Testing device for testing service life of photovoltaic tracking support part
By designing a test device including base, rotating shaft, counterweight device and sand leakage device, the problems of high life test cost and inaccurate test results of photovoltaic tracking bracket components are solved, and accuracy is achieved under multiple operating conditions Lifespan test.
Patent Information
- Application Number
- CN202420924304.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The life test cost of existing photovoltaic tracking bracket parts is high, and it is difficult to simulate the operation conditions under various operating conditions, which affects the accuracy of the test results.
A test device including a base, a rotating shaft, a counterweight device and a sand leakage device was designed. The rotating shaft is driven by a driving device, the counterweight device simulates weight bearing, and the sand leakage device simulates wind and sand intrusion, simplifies the device structure and realizes it on the base. Life test of bearing to be tested.
It reduces the testing cost, improves the accuracy of test results and results, and can simulate the operation of the bearing to be tested under various operating conditions, simplifying the device structure.
Smart Images
Figure CN222318423U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of testing devices, in particular to a testing device for testing the life of components of a photovoltaic tracking bracket. Background Art
[0002] The design life of a photovoltaic bracket is generally 25 years. Therefore, its performance stability, durability and reliability are particularly important. Plastic bearings, push rods and dampers (shock absorbers) are important components of tracking photovoltaic brackets. Their performance, life and reliability are directly related to the photovoltaic bracket and even the safety of photovoltaic power stations.
[0003] In the related art, the life test of components of traditional photovoltaic tracking brackets is generally carried out by assembling key components (for example, plastic bearings, push rods or dampers, etc.) onto the photovoltaic bracket. However, preparing a photovoltaic bracket requires processing, installation, and foundation construction steps, resulting in high testing costs, and there is room for improvement. Utility Model Content
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a test device for testing the life of photovoltaic tracking bracket components, wherein the test device for testing the life of photovoltaic tracking bracket components has a simple structure and can reduce the test cost.
[0005] According to an embodiment of the utility model, a testing device for testing the life of components of a photovoltaic tracking bracket includes: a base, the base having a first bearing seat; a rotating shaft, the rotating shaft is arranged on the base, and the rotating shaft is suitable for rotating with the first bearing seat through a bearing to be tested; a counterweight device, the counterweight device is arranged on the rotating shaft and rotatably connected to the rotating shaft, and is used to apply a load to the bearing to be tested; a sand leakage device, the sand leakage device is connected to the base, the sand leakage device has a sand leakage port, and the sand leakage port is located above the first bearing seat; a driving device, the driving device is arranged on the base, and the driving device is connected to the rotating shaft, and is used to drive the rotating shaft to rotate.
[0006] According to the test device for testing the life of components of a photovoltaic tracking bracket according to the embodiment of the utility model, a driving device is arranged on a base, and the driving device is connected to a rotating shaft, so that the driving device can drive the rotating shaft to rotate, so as to drive the bearing to be tested to rotate relative to the first bearing seat, thereby realizing a life test of the bearing to be tested, and compared with the solution of assembling the bearing to be tested on a photovoltaic bracket for testing, the device structure can be simplified and the testing cost can be reduced; by arranging a sand leakage device above the first bearing seat and by arranging a counterweight device on the rotating shaft, the operation of the bearing to be tested under multiple different working conditions can be simulated, thereby realizing a life test of the bearing to be tested under multiple different working conditions, which can improve the test effect of the bearing to be tested and the accuracy of the test result.
[0007] According to some embodiments of the utility model, the sand leakage device includes: a mounting plate and a sand leakage box, the mounting plate is arranged on the base, the sand leakage box is connected to the mounting plate and is located above the first bearing seat, the top of the sand leakage box is open, and the sand leakage port is arranged on the bottom wall of the sand leakage box.
[0008] In some examples, in a vertical direction and along a direction from the top of the sand drain box toward the bottom of the sand drain box, at least a portion of a side wall of the sand drain box extends obliquely toward a direction close to the sand drain opening.
[0009] In some examples, the side wall includes: a first side wall and a second side wall, the first side wall extends in a vertical direction, one side of the second side wall is connected to the first side wall, the other side of the second side wall is connected to the bottom wall, and the second side wall is located on a side of the first side wall close to the bottom wall, and in the vertical direction and along the direction of the first side wall toward the bottom wall, the second side wall extends obliquely toward the direction close to the sand leakage outlet.
[0010] In some examples, the sand leakage opening extends along an extension direction of the rotating shaft, and in the extension direction of the rotating shaft, a length of the sand leakage opening is greater than a length of the first bearing seat.
[0011] In some examples, the sand leakage openings include a plurality of openings, and in the extension direction of the rotating shaft, the distance between two of the sand leakage openings that are farthest apart is greater than the length of the first bearing seat.
[0012] According to some embodiments of the utility model, the first bearing seat includes: a mounting rod and a sleeve shell, the mounting rod is connected to the base, the sleeve shell is connected to the mounting rod, the bearing to be tested is suitable for being installed in the sleeve shell, and along the extension direction of the rotating shaft, the length of the sleeve shell is less than the length of the sand leakage box.
[0013] In some examples, along the extension direction of the rotating shaft, the radial dimension of the casing gradually decreases from the middle of the casing toward the end of the casing.
[0014] According to some embodiments of the utility model, the testing device for testing the life of components of a photovoltaic tracking bracket also includes: a first limiter, the first limiter is arranged on the rotating shaft, along the extension direction of the rotating shaft, the first limiter is located on at least one side of the first bearing seat, and the first limiter is suitable for contacting with the bearing to be tested, so as to limit the bearing to be tested.
[0015] According to some embodiments of the utility model, the testing device for testing the life of components of a photovoltaic tracking bracket also includes: a counterweight bearing and a second bearing seat, the counterweight bearing is sleeved on the rotating shaft, the second bearing seat is suitable for rotating with the rotating shaft through the counterweight bearing, and the counterweight device includes: a counterweight barrel and a counterweight block, the counterweight barrel is connected to the second bearing seat, and the counterweight block is suitable for being placed in the counterweight barrel.
[0016] According to some embodiments of the utility model, the testing device for testing the life of components of a photovoltaic tracking bracket also includes: a second limiter, the second limiter is arranged on the rotating shaft, along the extension direction of the rotating shaft, the second limiter is located on both sides of the second bearing seat, and the second limiter is suitable for contacting with the counterweight bearing to limit the second bearing seat.
[0017] According to some embodiments of the utility model, the driving device includes: an electric cylinder and a swing arm, the electric cylinder is arranged on the base, the swing arm is arranged on the rotating shaft and located at the outer periphery of the rotating shaft, and the electric cylinder is connected to the swing arm.
[0018] According to some embodiments of the utility model, the driving device includes: a driving motor and a swing arm, the driving motor is arranged on the base, the swing arm is arranged on the rotating shaft and located at the outer periphery of the rotating shaft, and the driving motor is suitable for being connected to the swing arm through the push rod to be tested.
[0019] According to some embodiments of the utility model, the testing device for testing the life of components of a photovoltaic tracking bracket also includes: a mounting bracket, the mounting bracket is suitable for mounting a damper to be tested, the mounting bracket includes: a first mounting bracket and a second mounting bracket, the first mounting bracket includes: two mounting beams, the two mounting beams are respectively arranged on opposite sides of the radial direction of the rotating shaft and are connected by fasteners to clamp the rotating shaft, the second mounting bracket is arranged on the base, one end of the damper to be tested is rotatably connected to one of the two mounting beams, and the other end of the damper to be tested is rotatably connected to the second mounting bracket.
[0020] In some examples, the base includes: a pedestal, a support beam and a support seat, the support beam is arranged on the pedestal, the support seat is arranged on the top of the support beam, and the first bearing seat and the sand leakage device are both installed on the support seat.
[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0023] Figure 1 is a schematic diagram of the structure of a testing device according to some embodiments of the utility model at a viewing angle;
[0024] Figure 2 yes Figure 1 A magnified view of the structure in the middle;
[0025] Figure 3 is a schematic structural diagram of a testing device according to some embodiments of the utility model at another viewing angle;
[0026] Figure 4 yes Figure 3 A magnified view of the structure in middle B;
[0027] Figure 5 is a schematic structural diagram of a base according to some embodiments of the utility model;
[0028] Figure 6 yes Figure 5 A magnified view of the structure in C;
[0029] Figure 7 is a partial structural schematic diagram of a testing device according to some embodiments of the utility model;
[0030] Figure 8 yes Figure 7 a cross-sectional view of the structure shown;
[0031] Fig. 9 It is a schematic diagram of the structure of a sand drain box according to some embodiments of the utility model;
[0032] Fig.10 is a schematic structural diagram of a testing device according to other embodiments of the utility model;
[0033] Fig.11 is a schematic structural diagram of a testing device according to some other embodiments of the utility model;
[0034] Fig.12 yes Fig.11 A magnified view of the structure in D;
[0035] Fig.13 It is a schematic diagram of the structure of the mounting bracket according to some embodiments of the utility model.
[0036] Reference numerals:
[0037] Testing device 100, bearing to be tested 101, push rod to be tested 102, damper to be tested 103,
[0038] Base 10, base 11, support beam 12, adjustment hole 121, support seat 13, matching hole 131,
[0039] Rotating shaft 20,
[0040] Counterweight device 30, counterweight barrel 31, counterweight block 32,
[0041] Sand drain device 40, mounting plate 41, sand drain box 42, first side wall 421, second side wall 422, bottom wall 423,
[0042] Driving device 50, electric cylinder 51, swing arm 52,
[0043] The first bearing seat 61, the mounting rod 611, the sleeve 612, the second bearing seat 62, the counterweight bearing 63,
[0044] The first limiting member 71, the second limiting member 72,
[0045] Mounting bracket 80 , first mounting bracket 81 , mounting beam 811 , second mounting bracket 82 . DETAILED DESCRIPTION
[0046] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0047] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0049] Reference below Figure 1-Figure 13 A testing device 100 for testing the life of components of a photovoltaic tracking bracket according to an embodiment of the present invention is described.
[0050] like Figure 1-Figure 13 As shown, according to an embodiment of the utility model, a test device 100 for testing the life of components of a photovoltaic tracking bracket includes: a base 10, a rotating shaft 20, a counterweight device 30, a sand leakage device 40 and a driving device 50. The base 10 has a first bearing seat 61, and a bearing 101 to be tested can be installed in the first bearing seat 61. The rotating shaft 20 is arranged on the base 10, and the rotating shaft 20 can be rotatably matched with the first bearing seat 61 through the bearing 101 to be tested. The driving device 50 is arranged on the base 10, and the driving device 50 is connected to the rotating shaft 20, and then the driving device 50 can drive the rotating shaft 20 to rotate, so as to drive the bearing 101 to be tested to rotate relative to the first bearing seat 61, which is conducive to realizing the life test of the bearing 101 to be tested.
[0051] The counterweight device 30 is arranged on the rotating shaft 20, and the counterweight device 30 is rotatably connected to the rotating shaft 20. The counterweight device 30 can apply a load to the bearing 101 to be tested, which is beneficial to simulating the operation of the bearing 101 to be tested under actual working conditions such as its own weight, wind load and snow load in the photovoltaic tracking bracket, and is further beneficial to realizing the life test of the bearing 101 to be tested under multiple different working conditions, and is beneficial to improving the accuracy of the test results.
[0052] The sand leakage device 40 is connected to the base 10, and the sand leakage device 40 has a sand leakage port, which is located above the first bearing seat 61 (such as Figure 1 As shown above, the sand leakage device 40 is loaded with fine sand, and the fine sand can be leaked through the sand leakage port to between the bearing to be tested 101 and the first bearing seat 61. For example, the fine sand can first leak onto the rotating shaft 20, the bearing to be tested 101 and the first bearing seat 61, and then splash between the bearing to be tested 101 and the first bearing seat 61 in multiple directions, which is beneficial to simulate the operation of the bearing to be tested 101 under the actual outdoor wind and sand intrusion conditions in the photovoltaic tracking bracket, and further conducive to realizing the life test of the bearing to be tested 101 under multiple different working conditions, and is beneficial to improving the accuracy of the test results.
[0053] According to the test device 100 for testing the life of components of a photovoltaic tracking bracket according to the embodiment of the utility model, a driving device 50 is arranged on the base 10, and the driving device 50 is connected to the rotating shaft 20, so that the driving device 50 can drive the rotating shaft 20 to rotate, so as to drive the bearing 101 to be tested to rotate relative to the first bearing seat 61, so as to realize the life test of the bearing 101 to be tested, and compared with the scheme of assembling the bearing 101 to be tested on the photovoltaic bracket for testing, the device structure can be simplified and the testing cost can be reduced; by arranging a sand leakage device 40 above the first bearing seat 61, and by arranging a counterweight device 30 on the rotating shaft 20, the operation of the bearing 101 to be tested under multiple different working conditions can be simulated, and then the life test of the bearing 101 to be tested under multiple different working conditions can be realized, the test effect of the bearing 101 to be tested can be improved, and the accuracy of the test result can be improved.
[0054] like Figure 7 and Fig. 9 As shown, according to some embodiments of the present invention, the sand leakage device 40 includes: a mounting plate 41 and a sand leakage box 42, the mounting plate 41 is arranged on the base 10, the sand leakage box 42 is connected to the mounting plate 41, and the sand leakage box 42 is located above the first bearing seat 61 (such as Figure 7 As shown above, the top of the sand leakage box 42 is open, and the sand leakage port is arranged on the bottom wall 423 of the sand leakage box 42, so that the fine sand in the sand leakage box 42 can leak through the sand leakage port to between the bearing to be tested 101 and the first bearing seat 61.
[0055] For example, fine sand can first leak onto the rotating shaft 20, the bearing to be tested 101 and the first bearing seat 61, and then splash between the bearing to be tested 101 and the first bearing seat 61 in multiple directions, which is beneficial to simulate the operation of the bearing to be tested 101 under the actual outdoor wind and sand intrusion conditions in the photovoltaic tracking bracket, and further facilitate the life test of the bearing to be tested 101 under multiple different working conditions, and help to improve the accuracy of the test results.
[0056] It should be noted that the number of the mounting plates 41 can be two, and the two mounting plates 41 are both arranged on the base 10. The two mounting plates 41 can be arranged along a direction (for example, Figure 7 The front and rear directions shown in the figure) are arranged at intervals, and the front and rear sides of the sand leakage box 42 (such as Figure 7 The front and rear sides as shown are respectively connected to a mounting plate 41, so that the two mounting plates 41 cooperate to support the sand leakage box 42. On the basis of ensuring the stability of the sand leakage box 42, the height of the sand leakage box 42 can be increased, thereby preventing the sand leakage box 42 from interfering with the first bearing seat 61, and at the same time, sufficient falling space can be reserved for the fine sand, that is, when the fine sand leaks onto the rotating shaft 20, the bearing to be tested 101 or the first bearing seat 61, it can be ensured that the fine sand splashes between the bearing to be tested 101 and the first bearing seat 61.
[0057] like Fig. 9 As shown, in some examples, in the vertical direction (such as Fig. 9 In the up-down direction shown in FIG. 4 , and in the direction from the top of the sand drain box 42 toward the bottom of the sand drain box 42 (as shown in FIG. Fig. 9 In the direction from top to bottom as shown in the figure, at least a part of the side wall of the sand drain box 42 extends obliquely toward the direction close to the sand drain opening, so that the side wall can guide the fine sand to flow toward the sand drain opening, which can improve the smoothness of the sand drain box 42 and improve the reliability of the sand drain device 40; for example, with the front side of the sand drain box 42 (such as Fig. 9 For example, at least a portion of the side wall extends backward in a top-to-bottom direction to be located at the rear side of the sand drain box 42 (such as the front side shown in FIG. Fig. 9 Taking the side wall of the rear side as shown in the figure as an example, at least a portion of the side wall extends forwardly and obliquely in a direction from top to bottom.
[0058] Among them, the entire side wall can extend in a direction inclined to the vertical direction, which can improve the guiding effect on the flow of fine sand and improve the smoothness of sand leakage in the sand leakage box 42. Alternatively, a part of the side wall can extend in a direction inclined to the vertical direction. On the basis of ensuring that the side wall guides the fine sand to flow to the sand leakage port, the space inside the sand leakage box 42 can be increased, which is beneficial to increase the loading capacity of the sand leakage box 42 for fine sand, avoiding the operator from adding fine sand to the sand leakage box 42 during the test, and ensuring the continuity of the test of the bearing 101 to be tested.
[0059] It can be understood that the surface of the part of the side wall that is inclined to the vertical direction can be a flat surface, which is easy to process and can reduce manufacturing costs; the surface of the part of the side wall that is inclined to the vertical direction can be a curved surface. On the basis of ensuring that the side wall guides the fine sand to flow to the sand leakage outlet, the space inside the sand leakage box 42 can be increased, which is beneficial to increase the capacity of the sand leakage box 42 and ensure the continuity of the test of the bearing 101 to be tested.
[0060] like Fig. 9 As shown, in some examples, the side wall includes: a first side wall 421 and a second side wall 422, the first side wall 421 is vertically extending (eg Fig. 9 The second side wall 422 extends in the vertical direction as shown in FIG. Fig. 9 The upper side shown in FIG. 4 is connected to the first side wall 421, and the other side of the second side wall 422 (as shown in FIG. Fig. 9 The second side wall 422 is located on a side of the first side wall 421 close to the bottom wall 423 (as shown in the figure). Fig. 9 lower side shown).
[0061] In the vertical direction (such as Fig. 9 423 and along the first side wall 421 toward the bottom wall 423 (as shown in the vertical direction). Fig. 9 The second side wall 422 extends obliquely toward the sand draining opening, and the second side wall 422 can guide the fine sand to flow toward the sand draining opening, thereby improving the smoothness of the sand draining box 42 and improving the reliability of the sand draining device 40; for example, the second side wall 422 is located at the front side of the sand draining box 42 (such as Fig. 9 As an example, the second side wall 422 extends backwards in a direction from top to bottom to be located at the rear side of the sand drain box 42 (such as the front side shown in FIG. Fig. 9 Taking the second side wall 422 of the rear side as shown as an example, the second side wall 422 extends forwardly and obliquely in a direction from top to bottom.
[0062] It can be understood that the surface of the second side wall 422 can be a flat surface, which is easy to process and can reduce manufacturing costs; the surface of the second side wall 422 can be a curved surface, which can increase the space inside the sand leakage box 42 on the basis of ensuring that the second side wall 422 guides the fine sand to flow to the sand leakage outlet, which is beneficial to increase the capacity of the sand leakage box 42 and ensure the continuity of the test of the bearing 101 to be tested.
[0063] like Figure 1 , Figure 8 and Fig. 9 As shown, in some examples, the sand drain port can be along the extension direction of the rotating shaft 20 (such as Figure 1The shaft 20 extends in the left and right directions as shown, and in the extending direction of the shaft 20, the length of the sand leakage port is greater than the length of the first bearing seat 61, so that fine sand can leak through the sand leakage port onto the shaft 20, the bearing 101 to be tested and the first bearing seat 61, thereby ensuring that the fine sand leaks between the bearing 101 to be tested and the first bearing seat 61, thereby fully simulating the operation of the bearing 101 to be tested under the condition of outdoor wind and sand intrusion, and improving the test effect of the bearing 101 to be tested.
[0064] The number of the sand draining openings can be multiple, and the multiple sand draining openings can be arranged on the bottom wall 423 along an extension direction perpendicular to the rotation axis 20 (eg Fig. 9 The arrangement of the two bearings 101 and 102 in the front-to-back direction as shown in the figure can ensure that the fine sand leaks more evenly onto the rotating shaft 20, the bearing 101 to be tested and the first bearing seat 61, so as to further improve the test effect of the bearing 101 to be tested.
[0065] like Figure 1 , Figure 8 and Fig. 9 As shown, in some examples, the sand drain port includes a plurality of sand drain ports extending in the direction of the rotation shaft 20 (eg Figure 1 In the left and right directions shown in the figure, the distance between the two farthest sand leakage ports is greater than the length of the first bearing seat 61, so that fine sand can leak through the sand leakage ports to the rotating shaft 20, the bearing to be tested 101 and the first bearing seat 61, thereby ensuring that the fine sand leaks between the bearing to be tested 101 and the first bearing seat 61, thereby fully simulating the operation of the bearing to be tested 101 under the condition of outdoor wind and sand intrusion, and improving the test effect of the bearing to be tested 101.
[0066] Among them, the multiple sand leakage openings can be arranged at intervals along the extension direction of the rotating shaft 20; or, the multiple sand leakage openings can be divided into multiple groups, each group of sand leakage openings includes multiple sand leakage openings, and the multiple sand leakage openings in each group of sand leakage openings are arranged at intervals along the extension direction of the rotating shaft 20, and the multiple groups of sand leakage openings are arranged on the bottom wall 423 along the extension direction perpendicular to the rotating shaft 20 (such as Fig. 9 The arrangement of the two bearings 101 and 102 in the front-to-back direction as shown in the figure can ensure that the fine sand leaks more evenly onto the rotating shaft 20, the bearing 101 to be tested and the first bearing seat 61, so as to further improve the test effect of the bearing 101 to be tested.
[0067] like Figure 7 and Figure 8As shown, according to some embodiments of the utility model, the first bearing seat 61 includes: a mounting rod 611 and a sleeve shell 612, the mounting rod 611 is connected to the base 10, the sleeve shell 612 is connected to the mounting rod 611, the bearing to be tested 101 can be installed in the sleeve shell 612, and the bearing to be tested 101 can rotate relative to the sleeve shell 612, the rotating shaft 20 can be rotated with the sleeve shell 612 through the bearing to be tested 101, and then the driving device 50 can drive the rotating shaft 20 to rotate, so as to drive the bearing to be tested 101 to rotate relative to the sleeve shell 612, and the life test of the bearing to be tested 101 can be realized.
[0068] Along the extension direction of the rotating shaft 20 (eg Figure 8 The length of the casing 612 is less than the length of the sand drain box 42, which is beneficial for making a part of the plurality of sand drain openings located on opposite sides of the casing 612 (such as Figure 8 Alternatively, it is advantageous to locate a portion of the sand leakage port on opposite sides of the casing 612 (such as Figure 8 The left and right sides shown in the figure) allow the fine sand to leak through the sand leaking port onto the rotating shaft 20, the bearing to be tested 101 and the first bearing seat 61, thereby ensuring that the fine sand can leak between the bearing to be tested 101 and the first bearing seat 61, so as to fully simulate the operation of the bearing to be tested 101 under the condition of outdoor wind and sand intrusion, and improve the test effect of the bearing to be tested 101.
[0069] It should be noted that the number of the mounting rods 611 can be two, and the two mounting rods 611 are both arranged on the base 10, and the two mounting plates 41 can be arranged along a direction (for example, Figure 7 The front and rear sides of the casing 612 (as shown in the front and rear directions) are arranged at intervals, and the front and rear sides of the casing 612 (as shown in the front and rear directions) are arranged at intervals. Figure 7 The front and rear sides (as shown) are respectively connected to a mounting rod 611, so that the two mounting rods 611 cooperate to support the casing 612, which can improve the stability of the casing 612 and further help improve the rotation stability of the shaft 20.
[0070] like Figure 8 As shown, in some examples, along the extension direction of the rotation axis 20 (such as Figure 8 The radial dimension of the casing 612 gradually decreases from the middle of the casing 612 toward the end of the casing 612, as shown in the left and right directions. Figure 8 As shown, taking the left side of the casing 612 as an example, in the direction from the middle of the casing 612 toward the end of the casing 612 (such as Figure 8 The radial dimension of the casing 612 gradually decreases, that is, the outer surface of the casing 612 gradually extends in a direction close to the rotation axis of the rotating shaft 20. Taking the right side of the casing 612 as an example, in the direction from the middle of the casing 612 toward the end of the casing 612 (as shown in FIG. Figure 8The radial dimension of the sleeve 612 gradually decreases (from left to right as shown), that is, the outer surface of the sleeve 612 gradually extends in an inclined direction toward the rotation axis of the shaft 20.
[0071] By designing the radial dimension of the casing 612 to gradually decrease in the direction from the middle of the casing 612 toward the end of the casing 612, it is possible to guide the flow of fine sand, which is beneficial for the fine sand to fall along the outer surface of the casing 612 onto the rotating shaft 20 and the bearing to be tested 101, and further beneficial for the fine sand to enter between the bearing to be tested 101 and the casing 612, which can fully simulate the operation of the bearing to be tested 101 under the condition of outdoor wind and sand intrusion, and can improve the test effect of the bearing to be tested 101.
[0072] It is understandable that if Figure 8 As shown, the left and right parts of the outer surface of the casing 612 can be respectively flat surfaces with different extension directions, which are easy to process based on the guidance of the flow of fine sand and are beneficial to reducing manufacturing costs; the outer surface of the casing 612 can be a curved surface, which can improve the guiding effect on the flow of fine sand, and based on the rotational cooperation between the bearing 101 to be tested and the inner surface of the casing 612, it is beneficial to reduce the volume of the casing 612 to save space.
[0073] like Figure 4 As shown, according to some embodiments of the present invention, the testing device 100 for testing the life of components of a photovoltaic tracking bracket further includes: a first stopper 71, the first stopper 71 is disposed on the rotating shaft 20, and extends along the extension direction of the rotating shaft 20 (such as Figure 4 In the left and right directions shown in the figure, the first limit member 71 is located on at least one side of the first bearing seat 61, and the first limit member 71 can contact the bearing to be tested 101 to limit the bearing to be tested 101, which can prevent the bearing to be tested 101 from being separated from the first bearing seat 61, thereby improving the stability of the test of the bearing to be tested 101.
[0074] It should be noted that each bearing to be tested 101 may correspond to a first stopper 71, and the bearing to be tested 101 may include a bearing body and a stopper end, wherein the stopper end is arranged at the rotation axis of the bearing body (such as Figure 4 side (as shown in the left and right directions) Figure 4 The radial dimension of the limiting end is greater than the radial dimension of the bearing body, and the limiting end can contact the sleeve 612, so as to limit the bearing 101 to be tested in one direction.
[0075] And the first limit member 71 is in contact with the limit end. Taking the limit end located on the left side of the bearing body as an example, the first limit member 71 can be located on the left side of the bearing to be tested 101. Taking the limit end located on the right side of the bearing body as an example, the first limit member 71 can be located on the right side of the bearing to be tested 101, which can achieve the limitation of the bearing to be tested 101 in another direction. Thus, the bearing to be tested 101 can be limited in two opposite directions, preventing the bearing to be tested 101 from being separated from the first bearing seat 61, and improving the stability of the test of the bearing to be tested 101.
[0076] Alternatively, each bearing 101 to be tested may correspond to two first stoppers 71, the two first stoppers 71 are in contact with the bearing 101 to be tested respectively, and the two first stoppers 71 are located at the rotation axis of the bearing 101 to be tested (such as Figure 4 The left and right directions shown) on opposite sides (such as Figure 4 The left side and the right side shown in the figure can limit the bearing 101 to be tested in two opposite directions, prevent the bearing 101 to be tested from being separated from the first bearing seat 61, and improve the stability of the test of the bearing 101 to be tested.
