CN205780640U - Chain drive system - Google Patents
Chain drive system Download PDFInfo
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- CN205780640U CN205780640U CN201620469068.9U CN201620469068U CN205780640U CN 205780640 U CN205780640 U CN 205780640U CN 201620469068 U CN201620469068 U CN 201620469068U CN 205780640 U CN205780640 U CN 205780640U
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- Prior art keywords
- chain
- sprocket
- drive system
- face
- connecting cylinder
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Abstract
The utility model discloses a kind of chain drive system, including drive sprocket, driven sprocket and the chain of ring seal structure, the endoporus of drive sprocket is splined hole structure, it is the most interlaced hinged by bearing pin that chain is made up of internal messing silent chain, the first chain link and the second chain link the first chain link, the second chain link and bearing pin；Described drive sprocket and driven sprocket all include two end face disks, two end face disks are connected by the middle connecting cylinder at middle part, between two end face disks of middle connecting cylinder periphery, it is evenly distributed in the roller of multiple composition sprocket, and described internal messing silent chain also is formed to break away and limits by two end face disks.The beneficial effects of the utility model are, frictional resistance is little, noise is low, and transmission efficiency is high；And simple in construction, manufacture difficulty are low, manufacturing cost and use cost is low.
Description
Technical field
This utility model relates to a kind of drive system, particularly a kind of chain drive system.
Background technology
Existing bushroller chain includes drive sprocket, driven sprocket and chain, chain is made up of inner plate, outer plate, sleeve, bearing pin, roller, outer plate is fixed on bearing pin, inner plate is fixed on sleeve, being respectively formed coaxial rotating attachment structure between roller and sleeve and between sleeve with bearing pin, chain forms rolling friction with sprocket wheel and is connected, thus bushroller chain is lightweight, life-span length, low cost, therefore, bushroller chain is widely used in existing motorcycle, electric motor car and bicycle.But the chain part quantity of this drive mechanism is many, and running noises is big.And more prominent be that sprocket wheel needs special equipment and dedicated tool processing, and the intensity of the chain toothed portion of sprocket wheel and wearability require height, and the corresponding material manufactured and heat treatment requirements are high, and sprocket is difficult to repair after damaging, and cause manufacturing cost and use cost high.For this reason, it may be necessary to existing chain drive system is improved.
Summary of the invention
The purpose of this utility model is aiming at the deficiencies in the prior art, a kind of chain drive system is provided, this system uses profile of tooth chain and the sprocket wheel of roller type sprocket, thus simplify the number of parts of drive system structure, reduce fretting wear and the power consumption of drive system, and reduce manufacture difficulty, and manufacturing cost and use cost.
For achieving the above object, this utility model adopts the following technical scheme that
A kind of chain drive system, including drive sprocket, driven sprocket and the chain of ring seal structure, the endoporus of drive sprocket is splined hole structure, and it is the most interlaced hinged by bearing pin that chain is made up of internal messing silent chain, the first chain link and the second chain link the first chain link, the second chain link and bearing pin；Described drive sprocket and driven sprocket all include two end face disks, two end face disks are connected by the middle connecting cylinder at middle part, between two end face disks of middle connecting cylinder periphery, it is evenly distributed in the roller of multiple composition sprocket, and described internal messing silent chain also is formed to break away and limits by two end face disks.
