CN216978653U - Mechanical load testing device - Google Patents
Mechanical load testing device Download PDFInfo
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- CN216978653U CN216978653U CN202220035035.9U CN202220035035U CN216978653U CN 216978653 U CN216978653 U CN 216978653U CN 202220035035 U CN202220035035 U CN 202220035035U CN 216978653 U CN216978653 U CN 216978653U
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Abstract
The utility model relates to a mechanical load testing device, belongs to the technical field of photovoltaic module testing, and solves the problems that in the prior art, the mechanical load testing device for a photovoltaic module is low in efficiency and inaccurate in testing result. The device comprises: a loading unit for loading a fluid, the loading unit comprising a plurality of loading sub-units in communication with each other, the loading unit being provided with a plurality of connection ports for injecting or discharging the fluid; a fluid injection line connected to the connection port; and the lifting platform is assembled with the loading unit and drives the loading unit to lift. The device can measure the mechanical load performance of the photovoltaic module quickly and accurately.
Description
Technical Field
The utility model relates to the technical field of photovoltaic module testing, in particular to a mechanical load testing device.
Background
Solar energy is applied more and more widely as clean renewable energy, a photovoltaic module is subjected to wind pressure and snow pressure during operation, and the load capacity of the photovoltaic module becomes one of important factors determining the safe operation of the photovoltaic module, so that the mechanical load capacity of the photovoltaic module needs to be tested before the photovoltaic module leaves a factory, and the load bearing capacity of the photovoltaic module is determined, so that the quality of the photovoltaic module is ensured.
In the prior art, when the mechanical load testing device of the photovoltaic module is used for simulating the bearing capacity of wind pressure and snow pressure in the outdoor environment, a sand bag needs to be manually placed for operation, the requirement of personnel is large, the operation intensity is high, the working efficiency is low, and the test result is not accurate.
SUMMERY OF THE UTILITY MODEL
In view of the above analysis, the present invention aims to provide a mechanical load testing device, so as to solve the problems of low efficiency and inaccurate testing result of the existing mechanical load testing device for photovoltaic modules.
The utility model is mainly realized by the following technical scheme:
the utility model provides a mechanical load testing device, comprising:
a loading unit for loading a fluid, the loading unit comprising a plurality of loading sub-units communicating with each other, the loading unit being provided with a plurality of connection ports for injecting or discharging the fluid;
a fluid injection line connected to the connection port; and
and the lifting platform is assembled with the loading unit and drives the loading unit to lift.
Optionally, the fluid injection pipeline includes a main pipeline and a plurality of branch pipelines which are communicated with the main pipeline and respectively connected with the plurality of connection ports.
Optionally, the connecting ports are uniformly distributed at the bottom of the loading unit.
Optionally, the loading unit further comprises a housing for housing a plurality of the loading sub-units, each loading sub-unit having a multi-sided opening, the loading sub-units being in communication with the loading sub-units through the holes.
Optionally, the device further comprises a load weighing member for weighing the load of the loading unit, the load weighing member is arranged above the loading unit, the loading unit is connected with the load weighing member in a suspension manner, and the load weighing member displays the pressure formed by the loading unit.
Optionally, the load weighing part comprises an electronic scale and a floating platform, the floating platform is arranged on the upper surface of the electronic scale, the electronic scale is arranged above the lifting platform, and the loading unit is connected with the floating platform in a suspension manner.
Optionally, the floating platform comprises a plurality of floating block branches scattered and distributed from the center of the floating platform to the periphery; the device further comprises a plurality of connecting belts, the connecting belts penetrate through the lifting platform, and two ends of the connecting belts are respectively connected with the loading unit and the floating block branches.
Optionally, the electronic scale is connected with the computer through a data line.
Optionally, the device further comprises a frame, and the loading unit and the lifting platform are arranged in the frame.
Optionally, the device further includes a driving assembly, the driving assembly includes a driving member assembled on the frame, a lead screw connected to the driving member, and a guide rod arranged in parallel to the lead screw and assembled in the frame, the lead screw passes through the lifting platform and is in threaded connection with the lifting platform, and the guide rod passes through the lifting platform and is in slidable connection with the lifting platform.
Compared with the prior art, the utility model can realize at least one of the following beneficial effects:
when the mechanical load testing device provided by the embodiment of the utility model is applied to the load test of the photovoltaic module, the lifting platform is controlled to drive the loading unit to apply load to the photovoltaic module, and because the plurality of connecting ports of the loading unit can inject or discharge fluid, and the plurality of loading subunits of the loading unit are mutually communicated, the fluid in the loading unit is more uniformly distributed, so that the stability of the integral structure of the loading unit is ensured, and the uniform load pressure on the photovoltaic module is also ensured, thereby being beneficial to accurately detecting the load capacity of the photovoltaic module. In addition, the lifting platform drives the loading unit to lift to apply load to the photovoltaic module, so that time and labor are saved, and the working efficiency is high.
In the device, the loading unit is provided with the plurality of connecting ports, and fluid is injected or discharged through the plurality of connecting ports, so that the photovoltaic module is uniformly pressed, and different pressures can be conveniently applied to the photovoltaic module.
In the device, the loading unit presses the load weighing piece downwards under the action of gravity, and the load weighing piece displays the pressure formed by the loading unit, so that the pressure of the loading unit on the photovoltaic assembly is controlled, and the device is simple in structure and convenient to operate.
The device can also control the lifting platform through the driving component so as to control the loading unit to ascend or descend to the photovoltaic component, and the load measuring component is connected with the computer and can directly monitor the load capacity, so that automatic operation can be realized.
In the utility model, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the utility model, wherein like reference numerals are used to designate like parts throughout.
Fig. 1 is a schematic structural diagram of a mechanical load testing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a load weighing member according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a loading unit, a fluid injection pipeline and a load weighing member according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a loading unit and a fluid injection pipeline according to an embodiment of the present invention.
Reference numerals:
1-a lifting platform; 2-a loading unit; 201-a housing; 202-a loading subunit; 3-electronic scale; 301-electronic scale base; 4-a floating platform; 5-branch lines; 6-slider branch; 7-a frame; 8, a motor; 9-driving shaft; a 10-right angle diverter; 11-a screw rod; 12-a guide rod; 13-main line; 14-motor mounting plate; 15-screw mounting plate; 16-a photovoltaic module; 17-data line.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the utility model and together with the description, serve to explain the principles of the utility model and not to limit the scope of the utility model.
Traditional photovoltaic module mechanical load testing arrangement is when simulating the outdoor bearing capacity that can bear wind pressure and snow pressure of using of photovoltaic module, need the manual work to place the sand bag and operate, personnel's demand is big, the working strength is high, work efficiency is low, and, the manual work is placing the in-process of sand bag, there is certain clearance between sand bag and the sand bag, can't guarantee that whole photovoltaic module atress is even, and the dynamics that different staff placed and place the position difference and all can cause the photovoltaic module atress inhomogeneous, thereby influence the reliability test result inaccuracy.
Based on this, the present invention provides a mechanical load testing device, as shown in fig. 1 and 4, comprising:
a loading unit 2 for loading a fluid, the loading unit 2 including a plurality of loading sub-units 202 communicating with each other, the loading unit 2 being provided with a plurality of connection ports for injecting or discharging the fluid;
a fluid injection line connected to the connection port; and
and the lifting platform 1 is assembled with the loading unit 2 and drives the loading unit 2 to lift.
In the present invention, "a plurality" means two or more.
In the utility model, fluid is uniformly injected into and/or discharged from the loading unit 2 through the plurality of connecting ports, so that the photovoltaic module is uniformly pressed, and different pressures can be conveniently applied to the photovoltaic module; the plurality of interconnected loading subunits 202 enable the fluid in each loading subunit 202 to flow uniformly, and the fluid is distributed uniformly, so that the whole photovoltaic module is stressed uniformly, and the loading capacity of the photovoltaic module can be detected accurately. Meanwhile, the lifting platform 1 drives the loading unit 2 to lift so as to load the photovoltaic module, so that time and labor are saved, and the working efficiency is high.
In the present invention, in order to facilitate the injection and/or discharge of the fluid, preferably, the fluid injection line may include a main line 13 and a plurality of branch lines 5 communicating with the main line 13 and respectively connected to the plurality of connection ports. The fluid enters the loading unit 2 from multiple directions of the branch pipelines 5 simultaneously, so that the uneven pressure distribution of the photovoltaic module caused by different injection amounts of the fluid at different positions is avoided.
In the present invention, in order to facilitate fluid injection, it is preferable that the plurality of connection ports be uniformly distributed at the bottom of the loading unit 2.
In order to further improve the uniformity of fluid injection, it is preferable that the main pipeline 13 is disposed above the central position of the loading unit 2, and the plurality of branch pipelines 5 are uniformly distributed in a scattering shape around the upper position of the central position of the loading unit 2 and communicate with the bottom of the loading unit 2. The fluid enters the loading unit 2 through each branch line 5 via the main line 13.
In the present invention, the loading unit 2 may further include a housing 201 for filling a plurality of loading subunits 202, the loading subunits 202 have openings on multiple sides, and the loading subunits 202 are communicated with the loading subunits 202 through holes, so that fluids between the loading subunits 202 can flow each other, the distribution uniformity of the fluids in the loading unit 2 is improved, the stability of the overall structure is ensured, and the photovoltaic module is ensured to be stressed uniformly during the test process. The plurality of loading subunits 202 are protected by the housing 201.
The fluid in the present invention may be conventionally selected in the art as long as it is a liquid having fluidity, and for example, the fluid is water.
In the present invention, in order to ensure the service life of the housing 201 (especially the lower surface of the housing 201 to be in contact with the photovoltaic module), the housing 201 is preferably made of a wear-resistant and puncture-resistant material. The material of the housing may be a flexible material, such as plastic or rubber, which enables the plurality of mounting sub-units 202 to impart a uniform loading force to the photovoltaic module.
In the present invention, the shape of the loading unit 2 is not particularly limited as long as the technical effect can be achieved, for example, the loading unit 2 is a rectangular parallelepiped, and accordingly, the loading subunit 202 may be provided as a rectangular parallelepiped.
In order to further improve the convenience of the injection and drainage operations of the device, it is preferable that the device further comprises a water pump, with which the inlet end of the main line 13 communicates. In the preferred embodiment, a water pump provides the power to inject or discharge the fluid in the loading unit 2. Fluid in the loading unit is injected and discharged through the water pump, the pressure of the loading unit on the photovoltaic module is controlled, and the device is convenient to use and applicable to mechanical load tests of photovoltaic modules of different models.
In the present invention, the device may further comprise a load weighing member for weighing the load of the loading unit 2, the load weighing member being disposed above the loading unit 2, the loading unit 2 being in suspended connection with the load weighing member, the load weighing member indicating the pressure developed by the loading unit 2. Further preferably, the main pipeline 13 is arranged on the upper surface of the load weighing member and is arranged perpendicular to the load weighing member, the foot is located at the center point of the upper surface of the load weighing member, and the branch pipeline 5 is communicated with the loading unit 2 after passing through the upper surface of the load weighing member. More preferably, the load weighing member is disposed above the elevating platform 1, the loading unit 2 is disposed below the elevating platform 1, and the branch line 5 penetrates the elevating platform 1.
When the mechanical load testing device of the preferred embodiment is implemented, the photovoltaic module is placed below the loading unit 2 and is at a certain distance from the loading unit 2, fluid passes through the main pipeline 13 and then is introduced into the loading unit 2 through the branch pipelines 5 from multiple directions, the loading unit 2 presses down the load weighing piece under the action of gravity, the load weighing piece displays the weight of the fluid in the loading unit 2, namely the weight of the fluid in the loading unit 2 is monitored through the load weighing piece, and after the target weight is reached, the lifting platform 1 is lowered, so that the loading unit 2 presses on the photovoltaic module, and the mechanical load performance of the photovoltaic module is detected.
Specifically, as shown in fig. 2 and 3, the load-weighing member may include an electronic scale 3 and a floating table 4, the floating table 4 being disposed on an upper surface of the electronic scale 3, the electronic scale 3 being disposed above the elevating platform 1, and the loading unit 2 being in suspended connection with the floating table 4. The floating platform 4 presses down the electronic scale 3 by the gravity of the loading unit 2 to measure weight data. The electronic scale 3 can be directly placed on the surface of the lifting platform 1 or fixed on the surface of the lifting platform 1.
In the present invention, in consideration of the stability of the electronic scale 3, it is preferable that the bottom of the electronic scale 3 is provided with an electronic scale base 301.
In view of the convenience of connection of the loading unit 2 to the floating stage 4 and the more uniform stress of the photovoltaic module, preferably, the floating stage 4 may include a plurality of slider branches 6 scattered from the center of the floating stage 4 to the periphery; the mechanical load testing device further comprises a plurality of connecting belts, the connecting belts penetrate through the lifting platform 1, and two ends of each connecting belt are connected with the loading unit 2 and the floating block branches 6 respectively.
In the present invention, the number of the slider branches 6 is not particularly limited, and may be increased or decreased according to the actual application, and for example, the number of the slider branches 6 is 4 to 8. The connection mode of the connection belt (not shown in the figure) with the loading unit 2 and the slider branch 6 is not particularly limited, and the connection belt can be fixedly connected by punching or knotting.
In a preferred embodiment, the electronic scales 3 are connected to a computer via data lines 17. Target load data is input into a computer and compared with data displayed by the electronic scale 3, and water injection or drainage operation is automatically controlled.
In the present invention, it is further preferable that the mechanical load testing device further includes a frame 7, and the loading unit 2 and the lifting platform 1 are disposed in the frame 7.
In order to further improve the operational convenience and the stability of the device, it is preferable that the device further comprises a driving assembly, the driving assembly comprises a driving member assembled on the frame 7, a screw rod 11 connected with the driving member, and a guide rod 12 arranged in parallel with the screw rod 11 and assembled in the frame 7, the screw rod 11 passes through the lifting platform 1 and is in threaded connection with the lifting platform 1, and the guide rod 12 passes through the lifting platform 1 and is slidably connected with the lifting platform 1.
In the utility model, preferably, the driving part comprises a motor 8 and a driving shaft 9, the number of the screw rods 11 can be 2, the screw rods 11 are respectively arranged at two sides of the lifting platform 1 and penetrate through the lifting platform 1, the motor 8 is connected with the driving shaft 9, and two ends of the driving shaft 9 are respectively connected with the screw rods 11 through right-angle steering gears 10. The number of the guide rods 12 is multiple (for example, 4), the guide rods 12 are perpendicular to the lifting platform 1 and penetrate through the lifting platform 1, and two ends of the guide rods 12 are respectively connected and fixed with the upper and lower frames of the frame 7. In the preferred embodiment, the motor 8 drives the screw rod 11 to rotate, and the lifting platform 1 is controlled to be stably lifted or lowered under the guiding action of the guide rod 12, so that the loading unit 2 is controlled to be stably lifted or lowered.
The mechanical load testing device provided by the embodiment of the utility model also comprises a motor mounting plate 14 and four lead screw mounting plates 15, wherein the motor 8 is mounted on the upper surface of the motor mounting plate 14, and the lead screw mounting plates 15 are respectively mounted on the upper frame and the lower frame of the frame 7 and used for fixing the lead screw 11 on the frame 7.
Further preferably, the mechanical load testing device provided by the embodiment of the present invention may further include a photovoltaic module supporting platform, and the photovoltaic module supporting platform is disposed right below the loading unit 2, so that after the lifting platform 1 is lowered, the loading unit 2 presses the photovoltaic module on the photovoltaic module supporting platform. The photovoltaic module supporting platform can be composed of two straight rods, the two straight rods are arranged in parallel, and two ends of each straight rod are respectively lapped on lower frames on two sides of the frame 7.
When the mechanical load testing device disclosed by the utility model is used for testing the mechanical load performance of the photovoltaic module, the specific operation is as follows:
(1) mounting the photovoltaic module 16 on a photovoltaic module support platform, and calculating the weight of a fluid (for example, water) to be injected according to the area of the photovoltaic module 16 and the required pressure;
(2) injecting a corresponding fluid into the loading unit 2 through the main pipeline 13 and a plurality of diversely arranged branch pipelines 5, and displaying the weight of the injected fluid through the electronic scales 3;
(3) the motor 8 is started, the motor 8 starts to work, the lifting platform 1 is driven to reduce the height through the screw rod 11, the loading unit 2 is completely contacted with the photovoltaic module 16, and the connecting belt of the loading unit 2 and the floating platform 4 is ensured to be in a loose state;
(4) after the test is finished, the screw rod 11 drives the lifting platform 1 to rise through the motor 8, and part of water is discharged or injected through the main pipeline 13 and the branch pipeline 5, so that the load performance of the photovoltaic module 16 under other pressures is tested continuously.
While the utility model has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the following claims.
Claims (10)
1. A mechanical load testing device, the device comprising:
a loading unit (2) for loading a fluid, the loading unit (2) comprising a plurality of loading sub-units (202) communicating with each other, the loading unit (2) being provided with a plurality of connection ports for injecting or discharging the fluid;
a fluid injection line connected to the connection port; and
and the lifting platform (1) is assembled with the loading unit (2) and drives the loading unit (2) to lift.
2. Device according to claim 1, characterized in that said fluid injection circuit comprises a main circuit (13) and a plurality of branch circuits (5) communicating with said main circuit (13) and respectively connected to a plurality of said connection ports.
3. The device according to claim 2, characterized in that a plurality of said connection ports are uniformly distributed at the bottom of said loading unit (2).
4. A device according to any one of claims 1-3, wherein the loading unit (2) further comprises a housing (201) for housing a plurality of the loading sub-units (202), the multi-sided aperture of each loading sub-unit (202) through which the loading sub-units (202) communicate with the loading sub-units (202).
5. An arrangement according to claim 1, characterized in that the arrangement further comprises a load weighing member for weighing the load of the loading unit (2), which load weighing member is arranged above the loading unit (2), to which loading unit (2) is in suspended connection, which load weighing member displays the pressure built up by the loading unit (2).
6. The apparatus according to claim 5, wherein the load-weighing member comprises an electronic scale (3) and a floating table (4), the floating table (4) is disposed on an upper surface of the electronic scale (3), the electronic scale (3) is disposed above the elevating platform (1), and the loading unit (2) is connected to the floating table (4) in a suspended manner.
7. The arrangement according to claim 6, characterized in that the flying-table (4) comprises a plurality of slider branches (6) scattered around the center of the flying-table (4); the device further comprises a plurality of connecting belts, the connecting belts penetrate through the lifting platform (1), and two ends of each connecting belt are respectively connected with the loading unit (2) and the floating block branches (6).
8. The device according to claim 6, characterized in that the electronic scale (3) is connected to a computer via a data line (17).
9. The device according to claim 1, characterized in that it further comprises a frame (7), the loading unit (2) and the lifting platform (1) being arranged within the frame (7).
10. The device according to claim 9, characterized in that it further comprises a drive assembly comprising a drive member assembled on said frame (7), a screw (11) connected to said drive member, a guide rod (12) arranged parallel to said screw (11) and assembled inside said frame (7), said screw (11) passing through said lifting platform (1) and being in threaded connection with said lifting platform (1), said guide rod (12) passing through said lifting platform (1) and being slidably connected with said lifting platform (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220035035.9U CN216978653U (en) | 2022-01-07 | 2022-01-07 | Mechanical load testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220035035.9U CN216978653U (en) | 2022-01-07 | 2022-01-07 | Mechanical load testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216978653U true CN216978653U (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220035035.9U Active CN216978653U (en) | 2022-01-07 | 2022-01-07 | Mechanical load testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216978653U (en) |
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- 2022-01-07 CN CN202220035035.9U patent/CN216978653U/en active Active
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