62results about How to "Meet the requirements for installation and use" patented technology

The invention relates to an overall composite mechanical spiral type bulging device for a car drive axle. The bulging device comprises a bulging inner die, a bulging outer die and two thrust hydraulic cylinders, wherein the bulging inner die comprises an upper die block and a lower die block, and an auxiliary pressure device is arranged between the upper die block and the lower die block. Two ends of the upper die block and the lower die block are respectively hinged with the piston rods of the two thrust hydraulic cylinders through link mechanisms. The link mechanisms comprise hinge mounts, and the hinge mounts are hinged with the upper die block and the lower die block through connecting rods. A spin screw mechanism is arranged between the two hinge mounts and comprises a screw, one end of the screw is installed on one hinge mount, and the other end of the screw is installed a spiral base arranged on the other hinge mount. The screw and the spiral base mutually rotate under the action of force, and the length of the screw is automatically regulated. The bulging outer die comprises a support mechanism positioned on the transitional surface of an axle shell pipa bag. The piston rods of the two thrust hydraulic cylinders are oppositely arranged, and a quick-detached connecting structure is arranged on the piston rod of one thrust hydraulic cylinder.

The invention relates to a loop gravity-assisted heat pipe heat transfer device which mainly comprises an evaporator, a condenser, a steam pipe and a liquid pipe, wherein the evaporator is pipe-shaped, the evaporator is sealed and is filled with a working medium, an inlet of the steam pipe slightly extends into the top of the evaporator, and an outlet of the liquid pipe passes through the top of the evaporator and extends to the bottom of the evaporator; and an outlet of the steam pipe is communicated with the upper part of the condenser, and an inlet of the liquid pipe is communicated with the lower part of the condenser. The loop gravity-assisted heat pipe heat transfer device disclosed by the invention has excellent heat transfer performance and application expandability, can avoid installation difficulty, meets heat transfer requirements of vacuum tube heat collectors with any sizes and has the advantages of reliable structure and manufacturing process and lower cost.

The invention discloses a low impact unlocking device based on a shape memory alloy spring and mainly applied to spacecraft. A main structure of the low impact unlocking device can be mounted an effective load to be unlocked and can be used with bolts to connect a spacecraft body with the load. When on-orbit unlocking is needed, the mechanism can be unlocked by heating the shape memory alloy spring of the low impact unlocking device, restraint between the bolts and nuts is unlocked by moving the mechanism, the bolts are separated from the nuts under the action of force, and accordingly two parts are unlocked. The low impact unlocking device has the advantages that such problems that an initiating explosive device widely on spacecraft models is high in impact and nonuniform in launching state and test state are solved; the device is reusable, lightweight, small and the like; and reliability, applicability and economy of the device are guaranteed.

The invention discloses a high-damping vibration isolator used for a satellite sensitive load. The high-damping vibration isolator used for the satellite sensitive load comprises an upper installation unit, a lower installation unit, a main vibration isolation unit and a high-damping unit, wherein the upper installation unit is connected with the satellite sensitive load; the lower installation unit is connected with a satellite body; the upper installation unit, the lower installation unit and the main vibration isolation unit integrally form a unified main vibration isolation structure; the main vibration isolation structure and the high-damping unit are connected in parallel. The high-damping vibration isolator used for the satellite sensitive load disclosed by the invention has the following technical characteristics: I, the installation of satellite sensitive load equipment is ensured; II, vibration transferred to the sensitive load by a satellite platform is isolated to ensure the normal operation and the working quality of the sensitive load; III, the vibration disturbance of the sensitive load is restrained; IV, an impact response brought by deblocking of a satellite initiating explosive device is rapidly damped. While the sensitive load is supported, the goal that the sensitive load can normally work in orbit reliably, safely and effectively is achieved.

The invention discloses a novel vibration isolator used for a satellite sensitive load. The novel vibration isolator used for the satellite sensitive load comprises an upper installation unit, a lower installation unit and a main vibration isolation unit, wherein the upper installation unit, the lower installation unit and the main vibration isolation unit are of an integral structure. The novel vibration isolator used for the satellite sensitive load provided by the invention has the following technical characteristics: I, the installation of satellite sensitive load equipment is ensured; II, vibration transferred to the effective load by a satellite platform is isolated to ensure the normal operation of the effective load; III, the vibration disturbance of the effective load is isolated. While the sensitive load is supported, the goal that the sensitive load can normally work in orbit reliably, safely and effectively is achieved.

The invention relates to an overall composite mechanical push rod type or inner high-pressure bulging device for a car drive axle. The bulging device comprises a bulging inner die, a bulging outer die and two thrust hydraulic cylinders, wherein the bulging inner die comprises an upper die block and a lower die block, and a multi-stage auxiliary hydraulic cylinder is arranged between the upper die block and the lower die block. Two ends of the upper die block and the lower die block are respectively connected with the two thrust hydraulic cylinders through link mechanisms. The multi-stage auxiliary hydraulic cylinder comprises an auxiliary piston rod and at least two stages of auxiliary hydraulic cylinder bodies which are stacked and sheathed together and adopt a telescopic structure, and the auxiliary piston rod is sheathed onto the innermost layer of auxiliary hydraulic cylinder body. Oil ports connected with a hydraulic source are arranged on a rodless chamber, a piston rod chamber and a grading oil chamber of the multi-stage auxiliary hydraulic cylinder. The bulging outer die comprises a support mechanism positioned on a transitional surface between the bulging deforming area and the un-deforming area of an axle shell pipa bag. The piston rods of the two thrust hydraulic cylinders are oppositely arranged, and the axes of the two piston rods are positioned on the same one straight line. Moreover, a quick-detached connecting structure is arranged on the piston rod of one thrust hydraulic cylinder.

The invention discloses a straight acting device for a spacecraft based on an SMA (Shape Memory Alloy) spring and a use method thereof. The straight acting device for the spacecraft based on the SMA spring comprises a piston jacking rod, an upper end cover, a limiting spring, a sleeve, the SMA spring, a heater resistance wire, an electric heater, a soft outgoing line and an electric connector, wherein the sleeve is a piston cavity; a piston acting rod, the limiting spring, the SMA spring, the electric heater and the soft outgoing line are arranged in the sleeve from top to bottom; when the straight acting device does not work, the piston jacking rod is restrained in an initial position by the limiting spring, and the limiting spring and the SMA spring are balanced; when the straight acting device acts in orbit, any one of two heating wires in the heater is electrified through instruction, the SMA spring is heated, after the temperature reaches a phase-transition temperature, memory alloy is subjected to phase-transition, and the heat expanding type SMA spring stretches out and drives the piston jacking rod. The straight acting device for the spacecraft based on the SMA spring utilizes the advantage of easiness in controlling the action of the SMA spring and ensures the high reliability of a spacecraft mechanism.

The invention provides a self-elevating multifunctional climbing derrick mast and belongs to the field of construction devices. The invention aims to provide a self-elevating multifunctional climbing derrick mast that may climb by means of the own structure thereof without an external auxiliary device. According to the self-elevating multifunctional climbing derrick, a mast derrick mast supporting beam is fixed to one end of the derrick mast. A derrick mast jacket sleeves the derrick mast. The other end of the derrick mast is fixed to one side of a jacket hoisting frame. The other side of the jacket hoisting frame is fixed to a rotating beam that passes through a rolling bearing to be inserted in a slot of a triangular bracket. The invention relates to a self-elevating multifunctional climbing derrick mast installation device that is capable of climbing without external power and multifunctional, and is used for setting up a latticeguyed high steel tower mast with excellent usability; and the problem that a large-tonnage crane, a tower crane, a helicopter and the like for modernized means may not be installed easily on existing domestic and overseas high guyed town masts is solved.

A method for fastening a mortise and tenon joint wood frame by using a steel hoop is characterized in that the method includes the following steps of (I) steel hoop (1) processing, wherein the steel hoop (1) is processed according to the size of a wooden column (2) and the size of a wooden beam (3), that is, the height of the steel hoop (1) is the same as the height of the wooden beam (3), the steel hoop (1) is arranged on the wooden column (2) in a sleeved mode, fixing arms extend from the two ends of the opening of the steel hoop (1) and are fixed to the position of the wooden beam (3) at the distance ranging from 100 mm to 150 mm; (II) steel hoop (1) installation, wherein the steel hoop (1) is arranged on a mortise and tenon joint (201) of the wooden column (2) in a sleeved mode, and the steel hoop (1) is fixed to the wooden beam (3) through a bolt (4). According to method for fastening the mortise and tenon joint wood frame by using the steel hoop, the steel hoop is arranged on the mortise and tenon joint position, so that the rigidity and bearing capacity of the joint are improved, the anti-seismic property and deformability of the mortise and tenon joint wood frame are improved significantly, and the requirements of later installation and use are met.

The invention discloses an omnibearing leading-out terminal and a leading-out structure of a distribution transformer. The terminal is provided with an insulated mounting seat, a conducting core, a locking nut, a contact terminal, a connecting electrode, a cable connecting mechanism and an insulated external member; the terminal is arranged on an oil tank cover plate of the distribution transformer, when the locking nut is only partially engaged with the cylindrical upper end part of the conducting core, the contact terminal and the connecting electrode positioned on the outside of an oil tank can freely rotate relative to the oil tank cover plate, an installation interface of the connecting electrode can be coincident with the extension direction of an external cable on the site of the distribution transformer, and the external cable does not need to be bent when connected onto the connecting electrode through the cable connecting mechanism, so that the influence of contact heating caused by installation stress is reduced. The direction of connecting the external cable can be adjusted, the terminal has the advantages of convenient mounting, high universality and convenient wiring, the using requirement of product installation can be met to the maximum extent, and the using amount of cables can be saved.

The invention provides an anti-loose connecting pair. The anti-loose connecting pair comprises a bolt. The bolt can be sequentially sleeved with a nut, a sleeve body and a ring body. A thread part isarranged at the middle portion of a rod body of the bolt. The nut is in threaded fit with the thread part of the bolt. The inner wall, with a concave-convex structure, of the sleeve body is matched and engaged with the peripheral face, similarly with a concave-convex structure, of the nut. A section of smooth wall is further arranged on the inner wall of the sleeve body. A positioning shoulder isarranged between the smooth wall on the inner wall of the sleeve body and the concave-convex structure. The end face of the sleeve body and the end face of the ring body are provided with meshing faces capable of being mutually engaged. The ring body is further provided with a pin body in the radial direction, wherein the pin body can penetrate through the bolt and the ring body. The anti-loose connecting pair can be used in high vibration occasions and achieves heavy load mechanical structure connection, convenient dismounting and mounting can be achieved, the powerful vibration resisting capability is good, the anti-loose connecting pair can bear large axial stretching load and longitudinal shearing load heavy load alternating complex stress fields, the fatigue life is long, and the anti-loose capability is high.

The invention discloses an agricultural greenhouse framework mounting and fixing device having a press-type opening and closing structure. The device comprises greenhouse connecting pipes; each greenhouse connecting pipe is movably provided with a greenhouse connecting piece; each greenhouse connecting piece is fixedly provided with a connecting block; a transverse connecting hole and a longitudinal connecting hole are reserved in each greenhouse connecting piece; each greenhouse connecting piece is fixedly provided with mounting through holes; a loosened clamping block is movably installed ineach mounting through hole; each greenhouse connecting pipe is fixedly provided with a mounting positioning block; and each mounting positioning block is movably provided with a fixing clamping hole.The agricultural greenhouse framework mounting and fixing device having the press-type opening and closing structure is stable in entire structure, can conveniently carry out the operation of fixingand mounting, and reduces the operation difficulty, so that the mounting rate in the whole mounting process is higher, and the operation efficiency is increased; and since a cross-shaped mounting structure is added, the device can better adapt to different mounting positions, better fits to-be-mounted structures, meets the requirements of mounting and using.

The invention relates to an overall composite inner high-pressure flow type bulging device for a car drive axle. The bulging device comprises a bulging inner die, a bulging outer die and two thrust hydraulic cylinders, wherein the bulging inner die comprises an upper die block and a lower die block, and a multi-stage high-pressure flow type hydraulic cylinder is arranged between the upper die block and the lower die block. Two ends of the upper die block and the lower die block are respectively hinged with the piston rods of the two thrust hydraulic cylinders through link mechanisms. The multi-stage high-pressure flow type hydraulic cylinder comprises a high-pressure piston rod and at least two stages of high-pressure hydraulic cylinder bodies which are stacked and sheathed and adopt a telescopic structure, and the high-pressure piston rod is sheathed on the innermost layer of auxiliary hydraulic cylinder body. Oil ports connected with a hydraulic source are arranged in a piston rod chamber and a grading oil chamber of the multi-stage high-pressure flow type hydraulic cylinder, and two circulating oil ports are arranged in a rodless chamber. The bulging outer die comprises a support mechanism positioned on the transitional surface of an axle shell pipa bag. The piston rods of the two thrust hydraulic cylinders are oppositely arranged, and the axes of the two piston rods are positioned on the same one straight line. Moreover, a quick-detached connecting structure is arranged on the piston rod of one thrust hydraulic cylinder.

The invention discloses a tapered roller bearing with a positioning groove in an outer ring end face, and belongs to the technical field of automobile parts. The tapered roller bearing mainly solves the problems of interference fit requirements of manufacturers under special mounting conditions and difficulty in mounting and dismounting large bearings and bearings which are frequently dismounted.The tapered roller bearing is mainly characterized by comprising an inner ring, an outer ring, a retainer and rolling bodies, a key groove is formed in the position where the end surface of the outerring is connected with and corresponds to the outer diameter; after the bearing and the shell are assembled, a bearing ring and a matching surface are matched through the flat key groove to perform circumferential positioning, so that the aims of accurately mounting, positioning and using the bearing and conveniently mounting and dismounting the bearing are fulfilled, and the mounting and using requirements of the manufacturers are met. The tapered roller bearing has the characteristics of simple structure, accurate positioning and convenience and quickness in mounting and dismounting, and ismainly used for front and rear axles of bridge factories and engineering trucks.

The invention discloses a vertical semi-direct-drive permanent magnet synchronous motor which comprises an integral base, a transmission output mechanism and a vertical permanent magnet synchronous motor assembly are mounted in the integral base, the integral base comprises an outer shell, a mounting seat is integrally formed in the outer shell, and the integral base is divided into a first area and a second area by the mounting seat. The vertical permanent magnet synchronous motor assembly is connected with the transmission output assembly, an output end cover for sealing the first area is arranged on the integral base, a first sealing assembly is arranged at the contact position of the output end cover and the transmission output mechanism, and a second sealing assembly is arranged at the contact position of the installation base and the permanent magnet synchronous motor assembly. A vertical permanent magnet synchronous motor assembly and transmission output mechanism integrated scheme is adopted, high integration of a power device and a transmission device is achieved, the advantages of high efficiency, energy conservation, compact structure, low manufacturing and operation and maintenance cost, high reliability and the like are achieved, the sealing reliability of equipment can be remarkably improved by adopting a combined sealing assembly, and the manufacturing and operation and maintenance cost of the equipment is improved.

The invention discloses a self-adaptive garden tree cold-proof belt. The cold-proof belt comprises a belt body and a connecting mechanism used for connecting a fixed end with a free end, wherein the inner layer of the belt body is a heat insulating layer, the outer layer is a wrapping layer, one end of the belt body is the fixed end, and the other end is the free end; the belt body makes a circlethrough the connecting mechanism; and the connecting mechanism comprises a mounting block, a rack and a rotating ring, the mounting block is fixedly connected with the wrapping layer at the fixed end,a mounting through groove is formed in the mounting block, the free end penetrates through the mounting through groove, and a rotating groove communicating with the mounting through groove is formedin the mounting block, the rack is fixedly connected with the wrapping layer at the free end; and the rotating ring is rotationally arranged in the rotating groove. The shrinking movement tend of thecircle surrounded by the belt body has fluctuating change in a certain range, the overall cold-proof belt is in a relatively stable state and cannot become large all the time with growth of trees, andthe growth of the trees cannot be affected.