CN115111278A - Axially moving tripod constant velocity joint - Google Patents
Axially moving tripod constant velocity joint Download PDFInfo
- Publication number
- CN115111278A CN115111278A CN202211036561.8A CN202211036561A CN115111278A CN 115111278 A CN115111278 A CN 115111278A CN 202211036561 A CN202211036561 A CN 202211036561A CN 115111278 A CN115111278 A CN 115111278A
- Authority
- CN
- China
- Prior art keywords
- sealing
- groove
- constant velocity
- wall
- tripod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
- F16D3/205—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
- F16D3/2055—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having three pins, i.e. true tripod joints
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to the field of universal joints, in particular to an axial movement tripod constant velocity universal joint, which specifically comprises: three post pot shells, tripod universal joint, jackshaft, for the shaft retaining ring and removal end dust cover, tripod universal joint install on the raceway of three post pot shells, and tripod universal joint suit is spacing on the jackshaft and through for the shaft retaining ring, is equipped with the draw-in groove that is used for connecting removal end dust cover on the outer wall of the first end of three post pot shells, its characterized in that still includes: and the sealing element is arranged on the end surface of the second end of the three-column tank shell and comprises a sealing end cover of which the end part is embedded on the end surface and a sealing ring which is abutted against the end part and the end surface of the sealing end cover. According to the scheme of the invention, the end face of the three-column tank shell and the sealing element are structurally improved, so that the sealing end cover and the three-column tank shell are clamped through structural arrangement, the sealing is prevented from being bonded by using a sealant, and meanwhile, the sealing ring is mutually abutted to realize a sealing effect.
Description
Technical Field
The invention relates to the field of universal joints, in particular to an axially moving tripod constant velocity universal joint.
Background
The universal joint is a part for realizing variable angle power transmission, is used for changing the position of the transmission axis direction, and is a joint part of a universal transmission device of an automobile driving system. The universal joint may be classified into a non-constant velocity universal joint, a quasi-constant velocity universal joint, and a constant velocity universal joint. The constant velocity universal joint means a joint in which an output shaft and an input shaft connected to the universal joint transmit motion at instantaneous angular velocities which are always equal, and includes a tripod type constant velocity universal joint, a straight raceway type constant velocity universal joint, and a slant raceway type constant velocity universal joint.
The tripod constant velocity universal joint is mainly composed of parts such as a tripod groove shell, a tripod joint, a ball ring, a roller pin retainer ring and a clamp spring. At present, the common failure mode is that the lane of the three-column groove shell of the ball ring is peeled off, which firstly appears as a depression on the lane because the ball ring runs continuously, and then is developed to be peeled off, and the failure is caused by insufficient heat treatment of the lane, insufficient lubricating grease or running under overload condition, etc.
The existing tripod constant velocity universal joint has defects in sealing, which can cause the loss of lubricating grease; firstly, an end cover of the ball joint is not fixedly connected with a three-column tank shell in a sealing way, and lubricating grease can run off from a gap between the end cover and the three-column tank shell in the continuous movement process of the ball ring; secondly, the end cover and the three-column tank shell are fixedly connected in a sealing mode through the sealant, the end cover and the three-column tank shell cannot be used for a long time, the sealant continuously slides and rubs in the working process of the universal joint, heat is generated to melt the sealant, the end cover falls off or a gap exists between the end cover and the three-column tank shell in a separation mode, and finally lubricating grease can still be lost.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the background art and to providing an axially moving tripod constant velocity joint.
To achieve the above object, the present invention provides an axially moving tripod constant velocity joint comprising: three post pot shells, tripod universal joint, jackshaft, for the shaft retaining ring and removal end dust cover, the tripod universal joint is installed on the raceway of three post pot shells, the suit of tripod universal joint is in on the jackshaft and spacing through for the shaft retaining ring, be equipped with on the outer wall of the first end of three post pot shells and be used for connecting the draw-in groove of removal end dust cover still includes: and the sealing element is arranged on the end surface of the second end of the three-column tank shell and comprises a sealing end cover of which the end part is embedded on the end surface and a sealing ring which is abutted against the end part of the sealing end cover and the end surface.
