Manual lifting bracket controller and display wind resistance

Time：2020-08-26 View：

Control Panel and display
The control panel of manual lifting rod is to realize the operation control of a single position machine, which is composed of power supply circuit, single chip microcomputer, coding logic circuit, input circuit, output circuit, communication circuit, etc.
Power supply circuit is to convert AC220V power supply into DC5V and DC12V for other circuits.
Single Chip Microcomputer (Microcontroller, also known as Microcontroller) is a microcomputer that integrates various components on a silicon wafer, including CPU of central processing unit, RAM of data storage, ROM of program storage, timer/counter and a variety of I/O interface circuits.
The coding logic circuit is to edit the address of the machine in binary form through the dial switch. When the master control computer sends out the control command, the machine should judge whether it is the same as its own address after receiving the command, the same command is executed.
The input circuit is to convert the signal detected by the sensor when the mechanical equipment moves into the signal that can be recognized by the single chip microcomputer.
The output circuit is to convert the control signal output by the singlechip into the signal that can control the operation of the motor.
Communication circuit is to send the control command sent by the master control computer to receive and convert it into the signal that can be recognized by the single chip microcomputer and convert the signal of the single chip microcomputer into the signal that can be recognized by the master control computer and send it to the master control computer.
The display is used to display the running time of each hitting position, the number of balls played and the control of the height adjustment of the T-stage.

Controller and electrical box
The automatic ball supply system of the lifting rod can realize full-automatic computer control and implement remote control, and the management terminal can be set in the cashier, thus greatly improving the management benefit. The timing and counting functions can be set by customers according to the specific conditions of the stadium; The installation is convenient, the maintenance cost is low, the personnel cost is reduced, and the interest of basketball lovers is improved to attract more customers.
PLC(Programmable Logic Controller) is an electronic device, which was called Sequence Controller "Sequence Controller" in the early stage, and NEMA(National Electrical Manufacture Association) was officially named "PLC" by National Electrical Association in 1978 ", it is defined as an electronic device, which mainly reads the state of external input devices such as keys, sensors, switches and pulses, etc, according to the state or value of these input signals and the pre-written program stored internally, the microprocessor performs logic, sequence, timing, counting and Formula operations, generate corresponding output signals to output devices such as relay switches, solenoid valves and motor drivers to control the operation of machinery or procedures to achieve the purpose of mechanical control automation or processing procedures. And the peripheral device (Personal Computer/program writer) can easily edit/modify the program and the status of the monitoring device to maintain the on-site program and adjust the test machine.

Wind resistance energy of lifting rod-wind resistance energy and calculation method of mast
1) understanding of wind resistance of lifting mast
Wind resistance of mast is one of the important technical indexes of mast products. Every customer wants to know how much wind the mast they use can withstand after the load is installed, but at present, almost no one can answer this question accurately. This is because the wind resistance of the lifting mast can be determined by the following three factors:
Material and structure of A mast
Use height of B Mast
C weight, volume and shape of load
Under the condition that the above three conditions are clear, to obtain the index of specific wind resistance Energy, the following three methods can be used:
(1) theoretical calculation means using finite element analysis and other methods.
(2) the simulation experiment converts different levels of wind power into wind pressure, and then uses physical method (tension meter) for testing.
(3) in the wind tunnel experiment, the mast and load are placed in the wind tunnel to simulate the wind speed for testing.
Among the above three methods, the third method can provide a value close to the actual value. However, the cost and conditions of wind tunnel experiments are very high. For example, if a 18-meter-high mast with load is used for wind tunnel experiments, is there such a large wind tunnel? Can I do it? How much does it cost? It's all a difficult problem. Therefore, for mast manufacturers, the wind resistance index of the mast can only be provided by the first two methods mentioned above.
2) Calculation method of mast wind resistance energy
(This calculation method is the theoretical calculation formula given by our company when the mast is not loaded according to the material, structure and height of our company's mast, which is for reference only.)
For example, the wind resistance performance of the lifting rod is calculated A4-270-2300-7600, and the benchmark wind speed is 100 km/h.
1. Technical conditions
1.1. The benchmark wind speed of lifting rod design = 100 km/h ≈ 28 m/s
1.2. When ▽ = 28 m/s, estimate the wind resistance D that the lifting rod can receive.
1.3. There are 4 lifting rods in total. See the table for specific sizes.
Pipe od 284 242 229 202
Length 1700 1700 1700 1700
Wind level wind speed wind pressure comparison table (mechanism and structure design reference)
Wind scale and Wind speed,Wind force list (for designed)
Wind level name
Wind name wind speed Wind speed wind pressure W0 = V2/16(kg/m2),10N/m2 land ground object sign sea surface state
km/h (m/s)
8 Fresh gale strong wind 62-74 17.2-20.7 18.49-26.78 micro branches are destroyed, and the resistance of people moving forward is very strong.
9 Strong gale Strong wind 75-88 20.8-24.4 27.04-37.21 the building has small damage
10 Whole gale wind 89-102 24.5-28.4 37.52-50.41 trees can be pulled up to damage the building
11 Storm Storm 103-117 28.5-32.6 50.77-66.42 rare on land, there must be widespread destruction
12 Hurricane Hurricane> 117 32.7-36.9 66.42-85.1 rare on land, with great destructive power and surging waves