CN215487365U

CN215487365U - Longitudinally-arranged plate spring for light truck rear auxiliary spring

Info

Publication number: CN215487365U
Application number: CN202120337635.6U
Authority: CN
Inventors: 刘雪品; 刘旻
Original assignee: Jiangsu Compositech Co ltd
Current assignee: Jiangsu Compositech Co ltd
Priority date: 2021-02-06
Filing date: 2021-02-06
Publication date: 2022-01-11
Anticipated expiration: 2031-02-06

Abstract

The utility model relates to a longitudinally-arranged plate spring for an auxiliary spring after light truck, which comprises a plate spring body, an auxiliary spring convex buckle plate and an auxiliary spring concave buckle plate, wherein the auxiliary spring convex buckle plate is matched with the auxiliary spring concave buckle plate and is arranged at the middle position of the plate spring body; the plate spring body is of a bow-shaped structure and is made of composite materials. The utility model adopts composite materials, thus overcoming the defects of short service life, heavy weight, low safety, poor comfort and the like of the common steel plate spring; by adopting the ingenious structural design and the composite plate spring produced by the advanced manufacturing process, on the premise of meeting the requirements of the prior art, the production and manufacturing cost of the vehicle is reduced, the use and maintenance cost is reduced, the weight of the suspension system is reduced, a certain energy-saving effect is achieved, and the safety and the stability of the vehicle suspension system are greatly improved.

Description

Longitudinally-arranged plate spring for light truck rear auxiliary spring

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a longitudinally-arranged plate spring for a light truck rear auxiliary spring.

Background

At present, the shock absorption structural forms of the automobile suspension are basically divided into a spiral spring, a common spring and an air spring. Wherein, the spiral spring is mainly applied to small vehicles such as cars and the like; the common steel plate spring is mainly applied to vehicles such as trucks, medium and light buses, engineering mechanical equipment and the like; the air spring is mainly applied to large buses and some urban buses. Compared with two structures of a common steel plate spring and an air spring, the air spring suspension has certain advantages, namely, the air spring suspension can be used instead for the current vehicle using the common steel plate spring suspension if the cost is not counted; however, the vehicle using the air spring suspension is difficult to replace by using the common steel plate spring, and the common steel plate spring has a large requirement on the structural space of the chassis of the vehicle, so that the vehicle is not suitable for all vehicles.

The common steel plate spring is used as an elastic element and is commonly used in corresponding mechanical and vehicle suspensions. The leaf spring structure is formed by superposing and combining a plurality of leaf springs made of alloy materials with the same width and different lengths. Generally, when a leaf spring is installed on an automobile suspension, the leaf spring is longitudinally assembled on a corresponding axle in a direction parallel to the front and the back of the automobile. The middle part of the plate spring is fixedly connected with the axle, and the two ends of the plate spring are connected with the vehicle chassis. The leaf spring can bear a load in a normal vertical direction when working, the larger the load is, the larger the leaf spring is deformed, and the smaller the load is, the smaller the leaf spring is deformed. The conventional leaf spring has some disadvantages: for example, 1) the use environment is limited. 2) Comfort and bearing capacity cannot be taken into account. 3) The service life is short. 4) The security is low.

The air suspension system has the advantages that for vehicles with small chassis space (such as urban buses with low chassis) and high requirement on comfort, the air suspension system with extremely high price and complex system structure can be selected. It is composed of control computer, air suction hole, air exhaust hole, air bag damper and air distributor. Controlling the horizontal posture of the vehicle body: a stabilizing system for adjusting the body of the vehicle. The air spring is used for damping the vibration of the elastic element, and the most obvious characteristic of the air spring is the air spring of an air bag type. The working principle of the air suspension is that compressed air is formed by an air compressor and sent to a rubber air bag, and the rubber air bag elastically deforms and deforms through air compression, so that the effect similar to that of an automobile tire is achieved to achieve the buffering effect. In foreign countries, the utilization rate of the air suspension system on heavy trucks exceeds 80%, the air suspension system is adopted 100% on high-speed passenger cars and luxury city passenger cars, and part of the cars are also provided with the air suspension system. Air suspensions also have some disadvantages, such as 1) high price. 2) The requirement on the bearing weight is strict. 3) The matched parts are various in types, comprise sensors, valves, pipelines, computer data lines, air bags and the like, are complex in fault maintenance process and high in maintenance cost. 4) The service life is short. 5) The potential safety hazard is great.

