Narrow-body new energy light truck cab suspension system

Abstract

The invention discloses a cab suspension system of a narrow-body new energy light truck, and relates to the technical field of cab suspension. The suspension device comprises a cross beam and suspension mechanisms symmetrically arranged at the two ends of the cross beam, each suspension mechanism comprises a beam body, a swing arm and a shock absorber assembly, each beam body comprises an arc-shaped plate, rib edges are arranged on the two side edges of the outer surface of each arc-shaped plate, a sleeve is integrally arranged at the top end of each arc-shaped plate, and a connecting edge of an I-shaped structure is integrally arranged on the peripheral side face of each sleeve. A supporting lug part is arranged on the rib edge of the bottom end of the arc-shaped plate piece, and the swing arm is composed of a set of symmetrically-arranged side plates. The arc-shaped plates and the rib edges form the beam body, the two side plates form the swing arm and the hydraulic lock mounting position, the U-shaped steel serves as the cross beam, supporting and connecting mechanisms of all the parts are thin, the structural strength is guaranteed, meanwhile, the weight of all the parts is reduced, the purpose of light weight is achieved, the weight of the suspension system is reduced, and the cost is reduced. Therefore, the endurance mileage and the energy efficiency of the vehicle are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cab suspension, and in particular relates to a cab suspension system for a narrow-body new energy light truck. Background Art

[0002] The cruising range is the focus of pure electric heavy trucks, and lightweighting of the entire vehicle is an effective solution. As for the cab suspension, due to its space limitations, the existing suspension system may not be suitable or be too heavy, which will affect the cruising range and energy efficiency of new energy vehicles. In addition, since the suspension system needs to support the cab, it needs to have certain strength requirements.

[0003] Therefore, designing a suspension system that is strong enough and lightweight is a problem that needs to be solved by those skilled in the art. Summary of the invention

[0004] The object of the present invention is to provide a narrow-body new energy light truck cab suspension system, in which a beam body is composed of an arc-shaped plate and a rib edge, a swing arm and a hydraulic lock mounting position are composed of two side plates, and a U-shaped steel is used as a crossbeam. The supporting and connecting mechanisms of each part are relatively thin, which ensures the structural strength while reducing the weight of each component, thereby achieving the purpose of lightweighting, reducing the weight of the suspension system, and thus improving the vehicle's cruising range and energy efficiency.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a narrow-body new energy light truck cab suspension system, comprising a crossbeam and a suspension mechanism symmetrically arranged at both ends of the crossbeam; The suspension mechanism comprises a beam body, a swing arm and a shock absorber assembly; The beam body comprises an arc-shaped plate, both sides of the outer surface of the arc-shaped plate are provided with ribs, the top of the arc-shaped plate is integrally provided with a sleeve, the peripheral side of the sleeve is integrally provided with an I-shaped connecting edge, and the ribs at the bottom of the arc-shaped plate are provided with a supporting ear; The swing arm is composed of a group of symmetrically arranged side plates, and the side plates are composed of a support ear section, an outward expansion section and a lock seat section. The bottom edge of the lock seat section is integrally provided with a connecting section, and a plurality of seat plates are fixed between the two connecting sections. The ear sections of the two side plates are respectively located at both ends of the sleeve and are rotatably connected to the sleeve by fastening bolts. A hydraulic lock is fixed between the lock seat sections of the two side plates and the seat plate. The distance between the outward expansion sections of the two side plates increases in sequence from the hydraulic lock to the sleeve. The bottom end of the shock absorber assembly is rotatably connected to the support ear portion at the bottom end of the beam body through a lower bolt, and the top end of the shock absorber assembly is rotatably connected to the outer end portion between the connecting sections on the two side plates through an upper bolt; A height valve is fixed on the outside of the beam body, an upper bracket is fixed at the position of the upper bolt, and an adjusting rod is connected between the outside of the upper bracket and the height valve; The cross beam is a U-shaped beam structure with the open side facing downwards, and the two ends of the cross beam are respectively covered on the connecting edges of the two suspension mechanisms and are fixed to the connecting edges by fasteners.

[0006] Furthermore, both ends of the cross beam are connected with flared ends through a transition section, and the flared ends are sleeved on the connecting edge and fixed to the connecting edge.

[0007] Furthermore, the arc-shaped plate is provided with a plurality of mounting holes and mounting positions, and the arc-shaped plate is provided with a clearance hole opposite to the shock absorber assembly and the hydraulic lock, and the clearance hole is misaligned with the mounting hole and the mounting position.

[0008] Furthermore, the installation position is a block or column structure, the installation position is integrally formed with the arc-shaped plate, a blind opening is provided on the installation position, and the height valve is connected to the beam body through a fastener and the blind opening.

[0009] Furthermore, a plurality of inwardly concave ribs are provided on the outwardly expanded section of the side panel, and an inner folding edge is provided at the outer edge of the side panel.

[0010] Furthermore, the adjusting rod comprises a double-headed screw, both ends of which are threadedly connected with sleeve rods, and the two sleeve ends are respectively connected to the upper bracket and the height valve through ball connectors.

[0011] Furthermore, the upper bracket is a U-shaped seat, and one side of the upper bracket is fixed between the outer side of the connecting section and the nut of the upper bolt.

[0012] Furthermore, the two sides of the connecting edge are respectively fitted with the two inner sides of the flared end, and a gap is formed between the top of the connecting edge and the top edge of the flared end.

[0013] Furthermore, a plurality of positioning openings are provided on the connecting sections of the side panels, and protrusions cooperating with the positioning openings are provided on both sides of the seat panel.

[0014] Furthermore, the beam body, the swing arm and the cross beam are all made of aluminum alloy material.

[0015] The present invention has the following beneficial effects: 1. The present invention forms a beam body through arc-shaped plates and rib edges, forms a swing arm and a hydraulic lock installation position through two side plates, and uses U-shaped steel as a crossbeam. The supporting and connecting mechanisms of each part are relatively thin, which ensures the structural strength while reducing the weight of each component, achieving the purpose of lightweighting, reducing the weight of the suspension system, and thus improving the vehicle's cruising range and energy efficiency.

[0016] 2. The present invention integrates the beam body, swing arm and shock absorber assembly into one. The connection of the crossbeam does not affect its stability and integrity. It can be installed, dismantled, transported and stored as a whole, thereby realizing a modular design of the suspension system, which is convenient for maintenance and replacement. It also makes the manufacturing and assembly process more flexible and efficient, and can adjust crossbeams of different lengths to adapt to vehicle models of different widths, thereby improving the scope of application.

[0017] 3. The present invention designs an arc-shaped sheet metal as the main body of the beam, which can be suitable for use in a light truck cab and a narrow space. In a limited space, the use of a simplified guide mechanism and a sophisticated support mechanism can significantly improve driving comfort.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of a narrow-body new energy light truck cab suspension system of the present invention; Figure 2 is a structural schematic diagram of the suspension mechanism; Figure 3 It is the structural schematic diagram of the beam body; Figure 4 It is a structural schematic diagram of the swing arm and the hydraulic lock; In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1-crossbeam, 2-beam body, 3-swing arm, 4-shock absorber assembly, 5-hydraulic lock, 6-height valve, 101-transition section, 102-flared end, 201-arc plate, 202-rib edge, 203-sleeve, 204-connecting edge, 205-support ear, 206-mounting hole, 207-mounting position, 208-allowance hole, 301-side plate, 302-support ear section, 303-outward expansion section, 304-lock seat section, 305-connecting section, 306-seat plate, 307-rib, 308-inner folding edge, 309-positioning port, 310-protrusion, 401-lower bolt, 402-upper bolt, 403-upper bracket, 404-adjusting rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-4 As shown, the present invention is a narrow-body new energy light truck cab suspension system, comprising a crossbeam 1 and suspension mechanisms symmetrically arranged at both ends of the crossbeam 1; The suspension mechanism includes a beam body 2, a swing arm 3 and a shock absorber assembly 4; The beam body 2 includes an arc-shaped plate 201, and both sides of the outer surface of the arc-shaped plate 201 are provided with rib edges 202. The top of the arc-shaped plate 201 is integrally provided with a sleeve 203, and the side surface of the sleeve 203 is integrally provided with an I-shaped connecting edge 204. The rib edge 202 at the bottom end of the arc-shaped plate 201 is provided with a supporting ear portion 205. The swing arm 3 is composed of a group of symmetrically arranged side plates 301, which are composed of a support ear section 302, an outward expansion section 303 and a lock seat section 304. The bottom edge of the lock seat section 304 is integrally provided with a connecting section 305, and a plurality of seat plates 306 are fixed between the two connecting sections 305; The ear sections 302 of the two side plates 301 are respectively located at both ends of the sleeve 203 and are rotatably connected to the sleeve 203 by fastening bolts. A hydraulic lock 5 is fixed between the lock seat section 304 and the seat plate 306 of the two side plates 301. The distance between the outer expansion sections 303 on the two side plates 301 increases in sequence from the hydraulic lock 5 to the sleeve 203. The bottom end of the shock absorber assembly 4 is rotatably connected to the support ear portion 205 at the bottom end of the beam body 2 through a lower bolt 401, and the top end of the shock absorber assembly 4 is rotatably connected to the outer end between the connecting sections 305 on the two side plates 301 through an upper bolt 402; A height valve 6 is fixed on the outside of the beam body 2, an upper bracket 403 is fixed at the position of the upper bolt 402, and an adjusting rod 404 is connected between the outside of the upper bracket 403 and the height valve 6; The cross beam 1 is a U-shaped beam structure with the open side facing downwards. Both ends of the cross beam 1 are respectively covered on the connecting edges 204 of the two suspension mechanisms and are fixed to the connecting edges 204 by fasteners.

[0023] Among them Figure 1 As shown, both ends of the beam 1 are connected to flared ends 102 through transition sections 101 , and the flared ends 102 are sleeved on the connecting edge 204 and fixed to the connecting edge 204 .

[0024] Among them Figure 1-3As shown, the arc plate 201 is provided with a plurality of mounting holes 206 and mounting positions 207 , and the arc plate 201 is provided with a clearance hole 208 opposite to the shock absorber assembly 4 and the hydraulic lock 5 , and the clearance hole 208 is offset from the mounting holes 206 and the mounting positions 207 .

[0025] Among them Figure 1-3 As shown, the mounting position 207 is a block or column structure, the mounting position 207 and the arc-shaped plate 201 are integrally formed, a blind opening is provided on the mounting position 207, and the height valve 6 is connected to the beam body 2 through fasteners and the blind opening.

[0026] Among them Figure 1-2 and Figure 4 As shown, a plurality of concave ribs 307 are provided on the outward expansion section 303 of the side plate 301 , and an inner folded edge 308 is provided at the outer edge of the side plate 301 .

[0027] Among them Figure 1-2 As shown, the adjusting rod 404 includes a double-headed screw, both ends of which are threadedly connected with sleeve rods, and the ends of the two sleeves 203 are respectively connected to the upper bracket 403 and the height valve 6 through ball connectors.

[0028] Among them Figure 1-2 As shown, the upper bracket 403 is a U-shaped seat, and one side of the upper bracket 403 is fixed between the outer side of the connecting section 305 and the nut of the upper bolt 402 .

[0029] Among them Figure 1 As shown, the two sides of the connecting edge 204 are respectively fitted with the two inner sides of the flared end 102 , and a gap is formed between the top of the connecting edge 204 and the top edge of the flared end 102 .

[0030] Among them Figure 4 As shown, a plurality of positioning holes 309 are provided on the connecting section 305 of the side plate 301 , and protrusions 310 cooperating with the positioning holes 309 are provided on both sides of the seat plate 306 .

[0031] Among them, the beam body 2, the swing arm 3 and the cross beam 1 are all made of aluminum alloy material.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A narrow-body new energy light truck cab suspension system, characterized by: It comprises a crossbeam (1) and a suspension mechanism symmetrically arranged at two ends of the crossbeam (1); The suspension mechanism comprises a beam body (2), a swing arm (3) and a shock absorber assembly (4); The beam body (2) comprises an arc-shaped plate member (201), both sides of the outer surface of the arc-shaped plate member (201) are provided with rib edges (202), a sleeve (203) is integrally provided at the top of the arc-shaped plate member (201), a connecting edge (204) of an I-shaped structure is integrally provided on the peripheral side of the sleeve (203), and a supporting ear portion (205) is provided on the rib edge (202) at the bottom end of the arc-shaped plate member (201); The swing arm (3) is composed of a group of symmetrically arranged side plates (301), the side plates (301) are composed of a support ear section (302), an outward expansion section (303) and a lock seat section (304), the bottom edge of the lock seat section (304) is integrally provided with a connecting section (305), and a plurality of seat plates (306) are fixed between the two connecting sections (305); The ear sections (302) of the two side plates (301) are respectively located at two ends of the sleeve (203) and are rotatably connected to the sleeve (203) via fastening bolts; a hydraulic lock (5) is fixed between the lock seat sections (304) and the seat plate (306) of the two side plates (301); and the distance between the outer expansion sections (303) of the two side plates (301) increases in sequence from the hydraulic lock (5) to the sleeve (203); The bottom end of the shock absorber assembly (4) is rotatably connected to the support ear portion (205) at the bottom end of the beam body (2) via a lower bolt (401), and the top end of the shock absorber assembly (4) is rotatably connected to the outer end portion between the upper connecting sections (305) of the two side plates (301) via an upper bolt (402); A height valve (6) is fixed on the outside of the beam body (2), an upper bracket (403) is fixed at the position of the upper bolt (402), and an adjustment rod (404) is connected between the outside of the upper bracket (403) and the height valve (6); The crossbeam (1) is a U-shaped beam structure with the open side facing downwards, and the two ends of the crossbeam (1) respectively cover the connecting edges (204) of the two suspension mechanisms and are fixed to the connecting edges (204) via fasteners.

2. A narrow-body new energy light truck cab suspension system according to claim 1, characterized in that: Both ends of the crossbeam (1) are connected to flared ends (102) via transition sections (101); the flared ends (102) are sleeved on the connecting edge (204) and fixed to the connecting edge (204).

3. The narrow-body new energy light truck cab suspension system according to claim 1 is characterized in that: The arc-shaped plate (201) is provided with a plurality of mounting holes (206) and mounting positions (207), and the arc-shaped plate (201) is provided with a clearance hole (208) opposite to the shock absorber assembly (4) and the hydraulic lock (5), and the clearance hole (208) is misaligned with the mounting hole (206) and the mounting position (207).

4. A narrow-body new energy light truck cab suspension system according to claim 3, characterized in that: The mounting position (207) is a block or column structure, the mounting position (207) and the arc-shaped plate (201) are integrally formed, a blind opening is provided on the mounting position (207), and the height valve (6) is connected to the beam body (2) via a fastener and the blind opening.

5. The narrow-body new energy light truck cab suspension system according to claim 1 is characterized in that: A plurality of inwardly concave ribs (307) are provided on the outwardly expanded section (303) of the side plate (301), and an inner folding edge (308) is provided at the outer edge of the side plate (301).

6. The narrow-body new energy light truck cab suspension system according to claim 1, characterized in that: The adjusting rod (404) comprises a double-headed screw, both ends of which are threadedly connected to sleeve rods, and the ends of the two sleeves (203) are respectively connected to the upper bracket (403) and the height valve (6) through ball connectors.

7. The narrow-body new energy light truck cab suspension system according to claim 1 is characterized in that: The upper bracket (403) is a U-shaped seat, and one side of the upper bracket (403) is fixed between the outer side of the connecting section (305) and the nut of the upper bolt (402).

8. The narrow-body new energy light truck cab suspension system according to claim 1 is characterized in that: The two sides of the connecting edge (204) are respectively fitted with the two inner sides of the flared end (102), and a gap is formed between the top of the connecting edge (204) and the top edge of the flared end (102).

9. The narrow-body new energy light truck cab suspension system according to claim 1, characterized in that: A plurality of positioning openings (309) are provided on the connecting section (305) of the side plate (301), and protrusions (310) matching with the positioning openings (309) are provided on both sides of the seat plate (306).

10. The narrow-body new energy light truck cab suspension system according to claim 1, characterized in that: The beam body (2), the swing arm (3) and the cross beam (1) are all made of aluminum alloy material.

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