CN102878260A - Lever type belt tension pulley mechanism - Google Patents
Lever type belt tension pulley mechanism Download PDFInfo
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- CN102878260A CN102878260A CN2012103791655A CN201210379165A CN102878260A CN 102878260 A CN102878260 A CN 102878260A CN 2012103791655 A CN2012103791655 A CN 2012103791655A CN 201210379165 A CN201210379165 A CN 201210379165A CN 102878260 A CN102878260 A CN 102878260A
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Abstract
The invention discloses a lever type belt tension pulley mechanism which comprises a belt pulley, a belt pulley support, a bottom plate, a tension bolt mounting support, a tension bolt supporting block, a crank, a tension bolt and a rotating shaft. The belt pulley is arranged at the tail end of the crank, the bottom plate is arranged on the belt pulley support, the tension bolt supporting block is welded at the upper end of the crank, the tension bolt mounting support is fixed on the bottom plate, the crank and the tension bolt mounting support are fixedly connected through a bolt, and the front and back directions of the bottom plate are adjusted through a bolt hole. The crank is designed by a certain angle, comprises a short-arm end and a long-arm end, is capable of achieving unequal-diameter rotational movement of two ends thereof and is a key part of the lever type belt tension pulley mechanism for two-dimensional plane movement in a curve. The lever type belt tension pulley mechanism is simple in structure, convenient to maintain and adjust, capable of achieving two-dimensional planar transmission and light in acting force transmission and is used for belt transmission mechanisms.
Description
Technical field
The invention belongs to field of mechanical technique, be specifically related to a kind of expansion tightening wheel mechanism of belt gear.
Background technique
Expansion tightening wheel is the belt stretcher for belt transmission, car transmissions, usually formed by stationary housing, tension arms, wheel body, torsion spring, rolling bearing and spring axle sleeve etc., adjust the tension force of belt according to the different tightness of belt, the transmission system stability and safety is efficiently moved, and can reduce noise, prevent from skidding.Expansion tightening wheel is very important parts of mechanical fitting, and automatic tension and regular tensioner are arranged usually.
Domestic patent CN201487149U discloses " a kind of automatic expansion tightening wheel ", comprise bearing, axle sleeve, eccentric shaft, fixing frame, front cover and rear end cover, its major technique is, cooperate on the internal diameter of axle sleeve and be provided with axle, the external diameter of axle sleeve is provided with oilless bearing, cooperate on the oilless bearing external diameter and be provided with eccentric shaft, and the axle sleeve front end is fixedly connected with fixing frame, axle sleeve rear end and rear end cover riveted joint are provided with nylon jacket between rear end cover and eccentric shaft, and this nylon jacket is fixed by the step on the eccentric shaft, be provided with spring between rear end cover and the fixing frame, cooperate on the eccentric shaft external diameter to be provided with bearing.
The synchronous belt tension mechanism that uses on domestic patent CN101168298A press machine.It discloses, and this Fastening mechanism comprises the fixed base, the eccentric shaft that is connected with fixed base that are installed on the press ram, is installed in the expansion tightening wheel on the eccentric shaft.Unscrew the lock screw on the fixed base during use, the angle of eccentric rotation axis makes expansion tightening wheel compress synchronous belt, reaches the tensioner state of adjusting Timing Belt, tightens lock screw after adjusting again.Its advantage is to regulate at any time the tensioner state of Timing Belt, has avoided Timing Belt tension and excessively loose shortcoming.
At present both at home and abroad about expansion tightening wheel technology and product generally by improve expansion tightening wheel accessory such as spring and bearing etc., adjust belt wheel and coupling shaft spacing, spacing or be fixedly connected with mode etc., make it easy to processing, assembling and use, and make every effort to reduce cost and increase the service life, but also there is certain narrow limitation.Common expansion tightening wheel is fixed on the guide rail that only has the single movement direction in the prior art, adopt the mode of single direction tensioner, one direction tensioner belt, rely on bolton expansion tightening wheel slide block, be easy to cause expansion tightening wheel loosening in the long-time high rotary speed movement process of belt, expansion tightening wheel motion heaviness in the individual event guide rail is light not.
Summary of the invention
The objective of the invention is to overcome defects and deficiency in the prior art, a kind of simple structure be provided, safeguard to adjust easy, can be in the two dimensional surface transmission, and force transfer light expansion tightening wheel, be used for belt gear.
The present invention is achieved by the following technical solutions:
A kind of Lever type belt tension wheel mechanism, comprise belt pulley, it is characterized in that, this expansion tightening wheel also comprises pulley support, base plate, tension bolt mounting bracket, tension bolt support block, crank, tension bolt and rotating shaft, and wherein, belt pulley is arranged on the end of crank, at pulley support base plate is set, the tension bolt mounting bracket then is fixed on the base plate, and the tension bolt support block is welded on the crank upper end, by bolt crank is fixedly connected with the tension bolt mounting bracket.
Described base plate is the basis that expansion tightening wheel mechanism and a whole set of transmission device link together, base plate is provided with three stay bolt holes, the position in three stay bolt holes is mutually 60 °, be fixed bolt and nut, can conveniently regulate the relative position of each parts, especially the fore-and-aft direction of regulating base board is further adjusted the relative position of expansion tightening wheel and belt wheel, guarantees the belt parallel drive.
Described crank is the support arm of the described belt pulley of belt tension, and 150 ° of obtuse angles of whole one-tenth are provided with bolt hole, by described bolt hole described crank are fixed on the tension bolt mounting bracket, make it to rotate around bolt
One side of the position deviation crank center line of described bolt hole, and crank is unequal in the size of these bolt hole both sides, be galianconism end and long arm end, the camber line displacement of galianconism end is less than the camber line displacement of long arm end, can realize not isometrical the rotatablely moving at crank two ends, be the critical component that the two dimensional surface movement in a curve is done by this expansion tightening wheel mechanism.
By the manual tune tension bolt, the masterpiece that is applied to tension bolt is used on the tension bolt support block, because the tension bolt support block is welded on the crank, thereby driving crank rotates with respect to the tension bolt mounting bracket, as rotating shaft, thereby driving the belt pulley of the other end, the expansion tightening wheel crank does the arc trajectory motion with the bolt that connects the two.
Described tension bolt mounting bracket is provided with tapped hole, and tension bolt and locking nut are installed in the described tapped hole, and tension bolt and locking nut are installed in the tapped hole of tension bolt support, is used for adjusting and the fixing position of expansion tightening wheel.
Compared with prior art, belt tension wheel mechanism provided by the invention has following advantage:
One, a kind of Lever type belt tightening wheel provided by the invention, it be basic adopting the mechanical lever principle, has saved expansion tightening wheel slide block and slide block guide rail in the traditional expansion tightening wheel mechanism, cost of production reduces greatly.
Two, the stay bolt hole that arranges on the base plate of the present invention is different from conventional round bolt hole, it is advantageous that, the convenient relative position of regulating each parts, especially be fixed bolt and nut, can adjust easily the relative position of expansion tightening wheel and belt wheel, guarantee the belt parallel drive.
Three, utilize described crank device, make traditional expansion tightening wheel change into movement in a curve on the two-dimensional space same plane at the unidirectional straight line motion of one dimension.
Four, in belt tension wheel mechanism provided by the present invention, bolt is equivalent to the running shaft in the mechanical lever mechanism, and crank is the basis of expansion tightening wheel motion, is the support arm that belt is made the tensioner belt pulley.Compare with staight shank, crank is larger to the tensioner scope of belt pulley, crank is fixed on the bolt support by bolt hole, rotate around bolt, wherein, for conventional running shaft, the camber line displacement of galianconism end is less than the camber line displacement of long arm end, thereby realized adjusting by a small margin in the tension bolt situation, the tensioner belt wheel of the crank the other end just can be effectively with the amplitude tensioner belt of several times.After the angle of adjusting expansion tightening wheel mechanism, locking tension bolt and locking nut, fixedly lost efficacy thereby make expansion tightening wheel mechanism accident can not occur in the course of the work in the tension bolt position.
Description of drawings
Fig. 1 is the structural representation of a kind of Lever type belt tightening wheel of the present invention.
Fig. 2 is the structural representation of crank in a kind of Lever type belt tightening wheel of the present invention.
Among Fig. 1,1 base plate, 2 tension bolt mounting brackets, 3 bolts, 4 tension bolts, 5 cranks, 6 tension bolt support blocks, 7 belt pulleys, 8 rotating shafts.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the invention is described further:
As shown in Figure 1, a kind of Lever type belt tension wheel mechanism provided by the present invention, mainly comprise belt pulley 7, pulley support, base plate 1, tension bolt mounting bracket 2, tension bolt support block 6, crank 5, tension bolt 4 and rotating shaft 8, base plate 1 is installed on the pulley support, regulates the fore-and-aft direction of described mounting plate 1 by bolt hole; Tension bolt 4 and locking nut are installed in the tapped hole of tension bolt support 2, and tension bolt 4 mounting brackets then are fixed on the base plate; By bolt 3 crank 5 is fixedly connected with tension bolt mounting bracket 2; Tension bolt support block 6 is installed on the crank 5, and the end of crank 5 is equipped with belt pulley 7.
Base plate 1 is fixed on the pulley support, adjust its position by the stay bolt hole when being necessary, belt pulley 7 tensioner belts, adjust the power that tension bolt 4 can apply to tension bolt support block 6 jacking, thereby drive crank 5 motions, crank 5 drives expansion tightening wheel 7 and does movement in a curve thereupon, thereby gives expanding force of belt, be adjusted to angle suitable after, by locking nut with bolt 3 locking.
Along with the accumulation of belt pulley operating time, adjust crank 5 by tension bolt 4 in good time, thereby adjust the expanding force of belt pulley 7.Lock tension bolt 2 and locking nut in addition after adjusting the expansion tightening wheel angle, fixedly lost efficacy thereby make expansion tightening wheel accident can not occur in the course of the work in the position of tension bolt 4.
By above-described embodiment, a kind of simple structure is provided, safeguard to adjust easy, and force transfer light expansion tightening wheel, be used for belt gear.
The present invention is not limited only to above-described embodiment, and in addition to the implementation, the present invention can also have other mode of execution, and all employings are equal to the technological scheme of replacement or equivalent transformation, all drop in the protection domain of requirement of the present invention.
Claims (5)
1. Lever type belt tension wheel mechanism, comprise belt pulley (7), it is characterized in that, described expansion tightening wheel also comprises pulley support, base plate (1), tension bolt mounting bracket (2), tension bolt support block (6), crank (5), tension bolt (4) and rotating shaft (8), wherein, belt pulley is arranged on the end of crank (5), be provided with base plate (1) at pulley support, tension bolt support block (6) is welded on crank (5) upper end, tension bolt mounting bracket (2) then is fixed on the base plate (1), by bolt (3) crank (5) is fixedly connected with tension bolt mounting bracket (2).
2. a kind of Lever type belt tension wheel mechanism according to claim 1, it is characterized in that, described base plate (1) is provided with three stay bolt holes, its position is mutually 60 °, be fixed again bolt and nut, can regulate the relative position of each parts, especially the fore-and-aft direction of regulating base board, further adjust the relative position of expansion tightening wheel and belt wheel, to guarantee the belt parallel drive.
3. a kind of Lever type belt tension wheel mechanism according to claim 1, it is characterized in that, described crank (5) is the support arm of the described belt pulley of belt tension, 150 ° of obtuse angles of whole one-tenth, be provided with bolt hole, by described bolt hole described crank (5) is fixed on the tension bolt mounting bracket, makes it to rotate around bolt (3).
4. a kind of Lever type belt tension wheel mechanism according to claim 3, it is characterized in that, described bolt hole also comprises, one side of its position deviation crank center line, and described crank is unequal in the size of described bolt hole both sides, be galianconism end and long arm end, the camber line displacement of galianconism end is less than the camber line displacement of long arm end, can realize not isometrical the rotatablely moving at described crank two ends.
5. a kind of Lever type belt tension wheel mechanism according to claim 1, it is characterized in that, described tension bolt mounting bracket (2) is provided with tapped hole, tension bolt (4) and locking nut are installed in the described tapped hole, by the described tension bolt of manual tune, the masterpiece that is applied to tension bolt is used on the tension bolt support block, and driving crank rotates with respect to the tension bolt mounting bracket, thereby the belt pulley that drives the other end is done the arc trajectory motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210379165.5A CN102878260B (en) | 2012-10-09 | 2012-10-09 | A kind of lever type belt tension pulley mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210379165.5A CN102878260B (en) | 2012-10-09 | 2012-10-09 | A kind of lever type belt tension pulley mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102878260A true CN102878260A (en) | 2013-01-16 |
| CN102878260B CN102878260B (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210379165.5A Active CN102878260B (en) | 2012-10-09 | 2012-10-09 | A kind of lever type belt tension pulley mechanism |
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| CN (1) | CN102878260B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265321A (en) * | 2017-07-24 | 2017-10-20 | 北京汽车研究总院有限公司 | One kind protection servicing unit |
| CN107435715A (en) * | 2017-07-21 | 2017-12-05 | 宁波新贵族运动用品有限公司 | A kind of polywedge bet automatic tension device and treadmill |
| CN107866303A (en) * | 2017-12-19 | 2018-04-03 | 唐山天和环保科技股份有限公司 | A kind of limestone crushing Coupled Rigid-flexible type strength double-geared roller crusher and its technique |
| CN108155765A (en) * | 2018-02-02 | 2018-06-12 | 安徽皖南电机股份有限公司 | Turn device |
| CN108506436A (en) * | 2018-06-04 | 2018-09-07 | 东风井关农业机械有限公司 | A kind of significantly belt tension tooling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3637212A1 (en) * | 1986-10-31 | 1988-05-05 | Bayerische Motoren Werke Ag | Tensioning-roller arrangement on a belt drive |
| US4854922A (en) * | 1988-03-19 | 1989-08-08 | Ina Walzlager Schaeffler Kg | Belt tensioning device |
| CN2635991Y (en) * | 2003-06-25 | 2004-08-25 | 姜涛 | Rocking arm type automatic tension device for belt |
| JP2005265039A (en) * | 2004-03-18 | 2005-09-29 | Ntn Corp | Hydraulic auto tensioner |
| US20080242461A1 (en) * | 2007-03-29 | 2008-10-02 | Brian Gagnon | Belt and pulley drive for a personal wheeled vehicle |
| CN201672019U (en) * | 2010-03-17 | 2010-12-15 | 山东天鹅棉业机械股份有限公司 | Belt tensioning mechanism |
| CN201973190U (en) * | 2011-03-15 | 2011-09-14 | 徐工集团工程机械股份有限公司科技分公司 | Automatic tensioning device of material distribution box of spreading machine |
| JP2012154455A (en) * | 2011-01-27 | 2012-08-16 | Daihatsu Motor Co Ltd | Structure of auto-tensioner |
| CN202883909U (en) * | 2012-10-09 | 2013-04-17 | 天津凯德实业有限公司 | Lever-type belt tension roller mechanism |
-
2012
- 2012-10-09 CN CN201210379165.5A patent/CN102878260B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3637212A1 (en) * | 1986-10-31 | 1988-05-05 | Bayerische Motoren Werke Ag | Tensioning-roller arrangement on a belt drive |
| US4854922A (en) * | 1988-03-19 | 1989-08-08 | Ina Walzlager Schaeffler Kg | Belt tensioning device |
| CN2635991Y (en) * | 2003-06-25 | 2004-08-25 | 姜涛 | Rocking arm type automatic tension device for belt |
| JP2005265039A (en) * | 2004-03-18 | 2005-09-29 | Ntn Corp | Hydraulic auto tensioner |
| US20080242461A1 (en) * | 2007-03-29 | 2008-10-02 | Brian Gagnon | Belt and pulley drive for a personal wheeled vehicle |
| CN201672019U (en) * | 2010-03-17 | 2010-12-15 | 山东天鹅棉业机械股份有限公司 | Belt tensioning mechanism |
| JP2012154455A (en) * | 2011-01-27 | 2012-08-16 | Daihatsu Motor Co Ltd | Structure of auto-tensioner |
| CN201973190U (en) * | 2011-03-15 | 2011-09-14 | 徐工集团工程机械股份有限公司科技分公司 | Automatic tensioning device of material distribution box of spreading machine |
| CN202883909U (en) * | 2012-10-09 | 2013-04-17 | 天津凯德实业有限公司 | Lever-type belt tension roller mechanism |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435715A (en) * | 2017-07-21 | 2017-12-05 | 宁波新贵族运动用品有限公司 | A kind of polywedge bet automatic tension device and treadmill |
| CN107265321A (en) * | 2017-07-24 | 2017-10-20 | 北京汽车研究总院有限公司 | One kind protection servicing unit |
| CN107265321B (en) * | 2017-07-24 | 2023-04-07 | 北京汽车集团越野车有限公司 | Protection auxiliary device |
| CN107866303A (en) * | 2017-12-19 | 2018-04-03 | 唐山天和环保科技股份有限公司 | A kind of limestone crushing Coupled Rigid-flexible type strength double-geared roller crusher and its technique |
| CN108155765A (en) * | 2018-02-02 | 2018-06-12 | 安徽皖南电机股份有限公司 | Turn device |
| CN108155765B (en) * | 2018-02-02 | 2023-12-19 | 安徽皖南电机股份有限公司 | Indexing device |
| CN108506436A (en) * | 2018-06-04 | 2018-09-07 | 东风井关农业机械有限公司 | A kind of significantly belt tension tooling |
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| Publication number | Publication date |
|---|---|
| CN102878260B (en) | 2018-05-01 |
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