Spring cushion and suspension spring assembly

Abstract

The utility model relates to the technical field of automobile suspensions, and provides a spring cushion and a suspension spring assembly. The spring cushion is provided with a containing groove for assembling an end ring of the suspension spring, the containing groove is provided with a first supporting part and a second supporting part, the first supporting part is used for fixedly contacting the end ring of the suspension spring, the second supporting part is used for movably contacting the end ring of the suspension spring, and the thickness of the second supporting part is larger than that of the first supporting part. The tail end of the second supporting part is provided with a tongue part protruding away from the suspension spring. According to the spring cushion, due to the design that the thickness of the second supporting part which is in movable contact with the end ring of the suspension spring is larger than that of the first supporting part which is in fixed contact with the end ring of the suspension spring, the vibration reduction effect of the second supporting part is effectively enhanced, and the vibration reduction and noise reduction requirements under the condition that the amplitude of a suspension is large are met; by means of the protruding tongue part arranged at the tail end of the second supporting part, contact deformation of the tongue part and a matching part under the condition that the amplitude of the suspension is large is achieved, vibration energy is absorbed, and the vibration reduction and noise reduction performance is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile suspension, in particular to a spring pad and a suspension spring assembly. Background Art

[0002] Spring washers are essential components of automotive suspension systems, typically made of rubber or polyurethane. They are assembled with the end coils of the suspension springs to form a suspension spring assembly that is integrated into the vehicle's shock absorber or control arm. They absorb vibration and noise generated by the suspension springs during operation and also stabilize the suspension springs.

[0003] Due to the helical nature of the suspension spring, the contact between the spring washer and the end coil of the suspension spring includes permanent and movable contact areas. When the suspension amplitude is small, the suspension spring and spring washer utilize the permanent contact area to reduce vibration, effectively isolating vibration and noise transmitted from the wheel to the vehicle body. When the suspension amplitude is large, the suspension spring and spring washer also utilize the movable contact area to reduce vibration. However, current spring washers lack a design that enhances the vibration reduction effect at the movable contact area, resulting in the spring washer failing to meet vibration and noise reduction requirements when the suspension amplitude is large. With the increasing popularity of new energy vehicles, vehicle weight has increased significantly, and users' demands for comfort are increasing, making vibration and noise issues more prominent when the suspension amplitude is large.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[0005] In view of this, the present invention provides a spring washer and a suspension spring assembly. By designing that the thickness of the second support part for the end ring of the suspension spring to movably contact is greater than the thickness of the first support part for the end ring of the suspension spring to fixedly contact, the vibration reduction effect of the second support part is effectively enhanced, thereby meeting the vibration reduction and noise reduction requirements when the suspension amplitude is large.

[0006] One aspect of the present invention provides a spring washer, which is provided with a receiving groove for assembling the end ring of a suspension spring, the receiving groove having a first support portion for fixed contact of the end ring of the suspension spring and a second support portion for movably contacting the end ring of the suspension spring, wherein: the thickness of the second support portion is greater than the thickness of the first support portion, and the end of the second support portion is provided with a tongue portion protruding away from the suspension spring.

[0007] In some embodiments, the thickness of the second support portion is more than three times the thickness of the first support portion.

[0008] In some embodiments, the thickness of the first support portion increases gradually from the first support portion to the second support portion.

[0009] In some embodiments, the tip of the tongue is formed into a curved surface.

[0010] In some embodiments, the end coil of the suspension spring is interference-pressed into the first support portion, and / or the end coil of the suspension spring is fixed to the first support portion by a fastener.

[0011] In some embodiments, the height of the outer retaining wall of the accommodating groove is higher than the height of the inner retaining wall.

[0012] In some embodiments, the spring pad is formed into a C-shaped structure, the first support portion is formed into a semicircular groove starting from the first end of the spring pad, and the second support portion is connected to the first support portion and formed at the second end of the spring pad.

[0013] In some embodiments, a baffle is provided at the first end of the spring washer.

[0014] In some embodiments, a plurality of mounting feet are provided on the back side of the receiving groove.

[0015] Another aspect of the present invention provides a suspension spring assembly, comprising a suspension spring and a spring washer as described in any of the above embodiments, wherein the end ring of the suspension spring is assembled with the accommodating groove of the spring washer; in a first compression state of the suspension spring assembly, the suspension spring squeezes the first support portion; in a second compression state of the suspension spring assembly, the suspension spring squeezes the first support portion and the second support portion, and the tongue portion of the second support portion is deformed; wherein, the suspension amplitude corresponding to the second compression state is greater than the suspension amplitude corresponding to the first compression state.

[0016] Compared with the prior art, the beneficial effects of the present invention include at least:

[0017] The spring pad of the present invention is designed so that the thickness of the second support part with which the end ring of the suspension spring is in movably contacted is greater than the thickness of the first support part with which the end ring of the suspension spring is in fixed contact. This effectively enhances the vibration reduction effect of the second support part, so that the spring pad can better absorb vibration when the suspension spring is subjected to a large impact, thereby meeting the vibration reduction and noise reduction requirements under conditions of large suspension amplitude.

[0018] The spring pad of the present invention also uses the protruding tongue portion provided at the end of the second support portion to achieve contact and deformation between the tongue portion and the mating component and absorb vibration energy when the suspension amplitude is large, thereby further improving the vibration reduction and noise reduction performance of the spring pad.

[0019] Therefore, the spring pad of the present invention forms an additional vibration-damping structure at a specific position of the spring pad by increasing the thickness of the second support portion and designing the protruding tongue portion, thereby effectively enhancing the vibration-damping and noise-reduction performance of the spring pad, meeting the vibration-damping and noise-reduction requirements under various driving conditions, and improving driving comfort.

[0020] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present invention, and together with the specification, are used to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0022] Figure 1 A schematic structural diagram showing the assembly of a spring washer and a suspension spring in an embodiment of the present invention is shown;

[0023] Figure 2 A schematic diagram of the top view of the spring pad in an embodiment of the present utility model is shown;

[0024] Figure 3 A schematic structural diagram showing the assembly of the first supporting portion of the spring pad and the suspension spring in an embodiment of the present utility model;

[0025] Figure 4 A schematic structural diagram showing the assembly of the second supporting portion of the spring pad and the suspension spring in an embodiment of the present utility model is shown. DETAILED DESCRIPTION

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make this disclosure more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art.

[0027] The accompanying drawings are only schematic diagrams of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar structures, and their repeated description will be omitted.

[0028] The terms "first", "second" and similar words used in the specific description do not indicate any order, quantity or importance, but are only used to distinguish different components. The orientation or position relationship indicated by the terms "upper", "lower", "front", "back" and the like is based on the orientation or position relationship shown in the accompanying drawings. It is only for the convenience of description and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The term "plurality" means two or more, unless otherwise clearly and specifically defined. In addition, in the description of the present invention, when it is said that a device is "connected" to another device, this includes not only direct connections, but also indirect connections through other elements.

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in different embodiments may be combined with each other.

[0030] Figure 1 The structure of the spring pad and the suspension spring is shown in figure. Figure 2 The top view structure of the spring pad is shown. Figure 3 The diagram shows the structure of the first support portion of the spring pad and the suspension spring. Figure 4 The diagram shows the structure in which the second supporting portion of the spring pad is assembled with the suspension spring.

[0031] Combine Figures 1 to 4 As shown, the spring pad 10 provided by the embodiment of the present invention is provided with a receiving groove 11 for assembling the end ring 22 of the suspension spring 20. The receiving groove 11 has a first support portion 11a for fixed contact with the end ring 22 of the suspension spring 20 and a second support portion 11b for movable contact with the end ring 22 of the suspension spring 20, wherein:

[0032] The thickness T2 of the second support portion 11 b is greater than the thickness T1 of the first support portion 11 a , and a tongue portion 111 protruding away from the suspension spring 20 is provided at the distal end of the second support portion 11 b .

[0033] The spring washer 10, made of rubber or polyurethane, exhibits excellent damping properties, effectively isolating vibration and noise transmitted from the wheels to the vehicle body during driving. The end rings 22 at each end of the suspension spring 20 can be assembled with corresponding spring washers 10 to effectively isolate vibration and noise transmitted from the wheels to the vehicle body during driving.

[0034] The spring washer 10 of the present invention is designed so that the thickness T2 of the second support portion 11b for the end ring 22 of the suspension spring 20 to movably contact is greater than the thickness T1 of the first support portion 11a for the end ring 22 of the suspension spring 20 to fixedly contact. This effectively enhances the vibration reduction effect of the second support portion 11b, so that the spring washer 10 can better absorb vibration when the suspension spring 20 is subjected to a large impact, thereby meeting the vibration reduction and noise reduction requirements under conditions of large suspension amplitude.

[0035] Specifically, during driving, under most operating conditions, the suspension spring 20 is subjected to high-frequency, small-amplitude impacts. In these situations, the first support portion 11a of the spring washer 10 absorbs and cushions the vibrations of the suspension spring 20, effectively preventing vibration and noise from being transmitted to the vehicle body. However, during driving conditions such as when the vehicle is crossing a ditch or a bump, the suspension spring 20 is subjected to large-amplitude impacts. In these situations, the suspension spring 20 not only contacts the first support portion 11a but also rapidly compresses the second support portion 11b. Due to the thicker thickness T2 of the second support portion 11b, this creates an additional vibration-damping structure. Therefore, even under conditions of large suspension amplitude, the spring washer 10 can absorb and cushion the vibrations of the suspension spring 20, effectively preventing vibration and noise from being transmitted to the vehicle body.

[0036] The spring washer 10 of the present invention also uses the protruding tongue 111 set at the end of the second support part 11b to achieve contact and deformation between the tongue 111 and the mating parts (such as related parts of the shock absorber, related parts of the suspension, etc.) to absorb vibration energy when the suspension amplitude is large, thereby further improving the vibration reduction and noise reduction performance of the spring washer 10.

[0037] Therefore, the spring pad 10 of the present invention forms an additional vibration-damping structure at a specific position of the spring pad 10 by increasing the thickness of the second support portion 11b and designing the protruding tongue 111, thereby effectively enhancing the vibration-damping and noise-reduction performance of the spring pad 10, meeting the vibration-damping and noise-reduction requirements under various driving conditions, and improving driving comfort.

[0038] In some embodiments, the thickness T2 of the second support portion 11b is at least three times the thickness T1 of the first support portion 11a. This ensures that even when the suspension amplitude is large, the second support portion 11b absorbs and buffers the vibration of the suspension spring 20, effectively preventing vibration and noise from being transmitted to the vehicle body.

[0039] In some embodiments, the thickness of the first support portion 11a to the second support portion 11b increases gradually, so as to meet various working conditions with different suspension amplitudes.

[0040] In some embodiments, the tip of the tongue 111 is formed into an arc surface. The arc surface allows the tongue 111 to stably, buffer, and uniformly contact the mating component to deform when the suspension amplitude is large, thereby improving the vibration reduction and noise reduction performance of the spring pad 10.

[0041] In some embodiments, the end coil 22 of the suspension spring 20 is interference-pressed into the first support portion 11a, and / or the end coil 22 of the suspension spring 20 is secured to the first support portion 11a via fasteners. The interference-pressing and / or fastening methods maintain fixed contact between the end coil 22 of the suspension spring 20 and the first support portion 11a.

[0042] Between the end ring 22 of the suspension spring 20 and the second support portion 11b, the end ring 22 is pressed into the second support portion 11b when the suspension spring 20 is greatly squeezed, and when the suspension spring 20 returns to its natural state, the end ring 22 is separated from the second support portion 11b.

[0043] In some embodiments, the height of the outer retaining wall of the accommodating groove 11 is higher than the height of the inner retaining wall, so as to effectively prevent the suspension spring 20 from falling out of the accommodating groove 11.

[0044] In some embodiments, the spring pad 10 is formed into a C-shaped structure, the first support portion 11a is formed as a semicircular groove from the first end 101 of the spring pad 10, and the second support portion 11b is connected to the first support portion 11a and formed at the second end 102 of the spring pad 10.

[0045] The first support portion 11a is formed as a semicircular groove that adapts to the helical characteristics of the suspension spring 20 and provides fixed contact for the end coil 22 of the suspension spring 20. The second support portion 11b is connected to the first support portion 11a, supporting the suspension spring 20 and absorbing vibration and noise when the suspension amplitude is large.

[0046] In some embodiments, a baffle 112 is provided at the first end 101 of the spring washer 10. The baffle 112 limits the end of the end ring 22 of the suspension spring 20 to prevent the suspension spring 20 from rotating and displacing.

[0047] In some embodiments, a plurality of mounting legs 12 are provided on the back of the receiving groove 11. The mounting legs 12 facilitate the installation of the spring pad 10 and the shock absorber, control arm or related components of the vehicle.

[0048] The present invention also provides a suspension spring assembly. Figures 1 to 4 As shown, the suspension spring assembly includes a suspension spring 20 and a spring washer 10, and the end ring 22 of the suspension spring 20 is assembled with the accommodating groove 11 of the spring washer 10; in the first compression state of the suspension spring assembly, the suspension spring 20 squeezes the first support portion 11a; in the second compression state of the suspension spring 20 assembly, the suspension spring 20 squeezes the first support portion 11a and the second support portion 11b, and the tongue portion 111 of the second support portion 11b is deformed; wherein, the suspension amplitude corresponding to the second compression state is greater than the suspension amplitude corresponding to the first compression state.

[0049] During driving, when the suspension spring 20 is subjected to a small-amplitude impact, the first support portion 11a of the spring washer 10 absorbs and cushions the vibration of the suspension spring 20, effectively preventing vibration and noise from being transmitted to the vehicle body. When the suspension spring 20 is subjected to a large-amplitude impact, the suspension spring 20 not only contacts the first support portion 11a but also rapidly compresses the second support portion 11b. Due to the thicker thickness T2 of the second support portion 11b, an additional vibration-damping structure is formed. Therefore, even with large suspension amplitudes, the spring washer 10 can absorb and cushion the vibration of the suspension spring 20, effectively preventing vibration and noise from being transmitted to the vehicle body.

[0050] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A spring pad, provided with a receiving groove for assembling an end ring of a suspension spring, wherein the receiving groove has a first supporting portion for fixed contact of the end ring of the suspension spring and a second supporting portion for movable contact of the end ring of the suspension spring, characterized in that: The thickness of the second supporting portion is greater than that of the first supporting portion, and a tongue portion protruding away from the suspension spring is disposed at a distal end of the second supporting portion.

2. The spring washer according to claim 1, characterized in that The thickness of the second support portion is more than three times the thickness of the first support portion.

3. The spring washer according to claim 1, characterized in that: The thickness of the first supporting portion increases gradually from the second supporting portion.

4. The spring washer according to claim 1, characterized in that The tip of the tongue is formed into a curved surface.

5. The spring washer according to claim 1, characterized in that: The end ring of the suspension spring is interference pressed into the first support portion, and / or the end ring of the suspension spring is fixed to the first support portion by a fastener.

6. The spring washer according to claim 1, characterized in that The height of the outer ring retaining wall of the accommodating groove is higher than the height of the inner ring retaining wall.

7. The spring washer according to claim 1, characterized in that The spring pad is formed into a C-shaped structure, the first support portion is formed into a semicircular groove starting from the first end of the spring pad, and the second support portion is connected to the first support portion and formed at the second end of the spring pad.

8. The spring washer according to claim 7, characterized in that A baffle is provided at the first end of the spring pad.

9. The spring washer according to claim 1, characterized in that: A plurality of mounting legs are arranged on the back side of the accommodating groove.

10. A suspension spring assembly, characterized in that: It comprises a suspension spring and a spring washer as claimed in any one of claims 1 to 9, wherein the end ring of the suspension spring is assembled with the receiving groove of the spring washer; In a first compressed state of the suspension spring assembly, the suspension spring presses the first support portion; In a second compressed state of the suspension spring assembly, the suspension spring compresses the first support portion and the second support portion, and the tongue portion of the second support portion is deformed; The suspension amplitude corresponding to the second compression state is greater than the suspension amplitude corresponding to the first compression state.

Images