CN217927123U

CN217927123U - Combined sealing shaft sleeve of thermal management module

Info

Publication number: CN217927123U
Application number: CN202121258462.5U
Authority: CN
Inventors: 陈增宝; 孙卫华; 李明
Original assignee: Anhui Cooper Sealing Technology Co ltd
Current assignee: Anhui Cooper Sealing Technology Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-11-29
Anticipated expiration: 2031-06-07

Abstract

The utility model provides a heat management module's combination seal axle sleeve, including the rubber body, the rubber body has open-ended annular structure for the middle part, and rubber body a terminal surface an organic whole vulcanizes and bonds and have the PTFE diaphragm. The utility model discloses replace former axle sleeve sealed plastics with the PTFE diaphragm to block up, the PTFE diaphragm characteristics are low friction, corrosion-resistant, high temperature resistant etc to the PTFE diaphragm directly vulcanizes with the rubber body and bonds together, when PTFE diaphragm and axle contact during operation, because PTFE's self-lubricating characteristic, reduced the friction torque when the ball valve rotates, improved wear resistance, guaranteed product life, improved the reliability in the time of reduce cost.

Description

Combined sealing shaft sleeve of thermal management module

Technical Field

The utility model relates to a sealed technical field especially relates to a combined seal axle sleeve of thermal management module.

Background

The engine heat management module is not only applied to the traditional fuel vehicle, but also continuously popularized in new energy automobiles. At present, a sealing bush used at home and abroad generally adopts a structure as shown in figure 1, the sealing bush is formed by combining a framework, a rubber body and a plastic plug, and a lip of the rubber body radially seals a shaft (a water pipe) to prevent cooling liquid in a ball valve from leaking into a cavity; the plastic plug is in contact with the ball valve for sealing; the metal framework is connected with the rubber body and the plastic plug to prevent the rubber body and the plastic plug from being separated during working; the spring at the top of the sealing shaft sleeve provides compensation force acting on the framework, so that the sealing performance is reduced after later plastic blockage and abrasion are prevented.

Although the sealing shaft sleeve can meet the specific application working condition, the sealing shaft sleeve has the following defects that the sealing shaft sleeve is formed by combining three materials, and the top of the sealing shaft sleeve needs a spring, so the cost is relatively high; the friction torque of plastic blocking is relatively high, and the wear-resisting and durability performance is not ideal; the single lip design of rubber, the module operation later stage is revealed easily.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem who exists among the background art, the utility model provides a combined seal axle sleeve of thermal management module.

The utility model provides a combined sealing axle sleeve of thermal management module, including the rubber body, the rubber body has the open-ended loop configuration for the middle part, and rubber body a terminal surface an organic whole vulcanizes and bonds and have the PTFE diaphragm.

Preferably, one end face of the rubber body far away from the PTFE is provided with an inner sealing lip and an outer sealing lip which are coaxially arranged with the rubber body, the inner sealing lip is positioned in the outer sealing lip, and the inner sealing lip and the outer sealing lip extend outwards and incline inwards.

Preferably, the inner wall of the rubber body is provided with an annular groove, one end of the annular groove, far away from the PTFE membrane, is provided with an opening, and a PPS plastic framework connected with the rubber body is additionally arranged in the annular groove.

Preferably, the PPS plastic framework extends outwards through the opening of the ring groove.

Preferably, one end face of the rubber body comprises an inner ring face and an outer ring face, the joint of the inner ring face and the outer ring face is in arc transition, the inner ring face is provided with a circular truncated cone-shaped cross section, the diameter of the circular truncated cone is gradually increased from one end far away from the outer ring face to one end close to the outer ring face, and the PTFE membrane is bonded on the inner ring face and the outer ring face in a vulcanization mode.

Preferably, the PTFE membrane has a thickness of 0.45 to 0.55mm.

The utility model provides a combined sealing shaft sleeve of heat management module replaces the sealed plastics of former axle sleeve with the PTFE diaphragm and blocks up, and the PTFE diaphragm characteristics are low friction, corrosion-resistant, high temperature resistant etc. to the PTFE diaphragm is directly vulcanized with the rubber body and is bonded together, when the PTFE diaphragm contacts work with the axle, because the self-lubricating characteristic of PTFE, the friction torque when having reduced the ball valve rotation has improved wear resistance, has guaranteed the product life-span, has improved the reliability when reduce cost; the double-lip axial sealing design is adopted, and due to the fact that enough elastic force can directly provide compensation force, the sealing performance reduction caused by insufficient pressure after the bottom PTFE membrane is abraded is effectively prevented; the plastic framework made of PPS (polyphenylene sulfide) is additionally arranged at the inner circle of the rubber body, so that the overall support performance is ensured, and the leakage of products caused by the deformation of rubber can be effectively avoided.

Drawings

Fig. 1 is a schematic structural diagram of a sealing sleeve in the prior art.

Fig. 2 is a schematic structural diagram of a combined sealing sleeve of a thermal management module according to the present invention.

Detailed Description

Referring to fig. 2, the utility model provides a hot management module's combination seal axle sleeve, including the rubber body 1, the rubber body 1 has open-ended annular structure for the middle part, and rubber body 1 a terminal surface an organic whole vulcanizes and bonds and have PTFE diaphragm 2. Specifically, one end face of the rubber body 1 comprises an inner ring face and an outer ring face, the joint of the inner ring face and the outer ring face is in arc transition, the inner ring face is provided with a circular truncated cone-shaped cross section, the diameter of the circular truncated cone is gradually increased from one end far away from the outer ring face to one end close to the outer ring face, and the PTFE membrane 2 is vulcanized and bonded on the inner ring face and the outer ring face

In this embodiment, replace former shaft sleeve sealed plastics with PTFE diaphragm 2 and block up, PTFE diaphragm 2 characteristics are low friction, corrosion-resistant, high temperature resistant etc to PTFE diaphragm 2 and rubber body 1 directly vulcanize the bonding together, when PTFE diaphragm 2 and axle contact work, because PTFE's self-lubricating characteristic, the friction torque when having reduced the ball valve rotation has improved wear resistance, has guaranteed product life, has improved the reliability when reduce cost.

In this embodiment, an inner seal lip 3 and an outer seal lip 4 which are coaxial with the rubber body 1 are disposed on one end face of the rubber body 1 away from the PTFE, the inner seal lip 3 is located inside the outer seal lip 4, and the inner seal lip 3 and the outer seal lip 4 extend outwards and are inclined inwards. Adopt the axial seal design of lips, owing to have sufficient elasticity can directly provide the offset force, the effectual sealing performance who prevents because of the not enough sealing performance that leads to of bottom PTFE diaphragm 2 wearing and tearing back pressure descends, and this lips has replaced the spring of primary structure, and the cost obviously descends, and the sealing performance of lips is superior to single lip greatly, no matter earlier stage or later stage, and sealing performance does not have obvious difference.

In this embodiment, the annular has been seted up to the inner wall of rubber body 1, and the annular is kept away from 2 one ends of PTFE diaphragm and is had the opening, and the annular is built-in to be equipped with the PPS plastic skeleton 5 of being connected with rubber body 1 additional. The PPS plastic skeleton 5 extends outwards through the opening of the ring groove. The plastic framework 5 made of PPS is additionally arranged at the inner circle of the rubber body 1, so that the overall support performance is guaranteed, and the leakage of products caused by the deformation of rubber can be effectively avoided.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A combined sealing shaft sleeve of a thermal management module is characterized by comprising a rubber body (1), wherein the rubber body (1) is of an annular structure with an opening in the middle, and a PTFE membrane (2) is integrally vulcanized and bonded on one end surface of the rubber body (1);

an inner sealing lip (3) and an outer sealing lip (4) which are coaxially arranged with the rubber body (1) are arranged on one end face, away from the PTFE, of the rubber body (1), the inner sealing lip (3) is positioned in the outer sealing lip (4), and the inner sealing lip (3) and the outer sealing lip (4) extend outwards and are inclined inwards;

the annular groove is formed in the inner wall of the rubber body (1), an opening is formed in one end, away from the PTFE membrane (2), of the annular groove, and a PPS plastic framework (5) connected with the rubber body (1) is additionally arranged in the annular groove.

2. The composite sealing sleeve of a thermal management module according to claim 1, characterized in that the PPS plastic skeleton (5) extends outwards through the opening of the ring groove.

3. The composite sealing sleeve of a thermal management module according to claim 1, wherein one end surface of the rubber body (1) comprises an inner annular surface and an outer annular surface, the inner annular surface and the outer annular surface are connected through an arc transition, the inner annular surface has a truncated cone-shaped cross section, the diameter of the truncated cone is gradually increased from one end far away from the outer annular surface to one end close to the outer annular surface, and the PTFE membrane (2) is vulcanized and bonded on the inner annular surface and the outer annular surface.

4. The composite sealing sleeve of a thermal management module according to claim 1, characterized in that the PTFE membrane (2) has a thickness of 0.45-0.55mm.