79results about How to "Uniform thrust" patented technology

The invention relates to a transition gear and a transition gear train, aiming at providing the simple, practical and high-efficiency gear and the gear train used as a force conversion system for a reciprocating piston type heat engine. The transition gear is an incomplete gear with deformed tooth profile, and the tooth profile is deformed so that the transition gear can be the one with close contact and repeatedly changed speed direction and speed degree to form a gear pair. The transition gear train at least comprises one transition gear. In the rack transition gear train, the transition rack is in close contact with the tooth profile of the transition gear to make equidirectional or reversed motion or to be stationary so that the rack moving in a reciprocating manner can transfer the motion to the transition gear without rigid compact and the pushing force of fuel gas can be redistributed to drive a crankshaft to rotate.

The invention relates to a permanent magnet linear voice coil motor with high thrust-weight ratio for a direct drive valve, comprising an inner stator, an outer stator, a magnetic steel component, a moving coil winding, a moving coil support and an end cover. The permanent magnet linear voice coil motor is characterized in that the magnetic steel component is two circular magnetic steel components which are bonded on the inner wall of the outer stator by a high-strength adhesive; the inner and the outer stators are both bonded on the end cover by adopting the high-strength adhesive; a spigot is processed on the end cover for realizing the mechanical positioning of the inner and the outer stators with the end cover; two annular air gaps are formed between the inner and the outer stators and the two annular magnetic steel components; the moving coil winding adopts two sets of windings, the numbers of turns of the two sets of windings are equivalent, and the winding directions are opposite, each set of winding is respectively arranged in the two annular air gaps constituted by the inner and the outer stators and the two annular magnetic steel components; the moving coil winding adopts a copper clad aluminum enameled wire, the wire winding method of the moving coil winding adopts the multi-layer flat winding; the moving coil support adopts a nylon rod with light weight, high strength and high temperature resistance; and a through hole is formed on the end cover.

The invention discloses an on-water waste cleaning ship. The on-water waste cleaning ship comprises a water pumping station for providing power for a ship body, wherein one end of the water pumping station is arranged on a bow through a pipeline and points to the bow, the other end of the water pumping station is arranged on an aft through the pipeline and points to the aft, a net cage for collecting floating wastes is arranged at the bow, and a bacterial solution cabin for storing microbial community is arranged in the ship body and is connected with the pipeline which is arranged on the aft of the water pumping station through the pipeline. The on-water waste cleaning ship can automatically collect on-water wastes, and can automatically release effective microbial community to water body so as to purify the water body.

The invention discloses an actuator for the shift transformation of an electrically-controlled pneumatic mechanical automatic gearbox of a heavy type commercial automobile for road transportation; a shift selection multiposition cylinder and a shift transformation multiposition cylinder are arranged outside a shell respectively; the shift selection multiposition cylinder is communicated with a shift selection electromagnetic valve; the inside of the shift selection multiposition cylinder is provided with a shift selection push rod; the other end of the shift selection push rod is connected with a shift selection push block of the shell; a shift selection block, a spring and a shift transformation gear are sleeved on a spline shaft; the shift selection block is extended into a groove at thelower end of the shift selection push block; the outer end of a rack type push rod is extended into the shift transformation multiposition cylinder; the shift transformation multiposition cylinder iscommunicated with a shift transformation electromagnetic valve; the output of parameters of the operating condition is sequentially connected with an electrical control unit and a drive circuit; andthe output of the drive circuit is connected with the shift selection electromagnetic valve and the shift transformation electromagnetic valve respectively. The actuator can carry out accurate positioning on shift selection stroke and shift transformation stroke, solves the problem of inaccurate stroke control in the process of shift transformation and improves the performance of the shift transformation and the reliability of the actuator.

The invention provides a movable pushing device for sliding launch of a large jacket. The movable pushing device is provided with a plurality of hydraulic jacks; the plurality of hydraulic jacks are respectively arranged on a plurality of slide rails; the front part and the rear part of each hydraulic jack are respectively provided with a fixing unit; and a pushing slide block is arranged in front of each fixing unit of the front part of each hydraulic jack. The pushing device can be flexibly and conveniently operated and can provide balance pushing forces; small space is occupied during construction, and the acting force can be accurately controlled, so that the occurrences of accidents is reduced and time and cost for installing offshore large modules are reduced; and on the premise of guaranteeing safety and reliability, the construction of an offshore oil platform and the construction progress of a project are accelerated and the project quality is improved.

The invention relates to a self-reaction force type reservoir landslide model test device and test method. The device comprises a model groove, wherein a slide bed with the upper surface being inclined is arranged at the bottom of the model groove; the rear end of the slide bed is higher than the front end; a slip mass is arranged along the inclined surface on the slide bed; a water storage space is formed above the slide bed in the model groove; a water feeding pipe and a water draining pipe which are communicated with the water storage space are respectively arranged on the side wall of the model groove; a support component and a counterforce component are arranged along the inclined surface of the slide bed on the rear end face of the model groove in the form of backward stretching; a loading component is arranged on the support component; the loading component is clamped between the rear end face of the slip mass and the rear end of the counterforce component; the counterforce component is capable of pushing the slip mass to downwards slide along the inclined surface on the slide bed. According to the invention, the water feeding pipe and the water draining pipe are utilized to adjust the water level in the water storage space so as to simulate the practical running of reservoir; the loading component is utilized to apply force to the slip mass so as to simulate the whole process of the landslide evolution; the structure is compact and the operation is convenient.

