An independent suspension

Abstract

An independent suspension relates to the field of suspension technology. The technical solution comprises two frame longitudinal beams connected by a crossbeam, with suspension assemblies fixed to opposite sides of the two frame longitudinal beams. The suspension assembly comprises an elastic component, a transverse arm support, and a longitudinal arm support. The transverse arm support and the longitudinal arm support are located on either side of the elastic component. The transverse arm support is provided with a transverse arm assembly, and the transverse arm assembly is provided with a transverse arm ball head. The beneficial effects of this technical solution are: achieving vertical jump of the tire, maintaining unchanged wheel alignment parameters, wheelbase, and wheelbase. When the vehicle body rolls, the tire remains substantially perpendicular to the ground, effectively reducing tire wear, providing stable straight-line driving capability, obtaining a greater ultimate lateral force, and improving vehicle handling stability. The technical solution can also be applied to different frames, expanding its scope of use.

Description

Technical Field

[0001] The present invention relates to the technical field of independent suspension, in particular to an independent suspension. Background Art

[0002] The suspension consists of three parts: elastic elements, shock absorbers and guide mechanisms. It is an important component of modern cars. Its main task is to transmit force and torque between the wheels and the frame, alleviate the impact load on the frame or body caused by uneven road surface, control the movement of the wheels, and ensure that the car has the required smoothness and handling stability.

[0003] Double wishbone independent suspension and its deformable mechanism are widely used technologies. When the wheels move up and down, the wheel alignment parameters and track width change, causing wheel wear and affecting straight-line stability. When the vehicle rolls or turns, the contact surface between the wheel and the ground deteriorates, reducing the maximum lateral force and degrading the vehicle's handling stability.

[0004] Application No.: 201110302310.5 discloses a transverse leaf spring automobile independent suspension, which includes a shock absorber and a leaf spring, the shock absorber including an oil reservoir cylinder, a piston rod slidably inserted in the oil reservoir cylinder along the axis of the oil reservoir cylinder, one end of the piston rod extending out of the oil reservoir cylinder, the end of the piston rod extending out of the oil reservoir cylinder being movably connected to the leaf spring, a piston fixedly connected to the middle of the piston rod, the piston dividing the cavity in the oil reservoir cylinder into two sealed cavities, an upper and a lower cavity, two one-way throttle valves for connecting the upper and lower cavities are provided on the piston, and the conducting directions of the two one-way throttle valves are opposite. The elastic element, the shock absorber and the guide mechanism constitute the suspension. During use, the wheel only moves up and down relative to the frame without lateral slippage, thereby ensuring wheel positioning and avoiding the problem of severe tire wear, thereby ensuring the service life of the tire.

[0005] This patent improves the combination of elastic elements and shock absorbers. When used, it can only be used on the corresponding guide mechanism and cannot be used on other guide mechanisms, so improvements are needed. Summary of the Invention

[0006] The purpose of the present invention is to overcome the current shortcomings and propose an independent suspension.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An independent suspension includes two frame longitudinal beams, which are connected by a cross beam. A suspension assembly is fixed on the opposite sides of the two frame longitudinal beams. The suspension assembly includes an elastic component, a cross arm support and a longitudinal arm support. The cross arm support and the longitudinal arm support are located on both sides of the elastic component. A cross arm component is provided on the cross arm support, and a cross arm ball head is provided on the cross arm component. A longitudinal arm component is provided on the longitudinal arm support, and a longitudinal arm ball head is provided on the longitudinal arm component.

[0009] The setting of the longitudinal arm assembly and the transverse arm assembly realizes the vertical up and down jump of the tire, effectively reduces tire wear and improves the vehicle's handling stability.

[0010] Preferably, the cross arm assembly includes a cross arm swing arm hinged on the cross arm support, a connecting frame is fixed to the end of the cross arm swing arm away from the cross arm support, a cross arm is hinged on the connecting frame, and a cross arm ball head is fixed to the end of the cross arm away from the connecting frame; the longitudinal arm assembly includes a longitudinal arm swing arm hinged on the lower end of the longitudinal arm support, a longitudinal arm is hinged on the longitudinal arm swing arm, the lower end of the elastic assembly is hinged on the longitudinal arm, and the longitudinal arm ball head is fixed to the end of the longitudinal arm away from the longitudinal arm swing arm.

[0011] Preferably, the longitudinal arm includes a connecting rod, which is a straight rod. The middle part of the connecting rod extends to one side to form a mounting frame, and the lower end of the elastic component is hinged to the mounting frame; the two ends of the connecting rod are respectively fixed with a connecting block and a fixed block, the connecting block is connected to the longitudinal arm swing arm through the longitudinal arm pin shaft, and the longitudinal arm ball head is fixed on the fixed block.

[0012] The setting of the trailing arm facilitates the connection with the trailing arm swing arm and the trailing arm ball head.

[0013] Preferably, the longitudinal arm includes a long side, two longitudinal arm supports are provided, the two ends of the long side are respectively hinged to the longitudinal arm swing arms at the lower ends of the two longitudinal arm supports, one end of the long side is fixed with a first short side, the end of the first short side away from the long side is fixed with a fixed block, the longitudinal arm ball head is fixed on the fixed block, one end of the fixed block is fixed with a second short side, a mounting bracket is fixed between the second short side and the long side, and the lower end of the elastic component is hinged to the mounting bracket.

[0014] The transverse arm assembly is located in the middle of the two longitudinal arm assemblies, which improves the load-bearing capacity of the suspension.

[0015] Preferably, a reinforcing rib is connected between the fixing block and the long side.

[0016] Preferably, the elastic component includes a spring upper support, which is hinged to an upper sleeve through a spring upper fixed pin, and a lower sleeve is sleeved on the lower end of the upper sleeve. The upper sleeve and the lower sleeve are connected by a spring, and the lower sleeve is hinged to the mounting frame through a lower sleeve pin.

[0017] The elastic component is connected to the trailing arm to reduce the vibration of the wheel.

[0018] Preferably, two transverse arm supports are provided, and the two transverse arm supports are respectively located on both sides of the longitudinal arm support and the elastic component. The upper end of the longitudinal arm support is hinged with the longitudinal arm swing arm, and the longitudinal arm is hinged on the longitudinal arm swing arm. The longitudinal arm ball head is fixed at the end of the longitudinal arm away from the longitudinal arm swing arm, and the lower end of the elastic component is connected to the transverse arm assembly.

[0019] According to the different vehicles used, the positions of the longitudinal arm assembly and the cross arm assembly are adjusted, and the position of the cross arm support is increased so that the cross arm assembly is set at the bottom and the longitudinal arm assembly is set at the top. It is suitable for different vehicles and at the same time improves the load-bearing capacity of the suspension.

[0020] Preferably, the cross arm assembly includes a cross arm swing arm hinged on the cross arm support, a connecting frame is fixed to the end of the cross arm swing arm away from the cross arm support, a double support cross arm is hinged on the two connecting frames, a cross arm ball head is provided at the end of the double support cross arm away from the connecting frame, and a spring lower mounting support is fixed on the double support cross arm.

[0021] The double-support cross arm setting can connect the two cross arm components and be set according to the different frames during use.

[0022] Preferably, the elastic component includes a spring upper support, which is hinged with an upper sleeve through a spring upper fixed pin, and a lower sleeve is sleeved on the lower end of the upper sleeve. The upper sleeve and the lower sleeve are connected by a spring, and the lower sleeve is hinged to the spring lower mounting support through a lower sleeve pin.

[0023] Preferably, the connecting frame is connected to the wheel side tie rod via a connecting ball head.

[0024] Compared with the prior art, the beneficial effects of the present invention are: achieving the up and down vertical jump of the tire, the wheel alignment parameters remain unchanged, the wheelbase and the wheelbase remain unchanged, and when the vehicle body rolls, the tire basically remains perpendicular to the ground, effectively reducing tire wear, having stable straight-line driving ability, obtaining a greater ultimate lateral force, and improving the vehicle's handling stability. At the same time, it can be applied to different frames, increasing the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention.

[0027] Figure 2 It is a front view of a specific embodiment of the present invention.

[0028] Figure 3 It is a side view of a specific embodiment of the present invention.

[0029] Figure 4 It is a bottom view of a specific embodiment of the present invention.

[0030] Figure 5 Schematic diagram of the structure of the trailing arm in a specific embodiment of the present invention.

[0031] Figure 6 Schematic diagram of the structure of the trailing arm in Example 2 of the present invention.

[0032] Figure 7 This is a schematic structural diagram of the double support cross arm in Example 3 of the present invention.

[0033] In the figure: 1 elastic component, 2 suspension assembly, 3 frame longitudinal beam, 4 cross beam, 5 longitudinal arm support, 6 longitudinal arm swing arm pin, 7 longitudinal arm swing arm, 8 anti-rotation block, 9 longitudinal arm pin, 10 longitudinal arm, 11 longitudinal arm ball head, 12 lower sleeve pin, 13 spring upper support, 14 spring upper fixed pin, 15 upper sleeve, 16 cross arm, 17 cross arm ball head, 18 wheel side tie rod, 19 cross arm pin, 20 cross arm swing arm, 21 cross arm swing arm pin, 22 cross arm support, 23 double support cross arm, 24 spring lower mounting support, 25 connecting frame, 101 mounting frame, 102 connecting block, 103 fixing block, 104 connecting rod, 105 long side, 106 first short side, 107 second short side. DETAILED DESCRIPTION

[0034] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0035] Example 1

[0036] Reference Figure 1-7, an independent suspension, including two frame longitudinal beams 3, the two frame longitudinal beams 3 are connected by a cross beam 4, the cross beam 4 enhances the rigidity of the frame, and ensures that the force and torque can be effectively transmitted between the frame and the suspension, and the two frame longitudinal beams 3 are fixed on the opposite sides of the two frame longitudinal beams 3. The suspension assembly 2 includes an elastic component 1, a transverse arm support 22 and a longitudinal arm support 5. The transverse arm support 22 and the longitudinal arm support 5 are located on both sides of the elastic component 1, and a transverse arm assembly is provided on the transverse arm support 22, and a transverse arm ball head 17 is provided on the transverse arm assembly. The longitudinal arm support 5 is provided with a longitudinal arm assembly, and a longitudinal arm ball head 11 is provided on the longitudinal arm assembly. The arrangement of the longitudinal arm assembly and the transverse arm assembly realizes the up and down vertical jump of the tire, effectively reduces tire wear, and improves the vehicle handling stability.

[0037] Reference Figure 1-5 The cross arm assembly includes a cross arm swing arm 20 hinged on the cross arm support 22. The cross arm swing arm 20 is connected to the cross arm support 22 through a cross arm swing arm pin 21 to prevent the cross arm swing arm pin 21 from rotating. An anti-rotation block is fixed to the outside of the cross arm support 22 by bolts to limit the cross arm swing arm pin 21. A connecting frame 25 is fixed to the end of the cross arm swing arm 20 away from the cross arm support 22. The connecting frame 25 is connected to the wheel side pull rod 18 through a connecting ball head. The center of the connecting sphere is on the extension line of the axis of the cross arm pin 19. A cross arm 16 is hinged on the connecting frame. The cross arm 16 is hinged to the connecting frame 25 through the cross arm pin 19. The cross arm ball head 17 is fixed to the end of the cross arm 16 away from the connecting frame 25. The transverse arm swing arm 20 and the transverse arm 16 rotate relative to each other, changing the angle between the two, thereby changing the straight-line distance between the transverse arm assembly frame connection point and the wheel connection point, and the distance between the two points changes during the up and down bouncing of the wheel; the longitudinal arm assembly includes a longitudinal arm swing arm 7 hinged at the lower end of the longitudinal arm support 5, and a longitudinal arm 10 is hinged on the longitudinal arm swing arm 7. The lower end of the elastic component 1 is hinged on the longitudinal arm 10, and the longitudinal arm ball head 11 is fixed to the end of the longitudinal arm 10 away from the longitudinal arm swing arm 7. The longitudinal arm swing arm and the longitudinal arm can rotate through the longitudinal arm pin 9, changing the angle between the two, thereby changing the straight-line distance between the longitudinal arm assembly frame connection point and the wheel connection point, and the distance between the two points changes during the up and down bouncing of the wheel.

[0038] The trailing arm swing arm and the trailing arm can rotate relative to each other, changing the angle between them, thereby changing the straight-line distance between the frame connection point and the wheel connection point of the trailing arm assembly. The distance between these two points changes during the up and down movement of the wheel.

[0039] The longitudinal arm 10 includes a connecting rod 104, which is a straight rod. The middle part of the connecting rod 104 extends to one side to form a mounting frame 101, and the lower end of the elastic component 1 is hinged on the mounting frame 101; the two ends of the connecting rod 104 are respectively fixed with a connecting block 102 and a fixed block 103, and the connecting block 102 is connected to the longitudinal arm swing arm 7 through the longitudinal arm pin 9. The connection between the connecting block 102 and the connecting rod 104 is an arc-shaped setting, which facilitates the connection between the longitudinal arm swing arm 7 and the connecting rod 104, and the longitudinal arm ball head 11 is fixed on the fixed block 103.

[0040] Reference Figure 5 The elastic component 1 includes a spring upper support 13, which is hinged to an upper sleeve 15 through a spring upper fixed pin 14. During installation, the spring upper fixed pin 14 is first inserted into the spring upper support 13, and then the corresponding anti-rotation block 8 is fixed on the side wall. The anti-rotation block 8 limits the rotation and string movement of the lower sleeve pin 12. The lower end of the upper sleeve 15 is sleeved with a lower sleeve. The upper sleeve and the lower sleeve are connected by a spring. The lower sleeve is hinged to the mounting frame 101 through the lower sleeve pin 12. The elastic component 1 limits the wheel.

[0041] The tire can jump vertically up and down without changing the wheel alignment parameters, wheelbase and track. When the vehicle body rolls, the tire basically remains perpendicular to the ground, effectively reducing tire wear, providing stable straight-line driving ability, obtaining greater extreme lateral force, and improving vehicle handling stability.

[0042] Example 2

[0043] Reference Figure 6 The longitudinal arm 10 includes a long side 105, and two longitudinal arm supports 5 are provided. That is, two longitudinal arm assemblies are also provided. According to the setting of the use environment, the shape of the longitudinal arm 10 is changed, and the two ends of the long side 105 are respectively hinged on the longitudinal arm swing arm 7 at the lower end of the two longitudinal arm supports 5. One end of the long side 105 is fixed with a first short side 106, and the end of the first short side 106 away from the long side 105 is fixed with a fixing block 103. A reinforcing rib is connected between the fixing block 103 and the long side 105. The reinforcing rib increases the stability between the fixing block 103 and the long side 105. The longitudinal arm ball head 11 is fixed on the fixing block 103, and one end of the fixing block 103 is fixed with a second short side 107. A mounting bracket 101 is fixed between the second short side 107 and the long side 105. The lower end of the elastic component 1 is hinged on the mounting bracket 101. Installing two sets of longitudinal arm supports 5 can improve the strength of the longitudinal arm assembly, thereby improving the load-bearing capacity of the suspension.

[0044] In this embodiment, the longitudinal arm assembly is provided in two groups, and the transverse arm assembly is located in the middle of the two longitudinal arm assemblies, thereby improving the load-bearing capacity of the suspension.

[0045] Example 3

[0046] Reference Figure 7 There are two transverse arm supports 22, which are respectively located on both sides of the longitudinal arm support 5 and the elastic component 1. The upper end of the longitudinal arm support 5 is hinged with the longitudinal arm swing arm 7, and the longitudinal arm 10 is hinged on the longitudinal arm swing arm 7. The longitudinal arm ball head 11 is fixed to the end of the longitudinal arm 10 away from the longitudinal arm swing arm 7. The lower end of the elastic component 1 is connected to the transverse arm assembly. According to the different vehicles used, the installation positions of the transverse arm support 22 and the longitudinal arm support 5 are replaced up and down. At the same time, the number of transverse arm supports 22 is increased to two, which further improves the load-bearing capacity of the suspension.

[0047] Reference Figure 7 The cross arm assembly includes a cross arm swing arm 20 hinged on a cross arm support 22, a connecting frame 25 is fixed to the end of the cross arm swing arm 20 away from the cross arm support 22, and a double-support cross arm 23 is hinged on the two connecting frames 25. The double-support cross arm 23 replaces the cross arm 16 in Example 1 to improve stability. A cross arm ball head 17 is provided at the end of the double-support cross arm 23 away from the connecting frame 25, and a spring lower mounting support 24 is fixed on the double-support cross arm 23, and the double-support cross arm 23 fixes the bottom of the spring lower mounting support 24.

[0048] Reference Figure 7 The elastic component 1 includes a spring upper support 13, which is hinged to an upper sleeve 15 through a spring upper fixed pin 14. The lower end of the upper sleeve 15 is sleeved with a lower sleeve. The upper sleeve and the lower sleeve are connected by a spring, and the lower sleeve is hinged to the spring lower mounting support 24 through a lower sleeve pin 12.

[0049] In this embodiment, the positions of the longitudinal arm assembly and the transverse arm assembly are adjusted according to the different vehicles used, and the position of the transverse arm support 22 is increased so that the transverse arm assembly is set at the bottom and the longitudinal arm assembly is set at the top, which is suitable for different vehicles and improves the load-bearing capacity of the suspension.

[0050] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An independent suspension, comprising two frame longitudinal beams (3), the two frame longitudinal beams (3) being connected by a cross beam (4), and a suspension assembly (2) being fixed on opposite sides of the two frame longitudinal beams (3), characterized in that: The suspension assembly (2) includes an elastic component (1), a transverse arm support (22) and a longitudinal arm support (5), wherein the transverse arm support (22) and the longitudinal arm support (5) are located on both sides of the elastic component (1), the transverse arm support (22) is provided with a transverse arm component, the transverse arm component is provided with a transverse arm ball head (17), the longitudinal arm support (5) is provided with a longitudinal arm component, and the longitudinal arm component is provided with a longitudinal arm ball head (11); The cross arm assembly includes a cross arm swing arm (20) hinged on a cross arm support (22), a connecting frame (25) is fixed to one end of the cross arm swing arm (20) away from the cross arm support (22), a cross arm (16) is hinged on the connecting frame, and a cross arm ball head (17) is fixed to one end of the cross arm (16) away from the connecting frame (25); The longitudinal arm assembly comprises a longitudinal arm swing arm (7) hinged to the lower end of the longitudinal arm support (5), a longitudinal arm (10) is hinged to the longitudinal arm swing arm (7), the lower end of the elastic assembly (1) is hinged to the longitudinal arm (10), and a longitudinal arm ball head (11) is fixed to an end of the longitudinal arm (10) away from the longitudinal arm swing arm (7).

2. The independent suspension according to claim 1, characterized in that: The longitudinal arm (10) includes a connecting rod (104), which is a straight rod. The middle portion of the connecting rod (104) extends to one side to form a mounting frame (101), and the lower end of the elastic component (1) is hinged to the mounting frame (101); a connecting block (102) and a fixing block (103) are respectively fixed at both ends of the connecting rod (104), the connecting block (102) is connected to the longitudinal arm swing arm (7) through the longitudinal arm pin (9), and the longitudinal arm ball head (11) is fixed to the fixing block (103).

3. The independent suspension according to claim 1, characterized in that: The longitudinal arm (10) includes a long side (105), two longitudinal arm supports (5) are provided, and both ends of the long side (105) are hinged to the longitudinal arm swing arms (7) at the lower ends of the two longitudinal arm supports (5), one end of the long side (105) is fixed with a first short side (106), an end of the first short side (106) away from the long side (105) is fixed with a fixing block (103), a longitudinal arm ball head (11) is fixed to the fixing block (103), one end of the fixing block (103) is fixed with a second short side (107), a mounting frame (101) is fixed between the second short side (107) and the long side (105), and the lower end of the elastic component (1) is hinged to the mounting frame (101).

4. The independent suspension according to claim 3, characterized in that: A reinforcing rib is connected between the fixing block (103) and the long side (105).

5. The independent suspension according to claim 2 or 3, characterized in that: The elastic component (1) includes a spring upper support (13), the spring upper support (13) is hinged to an upper sleeve (15) via a spring upper fixed pin (14), a lower sleeve is sleeved on the lower end of the upper sleeve (15), the upper sleeve and the lower sleeve are connected via a spring, and the lower sleeve is hinged to the mounting frame (101) via a lower sleeve pin (12).

6. The independent suspension according to claim 1, characterized in that: Two transverse arm supports (22) are provided, and the two transverse arm supports (22) are respectively located on both sides of the longitudinal arm support (5) and the elastic component (1). The upper end of the longitudinal arm support (5) is hingedly connected to the longitudinal arm swing arm (7), and the longitudinal arm (10) is hingedly connected to the longitudinal arm swing arm (7). The longitudinal arm ball head (11) is fixed to one end of the longitudinal arm (10) away from the longitudinal arm swing arm (7), and the lower end of the elastic component (1) is connected to the transverse arm component.

7. The independent suspension according to claim 6, characterized in that: The cross arm assembly includes a cross arm swing arm (20) hinged on a cross arm support (22), a connecting frame (25) is fixed to one end of the cross arm swing arm (20) away from the cross arm support (22), a double support cross arm (23) is hinged to both connecting frames (25), a cross arm ball head (17) is provided on one end of the double support cross arm (23) away from the connecting frame (25), and a spring lower mounting support (24) is fixed to the double support cross arm (23).

8. The independent suspension according to claim 7, characterized in that: The elastic component (1) includes a spring upper support (13), the spring upper support (13) is hinged with an upper sleeve (15) through a spring upper fixed pin (14), the lower end of the upper sleeve (15) is sleeved with a lower sleeve, the upper sleeve and the lower sleeve are connected through a spring, and the lower sleeve is hinged to the spring lower mounting support (24) through a lower sleeve pin (12).

9. The independent suspension according to claim 7, characterized in that: The connecting frame (25) is connected to the wheel side pull rod (18) via a connecting ball head.

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