With the rapid economic growth, more and more lifts are used in automobile maintenance industry. At present, the lifting and lowering of the equipment are generally controlled by hydraulic system. The disadvantage is that the speed of rising and falling of each oil cylinder is different due to different loads, and the lifting machine can not run synchronously, which leads to the tilt of the equipment and potential safety hazard.
Contents of utility model
The technical problem to be solved by the utility model is to provide a synchronous displacement detection device of the lift, which can detect the lifting and falling displacement of the lifting machine, so as to achieve the purpose of synchronous operation of the lifting machine by controlling the running speed of the lifting machine.
The technical measures adopted by the utility model are as follows:
The utility model relates to a synchronous displacement detection device for a lifting machine Displacement sensor A / D conversion circuit, voltage reference circuit, microprocessor and power supply system Displacement sensor It is connected with a / D conversion circuit, a / D conversion circuit is connected with voltage reference circuit, and a / D conversion circuit is connected with microprocessor.
The displacement sensor is a memory type Rope displacement sensor 。
The positive effect of the utility model is that: the displacement of the oil cylinder is detected by the displacement sensor, and the signal is converted and processed before being sent to the microprocessor. The microprocessor processes according to the displacement data, and the microprocessor adjusts the running speed of the lifting machine according to the processing results, so as to achieve the purpose of synchronous operation of the lifting machine, and solve the problem that the equipment is inclined and safe during the lifting process The problem of hidden danger.
Description of drawings
Fig. 1 is a structural diagram of the utility model. Fig. 2 is the A / D conversion circuit diagram of the utility model.
Specific implementation mode
As shown in Fig. 1 and Fig. 2, displacement sensor 1 is connected with a / D conversion circuit 2, a / D conversion circuit 2 is connected with voltage reference circuit 3, and a / D conversion circuit 2 is connected with microprocessor 4. The displacement sensor 1 is a memory type Rope displacement sensor 。
The displacement sensor 1 converts the displacement signal into a voltage signal, which is convenient for processing by a / D conversion circuit 2.
The A / D conversion circuit 2 converts the voltage signal output by the displacement sensor 1 into a digital signal. The voltage reference circuit 3 outputs a standard 5V voltage reference to a / D conversion circuit 2. The microprocessor 4 analyzes the result of a / D conversion circuit 2, and controls the running speed of the lift according to the analysis result. Power system 5 supplies power to the system.