The invention discloses a refrigerator automatic door opening device and a control method of the refrigerator automatic door opening device and relates to the field of refrigerator manufacturing. Therefrigerator automatic door opening device comprises a device body and a box cover. An output shaft of a motor is provided with a worm, and the motor is connected with a speed reduction gear set through the worm. The speed reduction gear set is connected with a gear push rod. The gear push rod comprises a push rod and a gear bar. The two opposite surfaces of the gear bar are provided with a pulling block and a rack correspondingly. The two opposite side faces of the rack bar are provided with push rod guide rails correspondingly. The motor drives the gear push rod to slide along a guide slot in a reciprocating manner through the speed reduction gear set. The gear push rod is matched with a collision block installed on a refrigerator door. The motor drives the speed reduction gear set to drive the gear push rod to perform reciprocating movement, the push force of the push rod can be uniform, the speed is controllable, influences of inertia on door opening of a refrigerator are reduced,and use safety of users is guaranteed; and the push rod and the gear bar are connected in a threaded manner, the refrigerator automatic door opening device is easy to use and convenient to detach, andthe situation that door closing of the refrigerator is influenced by gear stuck-teeth caused by power failure is prevented.

The invention provides a simple-structured lens driving device, an auto-focusing camera, and a mobile terminal device with a camera capable of moving the lens support body towards the optical axis direction and correcting the shaking by the moving. A first coil 19 is winded on the outer periphery of the lens support body 5, the plane of the first coil is in the shape of four corners, viewed from the optical axis side. The second coils 16a -16d are disposed on the outer periphery at the interval of 90degrees. When the first coil forms the four-corner shape, viewed from the radial direction of the lens support body 5, the second coils are in the annular shape. A first magnet 17 is disposed oppositely to each side of the first coil 19, and the inner peripheral plane can be configured to have the same pole, at the same time, the first coil is opposite to the positions of the second coils 16a-16d. When the lens support body moves towards the optical shaft, the first coil 19 is powered on, when towards the X-Y direction, the second coils 16a-16b are provided with a certain quantity of current.

A catching device is prepared as containing high intensity net in containing cavity, setting multiple bullet at emitting opening of emitting air channel separately, using power providing mechanism to supply high pressure air suddenly under control to shoot said bullets out from said opening, bringing and expanding high intensity net out from said containing cavity through connection line for catching article to be caught.

The invention discloses a detonation type tear bomb. The detonation type tear bomb comprises a cartridge case, a primer, a propellant, a push disc, a projectile body, delay tubes, an explosion expanding explosive, OC stimulating powder, stimulating powder pushing discs, a guide rail, a blasting plug and a sealing identification pad, wherein the primer is riveted to the axis of the bottom end faceof the cartridge case, the push disc is used for pushing the projectile body to move, the projectile body comprises a lower projectile body and an upper projectile body, the delay tubes comprise a first-stage delay ignition tube and a second-stage delay ignition tube, the explosion expanding explosive is ignited and used for pushing the upper stimulating powder pushing disc and the lower stimulating powder pushing disc to move towards the two sides and are punched out of the blasting plug so as to achieve rapid spraying of the OC stimulating powder, and the sealing identification pad is used for sealing the cartridge case. According to the detonation type tear bomb, the design is ingenious, the situations that when the propellant is invalid or is subjected to neglected loading, the primerdirectly ignites the explosion expanding explosive so as to induce the bore premature, spraying is completed, the stimulating powder pushing discs are cut off, no flames are sprayed out, then accidental fire disasters or explosion accidents can be effectively avoided, the safety performance is relatively high, relatively large explosion sound is generated at the moment when the blasting plug is punched out, the deterrent performance is good, emission is carried out through an anti-riot gun, and the range is relatively long.

The invention belongs to the field of seal element mounting, and particularly discloses a combined seal ring mounting tool and a combined seal ring mounting method for an oil cylinder. The combined seal ring mounting tool comprises a clamping bracket, pushing mechanisms and a pushing compression ring; clamping grooves used for placing combined seal rings are formed in the clamping bracket; the pushing compression ring capable of sliding up and down along the axes of the clamping grooves is arranged in the clamping grooves; the pushing mechanisms used for pushing the pushing compression ring are arranged at one end of the pushing compression ring; the pushing mechanisms comprise fixed units and movable units; the fixed units are connected with the clamping bracket; the movable units can move relative to the fixed units and push the pushing compression ring; and the pushing compression ring pushes the combined seal rings in the clamping grooves, so that the mounting of the combined sealrings is achieved. According to the combined seal ring mounting tool, through combined use of the clamping bracket, the pushing mechanisms and the pushing compression ring, the mounting is rapid and accurate; and the mounting surfaces of the combined seal rings are not damaged in the mounting process. The structure is simple, the application field is wide, the operation is convenient, and mountingefficiency is high.

