Oil scraper ring structure of compressor

Abstract

The utility model provides a compressor oil scraper ring structure which comprises a piston rod, an oil baffle plate and an upper sealing seat, and the oil baffle plate and the upper sealing seat are arranged on the outer side of the piston rod. The oil scraper ring assembly is arranged on the outer side of the piston rod. The oil scraper ring structure of the compressor solves the problems that in the using process of the device, a common oil scraper ring is provided with a single cutting edge, the cutting edge is provided with a groove, engine oil gathered in the groove moves upwards along with friction of the wall of a piston rod and splashes, the due oil scraping effect cannot be achieved, the operation stability of the compressor is reduced, and the service life of the compressor is prolonged. The problems that when the oil scraper rings are connected, the oil scraper rings are connected, the tightness degree is inconvenient to adjust when the outer sides of the oil scraper rings are hooped by springs, the hooping effect of the oil scraper rings on a piston rod is reduced, and when the oil scraper rings are connected, the oil scraper rings and the piston rod are inconvenient to position, connection dislocation is caused, and assembling convenience is reduced are solved.

Description

Technical Field

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

[0002] The function of the oil scraper ring is to scrape off the excess oil on the cylinder wall and spread a uniform oil film on the cylinder wall, which can not only prevent the oil from entering the cylinder and burning, but also reduce the wear of the piston, piston ring and cylinder wall. When the equipment is running, the piston rod will carry the lubricating oil in the crankcase. At this time, the oil scraper ring is static relative to the piston rod. When the piston rod moves upward, the oil scraper ring scrapes off the lubricating oil on the piston rod through the inner circular blade, and the lubricating oil flows back to the crankcase from the oil drain channel, so as to ensure the cleanliness of the piston rod and prevent the lubricating oil from being brought into the cylinder.

[0003] The existing compressor oil scraper ring structure is in use. Usually, the oil scraper ring has a single cutting edge and a groove on the cutting edge. When the piston rod moves downward, the upper cutting edge should scrape the oil. However, due to oil accumulation in the groove, the oil stains on the piston rod cannot be effectively scraped off. When the piston rod moves upward, the oil accumulated in the groove moves upward with the friction of the piston rod wall and splashes. The oil scraping effect cannot be achieved, which reduces the stability of the compressor operation. Moreover, when the spring is used to tighten the outer side of the oil scraper ring, it is not convenient to adjust the tightness, which reduces the clamping effect of the oil scraper ring on the piston rod. Moreover, when the oil scraper rings are connected, it is not convenient to position the two, resulting in misalignment of the connection, which reduces the convenience of assembly.

[0004] Therefore, it is necessary to provide a new compressor oil scraper ring structure to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a compressor oil scraper ring structure with good oil scraping effect, easy spring adjustment, and convenient assembly and connection.

[0006] The utility model provides a compressor oil scraper ring structure, comprising a piston rod, and an oil baffle and an upper sealing seat arranged on the outer side of the piston rod; and also comprising: an oil scraper ring assembly arranged on the outer side of the piston rod, comprising a first component block and a second component block fixed to the outer side of the piston rod, an oil scraper member arranged on the inner side of the first component block, a flow guide member arranged on the top of the first component block, an assembly groove opened on the outer side of the first component block, a limit member arranged on the inner side of the assembly groove, a connecting member arranged inside the first component block and the second component block, a clamping block fixed on one side of the first component block, and a clamping groove opened on the other side of the first component block.

[0007] As a compressor oil scraper ring structure provided by the utility model, the oil scraper comprises an upper cutting edge and a lower cutting edge fixed to the inner side of a first component block, and a groove opened on the inner side of the first component block.

[0008] As a compressor oil scraper ring structure provided by the utility model, the guide member includes a diverter block fixed on the top of the first component block, and a guide groove arranged on the outside of the diverter block.

[0009] As a compressor oil scraper ring structure provided by the utility model, the limiting member includes a spring arranged on the inner side of the assembly groove, and a first connecting seat fixed to one end of the spring.

[0010] As a compressor oil scraper ring structure provided by the utility model, the limiting member also includes a locking hook fixed to one side of the first connecting seat, and a second connecting seat fixed to the other end of the spring.

[0011] As a compressor oil scraper ring structure provided by the utility model, the limiting member also includes an adjustment ring fixed to one side of the second connecting seat, and a limiting hook fixed to the inner side of the assembly groove.

[0012] As a compressor oil scraper ring structure provided by the utility model, the connecting member includes a positioning block fixed to the top of the first component block, and a positioning groove opened at the bottom of the first component block.

