6192results about "Gearing elements" patented technology

A power transmission line crimped pipe detection system, and a method. The detection system comprises: a beam-type platform (25) and a detection robot (30). The beam-type platform (25) is connected to the detection robot (30) by means of a rope body and is arranged on a bundled conductor (23) to control the ascent and descent of the detection robot (30). The detection robot (30) comprises: a robot body (65), a rotating mechanism connected to the robot body (65), and a detection mechanism, the rotating mechanism being connected to the detection mechanism. The detection robot (30) is configured to change the relative position between the detection mechanism and the robot body (65) by means of the rotating mechanism, so as to perform balance control during processes of climbing up and down a line and during detection processes.

The invention belongs to an electromechanical braking system in the technical field of vehicles, and discloses a driving and parking braking torque mutual coupling redundancy electromechanical braking system which comprises a brake assembly, an MGU and shell, a driving braking motor and gear reducing mechanism assembly, a gear system bearing support and an ECU controller assembly. The service braking gear reduction mechanism assembly comprises a service braking first-stage reduction gear train mounting mechanism, a second-stage reduction gear train mounting mechanism and a bearing, and the parking braking gear reduction mechanism assembly comprises a parking first-stage reduction worm and gear mechanism, a second-stage reduction worm and gear mechanism and a mounting bearing. The braking torque of the driving braking and the braking torque of the parking braking are mutually coupled, the two systems can share the braking output gear shaft assembly, the driving braking and the parking braking can be independently operated, and meanwhile the parking braking can assist the driving braking when needed. By means of the design, the safety and reliability of the braking system are improved.

The invention discloses a high-precision and high-reliability harmonic reducer tooth profile simulation machining design method, and belongs to the field of precision transmission. A composite cycloid flexible gear tooth profile is designed by establishing a harmonic reducer geometrical relationship model, deducing a flexible gear deformation equation, an accurate rotation angle relationship and a meshing theory based on an envelope method, and a conjugate region and a conjugate tooth profile are calculated by utilizing MATLAB. Actual deformation and theoretical deformation errors of the flexible gear are analyzed through finite element simulation, flexible gear profile parameters are optimized, an actual neutral layer curve is generated, and then a rigid gear profile is enveloped and calculated. The tooth profile design adopts a non-zero inclination angle composite cycloid, so that the meshing area is expanded by more than 30%, and the maximum stress of the flexible gear is reduced by 22.75% in combination with a linear modification method and a finite element modification method. In addition, through a multi-physical field simulation verification system (including static deformation, dynamic contact and fatigue life prediction) and a neural network optimization tooth shape parameter, the transmission performance is remarkably improved. According to the method, the torsional rigidity can be improved by 66%, and the transmission error is controlled within a high-precision range.

A chainring assembly includes a chainring carrier adapted to be coupled to a crank arm. The chainring carrier is rotatable about a rotation axis and includes an outer periphery having carrier threads. A chainring structure includes an inner periphery having chainring threads and an outer periphery comprising a plurality of teeth. The inner periphery of the chainring structure is threadably engaged with the outer periphery of the chainring carrier. In one embodiment, a power meter device includes a body having a torque input section and a torque output section, with the torque output section including an outer periphery having threads adapted to be coupled to a chainring structure.

The invention discloses a saw chain guide plate lubricating system which comprises an integrally-formed guide plate body and is characterized in that a driven supporting structure is arranged at one end of the guide plate body, a rotating structure is installed on the driven supporting structure, and a transmission wheel is installed on the rotating structure; a saw chain guide groove is formed in the side face of the guide plate body. The guide plate body and the driven supporting structure are provided with an oil conveying channel, one end of the oil conveying channel is connected with an oil supply unit of the lumbering equipment, and the other end of the oil conveying channel makes contact with the rotating structure. Through the arrangement of the oil conveying channel, the service life of the driven end rotating structure is prolonged, the part, making contact with a tree, of the saw chain can be lubricated, and meanwhile the utilization rate of lubricating oil can be increased.

