5results about How to "Accurate load" patented technology

This utility model relates to a bearing vibration testing device applied in the field of testing equipment. In this solution, the clamping assembly drives the displacement bracket through an electric guide rail, so that the buffer joint flexibly contacts the outer ring of the bearing, achieving stable fixation while avoiding damage and preventing displacement from affecting the results during testing. The vibration probe is in close contact with the bearing, and the control terminal transmits and analyzes data in real time to ensure accurate testing. When not in operation, the flexible load assembly supports the iris structure to avoid interfering with assembly. Before testing, the flexible adaptable contact adjustment blade automatically adjusts to fit the bearing. During testing, it releases resistance to provide a stable load, accurately simulating actual force, allowing vibration testing to be carried out in an environment close to actual working conditions. The replaceable load assembly can quickly replace the weight ring through magnetic connection, flexibly adjusting the load to meet the needs of different scenarios, improving the authenticity and reliability of testing. The overall operation is simple and adaptable to the testing of various bearings.

The utility model belongs to the technical field of powder metallurgy bearing testing, and particularly relates to an automobile motor powder metallurgy bearing vertical friction performance testing device which comprises a bottom plate. A mounting through hole is formed in the center of the bottom plate, and a servo electric cylinder is arranged on one side of the top surface of the bottom plate; a telescopic shaft of the output end of the servo electric cylinder is connected with a push block. The other end of the push block is connected with a tension seat; a test part is arranged on the tension seat, the center of the tension seat is arranged at the mounting through hole of the bottom plate, a driving part is arranged at the lower part of the tension seat, and the driving part is used for cooperating with the test part to test the performance of the to-be-tested bearing together. According to the utility model, the testing component and the driving component are matched for use, so that different loads can be increased for testing according to testing requirements, the testing repeatability and accuracy are greatly improved, the testing is more time-saving and labor-saving, the time cost is reduced, and the product development efficiency is improved.

The application discloses a lower limb auxiliary driving mechanism and a robot, which comprises a thigh assembly and a lower leg assembly connected with the thigh assembly, and a connecting end of a thigh connecting piece two and the lower leg assembly forms a knee joint. In the application, a constant force load mechanism is arranged on the thigh assembly, constant tension of a spring is converted into a compensation torque acting on the knee joint, so that the compensation torque can directly offset part or all of the bending moment generated by the weight of the lower limb on the knee joint, thereby realizing accurate compensation of the static load of the knee joint, reducing the driving burden when the joint maintains a posture, and the constant force load spring serves as a parallel auxiliary execution mechanism and jointly bears the load of the knee joint with a motor driving system. Through the parallel sharing mode, the joint load originally borne by the motor can be reasonably distributed, the motor works in a relatively stable and high-efficiency interval more, peak load is reduced, current impact is reduced, and overall driving efficiency is improved.

This invention relates to the field of marble slab processing technology and discloses a marble slab fine trimming device, including a slab conveyor. Marble slabs are placed on the conveyor belt of the slab conveyor. A mounting frame is fixedly installed on one side of the slab conveyor. A fixing plate is fixedly installed on the inner side of the mounting frame. An adjustment mechanism is provided on the fixing plate. Four trimming mechanisms are provided inside the adjustment mechanism. The adjustment mechanism includes three sets of first hydraulic cylinders fixedly installed at one end of the mounting frame. A concave-convex plate is fixedly installed at one end of the telescopic rod of the three sets of first hydraulic cylinders. An upper mounting plate is fixedly installed at the upper end of the concave-convex plate. This marble slab fine trimming device, through its overall coordinated use, facilitates the replacement of different grinding wheels and irregularly shaped grinding wheels. It also adapts to the original switching structure, reducing tool costs and operational difficulty, and also achieves multi-functionality, improving equipment versatility and processing efficiency.

The invention discloses a low-altitude wireless access network resource scheduling method and system, and relates to the technical field of communication, and the method comprises the steps: determining a compression ratio set of a current time slot of any unmanned aerial vehicle through a compression ratio optimization-context multi-arm bandit algorithm; based on a historical node load sequence of the low-altitude wireless access network, a load prediction model based on mixed sampling and attention enhancement adaptive fusion is adopted to output a predicted node load sequence; determining a resource scheduling action set of the current time slot through a multi-agent model by taking a maximum service time delay reward and a load balancing reward as targets according to each compression ratio set and the predicted node load sequence; based on the scheme, through hierarchical cooperation of compression ratio optimization and load prediction, resource allocation of minimum average service delay and load balance is realized through a resource scheduling algorithm based on a multi-agent model, and network adaptability and service reliability in a low-altitude scene are improved.