CN109990046B - Combined elastic chain plate and rotary tooth type toothed chain thereof - Google Patents
Combined elastic chain plate and rotary tooth type toothed chain thereof Download PDFInfo
- Publication number
- CN109990046B CN109990046B CN201910302394.9A CN201910302394A CN109990046B CN 109990046 B CN109990046 B CN 109990046B CN 201910302394 A CN201910302394 A CN 201910302394A CN 109990046 B CN109990046 B CN 109990046B
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- China
- Prior art keywords
- plate
- chain
- pin
- connecting plate
- toothed
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- 230000005540 biological transmission Effects 0.000 abstract description 14
- 238000009825 accumulation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009191 jumping Effects 0.000 description 4
- 239000000470 constituent Substances 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F16G13/07—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links the links being of identical shape, e.g. cranked
Landscapes
- 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 combined elastic chain plate and a tooth-shaped toothed chain thereof. The invention mainly solves the technical problems that the tooth jump phenomenon and the damage of a transmission system are easy to cause in the existing toothed chain of the integral rigid chain plate. The technical scheme of the invention is as follows: the combined elastic chain plate consists of a rear connecting plate, a front connecting plate, a left toothed plate, a right toothed plate, a plurality of left needle pins, a plurality of right needle pins and a plurality of springs, wherein the left needle pins sequentially penetrate through the left half part of the rear connecting plate, the left toothed plate and the left half part of the front connecting plate to connect the left half part of the rear connecting plate to form a left tooth shape, and the right needle pins sequentially penetrate through the right half part of the rear connecting plate, the right toothed plate and the right half part of the front connecting plate to connect the right half part of the rear connecting plate to form a right tooth shape. The tooth-turning toothed chain consists of several combined elastic chain plates and pins. The elastic chain plate is used for replacing the traditional rigid chain plate, and the tooth jump caused by the accumulation of the engagement error can be avoided by releasing the engagement error in time. Thereby improving the reliability and stability of the tooth-shaped chain transmission system.
Description
Technical Field
The invention relates to a combined elastic chain plate and a tooth-shaped toothed chain thereof, which belong to the technical field of mechanical chain transmission.
Background
The toothed chain is an important mechanical transmission basic component and is widely applied to timing transmission systems of automobile engines. Compared with the common roller chain, the roller chain has the advantages of small polygonal effect, small meshing impact, long service life, no need of replacement and the like.
The common toothed chain is formed by connecting a plurality of integral rigid chain plates through pin shafts. The tooth shapes of the inner side and the outer side of the single chain plate are respectively meshed with the tooth shapes of the chain wheels, so that the polygonal effect and the meshing impact of a transmission system are reduced.
The same common roller chain is free from variation, the polygonal effect of the toothed chain is still influenced by the number of teeth of a chain wheel in a transmission system, and the more the number of teeth of the chain wheel is, the smaller the polygonal effect is, and the smaller the meshing impact of the transmission system is. However, the number of teeth of the chain wheel is increased, so that the pitch of the toothed chain plates is reduced and the number of the constituent chain plates is increased. The pitch of the toothed chain plate is reduced, so that the manufacturing difficulty of the chain plate is increased, and the processing error is increased; an increase in the number of constituent link plates results in an increase in the number of error accumulation times. Errors of each group of chain plates are overlapped in the chain transmission, and due to the increase of error accumulation times, the engagement of the chain plates and the chain wheels is gradually misplaced in the transmission, and when the errors are accumulated to a certain degree, the tooth jumping phenomenon of the toothed chain is caused. It should be noted that when the design of the toothed chain system is not reasonable, the tooth jump phenomenon of the toothed chain is also caused. The risk of tooth jump in mechanical transmissions is great, on the one hand, that it may cause breakage of the chain or damage to the sprocket teeth, and on the other hand, that it may cause damage to other components in the transmission system and even rejection of the entire host machine.
The toothed chain related to the prior Chinese patent is formed by combining integral rigid chain plates through pin shafts, when the tooth shapes of the chain plates are subjected to meshing impact, the tooth shapes of the chain plates cannot rotate relative to the chain, so that the meshing error cannot be released in time through dislocation meshing, and the occurrence of the tooth jumping phenomenon cannot be avoided.
Disclosure of Invention
The invention aims to solve the technical problems that the tooth jump phenomenon exists in the toothed chain of the existing integral rigid chain plate and the transmission system is easy to damage, and provides a combined elastic chain plate and a tooth-turning toothed chain thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
The combined elastic chain plate consists of a back connecting plate, a front connecting plate, a left toothed plate, a right toothed plate, a plurality of left needle pins, a plurality of right needle pins and a plurality of springs, wherein the periphery of the left toothed plate and the right toothed plate are uniformly provided with a plurality of needle pin rotation position holes on the same circumference, the periphery of the chain plate holes on the left half part of the back connecting plate and the front connecting plate are uniformly provided with a plurality of left needle pin holes which correspond to the needle pin rotation position holes of the left toothed plate, the periphery of the chain plate holes on the right half part of the back connecting plate and the front connecting plate are uniformly provided with a plurality of right needle pin holes which correspond to the needle pin rotation position holes of the right toothed plate, the left needle pin sequentially penetrates through a left needle pin hole formed in the left half part of the rear connecting plate, a needle pin rotating hole formed in the left toothed plate and a left needle pin hole formed in the left half part of the front connecting plate to connect the left half part of the rear connecting plate, the left toothed plate and the left half part of the front connecting plate together to form a left tooth shape, the right needle pin sequentially penetrates through a right needle pin hole formed in the right half part of the rear connecting plate, a needle pin rotating hole formed in the right toothed plate and a right needle pin hole formed in the right half part of the front connecting plate to connect the right half part of the rear connecting plate, the right toothed plate and the right half part of the front connecting plate together to form a right tooth shape, and the springs are arranged in the needle pin rotating holes in pairs and are positioned on two sides of the left needle pin or the right needle pin.
Further, the left needle pin is tangent to the circular arc matching surface of the needle pin rotation position hole arranged on the left toothed plate, the right needle pin is tangent to the circular arc matching surface of the needle pin rotation position hole arranged on the right toothed plate, and the left needle pin and the right needle pin rotate around the chain plate hole by-15 to +15 degrees in the needle pin rotation position hole.
The rotary tooth type toothed chain is formed by combining a plurality of combined elastic chain plates and pin shafts in a staggered and clamped mode.
The beneficial effects of the invention are as follows:
1. The elastic chain plate replaces the traditional rigid chain plate, so that the meshing error can be released in time, and the tooth jump caused by the accumulation of the meshing error can be avoided. Thereby improving the reliability and stability of the tooth-shaped chain transmission system.
2. The tooth form of each chain plate can rotate around the central axis of the hole of the chain plate to a certain extent relative to the chain plate, and the rotation can play a role in buffering each engagement impact and can carry out dislocation engagement when the engagement fails, so that the phenomenon of tooth jumping caused by unreasonable design is avoided. Thereby further improving the stability and the precision of the transmission system.
3. The combined chain plate replaces the traditional integral chain plate, so that the structural property of the toothed chain plate is enhanced, and the tensile strength and the tooth-shaped abrasion resistance of the chain plate are effectively improved.
Drawings
FIG. 1 is a front semi-sectional view of the present invention;
FIG. 2 is a top half-sectional view of the present invention;
FIG. 3 is a schematic view of the assembly of the present invention;
FIG. 4 is an exploded view of the present invention;
FIG. 5 is a general assembly schematic of the present invention;
FIG. 6 is a schematic diagram of the operation of the present invention;
In the figure: the novel elastic chain plate comprises a rear connecting plate 1, a front connecting plate 2, a left toothed plate 3, a right toothed plate 4, a left pin hole 5, a chain plate hole 6, a left pin 7, a spring 8, a right pin 9, a pin rotation hole 10, a right pin hole 11, a combined elastic chain plate 12 and a pin shaft 13.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
As shown in fig. 1 to 4, a combined elastic chain plate in this embodiment is composed of a rear connecting plate 1, a front connecting plate 2, a left toothed plate 3, a right toothed plate 4, four left pin holes 7, four right pin holes 9 and a plurality of springs 8, wherein four pin rotation position holes 10 are uniformly formed in the periphery of the chain plate holes 6 on the left toothed plate 3 and the right toothed plate 4, the four pin rotation position holes are located on the same circumference, four left pin holes 5 are uniformly formed in the periphery of a chain plate hole 6 of the left half part of the rear connecting plate 1 and the front connecting plate 2, the left pin holes 5 correspond to pin rotation position holes 10 of the left toothed plate 3, four right pin holes 11 are uniformly formed in the periphery of the chain plate hole 6 of the right half part of the rear connecting plate 1 and the front connecting plate 2, the right pin holes 11 correspond to pin rotation position holes 10 of the right toothed plate 4, the left pin 7 sequentially penetrates through the left pin holes 5 arranged on the left half part of the rear connecting plate 1, the left pin holes 10 arranged on the left toothed plate 3 and the front half part of the front connecting plate 2, the left pin holes 2 are sequentially arranged in the left half part of the right toothed plate 2 and the right half part of the toothed plate 4, the left pin holes 11 are sequentially formed in the left half part of the toothed plate 2 and the front connecting plate 2 and the right half part of the toothed plate 4 are sequentially, and the left pin holes 11 are sequentially arranged in the left half part of the toothed plate 4 and the front half part of the toothed plate 4 and the toothed plate 4 is formed by connecting the left pin holes and the right pin holes are sequentially.
Further, the left needle pin 7 is tangent to the circular arc matching surface of the needle pin rotation position hole 10 formed in the left toothed plate 3, the right needle pin 9 is tangent to the circular arc matching surface of the needle pin rotation position hole 10 formed in the right toothed plate 4, and the left needle pin 7 and the right needle pin 9 rotate around the link plate hole 6 by-15 to +15 degrees in the needle pin rotation position hole 10.
As shown in fig. 5, the rotary tooth-shaped chain made of the combined elastic chain plate consists of a plurality of combined elastic chain plates 12 and pin shafts 13, wherein the combined elastic chain plates 12 are combined together in a staggered and clamped mode through the pin shafts 13 to form the rotary tooth-shaped chain.
The number of the left needle pin holes 5, the needle pin rotating holes 10 and the right needle pin holes 11 can be odd or even.
When the tooth shape of the combined elastic chain plate is not impacted, the axes of the left needle pin 7 and the right needle pin 9 are positioned on the symmetrical plane of the needle pin rotation hole 10, and the compression degree of the pair of springs 8 in the needle pin rotation hole 10 is consistent.
When the tooth shape of the elastic chain plate is impacted, the left toothed plate 3 and the right toothed plate 4 can rotate in the same direction with the impact direction by taking the central axis of the chain plate hole 6 as the rotation center, and the spring 8 can absorb impact energy to a certain extent. When the impact on the tooth form of the combined elastic link plate disappears, the impact energy absorbed by the spring 8 is released, so that the left tooth plate 3 and the right tooth plate 4 of the elastic link plate are restored to the original positions.
The pair of springs 8 participate in the cooperation of the single pin and the single pin rotation hole, and when the pair of springs in the pin rotation hole are symmetrical about the plane in which the pin axis and the link plate hole axis are located, the pin axis is located on the symmetry plane of the pin rotation hole, so that the connecting plate and the toothed plate of the combined elastic link plate are relatively fixed when not engaged, and the toothed plate profile can rotate clockwise or anticlockwise relative to the connecting plate about the link plate hole axis by a certain angle when being impacted by engagement. The cooperation ensures that the tooth shape of the chain is fixed during normal meshing (the tooth shape angle of the chain plate is a design value), and the meshing error is released and the meshing impact is relieved by changing the tooth shape angle when abnormal meshing or meshing impact occurs. In the running process, the tooth shape of the chain can adjust the tooth shape angle and release the meshing error in time according to the matching degree, the relative rotating speed and the meshing impact degree of the chain and the chain wheel in the system, thereby avoiding the occurrence of the tooth jumping phenomenon in the tooth-shaped chain transmission system.
The working principle of the invention is as follows:
as shown in fig. 6, taking the case that the left side of the elastic link plate receives the engagement impact, the left toothed plate 3 rotates counterclockwise by a certain angle relative to the combined elastic link plate 12 with the axis of the link plate hole as the center, and the other directions receive the impact, so as to achieve the purposes of alleviating the impact and releasing the engagement error.
Claims (3)
1. A combination type elastic chain plate, which is characterized in that: the left-hand and right-hand pin assembly comprises a rear connecting plate (1), a front connecting plate (2), a left toothed plate (3), a right toothed plate (4), a plurality of left-hand pin (7), a plurality of right-hand pin (9) and a plurality of springs (8), wherein a plurality of pin rotation holes (10) are uniformly formed in the periphery of the chain plate holes (6) on the left toothed plate (3) and the right toothed plate (4), the pin rotation holes are formed in the same circumference, a plurality of left pin holes (5) are uniformly formed in the periphery of the chain plate holes (6) on the left half part of the rear connecting plate (1) and the front connecting plate (2), the left pin holes (5) are corresponding to the pin rotation holes (10) on the left toothed plate (3), a plurality of right pin holes (11) are uniformly formed in the periphery of the chain plate holes (6) on the right half part of the rear connecting plate (1) and the front connecting plate (2), the left pin holes (5) are sequentially formed in the left half part of the rear connecting plate (1) and the front connecting plate (2), the left pin holes (5) are sequentially arranged on the left half part of the front connecting plate (2) and the left toothed plate (2), the right needle pin (9) sequentially penetrates through a right needle pin hole (11) formed in the right half part of the rear connecting plate (1), a needle pin rotating position hole (10) formed in the right toothed plate (4) and a right needle pin hole (11) formed in the right half part of the front connecting plate (2), the right half part of the rear connecting plate (1), the right toothed plate (4) and the right half part of the front connecting plate (2) are connected together to form a right tooth shape, and the springs (8) are arranged in the needle pin rotating position hole (10) in pairs and are located at two sides of the left needle pin (7) or the right needle pin (9).
2. The combination elastic link plate of claim 1, wherein: the left needle pin (7) is tangent to the circular arc matching surface of the needle pin rotating position hole (10) formed in the left toothed plate (3), the right needle pin (9) is tangent to the circular arc matching surface of the needle pin rotating position hole (10) formed in the right toothed plate (4), and the left needle pin (7) and the right needle pin (9) rotate by-15 to +15 degrees in the needle pin rotating position hole (10) around the chain plate hole (6).
3. A tooth-turning toothed chain made using the combination elastic link plate of claim 1 or 2, characterized in that: the chain comprises a plurality of combined elastic chain plates (12) and pin shafts (13), wherein the combined elastic chain plates (12) are combined together in a staggered and clamped mode through the pin shafts (13) to form a rotary tooth-shaped chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302394.9A CN109990046B (en) | 2019-04-16 | 2019-04-16 | Combined elastic chain plate and rotary tooth type toothed chain thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302394.9A CN109990046B (en) | 2019-04-16 | 2019-04-16 | Combined elastic chain plate and rotary tooth type toothed chain thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109990046A CN109990046A (en) | 2019-07-09 |
| CN109990046B true CN109990046B (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910302394.9A Active CN109990046B (en) | 2019-04-16 | 2019-04-16 | Combined elastic chain plate and rotary tooth type toothed chain thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109990046B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202176669U (en) * | 2011-08-12 | 2012-03-28 | 吉林大学 | Tooth form chain with high connection firmness |
| CN103557270A (en) * | 2013-11-13 | 2014-02-05 | 金雁冰 | Tooth-shaped chain |
| CN109268460A (en) * | 2018-11-20 | 2019-01-25 | 宁波益捷精密机械有限公司 | A kind of rigid chain push-and-pull executing agency |
| CN209925517U (en) * | 2019-04-16 | 2020-01-10 | 山西工程职业技术学院 | Combined elastic chain plate and rotary tooth type tooth-shaped chain thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5164881B2 (en) * | 2009-02-25 | 2013-03-21 | 株式会社椿本チエイン | Silent chain |
-
2019
- 2019-04-16 CN CN201910302394.9A patent/CN109990046B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202176669U (en) * | 2011-08-12 | 2012-03-28 | 吉林大学 | Tooth form chain with high connection firmness |
| CN103557270A (en) * | 2013-11-13 | 2014-02-05 | 金雁冰 | Tooth-shaped chain |
| CN109268460A (en) * | 2018-11-20 | 2019-01-25 | 宁波益捷精密机械有限公司 | A kind of rigid chain push-and-pull executing agency |
| CN209925517U (en) * | 2019-04-16 | 2020-01-10 | 山西工程职业技术学院 | Combined elastic chain plate and rotary tooth type tooth-shaped chain thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109990046A (en) | 2019-07-09 |
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