Rear spiral independent suspension

Abstract

The utility model relates to the field of automobile suspension, in particular to a rear spiral independent suspension which comprises a brake disc mechanism, a driving motor, a first suspension body and a second suspension body, the first suspension body and the second suspension body are symmetrically arranged, and swing arm connecting mechanisms extending oppositely are fixed to the opposite side faces of the first suspension body and the second suspension body. A damping assembly is hinged to the swing arm connecting mechanism, and the end of the damping assembly and the end of the swing arm connecting mechanism are both connected with a vehicle body. The brake disc mechanism is fixed to the outer side face of the first suspension body and the outer side face of the second suspension body, the driving motor is fixed to the brake disc mechanism, and the external tire is fixed to the driving motor, so that the motor is externally arranged, and complex transmission structures of the first suspension body and the second suspension body are omitted; the first suspension body and the second suspension body can be applied to the rear independent suspension and can also be applied to the front independent suspension, the front suspension and the rear suspension can share a mold in the production process, the number and types of accessories are reduced, and cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of automobile suspension, in particular to a rear spiral independent suspension. Background Art

[0002] The automobile suspension system is a complex system connecting the car body and tires. It is mainly composed of springs and shock absorbers, etc. It is designed to support the car body, improve the riding experience, and comprehensively handle various forces to ensure the stability, comfort and safety of the car. It is undoubtedly a vital component of modern cars.

[0003] According to the different control forms, the suspension system is divided into passive suspension and active suspension; from the perspective of the guiding mechanism, it can be divided into independent suspension and non-independent suspension. The characteristic of non-independent suspension is that the wheels on both sides are connected by an integral axle. Although it has a simple structure and low cost, it has poor comfort and handling stability. Therefore, it is rarely used in modern cars and is more common in trucks and buses. Among them, independent suspension is that each side of the wheel is suspended under the frame or body through an independent elastic suspension system. Its advantage is that it can reduce the impact on the body, improve the adhesion between the wheel and the ground, and at the same time lower the center of gravity of the body to improve driving stability.

[0004] However, the existing independent suspension and motor are independent of each other, which requires the independent suspension to be connected to a complex transmission structure. Different molds need to be used for the production of the front and rear suspensions, resulting in high production costs. Utility Model Content

[0005] The utility model aims to provide a rear helical independent suspension, aiming to improve the existing independent suspension and the motor being independent of each other, so that the independent suspension needs to be connected to a complex transmission structure, different molds need to be used for the production of the front and rear suspensions, and the production cost is high.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A rear helical independent suspension comprises a first suspension body, a second suspension body, a brake disc mechanism and a drive motor which are symmetrically arranged.

[0008] The brake disc mechanism is fixed on the outer sides of the first suspension body and the second suspension body, and the drive motor is fixed on the brake disc mechanism;

[0009] A relatively extended swing arm connection mechanism is fixed on opposite sides of the first suspension body and the second suspension body, a shock absorbing assembly is hinged on the swing arm connection mechanism, and ends of the shock absorbing assembly and the swing arm connection mechanism are both connected to the vehicle body.

[0010] Further, the bottom of the side surfaces opposite to the first suspension body and the second suspension body are provided with a mounting plate protruding outward, a lower hinge ball is movably provided on the mounting plate, the swing arm connection mechanism comprises a lower swing arm, a lower mounting groove concave upward is provided on the bottom surface of one end of the lower swing arm, and the lower mounting groove cover is provided on the lower hinge ball;

[0011] A front swing arm is fixed on the side surface of the lower swing arm, and the free end of the front swing arm and the free end of the lower swing arm are both connected to the vehicle body.

[0012] Furthermore, a hinged base is fixed on the top surface of the lower swing arm, and the bottom end of the shock absorbing assembly is hinged on the hinged base.

[0013] Furthermore, the shock absorbing assembly includes a telescopic tube, a first base, a second base and a spring, the spring is sleeved on the telescopic tube, the first base and the second base are respectively fixed at two ends of the telescopic tube, the two ends of the spring are respectively in contact with the first base and the second base, the first base is hinged on the hinged base, and the second base is connected to the vehicle body.

[0014] Further, the top of the side opposite to the first suspension body and the second suspension body is fixedly provided with a connecting arm protruding outward, the top of the connecting arm is provided with an upper hinge ball, the swing arm connecting mechanism also includes two upper swing arms, one end of the upper swing arms is connected to each other and is provided with an upper mounting groove, and the upper mounting groove cover is provided on the upper hinge ball;

[0015] The other end of the upper swing arm extends outward to both sides of the shock absorbing assembly and is connected to the vehicle body.

[0016] Furthermore, the middle parts of the first suspension body and the second suspension body are both provided with installation channels, the driving motor comprises a stator and a rotor drivingly connected to the stator, and the power line and control line of the stator pass through the brake disc mechanism and the installation channel and extend outward;

[0017] The brake disc mechanism is fixedly connected to the side of the rotor, and the outer side surface of the rotor is fixedly connected to the outer wheel.

[0018] Furthermore, the stiffness of the spring is 260-270 N / mm.

[0019] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:

[0020] In this solution, the external tire is fixed on the drive motor, so that the motor is externalized, eliminating the complex transmission structure of the first suspension body and the second suspension body, so that the first suspension body and the second suspension body can be used in the rear independent suspension as well as the front independent suspension. The front and rear suspensions can share the same mold during the production process, reducing the number and types of accessories and effectively reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the rear spiral independent suspension of the utility model;

[0022] Figure 2 It is a top view of the rear spiral independent suspension of the utility model;

[0023] Figure 3 It is a partial structural schematic diagram of the rear spiral independent suspension of the utility model;

[0024] Figure 4 It is a schematic diagram of the first suspension body structure of the rear spiral independent suspension of the utility model;

[0025] Figure 5 It is a schematic diagram of the lower arm structure of the rear spiral independent suspension of the utility model;

[0026] Figure 6 It is a schematic diagram of the upper swing arm structure of the rear helical independent suspension of the utility model.

[0027] Description of reference numerals:

[0028] 1. First suspension body; 101. Synchronous drive block; 102. Mounting plate; 103. Lower articulated ball; 104. Connecting arm; 105. Upper articulated ball; 106. Mounting channel; 107. Boss;

[0029] 2. The second suspension body;

[0030] 3. Swing arm connection mechanism; 301. Lower swing arm; 3011. Lower mounting groove; 302. Front swing arm; 303. Articulated base; 304. Upper swing arm; 3041. Upper mounting groove; 305. Bushing;

[0031] 4. shock absorbing assembly; 401. telescopic tube; 402. spring; 403. first base; 404. second base;

[0032] 5. Brake disc mechanism;

[0033] 6. driving motor; 601. rotor; 602. power cord;

[0034] 7. External steering linkage. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0036] In addition, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] When an element is referred to as being “fixed to” or “disposed on” or “provided on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0038] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0039] Example

[0040] Please refer to Figure 1-6 As shown, this embodiment provides a rear spiral independent suspension, including a symmetrically arranged first suspension body 1, a second suspension body 2, a brake disc mechanism 5, and a drive motor 6. A relatively extended swing arm connecting mechanism 3 is fixed on the opposite sides of the first suspension body 1 and the second suspension body 2, and a shock absorbing assembly 4 is hinged on the swing arm connecting mechanism 3. The end of the shock absorbing assembly 4 and the end of the swing arm connecting mechanism 3 are both connected to the vehicle body; in this embodiment, the end of the swing arm connecting mechanism 3 is rotatably connected to the vehicle body through a bushing 305, and when the vehicle body swings, the bushing 305 is used to unload the force, and at the same time, the shock absorbing assembly 4 is compressed and unloaded to achieve a better shock absorption effect. The brake disc mechanism 5 is fixed on the outer side of the first suspension body 1 and the second suspension body 2, and the drive motor 6 is fixed on the brake disc mechanism 5. The external tire is fixed on the driving motor 6, so that the motor is external, eliminating the complex transmission structure of the first suspension body 1 and the second suspension body 2, so that the first suspension body 1 and the second suspension body 2 can be used in the front independent suspension as well as the rear independent suspension. The front and rear suspensions can share the same mold during the production process, reducing the number and types of accessories and effectively reducing costs.

[0041] Please refer to Figure 1-4As shown, the bottom of the side opposite to the first suspension body 1 and the second suspension body 2 is provided with a mounting plate 102 protruding outward, and a lower articulated ball 103 is movably provided on the mounting plate 102; the swing arm connection mechanism 3 includes a lower swing arm 301, and a lower mounting groove 3011 recessed upward is provided on the bottom surface of one end of the lower swing arm 301, and the lower mounting groove 3011 is covered on the lower articulated ball 103, that is, one end of the lower swing arm 301 is ball-hinged on the mounting plate 102. The mounting plate 102 gives way to one end of the lower swing arm 301, ensuring that one end of the lower swing arm 301 can be flipped in multiple directions on the mounting plate 102, so that the lower swing arm 301 has good flexibility, further improving the overall shock absorption effect. A front swing arm 302 is fixed on the side of the lower swing arm 301, and the free ends of the front swing arm 302 and the lower swing arm 301 are both connected to the vehicle body. In this embodiment, the free end of the lower swing arm 301 and the free end of the front swing arm 302 are movably connected to the vehicle body through a bushing 305, and the front swing arm 302 and the lower swing arm 301 are connected to the vehicle body at multiple horizontal positions to ensure the stability of the connection between the front helical independent suspension and the vehicle body.

[0042] Please refer to Figure 1-3 As shown, a hinged base 303 is fixed on the top surface of the lower swing arm 301, and the bottom end of the shock absorbing assembly 4 is hinged on the hinged base 303. The bottom end of the shock absorbing assembly 4 is flipped on the vertical plane through the hinged base 303, which improves the flexibility of the shock absorbing assembly 4 and achieves a better force unloading effect. In this embodiment, the shock absorbing assembly 4 includes a telescopic tube 401, a first base 403, a second base 404 and a spring 402. The spring 402 is sleeved on the telescopic tube 401. The first base 403 and the second base 404 are respectively fixed on the two ends of the telescopic tube 401. The two ends of the spring 402 are respectively in contact with the first base 403 and the second base 404. The first base 403 is hinged on the hinged base 303, and the second base 404 is connected to the vehicle body. During the shock absorbing process, the first base 403 and the second base 404 compress the telescopic tube 401 and the spring 402 to unload the force, and the spring 402 pushes the telescopic tube 401 and the second base 404 to reset upward. Specifically, the stiffness of the spring 402 is 260-270 N / mm. In this embodiment, the stiffness of the spring 402 is 265 N / mm, which ensures that the reaction force of the spring 402 is small when passing through an obstacle, while maintaining a good shock absorption effect and preventing the reaction force of the spring 402 from causing damage to the vehicle body. Similarly, the stiffness of the spring 402 can also be 260 N / mm or 270 N / mm.

[0043] Please refer to Figure 5 and Figure 6As shown, the top of the side opposite to the first suspension body 1 and the second suspension body 2 is fixedly provided with a connecting arm 104 protruding outward, and the top of the connecting arm 104 is provided with an upper hinge ball 105; the swing arm connecting mechanism 3 also includes two upper swing arms 304, one end of the upper swing arms 304 is connected to each other, and an upper mounting groove 3041 is provided, and the upper mounting groove 3041 is covered on the upper hinge ball 105, that is, one end of the upper swing arm 304 is ball-hinged on the connecting arm 104. The upper swing arm 304 rotates at multiple angles above the first suspension body 1 and the second suspension body 2 through the upper hinge ball 105, which effectively improves the flexibility of the upper swing arm 304 and further improves the overall shock absorption effect. The other end of the upper swing arm 304 extends outward to both sides of the shock absorbing assembly 4 and is connected to the vehicle body. Specifically, the other end of the upper swing arm 304 is movably connected to the vehicle body through the bushing 305, and the two upper swing arms 304 are connected to the vehicle body at multiple horizontal positions, further ensuring the stability of the connection between the front spiral independent suspension and the vehicle body. The upper swing arm 304, the lower swing arm 301 and the front swing arm 302 form a four-point connection structure, which is connected to the vehicle body in multiple directions in the horizontal and vertical positions, and jointly ensures the firmness of the connection between the front helical independent suspension and the vehicle body.

[0044] Please refer to Figure 2-4 As shown, the sides of the first suspension body 1 and the second suspension body 2 are both provided with outwardly protruding synchronous drive blocks 101, and the synchronous drive blocks 101 are used to control the synchronous deflection of the first suspension body 1 and the second suspension body 2 with the external steering linkage mechanism 7 to realize the steering control of the rear wheels.

[0045] Please refer to Figure 1-4 As shown, the middle part of the first suspension body 1 and the second suspension body 2 are provided with a mounting channel 106, and the outer side surfaces of the first suspension body 1 and the second suspension body 2 are provided with a boss 107 protruding outward, and the mounting channel 106 passes through the boss 107. The brake disc mechanism 5 is sleeved on the boss 107, and is respectively fitted and fixed to the outer side surfaces of the first suspension body 1 and the second suspension body 2. The drive motor 6 includes a stator (not shown in the accompanying drawings) and a rotor 601 driven and connected to the stator. The power line 602 and the control line of the stator extend outward through the brake disc mechanism 5 and the mounting channel 106. The other connecting lines of the same stator also extend outward through the brake disc mechanism 5 and the mounting channel 106. The mounting channel 106 gives way and limits the connecting lines of the stator to ensure the neatness of the routing of the drive motor 6, ensure the stability of the electrical connection of the drive motor 6, and reduce the difficulty of assembly. The brake disc mechanism 5 is fixedly connected to the side of the rotor 601, and the outer side of the rotor 601 is fixedly connected to the external wheel. The rotor 601 drives the external wheel and the brake disc mechanism 5 to rotate synchronously, thereby achieving the purpose of driving the vehicle to move.

[0046] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A rear helical independent suspension, characterized in that: It includes a symmetrically arranged first suspension body, a second suspension body, a brake disc mechanism, and a drive motor. The brake disc mechanism is fixed on the outer sides of the first suspension body and the second suspension body, and the drive motor is fixed on the brake disc mechanism; A relatively extended swing arm connection mechanism is fixed on opposite sides of the first suspension body and the second suspension body, a shock absorbing assembly is hinged on the swing arm connection mechanism, and ends of the shock absorbing assembly and the swing arm connection mechanism are both connected to the vehicle body.

2. The rear helical independent suspension according to claim 1, characterized in that: The bottom of the side surfaces opposite to the first suspension body and the second suspension body are provided with a mounting plate protruding outward, a lower hinge ball is movably provided on the mounting plate, the swing arm connection mechanism comprises a lower swing arm, a lower mounting groove concave upward is provided on the bottom surface of one end of the lower swing arm, and the lower mounting groove cover is provided on the lower hinge ball; A front swing arm is fixed on the side surface of the lower swing arm, and the free end of the front swing arm and the free end of the lower swing arm are both connected to the vehicle body.

3. The rear helical independent suspension according to claim 2, characterized in that: A hinged base is fixed on the top surface of the lower swing arm, and the bottom end of the shock absorbing assembly is hinged on the hinged base.

4. The rear helical independent suspension according to claim 3, characterized in that: The shock absorbing assembly includes a telescopic tube, a first base, a second base and a spring, wherein the spring is sleeved on the telescopic tube, the first base and the second base are respectively fixed at two ends of the telescopic tube, the two ends of the spring are respectively in contact with the first base and the second base, the first base is hinged on the hinged base, and the second base is connected to the vehicle body.

5. The rear helical independent suspension according to claim 2, characterized in that: The top of the side opposite to the first suspension body and the second suspension body is fixedly provided with a connecting arm protruding outward, and the top of the connecting arm is provided with an upper hinge ball, and the swing arm connecting mechanism also includes two upper swing arms, one end of the upper swing arms is connected to each other and is provided with an upper mounting groove, and the upper mounting groove cover is provided on the upper hinge ball; The other end of the upper swing arm extends outward to both sides of the shock absorbing assembly and is connected to the vehicle body.

6. The rear helical independent suspension according to claim 1, characterized in that: The middle parts of the first suspension body and the second suspension body are both provided with installation channels, the driving motor comprises a stator and a rotor drivingly connected to the stator, and the power line and control line of the stator pass through the brake disc mechanism and the installation channel and extend outward; The brake disc mechanism is fixedly connected to the side of the rotor, and the outer side surface of the rotor is fixedly connected to the outer wheel.

7. The rear helical independent suspension according to claim 4, characterized in that: The stiffness of the spring is 260-270 N / mm.

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