Rear torsion beam with integrated multi-function flange

Abstract

The present invention relates to the field of automobile structural design, and in particular to a rear torsion beam with a multifunctional integrated flange, wherein a spring seat and a swing arm are both two and symmetrically fixed on the side walls at both ends of the beam, and two flanges are symmetrically arranged on the end surfaces at both ends of the two beams, a first mounting through hole is provided on the flange, and first fixing through holes are arranged at intervals around the end surface of the first mounting through hole, a wheel hub bearing is inserted into the first mounting through hole, and the second fixing through holes around the wheel hub bearing and the first fixing through hole are fixed by first bolts, two third fixing through holes are provided on the edge of the flange, and a wheel brake is fixed at the third fixing through holes by second bolts, a boss is provided on a side surface of the flange facing the swing arm, a countersunk hole is provided on the outer end surface of the boss, and a fourth fixing through hole is provided on the swing arm opposite to the countersunk hole, and the mounting hole of the shock absorber is clamped between the first fixing through hole and the countersunk hole and fixed by screw connection, and the structure is relatively compact.

Description

Technical Field

[0001] The invention relates to the field of automobile structure design, and in particular to a rear torsion beam with a multifunctional integrated flange. Background Art

[0002] As the living standards of the Chinese people continue to improve, the automobile industry, logistics industry and road traffic construction industry are booming, the domestic automobile market is expanding, and automobiles are becoming more and more popular. The rear torsion beam belongs to the automobile driving system component and is a type of automobile rear suspension device. It is mainly used to bear the rear load of the automobile, buffer the force transmitted from the road surface to the frame, reduce vibration, and ensure the smooth driving of the vehicle. In the prior art, most of the installation points of the rear torsion beam are distributed on both sides of the crossbeam, and the space is relatively ample. The wheel brake, wheel hub bearing, shock absorber and the connection with the crossbeam are mostly stamped parts welded to achieve the function. There are many loose parts and many welds. The risk of torsion beam failure due to weld failure is high, which increases the safety risk of the product. Too many welds will also affect the camber angle and toe angle of the product. The number of stamping dies, welding tools and inspection tools will also increase significantly, resulting in expensive products and loss of market competitiveness. In the case of compact structure, stamped welded parts cannot achieve and install the functions of the product. Therefore, a solution is urgently needed to solve the above technical problems. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a rear torsion beam with a multifunctional integrated flange, so that the wheel brake, wheel hub bearing, shock absorber and the connection structure with the crossbeam are more compact and the connection is more reliable, and the safety factor is higher in use.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a rear torsion beam with a multifunctional integrated flange, including a crossbeam, a spring seat, a swing arm, a flange and a thrust rod bracket, the spring seat is two and symmetrically fixed on the side walls at both ends of the crossbeam, the swing arm is two and symmetrically fixed on the side walls at both ends of the crossbeam, the two spring seats are arranged between the two swing arms, the flange is two and symmetrically arranged on the end faces of the two crossbeams, the thrust rod bracket is arranged on the side wall of one end of the crossbeam, a first mounting through hole is provided on the flange, and the end faces of the first mounting through hole are arranged at intervals around the end faces. A first fixing through hole, a wheel hub bearing is inserted in the first mounting through hole and the second fixing through holes around the wheel hub bearing are fixed to the first fixing through hole by a first bolt, two third fixing through holes are opened at the edge of the flange adjacent to the first fixing through hole, the wheel brake is fixed to the third fixing through holes by a second bolt, a boss is provided on the side surface of the flange facing the swing arm, a countersunk hole is opened on the outer end surface of the boss, a fourth fixing through hole is opened on the swing arm opposite to the countersunk hole, and the mounting hole of the shock absorber is clamped between the first fixing through hole and the countersunk hole and fixed by screw connection.

[0005] Preferably, a wire harness fixing frame is cantilevered on the side wall of the boss, the wire harness fixing frame is in the shape of a bent plate, and a fifth fixing through hole is provided at the cantilevered end of the wire harness fixing frame.

[0006] Furthermore, the swing arm is in the shape of a slat and is vertically connected to the crossbeam, and the spring seat and flange located at the same end are respectively arranged on both sides of the plate surface of the swing arm at the end.

[0007] Beneficial effects: The present application can centrally install the wheel hub bearing, wheel brake, and shock absorber through a flange, which has a relatively compact structure, and can be removably fixed by the first bolt, the second bolt, and the screw, respectively, to avoid the risk of failure of the torsion beam due to weld failure, and has a high safety factor in use, which is conducive to ensuring the toe angle and camber angle of the product, greatly reducing the number of stamping dies, welding tools, and inspection tools, reducing product prices and improving market competitiveness. In addition, a clamping part is formed between the boss in the flange and the swing arm to clamp and fix the shock absorber, saving installation costs and making installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural diagram of the present invention;

[0009] Figure 2 This is the structural diagram of the flange. DETAILED DESCRIPTION

[0010] Combine the following Figure 1-2 , the present invention is further described.

[0011] A rear torsion beam with a multifunctional integrated flange comprises a cross beam 10, a spring seat 20, a swing arm 30, a flange 40 and a thrust rod bracket 50, wherein two spring seats 20 are symmetrically fixed on the side walls at both ends of the cross beam 10, two swing arms 30 are symmetrically fixed on the side walls at both ends of the cross beam 10, two spring seats 20 are arranged between the two swing arms 30, two flanges 40 are symmetrically arranged on the end surfaces of both ends of the two cross beams 10, the thrust rod bracket 50 is arranged on the side wall of one end of the cross beam 10, a first mounting through hole 41 is provided on the flange 40, and first fixing through holes 42 are arranged around the end surface of the first mounting through hole 41 at intervals, The wheel hub bearing is inserted in the first mounting through hole 41 and fixed between the second fixing through holes and the first fixing through hole 42 around the wheel hub bearing by means of first bolts. Two third fixing through holes 43 are provided at the edge of the flange 40 adjacent to the first fixing through hole 42. The wheel brake is fixed to the third fixing through holes 43 by means of second bolts. A boss 44 is provided on the side surface of the flange 40 facing the swing arm 30. A countersunk hole 45 is provided on the outer end surface of the boss 44. A fourth fixing through hole 31 is provided on the swing arm 30 opposite to the countersunk hole 45. The mounting hole of the shock absorber is clamped between the first fixing through hole 31 and the countersunk hole 45 and fixed by means of screws. The present application can centrally install the wheel hub bearing, wheel brake, and shock absorber through a flange 40, which has a relatively compact structure, and is removably fixed by the first bolt, the second bolt, and the screw, respectively, to avoid the risk of failure of the torsion beam due to weld failure, and has a high safety factor in use, which is conducive to ensuring the toe angle and camber angle of the product, greatly reducing the number of stamping dies, welding tools, and inspection tools, reducing product prices and improving market competitiveness. In addition, a clamping portion is formed between the boss 44 in the flange 40 and the swing arm 30 to clamp and fix the shock absorber, saving installation costs and being relatively convenient to install.

[0012] Preferably, a wire harness fixing frame 60 is cantilevered from the side wall of the boss 44, and the wire harness fixing frame 60 is in the shape of a bent plate. A fifth fixing through hole 61 is opened at the cantilevered end of the wire harness fixing frame 60, and the fixing hole opened in the mounting gasket fixed on the wire harness and the fifth fixing through hole 61 are fixedly connected by a third bolt, thereby fixing the wire harness.

[0013] Furthermore, the swing arm 30 is in the shape of a strip and is vertically connected to the crossbeam 10 , and the spring seat 20 and the flange 40 located at the same end are respectively arranged on both sides of the plate surface of the swing arm 30 at the end.

[0014] It should be understood that the specific embodiments described above are only used to explain the present invention, and are not used to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A rear torsion beam with a multifunctional integrated flange, characterized in that: The invention comprises a cross beam (10), a spring seat (20), a swing arm (30), a flange (40) and a thrust rod bracket (50), wherein the spring seats (20) are two and symmetrically fixed on the side walls at both ends of the cross beam (10), the swing arms (30) are two and symmetrically fixed on the side walls at both ends of the cross beam (10), the two spring seats (20) are arranged between the two swing arms (30), the flanges (40) are two and symmetrically arranged on the end surfaces at both ends of the two cross beams (10), the thrust rod bracket (50) is arranged on the side wall at one end of the cross beam (10), and the flange ( A first mounting through hole (41) is formed on the flange (40), and first fixing through holes (42) are arranged at intervals around the end surface of the first mounting through hole (41), the wheel hub bearing is inserted into the first mounting through hole (41), and the second fixing through holes around the wheel hub bearing and the first fixing through hole (42) are fixed by first bolts, two third fixing through holes (43) are formed on the edge of the flange (40) near the first fixing through hole (42), the wheel brake is fixed to the third fixing through holes (43) by second bolts, and the flange (40) faces the swing arm (30) A boss (44) is provided on one side surface of the housing, a countersunk hole (45) is provided on the outer end surface of the boss (44), a fourth fixing through hole (31) is provided on the swing arm (30) opposite to the countersunk hole (45), and the mounting hole of the shock absorber is clamped between the first fixing through hole (42) and the countersunk hole (45) and fixed by screw connection; a wire harness fixing frame (60) is suspended on the side wall of the boss (44), the wire harness fixing frame (60) is in the shape of a bent plate, and a fifth fixing through hole (61) is provided at the overhanging end of the wire harness fixing frame (60); a fixing hole provided in a mounting gasket fixed on the wire harness and the fifth fixing through hole (61) are fixedly connected by a third bolt; the swing arm (30) is in the shape of a strip and is vertically connected to the crossbeam (10), and the spring seat (20) and the flange (40) located at the same end are respectively arranged on both sides of the plate surface of the swing arm (30) at the end.

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