The invention discloses an injection mold facilitating rapid mold releasing. The mold comprises a base, fixed rods are symmetrically and fixedly connected to the base, the ends, away from the base, ofthe fixed rods are fixedly connected with mounting bases, hydraulic cylinders are mounted on the mounting bases, sliding bases are mounted on the output ends of the hydraulic cylinders, the sliding bases are in sliding connection to the fixed rods, the bottom sides of the sliding bases are fixedly connected with movable molds, a fixed mold base is fixedly connected to the base, two telescopic grooves are symmetrically formed in the fixed mold base, side plates are in sliding connection into the two telescopic grooves, and the two telescopic grooves are internally provided with elastic mechanisms. When push plates are moved upwards, an end face A slowly extrudes an end face B to enable the side plates to move towards the interiors of the telescopic grooves, springs are compressed, a gap isslowly reserved between a product in a mold cavity and the side wall of the mold cavity, during pushing, product resistance is small, and push plate mold releasing is rapier.

The application provides a desoldering device, system and method for a through-hole component, and relates to the technical field of circuit board welding. The device comprises a cylindrical shell; ahigh-pressure gas passage and a low-pressure gas passage are arranged in the shell; a high-pressure gas inlet of the high-pressure gas passage and a low-pressure gas inlet of the low-pressure gas passage are arranged at the top end of the shell; a high-pressure gas outlet of the high-pressure gas passage and a low-pressure gas outlet of the low-pressure gas passage are arranged at the bottom end of the shell; the low-pressure gas passage is arranged by surrounding the high-pressure gas passage; the high-pressure gas inlet communicates with a high-pressure gas outlet of a gas source device; andthe low-pressure gas inlet communicates with a low-pressure gas outlet of the gas source device. The device continuously and uniformly heats a pad of the through-hole component by low-pressure gas, and applies uniform thrust to the pad and through holes by the high-pressure gas to complete desoldering, thus avoiding mechanical damage, and improving the success rate and efficiency of desoldering.

The invention provides an automatic filling device for sausages. The automatic filling device comprises a material storing bin, a deflating chamber, feeding devices, a binding chamber and a discharging belt, wherein the material storing bin, the deflating chamber, the binding chamber and the discharging belt are sequentially arranged; the feeding devices are arranged on two sides of the deflating chamber; a discharging hopper, an air inlet and a feed opening are separately formed in the front end, the rear end and the upper end of the material storing bin; a feeding push plate is arranged in the material storing bin; the material storing bin is arranged on a support; a discharging nozzle is arranged at the front end of the discharging hopper. According to the automatic filling device provided by the invention, materials can be pushed into sausage casings by the material feeding push plate in the material storing bin; the push plate adopts pneumatic push, so the thrust is uniform, the speed is smooth and the possibility of squeezing out the sausage casings is low; the deflating chamber exhausts air in the sausage casings, and the inner parts of the sausage casings are enabled to be in vacuum state, so that storage time of the sausages is prolonged; the sausages are automatically bound by the binding machine, so the binding speed is high, lengths and thicknesses of the sausages of all sections are uniform, and products become more attractive.

The invention discloses a push plate demoulding mechanism, which includes an edge nail (1), a push plate (2), a fixation plate (3), a back stitch (4) and a mold core (5). The push plate (2) is in connection with the fixation plate (3) and the back stitch (4), and the edge nail (1) is in connection with the push plate (2) and the fixation plate (3). The push plate demoulding mechanism provided in the invention is suitable for rubber pieces that have a deep cylinder shape, a thin wall and does not allow an ejector pin mark, or is suitable for a small shell with multiple cavities (such as a button rubber piece). The push plate demoulding mechanism has the characteristics of uniform thrust, smooth demoulding, and difficult deformation of rubber pieces.

The invention discloses a preparation method of titanium dioxide for polyester chemical fiber extinction. The preparation method comprises the following steps: crushing titanium concentrate, mixing the crushed titanium concentrate with hydrochloric acid, carrying out acidolysis, filtering out residues, adding iron powder into the residual titanium oxychloride solution to reduce, crystallizing the solution by freezing, extracting to remove impurities, and hydrolyzing to obtain amorphous titanium dioxide; calcining and crushing to obtain titanium dioxide powder; ferric chloride crystals generated in the crystallization process, ferrous chloride generated in the extraction process and a ferric chloride solution are subjected to pyrohydrolysis, distillation and redissolution to obtain regenerated hydrochloric acid, and the regenerated hydrochloric acid is supplemented into the acidolysis process; compared with titanium dioxide prepared through a traditional process, titanium dioxide prepared through the preparation method has more excellent optical performance, covering power, decoloration power and weather resistance, hydrochloric acid can be recycled in the preparation process, three-waste emission of a factory is effectively reduced, and environmental protection is facilitated.