Mounting mechanism for bottom shaft driven flap gate

Abstract

The invention is suitable for the technical field of gate installation, and particularly relates to an installation mechanism for a bottom shaft driven flap gate, the installation mechanism comprises a first end shaft supporting assembly, a second end shaft supporting assembly and a movable supporting platform, the first end shaft supporting assembly and the second end shaft supporting assembly are respectively provided with two groups of laser emitters and two groups of laser receivers; a dynamic supporting structure is arranged on the movable supporting platform and comprises a center shaft supporting plate, two first calibration detectors and two second calibration detectors are fixedly installed at the bottom of the center shaft supporting plate, and the dynamic supporting structure is used for dynamically adjusting the position of the center shaft according to the included angle relation between the center shaft and the end shaft. When the center shaft is carried, the position state of the center shaft can be detected, so that the position of the center shaft is finely adjusted through the dynamic supporting structure, the centering operation of an end shaft and the center shaft is completed, the whole process can be automatically achieved through the dynamic supporting structure, the centering precision is improved, and the construction time is shortened.

Description

Technical Field

[0001] This invention belongs to the field of gate installation technology, and particularly relates to an installation mechanism for a bottom shaft driven flap gate. Background Technology

[0002] A bottom-shaft driven flap gate is a hydraulic structure that controls the opening and closing of a gate by a drive shaft installed at the bottom of the gate. It utilizes a rotating shaft at the bottom as a fulcrum, and a hydraulic or mechanical drive device pushes the gate to rotate around the bottom shaft, thereby achieving the functions of damming for water storage and discharging floodwaters when tilted. This type of gate has a simple structure, flexible opening and closing, and can effectively regulate the upstream water level. While maintaining good flow conditions, it also has a strong flood discharge capacity. It is commonly used in urban landscape rivers and small to medium-sized water conservancy projects to balance flood control safety and ecological landscape requirements.

[0003] When installing large-sized flap gates, the bottom shaft is also large and difficult to transport directly. It is often transported and installed in sections. During the installation process, hoisting and manual alignment are generally used, which is difficult to operate. The process of adjusting the bottom shaft connection is very slow and affects the construction progress. Summary of the Invention

[0004] The purpose of this invention is to provide an installation mechanism for a bottom shaft driven flap gate, which aims to solve the problem that the installation process generally adopts hoisting and manual alignment, which is difficult to operate and the process of adjusting the bottom shaft connection is very slow, thus affecting the construction progress.

[0005] This invention is implemented as follows: a mounting mechanism for a bottom-shaft driven flap gate, comprising a first end-shaft support assembly, a second end-shaft support assembly, and a movable support platform. The first and second end-shaft support assemblies respectively support two sets of end shafts. Two sets of laser emitters and two sets of laser receivers are respectively mounted on the first and second end-shaft support assemblies. A dynamic support structure is mounted on the movable support platform, comprising a central axis support plate. Two sets of first calibration detectors and two sets of second calibration detectors are fixedly mounted on the bottom of the central axis support plate. The first and second calibration detectors determine the angle between the central axis and the end shafts based on the laser irradiation position. The dynamic support structure dynamically adjusts the position of the central axis based on the angle between the central axis and the end shafts, so that the axes of the central axis and the end shafts coincide.

[0006] Preferably, the first end shaft support assembly includes a first hydraulic rod and a first end shaft support plate, the laser emitter is fixedly mounted on the first end shaft support plate, the first end shaft support plate is fixedly mounted above the first hydraulic rod, the second end shaft support assembly includes a second hydraulic rod, a second end shaft support plate is fixedly mounted on the second hydraulic rod, and a laser receiver is fixedly mounted on the second end shaft support plate, and the cross-sections of both the first end shaft support plate and the second end shaft support plate are V-shaped.

[0007] Preferably, the dynamic support structure includes two sets of sliding support assemblies and two sets of fixed support assemblies. The sliding support assemblies include a third hydraulic rod and a fourth hydraulic rod. The third hydraulic rod is mounted on the mobile support platform via a mounting seat, and the mounting seat is rotatably connected to the third hydraulic rod. The fourth hydraulic rod is mounted on the mobile support platform via a fixed support seat, and the fixed support seat is rotatably connected to the fourth hydraulic rod. A first connecting sleeve is fixedly mounted on the third hydraulic rod, and the first connecting sleeve is rotatably connected to the telescopic end of the fourth hydraulic rod. A sliding seat is rotatably connected to the telescopic end of the third hydraulic rod, and a slider is rotatably connected to the sliding seat. A groove is provided on the central shaft support plate, and the slider is slidably disposed in the groove. The fixed support assemblies include a fifth hydraulic rod and a sixth hydraulic rod. The fifth hydraulic rod is rotatably connected to the mobile support platform. A set of rotating seats is rotatably connected to the telescopic end of the fifth hydraulic rod, and the rotating seats are rotatably connected to the central shaft support plate. A second connecting sleeve is fixedly mounted on the fifth hydraulic rod, and the second connecting sleeve is rotatably connected to the telescopic end of the sixth hydraulic rod. The sixth hydraulic rod is rotatably connected to the mobile support platform via a set of fixed support seats.

[0008] Preferably, the first calibration detector and the second calibration detector have the same structure. The first calibration detector includes a housing, a laser sensor and a beam splitter. The beam splitter is tilted inside the housing and the angle between the beam splitter and the axis of the central axis is 45°. The angle between the laser sensor and the beam splitter is 45°. The laser sensor is used to detect the position of laser irradiation.

[0009] Preferably, the central axis support plate is provided with an anti-slip layer.

[0010] Preferably, the central axis support plate has the same cross-sectional shape as the first end axis support plate and the second end axis support plate.

[0011] Preferably, laser rangefinders are provided on the central axis support plate, the first end axis support plate, and the second end axis support plate.

[0012] The installation mechanism for the bottom shaft driven flap gate provided by the present invention, by setting two sets of calibration detectors, can detect the position of the central shaft when it is being transported, and then fine-tune the position of the central shaft through a dynamic support structure to complete the alignment operation between the end shaft and the central shaft. The whole process can be automatically realized through the dynamic support structure, which improves the alignment accuracy and shortens the construction time. Attached Figure Description

[0013] Figure 1 This is a first-view schematic diagram of an installation mechanism for a bottom-shaft driven flap gate provided in an embodiment of the present invention; Figure 2 This is a second-view schematic diagram of an installation mechanism for a bottom-shaft driven flap gate provided in an embodiment of the present invention; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the first calibration detector provided in an embodiment of the present invention; Figure 5 This is a schematic diagram illustrating the principle of bottom axis offset detection provided in an embodiment of the present invention.

[0014] In the attached diagram: 1. First end shaft support plate; 2. First hydraulic rod; 3. Laser emitter; 4. Central shaft support plate; 5. Movable support platform; 6. Second hydraulic rod; 7. Second end shaft support plate; 8. Laser receiver; 9. First calibration detector; 10. Second calibration detector; 11. Slide groove; 12. Mounting seat; 13. Third hydraulic rod; 14. First connecting sleeve; 15. Fourth hydraulic rod; 16. Sliding seat; 17. Fixed support seat; 18. Fifth hydraulic rod; 19. Second connecting sleeve; 20. Rotating seat; 21. Sixth hydraulic rod; 22. Laser sensor sheet; 23. Beam splitter. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0016] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0017] like Figure 1 , Figure 2 and Figure 3As shown, an installation mechanism for a bottom-shaft driven flap gate is provided in an embodiment of the present invention. The installation mechanism for the bottom-shaft driven flap gate includes a first end shaft support assembly, a second end shaft support assembly, and a movable support platform 5. The first end shaft support assembly and the second end shaft support assembly are used to support two sets of end shafts respectively. Two sets of laser emitters 3 and two sets of laser receivers 8 are respectively provided on the first end shaft support assembly and the second end shaft support assembly. A dynamic support structure is provided on the movable support platform 5. The dynamic support structure includes a central shaft support plate 4. Two sets of first calibration detectors 9 and two sets of second calibration detectors 10 are fixedly installed at the bottom of the central shaft support plate 4. The first calibration detectors 9 and the second calibration detectors 10 are used to determine the included angle between the central shaft and the end shaft according to the laser irradiation position. The dynamic support structure is used to dynamically adjust the position of the central shaft according to the included angle relationship between the central shaft and the end shaft, so that the axes of the central shaft and the end shaft coincide.

[0018] In this embodiment, during construction, the entire bottom shaft is composed of multiple shaft sections, with the shafts at both ends referred to as end shafts. The end shafts are installed first, directly on the walls on both sides. Measurements are taken using a total station to ensure that the axes of the two sets of end shafts coincide. The first end shaft support assembly and the second end shaft support assembly are installed on the two sets of end shafts respectively, providing auxiliary support for the end shafts from the bottom. The lasers emitted by the two sets of laser emitters 3 are received by the two sets of laser receivers 8 on the opposite side. At this time, the path of the laser is parallel to the axis of the entire shaft. The central shaft is placed on the central shaft support plate 4 using hoisting equipment. There are two sets of lasers, that is, there are two laser paths at the same time: laser emitter 3—first calibration detector 9—second calibration detector 10—laser receiver 8. When the axes of the central shaft and the end shafts coincide, the light emitted by the laser emitter 3 in each path will pass through the center point of the first calibration detector 9 and the second calibration detector 10, and finally reach the corresponding laser receiver. During the adjustment process, the central shaft is placed on the central shaft support plate 4 and transported to the approximate installation position by manually controlling the moving support platform 5. At this time, the first calibration detector 9 and the second calibration detector 10 will simultaneously detect the laser emitted by the laser emitter 3. The first calibration detector 9 and the second calibration detector 10 determine the current central shaft angle by detecting the position of the laser irradiation, and control the dynamic support structure based on the central shaft angle. The position of the central shaft support plate 4 is adjusted by the dynamic support structure to adjust the position of the central shaft until the laser accurately passes through the center point of the first calibration detector 9 and the second calibration detector. Then, the moving support platform is used to translate so that the end shaft is aligned with the central shaft. If the position of the central shaft is slightly offset during this transportation process, it is adjusted appropriately by the dynamic support structure. In the process of fine-tuning the alignment, the effect of automated operation is achieved, and the alignment accuracy is improved. In this embodiment, by setting a laser rangefinder, the distance between the end shaft and the end of the central shaft can be detected to ensure that the two have the best welding gap. Welding is then carried out. After the welding of one end is completed, the welded end of the central shaft is temporarily supported. Then, the next section of the central shaft is transported by this installation mechanism to realize the splicing and installation of the bottom shaft.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, in a preferred embodiment of the present invention, the first end shaft support assembly includes a first hydraulic rod 2 and a first end shaft support plate 1. The laser emitter 3 is fixedly installed on the first end shaft support plate 1, and the first end shaft support plate 1 is fixedly installed above the first hydraulic rod 2. The second end shaft support assembly includes a second hydraulic rod 6, a second end shaft support plate 7 is fixedly installed on the second hydraulic rod 6, and a laser receiver 8 is fixedly installed on the second end shaft support plate 7. The cross-sections of the first end shaft support plate 1 and the second end shaft support plate 7 are both V-shaped.

[0020] In this embodiment, after the end shaft is installed, the first end shaft support assembly and the second end shaft support assembly are installed on the ground. To ensure the ground's support force, steel plates can be temporarily laid on the ground to improve support stability. By controlling the first hydraulic rod 2 and the second hydraulic rod 6 to rise, the first end shaft support plate 1 and the second end shaft support plate 7 respectively support the two sets of end shafts. Since the axes of the two sets of end shafts coincide, the light emitted by the laser emitter 3 will be parallel to the axis of the end shaft and reach the laser receiver 8 located on the second end shaft support plate 7. Since the cross-sections of the first end shaft support plate 1 and the second end shaft support plate 7 are both V-shaped, the effect of automatic centering can be achieved.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in a preferred embodiment of the present invention, the dynamic support structure includes two sets of sliding support assemblies and two sets of fixed support assemblies. The sliding support assemblies include a third hydraulic rod 13 and a fourth hydraulic rod 15. The third hydraulic rod 13 is mounted on the mobile support platform 5 via a mounting base 12, and the mounting base 12 is rotatably connected to the third hydraulic rod 13. The fourth hydraulic rod 15 is mounted on the mobile support platform 5 via a fixed support base 17, and the fixed support base 17 is rotatably connected to the fourth hydraulic rod 15. A first connecting sleeve 14 is fixedly mounted on the third hydraulic rod 13, and the first connecting sleeve 14 is rotatably connected to the telescopic end of the fourth hydraulic rod 15. The telescopic extension of the third hydraulic rod 13... The sliding support plate 4 is rotatably connected to a sliding seat 16, and a slider is rotatably connected to the sliding seat 16. A groove 11 is provided on the central shaft support plate 4, and the slider is slidably disposed in the groove 11. The fixed support assembly includes a fifth hydraulic rod 18 and a sixth hydraulic rod 21. The fifth hydraulic rod 18 is rotatably connected to the mobile support platform 5. A set of rotating seats 20 is rotatably connected to the telescopic end of the fifth hydraulic rod 18. The rotating seats 20 are rotatably connected to the central shaft support plate 4. A second connecting sleeve 19 is fixedly installed on the fifth hydraulic rod 18. The second connecting sleeve 19 is rotatably connected to the telescopic end of the sixth hydraulic rod 21. The sixth hydraulic rod 21 is rotatably connected to the mobile support platform 5 through a set of fixed support seats 17.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment of the present invention, the first calibration detector 9 and the second calibration detector 10 have the same structure. The first calibration detector 9 includes a housing, a laser sensor 22 and a beam splitter 23. The beam splitter 23 is inclinedly disposed in the housing, and the angle between the beam splitter 23 and the axis of the central axis is 45°. The angle between the laser sensor 22 and the beam splitter 23 is 45°. The laser sensor 22 is used to detect the position of laser irradiation.

[0023] In this embodiment, the central axis is moved by the movable support platform 5, allowing the laser to pass through both the first calibration detector 9 and the second calibration detector 10 simultaneously. Both the first and second calibration detectors contain a beam splitter 23 and a set of laser sensor plates 22. When the laser beam hits the beam splitter 23, a portion of the laser light passes directly through it and continues forward, while the other portion is reflected off the surface of the beam splitter 23 and then onto the laser sensor plate 22. When the central axis and the end axis are coaxial, the laser light will illuminate the center of the laser sensor plate 22 within both calibration detectors. When the central axis and the end axis are not aligned or parallel, the laser's illumination position on the laser sensor plate 22 will deviate from the center point. Figure 5As shown, based on the irradiation positions of the laser on the front and rear sets of laser sensor plates 22, the line connecting the two sets is the current irradiation path of the laser. The line connecting the centers of the two sets of laser sensor plates 22 is the reference path. The position of the central axis support plate 4 is changed to control the movement of the central axis, so that the irradiation path in the two sets of paths coincides with the reference path. At this time, the axis of the central axis and the axis of the end axis coincide, completing the axis alignment operation. Then, the moving support platform 5 is finely adjusted to bring the welding bevel closer and welding is performed. When adjusting the position of the central axis, it is first adjusted based on a set of paths. That is, the central axis is controlled according to the positional relationship between the reference path and the illumination path in one path, so that the reference path and the illumination path in that path coincide. At this time, the axis of the central axis and the axis of the end axis are parallel. Then, the central axis is rotated around the already coincided illumination path and reference path, so that the illumination path in another set of paths coincides with the reference path, thus completing the centering process. Specifically, after generating the reference path, the reference path and the illumination path are simultaneously projected onto three mutually perpendicular planes, thereby determining the projection angle in each plane to assist in adjusting the position of the central axis. For example, if the angle in the horizontal plane is α, then the central axis is controlled to rotate by the corresponding angle in the horizontal plane, thereby realizing the attitude adjustment of the central axis.

[0024] When adjusting the position of the central axis, four support points can be formed for the central axis support plate 4 through the fifth hydraulic rod 18 and two sets of third hydraulic rods 13. By changing the lengths of the fifth hydraulic rod 18, the third hydraulic rod 13, the fourth hydraulic rod 15, and the sixth hydraulic rod 21, the posture of the central axis support plate 4 can be changed, thereby indirectly controlling the posture of the central axis. During the adjustment process, by setting the slide groove 11, it can be ensured that the central axis support plate 4 can freely change its posture. Taking one support point as an example, by changing the extension and shortening of a set of fourth hydraulic rods 15, the tilt angle of the third hydraulic rod 13 can be changed. By changing the length of the third hydraulic rod 13, the position of the support point can be changed. That is, the support point can move within the plane where the third hydraulic rod 13 and the fourth hydraulic rod 15 are located. The other support points are similar and can also move within the corresponding plane, thereby achieving precise adjustment of the central axis support plate 4. An anti-slip layer is provided on the central axis support plate 4.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mounting mechanism for a bottom-shaft driven flap gate, characterized in that, The mounting mechanism for the bottom shaft driven flap gate includes a first end shaft support assembly, a second end shaft support assembly, and a mobile support platform (5). The first end shaft support assembly and the second end shaft support assembly are used to support two sets of end shafts respectively. Two sets of laser emitters (3) and two sets of laser receivers (8) are respectively provided on the first end shaft support assembly and the second end shaft support assembly. A dynamic support structure is provided on the mobile support platform (5). The dynamic support structure includes a central shaft support plate (4). Two sets of first calibration detectors (9) and two sets of second calibration detectors (10) are fixedly installed at the bottom of the central shaft support plate (4). The first calibration detectors (9) and the second calibration detectors (10) are used to determine the angle between the central shaft and the end shaft according to the laser irradiation position. The dynamic support structure is used to dynamically adjust the position of the central shaft according to the angle relationship between the central shaft and the end shaft, so that the axes of the central shaft and the end shaft coincide.

2. The mounting mechanism for a bottom-shaft driven flap gate according to claim 1, characterized in that, The first end shaft support assembly includes a first hydraulic rod (2) and a first end shaft support plate (1). The laser emitter (3) is fixedly installed on the first end shaft support plate (1). The first end shaft support plate (1) is fixedly installed above the first hydraulic rod (2). The second end shaft support assembly includes a second hydraulic rod (6). A second end shaft support plate (7) is fixedly installed on the second hydraulic rod (6). A laser receiver (8) is fixedly installed on the second end shaft support plate (7). The cross-sections of the first end shaft support plate (1) and the second end shaft support plate (7) are both V-shaped.

3. The mounting mechanism for a bottom-shaft driven flap gate according to claim 1, characterized in that, The dynamic support structure includes two sets of sliding support components and two sets of fixed support components. The sliding support components include a third hydraulic rod (13) and a fourth hydraulic rod (15). The third hydraulic rod (13) is mounted on the mobile support platform (5) via a mounting seat (12), and the mounting seat (12) is rotatably connected to the third hydraulic rod (13). The fourth hydraulic rod (15) is mounted on the mobile support platform (5) via a fixed support seat (17), and the fixed support seat (17) is rotatably connected to the fourth hydraulic rod (15). A first connecting sleeve (14) is fixedly installed on the third hydraulic rod (13), and the first connecting sleeve (14) is rotatably connected to the telescopic end of the fourth hydraulic rod (15). A sliding seat (15) is rotatably connected to the telescopic end of the third hydraulic rod (13). 6) The sliding seat (16) is rotatably connected to a slider, and the central shaft support plate (4) is provided with a groove (11), and the slider is slidably disposed in the groove (11); the fixed support assembly includes a fifth hydraulic rod (18) and a sixth hydraulic rod (21). The fifth hydraulic rod (18) is rotatably connected to the mobile support platform (5). The telescopic end of the fifth hydraulic rod (18) is rotatably connected to a set of rotating seats (20). The rotating seats (20) are rotatably connected to the central shaft support plate (4). A second connecting sleeve (19) is fixedly installed on the fifth hydraulic rod (18). The second connecting sleeve (19) is rotatably connected to the telescopic end of the sixth hydraulic rod (21). The sixth hydraulic rod (21) is rotatably connected to the mobile support platform (5) through a set of fixed support seats (17).

4. The mounting mechanism for a bottom-shaft driven flap gate according to claim 1, characterized in that, The first calibration detector (9) and the second calibration detector (10) have the same structure. The first calibration detector (9) includes a housing, a laser sensor (22) and a beam splitter (23). The beam splitter (23) is tilted inside the housing. The angle between the beam splitter (23) and the axis of the central axis is 45°. The angle between the laser sensor (22) and the beam splitter (23) is 45°. The laser sensor (22) is used to detect the position of laser irradiation.

5. The mounting mechanism for a bottom-shaft driven flap gate according to claim 1, characterized in that, An anti-slip layer is provided on the central axis support plate (4).

6. The mounting mechanism for a bottom-shaft driven flap gate according to claim 2, characterized in that, The central axis support plate (4) has the same cross-sectional shape as the first end axis support plate (1) and the second end axis support plate (7).

7. The mounting mechanism for a bottom-shaft driven flap gate according to claim 6, characterized in that, Laser rangefinders are installed on the central axis support plate (4), the first end axis support plate (1), and the second end axis support plate (7).

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