CN107965554A - A kind of compound tensioning wheel - Google Patents
A kind of compound tensioning wheel Download PDFInfo
- Publication number
- CN107965554A CN107965554A CN201711460140.7A CN201711460140A CN107965554A CN 107965554 A CN107965554 A CN 107965554A CN 201711460140 A CN201711460140 A CN 201711460140A CN 107965554 A CN107965554 A CN 107965554A
- Authority
- CN
- China
- Prior art keywords
- belt pulley
- support arm
- spring base
- belt
- tensioning wheel
- 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
- F16H7/08—Means for varying tension of belts, ropes, or chains
-
- 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
- F16H2007/0802—Actuators for final output members
- F16H2007/0806—Compression coil springs
-
- 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
- F16H2007/0842—Mounting or support of tensioner
Abstract
A kind of compound tensioning wheel, including bearing, lid, spring is provided between the bearing and lid, one end of the first support arm is fixedly connected with spring base, the other end of the first support arm is provided with the first belt pulley seat, the first belt pulley is fixedly connected with first belt pulley seat, first belt pulley passes through bearing and the first belt pulley seat rotatable engagement；One end of the second support arm is fixedly connected with spring base, and the other end of the second support arm is provided with the second belt pulley seat, and the second belt pulley is fixedly connected with second belt pulley seat, and second belt pulley passes through bearing and the second belt pulley seat rotatable engagement；The spring is provided with spring base, and the spring base and lid rotatable engagement, the spring base pass through spring and lid along the circumferential direction spacing cooperation.The design not only increases adjustment length of the tensioning wheel adjustment to belt, reduces adjustment angle, and effectively improves belt train traveling comfort and level of NVH.
Description
Technical field
The present invention relates to a kind of dual pulley tensioning wheel, more particularly to a kind of compound tensioning wheel, it is particularly applicable to increase
The adjustment length scope of bearing up pulley, the adaptability and stability for improving tensioning wheel.
Background technology
Effect of the tensioning wheel in motor head accessory drive train be：Stable tension force is provided, ensures the biography of annex
Dynamic power；Each annex installation site deviation and belt aging elongation are compensated, ensures the service life of belt.
Tensioning wheel plays the role of tightening belt by the certain angle of rotating arm.Because load becomes in its operational process
Change, Belt Length change, spring, which is applied to support arm, makes belt wheel assembly keep impaction state to belt.To meet belt life week
In the range of phase（Belt aging extends）Tensioning wheel keeps belt impaction state, and tensioning wheel needs certain operating angle to reach
This regulated quantity.When operating angle scope is big, spring windup-degree is big, and the torque scope discharged is also bigger, is unfavorable for whole
The reliability of a train.It is inadequate to Belt Length regulated quantity when operating angle is small, the service life of belt is influenced, particularly
The arrangement form of one driving wheel, driven wheel, and big operating angle can not be designed by spacial influence tensioning wheel.Therefore
The prior art has the following disadvantages：1. it is small to be limited tensioning wheel operating angle by space, inadequate to belt regulated quantity.2. tensioning wheel work
It is big to make angular range, torque output changes greatly.
China Patent Publication No. is CN202690922U, and publication date discloses for the utility model patent on January 23rd, 2013
The tensioning wheel in a kind of technical field of mechanical transmission is the utility model is related to, includes the support plate of belt pulley and connection belt pulley,
Bearing is equipped with the belt pulley, baffle ring is equipped between the bearing and support plate, belt pulley end face is fixed with dust-proof by axle bolt
Lid, the dustproof cover edge are foldable outwardly and are overlapped with pulley rim, and the support plate is equipped with spring supporting set and central shaft
Set and both concentrics, are equipped with spring in the spring supporting set, packing ring, the end of the support plate are equipped between the spring and support plate
Face is equipped with panel, and panel to spring supporting inner room is equipped with wearing plate, disk spring successively.Although the utility model can effectively open
Tight belt, but it still suffers from following defect：
1st, the tensioning wheel operating angle of the utility model is smaller, causes its regulated quantity to belt smaller, when belt aging increases
Afterwards, control of the tensioning wheel to belt weakens, and causes the increase of belt train transmission vibration, reduces the reliability of belt train.
