CN203463600U - Belt wheel assembly - Google Patents

Belt wheel assembly Download PDF

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Publication number
CN203463600U
CN203463600U CN201320590412.6U CN201320590412U CN203463600U CN 203463600 U CN203463600 U CN 203463600U CN 201320590412 U CN201320590412 U CN 201320590412U CN 203463600 U CN203463600 U CN 203463600U
Authority
CN
China
Prior art keywords
retainer
bolt
bearing
pulley assemblies
inner race
Prior art date
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.)
Expired - Fee Related
Application number
CN201320590412.6U
Other languages
Chinese (zh)
Inventor
杜方瑞
傅红良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GATES UNITTA POWER TRANSMISSION (SHANGHAI) CO Ltd
Original Assignee
GATES UNITTA POWER TRANSMISSION (SHANGHAI) CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GATES UNITTA POWER TRANSMISSION (SHANGHAI) CO Ltd filed Critical GATES UNITTA POWER TRANSMISSION (SHANGHAI) CO Ltd
Priority to CN201320590412.6U priority Critical patent/CN203463600U/en
Application granted granted Critical
Publication of CN203463600U publication Critical patent/CN203463600U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
    • 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
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/63—Gears with belts and pulleys
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/073—Fixing them on the shaft or housing with interposition of an element between shaft and inner race ring
    • 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
    • F16C41/04—Preventing damage to bearings during storage or transport thereof or when otherwise out of use
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0863—Finally actuated members, e.g. constructional details thereof
    • F16H2007/0865—Pulleys

Landscapes

  • Pulleys (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

The utility model discloses a belt wheel assembly which comprises a bearing, a belt wheel and a bolt, wherein the bearing comprises an inner fixed ring and an outer ring capable of rotating around the inner ring; an inner hole is formed in the inner ring; the belt wheel is fixed on the outer ring of the bearing; the bolt comprises a tail part and a screw part. The belt wheel assembly also comprises a circular retainer arranged between the bolt and the bearing; the inner rim of the retainer is in interference fit with the screw part of the bolt; the outer rim of the retainer is in interference with the inner hole of the inner ring of the bearing. The retainer is arranged between the bearing and the bolt in a pressing manner and is in interference fit with the inner ring of the bearing and the bolt respectively, so that the bolt and the bearing can be stably combined with each other in the transportation process; furthermore, the retainer is simple in structure, convenient to mount and low in cost.

Description

Pulley assemblies
Technical field
The utility model relates to a kind of pulley assemblies, relates in particular to motor and uploads the pulley assemblies that moving part transmission is used.
Background technique
In transmission system on vehicular engine, conventionally by driving component, as belt or chain are sent to each assembly by the power of motor, belt wheel are conventionally set in this transmission system and transmit this driving component.
Conventionally belt wheel comprises the belt pulley of metal or plastic material and is arranged on the bearing of belt pulley radially inner side, and the two is combined closely by interference fit.This belt wheel is bolted to motor or support, described bolt is through belt wheel, the two forms pulley assemblies, this pulley assemblies is in being carried to the process of subsequent processing, between bolt and belt wheel, can produce and rock and scatter because do not fix, the follow-up staff that pulley assemblies is mounted to motor or support also needs again bolt, through belt wheel, to make follow-up work personnel repeat leading portion staff's work; And between bolt and belt wheel, because do not interfix, be difficult to operate and be assembled to motor or support.
In order to overcome above-mentioned defect, in the disclosed Chinese CN102066777A patent application of Sweden Aktiebolaget SKF, disclosed spacer has been set between bolt and bearing, groove is set on bolt, retaining ring is set in groove, retaining ring by bolt and upper setting thereof is passed spacer, and retaining ring is held on spacer, realize the fixing of bolt and tensioning idle pulley.First, this product needed is carried out further additional processing to bolt, to realize groove structure, increases cost, and groove may make bolt stress concentrate and damage; Secondly whole retaining ring and retaining structure thereof are comparatively complicated, and holding action need to could be realized by retaining ring, bolt, spacer, four parts actings in conjunction of bearing inner race, have increased the cost of the manufacturing and the cost of labor of assembling; Finally this retaining ring has higher requirements to the machining accuracy of the groove of bolt and retaining ring self, could realize and keep preferably effect.
In sum, be necessary to provide a kind of novel pulley assemblies, it has improved structure to overcome the defect of existing pulley assemblies.
Model utility content
The purpose of this utility model is to provide a kind of pulley assemblies of improving structure that has, and it is simple in structure, and bolt can better be remained on belt wheel.
In order to solve the problems of the technologies described above, a kind of pulley assemblies, comprising: bearing, and described bearing comprises fixing inner ring and the outer ring that can rotate around inner ring, described inner ring is provided with endoporus; Belt pulley, is fixed on bearing outer ring; Bolt, described bolt comprises afterbody and screw part; Pulley assemblies also comprise be arranged between bolt and bearing, become circular retainer, the screw part interference fit of the inner edge of retainer and bolt, the endoporus interference fit of retainer outer rim and bearing inner race.
Preferably, the inner edge of retainer arranges some and projection screw part interference fit, and the outer rim of retainer arranges the projection of the endoporus interference fit of some and bearing inner race.
Preferably, retainer is arranged on one end of the contiguous bolt tail of screw part.
Preferably, be assembled to before bearing inner race the mutual interference fit of the inner edge of retainer and screw part.
Preferably, retainer, is assembled to bolt and is pressed into bearing inner race through after bearing inner race at bolt.
Preferably, the outer rim of retainer is provided with the groove extending vertically, forms projection between groove.
Preferably, the afterbody of described bolt is provided with flange part, axial end of described retainer and the flange part butt of bolt tail.
Preferably, the afterbody of described bolt is provided with flange part, and flange part and bearing inner race connect.
Preferably, retainer is cirque structure complete, sealing.
Preferably, at retainer, be assembled to after bearing inner race, at least one axial end of retainer is between two axial ends of bearing inner race; Another axial end of retainer can be between two axial end of bearing inner race or is coplanar with an axial end of bearing inner race
The technological scheme that the utility model adopts is provided with retainer by press-fit approach between bearing and bolt, this retainer respectively with bearing inner race and bolt interference fit, guaranteed the stable bond of bolt and bearing in transportation process, and retainer is simple in structure, easy for installation, with low cost.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of the utility model pulley assemblies.
Fig. 2 is the sectional view of the utility model pulley assemblies.
Embodiment
Below in conjunction with accompanying drawing detailed introduce embodiment of the present utility model.
Ginseng Fig. 1 and Fig. 2, the utility model pulley assemblies 100 comprises bearing 4, and bearing 4 comprises fixing inner ring 41 and the outer ring 42 that can rotate around inner ring 41, and inner ring 41 is provided with endoporus 43; Belt pulley 1, this belt pulley 1 is fixed on bearing 4 outer rings 42; Bolt 2, comprises afterbody 22 and screw part 21, and the afterbody 22 of bolt 2 is provided with flange part 23, and flange part 23 connects with bearing 4 inner rings 41.
Pulley assemblies 100 also comprise be arranged between bolt 2 and bearing 4, become circular retainer 3, retainer 3 is cirque structure complete, sealing, the inner edge 34 of retainer 3 and screw part 21 interference fit of bolt 2, endoporus 43 interference fit of retainer 3 outer rims 35 and bearing 4 inner rings 41.Wherein the inner edge 34 of retainer 3 arranges some and projections 31 screw part 21 interference fit, and the outer rim 35 of retainer 3 arranges the projection 32 of endoporus 43 interference fit of some and bearing 4 inner rings 41.The outer rim 35 of retainer 3 is provided with the groove 33 extending vertically, forms described projection 32 between groove 33.
In a preferred embodiment, first the screw part of bolt 2 21 is passed to bearing 4 inner rings 41, then from screw part 21, away from one end of afterbody 22, assemble retainer 3 to screw part 21, the wherein inner edge 34 of retainer 3 and the mutual interference fit of screw part 21, mode by mechanical press mounting is pressed into bearing 4 inner rings 41 by retainer 3 again, now endoporus 43 interference fit of retainer 3 outer rims 35 and bearing 4 inner rings 41.After having assembled, retainer 3 is arranged on screw part 21 away from one end of bolt 2 afterbodys 22.
In other embodiments, bolt 2 and retainer 3 are assembled to before bearing 4 inner rings 41, and retainer 3 is first assembled to bolt 2, wherein the inner edge 34 and the mutual interference fit of screw part 21 of retainer 3.Then screw part 21 is passed bearing 4 inner rings 41, and to bolt 2 afterbodys 22, applies active force by the mode of mechanical press mounting, makes retainer 3 be pressed into bearing 4 inner rings 41, now endoporus 43 interference fit of retainer 3 outer rims 35 and bearing 4 inner rings 41.After having assembled, retainer 3 is arranged on one end of screw part 21 contiguous bolt 2 afterbodys 22.
At retainer 3, be assembled to after bearing 4 inner rings 41, retainer 3 at least one axial end 36 are between two axial ends 411,412 of bearing 4 inner rings 41; Another axial end 37 of retainer 3 can be between two axial end 411,412 of bearing 4 inner rings 41 or is coplanar with an axial end 412 of bearing 4 inner rings 41.After this retainer 3 has assembled, be housed in pulley assemblies 100 inside, can not exert an influence to the follow-up assembling of pulley assemblies 100.
The afterbody 22 of bolt 2 is provided with flange part 23, an axial end 36 of retainer 3 and flange part 23 butts of bolt 2 afterbodys 22.
Compared to existing technology, this pulley assemblies 100 is only provided with the ring retainer 3 of a plastic material, and coordinates with bolt 2 interference fit, outer rim 35 the stable fixing of realizing bolt 2 and bearing 4 by the inner edge 34 of this ring retainer 3 with bearing 4 inner rings 41.In the transportation process of pulley assemblies 100, bolt 2 can not come off in bearing 4, is convenient to carrying and follow-up this pulley assemblies 100 is mounted to other equipment.This ring retainer 3 is simple in structure, is easy to produce, with low cost, and than being easier to accommodate to the space between bearing 4 inner rings 41 and bolt 2, also can not exert an influence to the follow-up assembling of pulley assemblies 100.
Technique scheme is only the explanation to the utility model embodiment, is not limitation of the utility model, and the equivalent variation that all those skilled in the art carry out according to creation of the present utility model all belongs to protection domain of the present utility model.

Claims (10)

1. a pulley assemblies, comprising: bearing, and described bearing comprises fixing inner ring and the outer ring that can rotate around inner ring, described inner ring is provided with endoporus; Belt pulley, is fixed on bearing outer ring; Bolt, described bolt comprises afterbody and screw part; It is characterized in that: pulley assemblies also comprise be arranged between bolt and bearing, become circular retainer, the screw part interference fit of the inner edge of retainer and bolt, the endoporus interference fit of retainer outer rim and bearing inner race.
2. pulley assemblies according to claim 1, is characterized in that: the inner edge of described retainer arranges some and projection screw part interference fit, and the outer rim of retainer arranges the projection of the endoporus interference fit of some and bearing inner race.
3. pulley assemblies according to claim 1, is characterized in that: described retainer is arranged on one end of the contiguous bolt tail of screw part.
4. according to the pulley assemblies described in claim 1 or 3, it is characterized in that: be assembled to before bearing inner race the mutual interference fit of the inner edge of retainer and screw part.
5. according to the pulley assemblies described in claim 1 or 3, it is characterized in that: described retainer, is assembled to bolt and is pressed into bearing inner race through after bearing inner race at bolt.
6. pulley assemblies according to claim 1 and 2, is characterized in that: the outer rim of described retainer is provided with the groove extending vertically, forms projection between groove.
7. pulley assemblies according to claim 1, is characterized in that: the afterbody of described bolt is provided with flange part, axial end of described retainer and the flange part butt of bolt tail.
8. according to the pulley assemblies described in claim 1 or 7, it is characterized in that: the afterbody of described bolt is provided with flange part, flange part and bearing inner race connect.
9. pulley assemblies according to claim 1, is characterized in that: described retainer is cirque structure complete, sealing.
10. pulley assemblies according to claim 1, is characterized in that: at retainer, be assembled to after bearing inner race, at least one axial end of retainer is between two axial ends of bearing inner race; Another axial end of retainer can be between two axial end of bearing inner race or is coplanar with an axial end of bearing inner race.
CN201320590412.6U 2013-09-12 2013-09-12 Belt wheel assembly Expired - Fee Related CN203463600U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320590412.6U CN203463600U (en) 2013-09-12 2013-09-12 Belt wheel assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320590412.6U CN203463600U (en) 2013-09-12 2013-09-12 Belt wheel assembly

Publications (1)

Publication Number Publication Date
CN203463600U true CN203463600U (en) 2014-03-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320590412.6U Expired - Fee Related CN203463600U (en) 2013-09-12 2013-09-12 Belt wheel assembly

Country Status (1)

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CN (1) CN203463600U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104930051A (en) * 2014-03-19 2015-09-23 Skf公司 Idler Or Roller Device
GB2527180A (en) * 2014-04-11 2015-12-16 Skf Ab A pulley device for a belt or chain, method for manufacturing a hollow shaft for such a device and method for assembling such a device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104930051A (en) * 2014-03-19 2015-09-23 Skf公司 Idler Or Roller Device
CN104930051B (en) * 2014-03-19 2018-12-04 Skf公司 Jockey pulley or roll device
GB2527180A (en) * 2014-04-11 2015-12-16 Skf Ab A pulley device for a belt or chain, method for manufacturing a hollow shaft for such a device and method for assembling such a device

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140305

Termination date: 20210912

CF01 Termination of patent right due to non-payment of annual fee