CN110630706B - Self-adaptive tensioning chain wheel - Google Patents
Self-adaptive tensioning chain wheel Download PDFInfo
- Publication number
- CN110630706B CN110630706B CN201910960643.3A CN201910960643A CN110630706B CN 110630706 B CN110630706 B CN 110630706B CN 201910960643 A CN201910960643 A CN 201910960643A CN 110630706 B CN110630706 B CN 110630706B
- Authority
- CN
- China
- Prior art keywords
- sprocket
- chain
- wheel
- hobbing
- side plate
- 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.)
- Active
Links
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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/30—Chain-wheels
-
- 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
- F16H7/10—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/30—Chain-wheels
- F16H2055/306—Chain-wheels with means providing resilience or vibration damping in chain sprocket wheels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a self-adaptive tensioning chain wheel, which is used for solving the technical problems that a chain wheel mechanism in the prior art does not have a self-adaptive function, cannot effectively ensure that a certain radial force is generated when a chain wheel is in hobbing, cannot independently face the technical problems that impact and vibration are generated until chain pitch is increased and a tooth jumping phenomenon occurs, and particularly comprises two groups of chain wheel side plates, a middle wheel is arranged between the two groups of chain wheel side plates, a plurality of rotatable chain wheel hobbing wheels are uniformly arranged in the radial direction of the middle wheel and are elastically connected with the middle wheel, any chain wheel hobbing wheel can generate an elastic force, the chain wheel hobbing wheels move along a preset direction under the action of the elastic force and are contacted with two corresponding meshing teeth so as to tension a toothed chain.
Description
Technical Field
The invention relates to the technical field of mechanical transmission equipment, in particular to a self-adaptive tensioning chain wheel.
Background
Under the current trend, the mechanical transmission equipment is widely applied to industrial production. The chain transmission is a flexible transmission, and is characterized by compact structure, high reliability and low requirements for various industrial working environments, and can be particularly used in mechanical equipment with large center distance, so that the chain transmission is widely applied to automobiles, motorcycles, engineering machinery and some conveying devices.
In the prior art, due to abrasion of a chain, the chain pitch can be increased, at the moment, the chain is meshed with a chain wheel, larger impact and vibration can be generated, and the phenomenon of tooth jump can also occur when serious. At present, most of the methods for solving the impact vibration are to arrange a tensioning wheel, but the impact and vibration caused by the change of the chain pitch after the abrasion of the chain can not be solved.
Based on the above, it is necessary to provide an adaptive tensioning sprocket, which is different from a tensioning mode of arranging a tensioning wheel, and is used for realizing that a certain radial force can be kept on the sprocket hobbing at any time so as to keep tensioning of a chain at any time, so that the sprocket and the chain can always keep an optimal meshed state, the impact and vibration caused when the chain and the sprocket are meshed are obviously reduced, and the phenomenon of tooth jumping caused by increase of the chain pitch after the abrasion of the chain is avoided.
Disclosure of Invention
The invention aims to solve the technical problems that a chain wheel mechanism in the background art does not have a self-adaptive function, a certain radial force cannot be effectively ensured to exist at the time of hobbing a chain wheel, the chain cannot independently face the phenomena of impact and vibration until chain pitch increases, tooth jump phenomenon occurs and the like, and provides a self-adaptive tensioning chain.
An adaptive tensioning sprocket for driving a connecting toothed chain, comprising:
two sets of sprocket side plates;
The middle wheel is arranged between the two groups of sprocket side plates and has the same circle center with the two groups of sprocket side plates;
A plurality of rotatable sprocket hobbing, a plurality of said sprocket hobbing being uniformly disposed radially of said intermediate wheel and being in resilient connection therewith, and any one of said sprocket hobbing being capable of producing a resilient force which moves said sprocket hobbing to vary its distance from said center of a circle;
The tooth-shaped chain is characterized by comprising a plurality of meshing spaces, wherein one meshing space is arranged between any two adjacent meshing teeth of the tooth-shaped chain, and the sprocket hobbing can be positioned in the corresponding meshing space so as to realize meshing connection between the tooth-shaped chain and the intermediate wheel;
the sprocket hobbing moves along a preset direction under the action of the elastic force and contacts with the two corresponding meshing teeth so as to tension the toothed chain; or the sprocket hobbing moves along the preset direction to reach a limit position under the action of the elastic force, and the sprocket hobbing can tension the toothed chain when in the limit position.
Preferably, the sprocket side plate is provided with:
a plurality of roller pin bracket sliding grooves which are uniformly arranged along the circumferential direction of the sprocket side plate;
the chain wheel hobbing device comprises chain wheel side plates, a plurality of roller pin support sliding grooves and a plurality of roller pin support sliding grooves, wherein the roller pin support sliding grooves on the two groups of the chain wheel side plates are arranged in one-to-one correspondence, and one chain wheel hobbing is correspondingly arranged between the two roller pin support sliding grooves which are arranged in one-to-one correspondence.
The adaptive tension sprocket as in, wherein the roller pin bracket sliding groove is configured as an rectangle and has a length arranged in a radial direction of the sprocket side plate;
the preset direction is the length direction of the sliding groove of the rolling pin bracket.
Preferably, the method further comprises the following steps:
The spring positioning grooves are uniformly formed in the radial direction of the intermediate wheel, and the spring positioning grooves are in one-to-one correspondence with the chain wheel hobbing.
Preferably, the method further comprises the following steps:
A spring to generate the elastic force;
Wherein, the first end of the spring is fixed in any one of the spring positioning grooves; and a roll pin bracket, which includes:
The frame body is fixedly connected with the second end of the spring;
The middle part of the frame body forms a hollow area, and the hollow area enables the frame body to be divided into two moving ends;
wherein, two said moving ends can be placed in the corresponding said rolling pin bracket sliding grooves of the same sprocket side plate no longer respectively.
Preferably, the two moving ends are respectively provided with a pin hole;
a sprocket roller pin in transition fit with the two pin holes;
The chain wheel rolling pin is rotationally connected with the chain wheel gear hobbing, and the chain wheel gear hobbing part is positioned in the hollow area;
wherein the sprocket roll pin is configured as a roll pin having an equal diameter at both ends and a smaller diameter than the middle end.
Preferably, the length of the moving end is smaller than the length of the sliding groove of the rolling pin bracket;
When the sprocket hobbing can tension the toothed chain and form the limit position, the difference between the length of the movable end and the length of the sliding groove of the roller pin bracket is one third of the length of the movable end.
Specifically, the sprocket side plate has a radius greater than the radius of the intermediate wheel;
When the toothed chain and the middle wheel form meshed connection, the toothed chain forms a virtual arc track, and the radius of the virtual arc track is equal to the radius of the side plate of the chain wheel.
Specifically, the surfaces of the sprocket side plate and the intermediate wheel are provided with a plurality of bolt holes in one-to-one correspondence;
Wherein, on the surface of the sprocket side plate or the middle wheel, two adjacent bolt holes are arranged in 60-degree rotational symmetry;
Wherein the bolt holes are used for arranging fastening components to mount two groups of the chain wheel side plates and the middle wheel together;
The fastening component is a bolt, a nut and a gasket.
Specifically, the distances from the circle centers of the bolt holes formed in the surface of the sprocket side plate to the circle center of the sprocket side plate are equal to one half of the radius of the sprocket side plate.
The invention has the beneficial effects that:
Firstly, the self-adaptive tensioning chain wheel provided by the invention has the advantages of self-adaptive function, novel structure, convenience in disassembly, adjustable range of initial tensioning force, capability of keeping the best meshing state with the chain at any time, and capability of effectively reducing the impact and vibration when the chain is meshed with the chain wheel, thereby reducing the occurrence probability of the tooth jump phenomenon, widening the types of tensioning devices and providing more choices for a chain transmission mechanism in mechanical transmission equipment.
Secondly, preset and extreme position to the tensioning force at the initial time all realize through rolling pin support sliding tray, and rolling pin support sliding tray effect is the length of adjusting the tooth chain pitch, and the spring constant head tank can provide the support for the spring, guarantees stability.
Thirdly, the spring generates elastic force action and the frame body, so that the two moving ends slide in the corresponding rolling pin support sliding grooves, the rolling pin support sliding grooves limit the moving direction of the moving ends, and the maximum moving distance of the moving ends can be limited.
Fourth, in this embodiment, the sprocket roller pin is rotatably connected with the sprocket gear hobbing to achieve that the sprocket gear hobbing is rotatable, the toothed chain and the wheel gear hobbing correspond to continuous belt slippage, further reducing friction and wear between the toothed chain and the adaptive tensioning sprocket in the chain drive.
Fifth, sprocket gear hobbing, sprocket rolling pin, rolling pin bracket and two movable ends can float a certain tensioning range along the radial direction of the intermediate wheel, and the phenomenon that the spring is not stressed and cannot be tensioned can be avoided.
Drawings
The invention is described in further detail below with reference to the drawings and the detailed description.
FIG. 1 is an isometric view of an adaptive tensioning sprocket provided by the present invention;
FIG. 2 is a front view of an adaptive tensioning sprocket provided by the present invention;
FIG. 3 is a top view of an adaptive tensioning sprocket provided by the present invention;
FIG. 4 is an isometric view of an adaptive tension sprocket with a set of sprocket side plates removed;
FIG. 5 is a schematic illustration of a sprocket hobbing arrangement of an adaptive tensioning sprocket provided by the present invention;
FIG. 6 is an isometric view of a roller pin bracket, sprocket hobbing of the adaptive tensioning sprocket provided by the present invention;
FIG. 7 is an isometric view of a fastener assembly of an adaptive tensioning sprocket provided by the present invention;
fig. 8 is an isometric view of a sprocket roll pin of an adaptive tensioning sprocket provided by the present invention.
Reference numerals in the drawings denote:
Sprocket side plate 10, intermediate wheel 20, sprocket hobbing 30, and meshing space 40;
roller pin bracket sliding groove 110, spring positioning groove 210, spring 310, roller pin bracket 320;
A frame 321, a movable end 322, a hollow area 323, a pin hole 324 and a chain wheel rolling pin 340;
bolt hole 123, bolt 1, nut 2, gasket 3.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an adaptive tensioning chain wheel which needs to have an adaptive function, and the adaptive function is realized by being integrated on the self and has no additional auxiliary device except the adaptive function, so that the adaptive tensioning chain wheel can be independently used; the adaptive function can be understood as: a certain radial force is ensured to the sprocket gear 30 at any time, so that the sprocket gear can be meshed with the toothed chain 100, tension is formed, and the technical problem that the gear jump phenomenon occurs due to the fact that larger impact and vibration are generated until the chain pitch is increased is solved.
Referring specifically to fig. 4, and referring to fig. 1-3, the adaptive tensioning sprocket for driving a toothed chain 100 includes two sets of sprocket side plates 10; the middle wheel 20 is arranged between the two groups of sprocket side plates 10, and the middle wheel 20 and the two groups of sprocket side plates 10 have the same circle center; the self-adaptive tensioning chain wheel is structurally designed for realizing the functions of the self-adaptive tensioning chain wheel.
A plurality of rotatable sprocket teeth 30, the rotatable sprocket teeth 30 being capable of reducing wear and extending service life when engaged; the plurality of sprocket teeth 30 are uniformly arranged in the radial direction of the intermediate wheel 20, and the plurality of sprocket teeth 30 are elastically connected with the intermediate wheel 20, and any one of the sprocket teeth 30 can generate an elastic force that can move the sprocket teeth 30 to change the distance from the center of the circle; it will be appreciated that the present invention is embodied by designing a plurality of sprocket teeth 30 in order to achieve a moment of force that is capable of radial forces.
The plurality of meshing spaces 40 are formed between any two adjacent meshing teeth of the toothed chain 100, one meshing space 40 is formed between any two adjacent meshing teeth of the toothed chain 100, and the sprocket hobbing 30 can be positioned in the corresponding meshing space 40 so as to realize meshing connection between the toothed chain 100 and the intermediate wheel 20, thereby realizing driving motion and power transmission.
The sprocket hobbing 30 moves along a preset direction under the action of elastic force and contacts with the corresponding two meshing teeth to tension the toothed chain 100; in this way, tensioning is achieved and a tensioning force can be ensured at all times; it will be appreciated that under the action of the elastic force, tension is developed to provide a float range;
Or the range of the tensioning force can be adjusted in an initial state through a certain limiting effect, so that the sprocket hobbing 30 moves along a preset direction to reach a limit position under the action of the elastic force, and the limit position is equivalent to the limitation of the tensioning force when the limit position is at the limit position, and the sprocket hobbing 30 needs to be ensured to be capable of tensioning the toothed chain 100, thereby achieving the purpose of the invention.
In one embodiment, referring to FIG. 1, sprocket side plate 10 is provided with: a plurality of roller pin bracket sliding grooves 110, the plurality of roller pin bracket sliding grooves 110 being uniformly arranged along a circumferential direction of the sprocket side plate 10; wherein, a plurality of roller pin bracket sliding grooves 110 on the two groups of sprocket side plates 10 are arranged in a one-to-one correspondence, and a sprocket hobbing 30 is correspondingly arranged between the two roller pin bracket sliding grooves 110 which are arranged in a one-to-one correspondence; in particular, in order to better represent reduction of impact and vibration, the one-to-one correspondence is uniformly arranged in a mode adopted in the design of the invention, so that all parts can be more uniform when being stressed.
Referring to fig. 1, the roller pin bracket sliding groove 110 is configured as a rectangular shape, and its length is arranged in the radial direction of the sprocket side plate 10; wherein, the preset direction is the length direction of the rolling pin bracket sliding groove 110; it will be appreciated that the above-mentioned floating range, the preset of the tension force at the beginning and the extreme position are all achieved by the roller pin bracket sliding groove 110, and the roller pin bracket sliding groove 110 functions to adjust the length of the chain pitch of the toothed chain 100 and to perform its function by cooperating with the following components.
Referring to fig. 4, the method further includes: the spring positioning grooves 210 are uniformly formed in the radial direction of the intermediate wheel 20, the spring positioning grooves 210 are in one-to-one correspondence with the sprocket hobbing 30, and the spring positioning grooves 210 can provide support for the springs 310 to ensure stability.
Referring to fig. 5 and 6, the method further includes: a spring 310, the spring 310 for generating an elastic force; wherein, a first end of the spring 310 is fixed in any one of the spring positioning slots 210; and a roll pin holder 320, the roll pin holder 320 including: a frame 321 fixedly connected to the second end of the spring 310; the two moving ends 322, the middle part of the frame 321 forms a hollow area 323, and the hollow area 323 enables the frame 321 to be divided into two moving ends 322; wherein the two moving ends 322 can be respectively placed in the corresponding roller pin bracket sliding grooves 110 of the same sprocket side plate 10. The roller pin bracket 320 transmits the elastic force generated by the spring 310, specifically, the direction of the elastic force is the radial direction of the middle wheel, specifically, the mode of moving along the preset direction is realized by designing two moving ends 322, and specifically, the working principle is that the spring 310 generates the elastic force to act on the frame 321, so that the two moving ends 322 slide in the corresponding roller pin bracket sliding grooves 110, the roller pin bracket sliding grooves 110 limit the moving direction of the moving ends 322, and the maximum moving distance of the moving ends 322 can be limited.
Referring to fig. 6, two moving ends 322 are respectively provided with pin holes 324; sprocket roller pins 340 that transition fit with the two pin holes 324; wherein the sprocket roller pin 340 is rotatably connected with the sprocket roller teeth 30, and the sprocket roller teeth 30 are partially located in the hollow area 323; wherein the sprocket roll pin 340 is configured as a roll pin having an equal diameter at both ends and a smaller diameter than the middle end; specifically, in this embodiment, the sprocket roller pin 340 is rotatably connected with the sprocket gear hobbing 30 to realize that the sprocket gear hobbing 30 is rotatable, and the toothed chain 100 and the sprocket gear hobbing 30 correspond to continuous rolling belt sliding, so that friction and wear between the toothed chain 100 and the adaptive tensioning sprocket in chain transmission are further reduced, and the occurrence probability of a tooth jump phenomenon is reduced.
In a more preferred embodiment, referring to fig. 1, the length of the movable end 322 is smaller than the length of the sliding groove 110 of the roller pin bracket; when the sprocket hobbing 30 can tension the toothed chain 100 and form the limit position, the difference between the length of the movable end 322 and the length of the sliding groove 110 of the roller pin bracket is one third of the length of the movable end 322. The embodiment enables the sprocket hobbing 30, the sprocket roller pin 340, the roller pin bracket 320 and the two movable ends 322 to float a certain tensioning range along the radial direction of the intermediate wheel 20, and the phenomenon that the spring 310 is not stressed and cannot play a tensioning role is avoided; in this embodiment, the difference between the length of the moving end 322 and the length of the sliding groove 110 of the rolling pin bracket is about one third of the length of the moving end 322, specifically, in this embodiment, the difference between the length of the moving end 322 and the length of the sliding groove 110 of the rolling pin bracket is about one third of the length of the moving end 322; meanwhile, a group of technical parameters of the self-adaptive tensioning chain wheel as specific dimensions of application are provided, and the technical parameters are as follows:
the sprocket side plate 10 has a diameter of 116mm and the intermediate wheel 20 has a circumferential diameter of 90mm, and the difference between the length of the movable end 322 and the roller pin bracket sliding groove 110 is in the range of 5mm to 8 mm.
In a more preferred embodiment, referring to FIG. 4, the sprocket side plate 10 has a radius greater than the radius of the intermediate wheel 20; when the toothed chain 100 is in meshed connection with the intermediate wheel 20, the toothed chain 100 forms a virtual circular arc track, and the radius of the virtual circular arc track is equal to that of the sprocket side plate 10; the edge of the sprocket side plate 10 can be nearly flush with the back of the toothed chain 101 to limit axial play of the toothed chain 100 during movement.
Referring to fig. 2 and 1, a plurality of bolt holes 123 are formed on the surfaces of the sprocket side plate 10 and the intermediate wheel 20 in a one-to-one correspondence; wherein, on the surface of the sprocket side plate 10 or the intermediate wheel 20, two adjacent bolt holes 123 are arranged in 60-degree rotational symmetry; wherein the bolt holes 123 are used to provide a fastening assembly to mount the two sets of sprocket side plates 10 and intermediate wheel 20 together; the fastening components are bolts 1, nuts 2 and gaskets 3.
Referring to fig. 2 and 1, the distance from the center of the plurality of bolt holes 123 formed on the surface of the sprocket side plate 10 to the center of the sprocket side plate 10 is equal to one half of the radius of the sprocket side plate 10; this not only achieves the purpose of fastening between the sprocket side plate 10 and the intermediate wheel 20, but also ensures the strength of the sprocket side plate 10 to some extent.
Based on the above, the present invention can be independently used, and the sprocket roller pin 340 and the roller pin bracket 320 move as a whole, and the sprocket roller 30 and the sprocket roller pin 340 rotate relatively. The center distance between the main sprocket and the auxiliary sprocket is predetermined under the condition that the toothed chain 100 has a certain tension at the beginning, even if the toothed chain 100 is damaged, the chain pitch is increased, and the self-adaptive tensioning sprocket can embody the self-adaptive advantage thereof, so as to realize tensioning.
Based on the above, the technical scheme has the following characteristics:
Firstly, the self-adaptive tensioning chain wheel provided by the invention has the advantages of self-adaptive function, novel structure, convenience in disassembly, adjustable range of initial tensioning force, capability of keeping the best meshing state with the chain at any time, and capability of effectively reducing the impact and vibration when the chain is meshed with the chain wheel, thereby reducing the occurrence probability of the tooth jump phenomenon, widening the types of tensioning devices and providing more choices for a chain transmission mechanism in mechanical transmission equipment.
Secondly, the preset and limit positions of the tensioning force at the initial stage are realized through the rolling pin bracket sliding groove 110, the rolling pin bracket sliding groove 110 is used for adjusting the length of the chain pitch of the toothed chain 100, and the spring positioning groove 210 can provide support for the spring 310 to ensure stability.
Third, the spring 310 generates an elastic force to act on the frame 321, so that the two moving ends 322 slide in the corresponding rolling pin support sliding grooves 110, and the rolling pin support sliding grooves 110 limit the moving direction of the moving ends 322 and can limit the maximum moving distance of the moving ends 322.
Fourth, in this embodiment, the sprocket roller pin 340 is rotatably connected to the sprocket roller 30 to enable the sprocket roller 30 to be rotatable, the toothed chain 100 and the sprocket roller 30 correspond to a continuous rolling belt slip, and further friction and wear between the toothed chain 100 and the adaptive tensioning sprocket in a chain drive is reduced.
Fifth, the sprocket hobbing 30, the sprocket roller pin 340, the roller pin bracket 320 and the two moving ends 322 can float a certain tensioning range along the radial direction of the intermediate wheel 20, and the phenomenon that the spring is not stressed and does not play a role in tensioning can be avoided.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications of the embodiments are within the scope of the present invention.
Claims (1)
1. An adaptive tensioning sprocket for driving a connecting toothed chain (100), characterized in that: comprising the following steps:
Two sets of sprocket side plates (10); an intermediate wheel (20) mounted between the two sets of sprocket side plates (10) and having the same center of a circle as the two sets of sprocket side plates (10);
A plurality of rotatable sprocket teeth (30), a plurality of the sprocket teeth (30) being uniformly arranged in a radial direction of the intermediate wheel (20) and being elastically connected to the intermediate wheel (20), and any one of the sprocket teeth (30) being capable of generating an elastic force that moves the sprocket teeth (30) to change a distance thereof from the center of a circle; the tooth-shaped chain (100) is meshed with the intermediate wheel (20) through the meshing space (40), and the sprocket hobbing (30) can be positioned in the corresponding meshing space (40) between any two adjacent meshing teeth of the tooth-shaped chain (100);
Wherein the sprocket hobbing (30) moves in a preset direction under the action of the elastic force and contacts with the two corresponding meshing teeth thereof to tension the toothed chain (100); or the sprocket hobbing (30) moves along the preset direction to reach a limit position under the action of the elastic force, and the sprocket hobbing (30) can tension the toothed chain (100) when the limit position is reached;
the sprocket side plate (10) is provided with:
A plurality of roller pin bracket sliding grooves (110), the plurality of roller pin bracket sliding grooves (110) being uniformly arranged along a circumferential direction of the sprocket side plate (10);
wherein, a plurality of roller pin bracket sliding grooves (110) on two groups of the chain wheel side plates (10) are arranged in a one-to-one correspondence manner, and one chain wheel hobbing (30) is correspondingly arranged between the two roller pin bracket sliding grooves (110) which are arranged in a one-to-one correspondence manner;
the roller pin bracket sliding groove (110) is configured as an rectangle, and its length is arranged along the radial direction of the sprocket side plate (10);
wherein the preset direction is the length direction of the rolling pin bracket sliding groove (110);
The method also comprises the following steps:
The spring positioning grooves (210) are uniformly formed in the radial direction of the intermediate wheel (20), and the spring positioning grooves (210) are arranged in one-to-one correspondence with the chain wheel hobbing (30);
The method also comprises the following steps:
-a spring (310), said spring (310) being adapted to generate said elastic force;
Wherein, the first end of the spring (310) is fixed in any one of the spring positioning grooves (210); and a roll pin holder (320) comprising:
A frame (321) fixedly connected to the second end of the spring (310);
the middle part of the frame body (321) forms a hollow area (323), and the hollow area (323) enables the frame body (321) to be divided into two moving ends (322);
Wherein, two said moving ends (322) can be placed in the corresponding said rolling pin bracket sliding grooves (110) of the same sprocket side plate (10) respectively;
the two moving ends (322) are respectively provided with a pin hole (324);
a sprocket roller pin (340) in transition engagement with both of the pin holes (324);
Wherein the sprocket roll pin (340) is rotationally connected with the sprocket roll (30), and the sprocket roll (30) is partially located in the hollow area (323);
wherein the sprocket roll pin (340) is configured as a roll pin having an equal diameter at both ends and a smaller diameter than the middle end;
the length of the moving end (322) is smaller than the length of the rolling pin bracket sliding groove (110);
wherein, the sprocket hobbing (30) can tension the toothed chain (100) and when the limit position is formed, the difference between the length of the moving end (322) and the length of the roller pin bracket sliding groove (110) is one third of the length of the moving end (322);
The sprocket side plate (10) has a radius greater than the radius of the intermediate wheel (20);
when the toothed chain (100) and the middle wheel (20) form meshed connection, the toothed chain (100) forms a virtual arc track, and the radius of the virtual arc track is equal to the radius of the chain wheel side plate (10);
The surfaces of the chain wheel side plates (10) and the intermediate wheel (20) are provided with a plurality of bolt holes (123) which are in one-to-one correspondence;
wherein on the surface of the sprocket side plate (10) or the intermediate wheel (20), two adjacent bolt holes (123) are arranged in 60-degree rotational symmetry;
wherein the bolt holes (123) are used to provide a fastening assembly to mount two sets of the sprocket side plates (10) and the intermediate wheel (20) together;
the fastening component is a bolt (1), a nut (2) and a gasket (3);
The distance from the circle centers of the plurality of bolt holes (123) formed in the surface of the sprocket side plate (10) to the circle center of the sprocket side plate (10) is equal to one half of the radius of the sprocket side plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910960643.3A CN110630706B (en) | 2019-10-11 | 2019-10-11 | Self-adaptive tensioning chain wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910960643.3A CN110630706B (en) | 2019-10-11 | 2019-10-11 | Self-adaptive tensioning chain wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110630706A CN110630706A (en) | 2019-12-31 |
| CN110630706B true CN110630706B (en) | 2024-10-01 |
Family
ID=68976174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910960643.3A Active CN110630706B (en) | 2019-10-11 | 2019-10-11 | Self-adaptive tensioning chain wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110630706B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983125A (en) * | 2021-11-22 | 2022-01-28 | 浙江夏厦精密制造股份有限公司 | Chain transmission mechanism with deformable engine roller chain wheel and belt chain |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205780640U (en) * | 2016-05-20 | 2016-12-07 | 张应新 | Chain drive system |
| CN107061648A (en) * | 2017-04-13 | 2017-08-18 | 常州工程职业技术学院 | A kind of compact tension pulley of built-in strainer |
| CN207131815U (en) * | 2017-08-24 | 2018-03-23 | 武汉钢铁集团湖北华中重型机械制造有限公司 | A kind of adjustable roller chain tension means |
| CN210531530U (en) * | 2019-10-11 | 2020-05-15 | 吉林大学 | An adaptive tensioning sprocket |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR870001186B1 (en) * | 1981-09-07 | 1987-06-16 | 가부시기가이샤 히다찌 세이사꾸쇼 | Chain sprocket shock absorber |
| CN101672352B (en) * | 2009-09-30 | 2011-05-11 | 东莞宏威数码机械有限公司 | Chain transmission tensioning device |
| DE102012001785A1 (en) * | 2012-01-31 | 2013-08-01 | Stefan Gerson Toth-Müller | Chain drive has chain wheel with mobile-implanted teeth whose geometry profile is corrected by displacement of teeth into radial direction using mechanical system so that looping range of chain wheel adapts to looping chain length |
| CN102619943A (en) * | 2012-04-14 | 2012-08-01 | 吉林大学 | Pitch-varying two-sided internal and external composite-meshing silent chain transmission system |
| CN207598859U (en) * | 2017-12-22 | 2018-07-10 | 绍兴国腾汽车配件有限公司 | A kind of wear-resisting low noise sprocket wheel |
-
2019
- 2019-10-11 CN CN201910960643.3A patent/CN110630706B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205780640U (en) * | 2016-05-20 | 2016-12-07 | 张应新 | Chain drive system |
| CN107061648A (en) * | 2017-04-13 | 2017-08-18 | 常州工程职业技术学院 | A kind of compact tension pulley of built-in strainer |
| CN207131815U (en) * | 2017-08-24 | 2018-03-23 | 武汉钢铁集团湖北华中重型机械制造有限公司 | A kind of adjustable roller chain tension means |
| CN210531530U (en) * | 2019-10-11 | 2020-05-15 | 吉林大学 | An adaptive tensioning sprocket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110630706A (en) | 2019-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2887691C (en) | Tensioner | |
| KR101388884B1 (en) | Sprocket | |
| US8202185B2 (en) | Random elastomer cushion rings for a chain sprocket | |
| US7037226B2 (en) | Dual cam surface clutch | |
| US9482323B2 (en) | Friction roller reducer and drive unit for electric automobile | |
| KR101322542B1 (en) | Sprocket for chain | |
| US6334829B1 (en) | Double-meshing-type silent chain drive and sprocket used therein | |
| US6440022B1 (en) | Double-meshing type silent chain and sprocket for meshing with the chain along outer circumference thereof | |
| CN110630706B (en) | Self-adaptive tensioning chain wheel | |
| US20060073927A1 (en) | Elastomer cushion ring for a random tooth roller chain sprocket | |
| US6334826B1 (en) | V belt type automatic transmission | |
| CN210531530U (en) | An adaptive tensioning sprocket | |
| CN1252401C (en) | Belt drive ring continuously variable transmission unit connector | |
| JP2005507479A (en) | Flexible drive ring belt | |
| GB2079892A (en) | Belt gearing | |
| AU2001245820A1 (en) | Drive ring CVT belt | |
| JP3081195B2 (en) | Double sided silent chain and double sided silent chain sprocket | |
| JPS624951A (en) | Synchronous power gearing | |
| KR20130136320A (en) | Continuously variable transmission for bicycle | |
| CN212106837U (en) | Drive sprocket | |
| CN208221556U (en) | It is a kind of can dynamic adjustment gear meshing backlass gear set | |
| AU2015272002A1 (en) | Tensioner | |
| CN108930782A (en) | A kind of transmission mechanism adjusted based on gear | |
| US3286540A (en) | Stepless speed change gear | |
| JPS59155630A (en) | Torsional vibration absorption device for vehicle power transmission 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 |