CN114986428A - Fastening mechanism for wind turbine tower bolt - Google Patents
Fastening mechanism for wind turbine tower bolt Download PDFInfo
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- CN114986428A CN114986428A CN202210745784.5A CN202210745784A CN114986428A CN 114986428 A CN114986428 A CN 114986428A CN 202210745784 A CN202210745784 A CN 202210745784A CN 114986428 A CN114986428 A CN 114986428A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 59
- 239000010720 hydraulic oil Substances 0.000 claims description 44
- 239000003921 oil Substances 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 15
- 230000007547 defect Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 7
- 238000010248 power generation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a fastening mechanism for a tower bolt of a wind turbine generator, which comprises a moving device, a driving wrench, a sleeve and a coaxial identification device, wherein the moving device is connected with the driving wrench; the moving device is used for adjusting the position of the driving wrench, the sleeve is used for sleeving the bolt, and the driving wrench is used for applying torque to the sleeve for sleeving the bolt and tightening the bolt; the coaxial identification device is arranged in the driving spanner, and the working end of the coaxial identification device is positioned at the bottom of the driving end of the driving spanner; the coaxial identification device is electrically connected with the mobile device and is used for driving the mobile device and enabling the sleeve and the bolt to be coaxial. The fastening mechanism for the wind turbine tower barrel bolt, which is provided by the technical scheme, can effectively solve the problems that the existing bolt detection and fastening device is difficult to register the bolt and cannot screw the bolt to a target torque, has a simple and reasonable structure, and is light in overall structure so as to overcome the defects in the prior art.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a fastening mechanism for a tower bolt of a wind turbine generator.
Background
The bolt connection has the characteristics of low process requirement, simple structure, convenient assembly and disassembly, reliable structure and high strength, and is a mechanical part with wide application. A wide variety of bolts are found on a variety of machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, meters, supplies, and the like.
For major engineering and heavy mechanical equipment, the problem of detecting the looseness of the bolt becomes a great scientific bottleneck worldwide. Especially for large and medium-sized wind generating sets, the number of bolts used is very large, and the bolts are usually in positions which are narrow and difficult to inspect or in dangerous places with higher risks; in addition, because the wind generating set works in the open air, in the severe environments such as insolation and thunderstorm for a long time, the damage rate of the wind generating set is as high as 40-50%, and meanwhile, because the maintenance technology of the wind generating set cannot keep up with the development speed of wind power generation, once key parts (such as gears, bearings, blades and the like) of the wind generating set break down, the wind generating set can be damaged, and the generator is shut down, so that serious economic loss is brought. Therefore, in order to ensure reliable and stable operation of the wind power generation system, reduce the maintenance cost of the system and ensure that each bolt of the wind turbine tower barrel is in the standard torque range, the method is necessary.
The bottom of the side wall of the wind turbine tower cylinder is generally arranged obliquely outwards, the inner side wall of the wind turbine tower cylinder is provided with a fastening platform surrounding the tower cylinder, and fastening bolts uniformly surround the top of the fastening platform at intervals. In the past, domestic wind power generation enterprise detects fastening bolt one by one through artifical climbing, and personnel climb detects mainly to take simple spanner to detect, and the big risk of the detection degree of difficulty is high, and is efficient. In addition, because of manual detection, the efficiency and the precision are difficult to guarantee, the influence of objective factors of weather is large, the detection and the fastening quality are difficult to guarantee due to the limitation of the environment and the level of engineering technicians.
In order to solve the problems of efficiency and safety caused by manual detection, some wind power generation enterprises develop a device for quickly detecting and fastening a tower bolt of a wind power generation unit, but the existing bolt detecting and fastening device still has the problems that the bolt is difficult to be aligned and cannot be screwed to a target torque, the structure of the existing bolt detecting and fastening device is complex, the whole device is heavy, the detection precision and the operation efficiency of the device are greatly reduced, and the requirement for quickly detecting and maintaining the wind power generation is difficult to meet.
Disclosure of Invention
The invention aims to provide a fastening mechanism for a wind turbine tower bolt, which can effectively solve the problems that the bolt is difficult to register and cannot be screwed to a target torque in the conventional bolt detection and fastening device, has a simple and reasonable structure and a light integral structure, and overcomes the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fastening mechanism for a tower bolt of a wind turbine generator comprises a moving device, a driving wrench, a sleeve and a coaxial identification device; the driving wrench can be rotatably arranged at the moving end of the moving device, the sleeve is sleeved at the driving end of the driving wrench, the moving device is used for adjusting the position of the driving wrench, the sleeve is used for sleeving the bolt, and the driving wrench is used for applying torque to the sleeve sleeved on the bolt and tightening the bolt;
the coaxial identification device is arranged in the driving spanner, and the working end of the coaxial identification device is positioned at the bottom of the driving end of the driving spanner; the coaxial identification device is electrically connected with the mobile device and is used for driving the mobile device and enabling the sleeve and the bolt to be coaxial.
Preferably, the driving wrench comprises a driver and a driving shaft, the driving shaft is rotatably mounted at the moving end of the moving device, the driver is sleeved outside the driving shaft, and the driver is used for driving the driving shaft to rotate;
the coaxial identification device is arranged in the driving shaft, and the working end of the coaxial identification device is positioned at the bottom of the driving shaft.
Preferably, the moving device includes a vertical moving assembly and a horizontal moving assembly, the horizontal moving assembly is movably mounted to the vertical moving assembly up and down, and the driving wrench is movably mounted to the horizontal moving assembly horizontally.
Preferably, the sleeve is detachably sleeved at the driving end of the driving wrench, and the shape of the accommodating cavity of the sleeve is matched with the shape of the bolt;
the fastening mechanism further comprises an alignment resetting device, the alignment resetting device is installed between the moving device and the driving wrench, the driving wrench can be rotatably installed at the bottom of the alignment resetting device, and the alignment resetting device is used for driving the driving wrench to rotate.
Preferably, the sleeve is movably sleeved on the lower part of the driving shaft up and down, the fastening mechanism further comprises a registration auxiliary device, the registration auxiliary device is sleeved outside the driving shaft, and the registration auxiliary device is located between the driver and the sleeve.
Preferably, the registration auxiliary device is an elastic piece, and the fastening mechanism further comprises a third in-position detector; the elastic piece is sleeved outside the driving shaft, one end of the elastic piece is connected with the driver, and the other end of the elastic piece is connected with the sleeve; the third in-place detector is located inside the elastic member and disposed near the driver, and the third in-place detector is electrically coupled to the vertical moving assembly.
Preferably, the registration auxiliary device is an electromagnet, and the fastening mechanism further comprises a fourth in-place detector; the electromagnet is sleeved outside the driving shaft and is used for generating magnetic adsorption to the sleeve when being electrified; the fourth in-place detector is mounted on the lower end face of the sleeve and electrically connected to the vertical moving assembly.
Preferably, the driver is any one of an electric wrench driver or a hydraulic wrench driver.
Preferably, the driver is a hydraulic wrench driver, and the fastening mechanism further comprises a hydraulic supply device, the hydraulic supply device and the driver being connected by a hydraulic oil pipe, the hydraulic supply device being configured to provide working power to the driver.
Preferably, the hydraulic supply device includes a hydraulic pump and a hydraulic oil tank, the driver, the hydraulic pump and the hydraulic oil tank are connected to each other through hydraulic oil pipes, and the interiors of the driver, the hydraulic pump and the hydraulic oil tank are communicated with each other, the hydraulic pump is used for generating pressure to convey hydraulic oil of the hydraulic oil tank to the driver;
the hydraulic supply device further comprises a reversing valve, an overflow valve, a pressure detector, an electric control box and universal wheels, wherein the reversing valve, the overflow valve and the pressure detector are arranged between the driver and the hydraulic pump, the reversing valve is used for switching the flow direction of hydraulic oil, the overflow valve is used for adjusting the output pressure of the hydraulic pump, and the pressure detector is used for detecting the oil pressure of the hydraulic oil;
the electric control box is electrically connected with any one or combination of a plurality of the moving device, the driver and the coaxial identification device, and the universal wheel is installed at the bottom of the hydraulic oil tank.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
1. the existing bolt detection and fastening device generally integrates walking and fastening functions, and the structural movement of the device is mainly used for realizing the walking of the device, but neglects the consideration of realizing the accurate nesting of the bolt, so that the existing bolt detection and fastening device is difficult to register the bolt, and the bolt cannot be screwed to the target torque. Therefore, the moving position is particularly arranged in the fastening mechanism for the wind turbine tower barrel, the sleeve can be moved to the position right above the bolt through the moving device and then is sleeved with the bolt downwards, the bolt is accurately sleeved, the driving wrench is used for applying torque to the sleeve sleeved with the bolt and tightening the bolt, and therefore effective fastening of the bolt is achieved.
2. In the fastening mechanism, a coaxial identification device is provided for identifying whether the sleeve and the bolt are coaxial. The coaxial recognition device is electrically connected to the moving device, the moving device is used for moving the sleeve, when the coaxial recognition device detects that the sleeve and the bolt are coaxial, the moving device stops the alignment movement of the sleeve in the horizontal direction after receiving a coaxial signal of the coaxial recognition device, then moves the sleeve 23 downwards and enables the sleeve to be sleeved into the bolt, and automatic and quick alignment between the sleeve and the bolt by the moving device is conveniently realized.
Drawings
FIG. 1 is a schematic structural diagram of a fastening mechanism for a wind turbine tower bolt according to the present invention.
FIG. 2 is a cross-sectional view of a fastening mechanism for a wind turbine tower bolt of the present invention.
FIG. 3 is a schematic structural diagram of a hydraulic pressure supply device in a fastening mechanism for a wind turbine tower bolt.
Wherein: the device comprises a moving device 21, a vertical moving assembly 211, a vertical moving rail 2111, a vertical moving slider 2112, a horizontal moving assembly 212, a horizontal moving rail 2121, a horizontal moving slider 2122, a driving wrench 22, a driver 221, a driving shaft 222, a sleeve 23, a coaxial recognition device 24, an alignment resetting device 25, a registration assisting device 26, a third in-position detector 261, a bearing seat 27, a hydraulic supply device 28, a hydraulic pump 281, a hydraulic oil tank 282, a relief valve 283, a pressure detector 284, an electric control box 285 and a universal wheel 286.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The technical scheme provides a fastening mechanism for a wind turbine tower bolt, which comprises a moving device 21, a driving wrench 22, a sleeve 23 and a coaxial identification device 24; the driving wrench 22 is rotatably mounted at a moving end of the moving device 21, the socket 23 is sleeved at a driving end of the driving wrench 22, the moving device 21 is used for adjusting the position of the driving wrench 22, the socket 23 is used for sleeving a bolt, and the driving wrench 22 is used for applying torque to the socket 23 sleeving the bolt and tightening the bolt;
the coaxial identification device 24 is installed inside the driving wrench 22, and the working end of the coaxial identification device 24 is located at the bottom of the driving end of the driving wrench 22; the coaxial recognition device 24 is electrically coupled to the moving device 21, and the coaxial recognition device 24 is used for driving the moving device 21 and making the sleeve 23 and the bolt coaxial.
In order to effectively solve the problems that the bolt is difficult to align and cannot be screwed to a target torque in the conventional bolt detection and fastening device, the technical scheme provides a fastening mechanism for a wind turbine tower bolt, which comprises a moving device 21, a driving wrench 22 and a sleeve 23 as shown in fig. 1-3; the driving wrench 22 is rotatably mounted at the moving end of the moving device 21, and the sleeve 23 is sleeved at the driving end of the driving wrench 22; when the fastening mechanism is located in front of the bolt to be fastened, the moving device 21 adjusts the position of the driving wrench 22 so that the sleeve 23 can accurately sleeve the bolt, and after the bolt is tightened, the driving wrench 22 applies torque to the sleeve 23 which sleeves the bolt and tightens the bolt, thereby fastening the bolt. Because the walking and fastening functions of the existing bolt detection and fastening device are generally integrated, the structure of the device is moved and mainly used for realizing the walking of the device, and the consideration for realizing the accurate nesting of the bolt is neglected, the existing bolt detection and fastening device is difficult to register the bolt, and the bolt cannot be screwed to the target torque. Therefore, in order to prevent the above situation, the shifting position 21 is particularly arranged in the fastening mechanism for the wind turbine tower, the sleeve 23 can be shifted to the position right above the bolt through the shifting device 21, then the bolt is sleeved downwards, so that the bolt is accurately sleeved, the torque is applied to the sleeve 23 sleeved on the bolt through the driving wrench 22, and the bolt is tightened, so that the bolt is effectively fastened, in the scheme, the shifting device 21, the driving wrench 22 and the sleeve 23 are matched with each other, so that the tightening rate of the bolt in the wind turbine tower can be effectively improved, and the damage rate of the wind turbine tower is reduced.
In order to achieve automatic and rapid alignment of the moving device 21 between the sleeve 23 and the bolt, the present solution is further provided with a coaxial recognition device 24 for recognizing whether the sleeve 23 and the bolt are coaxial or not, in particular, in the fastening mechanism. Specifically, the coaxial identifying device 24 is electrically connected to the moving device 21, the moving device 21 is used for moving the sleeve 23, when the coaxial identifying device 24 detects that the sleeve 23 and the bolt are coaxial, the moving device 21 stops the alignment movement of the sleeve 23 in the horizontal direction after receiving the coaxial signal of the coaxial identifying device 24, and then moves the sleeve 23 downwards and enables the sleeve 23 to be sleeved on the bolt.
It should be noted that the coaxial recognition device 24 in this embodiment may be an image camera or a video camera, and recognizes the image or the real-time video captured by the inlet of the accommodating cavity of the sleeve 23 through the working end thereof, and determines whether the sleeve 23 and the bolt are coaxial, thereby achieving the precise alignment between the sleeve 23 and the bolt. The coaxial recognition device 24 and the recognition determination method related thereto in the present embodiment can be obtained by using the existing detection device and analysis algorithm, and are not limited and described herein.
Preferably, the fastening mechanism further comprises a bearing seat 27, the bearing seat 27 is mounted on the top of the driving wrench 22, and the driving wrench 22 is rotatably mounted on the moving end of the moving device 21 through the bearing seat 27.
In a preferred embodiment of the present technical solution, the fastening mechanism further includes a bearing seat 27, the bearing seat 27 is installed on the top of the driving wrench 22, and the driving wrench 22 is rotatably installed on the moving end of the moving device 21 through the bearing seat 27, which is simple in structure and reliable in performance, and is beneficial to ensuring smooth rotation of the driving wrench 22 relative to the moving device 21.
More specifically, the driving wrench 22 includes a driver 221 and a driving shaft 222, the driving shaft 222 is rotatably installed at the moving end of the moving device 21, the driver 221 is sleeved outside the driving shaft 222, and the driver 221 is used for driving the driving shaft 222 to rotate;
the coaxial identification device 24 is mounted inside the drive shaft 222, and the working end of the coaxial identification device 24 is located at the bottom of the drive shaft 222.
In one embodiment of the present invention, the driving wrench 22 includes a driving shaft 222 and a driving shaft 221 for driving the driving shaft 222 to rotate, the driving shaft 222 is rotatably mounted at the moving end of the moving device 21, and the driving shaft 222 is sleeved with the driving shaft 221, so as to facilitate the effective transmission of the torque. The coaxial recognition device 24 is installed in the driving shaft 222, and the working end of the coaxial recognition device 24 is located at the bottom of the driving shaft 222, so that the structure is compact, the automation degree and the alignment accuracy of the fastening mechanism are improved on the premise of not increasing the structural design, and the structural simplification and the lightweight design of the fastening mechanism are facilitated.
More specifically, the moving device 21 includes a vertical moving component 211 and a horizontal moving component 212, the horizontal moving component 212 is movably mounted to the vertical moving component 211 up and down, and the driving wrench 22 is movably mounted to the horizontal moving component 212 horizontally.
In an embodiment of the present invention, the moving device 21 includes a vertical moving component 211 and a horizontal moving component 212, the horizontal moving component 212 is movably mounted on the vertical moving component 211 up and down, the driving wrench 22 is movably mounted on the horizontal moving component 212 horizontally, so that the sleeve 23 mounted at the bottom of the driving wrench 22 can be moved in the horizontal direction by the horizontal moving component 212 and moved in the vertical direction by the vertical moving component 211, thereby facilitating the sleeve 23 to accurately sleeve the bolt under the driving of the moving device 21.
Preferably, the vertical moving assembly 211 comprises a vertical moving track 2111 and a vertical moving slider 2112, one end of the vertical moving slider 2112 is slidably connected to any side of the vertical moving track 2111, and the vertical moving slider 2112 slides up and down along the extending direction of the vertical moving track 2111;
the horizontal moving assembly 212 includes a horizontal moving rail 2121 and a horizontal moving slider 2122, and an inner end of the horizontal moving rail 2121 faces the bolt; the other end of the vertical moving slider 2112 is fixedly connected to the outer end of the horizontal moving rail 2121, one end of the horizontal moving slider 2122 is slidably connected to the bottom of the horizontal moving rail 2121, the horizontal moving slider 2122 horizontally slides along the extending direction of the horizontal moving rail 2121, and the other end of the horizontal moving slider 2122 is fixedly connected to the top of the driving wrench 22.
In a preferred embodiment of the present technical solution, the vertical moving assembly 211 and the horizontal moving assembly 212 have the same structure, which facilitates the assembly of the moving device 21 and reduces the production cost of the fastening mechanism. Specifically, because the conventional bolt detection and fastening device generally moves the fastening device for realizing bolt fastening to the vicinity of the bolt to be fastened through the arrangement of the traveling mechanism, the bolt detection and fastening device can be aligned with the bolt to be fastened only by moving the moving device 21 in two directions (i.e., the inner and outer directions and the up and down directions), and the moving line is clear and simple, so that the sleeve 23 can be quickly positioned.
More specifically, the sleeve 23 is detachably sleeved on the driving end of the driving wrench 22, and the shape of the accommodating cavity of the sleeve 23 matches with the shape of the bolt;
the fastening mechanism further comprises an alignment resetting device 25, the alignment resetting device 25 is installed between the moving device 21 and the driving wrench 22, the driving wrench 22 is rotatably installed at the bottom of the alignment resetting device 25, and the alignment resetting device 25 is used for driving the driving wrench 22 to rotate.
In order to promote the suitability of sleeve 23, current bolt-up device generally can set up the limiting plate that is used for adapting to different bolt sizes in sleeve 23, through the regulation to limiting plate extension length in sleeve 23, realizes the clamp tight to different size bolts, fastens it behind the clamp bolt of being convenient for. Since the conventional sleeve 23 generally requires a clamping device including a limiting plate and a clamping bolt for driving the limiting plate, the structure of the fastening device is complicated and heavy.
Therefore, in order to solve the technical problem that the existing fastening device is complex and heavy in structure on the premise of realizing bolt clamping, the sleeve 23 of the scheme is detachably sleeved at the driving end of the driving wrench 22, and the shape of the accommodating cavity of the sleeve 23 is matched with the shape of the bolt, so that the universality of the sleeve 23 is realized; because the size of each layer of bolt in the fan tower section of thick bamboo is unanimous, therefore, when fastening device accomplished the operation to the bolt of one of them layer, can continue the operation to the bolt of next layer through changing the sleeve 23 that holds the chamber size of difference, under convenient to use, the swift prerequisite of change, make fastening device's structure simplify.
Further, since the accommodating cavity of the sleeve 23 has a specific shape, the sleeve 23 can tightly cover the bolt only when the shape of the accommodating cavity of the sleeve 23 must be completely matched with the shape of the bolt (i.e. the corner of the accommodating cavity corresponds to the corner of the bolt and the side of the accommodating cavity corresponds to the side of the bolt). Therefore, the scheme is that the fastening mechanism is additionally provided with the alignment resetting device 25, the alignment resetting device 25 is installed between the moving device 21 and the driving wrench 22, and after the sleeve 23 is moved to the position right above the bolt through the moving device 21, the alignment resetting device 25 is rotated until the shape of the accommodating cavity of the sleeve 23 corresponds to the shape of the bolt needing to be fastened, so that the bolt can be completely sleeved in by the sleeve 23.
Furthermore, since the driver 221 of the driving wrench 22 has a certain volume, in order to prevent the torque position (i.e. the position of the driver 221 after the bolt is tightened) output by the driver 221 last from interfering with the normal movement of the traveling mechanism, when the bolt is tightened and the sleeve 23 is moved upward by the moving device 21 to disengage from the bolt, the present solution can also reset the driver 221 by the aligning and resetting device 25, and rotate it to a proper angle, so that it does not affect the normal movement of the traveling mechanism.
As a preferred aspect of the present invention, a mounting baffle (not shown) is detachably mounted at the bottom of the driving shaft 222, and the sleeve 23 is detachably connected to the driving shaft 222 through the mounting baffle. When sleeve 23 was changed to needs, this scheme accessible was dismantled the installation baffle, can accomplish sleeve 23's change.
It should be noted that, in an embodiment of the present invention, the aligning and resetting device 25 may be a motor.
More specifically, the sleeve 23 is movably sleeved on the lower portion of the driving shaft 222 up and down, the fastening mechanism further includes a registration-assisting device 26, the registration-assisting device 26 is sleeved on the outer portion of the driving shaft 222, and the registration-assisting device 26 is located between the driver 221 and the sleeve 23.
If the shape of the receiving cavity of the sleeve 23 does not completely correspond to the shape of the bolt to be fastened, the sleeve 23 may be driven by the moving device 21 to move downwards, which may cause damage to the bolt and the fastening mechanism, and therefore, in order to avoid the above situation, the present solution further adds a registration assisting device 26 to the fastening mechanism for adjusting the up and down movement of the sleeve 23 relative to the driving shaft 222.
Specifically, the sleeve 23 is fitted to a lower portion of the drive shaft 222 movably up and down, and downward movement of the sleeve 23 with respect to the drive shaft 222 is effected by the registration-assist device 26. When the sleeve 23 is driven by the moving device 21 to move to a position right above the bolt and corresponds to the bolt under the rotation of the alignment resetting device 25, the sleeve 23 firstly moves downwards relative to the driving shaft 222 under the action of gravity through the alignment auxiliary device 26 and sleeves the bolt, and after the bolt is sleeved by the sleeve 23, the shape of the accommodating cavity of the sleeve 23 can be explained to completely correspond to the shape of the bolt to be fastened, and at the moment, the sleeve 23 completely sleeves the bolt under the drive of the moving device 21 (namely, at the moment, the sleeve 23 moves upwards relative to the driving shaft 222 under the drive of the moving device 21), so that the damage of the bolt and the fastening mechanism is avoided, and the service life of the bolt and the fastening mechanism is effectively prolonged.
More specifically, the alignment aid 26 is an elastic member, and the fastening mechanism further includes a third position detector 261; the elastic member is sleeved outside the driving shaft 222, one end of the elastic member is connected with the driver 221, and the other end of the elastic member is connected with the sleeve 23; the third-in-place detector 261 is located inside the elastic member and disposed near the driver 221, and the third-in-place detector 261 is electrically coupled to the vertical moving assembly 211.
Specifically, in an embodiment of the present disclosure, when the sleeve 23 is driven by the horizontal moving assembly 212 to move horizontally to a position right above the bolt to be fastened, the sleeve 23 is driven by the vertical moving assembly 211 to move downward first, and when the sleeve 23 overcomes the elastic force of the elastic member and moves upward relative to the driving shaft 222 to make the top of the sleeve abut against the third in-position detector 261 (at this time, the bottom of the sleeve 23 abuts against the upper end surface of the bolt), the vertical moving assembly 211 receives the in-position signal of the third in-position detector 261 and stops moving downward; then the sleeve 23 is driven by the position-resetting device 25 to rotate, when the shape of the accommodating cavity of the sleeve 23 corresponds to the shape of the bolt to be fastened, the sleeve 23 moves downwards relative to the driving shaft 222 under the action of gravity and sleeves the bolt, the third in-position detector 261 triggers and lowers the vertical moving assembly 211 again, when the top of the sleeve 23 abuts against the third in-position detector 261 again, the vertical moving assembly 211 receives the in-position signal of the third in-position detector 261 and stops moving downwards, and at this time, the sleeve 23 completely sleeves the bolt.
It should be noted that the elastic member in this embodiment may be a spring, and more preferably may be a compression spring. The third in-place detector 261 of the present embodiment may be a micro switch. When the elastic member is a compression spring, the sleeve 23 can move downwards relative to the driving shaft 222 under the action of gravity and the elastic force of the compression spring through the elastic member and sleeve the bolt, which is more beneficial to the sleeve 23 to sleeve the bolt effectively.
More specifically, the alignment aid 26 is an electromagnet, and the fastening mechanism further includes a fourth in-position detector; the electromagnet is sleeved outside the driving shaft 222, and is used for generating magnetic attraction to the sleeve 23 when being electrified; the fourth in-place detector is installed at the lower end surface of the sleeve 23, and the fourth in-place detector is electrically coupled to the vertical moving assembly 211.
Specifically, in another embodiment of the present disclosure, after the electromagnet (not shown in the figure) is powered on, the sleeve 23 is attracted, when the sleeve 23 is driven by the horizontal moving assembly 212 to move horizontally to a position right above the bolt to be fastened, the sleeve 23 is driven by the vertical moving assembly 211 to move downward, and when the top of the sleeve 23 abuts against the fourth in-place detector (at this time, the lower end surface of the sleeve 23 abuts against the upper end surface of the bolt), the vertical moving assembly 211 receives an in-place signal of the fourth in-place detector (not shown in the figure) and stops moving downward; then the sleeve 23 is driven by the contraposition resetting device 25 to rotate, when the shape of the accommodating cavity of the sleeve 23 corresponds to the shape of the bolt required to be fastened, the electromagnet is powered off, the sleeve 23 moves downwards relative to the driving shaft 222 under the action of gravity and sleeves the bolt, the fourth in-position detector triggers and enables the vertical moving assembly 211 to descend again, when the upper end surface of the sleeve 23 is abutted against the upper surface of the fastening platform 31, the vertical moving assembly 211 receives the in-position signal of the fourth in-position detector and stops moving downwards, and at the moment, the sleeve 23 completely sleeves the bolt.
It should be noted that the fourth in-place detector of the present embodiment may be a microswitch.
More specifically, the driver 221 may be an electric wrench driver or a hydraulic wrench driver.
The driving wrench 22 in this embodiment may be provided with torque output power by an electric wrench driver or a hydraulic wrench driver, so as to ensure that the bolt is completely tightened under the driving of the driving wrench 22.
More specifically, the driver 221 is a hydraulic wrench driver, the fastening mechanism further includes a hydraulic supply device 28, the hydraulic supply device 28 and the driver 221 are connected by a hydraulic oil pipe, and the hydraulic supply device 28 is used for supplying working power to the driver 221.
In a preferred embodiment of the present invention, when the driver 221 is a hydraulic wrench driver, the fastening mechanism further comprises a hydraulic supply device 28 for supplying working power to the driver 221, and the hydraulic supply device 28 and the driver 221 are connected by a hydraulic oil pipe (not shown in the figure) to ensure the proper function of the driving wrench 22.
Further, the hydraulic supply device 28 includes a hydraulic pump 281 and a hydraulic oil tank 282, the driver 221, the hydraulic pump 281, and the hydraulic oil tank 282 are connected to each other by hydraulic oil pipes, and the interiors of the driver 221, the hydraulic pump 281, and the hydraulic oil tank 282 are communicated with each other, the hydraulic pump 281 is configured to generate pressure to deliver hydraulic oil of the hydraulic oil tank 282 to the driver 221;
the hydraulic supply device 28 further includes a direction change valve, an overflow valve 283, a pressure detector 284, an electric control box 285 and a universal wheel 286, wherein the direction change valve, the overflow valve 283 and the pressure detector 284 are installed between the driver 221 and the hydraulic pump 281, the direction change valve is used for switching the flow direction of hydraulic oil, the overflow valve 283 is used for regulating the output pressure of the hydraulic pump 281, and the pressure detector 284 is used for detecting the oil pressure of the hydraulic oil;
the electrical control box 285 is electrically coupled to any one or combination of the moving device 21, the driver 221 and the coaxial identification device 24, and the universal wheel 286 is mounted at the bottom of the hydraulic oil tank 282.
Specifically, the hydraulic pressure supply device 28 includes a hydraulic pump 281 and a hydraulic oil tank 282, the driver 221, the hydraulic pump 281, and the hydraulic oil tank 282 are connected to each other by hydraulic oil pipes (not shown in the drawings), and the interiors of the driver 221, the hydraulic pump 281, and the hydraulic oil tank 282 are communicated with each other; when the driving wrench 22 is started, the hydraulic pump 281 generates pressure to transfer hydraulic oil of the hydraulic oil tank 282 to the driver 221, so that the driver 221 applies torque to the driving shaft 222, thereby completing the fastening of the bolt.
Further, the hydraulic pressure supply device 28 further includes a direction change valve (not shown), an overflow valve 283 and a pressure detector 284, and the direction change valve, the overflow valve 283 and the pressure detector 284 are installed between the driver 221 and the hydraulic pump 281. The reversing valve is used for switching the flow direction of the hydraulic oil, and when the fastening mechanism does not need the hydraulic oil, the reversing valve switches the flow direction of the hydraulic oil, so that the hydraulic oil can flow back to the hydraulic oil tank 282; the pressure detector 284 is used for detecting the oil pressure of the hydraulic oil, the overflow valve 283 is used for adjusting the output pressure of the hydraulic pump 281, and technicians can adjust the output pressure of the hydraulic pump 281 according to actual needs, so as to facilitate the improvement of the controllability of the fastening mechanism.
Furthermore, the hydraulic supply device 28 in the present embodiment may further include an electrical control box 285, and the electrical control box 285 is electrically connected to any one or a combination of more of the moving device 21, the driver 221 and the coaxial identification device 24, so that a technician can adjust relevant parameters of the fastening mechanism through the electrical control box 285, which is beneficial to further improve the controllability of the fastening mechanism. In a preferred embodiment of the present invention, the hydraulic supply device 28 further includes a universal wheel 286 mounted to the bottom of the hydraulic tank 282 to facilitate movement of the hydraulic supply device 28.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …", "above … …", "above … …, on a surface", "above", and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides a fastening device for wind turbine generator system tower section of thick bamboo bolt which characterized in that: comprises a moving device, a driving wrench, a sleeve and a coaxial identification device; the driving wrench is rotatably arranged at the moving end of the moving device, the sleeve is sleeved at the driving end of the driving wrench, the moving device is used for adjusting the position of the driving wrench, the sleeve is used for sleeving the bolt, and the driving wrench is used for applying torque to the sleeve sleeving the bolt and tightening the bolt;
the coaxial identification device is arranged in the driving spanner, and the working end of the coaxial identification device is positioned at the bottom of the driving end of the driving spanner; the coaxial identification device is electrically connected with the mobile device and is used for driving the mobile device and enabling the sleeve and the bolt to be coaxial.
2. The fastening mechanism for the wind turbine tower bolt of claim 1, wherein: the driving wrench comprises a driver and a driving shaft, the driving shaft is rotatably arranged at the moving end of the moving device, the driver is sleeved outside the driving shaft, and the driver is used for driving the driving shaft to rotate;
the coaxial identification device is arranged in the driving shaft, and the working end of the coaxial identification device is positioned at the bottom of the driving shaft.
3. The fastening mechanism for the wind turbine tower bolt as recited in claim 2, wherein: the moving device comprises a vertical moving assembly and a horizontal moving assembly, the horizontal moving assembly is movably mounted on the vertical moving assembly up and down, and the driving wrench is movably mounted on the horizontal moving assembly horizontally.
4. The fastening mechanism for the wind turbine tower bolt as recited in claim 3, wherein: the sleeve is detachably sleeved at the driving end of the driving spanner, and the shape of an accommodating cavity of the sleeve is matched with that of the bolt;
the fastening mechanism further comprises an alignment resetting device, the alignment resetting device is installed between the moving device and the driving wrench, the driving wrench can be rotatably installed at the bottom of the alignment resetting device, and the alignment resetting device is used for driving the driving wrench to rotate.
5. The fastening mechanism for the wind turbine tower bolt of claim 4, wherein: the sleeve is sleeved on the lower portion of the driving shaft in a vertically movable mode, the fastening mechanism further comprises a registration auxiliary device, the registration auxiliary device is sleeved outside the driving shaft, and the registration auxiliary device is located between the driver and the sleeve.
6. The fastening mechanism for the wind turbine tower bolt of claim 5, wherein: the alignment auxiliary device is an elastic piece, and the fastening mechanism further comprises a third in-position detector; the elastic piece is sleeved outside the driving shaft, one end of the elastic piece is connected with the driver, and the other end of the elastic piece is connected with the sleeve; the third in-place detector is located inside the elastic member and disposed near the driver, and the third in-place detector is electrically coupled to the vertical moving assembly.
7. The fastening mechanism for the wind turbine tower bolt of claim 5, wherein: the registration auxiliary device is an electromagnet, and the fastening mechanism further comprises a fourth in-place detector; the electromagnet is sleeved outside the driving shaft and is used for generating magnetic adsorption to the sleeve when being electrified; the fourth in-place detector is mounted on the lower end face of the sleeve and electrically connected to the vertical moving assembly.
8. The fastening mechanism for the wind turbine tower bolt of claim 2, wherein: the driver is any one of an electric wrench driver or a hydraulic wrench driver.
9. The fastening mechanism for the wind turbine tower bolt of claim 8, wherein: the driver is a hydraulic wrench driver, the fastening mechanism further comprises a hydraulic supply device, the hydraulic supply device is connected with the driver through a hydraulic oil pipe, and the hydraulic supply device is used for supplying working power to the driver.
10. The fastening mechanism for the wind turbine tower bolt of claim 9, wherein: the hydraulic supply device comprises a hydraulic pump and a hydraulic oil tank, the driver, the hydraulic pump and the hydraulic oil tank are connected with each other through hydraulic oil pipes, the driver, the hydraulic pump and the hydraulic oil tank are communicated with each other, and the hydraulic pump is used for generating pressure to convey hydraulic oil of the hydraulic oil tank to the driver;
the hydraulic supply device also comprises a reversing valve, an overflow valve, a pressure detector, an electric control box and universal wheels, wherein the reversing valve, the overflow valve and the pressure detector are arranged between the driver and the hydraulic pump, the reversing valve is used for switching the flow direction of hydraulic oil, the overflow valve is used for adjusting the output pressure of the hydraulic pump, and the pressure detector is used for detecting the oil pressure of the hydraulic oil;
the electric control box is electrically connected with any one or combination of a plurality of the moving device, the driver and the coaxial identification device, and the universal wheel is arranged at the bottom of the hydraulic oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210745784.5A CN114986428A (en) | 2022-06-29 | 2022-06-29 | Fastening mechanism for wind turbine tower bolt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210745784.5A CN114986428A (en) | 2022-06-29 | 2022-06-29 | Fastening mechanism for wind turbine tower bolt |
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| CN114986428A true CN114986428A (en) | 2022-09-02 |
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| CN202210745784.5A Pending CN114986428A (en) | 2022-06-29 | 2022-06-29 | Fastening mechanism for wind turbine tower bolt |
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