CN108507775B - Test device for simulating rotor rub-impact fault - Google Patents
Test device for simulating rotor rub-impact fault Download PDFInfo
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- CN108507775B CN108507775B CN201810379832.7A CN201810379832A CN108507775B CN 108507775 B CN108507775 B CN 108507775B CN 201810379832 A CN201810379832 A CN 201810379832A CN 108507775 B CN108507775 B CN 108507775B
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- rubbing
- bearing seat
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- impact
- rotating shaft
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- 239000002184 metal Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000009863 impact test Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a test device for simulating a rotor rub-impact fault, belongs to the technical field of rotor rub-impact tests, and aims to solve the problems that an existing test device cannot adjust the contact depth of a rub-impact contact piece and a rotor, cannot simulate weak to serious rub-impact faults and cannot simulate rub-impact faults unidirectionally. The motor and the rubbing device are fixed on the working platform, the central lines of the motor and the rubbing device are positioned on the same straight line, the output end of the motor is connected with one end of the rotating shaft through the coupler, the other end of the rotating shaft sequentially penetrates through the first bearing seat, the rubbing device, the disc and the second bearing seat, and the first bearing seat and the second bearing seat are fixedly arranged on the working platform. According to the test device for simulating the rotor rub-impact fault, the rub-impact contact pieces can be adjusted through the plurality of adjusting bolts, so that the rotor rub-impact faults with different depths and multiple local surface contacts can be simulated accurately.
Description
Technical Field
The invention relates to a test device, in particular to a test device for simulating a rotor rub-impact fault, and belongs to the technical field of rotor rub-impact tests.
Background
In practical engineering, a rotating machine such as a gas turbine, an aeroengine, a steam turbine and the like has a rotor rub-impact phenomenon which is a common typical fault, so that the whole machine has larger vibration, the reliability and the stability of the machine are reduced, and huge economic loss is caused. Therefore, the built-in mechanism of the rotor system rub fault test simulation device for researching the typical rub fault of the rotor has great engineering practical significance and guiding effect, the existing test device cannot realize local surface contact, has certain difference from the actual situation, has great influence on test data, cannot realize single-surface contact to multi-surface contact, and cannot provide complete rub fault simulation.
Disclosure of Invention
The invention aims to provide a test device for simulating a rotor rub-impact fault so as to solve the technical problems.
The test device for simulating the rotor rub-impact fault comprises a motor, a coupler, a rotating shaft, a first bearing seat, a disc, a second bearing seat and a rub-impact device;
the motor and the rubbing device are fixed on the working platform, the central lines of the motor and the rubbing device are positioned on the same straight line, the output end of the motor is connected with one end of the rotating shaft through the coupler, the other end of the rotating shaft sequentially penetrates through the first bearing seat, the rubbing device, the disc and the second bearing seat, and the first bearing seat and the second bearing seat are fixedly arranged on the working platform.
Preferably: the rubbing device comprises a rubbing bracket, a first adjusting bolt, a first rubbing contact piece, a second adjusting bolt, a second rubbing contact piece and a fastening bolt;
the friction support is installed on the working platform through fastening bolts, first adjusting bolts are horizontally installed on side walls of two sides of the friction support, second adjusting bolts are installed at the upper end of the friction support, first friction contact pieces and second friction contact pieces are installed at the ends of the first adjusting bolts and the second adjusting bolts respectively, and the first friction contact pieces and the second friction contact pieces are distributed on the outer side of the rotating shaft.
Preferably: the first rubbing contact piece and the second rubbing contact piece are hard plastic rubbing contact pieces, rubber rubbing contact pieces or metal rubbing contact pieces.
Preferably: the first rubbing contact piece and the second rubbing contact piece are small-section arc rubbing contact pieces, and the circular curvature of the rubbing contact pieces is smaller than that of the rotating shaft.
Compared with the existing products, the invention has the following effects: the rubbing contact piece can be adjusted through a plurality of adjusting bolts, so that the rubbing faults of rotors with different depths and multiple local surface contacts can be accurately simulated; local surface contact is more consistent with the actual situation; the designed device can realize multi-local surface contact, and can simulate slight to severe faults from single-surface contact to multi-surface contact by adjusting the rotating distance of the bolt; since the rubbing contact pieces of different materials can be manufactured, damage to the rotor can be avoided. In addition, the device of design simple structure, with low costs, processing is convenient.
Drawings
FIG. 1 is a schematic structural diagram of a test apparatus for simulating a rub-impact failure of a rotor according to the present invention;
fig. 2 is a schematic structural view of the rubbing device.
In the figure: 1-motor, 2-shaft coupling, 3-pivot, 4-first bearing frame, 5-disc, 6-second bearing frame, 7-bump the device, 71-bump the friction support, 72-first adjusting bolt, 73-first bump the contact, 74-second adjusting bolt, 75-second bump the contact, 76-fastening bolt.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the test device for simulating the rub-impact fault of the rotor comprises a motor 1, a coupler 2, a rotating shaft 3, a first bearing seat 4, a disc 5, a second bearing 6 and a rub-impact device 7;
the motor 1 and the rubbing device 7 are fixed on a working platform, the central lines of the motor 1 and the rubbing device 7 are positioned on the same straight line, the output end of the motor 1 is connected with one end of the rotating shaft 3 through the coupler 2, the other end of the rotating shaft 3 sequentially penetrates through the first bearing seat 4, the rubbing device 7, the disc 5 and the second bearing seat 6, and the first bearing seat 4 and the second bearing seat 6 are fixedly mounted on the working platform.
Further: the rubbing device 7 includes a rubbing bracket 71, a first adjusting bolt 72, a first rubbing contact 73, a second adjusting bolt 74, a second rubbing contact 75, and a fastening bolt 76;
the rubbing support 71 is installed on the working platform through fastening bolts 76, first adjusting bolts 72 are horizontally installed on side walls of two sides of the rubbing support 71, second adjusting bolts 74 are installed at the upper ends of the rubbing support 71, first rubbing contact pieces 73 and second rubbing contact pieces 75 are installed at the end portions of the first adjusting bolts 72 and the second adjusting bolts 74 respectively, and the first rubbing contact pieces 73 and the second rubbing contact pieces 75 are distributed outside the rotating shaft 3.
Further: the first and second bump contacts 73 and 75 are hard plastic bump contacts, rubber bump contacts, or metal bump contacts.
Further: the first rubbing contact 73 and the second rubbing contact 75 are small arc-shaped rubbing contacts, and the circular curvature of the rubbing contacts is smaller than that of the rotating shaft 3.
Working principle: the motor is used as a driving device, and drives the rotating shaft and the disc to rotate at a high speed through the coupler; the rotating shaft and the disc are respectively used for simulating the rotor and the rotor disc, the friction bracket is fixed through the fastening bolt, and the friction contact piece is fixedly connected with the adjusting bolt; the three adjusting bolts are in threaded connection with the rubbing support and are used for adjusting the rubbing contact depth of the rubbing contact piece and the rotor; the friction contact piece can be made of different materials (hard plastic, rubber and metal) according to the working condition test requirement of the rotor, so that the rotor can be prevented from being damaged; the shape of the rubbing contact piece is a small arc, the circular curvature of the rubbing contact piece is smaller than that of the rotor for better local surface contact, and the central axes of the three adjusting bolts and the rubbing contact piece are intersected with the center of the rotor.
In the initial state of the test bed, the rubbing contact piece is at a certain distance from the rotor, no contact occurs, and when the rubbing fault of the rotor needs to be simulated, the contact depth of the rubbing contact piece and the rotor is adjusted through three adjusting bolts so as to simulate weak to serious rubbing fault.
The present embodiment is only exemplary of the present patent, and does not limit the scope of protection thereof, and those skilled in the art may also change the part thereof, so long as the spirit of the present patent is not exceeded, and the present patent is within the scope of protection thereof.
Claims (2)
1. A test device for simulating rotor rub-impact faults is characterized in that: comprises a motor (1), a coupling (2), a rotating shaft (3), a first bearing seat (4), a disc (5), a second bearing seat (6) and a rubbing device (7);
the motor (1) and the rubbing device (7) are both fixed on the working platform, the central lines of the motor (1) and the rubbing device (7) are positioned on the same straight line, the output end of the motor (1) is connected with one end of the rotating shaft (3) through the coupler (2), the other end of the rotating shaft (3) sequentially passes through the first bearing seat (4), the rubbing device (7), the disc (5) and the second bearing seat (6), and the first bearing seat (4) and the second bearing seat (6) are fixedly arranged on the working platform;
the rubbing device (7) comprises a rubbing bracket (71), a first adjusting bolt (72), a first rubbing contact piece (73), a second adjusting bolt (74), a second rubbing contact piece (75) and a fastening bolt (76);
the friction support (71) is arranged on the working platform through fastening bolts (76), first adjusting bolts (72) are horizontally arranged on side walls of two sides of the friction support (71), second adjusting bolts (74) are arranged at the upper ends of the friction support (71), first friction contact pieces (73) and second friction contact pieces (75) are respectively arranged at the end parts of the first adjusting bolts (72) and the second adjusting bolts (74), and the first friction contact pieces (73) and the second friction contact pieces (75) are distributed outside the rotating shaft (3);
the first rubbing contact piece (73) and the second rubbing contact piece (75) are in a small-section arc shape, the circular curvature of the first rubbing contact piece (73) and the second rubbing contact piece (75) is smaller than that of the rotating shaft (3), and the central axes of the three adjusting bolts, the first rubbing contact piece (73) and the second rubbing contact piece (75) are intersected with the center of the rotating shaft (3).
2. The test device for simulating rotor rub-impact failure according to claim 1, wherein: the first rubbing contact (73) and the second rubbing contact (75) are hard plastic rubbing contacts, rubber rubbing contacts or metal rubbing contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810379832.7A CN108507775B (en) | 2018-04-25 | 2018-04-25 | Test device for simulating rotor rub-impact fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810379832.7A CN108507775B (en) | 2018-04-25 | 2018-04-25 | Test device for simulating rotor rub-impact fault |
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| Publication Number | Publication Date |
|---|---|
| CN108507775A CN108507775A (en) | 2018-09-07 |
| CN108507775B true CN108507775B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810379832.7A Active CN108507775B (en) | 2018-04-25 | 2018-04-25 | Test device for simulating rotor rub-impact fault |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141893B (en) * | 2018-09-29 | 2020-03-13 | 天津大学 | Pneumatic double-rotor-casing multifunctional test bed |
| CN109238679A (en) * | 2018-09-29 | 2019-01-18 | 天津大学 | One kind touches that power of rubbing is measurable pneumatically to touch the device that rubs |
| CN111638048B (en) * | 2020-05-28 | 2022-01-21 | 扬州大学 | Simulation device for rubbing fault caused by thermal bending of multistage bladed disk rotor |
| CN111965538A (en) * | 2020-07-05 | 2020-11-20 | 武汉科技大学 | Motor fault simulation platform for electric vehicle |
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|---|---|---|---|---|
| JPH0843193A (en) * | 1994-07-29 | 1996-02-16 | Toshiba Corp | Rubbing detecting method for rotary machine |
| JP2003195740A (en) * | 2001-12-25 | 2003-07-09 | Toyota Central Res & Dev Lab Inc | Dummy joint structure for collision experiment |
| CN201637560U (en) * | 2009-10-23 | 2010-11-17 | 南京航空航天大学 | Rotor rub-impact experiment device |
| CN102410929A (en) * | 2011-10-28 | 2012-04-11 | 天津大学 | Active-control hydraulic type rub-impact fault detection test apparatus |
| JP2014016269A (en) * | 2012-07-10 | 2014-01-30 | Kyowa Interface Science Co Ltd | Friction testing device |
| CN103759934A (en) * | 2014-01-26 | 2014-04-30 | 清华大学 | Birotor fault simulation experiment device |
| CN103884501A (en) * | 2014-04-04 | 2014-06-25 | 华北电力大学（保定） | Multifunctional rotor test bench |
| CN104634526A (en) * | 2015-01-27 | 2015-05-20 | 西安交通大学 | Rotor rub impact fault detection method based on nonlinear compression conversion and rotor rub impact fault detection system based on nonlinear compression conversion |
| CN208012861U (en) * | 2018-04-25 | 2018-10-26 | 哈尔滨电气股份有限公司 | A kind of experimental rig of model rotor impact-rub malfunction |
-
2018
- 2018-04-25 CN CN201810379832.7A patent/CN108507775B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0843193A (en) * | 1994-07-29 | 1996-02-16 | Toshiba Corp | Rubbing detecting method for rotary machine |
| JP2003195740A (en) * | 2001-12-25 | 2003-07-09 | Toyota Central Res & Dev Lab Inc | Dummy joint structure for collision experiment |
| CN201637560U (en) * | 2009-10-23 | 2010-11-17 | 南京航空航天大学 | Rotor rub-impact experiment device |
| CN102410929A (en) * | 2011-10-28 | 2012-04-11 | 天津大学 | Active-control hydraulic type rub-impact fault detection test apparatus |
| JP2014016269A (en) * | 2012-07-10 | 2014-01-30 | Kyowa Interface Science Co Ltd | Friction testing device |
| CN103759934A (en) * | 2014-01-26 | 2014-04-30 | 清华大学 | Birotor fault simulation experiment device |
| CN103884501A (en) * | 2014-04-04 | 2014-06-25 | 华北电力大学（保定） | Multifunctional rotor test bench |
| CN104634526A (en) * | 2015-01-27 | 2015-05-20 | 西安交通大学 | Rotor rub impact fault detection method based on nonlinear compression conversion and rotor rub impact fault detection system based on nonlinear compression conversion |
| CN208012861U (en) * | 2018-04-25 | 2018-10-26 | 哈尔滨电气股份有限公司 | A kind of experimental rig of model rotor impact-rub malfunction |
Non-Patent Citations (1)
| Title |
|---|
| 转子系统碰摩故障的实验研究;刘桂珍;陈亚哲;刘杨;闻邦椿;;机械与电子(第06期);全文 * |
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| CN108507775A (en) | 2018-09-07 |
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