Gear speed change device with wear early warning function for wind driven generator

Abstract

The invention discloses a gear speed change device with an abrasion early warning function for a wind driven generator, and relates to the technical field of gear transmission. The gear speed change device comprises a gearbox body, a transmission disc is arranged on the gearbox body, the transmission disc is rotationally connected with the gearbox body, a positioning shaft is arranged on the transmission disc, and a mounting sleeve is arranged on the positioning shaft; a plurality of transmission conical discs are arranged on the side, away from the mounting sleeve, of the transmission disc, a transmission main shaft is rotationally connected into the gearbox body, a transmission gear is arranged on the transmission main shaft and meshed with the transmission conical discs on the transmission disc, a speed increasing gear is arranged at the end, away from the transmission gear, of the transmission main shaft, and a power assisting assembly is arranged in the gearbox body. The power assisting assembly is connected with the transmission main shaft, an induction pipeline is arranged on the main shaft box body, the induction pipeline is electrically connected with the power assisting assembly, a wireless transmitter is arranged in the induction pipeline, a wireless alarm is arranged on the wireless transmitter, and the power assisting device has the functions of power assisting starting and loss detection automatic alarm.

Description

Technical Field

[0001] The invention relates to the technical field of gear transmission, in particular to a gear speed changing device for a wind turbine generator with a wear warning function. Background Art

[0002] Wind energy is a clean, pollution-free, renewable energy source that has been used by people for a long time. Using wind power to generate electricity is very environmentally friendly and has huge wind energy reserves. At the same time, offshore wind power is also an important area for the development of wind energy and an important force in promoting the advancement of wind power technology and industrial upgrading. After wind energy is converted into mechanical energy, the speed of rotation is increased under the action of the speed-increasing structure, thereby maximizing energy conversion. Therefore, the speed-increasing structure is particularly important. It is a crucial link in the energy conversion process. Problems such as losses will directly affect subsequent energy collection issues.

[0003] The speed-increasing structure can achieve the speed-increasing effect mainly from the transmission of gears. Through the mutual advancement between gears, the wind energy can be converted into a higher rotation speed, thereby achieving a stable power generation effect. However, the speed-increasing structure is usually subject to greater resistance, and the kinetic energy of wind energy in transmission is usually also relatively large, which will cause a lot of losses in the speed-increasing structure. At the same time, when wind energy drives the fan blades, the speed is usually slow or even stops, and there will often be continuous start-stop problems, which will cause relatively large energy losses. If the above problems are not solved, the stability of the speed-increasing structure remains to be investigated. Summary of the invention

[0004] The purpose of the present invention is to provide a gear speed change device for a wind turbine generator with a wear warning function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: the gear speed change device comprises a gearbox body, a transmission plate is arranged on the gearbox body, the transmission plate is rotatably connected with the gearbox body, a positioning shaft is arranged on the transmission plate, a mounting sleeve is arranged on the positioning shaft, a plurality of transmission cone plates are arranged on the side of the transmission plate away from the mounting sleeve, a transmission main shaft is rotatably connected with the gearbox body, a transmission gear is arranged on the transmission main shaft, the transmission gear meshes with the transmission cone plate on the transmission plate, a speed increasing gear is arranged on the end of the transmission main shaft away from the transmission gear, a power assist component is arranged in the gearbox body, the power assist component is connected with the transmission main shaft, an induction pipe is arranged on the main shaft housing, the induction pipe is communicated with the main shaft housing, the induction pipe is electrically connected with the power assist component, a wireless transmitter is arranged in the induction pipe, a wireless alarm is arranged on the wireless transmitter, and when the wind turbine is working, the wind will drive the gear installed in the installation The fan blades on the sleeve and the positioning shaft will drive the transmission disc to rotate. During the rotation of the transmission disc, the transmission cone disc will be driven to rotate. The bevel gear on the transmission cone disc will drive the transmission main shaft to rotate. The transmission main shaft transmits power through the speed-increasing gear to achieve power conversion. When rotating, the slower wind force and the slow speed at startup will directly affect the power transmission of the transmission main shaft, which will cause a lot of energy loss. At the same time, it will also cause the torque bearing capacity of the transmission main shaft to increase, which will shorten the service life of the transmission main shaft. At the same time, the parts will be easily damaged, which will greatly increase the maintenance cost. The power-assisting component can increase the power of the working transmission main shaft, so that the transmission main shaft can obtain the initial working speed. At the same time, it can also detect and alarm the internal loss in time, and complete the loss detection through the cooperation of the wireless transmitter and the wireless alarm.

