Suspension device and vehicle

Abstract

The utility model belongs to the technical field of vehicle systems, and discloses a suspension device and a vehicle. The suspension device comprises a bridge, a frame, a steel plate spring, a connecting structure and a shock absorber, the two ends of the steel plate spring are connected to the frame, and the middle part of the steel plate spring is connected with the bridge; the connecting structure is arranged at the bottom of the steel plate spring, and the steel plate spring is clamped between the bridge and the connecting structure; one end of the shock absorber is connected to the frame, and the other end of the shock absorber is hinged to the connecting structure. According to the suspension device, the distance between the shock absorbers can be increased, the shock absorption effect is guaranteed, mounting and dismounting are more convenient, and stable mounting can be provided for the shock absorbers.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle system technical field especially, relates to a kind of suspension device and vehicle. BACKGROUND

[0002] With the continuous development of vehicle technology, the demand for lightweight of the whole vehicle is increasing, and the total weight of the whole vehicle is getting lower and lower. As the bearing system of the vehicle, the suspension system transmits the force and torque between the frame and the axle, buffers the impact force from the uneven road to the frame, and attenuates the vibration.

[0003] Among them, the overall bridge is used in the bearing vehicle with narrow outer width, and the tubular beam with tubular section is usually used. Since the outer width of the vehicle is narrow, the size of the tubular beam in the middle is shorter, and the spacing size for providing the mounting point of the shock absorber is also shorter. That is, the center distance between the two adjacent shock absorbers is shorter, and when the vehicle leans, the stroke of the shock absorber stretching and compressing is shortened, which affects the use effect of the shock absorber and the performance of the whole vehicle. In the prior art, a bracket is usually welded on the tubular beam of the bridge to provide a lower mounting point for the shock absorber. This way is complex to install and has poor damping effect.

[0004] Therefore, it is urgent to provide a new type of suspension device to solve the above technical problems in the prior art. UTILITY MODEL CONTENT

[0005] One object of the utility model is to provide a suspension device that can increase the spacing between shock absorbers, ensure the damping effect, and be more convenient to install and disassemble, and can provide stable mounting for the shock absorber.

[0006] To achieve this object, the utility model adopts the following technical solutions:

[0007] The suspension device comprises a bridge, a frame, a leaf spring, a connecting structure and a shock absorber. The two ends of the leaf spring are connected to the frame, and the middle part of the leaf spring is connected to the bridge. The connecting structure is arranged at the bottom of the leaf spring, and the leaf spring is clamped between the bridge and the connecting structure. One end of the shock absorber is connected to the frame, and the other end is hinged to the connecting structure.

[0008] Optionally, the connecting structure comprises a hinge hole, a hinge shaft is arranged in the hinge hole, and the bottom of the shock absorber is hinged to the hinge shaft.

[0009] Optionally, the two ends of the hinge shaft are provided with fixed nuts, and the fixed nuts are threadedly connected with the hinge shaft to lock and fix the shock absorber and the connecting structure by the two fixed nuts.

[0010] Optionally, the fixed nut is a slotted nut, and the two ends of the hinge shaft are respectively provided with an open pin, and the open pin is in clamping connection with a pin slot of the slotted nut.

[0011] Optionally, the steel plate spring comprises a plurality of leaf springs stacked, and the connecting structure comprises a leaf spring eye integrally formed at the bottom of the leaf spring in the vehicle height direction, and the leaf spring eye is wound to form the hinge hole.

[0012] Optionally, the connecting structure comprises a connecting bracket, and the connecting bracket is provided with the hinge hole.

[0013] Optionally, the connecting bracket comprises a connecting portion and two mounting portions respectively arranged at the two ends of the connecting portion, the mounting portions are provided with the hinge hole, and the hinge holes of the two mounting portions are coaxially arranged.

[0014] Optionally, the suspension device further comprises a fixed seat, the fixed seat and the steel plate spring are provided with the bridge therebetween, and the fixed seat and the connecting portion are fixedly connected through a plurality of U-shaped bolts.

[0015] Optionally, the fixed seat is provided with a fixed bolt, and the fixed bolt is fixed to the bottom of the steel plate spring in the vehicle height direction.

[0016] Another purpose of the utility model is to provide a vehicle, which comprises the suspension device according to any one of the above solutions.

[0017] Beneficial effects:

[0018] The suspension device in the utility model is provided with a shock absorber between the frame and the steel plate spring, effectively reduces the longitudinal bumping in the operation of the vehicle, in order to facilitate the installation of the shock absorber, the connecting structure is arranged at the bottom of the steel plate spring, so that the shock absorber can be directly installed on the connecting structure of the steel plate spring in a hinged manner, without the need of fixing other mounting components on the bridge, the connection between the bridge and the shock absorber can be realized, the installation cost is reduced, meanwhile, enough space can be provided for the installation of the shock absorber, the distance between the two shock absorbers is improved, and the damping effect of the shock absorber during the vehicle roll is improved. The suspension device can increase the distance between the shock absorbers, ensure the damping effect, and is more convenient to install and disassemble, can provide stable installation for the shock absorber. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the isometric view of the suspension device provided by the embodiment of the utility model;

[0020] Figure 2 is the enlarged view of the bottom of the shock absorber of the suspension device in the first embodiment provided by the embodiment of the utility model;

[0021] Figure 3 is a partial enlarged view of the shock absorber bottom of the suspension device in Embodiment Two provided in the specific implementation manner of the utility model.

[0022] In the drawings:

[0023] 100, bridge; 200, frame; 210, articulated convex shaft; 300, steel plate spring; 400, connecting structure; 401, articulated hole; 410, articulated shaft; 420, plate spring eye; 430, fixing nut; 431, pin groove; 432, cotter pin; 440, connecting support; 441, connecting part; 442, mounting part; 443, U-shaped bolt; 450, fixing seat; 451, fixing bolt; 500, shock absorber. DETAILED DESCRIPTION

[0024] The utility model will be further explained in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0025] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0027] In the description of the present embodiment, the terms "upper", "lower", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0028] Please refer to Figure 1 In the present embodiment, the suspension device comprises a bridge 100, a frame 200, a leaf spring 300, a connecting structure 400 and a shock absorber 500; both ends of the leaf spring 300 are connected to the frame 200, and the middle part of the leaf spring 300 is connected with the bridge 100; the connecting structure 400 is arranged at the bottom of the leaf spring 300, and the leaf spring 300 is clamped between the bridge 100 and the connecting structure 400; one end of the shock absorber 500 is connected to the frame 200, and the other end is hinged to the connecting structure 400.

[0029] The suspension device in the present embodiment is provided with a shock absorber 500 between the frame 200 and the leaf spring 300, which effectively reduces the longitudinal bumping during vehicle operation. In order to facilitate the installation of the shock absorber 500, the connecting structure 400 is arranged at the bottom of the leaf spring 300, so that the shock absorber 500 can be directly installed on the connecting structure 400 of the leaf spring 300 by hinging, without the need for fixing other mounting components on the bridge 100, so as to realize the connection between the bridge 100 and the shock absorber 500, reduce the installation cost; at the same time, it can also provide enough space for the installation of the shock absorber 500, improve the distance between the two shock absorbers 500, and further improve the damping effect of the shock absorber 500 when the vehicle leans. The suspension device can increase the distance between the shock absorbers 500, ensure the damping effect, and is more convenient to install and disassemble, which can provide stable installation for the shock absorber 500.

[0030] In the present embodiment, the frame 200 is provided with a hinge shaft 210, and the top end of the shock absorber 500 is hinged to the hinge shaft 210. That is, the top end of the shock absorber 500 is hingedly fixed, and the bottom end is also hingedly fixed. When the shock absorber 500 is elongated or compressed to produce angular deviation, the upper and lower ends of the shock absorber 500 can freely rotate around the corresponding hinge shaft, so that when the bridge 100 and the frame 200 produce relative displacement in the horizontal direction, the shock absorber 500 can swing along the corresponding hinge shaft to adapt, realizing reliable fixation and good damping effect.

[0031] Specifically, the shock absorber 500 is connected to the longitudinal beam of the vehicle frame 200, and the bridge 100 here refers to the front or rear bridge 100, i.e., the steering bridge with steering function, or a different axle, which will not be described here.

[0032] As shown in Figure 2 and Figure 3 Optionally, the connecting structure 400 includes a hinge hole 401, a hinge shaft 410 is arranged in the hinge hole 401, and the bottom of the shock absorber 500 is hinged to the hinge shaft 410. Through the arrangement of the hinge hole 401 and the hinge shaft 410, the bottom of the shock absorber is not in direct contact with the connecting structure 400, but is connected through the hinge shaft 410. Since the force receiving component is mainly the hinge shaft 410, i.e., the hinge shaft 410 is the part that is more prone to damage, the service life of the shock absorber and the connecting structure 400 can be significantly improved, and when maintenance is needed, only the hinge shaft 410 needs to be removed, thereby reducing maintenance costs.

[0033] Further, both ends of the hinge shaft 410 are provided with fixed nuts 430, which are threadedly connected with the hinge shaft 410, so that the two fixed nuts 430 lock and fix the shock absorber 500 and the connecting structure 400. In this way, the shock absorber 500 can be reliably locked and fixed on the hinge shaft 410, and the fixed nuts 430 can be easily removed, facilitating the disassembly, maintenance and replacement of the shock absorber 500, improving maintenance efficiency and reducing maintenance costs.

[0034] In this embodiment, the fixed nut 430 is a slotted nut, and the hinge shaft 410 is provided with an open pin 432 at each end, which is connected with the pin slot 431 of the slotted nut. After the slotted nut is locked and fixed on the hinge shaft 410, the open pin 432 is inserted into the hinge shaft 410, and the open pin 432 is inserted into the corresponding pin slot 431 of the slotted nut, achieving the locking and fixing of the slotted nut, avoiding the falling of the fixed nut 430 due to vibration, achieving the self-locking function of the fixed nut 430, and improving the reliability.

[0035] Embodiment one

[0036] In this embodiment, based on the suspension device described in any of the above schemes, the steel plate spring 300 includes a plurality of laminated leaf springs, the connecting structure 400 includes a leaf spring eye 420 integrally formed with the bottom leaf spring in the vehicle height direction, and the hinge hole 401 is formed by winding the leaf spring eye 420. Since the leaf spring eye 420 is integrally formed on the steel plate spring 300, no mounting seat needs to be fixed on the steel plate spring 300, and the connection with the shock absorber 500 can be achieved, thereby reducing the installation cost and manufacturing cost.

[0037] Example 2

[0038] The difference between this second embodiment and the first embodiment is that the connecting structure 400 includes a connecting bracket 440, which has the hinge hole 401. Compared to the integrally formed leaf spring lug 420, the connecting bracket 440 improves the reliability of the fixation. After the hinge hole 401 wears, it is not necessary to replace the entire leaf spring 300; only the connecting bracket 440 needs to be replaced, thus reducing maintenance costs. Furthermore, the connecting bracket 440 directly bears the force, avoiding increasing the stress on the leaf spring 300, which improves the service life and reliability of the leaf spring 300. Compared to the method in the first embodiment, the installation cost of the connecting bracket 440 is higher, but the installation reliability is higher, which will not be elaborated here.

[0039] Furthermore, the aforementioned connecting bracket 440 includes a connecting portion 441 and two mounting portions 442 correspondingly disposed at both ends of the connecting portion 441. Each mounting portion 442 has a hinge hole 401, and the hinge holes 401 of the two mounting portions 442 are coaxially arranged. By providing coaxial hinge holes 401 in the two mounting portions 442 at both ends of the connecting portion 441, the force exerted by the hinge shaft 410 on the connecting bracket 440 can be evenly distributed, avoiding excessive local stress, improving the service life of the hinge shaft 410, and making its use more stable and reliable.

[0040] Optionally, the suspension device further includes a mounting base 450, and a bridge 100 is provided between the mounting base 450 and the leaf spring 300. Figure 3 (Hidden in the image), the aforementioned fixing seat 450 and the aforementioned connecting part 441 are fixedly connected by a number of U-bolts 443. It should be noted that the leaf spring 300, the bridge 100, and the connecting bracket 440 are fixedly connected by one fixing seat 450 and two sets of U-bolts 443. This not only fixes the connecting bracket 440 to the leaf spring 300, but also fixes the bridge 100 to the leaf spring 300. The three components can be fixed using one set of fasteners, reducing the number of fasteners used, which not only reduces installation costs but also improves the reliability of the system.

[0041] Furthermore, the aforementioned mounting base 450 is provided with a fixing bolt 451, which is fixed to the bottom of the leaf spring 300 along the vehicle height direction. The fixing bolt 451 enables a fixed connection between the mounting base and the leaf spring 300, facilitates disassembly, and allows for positioning of the mounting base 450 and the leaf spring 300 before tightening the U-bolt 443, thus improving installation efficiency.

[0042] The embodiment also provides a vehicle comprising the suspension device according to any one of the above solutions. The vehicle can be a small-sized vehicle such as an intelligent chassis for transporting goods, an intelligent distribution logistics vehicle, an intelligent sanitation vehicle or an electric power supplement vehicle, as long as the suspension device with a narrow spacing is used. The vehicle has the beneficial effects of the suspension device according to any one of the above solutions after the suspension device is used, and specifically, the shock absorber 500 can be directly installed on the connecting structure 400 of the steel plate spring 300 in a hinged manner, without the need of fixing other mounting components on the bridge 100, so that the connection between the bridge 100 and the shock absorber 500 can be achieved, and the installation cost is reduced; meanwhile, sufficient space can be provided for the installation of the shock absorber 500, the spacing between the two shock absorbers 500 is increased, and the damping effect of the shock absorber 500 during the vehicle side leaning is improved.

[0043] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the implementation mode of the utility model. For the ordinary skilled in the art, various obvious changes, readjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the implementation modes cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A suspension device mounted to a bridge (100) and a frame (200) of a vehicle chassis, characterized by, The application relates to a suspension device. The suspension device comprises a leaf spring (300) assembly, two ends of the leaf spring (300) in the vehicle body direction are connected to a vehicle frame (200), and a bridge (100) is connected to the middle part of the leaf spring (300); a connecting structure (400) is arranged at the bottom of the leaf spring (300) in the vehicle height direction, the leaf spring (300) is arranged between the bridge (100) and the connecting structure (400); a shock absorber (500) is connected to one end of the vehicle frame (200) and is hinged to the other end of the connecting structure (400); the connecting structure (400) comprises a hinge hole (401), a hinge shaft (410) is arranged in the hinge hole (401), and the bottom of the shock absorber (500) is hinged to the hinge shaft (410); the leaf spring (300) comprises a plurality of leaf springs arranged in layers, the connecting structure (400) comprises a leaf spring eye (420) integrally formed at the bottom of the leaf spring in the vehicle height direction, and the leaf spring eye (420) is wound to form the hinge hole (401). Both ends of the hinge shaft (410) are provided with fixed nuts (430), the fixed nuts (430) are in threaded connection with the hinge shaft (410), and the two fixed nuts (430) lock and fix the shock absorber (500) and the connecting structure (400). The fixed nuts (430) are slotted nuts, open-end pins (432) are arranged at the two ends of the hinge shaft (410) respectively, and the open-end pins (432) are in clamping connection with pin slots (431) of the slotted nuts. The application further relates to a suspension device comprising any one of the suspension devices according to claims 1-3. ​ 2. The suspension device according to claim 1, characterized in that ​ 3. The suspension device according to claim 2, characterized in that ​ 4. Vehicle, characterized in that ​

Images