CN104358844A - Novel tensioner - Google Patents
Novel tensioner Download PDFInfo
- Publication number
- CN104358844A CN104358844A CN201410544226.8A CN201410544226A CN104358844A CN 104358844 A CN104358844 A CN 104358844A CN 201410544226 A CN201410544226 A CN 201410544226A CN 104358844 A CN104358844 A CN 104358844A
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- CN
- China
- Prior art keywords
- housing
- tension arms
- nylon
- rotating shaft
- central rotating
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- 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.)
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention relates to a novel tensioner. The tensioner is characterized by comprising a bottom casing, a spring arranged in the casing, a tensioning arm and a central rotating shaft, wherein the central rotating shaft is pressed and cast in the casing, and the central rotating shaft and the casing are formed into an integral whole; a center hole is formed in the center of the tensioning arm, a self-lubricating bearing is assembled in the center hole, and the self-lubricating bearing and the tensioning arm are matched to press the self-lubricating bearing into the center hole of the tensioning arm; a nylon taper sleeve is arranged between the casing and the tensioning arm; the tensioner also comprises a belt pulley, a bearing, a bolt and a dustproof cover, wherein the dustproof cover and the bearing are screwed on the tensioning arm by the bolt. The tensioner has the advantages of simple integral structure, convenience in operation and lower cost; the central rotating shaft is cast in the bottom of the casing in the manner of a mold insert, so that the central rotating shaft and the casing are reliably combined together and are formed into a whole, the firmness is better, and the service life is longer.
Description
Technical field
The present invention relates to a kind of stretcher, especially relate to a kind of novel tensioner, belong to technical field of automobile parts.
Background technique
Stretcher is holding device conventional on belt, chain transmission system, its Main Function is maintenance belt, chain can have suitable tension force in transmission process, thus avoid belt slippage, or avoid Timing Belt to occur to jump tooth, de-tooth phenomenon, or prevent chain-loose, come off, alleviate sprocket wheel, chain wear.The structure of stretcher is varied, it roughly comprises stationary structure and elasticity self-regulation structure, wherein the tensioning that adjustable sprocket wheel regulates belt, sprocket wheel is fixed in the many employings of stationary structure, elasticity self-regulation structure many employings elastic member can automatic rebounding control belt, chain tensioning, but mostly there is following problem in the stretcher on market, complex structure, complex production process, produce beat, tilt phenomenon after Long-Time Service, cause train thrashing to increase, produce abnormal sound.Quality can not be guaranteed, and working life is shorter, and entreprise cost is higher, and therefore, a kind of new technological scheme of exigence solves this technical problem.
Summary of the invention
In order to solve above-mentioned Problems existing, the invention discloses a kind of novel tensioner, this equipment is a kind of smart structural design, novel tensioner safe and reliable, easy to use, with low cost, realizes the maximization of functions of the equipments and economic benefit.
To achieve these goals, technological scheme of the present invention is as follows, a kind of novel tensioner, described stretcher comprises bottom shell, be arranged on the spring in housing, described stretcher also comprises tension arms, central rotating shaft, central rotating shaft die casting in the housing, become to be integrated with housing, described tension arms center is provided with center hole, self-lubricating bearing is equipped with in center hole, self-lubricating bearing coordinates with tension arms and is pressed in tension arms center hole by self-lubricating bearing, the centre of described housing and tension arms is provided with nylon tapered sleeve, nylon tapered sleeve connects housing, tension arms, product is made to produce enough dampings.Described stretcher also comprises skin belt pulley, bearing, bolt and dust cover, and dust cover and bearing are tightened on tension arms by described bolt.During press-in self-lubricating bearing, pressure head need be concentric with center hole, what self-lubricating bearing was firm is adsorbed on seaming chuck, do not allow tilt phenomenon, in order to avoid damage workpiece by pressure, the self-lubricating bearing end face after press-fiting does not allow higher than aluminum component end face, inner wall smooth, PTFE has not allowed damage, and seam crossing has not allowed discounting phenomenon; Described central rotating shaft 7 is arranged in bottom shell, and described central rotating shaft is cast in housing bottom with the form of mold insert, makes both firm combining, becomes as a whole; In this technological scheme, the below of described spring is provided with nylon tapered sleeve, the top of spring is provided with self-lubricating bearing, position by nylon tapered sleeve, self-lubricating bearing are two-way up and down, make the location of product more stable, reliable, greatly reduce product to produce, put inclined phenomenon, effectively prevent Idle wheel product from should use the phenomenon tilting to produce noise.
As a modification of the present invention, described spring is made up of plane on spring body, spring and spring lower plane.Avoid in assembly process, occur assembling situation not in place.
As a modification of the present invention, described housing bottom is provided with housing spiral chute, tension arms spiral chute is provided with bottom described tension arms, described spring lower plane connects housing bottom housing spiral chute, on described spring, plane connects tension arms spiral chute, makes tension arms and housing produce pulling force by spring.
As a modification of the present invention, the bottom of described housing is provided with housing groove, and described nylon tapered sleeve is provided with nylon tapered sleeve boss, and described nylon tapered sleeve boss sticks in housing groove, and it is an entirety that nylon tapered sleeve is connected with housing.
As a modification of the present invention, described housing is provided with housing tapering, tension arms is provided with tension arms tapering, between described housing tapering and tension arms tapering, be provided with nylon tapered sleeve, make tension arms around housing into rotation, being rubbed by tension arms tapering and nylon tapered sleeve male cone (strobilus masculinus) forms damping.
As a modification of the present invention, described stretcher also comprises self-lubricating bearing, and described self-lubricating bearing compresses the upper end of tension arms center hole, and described central rotating shaft and self-lubricating bearing are slidably connected.Self-lubricating bearing is equipped with in center hole, self-lubricating bearing coordinates with tension arms and is pressed in tension arms center hole by self-lubricating bearing, when requirement press-fits, pressure head need be concentric with center hole, what self-lubricating bearing was firm is adsorbed on seaming chuck, has not allowed tilt phenomenon, in order to avoid damage workpiece by pressure, self-lubricating bearing end face after press-fiting does not allow higher than aluminum component end face, inner wall smooth, PTFE has not allowed damage, and seam crossing has not allowed discounting phenomenon.
As a modification of the present invention, described stretcher also comprises elastic cylindrical pin, and housing is also provided with elastic cylinder cotter way, is pressed into by elastic cylindrical pin in elastic cylinder cotter way, plays positioning action.
As a modification of the present invention, described stretcher comprises nylon dust cover, described nylon jacket is provided with nylon snap ring, described central rotating shaft is provided with central rotating shaft draw-in groove, described nylon snap ring and central rotating shaft draw-in groove carry out card and join, play the effect of fixing nylon dust cover, described nylon dust cover snaps in the central rotating shaft draw-in groove of central rotating shaft upper-end surface, and effective anti-sealing, dust etc. enter.
As a modification of the present invention, the cylindrical of described nylon tapered sleeve is evenly coated with lubricant grease, inner circle does not allow to be coated with lubricant grease, and operationally inside temperature is too high to use lubricant grease can prevent stretcher, transition friction, cause product failure, when installing nylon tapered sleeve, nylon tapered sleeve convex channel portion is placed in housing groove, and the effect of nylon tapered sleeve produces damping, and spacing tension arms, makes tension arms rotate around central rotating shaft and axially accurately locate.
As a modification of the present invention, the angle of described housing tapering is 9.5-10.5 °, and described tension arms tapering is 9.5-10.5 °.Described tension arms tapering and housing tapering cooperatively interact, more firmly.
Relative to prior art, advantage of the present invention is as follows: 1) this overall structure is simple, easy to operate, cost is lower;
2) in this technological scheme, described central rotating shaft is cast in housing bottom with the form of mold insert, and make both firm combining, become as a whole, soundness is better; 3) two ends of this technological scheme medi-spring are respectively arranged with plane and spring lower plane on spring, why arrange like this and avoid in assembly process, occur assembling situation not in place; 4) between housing and tension arms, arrange nylon tapered sleeve, self-lubricating bearing cleverly in this technological scheme, Main Function is that nylon tapered sleeve produces damping, and spacing tension arms, tension arms is rotated around central rotating shaft; Nylon tapered sleeve and self-lubricating bearing locate tension arms simultaneously, and it is firm to locate, 5) in this technological scheme, elastic cylindrical pin is set, housing is provided with elastic cylinder cotter way, elastic cylindrical pin is pressed in elastic cylinder cotter way, plays positioning action; 6) in this technological scheme, adopt nylon tapered sleeve conical surface location, location is reliable, can produce larger and stable damping, and damping is not because the wearing and tearing of using process change to some extent, effectively prevents, puts inclined phenomenon; 7) this stretcher is produced, processing technology is simple, and reliable in quality, substantially prolongs the working life of stretcher, facilitate the popularization greatly that domestic stretcher is produced.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is self lubricate bearing structural sectional view of the present invention;
Fig. 3 is nylon tapered sleeve structural representation of the present invention;
Fig. 4 is inventive shell groove structure schematic diagram;
Fig. 5 is tension arms helical groove structure schematic diagram of the present invention;
Fig. 6 is spring structure schematic diagram of the present invention;
Fig. 7 is shell helical groove structure schematic diagram of the present invention;
Fig. 8 is central rotating shaft structural representation of the present invention;
Fig. 9 is tension arms tapered configuration schematic diagram of the present invention;
Figure 10 is inventive shell tapered configuration schematic diagram;
Figure 11 is tension arms tapered configuration sectional view of the present invention;
Figure 12 is inventive shell tapered configuration cross-sectional schematic;
In figure: 1 is belt pulley, 2 is bearing, and 3 is bolt, and 4 is dust cover, 5 is tension arms, and 6 is self-lubricating bearing, rotating shaft centered by 7, and 8 is nylon tapered sleeve, 9 is housing, and 10 is nylon dust cover, and 11 is spring body, and 12 is elastic cylindrical pin, hole centered by 13,14 is housing groove, and 15 is boss, and 16 is tension arms spiral chute, 17 is plane on spring, and 18 is spring lower plane, and 19 is housing spiral chute, and 20 is nylon snap ring, rotating shaft draw-in groove centered by 21,22 is tension arms tapering, and 23 is housing tapering.
Embodiment
In order to deepen, to understanding of the present invention and understanding, below in conjunction with the drawings and specific embodiments, to illustrate the present invention further.
embodiment 1:
See Fig. 1, a kind of novel tensioner, comprising: described stretcher comprises bottom shell 9, be arranged on the spring 11 in housing, described stretcher also comprises tension arms 5, central rotating shaft 7, central rotating shaft 7 die casting in the housing, be integrated with housing 9 one-tenth, described tension arms 5 center is provided with center hole 13, self-lubricating bearing 6 is equipped with in center hole 13, self-lubricating bearing 6 coordinates with tension arms 5 and is pressed in tension arms 5 center hole by self-lubricating bearing 6, described housing 9 is provided with nylon tapered sleeve 8 with the centre of tension arms 5, described stretcher also comprises belt pulley 1, bearing 2, bolt 3 and dust cover 4, dust cover 4 and bearing 2 are tightened on tension arms 5 by described bolt 3, tightening torque 25 ± the 2.5N.m of bolt.During press-in self-lubricating bearing, pressure head need be concentric with center hole 13, and what self-lubricating bearing was firm is adsorbed on seaming chuck, can not have tilt phenomenon, in order to avoid damage workpiece by pressure, the self-lubricating bearing end face after press-fiting does not allow higher than aluminum component end face, specifically see Fig. 2; Inner wall smooth, PTFE is protective coating, improves the wearing-in period of product, and require not allowed damage, seam crossing has not allowed discounting phenomenon; Described central rotating shaft 7 is arranged in bottom shell, and described central rotating shaft is cast in housing bottom with the form of mold insert, makes both firm combining, becomes as a whole.
embodiment 2:
See Fig. 1, Fig. 6, as a modification of the present invention, described spring is made up of plane 17 on spring body 11, spring and spring lower plane 18.Avoid in assembly process, occur assembling situation not in place.All the other structures are identical with embodiment 1 with advantage.
embodiment 3:
See Fig. 1, Fig. 5, Fig. 6, Fig. 7, as a modification of the present invention, housing spiral chute 19 is provided with bottom described housing 9, tension arms spin slot 16 is provided with bottom described tension arms 5, described spring lower plane 18 connects housing 9 bottom shell spiral chute 19, and on described spring, plane 17 connects tension arms 5 spiral chute 16, makes tension arms 5 and housing 9 produce pulling force by spring 11.All the other structures are identical with embodiment 1 with advantage.
embodiment 4:
See Fig. 1, Fig. 3, Fig. 4, as a modification of the present invention, the bottom of described housing 9 is provided with housing groove 14, described nylon tapered sleeve 8 is provided with nylon tapered sleeve boss 15, and described nylon tapered sleeve boss 15 sticks in housing groove 14, and it is an entirety that nylon tapered sleeve is connected with housing.All the other structures are identical with embodiment 1 with advantage.
embodiment 5:
See Fig. 1, Fig. 9, Figure 10, as a modification of the present invention, described housing 9 is provided with housing tapering 23, tension arms is provided with tension arms tapering 22, be provided with nylon tapered sleeve 8 between described housing tapering 23 and tension arms tapering 22, tension arms is rotated around housing 9, being rubbed by tension arms tapering and nylon tapered sleeve male cone (strobilus masculinus) forms damping.All the other structures are identical with embodiment 1 with advantage.
embodiment 6:
See Fig. 1, Fig. 2, as a modification of the present invention, described self-lubricating bearing 6 compresses the upper end of tension arms center hole, and described central rotating shaft 7 is slidably connected with self-lubricating bearing.Be equipped with self-lubricating bearing 6 in center hole 13, self-lubricating bearing 6 coordinates with tension arms 5 and is pressed in tension arms 5 center hole by self-lubricating bearing 6.All the other structures are identical with embodiment 1 with advantage.
embodiment 7:
See Fig. 1, as a modification of the present invention, described stretcher also comprises elastic cylindrical pin 12, and housing is also provided with elastic cylinder cotter way, is pressed into by elastic cylindrical pin in elastic cylinder cotter way, plays positioning action.All the other structures are identical with embodiment 1 with advantage.
embodiment 8:
See Fig. 1, Fig. 8, as a modification of the present invention, described stretcher comprises nylon dust cover 10, described nylon dust cover is provided with nylon snap ring 20, described central rotating shaft is provided with central rotating shaft draw-in groove 21, described nylon dust cover snap ring 20 carries out card with central rotating shaft draw-in groove 21 and joins, that plays fixing nylon dust cover does use, and described nylon dust cover 10 snaps in the central rotating shaft draw-in groove of central rotating shaft upper-end surface.All the other structures are identical with embodiment 1 with advantage.
embodiment 9:
See Fig. 1, as a modification of the present invention, the cylindrical of described nylon tapered sleeve 8 is evenly coated with lubricant grease.Inner circle does not allow fat liquoring, and when installing nylon tapered sleeve 8, nylon tapered sleeve tongue 15 part is placed on housing groove 14 li, nylon tapered sleeve 8 effect produces damping, and spacing tension arms 5, make tension arms 5 rotate around central rotating shaft 7, all the other structures are identical with embodiment 1 with advantage.
embodiment 10:
See Fig. 1, as a modification of the present invention, the angle of described housing tapering is 9.5-10.5 °, and described tension arms tapering is 9.5-10.5 °.Described tension arms tapering and housing tapering cooperatively interact, more firmly.
Technical characteristics described in embodiment 2,3,4,5,6,7,8,9,10 at least one and embodiment 1 can be combined into new mode of execution by the present invention sea.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, also comprises the technological scheme be made up of above technical characteristics combination in any.
Claims (10)
1. a novel tensioner, it is characterized in that, described stretcher comprises bottom shell, be arranged on the spring in housing, described stretcher also comprises tension arms, central rotating shaft, central rotating shaft die casting in the housing, become to be integrated with housing, described tension arms center is provided with center hole, self-lubricating bearing is equipped with in center hole, self-lubricating bearing coordinates with tension arms and is pressed in tension arms center hole by self-lubricating bearing, the centre of described housing and tension arms is provided with nylon tapered sleeve, described stretcher also comprises skin belt pulley, bearing, bolt and dust cover, dust cover and bearing are tightened on tension arms by described bolt.
2. novel tensioner according to claim 1, is characterized in that: described spring is made up of plane on spring body, spring and spring lower plane.
3. novel tensioner according to claim 2, it is characterized in that: described housing bottom is provided with housing spiral chute, tension arms spiral spin slot is provided with bottom described tension arms, described spring lower plane connects housing bottom housing spiral chute, on described spring, plane connects tension arms spiral chute, makes tension arms and housing produce pulling force by spring.
4. the novel tensioner according to Claims 2 or 3 or 4, it is characterized in that: the bottom of described housing is provided with housing groove, described nylon tapered sleeve is provided with nylon tapered sleeve boss, and described nylon tapered sleeve boss sticks in housing groove, and it is an entirety that nylon tapered sleeve is connected with housing.
5. novel tensioner according to claim 4, it is characterized in that: described housing is provided with housing tapering, tension arms is provided with tension arms tapering, nylon tapered sleeve is provided with between described housing tapering and tension arms tapering, make tension arms around housing into rotation, being rubbed by tension arms tapering and nylon tapered sleeve male cone (strobilus masculinus) forms damping.
6. novel tensioner according to claim 5, is characterized in that, described self-lubricating bearing compresses the upper end of tension arms center hole, and described central rotating shaft and self-lubricating bearing are slidably connected.
7. the novel tensioner according to claim 5 or 6, is characterized in that: described stretcher also comprises elastic cylindrical pin, and housing is also provided with elastic cylinder cotter way, is pressed into by elastic cylindrical pin in elastic cylinder cotter way, plays positioning action.
8. novel tensioner according to claim 7, it is characterized in that: described stretcher comprises nylon dust cover, described nylon jacket is provided with nylon snap ring, described central rotating shaft is provided with central rotating shaft draw-in groove, described nylon snap ring and central rotating shaft draw-in groove carry out card and join, that plays fixing nylon dust cover does use, and described nylon dust cover snaps in the central rotating shaft draw-in groove of central rotating shaft upper-end surface.
9. novel tensioner according to claim 4, is characterized in that: the cylindrical of described nylon tapered sleeve is evenly coated with lubricating grease.
10. novel tensioner according to claim 4, is characterized in that: the angle of described housing tapering is 9.5-10.5 °, and described tension arms tapering is 9.5-10.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410544226.8A CN104358844A (en) | 2014-10-15 | 2014-10-15 | Novel tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410544226.8A CN104358844A (en) | 2014-10-15 | 2014-10-15 | Novel tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104358844A true CN104358844A (en) | 2015-02-18 |
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ID=52526138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410544226.8A Pending CN104358844A (en) | 2014-10-15 | 2014-10-15 | Novel tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104358844A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278340A (en) * | 2017-04-25 | 2018-07-13 | 江苏爱尔特实业有限公司 | Stretcher is advised when a kind of frictional unidirectional high-damping |
| CN108443440A (en) * | 2018-04-24 | 2018-08-24 | 联禾厚普（太仓）精密机械有限公司 | A kind of tensioning control piece shell |
-
2014
- 2014-10-15 CN CN201410544226.8A patent/CN104358844A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278340A (en) * | 2017-04-25 | 2018-07-13 | 江苏爱尔特实业有限公司 | Stretcher is advised when a kind of frictional unidirectional high-damping |
| WO2018196512A1 (en) * | 2017-04-25 | 2018-11-01 | 江苏爱尔特实业有限公司 | Friction type one-way timing tensioner providing high damping |
| CN108443440A (en) * | 2018-04-24 | 2018-08-24 | 联禾厚普（太仓）精密机械有限公司 | A kind of tensioning control piece shell |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150218 |
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| RJ01 | Rejection of invention patent application after publication |