CN205345044U - High trafficability characteristic cross country vehicle double -wishbone independent suspension mounting structure - Google Patents

Abstract

The utility model discloses a double-wishbone independent suspension installation structure for a high-passability off-road vehicle. The longitudinal beam of the vehicle frame adopts the front and rear segmented internal and external lap joint welding mode, and the interior has a multi-segment reinforcement plate structure; the cross beam and the longitudinal beam adopt a welding form; Most of the mounting brackets on the upper wing surface of the beam adopt the lap joint structure of the inner and outer plates and the welding of the longitudinal beam to ensure better fixed rigidity, increase the effective width of the longitudinal beam, improve the molding process of the frame, expand the layout space of the chassis, and increase the The designed span of the triangular arm increases the height of the roll center of the suspension system; the local concave arc structure on the lower surface of the longitudinal beam reduces the height difference between the middle and rear end surfaces of the longitudinal beam and maintains good molding processability. The initial inner and outer joint angles of the half shaft are reduced, and the jumping space of the half shaft and the jumping stroke of the rear suspension are increased; the segmental welding method is adopted, the molding process is good, the mold investment cost is low, and the product is generalized and serialized.

Description

A high-passability off-road vehicle double wishbone independent suspension installation structure

technical field

The utility model belongs to the technical field of vehicle frames, and relates to an off-road vehicle suspension installation structure adopting a segmented welded vehicle frame.

Background technique

Because off-road vehicles often pass through complex and harsh road conditions, they have high requirements on the climbing ability and passability of the vehicle. Double-wishbone independent suspension, due to its low roll center height, small change in wheelbase, and less partial tire wear, can improve the driving stability and passability of the vehicle when it is used on off-road vehicles. The installation structure of the frame longitudinal beam of the wishbone independent suspension puts forward higher requirements.

Traditional off-road vehicles mostly use integral welded frames, while the rear axle mostly uses integral axles and non-independent suspensions, and only a few vehicles use disconnected axles and independent suspensions. And if the rear suspension adopts double wishbone independent suspension, the general coil spring and shock absorber mounting bracket, the upper triangle arm front and rear mounting brackets, these three brackets are generally arranged on the side wall of the longitudinal beam, limited by this Due to the limitations of the installation space, chassis layout and frame molding process of this suspension system, the passability of this type of off-road vehicle cannot be further improved.

At the same time, most off-road vehicle double-wishbone suspension integral frames have regular and even frame cross-sections, and installation structures are arranged on both sides of the frame, which is limited by the suspension installation space and the wheel runout, and the vehicle trafficability cannot be further improved. promote.

Utility model content

In view of the problems described in the background technology, the purpose of this utility model is to provide a high-passability off-road vehicle with independent double-wishbone arms that adopts a segmented welded frame, and changes the installation structure arrangement and the local cross-sectional shape of the frame to further improve passability. Suspension mounting structure.

In order to achieve the above-mentioned purpose, the double-wishbone independent suspension installation structure of the high-passability off-road vehicle designed by the utility model includes a longitudinal beam, a third beam and a fourth beam that are vertically welded to the longitudinal beam respectively, and is characterized in that: The upper wing surface of the longitudinal beam is fixedly connected with the coil spring and shock absorber mounting bracket, the upper triangular arm front mounting bracket, and the upper triangular arm rear mounting bracket. The upper triangular arm rear mounting bracket is located between the coil spring and shock absorber mounting bracket and the upper triangular arm rear mounting bracket. Between the front mounting brackets of the upper triangular arm; the end of the third beam is fixedly connected to the front mounting bracket of the lower triangular arm, the end of the fourth beam is fixedly connected to the rear mounting bracket of the lower triangular arm, and the front and rear of the lower triangular arm are installed The brackets are all located below the longitudinal beams; the lower surface of the longitudinal beams is fixedly connected with the installation bracket of the front elastic buffer block, and the installation bracket of the front elastic buffer block is located between the third beam and the fourth beam, and the front elastic buffer The block mounting bracket is provided with a thrust rod mounting bracket; the lower surface of the longitudinal beam is also provided with a rear elastic buffer block mounting bracket.

Preferably, the lower surface of the longitudinal beam is provided with a local concave arc structure, and the local concave arc structure is located between the mounting bracket of the front elastic buffer block and the fourth cross beam.

As a preferred solution, the longitudinal beam includes a front section of the longitudinal beam, a rear section of the longitudinal beam, and a variable-section section of the longitudinal beam connecting the front section of the longitudinal beam and the rear section of the longitudinal beam; the third beam, the fourth beam, the coil spring and the shock absorber The mounting bracket, the front mounting bracket of the upper triangular arm and the rear mounting bracket of the upper triangular arm are all arranged on the rear section of the longitudinal beam.

Preferably, the longitudinal beam includes an inner plate and an outer plate welded together, the inside of the beam body surrounded by the inner plate and the outer plate is hollow, and a reinforcing plate is provided in the beam body, and the reinforcing plate and the inner plate The inner wall and the inner wall of the outer plate are welded and connected.

Further preferably, the inner panel includes a first section of the inner panel and a second section of the inner panel connected by welding, and the first section of the inner panel and the second section of the inner panel are provided with solder joints.

Further preferably, the reinforcing plate includes an inner plate reinforcing plate and an outer plate reinforcing plate welded together by overlapping, the inner plate reinforcing plate is welded to the inner wall of the inner plate, and the outer plate reinforcing plate is welded to the inner wall of the outer plate .

Still further preferably, the inner panel reinforcement includes a rear section of the inner panel reinforcement that is welded and adapted to the rear section of the longitudinal beam, and a variable-section section of the inner panel reinforcement that is welded and adapted to the variable-section section of the longitudinal beam. The rear section of the inner panel reinforcement plate is welded to one end of the variable section section of the inner panel reinforcement panel.

Still further preferably, the outer panel reinforcement includes a rear section of the outer panel reinforcement adapted to the rear section of the longitudinal beam, and a front section of the outer panel reinforcement adapted to the variable section of the longitudinal beam and the front section of the longitudinal beam by welding.

Preferably, the front mounting bracket of the upper triangular arm and the rear mounting bracket of the upper triangular arm both include an inner plate of the upper triangular arm mounting bracket and an outer plate of the upper triangular arm mounting bracket welded to the upper wing surface of the longitudinal beam, and the upper triangular arm mounting bracket The inner plate and the outer plate of the upper triangular arm mounting bracket are welded and connected.

Further preferably, the front mounting bracket of the upper triangular arm and the rear mounting bracket of the upper triangular arm both include an inner plate of the upper triangular arm mounting bracket welded to the airfoil of the inner plate, and an upper triangular arm welded to the airfoil of the outer plate The outer plate of the mounting bracket is welded to the inner plate of the upper triangular arm mounting bracket and the outer plate of the upper triangular arm mounting bracket.

Preferably, the coil spring and shock absorber mounting bracket includes a coil spring and shock absorber mounting bracket inner plate and a coil spring and shock absorber mounting bracket outer plate welded to the upper wing surface of the longitudinal beam, and the coil spring and shock absorber mounting bracket The inner plate of the shock absorber mounting bracket is welded to the outer plate of the coil spring and shock absorber mounting bracket.

Further preferably, the mounting bracket for the coil spring and the shock absorber includes the coil spring and the inner plate of the mounting bracket for the shock absorber that are welded to the airfoil of the inner plate, and the coil spring and the shock absorber that are welded and connected to the airfoil of the outer plate The outer plate of the mounting bracket, the inner plate of the mounting bracket of the coil spring and the shock absorber is welded to the outer plate of the mounting bracket of the coil spring and the shock absorber.

Preferably, the installation bracket of the front elastic buffer block includes the upper plate of the front limit block of the rear suspension and the lower plate of the front limit block of the rear suspension, and the upper plate of the front limit block of the rear suspension and the front limit block of the rear suspension The lower plate of the block is welded and connected; the mounting bracket of the thrust rod is welded with the upper plate of the front limit block of the rear suspension.

Preferably, the installation bracket of the rear elastic buffer block includes the upper plate of the rear limiter of the rear suspension and the lower plate of the rear limiter of the rear suspension, the upper plate of the rear limiter of the rear suspension and the rear limiter of the rear suspension Block lower plate solder connection.

The beneficial effect of the utility model is that: the longitudinal beam of the vehicle frame adopts the overlapping welding method of the front and rear sections, the inside and the outside have a multi-section reinforcement plate structure, and the structure shape of the reinforcement plate meets the requirements of the vehicle frame painting process. The beam and the longitudinal beam are welded; most of the mounting brackets on the upper wing of the longitudinal beam adopt the lap joint structure of the inner and outer plates and the longitudinal beam to ensure better fixed rigidity, which not only increases the effective width of the longitudinal beam, but also improves the frame forming process , which expands the layout space of the chassis, and also increases the design span of the triangular arm, which increases the height of the roll center of the suspension system; , under the premise of maintaining a good molding process, the initial inner and outer joint angles of the half shaft are reduced, the jumping space of the half shaft and the jumping stroke of the rear suspension are increased; the installation structure of the front elastic buffer block fully considers the existing bracket Shared, the front buffer block bracket is formed by welding the upper and lower plates, which improves the strength of the bracket, thereby realizing the buffer function of the suspension system; the segmental welding method is adopted, the forming process is good, the mold investment cost is low, and the product is generalized and serialized. At the same time, by designing a suitable suspension structure, the handling stability and cross-country passability of the vehicle are improved.

Description of drawings

Fig. 1 is a three-dimensional schematic view of the installation structure of the utility model

Fig. 2 is the schematic diagram of the front view of the installation structure of the utility model

Fig. 3 is the explosion schematic diagram of the installation structure of the present invention

detailed description

Below by means of Fig. 1～Fig. 3 and enumerating some optional embodiments of the present utility model, the technical solution of the utility model (including the preferred technical solution) is described in further detail, any technical features and any technical features in this embodiment All schemes do not limit the scope of protection of the present utility model.

As shown in Figure 1 and Figure 2, the double wishbone independent suspension installation structure of the high-passability off-road vehicle designed by the utility model includes a longitudinal beam 1, a third beam 2 and a fourth beam connected vertically to the longitudinal beam 1 respectively 3. The upper wing surface of the longitudinal beam 1 is fixedly connected with the coil spring and the shock absorber mounting bracket 4, the front mounting bracket 5 of the upper triangular arm, and the rear mounting bracket 6 of the upper triangular arm, and the rear mounting bracket 6 of the upper triangular arm is located at the Between the coil spring and shock absorber mounting bracket 4 and the front mounting bracket 5 of the upper triangular arm; the ends of the third beam 2 are fixedly connected to the front mounting bracket 7 of the lower triangular arm, and the ends of the fourth beam 3 are fixedly connected The rear mounting bracket 8 of the lower triangular arm, the front and rear mounting brackets 7, 8 of the lower triangular arm are all located below the longitudinal beam 1; the lower surface of the longitudinal beam 1 is fixedly connected with the front elastic buffer block mounting bracket 9, so The front elastic buffer block mounting bracket 9 is located between the third beam 2 and the fourth beam 3, and the front elastic buffer block mounting bracket 9 is provided with a thrust rod mounting bracket 10; the lower surface of the longitudinal beam is also provided with a rear elastic Buffer block installation bracket 11. The coil spring and shock absorber mounting bracket 4, the upper triangular arm front mounting bracket 5, and the upper triangular arm rear mounting bracket 6 are fixed on the upper wing surface of the longitudinal beam 1, on the one hand, the effective width of the longitudinal beam 1 is increased, and the frame shape is improved The technology expands the layout space of the chassis, and also increases the design span of the triangular arm and increases the height of the roll center of the suspension system.

As shown in Figure 2, the lower surface of the longitudinal beam 1 is provided with a local concave arc structure 1.1, and the local concave arc structure 1.1 is located at the front elastic buffer block mounting bracket 9 and the fourth beam 3 between. In this way, under the premise of not raising the height difference of the rear end surface of the longitudinal beam 1 and maintaining good molding processability, the initial inner and outer joint angles of the half shaft are reduced, and the jumping space of the half shaft and the jumping stroke of the rear suspension are increased. .

As shown in Figure 1 again, the longitudinal beam 1 comprises a longitudinal beam front section 1.2, a longitudinal beam rear section 1.3 and a longitudinal beam variable section section 1.4 connecting the longitudinal beam front section 1.2 and the longitudinal beam rear section 1.3; the third beam 2, The fourth beam 3, the coil spring and shock absorber mounting bracket 4, the upper triangular arm front mounting bracket 5 and the upper triangular arm rear mounting bracket 5 are all arranged at the rear section 1.3 of the longitudinal beam.

As an optimal solution, the segmented welding method is adopted, which has good molding process, low mold investment cost, high product generalization and serialization, and at the same time, through the design of a suitable suspension structure, the vehicle's handling stability and off-road passability are improved. As shown in Figure 3, segmented welding includes:

The longitudinal beam 1 includes an inner plate 1.5 and an outer plate 1.6 welded together, the inside of the beam body surrounded by the inner plate 1.5 and the outer plate 1.5 is hollow, and a reinforcing plate 1.7 is arranged in the beam body, and the reinforcing plate 1.7 is welded to the inner wall of the inner panel 1.5 and the inner wall of the outer panel 1.6; the inner panel 1.5 includes the first section 1.51 of the inner panel and the second section 1.52 of the inner panel connected by welding, and the first section 1.51 of the inner panel and the second section of the inner panel The section 1.52 is provided with welding points in the front section 1.2 of the longitudinal beam and the variable section section 1.4 of the longitudinal beam.

The reinforcement board 1.7 includes an inner board reinforcement board 1.71 and an outer board reinforcement board 1.72 that are overlapped and welded together. Inner wall welded connection.

The inner panel reinforcement plate 1.71 includes an inner panel reinforcement panel rear section 1.73 that is welded and adapted to the longitudinal beam rear section 1.3, and an inner panel reinforcement panel variable section section 1.74 that is welded and adapted to the longitudinal beam variable section section 1.4. The rear section 1.73 of the inner panel reinforcement plate is welded to one end of the variable section section 1.74 of the inner panel reinforcement panel. The outer panel reinforcement 1.72 includes an outer panel reinforcement rear section 1.75 adapted to the longitudinal beam rear section 1.3, and an outer panel reinforcement front section 1.76 welded and adapted to the longitudinal beam variable section section 1.4 and the longitudinal beam front section 1.2.

The front mounting bracket 5 of the upper triangular arm and the rear mounting bracket 6 of the upper triangular arm all include an upper triangular arm mounting bracket inner plate 56.1 welded to the upper wing surface of the inner plate 1.5, and an upper triangle arm welding connection to the upper wing surface of the outer plate 1.6. The outer plate 56.2 of the arm mounting bracket, the inner plate 56.1 of the upper triangular arm mounting bracket and the outer plate 56.2 of the upper triangular arm mounting bracket are welded and connected.

The coil spring and shock absorber mounting bracket 4 includes a coil spring and shock absorber mounting bracket inner plate 4.1 welded to the upper wing surface of the inner plate 1.5, a coil spring and a shock absorber welded to the upper wing surface of the outer plate 1.6 The outer plate 4.2 of the mounting bracket, the inner plate 4.1 of the mounting bracket of the coil spring and shock absorber and the outer plate 4.2 of the mounting bracket of the coil spring and shock absorber are welded and connected.

The front elastic buffer block mounting bracket 9 includes the upper plate 9.1 of the front limit block of the rear suspension and the lower plate 9.2 of the front limit block of the rear suspension, the upper plate 9.1 of the front limit block of the rear suspension and the front limit block of the rear suspension The lower plate 9.2 of the positioning block is welded and connected; the thrust rod mounting bracket 10 is welded to the upper plate 9.1 of the front limiting block of the rear suspension.

The rear elastic buffer block mounting bracket 11 includes the upper plate 11.1 of the rear limit block of the rear suspension and the lower plate 11.2 of the rear limit block of the rear suspension, the upper plate 11.1 of the limit block of the rear suspension and the rear limit of the rear suspension 11.2 Welding connection of the lower plate of the bit block.

Claims (10)

1. a cross-country traveling ability offroad vehicle double cross arm independent suspension mounting structure, including longeron (1), the 3rd crossbeam (2) being connected with longeron (1) vertical welding respectively and the 4th crossbeam (3), it is characterized in that: described longeron (1) top airfoil is fixing connects helical spring and mounting bracket of shock absorber (4), mounting bracket (5) before upper Triangular Arm, mounting bracket (6) after upper Triangular Arm, after described upper Triangular Arm, mounting bracket (6) is positioned at before described helical spring and mounting bracket of shock absorber (4) and described upper Triangular Arm between mounting bracket (5)；Mounting bracket (7) before the lower Triangular Arm of the fixing connection in described 3rd crossbeam (2) end, mounting bracket (8) after the lower Triangular Arm of the fixing connection in described 4th crossbeam (3) end, the described forward and backward mounting bracket of lower Triangular Arm (7,8) is all in described longeron (1) lower section；Described longeron (1) lower surface is fixedly connected with front elastic buffer block mounting bracket (9), described front elastic buffer block mounting bracket (9) is positioned between the 3rd crossbeam (2) and the 4th crossbeam (3), and described front elastic buffer block mounting bracket (9) is provided with distance rod mounting bracket (10)；Described longeron (1) lower surface is additionally provided with rear elastic buffer block mounting bracket (11).

2. cross-country traveling ability offroad vehicle double cross arm independent suspension mounting structure according to claim 1, it is characterized in that: described longeron (1) lower surface is provided with local inner concave arcuate structure (1.1), described local inner concave arcuate structure (1.1) is positioned between described front elastic buffer block mounting bracket (9) and described 4th crossbeam (3).

3. cross-country traveling ability offroad vehicle double cross arm independent suspension mounting structure according to claim 1, it is characterised in that: described longeron (1) includes longeron variable cross-section section (1.4) of longitudinal beam front section (1.2), longeron back segment (1.3) and longitudinal beam connected leading portion (1.2) and longeron back segment (1.3)；Before described 3rd crossbeam (2), the 4th crossbeam (3), helical spring and mounting bracket of shock absorber (4), upper Triangular Arm, after mounting bracket (5) and upper Triangular Arm, mounting bracket (6) is arranged at described longeron back segment (1.3).

4. cross-country traveling ability offroad vehicle double cross arm independent suspension mounting structure according to claim 3, it is characterized in that: described longeron (1) includes the inner panel (1.5) and the outside plate (1.6) that weld together, the inside of the beam body that described inner panel (1.5) and outside plate (1.6) surround is hollow, being provided with reinforcement plate (1.7) in beam body, described reinforcement plate (1.7) is welded to connect with inner panel (1.5) inwall and outside plate (1.6) inwall.

5. cross-country traveling ability offroad vehicle double cross arm independent suspension mounting structure according to claim 4, it is characterized in that: described inner panel (1.5) includes the inner panel first paragraph (1.51) and the inner panel second segment (1.52) that are welded to connect, described inner panel first paragraph (1.51) and inner panel second segment (1.52) and is equipped with pad at longitudinal beam front section (1.2) and longeron variable cross-section section (1.4).

6. cross-country traveling ability offroad vehicle double cross arm independent suspension mounting structure according to claim 4, it is characterized in that: described reinforcement plate (1.7) includes inner panel reinforcement plate (1.71) and the waling (1.72) that overlap welding is connected together, described inner panel is strengthened plate (1.71) and is welded to connect with inner panel (1.5) inwall, and described waling (1.72) and outside plate (1.6) inwall are welded to connect.

7. cross-country traveling ability offroad vehicle double cross arm independent suspension mounting structure according to claim 6, it is characterized in that: described inner panel is strengthened plate (1.71) and included weld with described longeron back segment (1.3) inner panel of adaptation and strengthen plate back segment (1.73) and weld the inner panel of adaptation with longeron variable cross-section section (1.4) and strengthen plate variable cross-section section (1.74), and described inner panel reinforcement plate back segment (1.73) and inner panel reinforcement plate variable cross-section section (1.74) end, one end are welded to connect；Described waling (1.72) includes the waling back segment (1.75) adaptive with described longeron back segment (1.3) and welds the waling leading portion (1.76) of adaptation with longeron variable cross-section section (1.4) and longitudinal beam front section (1.2).

8. cross-country traveling ability offroad vehicle double cross arm independent suspension mounting structure according to claim 3, it is characterized in that: upper Triangular Arm mounting bracket outside plate (56.2) that before described upper Triangular Arm, after mounting bracket (5) and upper Triangular Arm, mounting bracket (6) all includes upper Triangular Arm mounting bracket inner panel (56.1) that is welded to connect with inner panel (1.5) top airfoil and outside plate (1.6) top airfoil is welded to connect, described upper Triangular Arm mounting bracket inner panel (56.1) and upper Triangular Arm mounting bracket outside plate (56.2) are welded to connect.

9. cross-country traveling ability offroad vehicle double cross arm independent suspension mounting structure according to claim 3, it is characterized in that: described helical spring and mounting bracket of shock absorber (4) include the helical spring that is welded to connect with inner panel (1.5) top airfoil and mounting bracket of shock absorber inner panel (4.1) and outside plate (1.6) top airfoil is welded to connect helical spring and mounting bracket of shock absorber outside plate (4.2), described helical spring and mounting bracket of shock absorber inner panel (4.1) and helical spring and mounting bracket of shock absorber outside plate (4.2) are welded to connect.

10. cross-country traveling ability offroad vehicle double cross arm independent suspension mounting structure according to claim 1, it is characterized in that: described front elastic buffer block mounting bracket (9) includes rear suspension front limit block upper plate (9.1) and rear suspension front limit block lower plate (9.2), and described rear suspension front limit block upper plate (9.1) and rear suspension front limit block lower plate (9.2) are welded to connect；Described distance rod mounting bracket (10) and described rear suspension front limit block upper plate (9.1) are welded to connect；Described rear elastic buffer block mounting bracket (11) includes after rear suspension limited block lower plate (11.2) after limited block upper plate (11.1) and rear suspension, and after described rear suspension, after limited block upper plate (11.1) and rear suspension, limited block lower plate (11.2) is welded to connect.