CN114893510A - Lightweight tripod constant velocity universal joint assembly - Google Patents

Abstract

The invention relates to the technical field of universal joints, in particular to a lightweight tripod constant velocity universal joint assembly, which comprises a tripod shell, wherein a tripod is arranged in the tripod shell; the first rotating shaft is fixedly connected to the center of the outer surface of one end of the three-pin frame; the second rotating shaft is rotatably connected to the center of the outer surface of the other end of the three-pin frame; the pin shafts are uniformly distributed on the outer side surfaces of the three pin frames in an annular shape; the rolling ring is rotatably connected to the outer circular surface at one end of the pin shaft; and a tightening mechanism. When the spring is placed in the sleeve box block, the spring is in a compressed state, when the rolling ring extrudes the rolling ball at one end, the rolling ball at the other end is tightly attached to the rolling ring under the pushing of the spring, so that the rolling ring cannot be loosened with a contacted part, even if the rolling ring generates a certain amount of deformation due to friction, the compressed spring can push the arc-shaped sliding sheet to drive the rolling ball to be tightly attached to the rolling ring, and the problem that the rolling ring is loosened with the contacted part is avoided.

Description

Lightweight tripod constant velocity universal joint assembly

Technical Field

The invention relates to the technical field of universal joints, in particular to a lightweight tripod constant velocity universal joint assembly.

Background

The universal joint is a universal joint, is a part for realizing variable-angle power transmission, is used for changing the position of the direction of a transmission axis, is a joint part of a universal transmission device of an automobile driving system, and is called a universal joint transmission device by combining the universal joint and a transmission shaft.

In addition, the tripod universal joint belongs to common constant velocity universal joints, and the common tripod universal joint comprises a tripod frame, wherein pin shafts are arranged at trisection positions on the tripod frame, and rollers are sleeved on the pin shafts; the existing tripod type constant velocity universal joint assembly has the problem that after the universal joint assembly is used for a period of time, the inside of the universal joint is loosened due to friction, so that a transmission device connected with the universal joint deviates and simultaneously shakes violently, and in addition, a denudable sound can be generated in the transmission process.

To this end, a lightweight tripod constant velocity joint assembly is proposed.

Disclosure of Invention

The present invention is directed to a lightweight tripod constant velocity joint assembly that solves the problems set forth in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a lightweight tripod constant velocity universal joint assembly comprises a tripod shell, wherein a tripod is arranged in the tripod shell; the first rotating shaft is fixedly connected to the center of the outer surface of one end of the three-pin frame; the second rotating shaft is rotatably connected to the center of the outer surface of the other end of the three-pin frame; the pin shafts are uniformly distributed on the outer side surfaces of the three pin frames in an annular shape; the rolling ring is hinged to the outer circular surface of one end of the pin shaft in a ball joint mode; and a jacking mechanism; the tight mechanism in top rotates to be connected at the surface of rolling the ring, the tight mechanism in top one side surface and tripod shell fixed connection, the tight mechanism in top is used for preventing the universal joint not hard up problem when using from appearing.

In the existing tripod constant velocity universal joint assembly, after the universal joint is used for a period of time, the inside of the universal joint is loosened due to friction, so that a transmission device for connecting the universal joint deviates and simultaneously shakes violently, and in addition, a denuded and denuded sound can be generated in the transmission process; when the universal joint is subjected to deflection transmission, the deflection of the first rotating shaft can drive the tripod head and the internal components and the second rotating shaft to deflect, the tripod head can drive the internal rolling ring to extrude the jacking mechanism when the deflection occurs, and the jacking mechanism is always attached to the rolling ring, so that the problem of shaking during transmission due to the fact that the rolling ring and the tripod head are loosened during transmission is solved.

Preferably, the jacking mechanism comprises a box sleeving block, a three-fork movable cavity, a ball, an arc-shaped sliding sheet and a spring;

evenly be fixed with three sets of cover box pieces in the tripod key shell, the inside central point of cover box piece puts and has seted up trident activity chamber, the round pin hub connection rolls the inside central point that the one end of ring extended to trident activity chamber and puts, the excircle of rolling the ring is personally submitted the annular and evenly is provided with three group's balls, a side of ball is provided with the arc gleitbretter, the central point of the arc gleitbretter cambered surface puts fixedly connected with spring, the one end and the trident activity chamber fixed connection of spring.

When the jacking mechanism works, the universal joint generates deviation transmission in different directions, the rolling ring can extrude balls in different directions, when the rolling ring extrudes the balls, the balls can move towards the fork ways which drive the arc-shaped sliding sheet to the three-fork movable cavity and extrude the springs, in addition, the springs are in a compressed state when being placed in the box block, when the rolling ring extrudes the balls at one end, the balls at the other end can cling to the rolling ring under the pushing of the springs, so that the rolling ring cannot loosen with the contacted parts, even if the rolling ring generates a certain amount of deformation due to friction, the compressed springs can also push the arc-shaped sliding sheet to drive the balls to cling to the rolling ring, thereby avoiding the loosening of the parts which are contacted with the rolling ring, in addition, the arc-shaped structural design of the outer circle surface layer of the rolling ring has less contact area with the balls, so that a certain amount of friction is reduced, thereby reducing the deformation generated by friction, the service life of the universal joint is prolonged.

Preferably, three groups of sliding grooves are uniformly formed in the inner wall of the tripod head shell, a sliding block is arranged inside each sliding groove, the outer surface of one side of each sliding block is fixedly connected with the sleeving box block, two groups of bolts are in threaded connection with the outer surface of one side of each sliding block, and one end of each bolt extends to the outside of the tripod head shell.

In order to conveniently take out the components in the tripod shell for maintenance, an operator needs to twist off the bolts and then pull the first rotating shaft to drive the sliding block to take out the components along the sliding groove, so that the components on the tripod frame are communicated and taken out, and the operators can maintain the components, and the operation is simple and convenient.

Preferably, a sunk groove is formed in the side surface of the tripod head shell at a position close to the first bolt.

In order to improve the attractiveness of bolt installation, when the bolt is screwed down, the bolt can enter the sinking groove, so that the problem of unattractive appearance caused by the fact that the tail part of the bolt is protruded is solved.

Preferably, the inside both ends of spring all are provided with the limit post, and a set of the one end and the arc gleitbretter fixed connection of limit post, another group the other end and the trident inner wall fixed connection who moves about the chamber of limit post.

When the universal joint deflects, the deformation of the spring is easy to be overlarge due to the compression of the spring, and the spring loses deformation.

Preferably, the flexible rubber is fixedly connected to the center of the outer surface of one side of the limiting column.

When the two groups of limiting columns are contacted, abnormal sound can be generated due to impact, when the limiting columns are contacted, the soft rubber arranged in the invention plays a role in buffering movement, and simultaneously, the problem of rigid impact generated when the two groups of limiting columns are contacted is avoided, thereby solving the problem of abnormal sound.

Preferably, a cavity is formed in the center of the outer surface of one end of the pin shaft, and a permanent magnet block is fixedly connected to the inner bottom of the cavity.

In order to improve the smoothness of transmission in the process of universal joint transmission, a layer of lubricating grease is generally coated inside the universal joint to ensure the smoothness of the universal joint during transmission, but scrap iron is generated by friction when the universal joint moves, the iron chips run to all parts along with the grease in the process of external joint transmission, so that the lubricating property of the grease is reduced, the universal joint is easy to clamp during transmission, the cavity formed by the universal joint reduces the weight of the universal joint and saves materials, in addition, the permanent magnets arranged in the cavity can adsorb iron chips in surrounding grease, the grease flows in the process of outward joint movement and passes through the grease at the opening of the cavity, the iron filings in the grease can be adsorbed by the permanent magnet, so that the content of the iron filings in the grease is reduced, the lubricating property of the grease and the smoothness of the universal joint are further ensured, and the problem of abnormal sound caused by overlarge friction is also avoided.

Preferably, the permanent magnet blocks are designed in a wing-shaped structure.

In order to improve the content of the permanent magnet blocks adsorbing iron filings, the permanent magnet blocks are designed in a wing-shaped structure, so that the surface area of the permanent magnet blocks is increased, and the large surface area of the permanent magnet blocks can also increase the content of the iron filings adsorbed.

