CN212149005U

CN212149005U - Automobile steering tie rod assembly

Info

Publication number: CN212149005U
Application number: CN202020989007.1U
Authority: CN
Inventors: 叶真祥; 欧光永
Original assignee: Taizhou Feinuo Machinery Co ltd
Current assignee: Taizhou Feinuo Machinery Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-12-15
Anticipated expiration: 2030-06-03

Abstract

The utility model provides an auto steering tie rod assembly belongs to auto-parts technical field. The adjusting device solves the problems that the toe-in value of the existing automobile steering tie rod is inconvenient to adjust and the like. This automobile steering tie rod assembly includes the joint, the body of rod, the bulb round pin, joint one end has the ball seat, be equipped with the cladding in the last bowl on bulb portion upper portion in the ball seat, the bottom of ball seat has linked firmly bottom plate and is equipped with down the bowl between bottom plate and the bulb portion, it has the cladding in the cladding portion in the bowl outside down to go up the bowl, the joint is even with the body of rod through the adjusting collar of tube-shape, the outer wall of adjusting collar has the external screw thread with body of rod threaded connection, the inner wall of adjusting collar has the internal thread with joint threaded connection, the external screw thread and the internal screw thread of adjusting collar revolve to opposite, the tip outer wall that the adjusting collar stretches out the body of rod has the clamping face, the body of rod supplies. The utility model has the advantages of convenient adjustment of toe-in value, good buffering and vibration damping effect, long service life and the like.

Description

Automobile steering tie rod assembly

Technical Field

The utility model belongs to the technical field of auto-parts, a auto-steering accessory is related to, in particular to auto-steering tie rod assembly.

Background

The steering tie rod is an important part in the steering mechanism of the automobile, and directly influences the stability of the operation of the automobile, the running safety and the service life of tires. The steering tie rod is divided into two types, namely a steering tie rod and a steering tie rod, the steering tie rod takes the task of transmitting the motion of a steering rocker arm to a steering knuckle arm, and the steering tie rod is the bottom edge of a steering trapezoid mechanism and is a key part for ensuring the right and left steering wheels to generate a correct motion relation.

For example, chinese patent literature discloses a novel steering linkage assembly for an automobile [ application number: 201520023056.9, respectively; authorization notice number: CN204383565U ], which comprises a ball head, a locking nut and a steering tie rod, wherein two ends of the steering tie rod are respectively connected with a ball head and fixed by the locking nut, the locking nut is provided with a handle, and the rod of the steering tie rod is provided with a through hole.

The novel automobile steering pull rod assembly drives the locking nut to rotate through the handle, the pry bar passes through the through hole, the rod body is rotated, thereby achieving the purpose of adjusting the length of the steering pull rod and correcting the toe-in value of the front wheels, but the operation requires that the steering pull rod is a straight rod, in reality, the steering rods are all bent rods, so the toe-in value cannot be adjusted according to the operation, if the toe-in value is adjusted by rotating the joint of the ball head and the pointing direction of the ball head is necessarily ensured to be fixed, the angle rotated by the joint is required to be multiple of 360 degrees, the center distance error is adjusted by at least one circle of thread pitch, so that the fact that the joint of one side of the steering tie rod is rotated first is realized, if the toe-in value is exceeded by rotating one circle and the toe-in value is withdrawn by one circle and the requirement is not met, the joint on the other side is rotated again, and the adjustment is not convenient enough when the toe-in value meets the requirement in a matching manner; and the buffering and damping effect of the ball head is not ideal enough, the problem of loose abnormal sound is easily generated, and the service life is short.

Disclosure of Invention

The utility model aims at providing an automobile steering tie rod assembly that toe-in value is convenient, buffering damping is effectual, long service life before the adjustment 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: an automobile steering tie rod assembly comprises a joint, a rod body and a ball pin, wherein one end of the joint is provided with a ball seat, the head part of the ball pin is positioned in the ball seat, the rod part of the ball pin extends out of the ball seat, an upper ball bowl which is coated on the upper part of the head part is arranged in the ball seat, the bottom of the ball seat is fixedly connected with a bottom plate, a lower ball bowl is arranged between the bottom plate and the head part, it is characterized in that the upper ball bowl is provided with a coating part which extends axially and is coated outside the lower ball bowl, the joint is connected with the rod body through a cylindrical adjusting sleeve, the outer wall of the adjusting sleeve is provided with an external thread in threaded connection with the rod body, the inner wall of the adjusting sleeve is provided with an internal thread in threaded connection with the joint, the thread turning directions of the external thread and the internal thread of the adjusting sleeve are opposite, the tip outer wall that stretches out the body of rod of adjusting collar have the clamping face, the body of rod supply the tip cover that the adjusting collar is connected to be equipped with the clamp.

In the above-mentioned vehicle tie rod assembly, the joint is threadedly connected with a locking threaded sleeve for abutting against the end of the adjusting sleeve. After the toe-in value is adjusted, the locking screw sleeve is rotated to be abutted against the end part of the adjusting sleeve, so that the adjusting sleeve is prevented from rotating, and the use stability is improved.

In the automobile tie rod assembly, the end part of the adjusting sleeve extending out of the rod body is radially outwards protruded, and the clamping surfaces are six surfaces and are circumferentially and uniformly distributed. The end part of the adjusting sleeve extending out of the rod body has high structural strength and is convenient to clamp.

In foretell vehicle steering tie rod assembly, the tip that the body of rod supplied the adjusting collar to connect have a plurality of circumference equipartitions and the radial strip groove that runs through, the notch in strip groove axial extension and strip groove be for communicateing in the opening of body of rod tip. The setting in bar groove, the body of rod tip of being convenient for receives the clamp effect and deformation locking, and locking nature is good, and stability in use is good.

In the above vehicle tie rod assembly, the clamp includes a body, a bolt and a nut, the bolt passes through two ends of the body and is connected with the nut by screw thread, and the outer wall of the body has at least two rings of reinforcing ribs.

In the above-mentioned tie rod assembly for steering of an automobile, the joint has a threaded column in threaded connection with the adjusting sleeve, the joint has a transition section that transitions to the threaded column, and the outer wall of the transition section is in a conical surface shape, and the transition section is connected to the threaded section and has a fillet or a chamfer. The transition section plays the component effect, and the recessive crack of screw thread section root is got rid of to fillet or chamfer, also avoids stress concentration, and the structural strength of joint department is high, and bearing capacity is good, long service life.

In the above-mentioned vehicle steering tie rod assembly, the lower ball bowl has an oil storage hole which axially penetrates through, the inner wall of the upper ball bowl, the top wall of the lower ball bowl and the outer wall of the ball head part enclose a circle of oil containing cavity, and the ball head part has two circles of crossed lubricating grooves. The oil storage hole, hold oil pocket and lubrication groove and all supply lubricating grease to store and circulate, have guaranteed the lubricity of bulb department, reduce wear, have prolonged life, and lubricating grease in the oil storage hole is extruded by the bulb, also plays buffering damping effect, avoids loose abnormal sound.

In the automobile steering tie rod assembly, the rod part is sleeved with the dust cover, and the lower end of the dust cover is sleeved with the clamp spring and embedded in the annular groove formed in the outer wall of the ball seat. The dust cover plays dustproof, waterproof effect, avoids impurity to cause bulb wearing and tearing, has prolonged life.

Compared with the prior art, this automobile steering tie rod assembly's structural strength is high, and through the setting of adjusting collar, it is convenient to adjust toe-in value, and the stability in use is good moreover, and the damping buffering effect of bulb round pin department is good, and the lubricity is good, effectively avoids the production of the spacious abnormal sound problem of pine, long service life.

Drawings

FIG. 1 is a front view of the structure of the present automotive tie rod assembly.

FIG. 2 is a side view of the structure of the present automotive tie rod assembly.

FIG. 3 is a front view of the structure of the adjusting sleeve in the present vehicle tie rod assembly.

Fig. 4 is an enlarged view of the structure of fig. 1 at circle a.

In the figure, 1, a joint; 11. a threaded post; 12. a transition section; 2. a rod body; 21. a strip-shaped groove; 3. a ball stud; 31. a ball head portion; 311. a lubrication groove; 32. a rod portion; 4. a ball seat; 5. putting a ball bowl; 51. a covering part; 52. an oil accommodating cavity; 6. a base plate; 7. a ball bowl is arranged; 71. an oil storage hole; 8. an adjusting sleeve; 81. an external thread; 82. an internal thread; 83. a clamping surface; 9. clamping a hoop; 91. a hoop body; 92. a bolt; 93. a nut; 94. reinforcing ribs; 10. locking the threaded sleeve; 13. a dust cover.

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 assembly for a vehicle steering comprises a joint 1, a rod 2 and a ball stud 3, wherein one end of the joint 1 is provided with a ball seat 4, a ball head 31 of the ball stud 3 is positioned in the ball seat 4, a rod part 32 of the ball stud 3 extends out of the ball seat 4, an upper ball bowl 5 which is coated on the upper part of the ball head 31 is arranged in the ball seat 4, the bottom of the ball seat 4 is fixedly connected with a bottom plate 6 through riveting, a lower ball bowl 7 is arranged between the bottom plate 6 and the ball head 31, the upper ball bowl 5 is provided with a coating part 51 which extends axially and is coated outside the lower ball bowl 7, the joint 1 is connected with the rod 2 through a cylindrical adjusting sleeve 8, the outer wall of the adjusting sleeve 8 is provided with an external thread 81 which is in threaded connection with the rod 2, the inner wall of the adjusting sleeve 8 is provided with an internal thread 82 which is in threaded connection with the joint 1, the external thread 81 and the internal thread 82, the end part of the rod body 2, which is connected with the adjusting sleeve 8, is sleeved with a hoop 9. The body of rod 2 is the cavity body, and it is convenient in the tip processing internal thread, and when structural strength and the solid body of rod were unanimous moreover, the light in weight of this body of rod 2 satisfied lightweight design.

When the toe-in value of the automobile steering tie rod assembly is adjusted, the clamping surface 83 of the adjusting sleeve 8 is clamped through tools such as a wrench or a caliper, the adjusting sleeve 8 is rotated, and the external thread 81 and the internal thread 82 of the adjusting sleeve 8 are opposite in spiral direction, so that the joint 1 and the rod body 2 are close to or away from each other, the directional change of the ball pin 3 cannot be caused, the problem of thread pitch does not need to be considered, the adjustment is convenient and fast, the precision is high, after the toe-in value is adjusted, the hoop 9 is locked at the end part of the rod body 2, the adjusting sleeve 8 is prevented from rotating, and the use stability; go up ball bowl 5 and ball bowl 7 down and avoid bulb portion 31 wearing and tearing, cladding 51 plays the buffering supporting role to ball bowl 7 down, and ball bowl 7 is used for a long time also is difficult for expanding outward down, has guaranteed the buffering damping effect to bulb portion 31, avoids the production of pine spacious abnormal sound, has prolonged life.

In order to have good use stability, the connector 1 is in threaded connection with a locking threaded sleeve 10 which is used for abutting against the end part of the adjusting sleeve 8, the end part of the rod body 2, which is used for connecting the adjusting sleeve 8, is provided with two strip-shaped grooves 21 which are uniformly distributed in the circumferential direction and run through in the radial direction, the strip-shaped grooves 21 extend in the axial direction, and the notches of the strip-shaped grooves 21 are open ports communicated with the end part of the rod body 2; for structural strength height and centre gripping convenience, the tip that adjusting collar 8 stretches out the body of rod 2 is radial evagination, and the quantity of clamping surface 83 is six and circumference equipartition.

The clamp 9 comprises a clamp body 91, a bolt 92 and a nut 93, wherein the bolt 92 penetrates through two end parts of the clamp body 91 and is in threaded connection with the nut 93, and the outer wall of the clamp body 91 is provided with two rings of reinforcing ribs 94, so that the clamp 9 is simple in structure and good in practicability, and the reinforcing ribs 94 enable the clamp body 91 to be high in structural strength and long in service life.

For high structural strength and long service life, the joint 1 is provided with a threaded column 11 in threaded connection with the adjusting sleeve 8, the joint 1 is provided with a transition section 12 which is transited to the threaded column 11, the outer wall of the transition section 12 is in a conical surface shape, the transition section 12 is connected with the threaded section and is provided with a fillet, and the fillet can be replaced by a chamfer angle during actual manufacturing; in order to achieve good lubricating property and improve certain buffering and vibration damping effects, the lower ball bowl 7 is provided with an oil storage hole 71 which axially penetrates through the lower ball bowl, a circle of oil containing cavity 52 is defined by the inner wall of the upper ball bowl 5, the top wall of the lower ball bowl 7 and the outer wall of the ball head part 31, and the ball head part 31 is provided with two circles of crossed lubricating grooves 311; in order to prevent dust and prolong the service life, the rod part 32 is sleeved with a dust cover 13, and the lower end of the dust cover 13 is externally sleeved with a clamp spring and embedded in an annular groove formed in the outer wall of the ball seat 4.

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. An automobile steering tie rod assembly comprises a joint (1), a rod body (2) and a ball pin (3), wherein one end of the joint (1) is provided with a ball seat (4), a ball head part (31) of the ball pin (3) is positioned in the ball seat (4), a rod part (32) of the ball pin (3) extends out of the ball seat (4) to be arranged, an upper ball bowl (5) coated on the upper part of the ball head part (31) is arranged in the ball seat (4), the bottom of the ball seat (4) is fixedly connected with a bottom plate (6), a lower ball bowl (7) is arranged between the bottom plate (6) and the ball head part (31), the automobile steering tie rod assembly is characterized in that the upper ball bowl (5) is provided with a coating part (51) which axially extends and is coated on the outer side of the lower ball bowl (7), the joint (1) is connected with the rod body (2) through a cylindrical adjusting sleeve (8), the outer wall of the adjusting sleeve (8) is provided with an external thread (81) in, the inner wall of adjusting collar (8) have with connect (1) threaded connection's internal thread (82), the screw thread of external screw thread (81) and internal thread (82) of adjusting collar (8) is revolved to opposite, adjusting collar (8) the tip outer wall that stretches out the body of rod (2) have clamping face (83), the body of rod (2) the tip cover that supplies adjusting collar (8) to connect be equipped with clamp (9).

2. The tie rod assembly according to claim 1, wherein the joint (1) is threadedly connected with a locking screw sleeve (10) for abutting against the end of the adjusting sleeve (8).

3. The tie rod assembly according to claim 2, wherein the end of the adjusting sleeve (8) extending beyond the rod body (2) is radially outwardly convex, and the number of the clamping surfaces (83) is six and circumferentially and evenly distributed.

4. The tie rod assembly according to claim 3, wherein the end of the rod body (2) to which the adjustment sleeve (8) is connected is provided with a plurality of strip-shaped grooves (21) which are circumferentially and uniformly distributed and radially penetrate, the strip-shaped grooves (21) axially extend, and the notches of the strip-shaped grooves (21) are open openings communicated with the end of the rod body (2).

5. The tie rod assembly as claimed in claim 4, wherein the clamp (9) includes a body (91), a bolt (92) and a nut (93), the bolt (92) passes through both ends of the body (91) and is threadedly coupled to the nut (93), and the outer wall of the body (91) has at least two rings of ribs (94).

6. The tie rod assembly according to claim 5, wherein the joint (1) has a threaded post (11) in threaded connection with the adjusting sleeve (8), the joint (1) has a transition section (12) transitioning to the threaded post (11) and the outer wall of the transition section (12) is conical, and the transition section (12) has a rounded or chamfered corner where the threaded portion is connected.

7. The tie rod assembly according to claim 6, wherein the lower ball bowl (7) has an oil storage hole (71) axially penetrating therethrough, the inner wall of the upper ball bowl (5), the top wall of the lower ball bowl (7) and the outer wall of the ball head portion (31) define a ring of oil containing cavity (52), and the ball head portion (31) has two rings of intersecting lubrication grooves (311).

8. The tie rod assembly according to claim 7, wherein the rod portion (32) is sleeved with a dust cover (13), and a clamp spring is sleeved at the lower end of the dust cover (13) and embedded in an annular groove formed in the outer wall of the ball seat (4).