CN201246449Y - Belt stretcher - Google Patents
Belt stretcher Download PDFInfo
- Publication number
- CN201246449Y CN201246449Y CNU2008200634399U CN200820063439U CN201246449Y CN 201246449 Y CN201246449 Y CN 201246449Y CN U2008200634399 U CNU2008200634399 U CN U2008200634399U CN 200820063439 U CN200820063439 U CN 200820063439U CN 201246449 Y CN201246449 Y CN 201246449Y
- Authority
- CN
- China
- Prior art keywords
- cover plate
- plate
- supporting base
- belt
- arm plate
- 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 - Lifetime
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
A belt tensioner comprises a cantilevered plate, a tension wheel and a pin shaft, wherein one end of the support pin shaft is mounted on the tension wheel through a bearing and the other end is hinged to the upper end of the cantilevered plate, a cover plate is arranged between the lower end of the cantilevered plate and a supporting base body, a threaded sleeve penetrating the cantilevered plate is in threaded connection with the lower end of the cover plate, a screw penetrates through an inner hole of the threaded sleeve to press the cover plate on the supporting base body, two opposite arc grooves are disposed between the cantilevered plate and the cover plate, two ends of each groove are provided with a spring baffle respectively, one spring baffle is fixedly connected to the cantilevered plate and the other one is fixedly connected to the cover plate, and springs are respectively disposed between the spring baffles of the arc grooves. By utilizing the structure, when the tension force of the tension wheel needs to be adjusted, the length of the spring disposed between the baffles at two ends of the arc groove is changed, thereby generating a torque force between the cantilevered plate and the cover plate, and further differing the belt tension forces on two sides of the cantilevered plate, and then the tension wheel sways about the cantilevered plate relatively to the supporting base, thereby changing the center distance between the belt pulleys and increasing the belt tension force.
Description
Technical field
The utility model relates to a kind of belt stretcher of mechanical transmission fields.
Background technique
The band transmission of depending on friction to work is a kind of typical case and widely used mechanical drive mode, and is non-slip in order to realize transmission, must have certain tension force in the belt.Traditional belt stretcher is that Idle wheel directly is assemblied on the supporting shaft with bearing, and bearing pin is connected on the arm plate again, is manufactured with vertical screech owl hole on the arm plate, is used to adjust the position of Idle wheel.When needing tightening belt, the transfer arm plate makes Idle wheel tensioning work belt, passes screech owl hole on the arm plate with hold-down bolt again, screws the nut on the bolt, fixes to clamp the arm plate, makes the fixed-site of Idle wheel.But traditional belt tension mode is adjusted inconvenience, and can't guarantee that belt transmission skids at Shi Buhui.
The model utility content
The purpose of this utility model is: the belt stretcher that a kind of conveniently adjusted tension direction and tension force are provided.
The purpose of this utility model realizes by implementing following technical proposals Come:
A kind of belt stretcher, comprise the arm plate, Idle wheel, bearing pin, supporting shaft one end is assemblied on the Idle wheel by bearing, its the other end is hinged on arm plate upper end, arm plate lower end is supported on the supporting base matrix, it is characterized in that, also comprise cover plate and swivel nut, cover plate is arranged between arm plate and the supporting base matrix, swivel nut passes the arm plate, fixed with the cover plate lower end, fastening piece passes swivel nut cover plate is pressed on the supporting base matrix, and two relative arc grooves are arranged between arm plate and the cover plate, the two ends of every groove are provided with a spring stop piece, wherein one is connected on the arm plate, and one is connected on the cover board, and two springs are separately positioned in two arc grooves between the spring stop piece.
Described cover plate endoporus and swivel nut outer peripheral surface scyewed joint.
Described fastening piece is a screw, and the inner bolt hole that screw passes swivel nut is pressed on cover plate on the supporting base matrix.
The exterior edge face of described cover plate is provided with the circumferential positioning hole corresponding with the locating stud of supporting base matrix.
Between described bearing and the bearing pin lining is set, described lining is a plastic bushing.
Adopt the pulley tensioner of above structure, the arm plate can be made axial rotary oscillation around swivel nut.When needs are adjusted the tension force of Idle wheel, change the spring length that is provided with between the catch at arc groove two ends, between arm plate and cover plate, produce a torsion, make arm plate both sides belt tension different, cause Idle wheel around of the swing of arm plate do with respect to supporting base, thereby center distance of belt wheel is changed, increased belt tension.And the arc structure of spring and fixing spring can play damping effect.Between bearing and bearing pin, plastic bushing is set, can plays damping effect Idle wheel.
Description of drawings
Fig. 1 is the utility model structure sectional view.
Fig. 2 is Fig. 1 right elevation.
Mark among the figure: 1 cover plate, 2 arm plates, 3 swivel nuts, 4 springs, 5 Idle wheels, 6 bearings, 7 linings, 8 bearing pins, 9 dust guards, 10 arc grooves, 11 positioning holes, 12 supporting base matrixes.
Embodiment
Be described in further detail of the present utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, 2, tension device comprises cover plate 1, arm plate 2, Idle wheel 5, passive swivel nut 3 passes the tapped hole that cover plate is stretched in arm plate lower end, screw thread on the swivel nut outer peripheral surface connects with the cover plate internal thread is fastening, inner bolt hole by swivel nut, with screw the exterior edge face of cover plate is pressed on the supporting base matrix 12, the locating stud corresponding part with the supporting base matrix on the exterior edge face of cover plate is provided with circumferential positioning hole 11, and the arm plate can be made axial rotary oscillation around swivel nut.Two relative arc grooves 10 are arranged between arm plate and the cover plate, and the two ends of every groove are provided with a spring stop piece, and wherein one is connected on the arm plate, and one is connected on the cover board, and two springs are separately positioned in two arc grooves between the spring stop piece.The upper end of arm plate and bearing pin 8 are connected, and the other end of bearing pin is assemblied on the Idle wheel 5 by bearing 6, and plastic bushing 7 is set between bearing and the bearing pin, can play the effect of damping, and the bearing outer installment has dust guard.
Adopt the belt stretcher of above structure, when needs are adjusted the tension force of Idle wheel, by the spring of different length is set between the catch at arc groove two ends, can between arm plate and cover plate, produce a torsion, make arm plate both sides belt tension different, cause Idle wheel around of the swing of arm plate do, thereby center distance of belt wheel is changed, increased belt tension with respect to supporting base.And the arc structure of spring and fixing spring can play damping effect.
Claims (6)
1, a kind of belt stretcher, comprise arm plate (2), Idle wheel (5), bearing pin (8), supporting shaft one end is assemblied on the Idle wheel by bearing (6), its the other end is connected in arm plate upper end, arm plate lower end is supported on the supporting base matrix (12), it is characterized in that: also comprise cover plate (1) and swivel nut (3), cover plate is arranged between arm plate and the supporting base matrix, swivel nut passes the arm plate and the cover plate lower end is fixed, fastening piece passes swivel nut cover plate is pressed on the supporting base matrix, two relative arc grooves (10) are arranged between arm plate and the cover plate, the two ends of every groove are provided with a spring stop piece, wherein one is connected on the arm plate, and one is connected on the cover board, and two springs are separately positioned in two arc grooves between the spring stop piece.
2, belt stretcher as claimed in claim 1 is characterized in that: described cover plate endoporus and swivel nut outer peripheral surface scyewed joint.
3, belt stretcher as claimed in claim 2 is characterized in that: described fastening piece is a screw, and the inner bolt hole that screw passes swivel nut is pressed on cover plate on the supporting base matrix.
4, belt stretcher as claimed in claim 1 is characterized in that: the exterior edge face of described cover plate is provided with the circumferential positioning hole (11) corresponding with the locating stud of supporting base matrix.
5, as claim 1,2,3 or 4 described belt stretchers, it is characterized in that: lining (7) is set between described bearing and the bearing pin.
6, belt stretcher as claimed in claim 5 is characterized in that: described lining is a plastic bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200634399U CN201246449Y (en) | 2008-05-16 | 2008-05-16 | Belt stretcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200634399U CN201246449Y (en) | 2008-05-16 | 2008-05-16 | Belt stretcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246449Y true CN201246449Y (en) | 2009-05-27 |
Family
ID=40730271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200634399U Expired - Lifetime CN201246449Y (en) | 2008-05-16 | 2008-05-16 | Belt stretcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246449Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943852A (en) * | 2012-11-16 | 2013-02-27 | 河南省法斯特散热器有限公司 | Automatic tensioning device of belt wheel |
| CN103671777A (en) * | 2013-12-31 | 2014-03-26 | 吴江市中盛机械有限公司 | Belt tensioning device |
| CN111065843A (en) * | 2017-09-07 | 2020-04-24 | Ntn株式会社 | Tension unit for auxiliary machine belt |
-
2008
- 2008-05-16 CN CNU2008200634399U patent/CN201246449Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943852A (en) * | 2012-11-16 | 2013-02-27 | 河南省法斯特散热器有限公司 | Automatic tensioning device of belt wheel |
| CN103671777A (en) * | 2013-12-31 | 2014-03-26 | 吴江市中盛机械有限公司 | Belt tensioning device |
| CN111065843A (en) * | 2017-09-07 | 2020-04-24 | Ntn株式会社 | Tension unit for auxiliary machine belt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 612460 Sichuan Qingshen County Industrial Development Zone Patentee after: SICHUAN DAWN MACHINERY CO., LTD. Address before: 612460 Sichuan Qingshen County Industrial Development Zone Patentee before: Sichuan Dawn Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090527 |
|
| CX01 | Expiry of patent term |