CN214367238U

CN214367238U - Automobile pull rod assembly

Info

Publication number: CN214367238U
Application number: CN202120442002.1U
Authority: CN
Inventors: 黄华燕
Original assignee: Taizhou Ouxing Machinery Co ltd
Current assignee: Taizhou Ouxing Machinery Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-10-08
Anticipated expiration: 2031-03-01

Abstract

The utility model provides an automobile pull rod assembly belongs to car a steering technical field. The ball head pin and the ball head seat solve the problems of high installation precision and inconvenient assembly of the existing ball head pin and the existing ball head seat. The automobile pull rod assembly comprises a ball head pin and a ball head seat, an upper spring seat, a lower spring seat and a conical spring are arranged in a ball head cavity of the ball head seat, the upper spring seat is of a bowl-shaped structure, the upper spring seat is attached to the outer wall of the ball head pin, a bolt used for supporting is arranged between the lower spring seat and the bottom of the ball head cavity of the ball head seat, the bolt is in threaded connection with the bottom of the ball head cavity of the ball head seat, and the head of the bolt is abutted to the matching of the lower spring seat. The utility model discloses the stable assembly of bulb seat and bulb round pin has reduced the assembly precision of bulb seat and bulb round pin, convenient assembly, stable in structure.

Description

Automobile pull rod assembly

Technical Field

The utility model belongs to the technical field of the auto steering system, a car pull rod assembly is related to.

Background

The steering pull rod assembly for the automobile mainly bears the steering and supporting functions of a steering system, is one of the most important parts in the steering system, mainly bears the steering function of the automobile in the running process, and plays a key role in the operation stability and the running safety of the automobile.

For example, chinese patent literature discloses an automobile steering tie rod ball [ application number: 201620839473.5, respectively; authorization notice number: CN205937450U ], it includes pull rod and bulb, and the bulb sets up in the ball seat, and the ball seat is located the inside of bulb shell, the bulb under the terminal surface be provided with the pressure pad, bulb shell below be provided with the closing cap, be provided with pressure spring between closing cap and pressure pad, the cladding has the rubber sleeve in pressure spring's the outside.

According to the above patent description, as shown in the drawings of the specification, the ball seat is fixed by the sealing cover in the conventional shell assembly, and the sealing cover is pressed in, which has high requirements on the mounting precision of the sealing cover, and if the final position of the sealing cover deviates, the ball seat is not fixed stably, so that the rod body is not stable in movement, and the service life is short.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, convenient assembling, bulb seat and ball round pin assembly are stable, reduce the car pull rod assembly of installation accuracy.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides an automobile pull rod assembly, includes bulb round pin and bulb seat, the one end of bulb round pin have the bulb, the bulb seat on have the bulb chamber, the bulb of bulb round pin be located the bulb intracavity of bulb seat, rivet in the upper limb in the bulb chamber of this bulb seat and form the throat of the bulb of connecting the bulb round pin, its characterized in that, the bulb intracavity of bulb seat be provided with spring holder, lower spring holder and conical spring, conical spring be located between spring holder, the lower spring holder, upper spring holder be bowl structure, this upper spring holder pastes the bulb outer wall of bulb round pin, the bottom in the bulb chamber of lower spring holder and bulb seat between be provided with the bolt that is used for supporting, the bottom screw connection in the bulb chamber of this bolt and bulb seat, the head and the lower spring holder of this bolt lean on the cooperation.

In practical application, the bolt at the bottom of the ball head cavity of the ball head seat is loosened in a spiral mode, so that the elastic acting force of the conical spring between the upper spring seat and the lower spring seat is small, and the ball head of the ball head pin is convenient to assemble in the ball head cavity of the ball head seat; when the ball head of the ball head pin is assembled in the ball head cavity of the ball head seat, the lower spring seat is screwed tightly, the lower spring seat is located upwards, the conical spring increases the elastic acting force, the upper spring seat is enabled to be tightly attached to the ball head of the ball head pin, the movable connection of the ball head pin in the ball head cavity of the ball head seat is ensured to be loosened, the assembling is convenient, and the structure is stable.

In foretell car pull rod assembly, the bolt be provided with a plurality of, this bolt is along the bottom circumference interval distribution of the bulb chamber of bulb seat, the edge of the bottom of lower spring holder the edge of have the platykurtic to support and lean on the ring, the lower surface circumference interval distribution that supports and lean on the ring have and be the axial groove of supporting that sets up downwards, the head of bolt support and lean on supporting to lean on in the groove of corresponding support ring. The purpose of the arrangement is to ensure that when the bolt presses the lower spring seat, the lower spring seat is pressed uniformly, and the pressing structure is stable.

In the automobile pull rod assembly, a circular abutting plate is embedded in the groove bottom of the abutting groove of the abutting ring, and the head of the bolt is in abutting fit with the circular abutting plate. The purpose of setting up like this is to ensure the stability of bolt and lower spring holder roof pressure structure, improves the mechanical strength of bolt roof pressure, prevents bolt and lower spring holder constant pressure skew.

In foretell car pull rod assembly, the bottom of going up the spring holder bowl bottom that the downward arch set up has, bowl bottom built-in be equipped with lubricating oil, the intermediate position of bowl bottom the perforating hole has, the perforating hole in the sealed packing have the rubber sprue, the rubber sprue be located between last spring holder, the lower spring holder. The lubricating oil is used for lubricating between the ball head part and the ball head seat of the ball head pin, and the structure is stable.

In foretell car pull rod assembly, the rubber sprue include round platform portion and column portion, round platform portion, column portion link together structure as an organic whole with the axial, column portion sliding seal in the perforating hole of bowl bottom, the inner wall of round platform portion and lower spring holder support to lean on the cooperation. When the circular table part is pressed by the lower spring seat, the columnar part slides upwards in the through hole at the bottom of the bowl and moves, the lubricating oil overflows upwards from the bottom of the bowl to lubricate the ball head part of the ball stud, and the structure is stable.

In the automobile pull rod assembly, an arc-shaped groove is formed in the middle of the bottom of the circular table portion, and a notch of the arc-shaped groove of the circular table portion is abutted and matched with the inner wall of the lower spring seat. The purpose of setting up like this is that make round platform portion and lower spring holder have the effect that elasticity leaned on, and the elastic deformation ability of round platform portion is stronger.

In the automobile pull rod assembly, the ball head cavity of the ball head seat is internally provided with the support sleeve, and the upper spring seat is abutted and matched with the support sleeve. The purpose that sets up like this can effectively prevent the deformation of going up the spring holder, stable in structure.

Compared with the prior art, this car pull rod assembly's advantage does: the structure design is simple and reasonable, the top pressure structure design of the bolt realizes the stable assembly of the ball head seat and the ball head pin, the assembly precision of the ball head seat and the ball head pin is reduced, the assembly is convenient, the structure is stable, the stability of the transportation performance of the ball head pin in the ball head seat is further ensured, and the service life is long.

Drawings

Fig. 1 is a schematic sectional structure view of the automobile tie rod assembly.

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

In the drawings, 1, a ball stud; 2. a ball cup seat; 3. a ball head portion; 4. necking; 5. an upper spring seat; 6. a lower spring seat; 7. a conical spring; 8. a bolt; 9. an abutment ring; 10. a circular backup plate; 11. a bowl bottom; 12. lubricating oil; 13. a circular table portion; 14. a columnar portion; 15. an arc-shaped slot; 16. and a support sleeve.

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 automobile tie rod assembly mainly comprises a ball stud 1 and a ball headstock 2, wherein one end of the ball stud 1 is provided with a ball head 3, the ball headstock 2 is provided with a ball head cavity, the ball head 3 of the ball stud 1 is positioned in the ball head cavity of the ball headstock 2, the upper edge of the ball head cavity of the ball head seat 2 is internally riveted with a necking 4 connected with the ball head 3 of the ball head pin 1, an upper spring seat 5, a lower spring seat 6 and a conical spring 7 are arranged in the ball head cavity of the ball head seat 2, the conical spring 7 is positioned between the upper spring seat 5 and the lower spring seat 6, the upper spring seat 5 is in a bowl-shaped structure, the upper spring seat 5 is attached to the outer wall of the ball head part 3 of the ball pin 1, a bolt 8 for supporting is arranged between the lower spring seat 6 and the bottom of the ball cavity of the ball head seat 2, the bolt 8 is spirally connected with the bottom of the ball cavity of the ball seat 2, and the head of the bolt 8 is abutted and matched with the lower spring seat 6; during actual design, a plurality of bolts 8 are arranged, the bolts 8 are circumferentially distributed along the bottom of a ball head cavity of the ball head seat 2 at intervals, the edge of the bottom of the lower spring seat 6 is provided with a flat abutting ring 9, abutting grooves which are axially and downwardly arranged are circumferentially distributed on the lower surface of the abutting ring 9 at intervals, and the head of each bolt 8 abuts against the corresponding abutting groove of the abutting ring 9; the bottom of the leaning groove of the leaning ring 9 is embedded with a round leaning plate 10, and the head of the bolt 8 is matched with the round leaning plate 10 in a propping and contacting mode.

During actual manufacturing, the bottom of the upper spring seat 5 is provided with a bowl bottom 11 which is arranged in a downward protruding mode, lubricating oil 12 is filled in the bowl bottom 11, a through hole is formed in the middle of the bowl bottom 11, a rubber block is filled in the through hole in a sealing mode and is located between the upper spring seat 5 and the lower spring seat 6; specifically, the method comprises the following steps: the rubber block mainly comprises a circular table part 13 and a columnar part 14, wherein the circular table part 13 and the columnar part 14 are coaxially connected into an integral structure, the columnar part 14 is sealed in a sliding way in a through hole of the bowl bottom part 11, and the circular table part 13 is abutted and matched with the inner wall of the lower spring seat 6; in actual manufacturing, the bottom of the circular table portion 13 has an arc-shaped groove 15 at an intermediate position, and the notch of the arc-shaped groove 15 of the circular table portion 13 and the inner wall of the lower spring seat 6 are in abutting engagement.

In practical application, a support sleeve 16 is arranged in a ball cavity of the ball seat 2, and the upper spring seat 5 is in abutting fit with the support sleeve 16.

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. The automobile pull rod assembly comprises a ball pin (1) and a ball seat (2), wherein a ball head (3) is arranged at one end of the ball pin (1), a ball head cavity is formed in the ball seat (2), the ball head (3) of the ball pin (1) is located in the ball head cavity of the ball seat (2), a necking opening (4) for connecting the ball head (3) of the ball pin (1) is formed in the upper edge of the ball head cavity of the ball seat (2) in a riveting mode, the automobile pull rod assembly is characterized in that an upper spring seat (5), a lower spring seat (6) and a conical spring (7) are arranged in the ball head cavity of the ball seat (2), the conical spring (7) is located between the upper spring seat (5) and the lower spring seat (6), the upper spring seat (5) is of a bowl-shaped structure, the upper spring seat (5) is attached to the outer wall of the ball head (3) of the ball pin (1), and a screw for supporting is arranged between the bottom of the ball head cavity of the lower spring seat (6) and the ball seat (2) And the bolt (8) is in threaded connection with the bottom of the ball head cavity of the ball head seat (2), and the head of the bolt (8) is in butt fit with the lower spring seat (6).

2. The automobile pull rod assembly according to claim 1, wherein a plurality of bolts (8) are arranged, the bolts (8) are circumferentially distributed along the bottom of the ball cavity of the ball seat (2) at intervals, the edge of the bottom of the lower spring seat (6) is provided with a flat abutting ring (9), abutting grooves axially arranged downwards are circumferentially distributed on the lower surface of the abutting ring (9) at intervals, and the head of each bolt (8) abuts against the corresponding abutting groove of the abutting ring (9).

3. The vehicle tie rod assembly of claim 2, wherein a circular abutting plate (10) is embedded in the bottom of the abutting groove of the abutting ring (9), and the head of the bolt (8) is in abutting fit with the circular abutting plate (10).

4. The automobile pull rod assembly according to claim 3, wherein the bottom of the upper spring seat (5) is provided with a bowl bottom (11) which is arranged to protrude downwards, lubricating oil (12) is filled in the bowl bottom (11), a through hole is formed in the middle of the bowl bottom (11), a rubber block is hermetically filled in the through hole, and the rubber block is positioned between the upper spring seat (5) and the lower spring seat (6).

5. The automobile tie rod assembly of claim 4, wherein the rubber block comprises a circular table part (13) and a column part (14), the circular table part (13) and the column part (14) are connected into a whole in the same axial direction, the column part (14) is in sliding seal in a through hole of the bowl bottom (11), and the circular table part (13) is in abutting fit with the inner wall of the lower spring seat (6).

6. The vehicle tie rod assembly of claim 5, wherein the central position of the bottom of the circular table portion (13) is provided with an arc-shaped groove (15), and the notch of the arc-shaped groove (15) of the circular table portion (13) is abutted and matched with the inner wall of the lower spring seat (6).

7. The vehicle tie rod assembly of claim 6, wherein a support sleeve (16) is arranged in the ball head cavity of the ball head seat (2), and the upper spring seat (5) is in abutting fit with the support sleeve (16).