CN205978350U - Motor pulley structure - Google Patents
Motor pulley structure Download PDFInfo
- Publication number
- CN205978350U CN205978350U CN201620975422.5U CN201620975422U CN205978350U CN 205978350 U CN205978350 U CN 205978350U CN 201620975422 U CN201620975422 U CN 201620975422U CN 205978350 U CN205978350 U CN 205978350U
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- CN
- China
- Prior art keywords
- changeover portion
- centre bore
- section
- external diameter
- length
- 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 utility model discloses a motor pulley structure, including belt pulley main part (1) of taking centre bore (2), centre bore (2) fall into direction section (a), changeover portion (b) and interference section (c) in proper order, wherein direction section (a) aperture surpasss 0.03~0.04mm of motor shaft external diameter, changeover portion (b) and 0.008 little~0.012mm of interference section (c) aperture ratio motor shaft external diameter, and the last evenly distributed of changeover portion (b) has 12~16 arc groove (3), the the arc RADIUS of arc groove (3) is 0.02mm, and the groove depth is 0.02mm not also. The utility model discloses assembly just the leading of motor shaft and centre bore of the time being convenient for, avoid the assembled belt pulley very big problem that appears beating.
Description
Technical field
This utility model is related to a kind of belt sheave structure, particularly a kind of motor belt wheel construction.
Background technology
Existing machine shaft is when belt pulley is combined it will usually by the way of interference fit.But this mode
Need rotating shaft enter belt pulley central shaft when can correcting with one heart, otherwise assembling after the completion of, belt pulley rotate when jump
Dynamic very big, badly influence the serviceability of motor.
Utility model content
The purpose of this utility model is, provides a kind of motor belt wheel construction, it assembling when be easy to machine shaft with
The correcting of centre bore, it is to avoid very big problem of beating in the belt pulley assembling.
The technical solution of the utility model：Motor belt wheel construction, is characterized in：Including the belt pulley master with centre bore
Body, described centre bore is divided into guide section, changeover portion and interference section successively；Wherein guide section aperture exceeds machine shaft external diameter 0.03
～0.04mm；Changeover portion and the little 0.008～0.012mm of interference section aperture ratio machine shaft external diameter, and be uniformly distributed on changeover portion
There are 12～16 arc grooves；The arc radius of arc groove are 0.02mm, groove depth also non-0.02mm.
In above-mentioned motor belt wheel construction, the length of described guide section is 3～5mm, and the length of changeover portion is 6～8mm.
In aforesaid motor belt wheel construction, preferably, the length of described guide section is 4mm, the length of changeover portion is
7mm.
Compared with prior art, this utility model is provided with guide section and transition in the center in the hole increase of motor pulley
Section, can enable machine shaft carry out correcting well, the directive wheel after the completion of assembling and motor when stepping into centre bore
Rotating shaft can have preferable concentricity, therefore can be prevented effectively from and belt pulley and beat very big problem.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic cross-section of the changeover portion of Fig. 1.
Being labeled as in accompanying drawing：1- pulley body, 2- centre bore, 3- arc groove, a- guide section, b- changeover portion, c- mistake
It is full of section.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further described, but is not intended as to this utility model
The foundation limiting.
Embodiment.Motor belt wheel construction, as shown in Figure 1：Including the pulley body 1 with centre bore 2, described centre bore
2 are divided into guide section a, changeover portion b and interference section c successively；Wherein guide section a aperture exceed machine shaft external diameter 0.03～
0.04mm；The changeover portion b and little 0.008～0.012mm of interference section c aperture ratio machine shaft external diameter, and be uniformly distributed on changeover portion b
There are 12～16 arc grooves 3；The arc radius of arc groove 3 are 0.02mm, groove depth also non-0.02mm.The length of described guide section a
(not including the chamfered part of end) is 4mm, and the length of changeover portion b is 7mm.Pulley body total length in the present embodiment is
20mm, corresponding machine shaft external diameter Φ is 11mm.
Claims (3)
1. motor belt wheel construction it is characterised in that：Including the pulley body with centre bore (2) (1), described centre bore (2)
It is divided into guide section (a), changeover portion (b) and interference section (c) successively；Wherein guide section (a) aperture exceeds machine shaft external diameter 0.03
～0.04mm；Changeover portion (b) and the little 0.008～0.012mm of interference section (c) aperture ratio machine shaft external diameter, and on changeover portion (b)
It is evenly distributed with 12～16 arc grooves (3)；The arc radius of arc groove (3) are 0.02mm, groove depth also non-0.02mm.
2. motor belt wheel construction according to claim 1 it is characterised in that：The length of described guide section (a) be 3～
5mm, the length of changeover portion (b) is 6～8mm.
3. motor belt wheel construction according to claim 2 it is characterised in that：The length of described guide section (a) is 4mm,
The length of changeover portion (b) is 7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620975422.5U CN205978350U (en) | 2016-08-30 | 2016-08-30 | Motor pulley structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620975422.5U CN205978350U (en) | 2016-08-30 | 2016-08-30 | Motor pulley structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205978350U true CN205978350U (en) | 2017-02-22 |
Family
ID=58037532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620975422.5U Active CN205978350U (en) | 2016-08-30 | 2016-08-30 | Motor pulley structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205978350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286771A (en) * | 2016-08-30 | 2017-01-04 | 湖州越球电机有限公司 | A kind of motor belt wheel construction |
-
2016
- 2016-08-30 CN CN201620975422.5U patent/CN205978350U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286771A (en) * | 2016-08-30 | 2017-01-04 | 湖州越球电机有限公司 | A kind of motor belt wheel construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |