Rubber interference side pressure type engine suspension
By using a rubber main spring and bracket with interference fit in the automobile engine suspension and providing raised ribs on the bracket, the problem of loose metal fitting is solved, achieving better stability and improved NVH performance.
Patent Information
- Application Number
- CN202423011724.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In existing automobile engine mounts, the interference fit between metal and metal is prone to wear and loosening, affecting NVH performance.
The main spring made of rubber has an interference fit with the bracket, and raised ribs are provided on the bracket to enhance the tightness of the fit, and the high friction characteristics of rubber are used to increase the pressing force.
It improves the stability of engine mounts, reduces the possibility of loosening, and improves NVH performance and customer satisfaction.
Smart Images

Figure CN223469652U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of automobile engine suspension, especially relates to a rubber interference side pressure type engine suspension. BACKGROUND
[0002] The automobile engine suspension is more and more widely applied in the field of automobile suspension, and its main function is to provide stable support for the engine, reduce the vibration generated during the operation of the engine to the vehicle body, improve the ride comfort and reduce the noise in the vehicle.
[0003] In the present field, the assembly between the main spring and the support in the engine suspension assembly process of the automobile is generally that the main spring is laterally pressed into the support, and the main spring base is generally in interference fit with the support, and the main spring base and the support are generally metal materials, and the interference fit between the metal and the metal will cause certain wear after the fatigue test of the engine suspension is completed or after the completion of a certain life, and there may be a risk of loose fit, and if the main spring and the support are loose on the whole vehicle, the NVH performance of the whole vehicle may be affected, such as vibration aggravation, noise increase and impact noise. UTILITY MODEL CONTENTS
[0004] The utility model provides a kind of rubber interference side pressure type engine suspension in view of the problems in the prior art, and the following technical scheme is proposed:
[0005] The utility model provides a kind of rubber interference side pressure type engine suspension, comprising:
[0006] Support, the assembly hole for installing main spring is set up on the support, and the side wall of the assembly hole is symmetrically provided with a plurality of convex ribs arranged at intervals;
[0007] Main spring, the main spring includes rubber part, the rubber part includes the cooperation part one corresponding with the position of convex rib, and the cooperation part one of the main spring is interference fit with the convex rib of support.
[0008] As the preferred technical scheme, the cross-sectional shape of the convex rib is trapezoidal.
[0009] As the preferred technical scheme, the assembly hole includes symmetrically arranged butt joint groove one, and the convex rib is arranged at the side wall position of butt joint groove one.
[0010] As the preferred technical scheme, the main spring further includes base, the base includes embedded part provided at top end, and the cooperation part one of the rubber part is wrapped outside the embedded part.
[0011] As the preferred technical scheme, the base further includes extension part protruding from the side wall of seat body, and the support is provided with butt joint groove two matched with the extension part at the position corresponding to the extension part.
[0012] As the preferred technical solution of the above, the fitting part two is in interference fit with the inner side wall of the support corresponding to the position.
[0013] The utility model discloses the beneficial effects are:
[0014] The utility model discloses a spring assembly, including support 10 and main spring 20, support 10 on the setting of the rubber part of main spring is provided with the interference fit point of support, utilize the high friction characteristic of rubber material, increase the pressure in and pressure out of main spring and support, and through the convex rib that sets up on support makes the cooperation of two more closely, reduces the possibility of loosening, makes the product have good stability, improves customer satisfaction. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The utility model discloses the beneficial effects are:
[0016] Figure 2 The utility model discloses the beneficial effects are:
[0017] Figure 3 The utility model discloses the beneficial effects are: Figure 2 The utility model discloses the beneficial effects are:
[0018] Figure 4 The utility model discloses the beneficial effects are:
[0019] Figure 5 The utility model discloses the beneficial effects are:
[0020] Figure 6 The utility model discloses the beneficial effects are:
[0021] Reference signs: 10, support, 11, assembly hole, 12, butt joint groove one, 13, convex rib, 14, butt joint groove two, 20, main spring, 21, fitting part one, 22, base, 23, fitting part two, 31, extension, 32, embedded part. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the utility model technical scheme will be described clearly and completely below with the embodiment.
[0023] Embodiment
[0024] As Figure 1 , Figure 2 As Figure 1 The utility model discloses the beneficial effects are: Figure 2 The utility model discloses the beneficial effects are:
[0025] The utility model discloses a spring assembly, including support 10 and main spring 20, support 10 on the setting of the rubber part of main spring is provided with the interference fit point of support, utilize the high friction characteristic of rubber material, increase the pressure in and pressure out of main spring and support, and through the convex rib that sets up on support makes the cooperation of two more closely, reduces the possibility of loosening, makes the product have good stability, improves customer satisfaction.
[0026] The assembly hole 11 is shaped to match the main spring 20, and the main spring 20 is press-fitted into the assembly hole 11. The bracket 10 is made of cast aluminum.
[0027] As shown in Figure 2 , Figure 3 , Figure 4 , Figure 2 , a schematic view of the bracket in the embodiment is shown; Figure 3 , an enlarged schematic view of the structure at A in Figure 2 is shown; Figure 4 , a schematic view of the main spring in the embodiment is shown;
[0028] The assembly hole 11 includes a symmetrical butt joint groove 12, and a plurality of protruding ribs 13 are arranged on the side wall of the butt joint groove 12 at intervals;
[0029] The main spring 20 includes a base 22 and a rubber part, and the rubber part is provided with a matching part 21 matched with the butt joint groove 12, and the matching part 21 on the rubber part is in interference fit with the protruding ribs 13 of the bracket 10.
[0030] The base 22 is made of metal, and the rubber part is made of rubber; as shown in Figure 3 , the cross section of the protruding rib 13 is trapezoidal and the number of each side is three; the matching part 21 on the rubber part of the main spring 20 is in interference fit with the protruding rib 13 of the bracket 10.
[0031] By setting the interference fit point of the main spring 20 on the rubber part and the bracket 10, the high friction characteristics of the rubber material are utilized, the press-in and press-out force of the main spring 20 and the bracket 10 is increased, and the cooperation between the two is made more closely through the protruding rib 13 arranged on the bracket 10, so that the product has good stability and improves customer satisfaction.
[0032] As shown in Figure 5 , Figure 6 , Figure 5 , a schematic view of the base of the main spring in the embodiment is shown; Figure 6 , a cross-sectional schematic view of the main spring in the embodiment is shown;
[0033] The base 22 includes an embedded part 32 arranged at the top end and an extension part 31 protruding from the side wall of the seat body, wherein the matching part 21 of the rubber part is wrapped outside the embedded part 32, and the bracket 10 is provided with a butt joint groove 14 matched with the extension part 31 at a position corresponding to the extension part 31, and the extension part 31 and the butt joint groove 14 are positionally corresponding and cooperated with each other.
[0034] Different from the traditional main spring 20, the matching part 21 of the rubber part in the device is wrapped outside the embedded part 32, and the base 22 plays a supporting role.
[0035] As Figure 4 shown, Figure 6 shown, Figure 4 A schematic diagram of the main spring in the embodiment is shown. Figure 6 A schematic diagram of the main spring in the embodiment is shown.
[0036] The top end of the rubber part is also provided with a matching part two 23, which is in interference fit with the inner side wall of the support 10 corresponding to its position.
[0037] The setting of multiple matching surfaces increases the stability of the cooperation of the main spring 20 and the support 10.
[0038] Working principle: the device increases the press-in and press-out force of the main spring 20 and the support 10 by setting the interference fit point of the rubber part of the main spring 20 with the support 10, using the high friction characteristics of the rubber material, and makes the cooperation of the two more closely by the raised ribs 13 provided on the support 10, so that the product has good stability, and improves customer satisfaction.
[0039] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them.
Claims
1. A rubber interference side press engine mount, characterized by, The application relates to a support (10) provided with an assembly hole (11) for installing a main spring (20), wherein a plurality of convex ribs (13) are symmetrically arranged on the side wall of the assembly hole (11). The main spring (20) comprises a rubber part, and the rubber part comprises a first matching part (21) corresponding to the position of the convex rib (13); and the first matching part (21) of the main spring (20) is in interference fit with the convex rib (13) of the support (10). The cross section of the convex rib (13) is in the shape of a trapezoid.
2. A rubber interference side press engine mount as set forth in claim 1 wherein, The assembly hole (11) comprises symmetrically-arranged butt grooves (12), and the convex rib (13) is arranged at the position of the side wall of the butt groove (12).
3. A rubber interference side press engine mount as set forth in claim 1 wherein, The main spring (20) further comprises a base (22), and the base (22) comprises an embedded part (32) arranged at the top end; and the first matching part (21) of the rubber part is wrapped outside the embedded part (32).
4. A rubber interference side press engine mount as set forth in claim 1 wherein, The base (22) further comprises an extension part (31) protruding from the side wall of the base body, and the support (10) is provided with a butt groove (14) corresponding to the position of the extension part (31) and matched with the butt groove (14).
5. A rubber interference side press engine mount as set forth in claim 4 wherein, The top of the rubber part is further provided with a second matching part (23), and the second matching part (23) is in interference fit with the inner side wall of the support (10) corresponding to the position of the second matching part (23).
6. A rubber interference side press engine mount as set forth in claim 1 wherein,