Flange gap monitoring device

Abstract

The utility model relates to a flange clearance monitoring device, which belongs to the technical field of tower monitoring equipment and comprises a displacement sensor mounted on the side wall of an upper flange and a monitoring rod with one end inserted into the displacement sensor and slidably connected with the displacement sensor. The end, located on the outer side of the displacement sensor, of the monitoring rod is provided with a limiting block installed on the side wall of the lower side flange, the end of the monitoring rod abuts against the limiting block, and the displacement sensor is in radio connection with a control host. The application has the effect of reducing adverse effects on use safety.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of tower drum monitoring equipment, and in particular to a flange gap monitoring device. BACKGROUND

[0002] When assembling a tower drum, a worker usually uses a hydraulic wrench to pre-tighten and fasten the bolts, so that the actual pre-tightening force of the bolts deviates from the design pre-tightening force, and the design pre-tightening force deviates from the bolt axial force. In addition, since the bolt damage condition is difficult to monitor when the wind turbine is running, the bolts are prone to damage and difficult to monitor, which may adversely affect the use safety. CONTENT OF THE UTILITY MODEL

[0003] In order to reduce the adverse effects on the use safety, the application provides a flange gap monitoring device.

[0004] The flange gap monitoring device provided by the application adopts the following technical scheme:

[0005] The flange gap monitoring device comprises a displacement sensor installed on the side wall of the upper flange and a monitoring rod inserted into the displacement sensor and in sliding connection with the displacement sensor, one end of the monitoring rod located outside the displacement sensor is provided with a limiting block installed on the side wall of the lower flange, the end of the monitoring rod abuts against the limiting block, and the displacement sensor is wirelessly connected with a control host.

[0006] By adopting the above technical scheme, the displacement sensor is installed on the upper flange, the limiting block is installed on the lower flange, and the monitoring rod abuts against the limiting block. When the bolts are damaged, the distance between the upper flange and the lower flange increases, the distance between the displacement sensor and the limiting block increases, and the monitoring rod slides relatively. At this time, the displacement sensor monitors the movement distance of the monitoring rod and sends an electric signal to the control host, so as to monitor the gap between the flanges in time and reduce the adverse effects on the use safety.

[0007] Optionally, one end of the monitoring rod close to the limiting block is provided with a magnet block, one side of the limiting block close to the monitoring rod is provided with a magnet sheet matched with the magnet block, and the monitoring rod and the limiting block are connected by the mutual attraction of the magnet block and the magnet sheet.

[0008] By adopting the above technical scheme, the monitoring rod and the limiting block are connected by the mutual attraction of the magnet block and the magnet sheet, the stability of the connection between the monitoring rod and the limiting block is improved, and the monitoring precision of the movement distance of the monitoring rod is improved.

[0009] Optionally, the displacement sensor is provided with a positioning assembly for positioning the limiting block.

[0010] By adopting the technical scheme, the relative position of the limiting block and the displacement sensor is determined by the positioning assembly, and the displacement sensor and the limiting block are respectively installed on the upper flange and the lower flange, at this time, the position between the displacement sensor and the limiting block is fixed, the initial position of the monitoring rod is determined, and the monitoring accuracy is improved.

[0011] Optionally, the positioning assembly comprises a first positioning frame and a second positioning frame which are sleeved outside the displacement sensor and oppositely arranged, a connecting piece connecting the first positioning frame and the second positioning frame is arranged between the first positioning frame and the second positioning frame, and two oppositely arranged positioning plates are arranged on the lower side of the second positioning frame, and the limiting block is inserted between the positioning plates.

[0012] By adopting the technical scheme, the first positioning frame and the second positioning frame are installed on the displacement sensor and fixed by the positioning piece, at this time, the limiting plate is inserted between the positioning plates, so that the relative position of the limiting block and the displacement sensor is determined.

[0013] Optionally, the connecting piece is arranged as a buckle installed on both sides of the first positioning frame, and the first positioning frame and the second positioning frame are fixed through the buckle.

[0014] By adopting the technical scheme, the first positioning frame and the second positioning frame are fixed by the buckle, the first positioning frame and the second positioning frame are convenient to disassemble and assemble, and the disassembly and assembly efficiency is improved.

[0015] Optionally, a mounting rod towards the monitoring rod is slidably connected to the lower side of the displacement sensor, a first spring is arranged between the mounting rod and the displacement sensor, when the first spring is in the original length, one end of the mounting rod close to the monitoring rod is inserted into the monitoring rod, at this time, the monitoring rod is not connected with the limiting block.

[0016] By adopting the technical scheme, when the first positioning frame and the second positioning frame are installed, the mounting rod is first pushed to move away from the monitoring rod, and the monitoring rod is pushed to move towards the inside of the displacement sensor, until one end of the mounting rod close to the monitoring rod can be inserted into the monitoring rod, at this time, the first spring restores the deformation and pushes the end of the mounting rod to be inserted into the monitoring rod, the monitoring rod is convenient to be limited, and then the limiting block is convenient to be installed, and the installation efficiency is improved.

[0017] Optionally, a mounting pin for fixing the mounting rod is arranged on the displacement sensor, when the mounting rod is fixed through the mounting pin, the end of the mounting rod is not in contact with the monitoring rod.

[0018] By adopting the technical scheme, the mounting rod is fixed by the mounting pin when the monitoring rod is not positioned, at this time the first spring is compressed, the mounting pin is driven to disengage from the mounting rod when the monitoring rod is positioned, the first spring restores deformation and pushes the end of the mounting rod to insert into the monitoring rod, the monitoring rod is positioned conveniently, and the installation efficiency is improved.

[0019] Optionally, the inner side walls on both sides of the first positioning frame and the second positioning frame are provided with oppositely arranged plug-in plates, and the plug-in plates are inserted into the side walls of the displacement sensor when the first positioning frame and the second positioning frame are installed on the displacement sensor.

[0020] By adopting the technical scheme, the plug-in plates are inserted into the displacement sensor, the first positioning frame and the second positioning frame are positioned in the width direction of the displacement sensor, the stability of the installation of the first positioning frame and the second positioning frame is improved, and the disassembly and assembly efficiency is improved.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. When the bolt is damaged, the distance between the upper flange and the lower flange increases, the distance between the displacement sensor and the limiting block increases, the monitoring rod slides relatively, at this time the displacement sensor monitors the movement distance of the monitoring rod and sends an electrical signal to the control host, the gap between the flanges is monitored in time, and the adverse effect on the use safety is reduced.

[0023] 2. The relative position of the limiting block and the displacement sensor is determined by the positioning assembly, and the displacement sensor and the limiting block are installed on the upper flange and the lower flange respectively, the initial position of the monitoring rod is determined conveniently, and the monitoring accuracy is improved.

[0024] 3. The mounting rod is pushed to move away from the monitoring rod, and the monitoring rod is pushed to move towards the inside of the displacement sensor, until the end of the mounting rod close to the monitoring rod can be inserted into the monitoring rod, at this time the first spring restores deformation and pushes the end of the mounting rod to insert into the monitoring rod, the monitoring rod is positioned conveniently, and the limiting block is installed conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole mechanism schematic view of the flange gap monitoring device in the embodiment of the present application.

[0026] Figure 2 It is a structure schematic view of the embodiment of the present application, which embodies the positional relationship between the monitoring rod and the mounting rod.

[0027] Figure 3 It is a structure schematic view of the embodiment of the present application, which embodies the positional relationship between the displacement sensor and the positioning assembly.

[0028] Explanation of reference signs: 1, displacement sensor; 11, plug-in slot; 12, sliding slot; 2, monitoring rod; 21, second spring; 22, magnet block; 23, limiting slot; 3, limiting block; 31, magnet sheet; 4, positioning assembly; 41, first positioning frame; 42, second positioning frame; 43, plug-in plate; 44, buckle; 45, positioning plate; 5, mounting rod; 51, first spring; 52, mounting pin. DETAILED DESCRIPTION

[0029] The application will be further described in detail below with reference to the accompanying drawings.

[0030] The application discloses a flange gap monitoring device. Figure 1 and Figure 2 The flange gap monitoring device comprises a vertical displacement sensor 1 on the inner wall of the upper flange. In the application, the displacement sensor 1 is connected to the side wall of the upper flange in a manner of adhesion and magnetic attraction. The lower end of the displacement sensor 1 is provided with a vertical monitoring rod 2 inserted into the displacement sensor 1 and in sliding connection with the displacement sensor 1. The end of the monitoring rod 2 located outside the displacement sensor 1 is sleeved with a second spring 21, the upper end of the second spring 21 is fixed to the outer wall of the displacement sensor 1, and the lower end is fixed to the side wall of the monitoring rod 2.

[0031] The lower end of the monitoring rod 2 abuts against a limiting block 3 mounted on the inner wall of the lower flange. In the application, the displacement sensor 1 is connected to the side wall of the upper flange in a manner of adhesion and magnetic attraction. The lower end of the monitoring rod 2 is fixedly connected with a magnet block 22, and the upper side of the limiting block 3 is fixedly connected with a magnet sheet 31 adapted to the magnet block 22. The magnet block 22 and the magnet sheet 31 attract each other, and the displacement sensor 1 is wirelessly connected with a control host (not shown in the figure).

[0032] The displacement sensor 1 is mounted on the upper flange, and the limiting block 3 is mounted on the lower flange. At this time, the monitoring rod 2 abuts against the limiting block 3. When the bolt is damaged, the distance between the upper flange and the lower flange increases, the distance between the displacement sensor 1 and the limiting block 3 increases, and the monitoring rod 2 relatively slides. At this time, the displacement sensor 1 monitors the moving distance of the monitoring rod 2 and sends an electric signal to the control host, so as to facilitate timely monitoring of the gap between the flanges.

[0033] The monitoring rod 2 and the limiting block 3 are connected in a manner of mutual attraction of the magnet block 22 and the magnet sheet 31, so as to improve the stability of the connection between the monitoring rod 2 and the limiting block 3.

[0034] Referring to Figure 1 and Figure 3The displacement sensor 1 is detachably connected with a positioning assembly 4 for positioning the limiting block 3. The positioning assembly 4 comprises first and second positioning racks 41 and 42 arranged opposite in the vertical direction. The inner side walls on both sides of the first and second positioning racks 41 and 42 are fixedly connected with vertical plug-in plates 43. The displacement sensor 1 is provided with plug-in grooves 11 on the side walls, which are adapted to the plug-in plates 43 and penetrate the side walls of the displacement sensor 1. The first and second positioning racks 41 and 42 are connected with the displacement sensor 1 by being plugged into the plug-in grooves 11 through the plug-in plates 43, and a connecting piece is arranged between the first and second positioning racks 41 and 42. In the embodiment, buckles 44 are arranged on both sides of the first positioning rack 41, and the first and second positioning racks 41 and 42 are fixed by the buckles 44. At this time, the ends of the first and second positioning racks 41 and 42 away from each other and the sides close to each other abut against the side walls of the displacement sensor 1.

[0035] Referring to Figure 1 , the lower end of the second positioning rack 42 close to the displacement sensor 1 is fixedly connected with two vertical positioning plates 45, and the limiting block 3 can be inserted between the positioning plates 45. Figure 1 and Figure 2 , the displacement sensor 1 is provided with a mounting rod 5 on one side of the monitoring rod 2. The end of the mounting rod 5 close to the monitoring rod 2 is horizontal and faces the monitoring rod 2, and the other end is bent upward to be vertical.

[0036] The displacement sensor 1 is provided with a sliding groove 12 on the lower end, which is adapted to the mounting rod 5. The vertical end of the mounting rod 5 is inserted into the sliding groove 12 and moves towards or away from the monitoring rod 2. The end of the sliding groove 12 away from the monitoring rod 2 is provided with a first spring 51, one end of which is fixedly connected with the inner side wall of the displacement sensor 1, and the other end is fixedly connected with the mounting rod 5. The side wall of the monitoring rod 2 is provided with a limiting groove 23 on the lower side of the second spring 21, which is adapted to the end of the mounting rod 5. When the first spring 51 is in the original length, the end of the mounting rod 5 can be inserted into the limiting groove 23. The displacement sensor 1 is inserted with a mounting pin 52 for fixing the mounting rod 5. When the mounting pin 52 passes through the vertical end of the mounting rod 5, the first spring 51 is compressed, and the end of the mounting rod 5 does not contact the monitoring rod 2.

[0037] Push the monitoring rod 2 to move towards the inside of the displacement sensor 1 until the mounting rod 5 close to one end of the monitoring rod 2 can be inserted into the monitoring rod 2, the driving mounting pin 52 is separated from the mounting rod 5, the first spring 51 restores the deformation and pushes the mounting rod 5 end to move along the sliding groove 12 and insert into the limiting groove 23 on the monitoring rod 2, the plug-in plate 43 on the first positioning frame 41 and the second positioning frame 42 is inserted into the plug-in slot 11, which is convenient for limiting the first positioning frame 41 and the second positioning frame 42 in the width direction of the displacement sensor 1, the first positioning frame 41 and the second positioning frame 42 are fixed through the buckle 44, at this time the limiting plate is inserted between the positioning plates 45, which is convenient for determining the relative position of the limiting block 3 and the displacement sensor 1. When the monitoring rod 2 does not need to be limited, the mounting rod 5 is fixed through the mounting pin 52, at this time the first spring 51 is compressed.

[0038] The implementation principle of the flange gap monitoring device is that the displacement sensor 1 is installed on the upper flange, the limiting block 3 is installed on the lower flange, at this time the monitoring rod 2 abuts against the limiting block 3, when the bolt is damaged, the distance between the upper flange and the lower flange increases, the distance between the displacement sensor 1 and the limiting block 3 increases, the monitoring rod 2 relatively slides, at this time the displacement sensor 1 monitors the moving distance of the monitoring rod 2 and sends an electric signal to the control host, which is convenient for monitoring the gap between the flanges in time.

[0039] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A flange gap monitoring device, characterized by: The utility model provides a displacement sensor and monitoring rod combined structure, including the displacement sensor (1) installed on the upper flange side wall and the monitoring rod (2) one end inserts in the displacement sensor (1) and is connected with the displacement sensor (1) slidingly, the monitoring rod (2) one end outside the displacement sensor (1) is equipped with the limiting block (3) installed on the lower flange side wall, the monitoring rod (2) end abuts on the limiting block (3), the displacement sensor (1) wireless radio connection has control host computer.

2. A flange gap monitoring device according to claim 1, characterised in that: The end of the monitoring rod (2) close to the limiting block (3) is provided with a magnet block (22), and the side of the limiting block (3) close to the monitoring rod (2) is provided with a magnet sheet (31) matched with the magnet block (22), and the monitoring rod (2) and the limiting block (3) are connected by the mutual attraction of the magnet block (22) and the magnet sheet (31).

3. A flange gap monitoring device according to claim 2, characterised in that: The displacement sensor (1) is provided with a positioning assembly (4) for positioning the limiting block (3).

4. A flange gap monitoring device according to claim 3, characterised in that: The positioning assembly (4) includes a first positioning frame (41) and a second positioning frame (42) which are arranged oppositely and sleeved outside the displacement sensor (1), a connecting piece is arranged between the first positioning frame (41) and the second positioning frame (42) to connect the two, and the second positioning frame (42) is provided with two oppositely arranged positioning plates (45) on the lower side, and the limiting block (3) is inserted between the positioning plates (45).

5. A flange gap monitoring device according to claim 4, characterised in that: The connecting piece is a buckle (44) arranged on both sides of the first positioning frame (41), and the first positioning frame (41) and the second positioning frame (42) are fixed by the buckle (44).

6. A flange gap monitoring device according to claim 5, characterised in that: The displacement sensor (1) is provided with a mounting rod (5) which is connected to the monitoring rod (2) and slides downward, a first spring (51) is arranged between the mounting rod (5) and the displacement sensor (1), when the first spring (51) is in the original length, one end of the mounting rod (5) close to the monitoring rod (2) is inserted into the monitoring rod (2), and at this time, the monitoring rod (2) is not connected with the limiting block (3).

7. A flange gap monitoring device according to claim 6, characterised in that: The displacement sensor (1) is provided with a mounting pin (52) for fixing the mounting rod (5), when the mounting rod (5) is fixed by the mounting pin (52), the end of the mounting rod (5) is not in contact with the monitoring rod (2).

8. A flange gap monitoring device according to claim 7, characterised in that: The inner side walls on both sides of the first positioning frame (41) and the second positioning frame (42) are provided with oppositely arranged insertion plates (43), and when the first positioning frame (41) and the second positioning frame (42) are mounted on the displacement sensor (1), the insertion plates (43) are inserted into the side walls of the displacement sensor (1).

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