CN215901972U - Pressure regulating centrifugal sieving machine - Google Patents
Pressure regulating centrifugal sieving machine Download PDFInfo
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- CN215901972U CN215901972U CN202122109719.7U CN202122109719U CN215901972U CN 215901972 U CN215901972 U CN 215901972U CN 202122109719 U CN202122109719 U CN 202122109719U CN 215901972 U CN215901972 U CN 215901972U
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Abstract
The utility model discloses a pressure-regulating centrifugal screening machine, which comprises a screening box and a centrifugal device arranged above the screening box, and is characterized in that: centrifugal device includes rotary device and throws the charging tray, rotary device's the vertical downwardly extending of rotation axis goes into screening incasement, throw the charging tray level and set up, the upper surface center of throwing the charging tray is fixed the tip of rotary device rotation axis, the upper surface of screening case has still run through feed inlet and bleed port, the feed inlet is located throw the charging tray directly over, the bleed port is connected with vacuum pump or air compressor machine through the trachea. By adopting the pressure regulating type centrifugal screening machine, the working environment of the screening box can be changed by utilizing a vacuum pump or an air compressor, the thrown distance of the powder can be adjusted, meanwhile, the rotating speed of the rotating device can be adjusted to further adjust the thrown distance of the powder, and the screening precision is improved to realize screening of fine particles.
Description
Technical Field
The utility model relates to a screening machine, in particular to a pressure regulating type centrifugal screening machine.
Background
The traditional powder screening mainly adopts screen cloth screening and air flow screening, the screened particle size is larger and can not meet the requirement of fine particle screening, according to an air resistance formula, a centrifugal force formula and a density formula, researches show that under a vacuum or high-pressure environment, the distance of thrown powder can be influenced by the size of air resistance and the size of centrifugal force, the distance of thrown powder can be changed by changing the vacuum degree of a cavity or increasing the pressure of the cavity, the distance of thrown powder can be changed by adjusting the speed of a turntable, the efficiency and the screening precision can be changed by adjusting the feeding amount, and therefore a centrifugal screening machine capable of providing a vacuum or high-pressure environment is needed.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a pressure-regulating centrifugal sieving machine, which is helpful for sieving powder under vacuum or high pressure.
The technical scheme is as follows:
the utility model provides a pressure regulating formula centrifugal screening machine, its key lies in, including screening case and the centrifugal device who installs in screening case top, its characterized in that: the centrifugal device comprises a rotating device and a material throwing disc, a rotating shaft of the rotating device vertically extends downwards into the screening box, the material throwing disc is horizontally arranged, and the center of the upper surface of the material throwing disc is fixed at the end part of the rotating shaft of the rotating device;
the upper surface of screening case has still run through feed inlet and bleed mouth, the feed inlet is located directly over the throwing charging tray, the bleed mouth is connected with vacuum pump or air compressor machine through the trachea.
The effect of adopting above scheme: the working environment of the screening box can be changed by utilizing a vacuum pump or an air compressor, the thrown distance of the powder is adjusted, meanwhile, the thrown distance of the powder can be further adjusted by adjusting the rotating speed of the rotating device, and the screening precision is improved to realize the screening of fine particles.
An installation cylinder is vertically arranged in the screening box, the upper end of the installation cylinder is fixed on the inner wall of the screening box, and a rotating shaft of the rotating device movably penetrates through the installation cylinder;
at least one positioning bearing is fixedly sleeved on a rotating shaft of the rotating device, and the edge of an outer ring of the positioning bearing is abutted against the inner wall of the mounting cylinder.
The screening incasement still is equipped with a feeding section of thick bamboo, a feeding section of thick bamboo is hourglass hopper-shaped, the macrostoma end of a feeding section of thick bamboo is up, the osculum end of a feeding section of thick bamboo is down, the macrostoma end of a feeding section of thick bamboo still horizontal covering has the upper cover plate, the macrostoma end of a feeding section of thick bamboo with the lower fixed surface of upper cover plate is connected, an installation section of thick bamboo is located in the feeding section of thick bamboo.
The outer wall of the mounting cylinder is also provided with a feeding valve cylinder, the inner wall of the feeding valve cylinder is in threaded connection with the outer wall of the mounting cylinder, a bin is formed between the feeding valve cylinder and the feeding cylinder, the edge of the upper end of the feeding valve cylinder is horizontally turned outwards to form an outer adjusting ring, and a gear ring is sleeved on the outer adjusting ring;
an adjusting motor is further arranged above the screening box, a rotating shaft of the adjusting motor vertically extends downwards into the storage bin, an adjusting gear is horizontally arranged at the end of the rotating shaft of the adjusting motor, and the adjusting gear is meshed with the gear ring;
the semi-inner diameter of the lower end of the feeding cylinder is smaller than the semi-outer diameter of the feeding valve cylinder, and a throwing port is formed between the lower end of the feeding valve cylinder and the inner wall of the feeding cylinder. The advantage of adopting above technical scheme is that the rotation axis drive of accommodate motor throw the material valve section of thick bamboo and rotate, throw the size that the material mouth can be adjusted to the in-process that the material valve section of thick bamboo reciprocated.
The material throwing disc is also provided with a material dropping barrel which is in a hollow round platform shape, the material dropping barrel is sleeved on a rotating shaft of the rotating device, the top end of the material dropping barrel is upward and is fixedly connected with the end part of the rotating shaft of the rotating device, and the edge of the lower end of the material dropping barrel is fixedly connected with the upper surface of the material throwing disc;
the radius of the lower end of the charging barrel is smaller than that of the material throwing disk, and the outer wall of the charging barrel and the upper surface of the material throwing disk are in arc transition. The advantage of adopting above technical scheme is, guarantees that the powder material at the in-process of blanking gliding along the inclined plane of blanking section of thick bamboo, reduces the floating dust.
The screening box is internally provided with a material storage device, the material storage device is formed by sequentially nesting a plurality of annular material separating cylinders, all the annular material separating cylinders are vertically arranged on the inner bottom surface of the screening box, and all the annular material separating cylinders are nested concentrically;
any both sides that the feed cylinder was separated to the annular all form the storage area, all the axial lead that the feed cylinder was separated to the annular with the axial lead coincidence of rotary device rotation axis.
Has the advantages that: the utility model can change the working environment of the screening box by using the vacuum pump or the air compressor, adjust the distance of the thrown powder, adjust the rotating speed of the rotating device to further adjust the distance of the thrown powder, and improve the screening precision to realize the screening of fine particles.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
fig. 2 is a partial enlarged view at X of fig. 1.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1 and 2, a pressure-regulating centrifugal screening machine mainly comprises a screening box 1 and a centrifugal device installed above the screening box 1, and is characterized in that: the screening box 1 is of a hollow sealing structure, the upper end of the screening box 1 is also provided with a material taking opening, an upper cover plate is horizontally buckled on the material taking opening, sealing treatment is carried out between the upper cover plate and the material taking opening, the centrifugal device comprises a rotating device 2 and a material throwing disc 3, a rotating shaft of the rotating device 2 vertically extends downwards into the screening box 1, the material throwing disc 3 is horizontally arranged, and the center of the upper surface of the material throwing disc 3 is fixed at the end part of the rotating shaft of the rotating device 2;
the upper surface of screening case 1 has still run through feed inlet 1a and bleed port 1b, feed inlet 1a is located directly over throwing charging tray 3, bleed port 1b is connected with vacuum pump or air compressor machine through the trachea.
Wherein:
a mounting cylinder 5 is vertically arranged in the screening box 1, the upper end of the mounting cylinder 5 is fixed on the inner wall of the screening box 1, and a rotating shaft of the rotating device 2 movably penetrates through the mounting cylinder 5;
at least one positioning bearing 2a is fixedly sleeved on the rotating shaft of the rotating device 2, and the edge of the outer ring of the positioning bearing 2a is tightly abutted against the inner wall of the mounting cylinder 5.
Still be equipped with a feeding section of thick bamboo 4 in the screening case 1, a feeding section of thick bamboo 4 is hourglass hopper-shaped, the macrostoma end of a feeding section of thick bamboo 4 is up, the osculum end of a feeding section of thick bamboo 4 is down, the macrostoma end of a feeding section of thick bamboo 4 still horizontal covering has an upper cover plate, the macrostoma end of a feeding section of thick bamboo 4 with the lower fixed surface of upper cover plate is connected, an installation section of thick bamboo 5 is located in a feeding section of thick bamboo 4.
The outer wall of the mounting cylinder 5 is also provided with a feeding valve cylinder 6, the inner wall of the feeding valve cylinder 6 is in threaded connection with the outer wall of the mounting cylinder 5, a bin is formed between the feeding valve cylinder 6 and the feeding cylinder 4, the edge of the upper end of the feeding valve cylinder 6 is horizontally turned outwards to form an outer adjusting ring, and a gear ring is sleeved on the outer adjusting ring;
an adjusting motor 6a is further arranged above the screening box 1, a rotating shaft of the adjusting motor 6a vertically extends into the storage bin downwards, an adjusting gear 6b is horizontally arranged at the end part of the rotating shaft of the adjusting motor 6a, and the adjusting gear 6b is meshed with the outer adjusting ring;
the axial length of the adjusting gear (6b) is greater than the thickness of the gear ring.
The semi-inner diameter of the lower end of the feeding cylinder 4 is smaller than the semi-outer diameter of the feeding valve cylinder 6, and a throwing port is formed between the lower end of the feeding valve cylinder 6 and the inner wall of the feeding cylinder 4.
The material throwing disc 3 is also provided with a material dropping barrel 3a, the material dropping barrel 3a is in a hollow circular truncated cone shape, the material dropping barrel 3a is sleeved on the rotating shaft of the rotating device, the top end of the material dropping barrel 3a faces upwards and is fixedly connected with the end part of the rotating shaft of the rotating device 2, and the edge of the lower end of the material dropping barrel 3a is fixedly connected with the upper surface of the material throwing disc 3;
the radius of the lower end of the charging barrel 3a is smaller than that of the material throwing disk 3, and the outer wall of the charging barrel 3a and the upper surface of the material throwing disk 3 are in arc transition.
The screening box 1 is also internally provided with a material storage device, the material storage device is formed by sequentially nesting a plurality of annular material separating cylinders 7, all the annular material separating cylinders 7 are vertically arranged on the inner bottom surface of the screening box 1, and all the annular material separating cylinders 7 are concentrically nested;
any both sides that the feed cylinder 7 was separated to the annular all form the storage area, all the axial lead that the feed cylinder 7 was separated to the annular with the axial lead coincidence of 2 rotation axes of rotary device.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a pressure regulating formula centrifugal screening machine, includes screening case (1) and installs the centrifugal device in screening case (1) top, its characterized in that: the centrifugal device comprises a rotating device (2) and a material throwing disc (3), a rotating shaft of the rotating device (2) vertically extends downwards into the screening box (1), the material throwing disc (3) is horizontally arranged, and the center of the upper surface of the material throwing disc (3) is fixed at the end part of the rotating shaft of the rotating device (2);
the upper surface of screening case (1) has still run through feed inlet (1a) and bleed (1b), feed inlet (1a) are located directly over throwing charging tray (3), bleed (1b) are connected with vacuum pump or air compressor machine through the trachea.
2. The pressure regulating centrifugal screening machine according to claim 1, characterized in that: an installation cylinder (5) is vertically arranged in the screening box (1), the upper end of the installation cylinder (5) is fixed on the inner wall of the screening box (1), and a rotating shaft of the rotating device (2) movably penetrates through the installation cylinder (5);
the rotating shaft of the rotating device (2) is further fixedly sleeved with at least one positioning bearing (2a), and the edge of the outer ring of the positioning bearing (2a) is abutted against the inner wall of the mounting cylinder (5).
3. The pressure regulating centrifugal screening machine according to claim 2, characterized in that: still be equipped with a feeding section of thick bamboo (4) in screening case (1), a feeding section of thick bamboo (4) are leaks hopper-shaped, the macrostoma end of a feeding section of thick bamboo (4) is up, the osculum end of a feeding section of thick bamboo (4) is down, the macrostoma end of a feeding section of thick bamboo (4) is still horizontal to be covered and is had the upper cover plate, the macrostoma end of a feeding section of thick bamboo (4) with the lower fixed surface of upper cover plate is connected, an installation section of thick bamboo (5) are located in a feeding section of thick bamboo (4).
4. The pressure regulating centrifugal screening machine according to claim 3, characterized in that: a feeding valve cylinder (6) is further arranged on the outer wall of the mounting cylinder (5), the inner wall of the feeding valve cylinder (6) is in threaded connection with the outer wall of the mounting cylinder (5), a bin is formed between the feeding valve cylinder (6) and the feeding cylinder (4), the edge of the upper end of the feeding valve cylinder (6) is horizontally turned outwards to form an outer adjusting ring, and a gear ring is sleeved on the outer adjusting ring;
an adjusting motor (6a) is further arranged above the screening box (1), a rotating shaft of the adjusting motor (6a) vertically extends into the storage bin downwards, an adjusting gear (6b) is horizontally installed at the end part of the rotating shaft of the adjusting motor (6a), and the adjusting gear (6b) is meshed with the gear ring;
the semi-inner diameter of the lower end of the feeding cylinder (4) is smaller than the semi-outer diameter of the feeding valve cylinder (6), and a throwing port is formed between the lower end of the feeding valve cylinder (6) and the inner wall of the feeding cylinder (4).
5. The pressure regulating centrifugal screening machine according to claim 4, wherein: the material throwing disc (3) is also provided with a material dropping cylinder (3a), the material dropping cylinder (3a) is in a hollow circular truncated cone shape, the material dropping cylinder (3a) is sleeved on a rotating shaft of the rotating device, the top end of the material dropping cylinder (3a) faces upwards and is fixedly connected with the end part of the rotating shaft of the rotating device (2), and the edge of the lower end of the material dropping cylinder (3a) is fixedly connected with the upper surface of the material throwing disc (3);
the radius of the lower end of the charging barrel (3a) is smaller than that of the material throwing disk (3), and the outer wall of the charging barrel (3a) and the upper surface of the material throwing disk (3) are in arc transition.
6. The pressure regulating centrifugal screening machine according to claim 5, wherein: the screening box (1) is also internally provided with a material storage device, the material storage device is formed by sequentially nesting a plurality of annular material separating barrels (7), all the annular material separating barrels (7) are vertically arranged on the inner bottom surface of the screening box (1), and all the annular material separating barrels (7) are nested concentrically;
any two sides of the annular material separating barrel (7) form a material storage area, and all the axial lines of the annular material separating barrel (7) coincide with the axial line of the rotating shaft of the rotating device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122109719.7U CN215901972U (en) | 2021-09-02 | 2021-09-02 | Pressure regulating centrifugal sieving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122109719.7U CN215901972U (en) | 2021-09-02 | 2021-09-02 | Pressure regulating centrifugal sieving machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215901972U true CN215901972U (en) | 2022-02-25 |
Family
ID=80293435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122109719.7U Active CN215901972U (en) | 2021-09-02 | 2021-09-02 | Pressure regulating centrifugal sieving machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215901972U (en) |
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2021
- 2021-09-02 CN CN202122109719.7U patent/CN215901972U/en active Active
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