CN114056019A - Leaf spring device and installation method thereof - Google Patents
Leaf spring device and installation method thereof Download PDFInfo
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- CN114056019A CN114056019A CN202011112959.6A CN202011112959A CN114056019A CN 114056019 A CN114056019 A CN 114056019A CN 202011112959 A CN202011112959 A CN 202011112959A CN 114056019 A CN114056019 A CN 114056019A
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- leaf spring
- spring
- auxiliary
- leaf
- spring device
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- 238000000034 method Methods 0.000 title claims description 23
- 238000009434 installation Methods 0.000 title claims description 7
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000013013 elastic material Substances 0.000 claims description 15
- 239000007769 metal material Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 239000000088 plastic resin Substances 0.000 description 2
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Classifications
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- 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
- B60G11/113—Mountings on the axle
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- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
- F16F1/368—Leaf springs
- F16F1/3683—Attachments or mountings therefor
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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
- B60G2202/112—Leaf spring longitudinally arranged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/121—Mounting of leaf springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/42—Springs
- B60G2206/428—Leaf springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/70—Materials used in suspensions
- B60G2206/71—Light weight materials
- B60G2206/7101—Fiber-reinforced plastics [FRP]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2238/00—Type of springs or dampers
- F16F2238/02—Springs
- F16F2238/022—Springs leaf-like, e.g. of thin, planar-like metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
- Springs (AREA)
Abstract
本发明公开一种板簧装置。所述板簧装置可以包括：单片板簧，由包括两种以上不同材料的复合材料制成，并且至少一个安装孔在宽度方向上贯通；以及至少一个辅助弹簧，可拆卸地安装在所述至少一个安装孔中。所述至少一个辅助弹簧的刚性可以不同于所述板簧的刚性。所述板簧装置的刚性可以通过安装在板簧上的辅助弹簧的刚性来调整。
The invention discloses a plate spring device. The leaf spring device may include: a single leaf leaf spring made of a composite material including two or more different materials, and at least one mounting hole penetrating in the width direction; and at least one auxiliary spring detachably mounted on the in at least one mounting hole. The stiffness of the at least one auxiliary spring may be different from the stiffness of the leaf spring. The rigidity of the leaf spring device can be adjusted by the rigidity of the auxiliary spring mounted on the leaf spring.
Description
Technical Field
The present invention relates to a leaf spring device and a method of mounting the same, and more particularly, to a leaf spring device and a method of mounting the same, in which the posture of a vehicle can be easily adjusted due to simple rigidity adjustment.
Background
A suspension of a vehicle is a device that prevents vibration or impact from a road surface during traveling from being directly transmitted to a vehicle body by connecting an axle and the vehicle body, thereby preventing damage to the vehicle body or an on-vehicle object and improving ride comfort.
A leaf spring (leaf spring) is one of suspensions, is mainly applied to a rear suspension of a large commercial vehicle or a bus, and is an important component influencing riding comfort and driving stability.
A common plate spring is mainly a multi-plate spring formed by stacking a plurality of metal plates (steel plates made of steel materials) of different lengths. The plurality of leaf springs have a disadvantage of heavy weight, and particularly, when damaged due to a reduction in durability, the damage occurs in a single piece, so that it is necessary to integrally disassemble and reassemble the plurality of leaf springs in order to replace the damaged steel plate. Due to this series of operation processes, operability is reduced and much time is required.
In recent years, a single leaf spring made of a composite material has been increasingly used for the purpose of achieving weight reduction while having the same strength as a plurality of leaf springs. The composite material is generally a combination of plastic resin and glass fiber, and the strength and elastic modulus of the composite material can be adjusted according to the content of the glass fiber.
The rigidity of the conventional multi-piece leaf spring can be adjusted by the number of metal plates and the rigidity and length of each metal plate, etc. Therefore, the plurality of metal plates can be variously combined in accordance with the actual specification of the vehicle (for example, load deviation in the vehicle width direction). That is, a plurality of leaf springs can be easily manufactured and managed according to various specifications.
Single-piece leaf springs of composite materials are typically made using a mold. The rigidity of the single-piece leaf spring of the composite material can be adjusted by the strength and the elastic modulus of the composite material, the shape of the leaf spring, and the like. Since there is a limitation in adjusting the rigidity of the plate spring by the strength and the elastic modulus of the composite material, the rigidity of the single plate spring of the composite material is mainly adjusted by the shape change of the plate spring. Therefore, it is necessary to manufacture various molds for manufacturing leaf springs of various specifications, and it is not easy to manufacture a single leaf spring having various rigidities in accordance with the actual specifications of a vehicle.
The statements in this background section are intended to enhance an understanding of the background of the invention and may include other statements within the scope of the prior art that may be made by those skilled in the art.
Disclosure of Invention
Technical problem to be solved
Embodiments of the present invention are directed to provide a leaf spring device and a mounting method thereof capable of easily adjusting the posture of a vehicle due to simple rigidity adjustment.
(II) technical scheme
The leaf spring device according to an embodiment of the present invention may include: a single plate spring made of a composite material including two or more different materials, and at least one mounting hole penetrating in a width direction; and at least one auxiliary spring detachably mounted in the at least one mounting hole. The stiffness of the at least one auxiliary spring may be different from the stiffness of the leaf spring.
Two or more auxiliary springs may be installed in one installation hole, and the two or more auxiliary springs may be coupled to each other by a fixing member. Wherein the fixing member may include a bolt and a nut coupled to each other.
The two or more auxiliary springs may include: a first auxiliary spring inserted into the mounting hole from one side in a width direction of the plate spring; and a second auxiliary spring inserted into the mounting hole from the other side in the width direction of the plate spring. The step may protrude radially outward on each of an outer circumferential surface of one side in a width direction of the first auxiliary spring and an outer circumferential surface of the other side in the width direction of the second auxiliary spring.
In one aspect, the secondary spring may be made of one of an elastic material and a non-elastic material.
In another aspect, the auxiliary spring may be made of an elastic material, and an insert may be installed inside the auxiliary spring. The insert may be made of a metallic material.
In one aspect, an even number of mounting holes may be formed in the plate spring, and the even number of mounting holes may be formed symmetrically with respect to a load center in a length direction of the plate spring.
A mounting method of a leaf spring device according to another embodiment of the present invention may include the steps of: preparing a plate spring including a single-piece plate spring and an auxiliary spring detachably mounted on the plate spring; mounting the plate spring devices on both side portions of the axle; judging whether a vehicle height difference in the width direction occurs or not; determining the rigidity of the auxiliary spring according to the height difference of the vehicle in the width direction; and mounting an auxiliary spring having a certain rigidity on the plate spring.
The method may further comprise the steps of: mounting a plate spring device mounted with an auxiliary spring having a certain rigidity on an axle; and judging again whether or not a vehicle height difference in the width direction occurs.
The rigidity of the leaf spring device can be adjusted by the rigidity of an auxiliary spring mounted on the leaf spring.
In one aspect, the secondary spring may be made of one of an elastic material and a non-elastic material.
In another aspect, the auxiliary spring may be made of an elastic material, and an insert made of a metal material may be installed inside the auxiliary spring.
(III) advantageous effects
According to the embodiments of the present invention, the rigidity of the composite plate spring device can be easily adjusted, and the posture of the vehicle to which the composite plate spring device is to be applied can be easily adjusted. Therefore, ride comfort and driving stability can be improved.
In addition, only one mold is required to manufacture the plate spring of one shape, so that development cost and cost can be saved.
In addition, in the detailed description of the embodiments of the present invention, effects that can be obtained or predicted by the embodiments of the present invention will be directly or implicitly disclosed. That is, various effects predicted according to the embodiments of the present invention will be disclosed in the detailed description to be described later.
Drawings
The embodiments described herein may be better understood with reference to the following description taken in conjunction with the accompanying drawings, in which like reference numerals identify identical or functionally similar elements.
Fig. 1 schematically shows a leaf spring arrangement according to an embodiment of the invention mounted on an axle.
Fig. 2 is a perspective view of a leaf spring arrangement according to an embodiment of the invention.
Fig. 3 is a front view of a leaf spring arrangement according to an embodiment of the invention.
Fig. 4 is an exploded view of a leaf spring arrangement according to an embodiment of the invention.
Fig. 5 is a perspective view of an auxiliary spring according to an embodiment of the present invention.
Fig. 6 is a front view of an auxiliary spring according to an embodiment of the present invention.
Fig. 7 is a schematic view showing a system for performing a mounting method of the leaf spring device according to the embodiment of the present invention.
Fig. 8 is a flowchart illustrating a mounting method of the leaf spring device according to an embodiment of the present invention.
Fig. 9 schematically shows a case where a vehicle height difference occurs in the width direction of the vehicle.
Fig. 10 schematically shows a case where the plate spring device according to the embodiment of the present invention is applied to solve a vehicle height difference occurring in the width direction of the vehicle.
The drawings referred to above are not necessarily to scale, presenting a somewhat simplified representation of various preferred features illustrative of the basic principles of the invention. For example, specific design features of the disclosure, including specific dimensions, orientations, locations, and shapes, will be set forth in part in the specific intended application and use environment.
Detailed Description
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" include plural forms unless the context clearly dictates otherwise. As used in this specification, the terms "comprises" and/or "comprising" should be interpreted as specifying the presence of the stated features, integers, steps, operations, elements, components, and/or groups thereof, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.
As used herein, terms such as "vehicle" or "vehicular" or other similar terms will generally be understood to include automobiles including Sport Utility Vehicles (SUVs), buses, trucks, various commercial vehicles, watercraft including various yachts and boats, aircraft, and the like, and including hybrid automobiles, electric automobiles, plug-in hybrid automobiles, hydrogen powered automobiles, and other automobiles that substitute fuels (e.g., fuels from resources other than petroleum).
Further, it is understood that one or more of the following methods or aspects may be performed by at least one or more controllers. The term "controller" may refer to a hardware device that includes a memory and a processor. The memory is configured to store program instructions, and the processor is specifically programmed to execute the program instructions to perform one or more processes described in more detail below. As described herein, a controller may control the operation of a unit, module, component, device, or a similar device. Also, it should be understood that the following method may be performed by an apparatus including a controller and one or more other components, as recognized by one of ordinary skill in the art.
Also, the controller of the present invention may be implemented as a non-transitory computer-readable recording medium including executable program instructions executed by a processor. Examples of the computer readable recording medium include, but are not limited to, Read Only Memory (ROM), Random Access Memory (RAM), Compact Disc (CD) drives, magnetic tapes, floppy disks, flash memory disks, smart cards, and optical data storage devices. The computer readable recording medium CAN be distributed throughout a computer Network so that program instructions CAN be stored and executed in a distributed fashion, for example, in a telematics server (telematics server) or a Controller Area Network (CAN).
Fig. 1 schematically shows a leaf spring arrangement according to an embodiment of the invention mounted on an axle.
As shown in fig. 1, the leaf spring device 10 according to the embodiment of the present invention includes both ends and a central portion in the longitudinal direction. A first joint (joint) member 4 is installed at one end of the plate spring device 10, a second joint member 6 is installed at the other end of the plate spring device 10, and the second joint member 6 is coupled to a shacklelink 7. The shackle 7 allows the span (span) of the leaf spring arrangement 10 to be varied. Thus, one end of the leaf spring arrangement 10 is connected to a side frame (not shown) of the vehicle body via the first joint member 4, and the other end of the leaf spring arrangement 10 is connected to said side frame via the second joint member 6 and the shackle ring 7.
The central portion of the leaf spring device 10 is fixed to one end portion of the axle 1 by the first fixing member 8. The first fixing member 8 may be a U-bolt. Wheels 2 are mounted on both ends of the axle 1. Therefore, when vibration or impact is transmitted from the road surface to the wheel 2, the vibration or impact is transmitted to the leaf spring device 10 through the axle 1, and the leaf spring device 10 is unfolded to reduce the vibration or impact transmitted to the vehicle body.
Fig. 2 is a perspective view of a leaf spring device according to an embodiment of the present invention, fig. 3 is a front view of the leaf spring device according to the embodiment of the present invention, and fig. 4 is an exploded view of the leaf spring device according to the embodiment of the present invention.
As shown in fig. 2 to 4, the leaf spring device 10 according to the embodiment of the present invention includes a leaf spring 12 and an auxiliary spring 14. The rigidity of the auxiliary spring 14 may be different from that of the plate spring 12. For example, the rigidity of the auxiliary spring 14 is greater or less than that of the plate spring 12, so that the overall rigidity of the plate spring device 10 can be adjusted by mounting the auxiliary spring 14 having an appropriate rigidity on the plate spring 12. When the rigidity of the plate spring device 10 needs to be greater than that of the plate spring 12, an auxiliary spring 14 having rigidity greater than that of the plate spring 12 may be mounted on the plate spring 12. On the contrary, when the rigidity of the plate spring device 10 needs to be smaller than that of the plate spring 12, the auxiliary spring 14 having rigidity smaller than that of the plate spring 12 may be attached to the plate spring 12. Therefore, instead of a method of making a special mold according to the required rigidity of the leaf spring device 10, the rigidity of the leaf spring device 10 can be adjusted by replacing and mounting the auxiliary spring 14 having various rigidities on the leaf spring 12 having one rigidity.
The leaf spring 12 may be a single leaf spring made of a composite material. Here, the composite material includes two or more different materials. For example, the composite material may be a combination of plastic resin and glass fiber, but is not limited thereto. The leaf spring 12 may be formed in an appropriate shape to achieve the target rigidity, and may be manufactured using a mold.
At least one mounting hole 16 penetrating in the width direction is formed in the center of the plate spring 12. The auxiliary spring 14 is installed in the installation hole 16. For example, a pair of auxiliary springs 14a, 14b may be mounted in one mounting hole 16 using a bolt 20 and a nut 22. The fixing members shown here are the bolt 20 and the nut 22, but the fixing members are not limited to the bolt 20 and the nut 22. Various fixing members known to those skilled in the art so far can be used that can fix the pair of auxiliary springs 14a, 14b mounted in the mounting hole 16 to the plate spring 12. Also, the number of the auxiliary springs 14 mounted in one mounting hole 16 is not limited to two. An appropriate number of auxiliary springs 14 may be used, i.e. capable of distributing and supporting the load when applied to the leaf spring arrangement 10 without the auxiliary springs 14 disengaging from the leaf springs 12. For example, more than one additional auxiliary spring may be provided between the pair of auxiliary springs 14a, 14 b. Here, the sectional shape of the mounting hole 16 is exemplified as an ellipse, but is not limited thereto. The sectional shape of the mounting hole 16 may be a sectional shape in which the auxiliary spring 14 mounted in the mounting hole 16 can disperse and support a load when the load is applied to the leaf spring device 10. The cross-sectional shape of the mounting hole 16 may be an ellipse, a circle, a polygon, or the like.
If two or more mounting holes 16 are formed, the mounting holes 16 may be formed in a dispersed manner on both sides with respect to the center in the longitudinal direction of the plate spring 12. Also, an even number of mounting holes 16 may be formed. When an even number of the mounting holes 16 are formed, the mounting holes 16 may be formed symmetrically with respect to the load center in the longitudinal direction of the plate spring 12. Here, the load center of the leaf spring 12 refers to the center of the load applied from the axle 1 through the first fixing member 8. Since the mounting hole 16 is formed symmetrically with respect to the load center of the leaf spring 12, the auxiliary spring 14 mounted in the mounting hole 16 can uniformly disperse and support the load when the load is applied to the leaf spring device 10. Therefore, the rigidity of the leaf spring device 10 using the auxiliary spring 14 will be easily adjusted.
The assist spring 14 will be described in more detail below with reference to fig. 5 and 6.
Fig. 5 is a perspective view of an auxiliary spring according to an embodiment of the present invention, and fig. 6 is a front view of an auxiliary spring according to an embodiment of the present invention.
As shown in fig. 5 and 6, the auxiliary spring 14 may include a main body 34, a step 32, and a fixing hole 36.
The main body 34 may have a sectional shape corresponding to that of the mounting hole 16 to be inserted into the mounting hole 16 and to disperse and support a load applied to the leaf spring device 10. For example, the cross-sectional shape of the body 34 may be oval, circular, polygonal, etc.
The step 32 protrudes radially outward along the outer peripheral surface of one side in the width direction of the main body 34. When the pair of assist springs 14a, 14b are mounted in one mounting hole 16, steps 32 are formed on the outer peripheral surface of one side in the width direction of the first assist spring 14a and the outer peripheral surface of the other side in the width direction of the second assist spring 14b, respectively. In this case, the first auxiliary spring 14a is inserted into the mounting hole 16 from one side in the width direction of the plate spring 12, the second auxiliary spring 14b is inserted into the mounting hole 16 from the other side in the width direction of the plate spring 12, the bolt 20 and the nut 22 are coupled to each other and the first auxiliary spring 14a and the second auxiliary spring 14b are pulled to each other. At this time, the step 32 of the first auxiliary spring 14a and the step 32 of the second auxiliary spring 14b are respectively closely attached to the side surfaces of the plate spring 12 to increase the coupling force of the first auxiliary spring 14a and the second auxiliary spring 14b with the plate spring 12. Therefore, the load applied to the leaf spring device 10 is dispersed to and supported by the leaf spring 12, the first auxiliary spring 14a and the second auxiliary spring 14b, and the separation of the leaf spring 12 from the first auxiliary spring 14a and the second auxiliary spring 14b can be prevented.
The fixing hole 36 is formed to penetrate the assist spring 14 in the width direction. A fixing member such as a bolt 20 is inserted into the fixing hole 36 to mount the auxiliary spring 14 on the plate spring 12. For example, the pair of auxiliary springs 14a, 14b may be inserted into the mounting hole 16, the bolt 20 passes through the fixing hole 36 of the pair of auxiliary springs 14a, 14b, and the nut 22 is mounted on the end of the bolt 20 to mount the pair of auxiliary springs 14a, 14b on the plate spring 12.
The auxiliary spring 14 may be made of one material or, as shown in fig. 6, an insert 38 may be installed inside the auxiliary spring 14. When the auxiliary spring 14 is made of one material, the one material may be an elastic material such as rubber. Also, the auxiliary spring 14 may be made of a non-elastic material such as steel. In contrast, the auxiliary spring 14 may be made of an elastic material such as rubber, and the inside of the auxiliary spring 14 may be mounted with an insert 38 of a metal material. The material of the auxiliary spring 14 and whether the insert 38 is installed in the auxiliary spring 14 may be determined according to the desired rigidity of the auxiliary spring 14. The shape of the insert 38 is not limited thereto, but the shape of the insert 38 may be similar to that of the auxiliary spring 14.
Fig. 7 is a schematic view showing a system for performing a mounting method of the leaf spring device according to the embodiment of the present invention.
As shown in fig. 7, a system according to an embodiment of the invention may include a sensor 52, a controller 50, a display 54, and a manufacturer 56.
The sensor 52 can detect data for determining whether the stiffness of the leaf spring arrangement 10 needs to be adjusted. In one example, the sensors 52 may be load sensors mounted on the wheels 2 on both sides, respectively. In this case, the sensor 52 measures the reaction force acting on the wheel 2, so that the controller 50 can judge whether or not the rigidity of the leaf spring device 10 needs to be adjusted. In another example, the sensor 52 may be a torque sensor mounted on the axle 1. In this case, the sensor 52 measures the torque of the axle 1 so that the controller 50 can determine whether the stiffness of the leaf spring arrangement 10 needs to be adjusted.
The controller 50 is communicatively connected to the sensor 52 to receive data measured by the sensor 52. The controller 50 may determine whether the stiffness of the leaf spring arrangement 10 needs to be adjusted based on data from the sensor 52. Also, the controller 50 may determine a target stiffness of the assist spring 14 based on data from the sensor 52. The controller 50 is communicatively connected to a display 54 and a maker 56 to transmit the determination results to the display 54 and the maker 56.
A display 54 may be mounted in a suitable location to inform a user whether the stiffness of the leaf spring arrangement 10 and the target stiffness of the auxiliary spring 14 need to be adjusted. A speaker (not shown) may be installed instead of the display 54 or together with the display 54 to audibly inform whether the rigidity of the plate spring device 10 and the target rigidity of the auxiliary spring 14 need to be adjusted.
The maker 56 is a device that manufactures the leaf spring device 10. The maker 56 may separate the auxiliary spring 14 from the plate spring 12 by the control of the controller 50 or by the operation of the user, and assemble the auxiliary spring 14 having a target rigidity on the plate spring 12.
Hereinafter, a method of mounting the leaf spring device 10 according to the embodiment of the present invention will be described with reference to fig. 8, 9, and 10.
Fig. 8 is a flowchart showing a mounting method of a leaf spring device according to an embodiment of the present invention, fig. 9 schematically shows a case where a vehicle height difference occurs in a width direction of a vehicle, and fig. 10 schematically shows a case where a leaf spring device according to an embodiment of the present invention is applied to solve the vehicle height difference occurring in the width direction of the vehicle.
As shown in fig. 8, the mounting method of the leaf spring device 10 according to the embodiment of the present invention is started by preparing the leaf spring device 10 (S110). As described above, the leaf spring device 10 may include the leaf spring 12 and the auxiliary spring 14. Here, the auxiliary spring 14 having a predetermined rigidity is attached to the leaf spring 12, and thus the leaf spring device 10 has a predetermined rigidity.
After the leaf spring device 10 is prepared, the leaf spring device 10 is mounted on the vehicle by the control of the controller 50 or the operation of the user (S120).
After that, the sensor 52 detects data for determining whether or not the rigidity of the leaf spring device 10 needs to be adjusted, and transmits the detected data to the controller 50. The controller 50 determines whether or not the rigidity of the leaf spring device 10 needs to be adjusted based on the data. For example, as shown in fig. 9, the controller 50 determines whether a vehicle height difference in the width direction occurs based on the data (S130).
When the vehicle height difference in the width direction occurs in step S130, the controller 50 determines the rigidity of the assist spring 14 according to the vehicle height difference in the width direction. For example, the controller 50 determines the target rigidity of one leaf spring device 10 and the other leaf spring device 10 mounted on both sides of the axle 1 based on the vehicle height difference in the width direction. And, based on the target stiffness of one leaf spring arrangement 10 and the target stiffness of the other leaf spring arrangement 10, the controller 50 determines the stiffness of the auxiliary spring 14 for each leaf spring arrangement 10.
Thereafter, the controller 50 mounts the auxiliary spring 14 having a certain rigidity on the plate spring 12 (S150), and mounts the plate spring device 10 mounted with the auxiliary spring 14 on the vehicle (S120).
After that, the controller 50 determines whether there is still a vehicle height difference in the width direction occurring through the sensor 52 (S130). If there is still a vehicle height difference in the width direction, the controller 50 will repeatedly perform steps S140, S150, S120, and S130.
As shown in fig. 10, if the vehicle height difference in the width direction does not occur, the controller 50 ends the method according to the embodiment of the invention.
The preferred embodiments of the present invention have been described above, but the present invention is not limited to the embodiments, and includes all modifications within the scope which can be easily modified by a person having ordinary skill in the art to which the present invention pertains and which are considered to be equivalent.
Claims (12)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200097586A KR102763522B1 (en) | 2020-08-04 | 2020-08-04 | Leaf spring apparatus and method of mounting the same |
| KR10-2020-0097586 | 2020-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114056019A true CN114056019A (en) | 2022-02-18 |
Family
ID=80233103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011112959.6A Pending CN114056019A (en) | 2020-08-04 | 2020-10-16 | Leaf spring device and installation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR102763522B1 (en) |
| CN (1) | CN114056019A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030030236A1 (en) * | 2000-05-04 | 2003-02-13 | Glass Michael Franklin | Vehicle suspension systems |
| KR101251530B1 (en) * | 2011-10-20 | 2013-04-05 | 현대자동차주식회사 | Anti roll system for vehicles |
| CN203198671U (en) * | 2013-04-28 | 2013-09-18 | 株洲时代新材料科技股份有限公司 | Spring suspension frame |
| CN104842734A (en) * | 2014-02-14 | 2015-08-19 | 北汽福田汽车股份有限公司 | Composite material-made plate spring and automobile |
| DE102017217598A1 (en) * | 2017-10-04 | 2019-04-04 | Ford Global Technologies, Llc | spring assembly |
| CN109878285A (en) * | 2019-02-01 | 2019-06-14 | 株洲时代新材料科技股份有限公司 | A kind of flat spring and rubber spring compound suspension frame system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200149896Y1 (en) * | 1995-12-20 | 1999-06-15 | 정몽규 | Lift String Fastening Structure |
| US6361032B1 (en) * | 2000-06-30 | 2002-03-26 | Visteon Global Technologies, Inc. | Composite leaf spring with improved lateral stiffness |
| CN105358860B (en) * | 2013-03-15 | 2017-05-10 | 普立万公司 | High-strength light-weight composite material leaf spring and manufacturing method thereof |
| CN209395529U (en) * | 2018-12-13 | 2019-09-17 | 北航（四川）西部国际创新港科技有限公司 | A kind of compound leaf spring of built-in type and automobile suspension system |
-
2020
- 2020-08-04 KR KR1020200097586A patent/KR102763522B1/en active Active
- 2020-10-16 CN CN202011112959.6A patent/CN114056019A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030030236A1 (en) * | 2000-05-04 | 2003-02-13 | Glass Michael Franklin | Vehicle suspension systems |
| KR101251530B1 (en) * | 2011-10-20 | 2013-04-05 | 현대자동차주식회사 | Anti roll system for vehicles |
| CN203198671U (en) * | 2013-04-28 | 2013-09-18 | 株洲时代新材料科技股份有限公司 | Spring suspension frame |
| CN104842734A (en) * | 2014-02-14 | 2015-08-19 | 北汽福田汽车股份有限公司 | Composite material-made plate spring and automobile |
| DE102017217598A1 (en) * | 2017-10-04 | 2019-04-04 | Ford Global Technologies, Llc | spring assembly |
| CN109878285A (en) * | 2019-02-01 | 2019-06-14 | 株洲时代新材料科技股份有限公司 | A kind of flat spring and rubber spring compound suspension frame system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20220017286A (en) | 2022-02-11 |
| KR102763522B1 (en) | 2025-02-05 |
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