CN219236697U - Leaf spring suspension and vehicle at adjustable leaf spring angle of inclination - Google Patents
Leaf spring suspension and vehicle at adjustable leaf spring angle of inclination Download PDFInfo
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- CN219236697U CN219236697U CN202223328530.8U CN202223328530U CN219236697U CN 219236697 U CN219236697 U CN 219236697U CN 202223328530 U CN202223328530 U CN 202223328530U CN 219236697 U CN219236697 U CN 219236697U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The utility model provides a leaf spring suspension capable of adjusting the inclination angle of a leaf spring and a vehicle; relates to the field of vehicle suspensions, aims at solving the problem that the inclination angle of the prior leaf spring suspension is inconvenient to adjust according to the requirement, the two ends of the plate spring are respectively provided with a telescopic mechanism, the distance between the end part of the vehicle body and the vehicle frame is adjusted, the inclination angle of the plate spring is adjusted according to the load, the rigidity of the side wall of the vehicle body is adjusted, and the steering stability during turning is improved.
Description
Technical Field
The utility model relates to the field of vehicle suspensions, in particular to a leaf spring suspension with an adjustable leaf spring inclination angle and a vehicle.
Background
At present, most of common leaf spring suspensions are pull-type lifting lug leaf springs and press-type lifting lug leaf springs, and after the leaf springs are installed on a whole vehicle, the inclination angles of the leaf springs are fixed. As the load increases, the two ends of the leaf spring are compressed, the deformation amounts of the two ends of the leaf spring are different, and the inclination angle of the corresponding leaf spring is also changed.
The inclination angle of the leaf spring itself has a certain reinforcing effect on the roll stiffness of the vehicle body, and when the inclination angle of the leaf spring is reduced, the roll stiffness of the vehicle body is reduced, and when the vehicle turns, the vehicle body is more liable to roll, and the steering stability is deteriorated. The existing air suspension can also adjust the supporting position and the frame spacing according to the requirements, but is mostly suitable for passenger cars, is not suitable for commercial vehicles with heavy loads, and the adjusting range of the existing air suspension cannot meet the requirement of reinforcing the roll rigidity of the commercial vehicle body.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a leaf spring suspension and a vehicle with an adjustable leaf spring inclination angle, wherein telescopic mechanisms are respectively arranged at two ends of a leaf spring, the distance between the end part of the leaf spring and a vehicle frame is adjusted, the adjustment of the leaf spring inclination angle is realized according to a load, the side wall rigidity of the vehicle body is adjusted, and the steering stability during turning is improved.
The first object of the utility model is to provide a leaf spring suspension with an adjustable leaf spring inclination angle, which adopts the following technical scheme:
including leaf spring and leaf spring support, leaf spring support installs in the frame, and leaf spring end connection is in leaf spring support bottom tie point, and the leaf spring support all cooperates with telescopic machanism, and telescopic machanism can drive the tie point of leaf spring support and remove to change the vertical interval of tie point and frame, thereby adjust the angle of inclination that this tie point corresponds the leaf spring.
Further, one end of the leaf spring is connected with the connecting point of the leaf spring support through a lifting lug, one end of the lifting lug is hinged with the leaf spring, and the other end of the lifting lug is hinged with the leaf spring support.
Further, the two ends of the lifting lug are hinged through the lifting lug pin respectively, and the lifting lug is suspended below the end part of the connected leaf spring.
Further, the other end of the leaf spring is hinged with a connecting point of the leaf spring bracket through a steel plate pin.
Further, the telescopic mechanism comprises a hydraulic cylinder and a control assembly, the hydraulic cylinder is connected with a hydraulic source through the control assembly, and the control assembly is used for controlling the hydraulic cylinder to act so as to change or maintain the position of the connecting point.
Further, the control assembly comprises a throttle valve and a reversing valve, the throttle valve is connected with a hydraulic source, an overflow valve is arranged between the throttle valve and the hydraulic source, and the reversing valve is connected with a hydraulic cylinder.
Further, the hydraulic source comprises a hydraulic pump and a hydraulic oil tank, and the output end of the hydraulic pump is respectively connected with the throttle valve and the overflow valve.
Further, the path of the connecting point moving driven by the telescopic mechanism is vertical to the frame.
Further, the telescoping mechanism may employ an electric telescoping member, a pneumatic telescoping member, and/or a hydraulic telescoping member.
A second object of the present utility model is to provide a vehicle using the leaf spring suspension of the first object, in which the inclination angle of the leaf spring can be adjusted.
Compared with the prior art, the utility model has the advantages and positive effects that:
(1) Aiming at the problem that the inclination angle of the existing leaf spring suspension is inconvenient to adjust according to requirements, telescopic mechanisms are respectively arranged at two ends of the leaf spring, the distance between the end of the leaf spring and a frame is adjusted, the inclination angle of the leaf spring is adjusted according to a load, the rigidity of a side wall of a vehicle body is adjusted, and the steering stability during turning is improved.
(2) Simultaneously set up telescopic machanism on the leaf spring support that corresponds at leaf spring both ends, adjust the tie point of both ends leaf spring support and leaf spring according to the demand, realize that the linkage is started to, and the response is more rapid, satisfies the demand of adjustment leaf spring angle of inclination when the commercial car is to different loads.
(3) The hydraulic cylinder is matched with the control assembly to realize the adjustment of the distance between the connecting point and the frame, the hydraulic system is simple in structure and good in stability, and can be directly connected into a hydraulic power source of the whole vehicle, so that the additional arrangement of the power source is omitted, and the overall complexity is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
Fig. 1 is a schematic view of a prior art leaf spring suspension.
Fig. 2 is a schematic structural view of a leaf spring suspension of embodiments 1 and 2 of the present utility model in which the inclination angle of the leaf spring is adjustable.
Fig. 3 is a schematic structural view of the telescopic mechanism in embodiments 1 and 2 of the present utility model.
In the figure, 1, a frame, 2, a plate spring support, 3, a steel plate pin, 4, a plate spring, 5, an axle, 6, a lifting lug, 7, a lifting lug pin, 8, a hydraulic oil tank, 9, an oil filter, 10, a hydraulic pump, 11, an electric control throttle valve, 12, an electric control reversing valve, 13, a hydraulic cylinder, 14, an electric control overflow valve, 15, a hydraulic piston, 16 and an oil pipe.
Detailed Description
Example 1
In an exemplary embodiment of the present utility model, as shown in fig. 2-3, a leaf spring suspension is provided that can adjust the angle of inclination of a leaf spring.
As shown in fig. 1, after the pull-type lifting lug 6 plate spring 4 or the press-type lifting lug 6 plate spring 4 on the current commercial vehicle is installed on the whole vehicle, the plate spring inclination angle alpha is fixed, and the plate spring inclination angle alpha corresponding to the plate spring suspension cannot be actively adjusted, but the current vehicle has the requirement of adjusting the plate spring inclination angle alpha so as to enhance the roll rigidity of the vehicle body.
Based on this, this embodiment provides a leaf spring suspension of adjustable leaf spring angle of inclination, sets up telescopic machanism on leaf spring support 2, can adjust the tie point that leaf spring support 2 supplies leaf spring 4 to connect, changes tie point and frame 1's interval to adjust leaf spring 4 tip position, reach the demand of adjusting leaf spring angle of inclination alpha as required.
Next, a leaf spring suspension of this embodiment in which the inclination angle of the leaf spring is adjustable will be described in detail with reference to the accompanying drawings.
Referring to fig. 2, the leaf spring suspension with the leaf spring inclination angle adjustable mainly comprises a leaf spring 4, a leaf spring bracket 2, a telescopic mechanism and a lifting lug 6, wherein two ends of the leaf spring 4 are respectively connected with a frame 1 through the corresponding leaf spring bracket 2, the middle part of the leaf spring 4 is connected with an axle 5, and the supporting force of the axle 5 is transmitted to the frame 1 through the leaf spring 4 and the leaf spring bracket 2; one end of the plate spring 4 is directly connected to the plate spring support 2, the other end of the plate spring 4 is connected with the plate spring support 2 through the lifting lug 6, the plate spring support 2 is connected with a telescopic mechanism, the end part of the plate spring 4 is connected to a connecting point at the bottom of the plate spring support 2, the connecting point of the plate spring support 2 is driven to move through the telescopic mechanism, and accordingly the position of the end part of the plate spring 4 corresponding to the connecting point is driven to move, the vertical distance between the connecting point and the frame 1 is changed, and accordingly the plate spring inclination angle alpha of the plate spring corresponding to the plate spring 4 at the connecting point is adjusted.
In the present embodiment, compared with adjusting the connection position of the single leaf spring support 2, the leaf spring supports 2 corresponding to the two ends of the leaf spring 4 are configured with telescopic mechanisms, so that the telescopic mechanisms corresponding to the leaf spring supports 2 at the two ends can be simultaneously or individually adjusted, and the adjustment speed can be increased when the connection point positions of the leaf spring supports 2 are simultaneously adjusted; when the connection point positions are individually adjusted, accurate adjustment of the leaf spring inclination angle α of the leaf spring 4 can be achieved.
For the structure of the leaf spring suspension with the inclination angle of the leaf spring adjustable, one end of the leaf spring 4 is connected with the connecting point of the leaf spring bracket 2 through the lifting lug 6, one end of the lifting lug 6 is hinged with the leaf spring 4, and the other end is hinged with the leaf spring bracket 2.
The tie point in this embodiment can adopt structures such as pinhole, through-hole to adopt the pinhole to take the example, and lug 6 both ends are realized articulating through lug round pin 7 respectively, and the one end of lug 6 is realized articulating through the pinhole on lug round pin 7 cooperation leaf spring support 2, and the other end is realized articulating through the preformed hole of lug round pin 7 cooperation leaf spring 4 tip.
The lug 6 hangs the below of connecting leaf spring 4 tip, and lug 6 both ends are equipped with foraminiferous otic placode respectively, and area Kong Er board can realize normal running fit with lug round pin 7, and lug round pin 7 both ends all are equipped with the backstop, such as jump ring, backing pin etc..
The both ends of leaf spring 4 all are equipped with the preformed hole, and the one end that lug 6 was kept away from to leaf spring 4 articulates the tie point of leaf spring support 2 through steel plate round pin 3, and steel plate round pin 3 passes preformed hole and tie point department pinhole, realizes the rotation of leaf spring 4 and leaf spring 4 support and is connected. Similarly, stoppers may be provided at both ends of the steel plate pin 3, and a clip spring, a stopper pin, or the like may be used.
The telescopic mechanism can be selected according to the requirements, and an electric telescopic element, a pneumatic telescopic element or a hydraulic telescopic element or a combined structure of the two elements and the three elements is adopted. In this embodiment, an electronically controlled hydraulic component is used as an example.
As shown in fig. 2, the telescopic mechanism comprises a hydraulic cylinder 13 and a control assembly, wherein the hydraulic cylinder 13 is connected with a hydraulic source through the control assembly, and the control assembly is used for controlling the hydraulic cylinder 13 to act so as to change or maintain the position of the connecting point.
The control component can adjust the expansion and contraction amount of the hydraulic cylinder 13, and the control component performs data calibration on the relation between the plate spring inclination angle alpha and the steering stability in turning under different loads, so that the hydraulic piston 15 is pushed to move upwards or downwards according to the pressure at the two ends of the hydraulic piston 15 of the load adjusting hydraulic cylinder 13, the hydraulic piston 15 is enabled to move to a required position, the plate spring inclination angle alpha is adjusted, the roll rigidity of a vehicle body is adjusted, and the optimal steering stability under different loads is obtained.
The control assembly comprises a throttle valve and a reversing valve, the throttle valve is connected with a hydraulic source, an overflow valve is arranged between the throttle valve and the hydraulic source, and the reversing valve is connected with a hydraulic cylinder 13 as shown in fig. 3.
Corresponding to the electric control hydraulic element adopted in the embodiment, the throttle valve can adopt an electric control throttle valve 11 which is connected with the ECU of the vehicle to realize the adjustment of throttle parameters; the reversing valve can adopt an electric control reversing valve 12, and the ECU connected to the vehicle realizes the switching of the hydraulic oil conveying direction; the overflow valve can adopt an electric control overflow valve 14, and the ECU connected to the vehicle realizes the adjustment of overflow parameters.
In addition, the hydraulic source can directly adopt a hydraulic system of the vehicle, and an independent hydraulic source can be arranged to supply hydraulic cylinders 13 for driving according to the requirements; the hydraulic source comprises a hydraulic pump 10 and a hydraulic oil tank 8, wherein the input end of the hydraulic pump 10 is connected with the hydraulic oil tank 8 through an oil filter 9, the output end of the hydraulic pump 10 is respectively connected with a throttle valve and an overflow valve, and all the hydraulic elements are connected through an oil pipe 16.
The path of the telescopic mechanism driving the connection point to move is vertical to the frame 1, the telescopic mechanism is arranged on the corresponding plate spring support 2 at the two ends of the plate spring 4, the connection points of the plate spring support 2 at the two ends and the plate spring 4 are adjusted according to the requirement, the linkage starting is realized, the response is quicker, the requirement of the commercial vehicle on adjusting the inclination angle alpha of the plate spring under different loads is met, the adjustment efficiency is improved,
it will be appreciated that other forms of telescoping mechanisms, pneumatic telescoping mechanisms, mechanically driven telescoping mechanisms, such as gear, rack drive or ball screw drive, etc., may be used depending on the actual needs.
In actual operation, the relationship between the load and the leaf spring inclination angle α, the relationship between the load and the hydraulic piston 15 position, and the relationship between the load and the hydraulic piston 15 position are established by subjective evaluation of the relationship between the load, the yaw rate, the leaf spring inclination angle α degree, the vehicle body roll rigidity, the steering stability at the time of turning, and the like, and are controlled in a closed loop.
According to the inclination angle alpha of the plate spring, the roll rigidity of the vehicle body is adjusted according to the load, the steering stability during turning is improved, and the running safety of the vehicle is improved.
Example 2
In another embodiment of the present utility model, a vehicle is provided as shown in fig. 2-3.
The vehicle in this embodiment utilizes a leaf spring suspension in which the inclination angle of the leaf spring is adjustable as in embodiment 1.
The axle 5 and the frame 1 of the vehicle are connected through the leaf spring suspension of the adjustable leaf spring inclined angle, the supporting force of the axle 5 is transmitted to the frame 1, the telescopic mechanism is adjusted according to the requirement, the position of the connecting point on the leaf spring suspension is changed, and therefore the position of the end part of the leaf spring 4 is adjusted, and the purpose of adjusting the leaf spring inclined angle alpha is achieved. Since the plate spring suspension with the adjustable plate spring inclination angle as in embodiment 1 is mounted on the vehicle, the advantageous effects brought by the plate spring suspension with the adjustable plate spring inclination angle are described in embodiment 1 and are not described in detail herein.
For other structures in the vehicle that are not mentioned, existing structures may be employed.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a leaf spring suspension of adjustable leaf spring angle of inclination, its characterized in that includes leaf spring and leaf spring support, and the leaf spring support is installed in the frame, and leaf spring end connection is in leaf spring support bottom tie point, and the leaf spring support all cooperates with telescopic machanism, and telescopic machanism can drive the tie point of leaf spring support and remove to change the vertical interval of tie point and frame, thereby adjust the angle of inclination that this tie point corresponds the leaf spring.
2. The leaf spring suspension of claim 1 wherein the leaf spring has one end connected to the leaf spring bracket connection point by a shackle, one end of the shackle being hinged to the leaf spring and the other end being hinged to the leaf spring bracket.
3. The leaf spring suspension of claim 2 wherein the shackle is hinged at each end by a shackle pin, the shackle being suspended below the end of the attached leaf spring.
4. The leaf spring suspension of claim 2 wherein the other end of the leaf spring is hinged to the connection point of the leaf spring bracket by a steel plate pin.
5. The leaf spring suspension of claim 1 wherein the telescoping mechanism comprises a hydraulic cylinder and a control assembly, the hydraulic cylinder being connected to a hydraulic source by the control assembly, the control assembly being configured to control the operation of the hydraulic cylinder to change or maintain the position of the connection point.
6. The leaf spring suspension of claim 5 wherein the control assembly comprises a throttle valve and a reversing valve, the throttle valve being connected to a hydraulic source, an overflow valve being provided between the throttle valve and the hydraulic source, the reversing valve being connected to a hydraulic cylinder.
7. The leaf spring suspension of claim 6 wherein the hydraulic source comprises a hydraulic pump and a hydraulic tank, the output of the hydraulic pump being connected to a throttle valve and a relief valve, respectively.
8. The leaf spring suspension of claim 1 wherein the telescoping mechanism moves the connection point along a path perpendicular to the frame.
9. Leaf spring suspension with adjustable leaf spring tilt angle according to claim 1, characterized in that the telescopic mechanism may employ electric telescopic elements, pneumatic telescopic elements and/or hydraulic telescopic elements.
10. A vehicle characterized by using a leaf spring suspension according to any one of claims 1-9 with an adjustable leaf spring tilt angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223328530.8U CN219236697U (en) | 2022-12-12 | 2022-12-12 | Leaf spring suspension and vehicle at adjustable leaf spring angle of inclination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223328530.8U CN219236697U (en) | 2022-12-12 | 2022-12-12 | Leaf spring suspension and vehicle at adjustable leaf spring angle of inclination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219236697U true CN219236697U (en) | 2023-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223328530.8U Active CN219236697U (en) | 2022-12-12 | 2022-12-12 | Leaf spring suspension and vehicle at adjustable leaf spring angle of inclination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219236697U (en) |
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2022
- 2022-12-12 CN CN202223328530.8U patent/CN219236697U/en active Active
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