268 results about "Constant-velocity joint" patented technology

A portable on-vehicle dynamometer comprises a containment chassis (2), a drum (3) rotatably housed in said containment chassis (2) to rotate around a load shaft (4), mechanical transmission means (5) adapted to connect said load shaft (4) to the hub of a wheel of the vehicle being measured to transfer the motion of the vehicle engine to said drum (3), wherein said mechanical transmission means (5) comprise a connection flange (6) provided with a central axis of rotation and suitable to be fixed stably but removably to the hub of the vehicle wheel, wherein said mechanical transmission means (5) further comprise a CV joint (7) adapted to connect said flange (6) with one end of said load shaft (4) and designed to allow mutual angular regulation between said load shaft (4) and the central rotation axis of said flange (6) with respect to at least one inclination plane.

The invention discloses a measuring machine for detecting defects of a constant velocity universal joint component, and aims to solve the problems that the existing equipment is low in double-reference alignment efficiency, poor in precision and easy to be polluted and interfered. The device comprises a workbench with a center avoiding hole, a detection execution unit comprising a detachable contact type or laser measuring head, a motion driving unit driving the measuring head to move in a three-dimensional mode, a reference positioning unit comprising a double-vision assembly and a positioning adjusting assembly, an electric control unit and a cleaning auxiliary assembly. The electric control unit cooperates with the double-vision assembly to collect inner hole and outer circle references and controls the positioning adjusting assembly to finely adjust the position of a workpiece, and double-reference alignment is achieved. The measuring machine can improve the positioning precision and efficiency, enhance the workpiece clamping stability and the equipment universality, reduce the detection error caused by pollution, and guarantee the reliable detection.

A constant velocity joint includes: an outer race provided with a through-hole extending along a longitudinal axis and forming a plurality of outer ball grooves; an inner race forming a plurality of inner ball grooves that respectively pair with the outer ball grooves; a plurality of balls that are respectively positioned within a space formed by the pair of the outer ball grooves and the internal ball grooves; a ball cage that accommodates the plurality of balls; and a grease retainer coupled to the outer race to prevent grease, which fills a space where the ball and the ball cage are placed, from leaking through the through-hole. The grease retainer has a convex shape protruding towards the ball and the ball cage.

A constant velocity joint includes an outer part having a connecting portion and an opening portion and a plurality of axial grooves forming outer raceways, and an inner part having a plurality of axial grooves forming inner raceways. Each outer raceway and inner raceway form a raceway pair, a ball being disposed in each raceway pair. Each raceway pair defines a region in axial cross-section with respect to a groove longitudinal axis conceptually divided into four quadrants. The outer raceway is in the first and second quadrants and the inner raceway is in the third and fourth quadrants. With torque transmission in a first direction, the ball has two contact points in the first quadrant and / or two contact points in the third quadrant, and with torque transmission in a second direction, the ball has two contact points in the second quadrant and / or two contact points in the fourth quadrant.

Joint arrangement comprising: a constant velocity joint having an outer race with a welded seat; a flange component having a weld seat projection on a first side, the weld seat projection configured to engage the weld seat of the outer ring; a conductive component interconnecting the outer ring and the flange component at an interface between the outer ring and a second side of the flange component opposite the first side; and a shaft component drivingly coupled to the constant velocity joint, wherein the constant velocity joint is received by the shaft component at the weld seat of the outer ring and drivingly coupled to it.

A boot assembly for a constant velocity joint. The boot has mating segments to encase the CV joint housing. A split seal is configured to open and pass over the CV joint housing and mate with the CV joint housing without dissembling the related drive components. The interior of the seal is configured for use with circular and non-circular CV joint housings.

The invention relates to a wheel bearing arrangement, comprising a hub (10), a wheel bearing (20) arranged on the hub (10), a wheel carrier (30) to which the wheel bearing (20) is fixed by means of a wheel bearing outer ring (21), comprising a synchronous universal joint (40) which is axially clamped to the hub (10) by means of a planar tooth meshing device, and comprising a sealing ring (50) which surrounds and seals the planar tooth meshing device on the radially outer side. A sealing ring is pre-assembled on the constant velocity joint and engages with the hub outside the force flow of the wheel bearing in the assembled state of the wheel bearing arrangement, the sealing ring providing a contactless pre-seal for the wheel bearing while interacting with the wheel carrier.

This invention discloses a calibration unit for a constant velocity universal four-wheel alignment instrument with a hinged rod, belonging to the field of transportation technology. It includes a unit base, a drive motor mounted on one side of the unit base, a constant velocity rotating seat mounted above the unit base, a kingpin assembly mounted above the constant velocity rotating seat, half-shaft assemblies snapped onto both sides of the kingpin assembly, and angle adjustment assemblies sleeved above the kingpin assembly. Two angle adjustment assemblies are included, each comprising an angle adjustment base, an angle adjustment drive arm, an angle adjustment hinge plate, an angle adjustment kingpin sleeve, and an angle adjustment lever. The upper surface of the unit base is movably connected to the lower surface of the angle adjustment base. The inner side of the angle adjustment base is fitted to one end of the angle adjustment drive arm, and the other end of the angle adjustment drive arm is connected to the angle adjustment lever. The end of the angle adjustment lever away from the angle adjustment drive arm is connected to the angle adjustment hinge plate, and the inner side of the angle adjustment hinge plate is connected to the angle adjustment kingpin sleeve. This invention uses a constant velocity universal joint with a hinged rod, improving measurement accuracy.

The utility model discloses a light electric single-wheel balance car driven by an external motor. The light electric single-wheel balance car comprises an electric control and seat cushion unit, a suspension lower movable unit, a motor driving unit, a shock absorber, a battery pack unit, a wheel set unit, a pedal and the like. A high-speed motor is used for speed reduction through a gear and power transmission through a constant velocity universal joint, and finally a belt speed reducer is used for driving a wheel set to rotate, so that modular power layout is achieved. Due to the fact that the power / weight ratio of the high-rotating-speed motor is larger, the total weight of the vehicle can be effectively reduced. The suspension structure of the triangular double shock absorbers can reduce the number of components. The upper half part of the universal coupling is fixed in the shell of the driving unit, the lower half sliding part of the universal coupling is positioned below the damping system spring, and the motor is fixedly mounted through the expansion joint of the universal coupling, so that the power unit does not move along with the suspension. Due to the adoption of the modularized structure, the disassembly and maintenance are convenient, and the reassembly and combination are simple and convenient. The last stage adopts belt transmission, noise is reduced, and maintenance is convenient.

This constant velocity joint comprises: an outer joint member defining a longitudinal axis and including a first outer ball track and a second outer ball track; an inner joint member including a first inner ball track paired with the first outer ball track, and a second inner ball track paired with the second outer ball track; a plurality of balls; and a ball cage accommodating the plurality of balls. The outer joint member comprises an open side and a coupling side facing each other along the longitudinal axis. The pair of the first outer ball track and the first inner ball track forms a first aperture angle toward the open side in a non-articulated state, and the pair of the second outer ball track and the second inner ball track forms a second aperture angle toward the coupling side in a non-articulated state. The center line of the first outer ball track comprises a first coupling side arc through which a joint center surface passes and a first open side arc connected to the first coupling side arc. The center line of the second outer ball track comprises an intermediate arc through which the joint center surface passes, and a second coupling side arc and a second open side arc respectively connected to both sides of the intermediate arc.

A grease composition for outboard constant velocity joints, comprising (a) a diurea-based thickener and (b) a base oil containing a synthetic oil and having a kinematic viscosity at a temperature of -20°C measured according to JIS K 2283 of 3,000 to 20,000 mm2 / s.

The present invention provides a protective cover that is cantilevered and can suppress damage caused by localized stress concentration due to bending loads. [Solution] The heat shield member 70 is used to protect the constant velocity joint 40 extending in the direction of the axis C, and is made of a plate-like body and is L-shaped with two tip portions 74 and 76 when unfolded in a direction perpendicular to the thickness direction of the plate-like body. (a) The two tip portions 74 and 76 of the heat shield member 70 are provided with fastening portions 84 and 86, each having a fastening hole, and (b) the heat shield member 70 is attached to the transfer 26 in a cantilevered manner by fastening the fastening portions 84 and 86, respectively, and (c) the edge end portion 70e1 on the cantilevered side of the heat shield member 70 is provided with a notch 78 to suppress localized stress concentration due to bending load F generated in a cross section S perpendicular to the straight line L connecting the fastening portions 84 and 86, respectively.

To provide a wheel bearing device that facilitates assembly of a face spline without deteriorating the sealing performance of a seal member that prevents muddy water from entering the face spline.SOLUTION: A wheel bearing device comprises: an outer ring 2; an inner member including a hub ring 3 and an inner ring 4; balls 7; a constant velocity universal joint 20 coupled to the hub ring 3; and an inner-side seal member 9 which seals between the outer ring 2 and the inner ring 4. A face spline 11a and a face spline 25a are formed on an inner-side end face of the hub ring 3, and a shoulder portion 25 of the constant velocity universal joint 20. A cover member 17 is provided to protect an outer diameter side of the face spline 11a and the face spline 25a. An inner diameter of the cover member 17 is formed so as to increase in diameter toward the inner side.SELECTED DRAWING: Figure 1

A tool for removing a constant velocity (CV) joint from a driveshaft. The tool can include a frame with a first end arranged at a vehicle side of the CV joint and a second end arranged at a wheel side of the CV joint. The tool can further include an engagement member arranged at the first end of the frame. The engagement member can at least partly enclose the driveshaft and can engage with an inner race of the CV joint from the vehicle side of the CV joint. During use, the tool can be arranged such that a force applied to the frame at the second end of the frame in a direction away from the CV joint is transferred through the frame to the engagement member causing the engagement member to engage the inner race of the CV joint, thereby removing the CV joint from the driveshaft.

Provided is an assembling device including a phase matching device configured to perform phase matching (20) on a cassette (11), which is formed of an inner joint member (3) and a cage (5) fit to each other so as to be rotatable relative to each other about a center axis (Oi) of the inner joint member (3), to match circumferential positions of an inner track groove (9) of the inner joint member (3) and a pocket (10) of the cage (5). The phase matching device (20) includes a pair of moving bodies (23) configured to synchronously move in directions opposite to each other, and each of the moving bodies (23) is configured to perform slide movement along a direction orthogonal to an axis-parallel plane (P) including the center axis (Oi) as a reference, under a state in which a distal end portion (protrusion (24) formed thereon) of each of the moving bodies has been inserted in the pocket (10).

To propose a drive shaft having high strength and allowing an increase in torque transmission capacity with ease, in a structure where a fixed type constant velocity universal joint and a sliding type constant velocity universal joint are mounted on both ends of a hollow intermediate shaft.SOLUTION: The intermediate shaft is hollow over its entire length. A shaft portion is coaxially and integrally formed with the inner race of the fixed type constant velocity universal joint, and an end opening of the intermediate shaft is solid-phase bonded to the shaft portion. A shaft portion is coaxially and integrally formed with the tripod of the sliding type constant velocity universal joint, and the other end opening of the intermediate shaft is solid-phase bonded to the shaft portion.SELECTED DRAWING: Figure 1

This invention discloses an axial piston pump with a main shaft driven at a constant velocity to rotate an inclined cylinder assembly. The pump includes a pump body, a main shaft, a turntable on the main shaft, ball joints, and a cylinder mounted on the outer side of each ball joint. A piston mechanism is located between the cylinder and the turntable. A distribution plate is located on the outer side of the cylinder, and inlet / outlet flow channels are located inside the pump body. Multiple curved groove raceways or multiple straight groove raceways are located on the outer surface of the ball joints. Corresponding raceways are provided between the cylinder and the multiple curved groove raceways or multiple straight groove raceways. Torque is transmitted through the rolling contact of balls within the raceways, forming a fixed or telescopic ball cage type constant velocity universal joint transmission mechanism, achieving constant velocity drive of the inclined cylinder rotation by the main shaft. Because the components at both ends of the piston, namely the turntable and the cylinder, rotate at completely equal and synchronous speeds, the "floating" motion of the float in a float pump can be effectively solved, making the internal rotating components operate more stably under high-speed driving conditions and reducing friction and wear problems.

The present invention discloses a coupling device for an outer constant velocity joint and a wheel hub bearing unit, and a torque transmission method. The wheel hub bearing unit includes a wheel hub outer ring and a wheel hub inner ring. The wheel hub inner ring has a conical center hole. A protrusion is provided at the end of the outer constant velocity joint. The outer surface of the protrusion is a conical outer surface that matches the inner surface of the conical center hole. The protrusion is inserted into the center hole of the wheel hub inner ring. A friction-enhancing structure is provided between the conical outer surface and the inner surface of the center hole. The end of the outer constant velocity joint and the wheel hub inner ring are locked by a locking member, so that the conical outer surface and the inner surface of the conical center hole are tightly fitted to form a conical surface. The present invention can eliminate the commonly used internal and external spline matching structure, simplify the component structure, reduce the component weight, and eliminate noise caused by relative sliding between the end face of the wheel hub bearing unit and the end face of the outer constant velocity joint.

Provided is a fixed-type constant-velocity universal joint 1 of a track groove crossing type, wherein a ratio PCDBALL / DBALL of a pitch circle diameter PCDBALL of a plurality of balls 4 to a diameter DBALL of each of the balls 4 is set in a range of 3.89 to 4.48. A ratio DINLET / DBALL of an inlet spigot diameter DINLET of an outer joint member 2 to the diameter DBALL of each of the balls 4 is set in a range of 4.18 to 4.76.

A plunging-type constant velocity universal joint includes outer and inner joint members having linear track grooves, balls, and a cage accommodating the balls in pockets. Curvature centers of spherical outer and inner peripheral surfaces of the cage are offset toward opposite sides with respect to a joint center. A range between distances of 10 mm towards deep and opening sides from a center portion of a sliding range of the track groove of the outer member in the axial direction is a center range, and a region in which a PCD of the track grooves of the outer member becomes smallest is in the center range. A minimum value of a PCD clearance in the track grooves in the center range is from 0.010 mm to 0.100 mm. A PCD mutual difference of the track grooves of the outer member in the center range is 0.150 mm or less.

The utility model provides a multi-raceway constant velocity joint assembly. The tripod mainly solves the problem that an outer ball ring of a tripod of an existing constant velocity universal joint is a one-section type complete arc-shaped surface to achieve sliding fit with a channel of the inner wall of a shell, and stability is not high. The ball bearing is characterized by further comprising a plurality of ribs (31) which are arranged on the circumferential outer wall of the outer ball ring and distributed in the radial direction of the outer ball ring. And the slideways (11) are arranged on the inner wall of the shell, correspond to the convex edges one by one and are in sliding fit with the convex edges. According to the multi-raceway constant velocity universal joint assembly, more stable transmission performance can be provided through the multiple raceways, vibration and noise in the movement process are reduced, and the driving comfort is improved.

A grease composition for outboard constant velocity joints includes (a) a diurea-based thickener and (b) a base oil containing a synthetic oil and having a kinematic viscosity at a temperature of −20° C. measured according to JIS K 2283 of 3.000 to 20.000 mm2 / s.

The following description relates to a constant velocity joint (CVJ) included in a greater joint assembly. The joint assembly comprises: a CVJ having an outer race with a weld seat; a flange component with a weld seat projection on a first side, where the weld seat projection is configured to mate with the weld seat of the outer race; a conductive component that joins the outer race and the flange component at an interface between the outer race and a second side of the flange component, opposite the first side; and a shaft component drivingly coupled to the constant velocity joint, where the constant velocity joint is received by and drivingly coupled to the shaft component at the weld seat of the outer race.

Provided is a gripping method including: a phase matching step of matching tool relief grooves of a contact metal member and track grooves of a constant velocity universal joint component with each other in phase; a measuring step of measuring phase differences between the track grooves of the constant velocity universal joint component and a female spline of the constant velocity universal joint component; a matching step of matching, based on a result of the measuring step, a stopper with a recessed portion of the female spline having the smallest phase difference and gripping the constant velocity universal joint component by a collet chuck. Under a state in which the constant velocity universal joint component is gripped by the collet chuck, the contact metal member holds the constant velocity universal joint component.

A vehicle driveshaft assembly includes a first driveshaft axle and a first cap. The first driveshaft axle has a transaxle end for being installed to a vehicle transaxle. The first driveshaft axle having a wheel end for being installed to a first vehicle wheel. The first driveshaft axle further has a constant velocity joint disposed between the transaxle end and the wheel end. The first cap is provided over the transaxle end. The first cap has a corrugated portion that is compressible so that the first cap moves between a non-compressed state and a compressed state as the transaxle end is inserted into the vehicle transaxle.

A rear axle of a commercial electric vehicle includes a curved de Dion axle that includes stub axles, CV cups, each configured to receive a portion of a CV axle, and a central portion disposed downward and rearward of the stub axles. The rear axle includes a curved form factor to allow for a portion of an electric drive unit to be disposed in a manner where a hub centerline connecting the stub axles intersects the electric drive unit.

The utility model discloses a long-life constant velocity universal joint. The problem that scrap iron exists in an inner cavity of a conventional constant velocity universal joint and influences use is mainly solved. The mounting piece (4) is detachably connected with the outer wall of the shell, and a magnetic attraction part (41) is arranged on the mounting piece arranged in the inner cavity. The utility model provides a long-service-life constant velocity universal joint. The service life is prolonged by adsorbing scrap iron in a shell through a magnetic attraction part at one end of an installation piece.

To provide a torque transmission device in which the degree of freedom of a shaft processing system corresponding to a non-disassembly type coming-off prevention structure is enhanced.SOLUTION: The torque transmission device 2 includes a shaft 19 having a male spline 21, an inner joint member 12 having a female spline 22 and coupled to the shaft 19 in a torque transmittable manner by fitting of the male spline 21 and the female spline 22, and a retaining ring 24 housed in an annular recessed groove 23 formed in the shaft 19. The retaining ring 24 comes into contact with an end surface 22a of the female spline 22 and a side surface 23a of the annular recessed groove 23 on the shaft tip side, so that the shaft 19 is prevented from coming off. The 22a of the end face of the female spline 22 is expanded toward the tip side of the shaft. A groove bottom surface 23c of the annular recessed groove 23 is inclined so as to be diametrically expanded toward the shaft tip side.SELECTED DRAWING: Figure 2

To stabilize the quality and strength of an outside joint member in which a shaft part and a cup part are joined with frictional welding.SOLUTION: An outside joint member 11 comprises a cup part 12 an inner periphery of which is provided with a track groove for engaging with a roller 19, and a shaft part 13 joined to the cup part 12. The cup part 12 has a bottomed cylindrical shape with one open end, and comprises a cylindrical part, a bottom part, and a solid short shaft part 31 protruding from the bottom part. A solid part 32 is formed at one end of the shaft part 13. The short shaft part 31 of the cup part 12 and the solid part of the shaft part 13 are joined by friction welding. The core hardness of a joint part between the short shaft part 31 of the cup part 12 and the solid part of the shaft part 13 is set to an average core hardness of Hv350 or less and a maximum core hardness of Hv390 or less.SELECTED DRAWING: Figure 4

The utility model discloses a low-noise and high-durability constant velocity universal joint for new energy. The constant velocity universal joint tripod mainly solves the problem that friction force between an existing constant velocity universal joint tripod and an inner ball ring is large. The bearing frame is characterized in that a shaft neck (21) is arranged on the frame body, an inner ball ring (22) is arranged on the shaft neck in a sleeved mode, and a plurality of open grooves (211) used for storing grease are formed in the circumferential outer wall of the shaft neck. According to the low-noise and high-durability constant velocity universal joint for the new energy, the capacity of lubricating grease in the contact area of the three-pin frame and the inner ball ring is increased, the friction coefficient of the three-pin frame and the inner ball ring is reduced, the friction force is reduced, the friction force between the inner ball ring and a three-pin shell sliding groove is reduced, and the service life is prolonged.