CN2446101Y - Flexible automatic tensioner - Google Patents
Flexible automatic tensioner Download PDFInfo
- Publication number
- CN2446101Y CN2446101Y CN 00223519 CN00223519U CN2446101Y CN 2446101 Y CN2446101 Y CN 2446101Y CN 00223519 CN00223519 CN 00223519 CN 00223519 U CN00223519 U CN 00223519U CN 2446101 Y CN2446101 Y CN 2446101Y
- Authority
- CN
- China
- Prior art keywords
- tensioning
- chain
- roller
- rod assembly
- roller pin
- 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
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Abstract
The utility model relates to a flexible automatic tensioner which belongs to a tensioning device for the chain transmission. A roller (1) which can do the circumferential rotation on the outer circle of a roller pin is installed on the upper end of the existing chain tensioning device by a roller pin (2), and the upper end of the existing chain tensioning device is the upper end of a tensioning rod assembly (3). The rotation cambered surface of the roller (1) is flexibly contacted with the contact surface of a tensioning strip (4), so the tensioning component force and the friction force of the radial direction of the tensioning strip (4) which are caused by the tensioning rod assembly (3) can be lowered; thereby, the tension loss of the tensioning strip (4) and a chain (5), which is caused by the tensioning rod assembly (3) can become small, and the smooth transmission of the chain (5) can be realized, and the abnormal noise is not generated.
Description
The utility model relates to the used tightening device of a kind of chain gear, especially a kind of flexible automatic tensioner.
At present, well-known chain stretching device is an energy elasticity mechanical composite set of elongation automatically, and external form is " protruding " word shape.Its upper end end face is a plane that contacts with the contact surface of the tension bar of chain lower end.But owing to be the plane, when being easy to cause tightening device to tension bar elasticity roof pressure because of they two contact surfaces because move, rotation or aspects such as manufacturing and assembly error former thereby form inclination elastic top pressure condition, produce radially tensioning component and radial frictional force, thereby cause chain because of tensile force not enough the produce transmission abnormal sound sound of tightening device to it.
The purpose of this utility model just provides a kind ofly can effectively eliminate the radially flexible automatic tensioner of tensioning component and radial frictional force in the process of tension chain, make chain gear be as good as sound.
The purpose of this utility model is achieved in that the upper end at aforesaid chain stretching device, surely be called in the utility model promptly that the upper end of " nutted rod assembly " is fastening is equipped with a roller pin, bearing fit is equipped with a roller on the cylindrical of roller pin, and roller can be made axial location unmodified circumference and rotate on the roller pin cylindrical.
Owing to adopted above-mentioned tightening device to rotate the scheme of the flexible contact of cambered surface tension bar contact surface, big radially tensioning component that chain is produced in the time of just avoiding existing tightening device to be the inclination roof pressure owing to the contact surface with tension bar and the not enough transmission abnormal sound voice phenomenon that causes of the caused tensile force of radial frictional force when transmission.
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing is structural representation of the present utility model and working diagram.
1-roller 2-roller pin 3-nutted rod assembly 4-tension bar 5-chain in the drawings
On the part sectional view position of accompanying drawing, roller pin (2) is equipped with in the upper end of nutted rod assembly (3), and roller (1) is housed on the cylindrical of roller pin (2).Wherein the outside face of roller pin (2) is the face of cylinder, and the hole of it and nutted rod assembly (3) upper end is an interference fit, and the axis normal of its axis and nutted rod assembly (3) can not move axially.The cylindrical of the interior circular hole of roller (1) and roller pin (2) is a bearing fit, can make circumference on the cylindrical of roller pin (2) rotates, and can not move axially, the width of the axial length of roller (1) and tension bar (4) about equally, the outside face of roller (1) is an arc surface, it is symmetrical in the axis of nutted rod assembly (3), and the vertex on roller (1) arc surface is exactly the vertex on nutted rod assembly (3) axis.Nutted rod assembly (3) is exactly the basic structure of the aforementioned chain stretching device of now knowing, is an energy elasticity mechanical composite set of elongation automatically.
When the utility model is in running order, as shown in drawings: nutted rod assembly (3) moves up automatically by the effect of self elastic mechanism, is pressed on the tension bar (4) by roller (1) elastic top that is installed in nutted rod assembly (3) upper end again.Because the face that roller (1) contacts with tension bar (4) is symmetrical slewing circle cambered surface, so, nutted rod assembly (3) to the roof pressure power of tension bar (4) all the time on its axis or become on the very little angle line, it is just very little to radially tensioning component, the radial frictional force of tension bar (4) like this, be that it can not lose too much because of contact surface the roof pressure power of tension bar (4), effective roof pressure tension bar (4) so just, upwards rotate roof pressure chain (5) by tension bar (4) again, chain (5) is tensioned.
Claims (1)
- A kind of flexible automatic tensioner has nutted rod assembly (3), it is characterized in that: in the upper end of nutted rod assembly (3) roller pin (2) is housed fixedly, roller (1) is housed on the cylindrical of roller pin (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00223519 CN2446101Y (en) | 2000-06-26 | 2000-06-26 | Flexible automatic tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00223519 CN2446101Y (en) | 2000-06-26 | 2000-06-26 | Flexible automatic tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2446101Y true CN2446101Y (en) | 2001-09-05 |
Family
ID=33588056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00223519 Expired - Fee Related CN2446101Y (en) | 2000-06-26 | 2000-06-26 | Flexible automatic tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2446101Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680515B (en) * | 2007-05-01 | 2012-09-05 | 利滕斯汽车合伙公司 | Wear compensated tensioner |
| CN103118964A (en) * | 2010-09-22 | 2013-05-22 | 鲍勃斯脱梅克斯股份有限公司 | Machine for processing sheet members including a chain-set tensioner |
| CN105035657A (en) * | 2015-07-23 | 2015-11-11 | 湖南晟通天力汽车有限公司 | Vehicle-mounted conveyor |
-
2000
- 2000-06-26 CN CN 00223519 patent/CN2446101Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680515B (en) * | 2007-05-01 | 2012-09-05 | 利滕斯汽车合伙公司 | Wear compensated tensioner |
| CN103118964A (en) * | 2010-09-22 | 2013-05-22 | 鲍勃斯脱梅克斯股份有限公司 | Machine for processing sheet members including a chain-set tensioner |
| CN105035657A (en) * | 2015-07-23 | 2015-11-11 | 湖南晟通天力汽车有限公司 | Vehicle-mounted conveyor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |