328 results about "Conical teeth" patented technology

The invention discloses a screw extractor for an orthopedic surgery. The screw extractor comprises a screw extracting tube, holding tubes, a dilator, holding clamps, conical teeth, tooth clamp convex sections, arc-shaped chucks, a driver bar and a dilating ball joint, wherein the dilator is arranged in the screw extracting tube through limit threads in a screwing manner; the holding tubes are arranged at the outer part of the screw extracting tube through fastening threads; handles are arranged at the outer sides of the upper end of the screw extracting tube, and the limit threads are arranged at the inner side of the upper end of the screw extracting tube; a plurality of holding clamps and holding clamp grooves are arranged at and formed in the lower end of the screw extracting tube; the arc-shaped chucks and the conical teeth are arranged at the lower ends of the corresponding holding clamps; one tooth clamp convex section is arranged at the inner side of each holding clamp; the driver bar is arranged at the lower end of the dilator; the dilating ball joint is arranged in the middle of the dilator; the dilating ball joint is moved by the dilator through the limit threads; the dilating ball joint pushes away the tooth clamp convex sections and drives the holding clamps to dilate; a bone screw cap is clamped and fixed by the plurality of arc-shaped chucks. According to the screw extractor disclosed by the invention, the screw cap is fixed by the arc-shaped chucks and the conical teeth; screws can be quickly and conveniently taken out and are prevented from sliding out of the groove, so that pains of a patient are relieved, and the efficiency of the surgery is improved.

The invention relates to a building garbage crushing device, particularly to an efficient garbage crushing device for buildings, and provides the good-crushing effect, high-crushing speed and high-automation degree efficient garbage crushing device for buildings aimed at solving the technical problem. The efficient garbage crushing device for buildings provided by the invention comprises a bottom plate, a left rack, a first slide rail, first sliding blocks, a crushing box, a guide plate, a right rack, springs, a pressing plate, a first supporting rod, a cam, a second supporting rod, a first belt pulley, a first connecting rod, a motor, a second sliding block, a second slide rail, a first moving rod, a pressing block, conical teeth, a third supporting rod, a top plate, a flat belt, a gear, a rack, an arc-shaped slide, a first pin roller, a second pin roller, a knocking block, and the like, wherein the left rack, the first slide rail, the guide plate and the right rack are sequentially arranged at the top of the bottom plate front left to right. According to the efficient garbage crushing device, the effects of good crushing effect, high crushing speed and high automation degree are achieved.

The invention relates to a baking tray support lifting mechanism for an oven. The mechanism is connected with a left baking tray support and the right baking tray support which are arranged on the left side and the right side of an inner container of the oven and used for supporting baking trays, and used for driving the left baking tray support and the right baking tray support to move up and down in the inner container of the oven; the mechanism is characterized by comprising a driving motor, a first gear, a second gear, a first worm, a second worm, a left transmission shaft, a third gear, first left conical teeth, second conical teeth, a left crank, a right transmission shaft, a fourth gear, first right conical teeth, second right conical teeth and a right crank. Compared with the priorart, the mechanism has the advantages that the lifting mechanism is realized through a crank sliding block principle, static self-locking can be achieved for oven side support at different heights inthe inner container of the oven; the oven support can rise and fall according to a trigonometric function uninterruptedly, an unexpected effect is brought for cooking, the structure is simple, and the reliability is high.

The invention discloses a glass crushing device. In the invention, the crushing box and the installation frame are both fixed on the frame, two crushing rotors are rotated and installed in the crushing box, the feeding box is fixed on the frame, the first guide rod and the second The two guide rods are plugged on the mounting frame, the push plate and the mounting plate are fixed on the first and second guide rods in layers, the first spring is sleeved on the first guide rod, and the upper and lower ends of the first spring are respectively Butt against the mounting frame and the push plate, the positioning nut is threadedly connected to the top of the second guide rod, the second spring is sleeved on the second guide rod, and the upper and lower ends of the second spring respectively abut against the positioning nut and the mounting frame Above, a number of crushing cone teeth are fixed on the lower end surface of the mounting plate, the crushing plate is arranged in the feeding box, the rack is fixedly connected with the first guide rod, and the incomplete gear is meshed with the rack. The invention avoids manual breaking of large glass pieces, reduces potential safety hazards, and directly enters between broken rotors after the large pieces of glass are broken, thereby improving efficiency.

The invention discloses a single-person all-terrain crawler-type moving carrier. The single-person all-terrain crawler-type moving carrier comprises a chassis, crawler wheel sets, a driving seat and a power transmission system, wherein the crawler wheel sets are arranged on both sides of the chassis respectively; the driving seat and the power transmission system are arranged on the chassis; a suspension damping system is arranged in each crawler wheel set; the power transmission system comprises an engine; a belt type continuously variable transmission is connected to an output shaft of the engine; a helical conical tooth differential mechanism is embedded into a driven disk of the belt type continuously variable transmission; the two output ends of the helical conical tooth differential mechanism are connected with a rear axle left half shaft and a rear axle right half shaft respectively; the rear axle left half shaft and the rear axle right half shaft are used for driving the crawler wheel sets on corresponding sides respectively. The single-person all-terrain crawler-type moving carrier has the advantages of simple and compact structure, convenience in operation and small size, and can be moved conveniently and rapidly on special terrains such as sand, mud, marsh, ice and snow by a single person.

The present invention discloses a cup-type distribution photovoltaic power generation self-tracking system and a control method. The system comprises a cup-type structure and a control unit. The cup-type structure comprises a first stepping motor arranged on a base. The first stepping motor drives an upper cylinder to rotate. A second stepping motor is arranged in the upper cylinder. Through a conical-tooth rotating mechanism, a solar panel is driven by the second stepping motor to conduct the pitching movement via a support rod. The four edges of the solar panel are provided with photosensitive transistors. The control unit comprises a CPU. The photosensitive transistors are connected with the CPU. The differential analysis and calculation is conducted on the switching values of the four photosensitive transistors by the CPU. The CPU respectively controls the first stepping motor and the second stepping motor via a motor driver, namely drives an azimuth-angle stepping motor and an elevating-angle stepping motor to drive a mechanical mechanism to rotate. In this way, the solar panel is enabled to track the sunlight in an orientation highest in illumination intensity all the time. The electric energy generated by the solar panel is delivered to a battery via a battery converter, and then the electric energy is used for powering up the control unit, the stepping motors and external loads by the battery. According to the technical scheme of the invention, the power generation efficiency of solar photovoltaic panels is effectively improved.

The invention discloses a flexible tool for annular part welding, and belongs to the field of mechanical tooling. The flexible tool comprises a first tool and a second tool, wherein the first tool comprises a clamping part and a sleeve; the second tool comprises a clamping part and a double-screw bolt; the two clamping parts comprise shells, drive mechanisms, transmission mechanisms and fixing assemblies; the drive mechanisms are fixedly arranged on the shells; the transmission mechanisms comprise conical tooth plates, bevel gears and screw rods; the drive mechanisms are in transmission connection with the conical tooth plates; the bevel gears are coaxially arranged at one ends of the corresponding screw rods and mesh with the conical tooth plates; the fixing assemblies comprise fixing blocks; the fixing blocks are in screw-thread fit with the corresponding screw rods; sliding chutes in one-to-one correspondence to the screw rods are formed in the shell; each sliding chute extends along the axial direction of the corresponding screw rod; the fixing blocks are slidably arranged in the corresponding sliding chutes; and the double-screw bolt is coaxially inserted into the sleeve. Theflexible tool for annular part welding provided by the invention can be applicable to welding annular parts with multiple specifications.

A personal electric cleaning tool comprises a handle part accommodating a driven element and a head part connected with a supporting body for supporting a cleaning element, wherein the supporting body limits a first joint shape; and a transmission rod with the end far away from the head operably connected to the drive element and the end close to the head part fixed with a drive wheel which limits a second joint shape matched with the first joint shape; when the transmission rod is driven by the driven element, the supporting body conducts reciprocating rotation with the drive wheel, wherein one of the first joint shape and the second joint shape is a shape limited by two opposite conical tooth surfaces on a cone gear, and the other of the first joint shape and the second joint shape is a shape limited by a conical tooth engaged with the two conical tooth surfaces. Through the personal electric cleaning tool, the volume of the head part of the personal electric cleaning tool is designed to be smaller, so that a user can more comfortably use.

The invention discloses a writing brush cleaning device comprising a device body, a first cavity formed in the device body and a second cavity formed in the device body. A first communicating hole isformed between the first cavity and the second cavity in a communicating mode. An inner conical tooth ring is fixedly mounted at an opening in the top of the first communicating hole. A second communicating hole communicating with the exterior is formed in the top wall of the second cavity. A first rotating block is rotatably arranged in the second communicating hole. A first gear is fixedly mounted at the bottom of the first rotating block. The writing brush cleaning device is simple in structure and convenient to operate, clamping and rotating of a writing brush are driven by the same powersource, meanwhile, reverse rotation of a cleaning container and jetting of cleaning liquid are driven while the writing brush rotates, and thus the cleaning efficiency and quality are improved; and meanwhile, the cleaned liquid is purified through a filtering device, recycling of the cleaning liquid is achieved, all the processes are mutually matched and not affected, and the practical performanceof the writing brush cleaning device is improved.

A personal electric cleaning tool comprises: a handle accommodating a driving element therein; a head connected with a supporting body supporting a cleaning element, the supporting body defining a first engaging shape; and a transmission rod, one end thereof far away from the head being operably connected to the driving element and the other end thereof near the head being fixedly provided with a driving wheel defining a second engaging shape matched with the first engaging shape, so that the supporting body rotates in a reciprocating manner along with the driving wheel as the transmission rod is driven by the driving element, wherein one of the first engaging shape and the second engaging shape is a shape defined by two conical tooth surfaces facing each other on one bevel gear, while the other one is a shape defined by one conical tooth engaged with the two conical tooth surfaces.

The invention discloses a mixed type downhole drilling bit. The mixed type downhole drilling bit comprises a drilling bit body, blades, heads and cones, wherein the blades and the heads are fixedly connected with the upper end of the drilling bit body; the lower ends of the heads are fixedly connected with the side wall of the drilling bit body; the cones are rotationally connected with the upper ends of the heads through shaft journals; an included angle is formed between a central axis of each cone and a central axis of the drilling bit body; multiple conical teeth or/and wafer cutting teeth are arranged on the blades; multiple chisel-point teeth and flat teeth are arranged on the cones. By the combination of impact crushing of a cone drilling bit and ploughing motion and shearing motion of a blade structure drilling bit capable of realizing mixed tooth distribution, downhole primary crushing is realized, fixed cutting teeth are effectively drilled into rock, the stick-slip phenomenon of the drilling bit in some specific strata is eliminated, impact load of the fixed cutting teeth is reduced, the probability of impact damage of the fixed cutting teeth is reduced, and the cutting efficiency and the mechanical drilling rate are increased.

The invention belongs to the technical field of machining, and particularly relates to an anti-deformation pipe fitting fixing device for machining. Aiming at the problem that most traditional fixingdesigns for pipe fitting machining are simple, generally, fixing is conducted by adopting the mode of extruding the exteriors of two sides, and thin-wall pipe fittings are prone to being deformed, thefollowing scheme is provided, the anti-deformation pipe fitting fixing device comprises a base, and a bracket and an L-shaped fixing vertical plate are welded to the two sides of the outer wall of the top of the base correspondingly; and a hydraulic rod is fixed to one side of the L-shaped fixing vertical plate through a bolt, and a clamping mechanism is installed at the top end of the base. According to the anti-deformation pipe fitting fixing device, driving bi-directional screws can be driven to rotate by arranging a driving mechanism, in the meantime, corresponding driven screws are driven to rotate oppositely through driving conical teeth and driven conical teeth which are the same in specification, accordingly, moving rods on limiting slide groove operate away from each other at thesame time and expand outwards, and uniform supporting and fixing treatment on the inner wall of a pipe fitting are achieved through arc-shaped abutting plates.

The invention relates to an anti-backlash transmission comprising trochoid gears and roll pins with conical teeth. The transmission has two transmission modes, and a pin gear is respectively externally meshed and internally meshed with the corresponding trochoid gears to implement the two transmission modes. The pin gear is provided with a plurality of conical roll pins, and tooth gaps are eliminated by axially pushing the pin gear along the end, which is provided with a small diameter, in a transmission procedure; and the trochoid gears are conical trochoid gears, and the trochoid gears and the pins are meshed to realize zero-backlash power transmission. The pin gear or the trochoid gears is driven by a servo motor to continuously relate, and accordingly a deceleration function or an acceleration function is realized. The anti-backlash transmission is simple in structure, requirements on high-speed and high-precision transmission are met, the tooth gaps generated by abrasion during transmission can be eliminated, the meshing accuracy is guaranteed, and the utilization rate of the roll pins is increased.

The invention discloses a corn threshing mechanism which comprises a rocker and a threshing cylinder. The threshing cylinder is in a hollow cylinder shape, one end of the threshing cylinder is an open part, the rocker is in an L shape, one arm of the rocker is a rotary shaft part, and the other arm of the rocker is a drive arm. The mechanism comprises a rack, a push plate, a fixed cone, a duplicate gear, a bevel gear, a milling cutter, an L-shaped support and a rotary shaft. The rack is connected with the threshing cylinder in a sliding mode, and the rack and the threshing cylinder are axially parallel. The fixed cone is fixed to the rack, points to the open part and is coaxial with the threshing cylinder. A straight tooth part of the duplicate gear is meshed with the rack, and a conical tooth part of the duplicate gear is meshed with the bevel gear. The rotary shaft part of the rocker is fixedly connected into a gear hole of the duplicate gear and is fixed to the threshing cylinder through a bearing. The rotary shaft is fixedly connected with the bevel gear and is fixed to the end face of the threshing cylinder through a bearing. The L-shaped support is located in the threshing cylinder, the short arm end of the L-shaped support is fixedly connected to the peripheral wall of the rotary shaft, the long arm end of the L-shaped support points to the open part, and the milling cutter is fixed to the front end of the long arm end. The corn threshing mechanism has the advantages of reducing labor intensity and improving efficiency.

The invention discloses a concave-convex wheel rocker arm type valve distribution mechanism. The concave-convex wheel rocker arm type valve distribution mechanism comprises a cylinder cover, wherein a vertical shaft and two rocker arm frames are arranged on the cylinder cover; a concave-convex wheel is arranged on the vertical shaft; conical teeth are arranged at the top of the concave-convex wheel; conical gears are arranged on the conical teeth and are located on a horizontal shaft; the gear ratio of the conical teeth to the conical gears is 2 to 1; the two rocker arm frames are respectively arranged on two radial positions of the concave-convex wheel; the inclined angle between the two radial positions is 90 DEG; and T-shaped rocker arms are arranged on the rocker arm frames. An internal combustion engine matched with the concave-convex wheel rocker arm type valve distribution mechanism is provided with concave-convex wheel rocker arm type valve distribution mechanisms with the same number as cylinders; the horizontal shafts of the valve distribution mechanisms are integrally connected, are located on shaft frames and are connected with crankshafts through driven chain wheels, chains and drive chain wheels; and the driven chain wheels have the same tooth number as the drive chain wheels. The concave-convex wheel rocker arm type valve distribution mechanism is simple in structure and convenient to manufacture, is reliable in performance and can tightly close and easily open the valve, is less in internal consumption, high in efficiency and more oil-saving, and can fully open the valve for conveniently sucking and exhausting air.

The invention provides a bird repelling device for a power transmission tower, and relates to the technical field of bird repelling for transmission lines. A box body is fixed on the outer wall of thetop of a base through screws, a through hole is formed in the outer wall of the top of the box body, the inner wall of the through hole is connected with a rotating rod through a bearing, a second conical tooth is in sleeve connection to the bottom end of the rotating rod, a mounting frame is fixed on the outer wall of the top of the rotating rod through screws, and laser bird repellers are fixedon two sides of the outer wall of the bottom of the mounting frame through screws; fan blades or motors rotate to drive the rotating rod to rotate, and then the laser bird repellers rotate to achievea purpose of repelling birds. The bird repelling device for the power transmission tower can achieve a good bird repelling effect, can prevent birds from affecting the operation of the power transmission tower, and ensures the use safety of the power transmission tower. Meanwhile, through a positioning module and a communication module, a worker of a control center can find the positions of different bird repelling devices, monitoring state information transmitted by the communication module can be received, and control instructions and the like can also be sent to a processor.

The invention discloses a chemical settlement reaction apparatus for production wastewater of thiophanate-methyl. The apparatus includes a reaction tank and an auto-rotating framework. An inner teethring is formed in the reaction tank. The auto-rotating framework is installed inside the reaction tank and is composed of a rotary shaft and stirring rods that are distributed on the rotary shaft in array. The rotary shaft is connected to a transmission rotary shaft through a transmission box. Second conical teeth, in the transmission box, are formed on the rotary shaft and are engaged with firstconical teeth which are fixed on the transmission rotary shaft. The upper end of the transmission rotary shaft is engaged with the inner teeth ring through a gear. In the apparatus, the auto-rotatingframework achieves rotation during revolution process, so that wastewater and a PAC flocculating agent are uniformly mixed, which is beneficial to adsorption on the impurities in wastewater.

The invention discloses a pit-digging apparatus convenient for moving. The pit-digging apparatus comprises a vehicle frame and a driving motor, a transverse slat is arranged at the vehicle frame, thetransverse slat is fixedly connected with a soil sampling barrel, a spiral blade is arranged in the soil sampling barrel, a rotation roller is fixedly connected with the spiral blade, a threaded rod is fixedly connected with the rotation roller, the threaded rod passes through the soil sampling barrel, and a screw sleeve is fixedly connected with at center position of the top of the soil samplingbarrel. An internal spline shaft and an external spline sleeve are arranged, cooperation of the internal spline shaft and the external spline sleeve drives the spiral blade to downwardly rotate, soilcan be dug, the structure is simple, dissipating energy is less, the soil sampling barrel and a soil-discharge pipe are arranged, the soil is dug and then raised, the accumulated soil is discharged, splash and diffusion of the soil can be avoided, anaphase refilling is convenient, and plantation efficiency is increased. The vehicle frame and a fixed plate having conical tooth are provided, and themobility and stability of the pit-digging apparatus are increased.