Fan blade test bench and loading device track thereof

Abstract

The utility model discloses a fan blade test bed and a loading device track thereof, which belong to the technical field of fan blade performance test equipment, the fan blade test bed comprises a pouring groove and a track arranged in the pouring groove, and steel plates are arranged on the side wall of the pouring groove in the extension direction of the pouring groove; at least two connecting plates are welded between the rails and the corresponding steel plates; the connecting plates are arranged at intervals in the extending direction of the track, and reinforcing steel bars are arranged between the connecting plates on the same side. The steel plate is pre-embedded in the side wall of the pouring groove, and the track and the steel plate are welded through the connecting plate, so that the track and the pouring groove form an integrated structure, and the overall tensile strength is improved; and then the steel bars are arranged between the connecting plates on the same side, so that the connecting strength between the track and the pouring layer can be enhanced after subsequent secondary pouring, and the bearing capacity of the track is better improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan blade performance testing equipment, and particularly relates to a fan blade test bench and a track of its loading device. Background Art

[0002] In the existing fan blade test bench, a ground anchoring device is used as the connection point for vertical tensile loading. The ground anchoring device is anchored on the track of the blade loading device, and a control motor is used to pull a loading cable to adjust the loading load of the blade. During use, whether the track connection structure of the blade loading device is reliably stressed is the key to the structural safety of the test bench; the larger the size of the blade to be detected, the higher the requirement for the loading capacity of the blade test bench.

[0003] However, the tracks currently used in fan blade test benches are usually vehicle collision test tracks. These tracks mainly play a guiding role and are subjected to relatively small vertical upward tensile forces during use. Therefore, the anti-pulling bearing capacity of such track structures is weak and cannot well withstand the vertical tensile forces generated during the fan blade testing process. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: how to provide a fan blade test bench and a track of its loading device to improve the anti-pulling bearing capacity of the track, so as to meet the performance detection requirements of large-capacity fan blades.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is:

[0006] A track of a loading device includes a casting groove and a track arranged in the casting groove. On the side walls of the casting groove in the extending direction of the casting groove, steel plates are provided on both sides;

[0007] At least two connecting plates are welded between the track and the corresponding steel plates;

[0008] The connecting plates are arranged at intervals along the extending direction of the track, and steel bars are arranged between the connecting plates on the same side.

[0009] Further, transverse reinforcing ribs are preset in the side walls of the casting groove;

[0010] The steel plates are connected to the casting groove through the transverse reinforcing ribs.

[0011] Further, each steel plate is connected to the casting groove through at least three transverse reinforcing ribs;

[0012] In the depth direction of the casting groove, the transverse reinforcing ribs are arranged at intervals.

[0013] Further, at least two oblong holes are provided on each connecting plate;

[0014] The oblong holes between the connecting plates on the same side of the track are in one-to-one correspondence;

[0015] The steel bars pass through the corresponding oblong holes to be fixed between the connecting plates.

[0016] Furthermore, the cross-section of the track is convex, and an opening is provided at the top of the protruding end of the cross-section;

[0017] The orientation of the opening is the same as the orientation of the notch of the pouring groove;

[0018] Stiffening ribs are provided on both sides in the extending direction of the track;

[0019] The stiffening ribs are connected to the steel plate through a connecting plate.

[0020] Furthermore, it further includes a pouring layer;

[0021] When the track is assembled with the pouring groove, the pouring layer is filled between the track and the pouring groove.

[0022] Furthermore, a fan blade test bench is also provided, including a base main body, a fan blade positioning seat, a cable, a ground anchoring device, and the loading device track described above;

[0023] The fan blade positioning seat is arranged on the working surface of the base main body;

[0024] The loading device track is embedded in the base main body, and the opening of the loading device track is arranged facing the working surface of the base main body;

[0025] The fan blade positioning seat is arranged at one end in the length direction of the loading device track;

[0026] The ground anchoring device is slidably connected to the loading device track;

[0027] When the fan blade to be detected is connected to the fan blade positioning seat, the loading device track and the fan blade to be detected are in the same vertical plane, and the fan blade to be detected is connected to the ground anchoring device through a cable.

[0028] Furthermore, the number of the loading device tracks is at least three;

[0029] In the width direction of the fan blade to be detected, the loading device tracks are arranged at intervals.

[0030] The beneficial effects of the present utility model are as follows: For the loading device track provided by the present utility model, steel plates are embedded in the side walls of the casting trough, and the track is welded to the steel plates through connecting plates, so that the track and the casting trough form an integral structure, thereby improving the overall tensile strength; then, steel bars are arranged between the connecting plates on the same side, which can enhance the connection strength between the track and the casting layer after subsequent secondary casting, and further better enhance the bearing capacity of the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The following shows a schematic structural view of the loading device track according to the specific embodiment of the present utility model;

[0032] Figure 2 The following shows a schematic structural view of the loading device track (when filled with a casting layer) according to the specific embodiment of the present utility model;

[0033] Figure 3 The following shows a schematic structural view of the fan blade test bench according to the specific embodiment of the present utility model;

[0034] Reference Numeral Description:

[0035] 1. Casting trough; 11. Steel plate; 12. Transverse stiffener;

[0036] 2. Track; 21. Opening; 22. Stiffening rib;

[0037] 3. Connecting plate; 31. Elongated circular hole;

[0038] 4. Steel bar;

[0039] 5. Casting layer;

[0040] 6. Fan blade test bench; 61. Main body of the bearing platform; 62. Fan blade positioning seat; 63. Cable; 64. Ground anchoring device;

[0041] 7. Fan blade body. SPECIFIC EMBODIMENTS

[0042] To describe in detail the technical content, achieved objectives and effects of the present utility model, the following is described in conjunction with the embodiments and with reference to the accompanying drawings.

[0043] The most crucial concept of the present utility model is: steel plates are embedded in the side walls of the casting trough, and the track is welded to the steel plates through connecting plates, so that the track and the casting trough form an integral structure, thereby improving the overall tensile strength; and steel bars are arranged between the connecting plates on the same side, which can enhance the connection strength between the track and the casting layer after subsequent secondary casting, and further better enhance the bearing capacity of the track.

[0044] Please refer to Figures 1 to 3, the track of the loading device provided by the present utility model includes a pouring groove 1 and a track 2 arranged in the pouring groove 1. Along the extending direction of the pouring groove 1, steel plates 11 are provided on the side walls of the pouring groove 1;

[0045] At least two connecting plates 3 are welded between the track 2 and the corresponding steel plates 11;

[0046] The connecting plates 3 are arranged at intervals along the extending direction of the track 2, and steel bars 4 are provided between the connecting plates 3 on the same side.

[0047] Specifically, the steel plate 11 can be either a continuous and uninterrupted integral plate or be distributed segmentally and evenly on the side wall of the pouring groove 1. When the steel plate 11 is arranged at intervals along the extending direction of the pouring groove 1 in the latter way, not only can each connecting plate 3 have a steel plate 11 adapted to it to ensure the connection strength, but also the material cost during the installation and pouring of the track 2 can be reduced; the width of the steel plate 11 in the present utility model is preferably less than the depth of the pouring groove 1.

[0048] As can be seen from the above description, the beneficial effects of the present utility model are as follows: a track of a loading device is provided. By pre-burying the steel plate 11 on the side wall of the pouring groove 1 and welding the track 2 and the steel plate 11 through the connecting plate 3, the track 2 and the pouring groove 1 can be formed into an integral structure, which can not only improve the overall tensile strength, but also improve the stability of the track 2 during the subsequent pouring process, avoiding the track 2 from shifting due to poor stability, resulting in the track of the loading device after pouring not meeting the test requirements; and by further arranging the steel bars 4 between the connecting plates 3 on the same side, the connection strength between the track 2 and the pouring layer 5 can be enhanced after the subsequent secondary pouring, thereby better enhancing the bearing capacity of the track 2.

[0049] Furthermore, transverse reinforcing ribs 12 are preset in the side wall of the pouring groove 1;

[0050] The steel plate 11 is connected to the pouring groove 1 through the transverse reinforcing ribs 12.

[0051] Furthermore, each steel plate 11 is connected to the pouring groove 1 through at least three transverse reinforcing ribs 12;

[0052] In the depth direction of the pouring groove 1, the transverse reinforcing ribs 12 are arranged at intervals.

[0053] As can be seen from the above description, through the design of setting the transverse reinforcing ribs 12 and further specifying the number of the transverse reinforcing ribs 12, the connection strength between the steel plate 11 and the pouring groove 1 can be effectively improved. Thus, after the track 2 and the steel plate 11 are connected and the track 2 is subjected to an upward vertical pulling force, it can be avoided that the guide rail and the steel plate 11 are simultaneously pulled out of the pouring groove 1 due to the weak tensile bearing capacity of the steel plate 11, thereby affecting the normal detection work.

[0054] Furthermore, at least two oblong holes 31 are provided on each connecting plate 3;

[0055] The oblong holes 31 between the connecting plates 3 on the same side of the track 2 are opposite to each other one by one;

[0056] Steel bars 4 penetrate through the corresponding oblong holes 31 to be fixed between the connecting plates 3.

[0057] As can be seen from the above description, this design makes a specific transformation to the structure of the connecting plate 3. By providing the corresponding oblong holes 31 on the connecting plate 3, it can provide structural support for the steel bars 4 to penetrate and be arranged between the connecting plates 3. Thus, after the subsequent pouring work is completed, the connection effect between the steel bars 4 and the pouring medium can be enhanced, and further the overall anti-pulling bearing capacity can be improved.

[0058] Furthermore, the cross-section of the track 2 is convex-shaped, and an opening 21 is provided at the top of the protruding end of the cross-section;

[0059] The orientation of the opening 21 is the same as that of the notch of the pouring groove 1;

[0060] Stiffening ribs 22 are provided on both sides in the extending direction of the track 2;

[0061] The stiffening ribs 22 are connected to the steel plate 11 through the connecting plate 3.

[0062] Specifically, in the extending direction of the track 2, the stiffening ribs 22 are arranged on the track 2 at intervals.

[0063] As can be seen from the above description, this design makes specific transformations to the composition structure of the track 2 and the positional relationship between the track 2 and the pouring groove 1. The convex-shaped track 2 with the opening 21 can not only facilitate the subsequent pulling rope structure to extend into the interior of the track 2, but also can be well clamped in the track 2 when the pulling rope applies an upward vertical pulling force to the track 2, avoiding affecting the normal detection work due to the disengagement between the pulling rope structure and the track 2. At the same time, by providing the corresponding stiffening ribs 22 on the track 2, the anti-deformation ability of the track 2 can be better improved, and thus the tensile bearing capacity of the track 2 can be further enhanced.

[0064] Furthermore, the above-mentioned loading device track further includes a pouring layer 5;

[0065] When the track 2 and the pouring groove 1 are assembled, the pouring layer 5 is filled between the track 2 and the pouring groove 1.

[0066] Specifically, the pouring layer 5 is made of any commercially available material that can improve the overall strength of the structure after solidification, such as a concrete layer.

[0067] As can be seen from the above description, the pouring layer 5 serves as the medium connecting the track 2 and the pouring groove 1. After the pouring layer 5 solidifies, the overall strength can be effectively improved. That is, the connection strength between the pouring layer 5 and the pouring groove 1 can be effectively enhanced through the steel plate 11 and the connecting plate 3. Also, since the track 2 and the pouring groove 1 are connected by the connecting plate 3, when the track 2 is subjected to an upward vertical pulling force, the pouring groove 1, the steel plate 11, the connecting plate 3, the concrete layer, and the track 2 can be mutually traction, thereby achieving the effect of improving the anti-pulling bearing capacity of the track.

[0068] The present utility model further provides a fan blade test bench, which includes a bearing platform main body 61, a fan blade positioning seat 62, a cable 63, a ground anchoring device 64, and the loading device track of any one of the above.

[0069] The fan blade positioning seat 62 is arranged on the working surface of the bearing platform main body 61.

[0070] The loading device track is embedded in the bearing platform main body 61, and the opening 21 of the loading device track faces the working surface of the bearing platform main body 61.

[0071] The fan blade positioning seat 62 is arranged at one end in the length direction of the loading device track.

[0072] The ground anchoring device 64 is slidably connected to the loading device track.

[0073] When the fan blade to be tested is connected to the fan blade positioning seat 62, the loading device track and the fan blade to be tested are located in the same vertical plane, and the fan blade to be tested is connected to the ground anchoring device 64 through the cable 63.

[0074] Specifically, a corresponding motor is further arranged on the ground anchoring device 64 to release (reduce the pulling force on the fan blade) and wind up (increase the pulling force on the fan blade) the cable 63 by the rotation of the motor.

[0075] As can be seen from the above description, this design makes specific improvements to the composition structure of the fan blade test bench 6, thereby providing structural support for the fan blade test bench 6 to simulate the actual load-bearing situation of the fan blade.

[0076] Furthermore, the number of loading device tracks is at least three.

[0077] In the width direction of the fan blade to be tested, the loading device tracks are arranged at intervals.

[0078] As described above, the design further improves the composition structure of the fan blade test bench 6. By adding a loading device track, it is convenient for the staff to set the ground anchoring device 64 on different loading device tracks according to actual needs, so that the fan blade test bench 6 of the present utility model can simulate various different force-bearing scenarios, enabling the finally obtained experimental data to truly reflect the performance of the fan blade, and further facilitating the staff to make timely adjustments to the process parameters during the production and manufacturing process to improve the quality of the fan blade.

[0079] The loading device track of the present utility model can assist in the performance detection work of the fan blade.

[0080] Please refer to Figures 1 to 2 , the first embodiment of the present utility model is:

[0081] A loading device track, including a pouring groove 1, a pouring layer 5, and a track 2 arranged in the pouring groove 1. On the side walls of the pouring groove 1 in the extending direction of the pouring groove 1, steel plates 11 are provided; at least two connecting plates 3 are welded between the track 2 and the corresponding steel plates 11; the connecting plates 3 are arranged at intervals along the extending direction of the track 2, and steel bars 4 are provided between the connecting plates 3 on the same side.

[0082] Transverse reinforcing ribs 12 are preset in the side walls of the pouring groove 1; the steel plates 11 are connected to the pouring groove 1 through the transverse reinforcing ribs 12; each steel plate 11 is connected to the pouring groove 1 through three transverse reinforcing ribs 12; in the depth direction of the pouring groove 1, the transverse reinforcing ribs 12 are arranged at intervals; two oblong holes 31 are provided on each connecting plate 3; the oblong holes 31 between the connecting plates 3 on the same side of the track 2 are opposite to each other; the steel bars 4 penetrate through the corresponding oblong holes 31 to be fixed between the connecting plates 3.

[0083] The cross-section of the track 2 is convex, and an opening 21 is provided at the top of the protruding end of the cross-section; the orientation of the opening 21 is the same as the orientation of the notch of the pouring groove 1; stiffening ribs 22 are provided on both sides of the extending direction of the track 2; the stiffening ribs 22 are connected to the steel plates 11 through the connecting plates 3.

[0084] When the track 2 and the pouring groove 1 are assembled, the pouring layer 5 is filled between the track 2 and the pouring groove 1.

[0085] Please refer to Figure 3 , the second embodiment of the present utility model is:

[0086] A fan blade test bench includes a bearing platform main body 61, a fan blade positioning seat 62, a cable 63, a ground anchoring device 64, and a loading device track in the first embodiment; the fan blade positioning seat 62 is arranged on the working surface of the bearing platform main body 61; the loading device track is embedded in the bearing platform main body 61, and the opening 21 of the loading device track faces the working surface of the bearing platform main body 61; the fan blade positioning seat 62 is arranged at one end in the length direction of the loading device track; the ground anchoring device 64 is slidably connected to the loading device track; when the fan blade to be detected is connected to the fan blade positioning seat 62, the loading device track and the fan blade to be detected are in the same vertical plane, and the fan blade to be detected is connected to the ground anchoring device 64 through the cable 63; the number of the loading device tracks is three; in the width direction of the fan blade to be detected, the loading device tracks are arranged at intervals.

[0087] The working principle of the present utility model is as follows:

[0088] Installation and pouring stage of the loading device track:

[0089] First, the transverse reinforcing rib 12 is pre-buried in the bearing platform main body 61, and the steel plate 11 is embedded on the side wall of the pouring groove 1. At the same time, one end of the transverse reinforcing rib 12 is welded to the steel plate; then, the track 2 is preliminarily placed in the pouring groove 1 by hoisting, and the track 2 is welded to the steel plate 11 through the connecting plate 3; then, the reinforcing bar 4 is placed in the long circular hole 31 on the connecting plate 3 on the same side and the connecting plate 3 and the reinforcing bar 4 are welded; finally, the corresponding pouring material is filled between the pouring groove 1 and the track 2, and after solidification, a pouring layer 5 is formed to complete the installation and pouring work of the loading device track.

[0090] Detection stage of the fan blade:

[0091] First, the fan blade to be detected is fixed on the fan blade positioning seat 62; then, according to the actual detection requirements, the staff slides the corresponding number of ground anchoring devices 64 into the corresponding loading device tracks through the corresponding T-shaped bolts and moves the ground anchoring devices 64 to the specified detection positions; then, the two ends of the cable 63 are respectively fixed to the fan blade to be detected and the ground anchoring device 64; finally, the relevant tightening device arranged on the ground anchoring device 64 is started to tighten or loosen the cable 63, so as to realize the pulling of the fan blade and achieve the effect of simulating the actual working condition.

[0092] In summary, for the loading device track provided by the present utility model, steel plates are embedded in the side walls of the pouring trough, and the track is welded to the steel plates through connecting plates, so that the track and the pouring trough form an integral structure. This not only can improve the overall tensile strength, but also can improve the stability of the track during the subsequent pouring process, avoiding the track from shifting due to poor stability and making the loaded device track after pouring unable to meet the test requirements. Moreover, by arranging steel bars between the connecting plates on the same side, the connection strength between the track and the pouring layer can be enhanced after the subsequent secondary pouring, thereby better enhancing the bearing capacity of the track. Specific improvements have also been made to the composition structure of the fan blade test bench to provide structural support for the fan blade test bench to simulate the actual loading conditions of the fan blade.

[0093] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the relevant technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A loading device track, comprising a casting trough and a track arranged in the casting trough, characterized in that: In the extension direction of the casting trough, steel plates are provided on the side walls of the casting trough; At least two connecting plates are welded between the rail and the corresponding steel plate; The connecting plates are arranged at intervals along the extension direction of the track, and steel bars are arranged between the connecting plates on the same side.

2. The loading device track according to claim 1, characterized in that: The side walls of the casting trough are preset with transverse reinforcing ribs; The steel plate is connected to the casting trough through transverse reinforcing ribs.

3. The loading device track according to claim 2, characterized in that: Each of the steel plates is connected to the casting trough by at least three transverse reinforcing ribs; In the depth direction of the casting trough, transverse reinforcing ribs are arranged at intervals.

4. The loading device track according to claim 1, characterized in that: Each of the connecting plates is provided with at least two oblong holes; The oblong holes between the connecting plates on the same side of the track are opposite to each other; The steel bars penetrate the corresponding oblong holes to be fixed between the connecting plates.

5. The loading device track according to claim 1, characterized in that: The cross section of the track is in a convex shape, and an opening is provided at the top of the convex end of the cross section; The orientation of the opening is consistent with the orientation of the notch of the casting trough; Stiffening ribs are provided on both sides of the extension direction of the track; The stiffening rib is connected to the steel plate through a connecting plate.

6. The loading device track according to claim 1, characterized in that: It also includes the pouring layer; When the track is assembled with the casting trough, the casting layer is filled between the track and the casting trough.

7. A fan blade test bench, characterized in that: It comprises a bearing platform body, a fan blade positioning seat, a cable, a ground anchoring device, and a loading device track according to any one of claims 1 to 6; The fan blade positioning seat is arranged on the working surface of the support platform body; The loading device track is embedded in the platform body, and the opening of the loading device track is arranged toward the working surface of the platform body; The fan blade positioning seat is arranged at one end of the loading device track in the length direction; The ground anchoring device is slidably connected to the track of the loading device; When the wind turbine blade to be tested is connected to the wind turbine blade positioning seat, the loading device track and the wind turbine blade to be tested are located in the same vertical plane, and the wind turbine blade to be tested is connected to the ground anchoring device through a cable.

8. The wind turbine blade test bench according to claim 7, characterized in that: The number of the loading device tracks is at least three; In the width direction of the wind turbine blade to be inspected, the loading device tracks are arranged at intervals.

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