A fixed-point compression pressure measuring device for highway subgrade
A technology for measuring devices and roadbeds, applied in measuring devices, applying stable tension/pressure to test the strength of materials, infrastructure engineering, etc., can solve problems such as inaccuracy, single data, and affecting the judgment of road pressure, so as to improve accuracy performance, ensuring stability, and improving the accuracy of judgment
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Embodiment 1
[0042] Considering that when the mounting frame 1 is fixing the position of the pressing device 2, it is necessary to ensure that the pressing device 2 can rotate normally, so as to avoid the influence of the angular rotation of the pressing device 2 in the vertical direction when the mounting frame 1 is fixing the position of the pressing device 2. refer to Figure 3-Figure 6The mounting frame 1 includes a mounting plate 11. Two straight columns 12 are fixed on the upper side of the mounting plate 11 near the middle. The two straight columns 12 are connected to each other by two sliding plates 14. The sliding plates 14 are provided with arc grooves. 15. A through slot 13 is provided near the middle of the mounting plate 11. The pressing device 2 includes a collar 21. The collar 21 is hinged inside the through slot 13. The position where the collar 21 is rotated in the through slot 13, and the hydraulic rod 22 is installed in the collar 21, and the hydraulic rod 22 is slidably...
Embodiment 2
[0050] Considering that the road is often run over by the wheels of the car in the process of using figure 2 , the fitting device 5 is semi-arc, and the fitting device 5 and the pressure sensor 23 are fixedly connected. When the hydraulic rod 22 squeezes the road, the piston rod in the hydraulic rod 22 stretches out to drive the fitting device. 5. Make the bottom of the fitting device 5 fit with the ground. After the fitting is completed, the angle adjustment device 3 drives a point of the hydraulic rod 22 to rotate, so that the piston rod of the hydraulic rod 22 drives the fitting device 5 to rotate on the ground. During the rotation of the device 5, the sliding column 26 slides in the arc groove 15, and the piston rod of the hydraulic rod 22 continues to extend outward to ensure the stable contact between the fitting device 5 and the road surface, and the pressure sensor 23 records the pressure data, Repeat several times, change the pressure of the hydraulic rod 22 on the f...
Embodiment 3
[0052] Considering that when the pressing device 2 squeezes the road surface, the device will be pushed up by the hydraulic rod 22, so that the pressure data measured by the pressure sensor 23 will become smaller, which will affect the accuracy of road pressure measurement. Figure 10-Figure 11 , A positioning device 6 is provided at the four corners of the mounting plate 11. The positioning device 6 includes a fiber rope 61 whose one end is fixed on the side wall of the mounting plate 11, and the other end of the fiber rope 61 is connected with a fixing column 62. One side of the fixing column 62 is fixed The thorn cone 63 is driven by the thorn cone 63 into the ground, and the fiber rope 61 pulls the mounting plate 11, so that the device will not move when the hydraulic rod 22 squeezes the ground, and at the same time, in order to increase the thorn cone 63 into the soil For the adhesion between the middle back and the soil, an empty groove is set between the thorn cone 63 an...
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