2nd, the tensioning wheel operating angle scope in the utility model is big, causes the angle of tensioning wheel frequently to become in its stress
Change, reduce the stability of belt train.
The content of the invention
The problem of the purpose of the present invention is overcoming reliability existing in the prior art low, there is provided a kind of reliability height,
The compound tensioning wheel of damping noise reduction.
In order to achieve the above object, the technical solution of the present invention is：
A kind of compound tensioning wheel, including bearing, lid, spring is provided between the bearing and lid；
The bearing includes spring base, first support arm and second support arm, and one end of the first support arm is fixedly connected with spring base,
The other end of the first support arm is provided with the first belt pulley seat, and the first belt is fixedly connected with first belt pulley seat
Wheel, first belt pulley pass through bearing and the first belt pulley seat rotatable engagement；
One end of the second support arm is fixedly connected with spring base, and the other end of the second support arm is provided with the second belt pulley
, the second belt pulley is fixedly connected with second belt pulley seat, second belt pulley passes through bearing and the second belt pulley
Seat rotatable engagement；
The spring is provided with spring base, and the spring base and lid rotatable engagement, the spring base pass through spring and lid
Body along the circumferential direction spacing cooperation.
Angle a between the first support arm and second support arm is the first belt pulley seat central axes, spring base central axes institute
Angle between plane where plane and spring base central axes, the second belt pulley seat central axes；
The angle of angle a between the first support arm and second support arm is 45 degree of -135 degree.
First belt pulley is identical with the setting height(from bottom) of the second belt pulley.
The first belt pulley seat central axes are to the minimum range of spring base outer circumference surface and the difference of the first pulley radius
More than or equal to 20 millimeters；
The minimum range and the difference of the second pulley radius of the second belt pulley seat central axes to spring base outer circumference surface are more than
Equal to 20 millimeters.
The distance of first belt pulley seat central axes to spring base central axes is spring base central axes into the second belt pulley seat
0.5 times -2 times of the distance of axis.
Minimum range between the outer circumference surface of the outer circumference surface of first belt pulley 4 and the second belt pulley 5 is more than etc.
In 30 millimeters, first belt pulley and the second belt pulley are located at the both sides of belt to be tensioned respectively.
The equal length of the first support arm and second support arm.
Compared with prior art, beneficial effects of the present invention are：
1st, two belt pulleys are designed on a tensioning wheel in a kind of compound tensioning wheel of the present invention, increases the adjusting of tensioning wheel
Length, and the torque output of tensioning wheel depends on the rotation angle of tensioning wheel spring, is originally set when being tensioned the belt of same length
The rotation angle smaller of the tensioning wheel spring of meter, therefore the torque difference that tensioning wheel exports in the range of the whole life cycle of belt
Value diminishes, and effectively increases whole belt train traveling comfort, improves the reliability and level of NVH of belt train.Cause
This, the adjustment length that the tensioning wheel of the design is adjusted to belt is longer, adjusts the angle smaller, effectively improves the operation of belt train
Stationarity and level of NVH.
2nd, the length of the support arm in a kind of compound tensioning wheel of the present invention and the angle of arm room can be according to actual utilization feelings
Condition adjusts, and expands the scope of application of the design tensioning wheel, improves the specific aim that tensioning wheel is tensioned different trains.Therefore,
The design is applied widely, and tension effects are good, train stability is high.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the structure diagram of bearing in Fig. 1.
Fig. 3 is the sectional view of bearing in Fig. 1.
In figure：Bearing 1, spring abutment 11, first support arm 12, second support arm 13, the first belt pulley seat 14, the second belt pulley seat
15th, lid 2, spring 3, the first belt pulley 4, the second belt pulley 5.
Embodiment
Below in conjunction with brief description of the drawings, the present invention is described in further detail with embodiment.
