30results about How to "Small external force" patented technology

The invention discloses a municipal drainage pipeline which comprises a pipeline body. A power mechanism is arranged in the pipeline body. A second conic gear is arranged on the power mechanism. Two fixed plates are fixed to the bottom in the pipeline body, one fixed plate is rotationally connected with a first connecting shaft in a sleeved manner, and the other fixed plate is rotationally connected with a second connecting shaft in a sleeved manner. A spiral conveying rod is fixed to the opposite ends of the first connecting shaft and the second connecting shaft together. One end of the second connecting shaft is fixed to one side of the second conic gear. A rotating shaft is arranged on the power mechanism. According to the municipal drainage pipeline, flowing water can provide power forrotating of the spiral conveying rod and reciprocating moving of a circular ring, and therefore impurities in the pipeline body can be cleared away well, the blocking situation can be avoided, and itis guaranteed that drainage work is done normally; and meanwhile, the pipeline body can be protected well, external force can be effectively offset and relieved, external force is prevented from directly acting on the pipeline body, and the service life of the pipeline body is prolonged.

The invention relates to the field of positioning of milling cutters, in particular to clamping equipment for a milling cutter. The clamping equipment comprises a rack, wherein a channel into which the milling cutter penetrates is arranged in the center of the rack; a pentagonal blind hole matched with a pentagonal cylinder arranged at the top end of the milling cutter is formed in the top end ofthe channel; air cylinders are respectively arranged on the two sides of the channel; clamping plates for clamping and fixing the milling cutter are arranged on piston rods of the air cylinders; manual charging valves are arranged on the air cylinders; adjusting chambers are separately arranged on the air cylinders; threaded holes are formed in side walls, close to the milling cutter, of the adjusting chambers; the aside parts of the threaded holes are connected with springs; the springs are connected with detection plates which are used for clamping the milling cutter and detecting whether the milling cutter is inclined or not; the detection plates are connected with a threaded rod in a rotating manner; the threaded rod penetrates through the threaded holes and enters into the adjusting chambers; the threaded rod is positioned at one end of the inner part of an adjusting channel and a big gear are fixedly mounted on the threaded rod; and adjustment mechanisms which are driven by the big gear so as to automatically adjust the milling cutter when the milling cutter is inclined are arranged in the adjusting chambers.

The invention provides a method and a clamping device which can be used for surface treatment such as cleaning, passivation, chemical oxidation, etc. in an elongated tubular metal part. The clamping device comprises a left clamping plate, a right clamping plate, a hose, a solution pump and a solution box. When the clamping device works, the solution pump is powered on. By the pumping action of the solution pump, the solution in the solution box flows through a solution control valve, the right clamping plate, the inner wall of the elongated tubular metal part, the left clamping plate in order, and returns to the solution box through the retractable hose after reaching the solution pump, so that the process for treating the surface of the inner wall surface of the elongated tubular metal part is completed.

The invention relates to a disk cutter layout design optimization method of development machine, concerning not micro and multi-modal disk cutter layout design optimization problems, especially applicable to full-face rock tunnel boring machine tool optimized layout design. A full-face rock tunnel boring machine knife tool layout design method, first determine disc hob position on the knife set and knife set overall technical performance parameters, in accordance with the actual knife tool layout technical requirements of the full-face rock tunnel boring machine, establishment of the binding properties of complex nonlinear multi-objective optimization model for knife tool layout; layout tool to establish grading optimization design model of knife tool layout polar pathway and angle calculation; putting the knife tool polar pathway and disc cutter knife polar angle as a design variable, adoption the genetic algorithm. The invention fast and effective in the determination of the knife tool optimized layout on the knife disc, made the knife disc having a small outside force and outside torque, thereby prolonging knife disc, knife tool and knife disc axletree life of the development machine, shorten the design cycle and improve design efficiency .

The invention discloses a novel gravure press and a processing method thereof, and belongs to the field of printing equipment. The novel gravure press comprises a buffer structure and a force transmission structure; the buffer structure is connected with the force transmission structure through a spring; the force transmission structure is connected with a No.2 rotating wheel through a linkage rod; the No.2 rotating wheel is connected with a No.3 rotating wheel through a linkage plate; the linkage plate is provided with a bolt connector; and the outer side of the No.3 rotating wheel is in contact with the outer side of a roller. According to the novel gravure press, through the No.3 rotating wheel, the No.2 rotating wheel, the force transmission structure and the buffer structure, force generated during rotation of the roller can be reduced, and the buffer effect is achieved; and excessive damage to parts is avoided.

