Roadbed filler performance indoor detection test equipment

Abstract

The invention relates to the technical field of roadbed fillers, in particular to indoor detection test equipment for roadbed filler performance. Comprising a drying box and a moving device, the side wall of the drying box is fixedly connected with a display screen and a control panel, the moving device is arranged on one side of the drying box and comprises a moving frame, the moving frame is located on one side of the drying box, the side wall of the moving frame is fixedly connected with a plurality of supporting plates, and the supporting plates are inserted into the inner surface of the drying box; the inner surface of the supporting plate is rotatably connected with a rotating disc, the upper surface of the rotating disc is provided with a plurality of containers, the joint of the supporting plate and the rotating disc is provided with a bearing, and the surface of the moving frame is fixedly connected with two supporting rods. The problem of heating gradient difference caused by fixed placement of samples in a traditional drying box is solved, and meanwhile particle analysis can be directly conducted after drying is completed.

Description

Technical Field

[0001] This invention relates to the field of roadbed fill technology, and more specifically, to an indoor testing device for the performance of roadbed fill. Background Technology

[0002] Subgrade filler refers to the material used to fill the subgrade structure layer of highways, railways, municipal roads and other engineering projects. Its core function is to bear the load of the upper pavement structure, transfer the load to the foundation, and ensure that the subgrade has sufficient strength, stability (resistance to deformation and water damage) and durability in long-term use.

[0003] According to existing technology, when conducting performance testing of roadbed fillers, moisture content is one of the basic indicators of roadbed materials. The electric heating drying oven is a core testing device. The moisture content of roadbed materials is accurately determined by the drying and weight reduction method. However, since the heating tubes are mostly arranged in a single-sided, bottom, or top layout, a significant temperature gradient is formed inside the oven. The temperature is higher in the area near the heating tubes and lower in the area away from the heating tubes. This can easily lead to uneven heating of the samples, affecting the test results. Summary of the Invention

[0004] This invention provides an indoor testing device for the performance of roadbed fillers. It drives a turntable to rotate at a uniform speed via a drive assembly. Combined with bearings between the turntable and support plates, and bottom support wheels, it ensures the turntable drives the container to rotate smoothly. This solves the problem of thermal gradient differences caused by the fixed placement of samples in traditional drying ovens. By integrating the sieving device with the moving frame, and using a secondary synchronous belt, the sieving drive disc and the drying turntable share the same motor drive source, eliminating the need for additional independent sieving equipment. This addresses the problem mentioned in the background art: a significant temperature gradient forms inside the chamber, with higher temperatures near the heating tubes and lower temperatures further away, which easily leads to uneven heating of the samples and affects the testing results.

[0005] To achieve the above objectives, an indoor testing device for the performance of roadbed filler includes a drying chamber and a moving device. The moving device is located on one side of the drying chamber. A display screen and a control panel are fixedly connected to the side wall of the drying chamber. The moving device includes a moving frame located on one side of the drying chamber. Multiple support plates are fixedly connected to the side wall of the moving frame. The support plates are inserted into the inner surface of the drying chamber. A turntable is rotatably connected to the inner surface of the support plates. Multiple containers are provided on the upper surface of the turntable. A bearing is provided at the connection between the support plates and the turntable. Two drive components for driving the turntable to rotate are provided on the surface of the moving frame.

[0006] Furthermore, two support rods are fixedly connected to the surface of the mobile frame, and handles are fixedly connected to the surface of the support rods.

[0007] Furthermore, the drive assembly includes two motors, the sidewalls of the two motors are fixedly connected to the sidewalls of the moving frame, the output ends of the two motors are fixedly connected to a rotating shaft, a plurality of drive wheels are fixedly connected to the surface of the rotating shaft, a driven wheel is coaxially arranged at the bottom of the turntable, and a main synchronous belt is sleeved between the drive wheel and the corresponding driven wheel.

[0008] Furthermore, the surfaces of the movable frame and the support plate are provided with storage grooves, and the main synchronous belt is disposed inside the storage groove of the movable frame.

[0009] Furthermore, the bottom end of the turntable is rotatably connected to multiple support wheels, which are rolled on the surface of the support plate.

[0010] Furthermore, the side wall of the drying oven is provided with multiple fixing components, including a guide plate. The side wall of the guide plate is fixedly connected to the side wall of the drying oven. A storage block is fixedly connected to the side wall of the movable frame near the guide plate. A sleeve block is slidably connected to the inner wall of the storage block and is fitted onto the surface of the guide plate.

[0011] Furthermore, insert blocks are inserted into the inner walls of the storage block and the sleeve block, multiple guide wheels are rotatably connected to the inner surface of the guide plate, and two support bars are fixedly connected to the side wall of the guide plate and the side wall of the drying oven.

[0012] Furthermore, the surface of the movable frame is provided with a screening device, which includes a support frame. The side wall of the support frame is fixedly connected to the side wall of the movable frame. A drive disk is rotatably connected to the inner surface of the support frame. A connecting rod is sleeved on the surface of the drive disk. A fixing ring is rotatably connected to the bottom end of the connecting rod. A secondary synchronous belt is connected to the middle of the two rotating shafts and the inside of the drive disk.

[0013] Furthermore, four support rods are fixedly connected to the upper surface of the movable frame, and an elastic band is sleeved on the surface of the support rods. The surface of the elastic band is fixedly connected to the surface of the fixing ring.

[0014] Furthermore, a sleeve is fixedly connected to the bottom end of the fixing ring, and multiple sieve discs are inserted into the inner surface of the sleeve.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: In this indoor testing equipment for the performance of roadbed fillers, the drive assembly drives the turntable to rotate at a constant speed. Combined with the bearings between the turntable and the support plate and the bottom support wheels, it ensures that the turntable drives the container to rotate smoothly. This solves the problem of thermal gradient difference caused by the fixed placement of samples in traditional drying ovens. The sieving device is integrated with the moving frame, and the sieving drive disc and the drying turntable share the same motor drive source through the secondary synchronous belt. There is no need to configure an additional independent sieving device. At the same time, particle analysis can be performed directly after drying. The elastic belt in the sieving device provides flexible buffer for the sieve disc, and the multi-layer sieve disc can separate particles of different sizes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the movable frame in this invention. Figure 3 In this invention Figure 2 A schematic diagram of the structure at point A; Figure 4 This is a top view of the drying oven in this invention. Figure 5 In this invention Figure 4 A schematic diagram of the structure at point B; Figure 6 This is a side view of the support rod structure in this invention; Figure 7 In this invention Figure 6 A schematic diagram of the structure at point C; Figure 8 In this invention Figure 6 A schematic diagram of the structure at point D.

[0017] The meanings of the labels in the diagram are as follows: 1. Drying oven; 2. Display screen; 3. Control panel; 4. Moving device; 41. Moving frame; 42. Support plate; 43. Turntable; 44. Container; 45. Support rod; 46. Handle; 47. Support wheel; 5. Drive assembly; 51. Motor; 52. Rotating shaft; 53. Drive wheel; 54. Main synchronous belt; 55. Storage slot; 6. Fixed components; 61. Guide plate; 62. Storage block; 63. Sleeve block; 64. Insert block; 65. Guide wheel; 66. Support bar; 7. Screening device; 71. Support frame; 72. Drive disc; 73. Connecting rod; 74. Fixing ring; 75. Secondary synchronous belt; 76. Support rod; 77. Elastic belt; 78. Sleeve; 79. Screening disc. Detailed Implementation

[0018] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0019] Because heating tubes are often arranged in a concentrated manner on one side, bottom, or top, a significant temperature gradient is formed inside the chamber. The temperature is higher in areas close to the heating tubes and lower in areas far from the heating tubes. This can easily lead to uneven heating of the samples, affecting the test results.

[0020] Therefore, in view of the above-mentioned problems, the present invention provides an indoor testing equipment for the performance of roadbed fillers, with reference to... Figure 1-3 As shown, the device includes a drying chamber 1 and a moving device 4. A display screen 2 and a control panel 3 are fixedly connected to the side wall of the drying chamber 1. The moving device 4 is located on one side of the drying chamber 1 and includes a moving frame 41. The moving frame 41 is located on one side of the drying chamber 1 and can move independently and flexibly, which facilitates the cleaning, maintenance and site layout adjustment of the equipment. Multiple support plates 42 are fixedly connected to the side wall of the moving frame 41. The support plates 42 are inserted into the inner surface of the drying chamber 1, which simplifies the installation and disassembly process. A turntable 43 is rotatably connected to the inner surface of the support plate 42. Multiple containers 44 are provided on the upper surface of the turntable 43. The design of multiple containers 44 can realize the separate drying of different materials, effectively avoid cross-contamination of materials, and facilitate the handling and management of individual materials. A bearing is provided at the connection between the support plate 42 and the turntable 43. Two support rods 45 are fixedly connected to the surface of the movable frame 41. The support rods 45 can support the movable frame 41. A handle 46 is fixedly connected to the surface of the support rods 45. The handle 46 can facilitate the operation of the movable frame 41. Multiple support wheels 47 are rotatably connected to the bottom of the turntable 43. The support wheels 47 are located directly above the support plate 42. The support wheels 47 provide stable support for the turntable 43 to prevent the turntable 43 from deforming due to the weight of the material it bears. On the other hand, they further assist the turntable 43 in rotating and reduce rotation energy consumption.

[0021] refer to Figure 2As shown, the surface of the mobile frame 41 is provided with two drive components 5. The symmetrical layout of the two drive components 5 can achieve balanced power distribution. The drive components 5 include two motors 51. The side walls of the two motors 51 are fixedly connected to the side walls of the mobile frame 41. The rigid fixing method can ensure the installation stability of the motors 51 during operation. The output ends of the two motors 51 are fixedly connected to the rotating shaft 52. Multiple drive wheels 53 are fixedly connected to the surface of the rotating shaft 52. A driven wheel is coaxially arranged at the bottom of the turntable (43). A main synchronous belt 54 is sleeved between the driven wheels corresponding to the drive wheels 53. The arrangement of the motors 51 and the rotating shaft 52 can drive the drive wheels 53 and the main synchronous belt 54 to rotate. The inner surface of the drive wheel 53 and the inner surface of the turntable 43 are meshed with the main synchronous belt 54. The main synchronous belt 54 transmission has the advantages of precise transmission ratio and no slippage. The surfaces of the mobile frame 41 and the support plate 42 are provided with a storage groove 55. The main synchronous belt 54 is set inside the storage groove 55 of the mobile frame 41. The opening of the storage groove 55 can store the main synchronous belt 54.

[0022] refer to Figure 4-5 As shown, the side wall of the drying oven 1 is provided with multiple fixing components 6. The distributed layout of the fixing components 6 can realize the uniform fixing of the moving frame 41 to the drying oven 1 at multiple points. The fixing component 6 includes a guide plate 61. The side wall of the guide plate 61 is fixedly connected to the side wall of the drying oven 1. The rigid fixing method can ensure the flatness and verticality of the guide plate 61 installation, and provide a precise guiding benchmark for the subsequent docking of the moving frame 41. A storage block 62 is fixedly connected to the side wall of the moving frame 41 near the guide plate 61. A sleeve block 63 is slidably connected to the inner wall of the storage block 62. The sleeve block 63 is fitted on the surface of the guide plate 61. The sliding fit structure of the guide plate 61 and the sleeve block 63 realizes the relatively accurate alignment and docking of the moving frame 41 and the drying oven 1. The sleeve block 63 is fitted onto the surface of the guide plate 61. Insert blocks 64 are inserted into the inner walls of the storage block 62 and the sleeve block 63. The detachable insertion design of the insert blocks 64 enables quick locking and unlocking of the moving frame 41 and the drying chamber 1. Multiple guide wheels 65 are rotatably connected to the inner surface of the guide plate 61. The guide wheels 65 convert the sliding friction between the sleeve block 63 and the guide plate 61 into rolling friction, which greatly reduces the frictional resistance during docking and makes the pushing and pulling of the moving frame 41 smoother and easier. Two support bars 66 are fixedly connected to the side wall of the guide plate 61 and the side wall of the drying chamber 1. The symmetrical arrangement of the two support bars 66 can further enhance the structural strength and stability of the guide plate 61.

[0023] refer to Figure 6-8As shown, the surface of the mobile frame 41 is equipped with a screening device 7, which integrates the screening function with the mobile drying structure, eliminating the need for additional independent screening equipment and enabling continuous operation from drying to screening. The screening device 7 includes a support frame 71, the side wall of which is fixedly connected to the side wall of the mobile frame 41. The inner surface of the support frame 71 is rotatably connected to a drive disk 72. The rotatable design of the drive disk 72 provides a power transmission basis for subsequent screening actions. A connecting rod 73 is sleeved on the surface of the drive disk 72, and a fixing ring 74 is rotatably connected to the bottom end of the connecting rod 73. The connecting rod 73 serves as a power transmission medium, and its rotatable connection design with the drive disk 72 and the fixing ring 74 enables power transmission. The middle of the two rotating shafts 52 and the inside of the drive disk 72 are connected to a secondary synchronous belt 75. The power of the motor 51 of the drying system is reused through the secondary synchronous belt 75, eliminating the need for an additional screening drive motor, simplifying the equipment structure and reducing energy consumption. Four support rods 76 are fixedly connected to the upper surface of the movable frame 41. An elastic band 77 is sleeved on the surface of the support rods 76. The surface of the elastic band 77 is fixedly connected to the surface of the fixed ring 74. The symmetrical layout of the four support rods 76 provides stable support for the elastic band 77, ensuring that the fixed ring 74 is subjected to balanced force and avoiding tilting during the screening process. The elastic characteristics of the elastic band 77 can effectively buffer the vibration and impact generated during screening. At the same time, the deformation capability of the elastic band 77 can give the fixed ring 74 a certain degree of swing freedom, so that the screen disc 79 can produce multi-dimensional screening action. A sleeve 78 is fixedly connected to the bottom end of the fixed ring 74. Multiple screen discs 79 are inserted into the inner surface of the sleeve 78. The design of the multi-layer screen discs 79 can realize the classification and screening of materials, and multiple particle size specifications can be separated in one operation.

[0024] The working principle of this invention is as follows: The operator first pushes the moving frame 41 with the handle 46 on the surface of the moving frame 41. Utilizing the independent and flexible movement characteristics of the moving frame 41, the equipment is moved to the material loading and unloading area. At this time, the roadbed filler to be tested is classified according to the testing requirements: the material that needs to be dried is placed into multiple containers 44 on the support plate 42. At the same time, the drying temperature, time and other parameters are set through the control panel 3 on the side wall of the drying chamber 1. The display screen 2 provides real-time feedback of the set information to ensure that the process parameters are accurate and controllable. After the materials are loaded, the moving frame 41 is pushed towards the drying chamber 1. The sleeve block 63 on the side wall of the moving frame 41 slides along the guide plate 61 on the side wall of the drying chamber 1. The guide wheel 65 on the inner surface of the guide plate 61 converts sliding friction into rolling friction, reducing movement resistance and making docking smoother and easier. The flatness and verticality of the guide plate 61 provide precise guidance for docking. The sliding cooperation between the sleeve block 63 and the guide plate 61 automatically corrects the offset of the moving frame 41, achieving precise alignment. When the moving frame 41 moves to the preset position, the insert block 64 is inserted into the inner wall of the storage block 62 and the sleeve block 63 to quickly lock the moving frame 41 and the drying chamber 1, preventing displacement during operation. The double support bars 66 enhance the structural strength of the guide plate 61, and the distributed layout of multiple fixed components 6 ensures the overall structural rigidity after docking, resisting subsequent vibration and impact. After the equipment is started, the motors 51 of the two drive components 5 operate synchronously. The motors 51 are connected to the moving frame 41 through a rigid fixed structure, which ensures that the motors 51 output power stably. The shaft 52 at the output end of the motors 51 drives multiple drive wheels 53 on the surface to rotate. The drive wheels 53 drive the turntable 43 on the support plate 42 to rotate through the main synchronous belt 54. The main synchronous belt 54 meshes and transmits without slippage, ensuring that the speed of the turntable 43 is precisely synchronized with the speed of the motor 51. At the same time, the main synchronous belt 54 is stored in the storage groove 55 of the moving frame 41 and the support plate 42 to avoid contamination and wear. When the turntable 43 rotates, the bearings reduce frictional resistance, and the support wheel 47 at the bottom provides stable support and assists in rotation, causing the roadbed filler in the container 44 to evenly contact the hot airflow in the drying box 1, achieving all-round uniform drying and solving the problem of uneven heating in traditional static drying. Meanwhile, the motor 51 shaft 52 transmits power to the drive disc 72 of the screening device 7 through the secondary synchronous belt 75, realizing the synchronous linkage of drying and screening actions. The turntable 43 of the screening device 7 drives the fixed ring 74 to move through the connecting rod 73. The four support rods 76 on the moving frame 41 provide stable support for the elastic belt 77. The elastic belt 77 uses its own elastic properties to buffer vibration, while giving the fixed ring 74 multiple degrees of freedom to swing, thereby driving the multi-layer screen disc 79 in the sleeve 78 to swing at high frequency. During the swinging process, the screen disc 79 separates the roadbed filler of different particle sizes according to the size of the screen hole. Multiple particle size specifications of materials can be obtained in one operation, which greatly improves the screening efficiency and accuracy.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An indoor testing device for the performance of roadbed filler material, comprising a drying chamber (1) and a moving device (4), wherein the moving device (4) is disposed on one side of the drying chamber (1), and a display screen (2) and a control panel (3) are fixedly connected to the side wall of the drying chamber (1), characterized in that: The moving device (4) includes a moving frame (41), which is located on one side of the drying chamber (1). Multiple support plates (42) are fixedly connected to the side wall of the moving frame (41). The support plates (42) are inserted into the inner surface of the drying chamber (1). A turntable (43) is rotatably connected to the inner surface of the support plate (42). Multiple containers (44) are provided on the upper surface of the turntable (43). A bearing is provided at the connection between the support plate (42) and the turntable (43). Two drive components (5) for driving the turntable (43) to rotate are provided on the surface of the moving frame (41).

2. The indoor testing equipment for the performance of roadbed fillers according to claim 1, characterized in that: Two support rods (45) are fixedly connected to the surface of the mobile frame (41), and a handle (46) is fixedly connected to the surface of the support rods (45).

3. The indoor testing equipment for the performance of roadbed fillers according to claim 2, characterized in that: The drive assembly (5) includes two motors (51), the side walls of the two motors (51) are fixedly connected to the side wall of the moving frame (41), the output ends of the two motors (51) are fixedly connected to a rotating shaft (52), a plurality of driving wheels (53) are fixedly connected to the surface of the rotating shaft (52), a driven wheel is coaxially arranged at the bottom of the turntable (43), and a main synchronous belt (54) is sleeved between the driving wheel (53) and the corresponding driven wheel.

4. The indoor testing equipment for the performance of roadbed fillers according to claim 3, characterized in that: The surfaces of the mobile frame (41) and the support plate (42) are provided with storage slots (55), and the main synchronous belt (54) is disposed inside the storage slots (55) of the mobile frame (41).

5. The indoor testing equipment for the performance of roadbed fillers according to claim 1, characterized in that: The bottom end of the turntable (43) is rotatably connected to a plurality of support wheels (47), which are rolled on the surface of the support plate (42).

6. The indoor testing equipment for the performance of roadbed fillers according to claim 5, characterized in that: The side wall of the drying oven (1) is provided with a plurality of fixing components (6). The fixing components (6) include a guide plate (61). The side wall of the guide plate (61) is fixedly connected to the side wall of the drying oven (1). A storage block (62) is fixedly connected to the side wall of the movable frame (41) near the guide plate (61). A sleeve block (63) is slidably connected to the inner wall of the storage block (62). The sleeve block (63) is fitted onto the surface of the guide plate (61).

7. The indoor testing equipment for the performance of roadbed fillers according to claim 6, characterized in that: Insert blocks (64) are inserted into the inner walls of the storage block (62) and the sleeve block (63). Multiple guide wheels (65) are rotatably connected to the inner surface of the guide plate (61). Two support bars (66) are fixedly connected to the side wall of the guide plate (61) and the side wall of the drying oven (1).

8. The indoor testing equipment for the performance of roadbed fillers according to claim 1, characterized in that: The surface of the movable frame (41) is provided with a screening device (7), the screening device (7) includes a support frame (71), the side wall of the support frame (71) is fixedly connected to the side wall of the movable frame (41), the inner surface of the support frame (71) is rotatably connected to a drive disk (72), the surface of the drive disk (72) is fitted with a connecting rod (73), the bottom end of the connecting rod (73) is rotatably connected to a fixing ring (74), and the middle of the two rotating shafts (52) and the inside of the drive disk (72) are connected by a secondary synchronous belt (75).

9. The indoor testing equipment for the performance of roadbed fillers according to claim 8, characterized in that: Four support rods (76) are fixedly connected to the upper surface of the movable frame (41). The surface of the support rods (76) is covered with an elastic band (77), and the surface of the elastic band (77) is fixedly connected to the surface of the fixing ring (74).

10. The indoor testing equipment for the performance of roadbed fillers according to claim 8, characterized in that: A sleeve (78) is fixedly connected to the bottom end of the fixing ring (74), and a plurality of sieve discs (79) are inserted into the inner surface of the sleeve (78).

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