CN105041995A - Installing structure for idler wheel - Google Patents
Installing structure for idler wheel Download PDFInfo
- Publication number
- CN105041995A CN105041995A CN201510514999.6A CN201510514999A CN105041995A CN 105041995 A CN105041995 A CN 105041995A CN 201510514999 A CN201510514999 A CN 201510514999A CN 105041995 A CN105041995 A CN 105041995A
- Authority
- CN
- China
- Prior art keywords
- bolt
- bearing
- mounting platform
- ladder cylinder
- idle pulley
- 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.)
- Pending
Links
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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/18—Means for guiding or supporting belts, ropes, or chains
- F16H7/20—Mountings for rollers or pulleys
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention provides an installing structure for an idler wheel. The installing structure comprises the idler wheel for guiding a guide engine front end gear train belt, bearings, an installing table and a bolt. The outer rings of the bearings are sleeved with installing shaft holes of the idler wheel. The installing table is formed on an engine cylinder block and is adjacent to the idler wheel. The bolt sequentially penetrates the inner rings of the bearings, stretches into a bolt hole formed in the installing table and is fastened to the installing table. Stepped column bodies are axially arranged between the installing table and the bearings. The small-head ends of the stepped column bodies with the settable length are fastened and pressed into the inner rings of the bearings to be matched with a bolt cap of the bolt to clamp the inner rings of the bearings, the large-head ends of the stepped column bodies are fixedly connected with the installing table, and therefore the problem of limitation of the length and the size of the installing table is solved; and the axial position can be flexibly adjusted, and the universalization rate of the engine cylinder block is increased.
Description
Technical field
The invention belongs to internal-combustion engine front end wheel train field, be specifically related to a kind of internal-combustion engine front end wheel train idler gear mounting arrangement.
Background technique
In motor front-end wheel system working procedure, belt the rotarily driving and leading by idle pulley in front end wheel train of leading portion train wheel operation.The leading portion train idler gear mounting arrangement of prior art is as shown in Figure 1 to Figure 3:
Leading portion train idler gear mounting arrangement is made up of the mounting platform 8 of lug formula long on bolt 1, dust cover 2, belt pulley 3, bearing 4, pad 5, engine cylinder-body; Bearing 4 is arranged in belt pulley 3 installation axle hole, mounting platform 8 has keyhole, dust cover 2 covers bearing side, bolt 1 is successively through dust cover 2, the inner ring of bearing 4, pad 5 extend in the keyhole of mounting platform bearing inner race, pad are pressed on mounting platform side, and now bearing 4 outer ring can drive belt pulley to rotate around bolt.
Because the idle pulley in this front end wheel train is Bolt to position, positioning precision is not high, and on axial position controls, need mounting platform by cylinder body extending long lug formula by the fastening idler system of bolt mode, when different size idle pulley is installed, need coupling different size mounting platform and then need engine cylinder-body die sinking again, being unfavorable for cylinder body versatility.
Summary of the invention
The object of the present invention is to provide a kind of idler gear mounting arrangement, solve when different size idle pulley is installed and engine cylinder-body needs to arrange different size mounting platform, the problem that engine cylinder-body versatility is not high.
Idler gear mounting arrangement disclosed by the invention, comprise: the idle pulley of guided engine front end wheel train belt, bearing outer ring is locked the bearing in described idle pulley installation axle hole, to be molded on engine cylinder-body or to be close to the mounting platform of idle pulley on engine bracker or on engine front housing, successively through bearing inner race, stretch into keyhole the bolt fastening with mounting platform that mounting platform has, between mounting platform and bearing, axially a ladder cylinder is set, ladder cylinder to be coordinated with little head end by stub end and limits out hierarchic structure, described ladder cylinder and coaxial bearing are also fixedly set on bolt key by the axial hole that ladder cylinder has, bolt compresses bearing inner race by bolt cap to mounting platform direction, ladder cylinder, the little head end fastener of ladder cylinder enters bearing inner race, hierarchic structure on ladder cylinder and bolt bolt cap compress the mutual alignment of limiting bearing inner race and bolt respectively in opposite directions from bearing inner race both sides, idle pulley rotates around bolt under bearing outer ring drives.
Further, the axial hole that ladder cylinder has radially expands near mounting platform one end outputs the first coaxial pin-and-hole, and the keyhole of mounting platform has the second pin-and-hole at corresponding position; In locating stud two difference force fit first and second pin-and-hole, ladder cylinder is located.
Further, described locating stud is cast locating stud.
Further, also comprise a dust cover, described dust cover is arranged between the bolt cap of bolt and bearing side, is covered the side of part idle pulley and whole bearing by bolt presses.
The present invention has the following advantages: the fastening press-in bearing inner race of the little head end of ladder cylinder that can be set by length is coordinated with bolt bolt cap and clamps bearing inner race, ladder cylinder stub end is fixedly connected with peace state, solve mounting platform length, size limitations sex chromosome mosaicism, axial position flexible adjustment, the general rate of engine cylinder-body improves; In addition, the axial hole suit that ladder cylinder is opened by it is fixed on bolt key, and hierarchic structure and bolt bolt cap clamp bearing inner race in opposite directions, limit idle pulley and bolt relative position, ensure that idler shaft is to installation precision; Interference fit pin-and-hole and locating stud are set at the axial hole of ladder cylinder and mounting platform keyhole docking port, improve idle pulley installation shaft further to precision.
Accompanying drawing explanation
Fig. 1 is prior art idle pulley fundamental diagram;
Fig. 2 is prior art idle pulley assembly schematic diagram;
Fig. 3 is prior art idle pulley scheme of installation;
Fig. 4 is idle pulley assembly schematic diagram of the present invention;
Fig. 5 is idle pulley scheme of installation of the present invention;
Fig. 6 is idle pulley ladder column structure schematic diagram of the present invention;
Fig. 7 assembles schematic diagram according to the idle pulley ladder cylinder of Fig. 6 and bearing and locating stud;
Wherein: 1-bolt, 2-dust cover, 3-belt pulley, 4-bearing, 41-bearing inner race, 42-bearing outer ring, 5-pad, 6-mounting platform, 61-keyhole, 62-second pin-and-hole, 7-locating stud, 8-ladder cylinder, 81-hierarchic structure, 82-first pin-and-hole, 83-through hole, 9-front end wheel train, 10-belt.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
A kind of idler gear mounting arrangement of the present invention, be mainly used in motor front-end wheel system, as Fig. 1, shown in Fig. 4 to Fig. 7, comprise: the idle pulley 3 of the belt 10 of guided engine front end wheel train 9, bearing outer ring 42 is locked the bearing 4 in described idle pulley installation axle hole, to be molded on engine cylinder-body and the mounting platform 6 of next-door neighbour's idle pulley, successively through bearing inner race 41, stretch into keyhole 61 bolt 1 fastening with mounting platform that mounting platform has, between mounting platform 6 and bearing 4, axially a ladder cylinder 8 is set, ladder cylinder to be coordinated with little head end by stub end and limits out hierarchic structure 81, described ladder cylinder 8 is coaxial and be fixedly set on bolt key by the axial hole 83 that ladder cylinder has with bearing 4, bolt compresses bearing inner race 41 by bolt cap to mounting platform direction, ladder cylinder 8, the little head end fastener of ladder cylinder enters bearing inner race 41, hierarchic structure 81 on ladder cylinder compresses the mutual alignment of limiting bearing inner race and bolt respectively in opposite directions with bolt bolt cap from bearing inner race both sides, idle pulley 3 rotates around bolt under bearing outer ring drives.
In order to prevent dust, between the bolt cap and bearing 4 side of bolt, arrange a dust cover 2, dust cover 2 covers the side of part idle pulley 3 and whole bearing by bolt presses.
The axial hole 83 that ladder cylinder has radially expands near mounting platform one end outputs the first coaxial pin-and-hole 82, and the keyhole 61 of mounting platform has the second pin-and-hole 62 at corresponding position; In cast locating stud 7 two difference force fit the one 82 and the 2 62 pin-and-hole, ladder cylinder is located.
The little head end of ladder cylinder is optional to be selected interference fit and realizes fasteningly snapping in bearing inner race 41.
In ladder cylinder 8, hierarchic structure 81 effect is spacing, restriction idle pulley 3 moves axially, control the axial distance of idle pulley 3 apart from mounting platform 6 by the axial length controlling ladder cylinder 8, it is interference fit that the little head end of ladder cylinder snaps in bearing inner race 41 with bearing inner race 41.
Owing to increasing ladder cylinder 8, be in contact with it end at mounting platform 6 and use locating stud 7 to locate, positioning precision promotes.
Some idle pulley of front end wheel train is also arranged on engine bracker and engine front cover housing, and the belt 10 for close positions leads, therefore mounting platform 6 also can be molded on engine bracker and on engine front housing.
In sum, the idler gear mounting arrangement advantage of front end wheel train disclosed by the invention has: one, positioning precision is high.Two, axial position flexible adjustment.Can solve common front end wheel train idle pulley positional accuracy not high, axial position regulates dumb, is unfavorable for the problems such as cylinder body generalization.
Claims (4)
1. idler gear mounting arrangement, comprise: the idle pulley (3) of guided engine front end wheel train belt, bearing outer ring (42) is locked the bearing (4) in the installation axle hole of described idle pulley, to be molded on engine cylinder-body or to be close to the mounting platform (6) of idle pulley on engine bracker or on engine front housing, successively through bearing inner race (41), stretch into keyhole (61) the bolt fastening with mounting platform (1) that mounting platform has, it is characterized in that: between mounting platform (6) and bearing (4), axially a ladder cylinder (8) is set, ladder cylinder to be coordinated with little head end by stub end and limits out hierarchic structure (81), described ladder cylinder (8) is coaxial and be fixedly set on bolt key by the axial hole (83) that ladder cylinder has with bearing (4), bolt compresses bearing inner race (41) by bolt cap to mounting platform direction, ladder cylinder (8), the little head end fastener of ladder cylinder enters bearing inner race (41), hierarchic structure (81) on ladder cylinder and bolt bolt cap compress the mutual alignment of limiting bearing inner race and bolt respectively in opposite directions from bearing inner race both sides, idle pulley (3) rotates around bolt under bearing outer ring drives.
2. idler gear mounting arrangement as claimed in claim 1, it is characterized in that: the axial hole (83) that ladder cylinder has radially expands near mounting platform one end outputs coaxial the first pin-and-hole (82), and the keyhole (61) of mounting platform has the second pin-and-hole (62) at corresponding position; Locating stud (7) two is distinguished in force fit first pin-and-hole (82) and the second pin-and-hole (62), locates ladder cylinder.
3. idler gear mounting arrangement as claimed in claim 2, is characterized in that: described locating stud (7) is cast locating stud.
4. the idler gear mounting arrangement as described in claim 1 or 2 or 3, it is characterized in that: also comprise a dust cover (2), described dust cover (2) is arranged between the bolt cap of bolt and bearing (4) side, is covered the side of part idle pulley (3) and whole bearing by bolt presses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510514999.6A CN105041995A (en) | 2015-08-21 | 2015-08-21 | Installing structure for idler wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510514999.6A CN105041995A (en) | 2015-08-21 | 2015-08-21 | Installing structure for idler wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105041995A true CN105041995A (en) | 2015-11-11 |
Family
ID=54448815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510514999.6A Pending CN105041995A (en) | 2015-08-21 | 2015-08-21 | Installing structure for idler wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105041995A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068907A (en) * | 1976-12-23 | 1978-01-17 | Zenthoefer Edwin A | Pulley mounting |
| EP1120584A1 (en) * | 2000-01-26 | 2001-08-01 | Dr.Ing. h.c.F. Porsche Aktiengesellschaft | Deflection or tensioning roller of a belt drive of an internal combustion engine |
| CN102066777A (en) * | 2008-06-23 | 2011-05-18 | Skf公司 | Pulley device for tensioning idler or runner roller |
| CN102109031A (en) * | 2009-12-23 | 2011-06-29 | Skf公司 | Pulley device for a tensioning or guide Roller |
| CN202851889U (en) * | 2012-09-11 | 2013-04-03 | 中国航空动力机械研究所 | Box body connection structure |
-
2015
- 2015-08-21 CN CN201510514999.6A patent/CN105041995A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068907A (en) * | 1976-12-23 | 1978-01-17 | Zenthoefer Edwin A | Pulley mounting |
| EP1120584A1 (en) * | 2000-01-26 | 2001-08-01 | Dr.Ing. h.c.F. Porsche Aktiengesellschaft | Deflection or tensioning roller of a belt drive of an internal combustion engine |
| CN102066777A (en) * | 2008-06-23 | 2011-05-18 | Skf公司 | Pulley device for tensioning idler or runner roller |
| CN102109031A (en) * | 2009-12-23 | 2011-06-29 | Skf公司 | Pulley device for a tensioning or guide Roller |
| CN202851889U (en) * | 2012-09-11 | 2013-04-03 | 中国航空动力机械研究所 | Box body connection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |