CN105020215A - Fixing device applied to traction motor with coupling in transportation process - Google Patents
Fixing device applied to traction motor with coupling in transportation process Download PDFInfo
- Publication number
- CN105020215A CN105020215A CN201510474858.6A CN201510474858A CN105020215A CN 105020215 A CN105020215 A CN 105020215A CN 201510474858 A CN201510474858 A CN 201510474858A CN 105020215 A CN105020215 A CN 105020215A
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- fixing rod
- fixed plate
- main body
- rotating shaft
- fixing device
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- 230000008878 coupling Effects 0.000 title claims abstract description 38
- 238000010168 coupling process Methods 0.000 title claims abstract description 38
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to a fixing device applied to a traction motor with a coupling in the transportation process to solve the problem of how to relieve the damage to a bearing in the transportation process. The fixing device comprises a fixing rod and a fixing plate fixedly connected to the fixing rod. The fixing rod is used for being fixedly connected to a rotating shaft of the traction motor. The fixing plate is used for being fixedly connected to a shell of the traction motor. The fixing plate and the fixing rod in the fixing plate do not rotate relatively, the fixing rod and the rotating shaft do not rotate relatively, and the fixing plate and the shell do not rotate relatively, and therefore the rotating shaft and the shell of the traction motor cannot move relatively, the stability of the rotating shaft in the shell of the traction motor is improved, and the damage to the bearing in the transportation process is relieved to a certain degree.
Description
Technical field
The present invention relates to traction electric machine technical field, be specifically related to a kind of fixing device of traction electric machine in transportation process being applied to band shaft coupling.
Background technique
Rail motor set just need when often running 600,000 kilometers to carry out senior maintenance.During maintenance, traction electric machine is removed from bogie, and is overhauled to traction electric machine producer by Freight Transport, as shown in Figure 1, in transportation process traction electric machine 1 rotating shaft 4 on shaft coupling 5.
Wherein, shaft coupling 5 generally adopts drum-shaped tooth type structure, belongs to rigid and flexibility coupling, is heavily about 20kg, have the misalignment of axe compensation abilitys such as radial direction, axis and angle.That is, this shaft coupling 5 can not only rotate relative to rotating shaft 4, but also has angular displacement, with reference to figure 2.
Wherein, the end bearing of traction electric machine driving end and non-transmision end is passed in rotating shaft 4, and in FIG, the bearing of traction electric machine driving end is deep groove ball bearing 2, and the bearing of traction electric machine 1 non-transmision end is roller bearing 3.In traction electric machine 1 transportation process, rotating shaft 4 is easily along with bearing rotates.
Wherein, bearing is accurate mechanical parts, has good running accuracy and dimensional accuracy.Bearing when overhauling in traction electric machine is non-ly must change part, and the bearing of problems such as finding do not have impression after cleaning on inspection, abrade, bite can continue to use.
Due to the self gravitation impact of relatively rotating between the bearing of traction electric machine and rotating shaft, relative displacement between rotating shaft and shaft coupling and shaft coupling, very large impact is caused on bearing.In fact, by finding three grades of maintenance of traction electric machine, why bearing needs a large amount of replacings, trace it to its cause and be: traction electric machine is in transportation process, non-countershaft, shaft coupling are fixed, thus result in bearing enclose roller surface and roller rolls face and all there is equidistant impression in various degree.Expensive due to bearing, does not arrive just a large amount of replacing in working life and causes great waste.
Summary of the invention
Technical problem to be solved by this invention how to alleviate the damage that transportation process middle (center) bearing is subject to.
For this purpose, the present invention proposes a kind of fixing device of traction electric machine in transportation process being applied to band shaft coupling.This device comprises: comprise fixing rod and the fixed plate being fixedly attached to described fixing rod;
Described fixing rod, for being fixedly attached to the rotating shaft of described traction electric machine;
Described fixed plate, for being fixedly attached to the housing of described traction electric machine.
Further, described fixing rod comprises fixing rod main body and is arranged on the joint of described fixing rod main body one end, and described fixing rod main body is fixedly attached to described rotating shaft by described joint.
Further, described joint comprises inserting pin;
Described inserting pin is coaxially fixedly connected with described fixing rod body, and suitable with the blind hole shape of described rotating shaft;
The end face that described inserting pin contacts with the blind via bottom of described rotating shaft is provided with the first screw thread, and the second screw thread of described first screw thread and described blind via bottom is suitable.
Further, described inserting pin and described fixing rod main body are structure as a whole.
Further, the cross section of described fixing rod main body is greater than the cross section of described inserting pin.
Further, described fixed plate offers the first fixed hole, described fixed plate is connected to described housing by described first fixed hole.
Further, described fixed plate is also for being fixedly attached to described shaft coupling.
Further, described fixed plate offers the second fixed hole, described fixed plate is connected to described shaft coupling by described second fixed hole.
Further, described fixed plate offers the 3rd fixed hole, described fixing rod main body is located in the 3rd fixed hole of described fixed plate;
Described 3rd fixed hole inwall offers keyway, described fixing rod main body is provided with retainingf key, described retainingf key is arranged along the axis of described fixing rod main body, and suitable with described retainingf key.
Further, described fixing rod main body is provided with bounding means, and described bounding means is used for spacing to described fixed plate.
Due between fixing rod and fixed plate without relative movement, without relative movement between fixing rod main body and rotating shaft, and without relative movement between fixed plate and housing, therefore be fixed by fixing rod and fixed plate between rotating shaft and the housing of traction electric machine, make cannot produce relative displacement between rotating shaft and traction electric machine housing, improve the stability of rotating shaft in traction electric machine housing, thus avoid rotating shaft to produce unbalanced pressure to bearing, alleviate the damage suffered by transportation process middle (center) bearing to a certain extent.
Accompanying drawing explanation
Can understanding the features and advantages of the present invention clearly by reference to accompanying drawing, accompanying drawing is schematic and should not be construed as and carry out any restriction to the present invention, in the accompanying drawings:
Fig. 1 shows the structural representation of the traction electric machine of band shaft coupling;
Fig. 2 shows the schematic diagram of shaft coupling relative to the rotating shaft generation angular displacement in traction electric machine;
Fig. 3 shows the structural representation according to fixed plate in fixing device of the present invention embodiment;
Fig. 4 shows the clamping relation schematic diagram according to another embodiment of fixing device of the present invention and traction electric machine shaft;
Fig. 5 shows the scheme of installation of fixing device of the present invention.
Drawing reference numeral illustrates:
1-traction electric machine; 2-deep groove ball bearing; 3-roller bearing; 4-rotating shaft; 41-blind hole; 42-second screw thread; 5-shaft coupling; Fixed hole on 51-shaft coupling; 6-fixed plate; The first portion of 61-fixed plate; 611-first fixed hole; The second portion of 62-fixed plate; 622-second fixed hole; 63-the 3rd fixed hole; 633-keyway; 7-fixing rod main body; 71-retainingf key; 8-joint; 81-first screw thread; 9-first bolt; 10-bounding means; Fixed hole on 11-traction electric machine housing.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Those skilled in the art of the present technique are appreciated that unless expressly stated, and singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording used in specification of the present invention " comprises " and refers to there is described feature, integer, step, operation, element and/or assembly, but does not get rid of and exist or add other features one or more, integer, step, operation, element, assembly and/or their group.
The invention provides a kind of fixing device of traction electric machine in transportation process being applied to band shaft coupling, as shown in Figure 3,4, this fixing device comprises: fixing rod and the fixed plate being fixedly attached to described fixing rod;
Described fixing rod, for being fixedly attached to the rotating shaft 4 of described traction electric machine;
Described fixed plate 6, for being fixedly attached to the housing of described traction electric machine 1.
Due between fixing rod and fixed plate without relative movement, without relative movement between fixing rod main body and rotating shaft, and without relative movement between fixed plate and housing, therefore be fixed by fixing rod and fixed plate between rotating shaft and the housing of traction electric machine, make cannot produce relative displacement between rotating shaft and traction electric machine housing, improve the stability of rotating shaft in traction electric machine housing, thus avoid rotating shaft to produce unbalanced pressure to bearing, alleviate the damage suffered by transportation process middle (center) bearing to a certain extent.
Further, described fixing rod can comprise fixing rod main body 7 and be arranged on the joint 8 of described fixing rod main body one end, described fixing rod main body is fixedly attached to described rotating shaft 4 by described joint, thus prevents the relative movement between described fixing rod main body and described rotating shaft.
Due to rotating shaft having blind hole, this blind hole is arranged on an end face of rotating shaft, and coaxial with rotating shaft, and the bottom of blind hole is provided with the second screw thread.Therefore, as shown in Figure 4, joint can adopt following structure:
Described joint comprises inserting pin 8;
Described inserting pin is coaxially fixedly connected with described fixing rod body 7, and suitable with blind hole 41 shape of described rotating shaft 4; The end face that described inserting pin contacts with the blind via bottom of described rotating shaft is provided with the first screw thread 81, and the second screw thread 42 of described first screw thread and described blind via bottom is suitable, is suitable for described inserting pin clamping in the blind hole of described rotating shaft.
This joint can ensure without relatively rotating between fixing rod main body and rotating shaft, and this joint structure is simple, making is easy.Described inserting pin and described fixing rod main body can be structure as a whole, and improve the stability of annexation between inserting pin and fixing rod main body, and meanwhile, the technique of integrative-structure is simpler.
Further, the cross section of described fixing rod can be greater than the cross section of described inserting pin.
Cross section due to fixing rod main body can be greater than the cross section of inserting pin, and therefore when inserting pin is plugged in rotating shaft blind hole, the end face that fixing rod main body is connected with inserting pin conforms on the end face of rotating shaft.Because shaft coupling has certain gravity, the fixing rod main body of laminating rotating shaft end face can share the transverse direction and vertical active force that shaft coupling applies, reduce the angular displacement of shaft coupling, thus decrease the unbalanced pressure of rotating shaft to bearing, reduce the damage to bearing further.
Further, described fixed plate can offer the first fixed hole 611, described first fixed hole is suitable for the housing described fixed plate 6 being fixedly attached to described traction electric machine 1, to prevent the relative movement between described fixed plate and described housing.
Further, described fixed plate also can be used for being fixedly attached to described shaft coupling.
Due between fixing rod and fixed plate without relative movement, relative movement between fixing rod main body and rotating shaft, and the relative movement between fixed plate and shaft coupling, therefore be fixed by fixing rod and fixed plate between shaft coupling and rotating shaft, make cannot produce relative displacement between shaft coupling and rotating shaft.Therefore avoid the unbalanced pressure because the relative movement between shaft coupling and rotating shaft makes rotating shaft produce bearing, alleviate the damage suffered by transportation process middle (center) bearing further.
Further, described fixed plate also can offer the second fixed hole 622, described second fixed hole is suitable for described fixed plate 6 being fixedly attached to shaft coupling 5, to prevent the relative movement between described fixed plate and described shaft coupling.
For being fixedly connected with between fixed plate and fixing rod, namely between fixed plate and fixing rod both without relatively rotating, also without slip vertically.In specific implementation process, as shown in Figure 3,4, following scheme can be adopted to prevent relatively rotating between fixed plate and fixing rod:
Described fixed plate is provided with the 3rd fixed hole 63, and the inwall of described 3rd fixed hole offers keyway 633;
Described fixing rod main body 7 is provided with the retainingf key 71 suitable with described keyway;
Described fixing rod main body 7 is located in the 3rd fixed hole 63 of described fixed plate, and by the cooperation of described retainingf key 71 and described keyway 633, to prevent relatively rotating between described fixing rod main body 7 and described fixed plate 6.
Certainly, keyway can also be arranged in fixing rod main body, retainingf key be arranged on the 3rd fixed hole inwall.By above scheme, fixing board card being connected on described fixing rod, making between fixed plate and fixing rod without relatively rotating.This interface arrangment has that structure is simple, the advantage of easy processing.Further, described 3rd fixed hole can be arranged on the central position of described fixed plate.
In addition, fixing device of the present invention is that the side being arranged on shaft coupling uses.Like this, fixed plate axially sliding to the direction away from shaft coupling likely along fixing rod, may cause the keyway of fixed plate to depart from the retainingf key of fixing rod.As shown in Figure 4, prevent fixed plate to slip away fixing rod along the axis of fixing rod by following scheme:
Described fixing rod main body is provided with bounding means 10, and described bounding means is used for carrying out spacing to fixed plate, prevents the keyway of described fixed plate to slip away described retainingf key.
Wherein, bounding means includes but not limited to be fastened on the bolt in fixing rod main body.
Bounding means can only adopt one, and be arranged on the outside of retainingf key in fixing rod main body, namely retainingf key is between bounding means and joint, due to joint connection rotating shaft, is socketed shaft coupling outside rotating shaft, so shaft coupling can play certain position-limiting action to fixed plate.
Connection is fixed by between fixed plate and fixing rod main body by the 3rd fixed hole on the retainingf key in fixing rod main body and bounding means, fixed plate and keyway.
In specific implementation process, as shown in Figure 3, described fixed plate can be made up of the two-part intersected: first portion 61 and second portion 62.
Described first fixed hole 611 is opened in described first portion 61, and described second fixed hole 622 is opened on described second portion 62;
Described 3rd fixed hole 63 is opened in the crossover location of described first portion 61 and the second fixed plate 62.
Owing to being communicated with for intersecting between the first fixed plate and the second fixed plate, in figure 3, fixed plate is X-shaped, relative to the fixed plate of whole full coverage, decreases the materials of fixed plate, namely decreases the fabricating cost of fixing device.
For make between fixed plate and traction electric machine to be fixedly connected with relation more stable, described first fixed hole can be at least two, and at least one pair of first fixed hole in these at least two is with described 3rd fixed hole Central Symmetry.Similarly, for make between fixed plate and shaft coupling to be fixedly connected with relation more stable, described second fixed hole can be at least two, and at least one pair of second fixed hole in these at least two is with described 3rd fixed hole Central Symmetry.
As shown in Figure 5, the first fixed hole is connected with the fixed hole 11 on traction electric machine by the first bolt, and the second fixed hole is connected with the fixed hole 51 on shaft coupling by the second bolt 9.Because fixed hole 11 is compared to distant apart from spindle central of fixed hole 51, therefore the first fixed hole is also far away compared to the distance of the second fixed hole distance the 3rd fixed hole.The distance of the first fixed hole and the 3rd fixed hole is equivalent to the distance of fixed hole 11 and spindle central distance, and the distance of the second fixed hole and the 3rd fixed hole is equivalent to the distance of fixed hole 51 and spindle central.
More than be described with reference to the accompanying drawings technological scheme of the present invention, consider the problem that in prior art, residual multiple users interference brings.By technological scheme of the present invention, residual multiple users interference can be reduced, thus reduce its various problems brought.
In the present invention, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.Term " multiple " refers to two or more, unless otherwise clear and definite restriction.
Although describe embodiments of the present invention by reference to the accompanying drawings, but those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, such amendment and modification all fall into by within claims limited range.
Claims (10)
1. be applied to the fixing device of traction electric machine in transportation process for band shaft coupling, it is characterized in that, comprise fixing rod and the fixed plate being fixedly attached to described fixing rod;
Described fixing rod, for being fixedly attached to the rotating shaft of described traction electric machine;
Described fixed plate, for being fixedly attached to the housing of described traction electric machine.
2. fixing device according to claim 1, is characterized in that,
Described fixing rod comprises fixing rod main body and is arranged on the joint of described fixing rod main body one end, and described fixing rod main body is fixedly attached to described rotating shaft by described joint.
3. fixing device according to claim 2, is characterized in that,
Described joint comprises inserting pin;
Described inserting pin is coaxially fixedly connected with described fixing rod body, and suitable with the blind hole shape of described rotating shaft;
The end face that described inserting pin contacts with the blind via bottom of described rotating shaft is provided with the first screw thread, and the second screw thread of described first screw thread and described blind via bottom is suitable.
4. fixing device according to claim 3, is characterized in that, described inserting pin and described fixing rod main body are structure as a whole.
5. fixing device according to claim 3, is characterized in that, the cross section of described fixing rod main body is greater than the cross section of described inserting pin.
6. fixing device according to claim 1, is characterized in that,
Described fixed plate offers the first fixed hole, described fixed plate is connected to described housing by described first fixed hole.
7. fixing device according to claim 1, is characterized in that,
Described fixed plate is also for being fixedly attached to described shaft coupling.
8. fixing device according to claim 7, is characterized in that,
Described fixed plate offers the second fixed hole, described fixed plate is connected to described shaft coupling by described second fixed hole.
9. fixing device according to claim 2, is characterized in that,
Described fixed plate offers the 3rd fixed hole, described fixing rod main body is located in the 3rd fixed hole of described fixed plate;
Described 3rd fixed hole inwall offers keyway, described fixing rod main body is provided with retainingf key, described retainingf key is arranged along the axis of described fixing rod main body, and suitable with described retainingf key.
10. fixing device according to claim 9, is characterized in that, described fixing rod main body is provided with bounding means, and described bounding means is used for spacing to described fixed plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474858.6A CN105020215B (en) | 2015-08-05 | 2015-08-05 | Applied to fixing device of the traction electric machine with shaft coupling in transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474858.6A CN105020215B (en) | 2015-08-05 | 2015-08-05 | Applied to fixing device of the traction electric machine with shaft coupling in transportation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105020215A true CN105020215A (en) | 2015-11-04 |
| CN105020215B CN105020215B (en) | 2017-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510474858.6A Active CN105020215B (en) | 2015-08-05 | 2015-08-05 | Applied to fixing device of the traction electric machine with shaft coupling in transportation |
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| CN (1) | CN105020215B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059693A (en) * | 2022-06-30 | 2022-09-16 | 江苏中车电机有限公司 | Motor transportation bearing protection method |
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|---|---|---|---|---|
| US4648579A (en) * | 1985-06-10 | 1987-03-10 | Wilson John D | Cushioned mounting arrangement for a motor housing |
| CN201576972U (en) * | 2009-11-13 | 2010-09-08 | 三一电气有限责任公司 | Extending shaft protecting device used on motor |
| CN201656615U (en) * | 2010-03-05 | 2010-11-24 | 大连天元电机股份有限公司 | Fixed device for rotating shaft of power generator |
| CN202210725U (en) * | 2011-09-01 | 2012-05-02 | 西安盾安电气有限公司 | Motor protection plate |
| CN202395630U (en) * | 2011-11-21 | 2012-08-22 | 哈尔滨电机厂有限责任公司 | Locking structure of rotary shaft coupler of non-salient pole synchronous generator |
| CN103475139A (en) * | 2013-09-09 | 2013-12-25 | 中达电机股份有限公司 | Rotating shaft fixing device of three-phase asynchronous motor |
| CN204376557U (en) * | 2015-02-06 | 2015-06-03 | 山东齐鲁电机制造有限公司 | A kind of ready-package generator amature retaining device |
| CN204921555U (en) * | 2015-08-05 | 2015-12-30 | 南车青岛四方机车车辆股份有限公司 | Be applied to fixing device of traction motor in transportation who takes shaft coupling |
-
2015
- 2015-08-05 CN CN201510474858.6A patent/CN105020215B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4648579A (en) * | 1985-06-10 | 1987-03-10 | Wilson John D | Cushioned mounting arrangement for a motor housing |
| CN201576972U (en) * | 2009-11-13 | 2010-09-08 | 三一电气有限责任公司 | Extending shaft protecting device used on motor |
| CN201656615U (en) * | 2010-03-05 | 2010-11-24 | 大连天元电机股份有限公司 | Fixed device for rotating shaft of power generator |
| CN202210725U (en) * | 2011-09-01 | 2012-05-02 | 西安盾安电气有限公司 | Motor protection plate |
| CN202395630U (en) * | 2011-11-21 | 2012-08-22 | 哈尔滨电机厂有限责任公司 | Locking structure of rotary shaft coupler of non-salient pole synchronous generator |
| CN103475139A (en) * | 2013-09-09 | 2013-12-25 | 中达电机股份有限公司 | Rotating shaft fixing device of three-phase asynchronous motor |
| CN204376557U (en) * | 2015-02-06 | 2015-06-03 | 山东齐鲁电机制造有限公司 | A kind of ready-package generator amature retaining device |
| CN204921555U (en) * | 2015-08-05 | 2015-12-30 | 南车青岛四方机车车辆股份有限公司 | Be applied to fixing device of traction motor in transportation who takes shaft coupling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059693A (en) * | 2022-06-30 | 2022-09-16 | 江苏中车电机有限公司 | Motor transportation bearing protection method |
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| Publication number | Publication date |
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| CN105020215B (en) | 2017-10-31 |
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