CN210919787U

CN210919787U - Ball head assembly

Info

Publication number: CN210919787U
Application number: CN201921085476.4U
Authority: CN
Inventors: 刘根燕
Original assignee: Wenling Delizhong Machinery Manufacturing Co ltd
Current assignee: Wenling Delizhong Machinery Manufacturing Co ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-07-03
Anticipated expiration: 2029-07-11

Abstract

The utility model discloses a bulb assembly, include: the ball head of the mandrel is arranged in the through hole, the shaft rod of the mandrel penetrates through the small inner diameter end of the through hole when the ball head of the mandrel is arranged in the shell, and the end part of the large inner diameter end is provided with a sealing cover. When the ball head is installed, the end of the shaft rod is aligned with the through hole and inserted into the through hole from the large inner diameter end of the through hole until the ball head enters the through hole, and then the end of the large inner diameter end is covered by the sealing cover. Because the casing formula structure as an organic whole, the bulb of installing in the through-hole can receive great along the pulling force of big internal diameter end to little internal diameter end direction, and the effectual bulb that blocks of little internal diameter end of casing has prevented that the bulb from drawing out in the too big and by the casing of atress, has promoted the intensity of bulb assembly.

Description

Ball head assembly

Technical Field

The utility model relates to a car hangs technical field, more specifically says, relates to a bulb assembly.

Background

The suspension ball head assembly is one of the most important parts in an automobile suspension system, mainly bears the load transfer and steering action in the driving process of an automobile, and plays a key role in the operation stability, driving smoothness and safety of the automobile.

The existing ball head assembly is that a ball head on a mandrel is arranged towards an opening of a shell, then an upper cover is covered on the opening, and the mandrel is easily pulled out of the shell because the rod part of the mandrel can bear large pulling force.

In summary, how to increase the strength of the ball head assembly is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a ball head assembly, which can bear a large pulling force.

In order to achieve the above object, the present invention provides the following technical solutions:

a ball head assembly, comprising: the ball head of the mandrel is arranged in the through hole, the rod part of the mandrel penetrates through the small inner diameter end of the through hole when the ball head of the mandrel is arranged in the shell, and the end part of the large inner diameter end is provided with a sealing cover.

Preferably, a shaft sleeve for buffering is sleeved on the periphery of the joint of the shaft rod and the ball head.

Preferably, an annular groove is formed in the periphery of the shell, and a shaft retainer ring is mounted in the annular groove.

Preferably, a dust cover is arranged on the periphery of the shell, a large-diameter end of the dust cover is sleeved on the periphery of the shell, and a small-diameter end of the dust cover is sleeved on the periphery of the shaft rod.

Preferably, a first collar is bound to an outer circumference of the small-diameter end of the dust cap, and a second collar is bound to an outer circumference of the large-diameter end of the dust cap.

Preferably, an oil hole is formed in the sealing cover, and an oil nipple is inserted into the oil hole.

Preferably, a threaded section is arranged at the end of the shaft rod, a pin hole is formed in the threaded section, a split pin is arranged in the pin hole, and a nut is arranged on the threaded section towards the ball head along the pin hole.

Preferably, an elastic part is arranged on the inner side surface of the sealing cover, a ball seat is arranged between the elastic part and the ball head, and the inner periphery of the ball seat is attached to the outer periphery of the ball head.

Preferably, the elastic member is a spring.

Preferably, the inner circumference of the small diameter end fits against the outer circumference of the ball head.

The utility model provides a pair of ball head assembly, include: the casing with the through-hole, the through-hole includes big internal diameter end and the internal diameter is less than the little internal diameter end of big internal diameter end, is equipped with the bulb of dabber in the through-hole, and the internal diameter of big internal diameter end is greater than the external diameter of bulb, and the internal diameter of little internal diameter end is less than the external diameter of bulb and is greater than the external diameter of the axostylus axostyle of dabber, and when the bulb of dabber was packed into the casing, the little internal diameter end of through-hole was passed to the pole portion of dabber, and.

The dabber includes bulb and the axostylus axostyle of being connected with the bulb, and the external diameter of bulb is greater than the external diameter of axostylus axostyle, because the internal diameter of the little internal diameter end in the through-hole of casing is less than the external diameter of bulb and is greater than the external diameter of the axostylus axostyle of dabber, and because the through-hole is used for installing the bulb, so when the installation should aim at the through-hole with the tip of axostylus axostyle and insert the through-hole by the big internal diameter end of. Because the casing formula structure as an organic whole, the bulb of installing in the through-hole can receive great along the pulling force of big internal diameter end to little internal diameter end direction, and the effectual bulb that blocks of little internal diameter end of casing to prevented that the bulb from drawing out in the too big and by the casing of atress, and then promoted the intensity of bulb assembly.

Drawings

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

Fig. 1 is a cross-sectional view of a ball head assembly provided by the present invention;

fig. 2 is a schematic view of a cotter pin provided by the present invention;

fig. 3 is a schematic view of a shaft retainer ring provided by the present invention;

fig. 4 is a schematic view of the oil nozzle provided by the present invention.

In FIGS. 1-4:

the bearing comprises a nut 1, a mandrel 2, a first binding ring 3, a dust cover 4, a shaft sleeve 5, a second binding ring 6, a shell 7, an annular groove 8, a sealing cover 9, a pin hole 10, a split pin 11, a spring 12, an oil hole 13, a shaft retainer 14 and an oil nozzle 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a bulb assembly, this bulb assembly can bear great pulling force.

Referring to fig. 1 to 4, fig. 1 is a cross-sectional view of a ball head assembly provided in the present invention; fig. 2 is a schematic view of a cotter pin provided by the present invention; fig. 3 is a schematic view of a shaft retainer ring provided by the present invention; fig. 4 is a schematic view of the oil nozzle provided by the present invention.

A ball head assembly, comprising: the casing 7 with the through-hole, the through-hole includes that big internal diameter end and internal diameter are less than the little internal diameter end of big internal diameter end, is equipped with the bulb of dabber 2 in the through-hole, and the internal diameter of big internal diameter end is greater than the external diameter of bulb, and the internal diameter of little internal diameter end is less than the external diameter of bulb and is greater than the external diameter of the axostylus axostyle of dabber 2, and when the bulb of dabber 2 was packed into in the casing 7, the little internal diameter end of through-hole was passed to the pole portion of dabber 2, and the.

It should be noted that, the housing 7 is a barrel-shaped structure, the shaft rod of the mandrel 2 is used for connecting other components, and is usually connected to a suspension component, so that the shaft rod is usually pulled in the direction from the ball head to the shaft rod, and is also subjected to a force crossing the length direction of the shaft rod, so that the shaft rod swings along the ball head, the shaft rod touches the housing 7 in a swinging range, since the housing 7 and the shaft rod are both metal pieces, the collision between the housing 7 and the shaft rod is a hard collision, in order to reduce the damage caused by the impact, the contact point between the housing 7 and the shaft rod can be changed into a contact surface, that is, an annular inclined surface which is tapered from the small inner diameter end to the large inner diameter end is.

The cover 9 is generally formed in a plate shape, and may be formed in any shape as needed, and in consideration of the stability of the connection between the cover and the housing 7, in the connection method of the cover, an annular step surface facing the end of the large inner diameter end may be provided on the inner wall of the housing 7, the inner plate surface of the cover 9 may be placed on the annular step surface, the outer circumferential surface of the cover 9 may be attached to the inner wall of the housing 7 facing the end of the large inner diameter end along the annular step surface, and then the end of the large inner diameter end may be inwardly gathered until being attached to the outer plate surface of the cover 9.

The mandrel 2 comprises a ball head and a shaft rod connected with the ball head, the outer diameter of the ball head is larger than that of the shaft rod, the inner diameter of a small inner diameter end in a through hole of the shell 7 is smaller than that of the ball head and larger than that of the shaft rod of the mandrel 2, and the through hole is used for installing the ball head, so that the end part of the shaft rod is aligned to the through hole and inserted into the through hole through the large inner diameter end of the through hole when the ball head is installed until the ball head enters the through hole, and then the sealing cover 9 covers the end part of the large inner. Because casing 7 formula structure as an organic whole, the bulb of installing in the through-hole can receive great along the pulling force of big internal diameter end to little internal diameter end direction, and the effectual bulb that blocks of little internal diameter end of casing 7 to prevented that the bulb from drawing out in the too big and by casing 7 of the atress, and then promoted the intensity of bulb assembly.

On the basis of the above embodiment, although the surface of the casing 7 contacting the shaft rod can be set to be a plane, the casing 7 and the shaft rod are both metal pieces, and the collision between the casing 7 and the shaft rod can cause great damage to the casing and the shaft rod, so that the shaft sleeve 5 for buffering is sleeved on the periphery of the connecting part of the shaft rod and the ball head.

It should be noted that the shaft sleeve 5 may be made of a non-metallic and elastic material such as rubber or silica gel, and a radial annular protrusion is disposed at one end of the shaft sleeve 5, so that the shaft sleeve 5 can be conveniently mounted at a contact position between the shaft rod and the housing 7 along an end portion of the shaft rod. The length and the thickness of axle sleeve 5 can set up as required, because axle sleeve 5 is the elastic component, so can be with the external diameter that slightly is less than the axostylus axostyle that the internal diameter of axle sleeve 5 set up to make axle sleeve 5 can laminate in the outside of axostylus axostyle under the effect of the elastic force of self, and can not slide.

In the above embodiment, the housing 7 is provided with the annular groove 8 on the outer periphery thereof, and the shaft retainer 14 is mounted in the annular groove 8.

It should be noted that the shaft retainer 14 is also called a shaft circlip, and can prevent the housing 7 from moving axially when the housing 7 is connected to another component. The shaft retainer 14 is in a shape of a major arc, and the two end portions of the shaft retainer 14 are both provided with clamp holes, when the shaft retainer is installed, the clamp spring clamp can be used, the clamp mouth of the clamp spring clamp is inserted into the clamp holes, the shaft retainer 14 is expanded, the shaft retainer 14 is sleeved in the annular groove 8, and the shaft retainer 14 sleeved in the annular groove 8 protrudes out of the outer side wall of the shell 7 along the radial direction.

On the basis of the above embodiment, the dust cover 4 is provided on the outer periphery of the housing 7, the large diameter end of the dust cover 4 is fitted over the outer periphery of the housing 7, and the small diameter end of the dust cover 4 is fitted over the outer periphery of the shaft lever.

It should be noted that, because the minor diameter end of the dust cover 4 is sleeved on the outer periphery of the shaft lever, the minor diameter end of the dust cover 4 can move along with the movement of the shaft lever, so that the dust cover 4 deforms, when the material of the dust cover 4 is selected, the material with better elasticity, lower cost and longer service life can be selected, such as rubber, the deformation of the dust cover 4 can be also caused, in order to ensure that the two ends of the dust cover 4 can not move greatly after deformation, the outer periphery of the dust cover 4 can be axially arranged into a wave shape, so that the minor diameter end of the dust cover 4 can move in a larger range without sliding.

In addition to the above embodiment, in order to fix both ends of the dust cover 4, the first collar 3 is bound to the outer periphery of the small diameter end of the dust cover 4, and the second collar 6 is bound to the outer periphery of the large diameter end of the dust cover 4.

It should be noted that the number of the first collar 3 and the second collar 6 may be set according to actual needs, and when two or more first collars 3 or second collars 6 are provided, the two or more first collars 3 may be axially aligned and bound to the small-diameter end of the dust cover 4, and the two or more second collars 6 may be axially aligned and bound to the large-diameter end.

In order to fix the first and

second clamp rings

3 and 6 better, a first annular groove may be formed on the outer circumference of the small diameter end of the dust cover 4, a second annular groove may be formed on the outer circumference of the large diameter end of the dust cover 4, and the first clamp ring 3 and the second clamp ring 6 may be bound in the first and second annular grooves, respectively.

To further secure the large diameter end of the dust cap 4, a third annular groove may be provided on the outer circumference of the housing 7 and fitted into the third annular groove in alignment with the third annular groove and secured with a second collar 6.

In addition to the above embodiments, in consideration of friction between components, the cover 9 may be provided with an oil hole 13, an oil nipple 15 may be inserted into the oil hole 13, and the direction of the axial direction of the oil hole 13 may be collinear with the direction of the axial direction of the housing 7. The oil nozzle 15 is tubular, the periphery of the part of the oil nozzle 15, which is matched with the oil hole 13, is matched with the periphery of the oil nozzle 15, a limiting part is further arranged on the periphery of the oil nozzle 15 to ensure that the oil nozzle 15 cannot be completely inserted into the oil hole 13, and the periphery of the oil nozzle 15 on the other side of the limiting part is set to be wavy along the axial direction of the oil nozzle, so that an oil pipe cannot easily fall off when being connected to the periphery of the oil nozzle 15.

On the basis of the above embodiment, the end of the shaft rod is provided with a threaded section, the threaded section is provided with a pin hole 10, the pin hole 10 is internally provided with a split pin 11, and the threaded section from the pin hole 10 to the ball head is provided with a nut 1.

It should be noted that the threaded section is used to connect other components, such as a hole in a knuckle, and the threaded section may be inserted into the hole in the knuckle and then secured with the nut 1, and then the cotter pin 11 is inserted into the pin hole 10 to restrict the axial movement of the nut 1.

Preferably, the nut 1 is a hexagonal slotted nut, the hexagonal slotted nut is a protrusion extending axially along an end surface of the hexagonal nut, a slot is formed between the protrusion and the protrusion, after the hexagonal slotted nut is screwed, the slot is aligned with the pin hole 10, and the split pin 11 is inserted into the pin hole 10, so that the rotation of the hexagonal slotted nut can be limited, and the safety is further improved.

On the basis of the above embodiment, the inner side surface of the cover 9 is provided with an elastic member, a ball seat is arranged between the elastic member and the ball head, and the inner periphery of the ball seat is attached to the outer periphery of the ball head.

It should be noted that, the elastic component is used for supporting the ball head, so that the ball head does not shake greatly, and the ball seat has a damping effect. Because the wearing and tearing between ball seat and the bulb can cause the ball seat and take place the clearance between the bulb, use the elastic component to support the ball seat and promote the ball seat laminating in the bulb, every time after the wearing and tearing clearance increases between ball seat and the bulb, can make the clearance between bulb and the ball seat remain throughout at reasonable within range under the elasticity of elastic component to stabilize the bulb, increase the stability of bulb assembly.

Preferably, the elastic member is a spring 12, and the spring 12 has a gap and occupies a small space, and is reliable, and when the lubricating oil is filled into the housing 7, the spring 12 does not obstruct the oil path.

On the basis of the above embodiment, in order to further reduce the friction between the housing 7 and the ball head, the inner circumference of the small-diameter end is attached to the outer circumference of the ball head, i.e., the inner wall of the attachment of the small-diameter end and the ball head is set to be a spherical surface matched with the outer circumference of the ball head.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The above details are provided for the ball head assembly provided by the utility model. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A ball joint assembly, comprising: the ball head of the mandrel (2) is arranged in the through hole, the inner diameter of the large inner diameter end is larger than the outer diameter of the ball head, the inner diameter of the small inner diameter end is smaller than the outer diameter of the ball head and larger than the outer diameter of a shaft rod of the mandrel (2), when the ball head of the mandrel (2) is arranged in the shell (7), the rod part of the mandrel (2) penetrates through the small inner diameter end of the through hole, and the end part of the large inner diameter end is provided with a sealing cover (9); the periphery of the connecting part of the shaft lever and the ball head is sleeved with a shaft sleeve (5) for buffering.

2. A ball head assembly according to claim 1, wherein the housing (7) is provided with an annular groove (8) on its outer periphery, and a shaft retainer (14) is mounted in the annular groove (8).

3. A ball head assembly according to claim 1, wherein a dust cover (4) is provided on the outer periphery of the housing (7), the large diameter end of the dust cover (4) is fitted over the outer periphery of the housing (7), and the small diameter end of the dust cover (4) is fitted over the outer periphery of the shaft.

4. A ball head assembly according to claim 3, wherein the dust cover (4) is bound at its outer periphery at its small diameter end with a first collar (3) and the dust cover (4) is bound at its outer periphery at its large diameter end with a second collar (6).

5. A ball head assembly according to claim 1, wherein the cover (9) is provided with an oil hole (13), and an oil nipple (15) is inserted into the oil hole (13).

6. A ball head assembly according to claim 1, wherein the end of the shaft rod is provided with a threaded section, the threaded section is provided with a pin hole (10), the pin hole (10) is provided with a split pin (11), and the threaded section along the pin hole (10) to the ball head is provided with a nut (1).

7. A ball head assembly according to any of claims 1 to 6, wherein the cover (9) is provided with a resilient member on an inner side thereof, and a ball seat is provided between the resilient member and the ball head, the inner periphery of the ball seat engaging the outer periphery of the ball head.

8. A ball head assembly according to claim 7, wherein said resilient member is a spring (12).

9. A ball head assembly as claimed in claim 3, wherein an inner periphery of the small diameter end conforms to an outer periphery of the ball head.