CN207686777U - A kind of engine timing upper rail - Google Patents
A kind of engine timing upper rail Download PDFInfo
- Publication number
- CN207686777U CN207686777U CN201721770848.8U CN201721770848U CN207686777U CN 207686777 U CN207686777 U CN 207686777U CN 201721770848 U CN201721770848 U CN 201721770848U CN 207686777 U CN207686777 U CN 207686777U
- Authority
- CN
- China
- Prior art keywords
- card slot
- upper rail
- cylinder cap
- chain
- guide rail
- 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
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model discloses a kind of engine timing upper rails, including guide rail body, are equipped with card slot at the both ends of guide rail body, guide rail body is connected to by card slot on cylinder cap.The inner surface of card slot is provided with drafting angle, and the part being connect with card slot on cylinder cap is equipped with the drafting angle adaptable with the inner surface of card slot.The setting of drafting angle can be such that upper rail is stuck on cylinder body securely, play the role of preventing upper rail from loosening from cylinder body.It is equipped with the opening for making cylinder cap be caught in card slot one end, baffle is equipped on the side where the other end in card slot；After cylinder cap is caught in the card slot in guide rail body, cylinder cap end face between card slot side be equipped with gap；In this way when engine operates, chain can be with the position of automatic adjusument upper rail so that the wear point of chain and upper rail constantly changes, and can not only eliminate the concussion of chain, it is also prevented from upper rail certain point to wear always with chain, increases the service life of upper rail.
Description
Technical field
The utility model belongs to technical field of engines, more particularly to engine timing chain system, and in particular to Yi Zhongfa
Motivation timing upper rail.
Background technology
In the machinery industries such as automobile making, internal combustion engine, chain drive timing system has high transmission accuracy, and stability is good,
The advantages that maintenance-free, is widely used within the engine.Timing chain is sent out in high-speed motion or in engine to turn
When speed mutation, the chain between camshaft will appear larger concussion, or even jump tooth, the stability of timing system will by compared with
Big impact.Therefore, in timing system development process, design arrangement upper guide rail structure plays pole to the stability of timing system
Its important role.Existing engine timing upper rail includes upper rail holder and upper rail panel, not only occupied space
It is larger, and be that rail brackets are fixed on cylinder cap by bolt.The contact surface of upper rail and cylinder cap in chain operation
Increase and cylinder cap always wear the same position of guide rail, can accelerate the abrasion of guide rail in this way, reduce the service life of guide rail.
Utility model content
The purpose of this utility model is to provide a kind of simple in structure, elimination chain concussion, reduction way rub and uses
Convenient engine timing upper rail, for solving in the prior art, engine timing upper rail occupied space is big, quick abrasion,
The short problem of service life.
To achieve the above object, the technical solution of the utility model is：A kind of engine timing upper rail, including guide rail sheet
The both ends of body, the guide rail body are equipped with card slot, and the guide rail body is connected to by the card slot on cylinder cap.
Further, the inner surface of the card slot is provided with drafting angle.
Further, the part being connect with the card slot on the cylinder cap, which is equipped with, to be adapted with the inner surface of the card slot
Drafting angle.
Further, after the cylinder cap is caught in the card slot, cylinder cap end face to card slot side is equipped with gap.
Further, described card slot one end, which is equipped with, makes the opening that the cylinder cap is caught in, where the other end of the card slot
Side is equipped with baffle.
Further, the drafting angle on the drafting angle and cylinder cap of the card slot inner surface is 4 °.
The advantages of using technical solutions of the utility model for：
1. card slot is arranged at the both ends of upper rail ontology, guide rail body is connected to by card slot on cylinder cap, and bolt is reduced
Use, solve with bolt and upper rail be fixed on to occupied space on cylinder cap is big, upper rail problem easy to wear；
After 2. cylinder cap is caught in card slot, in cylinder body end face to being equipped with gap between card slot side, in this way when engine operates,
Chain can be with the position of automatic adjusument upper rail so that the wear point of chain and upper rail constantly changes, to prevent leading
Rail certain point is worn always with chain, increases the service life of upper rail；
3. drafting angle is arranged in the inner surface in card slot, the draft angle being adapted with card slot inner surface also is provided on cylinder cap
Degree, can be such that upper rail is stuck on cylinder body securely, play the role of preventing upper rail from loosening from cylinder body.
Description of the drawings
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments：
Fig. 1 is the utility model overall structure diagram.
Fig. 2 is the utility model upper rail and cylinder cap, chain assembling schematic diagram.
Fig. 3 is sectional view of the view on the directions A-A shown in Fig. 2.
Fig. 4 is sectional view of the view on the directions B-B shown in Fig. 2.
Label in above-mentioned figure is respectively：1. guide rail body；11. card slot；12. baffle；13. card slot side；14. opening；
2. cylinder cap；21. cylinder cap end face；3. chain；4. gap.
Specific implementation mode
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of engine timing upper rail, including guide rail body 1, in guide rail body 1
Both ends be equipped with card slot 11, guide rail body 1 is connected to by card slot 11 on cylinder cap 2；First, reduce the use of bolt, second is that,
It solves with bolt and upper rail is fixed on to occupied space on cylinder cap is big, upper rail problem easy to wear.
Preferably, the inner surface of the card slot 11 of above-mentioned upper rail is provided with drafting angle, connects with card slot 11 on cylinder cap 2
The part connect is equipped with the drafting angle adaptable with the inner surface of card slot 11；The setting of drafting angle can make upper rail securely
It is stuck on cylinder body, plays the role of preventing upper rail from loosening from cylinder body.Scheme is selected in the utility model, in card slot 11
Drafting angle on the drafting angle and cylinder cap 2 on surface is 4 °, as shown in Figure 3.
Preferably, the opening 14 for making cylinder cap 2 be caught in, the side where the other end of card slot 11 are equipped in 11 one end of card slot
It is equipped with baffle 12；After cylinder cap 2 is caught in the card slot 11 in guide rail body 1, cylinder cap end face 21 between card slot side 13 between being equipped with
Gap 4, as shown in Figure 4.In this way when engine operates, chain 3 can be with the position of automatic adjusument upper rail so that chain 3 with
The wear point of upper rail constantly changes, and can not only eliminate the concussion of chain 3, is also prevented from upper rail certain point and chain 3
It wears always, increases the service life of upper rail.
The utility model is exemplarily described above in conjunction with attached drawing, it is clear that the utility model specific implementation not by
The limitation of aforesaid way, if the improvement of the various unsubstantialities of technical solutions of the utility model progress is used, or without changing
Directly apply to other occasions by the design of the utility model and technical solution, the scope of protection of the utility model it
It is interior.
Claims (6)
1. a kind of engine timing upper rail, including guide rail body (1), it is characterised in that：The both ends of the guide rail body (1) are set
There are card slot (11), the guide rail body (1) to be connected on cylinder cap (2) by the card slot (11).
2. a kind of engine timing upper rail as described in claim 1, it is characterised in that：Inner surface in the card slot (11)
It is provided with drafting angle.
3. a kind of engine timing upper rail as described in claim 1, it is characterised in that：On the cylinder cap (2) with the card
The part of slot (11) connection is equipped with the drafting angle adaptable with the inner surface of the card slot (11).
4. a kind of engine timing upper rail as described in claims 1 to 3 any one, it is characterised in that：The cylinder cap (2)
After being caught in the card slot (11), cylinder cap end face (21) to card slot side (13) are equipped with gap (4).
5. a kind of engine timing upper rail as claimed in claim 4, it is characterised in that：Described card slot (11) one end, which is equipped with, to be made
The opening (14) that the cylinder cap (2) is caught in, the side where the other end of the card slot (11) are equipped with baffle (12).
6. a kind of engine timing upper rail as claimed in claim 2 or claim 3, it is characterised in that：Card slot (11) inner surface
Drafting angle and cylinder cap (2) on drafting angle be 4 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721770848.8U CN207686777U (en) | 2017-12-18 | 2017-12-18 | A kind of engine timing upper rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721770848.8U CN207686777U (en) | 2017-12-18 | 2017-12-18 | A kind of engine timing upper rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207686777U true CN207686777U (en) | 2018-08-03 |
Family
ID=62998224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721770848.8U Active CN207686777U (en) | 2017-12-18 | 2017-12-18 | A kind of engine timing upper rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207686777U (en) |
-
2017
- 2017-12-18 CN CN201721770848.8U patent/CN207686777U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207686777U (en) | A kind of engine timing upper rail | |
| CN203189668U (en) | Duplex toothed rail wheel set used for coal mining machine | |
| CN201326649Y (en) | Novel improvement on sliding bearing sealing | |
| CN202493612U (en) | Overrun clutch spring location device | |
| CN202510538U (en) | Connecting rod with high lubricating property and engine of the connecting rod | |
| CN203614148U (en) | Diesel engine cam shaft | |
| CN207161668U (en) | A kind of gear | |
| CN206468679U (en) | A kind of Diesel engine crank assemblby | |
| CN201560814U (en) | Positioning structure of rocker arm shaft for underneath cam type engine | |
| CN201493461U (en) | Transmission device for roller way of continuous caster | |
| CN202280728U (en) | Engine connecting rod | |
| CN206766939U (en) | One kind improves double-speed chain | |
| CN210371893U (en) | Chain-type transmission cam transmission mechanism | |
| CN209614276U (en) | A kind of main shaft for cutting machine | |
| CN206221613U (en) | A kind of spline tooth with oil groove | |
| CN206487849U (en) | A kind of mechanical gear of anti-disconnection | |
| CN205876971U (en) | Hypervelocity double -lip seal angular contact ball bearing | |
| CN204852202U (en) | Timing chain tight arm structure that rises | |
| CN203081526U (en) | Novel engine timing chain lubricating oil circuit structure | |
| CN204900525U (en) | Rocking arm bearing for automobile engine | |
| CN102997022A (en) | Self-lubricating structure of oil pump | |
| CN202971534U (en) | Idler shaft with lubricating function | |
| CN208281072U (en) | A kind of cylinder cap camshaft hole structure | |
| CN211809934U (en) | Drag axle | |
| CN201952566U (en) | Structure for preventing oil leakage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |