Aggregate screening device for concrete production
By designing a diversion plate and a return belt, multiple screenings of aggregates in concrete production are achieved, solving the problem of incomplete aggregate screening in existing technologies and improving work efficiency and screening effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI YUANDU CONCRETE CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-04-24
AI Technical Summary
Existing aggregate screening equipment for concrete production cannot screen aggregates cleanly in one go, requiring workers to perform repeated operations frequently, wasting manpower and time, and reducing work efficiency.
The design employs a diversion plate and return belt to transport unscreened aggregates back to the storage bin, and then re-transports them to the distribution bin via the feed belt for multiple screenings. This process is further enhanced by the use of a blower and screens to achieve multiple screenings.
It improves the thoroughness of aggregate screening, saves manpower and time, increases work efficiency, and ensures that aggregates meet design requirements.
Smart Images
Figure CN224157296U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aggregate screening technology, and in particular to an aggregate screening device for concrete production. Background Technology
[0002] Aggregates are the main component of concrete, and are divided into coarse aggregates and fine aggregates. The particle size distribution, shape, and cleanliness of aggregates directly affect the workability, mechanical properties, and durability of concrete. Therefore, during the concrete production process, aggregates must be strictly screened to ensure that they meet design requirements.
[0003] In existing technologies, general concrete aggregate screening devices use direct pouring of aggregates onto the screen for screening. This method cannot ensure that the aggregates are screened cleanly in one go, requiring workers to frequently pour the uncleaned aggregates back onto the screen, which is a waste of manpower and time and reduces work efficiency. Therefore, it is necessary to improve the concrete aggregate screening device to solve the above problems. Utility Model Content
[0004] To overcome the problem that aggregates cannot be completely screened in one go, requiring workers to frequently refill the screen with uncleaned aggregates.
[0005] The technical solution of this utility model is as follows: a concrete production aggregate screening device, including a storage box and a base, and a transmission component set on the base. The base is set on one side of the storage box, and a support is fixedly connected to the base. A feeding belt is set between the storage box and the support. A distribution box is set on the side of the base away from the storage box. A blower is installed on the distribution box. A screen is set inside the distribution box. The blower blows the aggregate onto the surface of the screen. A diversion plate is fixedly connected inside the distribution box. A return belt is set between the distribution box and the support. The return belt is used to send the aggregate initially screened by the screen back to the inside of the storage box, and then transport it back to the inside of the distribution box through the feeding belt.
[0006] Preferably, a control panel is fixedly connected to the storage bin, a sealing door is rotatably connected to the distribution bin, a first motor is installed on the blower, and a support block is fixedly connected inside the distribution bin.
[0007] Preferably, a fourth rotating shaft is rotatably connected to the storage bin, a first rotating shaft is rotatably connected to the bracket, rotating cylinders are fixedly connected to the fourth rotating shaft and the first rotating shaft respectively, a feeding belt is connected to the rotating cylinder, a third rotating shaft is rotatably connected to the distribution bin, a second rotating shaft is rotatably connected to the bracket, rotating cylinders are fixedly connected to the second rotating shaft and the third rotating shaft respectively, a return belt is connected to the rotating cylinder, a first support plate is rotatably connected to the fourth rotating shaft and the first rotating shaft, and a second support plate is rotatably connected to the third rotating shaft and the second rotating shaft.
[0008] Preferably, the transmission assembly includes a second motor fixed on the base, a first driving wheel fixedly connected to the output end of the second motor, a first rotating shaft rotatably connected to the bracket, a first driven wheel fixedly connected to the first rotating shaft, a first belt drivingly connecting the first driven wheel and the first driving wheel, a driving shaft fixedly connected to the output end of the second motor, a gear fixedly connected to the driving shaft rotatably connected to the driving shaft, a driven shaft rotatably connected to the bracket, an idler wheel fixedly connected to the driven shaft, the gear meshing with the idler wheel, a second driving wheel fixedly connected to the driven shaft, a second rotating shaft rotatably connected to the bracket, a second driven wheel fixedly connected to the second rotating shaft, and a second belt drivingly connecting the second driven wheel and the second driving wheel.
[0009] Preferably, the bracket is provided with a support plate, which is in contact with the first support plate.
[0010] Preferably, a limit block is provided between the drive shaft and the driven shaft, with the gear rotatably connected to the limit block and the idler wheel rotatably connected to the limit block.
[0011] The beneficial effects of this utility model are as follows: By using a diversion plate and a return belt to transport the unscreened aggregate to the storage bin, and then the feed belt to transport the aggregate from the storage bin back to the diversion bin, multiple screenings are performed. This prevents the screen from not screening the aggregate completely in one go, which would otherwise require workers to frequently pour the unscreened aggregate back onto the screen. This saves manpower and time, increases work efficiency, and makes the aggregate screening more thorough. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of one embodiment of the concrete production aggregate screening device of this utility model.
[0013] Figure 2 This is a cross-sectional view of the storage box and the distribution box of this utility model;
[0014] Figure 3 This is a schematic diagram of the material distribution box and return belt structure of this utility model;
[0015] Figure 4 This is a cross-sectional view of the material distribution box of this utility model;
[0016] Figure 5 This is a schematic diagram of the feed belt and return belt structure of this utility model;
[0017] Figure 6 This is a schematic diagram of the transmission component structure of this utility model.
[0018] Explanation of reference numerals in the attached drawings: 1. Storage bin; 12. Feeding belt; 13. Blower; 14. Distribution bin; 15. Sealing door; 16. Diverter plate; 17. Screen; 18. Return belt; 19. First pallet; 110. Second pallet; 111. First motor; 112. Support block; 113. Control panel; 114. Fourth rotating shaft; 115. Rotating cylinder; 116. Third rotating shaft; 2. Base; 22. Second motor; 23. First drive wheel; 24. First belt; 25. First driven wheel; 26. Bracket; 27. First rotating shaft; 28. Drive shaft; 29. Gear; 210. Limit block; 211. Idler wheel; 212. Driven shaft; 213. Second drive wheel; 214. Second belt; 215. Second driven wheel; 216. Second rotating shaft. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Please see Figures 1-6 This utility model provides an embodiment of a concrete aggregate screening device, including a storage bin 1 and a base 2, and a transmission assembly mounted on the base 2. The base 2 is located on one side of the storage bin 1, and a bracket 26 is fixedly connected to the base 2. A feed belt 12 is provided between the storage bin 1 and the bracket 26. A distribution bin 14 is located on the side of the base 2 away from the storage bin 1. A blower 13 is installed on the distribution bin 14, and a screen 17 is provided inside the distribution bin 14. The blower 13 blows air to blow the aggregate onto the surface of the screen 17. A diversion plate 16 is fixedly connected inside the distribution bin 14. A return belt 18 is provided between the support 26 and the support frame. The return belt 18 is used to send the aggregate initially screened by the screen 17 back to the inside of the storage box 1, and then convey it again to the inside of the distribution box 14 through the feed belt 12. The feed belt 12 conveys the aggregate in the storage box 1 to the distribution box 14. The blower 13 and the screen 17 on the distribution box 14 screen the aggregate. The aggregate that is not screened cleanly is conveyed from the diversion plate 16 to the return belt 18. The return belt 18 sends the aggregate that is not screened cleanly back to the storage box 1. The feed belt 12 then conveys the aggregate in the storage box 1 to the distribution box 14, realizing multiple screening of the aggregate.
[0021] Please see Figures 1-6In this embodiment, a control panel 113 is fixedly connected to the storage bin 1, a sealing door 15 is rotatably connected to the distribution bin 14, a first motor 111 is installed on the blower 13, a support block 112 is fixedly connected inside the distribution bin 14, the sealing door 15 closes when the blower 13 is working to prevent fine aggregates from being blown away by the blower 13, the support block 112 is used to install the screen 17, a fourth rotating shaft 114 is rotatably connected to the storage bin 1, a first rotating shaft 27 is rotatably connected to the bracket 26, rotating cylinders 115 are fixedly connected to the fourth rotating shaft 114 and the first rotating shaft 27 respectively, and the feed belt 12 is drivenly connected to the rotating cylinder 115. Above, a third rotating shaft 116 is rotatably connected to the material distribution box 14, and a second rotating shaft 216 is rotatably connected to the bracket 26. Rotating cylinders 115 are fixedly connected to the second rotating shaft 216 and the third rotating shaft 116 respectively. The return material belt 18 is drivenly connected to the rotating cylinder 115. A first support plate 19 is rotatably connected to the fourth rotating shaft 114 and the first rotating shaft 27. A second support plate 110 is rotatably connected to the third rotating shaft 116 and the second rotating shaft 216. The first support plate 19 is used to protect the feeding belt 12 and prevent aggregate from falling from both sides of the feeding belt 12. The second support plate 110 is used to protect the return material belt 18 and prevent aggregate from falling from both sides of the return material belt 18.
[0022] Please see Figure 6In this embodiment, the transmission assembly includes a second motor 22 fixed on the base 2, a first driving wheel 23 fixedly connected to the output end of the second motor 22, a first rotating shaft 27 rotatably connected to the bracket 26, a first driven wheel 25 fixedly connected to the first rotating shaft 27, a first belt 24 drivingly connecting the first driven wheel 25 and the first driving wheel 23, a driving shaft 28 fixedly connected to the output end of the second motor 22, a gear 29 fixedly connected to the driving shaft 28, a driven shaft 212 rotatably connected to the bracket 26, an idler wheel 211 fixedly connected to the driven shaft 212, the gear 29 meshing with the idler wheel 211, a second driving wheel 213 fixedly connected to the driven shaft 212, a second rotating shaft 216 rotatably connected to the bracket 26, a second driven wheel 215 fixedly connected to the second rotating shaft 216, and a driving wheel 215 drivingly connecting the second driven wheel 215 and the second driving wheel 213. A second belt 214 is connected, and an idler wheel 211 is used to change the direction of rotation, so that the first drive wheel 23 and the second drive wheel 213 rotate in opposite directions, so that the feed belt 12 and the return belt 18 can transport aggregates in different directions. The first belt 24 and the second belt 214 can achieve long-distance power transmission and the transmission is smooth. A support plate is provided on the bracket 26. The support plate is in contact with the first support plate 19. The support plate supports the first support plate 19 and prevents the first support plate 19 from deforming under its own weight, which would affect the normal operation of the feed belt 12. A limit block 210 is provided between the drive shaft 28 and the driven shaft 212. The gear 29 is rotatably connected to the limit block 210, and the idler wheel 211 is rotatably connected to the limit block 210. The limit block 210 determines the relative position of the gear 29 and the idler wheel 211 on the drive shaft 28 and the driven shaft 212, so as to prevent the gear 29 and the idler wheel 211 from being misaligned due to vibration during rotation, resulting in incomplete meshing.
[0023] During operation, the aggregate is first poured into the storage bin 1. The second motor 22 is then turned on using the control panel 113. The second motor 22 transmits power to the first drive wheel 23 and drive shaft 28, causing them to rotate. The rotating first drive wheel 23 transmits power to the first driven wheel 25 via the first belt 24. The first driven wheel 25 drives the first rotating shaft 27 and rotating drum 115 to rotate. The rotating drum 115 drives the feed belt 12 to rotate. The rotating drive shaft 28 drives the gear 29 to rotate. The gear 29 transmits power to the idler wheel 211. The idler wheel 211 drives the driven shaft 212 to rotate. The rotating driven shaft 212 drives the second drive wheel 213 to rotate. The second drive wheel 213 transmits power to the second belt 214. The material is transferred to the second driven wheel 215, which in turn drives the second rotating shaft 216 to rotate. The second rotating shaft 216 drives the rotating drum 115 to rotate, which in turn drives the return belt 18 to rotate. The rotating feed belt 12 transports the aggregate from the storage bin 1 to the top of the distribution bin 14. The first motor 111 is started, which drives the blower 13 to rotate, generating airflow. The aggregate falls from a height and passes through the airflow generated by the blower 13, causing smaller aggregate particles to be blown through the screen 17 and fall into the distribution bin 14. Larger aggregate particles and some smaller aggregate particles that do not pass through the screen 17 fall onto the diversion plate 16, which transports the aggregate to the return belt 18. The return belt 18 then sends the aggregate back to the storage bin 1 for further screening.
[0024] Through the above steps, the feed belt 12 transports the aggregate to the storage bin 1, the blower 13 and the screen 17 screen the aggregate, the diverter plate 16 and the return belt 18 transport the aggregate that has not been screened clean back into the storage bin 1, and the feed belt 12 transports the aggregate in the storage bin 1 back to the distribution bin 14, thus realizing multiple screening of the aggregate. This solves the problem that directly pouring the aggregate onto the screen 17 for screening cannot ensure that the aggregate is screened clean in one go. It requires the staff to frequently pour the aggregate that has not been screened clean back onto the screen 17, which is a waste of manpower and time and reduces work efficiency.
Claims
1. A concrete aggregate screening device, comprising a storage bin (1) and a base (2), characterized in that: It also includes a transmission assembly set on the base (2), the base (2) is set on one side of the storage box (1), a bracket (26) is fixedly connected to the base (2), a feeding belt (12) is set between the storage box (1) and the bracket (26), a distribution box (14) is set on the side of the base (2) away from the storage box (1), a blower (13) is installed on the distribution box (14), a screen (17) is set inside the distribution box (14), the blower (13) blows the aggregate onto the surface of the screen (17), a diversion plate (16) is fixedly connected inside the distribution box (14), a return belt (18) is set between the distribution box (14) and the bracket (26), the return belt (18) is used to send the aggregate initially screened by the screen (17) back to the inside of the storage box (1), and then transport it back to the inside of the distribution box (14) through the feeding belt (12).
2. The concrete production aggregate screening device according to claim 1, characterized in that: A control panel (113) is fixedly connected to the storage box (1), a sealing door (15) is rotatably connected to the distribution box (14), a first motor (111) is installed on the blower (13), and a support block (112) is fixedly connected inside the distribution box (14).
3. The concrete aggregate screening device according to claim 1, characterized in that: A fourth rotating shaft (114) is rotatably connected to the storage bin (1), a first rotating shaft (27) is rotatably connected to the bracket (26), a rotating cylinder (115) is fixedly connected to the fourth rotating shaft (114) and the first rotating shaft (27), a feeding belt (12) is driven and connected to the rotating cylinder (115), a third rotating shaft (116) is rotatably connected to the distribution bin (14), a second rotating shaft (216) is rotatably connected to the bracket (26), a rotating cylinder (115) is fixedly connected to the second rotating shaft (216) and the third rotating shaft (116), a return belt (18) is driven and connected to the rotating cylinder (115), a first pallet (19) is rotatably connected to the fourth rotating shaft (114) and the first rotating shaft (27), and a second pallet (110) is rotatably connected to the third rotating shaft (116) and the second rotating shaft (216).
4. The concrete production aggregate screening device according to claim 1, characterized in that: The transmission assembly includes a second motor (22) fixed on the base (2), a first drive wheel (23) fixedly connected to the output end of the second motor (22), a first rotating shaft (27) rotatably connected to the bracket (26), a first driven wheel (25) fixedly connected to the first rotating shaft (27), a first belt (24) drivingly connecting the first driven wheel (25) and the first drive wheel (23), a drive shaft (28) fixedly connected to the output end of the second motor (22), and the drive shaft (28) rotatably connected to the bracket (26). A gear (29) is fixedly connected to the bracket (26), a driven shaft (212) is rotatably connected to the bracket (26), an idler wheel (211) is fixedly connected to the driven shaft (212), the gear (29) meshes with the idler wheel (211), a second driving wheel (213) is fixedly connected to the driven shaft (212), a second rotating shaft (216) is rotatably connected to the bracket (26), a second driven wheel (215) is fixedly connected to the second rotating shaft (216), and a second belt (214) is connected between the second driven wheel (215) and the second driving wheel (213).
5. The concrete production aggregate screening device according to claim 4, characterized in that: A support plate is provided on the bracket (26), and the support plate is in contact with the first support plate (19).
6. The concrete production aggregate screening device according to claim 4, characterized in that: A limit block (210) is provided between the drive shaft (28) and the driven shaft (212). The gear (29) is rotatably connected to the limit block (210), and the idler wheel (211) is rotatably connected to the limit block (210).