177results about How to "Solve assembly difficulties" patented technology

The invention provides an eddy-current damping device utilizing the lever principle. The eddy-current damping device comprises a box body (1), a connecting screw hole (2), a fixed copper plate (3), a permanent magnet (4), a permanent magnet guide rail (5), a supporting rod (6), a movable copper plate (7), a mass block (8), a mass block guide rail (9), a spring (10), a connecting rod (11), a hinged screw hole (12) and a drive pin roll (13); when the structure vibrates, a TMD damper is firstly used to perform energy transfer, so that vibrations of the structure are reduced; then, the mass block drives the permanent magnet to generate motion reverse to that of the mass block through a lever system, so that relative motion velocity of the copper plate and the permanent magnet is increased, and non-contact type energy dissipation is performed through an eddy-current damp. The lever principle is utilized to effectively increase the relative motion velocity of the copper plate and the permanent magnet, so that energy-dissipating capacity of the damp is improved; the position of a central fulcrum of the connecting rod and length of a force arm of the lever are regulated, so that parameters of the TMD damp can be regulated, and therefore, applicable frequency range of the device is wider.

The invention provides a blade hoisting device and a blade hoisting system. The blade hoisting device comprises a bearing main body and a blade sucking device. The blade sucking device comprises a keeping component and a sucking connecting piece. The keeping component is connected with the bearing main body, the sucking connecting piece is arranged on the side, away from the bearing main body, ofthe keeping component, and the blade sucking device can suck blades to be assembled through sucking force produced by the sucking connecting piece. The impeller assembling process can be simplified, the assembling difficulty and cost can be reduced, and meanwhile impeller assembling efficiency is improved.

The embodiment of the invention discloses a display screen module, an electronic device and a making method of the display screen module. The display screen module comprises a support, a display screen, a cover plate and decorative rings. The support comprises a bottom wall and side walls extending from the bottom wall in a bent mode. The display screen comprises a top face and a bottom face, the bottom face of the display screen is arranged on the bottom wall, and the display screen and the side walls are located on the two reverse sides of the bottom respectively. The bottom face of the cover plate is combined with the top face of the display screen, and a clamping groove is formed in each side wall of the cover plate. The decorative rings comprise first combination parts and second combination parts connected with the first combination parts, the first combination parts are clamped into the clamping grooves, and the second combination parts are combined with the side walls. By reasonably designing the structures of the support, the display screen, a touch screen and the decorative rings, when the borders of the four sides of the electronic device are quite narrow, the display screen and the cover plate are assembled into the electronic device, the problem that when the borders of the electronic device are quite narrow, assembly is difficult is solved, and the screen-to-body ratio is increased because of the quite narrow borders are obtained.

The invention discloses a multi-condition composite support, which is used to assemble long compartment of vehicle, especially used to assemble the compartment of magnetic floating vehicle. The invention comprises upright positioning devices for supping beam supports, while said positioning devices are arranged along the ground latitude-longitude frame; and the positioning devices that arranged upwards are distanced 100mm from the surface of frame. The invention, via said multi-condition composite support, can solve the problems o present technique, which can not realize the assembly of floor, compartment, side walls and head on one support. And the invention can reduce the producing time and cost, with simple operation.

The invention provides a low-frequency longitudinal vibration transducer used for oil well sound wave communication and a manufacturing method thereof. The low-frequency longitudinal vibration transducer comprises a radiation head (1) and at least two crystal stack modules (14). Each crystal stack module is formed by piling piezoelectric crystal plates and metals alternately. Every two adjacent crystal stack modules (14) are connected end to end and generate longitudinal vibration low-frequency sound waves after being connected with the positive pole and the negative pole of a power source. The radiation head (1) is fixed to the front end of the longitudinal vibration transducer and used for outputting the low-frequency sound waves generated through the crystal stack modules (14). According to the low-frequency longitudinal vibration transducer, the piezoelectric crystal plates and the metals are piled alternately, and thus radiating can be conducted effectively; and meanwhile, through the modular design, the operation simplicity and convenience and assembling reliability are greatly improved, and the problems of difficult machining and assembling and liable fracture during application caused by simplex long and thin prestressed screws are effectively solved.

An apparatus and a method for assembling a disc type motor, and application method thereof, belong to motor technology field. The apparatus is composed of a fixed part and a feeding part, wherein the fixed part including a side board, a bottom board, bedplate compressing devices, a supporting board and a guide rail. The side board is connected with the bottom board on the square; the bedplate compressing devices locate on one end of the side board and on the other end connected with the bottom board; the stand is fixed with the side board and the bottom board by the bedplate compressing device; the guide rail is arranged between the side board and the supporting board. The feeding part includes a slide board, a rotor fixed component, a slide bar, a thrust bar and a screw rod, wherein the slide board locating on the top of the guide rail, the rotor fixed component being connected to the left side of the slide board; the rotor fixed component including a fixed parent matrix, a rotary body, a support frame and a rotor connection bar; the slide board being connected to the thrust plate through the slide bar, the thrust plate being equipped with a thrust bearing, and the screw rod being connected to the right side of the thrust bearing. The invention reduces excess manual operation, improves assembly efficiency, overcomes axial magnetic pull in the motor, and resolves the problem of being difficult to assembling the disc type motor.

The invention relates to a back light module and a manufacture method thereof. The manufacture method of the back light module comprises the following steps: providing a back plate which is provided with a first side edge, a second side edge, a third side edge and a fourth side edge, wherein the first side edge is opposite to the second side edge and the third side edge is opposite to the fourth side edge; performing injection molding on a first frame on the back plate; inserting a light source and an optical membrane into the first frame; and enclosing the first frame by the a second frame. The invention can effectively reduce the complexity of the back light module and the assembly working time, solve a matching problem which may occur in assembly and also ensure that the reprocessing of the back light module is more convenient.

The invention relates to an automatic assembly mechanism for a steel ball. The automatic assembly mechanism for the steel ball comprises a steel ball retainer, ball feeding mechanisms and ball pushing mechanisms. Notch grooves for containing the steel balls are arranged at four corners of the steel ball retainer. The steel ball retainer is placed in a sliding groove of a channel jig. A material pushing block is arranged at the back end of the steel ball retainer. The material pushing block is connected with a material pushing mechanism. The front end of the channel jig is in a butt joint with a ball channel jig, wherein a sliding groove which the steel ball retainer can slide in is arranged in the ball channel jig. Two ball channels are arranged at the left side and the right side of the sliding groove of the ball channel jig, wherein the four ball channels are respectively matched with the notch grooves of the steel ball retainer. The ball feeding mechanisms are respectively installed on the left portion and the right portion of the ball channel jig. Two ball feeding channels of the left ball feeding mechanism are communicated with the left ball channels of the ball channel jig, and the two ball feeding channels of the right ball feeding mechanism are communicated with the right ball channels of the ball channel jig. The ball pushing mechanisms are respectively arranged on the left side and the right side of the ball channel jig. Pushing rods of the ball pushing mechanisms stretch into the ball channels of the ball channel jig. The problems that the four rows of ball sliding rails are difficult to assemble and the ball loss can not be detected are resolved.

The invention relates to a gear transmission device of a GTF engine. The gear transmission device comprises a fan sleeve, an inverted-V-shaped inner gear ring, inverted-V-shaped planet gears, a planet carrier, an input spline sleeve, two sun gears, a transmission shaft and the like. The sun gears conduct input, the planet gears only conduct self-rotation, and the inverted-V-shaped inner gear ring conducts output. The inverted-V-shaped inner gear ring is connected with the transmission shaft, the transmission shaft is connected with the fan sleeve through a spline, and the fan sleeve serves as the output end to be connected with the fan so as to achieve the deceleration and torque increasing movement. The rotation speed ratio of the fan sleeve to the input spline sleeve is equal to the gear ratio of the sun gears to the inverted-V-shaped inner gear ring. According to the gear transmission device, the rotation speed of a fan rotor is reduced, the fan and a low-pressure turbine do not need to work at the same rotating speed, the fan works at the low rotating speed when pneumatic losses and noise are low, and therefore the bypass ratio of the engine is increased. Meanwhile, a low-pressure rotor can work at the high rotation speed with high efficiency, so that the high rotation speed of the low-pressure rotor is matched with the optimal rotation speed of a high-pressure rotor, and the engine has the beneficial effects of being low in noise, emission and oil consumption rate and the like.

The invention discloses a preparation method of a gold nucleus-quantum dot satellite structure assembly, belonging to the technical field of analytical chemistry. A high-yield assembly method of a gold nucleus-quantum dot satellite structure comprises the following steps of synthesis of gold nano particles with the particle size of 35nm, preparation of quantum dots with the particle size of 7nm, DNA-1 modification on the gold nano particles, complementary sequence DNA-2 modification on the quantum dots, assembling of the gold nucleus-quantum dot satellite structure, and purification of the gold nucleus-quantum dot satellite structure. By adopting the preparation method, the problems that quantum dot assembling is difficult and the yield is low are solved, and a way is paved for developing a fluorescence sensor based on quantum dot assembling.

The invention relates to a rubber band core rod processing device without stub bars. The device consists of a core rod, a lower rubber band, an upper rubber band, a spherical baffle block, a locating disk and a screw, wherein, a groove is arranged on one end of the core rod and is correspondingly assembled with and fixed to a boss of the upper rubber band, and an endpoint of a hose is located; and the locating disk is arranged on the other end of the core rod and is equipped with a locating hole, a locating groove and a hose locating interface, the other end of the hose and the locating disk are sequentially located according to the hose locating interface, the locating groove of the locating disk and a boss of the lower rubber band are assembled and fixed together correspondingly, and the locating hole on the locating disk is locked by the screw so that the locating disk is fixed on the core rod. Through the adoption of the rubber band core rod processing device, the stub bars on two ends of the original hose are not used any more; the operation procedure of cutting off the hose is not needed, thus saving precious cost of unit production time; and the outer diameter of two ends of the vulcanized finished hose can be controlled, thus greatly improving the dimensional precision and the qualification rate of the product and avoiding waste of raw materials.

The invention relates to a battery pack, which comprises a box body assembly, which is divided into a plurality of accommodating cavities by a plurality of fixed beams; a plurality of battery modules,which are arranged in the accommodating cavities respectively; a plurality of restraining parts, wherein a limiting part of each restraining part covers the battery module, a first mounting part anda second mounting part are connected to the two sides of the limiting part and are fixed to the fixed beams at the two sides respectively, and first mounting part and the second mounting part are respectively provided with a plurality of first mounting holes and a plurality of second mounting holes at intervals along the length direction of the fixed beam; a plurality of first fasteners, which penetrate through the corresponding first mounting holes and are fixed to the fixed beams corresponding to the first mounting part; and a plurality of second fasteners, which penetrate through the corresponding second mounting holes and are fixed to the fixed beams corresponding to the second mounting part. According to the battery pack, the matching error between the restraining parts and the fixedbeams can be allowed, and the assembly efficiency is improved.

The invention discloses a heat exchanger and a manufacturing method thereof. The heat exchanger comprises a plurality of flat tubes, a plurality of groups of fins, and at least two liquid collection cavities, wherein the flat tubes and the fins are sequentially arranged at intervals; the flat tubes and the fins are bonded through a first adhesive layer; a plurality of sequentially arranged slot holes are formed in the side walls of the liquid collection cavities; the two ends of the flat tubes are inserted into the corresponding slot holes; the end parts of the flat tubes and the slot holes are bonded and sealed through a second adhesive layer; or the liquid collection cavities are formed through stacking the ends of the flat tubes; and the ends of every two adjacent flat tubes are bonded and sealed through the second adhesive layer. According to the heat exchanger, a stable and firm bonding effect is achieved between the flat tubes and the fins, and between the flat tubes and the liquid collection cavities, the sealing strength between the flat tubes and the liquid collection cavities is fully guaranteed, and the heat exchange performance of the heat exchanger can be greatly improved.

The invention provides a connecting rod type central control caster control system. The system comprises a linkage device, a rotating body, a clamping set and an execution set; the linkage device comprises a hexagonal head, a cam, a hexagonal rod, a hexagonal sleeve, a mounting shaft, a left bushing, a right bushing and a bushing cover. The rotating body comprises a ball bearing, a ball bearing sleeve, a main shaft bearing, a main shaft bearing sleeve and a support; the clamping set is of a symmetric structure and comprises a fluted disc, a rotating block, telescopic blocks, a spring, a connecting rod, a rotating sleeve half gear, a baffle and a brake block. When the left telescopic block is located in a symmetric groove, a caster is enabled to be in a straight advancing state; when the left telescopic block and the right telescopic block are separated from the symmetric groove, the cater is in a universal state; when the left telescopic block is located in the symmetric groove and thebrake block is clamped in the fluted disc in the caster, the caster is in a braking state. On the premise that it is guaranteed that the straight advancing state, the universal sate and the brake orientation state are quickly switched, the system is compact in structure, easy to assemble and convenient to assemble and maintain.

This invention relates to a seal structure of turbine nozzles, in which the prolonged lines of lower welding groove faces between a nozzle chamber and a nozzle set meet at point E of Y central axes of a nozzle and the distance H between point E to the central point O of the nozzle is 1100mm, and the included angle between the lower groove face and Z1 direction line over point E is 40deg., prolonged lines of the upper groove faces between the chamber and the set meet at point F of the Y-oriented central axes of the nozzle and F is above E, the distance between them is 5mm and the included angle between the upper groove face and the Z2 line over point F is 40deg., which finishes two seams of a nozzle at one run with electronic beams.

The invention relates to a type of lubricating liquid, in particular to a type of lubricating liquid for tire assembly, wherein the lubricating liquid for tire assembly is suitable for the assembly of tubeless tire. The lubricating liquid is characterized by comprising the following components according to weight percentage: 79-80% of a mixture consisting of linoleic acid, linoleic acid, polyethylene glycol, glycerol and palmitoleic acid, 0.5-3% of fatty glyceride, 1-3% of sodium laurylsulfate, 3-8% of thickener, 0.5-1.5% of bactericide and the balance of deionized water. The lubricating liquid provided by the invention has the characteristics of high efficiency, environment friendliness, freeness from pollution, good lubricating effect and capability of effectively solving the problems of higher hardness and difficulty for assembly in the process of assembling a tubeless radial tire.

The invention discloses a tool for mounting an ejector-body. The tool comprises a handle, wherein a push rod seat which is movably inserted into an inner cavity of the ejector-body is arranged at one end of the handle; a first ejector block and a second ejector block which can move back and forth and are adaptive to the size of an inner hole on the side wall of the ejector-body are arranged on two sides of the push rod seat below the handle; a compression spring is arranged between the first ejector block and the second ejector block; a plug screw which jointly lock the first ejector block, the compression spring and the second ejector block is arranged on the push rod seat located on one side of the second ejector block; and push rods which are connected to the first ejector block and the second ejector block and perpendicularly protrude out of the top of the push rod seat for controlling the first ejector block and the second ejector block to move back and forth are arranged on the first ejector block and the second ejector block, respectively. The tool disclosed by the invention is simple in structure. By designing the push rod seat, which can be inserted into the inner cavity of the ejector-body, with stretchable ejector blocks, the ejector-body is quickly, simply and conveniently mounted by locating by virtue of the ejector blocks and the inner hole on the side of the ejector-body.

The invention relates to an automotive dust discharge valve. The automotive dust discharge valve comprises a valve core and a valve body, wherein the valve body is formed by a disk and a circle of bosses below the disk, the valve core is formed by a valve rod and a cambered surface structure connected with the valve rod, the valve rod is arranged at the center of the cambered surface structure, the valve rod is formed by an upper cylinder, a lower cylinder and a middle circular cone, the diameter of the upper cylinder is less than the diameter of the lower cylinder, and a circle of grooves are formed in the lower cylinder. The automotive dust discharge valve prevents defects generated when an air filter is arranged, and is prevented from protruding out of a housing of the air filter by forming a dust discharge valve interface in the lower end of the air filter, and therefore the problem that an interval between the dust discharge valve and each surrounding part is undersized or the dust discharge valve interferes with the surrounding parts is prevented.