9results about How to "Large damping force" patented technology

According to the radar labeling tool provided by the utility model, the return spring is arranged at the joint of the rotating shaft and the shaft sleeve, and the return spring not only can reduce the gap between the rotating shaft and the shaft sleeve, but also can increase the damping force of the cover plate, so that the surface of a radar is prevented from being damaged by the cover plate due to overlarge overturning force; when labeling is needed, the radar is arranged in the containing groove, the top face of the radar is higher than the top face of the tool base, then the cover plate is rotated to make the inner wall of the cover plate abut against the top face of the radar, the multiple positioning holes correspond to the multiple positioning pins one to one and are matched with the multiple positioning pins, and therefore it can be guaranteed that the upper edge and the lower edge of the cover plate are parallel to the upper edge and the lower edge of the radar; the upper edge and the lower edge of the labeling hole are parallel to the upper edge and the lower edge of the radar, and at the moment, labeling is ensured to be correct through labeling of the labeling hole.

This invention discloses a shoulder joint exerciser, including a shoulder brace and an upper arm brace, with a hinged rod assembly between them to maintain deflection. A first rod hinged to the back of the shoulder brace is rotatably connected to the end of a second rod hinged to the back of the upper arm brace. An electric push rod is rotatably mounted on the first rod, with its output end hinged to the second rod and positioned close to the upper arm brace. The device also includes a worm gear, with worm wheels respectively mounted on the shafts connecting the first and second rods to the shoulder brace and upper arm brace, the worm gear meshing with the worm wheels. This shoulder joint exerciser has a simple structure and is easy and quick to operate. It avoids the pain or secondary injury caused by the arm falling rapidly during arm raising and lowering due to muscle weakness or poor coordination.

The invention discloses a vehicle knob control method, a controller, a vehicle, a medium and a program product, and relates to the technical field of vehicles. The knob comprises a knob part and a force feedback motor, the force feedback motor is connected with the knob part, and the force feedback motor is configured to provide rotation damping force opposite to the rotation direction of the knob part; the vehicle knob control method comprises the steps that the real-time state of a knob part is obtained; the real-time state comprises a real-time rotation speed; determining a target output damping force of the force feedback motor according to the real-time rotation speed; wherein the value of the target output damping force is in negative correlation with the real-time rotation speed; and adjusting driving parameters of the force feedback motor according to the target output damping force. According to the invention, differentiated hand feeling feedback in different scenes can be realized, so that different tactile feedback requirements of drivers in different driving scenes can be met.

The utility model relates to a transformer substation. The transformer substation comprises a transformer substation body, a mounting base, a bearing, a first protection assembly and a second protection assembly. The conductive movable rod is connected and matched with the first baffle assembly, the magnetic piece is arranged on the outer side of the conductive movable rod, and the conductive movable rod is electrically connected with the electromagnetic coil. The second baffle assembly is provided with a storage cavity used for storing magnetorheological fluid, and the electromagnetic coil is electrically connected with the conductive movable rod. The second baffle assembly is used for being in abutting fit with the mounting base so as to prevent external water from entering the position where the bearing assembly is located. The first baffle assembly is wound around the outer side of the second baffle assembly, and the first baffle assembly and the second baffle assembly are oppositely arranged. When the first baffle assembly can move in the direction close to or away from the second baffle assembly under the action of external force, the conductive movable rod can be matched with the magnetic part in a telescopic mode. According to the transformer substation, the anti-collision performance can be dynamically adjusted, excessive interference on the transformer substation body is avoided, and the protection performance is greatly optimized.

This application provides a vehicle steering control method, a vehicle, and a storage medium, relating to the field of vehicle control technology. The electronic control unit (ECU) can, based on a target steering angle, begin controlling the rotation of the electric steering transmission structure, which in turn drives the steering tie rod to steer the wheels via a linear damping structure. The ECU receives the actual steering angle of the electric steering transmission structure from a second steering angle sensor. When the actual steering angle of the electric steering transmission structure is less than the target steering angle, and the difference between the actual and target angles is less than a set angle threshold, it indicates that the actual steering angle is about to exceed the target angle, meaning the wheel steering angle is approaching the angle required by the driver's steering wheel. The ECU then controls the linear damping structure to increase the damping force applied to the electric steering transmission structure, thereby limiting the wheel steering angle to the angle required by the driver's steering wheel and preventing over-rotation of the wheels.

The application provides a bidirectional speed type magnetic damper, which comprises a shell, a rack movably inserted into the shell, a transmission device and two passive conductor plates, two passive control devices, two conductor plates and a magnet assembly arranged in the shell, wherein the transmission device comprises a first rotating rod, a second rotating rod and a third rotating rod which are pivotally connected to the shell from bottom to top; the passive conductor plates are sleeved to the first rotating rod; the passive control devices are sleeved to the second rotating rod; the conductor plates are sleeved to the third rotating rod; in the working state, with the rack sliding relative to the shell, the conductor plates rotate to cut the magnet assembly and the passive control devices; the passive conductor plates rotate to cut the passive control devices. The embodiment can increase the damping force, delay the appearance period of the peak damping force of the damper, enhance the damping effect of the damper and reduce the cost of the damper relative to the active control technology.

The application provides a suspension type vibration isolation system, belonging to the technical field of transportation vibration isolation, comprising: an outer frame connected with an inner frame through a plurality of vibration isolation mechanisms arranged in a cable-stayed manner; the vibration isolation mechanism comprises: an inertial container, the inside of the inertial container is provided with a series connection of an inertial mass structure and a damper, and the outside of the inertial container is connected in parallel with an elastic device; the suspension type vibration isolation system of the application adopts the parallel combination of the elastic device and the inertial container, the damper is added to the inside of the inertial container, wherein the elastic device is responsible for bearing, the inertial mass structure is responsible for generating inertial force, and the damper is responsible for generating damping force, so that the bearing problem is solved and the damping force is increased. The inertial mass structure is a new type of mechanical element, has the advantages of "high frequency resistance and low frequency", "small mass and large inertia", and the like. Due to the advantages of the inertial mass structure, the inertial mass structure has a wide application prospect in the field of vibration isolation and can well improve the vibration isolation effect of the vibration isolation system on low frequency vibration.

The application provides a method and device for protecting a stretch limit position, a vehicle and a storage medium. The method comprises: obtaining a vehicle speed value when it is determined that the vehicle enters a preset stretch limit position protection mode; increasing the current of a shock absorber in the vehicle according to the vehicle speed value; and increasing the damping force generated by the shock absorber according to the increased current, so as to protect the stretch limit position of the shock absorber. The above method obtains the vehicle speed of the shock absorber, and increases the current of the shock absorber at different speeds according to the vehicle speed of the shock absorber, so as to increase the damping force of the shock absorber at different speeds. When facing a larger impact, the problem of abnormal sound of the stretch limit position of the shock absorber can be better avoided by increasing the damping of the shock absorber, and the hard contact of the buffer device in the shock absorber is reduced, so as to reduce the influence on the durability of the shock absorber.

This invention discloses a magnetorheological fluid torsional vibration damping device and method for rotary guidance, belonging to the field of drilling engineering technology. It includes a shell and a central shaft, with a damping cavity formed between the inner wall of the shell and the outer wall of the central shaft. The damping cavity is filled with magnetorheological fluid. An inertial damping unit is arranged within the damping cavity, comprising a gear bearing and an electromagnetic damping mechanism. The electromagnetic damping mechanism includes an electromagnetic coil, a magnetically conductive outer ring, and a magnetically conductive inner ring. An annular groove is provided on the outer wall of the shell opposite the gear bearing, into which the electromagnetic coil is embedded, and the magnetically conductive outer ring is fixed. The magnetically conductive inner ring is embedded on the inner wall of the central shaft opposite the gear bearing. An axis acceleration sensor and a gyroscope are mounted on the central shaft. This invention obtains the vibration intensity and viscosity-slip vibration index at the current sampling moment, changes the current in the electromagnetic coil in real time, and then adjusts the damping force of the inertial damping unit by adjusting the viscosity of the magnetorheological fluid.