CN217842328U - Locking device of wind generating set main bearing locking nut - Google Patents
Locking device of wind generating set main bearing locking nut Download PDFInfo
- Publication number
- CN217842328U CN217842328U CN202221140971.2U CN202221140971U CN217842328U CN 217842328 U CN217842328 U CN 217842328U CN 202221140971 U CN202221140971 U CN 202221140971U CN 217842328 U CN217842328 U CN 217842328U
- Authority
- CN
- China
- Prior art keywords
- locking
- nut
- lock nut
- mounting hole
- locking block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Clamps And Clips (AREA)
Abstract
The utility model provides a locking device of wind generating set base bearing lock nut, include: the middle locking block 1 and the arm part 6; the lock nut is provided with a plurality of clamping grooves 81 on the end surface, and a plurality of end surface mounting holes 82 in the direction parallel to the central axis of the lock nut correspondingly; the middle locking block 1 includes: a middle joint part 1A and a middle mounting hole 12; the middle combining part 1A is matched with the clamping groove 81; the middle mounting hole 12 is used for connecting the middle combining part 1A with the lock nut through one of the clamping grooves 81; the force arm portion 6 is used for connecting with the middle joint portion 1A; when the force arm part 6 exerts force, the force arm part 6 forms torque relative to the lock nut, and the torque is transmitted by the middle locking block 1 to drive the lock nut to rotate around the central axis of the lock nut. The locking device conveniently locks the main bearing locking nut during the scheduled maintenance operation, and is beneficial to improving the working efficiency of the unit operation. The space required for the operation is reduced.
Description
Technical Field
The utility model relates to a wind generating set technical field, concretely relates to wind generating set base bearing lock nut's locking device.
Background
In the process of inspection, operation and maintenance of the wind generating set, a worker for field operation and maintenance (hereinafter referred to as operation and maintenance) needs to maintain the main shaft transmission chain system regularly.
As shown in fig. 2A, 2B, and 3, the locking grooves 81 are uniformly provided in the circumferential direction of the main bearing lock nut 8. During operation and maintenance, the main bearing locking nut needs to be locked. The locking method that usually adopts is to lean on the flitch or the bar copper in target draw-in groove, then hit the flitch or the bar copper with the sledge hammer for lock nut 8 rotates for main shaft 9, realizes locking the main bearing inner circle in the axial.
At present, wind turbine generators are designed to be more and more compact, and the movable space of personnel in a cabin is also smaller and smaller during field operation and maintenance. The operation and maintenance method which still adopts the hammer striking and locking is not only difficult to operate, but also has a great risk of causing injury to personnel or equipment. In addition, the operation and maintenance method is difficult to control the force, and the risk of damaging the clamping groove and even the locking nut exists.
SUMMERY OF THE UTILITY MODEL
To above problem, the utility model provides a wind generating set base bearing lock nut's locking device to solve among the prior art fortune dimension method operation difficulty, exist damage draw-in groove and even lock nut's one or more in the risk scheduling problem.
The utility model provides a locking device of wind generating set base bearing lock nut, include:
the middle locking block 1 and the arm part 6;
the end face of the locking nut is provided with a plurality of clamping grooves 81, and a plurality of end face mounting holes 82 are correspondingly arranged in the direction parallel to the central axis of the locking nut;
the middle locking block 1 includes: a middle joint part 1A and a middle mounting hole 12;
the middle combining part 1A is matched with the clamping groove 81;
the middle mounting hole 12 is used for connecting the middle combining part 1A with the locking nut through one clamping groove 81;
the force arm part 6 is used for being connected with the middle joint part 1A;
when the force arm part 6 exerts force, the force arm part 6 forms torque relative to the lock nut, and the torque is transmitted by the middle locking block 1 to drive the lock nut to rotate around the central axis of the lock nut.
In some embodiments, the middle joint 1A is L-shaped, and has a transverse end for connecting with the force arm 6 and a longitudinal end for connecting with the lock nut through the middle mounting hole 12 and the locking groove 81.
In some embodiments, the locking device further comprises: the front locking block 2 and the pressing plate 5;
the front locking block 2 comprises: a front joint part 2A, a front abutting part 21 and a front mounting hole 22;
the front combining part 2A is matched with the clamping groove 81;
the front mounting hole 22 is used for connecting the front combining part 2A with the lock nut through the clamping groove 81;
the first end of the pressure plate 5 is used for abutting against the front abutting part 21;
the second end of the pressure plate 5 is used for abutting against the force arm part 6;
when the force arm part 6 exerts force, the force arm part 6 forms torque relative to the lock nut, and the torque is transmitted by the middle locking block 1, the pressure plate 5 and the front locking block 2 to drive the lock nut to rotate around the central axis of the lock nut.
In some embodiments, the locking device further comprises: a rear locking block 3 and a pressure plate 5;
the rear locking block 3 includes: a rear coupling portion 3A, a rear abutting portion 31, and a rear mounting hole 32;
the rear combining part 3A is matched with the clamping groove 81;
the rear mounting hole 32 is used for connecting the rear combining portion 3A with the lock nut through the clamping groove 81;
the first end of the pressure plate 5 is used for abutting against the rear abutting part 31;
the second end of the pressure plate 5 is used for abutting against the force arm part 6;
when acting force is applied to the force arm part 6, torque is formed by the force arm part 6 relative to the lock nut, and the torque is transmitted by the middle locking block 1, the pressure plate 5 and the rear locking block 3 to drive the lock nut to rotate around the central axis of the lock nut.
In some embodiments, a second end of the platen 5 is connected to the force arm 6 via a connector.
In some embodiments, the locking device further comprises: a backing plate 4;
the backing plate 4 is used for abutting against the end face of the locking nut, and at least one adjacent clamping groove 81 is connected with the locking nut through the front combining part 2A, the front mounting hole 22, the middle combining part 1A or the middle mounting hole 12.
In some embodiments, the locking device further comprises:
a backing plate 4; the backing plate 4 is used for abutting against the end face of the locking nut, and is connected with the locking nut through the rear combining part 3A, the rear mounting hole 32, the middle combining part 1A or the middle mounting hole 12 and at least one adjacent clamping groove 81.
The utility model provides a locking device of wind generating set base bearing lock nut can conveniently lock base bearing lock nut when examining fortune dimension surely, and easy and simple to handle, safe in utilization have reduced the required space of operation, can operate in wind generating set's cabin, have conveniently realized the daily fortune dimension of main shaft drive system base bearing lock nut. The locking device is convenient to detach, mount and transport, and is favorable for improving the working efficiency of unit operation and maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1A is a schematic view of a three-dimensional view of a locking device of a main bearing lock nut of a wind turbine generator system according to an embodiment of the present invention;
fig. 1B is a schematic view of a front view perspective of a locking device of a main bearing lock nut of a wind turbine generator system according to an embodiment of the present invention;
fig. 2A is a schematic view of a left side view of a locking device of a main bearing lock nut of a wind turbine generator system according to an embodiment of the present invention in a use state;
fig. 2B is a schematic view of a three-dimensional view angle of the locking device of the main bearing lock nut of the wind turbine generator system according to the embodiment of the present invention in a use state;
fig. 3 is a schematic view of the locking device of the main bearing lock nut of the wind generating set according to the embodiment of the present invention in a disassembled state;
fig. 4 is a schematic view of a middle locking block of the locking device of the main bearing locking nut of the wind generating set according to the embodiment of the present invention;
fig. 5 is a schematic view of a front locking block of a locking device of a main bearing locking nut of a wind generating set according to an embodiment of the present invention;
fig. 6 is a schematic view of a rear locking block of the locking device of the main bearing locking nut of the wind generating set according to the embodiment of the present invention;
fig. 7 is a schematic view of a pressing plate of a locking device of a main bearing locking nut of a wind generating set according to an embodiment of the present invention;
description of the reference numerals: 1. a middle locking block; 11. a coupling hole; 1A, an intermediate bonding portion; 12. a middle mounting hole; 2. a front locking block; 2A, a front combining part; 21. a front abutting portion; 22. a front mounting hole; 3. a rear locking block; 3A, a rear combining part; 31. a rear abutment; 32. a rear mounting hole; 4. a base plate; 5. pressing a plate; 52. a press plate bending part; 52A, a bending part A abuts against the surface; 52B, abutting the bending part B against the surface; 53. a platen vertical portion; 54. a press plate mounting hole; 6. a force arm portion; 7. a fastener; 8. a main bearing lock nut; 81. a card slot; 82. an end face mounting hole; 9. a main shaft; 91. a main bearing rear axle sleeve; 10. and the main bearing inner ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 2A, in the current Megawatt (MW) wind turbine generator set, the main bearing at the rear end of the main shaft 9 in the main shaft transmission system is generally a self-aligning roller bearing, and is respectively positioned by a front bushing and a rear bushing 91 (here, the direction closer to the impeller is front, and the direction closer to the cabin is rear), wherein the rear end is supported against the main bearing inner ring 10 by the rear bushing 91. Usually, a trapezoidal thread is also provided at the shaft end for cooperation with the main bearing lock nut 8 for locking the main bearing inner ring 10 with the main bearing lock nut. For example, the main bearing model of a 2MW or 3MW wind generating set is generally 240/750 or 240/800 self-aligning roller bearing, that is, the inner diameter of the main bearing is generally 750mm or 800mm (for reference, the average value of the total length (including the length of hands) of the upper limbs of a man in the year of 18-60 years is 733 mm). Correspondingly, the trapezoidal thread is respectively Tr750 multiplied by 7 and Tr800 multiplied by 7, the thread pitch is 7mm, and the trapezoidal thread is left-handed or right-handed and has a set screwing length.
Thus, the rear axle sleeve 91 is positioned and locked by the trapezoidal thread (not shown in the figure) arranged at the rear end of the main shaft and the main bearing locking nut 8, so that the phenomenon that the main bearing inner ring 10 moves relative to the main shaft 9 and rotates out of synchronization with the main shaft 9 (namely, inner ring running) is prevented, and the phenomenon that the inner ring runs to cause damage and even damage to the raceway or the roller of the main bearing is avoided.
As shown in fig. 2A and 2B, after the lock nut is screwed to a predetermined screwing length, the lock nut 8 is engaged with the trapezoidal thread and locks the main bearing. The trapezoidal thread has a self-locking function, and can prevent the locking nut 8 from loosening to a certain extent. In the operation process of the wind generating set, along with the accumulation of load, the locking nut can be loosened. Therefore, in the process of polling, operating and maintaining the wind generating set, the operating and maintaining personnel need to lock the main bearing locking nut regularly.
The utility model discloses wind generating set base bearing lock nut's locking device makes things convenient for fortune dimension personnel to apply power on the arm of doing all can, utilizes leverage, can utilize less power in less space for base bearing lock nut rotates, locks the base bearing.
As shown in fig. 1A, 1B, fig. 2A, fig. 2B, fig. 3 and fig. 4, the utility model discloses a locking device of wind generating set main bearing lock nut, include: the middle locking block 1 and the arm part 6; the lock nut is provided with a plurality of clamping grooves 81 on the end surface, and a plurality of end surface mounting holes 82 in the direction parallel to the central axis of the lock nut correspondingly; the middle locking block 1 includes: a middle joint part 1A and a middle mounting hole 12; the middle combining part 1A is matched with the clamping groove 81; the middle mounting hole 12 is used for connecting the middle combining part 1A with the lock nut through one of the clamping grooves 81; the force arm portion 6 is used for connecting with the middle joint portion 1A; when the force arm part 6 exerts force, the force arm part 6 forms torque relative to the lock nut, and the torque is transmitted by the middle locking block 1 to drive the lock nut to rotate around the central axis C of the lock nut.
In the above, the end face mounting hole 82 may be a pin hole, a cylindrical threaded hole, a conical threaded hole, or the like, and may be conveniently and firmly and reliably connected with a standard fastener or a non-standard fastener.
In the above, the middle coupling portion 1A is fitted to the slot 81, for example, the shape of the middle coupling portion 1A is arranged corresponding to the shape of the slot 81 in the direction toward the slot 81.
As described above, the lock nut is provided with the plurality of engaging grooves 81 on the end surface thereof, and the plurality of end surface mounting holes 82 are provided in the direction parallel to the central axis C thereof so as to correspond to the engaging grooves 81, and at this time, the central axis direction of each end surface mounting hole 82 is perpendicular to the end surface of the lock nut 8.
Although the middle locking block 1 can be connected to one of the locking grooves 81, the space in which the operator can operate in the cabin during locking operation is substantially fixed, and therefore, the orientation of the locking groove 81 connected to the middle locking block 1 and the end surface mounting hole 82 on the main bearing locking nut is substantially fixed.
In some embodiments, as shown in fig. 4, the middle joint 1A has an L-shape, and a lateral end thereof is used for connecting with the force arm 6, and a longitudinal end thereof is used for connecting with the lock nut through the middle mounting hole 12 and the locking groove 81.
Referring to fig. 2A, 2B, 3 and 4, the L-shaped middle joint 1A of the middle locking block 1 is adapted to the shape and size of the slot 81, for example, the L-shaped middle joint 1A is an arc surface along the circumferential direction of the slot 81 (or the circumferential direction of the locking nut). The middle locking block 1 is provided with a middle mounting hole 12, such as a threaded hole or a unthreaded hole, so that the fastener 7 sequentially penetrates through the middle mounting hole 12 and the end face mounting hole 82 to fixedly connect the middle locking block 1 with the locking nut 8.
Referring to fig. 2B and 3, a clockwise direction or a counterclockwise direction perpendicular to the central axis C and facing the end surface of the lock nut is defined as a clockwise direction or a counterclockwise direction referred to later.
In some embodiments, the middle locking block 1 is connected to the arm portion 6 through a connector, so that when a force is applied to the arm portion 6, a torque is generated by the arm portion 6, and the torque is transmitted by the middle locking block 1 to drive the locking nut 8 to rotate around the main shaft 9. The arm 6 can then be an L-shaped profile, which comprises a transverse section and a longitudinal section. The transverse section is fixedly connected with the middle locking block 1 through a connecting piece. The longitudinal segments are used for the force to create a torque relative to the main shaft 9. In this case, the connecting element can be a bolt connection (stud, nut) or a pin connection (pin, pin cap). In this case, the middle locking block 1 may be provided with threaded holes, pin holes or raised studs or pins, respectively.
Thus, by acting a clockwise torque on the moment arm 6, the locking device as a whole rotates clockwise relative to the main shaft to lock the main bearing lock nut 8 or lock the main bearing inner ring in the axial direction. The force applying mode of the locking device is suitable for the situation that the trapezoidal thread arranged on the main shaft is right-handed.
Thus, by acting on the moment arm portion 6 with a counterclockwise torque, the locking device as a whole rotates counterclockwise relative to the main shaft to lock the main bearing lock nut 8 or lock the main bearing inner ring in the axial direction. The force applying mode of the locking device is suitable for the situation that the trapezoidal thread arranged on the main shaft is in a left-handed mode.
As shown in fig. 1A, 1B, 2A, 2B, and 3, a coupling hole 11, such as a screw hole or a smooth hole, of the middle locking block 1 is used to allow a connector to pass through the coupling hole 11 and protrude outward. The force arm part 6 is a hollow steel pipe, and the connecting piece passes through the combination hole 11 and extends outwards to extend into the lower end of the force arm part. The lower end of the force arm part 6 is sleeved or screwed on the connecting piece to realize the detachable and reliable connection with the middle locking block 1. In this case, the connecting element can be a bolt connection assembly (stud, nut) or a pin connection assembly (pin, pin cap).
Thus, by acting a clockwise torque on the moment arm 6, the locking device as a whole rotates clockwise relative to the main shaft to lock the main bearing lock nut 8 or lock the main bearing inner ring in the axial direction. The force applying mode of the locking device is suitable for the situation that the trapezoidal thread arranged on the main shaft is right-handed.
Thus, by acting on the moment arm portion 6 with a counterclockwise torque, the locking device as a whole rotates counterclockwise relative to the main shaft to lock the main bearing lock nut 8 or lock the main bearing inner ring in the axial direction. The force applying mode of the locking device is suitable for the situation that the trapezoidal thread arranged on the main shaft is in a left-handed mode.
In order to make the connection of the locking device to the main bearing lock nut 8 stronger, more reliable and more rigid, in some embodiments the locking device further comprises: rear locking block 3 or front locking block 2 and pressure plate 5. As shown in fig. 1A and 3, the front lock block 2 shown in fig. 5 is located in front of the middle lock block 1 in the counterclockwise direction. The rear locking block 3 shown in fig. 6 is located behind the middle locking block 1.
As shown in fig. 1A, 1B, 2B, 3 and 5, in some embodiments, the locking device further includes: the front locking block 2 and the pressing plate 5; the front locking block 2 comprises: a front joint part 2A, a front abutting part 21 and a front mounting hole 22; the front combining part 2A is matched with the clamping groove 81; the front mounting hole 22 is used for connecting the front combining part 2A with the lock nut through the clamping groove 81; the first end of the pressure plate 5 is used for abutting against the front abutting part 21; the second end of the pressure plate 5 is used for abutting against the force arm part 6; when acting force is applied to the force arm part 6, torque is formed by the force arm part 6 relative to the lock nut, and the torque is transmitted by the middle locking block 1, the pressure plate 5 and the front locking block 2 to drive the lock nut to rotate anticlockwise around the central axis of the lock nut.
Referring to fig. 2A, 2B, 3 and 5, the L-shaped front engaging portion 2A of the front lock block 2 is adapted to the shape and size of the slot 81 of the lock nut 8, for example, the L-shaped front engaging portion 2A is an arc surface along the circumferential direction of the slot 81 (or the circumferential direction of the lock nut). The front locking block 2 is provided with a front mounting hole 22, such as a threaded hole or a unthreaded hole, for enabling the fastener 7 to sequentially penetrate through the front mounting hole 22, another clamping groove 81 and another end face mounting hole 82 to fixedly connect the front locking block 2 with the locking nut 8. The front abutment 21 has a stepped end face, a first end of the pressure plate 5 being adapted to abut against the stepped end face, and a second end of the pressure plate 5 being adapted to abut against the force arm 6. Similarly, still referring to fig. 2B, when the pressing plate 5 is connected to the moment arm 6 and the front locking block 2, respectively, a counterclockwise torque is applied to the moment arm 6, so that the locking device as a whole rotates counterclockwise relative to the main shaft to lock the main bearing. This way of assembling the locking device is adapted to the situation where the trapezoidal thread provided on the spindle is left-handed.
Therefore, the moment arm part 6 can increase the rigidity of connection with the locking nut 8 under the supporting action of the pressing plate 5, and more reliably transmits the moment by means of the middle locking block 1 and the front locking block 2 so as to drive the locking nut 8 to rotate around the main shaft 9.
As shown in fig. 1A, 1B, 2B, 3 and 6, in some embodiments, the locking device further includes: a rear locking block 3 and a pressure plate 5; the rear locking block 3 includes: a rear coupling portion 3A, a rear abutting portion 31, and a rear mounting hole 32; the rear combining part 3A is matched with the clamping groove 81; the rear mounting hole 32 is used for connecting the rear combining portion 3A with the lock nut through the clamping groove 81; the first end of the pressure plate 5 is used for abutting against the rear abutting part 31; the second end of the pressure plate 5 is used for abutting against the force arm part 6; when acting force is applied to the force arm part 6, torque is formed by the force arm part 6 relative to the lock nut, and the torque is transmitted by the middle locking block 1, the pressure plate 5 and the rear locking block 3 to drive the lock nut to rotate clockwise around the central axis of the lock nut.
Referring to fig. 2A, 2B, 3 and 5, the L-shaped rear joint portion 3A of the rear locking block 3 is adapted to the shape and size of the slot 81 of the lock nut 8, for example, the L-shaped rear joint portion 3A is an arc surface along the circumferential direction of the slot 81 (or the circumferential direction of the lock nut). The rear locking block 3 is provided with a rear mounting hole 32, such as a threaded hole or a smooth hole, for allowing the fastener 7 to pass through the rear mounting hole 32, the another locking groove 81 and the another end face mounting hole 82 in sequence to fixedly connect the rear locking block 3 with the lock nut 8. The rear abutment 31 has a stepped end face, a first end of the pressure plate 5 being adapted to abut against the stepped end face, and a second end of the pressure plate 5 being adapted to abut against the force arm 6. Similarly, still referring to fig. 2B, when the pressure plate 5 is connected to the moment arm 6 and the rear locking segment 3, respectively, a counterclockwise torque is applied to the moment arm 6, so that the locking device as a whole rotates counterclockwise with respect to the main shaft to lock the main bearing. This way of assembling the locking device is adapted to the situation where the trapezoidal thread provided on the spindle is left-handed.
Therefore, the moment arm part 6 can increase the rigidity of connection with the locking nut 8 under the supporting action of the pressing plate 5, and more reliably transmits the moment by means of the middle locking block 1 and the rear locking block 2 so as to drive the locking nut 8 to rotate around the main shaft 9.
In some embodiments, a second end of the platen 5 is connected to the force arm 6 via a connector. In this case, the connecting element can be a bolt connection (stud, nut) or a pin connection (pin, pin cap).
To make the shape of the pressure plate more suitable for the locking operation, as shown in fig. 7, in some embodiments the pressure plate 5 comprises: the press plate bending part 52 has a bending part a abutting surface 52A and a bending part B abutting surface 52B, which abut against the two sides of the rear abutting part 31 having the step end surface or the two sides of the front abutting part 21 having the step end surface, respectively. The pressing plate 5 further comprises a pressing plate vertical part 53 connected end to end with the pressing plate bending part 52. The opening angle formed by the abutting surface 52A of the bending part A and the vertical part 53 of the pressure plate is beta, and the opening angle formed by the abutting surface 52B of the bending part B and the vertical part 53 of the pressure plate is 90-alpha. The pressing plate vertical portion 53 serves to more conveniently apply pressure or pushing force to form torque using a distance between the point of application and the corresponding catching groove 81. The vertical portion 53 is further provided with a mounting hole 54, such as a threaded hole or a smooth hole, for fixedly coupling with the arm portion 6 via a fastener 7 (including a bolt, a pre-tightening washer or a nut), so that the coupling between the pressing plate 5 and the arm portion 6 is firmer and more stable.
In order to make the connection of the locking device to the main bearing lock nut 8 more secure and reliable, said locking device, as shown in fig. 1A, 1B, 2B, 3, in some embodiments, further comprises a shim plate 4; the backing plate 4 is used for abutting against the end face of the locking nut, and at least one adjacent clamping groove 81 is connected with the locking nut through the front combining part 2A, the front mounting hole 22, the middle combining part 1A or the middle mounting hole 12. Or the backing plate 4 is used for abutting against the end face of the locking nut and is connected with the locking nut through the rear combination part 3A, the rear mounting hole 32, the middle combination part 1A or the middle mounting hole 12 and at least one adjacent clamping groove 81.
So, backing plate 4 pastes closely at lock nut 8's terminal surface, links together back latch segment 3, preceding latch segment 2 and middle latch segment 1, increases the rigidity of being connected with lock nut 8, and more reliably will transmit moment with the help of middle latch segment 1 and preceding latch segment 2 or back latch segment and then drive lock nut 8 and rotate around main shaft 9.
The backing plate 4 can be used for installing each locking block at intervals and can also be used as a positioning surface to ensure that the connecting piece is smoothly installed in each end face installation hole. The shape of the cushion plate 4 can be designed from the aspects of strength and weight reduction, such as a sickle shape, for example, the outer vertical surface can be a plurality of sections of smoothly connected or non-smoothly connected broken line segments, and the inner vertical surface can be a plurality of sections of smoothly connected or non-smoothly connected line segments or an arc shape. Preferably, the shape of the shim plate 4 is adapted to the shape of the partial arc of the locking nut 8.
The following describes a method for using a locking device according to an embodiment of the present invention with reference to the accompanying drawings.
The middle locking block 1, the front locking block 2 and the rear locking block 3 are placed into 3 continuous clamping grooves 81 of the main bearing locking nut 8, 3 groups of fasteners 7 are utilized to penetrate through the backing plate 4, and the middle locking block 1, the front locking block 2 and the rear locking block 3 are respectively installed on the main bearing locking nut 8. At this time, 3 sets of fasteners 7 are respectively installed on the main bearing lock nut 8 through the front mounting hole 22 provided in the front lock block 2, the middle mounting hole 12 provided in the middle lock block 1, and the rear mounting hole 32 provided in the rear lock block 3.
The second end of the pressure plate 5 is mounted with the moment arm 6 by means of a fastener 7. The force arm 6 is nested within a raised stud (i.e. the aforementioned connector) in the middle locking block 1. Depending on the direction of rotation of the union nut 8, the first end of the pressure plate 5 is pressed against a stepped end face of the rear locking piece 3 or the front locking piece 2, for example, onto an abutment plane.
After the installation is completed, as shown in fig. 2A or fig. 2B. Subsequently, a torque is applied through the moment arm 6 to complete the locking of the main bearing lock nut 8.
After locking, the locking device can be separated from the main bearing locking nut 8 according to the reverse order, namely, firstly detaching the pressure plate 5 and the arm part 6, then unscrewing the fastener 7, and detaching the middle locking block 1, the front locking block 2, the rear locking block 3 and the cushion plate 4.
The operation and maintenance needs to be carried among the wind turbine generators, and the weight of the tool influences the efficiency of the whole fixed-time operation and maintenance. The locking device can conveniently lock the main bearing locking nut during the scheduled maintenance, is simple and convenient to operate and safe to use, reduces the space required by operation, can be operated in a cabin of a wind generating set, and conveniently realizes the daily maintenance of the main bearing locking nut of the main shaft transmission system. The locking device is convenient to detach, mount and transport, and is favorable for improving the working efficiency of unit operation and maintenance.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a locking device of wind generating set base bearing lock nut which characterized in that includes:
a middle locking block (1) and a moment arm part (6);
the end face of the locking nut is provided with a plurality of clamping grooves (81), and a plurality of end face mounting holes (82) are correspondingly arranged in the direction parallel to the central axis of the locking nut;
the middle locking block (1) comprises: an intermediate coupling part (1A) and an intermediate mounting hole (12);
the middle combining part (1A) is matched with the clamping groove (81);
the middle mounting hole (12) is used for connecting the middle combination part (1A) with the locking nut through any clamping groove (81);
the force arm (6) is used for connecting with the middle joint part (1A);
when force is applied to the force arm part (6), torque is formed by the force arm part (6) relative to the lock nut, and the torque is transmitted by the middle locking block (1) to drive the lock nut to rotate around the central axis of the lock nut.
2. Locking device according to claim 1,
the middle joint part (1A) is L-shaped, the transverse end of the middle joint part is connected with the force arm part (6), and the longitudinal end of the middle joint part is connected with the locking nut through the middle mounting hole (12) and the clamping groove (81).
3. The locking device of claim 1, further comprising:
the front locking block (2) and the pressing plate (5);
the front locking block (2) comprises: a front combination part (2A), a front abutting part (21) and a front mounting hole (22);
the front combining part (2A) is matched with the clamping groove (81);
the front mounting hole (22) is used for connecting the front combination part (2A) with the locking nut through the clamping groove (81);
the first end of the pressure plate (5) is used for abutting against the front abutting part (21);
a second end of the pressure plate (5) is used for abutting against the force arm part (6);
when acting force is applied to the force arm part (6), the force arm part (6) is utilized to form torque relative to the lock nut, and the torque is transmitted by means of the middle locking block (1), the pressure plate (5) and the front locking block (2) to drive the lock nut to rotate around the central axis of the lock nut.
4. The locking device of claim 1, further comprising:
a rear locking block (3) and a pressure plate (5);
the rear locking block (3) comprises: a rear combination part (3A), a rear abutting part (31) and a rear mounting hole (32);
the rear combining part (3A) is matched with the clamping groove (81);
the rear mounting hole (32) is used for connecting the rear combination part (3A) with the locking nut through the clamping groove (81);
the first end of the pressure plate (5) is used for abutting against the rear abutting part (31);
a second end of the pressure plate (5) is used for abutting against the force arm part (6);
when acting force is applied to the force arm part (6), the force arm part (6) is utilized to form torque relative to the locking nut, and the torque is transmitted by means of the middle locking block (1), the pressing plate (5) and the rear locking block (3) to drive the locking nut to rotate around the central axis of the locking nut.
5. Locking device according to claim 3 or 4,
the second end of the pressure plate (5) is connected with the force arm part (6) through a connecting piece.
6. The locking device of claim 3, further comprising:
a backing plate (4);
the backing plate (4) is used for abutting against the end face of the locking nut, and at least one adjacent clamping groove (81) is connected with the locking nut through the front combination part (2A), the front mounting hole (22), the middle combination part (1A) or the middle mounting hole (12).
7. The locking device of claim 4, further comprising:
a backing plate (4);
the backing plate (4) is used for abutting against the end face of the locking nut, and the rear combination part (3A), the rear mounting hole (32), the middle combination part (1A) or the middle mounting hole (12) and at least one adjacent clamping groove (81) are connected with the locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221140971.2U CN217842328U (en) | 2022-05-12 | 2022-05-12 | Locking device of wind generating set main bearing locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221140971.2U CN217842328U (en) | 2022-05-12 | 2022-05-12 | Locking device of wind generating set main bearing locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217842328U true CN217842328U (en) | 2022-11-18 |
Family
ID=84019599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221140971.2U Active CN217842328U (en) | 2022-05-12 | 2022-05-12 | Locking device of wind generating set main bearing locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217842328U (en) |
-
2022
- 2022-05-12 CN CN202221140971.2U patent/CN217842328U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2857991C (en) | Rotor blade and connecting device | |
| TW202018177A (en) | Assembly comprising a first and a second member and a connector, and a method of assembling such an assembly | |
| CN217842328U (en) | Locking device of wind generating set main bearing locking nut | |
| CN112943544B (en) | Locking disc for wind driven generator | |
| CN106763249A (en) | A kind of assembly method of wind-power locking disc inner ring seam clip assembly device | |
| CN113107756A (en) | System and method for coupling a hub of a wind turbine to a main shaft | |
| CN201705820U (en) | Expansion sleeve for delivering torque between hole and shaft | |
| CN216407395U (en) | Novel large gear ring butt-joint locking device | |
| CN201619066U (en) | Special tool for disassembling and assembling crank pin of oil pumping unit | |
| CN213918044U (en) | Aerogenerator sliding ring extracting tool | |
| CN211841812U (en) | Tool for disassembling bolt of blade root of wind generating set | |
| CN110061443B (en) | Screw-on working head for bolt or nut of high-voltage line suspension clamp | |
| CN212044364U (en) | Centering auxiliary tool for wind driven generator | |
| CN211039264U (en) | Main pump flange dish device | |
| CN114576244B (en) | Bending-resistant bolt connecting device for wind generating set and mounting method | |
| CN212527593U (en) | Installation tool for locking nut of high-speed shafting of wind power gear box | |
| CN113187798B (en) | Nut pre-tightening device for crank pin of pumping unit | |
| CN213017192U (en) | Fastening bolt | |
| CN211370935U (en) | Connecting module assembly and twist lock device thereof | |
| CN110834302A (en) | Tool and method for magnetically drilling blade and breaking bolt | |
| CN217413877U (en) | Torque dismounting tool for steam turbine speed sensor | |
| CN218564219U (en) | Coating roller coupling with adjustable installation distance | |
| CN220435270U (en) | Transmission shaft flange | |
| CN204517312U (en) | Wind power generation penetration pipe structure | |
| CN219799504U (en) | Mounting device for fault indicator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |