CN213862402U - Left drag link arm - Google Patents

Abstract

The utility model provides a left side tie rod arm, the linkage segment including pillow block, bulb seat and connection pillow block and bulb seat, the linkage segment sets up to horizontal rear end kickup from horizontal front end, the bulb seat includes the pedestal that vertical front portion was equipped with the breach, the constant head tank has been seted up on the central point of pedestal puts, the lower part of pedestal is equipped with downward bellied petal type boss, the location screw of intercommunication constant head tank is seted up at the center of petal type boss, the pillow block sets up to vertical front end slope, set up the pinhole that link up pillow block up end and pillow block down terminal surface on the pillow block, the pinhole axis upper portion of pinhole sets up to vertical anterior slope. The utility model discloses have and to be convenient for the installation, increased installation space, strengthened the intensity of draw bar arm and avoided the technological effect that other parts interfered.

Description

Left drag link arm

Technical Field

The utility model relates to a left side tie rod arm.

Background

The drag link and the tie rod are two main parts of a steering system of an automobile, the drag link is a rod connected with a steering gear draw arm and a steering knuckle left arm, wheels can be controlled after power of a steering gear is transmitted to the steering knuckle, and the tie rod is connected with the left steering arm and the right steering arm, so that the two wheels can be synchronized, and toe-in can be adjusted. The tail end of the steering pull rod is connected with a steering knuckle through a ball joint, and the force is larger when the wheels are directly rotated by force, so most of vehicles are hydraulically steered at present, the force of drivers is reduced, and the steering is more flexible and easy to operate.

When an existing tie rod is installed, due to the fact that the installation environment is narrow, the tie rod arm needs to be fixed at the same time, particularly for fixing the pillow block, the existing pillow block and the ball seat are arranged in parallel, installation and use of the tie rod arm are affected, and stress of the tie rod arm is also affected.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to above problem, provide one kind and can be convenient for install, increased installation space, strengthened the intensity of pull rod arm and avoided the left side tie rod arm that other parts interfere.

For solving the technical problem, the utility model discloses a linkage segment of pillow block, bulb seat and connection pillow block and bulb seat, its structural feature is the linkage segment sets up to horizontal rear end kickup from horizontal front end, the bulb seat includes that vertical front portion is equipped with the pedestal of breach, the constant head tank has been seted up on the central point of pedestal puts, the lower part of pedestal is equipped with downward bellied petal type boss, the location screw of intercommunication constant head tank is seted up to the center of petal type boss, the pillow block sets up to vertical front end slope, set up the pinhole that link up pillow block up end and pillow block down end on the pillow block, the pinhole axis upper portion of pinhole sets up to vertical anterior slope.

After adopting above-mentioned structure, the position of bulb seat can be fixed to petal type boss, avoids the bulb seat to appear rotating, and the setting of location screw can be fixed the main part of cartridge in the constant head tank, the pinhole axis upper portion of pinhole sets up to vertical anterior slope and is convenient for the round pin axle to carry out the cartridge from a plurality of directions in the upper end of pillow block, avoids the interference of other parts, thereby treats that the round pin axle cartridge carries out the position after advancing the pinhole and ajusts and insert the pinhole fixedly with the pillow block, and the pinhole inclines to set up simultaneously, for straight hole the utility model provides an inner wall of pillow block is big with the area of contact of round pin axle, can reduce average atress relatively when the round pin axle will power transmission to the inner wall of pinhole, has reached the installation of being convenient for, avoids the high technological effect of stress concentration barrier propterty.

The axis of the pin hole and a straight line which is arranged along the up-down direction and penetrates through the pillow block form a set angle, and the set angle is 4-6 degrees.

The horizontal rear side of linkage segment is higher than the horizontal front side of linkage segment, and the width of linkage segment decreases progressively in proper order to horizontal rear end from horizontal front end, and the upper and lower direction's of linkage segment thickness is unanimous.

The opening end of the positioning groove is provided with a chamfer angle arranged relative to the outside, and the positioning screw hole is a countersunk head screw hole.

The upper end face of the seat body is provided with an upward convex upper boss, the positioning groove is formed in the center of the upper end face of the upper boss, the upper end face of the seat body is provided with a plurality of mounting holes surrounding the positioning holes, the mounting holes are counter bores, and the large-hole end rings of the counter bores surround the petal-shaped bosses.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic view of the structure in the direction C of FIG. 1;

figure 4 is a schematic view of the structure in the direction B-B of figure 1,

FIG. 5 is a schematic view of the D-D orientation of FIG. 3;

in the figure: 1-pillow block, 2-ball seat, 3-connecting section, 4-pin hole, 5-pin hole axis, 6-positioning groove, 7-mounting hole, 8-positioning screw hole and 9-petal type boss.

Detailed Description

For convenience of description, the left side in fig. 1 is taken as the horizontal front, the upper side is taken as the upper side, and the direction perpendicular to the paper surface is taken as the longitudinal front. Referring to fig. 1-5, this left tie rod arm includes pillow block 1, bulb seat 2 and linkage segment 3 of connecting pillow block 1 and bulb seat 2, linkage segment 3 sets up from horizontal front end to horizontal rear end kickup, the rear side of linkage segment 3 is higher than the front side of linkage segment 3, and the width of linkage segment 3 descends according to the preface from the left end to the right end, and the thickness of the upper and lower direction of linkage segment 3 is unanimous, under the earlier stage of guaranteeing the antitorque intensity of linkage segment 3, avoids the interference of other parts during the installation, when installing left tie rod arm, avoids the interference of other parts, guarantees simultaneously that linkage segment 3 can be connected bulb seat 2 and pillow block 1. The transverse front end of the connecting section 3 is connected with the ball cup 2, the ball cup 2 comprises a base body, the longitudinal front part of the base body is provided with a gap which can avoid component interference and does not influence the fixation of the ball cup 2, the central position of the upper end surface of the base body is provided with an upward convex platform, the central position of the upper end surface of the convex platform is provided with a positioning groove 6 extending downwards, the open end of the positioning groove 6 is provided with a chamfer arranged relatively to the outside, the upper end surface of the base body is provided with a plurality of mounting holes 7 surrounding the positioning holes, the mounting holes 7 are counter bores, the large bore end of each counter bore is arranged on the lower end surface of the base body, when the ball cup 2 is fixed, a mounting bolt penetrates into the mounting hole 7 from the lower part of the base body to fix the ball cup 2, the large bore of each counter bore can be used for placing the bolt head, so that the lower end of the base body is kept level, thereby avoiding the interference of other components, the installation space is increased. The lower part of the base body is provided with a petal-shaped boss 9 protruding downwards, and the petal-shaped boss is formed by milling the edge of a regular polygon into an arc shape. The location screw 8 of intercommunication constant head tank 6 is seted up at the center of petal type boss 9, location screw 8 is the countersunk screw, and petal type boss 9 can clamp in corresponding petal type hole, avoids bulb seat 2 to appear rotating, and threaded connection has positioning bolt in the location screw 8, and positioning bolt can carry out axial fixity with bulb seat 2, and positioning bolt's bolt head can be put into to the macropore department of countersunk screw, guarantees going deep of the smooth petal type boss 9 of the bulb seat 2 of being convenient for of petal type boss 9 lower part, realizes the fixed of bulb seat 2. The transverse rear end of the connecting section 3 is bent towards the longitudinal rear end, the transverse rear end of the connecting section 3 is connected with the pillow block 1, the pillow block 1 is obliquely arranged towards the longitudinal front end, a pin hole 4 penetrating through the upper end face of the pillow block 1 and the lower end face of the pillow block 1 is formed in the pillow block 1, the upper portion of a pin hole axis 5 of the pin hole 4 is obliquely arranged towards the longitudinal front portion, a set angle is formed between the pin hole axis 5 and a straight line which is arranged along the vertical direction and penetrates through the pillow block 1, and the set angle is 4-6 degrees. In the present embodiment, the pin hole axis 5 is inclined to the front in the longitudinal direction at an optimum set angle of 5 ° with respect to a line which is provided in the vertical direction and passes through the pillow block 1, and the lower portion of the pin hole axis 5 of the pin hole 4 is inclined to the rear in the longitudinal direction at the upper portion of the pin hole axis 5 of the pin hole 4 in the front view direction. The pinhole 4 setting this moment is convenient for the round pin axle insert, and the pillow block 1 is the cylindricality platform, and pillow block 1 need with round pin hub connection, and round pin axle transmission power is to pillow block 1, and the dotted line portion in pinhole 4 department in the picture is the round pin axle, and when the round pin axle cartridge arrived pinhole 4, the cartridge direction of round pin axle can be a plurality ofly to fix left drag link arm, reached and to have been convenient for install, avoided the high technological effect of stress concentration barrier propterty.

When the utility model is used, the positioning bolt is firstly connected in the positioning screw hole 8 by screw thread, then the ball head seat 2 is fixed, namely the petal-shaped boss 9 is put into the corresponding petal-shaped hole, the ball head seat 2 is prevented from rotating, the main body inserted in the positioning groove 6 can be fixed by the positioning screw hole 8, the upper part of the pin hole axis 5 of the pin hole 4 is inclined towards the longitudinal front part, so that the pin shaft can be inserted into the upper end of the pillow block 1 from multiple directions, the interference of other components is avoided, after the pin shaft is inserted into the pin hole 4, the pin shaft is rightly positioned and inserted into the pin hole 4, so that the pillow block 1 is fixed, meanwhile, the pin hole 4 is inclined and is opposite to a straight hole, the utility model provides an inner wall of pillow block 1 is big with the area of contact of round pin axle, and the round pin axle can reduce average atress relatively when will doing all can the power transmission to the inner wall of pinhole 4, has reached the installation of being convenient for, avoids the high technological effect of stress concentration barrier propterty.

Claims (5)

1. A left transverse pull rod arm comprises a pillow block (1), a ball head seat (2) and a connecting section (3) for connecting the pillow block (1) and the ball head seat (2), it is characterized in that the connecting section (3) is arranged from the transverse front end to the transverse rear end in an upward bending way, the ball head seat (2) comprises a seat body with a gap at the longitudinal front part, a positioning groove (6) is arranged at the central position of the seat body, the lower part of the seat body is provided with a petal-shaped boss (9) which protrudes downwards, the center of the petal-shaped boss (9) is provided with a positioning screw hole (8) which is communicated with the positioning groove (6), the pillow block (1) is arranged obliquely towards the longitudinal front end, a pin hole (4) penetrating through the upper end surface of the pillow block (1) and the lower end surface of the pillow block (1) is arranged on the pillow block (1), the upper part of a pin hole axis (5) of the pin hole (4) is inclined towards the longitudinal front part.

2. The left tie rod arm according to claim 1, characterized in that the pin bore axis (5) is at a set angle of 4 ° -6 ° to a line running in the up-down direction and through the pillow block (1).

3. The left tie rod arm according to claim 1, wherein the lateral rear side of the connecting section (3) is higher than the lateral front side of the connecting section (3), the width of the connecting section (3) decreases progressively in sequence from the lateral front end to the lateral rear end, and the thickness of the connecting section (3) in the up-down direction is uniform.

4. The left tie rod arm according to claim 1, wherein the open end of the positioning slot (6) is provided with a chamfer disposed opposite the exterior, and the positioning screw hole (8) is a countersunk screw hole.

5. The left tie rod arm of claim 1, wherein an upper boss protruding upwards is provided at a central position of the upper end surface of the seat body, the positioning groove (6) is provided at a central position of the upper end surface of the upper boss, a plurality of mounting holes (7) surrounding the positioning hole are provided on the upper end surface of the seat body, the mounting holes (7) are counter bores, and a large-bore end of the counter bores is provided around the petal-shaped boss (9).

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