168 results about "Constant-velocity joint" patented technology

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.

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.

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.

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).

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

The present invention relates to a symmetric double offset constant velocity joint and, specifically, to a symmetric double offset constant velocity joint in which an outer race track and an inner race track are each doubly offset with respect to a joint center and have center points that are symmetrical with each other, and thus the depth to which each of the tracks surrounds a ball is increased to prevent track deformation. Provided is a symmetric double offset constant velocity joint comprising: an outer race having an outer race track formed on the inner surface; an inner race having an inner race track formed on the outer surface; a ball disposed between the outer race and the inner race; and a cage disposed between the outer race and the inner race to support the ball, wherein the outer race track includes an outer race straight track, an outer race outer curved track formed outside the outer race straight track, and an outer race inner curved track formed inside the outer race straight track, and the inner race track includes an inner race straight track, an inner race outer curved track formed outside the inner race straight track, and an inner race inner curved track formed inside the inner race straight track.

The present invention provides a hub assembly for a wheel bearing device and a constant velocity universal joint that can suppress slippage such as stick-slip and can be easily manufactured. [Solution] This hub assembly 41 connects a wheel bearing device 1 and a constant velocity universal joint 21 in a way that enables power transmission. An inner ring 4 is press-fitted onto the outer circumference of a hub ring 3 from the inboard side, and an annular connecting member 14 is fitted onto the outer circumference of the hub ring 3 with the inner ring 4 in axial contact with its inboard side. The inner ring 4 and the connecting member 14 are clamped and fixed to the hub ring 3 by the radially outward plastic deformation of the inboard end of the hub ring 3, and the outer joint member 22 of the constant velocity universal joint 21 and the connecting member 14 are connected to each other by serration fitting.

The utility model discloses a composite armored semi-rigid dust cover for an automobile constant velocity universal joint. The universal joint dust cover mainly solves the problem that the universal joint dust cover is poor in physical damage resistance. The protective cover is characterized in that a protective layer (2) made of metal is connected with the hoop and arranged on the circumferential outer side of the cover body; and the surface coating (3) is arranged on the outer wall of the cover body and is used for reflecting infrared rays. The utility model provides a composite armored semi-rigid dust cover for a constant velocity universal joint of an automobile, which is provided with a protective layer made of metal to prevent flying stones on a road surface and prevent the dust cover from being broken down; and the ceramic-based reflecting coating is sprayed on the surface, so that the infrared wave band is mainly prevented, the infrared radiation absorption rate of the cover body is reduced by 40% to the maximum, and the cover body failure caused by excessive heat absorption of the cover body is avoided.

This hub assembly 41 includes a bearing device 1 for wheel and a constant velocity universal joint 21 which are mutually joined through a screw member 44 having external thread parts 42, 43 at both ends. When being inserted into a through-hole 16 axially penetrating an inner member 12, the screw member 44 has the external thread part 42 on one end that is screwed into an internal thread hole 46 at a bottom part 27 of an outer joint member 22, and the external thread part 43 on the other end, to which a nut 45 is attached so as to clamp the inner member 12 by the nut 45 and the outer joint member 22.

Sealing device (1) for a rolling bearing (2), comprising a first shield (21) attached to a radial inner ring (4) of the bearing, a second shield (22) attached between a radial outer ring (5) of the bearing, at least one annular sealing element (23) and a substantially sleeve-shaped, annular, static sealing element (26) arranged between the first shield (21) and the radial inner ring (4) and interacting in a fluid-tight manner with a constant velocity joint (14), wherein the annular sealing element (26) has a side wall (28) provided radially on the inside with at least one groove (29) forming a channel (30) for a direct hydraulic connection between an annular chamber (7) bounded between the inner ring and the outer ring (4, 5) and an empty inner volume (33) of the annular static sealing element (26).

The application provides a multi-mode robot shoulder joint mechanism, comprising a shaft base, a first joint module, a second joint module, a third joint module, a constant velocity universal joint and a terminal output flange. The first joint module and the third joint module are coaxially arranged on the shaft base; the first joint module is provided with a hollow hole penetrating along an axis, and the output end of the third joint module is fixedly connected with a third joint module output torque shaft, the third joint module output torque shaft is fixedly connected with the constant velocity universal joint after penetrating through the hollow hole of the first joint module, and the constant velocity universal joint is connected with the terminal output flange; the first joint module drives the terminal output flange to rotate around an X axis, the second joint module drives the terminal output flange to rotate around a Y axis, and the third joint module drives the terminal output flange to rotate around a Z axis through the constant velocity universal joint. The application has a compact structure, achieves the lightweight overall target, and reduces the torque and inertia of the related load motor.

The invention provides a spline-free welding type tripod structure and an assembling method thereof, and belongs to the technical field of automobile parts, the tripod structure is used for a tripod type constant velocity universal joint, the tripod structure comprises a tripod with a handle, one end of the tripod is provided with a welding end face, and the other end of the tripod is provided with three journals evenly distributed in the circumferential direction; the bearing assembly comprises a first bearing, a second bearing and a third bearing which are respectively pressed on the journals; the tripod with the handle is fixedly connected with a middle shaft rod of the constant-speed driving shaft through the welding end face, and the spline-free welding type tripod structure does not comprise a check ring used for axial limiting. By simplifying the structure, canceling retainer ring and spline processing and adopting friction welding and center hole weight reduction design, the transmission performance is ensured, and meanwhile, the manufacturing cost, the assembly complexity and the product weight are remarkably reduced.

Provided is a hub-embedded type constant velocity device including a hub housing having a constant velocity joint coupled inward, an inner race coupled to an outer circumferential surface of the hub housing, and a pre-press ring coupled to the outer circumferential surface of the hub housing and located on one side of the inner race, wherein an end portion of the hub housing is formed to be rolled upward toward the pre-press ring to form a shaped portion coupled to the pre-press ring, the shaped portion being used to apply pressure to the pre-press ring and the inner race.

In a wheel bearing device, the invention aims to reduce the number of parts compared to a device in which a sealing member is provided to cover the outer circumference of the spline fitting portion, while ensuring corrosion resistance of the spline fitting portion between the end face of the outer member and the end face of the mouth portion of the constant velocity universal joint. [Solution] The wheel bearing device 1 comprises an inner side sealing member 9 having a slinger 91 fitted to an inner ring 4 and an elastic member 95, the elastic member 95 extending axially from the slinger 91 toward the other side, and the tip of the elastic member 95 in contact with the mouse portion 24.

A double offset constant velocity joint (10) has an outer ring (20) that is cylindrical and has a plurality of outer ring spherical grooves (23) on its inner circumferential surface (20a), an inner ring that is arranged inside the outer ring (20) and has a plurality of inner ring spherical grooves on its outer circumferential surface, and a plurality of balls (40) for transmitting the torque, wherein the outer ring (20) has first wall sections (21) in which the outer ring spherical grooves (23) are formed, and second wall sections (22) that are each arranged between two first wall sections (21) that are adjacent in the circumferential direction (Z), and outer surfaces (21a) of the first wall sections (21) project in the radial direction (Y) beyond outer surfaces (22a) of the second wall sections (22), and a thickness (Ta) of the first wall sections (21) at contact sections (23a) between the outer ring ball grooves (23) and the balls (40),a thickness (Tb) of the groove bottoms (23b) of the outer ring ball grooves (23) of the first wall sections (21) and a thickness (Tc) of the second wall sections are set to values ​​that satisfy the following equation (1): Ta > Tc ≥ Tb ... (1).,

The utility model relates to a detector for detecting different sections of a transmission shaft jacket fairway interval, which is a detection tool used for a car constant velocity universal joint transmission shaft jacket fairway, a cylindrical hole is arranged on a working table plate, a step sliding column is arranged in the cylindrical hole, a spring A is sleeved on the step sliding column, and the lower end of the step sliding column is fixedly connected with a baffle block; the upper end of the stepped sliding column is fixedly connected with the upper cover, a transverse column sleeve is arranged between the stepped sliding column and the upper cover, a connecting rod B is fixedly arranged in one end of the transverse column sleeve, the other end of the connecting rod B is fixedly connected with a steel ball B, a connecting rod A in sliding connection is arranged in the other end of the transverse column sleeve, and the other end of the connecting rod A is fixedly connected with a steel ball A. A longitudinal column sleeve is arranged in the stepped sliding column. The longitudinal column sleeve and the transverse column sleeve are communicated and perpendicularly and fixedly connected, the transmission assembly is arranged in the longitudinal column sleeve and the transverse column sleeve, a meter rod of the dial indicator is fixedly arranged in the longitudinal column sleeve, a contact of the dial indicator is in contact with the lower end face of the transmission assembly, and the vertical face of the upper end of the transmission assembly is in contact with the connecting rod A. The technology is accurate in data detection and high in efficiency.

A flexible boot for a constant velocity universal joint includes: attachment portions to a mating member at both ends; and a bent portion provided between the attachment portions and absorbing deformation caused by operation of a constant velocity universal joint. The flexible boot is made of a rubber material obtained by blending 50 to 80 parts by weight of HNBR having an acrylonitrile content of 15 to 21 wt% and 20 to 50 parts by weight of EPDM, the rubber material having an elastic recovery rate of 18% or more at -40 °C in a TR test.

This tripod constant-velocity joint comprises: a housing having three guide grooves; a spider comprising a hub disposed in the housing and three journals protruding radially outward from the hub and arranged in the respective guide grooves; and three roller assemblies acting as intermediaries for transmitting rotational power between the journals and housing. Each guide groove comprises a ceiling surface, and first and second power transmission surfaces on either side of the ceiling surface. Each roller assembly comprises an inner roller and an outer roller disposed on the outer side of the inner roller. The first and second power transmission surfaces allow transmission of power via interaction with the outer surface of the outer rollers. Each outer roller comprises a first tilt-limiting surface provided on the inside end of the outer surface, and the housing comprises second tilt-limiting surfaces that come in contact with the first tilt-limiting surfaces to limit further tilting of the outer rollers when same are tilted.

Disclosed is a power transmission apparatus including a constant velocity joint and a wheel hub. The power transmission apparatus includes a wheel hub, an outer race, a first inner race combined with the outer race to constitute a first constant velocity joint, a second inner race combined with the outer race to constitute a second constant velocity joint, a shaft coupled to the first inner race so as to transmit rotation to the first inner race, a stem coupled to the second inner race and the wheel hub so as to receive rotation from the second inner race and transmit the same to the wheel hub, and an elastic body configured to elastically support the stem or the shaft relative to the outer race.

The utility model relates to a transmission shaft retainer inner sphere diameter detector, in particular to a retainer inner sphere diameter detector for a fixed end joint and a movable end joint of a car constant velocity universal joint transmission shaft, which comprises a support, a rotating shaft A, a rotating shaft B and a positioner, a measuring rod A is rotatably connected to the rotating shaft A, the measuring rod A is perpendicular to and fixedly connected with a measuring head A, a measuring rod B is rotatably connected to the rotating shaft B, and the measuring rod B is perpendicular to and fixedly connected with a measuring head B; a gauge rod of the dial gauge and the measuring rod B are fastened through a screw, a contact on the dial gauge makes contact with the end face of a screw installed on the measuring rod A, one end of the bolt penetrates through the measuring rod A and is in spiral connection with the measuring rod B, the spring is sleeved on the bolt, the positioner is provided with a spherical groove, a square notch, a groove opening A and a groove opening B, the square notch is opposite to a reamed hole in the working table plate, the measuring head A is opposite to the groove opening A, and the groove opening B is opposite to the groove opening B. And the measuring head B is opposite to the groove opening B. When the detector is used for measuring the inner ball diameter of the retainer, not only is the measurement convenient, but also the detection precision of the inner ball diameter of the retainer can be ensured.

An assembly includes a wheel hub and a sealing device forming a first seal between inner and outer rings of a bearing of the wheel hub and a second seal with a constant velocity joint connected to a first end of the inner ring of the bearing. The sealing device includes a sleeve mounted on a cylindrical outer surface of the inner ring that has a first annular radially outwardly extending flange on a first end and a second end that projects beyond an end of the wheel to surround and form a seal with the constant velocity joint. The flange is spaced from an annular wall of the inner ring and from a second flange that extends radially inward from the outer ring. The second flange includes a seal lip that extends toward the first flange and axially outward of the annular wall of the inner ring.

The invention relates to a constant velocity joint assembly. The constant velocity joint assembly includes: a first constant velocity joint including a first shaft, a first inner race connected to the first shaft, a first outer race housing the first inner race, and a first ball disposed between the first inner race and the first outer race; a second constant velocity joint disposed opposite to the first constant velocity joint and including a second shaft, a second inner race connected to the second shaft, a second outer race accommodating the second inner race, and a second ball disposed between the second inner race and the second outer race; the connecting piece comprises a plate-shaped part arranged between the first outer seat ring and the second outer seat ring, a first connecting part jointed with the end part of the first shaft and a second connecting part jointed with the end part of the second shaft; an end portion of the first shaft has a portion that is in direct contact with the first connection portion during the articulation movement and is formed in a spherical shape. The constant velocity joint assembly satisfies the following parametric relationship: 1.005 < = A / B < = 1.020, where A represents an inner diameter of the first connection portion and B represents a diameter of a spherical portion of the end portion of the first shaft.

A constant velocity joint spider and constant velocity joint therewith, wherein the constant velocity joint spider has an annular body with a through bore extending along a central axis and a plurality of trunnions. Each trunnion has an outer surface extending radially outwardly from the annular body to a free end. Each outer surface defines at least one running surface. Each free end has a first portion having a first radius and at least one second portion having a second radius, the at least one second portion extends between the first portion and the at least one running surface. The first radius is greater than the second radius.

The utility model discloses a kind of lightweight constant velocity universal joint star-shaped sleeve, including star-shaped sleeve main body, eight outer raceways are equidistantly arranged on the circumference of star-shaped sleeve main body, and the position between center hole and adjacent two outer raceways on star-shaped sleeve main body is provided with the weight-reducing through hole parallel to axis;Outer raceway is close to center position and is provided with multiple axial shallow grooves along outer raceway direction.The utility model can not only reduce the weight of star-shaped sleeve main body by increasing the number of outer raceway, but also improve steering and power transmission accuracy by increasing the number of matching steel ball, star-shaped sleeve is mainly circumferentially stressed, and the axial weight-reducing through hole is arranged on star-shaped sleeve main body, axial shallow groove and flow guide groove are arranged in outer raceway, and weight-reducing axial groove and weight-reducing circumferential groove are arranged on circumference, which will not affect normal stress and structural strength when star-shaped sleeve main body works, to achieve the purpose of lightweight design.