CN102878211A - Bearing support assembly for transmission shaft of vehicle - Google Patents
Bearing support assembly for transmission shaft of vehicle Download PDFInfo
- Publication number
- CN102878211A CN102878211A CN2012103898154A CN201210389815A CN102878211A CN 102878211 A CN102878211 A CN 102878211A CN 2012103898154 A CN2012103898154 A CN 2012103898154A CN 201210389815 A CN201210389815 A CN 201210389815A CN 102878211 A CN102878211 A CN 102878211A
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- bearing
- rolling bearing
- cover
- cover plate
- engine cylinder
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Abstract
The invention discloses a bearing support assembly for a transmission shaft of a vehicle. The bearing support assembly comprises a bearing support (1), a rolling bearing (2) and a bearing cover plate (3), wherein the rolling bearing (2) is arranged in a rolling bearing mounting cavity of the bearing support (1) in a clearance fit manner; assembly and disassembly of the rolling bearing are facilitated; requirements of the rolling bearing on metal thermal expansion in a high-speed and high-temperature work environment are met; the height of the rolling bearing (2) is H1 greater than the depth of the rolling bearing mounting cavity; the top surface of the rolling bearing mounting cavity is H2 higher than cover plate mounting tables (1d); the bearing cover plate (3) and the cover plate mounting tables (1d) are fastened together through bolts (4); the bearing cover plate (3) deforms elastically and compresses an outer ring (2a) of the rolling bearing (2); and effects of fixing the outer ring of the rolling bearing and preventing the outer ring of the rolling bearing from rotating are achieved by using allowable elastic deformation of the materials of the bearing cover plate.
Description
Technical field
The present invention relates to the vehicle transmission technical field, be specifically related to a kind of bearing spider structure for the supporting vehicular transmission shaft.
Background technique
In preposition forerunner's automobile was arranged, driving-shaft assembly directly was arranged between wheel and the speed changer, and when wheel tracks is larger, tended to transmission shaft is carried out segment design to improve the performance of driving-shaft assembly.At this moment, just need to set up the weight that a bearing device comes the supporting drive shaft assembly.The transmission shaft of this kind structure can press-fit a supporting usefulness rolling bearing as supporting point by interference fit on one section transmission shaft usually therein; and design various matching requirements and the usage requirement that a kind of bearing spider structure that cooperates with it guarantees transmission shaft, particularly to satisfy the usage requirement of bearing.In common design, bearing outer ring is to adopt the mode of interference fit to prevent what bearing outer ring from rotating with cooperating of bearing spider, and this kind assembling mode is difficult to assembling for preposition forerunner's vehicle in the car load assembly process, need configure dedicated equipment just can finish; This block bearing is in for a long time under the hot environment and turns round in addition, easily produce thermal expansion metal, if employing interference fit, then there are not enough expansion spaces to absorb the swell increment of bearing, just so that bearing clearance diminishes, bearing runs up under such environment and mated condition, will greatly reduce working life, bearing is understood ablation when serious, thereby affects the normal use of vehicle.
Summary of the invention
The present invention aims to provide a kind of vehicular transmission shaft with bearing bearing support assembly, with the usage requirement of satisfying rolling bearing and the usage requirement of vehicular transmission shaft, and the servicing ease of transmission shaft.
For this reason, a kind of vehicular transmission shaft provided by the invention bearing bearing support assembly, comprise bearing spider (1) and rolling bearing (2), described bearing spider (1) comprises support body (1a) and the engine cylinder-body link press span (1b) that is wholely set, described support body (1a) is cylindrical shape, housing washer supporting ring (1c) has extended internally in the bottom of support body (1a), the inwall of described support body (1a) and housing washer supporting ring (1c) have consisted of the rolling bearing installation cavity, described engine cylinder-body link press span (1b) is arranged on outside the sidewall of support body (1a), have engine cylinder-body attachment hole (1e) at engine cylinder-body link press span (1b), key is: described rolling bearing (2) adopts the mode of Spielpassung to be installed in the rolling bearing installation cavity, be provided with bearing cover (3) in the top of described rolling bearing (2), have cover central hole (3a) on the described bearing cover (3), outer side wall in support body (1a) has been wholely set cover plate mounting platform (1d), the large H1 of the degree of depth of the aspect ratio rolling bearing installation cavity of described rolling bearing (1), the end face of described rolling bearing installation cavity is than the high H2 of cover plate mounting platform (1d), described bearing cover (3) and cover plate mounting platform (1d) tighten together by bolt (4), and bearing cover (3) resiliently deformable occurs and with outer ring (2a) compression of rolling bearing (2).
In this structure, be provided with altogether two height difference, one is the difference H1 that the degree of depth of the height of rolling bearing and rolling bearing installation cavity forms, another is the end face of support body and the difference H2 that the cover plate mounting platform forms, bearing cover is installed after having assembled rolling bearing again, after bearing cover is installed on the bearing spider by bolt, bearing cover is under the effect of bolt tightening moment, can be two height difference near zone generation resiliently deformables, thereby produce an elastic pressure, this elastic pressure acts on the housing washer, play the effect that compresses housing washer, reach the effect that prevents that housing washer from rotating.
Have the breach (3b) that is communicated with cover central hole (3a) on the described bearing cover (3), the width L of described breach (3b) is greater than the inside diameter D of rolling bearing (1).The equal diameters of the internal diameter of rolling bearing and transmission shaft axostylus axostyle, the width of breach is greater than the internal diameter of rolling bearing, then the width of breach is greater than the diameter of transmission shaft axostylus axostyle, when assembling and dismounting, bearing cover can directly stride across the transmission shaft axostylus axostyle, be inserted in or take out from the side of transmission shaft axostylus axostyle, easy disassembly.
Totally two of described cover plate mounting platforms (1d), the line at two cover plate mounting platforms (1d) center is through the center of cylindrical shape support body (1a), optimize quantity and the mounting point of cover plate mounting platform, both guaranteed being fastenedly connected of bearing cover and bearing spider, simplify the structure again, saved cost.
Be preferably, described engine cylinder-body link press span (1b) is made of level board and vertical plate, T-shaped, totally four of described engine cylinder-body attachment holes (1e), rectangular being distributed on the level board, described vertical plate is vertical with the outer side wall of support body (1a), and the axis of engine cylinder-body attachment hole (1e) is vertical with the axis of rolling bearing (2).
Beneficial effect:
(1) bearing spider and rolling bearing adopt Spielpassung, not only improved the convenience of the installation and removal of rolling bearing, have also satisfied the requirement of the thermal expansion metal that rolling bearing produces under the working environment of high-speed and high-temperature;
(2) bearing spider connects by engine cylinder-body link press span and joint bolt and is assembled on the engine cylinder-body, plays the fixedly effect of rolling bearing and supporting drive shaft assembly weight; Bearing cover is assemblied on the bearing spider by cover plate mounting platform and joint bolt, the resiliently deformable of utilizing the bearing cover material to allow, and playing fixedly, housing washer prevents the effect that housing washer rotates;
(3) the spline design Anti-release clamp spring structure of speed changer one side is being inserted in the design meeting of transmission shaft usually, set up in the present invention bearing cover, after assembling is complete, rolling bearing firmly and reliably is fixed in the bearing spider, can prevent from deviating from the differential gear spline on the differential mechanism of transmission shaft in the gearbox, realize the function of anticreep, and then can cancel the disconnecting prevention structure design of input end on the former transmission shaft, thereby simplified the structure of transmission shaft, reduced cost.
Description of drawings
Fig. 1 is the structural representation of middle (center) bearing bearing of the present invention.
Fig. 2 is the structural representation of middle (center) bearing cover plate of the present invention.
Fig. 3 is the assembling schematic representation of the present invention and engine cylinder-body, transmission shaft.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 is that bearing cover is assembled to the state before bolt tightening on the bearing spider.
Fig. 6 is that bearing cover is assembled to the state behind bolt tightening on the bearing spider.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the present invention is described in further detail:
Bearing spider 1 as shown in Figure 1 is comprised of support body 1a, engine cylinder-body link press span 1b and cover plate mounting platform 1d.Support body 1a is cylindrical shape, and the housing washer supporting ring 1c that extended internally in the bottom of support body 1a is for the outer ring of back-up roller dynamic bearing.The inwall of support body 1a and housing washer supporting ring 1c have consisted of the rolling bearing installation cavity, are used for installing rolling bearing.Engine cylinder-body link press span 1b is arranged on outside the sidewall of support body 1a, has engine cylinder-body attachment hole 1e at engine cylinder-body link press span 1b, and bearing spider 1 is installed on the engine cylinder-body by engine cylinder-body link press span 1b.The part blank of bearing spider 1 adopts casting (comprising general casting and precision casting) moulding, then finishes tapped hole on engine cylinder-body attachment hole 1e on the bearing spider 1, rolling bearing installation cavity and the cover plate mounting platform 1d etc. by mechanical processing technique.Bearing spider 1 is through casting, and support body 1a, engine cylinder-body link press span 1b, cover plate mounting platform 1d and housing washer supporting ring 1c are connected as a single entity.
The structural type of engine cylinder-body link press span 1b is not limit, and determines according to the particular location of engine cylinder-body, and can reach enough intensity and get final product.Be preferably, engine cylinder-body link press span 1b is made of level board and vertical plate, whole T-shaped, totally four of engine cylinder-body attachment hole 1e, rectangular being distributed on the level board, vertical plate is vertical with the outer side wall of support body 1a, and the axis of engine cylinder-body attachment hole 1e is vertical with the axis of rolling bearing 2.
Cover plate mounting platform 1d is arranged on outside the support body 1a, links to each other with the outer side wall of support body 1a.Cover plate mounting platform 1d is preferably two, and the line at two cover plate mounting platform 1d centers also can be three, four or more through the center of cylindrical shape support body 1a.1d has tapped hole at the cover plate mounting platform, and cover plate mounting platform 1d is used for the rigid bearing cover plate.
In conjunction with Fig. 3---shown in Figure 6, vehicular transmission shaft holds cover plate 3 with bearing bearing support assembly by bearing spider 1, rolling bearing 2, roller bearing and two bolts 4 form.Rolling bearing 2 adopts the mode of Spielpassung to be installed in the rolling bearing installation cavity of bearing spider 1, and rolling bearing 2 is sleeved on the axostylus axostyle of transmission shaft 5, is provided with bearing cover 3 above rolling bearing 2.The lower end of the outer ring 2a of rolling bearing 2 is supported by housing washer supporting ring 1c, and the upper end of the outer ring 2a of rolling bearing 2 compresses by bearing cover 3.Bearing spider 1 is connected on the engine cylinder-body 6 by engine cylinder-body link press span 1b and in conjunction with the bolt 7 of four rectangular distributions.The large H1 of the degree of depth of the aspect ratio rolling bearing installation cavity of rolling bearing 2, the end face of rolling bearing installation cavity are than the high H2 of cover plate mounting platform 1d, and the height difference of the upper-end surface of rolling bearing 2 and cover plate mounting platform 1d is H1 and H2 sum.The inside diameter D of rolling bearing 1 equates with the shaft diameter of transmission shaft 5.Bearing cover 3 tightens together by two bolts 4 with cover plate mounting platform 1d, and bearing cover 3 resiliently deformables occurs and the outer ring 2a of rolling bearing 2 is compressed.
Assembly process: bearing spider 1 is fixed on the engine cylinder-body 6 by four bolts 7, then in the rolling bearing installation cavity on the driving-shaft assembly insertion bearing spider 1 that other parts such as transmission shaft 5 and rolling bearing 2 (transmission shaft 5 and rolling bearing 2 adopt interference fit) is formed, again bearing cover 3 is assembled on the bearing spider 1 by two bolts 4.
Claims (4)
1. a vehicular transmission shaft is with bearing bearing support assembly, comprise bearing spider (1) and rolling bearing (2), described bearing spider (1) comprises support body (1a) and the engine cylinder-body link press span (1b) that is wholely set, described support body (1a) is cylindrical shape, housing washer supporting ring (1c) has extended internally in the bottom of support body (1a), the inwall of described support body (1a) and housing washer supporting ring (1c) have consisted of the rolling bearing installation cavity, described engine cylinder-body link press span (1b) is arranged on outside the sidewall of support body (1a), have engine cylinder-body attachment hole (1e) at engine cylinder-body link press span (1b), it is characterized in that: described rolling bearing (2) adopts the mode of Spielpassung to be installed in the rolling bearing installation cavity, be provided with bearing cover (3) in the top of described rolling bearing (2), have cover central hole (3a) on the described bearing cover (3), outer side wall in support body (1a) has been wholely set cover plate mounting platform (1d), the large H1 of the degree of depth of the aspect ratio rolling bearing installation cavity of described rolling bearing (2), the end face of described rolling bearing installation cavity is than the high H2 of cover plate mounting platform (1d), described bearing cover (3) and cover plate mounting platform (1d) tighten together by bolt (4), and bearing cover (3) resiliently deformable occurs and with outer ring (2a) compression of rolling bearing (2).
2. according to vehicular transmission shaft claimed in claim 1 bearing bearing support assembly, it is characterized in that: have the breach (3b) that is communicated with cover central hole (3a) on the described bearing cover (3), the width L of described breach (3b) is greater than the inside diameter D of rolling bearing (1).
3. according to claim 1 or 2 described vehicular transmission shafts bearing bearing support assembly, it is characterized in that: totally two of described cover plate mounting platforms (1d), the line at two cover plate mounting platforms (1d) center is through the center of support body (1a).
4. according to claim 1 or 2 described vehicular transmission shafts bearing bearing support assembly, it is characterized in that: described engine cylinder-body link press span (1b) is made of level board and vertical plate, T-shaped, totally four of described engine cylinder-body attachment holes (1e), rectangular being distributed on the level board, described vertical plate is vertical with the outer side wall of support body (1a), and the axis of engine cylinder-body attachment hole (1e) is vertical with the axis of rolling bearing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103898154A CN102878211A (en) | 2012-10-16 | 2012-10-16 | Bearing support assembly for transmission shaft of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103898154A CN102878211A (en) | 2012-10-16 | 2012-10-16 | Bearing support assembly for transmission shaft of vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN102878211A true CN102878211A (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103898154A Pending CN102878211A (en) | 2012-10-16 | 2012-10-16 | Bearing support assembly for transmission shaft of vehicle |
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| CN (1) | CN102878211A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470639A (en) * | 2013-09-13 | 2013-12-25 | 天津明贤科技有限公司 | Bearing sealing end plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0875686A1 (en) * | 1997-04-02 | 1998-11-04 | SKF Industrial Trading & Development Company, B.V. | Bearing system with improved press fit systems |
| CN2630559Y (en) * | 2003-07-14 | 2004-08-04 | 崔丽蓉 | Adjustable eccentric bearing seat |
| DE102004054457B3 (en) * | 2004-11-11 | 2006-02-09 | Ab Skf | Multi-purpose machine and automotive roller bearing is retained concealed within a surrounding housing by a spring locking ring |
| CN201180744Y (en) * | 2008-01-15 | 2009-01-14 | 林彬 | Fast mounting/dismounting mechanism for rotating shaft and shaft sleeve |
-
2012
- 2012-10-16 CN CN2012103898154A patent/CN102878211A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0875686A1 (en) * | 1997-04-02 | 1998-11-04 | SKF Industrial Trading & Development Company, B.V. | Bearing system with improved press fit systems |
| CN2630559Y (en) * | 2003-07-14 | 2004-08-04 | 崔丽蓉 | Adjustable eccentric bearing seat |
| DE102004054457B3 (en) * | 2004-11-11 | 2006-02-09 | Ab Skf | Multi-purpose machine and automotive roller bearing is retained concealed within a surrounding housing by a spring locking ring |
| CN201180744Y (en) * | 2008-01-15 | 2009-01-14 | 林彬 | Fast mounting/dismounting mechanism for rotating shaft and shaft sleeve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470639A (en) * | 2013-09-13 | 2013-12-25 | 天津明贤科技有限公司 | Bearing sealing end plate |
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Application publication date: 20130116 |