CN220500810U

CN220500810U - Left knuckle arm

Info

Publication number: CN220500810U
Application number: CN202322162041.8U
Authority: CN
Inventors: 隋志毅; 郭建
Original assignee: Shandong Shizheng Industrial Technology Co ltd
Current assignee: Shandong Shizheng Industrial Technology Co ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-02-20
Anticipated expiration: 2033-08-11

Abstract

The utility model discloses a left steering knuckle arm, which comprises a mounting section, a first connecting seat and a second connecting seat, wherein a first connecting section for connecting the mounting section with the first connecting seat is arranged between the mounting section and the first connecting seat, a second connecting section for connecting the first connecting seat with the second connecting seat is arranged between the first connecting seat and the second connecting seat, the mounting section comprises a first mounting shaft and a second mounting shaft connected with the first mounting shaft, a positioning hole penetrating radially is formed in the position, close to the end part, of the first mounting shaft, a key slot is formed in the second mounting shaft, a structure surrounded by the first connecting section, the first connecting seat and the second connecting section is projected to be U-shaped in the vertical direction, the first connecting section comprises a first horizontal section and a first inclined section extending downwards from the left to the right direction, and the second connecting section comprises a second inclined section and a second horizontal section extending upwards from the front direction to the rear direction. The utility model has the characteristics of meeting the installation requirement and improving the overall strength.

Description

Left knuckle arm

Technical Field

The utility model relates to the field of automobile front axle accessories, in particular to a left knuckle arm.

Background

In the driving process of an automobile, the driving direction (steering) of the automobile is often changed, normally, when the automobile is in steering, a driver applies a steering torque to a steering wheel, the steering torque passes through a steering shaft, a transmission shaft and a steering gear, after the steering gear amplifies the steering torque, the steering torque is transmitted to a steering rocker arm, and then is transmitted to a steering knuckle and a steering knuckle arm on the steering knuckle through a steering tie rod, and finally is transmitted to a wheel hub, so that wheels deflect, and therefore, the steering knuckle arm is an important part in the steering mechanism of the automobile, is easy to break when subjected to large external force, is easy to damage when in frequent use, and needs to be replaced regularly or irregularly. The front axle has a plurality of parts, the installation position and the operation space of the knuckle arm are limited, the knuckle arm cannot be widened and thickened continuously, and the left knuckle arm needs to be careful to avoid interference with other parts in the moving process, so that the left knuckle arm is designed under the condition of meeting the strength, the stress and various technical requirements.

Disclosure of Invention

The utility model aims to provide a left knuckle arm which meets the installation requirement and improves the overall strength.

In order to solve the technical problems, the utility model comprises a mounting section, a first connecting seat and a second connecting seat, wherein a first connecting section for connecting the mounting section with the first connecting seat is arranged between the mounting section and the first connecting seat, and a second connecting section for connecting the first connecting seat with the second connecting seat is arranged between the first connecting seat and the second connecting seat, and the structure is characterized in that: the installation section includes first installation axle and the second installation axle of being connected with it, first installation axle is close to tip position and is equipped with radial locating hole that runs through, be equipped with the keyway on the second installation axle, first linkage segment, first connecting seat with the structure that the second linkage segment encloses is the U-shaped in vertical direction projection, first linkage segment includes first horizontal segment and from left to right direction downward sloping extended first inclination section, the second linkage segment includes from preceding second inclination section and the second horizontal segment of backward direction upward sloping extended, be equipped with the first connecting hole that the upside is cylindricality countersink, downside is big taper hole from top to bottom on the first connecting seat, the second connecting seat is equipped with big-end-up and is the second connecting hole of toper.

Furthermore, two positioning holes are vertically crossed.

Furthermore, the second mounting shaft is of a conical structure, and the diameter of the second mounting shaft gradually increases from the first mounting shaft to the first horizontal section.

Further, the radial cross section of the first horizontal section is circular, the radial cross section of the first inclined section is fusiform, the projection widths in the front-back direction are equal, and the projection widths in the vertical direction are gradually increased from left to right.

Further, the radial cross section of the second inclined section and the second horizontal section is rectangular, round chamfers are arranged at the corner positions, and the projection of the second connecting section in the vertical direction is an arc-shaped strip protruding from left to right.

Further, the second connecting seat is in a waist drum shape with two thin ends and a thick middle part along the axial direction.

Further, the installation section, the first connecting seat, the second connecting seat, the first connecting section and the second connecting section are of an integrated structure.

After adopting above-mentioned structure, through setting up the second installation axle into the taper structure, and its diameter becomes big gradually from first connecting axial first horizontal segment direction, can improve the intensity of installation section like this. Through setting the keyway as the keyway of semicircle key, when convenient processing, and stress concentration is less, lightens the weakening of counter shaft intensity. Through the structure that encloses first linkage segment, first connecting seat and second linkage segment be the U-shaped in vertical direction projection, when satisfying mounted position and processing technical requirement, can increase installation space, avoid interfering with other parts. Through setting the radial cross-section of first slope section to spindle shape, and equal, the projection width from left to right grow gradually in vertical direction projection width in fore-and-aft direction, under the circumstances of avoiding interfering, can increase the intensity of first linkage segment, become big when the right-hand member width of first linkage segment grow back with the area of contact of second connecting seat hookup location, avoid the hookup location of first slope section and second connecting seat to produce the crackle because of bearing too big external force. Through be equipped with the first connecting hole that the upside is cylindricality counter bore, the downside is big taper hole from top to bottom for big end down on first connecting seat, can avoid the protruding emergence of mounted position spare part to interfere through setting up the counter bore, guarantee that the mounting plane is level and smooth, then conveniently look for first connecting hole position through setting up the taper hole, convenient in the narrow and small space interpolation dress. Through setting the second connecting seat to the waist drum shape with both ends thin and middle thick along the axial direction, the bearing external force load intensity of intermediate position can be improved, and the larger stress requirement is satisfied.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a left side view of the present utility model;

FIG. 4 is a schematic cross-sectional view taken along the A-A direction of FIG. 2 in accordance with the present utility model;

FIG. 5 is a schematic view of a second mounting shaft according to the present utility model;

in the figure: the mounting section 1, the first mounting shaft 11, the positioning hole 111, the second mounting shaft 12, the key groove 121, the first connecting seat 2, the first connecting hole 21, the countersunk hole 211, the taper hole 212, the second connecting seat 3, the second connecting hole 31, the first connecting section 4, the first horizontal section 41, the first inclined section 42, the second connecting section 5, the second inclined section 51, the circular chamfer 511 and the second horizontal section 52.

Detailed Description

For convenience of description, the following front-back, up-down and left-right directions are based on fig. 1, the left side of fig. 1 is the left side, the upper side of fig. 1 is the upper side, and the direction perpendicular to the paper surface is the front.

Referring to fig. 1 to 5, the left knuckle arm includes a mounting section 1, a first connecting seat 2 and a second connecting seat 3, a first connecting section 4 connecting the mounting section 1 and the first connecting seat 2 is provided between the mounting section 1 and the first connecting seat 2, a second connecting section 5 connecting the first connecting seat 2 and the second connecting seat 3 is provided between the first connecting seat 2 and the second connecting seat 3, the mounting section 1 includes a first mounting shaft 11 and a second mounting shaft 12 connected with the first mounting shaft 11, a positioning hole 111 penetrating radially is provided near the end portion of the first mounting shaft 11, and preferably, the positioning hole 111 is provided with two vertically crossing. The second mounting shaft 12 has a tapered structure, and the diameter thereof gradually increases from the first mounting shaft 11 toward the first horizontal section 41, so that the strength of the mounting section 1 can be improved. The second mounting shaft 12 is provided with the key groove 121, and the key groove 121 is arranged to be matched with the key groove 121 of the semicircular key, so that the processing is convenient, the stress concentration of the key groove 121 is small, and the weakening of the strength of the shaft is reduced. The structure that first linkage segment 4, first connecting seat 2 and second linkage segment 5 enclose is the U-shaped in vertical direction projection, satisfies mounted position and processing technical requirement. The first connecting section 4 includes a first horizontal section 41 and a first inclined section 42 extending obliquely downward from left to right, the radial cross section of the first horizontal section 41 is circular, the purpose of the circular is to smoothly connect with the end of the second mounting shaft 12, the radial cross section of the first inclined section 42 is spindle-shaped (approximately oval), and the projection widths in the front-rear direction are equal, and the projection width in the vertical direction is gradually increased from left to right. The front-rear projection width is equal to avoid interference with other components when the first inclined section 42 swings in the steering direction. The projection width gradually increases from left to right in the vertical direction, so as to increase the strength of the first connecting section 4, and when the width of the right end of the first inclined section 42 increases, the contact area of the connecting position of the first inclined section 42 and the second connecting seat 3 increases, so that the connecting position of the first inclined section 42 and the second connecting seat 3 is prevented from generating cracks due to overlarge external force.

Referring to fig. 1 to 3, the second connection section 5 includes a second inclined section 51 and a second horizontal section 52 extending obliquely upward from the front to the rear, specifically, in order to meet design requirements, while in the case of improving overall strength, the radial sections of the second inclined section 51 and the second horizontal section 52 are rectangular and the corner positions are provided with round chamfers 511, the second connection section 5 is projected in the vertical direction to be an arc-shaped strip protruding from left to right, that is, the second connection section 5 is formed by smoothly connecting a plurality of arc-shaped sections with different radii, and is configured to be arc-shaped, so that occupied space can be reduced, interference with other components is avoided, and meanwhile, installation space is increased.

Referring to fig. 1-3, the first connecting seat 2 is provided with a first connecting hole 21 with a cylindrical countersunk hole 211 on the upper side and a conical hole 212 with a small upper part and a large lower part on the lower side, the purpose of the cylindrical countersunk hole 211 is to avoid the protruding interference of parts at the installation position, ensure the flatness of the installation plane, and the purpose of the same conical hole 212 is to conveniently find the position of the second connecting hole 31 and facilitate the insertion.

Referring to fig. 1 to 3, the second connection base 3 is provided with a second connection hole 31 having a large upper portion and a small lower portion and tapered, and the advantage of providing the second connection hole as a tapered hole is that: for the straight hole of current pinhole for with round pin axle complex, the toper is more convenient to install, because the upper end internal diameter of second connecting hole 31 is greater than the lower extreme internal diameter far away, can be very fast during the installation look for second connecting hole 31 position, during the installation, follow the upper end quick cartridge of second connecting hole 31, avoid because the installation environment is narrow and small, difficult searching second connecting hole 31 position leads to can not the quick installation problem to take place. Preferably, the second connecting seat 3 is in a waist drum shape with two thin ends and thick middle along the axial direction, the waist drum shape is a circular radial section, the section diameter from the two ends to the middle position along the axial direction is gradually increased, the strength of the middle position bearing the external force load is improved, the larger stress requirement is met, the mounting section 1, the first connecting seat 2, the second connecting seat 3, the first connecting section 4 and the second connecting section 5 are in an integrated structure, and the integrated structure processing can be carried out through a casting process during processing, so that cracks between the mutual connecting positions can be avoided, and the phenomenon of cracking when the large external force is applied is avoided.

Claims

1. The utility model provides a left knuckle arm, includes installation section (1), first connecting seat (2) and second connecting seat (3), installation section (1) with be equipped with first connecting section (4) with both connections between first connecting seat (2), first connecting seat (2) with be equipped with between second connecting seat (3) with second connecting section (5) of both connections, characterized by: the installation section (1) includes first installation axle (11) and rather than the second installation axle (12) of being connected, first installation axle (11) are close to tip position and are equipped with radial locating hole (111) that run through, be equipped with keyway (121) on second installation axle (12), first linkage segment (4), first connecting seat (2) with structure that second linkage segment (5) enclose is the U-shaped in vertical direction projection, first linkage segment (4) include first horizontal segment (41) and from left and right direction first inclination section (42) that incline to extend downwards, second linkage segment (5) include from preceding second inclination section (51) and second horizontal segment (52) that incline to extend upwards in the backward direction, be equipped with on first linkage segment (2) that the upside is cylindricality counter bore (211), the downside is big taper hole (212) in the top, second linkage segment (3) are equipped with big end down and are toper second connecting hole (31).

2. The left knuckle arm according to claim 1, characterized in that: the two positioning holes (111) are vertically crossed.

3. The left knuckle arm according to claim 1, characterized in that: the second mounting shaft (12) is of a conical structure, and the diameter of the second mounting shaft gradually increases from the first mounting shaft (11) to the first horizontal section (41).

4. The left knuckle arm according to claim 1, characterized in that: the radial cross section of the first horizontal section (41) is circular, the radial cross section of the first inclined section (42) is spindle-shaped, the projection widths in the front-back direction are equal, and the projection widths in the vertical direction gradually become larger from left to right.

5. The left knuckle arm according to claim 1, characterized in that: the second inclined section (51) and the second horizontal section (52) are rectangular in radial section, round chamfers (511) are arranged at corner positions, and the second connecting section (5) is projected in the vertical direction to form an arc-shaped strip protruding from left to right.

6. The left knuckle arm according to claim 1, characterized in that: the second connecting seat (3) is in a waist drum shape with two thin ends and thick middle along the axial direction.

7. The left knuckle arm according to any one of claims 1-6, characterized in that: the mounting section (1), the first connecting seat (2), the second connecting seat (3), the first connecting section (4) and the second connecting section (5) are of an integrated structure.