Use this utility model of preceding solution, owing to chain is constituted internal messing silent chain by the first chain link, the second chain link and bearing pin, and drive sprocket and driven sprocket all consist of the sprocket of respective sprockets roller, roller is used to substitute the sprocket of the synchronous sprocket wheel in conventional synchronization silent chain transmission；It has not only played conventional synchronization silent chain stable movement, the low advantage of noise, simultaneously, sliding friction between chain with sprocket wheel is connected and is converted into rolling friction connection, thus effectively reduce and synchronize chaindriven fretting wear and the kinetic equation loss of frictional resistance, improve transmission efficiency, on the premise of same chain intensity, improve chain bearing capacity.It can be used for electric motor car, motorcycle, bicycle and electromotor, to replace existing bushroller chain, to synchronize chain or Synchronizable drive systems.The more important thing is, roller can be changed after damaging easily, does not results in sprocket wheel entirety and scraps.Additionally, owing to sprocket wheel forms wire rewinding disc structure by two end face disks and middle connecting cylinder, the sideslip of silent chain is formed and limits by the forward surface of two end face disks, it is not required to arrange guide plate on silent chain, thus compact chain structure, decrease taking up room of drive system, be beneficial to arrange on vehicle.More simpler than existing synchronization chain drive structure.Two end face disks of sprocket wheel and middle connecting cylinder can be by casting, forging or be welded into overall structure, also can pass through flat key, spline, bolt or axis hole tight fit connection and form combinative structure, its structure is formed flexibly, situation can be selected to determine according to concrete manufacturing process or material, wherein, when using flat key, spline or axis hole tight fit connection structure, end face disk is sleeved on middle connecting cylinder.
Preferably, described first chain link is stacked by 2～3 chain tablet weights；Described second chain link is made up of two the chain sheets laying respectively at described first chain link both sides.To simplify structure, improve efficiency of assembling；And chain is only made up of chain sheet and bearing pin, it is effectively reduced number of parts, improves production efficiency, reduce manufacturing cost.Even if the material that the chain sheet in the first chain link and the second chain link uses different-thickness makes, both has same cross-sectional, can use same blanking die stamping-out.
Preferably, described drive sprocket and driven sprocket, all in dismountable combinative structure, connect by least two articulation bolt is fixing between end face disk and middle connecting cylinder.Reduce sprocket wheel difficulty of processing, reduce manufacturing cost.Wherein, articulation bolt can a corresponding independent end face disk and being connected with middle connecting cylinder, it is possible to connected by two end face disks by articulation bolt, and centre connecting cylinder plays spacer effect.
Preferably, described splined hole runs through and constitutes the described middle connecting cylinder of described drive sprocket and two described end face disks.To guarantee between middle connecting cylinder and two end face disks without rotating dislocation, improve sprocket wheel rigidity and intensity, and then improve service life.
Preferably, the medial surface outward flange of described end face disk is formed with guiding surface.To guarantee that chain enters or exit sprocket wheel smoothly, reduce running resistance, improve transmission efficiency.
Preferably, the rotating sleeve that is lined with of described roller, sleeve set is on roller bearing, and roller bearing two ends are separately fixed on two described end face disks.To form, by sleeve and roller bearing, the combinative structure that roller supports, in order to after sleeve wears away, increase the service life by the way of only changing sleeve, and reduce use cost.
Preferably, said two end face disk is by forming the restriction of the sideslip to described internal messing silent chain to axially limiting of described bearing pin.To be formed the lateral register of chain by the fit structure of bearing pin and two end face disks, chain is not required to arrange guide plate, and sprocket wheel is without additionally arranging special guide frame, to simplify structure further, reduces manufacturing cost, and improves the convenience safeguarded and keep in repair.
It is further preferred that the gap summation between the two ends of described bearing pin length and two end face disks is 1.0～5.0mm.With by rational gap width, it is ensured that chain operates steadily, smooth and easy, without card group, and reduce the frictional resistance between chain and sprocket wheel and abrasion.
It is further preferred that described bearing pin head is circular arc or has the guiding conical surface.With guarantee in terms of planform chain operate steadily, smooth and easy, without card group, and reduce the frictional resistance between chain and sprocket wheel and abrasion.
Experiments verify that, chain drive system of the present utility model is compared with the Roller Chain Drive system of traditional structure, in the case of pitch is identical with outer chain sheet thickness, its load capacity can improve 10～30%, under the same load, its life-span can improve nearly 50%, and manufacturing cost can reduce nearly 30%.
The beneficial effects of the utility model are, by being improved by the sprocket wheel in the toothed synchronous chain drive structure of traditional structure so that it is form rolling friction fit structure with chain, reduce frictional resistance and noise, improve transmission efficiency；And simple in construction, manufacture difficulty are low, manufacturing cost and use cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation axonometric drawing of the present utility model.
Fig. 2 is structural representation front view of the present utility model.
Fig. 3 is the part-structure schematic diagram of this utility model middle sprocket.
Fig. 4 is the position relationship schematic diagram of this utility model embodiment 1 middle sprocket and chain.
Fig. 5 is the position relationship schematic diagram of this utility model embodiment 2 middle sprocket and chain.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings, but is the most therefore limited among described scope of embodiments by this utility model.
Embodiment 1, see Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of chain drive system, including the drive sprocket being positioned in Fig. 1 and Fig. 2 left side, it is positioned in Fig. 1 and Fig. 2 the driven sprocket on right side, and the chain of the ring seal structure being connected on drive sprocket and driven sprocket, the endoporus of drive sprocket is splined hole structure, drive sprocket and driven sprocket all include two end face disks 5, two end face disks 5 are connected by the middle connecting cylinder 6 at middle part, the roller 4 of multiple composition sprocket it is evenly distributed between two end face disks 5 of middle connecting cylinder 6 periphery, roller 4 is rotating is lined with sleeve 8, sleeve 8 is sleeved on roller bearing 9, roller bearing 9 two ends are separately fixed on two end face disks 5；Chain is made up of internal messing silent chain first chain link the 1, second chain link 2 and bearing pin 3, and the first chain link 1 and the second chain link 2 are the most interlaced hinged by bearing pin 3, and two end face disks 5 are by limiting the sideslip axially limiting the internal engaging tooth shape chain of formation of bearing pin 3；Clearance t 1 and t2 sum between two ends and two end face disks 5 of bearing pin 3 length is 1.0～5.0mm, and bearing pin 3 head is circular arc 3a.
Wherein, the first chain link 2 is stacked by 3 chain tablet weights；Second chain link 3 is made up of two the chain sheets laying respectively at described first chain link 2 both sides；Drive sprocket and driven sprocket are all in dismountable combinative structure, connect by two articulation bolts 7 are fixing between end face disk 5 and middle connecting cylinder 6 on drive sprocket, connect by four articulation bolts 7 are fixing between end face disk 5 and middle connecting cylinder 6 on driven sprocket, articulation bolt 7 is all also cross two end face disks 5 and middle connecting cylinder 6, and fastened by nut 7a, two end face disks 5 and middle connecting cylinder 6 are each formed with articulation bolt hole friction tight with articulation bolt 7；The medial surface outward flange of two end face disks 5 of drive sprocket and driven sprocket is formed with guiding surface 5a；Splined hole on drive sprocket runs through and constitutes the middle connecting cylinder 6 of drive sprocket and two end face disks 5.
In the present embodiment, it is possible to form screw wherein on an end face disk 5, formed and articulation bolt 7 friction tight articulation bolt hole on middle connecting cylinder 6 at another end face disk 5, use nut 7a to cancel fixing.Also can be formed and articulation bolt 7 friction tight articulation bolt hole on two end face disks 5 at the two ends formation screw of middle connecting cylinder 6, so that two end face disks 5 are connected separately through articulation bolt 7 is fixing with middle connecting cylinder 6, are also not required to arrange fix and use nut 7a.
In the present embodiment, two end face disks 5 and middle connecting cylinder 6 on drive sprocket and driven sprocket pass through flat key, spline or axis hole tight fit connection, the sprocket wheel of combinative structure is formed, it is possible to by casting, forge or weld the integrally-built sprocket wheel of formation in order to substitute articulation bolt 7.
