Efficient energy-saving lubricating device of air compressor
By introducing an adjustable oil injection mechanism and a conical seal structure into the air compressor, the problems of lubricant waste and insufficient oil supply caused by fixed oil injection volume are solved, achieving efficient and energy-saving lubrication, extending equipment life and reducing maintenance costs.
Patent Information
- Application Number
- CN202521608031.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-07
- Estimated Expiration
- 2035-07-30
AI Technical Summary
Existing air compressor lubrication systems use a fixed oil injection method, which leads to excessive oil waste under low load and insufficient oil supply under high load, increasing friction, wear and energy consumption.
An adjustable oil injection mechanism including a transverse hydraulic cylinder and a transverse drive motor was designed. By dynamically adjusting the amount of lubricating oil, excessive or insufficient oil supply is avoided, and a conical sealing structure is adopted to ensure the lubrication effect.
It significantly reduces friction and wear of key moving parts, extends equipment life, improves operating efficiency, reduces energy consumption and lubricant waste, and saves maintenance costs.
Smart Images

Figure CN224469270U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of air compressor technology, specifically relating to a high-efficiency and energy-saving lubrication device for air compressors. Background Technology
[0002] An air compressor, also known as an air press, is a machine that compresses air to increase gas pressure or transport gas. Air compressors come in three types: piston, centrifugal, and screw. They are mainly used to drive various pneumatic tools and in braking and control applications. In the food and pharmaceutical industries, air compressors are primarily used to compress air for agitating slurries. Noise control for air compressors mainly employs three methods: silencers, sound-absorbing tunnels, and sound insulation technology.
[0003] Most existing air compressor lubrication devices use a fixed oil injection method. A fixed oil injection may result in excessive lubricating oil at low loads, causing waste, and insufficient oil supply at high loads, which will aggravate friction and wear. To address this, we have designed a high-efficiency and energy-saving lubrication device for air compressors to provide an alternative technical solution to the above-mentioned technical problems. Utility Model Content
[0004] The purpose of this utility model is to provide a high-efficiency and energy-saving lubrication device for air compressors, so as to solve the problems in the use of the existing technology mentioned in the background.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency and energy-saving lubrication device for an air compressor, comprising an air compressor, a lubrication box provided on the top of one side of the air compressor, a rectangular liquid discharge pipe fixed at the bottom of the lubrication box, a circular liquid injection pipe fixed at the bottom of the rectangular liquid discharge pipe, the circular liquid injection pipe being connected to the air compressor, and a solenoid valve provided on the outside of the circular liquid injection pipe;
[0006] The lubrication box is equipped with an adjustable oil injection mechanism.
[0007] Preferably, the oil injection mechanism includes a horizontal circular tube, which is located inside the lubrication box and rotatably connected to the lubrication box. A support assembly is also provided on the outside of the horizontal circular tube. A vertical rotating column is rotatably connected to the bottom of the support assembly. A rectangular push plate is rotatably connected to the bottom of the vertical rotating column through a pin. The rectangular push plate is located inside the rectangular lower liquid pipe and slidably connected to the rectangular lower liquid pipe.
[0008] Preferably, a U-shaped movable plate is provided on the outside of the lubrication box, a transverse drive motor is fixed inside the U-shaped movable plate with bolts, and a transverse hydraulic cylinder is fixed on the outside of the U-shaped movable plate, and the transverse hydraulic cylinder is fixedly connected to the lubrication box.
[0009] Preferably, the support assembly includes a horizontal rotating column, which is sleeved on the outside of the horizontal circular tube and fixedly connected to the horizontal circular tube. A rectangular sliding column is slidably connected inside the horizontal rotating column, and a rectangular moving block is fixed at the bottom of the rectangular sliding column. The bottom of the rectangular moving block is rotatably connected to the vertical rotating column through a pin.
[0010] Preferably, a transverse rotating rod is slidably connected inside the transverse circular tube, the output end of the transverse drive motor is fixed to the transverse rotating rod, a transverse sliding block is fixed to the end of the transverse rotating rod away from the transverse drive motor, the bottom of the transverse sliding block is rotatably connected to an oblique rotating column via a pin, and the bottom of the oblique rotating column is rotatably connected to a rectangular moving block via a pin.
[0011] Preferably, the interior of the transverse rotating column is provided with a rectangular sliding groove, and the rectangular sliding column is located inside the rectangular sliding groove and is slidably connected to the transverse rotating column through the rectangular sliding groove.
[0012] Preferably, a plurality of horizontal rectangular sliders are evenly distributed and fixed on the outer side of the horizontal rotating rod, and a horizontal sliding groove is opened inside the horizontal circular tube. The horizontal rotating rod and the horizontal circular tube are slidably connected by the cooperation of the horizontal rectangular sliders and the horizontal sliding groove.
[0013] Preferably, the rectangular push plate has a vertical connecting column inside, a rectangular limiting block is fixed at the top of the vertical connecting column, a conical sealing block is fixed at the bottom of the vertical connecting column, a circular sealing sheet is fixed at the bottom of the conical sealing block, and a conical groove adapted to the conical sealing block is opened inside the rectangular push plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention utilizes the operation of a horizontal hydraulic cylinder and a horizontal drive motor to enable the horizontal rotating rod to move inside the horizontal circular tube. This allows for dynamic adjustment of the oil injection volume based on the real-time operating conditions of the air compressor, preventing excessive or insufficient oil supply, significantly reducing friction and wear on key moving parts, extending equipment lifespan, making the air compressor more efficient, reducing energy consumption, minimizing lubricant waste, and saving maintenance costs. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the rectangular liquid inlet tube and the circular liquid injection tube of this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the lubrication box of this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the U-shaped moving plate and the transverse hydraulic cylinder of this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the transverse rotating rod and the transverse circular tube of this utility model;
[0021] Figure 6 This is a schematic diagram of the internal structure of the transverse rotating column of this utility model;
[0022] Figure 7 This is a schematic diagram of the internal structure of the rectangular push plate of this utility model.
[0023] In the diagram: 1. Air compressor; 2. Lubrication box; 3. Rectangular lower fluid pipe; 4. Circular injection pipe; 5. Horizontal drive motor; 6. U-shaped moving plate; 7. Horizontal hydraulic cylinder; 8. Rectangular push plate; 9. Horizontal rotating rod; 10. Horizontal circular pipe; 11. Horizontal sliding block; 12. Inclined rotating column; 13. Horizontal rotating column; 14. Rectangular sliding column; 15. Rectangular moving block; 16. Vertical rotating column; 17. Vertical connecting column; 18. Conical sealing block; 19. Circular sealing plate; 20. Rectangular limit block. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figures 1-7 A high-efficiency and energy-saving lubrication device for an air compressor includes an air compressor 1, a lubrication box 2 is provided on the top of one side of the air compressor 1, a rectangular liquid discharge pipe 3 is fixed at the bottom of the lubrication box 2, a circular liquid injection pipe 4 is fixed at the bottom of the rectangular liquid discharge pipe 3, the circular liquid injection pipe 4 is connected to the air compressor 1, and a solenoid valve is provided on the outside of the circular liquid injection pipe 4.
[0026] The lubrication box 2 is equipped with an adjustable oil injection mechanism;
[0027] The oil injection mechanism includes a horizontal circular tube 10, which is located inside the lubrication box 2 and rotatably connected to the lubrication box 2. A support assembly is also provided on the outside of the horizontal circular tube 10. A vertical rotating column 16 is rotatably connected to the bottom of the support assembly. A rectangular push plate 8 is rotatably connected to the bottom of the vertical rotating column 16 through a pin. The rectangular push plate 8 is located inside the rectangular lower liquid pipe 3 and slidably connected to the rectangular lower liquid pipe 3.
[0028] A U-shaped movable plate 6 is provided on the outside of the lubrication box 2. A transverse drive motor 5 is fixed inside the U-shaped movable plate 6 with bolts. A transverse hydraulic cylinder 7 is fixed on the outside of the U-shaped movable plate 6. The transverse hydraulic cylinder 7 is fixedly connected to the lubrication box 2. Through the operation of the transverse hydraulic cylinder 7, the U-shaped movable plate 6 can move, thereby enabling the transverse drive motor 5 to move.
[0029] The support assembly includes a horizontal rotating column 13, which is sleeved on the outside of the horizontal circular tube 10 and fixedly connected to the horizontal circular tube 10. A rectangular sliding column 14 is slidably connected inside the horizontal rotating column 13. A rectangular moving block 15 is fixed to the bottom of the rectangular sliding column 14. The bottom of the rectangular moving block 15 is rotatably connected to the vertical rotating column 16 through a pin. By rotating the horizontal circular tube 10, the horizontal rotating column 13, the rectangular sliding column 14, and the rectangular moving block 15 can rotate. The rotation of the rectangular moving block 15 causes the rectangular push plate 8 to slide vertically inside the rectangular lower liquid pipe 3 through the vertical rotating column 16. This allows the lubricating fluid inside the rectangular lower liquid pipe 3 to be injected into the air compressor 1 through the circular injection pipe 4. By sliding the horizontal rotating column 13 and the rectangular sliding column 14, the distance between the horizontal rotating column 13 and the rectangular moving block 15 can be adjusted, thereby adjusting the vertical lifting stroke of the rectangular push plate 8.
[0030] A transverse rotating rod 9 is slidably connected inside the transverse circular tube 10. The output end of the transverse drive motor 5 is fixed to the transverse rotating rod 9. A transverse sliding block 11 is fixed to the end of the transverse rotating rod 9 away from the transverse drive motor 5. The bottom of the transverse sliding block 11 is rotatably connected to an inclined rotating column 12 via a pin. The bottom of the inclined rotating column 12 is rotatably connected to a rectangular moving block 15 via a pin. Through the operation of the transverse hydraulic cylinder 7, the U-shaped moving plate 6 can move. The movement of the transverse drive motor 5 causes the transverse drive motor 5 to move. The movement of the transverse drive motor 5 causes the transverse rotating rod 9 to move, thereby allowing the transverse rotating rod 9 to slide inside the transverse circular tube 10. The movement of the transverse rotating rod 9, through the transverse sliding block 11 and the inclined rotating column 12, allows the rectangular sliding column 14 to slide inside the transverse rotating column 13. The movement of the rectangular moving block 15, through the vertical rotating column 16, allows the rectangular push plate 8 to slide inside the rectangular lower liquid tube 3.
[0031] The interior of the horizontal rotating column 13 is provided with a rectangular sliding groove. The rectangular sliding column 14 is located inside the rectangular sliding groove and is slidably connected to the horizontal rotating column 13 through the rectangular sliding groove. The rectangular sliding groove allows the rectangular sliding column 14 to move inside the horizontal rotating column 13. The movement of the rectangular sliding column 14 allows the rectangular moving block 15 to move.
[0032] Multiple horizontal rectangular sliders are evenly distributed and fixed on the outer side of the horizontal rotating rod 9. A horizontal sliding groove is opened inside the horizontal circular tube 10. The horizontal rotating rod 9 and the horizontal circular tube 10 are slidably connected through the cooperation of the horizontal rectangular sliders and the horizontal sliding groove. Through the setting of the horizontal rectangular sliders and the horizontal sliding groove, the horizontal rotating rod 9 can move horizontally inside the horizontal circular tube 10. The rotation of the horizontal rotating rod 9 enables the horizontal circular tube 10 to rotate.
[0033] The rectangular push plate 8 has a vertical connecting column 17 inside. A rectangular limiting block 20 is fixed to the top of the vertical connecting column 17, and a conical sealing block 18 is fixed to the bottom of the vertical connecting column 17. A circular sealing plate 19 is fixed to the bottom of the conical sealing block 18. The rectangular push plate 8 has a conical groove inside that matches the conical sealing block 18. The conical groove allows the conical sealing block 18 to be located inside the rectangular push plate 8. When the rectangular push plate 8 descends, the hydraulic oil inside the rectangular lower liquid pipe 3 can be injected into the air compressor 1 through the circular liquid injection pipe 4. When the rectangular push plate 8 rises, the vertical connecting column 17 can descend inside the rectangular push plate 8, allowing the liquid to flow through the gap between the conical sealing block 18 and the rectangular push plate 8.
[0034] Through the operation of the horizontal hydraulic cylinder 7 and the horizontal drive motor 5, the horizontal rotating rod 9 can move inside the horizontal circular tube 10, which can dynamically adjust the oil injection amount according to the real-time operating conditions of the air compressor 1, avoid excessive or insufficient oil supply, significantly reduce the friction and wear of key moving parts, extend the service life of the equipment, make the air compressor 1 operate more efficiently, reduce energy consumption, and at the same time reduce lubricating oil waste and save maintenance costs.
[0035] Working principle: Lubricating oil is injected into the lubrication tank 2. The operation of the horizontal hydraulic cylinder 7 enables the U-shaped moving plate 6 to move. The movement of the horizontal drive motor 5 enables the horizontal drive motor 5 to move. The movement of the horizontal drive motor 5 enables the horizontal rotating rod 9 to move, thereby allowing the horizontal rotating rod 9 to slide inside the horizontal circular tube 10. The movement of the horizontal rotating rod 9, through the horizontal sliding block 11 and the inclined rotating column 12, enables the rectangular sliding column 14 to slide inside the horizontal rotating column 13. The movement of the rectangular moving block 15, through the vertical rotating column 16, enables the rectangular push plate 8 to slide inside the rectangular lower liquid tube 3.
[0036] Furthermore, the lifting stroke of the rectangular push plate 8 in the rectangular lower liquid pipe 3 can be adjusted, and the oil injection volume can be dynamically adjusted according to the real-time working conditions of the air compressor 1. Through the setting of the conical groove, the conical sealing block 18 can be located inside the rectangular push plate 8. When the rectangular push plate 8 descends, the hydraulic oil inside the rectangular lower liquid pipe 3 can be injected into the air compressor 1 through the circular injection pipe 4. When the rectangular push plate 8 rises, the vertical connecting column 17 can descend inside the rectangular push plate 8, thereby allowing the liquid to flow through the gap between the conical sealing block 18 and the rectangular push plate 8.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency and energy-saving lubrication device for an air compressor, characterized in that: Includes an air compressor (1), a lubrication box (2) is provided on the top of one side of the air compressor (1), a rectangular liquid pipe (3) is fixed at the bottom of the lubrication box (2), a circular liquid injection pipe (4) is fixed at the bottom of the rectangular liquid pipe (3), the circular liquid injection pipe (4) is connected to the air compressor (1), and a solenoid valve is provided on the outside of the circular liquid injection pipe (4). The lubrication box (2) is equipped with an adjustable oil injection mechanism.
2. The high-efficiency and energy-saving lubrication device for an air compressor according to claim 1, characterized in that: The oil injection mechanism includes a horizontal circular tube (10), which is located inside the lubrication box (2) and rotatably connected to the lubrication box (2). A support assembly is also provided on the outside of the horizontal circular tube (10). A vertical rotating column (16) is rotatably connected to the bottom of the support assembly. A rectangular push plate (8) is rotatably connected to the bottom of the vertical rotating column (16) via a pin. The rectangular push plate (8) is located inside the rectangular lower liquid pipe (3) and slidably connected to the rectangular lower liquid pipe (3).
3. The high-efficiency and energy-saving lubrication device for an air compressor according to claim 2, characterized in that: A U-shaped moving plate (6) is provided on the outside of the lubrication box (2). A transverse drive motor (5) is fixed inside the U-shaped moving plate (6) with bolts. A transverse hydraulic cylinder (7) is fixed on the outside of the U-shaped moving plate (6). The transverse hydraulic cylinder (7) is fixedly connected to the lubrication box (2).
4. The high-efficiency and energy-saving lubrication device for an air compressor according to claim 3, characterized in that: The support assembly includes a horizontal rotating column (13), which is sleeved on the outside of the horizontal circular tube (10) and fixedly connected to the horizontal circular tube (10). A rectangular sliding column (14) is slidably connected inside the horizontal rotating column (13). A rectangular moving block (15) is fixed at the bottom of the rectangular sliding column (14). The bottom of the rectangular moving block (15) is rotatably connected to the vertical rotating column (16) through a pin.
5. The high-efficiency and energy-saving lubrication device for an air compressor according to claim 4, characterized in that: The transverse circular tube (10) is slidably connected to a transverse rotating rod (9). The output end of the transverse drive motor (5) is fixed to the transverse rotating rod (9). The end of the transverse rotating rod (9) away from the transverse drive motor (5) is fixed to a transverse sliding block (11). The bottom of the transverse sliding block (11) is rotatably connected to an oblique rotating column (12) via a pin. The bottom of the oblique rotating column (12) is rotatably connected to a rectangular moving block (15) via a pin.
6. The high-efficiency and energy-saving lubrication device for an air compressor according to claim 5, characterized in that: The interior of the transverse rotating column (13) is provided with a rectangular sliding groove, and the rectangular sliding column (14) is located inside the rectangular sliding groove and is slidably connected to the transverse rotating column (13) through the rectangular sliding groove.
7. The high-efficiency and energy-saving lubrication device for an air compressor according to claim 5, characterized in that: Multiple horizontal rectangular sliders are evenly distributed and fixed on the outer side of the horizontal rotating rod (9), and a horizontal sliding groove is opened inside the horizontal circular tube (10). The horizontal rotating rod (9) and the horizontal circular tube (10) are slidably connected by the cooperation of the horizontal rectangular sliders and the horizontal sliding groove.
8. The high-efficiency and energy-saving lubrication device for an air compressor according to claim 5, characterized in that: The rectangular push plate (8) has a vertical connecting column (17) inside. A rectangular limiting block (20) is fixed at the top of the vertical connecting column (17). A conical sealing block (18) is fixed at the bottom of the vertical connecting column (17). A circular sealing sheet (19) is fixed at the bottom of the conical sealing block (18). A conical groove adapted to the conical sealing block (18) is opened inside the rectangular push plate (8).
