CN211196350U

CN211196350U - Ball seat

Info

Publication number: CN211196350U
Application number: CN201922045825.6U
Authority: CN
Inventors: 林童
Original assignee: Zhejiangtongshi Auto Parts Co ltd
Current assignee: Zhejiangtongshi Auto Parts Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-08-07
Anticipated expiration: 2029-11-22

Abstract

The utility model relates to a technical field of automobile parts, wherein disclose a ball seat for inlay and establish to the pull rod on, this ball seat cup joints on the bulb round pin, be columniform body including whole, the lower extreme of body inlays and establishes to the pull rod on, the pull rod is stretched out to the upper end of body, the coaxial draw-in groove that is equipped with of periphery of body upper end, the draw-in groove is the annular and is used for the joint dust cover, the tip of body upper end is equipped with the installation cavity that is used for holding the bulb round pin, just the lower extreme of installation cavity seals. The utility model discloses having the dust cover and installing on the draw-in groove of ball seat, and the ball seat body is cylindrically, usable conventional anchor clamps centre gripping, the processing of being convenient for, simultaneously, only need trompil in order to inlay on the pull rod and establish the ball seat, reduce the processing to the pull rod, the effect of the production pull rod assembly of being convenient for.

Description

Ball seat

Technical Field

The utility model belongs to the technical field of automobile parts's technique and specifically relates to a ball seat is related to.

Background

The ball pin assembly is used as a key part in an automobile steering system, is positioned between a steering gear and a steering knuckle arm, moves up and down along with a tire, and transmits the steering force of a steering wheel to the tire through the rotation and the swing of the ball pin so as to realize steering.

The current chinese patent with publication number CN205186274U discloses an automobile steering tie rod ball head assembly, which comprises a ball shell arranged at the end of a tie rod, wherein a ball seat is arranged in the ball shell, the lower end ball head part of a ball pin is arranged in the ball seat, a rear cover is arranged at the lower end of the ball shell, a movable space of the ball head part is formed between the concave surface of the rear cover and the ball seat and between the concave surface of the rear cover and the ball pin, a dust cover is arranged at the upper part of the ball shell, an annular groove used for clamping the dust cover is arranged at the outer part of the ball shell, and a double.

The above prior art solutions have the following drawbacks: the spherical shell and the pull rod are integrally arranged, and a plurality of grooves are required to be processed on the spherical shell: a caulking groove for the annular of joint dust cover, be used for installing the back lid, the pull rod of spherical shell one side influences the processing of spherical shell, needs special anchor clamps, and work piece centre gripping, processing all have inconveniently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a ball seat, dust cover are installed on in the draw-in groove of ball seat, and the ball seat body is cylindrically, and usable conventional anchor clamps centre gripping, the processing of being convenient for, simultaneously, only need trompil in order to inlay the ball seat on the pull rod, reduce the processing to the pull rod, the production pull rod assembly of being convenient for.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a ball seat for inlay and establish to the pull rod on, this ball seat cup joints on the bulb round pin, is columniform body including whole, the lower extreme of body inlays and establishes to the pull rod on, the pull rod is stretched out to the upper end of body, the coaxial draw-in groove that is equipped with of periphery of body upper end, the draw-in groove is the annular and is used for the joint dust cover, the tip of body upper end is equipped with the installation cavity that is used for holding the bulb round pin, just the lower extreme of installation cavity seals.

Through adopting above-mentioned technical scheme, the dust cover is installed on in the draw-in groove of ball seat, and the ball seat body is cylindrically, and usable conventional anchor clamps centre gripping, the processing of being convenient for, simultaneously, only need trompil in order to inlay on the pull rod and establish the ball seat, reduce the processing to the pull rod, the production pull rod assembly of being convenient for.

The utility model discloses further set up to: the ball bowl is embedded in the mounting cavity, and the ball head pin is embedded in the ball bowl.

Through adopting above-mentioned technical scheme, the ball bowl adopts plastics material usually, reduces the frictional wear between bulb round pin and ball seat, improves the ride comfort of bulb round pin at the ball seat internal rotation.

The utility model discloses further set up to: the lower extreme of ball bowl is equipped with the through-hole, the week side of through-hole is equipped with along its radial through-hole that extends.

Through adopting above-mentioned technical scheme, add lubricating oil in the installation cavity, through-hole, lead to the inside and outside of groove intercommunication ball bowl for lubricating oil gets into in the ball bowl, provides lubrication for bulb round pin and ball bowl.

The utility model discloses further set up to: the bottom of the mounting cavity is a conical surface, the lower end face of the ball bowl is attached to the conical surface, and the inner surface of the ball bowl is in spherical surface fit with the ball head pin.

Through adopting above-mentioned technical scheme, when the ball round pin swing and make its axis slope and ball seat axis have the contained angle, the lateral wall of the surface laminating installation cavity of ball bowl avoids ball bowl to deviate along with the ball round pin swing, and the lower terminal surface of ball bowl is established to the conical surface, the ball bowl location of being convenient for.

The utility model discloses further set up to: the periphery of the upper end of the body is a conical surface.

By adopting the technical scheme, after the ball head part of the ball head pin is placed in the mounting cavity, the necking process (necking is a forming process of reducing the mouth part of a pre-formed cylinder piece or pipe piece blank through a necking die) is utilized, so that the opening of the ball seat mounting cavity is reduced and smaller than the diameter of the ball head part, the position of the ball head part is limited, the ball head part is ensured to be embedded in the mounting cavity, and the conical surface is convenient for necking processing.

The utility model discloses further set up to: the periphery of body is equipped with keeps off the ring, keep off the ring and be located the below of annular and be used for the terminal surface of butt pull rod.

Through adopting above-mentioned technical scheme, when the ball seat inlays to establish to the pull rod, utilize the fender ring to realize the location.

The utility model discloses further set up to: the periphery of the lower end of the body is provided with a ring groove, and the ring groove is used for being embedded into the pull rod.

Through adopting above-mentioned technical scheme, realize the ball seat along the ascending location of ball seat axial on the pull rod.

The utility model discloses further set up to: the end part of the lower end of the body is coaxially provided with a hexagonal prism.

Through adopting above-mentioned technical scheme, in the installation, utilize the spanner to finely tune the position of body, the installation of being convenient for.

The utility model discloses further set up to: the periphery of the end part of the lower end of the body and the periphery of the hexagonal prism are provided with avoidance grooves.

Through adopting above-mentioned technical scheme, dodge the groove and be used for holding the instrument, avoid the hexagonal prism to stretch out the tip of body.

To sum up, the utility model discloses a beneficial technological effect does:

the dust cover is arranged in the clamping groove of the ball seat, the ball seat body is cylindrical, and can be clamped by a conventional clamp, so that the processing is convenient, meanwhile, only a hole is required to be formed in the pull rod to embed the ball seat, the processing of the pull rod is reduced, and the pull rod assembly is convenient to produce;

the ball bowl is usually made of plastic materials, and a slotted hole for lubricating oil to flow is formed in the ball bowl, so that the friction force of the swing of the ball pin is reduced, and the smoothness of the rotation of the ball pin in the ball seat is improved;

utilize to keep off ring, annular and accomplish the location, and the position of usable instrument joint hexagonal prism in order to finely tune the body in the installation, be convenient for accomplish the installation.

Drawings

Fig. 1 is a schematic view of the overall structure of the middle pull rod assembly of the present invention.

Fig. 2 is a schematic diagram of an exploded structure of the drawbar assembly.

Fig. 3 is a schematic view of the structure of the ball seat.

Fig. 4 is a sectional structure diagram of the draw bar assembly.

Fig. 5 is a schematic structural diagram of the ball bowl.

In the figure, 1, a pull rod; 11. a fixed part; 12. a movable portion 13, a protrusion; 2. a ball stud; 3. a dust cover; 41. a body; 411. a mounting cavity; 412. a card slot; 413. a conical surface; 414. a baffle ring; 415. a ring groove; 416. a hexagonal prism; 417. an avoidance groove; 42. a ball bowl; 421. a through hole; 422. a through groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a ball seat, be applied to on the pull rod assembly, this pull rod assembly still includes pull rod 1, bulb round pin 2 and dust cover 3, the ball seat is used for cup jointing on bulb round pin 2 and inlays to establish to pull rod 1, it is including wholly being columniform body 41, the tip of body 41 upper end is equipped with the installation cavity 411 that is used for holding bulb round pin 2, the lower extreme of body 41 inlays to locate on pull rod 1, refer to fig. 3 and 4, pull rod 1 is stretched out to the upper end of body 41 and its periphery is equipped with draw-in groove 412, utilize the jump ring realization to be fixed in draw-in groove 412 with dust cover 3.

During manufacturing, ball seat body 41 is cylindrical, and usable conventional anchor clamps centre gripping is convenient for process and is annular draw-in groove 412, simultaneously, only need trompil in order to inlay on pull rod 1 and establish the ball seat, reduce the processing to pull rod 1.

Referring to fig. 2 and 4, a ball bowl 42 is embedded in the mounting cavity 411, the bottom of the mounting cavity 411 is set as a conical surface 413, the lower end surface of the ball bowl 42 is attached to the conical surface 413 to position the ball bowl 42 in the mounting cavity 411, the ball head of the ball pin 2 is embedded in the ball bowl 42 and is matched through a spherical surface to enable the ball pin 2 to rotate in the ball bowl 42, after the ball head of the ball pin 2 and the ball bowl 42 are placed in the mounting cavity 411, the opening of the ball seat mounting cavity 411 is reduced and smaller than the diameter of the ball head by using a necking process, the position of the ball head is limited, and the ball head is ensured to be embedded in the mounting cavity 411, so that the periphery of the upper end of the cone body 41 is set as the conical surface 413 to be subjected.

Referring to fig. 4 and 5, ball bowl 42 often adopts the plastics material, reduce the frictional wear between bulb round pin 2 and ball seat, and the lower extreme of ball bowl 42 is equipped with through-hole 421, the week side of through-hole 421 is equipped with along its radial logical groove 422 that extends, add in the installation cavity 411 and have lubricating oil, through-hole 421, logical groove 422 are used for storing lubricating oil and communicate the inside and outside of ball bowl 42, make lubricating oil get into in the ball bowl 42, for bulb round pin 2 and ball bowl 42 provide the lubrication, improve the ride comfort of bulb round pin 2 at the ball seat internal rotation.

Referring to fig. 1 and 2, the pull rod 1 includes a fixed portion 11 and a movable portion 12 both in an arc shape, the fixed portion 11 and the movable portion 12 are spliced to form an annular structure for embedding the body 41, a protrusion 13 is disposed on one side of the fixed portion 11 opposite to the movable portion 12, a retaining ring 414 and a ring groove 415 are sequentially disposed on the periphery of the body 41 below the clamping groove 412 from top to bottom, when the ball seat is embedded on the pull rod 1, the clamping protrusion 13 is embedded in the ring groove 415, the retaining ring 414 abuts against the end surface of the pull rod 1, so as to achieve axial positioning of the ball seat on the pull rod 1 along the ball seat, referring to fig. 3, a hexagonal prism 416 is coaxially disposed at the lower end of the body 41, and an avoiding groove 417 is disposed on the periphery of the hexagonal prism 416, when the body 41 is mounted on the pull rod 1, tools such as a wrench can be used to.

The implementation principle of the embodiment is as follows: dust cover 3 is installed on in the draw-in groove 412 of ball seat, and ball seat body 41 is cylindrically, usable conventional anchor clamps centre gripping, the processing of being convenient for, simultaneously, only need trompil in order to inlay on pull rod 1 and establish the ball seat, reduce the processing to pull rod 1, be convenient for produce the pull rod assembly, simultaneously, when installing the ball seat to pull rod 1 on, utilize annular groove 415, keep off ring 414 and realize its axial positioning, and utilize the position of the hexagonal prism 416 of instrument joint so that finely tune the ball seat in the installer process, be convenient for accomplish the installation.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a ball seat for inlay and establish to pull rod (1) on, this ball seat cup joints on bulb round pin (2), its characterized in that: be columniform body (41) including whole, the lower extreme of body (41) inlays and establishes to pull rod (1) on, pull rod (1) is stretched out to the upper end of body (41), the periphery of body (41) upper end is coaxial to be equipped with draw-in groove (412), draw-in groove (412) are the annular and are used for joint dust cover (3), the tip of body (41) upper end is equipped with installation cavity (411) that are used for holding bulb round pin (2), just the lower extreme of installation cavity (411) is sealed.

2. A tee as set forth in claim 1, wherein: the ball bowl (42) is embedded in the mounting cavity (411), and the ball head pin (2) is embedded in the ball bowl (42).

3. A tee as set forth in claim 2, wherein: the lower extreme of ball bowl (42) is equipped with through-hole (421), the week side of through-hole (421) is equipped with along its radial extending's logical groove (422).

4. A tee as set forth in claim 2, wherein: the bottom of the mounting cavity (411) is provided with a conical surface (413), the lower end surface of the ball bowl (42) is attached to the conical surface (413), and the inner surface of the ball bowl (42) is in spherical surface fit with the ball pin (2).

5. A tee as set forth in claim 1, wherein: the outer periphery of the upper end of the body (41) is a conical surface (413).

6. A tee as set forth in claim 1, wherein: the periphery of body (41) is equipped with fender ring (414), fender ring (414) are located the below of annular groove (415) and are used for the terminal surface of butt pull rod (1).

7. A tee as set forth in claim 6, wherein: the periphery of the lower end of the body (41) is provided with a ring groove (415), and the ring groove (415) is used for being embedded into the pull rod (1).

8. A tee as set forth in claim 1, wherein: the end part of the lower end of the body (41) is coaxially provided with a hexagonal prism (416).

9. A tee as set forth in claim 8, wherein: an avoiding groove (417) is formed in the end portion of the lower end of the body (41) and located on the periphery of the hexagonal prism (416).