Hydropower station gate state on-line monitoring device

Abstract

The utility model relates to the technical field of hydropower station gates, and discloses a hydropower station gate state on-line monitoring device which comprises a gate and a monitoring assembly, the gate is in sliding connection with a door frame, a fixing plate is arranged at the top of the door frame, and a gate opening and closing mechanism is installed on the fixing plate. The gate opening and closing mechanism comprises a steel wire rope, a winding drum and a driving mechanism for driving the winding drum to rotate, two ends of the winding drum are rotationally connected with bearing seats at two ends of the fixing plate through drum shafts, one end of the steel wire rope is connected with the top of the gate, and the other end of the steel wire rope is wound on the winding drum; the monitoring assembly comprises an abrasion detector and a main control device, the fixing plate is provided with a limiting wheel assembly used for limiting the steel wire rope, the abrasion detector is arranged below the limiting wheel assembly, the center of the abrasion detector is provided with a through hole for penetration, the fixing plate is provided with a fixing rod, and the abrasion detector is fixed to the fixing rod. The wear condition of the steel wire rope can be monitored, and the safety and health condition of the steel wire rope can be known in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of hydropower station gates, and particularly relates to an on-line monitoring device for the state of hydropower station gates. Background Art

[0002] Gate equipment is the core equipment of water conservancy projects. Gates need to be inspected and maintained regularly to ensure safe operation. With the continuous development of modern science and technology, on-line monitoring systems have gradually emerged to replace manual inspections. For example, a Chinese utility model patent with the patent publication number CN217111368U discloses an on-line monitoring device for the state of hydropower station gates, which monitors the height and sealing of the gate through a gate height monitoring component and a sealing monitoring component. However, it does not monitor the safety condition of the rope, resulting in potential safety hazards. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the above problems by providing an on-line monitoring device for the state of hydropower station gates to solve the problems in the background art.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is as follows: An on-line monitoring device for the state of hydropower station gates includes a gate and a monitoring component. The gate is slidably connected to a door frame. A fixing plate is provided at the top of the door frame. The gate opening and closing mechanism is installed on the fixing plate. The gate opening and closing mechanism includes a steel wire rope, a drum, and a driving mechanism for driving the drum to rotate. Both ends of the drum are rotatably connected to bearing seats at both ends of the fixing plate through a barrel shaft. One end of the steel wire rope is connected to the top of the gate, and the other end of the steel wire rope is wound around the drum. The monitoring component includes a wear detector and a main control device. The wear detector is connected to the main control device. A limiting wheel assembly for limiting the steel wire rope is provided on the fixing plate. The wear detector is arranged below the limiting wheel assembly. A through hole for penetration is provided at the center of the wear detector. A fixing rod is provided on the fixing plate, and the wear detector is fixed on the fixing rod.

[0005] Further, the monitoring component further includes a laser rangefinder for monitoring the height of the gate. The laser rangefinder is arranged on the lower surface of the fixing plate, and a reflector corresponding to the laser rangefinder is provided at the top of the gate.

[0006] Further, the limiting wheel assembly includes a U-shaped frame and a pair of limiting wheels horizontally and parallelly arranged inside the U-shaped frame. The wheel shaft of the limiting wheel is rotatably connected to the side wall of the U-shaped frame. The outer end surface of the limiting wheel is an arc surface structure concave inward. The steel wire rope passes through between the pair of limiting wheels. The U-shaped frame is connected to a fixed seat through a connecting rod, and the fixed seat is connected to the fixing plate.

[0007] Further, the monitoring component includes a vibration sensor for monitoring the wear condition of the drum shaft of the reel. One end of the drum shaft of the reel is provided with a connecting seat, the connecting seat is rotatably connected to the drum shaft, the connecting seat is fixedly connected to the bearing seat, and the vibration sensor is arranged on the top of the connecting seat.

[0008] Further, the monitoring component further includes a camera assembly for monitoring the wire rope. The camera assembly includes a micro camera and a Z-shaped frame. The Z-shaped frame is arranged downward. The upper end of the Z-shaped frame is connected to the wear detector. The lower end of the Z-shaped frame is hinged with a mounting frame. The micro camera is fixed on the mounting frame. One end of the mounting frame away from the micro camera is provided with a hinge seat. A micro telescopic cylinder is arranged outside the Z-shaped frame. The upper end of the micro telescopic cylinder is hinged to the outside of the Z-shaped frame, and the lower end of the micro telescopic cylinder is hinged to the hinge seat.

[0009] Further, it further includes a limit alarm arranged on the upper part of the gate. The limit alarm includes a movable rod, a spring and a pressing head. The outer end of the pressing head is of an arc surface structure. An installation groove is arranged on the door frame. The installation groove is divided into two left and right chambers by a partition. The movable rod movably passes through the two chambers. One end of the movable rod close to the gate is connected to the pressing head. The arc-shaped part of the pressing head extends out of the installation groove. The other end of the movable rod is provided with a movable piece. A first conductive sheet is arranged on the movable piece. The movable piece and the pressing head are both slidably connected to the side wall of the installation groove. The spring is sleeved outside the movable rod between the partition and the pressing head. A second conductive sheet is arranged at the bottom of the installation groove. An alarm is arranged on the main control device. The alarm is electrically connected to the first conductive sheet and the second conductive sheet.

[0010] Due to the adoption of the above technical solution, the present utility model has the following beneficial effects:

[0011] The present utility model can monitor the wear condition of the wire rope by setting a wear detector, and can understand the safety and health condition of the wire rope in real time. At the same time, by setting a limit wheel assembly, it is ensured that the position between the gate and the limit wheel assembly is in a vertical state when the wire rope is used, so as to avoid contact friction with the wear detector and ensure the accuracy of the test. Description of the Drawings

[0012] Figure 1 It is a structural schematic diagram of an on-line monitoring device for the state of a hydropower station gate of the present utility model;

[0013] Figure 2 For the present utility model Figure 1 Partial enlarged view of A in

[0014] Figure 3 It is a sectional view of the gate of the present utility model;

[0015] Figure 4 For the present utility model Figure 3 Partial enlarged view of B in this figure;

[0016] Figure 5 Structural schematic diagram of the camera assembly of the present utility model;

[0017] In the figure: 1 - gate, 2 - fixed plate, 3 - gate opening and closing mechanism, 32 - steel wire rope, 31 - drum, 33 - driving mechanism, 34 - bearing seat, 5 - wear detector, 51 - fixed rod, 6 - limit wheel assembly, 61 - C-shaped frame, 62 - limit wheel, 63 - connecting rod, 64 - fixed seat, 7 - vibration sensor, 8 - connecting seat, 9 - main control device, 10 - door frame, 11 - limit alarm, 111 - installation groove, 112 - partition plate, 113 - pressing head, 114 - movable rod, 115 - spring, 116 - movable piece, 117 - first conductive sheet, 118 - second conductive sheet, 119 - alarm, 12 - camera assembly, 123 - micro camera, 121 - Z-shaped frame, 122 - mounting bracket, 124 - hinge seat, 125 - micro telescopic cylinder, 13 - laser rangefinder, 14 - reflector. Detailed implementation manners

[0018] In order to enable those skilled in the art of this technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0019] Referring to "embodiment" herein means that a specific feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the present utility model. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0020] As Figure 1 and Figure 2 shown, an on-line monitoring device for the state of a hydropower station gate includes a gate 1 and a monitoring component. The gate 1 is slidably connected to a door frame 10. A fixing plate 2 is provided at the top of the door frame 10. A gate opening and closing mechanism 3 is installed on the fixing plate 2. The gate opening and closing mechanism 3 includes a wire rope 32, a drum 31 and a driving mechanism 33 for driving the drum 31 to rotate. Both ends of the drum 31 are rotatably connected to bearing seats 34 at both ends of the fixing plate 2 through a barrel shaft. One end of the wire rope 32 is connected to the top of the gate 1, and the other end of the wire rope 32 is wound around the drum 31; the monitoring component includes a wear detector 5 and a main control device 9. The wear detector 5 is connected to the main control device 9. A limiting wheel assembly 6 for limiting the wire rope 32 is provided on the fixing plate 2. The wear detector 5 is arranged below the limiting wheel assembly 6. A through hole for penetration is provided at the center of the wear detector 5. A fixing rod 51 is provided on the fixing plate 2. The wear detector 5 is fixed on the fixing rod 51. The wear detector 5 uses an existing magnetic sensor to collect and record the magnetic leakage information of the wire rope 32 to obtain the wear condition of the wire rope 32.

[0021] The monitoring component further includes a laser rangefinder 13 for monitoring the height of the gate 1. The laser rangefinder 13 is arranged on the lower surface of the fixing plate 2. A reflector 14 corresponding to the laser rangefinder 13 is provided at the top of the gate 1. When the gate 1 moves, the height of the reflector 14 changes, so that the moving height of the gate 1 can be measured by the laser rangefinder 13.

[0022] As Figure 2 shown, the limiting wheel assembly 6 includes a U-shaped frame 61 and a pair of limiting wheels 62 horizontally and parallelly arranged inside the U-shaped frame 61. The wheel shafts of the limiting wheels 62 are rotatably connected to the side walls of the U-shaped frame 61. The outer end surfaces of the limiting wheels 62 are arc-shaped structures concave inward. The wire rope 32 passes through between the pair of limiting wheels 62. The U-shaped frame is connected to a fixed seat 64 through a connecting rod 63, and the fixed seat 64 is connected to the fixing plate. The wire rope 32 is limited by the pair of limiting wheels 62 to ensure that the wire rope 32 is in a vertical state between the gate 1 and the limiting wheel assembly 6, and contact friction occurs through the wear detector 5 to ensure the accuracy of the test.

[0023] As Figure 1 shown, the monitoring component includes a vibration sensor 7 for monitoring the wear condition of the barrel shaft of the drum 31. A connecting seat 8 is provided at one end of the barrel shaft of the drum 31. The connecting seat 8 is rotatably connected to the barrel shaft. The connecting seat 8 is fixedly connected to the bearing seat 34. The vibration sensor 7 is arranged at the top of the connecting seat 8. The wear information of the barrel shaft of the drum 31 is obtained through the vibration sensor 7. When the data is abnormal, it can be checked in time in advance.

[0024] As Figure 5, the monitoring component further includes a camera component 12 for monitoring the wire rope 32. The camera component 12 includes a micro camera 123 and a Z-shaped frame 121. The Z-shaped frame 121 is arranged downward. The upper end of the Z-shaped frame 121 is connected to the wear detector 5. The lower end of the Z-shaped frame 121 is hinged with a mounting frame 122. The micro camera 123 is fixed on the mounting frame 122. One end of the mounting frame 122 away from the micro camera 123 is provided with a hinge seat 124. A micro telescopic cylinder 125 is arranged outside the Z-shaped frame 121. The upper end of the micro telescopic cylinder 125 is hinged to the outside of the Z-shaped frame 121, and the lower end of the micro telescopic cylinder 125 is hinged to the hinge seat 124. The surface condition of the wire rope 32 is photographed and recorded, and the collected images are transmitted to the main control device 9 so that relevant personnel can understand the defect form through the picture information. The micro telescopic cylinder 125 can be an electric cylinder. The monitoring angle of the camera can be adjusted through the micro telescopic cylinder 125 to expand the monitoring range, which is beneficial to finding defects and obtaining defect images when defects occur. The camera component 12 is provided with at least two groups.

[0025] As Figure 3 and Figure 4 shown, it further includes a limit alarm 11 arranged on the upper part of the gate 1. The limit alarm 11 includes a movable rod 114, a spring 115 and a pressing head 113. The outer end of the pressing head 113 is an arc surface structure. An installation groove 111 is provided on the door frame 10. The installation groove 111 is divided into two left and right chambers by a partition 112. The movable rod 114 movably passes through the two chambers. One end of the movable rod 114 close to the gate 1 is connected to the pressing head 113. The arc part of the pressing head 113 extends out of the installation groove 111. The other end of the movable rod 114 is provided with a movable piece 116. A first conductive sheet 117 is provided on the movable piece 116. The movable piece 116 and the pressing head 113 are both slidably connected to the side wall of the installation groove 111. A spring 115 is sleeved outside the movable rod 114 between the partition 112 and the pressing head 113. A second conductive sheet 118 is provided at the bottom of the installation groove 111. An alarm is provided on the main control device 9. The alarm 119 is electrically connected to the first conductive sheet 117 and the second conductive sheet 118. The limit alarm 11911 is used to give an alarm in time when the gate 1 rises to the maximum height. When the gate rises to the maximum height, the pressing head 113 is subjected to the extrusion force of the gate and contracts in the installation groove 111. At this time, the spring is compressed and pushes the movable rod 114 to move inward, so that the first conductive sheet 117 and the second conductive sheet 118 are in contact and connected, and the circuit of the alarm 119 is connected to give a warning.

[0026] During operation, the rotation of the winding drum 31 drives the wire rope 32 to wind up or unwind, thereby driving the gate 1 to move up and down. The height position of the gate is monitored by the laser rangefinder 13. When the gate 1 reaches the maximum limit height, the circuit of the alarm 119 is connected to give a warning. During the operation of the winding drum 31, the wear detector collects and records the magnetic leakage information of the wire rope 32 to obtain the wear condition of the wire rope 32, and monitors the barrel shaft of the winding drum 31 through the vibration sensor 7 to monitor the wear state of the barrel shaft of the winding drum 31. The camera assembly 12 monitors the wire rope 32 to obtain the on-site image of the wire rope 32, which is convenient for finding defects when the wire rope 32 is abnormal.

[0027] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit of the present utility model are within the protection scope of the present utility model.

Claims

1. An on-line monitoring device for the state of a hydropower station gate, comprising a gate and a monitoring component. The gate is slidably connected to a doorframe. A fixing plate is provided at the top of the doorframe, and a gate opening and closing mechanism is installed on the fixing plate. The gate opening and closing mechanism includes a steel wire rope, a drum, and a driving mechanism for driving the drum to rotate. The two ends of the drum are rotatably connected to the bearing seats at both ends of the fixing plate through a drum shaft. One end of the steel wire rope is connected to the top of the gate, and the other end of the steel wire rope is wound around the drum. The monitoring component includes a wear detector and a main control device. The wear detector is connected to the main control device. A limit wheel assembly for limiting the steel wire rope is provided on the fixing plate. The wear detector is arranged below the limit wheel assembly. A through hole for penetration is provided at the center of the wear detector. A fixing rod is provided on the fixing plate, and the wear detector is fixed on the fixing rod.

2. The on-line monitoring device for gate status of a hydropower station according to claim 1, characterized in that: The monitoring component further includes a laser rangefinder for monitoring the height of the gate. The laser rangefinder is arranged on the lower surface of the fixing plate, and a reflector corresponding to the laser rangefinder is provided on the top of the gate.

3. The on-line monitoring device for gate status of a hydropower station according to claim 1, characterized in that: The limit wheel assembly includes a U-shaped frame and a pair of limit wheels horizontally and parallelly arranged inside the U-shaped frame. The wheel shaft of the limit wheel is rotatably connected to the side wall of the U-shaped frame. The outer end face of the limit wheel is an arc-shaped structure concave inward. The steel wire rope passes through between the pair of limit wheels. The U-shaped frame is connected to a fixed seat through a connecting rod, and the fixed seat is connected to the fixing plate.

4. The on-line monitoring device for gate status of a hydropower station according to claim 1, characterized in that: The monitoring component includes a vibration sensor for monitoring the wear condition of the drum shaft of the drum. A connecting seat is provided at one end of the drum shaft of the drum. The connecting seat is rotatably connected to the drum shaft, and the connecting seat is fixedly connected to the bearing seat. The vibration sensor is arranged on the top of the connecting seat.

5. The on-line monitoring device for gate status of a hydropower station according to claim 1, characterized in that: The monitoring component further includes a camera assembly for monitoring the steel wire rope. The camera assembly includes a micro camera and a Z-shaped frame. The Z-shaped frame is arranged downward. The upper end of the Z-shaped frame is connected to the wear detector. The lower end of the Z-shaped frame is hinged with a mounting frame. The micro camera is fixed on the mounting frame. A hinge seat is provided at one end of the mounting frame away from the micro camera. A micro telescopic cylinder is provided outside the Z-shaped frame. The upper end of the micro telescopic cylinder is hinged to the outside of the Z-shaped frame, and the lower end of the micro telescopic cylinder is hinged to the hinge seat.

6. The on-line monitoring device for gate status of a hydropower station according to claim 1, characterized in that: It further includes a limit alarm arranged on the upper part of the gate. The limit alarm includes a movable rod, a spring, and a pressing head. The outer end of the pressing head is an arc-shaped structure. An installation groove is provided on the doorframe. The installation groove is separated into two left and right chambers by a partition plate. The movable rod movably passes through the two chambers. One end of the movable rod close to the gate is connected to the pressing head. The arc-shaped part of the pressing head extends out of the installation groove. The other end of the movable rod is provided with a movable piece. A first conductive sheet is provided on the movable piece. The movable piece and the pressing head are both slidably connected to the side wall of the installation groove. A spring is sleeved outside the movable rod between the partition plate and the pressing head. A second conductive sheet is provided at the bottom of the installation groove. An alarm is provided on the main control device. The alarm is electrically connected to the first conductive sheet and the second conductive sheet.

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