Application of Inclination Sensors in Engineering Equipment

Now more and more construction machinery equipment is changing from traditional mechanical-hydraulic system to electronic-hydraulic system. In particular, the widespread application of CANBus bus provides a very good technical platform for the upgrading of construction machinery products and the improvement of work efficiency. For example, pavers, graders, excavators, lifts, cranes, etc., in order to achieve automatic control, it is necessary to measure the posture of the vehicle body and the actuator, and safety is also widely valued. For example, the verticality measurement of the mast of the rotary drilling rig and the posture of the entire mechanical equipment itself need to be adjusted and horizontal before the drilling rig works; the lifting angle of the crane's boom and the excavation depth control of the excavator all require angle measurement and control. As a leader in the field of inclination measurement, Fuju Technology provides the construction machinery industry with various inclination

sensor products with different measurement accuracy, application occasions, input/output and appearance dimensions , including CANBus bus, RS485, RS232, 4~20mA and other output signals/interfaces. Excavation depth measurement and control of excavators and chassis leveling The depth measurement of excavators is to obtain depth data through mathematical calculation after measuring the angles of various components on the machine arm. Usually, it is necessary to measure the angle data of three points on the machine arm. At present, there is a laser method on the market to measure the excavation depth, but it is expensive and cannot be widely used. The inclination measurement method can greatly reduce the cost. The inclination products available include: single axis or dual axis (front and back and left and right inclination angle measurement) planer control of the leveler Usually, the planer angle of the leveler determines the height of the leveled ground, and the precise angle control also determines the flatness of the ground. Therefore, for the leveler, the planer angle is an important parameter that determines the working efficiency of the entire equipment. The inclination sensor only needs to be installed on the planer or on other positions that can truly reflect the planer posture. No other additional mechanical structure is required. The operator can set the required ground height data and flatness data, and the PLC will automatically complete the planer posture adjustment, thereby greatly improving the automation of the entire mechanical equipment. The inclination products available include: Single-axis or dual-axis (front and back and left and right inclination angle measurement) Drill bit control for hydraulic drilling rigs The drill bit posture of the hydraulic drilling rig determines the success or failure of the drilling process, or whether the final hole formed meets the requirements of the owner. At the same time, the project needs to drill holes at a certain angle, and the inclination sensor can easily achieve this requirement. This is to install the inclination sensor inside the drill bit to detect the drill bit posture in real time, or measure while drilling, or measure when the machine is stopped. The sensor is required to withstand large impact and good reliability. Fuju Technology Company can provide single-axis or dual-axis inclination sensors with various dimensions and large impact capabilities, and also provide azimuth measurement function, that is, when drilling deep holes, the drill bit may be horizontally offset. This function is achieved through magnetic azimuth sensors or gyroscopes. The tilt or azimuth products available include: Single or dual axis (front and back and left and right tilt angle measurement) Platform control and adjustment of lifts Usually, for lifts or lifting equipment with high travel, the angle measurement and control of the operating platform is related to the life safety of the operator. Therefore, it is necessary to measure, control and alarm the tilt angle of the operating platform and the base of the entire equipment. The tilt products available include: Single or dual axis (front and back and left and right tilt angle measurement) Chassis leveling of cranes and angle measurement of booms Cranes come in a variety of models and complete a large amount of lifting work around the world every day, but unfortunately accidents often occur. When loaded, the body may tilt or even flip over, and some accidents are tragic. Many conclusions have been drawn from the investigation of the accidents. One consensus is that most accidents can be avoided if the operator can get some form of warning before the accident is imminent. To reduce the occurrence of accidents, manufacturers have developed some safety systems: safe load displays, these mature systems can monitor the changes of cranes in real time. A necessary and key measurement for the system to work is the boom angle, which has a maximum range of 90 degrees (+/-45 degrees). It is measured by an inclination sensor, which is also a typical application area for inclination sensors. Before the crane works, the chassis of the entire equipment needs to be leveled, on the one hand to ensure safe operation, and on the other hand to achieve the maximum lifting tonnage. This is achieved by a dual-axis inclination sensor to measure the inclination of the chassis in all directions, and at the same time send the angle output signal to the PLC to drive the hydraulic cylinder to achieve the level of the chassis. The angle measurement of the boom is used to calculate the lifting height and prevent the entire equipment from overturning due to excessive lifting. The inclination products available include: Single axis or dual axis (front and back and left and right inclination angle measurement) Mast verticality measurement and control of rotary drilling rigs/pile drivers The verticality of the mast determines whether the drilling hole is qualified or not. Especially for pile drivers, verticality is an important indicator that determines the reliability of the building. Therefore, how to maintain good verticality or drill at a certain angle is a common problem encountered during construction. In an electro-hydraulic control system, this function can be achieved by mounting a dual-axis inclination sensor directly on the mast. At the same time, the operator can input the inclination data through the PLC's human-machine interface device, and the drill will automatically drill according to the set angle. The available inclination products include: single-axis or dual-axis (front-to-back and left-to-right inclination angle measurement) Application in retractable manipulators Retractable manipulators are load-bearing machines in the construction industry. Its simple structure, combined with its lifting capacity and versatility, and its ability to be unrestricted by location, make it competent for a large number of jobs outside the construction field. A retractable manipulator is basically a small weight-bearing machine with a retractable boom, designed to work on rough ground, so it also has to consider the problem of tipping over. Many manufacturers use padded tires to improve stability, which helps a little, but it does not provide an alarm signal and cannot prevent accidents when the conditions are met. Some manufacturers realize the seriousness of the problem and have introduced safety systems in the machine. There are two factors that cause the machine to tip over: the attitude of the cab and the inclination of the boom. These two changes can be easily measured with inclination sensors. For the cab's attitude, both the lateral and longitudinal axes need to be monitored, with a typical maximum angle of +/-30 degrees. The boom angle has the same characteristic effect as the boom angle of the crane. When actually loaded, any partial change in angle is equivalent to a large change in load. The relative length of the boom exacerbates this effect, especially when the boom is horizontal or nearly horizontal. The normal boom operating range is 0-90 degrees.