CN215634458U

CN215634458U - Hub bearing with splines

Info

Publication number: CN215634458U
Application number: CN202121681812.9U
Authority: CN
Inventors: 胡晟; 胡世雄
Original assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2022-01-25
Anticipated expiration: 2031-07-22

Abstract

The utility model discloses a hub bearing with splines, which comprises a rotary connector, a flange inner ring, a flange outer ring and a connecting inner ring, a first rolling groove is arranged between the outer wall of the flange inner ring and the flange outer ring, a positioning step is also formed on the flange inner ring, the connecting inner ring is clamped with the positioning step, a second rolling groove is formed between the outer wall of the connecting inner ring and the outer ring of the flange, rolling bodies are arranged in the first rolling groove and the second rolling groove, a positioning bulge is formed at one end of the flange inner ring facing the rotary connector, a positioning groove is arranged on the inner wall of the flange inner ring, the positioning bulge is in clearance fit with the positioning groove, the contact surface of the flange inner ring and the rotary connector is a conical surface, a plurality of connecting teeth are uniformly distributed on the conical surface, the end part of the rotary connector is provided with a contact surface, the contact surface is provided with a plurality of clamping teeth, and the connecting teeth are clamped with the clamping teeth. The structure is compact, the whole mass and weight are lower, the installation precision is high, and the power transmission is stable.

Description

Hub bearing with splines

Technical Field

The utility model relates to the technical field of hub bearings.

Background

The hub bearings of the drive wheels are typically connected to the vehicle drive element, i.e. the ball cage shaft, using pairs of internal and external splines to effect the transfer of vehicle power. Traditional wheel hub bearing connected mode is provided with longer spline usually, and difficult processing and assembly are more difficult to and because the difficulty of processing assembly makes wearing and tearing appear more easily in the use, influences overall structure's life, and can appear the clearance usually between ball cage axle and the wheel hub bearing at the vehicle operation in-process, makes vehicle driving element and wheel hub for the axis of rotation disalignment, produces easily and starts abnormal sound, power transmission inequality scheduling problem.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the hub bearing with the spline, which has the advantages of compact structure, lower overall mass and weight, high installation precision and stable power transmission.

In order to achieve the above purpose, the utility model provides a hub bearing with a spline, which comprises a rotary connector, a flange inner ring, a flange outer ring and a connecting inner ring, wherein a first raceway is arranged on the outer wall of the flange inner ring, a second raceway is arranged on the flange outer ring corresponding to the first raceway, the first raceway and the second raceway are combined to form a first rolling groove, a positioning step is further formed on the flange inner ring, the connecting inner ring is clamped with the positioning step, a third raceway is arranged on the outer wall of the connecting inner ring, a fourth raceway is arranged on the flange outer ring corresponding to the third raceway, the third raceway and the fourth raceway are combined to form a second rolling groove, rolling bodies are arranged in the first rolling groove and the second rolling groove, a positioning bulge is formed at one end of the flange inner ring facing the rotary connector, and a positioning groove is formed on the inner wall of the flange inner ring, the location is protruding and constant head tank clearance fit, the contact surface of flange inner circle and swivelling joint head sets up to the toper face, the equipartition has a plurality of connection teeth on the toper face, swivelling joint head tip is formed with the conflict face that is used for with toper face looks adaptation, be provided with a plurality of latches on the contact surface, connect tooth and latch joint setting.

The beneficial effect who so sets up is: with this arrangement, the spline contact surface can be tightened with a higher torque than in the conventional paired internal spline connection. The tooth surface of the connecting tooth is set to be a conical surface, so that a larger meshing area can be brought, and the transmission efficiency is higher. Further extension line of connecting tooth and latch meshing department tooth all hands over on the bearing axis, can greatly increase its self-centering performance, make whole higher with rotary joint cooperation precision, can eliminate the abnormal sound problem that traditional internal spline appears easily, the pitch circle diameter of connecting the tooth as preferred is equivalent with the rotary joint diameter, and compare with traditional internal spline, rotary joint's dabber is shorter, holistic quality is lighter, be favorable to reducing the vehicle quality, improve vehicle driveability, simultaneously because the quality is lighter, help improving vehicle fuel economy. Meanwhile, the spline structure of the connecting teeth is simpler, the assembly difficulty is simplified, and the connecting teeth are easier to maintain. Simultaneously, the positioning bulge is matched with the positioning groove, so that the installation and positioning of the integral structure are facilitated, the structure is simple, the production and processing efficiency is improved, and the using effect of the integral structure is effectively improved.

As a further arrangement of the utility model, the connecting teeth are connected with the inner wall of the inner ring of the flange through smooth arc-shaped surfaces, and the arc-shaped surfaces are gradually narrowed from the direction close to the inner wall of the inner ring of the flange to the direction far away from the inner wall of the inner ring of the flange.

The beneficial effect who so sets up is: set up like this, have guide positioning's effect when making whole equipment through the arcwall face, improve production machining efficiency, simple structure is convenient for production and processing simultaneously.

As a further arrangement of the utility model, a connecting convex rib and a connecting groove are arranged between the positioning bulge and the positioning groove, and the connecting convex rib is in splicing fit with the connecting groove.

The beneficial effect who so sets up is: set up like this for flange inner circle is more stable with being connected of swivelling joint head, and the transmission is more high-efficient, and simple structure does benefit to the realization simultaneously.

As a further arrangement of the utility model, an isolation groove is formed between the positioning bulge and the latch.

The beneficial effect who so sets up is: set up like this, through the isolation groove structure, can help the control of flank of tooth processing cutter, simultaneously, can effectively avoid the interference that appears when assembling with flange inner circle location arch, receive the load in-process in the operation simultaneously, can effectively reduce the stress concentration that produces after the atress, effectively improve overall structure's result of use and stability in use.

As a further arrangement of the utility model, a first sealing check ring is arranged between the flange outer ring and the connecting inner ring, and a second sealing check ring is arranged between the flange inner ring and the flange outer ring.

The beneficial effect who so sets up is: the sealing effect of the whole structure is guaranteed by the arrangement, and meanwhile, the sealing device is simple in structure and has a good using effect.

Drawings

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

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a front view of an inner ring of a flange in an embodiment of the present invention.

Detailed Description

An embodiment of the splined hub bearing of the present invention is shown in fig. 1-3: the flange inner ring comprises a rotary connector 4, a flange inner ring 1, a flange outer ring 2 and a connecting inner ring 3, wherein a first rolling way is arranged on the outer wall of the flange inner ring 1, a second rolling way is arranged on the flange outer ring 2 corresponding to the first rolling way, a first rolling groove is formed by combining the first rolling way and the second rolling way, a positioning step is further formed on the flange inner ring 1, the connecting inner ring 3 is clamped with the positioning step, a third rolling way is arranged on the outer wall of the connecting inner ring 3, a fourth rolling way is arranged on the flange outer ring 2 corresponding to the third rolling way, a second rolling groove is formed by combining the third rolling way and the fourth rolling way, rolling bodies 5 are arranged in the first rolling groove and the second rolling groove, a positioning bulge 41 is formed at one end of the flange inner ring 1 facing the rotary connector 4, a positioning groove is arranged on the inner wall of the flange inner ring 1, and the positioning bulge 41 is in clearance fit with the positioning groove, the contact surface of flange inner circle 1 and swivelling joint head 4 sets up to the toper face, the equipartition has a plurality of engaging teeth 11 on the toper face, 4 tip of swivelling joint head be formed with be used for with the conflict face of toper face looks adaptation, be provided with a plurality of latches 42 on the contact surface, engaging teeth 11 sets up with latch 42 joint. The beneficial effect who so sets up is: with this arrangement, the spline contact surface can be tightened with a higher torque than in the conventional paired internal spline connection. The tooth surface of the connecting tooth 11 is arranged to be a conical surface, so that a larger meshing area can be brought, and the transmission efficiency is higher. Further extension line of connecting tooth 11 and latch 42 meshing department tooth all hands over on the bearing axis, can greatly increase its from centering performance, it is higher to make wholly with rotary joint cooperation precision, can eliminate the abnormal sound problem that traditional internal spline appears easily, the pitch circle diameter of connecting tooth 11 as preferred is equivalent with the rotary joint diameter, and compare with traditional internal spline, rotary joint's dabber is shorter, holistic quality is lighter, be favorable to reducing the vehicle quality, improve vehicle driveability, simultaneously because the quality is lighter, help improving vehicle fuel economy. Meanwhile, the end face spline is simpler in structure, the assembly difficulty is simplified, and the maintenance is easier. Meanwhile, the positioning bulge 41 is matched with the positioning groove, so that the mounting and positioning of the integral structure are facilitated, the structure is simple, the production and processing efficiency is improved, and the using effect of the integral structure is effectively improved.

As a further arrangement of the present invention, the connecting teeth 11 are connected with the inner wall of the flange inner ring 1 through a smooth arc-shaped surface 111, and the arc-shaped surface 111 is gradually narrowed from the direction close to the inner wall of the flange inner ring 1 to the direction far from the inner wall of the flange inner ring 1. The beneficial effect who so sets up is: set up like this, have guide positioning's effect when making whole equipment through arcwall face 111, improve production machining efficiency, simple structure is convenient for production and processing simultaneously.

As a further arrangement of the present invention, a connecting convex rib and a connecting groove are arranged between the positioning protrusion 41 and the positioning groove, and the connecting convex rib and the connecting groove are in insertion fit. The beneficial effect who so sets up is: set up like this for flange inner circle 1 is more stable with being connected of swivelling joint head 4, and the transmission is more high-efficient, and simple structure does benefit to the realization simultaneously.

As a further arrangement of the present invention, a separation groove 43 is formed between the positioning protrusion 41 and the latch 42. The beneficial effect who so sets up is: set up like this, through the isolation groove 43 structure, can help the control of flank of tooth processing cutter, simultaneously, can effectively avoid the interference that appears when protruding 41 assembles with flange inner circle 1 location, receive the load in-process in the operation simultaneously, can effectively reduce the stress concentration that produces after the atress, effectively improve overall structure's result of use and stability in use.

As a further arrangement of the present invention, a first sealing retainer ring 6 is arranged between the flange outer ring 2 and the connecting inner ring 3, and a second sealing retainer ring 7 is arranged between the flange inner ring 1 and the flange outer ring 2. The beneficial effect who so sets up is: the sealing effect of the whole structure is guaranteed by the arrangement, and meanwhile, the sealing device is simple in structure and has a good using effect.

The above example is only one of the preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.

Claims

1. The utility model provides a wheel hub bearing with spline, includes swivelling joint head, flange inner circle, flange outer lane and connects the inner circle, be provided with first raceway on the flange inner circle outer wall, the flange outer lane corresponds first raceway position and is provided with the second raceway, first raceway and the combination of second raceway form first slot rolling, its characterized in that: the flange inner ring is also provided with a positioning step, the connecting inner ring is clamped with the positioning step, a third roller path is arranged on the outer wall of the connecting inner ring, a fourth roller path is arranged on the outer ring of the flange corresponding to the third roller path, the third rolling path and the fourth rolling path are combined to form a second rolling groove, rolling bodies are arranged in the first rolling groove and the second rolling groove, a positioning bulge is formed at one end of the flange inner ring facing the rotary connector, a positioning groove is arranged on the inner wall of the flange inner ring, the positioning bulge is in clearance fit with the positioning groove, the contact surface of the flange inner ring and the rotary connector is a conical surface, the equipartition has a plurality of connection teeth on the conical surface, the swivelling joint head tip is formed with the conflict face that is used for with conical surface looks adaptation, be provided with a plurality of latches on the contact surface, connect tooth and latch joint setting.

2. The splined hub bearing of claim 1, wherein: the connecting teeth are connected with the inner wall of the flange inner ring through smooth arc-shaped surfaces, and the arc-shaped surfaces are gradually narrowed from the direction close to the inner wall of the flange inner ring to the direction far away from the inner wall of the flange inner ring.

3. The splined hub bearing of claim 1 or 2, wherein: the positioning device is characterized in that a connecting convex rib and a connecting groove are arranged between the positioning protrusion and the positioning groove, and the connecting convex rib is in inserting fit with the connecting groove.

4. The splined hub bearing of claim 3, wherein: an isolation groove is formed between the positioning protrusion and the clamping tooth.

5. The splined hub bearing of claim 1, wherein: a first sealing check ring is arranged between the flange outer ring and the connecting inner ring, and a second sealing check ring is arranged between the flange inner ring and the flange outer ring.