CN214366654U - Adjustable positioning structure for big end of connecting rod of diaphragm compressor - Google Patents
Adjustable positioning structure for big end of connecting rod of diaphragm compressor Download PDFInfo
- Publication number
- CN214366654U CN214366654U CN202120477028.XU CN202120477028U CN214366654U CN 214366654 U CN214366654 U CN 214366654U CN 202120477028 U CN202120477028 U CN 202120477028U CN 214366654 U CN214366654 U CN 214366654U
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- connecting rod
- big end
- big
- mounting hole
- supporting
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Abstract
A diaphragm compressor connecting rod big end adjustable positioning structure is characterized in that bearing bushes are arranged between a connecting rod and a big end cover as well as a crankshaft, the connecting rod and the big end cover are fixedly connected through a positioning bolt and a locking nut, two ends of the connecting rod and two ends of the big end cover are respectively provided with a connecting rod mounting hole and a big end cover mounting hole, and a supporting circular truncated cone is arranged in the big end cover mounting hole; the positioning bolt is characterized in that a gasket is arranged between the head end of the positioning bolt and the front end face of the connecting rod mounting hole, a supporting end face is arranged at the rear section of the positioning bolt, the supporting end face abuts against the supporting round platform, and the tail end of the positioning bolt is fixedly connected with the big head cover through a locking nut. The positioning bolt is provided with a supporting end face, and is matched with a supporting circular truncated cone in the large head cover, so that the large head cover can be better supported, and the positioning accuracy of the connecting rod and the large head cover can be ensured. Through the change of adjusting shim thickness, can adjust the big skull and the distance of connecting rod terminal surface to adjustment axle bush in downthehole mounted state that can be convenient, thereby improve the working life of axle bush, improve aircraft nose working life.
Description
Technical Field
The utility model relates to a diaphragm compressor assembly fixture technical field, particularly adjustable location structure of diaphragm compressor connecting rod major part.
Background
The bearing bush is generally positioned in a big end hole of the connecting rod through a conventional cylindrical positioning pin, specifically, two ends of the cylindrical positioning pin are respectively inserted and fixed with a pin hole on the connecting rod and a positioning hole on the bearing bush through the cylindrical positioning pin, then a connecting rod bolt is used for pressing a big end cover of the connecting rod, and the bearing bush is tightly attached in the big end hole; meanwhile, due to large interference magnitude, when the cylindrical positioning pin is installed, the cylindrical positioning pin needs to be pressed into the pin hole of the connecting rod by using large assembling force, and the outward end of the positioning pin can be deformed at the moment, so that the matching of the positioning pin and the bearing bush is influenced; finally, because the locating hole on the axle bush generally is greater than the diameter of cylinder locating pin, and because locating pin and connecting rod only accomplish mutual fixed between them through interference fit, along with the operating duration increases, the locating pin probably takes off, can scratch the high-speed rotatory bent axle surface in the axle bush after the pine takes off, arouses even that the tile burns, locks the bent axle, can not normal operating, can not satisfy people's demand.
How to more conveniently adjust the installation state of the bearing bush in the hole so as to improve the service life of the bearing bush and the service life of the machine head, and the problem needs to be solved at the present stage.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model aims to provide an adjustable positioning structure for the big end of a connecting rod of a diaphragm compressor, wherein bearing bushes are arranged between the connecting rod, a big end cover and a crankshaft, the connecting rod and the big end cover are fixedly connected through a positioning bolt and a locking nut, two ends of the connecting rod and two ends of the big end cover are respectively provided with a connecting rod mounting hole and a big end cover mounting hole, and a supporting round platform is arranged in the big end cover mounting hole;
the positioning bolt is characterized in that a gasket is arranged between the head end of the positioning bolt and the front end face of the connecting rod mounting hole, a supporting end face is arranged at the rear section of the positioning bolt, the supporting end face abuts against the supporting round platform, and the tail end of the positioning bolt is fixedly connected with the big head cover through a locking nut.
Furthermore, an elastic washer is arranged between the locking nut and the rear end face of the big head cover mounting hole.
Furthermore, big end lid mounting hole rear end face with big end lid forms the mounting groove, the elastic washer inlay in the mounting groove.
Further, the spacer can be replaced with a different thickness for adjusting the distance of the large head cover from the link.
The utility model has the advantages that:
(1) the positioning bolt is provided with a supporting end face, and is matched with a supporting circular truncated cone in the large head cover, so that the large head cover can be better supported, and the positioning accuracy of the connecting rod and the large head cover can be ensured.
(2) Through the change of adjusting shim thickness, can adjust the big skull and the distance of connecting rod terminal surface to adjustment axle bush in downthehole mounted state that can be convenient, thereby improve the working life of axle bush, improve aircraft nose working life.
Drawings
FIG. 1 is a view of the installation structure of the present invention;
FIG. 2 is a sectional view of the mounting structure of the present invention;
FIG. 3 is a sectional view of the head cover;
fig. 4 is a link structure view.
Drawing reference number
The bearing comprises a connecting rod (1), a big end cover (2), a crankshaft (3), a bearing bush (4), a positioning bolt (5), a locking nut (6), a connecting rod mounting hole (7), a big end cover mounting hole (8), a supporting circular truncated cone (9), a gasket (10), a supporting end face (11), an elastic washer (12) and a mounting groove (13).
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings, which are provided for illustration purposes only to help understanding the present invention and are not to be construed as limiting the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout.
The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example 1
As shown in fig. 1-4, the utility model discloses an adjustable positioning structure for the big end of a connecting rod 1 of a diaphragm compressor, bearing bushes 4 are arranged between the connecting rod 1, the big end cover 2 and a crankshaft 3, the connecting rod 1 and the big end cover 2 are fixedly connected through a positioning bolt 5 and a locking nut 6, two ends of the connecting rod 1 and the big end cover 2 are respectively provided with a connecting rod mounting hole 7 and a big end cover mounting hole 8, and a supporting circular truncated cone 9 is arranged in the big end cover mounting hole 8;
a gasket 10 is arranged between the head end of the positioning bolt 5 and the front end face of the connecting rod mounting hole 7, a supporting end face 11 is arranged at the rear section, the supporting end face 11 abuts against the supporting circular truncated cone 9, and the tail end of the supporting circular truncated cone is fixedly connected with the big head cover 2 through a locking nut 6.
An elastic washer 12 is arranged between the locking nut 6 and the rear end face of the big head cover mounting hole 8. The rear end face of the big head cover mounting hole 8 and the big head cover 2 form a mounting groove 13, and the elastic gasket 12 is embedded in the mounting groove 13.
The spacer 10 can be replaced with a different thickness for adjusting the distance of the large head cover 2 from the link 1.
When the adjusting device is used specifically, the mounting state of the bearing bush is adjusted according to different conditions, the distance between the connecting rod and the big head cover is adjusted by selecting gaskets with different thicknesses according to different mounting states of the bearing bush during mounting, the locking bolt stretches into the mounting hole and abuts against the supporting circular truncated cone, the supporting force is provided for the big head cover, meanwhile, the accuracy of the coaxial line of the bolt and the mounting hole is further corrected, and finally, the bolt is locked by the elastic washer and the locking nut to realize adjustment and mounting.
The embodiments of the present invention, it is understood that the above embodiments are exemplary and not intended to be construed as limiting, and those skilled in the art can change, modify, replace and modify the above embodiments without departing from the spirit and scope of the present invention, and the simple combination of the above embodiments is listed as the protection of the present invention.
Claims (4)
1. The utility model provides a diaphragm compressor connecting rod major part adjustable positioning structure, all is equipped with axle bush (4) between connecting rod (1) and major part lid (2) and bent axle (3), connecting rod (1) and major part lid (2) are through positioning bolt (5) and lock nut (6) fixed connection, its characterized in that:
two ends of the connecting rod (1) and two ends of the big end cover (2) are respectively provided with a connecting rod mounting hole (7) and a big end cover mounting hole (8), and a supporting circular table (9) is arranged in the big end cover mounting hole (8);
the head end of the positioning bolt (5) and a gasket (10) is arranged between the front end faces of the connecting rod mounting holes (7), the rear section is provided with a supporting end face (11), the supporting end face (11) is abutted to the supporting circular truncated cone (9), and the tail end of the supporting circular truncated cone is fixedly connected with the large head cover (2) through a locking nut (6).
2. The adjustable positioning structure for the big end of a connecting rod of a diaphragm compressor as claimed in claim 1, wherein: and an elastic washer (12) is arranged between the locking nut (6) and the rear end face of the large head cover mounting hole (8).
3. The adjustable positioning structure for the big end of a connecting rod of a diaphragm compressor as claimed in claim 2, wherein: big end lid mounting hole (8) rear end face with big end lid (2) form mounting groove (13), elastic washer (12) inlay in mounting groove (13).
4. The adjustable positioning structure for the big end of a connecting rod of a diaphragm compressor as claimed in claim 1, wherein: the pad (10) can be replaced by different thicknesses for adjusting the distance between the large head cover (2) and the connecting rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120477028.XU CN214366654U (en) | 2021-03-05 | 2021-03-05 | Adjustable positioning structure for big end of connecting rod of diaphragm compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120477028.XU CN214366654U (en) | 2021-03-05 | 2021-03-05 | Adjustable positioning structure for big end of connecting rod of diaphragm compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214366654U true CN214366654U (en) | 2021-10-08 |
Family
ID=77971393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120477028.XU Active CN214366654U (en) | 2021-03-05 | 2021-03-05 | Adjustable positioning structure for big end of connecting rod of diaphragm compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214366654U (en) |
-
2021
- 2021-03-05 CN CN202120477028.XU patent/CN214366654U/en active Active
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