Reciprocating compressor oil wiper

Abstract

The utility model discloses a reciprocating compressor oil scraper which comprises a metal pore plate, the surface of the metal pore plate is fixedly connected with an annular shell block, the annular shell block is fixedly connected with a block partition plate, a sealing ring is arranged in an inner cavity of the annular shell block, a short rod is welded to the inner wall of the annular shell block, and the short rod is fixedly connected with the metal pore plate. The surface of the short rod is fixedly connected with a fixed circular plate and provided with an annular groove, and the inner wall of the annular groove is slidably connected with a sliding ring. Elastic extrusion force is applied to the sliding ring through the spring, so that the sliding ring drives the sleeve block to apply inward extrusion force to the surface of the sealing ring, displacement of the sliding ring can be limited through the arrangement of the annular groove, and the stability of the position of the sliding ring in the sliding process is guaranteed; therefore, elastic inward extrusion force can be applied to the outer side of the sealing ring, the attaching tightness of the sealing ring and the piston rod is improved, and the scraping effectiveness of the sealing ring on lubricating oil on the surface of the piston rod is improved.

Description

Technical Field

[0001] This utility model belongs to the field of oil scraper technology, and in particular relates to a reciprocating compressor oil scraper. Background Technology

[0002] Reciprocating compressors are a common type of compressor that compresses gases through the reciprocating motion of a piston. These compressors are typically used in industrial and commercial applications, such as air conditioning systems, refrigeration equipment, cooling systems, and industrial gas compression. During operation, the primary heat dissipation pathway is through the oil, cooled packing, and cylinder block. Therefore, excessive oil loss from the compressor's oil tank can be addressed by installing an oil scraper on the piston rod surface. This reduces the obstruction to oil flow and minimizes the amount of lubricating oil carried to the outside of the piston rod, significantly reducing oil consumption.

[0003] In reciprocating compressors, the oil scraper removes lubricating oil from the piston rod surface through a built-in sealing ring. After long-term use, the contact tightness between the sealing ring and the piston rod surface will decrease, thereby reducing the effectiveness of the sealing ring in removing lubricating oil from the piston rod surface. Therefore, a reciprocating compressor oil scraper is needed that can apply an elastic inward compressive force to the outside of the sealing ring, thereby improving the tightness of the seal between the sealing ring and the piston rod, and thus improving the effectiveness of the sealing ring in removing lubricating oil from the piston rod surface. Utility Model Content

[0004] The purpose of this invention is to provide a reciprocating compressor oil scraper that applies an elastic inward compressive force to the outer side of the sealing ring, thereby improving the tightness of the seal ring and the piston rod, and thus improving the effectiveness of the seal ring in scraping lubricating oil off the piston rod surface, in order to solve the technical problems mentioned in the background art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A reciprocating compressor oil scraper includes a metal orifice plate: an annular shell block is fixedly connected to the surface of the metal orifice plate, a partition plate is fixedly connected to the annular shell block, a sealing ring is provided in the inner cavity of the annular shell block, a short rod is welded to the inner wall of the annular shell block, a fixed circular plate is fixedly connected to the surface of the short rod and an annular groove is formed thereon, a sliding ring is slidably connected to the inner wall of the annular groove, a spring is fixedly connected between the sliding ring and the fixed circular plate, and a sleeve block is fixedly connected to the surface of the sliding ring.

[0006] Preferably, a compression pad is adhered to the surface of the sleeve block, and the compression pad abuts against the sealing ring.

[0007] Preferably, the inner wall of the sliding ring is embedded with rolling balls, and the rolling balls are in contact with the inner wall of the annular groove.

[0008] Preferably, a connecting rod is fixedly connected to the surface of the short rod.

[0009] Preferably, a reinforcing ring block is fixedly connected to the surface of the metal perforated plate, and the reinforcing ring block is located in the inner cavity of the ring shell block.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model applies elastic compressive force to the sliding ring by a spring, causing the sliding ring to drive the sleeve block to apply inward compressive force to the surface of the sealing ring. Furthermore, the annular groove can limit the displacement of the sliding ring, ensuring the stability of its position during sliding. This achieves the goal of applying elastic inward compressive force to the outer side of the sealing ring, thereby improving the tightness of the seal ring and the piston rod, and thus improving the effectiveness of the sealing ring in scraping lubricating oil off the piston rod surface.

[0012] 2. By setting the compression pad, the surface of the sleeve block is protected, which avoids the situation where the surface of the sealing ring is damaged by compression when the sleeve block comes into direct contact with the sealing ring, thereby ensuring the integrity of the appearance of the sealing ring.

[0013] 3. By using ball bearings, this utility model provides padding between the sliding ring and the annular groove, reducing friction between them and improving the smoothness of the sliding displacement of the sliding ring on the surface of the annular groove.

[0014] 4. By setting up connecting rods, this utility model enables short rods to be connected into a whole, which improves the integrity of the structural connection and thus improves the stability of the structure.

[0015] 5. By setting up reinforcing ring blocks, this utility model strengthens the metal perforated plate, avoiding the rigidity damage that would occur due to the circular holes on the surface of the metal perforated plate, thereby improving the structural rigidity and strength of the metal perforated plate. Attached Figure Description

[0016] in:

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of a sealing ring and a short rod according to an embodiment of the present invention;

[0019] Figure 3 This is a three-dimensional schematic diagram of a sliding ring and a spring according to an embodiment of the present invention;

[0020] Figure 4 This is one embodiment of the present utility model. Figure 2 A magnified view of point A in the middle;

[0021] Figure 5 This is one embodiment of the present utility model. Figure 3 A magnified view of point B in the middle.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Metal perforated plate, 2. Ring shell block, 3. Partition plate, 4. Sealing ring, 5. Short rod, 6. Fixed circular plate, 7. Annular groove, 8. Sliding ring, 9. Spring, 10. Sleeve block, 11. Extrusion pad block, 12. Ball bearing, 13. Connecting rod, 14. Reinforcing ring block. Detailed Implementation

[0024] In the following description, embodiments of the reciprocating compressor oil scraper of the present invention will be described with reference to the accompanying drawings. Example 1

[0025] Figure 1-5 This invention illustrates a reciprocating compressor oil scraper according to an embodiment of the present invention, comprising a metal perforated plate 1; an annular shell block 2 is fixedly connected to the surface of the metal perforated plate 1; an annular shell block 3 is fixedly connected to the annular shell block 2; a sealing ring 4 is provided in the inner cavity of the annular shell block 2; a short rod 5 is welded to the inner wall of the annular shell block 2; a fixed circular plate 6 is fixedly connected to the surface of the short rod 5 and has an annular groove 7; a sliding ring 8 is slidably connected to the inner wall of the annular groove 7; a spring 9 is fixedly connected between the sliding ring 8 and the fixed circular plate 6; a sleeve block 10 is fixedly connected to the surface of the sliding ring 8; and a compression fitting is adhered to the surface of the sleeve block 10. The pad 11 is pressed against the sealing ring 4. The pad 11 protects the surface of the sleeve block 10, preventing the sealing ring 4 from being damaged by compression when the sleeve block 10 directly contacts the sealing ring 4, thus ensuring the integrity of the appearance of the sealing ring 4. The inner wall of the sliding ring 8 is embedded with rolling balls 12. The balls 12 fit against the inner wall of the annular groove 7. The balls 12 protect the sliding ring 8 and the annular groove 7, reducing the friction between them and improving the smoothness of the sliding displacement of the sliding ring 8 on the surface of the annular groove 7. Example 2

[0026] Figure 1-5This invention illustrates an embodiment of a reciprocating compressor oil scraper, comprising a metal perforated plate 1; an annular shell block 2 is fixedly connected to the surface of the metal perforated plate 1; an annular shell block 2 is fixedly connected to a partition plate 3; a sealing ring 4 is provided in the inner cavity of the annular shell block 2; a short rod 5 is welded to the inner wall of the annular shell block 2; a fixed circular plate 6 is fixedly connected to the surface of the short rod 5 and has an annular groove 7; a sliding ring 8 is slidably connected to the inner wall of the annular groove 7; a spring 9 is fixedly connected between the sliding ring 8 and the fixed circular plate 6; and a sleeve is fixedly connected to the surface of the sliding ring 8. Block 10 and short rod 5 are fixedly connected to a connecting rod 13. The connecting rod 13 connects the short rod 5 into a whole, improving the overall integrity of the structural connection and thus improving the stability of the structure. The surface of the metal perforated plate 1 is fixedly connected to a reinforcing ring block 14, which is located in the inner cavity of the ring shell block 2. The reinforcing ring block 14 strengthens the metal perforated plate 1, preventing the metal perforated plate 1 from being damaged due to the round holes on its surface, thereby improving the structural rigidity of the metal perforated plate 1.

[0027] Working principle: When using this utility model, the user places the metal perforated plate 1 and the annular block 2 onto the surface of the piston rod of the reciprocating compressor, allowing the sealing ring 4 to scrape off the lubricating oil on the piston rod surface. When the gap between the sealing ring 4 and the piston rod increases after a period of use, the spring 9 applies an elastic compressive force to the sliding ring 8, causing the sliding ring 8 to slide on the inner wall of the annular groove 7 and drive the sleeve block 10 to apply an inward compressive force to the surface of the sealing ring 4, allowing the sealing ring 4 to gather and fit against the piston rod surface. Furthermore, the annular groove 7 limits the displacement of the sliding ring 8, ensuring the stability of its position during sliding. This achieves the application of an elastic inward compressive force to the outer side of the sealing ring, thereby improving the tightness of the fit between the sealing ring and the piston rod, and thus improving the effectiveness of the sealing ring in scraping off the lubricating oil from the piston rod surface.

[0028] In summary, this reciprocating compressor oil scraper applies elastic compressive force to the sliding ring 8 via the spring 9, causing the sliding ring 8 to drive the sleeve block 10 to apply inward compressive force to the surface of the sealing ring 4. Furthermore, the annular groove 7 limits the displacement of the sliding ring 8, ensuring the stability of its position during sliding. This achieves the goal of applying elastic inward compressive force to the outer side of the sealing ring, thereby improving the tightness of the seal ring and piston rod fit, and ultimately enhancing the effectiveness of the sealing ring in scraping lubricating oil from the piston rod surface.

Claims

1. A reciprocating compressor oil scraper, characterized in that, Includes a metal perforated plate (1): a ring shell block (2) is fixedly connected to the surface of the metal perforated plate (1), a ring block partition (3) is fixedly connected to the ring shell block (2), a sealing ring (4) is provided in the inner cavity of the ring shell block (2), a short rod (5) is welded to the inner wall of the ring shell block (2), a fixed circular plate (6) is fixedly connected to the surface of the short rod (5) and an annular groove (7) is provided, a sliding ring (8) is slidably connected to the inner wall of the annular groove (7), a spring (9) is fixedly connected between the sliding ring (8) and the fixed circular plate (6), and a sleeve block (10) is fixedly connected to the surface of the sliding ring (8).

2. The reciprocating compressor oil scraper according to claim 1, characterized in that, A compression pad (11) is attached to the surface of the sleeve block (10), and the compression pad (11) abuts against the sealing ring (4).

3. The reciprocating compressor oil scraper according to claim 2, characterized in that, The inner wall of the sliding ring (8) is fitted with a rolling ball (12), which is in contact with the inner wall of the annular groove (7).

4. The reciprocating compressor oil scraper according to claim 3, characterized in that, A connecting rod (13) is fixedly connected to the surface of the short rod (5).

5. The reciprocating compressor oil scraper according to claim 4, characterized in that, A reinforcing ring block (14) is fixedly connected to the surface of the metal perforated plate (1), and the reinforcing ring block (14) is located in the inner cavity of the ring shell block (2).

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