Lubricating structure with filtering and recycling functions for compressor

Abstract

The utility model belongs to the technical field of compressor lubrication, and particularly relates to a lubricating structure with filtering and recycling functions for a compressor, which comprises a lubricating cavity, a recycling pipe, a filtering pipe with an oil inlet and an oil outlet, an oil storage tank and an oil pump. The oil discharge end of the filter pipe is connected with the oil inlet end of the oil storage tank, the oil inlet end of the oil pump is connected with the oil outlet end of the oil storage tank, and the oil outlet end of the oil pump is connected with the oil inlet end of the lubricating cavity. According to the lubricating structure with the filtering and recycling functions for the compressor, lubricating oil is filtered through the filtering cylinder, the lubricating oil filtered through the filtering cylinder returns to the interior of the oil storage tank through the discharging pipe, and when the lubricating oil is filtered through the filtering cylinder, the pressure in the filtering pipe can be increased when the piston head is pushed into the filtering pipe; the filtering viscosity of the filter cartridge is promoted to penetrate through the filter cartridge for filtering, and the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor lubrication, in particular to a lubrication structure for a compressor with a filtering and recycling function. Background Art

[0002] In the compressor industry, the performance and purity of lubricating oil are crucial for the efficient operation and long-term maintenance of equipment, especially for lubricating shafts and bearings. During compressor operation, friction, wear, and the intrusion of impurities from the operating environment gradually contaminate the lubricating oil with contaminants such as metal debris, dust, and moisture. If these contaminants are not promptly removed, they will not only accelerate the wear of compressor components and reduce equipment efficiency, but may also cause failures and shorten the compressor's service life.

[0003] Although some compressor systems currently on the market have adopted lubricant recovery mechanisms to recycle resources and reduce waste, these systems generally lack effective filtration of the recovered lubricant. This means that lubricant containing impurities is directly reinjected into the compressor system, not only failing to provide effective lubrication, but may also exacerbate internal damage to the equipment, creating a vicious cycle.

[0004] To address these issues, some advanced designs have attempted to integrate filtration into the lubricant recovery process to remove impurities before the oil is reused. However, due to the inherent viscosity of lubricant, especially when the compressor is operating at high temperatures, the viscosity of the lubricant increases further, which significantly complicates the filtration process. Highly viscous lubricant easily clogs the filter, resulting in low filtration efficiency. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the inventors have conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0006] Specifically, the technical problem to be solved by the present invention is to provide a lubrication structure for a compressor with a filtering and recovery function, so as to solve the technical problem that the current lubricating oil itself has a certain viscosity, resulting in low filtering efficiency.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A lubrication structure with a filtering and recovery function for a compressor includes a lubrication chamber, a recovery pipe, a filter pipe provided with an oil inlet and an oil discharge port, an oil storage tank, and an oil pump. The recovery pipe is used to connect the oil discharge end of the lubrication chamber with the oil inlet of the filter pipe, the oil discharge end of the filter pipe is connected to the oil inlet end of the oil storage tank, the oil inlet end of the oil pump is connected to the oil outlet end of the oil storage tank, and the oil outlet end of the oil pump is connected to the oil inlet end of the lubrication chamber.

[0009] A filter cartridge is provided inside the filter tube, a discharge pipe is fixed at the oil discharge port of the filter tube, a pipe cover is installed at the open end of the filter tube away from the discharge pipe through a flange, a piston head is movably provided inside the pipe cover, a piston rod is fixed at the center of the circle of the piston head away from the end of the filter tube, and a linkage bar is fixed to the end of the piston rod away from the piston head.

[0010] As an improved technical solution, a one-way valve is fixed at one end of the recovery pipe close to the filter pipe, and the lubricating oil can only enter the interior of the filter pipe through the one-way valve and cannot flow in the opposite direction to the lubrication chamber through the one-way valve.

[0011] As an improved technical solution, a blocking ring is fixed inside the filter tube and at the lower end of the oil inlet on the filter tube. The head end of the filter cartridge is integrally formed with a hanging edge, and the hanging edge and the blocking ring are in a blocking state.

[0012] As an improved technical solution, rod seats are welded on both sides of the peripheral surface of the pipe cover, and an electric telescopic rod is fixed on the side of the rod seat away from the pipe cover, and the driving end of the electric telescopic rod is connected to the lug end of the linkage bar.

[0013] As an improved technical solution, the lubrication chamber includes a lubrication tank 1 and a lubrication tank 2. The opposite surfaces of the lubrication tank 1 and the lubrication tank 2 are both provided with semicircular chambers for storing bearings. One side of the lubrication tank 1 and the lubrication tank 2 is provided with an axial hole connected to the semicircular chamber. The top of the lubrication tank 1 is provided with an oil filling hole connected to the upper semicircular chamber thereof, and the bottom of the lubrication tank 2 is provided with a recovery hole connected to the upper semicircular chamber thereof.

[0014] As an improved technical solution, a group of arc-shaped pads are installed on the front end face and the rear end face of the inner wall of the semicircular cavity, and the recovery hole is located between the two groups of arc-shaped pads. The contact surface between the recovery hole and the bearing is arranged in an arc shape.

[0015] After adopting the above technical solution, the beneficial effects of the utility model are:

[0016] 1. In the present invention, the arc-shaped pad installed on the inner wall of the semicircular cavity supports the bearing, which is more conducive to the flow of lubricating oil inside the semicircular cavity and prevents the bearing from blocking the recovery hole and making it impossible to recover the lubricating oil.

[0017] 2. In the present invention, the lubricating oil enters the interior of the filter tube through the recovery pipe, and the lubricating oil is filtered through the filter cartridge. The lubricating oil filtered by the filter cartridge returns to the interior of the oil storage tank through the discharge pipe. While the lubricating oil is filtered through the filter cartridge, the piston head increases the pressure inside the filter tube when it is pushed toward the interior of the filter tube. Due to the setting of the one-way valve, the outlet of the filter tube pressure is located at the oil discharge end of the filter tube. The increase in the pressure inside the filter tube will cause the pressure to be released to the oil discharge end of the filter tube, which will push the lubricating oil through the filter cartridge, thereby promoting the filter cartridge to filter the viscosity through the filter cartridge for filtration, thereby improving the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a lubrication structure with filtering and recycling functions for a compressor according to the utility model.

[0020] Figure 2 The utility model is a schematic diagram of the exploded structure of a lubrication cavity of a lubrication structure provided with a filtering and recycling function for a compressor.

[0021] Figure 3 The utility model is a schematic cross-sectional view of a filter tube of a lubrication structure with a filtering and recycling function for a compressor.

[0022] Figure 4 This is a structural schematic diagram of a pipe cover with a lubrication structure having a filtering and recycling function for a compressor according to the utility model.

[0023] Description of reference numerals:

[0024] 1. Lubrication chamber; 11. Lubrication chamber 1; 12. Lubrication chamber 2; 13. Semicircular chamber; 14. Axis hole; 15. Recovery hole; 16. Arc-shaped pad; 17. Oil filling hole; 2. Recovery pipe; 21. One-way valve; 3. Filter tube; 31. Pipe cover; 311. Rod seat; 312. Electric telescopic rod; 313. Linkage bar; 314. Piston rod; 315. Piston head; 32. Discharge pipe; 33. Hanging table edge; 34. Blocking ring; 35. Filter cartridge. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or an option in which both A and B are satisfied.

[0028] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0029] like Figures 1 to 4 As shown together, this embodiment provides a lubrication structure with a filtering and recycling function for a compressor. This lubrication structure with a filtering and recycling function for a compressor includes a lubrication chamber 1, a recovery pipe 2, a filter pipe 3 provided with an oil inlet and an oil discharge port, an oil storage tank, and an oil pump. The recovery pipe 2 is used to connect the oil discharge end of the lubrication chamber 1 with the oil inlet of the filter pipe 3, the oil discharge end of the filter pipe 3 is connected to the oil inlet end of the oil storage tank, the oil inlet end of the oil pump is connected to the oil outlet end of the oil storage tank, and the oil outlet end of the oil pump is connected to the oil inlet end of the lubrication chamber 1.

[0030] A filter cartridge 35 is provided inside the filter tube 3, a discharge pipe 32 is fixed at the oil discharge port of the filter tube 3, a pipe cover 31 is installed at the open end of the filter tube 3 away from the discharge pipe 32 through a flange, a piston head 315 is movably provided inside the pipe cover 31, a piston rod 314 is fixed at the center of the piston head 315 away from the end of the filter tube 3, and a sliding hole for the piston rod 314 to pass through is opened at the center of the end of the pipe cover 31 away from the filter tube 3, and a linkage bar 313 is fixed to the end of the piston rod 314 away from the piston head 315.

[0031] like Figure 1 As shown, in this embodiment, a one-way valve 21 is fixed at one end of the recovery pipe 2 close to the filter pipe 3, and the lubricating oil can only enter the interior of the filter pipe 3 through the one-way valve 21, and cannot flow in the reverse direction toward the lubrication chamber 1 through the one-way valve 21.

[0032] like Figure 3 As shown, in this embodiment, a blocking ring 34 is fixed inside the filter tube 3 and at the lower end of the oil inlet on the filter tube 3, and the head end of the filter cartridge 35 is integrally formed with a hanging edge 33, and the hanging edge 33 and the blocking ring 34 are in a blocking state to prevent the filter cartridge 35 from falling off.

[0033] like Figure 4 As shown, in this embodiment, rod seats 311 are welded on both sides of the peripheral surface of the tube cover 31, and an electric telescopic rod 312 is fixed on the side of the rod seat 311 away from the tube cover 31, and the driving end of the electric telescopic rod 312 is connected to the lug end of the linkage bar 313. The electric telescopic rod 312 shortens and drives the piston head 315 to move toward the direction of the filter tube 3 and eventually enter the interior of the filter tube 3. When the piston head 315 pushes toward the interior of the filter tube 3, the pressure inside the filter tube 3 will increase. Due to the setting of the one-way valve 21, the outlet of the pressure of the filter tube 3 is located at the oil discharge end of the filter tube 3. The increase in the internal pressure of the filter tube 3 will cause the pressure to be released to the oil discharge end of the filter tube 3, which will push the lubricating oil through the filter cartridge 35, thereby promoting the filter cartridge 35 to filter the viscosity through the filter cartridge 35 for filtration, thereby improving the filtration efficiency.

[0034] like Figure 2 As shown, in this embodiment, the lubrication chamber 1 includes a lubrication chamber 11 and a lubrication chamber 2 12. The opposite surfaces of the lubrication chamber 11 and the lubrication chamber 2 12 are each provided with a semicircular chamber 13 for storing bearings. One side of the lubrication chamber 11 and the lubrication chamber 2 12 is each provided with an axial hole 14 connected to the semicircular chamber 13. The top of the lubrication chamber 11 is provided with an oil filling hole 17 connected to the semicircular chamber 13 above it. The bottom of the lubrication chamber 2 12 is provided with a recovery hole 15 connected to the semicircular chamber 13 above it.

[0035] like Figure 2As shown, in this embodiment, a group of arc-shaped pads 16 are installed on the front end face and the rear end face of the inner wall of the semicircular cavity 13, and the recovery hole 15 is located between the two groups of arc-shaped pads 16. The contact surface between the recovery hole 15 and the bearing is arranged in an arc shape. The arc-shaped pads 16 installed on the inner wall of the semicircular cavity 13 support the bearing, which is more conducive to the flow of lubricating oil inside the semicircular cavity 13, and avoids the bearing blocking the recovery hole 15 and making it impossible to recover the lubricating oil.

[0036] When in use, the oil pump pumps lubricating oil from the oil storage tank and delivers it to the lubrication chamber 1. The lubricating oil enters the semicircular chamber 13 through the oil filling hole 17 and is poured onto the bearing and the shaft end for lubrication. The excess lubricating oil enters the recovery pipe 2 through the recovery hole 15.

[0037] The lubricating oil enters the interior of the filter tube 3 through the recovery pipe 2. Under the action of gravity, the lubricating oil flows downward. At this time, the lubricating oil is filtered by the filter cartridge 35. The lubricating oil filtered by the filter cartridge 35 returns to the interior of the oil storage tank through the discharge pipe 32.

[0038] When the oil is filtered through the filter tube 35, the electric telescopic rod 312 extends to push the linkage bar 313 away from the tube cover 31, which drives the piston head 315 to move away from the filter tube 3. Subsequently, the electric telescopic rod 312 shortens and drives the piston head 315 to move toward the filter tube 3 and finally enters the interior of the filter tube 3. When the piston head 315 is pushed toward the interior of the filter tube 3, the pressure inside the filter tube 3 will increase. Due to the setting of the one-way valve 21, the outlet of the pressure of the filter tube 3 is located at the oil discharge end of the filter tube 3. The increase in the internal pressure of the filter tube 3 will cause the pressure to be released to the oil discharge end of the filter tube 3, which will push the lubricating oil through the filter tube 35, thereby promoting the filter cartridge 35 to filter the viscosity of the oil.

[0039] It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention. In addition, it should be understood that after reading the technical content of the present invention, those skilled in the art may make various changes, modifications and / or variations to the present invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims of this application.

Claims

1. A lubrication structure for a compressor with a filtering and recycling function, characterized in that: It comprises a lubrication chamber (1), a recovery pipe (2), a filter pipe (3) provided with an oil inlet and an oil outlet, an oil storage tank and an oil pump, wherein the recovery pipe (2) is used to connect the oil outlet end of the lubrication chamber (1) with the oil inlet of the filter pipe (3), the oil outlet end of the filter pipe (3) is connected to the oil inlet end of the oil storage tank, the oil inlet end of the oil pump is connected to the oil outlet end of the oil storage tank, and the oil outlet end of the oil pump is connected to the oil inlet end of the lubrication chamber (1); A filter cartridge (35) is provided inside the filter tube (3), a discharge pipe (32) is fixed at the oil discharge port of the filter tube (3), a pipe cover (31) is installed at the open end of the filter tube (3) away from the discharge pipe (32) via a flange, a piston head (315) is movably provided inside the pipe cover (31), a piston rod (314) is fixed at the center of the circle of the piston head (315) away from the end of the filter tube (3), and a linkage bar (313) is fixed at the end of the piston rod (314) away from the piston head (315).

2. A lubricating structure with a filtering and recycling function for a compressor according to claim 1, characterized in that: A one-way valve (21) is fixed to one end of the recovery pipe (2) close to the filter pipe (3), and the lubricating oil can only enter the interior of the filter pipe (3) through the one-way valve (21) and cannot flow in the reverse direction toward the lubrication chamber (1) through the one-way valve (21).

3. The lubrication structure with filtering and recycling function for a compressor according to claim 2, characterized in that: A blocking ring (34) is fixed inside the filter tube (3) and at the lower end of the oil inlet on the filter tube (3). The head end of the filter cartridge (35) is integrally formed with a hanging edge (33), and a blocking state is formed between the hanging edge (33) and the blocking ring (34).

4. A lubricating structure with a filtering and recycling function for a compressor according to claim 3, characterized in that: Rod seats (311) are welded to both sides of the peripheral surface of the tube cover (31), and an electric telescopic rod (312) is fixed to the side of the rod seat (311) away from the tube cover (31), and the driving end of the electric telescopic rod (312) is connected to the lug end of the linkage bar (313).

5. The lubrication structure with filtering and recycling function for a compressor according to claim 4, characterized in that: The lubrication chamber (1) comprises a lubrication chamber 1 (11) and a lubrication chamber 2 (12), and the opposite surfaces of the lubrication chamber 1 (11) and the lubrication chamber 2 (12) are both provided with a semicircular chamber (13) for storing bearings, and one side of the lubrication chamber 1 (11) and the lubrication chamber 2 (12) are both provided with an axial hole (14) connected to the semicircular chamber (13), and the top of the lubrication chamber 1 (11) is provided with an oil filling hole (17) connected to the semicircular chamber (13) above it, and the bottom of the lubrication chamber 2 (12) is provided with a recovery hole (15) connected to the semicircular chamber (13) above it.

6. The lubrication structure with filtering and recycling function for a compressor according to claim 5, characterized in that: A set of arc-shaped cushion seats (16) are installed on the front end face and the rear end face of the inner wall of the semicircular cavity (13), and the recovery hole (15) is located between the two sets of arc-shaped cushion seats (16). The contact surface between the recovery hole (15) and the bearing is arranged in an arc shape.

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