CN103267097B - A kind of stretcher - Google Patents
A kind of stretcher Download PDFInfo
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- CN103267097B CN103267097B CN201310238658.1A CN201310238658A CN103267097B CN 103267097 B CN103267097 B CN 103267097B CN 201310238658 A CN201310238658 A CN 201310238658A CN 103267097 B CN103267097 B CN 103267097B
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- tensioner arm
- stretcher
- spring
- bottom shell
- self
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Abstract
The present invention relates to a kind of stretcher, described stretcher comprises housing, the spring being arranged in housing, the outer setting of described spring has the collar coordinating spring to rotate, described stretcher also comprises tensioner arm, coupling spindle core, described tensioner arm center is provided with centre hole, centre hole is equipped with self-lubricating bearing, self-lubricating bearing coordinates with coupling spindle core, tensioner arm can be rotated around coupling spindle core, described spring one end connects bottom shell, the other end connects tensioner arm, tensioner arm and housing is made to produce revolving force by spring, described stretcher also comprises belt pulley shell, bearing, bolt, dust guard and bearing are tightened on tensioner arm by described bolt. this one-piece construction is simple, easy to operate, cost is lower, described central rotating shaft is cast in housing bottom to inlay the form of part, makes that both are firm is combined in together, becomes as a whole, and stability is better, it may also be useful to the life-span is longer.
Description
Technical field
The present invention relates to a kind of stretcher, the stretcher that engine upper belt transmits specifically, belongs to drive technology field.
Background technology
Stretcher is maintenance device conventional on belt, chain transmission system, it is characterized in keeping belt, chain can have suitable tensioning belt tension in transmission process, thus avoid slipping of belt, or avoid synchronous band to occur to jump tooth, de-tooth phenomenon, or prevent belt from loosening, come off, alleviate belt wheel, belt abrasion. The structure of stretcher is varied, it roughly comprises stationary structure and elasticity self-regulation structure, wherein the many employings of stationary structure fix adjustable belt wheel regulate belt tensioning, elasticity self-regulation structure many employings elasticity parts can automatic rebounding control belt, chain tensioning. Mostly there is following problem in the stretcher in existing market, complex structure, and its manufacturing cost is higher; Some prices are relatively cheap, but its quality is poor, it may also be useful to the life-span is shorter. Therefore, exigence one and price is cheap and the guaranteed stretcher of quality.
Summary of the invention
The present invention is just for the technical problem existed in prior art, it is provided that the stretcher that a kind of structure is simple, easy to operate, cost is lower, and this stretcher structure is simple, stable performance, firm, and process for processing is simple, easy to operate.
In order to realize above-mentioned purpose, the technical scheme of the present invention is as follows, a kind of stretcher, it is characterized in that, described stretcher comprises bottom shell, the spring being arranged in housing, the outer setting of described spring has the collar coordinating spring to rotate, described stretcher also comprises tensioner arm, coupling spindle core, described tensioner arm center is provided with centre hole, centre hole is equipped with self-lubricating bearing, self-lubricating bearing coordinates with coupling spindle core, tensioner arm can be rotated around coupling spindle core, described spring one end connects bottom shell, the other end connects tensioner arm, tensioner arm and housing is made to produce revolving force by spring, described stretcher also comprises belt pulley shell, bearing, bolt, dust guard and bearing are tightened on tensioner arm by described bolt.
As a modification of the present invention, described stretcher also comprises nylon pad and riveting sheet, and described nylon pad and riveting sheet are arranged between tensioner arm and shell.As a modification of the present invention, being provided with center bearing in described bottom shell, described center bearing is cast in bottom shell to inlay the form of part, makes that both are firm is combined in together, becomes as a whole.
As a modification of the present invention, the bottom of described bottom shell is provided with the first screw face and the first perpendicular, described first perpendicular is arranged on the top of the first screw face, described first screw face and the first perpendicular and spring cooperating so that vertical being placed in bottom shell of spring.
As a modification of the present invention, described collar comprise supporting cup and with support circle with the use of nylon bush. As a modification of the present invention, described supporting cup being provided with groove, the centre of described nylon bush is provided with boss A, and described boss A sticks in groove so that it is an entirety that supporting cup and nylon bush connect.
As a modification of the present invention, bottom described tensioner arm, it is provided with the 2nd screw face and the 2nd perpendicular, described 2nd screw face and the 2nd perpendicular and spring cooperating so that spring is vertically placed.
As a modification of the present invention, the bottom of described tensioner arm is provided with groove, and the bottom of described nylon bush is provided with boss B, and described boss B sticks in the groove of tensioner arm so that it is an entirety that nylon bush and tensioner arm connect.
As a modification of the present invention, described stretcher comprises two self-lubricating bearings, and described self-lubricating bearing compresses the two ends of tensioner arm centre hole respectively, and described central rotating shaft and two self-lubricating bearings are slidably connected.
Relative to prior art, the advantage of the present invention is as follows, and 1) this one-piece construction is simple, easy to operate, cost is lower; 2) this stretcher produce, complete processing simple, and reliable in quality, substantially prolongs the work-ing life of stretcher, facilitates the popularization greatly that domestic stretcher is produced.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is sealed supporting ring structure schematic diagram of the present invention;
Fig. 3 is nylon bush structural representation of the present invention;
Fig. 4 is bottom shell structural representation of the present invention;
Fig. 5 is bottom shell structural representation of the present invention;
Fig. 6 is spring structure schematic diagram of the present invention;
Fig. 7 is tensioner arm structural representation of the present invention;
Fig. 8 is tensioner arm structural representation of the present invention;
In figure: 1 housing, 2 central rotating shafts, 3 springs, 4 supporting cups, 5 nylon bushs, 6 self-lubricating bearings, 7 tensioner arms, 8 nylon pads, 9 riveting sheets, 10 belt pulley shells, 11 bearings, 12 dust guards, 13 bolts, 14 first screw faces, 15 first perpendiculars, 16 spring end faces, 17 the 2nd screw faces, 18 the 2nd perpendiculars, 19 spring end faces, 20 grooves, 21 boss A, 22 boss B, 23 grooves, 24 planes, 25 planes, 26 planes, 27 planes, 28 planes.
Embodiment
In order to deepen the understanding of the present invention and understanding, below in conjunction with the drawings and specific embodiments the present invention made further instructions and introduce.
Embodiment 1:See Fig. 1, a kind of stretcher, described stretcher comprises bottom shell 1, the spring 3 being arranged in housing, the outer setting of described spring has the collar coordinating spring to rotate, described stretcher also comprises tensioner arm 7, coupling spindle core, described tensioner arm center is provided with centre hole, centre hole is equipped with self-lubricating bearing 6, self-lubricating bearing 6 coordinates with coupling spindle core, tensioner arm can be rotated around coupling spindle core, described spring one end connects bottom shell, the other end connects tensioner arm, tensioner arm and housing is made to produce revolving force by spring, described stretcher also comprises belt pulley shell, bearing 11, bolt 13, dust guard 12 and bearing are tightened on tensioner arm 7 by described bolt.Its middle shell 1 is aluminum alloy die casting, simple by this technical scheme one-piece construction of mould one-step die casting, reliable in quality, and production and processing technology is simple, and cost is lower, it may also be useful to the life-span is longer.
Embodiment 2:See Fig. 1, as a modification of the present invention, described stretcher also comprises nylon pad 8 and riveting sheet 9, and described nylon pad 8 and riveting sheet 9 are arranged between tensioner arm 7 and belt pulley shell 10. Nylon pad 8, between part tensioner arm 7 and riveting sheet 9, plays a part to support and reduce planar friction; Riveting sheet 9 is connected into an entirety with central rotating shaft 2 mode of riveted joint. All the other advantages and embodiment 1 are completely identical.
Embodiment 3:See Fig. 1, as a modification of the present invention, being provided with central rotating shaft 2 in described bottom shell 1, described central rotating shaft 2 is cast in bottom shell to inlay the form of part, makes that both are firm is combined in together, becomes as a whole. All the other advantages and embodiment 1 are completely identical.
Embodiment 4:See Fig. 4, Fig. 5, as a modification of the present invention, the bottom of described housing 1 is provided with the first screw face 14 and the first perpendicular 15, described first perpendicular 15 is arranged on the top of the first screw face 14, wherein the first screw face 14 is consistent with whisker helix angle, ensure that spring is placed vertical, described first screw face 14 and the first perpendicular 15 and spring 3 cooperating, make spring 3 vertical be placed in bottom shell 1, during work, the first perpendicular 15 reactive force is in spring end face 16. All the other advantages and embodiment 1 are completely identical.
Embodiment 5:See Fig. 2, Fig. 3,As a modification of the present invention, described collar comprise supporting cup 4 and with support circle with the use of nylon bush 5. Supporting cup 4 has inner plane 24, and outer plane 25, the disc 26 of inner plane 24 and tensioner arm 7 is fitted, and the outer plane 25 of supporting cup 4 is fitted with the inner plane 27 of nylon lining ring 5, the outer plane 28 of nylon lining ring 5 is fitted with the inner plane 29 of housing 1, and this binding face has relative displacement to produce damping. All the other advantages and embodiment 1 are completely identical.Embodiment 6:See Fig. 2, Fig. 3, as a modification of the present invention, being provided with groove 20 on described supporting cup 4, described groove 20 is set to two, it is also possible to be three or more, the centre of described nylon bush 5 is provided with boss A21, the quantity of described boss A is set to two, it is also possible to be three or more, and described boss A21 sticks in groove 20, it is an entirety that supporting cup 4 and nylon bush 5 are connected, more firmly. All the other advantages and embodiment 1 are completely identical.
Embodiment 7:See Fig. 7, as a modification of the present invention, the 2nd screw face 17 and the 2nd perpendicular 18 it is provided with bottom described tensioner arm 7, described 2nd screw face is consistent with whisker helix angle, ensure that spring is placed vertical, described 2nd screw face 17 and the 2nd perpendicular 18 and spring cooperating, during work, the 2nd perpendicular 18 reactive force is in spring end face 19 so that spring is vertically placed. All the other advantages and embodiment 1 are completely identical.
Embodiment 8:See Fig. 3, Fig. 8, as a modification of the present invention, the bottom of described tensioner arm 7 is provided with groove 23, and the bottom of described nylon bush 5 is provided with boss B22, described boss B22 sticks in the groove 23 of tensioner arm so that it is an entirety that nylon bush 5 and tensioner arm 7 connect. All the other advantages and embodiment 1 are completely identical.
Embodiment 9:See Fig. 1, as a modification of the present invention, described stretcher comprises two self-lubricating bearings 6, and described self-lubricating bearing 6 compresses the two ends of tensioner arm 7 centre hole respectively, and described central rotating shaft 2 and two self-lubricating bearings 6 are slidably connected. All the other advantages and embodiment 1 are completely identical.
Embodiment 10:In addition, bottom shell 1 being provided with mark, described mark is used for marking the shortest belt, most long belt and changes the particular location of belt, handled easily. All the other structures are completely identical with advantage and embodiment 1. At least one in technology feature described in embodiment 2,3,4,5,6,7,8,9,10 and embodiment 1 can also be combined by the present invention, form new enforcement mode. It should be noted that above-described embodiment is only the better embodiment of the present invention; it is not used for limiting protection scope of the present invention; equivalent replacement done on above-mentioned basis or replacement all belong to protection scope of the present invention, and protection scope of the present invention is as the criterion with claim book.
Claims (9)
1. a stretcher, it is characterized in that, described stretcher comprises bottom shell, the spring being arranged in bottom shell, the outer setting of described spring has the collar coordinating spring to rotate, described stretcher also comprises tensioner arm, coupling spindle core, described tensioner arm center is provided with centre hole, centre hole is equipped with self-lubricating bearing, self-lubricating bearing coordinates with coupling spindle core, tensioner arm can be rotated around coupling spindle core, described spring one end connects bottom shell, the other end connects tensioner arm, tensioner arm and bottom shell is made to produce revolving force by spring, described stretcher also comprises belt pulley shell, bearing, bolt, dust guard and bearing are tightened on tensioner arm by described bolt.
2. stretcher according to claim 1, it is characterised in that, described stretcher also comprises nylon pad and riveting sheet, and described nylon pad and riveting sheet are arranged between tensioner arm and bottom shell.
3. stretcher according to claim 1, it is characterised in that, it is provided with central rotating shaft in described bottom shell, described central rotating shaft is cast in bottom shell to inlay the form of part, makes that both are firm is combined in together, becomes as a whole.
4. stretcher according to claim 1 or 2 or 3, it is characterized in that, the bottom of described bottom shell is provided with the first screw face and the first perpendicular, described first perpendicular is arranged on the afterbody of the first screw face, first screw face and the first perpendicular and spring cooperating so that vertical being placed in bottom shell of spring.
5. stretcher according to claim 1, it is characterised in that, described collar comprise supporting cup and with support circle with the use of nylon bush.
6. stretcher according to claim 5, it is characterised in that, described supporting cup is provided with groove, the centre of described nylon bush is provided with boss A, and described boss A sticks in groove so that it is an entirety that supporting cup and nylon bush connect.
7. stretcher according to claim 1 and 2, it is characterised in that, the bottom of described tensioner arm is provided with the 2nd screw face and the 2nd perpendicular, described 2nd screw face and the 2nd perpendicular and spring cooperating so that spring is vertically placed.
8. stretcher according to claim 5 or 6, it is characterized in that, the bottom of described tensioner arm is provided with groove, and the bottom of described nylon bush is provided with boss B, described boss B sticks in the groove of tensioner arm so that it is an entirety that nylon bush and tensioner arm connect.
9. stretcher according to claim 3, it is characterised in that, described stretcher comprises two self-lubricating bearings, and described self-lubricating bearing is pressed into the two ends of tensioner arm centre hole respectively, and described central rotating shaft and two self-lubricating bearings are slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310238658.1A CN103267097B (en) | 2013-06-17 | 2013-06-17 | A kind of stretcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310238658.1A CN103267097B (en) | 2013-06-17 | 2013-06-17 | A kind of stretcher |
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| Publication Number | Publication Date |
|---|---|
| CN103267097A CN103267097A (en) | 2013-08-28 |
| CN103267097B true CN103267097B (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310238658.1A Active CN103267097B (en) | 2013-06-17 | 2013-06-17 | A kind of stretcher |
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| Country | Link |
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| CN (1) | CN103267097B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412989A (en) * | 2018-04-24 | 2018-08-17 | 联禾厚普（太仓）精密机械有限公司 | A kind of tensioning swing arm |
| CN110329728A (en) * | 2019-07-12 | 2019-10-15 | 安徽省赛威输送设备有限公司 | Conveyer scraper chain is tensioned compensation device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2477443Y (en) * | 2001-05-11 | 2002-02-20 | 无锡市永凯达齿轮制造有限责任公司 | Taper connecting automotive automatic belt tensioner |
| WO2008119594A1 (en) * | 2007-03-31 | 2008-10-09 | Schaeffler Kg | Tensioning device of a belt and chain drive |
| CN101421540A (en) * | 2006-03-22 | 2009-04-29 | 利滕斯汽车合伙公司 | Tensioner for flexible drives |
| CN102146991A (en) * | 2010-02-05 | 2011-08-10 | 盖茨优霓塔传动***(苏州)有限公司 | Tensioner |
| CN202381633U (en) * | 2011-12-29 | 2012-08-15 | 莱顿汽车部件（苏州）有限公司 | Tensioning pulley assembly of engine |
| CN202746515U (en) * | 2012-06-15 | 2013-02-20 | 广州汽车集团乘用车有限公司 | Belt tightener |
| CN203463574U (en) * | 2013-06-17 | 2014-03-05 | 江苏爱尔特实业有限公司 | Novel tensioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3962052B2 (en) * | 2004-11-02 | 2007-08-22 | 株式会社椿本チエイン | Hydraulic tensioner |
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2013
- 2013-06-17 CN CN201310238658.1A patent/CN103267097B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2477443Y (en) * | 2001-05-11 | 2002-02-20 | 无锡市永凯达齿轮制造有限责任公司 | Taper connecting automotive automatic belt tensioner |
| CN101421540A (en) * | 2006-03-22 | 2009-04-29 | 利滕斯汽车合伙公司 | Tensioner for flexible drives |
| WO2008119594A1 (en) * | 2007-03-31 | 2008-10-09 | Schaeffler Kg | Tensioning device of a belt and chain drive |
| CN102146991A (en) * | 2010-02-05 | 2011-08-10 | 盖茨优霓塔传动***(苏州)有限公司 | Tensioner |
| CN202381633U (en) * | 2011-12-29 | 2012-08-15 | 莱顿汽车部件（苏州）有限公司 | Tensioning pulley assembly of engine |
| CN202746515U (en) * | 2012-06-15 | 2013-02-20 | 广州汽车集团乘用车有限公司 | Belt tightener |
| CN203463574U (en) * | 2013-06-17 | 2014-03-05 | 江苏爱尔特实业有限公司 | Novel tensioner |
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| CN103267097A (en) | 2013-08-28 |
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