CN208982471U - Freezer compressor link assembly - Google Patents
Freezer compressor link assembly Download PDFInfo
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- CN208982471U CN208982471U CN201821587075.4U CN201821587075U CN208982471U CN 208982471 U CN208982471 U CN 208982471U CN 201821587075 U CN201821587075 U CN 201821587075U CN 208982471 U CN208982471 U CN 208982471U
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- 239000000463 material Substances 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims description 11
- 229910000746 Structural steel Inorganic materials 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000000737 periodic effect Effects 0.000 abstract description 4
- 229910000851 Alloy steel Inorganic materials 0.000 abstract 1
- 229910000975 Carbon steel Inorganic materials 0.000 abstract 1
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000010962 carbon steel Substances 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
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Abstract
The utility model proposes a kind of freezer compressor link assemblies, belong to freezer compressor technical field.This freezer compressor link assembly, one end of the body of rod are provided with axis hole, and the eccentric part of axis hole and crankshaft is hinged, the other end of the body of rod is provided with opening, the outer ring of assembly spherical bearing, the inner ring of spherical bearing are provided with pin hole in opening, and pin hole is fixedly connected with piston pin.The utility model has the beneficial effects that avoid piston pin bearing by periodic shock load, piston pin is not allowed vulnerable, also reduces the failure rate of freezer compressor；Piston pin does not need to be heat-treated, and the material selection of piston pin can also be adjusted to the lower structural carbon steel of cost by structural alloy steel；The longitudinal degress of feedom is increased between the outer ring and inner ring of spherical bearing, two hole perpendicularity of cylinder seat, the two axis depth of parallelism of crankshaft are required lower, it avoids piston, piston pin, crankshaft from generating eccentric wear, reduces the abrasion at connecting rod pin hole, improve compressor operating efficiency and reliability.
Description
Technical Field
The utility model relates to a refrigerator compressor technical field especially relates to a link assembly for refrigerator compressor.
Background
In the existing refrigerator compressor, a connecting rod is hinged with a piston through a piston pin. When the compressor of the refrigerator works, the crankshaft drives the connecting rod, and the connecting rod drives the piston to do linear reciprocating motion. On one hand, the piston pin belongs to a moving part, bears large periodic impact load and is easy to damage, and the main forms are surface abrasion and fatigue crack; on the other hand, the connecting rod is hinged with the piston through the piston pin, longitudinal freedom is lacked, high requirements are provided for the verticality of two holes of the cylinder seat and the parallelism of two shafts of the crankshaft, if the dimensional accuracy of the cylinder seat and the crankshaft is insufficient, eccentric wear can be generated on the piston, the piston pin and the crankshaft, the pin hole of the connecting rod is easy to wear, and the efficiency of the compressor is reduced. In addition, the connecting rod of the existing refrigerator compressor is designed in an integrated mode, the mold is complex, and the cost investment is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a link assembly for refrigerator compressor solves between present refrigerator compressor connecting rod and the piston through the articulated technical problem who has above-mentioned a great deal of drawback of piston pin.
The utility model provides a link assembly for refrigerator compressor, including the body of rod, bent axle, piston pin and spherical sliding bearing, the one end of the body of rod is provided with the shaft hole, and the shaft hole is articulated with the eccentric portion of bent axle, and the other end of the body of rod is provided with the opening, assembles spherical sliding bearing's outer lane in the opening, and spherical sliding bearing's inner circle is provided with the pinhole, pinhole and piston pin fixed connection.
Further, the rod body comprises a first connecting rod, a second connecting rod and a positioning connecting piece; the first connecting rod comprises a first sleeve, the middle position of the first sleeve is a shaft hole, and one end of the first sleeve is provided with two assembling lugs side by side; the second connecting rod comprises a second sleeve, the middle position of the second sleeve is an opening, a spherical sliding bearing is arranged in the opening on the second sleeve, and one end of the second sleeve is provided with an assembling handle; the assembly handle is embedded in the space between the two assembly lugs, and the assembly lugs are connected with the assembly handle in an assembling mode through the positioning connecting piece.
Furthermore, the opposite surfaces of the two assembling lugs are respectively provided with a first vertical groove, and the upper surfaces of the two assembling lugs are respectively provided with a first transverse groove communicated with the first vertical grooves; two side surfaces of the assembling handle are both provided with second vertical grooves, and the upper surface of the assembling handle is provided with second transverse grooves communicated with the second vertical grooves; the positioning connecting piece comprises a transverse baffle and two vertical baffles, the two vertical baffles are arranged side by side, and the upper ends of the two vertical baffles are connected with the transverse baffle; when the assembling handle is embedded in a space between the two assembling lugs, the first vertical groove is aligned with the second vertical groove, and the first transverse groove is aligned with the second transverse groove; the vertical separation blade is inserted into a space between the first vertical groove and the second vertical groove, one part of the vertical separation blade is clamped with the first vertical groove, the other part of the vertical separation blade is clamped with the second vertical groove, two ends of the transverse separation blade are clamped with the first transverse groove, and the middle part of the transverse separation blade is clamped with the second transverse groove.
Furthermore, one side of each vertical baffle is provided with a barb.
Further, the barb is made of spring steel material.
Furthermore, the upper end surfaces of the transverse blocking pieces are flush with the upper surfaces of the two assembling lugs and the upper surface of the assembling handle.
Furthermore, one end of the first sleeve is provided with an annular reinforcing seat, and the reinforcing seat is provided with two assembling lugs.
Further, the piston pin is made of a carbon structural steel material.
Furthermore, the pin hole is in interference fit with the piston pin.
Compared with the prior art, the utility model discloses a link assembly for refrigerator compressor has following characteristics and advantage:
the connecting rod assembly for the refrigerator compressor avoids the piston pin bearing periodic impact load, the piston pin is not easy to lose efficacy, and the failure rate of the refrigerator compressor is also reduced; the piston pin does not need heat treatment, and the material of the piston pin can be adjusted to carbon structural steel with lower cost by alloy structural steel; the longitudinal degree of freedom is increased between the outer ring and the inner ring of the spherical sliding bearing, the requirements on the verticality of two holes of a cylinder seat and the parallelism of two shafts of a crankshaft are low, eccentric wear of a piston, a piston pin and the crankshaft is avoided, abrasion at the pin hole of a connecting rod is reduced, and the working efficiency and reliability of the compressor are improved.
After reading the detailed description of the present invention in conjunction with the drawings, the features and advantages of the present invention will become more apparent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a part of a connecting rod assembly for a refrigerator compressor according to an embodiment of the present invention;
fig. 2 is an exploded view of a portion of the structure of a connecting rod assembly for a refrigerator compressor according to an embodiment of the present invention;
fig. 3 is a perspective view of a first connecting rod in a connecting rod assembly for a refrigerator compressor according to an embodiment of the present invention;
fig. 4 is a perspective view of a second connecting rod in a connecting rod assembly for a refrigerator compressor according to an embodiment of the present invention;
FIG. 5 is a perspective view of a positioning connector in a connecting rod assembly for a refrigerator compressor in accordance with an embodiment of the present invention;
wherein,
1. the assembling structure comprises a first connecting rod, 11, a first sleeve, 111, a shaft hole, 12, a reinforcing seat, 13, an assembling lug, 2, a second connecting rod, 21, a second sleeve, 211, an opening, 22, an assembling handle, 3, a positioning connecting piece, 31, a transverse baffle, 32, a vertical baffle, 33, a barb, 41, a first vertical groove, 42, a first transverse groove, 51, a second vertical groove, 52, a second transverse groove, 61, an outer ring of a spherical sliding bearing, 62, an inner ring of the spherical sliding bearing, 621 and a pin hole.
Detailed Description
As shown in fig. 1 to 5, the present embodiment provides a connecting rod assembly for a compressor of a refrigerator, which includes a rod body, a crankshaft (not shown), a piston pin (not shown), and a spherical sliding bearing, which is composed of an outer ring 61 of the spherical sliding bearing and an inner ring 62 of the spherical sliding bearing.
One end of the rod body is provided with a shaft hole 111, the shaft hole 111 is hinged with the eccentric part of the crankshaft, and the other end of the rod body is provided with an opening 211. An outer ring 61 of the spherical sliding bearing is fitted in the opening 211, and a pin hole 621 is provided in an inner ring 62 of the spherical sliding bearing, and the pin hole 621 is fixedly connected to a piston pin. In this embodiment, the pin hole 621 and the wrist pin are in an interference fit, so that there is no relative movement therebetween. The piston pin of the embodiment is made of carbon structural steel materials, so that the alloy structural steel which is commonly used at present is not required to be selected, and the cost is reduced.
The rod body of this embodiment includes a first link 1, a second link 2 and a positioning connector 3. The positioning connecting piece 3 is used for assembling the first connecting rod 1 and the second connecting rod 2 into a whole.
The first connecting rod 1 comprises a first sleeve 11, the middle position of the first sleeve 11 is an axle hole 111, one end of the first sleeve 11 is provided with an annular reinforcing seat 12, and two assembling lugs 13 are arranged on the reinforcing seat 12 side by side. The reinforcement socket 12 secures the first sleeve 11 to the mounting ears 13. First vertical groove 41 has all been seted up to the opposite face of two assembly ears 13, and first transverse groove 42 has all been seted up to the upper surface of two assembly ears 13, and first transverse groove 42 communicates with first vertical groove 41.
The second connecting rod 2 comprises a second sleeve 21, the middle position of the second sleeve 21 is an opening 211, and a spherical sliding bearing is arranged in the opening 211 on the second sleeve 21. One end of the second sleeve 21 is provided with an assembling handle 22, and the second sleeve 21 and the assembling handle 22 are integrally formed. The two side surfaces of the assembling handle 22 are both provided with second vertical grooves 51, the upper surface of the assembling handle 22 is provided with second transverse grooves 52, and the second transverse grooves 52 are communicated with the second vertical grooves 51.
The positioning connecting piece 3 comprises a transverse baffle 31 and two vertical baffles 32, wherein the two vertical baffles 32 are arranged side by side, and the upper ends of the two vertical baffles 32 are connected with the transverse baffle 31.
The assembling handle 22 is embedded in the space between the two assembling lugs 13, the first vertical groove 41 is aligned with the second vertical groove 51, and the first transverse groove 42 is aligned with the second transverse groove 52. The vertical baffle plate 32 is inserted into a space between the first vertical groove 41 and the second vertical groove 51, one part of the vertical baffle plate 32 is clamped with the first vertical groove 41, the other part of the vertical baffle plate 32 is clamped with the second vertical groove 51, two ends of the transverse baffle plate 31 are clamped with the first transverse groove 42, and the middle part of the transverse baffle plate 31 is clamped with the second transverse groove 52. The upper end faces of the transverse blocking pieces 31 are flush with the upper surfaces of the two assembling lugs 13 and the upper surface of the assembling handle 22. Therefore, the assembling lugs 13 and the assembling handle 22 are assembled and connected through the positioning connecting piece 3, and the assembling lugs 13, the assembling handle 22 and the positioning connecting piece 3 are assembled firmly.
One side of the two vertical blocking pieces 32 is provided with a barb 33, and the barb 33 can prevent the vertical blocking pieces 32 from falling off from the first vertical groove 41 and the second vertical groove 51. The barb 33 is made of a spring steel material, and when the vertical baffle 32 is inserted into the space between the first vertical groove 41 and the second vertical groove 51, the barb 33 is deformed to enable the barb 33 to be tightly extruded on the inner walls of the first vertical groove 41 and the second vertical groove 51.
The connecting rod assembly for the refrigerator compressor is applied to the refrigerator compressor, and in the normal operation process of the compressor, the crankshaft drives the connecting rod, and the connecting rod drives the piston to do linear reciprocating motion. The outer ring 61 of the spherical sliding bearing and the inner ring 62 of the spherical sliding bearing rotate and swing at any angle, so that the situation that a piston pin bears periodic impact load is avoided, the piston pin is not easy to lose efficacy, and the failure rate of the refrigerator compressor is reduced. The piston pin does not need heat treatment, and the material of the piston pin can be adjusted to carbon structural steel with lower cost by alloy structural steel. The longitudinal degree of freedom is increased between the outer ring 61 of the spherical sliding bearing and the inner ring 62 of the spherical sliding bearing, the requirements on the verticality of two holes of a cylinder seat and the parallelism of two shafts of a crankshaft are low, eccentric wear of a piston, a piston pin and the crankshaft is avoided, abrasion at the pin hole 621 of a connecting rod is reduced, and the working efficiency and reliability of the compressor are improved. In addition, the connecting rod assembly for the refrigerator compressor is of a split type design, and all split components are assembled into a whole, so that the mold is simple in structure, and the production cost is reduced.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (8)
1. The utility model provides a link assembly for refrigerator compressor which characterized in that: the novel crankshaft structure comprises a rod body, a crankshaft, a piston pin and a spherical sliding bearing, wherein a shaft hole is formed in one end of the rod body, the shaft hole is hinged to an eccentric portion of the crankshaft, an opening is formed in the other end of the rod body, an outer ring of the spherical sliding bearing is assembled in the opening, a pin hole is formed in an inner ring of the spherical sliding bearing, and the pin hole is fixedly connected with the piston pin.
2. The connecting rod assembly for a compressor of a refrigerator according to claim 1, wherein: the rod body comprises a first connecting rod, a second connecting rod and a positioning connecting piece; the first connecting rod comprises a first sleeve, the middle position of the first sleeve is a shaft hole, and one end of the first sleeve is provided with two assembling lugs side by side; the second connecting rod comprises a second sleeve, the middle position of the second sleeve is an opening, a spherical sliding bearing is arranged in the opening on the second sleeve, and one end of the second sleeve is provided with an assembling handle; the assembly handle is embedded in the space between the two assembly lugs, and the assembly lugs are connected with the assembly handle in an assembling mode through the positioning connecting piece.
3. The connecting rod assembly for a compressor of a refrigerator according to claim 2, wherein: the opposite surfaces of the two assembling lugs are respectively provided with a first vertical groove, and the upper surfaces of the two assembling lugs are respectively provided with a first transverse groove communicated with the first vertical grooves; two side surfaces of the assembling handle are both provided with second vertical grooves, and the upper surface of the assembling handle is provided with second transverse grooves communicated with the second vertical grooves; the positioning connecting piece comprises a transverse baffle and two vertical baffles, the two vertical baffles are arranged side by side, and the upper ends of the two vertical baffles are connected with the transverse baffle; when the assembling handle is embedded in a space between the two assembling lugs, the first vertical groove is aligned with the second vertical groove, and the first transverse groove is aligned with the second transverse groove; the vertical separation blade is inserted into a space between the first vertical groove and the second vertical groove, one part of the vertical separation blade is clamped with the first vertical groove, the other part of the vertical separation blade is clamped with the second vertical groove, two ends of the transverse separation blade are clamped with the first transverse groove, and the middle part of the transverse separation blade is clamped with the second transverse groove.
4. The link assembly for a compressor of a refrigerator according to claim 3, wherein: one side of the two vertical separation blades is provided with a barb.
5. The link assembly for a compressor of a refrigerator according to claim 4, wherein: the barb is made of spring steel material.
6. The link assembly for a compressor of a refrigerator according to claim 3, wherein: the upper end surfaces of the transverse retaining pieces are flush with the upper surfaces of the two assembling lugs and the upper surface of the assembling handle.
7. The connecting rod assembly for a compressor of a refrigerator according to claim 1, wherein: the piston pin is made of carbon structural steel material.
8. The connecting rod assembly for a compressor of a refrigerator according to claim 1, wherein: the pin hole is in interference fit with the piston pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821587075.4U CN208982471U (en) | 2018-09-27 | 2018-09-27 | Freezer compressor link assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821587075.4U CN208982471U (en) | 2018-09-27 | 2018-09-27 | Freezer compressor link assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208982471U true CN208982471U (en) | 2019-06-14 |
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ID=66785789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821587075.4U Active CN208982471U (en) | 2018-09-27 | 2018-09-27 | Freezer compressor link assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208982471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526505A (en) * | 2018-05-24 | 2018-09-14 | 浙江德迈机械有限公司 | A kind of multistation online process equipment and processing method simultaneously |
| CN108999876A (en) * | 2018-09-27 | 2018-12-14 | 青岛万宝压缩机有限公司 | Freezer compressor link assembly |
-
2018
- 2018-09-27 CN CN201821587075.4U patent/CN208982471U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526505A (en) * | 2018-05-24 | 2018-09-14 | 浙江德迈机械有限公司 | A kind of multistation online process equipment and processing method simultaneously |
| CN108999876A (en) * | 2018-09-27 | 2018-12-14 | 青岛万宝压缩机有限公司 | Freezer compressor link assembly |
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