49results about How to "Avoid mechanical shock" patented technology

The invention discloses a power-ceaseless gear transmission which relates to a transmission and aims at solving the problem that the conventional transmission can not bear large loads due to the interruption of gear shifting power. The power-ceaseless gear transmission comprises a clutch, a one-way wheel, a main driving gear mechanism and an assistant driving mechanism, wherein the main driving gear mechanism and the assistant driving gear mechanism have the same gear mechanisms; a first inner gear sliding sleeve on the main driving gear mechanism slides left and right and is matched with a first-gear main driving wheel and a second-gear main driving wheel which are adjacent; a second inner gear sliding sleeve on the main driving gear mechanism slides left and right and is matched with a third-gear main driving wheel and a fourth-gear main driving wheel which are adjacent; a third inner gear sliding sleeve on the assistant driving gear mechanism slides left and right and is matched with a first-gear assistant driving wheel and a second-gear assistant driving wheel which are adjacent; a fourth inner gear sliding sleeve on the assistant driving gear mechanism slides left and right and is matched with a third-gear assistant driving wheel and a fourth-gear assistant driving wheel which are adjacent; and the power transmission is realized by the clutch and the one-way wheel. The invention is suitable for various types of large and heavy type engineering machineries and transport tools.

The invention discloses an S7-300 electric control protection comprehensive test technology of a mine hoist, which belongs to a research scope of a novel theory and a novel method of safety production in energy source and environment science and belongs to an underground operating personnel management technology and a safety production technology for a coal mine in industry (energy source). According to the S7-300 electric control protection comprehensive test technology of the mine hoist, disclosed by the invention, the requirement on detection and protection in every day according to Coal Mine Safety Regulation is met; the safe reliability of a PLC (Programmable Logic Controller) electronic control system of the mine hoist can be judged, and serious accidents are prevented from happening; and the requirement on electrical control PLC development of the mine hoist is conformed; and by utilizing related software and the combination of three test methods, i.e an on-line dynamic test for changing a preset value, an on-line static test for setting a variable list and an off-line static test for simulating the software, all hardware and software which are electrically controlled by the PLC of the mine hoist are subjected to a comprehensive test, and the mechanical shock on the mine hoist is prevented to the maximum.

The invention relates to a temperature tester based on a film type temperature sensor and a manufacturing method, comprising: a cylinder outer protection tube, wherein a first space and a second space are formed by concaving inwards on the upper part and the lower part along the length direction and connected together through a via hole; a film type temperature sensor, arranged in the inner of the outer protection tube through the first space, the second space and the via hole; and fillings, filled in the first space and the second space of the outer protection tube, to fix the film type temperature sensor in the inner of a first protection tube and a second protection tube to become an integer. According to the invention, the film type temperature sensor in the space of the outer protection tube is processed by the filled fillings or ceramic paste based on the temperature tester of the film type temperature sensor, and the pins of the sensor and the wire connecting parts can be fixedstably. Outer connecting metal wires at the lower space are fixed stably through the fillings, therefore, outer mechanical impact is effectively prevented to the film type temperature sensor through the outer connecting metal wires at the lower part.

The invention discloses a non-contact train operation system and an operation method thereof. The operation system comprises: a traction substation, a catenary, a non-contact train and a rail which are sequentially electrically connected. The substation is electrically connected to form a current loop; the non-contact train includes a control system, as well as a pantograph device, a monitoring device and an arc inspection device that are connected to the control system by communication. The control system is located inside the non-contact train and is controlled by The pantograph device includes a fixedly connected pantograph arm and a pantograph slide, the pantograph arm is set on the top of the non-contact train, the pantograph slide is electrically connected to the catenary through an arc, a monitoring device and an arc inspection device They are all arranged at the connection between the pantograph slide plate and the catenary; the present invention solves the problems in the prior art that there is a large mechanical impact between the pantograph and catenary, serious material wear and rapid decline in the service performance of the pantograph and catenary current receiving system.

The invention provides a method and a system for controlling double door locks. The method includes: detecting whether or not a first door lock and a second door lock are locked synchronously within a preset first time interval when the situation that the first door lock is at a secondary lock position is detected; when the situation that the first door lock and the second door lock are at the secondary lock position simultaneously is detected, respectively controlling the first door lock and the second door lock to move to a primary lock position from the secondary lock position according to a determined PWM (pulse-width modulation) duty ratio; judging whether or not the first door lock and the second door lock are at the primary position simultaneously within a preset second time interval; when the first door lock and the second door lock fail to be at the primary lock position simultaneously, controlling the first door lock and the second door lock to stop locking, so that damage to a rear door and a body of an automobile due to asynchronous locking of the double door locks and excessively high locking motor voltage can be reduced.

The invention relates to a gravity type capable-of-combining rail type wheel axle stereoscopic warehouse which comprises 1-50 layers of wheel axle supports and a plurality of wheel axle storage positions evenly distributed on the wheel axle supports. Each layer of wheel axle support comprises two rail type wheel axle support long cross beams which are placed in parallel and are provided with gradients along the length direction relative to a horizontal plane, wheel axle outlet fixing type stopping blocks arranged at one ends of the rail type wheel axle support long cross beams, and the plurality of wheel axle storage positions distributed on the rail type wheel axle support long cross beams. One wheel axle is stored in each of the plurality of wheel axle storage positions. A warehouse-in side wheel axle stopping block is arranged at one end of each wheel axle storage position, a warehouse-out side wheel axle stopping block is arranged at the other end of the each wheel axle storage position, and a goods allocation center stopping block is arranged at the center of each wheel axle storage position. Each wheel axle outlet fixing type stopping block and each warehouse-out side wheel axle stopping block have the same direction. A wheel axle is arranged between each warehouse-in side wheel axle stopping block and each warehouse-out side wheel axle stopping block. Two adjacent layers of wheel axle supports are connected through a between-layer support perpendicular to the long cross beams. The gravity type capable-of-combining rail type wheel axle stereoscopic warehouse is convenient to use, low in cost and suitable for various fields.

The present invention is applicable to the technical field of robot control, and provides a robot control method, system and robot, including: when a motion command is received, the parameter value of the motion command is obtained and calculated, and the maximum torque value of all motion axes of the robot is obtained, compared The maximum torque value of each motion axis and the preset maximum torque value of each motion axis. If there is a motion axis whose maximum torque value is greater than the preset maximum torque value, the motion axis is used as the target motion axis; according to the target motion axis The preset maximum torque value, calculate the maximum acceleration value and maximum deceleration value of the target motion axis, plan the speed of the robot according to the maximum acceleration and maximum deceleration values ​​of the target motion axis, obtain the first speed planning result and output it, so as to The acceleration value of the robot is adjusted. The invention can detect and judge the motion state of the robot in real time, plan the speed of the robot, adjust the acceleration value, and reduce the loss of the robot.

The invention discloses an energy-saving pumping unit which aims at solving the problems that a beam-pumping unit in the prior art is large in power consumption, low in pumping efficiency and large in oil field capital investment. The energy-saving pumping unit comprises an installation platform and a truss and further comprises a guide wheel installation rack, a roller installation rack, a roller, a coupler with a brake, a motor assembly, a motor installation rack, a beam hanger, a connecting hinge, a balance weight guide component, a pumping rod, two first ropes, two second ropes and two guide wheel assemblies. The two guide wheel assemblies are installed on the guide wheel installation rack, the roller is installed on the roller installation rack, the motor assembly is installed on the motor installation rack, the roller installation rack and the motor assembly are both arranged on the installation platform, the guide wheel installation rack is installed on the installation platform, the roller is connected with the motor assembly through the coupler with the brake, and the installation platform is installed at the top end of the truss. The energy-saving pumping unit is used in the pumping field.