CN109812566A - A kind of idle pulley - Google Patents
A kind of idle pulley Download PDFInfo
- Publication number
- CN109812566A CN109812566A CN201910250837.4A CN201910250837A CN109812566A CN 109812566 A CN109812566 A CN 109812566A CN 201910250837 A CN201910250837 A CN 201910250837A CN 109812566 A CN109812566 A CN 109812566A
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- CN
- China
- Prior art keywords
- idle pulley
- wheel hub
- dustproof cover
- outer cylinder
- wheel rim
- 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.)
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Abstract
The present invention relates to a kind of idle pulleys, including the idle pulley body being made of plastics, idle pulley body includes the wheel hub, spoke and wheel rim being sequentially connected, spoke is between wheel hub and wheel rim, the outer surface of wheel rim is for the outer cylinder surface in conjunction with belt, idle pulley body further includes a plurality of reinforcing rib being connected with the inner surface of wheel rim, and multiple salient points outwardly protruded in outer cylinder surface are evenly distributed on outer cylinder surface.The advantage of the invention is that order noise can be decreased or even eliminated by being uniformly arranged multiple salient points on the outer cylinder surface of wheel rim；Heat dissipation is exhausted in heat release hole by the way that taper is arranged, and on the basis of guaranteeing dust-proof effect, the overheating air flow of bearing can effectively be discharged, prevent bearing running hot.
Description
Technical field
The present invention relates to auto parts and components, and in particular to a kind of idle pulley.
Background technique
Existing engine accessory wheel system with plastics idle pulley assembly be usually by plastics idle pulley ontology, bearing, dustproof cover with
And the components such as installation bolt form, and the reinforcing rib of booster action has been typically provided on plastics idle pulley ontology.In practice
It was found that there is a problem of that noise is larger at above-mentioned plastics idle pulley assembly in engine operation process；Existing plastics are lazy simultaneously
All have the good dustproof cover of leakproofness on wheel assembly, though blocking the foreign matters such as dust, liquid in advance enters bearing, in engine
In operational process, quick heating at bearing, the dustproof cover of favorable sealing property is unfavorable for radiating, so as to cause bearing life reduction.
Summary of the invention
The purpose of the present invention is to propose to a kind of idle pulleys, to reduce idle pulley generated noise at runtime.
A kind of idle pulley of the present invention, including the idle pulley body being made of plastics, the idle pulley body include the wheel hub being sequentially connected,
Spoke and wheel rim, for the spoke between the wheel hub and the wheel rim, the outer surface of the wheel rim is to be used for and belt
In conjunction with outer cylinder surface, the idle pulley body further includes the reinforcing rib that a plurality of inner surface with the wheel rim is connected, described outer
Multiple outwardly protrude in the salient point of the outer cylinder surface is evenly distributed on periphery.
Further, polygonal region is surrounded as vertex using the salient point, the outer cylinder surface expansion is formed by flat
The polygonal region every square centimeter not overlapped at least three on face.
It further, further include the dustproof cover being connected on the idle pulley body, the dustproof cover covers one end of the wheel hub,
The dustproof cover is equipped with the heat release hole being connected with the centre bore of the wheel hub.
Further, the heat release hole is bellmouth, the centre bore of the bigger diameter end of the bellmouth towards the wheel hub.
Further, the dustproof cover is equipped with a heat release hole, and the heat release hole is arranged in the dustproof cover
The heart.
Further, the external cylindrical surface of one end of the wheel hub is equipped with annular groove, and the dustproof cover is equipped with along described anti-
The equally distributed multiple card bases of the circumferential direction of dirt lid, multiple card bases engage with the annular groove, the dustproof cover are connected
It connects on the idle pulley body.
Further, bearing is equipped in the centre bore of the wheel hub.
Further, a plurality of reinforcing rib is uniformly distributed along the circumferential direction of the idle pulley body.
Further, a plurality of reinforcing rib is connected with the wheel hub, and a plurality of reinforcing rib is connected with the spoke.
Further, the two sides of the spoke are equipped with a plurality of reinforcing rib.
The advantage of the invention is that can be reduced even by being uniformly arranged multiple salient points on the outer cylinder surface of wheel rim
Eliminate order noise；Heat dissipation is exhausted in heat release hole by the way that taper is arranged, on the basis of guaranteeing dust-proof effect, can effectively arrange
The overheating air flow of bearing out prevents bearing running hot.
Detailed description of the invention
Fig. 1 is the explosive view of idle pulley as described in the examples；
Fig. 2 is the cross-sectional view of idle pulley as described in the examples；
Fig. 3 is the distribution map of reinforcing rib；
Fig. 4 is the cross-sectional view of dustproof cover.
In figure: 1-wheel rim；2-wheel hubs；3-spokes；4-reinforcing ribs；5-outer cylinder surfaces；6-salient points；7-bearings；
8-dustproof covers；9-card bases；10-heat release holes.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
A kind of idle pulley as shown in Figures 1 to 4, including the idle pulley body being made of plastics, idle pulley body includes being sequentially connected
Wheel hub 2, spoke 3 and wheel rim 1, for spoke 3 between wheel hub 2 and wheel rim 1, the outer surface of wheel rim 1 is in conjunction with belt
Outer cylinder surface 5, idle pulley body further includes the reinforcing rib 4 that a plurality of inner surface with wheel rim 1 is connected, on outer cylinder surface 5
It is even that multiple salient points 6 outwardly protruded in outer cylinder surface 5, salient point 6 and idle pulley body by integral forming is distributed with.Idle pulley body can pass through modeling
The mode of material injection molding is made.
In the present embodiment, polygonal region is surrounded so that salient point 6 is vertex, the expansion of outer cylinder surface 5 is formed by flat
The polygonal region every square centimeter not overlapped at least three on face.As a preference, institute is unfolded in outer cylinder surface 5
The polygonal region every square centimeter that there are 3 to 6 not overlap in the plane of formation.By adopting the above technical scheme, noise reduction is imitated
Fruit is best.
It in the present embodiment, further include the dustproof cover 8 being connected on idle pulley body, dustproof cover 8 covers one end of wheel hub 2, prevents
Dirt lid 8 is equipped with the heat release hole 10 being connected with the centre bore of wheel hub 2.Further, heat release hole 10 be bellmouth, bellmouth it is big
Diameter end towards wheel hub 2 centre bore, bellmouth can take into account it is dust-proof and exhaust.Further, dustproof cover 8 is equipped with a heat release hole
10, the center of dustproof cover 8 is arranged in heat release hole 10.Further, the external cylindrical surface of one end of wheel hub 2 is equipped with annular groove, dust-proof
Lid 8 is equipped with the equally distributed multiple card bases 9 of circumferential direction along dustproof cover 8, and multiple card bases 9 engage with annular groove, will be dust-proof
Lid 8 is connected on idle pulley body.
In the present embodiment, bearing 7 is equipped in the centre bore of wheel hub 2.
In the present embodiment, a plurality of reinforcing rib 4 is uniformly distributed along the circumferential direction of idle pulley body.
In the present embodiment, a plurality of reinforcing rib 4 is connected with wheel hub 2, and a plurality of reinforcing rib 4 is connected with spoke 3.
In the present embodiment, the two sides of spoke 3 are equipped with a plurality of reinforcing rib 4.
Inventor has found that the outer cylinder surface of existing plastics idle pulley body is smooth surface by analysis, in injection molding, because
The effect of plastics cold and hot internal stress leads on the outer cylinder surface and corresponding position of reinforcing rib and its on outer cylinder surface
There is rule between his position to rise and fall, so that entire outer cylinder surface becomes the prism surface of rule under microstate, lead
The idle pulley body of existing plastics is caused to be easy to appear order noise in the process of running.And the present invention is in the outer cylinder surface of idle pulley body
It is uniformly arranged salient point 6 on 5, entire outer cylinder surface 5 is subdivided into multiple polygonal regions, effectively eliminates the prism of rule
Body surface face, to reduce or even eliminate order noise, while salient point 6 also has certain anti-skidding effect, salient point 6 can directly pass through
The injection mold for adjusting idle pulley body realizes that adjustment process is simple and at low cost, thus be arranged salient point 6 be one kind be easily achieved and
Noise reduction means at low cost.Heat dissipation is exhausted in heat release hole 10 by the way that taper is arranged, on the basis of guaranteeing dust-proof effect, can have
The overheating air flow of the exclusion bearing 7 of effect, prevention bearing 7 overheat.
Claims (10)
1. a kind of idle pulley, including the idle pulley body being made of plastics, the idle pulley body includes the wheel hub (2) being sequentially connected, spoke (3)
With wheel rim (1), between the wheel hub (2) and the wheel rim (1), the outer surface of the wheel rim (1) is the spoke (3)
For the outer cylinder surface (5) in conjunction with belt, the idle pulley body further includes that a plurality of inner surface with the wheel rim (1) is connected
Reinforcing rib (4), it is characterised in that: be evenly distributed with multiple outwardly protrude in the outside cylinder on the outer cylinder surface (5)
The salient point (6) on surface (5).
2. idle pulley according to claim 1, it is characterised in that: polygonal region is surrounded so that the salient point (6) are vertex,
Outer cylinder surface (5) expansion is formed by the polygon every square centimeter not overlapped at least three in plane
Region.
3. idle pulley according to claim 1, it is characterised in that: it further include the dustproof cover (8) being connected on the idle pulley body,
The dustproof cover (8) covers one end of the wheel hub (2), and the dustproof cover (8) is equipped with the centre bore phase with the wheel hub (2)
The heat release hole (10) of connection.
4. idle pulley according to claim 3, it is characterised in that: the heat release hole (10) is bellmouth, the bellmouth
Centre bore of the bigger diameter end towards the wheel hub (2).
5. idle pulley according to claim 3, it is characterised in that: the dustproof cover (8) is equipped with a heat release hole
(10), center of heat release hole (10) setting in the dustproof cover (8).
6. idle pulley according to claim 3, it is characterised in that: the external cylindrical surface of one end of the wheel hub (2) is equipped with ring
Shape slot, the dustproof cover (8) are equipped with the equally distributed multiple card bases (9) of circumferential direction along the dustproof cover (8), multiple cards
Foot (9) engages with the annular groove, and the dustproof cover (8) is connected on the idle pulley body.
7. idle pulley according to claim 1, it is characterised in that: be equipped with bearing (7) in the centre bore of the wheel hub (2).
8. idle pulley according to claim 1, it is characterised in that: circumferential direction of a plurality of reinforcing rib (4) along the idle pulley body
It is uniformly distributed.
9. idle pulley according to claim 1, it is characterised in that: a plurality of reinforcing rib (4) with the wheel hub (2) phase
Even, a plurality of reinforcing rib (4) is connected with the spoke (3).
10. idle pulley according to claim 1, it is characterised in that: the two sides of the spoke (3) are equipped with a plurality of reinforcement
Muscle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910250837.4A CN109812566A (en) | 2019-03-29 | 2019-03-29 | A kind of idle pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910250837.4A CN109812566A (en) | 2019-03-29 | 2019-03-29 | A kind of idle pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109812566A true CN109812566A (en) | 2019-05-28 |
Family
ID=66610936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910250837.4A Pending CN109812566A (en) | 2019-03-29 | 2019-03-29 | A kind of idle pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109812566A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000337481A (en) * | 1999-05-27 | 2000-12-05 | Nsk Ltd | Pulley made of resin |
| CN1322376C (en) * | 2001-05-25 | 2007-06-20 | 富士施乐株式会社 | Driving force transfer device and imagina apparatus using the same device |
| WO2008141466A1 (en) * | 2007-05-23 | 2008-11-27 | Litens Automotive Partnership | Center-gated molded pulley and method of manufacturing such a pulley |
| CN103591126A (en) * | 2012-08-14 | 2014-02-19 | 重庆长安汽车股份有限公司 | Engine accessory gear train idler assembly |
| CN103850787A (en) * | 2012-11-30 | 2014-06-11 | 重庆长安汽车股份有限公司 | Engine accessory idle wheel assembly |
| CN104508322A (en) * | 2012-08-02 | 2015-04-08 | 阪东化学株式会社 | Transmission belt and manufacturing method therefor |
| CN105050788A (en) * | 2013-03-28 | 2015-11-11 | 舍弗勒技术股份两合公司 | Pulley and method for manufacturing the same |
-
2019
- 2019-03-29 CN CN201910250837.4A patent/CN109812566A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000337481A (en) * | 1999-05-27 | 2000-12-05 | Nsk Ltd | Pulley made of resin |
| CN1322376C (en) * | 2001-05-25 | 2007-06-20 | 富士施乐株式会社 | Driving force transfer device and imagina apparatus using the same device |
| WO2008141466A1 (en) * | 2007-05-23 | 2008-11-27 | Litens Automotive Partnership | Center-gated molded pulley and method of manufacturing such a pulley |
| CN104508322A (en) * | 2012-08-02 | 2015-04-08 | 阪东化学株式会社 | Transmission belt and manufacturing method therefor |
| CN103591126A (en) * | 2012-08-14 | 2014-02-19 | 重庆长安汽车股份有限公司 | Engine accessory gear train idler assembly |
| CN103850787A (en) * | 2012-11-30 | 2014-06-11 | 重庆长安汽车股份有限公司 | Engine accessory idle wheel assembly |
| CN105050788A (en) * | 2013-03-28 | 2015-11-11 | 舍弗勒技术股份两合公司 | Pulley and method for manufacturing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190528 |
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| RJ01 | Rejection of invention patent application after publication |