CN211820108U

CN211820108U - Flange assembly

Info

Publication number: CN211820108U
Application number: CN202020040291.8U
Authority: CN
Inventors: 唐润秋; 时辰; 孙广瑞; 杨向东
Original assignee: Vitesco Automotive Wuhu Co Ltd
Current assignee: Vitesco Automotive Wuhu Co Ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-10-30
Anticipated expiration: 2030-01-09

Abstract

The utility model provides a flange assembly for install and support the bearing assembly by the pump casing in, the pump casing has first casing part and second casing part, the flange assembly includes flange component and at least two elasticity shock attenuation elements, the flange component includes the flange body that has central through-hole and is used for receiving the sleeve portion of bearing assembly, the flange body has the first installation face that will joint with first casing part and the second installation face opposite with first installation face, the sleeve portion extends perpendicularly outwards around this central through-hole from first installation face, form the shoulder that is suitable for receiving one of them elasticity shock attenuation element in the crossing of sleeve portion and first installation face; the flange member also has an annular rib extending perpendicularly outwardly from the first mounting surface, and another resilient shock-absorbing member is disposed between the annular rib and the first housing portion. Through the flange assembly, the flange assembly can be matched with a shell of a pump to form a damping configuration, so that the stable operation of a pump bearing is guaranteed, and the bearing cannot bear larger vibration load.

Description

Flange assembly

Technical Field

The utility model relates to an automobile parts technical field especially relates to an use flange subassembly in the initiative scavenging pump of car.

Background

Active canister purge systems provided with an active purge pump that can forcibly desorb fuel vapor trapped in a canister to an intake system of an engine in the event that the engine has a low manifold vacuum are often used in vehicles having small displacement engines with insufficient negative pressure and hybrid vehicles.

Flange assemblies are important components for supporting bearings in active purge pumps, and in the prior art, the flanges are typically secured using bolts or by an interference fit. However, the flange thus assembled vibrates largely, which in turn causes the bearings supported thereby to vibrate largely, amplifying externally radiated noise, and exerting a large influence on NVH (noise, vibration, and harshness) of the vehicle.

Disclosure of Invention

In order to overcome the above problems, the utility model provides a flange assembly, wherein the structural design of flange can cooperate with elasticity damping element to form the shock attenuation configuration with the casing cooperation of pump, thereby ensured pump bearing's even running, make its bearing assembly that supports can not bear great vibration load.

Accordingly, the present invention provides a flange assembly for mounting within a pump housing to support a bearing assembly, the pump housing having a first housing part and a second housing part, wherein the flange assembly comprises a flange member and at least two resilient suspension elements, and the flange member comprises a flange body having a central through-hole and a sleeve portion for receiving the bearing assembly, the flange body having a first mounting face to be engaged with the first housing part and a second mounting face opposite the first mounting face, wherein the sleeve portion extends perpendicularly outwardly from the first mounting face around the central through-hole, a shoulder portion adapted to receive one of the at least two resilient suspension elements being formed at the intersection of the sleeve portion and the first mounting face; wherein the flange member further has an annular rib extending perpendicularly outwardly from the first mounting surface, another of the at least two resilient suspension elements being disposed between the annular rib and the first housing portion. Here, by providing the annular bead on the flange member, it is possible to provide at least two elastic damping elements between the flange member and the first housing portion, thereby improving the rigidity of the flange, significantly reducing the amount of vibration of the flange member, and attenuating radiation noise.

According to a preferred embodiment of the present invention, the annular bead has a root end formed integrally with the flange body and a tip end opposite to the root end, the tip end being configured to have an inclined surface inclined toward the sleeve portion and facing the sleeve portion, the other elastic damping member being provided between the inclined surface and the first housing portion. The provision of the annular bead with such an inclined surface enables the resilient shock-absorbing element disposed between the inclined surface and the first housing part to provide a bearing force to the flange member both in the radial direction and in the axial direction, the bearing force provided in the axial direction being able to prevent stress relaxation of the bearing force to the flange member, while the bearing force provided in the radial direction being able to better maintain the alignment of the bearing with, for example, the blade assembly.

In a preferred embodiment of the present invention, the annular rib is disposed near the outer periphery of the flange body.

In one aspect of the present invention, in order to provide better support for the flange member and thus the bearing assembly, the included angle between the inclined surface and the central axis of the central through hole is between 10 ° and 45 °, preferably between 30 ° and 45 °.

In one aspect of the present invention, one of the elastic damping members is provided between the sleeve portion and the first housing portion.

In a preferred embodiment of the present invention, the at least two elastic damping elements are two elastic damping elements. The elastic damping element is, for example, an annular elastic member, which may be made of, for example, a rubber material. However, it should be understood that other suitable materials are also contemplated as falling within the scope of the present application.

In one aspect of the present invention, the first housing portion and the second housing portion are connected together by a threaded fastener, and a rubber seal ring is further disposed between the first housing portion and the second housing portion. The sealing performance is guaranteed, and meanwhile vibration and radiation noise of the flange can be further weakened.

In one aspect of the invention, the second mounting surface is to engage the second housing portion to hold the flange assembly in place when the first and second housing portions are coupled together by the threaded fastener.

Drawings

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:

FIG. 1 is a partial cross-sectional view of a flange assembly according to a preferred embodiment of the present invention installed within a pump housing;

fig. 2 is a schematic structural view of a flange member in a flange assembly according to the present invention; and

fig. 3 is a cross-sectional view of the flange member shown in fig. 2.

Detailed Description

A flange assembly according to an implementation of the present invention will be described below by way of example with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention to those skilled in the art. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. Furthermore, it is to be understood that the invention is not to be limited to the specific embodiments described. Rather, any combination of the following features and elements, whether related to different embodiments or not, is contemplated to implement the present invention.

Fig. 1 shows a partial cross-sectional view of a flange assembly according to a preferred embodiment of the present invention installed in a pump housing 1. As can be seen from the figures, the pump housing 1 has a first housing part 11 and a second housing part 12. In this embodiment, the flange assembly comprises a flange member 3 and two resilient shock absorbing elements, a first resilient shock absorbing element 4a and a second resilient shock absorbing element 4 b. Referring to fig. 2 and 3, the flange member 3 includes a flange body 30 having a central through hole 31 and a sleeve portion 32 extending perpendicularly outwardly from the flange body 30, specifically, parallel to a central axis L of the central through hole 31, and for receiving the bearing assembly 2. With further reference to fig. 3, the flange body 30 has a first mounting surface 3a and a second mounting surface 3 b. In the assembled state shown in fig. 1, the first mounting surface 3a is joined to the first housing portion 11, for example, a lower end surface of the first housing portion 11, and the second mounting surface 3b is joined to the first housing portion 12, for example, an upper end surface of the second housing portion 12.

As can be seen in the figures, the sleeve portion 32 intersects the first mounting face 3a of the flange body 30 at right angles, i.e. at their intersection, a shoulder 33 is formed which is adapted to receive the first resilient shock-absorbing element 4 a. In the assembled state, the first elastic damping element 4a is located between the flange body 30 and the first housing part 11, so that the flange member 3 forms a damping arrangement with the first elastic damping element 4a and the first housing part 11, the rigidity of the flange is improved, the vibration amount of the flange member is reduced, and the radiation noise is attenuated.

Advantageously, the flange member 3 also has an annular rib 5 extending perpendicularly outwardly from the first mounting surface 3 a. For example, the annular bead 5 may be provided near the outer periphery of the flange body 30. Specifically, the extending direction of the annular bead 5 is also parallel to the central axis L of the central through hole 31. The annular bead 5 has a root end integrally formed with the flange body and a tip end 51 opposite to the root end, the tip end preferably being configured to have an inclined surface 52 inclined toward the sleeve portion 32, the second elastic damper element 4b being disposed between the inclined surface and the first housing portion 12. In this way, another vibration damping arrangement is formed between the flange member 3, the second elastic vibration damping element 4b, and the first housing portion 11, and the rigidity of the flange is further improved, and the amount of vibration of the flange member is reduced, thereby reducing radiation noise.

Through using above-mentioned flange subassembly, flange component 3 forms two shock attenuation configurations with two elasticity

shock attenuation elements

4a, 4b cooperation to the motion of bearing assembly 2 has been ensured better, makes bearing assembly can not bear great vibration load, has improved bearing assembly's life-span.

In the present invention, it is particularly advantageous to provide the above-mentioned inclined surface 52 at the top end 51 of the annular rib 5, so that the second elastic shock-absorbing element 4b provided between the inclined surface 52 and the first housing part 11 can provide a supporting force to the flange member 3 in both the radial direction and the axial direction, the supporting force provided in the axial direction can prevent the stress relaxation from occurring to the supporting force to the flange member 3, and the supporting force provided in the radial direction can better maintain the alignment of the bearing with, for example, the blade assembly. To provide better support, the inclined surface 52 may be angled between 10 ° and 45 °, for example between 30 ° and 45 °, to the central axis L of the central through hole 31.

In this utility model, the elastic damping element may be an annular elastic member, which may be made of, for example, a rubber material.

In the present invention, the thickness of the annular rib 5 can be selected to have a strength sufficient to ensure that the annular elastic member is compressed by a certain amount. In particular, in the assembled state of the flange assembly, the first and second

elastic damping elements

4a, 4b are kept in a compressed state, thereby providing a better damping function.

With further reference to fig. 1, the first housing portion 11 and the second housing portion 12 may be joined together, for example, by threaded fasteners 6, and a rubber gasket 7 is also provided between the first and second housing portions to hold the flange assembly in place. .

Industrial applicability

Compared with the prior art, the utility model provides a flange subassembly improves through the structure to the flange component, provides the protruding muscle structure of annular on its flange body for the flange component can cooperate with two at least elasticity shock attenuation elements, thereby forms two at least shock attenuation configurations between flange component and pump casing, has improved the rigidity of flange component, is showing the vibration volume that has reduced the flange component, and has weakened the radiation noise.

According to the utility model discloses a flange subassembly is used for supporting bearing assembly in the pump chamber that the pump casing formed, has ensured bearing assembly's motion for bearing assembly can not bear great vibration load, has improved the life-span of product.

It will be appreciated that the flange assembly according to the present invention is not limited to use in the above-mentioned automotive active purge pump, but may be used in any application where it is necessary to cooperate with a housing portion to support a bearing assembly.

Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited thereto. Various combinations, changes and modifications within the spirit and scope of the present invention will be apparent to those skilled in the art, and the scope of the present invention is to be defined by the appended claims.

Claims

1. A flange assembly for mounting within a pump housing (1) supporting a bearing assembly (2), the pump housing having a first housing part (11) and a second housing part (12),

the flange assembly comprises a flange member (3) and at least two resilient suspension elements, wherein the flange member comprises a flange body (30) having a central through-hole (31) and a sleeve portion (32) for receiving the bearing assembly (2), the flange body (30) having a first mounting surface (3a) to be engaged with the first housing portion (11) and a second mounting surface (3b) opposite the first mounting surface, wherein the sleeve portion (32) extends perpendicularly outwardly from the first mounting surface around the central through-hole (31), a shoulder (33) adapted to receive one of the at least two resilient suspension elements being formed at the intersection of the sleeve portion (32) and the first mounting surface (3 a);

wherein the flange member (3) further has an annular bead (5) extending perpendicularly outwardly from the first mounting surface (3a), another of said at least two resilient shock-absorbing elements being arranged between said annular bead (5) and said first housing part (11).

2. A flange assembly according to claim 1, wherein the annular bead (5) has a root end integrally formed with the flange body and a tip end (51) opposite the root end, the tip end being configured with an inclined surface (52) inclined towards and facing the sleeve portion (32), the further resilient damping element being arranged between the inclined surface and the first housing part (11).

3. The flange assembly according to claim 1, characterized in that said annular bead (5) is provided close to the outer periphery of said flange body (30).

4. The flange assembly according to claim 2, characterized in that said inclined surface (52) forms an angle of between 10 ° and 45 ° with the central axis (L) of the central through hole (31).

5. The flange assembly according to claim 1, wherein said one resilient shock absorbing element is located between the sleeve portion (32) and said first housing portion (11).

6. The flange assembly of claim 1, wherein said at least two resilient shock absorbing elements are two resilient shock absorbing elements.

7. The flange assembly according to any one of claims 1 to 5, wherein said elastic damping element is an annular elastic member.

8. The flange assembly of claim 7 wherein said annular resilient member is made of a rubber material.

9. A flange assembly according to any one of claims 1 to 5, characterised in that the first housing part (11) and the second housing part (12) are connected together by means of threaded fasteners and that a rubber sealing ring is also provided between the first housing part and the second housing part.

10. The flange assembly according to any one of claims 1 to 5, wherein the second mounting face (3b) is to engage with the second housing part (12).