The invention discloses a vehicular television with a damping device. The vehicular television comprises a base, a mounting rack, damping rods and a television body and is characterized in that the mounting rack is connected below the base, the damping rods are connected to two sides of the mounting rack and the lower end face of the base, the mounting rack comprises a first outer tube and a firstinner rod, a ball head is fixedly welded to the top end of the first outer tube, a ball head fastener is fixedly connected to the part, above the ball head, of the base, the first inner rod is arranged inside the first outer tube, the first outer tube is further provided with a locking device, a fixed plate is fixedly welded to the top end of the first inner rod, a first spring is mounted insidethe first outer tube above the fixed plate, the fixed plate at the bottom end of the first spring is provided with an annular groove, the bottom end of the fixed plate is provided with a chuck, and alimit piece is fixedly welded to the first inner rod below the chuck. The vehicular television is good in damping effect, convenient to mount and use, capable of being popularized and used, and the like.

The invention discloses a feed stirring device for animal husbandry. A stirring barrel is arranged on the top of the base, and a feeding port is opened on the stirring barrel. A discharge device is arranged on the side wall of the stirring barrel. One end moves through the coupling to fix the stirring shaft, the outer wall of the stirring shaft is provided with a stirring bracket, the inner cavity of the other end of the stirring bracket is plugged with a rotating cleaning head, and the inside of the mixing bucket is provided with a protective layer , the rotating cleaning head includes a shaft, the outer wall of the shaft is sleeved with a bearing, the outer wall of the bearing is sleeved with a brush ring, and the upper and lower ends of the shaft are provided with screw holes. The discharge device There is a feeding port on the top, the inner cavity of the discharge device is provided with a rotating sleeve, and the outer wall of the rotating sleeve is sleeved with gears, and the inner cavity of the unloading device is provided with a strut, and the strut The outer wall of the feeder is sleeved with a screw feeding device, and the animal husbandry feed mixing device can fully mix the feed and prolong the service life.

The invention discloses a municipal drainage pipe, which comprises a pipe body, a power mechanism is arranged in the pipe body, a second bevel gear is arranged on the power mechanism, and two fixing plates are fixed on the bottom of the pipe body, wherein A first connecting shaft is rotatably socketed on one fixed plate, and a second connecting shaft is rotatably socketed on the other fixed plate. The opposite ends of the first connecting shaft and the second connecting shaft are jointly fixed with a screw feeding rod, so One end of the second connecting shaft is fixed on one side of the second bevel gear, and the power mechanism is provided with a rotating shaft. The invention can provide power for the rotation of the screw feeding rod and the reciprocating movement of the ring through the flowing water, so that the impurities in the pipe body can be cleaned well, the blockage can be avoided, and the drainage work can be guaranteed normally. The pipe body is well protected, which can effectively offset and reduce the external force, prevent the external force from directly acting on the pipe body, and prolong the service life of the pipe body.

The invention discloses an air vehicle shock absorption foot stand which comprises an inner shaft provided with a semi-closed inner cavity, wherein a spring is arranged in the inner cavity of the inner shaft in a sleeving manner; the inner shaft is arranged in a sleeve in a sleeving manner; the bottom end of the inner shaft is connected with an inclined frame; and the inclined frame is connected with a pulley assembly. According to the air vehicle shock absorption foot stand, an inner sealing structure is formed in a manner that the sleeve and the inner shaft penetrate through oil seal, and the spring mounted inside, by the action of resistance oil, allows extension and contraction of the inner shaft to exert buffering and shock absorption effects; the incline frame fixed with the pulley assembly absorbs partial impact force when the inner shaft extends out, so that an outer force acting on the pulley assembly is weakened greatly; after a magnet ring is powered-on, the magnet ring generates a magnetic field and absorbs round sheet iron fixed on a right wheel hub, so that braking and speed reducing effects are exerted; the air vehicle shock absorption foot stand is compact in structure, high in precision smooth, smooth and stable in operation and high in practicability; the speed reducing and braking sensitivity and the reliability of the pulley assembly are high; and the service life of an air vehicle is prolonged effectively.