Preferably, the outer surface of the tripod head shell is wrapped with a layer of corrugated pipe.

Because the universal joint is generally in a half-open state, dust in the air can easily enter the grease in the universal joint, and the grease is mixed with the dust to reduce the lubricating property of the grease.

Preferably, the outer circular surfaces of the first rotating shaft and the second rotating shaft are close to one end and fixedly connected with a blocking ring, and the outer circular surface of the blocking ring is designed to be of a convex arc structure.

When the corrugated pipe is fixed by the hoop, in order to further improve the fixing effect of the hoop, the blocking ring is wrapped in the corrugated pipe when the corrugated pipe is fixed, and even if the hoop is slightly loosened to drive the corrugated pipe to move, the corrugated pipe is also blocked by the blocking ring, so that the problem that the corrugated pipe moves is avoided, the universal energy-saving normal deflection is ensured, and in addition, the outer circular surface of the blocking ring adopts the convex arc structural design, and the problem that the corrugated pipe is cut by edges and corners is avoided.

Compared with the prior art, the invention has the beneficial effects that:

the spring is in a compressed state when being placed in the sleeve box block, when the rolling ring extrudes the rolling ball at one end, the rolling ball at the other end can be tightly attached to the rolling ring under the pushing of the spring, so that the rolling ring cannot be loosened with a contacted part, even if the rolling ring deforms for a certain amount due to friction, the compressed spring can push the arc-shaped sliding sheet to drive the rolling ball to be tightly attached to the rolling ring, and therefore the problem that the rolling ring is loosened with the contacted part is solved.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the tripod head of the present invention;

FIG. 3 is an enlarged view taken at point A of FIG. 2 in accordance with the present invention;

FIG. 4 is a cross-sectional view taken at C-C of FIG. 2 in accordance with the present invention;

FIG. 5 is an enlarged view taken at point B of FIG. 3 in accordance with the present invention;

fig. 6 is a perspective view of a permanent magnet of the present invention;

fig. 7 is a front view of the bellows of the present invention wrapped around the outside of the tripod head.

In the figure: 1. a first rotating shaft; 2. a three-pin frame; 3. a tripod shell; 4. a second rotating shaft; 5. a pin shaft; 6. rolling a ring; 7. a jacking mechanism; 71. sleeving a box block; 72. a trigeminal active cavity; 73. a ball bearing; 74. an arc-shaped sliding sheet; 75. a spring; 8. defining a column; 9. soft rubber; 10. a chute; 11. a slider; 12. a bolt; 13. a cavity; 14. a permanent magnet block; 15. sinking a groove; 16. a barrier ring; 17. a bellows.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Referring to fig. 1 to 7, the present invention provides a lightweight tripod constant velocity universal joint assembly, comprising:

a lightweight tripod constant velocity universal joint assembly, as shown in fig. 1 and 2, includes a tripod housing 3, the tripod housing 3 having a tripod 2 disposed therein; the first rotating shaft 1 is fixedly connected to the center of the outer surface of one end of the three-pin frame 2; the second rotating shaft 4 is rotatably connected to the center of the outer surface of the other end of the three-pin frame 2; the pin shafts 5 are uniformly distributed on the outer side surface of the three-pin frame 2 in an annular shape; the rolling ring 6 is hinged to the outer circular surface of one end of the pin shaft 5 in a ball joint mode; and a jacking mechanism 7; the tight mechanism 7 in top rotates to be connected at the surface of rolling ring 6, the tight mechanism 7 in top one side surface and tripod shell 3 fixed connection, tight mechanism 7 in top is used for preventing the universal joint not hard up problem from appearing when using.

In the existing tripod constant velocity universal joint assembly, after the universal joint is used for a period of time, the inside of the universal joint is loosened due to friction, so that a transmission device for connecting the universal joint deviates and simultaneously shakes violently, and in addition, a denuded and denuded sound can be generated in the transmission process; when the universal joint of the invention generates deflection transmission, the deflection of the first rotating shaft 1 can drive the tripod head 3 and internal components and the second rotating shaft 4 to deflect, the tripod head 2 can drive the internal rolling ring 6 to extrude the jacking mechanism 7 when the deflection occurs, and the jacking mechanism 7 is always attached to the rolling ring 6, so that the problem of shaking caused by the looseness of the rolling ring 6 and the tripod head 3 during transmission is avoided.

As an embodiment of the present invention, as shown in fig. 2, fig. 3, and fig. 4, the tightening mechanism 7 includes a casing block 71, a three-way movable cavity 72, a ball 73, an arc-shaped sliding piece 74, and a spring 75;

evenly be fixed with three sets of cover box pieces 71 in the tripod shell 3, the inside central point of cover box piece 71 puts and has seted up trident activity chamber 72, the inside central point that the one end of round pin axle 5 connection rolling ring 6 extended to trident activity chamber 72 puts, the excircle of rolling ring 6 is personally submitted the annular and evenly is provided with three sets of balls 73, a side of ball 73 is provided with arc gleitbretter 74, the central point of the arc gleitbretter 74 cambered surface puts fixedly connected with spring 75, spring 75's one end and trident activity chamber 72 fixed connection.

When the jacking mechanism 7 works, the universal joint of the invention generates deviation transmission in different directions, the rolling ring 6 can extrude the balls 73 in different directions, when the rolling ring 6 extrudes the balls 73, the balls 73 can drive the arc-shaped sliding sheet 74 to move in a fork way of the three-fork movable cavity 72 and extrude the spring 75 at the same time, in addition, the spring 75 is in a compressed state when being placed in the box set block 71, when the rolling ring 6 extrudes the balls 73 at one end, the balls 73 at the other end can cling to the rolling ring 6 under the pushing of the spring 75, so that the rolling ring 6 cannot be loosened with a contacted part, even if the rolling ring 6 generates a certain amount of deformation due to friction, the compressed spring 75 can also push the arc-shaped sliding sheet 74 to drive the balls 73 to cling to the rolling ring 6, thereby avoiding the problem that the rolling ring 6 is loosened with the contacted part, in addition, the design of the arc-shaped structure of the excircle surface layer of the rolling ring 6 has a small contact area with the balls 73, and a certain amount of friction is reduced, so that the deformation caused by friction is reduced, and the service life of the universal joint is prolonged.

As an embodiment of the present invention, as shown in fig. 2, three sets of sliding grooves 10 are uniformly formed on an inner wall of the tripod shell 3, a sliding block 11 is disposed inside the sliding grooves 10, an outer surface of one side of the sliding block 11 is fixedly connected to a sleeve block 71, an outer surface of one side of the sliding block 11 is in threaded connection with two sets of bolts 12, and one end of each bolt 12 extends to the outside of the tripod shell 3.

In order to conveniently take out the components in the tripod head 3 for maintenance, the invention needs an operator to screw off the bolt 12 and then pull the first rotating shaft 1 to drive the sliding block 11 to take out along the sliding groove 10, so that the components on the tripod head 2 are communicated and taken out, and the operators can maintain the components, and the operation is simple and convenient.

As an embodiment of the present invention, as shown in fig. 2, a sinking groove 15 is formed on a side surface of the tripod head 3 at a position close to the first bolt 12.

In order to improve the installation aesthetic property of the bolt 12, when the bolt 12 is screwed down, the bolt 12 can enter the sinking groove 15, and the problem that the tail part of the bolt 12 protrudes to cause unattractive appearance is avoided.

As an embodiment of the present invention, as shown in fig. 3, two ends of the interior of the spring 75 are provided with a limiting column 8, one end of one group of the limiting columns 8 is fixedly connected with the arc-shaped sliding piece 74, and the other end of the other group of the limiting columns 8 is fixedly connected with the inner wall of the three-fork movable cavity 72.

When the universal joint deflects, the spring 75 is easily deformed due to the overlarge deformation amount of the spring 75, so that the spring 75 loses deformation, two groups of limiting columns 8 contact first when the spring 75 is compressed, the spring 75 is prevented from continuously deforming, and the problem that the spring 75 loses deformation due to the large deformation amount is solved.

As an embodiment of the present invention, as shown in fig. 3, a soft rubber 9 is fixedly connected to a central position of one outer surface of the limiting column 8.

When the two groups of limiting columns 8 are contacted, abnormal sound can be generated due to impact, when the limiting columns 8 are contacted, the soft rubber 9 arranged in the invention plays a role in buffering movement, and meanwhile, the problem of rigid impact generated when the two groups of limiting columns 8 are contacted is avoided, so that the problem of abnormal sound is solved.

As an embodiment of the present invention, as shown in fig. 2, a cavity 13 is formed in a center position of an outer surface of one end of the pin 5, and a permanent magnet 14 is fixedly connected to an inner bottom of the cavity 13.

In order to improve the smoothness of transmission in the process of universal joint transmission, a layer of lubricating grease is generally coated inside the universal joint to ensure the smoothness of the universal joint during transmission, but scrap iron is generated by friction when the universal joint moves, the iron filings run to all parts along with the grease in the process of external joint transmission, so that the lubricating property of the grease is reduced, the universal joint is easy to clamp during transmission, the cavity 13 formed in the invention reduces the weight of the universal joint and saves materials, in addition, the permanent magnet blocks 14 arranged in the cavity 13 can adsorb the iron filings in the surrounding grease, the grease flows in the process of outward movement, passes through the grease at the opening of the cavity 13, iron filings in the grease can be adsorbed by the permanent magnet blocks 14, so that the content of the iron filings in the grease is reduced, thereby ensuring the lubricating property of the grease and the smoothness of the universal joint and simultaneously avoiding the problem of abnormal sound caused by overlarge friction.

As an embodiment of the present invention, as shown in fig. 6, the permanent magnet blocks 14 are designed to have a fin structure.

In order to improve the content of the permanent magnet 14 adsorbing iron filings, the permanent magnet 14 is designed in a wing-shaped structure, so that the surface area of the permanent magnet 14 is increased, and the large surface area of the permanent magnet 14 can adsorb the iron filings in a larger amount.

As an embodiment of the present invention, as shown in fig. 7, the outer surface of the tripod head 3 is wrapped with a bellows 17.

Because the universal joint is generally in a half-open state, dust in the air can easily enter grease in the universal joint, and the grease is mixed with the dust to reduce the lubricating property of the grease, the corrugated pipe 17 is wrapped on the outer surface of the tripod head shell 3, two ends of the corrugated pipe 17 are fixed on the first rotating shaft 1 and the second rotating shaft 4 by adopting hoops, the corrugated pipe 17 can deform along with the deflection of the universal joint so as not to influence the movement of the universal joint, and in addition, the corrugated pipe 17 can effectively prevent the dust in the air from entering the grease.

As an embodiment of the present invention, as shown in fig. 1, blocking rings 16 are fixedly connected to positions of outer circular surfaces of the first rotating shaft 1 and the second rotating shaft 4, which are close to one end, and the outer circular surfaces of the blocking rings 16 are designed to have a convex arc structure.

When the corrugated pipe 17 is fixed by the hoop, in order to further improve the fixing effect of the hoop, the blocking ring 16 is wrapped in the hoop when the corrugated pipe 17 is fixed, and even if the hoop is slightly loosened to drive the corrugated pipe 17 to move, the movement of the corrugated pipe 17 is also blocked by the blocking ring 16, so that the problem that the corrugated pipe 17 moves is avoided, the universal direction is ensured, the normal deflection is ensured, and in addition, the outer circular surface of the blocking ring 16 adopts a convex arc structure design, so that the problem that the corrugated pipe 17 is cut by edges and corners is avoided.

The using method comprises the following steps: when the universal joint of the invention generates deflection transmission, the deflection of the first rotating shaft 1 can drive the tripod head 3 and internal components and the second rotating shaft 4 to deflect, the universal joint generates deflection transmission in different directions, the rolling ring 6 can extrude the balls 73 in different directions, when the rolling ring 6 extrudes the balls 73, the balls 73 can drive the arc-shaped sliding sheet 74 to move in a fork way of the three-fork movable cavity 72 and extrude the spring 75, in addition, the spring 75 is in a compressed state when being placed in the sleeve box block 71, when the rolling ring 6 extrudes the balls 73 at one end, the balls 73 at the other end can cling to the rolling ring 6 under the push of the spring 75, so that the rolling ring 6 cannot loosen with the contacted components, even if the rolling ring 6 generates a certain amount of deformation due to friction, the compressed spring 75 can also push the arc-shaped sliding sheet 74 to drive the balls 73 to cling to the rolling ring 6, thereby avoiding the problem that the rolling ring 6 loosens with the contacted components, in addition, the contact area between the arc-shaped structural design of the outer circle surface layer of the rolling ring 6 and the balls 73 is small, and a certain amount of friction is reduced, so that the deformation caused by friction is reduced, and the service life of the universal joint is prolonged.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A lightweight tripod constant velocity joint assembly comprising:

the ball pin shell (3), the inside of the ball pin shell (3) is provided with a ball pin frame (2);

the first rotating shaft (1) is fixedly connected to the center of the outer surface of one end of the three-pin frame (2);

the second rotating shaft (4) is rotatably connected to the center of the outer surface of the other end of the three-pin frame (2);

the pin shafts (5) are uniformly distributed on the outer side surface of the three-pin frame (2) in an annular shape;

the rolling ring (6) is hinged to the outer circular surface of one end of the pin shaft (5) in a ball joint mode;

and a tightening mechanism (7);

the method is characterized in that: the jacking mechanism (7) is rotatably connected to the outer surface of the rolling ring (6), the outer surface of one side of the jacking mechanism (7) is fixedly connected with the tripod head shell (3), and the jacking mechanism (7) is used for preventing the universal joint from loosening when in use.

2. A lightweight tripod constant velocity joint assembly according to claim 1, wherein: the jacking mechanism (7) comprises a box sleeving block (71), a three-fork movable cavity (72), a ball (73), an arc sliding sheet (74) and a spring (75);

evenly be fixed with three sets of cover box piece (71) in tripod shell (3), the inside central point of cover box piece (71) puts and has seted up trident activity chamber (72), round pin axle (5) are connected the one end of rolling ring (6) and are extended to the inside central point of trident activity chamber (72) and put, the excircle of rolling ring (6) is personally submitted the annular and evenly is provided with three sets of balls (73), a side of ball (73) is provided with arc gleitbretter (74), the central point of arc gleitbretter (74) convex arc face puts fixedly connected with spring (75), the one end and the trident activity chamber (72) fixed connection of spring (75).

3. A lightweight tripod constant velocity joint assembly according to claim 2, wherein: three group's spout (10) have evenly been seted up to the inner wall of tripod shell (3), the inside of spout (10) is provided with slider (11), one side surface and cover box piece (71) fixed connection of slider (11), one side surface threaded connection of slider (11) has two sets of bolts (12), the one end of bolt (12) extends to the outside of tripod shell (3).

4. A lightweight tripod constant velocity joint assembly according to claim 3, wherein: a sunk groove (15) is formed in the position, close to the first bolt (12), of the side surface of the tripod head shell (3).

5. A lightweight tripod constant velocity joint assembly according to claim 2, wherein: the inside both ends of spring (75) all are provided with limit post (8), and are a set of the one end and the arc gleitbretter (74) fixed connection of limit post (8), another group the inner wall fixed connection in the other end and the trident activity chamber (72) of limit post (8).

6. A lightweight tripod constant velocity joint assembly according to claim 5, wherein: the center of the outer surface of one side of the limiting column (8) is fixedly connected with a soft rubber (9).

7. A lightweight tripod constant velocity joint assembly according to claim 2, wherein: a cavity (13) is formed in the center of the outer surface of one end of the pin shaft (5), and a permanent magnet block (14) is fixedly connected to the inner bottom of the cavity (13).

8. A lightweight tripod constant velocity joint assembly according to claim 7, wherein: the permanent magnet blocks (14) are designed in a wing-shaped structure.

9. A lightweight tripod constant velocity joint assembly according to claim 1, wherein: the outer surface of the three-pin frame (2) is wrapped with a layer of corrugated pipe (17).

10. A lightweight tripod constant velocity joint assembly according to claim 1, wherein: the outer disc of first pivot (1) and second pivot (4) is close to the equal fixedly connected with separation ring (16) of one end position, the outer disc of separation ring (16) adopts the design of convex arc structure.

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