Referring to Fig. 1 to Fig. 3, a kind of compound tensioning wheel, including bearing 1, lid 2, set between the bearing 1 and lid 2
There is spring 3,
The bearing 1 includes spring base 11, first support arm 12 and second support arm 13, one end of the first support arm 12 and spring base
11 are fixedly connected, and the other end of the first support arm 12 is provided with the first belt pulley seat 14, consolidates on first belt pulley seat 14
Surely the first belt pulley 4 is connected with, first belt pulley 4 passes through 14 rotatable engagement of bearing and the first belt pulley seat；
One end of the second support arm 13 is fixedly connected with spring base 11, and the other end of the second support arm 13 is provided with the second skin
Band wheel seat 15, is fixedly connected with the second belt pulley 5 on second belt pulley seat 15, second belt pulley 5 by bearing with
Second belt pulley seat, 15 rotatable engagement；
The spring 3 is provided with spring base 11, and the spring base 11 and 2 rotatable engagement of lid, the spring base 11 pass through
Spring 3 and the along the circumferential direction spacing cooperation of lid 2.
Angle a between the first support arm 12 and second support arm 13 is 14 central axes of the first belt pulley seat, spring base 11
Angle between plane where 11 central axes of plane and spring base, 15 central axes of the second belt pulley seat where central axes；
The angle of angle a between the first support arm 12 and second support arm 13 is 45 degree of -135 degree.
First belt pulley 4 is identical with the setting height(from bottom) of the second belt pulley 5.
Minimum range and first belt pulley 4 radius of first belt pulley seat, 14 central axes to 11 outer circumference surface of spring base
Difference be more than or equal to 20 millimeters；
Second belt pulley seat, 15 central axes are to the minimum range of 11 outer circumference surface of spring base and the difference of 5 radius of the second belt pulley
More than or equal to 20 millimeters.
The distance of first belt pulley seat, 14 central axes to 11 central axes of spring base is 11 central axes of spring base to the second belt
0.5 times -2 times of the distance of 15 central axes of wheel seat.
Minimum range between the outer circumference surface of the outer circumference surface of first belt pulley 4 and the second belt pulley 5 is more than etc.
In 30 millimeters, 4 and second belt pulley 5 of the first belt pulley is located at the both sides of belt to be tensioned respectively.
The equal length of the first support arm 12 and second support arm 13.
The principle of the present invention is described as follows：
Referring to Fig. 1, in the train of a simplest driving wheel and a driven wheel, 1274 millimeters of raw hide strip length, is tensioned
Take turns adjustment length in belt belt service life need to be more than the 1% of Belt Length with belt tolerance and 18 millimeters；
If be tensioned using traditional single belt pulley tensioning wheel, due to being limited be subject to space, make tensioning wheel operating angle
Only 10 °, the variable quantity that tensioning wheel adjusts Belt Length is 11.3 millimeters, less than 18 millimeters.Traditional single skin as can be seen here
Belt wheel tensioning wheel can not meet the adjusting requirement to Belt Length within the belt life cycle, shorten the service life of belt.
And the compound tensioning wheel of the design is utilized, the equal length of first support arm 12 and second support arm 13 is also equal to traditional
The arm length of single belt pulley tensioning wheel, the operating angle with sample design tensioning wheel are 10 °, and tensioning wheel adjusts Belt Length
Variable quantity be 21 millimeters, disclosure satisfy that the requirement of the adjusting in the belt life cycle to Belt Length, extend making for belt
Use the service life.
The diameter of first belt pulley, 4 and second belt pulley 5 can first belt pulley and the second belt pulley it is straight
Footpath is typically chosen equal-sized belt pulley, generally the belt pulley of 74 millimeters of diameter.Diameter pulley is small, its rotating speed will increase
Height, is unfavorable for bearing reliability；Diameter pulley is big, occupies greater room, is unfavorable for train arrangement.
First support arm 12 is that belt is not contacted with fixed component with the Design of length principle of second support arm 13, while first
Angle between arm 12 and second support arm 13, which is tried one's best, to be reduced so as to increase the belt regulated quantity of tensioning wheel.
NVH refers to Noise (noise), Vibration (vibration) and Harshness (sound vibration roughness), three due to more than
Person is appearance at the same time and interwoveness in the mechanical oscillation such as automobile, therefore often puts them on and studied together.
Embodiment 1：
A kind of compound tensioning wheel, including bearing 1, lid 2, are provided with spring 3, the bearing 1 between the bearing 1 and lid 2
Including spring base 11, first support arm 12 and second support arm 13, one end of the first support arm 12 is fixedly connected with spring base 11, institute
The other end for stating first support arm 12 is provided with the first belt pulley seat 14, and the first skin is fixedly connected with first belt pulley seat 14
Belt wheel 4, first belt pulley 4 pass through 14 rotatable engagement of bearing and the first belt pulley seat；One end of the second support arm 13 with
Spring base 11 is fixedly connected, and the other end of the second support arm 13 is provided with the second belt pulley seat 15, second belt pulley seat
The second belt pulley 5 is fixedly connected with 15, second belt pulley 5 passes through 15 rotatable engagement of bearing and the second belt pulley seat；Institute
State spring 3 to be provided with spring base 11, the spring base 11 and 2 rotatable engagement of lid, the spring base 11 by spring 3 with
The along the circumferential direction spacing cooperation of lid 2；Angle a between the first support arm 12 and second support arm 13 is the first belt pulley seat 14
Central axes, 11 central axes of plane and spring base where 11 central axes of spring base, 15 central axes of the second belt pulley seat place plane it
Between angle；The angle of angle a between the first support arm 12 and second support arm 13 is 45 degree of -135 degree；First belt
Wheel 4 is identical with the setting height(from bottom) of the second belt pulley 5.
Embodiment 2：
Embodiment 2 is substantially the same manner as Example 1, its difference is：
First belt pulley seat, 14 central axes are to the minimum range of 11 outer circumference surface of spring base and the difference of 4 radius of the first belt pulley
More than or equal to 20 millimeters；Minimum range and second belt of second belt pulley seat, 15 central axes to 11 outer circumference surface of spring base
The difference for taking turns 5 radiuses is more than or equal to 20 millimeters；The distance of first belt pulley seat, 14 central axes to 11 central axes of spring base is spring base
0.5 times -2 times of the distance of 11 central axes to the second belt pulley seat, 15 central axes；The outer circumference surface of first belt pulley 4 and
Minimum range between the outer circumference surface of two belt pulleys 5 is more than or equal to 30 millimeters, 4 and second belt pulley 5 of the first belt pulley
It is located at the both sides of belt to be tensioned respectively.
Embodiment 3：
Embodiment 3 is substantially the same manner as Example 1, its difference is：
First belt pulley seat, 14 central axes are to the minimum range of 11 outer circumference surface of spring base and the difference of 4 radius of the first belt pulley
More than or equal to 20 millimeters；Minimum range and second belt of second belt pulley seat, 15 central axes to 11 outer circumference surface of spring base
The difference for taking turns 5 radiuses is more than or equal to 20 millimeters；The equal length of the first support arm 12 and second support arm 13.
Claims (7)
1. a kind of compound tensioning wheel, including bearing（1）, lid（2）, the bearing（1）With lid（2）Between be provided with spring
（3）, it is characterised in that：
The bearing（1）Including spring base（11）, first support arm（12）And second support arm（13）, the first support arm（12）One
End and spring base（11）It is fixedly connected, the first support arm（12）The other end be provided with the first belt pulley seat（14）, described
One belt pulley seat（14）On be fixedly connected with the first belt pulley（4）, first belt pulley（4）Pass through bearing and the first belt pulley
Seat（14）Rotatable engagement；
The second support arm（13）One end and spring base（11）It is fixedly connected, the second support arm（13）The other end be provided with
Second belt pulley seat（15）, second belt pulley seat（15）On be fixedly connected with the second belt pulley（5）, second belt pulley
（5）Pass through bearing and the second belt pulley seat（15）Rotatable engagement；
The spring（3）It is provided with spring base（11）It is interior, the spring base（11）With lid（2）Rotatable engagement, the spring
Seat（11）Pass through spring（3）With lid（2）Along the circumferential direction spacing cooperation.
A kind of 2. compound tensioning wheel according to claim 1, it is characterised in that：
The first support arm（12）With second support arm（13）Between angle a be the first belt pulley seat（14）Central axes, spring base
（11）Plane and spring base where central axes（11）Central axes, the second belt pulley seat（15）Folder between plane where central axes
Angle；
The first support arm（12）With second support arm（13）Between angle a angle for 45 degree -135 spend.
A kind of 3. compound tensioning wheel according to claim 1 or 2, it is characterised in that：
First belt pulley（4）With the second belt pulley（5）Setting height(from bottom) it is identical.
A kind of 4. compound tensioning wheel according to claim 3, it is characterised in that：
First belt pulley seat（14）Central axes are to spring base（11）The minimum range of outer circumference surface and the first belt pulley（4）Half
The difference in footpath is more than or equal to 20 millimeters；
Second belt pulley seat（15）Central axes are to spring base（11）The minimum range of outer circumference surface and the second belt pulley（5）Half
The difference in footpath is more than or equal to 20 millimeters.
A kind of 5. compound tensioning wheel according to claim 4, it is characterised in that：
First belt pulley seat（14）Central axes are to spring base（11）The distance of central axes is spring base（11）Central axes are to the second skin
Band wheel seat（15）0.5 times -2 times of the distance of central axes.
A kind of 6. compound tensioning wheel according to claim 5, it is characterised in that：
First belt pulley（4）Outer circumference surface and the second belt pulley（5）Outer circumference surface between minimum range be more than etc.
In 30 millimeters, first belt pulley（4）With the second belt pulley（5）It is located at the both sides of belt to be tensioned respectively.
A kind of 7. compound tensioning wheel according to claim 4, it is characterised in that：
The first support arm（12）With second support arm（13）Equal length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711460140.7A CN107965554A (en) | 2017-12-28 | 2017-12-28 | A kind of compound tensioning wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711460140.7A CN107965554A (en) | 2017-12-28 | 2017-12-28 | A kind of compound tensioning wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107965554A true CN107965554A (en) | 2018-04-27 |
Family
ID=61993281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711460140.7A Pending CN107965554A (en) | 2017-12-28 | 2017-12-28 | A kind of compound tensioning wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107965554A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332289A (en) * | 2019-06-25 | 2019-10-15 | 温州职业技术学院 | A kind of pillow chartered plane on line conveying device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5776025A (en) * | 1996-09-25 | 1998-07-07 | Eastman Kodak Company | Adjustable self-aligning belt tensioner |
| CN1468347A (en) * | 2000-10-03 | 2004-01-14 | �Ǵĺ�˾ | Accessory and motor/generator belt drive tensioner |
| ATE456755T1 (en) * | 2002-12-30 | 2010-02-15 | Dayco Europe Srl | BELT TENSIONER WITH TWO ARMS FOR BELT DRIVES AND BELT DRIVES WITH ONE BELT TENSIONER |
| WO2015177997A1 (en) * | 2014-05-22 | 2015-11-26 | バンドー化学株式会社 | Belt transmission system |
| CN207961432U (en) * | 2017-12-28 | 2018-10-12 | 东风商用车有限公司 | A kind of compound tensioning wheel |
-
2017
- 2017-12-28 CN CN201711460140.7A patent/CN107965554A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5776025A (en) * | 1996-09-25 | 1998-07-07 | Eastman Kodak Company | Adjustable self-aligning belt tensioner |
| CN1468347A (en) * | 2000-10-03 | 2004-01-14 | �Ǵĺ�˾ | Accessory and motor/generator belt drive tensioner |
| ATE456755T1 (en) * | 2002-12-30 | 2010-02-15 | Dayco Europe Srl | BELT TENSIONER WITH TWO ARMS FOR BELT DRIVES AND BELT DRIVES WITH ONE BELT TENSIONER |
| WO2015177997A1 (en) * | 2014-05-22 | 2015-11-26 | バンドー化学株式会社 | Belt transmission system |
| JPWO2015177997A1 (en) * | 2014-05-22 | 2017-04-20 | バンドー化学株式会社 | Belt transmission system |
| CN207961432U (en) * | 2017-12-28 | 2018-10-12 | 东风商用车有限公司 | A kind of compound tensioning wheel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332289A (en) * | 2019-06-25 | 2019-10-15 | 温州职业技术学院 | A kind of pillow chartered plane on line conveying device |
| CN110332289B (en) * | 2019-06-25 | 2020-10-02 | 温州职业技术学院 | Pillow package machine on-line conveying device |
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Application publication date: 20180427 |