CN113533963B - Traction motor test device - Google Patents
Traction motor test device Download PDFInfo
- Publication number
- CN113533963B CN113533963B CN202110888879.8A CN202110888879A CN113533963B CN 113533963 B CN113533963 B CN 113533963B CN 202110888879 A CN202110888879 A CN 202110888879A CN 113533963 B CN113533963 B CN 113533963B
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- CN
- China
- Prior art keywords
- oil seal
- motor
- flexible coupling
- auxiliary shaft
- auxiliary
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- 238000012360 testing method Methods 0.000 title claims abstract description 46
- 230000008878 coupling Effects 0.000 claims abstract description 49
- 238000010168 coupling process Methods 0.000 claims abstract description 49
- 238000005859 coupling reaction Methods 0.000 claims abstract description 49
- 230000003068 static effect Effects 0.000 claims description 23
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 70
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention belongs to the technical field of motor test devices, and particularly relates to a traction motor test device. The technical proposal is as follows: the traction motor test device comprises two auxiliary shafts, wherein one end of each auxiliary shaft is provided with end face teeth, a rotating shaft of a tested motor and a rotating shaft of an accompanying motor are connected with a flexible coupling, the other end of the flexible coupling is provided with end face teeth, and the end face teeth on the auxiliary shafts are meshed with the end face teeth on the flexible coupling; the auxiliary shafts are connected with connecting flanges, and a torque meter is connected between the connecting flanges on the two auxiliary shafts. The invention provides a test device for a traction motor with an output end being end face teeth.
Description
Technical Field
The invention belongs to the technical field of motor test devices, and particularly relates to a traction motor test device.
Background
After the brand new traction motor is designed, two prototypes are required to be manufactured and subjected to pattern tests, and after the prototypes are produced and the pattern tests are verified to be qualified, the motor can be put into production formally. In model test, two prototypes are mechanically coupled to transmit torque. At present, most traction motors transmit torque through shaft cone interference fit, and the existing test device can only be connected with a motor with a shaft cone at the output end. During model test, the test device adopts interference fit of the connecting flange and the motor shaft cone to realize mechanical coupling of the tested motor and the accompanying motor, thereby realizing torque transmission. However, the above test device has no shaft cone connection structure, and cannot be used for testing a traction motor with an end face tooth at the output end.
Disclosure of Invention
In order to solve the above problems in the prior art, an object of the present invention is to provide a test device for a traction motor having an output end with end teeth.
The technical scheme adopted by the invention is as follows:
the traction motor test device comprises two auxiliary shafts, wherein one end of each auxiliary shaft is provided with end face teeth, a rotating shaft of a tested motor and a rotating shaft of an accompanying motor are connected with a flexible coupling, the other end of the flexible coupling is provided with end face teeth, and the end face teeth on the auxiliary shafts are meshed with the end face teeth on the flexible coupling; the auxiliary shafts are connected with connecting flanges, and a torque meter is connected between the connecting flanges on the two auxiliary shafts.
The output end of the tested motor is provided with end face teeth on the flexible coupling, and after the tested motor is started, the flexible coupling transmits torque to the first auxiliary shaft through the cooperation of the end face teeth. The first auxiliary shaft transmits torque to the second auxiliary shaft through two connecting flanges. The second auxiliary shaft transmits torque to the flexible coupling of the accompanying test motor through the end face teeth, and then the rotating shaft of the accompanying test motor rotates correspondingly. And a torque meter is connected between the two connecting flanges so as to count test data, and thus, the performance of the tested motor is accurately judged. The invention can connect the end face tooth output shaft of the tested motor and the end face tooth output end of the accompanying motor, thereby realizing the mechanical coupling between the tested motor and the accompanying motor and realizing the test of the motor with the end face tooth output end.
As a preferable scheme of the invention, the auxiliary shaft is internally connected with a locking bolt in a threaded manner, and the other end of the locking bolt is in threaded connection with the flexible coupling. The locking screw can lock the auxiliary shaft and the flexible coupling, so that the flexible coupling is prevented from moving relative to the auxiliary shaft, the reliable engagement of the end face teeth on the auxiliary shaft and the end face teeth on the flexible coupling is ensured, and the reliable transmission of torque is ensured.
As a preferable scheme of the invention, the flexible coupling is in interference fit with the rotating shaft of the tested motor or the rotating shaft of the accompanying motor through the conical end. The flexible coupling is an output end of the traction motor, and the flexible coupling is in interference fit with a rotating shaft of the motor through a shaft cone, so that the flexible coupling is ensured to be reliably connected.
As a preferable scheme of the invention, a cushion block is arranged between the nut of the locking bolt and the auxiliary shaft. The spacer blocks prevent the locking screw from loosening relative to the auxiliary shaft.
As a preferable mode of the invention, the auxiliary shaft is connected with an outer end cover through a bearing. The outer end cap is connected with the housing or other fixing mechanism of the motor so that the outer end cap cannot rotate. The outer end cover can protect the flexible coupling and the auxiliary shaft, so that safety in test is ensured.
As a preferable scheme of the invention, the outer end cover is connected with the shell of the tested motor or the shell of the accompanying motor through bolts. When the outer end cover is connected with the traction motor through bolts, the outer end cover is convenient to assemble and disassemble.
As a preferable scheme of the invention, an inner oil seal assembly and an outer oil seal assembly are arranged between the outer end cover and the auxiliary shaft, and the bearing is positioned between the inner oil seal assembly and the outer oil seal assembly. The inner oil seal assembly and the outer oil seal assembly can seal the bearing, so that the lubricating oil of the bearing is prevented from leaking, and the bearing is ensured to be reliably lubricated all the time.
As the preferable scheme of the invention, the inner oil seal assembly comprises an inner oil seal static piece and an inner oil seal moving piece which are mutually embedded, wherein the inner oil seal static piece is connected in the outer end cover, and the inner oil seal moving piece is connected on the auxiliary shaft. The inner oil seal moving piece and the inner oil seal static piece are mutually embedded, so that the inner oil seal moving piece and the inner oil seal static piece seal one side of the bearing together. The inner oil seal moving piece and the inner oil seal static piece are not in direct contact, so that the inner oil seal moving piece and the outer end cover are static when rotating along with the auxiliary shaft.
As the preferable scheme of the invention, the outer oil seal assembly comprises an outer oil seal static piece and an outer oil seal moving piece which are mutually embedded, wherein the outer oil seal static piece is connected to the outer end cover, and the outer oil seal moving piece is connected to the auxiliary shaft. The outer oil seal moving piece and the outer oil seal static piece are mutually embedded, so that the outer oil seal moving piece and the outer oil seal static piece seal the other side of the bearing together. The outer oil seal moving piece and the outer oil seal static piece are not in direct contact, so that the outer oil seal moving piece and the outer end cover are static when rotating along with the auxiliary shaft.
As a preferable scheme of the invention, the outer oil seal static piece is connected to the outer end cover through a bolt. The outer oil seal static piece is connected with the outer end cover through bolts, so that the disassembly and assembly are convenient.
The beneficial effects of the invention are as follows:
1. When the flexible coupling of the tested motor transmits torque to the first auxiliary shaft through the end face teeth. The first auxiliary shaft transmits torque to the second auxiliary shaft through two connecting flanges. The second auxiliary shaft transmits torque to the flexible coupling of the accompanying test motor through the end face teeth, and then the rotating shaft of the accompanying test motor rotates correspondingly. And a torque meter is connected between the two connecting flanges so as to count test data, and thus, the performance of the tested motor is accurately judged. The invention can connect the end face tooth output shaft of the tested motor and the end face tooth output end of the accompanying motor, thereby realizing the mechanical coupling between the tested motor and the accompanying motor and realizing the test of the motor with the end face tooth output end.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a partial block diagram of the present invention;
fig. 3 is a schematic structural view of a flexible coupling.
In the figure, 1-auxiliary shaft; 2-flexible couplings; 3-connecting flanges; 4-torque meter; 5-locking a bolt; 6-an outer end cap; 7-an inner oil seal assembly; 8-an outer oil seal assembly; an 11-bond; 12-a bearing; 51-cushion blocks; 71-inner oil seal static piece; 72-inner oil seal moving member; 81-an outer oil seal static piece; 82-outer oil seal.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1 to 3, the traction motor test device of the embodiment comprises two auxiliary shafts 1, wherein one end of each auxiliary shaft 1 is provided with end face teeth, a rotating shaft of a tested motor and a rotating shaft of an accompanying motor are both connected with a flexible coupling 2, the other end of the flexible coupling 2 is provided with end face teeth, and the end face teeth on the auxiliary shafts 1 are meshed with the end face teeth on the flexible coupling 2; the auxiliary shafts 1 are connected with connecting flanges 3 through keys 11, and torque meters 4 are connected between the connecting flanges 3 on the two auxiliary shafts 1 through bolts.
The output end of the tested motor is provided with end face teeth on the flexible coupling 2, and after the tested motor is started, the flexible coupling 2 transmits torque to the first auxiliary shaft 1 through the cooperation of the end face teeth. The first auxiliary shaft 1 transmits torque to the second auxiliary shaft 1 via two connecting flanges 3. The second auxiliary shaft 1 transmits torque to the flexible coupling 2 of the accompanying test motor through the end face teeth, and then the rotating shaft of the accompanying test motor rotates correspondingly. And a torque meter 4 is connected between the two connecting flanges 3 to count test data, so that the performance of the tested motor is accurately judged. The invention can connect the end face tooth output shaft of the tested motor and the end face tooth output end of the accompanying motor, thereby realizing the mechanical coupling between the tested motor and the accompanying motor and realizing the test of the motor with the end face tooth output end.
The present invention can achieve a maximum torque transfer of 13700 n.m. The test device disclosed by the invention not only can be used for pattern tests, but also can be used for factory tests of companies, and the tool investment is reduced. The invention can be used as a test unit to be integrally disassembled and assembled, and the test period is reduced.
In order to ensure reliable torque transmission, the auxiliary shaft 1 is internally connected with a locking bolt 5 in a threaded manner, and the other end of the locking bolt 5 is in threaded connection with the flexible coupling 2. The locking screw can lock the auxiliary shaft 1 and the flexible coupling 2, so that the flexible coupling 2 is prevented from moving relative to the auxiliary shaft 1, the reliable engagement of the end face teeth on the auxiliary shaft 1 and the end face teeth on the flexible coupling 2 is ensured, and the reliable transmission of torque is ensured. The flexible coupling 2 and the auxiliary shaft 1 are connected together by the locking screw, and the use of other external devices to reliably engage the flexible coupling 2 with the fuzhou shaft is avoided.
Further, a spacer 51 is provided between the nut of the lock bolt 5 and the auxiliary shaft 1. The spacer 51 prevents the locking screw from loosening with respect to the auxiliary shaft 1.
The flexible coupling 2 is in interference fit with the rotating shaft of the tested motor or the rotating shaft of the accompanying motor through the conical end. The flexible coupling 2 is an output end of the traction motor, and the flexible coupling 2 is in interference fit with a rotating shaft of the motor through a shaft cone, so that the flexible coupling 2 is ensured to be reliably connected.
In order to protect the flexible coupling 2 and the auxiliary shaft 1, the auxiliary shaft 1 is connected with an outer end cap 6 through a bearing 12. The outer end cap 6 is connected to the housing of the motor or other securing mechanism so that the outer end cap 6 does not rotate. The outer end cover 6 can protect the flexible coupling 2 and the auxiliary shaft 1, and ensure the safety during the test.
The outer end cover 6 is connected with the shell of the tested motor or the shell of the accompanying motor through bolts. When the outer end cover 6 is connected with the traction motor through bolts, the outer end cover is convenient to assemble and disassemble.
Still further, an inner oil seal assembly 7 and an outer oil seal assembly 8 are arranged between the outer end cover 6 and the auxiliary shaft 1, and a bearing 12 is positioned between the inner oil seal assembly 7 and the outer oil seal assembly 8. The inner oil seal assembly 7 and the outer oil seal assembly 8 can seal the bearing 12, so that the lubricating oil of the bearing 12 is prevented from leaking, and the bearing 12 is ensured to be reliably lubricated all the time.
Wherein, the inner oil seal assembly 7 comprises an inner oil seal static piece 71 and an inner oil seal moving piece 72 which are mutually embedded, the inner oil seal static piece 71 is connected in the outer end cover 6, and the inner oil seal moving piece 72 is connected on the auxiliary shaft 1. The inner oil seal moving member 72 and the inner oil seal stationary member 71 are embedded in each other so that the inner oil seal moving member 72 and the inner oil seal stationary member 71 seal one side of the bearing 12 together. The inner oil seal moving member 72 and the inner oil seal stationary member 71 are not in direct contact, so that the inner oil seal moving member 72 and the outer end cover 6 are stationary while rotating with the auxiliary shaft 1.
The outer oil seal assembly 8 comprises an outer oil seal static piece 81 and an outer oil seal moving piece 82 which are embedded into each other, the outer oil seal static piece 81 is connected to the outer end cover 6, and the outer oil seal moving piece 82 is connected to the auxiliary shaft 1. The outer oil seal moving member 82 and the outer oil seal stationary member 81 are embedded in each other so that the outer oil seal moving member 82 and the outer oil seal stationary member 81 seal the other side of the bearing 12 together. The outer oil seal moving member 82 and the outer oil seal stationary member 81 are not in direct contact, so that the outer oil seal moving member 82 is stationary with the outer end cover 6 when rotating with the auxiliary shaft 1.
Further, the outer oil seal stationary member 81 is connected to the outer end cap 6 by bolts. The outer oil seal static piece 81 is connected with the outer end cover 6 through bolts, so that the disassembly and assembly are convenient.
The invention is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present invention, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present invention, fall within the scope of protection of the present invention.
Claims (7)
1. The traction motor test device is characterized by comprising two auxiliary shafts (1), wherein one end of each auxiliary shaft (1) is provided with end face teeth, a rotating shaft of a tested motor and a rotating shaft of an accompanying motor are connected with a flexible coupling (2), the other end of each flexible coupling (2) is provided with end face teeth, and the end face teeth on each auxiliary shaft (1) are meshed with the end face teeth on the corresponding flexible coupling (2); the auxiliary shafts (1) are connected with connecting flanges (3), and a torque meter (4) is connected between the connecting flanges (3) on the two auxiliary shafts (1);
the auxiliary shaft (1) is internally connected with a locking bolt (5) in a threaded manner, and the other end of the locking bolt (5) is in threaded connection with the flexible coupling (2);
The flexible coupling (2) is in interference fit with the rotating shaft of the tested motor or the rotating shaft of the accompanying motor through the conical end;
the auxiliary shaft (1) is connected with an outer end cover (6) through a bearing (12).
2. A traction motor testing device according to claim 1, characterized in that a spacer (51) is arranged between the nut of the locking bolt (5) and the auxiliary shaft (1).
3. A traction motor testing apparatus according to claim 1, characterized in that the outer end cap (6) is bolted to the housing of the motor under test or to the housing of the accompanying motor.
4. A traction motor testing device according to claim 1, characterized in that an inner oil seal assembly (7) and an outer oil seal assembly (8) are arranged between the outer end cover (6) and the auxiliary shaft (1), and the bearing (12) is arranged between the inner oil seal assembly (7) and the outer oil seal assembly (8).
5. A traction motor testing device according to claim 4, wherein the inner oil seal assembly (7) comprises an inner oil seal static member (71) and an inner oil seal moving member (72) which are embedded with each other, the inner oil seal static member (71) is connected in the outer end cover (6), and the inner oil seal moving member (72) is connected to the auxiliary shaft (1).
6. A traction motor testing device according to claim 5, wherein the outer oil seal assembly (8) comprises an outer oil seal stationary member (81) and an outer oil seal moving member (82) which are embedded in each other, the outer oil seal stationary member (81) is connected to the outer end cap (6), and the outer oil seal moving member (82) is connected to the auxiliary shaft (1).
7. A traction motor testing apparatus according to claim 6, wherein said outer oil seal stationary member (81) is bolted to the outer end cap (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110888879.8A CN113533963B (en) | 2021-08-03 | 2021-08-03 | Traction motor test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110888879.8A CN113533963B (en) | 2021-08-03 | 2021-08-03 | Traction motor test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113533963A CN113533963A (en) | 2021-10-22 |
| CN113533963B true CN113533963B (en) | 2024-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110888879.8A Active CN113533963B (en) | 2021-08-03 | 2021-08-03 | Traction motor test device |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215932079U (en) * | 2021-08-03 | 2022-03-01 | 成都中车电机有限公司 | Traction motor test device |
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| GB1227134A (en) * | 1967-04-19 | 1971-04-07 | ||
| JP2807171B2 (en) * | 1993-05-03 | 1998-10-08 | デビット エー．ジョンソン | Electrical interconnection contact device |
| JP4298886B2 (en) * | 1999-10-29 | 2009-07-22 | トヨタ自動車株式会社 | Traction test method and apparatus |
| CN101206244A (en) * | 2007-08-21 | 2008-06-25 | 周志雄 | Combined test method and test-bed for asynchronization traction motor four-dimensional movement as well as usage thereof |
| DE102012210191A1 (en) * | 2011-12-14 | 2013-06-20 | Winergy Ag | Test device and method for testing a first and / or a second electrical machine |
| CN202600113U (en) * | 2012-04-16 | 2012-12-12 | 江苏新誉重工科技有限公司 | Driving device for type testing of wind generating set |
| KR101453724B1 (en) * | 2014-08-29 | 2014-10-22 | 현대중공업 주식회사 | Universal joint position adjusting apparatus of motor test equipment |
| DE102015117934B4 (en) * | 2015-10-21 | 2020-03-12 | Webasto SE | Arrangement and method for operating a movable element for a motor vehicle and system for a motor vehicle |
| CN105403833B (en) * | 2015-12-12 | 2018-02-02 | 中船重工电机科技股份有限公司 | Motor electric performance testing device |
| KR101658382B1 (en) * | 2016-03-28 | 2016-09-21 | 김병국 | loss measuring apparatus for motor |
| CN106122076B (en) * | 2016-08-24 | 2018-08-28 | 上海电气凯士比核电泵阀有限公司 | A kind of special roof structure end face tooth type flexible coupling |
| CN112698205A (en) * | 2021-01-14 | 2021-04-23 | 成都中车电机有限公司 | Motor counter-dragging test device and installation method thereof |
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- 2021-08-03 CN CN202110888879.8A patent/CN113533963B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215932079U (en) * | 2021-08-03 | 2022-03-01 | 成都中车电机有限公司 | Traction motor test device |
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| CN113533963A (en) | 2021-10-22 |
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