CN111102297A

CN111102297A - Bearing inner ring side lubrication type axial bearing ball bearing for vehicle

Info

Publication number: CN111102297A
Application number: CN201911356226.4A
Authority: CN
Inventors: 林凯敏; 沈叶庆; 潘庾强
Original assignee: Zhejiang Deqing Fuyuan Intelligent Equipment Technology Co Ltd
Current assignee: Zhejiang Deqing Fuyuan Intelligent Equipment Technology Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-05-05

Abstract

The invention belongs to the technical field of ball bearings, and particularly relates to a bearing inner ring side lubrication type axial pressure-bearing ball bearing for a vehicle. The cylindrical reinforcing shaft comprises an inner ring body, an outer ring body, a plurality of balls and a retainer for keeping the balls not in contact with each other, wherein the balls are positioned between the inner ring body and the outer ring body and are respectively in rolling connection with the inner ring body and the outer ring body, the positions, corresponding to the outer surface of the inner ring body and the inner surface of the outer ring body, of the outer surface of the inner ring body are provided with a ball connecting groove and a reinforcing shaft connecting groove, the balls are in rolling connection in the ball connecting grooves, the cylindrical reinforcing shaft further comprises a reinforcing shaft, the side surface of the reinforcing shaft is attached to the bottom surface of the reinforcing shaft connecting groove, and the bottom surface. The reinforcing shaft connecting grooves are oppositely arranged between the inner ring body and the outer ring body, and the plurality of reinforcing shafts are positioned in the reinforcing shaft connecting grooves, so that the axial force bearing capacity of the ball bearing is improved.

Description

Bearing inner ring side lubrication type axial bearing ball bearing for vehicle

Technical Field

The invention belongs to the technical field of ball bearings, and particularly relates to a bearing inner ring side lubrication type axial pressure-bearing ball bearing for a vehicle.

Background

The ball bearing is one kind of rolling bearing, installs spherical alloy steel ball in the middle of inner steel ring and outer steel ring, reduces the frictional force in the power transmission process and improves the transmission efficiency of mechanical power with rolling mode, and current ball bearing mainly contains four essential element: ball, inner ring, outer loop and retainer, the axle journal cooperatees with the inner ring, and in the use, inner ring and axle journal synchronous revolution, the outer loop remains the stillness, through ball rolling connection between inner ring and the outer loop to reduce the whole internal friction who receives of mechanism, ball bearing among the prior art bears the ability of axial force less strongly, receives the axial force and leads to the bearing inner and outer ring separation and the problem of damaging the bearing easily when doing all can.

For example, chinese utility model patent discloses a ball bearing [ application number: 201620841237.7], the utility model discloses a including bearing inner race and bearing inner race, the outer peripheral face of bearing inner race is equipped with the inner circle channel, the inner peripheral face of bearing inner race is equipped with the outer lane channel, its characterized in that, the inner circle channel curvature coefficient of inner circle channel is 1.04, the outer lane channel curvature coefficient of outer lane channel is 1.05.

The invention has the advantages of reducing the heat productivity and increasing the safety of the hand-held electric tool, but the invention still does not solve the problems.

Disclosure of Invention

The invention aims to solve the problems and provides a bearing inner ring side lubrication type axial bearing for a pressure-bearing vehicle.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a lubricated formula axial pressure-bearing automobile-used ball bearing in bearing inner ring side, includes inner ring body, outer loop body, a plurality of ball and is used for keeping each ball noncontacting holder each other, the ball is located between inner ring body and the outer loop body and respectively with inner ring body and outer loop body roll connection, the surface of inner ring body and the corresponding position of the internal surface of outer loop body are provided with ball spread groove and reinforcing shaft connecting groove, and ball roll connection is still including being columniform reinforcing shaft in the ball spread groove, reinforcing shaft side laminates with reinforcing shaft connecting groove bottom surface mutually, and the reinforcing shaft bottom surface laminates with reinforcing shaft connecting groove side mutually.

In foretell bearing inner ring side lubrication formula axial pressure-bearing vehicle ball bearing, inner ring body internal surface is for being connected the face with axle journal matched with, and inner ring body surface is for rotating the holding surface of being connected with the outer loop body, and ball spread groove and reinforcing shaft connecting groove all set up on the holding surface, reinforcing shaft connecting groove has two and symmetry and sets up in ball spread groove both sides, and the width that the ball is connected is more than the twice of reinforcing shaft connecting groove width.

In the bearing inner ring side lubrication type axial pressure-bearing vehicle ball bearing, the bearing inner ring side lubrication type axial pressure-bearing vehicle ball bearing further comprises a lubrication pipeline arranged in the inner ring body, one end of the lubrication pipeline penetrates through the side wall of the inner ring body, and the other end of the lubrication pipeline extends to a position between the connection surface and the shaft neck.

In foretell bearing inner ring side lubrication formula axial pressure-bearing vehicle ball bearing, the lubrication line is including the oil inlet that link up the inner ring body lateral wall and the oil-out that link up the connection face, and the oil-out communicates the axle journal surface, the oil inlet is linked together with the oil-out, and the lubrication line is still including setting up on the connection face and the inside sunken branch oil groove of ring body inwards, the oil-out is linked together with branch oil groove bottom surface, and when the axle journal matches with the connection face, the axle journal covers in the upper surface of branch oil groove, the oil inlet has and only one.

In the bearing inner ring side lubrication type axial bearing ball bearing for the vehicle, the two sides of the oil distribution groove are symmetrically provided with the lubrication ports communicated with the oil distribution groove, and the lubrication ports extend along the axial lead direction of the inner ring body.

In the ball bearing for the bearing inner ring side lubrication type axial bearing vehicle, the width of the lubrication port is gradually reduced from one end close to the oil distribution groove to one end far away from the oil distribution groove, the depth of the lubrication port recessed into the inner ring body is gradually reduced from one end close to the oil distribution groove to one end far away from the oil distribution groove, and the lubrication ports are uniformly distributed along the edge of the oil distribution groove in the circumferential direction.

In the above-mentioned ball bearing for a bearing inner ring side lubrication type axial pressure-bearing vehicle, the balls are uniformly distributed in front of the inner ring body and the outer ring body by the steps of:

the method comprises the following steps: a ball feeding step, namely placing the inner ring body and the outer ring body on a processing seat, wherein a pre-separation mechanism is positioned between the inner ring body and the outer ring body, and a plurality of balls are added between the inner ring body and the outer ring body;

step two: a pre-separation step, namely driving a pre-separation mechanism to enable the pre-separation mechanism to move close to the processing seat until the ball is contacted with the surface of the pre-separation mechanism, and rotating the pre-separation mechanism to drive the ball to rotate;

step three: and a separation step, namely driving the pre-separation mechanism to enable the pre-separation mechanism to move away from the processing seat, driving the separator to move close to the processing seat, and clamping the balls into a separation groove on the separator to complete ball separation.

In foretell bearing inner ring side lubricated formula axial pressure-bearing vehicle ball bearing, the separation mechanism in advance includes the arc separation tile of a plurality of centre of a circle coincidence each other, and different arc separation tiles are connected with same actuating mechanism's drive shaft drive, and the arc separation tile includes the separation tile body, a side surface that the separation tile body is close to the processing seat has to the separation recess of separation tile body inside sunken, the separation recess is equipped with a plurality of groups, and every group separation recess includes the three separation recess that sets gradually.

In the ball bearing for the bearing inner ring side lubrication type axial bearing vehicle, the separator comprises a cylindrical separator main body, the driver is in driving connection with the separator main body, the end, close to the processing seat, of the separator main body extends along the axial line direction of the separator main body to form separating claws, the number of the separating claws is the same as that of the balls, a separating groove is formed between every two adjacent separating claws, the bottom of the separating groove is arc-shaped, the radian of the separating groove is matched with that of the outer surface of each ball, and the end part of each separating claw is arc-shaped.

In the ball bearing for the bearing inner ring side lubrication type axial pressure-bearing vehicle, the lengths of the separating claws are sequentially increased or decreased along the clockwise direction, the lengths of the different separating claws form an equal difference series, and the length difference between the separating claw with the longest length and the separating claw with the shortest length is smaller than the diameter of the ball.

Compared with the prior art, the invention has the advantages that:

1. the reinforcing shaft connecting grooves are oppositely arranged between the inner ring body and the outer ring body, and the plurality of reinforcing shafts are positioned in the reinforcing shaft connecting grooves, so that the axial force bearing capacity of the ball bearing is improved.

2. After the bearing is used, the lubrication between the connecting surface and the shaft neck can be realized by using the lubrication pipeline, so that the disassembly and assembly between the inner ring body and the shaft neck are convenient.

3. The invention is only provided with one oil inlet, so that the lubricating speed of lubricating oil can be increased by pressurization, and the lubricating speed of the lubricating oil can be further increased by setting the width and the depth of the lubricating port, and the disassembly and assembly efficiency is improved.

4. The ball separating device is also provided with a step of pre-separating by using the pre-separating mechanism before separating balls by using the separator, thereby greatly improving the success rate of ball separating and ensuring higher production efficiency.

5. The end part of the separating claw is arranged in the shape of an arc, so that the damage to the ball bearing in the ball separating process is reduced, and the service life of the separator can be prolonged.

6. The separating claw of the invention can be set to be shorter in length, thereby reducing the movement stroke of the separator in the ball separating process, shortening the production time and improving the production efficiency.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a schematic structural view of the inner ring body;

FIG. 3 is a schematic view of the inner ring body from another perspective;

FIG. 4 is a schematic illustration of the ball separation process of the present invention;

FIG. 5 is a schematic diagram of the separator;

FIG. 6 is a top view of the tool holder;

FIG. 7 is a schematic view of the construction of an arcuate separator tile;

FIG. 8 is a schematic structural view of a ball divider in the prior art;

in the figure: the lubricating device comprises a connector a, a base body b, a ball separating head c, a ball separating claw d, an inner ring body 1, a lubricating pipeline 2, an outer ring body 3, a machining seat 4, a pre-separating mechanism 5, a separator 6, a separating groove 7, balls 8, a connecting surface 11, a supporting surface 12, a ball connecting groove 13, a reinforcing shaft connecting groove 14, a reinforcing shaft 15, an oil inlet 21, an oil outlet 22, an oil separating groove 23, a lubricating port 24, an arc chamfer 25, an arc separating tile 51, a separating tile body 52, a separating groove 53, a separator main body 61 and a separating claw 62.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example 1

The embodiment provides a lubricated automobile-used ball bearing of bearing inner ring side axial pressure, as shown in fig. 1, a lubricated automobile-used ball bearing of bearing inner ring side axial pressure, include inner ring body 1, outer loop body 3, a plurality of ball 8 and be used for keeping each ball 8 not contact each other's holder 9, ball 8 is located between inner ring body 1 and the outer loop body 3 and respectively with inner ring body 1 and outer loop body 3 roll connection, the corresponding position of the surface of inner ring body 1 and the internal surface of outer loop body 3 is provided with ball spread groove 13 and reinforcing shaft spread groove 14, and ball 8 roll connection is still including being columniform reinforcing shaft 15 in ball spread groove 13, reinforcing shaft 15 side and reinforcing shaft spread groove 14 bottom surface laminate mutually, and reinforcing shaft 15 bottom surface and reinforcing shaft spread groove 14 side laminate mutually.

When the ball bearing is used, the axial lead of the reinforcing shaft 15 is parallel to the axial leads of the inner ring body 1 and the outer ring body 3, so that the reinforcing shaft 15 can provide an axial support for the whole ball bearing, the reinforcing shaft connecting grooves 14 are oppositely arranged between the inner ring body 1 and the outer ring body 3, and the reinforcing shafts 15 are positioned in the reinforcing shaft connecting grooves 14, so that the axial force bearing capacity of the ball bearing is improved.

As shown in fig. 1-3, the inner surface of the inner ring body 1 is a connection surface 11 matched with a shaft neck, the outer surface of the inner ring body 1 is a supporting surface 12 connected with the outer ring body in a rotating manner, the ball connecting grooves 13 and the reinforcing shaft connecting grooves 14 are both arranged on the supporting surface 12, the reinforcing shaft connecting grooves 14 are provided with two symmetrical grooves arranged on both sides of the ball connecting grooves 13, and the width of the ball connecting grooves 13 is more than twice the width of the reinforcing shaft connecting grooves 14.

Realize roll connection through ball 8 between inner ring body 1 and the outer ring body, ball 8 partly is located ball spread groove 13, can play the positioning action to ball 8 to a certain extent, prevents that ball 8 from taking place the removal along inner ring body 1 axial lead direction, can reduce the minimum distance between inner ring body 1 and the outer ring body 3 simultaneously, can do bearing overall dimension littleer.

As shown in figure 1, the two sides of the inner ring body 1 are both provided with the arc chamfers 25, and the arc chamfers 25 can play a role in buffering, so that the phenomenon that a shaft impacts the side surface of the inner ring body 1 to cause large impact on the whole bearing in the using process is prevented.

As shown in fig. 1, still including setting up at the inside lubricated pipeline 2 of inner ring body 1, lubricated pipeline 2 one end link up inner ring body 1 lateral wall, and the other end extends to and connects between face 11 and the axle journal, during the use, with the axle journal cooperation on connecting face 11 for connect face 11 and axle journal synchronous rotation in the use, after the use is accomplished, add lubricating oil to connecting between face 11 and the axle journal through lubricated pipeline 2, so the utility model discloses after the use is accomplished, usable lubricated pipeline 2 realizes connecting the lubrication between face 11 and the axle journal, has made things convenient for the dismouting between inner ring body 1 and the axle journal.

Referring to fig. 1 and 3, the lubricating pipeline 2 includes an oil inlet 21 penetrating through the side wall of the inner ring body 1 and an oil outlet 22 penetrating through the connecting surface 11, the oil outlet 22 communicates with the surface of the journal, the oil inlet 21 is communicated with the oil outlet 22, the lubricating pipeline further includes an oil distributing groove 23 which is arranged on the connecting surface 11 and is recessed towards the inside of the inner ring body 1, the oil outlet 22 is communicated with the bottom surface of the oil distributing groove 23, and when the journal is matched with the connecting surface 11, the journal covers the upper surface of the oil distributing groove 23.

When the lubricating oil lubrication device is used, lubricating oil is added from the oil inlet 21 and flows out from the oil outlet 22, and the oil distribution groove 23 lubricates a circle of journal covering the surface of the oil distribution groove 23, so that the journal can be lubricated uniformly in an annular mode, and the friction force between the journal and the inner ring body 1 is reduced.

Preferably, there is only one oil inlet 21, so that a pressure acting on the lubricating oil can be applied to the oil inlet 21 to increase the lubricating rate of the lubricating oil.

As shown in fig. 1, the lubricating ports 24 communicated with the oil distribution groove 23 are symmetrically arranged on both sides of the oil distribution groove 23, and the lubricating ports 24 extend along the axial line direction of the inner ring body 1, so that the lubricating oil in the oil distribution groove 23 can be infiltrated along the lubricating ports 24 along the axial line direction of the inner ring body 1, and the lubricating area is increased.

Preferably, the width of the lubricating port 24 is gradually reduced from the end close to the oil distributing groove 23 to the end far from the oil distributing groove, so that the lubricating oil can be greatly increased in the wetting rate along the axial center line of the inner ring body 1, especially under the pressurizing condition.

Preferably, the depth of the lubricating port 24 recessed into the inner ring body 1 is gradually reduced from one end close to the oil distribution groove 23 to one end far away from the oil distribution groove 23, especially under a pressurized condition, so that the lubricating speed of the lubricating oil along the axial lead direction of the inner ring body 1 can be greatly improved, namely, the lubricating device is provided with only one oil inlet 21, the lubricating speed of the lubricating oil can be increased by pressurization, and meanwhile, the lubricating speed of the lubricating oil can be further increased by the arrangement of the width and the depth of the lubricating port 24, and the disassembly and assembly efficiency is improved.

Preferably, the lubrication ports 24 are uniformly distributed along the circumference of the oil distribution groove 23, so that the uniformity of lubrication can be ensured.

As shown in connection with fig. 4-7, said balls 8 accomplish an even distribution between the inner ring body 1 and the outer ring body 3 by the following steps:

the method comprises the following steps: a ball feeding step, namely placing the inner ring body 1 and the outer ring body 3 on a processing seat 4, positioning a pre-separation mechanism 5 between the inner ring body 1 and the outer ring body 3, and adding a plurality of balls 8 between the inner ring body 1 and the outer ring body 3;

step two: a pre-separation step, namely driving a pre-separation mechanism 5 to enable the pre-separation mechanism 5 to move close to the processing seat 4 until the ball 8 is contacted with the surface of the pre-separation mechanism 5, and rotating the pre-separation mechanism 5 at a rotating speed of 60 revolutions per minute to drive the ball 8 to rotate;

step three: and in the separation step, the pre-separation mechanism 5 is driven to enable the pre-separation mechanism 5 to move away from the processing seat 4, so that the balls 8 are prevented from rolling in the separation process of the pre-separation mechanism 5 by using the separator 6, the separator 6 is driven to move close to the processing seat 4, and the balls 8 are clamped into the separation grooves 7 on the separator 6 to complete ball separation.

Therefore, the ball separating device is also provided with a step of pre-separating by the pre-separating mechanism 5 before separating balls by the separator 6, so that the balls 8 have a certain distance before accurate separation, thereby greatly improving the success rate of ball separation and ensuring higher production efficiency.

Referring to fig. 6 and 7, the pre-separating mechanism 5 includes a plurality of arc separating tiles 51 whose circle centers coincide with each other, different arc separating tiles 51 are drivingly connected to a driving shaft of the same driving mechanism, for example, the arc separating tiles 51 can be installed on the same rotating disk, so as to ensure the synchronism of rotation between each arc separating tile 51, the arc separating tiles 51 include a separating tile body 52, a side surface of the separating tile body 52 close to the processing seat 4 has a separating groove 53 recessed toward the inside of the separating tile body 52, and the surface of the separating tile body 52 is provided with the separating groove 53, which can better drive the balls 8, so as to realize the preliminary separation.

Preferably, the separation grooves 53 are provided with a plurality of groups, and each group of separation grooves 53 comprises three separation grooves 53 arranged in sequence, so that the probability that the balls 8 fall into the separation grooves 53 after the pre-separation is finished can be improved.

Preferably, the bottom of the separation groove 53 is arc-shaped, the radian of the separation groove is matched with the outer surface of the ball 8, and the depth of the separation groove 53 is greater than one forty times the diameter of the ball 8 and less than one tenth of the diameter of the ball 8, so that the acting force between the separation groove 53 and the ball 8 can be ensured to be in a proper range.

As shown in fig. 5, the separator 6 includes a separator main body 61 having a cylindrical shape, a driver is drivingly connected to the separator main body 61, one end of the separator main body 61 near the processing seat 4 extends along an axial line direction of the separator main body 61 with separating claws 62, the number of the separating claws 62 is the same as the number of the balls 8, a separating groove 7 is provided between two adjacent separating claws 62, the length of each two separating claws 62 is different, the length difference between the separating claw 62 having the longest length and the separating claw 62 having the shortest length is smaller than the diameter of the ball 8, because the ball 8 has been primarily separated and a certain distance exists between the adjacent balls 8, compared with the prior art, the time difference between the two adjacent separating claws 62 is smaller, that is, the length difference between the two adjacent separating claws is smaller, the length of the separating claw 62 of the present invention can be set to be shorter, the moving stroke of the separator 6 during ball separation process is reduced, the production time is shortened, and the production efficiency is improved.

Preferably, the lengths of the separating claws 62 are sequentially increased or decreased in the clockwise direction, and the lengths of the different separating claws 62 form an arithmetic progression, so that the uniformity of ball separation can be further ensured.

As shown in fig. 5, the bottom of the separation groove 7 is arc-shaped, and the radian of the separation groove is matched with the outer surface of the ball 8, so that the ball 8 is conveniently clamped in the separation groove 7, the end of the separation claw 62 is arc-shaped, and the end of the separation claw 62 is arc-shaped, so that the damage of the separation claw 62 to the ball 8 in the ball separating process is reduced, and the service life of the separator 6 can be prolonged.

Example 2

The present embodiment provides a ball bearing for a bearing inner ring side lubrication type axial pressure-bearing vehicle, which has a structure completely the same as that of the ball bearing described in embodiment 1, and is different only in a ball separating method, specifically including the following steps:

step two: a pre-separation step, namely driving a pre-separation mechanism 5 to enable the pre-separation mechanism 5 to move close to the processing seat 4 until the ball 8 is in contact with the surface of the pre-separation mechanism 5, and rotating the pre-separation mechanism 5 at a rotating speed of 50 revolutions per minute to drive the ball 8 to rotate;

Example 3

step two: a pre-separation step, namely driving a pre-separation mechanism 5 to enable the pre-separation mechanism 5 to move close to the processing seat 4 until the ball 8 is in contact with the surface of the pre-separation mechanism 5, and rotating the pre-separation mechanism 5 at a rotating speed of 40 revolutions per minute to drive the ball 8 to rotate;

Comparative example 1

1000 identical bearings to be assembled are respectively taken and numbered as a group A and a group B, the ball separating device in the prior art shown in figure 8 is adopted in the ball separating process of the group A, and the ball is separated through the following steps:

step A: a ball feeding step, namely placing the bearing inner ring and the bearing outer ring body on a processing seat, and adding a plurality of balls between the bearing inner ring and the bearing outer ring body;

and B: a separation step, namely driving the separator to move close to the processing seat, and clamping the balls into a separation groove on the separator to complete ball separation;

and after the separation is finished, counting the number of the bearings with the uniformly distributed balls and the number of the bearings with no obvious scratches on the surfaces of the balls.

The second component ball process was performed using the separator 6 of the present invention and the separation method described in example 1, and after the separation was completed, the number of bearings in which the balls were uniformly distributed and the number of bearings in which no obvious scratches were formed on the surfaces of the balls were counted, and the results are shown in the following table:

and (4) analyzing results: compared with the separation method in the prior art, the separation method provided by the invention obviously has better ball uniformity, and can obviously better avoid the balls from being damaged, thereby achieving the purpose of the invention.

Although terms such as the connecting head a, the base body b, the ball separating head c, the ball separating claw d, the inner ring body 1, the lubricating pipeline 2, the outer ring body 3, the machining seat 4, the pre-separating mechanism 5, the separator 6, the separating groove 7, the balls 8, the connecting surface 11, the supporting surface 12, the ball connecting groove 13, the reinforcing shaft connecting groove 14, the reinforcing shaft 15, the oil inlet 21, the oil outlet 22, the oil separating groove 23, the lubricating port 24, the arc chamfer 25, the arc separating tile 51, the separating tile body 52, the separating groove 53, the separator main body 61, the separating claw 62 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a lubricated formula axial pressure bearing automobile-used ball bearing in bearing inner ring side, includes inner ring body (1), outer loop body (3), a plurality of ball (8) and is used for keeping each ball (8) retainer (9) contactless each other, ball (8) are located between inner ring body (1) and outer loop body (3) and respectively with inner ring body (1) and outer loop body (3) roll connection, its characterized in that: the corresponding position of the surface of inner ring body (1) and the internal surface of outer loop body (3) is provided with ball spread groove (13) and reinforcing shaft connecting groove (14), and ball (8) roll connection is in ball spread groove (13), still including being columniform reinforcing shaft (15), reinforcing shaft (15) side is laminated with reinforcing shaft connecting groove (14) bottom surface mutually, and reinforcing shaft (15) bottom surface is laminated with reinforcing shaft connecting groove (14) side mutually.

2. The bearing inner ring side-lubricated axial pressure-bearing vehicular ball bearing according to claim 1, wherein: the utility model discloses a reinforcing shaft connecting structure, including inner ring body (1), inner ring body (1) internal surface be with axle journal matched with be connected face (11), inner ring body (1) surface be with outer ring body rotation be connected holding surface (12), ball connecting groove (13) and reinforcing shaft connecting groove (14) all set up on holding surface (12), reinforcing shaft connecting groove (14) have two and the symmetry set up in ball connecting groove (13) both sides, the width of ball connection (13) is more than the twice of reinforcing shaft connecting groove (14) width.

3. The bearing inner ring side-lubricated axial pressure-bearing vehicular ball bearing according to claim 2, wherein: the lubricating device is characterized by further comprising a lubricating pipeline (2) arranged inside the inner ring body (1), one end of the lubricating pipeline (2) penetrates through the side wall of the inner ring body (1), and the other end of the lubricating pipeline extends to a position between the connecting surface (11) and the shaft neck.

4. The bearing inner ring side-lubricated axial pressure-bearing vehicular ball bearing according to claim 3, wherein: lubrication line (2) is including oil inlet (21) and the oil-out (22) of link up connection face (11) that link up inner ring body (1) lateral wall, oil-out (22) intercommunication axle journal surface, oil inlet (21) are linked together with oil-out (22), lubrication line (2) still including set up on connecting face (11) and towards inner ring body (1) inside sunken branch oil groove (23), oil-out (22) are linked together with branch oil groove (23) bottom surface, and when the axle journal matches with connecting face (11), the axle journal covers in branch oil groove (23) upper surface, oil inlet (21) have and only one.

5. The bearing inner ring side-lubricated axial pressure-bearing vehicular ball bearing according to claim 4, wherein: the lubricating ports (24) communicated with the oil distributing grooves (23) are symmetrically arranged on two sides of the oil distributing grooves (23), and the lubricating ports (24) extend along the axial lead direction of the inner ring body (1).

6. The bearing inner ring side-lubricated axial pressure-bearing vehicular ball bearing according to claim 5, wherein: the width of lubrication mouth (24) is by the one end that is close to branch oil groove (23) to keeping away from the one end of dividing the oil groove and reducing gradually, the degree of depth that lubrication mouth (24) are sunken to go into inner ring body (1) is by the one end that is close to branch oil groove (23) to keeping away from the one end of dividing oil groove (23) and reducing gradually, lubrication mouth (24) are along dividing oil groove (23) border circumference evenly distributed.

7. The bearing inner ring side-lubricated axial pressure-bearing vehicular ball bearing according to claim 1, wherein: the balls (8) are uniformly distributed between the inner ring body (1) and the outer ring body (3) by the following steps:

the method comprises the following steps: a ball feeding step, namely placing the inner ring body (1) and the outer ring body (3) on a processing seat (4), positioning a pre-separation mechanism (5) between the inner ring body (1) and the outer ring body (3), and adding a plurality of balls (8) between the inner ring body (1) and the outer ring body (3);

step two: a pre-separation step, namely driving a pre-separation mechanism (5) to enable the pre-separation mechanism (5) to move close to the processing seat (4) until the ball (8) is contacted with the surface of the pre-separation mechanism (5), and rotating the pre-separation mechanism (5) to drive the ball (8) to rotate;

step three: and a separation step, namely driving the pre-separation mechanism (5) to enable the pre-separation mechanism (5) to move away from the processing seat (4), driving the separator (6) to move close to the processing seat (4), and clamping the balls (8) into the separation grooves (7) on the separator (6) to complete ball separation.

8. The bearing inner ring side-lubricated axial pressure-bearing vehicular ball bearing according to claim 7, wherein: pre-separating mechanism (5) include arc separation tile (51) that a plurality of centre of a circle coincide each other, different arc separation tile (51) are connected with same actuating mechanism's drive shaft drive, and arc separation tile (51) are including separating tile body (52), a side surface that separating tile body (52) are close to processing seat (4) has separation recess (53) to separating tile body (52) inside sunken, separation recess (53) are equipped with a plurality of groups, and every group separation recess (53) include three separation recess (53) that set gradually.

9. The bearing inner ring side-lubricated axial pressure-bearing vehicular ball bearing according to claim 7, wherein: separator (6) are including being columniform separator main part (61), and the driver is connected with separator main part (61) drive, separator main part (61) are close to the one end of processing seat (4) and extend along separator main part (61) axial lead direction and have separation claw (62), separation claw (62) quantity is the same with ball (8) quantity, has separation recess (7) between two adjacent separation claws (62), separation recess (7) bottom is arc and radian and ball (8) surface looks adaptation, separation claw (62) tip is arc.

10. The bearing inner ring side-lubricated axial pressure-bearing vehicular ball bearing according to claim 9, wherein: the lengths of the separating claws (62) are sequentially increased or decreased along the clockwise direction, the lengths of different separating claws (62) form an equal difference array, and the length difference between the separating claw (62) with the longest length and the separating claw (62) with the shortest length is smaller than the diameter of the ball (8).