CN214373338U - A test device for mechanical properties of wind turbine slewing bearing - Google Patents
A test device for mechanical properties of wind turbine slewing bearing Download PDFInfo
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- CN214373338U CN214373338U CN202120334488.7U CN202120334488U CN214373338U CN 214373338 U CN214373338 U CN 214373338U CN 202120334488 U CN202120334488 U CN 202120334488U CN 214373338 U CN214373338 U CN 214373338U
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Abstract
本实用新型公开了一种风电转盘轴承力学性能试验装置，包括风电转盘轴承力学性能试验装置，包括机架、连接件和驱动系统，机架的底板上设有轨道，轨道上设有基座，待试验的转盘轴承装于基座上，连接件的下端通过法兰盘装于转盘轴承上，连接件的上端装有加载轴承，加载轴承上装有加载板，加载板连接有加载油缸；驱动系统包括伺服电机、变速器和输出齿轮，输出齿轮与固定在连接件中部的齿圈啮合。加载油缸包括两个倾覆力矩液压缸、一个轴向液压缸和一个径向液压缸。具有径向力、轴向力、倾覆力矩的复合加载和检测功能，模拟了实际工况，能获得更为准确的试验数据，为轴承的设计制造检测提供了试验设备。
The utility model discloses a mechanical performance test device of a wind power slewing wheel bearing, comprising a wind power slewing wheel bearing mechanical performance test device, including a frame, a connecting piece and a drive system. A track is arranged on the bottom plate of the frame, and a base is arranged on the track. The slewing bearing to be tested is mounted on the base, the lower end of the connecting piece is mounted on the slewing bearing through the flange, the upper end of the connecting piece is equipped with a loading bearing, the loading bearing is equipped with a loading plate, and the loading plate is connected with a loading cylinder; the drive system It includes a servo motor, a transmission and an output gear, which meshes with a ring gear fixed in the middle of the connecting piece. The loading cylinder includes two overturning moment hydraulic cylinders, an axial hydraulic cylinder and a radial hydraulic cylinder. It has the composite loading and detection functions of radial force, axial force and overturning moment, simulates the actual working conditions, can obtain more accurate test data, and provides test equipment for the design, manufacture and inspection of bearings.
Description
Technical Field
The utility model relates to a wind-powered electricity generation carousel bearing detects the technique, especially relates to a wind-powered electricity generation carousel bearing mechanical properties test device.
Background
The use of the wind power turntable bearing is indispensable for wind power generation equipment at present, and has great influence on the use efficiency of the wind power generation equipment. However, the equipment for detecting the wind power turntable bearing cannot completely simulate the real working condition, the performance and service life of the large wind power turntable bearing cannot be detected at home and abroad, and the performance and service life of the large wind power turntable bearing can only be known in actual operation, but the requirements of merchants cannot be met. And the actual operating mode of wind-powered electricity generation carousel bearing is more complicated, and the bearing receives load such as very big overturning moment, axial force, radial force.
At present, no major breakthrough is made in the aspect of simulation and detection of the actual working condition of the turntable bearing. Therefore, relevant equipment is needed to simulate the actual operation condition to detect the service life and the performance of the bearing, and the service life and the performance of the merchant are further met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wind-powered electricity generation carousel bearing mechanical properties test device.
The utility model aims at realizing through the following technical scheme:
the utility model discloses a wind-powered electricity generation carousel bearing mechanical properties test device, including frame, connecting piece and actuating system, be equipped with the track on the bottom plate of frame, be equipped with the base on the track, the carousel bearing of waiting to test is adorned on the base, the lower extreme of connecting piece is adorned on the carousel bearing through the ring flange, the upper end of connecting piece is equipped with the loading bearing, loading bearing is equipped with the loading board, the loading board is connected with the loading hydro-cylinder;
the driving system comprises a servo motor, a speed changer and an output gear, and the output gear is meshed with a gear ring fixed in the middle of the connecting piece.
By the above-mentioned the technical scheme provided by the utility model, the embodiment of the utility model provides a wind-powered electricity generation carousel bearing mechanical properties test device has radial force, axial force, the compound loading of the moment of toppling and detects the function, has still realized bearing inner race and has rotated and the inner race loading, and the loading of experimental platform has been avoided before and the rotation is not on same bearing ring, has simulated operating condition, can obtain more accurate test data, has provided test equipment for the manufacturing and designing of bearing detects, and the development to the detection technology of bearing has great meaning.
Drawings
Fig. 1 is the embodiment of the utility model provides a wind-powered electricity generation carousel bearing mechanical properties test device's schematic structure diagram.
Fig. 2 is a schematic partial sectional view of an embodiment of the present invention.
Fig. 3 is a schematic view of a driving system according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of the force applied to the embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
The utility model discloses a wind-powered electricity generation carousel bearing mechanical properties test device, the concrete implementation mode of its preferred is:
the test device comprises a rack, a connecting piece and a driving system, wherein a rail is arranged on a bottom plate of the rack, a base is arranged on the rail, a turntable bearing to be tested is arranged on the base, the lower end of the connecting piece is arranged on the turntable bearing through a flange plate, a loading bearing is arranged at the upper end of the connecting piece, a loading plate is arranged on the loading bearing, and the loading plate is connected with a loading oil cylinder;
the driving system comprises a servo motor, a speed changer and an output gear, and the output gear is meshed with a gear ring fixed in the middle of the connecting piece.
The loading oil cylinder comprises two overturning moment hydraulic cylinders, an axial hydraulic cylinder and a radial hydraulic cylinder, and the two overturning moment hydraulic cylinders are respectively arranged on two sides of the axial hydraulic cylinder.
The lower ends of the two overturning moment hydraulic cylinders and the axial hydraulic cylinder are connected with the top surface of the loading plate through connecting lugs, and the upper ends of the two overturning moment hydraulic cylinders and the axial hydraulic cylinder are connected with a top plate of the rack;
one end of the radial hydraulic cylinder is connected with the side face of the loading plate through a connecting lug, and the other end of the radial hydraulic cylinder is connected with a side plate of the rack.
The turntable bearing inner ring is connected with the flange plate, the outer ring is fixed on the base, and the flange plate is detachably arranged on the connecting piece.
The upper end of the connecting piece is connected with the loading bearing inner ring, and the loading bearing outer ring is connected with the loading plate.
And a sensor is arranged between the connecting piece and the flange.
The utility model discloses a wind-powered electricity generation carousel bearing mechanical properties test device has the combined loading and the detection function of radial force, axial force, the moment of toppling to this test device has still realized bearing inner race rotation and inner race loading, and the loading of having avoided preceding experiment platform is not on same bearing ring with the rotation, has simulated operating condition, can obtain more accurate test data, provides test equipment for the manufacturing and designing of bearing detects, has great meaning to the development of the detection technique of bearing.
The loading plate is provided with an overturning moment by the hydraulic cylinders on two sides of the loading plate, stretching and retracting and radial hydraulic cylinders, namely, the overturning moment can be only controlled, and the radial hydraulic cylinders are not loaded:
M＝F×d+Fr×h
M＝F×d
the axial force of the loading plate is realized by an axial hydraulic cylinder, and the radial force is realized by loading of a radial hydraulic cylinder;
because the loading bearing can cause certain errors, the sensor can be arranged between the connecting piece and the flange plate, and the loading data of the turntable bearing can be ensured to be reliable.
The utility model discloses a wind-powered electricity generation carousel bearing mechanical properties test device adopts the operating condition of above-mentioned technique complete simulation bearing, can realize carousel bearing's limit and rotate the limit loading, can realize the controllability of loading power, realizes loading under different rotational speeds. Because the design adopts the turntable bearing to be horizontally placed, the installation height can be reduced, the overhead operation of workers is reduced, the operation is simple and convenient, the test cost is reduced, and the data accuracy is ensured. Therefore, the testing device has expandability and can be used for system tests of wind power bearings with different diameters.
The specific embodiment is as follows:
as shown in fig. 1, for the utility model discloses wind-powered electricity generation carousel bearing mechanical properties test device's schematic structure, including frame 1, base 2, carousel bearing 3, ring flange 4, connecting piece 5, ring gear 6, load bearing 7, load plate 8, radial pneumatic cylinder 16, axial hydraulic cylinder 12, overturning moment pneumatic cylinder 10(14), ear seat 9, ear seat 11, ear seat 13, ear seat 15 wherein:
the driving system comprises a servo motor 18, a speed changer 19, an output gear 20 and a gear ring 6, wherein the servo motor 18 outputs a certain rotating speed through the speed changer 19 to drive the gear, so that the connecting piece 5 rotates to drive the turntable bearing 3 to rotate; the meshing clearance between the output gear 20 and the gear ring 6 is less than or equal to 0.1 mm; the gear ring 6 is connected with the connecting piece 5 in a welding mode; one end of the radial hydraulic cylinder 16 is fixed on the frame 1, the other end of the radial hydraulic cylinder is connected with the lug seat 15 through hinge joint, the lug seat 15 is fixed on the loading plate through bolts and is loaded on the lug seat 15 through the expansion and contraction of the radial hydraulic cylinder 16, the loading of radial force is realized, and the radial force output by the hydraulic cylinder is adjustable according to the requirement; one end of the axial hydraulic cylinder 12 is fixed on the frame 1, the other end of the axial hydraulic cylinder is connected with the lug seat 11 through a hinge, the lug seat 11 is installed on the loading plate 8 through a bolt connection, and the connecting piece 5 and the axial hydraulic cylinder are installed on the same axis; one end of each overturning moment hydraulic cylinder 10(14) is fixed on the frame 1, the other end of each overturning moment hydraulic cylinder is connected with the lug seats 9 and 13 together through hinges, the lug seats 9 and 13 are fixed on the loading plate through bolts, one of the two overturning moment hydraulic cylinders extends, and the other of the two overturning moment hydraulic cylinders retracts, so that the loading of the overturning moment is realized; the outer ring of the loading bearing 7 is connected and installed on the loading plate 8 through a bolt, and the inner ring of the loading bearing 7 is connected with the connecting piece 5 through a bolt; the lower end of the connecting piece 5 is connected with the flange plate 4 through a bolt; the flange plate 4 is connected with the inner ring of the turntable bearing 3 through bolts; the outer ring of the turntable bearing 3 is connected with the base 2 through a bolt; the base 2 is arranged on the frame 1;
two rails 17 are arranged between the base 2 and the frame 1, and the turntable bearing is replaced through the movement of the base 2;
the mounting step of the turntable bearing 3 is as follows: step 1, the hinge between the radial hydraulic cylinder 16 and the lug seat 15 is disconnected, and the radial hydraulic cylinder 9 is contracted; step 2, simultaneously contracting the axial hydraulic cylinder 12 and the overturning moment hydraulic cylinder 10 and 14, and simultaneously lifting the loading plate 8, the loading bearing 7 and the connecting piece 5; step 3, pushing the base 2 out along the rail 17; step 4, mounting the outer ring of the turntable bearing 3 on the base 2 by using bolts; step 5, selecting a matched flange plate 4 and installing the flange plate on the inner ring of the bearing by using bolts; step 5, restoring the base 2 to the original position along the track 17 by using a positioning pin; step 6, restoring the axial hydraulic cylinder 12 and the overturning moment hydraulic cylinder 10(14) to the original positions; step 7, connecting the flange plate 4 with the connecting piece 5 through bolts; step 8, the radial hydraulic cylinder 16 returns to the original position to complete the hinge connection of the lug seat 15 and the hydraulic cylinder; and 9, debugging the loading device after the installation is finished, and preparing for a test.
Fig. 2 is a partial cross-sectional view of the test stand, which illustrates the connection of the base 2 to the turntable bearing 3 and the connection of the connecting member 5 to the flange plate 4, and the connection of the connecting member 5 to the load plate 8, taking a double-row tapered roller bearing as an example.
Fig. 3 is a schematic diagram of a driving system, in which 18 is a servo motor for providing power, 19 is a transmission for providing different rotating speeds for the turntable bearing, and 20 is an output gear which is meshed with the gear ring 6 and transmits the power to the connecting piece 5 to drive the turntable bearing to rotate, so as to achieve the purpose of simulating the rotation of the wind power bearing.
Fig. 4 is a force diagram of a test stand in which the overturning moment is:
M＝F×d+Fr×h
M＝F×d
the loading plate is composed of two parts, so that the radial force is determined firstly when the overturning moment is added to the loading plate, and then the force of the overturning moment hydraulic cylinder is determined. The axial force is:
Fshaft＝Fa+G
The axial force is formed by the force of an axial hydraulic cylinder and the gravity of a loading plate, a roller and a flange plate in the test bed.
The loading hydraulic cylinders are respectively controlled by different hydraulic loops, and axial force, radial force and overturning moment can be applied independently or together;
the torque of the turntable bearing can be obtained according to the rotating speed of the output gear and the output power of the servo motor:
the mechanical property test device for the wind power turntable bearing can test various wind power bearings with different diameters. The working principle is as follows: the servo motor is started, the gear drives the connecting piece 5 to rotate, the turntable bearing 3 is further driven to rotate, the radial hydraulic cylinder 16, the axial hydraulic cylinder 11 and the overturning moment hydraulic cylinder 10 and 14 are started to load the loading plate 8, the load is transmitted to the turntable bearing 3, parameters in the test process are detected and controlled by a computer in cooperation with a data acquisition system and a pressure sensing control system, the detection of a variable speed test and a variable load test of the turntable bearing 3 can be realized, and the actual working condition of the bearing is simulated.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120334488.7U CN214373338U (en) | 2021-02-05 | 2021-02-05 | A test device for mechanical properties of wind turbine slewing bearing |
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| CN202120334488.7U CN214373338U (en) | 2021-02-05 | 2021-02-05 | A test device for mechanical properties of wind turbine slewing bearing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894473A (en) * | 2022-03-29 | 2022-08-12 | 洛阳轴承研究所有限公司 | Testing device for main shaft system of wind power generation equipment |
| CN114923685A (en) * | 2022-03-14 | 2022-08-19 | 华北电力大学（保定） | A wind turbine pitch bearing test bench |
| CN115165334A (en) * | 2022-07-12 | 2022-10-11 | 中国电子科技集团公司第三十八研究所 | Radar antenna composite loading test device |
| CN115655714A (en) * | 2022-10-18 | 2023-01-31 | 浙江长盛塑料轴承技术有限公司 | A multi-working condition slewing bearing testing machine |
| CN116124451A (en) * | 2022-12-22 | 2023-05-16 | 中信重工机械股份有限公司 | Loading device and loading method for large precise weak-rigidity turntable |
| CN116577096A (en) * | 2023-05-17 | 2023-08-11 | 沈阳建筑大学 | A TBM main drive system multi-source signal online monitoring simulation test bench |
| CN118168737A (en) * | 2024-05-15 | 2024-06-11 | 洛阳轴承集团股份有限公司 | Bearing rigidity detection device |
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2021
- 2021-02-05 CN CN202120334488.7U patent/CN214373338U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114923685A (en) * | 2022-03-14 | 2022-08-19 | 华北电力大学（保定） | A wind turbine pitch bearing test bench |
| CN114894473A (en) * | 2022-03-29 | 2022-08-12 | 洛阳轴承研究所有限公司 | Testing device for main shaft system of wind power generation equipment |
| CN114894473B (en) * | 2022-03-29 | 2023-09-22 | 洛阳轴承研究所有限公司 | Testing device for main shaft system of wind power generation equipment |
| CN115165334A (en) * | 2022-07-12 | 2022-10-11 | 中国电子科技集团公司第三十八研究所 | Radar antenna composite loading test device |
| CN115655714A (en) * | 2022-10-18 | 2023-01-31 | 浙江长盛塑料轴承技术有限公司 | A multi-working condition slewing bearing testing machine |
| CN116124451A (en) * | 2022-12-22 | 2023-05-16 | 中信重工机械股份有限公司 | Loading device and loading method for large precise weak-rigidity turntable |
| CN116577096A (en) * | 2023-05-17 | 2023-08-11 | 沈阳建筑大学 | A TBM main drive system multi-source signal online monitoring simulation test bench |
| CN118168737A (en) * | 2024-05-15 | 2024-06-11 | 洛阳轴承集团股份有限公司 | Bearing rigidity detection device |
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