Split type spring seat assembly, suspension assembly and vehicle

Abstract

The invention discloses a split type spring seat assembly, a suspension assembly and a vehicle, and relates to the field of vehicle accessories, the split type spring seat assembly comprises a first base and a second base, the second base sleeves the outer side of the first base, a first flexible cushion layer is arranged between the first base and the second base, and the outer side of the second base is sleeved with a second flexible cushion layer; a positioning structure is arranged on the bottom face of the first base and used for being matched with an automobile body longitudinal beam or a control arm assembly. The bottom face of the second base makes contact with the first flexible cushion layer, and the top face of the second base is used for being matched with a spring end lift structure. The split type spring seat assembly can solve the assembling problem of the lift springs at the two ends, and it is guaranteed that the left posture and the right posture of a whole vehicle are consistent after the lift springs at the two ends are assembled; and the problem of abnormal sound caused by collision between the spring transition ring and the spring end ring in the moving process of a large-load vehicle can be effectively avoided, and the service life of parts of the whole vehicle is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle accessories, in particular to a split spring seat assembly, a suspension assembly and a vehicle. BACKGROUND

[0002] The statements herein are provided only to enhance understanding of the present application and are not necessarily intended to constitute the prior art.

[0003] At present, some vehicles use air spring suspensions and spiral spring suspensions to share the platform vehicle body longitudinal beam design, and the spring seat on the vehicle body longitudinal beam is inclined, and the spring adopts a stacked coil form. However, for some vehicles with heavy load, the spring needs to bear a large load, so the spring is required to have high stiffness, which makes the matched spring wire diameter thicker. During the movement of the spring under load, the end coils of the thick wire diameter spring are prone to collide with each other, which can cause the paint film on the end of the spring to fall off, and the spring is prone to rust and corrosion problems, which can eventually lead to the risk of spring breakage, affecting the driving safety and reliability of the vehicle.

[0004] The prior art discloses a spring rubber pad, which comprises a rubber pad body, a first limiting block is arranged on a limiting portion of the rubber pad body, and the starting end of the spring is in abutment with the first limiting block during installation of the spring, so that the installation position of the spring is limited. Although the above-mentioned spring rubber pad can play a certain protective role on the spring and avoid the collision phenomenon, the above-mentioned scheme cannot effectively assemble the two-end lift spring, and the structural strength cannot meet the requirements of heavy load vehicles. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a split spring seat assembly, a suspension assembly and a vehicle, which can solve the assembly problem of the two-end lift spring, ensure that the left and right attitudes of the vehicle are consistent after the two-end lift spring is assembled, and effectively avoid the problem of knocking and abnormal noise between the over-coil spring and the spring end coil during the movement of the heavy load vehicle, thereby effectively improving the service life of the vehicle parts.

[0006] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme: In a first aspect, the embodiments of the present application provide a split spring seat assembly, which comprises a first base and a second base, the second base is sleeved outside the first base, and a first flexible pad layer is arranged between the first base and the second base, and a second flexible pad layer is sleeved outside the second base. The bottom surface of the first base has a positioning structure, and the positioning structure is used to cooperate with the vehicle body longitudinal beam or the control arm assembly; the bottom surface of the second base is in contact with the first flexible pad layer, and the top surface of the second base is used to cooperate with the spring end lift structure.

[0007] As a further implementation manner, the first base comprises a first base body, and a preset angle is formed between the top surface and the bottom surface of the first base body; The top surface of the first base body is provided with a support table, which is a cylindrical structure with a cavity in the inside, and the central axis of the support table is perpendicular to the top surface of the first base body.

[0008] As a further implementation manner, the inner wall of the support table is uniformly provided with a plurality of reinforcing ribs, which are used to bear lateral force when the vehicle is moving.

[0009] As a further implementation manner, one side of the reinforcing rib is connected with the inner wall of the support table, and the other side is connected with a support ring at the center of the support table. The top surface of the reinforcing rib is an inclined transition surface, so that the height of the support ring is lower than the height of the support table.

[0010] As a further implementation manner, the support table protrudes from the top surface of the second base and the second flexible pad layer.

[0011] As a further implementation manner, the second base comprises a second base body and a limiting sleeve, and the limiting sleeve is arranged at the center of the second base body. The top surface of the second base body and the limiting sleeve are both spiral surfaces.

[0012] As a further implementation manner, the second flexible pad layer is shaped to be adapted to the second base, so that the second flexible pad layer is connected with the second base.

[0013] As a further implementation manner, the positioning structure comprises a main positioning part and a vice positioning part, the main positioning part is arranged at the center of the bottom surface of the first base, and a clamping structure is arranged outside the main positioning part. The vice positioning part is arranged close to the edge of the first base.

[0014] In a second aspect, the embodiments of the present application further provide a suspension assembly, which comprises a control arm assembly, a coil spring and the split type spring seat assembly, and the coil spring is connected with the vehicle body longitudinal beam or the control arm assembly through the split type spring seat assembly.

[0015] In a third aspect, the embodiments of the present application further provide a vehicle, which is provided with the suspension assembly.

[0016] The beneficial effects of the present application are as follows: (1) The split spring seat assembly of the present application is sequentially provided with a first base, a first flexible pad layer, a second base and a second flexible pad layer from inside to outside, the first base and the second base can cooperate to enhance the structural strength of the spring seat assembly; the first flexible pad layer can make the second base better adhere to the first base and further reduce the abnormal sound that may be generated between the second base and the first base when the vehicle moves; the second flexible pad layer avoids the abnormal sound generated by the direct contact between the coil spring and the second base; therefore, the split spring seat assembly can avoid the generation of abnormal sound while ensuring the structural strength, meeting the requirements of heavy load vehicles.

[0017] (2) The first base of the present application is matched with the vehicle body through the main positioning part and the auxiliary positioning part, and a plurality of reinforcing ribs are uniformly distributed in the first base, which is embedded into the inside of the vehicle body when the spring seat assembly is assembled with the vehicle body, and can bear a certain lateral force when the vehicle moves, so as to resist the distortion such as torsion and bending caused by the lateral force, and ensure the reliability of the connection between the spring seat assembly and the vehicle body.

[0018] (3) The bottom surface of the first base of the present application is a plane, and the top surface is an inclined surface, the mounting surface of the spring seat assembly is adjusted to a plane to realize the assembly with the vehicle body longitudinal beam; the bottom surface of the second base is adhered to the first flexible pad layer, the top surface is a spiral surface, and the second base top surface is provided with a second flexible pad layer matched with the outer shape thereof, and the second flexible pad layer also has a spiral surface, so that the split spring seat assembly can match the structure with lift springs at both ends, can effectively solve the assembly problem of the lift spring at both ends, and can ensure that the left and right attitudes of the vehicle are consistent after the spring assembly. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and the explanation thereof serve to explain the present application, and do not constitute an improper limitation of the present application.

[0020] Figure 1 is a split spring seat assembly installation schematic diagram according to one or more embodiments of the present application; Figure 2 is a split spring seat assembly cross-sectional view according to one or more embodiments of the present application; Fig. 3(a) is a first base perspective view according to one or more embodiments of the present application; Fig. 3(b) is a first base front view according to one or more embodiments of the present application; Figure 4 is a first flexible pad layer structure schematic diagram according to one or more embodiments of the present application; Figure 5 is a second base structure schematic diagram according to one or more embodiments of the present application; Figure 6is a second flexible cushion structure schematic diagram according to one or more embodiments of the present application.

[0021] Wherein, 1, spring seat assembly, 2, vehicle body, 3, coil spring, 4, control arm assembly, 5, shock absorber assembly; 11, first base, 12, second base, 13, first flexible cushion, 14, second flexible cushion; 111, first base body, 112, support table, 113, reinforcing rib, 114, support ring, 115, main positioning part, 116, clamping structure, 117, auxiliary positioning part;121, second base body, 122, limiting sleeve; 1111, first top surface, 1112, first bottom surface;1131, first end surface, 1132, second end surface, 1133, inclined transition surface;1211, second top surface, 1212, second bottom surface, 1213, step surface. DETAILED DESCRIPTION

[0022] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0023] For the convenience of description, if the words "up", "down", "left", "right" appear in the present application, they only mean the same direction as the upper, lower, left and right directions of the drawing itself, and do not limit the structure, but only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a specific orientation, structure and operation, therefore it cannot be understood as a limitation on the present application. In the description of the present application, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] Example 1 For heavy load vehicles, the suspension chassis adopts two end with lift spring, the present embodiment provides a split type spring seat assembly, which is a spring seat matched with two end with lift spring, as shown in Figure 2 The main components include first base 11, second base 12, first flexible cushion 13 and second flexible cushion 14, which are arranged from inside to outside in sequence, forming a split type spring seat assembly 1. The spring seat assembly of the present embodiment is arranged at the matching end of the coil spring 3 and the vehicle body 2, realizing the connection of the two end with lift type coil spring 3 with the vehicle body 2 and the control arm assembly 4.

[0025] The first base 11 is used to cooperate with the vehicle body 2, as shown in Figures 3(a) and 3(b). The first base 11 includes a first base body 111 and a support platform 112 connected as one piece. The cross-section of the first base body 111 is circular. Taking the mating surface of the first base body 111 and the vehicle body 2 as the first bottom surface 1112, the other side surface of the first base body 111 and the first bottom surface 1112 opposite to the first bottom surface 1112 is the first top surface 1111. The first bottom surface 1112 is a plane. The first top surface 1111 is inclined relative to the first bottom surface 1112, that is, the two form a certain angle.

[0026] A support platform 112 is positioned at the center of the first top surface 1111, and the connection between the support platform 112 and the first top surface 1111 has an arc transition. In this embodiment, the support platform 112 has a cylindrical structure, and the interior of the support platform 112 is a cavity. The central axis of the support platform 112 is perpendicular to the first top surface 1111. Figure 2 As shown, the inner wall of the support platform 112 is provided with reinforcing ribs 113. When the spring seat assembly 1 is assembled with the body 2, it is embedded inside the body 2. When the vehicle moves, it can withstand a certain lateral force to resist the torsion, bending and other deformations caused by the lateral force, prevent the support platform 112 from being damaged due to force, and ensure the reliability of the connection between the spring seat assembly and the body 2.

[0027] Multiple reinforcing ribs 113 are evenly distributed along the circumference of the inner wall of the support platform 112. The number and spacing of the reinforcing ribs 113 are set according to actual requirements. Figure 2 As shown, each reinforcing rib 113 is axially arranged along the inner wall of the support platform 112, with the end face where the reinforcing rib 113 connects to the inner wall of the support platform 112 as the first end face 1131 and the other end face as the second end face 1132. The height of the first end face 1131 is adapted to the depth of the cavity of the support platform 112, i.e., the first end face 1131 extends from the top to the bottom of the cavity of the support platform 112; the height of the second end face 1132 is lower than the height of the first end face 1131, and the tops of the second end face 1132 and the first end face 1131 are connected by an inclined transition surface 1133. A support ring 114 is coaxially arranged inside the support platform 112, and the support ring 114 is a ring-shaped structure with an internal cavity. The second end face 1132 of the reinforcing rib 113 connects to the outer wall of the support ring 114. Multiple reinforcing ribs 113 form a bowl-shaped structure between the support platform 112 and the support ring 114, which helps to further optimize the local stress distribution, avoid stress concentration in key parts such as the bottom of the support platform 112 that could lead to cracking, and enhance the overall stability and durability of the support platform 112.

[0028] In this embodiment, the longitudinal beams of the vehicle body are formed by die casting of aluminum alloy, and the reinforcing ribs 113 are also made of aluminum alloy.

[0029] like Figure 2As shown in Figures 3(a) and 3(b), the first bottom surface 1112 is provided with a positioning structure, which is used to assemble the vehicle body longitudinal beam or control arm assembly 4. In this embodiment, the positioning structure includes a main positioning part 115 and a secondary positioning part 117, which work together to achieve precise positioning and assembly of the spring seat assembly. The main positioning part 115 is located at the center of the first bottom surface 1112 and is perpendicular to the first bottom surface 1112; a snap-fit ​​structure 116 is provided on the outside of the main positioning part 115 to facilitate the first base 11 snapping into the vehicle body longitudinal beam or control arm assembly 4 during assembly. In this embodiment, two snap-fit ​​structures 116 are provided on the outside of the main positioning part 115, and the snap-fit ​​structures 116 are symmetrically arranged with respect to the main positioning part 115; it can be understood that in other embodiments, the number of snap-fit ​​structures can be increased according to actual requirements.

[0030] The secondary positioning part 117 is located near the edge of the first bottom surface 1112 and has a certain distance between it and the main positioning part 115. The secondary positioning part 117 adopts a positioning pin, and its height and diameter are smaller than those of the main positioning part 115. By setting the secondary positioning part 117, it is easy to accurately position the spring seat assembly 1 and the body 2 during assembly, so that the first base 11 and the inclined surface of the body longitudinal beam can be leveled after they are fitted together.

[0031] A first flexible pad 13 is provided between the outer wall of the first base 11 and the inner wall of the second base 12, such as Figure 4 As shown, the first flexible pad 13 is adapted to the outer wall of the first base 11, and it wraps the support platform 112 and the first top surface 1111 inside. By setting the first flexible pad 13, the fitting gap between the second base 12 and the first base 11 is filled, so that the second base 12 and the first base 11 fit better, and further reduce the abnormal noise that may be generated between the second base 12 and the first base 11 when the vehicle moves.

[0032] The second base 12 is fitted onto the outside of the first flexible pad 13, such as Figure 5 As shown, the second base 12 includes a second base body 121 and a limiting sleeve 122 connected as one piece. The second base body 121 has a second top surface 1211 and a second bottom surface 1212, wherein the second top surface 1211 contacts the second flexible pad 14, and the second bottom surface 1212 contacts the first flexible pad 13. The limiting sleeve 122 is located at the center of the second top surface 1211, and the limiting sleeve 122 and the interior of the second base body 121 form a through cavity. The second top surface 1211 has a single helical structure to form a stepped surface 1213 on the outer wall of the limiting sleeve 122 to match the lift structure of the helical spring 3. The top surface of the limiting sleeve 122 also has a helical structure (helical surface), and the highest point of the limiting sleeve 122 is lower than the height of the support platform 112 of the first base 11, so that the support platform 112 protrudes from the second base 12.

[0033] like Figure 6As shown, the outer shape of the second flexible pad layer 14 is adapted to the second base 12 to wrap the second top surface 1211 and the limiting platform, thus the main part of the second flexible pad layer 14 has a spiral surface that is attached to the second top surface 1211. By setting the second flexible pad layer 14, the abnormal sound caused by the direct contact between the coil spring 3 and the second base 12 is avoided. In this embodiment, the first flexible pad layer 13 and the second flexible pad layer 14 are cooperated to further avoid the generation of abnormal sound.

[0034] In this embodiment, the first flexible pad layer 13 and the second flexible pad layer 14 are made of rubber material.

[0035] When the spring seat assembly of this embodiment is assembled with the vehicle body 2, the first base 11 is first clamped into the corresponding matching hole of the vehicle body 2 through the main positioning part 115 and the auxiliary positioning part 117, then the coil spring 3 is placed on the spring pad of the control arm assembly 4, and then the second flexible pad layer 14, the second base 12 and the first flexible pad layer 13 are sequentially assembled to form a spring seat sub-assembly. The above assembled spring seat sub-assembly is placed on the upper end of the coil spring 3 with lift and matched; the rear suspension with the coil spring 3 and the spring seat sub-assembly is lifted, and the first flexible pad layer 13 is aligned and matched with the first base 11 for assembly. The above assembly process can realize the assembly of the coil spring 3 with lift at both ends with large load and large stiffness, and ensure the consistency of the left and right attitudes of the vehicle.

[0036] The split spring seat assembly of this embodiment is composed of four layers of structure, i.e. two layers of metal base and two layers of flexible pad layer, which can ensure the overall strength of the spring seat assembly 1, meet the requirements of large load vehicles, and avoid abnormal sound.

[0037] Embodiment 2: This embodiment provides a suspension assembly, as shown in Figure 1 The suspension assembly comprises a control arm assembly 4, a coil spring 3, a shock absorber assembly 5 and the split spring seat assembly described in embodiment 1. The top end of the coil spring 3 is connected to the vehicle body longitudinal beam through the split spring seat assembly, and the bottom end of the coil spring 3 is connected to the control arm assembly 4 through the split spring seat assembly. The shock absorber assembly 5 is connected between the control arm assembly 4 and the vehicle body 2.

[0038] Embodiment 3: This embodiment provides a vehicle provided with the suspension assembly described in embodiment 2. The vehicle body 2 is an integrated die-cast vehicle body 2, the vehicle body longitudinal beam has a certain draft angle, and the mating surface of the vehicle body 2 and the spring seat assembly is an inclined surface.

[0039] For large load vehicles, when using large stiffness springs, if two end flat ring structure springs or one end flat ring and one end with lift structure springs are used, in the process of vehicle movement, the spring end rings are easy to knock each other when the spring is excessively compressed, thereby producing abnormal noise, affecting the comfort and quality of the vehicle. The embodiment adopts a two-end-lift-structure coil spring 3 and a split type spring seat assembly matched with the coil spring 3, which not only can effectively avoid abnormal noise caused by the knock between the spring transition ring and the spring end ring in the process of vehicle movement, but also can effectively improve the service life of the whole vehicle parts and the corrosion resistance of the whole vehicle. In addition, the split type spring seat assembly can effectively solve the assembly problem of the two-end-lift spring, and can ensure that the left and right attitudes of the whole vehicle are consistent after the spring is assembled.

[0040] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A split spring seat assembly, characterized by, The first base and the second base are sleeved outside the first base, and the first flexible pad layer is arranged between the first base and the second base, and the second flexible pad layer is sleeved outside the second base; The bottom surface of the first base is provided with a positioning structure for matching a vehicle body longitudinal beam or a control arm assembly; the top surface of the second base is used for matching a spring end lift structure.

2. The split spring seat assembly of claim 1, wherein, The first base comprises a first base body, and a set angle is formed between the top surface and the bottom surface of the first base body; The top surface of the first base body is provided with a support table in a cylindrical structure with a cavity inside, and the central axis of the support table is perpendicular to the top surface of the first base body.

3. The split spring seat assembly of claim 2, wherein, The inner wall of the support table is uniformly distributed with a plurality of reinforcing ribs for bearing lateral force when the vehicle is moving.

4. The split spring seat assembly of claim 3, wherein, One side of the reinforcing rib is connected with the inner wall of the support table, and the other side is connected with a support ring at the center of the support table. The top surface of the reinforcing rib is an inclined transition surface, so that the height of the support ring is lower than the height of the support table.

5. The split spring seat assembly of claim 2, wherein, The support table protrudes from the top surface of the second base and the second flexible pad layer.

6. The split spring seat assembly of claim 1 or 5, wherein, The second base comprises a second base body and a limiting sleeve arranged at the center of the second base body. The top surface of the second base body and the limiting sleeve is a spiral surface.

7. A split spring seat assembly as in claim 6, wherein, The second flexible pad layer is adapted to the shape of the second base, so that the second flexible pad layer is matched with the second base.

8. The split spring seat assembly of claim 1, wherein, The positioning structure comprises a main positioning part and a vice positioning part, the main positioning part is arranged at the center of the bottom surface of the first base, and the outer side of the main positioning part is provided with a clamping structure. The vice positioning part is arranged close to the edge of the first base.

9. A suspension assembly characterized by, The suspension assembly comprises a control arm assembly, a coil spring and the split spring seat assembly according to any one of claims 1-8, the coil spring is connected with the vehicle body longitudinal beam or the control arm assembly through the split spring seat assembly.

10. A vehicle characterized by comprising: The suspension assembly according to claim 9 is installed.

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