CN210333331U - Automatic screening instrument for pavement mixture mix proportion design - Google Patents

Automatic screening instrument for pavement mixture mix proportion design Download PDF

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Publication number
CN210333331U
CN210333331U CN201921277494.2U CN201921277494U CN210333331U CN 210333331 U CN210333331 U CN 210333331U CN 201921277494 U CN201921277494 U CN 201921277494U CN 210333331 U CN210333331 U CN 210333331U
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China
Prior art keywords
screening
cavity
discharge
mix proportion
automatic
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Active
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CN201921277494.2U
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Chinese (zh)
Inventor
周合宽
贾耀飞
孙峰
段彬
贺岩
张仲夏
徐洪涛
王盘峰
徐艳芳
胡宗保
王光志
高占静
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HENAN NO.2 HIGHWAY ENGINEERING Co.,Ltd.
Henan Highway Engineering Group Co Ltd
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Henan No2 Highway Engineering Co ltd
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Priority to CN201921277494.2U priority Critical patent/CN210333331U/en
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Abstract

The utility model belongs to the technical field of road engineering, which comprises a frame, wherein the outer end of the top surface of the frame is provided with a motor, the motor is sequentially connected with a transmission, a driving shaft, a driving belt pulley, a belt and a driven belt pulley, the driven belt pulley is connected with a driven shaft, and the tail end of the driven shaft is rotationally connected with a cam; a suspension spring is arranged on the rack, the suspension spring is connected with a screening cavity, a screening disc is arranged in the screening cavity, a push rod is arranged on the outer wall of the upper part of the screening cavity, the push rod is connected with a push plate, and the push plate is connected with a cam in a sliding manner; a discharge hole is formed in the outer wall of the screening cavity and connected with a discharge cover, the discharge cover is connected with a discharge pipe joint, the discharge pipe joint is connected with one end of a discharge pipe, the other end of the discharge pipe is connected with a charging tray, and the charging tray is arranged on the electronic scale; the utility model discloses rational in infrastructure, convenient to use can stabilize high efficiency and carry out standardized screening and analysis to the building stones with high quality.

Description

Automatic screening instrument for pavement mixture mix proportion design
Technical Field
The utility model belongs to the technical field of road engineering, concretely relates to automatic screening appearance of road surface mixture mix proportion design.
Background
In 1988, a first highway in continental China is built into a vehicle passing through Hujia highway, the blank that no highway in China passes through is filled, from 1996, the highway in China enters a rapid development period, the total mileage of the highway in China breaks through 14 kilometers by 2018, the highway in China reaches the world first from zero, and the highway in China runs through the development course of the highway in the last hundred years in the developed country; the mix proportion design of the asphalt pavement and the cement stabilized macadam base layer of the expressway is required, stones need to be screened during the mix proportion design, the frequency of the screening stones is high, the strength of the screening stones is high, the screening stones are designed according to the mix proportion of the asphalt pavement and the cement stabilized macadam base layer of the expressway, the screening stones are artificial, the speed is low, the efficiency is low, the number of human factors is large, and the standardization cannot be realized, so that the automatic screening instrument for the mix proportion design of the pavement mixture needs to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, and provide a rational in infrastructure, convenient to use, can stabilize high efficiency and high quality ground and sieve the automatic appearance that sieves of road surface mixture mix proportion design of analysis to the building stones.
The purpose of the utility model is realized like this: an automatic screening instrument for pavement mixture mix proportion design comprises a rack, wherein a motor is arranged at the outer end of the top surface of the rack, the motor is connected with a transmission, the transmission is connected with a driving belt pulley through a driving shaft, the driving belt pulley is connected with a driven belt pulley through a belt, the driven belt pulley is connected with a driven shaft, the driven shaft is rotatably connected with the rack through a bearing arranged on the rack, and the tail end of the driven shaft is rotatably connected with a cam; the screening machine is characterized in that a suspension spring is arranged in the middle of the bottom surface of the rack, the suspension spring is connected with a screening cavity, a feeding hole is formed in the top of the screening cavity, a camera port and a high-definition high-speed camera are arranged in the screening cavity, a screening disc is arranged in the screening cavity, a push rod is arranged on the outer wall of the upper portion of the screening cavity, the push rod is connected with a push plate, and the push plate is connected with the cam in a sliding manner; a discharge hole is formed in the outer wall of the screening cavity, the discharge hole is connected with a discharge cover, the discharge cover is connected with a discharge pipe connector, the discharge pipe connector is connected with one end of a discharge pipe, the other end of the discharge pipe is connected with a charging tray, and the charging tray is arranged on the electronic scale; the bottom of the screening cavity is provided with a second discharge hole, the second discharge hole is connected with electronic scales, and the electronic scales are electrically connected and are electrically connected with a computer.
The screening chamber is cylindrical cavity, the sieve tray is foraminiferous circular dish, not equidimension be provided with not equidimension hole on the sieve tray.
The screening chamber is from last to being the step shape that the external diameter constantly reduces extremely down, the screening chamber can set up to second order, third order or fourth order, every order the screening intracavity all is provided with one the sieve tray, every order the screening intracavity all is provided with high definition high speed camera with the mouth of making a video recording.
The right end of the sieve tray is supported by a stop block arranged on the inner wall of the sieving cavity, the bottom of the left end of the sieve tray is connected with a support plate spring, the support plate spring is connected with a support plate, and the support plate is fixed on the inner wall of the sieving cavity.
The discharge gate is circular mouth, the upper edge of discharge gate with sieve tray parallel and level.
The discharging cover is a magnetic body, the discharging pipe is a hose, and the connection of the discharging pipe is a magnetic body.
The frame right side is provided with the wifi device.
The automatic screening instrument for the mix proportion design of the pavement mixture comprises a control system consisting of control elements.
The utility model has the advantages that: the utility model discloses the complete machine provides power through the motor, and derailleur adjustable output rotational speed, motor power pass through the derailleur and drive the rotation of driving pulley by the driving shaft, and driving pulley drives driven pulley, driven shaft and cam through the belt and rotates, promotes the top push pedal through the cam and makes the screening chamber swing in the horizontal direction, makes the screening chamber vibrate from top to bottom when the horizontal oscillation through suspension spring, and the mixture effectively sieves through the sieve tray through rocking; the number and the aperture of the sieve trays are selected according to the mix proportion of stone design, the distribution principle of the sieve trays is that the sieve tray with the largest aperture is at the uppermost part and is gradually reduced downwards, and the sieve tray with the smallest aperture is at the lowermost part; the sieve tray is a quick-wear part, and is movable for convenient replacement; when the material is discharged after screening, the screening cavity is inclined to incline the discharge port, the stone moves towards the outlet direction, the gravity of the stone acts on the support plate spring to enable the screen disc to face downwards to expose the discharge port, the stone enters the discharge pipe through the discharge port and falls into the material disc, and the electronic scale weighs the stone and transmits information to the computer; the high-definition high-speed camera in the screening cavity can perform high-definition shooting on the mixture and transmit the mixture to a computer for analysis; the control system controls the swinging speed, feeding, discharging, weighing, calculating and the like; the utility model discloses rational in infrastructure, convenient to use has stopped the human factor, can stabilize high-efficient and carry out standardized screening and analysis to the building stones with high quality, has improved work efficiency and quality, has reduced working strength and cost.
Drawings
Fig. 1 is the utility model discloses a structural schematic diagram of automatic screening appearance of road surface mixture mix proportion design.
In the figure: 1. the device comprises a driven belt pulley 2, a belt 3, a driving belt pulley 4, a driving shaft 5, a feeding hole 6, a motor 7, a transmission 8, a wifi device 9, a high-definition high-speed camera 10, a camera shooting port 11, a screening cavity 12, a screening disc 13, a stop block 14, a computer 15, an electronic scale 16, a material disc 17, a material discharging pipe 18, a material discharging hole 19, a support plate 20, a support plate spring 21, a material discharging pipe joint 22, a material discharging cover 23, a pushing plate 24, a cam 25, a pushing rod 26, a suspension spring 27, a rack 28, a bearing 29 and a driven shaft.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1, an automatic screening instrument for road surface mixture mix proportion design comprises a frame 27, wherein an electric motor 6 is arranged at the outer end of the top surface of the frame 27, the electric motor 6 is connected with a speed changer 7, the speed changer 7 is connected with a driving pulley 3 through a driving shaft 4, the driving pulley 3 is connected with a driven pulley 1 through a belt 2, the driven pulley 1 is connected with a driven shaft 29, the driven shaft 29 is rotatably connected with the frame 27 through a bearing 28 arranged on the frame 27, and the tail end of the driven shaft 29 is rotatably connected with a cam 24; a suspension spring 26 is arranged in the middle of the bottom surface of the rack 27, the suspension spring 26 is connected with a screening cavity 11, a feed inlet 5 is arranged at the top of the screening cavity 11, a camera 10 and a high-definition high-speed camera 9 are arranged in the screening cavity 11, a screening disc 12 is arranged in the screening cavity 11, a push rod 25 is arranged on the outer wall of the upper part of the screening cavity 11, the push rod 25 is connected with a push plate 23, and the push plate 23 is slidably connected with the cam 24; a discharge hole 18 is formed in the outer wall of the screening cavity 11, the discharge hole 18 is connected with a discharge cover 22, the discharge cover 22 is connected with a discharge pipe joint 21, the discharge pipe joint 21 is connected with one end of a discharge pipe 17, the other end of the discharge pipe 17 is connected with a charging tray 16, and the charging tray 16 is arranged on the electronic scale 15; the bottom of the screening cavity 11 is provided with a second discharge hole, the second discharge hole is connected with an electronic scale 15, and the electronic scales 15 are electrically connected and are electrically connected with a computer 14.
Instrument shimmy theory of operation: stone is added into a screening cavity 11 from a feeding hole 5, a motor 6 is started on a screen disc 12 at the upper most layer behind the stone, power is transmitted to a driven belt pulley 1 through a speed changer 7, a driving shaft 4, a driving belt pulley 3 and a belt 2, the driven belt pulley 1 drives a driven shaft 29 to rotate, the driven shaft 29 drives two cams 24 to rotate, the two cams 24 are arranged at the angle difference of 90 degrees in the plane, the cams 24 push a pushing plate 23 to move left and right when rotating, the pushing plate 23 drives a pushing rod 25 and the screening cavity 11 to swing left and right, and screening is completed; when the large-radius part of the left cam 24 turns to the pushing plate 23 and the small-radius part of the right cam 24 turns to the pushing plate 23, the left cam 24 rotates to push the sieving cavity 11 to swing rightwards, and at the moment, the right cam 24 rotates to leave a space; when the large-radius part of the left cam 24 reaches the pushing plate 23, the small-radius part of the right cam 24 reaches the pushing plate 23, the sieving cavity 11 reaches the rightmost side, then the left cam 24 and the right cam 24 continue to rotate, the large-radius part of the left cam 24 is separated from the pushing plate 23, when the large-radius part of the right cam 24 turns to the pushing plate 23, the right cam 24 rotates to push the sieving cavity 11 to swing leftwards, and the left cam 24 rotates to leave a space; when the large radius part of the right cam 24 reaches the ejector plate 23, the small radius part of the left cam 24 reaches the ejector plate 23, and the sieving cavity 11 reaches the leftmost side; when the screening chamber 11 moves horizontally, the suspension spring 26 is not perpendicular to the screening chamber 11, but inclined, the screening chamber 11 is acted by the inclined force of the suspension spring 26, the inclined force can be resolved into a horizontal force and a vertical force, the screening chamber 11 swings left and right under the action of the horizontal force, and the screening chamber 11 vibrates up and down under the action of the vertical force.
The utility model discloses the complete machine provides power through motor 6, and derailleur 7 adjustable output rotational speed, and motor 6 power is driven the drive pulley 3 through derailleur 7 by driving shaft 4 and is rotated, and drive pulley 3 drives driven pulley 1, driven shaft 29 and cam 24 through belt 2 and rotates, promotes push pedal 23 through cam 24 and makes screening chamber 11 swing in the horizontal direction, makes screening chamber 11 vibrate from top to bottom when the horizontal oscillation through suspension spring 26, and the mixture effectively sieves through shaking screen tray 12; the number and the aperture of the sieve trays 12 are selected according to the mix proportion of stone design, the arrangement principle of the sieve trays 12 is that the sieve tray 12 with the largest aperture is at the uppermost part and is gradually reduced downwards, and the sieve tray 12 with the smallest aperture is at the lowermost part; the sieve tray 12 is a wearing part, and the sieve tray 12 is movable for convenient replacement; when the screening is finished and the material is discharged, the screening cavity 11 is inclined to incline the discharge hole 18, the stone moves towards the outlet direction, the gravity of the stone acts on the supporting plate spring 20 to enable the screening disc 12 to face downwards to expose the discharge hole 18, the stone enters the discharge pipe 17 through the discharge hole 18 and falls into the material tray 16, the electronic scale 15 weighs the stone and transmits information to the computer 14; the high-definition high-speed camera 9 in the screening cavity 11 can shoot the mixture in a high-definition mode and transmit the shot mixture to the computer 14 for analysis; the control system controls the swinging speed, feeding, discharging, weighing, calculating and the like; the utility model discloses rational in infrastructure, convenient to use has stopped the human factor, can stabilize high-efficient and carry out standardized screening and analysis to the building stones with high quality, has improved work efficiency and quality, has reduced working strength and cost.
Example 2
As shown in fig. 1, an automatic screening instrument for road surface mixture mix proportion design comprises a frame 27, wherein an electric motor 6 is arranged at the outer end of the top surface of the frame 27, the electric motor 6 is connected with a speed changer 7, the speed changer 7 is connected with a driving pulley 3 through a driving shaft 4, the driving pulley 3 is connected with a driven pulley 1 through a belt 2, the driven pulley 1 is connected with a driven shaft 29, the driven shaft 29 is rotatably connected with the frame 27 through a bearing 28 arranged on the frame 27, and the tail end of the driven shaft 29 is rotatably connected with a cam 24; a suspension spring 26 is arranged in the middle of the bottom surface of the rack 27, the suspension spring 26 is connected with a screening cavity 11, a feed inlet 5 is arranged at the top of the screening cavity 11, a camera 10 and a high-definition high-speed camera 9 are arranged in the screening cavity 11, a screening disc 12 is arranged in the screening cavity 11, a push rod 25 is arranged on the outer wall of the upper part of the screening cavity 11, the push rod 25 is connected with a push plate 23, and the push plate 23 is slidably connected with the cam 24; a discharge hole 18 is formed in the outer wall of the screening cavity 11, the discharge hole 18 is connected with a discharge cover 22, the discharge cover 22 is connected with a discharge pipe joint 21, the discharge pipe joint 21 is connected with one end of a discharge pipe 17, the other end of the discharge pipe 17 is connected with a charging tray 16, and the charging tray 16 is arranged on the electronic scale 15; the bottom of the screening cavity 11 is provided with a second discharge hole, the second discharge hole is connected with an electronic scale 15, and the electronic scales 15 are electrically connected and are electrically connected with a computer 14.
For better effect, screening chamber 11 is cylindrical cavity, sieve tray 12 is foraminiferous circular dish, and not equidimension be provided with not equidimension hole on the sieve tray, can carry out the screening operation to the mixture more effectively.
For better effect, screening chamber 11 is from last to being the step shape that the external diameter constantly reduces down, screening chamber 11 can set up to second order, third order or fourth order, every order all be provided with one in the screening chamber 11 sieve tray 12, every order all be provided with in the screening chamber 11 high definition high speed camera 9 with camera port 10 can conveniently carry out effective screening to the mixture of difference to carry out the analysis and calculation to it.
In order to achieve better effect, the right end of the sieve tray 12 is supported by a stop block 13 arranged on the inner wall of the sieving cavity 11, a support plate spring 20 is connected to the bottom of the left end of the sieve tray 12, the support plate spring 20 is connected with a support plate 19, and the support plate 19 is fixed on the inner wall of the sieving cavity 11, so that the sieve tray 12 can be conveniently replaced, and the use convenience of the instrument is improved.
For better effect, discharge gate 18 is circular mouth, the last edge of discharge gate 18 with sieve tray 12 parallel and level can guarantee that the mixture does not spill over when sieving, conveniently sieves the back ejection of compact after finishing simultaneously.
For better effect, the discharging cover 22 is a magnetic body, the discharging pipe 17 is a hose, and the discharging pipe joint 21 is a magnetic body, so that the operation of installation, detachment and the like of the instrument is facilitated.
For better effect, frame 27 right side is provided with the wifi device, can shoot data wireless transmission for computer 14 with high definition high speed camera, and computer 14 is equipped with the analysis and calculation software, and the screening result of building stones is directly calculated to the analysis and calculation software to carry out the mix proportion design automatically through building stones image information and screening result.
For better effect, the automatic screening instrument for the mix proportion design of the pavement mixture comprises a control system consisting of a control element, control software, an operating switch and the like, and the control system can control the swinging speed, feeding, discharging, weighing, calculating and the like.
Instrument shimmy theory of operation: stone is added into a screening cavity 11 from a feeding hole 5, a motor 6 is started on a screen disc 12 at the upper most layer behind the stone, power is transmitted to a driven belt pulley 1 through a speed changer 7, a driving shaft 4, a driving belt pulley 3 and a belt 2, the driven belt pulley 1 drives a driven shaft 29 to rotate, the driven shaft 29 drives two cams 24 to rotate, the two cams 24 are arranged at the angle difference of 90 degrees in the plane, the cams 24 push a pushing plate 23 to move left and right when rotating, the pushing plate 23 drives a pushing rod 25 and the screening cavity 11 to swing left and right, and screening is completed; when the large-radius part of the left cam 24 turns to the pushing plate 23 and the small-radius part of the right cam 24 turns to the pushing plate 23, the left cam 24 rotates to push the sieving cavity 11 to swing rightwards, and at the moment, the right cam 24 rotates to leave a space; when the large-radius part of the left cam 24 reaches the pushing plate 23, the small-radius part of the right cam 24 reaches the pushing plate 23, the sieving cavity 11 reaches the rightmost side, then the left cam 24 and the right cam 24 continue to rotate, the large-radius part of the left cam 24 is separated from the pushing plate 23, when the large-radius part of the right cam 24 turns to the pushing plate 23, the right cam 24 rotates to push the sieving cavity 11 to swing leftwards, and the left cam 24 rotates to leave a space; when the large radius part of the right cam 24 reaches the ejector plate 23, the small radius part of the left cam 24 reaches the ejector plate 23, and the sieving cavity 11 reaches the leftmost side; when the screening chamber 11 moves horizontally, the suspension spring 26 is not perpendicular to the screening chamber 11, but inclined, the screening chamber 11 is acted by the inclined force of the suspension spring 26, the inclined force can be resolved into a horizontal force and a vertical force, the screening chamber 11 swings left and right under the action of the horizontal force, and the screening chamber 11 vibrates up and down under the action of the vertical force.
The utility model discloses the complete machine provides power through motor 6, and derailleur 7 adjustable output rotational speed, and motor 6 power is driven the drive pulley 3 through derailleur 7 by driving shaft 4 and is rotated, and drive pulley 3 drives driven pulley 1, driven shaft 29 and cam 24 through belt 2 and rotates, promotes push pedal 23 through cam 24 and makes screening chamber 11 swing in the horizontal direction, makes screening chamber 11 vibrate from top to bottom when the horizontal oscillation through suspension spring 26, and the mixture effectively sieves through shaking screen tray 12; the number and the aperture of the sieve trays 12 are selected according to the mix proportion of stone design, the arrangement principle of the sieve trays 12 is that the sieve tray 12 with the largest aperture is at the uppermost part and is gradually reduced downwards, and the sieve tray 12 with the smallest aperture is at the lowermost part; the sieve tray 12 is a wearing part, and the sieve tray 12 is movable for convenient replacement; when the screening is finished and the material is discharged, the screening cavity 11 is inclined to incline the discharge hole 18, the stone moves towards the outlet direction, the gravity of the stone acts on the supporting plate spring 20 to enable the screening disc 12 to face downwards to expose the discharge hole 18, the stone enters the discharge pipe 17 through the discharge hole 18 and falls into the material tray 16, the electronic scale 15 weighs the stone and transmits information to the computer 14; the high-definition high-speed camera 9 in the screening cavity 11 can shoot the mixture in a high-definition mode and transmit the shot mixture to the computer 14 for analysis; the control system controls the swinging speed, feeding, discharging, weighing, calculating and the like; the utility model discloses rational in infrastructure, convenient to use has stopped the human factor, can stabilize high-efficient and carry out standardized screening and analysis to the building stones with high quality, has improved work efficiency and quality, has reduced working strength and cost.

Claims (8)

1. The utility model provides an automatic appearance that sieves of road surface mixture mix design, it includes frame (27), its characterized in that: the automatic belt conveyor is characterized in that a motor (6) is arranged at the outer end of the top surface of the rack (27), the motor (6) is connected with a speed changer (7), the speed changer (7) is connected with a driving belt pulley (3) through a driving shaft (4), the driving belt pulley (3) is connected with a driven belt pulley (1) through a belt (2), the driven belt pulley (1) is connected with a driven shaft (29), the driven shaft (29) is rotatably connected with the rack (27) through a bearing (28) arranged on the rack (27), and the tail end of the driven shaft (29) is rotatably connected with a cam (24); a suspension spring (26) is arranged in the middle of the bottom surface of the rack (27), the suspension spring (26) is connected with a screening cavity (11), a feeding hole (5) is formed in the top of the screening cavity (11), a camera opening (10) and a high-definition high-speed camera (9) are arranged in the screening cavity (11), a screening disc (12) is arranged in the screening cavity (11), a push rod (25) is arranged on the outer wall of the upper portion of the screening cavity (11), the push rod (25) is connected with a push plate (23), and the push plate (23) is connected with the cam (24) in a sliding manner; a discharge hole (18) is formed in the outer wall of the screening cavity (11), the discharge hole (18) is connected with a discharge cover (22), the discharge cover (22) is connected with a discharge pipe joint (21), the discharge pipe joint (21) is connected with one end of a discharge pipe (17), the other end of the discharge pipe (17) is connected with a charging tray (16), and the charging tray (16) is arranged on the electronic scale (15); the bottom of the screening cavity (11) is provided with a second discharge hole, the second discharge hole is connected with electronic scales (15), and the electronic scales (15) are electrically connected and are electrically connected with a computer (14).
2. The automatic pavement mixture mix proportion design screening instrument according to claim 1, characterized in that: the screening cavity (11) is a cylindrical cavity, the screening disc (12) is a circular disc with holes, and the holes with different sizes are formed in the screening discs with different sizes.
3. The automatic pavement mixture mix proportion design screening instrument according to claim 1, characterized in that: screening chamber (11) is from last to being the step shape that the external diameter constantly reduces extremely down, screening chamber (11) can set up to second order, third order or fourth order, every order all be provided with one in screening chamber (11) sieve tray (12), every order all be provided with in screening chamber (11) high definition high speed camera (9) with mouth (10) of making a video recording.
4. The automatic pavement mixture mix proportion design screening instrument according to claim 1, characterized in that: the right end of the screen tray (12) is supported by a stop block (13) arranged on the inner wall of the screening cavity (11), the bottom of the left end of the screen tray (12) is connected with a support plate spring (20), the support plate spring (20) is connected with a support plate (19), and the support plate (19) is fixed on the inner wall of the screening cavity (11).
5. The automatic pavement mixture mix proportion design screening instrument according to claim 1, characterized in that: the discharge port (18) is a circular port, and the upper edge of the discharge port (18) is flush with the sieve tray (12).
6. The automatic pavement mixture mix proportion design screening instrument according to claim 1, characterized in that: the discharging cover (22) is a magnetic body, the discharging pipe (17) is a hose, and the discharging pipe joint (21) is a magnetic body.
7. The automatic pavement mixture mix proportion design screening instrument according to claim 1, characterized in that: frame (27) right side is provided with wifi device (8).
8. The automatic pavement mixture mix proportion design screening instrument according to claim 1, characterized in that: the automatic screening instrument for the mix proportion design of the pavement mixture comprises a control system consisting of control elements.
CN201921277494.2U 2019-08-08 2019-08-08 Automatic screening instrument for pavement mixture mix proportion design Active CN210333331U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921277494.2U CN210333331U (en) 2019-08-08 2019-08-08 Automatic screening instrument for pavement mixture mix proportion design

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921277494.2U CN210333331U (en) 2019-08-08 2019-08-08 Automatic screening instrument for pavement mixture mix proportion design

Publications (1)

Publication Number Publication Date
CN210333331U true CN210333331U (en) 2020-04-17

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CN201921277494.2U Active CN210333331U (en) 2019-08-08 2019-08-08 Automatic screening instrument for pavement mixture mix proportion design

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112317022A (en) * 2020-12-03 2021-02-05 安徽盛天新型建材有限公司 Raw material crushing device is used in mineral wool ceiling production
CN114935247A (en) * 2022-03-25 2022-08-23 徐艳芳 Intelligent pulse type air flow grain drying equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112317022A (en) * 2020-12-03 2021-02-05 安徽盛天新型建材有限公司 Raw material crushing device is used in mineral wool ceiling production
CN114935247A (en) * 2022-03-25 2022-08-23 徐艳芳 Intelligent pulse type air flow grain drying equipment
CN114935247B (en) * 2022-03-25 2023-09-05 重庆和创简一科技有限公司 Intelligent pulse type airflow grain drying equipment

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GR01 Patent grant
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TR01 Transfer of patent right

Effective date of registration: 20201119

Address after: 450052 No. 91 Zhongyuan Road, 27 District, Henan, Zhengzhou

Patentee after: HENAN HIGHWAY ENGINEERING GROUP Co.,Ltd.

Patentee after: HENAN NO.2 HIGHWAY ENGINEERING Co.,Ltd.

Address before: 450000 Huaibei street, Zhengzhou, Zhengzhou, Henan

Patentee before: HENAN NO.2 HIGHWAY ENGINEERING Co.,Ltd.

TR01 Transfer of patent right