Eccentric centering device of total station

Abstract

The invention relates to an eccentric centering device of a total station. Eccentric balancing weights are fixedly connected to a Z-direction first side and an X-direction first side of a first plate; the universal foot cup is fixedly connected to the first plate so as to provide stable support through an automatic balance mechanism of the universal foot cup; the universal wheel assembly is connected to the Z-direction second side of the first plate so as to move through universal wheels of the universal wheel assembly. The circle centers of the first, second and third through holes are coaxially arranged; a first support structure connects the Z-direction first side of the first plate and the Z-direction second side of the second plate around the first visual hole, and a second support structure connects the Z-direction first side of the second plate and the Z-direction second side of the third plate around the second visual hole. According to the eccentric centering device of the total station, device movement is achieved through the universal wheel assemblies, device fixing is achieved through reverse jacking of the universal foot cups, the device is eccentrically erected on one side of a single stable foundation of a tunnel through the eccentric balancing weight, and it is guaranteed that the total station meets the requirement for measurement precision in the measurement process.

Description

Technical Field

[0001] The present invention relates to the alignment of accelerators in free electron laser devices, and more particularly to an eccentric centering device for total stations. Background Art

[0002] The equipment of the free electron laser device is installed in a narrow and long tunnel. The accelerator section is the key part of the whole device, mainly used to improve the electron energy through equipment. During equipment installation, there are extremely high positioning accuracy requirements. Therefore, it is necessary to conduct control surveys on the tunnel control network. By establishing the alignment control network of the whole device as the installation reference for the device equipment to guide the on-site installation work, the accuracy requirements for equipment installation can be met.

[0003] Due to the limitation of the installation space of the device equipment, the alignment control points can only be arranged using the left side position of the tunnel ground structure and the middle torsion leg support position. However, both sides of the torsion leg support are movable cover plate floors, which are extremely vulnerable to displacement due to the influence of on-site personnel activities. Common measurement brackets during control network measurement cannot stably support the total station under the existing tunnel ground structure, because the influence of the ground environment increases the instability of the measuring instrument and reduces the measurement accuracy of the total station. Summary of the Invention

[0004] In order to solve the problems in the above-mentioned prior art that the measurement bracket cannot stably support the total station due to the influence of unstable foundation, etc., the present invention provides an eccentric centering device for total stations.

[0005] The eccentric centering device for total stations according to the present invention includes a first bracket, a second bracket, and a third bracket. Among them, the two-dimensional moving platform of the total station is connected to the third bracket, and the second bracket connects the first bracket and the third bracket; the first bracket includes a first plate, an eccentric counterweight, a universal foot cup, a universal wheel assembly, a first sighting hole, and a first support structure; the second bracket includes a second plate, a second sighting hole, and a second support structure; the third bracket includes a third plate and a third sighting hole; the eccentric counterweight is fixedly connected to the first side in the Z direction and the first side in the X direction of the first plate; the universal foot cup is fixedly connected to the first plate to provide stable support through its automatic balancing mechanism; the universal wheel assembly is connected to the second side in the Z direction of the first plate to move through its universal wheels; the first sighting hole penetrates the first plate on the second side in the X direction, the second sighting hole penetrates the second plate, and the third sighting hole penetrates the third plate. The centers of the first, second, and third sighting holes are coaxially arranged; the first support structure connects the first side in the Z direction of the first plate and the second side in the Z direction of the second plate around the first sighting hole, and the second support structure connects the first side in the Z direction of the second plate and the second side in the Z direction of the third plate around the second sighting hole.

[0006] In a preferred embodiment, when the total station is installed on the third bracket, the center of gravity of the whole device is located at the center position of the device.

[0007] In a preferred embodiment, the first plate is a triangular plate extending in the XY plane, and the three universal feet are respectively fixedly connected near the three vertices of the first plate.

[0008] In a preferred embodiment, the center of the line connecting the two universal feet on the second side of the X of the first plate coincides with the center of the first through-view hole in the XY direction.

[0009] In a preferred embodiment, each universal wheel assembly is located in the middle of two adjacent universal feet.

[0010] In a preferred embodiment, the first plate is provided with a first threaded through-hole. The universal foot includes a screw rod and a chassis fixedly connected to the bottom of the screw rod. The screw rod extends through the first threaded through-hole, and the chassis is located on the second side of the first plate in the Z direction and contacts the ground.

[0011] In a preferred embodiment, the first and second support structures are respectively three vertical rods arranged in parallel at an even interval of 120°.

[0012] In a preferred embodiment, the second and third plates are respectively circular plates extending in the XY plane, and the second and third through-view holes are respectively located at the centers of the second and third plates.

[0013] In a preferred embodiment, the diameter of the second through-view hole is larger than that of the first through-view hole, and the diameter of the first through-view hole is larger than that of the third through-view hole.

[0014] In a preferred embodiment, the third bracket further includes second threaded through-holes distributed around the third through-view hole. The screw-bolt structure passing through the second threaded through-holes connects the third plate and the two-dimensional moving platform of the total station.

[0015] In a preferred embodiment, the axes of the first, second, and third through-view holes are parallel to the Z direction.

[0016] For the eccentric centering device of the total station according to the present invention, the device is moved through the universal wheel assembly, fixed through the reverse jacking of the universal feet, eccentrically erected on one side of the single stable foundation in the tunnel through the eccentric counterweight block, the two-dimensional moving platform is installed through the third bracket, and centering is achieved on the ground control point of the accelerator tunnel through the concentric through-view holes at the center, ensuring that the total station meets the measurement accuracy requirements during the measurement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A is a perspective view of an eccentric centering device of a total station according to a preferred embodiment of the present invention.

[0018] Figure 1B is Figure 1A a side view of

[0019] Figure 2A Is Figure 1A The top view of the first bracket of the eccentric centering device of

[0020] Figure 2B Is Figure 2A The bottom view of the first bracket of

[0021] Figure 3 Is Figure 1A The top view of the second bracket of the eccentric centering device of

[0022] Figure 4 Is Figure 1A The top view of the third bracket of the eccentric centering device of Detailed implementation mode

[0023] The following combines the accompanying drawings to give the preferred embodiments of the present invention and describes them in detail.

[0024] In the present invention, the directions of X, Y, and Z are as shown in Figure 1A For each direction, the first side is the direction pointed by the arrow of the coordinate system, and the second side of each direction is Figure 1A The opposite direction of the arrow of the coordinate system. Figure 1A The opposite direction of the arrow of the coordinate system.

[0025] As shown in Figure 1A And Figure 1B As shown in

[0026] As shown in Figure 1AAs shown, the first support 100 includes a first plate 101 and an eccentric counterweight 110. The first plate 101, as the main structural member of the first support 100, is a triangular plate extending in the XY plane, providing an installation foundation for the eccentric counterweight 110 and other components, and having sufficient strength and stability to support the weight of the entire device. The eccentric counterweight 110 is fixedly connected to the first side in the Z direction and the first side in the X direction of the first plate 101, adjacent to a vertex of the triangular plate, for adjusting the center of gravity of the device to ensure the stability and balance of the device during measurement. Specifically, the eccentric counterweight 110 is fixed on the first side in the X direction of the first plate 101, which can ensure that when a total station is installed on the third support 300, the center of gravity of the entire device is located at the center position of the device, preventing it from tipping over due to force. In this embodiment, the first bolt assembly 111 includes four first bolts arranged on the first side in the Z direction, and each first bolt is threadedly connected to both the eccentric counterweight 110 and the first plate 101.

[0027] As Figure 1A shown, the first support 100 further includes three universal feet 120, which are respectively fixedly connected near the three vertices of the first plate 101. As Figure 2A shown, three first threaded through-holes 123 are respectively provided near the three vertices of the first plate 101. Each universal foot 120 includes a screw 121 and a chassis 122 fixedly connected to the bottom of the screw 121. The screw 121 extends through the first threaded through-hole 123, and the chassis 122 is located on the second side in the Z direction of the first plate 101 and contacts the ground. By adjusting the length of the screw 121, the chassis 122 can be made to contact the ground. With the help of its universal joint, the universal foot 120 can enable the chassis 122 to automatically adjust to the best contact angle on uneven ground. For example, if one side of the ground is higher, the chassis 122 of the universal foot will automatically tilt to ensure the maximum contact area with the ground. This automatic balancing mechanism enables the universal foot to provide stable support on uneven ground, thus ensuring the stability of the entire device. In this way, the universal foot 120 can enable the eccentric centering device of the total station to set up a measuring station at any position in the accelerator tunnel.

[0028] As Figure 1A , Figure 1B and Figure 2BAs shown, the first support 100 further includes three universal wheel assemblies 130, which are respectively fixedly connected to the second side of the first plate 101 in the Z direction. The universal wheel assemblies 130 are installed at the bottom edge of the first plate 101, not at the corners, but between two adjacent universal foot cups 120, which helps to evenly distribute the weight of the device and provides better support and mobility. There are three threaded holes on the second side of the first plate 101 in the Z direction. Each universal wheel assembly 130 includes a universal wheel that can rotate independently. The universal wheel is connected to the first plate 101 through the threaded hole, enabling the device to move flexibly in the tunnel or other working areas.

[0029] As Figure 1A shown, the first support 100 further includes a first through-view hole 140 and a first support structure 150. Among them, the first through-view hole 140 penetrates the first plate 101 on the second side in the X direction to ensure the coherence and accuracy of the measurement line of sight. The first support structure 150 is connected to the first side of the first plate 101 in the Z direction around the first through-view hole 140, extends to the first side in the Z direction, and is connected to the second side of the second support 200 in the Z direction. In this embodiment, the center of the connection line of the two universal foot cups 120 on the second side of the first plate 101 in the X direction coincides with the center of the first through-view hole 140 in the XY plane. In this embodiment, the first support structure 150 is composed of three vertical rods, and these rods are evenly spaced 120° and arranged in parallel around the first through-view hole 140 to provide stable support.

[0030] As Figure 1A and Figure 3 shown, the second support 200 includes a second plate 201, a second through-view hole 210 and a second support structure 220. Among them, the second plate 201 is the main structural member of the second support 200 and is a circular plate extending in the XY plane. The second through-view hole 210 is located at the center of the second plate 201 and is a through-hole coaxial with the center of the first through-view hole 140 (parallel to the Z direction) to ensure the coherence of the measurement line of sight. The second support structure 220 is connected to the first side of the second plate 201 in the Z direction around the second through-view hole 210, extends to the first side in the Z direction and is connected to the second side of the third support 300 in the Z direction. In this embodiment, the second support structure 220 is composed of three vertical rods, and these rods are evenly spaced 120° and arranged in parallel around the second through-view hole 210 to provide stable support. It should be understood that the main function of the second support 200 is to connect the first support 100 and the third support 300. The splicing method is adopted to avoid the lack of stability of a single long vertical rod, and at the same time, the three vertical rods provide sufficient supporting force to avoid additional increases in processing costs and the weight of the support.

[0031] As Figure 1A and Figure 4As shown in the figure, the third support 300 includes a third plate 301 and a third through-view hole 310. Among them, the third plate 301, as the main structural member of the third support 300, is a circular plate extending in the XY plane. The third through-view hole 310 is located at the center of the third plate 301 and is a through-hole coaxial with the centers of the first through-view hole 140 and the second through-view hole 210 (parallel to the Z direction), ensuring the coherence of the measurement line of sight. In this embodiment, the diameter of the second through-view hole 210 is larger than that of the first through-view hole 140, and the diameter of the first through-view hole 140 is larger than that of the third through-view hole 310. It should be understood that the second plate 201 is mainly used to provide the stability of the support rod and does not block the line of sight, and the second through-view hole 210 is mainly used to reduce the weight of the second plate 201. In addition, the third support 300 further includes four second threaded through-holes 320, which are distributed around the third through-view hole 310. The screw-bolt structure passing through the second threaded through-holes 320 connects the third plate 301 and the two-dimensional moving platform of the total station, realizing the fixation and centering operations of the total station.

[0032] According to the eccentric centering device of the total station of the present invention, the eccentric structure (eccentric counterweight 110), the device position fixation (universal foot cup 120) and movement (universal wheel assembly 130) of the device are realized through the first support 100, the stability of the upper and lower parts of the device is improved through the second support 200, and the total station is centered by installing a two-dimensional moving platform through the third support 300. When measuring the control points in the tunnel, it is possible to prevent the three universal foot cups 120 from being simultaneously placed on three unstable or unsteady ground structures, leaving one side of the movable cover plate for the movement of on-site personnel or vehicles, so as to ensure that the measuring instrument will not shake due to the movement of personnel and vehicles or slight vibrations, avoiding affecting the measurement accuracy of the total station. In addition, this design can also leave one side passage for the surveyors to stand when using the total station, preventing the surveyors from standing on the ground during the instrument leveling, measurement, and station change, which may cause the equipment to shake, thus meeting the requirements of the measurement environment of the total station and improving the measurement accuracy.

[0033] The above-mentioned are only the preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various changes can be made to the above embodiments of the present invention. That is, all simple, equivalent changes and modifications made according to the claims and the content of the specification of the present invention application fall within the scope of the claims of the present invention patent. The content not described in detail in the present invention is all conventional technical content.

Claims

1. An eccentric centering device for a total station, characterized in that: The eccentric centering device comprises a first bracket, a second bracket and a third bracket, wherein the two-dimensional mobile platform of the total station is connected to the third bracket, and the second bracket is connected to the first bracket and the third bracket; the first bracket comprises a first plate, an eccentric counterweight, a universal foot cup, a universal wheel assembly, a first through-view hole and a first supporting structure; the second bracket comprises a second plate, a second through-view hole and a second supporting structure; the third bracket comprises a third plate and a third through-view hole; the eccentric counterweight is fixedly connected to the first side of the first plate in the Z direction and the first side in the X direction; the universal foot cup is fixedly connected to the first The plate provides stable support through its automatic balancing mechanism; the universal wheel assembly is connected to the second side of the first plate in the Z direction to move through its universal wheel; the first through-view hole penetrates the first plate on the second side in the X direction, the second through-view hole penetrates the second plate, the third through-view hole penetrates the third plate, and the centers of the first, second and third through-view holes are coaxially arranged; the first supporting structure connects the first side of the first plate in the Z direction and the second side of the second plate in the Z direction around the first through-view hole, and the second supporting structure connects the first side of the second plate in the Z direction and the second side of the third plate in the Z direction around the second through-view hole.

2. The eccentric centering device according to claim 1, characterized in that: When the total station is installed on the third bracket, the center of gravity of the entire device is located at the center of the device.

3. The eccentric centering device according to claim 1, characterized in that: The first plate is a triangular plate extending on the XY plane, and the three universal foot cups are respectively fixedly connected near the three vertices of the first plate.

4. The eccentric centering device according to claim 3, characterized in that: Each universal wheel assembly is located in the middle of two adjacent universal foot cups.

5. The eccentric centering device according to claim 3, characterized in that: The center of the connection line of the two universal foot cups on the second side of the first plate in the X direction coincides with the center of the first viewing hole in the XY direction.

6. The eccentric centering device according to claim 1, characterized in that: The first plate is provided with a first threaded through hole, the universal foot cup comprises a screw rod and a chassis fixedly connected to the bottom of the screw rod, the screw rod extends through the first threaded through hole, the chassis is located at the second side of the first plate in the Z direction and contacts the ground.

7. The eccentric centering device according to claim 1, characterized in that: The first and second supporting structures are respectively three vertical rods evenly spaced 120 degrees apart and arranged in parallel.

8. The eccentric centering device according to claim 1, characterized in that: The second and third plates are circular plates extending on the XY plane, respectively. The second and third through holes are located at the centers of the second and third plates, respectively.

9. The eccentric centering device according to claim 1, characterized in that: The diameter of the second through-view hole is greater than the diameter of the first through-view hole, and the diameter of the first through-view hole is greater than the diameter of the third through-view hole.

10. The eccentric centering device according to claim 1, characterized in that: The axes of the first, second and third through-view holes are parallel to the Z direction.

Images