A portable fault detection device for wind turbine generator set

Abstract

The present invention discloses a portable fault detection device for wind turbines, comprising a fault detection box, a movable hole extending to the inner cavity of the fault detection box is opened at the central position of the bottom of the fault detection box, fixed vertical plates are symmetrically welded at the left and right sides of the bottom of the inner cavity of the fault detection box, and two groups of fixed vertical plates are respectively arranged at the left and right sides of the movable hole, the upper ends of the two groups of fixed vertical plates are rotatably connected to a reel that penetrates the fixed vertical plates through bearings, a reel is fixedly sleeved at the middle position of the outside of the reel, and the reel is arranged at a position between the two groups of fixed vertical plates. The portable fault detection device for wind turbines starts the forward and reverse motors through the PLC controller to drive the reel and the reel to rotate synchronously, thereby allowing the magnetic hammer to extend into the lubricating oil, and the iron filings are adsorbed on the magnetic hammer under the magnetic effect of the magnetic hammer, and the content of the iron filings in the lubricating oil is detected by observing and weighing the quality of the iron filings, thereby judging whether the lubricating oil needs to be replaced.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine generator set detection equipment, in particular to a portable wind turbine generator set fault detection device. Background Art

[0002] Wind turbines mainly include wind rotors and generators. Their main function is to convert natural wind energy into electrical energy, which can then be used by human society. During the use of wind turbines, fault detection is often required. Traditional wind turbine fault detection devices can basically meet people's use needs, but there are still certain problems. The specific problems are as follows:

[0003] 1. At present, in the process of using most wind turbines on the market, the gears inside the gearbox are meshed and transmitted with each other. However, since the gears are mostly made of steel, waste chips are generated during the meshing and transmission process, which are then mixed with the lubricating oil in the inner cavity of the gearbox, causing the gearbox to malfunction;

[0004] 2. The fault detection devices of most wind turbines on the market are not convenient for sampling the lubricating oil inside the gearbox, making it difficult to monitor the quality of the lubricating oil. Summary of the invention

[0005] The object of the present invention is to provide a portable wind turbine fault detection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A portable wind turbine fault detection device comprises a fault detection box, wherein a movable hole extending to the inner cavity of the fault detection box is opened at the central position of the bottom of the fault detection box, fixed vertical plates are symmetrically welded at the left and right sides of the bottom of the inner cavity of the fault detection box, and two groups of fixed vertical plates are respectively arranged at the left and right sides of the movable hole, the upper ends of the two groups of fixed vertical plates are rotatably connected to a winding shaft passing through the fixed vertical plates through a bearing, a winding disk is fixedly sleeved at the middle position of the outside of the winding shaft, and the winding disk is arranged at a position between the two groups of fixed vertical plates, a connecting rope passing through the movable hole is fixedly connected at the outer wall of the winding disk, a magnetic hammer is fixedly installed at the bottom position of the connecting rope, a forward and reverse motor is fixedly installed at the right position of the bottom of the inner cavity of the fault detection box, and the forward and reverse motor is arranged at the right position of the two groups of fixed vertical plates, the left output end of the forward and reverse motor is fixed to the right end of the winding shaft through a coupling, a PLC controller is fixedly installed on the right side wall of the fault detection box, and the PLC controller is electrically connected to the forward and reverse motor.

[0007] Preferably, in the above-mentioned portable wind turbine fault detection device, a lower clamping cross plate is fixedly installed at the lower end position of the left and right side walls of the inner cavity of the fault detection box, and the lower clamping cross plate is arranged above the winding reel, and lower clamping recessed holes are opened at equal intervals at the top position of the lower clamping cross plate, and a sampling bottle passing through the top of the lower clamping recessed hole is arranged at the bottom position of the inner cavity of the lower clamping recessed hole, and a label paper is pasted at the middle position of the outer wall of the sampling bottle.

[0008] Based on the above technical features, it is convenient to sample and test the lubricating oil.

[0009] Preferably, in the above-mentioned portable wind turbine fault detection device, second cylinders are symmetrically installed on the left and right sides of the top of the inner cavity of the fault detection box, and the second cylinders are electrically connected to the PLC controller, and the output ends of the bottoms of the two groups of the second cylinders are fixedly installed with upper clamping cross plates, and upper clamping recessed holes matching the sampling bottles are evenly spaced at the middle position of the bottom of the upper clamping cross plate.

[0010] Based on the above technical features, it is convenient to sample and test the lubricating oil.

[0011] Preferably, in the above-mentioned portable wind turbine fault detection device, limiting through holes penetrating the upper clamping horizontal plate are symmetrically opened at left and right sides inside the upper clamping horizontal plate, and two groups of limiting through holes are arranged at the outer sides of the upper clamping concave hole, and the inner cavities of the two groups of limiting through holes are provided with limiting vertical rods penetrating the limiting through holes.

[0012] Based on the above technical features, it is convenient to sample and test the lubricating oil.

[0013] Preferably, in the above-mentioned portable wind turbine fault detection device, suction cups are fixedly installed at the four corners of the bottom of the fault detection box, and a handle is fixedly welded at the middle position of the top of the fault detection box.

[0014] Based on the above technical features, it is convenient to carry and fix the portable wind turbine fault detection device.

[0015] Preferably, in the above-mentioned portable wind turbine fault detection device, a depth detection frame is fixedly welded to the bottom position of the left side wall of the fault detection box, and the top position of the depth detection frame is set to an opening shape, a second elastic pad is fixedly installed on the right side wall of the inner cavity of the depth detection frame, a first cylinder is fixedly installed at the middle position of the left side wall of the depth detection frame, and the first cylinder is electrically connected to the PLC controller, the right output end of the first cylinder extends to the inner cavity position of the depth detection frame and is fixedly installed with a clamping vertical plate, and the right side wall of the clamping vertical plate is fixedly installed with a first elastic pad.

[0016] Based on the above technical features, it is convenient to detect the remaining amount and liquid level of the lubricating oil.

[0017] Preferably, in the above-mentioned portable wind turbine fault detection device, depth detection rods are evenly arranged at the bottom position of the inner cavity of the depth detection frame, and the depth detection rods are arranged at a position between the first elastic pad and the second elastic pad, a threaded groove is opened at the middle position of the bottom of the depth detection rod, a threaded rod matching the threaded groove is installed at the middle position of the top of the depth detection rod, and the height dimension of the threaded rod is smaller than the depth dimension of the threaded groove, and the outer wall of the depth detection rod is engraved with scale lines.

[0018] Based on the above technical features, it is convenient to detect the remaining amount and liquid level of the lubricating oil.

[0019] Preferably, in the above-mentioned portable wind turbine fault detection device, a battery pack is fixedly installed at the left position of the bottom of the inner cavity of the fault detection box, and the battery pack is electrically connected to the first cylinder, the forward and reverse motors, the PLC controller and the second cylinder respectively.

[0020] Based on the above technical features, it is easy to power supply and easy to move.

[0021] Preferably, in the above-mentioned portable wind turbine fault detection device, square holes extending into the inner cavity of the fault detection box are provided at the middle positions of the upper ends of the front and back side walls of the fault detection box, and the height of the square holes is greater than the height of the sampling bottle.

[0022] Based on the above technical features, it is convenient to take and place lubricating oil samples.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] First, through the design of the technical solution, the forward and reverse motors are started by the PLC controller to drive the winding shaft and the winding disk to rotate synchronously, so that the magnetic hammer is extended into the lubricating oil inside the gear box. Under the magnetic effect of the magnetic hammer, the iron filings are adsorbed on the magnetic hammer, and the forward and reverse motors are started by the PLC controller again to drive the winding shaft and the winding disk to rotate in the opposite direction, so as to recover the magnetic hammer. The content of iron filings in the lubricating oil is detected by observing and weighing the quality of the iron filings, and then it is determined whether the lubricating oil needs to be replaced;

[0025] Second, through the design of the technical solution, the two groups of second cylinders are started by the PLC controller to shrink simultaneously, driving the upper clamping horizontal plate to slide upward and separate the upper clamping concave hole from the sampling bottle, and then the sampling bottle at the appropriate position is taken out through the square hole to separate it from the lower clamping concave hole at the corresponding position and store the lubricating oil, and then the information is noted on the label paper on its surface and then put back to its original position;

[0026] Third, through the design of the technical solution, the first cylinder is started to contract through the PLC controller to drive the clamping vertical plate to move to the left, and then an appropriate number of depth detection rods are taken out and screwed to make the threaded connection between the threaded rod and the threaded groove fixed, and then the assembled depth detection rods are inserted into the lubricating oil of the gear box and the liquid level and remaining amount of the lubricating oil are read through the scale lines engraved on the outer wall of the depth detection rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front view cross-sectional structural schematic diagram of the present invention;

[0028] Figure 2 It is a front view structural schematic diagram of the present invention;

[0029] Figure 3 It is a schematic diagram of the left-side sectional structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the top view of the depth detection rod, the first cylinder and the depth detection frame of the present invention;

[0031] Figure 5 It is a front view structural diagram of the depth detection rod and the threaded rod of the present invention;

[0032] Figure 6 For the present invention Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0033] In the figure: 1. depth detection rod; 2. clamping vertical plate; 3. first cylinder; 4. first elastic pad; 5. depth detection frame; 6. threaded groove; 7. battery pack; 8. movable hole; 9. magnetic hammer; 10. connecting rope; 11. winding shaft; 12. suction cup; 13. forward and reverse motor; 14. lower clamping horizontal plate; 15. PLC controller; 16. limit through hole; 17. limit vertical rod; 18. upper clamping horizontal plate; 19. upper clamping concave hole; 20. handle; 21. fault detection box; 22. second cylinder; 23. threaded rod; 24. pick-up and place square hole; 25. lower clamping concave hole; 26. sampling bottle; 27. fixed vertical plate; 28. winding reel; 29. ​​second elastic pad. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-6An embodiment of the present invention provides: a portable wind turbine fault detection device, comprising a fault detection box 21, a movable hole 8 extending to the inner cavity of the fault detection box 21 is opened at the central position of the bottom of the fault detection box 21, fixed vertical plates 27 are symmetrically welded at the left and right sides of the bottom of the inner cavity of the fault detection box 21, and two groups of fixed vertical plates 27 are respectively arranged at the left and right sides of the movable hole 8, the upper ends of the two groups of fixed vertical plates 27 are rotatably connected to the winding shaft 11 passing through the fixed vertical plates 27 through bearings, and the winding disk 28 is fixedly sleeved at the middle position of the outer side of the winding shaft 11, and the winding disk 28 is fixedly sleeved at the middle position of the outer side of the winding shaft 11. The disk 28 is arranged between the two groups of fixed vertical plates 27, and a connecting rope 10 passing through the movable hole 8 is fixedly connected to the outer wall of the winding disk 28, and a magnetic hammer 9 is fixedly installed at the bottom of the connecting rope 10, and a forward and reverse motor 13 is fixedly installed at the right position of the bottom of the inner cavity of the fault detection box 21, and the forward and reverse motor 13 is arranged at the right position of the two groups of fixed vertical plates 27, and the left output end of the forward and reverse motor 13 is fixed to the right end position of the winding shaft 11 through a coupling, and a PLC controller 15 is fixedly installed on the right side wall of the fault detection box 21, and the PLC controller 15 is electrically connected to the forward and reverse motor 13.

[0036] Please refer to the attached figure in the instruction manual Figure 1 , 2 , 3 and 6: A lower clamping cross plate 14 is fixedly installed at the lower end position of the left and right side walls of the inner cavity of the fault detection box 21, and the lower clamping cross plate 14 is arranged above the winding disk 28, and lower clamping recessed holes 25 are opened at equal intervals at the top position of the lower clamping cross plate 14, and a sampling bottle 26 that passes through the top of the lower clamping recessed hole 25 is arranged at the bottom position of the inner cavity of the lower clamping recessed hole 25, and a label paper is pasted at the middle position of the outer wall of the sampling bottle 26.

[0037] Please refer to the attached figure in the instruction manual Figure 1 and 3 : The second cylinders 22 are symmetrically installed on the left and right sides of the top of the inner cavity of the fault detection box 21, and the second cylinders 22 are electrically connected to the PLC controller 15. The output ends of the bottoms of the two groups of second cylinders 22 are fixedly installed with upper clamping cross plates 18, and upper clamping recessed holes 19 matching the sampling bottles 26 are evenly spaced at the middle position of the bottom of the upper clamping cross plates 18.

[0038] Please refer to the attached figure in the instruction manual Figure 1 and 3 : The upper clamping horizontal plate 18 has symmetrically opened limit through holes 16 penetrating the upper clamping horizontal plate 18 on the left and right sides, and two groups of limit through holes 16 are arranged on the outer side of the upper clamping recessed hole 19, and the inner cavities of the two groups of limit through holes 16 are provided with limit vertical rods 17 penetrating the limit through holes 16.

[0039] Please refer to the attached figure in the instruction manual Figure 1 , 2And 3: Suction cups 12 are fixedly installed at the four corners of the bottom of the fault detection box 21, and a handle 20 is fixedly welded at the middle position of the top of the fault detection box 21.

[0040] Please refer to the attached figure in the instruction manual Figure 1 and 4 : A depth detection frame 5 is fixedly welded at the bottom position of the left side wall of the fault detection box 21, and the top position of the depth detection frame 5 is set to an opening shape, a second elastic pad 29 is fixedly installed on the right side wall of the inner cavity of the depth detection frame 5, a first cylinder 3 is fixedly installed at the middle position of the left side wall of the depth detection frame 5, and the first cylinder 3 is electrically connected to the PLC controller 15, the right output end of the first cylinder 3 extends to the inner cavity position of the depth detection frame 5 and is fixedly installed with a clamping vertical plate 2, and a first elastic pad 4 is fixedly installed on the right side wall of the clamping vertical plate 2.

[0041] Please refer to the attached figure in the instruction manual Figure 1 , 4 And 5: Depth detection rods 1 are evenly arranged at the bottom position of the inner cavity of the depth detection frame 5, and the depth detection rod 1 is arranged at a position between the first elastic pad 4 and the second elastic pad 29, a threaded groove 6 is opened at the middle position of the bottom of the depth detection rod 1, and a threaded rod 23 matching the threaded groove 6 is installed at the middle position of the top of the depth detection rod 1, and the height dimension of the threaded rod 23 is smaller than the depth dimension of the threaded groove 6, and the outer wall of the depth detection rod 1 is engraved with scale lines.

[0042] Please refer to the attached figure in the instruction manual Figure 1 and 3 A battery pack 7 is fixedly installed at the left position of the bottom of the inner cavity of the fault detection box 21, and the battery pack 7 is electrically connected to the first cylinder 3, the forward and reverse motor 13, the PLC controller 15 and the second cylinder 22 respectively.

[0043] Please refer to the attached figure in the instruction manual Figure 1 , 2 And 3: A square hole 24 extending into the inner cavity of the fault detection box 21 is provided at the middle position of the upper end of the front and back side walls of the fault detection box 21, and the height of the square hole 24 is greater than the height of the sampling bottle 26.

[0044] Embodiment 1:

[0045] When only the content of iron filings in the lubricating oil is detected and then it is judged whether the lubricating oil needs to be replaced, the handle 20 is first lifted to drive the fault detection box 21 to move synchronously to the appropriate position, and then the four groups of suction cups 12 are used to suck it at the working point, so that it is easy to carry. The power is turned on through the battery pack 7, and the forward and reverse motors 13 are started through the PLC controller 15 to drive the winding shaft 11 to rotate, thereby driving the winding disk 28 to rotate synchronously, so that the connecting rope 10 wound around its outer wall gradually stretches and the magnetic hammer 9 passes through the movable hole 8 and extends into the lubricating oil inside the gear box under the action of gravity. Under the magnetic effect of the magnetic hammer 9, the iron waste generated by the gear meshing is adsorbed on the magnetic hammer 9, and the forward and reverse motors 13 are started again through the PLC controller 15 to drive the winding shaft 11 and the winding disk 28 to rotate in the opposite direction, so that the magnetic hammer 9 is recovered, so that the content of iron filings in the lubricating oil is detected by observing and weighing the quality of the iron filings, and then it is judged whether the lubricating oil needs to be replaced.

[0046] Embodiment 2:

[0047] When only sampling the lubricating oil for storage, first lift the handle 20 to drive the fault detection box 21 to move synchronously to the appropriate position, and then suck it to the working point through the four groups of suction cups 12, so as to facilitate carrying. Connect the power through the battery pack 7, and start the two groups of second cylinders 22 through the PLC controller 15 to shrink simultaneously, thereby driving the upper clamping cross plate 18 to slide upward on the outside of the limiting vertical rod 17 through the limiting through hole 16 and separate the upper clamping recess 19 from the sampling bottle 26. Then, take out the sampling bottle 26 at the appropriate position through the square hole 24 to separate it from the lower clamping recess 25 at the corresponding position, store the lubricating oil, and then put it back to its original position after indicating the information on the label paper on its surface.

[0048] Embodiment 3:

[0049] When only the liquid level of the lubricating oil is measured, first lift the handle 20 to drive the fault detection box 21 to move synchronously to the appropriate position, and then suck it to the working point through the four groups of suction cups 12 for easy carrying. The power is turned on through the battery pack 7, and the first cylinder 3 is started to contract through the PLC controller 15 to drive the clamping vertical plate 2 to move to the left, thereby separating the depth detection rod 1 from the first elastic pad 4 and the second elastic pad 29. Then, take out an appropriate number of depth detection rods 1 to separate them from the depth detection frame 5, and then place multiple groups of depth detection rods 1 in the upper and lower directions in turn and screw them so that the threaded rod 23 and the threaded groove 6 are threadedly connected and fixed. Then, the assembled depth detection rod 1 is inserted into the lubricating oil of the gear box and the liquid level and the remaining amount of the lubricating oil are read through the scale lines engraved on the outer wall of the depth detection rod 1.

[0050] Embodiment 4:

[0051] When detecting the iron filings content in the lubricating oil and judging whether the lubricating oil needs to be replaced and sampling and storing the lubricating oil is continuously performed, first lift the handle 20 to drive the fault detection box 21 to move synchronously to the appropriate position, and then suck it at the working point through the four groups of suction cups 12, so that it is easy to carry, connect the power through the battery pack 7, start the forward and reverse motor 13 through the PLC controller 15 to drive the winding shaft 11 to rotate, thereby driving the winding disk 28 to rotate synchronously, so that the connecting rope 10 wound around its outer wall gradually stretches and under the action of gravity, the magnetic hammer 9 passes through the movable hole 8 and extends into the lubricating oil inside the gear box. Under the magnetic action of the magnetic hammer 9, the iron scraps generated by the gear meshing are adsorbed on the magnetic hammer 9 and re-passed through the PLC controller. 15 starts the forward and reverse motor 13 to drive the winding shaft 11 and the winding disk 28 to rotate in the opposite direction so as to recover the magnetic hammer 9. The content of iron filings in the lubricating oil is detected by observing and weighing the quality of the iron filings to determine whether the lubricating oil needs to be replaced. When it is necessary to sample and preserve the lubricating oil, the two groups of second cylinders 22 are started to shrink simultaneously through the PLC controller 15 to drive the upper clamping horizontal plate 18 to slide upward on the outside of the limiting vertical rod 17 through the limiting through hole 16 and separate the upper clamping recess 19 from the sampling bottle 26. Then, the sampling bottle 26 at the appropriate position is taken out through the taking and placing square hole 24 to separate it from the lower clamping recess 25 at the corresponding position and store the lubricating oil. After that, the information is noted on the label paper on its surface and it is put back to its original position.

[0052] Embodiment 5:

[0053] When detecting the iron filings content in the lubricating oil and judging whether the lubricating oil needs to be replaced and measuring the liquid level of the lubricating oil are continuously performed, first lift the handle 20 to drive the fault detection box 21 to move synchronously to the appropriate position, and then suck it at the working point through the four groups of suction cups 12, so that it is easy to carry, connect the power through the battery pack 7, start the forward and reverse motor 13 through the PLC controller 15 to drive the winding shaft 11 to rotate, thereby driving the winding disk 28 to rotate synchronously, so that the connecting rope 10 wound on its outer wall gradually stretches, and under the action of gravity, the magnetic hammer 9 passes through the movable hole 8 and extends into the lubricating oil inside the gear box, and under the magnetic action of the magnetic hammer 9, the iron scraps generated by the gear meshing are adsorbed on the magnetic hammer 9, and the forward and reverse motors 13 are started again through the PLC controller 15 to drive the winding shaft 11 to rotate, thereby driving the winding disk 28 to rotate synchronously, so that the connecting rope 10 wound around the outer wall gradually stretches, and under the action of gravity, the magnetic hammer 9 passes through the movable hole 8 and extends into the lubricating oil inside the gear box, and under the magnetic action of the magnetic hammer 9, the iron scraps generated by the gear meshing are adsorbed on the magnetic hammer 9, and the forward and reverse motors 13 are started again through the PLC controller 15 to drive the winding shaft 11 to rotate. The reel 11 and the winding disk 28 rotate in opposite directions to recover the magnetic hammer 9. The content of iron filings in the lubricating oil is detected by observing and weighing the quality of the iron filings to determine whether the lubricating oil needs to be replaced. The first cylinder 3 is started to contract through the PLC controller 15, thereby driving the clamping vertical plate 2 to move to the left to separate the depth detection rod 1 from the first elastic pad 4 and the second elastic pad 29. Then, an appropriate number of depth detection rods 1 are taken out to separate them from the depth detection frame 5. Then, multiple groups of depth detection rods 1 are placed in the upper and lower directions in sequence and screwed so that the threaded rod 23 and the threaded groove 6 are threadedly connected and fixed. Then, the assembled depth detection rod 1 is inserted into the lubricating oil of the gear box and the liquid level and the remaining amount of the lubricating oil are read through the scale lines engraved on the outer wall of the depth detection rod 1.

[0054] Embodiment 6:

[0055] When sampling and storing the lubricating oil and measuring the liquid level of the lubricating oil are continuously performed, the handle 20 is first lifted to drive the fault detection box 21 to move synchronously to the appropriate position, and then the fault detection box 21 is sucked to the working point by the four groups of suction cups 12, so that it is easy to carry. The power is turned on through the battery pack 7, and the two groups of second cylinders 22 are started by the PLC controller 15 to shrink at the same time, thereby driving the upper clamping horizontal plate 18 to slide upward on the outside of the limit vertical rod 17 through the limit through hole 16 and separate the upper clamping concave hole 19 from the sampling bottle 26. Then, the sampling bottle 26 at the appropriate position is taken out through the square hole 24 to separate it from the lower clamping concave hole 25 at the corresponding position and store the lubricating oil. After oiling, write the information on the label paper on its surface and put it back to its original position. Start the first cylinder 3 to contract through the PLC controller 15, thereby driving the clamping vertical plate 2 to move to the left, so that the depth detection rod 1 is separated from the first elastic pad 4 and the second elastic pad 29. Then take out an appropriate number of depth detection rods 1 to separate them from the depth detection frame 5, and then place multiple groups of depth detection rods 1 in the upper and lower directions in sequence and screw them so that the threaded rod 23 and the threaded groove 6 are threadedly connected and fixed. Then, extend the assembled depth detection rod 1 into the lubricating oil of the gear box and read the liquid level and remaining amount of the lubricating oil through the scale lines engraved on the outer wall of the depth detection rod 1.

[0056] Embodiment 7:

[0057] When detecting the content of iron filings in the lubricating oil and judging whether the lubricating oil needs to be replaced, sampling and storing the lubricating oil and measuring the liquid level of the lubricating oil are continuously performed, first lift the handle 20 to drive the fault detection box 21 to move synchronously to the appropriate position, and then suck it at the working point through the four groups of suction cups 12, so that it is easy to carry, connect the power through the battery pack 7, start the forward and reverse motors 13 through the PLC controller 15 to drive the winding shaft 11 to rotate, thereby driving the winding disk 28 to rotate synchronously, so that the connecting rope 10 wound on its outer wall gradually stretches and under the action of gravity, the magnetic hammer 9 passes through the movable hole 8 and extends into the lubricating oil inside the gear box. Under the magnetic action of the magnetic hammer 9, the iron waste generated by the gear meshing is adsorbed on the magnetic hammer 9, and the forward and reverse motors 13 are started again through the PLC controller 15 to drive the winding shaft 11 and the winding disk 28 to rotate in the opposite direction, so that the magnetic hammer 9 is recovered. The content of iron filings in the lubricating oil is detected by observing and weighing the quality of the iron filings, so as to judge whether the lubricating oil needs to be replaced. The controller 15 starts the two groups of second cylinders 22 to shrink at the same time, thereby driving the upper clamping horizontal plate 18 to slide upward on the outside of the limiting vertical rod 17 through the limiting through hole 16 and separate the upper clamping recessed hole 19 from the sampling bottle 26. Then, the sampling bottle 26 at the appropriate position is taken out through the square hole 24 to separate it from the lower clamping recessed hole 25 at the corresponding position, and after storing the lubricating oil, the information is noted on the label paper on its surface and then put back to its original position. The PLC controller 15 starts the first cylinder 3 to shrink, thereby driving the clamping vertical plate 2 to move to the left and separate the depth detection rod 1 from the first elastic pad 4 and the second elastic pad 29. Then, an appropriate number of depth detection rods 1 are taken out to separate them from the depth detection frame 5. Then, multiple groups of depth detection rods 1 are placed in the upper and lower directions in sequence and screwed so that the threaded rod 23 and the threaded groove 6 are threadedly connected and fixed. Then, the assembled depth detection rod 1 is inserted into the lubricating oil of the gear box and the liquid level and the residual amount of the lubricating oil are read through the scale lines engraved on the outer wall of the depth detection rod 1.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A portable wind turbine fault detection device, comprising a fault detection box (21), characterized in that: A movable hole (8) extending into the inner cavity of the fault detection box (21) is provided at a central position of the bottom of the fault detection box (21); fixed vertical plates (27) are symmetrically welded at left and right sides of the bottom of the inner cavity of the fault detection box (21); and two groups of fixed vertical plates (27) are respectively arranged at left and right sides of the movable hole (8); the upper ends of the two groups of fixed vertical plates (27) are rotatably connected to a winding shaft (11) penetrating the fixed vertical plates (27) via bearings; a winding disk (28) is fixedly sleeved at a middle position of the outside of the winding shaft (11); and the winding disk (28) is arranged between the two groups of fixed vertical plates (27); and the winding shaft (11) is provided with a plurality of winding disks (28) disposed between the two groups of fixed vertical plates (27). A connecting rope (10) passing through the movable hole (8) is fixedly connected to the outer wall of the reel (28), a magnetic hammer (9) is fixedly installed at the bottom of the connecting rope (10), a forward and reverse motor (13) is fixedly installed at the right position of the bottom of the inner cavity of the fault detection box (21), and the forward and reverse motor (13) is arranged at the right position of the two groups of fixed vertical plates (27), the left output end of the forward and reverse motor (13) is fixed to the right end position of the reel (11) through a coupling, and a PLC controller (15) is fixedly installed on the right side wall of the fault detection box (21), and the PLC controller (15) is electrically connected to the forward and reverse motor (13); A lower clamping horizontal plate (14) is fixedly installed at the lower end positions of the left and right side walls of the inner cavity of the fault detection box (21), and the lower clamping horizontal plate (14) is arranged above the winding disk (28), and lower clamping recessed holes (25) are opened at equal intervals at the top position of the lower clamping horizontal plate (14), and a sampling bottle (26) penetrating the top of the lower clamping recessed hole (25) is arranged at the bottom position of the inner cavity of the lower clamping recessed hole (25), and a label paper is pasted at the middle position of the outer wall of the sampling bottle (26); Second cylinders (22) are symmetrically mounted on the left and right sides of the top of the inner cavity of the fault detection box (21), and the second cylinders (22) are electrically connected to the PLC controller (15). Upper clamping horizontal plates (18) are fixedly mounted on the output ends of the bottoms of the two groups of second cylinders (22), and upper clamping recessed holes (19) matching the sampling bottles (26) are evenly spaced at the middle of the bottom of the upper clamping horizontal plates (18); The upper clamping horizontal plate (18) has symmetrically opened position limit through holes (16) penetrating the upper clamping horizontal plate (18) at left and right sides, and two groups of limit through holes (16) are arranged at the outer sides of the upper clamping recessed hole (19), and the inner cavities of the two groups of limit through holes (16) are provided with limit vertical rods (17) penetrating the limit through holes (16).

2. A portable wind turbine fault detection device according to claim 1, characterized in that: Suction cups (12) are fixedly mounted at the four corners of the bottom of the fault detection box (21), and a handle (20) is fixedly welded at the middle position of the top of the fault detection box (21).

3. A portable wind turbine fault detection device according to claim 1, characterized in that: A depth detection frame (5) is fixedly welded to the bottom position of the left side wall of the fault detection box (21), and the top position of the depth detection frame (5) is set to be open. A second elastic pad (29) is fixedly installed on the right side wall of the inner cavity of the depth detection frame (5). A first cylinder (3) is fixedly installed at the middle position of the left side wall of the depth detection frame (5), and the first cylinder (3) is electrically connected to the PLC controller (15). The right output end of the first cylinder (3) extends to the inner cavity position of the depth detection frame (5) and is fixedly installed with a clamping vertical plate (2). The right side wall of the clamping vertical plate (2) is fixedly installed with a first elastic pad (4).

4. A portable wind turbine fault detection device according to claim 3, characterized in that: Depth detection rods (1) are evenly arranged at the bottom of the inner cavity of the depth detection frame (5), and the depth detection rods (1) are arranged between the first elastic pad (4) and the second elastic pad (29). A threaded groove (6) is provided at the middle of the bottom of the depth detection rod (1). A threaded rod (23) matching the threaded groove (6) is installed at the middle of the top of the depth detection rod (1), and the height of the threaded rod (23) is smaller than the depth of the threaded groove (6). The outer wall of the depth detection rod (1) is engraved with scale lines.

5. A portable wind turbine fault detection device according to claim 1, characterized in that: A battery pack (7) is fixedly installed at the left position of the bottom of the inner cavity of the fault detection box (21), and the battery pack (7) is electrically connected to the first cylinder (3), the forward and reverse motor (13), the PLC controller (15) and the second cylinder (22) respectively.

6. A portable wind turbine fault detection device according to claim 1, characterized in that: The fault detection box (21) is provided with a square hole (24) extending into the inner cavity of the fault detection box (21) at the middle position of the upper end of the front and back side walls, and the square hole (24) has a height dimension greater than the height dimension of the sampling bottle (26).

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