CN203266572U - Crankshaft positioning structure when timing system is assembled - Google Patents
Crankshaft positioning structure when timing system is assembled Download PDFInfo
- Publication number
- CN203266572U CN203266572U CN 201320298935 CN201320298935U CN203266572U CN 203266572 U CN203266572 U CN 203266572U CN 201320298935 CN201320298935 CN 201320298935 CN 201320298935 U CN201320298935 U CN 201320298935U CN 203266572 U CN203266572 U CN 203266572U
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- CN
- China
- Prior art keywords
- timing system
- positioning
- crankshaft
- bent axle
- cylinder body
- 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.)
- Expired - Lifetime
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a crankshaft positioning structure when a timing system is assembled, and belongs to the technical field of engine assembly. The crankshaft positioning structure comprises a cylinder body, a crankshaft installed inside the cylinder body and positioning tools used for positioning the crankshaft. Positioning holes with threads are formed in the two sides of the cylinder body, and the positioning tools penetrate through the positioning holes and then abut against the crankshaft. The crankshaft positioning structure achieves the positioning of the crankshaft in the assembly process of the timing system of an engine without key and pin transmission, ensures the correctness of the timing system, achieves quick installation of the timing system, has the advantages of being low in cost and accurate in positioning, and is suitable for trial-manufacturing and production procedures of all engines.
Description
Technical field
The utility model relates to the engine assembly technical field, the bent axle location structure when being specifically related to a kind of timing system assembling.
Background technology
When the engine timing system without key, finger setting transmission assembles, bent axle and other related accessories need to be fixed on a certain ad-hoc location (being generally a cylinder top dead centre), then assemble timing chain, tighten one by one at last the sprocket wheel set bolt.Bent axle location structure when therefore needing a kind of timing system assembling of design is fixed on bent axle on the ad-hoc location of cylinder body.
The utility model content
The purpose of this utility model is exactly for the problems referred to above, the bent axle location structure when a kind of timing system assembling is provided.
The technical solution adopted in the utility model is: it comprises cylinder body, be arranged on the bent axle in cylinder body and be used for the orientation tool of location bent axle, and described cylinder body both sides have screwed locating hole, and described orientation tool withstands bent axle after passing locating hole.
Further, described orientation tool is made of bolt head and screwed screw rod.
Further, be provided with limited step between the bolt head of described orientation tool and screw rod, the outer face of described locating hole is provided with the first locating surface, and described limited step withstands the first locating surface.
The utility model has been realized the location of bent axle in the assembling process of the engine timing system that does not adopt key, pin to transmit, and guarantees that timing system is correct, and Fast Installation has a cost low, and the advantage that the location is accurate is applicable to trial-production and the production process of all engines.
Description of drawings
Fig. 1 is the utility model scheme of installation;
Fig. 2 is schematic diagram after the utility model installation.
In figure: 1-cylinder body, 2-bent axle, 3-locating hole, the 4-the first locating surface, 5-orientation tool (5.1-bolt head, 5.2-screw rod, 5.3-limited step).
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, is convenient to be well understood to the utility model, but they do not consist of restriction to the utility model.
As shown in Figure 1 and Figure 2, the utility model comprises cylinder body 1, be arranged on the bent axle 2 in cylinder body 1 and be used for the orientation tool 5 of location bent axle 2, described cylinder body 1 both sides have screwed locating hole 3, described orientation tool 5 is made of bolt head 5.1 and screwed screw rod 5.2, and described orientation tool 5 withstands bent axle 2 after passing locating hole 3.Be provided with limited step 5.3 between the bolt head 5.1 of described orientation tool 5 and screw rod 5.2, the outer face of described locating hole 3 is provided with the first locating surface 4, and described limited step 5.3 withstands the first locating surface 4.
As shown in Figure 1, before the assembling timing system, bent axle 2 has been installed in cylinder body 1, and bent axle 2 is rotated near a cylinder top dead center position; Then respectively two orientation tools 5 are screwed in the locating hole 3 of cylinder body 1 both sides and withstand bent axle 2, and tighten, this moment, orientation tool 5 was close to cylinder body 1 both sides, and the limited step 5.3 on orientation tool 5 withstands the first locating surface 4 on cylinder body 1 simultaneously; This moment, bent axle 2 was positioned at a cylinder top dead center position, while stationary cam axle, and the annexes such as trunnion shaft are positioned at the tram, then assemble chain and tighten sprocket wheel, and the timing chain system assembling is complete; Then screw out two orientation tools 5, and with the locating hole 3 on the screw plug sealed cylinder block 1 that scribbles fluid sealant.
The content that this specification is not described in detail belongs to the known prior art of this area professional and technical personnel.
Claims (3)
1. the bent axle location structure a when timing system assembles, it comprises cylinder body (1), be arranged on the bent axle (2) in cylinder body (1) and be used for the orientation tool (5) of location bent axle (2), it is characterized in that: described cylinder body (1) both sides have screwed locating hole (3), and described orientation tool (5) withstands bent axle (2) after passing locating hole (3).
2. the bent axle location structure when a kind of timing system according to claim 1 assembles is characterized in that: described orientation tool (5) is made of bolt head (5.1) and screwed screw rod (5.2).
3. the bent axle location structure when a kind of timing system according to claim 2 assembles, it is characterized in that: be provided with limited step (5.3) between the bolt head (5.1) of described orientation tool (5) and screw rod (5.2), the outer face of described locating hole (3) is provided with the first locating surface (4), and described limited step (5.3) withstands the first locating surface (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320298935 CN203266572U (en) | 2013-05-28 | 2013-05-28 | Crankshaft positioning structure when timing system is assembled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320298935 CN203266572U (en) | 2013-05-28 | 2013-05-28 | Crankshaft positioning structure when timing system is assembled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203266572U true CN203266572U (en) | 2013-11-06 |
Family
ID=49497058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320298935 Expired - Lifetime CN203266572U (en) | 2013-05-28 | 2013-05-28 | Crankshaft positioning structure when timing system is assembled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203266572U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025575A (en) * | 2020-08-18 | 2020-12-04 | 昆明云内动力股份有限公司 | Engine crankshaft timing positioning structure and positioning method |
| CN114473932A (en) * | 2022-03-28 | 2022-05-13 | 江铃汽车股份有限公司 | Assembly positioning tool and assembly method for timing chain system of double overhead camshaft engine |
-
2013
- 2013-05-28 CN CN 201320298935 patent/CN203266572U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025575A (en) * | 2020-08-18 | 2020-12-04 | 昆明云内动力股份有限公司 | Engine crankshaft timing positioning structure and positioning method |
| CN114473932A (en) * | 2022-03-28 | 2022-05-13 | 江铃汽车股份有限公司 | Assembly positioning tool and assembly method for timing chain system of double overhead camshaft engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |