32results about How to "Improve mesh stability" patented technology

The invention provides a height-regulating mechanism of a vehicle seat. The height-regulating mechanism of the vehicle seat comprises a first bidirectional overrunning clutch and a second bidirectional overrunning clutch which use a pusher dog disc in common. The first bidirectional overrunning clutch comprises a first transmission star wheel, the outer side surface of the first transmission star wheel comprises three sections of first arc surfaces and three sections of second arc surfaces which are arranged circumferentially at intervals, and one first arc surface and one second arc surface are connected through a first arc wedge surface. Springs are respectively arranged between one first arc surface and a circular groove wheel of the pusher dog disc, and two ends of each spring is provided with a roller which is clamped between the first arc wedge surface and the circular groove wheel. The second bidirectional overrunning clutch comprises a second transmission star wheel, the outer side surface of the second transmission star wheel comprises three sections of third arc surfaces and three sections of planes which are arranged circumferentially at intervals, and a third arc surface is connected with the planes through a second arc wedge surface. A pin roller which is clamped between the second arc wedge surface and the inner side surface of the output end shell under the function of an elastic element is arranged between each pusher dog of the pusher dog disc. The height-regulating mechanism of the vehicle is good in self-locking performance, stable in working performance, and high in control precision.

The invention relates to a thorn wrench for preventing tooth breakup. A connecting part of a control member is provided with at least two elasticity positioning assemblies; at least two positioning units support against an abutting part of a thorn member simultaneously so that a ratchet of the thorn member can be engaged on a driving tooth of a driven body at high speed to avoid tooth breakup caused by stress concentration; at least two elasticity positioning assemblies arranged on the control member support against the thorn member, thereby overcoming oil stain prevention between the thorn member and the driven body and solving the tolerance problem of poor parallelism or verticality among a holding hole, a control slot and a thorn slot inside the body so that the upper part and the lower part of the thorn member are simultaneously engaged in the driven body, the function of high-speed engagement is achieved, the engagement stability is improved, and tooth breakup is reduced.

The invention discloses an environment-friendly plate crushing and sampling device which comprises a base, the base is mounted on a bottom plate, a positioning mechanism is arranged on the base and comprises positioning frames and positioning seats, the positioning frames are mounted on two sides of the middle of the base, and the positioning seats are mounted on two sides of the front end of the base. A driving roller is arranged between the tops of the positioning frames, a driving crushing gear is arranged at the front end of the driving roller, a driven roller is arranged at the top of the positioning seat, a driven crushing gear is arranged at the front end of the driven roller, crushing teeth are arranged on the peripheral surfaces of the driven crushing gear and the driving crushing gear, and a crushing cavity is formed between the driven crushing gear and the driving crushing gear. The environment-friendly printing resin plate material is crushed through the driving crushing gear and the driven crushing gear, so that the crushing efficiency of the environment-friendly printing resin plate material is greatly improved, and the meshing stability of a transmission gear and the driving crushing gear and the meshing stability of the transmission gear and the driven crushing gear are improved.

The invention relates to an automobile bevel gear automatic detecting and bouncing device. The device comprises a pedestal, a shaft support, a curved rod support and a gear support, wherein the shaftsupport, the curved rod support and the gear support are successively and fixedly arranged on the pedestal. An eccentric wheel is rotatably installed in the shaft support. A curved rod is rotatably installed on a top of the curved rod support, one end of the curved rod is slidably cooperated with an outer circumference of the eccentric wheel, and the other end of the curved rod is fixedly providedwith a detecting rod. One side of the shaft support is connected with a power unit providing rotational power to the eccentric wheel, and the other side of the shaft support is connected with a transmission unit providing rotational power for a gear to be detected on the gear support. A dial indicator for detecting a swinging limit of the curved rod and a reset spring for providing reset supportfor the curved rod are installed on the pedestal. The detecting device solves a problem that precision of manual detection of a gear tooth type is not high in the prior art, and realizes full mechanical transmission and automatic detection of full mechanical calibration at the same time. The device has advantages of low cost, a high detection speed, high detection precision and the like.

The invention relates to a low-speed high-power marine engine timing chain which comprises inner chain links and outer chain links. Each inner chain link is formed in the manner that inner link platesand sleeves are in interference fit and the sleeves and rollers are in clearance fit, each outer chain link is formed in the manner that outer chain plates and pin shafts are in interference fit, andthe inner chain links and the outer chain links are staggered and embedded with each other to form the whole chain through clearance fit of the pin shafts and the sleeves. In each inner chain link, one side of each chain plate is provided with an engaged circular bead, and wear and impact generated by the chain and a sprocket can be avoided; and each sleeve is designed to be of a tapered structure and adopts a honing process after assembling, and therefore the effect of radial shrinking generated by interference fit on the wear resistance of the chain is avoided. The chain adopts an octagonalriveting method, the chain length is detected on the basis of 10-20 links in the initial stage of chain assembly, whole chain connection is carried out in the manner that the chain lengths of reference chain segments are gradually increased from the two sides to the middle, and the using performance of the large-size chain at low-speed heavy-loaded conditions is improved.

The invention discloses a disposable hemostasis instrument, which comprises an electrode I (1) and an electrode II (2) arranged oppositely, a fixedly arranged inner tube (3), and an outer tube (4) sleeving the inner tube (3) and capable of moving relative to the inner tube (3), wherein the electrode I (1) and the electrode II (2) are arranged in the inner tube (3) and stretch out from the inner tube (3) and the outer tube (4); a conductor trace line (5) connected with the electrode I (1) and the electrode II (2) is arranged in the inner tube (3); a push device for enabling the outer tube (4) to move back and forth is arranged on the outer tube (4). The disposable hemostasis instrument has the advantages of innovative structure, reasonable design, flexibility and convenience in operation, thinner operating rod, and good hemostasis effect, and is applicable to deep surgical treatment of small passageways of all surgical departments especially minimally invasive microsurgery or neurological surgery.

The invention discloses a multi-stage gear transmission system for a stepping washing machine and the washing machine. The transmission system includes a base, an output shaft, a transmission mechanism for transmitting power to the output shaft, a clutch structure for realizing washing and dehydration, and a pivot fixing There are two pedals on the base to provide power. The output shaft can go up and down in the axial direction and cooperate with the clutch structure to realize the clutch of washing and dehydration. The clutch structure includes output bevel gears and one-way Bearings, the transmission mechanism is two groups, and each group corresponds to a foot pedal, including at least two sets of double gears for meshing transmission. One end of the foot pedal is a pedal, and the end of the other end is a section of arc-shaped rack. One of the double gears meshes with the arc-shaped rack for transmission, the other double gear meshes for transmission with the output bevel gear, and the two gears mesh for transmission to form a transmission composed of pedal arc-shaped racks, double gears and output bevel teeth. chain. The invention has the advantages of simple structure, uniform stress and high reliability.

The invention relates to a rhythmically moving rocking device. The rhythmically moving rocking device comprises a rhythm extraction module, a mounting body, a rocking driving module and a load connecting module; the sliding rail of the mounting body is provided with two ends, and the sliding platform of the mounting body is arranged on the sliding rail and slides between the two ends; the power mechanism of the rocking driving module is fixed with the sliding platform and controlled by the rhythm extraction module; the rolling mechanism of the rocking driving module comprises a rolling body and an input shaft; the circular rolling body is arranged on the sliding platform; the input shaft is fixed at the center of the rolling body; the power mechanism drives the input shaft to rotate and the rolling body rolls along the sliding rail; the connecting mechanism of the load connecting module is fixed on the rolling mechanism; the rocking part of a rocking mechanism is connected to a connection mechanism by use of the rotating shaft of the rocking mechanism, and a first axial positioner is used for limiting axial displacement to achieve the purpose of multiple motion synthesis.

This application relates to a self-supporting annular closed environmental protection prefabricated concrete wall panel, which includes an annular wall and a supporting steel structure arranged in the wall, the wall includes an inner layer of the wall and an outer layer of the wall, and the supporting steel structure It is arranged between the inner layer of the wall and the outer layer of the wall, the supporting steel structure is ring-shaped, and the supporting steel structure extends along the outer circumferential direction of the inner layer of the wall. The ring-shaped fixed steel structure is used to support the prefabricated concrete wall panels to improve the firmness of the concrete walls and make the concrete walls not easily broken when hoisted. Set the gear, the teeth on the first missing ring steel plate and the teeth on the second missing ring steel plate, so that the first missing ring steel plate and the second missing ring steel plate can rotate in the concrete wall, adjust the position of the gap, and facilitate opening for Install door slots.