Eight-star type full-oil-free lubrication air compressor

Abstract

The utility model relates to eight star type full oil -free lubrication air compressor, including crankcase, the crankcase installs the crankshaft, and the crankcase installs main connecting rod ring, and the main connecting rod ring is connected with main connecting rod, the crankcase installs the vice connecting rod, and the main connecting rod is installed respectively with first connecting rod big head bearing outer spacer ring and second connecting rod big head bearing outer spacer, the bearing seat is connected between the crankshaft and the crankcase, the crankshaft is rotatably connected in the bearing seat through the bearing, the crankcase installs the crank bearing inner spacer ring, and the main connecting rod installs main connecting rod disc connecting rod pin, the main connecting rod installs connecting rod big head bearing inner spacer ring and main connecting rod big head pin. The whole of this technical scheme is eight star type structure, and 8 cylinders are combined randomly, and 8 cylinders share same crankshaft and crankcase, and the layout optimization space utilization rate of main vice connecting rod, single equipment can realize multistage compression, reduces external pipeline and accessory, and can realize different gas quantity and pressure quick modification.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, specifically to an eight-star type oil-free lubricated air compressor. Background Technology

[0002] The XW1.0-6-Q oil-free air compressor is a general-purpose mechanical device that uses an electric motor as its power source and increases air pressure by changing the cylinder stroke volume through piston movement. It mainly consists of a crankshaft, connecting rod, piston, crankcase, motor, controller, and exhaust cooling pipes. The moving parts structure is based on the principle of a piston-type radial aircraft engine. The entire machine adopts automated electrical control, making it easy to operate. Its multi-head intake layout, with symmetrical arrangement of each head, disperses noise points, achieving vibration and noise reduction for the air compressor.

[0003] With the improvement of people's living standards and environmental awareness, and the increasing desire for food safety and a quiet working and living environment, our food processing processes must ensure the absence of industrial lubricating oil. A quiet working environment provides users with a better experience, making oil-free, low-noise air compressors the ideal choice. Currently, there is a certain market demand, demonstrating both social and economic benefits. However, similar air compressors in China are currently quite noisy, which is unacceptable to customers. Therefore, we have proposed the eight-star type oil-free lubricated air compressor. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application proposes an eight-star type oil-free lubricated air compressor, in which all cylinders are on the same plane, greatly reducing the overturning moment of the compressor body. The main and auxiliary connecting rods, through coordinated movement, can partially offset the inertial force of the piston movement, reducing the vibration of the crankshaft and the compressor body, thereby improving the stability of equipment operation and making the unit run more smoothly and reliably.

[0005] This utility model provides the following technical solution: an eight-star type oil-free lubricated air compressor, including a crankcase, a crankshaft mounted on the crankcase, a main connecting rod ring mounted on the crankcase, a main connecting rod sleeved inside the main connecting rod ring, an auxiliary connecting rod mounted on the crankcase, and a first connecting rod big end bearing outer spacer and a second connecting rod big end bearing outer spacer respectively mounted on the main connecting rod.

[0006] As a preferred embodiment of this utility model, a bearing housing is connected between the crankshaft and the crankcase, and the crankshaft is rotatably connected to the bearing housing through the bearing.

[0007] As a preferred embodiment of this utility model, the crankcase is equipped with an inner spacer for the crank bearing, and the main connecting rod is equipped with a main connecting rod disc connecting rod pin.

[0008] As a preferred embodiment of this utility model, the main connecting rod is equipped with a connecting rod big end bearing inner spacer and a main connecting rod big end pin.

[0009] As a preferred embodiment of this utility model, a common base is installed below the crankcase.

[0010] As a preferred embodiment of this utility model, the crankcase is equipped with an air collection pipe component and a pressure switch.

[0011] The beneficial effects of this utility model are: 1. The overall structure of this technical solution is an eight-star structure, with eight cylinders that can be combined in any way. The eight cylinders share the same crankshaft and crankcase. The layout of the main and auxiliary connecting rods optimizes space utilization. A single unit can achieve multi-stage compression, reduce external pipelines and accessories, and enable rapid transformation to different air volumes and pressures. 2. This technical solution uses PTFE self-lubricating material, which is 100% oil-free and produces high-quality gas. The compressed air output from the oil-free air compressor is pure and uncontaminated, meeting the high purity requirements of industries such as electronics, spraying, and chemicals. This helps ensure food hygiene and safety, pharmaceutical purity standards, and prevents oil contamination in precision manufacturing, thus improving product quality. Attached Figure Description

[0012] Figure 1 This is a perspective view of the entire utility model; Figure 2 for Figure 1 A front view structural diagram; Figure 3 for Figure 1 A top-view structural diagram.

[0013] In the diagram: 1. Crankcase; 2. Crankshaft; 3. Bearing housing; 4. Main connecting rod ring; 5. Main connecting rod; 6. Crank bearing inner spacer; 7. First connecting rod big end bearing outer spacer; 8. Second connecting rod big end bearing outer spacer; 9. Main connecting rod disc connecting rod pin; 10. Secondary connecting rod; 11. Connecting rod big end bearing inner spacer; 12. Main connecting rod big end pin; 13. Common base; 14. Air manifold assembly; 15. Pressure switch. Detailed Implementation

[0014] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] Example 1 like Figures 1 to 3As shown, an eight-star type oil-free lubricated air compressor includes: a crankcase 1, a crankshaft 2 mounted on the crankcase 1, a main connecting rod ring 4 mounted on the crankcase 1, a main connecting rod 5 sleeved inside the main connecting rod ring 4, an auxiliary connecting rod 10 mounted on the crankcase 1, and a first connecting rod big end bearing outer spacer 7 and a second connecting rod big end bearing outer spacer 8 respectively mounted on the main connecting rod 5; In this embodiment, a bearing housing 3 connects the crankshaft 2 and the crankcase 1. The crankshaft 2 is rotatably connected to the bearing housing 3 through the bearing. The crankcase 1 is equipped with a crank bearing inner spacer 6, and the main connecting rod 5 is equipped with a main connecting rod disc connecting rod pin 9. The eight cylinders can be combined arbitrarily, and the eight cylinders share the same crankshaft and crankcase. The layout of the main and auxiliary connecting rods optimizes the space utilization rate. A single unit can achieve multi-stage compression, reduce external pipelines and accessories, and achieve rapid changes in different air volumes and pressures.

[0016] Example 2 like Figures 1 to 3 As shown, the main connecting rod 5 is equipped with a connecting rod big end bearing inner spacer 11 and a main connecting rod big end pin 12. A common base 13 is installed below the crankcase 1. An air collection pipe assembly 14 and a pressure switch 15 are installed on the crankcase 1. This technical solution uses PTFE self-lubricating material, is 100% oil-free, and produces high-quality gas. The compressed air output by the oil-free air compressor is pure and pollution-free, meeting the high purity requirements of compressed air in industries such as electronics, spraying, and chemicals. This helps ensure food hygiene and safety, pharmaceutical purity standards, and prevents oil contamination in precision manufacturing, thus improving product quality.

[0017] Implementation plan: 1. Before assembly, all machine parts must be thoroughly cleaned of burrs, chips, oil, and other dirt.

[0018] 2. All connections of the product should be correct and reliable, and safety devices and pressure regulation systems should be sensitive.

[0019] 3. All surfaces of the machine should be flat and smooth. The surface of the air tank should not be directly coated with a base coat. The main unit, air tank and protective cover should be painted. The pulley and rotating arrow should be painted red, and the wheels should be painted black. The factory nameplate and precaution label on the air tank should be affixed in a timely manner and should be affixed upright and in the correct position.

[0020] 4. Products shall undergo the following tests before being shipped in batches: (1) Run under no load for 0.5 hours; (2) Gradually increase the pressure (run for no less than 10 minutes for each 0.2MPa increase) to 1.0MPa and run for a total of 1.5 hours, and test the main performance indicators such as exhaust volume and exhaust temperature.

[0021] 5. The preload of the V-belt should be appropriate. When a load of 200N is applied to the belt at the midpoint between the two wheels, the deflection is 10mm.

[0022] 6. Piston top dead center clearance 0.8-1.2mm, crankshaft axial runout clearance 0.4-0.6mm.

[0023] 7. The maximum pressure limit of the automatic pneumatic switch is 1.0MPa, and the opening pressure of the safety valve is within 1.05-1.10MPa. Check and adjust the electrical starting device to the specified state.

[0024] 8. The packaging of the machine shall comply with the requirements of GB / T13384 "General Technical Conditions for Packaging of Mechanical and Electrical Products".

[0025] The automatic control system in this embodiment is reliable in operation, has a reasonable design structure, stable quality, and is feasible for production. It has improved the manufacturing process and increased productivity to meet the needs of mass production. The products have a high degree of standardization, generalization, and serialization. The market procurement channels are smooth, and the supporting suppliers are all qualified suppliers, ensuring timely, high-quality, and sufficient supply of supporting components to meet production needs.

[0026] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An eight-star type oil-free lubricated air compressor, characterized in that, The crankcase (1) includes a crankshaft (2) mounted on the crankcase (1) and a main connecting rod ring (4) mounted on the crankcase (1). A main connecting rod (5) is sleeved inside the main connecting rod ring (4). A secondary connecting rod (10) is mounted on the crankcase (1). A first connecting rod big end bearing outer spacer (7) and a second connecting rod big end bearing outer spacer (8) are respectively mounted on the main connecting rod (5).

2. The eight-star type oil-free lubricated air compressor according to claim 1, characterized in that, A bearing housing (3) is connected between the crankshaft (2) and the crankcase (1), and the crankshaft (2) is rotatably connected to the bearing housing (3) through the bearing.

3. The eight-star type oil-free lubricated air compressor according to claim 1, characterized in that, The crankcase (1) is equipped with an inner crank bearing spacer (6), and the main connecting rod (5) is equipped with a main connecting rod disc connecting rod pin (9).

4. The eight-star type oil-free lubricated air compressor according to claim 1, characterized in that, The main connecting rod (5) is equipped with a connecting rod big end bearing inner spacer (11) and a main connecting rod big end pin (12).

5. The eight-star type oil-free lubricated air compressor according to claim 1, characterized in that, A common base (13) is installed below the crankcase (1).

6. The eight-star type oil-free lubricated air compressor according to claim 1, characterized in that, The crankcase (1) is equipped with an air collection pipe component (14) and a pressure switch (15).

Images