An independent suspension connection support structure for a multi-axle heavy-load hybrid chassis

Abstract

The present invention provides an independent suspension connection support structure of a multi-axle heavy-duty hybrid chassis, comprising a double wishbone support, a double wishbone support support beam, a double wishbone support tie rod, a rocker support, a rocker support support beam, an oil-gas spring support and an oil-gas spring support support beam; a double wishbone support is installed on the inner side of each longitudinal beam, and the double wishbone support is connected to the double wishbone through a pin shaft; the double wishbone support support beam is connected to the double wishbone support through a bolt; the double wishbone support tie rod is connected to the double wishbone support through a pin shaft; a rocker support is installed on the outer side of each longitudinal beam, and the rocker support is connected to the rocker through a support bearing; the two ends of the rocker support support beam are connected to the longitudinal beam and the rocker support through bolts; an oil-gas spring support is installed on the outer side of each longitudinal beam, and the oil-gas spring support is connected to one end of the oil-gas spring through a pin shaft, and the other end of the oil-gas spring is connected to the rocker through a pin shaft; the two ends of the oil-gas spring support support beam are respectively connected to the longitudinal beam and the oil-gas spring support through bolts.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts, and in particular to an independent suspension connection support structure of a multi-axle heavy-load hybrid power chassis. Background Art

[0002] Multi-axle means that the vehicle has more than two axles, heavy load means that the vehicle's axle load is not less than 10 tons, hybrid power generally refers to oil-electric hybrid power, that is, a mixture of fuel (gasoline, diesel, etc.) and electricity, chassis refers to the combination of four parts on the car, namely the transmission system, running system, steering system and braking system. It supports and installs the car engine and its components and assemblies, forms the overall shape of the car, withstands the engine power, and ensures normal driving.

[0003] Hybrid vehicles are driven by electric motors as auxiliary power to the engine. They have the characteristics of high energy utilization and low fuel consumption, which can effectively increase the vehicle's cruising range. Hybrid vehicles can also reduce the size of traditional vehicle engines, simplify the layout of the transmission system, and use the motor's high torque at low speed and constant power at high speed to improve the vehicle's starting acceleration ability and power. When necessary, they can act as a small power station to supply power to other electrical equipment.

[0004] Suspension is the general term for all force-transmitting connection devices between the frame (or load-bearing body) and the axle (or wheel) of a car. Its function is to transmit the force and torque acting between the wheel and the frame, to cushion the impact force transmitted to the frame or body by the uneven road surface, and to reduce the vibration caused by it, so as to ensure that the car can run smoothly.

[0005] Each wheel of the independent suspension is installed on the vehicle body or axle through a set of suspension. The axle adopts a disconnected type, and the middle section is fixed to the frame or body. This type of suspension does not affect the wheels on both sides when they are impacted. In addition, since the suspension is light in weight, it has strong buffering and shock absorption capabilities and is comfortable to ride. The disconnected axle can lower the engine position and the center of gravity of the vehicle; the wheel movement space is larger, which can reduce the suspension stiffness and improve the ride comfort.

[0006] The suspension connection support structure used to connect the automobile suspension and frame (or load-bearing body) and transfer loads needs to have the characteristics of high connection strength, high torsional strength and stable structure to meet the strength and stiffness requirements of the work.

[0007] In order to obtain sufficient strength and rigidity, the existing suspension connection support structure is mostly fixed to the frame, and the longitudinal and transverse beams are connected into a solid rigid frame by riveting or welding to ensure the overall torsional rigidity and load-bearing capacity of the frame. However, the rivets mainly bear shear force and are weak in bearing tension, which cannot meet the needs of heavy-loaded chassis. At the same time, welding defects are prone to occur in the welding structure, resulting in cracks in the welds of the complex stress-bearing parts responsible for connecting and supporting the suspension. Moreover, once the components of the welded structure are damaged, they cannot be quickly replaced and repaired.

[0008] The existing suspension connection support structure mainly has the following disadvantages:

[0009] 1. The weight is heavy and the integration of the suspension support structure makes it difficult to reduce weight.

[0010] 2. The installation is difficult. The supporting structure is huge after integration, and the installation requires larger tools to assist.

[0011] 3. Riveted structures are difficult to use in heavy-load environments.

[0012] 4. Welded structures are prone to welding defects during welding, and welds in complex stress areas are prone to cracking.

[0013] 5. The maintenance cost is high. If a component is damaged after integration, it needs to be replaced as a whole. Summary of the invention

[0014] In view of the defects existing in the prior art, the purpose of the present invention is to provide an independent suspension connection support structure for a multi-axle heavy-load hybrid chassis, modularize each supporting part, and facilitate disassembly and assembly, thereby solving the problems of difficult installation and high maintenance costs caused by the integration of the support structure.

[0015] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0016] An independent suspension connection support structure of a multi-axle heavy-duty hybrid chassis, comprising: a double wishbone support 1, a double wishbone support support beam 2, a double wishbone support tie rod 3, a rocker support 4, a rocker support support beam 5, an oil-gas spring support 6 and an oil-gas spring support support beam 7;

[0017] A double wishbone support 1 is installed on the inner side of each longitudinal beam 11, the side of the double wishbone support 1 is connected to the longitudinal beam 11 by bolts, and the upper and lower ends of the double wishbone support 1 are connected to the double wishbone 8 by pins;

[0018] The two ends of the double wishbone support beam 2 are respectively connected to the upper end of the double wishbone support 1 by bolts;

[0019] The two ends of the double wishbone support rod 3 are respectively connected to the lower end of the double wishbone support 1 through a pin shaft;

[0020] A rocker support 4 is installed on the outer side of each longitudinal beam 11, and the middle part of the rocker support 4 is connected to the rocker 9 through a support bearing;

[0021] The two ends of the rocker support beam 5 are respectively connected to the longitudinal beam 11 and the rocker support 4 by bolts;

[0022] The outer side of each longitudinal beam 11 is installed with an oil-gas spring support 6, the upper end of the oil-gas spring support 6 is connected to one end of the oil-gas spring 10 through a pin shaft, and the other end of the oil-gas spring 10 is connected to the rocker arm 9 through a pin shaft, and the pin holes at both ends of the oil-gas spring 10 are rod end joint bearings;

[0023] The two ends of the oil-gas spring support beam 7 are respectively connected to the longitudinal beam 11 and the side ends of the oil-gas spring support 6 by bolts.

[0024] On the basis of the above scheme, the double wishbone support 1 adopts a welded structure as a whole, which is composed of a bent bottom plate, a vertical plate supporting the double wishbone 8 and the double wishbone support rod 3, and a cover plate for dispersing the load.

[0025] On the basis of the above scheme, the double wishbone support beam 2 is a box-type structure composed of a cover plate and a vertical plate, with a reinforcing rib in the middle, bolt mounting holes at both ends, and square holes and round holes on the side to facilitate the installation of bolts and allow the wiring harness to pass through when necessary, thereby facilitating the layout of the chassis electronic control system.

[0026] On the basis of the above scheme, the double wishbone support tie rod 3 is composed of an intermediate sleeve and connectors at both ends. The connectors at both ends are connected to the intermediate sleeve by threads and are tightened by twisting the intermediate sleeve.

[0027] On the basis of the above scheme, the rocker arm support 4 is a grid-type structure composed of a plurality of reinforcing rib plates and a cover plate, a circular hole is provided in the middle for placing a supporting bearing, and the whole adopts a welded structure.

[0028] On the basis of the above scheme, the rocker arm support beam 5 is a box-shaped structure composed of a cover plate and a vertical plate, with bolt mounting holes at both ends.

[0029] On the basis of the above solution, the oil-gas spring support 6 is a grid-type structure composed of a plurality of reinforcing rib plates and cover plates, and the whole structure is welded.

[0030] On the basis of the above scheme, the oil and gas spring support beam 7 is a box-shaped structure composed of a cover plate and a vertical plate, with bolt mounting holes at both ends and a plurality of circular holes on the side.

[0031] Beneficial effects of the present invention:

[0032] The suspension connection support structure can be used to disassemble and process each support component, which is conducive to modular processing and reduces the processing scrap rate. Bolt connection is used for unified installation, which reduces the installation difficulty. When a component needs to be replaced, it is easy to disassemble and reduce the maintenance cost. It has the characteristics of high connection strength, high torsional strength and stable structure. At the same time, it has a light weight while meeting the strength and rigidity requirements of the work. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention has the following accompanying drawings:

[0034] Figure 1 Schematic diagram of the overall structure of the suspension connection support structure Figure 1 .

[0035] Figure 2 Schematic diagram of the overall structure of the suspension connection support structure Figure 2 .

[0036] Figure 3 Double wishbone support Figure 1 .

[0037] Figure 4 Double wishbone support Figure 2 .

[0038] Figure 5 Schematic diagram of double wishbone support beam Figure 1 .

[0039] Figure 6 Schematic diagram of double wishbone support beam Figure 2 .

[0040] Figure 7 Schematic diagram of the double wishbone support rod.

[0041] Figure 8 Rocker arm support Figure 1 .

[0042] Fig. 9 Rocker arm support Figure 2 .

[0043] Fig.10 Schematic diagram of rocker support beam Figure 1 .

[0044] Fig.11 Schematic diagram of rocker support beam Figure 2 .

[0045] Fig.12 Oil and gas spring support diagram Figure 1 .

[0046] Fig.13 Oil and gas spring support Figure 2 .

[0047] Fig.14 Schematic diagram of the support beam of the oil and gas spring support Figure 1 .

[0048] Fig.15 Schematic diagram of the support beam of the oil and gas spring support Figure 2 .

[0049] In the figure: 1 is a double wishbone support, 2 is a double wishbone support support beam, 3 is a double wishbone support rod, 4 is a rocker arm support, 5 is a rocker arm support support beam, 6 is an oil-gas spring support, 7 is an oil-gas spring support support beam, 8 is a double wishbone, 9 is a rocker arm, 10 is an oil-gas spring, and 11 is a longitudinal beam. DETAILED DESCRIPTION

[0050] The following is combined with Figure 1-15 The present invention is described in further detail.

[0051] The suspension connection support structure of the present invention is as follows Figure 1 , as shown in 2, it includes seven components: a double wishbone support 1, a double wishbone support support beam 2, a double wishbone support tie rod 3, a rocker arm support 4, a rocker arm support support beam 5, a gas spring support 6 and a gas spring support support beam 7.

[0052] A double wishbone support 1 is installed on the inner side of each longitudinal beam 11 , and the side surface of the double wishbone support 1 is connected to the longitudinal beam 11 by bolts, and the upper and lower ends of the double wishbone support 1 are connected to the double wishbone 8 by pins.

[0053] Both ends of the double wishbone support beam 2 are respectively connected to the upper end of the double wishbone support 1 by bolts.

[0054] The two ends of the double wishbone support rod 3 are respectively connected to the lower end of the double wishbone support 1 through a pin shaft.

[0055] A rocker support 4 is installed on the outer side of each longitudinal beam 11, and the middle part of the rocker support 4 is connected to the rocker 9 through a support bearing.

[0056] The two ends of the rocker support beam 5 are respectively connected to the longitudinal beam 11 and the rocker support 4 by bolts.

[0057] The outer side of each longitudinal beam 11 is installed on a gas spring support 6, the upper end of the gas spring support 6 is connected to one end of the gas spring 10 through a pin shaft, and the other end of the gas spring 10 is connected to the rocker arm 9 through a pin shaft, and the pin holes at both ends of the gas spring 10 are rod end joint bearings.

[0058] The two ends of the oil-gas spring support beam 7 are respectively connected to the longitudinal beam 11 and the side ends of the oil-gas spring support 6 by bolts.

[0059] 1. Double wishbone support

[0060] Design the double wishbone support 1 according to the structure, size and support requirements of the double wishbone 8, such as Figure 3 , 4 As shown. The double wishbone support 1 is a key component connecting the double wishbone 8 and the longitudinal beam 11, directly providing support for the double wishbone 8 and transferring the load to the longitudinal beam 11. The double wishbone support 1 as a whole adopts a welded structure, mainly consisting of a bent bottom plate, a vertical plate supporting the double wishbone 8 and the double wishbone support tie rod 3, and a cover plate for dispersing the load. The structure is designed according to the load transfer path, so that it not only has good load-bearing performance, but also has sufficient lightweight space, reducing the weight while ensuring the structural strength.

[0061] The double wishbone support 1 is connected to the longitudinal beam 11 and the double wishbone support support beam 2 by bolts, and is connected to the double wishbone support tie rod 3 by a pin shaft, which is convenient for disassembly and assembly. At the relative position of the two longitudinal beams 11, the left and right double wishbone supports 1 and the middle double wishbone support beam 2 and the double wishbone support tie rod 3 form a load-bearing circuit, which optimizes the load-bearing conditions and improves the overall rigidity and stability.

[0062] 2. Double wishbone support beam

[0063] Design the double wishbone support beam 2 according to the structure, size and support requirements of the double wishbone support 1, such as Figure 5 , 6 As shown. The two ends of the double wishbone support beam 2 are connected to the left and right double wishbone supports 1 by bolts, and can support the main components of the car at the same time. The shape of the upper bearing surface can be changed according to the load. The component consists of a cover plate and a vertical plate to form a box-shaped structure, with a reinforcing rib plate in the middle, which has good load-bearing performance and sufficient lightweight space. Bolt mounting holes are opened at both ends, and sufficient space is provided on the side to facilitate the installation of bolts. If necessary, the wiring harness can also pass through to facilitate the layout of the chassis electronic control system.

[0064] 3. Double wishbone support rod

[0065] Design the double wishbone support rod 3 according to the structure, size and support requirements of the double wishbone support 1, such as Figure 7 The double wishbone support rod 3 is composed of an intermediate sleeve and connectors at both ends, both ends of which are connected to the double wishbone support 1 through pins, and the connectors at both ends are threadedly connected to the intermediate sleeve and are tightened by twisting the intermediate sleeve.

[0066] 4. Rocker arm support

[0067] The rocker arm support 4 is designed according to the structure, size and support requirements of the rocker arm 9, such as Figure 8 , 9As shown. The rocker support 4 is connected to the longitudinal beam 11 by bolts, and is responsible for supporting the rocker 9 and transferring its load to the longitudinal beam 11. The circular hole in the middle can be used to place the support bearing. The rocker support 4 adopts a welded structure, which consists of multiple reinforcing ribs and cover plates to form a highly rigid grid structure with good load-bearing performance.

[0068] 5. Rocker support beam

[0069] Design the rocker support support beam 5 according to the structure, size and support requirements of the rocker support 4, such as Fig.10 , 11 As shown. The two ends of the rocker support beam 5 are connected to the longitudinal beam 11 by bolts, which further disperses the load transferred from the rocker support 4 to the longitudinal beam 11 and maintains the overall rigidity. The box-shaped structure composed of the cover plate and the vertical plate has good load-bearing performance and sufficient lightweight space.

[0070] 6. Oil and gas spring support

[0071] The oil-gas spring support 6 is designed according to the structure, size and support requirements of the oil-gas spring 10, such as Fig.12 , 13 The oil-gas spring support 6 is connected to the oil-gas spring 10 through a pin shaft and connected to the longitudinal beam 11 through bolts. It is responsible for supporting the oil-gas spring 10 and transferring its load to the longitudinal beam 11. The oil-gas spring support 6 adopts a welded structure, which is composed of a plurality of reinforcing rib plates and a cover plate to form a highly rigid grid-type structure. The structure has good load-bearing performance and can bear the huge load at the oil-gas spring 10.

[0072] 7. Oil and gas spring support beam

[0073] Design the oil-gas spring support support beam 7 according to the structure, size and support requirements of the oil-gas spring support 6, such as Fig.14 , 15 As shown. The two ends of the oil and gas spring support beam 7 are connected to the longitudinal beam 11 by bolts, which further disperses the load transferred from the oil and gas spring support 6 to the longitudinal beam 11 and maintains the overall rigidity. The box-shaped structure composed of the cover plate and the vertical plate has good load-bearing performance and sufficient lightweight space.

[0074] The key technical points and points to be protected of the present invention are:

[0075] 1. Structural characteristics and effects of each connecting support component.

[0076] 2. The connection method between each connecting support component.

[0077] 3. A load-bearing circuit consisting of a double wishbone support 1, a double wishbone support support beam 2 and a double wishbone support tie rod 3.

[0078] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. An independent suspension connection support structure of a multi-axle heavy-duty hybrid chassis, characterized by comprising: Double wishbone support (1), double wishbone support support beam (2), double wishbone support tie rod (3), rocker arm support (4), rocker arm support support beam (5), oil-gas spring support (6) and oil-gas spring support support beam (7); A double wishbone support (1) is installed on the inner side of each longitudinal beam (11), the side surface of the double wishbone support (1) is connected to the longitudinal beam (11) by bolts, and the upper and lower ends of the double wishbone support (1) are connected to the double wishbone (8) by pins; The two ends of the double wishbone support beam (2) are respectively connected to the upper end of the double wishbone support (1) by bolts; The two ends of the double wishbone support rod (3) are respectively connected to the lower end of the double wishbone support (1) via a pin shaft; A rocker arm support (4) is installed on the outer side of each longitudinal beam (11), and the middle part of the rocker arm support (4) is connected to the rocker arm (9) through a support bearing; The two ends of the rocker support beam (5) are respectively connected to the longitudinal beam (11) and the rocker support (4) by bolts; An oil-gas spring support (6) is mounted on the outer side of each longitudinal beam (11); the upper end of the oil-gas spring support (6) is connected to one end of the oil-gas spring (10) via a pin shaft, and the other end of the oil-gas spring (10) is connected to the rocker arm (9) via a pin shaft; The two ends of the oil and gas spring support beam (7) are respectively connected to the longitudinal beam (11) and the side end of the oil and gas spring support (6) by bolts.

2. The independent suspension connection support structure of a multi-axle heavy-duty hybrid chassis as claimed in claim 1, characterized in that: The double wishbone support (1) is an overall welded structure, and is composed of a bent bottom plate, a vertical plate supporting the double wishbone (8) and the double wishbone support tie rod (3), and a cover plate for dispersing the load.

3. The independent suspension connection support structure of a multi-axle heavy-duty hybrid chassis as claimed in claim 1, characterized in that: The double wishbone support beam (2) is a box-shaped structure consisting of a cover plate and a vertical plate, with a reinforcing rib plate in the middle, bolt mounting holes at both ends, and square holes and round holes on the side to facilitate the installation of bolts, enable the wiring harness to pass through, and facilitate the layout of the chassis electronic control system.

4. The independent suspension connection support structure of a multi-axle heavy-duty hybrid chassis as claimed in claim 1, characterized in that: The double wishbone support rod (3) is composed of an intermediate sleeve and connectors at both ends. The connectors at both ends are connected to the intermediate sleeve using threads and are tightened by twisting the intermediate sleeve.

5. The independent suspension connection support structure of a multi-axle heavy-duty hybrid chassis as claimed in claim 1, characterized in that: The rocker arm support (4) is a grid-type structure composed of a plurality of reinforcing rib plates and a cover plate, a circular hole is provided in the middle for placing a support bearing, and the whole adopts a welded structure.

6. The independent suspension connection support structure of a multi-axle heavy-duty hybrid chassis as claimed in claim 1, characterized in that: The rocker arm support beam (5) is a box-shaped structure consisting of a cover plate and a vertical plate, with bolt mounting holes opened at both ends.

7. The independent suspension connection support structure of a multi-axle heavy-duty hybrid chassis as claimed in claim 1, characterized in that: The oil-gas spring support (6) is a grid-type structure composed of a plurality of reinforcing rib plates and a cover plate, and the entire structure is welded.

8. The independent suspension connection support structure of a multi-axle heavy-duty hybrid chassis as claimed in claim 1, characterized in that: The oil and gas spring support beam (7) is a box-shaped structure consisting of a cover plate and a vertical plate, with bolt mounting holes at both ends and a plurality of circular holes on the side.

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