[0006] A sand-proof cavity is provided on the gearbox body, the transmission disc is rotatably connected to the sand-proof cavity, a lubricating bearing is provided on the sand-proof cavity, the outer edge of the transmission disc is connected to the inner edge of the lubricating bearing, a sand-proof thread is provided on the positioning shaft, an extruded rubber sleeve is provided on the sand-proof cavity, and the sand-proof thread is in sliding contact with the extruded rubber sleeve. The working environment of wind turbines is usually outdoor, and the wind will also carry a large amount of flying sand, which will affect the working turntable of the transmission disc. Therefore, during the rotation of the positioning shaft, the sand-proof thread on the positioning shaft will cooperate with the extruded rubber sleeve to discharge sand and other materials out of the equipment to prevent these materials from affecting the stability of the equipment's operation.

[0007] A transmission cavity is provided in the gearbox body, the transmission main shaft is connected to the transmission cavity, a support plate is provided on the transmission main shaft, a support bearing is provided in the transmission cavity, the outer edge of the support plate is connected to the inner edge of the support bearing, the transmission cavity is connected to the sand prevention cavity, a plurality of collecting pipes are provided on the transmission cavity, a lubrication pump is provided on the collecting pipe, the induction pipe is connected to the induction pipe, and the induction pipe is connected to the lubrication pump. When the equipment is in operation, the support plate and the support bearing cooperate with each other to make the transmission of the transmission main shaft more stable, and the lubrication pump replaces the internal lubricating oil in time, and can also provide power for the power assist component at startup. The lubricating oil enters the lubrication pump through the collecting pipe, and then the lubricating oil after filtration and cooling flows back to the transmission cavity through the induction pipe, thereby ensuring the lubrication of the transmission cavity.

[0008] An induction tank is arranged in the induction pipe, a support frame is arranged in the induction pipe, an induction turbine is rotatably connected to the support frame, a breaking rod is arranged on the induction turbine, a blocking wedge ring is also arranged in the induction pipe, a blocking screen is arranged on the blocking wedge ring, and the blocking wedge ring is arranged on the side of the induction tank away from the support frame. After the lubricating oil passes through the induction pipe, the induction turbine on the support frame will rotate along the flow direction of the lubricating oil, and the induction turbine will also drive the breaking rod to rotate, and the breaking rod will evenly break up the passing lubricating oil, and then the evenly mixed lubricating oil will flow onto the blocking screen, and the lubricating oil will pass through the blocking screen, while the sludge and lost iron filings will enter the induction tank along the blocking wedge ring, waiting for detection alarm.

[0009] An energized electrode ring is provided in the induction tank, and a plurality of detection electrodes are slidably connected to the energized electrode ring. The detection electrode is electrically connected to the wireless transmitter through a wire. An extrusion screw is rotatably connected in the induction tank, and a collecting thread is provided in the extrusion screw. A plurality of downstream blades are provided on the extrusion screw. The detection electrode is electrically connected to the power assist component through a wire. When sludge and lubricating oil enter the induction tank, the lubricating oil will drive the downstream blades to move, causing the extrusion screw to rotate, and the collecting thread in the extrusion screw will deposit impurities and sludge, and then the detection electrode will release current, which will be collected by the detection electrode on the other side. By sensing the amount of current, the loss of components is determined, and then the current detection situation is transmitted to the wireless alarm to achieve real-time monitoring.

[0010] A lubrication port and a reflux port are provided on the transmission cavity. The lubrication port is connected with the collection pipe, and the reflux port is connected with the induction pipe. The lubrication port and the reflux port are provided with power-assisting components which are rotatably connected respectively. The power-assisting components include a flow shaft, and a plurality of arc-shaped blades are provided on the flow shaft. The flow shaft is rotatably connected with the lubrication port and the reflux port respectively. Teeth are provided at one end of the flow shaft away from the arc-shaped blades. The lubricating oil is discharged from the lubrication port under the action of the lubrication pump and enters the transmission cavity through the reflux port. The flowing lubricating oil will drive the arc-shaped blades to rotate, and the flow shaft will rotate to complete the kinetic energy collection operation.

[0011] The power-assisting assembly also includes a power-assisting shaft, which is rotationally connected to the transmission cavity. A booster reel is arranged on the power-assisting shaft, which is a metal sheet with elastic recovery function. A power-assisting gear is also arranged in the transmission cavity, and a booster ratchet is arranged in the power-assisting gear. The end of the booster reel away from the power-assisting shaft abuts against the booster ratchet. An anti-reverse spring sheet is arranged in the transmission cavity, and an anti-reverse groove is arranged on the power-assisting shaft. The anti-reverse spring sheet abuts against the anti-reverse groove. The power-assisting gear is meshed with the transmission main shaft. When the flow shaft rotates, the teeth on the flow shaft will drive the power-assisting shaft to rotate. After the power-assisting shaft rotates, it will drive the booster reel to accumulate power, and the anti-reverse spring sheet ensures the irreversibility of kinetic energy collection to avoid energy loss of the booster reel. Subsequently, the booster reel will release its own elastic force under the restriction of the booster ratchet, thereby causing the power-assisting gear to rotate and transmit power to the transmission main shaft.

[0012] A blocking groove is provided in the transmission cavity, and the power-assisting gear is rotationally connected to the blocking groove. A plurality of blocking gears are provided in the blocking groove, and each blocking gear is rotationally connected to the blocking groove respectively. The teeth on the outer edge of the power-assisting gear are respectively engaged with the blocking gears. Under the restriction of the blocking groove, the power-assisting gear will rotate in the blocking groove, and at the same time, the blocking gear can restrict the blocking gear to a circular track, so that the power-assisting gear can release power smoothly.

[0013] A speed increasing cavity is provided in the gearbox body, and a plurality of speed increasing mounting positions are provided in the speed increasing cavity. The speed increasing gear is rotatably connected to the corresponding speed increasing mounting position. A speed increasing plate is provided on the transmission main shaft, and teeth are provided on the speed increasing plate. Each speed increasing gear is respectively meshed with the teeth on the speed increasing plate. A speed increasing rod is provided on the gearbox body, and the speed increasing rod is rotatably connected with the gearbox body. The teeth on the speed increasing rod are meshed with the speed increasing gear. During the power transmission process, the speed increasing plate will be driven by the transmission main shaft and transmit the power to the speed increasing gear. Each speed increasing gear is respectively provided with multi-stage gears to increase the linear speed of the speed increasing gear. Subsequently, the power of the speed increasing gear will be transmitted to the speed increasing rod. Under the restriction of the teeth, the speed increasing rod will transmit the power to the generator set, thereby completing the power transmission operation. At the same time, in order to maximize the power transmission, a more reasonable and energy-reducing staged gear structure can be set, thereby improving the performance of power transmission.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention adopts a structural component with automatic sand removal, which can fully ensure the working stability of the internal structural component and reduce the impact of the external environment on the internal gears. At the same time, a lubrication pump structure is adopted to replace the internal lubricating oil in time. In this process, the loss part of the gear is collected in time, and the collected loss is detected, so that the internal loss situation can be fully known. At the same time, in the process of collecting the lubricating oil, the lubricating oil can also be processed in time to ensure the lubrication condition in the transmission cavity. While the lubrication pump is working, it can also provide power for the power-assisting component. After the power-assisting component is powered by the flow of lubricating oil, it will accumulate power. After the power is accumulated, the booster coil will provide support force and starting power for the transmission main shaft, which can fully reduce the problem of wind energy loss in the power transmission process. At the same time, it can also fully reduce the torque pressure of the transmission main shaft, reduce the loss of parts and components, and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 It is a front cross-sectional structural schematic diagram of the gearbox body of the present invention;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of a local enlargement A;

[0019] Figure 4 It is a schematic diagram of a cross-sectional structure of a gearbox body of the present invention viewed from above;

[0020] Figure 5 for Figure 4 The structural schematic diagram of the partial enlargement of B in the middle;

[0021] Figure 6 This is a schematic diagram of the internal structure of the induction tank of the present invention;

[0022] Figure 7 This is a schematic diagram of the structure of the power assist component of the present invention;

[0023] Figure 8 for Figure 6 Schematic diagram of the structure of C with a partial enlargement in the middle.

[0024] In the figure: 1. gearbox body; 101. sand-proof cavity; 102. lubricating bearing; 103. extruded rubber sleeve; 104. transmission cavity; 105. support bearing; 106. collecting pipe; 107. lubricating pump; 108. lubrication port; 109. return port; 110. blocking groove; 111. speed-increasing cavity; 112. speed-increasing mounting position; 2. transmission plate; 3. positioning shaft; 301. sand-proof thread; 4. mounting sleeve; 5. transmission cone; 6. transmission main shaft; 601. support plate; 602. speed-increasing plate; 603. speed-increasing rod; 7. transmission gear; 8. speed-increasing gear; 9. power assist assembly; 9 01. Flow axis; 902. Arc blade; 903. Power-assisting shaft; 904. Boosting coil; 905. Power-assisting gear; 906. Boosting ratchet; 907. Anti-reverse spring; 908. Anti-reverse groove; 909. Blocking gear; 10. Induction pipe; 1001. Induction tank; 1002. Support frame; 1003. Induction turbine; 1004. Breaking rod; 1005. Blocking wedge ring; 1006. Blocking screen; 1007. Power-on electrode ring; 1008. Detection electrode; 1009. Extrusion spiral; 1010. Downstream blade; 11. Wireless transmitter; 12. Wireless alarm. DETAILED DESCRIPTION

[0025] 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.

[0026] Example: Figure 1-Figure 8As shown, the present invention provides a technical solution, the gear speed change device includes a gearbox body 1, a transmission disc 2 is arranged on the gearbox body 1, the transmission disc 2 is rotatably connected with the gearbox body 1, a positioning shaft 3 is arranged on the transmission disc 2, a mounting sleeve 4 is arranged on the positioning shaft 3, a plurality of transmission cone discs 5 are arranged on the side of the transmission disc 2 away from the mounting sleeve 4, a transmission main shaft 6 is rotatably connected in the gearbox body 1, a transmission gear 7 is arranged on the transmission main shaft 6, the transmission gear 7 is meshed with the transmission cone disc 5 on the transmission disc 2, a speed increasing gear 8 is arranged on the end of the transmission main shaft 6 away from the transmission gear 7, a power assist component 9 is arranged in the gearbox body 1, the power assist component 9 is connected with the transmission main shaft 6, an induction pipe 10 is arranged on the main shaft housing, the induction pipe 10 is communicated with the main shaft housing, the induction pipe 10 is electrically connected with the power assist component 9, a wireless transmitter 11 is arranged in the induction pipe 10, a wireless alarm 12 is arranged on the wireless transmitter 11, when the wind turbine is working, the wind turbine It will drive the fan blades installed on the mounting sleeve 4, and the positioning shaft 3 will drive the transmission disc 2 to rotate. During the rotation of the transmission disc 2, the transmission cone disc 5 will be driven to rotate. The bevel gear on the transmission cone disc will drive the transmission main shaft 6 to rotate. The transmission main shaft 6 transmits power through the speed-increasing gear 8, thereby realizing power conversion. When rotating, the slower wind force and the slower speed at startup will directly affect the power transmission of the transmission main shaft 6, which will cause a large amount of energy loss. At the same time, it will also cause the torque bearing capacity of the transmission main shaft 6 to increase, so that the service life of the transmission main shaft 6 is continuously shortened, and the parts are prone to damage, which greatly increases the maintenance cost. The power-assisting component 9 can increase the power of the working transmission main shaft 6, so that the transmission main shaft 6 obtains the initial working speed, and can also timely detect and alarm the internal loss, and complete the loss detection through the cooperation of the wireless transmitter 11 and the wireless alarm 12.

[0027] A sand-proof cavity 101 is provided on the gearbox body 1, and the transmission disc 2 is rotationally connected to the sand-proof cavity 101. A lubricating bearing 102 is provided on the sand-proof cavity 101, and the outer edge of the transmission disc 2 is connected to the inner edge of the lubricating bearing 102. A sand-proof thread 301 is provided on the positioning shaft 3, and an extruded rubber sleeve 103 is provided on the sand-proof cavity 101. The sand-proof thread 301 is in sliding contact with the extruded rubber sleeve 103. The working environment of the wind turbine is usually an outdoor environment, and the wind will also carry a large amount of flying sand, which will affect the working turntable of the transmission disc 2. Therefore, during the rotation of the positioning shaft 3, the sand-proof thread 301 on the positioning shaft 3 will cooperate with the extruded rubber sleeve 103 to discharge sand and other materials out of the equipment to prevent these materials from affecting the stability of the equipment.

[0028] A transmission cavity 104 is arranged in the gearbox body 1, a transmission main shaft 6 is connected to the transmission cavity 104, a support plate 601 is arranged on the transmission main shaft 6, a support bearing 105 is arranged in the transmission cavity 104, an outer edge of the support plate 601 is connected to an inner edge of the support bearing 105, the transmission cavity 104 is communicated with the anti-sand cavity 101, a plurality of collecting pipes 106 are arranged on the transmission cavity 104, a lubrication pump 107 is arranged on the collecting pipe 106, the induction pipe 10 is communicated with the induction pipe 10, and the induction pipe 10 is communicated with the The lubrication pump 107 is connected. When the equipment is in operation, the support plate 601 and the support bearing 105 cooperate with each other to make the transmission of the transmission main shaft 6 more stable, and the lubrication pump 107 replaces the internal lubricating oil in time. It can also provide power for the power assist component 9 at startup. The lubricating oil enters the lubrication pump 107 through the collection pipe 106, and then the lubricating oil after filtration and cooling flows back to the transmission cavity 104 through the induction pipe 10, thereby ensuring the lubrication of the transmission cavity 104.

[0029] An induction tank 1001 is arranged in the induction pipeline 10, a support frame 1002 is arranged in the induction pipeline 10, an induction turbine 1003 is rotatably connected to the support frame 1002, a breaking rod 1004 is arranged on the induction turbine 1003, a blocking wedge ring 1005 is also arranged in the induction pipeline 10, a blocking screen 1006 is arranged on the blocking wedge ring 1005, and the blocking wedge ring 1005 is arranged on the side of the induction tank 1001 away from the support frame 1002. After the lubricating oil passes through the induction pipeline 10, The induction turbine 1003 on the support frame 1002 will rotate along the flow direction of the lubricating oil, and the induction turbine 1003 will also drive the breaking rod 1004 to rotate. The breaking rod 1004 will evenly break up the passing lubricating oil, and then the evenly mixed lubricating oil will flow to the blocking screen 1006. The lubricating oil passes through the blocking screen 1006, and the sludge and lost iron filings will enter the induction tank 1001 along the blocking wedge ring 1005, waiting for the detection alarm.

[0030] An energized electrode ring 1007 is provided in the induction tank 1001, and a plurality of detection electrodes 1008 are slidably connected to the energized electrode ring 1007. The detection electrode 1008 is electrically connected to the wireless transmitter 11 through a wire. An extrusion coil 1009 is rotatably connected in the induction tank 1001, and a collecting thread is provided in the extrusion coil 1009. A plurality of downstream blades 1010 are provided on the extrusion coil 1009. The detection electrode 1008 is electrically connected to the power assist component 9 through a wire. When sludge and lubricating oil enter the induction tank 1001, the lubricating oil will drive the downstream blades 1010 to move, so that the extrusion coil 1009 rotates, and the collecting thread in the extrusion coil 1009 will deposit impurities and sludge, and then the detection electrode 1008 will release current, which will be collected by the detection electrode 1008 on the other side. By sensing the amount of current, the loss of components is determined, and then the current detection situation is transmitted to the wireless alarm 12 to achieve real-time monitoring.

[0031] The transmission cavity 104 is provided with a lubrication port 108 and a return port 109. The lubrication port 108 is connected to the collection pipe 106, and the return port 109 is connected to the induction pipe 10. The lubrication port 108 and the return port 109 are provided with power-assisting components 9 that are rotatably connected to each other. The power-assisting component 9 includes a flow shaft 901. The flow shaft 901 is provided with a plurality of arc-shaped blades 902. The flow shaft 901 is rotatably connected to the lubrication port 108 and the return port 109, respectively. The end of the flow shaft 901 away from the arc-shaped blades 902 is provided with teeth. The lubricating oil is discharged from the lubrication port 108 under the action of the lubrication pump 107 and enters the transmission cavity 104 through the return port 109. The flowing lubricating oil will drive the arc-shaped blades 902 to rotate, and the flow shaft 901 will rotate to complete the kinetic energy collection operation.

[0032] The booster assembly 9 also includes a booster shaft 903, which is rotatably connected to the transmission cavity 104. A booster reel 904 is provided on the booster shaft 903, and the booster reel 904 is a metal sheet with elastic recovery function. A booster gear 905 is also provided in the transmission cavity 104, and a booster ratchet 906 is provided in the booster gear 905. The booster reel 904 is away from the booster shaft 903. One end of the booster reel 904 abuts against the booster ratchet 906, an anti-reverse spring sheet 907 is provided in the transmission cavity 104, and an anti-reverse groove 908 is provided on the booster shaft 903. The anti-reverse spring sheet 907 abuts against the anti-reverse groove 908. On the reverse groove 908, the power-assisting gear 905 is meshed with the transmission main shaft 6. When the flow shaft 901 rotates, the teeth on the flow shaft 901 will drive the power-assisting shaft 903 to rotate. After the power-assisting shaft 903 rotates, it will drive the booster take-up plate 904 to accumulate power. The anti-reverse spring plate 907 ensures the irreversibility of kinetic energy collection and avoids the problem of energy loss of the booster take-up plate 904. Subsequently, the booster take-up plate 904 will release its own elastic force under the restriction of the boost ratchet 906, thereby causing the power-assisting gear 905 to rotate and transmit power to the transmission main shaft 6.

[0033] A blocking groove 110 is provided in the transmission cavity 104, and the power-assisting gear 905 is rotationally connected to the blocking groove 110. A plurality of blocking gears 909 are provided in the blocking groove 110, and each blocking gear 909 is rotationally connected to the blocking groove 110 respectively. The teeth on the outer edge of the power-assisting gear 905 are respectively engaged with the blocking gears 909. Under the restriction of the blocking groove 110, the power-assisting gear 905 will rotate in the blocking groove 110, and at the same time, the blocking gear 909 can restrict the blocking gear 909 to a circular track, so that the power-assisting gear 905 can release power smoothly.

[0034] A speed increasing cavity 111 is provided in the gearbox body 1, and a plurality of speed increasing mounting positions 112 are provided in the speed increasing cavity 111. The speed increasing gear 8 is rotatably connected to the corresponding speed increasing mounting position 112. A speed increasing disk 602 is provided on the transmission main shaft 6, and teeth are provided on the speed increasing disk 602. Each speed increasing gear 8 is respectively meshed with the teeth on the speed increasing disk 602. A speed increasing rod 603 is provided on the gearbox body 1, and the speed increasing rod 603 is rotatably connected to the gearbox body 1. The teeth on the speed increasing rod 603 are meshed with the speed increasing gear 8. In the process of power transmission, the speed increasing disk 602 will be driven by the transmission main shaft 6 and transmit the power to the speed increasing gear 8. Each speed increasing gear 8 is respectively provided with multi-stage gears to increase the linear speed of the speed increasing gear 8. Subsequently, the power of the speed increasing gear 8 will be transmitted to the speed increasing rod 603. Under the restriction of the teeth, the speed increasing rod 603 will transmit the power to the generator set, and finally complete the power transmission operation. At the same time, in order to maximize the power transmission, a more reasonable and energy-saving staged gear structure can be set, thereby improving the performance of power transmission.

[0035] Working principle: the fan blades are installed on the mounting sleeve 4, the wind will drive the fan blades to rotate, and drive the positioning shaft 3 to rotate. During the rotation of the positioning shaft 3, the anti-sand thread 301 on the positioning shaft 3 will cooperate with the extruded rubber sleeve 103, so as to discharge sand and other materials out of the equipment, and the positioning shaft 3 drives the transmission disc 2 to rotate, and the transmission disc 2 transmits the power to the transmission cone disc 5. The bevel gear on the transmission cone disc 5 will drive the transmission main shaft 6 to rotate, and the transmission main shaft 6 transmits power through the speed increase gear 8, so as to realize the power conversion, and the lubrication pump 107 replaces the internal lubricating oil in time, and the evenly mixed lubricating oil will flow to the blocking screen 1006. The lubricating oil passes through the blocking screen 1006, and the sludge and the lost iron filings will enter the induction tank 1001 along the blocking wedge ring 1005. At the same time, it can also provide power for the power assist component 9 at startup. After the flow shaft 901 rotates, the teeth on the flow shaft 901 will drive the power assist shaft 903 The boost shaft 903 rotates, and the boost reel 904 is driven to store power. Then, the boost reel 904 is restricted by the boost ratchet 906, and releases its own elastic force, so that the boost gear 905 rotates and transmits power to the transmission main shaft 6. The transmission main shaft 6 increases power, so that the transmission main shaft 6 obtains the initial working speed. The lubricating oil enters the lubrication pump 107 through the collection pipe 106. When the sludge and lubricating oil enter the induction tank 1001, the detection electrode 1008 releases current, which is collected by the detection electrode 1008 on the other side. By sensing the amount of current, the loss of components is determined, and timely detection and alarm are performed. The loss detection is completed through the cooperation of the wireless transmitter 11 and the wireless alarm 12. The transmission main shaft 6 drives the speed increasing disk 602 to rotate and transmits power to the speed increasing gear 8. Then, the power of the speed increasing gear 8 is transmitted to the speed increasing rod 603 to complete the speed increasing operation.

[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A gear speed change device for a wind turbine with a wear warning function, characterized in that: The gear speed change device comprises a gearbox body (1), a transmission disc (2) is arranged on the gearbox body (1), the transmission disc (2) is rotatably connected to the gearbox body (1), a positioning shaft (3) is arranged on the transmission disc (2), a mounting sleeve (4) is arranged on the positioning shaft (3), a plurality of transmission cone discs (5) are arranged on the side of the transmission disc (2) away from the mounting sleeve (4), a transmission main shaft (6) is rotatably connected inside the gearbox body (1), a transmission main shaft (6) is arranged on the transmission main shaft (6), and the transmission gear (7) is rotatably connected to the transmission disc (2). The cone disk (5) is meshed, a speed increasing gear (8) is arranged at one end of the transmission main shaft (6) away from the transmission gear (7), a power assist component (9) is arranged in the gearbox body (1), the power assist component (9) is connected with the transmission main shaft (6), an induction pipe (10) is arranged on the main shaft housing, the induction pipe (10) is communicated with the main shaft housing, the induction pipe (10) is electrically connected with the power assist component (9), a wireless transmitter (11) is arranged in the induction pipe (10), and a wireless alarm (12) is arranged on the wireless transmitter (11).

2. A wind turbine gear speed change device with a wear warning function according to claim 1, characterized in that: The gearbox body (1) is provided with a sand-proof cavity (101), the transmission disc (2) is rotatably connected to the sand-proof cavity (101), a lubricating bearing (102) is provided on the sand-proof cavity (101), the outer edge of the transmission disc (2) is connected to the inner edge of the lubricating bearing (102), the positioning shaft (3) is provided with a sand-proof thread (301), the sand-proof cavity (101) is provided with an extruded rubber sleeve (103), and the sand-proof thread (301) is in sliding contact with the extruded rubber sleeve (103).

3. A gear speed change device for a wind turbine generator with a wear warning function according to claim 2, characterized in that: A transmission cavity (104) is arranged in the gearbox body (1), the transmission main shaft (6) is connected to the transmission cavity (104), a support plate (601) is arranged on the transmission main shaft (6), a support bearing (105) is arranged in the transmission cavity (104), an outer edge of the support plate (601) is connected to an inner edge of the support bearing (105), the transmission cavity (104) is communicated with the sand prevention cavity (101), a plurality of collection pipes (106) are arranged on the transmission cavity (104), a lubrication pump (107) is arranged on the collection pipe (106), the induction pipe (10) is communicated with the induction pipe (10), and the induction pipe (10) is communicated with the lubrication pump (107).

4. The gear speed change device for a wind turbine generator with a wear warning function according to claim 1, characterized in that: An induction tank (1001) is arranged in the induction pipeline (10), a support frame (1002) is arranged in the induction pipeline (10), an induction turbine (1003) is rotatably connected to the support frame (1002), a breaking rod (1004) is arranged on the induction turbine (1003), a blocking wedge ring (1005) is also arranged in the induction pipeline (10), a blocking screen (1006) is arranged on the blocking wedge ring (1005), and the blocking wedge ring (1005) is arranged on a side of the induction tank (1001) away from the support frame (1002).

5. A gear speed change device for a wind turbine generator with a wear warning function according to claim 4, characterized in that: The induction tank (1001) is provided with a powered electrode ring (1007), a plurality of detection electrodes (1008) are slidably connected to the powered electrode ring (1007), the detection electrodes (1008) are electrically connected to a wireless transmitter (11) via a wire, an extrusion coil (1009) is rotatably connected to the induction tank (1001), a collecting thread is provided in the extrusion coil (1009), a plurality of downstream blades (1010) are provided on the extrusion coil (1009), and the detection electrodes (1008) are electrically connected to a power assist component (9) via a wire.

6. The gear speed change device for a wind turbine generator with a wear warning function according to claim 3, characterized in that: The transmission cavity (104) is provided with a lubrication port (108) and a return port (109); the lubrication port (108) is communicated with the collection pipe (106); the return port (109) is communicated with the induction pipe (10); the lubrication port (108) and the return port (109) are provided with power-assisting components (9) which are rotatably connected to the lubrication port (108) and the return port (109); the power-assisting component (9) comprises a flow shaft (901); a plurality of arc-shaped blades (902) are provided on the flow shaft (901); the flow shaft (901) is rotatably connected to the lubrication port (108) and the return port (109), respectively; and teeth are provided at one end of the flow shaft (901) away from the arc-shaped blades (902).

7. A gear speed change device for a wind turbine generator with a wear warning function according to claim 6, characterized in that: The power-assisting assembly (9) further comprises a power-assisting shaft (903), wherein the power-assisting shaft (903) is rotatably connected to the transmission cavity (104), a boosting reel (904) is arranged on the power-assisting shaft (903), and the boosting reel (904) is a metal sheet with elastic recovery function, a power-assisting gear (905) is further arranged in the transmission cavity (104), a boosting ratchet (906) is arranged in the power-assisting gear (905), and one end of the boosting reel (904) away from the power-assisting shaft (903) abuts against the boosting ratchet (906), an anti-reverse spring sheet (907) is arranged in the transmission cavity (104), an anti-reverse groove (908) is arranged on the power-assisting shaft (903), and the anti-reverse spring sheet (907) abuts against the anti-reverse groove (908), and the power-assisting gear (905) is meshed with the transmission main shaft (6).

8. The gear speed change device for a wind turbine generator with a wear warning function according to claim 7, characterized in that: A blocking groove (110) is arranged in the transmission cavity (104), the power-assisting gear (905) is rotationally connected to the blocking groove (110), a plurality of blocking gears (909) are arranged in the blocking groove (110), each of the blocking gears (909) is rotationally connected to the blocking groove (110), and the teeth on the outer edge of the power-assisting gear (905) are respectively meshed with the blocking gears (909).

9. A gear speed change device for a wind turbine generator with a wear warning function according to claim 8, characterized in that: The gearbox body (1) is provided with a speed increasing chamber (111), and a plurality of speed increasing mounting positions (112) are provided in the speed increasing chamber (111). The speed increasing gear (8) is rotatably connected to the corresponding speed increasing mounting position (112). The transmission main shaft (6) is provided with a speed increasing disk (602), and the speed increasing disk (602) is provided with teeth. Each of the speed increasing gears (8) is respectively meshed with the teeth on the speed increasing disk (602). The gearbox body (1) is provided with a speed increasing rod (603), and the speed increasing rod (603) is rotatably connected to the gearbox body (1). The teeth on the speed increasing rod (603) are meshed with the speed increasing gear (8).

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