CN213255557U - Aggregate screening plant is used in road bridge construction - Google Patents
Aggregate screening plant is used in road bridge construction Download PDFInfo
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- CN213255557U CN213255557U CN202021587104.4U CN202021587104U CN213255557U CN 213255557 U CN213255557 U CN 213255557U CN 202021587104 U CN202021587104 U CN 202021587104U CN 213255557 U CN213255557 U CN 213255557U
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Abstract
The utility model discloses an aggregate screening plant is used in road bridge construction, its technical scheme is: including screening case, first screening region, second screening region, third screening region, fourth screening region, waste material transmission band, master gear, pinion and motor, screening incasement portion upper end is equipped with first screening region, screening incasement portion upper end is equipped with the second screening region, be equipped with in the middle of the screening incasement portion the third screening region, screening incasement portion lower extreme is equipped with the fourth screening region, screening incasement portion bottom is equipped with the waste material transmission band, first screening region the second screening region the third screening region with the regional outer wall surface of fourth screening cup joints the master gear with inside the pinion, screening case left end is equipped with the motor, the beneficial effects of the utility model are that: and various aggregates are screened simultaneously, so that the aggregates are screened more accurately.
Description
Technical Field
The utility model relates to a road bridge construction field, concretely relates to aggregate screening plant is used in road bridge construction.
Background
Sandstone aggregate refers to a granular loose material which plays a role in framework or filling in concrete and has important application in the production of cement concrete, asphalt concrete, road foundation, railway ballast, mortar and the like.
The aggregate particle size can be divided into two types, namely coarse aggregate and fine aggregate, wherein the coarse aggregate refers to rock particles with the particle size of more than 4.75mm, such as pebbles, broken stones and the like, and the fine aggregate refers to rock particles with the particle size of less than 4.75mm, such as river sand, mountain sand, sea sand and the like.
The prior art has the following defects: the screening of the existing aggregate screening device for road and bridge construction is not accurate enough, so that the screened aggregate is not pure, the screening specification is fixed, and the coarse aggregate and the fine aggregate cannot be screened simultaneously.
Therefore, the invention is necessary to provide an aggregate screening device for road and bridge construction.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides an aggregate screening plant is used in road bridge construction, through first screening region, second screening region, third screening region and fourth screening region surface cup joint master gear and pinion, divide the interval of master gear with the pinion to solve the screening accurate enough and can not sieve the problem of coarse aggregate and fine aggregate simultaneously.
In order to achieve the above object, the present invention provides the following technical solutions: an aggregate screening device for road and bridge construction comprises a screening box, a first screening area, a second screening area, a third screening area, a fourth screening area, a waste material transmission belt, a main gear, a secondary gear and a motor, wherein the first screening area is arranged at the upper end inside the screening box, the second screening area is arranged at the upper end inside the screening box, the third screening area is arranged in the middle inside the screening box, the fourth screening area is arranged at the lower end inside the screening box, the waste material transmission belt is arranged at the bottom end inside the screening box, the outer wall surfaces of the first screening area, the second screening area, the third screening area and the fourth screening area are sleeved inside the main gear and the secondary gear, and the motor is arranged at the left end of the screening box;
-the first screening zone (2) comprises a first shaft (21), -the second screening zone (3) comprises a second shaft (31), -the third screening zone (4) comprises a third shaft (41), -the fourth screening zone (5) comprises a fourth shaft (51), -the scrap conveyor (6) comprises a shaft (61);
the upper end of the interior of the screening box is fixed with the first shaft rod through a shaft pin, the upper end of the interior of the screening box is fixed with the second shaft rod through a shaft pin, the middle of the interior of the screening box is fixed with the third shaft rod through a shaft pin, the lower end of the interior of the screening box is fixed with the fourth shaft rod through a shaft pin, and the bottom end of the interior of the screening box is fixed with the shaft rod through a shaft pin;
the outer walls of the first shaft rod, the second shaft rod, the third shaft rod and the fourth shaft rod are sleeved with the main gear and the pinion;
the main gear comprises a first main gear and trapezoidal teeth, the first main gear is sleeved on the outer walls of the first shaft rod, the second shaft rod, the third shaft rod and the fourth shaft rod, and the trapezoidal teeth are arranged on the peripheral surface of the first main gear;
the motor output end is connected with the shaft lever, the right end of the motor is sleeved with a belt, and the belt is sleeved with the first shaft lever, the second shaft lever, the third shaft lever, the fourth shaft lever and the left end of the outer wall of the shaft lever.
Preferably, the top end of the screening box is provided with a feeding port.
Preferably, the right-hand member in first screening region is equipped with first discharge gate, the right-hand member in second screening region is equipped with the second discharge gate, the right-hand member in third screening region is equipped with the third discharge gate, the right-hand member in fourth screening region is equipped with the fourth discharge gate, the right-hand member of waste material transmission band is equipped with the waste material discharge gate.
Preferably, the right ends of the first discharge port, the second discharge port, the third discharge port, the fourth discharge port and the waste discharge port are inclined downwards.
Preferably, the spacing between the surfaces of the first screening region and the second screening region of the main gear is 8-10CM, the spacing between the surfaces of the second screening region and the third screening region of the main gear is 3-4CM, and the spacing between the surfaces of the fourth screening region of the main gear is 1-2 CM.
Preferably, the main gear further includes a second main gear and tapered teeth, the second main gear is sleeved on the outer walls of the first shaft rod, the second shaft rod, the third shaft rod and the fourth shaft rod, and the tapered teeth are arranged on the peripheral surface of the second main gear.
Compared with the prior art, this aggregate screening plant for road bridge construction's advantage:
the utility model discloses a spacing of first master gear on first screening regional surface is 8-10CM, the spacing of first master gear on second screening regional surface is 5-7CM, the spacing of first master gear on third screening regional surface is 3-4CM, the spacing of first master gear on fourth screening regional surface is 1-2CM, first master gear passes through the pinion control spacing, plays the effect of screening aggregate size, thereby reaches the effect of many times screening;
drive the axostylus axostyle through the motor and rotate to make the waste material transmission band handle waste material work, through the transmission of waste material transmission band, convey the coarse aggregate to the waste material discharge gate, carry out the ejection of compact, play the effect of waste material conveying, thereby reach the effect of the waste material ejection of compact.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 provided by the present invention;
fig. 2 is a left side view of the overall structure of embodiment 1 provided by the present invention;
fig. 3 is a schematic view of a pinion gear according to embodiment 1 of the present invention;
fig. 4 is a schematic view of a main gear according to embodiment 1 of the present invention;
fig. 5 is a schematic view of a main gear according to embodiment 2 of the present invention.
In the figure: the screening box 1, the feeding port 11, the first screening area 2, the first shaft lever 21, the first discharging port 22, the second screening area 3, the second shaft lever 31, the second discharging port 32, the third screening area 4, the third shaft lever 41, the third discharging port 42, the fourth screening area 5, the fourth shaft lever 51, the fourth discharging port 52, the waste conveying belt 6, the shaft lever 61, the waste discharging port 62, the main gear 7, the first main gear 71, the trapezoidal teeth 711, the second main gear 72, the conical teeth 721, the secondary gear 8, the motor 9 and the belt 91.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
furthermore, a first screening area 2 is arranged inside the screening box 1, the screening box 1 comprises a feeding port 11, specifically, the feeding port 11 is arranged at the top end of the screening box 1, feeding is carried out through the feeding port 11, aggregate is screened through the first screening area 2, the second screening area 3, the third screening area 4 and the fourth screening area 5, the feeding effect is achieved, and the aggregate screening effect is achieved;
further, the first screening area 2 is arranged inside the screening box 1, the first screening area 2 comprises a first shaft rod 21 and a first discharge port 22, specifically, the first shaft rod 21 is fixedly arranged inside the screening box 1 through a shaft pin, the first discharge port 22 is arranged at the right end of the first shaft rod 21, the motor 9 is a three-phase asynchronous motor, because the first shaft rod 21 is fixedly arranged inside the screening box 1 through a shaft pin, the first discharge port 22 is arranged at the right end of the first shaft rod 21, the distance between the main gear 7 and the surface of the first screening area 2 is 8-10CM, the shaft rod 61 is driven to rotate by the motor 9, the belt 91 is driven by the shaft rod 61 to rotate, the belt 91 drives the first shaft rod 21 to rotate, thereby screening work is carried out on the first screening area 2, when the size of the coarse aggregate is eight centimeters to ten centimeters, the coarse aggregate is conveyed to the first discharge port 22 through the transmission of the main gear 7, discharging, and when the size of the aggregate is lower than 8-10CM, screening the aggregate in the next area through the pinion 8 to play a role in screening transmission so as to achieve the screening effect;
further, the second screening area 3 is arranged inside the screening box 1, the second screening area 3 comprises a second shaft rod 31 and a second discharge port 32, specifically, the second shaft rod 31 is fixedly arranged inside the screening box 1 through a shaft pin, the second discharge port 32 is arranged at the right end of the second shaft rod 31, as the distance between the main gear 7 and the surface of the second screening area 3 is five centimeters to seven centimeters, the shaft rod 61 is driven to rotate by the motor 9, the shaft rod 61 rotates to drive the belt 91, the belt 91 drives the second shaft rod 31 to rotate, so that the second screening area 3 carries out screening work, when the size of the coarse aggregate is 5-7CM, the coarse aggregate is transmitted to the second discharge port 32 through the transmission of the main gear 7 for discharging, when the size of the aggregate is less than 5-7CM, the coarse aggregate enters the next area through the auxiliary gear 8 for screening, so as to play a role of screening transmission, thereby achieving the effect of secondary screening;
further, a third screening area 4 is arranged inside the screening box 1, the third screening area 4 includes a third shaft rod 41 and a third discharge port 42, specifically, the third shaft rod 41 is fixedly installed inside the screening box 1 through a shaft pin, the third discharge port 42 is arranged at the right end of the third shaft rod 41, as the distance between the main gear 7 and the surface of the third screening area 4 is three centimeters to four centimeters, the shaft rod 61 is driven to rotate by the motor 9, the shaft rod 61 rotates to drive the belt 91, the belt 91 drives the third shaft rod 41 to rotate, so that the third screening area 4 performs screening work, when the size of the coarse aggregate is 3-4CM, the coarse aggregate is transmitted to the third discharge port 42 through the transmission of the main gear 7 for discharging, when the size of the aggregate is less than 3-4CM, the coarse aggregate enters the next area through the auxiliary gear 8 for screening work, so as to perform the screening transmission function, thereby achieving the effect of three-time screening;
further, a fourth screening area 5 is arranged inside the screening box 1, the fourth screening area 5 includes a fourth shaft 51 and a fourth discharging hole 52, specifically, the fourth shaft 51 is fixedly installed inside the screening box 1 through a shaft pin, the fourth discharging hole 52 is arranged at the right end of the fourth shaft 51, since the distance between the main gear 7 and the surface of the fourth screening area 5 is 1-2CM, the shaft 61 is driven to rotate by the motor 9, the shaft 61 rotates to drive the belt 91, the belt 91 drives the fourth shaft 51 to rotate, so that the fourth screening area 5 performs screening work, when the size of the coarse aggregate is 1-2CM, the coarse aggregate is transmitted to the fourth discharging hole 52 through the transmission of the main gear 7, is discharged, plays a role of screening transmission, thereby achieving the effect of four-time screening, when the size of the aggregate is less than 1-2CM, the coarse aggregate enters the waste conveying belt 6 through the secondary gear 8, the waste material discharging is carried out, so that the waste material conveying effect is achieved, and the waste material discharging effect is achieved;
further, the waste conveying belt 6 is arranged inside the screening box 1, the waste conveying belt 6 comprises a shaft rod 61 and a waste discharge port 62, specifically, the shaft rod 61 is fixedly installed inside the screening box 1 through a shaft pin, the waste discharge port 62 is arranged at the right end of the shaft rod 61, the shaft rod 61 is driven to rotate through the motor 9, so that the waste conveying belt 6 carries out waste treatment work, coarse aggregate is conveyed to the waste discharge port 62 through the transmission of the waste conveying belt 6 to be discharged, the waste conveying function is achieved, and the waste discharging effect is achieved;
further, the main gear 7 is sleeved on the outer wall of the first shaft 21, the main gear 7 comprises a first main gear 71 and trapezoidal teeth 711, specifically, the first main gear 71 is sleeved on the outer walls of the first shaft 21, the second shaft 31, the third shaft 41, the fourth shaft 51 and the shaft 61, the trapezoidal teeth 711 are arranged around the first main gear 71, since the distance between the first main gear 71 and the surface of the first screening area 2 is 8-10CM, the distance between the first main gear 71 and the surface of the second screening area 3 is 5-7CM, the distance between the first main gear 71 and the surface of the third screening area 4 is 3-4CM, the distance between the first main gear 71 and the surface of the fourth screening area 5 is 1-2CM, and the distance between the first main gear 71 and the auxiliary gear 8 is controlled to play a role in screening aggregate size, so as to achieve the effect of multiple screening.
The utility model discloses a use as follows: when the utility model is used, a person skilled in the art sets the first discharge port 22 at the right end of the first shaft rod 21, the first shaft rod 21 is fixedly installed inside the screening box 1 through a shaft pin, the distance between the first main gear 71 and the surface of the first screening area 2 is 8-10CM, the shaft rod 61 is driven to rotate through the motor 9, the shaft rod 61 rotates to drive the belt 91, the belt 91 drives the first shaft rod 21 to rotate, thereby the first screening area 2 is enabled to carry out screening work, when the size of coarse aggregate is 8-10CM, the coarse aggregate is transmitted to the first discharge port 22 through the transmission of the first main gear 71 to carry out discharging, when the size of aggregate is lower than 8-10CM, the coarse aggregate enters the next area through the auxiliary gear 8 to carry out screening transmission, thereby the screening effect is achieved, because the distance between the first main gear 71 and the surface of the second screening area 3 is 8-10CM, the shaft rod 61 is driven to rotate by the motor 9, the shaft rod 61 drives the belt 91 by rotation, the belt 91 drives the second shaft rod 31 to rotate, so that the second screening area 3 carries out screening work, when the size of the coarse aggregate is 8-10CM, the coarse aggregate is transmitted to the second discharge hole 32 by the transmission of the first main gear 71 to be discharged, when the size of the aggregate is lower than 8-10CM, the coarse aggregate enters the next area by the auxiliary gear 8 to be screened to play a role in screening transmission, so that the secondary screening effect is achieved, because the distance between the first main gear 71 and the surface of the third screening area 4 is 3-4CM, the shaft rod 61 is driven to rotate by the motor 9, the shaft rod 61 rotates to drive the belt 91, the belt 91 drives the third shaft rod 41 to rotate, so that the third screening area 4 carries out screening work, when the size of the coarse aggregate is 3-4CM, the first main gear 71 is used for transmission, the coarse aggregate is conveyed to the third discharge hole 42 for discharging, when the aggregate size is less than 3-4CM, the coarse aggregate enters the next area for screening through the pinion 8, the screening transmission effect is achieved, so that the screening effect of three times is achieved, because the distance between the first main gear 71 and the surface of the fourth screening area 5 is 1-2CM, the motor 9 drives the shaft rod 61 to rotate, the shaft rod 61 rotates to drive the belt 91, the belt 91 drives the fourth shaft rod 51 to rotate, so that the screening work of the fourth screening area 5 is achieved, when the coarse aggregate size is 1-2CM, the coarse aggregate is conveyed to the fourth discharge hole 52 through the transmission of the first main gear 71, the discharging is achieved, the screening transmission effect is achieved, when the aggregate size is less than 1-2CM, the coarse aggregate enters the waste conveying belt 6 through the pinion 8, carry out the waste material ejection of compact, play the effect of waste material conveying to reach the effect of waste material ejection of compact.
further, the main gear 7 is sleeved on the outer wall of the first shaft 21, the main gear 7 further comprises a second main gear 72 and tapered teeth 721, specifically, the second main gear 72 is sleeved on the outer walls of the first shaft 21, the second shaft 31, the third shaft 41, the fourth shaft 51 and the shaft 61, the tapered teeth 721 are arranged on the periphery of the second main gear 72, since the spacing between the second main gear 72 and the surface of the first screening area 2 is 8-10CM, the spacing between the second main gear 72 and the surface of the second screening area 3 is 5-7CM, the spacing between the second main gear 72 and the surface of the third screening area 4 is 3-4CM, the spacing between the second main gear 72 and the surface of the fourth screening area 5 is 1-2CM, and the spacing between the second main gear 72 and the secondary gear 8 is controlled, so as to control the size of the screened aggregate, thereby achieving the effect of multi-screening.
The utility model discloses a use as follows: when the utility model is used, a person skilled in the art sets the first discharge port 22 at the right end of the first shaft rod 21, the first shaft rod 21 is fixedly installed inside the screening box 1 through a shaft pin, the distance between the second main gear 72 and the surface of the first screening area 2 is 8-10CM, the shaft rod 61 is driven to rotate through the motor 9, the shaft rod 61 rotates to drive the belt 91, the belt 91 drives the first shaft rod 21 to rotate, so that the first screening area 2 performs screening work, when the size of coarse aggregate is 8-10CM, the coarse aggregate is transmitted to the first discharge port 22 through the transmission of the second main gear 72 to be discharged, when the size of aggregate is lower than 8-10CM, the coarse aggregate enters the next area through the auxiliary gear 8 to be screened, so that the screening transmission effect is achieved, because the distance between the second main gear 72 and the surface of the second screening area 3 is 8-10CM, the shaft rod 61 is driven to rotate by the motor 9, the shaft rod 61 drives the belt 91 by rotation, the belt 91 drives the second shaft rod 31 to rotate, so that the second screening area 3 carries out screening work, when the size of the coarse aggregate is 8-10CM, the coarse aggregate is transmitted to the second discharge hole 32 by the transmission of the second main gear 72 to be discharged, when the size of the aggregate is lower than 8-10CM, the coarse aggregate enters the next area by the auxiliary gear 8 to be screened, the screening transmission effect is achieved, so that the secondary screening effect is achieved, because the distance between the second main gear 72 and the surface of the third screening area 4 is 3-4CM, the shaft rod 61 is driven to rotate by the motor 9, the shaft rod 61 rotates to drive the belt 91, the belt 91 drives the third shaft rod 41 to rotate, so that the third screening area 4 carries out screening work, when the size of the coarse aggregate is 3-4CM, the transmission of the second main gear 72 is adopted, the coarse aggregate is conveyed to the third discharge hole 42 for discharging, when the aggregate size is less than 3-4CM, the coarse aggregate enters the next area for screening through the pinion 8, the screening transmission effect is achieved, so that the screening effect of three times is achieved, because the distance between the second main gear 72 and the surface of the fourth screening area 5 is 1-2CM, the motor 9 drives the shaft rod 61 to rotate, the shaft rod 61 rotates to drive the belt 91, the belt 91 drives the fourth shaft rod 51 to rotate, so that the screening work of the fourth screening area 5 is achieved, when the coarse aggregate size is 1-2CM, the coarse aggregate is conveyed to the fourth discharge hole 52 through the transmission of the second main gear 72, the discharging is achieved, the screening transmission effect is achieved, when the aggregate size is less than 1-2CM, the coarse aggregate enters the waste conveying belt 6 through the pinion 8, carry out the waste material ejection of compact, play the effect of waste material conveying to reach the effect of waste material ejection of compact.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (6)
1. The utility model provides an aggregate screening plant is used in road bridge construction, includes screening case (1), first screening region (2), second screening region (3), third screening region (4), fourth screening region (5), waste material transmission band (6), master gear (7), pinion (8) and motor (9), its characterized in that: the upper end in the screening box (1) is provided with the first screening area (2), the upper end in the screening box (1) is provided with the second screening area (3), the middle in the screening box (1) is provided with the third screening area (4), the lower end in the screening box (1) is provided with the fourth screening area (5), the bottom end in the screening box (1) is provided with the waste conveying belt (6), the outer wall surfaces of the first screening area (2), the second screening area (3), the third screening area (4) and the fourth screening area (5) are sleeved inside the main gear (7) and the auxiliary gear (8), and the left end of the screening box (1) is provided with the motor (9);
-the first screening zone (2) comprises a first shaft (21), -the second screening zone (3) comprises a second shaft (31), -the third screening zone (4) comprises a third shaft (41), -the fourth screening zone (5) comprises a fourth shaft (51), -the scrap conveyor (6) comprises a shaft (61);
the upper end in the screening box (1) is fixed with the first shaft lever (21) through a shaft pin, the upper end in the screening box (1) is fixed with the second shaft lever (31) through a shaft pin, the middle in the screening box (1) is fixed with the third shaft lever (41) through a shaft pin, the lower end in the screening box (1) is fixed with the fourth shaft lever (51) through a shaft pin, and the bottom end in the screening box (1) is fixed with the shaft lever (61) through a shaft pin;
the outer walls of the first shaft rod (21), the second shaft rod (31), the third shaft rod (41) and the fourth shaft rod (51) are sleeved with the main gear (7) and the pinion (8);
the main gear (7) comprises a first main gear (71) and trapezoidal teeth (711), the first main gear (71) is sleeved on the outer walls of the first shaft rod (21), the second shaft rod (31), the third shaft rod (41) and the fourth shaft rod (51), and the trapezoidal teeth (711) are arranged on the peripheral surface of the first main gear (71);
the output end of the motor (9) is connected with the shaft rod (61), the right end of the motor (9) is sleeved with a belt (91), and the belt (91) is sleeved with the left end of the outer wall of the first shaft rod (21), the second shaft rod (31), the third shaft rod (41), the fourth shaft rod (51) and the shaft rod (61).
2. The aggregate screening device for road and bridge construction according to claim 1, wherein: screening case (1) top sets up material loading mouth (11).
3. The aggregate screening device for road and bridge construction according to claim 1, wherein: the right-hand member of first screening region (2) is equipped with first discharge gate (22), the right-hand member of second screening region (3) is equipped with second discharge gate (32), the right-hand member of third screening region (4) is equipped with third discharge gate (42), the right-hand member of fourth screening region (5) is equipped with fourth discharge gate (52), the right-hand member of waste material transmission band (6) is equipped with waste material discharge gate (62).
4. The aggregate screening device for road and bridge construction according to claim 3, wherein: the right ends of the first discharge hole (22), the second discharge hole (32), the third discharge hole (42), the fourth discharge hole (52) and the waste discharge hole (62) are inclined downwards.
5. The aggregate screening device for road and bridge construction according to claim 1, wherein: the spacing of the main gear (7) on the surface of the first screening area (2) is 8-10CM, the spacing of the main gear (7) on the surface of the second screening area (3) is 5-7CM, the spacing of the main gear (7) on the surface of the third screening area (4) is 3-4CM, and the spacing of the main gear (7) on the surface of the fourth screening area (5) is 1-2 CM.
6. The aggregate screening device for road and bridge construction according to claim 1, wherein: the main gear (7) further comprises a second main gear (72) and tapered teeth (721), the second main gear (72) is sleeved on the outer walls of the first shaft rod (21), the second shaft rod (31), the third shaft rod (41) and the fourth shaft rod (51), and the tapered teeth (721) are arranged on the peripheral surface of the second main gear (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021587104.4U CN213255557U (en) | 2020-08-04 | 2020-08-04 | Aggregate screening plant is used in road bridge construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021587104.4U CN213255557U (en) | 2020-08-04 | 2020-08-04 | Aggregate screening plant is used in road bridge construction |
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| CN213255557U true CN213255557U (en) | 2021-05-25 |
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| CN202021587104.4U Active CN213255557U (en) | 2020-08-04 | 2020-08-04 | Aggregate screening plant is used in road bridge construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113933216A (en) * | 2021-10-12 | 2022-01-14 | 长安大学 | On-spot real-time supervision device of edges and corners nature gathers materials |
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2020
- 2020-08-04 CN CN202021587104.4U patent/CN213255557U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113933216A (en) * | 2021-10-12 | 2022-01-14 | 长安大学 | On-spot real-time supervision device of edges and corners nature gathers materials |
| CN113933216B (en) * | 2021-10-12 | 2023-08-25 | 长安大学 | On-spot real-time supervision device of edges and corners nature gathers materials |
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