CN216200431U - Cold extrusion high accuracy gasoline engine gudgeon pin - Google Patents
Cold extrusion high accuracy gasoline engine gudgeon pin Download PDFInfo
- Publication number
- CN216200431U CN216200431U CN202121913667.2U CN202121913667U CN216200431U CN 216200431 U CN216200431 U CN 216200431U CN 202121913667 U CN202121913667 U CN 202121913667U CN 216200431 U CN216200431 U CN 216200431U
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- piston pin
- pin body
- piston
- gasoline engine
- groove
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- Expired - Fee Related
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Abstract
The utility model provides a cold-extrusion high-precision gasoline engine piston pin, which relates to the technical field of piston pins and comprises a piston pin body, wherein fastening structures are arranged on the outer surfaces of two sides of the piston pin body, and an embedded clamping groove is formed in the fastening structures. The piston pin body and the piston can be fastened through the arrangement of the outer rubber extrusion sleeve, so that the stability in connection can be improved, meanwhile, when the piston pin body is used, the buffer can be arranged between the piston pin body and the piston, so that the abrasion between the piston pin body and the piston is reduced, the service life of the piston pin body is prolonged, meanwhile, the chamfer is guided through the side edge and is matched with the installation chamfer, the deformation range of the outer rubber extrusion sleeve after being extruded is guided when the piston pin body is installed, so that the protection range of the piston pin body is enlarged, and the limit between the outer rubber extrusion sleeve and the inner matching hole is limited through the arrangement of the side edge limit lug and the inner matching hole when the piston pin body is installed.
Description
Technical Field
The utility model relates to the technical field of piston pins, in particular to a cold-extrusion high-precision gasoline engine piston pin.
Background
The wrist pin is a cylindrical pin mounted on the skirt of the piston. The middle part of the piston pin penetrates through a small end hole of the connecting rod to be used for connecting the piston and the connecting rod, the function of the piston pin is to transmit the gas acting force born by the piston to the connecting rod or enable the small end of the connecting rod to drive the piston to move together, and in order to reduce weight, the piston pin is generally made of high-quality alloy steel and is made into a hollow shape.
In the prior art, for example, Chinese patent numbers are: CN 213331305U's "piston pin", it includes cylindric piston pin main part, the piston pin main part in be provided with the annular jump ring of laminating mutually with piston pin main part inner wall, the piston pin main part in still be provided with the spacing reed of two symmetry settings, spacing reed periphery wall and piston pin main part inner wall laminate mutually, the position of two tip of spacing reed orientation annular jump ring be equipped with the trip respectively, two tip of annular jump ring be equipped with the catching groove respectively, annular jump ring and spacing reed be connected through trip and catching groove, the annular jump ring on still be equipped with spacing hole respectively, spacing hole set up inside annular jump ring, the piston pin still include a pair of spacer pin, the spacer pin fix between piston pin main part and annular jump ring. The utility model increases the strength of the piston pin, reduces the bending deformation and the elliptical deformation generated during the work, and simultaneously enhances the stability of the internal structure of the main body of the piston pin.
However, when the piston pin is used, the production difficulty is high, and when the piston pin is used, due to the back-and-forth pushing of the push rod, the gap between the piston pin and the piston is easy to be larger and larger, so that the piston is easy to move and deviate, and the piston pin and the piston are easy to damage due to impact before the piston pin and the piston, so that the piston pin is inconvenient to use for a long time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art, and provides a cold extrusion high-precision gasoline engine piston pin.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a cold extrusion high accuracy gasoline engine piston pin, includes the piston pin body, the surface of the both sides of piston pin body is provided with fastening structure, fastening structure's inside includes gomphosis joint groove, gomphosis joint groove is seted up in the both sides of piston pin body, the inside fixed clamping in gomphosis joint groove is provided with outer rubber extrusion cover, the outer fringe department of one side at the middle part of piston pin body is kept away from in gomphosis joint groove is provided with the side and leads to the chamfer, the inner edge department at the middle part that piston pin body was kept away from to outer rubber extrusion cover is provided with cooperation installation chamfer, cooperation installation chamfer and side lead to the joint between the chamfer, installation draw-in groove has been seted up to the inside of outer rubber extrusion cover, the joint between installation draw-in groove and the gomphosis joint groove.
Preferably, the inside fixedly connected with side limit lug in gomphosis joint groove, the inside of outer rubber extrusion cover is seted up and is inlayed the hole that closes, the joint between side limit lug and the side limit lug.
Preferably, the outer edges of the two sides of the piston pin body are provided with side chamfers.
Preferably, an inner lightening hole is formed in the middle of the piston pin body, and a supporting baffle is fixedly connected inside the inner lightening hole.
Preferably, a weight-reducing support groove is formed between the support baffle and the inner surface of the piston pin body.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. according to the utility model, the piston pin body and the piston can be fastened through the arrangement of the outer rubber extrusion sleeve, so that the stability in connection can be increased, meanwhile, when the piston pin body is used, the buffer can be carried out between the piston pin body and the piston, so that the abrasion between the piston pin body and the piston is reduced, the service life of the piston pin body is prolonged, meanwhile, the chamfer is guided to the chamfer through the side edge and is matched with the installation chamfer, when the piston pin body is installed, the deformation range of the outer rubber extrusion sleeve after being extruded is guided, so that the protection range of the piston pin body is increased, then, through the arrangement of the side edge limiting lug and the inner matching hole, the outer rubber extrusion sleeve and the inner matching hole are limited when the piston pin body is installed, and therefore, the outer rubber extrusion sleeve is prevented from falling off when the piston pin body is installed.
2. According to the piston pin body, the supporting baffle and the weight-reducing supporting grooves can be directly produced by polishing and drilling during production, so that the production difficulty can be reduced, meanwhile, the supporting strength of the piston pin body during use can be increased through the arrangement of the supporting baffle, the piston pin body is prevented from being deformed during use, the use strength of the piston pin body is improved through the increase of smaller weight, and the practicability of the piston pin body can be increased.
Drawings
FIG. 1 is a schematic perspective view of a piston pin of a cold-extruded high-precision gasoline engine according to the present invention;
FIG. 2 is an exploded view of a piston pin of a cold-extruded high-precision gasoline engine according to the present invention;
FIG. 3 is a schematic cross-sectional structure diagram of a cold-extruded high-precision gasoline engine piston pin according to the present invention.
Illustration of the drawings:
1. a piston pin body; 11. an inner lightening hole; 12. a support baffle; 13. a weight-reducing support groove; 14. chamfering the side edges;
2. a fastening structure; 21. an outer rubber extrusion sleeve; 22. embedding the clamping groove; 23. a side limit bump; 24. the side edge is led to the chamfer; 25. embedding a combining hole; 26. installing a clamping groove; 27. and fitting and mounting the chamfer.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
The following concrete setting and function of the fastening structure 2 are specifically described, when in use, the piston pin body 1 and the piston can be fastened just like those through the setting of the outer rubber extrusion sleeve 21, so that the stability in connection can be increased, meanwhile, when the piston pin body 1 is in use, the piston pin body 1 and the piston can be buffered, so that the abrasion between the piston pin body 1 and the piston is reduced, so that the service life of the piston pin body 1 is prolonged, meanwhile, the arrangement of the chamfer 24 and the matched installation chamfer 27 is guided through the side edge, so that when in installation, the deformation range of the outer rubber extrusion sleeve 21 after being extruded is guided, so that the protection range of the piston pin body 1 is increased, and then, through the arrangement of the side edge limit lug 23 and the embedded engaging hole 25, the outer rubber extrusion sleeve 21 and the embedded engaging hole 25 are limited when in installation, thereby preventing the outer rubber packing 21 from falling off when mounted.
As shown in fig. 1-3, the outer edges of the two sides of the piston pin body 1 are provided with side chamfers 14, the middle of the piston pin body 1 is provided with an inner lightening hole 11, a supporting baffle plate 12 is fixedly connected inside the inner lightening hole 11, and a lightening supporting groove 13 is formed between the supporting baffle plate 12 and the inner surface of the piston pin body 1.
The effect that its whole piston pin body 1 reaches does, through supporting baffle 12 and the setting that subtracts heavy supporting groove 13, when production, can be directly through polishing and drilling, produce supporting baffle 12 and subtract heavy supporting groove 13, thereby can reduce the production degree of difficulty, simultaneously through supporting baffle 12's setting, support intensity when multiplicable piston pin body 1 uses, thereby prevent that piston pin body 1 from producing deformation when using, thereby through increasing less weight, promote piston pin body 1's use strength, thereby can increase piston pin body 1's practicality.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes by using the technical contents disclosed in the above description to other fields, but any simple modification, equivalent change and change made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a cold extrusion high accuracy gasoline engine piston pin, includes piston pin body (1), its characterized in that: the outer surfaces of two sides of the piston pin body (1) are provided with fastening structures (2), the fastening structure (2) comprises an embedded clamping groove (22) inside, the embedded clamping groove (22) is arranged on two sides of the piston pin body (1), the inner part of the embedding clamping groove (22) is fixedly clamped with an outer rubber extrusion sleeve (21), the outer edge of one side of the embedding clamping groove (22) far away from the middle part of the piston pin body (1) is provided with a side edge leading chamfer (24), a matched installation chamfer (27) is arranged at the inner edge of the middle part of the outer rubber extrusion sleeve (21) far away from the piston pin body (1), the matched mounting chamfer (27) is clamped with the side edge guide chamfer (24), the inside of outer rubber extrusion cover (21) has seted up installation draw-in groove (26), joint between installation draw-in groove (26) and gomphosis joint groove (22).
2. A cold-extruded high-precision gasoline engine piston pin according to claim 1, characterized in that: the inside fixedly connected with side limit lug (23) of gomphosis joint groove (22), embedded hole (25) have been seted up to the inside of outer rubber extrusion cover (21), the joint between side limit lug (23) and side limit lug (23).
3. A cold-extruded high-precision gasoline engine piston pin according to claim 1, characterized in that: and side edge chamfers (14) are arranged at the outer edges of the two sides of the piston pin body (1).
4. A cold-extruded high-precision gasoline engine piston pin according to claim 1, characterized in that: an inner lightening hole (11) is formed in the middle of the piston pin body (1), and a supporting baffle plate (12) is fixedly connected inside the inner lightening hole (11).
5. A cold extrusion high precision gasoline engine piston pin according to claim 4, characterized in that: and a weight-reducing support groove (13) is formed between the support baffle (12) and the inner surface of the piston pin body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121913667.2U CN216200431U (en) | 2021-08-16 | 2021-08-16 | Cold extrusion high accuracy gasoline engine gudgeon pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121913667.2U CN216200431U (en) | 2021-08-16 | 2021-08-16 | Cold extrusion high accuracy gasoline engine gudgeon pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216200431U true CN216200431U (en) | 2022-04-05 |
Family
ID=80915536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121913667.2U Expired - Fee Related CN216200431U (en) | 2021-08-16 | 2021-08-16 | Cold extrusion high accuracy gasoline engine gudgeon pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216200431U (en) |
-
2021
- 2021-08-16 CN CN202121913667.2U patent/CN216200431U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220405 |