lower end overhanging portion 96) of the guide cylindrical body 8 and the centroid Z (spherical center) of the pendulum weight 86 in the vertical direction UD.
As a result, as shown in FIGS. 40 and 41, the pendulum tube 84 has a relationship of total length L1> inter-point tube length L2> inter-centre center tube length L3.

<Control device 9>
As shown in FIG. 42, the control device 9 is connected to the blower 6 (motor), the solenoid valve 94, and the compressed gas supply source 89 (compressor, air pump).
The control device 9 is housed, for example, in the control chamber 48 of the blower cylinder 18.
The control device 9 controls the drive (stop) of the blower 6, controls the opening and closing of the solenoid valve 94, and controls the drive (stop) of the compressed gas supply source 89.

  Next, dust collection by the dust collector X and dust removal of the cylindrical filter 71 will be described with reference to the drawings.

<Dust collection by dust collector X>
As shown in FIG. 42, the control device 9 outputs a blowing signal (blowing command) to the blower 6. When the blower 6 receives a blowing signal, it rotates a cylindrical runner (not shown) and sucks the air in the cleaning cylinder 13 from the blower suction port 6A (see FIGS. 4, 5 and 23).
When air is sucked by the blower 6, air containing dust (hereinafter referred to as "dust air") is, as shown in Figs. 4, 5, 8, 11 and 23, an air suction port 16 (air It flows into the dust collection chamber 35 (in the dust collection cylinder 12) through the suction pipe 28).
Dust air flowing into the dust collection chamber 35 collides with the wind shielding horizontal plate 27A and the wind shielding vertical plate 27B of the wind shielding member 27, as shown in FIG. 4, FIG. 5, FIG. 8 and FIG. It is diffused in the upper direction of the UD and in the front and back direction of the longitudinal direction FR, and is guided between the peripheral wall 12C of the dust collection cylinder 12 and the outer peripheral surface 71C of the cylindrical filter 71.
Thus, dust air does not flow directly into the cylindrical filter 71 from the air suction port 16 and does not flow directly into the dust collection box 21.

In the dust collection chamber 35, dust air passes through the cylindrical filter 71 from the outer peripheral surface 71C of the cylindrical filter 71 as shown in FIGS. It flows into the filter chamber 4 (in the protective cylinder 72) from the hole 72E.
At this time, the cylindrical filter 71 captures dust from dust air, and the air flows out from the air holes 72E of the protective cylindrical body 72 into the filter chamber 4.

As shown in FIG. 5, FIG. 4, FIG. 11 and FIG. 23, the air flowing into the filter chamber 4 has the filter outlet 78, the clean outlet 17, the clean chamber 36, the secondary filter 63 (clean filter unit 2). The air is drawn into the blower 6 from the blower suction port 6A through the blower inlet 47.
Air flows into the secondary filter 63 through the air holes 64A of the clean filter case 64, passes through the secondary filter 63, and from the air holes 65A of the clean filter lid 65, as shown in FIG. It flows out to the blower inlet 47. At this time, the secondary filter 63 captures dust remaining in the air.

The blower 6 exhausts the sucked air into the blower chamber 50 of the blower cylinder 18 from the blower exhaust port 6B as shown in FIGS.
The air exhausted from the blower exhaust port 6B is, as shown in FIGS. 4, 5, 20, 23 and 27, the blower hole 51, the discharge chamber 49 of the blower cylinder 18, the blower discharge port 46, the exhaust flow The air is exhausted from the exhaust port 59 (air exhaust pipe 60) of the upper cover 20 to the outside air (outside of the dust collector main body 1) through the inlet 56 and the exhaust filter 67 (exhaust filter unit 3).
The air flows into the exhaust filter 67 through the air holes 66A on the lower end face of the exhaust filter case 66, passes through the exhaust filter 67, and passes through the air on the upper end face of the exhaust filter case 66, as shown in FIG. It flows out from the hole 66A to the exhaust port 59 (air exhaust pipe 60). At this time, the exhaust filter 67 captures dust remaining in the air and exhausts it as clean air from the exhaust port 59 (air exhaust pipe 60) of the upper lid 20 to the outside air (outside of the dust collector main body 1).

<Dust removal of cylindrical filter 71>
As shown in FIG. 42, the control device 9 outputs an air supply signal (air supply command) to the compressed gas supply source 89 (compressor, pneumatic pump). The compressed gas supply source 89 discharges compressed gas (clean compressed air), for example, to the gas supply pipe 95 when the air supply signal is input.
As shown in FIG. 42, the controller 9 outputs an open valve signal (open valve command) to the solenoid valve 94. When the valve opening signal is input, the solenoid valve 94 opens to communicate the compressed gas supply source 89 and the pendulum tube 84.

  The compressed air discharged to the gas supply pipe 95 is supplied to the pendulum pipe 84 through the air supply pipe 90, the upper pipe joint 92, the auxiliary pendulum pipe 91, and the lower pipe joint 93 as shown in FIG.

As shown in FIG. 44, the pendulum tube 84 jets (jets) compressed air from the lower tube end 84B in the filter chamber 4 in accordance with the supply of the compressed air. The pendulum tube 84 is swung to the inner peripheral surface 71D of the cylindrical filter 71 (inner peripheral surface 72D of the protective cylindrical body 72) by the injection of compressed air (injection force of compressed air) using the first fixed point P1 as a fulcrum Shaken).
At this time, the pendulum tube 84 swings in a direction perpendicular to the cylindrical center line F of the cylindrical filter 71 with the first fixed point P1 as a fulcrum (swing), and the amplitude F1 (the pendulum weight 86 falls within the protective cylinder 72). The amplitude that can strike the circumferential surface 72D and the inner circumferential surface 71D of the cylindrical filter 71, and the amplitude velocity V1.

As shown in FIG. 45, the auxiliary pendulum pipe 91 and the lower pipe joint 93 use the second fixing point P2 as a fulcrum, along with the inner peripheral surface 71D of the cylindrical filter 71, as the pendulum pipe 84 swings (shakes). It is shaken (swayed) on the inner circumferential surface 8C of the guide cylinder 8.
At this time, the auxiliary pendulum tube 91 swings (swings) in the same direction as the pendulum tube 84 with the second fixed point P2 as a fulcrum. Since the auxiliary pendulum tube 91 is a flexible synthetic resin tube (nylon resin tube) harder than the hardness of the pendulum tube 91, it has an amplitude F2 different from that of the pendulum tube 84 and an amplitude velocity V2. The amplitude F 2 of the auxiliary pendulum tube 91 is smaller than the amplitude F 1 of the pendulum tube 84. The amplitude velocity V 2 of the auxiliary pendulum tube 91 is slower than the amplitude velocity V 1 of the pendulum tube 84.

As shown in FIG. 44, the pendulum tube 84 is shaken (swayed) by the inner peripheral surface 71D of the cylindrical filter 71 with the first fixed point P1 as a fulcrum, and the curved surface 96A of the guide cylindrical body 8 (lower cylinder It abuts on the end 8B side).
At this time, the guide cylindrical body 8 suppresses (prevents) excessive swinging of the pendulum tube 84 in contact with the curved surface 96A (lower cylinder end 8B side), and the pendulum tube 84 is used as a filter closing plate of the filter lower lid 74. It guides to inner skin 71D of cylindrical filter 71 as a runout of fixed height position PX from 81 (filter lower cylinder end 71B of cylindrical filter 71).

The pendulum weight 86 is an inner peripheral surface 72D of the protective cylindrical body 72 at an amplitude velocity V1 and an inner peripheral surface of the cylindrical filter 71 at the amplitude velocity V1 in accordance with the swing of the pendulum tube 84 and the swing of the auxiliary pendulum tube 91 and the lower tube joint 93. Hit the 71D.
The cylindrical filter 71 (protective cylindrical body 72) is vibrated by the impact of the pendulum weight 86.
The cylindrical filter 71 and the protective cylindrical body 72 are supported by the partition 15 (the partition plate 37) and suspended in the filter chamber 4, so that they are sufficiently vibrated by the impact of the pendulum weight 86.
Thereby, the dust captured by the cylindrical filter 71 falls from the cylindrical filter 71 to the dust collection member 26 and is collected from the dust collection member 26 in the dust collection box 21.

As shown in FIG. 46, the pendulum tube 84 (the auxiliary pendulum tube 91 and the lower pipe joint 93) is configured such that, after being struck by the pendulum weight 86, the pendulum weight 86 is struck and compressed air (compressed air jetted from the lower tube end 84B). The swing direction (the swing direction / amplitude direction) is changed by the injection force of air.
As a result, the pendulum weight 86 strikes the inner peripheral surface 72D of the protective cylindrical body 72 and the inner peripheral surface 71D of the cylindrical filter 71 at a plurality of positions in the circumferential direction of the cylindrical filter. Can be removed (removal), and damage to the cylindrical filter 71 can be suppressed.
As described above, the pendulum tube 84 (the auxiliary pendulum tube 91, the lower tube joint 93) changes the swing direction (the swing direction / amplitude direction) each time the pendulum weight 86 is hit, so the cylinder protected by the pendulum weight 86 A plurality of positions (inner peripheral surfaces 72D and 71D) of the cylindrical filter 71 and the cylindrical filter 71 can be struck, and dust captured by the cylindrical filter 71 can be removed (removed) reliably and sufficiently.

The compressed air injected from the lower pipe end 84 B of the pendulum pipe 84 flows into the cylindrical filter 71 through the air holes 72 E of the protective cylindrical body 72. The compressed air passes through the cylindrical filter 71 from the inner peripheral surface 71D of the cylindrical filter 71 toward the outer peripheral surface 71C.
Thereby, the dust captured by the cylindrical filter 71 is removed from the cylindrical filter 71 by compressed air.
In particular, when the pendulum weight 86 strikes the inner circumferential surface 72D of the protective cylindrical body 72 and the inner circumferential surface 71D of the cylindrical filter 71, the lower pipe end 84B of the pendulum tube 84 is the inner circumferential surface 72D of the protective cylindrical body 72 ( The compressed gas is directly injected from the air holes 72E of the protective cylindrical body 72 directly to the inner peripheral surface of the cylindrical filter 71, as it approaches the inner peripheral surface 71D of the cylindrical filter 71 most closely.
As a result, the compressed gas injected from the lower pipe end 84B of the pendulum tube 84 does not diffuse into the filter chamber 4, and directly directs the cylindrical filter 71 from the inner peripheral surface 71D of the cylindrical filter 71 to the outer peripheral surface 71C. The dust passes from the cylindrical filter 71 sufficiently and reliably.

In the pendulum support 83, the compressed gas supply source 89 can shake (swing) the pendulum tube 84 at an amplitude F 1, and the inner peripheral surface 72 D of the protective cylindrical body 72 and the inside of the cylindrical filter 71 by the pendulum weight 86. The pressure and flow rate of the compressed air (compressed gas) supplied to the pendulum tube 84 are adjusted so that the circumferential surface 71D can be struck. The amplitude speed of the pendulum tube 84 can be appropriately changed by adjusting the pressure and flow rate of the compressed air (compressed gas) supplied to the pendulum tube 84, whereby the inner peripheral surface 72D of the protective cylindrical body 72 by the pendulum weight 86 And the force (impact force) which strikes inner skin 71D of cylindrical filter 71 can be changed.
In the dust collector X, since the pendulum weight 86 is formed into a sphere and made of polyurethane resin, the pendulum weight itself is broken even if it strikes the inner peripheral surface 72D of the protective cylindrical body 72 and the inner peripheral surface 71D of the cylindrical filter 71. (Damage) can be suppressed.

In the dust collector X, if the cylindrical filter 71 is not damaged (damaged) by the impact of the pendulum weight 86, it is not particularly necessary to provide the protective cylindrical body 72.
In the dust collector X, a configuration not provided with the guide cylindrical body 8 can also be adopted.
The dust collector X is configured to shake the pendulum tube 84 at the first and second fixed points P1 and P2. However, the present invention is not limited to this. The upper tube end 84A side of the pendulum tube 84 is A configuration may also be adopted in which it is directly connected to the upper fitting 92 and shaken (swinged) only at the first fixing point P1.

The dust collector X can be applied, for example, to collect the welding fumes of an automatic electric welder (semi-automatic electric welder). The dust collector X connects the air suction pipe 28 (air suction port 16) to the torch of the automatic electric welding machine to collect the welding fume contained in the air (captured by the cylindrical filter 71).
In addition, application of the dust collector X is not limited to an automatic electric welding machine (semi-automatic electric welding machine), It is applicable to what kind of apparatus which collects dust in air, a machine, etc.

  The present invention is most suitable for removing (removing) dust captured by a cylindrical filter.

X Dust collector 1 Dust collector body 5 Filter unit 6 Blower 7 Dust remover (dust remover)
8 Guide cylinder 9 Control device (control means)
11 dust collecting and cleaning cylinder 12 dust collecting cylinder 13 cleaning cylinder 14 lower lid 15 partition 16 air inlet 17 clean outlet

Claims (7)

Dust collection and cleaning cylinder which is disposed with the cylinder center line up and down,
A lower lid airtightly closing a lower cylinder end of the dust collection and cleaning cylinder;
The dust collection chamber is disposed between the upper cylinder end of the dust collection and cleaning cylinder and the lower cover, and in the upper and lower portions of the dust collection and cleaning cylinder, the dust collection chamber on the lower cover side, and the upper cylinder of the dust collection and cleaning cylinder. A partition that is airtightly divided from the end clean room,
An air suction port formed on a peripheral wall of the dust collecting and cleaning cylinder and opening to the dust collecting chamber,
A dust collector main body which is formed on the partition body and which includes a clean outlet which is open to the dust collection chamber and the cleaning chamber at the upper and lower sides;
A cylindrical filter which is disposed in the dust collection chamber with a cylindrical center line directed vertically and at intervals on a peripheral wall of the dust collection and cleaning cylinder, and which captures dust contained in the air of the dust collection chamber;
A filter lower lid which airtightly closes the lower cylindrical end of the cylindrical filter to define a filter chamber in the cylindrical filter;
The cylindrical filter supports the upper cylindrical end to the partition body and is suspended to the dust collection chamber at an interval to the lower lid body, and the filter chamber is cleaned from the upper cylindrical end by the filter chamber. A filter unit disposed in airtight communication with the outlet;
A blower connected to the cleaning chamber to suck air from the filter chamber to generate an air flow passing from the dust collection chamber to the filter chamber through the cylindrical filter, and exhausting the sucked air to the outside air; ,
A dust remover that jets compressed gas in the filter chamber, strikes the inner circumferential surface of the cylindrical filter from the filter chamber, and removes dust captured by the cylindrical filter;
A dust collector characterized by comprising: The dust remover is
With the pendulum,
A pendulum support for supporting the pendulum and supplying compressed gas to the pendulum;
Is configured to include
The pendulum is
A pendulum tube which is disposed in the filter chamber, with a tube center line directed vertically and at a cylindrical center line of the cylindrical filter, and which extends up and down with respect to the filter lower lid at an interval;
And a pendulum weight which is externally fitted to the lower end of the pendulum tube and located at a center line of the pendulum tube at a center of gravity of the pendulum tube, and fixed to the pendulum tube,
The pendulum support is
An air feeding unit disposed in the clean room and connected to the upper end of the pendulum tube, and swingably supporting the pendulum tube with the center of the upper end of the pendulum tube as a first fixed point;
And a compressed gas supply source connected to the gas supply unit and supplying compressed gas from the gas supply unit to the pendulum tube;
The pendulum tube is
With the supply of the compressed gas, the compressed gas is injected from the lower pipe end in the filter chamber, and is shaken on the inner circumferential surface of the cylindrical filter with the first fixed point as a fulcrum.
The pendulum weight is
The dust collector according to claim 1, characterized in that the inner peripheral surface of the cylindrical filter is hit with the swinging of the pendulum tube. In the pendulum tube, a tube length between the first fixed point and the center of gravity is
