Railway engineering roadbed soil body dynamic strain testing device

Abstract

The utility model discloses a kind of railway engineering roadbed soil body dynamic strain testing devices, including mounting plate, installation through-hole, mounting bracket, cross shaft, sensor, communication cable, cable stabilizing frame, mounting plate body is processed with installation through-hole, mounting plate body positioning weld mounting bracket, mounting bracket is positioned installation with sensor through cross shaft, sensor bottom positioning installation communication cable, communication cable and the cable stabilizing frame of cross shaft are positioned butt joint installation, a kind of railway engineering roadbed soil body dynamic strain testing device, the installation structure protection operation of the present device design is applicable to communication cable, cable stabilizing frame's traction spring frame does cable limiting frame elastic traction, traction spring frame can realize the multi-angle adjustment of cable limiting frame, after communication cable and the arc cable limiting sleeve inner diameter butt joint installation twist the limiting bolt rod of transversely placed connecting rod, cable position is limited, at this time, cable is not excessively bent with good protection effect in the arc cable limiting sleeve inner diameter limitation.

Description

Technical Field

[0001] This utility model relates to a dynamic strain testing device for railway engineering subgrade soil, belonging to the technical field of dynamic strain testing of soil. Background Technology

[0002] Dynamic strain testing of railway subgrade soil involves the coordinated operation of multiple devices, mainly including sensors, data acquisition, power transmission, and auxiliary equipment. Vibrating wire strain gauges are sensors that measure the strain of structures or soil based on changes in the frequency of string vibration. They feature good long-term stability, strong anti-interference capabilities, and suitability for harsh environments, and are widely used in strain monitoring of railway subgrades, bridges, dams, and other engineering projects. However, traditional vibrating wire strain gauges lack limiting devices in their communication cables, making them prone to bending and damage over prolonged use. Utility Model Content

[0003] The purpose of this invention is to provide a dynamic strain testing device for railway engineering subgrade soil to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a dynamic strain testing device for railway engineering subgrade soil, comprising a mounting plate, a mounting through hole, a mounting bracket, a horizontal axis, a sensor, a communication cable, and a cable stabilizing frame. The mounting plate has a mounting through hole, and the mounting bracket is welded to the mounting plate. The mounting bracket is positioned and installed with the sensor via the horizontal axis. The communication cable is positioned and installed at the bottom of the sensor. The communication cable is positioned and connected to the cable stabilizing frame of the horizontal axis.

[0005] Preferably, the cable stabilizing frame consists of a mounting sleeve, a horizontal plate, a traction spring frame, and a cable limiting frame. The side end of the mounting sleeve is connected to the horizontal plate by screws, and the traction spring frame and cable limiting frame are positioned and installed at the center of the horizontal plate.

[0006] Preferably, the cable limiting frame consists of a positioning mounting plate, an arc-shaped cable limiting sleeve, a horizontal connecting rod, and a limiting bolt rod. The arc-shaped cable limiting sleeve is welded to the front of the positioning mounting plate, and a horizontal connecting rod is welded to the center of the top of the arc-shaped cable limiting sleeve. The threaded through hole of the horizontal connecting rod is threadedly connected to the limiting bolt rod for installation.

[0007] Preferably, the sensor has multiple sets of data sensors built-in.

[0008] Compared with the prior art, the beneficial effects of this utility model are: The cable stabilizing frame consists of an installation sleeve, a horizontal plate, a traction spring frame, and a cable limiting frame. The cable limiting frame consists of a positioning installation plate, an arc-shaped cable limiting sleeve, a horizontal connecting rod, and a limiting bolt rod. The traction spring frame allows for multi-angle adjustment of the cable limiting frame. After the communication cable is installed by mating with the inner diameter of the arc-shaped cable limiting sleeve, the limiting bolt rod of the horizontal connecting rod is turned to limit the position of the cable. At this time, the cable will not be excessively bent within the inner diameter limit of the arc-shaped cable limiting sleeve. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the dynamic strain testing device for railway engineering subgrade soil according to the present invention; Figure 2 This is a schematic diagram of the installation structure of the dynamic strain testing device for railway engineering subgrade soil according to this utility model; Figure 3 This is a schematic diagram of the cable stabilizing frame of this utility model; Figure 4 This is a schematic diagram of the cable limiting frame of this utility model.

[0010] In the diagram: 1. Mounting plate, 2. Mounting through hole, 3. Mounting bracket, 4. Horizontal axis, 5. Sensor, 6. Communication cable, 7. Cable stabilizer, 8. Mounting sleeve, 9. Horizontal plate, 10. Traction spring frame, 11. Cable limit frame, 12. Positioning mounting plate, 13. Arc-shaped cable limit sleeve, 14. Horizontal connecting rod, 15. Limiting bolt rod. Detailed Implementation

[0011] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0012] like Figures 1-4 As shown, a dynamic strain testing device for railway subgrade soil includes a mounting plate 1, a mounting through hole 2, a mounting bracket 3, a horizontal axis 4, a sensor 5, a communication cable 6, and a cable stabilizing frame 7. The mounting plate 1 has a mounting through hole 2. The mounting bracket 3 is welded to the mounting plate 1 for positioning. The mounting bracket 3 is positioned and installed with the sensor 5 via the horizontal axis 4. The communication cable 6 is positioned and installed at the bottom of the sensor 5. The communication cable 6 is positioned and connected to the cable stabilizing frame 7 of the horizontal axis 4 for positioning and installation.

[0013] The cable stabilizing frame 7 consists of a mounting sleeve 8, a horizontal plate 9, a traction spring frame 10, and a cable limiting frame 11. The side end of the mounting sleeve 8 is connected to the horizontal plate 9 by screws. The traction spring frame 10 and the cable limiting frame 11 are positioned at the center of the horizontal plate 9. The traction spring frame 10 can realize multi-angle adjustment of the cable limiting frame 11.

[0014] The cable limiting frame 11 consists of a positioning mounting plate 12, an arc-shaped cable limiting sleeve 13, a horizontal connecting rod 14, and a limiting bolt rod 15. The arc-shaped cable limiting sleeve 13 is welded to the front of the positioning mounting plate 12. A horizontal connecting rod 14 is welded to the center of the top of the arc-shaped cable limiting sleeve 13. The threaded through hole of the horizontal connecting rod 14 is threadedly connected to the limiting bolt rod 15. After the communication cable 6 is connected to the inner diameter of the arc-shaped cable limiting sleeve 13, the limiting bolt rod 15 of the horizontal connecting rod 14 is turned to limit the position of the cable. At this time, the cable will not be excessively bent within the inner diameter of the arc-shaped cable limiting sleeve 13, which has a good protective effect.

[0015] The sensor 5 is equipped with multiple sets of data sensors to perform dynamic strain testing of railway engineering subgrade soil.

[0016] Specific application method: A dynamic strain testing device for railway engineering subgrade soil. This device is designed for the installation structure protection of communication cables. The traction spring frame of the cable stabilizing frame acts as an elastic traction for the cable limiting frame. The traction spring frame can realize multi-angle adjustment of the cable limiting frame. After the communication cable is installed with the inner diameter of the arc-shaped cable limiting sleeve, the limiting bolt of the horizontal connecting rod is turned to limit the position of the cable. At this time, the cable will not be excessively bent within the inner diameter of the arc-shaped cable limiting sleeve, thus having a good protective effect.

[0017] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A dynamic strain testing device for railway engineering subgrade soil, characterized in that, The system includes a mounting plate (1), mounting through holes (2), mounting brackets (3), a horizontal axis (4), a sensor (5), a communication cable (6), and a cable stabilizer (7). The mounting plate (1) has mounting through holes (2) machined on its body. The mounting brackets (3) are welded to the mounting plate (1) for positioning. The mounting brackets (3) are positioned and installed with the sensor (5) via the horizontal axis (4). The communication cable (6) is positioned and installed at the bottom of the sensor (5). The communication cable (6) is positioned and connected with the cable stabilizer (7) of the horizontal axis (4) for positioning and installation.

2. The dynamic strain testing device for railway engineering subgrade soil according to claim 1, characterized in that: The cable stabilizing frame (7) consists of an installation sleeve (8), a horizontal plate (9), a traction spring frame (10), and a cable limiting frame (11). The side end of the installation sleeve (8) is connected to the horizontal plate (9) by screws. The traction spring frame (10) and the cable limiting frame (11) are positioned and installed at the center of the horizontal plate (9).

3. The dynamic strain testing device for railway engineering subgrade soil according to claim 2, characterized in that: The cable limiting frame (11) consists of a positioning mounting plate (12), an arc-shaped cable limiting sleeve (13), a horizontal connecting rod (14), and a limiting bolt rod (15). The positioning mounting plate (12) is welded with an arc-shaped cable limiting sleeve (13) in front. The arc-shaped cable limiting sleeve (13) is welded with a horizontal connecting rod (14) at the center of the top of the arc-shaped cable limiting sleeve (13). The threaded through hole of the horizontal connecting rod (14) is threadedly connected to the limiting bolt rod (15).

4. The dynamic strain testing device for railway engineering subgrade soil according to claim 1, characterized in that: The sensor (5) has multiple sets of data sensors built in.

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