281 results about "Gear system" patented technology

The invention relates to the technical field of furnace shell welding, in particular to a gas industrial furnace shell welding device which integrates a radial circular seam and an axial longitudinal seam, a servo motor drives a planetary gear train through an intermittent sheave, a rotating shell drives a clamped furnace shell to rotate, and radial welding is completed; after a bottom clamping jaw instantly locks a shell, power is switched to a planet carrier, an outer mounting arm drives a driven scraping arm to grind the inner wall while axially moving, welding and grinding synchronization is achieved, a bidirectional pushing seat crank sliding block mechanism continuously rotates in a one-way mode to push and pull the furnace shell in a two-way mode, whole-circle accurate grinding is achieved during resetting, and six sets of air cylinder lead screw adjustable clamping jaws conduct internal and external synchronous supporting. The outer supporting cylinder is prevented from deformation, secondary clamping is not needed in the whole process, butt joint of multiple sections of furnace shells is completed at a time, continuous filling of a longitudinal weld bead can be completed when a circular seam is still in a high-temperature plastic stage through instantaneous switching of clamping and stopping, and the welding quality of a T-shaped connector area is improved.

This technology provides an advantage in reducing manufacturing costs when incorporating pin bodies into eccentric oscillating gear systems. [Solution] The system comprises a crankshaft 14 having an eccentric portion 12, a rocking member 16 that is rocked by the eccentric portion 12, an external gear group 18 that rocks together with the rocking member 16, an internal gear 20 that meshes with the external gear group 18, a first lateral member 22 positioned on one axial side with respect to the rocking member 16, and a pin body 46 that synchronizes the rotational component of the rocking member 16 with the first lateral member 22, with contact being made with a first recess 50 provided in the rocking member 16 and a second recess 52 provided in the first lateral member 22, respectively, wherein the pin body 46 is rotatably provided inside the first recess 50 and the second recess 52, respectively.

The invention discloses a planetary gear dynamic characteristic prediction method. Comprising the following steps: carrying out a planetary gear dynamic transmission test on a real planetary gear test bed, carrying out dynamic modeling on a healthy planetary gear, describing the vibration of a planetary gear system by adopting a fixed coordinate system fixed on a gear ring, providing a dynamic characteristic type, responding to signal analysis, and carrying out dynamic transmission. Comparing and judging the result obtained by analyzing the response signal obtained by the test with the result obtained by analyzing the response signal, and establishing a planetary gear dynamic fault knowledge base system, so as to form digital-analog combination in the field of planetary gear transmission, which is beneficial for identifying the dynamic characteristics of planetary gear transmission. The prediction efficiency of the dynamic characteristics of the planet gear and the prediction precision in the field of fault identification are improved, and the accuracy of dynamic characteristic identification is improved through continuous test and model interaction. And a planetary gear transmission dynamic characteristic knowledge base system is established to realize rapid and accurate analysis of vibration signals captured in tests and projects.

This invention discloses a multi-objective optimization method for modifying the rear gear system of an engine using an attention-integrated mechanism, relating to the fields of engine NVH control and transmission system design technology. The method first constructs a multibody dynamics model of the engine's rear gear system, including idle speed, rated power point, and common operating speed conditions. The common operating speed conditions are selected as the global optimization benchmark, and a genetic algorithm is used to obtain the initial modification parameter combination. Then, an attention-integrated mechanism is introduced, dynamically and iteratively adjusting the weight coefficients of each operating condition based on the positive or negative state of the error improvement value, and performing a secondary verification of the initial modification parameters. If the weighted total improvement value after iteration is less than zero, negative screening is performed to eliminate the affected components. Finally, the optimization effect is verified by establishing a "dynamic force-vibration-noise" simulation chain. This invention effectively resolves the physical conflict between idling knocking and high-speed whistling by constructing a nonlinear decision model of "dynamic weight allocation + negative screening of operating conditions," achieving robust improvement in the NVH performance of the engine gear system across the entire operating range.

The invention discloses a washing machine clutch movement automatic oil injection and spin riveting detection all-in-one machine which comprises a brake wheel and reduction gear train conveying device, a first material moving device, an oil injection device, a clutch shaft and input shaft conveying and material moving device, a second material moving device, a rotary riveting device, a turnover device, a detection device and a controller. The control device is electrically connected with the brake wheel and reduction gear train conveying device, the first material moving device, the oil injection device, the clutch shaft and input shaft conveying and material moving device, the rotary riveting device, the second material moving device, the turnover device and the detection device. The automatic riveting machine has the following advantages that under the control of the controller, the brake wheel and reduction gear train conveying device, the first material moving device, the oil injection device, the clutch shaft and input shaft conveying and material moving device, the rotary riveting device, the second material moving device, the turnover device and the detection device are matched to automatically complete oil injection, spin riveting and detection of the clutch core.

A drive for a wheel-driven vehicle, includes a planetary gear system which includes a sun gear, a ring gear, a planet carrier, and planet gears carried by the planet carrier and meshing with the sun gear and the ring gear. The drive includes an electric motor for driving the sun gear and a wheel which is non-rotatably connected to the ring gear. The drive further includes an electromechanical brake for braking the sun gear and / or a drive shaft of the electric motor. The sun gear is arranged between the brake and the electric motor and / or the brake is being accommodated by an axial cut-out of the planetary gear system.

This invention discloses a nonlinear dynamic modeling method for crack evolution in a helical gear transmission system for vehicles, which includes the following steps: (1) establishing a calculation formula for meshing stiffness of the helical gear pair under cracked conditions using the slice integration method and the potential energy method; (2) establishing an equivalent circuit model of the motor by combining the principles of circuit theory and magnetic circuit theory with coordinate transformation relationship; (3) building an electromechanical coupling model of the motor-gear system based on the mechanical relationship between the motor and the gear transmission system; (4) establishing a model of the electromechanical coupling helical gear transmission system for vehicles and solving the influence mechanism of crack evolution of helical gears on the dynamic characteristics of the electromechanical coupling helical gear transmission system for vehicles; the beneficial effect is that this invention establishes a nonlinear fault dynamic model of the electromechanical coupling transmission system for new energy vehicles, which is of great significance for the design, optimization and life prediction of the helical gear transmission system for new energy vehicles.

The application relates to the technical field of cable cutting, and discloses a cutting device for a cable copper core, which comprises a protective shell, a guide sleeve and a rotating seat rotatably connected to the guide sleeve, two guide blocks are symmetrically and slidably connected to the rotating seat in the radial direction, and a cutting disc is rotatably installed on the guide blocks, the core lies in that the rotating seat and the cutting disc are driven to revolve by the rotating assembly, the two guide blocks are synchronously and radially driven to move by the radial movement mechanism, and the driving mechanism utilizes a set of space connecting rod gear systems to ensure that the two cutting discs can keep stable synchronous reverse rotation during the radial movement and revolution of the cutting disc, the cutting device adopts the surrounding cutting by combining the reverse rotation of the double cutting discs with the revolution, replaces the traditional shearing, effectively solves the technical problems of cable cutting deformation, burr and cable torsion during cutting, the structure design is ingenious, the transmission is reliable, the anti-collision knife function is possessed, and the cutting quality and operation safety are remarkably improved.

The invention relates to the technical field of stirring paddles, in particular to a uniform mixing bioreactor stirring paddle which comprises a column body, the rotating shaft is rotationally connected into the column body; through the innovative composite design of a double-layer differential transmission mechanism and vibration stirring, three-dimensional chaotic mixing is realized, and the mixing efficiency and quality are remarkably improved; the upper-layer first rotating mechanism drives a plurality of first stirring paddles to rotate at a set speed through a gear train formed by a first gear ring, a first gear and a second gear ring; the second rotating mechanism at the lower layer drives a second stirring paddle through another independent gear system, slides in a corrugated groove with a specific angle through a T-shaped block, and generates periodic radial vibration in combination with an elastic component; the rotation-vibration composite motion breaks the flow field symmetry of traditional one-way stirring, can effectively eliminate a mixing dead zone, enables nutrient substances, dissolved oxygen and cells to be highly uniformly distributed, and is especially suitable for a high-density and high-viscosity culture system.

Aircraft landing gear system (100, 200, 300), comprising actuators associated with the landing gear and supplied with pressurized hydraulic fluid by a hydraulic circuit (10; 15), including at least hatch and landing gear attachment boxes (106, 109, 206, 209, 306, 309), the aircraft comprising emergency extension means (20) capable of ensuring the release of the hatches and landing gear to cause the landing gear to extend under the effect of gravity in the event of failure of the hydraulic circuit. According to the invention, the emergency extension means comprise a pyrotechnic device (50) adapted to generate, in a controlled manner, pressurized gas acting on a first face of a piston (40) sliding with a seal in a chamber (30) such that a second face of the piston, in contact with the hydraulic fluid, transmits the pressure of the gas thus produced to at least the attachment boxes via the hydraulic fluid. FIGURE IN ABRIDGED FORM: Fig. 2

The present invention provides a rotating device and a gear device that can reliably connect a rotating body and a race, and that can simplify and miniaturize the bearing structure. [Solution] The reduction gear of the embodiment comprises a case 2 and a carrier 3, and a main bearing 6 that supports the case 2 and the carrier 3 so as to be rotatable relative to each other. The main bearing 6 comprises an outer race 31 and an inner race 32, and rolling elements 33. At least one of the case 2 or the carrier 3 is cast with either the outer race 31 or the inner race 32, and an intermediate layer 50 is formed between the first race joining surface 32c and the second race joining surface 32e and the first substrate joining surface 40a and the second substrate joining surface 40b.

A vehicle seat adjustment mechanism includes a first component and a second component that is movable relative to the first component. A drive mechanism is drivingly connected to the second component for moving the second component relative to the first component. The drive mechanism includes a drive motor drivingly connected to a first gear member having conical involute teeth. A second gear member includes conical involute teeth in meshing engagement with the conical involute teeth of the first gear member. The conical involute teeth have a tapered tooth thickness, a tapered root and a tapered outside diameter.

The application discloses a kind of water bottom waste liquid self-adaptive collection device and waste liquid collection method, belong to environmental protection technical field.The application includes with the cover opening device and cover closing device of waste liquid recovery barrel cover connection;Utilize the pressure and density variation of water to start cover opening device and cover closing device, realize the automatic opening and closing of waste liquid recovery barrel cover.The application is realized automatic control by spring mechanism and float action in working box.The application utilizes the pressure and waste liquid density variation of water, automatically adjusts spring pressure, to drive gear system to perform cover opening and closing operation, the design of eccentric hole ensures the unidirectionality and stability of gear movement, avoids the possibility of reverse movement or misoperation, enhances the reliability of device in complex underwater environment.

A double helical gear (1) for a hydraulic gear device (2) having a tooth profile (4) that does not cause locking, configured to be coupled to a support shaft (5) to form a drive gear or driven gear of the hydraulic device, comprising a plurality of teeth (6) extending longitudinally or axially with a variable helix angle in a compound function, wherein the tooth profile (4) maintains shape continuity in each cross section, and each tooth (6) in the longitudinal direction is divided into five zones: a starting zone (A), a proximal intermediate zone (B), a central zone (C), a distal intermediate zone (D), and a terminal zone (E), wherein the starting zone (A), central zone (C), and terminal zone (E) have a variable helix angle (ψ), and the proximal intermediate zone (B) and distal intermediate zone (D) have a constant helix angle (ψ).

The wind power generation gearbox based on the three-stage planetary gear train comprises a gearbox body, a first planet carrier, a second planet carrier and a third planet carrier are sequentially arranged in the gearbox body from the input end to the output end, and a hollow pipe is arranged to penetrate through the first planet carrier, the second planet carrier and the third planet carrier; a first planetary gear train is arranged in the first planetary carrier and is in meshed connection with a second planetary carrier, a second planetary gear train is arranged in the second planetary carrier and is in meshed connection with a third planetary carrier, a third planetary gear train is arranged in the third planetary carrier and is in meshed connection with an output flange serving as an output end, and the output flange is in meshed connection with the first planetary gear train and the second planetary gear train. The first planet carrier comprises a planet carrier connecting shaft serving as an input end, and the planet carrier connecting shaft and the output flange both penetrate through the gear box body.

An accessory drive system for a turbine engine includes a first input shaft that is coupled to a first engine drive shaft, a constant speed drive that is driven at an input speed by the first input shaft that varies, the constant speed drive includes an output that rotates at a constant speed independent of the input speed, an accessory gearbox that includes a first gear system that is driven by the output from the constant speed drive, and a first accessory component that is mounted to the accessory gearbox and driven by the gear system.

The present application relates to a transmission for a vehicle, in particular a transmission (200) for a vehicle providing at least four gear ratios, the transmission comprising:-an input member (201) drivingly connected to a prime mover (10), such as an electric motor; -a planetary gear system (210) comprising a first sun gear (211), a second sun gear (212), a single ring gear (213) and a single planet carrier (214) carrying a first set of planet gears (215) in meshing engagement with the first sun gear and a second set of planet gears (216) in meshing engagement with the second sun gear, wherein the ring gear is selectively engageable with one of the input member and a stationary member (220) of the transmission, and wherein both the first sun gear and the second sun gear are selectively engageable with the input member, and wherein at least one of the first sun gear and the second sun gear is selectively engageable with the fixed member.

The invention provides a digital twin tooth surface wear degradation morphology prediction method, which is applied to the field of gear transmission systems, and comprises the following steps: constructing a physical information neural network wear depth prediction model constrained by a gear transient wear model, obtaining a model for predicting a new tooth profile after the gear is worn and a rough morphology model for predicting tooth surface evolution after the gear is worn; a gear wear time-varying meshing stiffness calculation model is constructed, and the corrected wear gear time-varying meshing stiffness is obtained; in combination with a lumped parameter method, a gear system dynamic model is constructed, and a gear wear degradation transmission system simulation dynamic response is obtained; according to the method, the gear bearing supporting rigidity and damping are calibrated, the tooth surface dynamic meshing force is corrected, and finally the corrected tooth surface abrasion depth and the corrected tooth profile and tooth surface morphology are obtained. And interaction of actually measured vibration signals and tooth surface morphology virtual detection in gear box wear degradation is realized.

A radial baffle 21 in an electric vehicle gear system, mounted stationary relative to a gear 5 with a fluid flow outlet directed toward the edge of the gear, such that when the system is in use fluid

The mechanism includes a magnetic gear (2), which comprises a first gear (6A), a second gear (6B), and a third gear (6C). The first gear is provided with permanent magnet poles (7) arranged to form magnetized teeth of a first magnetic gear system (8). The second and third gears are provided with teeth made of soft ferromagnetic material that define a second magnetic gear system (10) and a third magnetic gear system (12), respectively. The second magnetic gear system (10) and the third magnetic gear system (12) each have a greater number of teeth than the first magnetic gear system (8) and are magnetically coupled to the first magnetic gear system. With the magnetic flux provided by the magnetized teeth of the first gear system and because the teeth of the second magnetic gear system are magnetically separated from each other, the second magnetic gear system (10) is directly coupled to the first magnetic gear system on the one hand and directly coupled to the third magnetic gear system on the other hand.

A drive tracking system including a heliostat structure, a power electronic converter, and a tracking controller. The heliostat structure includes a heliostat support frame, a plurality of linear actuators, and a heliostat facet. A first end of each of the plurality of linear actuators is connected to an underside of the heliostat facet and a second end of each of the plurality of linear actuators is connected to the heliostat support frame. The power electronic converter includes a plurality of direct current (DC) chopper converters mechanically coupled to the plurality of linear actuators via a worm gear system. The worm gear system includes a plurality of worm gears and a plurality of linear screws. The tracking controller includes a three-axis gyroscopic sensor and a microcontroller. The microcontroller has instructions to control the DC choppers based on data provided by the three-axis gyroscopic sensor.

This utility model belongs to the field of vehicle drive technology, and in particular relates to a multi-input / output coupling mechanism for a fuel cell hybrid tractor. The structure includes a fuel cell (24), a DC / DC unidirectional converter (25), a second motor (26), a planetary gear system, a hydraulic system, a drive axle (30), a brake (18), a clutch (5), a first motor (22), and a power battery (23). This utility model combines a continuously variable transmission (CVT) device and a power coupling device. The CVT device and the power coupling device share a planetary gear system. The planetary gear system can both change speed and achieve power coupling, reducing transmission links, saving manufacturing costs, saving vehicle space, and improving energy utilization.

The parcel ejector mechanism in a multi-compartment transmitter-receiver comprises a motor, a push-out bumper, a starting position sensor (10), an end position sensor (11), a door open sensor, and a light barrier sensor (6). The motor has a gear system. The mechanism is equipped with at least two gears, a toothed belt, and at least two screws (4) mounted at at least one end. A number of nuts corresponding to the number of screws (4) are attached to the push-out bumper. The motor is equipped with overcurrent protection.

A pedal propelled vehicle driveline (1) comprises: a crankshaft (3); a multi-speed gear system (4) having a gear input shaft and a gear output shaft (4a, 4b); and-an electric motor (5) having a motor output shaft (5a), the motor output shaft (5a) being arranged perpendicular to the crankshaft (3) and the gear input shaft and the gear output shafts (4a, 4b).

The invention discloses a five-axis mobile transfer robot based on differential mechanism integration and a control method, and belongs to the technical field of robots. The robot comprises a moving base, a plane moving assembly, a five-axis mechanical arm, a sensing system and a control system. A fourth shaft and a fifth shaft of the five-shaft mechanical arm are integrated through a differential mechanism, a planetary gear train is driven by double motors, pitching and rolling movement of an end effector is synchronously controlled, five driving units are reduced to three while the five-shaft freedom degree is reserved, the manufacturing cost and control complexity are remarkably reduced, and the mechanical arm is suitable for large-scale popularization and application. The sensing system adopts global and local visual cameras to cooperatively work, the global camera carries out coarse positioning on a goods shelf area, the local camera carries out millimeter-level fine correction before grabbing, and the omni-directional movement capability of Mecanum wheels and a portal frame lifting mechanism realize autonomous navigation, accurate grabbing and dynamic obstacle avoidance of the robot. And high-efficiency, low-energy-consumption and high-precision automatic warehousing operation is realized.

The invention relates to a wind turbine (2) comprising a nacelle (8) arranged on top of a tower (12), a rotor comprising a hub (6) and a plurality of blades (4), a main shaft (16) configured to be driven by the rotor about a main axis and supported on the nacelle (8), a generator (28) having a generator rotor and a generator stator, and a gear system (25) arranged to increase the rotational speed between the rotor and the generator rotor. The gear system (25) comprises a stationary ring gear (50), an input member (53) coupled to or driven by the main shaft (16), the input member (53) having a plurality of radially movable tooth segments (52, 63) carried in a guiding slot and engageable at an outer end with the ring gear (50), a central output member (55) within the input member (53), the central output member having an outer eccentric profile acting on and driven by inner ends of the radially movable tooth segments (52, 63), whereby through engagement with the ring gear (50) a rotational movement of the input member (53) drives the radially movable tooth segments (52, 63) and effects a rotation of the central output (55) member.

Provided are a rack guide that can stably support a rack bar and avoid rattling noise occurrence, and a gear system using the same.A rack guide (30) have the following: a rack guide body (31) made of synthetic resin, which has a cylindrical shape with a front end face and has a guide surface (310) formed in the front end face so as to slide on a back (22) of a rack bar (20); supporting portions (32a, 32b) made of synthetic resin, which each protrude beyond an outer circumferential surface (311) of the rack guide body (31) and are movable in a radial direction of the rack guide body (31); and a biasing portions (33a, 33b) provided for each supporting portion (32a, 32b) and made of synthetic resin, which extends circumferentially from both sides (in a circumferential direction of the rack guide body (31)) of the corresponding supporting portion (32a, 32b) and connects to the rack guide body (31) so as to bias the corresponding supporting portion (32a, 32b) outwardly in the radial direction of the rack guide body (31).

A propeller blade pitch control mechanism configured to adjust and control the blade pitch of the blades of a multi-blade propeller simultaneously. The pitch control mechanism may have a pitch plate which is raised or lowered along a liner path along an axial direction using a linear drive, which may be a power screw. The pitch plate is coupled to the blade roots with kinematic links which transfer the linear axial motion of the pitch plate along the propeller spin axis into rotary motion of the propeller blade roots, thereby controlling the pitch of the propeller blades. The propeller blades are also coupled with a ring gear system which can provide redundant drive for a propeller blade. The propeller pitch control mechanism may include one or more springs or gas springs adapted to place the propeller blades in a low drag position in the event of failure of the blade pitch control mechanism.

The utility model relates to the technical field of power generation devices, in particular to a power supply device of a highway tunnel, which comprises a base, and a kinetic energy conversion device, a power transmission device and a power generation device are arranged on the base. The kinetic energy conversion device comprises a sliding shaft, a spring, a fixator and a pressed rod, the fixator is fixedly connected to the top of the base, the two ends of the sliding shaft are welded and fixed into the fixator, and the sliding shaft is sleeved with the bottom end of the pressed rod and the spring; when a vehicle passes, downward pressure is applied to the pressed rod, the pressure is converted into mechanical kinetic energy, and the kinetic energy is subjected to speed regulation through the gear system, is transmitted to the motor system through the transmission device and the direction converter and is finally converted into electric energy to be supplied to tunnel lighting or other power equipment for use. The device can adapt to the low-temperature environment of the cold tunnel, further improves the power generation efficiency through the thermoelectric power generation technology, and has a wide application prospect.