CN213022788U - Rain erosion test device and system - Google Patents
Rain erosion test device and system Download PDFInfo
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- CN213022788U CN213022788U CN202021498519.4U CN202021498519U CN213022788U CN 213022788 U CN213022788 U CN 213022788U CN 202021498519 U CN202021498519 U CN 202021498519U CN 213022788 U CN213022788 U CN 213022788U
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Abstract
The utility model belongs to the technical field of the coating rain erosion resistance capability test technique and specifically relates to a rain erosion test device and system is related to, and rain erosion test device includes integral type double wing blade and drive assembly, wherein: the integrated double-wing blade is centrosymmetric around the center of the integrated double-wing blade and can rotate around the center in a horizontal plane, and rain erosion sample plate mold fixing mechanisms are arranged at the positions, close to the two ends, of the front edge of the integrated double-wing blade; the driving assembly is used for driving the integrated double-wing blade to rotate. Compared with the prior art, the utility model discloses blade processing is simple, with low costs, and the poor 1kg that reaches of both ends weight still can steady operation, and the fault-tolerant rate is high, can realize the continuous test of coating rain erosion resistance performance under the speed more than 207 ms, more can realize the continuous test of coating rain erosion resistance performance under the speed more than 300 ms through improving.
Description
Technical Field
The utility model belongs to the technical field of the coating rain erosion resistance capability test technique and specifically relates to a rain erosion test device and system are related to.
Background
For equipment operating at higher speeds in exposed environments (e.g., high-speed iron, wind turbine blades, etc.), topcoat erosion has been a concern, and rain erosion damage is currently considered the most dominant failure factor. In the development process of the high-speed rail and wind power generator blade coating, the rain erosion resistance of the coating in a high-speed state is evaluated, and the method has important significance for the development of the coating.
Currently, the rain erosion resistance of coatings is evaluated mostly by two ways: one is to make a sample plate by coating the paint, and then to stand still for direct rain test. The method has the advantages that firstly, the detection time is long, secondly, the method is only suitable for the rain erosion resistance test of the conventional coating, and is not suitable for the coating which works at a high speed. And the other rain erosion tester adopts a three-blade type. The rain erosion tester is provided with a three-blade structure as shown in figure 1, a sample is fixed on the blade structure during testing, the three-blade structure is driven by a motor to rotate, the working condition of high-speed operation of the coating is simulated, and three coating samples can be tested at one time. However, in long-term use, the applicant has found that the following problems exist with this tester:
(1) the three-blade structure is relatively complex in modeling, the diameter of the blade needs to be increased when the three-blade structure reaches a certain speed, the processing of the large blade by the existing technology becomes very difficult when the diameter reaches a meter level, and the three blades of the three-blade structure are difficult to be positioned on the same circumferential plane and are uniformly distributed. The current three-blade configuration relies substantially on import and is costly, resulting in up to 400 million testers per unit.
(2) In order to bring the three vanes as far as possible into the same circumferential plane, the vanes need to be thickened, which also puts higher demands on the drive mechanism. At a certain driving power, the rotation speed is also lower.
(3) The existing three-blade rain erosion tester has low fault-tolerant rate, generally speaking, the tester can bear weight difference of only 30g in the test process, and the asymmetry caused by exceeding the value can damage a motor or cause safety accidents, even the coating in the test process can fall off to cause abnormal work. Thus, the test is essentially performed with a shut down every 15 minutes.
(4) The current three-blade rain erosion tester can only test the rain erosion resistance of the coating at about 160m/s at most under the condition that the diameter of the blade is one meter due to the factors of blade processing, fault tolerance rate and the like. This is increasingly unable to meet the rain erosion resistance performance test requirements of large diameter wind blade coatings.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rain erosion test device and system for overcoming the defects of the prior art. The utility model discloses blade processing is simple, with low costs, and the fault-tolerant rate is high (the both ends weight is poor to reach 1kg still can steady operation), can realize the continuous test of the resistant rain erosion performance of coating under the speed more than 207m/s, more can realize the continuous test of the resistant rain erosion performance of coating under the speed more than 300m/s through improving.
The purpose of the utility model can be realized through the following technical scheme:
a rain erosion test apparatus comprising:
the integrated double-wing blade is centrosymmetric around the center and can rotate around the center in a horizontal plane, the front edge of the integrated double-wing blade is provided with a rain erosion sample plate mold fixing mechanism near the two ends,
and the driving assembly is used for driving the integrated double-wing blade to rotate.
As the utility model discloses preferred technical scheme, the two wing blades of integral type be rectangular plate-like, center department is connected with drive assembly.
As the preferred technical scheme of the utility model, the center department both sides of integral type double wing blade be equipped with center department as the arc extension of centre of a circle.
As the utility model discloses preferred technical scheme, rain erosion model mould fixed establishment constitute by setting up in the recess of integral type double wing blade leading edge and setting up in the recess and along one row at least fixed orifices that blade length direction arranged, the bolt fastening in integral type double wing blade leading edge of rain erosion sample mould through wearing to locate a plurality of fixed orificess.
As the utility model discloses preferred technical scheme, drive assembly set up in integral type double wing blade below, including the mount, be fixed in driving motor on the mount, be used for connecting driving motor and integral type double wing blade's drive mechanism, drive mechanism a rotation axis has, the rotation axis through thickening bearing and mount rotatable coupling to wear to locate integral type double wing blade's center department, be used for driving integral type double wing blade and rotate.
As the preferred technical scheme of the utility model, the device also comprises a rain shielding component, wherein the rain shielding component comprises a rain shielding cover surrounding the fixed frame, a first rain shielding disc arranged at the top of the fixed frame and a second rain shielding disc fixed below the integrated double-wing blades, and the first rain shielding disc and the second rain shielding disc are respectively arranged concentrically with the centers of the integrated double-wing blades; the thickening bearing is arranged between the first rain shielding plate and the second rain shielding plate.
As the preferred technical scheme of the utility model, first rain shield dish upper surface from center department to edge downward sloping gradually.
As the utility model discloses preferred technical scheme, the device still includes cable protection pipeline, cable protection pipeline one end be connected with the rain shade, the other end accesss to power supply department.
The utility model discloses the second aspect provides a rain erosion test system, including drenching the rain frame, measure rain ware, water drainage tank and rain erosion test device, rain erosion test device set up in drenching the rain frame, be provided with the multiunit on the drenching the rain frame and be located rain erosion test device top and surround the rain shower nozzle of rain erosion test device, the volume rain ware be used for acquireing and drench the rain volume, water drainage tank set up around a week outside the drenching the rain frame.
As the utility model discloses preferred technical scheme, rain erosion test system set up in the enclosable space that has the enclosure all around, and the water drainage tank sets up along the enclosure medial surface.
As the utility model discloses preferred technical scheme, the shower nozzle set up in rain erosion test device top 0.5 ~ 10 m.
The utility model discloses a rain erosion test system at the during operation, with rain erosion model mould fix on the rain erosion model mould fixed establishment at blade leading edge both ends, then start drive assembly, drive the high-speed rotation of integral type double wing blade, forest and shower nozzle spray high-speed pivoted blade simultaneously, simulate the rain erosion condition under the high-speed operating mode of coating to the rain erosion resistance performance to coating tests.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the integrated double-wing blade with the rectangular plate shape is adopted, the processing is simple, the symmetry of the blade can be easily realized through simple processing, the problems of difficulty in processing and high cost of a three-blade structure are avoided, the blade is easier to process into a larger diameter, and the weight is lighter than the three-blade structure, so that the rotating speed is promoted more easily, and the high-speed working condition is simulated more easily.
(2) The utility model discloses a blade structure is at the operation in-process, and the atress is more even, can bear bigger unbalance, through the test, under the poor condition that reaches 1kg of both ends weight, still can the steady operation. This makes the utility model discloses can accomplish an experiment without shutting down, compare in three-blade structure and just will shut down once every 15 minutes, though this application one-time test volume is less, nevertheless efficiency of software testing still is higher than three-blade structure on the whole.
(3) Generally speaking, the utility model discloses can realize the coating rain erosion resistance capability test under the speed more than 207m/s, the cooperation is with the coating rain erosion resistance capability test under the thick bearing more can realize the speed more than 300 m/s. The ultimate speed is much higher than a three-blade configuration.
Drawings
FIG. 1 is a schematic view of a prior art three-bladed configuration.
Fig. 2 is a schematic structural diagram of the rain erosion test device according to embodiment 1 of the present invention.
Fig. 3 is a schematic view of the rain erosion test device according to embodiment 1 of the present invention.
Fig. 4 is a schematic structural diagram of a drive assembly of the rain erosion test device according to embodiment 1 of the present invention.
Fig. 5 is a schematic structural diagram of a rain erosion test system according to embodiment 1 of the present invention.
In the figure, 1 is two wing blades of integral type, 11 is rain erosion model mould fixed establishment, 111 is the recess, 112 is the fixed orifices, 12 is the arc extension, 21 is the mount, 22 is driving motor, 23 is the axis of rotation, 24 is thickening bearing, 31 is the rain shade, 32 is first rain shielding plate, 33 is second rain shielding plate, 4 is rain erosion sample mould, 5 is cable protection pipeline, 6 is the frame of drenching with the rain, 61 is the shower nozzle, 7 is the rain gauge, 8 is the water drainage tank, 9 is the enclosure.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Example 1
A kind of rain erosion test device, as shown in fig. 2-3, including integral type double wing blade 1 and driving assembly, wherein: the integrated double-wing blade 1 is centrosymmetric around the center and can rotate around the center in a horizontal plane, and rain erosion sample plate mold fixing mechanisms 11 are arranged at the positions, close to the two ends, of the front edge of the integrated double-wing blade 1; the driving assembly is used for driving the integrated double-wing blade 1 to rotate.
In this embodiment, the integrated double wing blade 1 is preferably rectangular plate-shaped, and the center thereof is connected to the driving assembly. Adopt the two wing blades of integral type 1 that is rectangular plate-like, processing is simple, can realize the symmetry of blade easily through simple processing, has avoided three blade structure processing difficulty, problem with high costs, and more easily processing becomes bigger diameter (the diameter can reach two meters or more) moreover, and weight is lighter than three blade structure to be favorable to promoting slew velocity more, simulate high-speed operating mode more easily. Further preferably, arc-shaped extension parts 12 with the center as the center are arranged on two sides of the center of the integrated double-wing blade 1. The arc-shaped extension parts 12 on the two sides of the blade form a circular structure in the center of the blade, so that the blade is favorable for improving the installability under the condition of not increasing the weight of the blade too much, and the connection stability of the driving assembly and the blade is ensured.
In this embodiment, it is preferable that the rain erosion template mold fixing mechanism 11 is composed of a groove 111 provided at the front edge of the integrated double wing blade 1 and at least one row of fixing holes 112 provided in the groove 111 and arranged in the blade length direction, and the rain erosion sample mold 4 is fixed to the front edge of the integrated double wing blade 1 by bolts inserted into the plurality of fixing holes 112. The arrangement of the groove 111 ensures that the bolt for fixing the rain erosion sample mold 4 does not protrude out of the surface of the blade, and avoids the unstable operation phenomenon caused by the protruding bolt head to the airflow disturbance during high-speed movement. Generally, the length of the groove is greater than that of the rain erosion sample mold 4, so that the installation position of the rain erosion sample mold 4 can be conveniently selected according to the situation, and the working conditions under different speeds are simulated by matching the rotating speed of the motor; and secondly, the installation of the rain erosion sample mold 4 with different lengths can be adapted. In this embodiment, the rain etching sample mold 4 can be prepared by using the apparatus for manufacturing a rain etching sample mold disclosed in CN 207657182U.
The utility model discloses in, as shown in fig. 4, drive assembly sets up in integral type double wing blade 1 below, including mount 21, be fixed in the driving motor 22 on the mount 21, be used for connecting the drive mechanism of driving motor 22 and integral type double wing blade 1, drive mechanism has a rotation axis 23, and rotation axis 23 is through adding thick bearing 24 (the higher bearing of specification promptly) and mount 21 rotatable coupling to wear to locate integral type double wing blade 1's center department, be used for driving integral type double wing blade 1 and rotate. The driving motor 22 may be disposed coaxially with the rotating shaft 23, and directly drive the rotating shaft 23, or may drive the rotating shaft 23 to rotate through a speed reducer, a gear, or a belt.
In this embodiment, as shown in fig. 2 to 3, the device further includes a rain shielding assembly, the rain shielding assembly includes a rain shielding cover 31 surrounding the fixing frame 21, a first rain shielding plate 32 disposed on the top of the fixing frame 21, and a second rain shielding plate 33 fixed below the integrated double-wing blade 1, and the first rain shielding plate 32 and the second rain shielding plate 33 are respectively concentrically disposed with the center of the integrated double-wing blade 1; thickened bearing 24 is disposed between first rain shield disk 32 and second rain shield disk 33. The second rain-shielding plate 33 rotates along with the blades, water falling on the upper surface is thrown out by centrifugal motion, the water is prevented from falling on a bearing below, and the first rain-shielding plate 32 further protects equipment in fixing frames such as the driving motor 22. It is further preferred that the upper surface of first rain shield pan 32 is gradually inclined downward from the center toward the edge. Water falling onto first rain shield disk 32 flows down from its edge. It is further preferable that the rain fly 31 and the fixing frame 21 have a shape large at the bottom and small at the top, and the first rain shielding plate 32 is larger than the top size of the rain fly 31. The device still includes cable protection pipeline 5, and 5 one end of cable protection pipeline are connected with rain shade 31, and the other end leads to power supply department, realizes the protection to the cable.
The embodiment further provides a rain erosion test system, as shown in fig. 5, including drenching rain frame 6, rain gauge 7, water drainage tank 8 and above-mentioned rain erosion test device, rain erosion test device sets up in drenching rain frame 6, is provided with the multiunit on the drenching rain frame 6 and is located the rain shower nozzle 61 that the rain erosion test device top just surrounds the rain erosion test device, and rain gauge 7 is used for acquireing the amount of drenching rain, and water drainage tank 8 sets up around the outer week of drenching rain frame 6. But preferred rain erosion test system sets up in the confined space that has enclosure 9 all around, and drainage tank 8 sets up along enclosure 9 medial surfaces, and rain erosion test device places central point department in the enclosure, and further preferably ground reduces from central authorities to the enclosure medial surface gradually, and the rivers that conveniently spray flow into in the drainage tank. The rain spray nozzle 61 can be arranged above the rain erosion test device by 0.5-10 m, and the optimal value is 4m, so that secondary distribution of rainwater is facilitated, and the rain spray nozzle is more uniform.
For prior art's three-blade structure (as shown in fig. 1), the utility model discloses blade processing is simple, with low costs, and the fault-tolerant rate is high (the poor 1kg still can the steady operation that reaches of both ends weight), can realize the continuous test of coating rain erosion resistance performance under the speed more than 207m/s, can realize the continuous test of coating rain erosion resistance performance under the speed more than 300m/s through adopting thick bearing etc..
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. A rain erosion test device, comprising:
the integrated double-wing blade (1) is centrosymmetric around the center and can rotate around the center in a horizontal plane, rain erosion sample plate mold fixing mechanisms (11) are arranged at the front edge of the integrated double-wing blade (1) close to two ends,
the driving assembly is used for driving the integrated double-wing blade (1) to rotate.
2. The rain erosion test device according to claim 1, wherein the integrated double wing blade (1) is in a rectangular plate shape, and the center of the integrated double wing blade is connected with the driving component.
3. The rain erosion test device according to claim 2, wherein arc-shaped extension parts (12) with the center as a circle center are arranged on two sides of the center of the integrated double-wing blade (1).
4. The erosion test device according to claim 1, wherein the erosion pattern mold fixing mechanism (11) comprises a groove (111) provided at the front edge of the integrated double-wing blade (1) and at least one row of fixing holes (112) provided in the groove (111) and arranged along the length direction of the blade, and the erosion sample mold (4) is fixed to the front edge of the integrated double-wing blade (1) by bolts inserted into the plurality of fixing holes (112).
5. The erosion testing device according to claim 1, wherein the driving assembly is disposed below the integrated double-wing blade (1), and comprises a fixing frame (21), a driving motor (22) fixed on the fixing frame (21), and a transmission mechanism for connecting the driving motor (22) and the integrated double-wing blade (1), wherein the transmission mechanism has a rotating shaft (23), and the rotating shaft (23) is rotatably connected with the fixing frame (21) through a thickened bearing (24) and penetrates through the center of the integrated double-wing blade (1) to drive the integrated double-wing blade (1) to rotate.
6. The erosion test device of claim 5, further comprising a rain shield assembly, wherein the rain shield assembly comprises a rain shield (31) enclosed outside the fixed frame (21), a first rain shield disc (32) arranged on the top of the fixed frame (21), and a second rain shield disc (33) fixed below the integrated double-wing blade (1), and the first rain shield disc (32) and the second rain shield disc (33) are respectively arranged concentrically with the center of the integrated double-wing blade (1); the thickened bearing (24) is arranged between the first rain shield disc (32) and the second rain shield disc (33).
7. A rainwash test device according to claim 6, wherein the upper surface of the first rain shield pan (32) is inclined gradually downwards from the centre towards the edges.
8. A rain erosion test device according to claim 6, further comprising a cable protection conduit (5), wherein one end of the cable protection conduit (5) is connected to the rain shade (31), and the other end of the cable protection conduit leads to a power supply.
9. A rain erosion test system is characterized by comprising a rain rack (6), a rain measurer (7), a drainage channel (8) and the rain erosion test device according to any one of claims 1 to 8, wherein the rain erosion test device is arranged in the rain rack (6), a plurality of groups of rain nozzles (61) which are positioned above the rain erosion test device and surround the rain erosion test device are arranged on the rain rack (6), the rain measurer (7) is used for obtaining the amount of rain, and the drainage channel (8) is arranged around the outer circumference of the rain rack (6).
10. The rain erosion testing system of claim 9,
the rain erosion test system is arranged in a closable space with a surrounding wall (9) at the periphery, and the drainage tank (8) is arranged along the inner side surface of the surrounding wall (9);
the rain spray nozzle (61) is arranged above the rain erosion test device by 0.5-10 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021498519.4U CN213022788U (en) | 2020-07-26 | 2020-07-26 | Rain erosion test device and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021498519.4U CN213022788U (en) | 2020-07-26 | 2020-07-26 | Rain erosion test device and system |
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| CN213022788U true CN213022788U (en) | 2021-04-20 |
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| CN202021498519.4U Active CN213022788U (en) | 2020-07-26 | 2020-07-26 | Rain erosion test device and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751270A (en) * | 2020-07-26 | 2020-10-09 | 上海麦加涂料有限公司 | Rain erosion test device and system |
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2020
- 2020-07-26 CN CN202021498519.4U patent/CN213022788U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751270A (en) * | 2020-07-26 | 2020-10-09 | 上海麦加涂料有限公司 | Rain erosion test device and system |
| WO2022021904A1 (en) * | 2020-07-26 | 2022-02-03 | 麦加芯彩新材料科技(上海)股份有限公司 | Rain erosion test device and system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rain erosion test equipment and system Effective date of registration: 20230324 Granted publication date: 20210420 Pledgee: Nantong Zhonghe Financing Guarantee Group Co.,Ltd. Pledgor: Maijiaxincai new material technology (Shanghai) Co.,Ltd. Registration number: Y2023310000086 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230803 Granted publication date: 20210420 Pledgee: Nantong Zhonghe Financing Guarantee Group Co.,Ltd. Pledgor: Maijiaxincai new material technology (Shanghai) Co.,Ltd. Registration number: Y2023310000086 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |