36results about How to "Realize the deceleration effect" patented technology

The invention discloses an exploration support, an exploration apparatus and an exploration method which are intended for detecting geology of the surrounding rock of a tunnel. The exploration apparatus includes a laser range finder, a LTD ground penetrating radar and an exploration support. The exploration support includes a mobile support, an axial rotation support, a radial rotation support and a driving apparatus. The radial rotation support is disposed on the mobile support, and rotates cooperatively with the mobile support. The radial rotation support and the axial rotation support intersect in a crossed shape. The radial rotation support is telescopic along the axial direction thereof. The driving apparatus drives the axial rotation support to rotate and drives the radial rotation support to rotate. According to the invention, compared with prior art, the exploration support, the exploration apparatus, and the exploration method are advantaged by capabilities of continuously and accurately exploring the cross-section of the tunnel, accurately positioning the detection result, and being supportive in forming a 3D geological change graph of the surrounding rock of the tunnel in a region in an accurate and efficient manner.

The invention relates to a forward pop-up stabilization device for a revolving AUV horizontal fin, which belongs to the fields of fluid mechanics, maneuverability and stability of an underwater vehicle. The horizontal pop-up movable fin mechanism, the left and right horizontal pop-up movable fin mechanisms are symmetrically arranged on the horizontal fins on both sides; the left horizontal pop-up movable fin mechanism includes a movable fin and a hydraulic eject mechanism, and the front end of the movable fin is ejected by hydraulic pressure The mechanism is installed on the end face of the horizontal fin, and can control the rotation of the movable fin plate through the hydraulic ejection mechanism to realize the outward ejection or retraction of the movable fin relative to the horizontal fin; the hydraulic ejection mechanism is located at the front end of the horizontal fin. The invention can quickly realize the deceleration effect by popping up the stabilization device, and the deceleration effect is increased by 30%; at the same time, the area of ​​the control fin plate is increased by 70%, and the extension of the fin plate is increased by 460%. The present invention increases the wetted area of ​​the stabilizing fin after the horizontal fin is ejected.

The invention relates to the technical field of oil extraction machinery, in particular to an automatic speed-changing wide-swing-angle oil pumping machine. The automatic speed-changing wide-swing-angle oil pumping machine comprises an electric motor, a speed changing mechanism, a swing arm support, a swing arm arranged on the swing arm support, a support provided with a fixed pulley and a wellhead oil pumping device, wherein the speed changing mechanism is connected with a driving crankshaft wheel, the driving crankshaft wheel is meshed with a driven crankshaft wheel, the driving crankshaft wheel is connected with a connecting piece through a bearing, one end of the connecting piece is connected with the driven crankshaft wheel, the other end of the connecting piece is connected with the swing arm through a connecting rod, a sliding chute is arranged on the connecting piece of which one end is connected with the driven crankshaft wheel, and a bearing on the driven crankshaft wheel is sleeved in the sliding chute. The automatic speed-changing wide-swing-angle oil pumping machine disclosed by the invention has the advantages that when the two crankshaft wheels are in rotation, since the position of the bearing of a driven pulley is changed, the position of the connecting piece can be also correspondingly changed, a motion trail of the connecting rod is affected by the motion of the connecting piece, the speed of the wellhead oil pumping device in the up-stroke is higher than that in the down-stroke, the oil leakage problem existing in an oil pumping process is avoided, and the oil pumping efficiency is increased.

The invention discloses an explosion proof type vehicle running prevention blocking device based on energy conversion. The device comprises a fixed base and an arresting cable device arranged on the fixed base; a brake steel wire rope on the arresting cable device is connected with a vehicle, and when the vehicle speed is out of control, emergency brake is provided; an explosion proof type energyabsorbing device is arranged in the arresting cable device, and through the explosion proof type energy absorbing device, kinetic energy of the vehicle can be converted into internal energy. The blocking device can be applied to various vehicles under the coal mine, the stable blocking brake force is provided for the vehicles with speed out of control, the phenomenon that the speed of the vehiclesunder the coal mine is out of control is effectively avoided, the reasonable protection measure is provided for out-out-control speed of the vehicles under the coal mine, the coal transportation vehicle safety situation is optimized, the vehicle safety property is improved, operation safety coefficient of the vehicles is improved, and the mine system safety is improved.