Street lamp static wind power test auxiliary system

Abstract

The utility model discloses a street lamp static wind power test auxiliary system which comprises a street lamp fixing device, a street lamp stress control device and a measurement and control host. The street lamp fixing device is used for fixing a street lamp to be tested at a test position; the measurement and control host is used for generating a first control signal and sending the first control signal to the street lamp stress control device, and the street lamp stress control device is used for pulling the street lamp to be tested according to the first control signal, measuring the tensile force borne by the street lamp to be tested and sending the tensile force to the measurement and control host; the measurement and control host is further used for generating a second control signal and sending the second control signal to the street lamp stress control device when detecting that the tensile force reaches a preset value, and the street lamp stress control device is used for stopping pulling the street lamp to be tested according to the second control signal. According to the utility model, the tensile force borne by the street lamp to be tested can be intelligently adjusted, the static wind power test on the street lamp to be tested can be efficiently and reliably carried out, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of lamp testing, in particular to a static wind force test auxiliary system for street lamps. Background Art

[0002] Static wind test of street lamps refers to simulating the condition of street lamps installed at high places outdoors under the influence of wind in a laboratory. By applying a certain static pressure, torque or weight load, the street lamps are tested and evaluated for their load-bearing capacity and stability under specified wind force and installation height, that is, evaluating whether the structure and fixing method of the street lamps can withstand the load, and whether there are any abnormal conditions such as loosening, cracking, deformation or falling off. How to design a more efficient and reliable auxiliary system to cooperate in the implementation of static wind test of street lamps is the technical problem to be solved by this utility model. Utility Model Content

[0003] The utility model provides a street lamp static wind test auxiliary system to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The utility model provides a street lamp static wind force test auxiliary system, the system comprises a street lamp fixing device, a street lamp force control device and a measurement and control host;

[0005] The street lamp fixing device is used to fix the street lamp to be tested at a test position;

[0006] The measurement and control host is used to generate a first control signal and send it to the street lamp force control device, and the street lamp force control device is used to pull the street lamp to be tested according to the first control signal, and at the same time measure the pulling force on the street lamp to be tested and send it to the measurement and control host;

[0007] The measurement and control host is also used to generate a second control signal and send it to the street lamp force control device when it is detected that the pulling force reaches a preset value. The street lamp force control device is used to stop pulling the street lamp to be tested according to the second control signal.

[0008] Furthermore, the street lamp force control device comprises a support frame, a traction rope, a net sleeve, and a pulley, a movable crossbeam, a guide assembly and a driving assembly arranged on the support frame;

[0009] The movable crossbeam is arranged on the guide assembly and is located below the pulley, the mesh sleeve wraps the street lamp to be tested, one end of the traction rope is connected to the mesh sleeve, and the other end of the traction rope passes through the pulley and is connected to the movable crossbeam;

[0010] The driving component is used to drive the guide component to move according to the first control signal, and the guide component is used to drive the movable beam away from the pulley; the driving component is also used to control the guide component to stop moving according to the second control signal, and the guide component is used to control the movable beam to stop moving.

[0011] Further, the guide assembly includes a first rotating shaft, a second rotating shaft and a screw rod;

[0012] One end of the movable crossbeam is connected to the first rotating shaft, and the other end of the movable crossbeam is connected to the second rotating shaft; one end of the screw rod is connected to the first rotating shaft, and the other end of the screw rod is connected to the second rotating shaft.

[0013] Further, the drive assembly includes a motor and a motor controller;

[0014] The motor controller is used to generate a corresponding first drive signal according to the first control signal and send it to the motor, and the motor is used to drive the screw to rotate according to the first drive signal, so that the first rotating shaft and the second rotating shaft rotate synchronously;

[0015] The motor controller is further used to generate a corresponding second drive signal according to the second control signal and send it to the motor. The motor is further used to control the screw to stop rotating according to the second drive signal so that the first rotating shaft and the second rotating shaft stop rotating synchronously.

[0016] Furthermore, the street lamp force control device also includes a force sensor, which is arranged on the movable crossbeam, and is used to measure the tensile force applied to the street lamp to be tested and send it to the measurement and control host.

