Automobile lower swing arm assembly

Abstract

The utility model relates to the field of automobile suspension, and discloses an automobile lower swing arm assembly which comprises a swing arm body, a mounting sleeve is fixedly connected to the right side of the swing arm body, a threaded groove is formed in the mounting sleeve, a threaded extrusion block is in threaded connection with the interior of the threaded groove, and an extrusion slope is arranged on the inner side of the threaded extrusion block. A round-corner sliding groove is formed in the front face of the mounting sleeve, a sliding column is slidably connected into the round-corner sliding groove, an elastic assembly is in contact with the inner side of the extrusion inclined face, and a front lining is in contact with the inner side of the elastic assembly. According to the swing arm, the fixed circular ring is tightened along the extrusion inclined plane through the threaded extrusion block, the fixed circular ring and the rotating sliding column, the front lining is tightly fixed, the contact surface is large, the connecting position is stable, and therefore the front lining can be conveniently detached without tools, daily maintenance is facilitated, and meanwhile damage to the swing arm body caused by detachment is reduced.

Description

Technical Field

[0001] The utility model relates to the field of automobile suspension, in particular to an automobile lower swing arm assembly. Background Art

[0002] The automobile suspension system is a complex and critical component that connects the vehicle body and wheels, supports the vehicle body, improves the ride quality, and ensures the vehicle runs smoothly. The automobile lower arm assembly is an important component of the automobile suspension system. It plays a guiding and supporting role in the suspension system. It is a key component that connects the vehicle body (or subframe) and the wheel system. The strength and durability of its structure directly affect the safety of the entire vehicle.

[0003] The current automobile lower control arm assembly is usually composed of a lower control arm, a ball pin and a bushing. The existing bushing and lower control arm are usually fixed on the automobile lower control arm by an interference fit with the bushing mounting hole. When the bushing is worn, it needs to be replaced. At this time, it is troublesome to remove the bushing. It is more likely that too much force will be applied during the disassembly process, causing the lower control arm assembly to deform, making disassembly more difficult. On the other hand, in order to reduce displacement and reduce vehicle weight, current automobiles usually open holes in the lower control arm and reduce material thickness to reduce weight. However, the strength of the lower control arm assembly will be reduced after the steel thickness is reduced and the holes are opened. Therefore, an automobile lower control arm assembly is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a lower control arm assembly for an automobile, aiming to improve the problems in the prior art such as the inconvenience of replacing the bushing and the loss of certain structural strength of the lower control arm assembly after weight reduction.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lower swing arm assembly of an automobile, including a swing arm body, a mounting sleeve fixedly connected to the right side of the swing arm body, a threaded groove is provided inside the mounting sleeve, a threaded extrusion block is threadedly connected inside the threaded groove, an extrusion slope is provided on the inner side of the threaded extrusion block, a rounded slide groove is provided on the front side of the mounting sleeve, a sliding column is slidably connected inside the rounded slide groove, the inner side of the extrusion slope contacts with an elastic component, and the inner side of the elastic component contacts with a front bushing.

[0006] As a further description of the above technical solution:

[0007] A side skirt is fixedly connected to the bottom of the swing arm body, a ball pin mounting hole is opened on the left side of the swing arm body, a concave rib is arranged inside the swing arm body, a weight-reducing hole is arranged inside the concave rib, and a weight-reducing circular sleeve is fixedly connected to the inner side of the concave rib via a reinforcing rib.

[0008] As a further description of the above technical solution:

[0009] The outer periphery of the sliding column is slidably connected to the inside of the threaded extrusion block.

[0010] As a further description of the above technical solution:

[0011] The elastic component comprises a fixed circular ring, the outer side of the fixed circular ring contacts the inner side of the extrusion inclined surface, a deformation notch is provided on the right side of the fixed circular ring, and the inner side of the fixed circular ring contacts the outer side of the front bushing.

[0012] As a further description of the above technical solution:

[0013] Symmetrical inclined surfaces are arranged on the front and rear sides of the outer circumference of the fixed ring.

[0014] As a further description of the above technical solution:

[0015] The concave ribs are provided in two groups, which are respectively arranged on the left and right sides of the swing arm body, and the left side of the concave rib on the left side is fixedly connected to the right side of the ball pin mounting hole.

[0016] As a further description of the above technical solution:

[0017] The outer side of the concave rib is fixedly connected to the inner side of the side skirt through the reinforcing rib, and the outer side of the weight-reducing circular sleeve is fixedly connected to the inner side of the side skirt through the reinforcing rib.

[0018] As a further description of the above technical solution:

[0019] The top end of the outer periphery of the weight-reducing circular sleeve is fixedly connected to the inner wall of the top end of the swing arm body.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the threaded extrusion block and the fixed ring are tightened along the extrusion inclined surface by rotating the sliding column, so that the front bushing is tightly fixed, the contact surface is large, and the connection is stable, so that the front bushing can be easily removed without using tools, which is convenient for daily maintenance and reduces the damage to the swing arm body caused by disassembly.

[0022] 2. In the utility model, by providing concave ribs and weight-reducing circular sleeves, the structural strength of the swing arm body after the steel material is thinned is increased. At the same time, reinforcing ribs are added at the gaps between the concave ribs, weight-reducing circular sleeves and the side skirts, thereby improving the structural strength of the swing arm body after the weight-reducing holes are opened, thereby ensuring the strength of the lower swing arm assembly after lightweighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an overall front view of a lower swing arm assembly of an automobile proposed by the utility model;

[0024] Figure 2 It is a right side cross-sectional schematic diagram of a mounting sleeve of a lower swing arm assembly of an automobile proposed by the utility model;

[0025] Figure 3 The utility model is a schematic diagram of the bottom surface of a swing arm body of a lower swing arm assembly of an automobile.

[0026] Legend:

[0027] 1. Swing arm body; 2. Mounting sleeve; 3. Threaded groove; 4. Threaded extrusion block; 5. Extrusion slope; 6. Fixed ring; 7. Deformation notch; 8. Rounded slide groove; 9. Sliding column; 10. Front bushing; 11. Side skirt; 12. Ball pin mounting hole; 13. Weight-reducing sleeve; 14. Concave rib; 15. Weight-reducing hole; 16. Reinforcing rib. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-Figure 2The utility model provides an embodiment: a lower swing arm assembly of an automobile, comprising a swing arm body 1, the swing arm body 1 is L-shaped, a mounting sleeve 2 is fixedly connected at the right turning point of the swing arm body 1, a thread groove 3 is provided inside the mounting sleeve 2, two groups of thread grooves 3 are arranged, symmetrically arranged on the front and rear sides of the inner wall of the side of the mounting sleeve 2, and the spiral directions of the thread groove 3 are opposite, a threaded extrusion block 4 is threadedly connected inside the thread groove 3, and the threaded extrusion block 4 is rotated, and the threaded extrusion block 4 can slide back and forth along the inner wall of the thread groove 3, and an extrusion inclined surface 5 is arranged on the inner side of the threaded extrusion block 4, a rounded slide groove 8 is provided on the front side of the mounting sleeve 2, and five groups of rounded slide grooves 8 are arranged, which are evenly distributed in an annular manner on the front side of the mounting sleeve 2, a sliding column 9 is slidably connected inside the rounded slide groove 8, and the rounded slide groove 8 limits the sliding column 9 to rotate only along the center of the mounting sleeve 2, and the outer periphery of the sliding column 9 is slidably connected to the inside of the threaded extrusion block 4, and the sliding column 9 makes the front and rear two The threaded extrusion blocks 4 can rotate in the same direction. At this time, the front and rear threaded extrusion blocks 4 will move toward or oppositely in the front and rear thread grooves 3. The inner side of the extrusion slope 5 of the threaded extrusion block 4 contacts with an elastic component. The elastic component includes a fixed ring 6. The front and rear sides of the outer circumference of the fixed ring 6 are provided with symmetrical slopes. The outer side of the fixed ring 6 contacts with the inner side of the extrusion slope 5. The outer side of the fixed ring 6 is provided with a slope that cooperates with the extrusion slope 5 inside the threaded extrusion block 4, so that when the threaded extrusion blocks 4 on the front and rear sides are close to each other, the fixed ring 6 will be squeezed, so that the fixed ring 6 is tightened along the slope. A deformation notch 7 is provided on the right side of the fixed ring 6 to squeeze the fixed ring 6. The gap of the deformation notch 7 on the left side of the fixed ring 6 is reduced, and the interior of the fixed ring 6 is squeezed inward as a whole. The inner side of the elastic component contacts with a front bushing 10. The inner side of the fixed ring 6 contacts with the outer side of the front bushing 10. When the fixed ring 6 is tightened, the front bushing 10 will be firmly clamped.

[0030] Reference Figure 1 and Figure 3The bottom of the swing arm body 1 is fixedly connected with a side skirt 11 for increasing the structural strength. A ball pin mounting hole 12 for conveniently installing a ball pin is opened on the left side of the swing arm body 1. A concave rib 14 is arranged inside the swing arm body 1. The concave rib 14 is in a rounded rectangular shape and sinks downward from the inside of the swing arm body 1, thereby increasing the structural strength of the lower swing arm when the thickness of the steel material is reduced. Two groups of concave ribs 14 are arranged on the left and right sides of the swing arm body 1 respectively. The left side of the left concave rib 14 is fixedly connected to the right side of the ball pin mounting hole 12. A weight reduction hole 15 is arranged inside the concave rib 14 to reduce the weight of the concave rib 14. The inner side of the concave rib 14 is fixedly connected with a weight-reducing circular sleeve 13 through a reinforcing rib 16. The inside of the weight-reducing circular sleeve 13 is provided with a circular hole for reducing the overall weight of the lower swing arm. At the same time, the weight-reducing circular sleeve 13 can improve the overall strength. The top of the outer periphery of the weight-reducing circular sleeve 13 is fixedly connected to the inner wall of the top of the swing arm body 1. The outer side of the concave rib 14 is fixedly connected to the inner side of the side skirt 11 through the reinforcing rib 16. The outer side of the weight-reducing circular sleeve 13 is fixedly connected to the inner side of the side skirt 11 through the reinforcing rib 16. There are multiple groups of reinforcing ribs 16, which are evenly distributed at the bottom of the swing arm body 1, so as to improve the strength of the structure with the weight-reducing holes 15.

[0031] Working principle: When you want to conveniently fix the front bushing 10, slide the front bushing 10 into the installation sleeve 2 first. At this time, the outer periphery of the front bushing 10 is inside the fixed ring 6, and then rotate the sliding column 9. The sliding column 9 drives the front and rear two groups of threaded extrusion blocks 4 to rotate, and the two groups of threaded extrusion blocks 4 move inward, driving the extrusion ramp 5 to squeeze the fixed ring 6, so that the fixed ring 6 is tightened along the ramp, the deformation notch 7 gap is reduced, and the fixed ring 6 is tightened inward as a whole, and the front bushing 10 is tightly clamped, so that the front bushing 10 is conveniently fixed, and the contact surface is large, and the fixation is more stable. When the weight of the swing arm body 1 is reduced, the steel material used for the swing arm body 1 is thinner. The structural strength of the swing arm body 1 is improved by providing the concave ribs 14 and the weight-reducing sleeves 13. At the same time, weight-reducing holes 15 are opened inside the concave ribs 14 to further reduce the weight. At the same time, reinforcing ribs 16 are added to the gaps between the concave ribs 14, the weight-reducing sleeves 13 and the side skirts 11, thereby ensuring the structural strength of the swing arm body 1 and reducing the weight of the swing arm body 1.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lower swing arm assembly for an automobile, comprising a swing arm body (1), characterized in that: The right side of the swing arm body (1) is fixedly connected with a mounting sleeve (2), a thread groove (3) is provided inside the mounting sleeve (2), a threaded extrusion block (4) is threadedly connected inside the thread groove (3), an extrusion bevel (5) is arranged inside the threaded extrusion block (4), a rounded sliding groove (8) is provided on the front side of the mounting sleeve (2), a sliding column (9) is slidably connected inside the rounded sliding groove (8), the inner side of the extrusion bevel (5) contacts with an elastic component, and the inner side of the elastic component contacts with a front bushing (10).

2. The automobile lower arm assembly according to claim 1, characterized in that: The bottom of the swing arm body (1) is fixedly connected to a side skirt (11), the left side of the swing arm body (1) is provided with a ball pin mounting hole (12), a concave rib (14) is arranged inside the swing arm body (1), a weight-reducing hole (15) is arranged inside the concave rib (14), and a weight-reducing circular sleeve (13) is fixedly connected to the inner side of the concave rib (14) via a reinforcing rib (16).

3. The automobile lower arm assembly according to claim 1, characterized in that: The outer periphery of the sliding column (9) is slidably connected to the interior of the threaded extrusion block (4).

4. The automobile lower arm assembly according to claim 1, characterized in that: The elastic component comprises a fixed circular ring (6), the outer side of the fixed circular ring (6) contacts the inner side of the extrusion inclined surface (5), a deformation notch (7) is provided on the right side of the fixed circular ring (6), and the inner side of the fixed circular ring (6) contacts the outer side of the front bushing (10).

5. The automobile lower arm assembly according to claim 4, characterized in that: Symmetrical inclined surfaces are arranged on the front and rear sides of the outer circumference of the fixed circular ring (6).

6. The automobile lower arm assembly according to claim 2, characterized in that: The concave ribs (14) are provided in two groups, which are respectively provided on the left and right sides of the swing arm body (1), and the left side of the concave rib (14) on the left side is fixedly connected to the right side of the ball pin mounting hole (12).

7. The automobile lower arm assembly according to claim 2, characterized in that: The outer side of the concave rib (14) is fixedly connected to the inner side of the side skirt (11) via the reinforcing rib (16), and the outer side of the weight-reducing circular sleeve (13) is fixedly connected to the inner side of the side skirt (11) via the reinforcing rib (16).

8. The automobile lower arm assembly according to claim 2, characterized in that: The top end of the outer periphery of the weight-reducing circular sleeve (13) is fixedly connected to the inner wall of the top end of the swing arm body (1).

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