4 results about "Stall torque" patented technology

This application provides a torque measuring mechanism and a torque measuring device, relating to the field of torque testing technology. The torque measuring device includes a housing and a measuring component; the housing includes a first cavity and a second cavity coaxial and connected along a first direction, the first cavity being used to at least partially accommodate a motor; the measuring component is used to measure the stall torque of the motor and is at least partially engaged in the second cavity, with one end of the measuring component facing the first cavity being detachably connected to the motor.

An automatic testing device and method for the performance of mining nut installers includes: a test platform, and a rotational performance testing device, a maximum installation and disassembly torque testing device, a mechanical bench, a hydraulic system, and a measurement and control system mounted on the test platform. The rotational performance testing device is used to test the rated torque and stall torque of the mining nut installer; the maximum installation and disassembly torque testing device is used to test the impact frequency and impact torque of the mining nut installer; the mechanical bench is used for fixing and moving the mining nut installer; the hydraulic system is used to control the movement of the mechanical bench; and the measurement and control system is used to realize the automatic testing of the mining nut installer. This invention effectively solves the key problems of high reliance on manual labor, poor repeatability of experimental results, and low overall testing efficiency in existing testing processes, significantly improving the automation level and reliability of the testing process.

The application provides a method and system for controlling vehicle starting based on clutch torque, and relates to the technical field of vehicle starting control, and comprises the following steps: S1, an electronic control unit obtains an initial starting torque of a clutch according to an engine speed, a preset hill compensation amount and a preset engine speed-torque correspondence relationship; S2, the electronic control unit corrects the initial starting torque to obtain a corrected starting torque according to a vehicle weight compensation coefficient matched in a preset standard vehicle weight data-vehicle weight compensation coefficient correspondence relationship list according to vehicle weight data; S3, the electronic control unit limits the corrected starting torque in real time to obtain a limited starting torque according to a preset torque change rate threshold; and S4, the electronic control unit corrects the limited starting torque according to a clutch stall torque and an aging compensation amount to obtain a target starting torque, and controls the clutch to control vehicle starting according to the target starting torque. The beneficial effect is to improve starting comfort.

The application discloses a kind of quantitative test method and system of robot joint module peak stall torque, it is related to robot joint performance evaluation technical field, comprising: extracting the torque time history curve of joint module, peak stall torque is defined as controlled low-frequency fatigue loading process, the mapping model of torque amplitude and failure cycle number is established;Test system is constructed, torque-current static calibration is carried out;Specific excitation function is embedded in servo driver current loop;Bus voltage and rotational speed change rate are monitored in real time, using back electromotive force compensation algorithm and combining energy dissipation discharge loop, the voltage and current impact of unloading moment is inhibited;Repeatedly loaded until structure is damaged, cycle number is recorded, peak torque-life curve is drawn, as whole machine life prediction basis.The application realizes the quantitative correlation of peak stall torque and fatigue life, realizes the quantitative evaluation from static index to dynamic life, provides basis for robot whole machine life prediction, improves test precision.