[0013] As a compressor oil scraper ring structure provided by the utility model, the connecting member also includes a bolt arranged inside the first component block and a threaded hole opened inside the second component block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The compressor oil scraper ring structure has an upper cutting edge and a lower cutting edge with a cutting angle of degrees. When the piston rod moves downward, the bevel cutting edge can scrape the oil on the piston rod more efficiently. The lubricating oil will not accumulate at the cutting edge, thereby improving the oil scraping effect. The setting of the limiter facilitates the adjustment of the tightness of the spring and can prevent the spring from shifting, thereby improving the stability of the oil scraper ring during operation. The setting of the connecting piece facilitates the connection and positioning of the oil scraper rings, thereby improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a preferred embodiment of the compressor oil scraper ring structure provided by the utility model;

[0017] Figure 2 It is a structural schematic diagram of the oil scraper ring assembly shown in the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the bottom of the first component block shown in the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the first component block shown in the utility model.

[0020] Numbers in the figure: 1. piston rod; 2. oil scraper ring assembly; 21. first component block; 22. second component block; 23. oil scraper; 231. upper cutting edge; 232. lower cutting edge; 233. slot; 24. guide member; 241. diverter block; 242. guide groove; 25. assembly groove; 26. limit member; 261. spring; 262. first connecting seat; 263. locking hook; 264. second connecting seat; 265. adjusting ring; 266. limit hook; 27. connecting member; 271. positioning block; 272. positioning groove; 273. bolt; 274. threaded hole; 28. clamping block; 29. ​​clamping groove; 3. oil baffle plate; 4. upper sealing seat. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in Figure 1 A schematic structural diagram of a preferred embodiment of the compressor oil scraper ring structure provided by the utility model; Figure 2 It is a structural schematic diagram of the oil scraper ring assembly shown in the utility model; Figure 3 This is a schematic diagram of the structure of the bottom of the first component block shown in the utility model; Figure 4 The structure diagram of the first component block shown in the utility model is a compressor oil scraper ring structure, comprising a piston rod 1, and an oil baffle plate 3 and an upper sealing seat 4 arranged on the outer side of the piston rod 1.

[0023] In the specific implementation process, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the oil scraper ring assembly 2 arranged on the outer side of the piston rod 1 includes a first component block 21 and a second component block 22 fixed to the outer side of the piston rod 1, an oil scraper member 23 arranged on the inner side of the first component block 21, a guide member 24 arranged on the top of the first component block 21, an assembly groove 25 opened on the outer side of the first component block 21, a limit member 26 arranged on the inner side of the assembly groove 25, a connecting member 27 arranged inside the first component block 21 and the second component block 22, a clamping block 28 fixed to one side of the first component block 21, and a clamping groove 29 opened on the other side of the first component block 21.

[0024] The oil scraper 23 includes an upper cutting edge 231 and a lower cutting edge 232 fixed to the inner side of the first component block 21 , and a slot 233 opened on the inner side of the first component block 21 .

[0025] The flow guide 24 includes a flow dividing block 241 fixed to the top of the first component block 21 , and a flow guiding groove 242 disposed outside the flow dividing block 241 .

[0026] The limiting member 26 includes a spring 261 disposed inside the assembly groove 25 and a first connecting seat 262 fixed to one end of the spring 261 .

[0027] The limiting member 26 further includes a locking hook 263 fixed to one side of the first connecting seat 262 , and a second connecting seat 264 fixed to the other end of the spring 261 .

[0028] The limiting member 26 further includes an adjusting ring 265 fixed to one side of the second connecting seat 264 , and a limiting hook 266 fixed to the inner side of the assembly groove 25 .

[0029] The connecting member 27 includes a positioning block 271 fixed to the top of the first component block 21 and a positioning slot 272 opened at the bottom of the first component block 21 .

[0030] The connecting member 27 further includes a bolt 273 disposed inside the first component block 21 and a threaded hole 274 opened inside the second component block 22 .

[0031] It should be noted that: the first component block 21 is a three-petal type, and the first component block 21 and the second component block 22 have the same structure. After assembly, they form an oil scraper ring body. The upper cutting edge 231 and the lower cutting edge 232 are cut at an angle of 45 degrees. When the piston rod 1 moves downward, the oblique cutting edge can scrape the oil on the piston rod 1 more efficiently, and the lubricating oil will not gather at the cutting edge. By setting the upper cutting edge 231, the contact area between the oil scraper ring and the piston rod 1 is increased, and the oil scraping effect is improved. By setting the diverter block 241 and the guide groove 242, it is convenient for the lubricating oil to flow smoothly back to the crankcase from the guide groove 242. By setting the spring 261, it is convenient to hold the piston rod 1 tightly through the radial force provided by the spring 261 after the oil scraper ring is assembled. By setting the locking hook 263, it is convenient to limit the adjusting ring 265. By setting the adjusting ring 265, it is convenient to make the locking hook 263 stuck in a suitable adjusting ring 265, so as to adjust the spring 2 The tightness of 61 improves the convenience of using the limit member 26. By setting the limit hook 266, it is convenient to fix the assembled spring 261, prevent the spring 261 from deflecting, and improve the stability of the oil scraper ring during operation. By setting multiple oil scraper rings, this structure can ensure that the device continues to work after one of the oil scraper rings is damaged, thereby improving the reliability of the oil scraper ring. By setting the positioning block 271 and the positioning groove 272, it is convenient to connect and position the oil scraper rings, thereby improving the assembly efficiency. By setting the bolt 273 and the threaded hole 274, it is convenient to fix the oil scraper ring body after the positioning is completed, thereby connecting the two oil scraper rings into a whole, which can be flexibly combined and paired for use in actual use. By setting the clamping block 28 and the clamping groove 29, it is convenient to splice the first component blocks 21, so that the three first component blocks 21 are assembled into a whole oil scraper ring, thereby improving the assembly efficiency.

[0032] The working principle of a compressor oil scraper ring structure provided by the utility model is as follows:

[0033] During use, when the oil scraper ring needs to be assembled, the block 28 of one of the first component blocks 21 is inserted into the slot 29 of another first component block 21, and the three first component blocks 21 are spliced ​​in sequence. Then, the spring 261 is inserted into the inner side of the assembly slot 25, and the locking hook 263 is inserted into the adjusting ring 265 suitable for the diameter of the oil scraper ring to keep the spring 261 at a suitable tightness. Then, the spring 261 is slightly rotated so that the multiple limiting hooks 266 respectively hook the spring 261 to limit it and prevent the spring 261 from shifting. When the two oil scraper ring bodies need to be connected, the positioning block 271 at the top of the second component block 22 at the bottom is aligned with the positioning slot 272 of the first component block 21 at the top to complete the preliminary docking, and then the bolt 273 is screwed into the threaded hole 274 to complete the fixed connection.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A compressor oil scraper ring structure, characterized in that: It comprises a piston rod (1), an oil baffle plate (3) and an upper sealing seat (4) arranged on the outside of the piston rod (1); and further comprises: The oil scraper ring assembly (2) arranged on the outside of the piston rod (1) comprises a first component block (21) and a second component block (22) fixed on the outside of the piston rod (1), an oil scraper member (23) arranged on the inside of the first component block (21), a flow guide member (24) arranged on the top of the first component block (21), an assembly groove (25) opened on the outside of the first component block (21), a stop member (26) arranged on the inside of the assembly groove (25), a connecting member (27) arranged inside the first component block (21) and the second component block (22), a clamping block (28) fixed on one side of the first component block (21), and a clamping groove (29) opened on the other side of the first component block (21).

2. The compressor oil scraper ring structure according to claim 1, characterized in that: The oil scraper (23) comprises an upper cutting edge (231) and a lower cutting edge (232) fixed to the inner side of the first component block (21), and a slot (233) opened on the inner side of the first component block (21).

3. The compressor oil scraper ring structure according to claim 1, characterized in that: The flow guide (24) comprises a flow diversion block (241) fixed to the top of the first component block (21), and a flow diversion groove (242) arranged outside the flow diversion block (241).

4. The compressor oil scraper ring structure according to claim 1, characterized in that: The limiting member (26) comprises a spring (261) arranged inside the assembly groove (25), and a first connecting seat (262) fixed to one end of the spring (261).

5. The compressor oil scraper ring structure according to claim 4, characterized in that: The limiting member (26) further comprises a locking hook (263) fixed to one side of the first connecting seat (262), and a second connecting seat (264) fixed to the other end of the spring (261).

6. The compressor oil scraper ring structure according to claim 4, characterized in that: The limiting member (26) further comprises an adjusting ring (265) fixed to one side of the second connecting seat (264), and a limiting hook (266) fixed to the inner side of the assembly groove (25).

7. The compressor oil scraper ring structure according to claim 1, characterized in that: The connecting member (27) comprises a positioning block (271) fixed to the top of the first component block (21), and a positioning groove (272) opened at the bottom of the first component block (21).

8. The compressor oil scraper ring structure according to claim 7, characterized in that: The connecting member (27) further comprises a bolt (273) arranged inside the first component block (21), and a threaded hole (274) opened inside the second component block (22).

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