CN203570786U - Auxiliary connecting rod pin - Google Patents
Auxiliary connecting rod pin Download PDFInfo
- Publication number
- CN203570786U CN203570786U CN201320680949.1U CN201320680949U CN203570786U CN 203570786 U CN203570786 U CN 203570786U CN 201320680949 U CN201320680949 U CN 201320680949U CN 203570786 U CN203570786 U CN 203570786U
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- pin
- knuckle
- mounting hole
- connecting rod
- section
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- Expired - Fee Related
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Abstract
The utility model provides an auxiliary connecting rod pin which is used for being connected with a main connecting rod and an auxiliary connecting rod. The main connecting rod comprises a first mounting hole and a second mounting hole which are symmetrically formed in a spaced mode, the auxiliary connecting rod pin comprises a first pin segment in interference fit with the first mounting hole and a second pin segment in interference fit with the second mounting hole, the first pin segment is connected with the second pin segment, and the diameter of the second pin segment is smaller than that of the first mounting hole. According to the auxiliary connecting rod pin, due to the fact that the diameter of the second pin segment is smaller than that of the first mounting hole, when the main connecting rod and the auxiliary connecting rod are connected, the second pin segment is easily inserted into the first mounting hole and reaches the side end of the second mounting hole, under the guide effect of the second pin segment, after pressure is exerted at the end of the first pin segment, the second pin segment and the second mounting hole are conveniently and rapidly in interference fit, and the first pin segment and the first mounting hole are conveniently and rapidly in interference fit. The machining precision of the auxiliary connecting rod pin can be reduced, and the auxiliary connecting rod pin can be conveniently assembled in place.
Description
Technical field
The utility model relates to bearing pin field, especially, relates to a kind of knuckle-pin.
Background technique
As shown in Figure 1, star-like piston-engined connecting rod linkage structure comprises master connecting rod 2 and multiple slave connecting rod 3; Wherein the major part of master connecting rod 2 is directly contained on crank pin, and slave connecting rod 3 is not directly connected with crank pin, but is directly installed on the major part of master connecting rod 2, and slave connecting rod 3 is hinged by knuckle-pin 1 and master connecting rod 2.Particularly, master connecting rod 2 comprises spaced the first mounting hole and the second mounting hole, and copper bush, Spielpassung between knuckle-pin 1 and copper bush are installed between the first mounting hole and the second mounting hole conventionally.Knuckle-pin 1 is usually designed to hollow, is beneficial to and alleviates quality.Plug of the interior common installation of knuckle-pin 1, for isolating exterior environment, forms the oil pocket of a sealing, guarantees the clean free from admixture of lubricating oil in oil leab.
Knuckle-pin 1 is interference fit with the pin-and-hole of master connecting rod 2, and the outer surface of knuckle-pin 1 all the time with the inner circle wall Interference contact of the pin-and-hole of master connecting rod 2, so just cause knuckle-pin 1 when assembling to start until be fully assembled from entering pin-and-hole, all need constantly knuckle-pin 1 to be knocked, assembling is inconvenient.
Model utility content
The utility model object is to provide a kind of knuckle-pin, to solve the pin-and-hole of existing knuckle-pin and master connecting rod, assembles inconvenient technical problem.
For achieving the above object, according to the utility model, provide a kind of knuckle-pin, be used for connecting master connecting rod and slave connecting rod, master connecting rod comprises symmetrically arranged the first mounting hole in interval and the second mounting hole, knuckle-pin comprise with the first pin section of the first mounting hole interference fit and with the second pin section of the second mounting hole interference fit, the first pin section and the second pin section are connected and the second diameter of selling section is less than the diameter of the first mounting hole.
Further, knuckle-pin is hollow pin, along the circumferential direction has multiple oilholes on the periphery wall of knuckle-pin.
Further, multiple oilholes are along the setting of staggering of the centerline direction of knuckle-pin.
Further, on the periphery wall of knuckle-pin and the orifice edge that is positioned at oilhole have oil groove.
Further, the degree of depth of oil groove is 0.05mm to 0.15mm.
Further, the periphery wall of knuckle-pin also has the oil leab communicating with the oil duct of master connecting rod.
Further, the end of the first pin section and/or the second pin section is provided with positive stop lug boss.
Further, the outer periphery of the end of the second pin section are cone table shape.
The utlity model has following beneficial effect:
According to knuckle-pin of the present utility model, because the diameter of the second pin section is less than the diameter of the first mounting hole, therefore, when connecting master connecting rod and slave connecting rod, the second pin section inserts and arrives a side for the second mounting hole easily from the first mounting hole; Under the leading role of the second pin section, after using again and exerting pressure to the end of the first pin section, the second pin section and the second mounting hole interference fit, the first pin section and the first mounting hole interference fit can be easily made quickly, and the machining accuracy of knuckle-pin, convenient for assembly putting in place can be reduced.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to accompanying drawings, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of piston-engined bar linkage structure of the present utility model;
Fig. 2 is the structural representation of the knuckle-pin of the utility model preferred embodiment;
Fig. 3 is the A-A cross-sectional schematic shown in Fig. 2;
Fig. 4 is the B-B cross-sectional schematic shown in Fig. 3;
Fig. 5 is the enlarged diagram at the I place shown in Fig. 4; And
Fig. 6 is the assembling schematic diagram of knuckle-pin of the present utility model.
Description of reference numerals:
10, the first pin section; 20, the second pin section; 11, oilhole; 12, oil groove; 13, oil leab; 14, positive stop lug boss; 1, knuckle-pin; 2, master connecting rod; 21, oil duct; 3, slave connecting rod; 4, copper bush; 5, plug.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 2 and Fig. 3, preferred embodiment of the present utility model provides a kind of knuckle-pin, be used for connecting master connecting rod 2 and slave connecting rod 3, master connecting rod 2 comprises symmetrically arranged the first mounting hole in interval and the second mounting hole, secondary connecting pin comprises that and the second pin section 20 is connected and the diameter of the second pin sections 20 is less than the diameter of the first mounting hole with the first pin section 10 of the first mounting hole interference fit with the second pin section 20, the first pin sections 10 of the second mounting hole interference fit.According to knuckle-pin of the present utility model, because the diameter of the second pin section 20 is less than the diameter of the first mounting hole, therefore, when connecting master connecting rod 2 and slave connecting rod 3, the second pin section 20 inserts and arrives the side of the second mounting hole easily from the first mounting hole; Under the leading role of the second pin section 20, after using again and exerting pressure to the end of the first pin section 10, can easily make quickly the second pin section 20 and the second mounting hole interference fit, the first pin section 10 and the first mounting hole interference fit, and can reduce the machining accuracy of knuckle-pin 1, convenient for assembly putting in place.
Particularly, referring to Fig. 2 and Fig. 3, the first pin section 10 is connected with the second pin section 20, and preferably, the first pin section 10 and the second pin section 20 one-body molded designs, to increase the working strength of knuckle-pin 1.In other mode of execution, the first pin section 10 can also wait other modes to be connected by welding with the second pin section 20.The first pin section 10 and the first mounting hole interference fit, the second pin section 20 and the second mounting hole interference fit, when design and installation, guarantee that the magnitude of interference at above-mentioned two places is consistent as best one can.In order to facilitate the second pin section 20 can promptly pass into the first mounting hole, coordinate with the second mounting hole, the diameter of the second pin section 20 is less than the diameter of the first mounting hole again, and the diameter of the second pin section 20 is also less than the diameter of the first pin section 10 so.After the second pin section 20 is inserted in the first mounting hole, can play the effect of guiding,, after exerting pressure to the end of the first pin section 10, the first pin section 10 and the first mounting hole, the second pin section 20 and the second mounting hole centering rapidly, be seated rapidly.
Incorporated by reference to referring to Fig. 4 to Fig. 6, in order to alleviate the weight of knuckle-pin 1, knuckle-pin 1 is hollow pin.The periphery wall of knuckle-pin 1 has the oil leab 13 communicating with the oil duct 21 of master connecting rod 2, and lubricant oil enters into oil leab 13 from the oil duct 21 of master connecting rod 2, and enters into the hollow parts of knuckle-pin 1.In the present embodiment, hollow parts is installed plug 5, is used to form the oil pocket of a sealing, totally clean to guarantee the lubricating oil of 13 li of oil leabs, does not contain metal impurities; For the lubricating oil in oil leab 13 can enter in the oil pocket of sealing smoothly, oil leab 13 is obliquely installed, oil leab 13 is communicated with oil pocket.On the periphery wall of knuckle-pin 1, along the circumferential direction also have multiple oilholes 11, so that more lubricating oil can flow to from the hollow parts of knuckle-pin 1 periphery wall of knuckle-pin 1, to lubricate the contact surface of knuckle-pin 1 and copper bush 4, increase the working life of knuckle-pin 1.Oilhole 11 can be multiple, for make lubricant oil can flow to knuckle-pin 1 periphery wall each position and avoid the stress of knuckle-pin 1 to concentrate, can be by oilhole 11 scattering devices, multiple oilholes 11 are along the setting of staggering of the centerline direction of knuckle-pin 1.Preferably, on the periphery wall of the knuckle-pin 1 and orifice edge position that is positioned at oilhole 11 has oil groove 12, with respect to the structure that only has oilhole 11, in the edge in oilhole 11 apertures, drives oil groove 12, can store more lubricating oil, is beneficial to lubricated.Usually, the degree of depth of oil groove 12 is 0.05mm to 0.15mm, and the shape of oil groove 12 can be set to rectangle, circle etc.In other mode of execution, on the periphery wall of knuckle-pin 1, also can not have oil groove 12.
In conjunction with referring to Fig. 2 and Fig. 4, in order to limit moving axially and rotating of knuckle-pin 1, end in the first pin section 10 and/or the second pin section 20 is provided with positive stop lug boss 14, and positive stop lug boss 14 can be the Semicircular structure of the end of protrusion the first pin section 10 and/or the second pin section 20.
Referring to Fig. 2, preferably, the outer periphery of the second pin section 20 ends are cone table shape, with when assembling knuckle-pin 1, the second pin section 20 is through after the first mounting hole, and the cone table shape part of the second pin section 20 ends can be inserted in the second mounting hole, is convenient to the second pin section 20 to be inserted in the second mounting hole.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
According to knuckle-pin of the present utility model, because the diameter of the second pin section 20 is less than the diameter of the first mounting hole, therefore, when connecting master connecting rod 2 and slave connecting rod 3, the second pin section 20 inserts and arrives the side of the second mounting hole easily from the first mounting hole; Under the leading role of the second pin section 20, after using again and exerting pressure to the end of the first pin section 10, can easily make quickly the second pin section 20 and the second mounting hole interference fit, the first pin section 10 and the first mounting hole interference fit, and can reduce the machining accuracy of knuckle-pin 1, convenient for assembly putting in place.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a knuckle-pin, for connecting master connecting rod (2) and slave connecting rod (3), described master connecting rod (2) comprises asks every symmetrically arranged the first mounting hole and the second mounting hole, it is characterized in that,
Described knuckle-pin (1) comprises with the first pin section (10) of described the first mounting hole interference fit with second of described the second mounting hole interference fit sells section (20),
Described the first pin section (10) and described the second pin section (20) are connected and the described second diameter of selling section (20) is less than the diameter of described the first mounting hole.
2. knuckle-pin according to claim 1, is characterized in that,
Described knuckle-pin (1) is hollow pin, along the circumferential direction has multiple oilholes (11) on the periphery wall of described knuckle-pin (1).
3. knuckle-pin according to claim 2, is characterized in that,
Multiple described oilholes (11) are along the setting of staggering of the centerline direction of described knuckle-pin (1).
4. knuckle-pin according to claim 3, is characterized in that,
On the periphery wall of described knuckle-pin (1) and the orifice edge that is positioned at described oilhole (11) have oil groove (12).
5. knuckle-pin according to claim 4, is characterized in that,
The degree of depth of described oil groove (12) is 0.05mm to 0.15mm.
6. knuckle-pin according to claim 1, is characterized in that,
The periphery wall of described knuckle-pin (1) also has the oil leab (13) communicating with the oil duct (21) of described master connecting rod (2).
7. knuckle-pin according to claim 1, is characterized in that,
The end of described the first pin section (10) and/or described the second pin section (20) is provided with positive stop lug boss (14).
8. according to the knuckle-pin described in claim 1 to 7 any one, it is characterized in that,
The outer periphery of the end of described the second pin section (20) are cone table shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680949.1U CN203570786U (en) | 2013-10-31 | 2013-10-31 | Auxiliary connecting rod pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680949.1U CN203570786U (en) | 2013-10-31 | 2013-10-31 | Auxiliary connecting rod pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570786U true CN203570786U (en) | 2014-04-30 |
Family
ID=50538518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320680949.1U Expired - Fee Related CN203570786U (en) | 2013-10-31 | 2013-10-31 | Auxiliary connecting rod pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570786U (en) |
-
2013
- 2013-10-31 CN CN201320680949.1U patent/CN203570786U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
|
| 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: 20140430 Termination date: 20201031 |