CN104214197A - Connection rod - Google Patents
Connection rod Download PDFInfo
- Publication number
- CN104214197A CN104214197A CN201310213940.4A CN201310213940A CN104214197A CN 104214197 A CN104214197 A CN 104214197A CN 201310213940 A CN201310213940 A CN 201310213940A CN 104214197 A CN104214197 A CN 104214197A
- Authority
- CN
- China
- Prior art keywords
- coupling sleeve
- rod
- connection sleeve
- connecting rod
- little
- 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.)
- Pending
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A disclosed connection rod comprises a rod body, and a large connection sleeve and a small connection sleeve fixedly arranged at two ends of the rod body; the shaft axes of the large connection sleeve and the small connection sleeve are perpendicular to the length direction of the rod body; the diameter of the large connection sleeve is larger than the diameter of the small connection sleeve; and the surfaces of inner holes of the large connection sleeve and the small connection sleeve are all provided with a nitridation-processed layer. By arranging the nitridation-processed layers on the inner hole surfaces of the large connection sleeve and the small connection sleeve, the wear resistance, the fatigue resistance, the corrosion resistance and the high-temperature resistance of the connection rod are improved, and the service life of the connection rod is prolonged.
Description
Technical field
The present invention relates to a kind of connecting rod.
Background technique
Connecting rod be two ends respectively with initiatively and driven member is hinged moves and the rod member of power to transmit, such as, in reciprocating piston type dynamic power machine and compressor, connect piston and crank with connecting rod.Connecting rod mostly is steel part, the cross section of its main body mostly is circular or I-shaped, two ends are porose, hole is built with bronze bushing or needle bearing, form hinged for loading pivot pin, connecting rod is the strength member in the motor such as automobile and boats and ships, and it is connected to piston and bent axle, its effect is the rotary motion to-and-fro motion of piston being changed into bent axle, and the power acted on piston is passed to bent axle with output power.Connecting rod at work, except bearing the pressure of firing chamber combustion gas generation, also will bear the inertial force of vertical and horizontal.Therefore, connecting rod works under a complicated stress phase.It not only by alternation tension and compression stress, but also by bending in stress linkage mechanism two ends respectively with initiatively and driven member is hinged moves and the rod member of power to transmit, and its size coupling sleeve is when with piston and bent axle interlock, very easily weares and teares, and makes its working life shorter.
Summary of the invention
The object of the invention is to overcome the defect existed in prior art, provide a kind of connecting rod, wear resistance is good, and working life is longer.
For achieving the above object, technological scheme of the present invention there is provided a kind of connecting rod, comprise the body of rod, be fixedly installed on the large coupling sleeve at described body of rod two end part and little coupling sleeve, the shaft axis of described large coupling sleeve and described little coupling sleeve and the length direction of the described body of rod perpendicular, the diameter of described large coupling sleeve is greater than the diameter of described little coupling sleeve, and described large coupling sleeve and the bore area of described little coupling sleeve are provided with nitriding treatment layer.
As preferably, an end face of described large coupling sleeve offers ringwise first mounting groove being convenient to install seal ring, and the described corresponding end face of little coupling sleeve offers ringwise second mounting groove being convenient to install seal ring.When facilitating connecting rod to be connected with miscellaneous part, the installation of seal ring between the two, and make sealing better.
As preferably, the described body of rod is straight-bar.It also can be knee or curved bar.
As preferably, the length of described large coupling sleeve is greater than the length of described little coupling sleeve.
Advantage of the present invention and beneficial effect are: by arranging nitriding treatment layer at the bore area of large coupling sleeve and little coupling sleeve, increasing its wear resistance, fatigue resistance, corrosion resistance and heat-resisting quantity, extending its working life.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
In figure: 1, the body of rod; 2, large coupling sleeve; 3, little coupling sleeve; 4, nitriding treatment layer; 5, the first mounting groove; 6, the second mounting groove.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technological scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, a kind of connecting rod, comprise the body of rod 1, be fixedly installed on the large coupling sleeve 2 at the described body of rod 1 two end part and little coupling sleeve 3, the shaft axis of described large coupling sleeve 2 and described little coupling sleeve 3 and the length direction of the described body of rod 1 perpendicular, the diameter of described large coupling sleeve 2 is greater than the diameter of described little coupling sleeve 2, and described large coupling sleeve 2 is provided with nitriding treatment layer 4 with the bore area of described little coupling sleeve 3.
As shown in Figure 1, an end face of described large coupling sleeve 2 offers ringwise first mounting groove 5 being convenient to install seal ring, and the corresponding end face of described little coupling sleeve 3 offers ringwise second mounting groove 6 being convenient to install seal ring.
As shown in Figure 1, the described body of rod 1 is straight-bar.
As shown in Figure 1, the length of described large coupling sleeve 2 is greater than the length of described little coupling sleeve 3.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a connecting rod, it is characterized in that: comprise the body of rod, be fixedly installed on the large coupling sleeve at described body of rod two end part and little coupling sleeve, the shaft axis of described large coupling sleeve and described little coupling sleeve and the length direction of the described body of rod perpendicular, the diameter of described large coupling sleeve is greater than the diameter of described little coupling sleeve, and described large coupling sleeve and the bore area of described little coupling sleeve are provided with nitriding treatment layer.
2. connecting rod as claimed in claim 1, it is characterized in that: an end face of described large coupling sleeve offers ringwise first mounting groove being convenient to install seal ring, the described corresponding end face of little coupling sleeve offers ringwise second mounting groove being convenient to install seal ring.
3. connecting rod as claimed in claim 1, is characterized in that: the described body of rod is straight-bar.
4. connecting rod as claimed in claim 1, is characterized in that: the length of described large coupling sleeve is greater than the length of described little coupling sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213940.4A CN104214197A (en) | 2013-05-29 | 2013-05-29 | Connection rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213940.4A CN104214197A (en) | 2013-05-29 | 2013-05-29 | Connection rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104214197A true CN104214197A (en) | 2014-12-17 |
Family
ID=52096000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310213940.4A Pending CN104214197A (en) | 2013-05-29 | 2013-05-29 | Connection rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104214197A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3094725A1 (en) * | 2019-04-03 | 2020-10-09 | Staubli Lyon | Jacquard link and mechanical link comprising such a link |
-
2013
- 2013-05-29 CN CN201310213940.4A patent/CN104214197A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3094725A1 (en) * | 2019-04-03 | 2020-10-09 | Staubli Lyon | Jacquard link and mechanical link comprising such a link |
| EP3722469A1 (en) | 2019-04-03 | 2020-10-14 | Staubli Lyon | Connecting rod and jacquard mechanism comprising such a connecting rod |
| CN111793876A (en) * | 2019-04-03 | 2020-10-20 | 史陶比尔里昂公司 | Connecting rod and jacquard mechanism comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |