CN114235400A - Wind-powered electricity generation slide bearing capability test device - Google Patents
Wind-powered electricity generation slide bearing capability test device Download PDFInfo
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- CN114235400A CN114235400A CN202111427675.0A CN202111427675A CN114235400A CN 114235400 A CN114235400 A CN 114235400A CN 202111427675 A CN202111427675 A CN 202111427675A CN 114235400 A CN114235400 A CN 114235400A
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- 238000012360 testing method Methods 0.000 title claims abstract description 189
- 230000005611 electricity Effects 0.000 title description 4
- 238000005452 bending Methods 0.000 claims abstract description 27
- 239000003921 oil Substances 0.000 claims description 58
- 238000001514 detection method Methods 0.000 claims description 28
- 238000004088 simulation Methods 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 9
- 239000000446 fuel Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention provides a wind power sliding bearing performance testing device which comprises a rotating shaft, a testing bearing seat, a testing bearing, a bending moment loading unit, a radial loading unit and a swinging loading unit, wherein the testing bearing is arranged between the rotating shaft and the testing bearing seat, the bending moment loading unit is used for providing bending moment acting force of the testing bearing, the radial loading unit is used for providing radial acting force of the testing bearing, and the swinging loading unit is used for driving the rotating shaft to swing at a small angle; the radial loading unit is connected below the test bearing seat; the swing loading module is connected with one end of the rotating shaft during swing testing. The invention has the advantages of truly simulating various actual working conditions of the wind power sliding bearing, reasonable layout and the like.
Description
Technical Field
The invention relates to the field of wind power sliding bearing performance testing, in particular to a wind power sliding bearing performance testing device.
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 actual operation condition of the sliding bearing is required to be simulated, the conventional sliding bearing test mechanism does not have a multi-condition simulation test function generally, the multi-condition simulation test of the sliding bearing cannot be completed, and whether the designed sliding bearing meets the requirements of various actual conditions or not cannot be verified.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a wind power sliding bearing performance testing device which truly simulates various actual working conditions of a wind power sliding bearing and is reasonable in layout.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a wind power sliding bearing performance testing device comprises a rotating shaft, a testing bearing seat, a testing bearing arranged between the rotating shaft and the testing bearing seat, a bending moment loading unit for providing bending moment acting force of the testing bearing, a radial loading unit for providing radial acting force of the testing bearing and a swinging loading unit for driving the rotating shaft to swing at a small angle, wherein the bending moment loading unit comprises two groups of loading parts, and the two groups of loading parts are arranged on two axial sides of the testing bearing and act on opposite angles of the testing bearing seat; the radial loading unit is connected below the test bearing seat; the swing loading module is connected with one end of the rotating shaft during swing testing.
As a further improvement of the above technical solution:
the wind power sliding bearing performance testing device also comprises two testing mounting frames and two groups of connecting assemblies, wherein 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 two groups of connecting components are arranged on two sides of the test bearing seat respectively; one end of the connecting assembly is connected with one of the test mounting frames through the loading component on the corresponding side, and the other end of the connecting assembly is connected with the other test mounting frame so as to enclose a closed-loop framework which is formed to balance loading acting force when the bending moment loading component is loaded.
The wind power sliding bearing performance testing device also comprises limit stops, the limit stops and the loading ends of the loading parts are oppositely arranged at two ends of the testing bearing seat, and a gap is reserved between the limit stops and the testing bearing seat; when the acting forces of the two groups of loading components are different, the test bearing seat is in limit fit with the limit stop.
The connecting assembly comprises a connecting arm and a connecting seat, one end of the connecting arm is connected with the test mounting rack through the loading part, and the other end of the connecting arm is connected with the other test mounting rack through the connecting seat; the limit stop is arranged on the connecting seat.
The radial loading unit comprises a radial driving piece, a loading seat for providing radial loading acting force of the test bearing seat and an adjusting component for providing uniform loading acting force of the loading seat, the adjusting component is connected between the radial driving piece and the loading seat, and the loading seat is installed below the test bearing seat.
The adjusting assembly comprises a joint bearing, a vertical connecting rod and a transverse connecting rod, one end of the vertical connecting rod is connected with the radial driving piece, and the other end of the vertical connecting rod is rotatably sleeved on the transverse connecting rod through the joint bearing; the transverse connecting rod is arranged on the loading seat.
The swing loading unit 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, 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.
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 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.
Wind-powered electricity generation slide bearing capability test device still includes the detection subassembly of real-time detection test bearing and rotating shaft performance when different loading effort, the detection subassembly includes oil film thickness detection piece, oil pressure detection piece and oil temperature detection piece, oil film thickness detection piece, oil pressure detection piece and oil temperature detection piece all locate on the test bearing.
Wind-powered electricity generation slide bearing capability test device still includes the fuel feeding unit who provides lubricating oil between entering 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 invention has the advantages that:
the invention is provided with a bending moment loading unit, a radial loading unit and a swing loading unit. The two groups of loading components of the bending moment loading unit are arranged at two axial sides of the test bearing and act on opposite angles of the test bearing seat to provide bending moment acting force of the test bearing; the radial loading unit is connected below the test bearing seat to provide radial acting force for the test bearing; the swing loading unit is connected with one end of the rotating shaft during swing test so as to drive the rotating shaft to swing at a small angle. The loading unit is reasonable in layout, and the modularized design facilitates the installation and the disassembly of each loading unit, so that each loading unit can be quickly adjusted, the detection efficiency is greatly improved, and the test cost is reduced.
Meanwhile, the arrangement of each loading unit realizes the real simulation of the wind power sliding bearing under various actual working conditions, so that the test result is high in accuracy, and the abrasion conditions and the operation effects of the designed sliding bearing and the designed rotating shaft under various actual working conditions are effectively verified so as to judge whether the materials and the process of the sliding bearing and the rotating shaft meet the requirements of the actual working conditions.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
FIG. 1 is an exploded structure schematic diagram of a wind power sliding bearing performance testing device of the invention.
Fig. 2 is a perspective view of the wind power sliding bearing performance testing device (no swing loading unit is provided).
Fig. 3 is an exploded view of fig. 2.
Fig. 4 is a top view of fig. 2.
Fig. 5 is a cross-sectional view of a wind power sliding bearing performance testing device (a swing loading unit is not provided).
Fig. 6 is an enlarged schematic view of a portion a of fig. 5.
Fig. 7 is an enlarged schematic view of a portion B of fig. 5.
Fig. 8 is a schematic structural diagram of the swing loading unit of the present invention.
Fig. 9 is a schematic view of the position of the detection assembly of the present invention.
Fig. 10 is a cross-sectional view of fig. 9.
Fig. 11 is a schematic diagram of the arrangement position of the oil inlet channel.
The reference numerals in the figures denote:
1. a rotating shaft; 11. a rotating shaft sleeve; 2. testing the bearing seat; 21. a bearing mount; 22. a bearing cap; 3. testing a bearing; 31. oil sealing; 4. a bending moment loading unit; 41. a loading member; 411. loading an oil cylinder; 412. an oil cylinder mounting base; 413. a top rod; 414. a bushing; 415. a fixed seat; 5. a radial loading unit; 51. a radial drive; 52. a loading base; 53. an adjustment assembly; 531. a knuckle bearing; 532. a vertical connecting rod; 533. a transverse connecting rod; 54. a force sensor; 55. a driving member mounting base; 6. a swing loading unit; 61. a swing drive; 62. a swinging connection; 621. a limiting convex part; 63. a swing limiting component; 631. mounting a plate; 632. a first stopper; 633. a second stopper; 634. an elastic cushion pad; 63. a driving member mounting frame; 7. a closed loop frame; 71. testing the mounting rack; 72. a connecting assembly; 721. a connecting arm; 722. a connecting seat; 73. a limit stop block; 8. 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. and (7) testing the platform.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific examples, without thereby limiting the scope of the invention.
As shown in fig. 1 to 9, the wind power sliding bearing performance testing device of the embodiment can simulate various actual conditions of the wind power sliding bearing, and perform sliding bearing performance testing to determine the operation effect of the sliding bearing under various actual conditions.
In this embodiment, the wind power sliding bearing performance testing device includes a rotating shaft 1, a test bearing seat 2, a test bearing 3, a bending moment loading unit 4, a radial loading unit 5, and a swing loading unit 6. 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 bending moment loading unit 4 comprises two groups of loading parts 41, the two groups of loading parts 41 are arranged at two axial sides of the test bearing 3, and the two groups of loading parts 41 act on opposite angles of the test bearing seat 2 to provide bidirectional bending moment loading acting force for the test bearing 3; meanwhile, the arrangement form of the two groups of loading components 41 can output two loading bending moments with equal acting force and opposite directions, so that the loading components 41 can balance the loading acting force during loading, and the working conditions that the wind power blade is unbalanced in stress and has lateral force and the whole shafting is inclined are truly simulated. The radial loading unit 5 is connected below the test bearing seat 2 to provide radial acting force for the test bearing 3 so as to simulate the working condition that the lateral force acts on the rotating shaft 1 when the wind power gear has load and the gear is meshed with the gear to transmit torque. The swing loading module is connected with one end of the rotating shaft 1 during swing testing to drive the rotating shaft 1 to swing at a small angle, and wind blowing small swing working conditions are simulated when the wind power rotating shaft 1 is stopped and blades do not rotate.
The arrangement of each loading unit realizes the real simulation of various actual working conditions of the wind power sliding bearing, so that the test result is high in accuracy, the abrasion condition and the operation effect of the designed sliding bearing and the designed rotating shaft 1 under various actual working conditions are effectively verified, and whether the materials and the process of the sliding bearing and the rotating shaft 1 meet the requirements of the actual working conditions or not is judged. Meanwhile, the layout is reasonable, the modular design is convenient for the installation and the disassembly of each loading unit, so that each loading unit can be quickly adjusted, the detection efficiency is greatly improved, and the test cost is reduced.
Specifically, as shown in fig. 7, a rotating shaft sleeve 11 is sleeved outside the rotating shaft 1 in an interference manner, and the rotating shaft sleeve 11 rotates along with the rotating shaft 1 and is a rotating member; the test bearing 3 is positioned outside the rotating shaft sleeve 11 and is a static part; a sliding friction pair is formed between the test bearing 3 and the rotating shaft sleeve 11, and abrasion generated during testing is generated at the position of the sliding friction pair. Meanwhile, the hardness of the outer surface of the rotating shaft sleeve 11 is usually lower than that of the inner surface of the test bearing 3, so that abrasion usually occurs on the rotating shaft sleeve 11 firstly during loading test, and whether the design of the rotating shaft sleeve 11 meets the requirement of an actual working condition can be judged by detecting the abrasion condition of the rotating shaft sleeve 11.
As shown in fig. 2 to 5, the wind power sliding bearing performance testing device further includes two testing mounting brackets 71 and two sets of connecting assemblies 72. Two test mounting brackets 71 are respectively arranged at two ends of the test bearing seat 2, and the rotating shaft 1 is supported on the test mounting brackets 71 through a rolling bearing 8 so as to ensure the reliable simulation of each test function of the test bearing 3 and the rotating shaft 1.
Meanwhile, the two groups of connecting components 72 are respectively arranged at two sides of the test bearing pedestal 2; one end of each connecting assembly 72 is connected with one of the test mounting brackets 71 through the corresponding side loading part 41, and the other ends of the two groups of connecting assemblies 72 are connected with the other test mounting bracket 71 so as to form a closed-loop frame 7 in a surrounding manner. The arrangement of the closed-loop frame 7 enables the loading torque of the loading component 41 to be converted into the interior of the frame structure, and no bending moment loading acting force is output to the exterior, so that the requirements on the height and rigidity of the installation component are effectively reduced; the test device can realize larger bending moment test under the condition of the same structure, and the structure is simplified under the condition of the same bending moment requirement. Meanwhile, the closed-loop frame 7 enables the two test mounting frames 71 not to be expanded and deformed when the loading part 41 is loaded, and the structural stability is high.
Further, the wind power sliding bearing performance testing device further comprises a limit stop 73. The limit stopper 73 is arranged at both ends of the test bearing housing 2 opposite to the loading end of the loading member 41, and a gap is left between the limit stopper 73 and the test bearing housing 2. When the acting forces of the two groups of loading components 41 are different, the test bearing seat 2 is in limit fit with the limit stop 73, so that the test bearing seat 2 is supported and protected, and the safety of the device is ensured; meanwhile, the limit stop 73 is arranged to enable the test bearing 3 to move in a small range during installation, so that the phenomenon of installation deviation of the test bearing 3 is prevented, and effective installation of the test bearing 3 is guaranteed.
As shown in fig. 3, the charging member 41 includes a charging cylinder 411 and a cylinder mount 412. The loading cylinder 411 is installed on the cylinder installation base 412, and a top rod 413 of the loading cylinder 411 is axially positioned through a bush 414 and a fixed base 415 and can axially move. When the bending moment acting force of the bearing 3 is simulated and tested, the loading oil cylinders 411 of the two groups of loading components 41 work simultaneously and act on the test bearing seat 2 through the ejector rod 413, the test bearing seat 2 generates bending moment and acts on the test bearing 3, and the test bearing 3 is stressed on one side, so that the test of the bending moment working condition of the bearing is realized.
Further, the connecting assembly 72 includes a connecting arm 721 and a connecting seat 722. One end of the connecting arm 721 is connected to the test mounting rack 71 through the cylinder mounting seat 412 of the loading unit 41, and the other end of the connecting arm 721 is connected to another test mounting rack 71 through the connecting seat 722 to form a closed-loop frame 7. In this embodiment, the limit stop 73 is mounted on the connecting seat 722.
As shown in fig. 5 and 6, the radial loading unit 5 includes a radial driving member 51, a loading seat 52, and an adjustment assembly 53. The loading seat 52 is installed below the test bearing seat 2, and the adjusting assembly 53 is connected between the radial driving member 51 and the loading seat 52, so that the loading structure is simple, and the occupied space is small. Meanwhile, the loading seat 52 provides a radial loading acting force of the test bearing seat 2, the adjusting component 53 provides an even loading acting force of the loading seat 52, the reliable radial loading acting force of the sliding bearing is provided, the test bearing seat 2 always provides an even loading acting force of the rotating shaft 1 when the sliding bearing is installed obliquely or is loaded and deformed, the radial loading working condition of the sliding bearing is truly and effectively simulated, the accuracy of a test result is high, the abrasion condition and the operation effect of the designed sliding bearing and the designed rotating shaft 1 under the radial working condition are effectively verified, and whether the sliding bearing and the rotating shaft 1 meet the requirements of the actual working condition or not is judged.
Further, the adjustment assembly 53 includes a knuckle bearing 531, a vertical link 532, and a transverse link 533. One end of the vertical connecting rod 532 is connected with the radial driving element 51, and the other end of the vertical connecting rod 532 is rotatably sleeved on the transverse connecting rod 533 through the knuckle bearing 531; the transverse link 533 is mounted to the loader base 52. The arrangement of the knuckle bearing 531 enables a spatial degree of freedom to exist when the radial driving piece 51 loads the test bearing seat 2, at this time, even if the test bearing seat 2 has a condition of installation deflection or loading deformation, the radial driving piece 51 always provides uniform loading acting force for the rotating shaft 1, the real simulation of the radial loading working condition of the sliding bearing is ensured, and the adjusting structure is simple and the layout is compact.
Further, the radial loading unit 5 further comprises a force sensor 54. Force sensor 54's one end and radial driving piece 51 are connected, and force sensor 54's the other end is connected with vertical connecting rod 532 to accurate loading force size that detects radial driving piece 51 provides the basis for judging the operation effect of test bearing 3 and axis of rotation 1 when different loading forces.
As shown in fig. 8, the swinging loading unit 6 includes a swinging driving member 61, a swinging connecting member 62 and a swinging limiting assembly 63, wherein a driving end of the swinging driving member 61 is hinged to one end of the swinging connecting member 62, and the other end of the swinging connecting member 62 is connected to the rotating shaft 1 to drive the rotating shaft 1 to swing at a small angle; the swing connecting piece 62 is in limit fit with the swing limit component 63 when the rotating shaft 1 rotates to a preset angle. The swing loading structure is simple and occupies small space. Meanwhile, when the bending moment loading and radial loading tests are performed, the connection between the swing connecting piece 62 and the rotating shaft 1 needs to be removed, so that the bending moment loading and radial loading tests can be smoothly performed.
Meanwhile, the swing driving member 61 is hinged with the swing connecting member 62 so that the linear motion of the swing driving member 61 can be converted into the swing motion of the swing connecting member 62 to provide the swing acting force of the rotating shaft 1; and swing connecting piece 62 rotates to the spacing cooperation of spacing subassembly 63 of swing when presetting the angle at axis of rotation 1, and its effective control the swing angle of axis of rotation 1, the true 1 low-angle swing operating mode of axis of rotation that has simulated, and its test result accuracy is high, has effectively verified the wearing and tearing condition and the operation effect of slide bearing and axis of rotation 1 when the swing operating mode after the design to judge whether slide bearing and axis of rotation 1 satisfy actual condition's needs.
Further, the swing connector 62 is provided with a limit protrusion 621; the swing limit assembly 63 includes a mounting plate 631, a first stop 632, and two second stops 633. Wherein the mounting plate 631 is fixedly disposed. A limit groove is arranged in the middle of the upper end of the first stop block 632; when the simulated rotating shaft 1 swings at a small angle, the first stopper 632 is mounted on the mounting plate 631, the limit protrusion 621 is located in the limit groove of the mounting plate 631, and a swing gap is left between the limit protrusion 621 and the limit groove, so that the swing connector 62 can only swing within the swing gap range.
When the simulation rotating shaft 1 swings at a large angle, the two second stoppers 633 are mounted on the mounting plate 631, and the two second stoppers 633 are oppositely disposed on the swing stroke of the limiting protrusion 621, so that the swing connector 62 can only swing between the two second stoppers 633. The invention effectively limits the rotating range of the swinging connecting piece 62 through the arrangement of the first stop block 632 and the second stop block 633, realizes the multi-angle swinging simulation of the rotating shaft 1, and has simple limiting structure and convenient operation.
Further, the swing limiting assembly 63 further includes two elastic cushions 634. When the simulation rotating shaft 1 swings at a large angle, the two elastic cushions 634 are respectively disposed at the outer sides of the two second stoppers 633 to play a role in buffering and damping when the limit protrusions 621 contact the second stoppers 633.
As shown in fig. 9, the wind power sliding bearing performance testing device further includes a detection component. 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 bearing 3 and the rotating shaft 1 under different working conditions is comprehensively judged by detecting the oil film thickness, the oil pressure and the oil temperature of the sliding friction pair, and an auxiliary judgment standard is provided for testing the abrasion conditions of the 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.
Further, as shown in fig. 10 and 11, the performance testing device for 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.
In this embodiment, the test bearing housing 2 includes a bearing base 21 and a bearing cover 22. Two ends of the test bearing 3 are provided with oil seals 31, and the oil seals 31 and the test bearing 3 are pressed and positioned through the bearing base 21 and the bearing cover 22. It makes things convenient for the loading and unloading of test bearing 3, and oil blanket 31 set up and effectively prevents that lubricating oil from leaking, guarantees lubricated antifriction effect.
In this embodiment, the wind power sliding bearing performance testing device further includes a testing platform 10. The test bearing pedestal 2 is arranged on the upper surface of the test platform 10; the radial driver 51 is mounted on the lower surface of the test platform 10 through the driver mounting seat 5554; the swing actuator 61 is mounted to the upper surface of the test platform 7 by an actuator mounting bracket 63. The installation structure is simple, and the reliable operation of the wind power sliding bearing performance testing device is ensured.
While the invention 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 invention. 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 invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A wind power sliding bearing performance testing device is characterized by comprising a rotating shaft, a testing bearing seat, a testing bearing arranged between the rotating shaft and the testing bearing seat, a bending moment loading unit for providing bending moment acting force of the testing bearing, a radial loading unit for providing radial acting force of the testing bearing and a swinging loading unit for driving the rotating shaft to swing at a small angle, wherein the bending moment loading unit comprises two groups of loading parts which are arranged on two axial sides of the testing bearing and act on opposite angles of the testing bearing seat; the radial loading unit is connected below the test bearing seat; the swing loading module is connected with one end of the rotating shaft during swing testing.
2. The wind power sliding bearing performance testing device according to claim 1, further comprising two test mounting frames and two sets of connecting assemblies, 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; the two groups of connecting components are arranged on two sides of the test bearing seat respectively; one end of the connecting assembly is connected with one of the test mounting frames through the loading component on the corresponding side, and the other end of the connecting assembly is connected with the other test mounting frame so as to enclose a closed-loop framework which is formed to balance loading acting force when the bending moment loading component is loaded.
3. The wind power sliding bearing performance testing device according to claim 2, further comprising limit stops, wherein the limit stops and the loading end of the loading component are arranged at two ends of the testing bearing seat oppositely, and a gap is reserved between the limit stops and the testing bearing seat; when the acting forces of the two groups of loading components are different, the test bearing seat is in limit fit with the limit stop.
4. The wind power sliding bearing performance testing device according to claim 3, wherein the connecting assembly comprises a connecting arm and a connecting seat, one end of the connecting arm is connected with the test mounting rack through the loading part, and the other end of the connecting arm is connected with the other test mounting rack through the connecting seat; the limit stop is arranged on the connecting seat.
5. The wind power sliding bearing performance testing device according to any one of claims 1 to 4, wherein the radial loading unit comprises a radial driving member, a loading seat providing a radial loading acting force of a testing bearing seat, and an adjusting assembly providing a uniform loading acting force of the loading seat, the adjusting assembly is connected between the radial driving member and the loading seat, and the loading seat is installed below the testing bearing seat.
6. The wind power sliding bearing performance testing device according to claim 5, wherein the adjusting assembly comprises a joint bearing, a vertical connecting rod and a transverse connecting rod, one end of the vertical connecting rod is connected with the radial driving member, and the other end of the vertical connecting rod is rotatably sleeved on the transverse connecting rod through the joint bearing; the transverse connecting rod is arranged on the loading seat.
7. The wind power sliding bearing performance testing device according to any one of claims 1 to 4, wherein the swing loading unit comprises a swing driving member, a swing connecting member and a swing limiting assembly, wherein a driving end of the swing driving member is hinged to one end of the swing connecting member, and the other end of the swing connecting member 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.
8. The wind power sliding bearing performance testing device according to claim 7, wherein 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 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.
9. The wind power sliding bearing performance testing device according to any one of claims 1 to 4, further comprising a detection component for detecting the performance of the test 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 wind power sliding bearing performance testing device according to any one of claims 1 to 4, 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 arranged along the radial direction of 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 |
|---|---|---|---|
| CN202111427675.0A CN114235400B (en) | 2021-11-24 | 2021-11-24 | Wind-powered electricity generation slide bearing capability test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111427675.0A CN114235400B (en) | 2021-11-24 | 2021-11-24 | Wind-powered electricity generation slide bearing capability test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114235400A true CN114235400A (en) | 2022-03-25 |
| CN114235400B CN114235400B (en) | 2024-03-19 |
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| CN115876469A (en) * | 2022-12-16 | 2023-03-31 | 重庆凯测试验设备有限责任公司 | Sliding bearing simulation loading device |
| CN116929764A (en) * | 2023-07-31 | 2023-10-24 | 上海大学 | Measuring equipment for dynamic oil film thickness and pressure of wind power sliding bearing |
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| CN114235400B (en) | 2024-03-19 |
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