WO2018201449A1 - 板式弹簧组件及车辆悬挂装置 - Google Patents
板式弹簧组件及车辆悬挂装置 Download PDFInfo
- Publication number
- WO2018201449A1 WO2018201449A1 PCT/CN2017/083228 CN2017083228W WO2018201449A1 WO 2018201449 A1 WO2018201449 A1 WO 2018201449A1 CN 2017083228 W CN2017083228 W CN 2017083228W WO 2018201449 A1 WO2018201449 A1 WO 2018201449A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- leaf spring
- elastic pad
- spring assembly
- vehicle suspension
- disposed
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/11—Leaf spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/14—Plastic spring, e.g. rubber
Definitions
- the present invention relates to the technical field of vehicle suspension devices, and more particularly to a leaf spring assembly and a vehicle suspension device.
- Composite materials especially Fiber Reinforced Polymer/Plastic (FRP) are gradually being replaced due to their light weight, high specific stiffness, high specific strength, long life, corrosion resistance and good designability.
- Traditional engineering materials such as metal materials and wood, are widely used in aerospace, aerospace, marine, construction, automotive, sports and medical equipment industries. In recent years, composite materials have been used more and more widely for the use of leaf springs for vehicle suspension.
- the common composite plate springs for vehicle suspensions are mostly single-leaf spring structures. Although the structure is simple, it is only suitable for vehicle suspensions of equal stiffness, and cannot meet the gradient stiffness of stiffness as a function of load. suspension.
- An object of the present invention is to provide a leaf spring assembly and a vehicle suspension device to solve the technical problem that the plate spring cannot satisfy the change in stiffness with load due to the prior art.
- the technical solution adopted by the present invention is: Provided a leaf spring assembly for a vehicle suspension device, comprising a first leaf spring, and a second plate disposed on a bottom side of the first leaf spring a spring, and a connecting mechanism for connecting the first leaf spring and the second leaf spring, a gap between the two ends of the second leaf spring and the first leaf spring, and the second plate
- the length of the spring is less than the length of the first leaf spring.
- the leaf spring assembly further includes a first elastic pad interposed between the first leaf spring and the second leaf spring, and the first elastic pad is disposed through the connection In the organization.
- the connecting mechanism includes a first connecting member disposed on a top side of the first leaf spring, a second connecting member disposed on a bottom side of the second leaf spring, and a first fastener,
- the first connector passes the The first fastener is fixedly coupled to the second connector.
- a second elastic pad is disposed at two ends of the second leaf spring, and a third elastic pad is disposed on the first leaf spring corresponding to the second elastic pad, The third elastic pad can abut the second elastic pad.
- first elastic pad, the second elastic pad and the third elastic pad are elastic members made of rubber or thermoplastic elastomer.
- first leaf spring and the second leaf spring are plate springs made of fiber reinforced plastic.
- the leaf spring assembly further includes a guiding mechanism fixed on the second leaf spring, the first leaf spring extending into the guiding mechanism and facing the guiding mechanism along the guiding mechanism The direction of the second leaf spring moves.
- the guiding mechanism includes a fixing member connected to the second leaf spring, and a guiding member disposed on a top side of the second leaf spring and fixedly connected with the fixing member, the guiding member A guide bracket is provided on the first leaf spring.
- the beneficial effects of the leaf spring assembly provided by the present invention are: Compared with the prior art, the leaf spring assembly provided by the present invention adopts a combination of a first leaf spring and a second leaf spring, wherein the second leaf spring There is a gap between the two ends of the first leaf spring, and the length of the second leaf spring is smaller than the length of the first leaf spring, so that the rigidity of the leaf spring assembly can be changed according to the change of the vehicle load, thereby effectively solving the present There is a technical problem that the plate spring cannot satisfy the change of the stiffness with the load, and the application range of the leaf spring assembly is expanded.
- the present invention also provides a vehicle suspension device comprising a pair of lifting ears, and the above-mentioned leaf spring assembly, wherein two ends of the first leaf spring are fixedly connected to the two lifting ears, respectively.
- the vehicle suspension device further includes a damper bracket having a U-bolt, and the connecting mechanism is convexly provided with a positioning pin, and the positioning pin is coupled to the u-bolt.
- the utility model provides the vehicle suspension device with the advantages that: the plate spring assembly is adopted, so that the rigidity of the vehicle suspension can be changed according to the change of the vehicle load, thereby effectively solving the problem that the existing vehicle suspension cannot satisfy the stiffness and the load.
- the technical problems of changing and expanding the scope of application of vehicle suspension is expanded.
- the first leaf spring and the second leaf spring of the leaf spring assembly are made of fiber reinforced plastic, the specific rigidity, specific strength and corrosion resistance of the vehicle suspension are improved, and the service life of the vehicle suspension device is prolonged.
- FIG. 1 is a perspective view of a leaf spring assembly according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing a connection mechanism in a leaf spring assembly according to an embodiment of the present invention
- FIG 3 is a cross-sectional view of a guiding mechanism in a leaf spring assembly according to an embodiment of the present invention.
- 10 - plate spring assembly 11 - first leaf spring, 12 - second leaf spring, 13 - connection mechanism, 14 - first elastic pad, 15 - second elastic pad, 16 - third elastic pad, 17 - guiding mechanism, 18-hanger, 130-positioning pin, 131_first connector, 132_second connector, 133_first fastener, 171_fixing member, 172 -guide member, 173-second Fasteners, 1721 - guide bracket, 1722 - fourth elastic pad.
- first and second are used for descriptive purposes only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
- features defining “first” and “second” may explicitly or implicitly include one or more of the features.
- the meaning of “plurality” is two or more, unless specifically defined otherwise.
- the leaf spring assembly 10 includes a first leaf spring 11, a second leaf spring 12 and a connecting mechanism 13, wherein the second leaf spring 12 is disposed on the bottom side of the first leaf spring 11; the connecting mechanism 13 is used to connect the first plate The spring 11 and the second leaf spring 12; specifically, a gap is formed between both ends of the second leaf spring 12 and the first leaf spring 11, and the length of the second leaf spring 12 is smaller than the length of the first leaf spring 11. In this way, it is ensured that the first leaf spring 11 first serves as a support and the second leaf spring 12 functions as a rear support.
- the first leaf spring 11 has a circular arc shape
- the second leaf spring 12 has a linear shape
- the second leaf spring 12 may also have a circular arc shape. , there is no single limit here.
- the first leaf spring 11 first serves as a support in the state of initial or small load of the vehicle, and therefore, the stiffness of the leaf spring assembly 10 is equal to the stiffness of the first leaf spring 11, and then the first leaf spring 11 follows The increase of the load gradually moves downward toward the second leaf spring 12, and when the vehicle load reaches a certain value, the first leaf spring 11 abuts against the second leaf spring 12, and then, the first leaf spring 11 and the second leaf spring 12 is supported by the support, and the stiffness of the leaf spring assembly 10 is equal to the sum of the stiffness of the first leaf spring 11 and the stiffness of the second leaf spring 12.
- the leaf spring assembly 10 provided by the present invention adopts a combination of a first leaf spring 11 and a second leaf spring 12, wherein both ends of the second leaf spring 12 and the first leaf spring are used in comparison with the prior art. There is a gap between the 11 and the length of the second leaf spring 12 is smaller than the length of the first leaf spring 11, so that the rigidity of the leaf spring assembly 10 can be changed as the vehicle load changes, thereby effectively solving the problem that the existing leaf spring cannot be solved.
- the technical problem of satisfying the change of stiffness with load increases the application range of the leaf spring assembly.
- the first leaf spring 11 and the second leaf spring 12 are made of fiber reinforced plastic, which comprises a base material and a reinforcing fiber material, wherein the base material is a thermosetting resin, such as: polyester, ethylene Base resin, epoxy resin, polyimide, polyurethane, etc., or thermoplastic resin, such as: polyurethane, polyamide, polyterephthalic acid, etc.; reinforcing fiber material is any one of glass fiber, carbon fiber, and organic fiber. Or a few windings.
- a thermosetting resin such as: polyester, ethylene Base resin, epoxy resin, polyimide, polyurethane, etc., or thermoplastic resin, such as: polyurethane, polyamide, polyterephthalic acid, etc.
- reinforcing fiber material is any one of glass fiber, carbon fiber, and organic fiber. Or a few windings.
- the leaf spring assembly 10 further includes a first elastic pad 14, and the first elastic pad 14 is sandwiched between The first leaf spring 11 and the second leaf spring 12 are interposed, and the first elastic pad 14 is bored in the connecting mechanism 13.
- the first elastic pad 14 is preferably made of rubber or a thermoplastic elastomer.
- the thermoplastic elastomer (Tropical rubber) is referred to as TPE or TPR, which has rubber elasticity at normal temperature and has high temperature.
- the first elastic pad 14 can be fixed on the surface of the first leaf spring 11 or the surface of the second leaf spring 12 by injection molding or gluing, and has the function of wear resistance and cushioning.
- a first elastic pad 14 is disposed at a contact between the leaf spring 11 and the second leaf spring 12, avoiding direct contact between the first leaf spring 11 and the second leaf spring 12, resulting in the main body of the first leaf spring 11 and the second leaf spring 12. Wear and tear.
- the first elastic pad 14 may be an elastic member made of other materials, or may be fixed to the first leaf spring 11 and the second leaf spring by other means, according to actual conditions and requirements.
- the contact area of 12 is not limited here.
- the connecting mechanism 13 includes a first connecting member 131, a second connecting member 132 and a first fastener 133, wherein The first connecting member 131 is disposed on the top side of the first leaf spring 11; the second connecting member 132 is disposed on the bottom side of the second leaf spring 12; and the first connecting member 131 is connected to the second through the first fastener 133
- the piece 132 is fixedly connected. That is, the connecting mechanism 13 sandwiches the first leaf spring 11 and the second leaf spring 12 between the first connecting member 131 and the second connecting member 132 via the first fastener 133.
- the first fastener 133 may be a combination of a bolt and a nut, or a combination of a buckle and a card slot (not shown), of course, in other embodiments of the present invention, depending on the actual situation and needs.
- the first fastener 133 may also be another member capable of achieving a fixed connection between the first connecting member 131 and the second connecting member 132, which is not limited herein.
- the second spring spring 15 is sleeved at two ends of the second leaf spring 12, and the first leaf spring A third elastic pad 16 is disposed on the position corresponding to the second elastic pad 15 , and the third elastic pad 16 can abut the second elastic pad 15 .
- the second elastic pad 15 and the third elastic pad 16 are made of rubber or thermoplastic elastomer, and may be fixed to the outer circumference of the first leaf spring 11 or the outer circumference of the second leaf spring 12 by injection molding or gluing. Wear-resistant, cushioning effect.
- the first leaf spring 11 abuts the second leaf spring 12
- the second elastic pad 15 and the third elastic pad 16 are sleeved at the abutment of the first leaf spring 11 and the second leaf spring 12, that is, the second elastic pad 15 and the third elastic pad 16 are disposed on the first leaf spring 11
- the second elastic pad 15 abuts against the third elastic pad 16, so that the first leaf spring 11 and the second leaf spring 12 are prevented from being in direct contact, thereby causing the first leaf spring 11 and The main body of the second leaf spring 12 is worn and broken.
- the second elastic pad 15 and the third elastic pad 16 may also be elastic members made of other materials, or may be fixed to the first leaf spring by other means, according to actual conditions and requirements. 11 and the outer circumference of the second leaf spring 12 are not limited herein.
- the leaf spring assembly 10 further includes a guiding mechanism 17, which is fixedly disposed on the second leaf spring. 1 2, at the same time, the first leaf spring 11 projects into the guiding mechanism 17, and the first leaf spring 11 is movable along the guiding mechanism 17 in the direction facing the second leaf spring 12.
- the number of the guiding mechanisms 17 is one, and is fixedly disposed near one end of the second leaf spring 12.
- the first leaf spring 11 extends into the guiding mechanism 17 and can move up and down within the guiding mechanism 17, of course, according to the actual situation and
- the guiding mechanism 17 may also be two, which are respectively disposed near the two ends of the second leaf spring 12, which are not limited herein.
- the guiding mechanism 17 includes a fixing member 171 and a guiding member 172, wherein the fixing member 171 and the second plate
- the spring 12 is connected to the top side of the second leaf spring 12 and is fixedly connected to the fixing member 171.
- the guiding member 172 is provided with a guiding bracket 1721, and the first leaf spring 11 is disposed on the guiding bracket.
- the fixing member 171 can be fixedly connected to the second leaf spring 12 by adhesive means, or can be fixedly connected to the second leaf spring 12 by the second fastener 17 3 and the guiding member 172, of course, according to the actual situation.
- the fixing member 171 may be sleeved on the outer circumference of the second leaf spring 12, which is not limited herein;
- the guiding bracket 1721 may be a U-shaped frame or a rectangular frame, and is disposed around The outer circumference of the first leaf spring 11 is moved up and down in the guide bracket 1721 when the first leaf spring 11 is subjected to an external force, thus preventing the first leaf spring 11 from occurring with the second leaf spring 12 during the movement or deformation.
- the offset causes the first leaf spring 11 to break or break.
- the second fastener 173 may be a combination of a bolt and a nut, or a combination of a buckle and a card slot (not shown), of course, in other embodiments of the present invention, depending on the actual situation and needs.
- the second fastener 173 can also be a member that can achieve a fixed connection between the fixing member 171 and the guiding member 172, which is not limited herein.
- a fourth elastic pad 17 22 is disposed on the inner wall surface of the guiding bracket 1721 facing the first leaf spring 11, and the fourth elastic pad 1722 is made of rubber or thermoplastic elastomer, and can be injection molded or glued.
- the manner of fixing the guiding bracket 1721 toward the inner wall surface of the first leaf spring 11 has the function of wear resistance and cushioning, so that the direct contact between the first leaf spring 11 and the guiding bracket 1721 is avoided, thereby causing the main body of the first leaf spring 11 to wear. damage.
- a vehicle suspension device includes a pair of lifting lugs 18 and a leaf spring assembly 10, wherein two ends of the first leaf spring 11 of the leaf spring assembly 10 and two cranes respectively Ear 18 fixed connection
- the vehicle suspension device provided by the present invention adopts the leaf spring assembly 10 compared with the prior art, so that the rigidity of the vehicle suspension can be changed according to the change of the vehicle load, thereby effectively solving the problem that the existing vehicle suspension cannot be solved.
- the technical problem of satisfying the change of the stiffness with the load expands the application range of the vehicle suspension, and the first leaf spring 11 and the second leaf spring 12 of the leaf spring assembly 10 are made of fiber reinforced plastic, thereby improving The specific stiffness, specific strength and corrosion resistance of the vehicle suspension extend the service life of the vehicle suspension.
- the vehicle suspension device further includes a shock absorber bracket (not shown) having a U-bolt, at the same time, A positioning pin 130 is protruded from the connecting mechanism 13, and the positioning pin 130 is connected to the U-bolt. Specifically, the positioning pin 130 protrudes outward from the surfaces of the first connecting member 131 and the second connecting member 132, and the positioning of the positioning pin 130 and the U-bolt causes the leaf spring assembly 10 to be positioned with the damper bracket.
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- Mechanical Engineering (AREA)
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- Vehicle Body Suspensions (AREA)
Abstract
一种用于车辆悬挂装置的板式弹簧组件（10），包括第一板簧（11），设置于第一板簧底侧的第二板簧（12），以及用于连接第一板簧和第二板簧的连接机构（13），第二板簧的两端与第一板簧之间具有间隙，且第二板簧的长度小于第一板簧的长度；一种车辆悬挂装置，包括一对吊耳（18）和板式弹簧组件（10），第一板簧的两端分别与两个吊耳固定连接。该板式弹簧组件及车辆悬挂装置采用了第一板簧和第二板簧的组合，使得板式弹簧组件的刚度能够随着车辆载荷的变化而变化，从而解决了现有板式弹簧无法满足刚度随载荷的变化而变化的技术问题，同时，由于第一板簧和第二板簧采用纤维增强塑料制成，从而提高了车辆悬挂的比刚度、比强度和耐腐蚀性。
Description
板式弹簧组件及车辆悬挂装置
技术领域
[0001] 本发明涉及车辆悬挂装置的技术领域， 尤其涉及一种板式弹簧组件及车辆悬挂 装置。
背景技术
[0002] 复合材料特别是纤维增强塑料 （Fiber Reinforced Polymer/Plastic , 简称 FRP) ， 由于具有重量轻、 比刚度大、 比强度高、 寿命长、 耐腐蚀、 可设计性好等特点 ， 正在逐步取代传统工程材料， 如： 金属材料和木材等， 广泛地应用于航天、 航空、 航海、 建筑、 汽车、 体育及医疗器械等工业领域。 近年来， 将复合材料 用在车辆悬挂的板式弹簧上也越来越广泛。
[0003] 目前常见的用于车辆悬挂的复合材料板式弹簧， 大多采用单片簧结构， 结构虽 然简单， 但仅适用于等刚度的车辆悬挂， 而无法满足刚度随载荷的变化而变化 的渐变刚度悬挂。
技术问题
[0004] 本发明的目的在于提供一种板式弹簧组件及车辆悬挂装置， 以解决现有技术中 ， 板式弹簧无法满足刚度随载荷的变化而变化的技术问题。
问题的解决方案
技术解决方案
[0005] 为实现上述目的， 本发明采用的技术方案是： 提供了一种用于车辆悬挂装置的 板式弹簧组件， 包括第一板簧， 设置于所述第一板簧底侧的第二板簧， 以及用 于连接所述第一板簧和所述第二板簧的连接机构， 所述第二板簧的两端与所述 第一板簧之间具有间隙， 且所述第二板簧的长度小于所述第一板簧的长度。
[0006] 进一步地， 所述板式弹簧组件还包括夹设于所述第一板簧和所述第二板簧之间 的第一弹性垫， 且所述第一弹性垫穿设于所述连接机构中。
[0007] 进一步地， 所述连接机构包括设置于所述第一板簧顶侧的第一连接件， 设置于 所述第二板簧底侧的第二连接件， 以及第一紧固件， 所述第一连接件通过所述
第一紧固件与所述第二连接件固定连接。
[0008] 进一步地， 所述第二板簧的两端套设有第二弹性垫， 所述第一板簧的对应所述 第二弹性垫的位置上套设有第三弹性垫， 所述第三弹性垫可与所述第二弹性垫 抵接。
[0009] 进一步地， 所述第一弹性垫、 所述第二弹性垫及所述第三弹性垫为橡胶或热塑 性弹性体制成的弹性件。
[0010] 进一步地， 所述第一板簧和所述第二板簧为纤维增强塑料制成的板状弹簧。
[0011] 进一步地， 所述板式弹簧组件还包括固设于所述第二板簧上的导向机构， 所述 第一板簧伸入所述导向机构内并可沿所述导向机构朝正对所述第二板簧的方向 移动。
[0012] 进一步地， 所述导向机构包括连接于所述第二板簧的固定件， 以及设置于所述 第二板簧顶侧并与所述固定件固定连接的导向件， 所述导向件上设置有供所述 第一板簧穿设的导向支架。
[0013] 本发明提供的板式弹簧组件的有益效果在于： 与现有技术相比， 本发明提供的 板式弹簧组件， 采用了第一板簧和第二板簧的组合， 其中， 第二板簧的两端与 第一板簧之间具有间隙， 并且第二板簧的长度小于第一板簧的长度， 使得板式 弹簧组件的刚度能够随着车辆载荷的变化而变化， 从而有效地解决了现有板式 弹簧无法满足刚度随载荷的变化而变化的技术问题， 扩大了板式弹簧组件的适 用范围。
[0014] 本发明还提供了一种车辆悬挂装置， 包括一对吊耳， 以及上述板式弹簧组件， 所述第一板簧的两端分别与两个所述吊耳固定连接。
[0015] 进一步地， 所述车辆悬挂装置还包括具有 U型螺栓的减震器支架， 所述连接机 构上凸设有定位销， 所述定位销与所述 u型螺栓连接。
发明的有益效果
有益效果
[0016] 本发明提供的车辆悬挂装置的有益效果在于： 采用了板式弹簧组件， 使得车辆 悬挂的刚度能够随着车辆载荷的变化而变化， 从而有效地解决了现有车辆悬挂 无法满足刚度随载荷的变化而变化的技术问题， 扩大了车辆悬挂的适用范围，
同吋， 由于板式弹簧组件中第一板簧和第二板簧采用纤维增强塑料制成， 从而 提高了车辆悬挂的比刚度、 比强度和耐腐蚀性， 延长了车辆悬挂装置的使用寿 命。
对附图的简要说明
附图说明
[0017] 为了更清楚地说明本发明实施例中的技术方案， 下面将对实施例或现有技术描 述中所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅是 本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动性 的前提下， 还可以根据这些附图获得其他的附图。
[0018] 图 1为本发明实施例提出的板式弹簧组件的立体示意图；
[0019] 图 2为本发明实施例提出的板式弹簧组件中连接机构的剖面示意图；
[0020] 图 3为本发明实施例提出的板式弹簧组件中导向机构的剖面示意图。
[0021] 其中， 图中各附图标记：
[0022] 10—板式弹簧组件、 11一第一板簧、 12一第二板簧、 13—连接机构、 14一第一 弹性垫、 15—第二弹性垫、 16—第三弹性垫、 17—导向机构、 18—吊耳、 130- 定位销、 131_第一连接件、 132_第二连接件、 133_第一紧固件、 171_固定 件、 172一导向件、 173—第二紧固件、 1721—导向支架、 1722—第四弹性垫。
本发明的实施方式
[0023] 为了使本发明所要解决的技术问题、 技术方案及有益效果更加清楚明白， 以下 结合附图及实施例， 对本发明进行进一步详细说明。 应当理解， 此处所描述的 具体实施例仅仅用以解释本发明， 并不用于限定本发明。
[0024] 需要说明的是， 当元件被称为 "固定于"或"设置于"另一个元件， 它可以直接在 另一个元件上或者间接在该另一个元件上。 当一个元件被称为是 "连接于"另一个 元件， 它可以是直接连接到另一个元件或间接连接至该另一个元件上。
[0025] 需要理解的是， 术语"长度"、 "宽度"、 "上"、 "下"、 "前"、 "后"、 "左"、 "右"、 "竖直"、 "水平"、 "顶"、 "底 ""内"、 "外"等指示的方位或位置关系为基于附图所 示的方位或位置关系， 仅是为了便于描述本发明和简化描述， 而不是指示或暗
示所指的装置或元件必须具有特定的方位、 以特定的方位构造和操作， 因此不 能理解为对本发明的限制。
[0026] 此外， 术语"第一"、 "第二 "仅用于描述目的， 而不能理解为指示或暗示相对重 要性或者隐含指明所指示的技术特征的数量。 由此， 限定有 "第一"、 "第二 "的特 征可以明示或者隐含地包括一个或者更多个该特征。 在本发明的描述中， "多个" 的含义是两个或两个以上， 除非另有明确具体的限定。
[0027] 请参阅图 1， 现对本发明提供的板式弹簧组件进行说明。 该板式弹簧组件 10， 包括第一板簧 11、 第二板簧 12和连接机构 13， 其中， 第二板簧 12设置在第一板 簧 11的底侧； 连接机构 13用于连接第一板簧 11和第二板簧 12; 具体地， 第二板 簧 12的两端与第一板簧 11之间具有间隙， 并且第二板簧 12的长度小于第一板簧 1 1的长度。 如此， 保证第一板簧 11先起支承作用且第二板簧 12后起支承作用。 优 选地， 第一板簧 11呈圆弧形， 第二板簧 12呈直线形， 当然， 根据实际情况和需 求， 在本发明的其他实施例中， 第二板簧 12还可呈圆弧形， 此处不作唯一限定 。 使用吋， 在车辆初始或较小载荷的状态下， 第一板簧 11先起支承作用， 此吋 ， 板式弹簧组件 10的刚度等于第一板簧 11的刚度， 接着第一板簧 11随着载荷的 增加逐渐地朝第二板簧 12向下移动， 当车辆载荷达到一定数值后， 第一板簧 11 与第二板簧 12抵接， 此吋， 第一板簧 11和第二板簧 12同吋起支承作用， 板式弹 簧组件 10的刚度等于第一板簧 11的刚度和第二板簧 12的刚度之和。
[0028] 本发明提供的板式弹簧组件 10， 与现有技术相比， 采用了第一板簧 11和第二板 簧 12的组合， 其中， 第二板簧 12的两端与第一板簧 11之间具有间隙， 并且第二 板簧 12的长度小于第一板簧 11的长度， 使得板式弹簧组件 10的刚度能够随着车 辆载荷的变化而变化， 从而有效地解决了现有板式弹簧无法满足刚度随载荷的 变化而变化的技术问题， 扩大了板式弹簧组件的适用范围。
[0029] 优选地， 第一板簧 11和第二板簧 12由纤维增强塑料制成， 该纤维增强塑料包括 基体材料和增强纤维材料， 其中， 基体材料为热固性树脂， 如： 聚酯、 乙烯基 树脂、 环氧树脂、 聚酰亚胺、 聚氨酯等， 或热塑性树脂， 如： 聚氨酯、 聚酰胺 、 聚对苯二甲酸类等； 增强纤维材料为玻璃纤维、 碳纤维、 有机纤维中的任意 一种或几种缠绕制成。
[0030] 进一步地， 请参阅图 1和图 2， 作为本发明提供的板式弹簧组件的一种具体实施 方式， 板式弹簧组件 10还包括第一弹性垫 14， 该第一弹性垫 14夹设在第一板簧 1 1和第二板簧 12之间， 并且第一弹性垫 14穿设在连接机构 13中。 具体地， 由于在 初始状态下， 第一板簧 11与第二板簧 12的外形弧度不同， 导致第一板簧 11与第 二板簧 12之间只有一个接触位置， 第一弹性垫 14就设置在该接触位置， 此处， 第一弹性垫 14优选由橡胶或热塑性弹性体制成， 此处， 热塑性弹性体 （Thermopl astic rubber) 简称 TPE或 TPR， 是常温下具有橡胶的弹性， 高温下具有可塑化成 型的一类弹性体； 第一弹性垫 14可通过注塑或胶粘的方式固定在第一板簧 11的 表面或第二板簧 12的表面， 具有耐磨、 缓冲的作用， 在第一板簧 11与第二板簧 1 2的接触处设置第一弹性垫 14， 避免了第一板簧 11与第二板簧 12直接接触导致第 一板簧 11和第二板簧 12的主体磨损破坏。 当然， 根据实际情况和需求， 在本发 明的其他实施例中， 第一弹性垫 14还可为其他材料制成的弹性件， 也可通过其 他方式固定在第一板簧 11与第二板簧 12的接触处， 此处不作唯一限定。
[0031] 进一步地， 请参阅图 2， 作为本发明提供的板式弹簧组件的一种具体实施方式 ， 连接机构 13包括第一连接件 131、 第二连接件 132和第一紧固件 133， 其中， 第 一连接件 131设置在第一板簧 11的顶侧； 第二连接件 132设置在第二板簧 12的底 侧； 并且第一连接件 131通过第一紧固件 133与第二连接件 132固定连接。 即连接 机构 13通过第一紧固件 133将第一板簧 11和第二板簧 12夹固在第一连接件 131和 第二连接件 132之间。 此处， 第一紧固件 133可为螺栓和螺母的组合件， 或为卡 扣和卡槽的组合件 （未图示） ， 当然， 根据实际情况和需求， 在本发明的其他 实施例中， 第一紧固件 133还可为其他能够实现第一连接件 131与第二连接件 132 固定连接的构件， 此处不作唯一限定。
[0032] 进一步地， 请参阅图 1， 作为本发明提供的板式弹簧组件的一种具体实施方式 ， 第二板簧 12的两端套设有第二弹性垫 15， 同吋， 第一板簧 11的对应第二弹性 垫 15的位置上套设有第三弹性垫 16， 该第三弹性垫 16可与第二弹性垫 15抵接。 优选地， 第二弹性垫 15和第三弹性垫 16由橡胶或热塑性弹性体制成， 并且可通 过注塑或胶粘的方式固定在第一板簧 11的外周或第二板簧 12的外周， 具有耐磨 、 缓冲的作用。 当车辆载荷达到一定数值后， 第一板簧 11与第二板簧 12抵接，
第二弹性垫 15和第三弹性垫 16套设在第一板簧 11与第二板簧 12的抵接处， 即第 二弹性垫 15和第三弹性垫 16垫设在第一板簧 11与第二板簧 12之间， 此吋， 第二 弹性垫 15与第三弹性垫 16抵接， 如此， 避免了第一板簧 11与第二板簧 12直接接 触导致第一板簧 11和第二板簧 12的主体磨损破坏。 当然， 根据实际情况和需求 ， 在本发明的其他实施例中， 第二弹性垫 15和第三弹性垫 16还可为其他材料制 成的弹性件， 也可通过其他方式固定在第一板簧 11与第二板簧 12的外周， 此处 不作唯一限定。
[0033] 进一步地， 请参阅图 1和图 3， 作为本发明提供的板式弹簧组件的一种具体实施 方式， 板式弹簧组件 10还包括导向机构 17， 该导向机构 17固定设置在第二板簧 1 2上， 同吋， 第一板簧 11伸入导向机构 17内， 并且第一板簧 11可沿导向机构 17朝 正对第二板簧 12的方向移动。 具体地， 导向机构 17的数量为一个， 固定设置在 靠近第二板簧 12的一端， 第一板簧 11伸入导向机构 17内并且可在导向机构 17内 上下移动， 当然， 根据实际情况和需求， 在本发明的其他实施例中， 导向机构 1 7还可为两个， 分别设置在靠近第二板簧 12的两端， 此处不作唯一限定。
[0034] 进一步地， 请参阅图 1和图 3， 作为本发明提供的板式弹簧组件的一种具体实施 方式， 导向机构 17包括固定件 171和导向件 172， 其中， 固定件 171与第二板簧 12 连接， 导向件 172设置在第二板簧 12的顶侧， 并且与固定件 171固定连接， 同吋 ， 在导向件 172上设置有导向支架 1721， 第一板簧 11穿设在导向支架 1721内。 具 体地， 固定件 171可通过胶粘方式与第二板簧 12固定连接， 或通过第二紧固件 17 3与导向件 172固定连接卡固在第二板簧 12上， 当然， 根据实际情况和需求， 在 本发明的其他实施例中， 固定件 171还可套设在第二板簧 12的外周， 此处不作唯 一限定； 导向支架 1721可为 U形框架， 或矩形框架， 围设在第一板簧 11的外周， 当第一板簧 11受外力作用吋， 在导向支架 1721内上下移动， 如此， 防止了第一 板簧 11在移动或形变的过程中与第二板簧 12发生偏移， 导致第一板簧 11断裂或 破坏。 此处， 第二紧固件 173可为螺栓和螺母的组合件， 或为卡扣和卡槽的组合 件 （未图示） ， 当然， 根据实际情况和需求， 在本发明的其他实施例中， 第二 紧固件 173还可为其他能够实现固定件 171与导向件 172固定连接的构件， 此处不 作唯一限定。
[0035] 优选地， 在上述导向支架 1721朝向第一板簧 11的内壁面上设置有第四弹性垫 17 22， 该第四弹性垫 1722由橡胶或热塑性弹性体制成， 可通过注塑或胶粘的方式 固定在导向支架 1721朝向第一板簧 11的内壁面上， 具有耐磨、 缓冲的作用， 如 此， 避免了第一板簧 11与导向支架 1721直接接触导致第一板簧 11的主体磨损破 坏。
[0036] 请参阅图 1， 本发明提供的一种车辆悬挂装置， 包括一对吊耳 18和板式弹簧组 件 10， 其中， 板式弹簧组件 10的第一板簧 11的两端分别与两个吊耳 18固定连接
[0037] 本发明提供的车辆悬挂装置， 与现有技术相比， 采用了板式弹簧组件 10， 使得 车辆悬挂的刚度能够随着车辆载荷的变化而变化， 从而有效地解决了现有车辆 悬挂无法满足刚度随载荷的变化而变化的技术问题， 扩大了车辆悬挂的适用范 围， 同吋， 由于板式弹簧组件 10中第一板簧 11和第二板簧 12采用纤维增强塑料 制成， 从而提高了车辆悬挂的比刚度、 比强度和耐腐蚀性， 延长了车辆悬挂装 置的使用寿命。
[0038] 进一步地， 请参阅图 1， 作为本发明提供的板式弹簧组件的一种具体实施方式 ， 车辆悬挂装置还包括具有 U型螺栓的减震器支架 （未图示） ， 同吋， 在连接机 构 13上凸设有定位销 130， 该定位销 130与 U型螺栓连接。 具体地， 定位销 130自 第一连接件 131和第二连接件 132的表面向外突出， 通过定位销 130与 U型螺栓的 装配连接， 使得板式弹簧组件 10与减震器支架形成定位。
[0039] 以上所述仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发明的 精神和原则之内所作的任何修改、 等同替换和改进等， 均应包含在本发明的保 护范围之内。
Claims
权利要求书
板式弹簧组件， 用于车辆悬挂装置， 其特征在于， 所述板式弹簧组件 包括第一板簧， 设置于所述第一板簧底侧的第二板簧， 以及用于连接 所述第一板簧和所述第二板簧的连接机构， 所述第二板簧的两端与所 述第一板簧之间具有间隙， 且所述第二板簧的长度小于所述第一板簧 的长度。
如权利要求 1所述的板式弹簧组件， 其特征在于， 所述板式弹簧组件 还包括夹设于所述第一板簧和所述第二板簧之间的第一弹性垫， 且所 述第一弹性垫穿设于所述连接机构中。
如权利要求 2所述的板式弹簧组件， 其特征在于， 所述连接机构包括 设置于所述第一板簧顶侧的第一连接件， 设置于所述第二板簧底侧的 第二连接件， 以及第一紧固件， 所述第一连接件通过所述第一紧固件 与所述第二连接件固定连接。
如权利要求 2所述的板式弹簧组件， 其特征在于， 所述第二板簧的两 端套设有第二弹性垫， 所述第一板簧的对应所述第二弹性垫的位置上 套设有第三弹性垫， 所述第三弹性垫可与所述第二弹性垫抵接。 如权利要求 4所述的板式弹簧组件， 其特征在于， 所述第一弹性垫、 所述第二弹性垫及所述第三弹性垫为橡胶或热塑性弹性体制成的弹性 件。
如权利要求 1至 5任一项所述的板式弹簧组件， 其特征在于， 所述第一 板簧和所述第二板簧为纤维增强塑料制成的板状弹簧。
如权利要求 1至 5任一项所述的板式弹簧组件， 其特征在于， 所述板式 弹簧组件还包括固设于所述第二板簧上的导向机构， 所述第一板簧伸 入所述导向机构内并可沿所述导向机构朝正对所述第二板簧的方向移 动。
如权利要求 7所述的板式弹簧组件， 其特征在于， 所述导向机构包括 连接于所述第二板簧的固定件， 以及设置于所述第二板簧顶侧并与所 述固定件固定连接的导向件， 所述导向件上设置有供所述第一板簧穿
设的导向支架。
[权利要求 9] 车辆悬挂装置， 其特征在于， 包括一对吊耳， 以及权利要求 1至 8任一 项所述的板式弹簧组件， 所述第一板簧的两端分别与两个所述吊耳固 定连接。
[权利要求 10] 如权利要求 9所述的车辆悬挂装置， 其特征在于， 所述车辆悬挂装置 还包括具有 U型螺栓的减震器支架， 所述连接机构上凸设有定位销， 所述定位销与所述 U型螺栓连接。
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