91results about How to "Improve tightening efficiency" patented technology

An assembly including a ratchet tightening device and a band. The device includes a base, a driving lever, and a pawl. For at least one tooth of a series of serrations of the band, at least one straight line tangent to the meshing surface of the tooth and parallel to the band, forms, together with the longitudinal direction of the band, an angle that is less than 90 degrees. A driving end of the lever is configured to cooperate with the serrations of the band. A retaining zone of the pawl is configured to cooperate with the serrations of the band.

The invention relates to the technical field of a bolt tightening process and discloses a calculation method for a bolt rotation angle method-based tightening process. The method comprises the steps of calculating an initial tightening torque and calculating a rotation angle, wherein the initial tightening torque and the rotation angle are obtained by calculation through basic parameters of a bolt and related constants. According to the calculation method, the initial tightening torque and the rotation angle can be obtained before a bolt tightening test is performed by utilizing a rotation angle method, so that the efficiency and reliability of the bolt tightening test are improved.

The invention relates to an automatic turnover system of a die assembly bolt of a pipe pile. According to the innovation point, the turnover system comprises a supporting base, guide plates, a mounting rack, nylon brushes and an adjusting mechanism; the automatic turnover system of the die assembly bolt of the pipe pile is mounted on the two sides of a pipe pile die rail; the nylon brush on the lower portion of the turnover system is obliquely located below the die assembly bolt in a vertical state and is closely attached to the die assembly bolt; and when a die assembly procedure is carried out after pipe pile dies are filled with concrete, a drive motor drives the nylon brushes to rotate, the nylon brush on the lower portion enables the die assembly bolt to rotate around the lower pipe pile die and then ascend to be in contact with the nylon brush on the upper portion of the turnover system, and therefore the die assembly bolt is driven by the nylon brush on the upper portion to continue to rotate, 180-degree rotation is achieved, and the die assembly bolt can be screwed down by workers conveniently.

The invention discloses an assembling method for a low-pressure turbine shaft-disc assembly of an aero-engine. The assembling method comprises the following steps that workpieces are installed, the position and the posture of a turbine shaft are adjusted; the turbine shaft butts joint and is pre-installed; an indexable tightening system is fed to a front end operation area; a tightening shaft is tightened; and the indexable tightening system returns back. According to the assembling method for the low-pressure turbine shaft-disc assembly of the aero-engine, an assembly mode that an axis of a low-pressure turbine shaft-disc is horizontal is adopted, the position and the posture of the low-pressure turbine shaft with the large length are adjusted precisely and advantageously in the butt-joint process, centering positioning alignment and end face correct close fitting of the turbine shaft relative to a connecting disc are achieved, and the butt-joint and assembling precision is improved;a turbine shaft position and posture adjusting table is applied, quantitative position and posture adjusting is conducted on the low-pressure turbine shaft through a mechanical way, experiential methods such as traditional manual hanger operating are replaced, manual repeated trial assembly and correction are avoided, the butt-joint efficiency is improved, and assembly consistency requirements ofassemblies are met; and the indexable tightening system is adopted, worker skill requirements and the labor intensity are reduced, and the tightening efficiency is improved.

The invention discloses automatic assembly equipment with collaborative gesture adjustment, collision prevention and tightening functions. The automatic assembly equipment comprises at least two pairsof POGO column mechanisms arranged on a base through two-dimensional motion mechanisms, and gesture adjustment movable platforms and screw tightening devices arranged on the POGO column mechanisms, wherein parts to be assembled are arranged in the screw tightening devices, and are aligned to fixed parts. The automatic assembly equipment has the advantages of high gesture adjustment motion capacity, high gesture adjustment motion precision, high bolt tightening efficiency and full automation, and can realize precise butt joint of the parts and bolt fastening. The automatic assembly equipment greatly reduces the part assembly difficulty and potential safety hazards, improves the butt joint efficiency, and meets the assembly process requirements.

The invention discloses a motor stator-rotor co-assembly device and method. The motor stator-rotor co-assembly device comprises a stator displacement device for driving a stator to rotate to change the axial direction of the stator, a grabbing hanger for hanging a rotor and a bolt automatic tightening device for automatically tightening a connecting bolt between a rotor end cover and a stator stock, wherein the stator displacement device is connected with the stator stock; the grabbing hanger is connected with a rotor shaft extending end; the bolt automatic tightening device is in matched connection with the connecting bolt; the rotor is assembled to the stator along with tightening of the connecting bolt; and the rotor end cover is in interference fit with the stator stock along with tightening of the connecting bolt. Automatic transposition of the stator and positioning after transposition can be realized, the stator and the rotor are ensured to complete vertical co-assembly along avertical direction, when the connecting bolt is completely tightened, stator-rotor co-assembly is realized, interference fit assembly between the rotor end cover and the stator stock is also realized,and the stator-rotor co-assembly automation level is improved, and the universality and the practicability are high.

The invention belongs to the field of clutch assembly and relates to a clutch press fitting device. The device comprises a placing table, a pressing head located above the placing table and a hydraulic cylinder used for driving the pressing head to vertically move; the pressing head comprises a fixing part and an extruding part; an elastic piece is connected between the extruding part and the fixing part; the extruding part is located below the fixing part; a fixing disc is fixedly connected to the fixing part; a plurality of tightening gears are distributed on the circumference of the fixingdisc; the tightening gears are rotationally connected to the fixing disc; tightening blocks detachably connected with the head of bolts are fixedly connected to the tightening gears; and the tightening blocks are located below the fixing disc; a first gear is rotationally connected to the fixing disc; the multiple tightening gears are engaged with the first gear at the same time; and the clutch press fitting device further comprises a driving mechanism used for driving the first gear to rotate. According to the clutch press fitting device provided by the technical schemes of the invention, thebolts can be automatically screwed into a clutch in a press fitting process.

The present invention relates to an isolating switch production system. An isolating switch comprises a base plate, an insulator and a conductive base; the conductive base is installed at one end of the insulator through a connection rack, and the other end of the insulator is installed on the base plate; and the system is characterized in that the comprises an assembling system, a sorting system and a package system which are arranged in order. The worker labor intensity is reduced, the work efficiency is improved, and the semi-automation production of the isolating switch is realized.

The invention discloses a wind turbine generator variable-pitch bearing bolt tightening method. The method includes the steps that (1) eight bolts at the 0-degree position, 45-degree position, 90-degree position, 135-degree position, 180-degree position, 225-degree position, 270-degree position and 315-degree position of a variable-pitch bearing are subject to first-time tightening according to the crossing method sequence; (2) the eight bolts on the variable-pitch bearing are averagely divided into eight zones through eight bolts; (3) the bolts in the eight zones are subject to regionalization first-time tightening according to the crossing method sequence; and (4) after first-time tightening of all bolts on the variable-pitch bearing is completed, second-time tightening of all the bolts is completed according to the sequence in the step (1) and the step (3), and finally final tightening of all bolts is completed according to the sequence in the step (1) and the step (3). According to the wind turbine generator variable-pitch bearing bolt tightening method, the regionalization tightening measure is taken, while the bolt tightening quality is guaranteed, the process is optimized, the labor intensity of workers is reduced, and potential safety hazards are eliminated.

The invention discloses an installation mechanism for a handle material guide pipe of a fire extinguisher. The installation mechanism disclosed by the invention comprises a workbench provided with a material bin, wherein the material bin comprises a material storage groove with a bottom which is of a slope surface structure, and a single-pipe material guide groove vertically connected to the lowest part of the slope surface; a material push plate driven by a horizontal cylinder and making direct contact with the material guide pipe is arranged at the rear side of the single-pipe material guidegroove; a single-pipe material feeding baffle is hinged to the bottom of the front panel of the single-pipe material guide groove; a lifting limit plate is arranged at the front side of the single-pipe material feeding baffle at an interval; a pipe screwing area is formed between the lifting limit plate and the single-pipe material feeding baffle; a pipe screwing motor connected with a push-pullcylinder is arranged at one end of the pipe screwing area; a pipe screwing shaft connected with the material guide pipe in a sleeving manner is connected to the pipe screwing motor; and the pipe screwing shaft comprises a conical head and a limit bulge. According to the installation mechanism disclosed by the invention, automatic installation for the handle material guide pipe is realized throughthe cooperation of a material push mechanism and a pipe screwing mechanism, so that the labor amount of workers is greatly reduced, and the screwing efficiency for the material guide pipe is effectively increased; and the installation mechanism is quite suitable for the production takt of an automatic production line for fire extinguishers.

The invention discloses a combined wire tightening tool for tightening a conductive wire of a circuit, relates to mounting and maintaining equipment for an overhead line or cable, and is used for solving the problems of low wire tightening efficiency and damage to the conductive wire caused by insecure connection of the existing wire tightening device. The combined wire tightening tool for tightening the conductive wire of the circuit comprises a bottom plate and hoops which are arranged on the bottom plate; a rope wheel and an outer protective cover with an inverted U-shaped cross section are arranged on the bottom plate; a rotating shaft of the rope wheel extends out of the outer protective cover and is driven through a rotating disc; rolling shafts are arranged on three edges of the tail part of the outer protective cover; a roller is arranged outside each rolling shaft; the rolling shafts are arranged at the tail part of the outer protective cover of the bottom plate; the rollers are arranged outside the rolling shafts; a traction rope is arranged on the rope wheel; the traction rope extends out of the outer protective cover through the tail part of the outer protective cover. The combined wire tightening tool for tightening the conductive wire of the circuit is used for tightening the wire of the overhead line, is high in wire tightening efficiency, and can reduce the damage to a cable.

A fast tightening device for a screw pair in small space comprises a sleeve and a fast dismounting wrench and is used for tightening and dismounting a redundant tube self-sealing nut between two servo mechanisms in a new-generation carrier rocket servo system. In a new-generation carrier rocket servo product, mounting space for a redundant tube self-sealing joint is small, then one open transfer sleeve is designed skillfully, a redundant tube is avoided, the sleeve is clamped to the nut conveniently, and the tightening space for the wrench is increased; meanwhile, opening appearance and size of the fast tightening wrench are designed specially, so that the nut can be tightened when the wrench clamps the transfer sleeve once, the position of the wrench relative to the sleeve is changed counterclockwise, and the nut is tightened clockwise. During dismounting, the wrench direction is changed, the position of the wrench relative to the sleeve is changed clockwise, and the nut is dismounted counterclockwise. The fast tightening device can be extensively applied to other conditions of fast mounting and dismounting of nuts in small space.

The invention relates to a prefabricated reinforcement cage rapid butt joint device. The device comprises a plurality of vertically-arranged lower main reinforcements, threaded sleeves arranged at thetop ends of the lower main reinforcements and vertically-arranged upper main reinforcements, and further comprises a limiting clamping base which comprises a left clamping base and a right clamping base which are symmetrically arranged. Limiting cavities used for limiting the position of a lower reinforcement cage are formed in the left clamping base and the right clamping base correspondingly, the left clamping base and the right clamping base are detachably connected, and screwing assemblies used for automatically screwing the threaded sleeves are arranged on the upper surface of the limiting clamping base. Each screwing assembly comprises a driving motor vertically arranged on the upper surface of the limiting clamping base, a driving gear fixedly arranged on an output shaft of the driving motor and a driven gear ring arranged on the circumferential side wall of the corresponding threaded sleeve, the driving gears are meshed with the driven gear rings, and the driving motors are detachably connected to the upper surface of the limiting clamping base. The device has the effect of improving the butt joint construction efficiency of a reinforcement cage to a great extent.

The invention discloses a wire end twister, which comprises a drive device, a twister head which can tighten bare wire ends is mounted at an output end of the drive device, wherein the twister head comprises a rotary seat, interlocked seats and twister arms, the lower portion of the rotary seat is equipped with a drive interface for inserting the output end of the drive device, the upper portion of the rotary seat is fixed with a plurality of circumferentially arranged interlocked seats, the L-like twister arms are fixed on the interlocked seats, and a wire twister mouth is formed in a gap among the twister arms. When twisting a wire, one end of a bare wire without a casing is inserted into the wire twister mouth, then the drive device is started to directly drive the rotary seat to rotate in high speed to further drive the twister arms to rotate, and because the top ends of the twister arms are inclined, the bare wire end inserted in the wire twister mouth can be twisted tightly. The wire end twister has simple and easy operation in the whole process, effectively increases twisting effect and pass rate of wires, and can reduce labor cost and meet requirements of batch production.

The invention discloses an aluminum foil cap packing mechanism which comprises a bottle conveying mechanism, a bottle cap tightening mechanism and a cap conveying mechanism. The bottle conveying mechanism comprises a rotary disk barrel, a rotary disk and a bottle containing bayonet. The bottle cap tightening mechanism comprises a rotating shaft, a tightening wheel, a first rotating shaft, an elastic portion and a pull rod. The tightening wheel comprises a tightening wheel base and a rolling wheel. The cap conveying mechanism comprises a cylindrical cap conveying barrel. A spiral cap-discharge guide rail is fixedly connected to the inner wall of the cap conveying barrel. The bottom of the cap conveying barrel is further provided with a power output device used for braking the motion of a bottle cap. The exit end of the spiral cap-discharge guide rail is further connected with a cap-discharge guide rail. The tail end of the cap-discharge guide rail is located over the rotary disk. The aluminum foil cap packing mechanism is high in working efficiency, and a simple structural form enables the aluminum foil cap packing mechanism to be easy to operate and maintain.

The invention discloses a seven-spiral grounding wire clamp, which comprises a fixed frame and a movable clamping block slidably connected with the inner side of the fixed frame, wherein the bottom end of the movable clamping block makes contact with the top end of a screw rod, the screw rod is of a seven-threaded structure, and the bottom end of the screw rod penetrates through a guide hole formed in the bottom end of the fixed frame and then is fixedly connected with a connecting column. According to the seven-spiral grounding wire clamp adopting the structure, the screwing efficiency (the rotating speed of the seven-spiral grounding wire clamp is seven times that of a conventional single thread) is improved by arranging the screw rod with the seven-threaded structure, and the connectingreliability between the screw rod and the positioning cylinder is improved by arranging the positioning spring in the positioning cylinder connected with the screw rod so as to reduce the possibilitythat the screw rod is disengaged from the positioning cylinder.

The invention discloses a tackle fixing plate for overhead line stringing. The tackle fixing plate comprises a plate-shaped body, a tackle fixing structure and a backup plate. A U-shaped through groove which penetrates through the plate-shaped body in the thickness direction of the plate-shaped body is formed in the plate-shaped body. The plate-shaped body is provided with two first through holes which are formed in the two sides of the U-shaped through groove respectively. Two second through holes are formed in the backup plate. The two second through holes correspond to the two first through holes in position. The backup plate is fixed to the plate-shaped body through two bolts. The tackle fixing structure is arranged at the top end of the plate-shaped body. The tackle fixing structure comprises two vertical plates, wherein the two vertical plates are arranged in parallel, each vertical plate is provided with a third through hole, and a bolt sequentially penetrates through the third through holes of the two vertical plates and is fixed in the two third through holes. The tackle fixing plate for overhead line stringing can improve safety and reliability of electric transmission line conductor stringing, improve stringing efficiency and the like.

The invention relates to the field of hydraulic buffer assembly production. The invention provides a hydraulic buffer assembly production system. The system comprises piston component assembly production equipment. The equipment comprises a rack, and a turntable assembling device, a mandrel tightening device, a first baffle ring feeding device, a piston feeding device, a guide sleeve component feeding device, a second baffle ring feeding device, a limiting nut feeding tightening device, a rebuilt valve feeding device and a locking nut feeding tightening device which are mounted on the rack, ajig mechanism used for vertically fixing a connecting piece is installed on an assembling frame mechanism in a sliding manner, and the jig mechanism continuously and annularly circulates on the assembling frame mechanism. The mandrel tightening device, the first baffle ring feeding device, the piston feeding device, the guide sleeve component feeding device, the second baffle ring feeding device,the limiting nut feeding tightening device, the rebuilt valve feeding device and the locking nut feeding tightening device are sequentially arranged at the periphery of the turntable assembling device, so that the devices act at the same time, and the assembling efficiency is improved.

The invention relates to the field of automobile exhaust pipe detection. An automobile exhaust pipe detection equipment comprises a flow detection device, a cold insertion device, a hot embedding device, a tightening device, a dust removal device, a leakage test device and a control system; the flow detection device is connected with the cold insertion device; the flow detection device is used forflow detection of an exhaust pipe; the cold insertion device is used for performing cold insertion processing on the exhaust pipe; the hot embedding device is connected with the cold insertion device, and the hot embedding device is used for performing nut hot embedding processing; the tightening device is connected with the hot embedding device, and the tightening device is used for tightening anut on the exhaust pipe; the dust removal device is connected with the tightening device, and the dust removal device is used for performing dust removal on the interior of the exhaust pipe; and theleakage test device is connected with the dust removal device, and the leakage test device is used for detecting the leakage condition of the exhaust pipe. The automobile exhaust pipe detection equipment provided by the invention has the advantages of improving the anti-leakage sealing performance and the anti-blockage effect of the exhaust pipe, and further improving the detection effect and thedetection quality of the exhaust pipe.