CN103611439A - Dust generator - Google Patents
Dust generator Download PDFInfo
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- CN103611439A CN103611439A CN201310633333.3A CN201310633333A CN103611439A CN 103611439 A CN103611439 A CN 103611439A CN 201310633333 A CN201310633333 A CN 201310633333A CN 103611439 A CN103611439 A CN 103611439A
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- base
- dust
- dispersion
- guide rod
- vertical spacing
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Abstract
The invention discloses a dust generator. The dust generator comprises a base, a dispersion chamber, a powder block conveying device and a dust dispersion device, wherein the dispersion chamber is formed in the base and provided with an air inlet and a dust outlet, a powder block inlet is formed in the bottom of the dispersion chamber, the powder block conveying device comprises a vertical charging barrel installed at the bottom of the dispersion chamber, an inner chamber of the charging barrel is communicated with the dispersion chamber through the powder block inlet, a piston is arranged in the charging barrel and driven by a piston driving device which is fixed on the base, the dust dispersion device comprises a dispersion brush and a dispersion brush driving device, the dispersion brush is horizontally and rotatably installed in the dispersion chamber, and the dispersion brush driving device is fixed on the base and drives the dispersion brush to rotate. The dust generator can be used for uniformly and stably generating dust, and is especially suitable for being used in a low-concentration dust simulator.
Description
Technical field
The present invention relates to a kind of dust generation device for simulating dust environment.
Background technology
Environmental simulation technology is a new marginal technology, mainly studies the imageneering technology of various natural environments and the experimental technique of product under simulated environment; Ground environment analog machine mainly contains following a few class: low temperature environment simulation, hot environment simulation, hygrothermal environment simulation, solar irradiation simulation, sand dust environmental simulation, rain environmental simulation, dipping simulation, sour environment simulation, the simulation of explosive atmospheric environment, the environmental simulation of accumulated ice/sleet and mould environmental simulation etc.Once can be in interior environment reliability test, degree of accuracy correction or the long duration test etc. of carrying out product after some environment simulations out.The equipment so at present temporarily not have for the simulation of dust atmosphere, the dust generation impact that in dust generator, air-flow can be to internal reservoir, thus it is uncontrollable to make to produce the concentration of dust, and the generation of dust cannot guarantee relatively consistent.Particularly dust concentration requires 0.01～20mg/m
3low concentration dust generation device, its generation is more prone to change, more wayward
Summary of the invention
Technical problem to be solved by this invention is: a kind of dust generation device is provided, and the generation dust that this dust generation device can be uniform and stable, is especially applicable to using in low concentration dust analogue means.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of dust generation device, comprise base, dispersing chamber, powder piece conveying device, dust dispersal device, described dispersing chamber is arranged on base, this dispersing chamber is provided with air inlet and dust mouth, and the bottom of dispersing chamber is provided with powder block entrance; Described powder piece conveying device comprises the vertical barrel that is installed on dispersing chamber bottom, and the inner chamber of this barrel is communicated with dispersing chamber by powder block entrance, in described barrel, is provided with piston, and this piston drives with the piston driver being fixed on base; Described dust dispersal device comprises that disperseing brush and dispersion brush drive unit, this dispersion brush to horizontally rotate is installed in dispersing chamber, and this dispersion brush drive unit is fixed on base and drives dispersion brush to rotate.
As a kind of preferred scheme, described piston driver comprises drive motors, decelerator, screw-nut body, the leading screw of described screw-nut body vertically rotates and is installed on base, vertically align with piston in the upper end of this leading screw, the nut rotation of this screw-nut body is installed on base, drive motors and decelerator are installed on base, output shaft and the reducer input shaft of drive motors are in transmission connection, reducer output shaft and nut are in transmission connection, on described base, be installed on vertical spacing guide rod, on described leading screw, be installed with positioning disk, on this positioning disk, be provided with the limiting section rotating with vertical spacing guide rod engagement limits leading screw.
As a kind of preferred scheme, described vertical spacing guide rod is detachably installed on base, on described base, be provided with the He Xia hole, upper hole of being convenient to vertical spacing guide rod plug-in mounting, described vertical spacing guide rod vertically runs through He Xia hole, hole, the bottom of described vertical spacing guide rod is provided with ladder axial region, and this ladder axial region is plugged in lower hole.
As a kind of preferred scheme, on described reducer output shaft, be provided with active synchronization wheel, on base, be rotatablely equipped with driven synchronizing wheel, described nut is fixed on driven synchronizing wheel with one heart, between described active synchronization wheel and driven synchronizing wheel, is provided with Timing Belt.
As a kind of preferred scheme, the stopper slot that described limiting section is open loop, the number of this stopper slot be a plurality of and circumference uniform distribution on positioning disk, described vertical spacing guide rod is in one of them stopper slot.
Adopted after technique scheme, effect of the present invention is: 1. in this dust generation device, adopt powder piece conveying device to carry, disperse brush and powder piece end contact to brush out dust, compare current loose powder lot feeding, produce concentration stable and uniform more, the air-flow in dispersing chamber can not produce any impact to powder piece, thereby realized, need how many dust, accurately brush is how many to disperse brush, and can be applicable to producing micro-dust, makes to produce Dust Capacity more accurate; 2. this dust generation device disperses the stabilization of speed of brush controlled, moving up of piston carry controlledly, make so powder piece and the unit interval of disperseing brush interiorly contact consistency of thickness, thereby the output Dust Capacity in the unit interval can accurately be controlled.In sum, the generation dust that this dust generation device can be uniform and stable, is especially applicable to using in low concentration dust analogue means.
Again because described vertical spacing guide rod is detachably installed on base, on described base, be provided with the He Xia hole, upper hole of being convenient to vertical spacing guide rod plug-in mounting, described vertical spacing guide rod vertically runs through He Xia hole, hole, the bottom of described vertical spacing guide rod is provided with ladder axial region, this ladder axial region is plugged in lower hole, therefore, the speed moving up due to leading screw is very low, therefore the rotating speed that drive motors rotates by decelerator drive nut is very little, after powder piece in barrel is finished so, need leading screw to retreat downwards, even if now drive motors energetic start up is to maximum, the reset of leading screw also may need several hours even for more time, now, drive motors can be stopped, vertical spacing guide rod is extracted out separated with positioning disk, like this, leading screw rotates freely whereabouts under the drive of himself gravity and positioning disk gravity, thereby can complete fast reset, save time.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the embodiment of the present invention;
In accompanying drawing: 1. base; 2. dispersing chamber; 3. disperse brush; 4. barrel; 5. piston; 6. powder piece; 7. disperse brush motor; 8. drive motors; 9. decelerator; 10. active synchronization is taken turns; 11. driven synchronizing wheels; 12. leading screws; 13. nuts; 14. positioning disks; 15. vertical spacing guide rods.
The specific embodiment
Below by specific embodiment, the present invention is described in further detail.
When working after installing with this dust generation device, upper and lower, left and right described in the present invention determine.
As shown in Figure 1, a kind of dust generation device, comprise base 1, dispersing chamber 2, powder piece 6 conveying devices, dust dispersal device, this base 1 comprises lower bottom base and the superposed upper bed-plate that is positioned at bottom, described dispersing chamber 2 is arranged on base 1, is specifically fixed on upper bed-plate, and this dispersing chamber 2 is provided with air inlet and dust mouth, this dust mouth is preferably level, and the bottom of dispersing chamber 2 is provided with powder piece 6 entrances; Described powder piece 6 conveying devices comprise the vertical barrel 4 that is installed on dispersing chamber 2 bottoms, the inner chamber of this barrel 4 is communicated with dispersing chamber 2 by powder piece 6 entrances, in described barrel 4, be provided with piston 5, this piston 5 drives with piston 5 drive units that are fixed on base 1; During use, the powder piece 6 of pre-pressing is tucked in the inner chamber of barrel 4, wherein, barrel 4 is cylindric, thereby this powder piece 6 is also cylindric and adaptive with inner chamber size; Described powder piece 6 is that dry coal dust, talcum powder or other the suitable powder dust particle precommpression after filtering with 200 order sieves forms.
Described dust dispersal device comprises that disperseing brush 3 and dispersion brush 3 drive units, this dispersion brush 3 to horizontally rotate is installed in dispersing chamber 2, and these dispersion brush 3 drive units are fixed on base 1 and drive dispersion brush 3 to rotate.These dispersion brush 3 drive units are a dispersion brush motor 7, and this dispersion brush motor 7 is horizontally disposed with and is connected with disperseing the central shaft driven of brush 3.
Described piston 5 drive units comprise drive motors 8, decelerator 9, leading screw 12 nut 3 mechanisms, the leading screw 12 of described leading screw 12 nut 3 mechanisms vertically rotates and is installed on base 1, vertically align with piston 5 in the upper end of this leading screw 12, the upper end of leading screw 12 can pushing tow piston 5, the nut 3 of these leading screw 12 nut 3 mechanisms rotates and is installed on base 1, drive motors 8 and decelerator 9 are installed on base 1, specifically install on lower bottom base, the output shaft of drive motors 8 and decelerator 9 power shafts are in transmission connection, decelerator 9 output shafts and nut 3 are in transmission connection, its concrete kind of drive is: on described decelerator 9 output shafts, be provided with active synchronization wheel 10, on base 1, be rotatablely equipped with driven synchronizing wheel 11, described nut 3 is fixed on driven synchronizing wheel 11 with one heart, between described active synchronization wheel 10 and driven synchronizing wheel 11, be provided with Timing Belt.Driven synchronizing wheel 11 rotates and is installed on base 1 and is enclosed within on leading screw 12, and the lower surface of driven synchronizing wheel 11 and nut 3 are fixing.This nut 3 is a swivel nut, and this swivel nut is threaded with leading screw 12 and rotates and is installed on base 1, and the upper-lower position of swivel nut is retrained by base 1.
On described base 1, be installed on vertical spacing guide rod 15, on described leading screw 12, be installed with positioning disk 4, on this positioning disk 4, be provided with the limiting section rotating with vertical spacing guide rod 15 engagement limits leading screws 12.Described limiting section is the stopper slot of open loop, the number of this stopper slot be a plurality of and circumference uniform distribution on positioning disk 4, described vertical spacing guide rod 15 is in one of them stopper slot.Like this, when drive motors 8 drives nut 3 rotation, the positioning disk 4 on leading screw 12 is by vertical spacing guide rod 15 restrictions, thereby leading screw 12 cannot, with nut 3 rotations, can only vertically move.This stopper slot also available spacing hole substitutes.
Wherein, described vertical spacing guide rod 15 is detachably installed on base 1, on described base 1, be provided with the He Xia hole, upper hole of being convenient to vertical spacing guide rod 15 plug-in mountings, on this, hole and lower Kong Jun are arranged on lower bottom base 1, and vertically aim at, described vertical spacing guide rod 15 vertically runs through He Xia hole, hole, and the bottom of described vertical spacing guide rod 15 is provided with ladder axial region, and this ladder axial region is plugged in lower hole.
Operation principle of the present invention is: first the powder piece 6 pressing is in advance tucked in barrel 4, then start drive motors 8 and disperse brush motor 7, drive motors 8 drives leading screw 12 to move progressively pushing tow piston 5 on slowly after decelerator 9, thereby the upper surface of powder piece 6 is progressively contacted with disperseing brush 3, realize kicking up of dust, and pass into compressed air in dispersing chamber 2, this dust is discharged.Disperse brush 3 Dust Capacity of kicking up to determine according to the feeding speed of powder piece 6, still, this error of kicking up between Dust Capacity and the feeding amount of powder piece 6 is very little, in prescribed limit.After whole powder piece 6 is all finished using, stop drive motors 8 and disperse brush motor 7, extract vertical spacing guide rod 15, leading screw 12 self gravity and the gravity of positioning disk 4 drive under vertically rotation fall to leaving barrel 4.
Claims (5)
1. a dust generation device, it is characterized in that: comprise base, dispersing chamber, powder piece conveying device, dust dispersal device, described dispersing chamber is arranged on base, and this dispersing chamber is provided with air inlet and dust mouth, and the bottom of dispersing chamber is provided with powder block entrance; Described powder piece conveying device comprises the vertical barrel that is installed on dispersing chamber bottom, and the inner chamber of this barrel is communicated with dispersing chamber by powder block entrance, in described barrel, is provided with piston, and this piston drives with the piston driver being fixed on base; Described dust dispersal device comprises that disperseing brush and dispersion brush drive unit, this dispersion brush to horizontally rotate is installed in dispersing chamber, and this dispersion brush drive unit is fixed on base and drives dispersion brush to rotate.
2. a kind of dust generation device as claimed in claim 1, it is characterized in that: described piston driver comprises drive motors, decelerator, screw-nut body, the leading screw of described screw-nut body vertically rotates and is installed on base, vertically align with piston in the upper end of this leading screw, the nut rotation of this screw-nut body is installed on base, drive motors and decelerator are installed on base, output shaft and the reducer input shaft of drive motors are in transmission connection, reducer output shaft and nut are in transmission connection, on described base, be installed on vertical spacing guide rod, on described leading screw, be installed with positioning disk, on this positioning disk, be provided with the limiting section rotating with vertical spacing guide rod engagement limits leading screw.
3. a kind of dust generation device as claimed in claim 2, it is characterized in that: described vertical spacing guide rod is detachably installed on base, on described base, be provided with the He Xia hole, upper hole of being convenient to vertical spacing guide rod plug-in mounting, described vertical spacing guide rod vertically runs through He Xia hole, hole, the bottom of described vertical spacing guide rod is provided with ladder axial region, and this ladder axial region is plugged in lower hole.
4. a kind of dust generation device as claimed in claim 3, it is characterized in that: on described reducer output shaft, be provided with active synchronization wheel, on base, be rotatablely equipped with driven synchronizing wheel, described nut is fixed on driven synchronizing wheel with one heart, between described active synchronization wheel and driven synchronizing wheel, is provided with Timing Belt.
5. a kind of dust generation device as claimed in claim 2, is characterized in that: the stopper slot that described limiting section is open loop, the number of this stopper slot be a plurality of and circumference uniform distribution on positioning disk, described vertical spacing guide rod is in one of them stopper slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310633333.3A CN103611439B (en) | 2013-12-02 | 2013-12-02 | A kind of dust generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310633333.3A CN103611439B (en) | 2013-12-02 | 2013-12-02 | A kind of dust generation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103611439A true CN103611439A (en) | 2014-03-05 |
| CN103611439B CN103611439B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310633333.3A Active CN103611439B (en) | 2013-12-02 | 2013-12-02 | A kind of dust generation device |
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| CN (1) | CN103611439B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0670484A1 (en) * | 1994-03-01 | 1995-09-06 | Amherst Process Instruments, Inc. | Dry powder dispersion system |
| CN2882774Y (en) * | 2005-09-30 | 2007-03-28 | 清华大学 | Solid particle aerosol producer |
| CN201171966Y (en) * | 2008-04-10 | 2008-12-31 | 杭州电子科技大学 | Quantification dust generating device |
| CN203591706U (en) * | 2013-12-02 | 2014-05-14 | 张家港朗亿机电设备有限公司 | Dust producing device |
-
2013
- 2013-12-02 CN CN201310633333.3A patent/CN103611439B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0670484A1 (en) * | 1994-03-01 | 1995-09-06 | Amherst Process Instruments, Inc. | Dry powder dispersion system |
| CN2882774Y (en) * | 2005-09-30 | 2007-03-28 | 清华大学 | Solid particle aerosol producer |
| CN201171966Y (en) * | 2008-04-10 | 2008-12-31 | 杭州电子科技大学 | Quantification dust generating device |
| CN203591706U (en) * | 2013-12-02 | 2014-05-14 | 张家港朗亿机电设备有限公司 | Dust producing device |
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| Publication number | Publication date |
|---|---|
| CN103611439B (en) | 2016-05-04 |
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