CN218325163U - Diaphragm compressor connecting rod assembly limit structure - Google Patents
Diaphragm compressor connecting rod assembly limit structure Download PDFInfo
- Publication number
- CN218325163U CN218325163U CN202222472566.7U CN202222472566U CN218325163U CN 218325163 U CN218325163 U CN 218325163U CN 202222472566 U CN202222472566 U CN 202222472566U CN 218325163 U CN218325163 U CN 218325163U
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- rod
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- connecting rod
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Abstract
The utility model relates to a diaphragm compressor specifically is a diaphragm compressor connecting rod assembly limit structure, including the body of rod and major part lid, the body of rod includes pole portion, and pole portion one end is the annular microcephaly of circle, the other end is the annular major part of semicircle, forms the ring behind major part lid and the major part rigid coupling, and is different with prior art, cuts out plane section and facade section on the both sides changeover portion of pole portion and major part respectively, and the pin fin of bolt has the spacing face with facade section butt. Compared with the prior art, the utility model discloses the degree of freedom of the direction of rotation that the bolt produced in the installation can be restricted in the cooperation of the spacing face of the pin fin of bolt and the facade section butt on the body of rod, makes things convenient for the loading and unloading of connecting rod. Meanwhile, the connecting rod and the connecting rod cover can be limited to be dislocated in the assembling process by the transition fit or micro-clearance fit of the polished rod section of the screw rod, the large-head connecting hole and the large-head cover connecting hole.
Description
Technical Field
The utility model relates to a diaphragm compressor specifically is a diaphragm compressor connecting rod assembly limit structure.
Background
The diaphragm compressor is a positive displacement compressor with a special structure, and is characterized in that a piston pushes working oil in an oil cavity of an oil cylinder, the oil uniformly pushes a diaphragm to reciprocate in a diaphragm cavity formed between a cylinder cover and a curved surface of an oil distribution disc after passing through the oil distribution disc, the volume of an air cavity of a cylinder is changed, and the purpose of compressing and conveying gas is achieved under the condition that an air suction valve and an air discharge valve work in a matched mode.
The connecting rod is a key part for the transmission of the diaphragm compressor, and the big end of the existing connecting rod is usually in a middle-open type and is fixedly connected through two bolts or screws. However, the two ends of the existing bolt or screw are not provided with limiting structures, the head end of the bolt or screw needs to be fixed, and the nut at the other end needs to be screwed or unscrewed when the bolt or screw is assembled and disassembled, the big end is matched with the crankshaft, the crankshaft is positioned in the crankcase, the space is narrow, and the head end of the bolt or screw cannot be fixed, so that the assembling and disassembling are difficult. On the other hand, the head end of the bolt or the screw is not limited and is provided with a rotary free end, so that the screw is easy to loosen in the operation process of the diaphragm compressor.
SUMMERY OF THE UTILITY MODEL
For overcoming one of prior art's defect or defect, the utility model discloses a diaphragm compressor connecting rod assembles limit structure, and the technical scheme who takes is:
the utility model provides a diaphragm compressor connecting rod assembles limit structure, includes the body of rod and big head cover, and the body of rod includes pole portion, and pole portion one end is annular microcephaly, the other end is the annular big head of semicircle, forms the ring after big head cover and big head rigid coupling, and different with prior art, cut out plane section and facade section on the both sides changeover portion of pole portion and big head respectively, the pin head of bolt has the spacing face with facade section butt.
Furthermore, when the nail head of the bolt is a hexagonal nail head or a quadrangular nail head, one side surface of the nail head is a limiting surface.
Further, when the head of the bolt is a cylindrical head, a limiting surface is cut along the axial direction of a chord projected by the cylindrical head, and an arc corresponding to the chord is a major arc.
Further, a screw rod of the bolt is divided into a polished rod section and a threaded section, and the outer diameter of the polished rod section is larger than that of the threaded section; the 2 plane sections of the big head are respectively provided with big head connecting holes, the big head covers corresponding to the 2 big head connecting holes are respectively provided with concentric and same-diameter big head cover connecting holes, and the optical rod section is in transition fit or micro-clearance fit with the big head connecting holes and the big head cover connecting holes.
Furthermore, the inner end of the nail head of the bolt extends towards one side of the screw rod to form a washer which is fixed with the nail head into a whole.
Furthermore, the nut in threaded connection with the bolt is a hexagon nut or a tetragonal nut, and a spring washer is sleeved on the screw rod on the inner side of the nut.
