CN216717805U - Swing loading test mechanism of wind power sliding bearing - Google Patents
Swing loading test mechanism of wind power sliding bearing Download PDFInfo
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- CN216717805U CN216717805U CN202122906679.9U CN202122906679U CN216717805U CN 216717805 U CN216717805 U CN 216717805U CN 202122906679 U CN202122906679 U CN 202122906679U CN 216717805 U CN216717805 U CN 216717805U
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Abstract
The utility model provides a swinging loading test mechanism of a wind power sliding bearing, which comprises a rotating shaft, a test bearing seat, a test bearing arranged between the rotating shaft and the test bearing seat and a swinging loading unit for driving the rotating shaft to swing at a small angle, wherein the swinging loading unit comprises a swinging driving piece, a swinging connecting piece and a swinging limiting assembly, the driving end of the swinging driving piece is hinged at one end of the swinging connecting piece, and the other end of the swinging connecting piece is connected with the rotating shaft; the swing connecting piece is in limit fit with the swing limiting assembly when the rotating shaft rotates to a preset angle. The utility model has the advantages of truly simulating the small-angle swing working condition of the rotating shaft, judging whether the sliding bearing and the rotating shaft meet the requirement of the actual working condition, and the like.
Description
Technical Field
The utility model relates to the field of performance testing of wind power sliding bearings, in particular to a swinging loading testing mechanism of a wind power sliding bearing.
Background
When a wind power sliding bearing is developed or a sliding bearing adopts a new material and a new process, after the sliding bearing is designed through calculation, simulation and the like, a performance test needs to be carried out on the sliding bearing before application in general, so that corresponding test data is collected, whether the designed sliding bearing meets performance requirements or not is judged, and various actual working conditions are met. In the sliding bearing performance test, the simulation rotating shaft is required to simulate the working conditions that the wind power blades are stopped and do not rotate and swing at a small angle under the action of wind power, the conventional sliding bearing test mechanism does not have the function of swinging loading test generally, the test of the sliding bearing during the swinging of the rotating shaft can not be completed, and the sliding bearing after the design can not be verified whether to meet the requirements of various actual working conditions.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a swing loading test mechanism of a wind power sliding bearing, which can truly simulate the small-angle swing working condition of a rotating shaft and judge whether the sliding bearing meets the requirement of the actual working condition.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
a swing loading test mechanism of a wind power sliding bearing comprises a rotating shaft, a test bearing seat, a test bearing arranged between the rotating shaft and the test bearing seat and a swing loading unit for driving the rotating shaft to swing at a small angle, wherein the swing loading unit comprises a swing driving piece, a swing connecting piece and a swing limiting assembly, the driving end of the swing driving piece is hinged to one end of the swing connecting piece, and the other end of the swing connecting piece is connected with the rotating shaft; the swing connecting piece is in limit fit with the swing limiting assembly when the rotating shaft rotates to a preset angle.
As a further improvement of the technical scheme:
the swing connecting piece is provided with a limiting convex part; the swing limiting assembly comprises a fixedly arranged mounting plate, a first stop block with a limiting groove and two second stop blocks which are oppositely arranged; when the simulation rotating shaft swings at a small angle, the first stop block is arranged on the mounting plate, the limiting convex part is positioned in the limiting groove of the mounting plate, and a swinging gap is reserved between the limiting convex part and the limiting groove; when the simulation rotating shaft swings at a large angle, the two second stoppers are arranged on the mounting plate and arranged on the swinging stroke of the limiting convex part.
The swing limiting assembly further comprises two elastic buffer pads, and the two elastic buffer pads are respectively arranged on the outer sides of the two second stop blocks.
The swing testing mechanism also comprises a controller, a travel switch arranged on the swing driving piece and a driving source in driving connection with the swing driving piece; the input end of the controller is connected with the travel switch, and the output end of the controller is connected with the driving source; the travel switch detects travel position information of the swing driving piece and sends the travel position information to the controller, the controller determines a control instruction according to the travel position information and sends the control instruction to the driving source, and the driving source controls the moving travel of the swing driving piece according to the control instruction.
The swing driving part is a cylinder, a hydraulic cylinder or a gear rack driving part; when the swing driving piece is an air cylinder or a hydraulic cylinder, the driving source is a control valve which forms a pneumatic or hydraulic loop with the swing driving piece; when the swinging driving piece is a gear and rack driving part, the driving source is a driving motor connected with a gear.
The swing connecting piece with be equipped with the flat key of transmission moment of torsion between the axis of rotation, just the swing connecting piece with the axis of rotation passes through fastener detachably and connects.
The swing testing mechanism further comprises a testing platform, and the swing driving piece is installed on the testing platform through a driving piece installation frame.
The swing testing mechanism further comprises two testing mounting frames, the two testing mounting frames are respectively arranged at two ends of the testing bearing seat, and the rotating shaft is supported on the testing mounting frames through a rolling bearing.
The swing test mechanism further comprises a detection assembly for monitoring the performance of the test bearing and the performance of the rotating shaft in real time when different loading acting forces act, the detection assembly comprises an oil film thickness detection piece, an oil pressure detection piece and an oil temperature detection piece, and the oil film thickness detection piece, the oil pressure detection piece and the oil temperature detection piece are all arranged on the test bearing.
Swing accredited testing organization still including getting into the fuel feeding unit who provides lubricating oil between test bearing and the axis of rotation, fuel feeding unit is including the oil feed passageway of locating the test bearing frame, locating the annular fuel feeding groove of test bearing surface to and along the radial fuel feeding through-hole that sets up of test bearing, the oil feed passageway the annular fuel feeding groove with the fuel feeding through-hole communicates in proper order.
Compared with the prior art, the utility model has the advantages that:
the swing loading unit specially provided with the swing driving device for driving the rotating shaft to swing at a small angle comprises a swing driving piece, a swing connecting piece and a swing limiting assembly, wherein the driving end of the swing driving piece is hinged to one end of the swing connecting piece, the other end of the swing connecting piece is connected with the rotating shaft, and the swing loading unit is simple in structure and small in occupied space. Meanwhile, the swing driving piece is hinged with the swing connecting piece, so that the linear motion of the swing driving piece can be converted into the swing motion of the swing connecting piece to provide the swing acting force of the rotating shaft; and the swing connecting piece is in spacing cooperation with the spacing subassembly of swing when the rotation axis rotates to preset angle, and its swing angle of effective control axis of rotation has truly simulated axis of rotation small-angle swing operating mode, and its test result accuracy is high, has effectively verified the wearing and tearing condition and the operation effect of slide bearing and the axis of rotation when the swing operating mode after the design to judge whether the material of slide bearing and axis of rotation, technology satisfy actual condition's needs.
Drawings
The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
fig. 1 is a front view of a pendulum loading unit of the present invention.
Fig. 2 is a left side view of the pendulum loading unit of the present invention.
Fig. 3 is a rear view of the pendulum loading unit of the present invention.
FIG. 4 is a sectional view of the swing loading test mechanism of the wind power sliding bearing.
Fig. 5 is a schematic perspective view of a swinging loading test mechanism of the wind power sliding bearing.
Fig. 6 is a schematic view of the position of the detection assembly of the present invention.
Fig. 7 is a cross-sectional view of fig. 6.
Fig. 8 is a schematic diagram of the arrangement position of the oil inlet channel.
The reference numerals in the figures denote:
1. a rotating shaft; 2. testing the bearing seat; 3. testing a bearing; 4. a swing loading unit; 41. a swing drive; 42. a swinging connection; 421. a limiting convex part; 422. a flat bond; 43. a swing limiting component; 431. mounting a plate; 432. a first stopper; 433. a second stopper; 434. an elastic cushion pad; 5. a travel switch; 6. a drive source; 61. a control valve; 7. a test platform; 8. testing the mounting rack; 81. a rolling bearing; 9. an oil supply unit; 91. an oil inlet channel; 92. an annular oil supply groove; 93. an oil supply through hole; 94. an oil film thickness detection member; 95. an oil pressure detecting member; 96. an oil temperature detecting member; 10. a driving member mounting frame.
Detailed Description
The utility model will be described in further detail with reference to the drawings and specific examples, without thereby limiting the scope of the utility model.
Fig. 1 to 5 show an embodiment of a swing loading test mechanism of a wind power sliding bearing, which is disclosed by the utility model, and the swing test mechanism is used for simulating a small wind blowing swing working condition when a wind power rotating shaft is stopped and blades do not rotate so as to perform a swing test of the sliding bearing and test the operation effect of the sliding bearing under the swing working condition. In this embodiment, the swing loading test mechanism of the wind power sliding bearing includes a rotating shaft 1, a test bearing seat 2, a test bearing 3 and a swing loading unit 4. The test bearing 3 is arranged between the rotating shaft 1 and the test bearing seat 2 and used for simulating a wind power sliding bearing. The swing loading unit 4 comprises a swing driving element 41, a swing connecting element 42 and a swing limiting assembly 43, wherein the driving end of the swing driving element 41 is hinged to one end of the swing connecting element 42, and the other end of the swing connecting element 42 is connected with the rotating shaft 1 so as to drive the rotating shaft 1 to swing at a small angle; the swing connecting piece 42 is in limit fit with the swing limit component 43 when the rotating shaft 1 rotates to a preset angle.
The swing loading unit 4 specially used for driving the rotating shaft 1 to swing at a small angle is arranged, and the swing loading structure is simple and occupies a small space. Meanwhile, the swing driving member 41 is hinged to the swing connecting member 42 so that the linear motion of the swing driving member 41 can be converted into the swing motion of the swing connecting member 42 to provide the swing acting force of the rotating shaft 1; and swing connecting piece 42 rotates to the spacing cooperation of spacing subassembly 43 of swing when presetting the angle at axis of rotation 1, its swing angle of effective control axis of rotation 1, the true 1 small-angle swing operating mode of axis of rotation that has simulated, its test result accuracy is high, the wearing and tearing condition and the operation effect of axis of rotation 1 when the swing operating mode of the slide bearing after effectively having verified the design to judge whether the material of slide bearing and axis of rotation 1, technology satisfy actual condition's needs. As shown in fig. 1, the swing link 42 is provided with a limit protrusion 421; the swing limiting assembly 43 includes a mounting plate 431, a first stop 432 and two second stops 433. Wherein the mounting plate 431 is fixedly disposed. A limit groove is formed in the middle of the upper end of the first stop block 432; when the simulation rotating shaft 1 swings at a small angle, the first stopper 432 is mounted on the mounting plate 431, the limit protrusion 421 is located in the limit groove of the mounting plate 431, and a swing gap is left between the limit protrusion 421 and the limit groove, so that the swing connecting member 42 can only swing within the range of the swing gap.
When the analog rotating shaft 1 swings at a large angle, the two second stoppers 433 are mounted on the mounting plate 431, and the two second stoppers 433 are oppositely arranged on the swing stroke of the limit protrusion 421, so that the swing connector 42 can only swing between the two second stoppers 433. The utility model effectively limits the rotating range of the swinging connecting piece 42 through the arrangement of the first stop block 432 and the second stop block 433, realizes the multi-angle swinging simulation of the rotating shaft 1, and has simple limiting structure and convenient operation.
Further, the swing limiting assembly 43 further includes two elastic cushions 434. When the simulated rotating shaft 1 swings at a large angle, the two elastic cushions 434 are respectively arranged at the outer sides of the two second stoppers 433, so as to play a role in buffering and damping when the limit convex part 421 contacts with the second stoppers 433.
In this embodiment, the swing loading testing mechanism for the wind power sliding bearing further includes a controller, a travel switch 5, and a driving source 6. The input end of the controller is connected with the travel switch 5, the output end of the controller is connected with the driving source 6, and the driving source 6 is in driving connection with the swinging driving piece 41. The travel switch 5 is arranged on the swinging driving piece 41 and used for detecting travel position information of the swinging driving piece 41 and sending the travel position information to the controller; the controller determines a control instruction according to the stroke position information and sends the control instruction to the driving source 6; the driving source 6 controls the moving stroke of the swing driving member 41 according to the control instruction, so as to further accurately control the swing angle of the rotating shaft 1, and ensure the reliability and accuracy of the test result. In this embodiment, the position of the travel switch 5 can be adjusted according to the requirement of the swing angle of the rotating shaft 1 to control the up-down travel amount of the swing driving member 41, thereby achieving the purpose of adjusting the swing angle of the rotating shaft 1.
In the present embodiment, the swing driving member 41 is a cylinder; the driving source 6 is a control valve 61, and the control valve 61 and the swing actuator 41 form a pneumatic circuit to control the moving stroke of the swing actuator 41. In other embodiments, the oscillating drive 41 may also be a hydraulic cylinder or a rack and pinion drive. When the swing actuator 41 is a hydraulic cylinder, the drive source 6 is a control valve that forms a hydraulic circuit with the swing actuator 41. When the swing driving member 41 is a rack and pinion driving member, the driving source 6 is a driving motor connected to a gear.
As shown in fig. 3, a flat key 422 is provided between the swing link 42 and the rotating shaft 1 to transmit the torque of the swing link 42 to the rotating shaft 1, so as to swing the rotating shaft 1. Meanwhile, the swing connecting piece 42 is detachably connected with the rotating shaft 1 through a fastening piece, so that the swing testing mechanism is conveniently detached when the bearing bending moment loading and radial loading simulation test is carried out, and the simulation of other testing functions of the wind power sliding bearing is realized.
In this embodiment, the swing loading test mechanism of the wind power sliding bearing further includes a test platform 7. The swing driving member 41 is mounted on the testing platform 7 through a driving member mounting frame 10; the control valve 61 is mounted on the driver mounting bracket 10. The installation structure is simple, and the reliable operation of the swing testing mechanism is ensured.
In this embodiment, the swing loading test mechanism of the wind power sliding bearing further comprises two test mounting frames 8. Two ends of the test bearing seat 2 are respectively arranged on the two test mounting frames 8, and the rotating shaft 1 is supported on the test mounting frames 8 through the rolling bearing 81 so as to effectively support the rotating shaft 1 and ensure reliable simulation of each test function of the test bearing 3 and the rotating shaft 1.
As shown in fig. 6, the swing testing mechanism further includes a detection assembly. The detection assembly comprises an oil film thickness detection piece 94, an oil pressure detection piece 95 and an oil temperature detection piece 96, wherein the oil film thickness detection piece 94, the oil pressure detection piece 95 and the oil temperature detection piece 96 are all arranged on the test bearing 3. The performance of the test bearing 3 and the rotating shaft 1 at different swing angles of the rotating shaft 1 is judged by detecting the oil film thickness, the oil pressure and the oil temperature at the positions of the test bearing 3 and the rotating shaft 1, and an auxiliary judgment standard is provided for the abrasion conditions of the test bearing 3 and the rotating shaft 1.
When the abrasion conditions of the test bearing 3 and the rotating shaft 1 are judged, the rotating shaft sleeve 11 of the test bearing 3 and the rotating shaft 1 can be detached to judge the abrasion amount. If the abrasion loss of the bearing 3 and the rotating shaft sleeve 11 is judged to be small, the test can be carried out again; if the abrasion loss of the test bearing 3 and the rotating shaft sleeve 11 reaches a certain degree, the corresponding design of the test bearing 3 and the rotating shaft sleeve 11 is changed (such as changing coating, shaft pressure and the like), and the test bearing 3 and the rotating shaft sleeve 11 which are newly designed are tested.
As shown in fig. 7 and 8, the swing loading test mechanism of the wind power sliding bearing further includes an oil supply component 9, and the oil supply component 9 includes an oil inlet channel 91, an annular oil supply groove 92, and an oil supply through hole 93. On test bearing frame 2 was located to oil feed passageway 91, the surface of test bearing 3 was located to annular oil supply groove 92, and oil supply through-hole 93 radially sets up along test bearing 3, and oil feed passageway 91, annular oil supply groove 92 and oil supply through-hole 93 communicate in proper order, and it makes lubricating oil effectively get into and lubricates between test bearing 3 and the axis of rotation 1 to reach lubricated antifriction effect. The structure is simple, and the oil supply effect is good.
While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A swing loading test mechanism of a wind power sliding bearing is characterized by comprising a rotating shaft, a test bearing seat, a test bearing arranged between the rotating shaft and the test bearing seat and a swing loading unit for driving the rotating shaft to swing at a small angle, wherein the swing loading unit comprises a swing driving piece, a swing connecting piece and a swing limiting assembly, the driving end of the swing driving piece is hinged to one end of the swing connecting piece, and the other end of the swing connecting piece is connected with the rotating shaft; the swing connecting piece is in limit fit with the swing limiting assembly when the rotating shaft rotates to a preset angle.
2. The swing loading test mechanism of the wind power sliding bearing according to claim 1, wherein the swing connecting piece is provided with a limit convex part; the swing limiting assembly comprises a fixedly arranged mounting plate, a first stop block with a limiting groove and two second stop blocks which are oppositely arranged; when the simulated rotating shaft swings at a small angle, the first stop block is arranged on the mounting plate, the limiting convex part is positioned in the limiting groove of the mounting plate, and a swinging gap is reserved between the limiting convex part and the limiting groove; when the simulation rotating shaft swings at a large angle, the two second stoppers are arranged on the mounting plate and arranged on the swinging stroke of the limiting convex part.
3. The oscillating load testing mechanism of a wind power sliding bearing according to claim 2, wherein the oscillation limiting component further comprises two elastic cushions, and the two elastic cushions are respectively disposed at the outer sides of the two second stoppers.
4. The swing loading test mechanism of the wind power sliding bearing according to any one of claims 1 to 3, further comprising a controller, a travel switch arranged on the swing driving member, and a driving source in driving connection with the swing driving member; the input end of the controller is connected with the travel switch, and the output end of the controller is connected with the driving source; the travel switch detects travel position information of the swing driving piece and sends the travel position information to the controller, the controller determines a control instruction according to the travel position information and sends the control instruction to the driving source, and the driving source controls the moving travel of the swing driving piece according to the control instruction.
5. The swing loading test mechanism of the wind power sliding bearing according to claim 4, wherein the swing driving member is a cylinder, a hydraulic cylinder or a rack and pinion driving member; when the swing driving piece is an air cylinder or a hydraulic cylinder, the driving source is a control valve which forms a pneumatic or hydraulic loop with the swing driving piece; when the swinging driving piece is a gear and rack driving part, the driving source is a driving motor connected with a gear.
6. The swing loading test mechanism of the wind power sliding bearing according to any one of claims 1 to 3, wherein a flat key for transmitting torque is arranged between the swing connecting piece and the rotating shaft, and the swing connecting piece and the rotating shaft are detachably connected through a fastener.
7. The swinging loading test mechanism for the wind power sliding bearing according to any one of claims 1 to 3, further comprising a test platform, wherein the swinging driving member is mounted on the test platform through a driving member mounting frame.
8. The swinging loading testing mechanism of the wind power sliding bearing according to any one of claims 1 to 3, further comprising two test mounting frames, wherein the two test mounting frames are respectively arranged at two ends of the test bearing seat, and the rotating shaft is supported on the test mounting frames through a rolling bearing.
9. The oscillating loading test mechanism of the wind power sliding bearing according to any one of claims 1 to 3, further comprising a detection component for monitoring and testing the performance of the bearing and the rotating shaft in real time under different loading acting forces, wherein the detection component comprises an oil film thickness detection piece, an oil pressure detection piece and an oil temperature detection piece, and the oil film thickness detection piece, the oil pressure detection piece and the oil temperature detection piece are all arranged on the test bearing.
10. The swinging loading test mechanism of the wind power sliding bearing according to any one of claims 1 to 3, further comprising an oil supply component for supplying lubricating oil between the test bearing and the rotating shaft, wherein the oil supply component comprises an oil inlet channel arranged on the test bearing seat, an annular oil supply groove arranged on the outer surface of the test bearing, and an oil supply through hole radially arranged along the test bearing, and the oil inlet channel, the annular oil supply groove and the oil supply through hole are sequentially communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122906679.9U CN216717805U (en) | 2021-11-24 | 2021-11-24 | Swing loading test mechanism of wind power sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122906679.9U CN216717805U (en) | 2021-11-24 | 2021-11-24 | Swing loading test mechanism of wind power sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216717805U true CN216717805U (en) | 2022-06-10 |
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ID=81881130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122906679.9U Active CN216717805U (en) | 2021-11-24 | 2021-11-24 | Swing loading test mechanism of wind power sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216717805U (en) |
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2021
- 2021-11-24 CN CN202122906679.9U patent/CN216717805U/en active Active
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