CN215890377U - Oil scraping structure of reciprocating compressor - Google Patents
Oil scraping structure of reciprocating compressor Download PDFInfo
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- CN215890377U CN215890377U CN202121291441.3U CN202121291441U CN215890377U CN 215890377 U CN215890377 U CN 215890377U CN 202121291441 U CN202121291441 U CN 202121291441U CN 215890377 U CN215890377 U CN 215890377U
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- scraping
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Abstract
The utility model provides an oil scraping structure of a reciprocating compressor, which has good oil scraping and sealing effects. The oil scraping box is inserted into a connecting cavity between the cylinder and the crankcase and is sleeved outside the piston rod; the oil scraping box respectively comprises a packing chamber, an oil scraping cavity and a gland in the airflow direction, and a wave spring, an annular steel plate, a locking ring, a sealing ring and a choke ring are stacked and installed in the packing chamber in the airflow direction; the side surface of the oil scraping cavity is pressed on the side surfaces of the packing chamber and the flow blocking ring, more than two groups of oil scraping ring groups are stacked and installed in the oil scraping cavity along the airflow direction, each oil scraping ring group comprises a first oil scraping ring and a second oil scraping ring, the first oil scraping ring and the second oil scraping ring are mutually abutted and connected through a positioning pin to form a group of oil scraping ring groups, and a distance ring is abutted between the two oil scraping ring groups; the first oil scraper ring, the second oil scraper ring, the annular steel plate, the locking ring, the sealing ring and the choke ring are respectively sleeved outside the piston rod; the side surface of the gland is pressed against the side surface of the oil scraping ring group at the topmost layer.
Description
Technical Field
The utility model belongs to the field of compressors, and particularly relates to an oil scraping structure of a compressor.
Background
The lubrication of the crosshead of the reciprocating compressor belongs to splash lubrication, the oil scraping effect of an oil scraper ring is poor or leakage can cause overlarge consumption of lubricating oil, and meanwhile, oil stains from the crank side can also bring an air inlet cylinder through a piston rod to pollute the air cylinder.
The prior oil wiper in China mostly adopts simple oil wiping and sealing devices, and a partition plate is arranged between the oil wiping device and the sealing device. The traditional oil wiper has poor oil wiping and sealing effects and has the risk that oil stains are brought into a cylinder to pollute the cylinder.
Disclosure of Invention
In order to solve the problem that the traditional oil scraper is poor in oil scraping and sealing effects, the utility model provides an oil scraping structure of a reciprocating compressor, which is good in oil scraping and sealing effects.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the utility model provides a reciprocating compressor frizing structure, its is including scraping the oil tank, its characterized in that: the oil scraping box is inserted into a connecting cavity between the cylinder and the crankcase and is sleeved outside the piston rod; the oil scraping box comprises a packing chamber, an oil scraping cavity and a gland respectively along the airflow direction, and a wave spring, an annular steel plate, a locking ring, a sealing ring and a choke ring are stacked and installed in the packing chamber along the airflow direction; the side surface of the oil scraping cavity is pressed against the side surfaces of the packing chamber and the flow blocking ring, more than two oil scraping ring sets are stacked and installed in the oil scraping cavity along the airflow direction, each oil scraping ring set comprises a first oil scraping ring and a second oil scraping ring, the first oil scraping ring and the second oil scraping ring are mutually abutted and connected through a positioning pin to form one oil scraping ring set, and a distance ring is abutted between the two oil scraping ring sets; the first oil scraper ring, the second oil scraper ring, the annular steel plate, the locking ring, the sealing ring and the choke ring are respectively sleeved outside the piston rod; the side surface of the gland is pressed against the side surface of the oil scraping ring group at the topmost layer.
It is further characterized in that:
one ends of more than two studs respectively penetrate through the gland and the through holes of the oil scraping cavity and are screwed in the threaded holes of the packing chamber, and the other ends of the studs are respectively screwed by nuts and abut against the side surface of the gland;
a flange plate is arranged on one side, close to the cylinder, of the packing chamber, the side face of the flange plate abuts against the side face of the connecting cavity, a bolt penetrates through the flange plate and is screwed into the side face of the connecting cavity, and the oil scraping box is fixedly installed in the connecting cavity;
and a rubber sealing ring is pressed between the side surface of the flange plate and the side surface of the connecting cavity.
The utility model has the beneficial effects that: the setting of the oil scraping ring group more than two sets of in the oil scraping cavity guarantees the oil scraping effect, and the setting of the wave spring, the annular steel plate, the locking ring, the sealing ring and the choking ring in the packing chamber strengthens the sealing performance, and further avoids oil stains from being brought into the cylinder to pollute the cylinder.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1, a cylinder; 2 a crankcase; 3 connecting the cavities; 4 a piston rod; 5, scraping an oil tank; 51 a packing chamber; 511 a wave spring; 512 ring-shaped steel plates; 513 locking the rings; 514 a sealing ring; 515 a flow choking ring; 516, a flange plate; 52 scraping the oil cavity; 521 oil scraping ring group; 522 a first oil scraper ring; 523 second oil scraper ring; 524 positioning pins; 525 gauge rings; 53, pressing a cover; 54 stud bolts; 55 a threaded hole; 56 a nut; 57 a bolt; 58 sealing ring.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
A reciprocating compressor oil scraping structure comprises an oil scraping box 5, wherein the oil scraping box 5 is inserted into a connecting cavity 3 between an air cylinder 1 and a crankcase 2 and is sleeved outside a piston rod 4; the oil scraping box 5 comprises a packing chamber 51, an oil scraping cavity 52 and a gland 53 respectively along the airflow direction, and a wave spring 511, an annular steel plate 512, a locking ring 513, a sealing ring 514 and a choke ring 515 are stacked and installed in the packing chamber 51 along the airflow direction; the side surface of the oil scraping cavity 52 is pressed against the side surfaces of the stuffing chamber 51 and the choke ring 515, more than two oil scraping ring sets 521 are stacked and installed in the oil scraping cavity 52 along the airflow direction, each oil scraping ring set 521 comprises a first oil scraping ring 522 and a second oil scraping ring 523, the first oil scraping ring 522 and the second oil scraping ring 523 are mutually abutted and connected through a positioning pin 524 to form a set of oil scraping ring set 521, and a distance ring 525 is abutted between the two oil scraping ring sets 521; the first oil scraper ring 522, the second oil scraper ring 523, the annular steel plate 512, the locking ring 513, the sealing ring 514 and the choke ring 515 are respectively sleeved outside the piston rod 4; the side of the gland 53 presses against the side of the topmost oil scraper ring set 521.
One ends of more than two studs 54 respectively penetrate through holes of the gland 53 and the oil scraping cavity 52 and are screwed in threaded holes 55 of the packing chamber 51, and the other ends of the studs 54 are respectively screwed by nuts 56 and abut against the side surface of the gland 53; a flange plate 516 is arranged on one side, close to the cylinder 1, of the packing chamber 51, the side face of the flange plate 516 abuts against the side face of the connecting cavity 3, and the bolt 57 penetrates through the flange plate 516 and is screwed into the side face of the connecting cavity 3, so that the oil scraping box 5 is fixedly arranged in the connecting cavity 3; a rubber sealing ring 58 is pressed between the side surface of the flange plate 516 and the side surface of the connecting cavity 3.
The utility model has the beneficial effects that: the arrangement of more than two oil scraping ring groups 521 in the oil scraping cavity 52 ensures the oil scraping effect, and the arrangement of the wave spring 511, the annular steel plate 512, the locking ring 513, the sealing ring 514 and the choke ring 515 in the stuffing chamber 51 enhances the sealing performance, thereby further preventing oil stains from being brought into the cylinder 1 to pollute the cylinder 1.
Claims (4)
1. The utility model provides a reciprocating compressor frizing structure, its is including scraping the oil tank, its characterized in that: the oil scraping box is inserted into a connecting cavity between the cylinder and the crankcase and is sleeved outside the piston rod; the oil scraping box comprises a packing chamber, an oil scraping cavity and a gland respectively along the airflow direction, and a wave spring, an annular steel plate, a locking ring, a sealing ring and a choke ring are stacked and installed in the packing chamber along the airflow direction; the side surface of the oil scraping cavity is pressed against the side surfaces of the packing chamber and the flow blocking ring, more than two oil scraping ring sets are stacked and installed in the oil scraping cavity along the airflow direction, each oil scraping ring set comprises a first oil scraping ring and a second oil scraping ring, the first oil scraping ring and the second oil scraping ring are mutually abutted and connected through a positioning pin to form one oil scraping ring set, and a distance ring is abutted between the two oil scraping ring sets; the first oil scraper ring, the second oil scraper ring, the annular steel plate, the locking ring, the sealing ring and the choke ring are respectively sleeved outside the piston rod; the side surface of the gland is pressed against the side surface of the oil scraping ring group at the topmost layer.
2. The oil scraping structure of a reciprocating compressor as claimed in claim 1, wherein: and one ends of more than two studs respectively penetrate through the gland and the through hole of the oil scraping cavity and are screwed in the threaded hole of the packing chamber, and the other ends of the studs are respectively screwed by nuts and abut against the side surface of the gland.
3. The oil scraping structure of a reciprocating compressor as claimed in claim 2, wherein: and a flange plate is arranged on one side of the packing chamber, which is close to the cylinder, the side surface of the flange plate is abutted against the side surface of the connecting cavity, and a bolt penetrates through the flange plate and is screwed into the side surface of the connecting cavity, so that the oil scraping box is fixedly arranged in the connecting cavity.
4. A scraping structure for a reciprocating compressor according to claim 3, wherein: and a rubber sealing ring is pressed between the side surface of the flange plate and the side surface of the connecting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121291441.3U CN215890377U (en) | 2021-06-10 | 2021-06-10 | Oil scraping structure of reciprocating compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121291441.3U CN215890377U (en) | 2021-06-10 | 2021-06-10 | Oil scraping structure of reciprocating compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215890377U true CN215890377U (en) | 2022-02-22 |
Family
ID=80346259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121291441.3U Active CN215890377U (en) | 2021-06-10 | 2021-06-10 | Oil scraping structure of reciprocating compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215890377U (en) |
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2021
- 2021-06-10 CN CN202121291441.3U patent/CN215890377U/en active Active
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