Therefore, the longitudinally-arranged plate spring for the light truck rear auxiliary spring is provided, so that the problems in the prior art are solved, and the plate spring has important significance for popularization and application.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present application is to provide a longitudinally-arranged leaf spring for a light truck rear auxiliary spring, which forms a group of longitudinally-arranged combined leaf spring suspension structures in a longitudinally-arranged manner, and distributes a load of a vehicle on a single-leaf or multi-leaf small-sized leaf spring, so that a leaf spring assembly can meet a requirement of a bearing capacity of the whole vehicle, and the comfort level of the vehicle is improved, and meanwhile, a chassis space occupied by a leaf spring suspension system is effectively reduced, so as to be equal to an installation space of an air spring suspension, and achieve a use effect.

In order to achieve the above object, the present application provides the following technical solutions.

A longitudinally-arranged plate spring for a light truck rear auxiliary spring comprises a plate spring body, an auxiliary spring convex buckle plate and an auxiliary spring concave buckle plate;

the auxiliary spring convex buckle plate is matched with the auxiliary spring concave buckle plate and is arranged in the middle of the plate spring body, and the auxiliary spring convex buckle plate, the plate spring body and the auxiliary spring concave buckle plate are fixedly connected in sequence through positioning pins;

the plate spring body is of a bow-shaped structure and is made of composite materials.

Preferably, the auxiliary spring buckle plate is provided with an upper base plate on one side far away from the plate spring body, and the auxiliary spring buckle plate is provided with a lower base plate on one side far away from the plate spring body.

Preferably, buckle plate protective pads are respectively arranged between the auxiliary spring convex buckle plate and the upper cushion plate and between the auxiliary spring concave buckle plate and the lower cushion plate.

Preferably, the buckle plate protection pad adopts a multi-layer line rubber plate.

Preferably, the two ends of the plate spring body are respectively provided with a wear-resisting plate, and the wear-resisting plates are fixedly connected with the plate spring body through bolts and nuts.

Preferably, the bolt is a countersunk head hexagon socket head cap screw, the nut is a hexagon flange nut, and the nut is located on the plate spring body far away from one side of the wear-resisting plate.

Preferably, the widths of the two ends and the middle position of the plate spring body are smaller than those of other positions, and the plate spring body is of a central line symmetrical structure.

The beneficial technical effects obtained by the utility model are as follows:

1) the utility model adopts the ingenious structural design and the composite material plate spring produced by the advanced manufacturing process to perfectly solve the defects of the common flat plate spring and the air spring, thereby leading the user who does not use the air bag suspension system to realize the product upgrade with lower cost due to the cost and achieving the effect of using the air bag suspension; the use cost of a user who uses the air bag suspension system is greatly reduced on the premise of ensuring the original use effect;

2) on the premise of meeting the requirements of the prior art, the utility model reduces the production and manufacturing cost of the vehicle, reduces the use and maintenance cost, reduces the weight of the suspension system and achieves the effect of saving energy to a certain extent; the safety and the stability of the vehicle suspension system are greatly improved;

3) the plate spring body is made of composite materials, so that the defects of short service life, heavy weight, low safety, poor comfort and the like of a common plate spring are overcome;

4) the utility model makes up a group of longitudinal combined plate spring suspension structure by longitudinally arranging the original long and large-occupied plate spring, one or more small plate springs and arranging the upper and lower metal clamping components in a longitudinal mode.

The foregoing description is only an overview of the technical solutions of the present application, so that the technical means of the present application can be more clearly understood and the present application can be implemented according to the content of the description, and in order to make the above and other objects, features and advantages of the present application more clearly understood, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of a longitudinally disposed leaf spring for a light truck rear auxiliary spring in one embodiment of the present disclosure;

fig. 2 is a top view of a longitudinally disposed leaf spring for a light truck rear secondary spring in one embodiment of the present disclosure.

In the above drawings: 100. a plate spring body; 210. the auxiliary spring buckle plate; 220. the auxiliary spring concave buckle plate; 230. positioning pins; 240. an upper base plate; 250. a lower base plate; 260. a pinch plate protection pad; 310. a wear plate; 320. a nut; 330. a bolt; 340. wear-resisting board bottom plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "the embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "one embodiment" or "the present embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Further, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.

The term "at least one" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, at least one of a and B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.

Example 1

As shown in fig. 1 and 2, the longitudinally-arranged plate spring for the auxiliary spring after the light truck comprises a plate spring body 100, an auxiliary spring buckle plate 210 and an auxiliary spring buckle plate 220, wherein the auxiliary spring buckle plate 210 is matched with the auxiliary spring buckle plate 220 and is arranged in the middle of the plate spring body 100, and the auxiliary spring buckle plate 210, the plate spring body 100 and the auxiliary spring buckle plate 220 are fixedly connected with one another in sequence through a positioning pin 230.

Further, the plate spring body 100 is of a bow-shaped structure, and the plate spring body 100 is made of a composite material, so that the defects of short service life, heavy weight, low safety, poor comfort and the like of a common plate spring are overcome.

Furthermore, a protrusion is arranged below the auxiliary spring buckle plate 210, and a groove corresponding to the protrusion is arranged above the auxiliary spring buckle plate 220, so that the auxiliary spring buckle plate 210 and the auxiliary spring buckle plate 220 are matched.

The auxiliary spring buckle 210 is provided with an upper pad 240 on one side far away from the plate spring body 100, and the auxiliary spring buckle 220 is provided with a lower pad 250 on one side far away from the plate spring body 100, which is beneficial to prolonging the service life of the longitudinally-arranged plate spring.

Furthermore, buckle plate protection pads 260 are respectively arranged between the auxiliary spring buckle plate 210 and the upper cushion plate 240 and between the auxiliary spring buckle plate 220 and the lower cushion plate 250.

Furthermore, the buckle plate protective pad 260 adopts a multi-layer line rubber plate, so that the service life is further prolonged.

The two ends of the leaf spring body 100 are respectively provided with a wear plate 310, and the wear plates 310 are fixedly connected with the leaf spring body 100 through bolts 330 and nuts 320.

Further, each of the wear plates 310 is fixed by 2 sets of bolts 330 and nuts 320, and 2 sets of bolts 330 and nuts 320 are arranged side by side, so as to improve the firmness of the connection with the plate spring body 100.

Alternatively, each of the wear plates 310 is fixed by 4 sets of bolts 330 and nuts 320, and the 4 sets of bolts 330 and nuts 320 are evenly distributed, thereby further improving the firmness of the connection with the plate spring body 100.

Further, the bolt 330 is a countersunk hexagon socket head cap bolt, the nut 320 is a hexagon flange nut, and the nut 320 is located on the plate spring body 100 on the side away from the wear plate 310.

Further, wear-resistant plate bottom plates 340 are respectively arranged at two ends of the plate spring body 100, the wear-resistant plate bottom plates 340 correspond to the wear-resistant plates 310 and are respectively arranged at two sides of the plate spring body 100, and the wear-resistant plate bottom plates 340 are fixedly connected with the plate spring body 100 through bolts 330 and nuts 320.

The widths of the two ends and the middle position of the plate spring body 100 are smaller than those of other positions, and the plate spring body 100 is of a central line symmetrical structure, so that the elastic deformation force of the plate spring body 100 is improved.

The two sides of the plate spring body 100 from the end portion to the middle position are arc-shaped structures, which is beneficial to improving the elastic deformation force of the plate spring body 100.

It should be noted that the longitudinal leaf spring for the light truck rear auxiliary spring may be composed of one leaf spring body, two leaf spring bodies, three leaf spring bodies, or an infinite number of leaf spring bodies.

It should be noted that the composite material in the present application is a material of the prior art, and the composite material is common knowledge to those skilled in the art.

The longitudinally-arranged plate spring for the light truck rear auxiliary spring adopts an ingenious structural design and a composite material plate spring produced by an advanced manufacturing process, so that the defects of a common horizontally-arranged plate spring and an air spring are perfectly overcome, and a user who does not use an air bag suspension system due to cost realizes product upgrading at lower cost, thereby achieving the effect of using an air bag suspension; the use cost of a user who uses the air bag suspension system is greatly reduced on the premise of ensuring the original use effect; on the premise of meeting the requirements of the prior art, the production and manufacturing cost of the vehicle is reduced, the use and maintenance cost is reduced, the weight of a suspension system is reduced, and a certain energy-saving effect is achieved; the safety and the stability of the vehicle suspension system are greatly improved.

The longitudinally-arranged plate spring for the light truck rear auxiliary spring has the advantages that the occupied space is large, the long longitudinally-arranged plate spring is large, a single plate spring or a plurality of small plate springs is used, the longitudinally-arranged plate spring is provided with the upper metal clamping assembly and the lower metal clamping assembly, and a group of longitudinally-combined plate spring suspension structure is formed.

The above description is only a preferred embodiment of the present invention, and it is not intended to limit the scope of the present invention, and various modifications and changes may be made by those skilled in the art. Variations, modifications, substitutions, integrations and parameter changes of the embodiments may be made without departing from the principle and spirit of the utility model, which may be within the spirit and principle of the utility model, by conventional substitution or may realize the same function.

Claims

1. A longitudinally-arranged plate spring for an auxiliary spring after light truck is characterized by comprising a plate spring body (100), an auxiliary spring convex buckle plate (210) and an auxiliary spring concave buckle plate (220);

the auxiliary spring convex buckle plate (210) is matched with the auxiliary spring concave buckle plate (220) and arranged in the middle of the plate spring body (100), and the auxiliary spring convex buckle plate (210), the plate spring body (100) and the auxiliary spring concave buckle plate (220) are fixedly connected in sequence through a positioning pin (230);

the plate spring body (100) is of a bow-shaped structure, and the plate spring body (100) is made of a composite material;

the two ends of the plate spring body (100) are respectively provided with a wear-resisting plate (310), and the wear-resisting plates (310) are fixedly connected with the plate spring body (100) through bolts (330) and nuts (320);

each wear-resisting plate (310) is fixed through 4 groups of bolts (330) and nuts (320), and the 4 groups of bolts (330) and nuts (320) are uniformly distributed;

wear-resistant plate bottom plates (340) are respectively arranged at two ends of the plate spring body (100), and the wear-resistant plate bottom plates (340) correspond to the wear-resistant plates (310) and are respectively arranged at two sides of the plate spring body (100);

the width of the two ends and the middle position of the plate spring body (100) is smaller than the width of other positions, and the plate spring body (100) is of a central line symmetrical structure.

2. Longitudinal leaf spring for light truck rear auxiliary spring according to claim 1, characterized in that the auxiliary spring cam (210) is provided with an upper pad (240) on the side away from the leaf spring body (100) and the auxiliary spring cam (220) is provided with a lower pad (250) on the side away from the leaf spring body (100).

3. The longitudinally-arranged plate spring for the auxiliary spring after the light truck as claimed in claim 2, wherein buckle plate protection pads (260) are respectively arranged between the convex buckle plate (210) of the auxiliary spring and the upper cushion plate (240) and between the concave buckle plate (220) of the auxiliary spring and the lower cushion plate (250).

4. The longitudinally arranged plate spring for the light truck rear auxiliary spring according to claim 3, wherein the pinch plate protection pad (260) is a multi-layer wire rubber plate.

5. The longitudinally arranged plate spring for the light truck rear auxiliary spring according to claim 1, wherein the bolt (330) is a countersunk hexagon socket head cap bolt, the nut (320) is a hexagon flange nut, and the nut (320) is arranged on the plate spring body (100) at the side far away from the wear plate (310).