7results about How to "Stop smooth" patented technology

The utility model discloses a spiral swinging hydraulic device capable of being mechanically locked at any angle, which comprises a cylinder barrel, a spiral output shaft, a front end cover, a rear end cover, a piston, a disc spring and a thrust ring, the spiral output shaft is arranged in the cylinder barrel, the two ends of the spiral output shaft penetrate through the front end cover and the rear end cover respectively, the spiral output shaft further penetrates through the piston, the thrust ring and the disc spring, the spiral output shaft is provided with a piston connecting part and a boss connecting part, and a piston protruding ring protruding outwards is arranged in the middle of the piston and is connected with the inner wall of the cylinder barrel in a sealed mode. The cylinder barrel is provided with a right-handed rotation oil inlet and a left-handed rotation oil inlet which are respectively communicated with the right-handed rotation oil inlet area and the left-handed rotation oil inlet area; the disc spring is arranged between the rear end cover and the thrust ring, and the thrust ring is movably connected with the cylinder barrel without rotation. In the using process, the gear shaft can be stably stopped at a certain position for a long time and can be effectively locked, and work is safe and reliable.

The utility model is suitable for mine machinery and electrical control technical field provides a kind of for mining bottom cleaning machine rotation's double limit structure, it include: fixed base;Rotary support, rotary support is connected between fixed base by rotary reducer;Hydraulic motor, the hydraulic motor is used to drive rotary reducer inner ring rotation;Limit pin, limit pin inserts the hole in rotary support and extends into the limit slot of fixed base;And angle sensor for detecting the rotation angle of rotary support, through electrical detection rotation angle will reach limit when reducing in advance, reduce the loss of mechanical collision, limit stop pin can effectively stop rotation, when stop pin has abrasion, can be corrected abrasion amount by turning 90 degrees;The utility model can improve control precision and operation quality, enhance system reliability and security, improve environmental adaptability and maintenance convenience, prolong equipment service life and reduce maintenance cost.

This utility model discloses a precast power wall end mold with a walking mechanism, relating to the field of precast power wall technology. It includes a mold body, a first mold support welded to the bottom of the mold body, an inclined support welded to the side of the mold body opposite to the casting side, a first roller and a second roller mounted on the first mold support, an independent roller mounted on the inclined support, and a braking device for braking the first roller. The lowest points of the wheel surfaces of the first roller and the independent roller are at the same height, used for rolling support on the top plane of the upper horizontal section of an I-beam track. The second roller is a conical wheel located below the first roller, used for rolling against the bottom inclined surface of the upper horizontal section of the I-beam track. When used as the end mold of a precast power wall casting equipment, this utility model's precast power wall end mold achieves more stable movement and excellent controllability.

This utility model discloses a damping device, and discloses a cover plate and a toilet with the damping device. The damping device includes: a first rib inside the housing; a rotating assembly that can rotate in both directions through the housing, the rotating assembly including a shaft, the shaft having two radially protruding second ribs, the shaft, the second ribs and the inner wall of the housing defining a damping cavity for filling damping grease, the first ribs dividing the damping cavity into a first cavity and a second cavity, the side wall of the shaft having a circumferential surface that gradually changes distance from the central axis of the shaft, the circumferential surface and the first ribs forming a gap; by utilizing the oil gap that changes size with the rotation of the rotating assembly, the rotating assembly can generate a gradually increasing buffering effect when rotating forward, so that it can eventually stop stably, avoiding the shaking of external components connected and used with it when "stopping", and at the same time, it can smoothly and quickly reset when rotating in reverse.

The utility model discloses a low noise electric sliding platform relates to low noise electric sliding platform technical field, including fixed base, the downside front and rear both ends of fixed base are connected with a plurality of connecting blocks, and the outside lower extreme of connecting block is equipped with the damping box, and the downside fixed connection of connecting block has the buffer board, and the left and right sides of buffer board are slotted with a plurality of lower limit slide groove, and the downside front and rear both ends of buffer board are fixedly connected with damping spring, and the inside fixed connection of damping spring has the shock absorber, the upside left and right both ends of fixed base are fixedly connected with the support side frame, and the inside rotation of support side frame is connected with the rotation axis, and the left side fixed connection of rotation axis has the servo motor, and the right side fixed connection of rotation axis has the rotation lead screw, the outside screw thread connection of rotation lead screw has the removal sliding platform, the outside of servo motor is equipped with motor fixed frame, one side fixed connection of support side frame has a plurality of linear guide rails, and the outer surface slot of support side frame has a plurality of clamping grooves.

The application discloses a kind of router shell continuous injection molding equipment and molding process, it is related to injection molding equipment technical field, including machine tool, fixedly connected in the top of machine tool fixed die assembly and injection system;Fixed die assembly is close to the part of four corners and is equipped with through-hole, still include: linkage rod, slidably be internally provided in through-hole;Movable die assembly is provided with two groups, and is respectively installed in the two ends of linkage rod.The application is cooperated by setting symmetrical double movable die assembly and one fixed die assembly with double cavity, and is equipped with the moving assembly of making double movable die alternate operation, and the equipment realizes the real double position continuous production, when one side position is in injection, pressure maintaining or cooling phase, the other side position can carry out opening mould, ejection demoulding and closing mould preparation etc. action in synchronization, to overlap completely in time with the auxiliary process and main molding process which originally serial, must wait, significantly reduce equipment idle waiting period, greatly improve equipment utilization and production efficiency.

This invention discloses an electro-proportional brake valve pressure control system and method. The system includes a controller and a brake valve body, the latter comprising a brushless DC motor, a mechanical transmission assembly, and a pressure component. The control method is based on a target pressure command and feedback hydraulic pressure calculation error, and employs an improved PID control algorithm to generate motor control signals. The improved algorithm mainly includes: amplifying the proportional gain in the low-pressure range to accelerate response; controlling the motor to stop through delay logic to reduce residual pressure when there is zero command and the pressure is below a threshold; and controlling the motor to reverse to disengage from mechanical jamming when motor current protection is detected and the command is zero. This invention effectively improves the dynamic response speed at low pressures, significantly reduces system residual pressure, and possesses self-recovery capability from mechanical jamming, thereby improving the control accuracy and reliability of the brake valve.