94 results about "Dog clutch" patented technology

A system and method for a hybrid electric axle. The hybrid electric axle system, in one example, includes an engine interface assembly with a one-way clutch that is rotationally coupled to an input shaft and a gear shaft in a gear set that is rotationally coupled to a differential and a dog clutch configured to selectively rotationally couple the input shaft and the gear shaft in the gear set. The hybrid electric axle system further includes an electric drive assembly including a traction motor that is rotationally coupled to a gear train. In the electric axle system, the gear train is rotationally coupled to the differential and the engine interface assembly and the electric drive assembly are packaged in an axle housing.

The invention relates to a planetary gear device (10), comprising: a housing (12); a planet carrier (18) forming a first axis of the planetary gear device (10) and rotatably supported about a main axis of rotation (20), the planet carrier having a pin carrier (30) and planet gear pins (34) on which planet gears (38) are rotatably supported; a dog clutch (42), which has a first dog toothing (44) connected to the planet carrier (18) in a permanently rotationally fixed manner and is designed to connect the planet carrier (18) to another shaft of the planetary gear (10) or to the housing (12) in a rotationally fixed manner; and an oil collecting ring (46) which is designed in one piece together with the first claw toothing (44), the planetary gear arrangement comprising a flat retaining disc (54) which is designed in one piece together with the first claw toothing (44) and which is designed to axially fix the planet gear pins (34).

Control method for managing dog clutch engagement in a vehicle powertrain (1) comprising an internal combustion engine (2), primary (3) and secondary (4) electrical machines, and a dog clutch gearbox having a first primary shaft (5) connected to the engine, a second primary shaft (6) connected to the primary electrical machine, the method comprising: when the target ratio to be engaged is intended to lock the first primary shaft, respectively the second primary shaft, with the secondary shaft in rotation, then a convergence torque is applied by means of the secondary electrical machine, respectively by means of the primary electrical machine, the convergence torque to be applied being determined in subordination to an acceptance of charging and discharging of the battery calculated according to the characteristic(s) of the battery and the power taken or delivered by the electrical machines.Figure from the summary: Fig. 2.

A system (34) for controlling the pitch of a propeller blade (10) of an aircraft turbine engine is disclosed, characterized in that the system comprises: - a cup-shaped portion (58) having an annular wall (58a) extending about an axis (A) intended to set the pitch of the blade, the annular wall (58a) having a lower axial end enclosed by a bottom wall (58b) and an open upper axial end configured such that the root (14) of the blade (10) can be mounted within the cup-shaped portion (58); and - a retaining ring (152) extending about the axis (A) and configured to be mounted around the root (14), the retaining ring (152) being a double-claw clutch ring comprising two annular rows of external claw teeth (154, 156), the two annular rows of external claw teeth constituting an active claw tooth and a safety claw tooth, respectively.

The invention relates to a resilient claw clutch for transmitting a torque M acting about a rotational axis from a drive device to a driven device, having a first engagement element with first claw teeth and a first gap formed by the first claw teeth, and a second engagement element with second claw teeth and a second gap formed by the second claw teeth, the first claw teeth and the second claw teeth together being in a state of mutual engagement and delimiting an accommodation space, into which an elastic pressure body can be inserted such that the elastic pressure body elastically, torque-transmittingly force-couples the first engagement element with the second engagement element, several first claw teeth and several second claw teeth being designed such that several accommodation spaces are arranged in a circumferential direction R X successively in a radial direction R U and in a radial direction R R .

Title of the invention: Transmission shaft coupling system The present invention relates to a transmission shaft coupling system comprising: - a driving shaft (2) including a first drive spline; - a driven shaft (3) coaxial with the driving shaft including a second drive spline; - a dog clutch sleeve (30) including at least a first connecting spline adapted to drive the driving shaft in rotation about a first axis of rotation (X) and a second connecting spline adapted to drive the driven shaft in rotation;- an actuation device (10) comprising an electric motor kinematically linked to a speed reduction device, an output shaft (40) of the speed reduction device rotating about a second axis of rotation (Y), an interface component (20) disposed at the end of the output shaft and arranged to pivot within the dog clutch sleeve, and an elastic damping means (50) acting in torsion about the second axis of rotation (Y) is disposed between the output shaft (40) and the interface component (20) of the actuation device. Abstract figure: Figure 1;

The utility model relates to the technical field of electromagnetic clutches, and discloses a canine tooth type electromagnetic clutch jaw disc integrated with a torsion damper, the canine tooth type electromagnetic clutch jaw disc comprises a damper disc, one side of the damper disc is sequentially provided with a driving disc hub, a wave-shaped spring steel sheet and a canine tooth type jaw disc, the wave-shaped spring steel sheet is arranged at an opening of the driving disc hub, and the canine tooth type jaw disc is arranged on the other side of the damper disc. Fastening mechanisms are arranged in the inner walls of the shock absorber disc, the driving disc hub, the wave-shaped spring steel sheets and the canine tooth type tooth embedding disc, and after the shock absorber disc, the driving disc hub, the shock absorber springs, the wave-shaped spring steel sheets and the canine tooth type tooth embedding disc assembly is assembled, the shock absorber disc, the driving disc hub, the wave-shaped spring steel sheets and the canine tooth type tooth embedding disc are connected in a fastened mode through the fastening mechanisms. Wherein the wave-shaped spring steel sheet can enable the canine tooth type jaw disc to obtain axial elasticity, the clutch joint softness can be improved, the shock absorber spring is assembled in the shock absorber disc, the driving disc hub and the canine tooth type jaw disc, and torsional vibration and impact borne by a transmission system can be reduced.

A dog clutch includes a first clutch member and a second clutch member. The first clutch member is rotatable about an axis and has first teeth spaced apart in a circumferential direction. Each tooth has a first face and a second face with different axial lengths. The second clutch member is rotatable about the axis relative to the first clutch member and has second teeth each having first and second faces with different axial lengths. When the first and second clutch members are in an engaged state in which the first teeth are received in the second pockets and the second teeth are received in the first pockets, the axially longer faces of the first teeth are adjacent to the axially longer faces of the second teeth. The dog clutch can be provided in a differential of a vehicle.

A parking brake device is suitable for being installed in a casing of an electric machine that houses a rotary shaft and at least one rolling bearing for guiding the rotary shaft. The parking brake device includes an annular support suitable for being inserted between the rolling bearing and the casing, an annular sliding gear which is mounted so as to slide on the support between two end positions, which is locked against rotation on the support, and which has dog clutches suitable for engaging a notched wheel coupled to the rotary shaft, and an actuator suitable for moving the sliding gear between its two end positions.

To provide an engagement device which can keep time required for bringing the device into an engaged state from being long while suppressing reduction in durability.SOLUTION: A dog clutch 10 includes a dog ring 20 and a pair of driven gears 30 which can rotate relative to each other about the same axial line CL. A motive force is transferred by bringing a dog tooth 22 provided on the dog ring 20 and a dog tooth 32 provided on the driven gear 30 into an engaged state. In a radial view about the axial line CL, for at least one of the dog tooth 22 and the dog tooth 32, for example the dog tooth 22, a top face 22t and a connection face 22s connecting an engagement face 22k are in an arc shape, and a connection part P1a of the connection face 22s and the engagement face 22k is cornered.SELECTED DRAWING: Figure 2

A jaw clutch having a freewheeling function includes an inner element, the end face of which is provided with pull claws, and an outer element, which radially encloses the inner element at least in part and is provided with push claws on its end face. The pull claws and push claws have oppositely inclined wedge structures, and the inner element and the outer element are axially movable, via a shift claw or a shift pin, with their respective claws, towards a counter element having a sprocket or toothed rim.

The invention discloses a gear position self-learning method, system and equipment of a gear shifting mechanism and a medium, and relates to the technical field of computers.The gear shifting mechanism comprises a reduction gear, a threaded lead screw, a gear shifting fork and a dog-tooth clutch, the reduction gear drives the gear shifting fork through the threaded lead screw to achieve combination and separation of the dog-tooth clutch so as to conduct gear shifting, the method comprises the steps that under the condition that gear position information of a gear shifting mechanism is abnormal, whether the driving state of a target vehicle meets a preset self-learning condition or not is determined; if the self-learning condition is met, the current position of the threaded lead screw is obtained; locked-rotor detection is carried out on the gear shifting mechanism from the current position of the threaded screw rod, and the actual total stroke of the threaded screw rod in the locked-rotor detection process is obtained; if the stroke deviation between the actual total stroke and the preset theoretical total stroke is smaller than or equal to the preset error threshold value, the position information of the actual top dead center and the actual bottom dead center serves as the updated gear position to be stored.

A shift fork for a dog clutch, the shift fork configured to be rotatable about a rotation center axis, the shift fork comprising: a shift fork base including: a shift fork head configured to rotate about the rotation center axis with rotation of the shift fork; the shifting fork control part is opposite to the shifting fork head relative to the rotating central axis, and is used for receiving external force enabling the shifting fork to rotate so as to generate torque around the rotating central axis on the shifting fork; the shifting fork roller support is used for installing at least two rollers which are distributed and installed in a plane perpendicular to the rotating central axis so as to be capable of rotating around a roller axis parallel to the rotating central axis, and the shifting fork roller support and the shifting fork base part are independent parts and are mutually fixed. According to the shifting fork, expected shapes of corresponding different parts in the shifting fork can be easily obtained through two different deformation machining modes of forging and stamping, and therefore the overall manufacturing cost of the shifting fork is reduced.

A test apparatus and a test method for performing a simulation load test on an actuator for a claw clutch, the test apparatus comprising: an actuator mount for receiving and fixing an actuator to be tested; a clutch claw disc simulation member, wherein the clutch claw disc simulation member comprises claw disc teeth; the clutch sleeve simulation piece comprises sleeve teeth which can be matched with the claw disc teeth, and the clutch sleeve simulation piece can be connected with a shifting fork of the actuator to be tested so as to be driven by the shifting fork to move in the tooth clamping direction; and a driving mechanism configured to allow relative movement of the clutch claw disc simulation member and the clutch sleeve simulation member in a rotation simulation direction orthogonal to the tooth engagement direction. According to the test equipment and the test method, a simulation load environment of the to-be-tested actuator can be provided, a real clutch does not need to participate in a test, and the test process is allowed to be better controlled, so that the test efficiency is improved.

The present disclosure relates to a method and a device for actuating a dog clutch (6) of a manual transmission (2) of an electrically driveable vehicle (1), in which at least relative rotational speeds and / or rotational angle positions of a sliding sleeve (7) and of a coupling element (12) relative to each other are determined, in order to avoid a possible tooth-to-tooth position. In the case of a predicted tooth-to-tooth position, control measures are carried out, which change the relative rotational angle position of the sliding sleeve (7) and of the coupling element (12) relative to each other and / or the duration of the movement of the sliding sleeve (7) in such a way that, when an engagement position is reached, delay-free form-fitting meshing of associated sets of dog teeth (10, 13) is carried out.

Provided in the present application are a dog clutch, a differential assembly, and an automobile. The dog clutch comprises a dog clutch body, wherein the outer side of the dog clutch body is provided with first engagement teeth arranged outward in the radial direction, and the inner side of the dog clutch body is provided with second engagement teeth arranged inward in the radial direction. In the present application, the dog clutch comprises the dog clutch body, wherein the outer side of the dog clutch body is provided with the first engagement teeth arranged outward in the radial direction, and the inner side of the dog clutch body is provided with the second engagement teeth arranged inward in the radial direction, such that each of the first engagement teeth and the second engagement teeth can be engaged with or disengaged from one component; on the basis of combinations of the states of the two engagement teeth, switching can be realized between at least three functions. Compared with the prior art where switching can only be realized between two functions, the present application helps greatly improve the integration level and reduce the number of components and weight, thereby facilitating structural arrangement and providing a simple structure and low cost.

Title of the invention: Transmission shaft coupling system The present invention relates to a transmission shaft coupling system (1), comprising: - a driving shaft (2); - a driven shaft (3) coaxial with the driving shaft; - a dog clutch sleeve (30) comprising a spline (33) adapted to drive the driving shaft (2) in rotation about a first axis of rotation (X) and a spline (34) adapted to drive the driven shaft (3) in rotation;- an actuation device (10) comprising an output shaft (12) rotating about a second axis of rotation (Y), the output shaft (12) is arranged to pivot within a receiving housing formed in the dog clutch sleeve, the dog clutch sleeve being able to move axially along the first axis of rotation (X) between a disengaged position and a coupled position when the output shaft pivots through a predetermined angular sector, an elastic damping means (50) being interposed axially along the first axis of rotation (X) between the output shaft (12) and the dog clutch sleeve (30). Abstract figure: Figure 1;

The present invention relates to a system for coupling transmission shafts (1), the system comprising: - a drive shaft; - a driven shaft coaxial with the drive shaft; - a dog clutch sleeve (30) arranged so as to move along a first axis of rotation (X) in order to couple the drive shaft to the driven shaft; - a casing (50) surrounding the drive shaft and the driven shaft, which comprises a casing end (61) through which the drive shaft passes; - an actuating device (10) comprising an interface component (20) inserted into a receiving cavity (31) formed in the dog clutch sleeve, the interface component being arranged so as to axially move the dog clutch sleeve (30) between a first uncoupling end position and a second coupling end position, wherein the casing end (60) comprises a lubricating fluid collecting portion (61) and a lubricating fluid retaining portion (62) distributed about the first axis of rotation (X).

An axle disconnect control system and method for an axle disconnect system of a vehicle, the axle disconnect system including a dog clutch, include a position sensor configured to measure a position of a solenoid of the dog clutch, wherein the solenoid is configured to move a first gear of the dog clutch to engage / disengage with a second gear of the dog clutch, wherein the first gear is connected to a powertrain of the vehicle and the second gear is connected to an axle or a wheel of the vehicle and a control system configured to perform, based on the measured position of the solenoid, velocity-based control of the solenoid to engage / disengage the first and second dog clutch gears to connect / disconnect the axle or the wheel of the vehicle to / from the powertrain of the vehicle, respectively.

A method to reset an electromechanical disconnect is provided. The method includes electrically disengaging a pawl holding a first half of a dog clutch, located between a starter-generator and a main engine gear box, in a disengaged position, controllably energizing the starter-generator to produce a selected angle of rotational motion of a starter-generator shaft, wherein the selected angle is equal to 360 degrees divided by a number of teeth on the first half of the dog clutch, and determining when the first half of the dog clutch is engaged with a second half of the dog clutch.

A method for detecting a shift drum position in a dog clutch transmission of a motor vehicle, wherein the dog clutch transmission comprises a first loose gear of a first gear stage (5) and a second loose gear of a second gear stage (6), which are axially fixed and rotatably mounted on a shaft, wherein a shift sleeve is arranged axially displaceably on the shaft between the first loose gear and the second loose gear in order to selectively connect either the first loose gear or the second loose gear to the shaft in a rotationally fixed manner by means of an engagement of claws in recesses associated with the claws, wherein the shift sleeve is axially displaced depending on a rotation angle of a shift drum, wherein the dog clutch transmission comprises an electric motor, wherein the shift drum is rotatable by means of the electric motor and thus the shift sleeve is axially movable on the shaft.wherein, to detect the position of the switching drum, the switching drum is rotated by means of the electric motor towards a first end stop (2) of the switching drum until the switching drum is blocked, wherein the current (I) required for the operation of the electric motor is monitored, wherein a “tip-to-tip” position (4) of the switching sleeve, in which the claws are in contact with the first or second loose gear without entering the associated recesses, thus blocking further rotation of the switching drum, is distinguished from a position of the switching drum at the first end stop (2), in which the first or second loose gear is non-rotatably connected to the shaft and blocks the switching drum, by detecting a different current (I) to be applied, so that, depending on the current to be applied, the position is determined as either the tip-to-tip position (4) or as the first end stop (2).

To simplify and miniaturize a structure for transmitting power of two power sources to a propeller, in a ship propulsion machine having the two power sources for rotating the propeller.SOLUTION: The marine propulsion device includes an engine that is a first power source that rotates the propeller, a motor that is a second power source that rotates the propeller, an engine drive shaft 13 connected to the engine, a motor drive shaft 14 connected to the motor, an upper transmission shaft 17 connected to the propeller shaft, and a dog clutch 40 that switches a connection mode of the engine drive shaft 13, the motor drive shaft 14, and the upper transmission shaft 17 between a mode in which the engine drive shaft 13 and the upper transmission shaft 17 are connected to each other and a mode in which the motor drive shaft 14 and the upper transmission shaft 17 are connected to each other.SELECTED DRAWING: Figure 2

To provide a vehicle control device that can stably engage the clutch. [Solution] In the case of straight-line driving where the steering angle θsw of the vehicle 10 is less than or equal to a first predetermined value θn and the difference in front and rear wheel rotation speeds ΔNw is less than or equal to a second predetermined value NWn, the electronic control unit 80 calculates the synchronous rotation speed Ntgt from the MG1 rotation speed Nmg1. As a result, in the case of straight-line driving, the MG1 rotation sensor 94, which has high detection accuracy, is used instead of the second wheel speed sensor 92, which has low detection accuracy, in the engagement control of the dog clutch 60, and the rotation synchronization of the first dog teeth 60a and the second dog teeth 60b is performed with high accuracy, so that the engagement control of the dog clutch 60 is performed stably.

The invention relates to an assembly for a compressor rotor of a turbine engine having a longitudinal axis (X), the rotor comprising a plurality of discs (8) mounted so as to be rotatable about the longitudinal axis (X) and coupled together by Curvic-type coupling, the assembly being configured to be mounted so as to be rotatable about the longitudinal axis (X) and comprising: • - a tie-rod (1) having a non-threaded outer surface, • - a journal (2) configured to exert an axial pressure on the discs (8) in a direction opposite to an axial pressure exerted by the tie-rod (1) on the discs (8) so as to ensure the coupling between the discs (8), the assembly further comprising means for blocking axial translation which are configured to exert an elastic force on the journal (2) so as to keep the journal (2) in contact with the discs (8), the means for blocking axial translation comprising: - a lug (10) projecting from the outer surface of the tie-rod (1), and - a wedge (3) having a first wedge portion (31) bearing axially against the journal (2) so as to block the radial translation of the journal (2), and a second wedge portion (32) bearing radially against the journal (2) so as to block the axial translation of the journal (2), the wedge (3) and the lug (10) being assembled by dog clutch coupling.

An electromagnetic switchable clutch includes a dog clutch, a one-way clutch and a coil assembly. The dog clutch includes a dog clutch hub with a first outer spline and first pockets, a dog clutch disc with a second outer spline and a dog clutch sleeve with an inner spline, complementary to the first outer spline and the second outer spline. The inner spline is drivingly engaged with the first outer spline and axially displaceable to engage the second outer spline. The one-way clutch includes a cam ring and pawls. The cam ring includes second pockets. The pawls are disposed the first pockets or the second pockets and arranged to engage the other of the first pockets or the second pockets to rotationally lock the cam ring to the dog clutch hub in a single rotational direction. The coil assembly is arranged to axially displace the dog clutch sleeve.

The utility model relates to the technical field of automobile part machining, in particular to an automobile silencing piece clamping jaw bending mechanical arm which not only can conveniently drive silencing pieces to be fed, discharged and fixed and improve the working efficiency, but also can conveniently control the bending strength and avoid the situation that clamping jaws are broken. Comprising a conveying mechanism; the silencing piece bending device further comprises a driving mechanism, a grabbing mechanism, a moving mechanism and two bending mechanisms, the driving mechanism is installed on the conveying mechanism and drives the grabbing mechanism to move, the grabbing mechanism is installed on the driving mechanism and drives the silencing pieces to be fed, discharged and positioned, and the moving mechanism is installed on the conveying mechanism and drives the two bending mechanisms to move. The two bending mechanisms are both installed on the moving mechanism and bend the silencing piece clamping jaws.

The invention discloses a power system, a vehicle and a gear shifting method, the power system comprises an engine, a driving gear and a jaw clutch, and the engine is provided with an engine shaft; the driving gear is rotationally assembled on an engine shaft; the jaw clutch comprises a gear hub and a gear sleeve, the gear hub is arranged on the engine shaft, the gear sleeve is assembled on the peripheral side of the gear hub in a meshed mode, the gear sleeve can move in the axial direction of the engine shaft and is provided with a neutral gear and a transmission gear, the gear sleeve is only meshed with the gear hub at the neutral gear, and the gear sleeve is simultaneously meshed with the gear hub and the driving gear at the transmission gear; and the first motor is connected with the engine shaft, and the first motor is used for driving the engine shaft to rotate before the gear sleeve is switched from one of the neutral gear and the transmission gear to the other of the neutral gear and the transmission gear so as to reduce the rotating speed difference between the gear sleeve and the driving gear or the gear hub. The technical problems that in the prior art, a synchronizer is prone to being damaged during gear shifting, and gear shifting cannot be conducted smoothly are solved.

The invention provides a braking force self-adaptive adjusting method, system and equipment of an elevator caliper disc brake, and relates to the field of braking control of elevator caliper disc brakes. The adjusting method comprises the steps that braking characteristic data of a brake are obtained in real time; after the brake acts, real-time braking force and theoretical braking force are calculated according to the braking scene and the braking characteristic data, and second braking force is obtained according to the theoretical braking force and a pre-trained neural network model; when the braking force deviation between the real-time braking force and the second braking force is larger than a braking force preset threshold value, the theoretical compression amount of the spring is calculated according to the second braking force; and according to the theoretical compression amount and the real-time compression amount of the spring, the actual compression amount of the spring is controlled through the telescopic device, so that the spring outputs compensation braking force to conduct self-adaptive adjustment on the braking force of the brake. The braking force of the brake can be adjusted in a self-adaptive mode, braking force attenuation is dynamically compensated, and it is guaranteed that the braking efficiency is stable and reliable.

This electric vehicle comprises a dog clutch (48) with a first set of teeth (56) driven by an electric motor and a second set of teeth (58) rotatably coupled to a shaft (26), and an actuator (54) to engage the dog clutch. A method for engaging the dog clutch comprises, in this order: - detecting a blocking of the dog clutch in a teeth-to-teeth configuration while the actuator tries to engage the dog clutch and while the shaft is rotatably decoupled from output components of the vehicle, - rotating the first set of teeth in a first direction (R1), to drive the shaft in rotation by friction between the sets of teeth, and - rotating the first set of teeth in a second direction (R2) opposite to the first, so that the first set of teeth slip against the second set of teeth, enabling the actuator to fully engage the dog clutch.