Hanging ring assembly of shock absorber and shock absorber
By setting chamfer and rounded structures along the inner wall end of the vibration damper suspension ring, the aluminum frame of the bushing is guided, which solves the aluminum chip flash problem when the aluminum frame is interfered into the suspension ring, and achieves smooth pressing and stable pressure output without lubricating oil.
Patent Information
- Application Number
- CN202421774248.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-25
AI Technical Summary
In the suspension ring assembly of the vibration damper, the bushing of the aluminum skeleton is prone to aluminum chip flashing problems when the suspension ring is interfered with. In severe cases, it may form a "blade" shape, resulting in safety hazards. Moreover, due to the difficulty of welding of aluminum, it is impossible to solve this problem by replacing the suspension ring material with aluminum.
A first chamfer is provided along the inner wall end of the suspension ring, and is connected to the inner wall of the suspension ring through the first round corner to guide the skeleton of the bushing to avoid scratching and shearing the skeleton by sharp corners, thereby eliminating the metal flare problem.
By guiding the chamfer and rounded corner structure of the skeleton, the aluminum chip flash problem is effectively avoided, no lubricating oil/grease is required, and it does not affect the pressure of the bushing. It is suitable for automatic wire assembly.
Smart Images
Figure CN222772584U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shock absorbers, in particular to a suspension ring assembly of a shock absorber and a shock absorber. Background Art
[0002] The lifting ring assembly of the shock absorber is used to connect the shock absorber with the suspension system. The lifting ring assembly includes a lifting ring and a bushing, the outer ring of the bushing is provided with a frame, and the bushing is integrally pressed into the lifting ring.
[0003] Traditionally, bushings have steel frames and lifting rings are also made of steel. However, as the demand for lightweighting in the automotive industry grows, bushings with aluminum frames are increasingly being used in suspension systems. The resulting problem is that due to the low hardness of aluminum, when the bushing is pressed into the lifting ring, aluminum chips and flash are likely to occur, and in severe cases, even "blade" shapes may form, which can easily cause safety accidents.
[0004] Since aluminum is difficult to weld, it is not possible to solve the above problem by simply changing the material of the lifting ring to aluminum. Currently, the industry usually solves the above problem by applying lubricating oil / grease to the bushing and lifting ring before assembly to reduce the aluminum chip flash problem by reducing friction.
[0005] However, actual use has found that applying lubricating oil / grease before assembly can only alleviate the above-mentioned problems to a certain extent, but cannot avoid aluminum chips and flash; in addition, lubricating oil / grease needs to be applied manually, and the amount of oil is unstable, which may cause unstable extrusion force. The extrusion force is the key performance of the bushing and needs to be strictly controlled.
[0006] 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 utility model, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content
[0007] In view of this, the utility model provides a suspension ring assembly and a shock absorber for a shock absorber, wherein a first chamfer is arranged on the inner wall end edge of the suspension ring, and the first chamfer is transitionally connected to the inner wall of the suspension ring through a first rounded corner, so that when the bushing is pressed into the suspension ring by interference fit, the first chamfer and the first rounded corner guide the skeleton to avoid scratching and shearing of the skeleton by sharp corners, thereby eliminating the problem of metal flash occurring during the bushing press-fitting process, without the need to apply lubricating oil / grease, and without affecting the pressing force of the bushing.
[0008] According to one aspect of the utility model, a suspension ring assembly of a shock absorber is provided, comprising a suspension ring made of a first metal, and a bushing with a skeleton made of a second metal disposed on an outer ring, wherein the hardness of the first metal is greater than the hardness of the second metal; wherein: a first chamfer is provided at the end edge of the inner wall of the suspension ring, and the first chamfer is transitionally connected to the inner wall of the suspension ring via a first fillet; as the bushing is interference-pressed into the suspension ring, at least the first chamfer and the first fillet guide the skeleton.
[0009] In some embodiments, the angle of the first chamfer is between 15° and 20°.
[0010] In some embodiments, the depth of the first chamfer is between 1.45 mm and 2.05 mm.
[0011] In some embodiments, both end faces of the suspension ring are provided with the first chamfer and the first rounded corner.
[0012] In some embodiments, a second chamfer is provided at the end edge of the outer wall of the skeleton, and the second chamfer is transitionally connected to the outer wall of the skeleton via a second rounded corner, and the angle of the second chamfer is smaller than the angle of the first chamfer; as the bushing is pressed into the hanging ring with interference, the second chamfer and the second rounded corner also guide the skeleton.
[0013] In some embodiments, the second chamfer and the second rounded corner are provided on both end surfaces of the skeleton.
[0014] In some embodiments, the inner wall of the hanging ring is provided with a blind hole and / or an annular groove.
[0015] In some embodiments, the blind hole and / or the annular groove provided on the inner wall of the hanging ring is connected to the inner wall of the hanging ring through a third fillet transition.
[0016] In some embodiments, the first metal is steel and the second metal is aluminum.
[0017] According to another aspect of the utility model, a shock absorber is provided, wherein the shock absorber is equipped with a lifting ring assembly as described in any of the above embodiments.
[0018] Compared with the prior art, the beneficial effects of the present invention include at least:
[0019] The utility model sets a first chamfer on the inner wall end edge of the lifting ring, and the first chamfer is transitionally connected to the inner wall of the lifting ring through a first rounded corner, so that when the bushing is pressed into the lifting ring through interference, the first chamfer and the first rounded corner guide the skeleton to avoid scratching and shearing of the skeleton by sharp corners, thereby eliminating the problem of metal flash appearing on the skeleton with lower hardness during the bushing press-fitting process, without the need to apply lubricating oil / grease, and without affecting the pressing force of the bushing.
[0020] By reasonably controlling the angle of the first chamfer and setting the first chamfer to be smaller, the shear force on the frame can be effectively reduced, making the press-fitting process of the bushing and the ring smooth, and fundamentally solving the problem of metal flash generated when the bushing is pressed into the ring with interference fit.
[0021] The assembly of the lifting ring assembly of the utility model does not require manual operation, does not require the application of lubricating oil / grease, and does not generate additional costs, and can be used for automatic line assembly. According to project verification, the structure of the lifting ring assembly and the pressing force of the bushing after interference fit fully meet the production requirements.
[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The drawings herein are incorporated into the specification and constitute a part of the specification, showing 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 for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0024] Figure 1 A schematic diagram showing the assembly structure of the lifting ring assembly in the embodiment of the utility model is shown;
[0025] Figure 2 A schematic diagram showing the structure of the lifting ring in the embodiment of the utility model is shown;
[0026] Figure 3 A schematic diagram of the chamfered structure of the lifting ring in the embodiment of the utility model is shown. DETAILED DESCRIPTION
[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Instead, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art.
[0028] The accompanying drawings are only schematic illustrations 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 thus their repeated description will be omitted.
[0029] The words "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 positional relationship indicated by the terms "axial", "radial" and the like is based on the orientation or positional 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 operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model. The term "plurality" means two or more, unless otherwise clearly and specifically defined. In addition, in the description of the present utility model, when it is said that a device is "connected" to another device, this includes not only the case of direct connection, but also the case of indirect connection through other elements.
[0030] It should be noted that, in the absence of conflict, the embodiments of the present utility model and features in different embodiments may be combined with each other.
[0031] Figure 1 The assembly structure of the lifting ring assembly in the embodiment of the utility model is shown in FIG. Figure 2 The structure of the lifting ring in the embodiment of the utility model is shown in FIG. Figure 3 The chamfer structure of the lifting ring in the embodiment of the utility model is shown; Figures 1 to 3 As shown, the lifting ring assembly for a shock absorber provided by the embodiment of the utility model comprises:
[0032] A suspension ring 10 made of a first metal, and a bushing 20 with a framework 22 made of a second metal sleeved on the outer ring, wherein the hardness of the first metal is greater than the hardness of the second metal; wherein:
[0033] The end edge of the inner wall of the lifting ring 10 is provided with a first chamfer 11, and the first chamfer 11 is transitionally connected to the inner wall of the lifting ring 10 via a first fillet 12;
[0034] As the bushing 20 is pressed into the lifting ring 10 by interference, at least the first chamfer 11 and the first rounded corner 12 guide the framework 22 .
[0035] The ring 10 can be made of steel, but not limited thereto; the bushing 20 includes a rubber inner core 23 and a frame 22, the frame 22 is interference-fittedly sleeved outside the rubber inner core 23 and is interference-fitted into the ring 10. The frame 22 can be made of aluminum, but not limited thereto.
[0036] The utility model sets a first chamfer 11 on the inner wall end edge of the hanging ring 10, and the first chamfer 11 and the inner wall of the hanging ring 10 are transitionally connected by a first rounded corner 12, so that when the bushing 20 is pressed into the hanging ring 10 with interference fit, the first chamfer 11 and the first rounded corner 12 guide the skeleton 22 to avoid scratching and shearing of the skeleton 22 by sharp corners, thereby eliminating the problem of metal flash appearing on the skeleton 22 with lower hardness during the press-fitting process of the bushing 20, without the need to apply lubricating oil / grease, and without affecting the pressing force of the bushing 20.
[0037] By reasonably controlling the angle of the first chamfer 11 and setting the first chamfer 11 to be smaller, the shear force on the skeleton 22 can be effectively reduced, making the press-fitting process of the bushing 20 and the ring 10 smooth, thereby fundamentally solving the problem of metal burrs generated when the bushing 20 is pressed into the ring 10 with interference fit.
[0038] The assembly of the lifting ring assembly of the utility model does not require manual operation, does not require the application of lubricating oil / grease, and does not generate additional costs, and can be used for automatic line assembly. According to project verification, the structure of the lifting ring assembly after interference fit and the pressing force of the bushing 20 fully meet the production requirements.
[0039] In some embodiments, the angle of the first chamfer 11 is between 15° and 20°. For example, the first chamfer 11 is set to 15°, 17°, 20°, etc. By setting the angle of the first chamfer 11 to be smaller, the shear force on the skeleton 22 is effectively reduced, so that the press-fitting process of the bushing 20 and the ring 10 is smooth, and the problem of metal flash generated when the bushing 20 is pressed into the ring 10 with interference fit is fundamentally solved.
[0040] In some embodiments, the depth S of the first chamfer 11 is between 1.45 mm and 2.05 mm. For example, the depth S of the first chamfer 11 is set to 1.45 mm, 1.75 mm, 2.05 mm, and so on.
[0041] In some embodiments, both end faces 10a and 10b of the lifting ring 10 are provided with a first chamfer 11 and a first rounded corner 12. In this way, the bushing 20 and the lifting ring 10 can be pressed together easily, and the bushing 20 can be pressed together smoothly and without scratches under the guidance of the first chamfer 11 and the first rounded corner 12 no matter which side of the lifting ring 10 the bushing 20 is installed from, thereby fundamentally solving the problem of metal flash generated when the bushing 20 is pressed into the lifting ring 10 with interference fit.
[0042] In some embodiments, a second chamfer is provided at the end edge of the outer wall of the skeleton 22, and the second chamfer is transitionally connected to the outer wall of the skeleton 22 via a second fillet (the second chamfer and the second fillet are not specifically indicated in the figure), and the angle of the second chamfer is smaller than the angle of the first chamfer 11; as the bushing 20 is pressed into the lifting ring 10 with interference fit, the second chamfer and the second fillet also guide the skeleton 22.
[0043] Based on the first chamfer 11 and the first rounded corner 12 provided at the end edge of the inner wall of the hanging ring 10, the second chamfer and the second rounded corner are also provided at the end edge of the outer wall of the skeleton 22. In this way, the smoothness of the press-fitting process of the bushing 20 and the hanging ring 10 is further enhanced through the coordination of chamfers and rounded corners, thereby eliminating the problem of metal burrs generated when the bushing 20 is interference pressed into the hanging ring 10.
[0044] The angle of the second chamfer is smaller than that of the first chamfer 11 , which can ensure that the frame 22 of the bushing 20 is smoothly pressed into the lifting ring 10 .
[0045] In some embodiments, the second chamfer and the second rounded corner are provided on both end surfaces of the skeleton 22. In this way, the press-fitting of the bushing 20 and the ring 10 can be further facilitated, and no matter which end of the bushing 20 is pressed into the ring 10, smooth and scratch-free press-fitting can be achieved, fundamentally solving the problem of metal flash generated when the bushing 20 is pressed into the ring 10 with interference fit.
[0046] In some embodiments, the inner wall of the lifting ring 10 is provided with blind holes and / or annular grooves. The blind holes, annular grooves and other slot structures can collect metal debris that may be generated during the press-fitting process of the frame 22, and prevent the metal debris from running to the end surface of the frame 22 / lifting ring 10 and requiring secondary rework and cleaning.
[0047] There may be a plurality of blind holes, annular grooves and other slot structures, which are distributed on the inner wall of the hanging ring 10 at appropriate intervals.
[0048] In some embodiments, the blind hole and / or annular groove provided on the inner wall of the lifting ring 10 is connected to the inner wall of the lifting ring 10 through a third fillet transition. In this way, the smoothness of the press-fitting between the bushing 20 and the lifting ring 10 is avoided to be affected by the provision of the blind hole, annular groove and other slot structures.
[0049] The embodiment of the utility model further provides a vibration absorber, which is equipped with a suspension ring assembly as described in any of the above embodiments, and can achieve the following beneficial effects:
[0050] By setting the first chamfer 11 on the inner wall end edge of the hanging ring 10, and transitionally connecting the first chamfer 11 and the inner wall of the hanging ring 10 through the first rounded corner 12, it is achieved that when the bushing 20 is interference pressed into the hanging ring 10, the first chamfer 11 and the first rounded corner 12 guide the skeleton 22 to avoid scratching and shearing of the skeleton 22 by sharp corners, thereby eliminating the problem of metal flash appearing on the skeleton 22 with lower hardness during the press-fitting process of the bushing 20, without the need to apply lubricating oil / grease, and without affecting the pressing force of the bushing 20.
[0051] By reasonably controlling the angle of the first chamfer 11 and setting the first chamfer 11 to be smaller, the shear force on the skeleton 22 can be effectively reduced, making the press-fitting process of the bushing 20 and the ring 10 smooth, thereby fundamentally solving the problem of metal burrs generated when the bushing 20 is pressed into the ring 10 with interference fit.
[0052] The assembly of the lifting ring assembly does not require manual operation, lubricating oil / grease, and no additional costs are incurred, and it can be used for automatic line assembly. According to project verification, the structure of the lifting ring assembly after interference fit and the pressing force of the bushing 20 fully meet the production requirements, thereby ensuring the quality and effect of the shock absorber.
[0053] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.
Claims
1. A suspension ring assembly for a shock absorber, comprising a suspension ring made of a first metal, and a bushing with a frame made of a second metal sleeved on the outer ring, wherein the hardness of the first metal is greater than the hardness of the second metal; characterized in that: The end edge of the inner wall of the lifting ring is provided with a first chamfer, and the first chamfer is connected to the inner wall of the lifting ring through a first rounded transition; As the bushing is pressed into the lifting ring with interference fit, at least the first chamfer and the first rounded corner guide the skeleton.
2. The lifting ring assembly according to claim 1, characterized in that: The angle of the first chamfer is between 15° and 20°.
3. The lifting ring assembly according to claim 1, characterized in that: The depth of the first chamfer is between 1.45 mm and 2.05 mm.
4. The lifting ring assembly according to claim 1, characterized in that: The first chamfer and the first rounded corner are arranged on both end faces of the hanging ring.
5. The lifting ring assembly according to claim 1, characterized in that: A second chamfer is provided at the end edge of the outer wall of the frame, the second chamfer is transitionally connected to the outer wall of the frame via a second rounded corner, and the angle of the second chamfer is smaller than that of the first chamfer; As the bushing is pressed into the lifting ring through interference, the second chamfer and the second rounded corner guide the skeleton.
6. The lifting ring assembly according to claim 5, characterized in that: The second chamfer and the second rounded corner are both arranged on the two end surfaces of the skeleton.
7. The lifting ring assembly according to claim 1, characterized in that: The inner wall of the lifting ring is provided with a blind hole and / or an annular groove.
8. The lifting ring assembly according to claim 7, characterized in that: The blind hole and / or the annular groove arranged on the inner wall of the lifting ring is connected to the inner wall of the lifting ring through a third fillet transition.
9. The lifting ring assembly according to any one of claims 1 to 8, characterized in that: The first metal is steel and the second metal is aluminum.
10. A shock absorber, characterized in that: The vibration absorber is equipped with a lifting ring assembly as described in any one of claims 1-9.