CN218929128U - Torsion beam behind hydraulic pipe of stress concentration - Google Patents

Abstract

The utility model relates to the technical field of manufacturing and production of automobiles and torsion beams, in particular to a hydraulic pipe rear torsion beam with concentrated stress. The shock-absorbing disc is structurally provided with a stress concentration structure, and besides the original structure of concentrating the top stress to the connecting angle positions of the torsion beam body, the longitudinal arms, the main beams and the longitudinal arms, the shock-absorbing disc is also provided with a side stress support seat for guiding the overstocked stress to the two sides of the longitudinal arm beam body at the non-connecting angle positions. The torsion beam body is provided with the spring plate with the connection angle position of trailing arm, wherein: the spring disc is provided with a side bracket hole, and the outer side of the tail end of the spring disc is provided with a side stress bracket seat; the wheel hub connecting support seats are arranged on the outer sides of the longitudinal arms and are parallel to each other; the stress at the tail end of the spring disc is transferred to the side stress support seat, and then the side stress support seat is transferred from the inner side of the trailing arm to the outer side, and is upwards transferred to the hub connection support seat and is transferred to the vehicle body for sharing. The connecting angle position of the torsion beam body and the longitudinal arm is provided with a diamond reinforcing plate.

Description

Torsion beam behind hydraulic pipe of stress concentration

Technical Field

The utility model relates to the technical field of manufacturing and production of automobiles and torsion beams, in particular to a hydraulic pipe rear torsion beam with concentrated stress.

Background

The utility model provides a torsion beam is a suspension that is commonly used of automotive suspension, mainly is balanced the upper and lower run-out of left and right wheels through a torsion beam to set up the shock attenuation connecting rod at its curb girder and connect in order to reduce the rocking of vehicle, keep the steady of vehicle, its basic structure is torsion beam and both ends longitudinal arm welding form, and general torsion beam structure is a steel sheet and buckles into U-shaped or V-shaped section structure, and its advantage is simple structure, with low costs, occupation space is little etc. like patent number CN202022801264.0 a back torsion beam assembly, including left longeron, right longeron and torsion beam crossbeam, the both ends of torsion beam crossbeam are connected with left longeron and right longeron respectively, the torsion beam crossbeam is tubular structure, and the section is the V font, from the tip to length direction centre of torsion beam crossbeam is provided with the angle change control point of a plurality of control V font opening inboard angle to make the opening of V font form by big angle change control point that becomes big again, and the V font outside of torsion beam is adjacent between the angle change control point forms by the tip to the centre and forms by wide evenly changing section. The utility model has the beneficial effects that the torsion rigidity and the bending rigidity are improved by arranging the rear torsion beam cross beam into a closed V-shaped angle-changing structure. The spring disc is transferred to the main beam and the side beam in the overscope range of various movements and bearing by changing the combination of the beam body structure and the spring disc structure, and the welding process level of the corresponding hydraulic tube rear torsion beam is generally improved according to the situation because of the problem of the arrangement position of the spring disc, so that the hydraulic tube rear torsion beam capable of centralizing the stress balance is needed.

Disclosure of Invention

In order to solve the problems in the prior art, the rear torsion beam of the hydraulic pipe with concentrated stress is provided, a torsion beam and a longitudinal arm side beam thereof are manufactured by adopting a low-cost hydraulic pipe forming technology, and a stress concentrating structure is arranged on a shock absorption disc structure, so that the original connecting angle positions of a torsion beam body, a longitudinal arm, a main beam and the longitudinal arm are concentrated with top stress, and a side stress support seat is also arranged to guide the overstock range stress to the two sides of the longitudinal arm beam body at the non-connecting angle positions for concentration.

The utility model solves the technical problems by adopting the technical scheme that: the utility model provides a torsion beam behind hydraulic pipe of stress concentration, includes torsion beam body and connects the trailing arm at torsion beam body both ends respectively, and torsion beam body and the junction angle position of trailing arm are provided with the spring holder, wherein: the spring disc is provided with a side bracket hole, and a side stress bracket seat is arranged on the outer side of the tail end of the spring disc; the wheel hub connecting support seats are arranged on the outer sides of the longitudinal arms and are parallel to each other; the stress at the tail end of the spring disc is transferred to the side stress support seat, and then the side stress support seat is transferred from the inner side of the trailing arm to the outer side, and is upwards transferred to the hub connection support seat and is transferred to the vehicle body for sharing.

Preferably, the top of the connecting angle position of the torsion beam body and the trailing arm is further provided with a diamond reinforcing plate, the diamond reinforcing plate comprises a main connecting piece in the center and a beam top connecting piece above the main connecting piece, an inner side wall connecting piece below the main connecting piece, the beam top connecting piece and the inner side wall connecting piece are bent in an arc shape, the head end and the tail end of the main connecting piece are cut and provided with ridge grooves, and the ridge grooves divide the main connecting piece to form an upper ridge patch and a lower ridge patch. The top of torsion beam body and trailing arm is connected in welding fastening in the laminating of roof beam connection piece, and two upper and lower spinal patches are respectively laminated welding fastening the top outer wall and the side outer wall of trailing arm, are favorable to the diamond reinforcing plate to connect on torsion beam body and trailing arm very much, resist the overlapping striking impact force ability that the striking brought, protection junction angle department structure.

Preferably, neck grooves are cut and arranged at the outer side central positions of the beam top connecting sheet and the inner side wall connecting sheet. The setting of neck groove promotes the central point piece flexibility ability of energy roof connection piece and inside wall connection piece, avoids metal fatigue.

Preferably, the side stress bracket seat comprises a bottom plate, a traction bracket supporting plate hole is formed in the center of the bottom plate in a hollowed manner, a traction rod mounting hole is formed in the front section and the rear end of the traction bracket supporting plate hole, the left side of the bottom plate is attached to the bottom of a longitudinal arm and connected, a right frame plate is arranged on the right side of the bottom plate in a rolling manner, a vertical connecting piece is arranged on the tail end of the bottom plate in a rolling manner, a swing arm column is arranged in the side stress bracket seat, a swing shaft of the swing arm column is transversely erected on the longitudinal arm and the right frame plate, the head end of the right frame plate is integrally welded on a spring disc, and a bottom frame locking plate is arranged at the bottom of the bottom plate. The side stress support seat is connected with the bottom of the longitudinal arm, the downward pressing stress resistance is insufficient, the right frame piece is arranged to be connected with the spring disc, the vertical welding thread is long, the vertical connecting piece is arranged to be connected with the longitudinal arm, the welding thread is also long, the bottom piece is further provided with a bottom frame locking piece to connect the spring disc with the side stress support seat, the stress of the longitudinal arm and the spring disc of the side stress support seat is further reduced from the spring disc, the traction support plate hole is provided with a support plate body structure to further strengthen the connection of the longitudinal arm and the side stress support seat, and the spring disc is guided to concentrate the rear stress to the longitudinal arm again instead of being born by the self.

Preferably, the head end of the side stress bracket seat is attached to the bottom of the spring disc, and the traction rod mounting holes formed in the head end are symmetrically formed in the bottom of the side bracket hole of the spring disc.

Preferably, the torsion beam body and the longitudinal arm are of an I-shaped structure, the longitudinal arm is of a hydraulic tubular beam structure, the longitudinal arm beam structure is divided into a circular tube beam and a square tube beam, the circular tube beam and the square tube beam are respectively molded into a head end and a tail end at the joint of the circular tube beam and the torsion beam body, and the whole longitudinal arm is of an S or L shape after the circular tube beam and the square tube beam are combined. The S-shaped structure of the longitudinal arm has higher flexibility, the torsion beam body is provided with a square cross-section structure with larger area instead of a round shape, and is made into a structural form with larger bending-resistant cross-section coefficient, so that the structure meets the strength requirement required by an axle, complex design is not required for materials and pipe thickness, the transition structure combined by the two is beneficial to the dispersion of stress, the respectively-shaped structure of the circular pipe beam and the pipe beam can lead the tail end to be large in volume, the area of a bearing part is larger, more components can be effectively distributed and arranged to be connected onto the whole longitudinal arm, and the torsion beam is concentrated on the square pipe beam.

Preferably, the fastening plate, the inner side wall connecting piece and the outer wing connecting piece of the spring disc of the hub connection bracket seat are arranged in parallel, and the fastening plate and the swing shaft are arranged on the same axis. The buckling plates, the inner side wall connecting plates and the outer wing connecting plates are arranged at the inner side, the outer side, the top and the bottom of the longitudinal arm in parallel at one time, and the stress is completely shared by different planes, so that the stress borne by the longitudinal arm is larger.

In summary, compared with the traditional torsion beam structure, the improved torsion beam rear axle structure provided by the utility model has the advantages that 1, the torsion beam and the longitudinal arm side beams thereof are manufactured by adopting a low-cost hydraulic pipe forming technology, and the stress concentration structure is arranged on the shock absorption disc structure, so that the original connecting angle positions of the torsion beam body, the longitudinal arms and the main beams and the longitudinal arms are concentrated, and the side stress support seat is also arranged to guide the overstocked stress to the two sides of the longitudinal arm beam body at the non-connecting angle position; 3. the side stress support seat is connected with the bottom of the longitudinal arm, the downward pressing stress resistance is insufficient, the right frame piece is arranged to be connected with the spring disc, the vertical welding thread is long, the vertical connecting piece is arranged to be connected with the longitudinal arm, the welding thread is also long, the bottom piece is further provided with a bottom frame locking piece to connect the spring disc with the side stress support seat, the stress of the longitudinal arm and the spring disc of the side stress support seat is further reduced from the spring disc, the traction support plate hole is provided with a support plate body structure to further strengthen the connection of the longitudinal arm and the side stress support seat, and the spring disc is guided to concentrate the rear stress to the longitudinal arm again instead of being born by the self.

Drawings

FIG. 1 is a top view of the overall structure;

FIG. 2 is a top exploded view;

FIG. 3 is an installation diagram of a spring plate stress concentration related structure;

FIG. 4 is a diagram of a diamond reinforcing plate;

FIG. 5 is a block diagram of a side stress bracket mount;

FIG. 6 is a state diagram of an application of the present architecture;

fig. 7 is a rear view of the spring plate and side stress bracket mount connection.

In the figure: torsion beam body 1, trailing arm 2, connecting angle 3, spring plate 4, side bracket hole 5, side stress bracket seat 5a, hub connection bracket seat 6, diamond reinforcing plate 7, main connection piece 8, roof beam connection piece 9, inside wall connection piece 10, ridge groove 11, ridge patch 12, neck groove 13, bottom piece 14, traction bracket support plate hole 15, traction rod mounting hole 16, right frame piece 17, vertical connection piece 18, swing arm column 19, pendulum shaft 20, chassis lock plate 21, trailing arm beam body 22, circular tube beam 23, square tube beam 24, buckle plate 25, outer wing connection piece 26.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating the basic structure of the present utility model by way of illustration only, and thus show only the constitution related to the present utility model;

in the description of the present utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model.

The main embodiment of the utility model is as follows: the utility model provides a torsion beam behind hydraulic pressure pipe that stress concentrates, shown in fig. 3, includes torsion beam body 1 and connects respectively the trailing arm 2 at torsion beam body both ends, torsion beam body 1 and trailing arm 2 are I shape composition structure, and the whole hydraulic pressure tubular beam structure that is of trailing arm beam body 22 structure is in the square tube beam 24 of the circular tube beam 23 and the tail end of being moulded respectively with torsion beam body 1 junction bisection, and the whole trailing arm 2 is the S shape after circular tube beam 23 and square tube beam 24 make up. The S-shaped structure of the longitudinal arm has higher flexibility, the torsion beam body is provided with a square cross-section structure with larger area instead of a round shape, and is made into a structural form with larger bending-resistant cross-section coefficient, so that the structure meets the strength requirement required by an axle, complex design is not required for materials and pipe thickness, the transition structure combined by the two is beneficial to the dispersion of stress, the respectively-shaped structure of the circular pipe beam and the pipe beam can lead the tail end to be large in volume, the area of a bearing part is larger, more components can be effectively distributed and arranged to be connected onto the whole longitudinal arm, and the torsion beam is concentrated on the square pipe beam.

Continuing as shown in fig. 1, the torsion beam body 1 and the trailing arm 2 combined structure can form a T-shaped structure, wherein the inclined lower position of the inner side can form an included angle of 45-13 degrees, namely a connecting angle 3, and a spring disc 4 is welded at the position of the connecting angle 3 of the torsion beam body 1 and the trailing arm 2, wherein: as shown in fig. 2, the spring disc 48 o' clock is provided with a side bracket hole 5, and the outer side of the tail end of the spring disc 4 is provided with 1 side stress bracket seat 5a as shown in fig. 1; a wheel hub connecting support seat 6 is arranged on the outer side of the longitudinal arm 2 to the top in a welding manner corresponding to the position of the side stress support seat 5a, and the side stress support seat 5a and the wheel hub connecting support seat 6 are arranged in parallel; the stress at the tail end of the spring disc 4 is transferred to a side stress support seat 5a, then the stress is transferred from the inner side of the longitudinal arm 2 to the outer side by the side stress support seat 5a, and is transferred upwards to a hub connection support seat 6 and is transferred to a vehicle body for sharing, as shown in fig. 6, the side stress support seat 5a comprises a bottom plate 14, a traction support plate hole 15 is arranged in the center hollow of the bottom plate 14, a traction rod mounting hole 16 is arranged at the front section and the rear end of the traction support plate hole 15, the left side of the bottom plate 14 is attached to the bottom of the longitudinal arm 2 and connected, a right side roll is provided with a right frame piece 17, a vertical connecting piece 18 is arranged at the tail end roll, a swing arm column 19 is arranged in the side stress support seat 5a, a swing shaft 20 of the swing arm column 19 is transversely erected on the longitudinal arm 2 and the right frame piece 17, and the head end of the right frame piece 17 is integrally welded on the spring disc 4, and a bottom plate 14 is provided with a bottom frame locking piece 21. The swing arm 19 will transmit the stress upwards;

in turn, the stresses from the vehicle hub can be transmitted to the square tube beam 24 of the trailing arm 2 and then to the spring plate. The torsion beam and the longitudinal arm side beams thereof are manufactured by adopting the hydraulic pipe forming technology with low cost, original top stress is concentrated to the connecting angle positions of the torsion beam body, the longitudinal arm and the main beam and the longitudinal arm, and a side stress support seat is also arranged to guide the stress exceeding the corresponding range to the two sides of the longitudinal arm beam body at the non-connecting angle position for concentration;

in embodiment 2, in order to strengthen the connection and stress treatment of the whole connection angle 3 position structure, as shown in fig. 1, 2 and 4, the top of the connection angle 3 position of the torsion beam body 1 and the trailing arm 2 is further provided with a diamond reinforcing plate 7, the diamond reinforcing plate 7 comprises a central main connecting piece 8 and a beam top connecting piece 9 above the main connecting piece, an inner side wall connecting piece 10 below, the beam top connecting piece 9 and the inner side wall connecting piece 10 are bent in an arc shape, the head end and the tail end of the main connecting piece 8 are cut and provided with a ridge groove 11, and the ridge groove 11 divides the main connecting piece 8 to form an upper ridge patch 12 and a lower ridge patch 12. The roof beam connection piece 9 laminating welding fastening connects the top of torsion beam body 1 and trailing arm 2, the outside central authorities of roof beam connection piece 9 and inside wall connection piece 10 all cut and set up neck groove 13. The arrangement of the neck groove 13 improves the flexibility of the sheet body at the central positions of the energy beam top connecting sheet 9 and the inner side wall connecting sheet 10, and avoids metal fatigue.

The upper ridge patch 12 and the lower ridge patch 12 are respectively attached to the top outer wall and the side outer wall of the welding fastening trailing arm 2, so that the diamond reinforcing plate 7 is very beneficial to being connected to the torsion beam body 1 and the trailing arm 2, the front traction resistance is strong, and the structure of the connecting angle is protected. The diamond-shaped reinforcing plate is ingenious in design and multipurpose, the top outer wall and the side outer wall of the trailing arm are bonded, welded and fastened, the diamond-shaped reinforcing plate is very beneficial to being connected to the torsion beam body and the trailing arm, the forward pulling resistance is high, the integral forward and backward force of the trailing arm is detailed, such as the forward collision force, and the corner connecting structure of the torsion beam body and the trailing arm is protected;

as shown in fig. 5 and 6, the side stress support base is connected with the bottom of the trailing arm, the downward compression stress is not enough, the right frame piece 17 is connected with the spring disc, the vertical welding thread is long, the vertical connecting piece is connected with the trailing arm, the welding thread is also long, the bottom plate is further provided with a bottom plate locking piece for connecting the spring disc with the side stress support base, the stress of the spring disc of the trailing arm and the side stress support base is reduced from the spring disc, the traction support plate hole is provided with a support plate body structure for further reinforcing the connection of the trailing arm and the side stress support base, and the spring disc is guided to concentrate the stress to the trailing arm to the rear direction again instead of bearing the stress.

Preferably, the head end of the side stress bracket seat 5a is attached to the bottom of the spring holder 4, and the traction rod mounting holes 16 provided at the head end are symmetrically provided at the bottom of the side bracket hole 5 of the spring holder 4. The traction lever is provided in the traction lever mounting hole 16 as an aid, and is disposed just between the swing arm post 19 and the spring body of the spring plate, so that the flexibility of the vehicle body can be further increased.

As shown in fig. 1-3, the torsion beam body 1 and the trailing arm 2 are of an i-shaped structure, the whole trailing arm is of a hydraulic tubular beam structure, the longitudinal arm beam body 22 is divided into a circular tube beam 23 and a square tube beam 24, the circular tube beam 23 and the square tube beam 24 are respectively molded into a head end and a tail end at the joint of the torsion beam body 1, and the whole trailing arm 2 is of an S or L shape after the circular tube beam 23 and the square tube beam 24 are combined. The S-shaped structure of the longitudinal arm has higher flexibility, the torsion beam body is provided with a square cross-section structure with larger area instead of a round shape, and is made into a structural form with larger bending-resistant cross-section coefficient, so that the structure meets the strength requirement required by an axle, complex design is not required for materials and pipe thickness, the transition structure combined by the two is beneficial to the dispersion of stress, the respectively-shaped structure of the circular pipe beam and the pipe beam can lead the tail end to be large in volume, the area of a bearing part is larger, more components can be effectively distributed and arranged to be connected onto the whole longitudinal arm, and the torsion beam is concentrated on the square pipe beam.

As shown in fig. 3, the fastening plate 25 of the hub connection bracket 6, the inner side wall connecting piece 10 and the outer wing connecting piece 26 of the spring disc 4 are arranged in parallel, and the fastening plate 25 and the pendulum shaft 20 are arranged on the same axis. The buckling plates, the inner side wall connecting plates and the outer wing connecting plates are arranged at the inner side, the outer side, the top and the bottom of the longitudinal arm in parallel at one time, and the stress is completely shared by different planes, so that the stress borne by the longitudinal arm is larger.

The utility model has been described above by way of example with reference to the accompanying drawings, it is obvious that the implementation of the utility model is not limited by the above manner, and it is within the scope of the utility model to apply the inventive concept and technical solution to other occasions as long as various improvements made by the inventive method concept and technical solution are adopted or without any improvement.

Claims (7)

1. The utility model provides a torsion beam behind hydraulic pipe of stress concentration, includes torsion beam body (1) and connects respectively at trailing arm (2) at torsion beam body both ends, and torsion beam body (1) and trailing arm (2) junction angle (3) position is provided with spring holder (4), characterized by: the spring disc (4) is provided with a side bracket hole (5), and a side stress bracket seat (5 a) is arranged on the outer side of the tail end of the spring disc (4); the wheel hub connecting support seat (6) is arranged at the outer side of the longitudinal arm (2) corresponding to the side stress support seat (5 a) and is arranged in parallel; the tail end stress of the spring disc (4) is transferred to the side stress support seat (5 a), and then the side stress support seat (5 a) is transferred from the inner side of the trailing arm (2) to the outer side, and is transferred upwards to the hub connection support seat (6) and is transferred to the vehicle body for sharing.

2. The stress concentrating hydraulic tube rear torsion beam of claim 1, wherein: the torsion beam comprises a torsion beam body (1) and a longitudinal arm (2), wherein a diamond reinforcing plate (7) is further arranged at the top of the connecting angle (3) of the torsion beam body (1) and the longitudinal arm (2), the diamond reinforcing plate (7) comprises a central main connecting piece (8) and a beam top connecting piece (9) above the main connecting piece, an inner side wall connecting piece (10) below the main connecting piece, the beam top connecting piece (9) and the inner side wall connecting piece (10) are bent in an arc shape, a ridge groove (11) is formed in the cutting of the head end and the tail end of the main connecting piece (8), and the ridge groove (11) is used for dividing the main connecting piece (8) to form an upper ridge patch and a lower ridge patch (12).

3. The stress concentrating hydraulic tube rear torsion beam of claim 2, wherein: the middle positions of the outer sides of the beam top connecting piece (9) and the inner side wall connecting piece (10) are provided with neck grooves (13) in a cutting mode.

4. The stress concentrating hydraulic tube rear torsion beam of claim 1, wherein: the side stress support seat (5 a) comprises a bottom plate (14), a traction support plate hole (15) is formed in the center hollow of the bottom plate (14), a traction rod mounting hole (16) is formed in the front section and the rear end of the traction support plate hole (15), the left side of the bottom plate (14) is attached to the bottom of the longitudinal arm (2), a right frame piece (17) is arranged on the right side of the bottom plate in a rolling manner, a vertical connecting piece (18) is arranged on the tail end of the bottom plate in a rolling manner, a swing arm column (19) is arranged in the side stress support seat (5 a), a swing shaft (20) of the swing arm column (19) is transversely erected on the longitudinal arm (2) and the right frame piece (17), the head end of the right frame piece (17) is integrally welded on the spring disc (4), and a bottom frame locking piece (21) is arranged on the bottom of the bottom plate (14).

5. A stress concentrating hydraulic tube rear torsion beam according to claim 1 or 4, wherein: the head end of the side stress bracket seat (5 a) is attached to the bottom of the spring disc (4), and the traction rod mounting holes (16) arranged at the head end are symmetrically arranged at the bottom of the side bracket holes (5) of the spring disc (4).

6. A stress concentrating hydraulic tube rear torsion beam according to claim 1 or 2, wherein: the torsion beam body (1) and the longitudinal arm (2) are of I-shaped structure, the longitudinal arm is of a hydraulic tubular beam structure, the longitudinal arm beam body (22) is divided into a circular tube beam (23) and a square tube beam (24) which are respectively molded into a head end and a tail end at the joint of the torsion beam body (1), and the whole longitudinal arm (2) is of an S or L shape after the circular tube beam (23) and the square tube beam (24) are combined.

7. The stress concentrating hydraulic tube rear torsion beam of claim 1, wherein: the hub is connected with the buckling plate (25) of the bracket seat (6), the inner side wall connecting piece (10) and the outer wing connecting piece (26) of the spring disc (4) in parallel, and the buckling plate (25) and the swing shaft (20) are arranged on the same axis.

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