The dust collector according to claim 2, characterized in that the length exceeds the inner circumferential radius of the cylindrical filter. A guiding cylinder for guiding the swing of the pendulum tube;
The guide cylinder is
Positioned with the cylinder center line up and down and at the tube center line of the pendulum tube,
The inner peripheral surface of the cylindrical filter and the pendulum tube are externally fitted to the pendulum tube at intervals.
The lower cylindrical end of the guide cylinder is located closer to the lower end of the pendulum tube than the first fixing point,
In the pendulum tube, the tube length between the lower cylindrical end of the guide cylinder and the center of gravity is
The length exceeds the inner radius of the cylindrical filter,
The pendulum tube is
With the supply of the compressed gas, the compressed gas is jetted from the lower pipe end in the filter chamber, and is shaken on the inner peripheral surface of the cylindrical filter with the first fixed point as a fulcrum; It abuts on the lower cylindrical end side,
The pendulum weight is
The dust collector according to claim 2 or 3, wherein the inner peripheral surface of the cylindrical filter is hit with the swinging of the pendulum tube. The filter unit is
A protective cylindrical body disposed in the filter chamber with a cylindrical center line up and down;
The protective cylinder is
Have multiple air holes,
The outer circumferential surface of the protective cylindrical body is disposed in contact with the inner circumferential surface of the cylindrical filter,
Each air hole is
The inner circumferential surface of the cylindrical filter and the filter chamber in the protective cylinder are opened.
The pendulum weight is
The dust collector according to any one of claims 2 to 4, wherein the inner peripheral surface of the protective cylindrical body is hit with the swinging of the pendulum tube. The air supply unit is
An air supply pipe disposed in the cleaning chamber, extending in a radial direction of the cylindrical filter from a pipe center line of the pendulum pipe, and supported by the dust collecting and cleaning cylinder body;
An auxiliary pendulum tube disposed between the air supply pipe and the upper tube end of the pendulum tube, with a tube center line directed vertically and at a tube center line of the pendulum tube;
An upper pipe joint disposed between the upper pipe end of the auxiliary pendulum pipe and the air supply pipe and connected to the upper pipe end side of the auxiliary pendulum pipe and the air supply pipe;
A lower pipe joint disposed between the upper end of the pendulum pipe and the lower end of the auxiliary pendulum pipe and connected to the upper end of the pendulum pipe and the lower end of the auxiliary pendulum pipe; Have
The compressed gas source is
Connected to the air supply pipe, and supplying the compressed gas from the air supply pipe to the pendulum tube;
The auxiliary pendulum tube is
It consists of a flexible tube that is harder than the pendulum tube,
The upper fitting is
The auxiliary pendulum tube is swingably supported with the pipe center on the upper tube end side of the auxiliary pendulum tube as a second fixing point,
The lower pipe joint is
The pendulum tube is swingably supported with the center of the upper tube end of the pendulum tube as a first fixed point,
The pendulum tube is
With the supply of the compressed gas, the compressed gas is jetted from the lower pipe end in the filter chamber, and is shaken on the inner circumferential surface of the cylindrical filter with the first fixed point as a fulcrum.
The auxiliary pendulum tube and the lower pipe joint are
With the swing of the pendulum tube, it is shaken on the inner circumferential surface of the cylindrical filter with the second fixing point as a fulcrum,
The pendulum weight is
The dust collector according to any one of claims 2 to 4, wherein the inner peripheral surface of the cylindrical filter is hit according to the swing of the auxiliary pendulum tube, the lower pipe joint and the pendulum tube. The filter unit is
A protective cylindrical body disposed in the filter chamber with a cylindrical center line up and down;
The protective cylinder is
Have multiple air holes,
The outer circumferential surface of the protective cylindrical body is disposed in contact with the inner circumferential surface of the cylindrical filter,
Each air hole is
The inner circumferential surface of the cylindrical filter and the filter chamber in the protective cylinder are opened.
The pendulum weight is
The dust collector according to claim 6, characterized in that the inner peripheral surface of the protective cylindrical body is struck with the shaking of the auxiliary pendulum tube, the lower pipe joint and the pendulum tube.

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