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CN-224214304-U - Self-adjusting type wind turbine generator system variable pitch bearing cracking monitoring device

CN224214304UCN 224214304 UCN224214304 UCN 224214304UCN-224214304-U

Abstract

The utility model provides a self-adjusting type wind turbine generator pitch-variable bearing cracking monitoring device which comprises an outer bearing, an inner bearing, bearing holes and an external control device, wherein the inner bearing rotates in the outer bearing, the bearing holes are distributed and arranged in an annular array and are arranged in the inner bearing and the bearing holes. In addition, the size of detection window and bearing hole interval adaptation, cooperation threaded rod and bolt's regulation structure, accessible blotter elasticity extrusion second fixed plate ensure that the bearing upper and lower surface of equidimension is stabilized the centre gripping, have solved traditional device and have been unable problem of adaptation multisize bearing hole because of fixed knot constructs.

Inventors

  • GUO JINRUI
  • LIU BO

Assignees

  • 北京汇众数能科技有限公司

Dates

Publication Date
20260508
Application Date
20250708

Claims (8)

  1. 1. The utility model provides a self-adjusting wind turbine generator system variable pitch bearing monitoring devices that ftractures, includes outer bearing (101), interior bearing (102), bearing hole (103), external controlling means and detector (2033), and the electricity is connected between detector (2033) and the external controlling means, interior bearing (102) rotate in the inside of outer bearing (101), and bearing hole (103) are inside of annular array arrangement seting up interior bearing (102) and outer bearing (101), its characterized in that still includes: the first fixing plate (201) is arranged at the bottoms of the inner bearing (102) and the outer bearing (101) in a bonding mode, and a first slot is formed in the outer side edge of the first fixing plate (201); The second fixing plate (2034) is arranged on the top of the inner bearing (102) and the outer bearing (101) in a bonding mode, a second slot is formed in the outer side edge of the second fixing plate (2034), and the detector (2033) is arranged in the second slot and used for detecting the bearing hole (103); The running driving mechanism (302) is arranged between the first fixing plate (201) and the second fixing plate (2034), is positioned at the inner side of the inner bearing (102), and comprises a driving gear meshed with the inner tooth surface of the inner bearing (102), and the driving gear is electrically connected with the external control device; The running clamping mechanism (303) is arranged between the first fixing plate (201) and the second fixing plate (2034) and is positioned outside the outer bearing (101), and comprises a torsion spring (3032) and a rubber roller (3035) which is elastically clamped on the outer circular surface of the outer bearing (101) through the torsion spring (3032), wherein the rubber roller (3035) rolls on the outer circular surface of the outer bearing (101) and is kept in a close contact state with the outer circular surface of the outer bearing (101) under the elastic drive of the torsion spring (3032); The adjusting mechanism (202) comprises a driving plate (2031) which is arranged in the first slot and used for adjusting the radial size, and a telescopic plate (2032) which is connected between the driving plate (2031) and the detector (2033) and used for adjusting the axial size, wherein the driving plate (2031) is electrically connected with an external control device.
  2. 2. The device for monitoring the cracking of the variable pitch bearing of the self-adjusting wind turbine generator system according to claim 1, wherein the running driving mechanism comprises a first fixing rod (2035), a first gear (3036), a second gear (3037) and a threaded rod (2036), the bottom end of the first fixing rod (2035) is fixed on the upper surface of the first fixing plate (201), the top end of the first fixing rod (2035) slides through a second fixing plate (2034), the threaded rod (2036) is fixedly connected to the top of the first fixing rod (2035), the bolt (2037) is installed on the threaded rod (2036) to fix the second fixing plate (2034), the first gear (3036) and the second gear (3037) are sleeved on the first fixing rod (2035) and meshed with the inner tooth surface of the inner bearing (102), and the first gear and the second gear are driven by the external control device to roll along the inner tooth surface of the inner bearing (102).
  3. 3. The device for monitoring the cracking of the pitch bearing of the self-adjusting wind turbine generator system according to claim 2, wherein a buffer pad (2038) is fixedly connected to the bottom end of the bolt (2037), and the bolt (2037) presses the upper surface of the second fixing plate (2034) through the buffer pad (2038).
  4. 4. The device for monitoring cracking of a pitch bearing of an automatic adjustment type wind turbine generator according to claim 1, wherein the walking clamping mechanism comprises two sets of clamping assemblies which are symmetrically arranged on the left side and the right side of the expansion plate (2032).
  5. 5. The device for monitoring the cracking of the variable pitch bearing of the self-adjusting wind turbine generator set according to claim 4, wherein the clamping assembly comprises a fixed block (301), a second fixed rod (3031), a torsion spring (3032), a supporting plate (3033), a circular groove plate (3034) and a rubber roller (3035), the fixed block (301) is provided with an upper fixed block and a lower fixed block respectively fixed on the top surface of the driving plate (2031) and the side surface of the telescopic plate (2032), the second fixed rod (3031) is arranged between the upper fixed block and the lower fixed block (301), the torsion spring (3032) is sleeved at two ends of the second fixed rod (3031), two ends of the torsion spring (3032) are fixedly connected with the second fixed rod (3031) and the fixed block (301), one end of the supporting plate (3033) is fixedly connected with the second fixed rod (3031), the other end of the supporting plate (3033) is fixedly connected with the circular groove plate (3034), and the rubber roller (3035) is arranged in the circular groove plate (3034) and can roll.
  6. 6. The device for monitoring the cracking of the pitch bearing of the self-adjusting wind turbine generator system according to claim 1, wherein a detection window (2039) communicated with the second slot is arranged on the bottom surface of the second fixing plate (2034), the detection window (2039) corresponds to the position of the bearing hole (103), and the detector (2033) detects the bearing hole (103) through the detection window.
  7. 7. The device for monitoring the cracking of the pitch bearing of the self-adjusting wind turbine generator system according to claim 1, wherein the driving plate (2031) is installed in the first slot and can slide in the first slot under the driving action of the external control device, and the detector (2033) is driven by the telescopic plate (2032) to synchronously slide when the driving plate (2031) slides, so that the radial size is adjusted.
  8. 8. The device for monitoring the cracking of the pitch bearing of the self-adjusting wind turbine generator system according to claim 1, wherein the expansion plate (2032) is an elastic expansion plate, an elastic tension spring is arranged in the expansion plate, and the detector (2033) and the second fixing plate (2034) are always attached to the upper surfaces of the outer bearing (101) and the inner bearing (102) under the action of the elastic tension spring.

Description

Self-adjusting type wind turbine generator system variable pitch bearing cracking monitoring device Technical Field The utility model relates to the technical field of wind power component monitoring, in particular to a device for monitoring cracking of a variable pitch bearing of an automatic adjustment type wind turbine generator. Background Wind power part monitoring refers to comprehensive inspection and test of each part in a wind generating set so as to ensure normal operation and safety of the wind generating set. The inspection includes a number of aspects of mechanical components, electrical systems, structural components, and the like. At present, the wind driven generator runs in severe environments such as high altitude, strong wind, large temperature difference and the like for a long time, parts (such as a gear box, a bearing, blades and the like) are easily affected by fatigue load, corrosion and abrasion, if manufacturing defects or running faults exist, shutdown and maintenance cost are possibly increased greatly (such as a single unit of offshore wind power is lost for tens of thousands of yuan) and even safety accidents (such as blade fracture and falling) are caused. The pitch bearing is a key component in the wind turbine generator, and is mainly used for connecting a fan blade and a hub and controlling the rotation angle (namely pitch action) of the blade. The wind turbine blade has the core functions of adjusting the angle of the blade, bearing complex load, guaranteeing safe operation and improving the power generation efficiency. Therefore, the cracking condition of the pitch bearing needs to be monitored during maintenance of the wind turbine generator. There are some reports in the art about monitoring bearing holes in a pitch bearing, but at present, all the monitoring devices adopt a fixed structure, and cannot adapt to the pitch bearing monitoring problem of multiple-size bearing holes. Disclosure of utility model The utility model aims to solve the problem that bearing holes with various sizes cannot be flexibly adapted to monitoring in the prior art, and provides a device for monitoring cracking of a variable-pitch bearing of an automatic adjustment type wind turbine generator. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a self-adjusting formula wind turbine generator system variable pitch bearing monitoring devices that ftractures, includes outer bearing, inner bearing, bearing hole, external controlling means and detector, and the electricity is connected between detector and the external controlling means, the inner bearing rotates in the inside of outer bearing, and the bearing hole is the inside of annular array arrangement seting up inner bearing and outer bearing, still includes: the first fixing plate is arranged at the bottoms of the inner bearing and the outer bearing in a bonding mode, and a first slot is formed in the outer side edge of the first fixing plate; The second fixing plate is arranged at the top of the inner bearing and the outer bearing in a bonding way, a second slot is formed in the outer side edge of the second fixing plate, and the detector is arranged in the second slot and detects the bearing hole; The running driving mechanism is arranged between the first fixed plate and the second fixed plate, is positioned at the inner side of the inner bearing, comprises a driving gear meshed with the inner tooth surface of the inner bearing, and is electrically connected with the external control device; The running clamping mechanism is arranged between the first fixing plate and the second fixing plate, is positioned at the outer side of the outer bearing, and comprises a torsion spring and a rubber roller which is elastically clamped on the outer circular surface of the outer bearing through the torsion spring, and the rubber roller rolls on the outer circular surface of the outer bearing and is kept in a close-fitting state with the outer circular surface of the outer bearing under the elastic drive of the torsion spring; the adjusting mechanism comprises a driving plate and a telescopic plate, wherein the driving plate is arranged in the first slot and used for adjusting the radial size, the telescopic plate is connected between the driving plate and the detector and used for adjusting the axial size, and the driving plate is electrically connected with the external control device. Further, walk a driving mechanism and include first dead lever, first gear, second gear and threaded rod, the bottom mounting of first dead lever is in the upper surface of first fixed plate, and the top of first dead lever slides and passes the second fixed plate, and threaded rod fixed connection is at the top of first dead lever, and the bolt is installed on the threaded rod and is fixed the second fixed plate, and first gear and second gear cover are established on first dead lever and