CN218408436U

CN218408436U - Arrangement structure for lubricating bearing in reduction gearbox

Info

Publication number: CN218408436U
Application number: CN202222527196.2U
Authority: CN
Inventors: 汪武强; 杨志龙; 王琪
Original assignee: Wuxi Wolfe Autoparts Co ltd
Current assignee: Wuxi Wolfe Autoparts Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-01-31
Anticipated expiration: 2032-09-23

Abstract

The utility model discloses a lubricated arrangement structure of reducing gear box inner bearing, including the gear box, wherein: the gear box is provided with a first bearing seat hole and a second bearing seat hole; the first bearing seat hole and the second bearing seat hole are respectively provided with a lateral opening; the lateral opening is configured to penetrate through an oil storage cavity in the bearing seat and the gear box; gear oil in the gear box enters the oil storage cavity through the lateral opening. Through set up the side direction opening in the bearing frame outside, can make gear oil get into the oil storage chamber of bearing frame to lubricated the bearing.

Description

Arrangement structure for lubricating bearing in reduction gearbox

Technical Field

The utility model belongs to the technical field of new energy automobile electric drive axle reducing gear box, especially, relate to a lubricated arrangement structure of reducing gear box inner bearing.

Background

At present, two ends of a reduction gearbox gear shaft of an electric drive axle are mostly provided with tapered roller bearings, and because the gear shaft rotates at a high speed, gears and the bearings need gear oil for lubrication. Bearing lubrication in the present gear box is mostly splash lubrication, and main structural style has following two kinds of forms:

1. an internal oil passage is formed in the gear box main body, and splashed gear oil is guided to the position below the bearing mounting seat to lubricate a bearing by matching with a baffle plate structure arranged in a proper area of an oil passage outlet, so that the complexity of the gear box is increased, the casting process difficulty of a product is higher, the yield of the gear box is reduced due to the existence of the internal oil passage in the production process, and the cost of the product is further increased; meanwhile, a die-casting process cannot be adopted basically, so that only cast iron materials can be used on the materials, but light aluminum alloy cannot be used on the materials, and the quality of the gear box is improved.

2. The side surface of the bearing seat of the gear box is directly opened, the structure is simple, but the gear oil which directly enters the opening of the bearing seat in the splashing process can only be used for lubricating the bearing, the utilization rate of the gear oil is not high, the lubricating effect needs to be repeatedly verified, and the period and the cost of the development process are higher.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the related art, the application provides the arrangement structure for lubricating the bearing in the reduction gearbox, which can effectively solve the problems of complex casting process, low yield and high cost caused by the adoption of an internal oil duct.

The technical scheme is as follows:

an arrangement for lubrication of bearings in a reduction gearbox, comprising a gearbox, wherein: the gear box is provided with a first bearing seat hole and a second bearing seat hole; the first bearing seat hole and the second bearing seat hole are respectively provided with a lateral opening; the lateral opening is configured to penetrate through an oil storage cavity in the bearing seat and the gear box; gear oil in the gear box enters the oil storage cavity through the lateral opening.

Through set up the side direction opening in the bearing frame outside, can make gear oil get into the oil storage chamber of bearing frame to lubricated the bearing.

Further, the second bearing seat hole is provided with a second shaft gear, wherein; the axis of the second shaft gear is positioned at the liquid level of the gear oil; the second shaft gear is driven by the driving device to rotate; the second shaft gear is configured to splash gear oil to an upper portion of the gear box and then flow into the oil reservoir chamber through a lateral opening of the second bearing seat bore.

Furthermore, an oil collecting baffle is arranged on the side edge of the lateral opening of the second bearing seat hole; the oil collecting baffle is arranged on the gear box; the flow guide end of the oil collecting baffle is arranged at the lateral opening of the first bearing seat hole; the oil collecting baffle is configured to block gear oil stirred by the second shaft gear and then guide the gear oil into the lateral opening of the first bearing seat hole.

An oil collecting baffle is arranged to collect gear oil and inject the gear oil into the lateral opening of the first bearing seat hole, and then the gear oil is injected into the oil storage cavity, so that sufficient gear oil is provided for bearing lubrication.

Further, the oil collecting baffle is fixed on the gear box through bolts.

Furthermore, the oil collecting baffle is arranged in a strip shape; the flow guide tail end of the oil collecting baffle is provided with a bending structure; the bending angle of the bending structure is 105-110 degrees, and the bending line has an inclination angle of 3-5 degrees.

Further, the width dimension of the lateral opening is 8-10mm.

Further, the first bearing seat hole is arranged at a position higher than the liquid level of the gear oil.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic view of the front structure of the gear box of the present invention;

FIG. 2 is a schematic view of the back structure of the gear box of the present invention;

FIG. 3 is a schematic structural view of the oil storage chamber and the lateral opening of the present invention;

fig. 4 is a schematic structural view of an oil collecting baffle plate according to the present invention in front and top views;

fig. 1 to 4 include: 1. a gear case; 2. a liquid level; 3. a bolt; 4. an oil collecting baffle; 5. a second shaft gear; 6. an oil storage chamber; 7. and (4) opening laterally.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

As shown in figures 1-4:

an arrangement structure for bearing lubrication in a reduction gearbox comprises a gear box 1, wherein: the gear box 1 is provided with a first bearing seat hole and a second bearing seat hole; the first bearing seat hole and the second bearing seat hole are both provided with lateral openings 7; the lateral opening 7 is arranged to pass through the oil reservoir 6 in the bearing housing and the gear housing 1; gear oil in the gearbox 1 enters the oil reservoir 6 through a lateral opening 7.

By providing a lateral opening 7 in the exterior of the bearing housing, gear oil can be admitted into the oil reservoir 6 of the bearing housing, thereby lubricating the bearing.

The second bearing seat hole is provided with a second shaft gear 5, wherein; the axle center of the second shaft gear 5 is positioned at the liquid level 2 of the gear oil; the second shaft gear 5 is driven to rotate by a driving device; the second shaft gear 5 is configured to stir up gear oil to the upper portion of the gear case 1 and then flow into the oil reservoir 6 through the lateral opening 7 of the second bearing hole.

An oil collecting baffle 4 is arranged on the side edge of the lateral opening 7 of the second bearing seat hole; the oil collecting baffle 4 is arranged on the gear box 1; the flow guide end of the oil collecting baffle 4 is arranged at the lateral opening 7 of the first bearing seat hole; the oil collecting baffle 4 is configured to guide gear oil stirred by the second shaft gear 5 into the lateral opening 7 of the first bearing seat hole after being blocked.

The lateral opening 7 penetrates through an oil storage cavity 6 at the bottom of the bearing and external gear oil, when the bearing works, the second shaft gear 5 stirs the gear oil, the gear oil is thrown to the upper part of the gear box 1 along the rotating direction, and the splashed gear oil enters the oil storage cavity 6 in the bearing seat through the lateral opening 7, so that the bearing is lubricated; in order to guide more gear oil into the oil storage cavity 6 at the position of the first bearing seat hole, the oil collection baffle plate 4 is arranged to block the gear oil on the splashing path, and the collected gear oil flows downwards to the inner side through the inclined surface of the oil collection baffle plate 4 and is directly injected into the lateral opening 7 of the first bearing seat hole and further into the oil storage cavity 6, so that sufficient gear oil is provided for bearing lubrication.

The oil collecting baffle 4 is fixed on the gear case 1 through a bolt 3.

The oil collecting baffle 4 is arranged in a strip shape; the diversion tail end of the oil collecting baffle 4 is provided with a bending structure; the bending angle of the bending structure is 105-110 degrees, and the bending line has an inclination angle of 3-5 degrees.

The width dimension of the lateral opening 7 is 8-10mm.

The first bearing seat hole is arranged at a position higher than the liquid level 2 of the gear oil.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An arrangement structure for bearing lubrication in a reduction gearbox, characterized in that the arrangement structure for bearing lubrication in the reduction gearbox comprises a gearbox, wherein:

the gear box is provided with a first bearing seat hole and a second bearing seat hole;

the first bearing seat hole and the second bearing seat hole are respectively provided with a lateral opening;

the lateral opening is configured to communicate with an oil reservoir in the bearing housing and the gear housing;

and gear oil in the gear box enters the oil storage cavity through the lateral opening.

2. An arrangement of bearing lubrication in a reduction gearbox according to claim 1, characterised in that the second bearing seat bore is provided with a second shaft gear, wherein;

the axis of the second shaft gear is positioned at the liquid level of the gear oil;

the second shaft gear is driven to rotate by a driving device;

the second shaft gear is configured to splash the gear oil to an upper portion of the gear box and then flow into the oil reservoir through the lateral opening of the second bearing seat bore.

3. The arrangement structure for bearing lubrication in a reduction gearbox according to claim 2, wherein an oil collecting baffle is arranged on the side edge of the lateral opening of the second bearing seat hole;

the oil collecting baffle is arranged on the gear box;

the flow guide end of the oil collecting baffle is arranged at the lateral opening of the first bearing seat hole;

the oil collecting baffle is configured to guide the gear oil stirred by the second shaft gear into the lateral opening of the first bearing seat hole after blocking the gear oil.

4. An arrangement for bearing lubrication in a reduction gearbox according to claim 3, characterised in that the oil gathering baffle is fixed to the gearbox by bolts.

5. The arrangement structure for bearing lubrication in a reduction gearbox according to claim 3, wherein the oil collecting baffle is arranged in a strip shape; the flow guide tail end of the oil collecting baffle is provided with a bending structure; the bending angle of the bending structure is 105-110 degrees, and the bending line has an inclination angle of 3-5 degrees.

6. An arrangement for bearing lubrication in a reduction gearbox according to claim 1, characterised in that the width dimension of the lateral opening is 8-10mm.

7. The arrangement structure for bearing lubrication in a reduction gearbox according to claim 1, wherein the first bearing seat hole is arranged at a position higher than the liquid level of the gear oil.