6results about How to "Moderate friction" patented technology

This utility model relates to the field of yarn feeder technology, and discloses a guide roller assembly and a yarn feeder for a high-speed, multi-path yarn feeder. The guide roller assembly includes a bearing B, a bearing A, a roller, a mandrel, an elastic washer, and fixing screws. Bearing B is a floating bearing. An O-ring is added to the mandrel at the location of the floating bearing B. By changing the depth of the groove of the O-ring and the matching of the O-ring wire diameter, suitable friction can be obtained, stabilizing the static state of the inner ring of the floating bearing B, avoiding wear between the inner ring of bearing B and the mandrel, and ensuring that the bearing is always in a normal working state. This guide roller assembly has a simple structure and stable improvement effect.

The invention discloses a bridge cable detection robot control method, a bridge cable detection robot comprises an outer regular octagonal prism frame and an inner octagonal reinforcing frame, the top and the bottom of the outer regular octagonal prism frame are respectively provided with a front moving wheel set and a rear moving wheel set, the front moving wheel set comprises four H-shaped swing arms hinged to the outer regular octagonal prism frame, and the rear moving wheel set comprises four H-shaped swing arms hinged to the outer regular octagonal prism frame. A swing arm telescopic rod is hinged between the middle of each H-shaped swing arm and the inner octagonal reinforcing frame. Mecanum wheels are arranged on the sides, away from the hinged ends, of the H-shaped swing arms. The sensor assembly comprises a nine-axis attitude sensor and a pressure sensor for acquiring the pressure of the telescopic rod of the swing arm. The control method comprises the control steps of S1 to S7. The bridge inhaul cable detection robot is provided with a specific posture control algorithm, the stability of the bridge inhaul cable detection robot is greatly enhanced, the bridge inhaul cable detection robot can stably crawl on the inhaul cable in a complex environment, and the safety of the detection process is effectively guaranteed.

The invention relates to a sea water pump, in particular to a deep sea piston type sea water pump. Comprising a water side cylinder, an oil side cylinder and a piston rod which are coaxially arranged, and the top of the oil side cylinder is connected with the top of the water side cylinder; one end of the piston rod extends into a cavity of the water side cylinder and is connected with a water side piston in the water side cylinder, and the other end of the piston rod extends into a cavity of the oil side cylinder and is connected with an oil side piston in the oil side cylinder; the oil side cylinder is further provided with a buffering structure, the buffering structure comprises a structure that the two ends of an oil side piston are of step structures, an oil side cylinder cavity comprises a straight barrel cavity and step cavities located at the two ends of the straight barrel cavity, and the step structures are in clearance fit with the step cavities. The oil side cylinder is provided with a one-way valve communicated with the stepped cavity; the deep sea piston type sea water pump has the advantages of being small and exquisite in structure, good in deep sea environment adaptability and high in mechanical efficiency.

The invention belongs to the technical field of piezoelectric driving, and discloses a variable aperture rotating structure which comprises a rotating part, a piezoelectric assembly and a clamp. The rotating piece extends towards one side of the rotating piece and is provided with an elastic clamping part; a ceramic rod of the piezoelectric assembly extends into the elastic clamping part; and the clamp is clamped with the elastic clamping part so as to clamp the ceramic rod of the piezoelectric assembly. The ceramic rod of the piezoelectric assembly is used for driving the blades to move so as to control the size of the aperture, the structure is simple and compact, and the effect is good. The invention further discloses a camera module with the variable aperture rotating structure and an electronic product.

The utility model discloses a traction device of a bag making machine, which belongs to the field of bag making machines and comprises a rack, a driving roller and an auxiliary roller are rotatably mounted on the rack, a driving component used for driving the driving roller to rotate is arranged on one side of the rack, mounting grooves are formed in two sides of the rack, mounting seats are slidably mounted in the mounting grooves, and the auxiliary roller is mounted on the rack. The auxiliary roller is rotatably mounted between the two mounting seats, a screw rod is rotatably mounted on one side of the mounting groove, the mounting seats are in threaded sleeving connection with the screw rod, a storage groove is formed in the position, below the screw rod, in the rack, and the storage groove is provided with an adjusting part used for driving the screw rod to rotate; through the arrangement of the mounting grooves, the mounting seats, the screw rods and the adjusting pieces, the adjusting pieces can be used for driving the auxiliary rollers to ascend and descend, so that the distance between the two guide rollers can be adjusted according to the thickness of a packaging bag, the friction force between the guide rollers and the packaging bag is kept moderate, and the adaptability is improved.

The utility model relates to the technical field of traditional Chinese medicine cleaning, in particular to cleaning equipment for traditional Chinese medicine decoction piece production, which comprises a support, an arched protective cover is arranged above a support body, and a plurality of water spray pipes are arranged on the inner wall of the top end of the protective cover; a driving shaft and a driven shaft are symmetrically arranged on the two sides of the top of the support through bearing seats respectively, a first rolling ring and a second rolling ring are arranged at the front end and the rear end of a driving shaft body and the front end and the rear end of a driven shaft body respectively, U-shaped grooves are formed in the first rolling ring and the second rolling ring, and rotating wheels matched with the U-shaped grooves are arranged on the driving shaft and the driven shaft in a penetrating mode. A plurality of brush plates are arranged between the first rolling ring and the second rolling ring, bristles are arranged on the inner surfaces of brush plate bodies, and the bristles brush traditional Chinese medicinal materials through rotation; the cleaning equipment can avoid damage to skins of rhizome traditional Chinese medicinal materials caused by collision or extrusion, and meanwhile, continuous cleaning can be realized, so that the labor intensity of workers is reduced.