CN104141697A - Transmission shaft support unit - Google Patents
Transmission shaft support unit Download PDFInfo
- Publication number
- CN104141697A CN104141697A CN201310165321.2A CN201310165321A CN104141697A CN 104141697 A CN104141697 A CN 104141697A CN 201310165321 A CN201310165321 A CN 201310165321A CN 104141697 A CN104141697 A CN 104141697A
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- China
- Prior art keywords
- bearing
- ring
- transmission shaft
- shaft support
- support unit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Support Of The Bearing (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a transmission shaft support unit, belongs to the technical field of bearing production, and mainly solves the problem of damage of the transmission shaft support unit caused by easy release of a support bearing and function loss of a rubber pad in the prior art. The transmission shaft support unit is characterized by comprising a support base, a rubber shock pad, a support bearing and a sealing ring, wherein two snap spring grooves and a large inner snap spring are arranged in an inner hole of the support base; honeycomb blind hole grooves are formed in two peripheral end surfaces of the rubber shock pad; two snap spring grooves, a small inner snap spring and a waveform spring are arranged in an inner hole of a metal ring; the support bearing adopts an inner-outer ring integrated four-point contact ball bearing; an outer lip of the sealing ring is fixed in the inner hole of the metal ring; and the inner diameter of a sealing lip is lightly contacted with and fits the outer diameter of the inner race of the support bearing. The transmission shaft support unit has the characteristics of improving the axial bearing capacity of the bearing, reducing the axial impact load, improving the torque resistance and preventing the release of the support bearing to prolong the service life of the bearing, and is mainly applied to an automotive transmission shaft support unit.
Description
Technical field
The invention belongs to bearing manufacturing technology field, be specifically related to a kind of long lifetime transmission shaft support unit, is bearing unit product.
Background technique
Cardan-shaft suspension unit is the vitals of car transmissions, while working due to automobile complete machine, vibrations are large, axial impact loading is frequent, and bearing bears larger moment of torsion to a certain extent, operating conditions very severe, so the block bearing sequence of sanqu songs within a particular musical mode very easily, the rubber pad that former supporting adopts in addition, under high-temperature and high-pressure conditions, permanent deformation is large, and the reduction of rubber pad precision causes afunction, thereby causes cardan-shaft suspension unit to damage.Therefore be necessary existing cardan-shaft suspension unit to carry out architecture advances, reduce axial impact loading, improve bearing axial carrying capacity, improve bearing torque resistant ability, thus the life-span of improving cardan-shaft suspension unit.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of novel cardan-shaft suspension unit, improves bearing axial carrying capacity, reduces axial impact loading, improves health torque capability, avoids the block bearing sequence of sanqu songs within a particular musical mode, thereby improves bearing working life.
Technical solution of the present invention is: a kind of transmission shaft support unit, comprise supporting base, Rubber shock-absorbing pad, block bearing, seal ring, supporting base is provided with positioning hole, the endoporus embedded with metal ring of Rubber shock-absorbing pad, is characterized in that: two fixedly jump-ring slot and the imperial palace jump rings of Rubber shock-absorbing pad are set on described supporting base inner hole wall; In the two sides circumferential end surfaces of described Rubber shock-absorbing pad, offer cellular blind hole groove; Jump-ring slot and the little interior jump ring of two fixed bearing bearings are set on described metal ring endoporus, between block bearing and little interior jump ring, wavy spring are installed; Described block bearing adopts the all-in-one-piece four-point contact ball of Internal and external cycle; The outer lip of described seal ring is fixed on the endoporus of metal ring, and internal diameter sealing lip gently contacts cooperation mutually with the inner ring external diameter of block bearing, repack with grease in the cavity between seal ring and block bearing.
Between block bearing cylindrical described in technical solution of the present invention and the inner hole wall of metal ring, there is assemblage gap.
Block bearing inner race width described in technical solution of the present invention is widened to identical with block bearing width.
Rubber shock-absorbing pad described in technical solution of the present invention is the Rubber shock-absorbing pad of EPDM/PP TPV material.
The wrapping angle of the four-point contact ball described in technical solution of the present invention is 35 °.
The present invention contrasts prior art following beneficial effect:
Cardan-shaft suspension provided by the invention unit, by adopting EPDM/PP TPV Rubber shock-absorbing pad, improves the corrosion resistance of Rubber shock-absorbing pad, and High Temperature High Pressure permanent deformation is little, and thermostability reduces the damping anti-twisting property bringing because of Rubber shock-absorbing pad distortion and lost efficacy; By at Rubber shock-absorbing pad end face, honeycomb blind hole groove being set, improve Rubber shock-absorbing pad compression volume, improve supporting axle to anti-twisting property; By adopting four-point contact ball to improve the axial carrying capacity of bearing; By increasing wavy spring at bearing face, reduce bearing axial impact loading; By widening inner ring, bearing unit end-face seal ring is coordinated with external diameter, improve whole unit, facilitate bearing unit to install.
The present invention has the bearing of raising axial carrying capacity, reduces axial impact loading, improves health torque capability, avoids the block bearing sequence of sanqu songs within a particular musical mode, thereby improves the bearing feature in working life.The present invention is mainly used in truck drive shaft bearing unit.
Accompanying drawing explanation
Fig. 1 is the structural representation of cardan-shaft suspension of the present invention unit.
In figure: supporting base 1, jump-ring slot 1-1, positioning hole 1-2, Rubber shock-absorbing pad 2, blind hole groove 2-1, metal ring 2-2, jump-ring slot 2-3, block bearing 3, wavy spring 4, little interior jump ring 5, imperial palace jump ring 6, seal ring 7.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the cardan-shaft suspension unit in the specific embodiment of the invention comprises supporting base 1, Rubber shock-absorbing pad 2, block bearing 3, two wavy springs 4, two little interior jump rings 5, two imperial palace jump rings 6, two seal rings 7.
Supporting base 1 is provided with positioning hole 1-2.Two fixedly jump-ring slot 1-1 and the imperial palace jump rings 6 of Rubber shock-absorbing pad 2 are set on supporting base 1 inner hole wall.Between block bearing 3 cylindricals and the inner hole wall of metal ring 2-2, there is assemblage gap.
Rubber shock-absorbing pad 2 adopts EPDM/PP TPV material, offers cellular blind hole groove 2-1 in its two sides circumferential end surfaces.The endoporus embedded with metal ring 2-2 of Rubber shock-absorbing pad 2, arranges jump-ring slot 2-3 and the little interior jump ring 5 of two fixed bearing bearings 3 on metal ring 2-2 endoporus, the wavy spring 4 of installing respectively between block bearing 3 and two little interior jump rings 5.
Block bearing 3 adopts the all-in-one-piece four-point contact ball of Internal and external cycle, and wrapping angle is 35 °, and it is identical with supporting base 1 width that block bearing 3 inner rings are widened to.
The outer lip of seal ring 7 is fixed on the endoporus of metal ring 2-2, and internal diameter sealing lip gently contacts cooperation mutually with the inner ring external diameter of block bearing 3, repack with grease in the cavity between seal ring 7 and block bearing 3.
Rubber shock-absorbing pad 2 is arranged in the endoporus of supporting base 1, and two imperial palace jump rings 6 are arranged in the jump-ring slot 1-1 in supporting base endoporus, by Rubber shock-absorbing pad axial restraint.Block bearing 3 cylindricals are arranged in the endoporus of 2 embedded with metal ring 2-2 of Rubber shock-absorbing pad, there is certain interval between the two, two little interior jump rings 5 are arranged in the jump-ring slot 2-3 of 2 embedded with metal ring 2-2 of Rubber shock-absorbing pad, between block bearing 3 and little interior jump ring 5, wavy spring 4 are installed.Seal ring 7 outer lips are fixed on the endoporus of 2 embedded with metal ring 2-2 of Rubber shock-absorbing pad, and its internal diameter sealing lip gently contacts cooperation mutually with the inner ring external diameter of block bearing 3.Repack with grease in cavity between seal ring 7 and block bearing 3.
Cardan-shaft suspension of the present invention unit, its Rubber shock-absorbing pad 2 adopts EPDM/PP TPV material, the corrosion resistance of its rubber pad is strong, High Temperature High Pressure permanent deformation is little, good thermal stability, the impact of the vibrations that produce in can permanently effective reduction car load running on supporting, its end face arranges honeycomb blind hole groove 2-1, improve Rubber shock-absorbing pad 2 compression volumes, improve supporting axle to anti-twisting property.Block bearing 3 adopts four-point contact ball, improves block bearing axial carrying capacity.Block bearing 3 both ends of the surface are installed wavy spring 4, reduce the axial impact loading in transmission shaft running, bearing unit being brought.Between the endoporus of block bearing 3 cylindricals and the embedded with metal ring 2-2 of Rubber shock-absorbing pad institute, there is certain interval, can realize self-aligning in the course of the work, reduced the additional load that the decentraction error in complete machine manufacture is brought to cardan-shaft suspension unit.Cardan-shaft suspension of the present invention unit solves rubber pad distortion, bearing axial carrying is low, the problem that axial impact loading is large, the life-span of greatly improving bearing unit.
Claims (5)
1. a transmission shaft support unit, comprise supporting base (1), Rubber shock-absorbing pad (2), block bearing (3), seal ring (7), supporting base (1) is provided with positioning hole (1-2), the endoporus embedded with metal ring (2-2) of Rubber shock-absorbing pad (2), is characterized in that: two fixedly jump-ring slot (1-1) and the imperial palace jump rings (6) of Rubber shock-absorbing pad (2) are set on described supporting base (1) inner hole wall; In the two sides circumferential end surfaces of described Rubber shock-absorbing pad (2), offer cellular blind hole groove (2-1); Jump-ring slot (2-3) and the little interior jump ring (5) of two fixed bearing bearings (3) are set on described metal ring (2-2) endoporus, between block bearing (3) and little interior jump ring (5), wavy spring (4) are installed; Described block bearing (3) adopts the all-in-one-piece four-point contact ball of Internal and external cycle; The outer lip of described seal ring (7) is fixed on the endoporus of metal ring (2-2), and internal diameter sealing lip gently contacts cooperation mutually with the inner ring external diameter of block bearing (3), repack with grease in the cavity between seal ring (7) and block bearing (3).
2. a kind of transmission shaft support unit according to claim 1, is characterized in that: between described block bearing (3) cylindrical and the inner hole wall of metal ring (2-2), have assemblage gap.
3. a kind of transmission shaft support unit according to claim 1 and 2, is characterized in that: described Rubber shock-absorbing pad (2) is the Rubber shock-absorbing pad of EPDM/PP TPV material.
4. a kind of transmission shaft support unit according to claim 1 and 2, is characterized in that: described block bearing (3) inner race width is widened to identical with supporting base (1) width.
5. a kind of transmission shaft support unit according to claim 1 and 2, is characterized in that: the wrapping angle of described four-point contact ball is 35 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165321.2A CN104141697A (en) | 2013-05-08 | 2013-05-08 | Transmission shaft support unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165321.2A CN104141697A (en) | 2013-05-08 | 2013-05-08 | Transmission shaft support unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104141697A true CN104141697A (en) | 2014-11-12 |
Family
ID=51850975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310165321.2A Pending CN104141697A (en) | 2013-05-08 | 2013-05-08 | Transmission shaft support unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104141697A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022647A (en) * | 2019-11-22 | 2020-04-17 | 利辛县宝隆橡塑密封件有限责任公司 | Rubber-plastic sealing element for automobile engine |
| CN111350759A (en) * | 2020-04-26 | 2020-06-30 | 程小荣 | Transmission shaft assembly of permanent magnet suspension bearing support |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10230751A (en) * | 1997-02-19 | 1998-09-02 | Showa:Kk | Center bearing supporting structure |
| CN201651035U (en) * | 2010-04-01 | 2010-11-24 | 洛阳巨创轴承科技有限公司 | Four-point contact ball bearing |
| CN201858263U (en) * | 2010-11-03 | 2011-06-08 | 中国第一汽车集团公司 | U-shaped split bracket type transmission shaft intermediate support assembly |
| CN201863715U (en) * | 2010-11-12 | 2011-06-15 | 许昌远东传动轴股份有限公司 | Novel transmission shaft |
| CN103057581A (en) * | 2011-10-24 | 2013-04-24 | 蒂森克虏伯普利斯坦有限公司 | Electromechanical motor vehicle steering device |
| CN203223483U (en) * | 2013-05-08 | 2013-10-02 | 襄阳汽车轴承股份有限公司 | Transmission shaft supporting unit |
-
2013
- 2013-05-08 CN CN201310165321.2A patent/CN104141697A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10230751A (en) * | 1997-02-19 | 1998-09-02 | Showa:Kk | Center bearing supporting structure |
| CN201651035U (en) * | 2010-04-01 | 2010-11-24 | 洛阳巨创轴承科技有限公司 | Four-point contact ball bearing |
| CN201858263U (en) * | 2010-11-03 | 2011-06-08 | 中国第一汽车集团公司 | U-shaped split bracket type transmission shaft intermediate support assembly |
| CN201863715U (en) * | 2010-11-12 | 2011-06-15 | 许昌远东传动轴股份有限公司 | Novel transmission shaft |
| CN103057581A (en) * | 2011-10-24 | 2013-04-24 | 蒂森克虏伯普利斯坦有限公司 | Electromechanical motor vehicle steering device |
| CN203223483U (en) * | 2013-05-08 | 2013-10-02 | 襄阳汽车轴承股份有限公司 | Transmission shaft supporting unit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022647A (en) * | 2019-11-22 | 2020-04-17 | 利辛县宝隆橡塑密封件有限责任公司 | Rubber-plastic sealing element for automobile engine |
| CN111022647B (en) * | 2019-11-22 | 2021-06-25 | 利辛县宝隆橡塑密封件有限责任公司 | Rubber-plastic sealing element for automobile engine |
| CN111350759A (en) * | 2020-04-26 | 2020-06-30 | 程小荣 | Transmission shaft assembly of permanent magnet suspension bearing support |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20141112 |