Vibration sensor field installation auxiliary device

Abstract

The utility model relates to the technical field of road intelligent construction, in particular to a vibration sensor field installation auxiliary device which comprises an upper structure, a middle structure and a lower structure. The upper structure is connected with the vibration sensor and provides a rigid connection base for installation of the vibration sensor. The upper structure and the lower structure are connected through the middle structure; and the lower structure is rigidly connected with an inherent nut of a vibrating shaft of the vibratory roller. According to the utility model, the working shaft of the vibration sensor can be installed perpendicular to the road surface through the flexible angle adjustment of the vibration sensor, and meanwhile, the rigid connection between the vibration sensor and the vibration shaft of the road roller solves the problem that the sensor cannot be effectively installed in a gluing or magnetic attraction manner due to high temperature generated by long-time work of the vibration shaft; compared with a mounting mode of welding and bolt punching, the vibration sensor can be fixedly mounted on the road roller by utilizing the original structure of the road roller while the vibration sensor is stably mounted, and the original structure of the road roller cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent road construction, in particular to an on-site installation auxiliary device for a vibration sensor. Background Art

[0002] In the field of road engineering construction, compaction plays an important role as an important indicator for evaluating road construction quality. If the quality of road compaction in the early stage does not meet the standards, different types and degrees of defects will occur in the road structure, further affecting its driving comfort and overall service level. Traditional compaction detection methods are difficult to achieve real-time, continuous, and comprehensive detection, and will waste a lot of manpower, material resources, and financial resources. With the application of intelligent construction technology in the field of road engineering construction, intelligent continuous detection technology for road compaction has become the main content of research. Intelligent detection technology for road compaction is based on the working principle of vibration sensors, the compaction mechanism of road materials, and the working principle of vibratory rollers. The working axis of the vibration sensor is installed vertically on the road surface in a rigid connection on the vibration axis of the roller. The vibration signal fed back by the road during the compaction process is collected in real time to judge the compaction state of the current compaction layer. Vibration sensors play an important role in vibration signal collection, and the accuracy of their collected data also has an important impact on explaining the compaction status of the road. If the installation of the vibration sensor does not meet the technical requirements, it will inevitably cause deviations in the collected data and even directly affect the accurate judgment of the current compaction index of the road. To ensure the accuracy of the signal collected by the vibration sensor, the vibration sensor needs to be effectively installed on the vibration shaft of the roller.

[0003] The main installation methods of vibration sensors include glue bonding, magnetic base adsorption, bolt punching connection and welding. Although the principle of glue bonding is simple, it is necessary to clean the dirt and rust on the installation site in advance, and the installation process is relatively cumbersome. The thicker the glue is applied, the longer the glue needs to solidify. Even when the roller is working for a long time, the glue is easily affected by high temperature and melts, and the installation stability of the vibration sensor cannot be guaranteed. The connection method of the magnetic base is more convenient and faster than glue bonding, but it also faces the problem of high temperature environment. Once the magnetic base loses its magnetism due to high temperature, the sensor cannot achieve accurate data collection through effective installation. The limitations of the two installation methods can easily cause the invalid installation of vibration sensors in complex construction sites, and there is also the possibility that the sensor will fall off or be lost during use. If the sensor is installed by bolt punching, the vibration signal detection effect will be improved, but the reality of damage to the installation equipment is also unavoidable. In addition, there are strict requirements for the opening method and opening size of the bolt hole, otherwise the sensor may form a loose connection due to the mismatch between the screw and the screw hole. Theoretically, the welding connection method of the sensor is more ideal. The rigid connection method does not need to worry about installation stability and can accurately collect vibration signals. However, its disadvantages are that it will cause certain damage to the installation equipment and has high requirements for welding technology. Due to the obvious disadvantages of bolt drilling and welding, the installation methods of the two are restricted by the installation environment or the sensor itself.

[0004] In summary, during the installation process, vibration sensors must comprehensively consider issues such as coping with high temperature and heat environments, rigid connection requirements for accurate data collection, and installation of the sensor's working axis perpendicular to the road surface. Currently, various types of vibratory rollers provide installation environments for sensors with varying degrees of uncertainty. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an auxiliary device for on-site installation of a vibration sensor, which can realize installation of the working axis of the vibration sensor perpendicular to the road surface through its own flexible angle adjustment.

[0006] The specific technical solutions are as follows:

[0007] A vibration sensor on-site installation auxiliary device comprises an upper structure, a middle structure and a lower structure; the upper structure is connected with the vibration sensor to provide a rigid connection base for the installation of the vibration sensor; the middle structure connects the upper and lower structures; the lower structure is rigidly connected with the inherent nut of the vibration shaft of the vibrating roller.

[0008] The lower structure is provided with a groove adapted to the inherent nut of the vibration shaft of the vibrating roller from the bottom end inward, so that the groove can be sleeved on the inherent nut of the vibration shaft of the vibrating roller;

[0009] A first spherical groove is provided at the top of the lower structure, which is connected to the middle structure and enables the middle structure to freely rotate at all angles in the first spherical groove.

[0010] The lower structure is in the shape of a hexagonal prism as a whole.

[0011] A bolt hole connected to the middle structure is arranged at the bottom end of the first spherical groove.

[0012] The overall appearance of the middle structure is designed to be spherical; a through-length slot is provided in the middle position of the upper part of the middle structure; cutouts are provided on the outer side of the middle structure parallel to the direction of the through-length slot and symmetrically distributed on both sides of the through-length slot, and a circular arc curved groove is provided inside the middle structure. The bottom shape of the middle structure is a spherical structure that matches the first spherical groove of the lower structure, and the middle structure rotates freely within a certain plane in the first spherical groove; a connecting bolt through hole is provided inside the middle structure, and the first bolt passes through the bolt through hole and the bolt hole to realize a bolt rigid connection between the middle structure and the lower structure.

[0013] The side of the lower structure is radially distributed with pressure fixing bolts and pressure bolt holes around the center evenly, at the same height and at equal intervals. Pressure is applied inwardly through the pressure fixing bolts to fix them with the inherent nuts on the vibration shaft of the roller.

[0014] A second spherical groove is provided at the bottom end of the upper structure, and the upper part of the middle structure is correspondingly inserted into the second spherical groove; a second bolt hole is provided at the top end of the upper structure, and the second bolt is inserted into the arc surface groove of the middle structure through the second bolt hole through the full-length slot to be rigidly connected to the upper structure.

[0015] The second bolt passes through the upper structure and can be threadedly connected to the vibration sensor with a screw hole. The vibration sensor is externally connected to the collection device and transmits the vibration signal to the collection device through a wire.

[0016] Limit blocks are symmetrically arranged on both sides of the second spherical groove. When the upper part of the middle structure is correspondingly inserted into the second spherical groove, the limit blocks cooperate with the cutouts of the middle structure to limit the range of movement of the upper structure.

[0017] The beneficial effects of the utility model are as follows: the utility model provides an auxiliary device for on-site installation of a vibration sensor, which can realize the installation of the working axis of the vibration sensor perpendicular to the road surface through its own flexible angle adjustment. At the same time, the rigid connection between the vibration sensor and the vibration shaft of the roller solves the problem that the sensor cannot be effectively installed by gluing or magnetic attraction due to the high temperature generated by the long-term operation of the vibration shaft. Compared with the installation methods of welding and bolt drilling, the utility model can realize the stable installation of the vibration sensor and can be fixedly installed on the roller using the original structure of the roller without causing damage to the original structure of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the connection structure between the auxiliary device and the sensor of the utility model;

[0019] Figure 2 It is an auxiliary device for on-site installation of the vibration sensor in the utility model;

[0020] Figure 3 The lower structure of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 4 The lower structure of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 5 It is a schematic diagram of the middle structure of the utility model;

[0023] Figure 6 It is a schematic diagram of the upper structure of the utility model;

[0024] Figure 7 It is a schematic diagram of the connection structure between the upper structure and the middle structure of the utility model;

[0025] Among them, 1. vibration sensor; 9. first bolt; 10. second bolt; 11. second bolt hole; 12. upper structure; 13. second spherical groove; 14. limit block; 21. arc curved groove; 22. bolt through hole; 23. spherical structure; 24. connection; 25. middle structure; 26. through-length slot; 31. first spherical groove; 32. lower structure; 33. pressurized fixing bolt; 34. inherent nut; 35. bolt hole; 36. hexagonal prism groove; 37. pressurized bolt hole. DETAILED DESCRIPTION

[0026] In order to better explain the present invention and facilitate understanding, the following Figure 1-7 , through specific implementation methods, the technical scheme and effects of the utility model are described in detail.

[0027] like Figure 1 , Figure 2 As shown, this embodiment provides a vibration sensor on-site installation auxiliary device, including an upper structure 12, a middle structure 25 and a lower structure 32; the upper structure 12 can provide a rigid connection base for the installation of the vibration sensor 1 by adjusting a suitable angle in a vertical plane; the middle structure 25 connects the upper and lower structures 32 by flexible three-dimensional angle adjustment; the lower structure 32 realizes a rigid connection with the vibration shaft of the vibratory roller;

[0028] like Figure 1-Figure 4As shown, in this embodiment, the lower structure 32 is in the shape of a hexagonal prism as a whole, and a first spherical groove 31 is provided at the top, which is convenient for connecting with the middle structure 25 and can realize the full-angle free rotation of the middle structure 25 in the first spherical groove 31. The bottom end of the first spherical groove 31 is provided with a bolt hole 35 connected with the middle structure 25, and the lower structure 32 can be rigidly connected with the middle structure 25 through the first bolt 9 after adjusting the angle of the middle structure 25 through the bolt hole 35. The lower structure 32 is provided with a hexagonal prism groove 36 adapted to the inherent nut 34 of the vibration shaft of the vibrating roller from the bottom end to the inside, so that the hexagonal prism groove 36 can be sleeved on the inherent nut 34 of the vibration shaft of the vibrating roller; the side of the lower structure 32 is evenly, uniformly, and equally spaced around the center and radially distributed with pressure fixing bolts 33 and pressure bolt holes 37, and the pressure fixing bolts 33 are used to apply pressure inward to fix the pressure fixing bolts 33 with the inherent nut 34 on the vibration shaft of the roller.

[0029] like Figure 5 As shown, in this embodiment, in order to ensure that the middle structure 25 can be better connected with the upper structure 12 and the lower structure 32 and realize the free rotation of the angle during the connection process, the overall appearance of the middle structure 25 is designed to be spherical.

[0030] A through-length slot 26 is provided at the middle position of the upper part of the middle structure 25. When the middle structure 25 is connected to the upper structure 12, the upper structure 12 can rotate at a large angle in a vertical plane along the through-length slot 26. After rotating to a suitable angle, the middle structure 25 can be connected to the upper structure 12 by bolts through the through-length slot 26. In parallel with the through-length slot 26, the outer side of the middle structure 25 is provided with cutouts symmetrically distributed on both sides of the through-length slot 26; the inside of the middle structure 25 is provided with a circular arc surface cutout 21, through which the second bolt 10 can be placed, and the through-length slot 26 can be passed to achieve a rigid connection with the upper structure 12; at the same time, the weight of the middle structure 25 is reduced. The bottom shape of the middle structure 25 is a spherical structure 23 that matches the first spherical groove 31 of the lower structure 32. The spherical structure 23 fits the connection 24 of the first spherical groove 31 together, so that the middle structure 25 can rotate freely in a certain plane in the first spherical groove 31. The middle structure 25 is provided with connecting bolt through holes 22 inside to achieve a bolt rigid connection between the middle structure 25 and the lower structure 32 .

[0031] like Figure 6 , Figure 7As shown, in this embodiment, a second spherical groove 13 is provided at the bottom of the upper structure 12, and a stopper 14 is symmetrically provided on both sides of the second spherical groove 13, so that when the upper part of the middle structure 25 is correspondingly inserted into the second spherical groove 13, the stopper 14 cooperates with the cutout of the middle structure 25, and the range of motion of the upper structure 12 is limited by the stopper 14, so that it can only rotate at an angle within the plane where the through-length slot 26 of the middle structure 25 is located. Due to the different inclination angles of the inherent nut 34 on the vibration shaft of the vibratory roller, in order to realize the installation of the vibration sensor 1 perpendicular to the road surface and collect more accurate feedback signals of the road surface compaction, it is necessary to effectively adjust the various parts of the auxiliary device to achieve the expected goal. When the upper surface of the upper structure 12 is adjusted to a horizontal plane and fixed, a platform can be provided for the installation of the sensor. A second bolt hole 11 is provided at the top of the upper structure 12, so that the upper structure 12 is rigidly connected to the through-length slot 26 of the middle structure 25 by passing the second bolt 10 through the second bolt hole 11. In this embodiment, the second bolt 10 passes through the upper structure 12 and can be threadedly connected to the vibration sensor 1 with a screw hole. The vibration sensor 1 is externally connected to a collection device and transmits the vibration signal to the collection device through a wire.

[0032] The specific installation steps of this utility model are as follows:

[0033] S1. Select a fixed nut 34 suitable for installing the hexagonal prism-shaped groove 36 at the bottom end of the lower structure 32 on the vibration shaft of the road roller;

[0034] S2. The hexagonal prism-shaped groove 36 at the bottom end of the lower structure 32 is put on the inherent nut 34, and three pressure fixing bolts 33 are respectively inserted through the corresponding pressure bolt holes 37 and fixed with pressure, so that the lower structure 32 maintains a stable and rigid connection with the vibration shaft of the roller through the action of the pressure fixing bolts 33;

[0035] S3, place the spherical structure 23 at the bottom of the middle structure 25 in the first spherical groove 31 at the top of the lower structure 32, and rotate the angle of the middle structure 25 according to the inclination angle of the inherent nut 34 on the vibration shaft; when the bolt through hole 22 of the middle structure 25 corresponds to and penetrates the bolt hole 35 of the lower structure 32, adjust the position of the through-length slot 26 of the middle structure 25 so that the plane where the through-length slot 26 is located coincides with the vertical plane where the inclination angle of the inherent nut 34 of the vibration shaft is located, so that the upper structure 12 can rotate along the plane where the through-length slot 26 is located, overcome the inclination angle of the inherent nut, until the upper structure 12 rotates to a horizontal state, providing a horizontal plane for the installation of the sensor 1; finally, the middle structure 25 and the lower structure 32 are rigidly fixed with bolts through the bolt hole 35 and the bolt through hole 22;

[0036] S4. According to the position of the limit block 14, the second spherical groove 13 of the upper structure 12 is aligned with the top of the middle structure 25, so that the top of the middle structure 25 enters the second spherical groove 13 of the upper structure 12 under the restriction of the limit block 14; this process not only realizes the connection between the upper structure 12 and the middle structure 25, but also limits the activity space of the upper structure 12, so that it can only rotate within the vertical plane where the through-length notch 26 of the middle structure 25 is located;

[0037] S5, the upper structure 12 is rotated along the opening direction of the through-length slot 26 until the upper structure 12 itself is perpendicular to the road surface; after adjusting the angle, the middle structure 25 can be rigidly connected with the second bolt hole 11 of the upper structure 12 through the through-length slot 26; at this point, the on-site installation auxiliary device of the vibration sensor 1 is installed on the vibration shaft of the roller;

[0038] S6. After the auxiliary device is installed, the vibration sensor 1 is placed on the upper end surface of the superstructure 12, and the sensor can be fixed with bolts after being aligned with the second bolt hole 11; and the vibration sensor 1 is also installed perpendicular to the road surface, so that the collected vibration signal is more accurate.

Claims

1. A vibration sensor on-site installation auxiliary device, characterized in that: The upper structure, the middle structure and the lower structure; the upper structure is connected with the vibration sensor to provide a rigid connection base for the installation of the vibration sensor; the middle structure connects the upper and lower structures; the lower structure is rigidly connected with the inherent nut of the vibration shaft of the vibratory roller.

2. The vibration sensor on-site installation auxiliary device according to claim 1, characterized in that: The lower structure is provided with a groove matched with the inherent nut of the vibration shaft of the vibrating roller from the bottom end inward, so that the groove can be sleeved on the inherent nut of the vibration shaft of the vibrating roller.

3. The vibration sensor on-site installation auxiliary device according to claim 2, characterized in that: A first spherical groove is provided at the top of the lower structure, which is connected to the middle structure and enables the middle structure to freely rotate at all angles in the first spherical groove.

4. The vibration sensor on-site installation auxiliary device according to claim 2, characterized in that: The lower structure is in the shape of a hexagonal prism as a whole.

5. The vibration sensor on-site installation auxiliary device according to claim 3, characterized in that: A bolt hole connected to the middle structure is arranged at the bottom end of the first spherical groove.

6. The vibration sensor on-site installation auxiliary device according to claim 1, characterized in that: The overall appearance of the middle structure is designed to be spherical; a through-length slot is provided in the middle position of the upper part of the middle structure; cutouts are provided on the outer side of the middle structure parallel to the direction of the through-length slot and symmetrically distributed on both sides of the through-length slot, and a circular arc curved groove is provided inside the middle structure. The bottom shape of the middle structure is a spherical structure that matches the first spherical groove of the lower structure, and the middle structure rotates freely within a certain plane in the first spherical groove; a connecting bolt through hole is provided inside the middle structure, and the first bolt passes through the bolt through hole and the bolt hole to realize a bolt rigid connection between the middle structure and the lower structure.

7. The vibration sensor on-site installation auxiliary device according to claim 2, characterized in that: The side of the lower structure is radially distributed with pressure fixing bolts and pressure bolt holes around the center evenly, at the same height and at equal intervals. Pressure is applied inwardly through the pressure fixing bolts to fix them with the inherent nuts on the vibration shaft of the roller.

8. The vibration sensor on-site installation auxiliary device according to claim 6, characterized in that: A second spherical groove is provided at the bottom end of the upper structure, and the upper part of the middle structure is correspondingly inserted into the second spherical groove; a second bolt hole is provided at the top end of the upper structure, and the second bolt is inserted into the arc surface groove of the middle structure through the second bolt hole through the full-length slot to be rigidly connected to the upper structure.

9. The vibration sensor on-site installation auxiliary device according to claim 8, characterized in that: The second bolt passes through the upper structure and can be threadedly connected to the vibration sensor with a screw hole. The vibration sensor is externally connected to the collection device and transmits the vibration signal to the collection device through a wire.

10. The vibration sensor on-site installation auxiliary device according to claim 9, characterized in that: Limit blocks are symmetrically arranged on both sides of the second spherical groove. When the upper part of the middle structure is correspondingly inserted into the second spherical groove, the limit blocks cooperate with the cutouts of the middle structure to limit the range of movement of the upper structure.

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