阅读说明：本技术 风力发电机转速测定时传动轴的径跳调整装置及调整方法 (Radial run-out adjusting device and method for transmission shaft during wind driven generator rotation speed measurement ) 是由 常军 苗鑫 李海 杨允亨 宋建成 于 2020-05-21 设计创作，主要内容包括：本发明公开了一种风力发电机转速测定时传动轴的径跳调整装置及调整方法,解决了现有的调整方法存在的操作难度大,调整时间长和容易损伤传动轴的缺陷的问题。在轴套(2)的外端侧面上连接有支撑圆环(5),在支撑圆环的外侧面上等间隔弧度地设置有三个悬臂凸起(8),在每个悬臂凸起(8)上均设置有一个带螺纹的顶丝通孔(9),在每个带螺纹的顶丝通孔(9)中均螺接有一个顶丝(10),在三个顶丝(10)之间设置有测试用传动轴(11),测试用连接轴的内侧端与风力发电机(21)的输出轴轴端(1)连接在一起,测试用连接轴的外侧端与编码器(13)的内轴连接；在测试用连接轴上顶接有百分表(12)。保证了点机装配品质的提高。(The invention discloses a radial run-out adjusting device and method for a transmission shaft during wind driven generator rotation speed measurement, and solves the problems of high operation difficulty, long adjusting time and easiness in damaging the transmission shaft in the conventional adjusting method. The lateral surface of the outer end of the shaft sleeve (2) is connected with a supporting ring (5), the outer lateral surface of the supporting ring is provided with three cantilever bulges (8) at equal intervals in an arc manner, each cantilever bulge (8) is provided with a threaded jackscrew through hole (9), a jackscrew (10) is screwed in each threaded jackscrew through hole (9), a test transmission shaft (11) is arranged among the three jackscrews (10), the inner side end of the test connection shaft is connected with the output shaft end (1) of the wind driven generator (21), and the outer side end of the test connection shaft is connected with the inner shaft of the encoder (13); a dial indicator (12) is connected with the connecting shaft for testing in a propping manner. The improvement of the assembling quality of the point machine is ensured.)

1. A radial run-out adjusting device of a transmission shaft during the rotation speed measurement of a wind driven generator comprises the wind driven generator (21), a transmission shaft (11) for testing and an encoder (13), wherein a shaft sleeve (2) is arranged on an output shaft end (1) of the wind driven generator (21), a process threaded hole (6) is arranged on the side surface of the outer end of the shaft sleeve (2), the radial run-out adjusting device is characterized in that a supporting circular ring (5) is connected onto the side surface of the outer end of the shaft sleeve (2), a supporting circular ring connecting screw (7) is arranged between the supporting circular ring (5) and the process threaded hole (6), three cantilever bulges (8) are arranged on the outer side surface of the supporting circular ring (5) at equal intervals in radian, a jackscrew through hole (9) with threads is arranged on each cantilever bulge (8), a jackscrew (10) is screwed in each jackscrew through hole (9) with threads, the transmission shaft (11) for testing is arranged among the three, the inner side end of the testing transmission shaft (11) is connected with the output shaft end (1) of the wind driven generator (21), and the outer side end of the testing transmission shaft (11) is connected with the inner shaft of the encoder (13); the transmission shaft (11) for testing is connected with a dial indicator (12) in a propping manner.

2. The radial run-out adjusting device of the transmission shaft for the wind driven generator speed measurement according to claim 1, wherein the test transmission shaft (11) is cylindrical and funnel-shaped in shape, the large end (19) of the test transmission shaft (11) is connected with the output shaft end (1) of the wind driven generator, the small end (20) of the test transmission shaft (11) is connected with the inner shaft of the encoder (13), and the inner end of the jackscrew (10) is abutted against the outer side surface of the reinforcing rib on the large end (19) of the test transmission shaft (11); an insulating sleeve (3) is arranged on the shaft sleeve (2), and a collecting ring (4) is arranged on the insulating sleeve (3).

3. The method for adjusting the radial run-out adjustment device of the transmission shaft for measuring the rotational speed of the wind turbine as claimed in claim 2, comprising the steps of:

firstly, connecting a support ring (5) to the side surface of the outer end of a shaft sleeve (2) through a support ring connecting screw (7), and enabling the central axis of the support ring (5) to be superposed with the central axis of an output shaft of a wind driven generator;

secondly, screwing a jackscrew (10) into a jackscrew through hole (9) on the cantilever bulge (8), screwing a second jackscrew (16) into a second jackscrew hole (14) on a second cantilever bulge (17), and screwing a third jackscrew (21) into a third jackscrew hole (15) on a third cantilever bulge (18);

thirdly, arranging the large end (19) of the transmission shaft (11) for testing among the three jackscrews;

fourthly, adjusting the jackscrew (10), the second jackscrew (16) and the third jackscrew (21) respectively, and observing the concentricity of the transmission shaft (11) for testing and the output shaft of the wind driven generator through a dial indicator (12) until the radial runout of the transmission shaft (11) for testing is less than or equal to 0.04 mm;

fifthly, fixedly connecting the large end (19) of the transmission shaft (11) for testing with the shaft end (1) of the output shaft of the wind driven generator, and then connecting the small end (20) of the transmission shaft (11) for testing with the inner shaft of the encoder (13);

and sixthly, testing the rotating speed of the wind driven generator through an encoder (13).

Technical Field

The invention relates to a radial run-out adjusting device of a transmission shaft, in particular to an adjusting device and an adjusting method for the radial run-out of the transmission shaft during the rotation speed measurement of a wind driven generator.

Background

The wind driven generator is manufactured and then leaves a factory, the rotating speed of the motor needs to be tested, and the wind driven generator is manufactured through an encoder in the prior art; during testing, an inner shaft of the encoder is mechanically connected with an output shaft of the wind driven generator through a testing transmission shaft, the wind driven generator rotates, an output shaft of the motor can drive the inner shaft of the encoder to synchronously rotate through the testing transmission shaft, and the accurate rotating speed of the motor can be measured through signal conversion of a photoelectric sensor in the encoder; because the inner shaft of the encoder is connected with the output shaft of the tested motor through the test transmission shaft on site, mechanical connection errors exist in the field connection, the concentricity of the test transmission shaft and the output shaft of the wind driven generator is inconsistent, and when the test transmission shaft rotates along with the output shaft of the motor, the radial jump phenomenon can occur; the encoder belongs to a precision measuring instrument, the radial run-out of a transmission shaft for testing, which is connected with an inner shaft of the encoder, when rotating cannot be larger than 0.04 mm, if the radial run-out exceeds the standard, the testing precision of the rotating speed of the motor can be influenced, and the encoder is easily damaged in the testing process; based on the requirements, after the transmission shaft for the field test is connected with the inner shaft of the encoder, an operator generally uses a dial indicator to test the concentricity of the transmission shaft for the test, uses a copper bar to knock the transmission shaft for the test according to the concentricity test result, and finally makes the radial run-out of the transmission shaft for the test when rotating not more than 0.04 mm through repeated operation, and then determines the rotating speed of the motor; the method has the defects of high difficulty in field adjustment operation, long adjustment time and easiness in damaging the transmission shaft, and is not suitable for batch production and detection of products.

Disclosure of Invention

The invention provides a radial run-out adjusting device and method for a transmission shaft during wind driven generator rotation speed measurement, and solves the technical problems of high operation difficulty, long adjusting time and easiness in damaging the transmission shaft in the conventional adjusting method.

The invention solves the technical problems by the following technical scheme:

the general concept of the invention is: the shaft end of an output shaft of the wind driven generator is sleeved with a shaft sleeve provided with a slip ring, a support frame ring is fixed on the outer end face of the shaft sleeve and is in threaded connection with the outer end face of the shaft sleeve, the central axis of the support frame ring is superposed with the central axis of the output shaft of the motor, three cantilever bulges are arranged on the concentric circumference of the outer side face of the support frame ring at equal intervals in an arc manner, each cantilever bulge is in threaded connection with a jack screw pointing to the central axis of the output shaft of the motor, a test transmission shaft is arranged among the three jack screws, the position adjustment of the test transmission shaft is realized by respectively adjusting the ejection lengths of the three jack screws, the central axis of the test transmission shaft is superposed with the central axis of the output shaft of the motor as far as possible, namely the radial runout of the test transmission shaft is smaller; finally, connecting the outer end of the transmission shaft for testing with the inner shaft of the encoder; the technical scheme has simple and easy field operation and high test efficiency, and is suitable for field batch test.

A radial run-out adjusting device of a transmission shaft during the rotation speed measurement of a wind driven generator comprises the wind driven generator, the transmission shaft for testing and an encoder, a shaft sleeve is arranged at the shaft end of an output shaft of the wind driven generator, a process threaded hole is arranged on the side surface of the outer end of the shaft sleeve, a supporting ring is connected on the lateral surface of the outer end of the shaft sleeve, a supporting ring connecting screw is arranged between the supporting ring and the technical threaded hole, three cantilever bulges are arranged on the outer side surface of the supporting ring at equal intervals in radian, each cantilever bulge is provided with a jackscrew through hole with screw thread, a jackscrew is screwed in each jackscrew through hole with threads, a test transmission shaft is arranged among the three jackscrews, the inner side end of the test transmission shaft is connected with the shaft end of an output shaft of the wind driven generator, and the outer side end of the test transmission shaft is connected with an inner shaft of the encoder; the transmission shaft for testing is connected with a dial indicator in a propping manner.

The testing transmission shaft is cylindrical and funnel-shaped, the large end of the testing transmission shaft is connected with the shaft end of the output shaft of the wind driven generator, the small end of the testing transmission shaft is connected with the inner shaft of the encoder, and the inner side end of the jackscrew is abutted to the outer side face of the reinforcing rib on the large end of the testing transmission shaft; an insulating sleeve is arranged on the shaft sleeve, and a collecting ring is arranged on the insulating sleeve.

A method for adjusting a radial run-out adjusting device of a transmission shaft during the measurement of the rotating speed of a wind driven generator comprises the following steps:

firstly, connecting a support ring to the side surface of the outer end of a shaft sleeve through a support ring connecting screw, and enabling the central axis of the support ring to be superposed with the central axis of an output shaft of a wind driven generator;

secondly, screwing a jackscrew into a jackscrew through hole on the cantilever bulge, screwing a second jackscrew into a second jackscrew hole on the second cantilever bulge, and screwing a third jackscrew into a third jackscrew hole on a third cantilever bulge;

thirdly, arranging the large end of the transmission shaft for testing among the three jackscrews;

fourthly, adjusting the jackscrew, the second jackscrew and the third jackscrew respectively, and observing the concentricity of the test transmission shaft and the output shaft of the wind driven generator through a dial indicator until the radial runout of the test transmission shaft is less than or equal to 0.04 mm;

fifthly, fixedly connecting the large end of the transmission shaft for testing with the shaft end of the output shaft of the wind driven generator, and then connecting the small end of the transmission shaft for testing with the inner shaft of the encoder;

and sixthly, testing the rotating speed of the wind driven generator through the encoder.

The tool is provided for adjusting the radial runout of the transmission shaft in the rotating speed testing process of the wind driven generator manufacturer when the motor leaves the factory, so that the labor intensity of field operators is reduced, the operation steps are reduced, the operation efficiency is improved, and the improvement of the assembly quality of the point machine is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view taken along line A-A in FIG. 1;

FIG. 3 is a schematic view of the structure of the support ring 5 of the present invention;

fig. 4 is a schematic view of the structure of the support ring 5 of the present invention in a right-hand direction;

fig. 5 is a schematic structural view of the test drive shaft 11 according to the present invention.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings:

a diameter jump adjusting device of a transmission shaft during the rotation speed measurement of a wind driven generator comprises a wind driven generator 21, a transmission shaft 11 for a test and an encoder 13, wherein a shaft sleeve 2 is arranged on an output shaft end 1 of the wind driven generator 21, a process threaded hole 6 is arranged on the outer end side surface of the shaft sleeve 2, a support ring 5 is connected on the outer end side surface of the shaft sleeve 2, a support ring connecting screw 7 is arranged between the support ring 5 and the process threaded hole 6, three cantilever bulges 8 are arranged on the outer side surface of the support ring 5 at equal intervals in radian, a threaded jackscrew through hole 9 is arranged on each cantilever bulge 8, a jackscrew 10 is screwed in each threaded jackscrew through hole 9, a transmission shaft 11 for a test is arranged among the three jackscrews 10, the inner side end of the transmission shaft 11 for a test is connected with the output shaft end 1 of the wind driven generator 21, the outer end of the transmission shaft 11 for testing is connected with the inner shaft of the encoder 13; the dial indicator 12 is connected to the transmission shaft 11 for testing in a propping mode, the radial runout amount of the transmission shaft 11 for testing is detected through the dial indicator 12, and finally the radial runout amount is adjusted to meet the requirement of the test specification.

The test transmission shaft 11 is cylindrical and funnel-shaped, the large end 19 of the test transmission shaft 11 is connected with the output shaft end 1 of the wind driven generator, the small end 20 of the test transmission shaft 11 is connected with the inner shaft of the encoder 13, and the inner side end of the jackscrew 10 is abutted to the outer side face of the reinforcing rib on the large end 19 of the test transmission shaft 11; an insulating sleeve 3 is arranged on the shaft sleeve 2, and a collecting ring 4 is arranged on the insulating sleeve 3.

A method for adjusting a radial run-out adjusting device of a transmission shaft during the measurement of the rotating speed of a wind driven generator comprises the following steps:

firstly, connecting a support ring 5 to the side surface of the outer end of the shaft sleeve 2 through a support ring connecting screw 7, and enabling the central axis of the support ring 5 to be superposed with the central axis of an output shaft of the wind driven generator;

secondly, screwing the jackscrew 10 into the jackscrew through hole 9 on the cantilever bulge 8, screwing the second jackscrew 16 into the second jackscrew hole 14 on the second cantilever bulge 17, and screwing the third jackscrew 21 into the third jackscrew hole 15 on the third cantilever bulge 18;

thirdly, arranging the large end 19 of the transmission shaft 11 for testing among the three jackscrews;

fourthly, adjusting the jackscrew 10, the second jackscrew 16 and the third jackscrew 21 respectively, and observing the concentricity of the transmission shaft 11 for testing and the output shaft of the wind driven generator through a dial indicator 12 until the radial runout of the transmission shaft 11 for testing is less than or equal to 0.04 mm;

fifthly, fixedly connecting the large end 19 of the transmission shaft 11 for testing with the shaft end 1 of the output shaft of the wind driven generator, and then connecting the small end 20 of the transmission shaft 11 for testing with the inner shaft of the encoder 13;

and sixthly, testing the rotating speed of the wind driven generator through the encoder 13.