CN218913063U - Tool for replacing variable-pitch bearing - Google Patents
Tool for replacing variable-pitch bearing Download PDFInfo
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- CN218913063U CN218913063U CN202320146818.9U CN202320146818U CN218913063U CN 218913063 U CN218913063 U CN 218913063U CN 202320146818 U CN202320146818 U CN 202320146818U CN 218913063 U CN218913063 U CN 218913063U
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- pitch bearing
- hanging
- hanging beam
- crane
- replacing
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- 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
Abstract
The utility model belongs to the technical field of maintenance devices for variable-pitch bearings, and discloses a tool for replacing a variable-pitch bearing. Two installation parts are correspondingly arranged on two sides of the hanging beam, which are away from each other in the length direction, and are used for correspondingly installing new and old pitch bearings; the hanging seat is arranged between the two mounting parts, and is arranged on the hanging beam, so that the hanging hook of the crane drives the hanging beam to move when being connected with the hanging seat in a matching way; because the lifting hook of crane itself can rotate, dismantle and install when installing on the installation department in old pitch bearing follow radome inner hub, only need rotate the lifting hook, can be close to the one side that hub removed with new pitch bearing and install, compare in current scheme need the crane twice to hang the process of establishing the frock, the frock of this structure only need once hang and establish can realize the change of pitch bearing for the process of establishing of hanging of crane is optimized, crane work consuming time is short, crane consumes less oil, the cost of changing the pitch bearing has been reduced, the practicality of frock has been promoted effectively.
Description
Technical Field
The utility model relates to the technical field of maintenance devices of variable-pitch bearings, in particular to a tool for replacing a variable-pitch bearing.
Background
Wind power is used as clean renewable energy, and in recent years, the wind power is widely and widely valued worldwide, and the development pace is faster. The variable pitch bearing is used as a core component of the wind turbine, and is used for changing the angle of the blade (namely changing the pitch angle) together with the variable pitch driving device, so that the control of the output power of the blade and the safety of the blade are realized, and the demand of the variable pitch bearing is increased.
The pitch bearing is used as an oversized turntable bearing, and is composed of a ferrule, a rolling body, a sealing element, a retainer or a spacer block, wherein the inner ring of the pitch bearing is provided with a transmission gear, torque is transmitted through meshing with a pinion matched with a hub, and the outer ring of the bearing is fixed on a corresponding hub base mainly through a connecting bolt during installation of the pitch bearing. After the fan is put into operation again, the variable pitch bearing is easy to damage or needs to be replaced when other faults occur along with the increase of the operation period. The traditional replacement method of the variable pitch bearing comprises the following steps: and removing the blades, removing the guide cover, and replacing the damaged pitch bearing. Often use frock to fit and close crane and change oar bearing, the frock includes hanging beam, hanging seat and connecting seat, and the hanging seat is provided with three, sets up respectively in the left side of hanging beam, under and right side, and the connecting seat welds the up end at hanging beam, and the connecting seat is equipped with the screw hole that a plurality of circumference equipartitions set up. If the damaged pitch bearing needs to be replaced, the old pitch bearing needs to be replaced from the inner hub of the guide cover and then fixed with the connecting seat through the bolts, then the lifting hook of the crane is placed in the lifting hole of the lifting seat, then the crane moves the lifting hook until the lifting hook moves the lifting seat to the area for placing the old pitch bearing, then the bolts are removed, and the old pitch bearing can be placed, and at the moment, the connecting seat is empty; and then installing the new pitch bearing on the connecting seat through a bolt, placing the lifting hook into the lifting hole, moving the lifting hook through the crane until the lifting beam moves to the vicinity of the guide cover, and connecting the new pitch bearing with the hub.
However, when changing the oar bearing, because need to remove old oar bearing earlier and use the lifting hook of crane to remove it and lay after removing in placing the region, use the lifting hook of crane again with new oar bearing remove in placing the region to the kuppe region with wheel hub cooperation installation, the time consuming that needs the crane work is many when leading to frock cooperation crane to change the oar bearing to make the practicality of frock not enough.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is that in the prior art, as the existing tool is matched with the crane to replace the pitch bearing, the working stage of the crane is required to consume more time and more oil, and the practicability of the tool is insufficient.
To this end, the utility model provides a method comprising:
the hoisting beam is provided with a mounting part along two opposite sides of the length direction of the hoisting beam, and the mounting part is used for mounting the variable-pitch bearing;
the hanging seats are arranged on the hanging beam, and any hanging seat is arranged between the two mounting parts.
Optionally, the tool for replacing the pitch bearing,
the hanging seats are movably arranged on the hanging beam, and adjacent hanging seats are arranged at intervals.
Optionally, the tool for replacing the pitch bearing,
the hanging seat is provided with a first connecting part;
the hanging beam is provided with a first chute;
still include first drive assembly, it includes rack, gear, first driving piece and connecting piece, the rack is installed inside the hanging beam, the gear with the rack toothing, the drive end of first driving piece wear to establish behind the first spout in gear connection, the drive end of first driving piece is used for the drive gear rotates, the connecting piece has second connecting portion and third connecting portion, second connecting portion with first connecting portion are connected, third connecting portion with second connecting portion integrated into one piece, and third connecting portion with the internal face sliding connection of hanging beam.
Optionally, the tool for replacing the pitch bearing,
the hanging seat is fixedly arranged on the hanging beam.
Optionally, the tool for replacing the pitch bearing,
the installation part is provided with an installation position, and the installation position is arranged in parallel with the upper end face of the hanging beam and is used for being abutted against a wall surface with smaller radial size in the variable-pitch bearing.
Optionally, the tool for replacing the pitch bearing,
the second driving assembly is provided with a second driving piece;
the installation department still has first baffle and second baffle, first baffle fixed mounting is in the one end of hanging beam, the second baffle with the drive end of second driving piece is connected to be close to or keep away from under the drive of the drive end of second driving piece first baffle is in order to press from both sides tightly or relax the pitch bearing.
The technical scheme provided by the utility model has the following advantages:
the utility model provides a tool for replacing a pitch bearing, which comprises a hanging beam and a plurality of hanging seats. The two sides of the hanging beam, which are opposite along the length direction, are respectively provided with a mounting part, and the mounting parts are used for mounting the variable-pitch bearing; the hanging seats are all installed on the hanging beam, and any hanging seat is arranged between the two installation parts.
According to the tool for replacing the variable pitch bearing, the two installation parts are correspondingly arranged on the two sides, which are opposite in the length direction of the hanging beam, of the tool for replacing the variable pitch bearing, and are used for correspondingly installing the new variable pitch bearing and the old variable pitch bearing; the hanging seat is arranged between the two mounting parts, and is mounted on the hanging beam, so that the hanging hook of the crane can drive the hanging beam to move when being connected with the hanging seat in a matching way; because the lifting hook of crane itself can rotate, when old pitch bearing is dismantled from the inner hub of radome and is installed on the installation department like this, only need rotate the lifting hook, can be close to the one side that wheel hub with new pitch bearing and remove and install work, compare in current scheme need the crane twice to hang the process of establishing the frock, the frock of this structure only need once hang and establish can realize the change of pitch bearing for the process of establishing of hanging of crane is optimized, and then makes crane work consuming time weak point, consume less oil, has reduced the cost of changing pitch bearing, has promoted the practicality of frock effectively.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a tooling for replacing a pitch bearing provided in the present utility model;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1;
FIG. 3 is a schematic view of a first drive assembly in the tooling for replacing a pitch bearing provided in the present utility model;
reference numerals illustrate:
1-hanging beams; 11-an installation part; 111-mounting position; 112-a first baffle; 113-a second baffle; 12 a first chute; 13-a second chute;
2-hanging seats;
31-racks; 32-gear; 33-a first driving member; 34-a connector; 341-a second connection; 342-third connection.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Example 1
The embodiment provides a tool for replacing a pitch bearing, which comprises a hanging beam 1 and a plurality of hanging seats 2 as shown in fig. 1 and 2. Wherein, the two sides of the hanging beam 1, which are far away along the length direction, are respectively provided with a mounting part 11, and the mounting parts 11 are used for mounting the variable-pitch bearing; the hanging bases 2 are all installed on the hanging beam 1, and any hanging base 2 is arranged between the two installation parts 11.
According to the tool for replacing the pitch bearing, the two installation parts 11 are correspondingly arranged on the two sides, deviating from each other in the length direction, of the hanging beam 1 and are used for correspondingly installing new and old pitch bearings; the hanging seat 2 is arranged between the two mounting parts 11, and the hanging seat 2 is mounted on the hanging beam 1, so that the hanging hook of the crane can drive the hanging beam 1 to move when being connected with the hanging seat 2 in a matching way; because the lifting hook of crane itself can rotate, when old pitch bearing is dismantled from the inner hub of radome and is installed on installation department 11 like this, only need rotate the lifting hook, can be with new pitch bearing be close to the one side removal of wheel hub and install work, compare in current scheme need the crane twice to hang the process of establishing the frock, the frock of this structure only need once hang and establish the change that can realize pitch bearing, make the process of establishing of crane obtain optimizing, simultaneously, in the in-process of changing pitch bearing, need not to demolish the kuppe, and then make crane work consuming time short, consume less oil, the cost of changing pitch bearing has been reduced, the practicality of frock has been promoted effectively.
It may be noted that, in order to facilitate the balance of the hanging beam 1 more convenient after the new and old pitch bearings are installed on the installation portion 11, the hanging seat 2 may be movably installed on the hanging beam 1, and the adjacent hanging seats 2 are arranged at intervals.
As one of the embodiments, the tool for replacing a pitch bearing provided in this embodiment, the suspension seat 2 has a first connection portion; the hanging beam 1 is provided with a first chute 12; as shown in fig. 1 to 3, the first driving assembly further includes a rack 31, a gear 32, a first driving member 33 and a connecting member 34, wherein the rack 31 is installed inside the hanging beam 1, the gear 32 is meshed with the rack 31, the driving end of the first driving member 33 penetrates through the first sliding groove and is connected with the gear 32, the driving end of the first driving member 33 is used for driving the gear 32 to rotate, the connecting member 34 is provided with a second connecting portion 341 and a third connecting portion 342, the second connecting portion 341 is connected with the first connecting portion, the third connecting portion 342 is integrally formed with the second connecting portion 341, and the third connecting portion 342 is slidably connected with the inner wall surface of the hanging beam 1.
Further, in this embodiment, the center of the first connection portion of the hanging seat 2 is a bolt hole, the second connection portion 341 is a through hole, at this time, the first connection portion and the second connection portion 341 are coaxially disposed, and are in threaded connection with the first connection portion after penetrating the second connection portion 341 with bolts, so as to detachably mount the hanging seat 2 on the hanging beam, at this time, if the position of the hanging seat 2 needs to be changed, only the bolts need to be unscrewed, then the hanging seat needs to be moved to the required position, and then the hanging seat needs to be fastened. In this embodiment, since the bolt is threaded with the first connecting portion of the hanger 2 after passing through the second connecting portion 341, and the position of the hanger needs to be adjusted, the plane of the first mounting position of the hanger beam 1 should be provided with the second sliding groove 13, so that the bolt can move in the second sliding groove 13.
Further, in this embodiment, since the second connecting portion 341 and the third connecting portion 342 are integrally formed and are L-shaped after being connected, and the longer portion is parallel to the first mounting position 111, the third connecting portion 3 is a shorter portion, and at this time, a first sliding groove may be formed at a side wall surface of the hanging beam, which is perpendicular to the first mounting position 111, and the third connecting portion 3 is slidably disposed in the first sliding groove through a bolt and a sliding block nut.
In other alternative embodiments, the first driving assembly may be replaced by a pneumatic or hydraulic driving manner, and only the driving end of the driving member and the hanging seat 2 need to be fixed at this time, and meanwhile, the hanging beam may be provided with a first sliding groove, and the hanging seat 2 slides in the first sliding groove, so as to realize adjustment of the position of the hanging seat 2.
It may be noted that, the tooling for replacing the pitch bearing provided in this embodiment may also fixedly mount the hanging seat 2 on the hanging beam 1. For example, when the hanging beam is produced, a plurality of mounting holes arranged in a matrix are formed in the upper end face of the hanging beam in advance, at this time, the hanging seat 2 comprises a body portion and a hanging hole portion, the hanging hole and the body portion are arranged in a layered manner along the height direction and are connected, the body portion is detachably mounted inside the hanging beam, and the hanging hole of the hanging seat 2 extends from the mounting hole to the outside of the hanging beam for hanging by a hanging hook of a crane.
As shown in fig. 1 and 2, the tool for replacing a pitch bearing provided in this embodiment has a mounting portion 11 having a mounting position 111, where the mounting position 111 is disposed parallel to an upper end surface of a hanging beam 1 and is used for abutting against a wall surface with a smaller radial dimension in the pitch bearing.
It can be stated that the tooling for replacing the pitch bearing provided by the embodiment further comprises a second driving assembly. The second driving component is provided with a second driving piece; the installation part 11 is also provided with a first baffle plate 112 and a second baffle plate 113, the first baffle plate 112 is fixedly installed at one end of the hanging beam 1, the second baffle plate 113 is connected with the driving end of the second driving piece, and the second baffle plate 113 is driven by the driving end of the second driving piece to be close to or far away from the first baffle plate 112 so as to clamp or loosen the pitch bearing.
When the tool for replacing the pitch bearing is replaced, the new pitch bearing is placed in the installation part 11 arranged on one side of the hanging beam 1, the second baffle 113 moves close to the first baffle 112 to clamp the new pitch bearing, and then two lifting hooks of a crane are respectively hooked with the two hanging seats 2 arranged on the tool, so that equipment damage caused by sideslip of the new pitch bearing in the moving process of the hanging beam 1 is avoided; then moving the lifting beam 1 and moving the other empty mounting part 11 of the lifting beam 1 to the side close to the hub, separating the old pitch bearing from the hub by about 400mm by using four guide rods, then placing the old pitch bearing in the other mounting part 11 and moving the other second baffle 113 to the side close to the other first baffle 112 to clamp the old pitch bearing; then, the crane is slowly moved, and the old variable-pitch bearing is taken out; then, rotating a lifting hook of the crane to realize 180-degree rotation of the tool; moving the crane to enable the new pitch bearing to be in butt joint with the hub, and installing the new pitch bearing and the hub in a matched manner through bolts; and finally, the crane moving lifting hook moves the tool with the old pitch bearing to an area for placing the old pitch bearing, places the old pitch bearing and completes the work of replacing the pitch bearing.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (6)
1. A frock for changing pitch bearing, characterized in that includes:
the device comprises a hanging beam (1), wherein two opposite sides of the hanging beam along the length direction are respectively provided with an installation part (11), and the installation parts (11) are used for installing a variable-pitch bearing;
the lifting device comprises a plurality of lifting seats (2), wherein the lifting seats (2) are arranged on a lifting beam (1), and any lifting seat (2) is arranged between two mounting parts (11).
2. The tooling for replacing a pitch bearing according to claim 1, wherein,
the hanging seats (2) are movably arranged on the hanging beam (1), and the adjacent hanging seats (2) are arranged at intervals.
3. The tooling for replacing a pitch bearing according to claim 2, wherein,
the hanging seat (2) is provided with a first connecting part;
the hanging beam (1) is provided with a first chute (12);
still include first drive assembly, it includes rack (31), gear (32), first driving piece (33) and connecting piece (34), rack (31) are installed inside hanging beam (1), gear (32) with rack (31) meshing, behind first spout (12) are worn to establish to the drive end of first driving piece (33) in gear (32) are connected, the drive end of first driving piece (33) is used for the drive gear (32) rotate, connecting piece (34) have second connecting portion (341) and third connecting portion (342), second connecting portion (341) with first connecting portion are connected, third connecting portion (342) with second connecting portion (341) integrated into one piece, and third connecting portion (342) with the internal face sliding connection of hanging beam (1).
4. The tooling for replacing a pitch bearing according to claim 1, wherein,
the hanging seat (2) is fixedly arranged on the hanging beam (1).
5. The tooling for replacing a pitch bearing according to any one of claims 1-4,
the installation part (11) is provided with an installation position (111), and the installation position (111) is arranged in parallel with the upper end surface of the hanging beam (1) and is used for being abutted with a wall surface with smaller radial size in the variable-pitch bearing.
6. The tooling for replacing a pitch bearing of claim 5,
the second driving assembly is provided with a second driving piece;
the installation department (11) still has first baffle (112) and second baffle (113), first baffle (112) fixed mounting is in the one end of hanging beam (1), second baffle (113) with the drive end of second driving piece is connected to be close to or keep away from under the drive of the drive end of second driving piece first baffle (112) to press from both sides tight or loosen the pitch bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320146818.9U CN218913063U (en) | 2023-01-20 | 2023-01-20 | Tool for replacing variable-pitch bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320146818.9U CN218913063U (en) | 2023-01-20 | 2023-01-20 | Tool for replacing variable-pitch bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218913063U true CN218913063U (en) | 2023-04-25 |
Family
ID=86039595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320146818.9U Active CN218913063U (en) | 2023-01-20 | 2023-01-20 | Tool for replacing variable-pitch bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218913063U (en) |
-
2023
- 2023-01-20 CN CN202320146818.9U patent/CN218913063U/en active Active
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