CN113027991A - Ultra-small pair rolling radius Hy-Vo toothed chain - Google Patents
Ultra-small pair rolling radius Hy-Vo toothed chain Download PDFInfo
- Publication number
- CN113027991A CN113027991A CN202110322749.8A CN202110322749A CN113027991A CN 113027991 A CN113027991 A CN 113027991A CN 202110322749 A CN202110322749 A CN 202110322749A CN 113027991 A CN113027991 A CN 113027991A
- Authority
- CN
- China
- Prior art keywords
- hole
- chain plate
- chain
- connecting unit
- pair
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/04—Toothed chains
-
- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a tooth-shaped chain with an ultra-small pair rolling radius Hy-Vo, which consists of a plurality of connecting units, wherein each connecting unit consists of a chain plate and two pair rolling round pins, the left side and the right side of each chain plate are respectively provided with two chain plate holes which are symmetrical about a symmetry axis in the vertical direction of the chain plate, each chain plate hole comprises a chain plate hole outer hole and a chain plate hole inner hole which are communicated, and when the connecting units are connected with each other, the pair rolling round pins positioned on the right (left) side of the adjacent connecting unit on the left (right) side penetrate into the chain plate hole inner holes on the left (right) side of the middle connecting unit and are simultaneously tangent to the pair rolling round pins positioned in the chain plate hole outer holes on the left (right) side of the middle connecting. When the adjacent connecting units rotate relatively, the equivalent pitch of the middle connecting unit is increased along with the increase of the relative rotation angle between the middle connecting unit and the adjacent connecting unit, so that the polygonal effect of the chain transmission system is reduced to the maximum extent, and meanwhile, the special-shaped pin shaft is replaced by the pair of round pins, so that the manufacturing and assembling requirements are reduced, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of mechanical chain transmission, in particular to an ultra-small pair rolling radius Hy-Vo toothed chain.
Background
The Hy-Vo toothed chain is a high-end toothed chain product with variable pitch characteristics, and the pitch of the Hy-Vo toothed chain can show periodic change along with the increase of the angle of a meshed chain wheel by adopting the roll pin shafts, so that the polygonal effect of a transmission system is further reduced. Compared with a common toothed chain, the Hy-Vo toothed chain has a series of advantages of smaller meshing impact, smaller noise, higher transmission stability and the like, and further has a potential tendency of replacing the common toothed chain in the high-end transmission field.
According to the shape type of the chain plate hole, the Hy-Vo toothed chain can be roughly divided into: long kidney-shaped hole Hy-Vo toothed chain, heart-shaped hole Hy-Vo toothed chain, diamond-shaped hole Hy-Vo toothed chain, circular hole Hy-Vo toothed chain and the like.
Ideally, the polygon effect of the drive train is minimized if the equivalent pitch of the individual link plates of the toothed chain can be increased strictly with increasing meshing sprocket angle. However, for all existing types of Hy-Vo toothed chains, when the chain meshes with the involute sprocket, the equivalent pitch increases with increasing meshing angle, and when the meshing angle exceeds a certain range, the equivalent pitch decreases with increasing meshing angle. Due to the characteristic, the existing Hy-Vo toothed chain cannot reduce the polygonal effect of a transmission system to the maximum extent, and even under certain working conditions, the transmission performance of the existing Hy-Vo toothed chain is weaker than that of a common toothed chain, so that the large-scale application of the Hy-Vo toothed chain is limited.
On the other hand, the rolling pin shafts adopted by the existing Hy-Vo toothed chain are special-shaped pin shafts, and the special-shaped pin shafts comprise: the manufacturing cost of the Hy-Vo toothed chain is very high, and the application and popularization of the Hy-Vo toothed chain are further hindered.
The traditional Chinese patent CN201210189522.1 is also a technical means capable of reducing the polygon effect of the system, and the CN201210189522.1 relates to a double-sub chain transmission system of a double-clutch automatic gearbox, which reduces the polygon effect by staggering two hanging chains by half pitch angle, and does not solve the problem that the requirement of the equivalent pitch and the variable pitch of a Hy-Vo toothed chain is not matched from the design of a chain plate. In addition, the traditional Chinese patent CN201220604212.7 relates to a variable-pitch rolling pin type toothed chain for a transfer case of a gasoline engine, which reduces system fluctuation by improving and correcting a special-shaped pin shaft and a long-waist-shaped chain plate hole thereof, does not fundamentally solve the problem of strict correlation between an equivalent pitch and a meshing sprocket angle, and also does not solve the problems of high processing and manufacturing difficulty and high cost of the special-shaped pin shaft.
Disclosure of Invention
The invention provides an ultra-small pair rolling radius Hy-Vo toothed chain, aiming at the problems of the non-strict positive correlation presented by the equivalent pitch of the existing Hy-Vo toothed chain and the angle of a meshing sprocket and the technical problem of a special-shaped pin shaft of the Hy-Vo toothed chain.
In order to achieve the above purpose, the invention provides the following technical scheme:
a tooth-shaped chain with an ultra-small pair rolling radius Hy-Vo is composed of a plurality of connecting units, wherein each connecting unit is composed of a chain plate and two pair rounding pins, the left side and the right side of each chain plate are respectively provided with two chain plate holes, the two chain plate holes are symmetrical about a symmetrical axis of the chain plate in the vertical direction, and each chain plate hole comprises a chain plate hole outer hole and a chain plate hole inner hole which are communicated with each other; when the connecting units are assembled, the cylindrical surfaces of the two paired rounding pins are contacted with the edges of the outer sides of the outer holes of the chain plate holes, and when different connecting units are connected with each other, the right positioning paired rounding pins of the adjacent connecting unit on the left side penetrate into the inner holes of the chain plate holes on the left side of the middle connecting unit and are tangent to the paired rounding pins positioned in the outer holes of the chain plate holes on the left side of the middle connecting unit; the left positioning pair rounding pin of the adjacent connecting unit on the right penetrates into the right chain plate hole of the middle connecting unit, and is tangent to the pair rounding pin positioned in the outer hole of the right chain plate hole of the middle connecting unit, and when relative rotation occurs between the connecting units, the equivalent pitch of the middle connecting unit is increased along with the increase of the relative rotation angle between the middle connecting unit and the adjacent connecting unit.
Furthermore, the projection of the outer hole of the chain plate hole on the working surface is an arc, and the circle center of the arc is located below the chain plate pitch line.
Further, the inner hole of the chain plate hole is a track envelope line of a circle tangent to a circle where the outer hole of the chain plate hole is located on the working plane.
Furthermore, the enveloping radius of the inner hole of the chain plate hole is larger than or equal to the radius of the round pin.
Furthermore, the radius of the pair of round pins is the same as the radius of the arc of the outer hole of the chain plate hole.
Further, the fit between the outer hole of the chain plate hole and the cylindrical surface of the round pin is interference fit, excessive fit or clearance fit.
Compared with the prior art, the invention has the beneficial effects that:
the equivalent pitch of each chain plate of the ultra-small pair rolling radius Hy-Vo toothed chain strictly increases along with the increase of the angle of a meshed chain wheel, so that the polygonal effect of a chain transmission system is reduced to the maximum extent. Meanwhile, the pair of rounding pins are adopted for the pair of rounding pins, the matching of the pair of rounding pins and the outer holes of the chain plate holes can be any one of interference fit, transition fit and clearance fit, and compared with the existing special-shaped rounding pins of all types of Hy-Vo toothed chains, the pair of rounding pins not only has low manufacturing cost, but also greatly reduces the manufacturing difficulty and the assembly requirement.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a front view of a link plate according to an embodiment of the present invention.
Fig. 2 is a perspective view of a link plate according to an embodiment of the present invention.
Fig. 3 is a front view of a connection unit according to an embodiment of the present invention.
Fig. 4 is a front view of the connection of adjacent connection units according to an embodiment of the present invention.
Fig. 5 is a front view of the connection unit according to the embodiment of the present invention when the connection unit is relatively rotated.
Fig. 6 is a schematic perspective view illustrating connection of a plurality of connection units according to an embodiment of the present invention.
FIG. 7 is a perspective view of a sprocket mesh provided by an embodiment of the present invention.
Description of reference numerals:
1. a connection unit; 2. a chain plate; 3. a sprocket hole; 4. an outer hole of the chain plate hole; 5. an inner hole of the chain plate hole; 6. and (4) rolling round pins.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-7, the ultra-small pair rolling radius Hy-Vo toothed chain provided by the invention comprises a plurality of connecting units 1, wherein each connecting unit 1 comprises a chain plate 2 and two pair rolling pins 6, the chain plate 2 is respectively provided with two chain plate holes 3 at the left side and the right side, the two chain plate holes 3 are symmetrical about a symmetrical axis of the chain plate 2 in the vertical direction, and each chain plate hole 3 comprises a chain plate hole outer hole 4 and a chain plate hole inner hole 5 which are communicated with each other; when the connecting unit 1 is assembled, the cylindrical surfaces of the two pairs of rounding pins 6 are contacted with the edge close to the outer side of the outer hole 4 of the chain plate hole; when different connecting units 1 are connected with each other, the right positioning rounding pin of the adjacent connecting unit on the left side penetrates into the hole of the chain plate on the left side of the middle connecting unit and is tangent to the centering rounding pin positioned in the hole outside the chain plate on the left side of the middle connecting unit; the left positioning pair rounding pin of the right adjacent connecting unit penetrates into the hole of the right chain plate hole of the middle connecting unit and is tangent to the pair rounding pin positioned in the outer hole of the right chain plate hole of the middle connecting unit; when the connecting units rotate relatively, the equivalent pitch of the middle connecting unit increases along with the increase of the relative rotation angle between the middle connecting unit and the adjacent connecting unit.
Specifically, the projection of the outer hole 4 of the link plate hole on the working surface is an arc, and the center of the arc is located below the link plate pitch line. The projection of the inner hole 5 of the chain plate hole on the working plane is the track envelope line of a circle tangent to the circle of the outer hole 4 of the chain plate hole.
The enveloping radius of the inner hole 5 of the chain plate hole is larger than or equal to the radius of the round pin 6. The radius of the pair of rounding pins 6 is the same as the arc radius of the outer hole 4 of the chain plate hole.
The cooperation between the chain plate hole outer hole 4 and the cylindrical surface of the round pin 6 is interference fit, excessive fit or clearance fit.
It is known that the angle at which the chain engages the sprocket is strictly positively correlated with the relative rotational angle between the link plates. The relative rotation angle and the equivalent pitch of the connecting units 1 of the ultra-small pair rolling radius Hy-Vo tooth-shaped chain are strictly positively correlated, and further the equivalent pitch of the ultra-small pair rolling radius Hy-Vo tooth-shaped chain is strictly positively correlated with the angle of a meshing sprocket. Therefore, the ultra-small pair rolling radius Hy-Vo toothed chain provided by the invention overcomes the technical problem that the equivalent pitch of all the existing Hy-Vo toothed chains and the meshing sprocket angle are not strictly and positively correlated, thereby reducing the polygon effect of the system to the maximum extent.
The equivalent pitch of each chain plate of the ultra-small pair rolling radius Hy-Vo toothed chain strictly increases along with the increase of the angle of a meshed chain wheel, so that the polygonal effect of a chain transmission system is reduced to the maximum extent. For example: for a pitch of 9.525mm, the radius of the rounding pin is 1.4mm, the center distance is 12.325mm, the distance from the rounding pin to the pitch line is 0.272mm, the number of the driving sprocket teeth is 35, the number of the driven sprocket teeth is 37, and the number of the chain plates is 90. When the engagement angles of the sprockets are respectively 0 degrees, 1 degree, 2 degrees, 3 degrees and 4 degrees, the equivalent pitches are respectively 9.525mm, 9.534mm, 9.542mm, 9.550mm and 9.556 mm. In engineering, the polygonal effect of the chain transmission system is generally measured by the fluctuation amount of the center distance, and for the ultra-small pair rolling radius Hy-Vo tooth-shaped chain transmission system, the fluctuation amount of the center distance is only 0.033 mm; and for the long kidney-shaped hole Hy-Vo toothed chain transmission system with the same specification, the central distance fluctuation amount is more than 0.200 mm. Meanwhile, the pair of rounding pins are adopted for the pair of rounding pins, the matching of the pair of rounding pins and the outer holes of the chain plate holes can be any one of interference fit, transition fit and clearance fit, and compared with the existing special-shaped rounding pins of all types of Hy-Vo toothed chains, the pair of rounding pins not only has low manufacturing cost, but also greatly reduces the manufacturing difficulty and the assembly requirement.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A tooth-shaped chain with an ultra-small pair rolling radius Hy-Vo is composed of a plurality of connecting units (1), and is characterized in that each connecting unit (1) is composed of a chain plate (2) and two pair round pins (6), the left side and the right side of each chain plate (2) are respectively provided with two chain plate holes (3), the two chain plate holes (3) are symmetrical about a symmetrical axis of the chain plate (2) in the vertical direction, and each chain plate hole (3) comprises a chain plate hole outer hole (4) and a chain plate hole inner hole (5) which are communicated with each other; when the connecting unit (1) is assembled, the cylindrical surfaces of the two pairs of rounding pins (6) are contacted with the edge of the outer side of the outer hole (4) of the chain plate hole; when different connecting units (1) are connected with each other, the right positioning round pin pair (6) of the adjacent connecting unit (1) on the left side penetrates into the inner hole (5) of the left side chain plate hole of the middle connecting unit (1) and is tangent to the round pin pair (6) positioned in the outer hole (4) of the left side chain plate hole of the middle connecting unit (1); the left positioning pair rounding pin (6) of the right adjacent connecting unit (1) penetrates into the inner hole (5) of the right side chain plate hole of the middle connecting unit (1) and is tangent to the pair rounding pin (6) positioned in the outer hole (4) of the right side chain plate hole of the middle connecting unit (1).
2. Ultra-small pair rolling radius Hy-Vo toothed chain according to claim 1, characterized in that the equivalent pitch of the intermediate link elements increases with the relative rotation angle with the adjacent link elements when relative rotation occurs between the link elements (1).
3. The ultra-small pair rolling radius Hy-Vo toothed chain according to claim 1, wherein the projection of the link plate hole outer hole (4) on the working surface is a circular arc, and the center of the circular arc is located below the link plate pitch line.
4. The ultra-small pair rolling radius Hy-Vo toothed chain according to claim 1, wherein the projection of the inner hole (5) of the link plate hole on the working plane is a trajectory envelope of a circle tangent to the circle of the outer hole (4) of the link plate hole.
5. The ultra-small pair rolling radius Hy-Vo toothed chain according to claim 1, characterized in that the enveloping radius of the inner hole (5) of the chain plate hole is greater than or equal to the radius of the pair rolling pin (6).
6. The ultra-small pair rolling radius Hy-Vo toothed chain according to claim 1, characterized in that the radius of the pair of rounding pins (6) is the same as the arc radius of the link plate hole outer hole (4).
7. The ultra-small pair rolling radius Hy-Vo toothed chain according to claim 1, wherein the fit between the link plate hole outer hole (4) and the cylindrical surface of the pair rolling pin (6) is interference fit, over fit or clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110322749.8A CN113027991B (en) | 2021-03-26 | 2021-03-26 | Ultra-small pair rolling radius Hy-Vo toothed chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110322749.8A CN113027991B (en) | 2021-03-26 | 2021-03-26 | Ultra-small pair rolling radius Hy-Vo toothed chain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113027991A true CN113027991A (en) | 2021-06-25 |
| CN113027991B CN113027991B (en) | 2022-02-08 |
Family
ID=76473996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110322749.8A Active CN113027991B (en) | 2021-03-26 | 2021-03-26 | Ultra-small pair rolling radius Hy-Vo toothed chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113027991B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1252802A (en) * | 1959-12-23 | 1961-02-03 | Sedis Transmissions Mec | Advanced transmission chain and articulation device for this chain |
| US4186617A (en) * | 1978-04-06 | 1980-02-05 | Fmc Corporation | Rocker joint roller chain |
| SU1754985A1 (en) * | 1990-06-12 | 1992-08-15 | С.В. Баранов | Leaf chain |
| DE4201208A1 (en) * | 1992-01-18 | 1993-07-22 | Ieg Ind Engineering Gmbh | Toothed chain with internal guides - has pairs of needle rollers for articulated coupling of toothed plates |
| CN102691761A (en) * | 2012-06-11 | 2012-09-26 | 吉林大学 | Double-sub-chain transmission system of double-clutch automatic gearbox |
| CN202690882U (en) * | 2012-05-18 | 2013-01-23 | 青岛征和工业有限公司 | Pitch-changing tooth-shaped chain of external gearing mechanism |
| CN202926954U (en) * | 2012-11-16 | 2013-05-08 | 杭州顺峰链业有限公司 | Variable pitch roll pin type tooth-shaped chain for gasoline engine transfer case |
| CN103557270A (en) * | 2013-11-13 | 2014-02-05 | 金雁冰 | Tooth-shaped chain |
| RU2544463C1 (en) * | 2014-03-05 | 2015-03-20 | Артём Станиславович Усов | Chain with open joints |
-
2021
- 2021-03-26 CN CN202110322749.8A patent/CN113027991B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1252802A (en) * | 1959-12-23 | 1961-02-03 | Sedis Transmissions Mec | Advanced transmission chain and articulation device for this chain |
| US4186617A (en) * | 1978-04-06 | 1980-02-05 | Fmc Corporation | Rocker joint roller chain |
| SU1754985A1 (en) * | 1990-06-12 | 1992-08-15 | С.В. Баранов | Leaf chain |
| DE4201208A1 (en) * | 1992-01-18 | 1993-07-22 | Ieg Ind Engineering Gmbh | Toothed chain with internal guides - has pairs of needle rollers for articulated coupling of toothed plates |
| CN202690882U (en) * | 2012-05-18 | 2013-01-23 | 青岛征和工业有限公司 | Pitch-changing tooth-shaped chain of external gearing mechanism |
| CN102691761A (en) * | 2012-06-11 | 2012-09-26 | 吉林大学 | Double-sub-chain transmission system of double-clutch automatic gearbox |
| CN202926954U (en) * | 2012-11-16 | 2013-05-08 | 杭州顺峰链业有限公司 | Variable pitch roll pin type tooth-shaped chain for gasoline engine transfer case |
| CN103557270A (en) * | 2013-11-13 | 2014-02-05 | 金雁冰 | Tooth-shaped chain |
| RU2544463C1 (en) * | 2014-03-05 | 2015-03-20 | Артём Станиславович Усов | Chain with open joints |
Non-Patent Citations (1)
| Title |
|---|
| 孟繁忠等: "基于心形孔的Hy-Vo齿形链的啮合分析及其设计方法", 《机械工程学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113027991B (en) | 2022-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9581229B2 (en) | Sprocket | |
| US20150226308A1 (en) | Sprocket | |
| CN101360930B (en) | Chain transmission | |
| US20090209380A1 (en) | Sprocket for chain | |
| US8672786B2 (en) | Inverted tooth chain and sprocket drive system with reduced meshing impact | |
| EP1685334A1 (en) | An articulated chain for drive transmission in bicycles | |
| CN113027991B (en) | Ultra-small pair rolling radius Hy-Vo toothed chain | |
| CN101334089B (en) | Silent chain with asymmetric involute profile | |
| US9377082B2 (en) | Inverted tooth chain and sprocket drive system with reduced meshing impact | |
| US9574650B2 (en) | Compact differential gear mechanism having a densely packed pinion bevel gear array | |
| US9709130B2 (en) | Inverted tooth chain having inner flank engagement | |
| US11339863B2 (en) | Flexible gear wheel and gear mechanism with such a flexible gear wheel | |
| US6413180B1 (en) | Power transmitting mechanism with silent chain and sprockets | |
| US9482333B2 (en) | Sprocket assembly including teeth having an enlarged profile | |
| CN202579849U (en) | Novel roll pin type toothed chain transmission system | |
| CN207421245U (en) | A kind of complex phase chain drive system of single helical teeth | |
| CN109990046B (en) | Combined elastic chain plate and rotary tooth type toothed chain thereof | |
| CN209925517U (en) | Combined elastic chain plate and rotary tooth type tooth-shaped chain thereof | |
| US20150159732A1 (en) | Drive system with a drive chain guided over a sprocket | |
| US4434682A (en) | Planetary gear | |
| CN204729556U (en) | A kind of modified model balance speed reducer | |
| CN111120586B (en) | Closed undercut cycloid oscillating tooth reduction gear of doublestage | |
| CN203202126U (en) | Novel Hy-Vo tooth-shaped chain system for power transmission | |
| CN109625776B (en) | Chain, sprocket system and conveying system | |
| CN104061292B (en) | A kind of new spatial Tooth Profile catenary system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |