CN214945696U - Reciprocating compressor and crosshead assembly thereof - Google Patents
Reciprocating compressor and crosshead assembly thereof Download PDFInfo
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- CN214945696U CN214945696U CN202022411243.8U CN202022411243U CN214945696U CN 214945696 U CN214945696 U CN 214945696U CN 202022411243 U CN202022411243 U CN 202022411243U CN 214945696 U CN214945696 U CN 214945696U
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- oil
- reciprocating compressor
- mounting holes
- sliding shoe
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Abstract
The utility model discloses a reciprocating compressor's cross head assembly and reciprocating compressor relates to compressor technical field, and the main objective improves the homogeneity of oil film between cross head assembly and the fuselage slide to guarantee the normal operating of compressor. The utility model discloses a main technical scheme does: the crosshead assembly of the reciprocating compressor includes: the cross head body is provided with at least two rows of first mounting holes, and the at least two rows of first mounting holes are positioned on two sides of the plane of the central line of the cross head body; the sliding shoe is provided with at least two rows of second mounting holes, the at least two rows of second mounting holes are located on two sides of the central line of the sliding shoe, and the first mounting holes and the second mounting holes in each row are connected through fasteners in a one-to-one correspondence mode.
Description
Technical Field
The utility model relates to a compressor technical field especially relates to a reciprocating compressor's cross head subassembly and reciprocating compressor.
Background
The crosshead assembly is an important component of the reciprocating compressor and is used for connecting the piston and the connecting rod so as to transmit torque from the connecting rod to the assembly part of the piston, and the stable operation of the crosshead assembly directly influences the stability of the overall operation of the compressor.
The crosshead assembly generally comprises a crosshead body and a sliding shoe connected with the crosshead body, the sliding shoe is in contact with a machine body slideway of the compressor, the crosshead assembly reciprocates in the slideway of the machine body through the sliding shoe, and an oil film is formed in a gap formed between the sliding shoe and the machine body slideway in the operation process of the compressor so as to ensure the stable operation of the compressor.
However, when the shoe is connected to the crosshead body, if the roundness of the outer circle of the shoe changes, the gap between the crosshead assembly and the body slideway is not uniform, so that the formed oil film is not uniform, and the normal operation of the compressor is affected.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a reciprocating compressor's cross head assembly and reciprocating compressor, the main objective improves the homogeneity of oil film between cross head assembly and the fuselage slide to guarantee the normal operating of compressor.
In order to achieve the above object, the utility model mainly provides the following technical scheme:
in one aspect, an embodiment of the present invention provides a crosshead assembly of a reciprocating compressor, including:
the cross head body is provided with at least two rows of first mounting holes, and the at least two rows of first mounting holes are positioned on two sides of the plane of the central line of the cross head body;
the sliding shoe is provided with at least two rows of second mounting holes, the at least two rows of second mounting holes are located on two sides of the central line of the sliding shoe, and the first mounting holes and the second mounting holes in each row are connected through fasteners in a one-to-one correspondence mode.
Furthermore, one side of the outer surface of the crosshead body is provided with a key which protrudes outwards, and the key extends along the circumferential direction of the crosshead body;
and one side of the inner surface of the sliding shoe is provided with a key groove, the key groove extends along the width direction of the sliding shoe, and the key is connected with the key groove in a matching way.
Furthermore, a gasket is arranged between the crosshead body and the sliding shoe, and the gasket is of an integral sheet structure.
Further, an inner oil hole is formed in the crosshead body;
the outer surface of the sliding shoe is provided with a plurality of first oil supply grooves which are arranged in a transversely-longitudinally staggered mode, and the first oil supply grooves are communicated with the inner oil hole through first oil conveying holes formed in the first oil supply grooves.
Further, an inner oil hole is formed in the crosshead body;
the outer surface of the sliding shoe is provided with two annular second oil supply grooves and a cross-shaped oil way which is positioned in the two second oil supply grooves and is communicated with the two second oil supply grooves;
the center of the cross-shaped oil way is provided with a second oil conveying hole communicated with the inner oil hole, and two opposite intersection points of the cross-shaped oil way and the second oil supply groove positioned on the outer side are respectively provided with the second oil conveying holes communicated with the inner oil hole.
Further, the second oil supply groove is oval.
Further, the outer surface of the sliding shoe is provided with a friction layer.
On the other hand, the embodiment of the utility model provides a reciprocating compressor is still provided, including aforementioned reciprocating compressor's crosshead subassembly.
Borrow by above-mentioned technical scheme, the utility model discloses following beneficial effect has at least:
the embodiment of the utility model provides a technical scheme, through set up two rows at least first mounting holes on the crosshead body, set up two rows at least second mounting holes on the crawler shoe, and, two rows at least first mounting holes are located crosshead body central line place planar both sides, two rows at least second mounting hole set up the central line both sides that are located the crawler shoe, so, connect the back through the fastener at every row first mounting hole and every row second mounting hole one-to-one, the edge of crawler shoe can laminate the surface of crosshead body, the excircle circularity of crawler shoe has been improved, thereby the homogeneity in clearance between crawler shoe and the fuselage has been improved, make and can form even oil film between crawler shoe and the fuselage slide, the steady operation of compressor has been guaranteed.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a crosshead assembly of a reciprocating compressor according to an embodiment of the present invention;
FIG. 2 is a schematic sectional view taken along the direction B-B in FIG. 1;
FIG. 3 is a schematic structural view of the shoe of FIG. 1;
fig. 4 is a schematic sectional view along the direction a-a in fig. 3.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
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.
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in fig. 1, 2, 3 and 4, an embodiment of the present invention provides a crosshead assembly of a reciprocating compressor, including a crosshead body 1, wherein the crosshead body 1 is provided with at least two rows of first mounting holes 11, and the at least two rows of first mounting holes 11 are located on two sides of a plane where a center line of the crosshead body 1 is located; the sliding shoe 2 is provided with at least two rows of second mounting holes 21, the at least two rows of second mounting holes 21 are positioned at two sides of the central line of the sliding shoe 2, and each row of first mounting holes 11 and each row of second mounting holes 21 are correspondingly connected through the fastening pieces 3.
Wherein, the quantity of crawler shoe 2 can be two, and connects respectively in the both sides of crosshead body 1, and every row of first mounting hole 11 and every row of second mounting hole 21 all can be the straight line and arrange, and every two adjacent first mounting holes 11 and every two adjacent second mounting holes 21 between the distance all can equal, simultaneously, first mounting hole 11 all can be the bolt hole with second mounting hole 21, fastener 3 can be the bolt.
The embodiment of the utility model provides a reciprocating compressor's crosshead assembly, through set up two rows at least first mounting hole 11 on crosshead body 1, set up two rows at least second mounting hole 21 on crawler shoe 2, and, two rows at least first mounting hole 11 are located crosshead body 1 central line place planar both sides, two rows at least second mounting hole 21 set up the central line both sides that are located crawler shoe 2, so, connect the back through fastener 3 at every row of first mounting hole 11 and every row of second mounting hole 21 one-to-one, crosshead body 1's surface can be laminated to crawler shoe 2's edge, crawler shoe 2's excircle circularity has been improved, thereby the homogeneity in clearance between crawler shoe 2 and the fuselage slide has been improved, make and can form even oil film between crawler shoe 2 and the fuselage slide, the steady operation of compressor has been guaranteed.
In an alternative embodiment, referring to fig. 1, 3 and 4, an outwardly protruding key 12 may be disposed on one side of the outer surface of the crosshead body 1, and the key 12 may be disposed to extend along the circumferential direction of the crosshead body 1; and a key groove 22 may be formed on one side of the inner surface of the shoe 2, the key groove 22 may extend in the width direction of the shoe 2, and the key 12 and the key groove 22 are connected in a matching manner. Moreover, a gasket may be disposed between the crosshead body 1 and the shoe 2, and the gasket may have an integral sheet structure.
In the above embodiment, the key 12 disposed on the crosshead body 1 is connected with the key slot 22 disposed on the shoe 2 in a matching manner, so that the mounting and positioning between the crosshead body 1 and the shoe 2 can be realized. In addition, the gasket is arranged between the crosshead body 1 and the sliding shoe 2, so that the gap between the crosshead assembly and the machine body slideway can be adjusted by detaching the gasket in the installation process of the crosshead assembly, and a better oil film is formed.
In the above embodiment, the key 12 on the crosshead body 1 is disposed on one side of the crosshead body 1, not at the middle position, and the key groove 22 on the slipper 2 is disposed on one side of the slipper 2, not at the middle position, so that the gasket disposed between the crosshead body and the slipper 2 can be a complete sheet structure, not two split gaskets, and then only one operation is required when detaching the gasket, which is convenient to operate.
In an alternative embodiment, referring to fig. 1, 2 and 3, an inner oil hole is provided inside the crosshead body 1; the outer surface of the sliding shoe 2 is provided with a plurality of first oil supply grooves 23 which are arranged in a transversely and longitudinally staggered mode, the first oil supply grooves 23 are communicated with the inner oil hole through first oil transmission holes arranged on the first oil supply grooves, so that lubricating oil seeps out from a gap between the crosshead body 1 and the machine body slideway to form an oil film, the contact surface of the crosshead body 1 and the machine body slideway is lubricated to form bearing capacity, and stable and safe operation of a compressor piston component is guaranteed.
In an alternative embodiment, the inner part of the crosshead body 1 is provided with an inner oil hole; the outer surface of the sliding shoe 2 can be provided with two annular second oil supply grooves and a cross-shaped oil way which is positioned in the two second oil supply grooves and is communicated with the two second oil supply grooves; the center of the cross-shaped oil way can be provided with a second oil conveying hole communicated with the inner oil hole, and two opposite intersection points of the cross-shaped oil way and the second oil supply groove positioned on the outer side are respectively provided with the second oil conveying holes communicated with the inner oil hole.
In the above embodiment, the lubricating oil can flow to the two second oil supply grooves from the center, and under the action of the two second oil conveying holes, oil pressure is formed quickly, annular oil supply can be formed on the surface of the sliding shoe 2, the oil film has no dispersibility, the oil film has good pressure retention property and low oil consumption, the oil distribution in a lubricating area is dense, a lubricating blind area is avoided, the oil film thickness is uniform, the lubricating performance and the oil film bearing capacity can be improved, and the stable and safe operation of a piston part of the compressor is ensured. Wherein the second oil supply groove may have an elliptical shape.
In an alternative embodiment, the outer surface of the shoe 2 may be provided with a friction layer, which may be a babbitt layer or the like.
The embodiment of the utility model provides a reciprocating compressor is still provided, including aforementioned reciprocating compressor's crosshead body 1 subassembly.
The embodiment of the utility model provides a reciprocating compressor, including reciprocating compressor's crosshead assembly, through set up two rows at least first mounting hole 11 on crosshead body 1, set up two rows at least second mounting hole 21 on crawler shoe 2, and, two rows at least first mounting hole 11 are located crosshead body 1 central line place planar both sides, two rows at least second mounting hole 21 set up the central line both sides that are located crawler shoe 2, so, connect the back through fastener 3 at every row of first mounting hole 11 and every row of second mounting hole 21 one-to-one, crosshead body 1's surface can be laminated to crawler shoe 2's edge, slipper 2's excircle circularity has been improved, thereby the homogeneity in clearance between crawler shoe 2 and the fuselage slide has been improved, make and to form even oil film between crawler shoe 2 and the fuselage slide, the steady operation of compressor has been guaranteed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. A crosshead assembly for a reciprocating compressor, comprising:
the cross head body is provided with at least two rows of first mounting holes, and the at least two rows of first mounting holes are positioned on two sides of the plane of the central line of the cross head body;
the sliding shoe is provided with at least two rows of second mounting holes, the at least two rows of second mounting holes are located on two sides of the central line of the sliding shoe, and the first mounting holes and the second mounting holes in each row are connected through fasteners in a one-to-one correspondence mode.
2. The crosshead assembly of a reciprocating compressor of claim 1,
one side of the outer surface of the crosshead body is provided with a key which protrudes outwards, and the key extends along the circumferential direction of the crosshead body;
and one side of the inner surface of the sliding shoe is provided with a key groove, the key groove extends along the width direction of the sliding shoe, and the key is connected with the key groove in a matching way.
3. The crosshead assembly of a reciprocating compressor of claim 1,
and a gasket is arranged between the crosshead body and the sliding shoe and is of an integral sheet structure.
4. The crosshead assembly of a reciprocating compressor of claim 1,
an inner oil hole is formed in the crosshead body;
the outer surface of the sliding shoe is provided with a plurality of first oil supply grooves which are arranged in a transversely-longitudinally staggered mode, and the first oil supply grooves are communicated with the inner oil hole through first oil conveying holes formed in the first oil supply grooves.
5. The crosshead assembly of a reciprocating compressor of claim 1,
an inner oil hole is formed in the crosshead body;
the outer surface of the sliding shoe is provided with two annular second oil supply grooves and a cross-shaped oil way which is positioned in the two second oil supply grooves and is communicated with the two second oil supply grooves;
the center of the cross-shaped oil way is provided with a second oil conveying hole communicated with the inner oil hole, and two opposite intersection points of the cross-shaped oil way and the second oil supply groove positioned on the outer side are respectively provided with the second oil conveying holes communicated with the inner oil hole.
6. The crosshead assembly of a reciprocating compressor of claim 5,
the second oil supply groove is oval.
7. The crosshead assembly of a reciprocating compressor of claim 1,
and a friction layer is arranged on the outer surface of the sliding shoe.
8. A reciprocating compressor, comprising:
the crosshead assembly of a reciprocating compressor as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022411243.8U CN214945696U (en) | 2020-10-27 | 2020-10-27 | Reciprocating compressor and crosshead assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022411243.8U CN214945696U (en) | 2020-10-27 | 2020-10-27 | Reciprocating compressor and crosshead assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214945696U true CN214945696U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022411243.8U Active CN214945696U (en) | 2020-10-27 | 2020-10-27 | Reciprocating compressor and crosshead assembly thereof |
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| Country | Link |
|---|---|
| CN (1) | CN214945696U (en) |
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2020
- 2020-10-27 CN CN202022411243.8U patent/CN214945696U/en active Active
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