CN201953799U - Self-positioning connecting rod - Google Patents
Self-positioning connecting rod Download PDFInfo
- Publication number
- CN201953799U CN201953799U CN2011200289795U CN201120028979U CN201953799U CN 201953799 U CN201953799 U CN 201953799U CN 2011200289795 U CN2011200289795 U CN 2011200289795U CN 201120028979 U CN201120028979 U CN 201120028979U CN 201953799 U CN201953799 U CN 201953799U
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- CN
- China
- Prior art keywords
- connecting rod
- crank
- locating slot
- junction plane
- combining surface
- 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 discloses a self-positioning connecting rod, which comprises a connecting rod body, wherein a crank mounting seat is arranged at one end of the connecting rod body, and a connecting rod cover is arranged on the crank mounting seat; the crank mounting seat and the connecting rod cover form a crank hole for connecting a crank, and the other end of the connecting rod is provided with a piston pin hole for connecting a piston; a first combining surface and a second combining surface are arranged between the end parts of the crank mounting seat and the connecting cover, and first positioning grooves matched with each other are arranged on the first combining surface; second positioning grooves matched with each other are arranged on the second combining surface, the first positioning grooves and the second positioning grooves are not parallel to each other, and the first combining surface and the second combining surface are not positioned on the same plane. The first positioning grooves and the second positioning grooves are not parallel to each other, and the first combining surface and the second combining surface are not positioned on the same plane, accordingly, the axial and radial relative motions of the crank mounting seat and the connecting rod cover along the crank hole are simultaneously restricted, and the bearing capacity, shear capacity and assembly quality of the connecting rod are higher.
Description
Technical field
The utility model relates to the engine fittings field, relates in particular to a kind of connecting rod.
Background technique
Connecting rod comprises and is positioned at crank hole that connecting rod shank one end forms by crank fitting seat and connecting rod cap and the piston pin hole that is positioned at the connecting rod shank the other end, connecting rod is located between piston and the bent axle, with the stressed bent axle that passes to of piston, thereby make the to-and-fro motion of piston change rotatablely moving of bent axle into.Connecting rod is bearing very high periodic shock power, bending force and inertial force in the course of the work.This just requires connecting rod to have high intensity, toughness and fatigue behaviour.The crank fitting seat of existing connecting rod and the locating slot between the connecting rod cap, only can retrain crank fitting seat and connecting rod cap along described crank hole moving radially, to the required precision height of screw between crank fitting seat and the connecting rod cap, Location accuracy is poor, has influenced the performance of connecting rod.
In recent years the bloated disconnected processing technology of the connecting rod of Chu Xianing at first, processes two splitters at the line of fracture place of connecting rod shank crank hole, in advance as the initial collapse source; Then, on the cracking special device, connecting rod crank hole inner side surface is applied radial force, make crackle by endoporus outwards constantly expansion finally connecting rod cap is expanded disconnected and separates from connecting rod shank until complete cracking; At last, on the cracking special device, connecting rod cap and connecting rod shank after cracking being separated accurately reset again, and under the condition that fracture surface meshes fully, finish the bolt hole manufacturing procedure at last, and the following process operation.The disconnected processing of expanding makes the connecting rod cap end of cracking and the junction plane between the crank fitting seat end have the cross structure of engagement fully, improved the bond quality of junction plane, need be in the processing of carrying out junction plane, improved the bearing capacity of connecting rod, shear resistance, assembly quality increases, but the junction plane of the disconnected processing of expanding is irregular, destroy inner structure, have no progeny connecting rod cap and the distortion of crank fitting seat two-part of expanding is inconsistent, produce the deviation about 0.01mm during resetting, bring influence for the repetition assembly precision, the material fragility of bulge-breaking process use simultaneously is big, cost an arm and a leg, yield strength and fatigue strength are low.
The model utility content
First technical problem to be solved in the utility model provides the higher self-align connecting rod of a kind of bearing capacity, shear resistance and assembly quality.
For solving the problems of the technologies described above, the technical solution of the utility model is: self-align connecting rod, comprise connecting rod shank, one end of described connecting rod shank is provided with the crank fitting seat, on the described crank fitting seat connecting rod cap is installed, described crank fitting seat and described connecting rod cap form the crank hole of connecting crank, the other end of described connecting rod shank is provided with the piston pin hole that connects piston, be provided with first junction plane and second junction plane between the end of described crank fitting seat and described connecting rod cap, described first junction plane is provided with first locating slot that cooperatively interacts, described second junction plane is provided with second locating slot that cooperatively interacts, described first locating slot and the described second locating slot irrelevancy are capable, and described first junction plane and described second junction plane are not in the same plane.
As optimized technical scheme, described first locating slot is vertical mutually with described second locating slot.
As optimized technical scheme, described locating slot indention.
Owing to adopted technique scheme, self-align connecting rod, comprise connecting rod shank, one end of described connecting rod shank is provided with the crank fitting seat, on the described crank fitting seat connecting rod cap is installed, described crank fitting seat and described connecting rod cap form the crank hole of connecting crank, the other end of described connecting rod shank is provided with the piston pin hole that connects piston, be provided with first junction plane and second junction plane between the end of described crank fitting seat and described connecting rod cap, described first junction plane is provided with first locating slot that cooperatively interacts, described second junction plane is provided with second locating slot that cooperatively interacts, described first locating slot and the described second locating slot irrelevancy are capable, and described first junction plane and described second junction plane are not in the same plane; First locating slot and the described second locating slot irrelevancy are capable, described first junction plane and described second junction plane are not in the same plane, retrain crank fitting seat and connecting rod cap simultaneously along the axial relative movement of described crank hole with along the relative movement radially of described crank hole, connecting rod bearing capacity, shear resistance and assembly quality are higher.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the structural representation of a kind of first locating slot and second locating slot among the utility model embodiment;
Fig. 3 is the structural representation of another kind of first locating slot and second locating slot among the utility model embodiment;
Among the figure: the 1-connecting rod shank; 2-crank fitting seat; The 3-connecting rod cap; The 4-crank hole; The 5-piston pin hole; 6-first locating slot; 7-second locating slot; I-first junction plane; II-second junction plane.
Embodiment
As depicted in figs. 1 and 2, self-align connecting rod, comprise connecting rod shank 1, one end of described connecting rod shank 1 is provided with crank fitting seat 2, on the described crank fitting seat 2 connecting rod cap 3 is installed, described crank fitting seat 2 and described connecting rod cap 3 form the crank hole 4 of connecting crank, the other end of described connecting rod shank 1 is provided with the piston pin hole 5 that connects piston, be provided with the first junction plane I and the second junction plane II between the end of described crank fitting seat 2 and described connecting rod cap 3, the described first junction plane I is provided with first locating slot 6 that cooperatively interacts, the described second junction plane II is provided with second locating slot 7 that cooperatively interacts, described first junction plane I and the described second junction plane II are not in the same plane, described locating slot indention, described first locating slot 6 and described second locating slot, 7 irrelevancies are capable, as a kind of special situation, described first locating slot 6 is vertical mutually with described second locating slot 7.
As a kind of other situations, as shown in Figure 3, described first locating slot 6 be not parallel to each other with described second locating slot 7 and described first locating slot 6 and described second locating slot 7 not vertical mutually yet.
First locating slot 6 and described second locating slot, 7 irrelevancies are capable, retrain crank fitting seat 2 and connecting rod cap 3 simultaneously along the axial relative movement of described crank hole 4 with along the relative movement radially of described crank hole 4, connecting rod bearing capacity, shear resistance and assembly quality are higher, and the described first junction plane I and the described second junction plane II are not in the same plane, and the bearing capacity of radial force is stronger.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.This utility model is not restricted to the described embodiments, and under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. self-align connecting rod, comprise connecting rod shank, one end of described connecting rod shank is provided with the crank fitting seat, on the described crank fitting seat connecting rod cap is installed, described crank fitting seat and described connecting rod cap form the crank hole of connecting crank, the other end of described connecting rod shank is provided with the piston pin hole that connects piston, be provided with first junction plane and second junction plane between the end of described crank fitting seat and described connecting rod cap, described first junction plane is provided with first locating slot that cooperatively interacts, described second junction plane is provided with second locating slot that cooperatively interacts, it is characterized in that: described first locating slot and the described second locating slot irrelevancy are capable, and described first junction plane and described second junction plane are not in the same plane.
2. self-align connecting rod as claimed in claim 1 is characterized in that: described first locating slot is vertical mutually with described second locating slot.
3. self-align connecting rod as claimed in claim 1 or 2 is characterized in that: described locating slot indention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200289795U CN201953799U (en) | 2011-01-28 | 2011-01-28 | Self-positioning connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200289795U CN201953799U (en) | 2011-01-28 | 2011-01-28 | Self-positioning connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953799U true CN201953799U (en) | 2011-08-31 |
Family
ID=44497909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200289795U Expired - Lifetime CN201953799U (en) | 2011-01-28 | 2011-01-28 | Self-positioning connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168713A (en) * | 2011-01-28 | 2011-08-31 | 潍坊浩泰机械有限责任公司 | Self-locating connecting rod |
-
2011
- 2011-01-28 CN CN2011200289795U patent/CN201953799U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168713A (en) * | 2011-01-28 | 2011-08-31 | 潍坊浩泰机械有限责任公司 | Self-locating connecting rod |
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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: 20110831 |