CN201517566U - Universal joint with composite bearing structure - Google Patents
Universal joint with composite bearing structure Download PDFInfo
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- CN201517566U CN201517566U CN2009203033980U CN200920303398U CN201517566U CN 201517566 U CN201517566 U CN 201517566U CN 2009203033980 U CN2009203033980 U CN 2009203033980U CN 200920303398 U CN200920303398 U CN 200920303398U CN 201517566 U CN201517566 U CN 201517566U
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- universal joint
- composite bearing
- composite
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- bearing structure
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Abstract
The utility model relates to a connecting part used in mechanical industry, particularly to a universal joint with a composite bearing structure and the manufacturing method of the universal joint. A composite bearing ring is added on a rolling path on the inner wall of a bearing sleeve; the composite bearing ring can replace a rolling needle; the outer wall of the composite bearing ring is in tight fit with the bearing sleeve; and the composite bearing ring is in interference fit with the bearing sleeve. The universal joint is characterized by reasonable and simple structure, low processing cost, convenient and simple assembly, simple production technology, good lubrication, little friction resistance and the like.
Description
Technical field
The utility model relates to a kind of union piece of mechanical industry, relates in particular to a kind of universal joint of composite bearing structure and its manufacture method.
Background technique
Hooke's joint is applied to the transmission shaft of various automobiles, engineering machinery etc., transmits rotation torque, is very important component in the transmission system.In traditional design, four needle roller bearing without inner rings of universal joint adopt needle roller to assemble, its outer ring is adopted 20Cr or 20CrMnTi material usually, form through forging, machining, heat-treatment quenching, design the needle roller of circumferential arrangement on the interior raceway of bearing, cooperating with cross axle becomes the universal-joint cross trunnion assembly.Though this Hooke's joint is widely used, since the needle roller processing cost height in the bearing, the assembling difficulty, bearing outer ring must be made with alloy structure quenching heat treatment technology, cost is higher, for the occasion of low speed and large torque, does not also occur replacing the universal joint of needle bearing at present.The utility model patent of the needle bearing of a universal joint by name, the patent No. is CN91202827.0, mainly be to be provided with central authorities to be the cross oil duct of circular hole at bottom end place, bearing inner casing hole, wherein the quadripolar corners at the cross oil duct is symmetrical arranged a circular chase to inner casing aperture wall according to the center, needle roller is arranged on this circular chase, this structure in time flows on the needle roller lubricant oil, makes needle roller and universal joint obtain preferable lubrication effect, and helps the assembling of needle roller.This structure is lower working life, and cost of production is higher.
Summary of the invention
The utility model mainly is at existing in prior technology processing cost height, the assembling difficulty, complex manufacturing, lubricated relatively poor, the technical problem of the bigger grade of surface friction drag, provide a kind of rational in infrastructure simple, processing cost is lower, and is easy to assembly simple, production technology is easy, better lubricated, the universal joint of composite bearing structure that surface friction drag is less, and the manufacture method of this universal joint of composite bearing structure.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the cross-axis head of universal joint and several are set in the bearing housing of cross-axis head and form, the sealing of bearing housing one end, one side has circular open, bearing housing inwall raceway is added with the composite bearing circle, the composite bearing circle replaces needle roller, its outer wall and bearing housing fit tightly, and composite bearing circle and bearing housing interference fit.Making the material of composite bearing circle can be made up of steel plate, bronze, teflon or nylon material multiple, and the composite bearing circle has replaced needle roller, and original line contact is become present face contact.
As preferably, be coated with composite layer on the inwall of composite bearing circle or the outer wall, have spiral chute or some honeycombs on the composite bearing circle inwall.An amount of grease of annotating improves flexibility ratio, and the test back shows that no deep-fried twisted dough sticks spare is compared with the oiling condition, and friction factor differs more than one times; When rotating speed is low, also can not establish spiral chute, to save cost.
As preferably, honeycomb is by some identical circles or the rhombus shrinkage pool is regularly arranged forms, and is filled with solid lubricant in circle or the rhombus shrinkage pool.Composite layer is formed by copper-base alloy powder and nylon composite materials sintering, adds fixedly oiling agent in spiral chute or honeycomb, increases and lubricates, the friction factor of minimizing face contact.Generally, when bronze substrate is matrix, dose solid lubricant, make it to have lower friction factor based on graphite at spiral chute or honeycomb.
As preferably, it is step-like that cage openings is from inside to outside successively, and opening and bearing housing inwall have chamfered transition, and opening is provided with oil sealing.After the composite bearing circle was pressed into bearing, envelope added oil sealing at once, prevents that lubricating grease from overflowing in bearing movable, increased bearing working life.
As preferably, oil sealing is the disk arch shape, and its edge is smooth, outwards arches upward in the center, and oil sealing is outside equipped with cyclic skeleton, and the edge of oil sealing is embedded in the skeleton.
As preferably, have radially groove of some intervals on the composite bearing circle, be inlaid with solid lubricant in the groove.Inlaid solid lubrication agent in groove combines the wear resistance of Cuprum alloy and the self-lubricating property of solid lubricant, is applicable to the universal joint of high loading occasion.
As preferably, have some logical oil grooves on the inwall of race ring, logical oil groove space and direction distribution in the shape of a spiral.In the bearing movable process, guarantee that the grease of universal joint enters acting surface, prevent to generate heat and improve the bulk life time of universal joint.
As preferably, the sectional shape of logical oil groove is trapezoidal or rectangle or circular arc.Composite bearing circle inwall or inside and outside wall are processed into helical oil groove or store oil hole radially simultaneously, guarantee that the grease of universal joint enters acting surface, and the bearing that adopts solid to inlay has promoted self-lubricating property, prevent to generate heat to improve the bulk life time of universal joint.
Therefore, the utlity model has characteristics such as simply processing cost is lower, and easy to assembly simple, production technology is easy, and is better lubricated, and surface friction drag is less rational in infrastructure.
Description of drawings
Accompanying drawing 1 is an overall structure schematic representation of the present utility model;
Accompanying drawing 2 is first kind of structure sectional view of the utility model bearing housing;
Accompanying drawing 3 is second kind of structure sectional view of the utility model bearing housing;
Accompanying drawing 4 is the third structure sectional views of the utility model bearing housing.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: adopt the main material of 20Cr as race ring 1, become tabular by cold-extruded, quenching heat treatment becomes 0.10mm to case depth, and its hardness test is 58HRC.Subsequently, select nylon PA6 and copper-base alloy powder sintering for use, the composite material behind the sintering is plated in the both sides of 20Cr plate; Simultaneously, on the both side surface of 20Cr plate, all stamp spiral chute, after the 20Cr coiled sheet is made race ring.Cylindrical sleeve after the race ring moulding is coated grease simultaneously, race ring is pressed in the bearing housing of interference fit with it, have logical oil groove 7 on the race ring 1, it is step-like that cage openings is from inside to outside successively, and opening and bearing housing inwall have chamfered transition, and opening is provided with oil sealing 5.Oil sealing 5 is the disk arch shape, and its edge is smooth, outwards arches upward in the center, and oil sealing 5 is outside equipped with cyclic skeleton, and the edge of oil sealing 5 is embedded in the skeleton.Afterwards bearing housing is set on the cross axle of universal joint (as illustrated in fig. 1 and 2).
This kind bearing is fit to be applied on the chassis transmission shaft of light card and minicar usually.
Embodiment 2: adopt teflon or the nylon PA6 main material as race ring, add glass fibre therein, mixing the back adopts injection machine to be injection molded into cylindrical sleeve, on the race ring both side surface, all stamp honeycomb 4, honeycomb 4 is arranged in a combination by hole, rhombus oil cave, coats behind the grease race ring is pressed in the bearing housing of interference fit with it, and it is step-like that cage openings is from inside to outside successively, opening and bearing housing inwall have chamfered transition, and opening is provided with oil sealing 5.Oil sealing 5 is the disk arch shape, and its edge is smooth, outwards arches upward in the center, and oil sealing 5 is outside equipped with cyclic skeleton, and the edge of oil sealing 5 is embedded in the skeleton.Afterwards bearing housing is set on the cross axle of universal joint (as shown in figs. 1 and 3).
This kind bearing is fit to be applied on the chassis transmission shaft and steering drive axle of minicar usually.
Embodiment 3: adopt the main material of bronze as race ring, go out various difformities oil hole, cave and groove 6 radially in its surface Machining, and it is squeezed into cylindrical sleeve, in hole, oily cave, load grease, load graphite as solid lubricant in through hole, race ring is pressed in the bearing housing of interference fit with it, it is step-like that cage openings is from inside to outside successively, opening and bearing housing inwall have chamfered transition, and opening is provided with oil sealing 5.Oil sealing 5 is the disk arch shape, and its edge is smooth, outwards arches upward in the center, and oil sealing 5 is outside equipped with cyclic skeleton, and the edge of oil sealing 5 is embedded in the skeleton.Afterwards bearing housing is set on the cross axle of universal joint (as shown in figs. 1 and 4).
This kind bearing is fit to be applied on the bigger universal joint of heavy duty vehicle and engineering machinery transmitting torque.
Specific embodiment described herein only is that the present invention's spirit is illustrated, has different structure for race ring because of the different materials composition, this paper does not enumerate one by one yet, this should be that the technician of technical field that the present invention belongs to can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, all be normal distortion, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (8)
1. universal joint of composite bearing structure, the cross-axis head and several bearing housings that is set in cross-axis head that comprise universal joint are formed, the sealing of bearing housing one end, one side has circular open, it is characterized in that described bearing housing inwall raceway is added with composite bearing circle (1), the composite bearing circle replaces needle roller, and its outer wall and bearing housing fit tightly, and composite bearing circle and bearing housing interference fit.
2. universal joint of composite bearing structure according to claim 1 is characterized in that being coated with composite layer on the inwall of described composite bearing circle (1) or the outer wall, has spiral chute or some honeycombs (4) on the composite bearing circle inwall.
3. universal joint of composite bearing structure according to claim 2 is characterized in that described honeycomb (4) by some identical circles or the rhombus shrinkage pool is regularly arranged forms, is filled with solid lubricant in circle or the rhombus shrinkage pool.
4. universal joint of composite bearing structure according to claim 1 and 2 is characterized in that described cage openings is step-like from inside to outside successively, and opening and bearing housing inwall have chamfered transition, and opening is provided with oil sealing (5).
5. universal joint of composite bearing structure according to claim 4 is characterized in that described oil sealing (5) is the disk arch shape, and its edge is smooth, outwards arches upward in the center, and oil sealing (5) is outside equipped with cyclic skeleton, and the edge of oil sealing (5) is embedded in the skeleton.
6. universal joint of composite bearing structure according to claim 1 and 2 is characterized in that having on the described composite bearing circle (1) radially groove (6) of some intervals, and groove is inlaid with solid lubricant in (6).
7. universal joint of composite bearing structure according to claim 1 and 2 is characterized in that having some logical oil grooves (7) on the inwall of described race ring, logical oil groove (7) space and direction distribution in the shape of a spiral.
8. universal joint of composite bearing structure according to claim 7 is characterized in that the sectional shape of described logical oil groove (7) is trapezoidal or rectangle or circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203033980U CN201517566U (en) | 2009-05-21 | 2009-05-21 | Universal joint with composite bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203033980U CN201517566U (en) | 2009-05-21 | 2009-05-21 | Universal joint with composite bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517566U true CN201517566U (en) | 2010-06-30 |
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ID=42498289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203033980U Expired - Fee Related CN201517566U (en) | 2009-05-21 | 2009-05-21 | Universal joint with composite bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517566U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829068A (en) * | 2012-08-23 | 2012-12-19 | 北京摩诘创新科技有限公司 | A bearing hinged support |
| CN102862929A (en) * | 2012-08-23 | 2013-01-09 | 北京摩诘创新科技有限公司 | Six-degree of freedom motion platform |
| CN103775519A (en) * | 2014-03-03 | 2014-05-07 | 贵阳力波机械传动有限公司 | Universal coupling overloading cross shaft with no roller pin |
-
2009
- 2009-05-21 CN CN2009203033980U patent/CN201517566U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829068A (en) * | 2012-08-23 | 2012-12-19 | 北京摩诘创新科技有限公司 | A bearing hinged support |
| CN102862929A (en) * | 2012-08-23 | 2013-01-09 | 北京摩诘创新科技有限公司 | Six-degree of freedom motion platform |
| CN102862929B (en) * | 2012-08-23 | 2015-03-11 | 北京摩诘创新科技股份有限公司 | Six-degree of freedom motion platform |
| CN103775519A (en) * | 2014-03-03 | 2014-05-07 | 贵阳力波机械传动有限公司 | Universal coupling overloading cross shaft with no roller pin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20180521 |