Automobile lower control arm and automobile

Abstract

The utility model discloses a kind of automobile lower control arm and automobile, belong to automobile technical field.It solves the problem of weak protection ability and heavy weight of automobile lower control arm in prior art.It mainly includes lower control arm body, three interfaces are respectively provided on the lower control arm body, the lower side of the lower control arm body is equipped with a guard plate, a buffer plate is installed between the guard plate and the lower control arm body, a plurality of connecting thread holes are opened in the lower control arm body, a plurality of connecting fixing holes corresponding to the connecting thread hole one to one are opened in the guard plate, the connecting fixing hole passes through the buffer plate, connecting bolt is inserted between the connecting fixing hole and the connecting thread hole, and the guard plate and the buffer plate are fixedly installed on the lower control arm body by connecting bolt.

Description

Technical Field

[0001] This utility model belongs to the field of automotive technology, and more specifically, it relates to a lower control arm for automobiles and an automobile. Background Technology

[0002] The lower control arm is a crucial component of a car's suspension system. Currently, the lower control arm in automobiles suffers from weak protection during driving. When a car travels on rough roads or accidentally drives over potholes or protrusions, the chassis may bottom out, and the protruding control arm may be impacted, sometimes resulting in deformation of the car. Furthermore, current lower control arms are also relatively heavy, contributing to a significant unsprung mass in the vehicle. Summary of the Invention

[0003] The purpose of this invention is to provide a lower control arm for automobiles and an automobile, so as to overcome the problems of weak protection capability and heavy weight of the lower control arm in the prior art.

[0004] This utility model is achieved using the following technical solution: a lower control arm for automobiles, comprising a lower control arm body, three interfaces respectively provided on the lower control arm body, a protective plate provided on the lower side of the lower control arm body, a buffer plate installed between the protective plate and the lower control arm body, multiple threaded holes provided on the lower control arm body, multiple connecting fixing holes corresponding one-to-one with the threaded holes provided on the protective plate, the connecting fixing holes passing through the buffer plate, connecting bolts inserted between the connecting fixing holes and the threaded holes, and the protective plate and the buffer plate fixedly installed on the lower control arm body by the connecting bolts.

[0005] Furthermore, the protective plate is provided with multiple upwardly extending protrusions, the bottom surface of the protrusions is provided with an inner groove, the connecting and fixing holes are opened on the top plate of the protrusions, and the buffer plate is provided with through holes for the protrusions to be inserted.

[0006] Furthermore, the lower control arm body has three threaded holes, which are distributed in a triangular structure.

[0007] Furthermore, the top surface of the lower control arm body is provided with an upwardly extending extension cylinder at each connection threaded hole position, and the extension cylinder is provided with an internal thread.

[0008] Furthermore, the top and bottom surfaces of the lower control arm body are respectively provided with weight-reducing grooves, and reinforcing ribs are also provided in the weight-reducing grooves; weight-reducing holes are respectively provided on both sides of the reinforcing ribs in the weight-reducing grooves.

[0009] Furthermore, the lower control arm body is made of aluminum-magnesium alloy.

[0010] Furthermore, the lower control arm body is integrally forged.

[0011] Furthermore, the protective plate is made of aluminum plate.

[0012] Furthermore, the buffer plate is made of polyurethane elastic board.

[0013] An automobile includes the aforementioned lower control arm, and the three interfaces are a first interface, a second interface, and a third interface, wherein the first interface and the second interface are respectively connected to the subframe, and the third interface is connected to the steering knuckle.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model can significantly improve the protection capability of the lower control arm body by installing a buffer plate and a protective plate on the lower side of the lower control arm body respectively. When the lower control arm body is hit by a collision, the protective plate and the buffer plate can work together to provide protection and buffering, thereby preventing the lower control arm body from being directly hit by the collision.

[0015] 2. By using aluminum-magnesium alloy for the lower control arm body and opening weight-reducing grooves and holes on the lower control arm body, the weight of the lower control arm body can be reduced, thereby reducing the unsprung mass of the vehicle. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention from a top-down perspective; Figure 2 This is a perspective view of the present invention from a downward angle; Figure 3 This is a perspective view of the protective plate described in this utility model.

[0017] In the diagram: 1. Lower control arm body; 2. Guard plate; 3. Buffer plate; 4. Connecting threaded hole; 5. Connecting fixing hole; 6. Connecting bolt; 7. Protrusion; 8. Inner groove; 9. Extension tube; 10. Weight reduction groove; 11. Reinforcing rib; 12. Weight reduction hole; 13. First interface; 14. Second interface; 15. Third interface. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort should fall within the scope of protection of this utility model.

[0019] A lower control arm for automobiles includes a lower control arm body 1, which has three interfaces. The top and bottom surfaces of the lower control arm body 1 are respectively provided with weight reduction grooves 10, and reinforcing ribs 11 are provided in the weight reduction grooves 10. Weight reduction holes 12 are respectively provided on both sides of the reinforcing ribs 11 in the weight reduction grooves 10. The lower control arm body 1 is made of aluminum-magnesium alloy and is integrally forged.

[0020] This invention reduces the weight of the lower control arm body 1 by using an aluminum-magnesium alloy material and by opening a weight-reducing groove 10 and a weight-reducing hole 12 on the lower control arm body 1, thereby reducing the unsprung mass of the vehicle.

[0021] The lower control arm body 1 is provided with a guard plate 2 on its lower side, and a buffer plate 3 is installed between the guard plate 2 and the lower control arm body 1. The guard plate 2 is made of aluminum plate, and the buffer plate 3 is made of polyurethane elastic plate.

[0022] This invention significantly improves the protective capability of the lower control arm body 1 by installing a buffer plate 3 and a protective plate 2 on the lower side of the lower control arm body 1. When the lower control arm body 1 is subjected to a collision, the protective plate 2 and the buffer plate 3 can work together to provide protection and buffering, thereby preventing the lower control arm body 1 from being directly impacted.

[0023] The lower control arm body 1 has three threaded holes 4, which are arranged in a triangular structure. The guard plate 2 has three connecting fixing holes 5 that correspond one-to-one with the threaded holes 4. The connecting fixing holes 5 pass through the buffer plate 3. Connecting bolts 6 are inserted between the connecting fixing holes 5 and the threaded holes 4, and the guard plate 2 and the buffer plate 3 are fixedly installed on the lower control arm body 1 by the connecting bolts 6.

[0024] The lower control arm body 1 and the guard plate 2 of this utility model are connected by connecting bolts 6. During connection, the buffer plate 3 is first placed on the guard plate 2, and the protrusion 7 on the guard plate 2 is inserted into the through hole on the buffer plate 3. Then, the guard plate 2 and the buffer plate 3 are placed at the bottom of the lower control arm body 1, and the connecting fixing hole 5 is aligned with the connecting threaded hole 4. Finally, the connecting bolt 6 is passed through the connecting fixing hole 5 from bottom to top, and the connecting bolt 6 is tightened on the connecting threaded hole 4 on the lower control arm body 1. The guard plate 2 and the buffer pad can be fixedly installed at the bottom of the lower control arm body 1 by the three connecting bolts 6. The connecting bolts 6 are internal hex bolts.

[0025] The protective plate 2 has three upwardly extending protrusions 7, the bottom surface of each protrusion 7 has an inner groove 8, and the connecting fixing hole 5 is opened on the top plate of the protrusion 7; the buffer plate 3 has through holes for the protrusions 7 to be inserted. By providing the protrusions 7, this invention avoids the connecting bolt 6 head protruding from the bottom of the protective plate 2. During installation, the connecting bolt 6 head is in the inner groove 8 of the protrusion 7, and the protrusion 7 is inserted into the buffer plate 3.

[0026] The top surface of the lower control arm body 1 is provided with an upwardly extending extension cylinder 9 at each connecting threaded hole 4, and the extension cylinder 9 is provided with an internal thread. By providing the extension cylinder 9, this utility model can improve the connection stability between the connecting bolt 6 and the lower control arm body 1.

[0027] An automobile includes the aforementioned lower control arm, with three interfaces being a first interface 13, a second interface 14, and a third interface 15. A rubber bushing is installed in the first interface 13 and connected to the subframe via the rubber bushing. A rubber bushing is installed in the second interface 14 and connected to the subframe via the rubber bushing. A ball joint is installed in the third interface 15 and connected to the steering knuckle via the ball joint.

Claims

1. A lower control arm for automobiles, characterized in that, The system includes a lower control arm body (1), which has three interfaces. A guard plate (2) is provided on the lower side of the lower control arm body (1). A buffer plate (3) is installed between the guard plate (2) and the lower control arm body (1). The lower control arm body (1) has multiple threaded holes (4). The guard plate (2) has multiple connecting fixing holes (5) that correspond one-to-one with the threaded holes (4). The connecting fixing holes (5) pass through the buffer plate (3). A connecting bolt (6) is inserted between the connecting fixing holes (5) and the threaded holes (4), and the guard plate (2) and the buffer plate (3) are fixedly installed on the lower control arm body (1) by the connecting bolt (6).

2. The lower control arm of an automobile according to claim 1, characterized in that, The guard plate (2) is provided with a plurality of upwardly protruding parts (7), the bottom surface of the protruding parts (7) is provided with an inner groove (8), the connecting fixing hole (5) is opened on the top plate of the protruding parts (7), and the buffer plate (3) is provided with a through hole for the protruding parts (7) to be inserted.

3. The lower control arm of an automobile according to claim 1, characterized in that, The lower control arm body (1) has three connecting threaded holes (4), which are distributed in a triangular structure.

4. The lower control arm of an automobile according to claim 1, characterized in that, The top surface of the lower control arm body (1) is provided with an upwardly extending extension cylinder (9) at each connection thread hole (4), and the extension cylinder (9) is provided with an internal thread.

5. The lower control arm of an automobile according to claim 1, characterized in that, The lower control arm body (1) has a weight reduction groove (10) on its top and bottom surfaces, and a reinforcing rib (11) is provided in the weight reduction groove (10); the weight reduction groove (10) has weight reduction holes (12) on both sides of the reinforcing rib (11).

6. The lower control arm of an automobile according to claim 1, characterized in that, The lower control arm body (1) is made of aluminum-magnesium alloy.

7. The lower control arm of an automobile according to claim 1, characterized in that, The lower control arm body (1) is formed by integral forging.

8. The lower control arm of an automobile according to claim 1, characterized in that, The protective plate (2) is made of aluminum plate.

9. The lower control arm of an automobile according to claim 1, characterized in that, The buffer plate (3) is made of polyurethane elastic board.

10. A car, characterized in that, The vehicle includes the lower control arm of any one of claims 1-9, wherein the three interfaces are a first interface (13), a second interface (14) and a third interface (15), the first interface (13) and the second interface (14) being connected to the subframe respectively, and the third interface (15) being connected to the steering knuckle.

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