Preferably, the end face of the second end of the three-column groove shell is provided with a mounting groove, the sealing end cover comprises an end cover body and a mounting end connected with the end cover body, and the mounting end is fixedly embedded in the mounting groove.
Preferably, the mounting groove comprises a groove body and a check ring which is arranged at the end part of the groove body and used for limiting the mounting end.
Preferably, the mounting end comprises a first bent part extending into the groove body and a second bent part connected with the first bent part at an angle;
one end of the second bending part, which is far away from the first bending part, is abutted against the inner wall of the check ring.
Preferably, the first bending part and the second bending part are connected through an arc transition part.
Preferably, the sealing ring is arranged between the first bending part and the inner wall of the groove body.
Preferably, the first bending part and the inner wall of the groove body are provided with arc-shaped grooves which are provided with the outer contour of the sealing ring.
Preferably, the angle between the first bending part and the second bending part is 30-45 degrees.
Preferably, the angle between the first bending part and the inner wall of the groove body is 30-45 degrees.
Preferably, the angle between the second bending part and the inner wall of the groove body is 15-30 degrees.
Based on this, the beneficial effects of the invention are as follows:
according to the scheme of the invention, the sealing element is arranged and comprises a sealing end cover and a sealing ring, two end parts of the sealing end cover are abutted against the three-column tank shell, meanwhile, the sealing ring is arranged between the end part of the sealing end cover and the three-column tank shell, and the sealing ring is respectively abutted against the side surface of the end part of the sealing end cover and the inner wall of the three-column tank shell; in the working process of the universal joint, the sealing end cover is abutted against the three-column groove shell, so that the sealing end cover is fixedly connected with the three-column groove shell, the sealing end cover cannot easily fall off in the vibration process, meanwhile, a sealing space is formed in the three-column groove shell due to the arrangement of the sealing ring, lubricating grease cannot run off, and the failure problem that the tripod universal joint falls off from a ball path of the three-column groove shell due to the loss of the lubricating grease is reduced; meanwhile, by the scheme of the invention, the fixed sealing connection between the sealing element and the three-column tank shell is realized through the structural relation, and the problem of insecurity caused by connecting the sealing element and the three-column tank shell through the sealing glue in the prior art is solved.
Drawings
Fig. 1 schematically shows an overall structural view of an axially moving tripod constant velocity joint according to an embodiment of the present invention;
FIG. 2 is a schematic enlarged view of a portion of FIG. 1 where the seal is attached to the housing;
FIG. 3 is a schematic view showing the structure of the three-column cell shell in FIG. 2;
FIG. 4 is a schematic view of the seal of FIG. 3;
fig. 5 is a schematic view showing a connection structure of the first bent portion, the seal ring, and the groove body according to another embodiment of the present invention.
Description of reference numerals: three post pot shell 1, first end 101, draw-in groove 1011, second end 102, mounting groove 1021, cell body 10211, retaining ring 10212, three ball pin universal joint 2, sealing member 3, sealing end cover 301, end cover body 3011, installation end 3012, first kink 30121, second kink 30122, arc transition 30123, sealing washer 302.
Detailed Description
The content of the invention will now be discussed with reference to exemplary embodiments. It is to be understood that the embodiments discussed are merely intended to enable one of ordinary skill in the art to better understand and thus implement the teachings of the present invention, and do not imply any limitations on the scope of the invention.
As used herein, the term "include" and its variants are to be read as open-ended terms meaning "including, but not limited to. The term "based on" is to be read as "based, at least in part, on". The terms "one embodiment" and "an embodiment" are to be read as "at least one embodiment".
Fig. 1 is a schematic view showing the overall structure of an axially movable tripod constant velocity universal joint according to an embodiment of the present invention, fig. 2 is a schematic view showing a partially enlarged view of the joint of a seal member and a tripod in fig. 1, and as shown in fig. 1 and 2, the axially movable tripod constant velocity universal joint of the present invention includes:
three post pot shell 1, tripod universal joint 2, jackshaft (not marking in the picture), retaining ring for the shaft (not marking in the picture) and removal end dust cover (not marking in the picture), tripod universal joint 2 installs on the raceway of three post pot shell 1, and tripod universal joint 2 suit is spacing on the jackshaft and through the retaining ring for the shaft, is equipped with the draw-in groove 1011 that is used for connecting the removal end dust cover on the outer wall of the first end 101 of three post pot shell 1, still includes: the sealing element 3 is mounted on the end face of the second end 102 of the three-column tank shell 1, and the sealing element 3 comprises a sealing end cover 301 with the end part embedded on the end face and a sealing ring 302 abutted against the end part and the end face of the sealing end cover 301.
Specifically, a cavity is arranged in the three-column groove shell 1, the tripod universal joint 2 is installed in the cavity of the three-column groove shell 1, and meanwhile, an inwardly-recessed arc-shaped slideway is arranged on the inner wall of the three-column groove shell 1 and is in sliding connection with the end part of the tripod universal joint 2, so that the end part of the tripod universal joint 2 can do circular motion along the arc-shaped slideway of the three-column groove shell 1; and because the central shaft and the transmission shaft are fixedly connected with the two sides of the tripod universal joint 2 respectively, when the other end of the central shaft is limited and can not move, along with the movement of the end part of the tripod universal joint 2 along the arc-shaped slideway of the three-column groove shell 1, one end of the transmission shaft and the tripod universal joint 2 are fixed and move along with the movement of the tripod universal joint 2, and the other end of the transmission shaft does circular motion with the central shaft as the center of a circle, so that a component connected with the other end of the transmission shaft, such as a tire, can do circular motion with the central shaft as the center of a circle, thereby realizing that when a vehicle runs in a zone with uneven road surface and uneven height, the vehicle can still drive stably.
The three-column tank shell 1 comprises a first end 101 and a second end 102 which are oppositely arranged on two sides of the three-column tank shell 1, a clamping groove 1011 is formed in the outer wall of the three-column tank shell 1 close to the first end 101, and the three-column tank shell can be fixedly connected with a movable end dust cover to protect a transmission shaft or parts such as an intermediate shaft and a connecting part from dust.
The sealing element 3 is arranged on the end surface of the second end 102 of the three-column tank shell 1 and comprises a sealing end cover 301 and a sealing ring 302 which is respectively abutted against the sealing end cover 301 and the end surface of the second end 102 of the three-column tank shell 1; two ends of end cover 301 and 1 butt of three post pot shells, make end cover 301 and 1 fixed connection of three post pot shells, shelter from the inside cavity of three post pot shells 1, the side of sealing washer 302 is by end cover 301 and 1 butt of three post pot shells, make three post pot shells 1 and end cover 301 sealing connection, make the inside cavity of three post pot shells 1 form sealed environment, in tripod universal joint 2 motion process, can not make lubricating grease run off from three post pot shells 1, effectively avoid the inside lubricating grease of three post pot shells 1 to reduce, can not make because of the friction increase between the inner wall of tripod universal joint 2 and three post pot shells 1, cause wearing and tearing for a long time, tripod universal joint 2 peels off from the lane of three post pot shells 1 and causes the part problem of inefficacy.
Fig. 3 shows a partial enlarged view of the three-column casing in fig. 2, and fig. 4 shows a partial enlarged view of the sealing member in fig. 2, as shown in fig. 3 and 4, a mounting groove 1021 is provided on an end surface of the second end 102 of the three-column casing 1, the sealing end cap 301 includes an end cap body 3011 and a mounting end 3012 connected to the end cap body 3011, and the mounting end 3012 is fixedly embedded in the mounting groove 1021.
Specifically, the mounting groove 1021 is arranged on the end face of the second end 102 of the three-column groove shell 1, and is recessed towards one side close to the first end 101 of the three-column groove shell 1, and meanwhile, a certain distance exists between the mounting groove 1021 and the inner side wall and the outer side wall of the three-column groove shell 1 respectively; the sealing end cover 301 comprises an end cover body 3011 and installation ends 3012 which are arranged at two ends of the end cover body 3011 and integrally connected with the end cover body 3011, wherein the installation ends 3012 can be completely placed in the installation grooves 1021 and are abutted by side walls of the installation grooves 1021 to limit displacement of the installation ends 3012; the arrangement is such that the sealing end cover 301 covers the opening at the second end 102 of the three-column tank shell 1 to prevent the grease from being exposed.
The mounting groove 1021 includes a channel 10211 and a stop 10212 at an end of the channel 10211 for limiting the position of the mounting end 3012.
Specifically, the slot 10211 is used for placing the installation end 3012, and the connection position between two adjacent inner walls of the slot 10211 is set to be arc-shaped; the retainer ring 10212 is located at the end of the tank body 10211, one end of the retainer ring is fixedly connected with the tank body 10211, and the other end of the retainer ring extends to the center of the second end 102 for a certain distance; when the installation end 3012 is placed in the slot body 10211, the end of the installation end 3012 abuts against the retainer 10212, and meanwhile, the inner wall of the slot body 10211 close to the second end 102 also abuts against the side wall of the installation end 3012, so that the sealing end cap 301 cannot move close to or away from the first end 101, and the fixed connection of the sealing end cap 301 is realized.
The mounting end 3012 includes a first bent portion 30121 extending into the slot 10211 and a second bent portion 30122 connected at an angle to the first bent portion 30121;
one end of the second bent portion 30122 away from the first bent portion 30121 abuts against an inner wall of the retaining ring 10212.
The first bent portion 30121 and the second bent portion 30122 are connected by an arc transition portion 30123.
Specifically, the first bending portion 30121, the arc transition portion 30123 and the second bending portion 30122 are integrally formed and connected, and the first bending portion 30121 is integrally formed and connected with the end cover body 3011; when the installation end 3012 enters the slot body 10211, the second bending part 30122 abuts against the retainer ring 10212, and the side wall of the arc-shaped transition part 30123 abuts against the inner wall of the slot body 10211; when the end cap 301 moves away from the first end 101, the stopper 10212 stops the second bent portion 30122 to limit the displacement thereof; when the end cap 301 moves horizontally along the end face of the second end 102, the inner wall of the channel 10211 also blocks the arc-shaped transition portion 30123, so as to limit the displacement thereof, and finally, the end cap 301 is fixed.
Meanwhile, because the second bending part 30122 and the first bending part 30121 are connected at an angle through the arc-shaped transition part 30123, an included angle exists between the side walls of the first bending part 30121 and the slot body 10211 close to the circle center of the second end 102, an included angle exists between the side walls of the second bending part 30122 and the slot body 10211 far away from the circle center of the second end 102, so that the first bending part 30121 and the second bending part 30122 both have deformable spaces, and the distance between the connecting part of the second bending part 30122 and the arc-shaped transition part 30123 and the side wall of the slot body 10211 close to the circle center of the second end 102 is smaller than the distance between the side walls of the retainer ring 10212 and the slot body 10211 close to the circle center of the second end 102, the distance between the one end of the second bending part 30122 far away from the arc-shaped transition part 30123 and the side wall of the slot body 10211 close to the circle center of the second end 102 is greater than the distance between the retainer ring 10212 and the side wall of the slot body 10211 close to the circle center of the second end 102.
When the mounting end 3012 is mounted, the end cap 301 is pressed toward the side near the first end 101, and the second bent portion 30122 contacts the retaining ring 10212, in the process of continuously pressing the sealing end cap 301, because an included angle exists between the second bending portion 30122 and the side wall of the slot body 10211 far from the center of the second end 102, the pressing force of the retainer ring 10212 on the second bending portion 30122 is continuously increased, so that the end of the second bending portion 30122 far from the arc-shaped transition portion 30123 is bent to the side close to the first bending portion 30121, meanwhile, an included angle exists between the first bending portion 30121 and the side wall of the slot 10211 near the center of the second end 102, the first bending portion 30121 is also bent toward the inner wall of the slot 10211, so that one end of the second bending portion 30122 away from the arc-shaped transition portion 30123 can slide toward the inside of the slot body 10211 along the sidewall of the retainer ring 10212 near the center of the second end 102 until the second bending portion 30122 completely enters the slot body 10211; when the end of the second bending portion 30122 away from the arc-shaped transition portion 30123 is not in contact with the sidewall of the retainer ring 10212 near the center of the second end 102, due to the elastic action of the material of the second bending portion 30122, the second bending portion 30122 is restored to the original state, the distance from the end of the second bending portion 30122 away from the arc-shaped transition portion 30123 to the sidewall of the slot body 10211 near the center of the second end 102 is greater than the distance from the retainer ring 10212 to the sidewall of the slot body 10211 near the center of the second end 102, so that the end of the second bending portion 30122 away from the arc-shaped transition portion 30123 abuts against the inner wall of the retainer ring 10212 near the slot body 10211, the mounting end 3012 cannot move directly out of the slot body 10211, the mounting end 3012 is locked, and the sealing end cap 301 is further fixed.
When the sealing end cover 301 is to be disassembled, the first bending part 30121 is pressed, so that the first bending part 30121 is bent, and then the distance from the end of the second bending part 30122, which is far away from the arc transition part 30123, to the side wall of the slot body 10211, which is close to the circle center of the second end 102, is reduced, the end of the second bending part 30122 can be abutted to the side wall of the retainer ring 10212, which is close to the circle center of the second end 102, and then the second bending part 30122 can slide outwards along the side wall of the retainer ring 10212, so that the disassembling operation of the sealing end cover 301 is realized.
And the arc surface of the arc transition portion 30123 can be fully contacted with the inner wall of the slot 10211 to form surface contact, so as to increase the stressed area, and meanwhile, due to the arc surface of the arc transition portion 30123, the connection between the first bending portion 30121 and the second bending portion 30122 is buffered, so as to reduce the stress at the connection between the first bending portion 30121 and the second bending portion 30122, increase the strength of the mounting end 3012, and prevent the first bending portion 30121 and the second bending portion 30122 from being broken due to too large stress, so that the sealing end cap 301 falls off.
Further, the sealing ring 302 is disposed between the first bent portion 30121 and the inner wall of the groove body 10211, and abuts against the inner wall of the groove body 10211 and the side wall of the first bent portion 30121, respectively.
In the first embodiment of the present invention, the side of the first bent portion 30121 in contact with the sealing ring 302 is a flat side, and the side wall of the groove 10211 in contact with the sealing ring 302 is a flat side; when the sealing end cover 301 is installed, the sealing ring 302 is placed in the groove body 10211, then the sealing end cover 301 is installed, when the installation end 3012 of the sealing end cover 301 is completely placed in the groove body 10211, the side wall of the first bent part 30121 close to one side of the groove body 10211 is abutted to the sealing ring 302 to form line contact, and meanwhile, the groove body 10211 is abutted to the sealing ring 302 to form line contact; after the mounting end 3012 is blocked by the retaining ring 10212, the first bent portion 30121 presses the sealing ring 302, and the groove 10211 also presses the sealing ring 302 to form a sealing structure, so that the internal cavity of the three-column groove shell 1 is sealed by the sealing ring 302, the sealing end cover 301 and the groove 10211, and thus the problem of leakage of grease is prevented.
Fig. 5 is a schematic view showing a connection structure of a first bent portion, a seal ring, and a groove body according to another embodiment of the present invention, as shown in fig. 5:
the first bending portion 30121 and the inner wall of the slot 10211 are both provided with an arc-shaped slot configured with the outer contour of the sealing ring 302.
In the second embodiment of the present invention, the surface of the first bent portion 30121 contacting the sealing ring 302 is a first arc-shaped groove (not shown) similar to the outer contour of the sealing ring 302, and the surface of the groove 10211 contacting the sealing ring 302 is also a second arc-shaped groove (not shown) similar to the outer contour of the sealing ring 302; first arc-shaped groove is sunken to the direction of keeping away from cell body 10211, the second arc-shaped groove is sunken to the direction of keeping away from first kink 30121, so set up, when installing end cover 301, put into behind the cell body 10211 sealing washer 302 earlier, install end cover 301 again, after the cell body 10211 is put into completely to installation end 3012 of end cover 301, first kink 30121 extrudes sealing washer 302 with cell body 10211 lateral wall, and because the region that first kink 30121 and cell body 10211 contact with sealing washer 302 sets up to the arc wall, make sealing washer 302 enter into between first arc wall and the second arc wall, make and form face contact between first kink 30121 and cell body 10211 and the sealing washer 302, can compare in the scheme of line contact and increase area of contact, make the sealed effect to the inside cavity of three-column tank shell 1 increase, further reduce the possibility of leaking lubricating grease.
It should be noted that both side walls of the tank body 10211 can abut against the sealing ring 302, and arc-shaped grooves can be formed on both side walls of the tank body 10211, so that the contact area between the inner wall of the tank body 10211 and the sealing ring 302 is further increased, and the sealing effect is increased.
Further, in the third embodiment of the present invention, an inclined plane is disposed between the inner wall of the slot 10211 near the center of the second end 102 and the adjacent inner wall to vertically connect the two side walls, and the inclined plane is consistent with the inclination angle of the first bending part 30121; when the sealing ring 302 is placed in the tank body 10211, the sealing ring 302 can be abutted by the inclined surface and the first bent portion 30121, thereby realizing sealing; meanwhile, the arc-shaped groove is also arranged in the contact area between the inclined surface and the first bending part 30121 and the sealing ring 302, the arc-shaped groove is similar to the outer contour of the sealing ring 302, the contact area between the inclined surface and the sealing ring 302 can be increased, the sealing effect is improved, and meanwhile, compared with the first implementation mode and the second implementation mode, the space between the first bending part 30121 and the inner wall of the groove body 10211 is reduced, so that the extrusion force of the first bending part 30121 and the inner wall of the groove body 10211 on the sealing ring 302 is increased, and a better sealing effect is achieved.
Further, the angle between the first bending portion 30121 and the second bending portion 30122 is 30-45 degrees, and thus the second bending portion 30122 can be bent toward the direction close to the first bending portion 30121, and the angle is not too small, the second bending portion 30122 is parallel to the side wall of the retainer ring 10212 near the center of the circle of the second end 102, so that the second bending portion 30122 cannot be locked with the retainer ring 10212, and the length of the second bending portion 30122 is reduced because the angle is too large, so that the second bending portion 30122 is not easily bent toward the direction close to the first bending portion 30121, and the difficulty in installing the sealing end cap 301 is increased.
Furthermore, the angle between the first bending portion 30121 and the inner wall of the slot body 10211 is 30 to 45 degrees, so that the arrangement can prevent the projection length of the first bending portion 30121 on the opening plane of the slot body 10211 from increasing when the included angle between the first bending portion 30121 and the inner wall of the slot body 10211 is too large, in order to enable the installation end 3012 to enter the slot body 10211, only the length of the second bending portion 30122 can be reduced, and after the length of the second bending portion 30122 is reduced, the difficulty of elastic deformation of the installation end is increased, when the sealing end cover 301 is installed, the installation end 3012 can enter the slot body 10211 only by squeezing the sealing end cover 301 with a greater force, and the first bending portion 30121 and the second bending portion 30122 may break, thereby damaging the device; when the included angle between the first bending portion 30122 and the inner wall of the tank body 10211 is too small, the space between the first bending portion 30121 and the tank body 10211 is reduced, the size of the sealing ring 302 is not changed, the installation end 3012 is blocked and cannot completely enter the tank body 10211, the sealing performance of the inner cavity of the three-column tank shell 1 cannot be guaranteed, and then the problem of lubricating grease loss is caused.
The angle between the second bent portion 30122 and the inner wall of the slot body 10211 is 15-30 degrees, so that the arrangement can prevent the contact area between the second bent portion 30122 and the side wall of the retainer ring 10212 near the center of the second end 102 from increasing when the included angle between the second bent portion 30122 and the inner wall of the slot body 10211 is too small, which increases the friction area between the two and facilitates the abrasion of parts, and when the sealing end cap 301 is disassembled, a larger pressing force needs to be applied to the first bent portion 30121 to reduce the distance from the end portion of the second bent portion 30122 to the slot body 10211 near the center of the second end 102, so that the installation end 3012 is moved out of the slot body 10211, and the problem of fracture at the connection portion between the first bent portion 30121 and the end cap body 3011 may also be caused; when the included angle between the second bent portion 30122 and the inner wall of the slot 10211 is too large, on the premise that the first bent portion 30121 is not changed, in order to enable the mounting end 3012 to enter the slot 10211, the length of the second bent portion 30122 needs to be shortened, and such an arrangement may cause a problem that the second bent portion 30122 is not easily bent, and also may cause a problem that the connection between the first bent portion 30121 and the second bent portion 30122 is broken because a large force is required to press and mount the sealing end cap 301.
In the three schemes of limiting the included angle between the first bent part 30121 and the inner wall of the slot body 10211, between the first bent part 30121 and the second bent part 30122, and between the second bent part 30122 and the inner wall of the slot body 10211, because the first bent part 30121 and the second bent part 30122 are connected at an angle, a triangular space is formed between the first bent part 30121 and the second bent part 30122 and the opening plane of the slot body 10211, so that only two included angle angles among the three types are required to be limited, and the size of the remaining included angle is fixed without being limited.
In summary, the end cover 301 of the universal joint and the structure of the end of the three-column tank shell 1 connected to the end cover 301 are improved, the tank 10211 is arranged on the end face of the second end 102 of the three-column tank shell 1 where the end cover 301 is installed, meanwhile, the baffle 10212 is arranged on the inner wall of the tank 10211 far away from the circle center of the second end 102, and the baffle 10212 extends a certain distance to the circle center of the second end 102, so that the installation end 3012 of the end cover 301 can be blocked by the baffle 10212 after entering the tank 10211, the displacement of the end cover 301 is limited, the end cover 301 can be fixedly connected with the three-column tank shell 1 through the structural arrangement, the connection between the end cover 301 and the three-column tank shell 1 through the sealant in the prior art is avoided, and the problem that the end cover 301 falls off due to the insecure adhesion of the sealant can be avoided; set up sealing washer 302 between the inner wall of erection end 3012 and cell body 10211 simultaneously, sealing washer 302 respectively with cell body 10211 inner wall, mutual butt of erection end 3012, the extrusion for the inside cavity of three post groove shells 1 forms airtight space, effectively avoids three ball round pin universal joint 2 to lose the inefficacy problem that causes because of lubricating grease runs off in the motion process, has solved among the prior art sealed glue and has melted the lubricating grease that makes between end cover 301 and the three post groove shells 1 insecure cause because of overheated and run off the problem.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. An axially moving tripod constant velocity joint comprising: three post pot shells, tripod universal joint, jackshaft, for the shaft retaining ring and removal end dust cover, the tripod universal joint is installed on the raceway of three post pot shells, the suit of tripod universal joint is in on the jackshaft and spacing through for the shaft retaining ring, be equipped with on the outer wall of the first end of three post pot shells and be used for connecting the draw-in groove of removal end dust cover, its characterized in that still includes: and the sealing element is arranged on the end surface of the second end of the three-column tank shell and comprises a sealing end cover of which the end part is embedded on the end surface and a sealing ring which is abutted against the end part of the sealing end cover and the end surface.
2. The axially movable tripod constant velocity joint of claim 1, wherein an installation groove is provided on an end face of the second end of the tripod housing, and the end cap includes an end cap body and a mounting end connected to the end cap body, the mounting end being fixedly engaged in the installation groove.
3. The axially moving tripod constant velocity joint of claim 2 wherein said mounting groove includes a groove and a retaining ring at an end of the groove for retaining said mounting end.
4. The axially moving tripod constant velocity joint of claim 3, wherein said mounting end comprises a first bend extending into said groove and a second bend angularly connected to said first bend;
the second bending part is far away from one end of the first bending part and is abutted against the inner wall of the check ring.
5. The axially moving tripod constant velocity joint of claim 4, wherein said first bend and said second bend are connected by an arcuate transition.
6. The axially moving tripod constant velocity joint of claim 4 wherein said seal ring is disposed between said first bend and an inner wall of said groove.
7. The axially movable tripod constant velocity joint according to claim 6, wherein the first bending portion and the inner wall of the groove body are each provided with an arc-shaped groove having an outer contour of the seal ring.
8. The axially moving tripod constant velocity joint of claim 4, wherein the angle between said first and second bends is 30-45 degrees.
9. The axially moving tripod constant velocity joint of claim 4, wherein the angle between the first bend and the inner wall of the groove is 30-45 degrees.
10. An axially moving tripod constant velocity joint according to any one of claims 4 to 9, wherein the angle between the second bend and the inner wall of the groove is 15 to 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211036561.8A CN115111278A (en) | 2022-08-29 | 2022-08-29 | Axially moving tripod constant velocity joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211036561.8A CN115111278A (en) | 2022-08-29 | 2022-08-29 | Axially moving tripod constant velocity joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115111278A true CN115111278A (en) | 2022-09-27 |
Family
ID=83336257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211036561.8A Pending CN115111278A (en) | 2022-08-29 | 2022-08-29 | Axially moving tripod constant velocity joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115111278A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052807A (en) * | 2023-10-11 | 2023-11-14 | 万向钱潮股份公司 | Dustproof universal joint device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011163410A (en) * | 2010-02-08 | 2011-08-25 | Jtekt Corp | Sliding tripod type constant velocity joint |
| CN210637373U (en) * | 2019-05-21 | 2020-05-29 | 海宁科巍轴承科技有限公司 | Low-temperature-resistant high-molecular-weight polypropylene bearing |
| CN211820456U (en) * | 2019-10-31 | 2020-10-30 | 车金喜汽配股份有限公司 | Novel inner ball cage |
| CN114198416A (en) * | 2021-12-21 | 2022-03-18 | 万向钱潮股份有限公司 | Axially-movable tripod constant velocity universal joint structure |
-
2022
- 2022-08-29 CN CN202211036561.8A patent/CN115111278A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011163410A (en) * | 2010-02-08 | 2011-08-25 | Jtekt Corp | Sliding tripod type constant velocity joint |
| CN210637373U (en) * | 2019-05-21 | 2020-05-29 | 海宁科巍轴承科技有限公司 | Low-temperature-resistant high-molecular-weight polypropylene bearing |
| CN211820456U (en) * | 2019-10-31 | 2020-10-30 | 车金喜汽配股份有限公司 | Novel inner ball cage |
| CN114198416A (en) * | 2021-12-21 | 2022-03-18 | 万向钱潮股份有限公司 | Axially-movable tripod constant velocity universal joint structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052807A (en) * | 2023-10-11 | 2023-11-14 | 万向钱潮股份公司 | Dustproof universal joint device |
| CN117052807B (en) * | 2023-10-11 | 2023-12-29 | 万向钱潮股份公司 | Dustproof universal joint device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115111278A (en) | Axially moving tripod constant velocity joint | |
| CA2367638C (en) | Attachment structure for joint boot | |
| EP3489536B1 (en) | Compact boot of a constant velocity joint | |
| JP2007504410A (en) | Constant velocity joint with sealing device | |
| US7582020B2 (en) | Boot for universal joint | |
| CN107104525B (en) | Hybrid module with housing and stator frame | |
| WO2013058059A1 (en) | Constant velocity universal joint | |
| CN220081982U (en) | Dust cover structure of constant velocity universal joint of motor vehicle | |
| KR100822573B1 (en) | Boot for constant velocity joint | |
| KR100323078B1 (en) | boot of ring clamp intestine type | |
| JP3839530B2 (en) | Fitting boots | |
| CN220505629U (en) | Universal dust cover for constant velocity universal joint | |
| CN218913594U (en) | Dual-mass flywheel | |
| CN220622537U (en) | A dirt proof boot for drive shaft | |
| CN210799805U (en) | Dust cover of universal joint | |
| KR200322708Y1 (en) | Constant velocity joint having function for forbidding oil leakage | |
| CN219062258U (en) | Tripod head assembly | |
| CN212106695U (en) | Anti-fracture dustproof sleeve | |
| KR200219820Y1 (en) | Tongue Clamp of Material Joint Boot | |
| KR200322709Y1 (en) | Boot for forbidding oil leakage for a constant velocity joint | |
| JP2013234733A (en) | Constant velocity universal joint | |
| KR19990010478U (en) | Joint boot for constant velocity joints | |
| KR100412385B1 (en) | Constant velocity ball joint | |
| KR200163226Y1 (en) | Boot structure of universal joint | |
| CN113202806A (en) | Water pump shaft coupling bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |