Vibration spectrum analyzer for hydroelectric generating set

Abstract

The utility model relates to the technical field of vibration measurement, and provides a hydroelectric generating set vibration spectrum analyzer which comprises a display instrument body, a telescopic rod is arranged at the top end of the display instrument body, a sensing block is arranged at one end of the telescopic rod, one side of the surface of the display instrument body is movably connected with a first column body, and a second column body is arranged at the other side of the surface of the display instrument body. One side of the surface of the first column body is fixedly connected with a box body, two sides of the surface of the first column body are fixedly connected with a shell, the bottom end of the shell is fixedly connected with a shell body, and the other side of the surface of the display instrument body is movably connected with a second column body. According to the technical scheme, the first supporting column drives the display instrument body to adjust the height through the first connecting block and the second supporting column drives the display instrument body to adjust the height through the second connecting block, so that the problem that the height of the instrument is possibly inconvenient to adjust when different positions are measured is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration measurement, in particular to a vibration spectrum analyzer for a hydroelectric generator set. Background Art

[0002] The vibration spectrum analyzer of the hydroelectric generator set is based on vibration sensing technology. It collects the vibration signals of the unit in real time through sensors installed in key parts such as turbines, bearings and generators. These signals are converted into spectrum diagrams after precise signal processing and analysis, revealing the vibration characteristics of the unit during operation.

[0003] The patent specification with the announcement number CN206945130U discloses a fan motor vibration spectrum analyzer, including a base and a fixed plate; a spring is arranged between the base and the fixed plate; a positioning plate is arranged on the fixed plate; a receiving groove for receiving the fan motor is arranged on the positioning plate; a protective cover is arranged on the positioning plate; a locking mechanism for fixing the protective cover to the positioning plate is also included; the fixing plate is provided with a first vibration sensor, a second vibration sensor, and a third vibration sensor. The utility model measures the vibration of the fan motor in the three directions of X / Y / Z by arranging the first vibration sensor, the second vibration sensor, and the third vibration sensor, thereby obtaining a spectrum diagram of the fan motor vibration; in addition, the spring is arranged between the base and the fixed plate to make the structure more stable.

[0004] However, in the implementation of the relevant technology, it was found that the above-mentioned fan motor vibration spectrum analyzer has the following problem: when measuring at different positions, it may be inconvenient to adjust the height of the instrument. Utility Model Content

[0005] The utility model provides a vibration spectrum analyzer for a hydroelectric generator set, which solves the problem that it may be inconvenient to adjust the height of the instrument when measuring at different positions.

[0006] The technical solution of the utility model is as follows:

[0007] A vibration spectrum analyzer for a hydroelectric generator set comprises a display body, a telescopic rod is arranged at the top of the display body, a sensor block is arranged at one end of the telescopic rod, a first column is movably connected to one side of the surface of the display body, a box is fixedly connected to one side of the surface of the first column, an outer shell is fixedly connected to both sides of the surface of the first column, a shell is fixedly connected to the bottom end of the outer shell, and a second column is movably connected to the other side of the surface of the display body.

[0008] Preferably, a first motor is provided at the top of the box body, and the output end of the first motor is rotatably connected to the first gear through a coupling, the surface of the first gear is meshed with a transmission chain, the inner side of one end of the transmission chain is meshed with a second gear, the top of the second gear is rotatably connected to a first threaded column, the surface of the first threaded column is threadedly connected to a nut, square blocks are fixedly connected on both sides of the nut, the top of the nut is fixedly connected to a first support column, and the inner side of the top of the first support column is fixedly connected to a first connecting block.

[0009] Preferably, a square groove is formed on the inner wall of the first column, and the square block and the square groove form a sliding structure.

[0010] Preferably, a hydraulic push rod is provided at the bottom end of the inner wall of the second column, the output end of the hydraulic push rod is fixedly connected to the second support column, rectangular blocks are fixedly connected to both sides of the second support column, rollers are provided on both sides of one end of the rectangular block, and the inner side of the top end of the second support column is fixedly connected to the second connecting block.

[0011] Preferably, a sliding groove is provided on the inner wall of the second column, and the roller and the sliding groove form a sliding structure.

[0012] Preferably, a second motor is provided on the inner wall of the outer shell, and the output end of the second motor passes through the outer shell and is rotatably connected to a second threaded column through a coupling, and a threaded sleeve is threadedly connected to the surface of the second threaded column, and limiting blocks are fixedly connected to both sides of one end of the threaded sleeve, and a drill bit is provided at one end of the second threaded column.

[0013] Preferably, a rectangular groove is formed on the inner wall of the shell, and the limiting block and the rectangular groove form a limiting structure.

[0014] Preferably, the threaded sleeve fits against the inner wall of the shell, and the surface of the threaded sleeve and the inner wall of the shell form a sliding structure.

[0015] The working principle and beneficial effects of the utility model are:

[0016] 1. In the utility model, the first support column drives the display body to adjust its height through the first connecting block and the second support column assists through the second connecting block. The position of the sensor can be flexibly adjusted to ensure the best vibration signal collection, which is very important for capturing the vibration characteristics of different parts of the unit. It can flexibly adapt to different working conditions and ensure that accurate and reliable vibration data can be obtained under various operating conditions, which effectively helps to monitor the equipment status more comprehensively.

[0017] 2. In the utility model, the drill bit is driven into the ground by the second threaded column, which can reduce the measurement error caused by the instability between the instrument and the ground, effectively prevent the instrument from accidentally moving in a vibrating environment, effectively ensure that the instrument always remains in the correct position, and help to quickly adjust when needed, reducing the complexity and time-consuming nature of the maintenance process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the height adjustment component structure proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the auxiliary adjustment component structure proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the auxiliary fixing assembly structure proposed by the utility model;

[0023] Figure 5 This is a schematic diagram of the external structure proposed by the utility model.

[0024] In the figure: 1. display body; 2. telescopic rod; 3. sensor block; 4. first column; 5. box; 6. shell; 7. shell; 8. second column; 9. first motor; 10. first gear; 11. transmission chain; 12. second gear; 13. first threaded column; 14. nut; 15. square block; 16. first support column; 17. first connecting block; 18. hydraulic push rod; 19. second support column; 20. rectangular block; 21. roller; 22. second connecting block; 23. square groove; 24. slide groove; 25. second motor; 26. second threaded column; 27. threaded sleeve; 28. limit block; 29. ​​drill bit; 30. rectangular groove. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] like Figure 1 to Figure 3As shown, it includes a display body 1, a telescopic rod 2 is arranged at the top of the display body 1, a sensor block 3 is arranged at one end of the telescopic rod 2, a first column 4 is movably connected to one side of the surface of the display body 1, a box 5 is fixedly connected to one side of the surface of the first column 4, a shell 6 is fixedly connected to both sides of the surface of the first column 4, a shell 7 is fixedly connected to the bottom end of the shell 6, and a second column 8 is movably connected to the other side of the surface of the display body 1, and the top of the first column 4 and the top of the second column 8 are always on the same horizontal line.

[0028] In this embodiment, a first motor 9 is provided at the top of the box body 5, and the output end of the first motor 9 is rotatably connected to the first gear 10 through a coupling, the surface of the first gear 10 is meshed with a transmission chain 11, and the inner side of one end of the transmission chain 11 is meshed with a second gear 12, and the top of the second gear 12 is rotatably connected to a first threaded column 13, and the surface of the first threaded column 13 is threadedly connected to a nut 14, and square blocks 15 are fixedly connected to both sides of the nut 14, and the top of the nut 14 is fixedly connected to a first support column 16, and the inner side of the top of the first support column 16 is fixedly connected to a first connecting block 17, and the first gear 10 and the second gear 12 are always on the same horizontal line.

[0029] In this embodiment, a square groove 23 is formed on the inner wall of the first column 4 , and the square block 15 and the square groove 23 form a sliding structure, and the square block 15 serves as a limiting structure for the nut 14 .

[0030] In this embodiment, a hydraulic push rod 18 is provided at the bottom end of the inner wall of the second column 8, and the output end of the hydraulic push rod 18 is fixedly connected to the second support column 19, and rectangular blocks 20 are fixedly connected to both sides of the second support column 19. Rollers 21 are provided on both sides of one end of the rectangular block 20, and a second connecting block 22 is fixedly connected to the inner side of the top end of the second support column 19. The rectangular block 20 and the second support column 19 constitute a limiting structure.

[0031] In this embodiment, a sliding groove 24 is formed on the inner wall of the second column 8 , the roller 21 and the sliding groove 24 form a sliding structure, and the roller 21 forms a limiting structure for the second support column 19 .

[0032] Example 2

[0033] like Figure 4 , Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes

[0034] In this embodiment, a second motor 25 is provided on the inner wall of the outer shell 6, and the output end of the second motor 25 passes through the outer shell 6 and is rotatably connected to a second threaded column 26 through a coupling. The surface of the second threaded column 26 is threadedly connected to a threaded sleeve 27, and both sides of one end of the threaded sleeve 27 are fixedly connected to a limiting block 28. A drill bit 29 is provided at one end of the second threaded column 26, and the diameter of the drill bit 29 is the same as the width of the shell 7.

[0035] In this embodiment, a rectangular groove 30 is formed on the inner wall of the housing 7 , the limiting block 28 and the rectangular groove 30 form a limiting structure, and the limiting block 28 and the rectangular groove 30 form a sliding structure.

[0036] In this embodiment, the threaded sleeve 27 fits with the inner wall of the housing 7 , the surface of the threaded sleeve 27 and the inner wall of the housing 7 form a sliding structure, and the length of the threaded sleeve 27 is equal to the length of the housing 7 .

[0037] Working principle: When using this device, the first motor 9 drives the first gear 10 to rotate, the first gear 10 drives the second gear 12 to rotate through the transmission chain 11, the second gear 12 drives the first threaded column 13 to rotate, the first threaded column 13 and the nut 14 form a threaded fit, the nut 14 drives the first support column 16 to rise and fall, the first support column 16 drives the display body 1 to move through the first connecting block 17, the square blocks 15 on both sides of the nut 14 slide on the inner side of the square groove 23, and the nut 14 is limited. In the process of moving the display body 1, in order to ensure the stability of the instrument movement, the second support is lifted by the hydraulic push rod 18 The second support column 19 assists in lifting and lowering the display body 1 through the second connecting block 22, and the rectangular blocks 20 on both sides of the second support column 19 limit the second support column 19, and the rollers 21 on both sides of the rectangular block 20 can assist the movement of the second support column 19, and then the second motor 25 inside the shell 6 drives the second threaded column 26 to rotate, and the second threaded column 26 drives the threaded sleeve 27 to move, and the threaded sleeve 27 drives the drill bit 29 to drill into the ground, further fixing the instrument and increasing the stability of the instrument, and the limit blocks 28 on both sides of the threaded sleeve 27 slide on the inner side of the rectangular groove 30, so that the limit blocks 28 limit the threaded sleeve 27.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibration spectrum analyzer for a hydroelectric generator set, comprising a display body (1), characterized in that: A telescopic rod (2) is arranged at the top of the display body (1), a sensor block (3) is arranged at one end of the telescopic rod (2), a first column (4) is movably connected to one side of the surface of the display body (1), a box (5) is fixedly connected to one side of the surface of the first column (4), a shell (6) is fixedly connected to both sides of the surface of the first column (4), a shell (7) is fixedly connected to the bottom end of the shell (6), a second column (8) is movably connected to the other side of the surface of the display body (1), a first motor (9) is arranged at the top of the box (5), an output end of the first motor (9) is rotatably connected to a first gear (10) through a coupling, a transmission chain (11) is meshed on the surface of the first gear (10), a second gear (12) is meshed on the inner side of one end of the transmission chain (11), and a first threaded gear (12) is rotatably connected to the top of the second gear (12). The invention relates to a column (13), wherein a nut (14) is threadedly connected to the surface of the first threaded column (13), and square blocks (15) are fixedly connected to both sides of the nut (14), and a first support column (16) is fixedly connected to the top of the nut (14), and a first connecting block (17) is fixedly connected to the inner side of the top of the first support column (16), and a square groove (23) is provided on the inner wall of the first column (4), and the square block (15) and the square groove (23) form a sliding structure, and a hydraulic push rod (18) is arranged at the bottom end of the inner wall of the second column (8), and the output end of the hydraulic push rod (18) is fixedly connected to the second support column (19), and rectangular blocks (20) are fixedly connected to both sides of the second support column (19), and rollers (21) are arranged on both sides of one end of the rectangular block (20), and a second connecting block (22) is fixedly connected to the inner side of the top of the second support column (19).

2. A vibration spectrum analyzer for a hydroelectric generator set according to claim 1, characterized in that: The inner wall of the second column (8) is provided with a sliding groove (24), and the roller (21) and the sliding groove (24) form a sliding structure.

3. A vibration spectrum analyzer for a hydroelectric generator set according to claim 1, characterized in that: A second motor (25) is arranged on the inner wall of the housing (6); an output end of the second motor (25) penetrates the housing (6) and is rotatably connected to a second threaded column (26) via a coupling; a threaded sleeve (27) is threadedly connected to the surface of the second threaded column (26); two sides of one end of the threaded sleeve (27) are fixedly connected to limit blocks (28); and a drill bit (29) is arranged at one end of the second threaded column (26).

4. A vibration spectrum analyzer for a hydroelectric generator set according to claim 3, characterized in that: The inner wall of the housing (7) is provided with a rectangular groove (30), and the limiting block (28) and the rectangular groove (30) form a limiting structure.

5. A vibration spectrum analyzer for a hydroelectric generator set according to claim 3, characterized in that: The threaded sleeve (27) fits in with the inner wall of the housing (7), and the surface of the threaded sleeve (27) and the inner wall of the housing (7) form a sliding structure.

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