Compared with the prior art, the utility model discloses the degree of freedom of the direction of rotation that the bolt produced in the installation can be restricted in the cooperation of the spacing face of the pin fin of bolt and the facade section butt on the body of rod, makes things convenient for the loading and unloading of connecting rod. Meanwhile, the connecting rod and the connecting rod cover can be limited to be dislocated in the assembling process by the transition fit or micro-clearance fit of the polished rod section of the screw rod, the large-head connecting hole and the large-head cover connecting hole.
Drawings
FIG. 1 is a schematic view of the structure of embodiment 1.
Fig. 2 is a schematic structural view of the rod body in embodiment 1.
Fig. 3 is a schematic view of the structure of the large head cap in embodiment 1.
Fig. 4 is a schematic structural view of a bolt in embodiment 1.
FIG. 5 is a schematic view of the structure of embodiment 2.
Fig. 6 is a schematic structural view of a bolt in embodiment 2.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be mechanically or electrically connected, directly or indirectly through intervening media, or both elements may be in communication. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In example 2, as shown in fig. 2, 3, 5, and 6, the other points are the same as in example 1, except that the stud 31 of the bolt 2 is a cylindrical head, and the stopper surface 311 is cut in the axial direction of a chord projected along the cylindrical head, and the arc corresponding to the chord is a major arc.
The limit surface of the nail head is matched with the vertical surface section on the rod body in an abutting mode, so that the degree of freedom of the rotation direction of the bolt generated in the installation process can be limited, and the connecting rod is convenient to assemble and disassemble. Meanwhile, the polished rod section of the screw is in transition fit or micro-clearance fit with the large-end connecting hole and the large-end cover connecting hole, so that dislocation of the connecting rod and the connecting rod cover in the assembling process can be limited.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a diaphragm compressor connecting rod assembly limit structure, including the body of rod (1) and big head cover (2), the body of rod (1) is including pole portion (11), pole portion (11) one end is annular microcephaly (12), the other end is annular major part (13) of semicircle, form the ring after major part cover (2) and major part (13) rigid coupling, a serial communication port, cut out plane section (15) and facade section (16) on pole portion (11) and both sides changeover portion (14) of major part (13) respectively, pin fin (31) of bolt (3) have with spacing face (311) of facade section (16) butt.
2. The connecting rod assembling limit structure of a diaphragm compressor according to claim 1, wherein when the nail head (31) of the bolt (3) is a hexagonal nail head or a quadrangular nail head, one of the side surfaces of the nail head (31) is a limit surface (311).
3. The connecting rod assembling limit structure of a diaphragm compressor according to claim 1, characterized in that when the head (31) of the bolt (3) is a cylindrical head, a limit surface (311) is cut along the axial direction of a chord projected from the cylindrical head, and the arc corresponding to the chord is a major arc.
4. The connecting rod assembling limit structure of the diaphragm compressor according to claim 1, wherein the screw (32) of the bolt (3) is divided into a polish rod section (321) and a threaded section (322), and the outer diameter of the polish rod section (321) is larger than that of the threaded section (322); big end connecting holes (17) are respectively formed in 2 plane sections (15) of the big end (13), concentric big end cover connecting holes (21) with the same diameter are respectively formed in the big end covers (2) corresponding to the 2 big end connecting holes (17), and the polished rod section (321) is in transition fit or micro-clearance fit with the big end connecting holes (17) and the big end cover connecting holes (21).
5. The connecting rod assembling limit structure of a diaphragm compressor according to claim 1, wherein the inner end of the nail head (31) of the bolt (3) extends to the side facing the screw rod to form a washer (312) which is fixed with the nail head (31) into a whole.
6. The connecting rod assembling and limiting structure of the diaphragm compressor as claimed in claim 1, wherein the nut screwed with the bolt (3) is a hexagon nut or a quadrangle nut, and a spring washer is sleeved on a screw rod at the inner side of the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222472566.7U CN218325163U (en) | 2022-09-19 | 2022-09-19 | Diaphragm compressor connecting rod assembly limit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222472566.7U CN218325163U (en) | 2022-09-19 | 2022-09-19 | Diaphragm compressor connecting rod assembly limit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218325163U true CN218325163U (en) | 2023-01-17 |
Family
ID=84838197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222472566.7U Active CN218325163U (en) | 2022-09-19 | 2022-09-19 | Diaphragm compressor connecting rod assembly limit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218325163U (en) |
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2022
- 2022-09-19 CN CN202222472566.7U patent/CN218325163U/en active Active
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