CN214788598U

CN214788598U - Dry-grinding-prevention bearing sleeve, bearing system thereof and supercharger

Info

Publication number: CN214788598U
Application number: CN202120734131.8U
Authority: CN
Inventors: 欧永健; 靳鹏; 李峰; 姚国瑞; 阳宇宁; 张焕芳
Original assignee: Hunan Tianyan Machinery Co Ltd
Current assignee: Hunan Tianyan Machinery Co Ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-11-19
Anticipated expiration: 2031-04-12

Abstract

The utility model relates to a machine parts designs technical field, discloses an prevent dry grinding bearing housing and bearing system and booster thereof, including the bearing housing body, seted up oil feed tank, inlet port and oil gallery on the bearing housing body, bearing housing body inner chamber has rotor shaft supporting surface, and bearing housing body inner chamber sets up the oil storage tank in non-rotor shaft supporting surface department. In the process that the lubricating oil flows through the oil storage tank from the oil inlet hole to the oil return hole, the oil storage tank can store a certain amount of lubricating oil, so that the problem of dry friction of a bearing system of the supercharger in the frequent power conversion process of various mechanical devices is effectively solved, and meanwhile, the dry friction fault of the bearing system of the supercharger can be prevented when the engine is started in cold winter.

Description

Dry-grinding-prevention bearing sleeve, bearing system thereof and supercharger

Technical Field

The utility model belongs to the technical field of machine parts designs, specifically, relate to a prevent dry grinding bearing sleeve and bearing system and booster thereof.

Background

With the increasing degree of strengthening of internal combustion engines and the stricter emission standards, turbocharging technology becomes one of the most critical measures for improving the economy, the dynamic performance and the emission standards of the internal combustion engines. With the development of high pressure ratio, extended range and hybrid turbocharging technology, the impact of frequent power switching on a supercharger bearing system is increased continuously, a bearing sleeve adopted by the conventional supercharger bearing system is shown in figure 2, the inlet pressure of lubricating oil is reduced to some extent along with the continuous increase of axial force, particularly, the engine stops supplying oil immediately when the hybrid vehicle type power is switched, but at the moment, the supercharger runs at high speed, and a rotor system continues to run for more than 10 seconds under the inertia force, so that the dry wear of the bearing system is caused.

In order to ensure the reliable operation of the supercharger and meet the reliability requirement of an engine, each supercharger factory carries out a series of optimization improvements on a bearing sleeve and a bearing system, but only improves the wear resistance of the bearing under the working condition with lubricating oil, and does not fundamentally solve the dry grinding phenomenon of the bearing under the condition without the lubricating oil.

Disclosure of Invention

The utility model aims at overcoming the above-mentioned not enough of prior art, provide a prevent dry grinding bearing sleeve.

The technical scheme of the utility model is that: the utility model provides a prevent dry grinding bearing housing, includes the bearing housing body, has seted up oil feed tank, inlet port and oil gallery on the bearing housing body, and bearing housing body inner chamber has rotor shaft supporting surface, and bearing housing body inner chamber sets up the oil storage tank in non-rotor shaft supporting surface department.

The utility model discloses further technical scheme is: the oil storage tank is positioned at the middle section of the bearing sleeve body.

The utility model discloses a further technical scheme is: the oil inlet groove is arranged at the position close to the end part of the bearing sleeve body.

The utility model discloses still further technical scheme is: the number of the oil inlet grooves is two, and the oil inlet grooves are respectively distributed at two ends of the bearing sleeve body.

The utility model discloses further technical scheme is: the oil return hole is arranged at the position of the oil storage tank.

The utility model discloses another technical scheme is: a bearing system is provided with the anti-dry-grinding bearing sleeve.

The utility model discloses another technical scheme is: a supercharger is provided with the anti-dry-grinding bearing sleeve.

Compared with the prior art, the utility model following beneficial effect has:

in the process that the lubricating oil flows through the oil storage tank from the oil inlet hole to the oil return hole, the oil storage tank can store a certain amount of lubricating oil, so that the problem of dry friction of a bearing system of the supercharger in the frequent power conversion process of various mechanical devices is effectively solved, and meanwhile, the dry friction fault of the bearing system of the supercharger can be prevented when the engine is started in cold winter;

in addition, the oil storage tank can automatically store part of lubricating oil when the bearing system and the like stop working, the lubricating oil does not need to be added manually, and the supercharger does not need to be pre-lubricated in advance when the whole mechanical device or the engine is restarted under the condition that the engine is not used for a long time.

The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.

Drawings

Fig. 1 is a schematic structural view of a dry-abrasion prevention bearing sleeve according to embodiment 1;

fig. 2 is a schematic structural diagram of a bearing sleeve in the prior art.

Detailed Description

Example 1

The bearing system comprises a dry-grinding-proof bearing sleeve, as shown in figure 1, the bearing sleeve comprises a bearing sleeve body 1, two ends of the bearing sleeve body are respectively provided with an oil inlet groove 2, the oil inlet grooves are distributed with a plurality of oil inlet holes 3, two ends of an inner cavity of the bearing sleeve body 1 are provided with rotor shaft supporting surfaces 4, an oil storage groove 5 is arranged at the middle section of the inner cavity of the bearing sleeve body and is formed by the concave of the original inner cavity wall towards the peripheral surface of the bearing sleeve body, the bearing sleeve body is provided with two oil return holes 6 in the horizontal direction at the corresponding position of the center of the oil storage groove 5, and the oil storage groove 5 can automatically store a certain amount of lubricating oil all the time in the process that the lubricating oil flows from the oil inlet hole 3 to the oil return holes 6, lubricating oil does not need to be added artificially, so that the dry friction phenomenon of a bearing system of the supercharger in the frequent power conversion process of the vehicle is effectively avoided, and meanwhile, the dry friction fault of the bearing system of the supercharger can be prevented when the engine is started in cold winter; in addition, under the condition that the whole vehicle or the engine is not used for a long time, when the engine needs to be started again, because the quantitative lubricating oil is stored in the oil storage tank when the engine is used for the last time, the supercharger does not need to be pre-lubricated in advance, and the engine can be normally started to work.

The utility model discloses not limit to foretell specific structure or connected mode, as long as have with this technical scheme thinking the same or close bearing housing just fall within the protection scope of the utility model.

Claims

1. The utility model provides a prevent dry grinding bearing housing, includes bearing housing body (1), has seted up oil feed tank (2), inlet port (3) and oil gallery (6) on the bearing housing body, and bearing housing body inner chamber has rotor shaft supporting surface (4), characterized by: an oil storage tank (5) is arranged in the inner cavity of the bearing sleeve body (1) at the non-rotor shaft supporting surface.

2. The anti-dry bearing sleeve according to claim 1, wherein: the oil storage tank (5) is positioned at the middle section of the bearing sleeve body (1).

3. The anti-dry grinding bearing sleeve according to claim 1 or 2, characterized in that: the oil inlet groove (2) is arranged at the position close to the end part of the bearing sleeve body.

4. The anti-dry bearing sleeve according to claim 3, wherein: the number of the oil inlet grooves (2) is two, and the oil inlet grooves are respectively distributed at two ends of the bearing sleeve body (1).

5. The anti-dry grinding bearing sleeve according to claim 1 or 2, characterized in that: the oil return hole (6) is arranged at the position of the oil storage tank.

6. An anti-dry-grinding bearing system is characterized in that: a dry-abrasion-proof bearing sleeve according to any one of claims 1 to 5.

7. A supercharger is characterized in that: a dry-abrasion-proof bearing sleeve according to any one of claims 1 to 5.