73results about How to "Large amount of elastic deformation" patented technology

The invention discloses an electric automobile brake energy regeneration transmission device with an elastic rubber belt energy accumulator and aims at providing an electric automobile brake energy regeneration transmission device which is high in energy conversion efficiency, large in energy density, light in weight and simple in structure. The electric automobile brake energy regeneration transmission device comprises the elastic rubber belt energy accumulator and a gear transmission case. The power connecting end of the elastic rubber belt energy accumulator is connected with the power connecting end of the gear transmission case, and two ends of a first shaft of the gear transmission case are respectively connected to the output end of a speed changer and the power input end of a main speed reducer. The electric automobile brake energy regeneration transmission device is used for converting kinetic energy in the electric automobile braking process into elastic potential energy to be stored in the elastic rubber belt energy accumulator, converts the elastic potential energy stored in the elastic rubber belt energy accumulator into electric automobile kinetic energy in the electric automobile starting process, achieves braking energy regeneration of an electric automobile and achieves the purposes of reducing electric quantity consumption of the electric automobile and increasing a driving range of the electric automobile.

The invention provides a polycyclic filter lens group capable of independently adjusting the rotation angle of each lens, which comprises a positioning frame body, a first pivoting frame body, a transfer frame body and a second pivoting frame body, wherein each of the frame bodies is a hollow round frame body; one end of the positioning frame body can be positioned to the front edge of a camera lens; a first lens is fixedly arranged at the place, corresponding to the hollow position, inside the first pivoting frame body, one end of the first pivoting frame body is mutually pivoted with the other end of the positioning frame body, and a first arc-shaped surface is arranged along the axial direction on the first pivoting frame body near the other end; a second arc-shaped surface is arranged along the axial direction on the transfer frame body near one end, so as to enable the transfer frame body and the first pivoting frame body to be mutually pivoted through the second arc-shaped surface and the first arc-shaped surface; and a second lens is fixedly arranged at the place, corresponding to the hollow position, inside the second pivoting frame body, and one end of the second pivoting frame body can be mutually pivoted with the other end of the transfer frame body.

This invention discloses a longitudinal towing device and a bogie with the same. The longitudinal towing device is used for connecting a swing bolster and a framework of the bogie, and comprises a towing pull rod and two pull rod seats, wherein the two pull rod seats can be respectively fixed with the swing bolster and the framework, the towing pull rod is connected with the two pull rod seats through a spherical hinge assembly, and the spherical hinge assembly comprises a spherical hinge axle and a spherical hinge sleeve; the spherical hinge axle is articulated and matched with the spherical hinge sleeve through a spherical curved surface. Because the longitudinal towing device comprises spherical hinge assemblies, and the spherical hinge axle and the spherical hinge sleeve can be relatively rotated, on one hand, the longitudinal towing device can ensure to transmit larger longitudinal towing force, and on the other hand, the longitudinal towing device can ensure that the additional lateral stiffness of the bogie is smaller, enables the bogie with the longitudinal towing device to keep larger transverse natural bow while transmitting longitudinal towing force, and ensures the railway vehicle to have better dynamics performance.

The invention relates to a bismaleimide structural adhesive film with a high temperature resistance level as well as a preparation method and application thereof, and relates to a structural adhesivefilm. The structural adhesive film solves the problem that the conventional bismaleimide structural adhesive film is low in basic intensity or low in temperature resistance level. The structural adhesive film is prepared from a bismaleimide monomer composition, an allyl phenoxyl compound monomer modifier, a high-polymer material flexibilizer, an inorganic nanometer particle thixotropic agent and acarrier. The method comprises the following steps: melting phthalazinone structural thermoplastic resin into a modifier in a hot melting manner, then performing hot melting blending on the bismaleimide monomer composition, active end group liquid rubber and the resin, feeding the thixotropic agent into a resin system, and uniformly mixing, so as to form a sizing material, and compounding the sizing material with the carrier, so as to obtain the structural adhesive film. The normal temperature shear strength of the adhesive film can reach 20.2 MPa, 316 DEG C shear strength can still reach 10.8MPa, and the honeycomb cylinder peel strength reaches 95.0 N.m/m. The adhesive film is applied to cementing of aerospace refractory metal or composite material structural pieces.

The invention provides an acoustic wave transducer. The transducer comprises a notched shell, a receiving transducer module, a transmitting transducer and a bag, wherein the notched shell is provided with slotted holes for improving the acoustical insulation effect of the notched shell; the receiving transducer module is sleeved in the notched shell and comprises more than two receiving transducers sequentially connected together in series through screw threads; the transmitting transducer of which one end is fixedly connected to the interior of the notched shell is sleeved in the notched shell and arranged on one side of the receiving transducer module; the bag is a flexible part, and is sleeved in the notched shell and wrapped around the receiving transducer module; and oil is filled in the bag. In the transducer, as the receiving transducer module comprises more than two receiving transducers sequentially connected in series through the screw threads, each transducer can be assembled singly and conveniently; the deformation of each transducer is not accumulated during the deformation of the notched shell, so the overall deformation of the receiving transducer module is reduced; in addition, only one end of the transmitting transducer is fixedly connected with the notched shell, so the influence of the deformation of the notched shell on the transmitting transducer can be effectively avoided.

The invention discloses a bulb structure and steering system of a steering pull rod. The bulb structure comprises a bulb pin (1), a joint part (4), a base (5) and an elastic supporting base (6), wherein the a limit accommodating cavity for accommodating a bulb is arranged in the joint part, and a pin rod stretches out towards one side of the joint part from the bulb; the base is mounted on the bottom wall of the other side opposite to the side from which the pin rod stretches out, of the joint part; the elastic supporting base is positioned in the limit accommodating cavity and mounted on the base so as to support the bulb, the elastic supporting base is an integrated annular elastic piece, and the annular elastic piece comprises an inner ring part (61) and outer ring parts (62), wherein the bottom end of the inner ring part and the bottom ends of the outer ring parts are respectively arranged on the base in a supporting manner, the bottom end of the bulb is inserted in the inner ring part and is elastically propped against the inner wall of the inner ring part. The bulb structure disclosed by the invention has the advantages that the components are few, the assembled structure is simple, the elastic supporting base and the base are unlikely to deform and lose efficacy, and the large-scale manufacturing, maintenance and replacement are convenient to perform.

The invention is a plastic ball valve, comprising end cover, valve body, valve ball, sealing member, etc, and characterized by adopting lip seal ring and double valve rod structure. And it has advantages of simple structure, convenient to make, good sealing effect, small turn-on and turn-off moment, low abrasion of valve ball and sealing member, long service life, low failure rate, etc.

The invention relates to a refrigeration device comprising the following members: a box body with an inner container used for limiting a storage space; a door body pivoted to the box body so as to open and/or close at least partial the storage space; a defrost mechanism arranged on the inner side of the door body and used for scrapping at least partial the inner container in a door body opening and/or closing process, thus removing at least partial the frost on at least partial the inner container. The refrigeration device can carry out defrost operations in each door body opening and closing process, thus scrapping off the frost on the inner container before the frost is solid, and solving the technical problems that the solid frost on the inner container of the refrigeration device cannot be easily removed; in addition, the complex defrost process can be resolved into normal door opening and closing processes, so users need no extra defrost operation; the refrigeration device is simple in application and low in cost.

The invention discloses a mechanical double-acting disc brake. The mechanical double-acting disc brake comprises a disc plate and a calliper, wherein the calliper comprises a shell, a support and a connection component; a drive arm and a drive plate are arranged on the shell; a drive component used for converting the rotary motion of the drive arm to the axial motion of the drive plate is connected between the drive arm and the drive plate; a first friction sheet is installed on the end surface of the drive plate; a second friction sheet is installed on the shell; the disc plate is arranged between the first friction sheet and the second friction sheet; the connection components comprises a connection seat which is movably connected to the shell and capable of axially moving relative to the drive plate, an annular bulge edge is arranged at one end close to the drive component, of the drive plate; and an elastic gasket is arranged between the connection base and the annular bulge edge. According to the mechanical double-acting disc brake disclosed by the invention, the two friction sheets can move towards the disc plate simultaneously, and the deformation of the disc plate is not required during braking, thus obstruction on the normal running of a vehicle due to the deformation of the disc plate can be avoided.

A yoke for a universal joint, having provided in a coupling hole (14a): a press-fit hole section (21) for press-fitting an end section of a shaft, provided between a center section and another end section in the axial direction; and a non-press-fit hole section (22) having a larger diameter than the press-fit hole section (21) and not having the shaft end section press-fitted therein, provided at one end section in the axial direction.

The invention discloses an anti-twist watertight device for an underwater electric connector and belongs to the field of marine geophysical prospecting. The device comprises a metal connector, an adjusting tube, an outer metal housing, a first conical part, a first rubber pad, an isolating ring, a second rubber pad, a second conical part, a conical cover, a steel wire sheath mounting plate, a rubber ring, a transition ring, a concave ring, a flared steel wire mesh cover, a rubber jacket, a locking nut, a hollow wedged column, strength bearing aramid fibers and an inner wedged positioning column. Peripheral equipment includes cables. The isolating ring is arranged between the rubber pads to enable the rubber pads to form a serial connection structure, sealing similar to a labyrinth is formed, and sealing performance at the rubber pads is improved. Further, the sealing connector and the cables are high in connection strength and anti-twist performance.

The invention discloses a tire type puncture-proof eccentric packing box. The tire type puncture-proof eccentric packing box is formed by taking a packing cavity (1) as a main body; the outer wall of the packing cavity is provided with an aerating nozzle (18); a tire frame (6), a tire (8) and a packing (20) are arranged inside the cavity; an enclosed space is formed between the tire (8) and the inner wall of the packing cavity (1); the lower end of a thin pipe is connected integrally with a middle disk (4) of an eccentricity finding flange; a gland (10) and a pressure cap (12) are arranged above the tire (8) and the packing (20); and the pressure cap (12) and a set of puncture-proof packing box (16) are combined to construct a set of complete tire type puncture-proof eccentric packing box. When an inflation sleeve is used for inflating air into the cavity (19) and the enclosed space of the tire (8) through the aerating nozzle (18), the tire (8) wall plumps up towards the center through a vent hole (7) in the tire frame (6) along with the increase of the air amount, centering transverse pressure is applied to the packing (20), and the packing (20) is driven to clamp a polished rod tightly, so that the aim of sealing is fulfilled.

The invention discloses a plate overlapping straightening process for waved surfaces on two sides of an ultra-thin middle-thick plate. An I-shaped lining plate is overlapped on the plate to be straightened so as to be straightened together with the plate to be straightened. Tension is generated in the middle area in the width direction of the steel plate in the straightening process. The elastic deformation amount of a middle thick layer of the middle area in the width direction of the steel plate is increased. The waved surfaces on the two sides of the ultra-thin middle-thick plate are effectively straightened. The plate overlapping straightening process includes the steps that the lining plate is manufactured, and the I-shaped liming plate is aligned with the plate to be straightened; a first time of straightening is carried out, and the plastic deformation amount is 80%; a second time of straightening is carried out, and the plastic deformation amount is 80%. According to the plate overlapping straightening process, the -shaped lining plate is overlapped on the plate to be straightened so as to be straightened together with the plate to be straightened, tension is generated in the middle area in the width direction of the steel plate in the straightening process, and the elastic deformation amount of a middle thick layer of the middle area in the width direction of the steel plate is increased. Finally, the waved surfaces on the two sides of the ultra-thin middle-thick plate are effectively straightened.

The invention discloses an elastic piston and a high pressure pumping system and method. The elastic piston comprises a piston body. A front side inclined wall and a rear side inclined wall are formedon the front side and the rear side of the circumferential side wall of the piston body correspondingly, a concave area is formed between the circumferential side wall of the piston body accordingly,a first included angle is formed between the front side inclined wall and the rear side inclined wall, a second inclined angle is formed between the front side inclined wall and the center axis of the piston body, and the largest diameter of the front side inclined wall is larger than the diameter of a piston cavity wall. According to the elastic piston, the end of the front side inclined wall and the piston cavity wall form elastic abutting contact, and therefore effective seal is formed on the front side of the piston. Meanwhile, by arranging the concave area, the front side inclined wall has the larger radial elastic deformation amount, and the end of the front side inclined wall and the piston cavity wall form tight fit contact. Compared with a traditional cylindrical piston, the requirements for piston machining precision are lowered by means of the design of the front side inclined wall and the rear side inclined wall of the piston.