Station station dynamic self-resetting device for shield station-change-free guiding system

Abstract

The utility model discloses an observation station dynamic self-resetting device for a shield station-changing-free guiding system, which belongs to the technical field of tunnel construction equipment and comprises a sliding platform and a total station, the total station is movably mounted on a shield trolley through the sliding platform, the sliding platform comprises two groups of side frames, and the side frames are arranged on the sliding platform. End plates are fixedly mounted at the ends of the two side frames, and sliding seats are slidably mounted at the tops of the two side frames. In order to overcome errors of intersection measurement when the total station moves along with the shield trolley, the total station is kept in a relatively static state when the shield trolley moves through reverse movement of the sliding platform, and the sliding platform can be linked with a control flow of a guide system. According to the device, the total station can continuously carry out high-precision and high-frequency measurement under the condition that manual station change is not needed, so that a station-change-free guiding system is realized, the measurement precision is improved, and the working efficiency is greatly optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction equipment, in particular to a measuring station dynamic self-resetting device for a shield machine free-changing station guiding system. Background Technique

[0002] In the working process of shield machine tunneling, the traditional method is that whenever the shield machine advances about 30 to 50 meters, it is necessary to manually move the total station and the back sight prism to a new position. This frequent station-changing operation not only consumes a large amount of time and labor, but also may affect the guiding accuracy due to the uncertainty of the station-changing accuracy.

[0003] In response to this problem, the industry increasingly tends to an innovative method: changing the traditional installation mode of the total station, changing it from being fixedly installed on the tunnel wall to being installed on the shield trolley and moving along with the trolley. This method uses the resection method to freely set up a station, which can effectively avoid the problems brought by traditional station-changing, and is expected to significantly improve the speed and accuracy of tunnel construction. However, this resection measurement can only be carried out when the shield machine stops tunneling, because resection measurement during the moving state will cause serious and uncontrollable errors. Since shield tunneling is essentially a continuous process, this limitation greatly reduces the practicability of the new method. Therefore, we need to propose a measuring station dynamic self-resetting device for a shield machine free-changing station guiding system. Summary of the Invention

[0004] The purpose of the utility model is to provide a measuring station dynamic self-resetting device for a shield machine free-changing station guiding system, which has the advantages of improving the measurement accuracy and optimizing the working efficiency, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides a measuring station dynamic self-resetting device for a shield machine free-changing station guiding system, including a sliding platform and a total station. The total station is movably installed on the shield trolley through the sliding platform. The sliding platform includes two groups of side frames. End plates are fixedly installed at the ends of the two groups of side frames. A sliding seat is slidably installed on the top of the two groups of side frames. A driving component for driving the sliding seat to move is installed between the two groups of end plates. An adjustable leveling installation component is arranged between the top of the sliding seat and the bottom of the total station. The total station is fixedly installed on the top of the sliding seat through the adjustable leveling installation component. Limit switch A and limit switch B are respectively installed at both ends on one side of one of the groups of side frames.

[0006] Preferably, the driving component includes a driving motor fixedly installed on one side of one of the groups of end plates. The output shaft of the driving motor penetrates through the end plate and extends to the inner side of the two groups of end plates to be fixedly installed with a driving lead screw. A threaded hole adapted to the driving lead screw is opened in the inner part of the sliding seat. The inner wall of the threaded hole is threadedly connected with the surface of the driving lead screw.

[0007] Preferably, a rotating seat is installed at one end of the driving lead screw away from the driving motor, and the end of the driving lead screw away from the driving motor is rotatably installed on the surface of one of the end plates through the rotating seat.

[0008] Preferably, the leveling and mounting assembly includes a first mounting plate fixedly installed at the bottom of the total station. A second mounting plate is arranged below the first mounting plate. The second mounting plate is fixedly installed on the top of the sliding seat through a positioning assembly. Leveling bolts are installed at the four corners of the top of the second mounting plate, and the top ends of the leveling bolts are connected to the bottom of the first mounting plate through nuts.

[0009] Preferably, the positioning assembly includes positioning rods arranged at the four corners of the top of the second mounting plate. Corresponding positioning holes are formed at the four corners of the top of the sliding seat. The bottom ends of the positioning rods penetrate through the second mounting plate and extend below the second mounting plate to be threadedly connected to the inner wall of the positioning holes.

[0010] Preferably, mounting grooves are formed at two mutually perpendicular edges of the first mounting plate, and a bubble level is fixedly installed in the inner cavity of the mounting grooves.

[0011] Preferably, sliding grooves are formed at both sides of the bottom of the sliding seat and corresponding to the side frames, and the inner walls of the sliding grooves are slidably connected to the surfaces of the side frames.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In order to overcome the errors in intersection measurement when the total station moves with the shield tunneling machine, the present utility model makes the total station maintain a relatively static state when the shield tunneling machine moves through the reverse movement of the sliding platform. The sliding platform can be linked with the control process of the guiding system. This device enables the total station to continuously perform high-precision and high-frequency measurements without manual station change, thereby realizing a non-station-changing guiding system, which not only improves the measurement accuracy but also greatly optimizes the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the leveling and mounting assembly of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the mounting groove of the present utility model;

[0017] Figure 4 is a schematic structural diagram of the sliding groove of the present utility model;

[0018] Figure 5This is a schematic block diagram of the control system of the present utility model.

[0019] In the figure: 1, total station; 2, side frame; 3, end plate; 4, sliding seat; 5, limit switch A; 6, limit switch B; 7, drive motor; 8, drive lead screw; 9, threaded hole; 10, rotating seat; 11, first mounting plate; 12, second mounting plate; 13, leveling bolt; 14, positioning rod; 15, positioning hole; 16, mounting groove; 17, bubble level; 18, sliding groove. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-5 , the present utility model provides a station dynamic self-resetting device for a shield non-replacement station guiding system, including a sliding platform and a total station 1. The total station 1 is movably installed on the shield trolley through the sliding platform. This device includes a sliding platform driven by a servo motor, in which there are a limit switch A5 and a limit switch B6. The single-board computer controls the servo motor to drive the platform to move synchronously with the trolley through the servo driver via PID adjustment, and the phases are the same. The single-board computer exchanges data with the guiding system, receives the instructions sent by it, and uploads the status of the platform. The single-board computer can independently collect PLC data to obtain the moving amount of the trolley, or receive the displacement instructions sent by the guiding system, and keep the total station 1 in a relatively static state when the trolley moves through the reverse movement of the platform. This platform can be linked with the control process of the guiding system, that is, it can ensure the measurement accuracy and achieve the purpose of "non-replacement station".

[0022] Preferably, the sliding platform includes two groups of side frames 2. End plates 3 are fixedly installed at the ends of the two groups of side frames 2. A sliding seat 4 is slidably installed on the tops of the two groups of side frames 2. A driving component for driving the sliding seat 4 to move is installed between the two groups of end plates 3. The driving component includes a driving motor 7 fixedly installed on one side of one of the end plates 3. The output shaft of the driving motor 7 penetrates through the end plate 3 and extends to the inside of the two groups of end plates 3 and is fixedly installed with a driving lead screw 8. A threaded hole 9 adapted to the driving lead screw 8 is opened inside the sliding seat 4. The inner wall of the threaded hole 9 is threadedly connected to the surface of the driving lead screw 8. A limit switch A5 and a limit switch B6 are respectively installed at both ends of one side of one of the side frames 2.

[0023] By setting the driving component, the total station 1 can be driven to move. Specifically, the output shaft of the driving motor 7 drives the driving lead screw 8 to rotate, thereby driving the sliding seat 4 to move on the top of the side frame 2. The movement of the sliding seat 4 drives the total station 1 to move. By using the limit switch A5 and the limit switch B6 in cooperation, a signal can be sent to the single-board control computer when the sliding seat 4 reaches the end of the sliding platform, and the driving motor 7 is controlled to reverse by it.

[0024] One end of the driving lead screw 8 away from the driving motor 7 is provided with a rotating seat 10. One end of the driving lead screw 8 away from the driving motor 7 is rotatably installed on the surface of one group of end plates 3 through the rotating seat 10. Chute grooves 18 are provided on both sides of the bottom of the sliding seat 4 and at the corresponding positions of the side frame 2. The inner wall of the chute groove 18 is slidably connected to the surface of the side frame 2.

[0025] By setting the rotating seat 10, one end of the driving lead screw 8 is rotatably connected to the surface of one group of end plates 3 through the rotating seat 10, which can improve the stability of the rotation of the driving lead screw 8. By setting the chute groove 18, when the sliding seat 4 moves, it will drive the chute groove 18 to slide on the surface of the side frame 2, thereby improving the stability of the movement of the sliding seat 4.

[0026] It is worth noting that an adjustable leveling installation component is provided between the top of the sliding seat 4 and the bottom of the total station 1. The total station 1 is installed and fixed on the top of the sliding seat 4 through the adjustable leveling installation component. The adjustable leveling installation component includes a first installation plate 11 fixedly installed at the bottom of the total station 1. A second installation plate 12 is provided below the first installation plate 11. The second installation plate 12 is fixedly installed on the top of the sliding seat 4 through a positioning component. The positioning component includes positioning rods 14 provided at the four corners of the top of the second installation plate 12. Positioning holes 15 corresponding to the positioning rods 14 are provided at the four corners of the top of the sliding seat 4. The bottom end of the positioning rod 14 penetrates through the second installation plate 12 and extends below the second installation plate 12 and is threadedly connected to the inner wall of the positioning hole 15. Leveling bolts 13 are installed at the four corners of the top of the second installation plate 12. The top end of the leveling bolt 13 is connected to the bottom of the first installation plate 11 through a nut. Installation grooves 16 are provided at two mutually perpendicular edges of the first installation plate 11. A bubble level 17 is fixedly installed in the inner cavity of the installation groove 16.

[0027] By setting the adjustable leveling installation component, the total station 1 can be horizontally installed. During installation, the user can judge whether the total station 1 is in a horizontal installation state through the bubble level 17. If it is not in a horizontal state, the horizontal state of the first installation plate 11 can be finely adjusted through the leveling bolts 13 at the four corners of the bottom of the first installation plate 11, so that the total station 1 can be installed in a horizontal posture. By setting the positioning component, the second installation plate 12 can be installed and fixed on the top of the sliding seat 4, and then the total station 1 can be installed and fixed on the sliding seat 4.

[0028] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A station dynamic self-resetting device for a shield machine station-changing-free guide system, comprising a sliding platform and a total station (1), wherein the total station (1) is movably mounted on a shield machine trolley via the sliding platform, and characterized in that: The sliding platform comprises two groups of side frames (2), end plates (3) are fixedly mounted at the ends of the two groups of side frames (2), slide seats (4) are slidably mounted at the tops of the two groups of side frames (2), a driving assembly for driving the slide seat (4) to move is mounted between the two groups of end plates (3), a leveling mounting assembly is arranged between the top of the slide seat (4) and the bottom of the total station (1), and the total station (1) is fixedly mounted on the top of the slide seat (4) via the leveling mounting assembly, and a limit switch A (5) and a limit switch B (6) are respectively mounted at both ends of one side of one group of the side frames (2).

2. The station dynamic self-resetting device for the shield station-changing-free guidance system according to claim 1 is characterized in that: The driving assembly comprises a driving motor (7) fixedly mounted on one side of one group of the end plates (3); an output shaft of the driving motor (7) passes through the end plates (3) and extends to the inner sides of the two groups of the end plates (3) where a driving screw (8) is fixedly mounted; a threaded hole (9) matching the driving screw (8) is formed inside the sliding seat (4); an inner wall of the threaded hole (9) is threadedly connected to a surface of the driving screw (8).

3. The station dynamic self-resetting device for the shield station-changing-free guidance system according to claim 2 is characterized in that: A rotating seat (10) is mounted on one end of the driving screw rod (8) away from the driving motor (7), and the end of the driving screw rod (8) away from the driving motor (7) is rotatably mounted on the surface of one group of the end plates (3) through the rotating seat (10).

4. The station dynamic self-resetting device for the shield station-changing-free guidance system according to claim 1 is characterized in that: The leveling mounting assembly comprises a first mounting plate (11) fixedly mounted on the bottom of the total station (1); a second mounting plate (12) is arranged below the first mounting plate (11); the second mounting plate (12) is fixedly mounted on the top of the slide seat (4) via a positioning assembly; leveling bolts (13) are mounted at four corners of the top of the second mounting plate (12); the top ends of the leveling bolts (13) are connected to the bottom of the first mounting plate (11) via nuts.

5. The station dynamic self-resetting device for the shield station-changing-free guidance system according to claim 4 is characterized in that: The positioning assembly comprises positioning rods (14) arranged at four corners of the top of the second mounting plate (12); positioning holes (15) corresponding to the positioning rods (14) are opened at four corners of the top of the slide seat (4); the bottom end of the positioning rod (14) passes through the second mounting plate (12) and extends to the bottom of the second mounting plate (12) and is threadedly connected to the inner wall of the positioning hole (15).

6. The station dynamic self-resetting device for the shield station-changing-free guidance system according to claim 4 is characterized in that: The first mounting plate (11) is provided with mounting grooves (16) at two mutually perpendicular edges, and a bubble level (17) is fixedly mounted in the inner cavity of the mounting groove (16).

7. The station dynamic self-resetting device for the shield station-changing-free guidance system according to claim 1 is characterized in that: Slide grooves (18) are provided on both sides of the bottom of the slide seat (4) and at corresponding positions of the side frame (2), and the inner wall of the slide groove (18) is slidably connected to the surface of the side frame (2).

Images