CN110723568B - Balance weight adjustable self-balancing device for dust suppression - Google Patents
Balance weight adjustable self-balancing device for dust suppression Download PDFInfo
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- CN110723568B CN110723568B CN201911167598.2A CN201911167598A CN110723568B CN 110723568 B CN110723568 B CN 110723568B CN 201911167598 A CN201911167598 A CN 201911167598A CN 110723568 B CN110723568 B CN 110723568B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/181—Preventing escape of dust by means of sealed systems
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Abstract
The invention provides a counter weight adjustable self-balancing device for dust suppression, which comprises a material dredging component and a fan blade manual opening component, wherein the material dredging component comprises a material dredging unit, a dustproof fan blade, a counter weight block, a frame, a shaft sleeve and a threaded pin shaft, the frame is in a symmetrical welding structure in a shape like a Chinese character 'mu', two end faces of the material dredging unit are fixedly connected with vertical plates on two sides of the frame respectively, the dustproof fan blade consists of a short grid plate and a long grid plate, a U-shaped through hole of the counter weight block is fixedly connected with the short grid plate of the dustproof fan blade through a bolt, the shaft sleeve of the dustproof fan blade is connected with a threaded hole in the vertical plate of the frame through the threaded pin shaft, the fan blade manual opening component comprises a rotating handle, a rotating rod, a tensioning rope and a snap spring, the rotating rod is welded with the rotating handle, a first. The dustproof fan blade adopts an asymmetric design, so that the blanking area is greatly increased, and the dustproof fan blade can be detached, thereby providing convenience for debugging and later maintenance.
Description
Technical Field
The invention relates to the technical field of material loading and unloading equipment, in particular to a counter weight adjustable self-balancing device for dust suppression.
Background
Hoppers are typically mounted at the front and rear ends of equipment such as crushers, belt conveyors, etc. for temporary storage of powdered or granular materials. The high-speed airflow extruded by the loose powdery or granular materials and the air under the mutual shearing action drives dust to fly around, and a large amount of dust is generated and diffused to the surrounding environment when the falling material impacts the ground due to the large fall of the materials. The mass of dust particles is small, and the settling speed is slow, so that the settling needs to be continued for a period of time, and the smaller particle size is in a floating state for a long time. Some dust is inflammable, has potential explosion hazard and harms the health of operators, pollutes the atmospheric environment, and simultaneously, a large amount of dust is elegant and causes economic loss.
At present, a large amount of dust is generated when materials are poured into a hopper or a material pit in the discharging process of a port, and the reason is that air with the same volume is replaced when the materials enter a closed space, so that dust generated in the discharging process is brought out by diffused air flow, serious pollution is caused, and the wind blowing season is particularly prominent. Dust pollution, harm to the atmosphere and the surrounding environment, cause environmental disputes, harm to the health of operators, damage to the social image of enterprises and potential safety hazards.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the counter weight adjustable self-balancing device for dust suppression, which increases the blanking area by utilizing the asymmetric design of the dustproof fan blades, has good sealing performance, achieves good dust suppression effect and improves the working environment of workers.
The invention provides a counterweight adjustable self-balancing device for dust suppression, which comprises a material dredging component and a fan blade manual opening component. The material dredging component comprises a material dredging unit, a first dustproof fan blade, a second dustproof fan blade, a balancing weight, dust baffles, a frame, a shaft sleeve, a threaded pin shaft and a bolt, wherein the frame is in a symmetrical welding structure in a shape like a Chinese character 'mu', the frame is composed of four vertical plates and two vertical plates, an included angle between each vertical plate and the corresponding vertical plate is 90 degrees, the vertical plates are provided with threaded holes, the material dredging unit is in a symmetrical L-shaped welding structure in shape and composed of two identical dust baffles, an included angle between the two dust baffles is 90 degrees, two end faces of the material dredging unit are respectively fixedly connected with the vertical plates on two sides of the frame, the first dustproof fan blade and the second dustproof fan blade are both composed of a short grid plate and a long grid plate, the short grid plate of the first dustproof fan blade and the short grid plate of the second dustproof fan blade are both provided with U-shaped through holes, and the shaft sleeve is arranged on the grid plate faces of the first dustproof fan blade and the second dustproof fan blade, the balancing weight is fixedly connected with the U-shaped through hole of the first dustproof fan blade short grid plate and the U-shaped through hole of the second dustproof fan blade short grid plate through the bolts respectively, and the shaft sleeve of the first dustproof fan blade and the shaft sleeve of the second dustproof fan blade are connected with the threaded hole in the frame vertical plate through the threaded pin shaft respectively. The assembly is opened manually to flabellum, it includes manual structure of opening, twist grip, rotary rod, first taut rope, the taut rope of second and jump ring, manual structure of opening is located under the material is dredged the unit, the position department that the frame riser is the same is equipped with the through-hole, the first end of rotary rod pass the through-hole of first riser with twist grip welded fastening, the second end of rotary rod passes the through-hole of second riser and third riser respectively and passes through the jump ring is connected with the through-hole of fourth riser, the jump ring is located respectively the rotary rod with the junction of frame riser through-hole, pass through the axial position of jump ring fixed the rotary rod, the first end of first taut rope with the first end of second taut rope with the rotary rod is connected, the second end of first taut rope with the second taut rope second end respectively with the short grid tray of first dustproof flabellum with the dustproof fan of second The short grid plates of the leaves are fixedly connected.
Preferably, the two side dust boards of the material leading unit are parallel to the long grid plate of the first dustproof fan blade and the long grid plate of the second dustproof fan blade respectively when in a balanced position, and the two side dust boards of the material leading unit are on the same side with the long grid plate of the first dustproof fan blade and the long grid plate of the second dustproof fan blade respectively.
Preferably, the symmetry plane of the material dredging unit is parallel to the vertical plate of the frame, the normal of the material dredging unit is perpendicular to the vertical plate of the frame, the ridge lines of the material dredging unit are at the same height, the material dredging unit is equidistantly and parallelly distributed, and the ridge lines of the material dredging unit and the axis of the dust-proof fan blade are parallel to each other.
Preferably, the first dustproof fan blade with the dustproof fan blade of second about the unit symmetric distribution is dredged to the material, first dustproof fan blade with the dustproof fan blade of second is asymmetric structure, long grid tray with contained angle between the short grid tray is 90 degrees, forms the structure that the cross-section is the L type through the welding, the U type through-hole of the short grid tray of first dustproof fan blade with the crisscross distribution in position of the U type through-hole of the short grid tray of the dustproof fan blade of second can avoid producing under the compact structure condition and collide the interference.
Preferably, the axis of the shaft sleeve is parallel to the ridge line of the first dustproof fan blade and the ridge line of the second dustproof fan blade, and the axis of the threaded pin shaft, the axis of the shaft sleeve and the axis of the threaded hole in the vertical plate of the frame are on the same straight line.
Preferably, the length of the material dredging unit is equal to that of the frame vertical plate, the total length of the dustproof fan blades is equal to that of the material dredging unit, the length of the balancing weight is equal to that of the dustproof fan blade short grid plate, the number of the shaft sleeves, the number of the threaded pin shafts and the number of the threaded holes in the frame vertical plate are equal, and the number of the dustproof fan blades, the number of the balancing weight and the number of the bolts are equal.
Compared with the prior art, the invention has the following advantages:
the invention has simple structure, the used parts are all common mechanical parts, the disassembly, the assembly and the maintenance are convenient, the manufacturing cost is low, the operation is easy, and the invention can adapt to different application occasions; the dustproof fan blades in the device can rotate along with the shaft, are opened only when materials flow out, are restored to be balanced by self gravity after the materials flow out, the hopper is closed again, and dust is limited to circulate in the inner area of the hopper, so that the escape of dust particles in the hopper is reduced, and a good dust suppression effect is achieved; the dustproof fan blade adopts an asymmetric design, so that the blanking area is greatly increased, material accumulation is avoided, the dustproof fan blade can be detached, the position of the balancing weight can be adjusted, and convenience is provided for debugging and later maintenance; the manual fan blade opening structure can enable the dustproof fan blades to be balanced quickly, and the fan blades can be opened manually conveniently at any time.
Drawings
FIG. 1 is a front view of a counterweight adjustable self-balancing apparatus for dust suppression of the present invention closed;
FIG. 2 is a front view of the self-balancing apparatus with adjustable counterweight for dust suppression of the present invention open;
FIG. 3 is a bottom view of the whole adjustable self-balancing device for dust suppression of the present invention;
FIG. 4 is a top view of the whole of the counterweight adjustable self-balancing device for dust suppression of the present invention;
FIG. 5 is a schematic structural view of a dustproof fan blade of a counterweight adjustable self-balancing device for dust suppression according to the present invention; and
fig. 6 is a schematic structural view of a fan blade manual opening assembly of a counterweight adjustable self-balancing device for dust suppression according to the present invention.
The main reference numbers:
unit 1 is dredged to the material, first dustproof flabellum 2, the dustproof flabellum 3 of second, balancing weight 4, dust guard 5, frame 6, axle sleeve 7, threaded pin axle 8, bolt 9, manual opening structure 10, twist grip 11, rotary rod 12, first taut rope 13, the taut rope 14 of second, jump ring 15.
Detailed Description
The technical contents, structural features, attained objects and effects of the present invention are explained in detail below with reference to the accompanying drawings.
A counterweight adjustable self-balancing device for dust suppression is shown in figures 1 and 6 and comprises a material dredging component and a fan blade manual opening component. The material dredging component, as shown in fig. 2, includes a material dredging unit 1, a first dustproof fan blade 2, a second dustproof fan blade 3, a balancing weight 4, a dust guard 5, a frame 6, a shaft sleeve 7, a threaded pin 8 and a bolt 9.
As shown in fig. 4, the appearance of frame 6 is mesh font symmetry welded structure, comprises four risers and two risers, and the contained angle between riser and the riser is 90 degrees, is equipped with the screw hole on the riser for the installation of the dustproof flabellum of first dustproof flabellum 2 and second 3, and the interval that the dustproof flabellum of multiunit was arranged is opened and can not form the material and flow backward as the standard with the flabellum can be safe.
As shown in fig. 3, the appearance of unit 1 is dredged to the material is the L type welded structure of symmetry, constitute by two the same dust boards 5, the contained angle is 90 degrees between two dust boards 5, the both ends face of unit 1 is dredged to the material respectively with frame 6's both sides riser fixed connection, dredged the effect to the material, the long grid tray with first dustproof flabellum 2 of material water conservancy diversion and the dustproof flabellum 3 of second is opened by the rotation, the material falls into hopper or material pit, the dust that effectively blocks the gap between short grid tray and the frame 6 edge and cause simultaneously spills over.
As shown in fig. 5, the first dustproof blade 2 and the second dustproof blade 3 are both composed of a short grid plate and a long grid plate, the short grid plate of the first dustproof blade 2 and the short grid plate of the second dustproof blade 3 are both provided with U-shaped through holes, two end faces of the first dustproof blade 2 and the second dustproof blade 3 are provided with shaft sleeves 7, the balancing weight 4 is respectively installed at the short grid plate sides of the first dustproof blade 2 and the second dustproof blade 3 and can adjust the position, so that the natural balance of the short grid plate and the long grid plate of the first dustproof blade 2 and the second dustproof blade 3 after the materials flow out is realized, the first dustproof blade 2 and the second dustproof blade 3 play a dustproof role, the balancing weight 4 is respectively fixedly connected with the U-shaped through holes of the short grid plate of the first dustproof blade 2 and the U-shaped through holes of the short grid plate of the second dustproof blade 3 through bolts 9 and can adjust the position, so as to change the gravity center of the balancing, thereby change moment, realize the balance adjustment of dustproof flabellum, the axle sleeve 7 of first dustproof flabellum 2 and the axle sleeve 7 of the dustproof flabellum 3 of second are connected through the screw hole on 8 and the 6 risers of frame of threaded pin axle respectively.
The manual blade opening assembly, as shown in fig. 6, includes a manual opening structure 10, a rotating handle 11, a rotating rod 12, a first tightening rope 13, a second tightening rope 14 and a clamp spring 15, and can achieve manual forced opening when the blades cannot be opened naturally or permanent opening when dust suppression is not required.
The manual opening structure 10 is located right below the material dredging unit 1, a through hole is arranged at the same position of a vertical plate of the frame 6, a first end of a rotary rod 12 passes through the through hole of a first vertical plate and is welded and fixed with a rotary handle 11, a second end of the rotary rod 12 respectively passes through the through holes of a second vertical plate and a third vertical plate and is connected with the through hole of a fourth vertical plate through a snap spring 15, the snap springs 15 are respectively located at the connecting positions of the rotary rod 12 and the through hole of the vertical plate of the frame 6, the axial position of the rotary rod 12 is fixed through the snap springs 15, a first end of a first tensioning rope 13 and a first end of a second tensioning rope 14 are connected with the rotary rod 12, a second end of the first tensioning rope 13 and a second end of the second tensioning rope 14 are respectively fixedly connected with a short grid plate of a first dustproof fan blade 2 and a short grid plate of a second dustproof fan blade 3, and the first tensioning rope 13 and, thereby driving the first dustproof fan blade 2 and the second dustproof fan blade 3 to rotate to open the long grid plate; the first tensioning rope 13 and the second tensioning rope 14 have a function of restraining the rotation of the first dustproof fan blade 2 and the second dustproof fan blade 3, so that the first dustproof fan blade 2 and the second dustproof fan blade 3 can be quickly reset during operation.
The first tightening rope 13 and the second tightening rope 14 are in a loose state when the first dustproof fan blade 2 and the second dustproof fan blade 3 are naturally balanced or opened, that is, the first dustproof fan blade 2 and the second dustproof fan blade 3 are not pulled by the first tightening rope 13 and the second tightening rope 14. When the materials flow out, the first dustproof fan blade 2 and the second dustproof fan blade 3 restore to the balance process, the first tensioning rope 13 and the second tensioning rope 14 can prevent the first dustproof fan blade 2 and the second dustproof fan blade 3 from rotating in the opposite directions, so that the first dustproof fan blade 2 and the second dustproof fan blade 3 can quickly reach balance, and when the equipment needs to manually operate the first dustproof fan blade 2 and the second dustproof fan blade 3, the rotating handle 11 can rotate once to open the first dustproof fan blade 2 and the second dustproof fan blade 3.
The manual fan blade opening assembly can be used for manually opening the long grid plate of the dustproof fan blade when the dustproof fan blade cannot be normally opened or does not need to work, the first dustproof fan blade 2 and the second dustproof fan blade 3 can be opened simultaneously by the manual opening structure, and the tensioning rope in the manual opening structure 10 can assist the dustproof fan blade to quickly restore balance during work.
As shown in fig. 3, the two side dust boards 5 of the material guiding unit 1 are parallel to the long grid plate of the first dustproof fan blade 2 and the long grid plate of the second dustproof fan blade 3 respectively when in the equilibrium position, and the two side dust boards 5 of the material guiding unit 1 are on the same side as the long grid plate of the first dustproof fan blade 2 and the long grid plate of the second dustproof fan blade 3 respectively.
The symmetry plane of the material dredging unit 1 is parallel to the vertical plate of the frame 6, the normal line of the material dredging unit 1 is perpendicular to the vertical plate of the frame 6, the ridge line of the material dredging unit 1 is at the same height, the material dredging units 1 are distributed in parallel at equal intervals, and the ridge line of the material dredging unit 1 and the axis of the dustproof fan blade are parallel to each other.
First dustproof flabellum 2 and the dustproof flabellum 3 of second dredge unit 1 symmetric distribution about the material, as shown in fig. 5, first dustproof flabellum 2 and the dustproof flabellum 3 of second are asymmetric structure, and the contained angle between long grid tray and the short grid tray is 90 degrees, forms the structure that the cross-section is the L type through the welding, and the crisscross distribution in position of the U type through-hole of the short grid tray of the dustproof flabellum 3 of the U type through-hole of the short grid tray of the dustproof flabellum of first dustproof flabellum 2 and second can avoid producing under the compact structure condition and collide the interference.
The axis of axle sleeve 7 is parallel to each other with the ridge of first dustproof flabellum 2 and the ridge of the dustproof flabellum 3 of second respectively, the axis of screw thread round pin axle 8, the axis of screw hole is on same straight line on the axis of axle sleeve 7 and the 6 risers of frame, guarantee good axiality, the position and the quantity of screw hole are all confirmed according to the height and the quantity of dustproof flabellum, screw thread round pin axle 8 passes through threaded connection and fixes on frame 6, simultaneously screw thread round pin axle 8 penetrates in dustproof flabellum both ends welded axle sleeve 7, accomplish being connected between dustproof flabellum and the frame 6, this kind of connection form can make dustproof flabellum rotatory around screw thread round pin axle 8, and when screw thread round pin axle 8 lift off, dustproof flabellum also can easily dismantle.
The length of unit 1 is dredged to the material equals with the length of 6 risers of frame, and the total length of dustproof flabellum equals with the length of unit 1 is dredged to the material, and the length of balancing weight 4 equals with the length of the short grid tray of dustproof flabellum, and the quantity of screw hole equals on the quantity of axle sleeve 7, the quantity of threaded pin axle 8 and the 6 risers of frame, and the quantity of dustproof flabellum, the quantity of balancing weight 4 and the quantity of bolt 9 equal.
The invention further describes a balance weight adjustable self-balancing device for dust suppression in combination with the following embodiments:
the balance weight adjustable self-balancing device for dust suppression is mainly applied to the unloading process of port granular materials such as soybeans poured into a hopper or a material pit. Rotatable dustproof flabellum opens only when the blanking in the device, resets after the material flow to reduce the interior dust particle of hopper and escape outward. Asymmetric dustproof fan blade makes blanking area greatly increased, has effectively avoided the material to pile up. The manual fan blade opening assembly can enable the dustproof fan blades to be balanced quickly, and the fan blades can be opened manually conveniently at any time. The implementation process comprises the following steps:
the self-balancing device with adjustable counter weight for pressing down dirt is installed in the upper portion opening position of discharge hopper or discharge pit etc. and makes dust suppression device's first dustproof flabellum 2 and the dustproof flabellum 3 of second keep natural balance through adjusting the position of balancing weight 4, and that is the plane that first dustproof flabellum 2 and the dustproof flabellum 3 of second each focus and ridge line constitute is along the gravity direction, and at this moment whole hopper or material pit are in airtight state, and the atmospheric pressure in hopper or the material pit is the same with external atmospheric pressure, does not have pressure differential, and whole system is in natural balance state.
First dustproof flabellum 2 and the dustproof flabellum 3 of second are located the below that the unit 1 was dredged to the material, when the material was emptyd, the material stream was dredged the unit 1 and is shunted the dustproof flabellum 2 of first dustproof flabellum 2 and the dustproof flabellum 3 of second of both sides by the material, the material is leaned on the dead weight and is made the dustproof flabellum 3 of first dustproof flabellum 2 and second rotatory around threaded pin axle 8, thereby open the discharge opening, the material begins to fall into hopper or material hole, dust in the material also gets into hopper or material hole simultaneously, if there is not any measure, because the material that has got into airtight space can replace the air of the same volume, the dust can follow the.
After the materials are poured, the first dustproof fan blade 2 and the second dustproof fan blade 3 are quickly restored to a balanced state by the combined action of the dead weight and the first tensioning rope 13 and the second tensioning rope 14, the outlet of the hopper is sealed, the air flow is prevented from flowing out, and dust is diffused and circulated in the sealed hopper space, so that the speed of the air flow is reduced, the capability of carrying the dust to escape is reduced, and the effect of suppressing dust is achieved.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.
Claims (6)
1. The utility model provides a self-balancing unit with adjustable counter weight for pressing down dirt, its includes that the material dredges subassembly and flabellum manual opening subassembly, its characterized in that possesses:
the material dredging component comprises a material dredging unit, a first dustproof fan blade, a second dustproof fan blade, a balancing weight, dust baffles, a frame and a shaft sleeve, wherein the frame is of a symmetrical welding structure in a shape like a Chinese character 'mu', and consists of four vertical plates and two vertical plates, an included angle between each vertical plate and each vertical plate is 90 degrees, the vertical plates are provided with threaded holes, the material dredging unit is of a symmetrical L-shaped welding structure and consists of two identical dust baffles, an included angle between each two dust baffles is 90 degrees, two end faces of the material dredging unit are respectively fixedly connected with the vertical plates on two sides of the frame, the first dustproof fan blade and the second dustproof fan blade are both composed of a short grid plate and a long grid plate, the short grid plate of the first dustproof fan blade and the short grid plate of the second dustproof fan blade are both provided with U-shaped through holes, and the two end faces of the first fan blade and the second dustproof fan blade are provided with the shaft sleeve, the balancing weight is fixedly connected with the U-shaped through hole of the first dustproof fan blade short grid plate and the U-shaped through hole of the second dustproof fan blade short grid plate through bolts respectively, and the shaft sleeve of the first dustproof fan blade and the shaft sleeve of the second dustproof fan blade are connected with the threaded hole in the frame vertical plate through threaded pin shafts respectively; and
the manual fan blade opening assembly comprises a manual opening structure, a rotating handle, a rotating rod, a first tensioning rope, a second tensioning rope and a clamp spring, wherein the manual opening structure is located under the material dredging unit, a through hole is formed in the position where the frame vertical plate is the same, the first end of the rotating rod penetrates through the through hole of the first vertical plate and is welded and fixed with the rotating handle, the second end of the rotating rod penetrates through the through holes of the second vertical plate and the third vertical plate respectively and is connected with the through hole of the fourth vertical plate through the clamp spring, the clamp spring is located at the joint of the rotating rod and the through hole of the frame vertical plate respectively, the axial position of the rotating rod is fixed through the clamp spring, the first end of the first tensioning rope and the first end of the second tensioning rope are connected with the rotating rod, and the second end of the first tensioning rope and the second tensioning rope are respectively connected with the short grid plate of the first dustproof fan blade and the short grid plate of the second dustproof fan blade The short grid plates are fixedly connected.
2. The balance weight adjustable self-balancing device for suppressing dust according to claim 1, wherein the dust-blocking plates at both sides of the material dredging unit are parallel to the long grid plate of the first dust-proof fan blade and the long grid plate of the second dust-proof fan blade respectively when in the balance position, and the dust-blocking plates at both sides of the material dredging unit are on the same side as the long grid plate of the first dust-proof fan blade and the long grid plate of the second dust-proof fan blade respectively.
3. The balance weight adjustable self-balancing device for suppressing dust of claim 1, wherein the symmetry plane of the material dredging unit is parallel to the vertical plate of the frame, the normal of the material dredging unit is perpendicular to the vertical plate of the frame, the ridge lines of the material dredging unit are at the same height, the material dredging unit is distributed in parallel and equidistant, and the ridge line of the material dredging unit and the axis of the dust-proof fan blade are parallel to each other.
4. The adjustable self-balancing device of counter weight for suppressing dust of claim 1, wherein the first dustproof blade and the second dustproof blade are symmetrically distributed about the material dredging unit, the first dustproof blade and the second dustproof blade are asymmetric structures, the included angle between the long grid plate and the short grid plate is 90 degrees, a structure with an L-shaped section is formed by welding, and the U-shaped through holes of the short grid plate of the first dustproof blade and the U-shaped through holes of the short grid plate of the second dustproof blade are distributed in a staggered manner, so that collision interference can be avoided when the structure is compact.
5. The adjustable self-balancing device of counter weight for suppressing dust of claim 4, wherein the axis of the shaft sleeve is parallel to the ridgeline of the first dust-proof fan blade and the ridgeline of the second dust-proof fan blade, and the axis of the threaded pin, the axis of the shaft sleeve and the axis of the threaded hole on the vertical plate of the frame are on the same straight line.
6. The adjustable self-balancing device of balance weight for suppressing dust of claim 1 or 5, wherein the length of the material dredging unit is equal to the length of the vertical plate of the frame, the total length of the dustproof fan blades is equal to the length of the material dredging unit, the length of the counter weight is equal to the length of the short grid plate of the dustproof fan blades, the number of the shaft sleeves, the number of the threaded pins and the number of the threaded holes on the vertical plate of the frame are equal, and the number of the dustproof fan blades, the number of the counter weight and the number of the bolts are equal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911167598.2A CN110723568B (en) | 2019-11-25 | 2019-11-25 | Balance weight adjustable self-balancing device for dust suppression |
| JP2020189669A JP6995963B2 (en) | 2019-11-25 | 2020-11-13 | Counterweight for dust control Adjustable self-balancing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911167598.2A CN110723568B (en) | 2019-11-25 | 2019-11-25 | Balance weight adjustable self-balancing device for dust suppression |
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| CN110723568A CN110723568A (en) | 2020-01-24 |
| CN110723568B true CN110723568B (en) | 2020-12-29 |
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| CN114096090B (en) * | 2021-11-17 | 2022-08-19 | 南通茂业电子科技有限公司 | Anti-collision type electric permanent magnetic chuck controller |
| CN114713341B (en) * | 2022-03-14 | 2023-04-18 | 宜春万申制药机械有限公司 | Solid medicine whole grain equipment |
| CN114751097A (en) * | 2022-04-08 | 2022-07-15 | 武汉理工大学 | Dust suppression hopper |
| CN118172893B (en) * | 2024-05-11 | 2024-09-03 | 南通市新隆玻璃制品有限公司 | Alarm device for glassware processing |
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| JP2021084713A (en) | 2021-06-03 |
| CN110723568A (en) | 2020-01-24 |
| JP6995963B2 (en) | 2022-01-17 |
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