CN113775639B

CN113775639B - Novel split ball pin

Info

Publication number: CN113775639B
Application number: CN202111006885.2A
Authority: CN
Inventors: 王耀明; 曹安; 丁亚康; 陈祥丰; 闵斌云
Original assignee: Lantu Automobile Technology Co Ltd
Current assignee: Lantu Automobile Technology Co Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2023-01-31
Anticipated expiration: 2041-08-30
Also published as: CN113775639A

Abstract

The invention relates to a novel split ball pin, which comprises: the ball seat is internally provided with a cavity, and a ball bowl is arranged in the cavity; the ball head pin is provided with a ball body, and the ball body is pressed in the ball bowl; and the adjusting piece is arranged at the bottom of the ball seat and is positioned on one side of the ball bowl, which is far away from the ball pin, and the adjusting piece can move in the cavity and adjust the size of a gap between the ball bowl and the ball pin. According to the invention, the adjusting piece is arranged in the ball seat, so that the size of a gap between the ball pin and the ball bowl can be adjusted, the gap generated in the use process is eliminated, the stability of starting torque and working torque is kept, abnormal sound and loose failure of the ball pin are prevented, and the ball pin is prevented from falling off; through adopting split type steel to go up the ball seat, reduced the volume of ball seat, increased the opening diameter of ball seat, can effectively improve the pivot angle of bulb round pin under the requirement of guaranteeing ball round pin pull-out force, pressure-out force.

Description

Novel split ball pin

Technical Field

The invention relates to the field of automobile spare and accessory parts, in particular to a novel split type ball pin.

Background

The ball stud is also called ball hinge, ball joint, it is widely used in the independent suspension system, the control arm or thrust lever is usually connected with other parts through the ball stud located in the end, its main function is to realize the up-and-down run and steering movement of the wheel, the ball stud is the key part to guarantee the stability of the automobile operation, ride comfort, safety and make the automobile run correctly and accurately.

In the related technology, the ball pin mainly comprises a ball bowl, a ball pin, a ball seat, a dust cover and the like, the ball pin and the ball bowl are matched and cannot be loose or tight, and after lubricating grease is added, the ball pin is rotated by hands to have slight resistance. Because the stress condition is more complicated, the traditional ball pin is easy to have the failure phenomena of looseness, abnormal sound, even separation and the like in the use process, and the use safety of the vehicle is influenced.

Therefore, there is a need for a new split ball pin to overcome the above problems.

Disclosure of Invention

The embodiment of the invention provides a novel split ball pin, and aims to solve the problem that the use safety of a vehicle is affected by the failure phenomena of looseness, abnormal sound, even separation and the like easily generated in the use process of the traditional ball pin in the related technology.

In a first aspect, a novel split ball pin is provided, which includes: the ball seat is internally provided with a cavity, and a ball bowl is arranged in the cavity; the ball head pin is provided with a ball body, and the ball body is pressed in the ball bowl; and the adjusting piece is arranged at the bottom of the ball seat and is positioned on one side of the ball bowl, which is far away from the ball pin, and the adjusting piece can move in the cavity and adjust the size of a gap between the ball bowl and the ball pin.

In some embodiments, the ball seat comprises: the inner side of the lower ball seat forms the cavity; the ball mounting structure comprises an upper ball seat, a lower ball seat, a ball bowl, a limiting ring, a ball pin and a ball head pin, wherein the upper ball seat is mounted on the inner side of the lower ball seat and is positioned between the lower ball seat and the ball bowl, the inner side of the upper ball seat is provided with the limiting ring, the limiting ring is partially positioned above the ball bowl, and the ratio of the inner diameter of the limiting ring to the outer diameter of the ball pin is 0.93-0.95.

In some embodiments, a boss is arranged on the inner side of the lower ball seat, a gap is arranged above the boss, and the upper ball seat can move up and down in the gap along the inner wall of the lower ball seat and drives the ball pin to move up and down.

In some embodiments, the novel split ball pin further comprises a dust cover, one end of the dust cover is sleeved on the ball pin, and the other end of the dust cover is sleeved on the outer side of the upper ball seat.

In some embodiments, the dust cover is provided with a clamp, the upper end surface of the upper ball seat is higher than the upper end surface of the lower ball seat, and the clamp is located between the upper ball seat and the lower ball seat.

In some embodiments, the adjusting member has an external thread on an outer side thereof and an internal thread on an inner side thereof, and the adjusting member is threadedly mounted with the lower ball seat.

In some embodiments, the upper part of the ball bowl is provided with a cylindrical bowl body, and the inner side of the upper ball seat is in interference fit with the outer side of the bowl body.

In some embodiments, the lower part of the ball bowl is provided with an arc-shaped bowl bottom, and one side of the adjusting piece close to the bowl bottom is provided with a groove, and the shape of the groove is matched with that of the bowl bottom.

In some embodiments, the upper ball seat is made of steel, and the outer side of the upper ball seat is in interference fit with the inner side of the lower ball seat.

In some embodiments, the upper ball seat is located above the adjustment member.

The technical scheme provided by the invention has the beneficial effects that:

1. the embodiment of the invention provides a novel split ball pin, and the size of a gap between a ball head pin and a ball bowl can be adjusted by installing an adjusting piece in a ball seat, so that the gap generated in the using process is eliminated, the stability of starting torque and working torque is kept, abnormal sound and loose failure of the ball pin are prevented, and the ball pin is prevented from falling off.

2. Through adopting split type steel to go up the ball seat, reduced the volume of ball seat, increased the opening diameter of ball seat, can effectively improve the pivot angle of bulb round pin under the requirement of guaranteeing ball round pin pull-out force, pressure-out force.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a sectional view of a novel split ball pin provided in an embodiment of the present invention;

fig. 2 is a schematic diagram of a part of an enlarged structure of a in fig. 1.

The reference numbers in the figures:

1. a ball stud; 2. a ball bowl; 21. a bowl body; 22. a bowl bottom; 3. a ball seat; 31. a ball seat is arranged; 32. an upper ball seat; 4. an adjustment member; 5. a limiting ring; 6. a void; 7. a dust cover; 8. and (5) clamping a hoop.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.

The embodiment of the invention provides a novel split ball pin, which can solve the problem that the safety of a vehicle is affected by the failure phenomena of looseness, abnormal sound, even separation and the like easily generated in the use process of the traditional ball pin in the related technology.

Referring to fig. 1, a novel split ball pin provided for an embodiment of the present invention may include: the ball seat 3 can be connected with the tie rod, the inner side of the ball seat 3 is provided with a cavity, the shape of the cavity can be approximately cylindrical, the cavity penetrates through the ball seat 3, the upper end and the lower end of the cavity are open, so that the ball pin 1 and the adjusting piece 4 can be conveniently installed, a ball bowl 2 can be arranged in the cavity, the bowl body of the ball bowl 2 is cylindrical, the bowl body is installed in the cavity, the outer side of the bowl body is in contact with the inner wall of the ball seat 3, the bowl bottom of the ball bowl 2 is arc-shaped, and the bowl bottom is suspended in the cavity; the ball head pin 1 is provided with a ball body, the ball body can be installed in the ball bowl 2 in a pressing mode, one end of the ball head pin 1 is provided with the ball body and used for being installed in the ball seat 3, an arc-shaped groove matched with the ball body is formed in the ball bowl 2, the ball body is connected with a pin body used for being connected with a steering rocker arm, and the pin body extends out of the ball seat 3; and install in regulating part 4 of ball seat 3 bottom, it is located ball bowl 2 keeps away from one side of bulb round pin 1, regulating part 4 can remove in the cavity, and adjust ball bowl 2 with the clearance size between the bulb round pin 1, in this embodiment, regulating part 4 can be roughly cylindrical, and the diameter slightly is less than the internal diameter of cavity, and regulating part 4 installs in the cavity, and its outside contacts with the inner wall of ball seat 3, and regulating part 4 can pass in and out in the cavity, when the bulb round pin 1 produces loosely, moves regulating part 4 up, can eliminate the clearance between ball bowl 2 and the bulb round pin 1. The tightness adjusting method of the ball stud 1 comprises the following steps: the adjusting part 4 is screwed by a special tool to enable the adjusting part 4 to tightly press the ball bowl 2, and at the moment, the ball body of the ball head pin 1 can rotate freely with slight resistance but is not too tight and has no clamping phenomenon, namely the adjustment is finished, the gap generated by abrasion in the using process is effectively compensated, and abnormal sound and looseness are eliminated.

Referring to fig. 1 and 2, in some embodiments, the ball seat 3 may include: the lower ball seat 31, the inner side of the lower ball seat 31 forms the cavity, the lower ball seat 31 is used for connecting with the tie rod, and the material of the lower ball seat 31 can be steel; an upper ball seat 32 which can be installed inside the lower ball seat 31, wherein the outer diameter of the upper ball seat 32 is smaller than the inner diameter of the lower ball seat 31, the upper ball seat 32 is cylindrical and has a central hole inside, openings are formed at both ends, the upper ball seat 32 can be located between the lower ball seat 31 and the ball bowl 2, the thickness of the upper ball seat 32 is thinner, the outer wall of the ball bowl 2 is in interference fit with the inner wall of the upper ball seat 32, the upper ball seat 32 is in contact with the bowl body of the ball bowl 2, the outer wall of the upper ball seat 32 is in interference fit with the inner wall of the lower ball seat 31, the upper ball seat 32 is installed on the upper portion of the lower ball seat 31, the upper end of the upper ball seat protrudes outside the lower ball seat 31 so as to install a hoop 8 and a limit ring 5, the inner diameter of the upper ball seat 32 can be installed on the inner side of the upper ball bowl 2, in this embodiment, the upper end surface of the upper ball seat 32 is higher than the upper end surface of the ball bowl 2, a part of the upper ball seat 32 is located above the ball head 2, the outer diameter of the limit ring 5 is slightly larger than the inner side of the upper ball seat 32, the upper end of the upper ball seat 32 is installed on the upper ball seat 2, and the upper end of the ball seat 2, the upper ball seat is used for preventing the ball seat 2 from moving out of the ball bowl 2, and preventing the ball seat 2 from moving out of the ball bowl 2; the ratio of the inner diameter of the limiting ring 5 to the outer diameter of the ball stud 1 may be 0.93-0.95, the limiting ring 5 is located outside the upper end of the ball stud 1, and when the ball stud 1 swings, the outer portion of the limiting ring abuts against the inner side of the limiting ring 5, that is, the inner diameter of the limiting ring 5 limits the swing angle of the ball stud 1, specifically, the inner diameter of the limiting ring 5 is 33mm, the outer diameter of the ball stud 1 is 35mm, the ratio of the inner diameter of the limiting ring 5 to the outer diameter of the ball stud 1 is about 0.94, in the related art, the inner diameter of the limit ring 5 is 32mm, the outer diameter of the ball stud 1 is 35mm, and the ratio of the inner diameter of the limit ring 5 to the outer diameter of the ball stud 1 is about 0.91, that is, the inner diameter of the limit ring 5 adopted in the application is greater than the inner diameter of the limit ring in the related art, the factor determining the inner diameter of the limit ring 5 is the inner diameter of the opening of the upper ball seat 32, and the main parts of the ball stud in the related art include a ball stud, a dust cover, a ball seat, a ball bowl, a limit ring and the like, the ball seat is the integral type structure of aluminium matter, ball seat 3 in this application adopts split type structure, lower ball seat 31 adopts the aluminium matter structure, go up the ball seat 32 and adopt the steel structure, because the density of steel is more than aluminium, and the intensity of steel is also more than aluminium, consequently under the condition of guaranteeing the requirement of ball round pin pull-out power, pressure-out power, the volume of the last ball seat 32 of steel will be less than the integral type ball seat of aluminium matter, that is to say, under the condition of guaranteeing same pull-out power and pressure-out power, the opening internal diameter of the last ball seat 32 of the steel of this application will be greater than the opening internal diameter of the integral type ball seat of aluminium, under general condition, the ratio of the opening internal diameter of the last ball seat 32 of split type ball seat 3 of this application and the opening internal diameter of the integral type ball seat in the correlation technique is 1.1-1.2, and the opening internal diameter has just decided the internal diameter of spacing ring 5 who uses, the internal diameter of the limiting ring 5 determines the swing angle of the ball pin 1, so that the split ball seat 3 adopted in the application can effectively improve the swing angle of the ball pin 1 under the requirements of guaranteeing the pull-out force and the press-out force of the ball pin.

Referring to fig. 1, in some embodiments, the inner side of the lower ball seat 31 may be provided with a boss, the inner side of the lower ball seat 31 is divided into two parts, the opening diameter of the upper part is larger than that of the lower part, that is, the part below the boss protrudes towards the inner side of the lower ball seat 31, the upper ball seat 32 is installed on the part above the boss, and the inner side of the upper ball seat 32 is in contact with the bowl body of the ball bowl 2; the upper part of the boss is provided with a gap 6, so that the lower part of the inner side of the lower ball seat 31 integrally protrudes inwards, a gap 6 is formed above the boss, the gap 6 is formed by the inner wall of the lower ball seat 31 and the outer wall of the ball bowl 2, the bottom of the gap 6 is formed by the boss, the top of the gap 6 forms an annular opening, the opening of the gap 6 is positioned in the opening of the lower ball seat 31 and is a part of the opening of the lower ball seat 31, the upper ball seat 32 is installed by the opening of the gap 6 and then is partially pressed into the gap 6, the gap 6 vertically extends downwards from the surface of the upper ball seat 32, the upper ball seat 32 can move upwards and downwards in the gap 6 along the inner wall of the lower ball seat 31 and drives the ball stud 1 to move upwards and downwards, and the upper ball seat 32 is pressed outside the ball bowl 2, when going up ball seat 32 and removing in space 6, can drive ball bowl 2 and remove thereupon, thereby adjust the height of the centre of sphere of bulb round pin 1, that is to say, when ball seat 32 was gone up in impressing, through the different amount of impressing of control ball seat 32, thereby adjust the centre of sphere height of bulb round pin 1, different centre of sphere height can make whole ball round pin reach different performance effects, therefore, in process of production, if the result of use of bulb round pin 1 does not reach the requirement, the split type ball round pin of this application need not come the timing through the mode of traditional change mould, only need be through the further regulation to the amount of impressing of last ball seat 32, just can realize the quick timing to the ball round pin, in order to reach ideal user state, the furthest that has realized the mould is general, the suitability is higher, and the production cost is saved.

Referring to fig. 1, in some embodiments, the novel split ball pin may further include a dust cover 7, one end of which is sleeved on the ball stud 1, and the other end of which is sleeved on the outer side of the upper ball stud 32, in this embodiment, the upper end of the dust cover 7 is sleeved on the outer side of the stud body of the ball stud 1 to form a seal with the ball stud 1, and the lower end of the dust cover 7 is sleeved on the outer side of the upper ball stud 32 to form a seal with the ball seat 3, so as to cover the whole internal parts of the ball seat 3, wherein the upper end of the upper ball stud 32 protrudes out of the lower ball seat 31, the lower end of the dust cover 7 just covers the protruding portion of the upper ball stud 32, and the bottom of the dust cover 7 is in contact with the lower ball seat 31, that is, a part of the upper ball stud 32 is located inside the dust cover 7, and the other part of the lower ball stud 31 are located inside the dust cover 31, so as to achieve a good sealing effect, and prevent dust from entering into the use, and the fitting precision of the dust cover 7 and related parts has a great influence on the sealing performance and the service life. In addition, the sealing performance of the dust cover 7 greatly affects the abrasion and fatigue life of the ball stud 1, and the material thereof is mostly high-temperature resistant, oil resistant and aging resistant polyurethane or chloroprene rubber. Meanwhile, the deformation condition of the ball stud during movement should be considered in design so as to prevent dust from entering the ball stud 1 from the matching surface after deformation.

Referring to fig. 1 and 2, in some embodiments, a clamp 8 may be clamped outside the dust cover 7, the clamp 8 is used for clamping the dust cover 7 to prevent the dust cover 7 from falling off, an upper end surface of the upper ball seat 32 is higher than an upper end surface of the lower ball seat 31, the clamp 8 is located between the upper ball seat 32 and the lower ball seat 31, an outwardly protruding ring is arranged outside an upper end of the upper ball seat 32, a groove is formed between the ring and the lower ball seat 31, the clamp 8 is clamped in the groove to prevent the clamp 8 from falling off under the stop of the ring, the clamp 8 is located outside the upper ball seat 32, an inner diameter of the clamp 8 is larger than an outer diameter of the upper ball seat 32, the clamp 8 is matched with the upper ball seat 32 to clamp the dust cover 7 between an inner ring of the clamp 8 and an outer wall of the upper ball seat 32, and the clamp 8 also clamps a lower end surface of the dust cover 7 on the upper end surface of the lower ball seat 31 to enable the dust cover to be in close contact, so that the dust cover and the dust cover are better in sealing performance.

Referring to fig. 1, preferably, the outer side of the adjusting member 4 may have an external thread, the inner side of the lower ball seat 31 may have an internal thread, and the adjusting member 4 and the lower ball seat 31 are installed by thread fit, in this embodiment, the outer side of the adjusting member 4 is substantially cylindrical, the outer diameter of the adjusting member 4 is smaller than the inner diameter of the lower ball seat 31, the height of the adjusting member 4 is smaller than the height of the lower ball seat 31, so that the adjusting member 4 can completely enter the cavity of the lower ball seat 31, the bottom of the adjusting member 4 has a plug hole matched with a tool, the adjusting member 4 can be rotated by some tool to adjust its position in the lower ball seat 31, the inner wall of the protruding portion in the lower ball seat 31 contacts with the outer wall of the adjusting member 4, so that the adjusting member 4 can be located just below the ball bowl 2, and the gap between the ball bowl 2 and the ball stud 1 can be adjusted by rotating the adjusting member 4 to move up and down along the thread; in other embodiments, the adjusting element 4 may be snapped into the lower ball seat 31, may be installed in the lower ball seat 31 in a form of a spring, etc., or may be installed in the lower ball seat 31 in an adsorption manner, as long as the adjusting element 4 can move along the inner wall of the lower ball seat 31.

Referring to fig. 1, in some embodiments, the upper portion of the ball bowl 2 has a cylindrical bowl body 21, the inner side of the upper ball seat 32 can be in interference fit with the outer side of the bowl body 21, in this embodiment, the inner side of the upper ball seat 32 is cylindrical and can be just matched with the bowl body 21, the inner side of the upper ball seat 32 and the outer side of the bowl body 21 are in interference fit so that the upper ball seat 32 and the ball bowl 2 are more tightly matched, the upper ball seat 32 is prevented from being connected with the bowl body 21 to fall off or loosen to affect use, the upper ball seat 32 is located on the upper portion of the outer side of the bowl body 21, the upper ball seat 32 and the limit ring 5 are matched to press-mount the ball bowl 2 and the ball stud 1 in the lower ball seat 31, so that the ball bowl 2 is in a stable state and cannot shake in the ball seat 3, and a large torque is avoided.

Referring to fig. 1, in some embodiments, the lower portion of the ball bowl 2 has an arc-shaped bowl bottom 22, one side of the adjusting part 4 close to the bowl bottom 22 may have a groove, and the shape of the groove matches with the shape of the bowl bottom 22, in this embodiment, the bottom of the adjusting part 4 is closed, the top of the adjusting part is provided with an opening, which is similar to the shape of a bottle cap, one side of the adjusting part 4 is provided with an arc-shaped groove, which can be just matched with the arc of the bowl bottom 22, after the adjusting part 4 is installed in the lower ball seat 31, the bowl bottom 22 can be just accommodated in the groove of the adjusting part 4, and the bottom of the ball bowl 2 is attached to the inner wall of the groove of the adjusting part 4, so that there is no gap between the ball bowl 2 and the adjusting part 4, thereby preventing the ball bowl 2 from shaking, and making the ball stud 1 more stable during operation. In addition, the adjusting part 4 can be made of hard materials such as aluminum or steel, or can be made of elastic soft materials, the bottom of the ball bowl 2 only needs to be wrapped to prevent the ball bowl 2 from shaking, the ball bowl 2 can be pushed to move, a spring can be further installed in the adjusting part 4, and a gap between the ball bowl 2 and the ball stud 1 is eliminated through elasticity of the spring.

Referring to fig. 1, in some embodiments, the upper ball seat 32 may have a steel structure, the outer side of the upper ball seat 32 and the inner side of the lower ball seat 31 may be in interference fit, in this embodiment, the strength and density of steel are greater than those of aluminum, the upper ball seat 32 may have steel instead of aluminum, the size may be reduced, the inner diameter of an opening may be increased, and further, a tilt angle of the ball pin 1 may be increased, the outer side of the upper ball seat 32 may be cylindrical, and may be just matched with the inner side of the lower ball seat 31, the outer side of the upper ball seat 32 and the inner side of the lower ball seat 31 may be in interference fit such that the upper ball seat 32 and the lower ball seat 31 are more tightly fitted, thereby preventing the connection of the upper ball seat 32 and the lower ball seat 31 from dropping or being loosened, and affecting the use, and the two sides of the upper ball seat 32 are respectively in interference fit with the lower ball seat 31 and the ball bowl 2, so that the upper ball seat 32 is more firmly installed in the lower ball seat 31, and the whole ball pin is more stable, and the problem of insufficient stability of the ball seat 3 caused by the split ball seat is avoided.

Referring to fig. 1, in some embodiments, the upper ball seat 32 may be located above the adjusting member 4, in this embodiment, the upper ball seat 32 is located outside the bowl body 21, the adjusting member 4 is located outside the bowl bottom 22, the upper ball seat 32 generates a downward pressing force on the bowl body 21, the adjusting member 4 generates an upward lifting force on the bowl bottom 22, the upper ball seat 32 above is matched with the adjusting member 4 below, the ball bowl 2 is stably pressed in the ball seat 3, the height of the center of the ball stud 1 can be adjusted through the upper ball seat 32, and a gap between the ball bowl 2 and the ball stud 1 can be eliminated through the adjusting member 4, which are not interfered with each other, and the upper ball seat 32 is symmetrical in stress and is tightly matched.

Referring to fig. 1, when mounting, the lower ball seat 31 is taken out, a cavity for mounting the ball bowl 2 and the ball stud 1 is formed in the lower ball seat 31, the ball bowl 2 is mounted in the cavity, the ball bowl 2 is not completely pressed into the lower ball seat 31, a part of the upper end of the ball bowl 2 extends out of the lower ball seat 31, then the ball body of the ball stud 1 is pressed into the ball bowl 2, the outer diameter of the ball body is larger than the inner diameter of the upper opening of the ball bowl 2, so that the ball body can be wrapped in the ball bowl 2 to avoid falling off, the inner wall of the ball bowl 2 is smooth and smooth, the ball stud 1 can freely rotate in the ball bowl 2, then the upper ball seat 32 is inserted between the lower ball seat 31 and the ball bowl 2, the upper ball seat 32, the ball bowl 2 and the lower ball seat 31 form tight fit, meanwhile, the upper ball seat 32 also forms compression on the ball bowl 2, the inner side of the upper ball seat 32 is provided with the limit ring 5, and the limit ring 5 is clamped on the inner wall of the upper ball seat 32, meanwhile, part of the adjusting part is positioned above the ball bowl 2 to prevent the ball bowl 2 and the ball stud 1 from being separated, then the adjusting part 4 is arranged in the lower ball seat 31 from the bottom opening, a tool is inserted in an insertion hole at the bottom of the adjusting part 4, the tool is rotated to enable the adjusting part 4 to rotate and ascend along a thread, the ball bowl 2 is better matched with the ball stud 1, the ball bowl 2 is matched with the ball stud 1 neither loosely nor tightly, after enough lubricating grease is added, the ball stud 1 is slightly resistant to rotation by hand, then the dust cover 7 is penetrated through the pin body of the ball stud 1, the lower end of the dust cover 7 is sleeved outside the upper ball seat 32, a clamp 8 is sleeved outside the dust cover 7, the lower end of the dust cover 7 is clamped by matching the upper ball seat 32, the upper end of the dust cover 7 is fixed outside the pin body, and finally the whole ball stud is arranged in an independent suspension system, the control arm or the thrust rod is connected with other parts through a ball stud 1 so as to realize the up-and-down jumping and steering movement of the wheel.

The principle of the novel split ball pin provided by the embodiment of the invention is as follows:

the novel ball pin mainly comprises a ball pin 1, a dust cover 7, an upper ball seat 32, a ball bowl 2, a limiting ring 5, a hoop 8, a lower ball seat 31, an adjusting piece 4 and the like which are matched and adjusted, wherein the ball pin 1 is pressed into the ball bowl 2 through a press fitting process, the ball bowl 2 is in interference fit with the upper ball seat 32, the limiting ring 5 is pressed into the upper part of the upper ball seat 32 to prevent the ball pin 1 from being separated, a ball swing angle is limited, the upper ball seat 32 is connected with the lower ball seat 31 through interference fit, and the bottom of the lower ball seat 31 is in threaded connection with the adjusting piece 4; with the requirement of higher and higher light weight, aluminum (forged aluminum and cast aluminum) structural parts (such as control arms) are used more and more widely, in order to ensure the pull-out force and the press-out force of the ball pin, the aluminum ball seat limits the swing angle of the ball pin, and by adopting the split ball pin, namely the lower ball seat 31 adopts an aluminum structure consistent with the swing arm body, and the upper ball seat 32 adopts a steel structure, the swing angle of the ball pin can be effectively improved under the requirement of ensuring the pull-out force and the press-out force of the ball pin; the split ball pin can effectively compensate the gap generated by abrasion in the using process through the adjusting piece 4 in threaded connection with the lower ball seat 31 at the bottom, avoids the generation of abnormal sound and looseness phenomena, and adjusts the starting torque and the working torque to keep the split ball pin in a reasonable working range; in addition, the split ball pin can quickly adjust the height of the ball center of the ball pin 1 in the Z direction within a certain range by adjusting the pressing amount of the upper ball seat 32 in the using process, the quick verification of a scheme is realized in the adjusting process, the maximum universality of a mold is realized in the production process, and the development and verification cost, risk and period are reduced.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may 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 by those skilled in the art according to specific situations.

It is noted that, in the present invention, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above description is merely illustrative of particular embodiments of the invention that enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel split ball pin, its characterized in that, it includes:

the ball seat (3) is internally provided with a cavity, and a ball bowl (2) is arranged in the cavity;

a ball stud (1) having a ball body which is press-fitted into the ball bowl (2);

the adjusting piece (4) is arranged at the bottom of the ball seat (3) and is positioned on one side, away from the ball pin (1), of the ball bowl (2), and the adjusting piece (4) can move in the cavity and adjust the size of a gap between the ball bowl (2) and the ball pin (1);

the ball seat (3) comprises a lower ball seat (31) and an upper ball seat (32), the upper ball seat (32) is arranged on the inner side of the lower ball seat (31), and the upper ball seat (32) can move along the inner wall of the lower ball seat (31) and drives the ball head pin (1) to move so as to adjust the height of the center of the ball body relative to the lower ball seat (31) and maintain the center of the ball at the adjusted height.

2. The novel split ball pin of claim 1, characterized in that:

the cavity is formed on the inner side of the lower ball seat (31), the upper ball seat (32) is located between the lower ball seat (31) and the ball bowl (2), a limiting ring (5) is installed on the inner side of the upper ball seat (32), the limiting ring (5) is partially located above the ball bowl (2), and the ratio of the inner diameter of the limiting ring (5) to the outer diameter of the ball pin (1) is 0.93-0.95.

3. The novel split ball pin of claim 2, wherein:

the novel split ball pin further comprises a dust cover (7), one end of the dust cover is sleeved on the ball pin (1), and the other end of the dust cover is sleeved on the outer side of the upper ball seat (32).

4. The novel split ball pin of claim 3, wherein:

the outside card of dust cover (7) is equipped with clamp (8), the up end of going up ball seat (32) is higher than the up end of ball seat (31) down, clamp (8) are located go up between ball seat (32) and the ball seat (31) down.

5. The novel split ball pin of claim 2, wherein:

the outer side of the adjusting piece (4) is provided with an external thread, the inner side of the lower ball seat (31) is provided with an internal thread, and the adjusting piece (4) and the lower ball seat (31) are installed in a threaded fit mode.

6. The novel split ball pin of claim 2, wherein:

the upper portion of the ball bowl (2) is provided with a cylindrical bowl body (21), and the inner side of the upper ball seat (32) is in interference fit with the outer side of the bowl body (21).

7. The novel split ball pin of claim 2, wherein:

the lower part of ball bowl (2) has curved bowl end (22), regulating part (4) are close to one side at the bottom of the bowl (22) has the recess, the shape of recess with the shape phase-match at the bottom of the bowl (22).

8. The novel split ball pin of claim 2, wherein:

the upper ball seat (32) is of a steel structure, and the outer side of the upper ball seat (32) is in interference fit with the inner side of the lower ball seat (31).

9. The novel split ball pin of claim 2, wherein:

the upper ball seat (32) is located above the adjusting piece (4).