CN202867707U - Variable-pitch and tooth form chain drive guide vane - Google Patents
Variable-pitch and tooth form chain drive guide vane Download PDFInfo
- Publication number
- CN202867707U CN202867707U CN 201220241196 CN201220241196U CN202867707U CN 202867707 U CN202867707 U CN 202867707U CN 201220241196 CN201220241196 CN 201220241196 CN 201220241196 U CN201220241196 U CN 201220241196U CN 202867707 U CN202867707 U CN 202867707U
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- guide card
- guide vane
- hole
- pitches
- silent chain
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Abstract
The utility model discloses a pitch-variable silent chain drive guide vane. A variable-pitch and tooth form chain comprises working chain plates, the guide vane and rolling pins, wherein guide vane holes and matching pairs for matching the guide vane holes and rolling pins are formed in the guide vane; the working chain plates are connected with the guide vane through the rolling pins; a plurality of oval through holes are formed in the guide vane and are respectively arranged at four corners and in the center of the guide vane; and the oval through holes at four corners have the same size and are symmetrically distributed using a central line of the guide vane as the reference. On the premise that the strength condition is satisfied, the guide vane has the characteristics of light weight and compact structure; and the elastic elongation of the guide vane is increased. Therefore the elastic elongation is achieved better, and the stress of various working chain boards are more uniform; and the guide vane is suitable for batch production.
Description
Technical field
The utility model belongs to toothed chain transmission device, is specifically related to a kind of transmission guide card with pitches silent chain of outer gearing mechanism, is specially adapted to generator set and motorcar engine, speed changer and transfer case to chain driven high-speed degree, high-precision requirement.
Background technique
Silent chain is widely used at a high speed, the silent chain transmission of high-precision requirement, and at present, the work carrier bar of the various silent chains that use on the machinery and guide card mostly adopt sheet metal to form through punch process.For guaranteeing the intensity of Transmitted chains, particularly guarantee the fastness of guide card and bearing pin interference fit, used sheet metal will have certain thickness, cause the weight of chain larger, cause operating shock and vibration and noise serious, energy loss is surprising, has reduced Economy and the reliability of chain work.
Usually the difference of silent chain push-piece shape shaft is divided into two large classes: round pin formula silent chain and pitches silent chain, pitches silent chain are also named and roll pin formula silent chain, are the outer gearing mechanism silent chains of pitches.The silent chain guide card is only rolled erection stress and the action of pulling stress of pin when work, do not participate in engagement driving.But under the prerequisite of proof strength, require guide card need have certain spring function, to improve the uniformity of the carrier bar carrying of respectively working.Existing patent Pat.200320110152.4 makes a variation to the structure of toothed chain guide card, forms chamfering by the side at guide card with the lower end surface, meshes smooth and easy problem to solve, but what relate to is round pin formula silent chain.
Summary of the invention
The problems referred to above that exist in order to overcome the prior art field, the purpose of this utility model is, a kind of pitches silent chain transmission guide card is provided, and solves existing pitches silent chain weight heavier, the problem such as cause the impact of transmission large, noise is serious and energy consumption is large.
The pitches silent chain transmission guide card that the utility model provides, the pitches silent chain comprises work carrier bar, guide card, rolls pin, guide card is provided with guide card hole, guide card hole and rolls pin the matching pair that cooperates, and the work carrier bar is connected with guide card by rolling pin, and described guide card is provided with several through holes.Described through hole is ellipse, and ellipse hole is separately positioned on four edges of guide card, guide card center, and the ellipse hole size of four corners is identical, and the symmetrical setting take the guide card center line as benchmark.2/3 of the height of described guide card 〉=working chain plate height.Described guide card is the curved strip in the left and right sides, and the cross central line of the relative guide card in top and bottom of guide card is symmetrical, and the left end of guide card is symmetrical with the vertical center line of the relative guide card of right-hand member.The ellipse hole of four edges of described guide card, 30 ° of the major semi axis of through hole and guide card substantially horizontal angles, and the ratio of major semi axis and semi-minor axis is 2: 1.The ellipse hole at described guide card symmetry center place, the major semi axis of through hole is consistent with the center line of guide card substantially horizontal, and the ratio of major semi axis and semi-minor axis is 2: 1.
The pitches silent chain transmission guide card that the utility model provides, its beneficial effect is, this guide card is satisfying under the prerequisite of strength condition, have lightweight, the characteristics of compact structure have increased the elastic elongation amount of guide card, realize better its spring function, make the carrier bar of respectively working stressed more even, be fit to batch production.
Description of drawings
Fig. 1 is the utility model embodiment's overall structure schematic diagram.
Mark among the figure:
1. guide card; 2. guide card hole; 3. matching pair; 4. through hole; 5. through hole.
Embodiment
With reference to the accompanying drawings, in conjunction with the embodiments, the pitches silent chain transmission guide card to the utility model provides is described in detail.
Embodiment
With reference to Fig. 1, the pitches silent chain transmission guide card of the present embodiment, the pitches silent chain comprises work carrier bar, guide card 1, rolls pin, and guide card 1 is provided with guide card hole 2, guide card hole 2 and rolls the matching pair 3 that pin cooperates, the work carrier bar is connected with guide card 1 by rolling pin, and described guide card 1 is provided with several through holes.Described through hole is ellipse, and ellipse hole is separately positioned on 1 four edges of guide card, guide card 1 center, and the ellipse hole size of four corners is identical, and take guide card 1 center line as the symmetrical setting of benchmark.2/3 of the height of described guide card 1 〉=working chain plate height.Described guide card 1 is the curved strip in the left and right sides, and the cross central line of the relative guide card 1 in the top and bottom of guide card 1 is symmetrical, and the vertical center line of the left end of guide card 1 guide card 1 relative to right-hand member is symmetrical.The ellipse hole 4 of 1 four edges of described guide card, 30 ° of the major semi axis of through hole 4 and guide card 1 substantially horizontal angles, and the ratio of major semi axis and semi-minor axis is 2: 1.The ellipse hole 5 at described guide card 1 symmetry center place, the major semi axis of through hole 5 is consistent with the center line of guide card 1 substantially horizontal, and the ratio of major semi axis and semi-minor axis is 2: 1.
Structure, operating conditions and job requirement according to Chain With Varying Pitch tradition guide card, its working stress has been carried out finite element analysis, its working stress feature is that material bears larger stress in the border circular areas centered by the guide card hole, the stress of other region material is less, especially lower half portion far away apart from the guide card hole is not almost born load.According to this analysis, the pitches silent chain transmission guide card that this model utility provides, rationally remove the less material of guide card 1 Lower Half stress, make the cross central line symmetry of the relative guide card 1 in top and bottom of guide card 1, the vertical center line of the left end of guide card 1 guide card 1 relative to right-hand member is symmetrical; And the height of guide card 1 is not less than 2/3rds of traditional guide card height after guarantee improving, namely 2/3rds of the working chain plate height; The ellipse hole 4 of 1 four edges of guide card, 30 ° of the major semi axis of through hole 4 and guide card 1 substantially horizontal angles, and the ratio of major semi axis and semi-minor axis is 2: 1; The ellipse hole 5 at guide card 1 symmetry center place, the major semi axis of through hole 5 is consistent with the center line of guide card 1 substantially horizontal, and the ratio of major semi axis and semi-minor axis is 2: 1.Working stress to the guide card 1 that obtains after the variation is carried out finite element analysis, and maximum working stress does not almost change.Not only the more traditional guide card of weight 1 is light, and effective working depth of guide card 1 gets to a certain extent and reduce, and the elastic elongation amount will increase, and can realize better its spring function, makes the carrier bar of respectively working stressed more even.
Claims (6)
1. pitches silent chain transmission guide card, the pitches silent chain comprises work carrier bar, guide card, rolls pin, guide card is provided with guide card hole, guide card hole and rolls pin the matching pair that cooperates, and the work carrier bar is connected with guide card by rolling pin, and it is characterized in that: described guide card is provided with several through holes.
2. pitches silent chain transmission guide card according to claim 1, it is characterized in that: described through hole is ellipse, ellipse hole is separately positioned on four edges of guide card, guide card center, the ellipse hole size of four corners is identical, and the symmetrical setting take the guide card center line as benchmark.
3. pitches silent chain transmission guide card according to claim 1 is characterized in that: 2/3 of the height of described guide card 〉=working chain plate height.
4. according to claim 1 or 3 described pitches silent chain transmission guide cards, it is characterized in that: described guide card is the curved strip in the left and right sides, the cross central line of the relative guide card in top and bottom of guide card is symmetrical, and the left end of guide card is symmetrical with the vertical center line of the relative guide card of right-hand member.
5. pitches silent chain transmission guide card according to claim 2 is characterized in that: the ellipse hole of four edges of described guide card, and 30 ° of the major semi axis of through hole and guide card substantially horizontal angles, and the ratio of major semi axis and semi-minor axis is 2: 1.
6. pitches silent chain transmission guide card according to claim 2, it is characterized in that: the ellipse hole at described guide card symmetry center place, the major semi axis of through hole is consistent with the center line of guide card substantially horizontal, and the ratio of major semi axis and semi-minor axis is 2: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241196 CN202867707U (en) | 2012-05-18 | 2012-05-18 | Variable-pitch and tooth form chain drive guide vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241196 CN202867707U (en) | 2012-05-18 | 2012-05-18 | Variable-pitch and tooth form chain drive guide vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867707U true CN202867707U (en) | 2013-04-10 |
Family
ID=48034429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220241196 Expired - Fee Related CN202867707U (en) | 2012-05-18 | 2012-05-18 | Variable-pitch and tooth form chain drive guide vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867707U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108045843A (en) * | 2017-12-22 | 2018-05-18 | 德清广汇金属材料有限公司 | Auto production line special chain-plate |
| GB2621418A (en) * | 2022-08-10 | 2024-02-14 | Pennine Industrial Equipment Ltd | Link for a Multi-Link Conveyor Chain |
| GB2621365A (en) * | 2022-08-10 | 2024-02-14 | Pennine Industrial Equipment Ltd | Link for a Multi-Link Conveyor Chain |
| GB2621420A (en) * | 2022-08-10 | 2024-02-14 | Pennine Industrial Equipment Ltd | Link for a multi-link conveyor chain |
-
2012
- 2012-05-18 CN CN 201220241196 patent/CN202867707U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108045843A (en) * | 2017-12-22 | 2018-05-18 | 德清广汇金属材料有限公司 | Auto production line special chain-plate |
| GB2621418A (en) * | 2022-08-10 | 2024-02-14 | Pennine Industrial Equipment Ltd | Link for a Multi-Link Conveyor Chain |
| GB2621365A (en) * | 2022-08-10 | 2024-02-14 | Pennine Industrial Equipment Ltd | Link for a Multi-Link Conveyor Chain |
| GB2621420A (en) * | 2022-08-10 | 2024-02-14 | Pennine Industrial Equipment Ltd | Link for a multi-link conveyor chain |
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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: 266700, 112, Hongkong Road, Qingdao overseas Chinese science and Technology Park, Pingdu City, Shandong Province Patentee after: Qingdao Choho Industrial Co., Ltd. Address before: 266700, 112, Hongkong Road, Qingdao overseas Chinese science and Technology Park, Pingdu City, Shandong Province Patentee before: Qingdao Choho Industrial Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20150518 |
|
| EXPY | Termination of patent right or utility model |