38results about How to "Guaranteed assembly reliability" patented technology

The invention relates to a light-concentrating type LED dual-light lens die set. The light-concentrating type LED dual-light lens die set comprises a radiator, a light source assembly mounted on the radiator, a light barrier assembly and a lens assembly, wherein the light barrier assembly and the lens assembly are mounted at the front part of the radiator; a first circuit board of a near LED die set of the light source assembly is mounted on a first mounting surface of the radiator, and a reflecting mirror with a free-form surface is mounted at the upper part of the radiator; rays emitted by a neat LED light source are reflected to a focal spot O in the lens by the reflecting mirror to be collected, and then ejected to the lens through a light barrier so as to form a near dead line light type; a second circuit board of a distance LED die set is mounted on a second mounting surface of the radiator, and a light condenser is mounted at the front part of the radiator through a light condenser bracket; and rays emitted by the distance LED light source are totally reflected to the focal spot O in the lens through the light condenser to be collected, and then ejected to the lens so as to form a distance light type. The light-concentrating type LED dual-light lens die set disclosed by the invention is compact in structure, can improve the precision of the distance light type and the near light type, and well solves the problems that dead lines spray color light, the distance light and the near light are out of alignment in focusing, and the distance light is uneven.

The invention discloses an oil injector sealing gasket of an internal combustion engine. One to three ring-shaped bulges are formed on the lower surface of the oil injector sealing gasket; the lower surface of the oil injector sealing gasket is in contact with a gas cylinder cover; one to three ring-shaped grooves are formed in the plane of the gas cylinder cover, and mutually matched with the ring-shaped bulges on the oil injector sealing gasket; the upper surface of the oil injector sealing gasket is arch-shaped and in contact with an oil injector. The oil injector sealing gasket has the advantages of being simple in structure and convenient to machine; the sealing effect and the reliability are excellent; the oil injector has a positioning function, so that the assembly and work reliability can be guaranteed.

The present invention proposes a suitcase assembly device for assembling the suitcase on the fuselage frame, comprising a fuselage connecting unit, a suitcase connecting unit and a suitcase positioning unit, the fuselage connecting unit and the suitcase connecting unit adopt a certain The connection unit with axial freedom, the trunk positioning unit has a locking mechanism, which allows the connection unit to adjust the positioning position in the unlocked state, and fixes the connection unit in the locked state, so that the trunk assembly device can realize the rapid assembly of the trunk. Positioning and assembly solves the problems of cumbersome luggage installation process, difficult positioning adjustment and inconvenient maintenance in the later period.

The invention discloses an aircraft engine link mechanism nut alignment and tightening device and an aircraft engine link mechanism nut alignment and tightening method, and belongs to the aircraft engine internal assembly technology field. The aircraft engine link mechanism nut alignment and tightening device comprises a universal joint driving type tightening system, a nut alignment and positioning system and a device tool prepositioning system, wherein the device tool prepositioning system is installed on a housing of a rotor of an aircraft engine, the nut alignment and positioning system isinstalled on the upper portion of the device tool prepositioning system, and the universal joint driving type tightening system is installed in the nut alignment and positioning system. Positioning of a tightening sleeve is completed through the nut alignment and positioning system, and tightening work for nuts is completed by driving the tightening sleeve through a tightening motor. The aircraftengine link mechanism nut alignment and tightening device adopts a numerical control operation mode, simplifies the operation process, reduces manual operation task intensity, has the characteristicsof being high in automatic degree, high in motion precision and good in tightening state, and improves internal nut tightening efficiency of the aircraft engine.

The invention discloses a combined butt-joint connecting device for a vehicle-mounted baggage carrier. The combined butt-joint connecting device for the vehicle-mounted baggage carrier comprises a baggage carrier bearing beam (2), an end cover decoration plate (3) and an end cover base (6); the bottom of the end cover decoration plate is symmetrically and inwards narrowed to form a predeformationstructure, and the end cover base can be in interference clamping connection with the narrowed end cover decoration plate to generate first-time self-adaptive correction on the external profile of theend cover decoration plate; a bearing beam installing hole (10) is formed in the baggage carrier bearing beam, a cylindrical pin (11) is arranged in the end cover base, and the cylindrical pin and the center of the bearing beam installing hole are installed in a staggered mode; and the end cover decoration plate is provided with a plurality of wedge-shaped ribs (13), the inner wall of the baggagecarrier bearing beam can extrude the wedge-shaped ribs (13) and be in interference assembling with the end cover decoration plate, and the baggage carrier bearing beam generates second-time self-adaptive correction on the profiles of the wedge-shaped ribs. According to the combined butt-joint connecting device for the vehicle-mounted baggage carrier, high-precision butt-joint connecting of the baggage carrier bearing beam and an end cover can be achieved, and the baggage carrier assembling technology difficulty is reduced.

The invention discloses a screwing and force limiting device and a using method thereof. The device comprises a locking device and a spanner assembly. The spanner assembly is installed on the locking device. The locking device comprises a locking sleeve which surrounds the spanner assembly. The upper end of the locking sleeve is fixedly connected with a locking disc. A first through hole is formed in the locking disc and used for being in plug connection with the spanner assembly. The spanner assembly comprises a transmission arm. The lower portion of one end of the transmission arm is connected with one end of the locking disc. A positioning hole is formed in the upper portion of one end of the transmission arm. A torque spanner is externally connected to the interior of the positioning hole. The transmission arm can rotate relative to the locking disc. The other end of the transmission arm is fixedly connected with a first spanner arm. The first spanner arm penetrates the first through hole. A pull rod is arranged in an inner cavity of the first spanner arm. The lower end of the pull rod is hinged to one end of a second spanner arm. The other end of the second spanner arm is fixedly connected with a spanner head. The purpose of assembling a rotor of a special structure is achieved, the cost for redesigning and manufacturing a tool is saved, and the screwing and force limiting device can be applied to assembling similar rotors and has the wide market application prospect.

The invention relates to a TM01 medium resonator assembling device. A transitional metal band is introduced, so that the reliability of assembly of a TM01 medium resonator and a metal cavity is guaranteed. The TM01 medium resonator assembling device is characterized in that the TM01 medium resonator is welded on the transitional metal band in a single-end manner; the transitional metal band on which the TM01 medium resonator welded in a single-end manner is arranged on a cavity cover board by a thread on the transitional metal band; and therefore, a TM01 medium filter can be stably and reliably assembled. The TM01 medium resonator assembling device is suitable for any TM01 medium resonator and is particularly suitable for products which have relatively high requirement on the first pass yield of the TM01 medium filter, are relatively complicated in design and need massive overhaul and maintenance in the later stage.

The invention provides an assembly method of a low-noise water supply pump, including the precision decomposition process design of the shaft system; the rough positioning assembly of the motor bracket and the support; the coaxiality measurement of the motor bracket and the support hole; Hole coaxiality repair; transmission shaft, bearing and bearing support seat assembly; transmission shaft, bearing forming shaft no-load accuracy test; cylinder, piston, transmission shaft assembly and accuracy test after assembly; shaft noise detection without motor and debugging; combined assembly of motor and motor pad; combined assembly of coupling and coupling spacer. The assembly method provided by the present invention solves the problem that the motor vibration reduction assembly control of the low-noise water supply pump in the space is not quantified, and resonance is easily generated, and the coaxiality of the shaft assembly is not high, which may easily lead to shaft rotation friction noise, noise and performance measurement process. Unrefined control leads to problems such as excessive noise, which improves the performance and life of the water supply pump and ensures long-term operation safety.

The invention relates to the technical field of braking, and provides a method for installing a maintenance-free wear alarm on a brake, comprising the following steps: opening a first hole and a second hole on the brake; inserting the maintenance-free wear alarm into the In the first hole, until the first hole clamps the maintenance-free wear alarm and prevents the maintenance-free wear alarm from continuing to enter the first hole; swing the maintenance-free wear alarm so that the mounting protrusion on the housing The table is snapped into the second hole to prevent the maintenance-free wear alarm from withdrawing from the first hole; wherein, the distance between the first hole and the second hole on the same horizontal plane is the same as that of the housing The distance from the position of the opening of the first hole to the position of the installation boss is equal. The invention provides two holes on the brake, and only needs two steps to install the maintenance-free wear alarm on the brake, which simplifies installation, improves installation efficiency, and ensures assembly reliability.