CN208040532U - Engine chain drive system - Google Patents
Engine chain drive system Download PDFInfo
- Publication number
- CN208040532U CN208040532U CN201820450363.9U CN201820450363U CN208040532U CN 208040532 U CN208040532 U CN 208040532U CN 201820450363 U CN201820450363 U CN 201820450363U CN 208040532 U CN208040532 U CN 208040532U
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- China
- Prior art keywords
- chain
- pressure pump
- dynamic rail
- cam shaft
- sprocket
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Abstract
The utility model discloses a kind of engine chain drive systems comprising camshaft sprocket, cam shaft chains orbit determination, crankshaft sprocket, cam shaft chains dynamic rail, high pressure pump sprocket, high-pressure pump chain orbit determination, high-pressure pump chain dynamic rail, the first transmission chain, the second transmission chain and guide rail bolt；Wherein, crankshaft sprocket is made of the upper layer sprocket wheel of coaxial configuration and lower layer's sprocket wheel；Wherein, guide rail bolt has affixed successively first end, compartmented and second end, and the one end of first end far from compartmented has thread segment；Wherein, the first end of guide rail bolt is inserted in the first through hole of cam shaft chains dynamic rail, and the thread segment of first end is tightened against on engine body, to make cam shaft chains dynamic rail be fixed on engine body；And wherein, the second through-hole of high-pressure pump chain dynamic rail is sheathed in the second end of guide rail bolt, to make high-pressure pump chain dynamic rail be fixed on engine body.Whereby, the engine chain drive system of the utility model, saves arrangement space.
Description
Technical field
The utility model is related to engine art, more particularly to a kind of engine chain drive system.
Background technology
Riding diesel engine design is developed, chain transmission mode is relatively common arrangement.Chain transmission mode
Arrangement is related to chain movement Trajectory Design, chain guide design.
In diesel engine chain transmission mode, chain guide plays movement locus positioning, chain tension to chain drive
The effects that auxiliary, chain guide arrange the position generally according to chain movement track, sprocket wheel to carry out, and arrangement form compares certainly
By, and existing chain drive mode, arrangement occupied space are bigger.
The information for being disclosed in the background technology part is merely intended to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition has been existing well known to persons skilled in the art
Technology.
Utility model content
The purpose of this utility model is to provide a kind of engine chain drive systems, to overcome existing chain drive system cloth
Set the bigger disadvantage of occupied space.
To achieve the above object, the utility model provides a kind of engine chain drive system comprising camshaft sprocket,
Cam shaft chains orbit determination, crankshaft sprocket, cam shaft chains dynamic rail, high pressure pump sprocket, high-pressure pump chain orbit determination, high-pressure pump chain are dynamic
Rail, the first transmission chain, the second transmission chain and guide rail bolt；Wherein, crankshaft sprocket is by the upper layer sprocket wheel of coaxial configuration and lower layer
Sprocket wheel is constituted；Wherein, camshaft sprocket is connected by lower layer's sprocket wheel of the first transmission chain and crankshaft sprocket；Wherein, high-pressure pump chain
Wheel is connected by the upper layer sprocket wheel of the second transmission chain and crankshaft sprocket；Wherein, the first transmission chain is mounted on cam shaft chains orbit determination
With in cam shaft chains dynamic rail, and one end of cam shaft chains dynamic rail offers first through hole；Wherein, the second transmission chain is mounted on
On high-pressure pump chain orbit determination and high-pressure pump chain dynamic rail, and one end of high-pressure pump chain dynamic rail offers the second through-hole；Wherein, it leads
Rail bolt has affixed successively first end, compartmented and second end, and the one end of first end far from compartmented has screw thread
Section；Wherein, the first end of guide rail bolt is inserted in the first through hole of cam shaft chains dynamic rail, and the thread segment of first end is tightened against
On engine body, to make cam shaft chains dynamic rail be fixed on engine body；And wherein, high-pressure pump chain dynamic rail
Second through-hole is sheathed in the second end of guide rail bolt, to make high-pressure pump chain dynamic rail be fixed on engine body.
Preferably, in above-mentioned technical proposal, the other end of cam shaft chains dynamic rail is provided with the first stretcher, and first
Tight device is adjusting the tensioning state of the first transmission chain.
Preferably, in above-mentioned technical proposal, the other end of high-pressure pump chain dynamic rail is provided with the second stretcher, and second
Tight device is adjusting the tensioning state of the second transmission chain.
Preferably, in above-mentioned technical proposal, the diameter of the compartmented of guide rail bolt is more than the first of cam shaft chains dynamic rail
The diameter of through-hole.
Preferably, in above-mentioned technical proposal, the diameter of the compartmented of guide rail bolt is more than the second of high-pressure pump chain dynamic rail
The diameter of through-hole.
Compared with prior art, the utility model has the advantages that：The engine chain drive system of the utility model
System, saves arrangement space, and ensure that the stability that two dynamic rails respectively work, and avoids and generates unnecessary interference.
Description of the drawings
Fig. 1 is the main structure diagram of engine chain drive system according to the present utility model.
Fig. 2 is the side structure schematic view of engine chain drive system according to the present utility model.
Fig. 3 is the close-up schematic view of engine chain drive system according to the present utility model.
Fig. 4 is the structural schematic diagram of engine chain drive system middle guide bolt according to the present utility model.
Main appended drawing reference explanation：
1- camshaft sprockets, 2- cam shaft chains orbit determination, 3- crankshaft sprockets, 4- cam shaft chains dynamic rails, 41- first are tensioned
Device, 5- high pressure pump sprockets, 6- high-pressure pump chain orbit determination, 7- high-pressure pump chain dynamic rails, the second stretchers of 71-, the first transmission chains of 8-,
The second transmission chains of 9-, 10- guide rail bolts, 101- first ends, 102- thread segments, 103- compartmenteds, 104- second ends.
Specific implementation mode
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
Novel protection domain is not restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other component parts.
As shown in Figures 1 to 4, Fig. 1 is the main structure diagram of engine chain drive system according to the present utility model；
Fig. 2 is the side structure schematic view of engine chain drive system according to the present utility model；Fig. 3 is hair according to the present utility model
The close-up schematic view of motivation chain drive system；Fig. 4 is engine chain drive system middle guide spiral shell according to the present utility model
The structural schematic diagram of bolt 10.
According to a kind of engine chain drive system of specific embodiment of the present invention comprising camshaft sprocket 1, convex
Wheel shaft chain orbit determination 2, crankshaft sprocket 3, cam shaft chains dynamic rail 4, high pressure pump sprocket 5, high-pressure pump chain orbit determination 6, high-pressure pump chain
Bar dynamic rail 7, the first transmission chain 8, the second transmission chain 9 and guide rail bolt 10；Wherein, crankshaft sprocket 3 by coaxial configuration upper layer
Sprocket wheel and lower layer's sprocket wheel are constituted；Wherein, camshaft sprocket 1 is connect by the first transmission chain 8 with lower layer's sprocket wheel of crankshaft sprocket 3；
Wherein, high pressure pump sprocket 5 is connect by the second transmission chain 9 with the upper layer sprocket wheel of crankshaft sprocket 3；Wherein, the first transmission chain 8 is installed
On cam shaft chains orbit determination 2 and cam shaft chains dynamic rail 4, and one end of cam shaft chains dynamic rail 4 offers first through hole；Its
In, the second transmission chain 9 is mounted in high-pressure pump chain orbit determination 6 and high-pressure pump chain dynamic rail 7, and the one of high-pressure pump chain dynamic rail 7
End offers the second through-hole；Wherein, guide rail bolt 10 has affixed successively first end 101, compartmented 103 and second end
104, and the one end of first end 101 far from compartmented 103 has thread segment 102；Wherein, 101 sets of the first end of guide rail bolt 10
Enter to the first through hole of cam shaft chains dynamic rail 4, and the thread segment 102 of first end 101 is tightened against on engine body, to make
Cam shaft chains dynamic rail 4 is fixed on engine body；And wherein, the second through-hole of high-pressure pump chain dynamic rail 7, which is sheathed on, leads
In the second end 104 of rail bolt 10, to make high-pressure pump chain dynamic rail 7 be fixed on engine body.
Preferably, the other end of cam shaft chains dynamic rail 4 is provided with the first stretcher 41, and the first stretcher 41 is adjusting
Save the tensioning state of the first transmission chain 8；The other end of high-pressure pump chain dynamic rail 7 is provided with the second stretcher 71, and the second tensioning
Device 71 is adjusting the tensioning state of the second transmission chain 9.
Preferably, the diameter of the compartmented 103 of guide rail bolt 10 is more than the straight of the first through hole of cam shaft chains dynamic rail 4
Diameter；The diameter of the compartmented 103 of guide rail bolt 10 is more than the diameter of the second through-hole of high-pressure pump chain dynamic rail 7.
In practical applications, crankshaft sprocket 3 is made of the upper layer sprocket wheel of coaxial configuration and lower layer's sprocket wheel, and chain drive is
Since the upper layer sprocket wheel of bent axle and lower layer's sprocket wheel, the bottom of the first transmission chain 8 and lower layer's sprocket engagement of crankshaft sprocket 3, the
The top of one transmission chain 8 is engaged with camshaft sprocket 1, to transfer torque to camshaft sprocket 1 by the first transmission chain 8；And
One end of second transmission chain 9 and the upper layer sprocket engagement of crankshaft sprocket 3, the other end and the high pressure pump sprocket 5 of the second transmission chain 9 are nibbled
It closes, to deliver torque to high pressure pump sprocket 5 by the second transmission chain 9.The both sides of first transmission chain 8 are respectively arranged with cam
Axis chain orbit determination 2 and cam shaft chains dynamic rail 4, so that the first transmission chain 8 can be in cam shaft chains orbit determination 2 and camshaft
It is driven in chain dynamic rail 4.The both sides up and down of second transmission chain 9 are respectively arranged with high-pressure pump chain orbit determination 6 and high-pressure pump chain is dynamic
Rail 7, so that the second transmission chain 9 can be driven in high-pressure pump chain orbit determination 6 and high-pressure pump chain dynamic rail 7.
Wherein, cam shaft chains orbit determination 2 and high-pressure pump chain orbit determination 6 have just fixed in the case where assembling original state, and convex
Wheel shaft chain dynamic rail 4 and high-pressure pump chain dynamic rail 7 are then fixed on by a guide rail bolt 10 on engine body, are come in detail
It says, the first end 101 of guide rail bolt 10 passes through the first through hole in cam shaft chains dynamic rail 4 and is tightened against on engine body
(i.e. the thread segment 102 of first end 101 is tightened against on engine body, and the rest part of first end 101 is then sheathed on first and leads to
In hole), since guide rail bolt 10 has compartmented 103 (diameter of compartmented 103 is more than the diameter of first through hole), so cam
Axis chain dynamic rail 4, which has been fixed, to be limited.And the second through-hole of high-pressure pump chain dynamic rail 7 is sheathed on guide rail bolt 10 at this time
In second end 104, then high-pressure pump chain dynamic rail 7 is also fixed on engine body, and is separated since guide rail bolt 10 has
Section 103 (diameter of compartmented 103 is more than the diameter of the second through-hole), so the fixed limited post of high-pressure pump chain dynamic rail 7 one.It leads
Rail bolt 10 separates cam shaft chains dynamic rail 4 and high-pressure pump chain dynamic rail 7, make this two dynamic rails in mutual movement not
Influence is will produce, ensure that the stability respectively to work.And cam shaft chains dynamic rail 4 and high-pressure pump chain dynamic rail 7 can be
It is tensioned respectively by adjusting the first stretcher 41 and the second stretcher 71 during use, to prevent the first transmission chain
8 and second transmission chain 9 wear after slippage phenomenon.
In short, the engine chain drive system of the utility model has the advantages that：
1, the engine chain drive system of the utility model, by cam shaft chains dynamic rail and high-pressure pump chain dynamic rail with one
Guide rail bolt is limited, and arrangement space is saved；
2, the engine chain drive system of the utility model, using cellular-type design, (i.e. guide rail bolt has guide rail bolt
Compartmented), cam shaft chains dynamic rail and high-pressure pump chain dynamic rail are separated on a guide rail bolt, to ensure that two
The stability that dynamic rail respectively works avoids and generates unnecessary interference.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
Many change and variations.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can realize and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (5)
1. a kind of engine chain drive system, which is characterized in that including camshaft sprocket, cam shaft chains orbit determination, crankshaft sprocket,
Cam shaft chains dynamic rail, high pressure pump sprocket, high-pressure pump chain orbit determination, high-pressure pump chain dynamic rail, the first transmission chain, the second transmission chain
And guide rail bolt；
Wherein, the crankshaft sprocket is made of the upper layer sprocket wheel of coaxial configuration and lower layer's sprocket wheel；
Wherein, the camshaft sprocket is connect by first transmission chain with lower layer's sprocket wheel of the crankshaft sprocket；
Wherein, the high pressure pump sprocket is connect by second transmission chain with the upper layer sprocket wheel of the crankshaft sprocket；
Wherein, first transmission chain is mounted in the cam shaft chains orbit determination and the cam shaft chains dynamic rail, and described
One end of cam shaft chains dynamic rail offers first through hole；
Wherein, second transmission chain is mounted in the high-pressure pump chain orbit determination and the high-pressure pump chain dynamic rail, and described
One end of high-pressure pump chain dynamic rail offers the second through-hole；
Wherein, the guide rail bolt has affixed successively first end, compartmented and second end, and the first end is far from institute
The one end for stating compartmented has thread segment；
Wherein, the first end of the guide rail bolt is inserted in the first through hole of the cam shaft chains dynamic rail, and institute
The thread segment for stating first end is tightened against on engine body, to make the cam shaft chains dynamic rail be fixed on described start
On machine body；And
Wherein, second through-hole of the high-pressure pump chain dynamic rail is sheathed in the second end of the guide rail bolt, from
And the high-pressure pump chain dynamic rail is made to be fixed on the engine body.
2. engine chain drive system according to claim 1, which is characterized in that the cam shaft chains dynamic rail it is another
End is provided with the first stretcher, and first stretcher is adjusting the tensioning state of first transmission chain.
3. engine chain drive system according to claim 1, which is characterized in that the high-pressure pump chain dynamic rail it is another
End is provided with the second stretcher, and second stretcher is adjusting the tensioning state of second transmission chain.
4. engine chain drive system according to claim 1, which is characterized in that the compartmented of the guide rail bolt
Diameter be more than the cam shaft chains dynamic rail the first through hole diameter.
5. engine chain drive system according to claim 1, which is characterized in that the compartmented of the guide rail bolt
Diameter be more than the high-pressure pump chain dynamic rail second through-hole diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820450363.9U CN208040532U (en) | 2018-04-02 | 2018-04-02 | Engine chain drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820450363.9U CN208040532U (en) | 2018-04-02 | 2018-04-02 | Engine chain drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208040532U true CN208040532U (en) | 2018-11-02 |
Family
ID=63946733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820450363.9U Active CN208040532U (en) | 2018-04-02 | 2018-04-02 | Engine chain drive system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208040532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425744A (en) * | 2018-04-02 | 2018-08-21 | 广西玉柴机器股份有限公司 | Engine chain drive system |
-
2018
- 2018-04-02 CN CN201820450363.9U patent/CN208040532U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425744A (en) * | 2018-04-02 | 2018-08-21 | 广西玉柴机器股份有限公司 | Engine chain drive system |
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