Roller compacted concrete test block forming device

Abstract

The utility model discloses a roller compacted concrete test block forming device, and belongs to the technical field of concrete detection test auxiliary equipment. The device comprises a rack, a vibration mechanism, a test mold, a lifting driving assembly, a bearing plate and a control assembly, the vibration mechanism is arranged on the rack, the test mold is arranged on the vibration mechanism, the lifting driving assembly is arranged on the rack, the bearing plate is connected with the lower end of the lifting driving assembly through a pressure detection assembly and located above the test mold, and the control assembly is arranged on the rack. The control assembly is arranged on the rack and electrically connected with the pressure detection assembly and the lifting driving assembly. The device can automatically control the pressure bearing plate to apply pressure intensity of 4.9 Kpa to the surface of roller compacted concrete and keep the pressure intensity, the manufacturing quality of roller compacted concrete test blocks is ensured, the automation degree is high, operation and use are convenient, and the labor intensity is remarkably reduced.

Description

Technical Field

[0001] The utility model relates to a roller compacted concrete test block forming device, belonging to the technical field of concrete detection and test auxiliary equipment. Background Art

[0002] According to the SL / T352-2020 "Testing Procedures for Hydraulic Concrete," during the production of RCC specimens, a pressure of 4.9 kPa must be applied to the surface of the specimen using a weight block or pressure plate. If the mold size changes, the weight block or pressure plate must be adjusted to ensure that the pressure applied to the RCC specimen surface remains at 4.9 kPa.

[0003] Chinese patent publication CN206170270U discloses a novel permeable concrete test block forming device, comprising a support assembly, a vibratory compaction device, and a forming assembly. The support assembly includes a vertical bracket with a bar gear, which mounts the vibratory compaction device and drives the vibratory compaction device up and down along the bar gear. The forming assembly includes a mold and a mold sleeve. This device offers the advantages of simple operation, stable forming pressure, and the ability to adjust it according to actual construction conditions.

[0004] However, when the equipment is used to make roller-compacted concrete test blocks, the vibration compaction device is moved downward by manually operating the height adjustment handle to apply pressure to the surface of the roller-compacted concrete test block. This is labor-intensive and it is difficult to ensure that the pressure applied by the vibration compaction device to the surface of the roller-compacted concrete test block is maintained at 4.9KPa. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a roller compacted concrete test block forming device.

[0006] The utility model is achieved through the following technical solutions:

[0007] A roller-compacted concrete test block forming device includes a frame, a vibration mechanism, a test mold, a lifting drive assembly, a pressure plate and a control assembly, wherein the vibration mechanism is arranged on the frame, the test mold is arranged on the vibration mechanism, the lifting drive assembly is arranged on the frame, the pressure plate is connected to the lower end of the lifting drive assembly through a pressure detection assembly, and the pressure plate is located above the test mold, and the control assembly is arranged on the frame and electrically connected to the pressure detection assembly and the lifting drive assembly.

[0008] The vibration mechanism includes a vibration platform and a vibration motor arranged at the bottom of the vibration platform, and the vibration motor is electrically connected to the control component.

[0009] The vibration mechanism is installed on the frame through a translation drive mechanism.

[0010] The translation drive mechanism includes two translation drive components arranged side by side, and the translation drive component includes a ball screw, a translation drive motor and a moving block. Both ends of the ball screw are rotatably connected to a support plate, and the support plate is fixed on the frame. The translation drive motor is arranged on the frame and electrically connected to the control component. The output shaft of the translation drive motor is connected to one end of the ball screw. The moving block is connected to the ball screw through a ball nut, and the moving block is fixed to the bottom of the vibration platform.

[0011] The lifting drive component is an electric cylinder.

[0012] The pressure detection component is a pressure sensor.

[0013] The pressure bearing plate is connected to the pressure detection component through a power-off type electromagnet.

[0014] The length and width of the pressure plate are adapted to the length and width of the inner side of the test mold.

[0015] The control component is a touch screen controller.

[0016] The frame is provided with a power switch, and the power switch is electrically connected to the control component.

[0017] The beneficial effects of the utility model are that the device can automatically control the pressure plate to apply a pressure of 4.9KPa to the surface of the roller compacted concrete and maintain the pressure, thereby ensuring the production quality of the roller compacted concrete test blocks, having a high degree of automation, being easy to operate and use, and significantly reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 3 This is a left-side structural schematic diagram of the present utility model;

[0021] Figure 4 It is a schematic diagram of the top structure of the utility model.

[0022] In the figure: 1-lifting drive assembly, 2-power switch, 3-control assembly, 4-pressure detection assembly, 5-power-off electromagnet, 6-pressure plate, 7-test mold, 8-vibration platform, 9-translation drive assembly, 91-translation drive motor, 92-support plate, 93-ball screw, 94-moving block, 10-vibration motor, 11-frame. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the described solution.

[0024] like Figures 1 to 4 As shown, the roller compacted concrete test block forming device described in the present invention includes a frame 11, a vibration mechanism, a test mold 7, a lifting drive assembly 1, a pressure plate 6 and a control assembly 3. The vibration mechanism is arranged on the frame 11, the test mold 7 is arranged on the vibration mechanism, the lifting drive assembly 1 is arranged on the frame 11, the pressure plate 6 is connected to the lower end of the lifting drive assembly 1 through the pressure detection assembly 4, and the pressure plate 6 is located above the test mold 7. The control assembly 3 is arranged on the frame 11 and is electrically connected to the pressure detection assembly 4 and the lifting drive assembly 1. During use, the device is controlled as a whole by the control assembly 3. After the RCC is added to the test mold 7, the lifting drive assembly 1 drives the pressure plate 6 and the pressure detection assembly 4 downward together. When the pressure plate 6 contacts the RCC in the test mold 7, the pressure detection assembly 4 begins to detect the pressure applied by the pressure plate 6 to the RCC. When the pressure applied by the pressure plate 6 to the RCC surface rises to 4.9 kPa, the pressure is maintained constant, and then the vibration mechanism is activated to vibrate the RCC in the test mold 7 into shape. The device can automatically control the pressure plate 6 to apply a pressure of 4.9 kPa to the RCC surface and maintain this pressure, ensuring the quality of the RCC test blocks. It has a high degree of automation, is easy to operate, and significantly reduces labor intensity.

[0025] The vibration mechanism includes a vibration platform 8 and a vibration motor 10 provided at the bottom of the vibration platform 8, and the vibration motor 10 is electrically connected to the control component 3. When in use, the vibration frequency of the vibration motor 10 is (50±3) Hz and the amplitude is (0.5±0.1) mm.

[0026] The vibration mechanism is mounted on the frame 11 via a translation drive mechanism.

[0027] The translation drive mechanism includes two translation drive assemblies 9 arranged side by side. The translation drive assembly 9 includes a ball screw 93, a translation drive motor 91, and a moving block 94. Both ends of the ball screw 93 are rotatably connected to a support plate 92, and the support plate 92 is fixedly mounted on the frame 11. The translation drive motor 91 is mounted on the frame 11 and electrically connected to the control assembly 3. The output shaft of the translation drive motor 91 is connected to one end of the ball screw 93. The moving block 94 is connected to the ball screw 93 via a ball nut, and the moving block 94 is fixedly mounted on the bottom of the vibration platform 8. During the production process of the RCC test block, when it is necessary to add a second layer of RCC to the test mold 7, the two translation drive assemblies 9 operate synchronously to push the vibration platform 8 outward, so that the test mold 7 is staggered relative to the pressure plate 6 by a certain distance, which facilitates the addition of RCC to the test mold 7.

[0028] The lifting drive component 1 is an electric cylinder.

[0029] The pressure detection component 4 is a pressure sensor.

[0030] The pressure plate 6 is connected to the pressure detection assembly 4 through a power-off type electromagnet 5. The power-off type electromagnet 5 attracts the pressure plate 6 when the power is off, and puts down the pressure plate 6 when the power is on.

[0031] The length and width of the pressure plate 6 match those of the inner side of the test mold 7. Two handles are welded side by side to facilitate its movement and replacement. The test mold 7 is a rectangular box with one side open, its dimensions customized to the test block. When in use, it is placed on the vibration platform 8 and aligned with the pressure plate 6.

[0032] The control component 3 is a touch screen controller.

[0033] The frame 11 is provided with a power switch 2, and the power switch 2 is electrically connected to the control component 3. The power switch 2 is used to control the on and off of the external power supply.

[0034] The working principle or use process of the roller compacted concrete test block forming device described in the utility model is as follows:

[0035] The inner length and width dimensions of the test mold 7 are input into the touch screen controller. The touch screen controller automatically calculates the pressure value that the pressure plate 6 needs to apply to the roller compacted concrete based on the pressure value 4.9Kpa and the inner length and width dimensions of the test mold 7, and uses this pressure value as the set pressure of the touch screen controller.

[0036] RCC is added to the test mold 7. Then, an electric cylinder drives the pressure sensor, de-energized electromagnet 5, and pressure plate 6 downward. When the pressure plate 6 contacts the RCC inside the test mold 7, the pressure sensor begins to detect the pressure applied by the pressure plate 6 on the RCC and transmits this pressure in real time to the touchscreen controller. When the actual pressure reaches the set pressure, the pressure applied by the pressure plate 6 to the RCC surface reaches 4.9 kPa, which is then maintained. Next, the vibration motor 10 is activated to vibrate and shape the RCC inside the test mold 7.

[0037] If it is necessary to add a second layer of roller-compacted concrete into the test mold 7, first turn off the vibration motor 10, then lift the pressure plate 6 to the top of the test mold 7 through the electric cylinder, and then start the two translation drive motors 91. The two translation drive motors 91 synchronously drive the vibration platform 8 outward through the ball screw 93, ball nut and moving block, so that the test mold 7 on the vibration platform 8 is staggered with the pressure plate 6 by a certain distance, which facilitates the addition of roller-compacted concrete into the test mold 7.

[0038] Similarly, after the second layer of RCC is added, the two translation drive motors 91 drive the test mold 7 to reset, and the electric cylinder drives the pressure plate 6 to move downward, continuing to apply a pressure of 4.9 KPa to the RCC surface, and starting the vibration motor 10 again until the RCC test block is formed.

Claims

1. A roller compacted concrete test block forming device, characterized by: The invention comprises a frame (11), a vibration mechanism, a test mold (7), a lifting drive assembly (1), a pressure plate (6) and a control assembly (3), wherein the vibration mechanism is arranged on the frame (11), the test mold (7) is arranged on the vibration mechanism, the lifting drive assembly (1) is arranged on the frame (11), the pressure plate (6) is connected to the lower end of the lifting drive assembly (1) through a pressure detection assembly (4), and the pressure plate (6) is located above the test mold (7), and the control assembly (3) is arranged on the frame (11) and is electrically connected to the pressure detection assembly (4) and the lifting drive assembly (1).

2. The roller compacted concrete test block forming device according to claim 1, characterized in that: The vibration mechanism comprises a vibration platform (8) and a vibration motor (10) arranged at the bottom of the vibration platform (8), and the vibration motor (10) is electrically connected to the control component (3).

3. The roller compacted concrete test block forming device according to claim 2, characterized in that: The vibration mechanism is mounted on the frame (11) via a translation drive mechanism.

4. The roller compacted concrete test block forming device according to claim 3, wherein: The translation drive mechanism comprises two translation drive assemblies (9) arranged side by side, the translation drive assembly (9) comprising a ball screw (93), a translation drive motor (91) and a moving block (94), both ends of the ball screw (93) are rotatably connected to a support plate (92), and the support plate (92) is fixedly arranged on the frame (11), the translation drive motor (91) is arranged on the frame (11) and is electrically connected to the control assembly (3), and the output shaft of the translation drive motor (91) is connected to one end of the ball screw (93), the moving block (94) is connected to the ball screw (93) through a ball nut, and the moving block (94) is fixedly arranged on the bottom of the vibration platform (8).

5. The roller compacted concrete test block forming device according to claim 1, characterized in that: The lifting drive component (1) is an electric cylinder.

6. The roller compacted concrete test block forming device according to claim 1, characterized in that: The pressure detection component (4) is a pressure sensor.

7. The roller compacted concrete test block forming device according to claim 1, wherein: The pressure-bearing plate (6) is connected to the pressure detection component (4) via a power-off type electromagnet (5).

8. The roller compacted concrete test block forming device according to claim 1, wherein: The length and width of the pressure plate (6) are adapted to the length and width of the inner side of the test mold (7).

9. The roller compacted concrete test block forming device according to claim 1, wherein: The control component (3) is a touch screen controller.

10. The roller compacted concrete test block forming device according to claim 1, wherein: A power switch (2) is provided on the frame (11), and the power switch (2) is electrically connected to the control component (3).

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