CN111531503A - Disassembling tool and disassembling method for shaft end slip ring assembly during maintenance of wind driven generator - Google Patents
Disassembling tool and disassembling method for shaft end slip ring assembly during maintenance of wind driven generator Download PDFInfo
- Publication number
- CN111531503A CN111531503A CN202010438314.5A CN202010438314A CN111531503A CN 111531503 A CN111531503 A CN 111531503A CN 202010438314 A CN202010438314 A CN 202010438314A CN 111531503 A CN111531503 A CN 111531503A
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- output shaft
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000012423 maintenance Methods 0.000 title claims abstract description 11
- 238000005299 abrasion Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 125000003003 spiro group Chemical group 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
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a disassembling tool and a disassembling method for a shaft end slip ring assembly during maintenance of a wind driven generator, and solves the problem of how to stably and safely disassemble and assemble the slip ring assembly on the operation site of the wind driven generator. The shaft end side face of an output shaft of the wind driven generator is fixedly provided with a lead screw inner side end rotary supporting frame, a disc-shaped lead screw nut is arranged on a lead screw, a pulling bolt is connected between an excircle of the disc-shaped lead screw nut and a process threaded hole on the side face of the outer end of a shaft sleeve of a slip ring assembly, the outer end of the lead screw is connected with an electric wrench through a connecting sleeve, the disc-shaped lead screw nut is rotated in situ through the lead screw, the disc-shaped lead screw nut moves along the direction of the central axis of the lead screw, the disc-shaped lead screw nut overcomes the interference fit force between the shaft end and the shaft sleeve through the pulling. The occupied space is small, and the field implementation is easy.
Description
Technical Field
The invention relates to a tool for disassembling a slip ring assembly installed on a shaft end of a wind driven generator in operation, in particular to a tool and a method for disassembling a slip ring assembly at the shaft end during maintenance of the wind driven generator.
Background
A slip ring assembly of a wind driven generator, which can be also called as a collecting ring assembly, is composed of a shaft sleeve, an insulating cylinder and a slip ring (collecting ring), wherein the shaft sleeve is sleeved on the shaft end of an output shaft of the wind driven generator, an interference fit section is arranged between the shaft sleeve and the shaft end, a manufacturer installs the shaft sleeve on the shaft end in a thermal expansion mode, the shaft sleeve is adhered with an insulating sleeve in an adhesion mode, the insulating sleeve is sleeved with three collecting rings in a thermal mode, the distance between the three collecting rings has certain requirements so as to realize reliable electrical insulation, six process threaded holes are arranged on the side surface of the outer end of the shaft sleeve at equal intervals in a radian mode, and the process threaded holes are used for hoisting and installation in the; after the wind driven generator is put into operation on site for a period of time, in the inspection process, a motor end cover needs to be opened, and devices inside the motor are overhauled and maintained, but a slip ring assembly is installed on the outer side of the motor end cover, the slip ring assembly needs to be disassembled firstly when the motor end cover needs to be opened, an insulating sleeve with a collecting ring is bonded on a shaft sleeve, the shaft sleeve is sleeved on the shaft end of the motor through an interference fit section, how to overcome the fastening force of the interference fit section of the shaft sleeve and the shaft end, and the insulating sleeve and the collecting ring on the shaft sleeve can not be displaced and damaged in the disassembly process, so that the problem is faced on site; in addition, the field generator is arranged at high altitude, the space position is limited, the existing large-scale hydraulic equipment cannot be used for dismounting, and how to stably and safely dismount and mount the slip ring assembly is also a problem which needs to be solved urgently on site.
Disclosure of Invention
The invention provides a disassembling tool and a disassembling method for a shaft end slip ring assembly during maintenance of a wind driven generator, and solves the technical problem of how to stably and safely disassemble and assemble the slip ring assembly on the operation site of the wind driven generator.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is: the side surface of the shaft end of an output shaft of the wind driven generator is fixedly provided with a lead screw inner side end rotating support frame, a disc-shaped lead screw nut is arranged on a lead screw, a pulling bolt is connected between the excircle of the disc-shaped lead screw nut and a process threaded hole on the side surface of the outer end of a shaft sleeve of a slip ring assembly, the outer side end of the lead screw is connected with an electric wrench through a connecting sleeve, the disc-shaped lead screw nut moves along the central axis direction of the lead screw through in-situ rotation of the lead screw, the disc-shaped lead screw nut overcomes the interference fit force between the shaft end and the shaft sleeve through the pulling bolt, so that the shaft; after the motor is overhauled, the electric wrench is rotated reversely, the disc-shaped lead screw nut overcomes the interference fit force of the interference fit section between the shaft end and the shaft sleeve through pulling the bolt, and the slip ring assembly is pushed back to be installed at the shaft end; the stress of the slip ring component is balanced and stable in disassembly and reassembly, so that the slip ring component is prevented from being damaged; in addition, the tooling equipment occupies small space, is simple and convenient to operate and is particularly suitable for the operation site of the wind driven generator.
A disassembly tool for a shaft end slip ring assembly during maintenance of a wind driven generator comprises the wind driven generator, wherein a shaft sleeve is arranged on an output shaft end of the wind driven generator, the shaft sleeve is in interference fit with the output shaft end through an inner interference fit step and an outer interference fit step which are arranged on the output shaft end, six threaded process holes are arranged on the side surface of the outer end of the shaft sleeve at equal intervals in an radian manner, a cylindrical box body is buckled on the outer side surface of the output shaft end and is fixedly connected to the outer side surface of the output shaft end through a box body fixing bolt, a through hole is formed in a box top plate of the cylindrical box body, the top end of a lead screw penetrates through the through hole from right to left and then is fixedly connected with a lead screw anti-falling cylinder, a gap is formed between the left side surface of the lead screw, the lead screw that passes through the through-hole right side at the lead screw top is fixed with cylindric spacing step on, is provided with screw nut on the lead screw on cylindric spacing step right side, is provided with six on screw nut's the excircle equidistance radian and draws the bolt to pass the through-hole, draws the bolt to pass and draws and draw the bolt to pass and pass the through-hole after together with threaded fabrication hole spiro union, draw and be provided with lock nut on drawing the bolt, have the sleeve at the trailing end connection of lead screw, be connected with electronic wrench on the sleeve.
An inner side anti-abrasion gasket is arranged between the right side surface of the lead screw anti-falling cylinder and the inner side surface of the box top plate of the cylindrical box body, and an outer side anti-abrasion gasket is arranged between the outer side surface of the box top plate and the left side surface of the cylindrical limiting step; a box body fixing bolt is arranged on the cylindrical box body and penetrates through the through hole, and the box body fixing bolt penetrates through the box body fixing bolt and then penetrates through the through hole to be fixedly connected with the outer side face of the shaft end of the output shaft; an insulating sleeve is arranged on the shaft sleeve, and a collecting ring is arranged on the insulating sleeve.
A method for disassembling a tool for disassembling a shaft end slip ring assembly during maintenance of a wind driven generator comprises the following steps:
firstly, the top end of a lead screw penetrates through a through hole from right to left and then is fixedly welded with a lead screw anti-falling cylinder, an inner side anti-abrasion gasket is arranged between the right side surface of the lead screw anti-falling cylinder and the inner side surface of a box top plate of a cylindrical box body, and an outer side anti-abrasion gasket is arranged between the outer side surface of the box top plate and the left side surface of a cylindrical limiting step;
secondly, a box body fixing bolt penetrates through the box body fixing bolt and penetrates through the through hole to be fixedly connected with the outer side face of the shaft end of the output shaft, so that the central axis of the cylindrical box body is superposed with the central axis of the output shaft of the wind driven generator; when the left side surface of the cylindrical limiting step is abutted with the outer side surface of the top plate of the cylindrical box body, a gap is reserved between the left side surface of the lead screw anti-falling cylinder and the outer side surface of the shaft end of the output shaft;
thirdly, penetrating a pulling bolt through the through hole, then screwing the pulling bolt with the threaded process hole, locking the pulling bolt through a locking nut, and after the six pulling bolts are connected and locked, superposing the central axis of the lead screw and the central axis of the output shaft of the wind driven generator;
fourthly, connecting a sleeve to the tail end of the screw rod, and connecting an electric wrench to the sleeve;
the fifth step, start electronic wrench, electronic wrench makes the lead screw clockwise rotation through the sleeve, at the rotatory in-process of lead screw, the left surface of cylindric spacing step is through outside abrasionproof loss gasket top joint on the box roof lateral surface of cylindrical box body, along with the rotation of lead screw, lead screw nut horizontal migration right, during the lead screw horizontal migration right, draw the bolt through six and draw the axle sleeve to draw right, draw right and draw the power and overcome the inboard interference fit step that sets up on the output shaft axle end and the interference fit power between outside interference fit step and the output shaft axle end, detach the slip ring subassembly from the output shaft axle end down.
The tool has the advantages of simple structure, small occupied space and easy field implementation, overcomes interference fit by stressing the side surface of the shaft sleeve in the process of disassembling the slip ring assembly, ensures that the whole slip ring assembly is stressed uniformly, and protects the insulating sleeve and the current collecting ring arranged on the shaft sleeve from being damaged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the output shaft end 2 of the present invention;
fig. 3 is a schematic structural view of the cylindrical case 7 of the present invention;
fig. 4 is a schematic structural view of the cylindrical case 7 of the present invention in a right-hand direction;
FIG. 5 is a schematic view of the structure of the lead screw 15 of the present invention;
FIG. 6 is a schematic structural view of the lead screw nut 16 of the present invention;
fig. 7 is a schematic view of the lead screw nut 16 of the present invention in a right view.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a disassembly tool for a shaft end slip ring assembly during maintenance of a wind driven generator comprises a wind driven generator 1, a shaft sleeve 3 is arranged on an output shaft end 2 of the wind driven generator 1, the shaft sleeve 3 is in interference fit with the output shaft end 2 through an inner interference fit step 20 and an outer interference fit step 21 which are arranged on the output shaft end 2, six threaded process holes 6 are arranged on the side surface of the outer end of the shaft sleeve 3 at equal intervals in an arc manner, a cylindrical box body 7 is buckled on the outer side surface of the output shaft end 2, the cylindrical box body 7 is fixedly connected to the outer side surface of the output shaft end 2 through a box body fixing bolt 8, a through hole 9 is arranged at the top end of a lead screw on a box top plate of the cylindrical box body 7, the top end of the lead screw 15 penetrates through the through hole 9 from right to left and then is fixedly connected with a lead screw anti-off cylinder 11, a, the lead screw 15 which penetrates through the right side of the through hole 9 at the top end of the lead screw is fixedly provided with a cylindrical limiting step 14, the lead screw 15 which penetrates through the right side of the cylindrical limiting step 14 is provided with a lead screw nut 16, six pulling bolts which penetrate through the through hole 23 are arranged on the excircle of the lead screw nut 16 at equal intervals in an arc shape, the pulling bolts 17 penetrate through the pulling bolts which penetrate through the through hole 23 and then are screwed with the threaded fabrication hole 6, the pulling bolts 17 are provided with locking nuts 18, the tail end of the lead screw 15 is connected with a sleeve 19, and the sleeve 19 is connected with an electric.
An inner side anti-abrasion gasket 10 is arranged between the right side surface of the lead screw anti-falling cylinder 11 and the inner side surface of the box top plate of the cylindrical box body 7, and an outer side anti-abrasion gasket 13 is arranged between the outer side surface of the box top plate and the left side surface of the cylindrical limiting step 14; a box body fixing bolt is arranged on the cylindrical box body 7 and penetrates through the through hole 22, and the box body fixing bolt 8 penetrates through the box body fixing bolt and penetrates through the through hole 22 to be fixedly connected with the outer side face of the shaft end 2 of the output shaft; an insulating sleeve 4 is arranged on the shaft sleeve 3, and a collecting ring 5 is arranged on the insulating sleeve 4.
A method for disassembling a tool for disassembling a shaft end slip ring assembly during maintenance of a wind driven generator comprises the following steps:
firstly, the top end of a lead screw 15 penetrates through a through hole 9 from right to left and then is fixedly welded with a lead screw anti-disengaging cylinder 11, an inner side anti-abrasion gasket 10 is arranged between the right side surface of the lead screw anti-disengaging cylinder 11 and the inner side surface of a box top plate of a cylindrical box body 7, and an outer side anti-abrasion gasket 13 is arranged between the outer side surface of the box top plate and the left side surface of a cylindrical limiting step 14; when the screw rod 15 rotates in place, the gasket is used as a consumption part, so that the abrasion of the screw rod anti-falling cylinder 11 and the cylindrical box body 7 is reduced;
secondly, a box body fixing bolt 8 penetrates through a box body fixing bolt and penetrates through a through hole 22 to be fixedly connected with the outer side face of the output shaft end 2, so that the central axis of the cylindrical box body 7 is superposed with the central axis of the output shaft of the wind driven generator 1; when the left side surface of the cylindrical limiting step 14 is abutted with the outer side surface of the top plate of the cylindrical box body 7, a gap 12 is reserved between the left side surface of the lead screw anti-disengaging cylinder 11 and the outer side surface of the output shaft end 2, so that when the lead screw 15 rotates, the lead screw anti-disengaging cylinder 11 and the outer side surface of the output shaft end 2 cannot generate friction;
thirdly, the pulling bolt 17 penetrates through the pulling bolt, penetrates through the through hole 23, is screwed with the threaded technical hole 6, the pulling bolt 17 is locked through the locking nut 18, and after the six pulling bolts 17 are connected and locked, the central axis of the lead screw 15 is superposed with the central axis of the output shaft of the wind driven generator 1;
fourthly, connecting a sleeve 19 to the tail end of the screw rod 15, and connecting an electric wrench to the sleeve 19;
fifthly, starting the electric wrench, enabling the screw rod 15 to rotate clockwise through the sleeve 19 by the electric wrench, in the rotating process of the screw rod 15, jacking the left side face of the cylindrical limiting step 14 on the outer side face of the box top plate of the cylindrical box body 7 through the outer side anti-abrasion gasket 13, moving horizontally right along with the rotation of the screw rod 15 by the screw rod nut 16, pulling the shaft sleeve 3 rightwards by six pulling bolts 17 during the rightward horizontal movement of the screw rod 15, overcoming the interference fit force between the inner side interference fit step 20 and the outer side interference fit step 21 arranged on the output shaft end 2 and the output shaft end 2 by the rightward pulling force, and detaching the slip ring assembly from the output shaft end 2.
After the motor maintenance process is completed, the electric wrench is started, the lead screw 15 rotates anticlockwise, the lead screw nut 16 moves horizontally leftwards, the shaft sleeve 3 is pushed leftwards through the six pulling bolts 17 during the leftward horizontal movement of the lead screw 15, the pushing force overcomes the interference fit force between the inner side interference fit step 20 and the outer side interference fit step 21 arranged on the output shaft end 2 and the output shaft end 2, and the slip ring assembly is installed on the output shaft end 2 again.
Claims (3)
1. A disassembly tool for a shaft end slip ring assembly during maintenance of a wind driven generator comprises the wind driven generator (1), a shaft sleeve (3) is arranged on an output shaft end (2) of the wind driven generator (1), the shaft sleeve (3) is in interference fit with the output shaft end (2) through an inner interference fit step (20) and an outer interference fit step (21) arranged on the output shaft end (2), six threaded process holes (6) are arranged on the side surface of the outer end of the shaft sleeve (3) at equal intervals in an arc manner, and is characterized in that a cylindrical box body (7) is buckled on the outer side surface of the output shaft end (2), the cylindrical box body (7) is fixedly connected to the outer side surface of the output shaft end (2) through a box body fixing bolt (8), and a through hole (9) is arranged on a box top plate of the cylindrical box body (7), the top end of a lead screw (15) penetrates through the top end of the lead screw from right to left and then penetrates through a through hole (9) to be fixedly connected with a lead screw anti-disengaging cylinder (11), a gap (12) is formed between the left side surface of the lead screw anti-disengaging cylinder (11) and the outer side surface of an output shaft end (2), a cylindrical limiting step (14) is fixedly arranged on the lead screw (15) at the top end of the lead screw, which penetrates through the right side of the through hole (9), a lead screw nut (16) is arranged on the lead screw (15) at the right side of the cylindrical limiting step (14), six pulling bolts penetrating through the through holes (23) are arranged on the outer circle of the lead screw nut (16) at equal intervals in radian, the pulling bolts (17) penetrate through the through holes (23) and then are in threaded with a threaded process hole (6), a locking nut (18) is arranged, an electric wrench is connected to the sleeve (19).
2. The tool for disassembling the shaft end slip ring assembly during overhauling of the wind driven generator according to claim 1, wherein an inner anti-abrasion gasket (10) is arranged between the right side surface of the lead screw anti-disengaging cylinder (11) and the inner side surface of the box top plate of the cylindrical box body (7), and an outer anti-abrasion gasket (13) is arranged between the outer side surface of the box top plate and the left side surface of the cylindrical limiting step (14); a box body fixing bolt is arranged on the cylindrical box body (7) and penetrates through the through hole (22), and the box body fixing bolt (8) penetrates through the box body fixing bolt and penetrates through the through hole (22) to be fixedly connected with the outer side face of the shaft end (2) of the output shaft; an insulating sleeve (4) is arranged on the shaft sleeve (3), and a collecting ring (5) is arranged on the insulating sleeve (4).
3. The method for disassembling the tool for disassembling the shaft end slip ring assembly during the overhaul of the wind driven generator as claimed in claim 2, comprising the following steps:
firstly, the top end of a lead screw (15) penetrates through the top end of the lead screw from right to left and then penetrates through a through hole (9), and then is fixedly welded with a lead screw anti-disengaging cylinder (11), an inner side anti-abrasion gasket (10) is arranged between the right side surface of the lead screw anti-disengaging cylinder (11) and the inner side surface of a box top plate of a cylindrical box body (7), and an outer side anti-abrasion gasket (13) is arranged between the outer side surface of the box top plate and the left side surface of a cylindrical limiting step (14);
secondly, a box body fixing bolt (8) penetrates through the box body fixing bolt and penetrates through a through hole (22) to be fixedly connected with the outer side face of the output shaft end (2), so that the central axis of the cylindrical box body (7) is superposed with the central axis of the output shaft of the wind driven generator (1); when the left side surface of the cylindrical limiting step (14) is abutted with the outer side surface of the top plate of the cylindrical box body (7), a gap (12) is reserved between the left side surface of the lead screw anti-disengaging cylinder (11) and the outer side surface of the output shaft end (2);
thirdly, penetrating a pulling bolt (17) through the pulling bolt, penetrating the pulling bolt through a through hole (23), then screwing the pulling bolt (17) with the threaded fabrication hole (6), locking the pulling bolt (17) through a locking nut (18), and after the six pulling bolts (17) are connected and locked, overlapping the central axis of a lead screw (15) with the central axis of an output shaft of the wind driven generator (1);
fourthly, connecting a sleeve (19) at the tail end of the screw rod (15), and connecting an electric wrench on the sleeve (19);
fifthly, starting the electric wrench, enabling the screw rod (15) to rotate clockwise by the electric wrench through the sleeve (19), enabling the left side face of the cylindrical limiting step (14) to be connected to the outer side face of the box top plate of the cylindrical box body (7) in a jacking mode through the outer side anti-abrasion gasket (13) in the rotating process of the screw rod (15), enabling the screw rod nut (16) to move horizontally rightwards along with the rotation of the screw rod (15), enabling the screw rod (15) to move horizontally rightwards, drawing the shaft sleeve (3) rightwards through six drawing bolts (17), overcoming the interference fit force between the inner side interference fit step (20) and the outer side interference fit step (21) arranged on the output shaft end (2) and the output shaft end (2), and detaching the slip ring assembly from the output shaft end (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010438314.5A CN111531503A (en) | 2020-05-21 | 2020-05-21 | Disassembling tool and disassembling method for shaft end slip ring assembly during maintenance of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010438314.5A CN111531503A (en) | 2020-05-21 | 2020-05-21 | Disassembling tool and disassembling method for shaft end slip ring assembly during maintenance of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111531503A true CN111531503A (en) | 2020-08-14 |
Family
ID=71972188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010438314.5A Pending CN111531503A (en) | 2020-05-21 | 2020-05-21 | Disassembling tool and disassembling method for shaft end slip ring assembly during maintenance of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111531503A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014141588A1 (en) * | 2013-03-11 | 2014-09-18 | 株式会社デンソー | Blower, method for removing blower fan of said blower, and fan removal jig used for said method |
| CN205380615U (en) * | 2015-12-25 | 2016-07-13 | 神华集团有限责任公司 | Dismounting device |
| CN206575301U (en) * | 2017-03-22 | 2017-10-20 | 山西汾西重工有限责任公司 | Wind-driven generator slip ring provision for disengagement on tower |
| CN208961920U (en) * | 2018-11-08 | 2019-06-11 | 中节能（天祝）风力发电有限公司 | A kind of collector ring of generator simple-mounting-dismounting tool |
| CN212421132U (en) * | 2020-05-21 | 2021-01-29 | 中船重工电机科技股份有限公司 | Disassembling tool for shaft end slip ring assembly during maintenance of wind driven generator |
-
2020
- 2020-05-21 CN CN202010438314.5A patent/CN111531503A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014141588A1 (en) * | 2013-03-11 | 2014-09-18 | 株式会社デンソー | Blower, method for removing blower fan of said blower, and fan removal jig used for said method |
| CN205380615U (en) * | 2015-12-25 | 2016-07-13 | 神华集团有限责任公司 | Dismounting device |
| CN206575301U (en) * | 2017-03-22 | 2017-10-20 | 山西汾西重工有限责任公司 | Wind-driven generator slip ring provision for disengagement on tower |
| CN208961920U (en) * | 2018-11-08 | 2019-06-11 | 中节能（天祝）风力发电有限公司 | A kind of collector ring of generator simple-mounting-dismounting tool |
| CN212421132U (en) * | 2020-05-21 | 2021-01-29 | 中船重工电机科技股份有限公司 | Disassembling tool for shaft end slip ring assembly during maintenance of wind driven generator |
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Application publication date: 20200814 |
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