CN210774668U - Life testing device of photovoltaic tracking rotary speed reducer - Google Patents
Life testing device of photovoltaic tracking rotary speed reducer Download PDFInfo
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- CN210774668U CN210774668U CN201922020599.6U CN201922020599U CN210774668U CN 210774668 U CN210774668 U CN 210774668U CN 201922020599 U CN201922020599 U CN 201922020599U CN 210774668 U CN210774668 U CN 210774668U
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Abstract
The utility model discloses a service life testing device of a photovoltaic tracking rotary speed reducer, which comprises a rotary speed reducer and a controller, wherein the rotary speed reducer is electrically connected with the controller; the rotary speed reducer is provided with limit switches at the maximum and minimum tracking rotary angle positions, and the limit switches are electrically connected with the controller; the rotary speed reducer is electrically connected with a pincerlike meter and used for monitoring the maximum running current of the rotary speed reducer; the testing device also comprises a main beam sleeved in the rotary speed reducer and used as an output shaft, wherein a plurality of rows of transmission arms are vertically connected to the main beam, and a load unit is connected to any one of the transmission arms; the slewing reducer drives the main beam to drive the transmission arm to synchronously rotate under a load working condition, so that the actual running state of the slewing reducer in the photovoltaic tracking system is simulated. Thereby the utility model discloses simple and practical, measurement are accurate, can verify the life of rotary reducer stage by stage in practical application, reach expected effect.
Description
Technical Field
The utility model belongs to the testing arrangement field, concretely relates to life-span testing arrangement of photovoltaic tracking rotary speed reducer.
Background
The photovoltaic tracking system optimizes the use of sunlight in the photovoltaic power generation process to achieve a mechanical and electric control unit system for improving the photoelectric conversion efficiency, and a rotary speed reducer is often adopted in the prior art to drive a main beam and further push a photovoltaic panel to rotate so that the photovoltaic panel can always face the sun, so that the photovoltaic power generation efficiency is improved. Therefore, the rotary speed reducer is very important for the operation reliability of the photovoltaic tracking system. In a photovoltaic tracking system, at present, no effective design scheme is uniformly designed for testing the service life of a rotary speed reducer used in the photovoltaic tracking system.
In view of this, those skilled in the art need to provide a simple, practical, and accurate-to-measure life testing device for a photovoltaic tracking rotary speed reducer.
Disclosure of Invention
To the not enough among the above-mentioned prior art, the utility model provides a simple and practical, measure accurate life-span testing arrangement of photovoltaic tracking rotary speed reducer. And, use the utility model provides a life that rotary reducer can be verified stage by stage in practical application to the device reaches expected effect.
To realize the above-mentioned purpose, provide a life-span testing arrangement of photovoltaic tracking rotary speed reducer, the utility model discloses a following technical scheme:
a service life testing device of a photovoltaic tracking rotary speed reducer comprises the rotary speed reducer and a controller, wherein the rotary speed reducer is electrically connected with the controller; the rotary speed reducer is provided with limit switches at the maximum and minimum tracking rotary angle positions, and the limit switches are electrically connected with the controller;
the testing device also comprises a main beam sleeved in the rotary speed reducer and used as an output shaft, wherein a plurality of rows of transmission arms are vertically connected to the main beam, and a load unit is connected to any one of the transmission arms;
the slewing reducer drives the main beam to drive the transmission arm to synchronously rotate under a load working condition, so that the actual running state of the slewing reducer in the photovoltaic tracking system is simulated.
Preferably, the load unit comprises a first load unit respectively suspended at one end of the transmission arm and a second load unit connected with the other end of the transmission arm through a fixed pulley;
the fixed pulley and the transmission arm which are connected with each other are positioned in the same vertical plane, and the position of the fixed pulley in the vertical plane is higher than that of the transmission arm.
Furthermore, the center of the transmission arm is fixed on the main beam, and the first load unit and the load unit at the two ends of the transmission arm have the same weight.
Further, the device also comprises a plurality of parallel first upright posts for supporting the main beam; 2 first upright columns close to two ends of the main beam are connected with second upright columns through first cross beams, and the corresponding 2 second upright columns are connected into a whole through second cross beams;
the second cross beam is higher than a plane formed by the main beam and the transmission arm in a surrounding mode.
Further, the fixed pulley is fixed on the second cross beam.
Furthermore, the main beam penetrates through a bearing, and the bearing is arranged in a bearing race;
and the bearing race is fixedly connected with the top of the first upright post through a bearing seat connecting plate.
Preferably, the main beam and the transmission arm are vertically connected into a whole through an L-shaped connecting piece.
Preferably, the rotary speed reducer is mounted on the third upright through the upright top seat.
Preferably, the controller adopts a single chip microcomputer with the model of ARM STM32E103, and the single chip microcomputer is electrically connected with the rotary speed reducer and is used for controlling the rotation of the rotary speed reducer according to the rotation angle of the rotary speed reducer.
Preferably, the type of the limit switch is LSM-11/RLA.
Preferably, a clamp meter is clamped on a circuit electrically connected with the controller and used for detecting the current of the rotary speed reducer.
The beneficial effects of the utility model reside in that:
1. the utility model discloses in through controller output order to rotary speed reducer, drive the girder and rotate, corresponding drive transmission arm synchronous rotation under the load operating mode, will trigger limit switch when rotary speed reducer moves to the biggest or minimum tracking angle, the feedback pulse signal of controller receipt spacing protection, the direct current motor of control rotary speed reducer is just reversing to the actual operating conditions of the rotary speed reducer of photovoltaic tracking system in the simulation actual motion; in the process of simulating the actual operation working condition, the maximum operation current of the rotary speed reducer can be monitored every day by using the clamp meter, so that the maximum operation current can be used for judging whether the maximum operation current is qualified or not according to the current increase degree under a certain test working condition.
2. The utility model discloses the cooperation of transmission arm and girder, rotary speed reducer sets up simple structure among the device, and rotary speed reducer can be convenient take out from the girder, makes the test procedure easily realize, and the cost is lower.
3. Utilize the utility model discloses a testing arrangement can simulate the characteristic of rotary speed reducer, verifies its life stage by stage to the rotatory life is trailed to the circumference of abundant accurate verification rotary speed reducer reaches expected effect, remedies the blank of rotary speed reducer life test technique among the photovoltaic tracking system.
Drawings
Fig. 1 is a schematic structural diagram of the testing device of the present invention.
Fig. 2 is a side view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is an enlarged view of the connection structure of the main beam and the first upright post of the present invention.
The notations in the figures have the following meanings:
1-a rotary speed reducer;
2-main beam, 20-bearing, 21-bearing race, 22-bearing seat connecting plate;
3-a transmission arm;
4-load unit, 40-fixed pulley, 41-first load unit, 42-second load unit;
5-a first upright, 50-a first beam;
6-a second upright post, 60-a second cross beam;
7-third column, 70-column top seat.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product.
Example 1
As shown in fig. 1, the present embodiment is a service life testing device of a photovoltaic tracking rotary speed reducer, which includes a rotary speed reducer 1 and a controller, and the rotary speed reducer 1 is electrically connected to the controller; the rotary speed reducer 1 is provided with limit switches at the maximum and minimum tracking rotary angle positions, and the limit switches are electrically connected with the controller;
the testing device also comprises a main beam 2 which is sleeved in the rotary speed reducer 1 and serves as an output shaft, wherein a plurality of rows of transmission arms 3 are vertically connected to the main beam 2, and a load unit 4 is connected to any one of the transmission arms 3;
the rotary speed reducer 1 drives the main beam 2 to drive the transmission arm 3 to synchronously rotate under a load working condition, so that the simulation of the actual running state of the rotary speed reducer in the photovoltaic tracking system is realized.
In this embodiment, through controller output instruction to rotary speed reducer 1, drive girder 2 rotates, corresponding drive arm 3 rotates in step under the load condition, will trigger limit switch when rotary speed reducer 1 moves to the biggest or minimum tracking angle, thereby control rotary speed reducer 1 stop work, the feedback pulse signal of rotary speed reducer 1 is received to the controller, control rotary speed reducer 1 is just reversing, thereby simulate the actual behavior of rotary speed reducer 1 of photovoltaic tracking system in the actual operation. And, wherein the cooperation of drive arm 3 and girder 2, rotary reducer 1 sets up simple structure, and rotary reducer 1 can be convenient take out from girder 2, makes the testing process easily realize, and the cost is lower.
On the basis, a clamp meter is clamped on a circuit electrically connected with the controller and used for detecting the current of the rotary speed reducer. In practical application, a portable clamp meter is adopted, and the clamp meter is clamped on an input or output line within half to 1 hour of the operation of the rotary speed reducer; during non-operation, the clamp meter is removed. Of course, other structures or devices capable of realizing current measurement in the prior art can be adopted to detect the current of the rotary speed reducer.
Therefore, the maximum running current of the rotary speed reducer 1 can be monitored every day by using the clamp meter, and whether the maximum running current is qualified or not can be judged according to the current increase degree under a certain test working condition.
Example 2
As shown in fig. 1, the present embodiment is a service life testing device of a photovoltaic tracking rotary speed reducer, which includes a rotary speed reducer 1 and a controller, and the rotary speed reducer 1 is electrically connected to the controller; the rotary speed reducer 1 is provided with limit switches at the maximum and minimum tracking rotary angle positions, and the limit switches are electrically connected with the controller;
the rotary speed reducer 1 is electrically connected with a clamp meter and used for monitoring the maximum running current of the rotary speed reducer;
the testing device also comprises a main beam 2 which is sleeved in the rotary speed reducer 1 and serves as an output shaft, wherein a plurality of rows of transmission arms 3 are vertically connected to the main beam 2, and a load unit 4 is connected to any one of the transmission arms 3;
the load unit 4 comprises a first load unit 41 respectively hung at one end of the transmission arm 3, and a second load unit 42 connected with the other end of the transmission arm 3 through a fixed pulley 40;
the fixed pulley 40 and the transmission arm 3 which are connected with each other are positioned in the same vertical plane, and the position of the fixed pulley 40 in the vertical plane is higher than that of the transmission arm 3;
the rotary speed reducer 1 drives the main beam 2 to drive the transmission arm 3 to synchronously rotate under a load working condition, so that the simulation of the actual running state of the rotary speed reducer in the photovoltaic tracking system is realized.
In the embodiment, an optimal setting form of the load unit 4 is provided, the rotary speed reducer 1 drives the main beam 2 to drive the transmission arm 3 to be always kept in a vertical rotating surface perpendicular to the main beam 2 in a stressed state by one end of the transmission arm 3 being under the gravity of the first load unit 41 and the other end of the transmission arm being under the tension opposite to the gravity direction, so that the simulation of the actual running state of the rotary speed reducer in the photovoltaic tracking system is realized. Wherein the end of the driving arm 3 near the second load unit 42 is connected to the second load unit 42 by a rope passing over the top of the fixed pulley 40.
Preferably, the center of the transmission arm 3 is fixed on the main beam 2, and the first load unit 41 and the second load unit 42 at the two ends of the transmission arm have the same weight.
Further preferred load cell 4's the form that sets up in this embodiment, gyration speed reducer 1 drive girder 2 drives driving arm 3 and receives the gravity of first load cell 41 in one end, the other end receives synchronous rotation under the tensile load operating mode the same with the gravity size, the atress size of rotation in-process driving arm 3 both ends is equal opposite in direction, stationarity when further ensuring gyration speed reducer rotates along circumferential tracking, the equilibrium of atress, thereby the stress state in the actual motion is pressed close to more, make the test result more accurate. In practical application, the load unit can be selected from a counterweight barrel.
As a preferred further embodiment, the device further comprises a plurality of parallel first uprights 5 for supporting the main beams 2; 2 first upright columns 5 close to two ends of the main beam are connected with second upright columns 6 through first cross beams 50, and the corresponding 2 second upright columns 6 are connected into a whole through second cross beams 60; the second cross beam 60 is higher than the plane enclosed by the main beam 2 and the driving arm 3. Therefore, the other end of the transmission arm can be provided with pulling force opposite to the gravity borne by the first load unit, and the load borne by the transmission arm can simulate the load working condition of the borne photovoltaic module.
Preferably, the fixed pulley is fixed on the second cross beam.
Therefore, the installation form of the fixed pulleys is provided, and certain load is effectively applied to the main beam so as to simulate the actual working condition of the rotary speed reducer in the photovoltaic tracking system.
Preferably, the main beam 2 is arranged in a bearing 20 in a penetrating way, and the bearing 20 is arranged in a bearing race 21; the bearing race 21 is fixedly connected with the top of the first upright post 5 through a bearing seat connecting plate 22.
It should be noted that the controller (not shown) of the present invention can be conveniently installed on the first upright 5 or the first cross member 50.
Example 3
In this embodiment, on the basis of embodiment 1 or 2, the main beam 2 and the driving arm 3 are vertically connected into a whole through an L-shaped connecting member. Therefore, in the embodiment, when the rotary speed reducer 1 drives the main beam to rotate in the vertical plane, the corresponding main beam is driven to rotate synchronously, and the operation mode of the photovoltaic tracking system is simulated. And this embodiment adopts the fixed mode of L type connecting piece, convenient to detach maintains.
As another preferred embodiment, the rotary reduction gear 1 is mounted on the third column 7 through a column top seat 70. In the embodiment, the third upright post 7 is arranged to provide support for the rotary speed reducer, so that the operation condition of the rotary speed reducer is stabilized; and, the rotary speed reducer 1 can be convenient dismantle from girder and third stand and take out, makes the testing process easily realize, is convenient for change the product and carries out the life-span test.
Example 4
In this embodiment, on the basis of embodiment 1, 2 or 3, the controller is a single chip microcomputer of an arm m tm32E103 type, and the single chip microcomputer is electrically connected to the rotary speed reducer 1 and is configured to control forward and reverse rotation of the rotary speed reducer 1 according to a rotation angle of the rotary speed reducer 1.
In addition, the model of the limit switch is LSM-11/RLA.
In addition, the length of the driving arm 3 can be set according to the universal width size of the photovoltaic module, so that the actual operation condition can be better simulated.
Application example
The test device provided by the embodiment 1-4 is used for accelerating simulation of the actual operation mode of the photovoltaic tracking system, and the following load loading mode is adopted:
the load is loaded by a standard load barrel (200 kg/barrel), and the loading arm (the transmission arm is 1 m) loads output torque for the rotary speed reducer according to the stages 1 and 2, so that the service life is detected.
Stage 1: loading 120% rated output torque through a load unit, and operating for 100 cycles (one cycle is a process that the rotary speed reducer operates from the minimum tracking angle to the maximum tracking angle and then returns to the minimum tracking angle, specifically, the operating angle of the rotary speed reducer is +/-60 degrees, and the operating angle of the rotary speed reducer is 240 degrees in one cycle);
and (2) stage: loading rated output torque of a 100% rotary speed reducer, and operating 10000 cycles;
and the continuous operation is kept in the loading process of the stage, wherein the half cycle operation time is set as 8min/5s (operation time/stop time), the rotary speed reducer operates to the maximum tracking angle, the limit switch is triggered, and the controller receives a feedback pulse signal of limit protection and controls the forward and reverse rotation of the direct current motor of the rotary speed reducer.
The judgment basis is as follows: in the process of testing the service life of the rotary speed reducer, the maximum running current of the rotary speed reducer is monitored every day through a clamp-on meter, and the maximum running current is recorded and compared, so that the current is increased by not more than 50% and the rotary speed reducer is judged to be qualified.
In addition, it should be noted that, in addition to the current test in the above-mentioned simulated photovoltaic tracking system, in an actual test, a waterproof and dustproof test in the prior art needs to be performed so that the protection level of the slewing reducer meets IP 65.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A service life testing device of a photovoltaic tracking rotary speed reducer comprises the rotary speed reducer and a controller, wherein the rotary speed reducer is electrically connected with the controller; the rotary speed reducer is provided with limit switches at the maximum and minimum tracking rotary angle positions, and the limit switches are electrically connected with the controller; the method is characterized in that:
the testing device also comprises a main beam sleeved in the rotary speed reducer and used as an output shaft, wherein a plurality of rows of transmission arms are vertically connected to the main beam, and a load unit is connected to any one of the transmission arms;
the slewing reducer drives the main beam to drive the transmission arm to synchronously rotate under a load working condition, so that the actual running state of the slewing reducer in the photovoltaic tracking system is simulated.
2. The test device of claim 1, wherein:
the load unit comprises a first load unit and a second load unit, wherein the first load unit is respectively suspended at one end of the transmission arm, and the second load unit is connected with the other end of the transmission arm through a fixed pulley;
the fixed pulley and the transmission arm which are connected with each other are positioned in the same vertical plane, and the position of the fixed pulley in the vertical plane is higher than that of the transmission arm.
3. The test device of claim 2, wherein:
the center of the transmission arm is fixed on the main beam, and the first load unit and the second load unit at the two ends of the transmission arm are the same in weight.
4. The test device of claim 2, wherein:
the device also comprises a plurality of parallel first upright posts for supporting the main beams; 2 first upright columns close to two ends of the main beam are connected with second upright columns through first cross beams, and the corresponding 2 second upright columns are connected into a whole through second cross beams;
the second cross beam is higher than a plane formed by the main beam and the transmission arm in a surrounding mode.
5. The test device of claim 4, wherein:
the fixed pulley is fixed on the second cross beam.
6. The test device of claim 4, wherein:
the main beam penetrates through a bearing, and the bearing is arranged in a bearing race;
and the bearing race is fixedly connected with the top of the first upright post through a bearing seat connecting plate.
7. The test device of claim 1, wherein:
the main beam and the transmission arm are vertically connected into a whole through an L-shaped connecting piece.
8. The test device of claim 4, wherein:
the rotary speed reducer is installed on a third upright post through an upright post top seat, the third upright post is arranged between two adjacent first upright posts, and the first upright posts and the third upright posts are arranged in a row.
9. The test device of claim 1, wherein:
the controller adopts a single chip microcomputer with the model of ARM STM32E103, and the single chip microcomputer is electrically connected with the rotary speed reducer and is used for controlling the rotation of the rotary speed reducer according to the rotation angle of the rotary speed reducer; and/or the presence of a gas in the gas,
the type of the limit switch is LSM-11/RLA.
10. The test device of claim 1, wherein:
and a pincerlike meter is clamped on a circuit electrically connected with the rotary speed reducer and the controller and used for detecting the current of the rotary speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922020599.6U CN210774668U (en) | 2019-11-21 | 2019-11-21 | Life testing device of photovoltaic tracking rotary speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922020599.6U CN210774668U (en) | 2019-11-21 | 2019-11-21 | Life testing device of photovoltaic tracking rotary speed reducer |
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| Publication Number | Publication Date |
|---|---|
| CN210774668U true CN210774668U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922020599.6U Active CN210774668U (en) | 2019-11-21 | 2019-11-21 | Life testing device of photovoltaic tracking rotary speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210774668U (en) |
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2019
- 2019-11-21 CN CN201922020599.6U patent/CN210774668U/en active Active
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