The present invention relates to the technical field of gear designs. Particularly disclosed are a spur arc gear engagement pair, and a design method. The spur arc gear engagement pair comprises two spur gears engaging with each other, wherein the two spur gears are spur arc gears, and the contact mode of the two spur arc gears is point contact. The design method comprises the following steps: first, determining a virtual auxiliary involute gear; then, selecting a smooth curve on the virtual auxiliary involute gear to serve as an engagement trajectory line Γ1; next, by means of coordinate transformation, solving a pairing engagement curve Γ2 engaging with the engagement trajectory line Γ1; next, by means of sweeping a normal section tooth profile Γ2(t2) along the pairing engagement curve Γ2, constructing a tooth surface Σ2 of a spur arc gear II; and by means of sweeping a normal section tooth profile Γ1(t1) along the engagement trajectory line Γ1, constructing a tooth surface Σ1 of a spur arc gear I. The present solution solves the problem in the prior art of arc gears failing to achieve spur engagement; and the designed gear pair has a low sliding rate and has adaptability to axis errors and center distance changes.

Drive unit for a vehicle that can be operated by muscle power and / or motor power, in particular an electric bicycle, eBike, pedelec or S-Pedelec, comprising a rotor, a rotor shaft, a first bearing and at least one further bearing, and a shaft, wherein the drive unit has at least a single-stage worm gear or worm gear drive, wherein a worm is non-rotatably connected to the rotor shaft and has at least one helical thread, and a worm wheel which is non-rotatably connected to the shaft and is in mesh with the worm.

A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

The present invention relates to an arrangement (A) of a drive wheel (DW) for an endless track (E) of a tracked vehicle (V). The drive wheel (DW) comprises a hub member (H) and a drive sprocket member (S1, S2) attached to the hub member (H). Said drive sprocket member (S1, S2) comprises a ring shaped drive sprocket (10) having a set of teeth (12) arranged around the circumference of said drive sprocket (10). Said drive sprocket (10) is configured to engage with said endless track (E). Said drive sprocket member (S1, S2) further comprises a support member (20) for said drive sprocket (10). Said drive sprocket (10) is divided into at least two arc shaped drive sprocket parts (10A, 10B). Each drive sprocket part (10A, 10B), in a non engaged state of a drive sprocket part with respect to said endless track, is configured to be exchangeable. Said arrangement (A) comprises a guiding configuration (G1, G2) comprising a first guiding member (G1) circumferentially distributed around the support member (20) and a second guiding member (G2) circumferentially distributed around the respective drive sprocket part (10A, 10B) for facilitating reassembling the drive sprocket (10). The present invention also relates to a tracked vehicle.

The embodiment of the invention discloses a harmonic reducer, a mechanical arm and cleaning equipment, the harmonic reducer comprises a flexible gear, a connecting part and an output part, in the manufacturing process of the harmonic reducer, the protruding connecting part is formed on the surface of the flexible gear, production and machining of the flexible gear and the connecting part are more convenient, the machining precision can be improved, and the machining efficiency is improved. For example, the flexible gear and the connecting part which are integrally formed can be manufactured through an injection molding process, a connecting hole process in the traditional technology is replaced, the probability of deformation of the connecting part can be reduced or eradicated, and then the transmission precision of the harmonic reducer is guaranteed. In the assembling process, the output part is connected with the flexible gear through the connecting part, the connecting part protrudes out of the surface of the flexible gear, at least part of the connecting part can stretch into the output part, or at least part of components of the output part are arranged on the connecting part in a sleeving mode, and therefore rapid assembling of the output part and the connecting part can be facilitated; and the output part is conveniently connected with the flexible gear.

A transmission device for a motor vehicle includes a gearwheel space, a gearwheel received in the gearwheel space and having at least one oil bunker for supplying oil for lubricating the gearwheel, and at least one oil return device. The oil is conveyable from the oil bunker into the gearwheel space. At least one oil sump for catching the oil is arranged in the gearwheel space. At least one partition is arranged between the oil bunker and the oil sump for separating the oil sump from the oil bunker. The at least one oil return device includes at least one wiper for wiping the oil from the gearwheel and at least one outlet for removing the wiped oil into the oil bunker. The wiper and the outlet are arranged on different sides of the at least one partition and are connected by at least one fluid connection.

A pulley device according to the present disclosure includes a loop string including a ring-shaped loop portion formed in an upper portion and first and second string extension portions extending downward, a loop fixing stopper through which the first and second string extension portions pass and to which a loop portion is connected to form a knot, and a pulley to which the first and second string extension portions are connected and which includes a pulley wheel.

An optimization method of the tooth profile modification of the cycloid gear is provided, and optimizes the method of equidistant-distance combination modification of the tooth profile of the cycloid gear, with the help of multi-objective optimization algorithm based on pressure angle of tooth profile, curvature radius and contact performance, the working range of the tooth profile modification of the cycloid gear is determined, and the optimal modification amount of the cycloid pin gear planetary reducer is determined, the tooth profile of the cycloid gear is modified to compensate these errors, ensure that it has reasonable tooth side clearance, lubrication and assembly, and improve the transmission efficiency and bearing capacity of the cycloid pin gear planetary reducer. The optimization method has the effects of high precision transmission, low noise operation, improving transmission efficiency, prolonging fatigue life and reducing space occupation.

The embodiment of the utility model discloses a harmonic reducer, a mechanical arm and cleaning equipment, the harmonic reducer comprises a wave generator and an input assembly, and a first cavity is formed in an input shaft of the input assembly, so that in the working process of the harmonic reducer, power can be input through the input shaft, and the input shaft drives the wave generator to rotate. When a cable or a pipeline needs to be led into the harmonic reducer, the cable or the pipeline can utilize the first cavity in the input shaft, the cable or the pipeline can penetrate through the input shaft through the first cavity to complete cable arrangement, on the basis of full utilization of the internal space of the input assembly, layout of the cable and the pipeline is more convenient, and the practicability is high. The size of the harmonic reducer is reduced, the structure of the harmonic reducer is more compact, meanwhile, a cable or a pipeline penetrates through the input shaft with the first cavity, winding can be avoided, the structure of the harmonic reducer can be simplified, the cost of the harmonic reducer is reduced, and the working reliability of the harmonic reducer is improved.

The invention discloses a mining chain wheel repaired based on an intelligent optical tracking technology and a technology. The repairing technology comprises the following steps that S1, an optical scanning device is used for scanning a worn chain wheel, surface point cloud data of the chain wheel are obtained, and an actual three-dimensional model of the chain wheel to be repaired is generated according to the point cloud data; s2, Boolean operation is carried out on the actual three-dimensional model generated in the step S1 and a preset chain wheel standard digital model, so that a relative wear model only representing a chain nest wear area is extracted; s3, based on the relative wear model, automatically generating a robot welding path for filling a wear area, and generating a repair program; and S4, the welding robot is controlled to execute the repairing program generated in the step S3, and self-adaptive surfacing repairing is conducted on the abrasion area of the chain nest. According to the method, through a digital closed loop of accurate scanning, model comparison, automatic programming and robot repairing, accurate repairing of irregular abrasion of each chain nest is achieved, the repairing quality is improved, and the maintenance period is shortened.

Provided is a mower system that includes an idler pulley, a deck drive pulley coupled to a drive shaft of a mower motor and an intermediate pulley coupled to the mower and positioned to be engaged by a portion of the deck drive belt spanning between the deck drive pulley and the idler pulley. The deck drive pulley located a first distance from the idler pulley and the intermediate pulley located a second distance from the idler pulley, with the second distance being greater than the first distance.

Systems and methods for operation and assembly of a helical drive are provided. A helical drive includes a discrete roller assembly-based roller worm including a body portion and a plurality of discrete roller assemblies disposed in a first helical pattern about the body portion. The helical drive includes an engagement structure including a primary axis, wherein the roller worm is configured to rotate about a central axis to cause linear translation of the roller worm along a length of the engagement structure and the primary axis. The engagement structure includes a plurality of tracks disposed along the length of the engagement structure, where each of the tracks is configured to receive at least one of the roller assemblies during the rotation of the roller worm.

The embodiment of the utility model discloses a harmonic reducer, a mechanical arm and cleaning equipment, the harmonic reducer comprises a flexible gear, a connecting part and an output part, in the manufacturing process of the harmonic reducer, the protruding connecting part is formed on the surface of the flexible gear, production and machining of the flexible gear and the connecting part are more convenient, the machining precision can be improved, and the machining efficiency is improved. For example, the flexible gear and the connecting part which are integrally formed can be manufactured through an injection molding process, a connecting hole process in the traditional technology is replaced, the probability of deformation of the connecting part can be reduced or eradicated, and then the transmission precision of the harmonic reducer is guaranteed. In the assembling process, the output part is connected with the flexible gear through the connecting part, the connecting part protrudes out of the surface of the flexible gear, at least part of the connecting part can stretch into the output part, or at least part of components of the output part are arranged on the connecting part in a sleeving mode, and therefore rapid assembling of the output part and the connecting part can be facilitated; and the output part is conveniently connected with the flexible gear.

A sprocket system including a sprocket assembled from multiple disc sprockets coaxially aligned and secured together to provide a desired axial width for the sprocket is described. In some embodiments, the sprocket described herein is a hub-less sprocket.

An adjustment drive that includes an electric motor, a transmission having a self-locking transmission stage, an output, and a safety clutch having a free travel. The safety clutch is operable to separate, in an event of an excessive external torque introduced via the output, the self-locking transmission stage from the external torque. The adjustment drive also includes at least one compressible damping element arranged in the free travel to enable haptics of an external movement demand introduced via the output.

Provided is a herringbone planetary gear transmission device with a constant meshing characteristics constructed tooth pair, which relates to the technical field of gear transmission. The transmission device includes a sun gear with a constructed tooth pair, a planetary gear with a constructed tooth pair and an internal gear with a constructed tooth pair based on conjugate curves. Normal tooth profiles of the gears with a constructed tooth pair in the present disclosure are all the same combined curve and can be machined by using the same cutter. A common normal at an inflection point or a tangent point of the curve passes through a pitch point of a meshing gear pair, and a sliding ratio of the meshing gear pair is adjusted according to an adjusted position of the inflection point or the tangent point. A contact ratio of the meshing gear pair is designed as an integer.

The invention discloses a flexible gear with a stable structure, and belongs to the technical field of harmonic reducers. The flexible gear comprises a tubular cylinder with a first end and a second end, and a wave generator enters the cylinder from the first end; the tooth part is arranged on the periphery of the cylinder body, the tooth part comprises a plurality of outer teeth, the outer teeth are evenly distributed in the circumferential direction of the cylinder body, each outer tooth is provided with a first transition inclined face, each first transition inclined face is provided with a low end and a high end, and the low end of each first transition inclined face is flush with the first end of the cylinder body. The technical problem that an existing flexible gear structure is low in stability is solved.

The invention relates to a planetary gear (10) for a planetary transmission (1), wherein a gear ring (12) of the planetary gear (10) has such elasticity that the gear ring (12) of the planetary gear (10) is designed to be radially spring-loaded simultaneously by a ring gear (14) and a sun gear (16), wherein the gear ring (12) of the planetary gear (10) is designed to form a double-flank contact with the ring gear (14) and the sun gear (16) in response to the radial spring-loading. The invention further relates to a steering gear for a steering system of a motor vehicle.

The invention discloses an L-shaped flexible inner gear ring structure in a planetary transmission system, and relates to the technical field of planetary gear transmission systems. The extension flexible ring is formed by extending the lower end face of the inner gear ring body in the vertical direction, the extension flexible ring has the adjustable vertical length and the adjustable radial thickness, and the overall flexibility of the gear ring structure is adjusted by changing the length and the thickness of the extension flexible ring. According to the L-shaped flexible inner gear ring structure in the planetary transmission system, due to the fact that the extension structure is designed on the lower end face of the inner gear ring body, the overall flexibility of the gear ring structure can be improved by changing the extension length and thickness, and the flexibility of the structure is greatly improved; the non-uniformity, caused by machining errors and installation errors of system components, of transmission torque of all branches of the system can be compensated, and the uniform load performance of the planetary transmission system can be improved.

An electromechanical power steering system for a vehicle may include a worm that can be driven rotationally about a drive axis by an electric motor, that interacts with a worm gear that is coupled to a steering shaft, and that is mounted such that it can be rotated about the drive axis in a bearing that is held in a holder. The holder may be movable relative to the worm gear. To make a decreased development of noise possible, the holder has a core element that is made from a core material and is connected to at least one contact element. The contact element may be made from a soft material that can be deformed elastically more easily and is softer relative to the core material.

The invention discloses a compound gear, a speed reduction transmission assembly and an aircraft, and relates to the field of transmission devices of aircrafts. The compound gear comprises a web plate, the web plate is of a laminated plate structure integrally formed by die pressing of a continuous fiber reinforced composite material, and a center hole is formed in the center of the web plate; the hub is arranged at the center hole in a matched mode, and the hub is a metal piece; the gear ring is connected to the web plate, the gear ring and the hub are coaxially arranged, meshing teeth distributed at intervals in the circumferential direction are arranged on the gear ring, and the gear ring is a metal piece. According to the compound gear disclosed by the embodiment of the invention, the web plate between the gear ring and the hub adopts the laminated plate structure integrally molded by the continuous fiber reinforced composite material through mould pressing, so that high strength and durability are kept while the weight is reduced, and the flight burden can be reduced.

The utility model discloses a multi-layer precision gear which comprises a multi-layer precision gear, the multi-layer precision gear is formed by sequentially arranging a small gear, a middle gear and a large gear, limiting pins are welded to the two ends of the side, close to the large gear, of the small gear and the two ends of the side, close to the large gear, of the middle gear, and pin grooves are formed in the two ends of the interior of the middle gear and the two ends of the interior of the large gear in a penetrating mode. A fixing assembly is arranged on the outer side of the multi-layer precision gear and comprises a long screw rod, and the outer side of the long screw rod is sleeved with a nut. The small gear, the middle gear and the large gear are sequentially arranged and fixed to form the complete multi-layer precision gear, the inner diameters of the shaft holes in the small gear, the middle gear and the large gear are the same, the positions of the threaded grooves are the same, and the small gear, the middle gear and the large gear can be used independently after being combined and disassembled at will.

The utility model relates to a three-position clutch switching device which comprises an input shaft, clutch outer teeth, a manual chain wheel, clutch inner teeth, a clutch sleeve, a pneumatic chain wheel, a seat frame and a switching shifting mechanism. The input shaft is fixedly connected with clutch outer teeth, two sides of the clutch outer teeth are respectively connected with a manual chain wheel and a pneumatic chain wheel through bearings, clutch outer teeth are externally provided with clutch inner teeth and a clutch sleeve, one ends of the manual chain wheel and the pneumatic chain wheel are provided with chain wheels, and the other ends of the manual chain wheel and the pneumatic chain wheel are provided with external splines matched with the clutch inner teeth; and a three-position clutch switching shifting mechanism is arranged between the clutch sleeve and the seat frame. The clutch switching device for switching the three kinds of power is used for switching the three kinds of power of a special gate device. The special gate device is driven by the motor normally, and the special gate device can be opened and closed emergently by a manual or pneumatic emergency operating mechanism in case of power failure, so that the safety of the special gate device is improved, the structure is compact, and the operation is simple.

The utility model discloses a silent synchronous pulley, which belongs to the technical field of mechanical transmission structures, and comprises a pulley main body, uniformly distributed gear teeth are arranged on the pulley main body, flange structures are arranged at two axial ends of the pulley main body, and a first bump is arranged on one side, facing the gear teeth, of each flange. According to the scheme, the flange structures are arranged at the two axial ends of the belt wheel body and used for directly abutting against the two side edges of the synchronous belt, the flanges are fixedly connected with the belt wheel body, the first protruding blocks face the middle position of the belt wheel body and make contact with the synchronous belt, and the protruding structures of the first protruding blocks enable the contact area of the first protruding blocks and the side edges of the synchronous belt to be reduced; in other words, the contact area of the synchronous belt and the flanges is reduced, so that when the synchronous belt and the belt wheel body rotate in a matched mode, the friction force between the synchronous belt and the flanges is reduced, and meanwhile the noise reduction effect is achieved; in addition, due to the fact that friction force is reduced, heat generated by the synchronous belt is reduced, and the service life of the synchronous belt is prolonged.