CN217898499U - Steering tie rod joint - Google Patents

Abstract

The utility model provides a tie rod connects belongs to auto-parts technical field. It has solved the easy scheduling problem that drops from the ball round pin of current nut. This tie rod joint includes the joint body, ball round pin and bowl, and the ball round pin includes spheroid portion and pole portion, and the pole portion cover of ball round pin is equipped with lock nut, and lock nut includes flange portion, screw thread portion and inserts portion, is equipped with annular inserts in the inserts portion, and lock nut closes soon and installs in the pole portion of ball round pin, installs the back, the inner wall of inserts with the pole portion of ball round pin is hugged closely. The utility model discloses be equipped with the inserts in the lock nut, lock nut installs in the pole portion back of ball round pin, and inserts and ball round pin pole portion are hugged closely, form the outside rotatory friction torque of prevention lock nut to reach the locking function of lock nut auto-lock, lock nut is difficult for droing.

Description

Steering tie rod joint

Technical Field

The utility model belongs to the technical field of auto-parts, a tie rod connects is turned to is related to.

Background

The automobile becomes one of the most important tools for riding instead of walk in life, and the automobile steering tie rod joint is used for connecting the left wheel and the right wheel of the automobile and the automobile commutator, is a main connecting component in an automobile steering system, and plays an important role in the operation stability, the running stability and the safety of the automobile.

For example, chinese patent literature discloses a steering tie rod joint assembly with high sealing performance [ application number: 201720930604.5; authorization notice number: CN207064459U ], which comprises a ball pin, a dust cover collar, a joint, a ball seat, an end cover and a hexagonal slotted nut; the dust cover is arranged around the middle part of the ball pin, the bottom of the ball pin is provided with a ball seat, and the bottom of the ball seat is provided with an end cover; the ball pin consists of a ball body, a trapezoidal table and a cone; the upper end of the cone is provided with a threaded connecting part which is locked and fixed by a hexagonal slotted nut.

The steering pull rod joint assembly is locked and fixed through the hexagonal slotted nut, but after the steering pull rod joint assembly is used for a long time, the connection between the hexagonal slotted nut and the ball pin is possibly loosened, so that the hexagonal slotted nut falls off from the ball pin. And the hexagonal slotted nut is complex to process and higher in manufacturing cost.

In addition, the steering tie rod joint assembly realizes steering through the ball pin, but the ball pin is easy to clamp during steering, so that the steering of the automobile is difficult, and accidents are easy to occur. The existing tie rod joint needs to add lubricating oil to the joint regularly in order to ensure normal use, but the internal clearance of the steering joint is small and can not store more lubricating oil, so that the integrity of parts in a steering system is checked once when an automobile steering joint assembly is used, whether the lubricating oil in the steering joint is full is checked to determine whether the lubricating oil is added or not while the integrity of the parts in the steering system is checked, so as to implement maintenance on the automobile steering system, so that the maintenance cost of an automobile owner is increased, the automobile needs to be disassembled and reassembled to some extent in each check, the operation is quite troublesome, the lubricating oil can not be smoothly circulated in the joint, and the lubricating effect is poor.

Disclosure of Invention

The utility model aims at providing a realize locking nut auto-lock locking tie rod joint to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a tie rod joint, includes the joint body, ball round pin and ball bowl, its characterized in that, the tip system that connects the body has the ball seat, the system has the mounting hole on the ball seat, the ball bowl is located in the mounting hole, the system has curved mounting groove in the ball bowl, the ball round pin includes spheroid portion and pole portion, spheroid portion is located in the mounting hole and with the mounting groove is hugged closely, the pole portion cover of ball round pin is equipped with lock nut, lock nut includes flange portion, screw thread portion and inserts portion, flange portion with inserts portion is located respectively the both ends of screw thread portion, be equipped with annular inserts in the inserts portion, threaded portion is equipped with the screw thread, lock nut closes soon and installs the pole portion of ball round pin, the good back of installation, the inner wall of inserts with the pole portion of ball round pin is hugged closely.

In the tie rod joint, a lubricating oil cavity is reserved between the sphere part and the hole wall of the mounting hole, the sphere part is provided with two symmetrically arranged lubricating oil grooves, and each lubricating oil groove is annular and penetrates through the top and the bottom of the sphere part.

In the tie rod joint, a hole wall at one end of the mounting hole is inclined inwards to form an arc-shaped wall, a clamping block is arranged on a hole wall at the other end of the mounting hole, a clamping groove is formed in the clamping block, a bottom plate is arranged in the clamping groove, and the spherical part is tightly attached to the arc-shaped wall.

In the tie-rod joint, the middle of the bottom plate is recessed to form a movable block, and the bottom surface of the movable block and the bottom surface of the clamping block are coplanar.

In the tie rod joint, a butterfly-shaped gasket is disposed between the bottom plate and the ball bowl, and provides elasticity to make the ball bowl always abut against the ball body and make the ball body always abut against the arc-shaped wall.

In the tie rod joint, the tie rod joint further comprises a dust cover, two ends of the dust cover are respectively connected with the rod part of the ball pin and the ball seat, and two ends of the dust cover are positioned through the snap springs.

In the above tie-rod joint, the tie-rod joint further comprises a protective cover, the protective cover is sleeved on the rod portion of the ball pin and the outer side of the dust cover and contacts with the ball seat, and the rod portion of the ball pin penetrates through the protective cover and is sleeved with the lock nut.

In one tie rod joint of the above type, the insert is made of a nylon material.

Compared with the prior art, the insert is arranged in the locking nut of the utility model, the insert is tightly attached to the rod part of the ball pin after the locking nut is arranged on the rod part of the ball pin, so as to form a friction torque for preventing the locking nut from rotating outwards, thereby achieving the function of self-locking and anti-loosening of the locking nut, and the locking nut is not easy to fall off; the locking nut has simple structure and low manufacturing cost; the ball pin is provided with a lubricating oil cavity and a lubricating oil groove for storing lubricating grease, so that the lubricating property between the ball body part and the ball bowl is improved, the ball pin is smoother when steering, and a better buffering and vibration damping effect is also achieved; be provided with the safety cover, the safety cover plays guard action to the dust cover, avoids the rubble to strike the dust cover for the life of dust cover is longer.

Drawings

Fig. 1 is a schematic sectional structure of the present invention.

Fig. 2 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is an enlarged schematic view of B in fig. 2.

Fig. 4 is a schematic structural view of the joint body of the present invention.

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, 2, 3 and 4, the tie rod joint comprises a joint body 1, a lock nut 2, a ball pin 3, a dust cover 4, a protective cover 5, a ball bowl 6, a dish-shaped gasket 7 and a bottom plate 8, wherein a ball seat 12 is formed at the end part of the joint body 1, a mounting hole 14 is formed in the ball seat 12, the ball bowl 6 is positioned in the mounting hole 14, an arc-shaped mounting groove is formed in the ball bowl 6, and the ball bowl 6 is prevented from falling off from the mounting hole 14. The ball pin 3 comprises a ball part 31 and a rod part, and the ball part 31 is positioned in the mounting hole 14 and is tightly attached to the mounting groove. The hole wall of one end of the mounting hole 14 is inclined inwards to form an arc-shaped wall, the hole wall of the other end is provided with a clamping block 11, and the clamping block 11 is provided with a clamping groove. The bottom plate 8 is pressed into the mounting hole 14, so that the bottom plate 8 penetrates through the clamping block 11, the bottom plate 8 enters the clamping groove, and the bottom plate 8 prevents the ball bowl 6 from falling off from the mounting hole 14. The utility model discloses well joint body 1's tip direct system has the ball seat 12 that is used for installing ball round pin 3, has saved external ball seat in the past, tight circle and retaining ring, has reduced the manufacturing degree of difficulty, has saved the material, low in manufacturing cost.

In more detail, the middle of the bottom plate 8 is recessed to form a movable block 81, and the bottom surface of the movable block 81 and the bottom surface of the latch 11 are coplanar. Butterfly gasket 7 is located between bottom plate 8 and ball bowl 6, and butterfly gasket 7 provides elasticity and makes ball bowl 6 contradict in spheroid portion 31 and make spheroid portion 31 contradict in the arc wall all the time, and butterfly gasket 7 plays buffering damping effect, and butterfly gasket 7 can be changed into other elastic component.

A lubricating oil cavity 13 is reserved between the spherical part 31 and the wall of the mounting hole 14, the spherical part 31 is provided with two symmetrically arranged lubricating oil grooves 32, and each lubricating oil groove 32 is annular and penetrates through the top and the bottom of the spherical part 31. The lubricating oil cavity 13 and the lubricating oil groove 32 are used for storing lubricating grease, so that the lubricating property between the ball body part 31 and the ball bowl 6 is improved, the ball pin 3 is smoother when turning, and a better buffering and vibration damping effect is also achieved.

The two ends of the dust cover 4 are respectively connected with the rod part of the ball pin 3 and the ball seat 12, and the two ends of the dust cover 4 are positioned through the clamp springs. The dust cover 4 plays a dustproof role, and avoids the abrasion of the ball pin 3, so that the ball pin 3 works stably and has long service life.

The protective cover 5 is sleeved on the rod part of the ball pin 3 and the outer side of the dust cover 4 and is contacted with the ball seat 12. The protective cover 5 plays a role in protecting the dust cover 4, and avoids broken stones from impacting the dust cover 4, so that the service life of the dust cover 4 is longer.

The rod part of the ball pin 3 penetrates through the protective cover 5 and is sleeved with the locking nut 2. The lock nut 2 includes a flange portion 21, a threaded portion, and an insert portion 22, the flange portion 21 and the insert portion 22 being located at both ends of the threaded portion, respectively. The insert part 22 is provided with an annular insert 9, and the threaded part is provided with a threaded hole. The rod part of the ball pin 3 is provided with threads, and the locking nut 2 is screwed and installed on the rod part of the ball pin 3. After the locking nut 2 is installed, the inner wall of the insert 9 is tightly attached to the rod part of the ball pin 3, so that friction torque for preventing the locking nut 2 from rotating outwards is formed, the function of self-locking and anti-loosening of the locking nut 2 is achieved, and the locking nut 2 is not prone to falling off. The insert 9 is made of a nylon material. The lock nut 2 has a simple structure and low manufacturing cost.

Those not described in detail in this specification are well 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 (8)

1. The utility model provides a tie rod joint turns to, includes the joint body (1), ball round pin (3) and ball bowl (6), its characterized in that, the tip system of the joint body (1) has ball seat (12), the system has mounting hole (14) on ball seat (12), ball bowl (6) are located mounting hole (14) are interior, ball bowl (6) system has curved mounting groove, ball round pin (3) are including ball portion (31) and pole portion, ball portion (31) are located mounting hole (14) in and with the mounting groove is hugged closely, the pole portion cover of ball round pin (3) is equipped with lock nut (2), lock nut (2) are including flange portion (21), screw thread portion and inserts portion (22), flange portion (21) with inserts portion (22) are located respectively the both ends of screw portion, be equipped with annular inserts (9) in inserts portion (22), be equipped with the screw hole in the screw portion, lock nut (2) are hugged closely and are installed the pole portion of ball round pin (3), the installation back, the inner wall of inserts (9) and pole portion (3).

2. A tie rod joint according to claim 1, wherein a lubricating oil chamber (13) is reserved between the ball portion (31) and the wall of the mounting hole (14), the ball portion (31) has two symmetrically arranged lubricating oil grooves (32), and each lubricating oil groove (32) is annular and runs across the top and bottom of the ball portion (31).

3. The tie rod joint according to claim 1, wherein the wall of one end of the mounting hole (14) is inclined inward to form an arc-shaped wall, the wall of the other end is provided with a clamping block (11), the clamping block (11) is provided with a clamping groove, a bottom plate (8) is arranged in the clamping groove, and the ball part (31) is tightly attached to the arc-shaped wall.

4. A tie rod joint according to claim 3, wherein the central portion of said base plate (8) is recessed to form a movable block (81), and the bottom surface of said movable block (81) and the bottom surface of said latch block (11) are coplanar.

5. A tie rod joint according to claim 3, wherein a butterfly washer (7) is provided between the bottom plate (8) and the ball cup (6), said butterfly washer (7) providing a spring force such that the ball cup (6) always abuts against the ball portion (31) and such that the ball portion (31) always abuts against the curved wall.

6. The tie rod joint according to claim 1, further comprising a dust cover (4), wherein both ends of the dust cover (4) are respectively connected to the rod portion of the ball pin (3) and the ball seat (12), and both ends of the dust cover (4) are positioned by a snap spring.

7. A tie rod joint according to claim 1, further comprising a boot (5), wherein the boot (5) is fitted over the shaft portion of the ball pin (3) and the outer side of the dust cover (4) and contacts the ball seat (12), and the shaft portion of the ball pin (3) passes through the boot (5) and is fitted over the lock nut (2).

8. A tie rod joint according to any one of claims 1-7, wherein the insert (9) is made of a nylon material.

Images