CN203856683U - Oil suction pipe connecting structure of oil supply crankshaft and enclosed reciprocating compressor of oil suction pipe connecting structure - Google Patents
Oil suction pipe connecting structure of oil supply crankshaft and enclosed reciprocating compressor of oil suction pipe connecting structure Download PDFInfo
- Publication number
- CN203856683U CN203856683U CN201320842304.3U CN201320842304U CN203856683U CN 203856683 U CN203856683 U CN 203856683U CN 201320842304 U CN201320842304 U CN 201320842304U CN 203856683 U CN203856683 U CN 203856683U
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- Prior art keywords
- oil
- bent axle
- hole
- sucking pipe
- fuel sucking
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Abstract
The utility model discloses an oil suction pipe connecting structure of an oil supply crankshaft. The oil suction pipe connecting structure comprises the crankshaft and an oil suction pipe, wherein a main oil hole is formed in the lower part of the axial center of the crankshaft; a spiral oil groove is formed in the upper part of the outer wall of the crankshaft; a wall oil hole for communicating the main oil hole and the spiral oil groove is radially formed between the main oil hole and the spiral oil groove; an oil storage groove is formed in the center of a crank of the crankshaft; an oil scattering groove hole communicated with the oil storage groove is radially formed in the crank; the oil suction pipe is buckled on the outer wall of the lower part of the crankshaft or the inner wall of the main oil hole in the lower part of the crankshaft; a bulge part and a sunken part, which are fastened to connect the oil suction pipe with the crankshaft, are respectively arranged at the top of the oil suction pipe and the lower part of the crankshaft, which correspond to each other; the interference fit in a cold pressing mode is avoided between the oil suction pipe and the main oil hole of the crankshaft, the normal oil suction function of the oil suction pipe is ensured, impurities such as scrap iron caused by the interference fit in the main oil hole of the crankshaft can be avoided, and potential safety hazards in the using process are eliminated. The utility model also discloses an enclosed reciprocating compressor.
Description
[technical field]
The utility model relates to the oil feeding mechanism of compressor, relates in particular to a kind of fuel sucking pipe linkage structure and hermetic reciprocating compressor thereof of fuel feeding bent axle.
[background technique]
Closed compression machine has oil feeding mechanism, oil feeding mechanism is to be used to provide sufficient lubricant oil, reduces the friction of friction pair and take away frictional heat in the time of compressor operating, reduces compressor noise, also play seal clearance simultaneously, ensure the normal work of compressor and long-term running.In prior art, the Placement on oil feeding mechanism between fuel sucking pipe and bent axle mainly adopts interference fit, by interference friction, fuel sucking pipe is fixed on to bent axle underpart, adopts the mode of colding pressing that fuel sucking pipe is press-fit on bent axle in detailed process; Therefore, be pressed into after the center hole of bent axle lower end at fuel sucking pipe, understand the existence due to magnitude of interference, and in central hole of the crankshaft, occur that iron is cut or burr, and cannot carry out scratch brushing, this just causes impurity to have serious potential safety hazard to compressor performance.Meanwhile, need to, using other positions of bent axle as support, there is distortion injury to bent axle when pressure is excessive in the mode of colding pressing.
[model utility content]
It is a kind of simple in structure, easy to process that the utility model provides, and can effectively improve fuel sucking pipe linkage structure and the hermetic reciprocating compressor thereof of the fuel feeding bent axle of bent axle assembling reliability.
In order to realize above-mentioned model utility object, the technical solution adopted in the utility model is:
A kind of fuel sucking pipe linkage structure of fuel feeding bent axle, comprise bent axle and fuel sucking pipe, the axial centre bottom of described bent axle offers main oil-hole, bent axle outer wall top offers helical oil groove, between main oil-hole and helical oil groove, be radially provided with the wall oilhole of conducting, the crank center of bent axle offers oil storage tank, crank radially offer the loose oil groove hole being communicated with oil storage tank; Described fuel sucking pipe is snapped in the outer wall place of bent axle bottom or is snapped in the main oil-hole inwall of bent axle bottom, and corresponding fuel sucking pipe top and bent axle bottom are respectively equipped be fastened and connected both lug boss and depressed part.
Preferably, described fuel sucking pipe top is provided with multiple screens projections uniformly, and corresponding bent axle bottom main oil-hole wall is provided with and inserts the screens through hole of snap-fit respectively of the screens projection on fuel sucking pipe in main oil-hole.
Preferably, described fuel sucking pipe is inserted in tube wall in the main oil-hole of bent axle bottom and at least offers one on axially and be convenient to the strip opening slot of fuel sucking pipe elasticity self contraction in main oil-hole, and strip opening slot length is less than fuel sucking pipe and is inserted in the length in bent axle main oil-hole.
Preferably, described strip opening slot is opened on the oil suction tube wall between screens projection.
Preferably, described bent axle top offers the Oil Guide passage of direct connection helical oil groove and oil storage tank.
Preferably, on the axial direction of the circumferential eccentric part of described bent axle, offer direct connection main oil-hole and oil storage tank and in the time that bent axle rotates, can utilize the upwards eccentric oil duct of straight line shape of pump oil of centrifugal force.
A kind of hermetic reciprocating compressor, this compressor uses the fuel sucking pipe linkage structure of above-mentioned fuel feeding bent axle, and this compressor is applicable to refrigeration refrigerator.
The beneficial effects of the utility model are:
The utility model is by changing fuel sucking pipe structure, be provided with uniformly multiple screens projections by fuel sucking pipe top, corresponding bent axle bottom main oil-hole wall is provided with and the screens projection screens through hole of snap-fit respectively, tube wall in fuel sucking pipe is inserted in bent axle bottom main oil-hole is offered many on axially and is convenient to the strip opening slot of fuel sucking pipe elasticity self contraction in main oil-hole again, make between fuel sucking pipe and bent axle main oil-hole, to avoid adopting the interference fit of the mode of colding pressing, both ensured the normal oil absorptive function of fuel sucking pipe, can avoid again in bent axle main oil-hole the generation due to the interference fit impurity such as cause that iron is cut, solve potential safety hazard, in while engagement process, without too large pressure, can reduce the injury to bent axle in assembly process, effectively ensure the assembly precision in the follow-up assembly technology of bent axle, improve manufacturing efficiency.
[brief description of the drawings]
Fig. 1 is that linkage structure master of the present utility model looks schematic diagram;
Fig. 2 is the A-A cross-sectional schematic of the part assembly structure in Fig. 1;
Fig. 3 is the structure for amplifying schematic diagram of fuel sucking pipe in the utility model;
Fig. 4 is perspective view of the present utility model.
[embodiment]
A kind of fuel sucking pipe linkage structure of fuel feeding bent axle, as shown in Figures 1 to 4, comprise bent axle 1 and fuel sucking pipe 2, axial centre bottom at bent axle 1 offers main oil-hole 3, bent axle 1 outer wall top offers helical oil groove 4, between main oil-hole 3 and helical oil groove 4, be radially provided with the wall oilhole 5 of conducting, the crank 1a center of bent axle 1 offers oil storage tank 6, crank 1a radially offers the loose oil groove hole 7 being communicated with oil storage tank 6, offers the Oil Guide passage 60 of direct connection helical oil groove 4 and oil storage tank 6 on bent axle 1 top; Fuel sucking pipe 2 is snapped on main oil-hole 3 inwalls of bent axle 1 bottom, upwards be provided with uniformly 4 screens projections 8 in 2 top weeks of fuel sucking pipe, 4 screens projections 8 are one-body molded with fuel sucking pipe 2, corresponding bent axle 1 bottom main oil-hole 3 walls are provided with and the screens projection 8 screens through hole 9 of snap-fit respectively inserting on the interior fuel sucking pipe 2 of main oil-hole 3, ensure fuel sucking pipe 2 be set in bent axle 1 bottom main oil-hole 3 interior after, effectively limit fuel sucking pipe 2 at the interior rotation of main oil-hole 3 of bent axle 1 or upper and lower play; Tube wall in fuel sucking pipe 2 is inserted in bent axle 1 bottom main oil-hole 3 also offers 4 on axially and is convenient to the strip opening slot 10 of fuel sucking pipe 2 elasticity self contractions in main oil-hole 3, wherein, strip opening slot 10 is opened on the oil suction tube wall between screens projection 8, strip opening slot 10 length are less than fuel sucking pipe and are inserted in the length in bent axle main oil-hole, avoid refrigeration oil to be leaked by strip opening slot 10 downsides.
The fuel sucking pipe linkage structure of the utility model fuel feeding bent axle can be widely used on hermetic reciprocating compressor, is particularly useful for refrigeration refrigerator.By changing fuel sucking pipe structure, be provided with uniformly multiple screens projections 8 by fuel sucking pipe 2 tops, corresponding bent axle 1 bottom main oil-hole 3 walls are provided with and the screens projection 8 screens through hole 9 of snap-fit respectively, tube wall in fuel sucking pipe 2 is inserted in bent axle 1 bottom main oil-hole 3 is offered many on axially and is convenient to the strip opening slot 10 of fuel sucking pipe 2 elasticity self contractions in main oil-hole 3 again, make between fuel sucking pipe 2 and bent axle 1 main oil-hole 3, to avoid adopting the interference fit of the mode of colding pressing, can effectively avoid in bent axle 1 main oil-hole 3 generation due to the interference fit impurity such as cause that iron is cut, solve the potential safety hazard in compressor using process, simultaneously in fuel sucking pipe 2 and bent axle 1 engagement process without too large pressure, can reduce the injury to bent axle in assembly process, effectively ensure the assembly precision in the follow-up assembly technology of bent axle, improve manufacturing efficiency.
The above embodiment just, for preferred embodiment of the present utility model, not limits practical range of the present utility model with this, and the equivalence that all shapes according to the utility model, structure and principle are done changes, and all should be covered by protection domain of the present utility model.
Claims (7)
1. the fuel sucking pipe linkage structure of a fuel feeding bent axle, comprise bent axle and fuel sucking pipe, the axial centre bottom of described bent axle offers main oil-hole, bent axle outer wall top offers helical oil groove, between main oil-hole and helical oil groove, be radially provided with the wall oilhole of conducting, the crank center of bent axle offers oil storage tank, crank radially offer the loose oil groove hole being communicated with oil storage tank; It is characterized in that:
Described fuel sucking pipe is snapped in the outer wall place of bent axle bottom or is snapped in the main oil-hole inwall of bent axle bottom, and corresponding fuel sucking pipe top and bent axle bottom are respectively equipped be fastened and connected both lug boss and depressed part.
2. the fuel sucking pipe linkage structure of a kind of fuel feeding bent axle according to claim 1, it is characterized in that, described fuel sucking pipe top is provided with multiple screens projections uniformly, and corresponding bent axle bottom main oil-hole wall is provided with and inserts the screens through hole of snap-fit respectively of the screens projection on fuel sucking pipe in main oil-hole.
3. the fuel sucking pipe linkage structure of a kind of fuel feeding bent axle according to claim 2, it is characterized in that, described fuel sucking pipe is inserted in tube wall in the main oil-hole of bent axle bottom and at least offers one on axially and be convenient to the strip opening slot of fuel sucking pipe elasticity self contraction in main oil-hole, and strip opening slot length is less than fuel sucking pipe and is inserted in the length in bent axle main oil-hole.
4. the fuel sucking pipe linkage structure of a kind of fuel feeding bent axle according to claim 3, is characterized in that, described strip opening slot is opened on the oil suction tube wall between screens projection.
5. the fuel sucking pipe linkage structure of a kind of fuel feeding bent axle according to claim 1, is characterized in that, described bent axle top offers the Oil Guide passage of direct connection helical oil groove and oil storage tank.
6. the fuel sucking pipe linkage structure of a kind of fuel feeding bent axle according to claim 1, it is characterized in that, on the axial direction of the circumferential eccentric part of described bent axle, offer direct connection main oil-hole and oil storage tank and in the time that bent axle rotates, can utilize the upwards eccentric oil duct of straight line shape of pump oil of centrifugal force.
7. a hermetic reciprocating compressor, is characterized in that, this compressor uses the fuel sucking pipe linkage structure of the fuel feeding bent axle described in the claims 1 to 6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320842304.3U CN203856683U (en) | 2013-12-18 | 2013-12-18 | Oil suction pipe connecting structure of oil supply crankshaft and enclosed reciprocating compressor of oil suction pipe connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320842304.3U CN203856683U (en) | 2013-12-18 | 2013-12-18 | Oil suction pipe connecting structure of oil supply crankshaft and enclosed reciprocating compressor of oil suction pipe connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856683U true CN203856683U (en) | 2014-10-01 |
Family
ID=51606538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320842304.3U Withdrawn - After Issue CN203856683U (en) | 2013-12-18 | 2013-12-18 | Oil suction pipe connecting structure of oil supply crankshaft and enclosed reciprocating compressor of oil suction pipe connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856683U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850915A (en) * | 2013-12-18 | 2014-06-11 | 珠海凌达压缩机有限公司 | Oil suction pipe connecting structure for oil supply crankshaft and enclosed reciprocating compressor thereof |
| CN106337872A (en) * | 2016-09-20 | 2017-01-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft oil channel structure and crankshaft and compressor comprising same |
| CN112709700A (en) * | 2020-12-25 | 2021-04-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil supply structure, compressor and have its equipment |
| CN117365909A (en) * | 2023-12-07 | 2024-01-09 | 珠海凌达压缩机有限公司 | Oil guide structure and compressor |
-
2013
- 2013-12-18 CN CN201320842304.3U patent/CN203856683U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850915A (en) * | 2013-12-18 | 2014-06-11 | 珠海凌达压缩机有限公司 | Oil suction pipe connecting structure for oil supply crankshaft and enclosed reciprocating compressor thereof |
| CN106337872A (en) * | 2016-09-20 | 2017-01-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft oil channel structure and crankshaft and compressor comprising same |
| CN112709700A (en) * | 2020-12-25 | 2021-04-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil supply structure, compressor and have its equipment |
| CN117365909A (en) * | 2023-12-07 | 2024-01-09 | 珠海凌达压缩机有限公司 | Oil guide structure and compressor |
| CN117365909B (en) * | 2023-12-07 | 2024-03-26 | 珠海凌达压缩机有限公司 | Oil guide structure and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141001 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |