Novel double-cylinder air compressor

Abstract

The novel double-cylinder air compressor comprises a base, the top of the base is fixedly connected with a main motor, the outer wall of an output shaft of the main motor is fixedly sleeved with a motor coupling, the bottom of the motor coupling is fixedly connected with the top of the base, and the top of the base is fixedly connected with an air compressor box body; two low-pressure cylinders are fixedly embedded in the outer wall of the air compressor box body, and the outer walls of the two low-pressure cylinders are fixedly communicated with a valve housing. The internal space of the low-pressure cylinder is sealed through the protection assembly, gas leakage is prevented, meanwhile, pollutants such as dust and rainwater are blocked, the equipment corrosion risk is reduced, impurities, oil mist and water entering a system are effectively filtered through the air filter, the quality of compressed air is ensured, and internal abrasion is reduced; the fan blades are directly driven by the crankshaft and automatically work along with operation of the main motor, external air is sucked to the surface of the air compressor box body, efficient heat dissipation is achieved, and performance reduction caused by overheating is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of air compressors, and in particular to a novel double-cylinder air compressor. Background Art

[0002] An air compressor, or "air compressor," is a device that mechanically compresses and stores air or other gases. Its primary function is to convert the pressure energy of the gas into mechanical energy, thereby providing a power source or working medium for various industrial and commercial applications. The basic operating principle of an air compressor is that an electric motor or internal combustion engine drives the compressor's internal mechanical components, such as the piston, crankshaft, and rotor, to draw air into a compression chamber. The compression process reduces the gas's volume and increases its pressure. The compressed, high-pressure gas is then stored in a tank for subsequent use.

[0003] In the industrial and manufacturing fields, air compressors are key power equipment, and their performance, reliability, and economy directly affect production efficiency and operating costs. Traditional air compressors face many challenges in long-term operation, such as high energy consumption, complex maintenance, bulky equipment, and performance degradation under frequent start-stop conditions. Especially in harsh or resource-constrained environments, users have higher requirements for low cost, long life, and high stability of equipment. In addition, many application scenarios require air compressors to operate stably in a periodic working mode while maintaining a low failure rate and long maintenance intervals to reduce downtime and improve production efficiency. Therefore, we propose a new type of two-cylinder air compressor to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a new type of double-cylinder air compressor.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A new type of double-cylinder air compressor includes a base, the top of the base is fixedly connected to the main motor, the outer wall of the main motor output shaft is fixedly sleeved with a motor coupling, the bottom of the motor coupling is fixedly connected to the top of the base, the top of the base is fixedly connected to the air compressor casing, the outer wall of the air compressor casing is fixedly inlaid with two low-pressure cylinders, the interiors of the two low-pressure cylinders are movably installed with aluminum pistons, the outer walls of the two low-pressure cylinders are fixedly connected with valve covers, the interiors of the two valve covers are fixedly installed with double suction and double exhaust valves, the outer walls of the low-pressure cylinders are provided with a protective assembly, the outer walls of the two low-pressure cylinders are fixedly connected with air pipe joints, the outer walls of the two air pipe joints are fixedly connected with air distribution pipes, one end of the two air distribution pipes is fixedly connected with the same main air pipe, and the outer wall of the air compressor casing is provided with a cooling assembly.

[0007] Preferably, the protective assembly includes two cover plates, and the outer walls of the two low-pressure cylinders are evenly fixed with multiple protective covers. The outer walls of the two low-pressure cylinders and the multiple protective covers are threadedly connected with bolts. The outer walls of the two cover plates are provided with multiple threaded holes, and the inner walls of the multiple threaded holes are respectively threadedly connected with the outer walls of the multiple bolts. The cover plates and the protective covers can seal the internal space of the low-pressure cylinder to prevent gas leakage, thereby ensuring the normal operation of the system.

[0008] Preferably, the cooling component includes fan blades, the outer wall of the main motor output shaft is fixedly connected to the crankshaft, one end of the crankshaft is fixedly sleeved with a fan coupling, the outer wall of the fan coupling is fixedly connected to the outer wall of the air compressor casing, one end of the crankshaft is fixedly connected to the outer wall of the fan blade, the outer wall of the fan blade is sleeved with a cover, the bottom of the cover is fixedly connected to the top of the base, and the fan blades rotate to draw outside air into the outer wall of the air compressor casing to form a cooling effect.

[0009] Preferably, the outer walls of the two low-pressure cylinders are fixed with docking joints, and the outer walls of the two docking joints are threaded with oil cap openings. The oil cap openings are rotated to add lubricating liquid through the docking joints, which plays an important role in reducing friction during the operation of the air compressor.