[0077] like Figure 5 , Figure 6 and Figure 7 As shown, in some examples, the base 10 includes: a base 11, a support beam 12 and a support seat 13, the support beam 12 is arranged on the base 11, the support seat 13 is arranged at the top of the support beam 12, the first bearing seat 61 and the sand leakage device 40 are both installed on the support seat 13, wherein the mounting plate 41 of the sand leakage device 40 can be connected to the support seat 13, the mounting rod 611 of the first bearing seat 61 can be connected to the support seat 13, and the two mounting rods 611 can be located between the two mounting plates 41, based on the normal operation of the test device 100, the space in the two mounting plates 41 can be fully utilized to save space.
[0078] It should be noted that the lower end of the mounting plate 41 (such as Figure 7 The lower end shown in FIG. 1 has a bent section, which is connected to the support seat 13 and is located above the support seat 13 (as shown in FIG. 1 ). Figure 7 The mounting rod 611 is connected to the support seat 13 through the bending section, and the mounting rod 611 is located above the bending section (as shown in FIG. Figure 7 As shown above), the mounting rod 611, the mounting plate 41 and the support seat 13 can be aligned in the vertical direction (as shown in FIG. Figure 7 The two components are stacked in the up and down direction as shown to further save space.
[0079] At the same time, the correlation between the mounting rod 611, the mounting plate 41 and the support seat 13 can be improved, thereby improving the support effect of the sand leakage device 40, improving the working stability of the sand leakage device 40, and improving the support effect of the first bearing seat 61, and improving the stability of the rotation of the rotating shaft 20, thereby improving the stability of the test of the bearing 101 to be tested, and improving the test effect of the bearing 101 to be tested.
[0080] like Figure 6 and Figure 7 As shown, in some examples, the support beam 12 may have a plurality of adjustment holes 121, and the plurality of adjustment holes 121 may be arranged along the vertical direction (eg Figure 6 The support seat 13 is arranged at intervals in the upper and lower directions as shown, and the support seat 13 can have at least one matching hole 131. The support seat 13 can be connected to the support beam 12 by a fastener, that is, the fastener passes through a matching hole 131 and an adjustment hole 121 in sequence to fix the support seat 13.
[0081] Among them, after removing the fasteners between the support seat 13 and the support beam 12, the height position of the support seat 13 can be changed, so that a matching hole 131 on the support seat 13 can correspond to the positions of multiple different adjustment holes 121 on the support beam 12, and then the support seat 13 and the support beam 12 are connected by fasteners, so that the height of the support seat 13 can be adjusted, which is conducive to realizing the life test of components of different sizes and the life test of a variety of different components.
[0082] like Figure 1 and Figure 2 As shown, according to some embodiments of the utility model, the test device 100 for testing the life of components of a photovoltaic tracking bracket also includes: a counterweight bearing 63 and a second bearing seat 62, the counterweight bearing 63 is sleeved on the rotating shaft 20, and the second bearing seat 62 can be rotatably matched with the rotating shaft 20 through the counterweight bearing 63. On the basis that the rotating shaft 20 can rotate normally, a load can be applied to the bearing 101 to be tested, and the operation of the bearing 101 to be tested under the working conditions of its own weight, wind load, snow load, etc. in the photovoltaic tracking bracket can be simulated, so as to realize the life test of the bearing 101 to be tested under multiple different working conditions, and the accuracy of the test results can be improved.
[0083] The balancing weight device 30 includes: a balancing weight barrel 31 and a balancing weight block 32. The balancing weight barrel 31 can be connected to the second bearing seat 62, and the balancing weight block 32 can be placed in the balancing weight barrel 31. By increasing or decreasing the number of balancing weight blocks 32 in the balancing weight barrel 31, the load applied by the balancing weight device 30 to the bearing to be tested 101 can be increased or decreased, and the operation of the bearing to be tested 101 under different test requirements can be simulated. The life test of the bearing to be tested 101 under multiple different working conditions can be realized, and the accuracy of the test results can be improved.
[0084] In addition, by replacing the counterweight block 32 in the counterweight barrel 31 with a counterweight block 32 of larger mass, or replacing the counterweight block 32 in the counterweight barrel 31 with a counterweight block 32 of smaller mass, the load applied by the counterweight device 30 to the bearing to be tested 101 can be increased or decreased, the operation of the bearing to be tested 101 under different test requirements can be simulated, the life test of the bearing to be tested 101 under multiple different working conditions can be realized, and the accuracy of the test results can be improved.
[0085] like Figure 1 As shown, in some examples, the number of counterweight devices 30 can be multiple, and the multiple counterweight devices 30 are symmetrically arranged in the rotation direction of the rotating shaft 20. On the one hand, it can ensure that the center of gravity of the rotating shaft 20 is located in its own middle part, and the rotating shaft 20 can be prevented from moving relative to the first bearing seat 61 during rotation, which can improve the stability of the rotation of the rotating shaft 20, and thus improve the stability of the test of the testing device 100. On the other hand, it can prevent the rotating shaft 20 from breaking due to excessive gravity applied by the counterweight device 30 at one end of the rotating shaft 20, and can increase the service life of the rotating shaft 20 to ensure the smooth progress of the testing work of the testing device 100.
[0086] like Figure 2 and Figure 4 As shown, according to some embodiments of the present invention, the testing device 100 for testing the life of components of a photovoltaic tracking bracket further includes: a second stopper 72, the second stopper 72 is disposed on the shaft 20, and extends along the extension direction of the shaft 20 (such as Figure 2 The second stopper 72 is located on both sides of the second bearing seat 62 (as shown in the left and right directions). Figure 2 The left and right sides shown in the figure), that is, each counterweight bearing 63 may correspond to two second limit members 72, and the two second limit members 72 may contact the counterweight bearing 63 respectively, and the two second limit members 72 are located at the counterweight bearing 63 in its rotation axis (such as Figure 4 on both sides (as shown in the left and right directions) Figure 4 The left and right sides shown in the figure can limit the counterweight bearing 63 in two opposite directions to prevent the counterweight bearing 63 from being separated from the second bearing seat 62, thereby improving the stability of the test device 100.
[0087] like Figure 1 As shown, according to some embodiments of the utility model, the driving device 50 includes: an electric cylinder 51 and a swing arm 52, the electric cylinder 51 can be arranged on the base 10, the swing arm 52 can be arranged on the rotating shaft 20, and the swing arm 52 is located at the outer periphery of the rotating shaft 20, the electric cylinder 51 can be connected to the swing arm 52, and then the electric cylinder 51 can drive the swing arm 52 to swing back and forth around the rotation axis of the rotating shaft 20 through reciprocating telescopic motion, so as to drive the bearing 101 to be tested to perform reciprocating cyclic motion around its own rotation axis through the rotation of the rotating shaft 20, so as to realize the life test of the core components of the photovoltaic tracking bracket (for example, plastic bearings, push rods and dampers, etc.).
[0088] It should be noted that, by setting the electric cylinder 51 to drive the rotating shaft 20 to rotate, compared with the solution of using driving components in actual products such as rotary reducers and push rods to drive the rotating shaft 20 to rotate, the rotation speed of the rotating shaft 20 can be increased, and then the test speed of the test device 100 on the core components can be increased. On the basis of ensuring the test effect of the core components, the test cycle of the core components can be shortened.
[0089] like Fig.10 As shown, according to some other embodiments of the utility model, the driving device 50 includes: a driving motor and a swing arm 52, the driving motor can be arranged on the base 10, the swing arm 52 can be arranged on the rotating shaft 20, and the swing arm 52 is located at the outer periphery of the rotating shaft 20, the driving motor can be connected to the swing arm 52 through the push rod 102 to be tested, and then the driving motor can drive the push rod 102 to be tested to perform reciprocating telescopic motion to drive the swing arm 52 to swing back and forth around the rotation axis of the rotating shaft 20, so as to drive the bearing 101 to be tested to perform reciprocating cyclic motion around its own rotation axis through the rotation of the rotating shaft 20, which can simulate the actual operation of the push rod 102 to be tested under load, realize the life test of the push rod 102 to be tested, and improve the accuracy of the test results.
[0090] like Figure 11-13 As shown, according to some other embodiments of the present invention, the testing device 100 for testing the life of photovoltaic tracking bracket components also includes: a mounting bracket 80, the mounting bracket 80 can be installed with the damper 103 to be tested, the mounting bracket 80 includes: a first mounting bracket 81 and a second mounting bracket 82, the first mounting bracket 81 includes: two mounting beams 811, the two mounting beams 811 are respectively arranged on opposite sides of the rotating shaft 20 in the radial direction (for example, Fig.12 The two mounting beams 811 are connected by fasteners, which can clamp the rotating shaft 20, thereby fixing the first mounting bracket 81 on the rotating shaft 20, and improving the connection effect between the first mounting bracket 81 and the rotating shaft 20.
[0091] The second mounting bracket 82 can be disposed on the base 10. Specifically, the second mounting bracket 82 can be disposed on the support beam 12. Fig.12 The upper end shown in FIG. 1 may be connected to a side of the rotating shaft 20 (such as Fig.12 Alternatively, one end of the damper 103 to be tested (such as Fig.12 The upper end shown in FIG. 1 may be connected to the other side of the rotating shaft 20 (such as Fig.12 The mounting beam 811 of the damper to be tested is rotatably connected to the lower side of the damper 103 (as shown in FIG. Fig.12 The lower end shown in FIG. 8 ) may be rotatably connected to a second mounting bracket 82 .
[0092] Among them, the driving device 50 can drive the rotating shaft 20 to rotate, so as to drive the bearing to be tested 101 to rotate relative to the first bearing seat 61, so that the damper to be tested 103 absorbs vibration, and the life test of the damper to be tested 103 can be realized. Furthermore, the operator can control the movement speed, frequency and number of times of the driving device 50 to simulate the actual operation of the damper to be tested 103, so as to realize the life test of the damper to be tested 103 and improve the accuracy of the test results.
[0093] In the present application, the bearing 101 to be tested is a plastic bearing of a real photovoltaic tracking bracket, the push rod 102 to be tested is a push rod of a real photovoltaic tracking bracket, and the damper 103 to be tested is a damper (shock absorber) of a real photovoltaic tracking bracket.
[0094] Other configurations and operations of the test device 100 according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here. In the description of the utility model, "first feature" and "second feature" may include one or more of the features. Among them, the up-down direction, left-right direction and front-back direction are based on the up-down direction, left-right direction and front-back direction shown in the figure.
[0095] In the description of the present utility model, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature "above", "above" and "above" a second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0097] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A testing device (100) for testing the life of components of a photovoltaic tracking bracket, characterized in that: include: A base (10), wherein the base (10) has a first bearing seat (61); A rotating shaft (20), the rotating shaft (20) being arranged on the base (10), the rotating shaft (20) being adapted to be rotatably matched with the first bearing seat (61) through the bearing to be tested (101); A weight balancing device (30), the weight balancing device (30) being arranged on the rotating shaft (20) and rotatably connected to the rotating shaft (20), and being used for applying a load to the bearing to be tested (101); A sand leakage device (40), the sand leakage device (40) being connected to the base (10), the sand leakage device (40) having a sand leakage opening, the sand leakage opening being located above the first bearing seat (61); A driving device (50), wherein the driving device (50) is disposed on the base (10), and the driving device (50) is connected to the rotating shaft (20) and is used to drive the rotating shaft (20) to rotate.
2. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 1, characterized in that: The sand leakage device (40) comprises: a mounting plate (41) and a sand leakage box (42), wherein the mounting plate (41) is arranged on the base (10), the sand leakage box (42) is connected to the mounting plate (41) and is located above the first bearing seat (61), the top of the sand leakage box (42) is open, and the sand leakage port is arranged on the bottom wall (423) of the sand leakage box (42).
3. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 2, characterized in that: In the vertical direction and along the direction from the top of the sand drain box (42) toward the bottom of the sand drain box (42), at least a portion of the side wall of the sand drain box (42) extends obliquely toward the direction close to the sand drain opening.
4. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 3, characterized in that: The side wall comprises: a first side wall (421) and a second side wall (422), the first side wall (421) extending in a vertical direction, one side of the second side wall (422) connected to the first side wall (421), the other side of the second side wall (422) connected to the bottom wall (423), and the second side wall (422) is located on a side of the first side wall (421) close to the bottom wall (423), and in a vertical direction and along a direction from the first side wall (421) toward the bottom wall (423), the second side wall (422) extends obliquely toward a direction close to the sand leaking opening.
5. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 2, characterized in that: The sand leakage opening extends along the extension direction of the rotating shaft (20), and in the extension direction of the rotating shaft (20), the length of the sand leakage opening is greater than the length of the first bearing seat (61).
6. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 2, characterized in that: The sand leakage openings include a plurality of openings, and in the extension direction of the rotating shaft (20), the distance between the two sand leakage openings that are farthest apart is greater than the length of the first bearing seat (61).
7. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 2, characterized in that: The first bearing seat (61) comprises: a mounting rod (611) and a casing (612); the mounting rod (611) is connected to the base (10); the casing (612) is connected to the mounting rod (611); the bearing to be tested (101) is suitable for being installed in the casing (612); along the extension direction of the rotating shaft (20), the length of the casing (612) is less than the length of the sand leakage box (42).
8. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 7, characterized in that: Along the extension direction of the rotating shaft (20), the radial dimension of the casing (612) gradually decreases in a direction from the middle of the casing (612) toward the end of the casing (612).
9. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 1, characterized in that: Also includes: A first limiting member (71), wherein the first limiting member (71) is disposed on the rotating shaft (20), and along the extension direction of the rotating shaft (20), the first limiting member (71) is located on at least one side of the first bearing seat (61), and the first limiting member (71) is suitable for contacting the bearing to be tested (101) to limit the bearing to be tested (101).
10. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 1, characterized in that: Also includes: A counterweight bearing (63) and a second bearing seat (62), wherein the counterweight bearing (63) is sleeved on the rotating shaft (20), and the second bearing seat (62) is suitable for rotating with the rotating shaft (20) through the counterweight bearing (63). The counterweight device (30) includes: a counterweight barrel (31) and a counterweight block (32), wherein the counterweight barrel (31) is connected to the second bearing seat (62), and the counterweight block (32) is suitable for being placed in the counterweight barrel (31).
11. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 10, characterized in that: Also includes: A second limiting member (72), wherein the second limiting member (72) is disposed on the rotating shaft (20), and along the extension direction of the rotating shaft (20), the second limiting member (72) is located on both sides of the second bearing seat (62), and the second limiting member (72) is suitable for contacting with the counterweight bearing (63) to limit the second bearing seat (62).
12. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 1, characterized in that: The driving device (50) comprises: an electric cylinder (51) and a swing arm (52); the electric cylinder (51) is arranged on the base (10); the swing arm (52) is arranged on the rotating shaft (20) and is located on the outer periphery of the rotating shaft (20); and the electric cylinder (51) is connected to the swing arm (52).
13. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 1, characterized in that: The driving device (50) comprises: a driving motor and a swing arm (52); the driving motor is arranged on the base (10); the swing arm (52) is arranged on the rotating shaft (20) and is located at the outer periphery of the rotating shaft (20); the driving motor is suitable for being connected to the swing arm (52) via a push rod (102) to be tested.
14. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to claim 1, characterized in that: Also includes: A mounting bracket (80), wherein the mounting bracket (80) is suitable for mounting a damper (103) to be tested, and the mounting bracket (80) comprises: a first mounting bracket (81) and a second mounting bracket (82), wherein the first mounting bracket (81) comprises: two mounting beams (811), wherein the two mounting beams (811) are respectively arranged on opposite sides of the rotating shaft (20) in a radial direction and are connected by fasteners to clamp the rotating shaft (20), and the second mounting bracket (82) is arranged on the base (10), wherein one end of the damper (103) to be tested is rotatably connected to one of the two mounting beams (811), and the other end of the damper (103) to be tested is rotatably connected to the second mounting bracket (82).
15. The testing device (100) for testing the life of components of a photovoltaic tracking bracket according to any one of claims 1 to 14, characterized in that: The base (10) comprises: a base (11), a support beam (12) and a support seat (13); the support beam (12) is arranged on the base (11); the support seat (13) is arranged at the top end of the support beam (12); and the first bearing seat (61) and the sand leakage device (40) are both installed on the support seat (13).