In the present embodiment, when being formed circumferentially positioned by alignment pin 10 between end face disk 5 and middle connecting cylinder 6, articulation bolt 7 may be used without general non-articulation standard bolt and substitutes.
Embodiment 2, sees Fig. 5, and described bearing pin 3 head has guiding conical surface 3b.
Remaining structure of the present embodiment is same as in Example 1, does not repeats them here.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description, principle of the present utility model is simply described; on the premise of without departing from this utility model spirit and scope; this utility model also has various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (9)
1. a chain drive system, including drive sprocket, driven sprocket and the chain of ring seal structure, the endoporus of drive sprocket is splined hole structure, it is characterized in that, described chain is constituted internal messing silent chain by the first chain link (1), the second chain link (2) and bearing pin (3)；Described drive sprocket and driven sprocket all include two end face disks (5), two end face disks (5) are connected by the middle connecting cylinder (6) at middle part, between two end face disks (5) of middle connecting cylinder (6) periphery, it is evenly distributed in the roller (4) of multiple composition sprocket, and described internal messing silent chain also is formed to break away and limits by two end face disks (5).
Chain drive system the most according to claim 1, it is characterised in that described first chain link (1) is stacked by 2～3 chain tablet weights；Described second chain link (2) is made up of two the chain sheets laying respectively at described first chain link (2) both sides.
Chain drive system the most according to claim 1, it is characterized in that, described drive sprocket and driven sprocket, all in dismountable combinative structure, connect by least two articulation bolt (7) is fixing between end face disk (5) and middle connecting cylinder (6).
Chain drive system the most according to claim 1, it is characterised in that described splined hole runs through and constitutes the described middle connecting cylinder (6) of described drive sprocket and two described end face disks (5).
Chain drive system the most according to claim 1, it is characterised in that the medial surface outward flange of described end face disk (5) is formed with guiding surface (5a).
6. according to the chain drive system described in any one in Claims 1 to 5, it is characterized in that, described roller (4) is rotating is lined with sleeve (8), sleeve (8) is sleeved on roller bearing (9), and roller bearing (9) two ends are separately fixed on two described end face disks (5).
7. according to the chain drive system described in any one in Claims 1 to 5, it is characterised in that said two end face disk (5) is by forming the restriction of the sideslip to described internal messing silent chain to axially limiting of described bearing pin (3).
Chain drive system the most according to claim 7, it is characterised in that the gap summation between described bearing pin (3) two ends and two end face disks (5) is 1.0～5.0mm.
Chain drive system the most according to claim 7, it is characterised in that described bearing pin (3) head is circular arc (3a) or has the guiding conical surface (3b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620469068.9U CN205780640U (en) | 2016-05-20 | 2016-05-20 | Chain drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620469068.9U CN205780640U (en) | 2016-05-20 | 2016-05-20 | Chain drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780640U true CN205780640U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620469068.9U Expired - Fee Related CN205780640U (en) | 2016-05-20 | 2016-05-20 | Chain drive system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780640U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864376A (en) * | 2016-05-20 | 2016-08-17 | 张应新 | Chain transmission system |
| CN109985816A (en) * | 2019-05-06 | 2019-07-09 | 长沙六竹机电科技有限公司 | A kind of control method of narrowband formula logistic sorting machine |
| CN110630706A (en) * | 2019-10-11 | 2019-12-31 | 吉林大学 | Self-adaptive tension sprocket |
-
2016
- 2016-05-20 CN CN201620469068.9U patent/CN205780640U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864376A (en) * | 2016-05-20 | 2016-08-17 | 张应新 | Chain transmission system |
| CN109985816A (en) * | 2019-05-06 | 2019-07-09 | 长沙六竹机电科技有限公司 | A kind of control method of narrowband formula logistic sorting machine |
| CN110630706A (en) * | 2019-10-11 | 2019-12-31 | 吉林大学 | Self-adaptive tension sprocket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20200520 |
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| CF01 | Termination of patent right due to non-payment of annual fee |