CN206617541U - A kind of adjustable belt pulley of external diameter - Google Patents
A kind of adjustable belt pulley of external diameter Download PDFInfo
- Publication number
- CN206617541U CN206617541U CN201621367864.8U CN201621367864U CN206617541U CN 206617541 U CN206617541 U CN 206617541U CN 201621367864 U CN201621367864 U CN 201621367864U CN 206617541 U CN206617541 U CN 206617541U
- Authority
- CN
- China
- Prior art keywords
- belt
- locating piece
- belt pulley
- positioning
- cell wall
- 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
Links
Abstract
The utility model discloses a kind of adjustable belt pulley of external diameter, including pulley body, the center of the pulley body offers mounting hole, the outer ring of pulley body forms belt grooves, the belt grooves are by bottom surface and a left side for both sides, right cell wall composition, the belt pulley also includes the locating piece and connecting rod for being used to position belt, the positioning block gap and the left side for being evenly mounted on belt grooves, on right cell wall, locating piece is provided with through hole, a left side for the belt grooves, right cell wall is provided with multigroup with positioning number of blocks identical positioning hole, every group of positioning hole is all made up of at least two positioning holes for being located at same radial section, the connecting rod is arranged in positioning hole and through hole and locating piece is fixed on into a left side simultaneously, between right cell wall.Locating piece uniformly is installed in belt grooves, belt is resisted against on locating piece, and the distance in locating piece and axle center can be adjusted as needed, i.e., one belt pulley has multiple external diameters, therefore the application of belt pulley of the present utility model is wider.
Description
Technical field
The utility model is related to a kind of adjustable belt pulley of external diameter, particularly relates to a kind of rotation friction small and can basis
It is actually needed the belt pulley of regulation external diameter.
Background technology
Belt pulley is will to be converted into the instrument of linear motion, and existing belt pulley is general by pulley body and one
Body is arranged at the belt grooves composition of pulley body periphery, and the middle part of pulley body is provided with axis hole.Existing belt pulley is once
After being made, the external diameter of its belt trench bottom is fixed dead, and it can only be coordinated with the belt of length-specific, application
Limitation is than larger.
In addition, existing belt pulley is typically all directly to be attached tumbler with axis hole, turn of this belt pulley
Efficiency of movement is low, rotating speed is generally slower.Also there is the belt pulley for being mounted with bearing on this problem, existing market to overcome, though
Rotational efficienty is greatly so improved, but the shape of the radial section of the interior rolling of this bearing and outer raceway is often semicircle
Shape, steel ball and inside and outside raceway sphere-contact, the structural bearing capacity are poor, and when load increase, contact stress increase is so as to increase
The possibility that bearing fatigue is peeled off, simultaneously because contact stress increase causes the heating of bearing, causes the service life of bearing
Reduction.
Utility model content
The utility model provides a kind of belt pulley, and its main purpose is the pulley outer diameter for overcoming prior art to exist
The defect that application limitation is larger and pulley rotation efficiency is low can not be adjusted.
The technical solution of the utility model is as follows：
A kind of adjustable belt pulley of external diameter, including pulley body, the center of the pulley body offers mounting hole, skin
The outer ring of belt wheel body forms belt grooves, and the belt grooves are made up of the left and right cell wall of bottom surface and both sides, and the belt pulley is also wrapped
Include the locating piece and connecting rod for positioning belt, the positioning block gap and the left and right cell wall for being evenly mounted on belt grooves
On, locating piece is provided with through hole, and the left and right cell wall of the belt grooves is provided with multigroup with positioning number of blocks identical positioning hole,
Every group of positioning hole is all made up of at least two positioning holes for being located at same radial section, and the connecting rod is arranged in positioning hole simultaneously
And be fixed in through hole and by locating piece between left and right cell wall.
Further, the left and right side of the locating piece is connected in the inner side of left and right cell wall respectively；The outer end of locating piece
Face is in leave gap between circular arc, and adjacent two locating piece.
Further, the inner face of the locating piece is in circular arc, and its arc surface is engaged with the bottom surface of belt grooves, institute
The bottom surface of belt grooves can be resisted against by stating the inner face of locating piece.
Further, every group of positioning hole is constituted by three positioning holes.With three kinds of adjustable external diameters.
Further, the connecting rod is the screw rod and nut cooperated.
Further, one layer of frosted layer is formed on the inwall of the belt grooves.Increase and the frictional force of belt side.
Further, the bearing includes inner ring, outer ring and ball, and inner ring is provided with interior raceway, and outer ring is provided with outer
Raceway, the radial section of the interior raceway and outer raceway is triangular in shape, and the ball is tangent with inside and outside raceway respectively.Ball
It is tangent between inside and outside raceway so that contact area diminishes, frictional force during rolling is reduced, not only the more conducively rolling of ball
It is dynamic, and the heat produced by friction is decreased, so as to lift service life.
From above-mentioned to description of the present utility model, compared to the prior art, the utility model has the following advantages that：Skin
Locating piece uniformly is installed in trough of belt, belt is resisted against on locating piece, and the distance in locating piece and axle center can be carried out as needed
Regulation, i.e., one belt pulley has multiple external diameters, therefore the application of belt pulley of the present utility model is wider.
Brief description of the drawings
Fig. 1 is partial sectional view when pulley outer diameter is maximum.
Fig. 2 is structural representation when pulley outer diameter reduces.
Fig. 3 is the diagrammatic cross-section of bearing.
Embodiment
Illustrate embodiment of the present utility model with reference to the accompanying drawings.
Reference picture 1, a kind of adjustable belt pulley of external diameter, including pulley body 1, the center of the pulley body 1 is opened up
There is mounting hole, the outer ring of pulley body 1 forms belt grooves 2, and belt 3 is arranged in belt grooves 2, in order to strengthen frictional force belt
One layer of frosted layer (being not drawn into figure) is typically provided with the inwall of groove 2.The belt grooves 2 by bottom surface 21 and both sides left and right groove
Wall 22 is constituted.Belt pulley also includes being used for the locating piece 4 for positioning belt 3 and the screw rod 51 and nut 52 that cooperate, locating piece 4
Quantity it is identical with the quantity of screw rod 51, nut 52.The left and right side of locating piece 4 is connected in the interior of left and right cell wall 22 respectively
Side；The outer face of locating piece 4 is in leave gap between circular arc, and adjacent two locating piece 4.Locating piece 4 is provided with through hole (in figure
It is not drawn into), the left and right cell wall 22 of the belt grooves 2 is provided with multigroup and the quantity identical positioning hole 6 of locating piece 4, every group of positioning
Hole 6 is all made up of at least two positioning holes 6 for being located at same radial section, and the screw rod 51 is arranged in positioning hole 6 and logical simultaneously
It is fixed in hole and by locating piece 4 between left and right cell wall 22.As shown in fig. 1, every group of positioning hole 6 is by three 6 groups of positioning holes
Into with three kinds of adjustable external diameters, locating piece 4 is positioned on outermost positioning hole 6 in Fig. 1, and the inner side of belt 3, which is resisted against, determines
On the outer face of position block 4, diameter reaches maximum.Locating piece 4 is positioned on the positioning hole 6 at middle part in Fig. 2, and diameter takes second place.In addition,
The inner face of the locating piece 4 is in circular arc, and its arc surface is engaged with the bottom surface 21 of belt grooves 2, the inner of the locating piece 4
Face can also be resisted against the bottom surface 21 of belt grooves 2, and now diameter is minimum.
Referring concurrently to Fig. 3, the belt pulley also includes bearing 7, and the bearing 7 includes inner ring 71, outer ring 72 and ball 73, interior
Circle 71 is provided with interior raceway 711, and outer ring 72 is provided with outer raceway 721, the radial section of the interior raceway 711 and outer raceway 721
Triangular in shape, the ball 73 is tangent with inside and outside raceway 711,721 respectively.Ball 73 and inside and outside raceway 711,721 are tangent,
So that contact area diminishes, frictional force during rolling is reduced, the not only more conducively rolling of ball 73, and decrease friction
Produced heat, so as to lift service life.
Embodiment of the present utility model is above are only, but design concept of the present utility model is not limited thereto,
All changes for carrying out unsubstantiality to the utility model using this design, belong to invade the row of the utility model protection domain
For.
Claims (7)
1. a kind of adjustable belt pulley of external diameter, including pulley body, the center of the pulley body offers mounting hole, belt
The outer ring for taking turns body forms belt grooves, and the belt grooves are made up of the left and right cell wall of bottom surface and both sides, it is characterised in that：It is described
Belt pulley also includes being used for positioning the locating piece and connecting rod of belt, the positioning block gap and is evenly mounted on belt grooves
On left and right cell wall, locating piece is provided with through hole, and the left and right cell wall of the belt grooves is provided with multigroup identical with positioning number of blocks
Positioning hole, every group of positioning hole all by least two be located at same radial section positioning holes constitute, the connecting rod is worn simultaneously
It is fixed in positioning hole and through hole and by locating piece between left and right cell wall.
2. belt pulley according to claim 1, it is characterised in that：The left and right side of the locating piece be connected in respectively it is left,
The inner side of right cell wall；The outer face of locating piece is in leave gap between circular arc, and adjacent two locating piece.
3. belt pulley according to claim 2, it is characterised in that：The inner face of the locating piece is in circular arc, its circular arc
Face is engaged with the bottom surface of belt grooves, and the inner face of the locating piece can be resisted against the bottom surface of belt grooves.
4. belt pulley according to claim 1, it is characterised in that：Every group of positioning hole is constituted by three positioning holes.
5. belt pulley according to claim 1, it is characterised in that：The connecting rod is the screw rod and nut cooperated.
6. belt pulley according to claim 1, it is characterised in that：One layer of frosted layer is formed on the inwall of the belt grooves.
7. belt pulley according to claim 1, it is characterised in that：The belt pulley also includes a bearing, the bearing bag
Inner ring, outer ring and ball are included, inner ring is provided with interior raceway, and outer ring is provided with outer raceway, the radial direction of the interior raceway and outer raceway
Section is triangular in shape, and the ball is tangent with inside and outside raceway respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621367864.8U CN206617541U (en) | 2016-12-14 | 2016-12-14 | A kind of adjustable belt pulley of external diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621367864.8U CN206617541U (en) | 2016-12-14 | 2016-12-14 | A kind of adjustable belt pulley of external diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617541U true CN206617541U (en) | 2017-11-07 |
Family
ID=60229446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621367864.8U Expired - Fee Related CN206617541U (en) | 2016-12-14 | 2016-12-14 | A kind of adjustable belt pulley of external diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573324A (en) * | 2020-11-26 | 2021-03-30 | 中国矿业大学 | Flexible cable self-adaptive guide wheel and guide method thereof |
-
2016
- 2016-12-14 CN CN201621367864.8U patent/CN206617541U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573324A (en) * | 2020-11-26 | 2021-03-30 | 中国矿业大学 | Flexible cable self-adaptive guide wheel and guide method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171107 Termination date: 20181214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |