CN2931937Y - Tension device of motorbicycle engine chain - Google Patents
Tension device of motorbicycle engine chain Download PDFInfo
- Publication number
- CN2931937Y CN2931937Y CN 200620044361 CN200620044361U CN2931937Y CN 2931937 Y CN2931937 Y CN 2931937Y CN 200620044361 CN200620044361 CN 200620044361 CN 200620044361 U CN200620044361 U CN 200620044361U CN 2931937 Y CN2931937 Y CN 2931937Y
- Authority
- CN
- China
- Prior art keywords
- shell
- ring
- screw rod
- swivel nut
- chain
- 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)
Abstract
The utility model relates to a belt tension device, especially a motorcycle engine chain belt tensioner, which solves the problem of the prior art being noisy and vulnerable for the relative parts. The utility model comprises a belt tensioner shell with vacuum, wherein the shell is provided with a screw, the screw is connected with a threaded sleeve on the screw thread, the threaded sleeve extends out of the shell and is fixed relative to the circumferential direction of the shell, the screw is provided with a clockwork spring between the shell, the screw is socket jointed with a ring-shaped check ring and the check ring is fixed between the clockwork spring and the threaded sleeve, a support spring is fixed between the check ring and the shell and two ends of the support spring respectively work on the check ring and the shell. The utility model is low in noise, long in service life and low in manufacture cost.
Description
Technical field
The utility model relates to a kind of belt tensioner, relates in particular to a kind of tension device that is used for the chain of motorcycle engine is carried out tensioner.
Background technique
The power of motorcycle generally carries out transmission by belt or chain.Since motor have revolution fluctuation, chain can extend and cause lax, the reason that this is that port timing occurs is not normal, situations such as noise take place.The chain tension device can make chain keep suitable tensioner state, occurs to prevent above-mentioned situation.
A kind of all-in-one-piece tension device that occurs on the existing market, its structure comprises a shell that has a cavity, is located at screw rod that is threaded togather mutually and swivel nut in the shell, swivel nut stretches out shell and circumferentially fixing with respect to shell, on screw rod, also be socketed with a clockwork spring, in order to prevent clockwork spring axially bloating along screw rod, be socketed with a back-up ring on screw rod, the outside of back-up ring also is provided with a spider cylindraceous that is socketed on the screw rod.Because its axial dimension of the processed back of spider just is fixed, when the axial dimension of spider is nonstandard, especially be made slightly hour, motorcycle is in the process of travelling, spider can and other parts between Strike note takes place, noise is bigger, and related components is fragile, and can not play good qualification effect to clockwork spring.
Summary of the invention
The purpose of this utility model is at the existing the problems referred to above of existing chain tightening arrangement for automobile engine, the chain tightening arrangement for automobile engine that provide that a kind of operating noise is little, long service life, processing are easy, can play fine tensioner effect to chain.
The purpose of this utility model can realize by following technical proposal: a kind of chain tightening arrangement for automobile engine, comprise the tension device shell that has cavity, in shell, be provided with screw rod, a swivel nut has been threaded on the screw rod, swivel nut stretches out shell and circumferentially fixing with respect to shell, between screw rod and shell, be provided with clockwork spring, it is characterized in that, be socketed with the back-up ring of a ring-type on the described screw rod, back-up ring is between clockwork spring and swivel nut, be provided with support spring between back-up ring and shell, the two ends of support spring act on respectively on back-up ring and the shell.
Back-up ring is fixed with respect to screw axial, and back-up ring can be resisted against on the boss set on the screw rod, or is resisted against on other set on screw rod fixed component, an end of support spring flexibly roof pressure on back-up ring, thereby can fix back-up ring.Under the effect of clockwork spring, screw rod keeps a kind of trend of rotation, and maintain a fixed between swivel nut and the shell, be that swivel nut can not rotate, therefore, swivel nut maintains outwardly directed trend, thereby can remedy motorcycle chain elongation in the course of the work, make chain have certain tensioner degree, to satisfy the real work demand of motorcycle.
In this chain tightening arrangement for automobile engine, the end of described shell is fixed with a block, and swivel nut passes block with gap, and maintains a fixed between the two, and a wherein end roof pressure of described support spring is on block.It is generally in the form of annular discs to block a shot, and its edge is connected on the opening end of described shell, be provided with a non-circular hole at the center of block, and the profile of swivel nut and this non-circular hole matches, between the two Spielpassung.The direct roof pressure of one end of support spring is on the inner side surface of this block.
In this chain tightening arrangement for automobile engine, the outer end of described swivel nut is provided with a clinching cap.The clinching cap generally is the outer end place that is connected swivel nut removably, but the outer end of clinching cap and roof pressure roof pressure parts on outside the chain be connected, these roof pressure parts can be rollers, also can be top pressing boards.
Compared with prior art, the beneficial effects of the utility model are:
1, in this chain tightening arrangement for automobile engine, owing to replace spider cylindraceous with support spring, one end of support spring flexibly roof pressure on back-up ring, back-up ring can more stably keep axial restraint with screw rod, Strike note can not take place between back-up ring, block and the support spring, significantly reduced operating noise.
2, in this chain tightening arrangement for automobile engine, by support spring relevant part is suppressed, eliminated relative movement unnecessary between the part, thereby made part not easy to wear, prolonged the working life of product.
3, since an end of support spring flexibly roof pressure is on back-up ring, the requirement on machining accuracy of associated components is low, the production of this tension device and easy to assembly, quick, in light weight, material is saved and is cut down finished cost.
Description of drawings
Fig. 1 is the structural representation of this chain tightening arrangement for automobile engine.
Fig. 2 is the side view along Fig. 1.
Fig. 3 is the user mode reference drawing of this chain tightening arrangement for automobile engine when being assemblied on the motor.
Fig. 4 is the longitudinal section of existing chain tightening arrangement for automobile engine.
Among the figure, 1, shell; 2, clockwork spring; 3, jump ring; 4, block; 5, swivel nut; 6, clinching cap; 7, screw rod; 8, support spring; 9, back-up ring; 10, boss; 11, locking and positioning sheet; 12, center hole; 13, sprocket wheel; 14, top pressing board; 15, chain; 16, spider.
Embodiment
See shown in Figure 4ly, the structure of existing chain tightening arrangement for automobile engine comprises the shell 1 that has cavity, be located at screw rod 7 in the shell 1, be threaded in swivel nut 5 on the screw rod 7, be socketed in the clockwork spring 2 on the screw rod 7.Be provided with a boss that is connected as a single entity with it 10 on screw rod 7, described clockwork spring 2 is socketed in this boss 10, and an end of clockwork spring 2 is connected on the screw rod 7, and the other end is connected on the shell 1.Prevent that in order to limit clockwork spring 2 clockwork spring 2 along axially the bloating of screw rod 7, is socketed with a circular back-up ring 9 on screw rod 7, distolateral contacting of back-up ring 9 and boss 10.Be fixed with a discoid block 4 on the opening end of shell 1, see Fig. 2, the edge of this block 4 is provided with several convex bodys, and these convex bodys are arranged in the set breach in shell 1 end, is mutually permanently connected together by jump ring 3 between block 4 and the shell 1.Be provided with a spider 16 cylindraceous between described back-up ring 9 and block 4, spider 16 is socketed in the outside of swivel nut 5, and the two ends of spider 16 contact with back-up ring 9 and block 4 respectively.Above-mentioned swivel nut 7 stretches out the outside of shell 1, and and shell 1 between maintain a fixed, on the external part of swivel nut 7, also be provided with a clinching cap 6.Clockwork spring 2 is that the reed by sheet is coiled in together and forms, for clockwork spring 2 is operated, a side relative with described block 4 on shell 1 is provided with locking and positioning sheet 11, and this locking and positioning sheet 11 stretches out the outside of shell 1, and links with screw rod 7.
See Fig. 1, Fig. 2, the agent structure of the utility model chain tightening arrangement for automobile engine and the structural similarity of the tension device shown in Fig. 4, different is that above-mentioned spider 16 is replaced by support spring 8, the two ends of this support spring 8 respectively flexibly roof pressure on back-up ring 9 and block 4.Be provided with the center hole 12 of a non-circle at the center of block 4, the cross section of the center hole 12 shown in Fig. 2 is to be linked together by two isometric and parallel straight lines and two isometric camber lines to constitute, and the shape in above-mentioned swivel nut 5 cross sections and the sectional shape of this center hole 12 match, and both Spielpassung.
In conjunction with Fig. 1, Fig. 2, Fig. 3, after the utility model chain tightening arrangement for automobile engine is assemblied on the motorcycle, be fixed with a top pressing board 14 on the described clinching cap 6, these top pressing board 14 roof pressures are on the outside of chain 15, chain 15 is socketed on two sprocket wheels 13, and top pressing board 14 roof pressures are between two sprocket wheels 13 at the position on the chain 15.In order to increase the smoothness of sliding between chain 15 and the top pressing board 14, preferably towards the direction arc-shaped bend of this tension device, perhaps this top pressing board 14 directly is an arc at the two ends of top pressing board 14, and the outer arced surface of curved top pressing board 14 and the outer side surface of chain 14 are fitted.
Claims (3)
1, a kind of chain tightening arrangement for automobile engine, comprise the tension device shell (1) that has cavity, in shell (1), be provided with screw rod (7), a swivel nut (5) has been threaded on the screw rod (7), swivel nut (5) stretches out shell (1) and circumferentially fixing with respect to shell (1), between screw rod (7) and shell (1), be provided with clockwork spring (2), it is characterized in that, be socketed with the back-up ring (9) of a ring-type on the described screw rod (7), back-up ring (9) is positioned between clockwork spring (2) and the swivel nut (5), be provided with support spring (8) between back-up ring (9) and shell (1), the two ends of support spring (8) act on respectively on back-up ring (9) and the shell (1).
2, chain tightening arrangement for automobile engine according to claim 1, it is characterized in that, the end of described shell (1) is fixed with a block (4), swivel nut (5) passes block (4) with gap, and maintain a fixed between the two, a wherein end roof pressure of described support spring (8) is on block (4).
3, chain tightening arrangement for automobile engine according to claim 1 and 2 is characterized in that, the outer end of described swivel nut (5) is provided with a clinching cap (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044361 CN2931937Y (en) | 2006-07-28 | 2006-07-28 | Tension device of motorbicycle engine chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044361 CN2931937Y (en) | 2006-07-28 | 2006-07-28 | Tension device of motorbicycle engine chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2931937Y true CN2931937Y (en) | 2007-08-08 |
Family
ID=38348436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620044361 Expired - Lifetime CN2931937Y (en) | 2006-07-28 | 2006-07-28 | Tension device of motorbicycle engine chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2931937Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122321B (en) * | 2007-09-06 | 2012-02-08 | 玉环中本机械有限公司 | Chain tightening arrangement for automobile engine |
| CN109455001A (en) * | 2017-09-06 | 2019-03-12 | 沈阳飞图喷印设备有限公司 | It improves the method for the two-sided aligning accuracy of synchronous double-side air brushing and implements the device of this method |
| CN109794765A (en) * | 2018-12-10 | 2019-05-24 | 浙江大学台州研究院 | Motorcycle spring tensioner automatic assembly and testing production line |
-
2006
- 2006-07-28 CN CN 200620044361 patent/CN2931937Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122321B (en) * | 2007-09-06 | 2012-02-08 | 玉环中本机械有限公司 | Chain tightening arrangement for automobile engine |
| CN109455001A (en) * | 2017-09-06 | 2019-03-12 | 沈阳飞图喷印设备有限公司 | It improves the method for the two-sided aligning accuracy of synchronous double-side air brushing and implements the device of this method |
| CN109794765A (en) * | 2018-12-10 | 2019-05-24 | 浙江大学台州研究院 | Motorcycle spring tensioner automatic assembly and testing production line |
| CN109794765B (en) * | 2018-12-10 | 2020-10-30 | 浙江大学台州研究院 | Automatic assembling and detecting production line for spring type tensioner of motorcycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YUHUAN ZHONGBEN MACHINERY CO., LTD. Free format text: FORMER OWNER: GAO XI Effective date: 20090925 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090925 Address after: Zhujiang Road, Zhejiang, Kanmen, Haicheng Road, Yuhuan County Province, China: 317602 Patentee after: YUHUAN ZHONGBEN MACHINERY CO., LTD. Address before: Yuhuan County Zhujiang Road, Kanmen, Haicheng Road, Yuhuan China Zhejiang Machinery Co., Ltd., postcode: 317602 Patentee before: Gao Xi |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070808 |
|
| EXPY | Termination of patent right or utility model |