CN219850609U - High-efficient screening structure is used to roller bearing sieve - Google Patents
High-efficient screening structure is used to roller bearing sieve Download PDFInfo
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- CN219850609U CN219850609U CN202320698436.7U CN202320698436U CN219850609U CN 219850609 U CN219850609 U CN 219850609U CN 202320698436 U CN202320698436 U CN 202320698436U CN 219850609 U CN219850609 U CN 219850609U
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- gear
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- 238000012216 screening Methods 0.000 title claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 11
- 238000004891 communication Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The utility model belongs to the field of roller screens, in particular to a high-efficiency screening structure for a roller screen, which aims at the problems that the distance position of an existing roller is relatively fixed, the distance of the roller cannot be adjusted, the pushing speed of materials conforming to the size is low, and the materials are easy to wear.
Description
Technical Field
The utility model relates to the technical field of roller screens, in particular to a high-efficiency screening structure for a roller screen.
Background
The roller screen is also called a cross screen, the screen surface consists of a plurality of parallel rollers on which screen discs are arranged in a staggered manner, the rollers rotate through chain wheels or the like, the rotation direction of the rollers is the same as the material flow direction, the roller screen is mainly used for screening coal initially, and the roller screen is mainly used for separating mud and stones later, and is also called a mud and stone screening machine.
The existing roller screen has a plurality of defects when in use:
1. when the conventional roller screening machine is used, the distance position of the roller is relatively fixed, the distance of the roller cannot be adjusted according to the requirement on material size screening, and the roller screening machine is not flexible to use.
2. The existing roller screen is mainly circular or gear-type, the material is pushed forwards completely by the rotation of the roller, the material pushing speed is low, and the abrasion to the material is easy to cause when the roller rotates.
Disclosure of Invention
The utility model provides a high-efficiency screening structure for a roller screen, which solves the problems that in the prior art, the distance position of a roller is relatively fixed, the distance of the roller cannot be adjusted, the pushing speed of materials conforming to the size is low, and the materials are easy to wear.
The utility model provides the following technical scheme:
the efficient screening structure for the roller screen comprises two fixing frames, wherein a plurality of rollers are rotatably connected in the two fixing frames, a first connecting sleeve is fixedly connected in the fixing frames, a plurality of hollow sleeves are rotatably connected in the fixing frames, a plurality of second connecting sleeves are slidably connected in the fixing frames, and a moving assembly for driving the second connecting sleeves to move is arranged in the fixing frames;
one side of the second connecting sleeve is fixedly connected with a connecting plate, and one side of the connecting plate is provided with an adjusting assembly for adjusting.
In a possible design, the movable assembly includes the first driving motor of fixed connection in the mount, the output shaft fixedly connected with connecting axle of first driving motor, the fixed cover of outer wall of connecting axle is equipped with a plurality of first gears, and the connecting axle rotates and runs through the mount, one side of first adapter sleeve rotates and is connected with the cylinder, the equal fixedly connected with sliding shaft of one end of a plurality of second adapter sleeves, the equal sliding sleeve of sliding shaft and cylindrical outer wall is equipped with hollow cover, the opposite side fixedly connected with connecting rod of second adapter sleeve, the outer wall of connecting rod is equipped with the screw thread, and screw thread and hollow cover threaded connection, the fixed cover of outer wall of hollow cover is equipped with the second gear, and second gear and first gear mesh.
In one possible design, the adjusting component comprises a sliding sleeve fixedly connected to one side of the connecting plate, a sliding plate is connected to the sliding sleeve in a sliding mode, a fixing rod is fixedly connected to the bottom of the sliding plate, a third gear is sleeved on the outer wall of the fixing rod in a threaded mode, the third gear is rotationally connected to the bottom of the sliding sleeve, a plurality of racks are fixedly connected to the inner wall of one side of the fixing frame, and the racks are correspondingly meshed with the third gear.
In one possible design, the first connecting sleeve and the plurality of second connecting sleeves are rotationally connected with a rotating shaft, the bottom of the fixing rod is rotationally connected with a second sprocket, one end of the roller is fixedly connected with the rotating shaft, and two adjacent rotating shafts are in transmission connection with the second sprocket through a first sprocket and a first chain.
In one possible design, a third sprocket is fixedly sleeved on the outer wall of one rotating shaft, a second driving motor is fixedly connected in the fixing frame, a fourth sprocket is fixedly sleeved on the output shaft of the second driving motor, and the fourth sprocket is in transmission connection with the third sprocket through a second chain.
In one possible design, a plurality of screening wheels are fixedly sleeved on the outer wall of each roller, a plurality of pushing surfaces are arranged on the outer wall of each screening wheel, and a plurality of arc-shaped surfaces are correspondingly arranged on the outer wall of each screening wheel.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.
According to the utility model, the distance between two adjacent rotating shafts can be adjusted by rotating the hollow sleeve, and the second chain wheel can be driven to move up and down by the mutual engagement of the third gear and the rack, so that the tightness of the first chain between the second chain wheel and the two first chain wheels is ensured, and the roller can rotate normally.
In the utility model, the outer wall of the screening wheel is provided with the arc-shaped surface and the pushing surface, and the material can be accelerated to move forward by pushing the pushing surface when the screening wheel rotates clockwise, so that the friction between the material and the surface of the screening wheel is reduced, and the material is kept more complete.
According to the utility model, the distance between two adjacent rotating shafts can be adjusted through the rotation of the hollow sleeve, and meanwhile, the second chain wheel can be driven to move up and down according to the distance between the two rotating shafts, so that the tightness of the first chain on the outer walls of the two adjacent first chain wheels and the second chain wheel can be effectively ensured, the normal rotation of the rolling shafts can be ensured, meanwhile, the material can be directly pushed through the cooperation of the pushing surfaces, the rotation of the screening wheel is reduced, and the friction on the material is caused.
Drawings
Fig. 1 is a schematic cross-sectional view of a fixing frame of a high-efficiency screening structure for a roller screen according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of a connecting shaft of a high-efficiency screening structure for a roller screen according to an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of a sliding sleeve with a high efficiency screening structure for a roller screen according to an embodiment of the present utility model;
fig. 4 is a schematic three-dimensional structure of a fourth sprocket of a high-efficiency screening structure for a roller screen according to an embodiment of the present utility model;
fig. 5 is a schematic three-dimensional structure of a high-efficiency screening wheel for a roller screen according to an embodiment of the present utility model.
Reference numerals:
1. a fixing frame; 2. a roller; 3. a connecting shaft; 4. a first gear; 5. a first driving motor; 6. a first connection sleeve; 7. a hollow sleeve; 8. a second gear; 9. a rotating shaft; 10. a first sprocket; 11. a second sprocket; 12. a connecting frame; 13. a third gear; 14. a rack; 15. a connecting rod; 16. a connecting plate; 17. a thread; 18. a sliding sleeve; 19. a second connecting sleeve; 20. a sliding shaft; 21. a sliding plate; 22. a third sprocket; 23. a second chain; 24. a second driving motor; 25. a fourth sprocket; 26. a pushing surface; 27. an arc surface; 28. a screening wheel; 29. a first chain.
Detailed Description
Embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.
In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present utility model are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present utility model, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present utility model.
In embodiments of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In the embodiment of the present utility model, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
Example 1
Referring to fig. 1-2, a high-efficiency screening structure for a roller screen comprises two fixing frames 1, wherein a plurality of rollers 2 are rotationally connected to the two fixing frames 1, a first connecting sleeve 6 is fixedly connected to the fixing frames 1, a plurality of hollow sleeves 7 are rotationally connected to the fixing frames 1, a plurality of second connecting sleeves 19 are rotationally connected to the fixing frames 1, a moving assembly for driving the second connecting sleeves 19 to move is arranged in the fixing frames 1, a connecting plate 16 is fixedly connected to one side of the second connecting sleeves 19, and an adjusting assembly for adjusting is arranged on one side of the connecting plate 16.
The moving assembly in the fixing frame 1 of the technical scheme can achieve the technical effect of driving the second connecting sleeve 19 to move in the fixing frame, and the adjusting assembly on one side of the connecting plate 16 can achieve the technical effect of adjusting up and down along with the movement of the second connecting sleeve 19.
Referring to fig. 2, the moving assembly includes a first driving motor 5 fixedly connected in a fixing frame 1, an output shaft of the first driving motor 5 is fixedly connected with a connecting shaft 3, an outer wall fixing sleeve of the connecting shaft 3 is provided with a plurality of first gears 4, the connecting shaft 3 rotates to penetrate through the fixing frame 1, one side of a first connecting sleeve 6 rotates to be connected with a cylinder, one ends of a plurality of second connecting sleeves 19 are fixedly connected with a sliding shaft 20, the sliding shaft 20 is provided with a hollow sleeve 7 in a sliding sleeve manner with the outer wall of the cylinder, the other side of the second connecting sleeve 19 is fixedly connected with a connecting rod 15, the outer wall of the connecting rod 15 is provided with threads 17, the threads 17 are in threaded connection with the hollow sleeve 7, the outer wall fixing sleeve of the hollow sleeve 7 is provided with a second gear 8, and the second gear 8 is meshed with the first gear 4.
According to the technical scheme, the output shaft of the first driving motor 5 drives the connecting shaft 3 to rotate, the connecting shaft 3 drives the plurality of first gears 4 to rotate, the first gears 4 are respectively meshed with the second gears 8 on the outer wall of the hollow sleeve 7, the hollow sleeve 7 rotates in the fixing frame 1, the hollow sleeve 7 rotates, the connecting rod 15 slides in the hollow sleeve 7 through the threads 17, and the technical effect that the connecting rod 15 drives the second connecting sleeve 19 to move can be achieved.
Referring to fig. 3, the adjusting assembly includes a sliding sleeve 18 fixedly connected to one side of the connecting plate 16, a sliding plate 21 is slidably connected to the sliding sleeve 18, a fixed rod 12 is fixedly connected to the bottom of the sliding plate 21, a third gear 13 is sleeved on the outer wall of the fixed rod 12 in a threaded manner, the third gear 13 is rotatably connected to the bottom of the sliding sleeve 18, a plurality of racks 14 are fixedly connected to the inner wall of one side of the fixing frame 1, and the racks 14 are correspondingly meshed with the third gear 13.
According to the technical scheme, the connecting rod 15 drives the sliding sleeve 18 to move, the sliding plate 21 at the bottom drives the third gear 13 to rotate on one side of the rack 14, and the technical effect that the third gear 13 rotates to drive the fixed rod 12 to move up and down can be achieved.
Example 2
Referring to fig. 1-2, a high-efficiency screening structure for a roller screen comprises two fixing frames 1, wherein a plurality of rollers 2 are rotationally connected to the two fixing frames 1, a first connecting sleeve 6 is fixedly connected to the fixing frames 1, a plurality of hollow sleeves 7 are rotationally connected to the fixing frames 1, a plurality of second connecting sleeves 19 are rotationally connected to the fixing frames 1, a moving assembly for driving the second connecting sleeves 19 to move is arranged in the fixing frames 1, a connecting plate 16 is fixedly connected to one side of the second connecting sleeves 19, and an adjusting assembly for adjusting is arranged on one side of the connecting plate 16.
The moving assembly in the fixing frame 1 of the technical scheme can achieve the technical effect of driving the second connecting sleeve 19 to move in the fixing frame, and the adjusting assembly on one side of the connecting plate 16 can achieve the technical effect of adjusting up and down along with the movement of the second connecting sleeve 19.
Referring to fig. 2, the moving assembly includes a first driving motor 5 fixedly connected in a fixing frame 1, an output shaft of the first driving motor 5 is fixedly connected with a connecting shaft 3, an outer wall fixing sleeve of the connecting shaft 3 is provided with a plurality of first gears 4, the connecting shaft 3 rotates to penetrate through the fixing frame 1, one side of a first connecting sleeve 6 rotates to be connected with a cylinder, one ends of a plurality of second connecting sleeves 19 are fixedly connected with a sliding shaft 20, the sliding shaft 20 is provided with a hollow sleeve 7 in a sliding sleeve manner with the outer wall of the cylinder, the other side of the second connecting sleeve 19 is fixedly connected with a connecting rod 15, the outer wall of the connecting rod 15 is provided with threads 17, the threads 17 are in threaded connection with the hollow sleeve 7, the outer wall fixing sleeve of the hollow sleeve 7 is provided with a second gear 8, and the second gear 8 is meshed with the first gear 4.
According to the technical scheme, the output shaft of the first driving motor 5 drives the connecting shaft 3 to rotate, the connecting shaft 3 drives the plurality of first gears 4 to rotate, the first gears 4 are respectively meshed with the second gears 8 on the outer wall of the hollow sleeve 7, the hollow sleeve 7 rotates in the fixing frame 1, the hollow sleeve 7 rotates, the connecting rod 15 slides in the hollow sleeve 7 through the threads 17, and the technical effect that the connecting rod 15 drives the second connecting sleeve 19 to move can be achieved.
Referring to fig. 3, the adjusting assembly includes a sliding sleeve 18 fixedly connected to one side of the connecting plate 16, a sliding plate 21 is slidably connected to the sliding sleeve 18, a fixed rod 12 is fixedly connected to the bottom of the sliding plate 21, a third gear 13 is sleeved on the outer wall of the fixed rod 12 in a threaded manner, the third gear 13 is rotatably connected to the bottom of the sliding sleeve 18, a plurality of racks 14 are fixedly connected to the inner wall of one side of the fixing frame 1, and the racks 14 are correspondingly meshed with the third gear 13. According to the technical scheme, the connecting rod 15 drives the sliding sleeve 18 to move, the sliding plate 21 at the bottom drives the third gear 13 to rotate on one side of the rack 14, and the technical effect that the third gear 13 rotates to drive the fixed rod 12 to move up and down can be achieved.
Referring to fig. 2, the first connecting sleeve 6 and the plurality of second connecting sleeves 19 are rotatably connected with a rotation shaft 9, the bottom of the fixing rod 12 is rotatably connected with a second sprocket 11, one end of the roller 2 is fixedly connected with the rotation shaft 9, and two adjacent rotation shafts 9 and the second sprocket 11 are in transmission connection through a first sprocket 10 and a first chain 29.
In the above technical scheme, the rotation of the plurality of rotation shafts 9 is performed by the transmission connection of the adjacent two first chain wheels 10 and second chain wheels 11 and the first chain 29, so that the technical effect of synchronous rotation can be achieved.
Referring to fig. 2, a third sprocket 22 is fixedly sleeved on the outer wall of one of the rotating shafts 9, a second driving motor 24 is fixedly connected in the fixing frame 1, a fourth sprocket 25 is fixedly sleeved on the output shaft of the second driving motor 24, and the fourth sprocket 25 is in transmission connection with the third sprocket 22 through a second chain 23.
According to the technical scheme, the output shaft of the second driving motor 24 drives the fourth sprocket 25 to rotate, and the fourth sprocket 25 is in transmission connection with the third sprocket 22 through the second chain 23, so that the technical effect of providing kinetic energy for the rotation of the rotating shaft 9 can be achieved.
Referring to fig. 5, a plurality of screening wheels 28 are fixedly sleeved on the outer walls of the plurality of rollers 2, a plurality of pushing surfaces 26 are arranged on the outer walls of the screening wheels 28, and a plurality of arc surfaces 27 are correspondingly arranged on the outer walls of the screening wheels 28.
The above technical solution can achieve the technical effect of pushing the sieved material forward when the pushing surface 26 of the outer wall of the sieving wheel 28 rotates.
However, as well known to those skilled in the art, the working principles and wiring methods of the first driving motor 5 and the second driving motor 24 are common, and they are all conventional means or common knowledge, and will not be described herein in detail, and any choice can be made by those skilled in the art according to their needs or convenience.
The working principle and the using flow of the technical scheme are as follows: the output shaft of the second driving motor 24 drives the fourth sprocket 25 to rotate, the fourth sprocket 25 is connected with the third sprocket 22 through the second chain 23 in a transmission manner, the third sprocket 22 drives the rotating shafts 9 to rotate, the rotating shafts 9 are connected with the first chains 29 in a transmission manner through two adjacent first sprockets 10 and second sprockets 11 to rotate, when the distance between the rotating shafts 9 needs to be adjusted, the first driving motor 5 is started, the output shaft of the first driving motor 5 drives the connecting shaft 3 to rotate, the connecting shaft 3 drives the first gears 4 to rotate, the first gears 4 are meshed with the second gears 8 on the outer wall of the hollow sleeve 7 respectively, the hollow sleeve 7 rotates in the fixing frame 1, the hollow sleeve 7 rotates, the connecting rod 15 slides in the hollow sleeve 7 through threads 17, the connecting rod 15 drives the second connecting sleeve 19 to move, the second connecting sleeve 19 drives the corresponding rotating shafts 9 to move, accordingly the distance between the rotating shafts 9 is adjusted, when the connecting rod 15 moves, the sliding sleeve 18 is driven by the sliding plate 21 at the bottom to drive the third gears 13 to rotate on one side of the rack 14, the third gears 13 rotate to drive the fixed rod 12 to move up and down, and the first tightness of the chain is adjusted.
The present utility model is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present utility model, and the changes or substitutions are intended to be covered by the scope of the present utility model; embodiments of the utility model and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (6)
1. The efficient screening structure for the roller screen is characterized by comprising two fixing frames (1), wherein a plurality of rollers (2) are rotationally connected to the two fixing frames (1), a first connecting sleeve (6) is fixedly connected to the inside of each fixing frame (1), a plurality of hollow sleeves (7) are rotationally connected to the inside of each fixing frame (1), a plurality of second connecting sleeves (19) are slidingly connected to the inside of each fixing frame (1), and a moving assembly for driving the second connecting sleeves (19) to move is arranged in each fixing frame (1);
one side of the second connecting sleeve (19) is fixedly connected with a connecting plate (16), and one side of the connecting plate (16) is provided with an adjusting component for adjusting.
2. The efficient screening structure for a roller screen according to claim 1, wherein the moving assembly comprises a first driving motor (5) fixedly connected in a fixing frame (1), an output shaft of the first driving motor (5) is fixedly connected with a connecting shaft (3), a plurality of first gears (4) are fixedly sleeved on the outer wall of the connecting shaft (3), the connecting shaft (3) rotates to penetrate through the fixing frame (1), one side of the first connecting sleeve (6) is rotationally connected with a cylinder, one ends of a plurality of second connecting sleeves (19) are fixedly connected with a sliding shaft (20), the sliding shaft (20) and the outer wall of the cylinder are fixedly connected with a connecting rod (15) in a sliding mode, threads (17) are formed on the outer wall of the connecting rod (15), the threads (17) are in threaded connection with the hollow sleeve (7), a second gear (8) is fixedly sleeved on the outer wall of the hollow sleeve (7), and the second gear (8) is meshed with the first gear (4).
3. The efficient screening structure for a roller screen according to claim 1, wherein the adjusting assembly comprises a sliding sleeve (18) fixedly connected to one side of the connecting plate (16), a sliding plate (21) is connected in a sliding manner to the sliding sleeve (18), a fixing rod (12) is fixedly connected to the bottom of the sliding plate (21), a third gear (13) is sleeved on the outer wall of the fixing rod (12) in a threaded manner, the third gear (13) is rotatably connected to the bottom of the sliding sleeve (18), a plurality of racks (14) are fixedly connected to the inner wall of one side of the fixing frame (1), and the racks (14) are correspondingly meshed with the third gear (13).
4. A high-efficiency screening structure for a roller screen according to claim 3, wherein the first connecting sleeve (6) and the plurality of second connecting sleeves (19) are respectively and rotatably connected with a rotating shaft (9), the bottom of the fixing rod (12) is rotatably connected with a second sprocket (11), one end of the roller (2) is fixedly connected with the rotating shaft (9), and two adjacent rotating shafts (9) and the second sprocket (11) are in transmission connection through a first sprocket (10) and a first chain (29).
5. The efficient screening structure for a roller screen according to claim 4, wherein a third sprocket (22) is fixedly sleeved on the outer wall of one rotating shaft (9), a second driving motor (24) is fixedly connected in the fixing frame (1), a fourth sprocket (25) is fixedly sleeved on the output shaft of the second driving motor (24), and the fourth sprocket (25) is in transmission connection with the third sprocket (22) through a second chain (23).
6. The efficient screening structure for the roller screen according to claim 1, wherein a plurality of screening wheels (28) are fixedly sleeved on the outer walls of the rollers (2), a plurality of pushing surfaces (26) are arranged on the outer walls of the screening wheels (28), and a plurality of arc-shaped surfaces (27) are correspondingly arranged on the outer walls of the screening wheels (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320698436.7U CN219850609U (en) | 2023-04-03 | 2023-04-03 | High-efficient screening structure is used to roller bearing sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320698436.7U CN219850609U (en) | 2023-04-03 | 2023-04-03 | High-efficient screening structure is used to roller bearing sieve |
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| Publication Number | Publication Date |
|---|---|
| CN219850609U true CN219850609U (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320698436.7U Active CN219850609U (en) | 2023-04-03 | 2023-04-03 | High-efficient screening structure is used to roller bearing sieve |
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| CN (1) | CN219850609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117358570A (en) * | 2023-12-07 | 2024-01-09 | 新乡市昆仑筛分机械设计有限公司 | Roller screen |
-
2023
- 2023-04-03 CN CN202320698436.7U patent/CN219850609U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117358570A (en) * | 2023-12-07 | 2024-01-09 | 新乡市昆仑筛分机械设计有限公司 | Roller screen |
| CN117358570B (en) * | 2023-12-07 | 2024-02-27 | 新乡市昆仑筛分机械设计有限公司 | Roller screen |
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