113results about How to "Reduce stuck phenomenon" patented technology

The invention discloses a vacuum direct-current fast circuit breaker which comprises a spring action mechanism box, an insulation pull rod, a permanent magnet, an electromagnet, a lower outgoing lineterminal, a vacuum arc-extinguishing chamber and an upper outgoing line terminal, the end, away from a transmission device, of a dual-arm pull rod is movably connected with the insulation pull rod, abreaking spring is fixedly connected to the end, close to the transmission device, of the dual-arm pull rod, the insulation pull rod penetrates through a fixing piece and a lower pressing plate to befixedly connected with a movable conductive rod, a plurality of contact springs are symmetrically arranged on the upper side of the upper pressing plate, the upper end of the movable conductive rod penetrates into the vacuum arc-extinguishing chamber and is fixedly connected with a moving contact, transverse rods are symmetrically arranged at the two sides of the upper end of the movable conductive rod, the tail ends of the transverse rods are each fixedly provided with a sliding block, the sliding blocks are slidably installed on guiding sliding rails, the guiding sliding rails are fixedly arranged on the two sides on the inner wall of the vacuum arc-extinguishing chamber, and a fixed contact is arranged above the middle of the moving contact; according to the vacuum direct-current fast circuit breaker, by arranging the transverse rods, the sliding blocks and the guiding sliding rails, the guiding effect on movement of the movable conductive rod is achieved, and the phenomenon of clamping of the movable conductive rod is reduced.

The invention relates to a smart card overturning module comprising a card overturning rear supporting plate, a card moving motor, a card overturning front supporting plate, and a stepping motor. The output shaft of the card moving motor drives a pair of synchronizing wheels below to rotate synchronously by means of a synchronous belt. The top of each of the pair of synchronizing wheels is provided with a corresponding rubber wheel. A gap between each rubber wheel and the corresponding synchronizing wheel is less than the thickness of a smart card. A counterweight block is disposed on a position, corresponding to the card moving motor, between the pair of synchronizing wheels. After a card-in sensor detects that the card is fed in, the card moving motor starts to rotate after receiving a signal and drives a card passing synchronizing wheel rotate by means of a card passing synchronous belt. The card passing synchronizing wheel and the rubber wheels above clamp the card and inwardly feed the card into a card overturning module. According to a card manufacture requirement, the stepping motor rotates if the card is required to be overturned. A card overturning synchronizing wheel is driven by the synchronous belt to rotate by 180 degrees. Then the card overturning front supporting plate drives the card overturning rear supporting plate and a card overturning module between the card overturning front supporting plate and the card overturning rear supporting plate to integrally rotate by 180 degree. In the meantime, the card moving motor starts to rotate and feeds the card out of a card overturning structure from an opposite side.

The invention discloses a fingerprint lock, which comprises a lock case panel, a braking device, and a peach clutch for fingerprint identification handle, and is characterized in that: the lock case panel is provided with an arc-shaped pressing bar, and one end of the arc-shaped pressing bar It is connected with the braking device, and the other end is sleeved on the column of the lock housing panel through the reaming hole on it, and the arc part of the arc pressure rod is pressed on the marble in the peach clutch. The brake device is composed of a motor and a slide block, the output shaft of the motor is provided with a torsion spring, the slide block is sleeved on the torsion spring, and one end of the arc-shaped pressing rod is connected with the slide block. Since the motor controls the opening and closing of the peach clutch of the fingerprint recognition handle through the torsion spring to drive the arc-shaped pressure rod, the stability of unlocking the lock is greatly enhanced, and the phenomenon of parts being stuck during the opening process of the lock is reduced. The invention has the characteristics of simple structure, safe and reliable use, and durability.

The invention discloses an electronic expansion valve which is sequentially provided with a valve needle, a bearing block, a nut and a valve rod relative to an inlet shaft of a valve seat in the axial direction; the valve needle is internally arranged in the bearing block which is fixedly arranged on the valve seat; the valve rod and the nut are in screw thread fit and drive the valve needle to shift axially; and the nut adopts a plastic material and is integrally formed by means of injection molding with the bearing block. Based on the prior art, the self-structure and fit relationship of the nut are improved so as to increase the coaxiality between the nut and the valve seat and guarantee the work reliability of a complete machine. On the basis, the invention also provides a manufacturing method for the electronic expansion valve.

Provided is a fish classification device of an interrupted bamboo-joint type nonlinear structure. The device includes a feeding mechanism, a discharging mechanism and a classification aligning mechanism; a discharging end of the feeding mechanism is connected with a feeding end of the discharging mechanism, the classification aligning mechanism is positioned above the discharging mechanism, the feeding mechanism comprises a feeding hopper and a feeding pipe, and an outlet end of the feeding hopper is connected with an inlet end of the feeding pipe; the discharging mechanism comprises a guide rail rod, a discharging plate, a side baffle, a guide rail front-end plate and a guide rail rear-end plate; the side baffle is positioned at the lateral side of the discharging plate; the guide rail front-end plate is positioned at the inlet end of the discharging plate; the guide rail rear-end plate is positioned at an outlet end of the discharging plate; the guide rail rod is arranged above the discharging plate; one end of the guide rail rod is connected with the guide rail front-end plate, and the other end of the guide rail rod is connected with the guide rail rear-end plate; the classification aligning mechanism comprises a cross beam, a cross beam rod, a connecting rod and a baffle, the cross beam is arranged on the side baffle, the cross beam rod is located in a groove of the crossbeam, the connecting rod is matched with the cross beam rod, and the baffle is matched with the connecting rod.

The invention relates to the technical field of anti-theft equipment, and discloses an adjustable shared bicycle lock which comprises an axle, a rotating disc is assembled on the side wall of the axle, a fixed disc is arranged outside the rotating disc in a sleeving mode, and a filling cavity filled with magnetorheological fluid is formed between the rotating disc and the fixed disc. According tothe adjustable shared bicycle lock, the viscosity of magnetorheological fluid is controlled through the size of the outlet of the magnetic block, then riding resistance is controlled, when a user onlynormally commences, the user selects a state with small resistance and normally cleans the bicycle to reach a destination, and when the user needs to do fitness, riding resistance is improved, and riding exercise intensity is increased; when the resistance is adjusted to the maximum, the shared bicycle can hardly be ridden, so that the purpose of limiting the use of the shared bicycle is achievedby replacing a traditional bicycle lock, and secondly, main parts are all located in the axle and the fixed disc, are slightly influenced by the external severe environment and reduce the failure rate.

The invention discloses a nine-degree-of-freedom robot tightening control method for assembling a thin-wall large threaded part. The robot tightening control system comprises a tightening controller, a six-degree-of-freedom Stewart platform and a three-degree-of-freedom series mechanism, wherein the six-degree-of-freedom Stewart platform is located at the bottom and used for adjusting the pose of an upper platform tightening mechanism; the three-degree-of-freedom series mechanism is fixed to the six-degree-of-freedom Stewart platform and used for executing tightening control; a laser ranging module is used for collecting information about the distance between a shell and a to-be-assembled bolt piece, and axial alignment of the bolt piece and the shell and pose error correction in the fitting stage are achieved through a pose compensation algorithm; and a switching control method based on a pose/torque/corner controller is used, and a segmented switching control strategy is executed according to feedback information of various heterogeneous sensors. According to the method, automatic alignment, error compensation and tightening control operations in the assembly of the thin-wall large-thread part are realized, the occurrence probability of the thread pair jamming phenomenon can be reduced, and the assembly efficiency and quality of the thin-wall large-thread part are effectively improved.

The invention discloses a filtering driving device and intelligent robot integrated system, comprising a filtering driving device, a mechanical arm and a mechanical wrist; wherein rotation of the mechanical arm around self axis, pitching movement of the wrist and rotation of the mechanical wrist around self axis all adopt a filtering driving device with high precision less differential gear reducer. The mechanical arm of the invention is flexible smoothly, arm driving and transmission gear is arranged in an integrated way, assembly error can be reduced to utmost extent, transmission accuracy is improved, running state of a transmission gear is improved, bite phenomenon in running is avoided, abrasion among running components is reduced, running noise of mechanism is reduced, transmission efficiency is improved, high performance electromechanical transmission and robot integrated system with high precision, high reliability, long service life, low energy consumption, small volume and light weight is realized, and meanwhile manufacturing processing technology is simple, production manufacturing cost is low, mounting and committing are easy, and dismounting and maintenance are convenient. The invention can be widely applied to engineering equipment in fields of robot, space flight, shipping, automation, advanced manufacturing and the like.

The invention provides a compensation dropper full-pneumatic screening and storing device and a drip irrigation pipe belt production line. The compensation dropper full-pneumatic screening and storingdevice comprises a dropper screening device and a dropper storing device. The dropper storing device comprises a groove plate, a bottom plate, a pressing plate and an air supply module. The groove plate is provided with a first spiral groove and further provided with a plurality of ventilation holes. The ventilation holes are distributed in the extending direction of the first spiral groove and communicate with the first spiral groove. The bottom plate is arranged at the bottom of the groove plate and further provided with an air inlet. A second spiral groove is formed in the upper surface ofthe bottom plate. The air inlet communicates with the second spiral groove. The second spiral groove is located below the first spiral groove and communicates with the ventilation holes. The air supply module is connected with the air inlet and used for delivering air to an air inlet cavity. The pressing plate covers the first spiral groove. The first spiral groove is connected with an outlet ofa delivering channel. Accordingly, the circumstance that droppers are jammed is reduced, the using reliability is improved, and thus, the requirement for continuous running of the production line is met.

The invention relates to the field of casting technologies, in particular to a pneumatic flexible core assembling tool. The pneumatic flexible core assembling tool comprises four sets of pneumatic core assembling tables. The pneumatic core assembling tables are arranged in the X direction and the Y direction of a plane core assembling platform correspondingly, and every two sets of pneumatic core assembling tables are arranged oppositely. Each set of pneumatic core assembling table comprises a pneumatic cylinder, a clay core positioning block, guide rails and a regulating valve. A piston of each pneumatic cylinder is connected with the corresponding clay core positioning block through a connecting rod. Each clay core positioning block is installed on the corresponding guide rails. Each regulating valve communicates with the corresponding pneumatic cylinder. The guide rails are further provided with buffer type clay core positioning blocks. Each clay core positioning block is connected with the corresponding buffer type clay core positioning block. The pneumatic flexible core assembling tool has the beneficial effects that first, the phenomenon that castings with a high dimensional accuracy requirement cannot get stuck in place is reduced, and brittleness core assembly damage and scrapping are also reduced; and second, as for castings with a low dimensional accuracy requirement, the fit clearance of clay cores can be made relatively small, clay core movement can be reduced, and dimensional accuracy of inner cavities of the castings is improved.

The invention discloses an aluminum alloy window convenient to push and pull, and relates to the field of building materials. The aluminum alloy window comprises a frame, an outer-layer sliding windowbody and an inner-layer sliding window body; the upper and lower ends of the frame are provided with two sliding rails front and back respectively, the upper and lower ends of the outer-layer slidingwindow body and the upper and lower ends of the inner-layer sliding window body are provided with sliding grooves, the outer-layer sliding window body is installed on the frame through the sliding rail at the back portion, and the inner-layer sliding window body is installed on the frame through the sliding rail at the front portion; the left and right sides of the frame are provided with lockingdevice respectively, the left side of the outer-layer sliding window body and the right side of the inner-layer sliding window body are provided with locking blocks, and the locking blocks correspondto the two locking devices respectively. The aluminum alloy window solves the problems that in the prior art, an aluminum alloy push-and-pull window is easily stuck during sliding, and when inner andouter window bodies are located at the same position, the window body at the outer layer cannot be pushed and pulled.

The invention provides a sealing assembly and sealing equipment comprising the sealing assembly. The sealing assembly comprises a sliding sleeve, a sealing sleeve, a first limiting sleeve, a second limiting sleeve and an inner fixed sleeve. The first limiting sleeve and the second limiting sleeve are fixed to the two ends of the inner fixed sleeve correspondingly. The sliding sleeve is formed by splicing at least two sliding branched petals, and the two ends of each sliding branched petal are mounted in the first limiting sleeve and the second limiting sleeve in a radial moving fit mode correspondingly. The outer wall of the sealing sleeve is in seal fit with the inner wall surface of the sliding sleeve. The sealing sleeve is formed by splicing at least two sealing branched petals, and each splicing gap of the sliding branched petals corresponds to one sealing branched petal. An outer boss stretching outwards is arranged on the outer wall of the inner fixed sleeve. An inner boss stretching inwards is arranged on the inner wall of the sliding sleeve. The first side face of the outer boss is in seal fit with the end face of the first side of the inner boss. The sealing performance of the sealing assembly can be guaranteed when the outer diameter of the sealing assembly changes.

The invention discloses an electronic expansion valve and refrigeration equipment. The electronic expansion valve comprises a valve shell, a valve element base, and a nut; the valve element base is installed on the valve shell, and a valve port is formed in the valve element base; and the nut is installed on the valve shell, and a silencing gap is formed between the nut and the valve element base.According to the electronic expansion valve, noise can be effectively lowered, the risk that the valve needle gets stuck is reduced, and the using effect of the electronic expansion valve is improved.

The invention discloses a die for producing a computer display screen base and a guide structure thereof. The die comprises a guide column arranged on a movable die and a guide sleeve arranged on a fixed die and matched with the guide column, the guide column comprises a fixed column fixed to the movable die and at least one movable column in sliding fit with the fixed column; a buffering portion supportive of being squeezed by the movable column and axially deforming and being compressed is arranged in the guide sleeve, in this way, sliding distance at the end of the guide column is dispersed on the whole guide column, burden at the end of the guide column is reduced, and local wear is reduced, so that matching smoothness of the guide column and the guide sleeve is improved; a one-way air incoming structure and a one-way air outgoing structure are arranged between a sliding block on a penetrating column and a sliding cavity, so that speed at which the guide column is inserted into the guide sleeve can be lowered in the process of die assembly, heat yield and wear between the guide column and the guide sleeve can be lowered, and practical effect of the guide structure is further improved while service life of the same is further prolonged, so that quality of the display screen base produced by injection molding is improved.

The invention discloses an automatic-backwashing sedimentation type micro-filter, comprising a rotary drum, a backwashing device and a mounting bracket, wherein the backwashing device comprises a central pipe shaft, a high-stroke submersible pump, a spray head mounting pipe, spray heads, a sewage receiving hopper and a transmission mechanism; the central pipe shaft is a stainless steel pipe, and a water inlet pipe and a sewage discharge pipe which are concentric are respectively arranged on the left side and the right side of the central pipe shaft; a gap with a certain width is formed between the water inlet pipe and the sewage discharge pipe and functions as a water outlet; the water inlet pipe and the sewage discharge pipe are welded together via a connecting strip to form an integral body; the sewage receiving hopper and the spray head mounting pipe are mounted right above the central pipe shaft; the transmission mechanism is mounted on the sewage discharging pipe located on the right side of the central pipe shaft; the rotary drum is mounted on the central pipe shaft; the central pipe shaft serves as a shaft the rotary drum; the sewage receiving hopper is in a funnel shape, the lowest part of the sewage receiving hopper is connected and communicated with a blow-off pipe, and the spray head mounting pipe is mounted right above the sewage receiving hopper; and the spray head mounting pipe is a pipe with two closed ends and is fixed on left and right fixed pipes, a plurality of holes are formed right below the spray head mounting pipe for mounting the spray heads, and a hole is formed in the side surface for mounting a water supply pipe which is to be connected and communicated with the high-stroke submersible pump.

The invention discloses a salt covering treatment method for salting smelly mandarin fish, which comprises the steps of fish cleaning, fishy smell removal, salt frying and salt covering. The method has the beneficial effects that the mandarin fish is transferred by using a moving frame, so that automatic feeding and taking of mandarin fish salt covering operation are realized, manual pushing operation is not needed, and the operation is simple and convenient. The use efficiency of the device is further improved, manpower and time are saved, fatigue of operators is relieved, and meanwhile, manual pushing operation is reduced, so that pollution of hands to mandarin fishes is reduced, the sanitary condition of the whole salt covering operation is improved, deterioration of the mandarin fishes is reduced, and economic benefits are improved. A clamping net is driven by a third motor, the mandarin fish can be rotationally adjusted, so that the mandarin fish can be more comprehensively coated with salt, the situation that the mandarin fish goes bad due to the fact that the mandarin fish is not locally coated with salt is avoided, the mandarin fish salt coating uniformity is improved, and the mandarin fish salt coating effect of the device is improved.

The invention relates to a rubber covered roller rice huller with an anti-clamping function. The rubber covered roller rice huller comprises a main body, a rice hulling device and two supporting columns, and further comprises an anti-clamping mechanism and a clearing mechanism, wherein the anti-clamping mechanism comprises a fixed box, a filter drum, a feed pipe, two driving assemblies, two firstsprings and two transmission assemblies, the clearing mechanism comprises a an air blowing assembly and a collecting assembly, the air blowing assembly comprises an air blowing box, a first air bag, an air inlet pipe, an air outlet pipe, a plurality of nozzles and a plurality of second springs, and the collecting assembly comprises a collecting box, a second air bag, an exhaust pipe, a connectingpipe and a plurality of third springs. According to the rubber covered roller rice huller with the anti-clamping function, the function that grains enter the main body at a constant speed is realizedby the aid of the anti-clamping mechanism, a wind path from left to right is formed in the main body by the aid of the clearing mechanism, so that rice hulls can be blown into the collecting box, a function of collecting the rice hulls is realized, a function of clearing the rice hulls in the rice grains is realized, manual cleaning is not needed, and convenience in cleaning is improved.

The invention provides a hay automatic planting device based on desert sand stabilization and soil improvement, relates to the field of desert environmental management devices, and solves the problemsthat grass cannot be laid when pressing is implemented as automation degree is low, maintenance cost is high, and integrated replacement is needed when rollers are severely abraded. The hay automaticplanting device comprises a rotatable adjusting seat, two fixed seats are symmetrically welded on the rear end surface of the rotatable adjusting seat, and a frame is rotatably connected on the frontend surface of the rotatable adjusting seat. A limit structure can vertically slide along the frame under the actions of a sliding rod and a spring, so that the device can adapt to rough ground, thefront end of a limit block is inclined, the inclined angle of the front end of the limit block is 30 degrees, and the limit block is more smooth when slidably contacting with the ground when the device is used on the rough ground, so that locking is decreased.

The invention relates to a hydrogen sealing device and a sealing method for a steam turbine generator set. According to the technical scheme, a generator rotating shaft at the opening of a sealing seat is sleeved with a resistance disc which is fixed together with the generator rotating shaft, and the resistance disc extends into the inner cavity of the sealing seat from the opening of the sealingseat; a first sealing ring and a second sealing ring which slide left and right in the axial direction of the the generator rotating shaft are arranged in the sealing seat on the two sides of the resistance disc correspondingly, a plurality of first spiral grooves which are uniformly distributed are formed in the outer periphery, right opposite to the first sealing ring, of the resistance disc; and a plurality of second spiral grooves which are uniformly distributed are formed in the outer periphery, right opposite to the second sealing ring, of the resistance disc. Compared with the prior art, two-stage spiral groove type dynamic pressure oil film seal between the sealing rings and the resistance disc and two-stage groove type dynamic pressure oil film seal between sealing floating ringsand the generator rotating shaft are required during hydrogen leakage, and the leakage amount is small; and sealing gaps formed between the sealing rings and the resistance disc due to the dynamic pressure effect of the spiral grooves are small, and therefore the leakage can be effectively reduced.