108results about "Mechanical power transmission" patented technology

A method for controlling operation of a generator (5) for a wind turbine is disclosed. A measure for a rotational speed of the generator (5), and a measure for vibrations originating from gear tooth meshing of a gearbox (3) of the wind turbine, at the rotational speed of the generator (5), and at least one amplitude of a harmonic in the gearbox vibrations is determined. An initial phase angle and an initial amplitude are selected, based on the rotational speed of the generator (5), on initial characteristics of the wind turbine, and on the at least one amplitude of the harmonic in the gearbox vibrations. An optimization process is performed, including adjusting the initial phase angle and the initial amplitude in order to obtain a minimum in amplitude of a resultant vibration of vibrations originating from the gearbox (3) and vibrations originating from the generator (5), corresponding to the harmonic in the gearbox vibrations, thereby obtaining an adjusted phase angle and an adjusted amplitude. A torque modulating signal for the generator (5), specifying the adjusted phase angle and the adjusted amplitude, is generated and injected into the generator (5). Information regarding residual vibrations at the minimised resultant vibration is derived.

The application relates to a yaw gear engagement adjustment method of a wind turbine, which comprises the following steps: measuring the engagement area and the gear gap between a yaw input gear and a driven gear; according to the engagement area and the gear gap, calculating the adjustment range of the axis rotation and the adjustment range of the axis movement of the yaw input gear; installing the inclined washer on the mounting surface of the frame; moving the mounting axis of the yaw input gear by rotating the flange plate; locking the bolt on the frame; and detecting the yaw input gear and the driven gear again. The yaw gear engagement adjustment method of the wind turbine can realize the rotation adjustment of the axis direction of the yaw input gear by adjusting and installing the inclined washer at different positions, can realize the movement adjustment of the axis direction of the yaw input gear by rotating the flange plate of the yaw input gear, and can greatly reduce the trial installation times and improve the maintenance efficiency by the cooperation of the two directions.

The invention relates to a drive assembly (101) for a wind turbine, comprising a main shaft housing (109), a gearbox (105), and a generator. The drive assembly (101) has a crossbeam (111) and a spring element (113); wherein the crossbeam (111) is rigidly fixed in the main shaft housing (109); and wherein the spring element (113) is tensioned between the crossbeam (111) and a gearbox housing (105) or between the crossbeam (111) and a generator housing.

This utility model discloses a wind power generation device, belonging to the field of wind power generation technology. Specifically, it includes a housing with a sealing cover on top and a fixed cylinder fixedly connected to the bottom. Both ends of the housing are rotatably connected to fan blade shafts, and impellers are fixedly connected to one end of each fan blade shaft outside the housing, with the two impellers rotating in opposite directions. The other end of each fan blade shaft is fixedly connected to a rotating shaft, which is rotatably connected inside the housing via a bearing seat. A power generation mechanism is provided between the opposite ends of the two rotating shafts to convert the rotational mechanical energy of the two rotating shafts into electrical energy. This utility model, by using two oppositely rotating impellers, changes the traditional method of capturing wind power with a single impeller, improving wind power capture efficiency and power generation efficiency. Furthermore, the power generation mechanism simplifies the structure of the device, improves compatibility, and reduces maintenance costs.

This invention relates to the field of wind turbine technology, specifically to a wind turbine main shaft structure. The wind turbine main shaft structure includes a hub, a transmission frame, a main shaft, a nacelle base, a main bearing, and a rear bearing. The hub and transmission frame are respectively connected to both ends of the main shaft. The nacelle base has a main bearing seat and a rear bearing seat at both ends along the axial direction of the main shaft, with the main bearing connected to the main bearing seat and the rear bearing connected to the rear bearing seat. The main shaft is rotatably connected to the nacelle base via the main bearing, and the transmission frame is rotatably connected to the nacelle base via the rear bearing. The transmission frame is used for transmission connection with the generator. This wind turbine main shaft structure reduces the weight and load of the unit components, and the segmented design of the main shaft reduces the difficulty of main shaft machining. The structural installation design of the front and rear bearings improves the rigidity of the entire transmission chain and eliminates the requirement for vibration-damping torque arms in independent shaft transmission chains.

There is described a gear device (1) comprising: - two parallel planetary gears (22) arranged one behind the other along a rotation axis (A) of the gear device (1), each planetary gear comprises a sun gear (24), a ring gear (28) and a set of planet gears (26), the two sets of planet gears (26) are arranged in a common planet gear carrier (30), and the two sun gears (24) are connected to a common rotary shaft (32) along the rotation axis (A) of the gear device (1); - a gear device housing (42) which encircles at least a portion of the two planetary gears (22), where the gear device (1) further comprises an internal torque distributor (43) connected to each of the ring gears (28) and to the gear device housing (42), so that the two ring gears (28) are allowed to twist relative to each other around the rotation axis (A) during use. Also described is a gear assembly (10) comprising two such gear devices (1) as well as a wind turbine comprising a gear device (1) or a gear assembly (10).

This invention discloses a self-circulating wind turbine system, belonging to the field of wind power generation technology. It includes: an air inlet duct module connecting a natural wind source to an air inlet gearbox, with a dust filter at the air inlet; and an air inlet gearbox module employing a continuously variable transmission (CVT) with a planetary gear set structure. The meshing state of the sun gear and planetary carrier is dynamically adjusted via an electromagnetic clutch. This invention generates a self-circulating airflow through a built-in wind turbine, combined with a dual-path variable-speed power generation design, eliminating the dependence of traditional wind power generation on the stability of natural wind. In remote scenarios without an external power grid or in emergency power supply needs, the flowing air within the air inlet and outlet ducts can be used to convert power into electricity via the air inlet and outlet gearboxes, respectively, achieving a dual function of "self-sustaining + external power supply," greatly improving the stability and autonomy of power supply.

A turbine unit (674) captures energy from a fluid flow (244). It includes at least one turbine (100) arranged along a turbine stack axis (454), each turbine (100) having a central portion (102) and blades (104) extending radially and rotating about the central portion (102). Each blade (104) includes at least one airfoil (116) movable between open and closed configurations; in the closed configuration, the airfoil forms a surface oblique to the fluid flow (244) to convert kinetic energy into rotation. A gearbox assembly (979) coupled to the turbine (100) converts rotation into mechanical power and includes an input shaft, gears responsive to a first control signal to vary gear ratio, and an output shaft. At least one sensor (983) generates operational data used by a control system (981). A fluid-flow control element (666) near the turbine (100) regulates fluid flow (244) in response to a second control signal.

The utility model discloses a kind of transmission chain structure and wind turbine unit, including split main shaft axle system, main bearing system, fan hub, cabin elbow and gear box generator system, the split main shaft axle system includes connecting member and input shaft, the front end of the connecting member is connected with fan hub, its rear end is set towards gear box generator system, the input shaft is concentrically arranged at the center of connecting member, its front end is connected with the front end of connecting member, its rear end is extended to the rear and is connected with the front end input shaft of gear box generator system, the main bearing system is arranged at the outside of connecting member, and is rotatably connected with connecting member, the cabin elbow is arranged at the outside of gear box generator system, and its front end is connected with main bearing system. The utility model can effectively solve the problem that the weight of traditional half direct drive transmission chain structure main shaft axle system is heavy, cost is high, deformation is big, transportation is difficult and other problems due to complex stress.

The invention relates to an arrangement with a hollow sun shaft (101), a sun gear, which is connected to the sun shaft (101) in a rotationally fixed manner, and a hollow hub (103), a pitch tube (111) and a sealing arrangement (113, 115, 117, 119, 121, 201). The arrangement also comprises a hollow shaft (105), which is non-rotatably connected to the sun shaft (101) at a first connection point (107) and non-rotatably connected to the hub (103) at a second connection point (109); wherein the second connection point (109) is arranged axially offset from the first connection point (107) in the direction of the sun gear; wherein the pitch tube (111) extends through the sun shaft (101); and wherein the sealing arrangement (113, 115, 117, 119, 121, 201) is arranged in a gap between the pitch tube (111) and the sun shaft (101) and seals the pitch tube (111) and the sun shaft (101) against each other.

An arrangement, including a gearbox housing, a hollow shaft rotatably mounted in the gearbox housing, and a lubrication point located at least partially inside the hollow shaft. The gearbox housing has a ring which encloses a hollow space with an outer circumferential surface of the hollow shaft. The ring has one or more drill holes, each of which opens into the hollow space. The hollow shaft has one or more drill holes, each of which opens into an interior of the hollow shaft and into the hollow space.

Proposed is a seal assembly (101, 201, 301) for a pitch tube (103) of a wind turbine gearbox. The seal assembly (101, 201, 301) has at least one axial shaft sealing ring (111) and at least one circular-ring-shaped counterpart running surface that is rotatable relative to the axial shaft sealing ring (111), wherein the pitch tube (103), the axial shaft sealing ring (111) and the counterpart running surface are oriented coaxially with respect to one another, and wherein at least one sealing lip of the axial shaft sealing ring (111) is braced axially against the counterpart running surface.

The invention relates to a planet carrier (10) comprising a first wall element (20), a second wall element (22), and a planet bolt (12). The planet bolt (12) is designed to rotatably mount a planet gear (14) on it. The wall elements (20, 22) are fastened to one another by at least one clamping device (30). The planet bolt (12) is clamped between the two wall elements (20, 22) by the clamping device (30). Furthermore, the invention relates to a planet gear set for a transmission, wherein the planet gear set comprises at least one such planet carrier (10). The invention also relates to a wind turbine (110).

The invention relates to a drive arrangement for a wind turbine; comprising a planet carrier (101) and a planet gear (107) rotatably mounted in the planet carrier (101). The planet carrier (101) has at least one lubricant line (113a, 113c, 201) which opens into a space between the planet gear (107) and a cheek (103) of the planet carrier (101).

To provide a power generator equipped with a differential gear mechanism.SOLUTION: A power generator is equipped with a first generator generating power by rotating blades, a differential gear mechanism provided between the blades and the first generator, a first ring gear connected to the first generator, and a case rotated around a first shaft integrally with the first ring gear. The differential gear mechanism is equipped with a pinion shaft supporting a pair of pinion gears so as to rotate around a second shaft orthogonal to the first shaft. The differential gear mechanism is equipped with a first drive shaft that has a first side gear at one end and is connected with the blade at the other end. The differential gear mechanism is equipped with a second drive shaft that has a second side gear at one end and is equipped with an interference portion extending toward the pinion shaft at one end. In a direction of a third shaft orthogonal to the first shaft and the second shaft, the interference portion opposes to the pinion shaft.SELECTED DRAWING: Figure 1

A shaft-hub connection (10) for a wind turbine (100), in particular for connecting a rotor shaft (118) to a transmission (110), comprising a shaft element (12) and a hub element (14), which are both arranged concentrically with respect to a longitudinal axis AL, wherein the shaft element (12) and the hub element (14) form at least two toothing pairings (18) formed from planar face toothings (16), and the toothing pairings (18) are arranged in two radial regions (20) running separately from each other. The shaft-hub connection uses the power of a planar face toothing (16) which is attached on the planar side, permits a high torque density and can be guided by an axial assembly movement and simply closed.

The invention relates to a drive train for a wind turbine (10) with a nacelle (20). The drive train comprises a generator (24), a gearbox (22), and a rotor bearing housing (40). At least one bearing (18) for rotatably supporting a rotor shaft (16) can be mounted in the rotor bearing housing (40). The rotor bearing housing (40) is designed for mounting on a machine bed (42) of the nacelle (20). The gearbox (22) is arranged radially inside the generator (24). The gearbox (22) can be mounted on the machine bed (42) via the rotor bearing housing (40). The generator (24) can also be mounted on the machine bed (42) via the rotor bearing housing (40). Furthermore, the invention relates to a wind turbine (10).

The utility model discloses a kind of transmission mechanism of vertical axis wind power generation equipment, it is related to wind power generation technical field, including pillar and mounting plate, the mounting plate is set on the pillar, further include generating mechanism, set on the mounting plate;Auxiliary mechanism, set on the mounting plate, the auxiliary mechanism includes: gear ring, set on the generating mechanism, for linkage work;Mounting, set on the mounting plate, and with the mounting plate fixed connection;Driving motor, set on the mounting, and with the mounting fixed connection;Gear, set on the driving motor output end;Wind inductor, set on the generating mechanism.This device is set by auxiliary mechanism, can in the smaller wind state of this device, auxiliary mechanism can assist blade to rotate, so that this device carries out wind power generation work, let this device can be suitable for more environment.

This invention relates to fastening assemblies and wind power installations. The fastening assembly has a housing (40) in which at least one bearing for rotatably supporting a rotor shaft (16) of a wind power installation (10) is fastened. The housing (40) is configured for fastening to a nacelle (20) of the wind power installation (10). The housing (40) is constructed with at least one axially segmented section. The housing (40) has a first section (60) and a second section (62) fastened together.

This invention relates to a combined torque limiter and a wind turbine coupling having the same, in the field of wind turbine coupling technology. The torque limiter includes a torque limiter flange, at least two pressure plates, at least two friction plates, and multiple friction pads. The pressure plates are connected to the torque limiter flange via the same set of bolts. The friction plates are respectively disposed between the torque limiter flange and adjacent pressure plates, and between adjacent pressure plates. The friction pads are disposed between the flange and the friction plates, and between the pressure plates and the friction plates, forming multiple friction pairs connected in series. Adjacent friction plates are connected by end face splines to transmit torque and provide axial adjustment clearance. The bolts ensure that all friction pairs generate equal positive pressure. This invention uses the same set of bolts to uniformly tighten all friction pairs, ensuring equal force on each friction pad and eliminating pressure superposition. Within the bearing capacity limit of the friction pads, it effectively increases the slippage torque. Furthermore, it has a compact structure, is easy to debug, and operates stably and reliably, making it suitable for high-power wind turbine couplings.

This invention proposes a small, ultra-high-speed coaxial speed increaser and its usage method. It includes an upper housing, within which an input shaft and an output shaft are positioned at the same height. A first-stage sun gear is mounted on the inner end of the input shaft, and a second-stage sun gear is mounted on the inner end of the output shaft. A star-shaped transmission component for transmitting torque is installed between the first and second-stage sun gears. The star-shaped transmission component includes a first transmission gear meshing with the first-stage sun gear and a second transmission gear meshing with the second-stage sun gear. The first and second transmission gears are mounted on a star wheel shaft, which is installed within the upper housing. In this device, the input and output shafts are positioned at the same height within the upper housing, employing a coaxial layout instead of the traditional parallel shaft structure. This reduces the overall size of the speed increaser. The star-shaped transmission component disperses the power input from the input shaft and concentrates it onto the output shaft, reducing the load on a single pair of gears and improving transmission stability and service life.

The invention relates to a planet carrier, a planetary gear set and a wind power installation. The planet carrier has a first wall element (20), a second wall element (22) and planet pegs (12). The planet pegs (12) are configured for rotatably supporting planet wheels (14) thereon. The wall elements (20, 22) are fastened to one another with at least one clamping device (30). The planet pegs (12) are clamped between the two wall elements (20, 22) by the clamping device (30). Furthermore, the invention also relates to a planetary gear set for a transmission, wherein the planetary gear set has at least one such planet carrier (10). Furthermore, the invention also relates to a wind power installation (110).

A gearbox arrangement for a wind turbine includes a gearbox. A shaft of the gearbox is permanently connected to a further shaft of the wind turbine for conjoint rotation by an interlocking connection when the wind turbine is in an assembled state. The gearbox arrangement has a tensioning device which is designed to remove a clearance at least in a sub-region of the interlocking connection.

The application discloses a fan yaw gear cleaning device and relates to the technical field of fan yaw gear cleaning. The cleaning unit comprises a mounting ring, a monitoring assembly, a connecting assembly and a cleaning assembly. The elastic coupling transmission and the self-adaptive fitting structure of the cleaning unit significantly improve the cleaning efficiency and reliability of the yaw gear. The scraper moves synchronously when the yaw system is running. The rack of the scraper and the sliding plate are elastically reset by the spring, ensuring that the scraper always fits the gear slot. Even in the case of tooth surface inclination or oil accumulation, the scraper can maintain clean contact and avoid insufficient scraping force or local overload. In addition, the arc-shaped flow guide design of the arc plate matches the gear slot of the gear disc, forming a closed waste collection cavity, effectively preventing waste diffusion during cleaning and improving collection efficiency.

The present application relates to gear box technical field, especially to wind driven generator speed increasing gear box, lubrication treatment work of gear box, the scheme is through the heat dissipation cylinder arranged vertically, after the impurities in the oil are filtered, the blocked impurities will be deposited and accumulated in the hopper bottom of the heat dissipation cylinder bottom, avoid the problem that too much impurities are accumulated in the filter screen hole and cause blockage;On the other hand, the heat dissipation cylinder is detachably arranged, when the impurities collected in the heat dissipation cylinder need to be cleaned in the later period, the heat dissipation cylinder can be disassembled and cleaned;On this basis, the cleaning assembly is further arranged in the heat dissipation cylinder, that is, the impurities adhered to the filter screen hole on the side wall of the heat dissipation cylinder also has a cleaning effect through the setting of the impurity removing scraper ring and the cleaning auxiliary brush arranged on the outer side surface of the impurity removing scraper ring, to ensure the cleaning effect of the impurities;The bottom end of the hopper bottom is connected with a transparent observation bottle, which provides a judgment for whether to clean the impurities accumulated in the heat dissipation cylinder.