CN202001583U - Freestyle belt pulley of automobiles - Google Patents
Freestyle belt pulley of automobiles Download PDFInfo
- Publication number
- CN202001583U CN202001583U CN2011200291704U CN201120029170U CN202001583U CN 202001583 U CN202001583 U CN 202001583U CN 2011200291704 U CN2011200291704 U CN 2011200291704U CN 201120029170 U CN201120029170 U CN 201120029170U CN 202001583 U CN202001583 U CN 202001583U
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- Prior art keywords
- needle roller
- unidirectional needle
- crossbeam
- unidirectional
- integrated type
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- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/001—Integrated brakes or clutches for stopping or coupling the relatively movable parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
- F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
- F16D41/067—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical and the members being distributed by a separate cage encircling the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/44—Needle bearings
- F16C19/48—Needle bearings with two or more rows of needles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
Abstract
A freestyle belt pulley of automobiles is provided with an integral mandrel which is fixedly sleeved on the end of a rotating shaft of an alternating current (AC) generator. Driven pulleys are arranged outside the circumference of the integral mandrel, one-way bearings and support bearings are disposed between the integral mandrel and the driven pulleys, the outer ring of the one-way bearing is double ribbed, the outer ring of the support bring is single ribbed, the double ribbed outer ring and the single ribbed outer ring are both matched with central holes of the driven pulleys, and the front portion of the integral mandrel is provided with a shoulder for axial locating of the one-way bearing. The inner ring of the one-way bearing, the inner ring of the support bearing and the mandrel are in integrated structure. Effective length of torque transmission by the freestyle belt pulley of automobiles is uniform, failure does not happen between the one-way bearing and the mandrel, and service life is long.
Description
Technical field
The utility model relates to the free style belt wheel of built-in unilateral bearing, be fixed in the end of AC generator for vehicle running shaft, and be fixed between the driving pulley of engine crankshaft end, by hanging endless belt, drive AC generator for vehicle, relate in particular to a kind of automobile free style belt wheel.
Background technique
At present, what domestic automobile current generator adopted is simple belt wheel, do not contain unilateral bearing, under the requirement that automobile electrical power increases, easily produce skidding, cause that car load can't proper functioning, the whole train life-span of motor car engine periphery, comprise belt and idle pulley, motor drives generator work by train, when the motor speed change, the speed in belt when work can be subjected to the influence of engine combustion process and fuctuation within a narrow range, because whole train is a driven member, the driven pulley that comprises generator, and generator is because the effect of moment of inertia, still can be rotated further, in this case, the belt that is used for transmission can be suddenly by tightly fluffing or becoming tight by pine, like this, because the acceleration and deceleration operating mode of automobile, the state that has continual speed change or stop to be in all the time by tightly fluffing whole train, become tight inotropic state by pine, very easily damage the idle pulley of belt and train, this situation diesel engine with have the automatic transmission of high impact forces selector and be equipped with on the vehicle of alternator of high moment of inertia particularly evident.The employing of Freestyle belt sheave has weakened the vibration of belt, has reduced the stretching motion of belt, and prolonged life-span of belt simultaneously, in addition, also can be reduced in the load of transmission system when using the multiple-grooved V-shape belt and the noise of reduction whole drive system, and guarantee the normal operating life of motor.
At present, at a kind of driven pulley that electrical generator fields generally adopts, its scheme that adopts is on the running shaft of alternator, outside suit fixing mandrel freely; This mandrel around with the concentric driven pulley that is provided with of this mandrel; Be provided with an overrunning clutch at the axial intermediate portion of mandrel periphery and the inner headed face of driven pulley, the inner headed face interference fit of the outer ring of overrunning clutch and driven pulley, axial middle part at overrunning clutch is provided with the single roll body, and two ends are provided with and can make this mandrel and driven pulley freedom support needle roller in relative rotation.The shared outer ring of the single roll body of above-mentioned overrunning clutch and two end supports needle roller, circle is shared long raceways of three part rolling elements in the outer ring, improving the technological while of outer ring because long raceway has caused the bad situation of raceway precision conformity, and cause causing the fretting loss at transmission process, produce noise.Simultaneously,, the failure phenomenon that skids can be occurred between overrunning clutch and mandrel, the generating efficiency of alternator can't be guaranteed because the inner ring of overrunning clutch and mandrel adopt the mode of interference fit.
The model utility content
The technical problems to be solved in the utility model is: in the existing driven pulley device owing to do not have reliable axially locating between unilateral bearing and block bearing and mandrel, and influence the axially locating precision of whole train, thereby the effective length disunity that causes transmitting torque, the failure phenomenon that skids can appear between unilateral bearing and mandrel, when road conditions are comparatively abominable, have dust in the vehicle traveling process and enter block bearing and influence deficiency such as working life.The utility model provides a kind of automobile free style belt wheel, and the effective length of this free style belt wheel transmitting torque is unified, failure phenomenon, long service life can not occur between unilateral bearing and mandrel.
A kind of automobile free style belt wheel has the integrated type mandrel of the running shaft end that is fixedly set in alternator, outside integrated type mandrel circumference driven pulley is set; Unilateral bearing and block bearing are set between integrated type mandrel and driven pulley, the outer ring of unilateral bearing is two rib outer rings, the outer ring of block bearing is the single block border outer ring, two ribs outer ring, single block border outer ring all cooperate with the center hole of driven pulley, the convex shoulder that is used for the unilateral bearing axially locating is established in whole mandrel front portion, and the inner ring of unilateral bearing, the inner ring of block bearing and mandrel are structure as a whole; The inner ring of unilateral bearing and integrated type mandrel are overall structure, have avoided effectively the failure phenomenon that skids occurring between unilateral bearing and integrated type mandrel when transmitting torque is big; Unilateral bearing adopts two rib outer rings, and block bearing adopts the single block border outer ring, has avoided because of long raceway causes that coaxality is poor the situation of raceway precision conformity difference.
Unilateral bearing comprises supporting needle roller and supporting needle roller retainer, unidirectional needle roller and unidirectional needle roller retainer, the supporting needle roller contacts with the inner headed face of two rib outer rings and the periphery rolling of integrated type mandrel, unidirectional needle roller contacts with the inner headed face of two rib outer rings and the periphery rolling of integrated type mandrel, and unidirectional needle roller is provided with the spring sheet that the circumferencial direction elasticity that equates with unidirectional needle roller quantity pushes unidirectional needle roller with retainer; Be provided with arc slope groove or the straight line slope groove that equates with unidirectional needle roller quantity corresponding to unidirectional needle roller place on the integrated type mandrel periphery, the axial length and the unidirectional needle roller of arc slope groove or straight line slope groove match; Smallest radial spacing between the inner headed face of two ribs outer ring and the periphery of integrated type mandrel is less than the diameter of unidirectional needle roller, at the groove depth biggest place of arc slope groove or the straight line slope groove diameter greater than unidirectional needle roller; Block bearing has needle roller, and needle roller contacts with the inner headed face of single block border outer ring and the periphery rolling of integrated type mandrel, and the diameter of unidirectional needle roller is greater than the diameter of supporting needle roller and needle roller, and the diameter of unidirectional needle roller is 4.5～6.5mm; The increase of the unidirectional needle roller diameter of unilateral bearing has reduced the contact stress of unidirectional needle roller and integrated type mandrel and two rib outer rings, has improved the fatigue strength of unilateral bearing.
Arc slope groove is by the retainer positioning section, changeover portion, wedge section and big cylindrical section are formed, the retainer positioning section intersects with changeover portion and is connected, changeover portion is connected with the wedge section is tangent, the wedge section is connected with big cylindrical section, unidirectional needle roller comprises along the axial separated first and second annular end limits of common shaft with retainer and connects the crossbeam on two annular end limits, form the fenestra that keeps unidirectional needle roller between annular end limit and the crossbeam, the arc surface of crossbeam internal surface for protruding the annular end limit and matching with the retainer positioning section, the arc surface that unidirectional needle roller uses the crossbeam internal surface of retainer to protrude, cooperate with the arc slope groove on the integrated type mandrel periphery or the retainer positioning section of straight line slope groove, the wedge section is interior concave circular arc or straight line, the changeover portion of groove straight line slope, the arc slope groove on unidirectional needle roller and the integrated type mandrel periphery contacts with the wedge section, changeover portion and wedge section are tangent be connected to form in the unidirectional die cavity of molded lines structure or linear structure.The unidirectional die cavity of retainer positioning groove and unidirectional needle roller is fused, be convenient to of the installation of unidirectional needle roller with retainer, easy to assembly.
The internal surface two ends of crossbeam are provided with the spring positioning seam, and the bi-side of crossbeam are provided with the spring positioning conical surface; On the first and second annular end limits at the two ends of fenestra, a triangular hill that is used for spring positioning is arranged respectively, spring sheet is made up of supporting part that fuses and retained part, supporting part is the support plate of inward at both ends bending, support plate has straight flange and two flangings, the end of two flangings also bends inwards, the terminal bending angle of flanging place supports unidirectional needle roller and suspends, and retained part is two holding sheets, and the holding sheet upper end links to each other with the straight flange of support plate, the lower end of holding sheet bends inwards; The holding sheet of spring sheet is clipped in the spring positioning stop portion of crossbeam, spring sheet is packed into from the inner radius of retainer, and fit with the excircle configuration of the inner ring that surmounts bearing, be limited between inner ring and the retainer, spring sheet can be because of being subjected to frequent impact or under action of centrifugal force and depart from when work like this.The end of support plate two flangings bends inwards, the terminal bending angle of flanging place supports unidirectional needle roller and suspends, reduce the contact wear of spring sheet and unidirectional needle roller, when in spring sheet work, being subjected to the maximum compressing power of unidirectional needle roller, its bending distal portion just contacts with the straight flange of the support plate of spring sheet, how the spring sheet of this moment has been equivalent to two elastic support points, makes spring sheet have predetermined elastic force, and stressed more stable when contact.The bending angle b of intersubjective angle a of the straight flange of free state lower support sheet and holding sheet and holding sheet lower end is all less than the angle Y of the spring positioning conical surface and the crossbeam internal surface of cooperation place crossbeam, thereby makes the holding sheet of spring sheet be clamped in the spring positioning stop portion of crossbeam reliably.
The intersubjective angle a of the straight flange of free state lower support sheet and holding sheet is 73 °～77 °, the bending angle b of the lower end of holding sheet is 73 °～77 °, the angle Y of the spring positioning conical surface of crossbeam and the internal surface of crossbeam is 78 °～82 °, the bending angle b of the intersubjective angle a of the straight flange of free state lower support sheet and holding sheet and the lower end of holding sheet than the angle Y of the internal surface of the spring positioning conical surface of cooperation place crossbeam and crossbeam little 4 °～6 °.
For improving the anti-dust performance of free style belt wheel, prevent that dust from entering unilateral bearing, block bearing inside, improve the working life of free style belt wheel, at the front end of unilateral bearing and the rear end of block bearing dust seal is housed all between integrated type mandrel and driven pulley.
Dust seal comprises the metal frame and the rubber layer that is bonded in the metal frame endoporus of annular, metal frame press-fits in the driven pulley endoporus, the cylindrical of the endoporus of rubber layer and integrated type mandrel is sealed and matched, the sealing surface of rubber layer has arc groove, utilization is installed in the metal frame cylindrical of the dust seal of driven pulley both sides, ensures the axial limiting of integrated type mandrel and unilateral bearing, block bearing with the driven pulley mounting groove.The sealing surface of rubber layer has arc groove, and the structure of this double-sealing lip can delay the intrusion of extraneous grieshoch on the one hand, also helps avoiding simultaneously leaking of free style belt wheel internal grease.
The beneficial effects of the utility model are, a kind of automobile free style belt wheel is designed to overall structure with the inner ring and the integrated type mandrel of unilateral bearing, avoided effectively when transmitting torque is big, the failure phenomenon that skids occurring between unilateral bearing and integrated type mandrel, the effective length of transmitting torque is unified, unilateral bearing adopts two rib outer rings, block bearing adopts the single block border outer ring, rather than the outer ring of unilateral bearing and block bearing is made of one the formula outer ring, avoided causing that because of long raceway coaxality is poor, the situation of raceway precision conformity difference; Whole mandrel front portion is useful on the convex shoulder of unilateral bearing axially locating, axially locating precision height; The unidirectional die cavity of retainer positioning groove and unidirectional needle roller is fused, be convenient to of the installation of unidirectional needle roller with retainer, easy to assembly; Adopt the unidirectional die cavity of linear structure or interior molded lines structure, unidirectional needle roller is little with the contact stress that unidirectional die cavity contacts; By spring sheet and unidirectional needle roller are improved with the structure of retainer, improved the spring sheet bearing capacity of unilateral bearing, unidirectional needle roller intensity with retainer, the spring sheet displacement comes off in the time of can also preventing high rotating speed; At the front end of unilateral bearing and the rear end of block bearing dust seal is housed all between integrated type mandrel and driven pulley, dust sealing performance height, long service life is applicable to various road conditions.
Description of drawings
Fig. 1 is the structural representation of a kind of automobile free style of the utility model belt wheel.
Fig. 2 is the A-A broken section enlarged view of Fig. 1.
Fig. 3 is a kind of automobile free style of the utility model belt wheel, the enlarged view of unidirectional die cavity.
Fig. 4 is a kind of automobile free style of the utility model belt wheel, the unidirectional needle roller structural representation of retainer.
Fig. 5 is the plan view of Fig. 4.
Fig. 6 is the B-B sectional view of Fig. 4.
Fig. 7 is a kind of automobile free style of the utility model belt wheel, the structural representation of spring sheet.
Fig. 8 is that the C of Fig. 7 is to view.
Fig. 9 is a kind of automobile free style of the utility model belt wheel, the structural representation of dust seal.
Diagram: 1. integrated type mandrel, 11. convex shoulders, 12. arc slope grooves or straight line slope groove, AB. retainer positioning section, BC. changeover portion, CD. wedge section, DE. big cylindrical section, 2. driven pulley, 3. unilateral bearing, 31. two ribs outer ring, 32. supporting needle rollers, 33. supporting needle roller retainers, 34. unidirectional needle roller, 35. unidirectional needle roller retainers, 351. annular end limits, 3511. triangular hill, 352. crossbeams, 3521_ spring positioning seam, 3522. the spring positioning conical surface, 353. fenestras, 36. spring sheets, 361. support plate, 3611. straight flanges, 3612. flangings, 362. holding sheet, 4. block bearing, 41. single block border outer rings, 42. needle roller, 5. dust seal, 51. metal frames, 52. rubber layers, " 521. v " shape or " u " connected in star, 522. arc grooves.
Embodiment
A kind of automobile free style of the utility model belt wheel, embodiment is:
A kind of automobile free style belt wheel, integrated type mandrel 1 with the running shaft end that is fixedly set in alternator, outside integrated type mandrel 1 circumference with this integrated type mandrel 1 concentric driven pulley 2 that is provided with, between integrated type mandrel 1 and driven pulley 2, be provided with unilateral bearing 3 and block bearing 4, the outer ring of unilateral bearing 3 is two rib outer rings 31, the outer ring of block bearing 4 is entity single block border outer ring 41, two ribs outer ring 31, single block border outer ring 41 all cooperates with the endoporus of driven pulley 2, integrated type mandrel 1 front portion is useful on the convex shoulder 11 of unilateral bearing 3 axially locating, the inner ring of unilateral bearing 3, the inner ring of block bearing 4 and integrated type mandrel 1 are structure as a whole, and 2 of integrated type mandrel 1 and driven pulleies all are equipped with dust seal 5 at the front end of unilateral bearing 3 and the rear end of block bearing 4; Unilateral bearing 3 has supporting needle roller 32 and supporting needle roller retainer 33, unidirectional needle roller 34 and unidirectional needle roller retainer 35, supporting needle roller 32 contacts with the inner headed face of two rib outer rings 31 and the periphery rolling of integrated type mandrel 1, unidirectional needle roller 34 contacts with the inner headed face of two rib outer rings 31 and the periphery rolling of integrated type mandrel 1, unidirectional needle roller is provided with the spring sheet 36 that the circumferencial direction elasticity that equates with unidirectional needle roller 34 quantity pushes unidirectional needle roller 34 with retainer 35, be provided with arc slope groove or the straight line slope groove 12 that equates with unidirectional needle roller 34 quantity corresponding to unidirectional needle roller 34 places on integrated type mandrel 1 periphery, arc slope groove or straight line slope groove 12 axial lengths and unidirectional needle roller 34 match, and the smallest radial spacing between the inner headed face of two ribs outer ring 6 and the periphery of integrated type mandrel 1 is less than the diameter of unidirectional needle roller 34, at arc slope groove or straight line slope groove 12 groove depth biggest places diameter greater than unidirectional needle roller 34; Block bearing 4 has needle roller 42, needle roller 42 contacts with the inner headed face of single block border outer ring 41 and the periphery rolling of integrated type mandrel 1, the diameter of unidirectional needle roller 34 is greater than the diameter of supporting needle roller 32 and needle roller 42, unidirectional needle roller 34 diameters increase, help reducing the contact stress of unidirectional needle roller 34 and integrated type mandrel 1 and two rib outer rings 31, improved the fatigue strength of unilateral bearing 3, when unidirectional needle roller 34 diameters during greater than 6.5mm, can cause unidirectional needle roller 34 numbers of circle distribution to reduce again, can reduce the wall thickness of driven pulley 2 simultaneously, finally can cause the bearing capacity of free style belt wheel to reduce, therefore unidirectional needle roller 34 diameters are the needle roller of 4.5～6.5mm.
A kind of automobile free style of the utility model belt wheel, the unidirectional die cavity of molded lines structure or linear structure in unidirectional die cavity can adopt, as shown in Figures 2 and 3, arc slope groove or straight line type slope groove 12 are by retainer positioning section AB, changeover portion BC, wedge section CD and big cylindrical section DE form, retainer positioning section AB intersects with changeover portion BC and is connected, changeover portion BC and tangent connection of wedge section CD, wedge section CD is connected with big cylindrical section DE, described unidirectional needle roller comprises along the axial separated first and second annular end limits 351 of common shaft with retainer 35 and connects the crossbeam 352 on two annular end limits, form the fenestra 353 that keeps unidirectional needle roller 34 between annular end limit 351 and the crossbeam 352, the arc surface of crossbeam 352 internal surfaces for protruding annular end limit 351 and matching with retainer positioning section AB.
Unidirectional needle roller in the utility model uses the structure of retainer shown in Fig. 4～6, the internal surface two ends of crossbeam 352 are provided with spring positioning seam 3521, and the bi-side of crossbeam 352 are provided with the spring positioning conical surface 3522: a triangular hill 3511 that is used for spring sheet 36 location is respectively arranged on the first and second annular end limits 351 at the two ends of fenestra 353; The structure of the spring sheet in the utility model as shown in Figure 7 and Figure 8, spring sheet 36 is made up of supporting part that fuses and retained part, supporting part is the support plate 361 of inward at both ends bending, support plate 361 has straight flange 3611 and two flangings 3612, the end of two flangings 3612 also bends inwards, flanging 3612 terminal bending angle places support unidirectional needle roller 34 and suspend, retained part is two holding sheets 362, and holding sheet 362 upper ends link to each other with the straight flange 3611 of support plate 361, the lower end of holding sheet 362 bends inwards; The holding sheet 362 of spring sheet 36 is clipped in spring positioning seam 3521 places of crossbeam, and the bending angle b of the intersubjective angle a of the straight flange of free state lower support sheet 361 3611 and holding sheet 362 and the lower end of holding sheet 362 is all less than the angle Y of the spring positioning conical surface 3522 with the internal surface of crossbeam 352 of cooperation place crossbeam 352.Angle a is that 73 °～77 °, b are that 73 °～77 °, Y are 78 °～82 ° under the free state, angle a and b than Y little 4 °～6 °.
As shown in Figure 9, dust seal 5 in the utility model comprises the metal frame 51 and the rubber layer 52 that is bonded in metal frame 51 endoporus of annular, metal frame 51 press-fits in driven pulley 2 endoporus, the cylindrical of the endoporus of rubber layer 52 and integrated type mandrel 1 is sealed and matched, the bi-side of rubber layer 52 all have " V " shape or " U " connected in star 521, and the sealing surface of rubber layer 52 has arc groove 522.
Claims (5)
1. automobile free style belt wheel has the integrated type mandrel of the running shaft end that is fixedly set in alternator, outside integrated type mandrel circumference driven pulley is set; Unilateral bearing and block bearing are set between integrated type mandrel and driven pulley, the outer ring of unilateral bearing is two rib outer rings, the outer ring of block bearing is the single block border outer ring, two ribs outer ring, single block border outer ring all cooperate with the center hole of driven pulley, the convex shoulder that is used for the unilateral bearing axially locating is established in whole mandrel front portion, and the inner ring of unilateral bearing, the inner ring of block bearing and mandrel are structure as a whole.
2. a kind of automobile free style belt wheel according to claim 1, it is characterized in that: unilateral bearing comprises supporting needle roller and supporting needle roller retainer, unidirectional needle roller and unidirectional needle roller retainer, the supporting needle roller contacts with the inner headed face of two rib outer rings and the periphery rolling of integrated type mandrel, unidirectional needle roller contacts with the inner headed face of two rib outer rings and the periphery rolling of integrated type mandrel, and unidirectional needle roller is provided with the spring sheet that the circumferencial direction elasticity that equates with unidirectional needle roller quantity pushes unidirectional needle roller with retainer; Be provided with arc slope groove or the straight line slope groove that equates with unidirectional needle roller quantity corresponding to unidirectional needle roller place on the integrated type mandrel periphery, the axial length and the unidirectional needle roller of arc slope groove or straight line slope groove match; Smallest radial spacing between the inner headed face of two ribs outer ring and the periphery of integrated type mandrel is less than the diameter of unidirectional needle roller, at the groove depth biggest place of arc slope groove or the straight line slope groove diameter greater than unidirectional needle roller; Block bearing has needle roller, and needle roller contacts with the inner headed face of single block border outer ring and the periphery rolling of integrated type mandrel, and the diameter of unidirectional needle roller is greater than the diameter of supporting needle roller and needle roller; The diameter of unidirectional needle roller is 4.5～6.5mm.
3. a kind of automobile free style belt wheel according to claim 2, it is characterized in that: arc slope groove is by the retainer positioning section, changeover portion, wedge section and big cylindrical section are formed, the retainer positioning section intersects with changeover portion and is connected, changeover portion is connected with the wedge section is tangent, the wedge section is connected with big cylindrical section, unidirectional needle roller comprises along the axial separated first and second annular end limits of common shaft with retainer and connects the crossbeam on two annular end limits, form the fenestra that keeps unidirectional needle roller between annular end limit and the crossbeam, the arc surface of crossbeam internal surface for protruding the annular end limit and matching with the retainer positioning section, the arc surface that unidirectional needle roller uses the crossbeam internal surface of retainer to protrude, cooperate with the arc slope groove on the integrated type mandrel periphery or the retainer positioning section of straight line slope groove, the wedge section is interior concave circular arc or straight line, the changeover portion of groove straight line slope, the arc slope groove on unidirectional needle roller and the integrated type mandrel periphery contacts with the wedge section, changeover portion and wedge section are tangent be connected to form in the unidirectional die cavity of molded lines structure or linear structure.
4. a kind of automobile free style belt wheel according to claim 3, it is characterized in that: the internal surface two ends of crossbeam are provided with the spring positioning seam, and the bi-side of crossbeam are provided with the spring positioning conical surface; On the first and second annular end limits at the two ends of fenestra, a triangular hill that is used for spring positioning is arranged respectively, spring sheet is made up of supporting part that fuses and retained part, supporting part is the support plate of inward at both ends bending, support plate has straight flange and two flangings, the end of two flangings also bends inwards, the terminal bending angle of flanging place supports unidirectional needle roller and suspends, and retained part is two holding sheets, and the holding sheet upper end links to each other with the straight flange of support plate, the lower end of holding sheet bends inwards; The holding sheet of spring sheet is clipped in the spring positioning stop portion of crossbeam, and the bending angle b of intersubjective angle a of the straight flange of free state lower support sheet and holding sheet and holding sheet lower end is all less than the angle Y of the spring positioning conical surface and the crossbeam internal surface of cooperation place crossbeam.
5. a kind of automobile free style belt wheel according to claim 4, it is characterized in that: the intersubjective angle a of the straight flange of free state lower support sheet and holding sheet is 73 °～77 °, the bending angle b of the lower end of holding sheet is 73 °～77 °, the angle Y of the spring positioning conical surface of crossbeam and the internal surface of crossbeam is 78 °～82 °, angle a and b than Y little 4 °～6 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200291704U CN202001583U (en) | 2011-01-28 | 2011-01-28 | Freestyle belt pulley of automobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200291704U CN202001583U (en) | 2011-01-28 | 2011-01-28 | Freestyle belt pulley of automobiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001583U true CN202001583U (en) | 2011-10-05 |
Family
ID=44704324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200291704U Expired - Fee Related CN202001583U (en) | 2011-01-28 | 2011-01-28 | Freestyle belt pulley of automobiles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001583U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878226A (en) * | 2012-10-20 | 2013-01-16 | 无锡市神力齿轮冷挤有限公司 | Unidirectional needle bearing with support |
| CN103234025A (en) * | 2013-05-09 | 2013-08-07 | 无锡市神力齿轮冷挤有限公司 | Positioning one-way belt pulley of automobile engine |
| CN103557306A (en) * | 2013-07-17 | 2014-02-05 | 杭州雷迪克汽车部件制造有限公司 | One-way overrunning belt pulley of power generator of automobile |
| CN105121872A (en) * | 2013-03-13 | 2015-12-02 | 光洋轴承北美有限责任公司 | Axially self-positioning radial support bearing |
| CN106884965A (en) * | 2017-03-17 | 2017-06-23 | 无锡市神力齿轮冷挤有限公司 | The frictional one-way belt sheave of roller |
| CN107289088A (en) * | 2016-04-12 | 2017-10-24 | 福特全球技术公司 | The Zona transformans wheel assembly of two-piece type zero with external bearings raceway |
| CN109764070A (en) * | 2019-03-11 | 2019-05-17 | 江苏南方轴承股份有限公司 | A kind of I. C. engine crankshaft decoupler |
| CN110345228A (en) * | 2018-04-03 | 2019-10-18 | 斯凯孚公司 | For idler roller or the pulley arrangement of take-up roll |
-
2011
- 2011-01-28 CN CN2011200291704U patent/CN202001583U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878226A (en) * | 2012-10-20 | 2013-01-16 | 无锡市神力齿轮冷挤有限公司 | Unidirectional needle bearing with support |
| CN105121872A (en) * | 2013-03-13 | 2015-12-02 | 光洋轴承北美有限责任公司 | Axially self-positioning radial support bearing |
| CN105121872B (en) * | 2013-03-13 | 2017-11-14 | 光洋轴承北美有限责任公司 | Axially self-positioning radial support bearing |
| US9850947B2 (en) | 2013-03-13 | 2017-12-26 | Koyo Bearings North America Llc | Axially self-positioning radial support bearing |
| CN103234025A (en) * | 2013-05-09 | 2013-08-07 | 无锡市神力齿轮冷挤有限公司 | Positioning one-way belt pulley of automobile engine |
| CN103557306A (en) * | 2013-07-17 | 2014-02-05 | 杭州雷迪克汽车部件制造有限公司 | One-way overrunning belt pulley of power generator of automobile |
| CN107289088A (en) * | 2016-04-12 | 2017-10-24 | 福特全球技术公司 | The Zona transformans wheel assembly of two-piece type zero with external bearings raceway |
| CN107289088B (en) * | 2016-04-12 | 2021-08-06 | 福特全球技术公司 | Two-piece zero distortion pulley assembly with external bearing raceways |
| CN106884965A (en) * | 2017-03-17 | 2017-06-23 | 无锡市神力齿轮冷挤有限公司 | The frictional one-way belt sheave of roller |
| CN110345228A (en) * | 2018-04-03 | 2019-10-18 | 斯凯孚公司 | For idler roller or the pulley arrangement of take-up roll |
| CN109764070A (en) * | 2019-03-11 | 2019-05-17 | 江苏南方轴承股份有限公司 | A kind of I. C. engine crankshaft decoupler |
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