Limiting support for steel plate spring and suspension system

Abstract

The utility model relates to a limiting support for a steel plate spring and a suspension system.The limiting support for the steel plate spring comprises a mounting plate, a limiting plate and reinforcing ribs, and a weight reduction part is arranged on the mounting plate; the limiting plate horizontally extends to be arranged on one side of the mounting plate; the reinforcing rib is arranged on the side, located on the limiting plate, of the mounting plate, one end of the reinforcing rib is connected with the side wall of the mounting plate, the other end of the reinforcing rib is connected with the limiting plate, and a lightening hole is defined by the reinforcing rib, the side wall of the mounting plate and the limiting plate. According to the limiting support for the steel plate spring, through cooperation of the mounting plate, the limiting plate and the reinforcing ribs, it can be guaranteed that the limiting support plays a certain role in limiting displacement of the steel plate spring and can buffer impact force, and meanwhile the weight of the limiting support can be reduced through cooperation of the weight reducing part and the weight reducing hole; therefore, the weight of the whole vehicle can be reduced, and the purpose of light weight of the vehicle can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle suspension systems, and in particular to a limit bracket for a leaf spring and a suspension system. Background Art

[0002] With the increasing popularity and demand for commercial vehicles, the current requirements for commercial vehicle weight and cost have increased, making lightweight and low-cost models an urgent market demand. The suspension system of commercial vehicles includes limit brackets, which are used to limit the displacement of leaf springs and buffer impact forces.

[0003] However, the design of the limit bracket in the related art is relatively thick and heavy, which increases the weight of the entire vehicle and is not conducive to achieving the goal of lightweighting the vehicle. Utility Model Content

[0004] Based on this, it is necessary to provide a limit bracket and suspension system for leaf springs to address the problem that the limit bracket in the related art is relatively thick and heavy, which is not conducive to achieving the goal of lightweighting the vehicle.

[0005] In a first aspect, the present application provides a limit bracket for a leaf spring, comprising:

[0006] A mounting plate, wherein a weight-reducing portion is provided on the mounting plate;

[0007] A limiting plate is horizontally extended and arranged on one side of the mounting plate;

[0008] The reinforcing rib is arranged on one side of the mounting plate located on the limiting plate, and one end of the reinforcing rib is connected to the side wall of the mounting plate, and the other end of the reinforcing rib is connected to the limiting plate. The reinforcing rib, the side wall of the mounting plate and the limiting plate enclose a weight-reducing hole.

[0009] In one embodiment, the mounting plate includes a first mounting sub-plate and a second mounting sub-plate, the first mounting sub-plate is located on one side of the limiting plate, and the second mounting sub-plate is located on the other side of the limiting plate, and the weight reduction portion includes a first weight reduction groove and a second weight reduction groove, the first weight reduction groove is arranged on the first mounting sub-plate, and the second weight reduction groove is arranged on the second mounting sub-plate.

[0010] In one embodiment, one end of the reinforcing rib connected to the mounting plate and one end of the reinforcing rib connected to the limiting plate are both arranged in an arc transition.

[0011] In one embodiment, a reinforcement portion is provided on a side of the mounting plate facing away from the limiting plate.

[0012] In one embodiment, the reinforcing portion includes a first boss and a second boss. The first boss is arranged on the side wall of the first mounting sub-plate away from the limiting plate, and the second boss is arranged on the side wall of the second mounting sub-plate away from the limiting plate.

[0013] In one embodiment, the connection between the first mounting sub-plate and the limiting plate and the connection between the second mounting sub-plate and the limiting plate are arranged in an arc transition.

[0014] In one embodiment, the thickness of the limiting plate decreases gradually from the side away from the mounting plate.

[0015] In one embodiment, the limit bracket for the leaf spring is suitable for a suspension system, which includes a vehicle frame, a mounting plate provided with a mounting hole, and the limit bracket for the leaf spring is installed on the vehicle frame through the cooperation of the mounting piece and the mounting hole.

[0016] In one embodiment, the thickness of the end portions of the limiting plate increases gradually from both sides to the middle along the direction of the longitudinal beam of the frame.

[0017] In a second aspect, the present application provides a suspension system, comprising any one of the leaf spring limit brackets provided in the first aspect, the suspension system further comprising:

[0018] The frame and the leaf spring are installed on the frame with a limit bracket;

[0019] axles;

[0020] A leaf spring support is provided on the axle;

[0021] A plurality of leaf springs, one end of the leaf spring is connected to the axle through a leaf spring support, and the other end of the leaf spring is connected to the frame through a limit bracket.

[0022] The above-mentioned limit bracket and suspension system for leaf springs, wherein the limit bracket for leaf springs includes a mounting plate, a limit plate and a reinforcing rib, the mounting plate is provided with a weight-reducing portion; the limit plate is horizontally extended and arranged on one side of the mounting plate; the reinforcing rib is arranged on the side of the mounting plate located at the limit plate, and one end of the reinforcing rib is connected to the side wall of the mounting plate, and the other end of the reinforcing rib is connected to the limit plate, and the reinforcing rib, the side wall of the mounting plate and the limit plate enclose a weight-reducing hole. The limit bracket for leaf springs in the present application, through the cooperation of the mounting plate, the limit plate and the reinforcing rib, can ensure that the limit bracket plays a certain role in limiting the displacement of the leaf spring and can buffer the impact force, and can also reduce the weight of the limit bracket through the cooperation of the weight-reducing portion and the weight-reducing hole, thereby helping to reduce the weight of the entire vehicle, and further conducive to achieving the goal of lightweighting the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 Schematic diagram of the structure of the limit bracket for the leaf spring in some embodiments of the present application;

[0025] Figure 2 This is a schematic diagram illustrating the back structure of the mounting plate in some embodiments of the present application;

[0026] Figure 3 This is a structural diagram illustrating the connection relationship between the reinforcing ribs, the mounting plate, and the limiting plate in some embodiments of the present application;

[0027] Figure 4 This is a structural diagram illustrating the positional relationship between the mounting holes and the assembly holes in some embodiments of the present application;

[0028] Figure 5 This is a structural schematic diagram used to embody the suspension system in some embodiments of the present application.

[0029] Description of Figure Numbers:

[0030] 100. Mounting plate; 110. First mounting sub-plate; 112. First weight-reducing groove; 114. First boss; 120. Second mounting sub-plate; 122. Second weight-reducing groove; 124. Second boss; 130. Mounting hole; 140. Spring cushion; 200. Limiting plate; 210. Assembly hole; 300. Reinforcing rib; 310. Weight-reducing hole; 400. Frame; 500. Axle; 600. Leaf spring support; 700. Leaf spring. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0034] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0035] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0037] In order to solve the problem that the design of the limit bracket in the related art is relatively heavy and is not conducive to achieving the goal of lightweighting the vehicle, firstly, referring to Figures 1 to 3 An embodiment of the present application provides a limiting bracket for a leaf spring, comprising a mounting plate 100, a limiting plate 200 and a reinforcing rib 300, wherein the mounting plate 100 is provided with a weight-reducing portion; the limiting plate 200 is horizontally extended and arranged on one side of the mounting plate 100; the reinforcing rib 300 is arranged on the side of the mounting plate 100 located at the limiting plate 200, and one end of the reinforcing rib 300 is connected to the side wall of the mounting plate 100, and the other end of the reinforcing rib 300 is connected to the limiting plate 200, and a weight-reducing hole 310 is enclosed between the reinforcing rib 300 and the side wall of the mounting plate 100 and the limiting plate 200.

[0038] Specifically, the mounting plate 100 , the limiting plate 200 and the reinforcing rib 300 may be integrally formed, or the mounting plate 100 and the limiting plate 200 may be integrally formed, and the reinforcing rib 300 may be fixed to the mounting plate 100 and the limiting plate 200 by welding.

[0039] The limit bracket for the leaf spring in this embodiment, through the cooperation of the mounting plate 100, the limit plate 200 and the reinforcing rib 300, can ensure that the limit bracket plays a certain limiting role in the displacement of the leaf spring 700 and can buffer the impact force. At the same time, the weight of the limit bracket can be reduced through the cooperation of the weight-reducing part and the weight-reducing hole 310, thereby helping to reduce the weight of the entire vehicle, and further contributing to the goal of lightweighting the vehicle.

[0040] Reference Figure 1 In some embodiments, the mounting plate 100 includes a first mounting sub-plate 110 and a second mounting sub-plate 120. The first mounting sub-plate 110 is located on one side of the limiting plate 200, and the second mounting sub-plate 120 is located on the other side of the limiting plate 200. The weight reduction portion includes a first weight reduction groove 112 and a second weight reduction groove 122. The first weight reduction groove 112 is arranged on the first mounting sub-plate 110, and the second weight reduction groove 122 is arranged on the second mounting sub-plate 120.

[0041] The limiting bracket is symmetrically arranged along the vertical centerline. The first mounting sub-plate 110 is located above the limiting plate 200, and the second mounting sub-plate 120 is located below the limiting plate 200. The length of the second mounting sub-plate 120 is greater than that of the first mounting sub-plate 110. The mounting plate 100 is symmetrically arranged in the shape of a butterfly wing. The first weight-reducing groove 112 is located on the side of the first mounting sub-plate 110 away from the limiting plate 200, and the second weight-reducing groove 122 is located on the side of the second mounting sub-plate 120 away from the limiting plate 200. The notch of the second weight-reducing groove 122 is larger than the notch of the first weight-reducing groove 112. In this embodiment, there are two reinforcing ribs 300, one of which is located on one side of the notch of the first weight-reducing groove 112, and the other is located on the other side of the notch of the first weight-reducing groove 112, which helps to enhance the impact resistance of the notch of the first weight-reducing groove 112.

[0042] Specifically, the first weight-reducing groove 112 cooperates with the second weight-reducing groove 122 to reduce the weight of the limiting bracket, thereby helping to reduce the overall weight of the vehicle.

[0043] Reference Figure 1 and Figure 3 In some embodiments, one end of the reinforcing rib 300 connected to the mounting plate 100 and one end of the reinforcing rib 300 connected to the limiting plate 200 are both configured in an arc transition.

[0044] Specifically, the end connecting the reinforcing rib 300 to the mounting plate 100 and the end connecting the reinforcing rib 300 to the limiting plate 200 are both set in a circular arc transition, which helps to avoid the occurrence of fracture due to stress concentration at the connection between the mounting plate 100 and the limiting plate 200 when subjected to force. In other words, it helps to enhance the structural strength of the leaf spring 700 bracket.

[0045] Reference Figure 2 In some embodiments, a reinforcement portion is provided on the side of the mounting plate 100 facing away from the limiting plate 200 .

[0046] Specifically, since the mounting plate 100 may be deformed when subjected to a large impact force, in order to enhance the ability of the mounting portion to resist the impact force, a reinforcement portion is provided on the side of the mounting plate 100 away from the limiting plate 200 .

[0047] Reference Figure 2 In some embodiments, the reinforcing portion includes a first boss 114 and a second boss 124. The first boss 114 is arranged on the side wall of the first mounting sub-plate 110 away from the limiting plate 200, and the second boss 124 is arranged on the side wall of the second mounting sub-plate 120 away from the limiting plate 200.

[0048] The first boss 114 is integrally formed with the first mounting sub-plate 110 , and the second boss 124 is integrally formed with the second mounting sub-plate 120 . The cross-sectional area of the first boss 114 is greater than that of the second boss 124 .

[0049] Specifically, a first boss 114 is provided on the back of the first mounting sub-plate 110, and a second boss 124 is provided on the back of the second mounting sub-plate 120, which helps to enhance the structural strength of the mounting plate 100, thereby helping to enhance the impact resistance of the mounting plate 100, and further helping to enhance the overall impact resistance of the limiting bracket.

[0050] Reference Figure 3 In some embodiments, the connection between the first mounting sub-plate 110 and the limiting plate 200 and the connection between the second mounting sub-plate 120 and the limiting plate 200 are arranged in an arc transition.

[0051] Specifically, the connection between the first mounting sub-plate 110 and the limiting plate 200 and the connection between the second mounting sub-plate 120 and the limiting plate 200 are both set to be arc transitions, which helps to enhance the connection strength between the limiting plate 200 and the mounting plate 100.

[0052] In some embodiments, the thickness of the limiting plate 200 decreases gradually from the side away from the mounting plate 100 .

[0053] Specifically, setting the thickness of the limit plate 200 to decrease from the side away from the mounting plate 100 helps to ensure the structural strength of the connection between the limit plate 200 and the mounting plate 100, while also ensuring that the weight of the limit plate 200 does not cause the overall weight of the limit bracket to increase too much, thereby ensuring that the limit bracket and the entire vehicle meet the lightweight design goals.

[0054] Reference Figure 1 、 Figure 4 and Figure 5 In some embodiments, the leaf spring limit bracket is suitable for a suspension system, which includes a frame 400, a mounting plate 100 having a mounting hole 130, and the leaf spring limit bracket is installed on the frame 400 through the cooperation of the mounting piece and the mounting hole 130.

[0055] The first mounting sub-plate 110 and the second mounting sub-plate 120 each have two mounting holes 130, located near the edge. The mounting members include bolts that engage the mounting holes 130, allowing the leaf spring to be mounted on a sidewall of the vehicle frame 400 using a retaining bracket. The four mounting holes 130 are also symmetrically arranged about the vertical centerline of the retaining bracket.

[0056] Specifically, through the cooperation between the mounting piece and the mounting hole 130, the leaf spring limiting bracket and the vehicle frame 400 are detachably connected, which is convenient for subsequent inspection or maintenance by workers.

[0057] In some embodiments, the thickness of the end portions of the limiting plate 200 increases gradually from both sides to the middle along the longitudinal beam direction of the vehicle frame 400 .

[0058] Specifically, the thickness of the end of the limit plate 200 is set to increase from both sides to the middle along the longitudinal beam direction of the frame 400, which helps to enhance the structural strength of the connection between the reinforcing rib 300 and the limit plate 200, thereby further improving the impact resistance of the limit bracket, and thus helping to ensure the stability of the entire vehicle during operation.

[0059] Reference Figure 4 In some embodiments, assembly holes 210 are provided on the top walls at both ends of the limiting plate 200, and the limiting bracket for the leaf spring further includes a spring pad 140, which is connected to the limiting plate 200 through an assembly part.

[0060] The two assembly holes 210 are also symmetrically arranged about the center line of the limiting bracket along the vertical direction. The assembly parts include assembly bolts.

[0061] Specifically, through the cooperation of the assembly hole 210 and the assembly bolt, the spring pad 140 can be detachably connected to the limit plate 200. When the limit bracket is subjected to a large impact force, the spring pad 140 can alleviate the impact force on the limit bracket to a certain extent; in addition, as the use time increases, the spring pad 140 can also be replaced according to use requirements to ensure the buffering and impact resistance of the limit bracket.

[0062] The limit bracket for the leaf spring in the present application can ensure that the limit bracket plays a certain limiting role in the displacement of the leaf spring 700 and can buffer the impact force through the cooperation of the mounting plate 100, the limit plate 200 and the reinforcing rib 300. At the same time, it can also reduce the weight of the limit bracket through the cooperation of the weight-reducing part and the weight-reducing hole 310, thereby helping to reduce the weight of the entire vehicle, and further contributing to the goal of lightweighting the vehicle.

[0063] Secondly, refer to Figure 5 An embodiment of the present application provides a suspension system, which is applied to any one of the leaf spring limit brackets provided in the first aspect above. The suspension system includes a frame 400, an axle 500, a leaf spring 700 support 600 and a plurality of leaf springs 700. The leaf spring limit bracket is installed on the frame 400, the leaf spring 700 support 600 is set on the axle 500, one end of the leaf spring 700 is connected to the axle 500 through the leaf spring 700 support 600, and the other end of the leaf spring 700 is connected to the frame 400 through the limit bracket.

[0064] Among them, the frame 400 is connected to the axle 500, and the frame 400 is arranged above the axle 500. The leaf spring is installed on the side wall of one side of the frame 400 through a limit bracket by bolts; the leaf spring 700 support 600 is fixedly connected to the top wall of the axle 500.

[0065] Specifically, the frame 400 is the primary load-bearing structure of a commercial vehicle, responsible for supporting and connecting the vehicle's various components. Within the suspension system, the frame 400 plays a fundamental role in securing and supporting the leaf springs 700 and the retaining brackets. The leaf spring 700 support 600 is responsible for bearing the weight of the leaf spring 700 and transmitting force to the axle 500. The leaf spring 700 support 600 serves as the connection point between the leaf spring 700 and the axle 500, ensuring that the leaf spring 700 effectively absorbs and transmits vibrations. The leaf spring 700 is an elastic element in the suspension system, responsible for absorbing road impact and transmitting force to the frame 400.

[0066] When the vehicle travels on uneven roads, the collision between the leaf spring 700 support 600 and the stop plate 200 generates an impact force. The design of the reinforcing rib 300, first boss 114, and second boss 124 aligns with the direction of the impact force, providing a buffering effect and ensuring that the stop bracket can effectively transmit the impact force and protect the frame 400 and leaf spring 700.

[0067] The suspension system in the present application, after being equipped with any one of the limit brackets for leaf springs provided in the first aspect above, also has the characteristics of strong impact resistance and light weight, which helps to achieve the lightweight design goal of the vehicle and helps to reduce production costs.

[0068] In the description of this specification, reference to the terms "some embodiments" or "other embodiments" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0069] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A limit bracket for a leaf spring, characterized in that: The leaf spring limiting bracket includes: A mounting plate, wherein a weight-reducing portion is provided on the mounting plate; A limiting plate extending horizontally and arranged on one side of the mounting plate; A reinforcing rib is arranged on one side of the mounting plate located at the limiting plate, and one end of the reinforcing rib is connected to the side wall of the mounting plate, and the other end of the reinforcing rib is connected to the limiting plate. The reinforcing rib, the side wall of the mounting plate and the limiting plate enclose a weight-reducing hole.

2. The limit bracket for a leaf spring according to claim 1, characterized in that: The mounting plate includes a first mounting sub-plate and a second mounting sub-plate, the first mounting sub-plate is located on one side of the limiting plate, and the second mounting sub-plate is located on the other side of the limiting plate, the weight-reducing portion includes a first weight-reducing groove and a second weight-reducing groove, the first weight-reducing groove is arranged on the first mounting sub-plate, and the second weight-reducing groove is arranged on the second mounting sub-plate.

3. The limit bracket for a leaf spring according to claim 2, characterized in that: One end of the reinforcing rib connected to the mounting plate and one end of the reinforcing rib connected to the limiting plate are both arranged in an arc transition.

4. The limit bracket for a leaf spring according to claim 2, characterized in that: A reinforcement portion is provided on a side of the mounting plate facing away from the limiting plate.

5. The limit bracket for a leaf spring according to claim 4, characterized in that: The reinforcing portion includes a first boss and a second boss. The first boss is arranged on the side wall of the first mounting sub-plate away from the limiting plate, and the second boss is arranged on the side wall of the second mounting sub-plate away from the limiting plate.

6. The limit bracket for a leaf spring according to claim 2, characterized in that: The connection between the first mounting sub-plate and the limiting plate and the connection between the second mounting sub-plate and the limiting plate are arranged in an arc transition.

7. The limit bracket for a leaf spring according to claim 2, characterized in that: The thickness of the limiting plate decreases gradually from the side away from the mounting plate.

8. The limit bracket for a leaf spring according to claim 1, characterized in that: The invention is applicable to a suspension system, wherein the suspension system comprises a vehicle frame, the mounting plate is provided with a mounting hole, and the leaf spring is mounted on the vehicle frame by means of a limiting bracket which cooperates with a mounting piece and the mounting hole.

9. The limit bracket for a leaf spring according to claim 8, characterized in that: The thickness of the end portions of the limiting plate increases gradually from both sides to the middle along the direction of the frame longitudinal beam.

10. A suspension system, characterized in that: The suspension system comprises a limit bracket for a leaf spring according to any one of claims 1 to 9, and further comprises: a vehicle frame, the leaf spring being mounted on the vehicle frame by a limiting bracket; axles; a leaf spring support, arranged on the axle; A plurality of leaf springs, one end of each leaf spring being connected to the axle via the leaf spring support, and the other end of each leaf spring being connected to the vehicle frame via the limiting bracket.

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