Highway pavement base mixture grading device
By designing a highway pavement base mix grading device with multiple screen barrels and weighing structures, the problem of easy damage to the screen and separation of screening and mixing is solved, and more efficient grading and mixing operations are achieved, reducing costs and manual operation difficulty.
Patent Information
- Application Number
- CN202421588473.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-07
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-07
AI Technical Summary
In the existing mix grading device, the screen is prone to deform or damage, the replacement cost is high, and the screening and mixing are carried out separately, making the operation troublesome.
A highway pavement base mixing grading device is designed, including a mixing box, multiple screen barrels, weighing structure and mixing structure. Screen plates are installed in the screen barrel to facilitate the addition or replacement of screen plates, improve the grading precision, and mix directly after screening to improve work efficiency.
By increasing the number of screen barrels, it is convenient to replace the screen plate and reduce costs, and mix directly after screening, improving work efficiency and reducing labor costs.
Smart Images
Figure CN222758660U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mixture gradation devices, in particular to a highway pavement base mixture gradation device. Background Art
[0002] Mixtures can be classified into continuous-graded mixtures and discontinuous-graded mixtures according to the type of aggregate grading. Continuously-graded mixtures are mixtures in which the mineral aggregates are matched in proportion according to the grading principle, from large to small particle sizes. Discontinuous-graded mixtures are mixtures in which one or several particle sizes are missing from the aggregate grading composition. At present, when screening, workers need to use a vibrating screener to continuously shake the aggregate screen, and then mix the crushed particles of different sizes according to the ratio. However, during the screening process, the screen will constantly collide with the material, and the screen will easily deform or damage over time, and the screen needs to be replaced. Most of the existing screens are fixed structures, which are more troublesome and costly to replace. In addition, the existing screening and mixing are usually carried out separately, which is more troublesome to operate.
[0003] To this end, the utility model provides a highway pavement base mixture grading device. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a highway pavement base mixture grading device to solve the problems raised in the above-mentioned background technology. The utility model can increase the number of sieve cylinders, thereby improving the precision of grading, and facilitates the replacement of the sieve plates. Only the sieve plates need to be replaced, thereby reducing costs; and after screening, the mixture can be directly mixed according to the proportion, thereby improving work efficiency and reducing labor costs.
[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a highway pavement base mixture grading device, including a mixing box, a plurality of screen drums are installed on the upper side of the mixing box, a weighing structure is installed at the bottom of the mixing box, a baffle is fixed in the mixing box, a stirring structure is rotatably matched in the mixing box, a screen plate is installed in the screen drum, the axial center of the screen plate and the axial center of the baffle are both rotatably matched with a spreading structure, the stirring structure corresponds to the spreading structure, a discharging assembly and a feeding assembly are installed in the screen drum and the mixing box, a first discharging port is opened on one side of the mixing box, and a box door is installed in the first discharging port.
[0006] Furthermore, the stirring structure includes a first rotating shaft rotatably matched in the mixing box, a mixing rod is fixed to the circumference of the first rotating shaft, a motor is fixed to the lower side of the mixing box, and an output end of the motor is fixedly connected to the first rotating shaft.
[0007] Furthermore, the paving structure includes a second rotating shaft, a scraper rod is fixed on the circumference of the second rotating shaft, a plurality of second rotating shafts are rotatably connected to the screen plate and the baffle plate respectively, and the second rotating shaft located at the axial center of the baffle plate is fixedly connected to the first rotating shaft.
[0008] Furthermore, a protrusion is fixed at one end of the second rotating shaft, and a groove is formed at the other end of the second rotating shaft, and the groove corresponds to the protrusion.
[0009] Furthermore, the weighing structure includes a weighing scale fixed to the bottom of the mixing box, and a supporting plate is fixed on the weighing scale.
[0010] Furthermore, the mixing box and the screen drum are both provided with slots, and an insert block is fixed at the bottom of the screen drum, and the insert block corresponds to the slot.
[0011] Furthermore, a mounting groove is provided in the sieve cylinder, and a mounting block is fixed on the sieve plate, and the mounting block corresponds to the mounting groove.
[0012] Furthermore, the material discharging assembly includes a material guide plate fixed in the mixing box and the screen drum, a first movable plate is slidably fitted in the screen plate and the baffle, the first movable plate is located above the material guide plate, a second material discharging port is opened on one side of the mixing box and the screen drum, and multiple first movable plates are slidably connected to the screen drum and the mixing box.
[0013] Furthermore, the material discharge assembly includes a second movable plate slidably fitted in the screen plate and a third movable plate slidably fitted in the baffle plate, the second movable plate is slidably connected to the screen drum, and the third movable plate is slidably connected to the mixing box.
[0014] Beneficial effects of the utility model: The utility model provides a highway pavement base mixture grading device, comprising a mixing box; a screen drum; a screen plate; a paving structure; and a weighing structure.
[0015] A sieve drum is installed on the upper side of the mixing box, and a sieve plate is installed inside the sieve drum. The number of sieve drums can be increased, thereby improving the precision of grading and facilitating the replacement of the sieve plate. Only the sieve plate can be replaced to reduce costs. A spreading structure is installed inside the sieve plate to facilitate screening of the mixture. A weighing structure is installed at the bottom of the mixing box, so that the mixture can be directly mixed according to the proportion after screening is completed, thereby improving work efficiency and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall assembly three-dimensional structure of a highway pavement base mixture grading device of the utility model;
[0017] Figure 2 It is a schematic diagram of the assembly cross-sectional structure of a mixing box and a screen drum in a highway pavement base mixture grading device of the utility model;
[0018] Figure 3It is a schematic diagram of the overall assembly cross-sectional structure of a highway pavement base mixture grading device of the utility model;
[0019] Figure 4 for Figure 3 Schematic diagram at A in the middle;
[0020] In the figure: 1. mixing box; 2. motor; 3. first rotating shaft; 4. weighing scale; 5. support plate; 6. mixing rod; 7. scraper rod; 8. baffle; 9. second rotating shaft; 10. groove; 11. plug block; 12. screen cylinder; 13. screen plate; 14. mounting groove; 15. mounting block; 17. first movable plate; 18. second movable plate; 19. third movable plate; 20. guide plate; 21. first discharge port; 22. second discharge port; 23. protrusion; 24. slot. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0022] See also Figures 1 to 4 The utility model provides a technical solution: a highway pavement base mixture grading device, comprising a mixing box 1, a plurality of sieve drums 12 are installed on the upper side of the mixing box 1, a weighing structure is installed at the bottom of the mixing box 1, a baffle 8 is fixed in the mixing box 1, a stirring structure is rotatably matched in the mixing box 1, a sieve plate 13 is installed in the sieve drum 12, the axial center of the sieve plate 13 and the axial center of the baffle 8 are both rotatably matched with a spreading structure, the stirring structure corresponds to the spreading structure, a discharging assembly and a feeding assembly are installed in the sieve drum 12 and the mixing box 1, a first discharging port 21 is opened on one side of the mixing box 1, and a box door is installed in the first discharging port 21.
[0023] In this embodiment, the stirring structure includes a first rotating shaft 3 rotatably engaged in the mixing box 1, a mixing rod 6 is fixed to the circumference of the first rotating shaft 3, a motor 2 is fixed to the lower side of the mixing box 1, and the output end of the motor 2 is fixedly connected to the first rotating shaft 3.
[0024] Specifically, the first rotating shaft 3 can be driven to rotate by the motor 2, thereby driving the mixing rod 6 to rotate in the mixing box 1, so as to perform mixing.
[0025] The spreading structure includes a second rotating shaft 9, a scraper rod 7 is fixed on the circumferential side of the second rotating shaft 9, and multiple second rotating shafts 9 are rotatably connected to the screen plate 13 and the baffle 8 respectively. The second rotating shaft 9 located at the axial center of the baffle 8 is fixedly connected to the first rotating shaft 3, a protrusion 23 is fixed at one end of the second rotating shaft 9, and a groove 10 is opened at the other end of the second rotating shaft 9, and the groove 10 corresponds to the protrusion 23.
[0026] Specifically, when the motor 2 drives the first rotating shaft 3 to rotate, the first rotating shaft 3 can drive the second rotating shaft 9 to rotate. The two adjacent second rotating shafts 9 are connected by the protrusion 23 and the groove 10, so they can rotate synchronously, thereby driving the scraper rod 7 to scrape on the screen plate 13 and the baffle 8, thereby screening the material.
[0027] The weighing structure comprises a weighing scale 4 fixed to the bottom of the mixing box 1 , and a supporting plate 5 is fixed on the weighing scale 4 .
[0028] Specifically, when mixing is required according to a ratio, materials of different particle sizes can be added in sequence, and the materials can be weighed by a weighing scale 4 to control the ratio of the materials, and then mixing can be performed.
[0029] A slot 24 is provided on the mixing box 1 and the sieve drum 12 , an insert block 11 is fixed at the bottom of the sieve drum 12 , and the insert block 11 corresponds to the slot 24 , a mounting groove 14 is provided in the sieve drum 12 , and a mounting block 15 is fixed on the sieve plate 13 , and the mounting block 15 corresponds to the mounting groove 14 .
[0030] Specifically, when the sieve cylinder 12 needs to be added, the insert block 11 on the sieve cylinder 12 is inserted into the slot 24 in the lower sieve cylinder 12, and the protrusion 23 on the second rotating shaft 9 is inserted into the groove 10, so that the sieve cylinder 12 can be added.
[0031] When the sieve plate 13 needs to be replaced, the sieve plate 13 only needs to be pulled upwards to separate the mounting groove 14 from the mounting block 15 and the protrusion 23 from the groove 10, and the sieve plate 13 can be removed, thereby facilitating replacement of the sieve plate 13.
[0032] The material discharging assembly includes a material guide plate 20 fixed in the mixing box 1 and the screen drum 12, and a first movable plate 17 is slidably fitted in the screen plate 13 and the baffle 8. The first movable plate 17 is located above the material guide plate 20. A second material discharging port 22 is provided on one side of the mixing box 1 and the screen drum 12. Multiple first movable plates 17 are slidably connected to the screen drum 12 and the mixing box 1 respectively.
[0033] Specifically, when only the material is to be screened, after the screening is completed, the first movable plate 17 is manually removed completely, and then the motor 2 is started to drive the scraper 7 to rotate, so that the material can be pushed into the through groove left after the first movable plate 17 is removed, and then the material falls onto the guide plate 20 and can flow out from the second discharge port 22, which is convenient for collecting the material.
[0034] The material discharge assembly includes a second movable plate 18 slidably fitted in the screen plate 13 and a third movable plate 19 slidably fitted in the baffle 8 . The second movable plate 18 is slidably connected to the screen drum 12 , and the third movable plate 19 is slidably connected to the mixing box 1 .
[0035] Specifically, when the materials need to be mixed, the third movable plate 19 at the bottom is manually slid out, and then the motor 2 is started, so that the scraper rod 7 pushes the materials into the through groove left after the third movable plate 19 is disassembled, and the materials fall into the mixing box 1. At this time, the weighing scale 4 weighs the materials to control the amount of materials, and then the first movable plate 17 at the bottom is slid out to collect the remaining materials on the baffle 8. Then the second movable plate 18 at the bottom is slid out, and the scraper rod 7 pushes the materials into the through groove left after the second movable plate 18 is disassembled, so that the materials fall onto the baffle 8. The scraper rod 7 then pushes the materials into the through groove left after the third movable plate 19 is disassembled, and the materials fall into the mixing box 1. Then the materials are proportioned by the weighing scale 4, and the remaining materials can be collected from the second discharge port 22. In this way, the second movable plate 18 and the first movable plate 17 are slid in sequence to complete the proportioning and mixing of materials of different particle sizes.
[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A road pavement base mixture grading device, comprising a mixing box (1), characterized in that: A plurality of sieve drums (12) are installed on the upper side of the mixing box (1), a weighing structure is installed at the bottom of the mixing box (1), a baffle (8) is fixed in the mixing box (1), a stirring structure is rotatably matched in the mixing box (1), a sieve plate (13) is installed in the sieve drum (12), the axial center of the sieve plate (13) and the axial center of the baffle (8) are both rotatably matched with a spreading structure, the stirring structure corresponds to the spreading structure, a discharging assembly and a feeding assembly are installed in the sieve drum (12) and the mixing box (1), a first discharging port (21) is opened on one side of the mixing box (1), and a box door is installed in the first discharging port (21).
2. A road pavement base mixture grading device according to claim 1, characterized in that: The stirring structure comprises a first rotating shaft (3) rotatably engaged in a mixing box (1), a mixing rod (6) is fixed on the circumference of the first rotating shaft (3), a motor (2) is fixed on the lower side of the mixing box (1), and an output end of the motor (2) is fixedly connected to the first rotating shaft (3).
3. A road pavement base mixture grading device according to claim 2, characterized in that: The spreading structure comprises a second rotating shaft (9), a scraper rod (7) is fixed on the circumferential side of the second rotating shaft (9), a plurality of second rotating shafts (9) are rotatably connected to the screen plate (13) and the baffle plate (8), respectively, and the second rotating shaft (9) located at the axial center of the baffle plate (8) is fixedly connected to the first rotating shaft (3).
4. A road pavement base mixture grading device according to claim 3, characterized in that: A convex block (23) is fixed to one end of the second rotating shaft (9), and a groove (10) is provided at the other end of the second rotating shaft (9), wherein the groove (10) corresponds to the convex block (23).
5. A road pavement base mixture grading device according to claim 1, characterized in that: The weighing structure comprises a weighing scale (4) fixed to the bottom of the mixing box (1), and a supporting plate (5) is fixed on the weighing scale (4).
6. A road pavement base mixture grading device according to claim 1, characterized in that: The mixing box (1) and the screen drum (12) are both provided with slots (24), and an insert block (11) is fixed at the bottom of the screen drum (12), and the insert block (11) corresponds to the slots (24).
7. A road pavement base mixture grading device according to claim 1, characterized in that: The sieve cylinder (12) is provided with a mounting groove (14), and a mounting block (15) is fixed on the sieve plate (13), wherein the mounting block (15) corresponds to the mounting groove (14).
8. A road pavement base mixture grading device according to claim 1, characterized in that: The material discharging assembly comprises a material guide plate (20) fixed in the mixing box (1) and the screen drum (12); a first movable plate (17) is slidably fitted in the screen plate (13) and the baffle plate (8); the first movable plate (17) is located above the material guide plate (20); a second material discharging port (22) is provided on one side of the mixing box (1) and the screen drum (12); and a plurality of first movable plates (17) are slidably connected to the screen drum (12) and the mixing box (1).
9. A road pavement base mixture grading device according to claim 1, characterized in that: The material discharge assembly comprises a second movable plate (18) slidably fitted in the screen plate (13) and a third movable plate (19) slidably fitted in the baffle plate (8); the second movable plate (18) is slidably connected to the screen drum (12), and the third movable plate (19) is slidably connected to the mixing box (1).