CN211764762U - Lower swing arm of automobile - Google Patents

Abstract

A lower swing arm of an automobile can elastically connect an automobile body and the automobile together, so as to relieve the impact caused by ground potholes during the running of the automobile and improve the riding comfort, and comprises a swing arm main body and a shock absorber mounting seat, wherein the swing arm main body is h-shaped, the edge of the swing arm main body is bent backwards by ninety degrees to form a reinforced side wall, and the reinforced side wall can enhance the bending resistance and the tensile strength of the lower swing arm; the edge of the lower swing arm of the automobile provided by the utility model is bent backward by ninety degrees to form a reinforced side wall, so that the bending resistance and tensile strength of the lower swing arm can be enhanced, and the lower swing arm has better capability of bearing load impact; the swing arm main body is positioned on the installation hole part of the swing arm ball head and is bent, the bending angle is 25-30 degrees, and the automobile swing arm can overcome part of pulling force generated by the swing arm ball head; the swing arm main part, strengthen lateral wall, back shroud and surround and form the cavity structure, have alleviateed the holistic weight of lower swing arm and have also improved the intensity of swing arm down.

Description

Lower swing arm of automobile

Technical Field

The utility model relates to an automobile parts technical field especially relates to a swing arm under car for connecting frame.

Background

The swing arm is the important component part in chassis suspension position, and it links together automobile body and car elasticity, reaches to slow down the impact that receives the reason of ground pothole in the car is gone, guarantees the travelling comfort of taking, because the style of car is more and more, the type of the frame that corresponds is also more and more, in order to adapt to the frame and reach the better shock attenuation effect of vehicle operation process, needs the different swing arms of design, in addition, the automobile swing arm among the prior art damages easily, takes place the fracture.

Disclosure of Invention

An object of the utility model is to provide a swing arm under car to solve the problem that proposes among the above-mentioned background art.

The technical scheme adopted by the utility model is that the automobile lower swing arm can elastically connect the automobile body and the automobile together to reduce the impact caused by the ground pothole during the running of the automobile and improve the riding comfort, the automobile lower swing arm comprises a swing arm main body and a shock absorber mounting seat, the swing arm main body is h-shaped, the edge of the swing arm main body is bent backwards by ninety degrees to form a reinforced side wall, the reinforced side wall can enhance the bending resistance and tensile strength of the lower swing arm and has better load impact bearing capability, the swing arm is not easy to break when the automobile lower swing arm is impacted by load, the upper end of the swing arm main body is provided with a swing arm ball head mounting hole, a swing arm ball head can be mounted in the swing arm ball head mounting hole, the swing arm ball head is connected with an automobile wheel hub knuckle, and in the mounting process, the swing arm ball head is required to be ensured to be in, guarantee the bulb and press the power of taking off, make the swing arm bulb can bear the car speed of jolting, the left and right sides position of swing arm main part lower extreme all is equipped with the bush connecting portion, the bush connecting portion of the left and right sides is the same with axle and size, be equipped with the bush mounting hole in the bush connecting portion, the bush mounting hole is used for installing the bush, the bush is used for connecting the axle frame, through the radial rigidity and the axial rigidity that increase the bush during installation, can increase the shock attenuation toughness of car swing arm, make the automobile body steady not jolt, the bush can be raw and other materials natural rubber through bonderizing, the viscose.

Furthermore, the shock absorber mounting seat is U-shaped, two side edges of the shock absorber mounting seat are parallel, a shock absorption mounting hole is formed in the position, located at the bottom of the U-shaped bottom, of the shock absorber mounting seat, arc-shaped grooves are formed in the rear ends of the two side edges of the shock absorber mounting seat, the rear end of the shock absorber mounting seat is attached to and welded with the swing arm main body, and the shock absorber can be mounted on the shock absorber mounting seat through the shock absorption mounting hole and can fully play the shock absorption effect of the shock absorber.

Further, the swing arm bulb mounting hole is sunken forward and is formed the mounting hole and strengthen the wall, and the intensity of swing arm bulb mounting hole position can be strengthened to the mounting hole and strengthen the wall, and can let the bulb installation back more firm, difficult not hard up and drop.

Furthermore, the swing arm main body is positioned on the installation hole of the swing arm ball head, the bending angle is 25-30 degrees, and the automobile swing arm can overcome part of pulling force generated by the swing arm ball head.

Furthermore, the swing arm main body is arranged at the position of the swing arm ball head mounting hole and is recessed backwards to form a reinforcing part, so that the strength of the bending part of the swing arm ball head mounting hole can be enhanced, and the swing arm ball head mounting hole is not easy to break.

Furthermore, after the swing arm ball head is fixed in a swing arm ball head mounting hole in the swing arm main body, a shaft check ring is arranged on the ball head, so that the ball head can be prevented from falling off.

Further, swing arm main part rear side position is equipped with and strengthens the back shroud that the lateral wall closely laminated, the swing arm main part, strengthen the lateral wall, the back shroud surrounds vacuole formation structure, the holistic weight of swing arm has also improved the intensity of swing arm down under having alleviateed, be equipped with front end and swing arm main part laminating between swing arm main part and the back shroud, the connecting piece of rear end and back shroud laminating, the connecting piece passes through the welding with the swing arm main part and is in the same place, the back shroud is equipped with four welding seams with the connecting piece contact position, through pouring into appropriate amount of solder flux in toward the welding seam, can accomplish the welding of back shroud and connecting piece.

Further, in order to avoid the interference between the rear cover plate and the swing arm ball head installed in the swing arm ball head installation hole, the upper end of the rear cover plate is provided with an arc edge, and the length of the reinforcing side wall near the position of the swing arm ball head installation hole is shorter than those of the reinforcing side walls at other positions of the swing arm main body.

Further, the swing arm ball mounting hole position that lies in being close to the upper end in the swing arm main part and the lower extreme are close to two bush connecting portion positions department and are equipped with three first connecting hole, and is corresponding, is equipped with three corresponding second connecting hole on the back shroud, through the bolt of packing into in first connecting hole and second connecting hole, can realize that the secondary between swing arm main part and the back shroud is fixed.

Further, swing arm main part, connecting piece, back shroud, bumper shock absorber mount pad adopt respectively the shaping to weld the form together again, relative and mould integrated into one piece's processing mode, can reduce manufacturing cost, and the swing arm manufacturing personnel should be according to following order when the swing arm under the welding: 1. and welding the connecting piece to a designated position on the swing arm main body. 2. Through packing into first connecting hole and second connecting hole with the bolt, accomplish the fixed between back shroud and the swing arm main part. 3. And welding the rear cover plate and the connecting piece together through a welding seam. 4. And welding the shock absorber mounting seat to the designated position of the swing arm main body.

Furthermore, the swing arm main body is welded with an expansion block, the expansion block is tightly attached to the swing arm main body and the contact position of the reinforcing side wall, and an expansion hole is formed in the expansion block and can be used for connecting other automobile parts and performing expansion on functions of the lower swing arm.

Furthermore, the surface of the swing arm main body is provided with an electrophoresis layer with the thickness of 20-30 microns, so that the load impact resistance of the automobile swing arm can be improved, and the load impact of 40KG can be borne.

To sum up, the beneficial effects of the utility model are that:

the edge of the lower swing arm of the automobile provided by the utility model is bent backward by ninety degrees to form a reinforced side wall, so that the bending resistance and tensile strength of the lower swing arm can be enhanced, and the lower swing arm has better capability of bearing load impact, therefore, the swing arm is not easy to break when jolting for a long time or being impacted by load; the swing arm main body is positioned on the installation hole part of the swing arm ball head and is bent, the bending angle is 25-30 degrees, and the automobile swing arm can overcome part of pulling force generated by the swing arm ball head; the swing arm main body, the reinforced side wall and the rear cover plate surround to form a cavity structure, so that the overall weight of the lower swing arm is reduced, and the strength of the lower swing arm is improved; the electrophoresis layer on the surface of the swing arm main body can increase the load impact bearing capacity of the swing arm.

Drawings

Fig. 1 is a front view of the swing arm under the car of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is an exploded view of the swing arm under the car of the present invention.

Detailed Description

Embodiments of the invention will be described in further detail with reference to the drawings, it being understood that the examples are illustrative only and should not be taken as limiting the invention, and that all of the features disclosed in the examples or all of the steps in any method or process disclosed herein can be combined in any way, except for mutually exclusive features and/or steps.

The invention will be described in detail with reference to fig. 1-3, wherein for ease of description, the following orientations are now specified: the up-down, left-right, front-back direction described below is consistent with the front-back, left-right, top-down direction of the view direction in fig. 1, fig. 1 is the front view of the device of the present invention, and the direction shown in fig. 1 is consistent with the front-back, left-right, top-down direction of the device of the present invention.

The embodiment provides a lower swing arm of an automobile, which can elastically connect an automobile body and the automobile together to relieve the impact caused by the ground pothole during the running of the automobile and improve the riding comfort, and referring to the attached drawings 1-3, the lower swing arm comprises a swing arm main body 10 and a shock absorber mounting seat 11, the swing arm main body 10 is h-shaped, the edge of the swing arm main body 10 is bent backwards by ninety degrees to form a reinforced side wall 18, the reinforced side wall 18 can enhance the bending resistance and tensile strength of the lower swing arm and has better load impact bearing capability, the lower swing arm is not easy to break when being impacted by load, a swing arm ball mounting hole 12 is arranged at the upper end of the swing arm main body 10, a swing arm ball can be mounted in the swing arm ball mounting hole 12, an automobile hub of the swing arm is connected with a steering knuckle, and in the mounting process, the swing arm ball and the swing arm ball mounting hole 12, guarantee the bulb and press the power of taking off, make the swing arm bulb can bear the car speed of jolting, the left and right sides position of swing arm main part 10 lower extreme all is equipped with bush connecting portion 14, the bush connecting portion 14 of the left and right sides is the same with axle and size, be equipped with bush mounting hole 15 in the bush connecting portion 14, bush mounting hole 15 is used for installing the bush, the bush is used for connecting the axle frame, radial rigidity and axial rigidity through increasing the bush during installation, can increase the shock attenuation toughness of car swing arm, make the automobile body steady not have the jolt, the bush can be raw and other materials natural rubber through bonderizing, the viscose after leaving the exercise, vulcani.

Preferably, the shock absorber mounting seat 11 is "U" type and both sides limit is parallel, and the position that lies in "U" type bottom on the shock absorber mounting seat 11 is equipped with shock attenuation mounting hole 16, is equipped with arc wall 17 on the both sides limit rear end of shock absorber mounting seat 11, and the rear end of shock absorber mounting seat 11 and swing arm main part 10 laminating and welding are in the same place, can install the shock absorber and fully exert its absorbing efficiency on shock absorber mounting seat 11 through shock attenuation mounting hole 16.

Preferably, swing arm bulb mounting hole 12 is sunken forward and is formed mounting hole reinforcing wall 13, and the intensity in swing arm bulb mounting hole 12 position can be strengthened to mounting hole reinforcing wall 13, and can let the bulb installation back more firm, difficult not hard up and drop.

Preferably, the part of the swing arm main body 10, which is positioned in the swing arm ball head mounting hole 12, is bent, and the bending angle is 25-30 degrees, so that the swing arm of the automobile can overcome a part of pulling force generated by the swing arm ball head.

Preferably, the swing arm main body 10 is recessed backward at the position of the swing arm ball mounting hole 12 to form a reinforcing portion 20, so that the strength of the bent portion of the swing arm ball mounting hole 12 can be enhanced, and the swing arm ball mounting hole is not easy to break.

Preferably, after the swing arm ball head is fixed in the swing arm ball head mounting hole 12 in the swing arm main body 10, a shaft check ring is arranged on the ball head, so that the ball head can be prevented from falling off.

Swing arm main part 10 rear side position is equipped with and strengthens back shroud 19 that lateral wall 18 closely laminated, swing arm main part 10, strengthen lateral wall 18, back shroud 19 surrounds the vacuole formation structure, the holistic weight of swing arm has also improved the intensity of swing arm down under having alleviateed, be equipped with front end and the laminating of swing arm main part 10 between swing arm main part 10 and the back shroud 19, the connecting piece 21 of rear end and the laminating of back shroud 19, connecting piece 21 is in the same place through the welding with swing arm main part 10, back shroud 19 is equipped with four welding seams 22 with connecting piece 21 contact position, through pouring into appropriate amount of solder flux into in the welding seam 22, can accomplish the welding of back shroud 19 and connecting piece 21.

Preferably, in order to avoid the interference between the rear cover plate 19 and the swing arm ball mounted in the swing arm ball mounting hole 12, the upper end of the rear cover plate 19 is provided with a circular arc edge 23, and the length of the reinforcing side wall 18 near the swing arm ball mounting hole 12 is shorter than that of the reinforcing side wall 18 at other positions of the swing arm main body 10.

Preferably, the swing arm main body 10 is provided with three first connecting holes 24 at positions close to the swing arm ball mounting hole 12 of the upper end and at positions close to the two bushing connecting portions 14 of the lower end, and correspondingly, the rear cover plate 19 is provided with three corresponding second connecting holes 25, and the secondary fixation between the swing arm main body 10 and the rear cover plate 19 can be realized by installing bolts in the first connecting holes 24 and the second connecting holes 25.

Preferably, swing arm main part 10, connecting piece 21, back shroud 19, bumper shock absorber mount pad 11 adopt the form of shaping rewelding respectively together, relatively with mould integrated into one piece's processing method, can reduce manufacturing cost, swing arm manufacturing personnel when welding down the swing arm, should be according to following order: 1. the connecting member 21 is welded to the swing arm main body 10 at a designated position. 2. The fixation between the rear cover plate 19 and the swing arm main body 10 is completed by fitting bolts into the first coupling holes 24 and the second coupling holes 25. 3. The rear cover plate 19 and the connecting piece 21 are welded together by means of a weld 22. 4. The damper mount 11 is welded to a designated position of the swing arm main body 10.

Preferably, the swing arm main body 10 is welded with the expansion block 26, the contact position of the expansion block 26 with the swing arm main body 10 and the reinforcing side wall 18 is tightly attached, and the expansion block 26 is provided with an expansion hole 28 and can be used for connecting other automobile parts and performing expansion on the function of the lower swing arm.

Preferably, the surface of the swing arm main body 10 is provided with an electrophoresis layer with a thickness of 20-30 microns, so that the load impact resistance of the automobile swing arm can be improved, and the load impact of 40KG can be borne.

The above description is only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through creative work should be covered within the protection scope of the present invention, and therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (10)

1. An automobile lower swing arm is characterized by comprising a swing arm main body and a shock absorber mounting seat;

the swing arm main body is h-shaped, and the edge of the swing arm main body is bent backwards by ninety degrees to form a reinforced side wall;

swing arm main part upper end is equipped with swing arm bulb mounting hole, can install the swing arm bulb in the swing arm bulb mounting hole, and the left and right sides position of swing arm main part lower extreme all is equipped with the bush connecting portion, and the bush connecting portion of the left and right sides is the same with axle center and size, is equipped with the bush mounting hole in the bush connecting portion, and the bush mounting hole is used for installing the bush.

2. The lower swing arm of claim 1, wherein the shock absorber mounting seat is U-shaped and has two parallel sides, a shock absorbing mounting hole is formed in the bottom of the U-shaped shock absorber mounting seat, arc-shaped grooves are formed in the rear ends of the two sides of the shock absorber mounting seat, and the rear end of the shock absorber mounting seat is attached to and welded to the swing arm main body.

3. The swing arm of claim 1, wherein the swing arm ball mount hole is recessed forward to form a mount hole reinforcement wall, and the mount hole reinforcement wall can reinforce the strength of the swing arm ball mount hole location.

4. The swing arm assembly of claim 1, wherein the swing arm body is partially bent at a 25-30 degree angle from the swing arm ball mounting hole, such that the swing arm assembly can overcome a portion of the pulling force generated by the swing arm ball.

5. The automobile lower swing arm according to claim 4, wherein the swing arm main body is recessed backwards at the position of the swing arm ball head mounting hole to form a reinforcing part, so that the strength of the bending part of the swing arm ball head mounting hole can be enhanced, and the swing arm is not easy to break.

6. The automobile lower swing arm according to claim 1, wherein a rear cover plate closely attached to the reinforcing side wall is arranged at the rear side of the swing arm main body, and the swing arm main body, the reinforcing side wall and the rear cover plate are surrounded to form a cavity structure, so that the overall weight of the lower swing arm can be reduced, and the strength of the lower swing arm can be improved.

7. The lower swing arm of claim 6, wherein a connecting member is arranged between the swing arm main body and the rear cover plate, the front end of the connecting member is attached to the swing arm main body, the rear end of the connecting member is attached to the rear cover plate, the connecting member is connected with the swing arm main body by welding, four welding seams are arranged at the contact position of the rear cover plate and the connecting member, and the welding of the rear cover plate and the connecting member can be completed by injecting a proper amount of welding flux into the welding seams.

8. The swing arm assembly according to claim 1, wherein the upper end of the rear cover plate is provided with a rounded edge.

9. The automobile lower swing arm according to claim 1, characterized in that an expansion block is welded on the swing arm main body, the expansion block is closely attached to the swing arm main body and the contact position of the reinforcing side wall, and an expansion hole is arranged on the expansion block.

10. The swing arm according to claim 1, wherein the swing arm body has an electrophoretic layer with a thickness of 20-30 μm on its surface, and can withstand a load impact of 40 KG.

Images