CN215155008U

CN215155008U - Steering rocker arm

Info

Publication number: CN215155008U
Application number: CN202120966504.4U
Authority: CN
Inventors: 庄勇新
Original assignee: Yuhuan Zhenfen Automobile Parts Factory
Current assignee: Yuhuan Zhenfen Automobile Parts Factory
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-12-14
Anticipated expiration: 2031-05-07

Abstract

The utility model provides a steering rocker arm belongs to mechanical technical field. The problem that the service life of an existing steering rocker arm still needs to be prolonged is solved. The utility model provides a steering rocker arm, including the arm body, first connecting seat and second connecting seat, the arm body is buckled and is "dog class" font, the arm body includes linkage segment and lower linkage segment, it has the boss of protrusion in first connecting seat left end face to lie in the arm body and the continuous department of first connecting seat on the upper end of linkage segment to go up, the boss includes the bead, preceding bead and back bead, the bead is the arc and sets up along the lower edge of first connecting seat left end face, preceding bead and back bead are located the front side and the rear side of bead respectively, the front end of bead links to each other with preceding bead, the rear end of bead links to each other with the back bead, the left side portion of preceding bead and the left side portion of back bead all bulge in the left surface of bead, and the left surface of the left side of preceding bead and the left side of back bead all flushes with the left surface of last linkage segment. This steering rocker arm can improve life.

Description

Steering rocker arm

Technical Field

The utility model belongs to the technical field of machinery, a steering rocker arm is related to.

Background

The steering rocker arm is an important component of a vehicle steering system, is used for connecting a steering gear and a steering drag link, and can transmit torque and motion output by the steering gear to the steering drag link. The steering rocker arm comprises an arm body, a first connecting seat and a second connecting seat, wherein the first connecting seat is integrally connected to the upper end of the arm body, the second connecting seat is integrally connected to the lower end of the arm body, a first connecting hole is formed in the first connecting seat, and a second connecting hole is formed in the second connecting seat. The steering gear is connected with the first connecting seat through the first connecting hole, and the steering drag link is connected with the second connecting seat through the second connecting hole. When the steering gear is used, the steering rocker arm is driven by the steering gear to swing, so that the steering rocker arm swings to drive the steering straight pull rod to move, and the steering of a vehicle is realized.

To avoid the steering rocker arm from breaking during use, chinese patent literature discloses a steering rocker arm [ application number: CN 201620883162.9, publication number: CN205952065U, set up the boss on the both ends of first connecting seat and second connecting seat promptly, strengthen structural strength through the thickness that increases first connecting seat and second connecting seat to improve life. But turn to rocking arm during operation is that the arm body and second connecting seat swing around the axis of first connecting hole, and it can know through the atress analysis, and the junction of arm body and first connecting seat is the great position of atress, turns to the rocking arm and often can break off at the junction of arm body and first connecting seat, and the life of turning to the rocking arm still remains to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that prior art exists, provide one kind and turned to the rocking arm, the technical problem of solution is how to improve the life who turns to the rocking arm.

The purpose of the utility model can be realized by the following technical proposal:

a steering rocker arm comprises an arm body, a first connecting seat and a second connecting seat, wherein the first connecting seat is integrally connected to the upper end of the arm body, the second connecting seat is integrally connected to the lower end of the arm body, a first connecting hole is formed in the first connecting seat, a second connecting hole is formed in the second connecting seat, the steering rocker arm is characterized in that the arm body is bent into a V shape, the arm body comprises an upper connecting section and a lower connecting section, a reinforcing part protruding out of the left end face of the first connecting seat is arranged at the position, connected with the first connecting seat, of the upper end of the upper connecting section, the reinforcing part comprises a convex edge, a front convex strip and a rear convex strip, the convex edge is arc-shaped and arranged along the lower edge of the left end face of the first connecting seat, the front convex strip and the rear convex strip are respectively arranged on the front side and the rear side of the convex strip, the front end of the convex strip is connected with the front convex strip, and the rear end of the convex strip is connected with the rear convex strip, the left side portion of preceding sand grip and the left side portion of back sand grip all bulge in the left surface of bead, and the left surface of preceding sand grip and the left surface of back sand grip all flushes with the left surface of last linkage segment.

Bead protrusion in the left end face of first connecting seat to be the arc setting along the lower edge of first connecting seat left end face, played the effect of strengthening rib, can improve the structural strength of arm body and last connecting seat junction, thereby improve the life who turns to the rocking arm. Simultaneously the front end and the preceding bead of bead are connected, the rear end and the back sand grip of bead are connected, and the left part of preceding sand grip and the left side of back sand grip all bulge in the left surface of bead to the left, and the left surface of preceding bead and the left surface of back sand grip all flush with the left surface of last linkage segment, make the both ends of bead link to each other with last linkage segment through preceding sand grip and back sand grip are stable, make the structure of bead department more stable, thereby be favorable to guaranteeing to turn to the life of rocking arm. In addition, the bending strength of the arm body can be improved due to the bent arm body, and the service life of the steering rocker arm can be guaranteed. Therefore, the steering rocker arm can improve the structural strength of the connection part of the arm body and the first connecting seat, and the service life is prolonged.

In the above-mentioned steering rocker arm, there is an obliquely arranged transition surface between the left side surface of the lug and the left side surface of the upper connecting section. The transition surface that the slope set up is favorable to alleviating the concentrated condition of internal stress, is favorable to making the stable in structure of arm body and last connecting seat department of linking to each other.

In the above steering rocker arm, the upper connecting section is inclined to the left with respect to the axis of the first connecting hole, and the right end of the first connecting seat protrudes out of the right side surface of the upper connecting section. The right end of the first connecting seat faces the steering gear during installation, so that interference and friction wear between the upper connecting section and the steering gear can be avoided, the steering rocker arm works stably, and the service life of the steering rocker arm is guaranteed.

In the above steering rocker arm, the upper connecting section and the lower connecting section are in fillet transition. Thus, the bending strength of the arm body is improved, and the service life of the steering rocker arm is ensured.

In the above steering rocker arm, the arm body has an elliptical cross section. Therefore, the structural strength of the arm body can be improved, and the service life of the steering rocker arm is prolonged.

In the above steering rocker arm, the first connecting hole and the second connecting hole are both tapered. Therefore, the connection stability between the steering rocker arm and the steering gear and between the steering rocker arm and the steering straight pull rod can be improved, and the service life of the steering rocker arm is favorably ensured.

In the above steering rocker arm, a marking line is provided on a left end surface of the first connecting seat. The marking line has a marking function and is convenient for the steering rocker arm to be connected with the steering gear.

Compared with the prior art, the utility model has the advantages of it is following:

set up bead, preceding sand grip and back sand grip, improve the structural strength of the arm body and the continuous department of last connecting seat, improved the life of steering rocker arm. Set up the transition face, the transversal ellipse of personally submitting of arm body goes up the linkage segment and passes through for the fillet between the linkage segment down, and first connecting hole and second connecting hole all are the toper, all are favorable to guaranteeing to turn to the life of rocking arm.

Drawings

FIG. 1 is a front elevational view of the present pitman arm;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a left side view of the present pitman arm.

In the figure, 1, an arm body; 1a, an upper connecting section; 1b, a lower connecting section; 1c, a transition connecting section; 2. a first connecting seat; 2a, a first connection hole; 2b, marking lines; 3. a second connecting seat; 3a, a second connecting hole; 4. a reinforcing portion; 4a, ribs; 4b, front convex strips; 4c, rear convex strips; 5. a transition surface.

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.

Example one

As shown in fig. 1 to 3, a steering rocker arm includes an arm body 1, a first connecting seat 2 and a second connecting seat 3, the first connecting seat 2 is integrally connected to the upper end of the arm body 1, and the second connecting seat 3 is integrally connected to the lower end of the arm body 1. First connecting hole 2a has been seted up on first connecting seat 2, has seted up second connecting hole 3a on the second connecting seat 3, and first connecting hole 2a and second connecting hole 3a all are the toper, and first connecting hole 2a is the splined hole, and second connecting hole 3a is the unthreaded hole. The cross section of the arm body 1 is elliptic, and the upper end of the arm body 1 is thicker than the small end. The arm body 1 is bent into a V shape, the arm body 1 comprises an upper connecting section 1a and a lower connecting section 1b, the upper connecting section 1a and the lower connecting section 1b are in fillet transition, and the arm body 1 further comprises a transition connecting section 1c which is integrally connected between the lower connecting section 1b and the second connecting seat 3. Go up the up end of linkage segment 1a and the downside body coupling of first connecting seat 2, the lower terminal surface of transition linkage segment 1c links to each other with the side body coupling of going up of second connecting seat 3. The upper connecting section 1a is arranged to be inclined to the left relative to the axis of the first connecting hole 2a, the lower connecting section 1b is arranged to be inclined to the left relative to the axis of the second connecting hole 3a, and the transition connecting section 1c is arranged to be perpendicular to the axis of the second connecting hole 3 a. Be provided with identification line 2b on the left end face of first connecting seat 2, the right-hand member protrusion of first connecting seat 2 is in the right flank of last linkage segment 1a, the left end protrusion in the left flank of transitional coupling section 1c of second connecting seat 3, the right-hand member protrusion in the right flank of transitional coupling section 1c of second connecting seat 3.

The upper end of the upper connecting section 1a is provided with a reinforcing part 4 protruding out of the left end surface of the first connecting seat 2 at the connecting part of the arm body 1 and the first connecting seat 2. The reinforcing part 4 comprises a rib 4a, a front convex strip 4b and a rear convex strip 4c, the rib 4a is arc-shaped and is arranged along the lower edge of the left end face of the first connecting seat 2, and the upper side face of the rib 4a is connected with the left end face of the first connecting seat 2. The front rib 4b and the rear rib 4c are respectively located on the front side and the rear side of the rib 4a, the front end of the rib 4a is connected to the front rib 4b, and the rear end of the rib 4a is connected to the rear rib 4 c. The upper side of the front convex strip 4b is connected with the left end face of the first connecting seat 2, and the upper side of the rear convex strip 4c is connected with the left end face of the first connecting seat 2. Preceding sand grip 4b and back sand grip 4c symmetry set up, and the left part of preceding sand grip 4b and the left part of back sand grip 4c all bulge in the left surface of bead 4a to the left, and the left surface of preceding sand grip 4b and the left surface of back sand grip 4c all level with the left surface of last linkage segment 1 a. The left side surface of the rib 4a is parallel to the left end surface of the first connecting seat 2, and the upper side surface of the rib 4a is perpendicular to the left end surface of the first connecting seat 2. The left side of the rib 4a and the left side of the upper connecting section 1a have a transition surface 5 arranged obliquely.

Bead 4a protrusion in the left end face of first connecting seat 2 to be the arc setting along the lower edge of 2 left end faces of first connecting seat, played the effect of strengthening rib, can improved the structural strength of arm body 1 with last connecting seat junction, thereby improve the life who turns to the rocking arm. Simultaneously the front end of bead 4a is connected with preceding sand grip 4b, the rear end and the back sand grip 4c of bead 4a are connected, and the left part of preceding sand grip 4b and the left part of back sand grip 4c all bulge in the left surface of bead 4a to the left, and the left surface of preceding sand grip 4b and the left surface of back sand grip 4c all level with the left surface of last linkage segment 1a, make the both ends of bead 4a link to each other with last linkage segment 1a through preceding sand grip 4b and back sand grip 4c are stable, make the structure of bead 4a department more stable, thereby be favorable to guaranteeing to turn to the life of rocking arm. In addition, the bending shape of the arm body 1 can also improve the bending strength of the arm body 1, which is beneficial to ensuring the service life of the steering rocker arm. Therefore, the steering rocker arm can improve the structural strength of the joint of the arm body 1 and the first connecting seat 2, and the service life is prolonged.

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. A steering rocker arm comprises an arm body (1), a first connecting seat (2) and a second connecting seat (3), wherein the first connecting seat (2) is integrally connected to the upper end of the arm body (1), the second connecting seat (3) is integrally connected to the lower end of the arm body (1), a first connecting hole (2a) is formed in the first connecting seat (2), a second connecting hole (3a) is formed in the second connecting seat (3), the steering rocker arm is characterized in that the arm body (1) is bent into a 'dog' shape, the arm body (1) comprises an upper connecting section (1a) and a lower connecting section (1b), a reinforcing part (4) protruding out of the left end face of the first connecting seat (2) is arranged at the joint of the arm body (1) and the first connecting seat (2) on the upper end of the upper connecting section (1a), the reinforcing part (4) comprises a convex rib (4a), a front convex strip (4b) and a rear convex strip (4c), bead (4a) are the arc and set up along the lower edge of first connecting block (2) left end face, preceding sand grip (4b) and back sand grip (4c) are located the front side and the rear side of bead (4a) respectively, the front end of bead (4a) links to each other with preceding sand grip (4b), the rear end of bead (4a) links to each other with back sand grip (4c), the left side of preceding sand grip (4b) and the left side of back sand grip (4c) all bulge in the left surface of bead (4a), and the left surface of preceding sand grip (4b) and the left surface of back sand grip (4c) all flush with the left surface of last linkage segment (1 a).

2. A steering rocker arm according to claim 1, characterised in that there is an obliquely arranged transition surface (5) between the left side of the rib (4a) and the left side of the upper connecting section (1 a).

3. The steering rocker arm according to claim 1 or 2, characterized in that the upper connecting section (1a) is disposed obliquely to the left with respect to the axis of the first connecting hole (2a), and the right end of the first connecting seat (2) protrudes from the right side of the upper connecting section (1 a).

4. A steering rocker arm according to claim 1 or 2, characterised in that the upper connecting section (1a) and the lower connecting section (1b) have a rounded transition therebetween.

5. Steering rocker arm according to claim 1 or 2, characterised in that the arm body (1) is oval in cross-section.

6. Steering rocker arm according to claim 1 or 2, characterised in that the first (2a) and second (3a) connection holes are both conical.

7. The steering rocker arm according to claim 1 or 2, characterized in that an identification line (2b) is provided on the left end face of the first connecting seat (2).