Oil wiper of compressor

Abstract

The utility model relates to an oil wiper of a compressor. The oil wiper is characterized in that an oil wiper flange is arranged on a piston rod; the two oil scraping boxes are oppositely arranged to form a space for arranging an oil scraping ring, and one oil scraping box is connected with an oil scraper flange; the oil return box is connected to the face, back to the oil wiper flange, of the oil scraping box. According to the utility model, the oil scraper flange is arranged on the piston rod, and the two oil scraper boxes which are oppositely arranged are arranged to form the space of the oil scraper ring, so that the lubricating oil on the piston rod can be more effectively surrounded and scraped through the structure.

Description

Technical Field

[0001] This utility model relates to the technical field of compressor oil scraping components, and more particularly to the technical field of a compressor oil scraper. Background Technology

[0002] Polycrystalline silicon exhaust gas recovery requires a reciprocating compressor. The cylinder and piston rings, support rings, and packing seal rings of this reciprocating compressor are oil-free lubricated, while the piston rings, support rings, and packing seal rings are made of polytetrafluoroethylene-filled graphite. The compressor's moving parts are oil-lubricated, and the unit is equipped with an independent oil station. Circulating lubricating oil enters the oil filter and lubricating oil pump from the crankcase. The lubricating oil pump delivers the lubricating oil to the oil filter, oil cooler, and then to various lubrication points of the compressor. Oil scrapers are installed at the crankcase and intermediate body connections of each stage. The oil scrapers remove lubricating oil from the piston rod circumference and return it to the crankcase through the oil return hole of the oil scraper assembly.

[0003] However, existing oil scrapers cannot effectively remove the lubricating oil carried out by the piston rod, which will lead to excessive wear of the piston rod and packing seal ring, affecting the efficiency of the compressor and the service life of the parts. Utility Model Content

[0004] The present invention aims to improve the scraping efficiency of the oil scraper on the lubricating oil carried out by the piston rod, thereby reducing excessive wear on the piston rod and packing seal ring, and avoiding affecting the efficiency of the compressor and the service life of the components.

[0005] To solve the above-mentioned technical problems, this utility model provides a compressor oil scraper, the system comprising:

[0006] Oil scraper flange, wherein the oil scraper flange is located on the piston rod;

[0007] Two scraper boxes are arranged opposite each other to form a space for a scraper ring, and one of the scraper boxes is connected to the scraper flange.

[0008] The oil return box is connected to the side of the scraper box that faces away from the scraper flange.

[0009] Furthermore, the oil scraper ring includes multiple oil scraper ring segments, one of which is provided with a positioning pin hole.

[0010] Furthermore, all the oil scraper rings are provided with a tension spring structure on their outer periphery.

[0011] Furthermore, the scraper ring has an inwardly facing central end face, and the scraper ring has a plurality of inwardly extending grooves on its upper end face, all of which are circumferentially arranged on the scraper ring.

[0012] Furthermore, the circumferential angle between any two of the grooves ranges from 30° to 45°.

[0013] Furthermore, the central end face is provided with a first annular groove and a second annular groove, the central end face and the wall of the first annular groove form a first cutting edge, and the central end face and the wall of the second annular groove form a second cutting edge.

[0014] Furthermore, the second annular groove is provided with an annular notch.

[0015] Furthermore, the wall curvature of the first annular groove is consistent with that of the second annular groove, and the protrusion direction of the wall of the first annular groove is both toward the central axis of the oil scraper ring.

[0016] Compared with the prior art, the technical solution provided by the embodiments of this utility model can achieve at least the following beneficial effects:

[0017] First, this utility model sets an oil scraper flange on the piston rod and equips it with two oppositely arranged oil scraper boxes to form a space for the oil scraper ring. This structure can more effectively surround and scrape off the lubricating oil on the piston rod.

[0018] Secondly, this utility model uses an oil scraper ring composed of multiple oil scraper ring segments, with positioning pin holes provided on the oil scraper ring segments, thereby ensuring accurate positioning and stable installation of the oil scraper ring.

[0019] Third, this utility model has a first annular groove and a second annular groove on the central end face, and a first cutting edge and a second cutting edge are formed on the wall surface. This cutting edge structure can more effectively scrape off the lubricating oil, and the design of the annular notch can further optimize the flow path of the lubricating oil and reduce the residue of the lubricating oil. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0021] Figure 1 This is a schematic diagram of an oil scraper ring according to the present invention.

[0022] Figure 2 This is a top view of an oil scraper ring according to the present invention.

[0023] Figure 3 for Figure 2 A cross-sectional view along the AA direction.

[0024] In the picture:

[0025] 1. Scraper flange

[0026] 2. Oil scraper box

[0027] 3. Oil scraper ring

[0028] 31. Oil scraper ring

[0029] 311. Locating pin hole

[0030] 312. Tension Spring Structure

[0031] 32. Center end face

[0032] 321. First annular groove

[0033] 321a, First cutting edge

[0034] 322. Second annular groove

[0035] 322a, Second cutting edge

[0036] 322b, Annular notch

[0037] 33. Trench

[0038] 4. Oil return box Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0040] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0041] refer to Figures 1 to 3 This utility model provides an oil scraper ring, comprising:

[0042] Oil scraper flange 1, oil scraper flange 1 is located on piston rod 10;

[0043] Two scraper boxes 2 are arranged opposite each other to form a space for setting the scraper ring 3, and one of the scraper boxes 2 is connected to the scraper flange 1.

[0044] Oil return box 4 is connected to the side of oil scraper box 2 that is opposite to oil scraper flange 1.

[0045] This invention, through the design of the oil scraper ring 3, can more effectively scrape off the oil film on the piston rod 10, reducing the resistance of the oil film to the movement of the piston rod 10 and improving mechanical efficiency. Furthermore, by incorporating the oil return box 4, this invention can collect the scraped oil, achieving oil recycling and reuse, reducing oil waste and lowering maintenance costs.

[0046] In a preferred embodiment, the oil scraper ring 3 includes multiple oil scraper ring segments 31, one of which is provided with a positioning pin hole 311. The arrangement of multiple oil scraper ring segments 31 can more comprehensively and effectively scrape the oil film on the piston rod 10, reducing the continuous and uniform tension provided by the oil film to the live tension spring structure 312. This ensures that the oil scraper ring 31 maintains close contact with the piston rod 10 throughout the entire working cycle, which is crucial for scraping the oil film.

[0047] In a preferred embodiment, all scraper rings 31 are provided with a tension spring structure 312 on their outer periphery. The tension spring structure 312 provides continuous and uniform tension to the scraper rings 31, ensuring that the scraper rings 31 fit tightly against the piston rod 10, thereby more effectively scraping the oil film on the piston rod 10. The continuous and uniform tension provided by the tension spring structure 312 ensures that the scraper rings 31 maintain close contact with the piston rod 10 throughout the entire working cycle, which is crucial for scraping the oil film.

[0048] In a preferred embodiment, the oil scraper ring 3 has an inwardly facing central end face 32, and the oil scraper ring 3 has multiple inwardly extending grooves 33 on its upper end face, all of which are circumferentially arranged in the oil scraper ring 3. The multiple inwardly extending grooves 33 on the upper end face of the oil scraper ring 3 increase the contact area between the oil scraper ring and the oil film, improving oil scraping efficiency. Furthermore, the circumferentially arranged grooves 33 ensure uniform pressure distribution of the oil scraper ring 3 on the piston rod 10, avoiding wear or incomplete oil scraping caused by uneven pressure. The circumferentially arranged grooves 33 also improve the stability of the oil scraper ring 3, reducing vibration or noise caused by uneven oil scraping.

[0049] In a preferred embodiment, the circumferential angle between every two grooves 33 ranges from 30° to 45°.

[0050] In a preferred embodiment, a first annular groove 321 and a second annular groove 322 are formed on the central end face 32. The central end face 32 and the wall surface of the first annular groove 321 form a first cutting edge 321a, and the central end face 32 and the wall surface of the second annular groove 322 form a second cutting edge 322a. These two cutting edges can more effectively scrape off the oil film on the piston rod 10.

[0051] In a preferred embodiment, the second annular groove 322 is provided with an annular notch 322b; the annular notch 322b can serve as a collection point for the oil film, helping to concentrate and guide the oil film, thereby improving the oil scraping efficiency of the scraper ring 3. The design of the annular notch 322b can improve the structural strength and durability of the scraper ring 3 while maintaining a lightweight structure.

[0052] The above description is merely an exemplary embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. The scope of protection of the present utility model is determined by the appended claims.

Claims

1. A compressor oil scraper, characterized in that, include: Oil scraper flange, wherein the oil scraper flange is located on the piston rod; Two scraper boxes are arranged opposite each other to form a space for a scraper ring, and one of the scraper boxes is connected to the scraper flange. The oil return box is connected to the side of the scraper box that faces away from the scraper flange.

2. The compressor oil scraper according to claim 1, characterized in that, The oil scraper ring includes multiple oil scraper ring segments, one of which is provided with a positioning pin hole.

3. The compressor oil scraper according to claim 1, characterized in that, All oil scraper rings have a tension spring structure on their outer periphery.

4. The compressor oil scraper according to claim 1, characterized in that, The oil scraper ring has an inward-facing end face, and the oil scraper ring has a plurality of inward-facing grooves on its upper end face, all of which are circumferentially arranged on the oil scraper ring.

5. A compressor oil scraper according to claim 4, characterized in that, The circumferential angle between any two of the grooves ranges from 30° to 45°.

6. A compressor oil scraper according to claim 4, characterized in that, The central end face has a first annular groove and a second annular groove. The central end face and the wall of the first annular groove form a first cutting edge, and the central end face and the wall of the second annular groove form a second cutting edge.

7. A compressor oil scraper according to claim 6, characterized in that, The second annular groove has an annular notch.

8. A compressor oil scraper according to claim 6, characterized in that, The wall curvature of the first annular groove is the same as that of the second annular groove, and the protrusion direction of the wall of the first annular groove is towards the central axis of the oil scraper ring.

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