Adjustable road roller vibration test sensor mounting and fixing device

Abstract

The utility model relates to the field of engineering sites, in particular to an adjustable road roller vibration test sensor mounting and fixing device which comprises a telescopic hydraulic cylinder, an adjustable acceleration sensor fixer and an adjustable road roller roller bearing fixer. According to the application, fixation of the acceleration sensor of the road roller in the high-frequency vibration process is established by combining different road roller models and different acceleration sensor sizes, the compaction degree of the road roller on the road surface in the high-frequency vibration process is researched, real-time monitoring of the vibration frequency of the road roller in the compaction process is facilitated, and the road surface compaction degree of the road roller in the high-frequency vibration process is improved. The whole pavement compaction process is known, and the method has important significance for researching compaction quality control, and is beneficial to accurately detecting data and accelerating the construction progress.

Description

Technical Field

[0001] The present application relates to the technical field of engineering sites, and in particular to an adjustable installation and fixing device for a vibration test sensor of a road roller. Background Art

[0002] The smoothness of a road surface depends on the compaction of the roadbed during construction. This compaction is closely related to the compaction level of the roller. A key factor in determining compaction level lies in real-time monitoring of the vibration frequency and amplitude of the roller during compaction. Accelerometers are typically used to measure road surface compaction, but this approach has two drawbacks. First, the accelerometer is typically attached to the roller bearing via solid glue, preventing direct contact between the accelerometer and the roller bearing, preventing accurate measurement data. Second, the accelerometer cannot be easily disassembled, and disassembly often leaves behind some solid glue, making it difficult to clean and affecting the next use of the accelerometer. Therefore, finding a simple way to attach the accelerometer is crucial. Utility Model Content

[0003] The technical problem to be solved by this application is to provide a device that fixes the acceleration sensor to monitor the vibration frequency of the roller. By continuously monitoring the vibration frequency of the roller during high-frequency operation, relevant information about the compaction degree of the road surface is obtained, which plays a role in quickly studying the compaction quality, accurately detecting data and accelerating the construction progress.

[0004] An adjustable roller vibration test sensor installation and fixing device includes a telescopic hydraulic cylinder, an adjustable acceleration sensor holder, and an adjustable roller roller bearing holder;

[0005] The telescopic hydraulic cylinder comprises a hydraulic cylinder, a bottom support, a hydraulic rod buckle, and the hydraulic cylinder and the bottom support are welded;

[0006] The adjustable acceleration sensor holder includes a fixed leg, a guide rod and a movable sleeve, wherein the fixed leg is connected to the bottom support and the other end is connected to the guide rod, and the other end of the guide rod is connected to the movable sleeve;

[0007] The adjustable roller bearing holder includes a bottom pad, a guide rod and a movable sleeve, wherein the movable sleeve passes through the hydraulic cylinder and is connected to the guide rod, and the other end of the guide rod is connected to the gasket;

[0008] Preferably, the telescopic hydraulic cylinder comprises a through-type hydraulic rod, and a rigid pad is installed at the bottom of the hydraulic rod;

[0009] Preferably, the hydraulic rod buckle can fix the through-type hydraulic rod and can be adjusted according to the position of the through-type hydraulic rod;

[0010] Preferably, the fixed leg is a curved leg with a groove at the bottom, a hollowed-out upper surface in the middle, and penetrations on both sides. One end of the guide rod is placed in the hollowed-out area and connected to the fixed leg by a bolt. The other end of the guide rod is connected to the movable sleeve by a bolt. The movable sleeve passes through the hydraulic cylinder and is fixed by a bolt.

[0011] Preferably, the bottom pad is a rigid pad fixed to the roller bearing of the roller, the pad is connected to one end of the guide rod by a bolt, and the other end of the guide rod is connected to the movable sleeve by a bolt;

[0012] Preferably, rotatable bearings are installed at both ends of the guide rod, and are connected to the fixed legs, the rigid pad and the movable sleeve respectively through bolts;

[0013] At the same time, this technical solution also discloses a method for continuous dynamic monitoring of vibration frequency and compaction degree during high-frequency vibration of a road roller, using the above-mentioned adjustable road roller vibration test sensor installation and fixing device, and the specific steps are as follows:

[0014] a. Assemble the fixture. Connect the adjustable roller bearing fixture to the roller bearing. Adjust the movable sleeve so that the movable acceleration sensor fixture is close to the roller bearing. Tighten the sleeve bolt. Adjust the movable sleeve of the acceleration sensor fixture so that the grooves in the fixing legs tightly clamp the four corners of the acceleration sensor. Press the hydraulic lever to press the acceleration sensor against the roller bearing and secure the hydraulic lever buckle.

[0015] b. Connect the acceleration sensor to the microcomputer automatic data acquisition instrument through a wire;

[0016] c. Start the roller and the microcomputer automatic data acquisition device, and monitor the vibration frequency of the roller and the compaction degree of the road surface through the collected data.

[0017] Compared with the prior art, the present invention is beneficial in that:

[0018] 1. This application combines the continuous real-time monitoring of the vibration frequency of the roller drum through the acceleration sensor during high-frequency vibration of the roller at the construction site, establishes the installation and fixing method of the acceleration sensor during high-frequency vibration of the roller, studies the vibration frequency of the roller drum during high-frequency vibration, and dynamically monitors the compaction degree of the roadbed and pavement when the roller is working. It helps to monitor the compaction degree of the roadbed and pavement and understand the entire process of pavement compaction, which is of great significance for controlling the compaction degree of the roadbed and pavement.

[0019] 2. The vibration frequency of the roller drum is measured by directly contacting the acceleration sensor with the roller drum bearing, making the measured data more accurate.

[0020] 3. The adjustable acceleration sensor holder and roller bearing holder can be used to adapt to acceleration sensors of different sizes and rollers of different models, and its application range is wider.

[0021] 4. The through-type hydraulic rod is equipped with a hydraulic rod clip to ensure that the hydraulic rod will not loosen during the high-frequency vibration of the roller, ensuring that the acceleration sensor can fit tightly against the roller drum bearing, thereby making the measured data more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of this application;

[0023] Figure 2 This is a schematic diagram of the structure of the adjustable acceleration sensor holder of the present application;

[0024] Figure 3 This is a schematic diagram of the hydraulic rod buckle of this application.

[0025] In the figure: 1. Through-type hydraulic rod, 2. Hydraulic cylinder, 3. Movable sleeve, 4. Movable sleeve fixing bolt, 5. Guide rod, 6. Pressure relief valve, 7. Bolt, 8. Rigid pad, 9. Bottom support, 10. Rigid pad of roller bearing, 11. Rotatable fixed leg bolt, 12. Fixed leg, 1201. Rotatable bearing, 1202. Bottom groove of fixed leg, 13. Telescopic rod, 14. Buckle. DETAILED DESCRIPTION

[0026] The accompanying drawings are for illustrative purposes only. To better illustrate the present embodiment, certain components of the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the dimensions of the actual product. Terms such as "upper," "lower," "left," "right," "side," and "outer" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Certain well-known structures and their descriptions may be omitted from the accompanying drawings, and therefore, they should not be construed as limitations on this application.

[0027] To facilitate understanding of the technical means, creative features, objectives, and effects achieved by this application, the application is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application. This application will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1 As shown, an adjustable roller vibration test sensor installation and fixing device includes a telescopic hydraulic cylinder, an adjustable acceleration sensor holder, and an adjustable roller roller bearing holder;

[0029] The telescopic hydraulic cylinder includes a hydraulic cylinder 2, a bottom support 9, hydraulic rod buckles 13, 14, and the hydraulic cylinder 2 is welded to the bottom support 9;

[0030] The adjustable acceleration sensor holder includes a fixed leg 12, a guide rod 5 and a movable sleeve 3. The fixed leg 12 is connected to the bottom support 9 by a bolt 7, and the other end is connected to the guide rod 5. The other end of the guide rod 5 is connected to the movable sleeve 3 by a bolt 7.

[0031] The adjustable roller bearing holder includes a bottom pad 10, a guide rod 5 and a movable sleeve 3. The movable sleeve 3 passes through the hydraulic cylinder 2 and is connected to the guide rod 5 by a bolt 7. The other end of the guide rod 5 is connected to the roller bearing rigid pad 10 by a bolt 7.

[0032] like Figure 1 、 Figure 3 As shown, the rigid pad 8 is the part that directly contacts the surface of the acceleration sensor. During use, the extension and retraction force of the through-type hydraulic rod 1 should be controlled to avoid damage to the acceleration sensor, and the buckle 14 should be ensured to fix the telescopic rod 13 to ensure that the acceleration sensor is firmly fixed. During the disassembly process, the pressure relief valve 6 should be rotated first to relieve the pressure of the through-type hydraulic rod 1, and then the buckle 14 should be pressed to separate the telescopic rod 13 and the through-type hydraulic rod 1 from the roller bearing. The pad diameter is 0.5 cm;

[0033] like Figure 1 As shown, the movable sleeve fixing bolt 4 is a fixed sleeve device. After adjusting the position, the bolt should be tightened to avoid loosening during the operation of the roller.

[0034] The roller bearing rigid pad 10 is a component that is in direct contact with the roller bearing of the road roller. When fixing it, the entire component should be kept in the center of the roller bearing.

[0035] like Figure 1 、 Figure 2 As shown, the fixed leg 12 is a curved leg, with a rotatable bearing 1201 installed on the upper part, a groove 1202 provided on the bottom, a hollowed-out upper surface in the middle part, and penetrations on both sides. One end of the guide rod 5 is placed in the hollowed-out area and is connected to the fixed leg 12 through a rotatable fixed leg bolt 11. The other end of the guide rod 5 is connected to the movable sleeve 3 through a bolt 7. The movable sleeve 3 passes through the hydraulic cylinder 2 and is fixed by the movable sleeve fixing bolt 4.

[0036] like Figure 2 As shown, the hollowed-out upper surface of the fixed leg 12 and the through-areas on both sides can be designed in size according to the actual project and their strength can be guaranteed.

[0037] In the description of this application, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0038] Other matters not mentioned adopt common practices in the prior art and will not be described in detail here.

[0039] Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present application should also fall within the scope of protection of the present application.

Claims

1. An adjustable roller vibration test sensor mounting and fixing device, characterized in that: It includes a telescopic hydraulic cylinder, an adjustable acceleration sensor holder, and an adjustable roller bearing holder; The telescopic hydraulic cylinder comprises a hydraulic cylinder, a bottom support, a hydraulic rod buckle, and the hydraulic cylinder and the bottom support are welded; The adjustable acceleration sensor holder includes a fixed leg, a guide rod and a movable sleeve, wherein the fixed leg is connected to the bottom support and the other end is connected to the guide rod, and the other end of the guide rod is connected to the movable sleeve; The adjustable roller bearing fixer includes a bottom pad, a guide rod and a movable sleeve. The movable sleeve runs through the hydraulic cylinder and is connected to the guide rod. The other end of the guide rod is connected to the gasket.

2. The adjustable roller vibration test sensor mounting and fixing device according to claim 1, characterized in that: The telescopic hydraulic cylinder comprises a through-type hydraulic rod, and a rigid pad is installed at the bottom of the hydraulic rod.

3. The adjustable roller vibration test sensor mounting and fixing device according to claim 1, characterized in that: The hydraulic rod buckle can fix the through-type hydraulic rod and can be adjusted according to the position of the through-type hydraulic rod.

4. The adjustable roller vibration test sensor mounting and fixing device according to claim 1, characterized in that: The fixed leg is a curved leg with a groove at the bottom, a hollowed-out upper surface in the middle, and penetrations on both sides. One end of the guide rod is placed in the hollowed-out area and connected to the fixed leg by a bolt. The other end of the guide rod is connected to the movable sleeve by a bolt. The movable sleeve passes through the hydraulic cylinder and is fixed by bolts.

5. The adjustable roller vibration test sensor mounting and fixing device according to claim 1, characterized in that: The bottom pad is a rigid pad fixed to the roller bearing of the roller. The pad is connected to one end of the guide rod through bolts, and the other end of the guide rod is connected to the movable sleeve through bolts.

6. An adjustable roller vibration test sensor mounting and fixing device according to claim 3 or 4, characterized in that: Rotatable bearings are installed at both ends of the guide rod and are connected to the fixed legs, the rigid pad and the movable sleeve respectively through bolts.

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