CN112706124A - Bolt taking-out device for broken bolt of variable-pitch slewing bearing of megawatt wind generating set - Google Patents
Bolt taking-out device for broken bolt of variable-pitch slewing bearing of megawatt wind generating set Download PDFInfo
- Publication number
- CN112706124A CN112706124A CN202011527575.0A CN202011527575A CN112706124A CN 112706124 A CN112706124 A CN 112706124A CN 202011527575 A CN202011527575 A CN 202011527575A CN 112706124 A CN112706124 A CN 112706124A
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- Prior art keywords
- drill
- slewing bearing
- bolt
- variable
- broken
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Classifications
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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
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/18—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same withdrawing broken threaded parts or twist drills
Abstract
The invention relates to a device for taking out a broken bolt of a variable-pitch slewing bearing bolt of a megawatt wind generating set. The invention has fewer related parts, is convenient and fast to use and operate, reduces the complexity of the previous operation and improves the operation and maintenance work efficiency; the used electric tools are mature products, and have higher reliability and high efficiency; different tools are equipped according to different working conditions, so that the problem that broken bolts at any positions of the whole circle of the variable-pitch slewing bearing can be taken out can be solved, and the variable-pitch slewing bearing is applicable to multiple models and multiple working conditions and has a wide application range; the invention can complete the process of punching and taking out the broken bolt within 10-30 minutes; the invention can rapidly process broken wires and replace new bolts without removing the wind wheel, thereby greatly reducing the loss of the generated energy of the wind field.
Description
Technical Field
The invention relates to a bolt taking-out device for broken bolts of a variable-pitch slewing bearing of a megawatt wind generating set.
Background
At present, in the regular maintenance process of a wind power plant, a connecting bolt of a variable pitch slewing bearing of a wind generating set is taken out in a failure and fracture mode, which is an inevitable operation.
The wind generating set user often can come to take out the fracture bolt through professional institution, because professional institution needs the site survey to estimate the rear ability and can make the scheme before taking out the fracture bolt to cause wind generating set to be in the shutdown state for a long time, long-time shutdown probably can cause the loss of wind-powered electricity generation field whole generated energy.
And the failure and fracture bolt can not be replaced for a long time, and the fatigue of the peripheral connecting bolt can be accelerated, so that the design service life of the bolt is shortened.
The existing operation method has long time period, high taking-out cost and great potential safety hazard. Therefore, a device which is fast and convenient needs to be designed to make up for the existing defects so as to improve the operation and maintenance working efficiency of the wind power plant and the like.
Disclosure of Invention
The invention aims to provide a bolt taking-out device for broken bolts of a variable-pitch slewing bearing of a megawatt wind generating set, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a megawatt level wind generating set becomes oar slewing bearing bolt fracture bolt remove device, includes wheel hub, blade and connects the change oar slewing bearing between wheel hub and blade, be equipped with disconnected silk in the wheel hub, the position that just corresponds with disconnected silk in the wheel hub is equipped with the through-hole, it has the uide bushing to run through in the through-hole, it has the subassembly that punches to run through in the uide bushing, still include the drive subassembly that punches to the disconnected silk power unit that punches.
Preferably, the power mechanism is a magnetic drill, a pistol drill or a right-angle drill.
Preferably, when the power mechanism is a magnetic seat drill, the punching assembly comprises an extension bar and a drill bit, the drill bit is connected to one end of the extension bar, the extension bar and the drill bit move in the guide sleeve in a telescopic mode, and the magnetic seat drill clamps one end of the extension bar and drives the extension bar to move in the guide sleeve in a telescopic mode and rotate to punch the broken wire.
Preferably, the variable-pitch slewing bearing further comprises a magnetic seat drill backing plate fixed on the flange surface of the variable-pitch slewing bearing, and special nuts are fixed at two ends of the magnetic seat drill backing plate.
Preferably, when power unit bores for the pistol, the subassembly that punches includes extension bar and drill bit, the one end at the extension bar is connected to the drill bit, extension bar and drill bit are followed flexible removal in the uide bushing, be connected with the corner ware between pistol drill and the extension bar.
Preferably, the variable-pitch slewing bearing further comprises a pressure plate fixed on a flange surface of the variable-pitch slewing bearing, and common nuts are fixed at two ends of the pressure plate.
Preferably, when power unit is the quarter drill, the subassembly that punches includes extension bar and drill bit, the one end at the extension bar is connected to the drill bit, extension bar and drill bit are followed flexible removal in the uide bushing, the quarter drill is connected with the extension bar and drives the drill bit along flexible and rotation realization is punched to the broken silk in the uide bushing.
Compared with the prior art, the invention has the beneficial effects that: the invention has few related parts, simple and convenient use and operation, reduces the complexity of the previous operation and improves the operation and maintenance work efficiency;
the electric tools used by the invention are mature products, and have higher reliability and high efficiency;
the invention is provided with different tools according to different working conditions, can meet the requirement of taking out broken bolts at any position of the whole circle of the variable-pitch slewing bearing, is suitable for multiple models and multiple working conditions, and has wide application range;
the scheme of the invention can complete the punching and taking-out process of the broken bolt within 10-30 minutes;
the invention can rapidly process broken wires and replace new bolts without removing the wind wheel, thereby greatly reducing the loss of the generated energy of the wind field.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of a bolt fracture taking-out device for a pitch slewing bearing bolt of a megawatt wind generating set according to the invention;
FIG. 2 is an exploded view of an embodiment 1 of a bolt fracture removal device for a pitch slewing bearing bolt of a megawatt wind generating set according to the invention;
FIG. 3 is a schematic structural diagram of an embodiment 2 of a bolt fracture removal device for a pitch slewing bearing of a megawatt wind generating set according to the invention;
FIG. 4 is an exploded view of an embodiment 2 of a bolt fracture removal device for a pitch slewing bearing bolt of a megawatt wind generating set according to the invention;
FIG. 5 is a schematic structural diagram of an embodiment 3 of a bolt fracture removal device for a pitch slewing bearing bolt of a megawatt wind generating set according to the invention;
fig. 6 is an exploded view of an embodiment 3 of a bolt fracture removal device for a pitch slewing bearing bolt of a megawatt wind generating set according to the invention.
In the figure: 1. a variable-pitch slewing bearing; 2. a through hole; 3. a guide sleeve; 4. a punching assembly; 401. lengthening a rod; 402. a drill bit; 5. a power mechanism; 501. a magnetic drill; 502. a pistol drill; 503. a right-angle drill; 6. a magnetic drill base plate; 7. an angle turning device; 8. pressing a plate; 9. specially manufacturing a nut; 10. a hub; 11. a blade; 12. and (5) breaking the filaments.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 2, in the embodiment of the invention, a device for taking out a broken bolt of a pitch-variable slewing bearing of a megawatt wind generating set includes a hub 10, the pitch-variable slewing bearing 1, a blade 11 and the pitch-variable slewing bearing 1 connected between the hub 10 and the blade 11, a broken wire 12 is arranged in the hub 10, a through hole 2 is arranged in the hub 10 and in a position corresponding to the broken wire 12, a guide sleeve 3 penetrates through the through hole 2, a punching assembly 4 penetrates through the guide sleeve 3, and a power mechanism 5 for driving the punching assembly 4 to punch the broken wire 12 is further included.
In this embodiment, the power mechanism 5 is a magnetic drill 501, a pistol drill 502, or a right-angle drill 503.
In this embodiment, when the power mechanism 5 is a magnetic drill 501, the punching assembly 4 includes an extension bar 401 and a drill 402, the drill 402 is connected to one end of the extension bar 401, the extension bar 401 and the drill 402 move along the guide sleeve 3 in a telescopic manner, and the magnetic drill 501 clamps one end of the extension bar 401 and drives the extension bar 401 to move along the guide sleeve 3 in a telescopic manner and rotate to punch the broken wire 12.
In the embodiment, the variable pitch slewing bearing further comprises a magnetic drill base plate 6 fixed on the flange surface of the variable pitch slewing bearing 1, and special nuts 9 are fixed at two ends of the magnetic drill base plate 6.
In this embodiment, the drill 402 is a milling cutter or a twist drill.
When the screw breaking device is used, the position space of the screw breaking 12 is large, a magnetic drill is used, firstly, a magnetic drill base plate is fixed on the flange face of the variable-pitch slewing bearing, specially-made nuts are fixed at two ends of the magnetic drill base plate, (the original nuts are not required to be removed), then, a guide sleeve is placed in a through hole, when the screw breaking face is uneven and cannot be directly drilled through a twist drill, the screw breaking face is slightly milled through a milling cutter, then, the twist drill is used for drilling, and finally, a screw taking device is used for taking out broken bolts.
Example 2
As shown in fig. 3-4, this embodiment is different from embodiment 1 in that when the power mechanism 5 is a pistol drill 502, the hole punching assembly 4 includes an extension rod 401 and a drill 402, the drill 402 is connected to one end of the extension rod 401, the extension rod 401 and the drill 402 move in a telescopic manner along the guide sleeve 3, and a corner device 7 is connected between the pistol drill 502 and the extension rod 401.
In the embodiment, the variable pitch slewing bearing further comprises a pressure plate 8 fixed on the flange surface of the variable pitch slewing bearing 1, and common nuts are fixed at two ends of the pressure plate 8.
During the use, under the condition of space restriction, adopt pistol drill cooperation turning ware to use in combination, at first put into the through-hole with the uide bushing, when disconnected silk face unevenness can't directly use the fluted drill drilling, can mill the disconnected silk face slightly with milling cutter earlier, then reuse fluted drill drilling, fasten clamp plate both ends nut when punching, make the clamp plate receive decurrent pressure. And finally, taking out the broken bolt by using a wire taking device.
Example 3
As shown in fig. 5-6, the present embodiment is different from embodiment 2 in that when the power mechanism 5 is a right-angle drill 503, the hole drilling assembly 4 includes an extension rod 401 and a drill 402, the drill 402 is connected to one end of the extension rod 401, the extension rod 401 and the drill 402 move along the guide sleeve 3 in a telescopic manner, and the right-angle drill 503 is connected to the extension rod 401 and drives the drill 402 to extend and rotate along the guide sleeve 3 in a telescopic manner to drill a broken wire.
During the use, under the condition of space restriction, adopt the right angle to bore, at first put into the through-hole with the uide bushing, when disconnected silk face unevenness can't directly use the fluted drill drilling, can mill the disconnected silk face slightly with milling cutter earlier and tie, then reuse fluted drill drilling, fasten clamp plate both ends nut when punching, make the clamp plate receive decurrent pressure. And finally, taking out the broken bolt by using a wire taking device.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a megawatt level wind generating set becomes oar slewing bearing bolt fracture bolt remove device, includes wheel hub, blade and connects the change oar slewing bearing between wheel hub and blade, be equipped with disconnected silk in the wheel hub, its characterized in that, the position that just corresponds with disconnected silk in the wheel hub is equipped with the through-hole, it has the uide bushing to run through in the through-hole, it has the subassembly that punches to run through in the uide bushing, still include the drive subassembly that punches to the disconnected silk power unit that punches.
2. The device for taking out broken bolts of pitch-variable slewing bearing bolts of megawatt wind generating sets as claimed in claim 1, wherein the power mechanism is a magnetic drill, a pistol drill or a right-angle drill.
3. The device for taking out a bolt broken through a variable-pitch slewing bearing of a megawatt wind generating set according to claim 1, wherein when the power mechanism is a magnetic drill, the punching assembly comprises an extension rod and a drill bit, the drill bit is connected to one end of the extension rod, the extension rod and the drill bit move telescopically along the guide sleeve, and the magnetic drill bit tightly clamps one end of the extension rod and drives the extension rod to move telescopically and rotate along the guide sleeve to punch the broken wire.
4. The device for taking out the broken bolt of the pitch-variable slewing bearing of the megawatt wind generating set according to claim 3, further comprising a magnetic drill base plate fixed on a flange surface of the pitch-variable slewing bearing, wherein special nuts are fixed at two ends of the magnetic drill base plate.
5. The device for removing broken bolts of pitch-variable slewing bearing bolts of megawatt wind generating sets as claimed in claim 1, wherein when said power mechanism is a pistol drill, the punching assembly comprises an extension rod and a drill bit, said drill bit is connected to one end of the extension rod, said extension rod and drill bit move telescopically along said guide sleeve, and a corner device is connected between said pistol drill and the extension rod.
6. The device for taking out the broken bolt of the pitch-variable slewing bearing of the megawatt wind generating set according to claim 5, further comprising a pressure plate fixed on a flange surface of the pitch-variable slewing bearing, wherein common nuts are fixed at two ends of the pressure plate.
7. The device for removing the broken bolt of the pitch-variable slewing bearing bolt of the megawatt wind generating set according to claim 1, wherein when the power mechanism is a pilot drill, the punching assembly comprises an extension rod and a drill bit, the drill bit is connected to one end of the extension rod, the extension rod and the drill bit move telescopically along the guide sleeve, and the pilot drill is connected with the extension rod and drives the drill bit to telescope and rotate along the guide sleeve to punch the broken wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527575.0A CN112706124A (en) | 2020-12-22 | 2020-12-22 | Bolt taking-out device for broken bolt of variable-pitch slewing bearing of megawatt wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527575.0A CN112706124A (en) | 2020-12-22 | 2020-12-22 | Bolt taking-out device for broken bolt of variable-pitch slewing bearing of megawatt wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112706124A true CN112706124A (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011527575.0A Pending CN112706124A (en) | 2020-12-22 | 2020-12-22 | Bolt taking-out device for broken bolt of variable-pitch slewing bearing of megawatt wind generating set |
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| CN (1) | CN112706124A (en) |
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Application publication date: 20210427 |
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