CN218152047U

CN218152047U - Double-side lubrication structure of transmission shaft part rolling bearing

Info

Publication number: CN218152047U
Application number: CN202222836686.0U
Authority: CN
Inventors: 陈方方
Original assignee: Henan Hong Xing Mining Machine Co ltd
Current assignee: Henan Hong Xing Mining Machine Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2022-12-27
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a two lubricated structures in transmission shaft portion antifriction bearing, establish the axle sleeve in the bearing outside and connect the end cover at the axle sleeve both ends including transmission shaft, connection epaxial bearing, cover, the top of axle sleeve has been seted up into oil pipe, advances oil pipe and is located between two bearings, has seted up the oil duct on the lower part of every axle sleeve and the end cover, the both sides space of intercommunication bearing is walked around from the bearing below to the oil duct, and the peak of oil duct is not higher than the bottom of axle sleeve inside wall. Lubricating oil enters the shaft sleeve through the oil inlet pipe, and the oil level of one side of the bearing close to the oil inlet pipe is high, so that the lubricating oil flows into the other side of the bearing through the oil duct under the action of gravity and pressure difference, and the two sides of the bearing are fully lubricated. The flowing lubricating oil can avoid abnormal deformation caused by inconsistent temperatures of all points of the bearing, avoid the problem that the bearing runs unsmoothly to cause overlarge friction, and fully lubricate the contact part between the bearing and the shaft sleeve to prevent the friction between metals.

Description

Double-side lubrication structure of transmission shaft part rolling bearing

Technical Field

The utility model relates to a rotating parts lubricating structure technical field specifically relates to a two side lubricated structures of transmission axial region antifriction bearing.

Background

The shafting system has two fixed ends, one fixed end and one floating end, and two floating ends as common supporting modes. The bearing at the supporting point is important, and the lubrication of the bearing plays the most critical role as the important part of a shafting system, and is related to the service life of the bearing and various parameters such as maintenance, replacement, running time and the like. Thus adequate lubrication of bearings is an struggling goal for all industries.

As shown in fig. 1, in the conventional bearing lubrication, a grease nipple is added at a position corresponding to a bearing lubrication groove for lubrication, so that a certain lubrication effect can be achieved only after equipment runs for a certain time, the lubricating grease can realize fluidity after being melted at a certain temperature, the lubrication is delayed, the effect cannot achieve the expected effect, the service life of the bearing is shortened, and the failure rate is increased. When starting, the grease is still in a solid state, and a larger starting torque is needed for normal starting. And the requirement on the environment is high, and the problems that the starting is difficult in cold regions and the production is influenced can occur.

As shown in FIG. 2, the current stage of bearing lubrication is performed by adopting a lubricating oil mode, the lubricating effect is better than that of lubricating grease, 1/4-1/3 of the bearing is soaked in the lubricating oil, the lubricating oil in a fluid state can be soaked in all positions of the bearing, and the lubricating effect is better.

However, the lubricating oil inlet of the transmission shaft system is positioned between the two bearings, the speed of the bearings is 2000r/min-8000r/min during operation, the probability of lubricating oil entering the bearing rolling elements is less due to the high-speed rotating bearings, only the bearing rolling elements close to the oil inlet side are lubricated, the lubricating oil on the other side is gradually reduced by the swinging of the bearings, and the lubricating oil on the two sides of the bearings is completely isolated from the mutual flowing of the lubricating oil on the two sides of the bearings by the high-speed rotating bearings, so that the lubricating effects on the two sides are inconsistent, the temperatures on the two sides are different, the difference of deformation is caused by the difference of operating environments, and faults are easily caused.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a two lubricated structures in transmission shaft part antifriction bearing to solve the problem that proposes in the above-mentioned background art.

The utility model provides a two side-lubricating structure of transmission axial region antifriction bearing, includes the transmission shaft, connects bearing, cover of transmission epaxial and establishes the axle sleeve in the bearing outside and connect the end cover at the axle sleeve both ends, the top of axle sleeve has been seted up into oil pipe, advances oil pipe and is located between two bearings, has seted up the oil duct on the lower part of every axle sleeve and the end cover, the both sides space of intercommunication bearing is walked around from the bearing below to the oil duct, and the peak of oil duct is not higher than the bottom of axle sleeve inside wall.

Furthermore, the oil passages comprise vertical oil passages and horizontal oil passages, and the vertical oil passages and the horizontal oil passages are communicated to form each oil passage.

The utility model has the advantages as follows:

lubricating oil enters the shaft sleeve through the oil inlet pipe, and the oil level of one side of the bearing close to the oil inlet pipe is high, so that the lubricating oil flows into the other side of the bearing through the oil duct under the action of gravity and pressure difference, and the two sides of the bearing are fully lubricated. The flowing lubricating oil can avoid abnormal deformation caused by inconsistent temperatures of all points of the bearing, avoid the problem that the bearing runs unsmoothly to cause overlarge friction, and fully lubricate the contact part between the bearing and the shaft sleeve to prevent the friction between metals. The full lubrication prolongs the service life of the bearing, reduces the occurrence of vicious conditions such as fatigue life and the like which are easy to generate when the bearing runs at high speed, can effectively prevent foreign matters from invading the inside of the bearing, and prevents the bearing from rusting and corroding.

Drawings

FIG. 1 is a schematic view of a conventional bearing lubrication configuration;

FIG. 2 is a schematic view of a current stage of bearing lubrication;

fig. 3 is a schematic structural diagram of the present invention;

fig. 4 is an enlarged schematic view of a structure in fig. 3.

In the figure: 1-a transmission shaft; 2-a bearing; 3-shaft sleeve; 4-end cover; 5-an oil duct; 501-vertical oil way; 502-horizontal oil circuit; 6-an oil inlet pipe; 7-grease nipple.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 3-4, a structure for double-side lubrication of a rolling bearing at a transmission shaft part comprises a transmission shaft, a bearing connected to the transmission shaft, a shaft sleeve sleeved outside the bearing, and end caps connected to two ends of the shaft sleeve. The oil inlet pipe is arranged at the top of the shaft sleeve and located between the two bearings, the lower portion of each shaft sleeve and the end cover are provided with oil ducts, the oil ducts bypass the space on two sides communicated with the bearings from the lower portions of the bearings, and the highest point of each oil duct is not higher than the bottom of the inner side wall of the shaft sleeve. The oil passages comprise vertical oil passages and horizontal oil passages, and the vertical oil passages and the horizontal oil passages are communicated to form each oil passage.

The utility model discloses an installation and working process as follows:

drilling holes according to the drawing during part processing, and cleaning and purging the oil passage before installation; when the oil duct is installed, the oil duct is aligned firstly and then positioned and installed, so that the specified available sectional area of the oil duct is ensured. And then the screw plug is used for blocking the process hole, so that the effective oil passage required by production is ensured to be smooth.

When the machine is stopped, because a gap exists between the bearing rolling bodies, both sides of the whole bearing can be soaked in lubricating oil. The bearing that the during operation high speed rotated divides into two parts with the lubricating oil of bearing both sides, because the lubricating oil of the whipping bearing annex of bearing can reduce gradually, the bearing that is close to oil feed pipe side can receive new lubricating oil constantly, and the bearing opposite side is then received the lubricating oil of coming through the oil duct and is lubricated, makes the lubricated effect and the performance of whole transmission shaft portion obtain big promotion.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a two side-lubricating structure of transmission axial region antifriction bearing, includes the transmission shaft, connects bearing, the cover of epaxial bearing of transmission and establishes the axle sleeve in the bearing outside and connect the end cover at the axle sleeve both ends, its characterized in that, the top of axle sleeve has been seted up into oil pipe, advances oil pipe and is located between two bearings, has seted up the oil duct on the lower part of every axle sleeve and the end cover, the both sides space of intercommunication bearing is walked around from the bearing below to the oil duct, and the peak of oil duct is not higher than the bottom of axle sleeve inside wall.

2. The double-sided lubrication structure of a rolling bearing of a transmission shaft portion according to claim 1, wherein the oil passages include a vertical oil passage and a horizontal oil passage, and a plurality of the vertical oil passages and the horizontal oil passages are communicated to form each oil passage.