31results about How to "Sensitive transmission" patented technology

A large-scale energy-accumulating floating type wave power-generating device relates to a power-generating device which comprises a floating body, a transmission device, a power generator and a floating body positioning device; the floating body is large; four sets of transmission devices and power-generating devices are respectively installed at four directions of the top surface of the floatingbody; the transmission device comprises a lower rotating wheel, an upper wire rope, a lower wire rope, hoisters, a transmission flywheel set, and a transmission gear; one end of the lower wire rope isconnected to the floating body and the other end of the lower wire rope is connected to a hoister A; one end of the upper wire rope is connected with a connecting wire rope and the other end of the upper wire rope is wound on a hoister B; the transmission wheels of the hoister A and the hoister B are mutually meshed; the transmission flywheel set consists of a transmission flywheel A and a transmission flywheel B which have different transmission directions; and the transmission flywheel A and the transmission flywheel B are meshed with a transmission gear which is installed on the input shaft of the power generator together. The invention can convert the up, down, left and right movement of wind wave into huge and sustained power, and the power-generating device has the advantages of very high power generation efficiency, simple structure, low cost, reliable performance, good development prospect, etc.

The transmission structure of a sewing machine provided by the present invention includes: a rotary hook mechanism for being installed under the needle plate; the rotary hook mechanism includes a third rotary hook gear, a rotary hook shaft, a gear cover and a rotary hook seat; The hook shaft penetrates into the third rotary hook gear and is fixedly connected with it, and the top of the rotary hook shaft is also driven to connect the rotary hook; the middle part of the gear cover is provided with an installation cavity, and the side wall of the gear cover is provided with an opening; The third rotary hook gear and the rotary hook shaft are installed in the installation cavity; the gear cover has an outer wall that fits with the inner wall of the rotary hook seat. The invention improves the structure of the gear cover, reduces the structure of the gear cover, and further reduces the size of the hook seat; reduces the size of the machine head, which can process specific products with smaller sizes; and does not need to replace the entire machine during maintenance. seat, only need to disassemble the first rotary hook mechanism separately, and its replacement and maintenance are more convenient.

The invention discloses a double-cone friction transmission self-adaptation automatic speed changing spindle assembly which comprises a transmission shaft, a slow-gear transmission mechanism and a mechanical intelligent self-adaptation speed changing assembly. Friction faces of drive friction discs and friction faces of driven friction discs of the mechanical intelligent self-adaptation gear changing assembly are in double-cone-face friction transmission. According to the double-cone friction transmission self-adaptation automatic speed changing spindle assembly, the friction discs are adopted to form a separating and combining structure, the beneficial effect of the sensitive response is achieved, and the axial size is small; meanwhile, the structure that the radial sections of the friction faces are trapezoidal annular protrusions are embedded in annular grooves is adopted, double cone faces are formed, the friction faces are disconnected, and therefore coaxiality of the drive friction discs and the driven friction discs is ensured easily, the friction faces are easily enlarged, and good transmission is ensured under the limited elasticity conditions; and sensitivity of separating and combining is easily ensured, transmission precision is improved, and the assembly is suitable for the field of electric vehicles.

The invention relates to a gear rack driving device for a movable bridge, which is suitable for a single-span or double-span type vertically pivoted movable bridge. A gear rack transmission mechanism is used for realizing the opening and closing of the movable bridge; one end of a single-side rack is articulated with the side face of a movable span of the bridge; a motor drives a driving gear through a reduction gearbox, and the driving gear drives a driven gear so as to drive the single-side rack to stretch, thereby driving the opening and closing of the bridge; a polishing wheel rotates passively so as to play a supporting role; the gear rack transmission mechanism forms a transmission case which is fixed with a bridge upright column through an outer shell by virtue of bolts, a transmission case formed by an inner shell is articulated with the outer shell and can rotate around a plane perpendicular to the bridge upright column, and the inner shell is provided with a rack guide device so as to enable the rack to be always perpendicular to the center line of a transmission gear; the guide device can ensure a perpendicular normal meshing state of a gear rack and can ensure the transmission accuracy; and the opening and closing of a single span can be completed by two gear rack driving devices together. The gear rack driving device has the advantages of simple and compact structure, light weight, high rigidity, sensitive transmission, easy manufacturing, low cost, high forward efficiency and reverse efficiency, convenient arrangement, and the like.

The invention discloses an electric motorcycle internal rotor motor biconical friction transmission self-adaptive automatic speed-changing drive assembly, which comprises an internal rotor driving motor, a box body and a transmission shaft, and also comprises a slow-gear transmission mechanism and a mechanically intellectualized self-adaptive speed changing assembly set on the transmission shaft, wherein a friction surface of a driving friction disc and a friction surface of a driven friction disc of the mechanically intellectualized self-adaptive speed changing assembly are transmitted by utilizing biconical surface friction; the friction discs are adopted to form a structure with separative combination, thus the drive assembly provided herein has the advantages of flexible response; the size in the axial direction is small; at the same time, a structure of mutually meshed circle-shaped projection and circle-shaped recess of the friction surfaces with radial cross sections shaped as stairs is adopted to form a biconical surface, thus the joint of the friction surfaces are dispersed; not only the driving friction disc and the driven friction disc are ensured to be located at the same shaft, but also the friction surfaces are increased; good transmission is ensured to be maintained under the condition of limited elastic force; the flexibility of joint and separation is improved; the transmission accuracy is enhanced; and the drive assembly provided herein is suitable for the electric motorcycle field.

The invention relates to a magnetostrictive following turning mechanism. The magnetostrictive following turning mechanism comprises a spherical base, a leftward-rightward magnetostrictive rod, an upward-downward magnetostrictive rod and a xenon lamp lens assembly; the leftward-rightward magnetostrictive rod and the upward-downward magnetostrictive rod are respectively arranged at the lower part and the upper part of a xenon lamp lens assembly frame; a spherical support is arranged at the lower part of a lamp bowl of the xenon lamp lens assembly; a spherical head is arranged at the lower part of the spherical support and can rotate in the spherical base; the leftward-rightward magnetostrictive rod is driven to be stretched or contracted through an electromagnetic module so as to drive the xenon lamp lens assembly to move leftwards and rightwards; and the upward-downward magnetostrictive rod is driven to be stretched or contracted through the electromagnetic module, so as to drive the xenon lamp lens assembly to move upwards and downwards. According to the magnetostrictive following turning mechanism, a lamp can be 'upwards and downwards' and 'leftwards and rightwards' adjusted based on the magnetostrictive principle according to the characteristic that the degree of freedom in the spherical contact movement direction is high; the magnetostrictive rod can be relatively sensitive, stable and reliable in transmission; and the following turning mechanism has a good application prospect in vehicles, and is worthy to being greatly popularized and applied.

The invention belongs to the technical field of printing equipment, and particularly relates to a paper feeding system of a printing press. The paper feeding system comprises a paper separation assembly, a first guide roller (4), a second guide roller (5), an ultrasonic double sheet detection component (10) and a conveying assembly (6). The paper separation assembly, the first guide roller (4), the second guide roller (5) and the conveying assembly (6) are arranged in the conveying direction of paper sheets (1) in sequence. The paper separation assembly enables the paper sheets (1) to be separated and conveys the paper sheets (1) to the first guide roller (4), the first guide roller (4) conveys the paper sheets (1) to the second guide roller (5), the second guide roller (5) conveys the paper sheets (1) to the conveying assembly (6), the conveying assembly (6) conveys the paper sheets (1) to the printing press (8), and the ultrasonic double sheet detection component (10) is arranged between the second guide roller (5) and the conveying assembly (6). The paper feeding system can effectively avoid the phenomenon that a plurality of paper sheets are conveyed together, and avoid paper sheet waste and printing faults.

The electric booster steering system for automobile includes rotating shaft comprising worm gear shaft and steering shaft connected together, worm gear, servo motor with output meshed with the worm gear, control module for the servo motor, and rotating shaft position sensor and automobile speed sensor for acquiring signal. It features a sliding sleeve capable of sliding on the rotating worm gear shaft and with outer ring notch, and the position sensor, which is torsion moment sensor with positioning shaft end capable of being connected with the outer ring notch. The rotating shaft may be local HF quenched for raised wear resistance and strength.

The invention discloses a concave-convex type friction drive side hanging type self-adaption automatic variable speed drive assembly of an electric motor car. The concave-convex type friction drive side hanging type self-adaption automatic variable speed drive assembly comprises a box body, a transmission shaft, a slow gear transmission mechanism and a mechanical intelligent self-adaption variable speed assembly. The box body is provided with a mounting portion for being arranged on the wheel hub side in a side hanging mode. A concave-convex embedded friction surface friction drive pair is adopted for the friction surface of a drive friction disc and the friction surface of a driven friction disc of the mechanical intelligent self-adaption variable speed assembly. A separation and combination structure is formed through the friction discs, the automatic variable speed drive assembly has the advantages of being sensitive in reaction and small in axial size; meanwhile, the concave-convex embedded structures of the radial sections of the friction surfaces are adopted, joint of the friction surfaces is guaranteed under the condition of limited radial size, guarantee of the coaxiality of the drive friction disc and the driven friction disc is facilitated, increase of the friction surfaces is facilitated as well, and it is guaranteed that good transmission is kept under the condition of limited elastic force; flexibility of separation and combination is further facilitated, transmission accuracy is improved, and the automatic variable speed drive assembly is applicable to the field of electric vehicles.