CN2869425Y

CN2869425Y - Steering bulb

Info

Publication number: CN2869425Y
Application number: CN 200620100321
Authority: CN
Inventors: 邹光久
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-13
Filing date: 2006-01-13
Publication date: 2007-02-14
Anticipated expiration: 2016-01-13

Abstract

The utility model provides a steering ball head and belongs to mechanical technology field. The utility model can resolve the problem of poor working stability in existing steering ball head. The steering ball head comprises a round head pin and outer casing, the round head pin is composed of integrated round head and ball arm, the round head is arranged in outer casing, the ball arm protrudes out of the outer casing, the round head sleeve is arranged between round head and outer casing, a connecting rod is out of outer casing and the outer casing has a cover, a through hole is arranged on the cover, a nozzle is fixed on the through hole and a sealing device is assembled on round head sleeve. In the utility model, the air pressure or oil pressure act on sealing device, the sealing device acts on round head sleeve and press the round head tightly through round head sleeve for keeping the round head pin rotating without moving. The steering ball head has high stability, reliable working and lower maintenance costs.

Description

Steering ball end

Technical field

The utility model belongs to field of mechanical technique, particularly a kind of automobile steering ball end.

Background technique

Steering ball end is the key component in the vehicle steering mechanism.Existing steering ball end comprises a part such as ball stud, shell, spring and lid.Ball stud is loaded in the shell, be connected with a lid on shell, be provided with a tension spring between lid and ball stud, the two ends of spring act on respectively on ball stud and the lid, elastic force by spring pushes against ball stud, ball stud can not be moved but can rotate.

As can be seen, in the steering ball end of said structure, in case spring failure, ball stud will become flexible, and steering equipment's friction noise is inevitable bigger.Also can cause the steering wheel shake when serious, cause potential safety hazard.

Summary of the invention

The purpose of this utility model is at the existing the problems referred to above of existing steering ball end, and a kind of structure improved steering ball end is provided, and makes that it has that maintenance cost is low, characteristics such as working stability, safe and reliable, long service life.

The purpose of this utility model can realize by following technical proposal: this steering ball end comprises a ball stud and shell, ball stud is made up of bulb that is connected as a single entity and club, bulb is loaded in the shell, and club stretches out shell, also is provided with ball-head cover between bulb and shell, there is a connecting rod in the outside of shell, it is characterized in that a lid is arranged on the described shell, on lid, have a through hole, be equipped with on the through hole and connect mouth, be provided with a seal arrangement at the ball-head cover place.

In above-mentioned steering ball end, described seal arrangement is a diaphragm seal of being located between lid and the ball-head cover.

This steering ball end is loaded in the steering equipment of vehicle, is a part crucial in the steering equipment.Connect mouth and pneumatic circuit or oil pipeline and connect, gas or hydraulic oil enter in the cavity through connecing mouth, and air pressure or oil pressure act on the diaphragm seal, and diaphragm seal acts on the ball-head cover, by ball-head cover bulb is tightly pushed down, and avoid ball stud to move but rotatable.

In above-mentioned steering ball end, described seal arrangement is a seal ring, and the sealing circle is loaded between ball-head cover and the shell.Because the setting of seal ring, air pressure or oil pressure directly act on and are about to bulb on the ball-head cover and tightly push down.Certainly, ball stud still can not move but be rotatable.

In above-mentioned steering ball end, have recessed retaining edge in the described cavity pocket of outer cover, above-mentioned lid is loaded on retaining along the place.Make lid with firm the covering of cavity by such structure.

In above-mentioned steering ball end, described diaphragm seal is between retaining edge and lid.When diaphragm seal is fixed between retaining edge and the lid firmly cavity is sealed up.

In above-mentioned steering ball end, it is recessed that the end face of described lid is sphere.Such structure can accumulate in gas or hydraulic oil in the cavity between lid and the diaphragm seal, forms enough pressure.

Compared with prior art, this steering ball end is pushed down bulb by air pressure or oil pressure, avoids ball stud loosening, and it can not be moved but rotatable.Obviously, air pressure and oil pressure can continue firm bulb is pushed down, high, the reliable operation of steering ball end stability.Simultaneously because diaphragm seal is subjected to air pressure or oil pressure effect bigger, diaphragm seal or seal ring damage the back change can and other part need not to change, therefore, it also has simple in structure, long service life, the characteristics that maintenance cost is low.

Description of drawings

Fig. 1 is the form structure schematic representation of steering ball end of the present utility model.

Fig. 2 is the cross-sectional view along Fig. 1.

Fig. 3 is embodiment's two cross-sectional view of the utility model steering ball end.

Among the figure, 1, ball stud; 11, bulb; 12, club; 2, shell; 21, retaining edge; 22, connecting rod; 3, seal ring; 4, diaphragm seal 5, lid; 51, through hole; 6, connect mouth; 7, ball-head cover; 71, annular groove.

Embodiment

Embodiment one

As depicted in figs. 1 and 2, this steering ball end is a part important in the vehicle steering mechanism, and it comprises ball stud 1, shell 2, lid 5 and diaphragm seal 4.

Ball stud 1 is made up of bulb 11 and club 12, and bulb 11 is connected as a single entity with club 12.

Shell 2 inside are cavity, and bulb 11 just is loaded in the cavity, and club 12 stretches out shell 2.One end of shell 2 has a connecting rod 22, is connecting a lid 5 on the shell 2, and ball-head cover 7, diaphragm seal 4 are housed between bulb 11 and the lid 5 successively.In the present embodiment, the inner chamber of shell 2 is provided with together recessed retaining along 21, and lid 5 just is loaded on retaining along on 21, and diaphragm seal 4 be crushed on retaining along 21 and lid 5 between.It is recessed that the end face of lid 5 is sphere, and have a through hole 51 thereon, is equipped with on the through hole 51 and connects mouth 6.

Connect mouth 6 and be connected with gas or hydraulic oil by pipeline, gas or hydraulic oil enter in the cavity between lid 5 and the diaphragm seal 4.When air pressure or oil pressure greatly to a certain degree the time with regard to crush seal sheet 4, diaphragm seal 4 is pushed ball-head cover 7, ball-head cover 7 is pushed bulb 11, thereby ball stud 1 pushed down firmly it can not be become flexible but rotatable.Obviously, by air pressure or oil pressure ball stud 1 is fixed, reliability is higher.

Embodiment two

As shown in Figure 3, present embodiment and embodiment's one structure and principle are basic identical, and different place is that seal arrangement is a seal ring 3, and the outside of ball-head cover 7 has annular groove 71 one, and seal ring 3 just is loaded in this annular groove 71.Because seal ring 3 between ball-head cover 7 and shell 2, therefore forms sealing herein.As can be seen, air pressure or oil pressure directly act on the ball-head cover 7 and to be about to ball stud 1 pushing down tightly in use.

Claims

1, a kind of steering ball end, comprise a ball stud (1) and shell (2), ball stud (1) is made up of bulb that is connected as a single entity (11) and club (12), bulb (11) is loaded in the shell (2), club (12) stretches out shell (2), between bulb (11) and shell (2), also be provided with ball-head cover (7), there is a connecting rod (22) in the outside of shell (2), it is characterized in that, a lid (5) is arranged on the described shell (2), on lid (5), have a through hole (51), be equipped with on the through hole (51) and connect mouth (6), locate to be provided with a seal arrangement at ball-head cover (7).

2, steering ball end according to claim 1 is characterized in that, described seal arrangement is a diaphragm seal (4) of being located between lid (5) and the ball-head cover (7).

3, steering ball end according to claim 1 is characterized in that, described seal arrangement is a seal ring (3), and sealing circle (3) is loaded between ball-head cover (7) and the shell (2).

4, steering ball end according to claim 2 is characterized in that, has recessed retaining in described shell (2) cavity along (21), and above-mentioned lid (5) is loaded on retaining and locates along (21).

5, steering ball end according to claim 4 is characterized in that, described diaphragm seal (4) is positioned at retaining along between (21) and the lid (5).

According to each described steering ball end of claim 1 to 5, it is characterized in that 6, it is recessed that the end face of described lid (5) is sphere.