CN107870064B - Phase matching-based dynamic balance system for multi-disc rotor connected by sleeve teeth - Google Patents
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- CN107870064B CN107870064B CN201711084720.0A CN201711084720A CN107870064B CN 107870064 B CN107870064 B CN 107870064B CN 201711084720 A CN201711084720 A CN 201711084720A CN 107870064 B CN107870064 B CN 107870064B
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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
- G01M1/00—Testing static or dynamic balance of machines or structures
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- G01M1/36—Compensating imbalance by adjusting position of masses built-in the body to be tested
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Abstract
The invention discloses a sleeve gear connection multi-disc rotor dynamic balance system based on phase matching, which comprises a sensor seat, a front supporting seat, a driving motor, a rear supporting seat and a computer, wherein a transmission shaft is arranged between a front mounting seat and the rear mounting seat; the top of the sensor seat is provided with a photoelectric measurement pipeline pipe, and three photoelectric measurers are arranged on the photoelectric measurement pipeline pipe. The invention uses a phase matching mode to carry out dynamic balance solution, plans the installation position of each rotor, realizes phase adjustment through a set tooth connection mode, can read the phase of any rotor, is simple and reliable in adjustment, realizes overall balance by utilizing the phase adjustment, avoids the labor hour consumption caused by removing materials for many times, and simplifies the operation process of dynamic balance treatment.
Description
Technical Field
The invention relates to a dynamic balance system of a sleeve gear connection multi-disc rotor, in particular to a dynamic balance system of a sleeve gear connection multi-disc rotor based on phase matching.
Background
Internal rotor systems such as aircraft engines and gas turbines are typically multi-disk rotors. As a rotary mechanical system, the dynamic balance quality of the rotor has important influence on the vibration state and the service life of the whole machine. The more the number of the rotor stages of the unit is, the higher the rotating speed is, the higher the dynamic balance processing difficulty is, the requirement of not only meeting the requirement of allowable unbalance amount, but also requiring simple experiment process, short period, less material removal or no weight removal. The dynamic balance processing method which is simpler, more efficient and higher in precision is an effective way for improving the stability of the whole machine and prolonging the service life of the engine.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a phase matching-based sleeve gear connection multi-disk rotor dynamic balance system, which can control the matching phase when the unbalance is installed and simplify the multi-disk rotor dynamic balance processing process.
The purpose of the invention is realized by the following technical scheme:
a dynamic balance system of a sleeve gear connection multi-disk rotor based on phase matching comprises a sensor seat, a front supporting seat, a driving motor, a rear supporting seat and a computer, a front mounting seat is arranged on the front supporting seat, a rear mounting seat is arranged on the rear supporting seat, a transmission shaft is arranged between the front mounting seat and the rear mounting seat, the end of the transmission shaft close to the front mounting seat is a front end, the end of the transmission shaft close to the rear mounting seat is a rear end, an intermediate rotor is arranged between the front mounting seat and the front end of the transmission shaft in a matching way, a bearing is arranged on the rear mounting seat, the rear end of the transmission shaft is arranged in a bearing of the rear mounting seat in a rotating fit manner, a sleeve gear shaft matched with the transmission shaft is arranged in the front mounting seat in a rotating manner, the front end of the front mounting seat far away from the middle rotor is provided with a front end rotor, and the end part of the sleeve gear shaft is arranged in the front end rotor in a matched mode; a belt wheel is mounted on a power output shaft of the driving motor, and the belt wheel of the driving motor is in power transmission connection with the transmission shaft through a transmission belt; the photoelectric measuring device comprises a sensor seat, a photoelectric measuring tube, a signal line, a power line, three photoelectric measurers and a power line, wherein the top of the sensor seat is provided with the photoelectric measuring tube, the photoelectric measuring tube is internally provided with the signal line and the power line, the photoelectric measuring tube is provided with the three photoelectric measurers, the three photoelectric measurers are respectively communicated with the signal line and the power line of the photoelectric measuring tube, the three photoelectric measurers are respectively a first photoelectric measurer, a second photoelectric measurer and a third photoelectric measurer, the first photoelectric measurer is arranged corresponding to a front-end rotor, the second photoelectric measurer is arranged corresponding to a middle rotor, and the third photoelectric measurer is arranged corresponding; the computer is respectively connected with the first photoelectric measurer, the second photoelectric measurer and the third photoelectric measurer in an electric communication mode through lines.
In order to better realize the invention, a bearing matched with the sleeve gear shaft is arranged inside the front mounting seat.
Preferably, a positioning and mounting tooth is arranged between the transmission shaft and the intermediate rotor in a matched manner.
Preferably, a pressing disc is arranged between the tail end rotor and the rear mounting seat, and the pressing disc is used for tightly pressing and connecting the tail end rotor and the transmission shaft.
Preferably, a locking nut corresponding to the bearing on the rear mounting seat is arranged on the outer side of the rear mounting seat.
Preferably, the transmission shaft is close to preceding mount pad one end and has middle rotor installation department, the axial diameter of middle rotor installation department is less than the transmission shaft and removes the axial diameter of middle rotor installation department other parts, location installation tooth configuration is installed and is located between transmission shaft and the middle rotor installation department.
Preferably, the set tooth connection multi-disk rotor dynamic balance system further comprises a base, and the sensor seat, the front supporting seat, the driving motor, the rear supporting seat and the computer are respectively installed on the base.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention uses the phase matching mode to carry out dynamic balance solution, plans the installation position of each rotor, realizes phase adjustment through the way of sleeve tooth connection, can read the phase of any rotor, has simple and reliable adjustment, realizes overall balance by utilizing the existence of unbalance of a single rotor, avoids the man-hour consumption caused by removing materials for many times, and simplifies the operation process of dynamic balance treatment.
Drawings
FIG. 1 is a schematic structural diagram of a dynamic balance system of a socket tooth connected multi-disc rotor based on phase matching;
FIG. 2 is a flow chart of an implementation of a dynamic balancing system of a sleeve gear connection multi-disc rotor based on a phase matching principle;
fig. 3 is a schematic diagram of phase decomposition and balance of each rotor on a balance base plane.
Wherein, the names corresponding to the reference numbers in the drawings are:
1-photoelectric measurer, 2-front end rotor, 3-front mounting seat, 4-set gear shaft, 5-middle rotor, 6-positioning mounting tooth, 7-transmission shaft, 8-tail end rotor, 9-pressing disk, 10-rear mounting seat, 11-locking nut, 12-computer, 13-rear supporting seat, 14-transmission belt, 15-belt wheel, 16-driving motor, 17-base, 18-bearing, 19-front supporting seat and 20-sensor seat.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
examples
As shown in figure 1, a dynamic balance system of a socket-tooth-connected multi-disc rotor based on phase matching comprises a sensor seat 20, a front supporting seat 19, a driving motor 16, a rear supporting seat 13, a computer 12 and a base 17, wherein a front mounting seat 3 is installed on the front supporting seat 19, a rear mounting seat 10 is installed on the rear supporting seat 13, a transmission shaft 7 is installed between the front mounting seat 3 and the rear mounting seat 10, one end of the transmission shaft 7 close to the front mounting seat 3 is a front end, one end of the transmission shaft 7 close to the rear mounting seat 10 is a rear end, a middle rotor 5 is installed between the front mounting seat 3 and the front end of the transmission shaft 7 in a matching manner, a bearing 18 is installed on the rear mounting seat 10, the rear end of the transmission shaft 7 is installed in a rotating and matching manner in the bearing 18 of the rear mounting seat 10, a socket-tooth shaft 4 matched with the transmission shaft 7 is installed in the front mounting seat 3 in a rotating manner, the end of the sleeve gear shaft 4 is arranged in the front end rotor 2 in a matching way. A belt wheel 15 is arranged on a power output shaft of the driving motor 16, and the belt wheel 15 of the driving motor 16 is in power transmission connection with the transmission shaft 7 through a transmission belt 14. Photoelectric measurement pipeline pipe is installed at sensor seat 20 top, inside signal line and the power cord of being equipped with of photoelectric measurement pipeline, install three photoelectric measurement ware 1 on the photoelectric measurement pipeline, three photoelectric measurement ware 1 respectively with the signal line of photoelectric measurement pipeline, the power cord is linked together, three photoelectric measurement ware 1 is first photoelectric measurement ware respectively, the second photoelectric measurement ware, the third photoelectric measurement ware, first photoelectric measurement ware corresponds the setting of front end rotor 2, the setting of second photoelectric measurement ware correspondence middle rotor 5, the setting of third photoelectric measurement ware correspondence tail end rotor 8. The computer 12 is electrically connected to the first, second, and third photoelectric measuring devices through wires. According to the invention, a plurality of sensors (namely a first photoelectric measurer, a second photoelectric measurer and a third photoelectric measurer) are arranged to meet the measurement requirements of a plurality of rotors (namely a front-end rotor 2, a middle rotor 5 and a tail-end rotor 8), the phase information and the axial position of the corresponding rotor are recorded and can be accurately transmitted, and real-time display and guidance are provided for phase matching adjustment; the multiple sensors of the present embodiment collect the phase and axial position of the individual rotor unbalance quantities, respectively, and transmit and display them instantaneously. According to the invention, each sensor (a first photoelectric measurer, a second photoelectric measurer or a third photoelectric measurer) calculates the measured unbalance information of the rotor (the front end rotor 2, the middle rotor 5 or the tail end rotor 8), the phase value of each unbalance of the rotor is used as a solving variable, a balance equation is solved on two balance measuring surfaces, the meshing position of the sleeve teeth is adjusted according to the obtained matching phase value, the dynamic balance test of the whole rotor is directly carried out after the adjustment is finished, and whether the unbalance allowable value is reached is judged. The computer 12 of this embodiment performs a solution of the decomposition balance on the two balance measurement surfaces by using the phase as a variable according to the position information of the unbalance amount of the single rotor, so as to obtain the matching phase value of each rotor.
The invention is characterized in that a front end rotor 2, a middle rotor 5 and a tail end rotor 8 are respectively arranged on a front supporting seat 19 and a rear supporting seat 13 through a front mounting seat 3 and a rear mounting seat 10, built-in sensors of the front supporting seat 19 and the rear supporting seat 13 measure amplitude and frequency information, each photoelectric measurer 1 respectively collects phase position and axial position information of each rotor, the front mounting seat 3 and a tooth type indexing adjusting rotor of a positioning mounting tooth 6 have a phase angle, a driving motor 16 drives a multi-disc rotor system through a belt pulley 15 and a transmission belt 14, the photoelectric measurer 1 collects phase distribution information of unbalance of each rotor part, and transmits the information to a computer 12 together with the front supporting seat 19 and the rear supporting seat 13.
As shown in fig. 1, the front mount 3 is internally provided with a bearing 18 that is engaged with the sleeve gear shaft 4, all of which bearings facilitate the rotation of the sleeve gear shaft 4 within the front mount 3. And a positioning and mounting tooth 6 is arranged between the transmission shaft 7 and the intermediate rotor 5 in a matching way. The sleeve gear shaft 4 has a circumferential indexing function, can change the meshing position between the teeth (namely, the installation phase of the rotor is changed), and realizes the matching of different phases through the joint sleeve gear indexing adjustment among a plurality of rotors. The multi-disc rotor connected by the set of teeth can realize the adjustment and matching of phases among different rotors.
As shown in fig. 1, a pressing disc 9 is disposed between the tail rotor 8 and the rear mounting seat 10, and the pressing disc 9 is used for tightly pressing and connecting the tail rotor 8 and the transmission shaft 7. The outside of the rear mounting seat 10 is provided with a lock nut 11 corresponding to the bearing 18 on the rear mounting seat 10.
As shown in fig. 1, one end of the transmission shaft 7 close to the front mounting seat 3 is provided with an intermediate rotor 5 mounting part, the axial diameter of the intermediate rotor 5 mounting part is smaller than that of the transmission shaft 7 except the other part of the intermediate rotor 5 mounting part, and the positioning mounting teeth 6 are configured and arranged between the transmission shaft 7 and the intermediate rotor mounting part. The preferred sensor mount 20, front support 19, drive motor 16, and rear support 13 of the present invention are mounted on the base 17, respectively, and the computer 12 may be placed on the base 17.
As shown in fig. 2 and 3, when the single component is measured before assembly, the position information of the unbalance amount of the rotor is calibrated, the unbalance amount information of the whole rotor after assembly is input into the computer 12, the computer 12 calculates the measured unbalance information of the rotor, each phase value is taken as a solving variable, a balance equation is solved on the front and rear bearing surfaces, as shown in fig. 3, the plane of the eccentric mass determined according to the single component balance measurement is located, and each eccentric mass m is calibrated1、m2、…、miRadial direction r1、r2、…、riAzimuth angle theta1、θ2、…、θi. The front and the rear supports are balance base planes I and II to balance the inertia force P1、P2、…、PiDecomposed to equilibrium base plane with component forces of P1I、P2I、…、PiIAnd P1II、P2II、…、PiIIThe balance weight m is arranged on the base surfaces I and III、mIIRadial direction thereof is rI、rIIAzimuth angle thetaI、θII(ii) a Determining the distance L between the two balance bases I, II and the distance L between each eccentric mass and the balance base II1、l2、…、liDistance L-L to equilibrium base I1、L-l2、…、L-li. The mechanical conditions of dynamic balance are as follows: and (3) force balance and moment balance to obtain a dynamic balance equation of balance base planes I and II:
respectively projecting the dynamic balance equations of the balance base planes I and II in the directions of x and y, and calculating mI、mIIOr its minimum value and theta at the minimum valueI、θII：
Adjusting the meshing position of the sleeve teeth according to the obtained matching phase value, driving the sleeve teeth by a driving motor 16, a belt wheel 15 and a transmission belt 14 after the adjustment is finished, directly carrying out dynamic balance test on the whole rotor, and judging whether the balance quality requirement is realized or not through a test; if the rotor unbalance reaches the standard, the rotor unbalance is qualified, if the rotor unbalance does not reach the standard, any rotor unbalance is processed, and the steps are carried out after the rotor unbalance is recalibrated until the rotor unbalance reaches the standard.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides a set tooth connects multi-disk rotor dynamic balance system based on phase matching which characterized in that: comprises a sensor seat (20), a front supporting seat (19), a driving motor (16), a rear supporting seat (13) and a computer (12), wherein the front supporting seat (19) is provided with a front mounting seat (3), the rear supporting seat (13) is provided with a rear mounting seat (10), a transmission shaft (7) is arranged between the front mounting seat (3) and the rear mounting seat (10), one end of the transmission shaft (7) close to the front mounting seat (3) is a front end, one end of the transmission shaft (7) close to the rear mounting seat (10) is a rear end, an intermediate rotor (5) is arranged between the front mounting seat (3) and the front end of the transmission shaft (7) in a matching manner, positioning mounting teeth (6) are arranged between the transmission shaft (7) and the intermediate rotor (5) in a matching manner, a bearing is arranged on the rear mounting seat (10), and the rear end of the transmission shaft (7) is arranged in a rotating matching manner in the bearing of the rear mounting seat (, a sleeve gear shaft (4) which is matched and connected with the transmission shaft (7) is rotatably arranged in the front mounting seat (3), a bearing which is matched with the sleeve gear shaft (4) is arranged in the front mounting seat (3), a front end rotor (2) is arranged at the front end, far away from the middle rotor (5), of the front mounting seat (3), and the end part of the sleeve gear shaft (4) is matched and arranged in the front end rotor (2); a belt wheel (15) is mounted on a power output shaft of the driving motor (16), and the belt wheel (15) of the driving motor (16) is in power transmission connection with the transmission shaft (7) through a transmission belt (14); the sensor base (20), the front supporting base (19), the driving motor (16) and the rear supporting base (13) are respectively arranged on the base (17), and the computer (12) is placed on the base (17) in a matching mode; the photoelectric measuring tube is installed at the top of the sensor seat (20), a signal line and a power line are arranged inside the photoelectric measuring tube, three photoelectric measuring devices (1) are installed on the photoelectric measuring tube, the three photoelectric measuring devices (1) are respectively communicated with the signal line and the power line of the photoelectric measuring tube, the three photoelectric measuring devices (1) are respectively a first photoelectric measuring device, a second photoelectric measuring device and a third photoelectric measuring device, the first photoelectric measuring device is arranged corresponding to the front-end rotor (2), the second photoelectric measuring device is arranged corresponding to the middle rotor (5), the third photoelectric measuring device is arranged corresponding to the tail-end rotor (8), a pressing disc (9) is arranged between the tail-end rotor (8) and the rear mounting seat (10), and the pressing disc (9) is used for tightly pressing and connecting the tail-end rotor (8) and the transmission shaft (7); the computer (12) is respectively in electric communication connection with the first photoelectric measurer, the second photoelectric measurer and the third photoelectric measurer through lines;
the phase decomposition and balance steps of each rotor on the balance base plane are as follows:
when single-component balance measurement is carried out before assembly, the position information of the unbalance amount of the rotor is calibrated, the unbalance amount information of the whole rotor after assembly is input into a computer (12), the computer (12) calculates the measured unbalance information of the rotor, each phase value is used as a solving variable, balance equations are solved on a front bearing surface and a rear bearing surface, the plane of an eccentric mass is determined according to the single-component balance measurement, and each eccentric mass m is calibrated1、m2、…、miRadial direction r1、r2、…、riAzimuth angle theta1、θ2、…、θi(ii) a The front and the rear supports are balance base planes I and II to balance the inertia force P1、P2、…、PiDecomposed to equilibrium base plane with component forces of P1I、P2I、…、PiIAnd P1II、P2II、…、PiIIThe balance weight m is arranged on the base surfaces I and III、mIIRadial direction thereof is rI、rIIAzimuth angle thetaI、θII(ii) a Determining the distance L between the two balance bases I, II and the distance L between each eccentric mass and the balance base II1、l2、…、liDistance L-L to equilibrium base I1、L-l2、…、L-li(ii) a The mechanical conditions of dynamic balance are as follows: and (3) force balance and moment balance to obtain a dynamic balance equation of balance base planes I and II:
respectively projecting the dynamic balance equations of the balance base planes I and II in the directions of x and y, and calculating mI、mIIOr its minimum value and theta at the minimum valueI、θII：
Adjusting the meshing position of the sleeve teeth according to the obtained matching phase value, driving the sleeve teeth by a driving motor (16), a belt wheel (15) and a transmission belt (14) after the adjustment is finished, directly carrying out dynamic balance test on the whole rotor, and judging whether the balance quality requirement is met or not through a test; if the rotor unbalance reaches the standard, the rotor unbalance is qualified, if the rotor unbalance does not reach the standard, any rotor unbalance is processed, and the steps are carried out after the rotor unbalance is recalibrated until the rotor unbalance reaches the standard.
2. A phase matching based set tooth connected multi-disc rotor dynamic balance system as claimed in claim 1, wherein: and a locking nut (11) corresponding to a bearing on the rear mounting seat (10) is arranged on the outer side of the rear mounting seat (10).
3. A phase matching based set tooth connected multi-disc rotor dynamic balance system as claimed in claim 1, wherein: transmission shaft (7) are close to preceding mount pad (3) one end and have middle rotor (5) installation department, the axial diameter of middle rotor (5) installation department is less than transmission shaft (7) and removes the axial diameter of middle rotor (5) installation department other parts, location installation tooth (6) configuration installation is located between transmission shaft (7) and the middle rotor installation department.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711084720.0A CN107870064B (en) | 2017-11-07 | 2017-11-07 | Phase matching-based dynamic balance system for multi-disc rotor connected by sleeve teeth |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711084720.0A CN107870064B (en) | 2017-11-07 | 2017-11-07 | Phase matching-based dynamic balance system for multi-disc rotor connected by sleeve teeth |
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| CN107870064A CN107870064A (en) | 2018-04-03 |
| CN107870064B true CN107870064B (en) | 2020-02-18 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU506772A1 (en) * | 1971-10-25 | 1976-03-15 | Предприятие П/Я В-2988 | Device for dynamic balancing of high-speed rotors in the assembled product |
| US4608867A (en) * | 1984-03-09 | 1986-09-02 | I E P "N. Belopitov" | Method for the dynamic balancing of rotating machines in assembled condition |
| CN101158614A (en) * | 2007-11-15 | 2008-04-09 | 中北大学 | High speed chief axis on-line dynamic poise device |
| CN101587004A (en) * | 2009-06-16 | 2009-11-25 | 西安交通大学 | Online automatic balance executing device of rotor of machine rotating at high speed |
| CN201488859U (en) * | 2009-07-31 | 2010-05-26 | 湖南宇航科技有限公司 | Novel dynamic balance experiment table |
| CN202420768U (en) * | 2012-01-18 | 2012-09-05 | 山东电力研究院 | Field dynamic balance measuring device for fan at generating station boiler side |
| CN105466636A (en) * | 2014-08-07 | 2016-04-06 | 陈晓军 | Dynamic balance tester for motor rotor |
-
2017
- 2017-11-07 CN CN201711084720.0A patent/CN107870064B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU506772A1 (en) * | 1971-10-25 | 1976-03-15 | Предприятие П/Я В-2988 | Device for dynamic balancing of high-speed rotors in the assembled product |
| US4608867A (en) * | 1984-03-09 | 1986-09-02 | I E P "N. Belopitov" | Method for the dynamic balancing of rotating machines in assembled condition |
| CN101158614A (en) * | 2007-11-15 | 2008-04-09 | 中北大学 | High speed chief axis on-line dynamic poise device |
| CN101587004A (en) * | 2009-06-16 | 2009-11-25 | 西安交通大学 | Online automatic balance executing device of rotor of machine rotating at high speed |
| CN201488859U (en) * | 2009-07-31 | 2010-05-26 | 湖南宇航科技有限公司 | Novel dynamic balance experiment table |
| CN202420768U (en) * | 2012-01-18 | 2012-09-05 | 山东电力研究院 | Field dynamic balance measuring device for fan at generating station boiler side |
| CN105466636A (en) * | 2014-08-07 | 2016-04-06 | 陈晓军 | Dynamic balance tester for motor rotor |
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