[0017] Furthermore, the street lamp force control device also includes a fixed beam, the fixed beam is arranged on the support frame, and the pulley is arranged on the fixed beam.

[0018] Furthermore, the traction rope is a steel wire rope.

[0019] Furthermore, the screw rod is a ball screw rod.

[0020] Furthermore, the motor is a servo motor.

[0021] Furthermore, the street lamp fixing device comprises a fixture bracket and a street lamp fixture, the street lamp fixture is arranged on the fixture bracket, and the street lamp to be tested is fixedly connected to the street lamp fixture.

[0022] The utility model has at least the following beneficial effects: by arranging a driving assembly and a guiding assembly in the street lamp force control device, it is convenient to intelligently adjust the pulling force borne by the street lamp to be tested under the monitoring of the measurement and control host, thereby efficiently and reliably cooperating in the execution of the static wind force test of the street lamp to be tested, without consuming manpower and material resources, simple operation, and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0024] Figure 1 It is a schematic diagram of the composition of a street lamp static wind test auxiliary system in the prior art;

[0025] Figure 2 It is a schematic diagram of the composition of a street lamp static wind test auxiliary system in an embodiment of the utility model;

[0026] Figure 3 It is a schematic diagram of the structural composition of the street lamp force control device in the embodiment of the utility model;

[0027] Figure 4 It is a schematic diagram of the structural composition of the street lamp fixing device in the embodiment of the utility model. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] It should be noted that, although the functional modules are divided in the system schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the system or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0030] Please refer to Figure 1 , Figure 1The present invention is a schematic diagram of the composition of a street lamp static wind test auxiliary system in the prior art. The system mainly includes a street lamp fixing device, a traction rope, a mesh, a pulley and a weight. The experimental street lamp is fixed at a previously given test position by the street lamp fixing device, and the mesh is used to completely wrap the experimental street lamp. One end of the traction rope is tied to the mesh, and the other end of the traction rope is passed through the pulley and then tied to the weight.

[0031] When using Figure 1 When the auxiliary system shown is used to cooperate in performing the static wind test on the experimental street lamp, if different loads are to be simulated to be applied to the experimental street lamp, it is necessary to manually replace the weights with different weights continuously. In addition, the number of weights usually equipped for the experiment is limited, which means that manpower and material resources are consumed in the entire experimental process, and a more comprehensive experimental effect cannot be obtained.

[0032] Please refer to Figure 2 , Figure 2 It is a schematic diagram of the structural composition of a street lamp static wind test auxiliary system provided by an embodiment of the utility model. The system mainly includes a measurement and control host 100, a street lamp force control device 200 and a street lamp fixing device 300. The measurement and control host 100 is communicatively connected with the street lamp force control device 200.

[0033] In a specific implementation process, the street lamp 400 to be tested is fixed at a previously given test position by the street lamp fixing device 300; a first control signal is generated by the measurement and control host 100 and transmitted to the street lamp force control device 200; the street lamp force control device 200 then pulls the street lamp 400 to be tested after receiving the first control signal, and collects the pulling force borne by the street lamp 400 to be tested during the pulling process and transmits it to the measurement and control host 100; the measurement and control host 100 generates a second control signal and transmits it to the street lamp force control device 200 when recognizing that the pulling force reaches a preset value; and the street lamp force control device 200 pauses pulling the street lamp 400 to be tested after receiving the second control signal.

[0034] In the embodiment of the present utility model, see Figures 2 to 3 As shown, the street lamp force control device 200 mainly includes a support frame 210, a traction rope 220, a mesh 230, and a pulley 240, a movable beam 250, a driving assembly and a guiding assembly arranged on the support frame 210.

[0035] Among them, the movable crossbeam 250 is located below the pulley 240 and is arranged on the guide assembly, one end of the traction rope 220 is connected to the mesh 230, and the other end of the traction rope 220 is connected to the movable crossbeam 250 via the pulley 240. The traction rope 220 preferably adopts a steel wire rope with strong bearing capacity and durability. The mesh 230 completely wraps the street lamp 400 to be tested; the measurement and control host 100 is communicatively connected to the drive assembly, and the drive assembly is connected to the guide assembly.

[0036] In the specific implementation process, after receiving the first control signal sent by the measurement and control host 100, the driving component drives the guide component to move, and then drives the movable crossbeam 250 to move gradually away from the pulley 240 through the guiding component, thereby generating an increasing pulling force on the street lamp 400 to be tested; after receiving the second control signal sent by the measurement and control host 100, the driving component controls the guide component to stop moving, and then controls the movable crossbeam 250 to stop moving and maintain the current position through the guiding component, thereby generating a continuous and stable pulling force on the street lamp 400 to be tested.

[0037] In some embodiments, a ring is provided and detachably provided on the movable crossbeam 250, and the other end of the traction rope 220 is connected to the ring. The contact surface between the ring and the movable crossbeam 250 is larger, which can reduce the damage to the traction rope 220 when it is directly bound to the movable crossbeam 250, and at the same time ensure the stability of the traction rope 220 when pulling the street lamp 400 to be tested.

[0038] In some embodiments, the street lamp force control device 200 also includes a fixed beam 260, and the fixed beam 260 is arranged on the support frame 210, and the pulley 240 is then arranged on the fixed beam 260, so that the direction of the traction rope 220 can be controlled.

[0039] More specifically, the driving component mainly includes a motor controller 270 and a motor 280, the measurement and control host 100 is communicatively connected with the motor controller 270, and the motor controller 270 is connected to the motor 280; the guide component mainly includes a screw rod 290, a first rotating shaft 2100 and a second rotating shaft 2110, one end of the movable crossbeam 250 is connected to the first rotating shaft 2100, and the other end of the movable crossbeam 250 is connected to the second rotating shaft 2110, one end of the screw rod 290 is connected to the first rotating shaft 2100, and the other end of the screw rod 290 is connected to the second rotating shaft 2110.

[0040] In a more specific implementation process, after receiving the first control signal sent by the measurement and control host 100, the motor controller 270 generates a corresponding first drive signal and transmits it to the motor 280, and then the motor 280 drives the screw rod 290 to rotate after receiving the first drive signal, so that the screw rod 290 synchronously drives the first rotating shaft 2100 and the second rotating shaft 2110 to rotate, thereby causing the movable crossbeam 250 to move gradually away from the pulley 240; after receiving the second control signal sent by the measurement and control host 100, the motor controller 270 generates a corresponding second drive signal and transmits it to the motor 280, and then the motor 280 controls the screw rod 290 to stop rotating after receiving the second drive signal, so that the first rotating shaft 2100 and the second rotating shaft 2110 stop rotating synchronously, thereby causing the movable crossbeam 250 to stop moving and remain at the current position.

[0041] In some embodiments, the support frame 210 adopts a U-shaped support frame, the fixed beam 260 is arranged at the top opening position of the U-shaped support frame, the first rotating axis 2100 is arranged on the inner surface of one side of the U-shaped support frame, the second rotating axis 2110 is arranged on the inner surface of the other side of the U-shaped support frame, the screw rod 290 is arranged on the bottom inner surface of the U-shaped support frame, the motor controller 270 and the motor 280 are arranged at a position below the screw rod 290, and the motor 280 is connected to the screw rod 290; through the above-mentioned layout method, the street lamp force control device 200 is more stable and reliable during the experiment.

[0042] In some embodiments, the screw rod 290 adopts a ball screw, which has the characteristics of smooth movement, high transmission efficiency, high positioning accuracy, good synchronization, etc. The motor 280 adopts a servo motor, which has the characteristics of high movement accuracy, high control accuracy, etc. The shaft of the servo motor can be directly connected to the shaft of the ball screw to achieve mechanical transmission, or the shaft of the servo motor can be connected to the shaft of the servo motor through a coupling to achieve mechanical transmission. The ball screw is driven by the servo motor to rotate finely, and finally the tension borne by the street lamp 400 to be tested can be more accurately controlled.

[0043] In an embodiment of the utility model, the street lamp force control device 200 also includes a force sensor 2120 arranged on the movable crossbeam 250, and the force sensor 2120 is communicatively connected with the measurement and control host 100. The force sensor 2120 collects the tensile force borne by the street lamp 400 to be tested in real time and transmits it to the measurement and control host 100.

[0044] In the embodiment of the present utility model, see Figure 4 As shown, the street lamp fixture 300 includes a street lamp fixture 310 and a fixture bracket 320 , the street lamp fixture 310 is fixedly disposed on the fixture bracket 320 , and the street lamp 400 to be tested is fixed on the street lamp fixture 310 by means of locking screws.

[0045] Here, the operation control process of the entire auxiliary system is described in detail as follows:

[0046] The measurement and control host 100 is actually controlled by an external computer device. The computer device enables the street lamp test software independently developed by technical personnel installed inside to generate a start test signal for the street lamp 400 to be tested. The start test signal carries the given tensile force value and test duration that the street lamp 400 to be tested needs to withstand during the experiment, and then the start test signal is transmitted to the measurement and control host 100.

[0047] After receiving the start test signal, the measurement and control host 100 generates a corresponding first control signal and transmits it to the motor controller 270; after receiving the first control signal, the motor controller 270 generates a corresponding first drive signal and transmits it to the motor 280; after receiving the first drive signal, the motor 280 drives the screw rod 290 to rotate, so that the screw rod 290 synchronously drives the first rotating shaft 2100 and the second rotating shaft 2110 to rotate, thereby causing the movable crossbeam 250 to gradually move away from the pulley 240; and during this gradual moving away process, the first pulling force value borne by the street lamp 400 to be tested is collected in real time by the force sensor 2120 and transmitted to the measurement and control host 100.

[0048] When the measurement and control host 100 detects that the currently collected first tension value is equal to the given tension value, a second control signal is generated and transmitted to the motor controller 270, and timing is started at the same time; after receiving the second control signal, the motor controller 270 generates a corresponding second drive signal and transmits it to the motor 280; after receiving the second drive signal, the motor 280 controls the screw rod 290 to stop rotating, so that the first rotating shaft 2100 and the second rotating shaft 2110 stop rotating synchronously, and then the movable crossbeam 250 stops at the current position to ensure that the street lamp 400 to be tested continues to withstand the given tension value.

[0049] When the measurement and control host 100 detects that the timing duration reaches the test duration, a third control signal is generated and transmitted to the motor controller 270; after receiving the third control signal, the motor controller 270 generates a corresponding third drive signal and transmits it to the motor 280; after receiving the third drive signal, the motor 280 drives the screw rod 290 to rotate, so that the screw rod 290 synchronously drives the first rotating shaft 2100 and the second rotating shaft 2110 to rotate, thereby causing the movable crossbeam 250 to gradually approach the pulley 240; and in this gradual approach process, the second tension value borne by the street lamp 400 to be tested is collected in real time by the force sensor 2120 and transmitted to the measurement and control host 100.

[0050] When the measurement and control host 100 detects that the second tension value currently collected is equal to zero, a fourth control signal is generated and transmitted to the motor controller 270; after receiving the fourth control signal, the motor controller 270 generates a corresponding fourth drive signal and transmits it to the motor 280; after receiving the fourth drive signal, the motor 280 controls the screw rod 290 to stop rotating, so that the first rotating shaft 2100 and the second rotating shaft 2110 stop rotating, and then the movable beam 250 stops at the current position to ensure that the tension borne by the street lamp 400 to be tested remains zero, indicating that the current experiment on the street lamp 400 to be tested can be ended. At this time, the measurement and control host 100 generates an end test signal and transmits it to the computer device to remind the tester to remove the street lamp 400 to be tested from the street lamp fixture 300, so as to facilitate the subsequent structural deformation test analysis.

[0051] In some embodiments, see Figure 3 As shown, a power switch 2130, a limit switch 2140 and an emergency stop switch 2150 are arranged on the support frame 210; the power switch 2130 is used to control the external power supply device to supply power to the drive component and the measurement and control host 100 after being pressed by the test personnel; the limit switch 2140 is configured according to the equipment safety self-inspection requirements, and is used to control the measurement and control host 100 to generate a stop motion signal and transmit it to the drive component after being touched by the movable crossbeam 250, so that the drive component further controls the movable crossbeam 250 to stop moving; the emergency stop switch 2150 is configured according to the safety requirements of the manual detection equipment, and is used to control the measurement and control host 100 to generate a stop motion signal and transmit it to the drive component after being pressed by the test personnel, so that the drive component further controls the movable crossbeam 250 to stop moving.

[0052] In the embodiment of the utility model, by setting a driving component and a guide component in the street lamp force control device, it is convenient to intelligently adjust the tension borne by the street lamp to be tested under the monitoring of the measurement and control host, thereby efficiently and reliably cooperating in the execution of the static wind test of the street lamp to be tested, without consuming manpower and material resources, simple operation, and good practicality.

[0053] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the above implementation mode. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the present invention. These equivalent deformations or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A street lamp static wind test auxiliary system, characterized in that: The system includes a street lamp fixing device, a street lamp force control device and a measurement and control host; The street lamp fixing device is used to fix the street lamp to be tested at a test position; The measurement and control host is used to generate a first control signal and send it to the street lamp force control device, and the street lamp force control device is used to pull the street lamp to be tested according to the first control signal, and at the same time measure the pulling force on the street lamp to be tested and send it to the measurement and control host; The measurement and control host is also used to generate a second control signal and send it to the street lamp force control device when it is detected that the pulling force reaches a preset value. The street lamp force control device is used to stop pulling the street lamp to be tested according to the second control signal.

2. The street lamp static wind test auxiliary system according to claim 1, characterized in that: The street lamp force control device comprises a support frame, a traction rope, a net sleeve, and a pulley, a movable crossbeam, a guide assembly and a driving assembly arranged on the support frame; The movable crossbeam is arranged on the guide assembly and is located below the pulley, the mesh sleeve wraps the street lamp to be tested, one end of the traction rope is connected to the mesh sleeve, and the other end of the traction rope passes through the pulley and is connected to the movable crossbeam; The driving component is used to drive the guide component to move according to the first control signal, and the guide component is used to drive the movable beam away from the pulley; the driving component is also used to control the guide component to stop moving according to the second control signal, and the guide component is used to control the movable beam to stop moving.

3. The street lamp static wind test auxiliary system according to claim 2, characterized in that: The guide assembly includes a first rotating shaft, a second rotating shaft and a screw rod; One end of the movable crossbeam is connected to the first rotating shaft, and the other end of the movable crossbeam is connected to the second rotating shaft; one end of the screw rod is connected to the first rotating shaft, and the other end of the screw rod is connected to the second rotating shaft.

4. The street lamp static wind test auxiliary system according to claim 3, characterized in that: The drive assembly includes a motor and a motor controller; The motor controller is used to generate a corresponding first drive signal according to the first control signal and send it to the motor, and the motor is used to drive the screw to rotate according to the first drive signal, so that the first rotating shaft and the second rotating shaft rotate synchronously; The motor controller is further used to generate a corresponding second drive signal according to the second control signal and send it to the motor. The motor is further used to control the screw to stop rotating according to the second drive signal so that the first rotating shaft and the second rotating shaft stop rotating synchronously.

5. The street lamp static wind test auxiliary system according to claim 2, characterized in that: The street lamp force control device also includes a force sensor, which is arranged on the movable crossbeam and is used to measure the tensile force applied to the street lamp to be tested and send the measurement and control host.

6. The street lamp static wind test auxiliary system according to claim 2, characterized in that: The street lamp force control device also includes a fixed beam, the fixed beam is arranged on the support frame, and the pulley is arranged on the fixed beam.

7. The street lamp static wind test auxiliary system according to claim 2, characterized in that: The traction rope is a steel wire rope.

8. The street lamp static wind test auxiliary system according to claim 3, characterized in that: The screw rod adopts a ball screw rod.

9. The street lamp static wind test auxiliary system according to claim 4, characterized in that: The motor is a servo motor.

10. The street lamp static wind test auxiliary system according to claim 1, characterized in that: The street lamp fixing device comprises a fixture bracket and a street lamp fixture. The street lamp fixture is arranged on the fixture bracket, and the street lamp to be tested is fixedly connected to the street lamp fixture.

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