CN202719041U - Cross shaft universal joint bearing - Google Patents

Cross shaft universal joint bearing Download PDF

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Publication number
CN202719041U
CN202719041U CN 201220450129 CN201220450129U CN202719041U CN 202719041 U CN202719041 U CN 202719041U CN 201220450129 CN201220450129 CN 201220450129 CN 201220450129 U CN201220450129 U CN 201220450129U CN 202719041 U CN202719041 U CN 202719041U
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China
Prior art keywords
groove
rolling
cylindrical
internal diameter
film trap
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CN 201220450129
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Chinese (zh)
Inventor
贾虹霞
何金光
贾秋生
王多亮
于清成
谭云柱
殷明
张益军
马兴海
张守庆
张庆秋
马洪全
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Harbin Bearing Group Ltd.
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AVIC Harbin Bearing Co Ltd
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Priority to CN 201220450129 priority Critical patent/CN202719041U/en
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Abstract

The utility model discloses a cross shaft universal joint bearing, relates to a universal joint bearing, and aims at solving the problems of sintering of a bearing, wear-out failure of an end cover and over-high temperature rise of the bearing, wherein the problems are caused by an unreasonable greasing method for the existing cross shaft universal joint bearing, and the problem that a bearing grease separation sheet is easily worn down due to the fact that rolling elements are not provided with guide lips is also solved. Transition annuluses between the bottom end surface of a grease separation sheet groove and a rolling element groove are first annular guide lips, and transition annuluses between the rolling element groove and a sealing washer groove are second annular guide lips. A first threaded hole is arranged in the position of an axis between the bottom end surface of a flange inner hole and the bottom end surface of the grease separation sheet groove. A grease separation sheet is arranged in the grease separation sheet groove and is provided with a grease separation hole communicated with the first threaded hole. A plurality of rolling elements are evenly arranged at the position of the inner wall of the rolling element groove along the same circumference. Sealing washers are arranged in the sealing washer groove, and a sealing ring is arranged at the outer end of each sealing washer and clings to the position of the end surface of a cylinder. The cross shaft universal joint bearing is used on a cross shaft between a motor end and a gear case of a China railways high-speed 5 (CRH5) type bullet train.

Description

The cross-axle universal shaft bearings
Technical field
The utility model relates to a kind of universal joint bearing, is specifically related to a kind of cross-axle universal shaft bearings.
Background technique
Motor-car CRH5 type car is through the operation more than 3 years, and overall state is good.Cardan shaft is the vitals that motor is connected with gear-box.The motor side cross axle has protective housing, does not produce collision with the external world, but narrow space maintenance greasing is inconvenient.Gear-box cross axle head is overhead nearer, unshielded, and the stone that is flown up easily hits, but keeps in repair greasing conveniently.The structure of existing cross-axle universal shaft bearings is that four bearing arrangements are on cross axle, the greasing of four bearings is to carry out greasing in the middle of crossed universal shaft, enter bearing by the cross oil duct, because China's environment is poor, comprising that dust, temperature span, the speed of a motor vehicle are high causes when middle when concentrating greasing, pressure bearing in four bearings goes out first grease, its excess-three individual can not change oil fat, both the overflow characteristic of liquid; When its excess-three bearing can not in time be changed fat, bearing with very fast sintering, wear of end cover lost efficacy, too high, the locking of bearing temperature rise, transmission shaft will rupture, the fracture rear axle can support to upper train is propped up of road pillow and turn over.In addition, the rolling element of existing cross-axle universal shaft bearings is without guiding rib (being that rolling element directly contacts with splitter), cause the bearing splitter to wear and tear after, rolling element is without guiding, can make the bearing locking equally and causes overturning.
The model utility content
The purpose of this utility model is unreasonable for solving the grease injecting mode that has the cross-axle universal shaft bearings now, cause easily bearing sintering, wear of end cover inefficacy, too high, the locking of bearing temperature rise, and rolling element is without the guiding rib, bearing divides oily sheet easy to wear, the problem that defects can cause train to overturn, and a kind of cross-axle universal shaft bearings is provided.
The purpose of this utility model is achieved through the following technical solutions:
Technological scheme one: the utility model comprises the outer ring, seal ring, seal ring, grease splitter and several rolling elements, described outer ring is made of all-in-one-piece cylindrical body processed and frustoconic shape flange, the frustoconic shape flange is positioned at the center of a cylindrical side end face, and the larger diameter end of frustoconic shape flange is towards cylindrical body, be processed with successively a minute oily film trap by the frustoconic shape flange to the cylindrical body direction in the cylindrical body, the rolling element groove, transition slot and seal groove, and minute oily film trap, the rolling element groove, transition slot and seal groove communicate, the internal diameter of rolling element groove equates with the internal diameter of seal groove, the internal diameter of the shunting internal diameter of film trap and transition slot is all less than the internal diameter of rolling element groove, dividing bottom end and the transition annular between the rolling element groove of oily film trap is the first pessum rib, transition annular between rolling element groove and the seal groove is the second pessum rib, place, described frustoconic shape flange axle center is provided with the flange endoporus, the bottom end of flange endoporus to the place, axle center between the bottom end of minute oily film trap is provided with the first tapped hole, the grease splitter is arranged in minute oily film trap, the grease splitter is provided with minute oilhole that communicates with the first tapped hole, several rolling elements are arranged on the inwall place of rolling element groove along same circumference uniform distribution, seal ring is arranged in the seal groove, and seal ring is arranged on the outer end of seal ring and abuts in the cylindrical body end.
Technological scheme two: the utility model comprises the outer ring, seal ring, seal ring, grease splitter and several rolling elements, described outer ring is made of all-in-one-piece cylindrical body processed and cylindrical flange, cylindrical flange is positioned at the center of a cylindrical side end face, be processed with successively a minute oily film trap by cylindrical flange to the cylindrical body direction in the cylindrical body, the rolling element groove, transition slot and seal groove, and minute oily film trap, the rolling element groove, transition slot and seal groove communicate, the internal diameter of rolling element groove equates with the internal diameter of seal groove, the internal diameter of the shunting internal diameter of film trap and transition slot is all less than the internal diameter of rolling element groove, dividing bottom end and the transition annular between the rolling element groove of oily film trap is the first pessum rib, transition annular between rolling element groove and the seal groove is the second pessum rib, the bottom end of described minute oily film trap to place, the axle center between the end face of cylindrical flange is provided with the second tapped hole, the grease splitter is arranged in minute oily film trap, the grease splitter is provided with minute oilhole that communicates with the second tapped hole, several rolling elements are arranged on the inwall place of rolling element groove along same circumference uniform distribution, seal ring is arranged in the seal groove, and seal ring is arranged on the outer end of seal ring and abuts in the cylindrical body end.
Compared with the prior art the utility model has following beneficial effect:
One, the utility model is single cover bearing with the Hooke's joint design bearing, and open the greasing mouth in the bearing rear end, realize oiling with the individual event lubricating cup, replace original concentrated grease injecting mode to improve lubricating condition with independent grease injecting mode, grease channel is unimpeded, has guaranteed that rolling element 4 has enough apron spaces, reduce friction, reduce temperature rise, therefore, avoided that bearing sintering, wear of end cover lost efficacy, bearing temperature rise is too high, the phenomenon of locking; The utility model has also designed dual boot rib (i.e. the first guiding rib 1-5 and the second guiding rib 1-6), rolling element 4 is between the first guiding rib 1-5 and the second guiding rib 1-6, rolling element 4 does not contact with grease splitter 5, guarantee that grease stores and shunting effect, after 5 wearing and tearing of grease splitter, rolling element can turn round under the guiding of the first guiding rib 1-5, so that not locking of bearing; Thereby avoided the train overturn accident.
Two, 1 rear end end face has designed flange 1-8 to the utility model in the outer ring, and flange 1-8 is that the greasing mouth has played protective action, prevents that the stone that the greasing mouth is flown up in the motor-car running from hitting damage.So that oil nozzle is axially easy for installation, prevent that the stone that the greasing mouth is flown up from hitting damage in the motor-car running.
Three, seal ring 2 of the present utility model externally encloses with seal ring 3 and has formed two seals.
Description of drawings
Fig. 1 is overall structure master's sectional view of cross-axle universal shaft bearings in the utility model embodiment one, Fig. 2 is the I partial enlarged drawing of Fig. 1, Fig. 3 is the main sectional view of outer ring 1 in the embodiment one, Fig. 4 is overall structure master's sectional view of cross-axle universal shaft bearings in the embodiment three, Fig. 5 is the II partial enlarged drawing of Fig. 4, and Fig. 6 is the main sectional view of outer ring 1 in the embodiment three.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1~Fig. 3, present embodiment comprises the outer ring, seal ring 2, seal ring 3, grease splitter 5 and several rolling elements 4, described outer ring is made of all-in-one-piece cylindrical body 1 processed and frustoconic shape flange 6, frustoconic shape flange 6 is positioned at the center of a side end face of cylindrical body 1, and the larger diameter end of frustoconic shape flange 6 is towards cylindrical body 1, be processed with successively a minute oily film trap 1-1 by frustoconic shape flange 6 to cylindrical body 1 direction in the cylindrical body 1, rolling element groove 1-2, transition slot 1-3 and seal groove 1-4, and minute oily film trap 1-1, rolling element groove 1-2, transition slot 1-3 and seal groove 1-4 communicate, the internal diameter of rolling element groove 1-2 equates with the internal diameter of seal groove 1-4, the internal diameter of shunting film trap 1-1 and the internal diameter of transition slot 1-3 are all less than the internal diameter of rolling element groove 1-2, dividing bottom end and the transition annular between the rolling element groove 1-2 of oily film trap 1-1 is the first pessum rib 1-5, transition annular between rolling element groove 1-2 and the seal groove 1-4 is the second pessum rib 1-6, place, described frustoconic shape flange 6 axle center is provided with flange endoporus 6-1, the bottom end of flange endoporus 6-1 to the place, axle center between the bottom end of minute oily film trap 1-1 is provided with the first tapped hole 1-7, grease splitter 5 is arranged among minute oily film trap 1-1, grease splitter 5 is provided with minute oilhole 5-1 that communicates with the first tapped hole 1-7, several rolling elements 4 are arranged on the inwall place of rolling element groove 1-2 along same circumference uniform distribution, seal ring 2 is arranged among the seal groove 1-4, and seal ring 3 is arranged on the outer end of seal ring 2 and abuts in cylindrical body 1 end.The first tapped hole 1-7 and separation pad endoporus 5-1 are the greasing mouth; The first tapped hole 1-7 is used for tightening oil gun; Frustoconic shape flange 6 is used for the axial installation of oil nozzle, so that greasing is convenient, existing cross-axle universal shaft bearings does not have flange, and stone is destroyed pump nozzle easily, and 6 pairs of pump nozzles of frustoconic shape flange play a protective role.Grease splitter 5 is evenly shunted grease.The first guiding rib 1-5 and the second guiding rib 1-6 consist of two lip-guided structures, so that rolling element 4 possesses good guiding, lubricated and rolling characteristics, rolling element 4 does not contact with grease splitter 5, guarantees that grease stores and shunting effect.
Embodiment two: in conjunction with Fig. 1 present embodiment is described, the internal diameter of the transition slot 1-3 of present embodiment is less than the internal diameter of minute oily film trap 1-1, and namely the internal diameter of the second guiding rib 1-6 is less than the internal diameter of the first guiding rib 1-5.Other composition and annexation are identical with embodiment one.
Embodiment three: in conjunction with Fig. 1 and Fig. 3 present embodiment is described, the internal diameter of the flange endoporus 6-1 of present embodiment is greater than 2~3 times of the nominal diameters of the first tapped hole 1-7.Other composition and annexation are identical with embodiment one.
Embodiment four: present embodiment is described in conjunction with Fig. 4~Fig. 6, present embodiment comprises the outer ring, seal ring 2, seal ring 3, grease splitter 5 and several rolling elements 4, described outer ring is made of all-in-one-piece cylindrical body 1 processed and cylindrical flange 7, cylindrical flange 7 is positioned at the center of a side end face of cylindrical body 1, be processed with successively a minute oily film trap 1-1 by cylindrical flange 7 to cylindrical body 1 direction in the cylindrical body 1, rolling element groove 1-2, transition slot 1-3 and seal groove 1-4, and minute oily film trap 1-1, rolling element groove 1-2, transition slot 1-3 and seal groove 1-4 communicate, the internal diameter of rolling element groove 1-2 equates with the internal diameter of seal groove 1-4, the internal diameter of shunting film trap 1-1 and the internal diameter of transition slot 1-3 are all less than the internal diameter of rolling element groove 1-2, dividing bottom end and the transition annular between the rolling element groove 1-2 of oily film trap 1-1 is the first pessum rib 1-5, transition annular between rolling element groove 1-2 and the seal groove 1-4 is the second pessum rib 1-6, the bottom end of described minute oily film trap 1-1 to place, the axle center between the end face of cylindrical flange 7 is provided with the second tapped hole 1-8, grease splitter 5 is arranged among minute oily film trap 1-1, grease splitter 5 is provided with minute oilhole 5-1 that communicates with the second tapped hole 1-8, several rolling elements 4 are arranged on the inwall place of rolling element groove 1-2 along same circumference uniform distribution, seal ring 2 is arranged among the seal groove 1-4, and seal ring 3 is arranged on the outer end of seal ring 2 and abuts in cylindrical body 1 end.The second tapped hole 1-8 and separation pad endoporus 5-1 are the greasing mouth; The second tapped hole 1-8 is used for tightening oil gun; Cylindrical flange 7 is used for the axial installation of oil nozzle, so that greasing is convenient, existing cross-axle universal shaft bearings does not have flange, and stone is destroyed pump nozzle easily, and 7 pairs of pump nozzles of cylindrical flange play a protective role.Grease splitter 5 is evenly shunted grease.The first guiding rib 1-5 and the second guiding rib 1-6 consist of two lip-guided structures, so that rolling element 4 possesses good guiding, lubricated and rolling characteristics, rolling element 4 does not contact with grease splitter 5, guarantees that grease stores and shunting effect.
Embodiment five: in conjunction with Fig. 6 present embodiment is described, the internal diameter of the transition slot 1-3 of present embodiment is less than the internal diameter of minute oily film trap 1-1, and namely the internal diameter of the second guiding rib 1-6 is less than the internal diameter of the first guiding rib 1-5.Other composition and annexation are identical with embodiment four.
Working principle of the present utility model:
Outer ring 1 cooperates with bearing support or hole plays fixation to bearing, rolling element 4 bearing loads, transmitted load, grease splitter 5 can store and shunting grease, and seal ring 2 is by forming sealing with cooperating of axle, and seal ring 3 cooperates with seal ring 2 outer ring 1 formation two seals.
Manufacturing process flow of the present utility model:
1, the processing of outer ring 1: GCr15 hot rolling material -forging molding,, the thin car profile-tapping of the annealing-rough turn profile-numerical control-tempering heat treatment of quenching-local induction annealing-alter light descale-corase grind-pickling burn checks-hard car divides that oily film trap 1-1, rolling element groove 1-2, transition slot 1-3 and seal groove 1-4-stress relief annealing-fine grinding-pickling burn checks, magnetic particle testing.
2, trap: aobvious word-cleanings of chemistry-raceway diameter sorting-dress divides oily sheet-fat liquoring, fills rolling element-calibrates to play-press-fit seal ring-dress seal ring-packing.

Claims (5)

1. cross-axle universal shaft bearings, described bearing comprises the outer ring, seal ring (2), seal ring (3), grease splitter (5) and several rolling elements (4), it is characterized in that: described outer ring is made of all-in-one-piece cylindrical body processed (1) and frustoconic shape flange (6), frustoconic shape flange (6) is positioned at the center of a side end face of cylindrical body (1), and the larger diameter end of frustoconic shape flange (6) is towards cylindrical body (1), be processed with successively a minute oily film trap (1-1) by frustoconic shape flange (6) to cylindrical body (1) direction in the cylindrical body (1), rolling element groove (1-2), transition slot (1-3) and seal groove (1-4), and minute oily film trap (1-1), rolling element groove (1-2), transition slot (1-3) and seal groove (1-4) communicate, the internal diameter of rolling element groove (1-2) equates with the internal diameter of seal groove (1-4), the internal diameter of shunting film trap (1-1) and the internal diameter of transition slot (1-3) are all less than the internal diameter of rolling element groove (1-2), dividing bottom end and the transition annular between the rolling element groove (1-2) of oily film trap (1-1) is the first pessum rib (1-5), transition annular between rolling element groove (1-2) and the seal groove (1-4) is the second pessum rib (1-6), place, described frustoconic shape flange (6) axle center is provided with flange endoporus (6-1), the bottom end of flange endoporus (6-1) to the place, axle center between the bottom end of minute oily film trap (1-1) is provided with the first tapped hole (1-7), grease splitter (5) is arranged in minute oily film trap (1-1), grease splitter (5) is provided with minute oilhole (5-1) that communicates with the first tapped hole (1-7), several rolling elements (4) are arranged on the inwall place of rolling element groove (1-2) along same circumference uniform distribution, seal ring (2) is arranged in the seal groove (1-4), and seal ring (3) is arranged on the outer end of seal ring (2) and abuts in cylindrical body (1) end.
2. described cross-axle universal shaft bearings according to claim 1, it is characterized in that: the internal diameter of described transition slot (1-3) is less than the internal diameter of minute oily film trap (1-1).
3. described cross-axle universal shaft bearings according to claim 1 and 2 is characterized in that: the internal diameter of described flange endoporus (6-1) is greater than 2~3 times of the nominal diameters of the first tapped hole (1-7).
4. cross-axle universal shaft bearings, described bearing comprises the outer ring, seal ring (2), seal ring (3), grease splitter (5) and several rolling elements (4), it is characterized in that: described outer ring is made of all-in-one-piece cylindrical body processed (1) and cylindrical flange (7), cylindrical flange (7) is positioned at the center of a side end face of cylindrical body (1), be processed with successively a minute oily film trap (1-1) by cylindrical flange (7) to cylindrical body (1) direction in the cylindrical body (1), rolling element groove (1-2), transition slot (1-3) and seal groove (1-4), and minute oily film trap (1-1), rolling element groove (1-2), transition slot (1-3) and seal groove (1-4) communicate, the internal diameter of rolling element groove (1-2) equates with the internal diameter of seal groove (1-4), the internal diameter of shunting film trap (1-1) and the internal diameter of transition slot (1-3) are all less than the internal diameter of rolling element groove (1-2), dividing bottom end and the transition annular between the rolling element groove (1-2) of oily film trap (1-1) is the first pessum rib (1-5), transition annular between rolling element groove (1-2) and the seal groove (1-4) is the second pessum rib (1-6), described minute oily film trap (1-1) bottom end to the axle center between the end face of cylindrical flange (7) place be provided with the second tapped hole (1-8), grease splitter (5) is arranged in minute oily film trap (1-1), grease splitter (5) is provided with minute oilhole (5-1) that communicates with the second tapped hole (1-8), several rolling elements (4) are arranged on the inwall place of rolling element groove (1-2) along same circumference uniform distribution, seal ring (2) is arranged in the seal groove (1-4), and seal ring (3) is arranged on the outer end of seal ring (2) and abuts in cylindrical body (1) end.
5. described cross-axle universal shaft bearings according to claim 4, it is characterized in that: the internal diameter of described transition slot (1-3) is less than the internal diameter of minute oily film trap (1-1).
CN 201220450129 2012-09-05 2012-09-05 Cross shaft universal joint bearing Active CN202719041U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220450129 CN202719041U (en) 2012-09-05 2012-09-05 Cross shaft universal joint bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220450129 CN202719041U (en) 2012-09-05 2012-09-05 Cross shaft universal joint bearing

Publications (1)

Publication Number Publication Date
CN202719041U true CN202719041U (en) 2013-02-06

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102817928A (en) * 2012-09-05 2012-12-12 中航工业哈尔滨轴承有限公司 Cross axle universal joint bearing
CN108930717A (en) * 2017-05-23 2018-12-04 斯凯孚公司 universal joint bearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102817928A (en) * 2012-09-05 2012-12-12 中航工业哈尔滨轴承有限公司 Cross axle universal joint bearing
CN108930717A (en) * 2017-05-23 2018-12-04 斯凯孚公司 universal joint bearing
CN108930717B (en) * 2017-05-23 2021-10-01 斯凯孚公司 Universal joint bearing

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20201225

Address after: No.14, Hongqi Street, Xiangfang District, Harbin City, Heilongjiang Province

Patentee after: Harbin Bearing Group Ltd.

Address before: 150025 No.2 Xingye Road, Limin Development Zone, Harbin, Heilongjiang Province

Patentee before: AVIC HARBIN BEARING Co.,Ltd.

TR01 Transfer of patent right