Foamed asphalt warm-mixing mixture working performance measuring device

Abstract

The utility model discloses a device for measuring the working performance of a foamed asphalt warm-mixing mixture, and relates to the technical field of asphalt production. Comprising a charging barrel, a measuring device is installed on the inner wall of the charging barrel, the measuring device comprises a measuring structure and a lifting structure capable of driving the measuring device to ascend and descend, a controller is installed on the outer wall of the charging barrel, the measuring structure and the lifting structure are both electrically connected with the controller, and the lifting structure comprises a storage plate fixed to the bottom of the charging barrel; a threaded rod is rotationally connected to the storage plate, a lifting plate is in threaded connection to the threaded rod, and limiting rods are symmetrically fixed to the inner wall of the charging barrel and are in sliding connection with the lifting plate. According to the utility model, the measuring structure can be inserted into the asphalt material to measure the temperature in real time, the measuring effect is accurate, and the height of the measuring structure is controlled through the lifting structure, so that the temperature of the asphalt material at different depths can be measured, the temperature data can be obtained more comprehensively, and a worker can adjust the temperature more favorably.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt production, in particular to a device for measuring the working performance of foamed asphalt warm mix materials. Background Art

[0002] Cold recycling technology has become a widely adopted environmentally friendly technology in recent years. Depending on the asphalt stabilization material, it can be divided into foamed asphalt cold recycling technology and emulsified asphalt cold recycling technology. Both technologies can be used for both the base and subsurface layers of pavement. As an alternative surface material for low-grade and rural roads, cold-mix asphalt offers numerous advantages: energy and resource conservation, extended construction seasons, and improved construction conditions. For emulsified asphalt stabilization materials, as the emulsified asphalt breaks, the mixture begins to develop strength, which can affect the paving and compaction of the foamed asphalt warm mix.

[0003] This Chinese invention patent, authorized with publication number "CN214472443U," features a simple structure and easy disassembly. By measuring torque, it accurately calculates the shear stress of the foamed asphalt warm mix, providing a visual indicator of the mix's workability. A circular groove, which mates with the circular protrusion, is located at the bottom of the loading container. This secures both sides of the shear blade's connecting rod, ensuring more stable rotation and reducing the risk of equipment damage.

[0004] However, the above solution lacks an effective device for measuring the temperature of the asphalt mixture, a key factor influencing the foaming effect. Increasing the temperature of the asphalt mixture has two effects: first, increasing the fluidity of the asphalt; second, providing the heat energy required for the vaporization of the water phase. Raising the asphalt temperature facilitates asphalt foaming. Generally, asphalt foaming is difficult below 120°C, so real-time measurement of asphalt temperature is crucial. This utility model proposes a novel solution to this problem. Utility Model Content

[0005] The purpose of the utility model is to provide a device for measuring the working performance of foamed asphalt warm mix mixture to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for measuring the working performance of foamed asphalt warm mix mixture, comprising a charging barrel, a measuring device installed on the inner wall of the charging barrel, the measuring device comprising a measuring structure and a lifting structure capable of driving the measuring device to rise and fall, a controller installed on the outer wall of the charging barrel, the measuring structure and the lifting structure are both electrically connected to the controller, the lifting structure comprises a placing plate fixed to the bottom of the charging barrel, a threaded rod is rotatably connected to the placing plate, a lifting plate is screwed on the threaded rod, a limit rod is symmetrically fixed on the inner wall of the charging barrel, the limit rod is slidably connected to the lifting plate, the measuring structure is fixed on the lifting plate, and a transmission structure that drives the threaded rod to rotate is provided on the top of the charging barrel.

[0007] Preferably, the transmission structure includes a driven bevel gear welded to the top end of the threaded rod. A lifting motor is provided on the outer wall of the charging bucket. The output end of the lifting motor is fixedly connected with a driving bevel gear meshing with the driven bevel gear. The lifting motor is electrically connected to the controller.

[0008] Preferably, the measuring structure includes a mounting plate fixed on the lifting plate. A vertical plate is fixedly provided on the mounting plate. A rotating rod is rotatably connected to the top of the vertical plate. A measuring motor is fixedly connected to the back of the vertical plate. The output end of the measuring motor is fixed to one end of the rotating rod. A retaining ring is fixedly connected to the front end of the rotating rod. Retaining rods are integrally formed symmetrically on the retaining ring. A rotating plate is arranged between the retaining ring and the front surface of the vertical plate. The top of the rotating plate is rotatably connected to one end of the rotating rod. A limiting rod is fixedly connected to the middle of the rotating plate. The limiting rod is located directly below the retaining ring. A horizontal rod is rotatably connected to the bottom of the rotating plate. A vertical rod is fixedly connected to the bottom of the horizontal rod. A striking column is rotatably connected to the bottom of the vertical rod. A top plate and a bottom plate are fixedly connected to the middle and bottom of the front surface of the vertical plate in sequence. Holes for the striking column to pass through are formed on both the top plate and the bottom plate. A tension spring is vertically arranged between the top plate and the bottom plate. The tension spring is sleeved on the striking column. A fixing ring is fixedly connected to the bottom of the striking column. The bottom end of the tension spring is fixed to the fixing ring. The top end of the tension spring is fixed to the top plate. A temperature sensor is installed at the bottom of the striking column. Both the temperature sensor and the measuring motor are electrically connected to the controller.

[0009] Preferably, the sum of the radius of the retaining ring and the width of the retaining rod is greater than the distance from the center of the retaining ring to the center of the limiting rod.

[0010] Preferably, a bearing is installed at the bottom of the rotating plate. One end of the horizontal rod is limited in the bearing and rotatably connected to the bearing.

[0011] Preferably, a mounting block is fixedly connected to the bottom of the vertical rod. A cavity is formed on one side of the mounting block. A connecting plate adapted to the cavity is welded to the top of the striking column. The connecting plate and the mounting block are rotatably connected through a pin shaft.

[0012] Preferably, limiting grooves are formed on one side of the limiting rods. Rectangular blocks adapted to the limiting grooves are symmetrically fixed on the lifting plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The working performance measuring device for warm-mixed foamed asphalt mixture can insert the set measuring structure into the asphalt material for real-time temperature measurement, and the measurement effect is accurate. By controlling the height of the measuring structure through the lifting structure, the temperature of the asphalt material at different depths can be measured, and temperature data can be obtained more comprehensively, which is more conducive for the staff to adjust the temperature, thereby improving the production rate of asphalt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic three-dimensional structure diagram of the present utility model;

[0016] Figure 2 Schematic three-dimensional structure diagram of the measuring device of the present utility model;

[0017] Figure 3 Schematic three-dimensional structure diagram of the lifting structure of the present utility model;

[0018] Figure 4 Schematic three-dimensional structure diagram of the measuring structure of the present utility model.

[0019] In the figure: 1, charging bucket; 2, controller; 3, measuring device; 4, lifting structure; 401, placing plate; 402, threaded rod; 403, lifting plate; 405, driven bevel gear; 406, driving bevel gear; 407, lifting motor; 5, measuring structure; 501, vertical plate; 502, rotating rod; 503, rotating plate; 504, retaining ring; 505, retaining rod; 506, limiting rod; 507, bearing; 508, cross bar; 509, vertical bar; 510, mounting block; 511, top plate; 512, bottom plate; 513, striking column; 514, tension spring; 515, fixing ring; 516, measuring motor; 517, mounting plate; 518, temperature sensor; 6, limiting rod; 601, limiting groove. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figures 1-4As shown in the figure, the utility model provides a technical solution: a working performance measuring device for warm-mixed foamed asphalt mixture, which includes a loading bucket 1. A measuring device 3 is installed on the inner wall of the loading bucket 1. The measuring device 3 includes a measuring structure 5 and a lifting structure 4 capable of driving the measuring device 3 to lift. A controller 2 is installed on the outer wall of the loading bucket 1. Both the measuring structure 5 and the lifting structure 4 are electrically connected to the controller 2. The lifting structure 4 includes a placement plate 401 fixed at the bottom of the loading bucket 1. A threaded rod 402 is rotatably connected to the placement plate 401. A lifting plate 403 is screwed onto the threaded rod 402. Limiting rods 6 are symmetrically fixed on the inner wall of the loading bucket 1. The limiting rods 6 are slidably connected to the lifting plate 403. The measuring structure 5 is fixed on the lifting plate 403. A transmission structure for driving the threaded rod 402 to rotate is provided at the top of the loading bucket 1. It should be noted that a stirring structure is installed in the loading bucket 1, which is prior art and will not be described again. It should be known that limiting grooves 601 are formed on one side of each limiting rod 6. Rectangular blocks adapted to the limiting grooves 601 are symmetrically fixed on the lifting plate 403. In this way, the lifting plate 403 will be limited by the limiting rods 6 and can only move up and down.

[0022] As a specific embodiment, the transmission structure includes a driven bevel gear 405 welded to the top end of the threaded rod 402. A lifting motor 407 is provided on the outer wall of the loading bucket 1. The output end of the lifting motor 407 is fixedly connected with a driving bevel gear 406 meshing with the driven bevel gear 405. The lifting motor 407 is electrically connected to the controller 2. Specifically, when it is necessary to adjust the height of the measuring structure 5, first, the controller 2 controls the lifting motor 407 to start. The lifting motor 407 drives the driving bevel gear 406 to rotate. Since the driving bevel gear 406 meshes with the driven bevel gear 405, it can drive the driven bevel gear 405 and the threaded rod 402 to rotate. Also, because the lifting plate 403 is screwed onto the threaded rod 402 and the lifting plate 403 is slidably connected to the limiting rods 6, the lifting plate 403 can be made to move downward. When the rotation direction of the lifting motor 407 is adjusted, the lifting plate 403 can be made to move upward, thereby realizing the adjustment of the height of the measuring structure 5.

[0023] As a specific embodiment, the measuring structure 5 includes a mounting plate 517 fixed on the lifting plate 403. A vertical plate 501 is vertically fixed on the mounting plate 517. A rotating rod 502 is rotatably connected to the top of the vertical plate 501. A measuring motor 516 is fixedly connected to the back of the vertical plate 501. The output end of the measuring motor 516 is fixed to one end of the rotating rod 502. A retaining ring 504 is fixedly connected to the front end of the rotating rod 502. Two retaining rods 505 are symmetrically and integrally formed on the retaining ring 504. A rotating plate 503 is arranged between the retaining ring 504 and the front of the vertical plate 501. The top of the rotating plate 503 is rotatably connected to one end of the rotating rod 502. A limiting rod 506 is fixedly connected to the middle of the rotating plate 503. The limiting rod 506 is located directly below the retaining ring 504. A horizontal rod 508 is rotatably connected to the bottom of the rotating plate 503. A vertical rod 509 is fixedly connected to the bottom of the horizontal rod 508. A striking column 513 is rotatably connected to the bottom of the vertical rod 509. A top plate 511 and a bottom plate 512 are sequentially fixedly connected to the middle and the bottom of the front of the vertical plate 501. Through holes for the striking column 513 to pass through are formed on both the top plate 511 and the bottom plate 512. A tension spring 514 is vertically arranged between the top plate 511 and the bottom plate 512. The tension spring 514 is sleeved on the striking column 513. A fixing ring 515 is fixedly connected to the bottom of the striking column 513. The bottom end of the tension spring 514 is fixed on the fixing ring 515. The top end of the tension spring 514 is fixed on the top plate 511. A temperature sensor 518 is installed at the bottom of the striking column 513. Both the temperature sensor 518 and the measuring motor 516 are electrically connected to the controller 2.

[0024] It should be noted that the controller 2 controls the measuring motor 516 to work. The measuring motor 516 drives the rotating rod 502 to rotate, and then drives the retaining ring 504 to rotate together. Moreover, the sum of the radius of the retaining ring 504 and the width of the retaining rod 505 is greater than the distance from the center of the retaining ring 504 to the center of the limiting rod 506. In this way, when the retaining ring 504 rotates, the retaining rod 505 will be blocked by the limiting rod 506, causing the rotating plate 503 to rotate together, making the retaining ring 504 drive the striking column 513 to move upward. At the same time, the bearing 507 is rotatably connected to the horizontal rod 508 while the mounting block 510 is rotatably connected to the striking column 513. When the striking column 513 moves upward, the tension spring 514 is in a compressed state. When the limiting rod 506 rotates from the bottom of the retaining ring 504 to the top of the retaining ring 504, under the traction of the tension spring 514, the striking column 513 will drive the temperature sensor 518 to quickly fall and insert into the asphalt mixture.

[0025] As a specific embodiment, the sum of the radius of the retaining ring 504 and the width of the retaining rod 505 is greater than the distance from the center of the retaining ring 504 to the center of the limiting rod 506. It should be particularly noted that since the sum of the radius of the retaining ring 504 and the width of the retaining rod 505 is greater than the distance from the center of the retaining ring 504 to the center of the limiting rod 506, when the retaining ring 504 rotates, the retaining rod 505 will be blocked by the limiting rod 506.

[0026] As a specific embodiment, a bearing 507 is installed at the bottom of the rotating plate 503, and one end of the horizontal rod 508 is limited in the bearing 507 and is rotatably connected to the bearing 507. It should be noted that by installing the bearing 507, the rotation efficiency of the horizontal rod 508 can be improved and the friction force can be reduced.

[0027] As a specific embodiment, a mounting block 510 is fixedly connected to the bottom of the vertical rod 509. A cavity is formed on one side of the mounting block 510. A connecting plate adapted to the cavity is welded to the top of the striking column 513, and the connecting plate is rotatably connected to the mounting block 510 through a pin shaft.

[0028] Particularly, when measuring the temperature of the asphalt mixture, first, the controller 2 controls the lifting structure 4 to move downward a certain distance, and then the measuring structure 5 is turned on. The striking column 513 on the measuring structure 5 will drive the temperature sensor 518 to quickly fall and insert into the asphalt mixture. Then, the measuring motor 516 pauses working, and the temperature sensor 518 will display the temperature value in the controller 2 in real time. After the temperature sensor 518 finishes measuring, the measuring motor 516 continues to work to extract the temperature sensor 518 from the asphalt mixture. In addition, the controller 2 controls the lifting structure 4 to be able to adjust the height of the measuring structure 5, so as to be able to measure the temperature of the asphalt mixture at different depths.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Foamed asphalt warm mix mixture working performance measuring device, including a loading bucket (1), characterized in that: A measuring device (3) is installed on the inner wall of the charging bucket (1). The measuring device (3) includes a measuring structure (5) and a lifting structure (4) capable of driving the measuring device (3) to lift. A controller (2) is installed on the outer wall of the charging bucket (1). Both the measuring structure (5) and the lifting structure (4) are electrically connected to the controller (2). The lifting structure (4) includes a placement plate (401) fixed to the bottom of the charging bucket (1). A threaded rod (402) is rotatably connected to the placement plate (401). A lifting plate (403) is screwed onto the threaded rod (402). Limiting rods (6) are symmetrically fixed to the inner wall of the charging bucket (1). The limiting rods (6) are slidably connected to the lifting plate (403). The measuring structure (5) is fixed to the lifting plate (403). A transmission structure for driving the threaded rod (402) to rotate is provided at the top of the charging bucket (1).

2. The device for measuring the working performance of warm-mix foamed asphalt mixture according to claim 1, wherein: The transmission structure includes a driven bevel gear (405) welded to the top end of the threaded rod (402). An elevating motor (407) is provided on the outer wall of the charging bucket (1). The output end of the elevating motor (407) is fixedly connected to a driving bevel gear (406) meshing with the driven bevel gear (405). The elevating motor (407) is electrically connected to the controller (2).

3. The device for measuring the working performance of warm mix foam asphalt mixture according to claim 1, wherein: The measuring structure (5) includes a mounting plate (517) fixed to the lifting plate (403). A vertical plate (501) is vertically fixed to the mounting plate (517). A rotating rod (502) is rotatably connected to the top of the vertical plate (501). A measuring motor (516) is fixedly connected to the back of the vertical plate (501). The output end of the measuring motor (516) is fixed to one end of the rotating rod (502). A retaining ring (504) is fixedly connected to the front end of the rotating rod (502). Retaining rods (505) are integrally formed symmetrically on the retaining ring (504). A rotating plate (503) is provided between the retaining ring (504) and the front surface of the vertical plate (501). The top of the rotating plate (503) is rotatably connected to one end of the rotating rod (502). A limiting rod (506) is fixedly connected to the middle of the rotating plate (503). The limiting rod (506) is located directly below the retaining ring (504). A horizontal rod (508) is rotatably connected to the bottom of the rotating plate (503). A vertical rod (509) is fixedly connected to the bottom of the horizontal rod (508). A striking column (513) is rotatably connected to the bottom of the vertical rod (509). A top plate (511) and a bottom plate (512) are sequentially fixedly connected to the middle and bottom of the front surface of the vertical plate (501). Holes for the striking column (513) to pass through are formed in both the top plate (511) and the bottom plate (512). A tension spring (514) is vertically arranged between the top plate (511) and the bottom plate (512). The tension spring (514) is sleeved on the striking column (513). A fixing ring (515) is fixedly connected to the bottom of the striking column (513). The bottom end of the tension spring (514) is fixed to the fixing ring (515). The top end of the tension spring (514) is fixed to the top plate (511). A temperature sensor (518) is installed at the bottom of the striking column (513). Both the temperature sensor (518) and the measuring motor (516) are electrically connected to the controller (2).

4. The working performance measuring device for warm mix foam asphalt mixture according to claim 3, wherein: The sum of the radius of the retaining ring (504) and the width of the retaining rod (505) is greater than the distance from the center of the retaining ring (504) to the center of the limit rod (506).

5. The device for measuring the working performance of warm-mix foamed asphalt mixture according to claim 3, wherein: A bearing (507) is installed at the bottom of the rotating plate (503), and one end of the horizontal rod (508) is limited in the bearing (507) and is rotatably connected to the bearing (507).

6. The device for measuring the working performance of warm mix foam asphalt mixture according to claim 3, characterized in that: A mounting block (510) is fixedly connected to the bottom of the vertical rod (509). A cavity is provided on one side of the mounting block (510). A connecting plate adapted to the cavity is welded to the top of the striking column (513), and the connecting plate is rotatably connected to the mounting block (510) through a pin shaft.

7. The device for measuring the working performance of warm mix foamed asphalt mixture according to claim 1, wherein: Limit grooves (601) are provided on one side of the limit rods (6), and rectangular blocks adapted to the limit grooves (601) are symmetrically fixed on the lifting plate (403).

Images