[0010] Preferably, air filters are fixedly connected to the outer walls of the two valve housings, and the air filters filter dust, impurities, oil mist, moisture and other particulate matter in the air entering the air compressor housing.

[0011] Preferably, a gasket is sleeved on one end of the crankshaft, and the gasket is located inside the fan blade.

[0012] Preferably, a wind net is fixedly connected to the interior of the cover, and the wind net prevents foreign matter from colliding with the fan blades.

[0013] Preferably, the two air filters are symmetrically arranged, and the two air filters are respectively located on one side of the two low-pressure cylinders. The air filters are externally mounted to facilitate air filtration, and the internal structure of the air filters adopts a multi-layer wire mesh structure to increase filtration efficiency.

[0014] Preferably, the two low-pressure cylinders are symmetrically arranged, and the two low-pressure cylinders are respectively located on both sides of the top of the air compressor housing. The air compressor housing adopts a pentagonal structure, which is solid and stable, and is not easy to shake during operation.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] This solution uses a double-suction and double-exhaust valve structure to significantly improve air intake efficiency, avoid the problem of reduced compression efficiency caused by insufficient gas intake, and ensure continuous and stable high-pressure gas output; the motor coupling and fan coupling are used in conjunction to effectively prevent dust and water, and improve the sealing and durability of the transmission components;

[0017] The internal space of the low-pressure cylinder is sealed by protective components to prevent gas leakage, while blocking pollutants such as dust and rainwater to reduce the risk of equipment corrosion. The air filter effectively filters impurities, oil mist and moisture entering the system, ensuring the quality of compressed air and reducing internal wear.

[0018] The fan blades are directly driven by the crankshaft and automatically work with the main motor to draw external air to the surface of the air compressor housing to achieve efficient heat dissipation and avoid performance degradation caused by overheating;

[0019] The symmetrical layout of the dual low-pressure cylinders, combined with the fan coupling and motor coupling, enhances transmission sealing and stability, and reduces vibration and energy loss.

[0020] Through designs such as efficient air suction, lubrication, enhanced sealing, active cooling and multiple protections, high compression efficiency, low energy consumption, long life and stable operation are achieved. It is suitable for various application scenarios such as industrial manufacturing, automation equipment, pneumatic tools, etc., and meets the modern production needs for low cost and high reliability of air compressors. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the description of the specific implementation methods. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the explosion structure of a new type of double-cylinder air compressor proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of a new type of double-cylinder air compressor proposed by the present invention;

[0024] Figure 3 This is a partial three-dimensional structural schematic diagram of a new type of double-cylinder air compressor proposed by the present invention.

[0025] In the figure: 1. Base; 2. Main motor; 3. Motor coupling; 4. Air compressor housing; 5. Low-pressure cylinder; 6. Connector; 7. Valve cover; 8. Protective cover; 9. Cover plate; 10. Bolt; 11. Air pipe connector; 12. Air distribution pipe; 13. Main air pipe; 14. Air filter; 15. Fan coupling; 16. Fan blades; 17. Cover; 18. Air net; 19. Oil cap opening; 20. Gasket. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0027] Depend on Figure 1-Figure 3 As shown, a new type of double-cylinder air compressor includes a base 1, the top of the base 1 is fixedly connected to a main motor 2, the outer wall fixed sleeve of the output shaft of the main motor 2 is provided with a motor coupling 3, the internal slots of the motor coupling 3 are installed with rubber sealing gaskets and sealing blocks, which can effectively prevent the entry of water and dust, thereby improving the sealing performance, the bottom of the motor coupling 3 is fixedly connected to the top of the base 1, the top of the base 1 is fixedly connected to the air compressor case 4, the outer wall of the air compressor case 4 is fixedly inlaid with two low-pressure cylinders 5, the two low-pressure cylinders 5 are symmetrically arranged, and the two low-pressure cylinders 5 are respectively located on both sides of the top of the air compressor case 4, the air compressor case 4 adopts a pentagonal structure, which is solid and stable, and is not easy to shake during operation. Aluminum pistons are movably installed inside the two low-pressure cylinders 5, and the aluminum pistons can reduce weight, improve heat dissipation efficiency, and optimize mechanical performance.

[0028] The outer walls of the two low-pressure cylinders 5 are fixed with docking joints 6, and the outer walls of the two docking joints 6 are threaded with oil cap openings 19. The oil cap openings 19 are rotated to add lubricating fluid through the docking joints 6. The lubricating fluid plays an important role in the operation of the air compressor. For example, it forms a sealing isolation layer during the compression process, reduces friction, thereby improving the operating efficiency of the equipment and extending its service life.

[0029] The outer walls of the two low-pressure cylinders 5 are fixedly connected with valve covers 7, and double-suction and double-exhaust valves are fixedly installed inside the two valve covers 7. The valve covers 7 protect the double-suction and double-exhaust valves. The double-suction and double-exhaust valves can simultaneously inhale gas when the aluminum piston (the crankshaft rotates to drive the aluminum piston to move back and forth) goes up and down, that is, when the aluminum piston goes down, the intake valve on one side opens to inhale gas; and when the aluminum piston goes up, the intake valve on the other side also opens to continue to inhale gas, which can significantly improve the gas intake efficiency and reduce the problem of reduced compression efficiency due to insufficient gas intake.

[0030] The outer walls of the two low-pressure cylinders 5 are fixed with air pipe joints 11, the outer walls of the two air pipe joints 11 are fixed with air distribution pipes 12, one end of the two air distribution pipes 12 is fixed with the same main air pipe 13, the outer walls of the two valve cover shells 7 are fixed with air filters 14, the two air filters 14 are symmetrically arranged, the two air filters 14 are respectively located on one side of the two low-pressure cylinders 5, and the air filters 14 are externally installed to facilitate air filtration, and the internal structure of the air filter 14 adopts a multi-layer wire mesh structure to increase the filtration efficiency. The air filter 14 filters dust, impurities, oil mist, moisture and other particulate matter in the air entering the air compressor case 4.

[0031] The outer wall of the low-pressure cylinder 5 is provided with a protective assembly, which includes two cover plates 9. The outer walls of the two low-pressure cylinders 5 are evenly fixed with multiple protective covers 8. The outer walls of the two low-pressure cylinders 5 and the multiple protective covers 8 are threadedly connected with bolts 10. The outer walls of the two cover plates 9 are provided with multiple threaded holes, and the inner walls of the multiple threaded holes are respectively threadedly connected to the outer walls of the multiple bolts 10. The cover plates 9 and the protective covers 8 can seal the internal space of the low-pressure cylinder 5 to prevent gas leakage, thereby ensuring the normal operation of the system, and can effectively prevent external factors such as dust and rainwater from polluting and corroding the interior of the low-pressure cylinder 5, thereby extending the service life of the equipment.

[0032] The two low-pressure cylinders 5 utilize a parallel dual-cylinder, four-valve structure. If one cylinder fails, the other can still independently maintain over 60% output efficiency. This fault-tolerant design, combined with the IP protection rating of the valve housing 7, the foreign object interception capability of the air screen 18, and the rubber seal of the motor coupling 3, makes the equipment particularly suitable for outdoor applications with high humidity and dust, such as port machinery and tunnel construction, where continuous operation is required.

[0033] A cooling assembly is provided on the outer wall of the air compressor case 4, and the cooling assembly includes fan blades 16. The outer wall of the output shaft of the main motor 2 is fixedly connected to the crankshaft, and a fan coupling 15 is fixedly provided on one end of the crankshaft. The fan coupling 15 increases the sealing between one end of the crankshaft and the air compressor case 4. The outer wall of the fan coupling 15 is fixedly connected to the outer wall of the air compressor case 4, and one end of the crankshaft is fixedly connected to the outer wall of the fan blades 16. The operation of the main motor 2 drives the crankshaft to rotate, and the rotation of the crankshaft drives the fan blades 16 to rotate. The rotation of the fan blades 16 draws outside air into the outer wall of the air compressor case 4, forming a cooling effect.

[0034] A gasket 20 is sleeved on one end of the crankshaft, and the gasket 20 is located inside the fan blade 16. The outer wall of the fan blade 16 is sleeved with a cover 17. The bottom of the cover 17 is fixedly connected to the top of the base 1. The inside of the cover 17 is fixedly connected to a wind net 18. The wind net 18 prevents foreign objects from colliding with the fan blade 16 and protects it.

[0035] Working principle: When in use, the twin-cylinder air compressor is driven by the main motor 2, and the motor output shaft is connected to the crankshaft through the motor coupling 3, driving the aluminum piston to reciprocate in the low-pressure cylinder 5; when the aluminum piston moves downward, the double suction and double exhaust valve on one side opens, sucking in external air and purifying it through the air filter 14; when the aluminum piston moves upward, the suction valve on the other side opens synchronously, continuing to suck in air, realizing double suction and high-efficiency air intake. At the same time, the aluminum piston compresses the sucked-in gas and discharges the high-pressure gas through the exhaust valve. The compressed gas enters the air pipe joint 11 through the valve cover 7 , it is fed into the main air pipe 13 for output through the air distribution pipe 12, and the lubricating fluid is injected into the low-pressure cylinder 5 through the oil cap port 19 of the joint 6, forming a sealed isolation layer in the cylinder body, reducing the friction of the aluminum piston, and enhancing the air tightness, protecting the components from gas leakage and external pollutants, and extending the life of the equipment. When the main motor 2 drives the crankshaft to rotate, the fan blades 16 fixed to the end of the crankshaft rotate synchronously, sucking the external air to the surface of the air compressor case 4 to accelerate heat dissipation. The motor coupling 3 and the fan coupling 15 enhance the sealing of the air compressor case 4 and ensure transmission efficiency at the same time.

[0036] The standard parts used in the present invention can all be purchased on the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. They will not be described in detail here, and the components known to technical personnel in this field, their structures and principles are all known to technical personnel in this field through technical manuals or through conventional experimental methods.

[0037] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A novel double-cylinder air compressor, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a main motor (2), the outer wall of the output shaft of the main motor (2) is fixedly sleeved with a motor coupling (3), the bottom of the motor coupling (3) is fixedly connected to the top of the base (1), the top of the base (1) is fixedly connected to an air compressor housing (4), the outer wall of the air compressor housing (4) is fixedly inlaid with two low-pressure cylinders (5), the interiors of the two low-pressure cylinders (5) are movably equipped with aluminum pistons, and the outer walls of the two low-pressure cylinders (5) are fixedly inlaid with aluminum pistons. Both are fixedly connected with a valve cover (7), and double suction and double exhaust valves are fixedly installed inside the two valve covers (7). The outer wall of the low-pressure cylinder (5) is provided with a protective component. The outer walls of the two low-pressure cylinders (5) are fixedly connected with an air pipe joint (11), and the outer walls of the two air pipe joints (11) are fixedly connected with a branch air pipe (12). One end of the two branch air pipes (12) is fixedly connected with the same main air pipe (13). The outer wall of the air compressor housing (4) is provided with a cooling component.

2. A novel double-cylinder air compressor according to claim 1, characterized in that: The protective assembly includes two cover plates (9), the outer walls of the two low-pressure cylinders (5) are evenly fixedly connected with a plurality of protective covers (8), the outer walls of the two low-pressure cylinders (5) and the plurality of protective covers (8) are threadedly connected with bolts (10), the outer walls of the two cover plates (9) are provided with a plurality of threaded holes, and the inner walls of the plurality of threaded holes are respectively threadedly connected with the outer walls of the plurality of bolts (10).

3. A novel double-cylinder air compressor according to claim 1, characterized in that: The cooling assembly includes a fan blade (16), the outer wall of the output shaft of the main motor (2) is fixedly connected to a crankshaft, one end of the crankshaft is fixedly sleeved with a fan coupling (15), the outer wall of the fan coupling (15) is fixedly connected to the outer wall of the air compressor case (4), one end of the crankshaft is fixedly connected to the outer wall of the fan blade (16), the outer wall of the fan blade (16) is sleeved with a cover (17), and the bottom of the cover (17) is fixedly connected to the top of the base (1).

4. A novel double-cylinder air compressor according to claim 1, characterized in that: The outer walls of the two low-pressure cylinders (5) are both fixed with butt joints (6) that communicate with each other, and the outer walls of the two butt joints (6) are both threadedly sleeved with oil cap openings (19).

5. A novel double-cylinder air compressor according to claim 1, characterized in that: The outer walls of the two valve housings (7) are both fixed with air filters (14) that are in communication with each other.

6. A novel double-cylinder air compressor according to claim 3, characterized in that: One end of the crankshaft is sleeved with a gasket (20), and the gasket (20) is located inside the fan blade (16).

7. A novel double-cylinder air compressor according to claim 3, characterized in that: The interior of the cover body (17) is fixedly connected with a wind net (18).

8. A novel double-cylinder air compressor according to claim 5, characterized in that: The two air filters (14) are symmetrically arranged, and the two air filters (14) are respectively located on one side of the two low-pressure cylinders (5).

9. A novel double-cylinder air compressor according to claim 1, characterized in that: The two low-pressure cylinders (5) are symmetrically arranged, and are respectively located on both sides of the top of the air compressor housing (4).

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