Lantern-shaped suspension spring structure

Abstract

The utility model discloses a lantern-shaped suspension spring structure, which comprises ear plates, plate spring pieces, through holes, bolts, an upper cover plate, a damper and a lower cover plate, and is characterized in that the upper end and the lower end of each plate spring piece are respectively and fixedly connected with the ear plates, the middle part of each ear plate is provided with the through hole, and the bolt is arranged in the through hole. The lug plates at the upper ends of the plate spring pieces are fixedly connected to the edge of the lower side of an upper cover plate through the bolts, and the bolts on the upper portion of the plate spring pieces penetrate through the corresponding through holes and the upper cover plate. The lug plates at the lower ends of the plate spring pieces are fixedly connected to the edge of the upper side of the lower cover plate through the bolts, and the bolts on the lower portion penetrate through the corresponding through holes and the lower cover plate. The middle of the upper portion of the lower cover plate is fixedly connected with the lower end of a shell of a damper, and the upper end of a telescopic shaft of the damper is fixedly connected with the middle of the lower side of the lower cover plate. The adjustable damping device can achieve adjustable damping of the vehicle.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts manufacturing, in particular to a lantern-shaped suspension spring structure. Background Art

[0002] Suspension springs act as elastic elements in the suspension system. They make elastic connections between the frame and the axle, bear and transmit vertical loads, and mitigate and suppress the impact caused by uneven roads. The suspension springs used in common automobile suspension systems mainly include leaf springs, coil springs, air springs and other structural forms.

[0003] Among the suspension springs currently on the market, air suspension springs have the best shock absorption effect. Compared with ordinary suspension, air suspension can extend the service life of the vehicle, buffer the impact of the road surface, improve the comfort of the whole vehicle, and reduce the damage of the vehicle to the road surface. In the current domestic research reports on air spring rubber airbags, the rubber formula is mostly based on natural rubber as the main material, or natural rubber and chlorinated butyl rubber, or natural rubber and butadiene rubber. Due to the high cost of natural rubber and its poor aging resistance, wear resistance, and stone impact resistance, the service life of the rubber airbag is affected, making the service life of domestic air spring rubber airbags generally around 4-6 years.

[0004] Therefore, a suspension spring with low cost, excellent aging resistance, wear resistance and stone impact resistance and the same function as an air spring is needed to solve the above technical problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a lantern-shaped suspension spring structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A lantern-shaped suspension spring structure, comprising an ear plate, a leaf spring, a through hole, a bolt, an upper cover plate, a damper and a lower cover plate, characterized in that: the upper and lower ends of each leaf spring are respectively fixedly connected to the ear plate, a through hole is provided in the middle of each ear plate, the upper ear plate of a group of leaf springs is fixedly connected to the lower edge of the upper cover plate by the bolt, and the upper group of bolts passes through the corresponding through holes and the upper cover plate;

[0008] The ear plates at the lower ends of a group of leaf springs are fixedly connected to the upper edge of the lower cover plate by the bolts, and a group of bolts at the lower part pass through the corresponding through holes and the lower cover plate;

[0009] The middle part of the upper part of the lower cover plate is fixedly connected to the lower end of the housing of the damper, and the upper end of the telescopic shaft of the damper is fixedly connected to the middle part of the lower side of the lower cover plate.

[0010] Preferably, a thread is provided on the outer side of the damper shell, the damper shell is threadedly connected to an adjusting nut, a spring is fixedly connected to the upper side of the adjusting nut, the spring surrounds the outer side of the damper, the upper end of the spring is fixedly connected to an annular plate, and the telescopic shaft of the damper passes through the middle of the annular plate.

[0011] Preferably, the upper cover plate and the lower cover plate are circular or polygonal in shape.

[0012] The number of the leaf springs is three or more, and they are evenly distributed between the upper cover plate and the lower cover plate in a circular array.

[0013] Preferably, the angle between adjacent leaf springs is 360° divided by the number of leaf springs provided.

[0014] Preferably, the rolling thickness of the leaf spring is in the range of 5-50 mm, and the bending arc is in the range of 5-45°. The rolling thickness and bending arc of the leaf spring are determined according to the design requirements of the lantern-shaped suspension spring.

[0015] Preferably, one side of the upper cover plate and the lower cover plate is respectively fixedly connected to a group of mounting connecting plates.

[0016] Compared with the related art, the beneficial effects of the utility model are:

[0017] The constituent material of the lantern-shaped spring structure is different from the rubber material of the air spring, and has the characteristics of high fatigue resistance and high corrosion resistance, thereby extending the service life.

[0018] When driving on bumpy roads, the annular plate can be adjusted to separate from the upper cover plate, so that a group of leaf springs and dampers can be used to achieve shock absorption, and the shock absorption effect is relatively soft. When driving on flat roads, the annular plate can be adjusted to fit the upper cover plate, so that a group of leaf springs and springs can be used to achieve shock absorption, and the shock absorption effect is relatively hard. The shock absorption effect of the spring structure can be adjusted by adjusting the up and down movement of the spring, thereby comprehensively improving ride comfort and handling stability.

[0019] The lantern-shaped spring structure contains components that are all located inside the spring, so it takes up less space in the suspension system and can completely replace the air spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional schematic diagram of the utility model Figure 1 .

[0021] Figure 2 A three-dimensional schematic diagram of the utility model Figure 2 .

[0022] Figure 3 A three-dimensional schematic diagram of the utility model Figure 3 .

[0023] Figure 4 The structure of some parts of the utility model is shown in FIG. Figure 1 .

[0024] Figure 5 The structure of some parts of the utility model is shown in FIG. Figure 2 .

[0025] In the figure:

[0026] 1. Ear plate, 2. Leaf spring, 3. Through hole, 4. Bolt, 5. Upper cover, 6. Damper, 7. Ring plate, 8. Spring, 9. Adjusting nut, 10. Mounting connecting plate, 11. Lower cover. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] A lantern-shaped suspension spring structure, comprising an ear plate 1, a leaf spring 2, a through hole 3, a bolt 4, an upper cover plate 5, a damper 6 and a lower cover plate 11, wherein the upper and lower ends of each leaf spring 2 are respectively fixedly connected to the ear plate 1, a through hole 3 is provided in the middle of each ear plate 1, the upper end of a group of leaf springs 2, the ear plate 1 is fixedly connected to the lower edge of the upper cover plate 5 by the bolt 4, and the upper group of bolts 4 passes through the corresponding through holes 3 and the upper cover plate 5;

[0029] The ear plate 1 at the lower end of a group of leaf springs 2 is fixedly connected to the upper edge of the lower cover plate 11 by the bolts 4, and the lower group of bolts 4 passes through the corresponding through holes 3 and the lower cover plate 11;

[0030] The middle part of the upper part of the lower cover plate 11 is fixedly connected to the lower end of the housing of the damper 6 , and the upper end of the telescopic shaft of the damper 6 is fixedly connected to the middle part of the lower side of the lower cover plate 11 .

[0031] The outer side of the shell of the damper 6 is provided with a thread, and the shell of the damper 6 is threadedly connected to an adjusting nut 9. A spring 8 is fixedly connected to the upper side of the adjusting nut 9. The spring 8 surrounds the outer side of the damper 6. The upper end of the spring 8 is fixedly connected to an annular plate 7. The telescopic axis of the damper 6 passes through the middle of the annular plate 7.

[0032] The upper cover plate 5 and the lower cover plate 11 are circular or polygonal in shape.

[0033] The number of the leaf springs 2 is three or more, and they are evenly distributed between the upper cover plate 5 and the lower cover plate 11 in a circular array.

[0034] The angle between adjacent leaf spring pieces 2 is 360° divided by the number of leaf spring pieces 2 provided.

[0035] The rolling thickness of the leaf spring 2 is in the range of 5-50 mm, and the bending arc is in the range of 5-45°. The rolling thickness and bending arc of the leaf spring 2 are determined according to the design requirements of the lantern-shaped suspension spring.

[0036] A set of mounting connecting plates 10 are fixedly connected to one side of the upper cover plate 5 and the lower cover plate 11 respectively.

[0037] Working principle: When using this spring structure, firstly, a set of upper mounting connecting plates 10 are used to fix the upper cover plate 5 to the lower side of the frame with bolts, and a set of lower mounting connecting plates 10 are used to fix the lower cover plate 11 to the wheel assembly with bolts. When the vehicle body encounters a relatively bumpy road section, the adjusting nut 9 is rotated to move downward, and the adjusting nut 9 drives the spring 8 and the annular plate 7 to move downward, so that the annular plate 7 is separated from the upper cover plate 5. When encountering bumps, a set of leaf springs 2 of this spring structure are bent and deformed to achieve shock absorption, and the damper 6 absorbs the kinetic energy of the vibration to avoid repeated vibration of a set of leaf springs 2. In the above state, only one set of leaf springs 2 cooperates with the damper 6 to achieve shock absorption, and the shock absorption effect is relatively soft, so that this spring structure absorbs a large amount of impact on the vehicle body caused by uneven ground, reduces the bumps of the vehicle body, and greatly improves the riding comfort.

[0038] When driving on a flat road, the adjusting nut 9 is turned to move upward, and the adjusting nut 9 drives the spring 8 and the annular plate 7 to move upward, so that the annular plate 7 fits the upper cover plate 5. When encountering bumps, a group of leaf springs 2 of the spring structure are bent and deformed to achieve shock absorption, and at the same time, they are compressed and rebounded with the spring 8 to achieve shock absorption. The damper 6 absorbs the kinetic energy of the vibration to avoid repeated vibration of a group of leaf springs 2 and springs 8. In the above state, only one group of leaf springs 2 and springs 8 cooperate with the damper 6 to achieve shock absorption, so that the shock absorption effect of the spring structure is relatively hard. The relatively hard shock absorption effect can make the body roll less when making rapid corners such as serpentine slalom. Therefore, when overtaking and driving on mountain roads, the flexibility of the vehicle can be improved, the sportiness and controllability of the vehicle body can be enhanced, and the speed increase will also be greatly increased.

[0039] Beneficial effect: On bumpy roads, the annular plate 7 can be adjusted to separate from the upper cover plate 5, so that a group of leaf springs 2 cooperate with the damper 6 to achieve shock absorption, and the shock absorption effect is relatively soft. On flat roads, the annular plate 7 can be adjusted to fit the upper cover plate 5, so that a group of leaf springs 2 and springs 8 cooperate with the damper 6 to achieve shock absorption, and the shock absorption effect is relatively hard. The shock absorption effect of the spring structure can be adjusted by adjusting the up and down movement of the spring 8, thereby comprehensively improving ride comfort and handling stability.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lantern-shaped suspension spring structure, comprising an ear plate (1), a leaf spring (2), a through hole (3), a bolt (4), an upper cover plate (5), a damper (6) and a lower cover plate (11), characterized in that: The upper and lower ends of each leaf spring (2) are respectively fixedly connected to the ear plate (1); a through hole (3) is provided in the middle of each ear plate (1); the ear plate (1) at the upper end of a group of leaf springs (2) is fixedly connected to the lower edge of the upper cover plate (5) by means of the bolts (4); the upper group of bolts (4) passes through the corresponding through holes (3) and the upper cover plate (5); The ear plates (1) at the lower ends of a group of leaf springs (2) are fixedly connected to the upper edge of the lower cover plate (11) via the bolts (4), and a group of the bolts (4) at the lower end pass through the corresponding through holes (3) and the lower cover plate (11); The middle part of the upper part of the lower cover plate (11) is fixedly connected to the lower end of the shell of the damper (6), and the upper end of the telescopic shaft of the damper (6) is fixedly connected to the middle part of the lower side of the lower cover plate (11).

2. The lantern-shaped suspension spring structure according to claim 1, characterized in that: The outer side of the shell of the damper (6) is provided with a thread, the shell of the damper (6) is threadedly connected to an adjusting nut (9), the upper side of the adjusting nut (9) is fixedly connected to a spring (8), the spring (8) surrounds the outer side of the damper (6), the upper end of the spring (8) is fixedly connected to an annular plate (7), and the telescopic shaft of the damper (6) passes through the middle of the annular plate (7).

3. The lantern-shaped suspension spring structure according to claim 1, characterized in that: The upper cover plate (5) and the lower cover plate (11) are circular or polygonal in shape.

4. The lantern-shaped suspension spring structure according to claim 1, characterized in that: The number of the leaf springs (2) is three or more, and they are evenly distributed in a circular array between the upper cover plate (5) and the lower cover plate (11).

5. The lantern-shaped suspension spring structure according to claim 1, characterized in that: The included angle between adjacent leaf spring pieces (2) is 360° divided by the number of leaf spring pieces (2) provided.

6. The lantern-shaped suspension spring structure according to claim 1, characterized in that: The rolling thickness of the leaf spring (2) is in the range of 5-50 mm, and the bending arc is in the range of 5-45°. The rolling thickness and bending arc of the leaf spring (2) are determined according to the design requirements of the lantern-shaped suspension spring.

7. The lantern-shaped suspension spring structure according to claim 1, characterized in that: One side of the upper cover plate (5) and the lower cover plate (11) is respectively fixedly connected to a set of mounting connecting plates (10).

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