CN212479896U

CN212479896U - Ball head assembly

Info

Publication number: CN212479896U
Application number: CN202021268142.3U
Authority: CN
Inventors: 陈选华
Original assignee: Yuhuan Leteng Machinery Manufacturing Co ltd
Current assignee: Yuhuan Leteng Machinery Manufacturing Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-02-05
Anticipated expiration: 2030-07-02

Abstract

The utility model provides a bulb assembly belongs to auto-parts technical field. The dust cover of the ball head assembly solves the problems that the dust cover of the existing ball head assembly is deformed by reciprocating folding, is easy to oxidize and break, loses the protection effect and is short in service life. This bulb assembly includes bulb shell, bulb round pin, ball bowl, and the bulb portion of bulb round pin is adorned in the ball bowl, and the pole portion of bulb round pin stretches out the bulb shell setting, is provided with the lag between bulb round pin and the bulb shell, and the pole portion of bulb round pin is located to the upper end cover mouth movable sleeve of lag, and on the bulb shell was located to the lower extreme cover mouth cover of lag, be provided with the lower extreme cover mouth that enables the lag between lower extreme cover mouth and the bulb shell and follow the elasticity of bulb shell upper and lower elastic displacement and support the device. The utility model discloses the lag replaces the deformation of self through displacement, can effectively avoid reciprocal a book deformation of rolling over, and the oxidation is broken, and structural stability is high, long service life.

Description

Ball head assembly

Technical Field

The utility model belongs to the technical field of auto-parts, a bulb assembly is related to.

Background

The ball head assembly is one of the most important parts in a suspension system, 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.

For example, chinese patent literature discloses an automobile steering ball pin [ application number: 201120225237.1, respectively; authorization notice number: CN202180847U ], which comprises a ball head seat, a ball head pin and a dust cover, wherein the central axis of the ball head seat forms an angle of 8 degrees with the metal plate, and forms an angle of 30 degrees with the horizontal plane, the upper end of the outer surface of the seat body is provided with a circle of clamping grooves, the ball head seat is provided with three connecting holes, the bottom of the ball head pin is of a sphere structure, the middle part of the ball head pin is of a frustum structure, the top of the ball head pin is of a screw structure, the central position of the screw is provided with a pin hole, the upper end of the.

In foretell car steering ball round pin, this dust cover upper end and bulb round pin fastening connection, the lower extreme is fixed in the draw-in groove of bulb seat, and when the bulb round pin rotated the pulling dust cover in the bulb seat, this dust cover all carries out elastic deformation through the elasticity of self, and when using for a long time, this dust cover is reciprocal to be rolled over a deformation, and easy oxidation is broken, loses the effect of protection, and life is short, and it is inconvenient to use.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, lag difficult oxidation when using is broken, long service life's bulb assembly.

The purpose of the utility model can be realized by the following technical proposal: a ball head assembly comprises a ball head shell, a ball head pin arranged in the ball head shell, and a ball bowl arranged in the ball head shell and in contact with the ball head pin, wherein the ball head part of the ball head pin is arranged in the ball bowl, and the rod part of the ball head pin extends out of the ball head shell.

This bulb assembly is mainly provided with elasticity between the lower extreme linking of lag and the bulb shell and leans on the device, leans on the device to make the lag whole displacement on the bulb shell through elasticity, and when the bulb round pin rotation angle is less in the bulb shell, this lag replaces the deformation of self through the displacement, avoids the lag to turn over a deformation, increases life in a reciprocating way.

In foretell bulb assembly, the lag establish for the rubber sleeve, the cuff diameter of this lag establishes from top to bottom crescent and is the bellows form, the upper end cuff department of lag establish the portion one that annular cover established, this annular cover establishes the portion one and inlays and be equipped with hoop one, the lower cuff department of lag establish the portion two that annular cover established, this annular cover establishes the portion two that embedded hoop two that is equipped with, the annular cover of the upper end cuff of lag establish the portion one establish the contact through hoop one with the pole portion cover of bulb round pin, the annular cover of the lower cuff of lag establish the portion two pass through hoop two and establish the contact with the bulb shell cover. The rod part of the ball stud is in a tapered shape gradually increasing from top to bottom, and the annular sleeving part I at the lower end opening of the protecting sleeve is more and more tight in downward displacement on the rod part of the ball stud, so that the purpose of setting is to effectively prevent dust from entering between the ball stud and the ball shell, and the structure is stable.

In the above ball head assembly, the elastic abutting device comprises an expansion spring, the ball head shell is detachably and fixedly connected with a spring seat, the expansion spring is sleeved on the ball head shell and is positioned between the spring seat and the second annular sleeve part of the lower end sleeve opening of the protecting sleeve, the upper end of the expansion spring is elastically abutted on the spring seat, and the lower end of the expansion spring is elastically abutted on the second annular sleeve part of the lower end sleeve opening of the protecting sleeve. The purpose that sets up like this is that when the annular cover of the lower extreme running-on of lag establishes two and upwards shift on the bulb shell, extrudees the whole aversion that upwards of expanding spring earlier, and when expanding spring compressed to the spring holder on, this lag is again by the deformation of the bellows form axial elasticity expansion of self, and the purpose that sets up like this makes the lag reduce the elastic deformation of self, increases the life of lag.

In foretell bulb assembly, the spring holder be the annular sheath, the lower extreme of annular sheath has an axial flange, expanding spring's upper end elasticity support and lean on the lower extreme terminal surface at the annular sheath of spring holder, and be located the inboard of the axial flange of annular sheath. The purpose that sets up like this is that carry out expanding spring's radial spacing through the axial flange, when expanding spring compressed to the spring holder on, can prevent effectively that expanding spring's upper end from at the radial drunkenness of the lower extreme terminal surface of annular sleeve, stable in structure.

In the ball head assembly, the inner wall of the spring seat is provided with an internal thread, the outer wall of the upper end of the ball head shell is provided with a reducing step, the reducing step is provided with an external thread, and the internal thread of the spring seat is in threaded connection with the external thread of the reducing step. The purpose of setting like this can be through the adjustable expanding spring's of the axial position of spring holder on the undergauge step position elastic force, convenient to use.

In the ball head assembly, the oil through holes radially penetrating through the ball head shell are distributed on the outer wall of the upper end of the ball head shell at intervals in the circumferential direction, and the inner end of each oil through hole is communicated with the inside of the ball head shell. The purpose that sets up like this is that the outer wall of the upper end of bulb shell slides through the annular cover of the lower extreme running-on of lag makes outside fluid pass through the oil through hole and gets into inside the bulb shell, makes the ball bowl of bulb shell inner wall lubricated, makes the bulb portion of bulb round pin slide more stably in the ball bowl.

In the ball head assembly, the top of the ball head shell is a riveting edge which is riveted inwards, and an annular gasket is arranged between the riveting edge and the ball bowl. The purpose that sets up like this is that the ball bowl is at the internal assembly of bulb shell, stable in structure, long service life.

Compared with the prior art, the ball head assembly has the advantages that: structural design is reasonable, simple, and when the bulb round pin was less at bulb shell internal rotation angle, this lag was through displacement replacement self deformation, can effectively avoid reciprocal rolling over a deformation, and the oxidation is broken, and structural stability is high, long service life, convenient to use.

Drawings

Fig. 1 is a schematic sectional structure diagram of the ball head assembly.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure, 1, a ball head shell; 2. a ball stud; 3. a ball bowl; 4. a protective sleeve; 5. a first annular sleeving part; 6. a first hoop; 7. a second annular sleeving part; 8. a second hoop; 9. a tension spring; 10. a spring seat; 11. an axial flange; 12. reducing the diameter of the step; 13. an oil through hole; 14. riveting and pressing edges; 15. a gasket.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the ball head assembly mainly comprises a ball head housing 1, a ball head pin 2 arranged inside the ball head housing 1, and a ball bowl 3 arranged inside the ball head housing 1 and contacting with the ball head pin 2, wherein a ball head part of the ball head pin 2 is arranged in the ball bowl 3, a rod part of the ball head pin 2 extends out of the ball head housing 1, a protective sleeve 4 is arranged between the ball head pin 2 and the ball head housing 1, an upper end socket of the protective sleeve 4 is movably sleeved on the rod part of the ball head pin 2, and a lower end socket of the protective sleeve 4 is sleeved on the ball head housing 1; during actual manufacturing, the specific structure of the protective sleeve 4 is as follows: this lag is established 4 and is the rubber sleeve, this lag 4's cuff diameter from top to bottom crescent is the bellows form, lag 4's upper end cuff department has the annular cover and establishes one 5, inlay on this annular cover establishes one 5 and is equipped with hoop one 6, lag 4's lower extreme cuff department has the annular cover and establishes two 7, this annular cover establishes two 7 embedded hoops that are equipped with two 8 of portion, lag establishes 4's upper end cuff's annular cover and establishes one 5 and establish the contact through hoop one 6 and ball round pin 2's pole portion cover, lag 4's lower extreme cuff's annular cover establishes two 7 and establishes the contact through hoop two 8 and ball shell 1 cover.

During actual manufacturing, an elastic abutting device capable of enabling the lower end socket of the protecting sleeve 4 to elastically displace up and down along the ball head shell 1 is arranged between the lower end socket of the protecting sleeve 4 and the ball head shell 1; the specific implementation mode of the elastic abutting device is as follows: the ball head casing is mainly composed of a telescopic spring 9, a spring seat 10 is detachably and fixedly connected to the ball head casing 1, the telescopic spring 9 is sleeved on the ball head casing 1 and is positioned between the spring seat 10 and a second annular sleeving part 7 of a lower end sleeving opening of the protecting sleeve 4, the upper end of the telescopic spring 9 is elastically abutted against the spring seat 10, and the lower end of the telescopic spring 9 is elastically abutted against the second annular sleeving part 7 of the lower end sleeving opening of the protecting sleeve 4; specifically speaking: the spring seat 10 is an annular sleeve, an axial flange 11 is arranged at the lower end of the annular sleeve, and the upper end of the extension spring 9 elastically abuts against the lower end face of the annular sleeve of the spring seat 10 and is located on the inner side of the axial flange 11 of the annular sleeve.

In practical application, the specific connection structure of the spring seat 10 and the ball head shell 1 is as follows: an internal thread is arranged on the inner wall of the spring seat 10, a reducing step 12 is arranged on the outer wall of the upper end of the ball head shell 1, an external thread is arranged on the reducing step 12, and the internal thread of the spring seat 10 is in threaded connection with the external thread of the reducing step 12.

During actual manufacturing, oil through holes 13 radially penetrating through the ball head shell 1 are circumferentially distributed on the outer wall of the upper end of the ball head shell 1 at intervals, and the inner ends of the oil through holes 13 are communicated with the inside of the ball head shell 1.

In actual manufacturing, the top of the ball head shell 1 is a riveting edge 14 which is riveted inwards, and an annular gasket 15 is arranged between the riveting edge 14 and the ball bowl 3.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A ball head assembly comprises a ball head shell (1), a ball head pin (2) arranged in the ball head shell (1), a ball bowl (3) arranged in the ball head shell (1) and contacted with the ball head pin (2), the ball head part of the ball head pin (2) is arranged in the ball bowl (3), the rod part of the ball head pin (2) extends out of the ball head shell (1), it is characterized in that a protective sleeve (4) is arranged between the ball pin (2) and the ball shell (1), the upper end of the protective sleeve (4) is movably sleeved on the rod part of the ball pin (2), the lower end socket of the protective sleeve (4) is sleeved on the ball head shell (1), an elastic abutting device which can enable the lower end socket of the protective sleeve (4) to elastically move up and down along the ball head shell (1) is arranged between the lower end socket of the protective sleeve (4) and the ball head shell (1).

2. The ball head assembly according to claim 1, wherein the protective sleeve (4) is a rubber sleeve, the diameter of the opening of the protective sleeve (4) gradually increases from top to bottom and is in a bellows shape, a first annular sleeve portion (5) is arranged at the upper opening of the protective sleeve (4), a first hoop (6) is embedded in the first annular sleeve portion (5), a second annular sleeve portion (7) is arranged at the lower opening of the protective sleeve (4), a second hoop (8) is embedded in the second annular sleeve portion (7), the first annular sleeve portion (5) at the upper opening of the protective sleeve (4) is in sleeve contact with the rod portion of the ball head pin (2) through the first hoop (6), and the second annular sleeve portion (7) at the lower opening of the protective sleeve (4) is in sleeve contact with the ball head shell (1) through the second hoop (8).

3. The ball head assembly according to claim 2, wherein the elastic abutting means comprises a telescopic spring (9), a spring seat (10) is detachably and fixedly connected to the ball head housing (1), the telescopic spring (9) is sleeved on the ball head housing (1) and is located between the spring seat (10) and the second annular sleeved portion (7) of the lower end opening of the protecting sleeve (4), the upper end of the telescopic spring (9) elastically abuts against the spring seat (10), and the lower end of the telescopic spring (9) elastically abuts against the second annular sleeved portion (7) of the lower end opening of the protecting sleeve (4).

4. A ball head assembly according to claim 3, wherein the spring seat (10) is an annular sleeve, the lower end of the annular sleeve is provided with an axial flange (11), and the upper end of the expansion spring (9) elastically abuts against the lower end face of the annular sleeve of the spring seat (10) and is located inside the axial flange (11) of the annular sleeve.

5. The ball joint assembly according to claim 4, wherein the inner wall of the spring seat (10) is provided with an internal thread, the outer wall of the upper end of the ball joint housing (1) is provided with a reducing step (12), the reducing step (12) is provided with an external thread, and the internal thread of the spring seat (10) is screwed on the external thread of the reducing step (12).

6. The ball head assembly according to claim 5, wherein oil through holes (13) radially penetrating the ball head housing (1) are circumferentially distributed at intervals on the outer wall of the upper end of the ball head housing (1), and the inner ends of the oil through holes (13) are communicated with the inside of the ball head housing (1).

7. A ball head assembly according to claim 6, characterized in that the top of the ball head housing (1) is an inwardly riveted rivet (14), and an annular gasket (15) is arranged between the rivet (14) and the ball bowl (3).