Plate spring assembly and vehicle

Abstract

The invention discloses a plate spring assembly and a vehicle, and the plate spring assembly comprises a plate spring support which is provided with a containing cavity; the first buffering piece is connected to the plate spring support and located in the containing cavity; the plate spring assembly comprises plate springs and noise reduction pads, the noise reduction pads are located between the two adjacent plate springs, and one ends of the plate springs and the noise reduction pads are located in the containing cavity; wherein one ends of the plate springs and the noise reduction pad are located below the first buffer piece, one end of the uppermost plate spring makes contact with the first buffer piece, and the projection, generated by the contact part of the first buffer piece and the uppermost plate spring, towards the plane where the noise reduction pad is located, at least partially coincides with the noise reduction pad. Therefore, the influence of bending moment can be avoided, and the stress concentration position can be avoided, so that the stress of each plate spring can be more uniform.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a leaf spring assembly and a vehicle. BACKGROUND

[0002] In the prior art, leaf spring suspensions are divided into upper swing ears and lower swing ears. The connection mode of the swing ears is pin connection through the eyelet holes (bimetallic bushings or composite rubber bushings) of the leaf springs and the hangers. The rear spring supports on the vehicle frame are also pin connected with the hangers. Vehicles with leaf spring structures generally adopt the above two structures, and the lower swing ear adopts the structure relatively more.

[0003] The above structure is prone to stress concentration at the eyelet position of the leaf spring sheet, especially when the noise reduction pad is arranged between adjacent leaf spring sheets so that the adjacent leaf spring sheets do not contact. A step is generated between the noise reduction pad and the eyelet of the leaf spring. All loads are concentrated at the step, which is prone to cause the leaf spring near the step to break. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a leaf spring assembly which can be free from the influence of bending moment and can avoid the position of stress concentration, so that the stress of each leaf spring is more uniform.

[0005] The present application further proposes a vehicle.

[0006] According to the leaf spring assembly of the first aspect of the present application, the leaf spring assembly comprises: a leaf spring support having a receiving cavity; a first buffer connected to the leaf spring support and located in the receiving cavity; a leaf spring assembly comprising: a leaf spring and a noise reduction pad located between two adjacent leaf springs, one end of the leaf spring and the noise reduction pad being located in the receiving cavity; wherein one end of the leaf spring and the noise reduction pad are located below the first buffer and one end of the uppermost leaf spring is in contact with the first buffer, and the projection of the contact part of the first buffer with the uppermost leaf spring to the plane where the noise reduction pad is located at least partially overlaps the noise reduction pad.

[0007] Therefore, the leaf spring assembly can be free from the influence of bending moment and can avoid the position of stress concentration, so that the stress of each leaf spring is more uniform.

[0008] According to some embodiments of the present application, the first buffer comprises: an inner tube connected to the leaf spring support; an outer tube sleeved on the outer side of the inner tube; and an elastic body located between the inner tube and the outer tube, and the outer tube is in contact with the surface of the uppermost leaf spring.

[0009] According to some embodiments of the present application, the leaf spring bracket comprises a first bracket having the accommodating cavity, and the first buffer is located at the top of the accommodating cavity and detachably connected to the first bracket.

[0010] According to some embodiments of the present application, the leaf spring assembly further comprises a pin shaft, the top of the first bracket is provided with a first mounting hole, the first buffer is provided with a pin shaft mounting hole, and the pin shaft is sequentially arranged through the first mounting hole and the pin shaft mounting hole, and the first buffer is rotatable around the pin shaft.

[0011] According to some embodiments of the present application, the leaf spring bracket further comprises a second bracket, the second bracket is located at the bottom of the accommodating cavity and detachably connected to the first bracket, and the bottom surface of the lowermost leaf spring is in contact with the second bracket.

[0012] According to some embodiments of the present application, the leaf spring assembly further comprises a fastener, the bottom of the first bracket is provided with a second mounting hole, the second bracket is provided with a third mounting hole, and the fastener is sequentially arranged through the second mounting hole and the third mounting hole.

[0013] According to some embodiments of the present application, the second bracket comprises a bracket body, and a limiting portion arranged at one side of the top of the bracket body and extending towards the first buffer, and the side wall of the leaf spring is in limiting cooperation with the limiting portion and the inner wall of the first bracket away from the limiting portion.

[0014] According to some embodiments of the present application, the second bracket further comprises a second buffer arranged at the top of the bracket body, the second buffer is arranged in extension along the length direction of the second bracket body, and the bottom surface of the lowermost leaf spring is in contact cooperation with the second buffer.

[0015] According to some embodiments of the present application, the inner wall of the limiting portion has a first guide surface provided with a first oil storage groove extending along the height direction of the limiting portion, the inner wall of the first bracket has a second guide surface oppositely and spacedly arranged with the first guide surface, the second guide surface is provided with a second oil storage groove extending along the height direction of the first bracket, and the side wall of the leaf spring is in limiting cooperation with the first guide surface and the second guide surface.

[0016] According to the vehicle of the second aspect of the embodiments of the present application, the vehicle comprises the above-mentioned leaf spring assembly.

[0017] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and the attached drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings. Figure 1 is a structure diagram of a plate spring assembly connected with a frame according to an embodiment of the present application; Figure 2 is a structure diagram of a plate spring assembly connected with a frame according to an embodiment of the present application; Figure 1 is an enlarged view of region A in Figure 3 is an exploded view of a plate spring assembly according to an embodiment of the present application; Figure 4 is a structure diagram of a first bracket according to an embodiment of the present application; Figure 5 is a structure diagram of a second bracket according to an embodiment of the present application; Figure 6 is a sectional view of a plate spring assembly in contact with a first buffer according to an embodiment of the present application; Figure 7 is a side view of a plate spring assembly with one end of the plate spring assembly extending into a receiving cavity of a plate spring bracket according to an embodiment of the present application; Figure 8 is a structure diagram of a first buffer according to an embodiment of the present application; Figure 9 is a sectional view of a first buffer according to an embodiment of the present application; Figure 10 is a structure diagram of a plate spring assembly according to an embodiment of the present application.

[0019] Reference Signs: 100, plate spring assembly; 10, plate spring bracket; 11, receiving cavity; 20, first buffer; 21, inner tube; 22, outer tube; 23, elastic body; 24, pin shaft mounting hole; 30, plate spring assembly; 31, plate spring; 32, noise reduction pad; 40, first bracket; 41, first mounting hole; 42, second mounting hole; 43, second guide surface; 431, second oil storage groove; 50, pin shaft; 60, second bracket; 61, third mounting hole; 62, bracket body; 63, limiting portion; 631, first guide surface; 6311, first oil storage groove; 64, second buffer; 70, fastener; 80, frame; 81, frame connecting hole. DETAILED DESCRIPTION

[0020] Embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0021] The embodiments of the present application are described below in detail with reference to the accompanying drawings. Figures 1-10 A leaf spring assembly 100 according to an embodiment of the present application is described.

[0022] Referring to Figures 1-3 As shown in the drawings, the leaf spring assembly 100 according to the first aspect of the present application comprises a leaf spring bracket 10, a first buffer 20 and a leaf spring assembly 30. The leaf spring bracket 10 has a receiving cavity 11. The first buffer 20 is connected to the leaf spring bracket 10 and is located in the receiving cavity 11. The leaf spring assembly 30 comprises leaf springs 31 and noise reduction pads 32. The noise reduction pads 32 are located between two adjacent leaf springs 31. One end of the leaf springs 31 and the noise reduction pads 32 are located in the receiving cavity 11. In particular, one end of the leaf springs 31 and the noise reduction pads 32 are located below the first buffer 20. The end of the uppermost leaf spring 31 is in contact with the first buffer 20. The projection of the contact part of the first buffer 20 with the uppermost leaf spring 31 on the plane of the noise reduction pads 32 at least partially overlaps the noise reduction pads 32.

[0023] Specifically, the leaf spring assembly 100 mainly comprises the leaf spring bracket 10, the first buffer 20 and the leaf spring assembly 30. The leaf spring bracket 10 has the receiving cavity 11, so that the leaf spring bracket 10 can provide a receiving space for the leaf spring assembly 30, thereby facilitating the extension of part of the leaf spring assembly 30 into the receiving cavity 11. The first buffer 20 is connected to the leaf spring bracket 10 and is located in the receiving cavity 11, so that the leaf spring bracket 10 can provide a mounting position and space for the first buffer 20, thereby facilitating the installation of the first buffer 20.

[0024] In addition, the noise reduction pads 32 are located between two adjacent leaf springs 31. The noise reduction pads 32 can be elastically deformed under stress. When the leaf springs 31 are stressed, the leaf springs 31 can transmit the stress to the noise reduction pads 32. Thus, the noise reduction pads 32 can absorb the stress by elastic deformation, thereby reducing the stress between the leaf springs 31 and reducing stress concentration. Moreover, since the noise reduction pads 32 are located between two adjacent leaf springs 31, the friction between the two adjacent leaf springs 31 can be reduced, and the noise can also be reduced.

[0025] Further, one end of the leaf springs 31 and the noise reduction pads 32 are located in the receiving cavity 11. The leaf spring bracket 10 can provide a receiving space for one end of the leaf springs 31 and the noise reduction pads 32, thereby facilitating the extension of one end of the leaf springs 31.

[0026] Further, the traditional noise reduction pad and the coil of the leaf spring form a step, and the distance between the coil of the leaf spring and the step forms a force arm, which causes the stress at the step to be greater and causes the coil of the leaf spring to be affected by a greater bending moment. Therefore, one end of the leaf spring 31 and the noise reduction pad 32 are located below the first buffer 20, and the end of the uppermost leaf spring 31 is in contact with the first buffer 20, for example, one end of the leaf spring 31 and the noise reduction pad 32 are located directly below the first buffer 20, so that the force arm between the noise reduction pad 32 and the first buffer 20 can be avoided. When the leaf spring 31 is forced to press the noise reduction pad 32, the noise reduction pad 32 will not generate a bending distance relative to the first buffer 20, so that the stress concentration can be reduced.

[0027] Further, the projection of the contact part of the first buffer 20 and the uppermost leaf spring 31 on the plane where the noise reduction pad 32 is located at least partially overlaps the noise reduction pad 32, so that the load can be maintained on the noise reduction pad 32 and the contact part of the first buffer 20 and the uppermost leaf spring 31, the force arm between the noise reduction pad 32 and the first buffer 20 can be avoided, and the bending moment can be avoided, so that the stress concentration position can be avoided, and the stress of each leaf spring 31 can be more uniform.

[0028] Therefore, the leaf spring assembly 100 can be affected by the bending moment, and the stress concentration position can be avoided, so that the stress of each leaf spring 31 can be more uniform.

[0029] According to some embodiments of the present application, as shown in Figure 2 and Figure 8 The first buffer 20 includes an inner tube 21, an outer tube 22, and an elastic body 23. The inner tube 21 is connected to the leaf spring bracket 10. The outer tube 22 is sleeved on the outer side of the inner tube 21. The elastic body 23 is located between the inner tube 21 and the outer tube 22. The outer tube 22 is in surface contact with the uppermost leaf spring 31.

[0030] The first buffer 20 mainly includes the inner tube 21, the outer tube 22, and the elastic body 23. The inner tube 21 is connected to the leaf spring bracket 10, so that the leaf spring bracket 10 can provide installation space for the inner tube 21. The outer tube 22 is sleeved on the outer side of the inner tube 21, so that the outer tube 22 can protect the inner tube 21, thereby preventing the inner tube 21 from being damaged.

[0031] Further, the elastic body 23 is located between the inner tube 21 and the outer tube 22, and the elastic body 23 can be elastically deformed, for example, the elastic body 23 can be provided as rubber. In this way, when subjected to an external force, the elastic body 23 between the inner tube 21 and the outer tube 22 can be deformed, and can play a buffering role, so as to reduce the stress between the uppermost leaf spring 31 and the outer tube 22, and can also make the uppermost leaf spring 31 cooperate more closely with the outer tube 22, thereby preventing the uppermost leaf spring 31 from being separated from the outer tube 22.

[0032] According to some embodiments of the present application, as shown in Figure 2 The leaf spring support 10 comprises a first support 40, the first support 40 has a containing cavity 11, and the first buffer 20 is located at the top of the containing cavity 11, and the first buffer 20 is detachably connected to the first support 40.

[0033] The first support 40 has a containing cavity 11, which can provide a containing space for one end of the leaf spring 31 and the noise reduction pad 32. The first buffer 20 is located at the top of the containing cavity 11, so that the first buffer 20 can provide downward pressure to the uppermost leaf spring 31, thereby limiting the position of the leaf spring 31.

[0034] Further, the first buffer 20 is detachably connected to the first support 40, so that the installation and disassembly of the first buffer 20 can be facilitated, thereby facilitating the replacement and maintenance of the first buffer 20.

[0035] Further, by replacing the first buffer 20 with different diameters and stiffnesses, the contact position of the first buffer 20 and the leaf spring 31 can be changed, thereby affecting the hard point position. The adjustment of the hard point can quickly adjust the stiffness and other parameters of the hard point and the leaf spring assembly 100 by replacing different first buffers 20, thereby realizing the convenient ride comfort adjustment of the vehicle.

[0036] According to some embodiments of the present application, as shown in Figure 2 and Figure 3 The leaf spring assembly 100 further comprises a pin shaft 50, the top of the first support 40 is provided with a first mounting hole 41, the first buffer 20 has a pin shaft mounting hole 24, and the pin shaft 50 is sequentially arranged in the first mounting hole 41 and the pin shaft mounting hole 24, and the first buffer 20 can rotate around the pin shaft 50.

[0037] The first mounting hole 41 is arranged on the top of the first support 40, and the pin shaft 50 can pass through the top of the first support 40 through the first mounting hole 41. The first buffer 20 has a pin shaft mounting hole 24, so that the pin shaft 50 can pass through the first buffer 20, and the first buffer 20 is installed on the first support 40 through the pin shaft 50 passing through the first mounting hole 41 and the pin shaft mounting hole 24 in sequence.

[0038] Further, when the leaf spring 31 is stressed, the leaf spring 31 moves, and since the first buffer 20 can rotate around the pin shaft 50, the friction between the first buffer 20 and the leaf spring 31 is rolling friction, so that relative displacement between the first buffer 20 and the leaf spring 31 is avoided, and abnormal sound between the first buffer 20 and the leaf spring 31 is prevented.

[0039] According to some embodiments of the present application, as shown in Figure 3 The second support 60 is arranged at the bottom of the accommodating cavity 11, and the second support 60 is detachably connected to the first support 40. The bottom surface of the lowermost leaf spring 31 is in contact with the second support 60.

[0040] The second support 60 is arranged at the bottom of the accommodating cavity 11, so that the second support 60 can provide support for the bottom of the leaf spring assembly 30 and limit the leaf spring assembly 30. Specifically, one end of the leaf spring 31 is located between the first buffer 20 and the second support 60, so that the position of the leaf spring 31 in the height direction of the leaf spring support 10 is limited, and displacement of the leaf spring 31 in the height direction of the leaf spring support 10 is prevented.

[0041] Further, the bottom surface of the lowermost leaf spring 31 is in contact with the second support 60, so that the second support 60 can provide support for the bottom surface of the lowermost leaf spring 31, and limit the position of the bottom surface of the lowermost leaf spring 31.

[0042] In addition, the second support 60 is detachably connected to the first support 40, so that the installation and disassembly of the second support 60 are facilitated. Moreover, the leaf spring 31 can be removed by only disassembling the second support 60, so that the leaf spring 31 can be replaced, and the installation and disassembly efficiency of the leaf spring 31 is improved.

[0043] According to some embodiments of the present application, as shown in Figure 2 and Figure 3 The leaf spring assembly 100 further comprises a fastener 70. The bottom of the first support 40 is provided with a second mounting hole 42, the second support 60 is provided with a third mounting hole 61, and the fastener 70 passes through the second mounting hole 42 and the third mounting hole 61 in sequence.

[0044] The bottom of the first support 40 is provided with a second mounting hole 42, so that the fastener 70 can pass through the second mounting hole 42, so that the fastener 70 can pass through the first support 40. The second support 60 is provided with a third mounting hole 61, so that the fastener 70 can pass through the second support 60. By sequentially passing the fastener 70 through the second mounting hole 42 and the third mounting hole 61, the fixed connection of the first support 40 and the second support 60 can be achieved, so that the first support 40 and the second support 60 can be more stable and firm.

[0045] Moreover, the fastener 70 sequentially passes through the second mounting hole 42 and the third mounting hole 61, which can facilitate the disassembly of the second support 60. The fastener 70 can be provided as a bolt. During the replacement and maintenance process, the fixed bolt of the lower second support 60 only needs to be removed, and the flat spring 31 can be replaced, so that the flat spring 31 can be directly taken out from the lower part of the vehicle more easily and conveniently.

[0046] In addition, the side of the first support 40 facing the frame 80 is provided with a frame connecting hole 81. By passing the bolt through the frame connecting hole 81 and the frame 80, the fixed connection of the first support 40 and the frame 80 can be achieved.

[0047] According to some embodiments of the present application, as shown in Figure 2 and Figure 5 The second support 60 includes a support body 62 and a limiting portion 63. The limiting portion 63 is arranged on one side of the top of the support body 62, and the limiting portion 63 extends towards the first buffer 20. The side wall of the flat spring 31 is limitedly matched with the limiting portion 63 and the inner wall of the first support 40 away from the limiting portion 63, respectively.

[0048] The second support 60 mainly consists of the support body 62 and the limiting portion 63. The limiting portion 63 is arranged on one side of the top of the support body 62. In this way, the limiting portion 63 can provide a certain supporting effect for the side wall of the flat spring 31, and the limiting portion 63 can facilitate the limiting of the side wall of the flat spring 31, so as to prevent the flat spring 31 from moving towards the side wall of the limiting portion 63.

[0049] Further, the limiting portion 63 extends towards the first buffer 20. In this way, the contact area of the limiting portion 63 and the side wall of the flat spring 31 can be increased, so that the limiting portion 63 and the side wall of the flat spring 31 can be more stable.

[0050] In addition, the side wall of the flat spring 31 is limitedly matched with the limiting portion 63 and the inner wall of the first support 40 away from the limiting portion 63, respectively. In this way, the limiting portion 63 and the inner wall of the first support 40 away from the limiting portion 63 can jointly limit the side wall of the flat spring 31, so as to completely prevent the flat spring 31 from moving towards the side wall of the flat spring 31.

[0051] According to some embodiments of the present application, the second bracket 60 further comprises a second buffer 64, the second buffer 64 is arranged on the top of the bracket body 62, the second buffer 64 is arranged along the length direction of the second bracket 60 body, the bottom surface of the lowermost leaf spring 31 is in contact with the second buffer 64.

[0052] The second buffer 64 is arranged on the top of the bracket body 62, the bracket body 62 can provide a mounting position for the second buffer 64, so that the installation of the second buffer 64 can be facilitated. In addition, the second buffer 64 is arranged along the length direction of the second bracket 60 body, so that the overall area of the second buffer 64 can be increased, and the contact area between the bottom surface of the lowermost leaf spring 31 and the second buffer 64 can be increased.

[0053] In addition, the bottom surface of the lowermost leaf spring 31 is in contact with the second buffer 64, and when a force is applied between the bottom surface of the lowermost leaf spring 31 and the second buffer 64, the second buffer 64 can be elastically deformed to reduce the force between the bottom surface of the lowermost leaf spring 31 and the second buffer 64. Moreover, the second buffer 64 has soft characteristics, so that the bottom surface of the lowermost leaf spring 31 and the second buffer 64 can be in soft contact, thereby preventing wear between the bottom surface of the lowermost leaf spring 31 and the second buffer 64, and avoiding abnormal noise between the bottom surface of the lowermost leaf spring 31 and the second buffer 64.

[0054] According to some embodiments of the present application, as shown in Figure 3 and Figure 4 The inner wall of the limiting portion 63 has a first guide surface 631, the first guide surface 631 is provided with a first oil storage groove 6311, the first oil storage groove 6311 extends along the height direction of the limiting portion 63, the inner wall of the first bracket 40 has a second guide surface 43, the second guide surface 43 is arranged in opposite and spaced apart relationship with the first guide surface 631, the second guide surface 43 is provided with a second oil storage groove 431, the second oil storage groove 431 extends along the height direction of the first bracket 40, and the side wall of the leaf spring 31 is limited and matched with the first guide surface 631 and the second guide surface 43, respectively.

[0055] The inner wall of the limiting portion 63 has a first guide surface 631, the first guide surface 631 can guide one side wall of the leaf spring 31, the inner wall of the first bracket 40 has a second guide surface 43, the second guide surface 43 can guide the other side wall of the leaf spring 31, so that the first guide surface 631 and the second guide surface 43 can jointly guide the two side walls of the leaf spring 31, thereby preventing the moving direction of the leaf spring 31 from deviating.

[0056] Further, the first oil storage groove 6311 extends along the height direction of the limiting portion 63, so that the area of the first oil storage groove 6311 can be increased, which can increase the lubricating area between the one side wall of the leaf spring 31 and the first guide surface 631, so that dry friction between the one side wall of the leaf spring 31 and the first guide surface 631 can be avoided, and abnormal noise can also be avoided.

[0057] Further, the first oil storage groove 6311 extends along the height direction of the limiting portion 63, so that the area of the first oil storage groove 6311 can be increased, which can increase the lubricating area between the one side wall of the leaf spring 31 and the first guide surface 631, so that dry friction between the one side wall of the leaf spring 31 and the first guide surface 631 can be avoided, and abnormal noise can also be avoided.

[0058] Similarly, the second guide surface 43 is provided with a second oil storage groove 431, and the second oil storage groove 431 can store lubricating oil. The other side wall of the leaf spring 31 can generate a lubricating oil film between the second guide surface 43, so that the lubricating effect can be achieved, so that friction between the other side wall of the leaf spring 31 and the second guide surface 43 can be prevented, and abnormal noise can be generated.

[0059] Further, the second oil storage groove 431 extends along the height direction of the first support 40, so that the area of the second oil storage groove 431 can be increased, which can increase the lubricating area between the other side wall of the leaf spring 31 and the second guide surface 43, so that dry friction between the other side wall of the leaf spring 31 and the second guide surface 43 can be avoided, and abnormal noise can also be avoided.

[0060] Further, the side wall of the leaf spring 31 is limited and matched with the first guide surface 631 and the second guide surface 43, so that the direction of the side wall of the leaf spring 31 can be limited, so that the leaf spring 31 has good guiding property, the lateral stiffness of the vehicle can be improved, and the overall stability can also be improved.

[0061] Further, the side wall of the leaf spring 31 is limited and matched with the first guide surface 631 and the second guide surface 43, so that the direction of the side wall of the leaf spring 31 can be limited, so that the leaf spring 31 has good guiding property, the lateral stiffness of the vehicle can be improved, and the overall stability can also be improved.

[0062] The plate spring assembly 100 works as follows: when the plate spring 31 is under load, the plate spring 31 tends to straighten or increase in arc height (characteristic: when the arc height is small, the length of the plate spring 31 changes relative to the large arc height, and vice versa, the length generally changes between the action length and the action length minus 10 mm). Also, when the load on the plate spring 31 increases, the plate spring 31 moves upward in the up-down direction (A direction) of the vehicle, and in the front-rear direction (B direction) of the vehicle, the plate spring 31 moves to the rear side, the first buffer 20 rotates (C position) with the movement of the plate spring 31 to accommodate the expansion and contraction of the plate spring 31, and the contact position of the first buffer 20 with the uppermost plate spring 31 is in a pure rolling state, so that relative displacement and abnormal noise can be avoided (and vice versa, the first buffer 20 rotates in the opposite direction). Further, the lateral direction of the plate spring 31, i.e. the left-right direction of the vehicle, is guided by the first bracket 40 and the second bracket 60, and the contact position of the first bracket 40 and the second bracket 60 with the plate spring 31 is provided with an oil storage groove, so that dry friction and abnormal noise can be avoided when the first bracket 40 and the second bracket 60 contact the plate spring 31. Through the guidance in the above two directions, the plate spring 31 can be kept in the best working state. Figure 10 Figure 10 Figure 10 Further, the lateral direction of the plate spring 31, i.e. the left-right direction of the vehicle, is guided by the first bracket 40 and the second bracket 60, and the contact position of the first bracket 40 and the second bracket 60 with the plate spring 31 is provided with an oil storage groove, so that dry friction and abnormal noise can be avoided when the first bracket 40 and the second bracket 60 contact the plate spring 31. Through the guidance in the above two directions, the plate spring 31 can be kept in the best working state.

[0063] According to the second embodiment of the vehicle of the present application, the plate spring assembly 100 of the above embodiment is included.

[0064] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0065] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0066] ​​While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A leaf spring assembly, characterized in that: include: A leaf spring bracket (10), wherein the leaf spring bracket (10) has a receiving cavity (11); a first buffer member (20), the first buffer member (20) being connected to the leaf spring bracket (10) and being located in the accommodating cavity (11); A leaf spring assembly (30), the leaf spring assembly (30) comprising: a leaf spring (31) and a noise reduction pad (32), the noise reduction pad (32) being located between two adjacent leaf springs (31), and one end of the leaf spring (31) and the noise reduction pad (32) being located within the accommodating cavity (11); One end of the leaf spring (31) and the noise reduction pad (32) are located below the first buffer (20), and one end of the leaf spring (31) located at the top is in contact with the first buffer (20), and a projection of a contact portion between the first buffer (20) and the leaf spring (31) located at the top onto the plane where the noise reduction pad (32) is located at least partially overlaps with the noise reduction pad (32).

2. The leaf spring assembly according to claim 1, characterized in that: The first buffer member (20) comprises: an inner tube (21), the inner tube (21) being connected to the leaf spring bracket (10); An outer tube (22), the outer tube (22) being sleeved on the outer side of the inner tube (21); An elastic body (23), the elastic body (23) is located between the inner tube (21) and the outer tube (22), and the outer tube (22) is in contact with the surface of the leaf spring (31) located at the top.

3. The leaf spring assembly according to claim 1, characterized in that: The leaf spring bracket (10) comprises: A first bracket (40), the first bracket (40) having the accommodating cavity (11), the first buffer member (20) being located at the top of the accommodating cavity (11) and being detachably connected to the first bracket (40).

4. The leaf spring assembly according to claim 3, characterized in that: Also includes: A pin shaft (50) is provided at the top of the first bracket (40), a first mounting hole (41) is provided, the first buffer member (20) has a pin shaft mounting hole (24), the pin shaft (50) passes through the first mounting hole (41) and the pin shaft mounting hole (24) in sequence, and the first buffer member (20) can rotate around the pin shaft (50).

5. The leaf spring assembly according to claim 3, characterized in that: The leaf spring bracket (10) further includes: A second bracket (60) is located at the bottom of the accommodating cavity (11) and is detachably connected to the first bracket (40), and the bottom surface of the leaf spring (31) located at the bottom contacts the second bracket (60).

6. The leaf spring assembly according to claim 5, characterized in that: Also includes: The fastener (70) is provided with a second mounting hole (42) at the bottom of the first bracket (40), and the second bracket (60) is provided with a third mounting hole (61), and the fastener (70) is sequentially passed through the second mounting hole (42) and the third mounting hole (61).

7. The leaf spring assembly according to claim 5, characterized in that: The second bracket (60) comprises: a bracket body (62); A limiting portion (63) is provided on one side of the top of the bracket body (62) and extends toward the first buffer member (20), and the side walls of the leaf spring (31) are respectively limitedly engaged with the limiting portion (63) and the inner wall of the first bracket (40) away from the limiting portion (63).

8. The leaf spring assembly according to claim 7, characterized in that: The second bracket (60) further includes: A second buffer member (64) is provided on the top of the bracket body (62), and the second buffer member (64) is extended along the length direction of the second bracket (60) body, and the bottom surface of the leaf spring (31) located at the bottom contacts and cooperates with the second buffer member (64).

9. The leaf spring assembly according to claim 8, characterized in that: The inner wall of the limiting portion (63) has a first guide surface (631), and the first guide surface (631) is provided with a first oil storage groove (6311). The first oil storage groove (6311) extends along the height direction of the limiting portion (63); The inner wall of the first bracket (40) has a second guide surface (43), the second guide surface (43) is spaced apart from the first guide surface (631), the second guide surface (43) is provided with a second oil storage groove (431), and the second oil storage groove (431) extends along the height direction of the first bracket (40), and the side walls of the leaf spring (31) are respectively limitedly matched with the first guide surface (631) and the second guide surface (43).

10. A vehicle, characterized in that: include: The leaf spring assembly according to any one of claims 1 to 9.

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