Shield measurement anti-vibration displacement compensation device

Abstract

The utility model discloses a shield measurement anti-vibration displacement compensation device, which comprises a total station placing bracket, a bracket anchoring component and a supporting plate connected with the total station placing bracket and the bracket anchoring component, the bracket anchoring component comprises a damping arm and a mounting seat, one end of the damping arm is fixedly connected with a suspension lifting lug, and the other end of the damping arm is fixedly connected with a support. The other end of the suspension lifting lug is arranged in the mounting seat, and a duct piece bolt hole is formed in the suspension lifting lug; the total station placing bracket comprises a fixed platform, a micro servo driver and a displacement compensation control unit for controlling the micro servo driver, a plurality of supporting legs are mounted at the bottom of the fixed platform, and the micro servo controller is mounted on the supporting legs; by using the compensation adjustment function of the displacement compensation control unit, the horizontal fine adjustment of the fixed platform can be realized, thereby actively compensating the displacement deviation such as settlement in the tunnel, reducing the influence of external interference in the measurement process, and improving the reliability of the measurement result and the working efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction equipment, and in particular to a shield measurement anti-vibration displacement compensation device. Background Art

[0002] The total station is a high-precision measuring instrument used to measure horizontal angles, vertical angles and slope distances. It is widely used in key measurement tasks such as tunnel deformation monitoring, shield attitude control and tunnel guidance. When using the total station for measurement, the bracket is a key component for supporting and fixing the total station. Its stability and adjustability directly affect the accuracy and efficiency of the measurement.

[0003] Existing total station brackets usually adopt a fixed design, usually drilling holes on the pipe segments and installing simple brackets. Although the structure is simple, it has obvious limitations: first, the installation process is not only time-consuming and labor-intensive, but also the stability and reliability of the simple bracket are difficult to guarantee during long-term use, which may bring potential risks to the safety of the main structure; second, due to the strong vibration generated during the operation of mechanical equipment, the total station located on the bracket may suffer vertical displacement, increasing the complexity and difficulty of the measurement work and affecting the measurement accuracy; further, its error accumulation may also affect the construction quality of the entire tunnel.

[0004] The information disclosed in this background technology section is only used to deepen the understanding of the background technology of the present disclosure, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art. Summary of the invention

[0005] In view of at least one of the above technical problems, the present invention provides a shield measurement vibration-proof displacement compensation device, which aims to solve the problem that the existing total station bracket generates spatial displacement and vibration under construction vibration load, thereby affecting the measurement accuracy.

[0006] According to one aspect of the present disclosure, there is provided a shield measurement vibration-proof displacement compensation device, comprising a total station placement bracket for installing a total station, a bracket anchoring assembly for fixing corresponding to a shield segment, and a support plate connecting the total station placement bracket and the bracket anchoring assembly; the bracket anchoring assembly comprises a shock-absorbing arm and a mounting seat, the mounting seat is fixed to one end of the support plate, one end of the shock-absorbing arm is fixedly connected to a suspension ear and the other end is arranged in the mounting seat, and a segment bolt hole is provided on the suspension ear; the total station placement bracket comprises a fixed platform, a micro servo driver, and a displacement compensation control unit for controlling the micro servo driver, a plurality of legs are installed at the bottom of the fixed platform, and the micro servo controller is correspondingly arranged at the legs.

[0007] In some embodiments of the present disclosure, the displacement compensation control unit is disposed between the fixed platform and the support plate, and the displacement compensation control unit includes a power supply, a micro servo controller, and a pressure sensor.

[0008] In some embodiments of the present disclosure, longitudinal limit grooves are provided at corresponding positions of the mounting seat and the shock absorbing arm, the mounting seat is provided with an arcuate limit groove in a direction parallel to the support plate, a guide shaft and a rotating shaft are fixed to the lower part of the shock absorbing arm, the guide shaft is correspondingly passed through the longitudinal limit groove, and the rotating shaft is correspondingly passed through the arcuate limit groove.

[0009] In some embodiments of the present disclosure, the shock absorbing arm includes a pillar and a shock absorbing spring mounted on the pillar.

[0010] In some embodiments of the present disclosure, a stud matched with a bolt hole at the bottom of the total station is provided at the center of the fixed platform, and the legs are fixed to the support plate through a support plate.

[0011] One or more technical solutions provided in the embodiments of the present application have at least any of the following technical effects or advantages:

[0012] 1. Through the compensation adjustment of the displacement compensation control unit and the control of the extension and retraction of the micro servo drive, the horizontal fine adjustment of the fixed platform is achieved, and then the displacement deviation such as settlement in the tunnel is actively compensated to reduce the influence of external interference during the measurement process, and improve the reliability of measurement results and work efficiency.

[0013] 2. The shock-absorbing spring can effectively mitigate the impact of high-frequency, low-load vibration during shield machine excavation, while ensuring measurement accuracy and eliminating the spatial displacement caused by construction vibration load to the maximum extent.

[0014] 3. By opening the segment bolt holes on the suspension lugs, the total station can be quickly installed and moved in the shield tunnel. The installation process is not only time-consuming but also less labor-intensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the shield measurement anti-vibration displacement compensation device in one embodiment of the present application is schematically shown.

[0016] Figure 2 Schematic diagram of the structure of a displacement compensation control unit in one embodiment of the present application.

[0017] Figure 3 This is a schematic diagram of the structure of a shield measurement anti-vibration displacement compensation device in another embodiment of the present application.

[0018] In the above figures, 1 is the bolt hole of the pipe segment; 2 is the shock-absorbing spring; 301 is the longitudinal limit groove; 302 is the arc limit groove; 4 is the support plate; 5 is the displacement compensation control unit; 6 is the micro servo driver; 7 is the fixed platform; 8 is the bolt; 9 is the shock-absorbing arm; 10 is the mounting seat; 11 is the suspension ear; 12 is the support plate; 501 is the micro servo controller; 502 is the pressure sensor; 503 is the power supply. DETAILED DESCRIPTION

[0019] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", "horizontal", "clockwise", "counterclockwise", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0020] Unless otherwise specified, the unit modules, components, and structures involved in the following embodiments are conventional commercially available products.

[0021] In order to better understand the technical solution of the present application, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] This example discloses a shield measurement anti-vibration displacement compensation device, see Figure 1 and Figure 3 , including a total station placement bracket for installing the total station, a bracket anchoring assembly for fixing the shield segment correspondingly, and a support plate 4 connecting the total station placement bracket and the bracket anchoring assembly.

[0023] The bracket anchoring assembly includes a shock absorbing arm 9 and a mounting seat 10, wherein the mounting seat 10 is fixed to one end of the support plate 4, one end of the shock absorbing arm 9 is fixedly connected to a suspension ear 11, and the other end is arranged in the mounting seat 10. In the present embodiment, the mounting seat 10 is composed of two parallel trapezoidal mounting plates. In some other embodiments, the mounting seat 10 is an inverted T-shaped mounting plate, and the suspension ear 11 is provided with a segment bolt 8 hole 1, which is connected to the bolt 8 on the segment through the segment bolt 8 hole 1, so that the device can be easily installed in the shield tunnel, and a quick fixed installation effect can be achieved; the shock absorbing arm includes a pillar and a shock absorbing spring installed on the pillar. In the present embodiment, the One end of the pillar is fixedly connected to a suspension ear 11 and the other end is arranged in the mounting seat 10. The shock-absorbing spring 3 is sleeved on the shock-absorbing arm 9. In some other embodiments, one end of the pillar is arranged at a corresponding position of the mounting seat 10, and the other end is fixedly connected to a shock-absorbing spring 9. The end of the shock-absorbing spring 2 away from the pillar is fixedly connected to the suspension ear 11. Since vibration may cause slight displacement of internal parts of the total station and affect the measurement results, the shock-absorbing spring 2 can effectively absorb and disperse vibrations and impacts from the external environment, thereby reducing the interference of high-frequency, low-load vibrations during tunnel construction, protecting the total station from the influence of these vibrations, and making the measurement data more accurate and reliable.

[0024] A longitudinal limit groove 301 is provided at the corresponding positions of the mounting seat 10 and the shock absorbing arm 9, and an arcuate limit groove 302 is provided in a direction parallel to the support plate 4. A guide shaft and a rotating shaft are fixed to the lower part of the shock absorbing arm 9. The guide shaft is correspondingly penetrated through the longitudinal limit groove 301. The longitudinal limit groove 301 is used to limit the guide shaft. The rotating shaft is correspondingly penetrated through the arcuate limit groove 302. The rotary drawer is rotatably matched with the arcuate limit groove 302. After the device is installed in the shield tunnel, the position of the total station bracket can be adjusted by rotating the guide shaft and the rotating shaft, thereby realizing the leveling of the total station.

[0025] The total station placement bracket includes a fixed platform 7, a micro servo driver 6, and a displacement compensation control unit 5 for controlling the micro servo driver 6. A plurality of legs are installed at the bottom of the fixed platform 7. In the present embodiment, the legs are fixed to the support plate 4 through support plates 12. In some other embodiments, the legs are directly installed on the support plate 4, and the micro servo controller 501 is correspondingly arranged at the legs.

[0026] The total station placement bracket includes a fixed platform 7, a micro servo driver 6, and a displacement compensation control unit 5 for controlling the micro servo driver 6. A stud that matches the bolt 8 hole at the bottom of the total station is provided at the center of the fixed platform 7. The stud is threadedly connected to the bottom of the total station to facilitate the installation of the total station on the fixed platform 7. A plurality of legs are installed at the bottom of the fixed platform 7. The legs are fixed to the support plate 4 through a support plate 12, and the micro servo driver 6 is installed on the legs.

[0027] The displacement compensation control unit 5 is disposed between the fixed platform 7 and the support plate 12. Figure 2 The displacement compensation control unit 5 includes a power supply 503, a micro servo controller 501 and a pressure sensor 502. The compensation adjustment of the displacement compensator adjustment unit can offset the vertical displacement of the device in space, thereby reducing external interference during measurement. Specifically, when displacement deviations such as settlement occur in the tunnel, the total station tilts, and the pressure sensor under the fixed platform 7 receives the pressure change signal and converts the electrical signal into a control signal and transmits it to the micro servo controller 501. After the micro servo controller 501 receives the signal from the pressure sensor, according to a preset algorithm or logical judgment, the micro servo controller 501 outputs a control signal to the micro servo driver 6, drives the micro servo driver 6 to perform telescopic adjustment, so that the pressure sensor returns to normal degrees, thereby achieving fine-tuning of the level of the fixed platform 7, and then realizing the active compensation leveling function.

[0028] Although some preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0029] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of this application and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A shield measurement anti-vibration displacement compensation device, characterized in that: It includes a total station placement bracket for installing a total station, a bracket anchoring assembly for correspondingly fixing to a shield segment, and a support plate connecting the total station placement bracket and the bracket anchoring assembly; the bracket anchoring assembly includes a shock absorbing arm and a mounting seat, the mounting seat is fixed to one end of the support plate, one end of the shock absorbing arm is fixedly connected to a suspension ear and the other end is arranged in the mounting seat, and a segment bolt hole is opened on the suspension ear; the total station placement bracket includes a fixed platform, a micro servo driver, and a displacement compensation control unit for controlling the micro servo driver, the displacement compensation control unit includes a power supply, a micro servo controller and a pressure sensor, a plurality of legs are installed at the bottom of the fixed platform, the legs are fixed to the support plate through a support plate, and the micro servo controller is correspondingly arranged at the legs.

2. The shield measurement anti-vibration displacement compensation device according to claim 1 is characterized in that: The displacement compensation control unit is arranged between the fixed platform and the support plate.

3. The shield measurement anti-vibration displacement compensation device according to claim 1 is characterized in that: A longitudinal limit groove is provided at the corresponding positions of the mounting seat and the shock absorbing arm, and an arcuate limit groove is provided on the mounting seat in a direction parallel to the support plate. A guide shaft and a rotating shaft are fixed to the lower part of the shock absorbing arm, and the guide shaft is correspondingly passed through the longitudinal limit groove, and the rotating shaft is correspondingly passed through the arcuate limit groove.

4. The shield measurement anti-vibration displacement compensation device according to claim 1, characterized in that: The shock absorbing arm comprises a support column and a shock absorbing spring installed on the support column.

5. The shield measurement anti-vibration displacement compensation device according to claim 1, characterized in that: A stud matched with the bolt hole at the bottom of the total station is arranged at the center of the fixing platform.

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