Oil scraper ring of piston type compressor

Abstract

The utility model relates to the technical field of piston type compressors, in particular to an oil scraper ring of a piston type compressor. The utility model provides a piston type compressor oil scraper ring which comprises a piston rod, an oil scraper ring body, an oil scraper ring, a cutting edge, a mounting assembly, a supporting assembly, a connecting assembly, an inserting assembly and an abutting assembly. Compared with a traditional piston type compressor, the oil scraper ring is often vibrated or shaken, and the oil scraper ring is troublesome to overhaul and replace, so that fastening installation and convenient disassembly and assembly are inconvenient to achieve, in the using process of the piston type compressor, firstly, an installation assembly can be inserted and fixed through an insertion assembly, and then the oil scraper ring can be fixed through an insertion assembly; in addition, under the elastic force action of the abutting assembly, the abutting assembly can be in close contact with the piston rod all the time, then the oil scraping ring body is kept stable, and the oil scraping effect of the oil scraping ring body is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of piston compressors, in particular to an oil scraper ring of a piston compressor. Background Art

[0002] The oil scraper ring is a kind of oil ring, which is used to scrape the lubricating oil on the inner wall of the cylinder. It is widely used in equipment such as compressors or engines. The compressor is a driven fluid machinery that boosts low-pressure gas to high-pressure gas. It sucks low-temperature and low-pressure refrigerant gas from the intake pipe, compresses it through the operation of the motor to drive the piston, and then discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe. In order to ensure that the compressed gas has low oil content and high purity, several oil scraper rings are mounted on the piston rod and piston.

[0003] During actual use, the existing oil scraper ring often vibrates or shakes when in use, thereby reducing the oil scraping effect of the oil scraper ring and resulting in poor use effect. In addition, the inspection and replacement of the oil scraper ring is rather cumbersome, making it inconvenient to achieve fast installation and convenient disassembly and assembly.

[0004] Therefore, in order to address the above-mentioned problems of inconvenience in achieving tight installation and convenient disassembly and assembly, a piston compressor oil scraper ring can be designed. Firstly, the installation component can be plugged and fixed by a plug-in component, thereby achieving the purpose of tight installation and convenient disassembly and assembly. In addition, under the elastic force of the resistance component, the resistance component can always maintain close contact with the piston rod, thereby keeping the oil scraper ring body stable, further improving the oil scraping effect of the oil scraper ring body. Utility Model Content

[0005] In order to overcome the problem that the existing oil scraper ring of the piston compressor often vibrates or shakes during use, thereby reducing the oil scraping effect of the oil scraper ring, resulting in poor use effect, and the inspection and replacement of the oil scraper ring is cumbersome, which makes it inconvenient to achieve fast installation and convenient disassembly and assembly.

[0006] The technical solution of the utility model is: an oil scraper ring of a piston compressor, comprising a piston rod, an oil scraper ring body, an oil scraper ring, a cutting edge, a mounting assembly, a supporting assembly, a connecting assembly, a plug-in assembly and a resistance assembly; a mounting assembly is arranged outside the piston rod, an oil scraper ring body is arranged inside the mounting assembly, an oil scraper ring is arranged on the side wall of the oil scraper ring body, a cutting edge is opened on the bottom wall of the oil scraper ring body, a supporting assembly is arranged above the mounting assembly, a connecting assembly is arranged inside the supporting assembly, a plug-in assembly is arranged below the connecting assembly, and a resistance assembly is arranged on the inner wall of the oil scraper ring body.

[0007] Preferably, when the piston compressor is in use, first, the installation component can be plugged and fixed by the plug-in component, so as to achieve the purpose of tight installation and convenient disassembly and assembly. In addition, under the elastic force of the resistance component, the resistance component can always maintain close contact with the piston rod, thereby keeping the oil scraper ring stable, further improving the oil scraping effect of the oil scraper ring.

[0008] Preferably, the mounting assembly includes an oil scraper box and an oil baffle plate; the oil scraper box is arranged outside the piston rod, and the oil baffle plate is arranged at the bottom of the oil scraper box.

[0009] Preferably, the support assembly includes a connecting tube and a sliding ring; a connecting tube is arranged above the oil scraper box, a plurality of connecting tubes are arranged, a sliding ring is arranged inside the connecting tube, and a side wall of the sliding ring is slidably connected to an inner wall of the connecting tube.

[0010] Preferably, the support assembly also includes an adjusting spring; an adjusting spring is arranged inside the connecting tube, one end of the adjusting spring is fixedly connected to the inner wall of the connecting tube, and the other end of the adjusting spring is fixedly connected to the top of the sliding ring.

[0011] Preferably, the connecting assembly includes a connecting rod, a connecting ring and a connecting block; the connecting rod is arranged above the sliding ring, the connecting ring is arranged outside the connecting rod, and the connecting block is arranged above the connecting ring.

[0012] Preferably, the plug-in assembly includes a plug-in hole and a plug-in rod; the plug-in rod is arranged below the sliding ring, the plug-in hole is opened inside the oil baffle, the plug-in hole is opened in multiple groups, and the plug-in rod is snap-connected with the plug-in hole.

[0013] Preferably, the resistance assembly includes a mounting hole, an extrusion spring and a resistance block; the inner wall of the oil scraper ring body is provided with a mounting hole, and there are multiple groups of mounting holes. An extrusion spring is arranged inside the mounting hole, and a resistance block is arranged at one end of the extrusion spring.

[0014] Beneficial effects of the utility model:

[0015] 1. When the piston compressor is in use, first, the installation component can be plugged and fixed through the plug-in component, so as to achieve the purpose of tight installation and convenient disassembly and assembly. In addition, under the elastic force of the resistance component, the resistance component can always maintain close contact with the piston rod, thereby keeping the oil scraper ring stable, further improving the oil scraping effect of the oil scraper ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a first three-dimensional structural schematic diagram of a piston compressor oil scraper ring of the utility model;

[0017] Figure 2The figure shows a schematic diagram of the first partial three-dimensional structure of an oil scraping ring of a piston compressor according to the present utility model;

[0018] Figure 3 The figure shows a schematic diagram of the second partial three-dimensional structure of an oil scraping ring of a piston compressor according to the present utility model;

[0019] Figure 4 The figure shows a schematic diagram of the third partial three-dimensional structure of an oil scraping ring of a piston compressor according to the present utility model;

[0020] Explanation of reference numerals: 1, piston rod; 2, oil scraping ring body; 3, oil scraping ring; 4, cutting edge; 101, oil scraping box; 102, oil retaining plate; 201, connecting cylinder; 202, sliding ring; 203, adjusting spring; 301, connecting rod; 302, connecting ring; 303, connecting block; 401, insertion hole; 402, insertion rod; 501, mounting hole; 502, extrusion spring; 503, abutting block. Specific embodiments

[0021] The present utility model will be further described below with reference to the drawings and embodiments.

[0022] Please refer to Figures 1-4 , the present utility model provides an embodiment: an oil scraping ring of a piston compressor, including a piston rod 1, an oil scraping ring body 2, an oil scraping ring 3, a cutting edge 4, a mounting assembly, a supporting assembly, a connecting assembly, a plugging assembly and a abutting assembly; an installation assembly is arranged outside the piston rod 1, an oil scraping ring body 2 is arranged inside the installation assembly, an oil scraping ring 3 is arranged on the side wall of the oil scraping ring body 2, a cutting edge 4 is opened on the bottom wall of the oil scraping ring body 2, a supporting assembly is arranged above the installation assembly, a connecting assembly is arranged inside the supporting assembly, a plugging assembly is arranged below the connecting assembly, and an abutting assembly is arranged on the inner wall of the oil scraping ring body 2.

[0023] Please refer to Figure 2, the installation components include an oil scraping box 101 and an oil baffle 102; an oil scraping box 101 is arranged outside the piston rod 1, and an oil baffle 102 is arranged at the bottom of the oil scraping box 101; the oil scraping box 101 and the oil baffle 102 can be inserted and fixed through a connecting component; the supporting component includes a connecting cylinder 201 and a sliding ring 202; a connecting cylinder 201 is arranged above the oil scraping box 101, multiple groups of connecting cylinders 201 are arranged, a sliding ring 202 is arranged inside the connecting cylinder 201, and the side wall of the sliding ring 202 is slidably connected with the inner wall of the connecting cylinder 201; the sliding ring 202 can be slidably guided through the inside of the connecting cylinder 201; the supporting component further includes an adjusting spring 203; an adjusting spring 203 is arranged inside the connecting cylinder 201, one end of the adjusting spring 203 is fixedly connected with the inner wall of the connecting cylinder 201, and the other end of the adjusting spring 203 is fixedly connected with the upper part of the sliding ring 202; according to the pressing force generated by the elastic deformation of the adjusting spring 203, the adjusting spring 203 can apply a pressure to the connecting ring 302.

[0024] Please refer to Figures 3-4, in this embodiment, the connecting component includes a connecting rod 301, a connecting ring 302 and a connecting block 303; above the sliding ring 202 is provided a connecting rod 301, outside the connecting rod 301 is provided a connecting ring 302, and above the connecting ring 302 is provided a connecting block 303; by making one side of the oil baffle 102 abut and fit against the bottom wall of the oil scraping box 101, then, by pressing the connecting ring 302, multiple groups of connecting rods 301 can be driven to adjust and move; the plugging component includes a plugging hole 401 and a plugging rod 402; below the sliding ring 202 is provided a plugging rod 402, and inside the oil baffle 102 are opened multiple plugging holes 401, the plugging rod 402 is snap-connected with the plugging holes 401; the connecting rod 301 can drive the plugging rod 402 to adjust and move through the connecting ring 302, and then, by plugging and fixing the plugging rod 402 with the plugging holes 401, and, according to the pressing force generated by the elastic deformation of the adjusting spring 203, the adjusting spring 203 can apply a pressure to the connecting ring 302, so that the oil scraping box 101 and the oil baffle 102 can be plugged and fixed, and further the purpose of tight installation can be achieved; the abutting component includes an installation hole 501, a compression spring 502 and an abutting block 503; on the inner wall of the oil scraping ring body 2 are opened multiple installation holes 501, inside the installation holes 501 is provided a compression spring 502, and at one end of the compression spring 502 is provided an abutting block 503; when the piston rod 1 moves to the left end, the oil baffle 102 is convenient for blocking more lubricating oil, and a small amount of lubricating oil continues to enter, and after being scraped off by the oil scraping ring 3 of the oil scraping ring body 2 and entering the oil return groove along the cutting edge 4, finally returns to the crankcase oil sump. When the piston rod 1 moves back and forth left and right, the abutting block 503 moves in the moving groove, and at the same time the compression spring 502 is compressed and starts to contract, so that under the elastic force of the compression spring 502, the abutting block 503 can always keep in close contact with the piston rod 1, and further the oil scraping ring body 2 is kept stable, and the oil scraping effect of the oil scraping ring body 2 is further improved.

[0025] When the piston compressor is in use, first, by making one side of the oil baffle 102 abut and fit against the bottom wall of the oil scraping box 101, then, by pressing the connecting ring 302, multiple groups of connecting rods 301 can be driven to adjust and move, and the connecting rod 301 can drive the plugging rod 402 to adjust and move through the connecting ring 302, and then, by plugging and fixing the plugging rod 402 with the plugging holes 401;

[0026] And, according to the pressing force generated by the elastic deformation of the adjusting spring 203, the adjusting spring 203 can apply a pressure to the connecting ring 302, so that the oil scraping box 101 and the oil baffle 102 can be plugged and fixed, and further the purpose of tight installation can be achieved;

[0027] In addition, when the piston rod 1 moves to the left, the oil baffle 102 blocks more lubricating oil, while a small amount of lubricating oil continues to enter, is scraped off by the oil scraper ring 3 of the oil scraper ring 2, enters the oil return groove along the cutting edge 4, and finally returns to the crankcase oil pool;

[0028] When the piston rod 1 moves back and forth left and right, the resistance block 503 moves in the movable groove, and at the same time the extrusion spring 502 is squeezed and begins to shrink. Therefore, under the elastic force of the extrusion spring 502, the resistance block 503 can always maintain close contact with the piston rod 1, thereby keeping the oil scraper ring 2 stable, further improving the oil scraping effect of the oil scraper ring 2.

[0029] Through the above steps, when the piston compressor is in use, first, the installation component can be plugged and fixed through the plug-in component, so as to achieve the purpose of tight installation and convenient disassembly and assembly. In addition, under the elastic force of the resistance component, the resistance component can always maintain close contact with the piston rod 1, thereby keeping the oil scraper ring body 2 stable, and further improving the oil scraping effect of the oil scraper ring body 2.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A piston compressor oil scraping ring, comprising a piston rod (1); characterized in that: It also includes an oil scraper ring body (2), an oil scraper ring (3), a cutting edge (4), a mounting assembly, a supporting assembly, a connecting assembly, a plug-in assembly and a resisting assembly; the mounting assembly is arranged outside the piston rod (1), the oil scraper ring body (2) is arranged inside the mounting assembly, the oil scraper ring (3) is arranged on the side wall of the oil scraper ring body (2), the cutting edge (4) is opened on the bottom wall of the oil scraper ring body (2), the supporting assembly is arranged above the mounting assembly, the connecting assembly is arranged inside the supporting assembly, the plug-in assembly is arranged below the connecting assembly, and the resisting assembly is arranged on the inner wall of the oil scraper ring body (2).

2. The oil scraping ring of a piston compressor according to claim 1, characterized in that: The mounting assembly comprises an oil scraper box (101) and an oil baffle plate (102); the oil scraper box (101) is arranged outside the piston rod (1), and the oil baffle plate (102) is arranged at the bottom of the oil scraper box (101).

3. The oil scraping ring of a piston compressor according to claim 2, characterized in that: The support assembly comprises a connecting cylinder (201) and a sliding ring (202); the connecting cylinder (201) is arranged above the oil scraper box (101), the connecting cylinder (201) is provided with multiple groups, the sliding ring (202) is arranged inside the connecting cylinder (201), and the side wall of the sliding ring (202) is slidably connected to the inner wall of the connecting cylinder (201).

4. The oil scraping ring of a piston compressor according to claim 3, characterized in that: The support assembly also includes an adjusting spring (203); the adjusting spring (203) is arranged inside the connecting tube (201), one end of the adjusting spring (203) is fixedly connected to the inner wall of the connecting tube (201), and the other end of the adjusting spring (203) is fixedly connected to the top of the sliding ring (202).

5. The oil scraping ring of a piston compressor according to claim 3, characterized in that: The connection assembly comprises a connection rod (301), a connection ring (302) and a connection block (303); the connection rod (301) is arranged above the sliding ring (202), the connection ring (302) is arranged outside the connection rod (301), and the connection block (303) is arranged above the connection ring (302).

6. The oil scraping ring of a piston compressor according to claim 3, characterized in that: The plug-in assembly comprises a plug-in hole (401) and a plug-in rod (402); the plug-in rod (402) is arranged below the sliding ring (202), the plug-in hole (401) is provided inside the oil baffle plate (102), the plug-in hole (401) is provided with a plurality of groups, and the plug-in rod (402) is snap-fitted and connected with the plug-in hole (401).

7. A scraping oil ring for a piston compressor according to claim 6, characterized in that: The resistance component comprises a mounting hole (501), a pressing spring (502) and a resistance block (503); the inner wall of the oil scraper ring body (2) is provided with a mounting hole (501), a plurality of mounting holes (501) are provided, a pressing spring (502) is arranged inside the mounting hole (501), and a resistance block (503) is arranged at one end of the pressing spring (502).

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