A reciprocating piston air compressor

Abstract

The invention discloses a novel reciprocating piston air compressor, relates to the technical field of air compressors, solves the problem that impurities in the lubricating oil in the crankcase of the existing air compressor are inconvenient to clean, comprises an air storage tank, a mounting plate and a crankcase, wherein the mounting plate is fixed on the top of the air storage tank, the crankcase is fixed on the mounting plate by bolts, the crankcase is rotatably connected to a main shaft inside, the middle part of the main shaft is transmission-connected to a crankshaft connecting rod mechanism, both sides of the main shaft are transmission-connected to synchronous filter components for automatically cleaning impurities entering the lubricating oil, the invention inputs power to the synchronous filter component through the main shaft, the three groups of oil shoveling mechanisms on the synchronous filter component intermittently collect the lubricating oil, and then intermittently pour it into the oil filter mechanism, thereby realizing multiple filtering and cleaning of the lubricating oil, thereby reducing impurities in the lubricating oil entering the lubrication system of the parts, reducing the wear of the mechanical parts, and improving the use efficiency of the lubricating oil.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, in particular to a novel reciprocating piston air compressor. Background Art

[0002] The piston air compressor is a type of reciprocating air compressor. Its compression element is a piston that reciprocates inside the cylinder. The piston and the gas are compressed. Derivative products include air compressors, assembly line equipment, plastic machines, fans, etc.

[0003] At present, the crankcase of the existing air compressor is filled with lubricating oil, so that the parts in the crankcase can be lubricated by the lubricating oil. In actual use, the carbon black or oil residue produced by the oxidation and deterioration of the parts in the crankcase will float on the surface of the lubricating oil. These impurities remain in the lubricating oil during the lubrication process and enter the lubrication system of each part in the crankcase, thereby accelerating the wear of mechanical parts, resulting in a short service life of the mechanical parts and affecting the efficiency of the lubricating oil. In addition, some mechanical parts will produce metal particles due to wear, and these metal particles will sink to the bottom of the crankcase cavity, which is inconvenient to clean. For this reason, we propose a new reciprocating piston air compressor. Summary of the invention

[0004] The object of the present invention is to provide a reciprocating piston air compressor which can automatically clean all-round impurities in the crankcase lubricating oil of the air compressor, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a novel reciprocating piston air compressor, comprising an air storage tank, a mounting plate and a crankcase, wherein the mounting plate is fixed to the top of the air storage tank, the crankcase is fixed to the mounting plate by bolts, a main shaft is rotatably connected inside the crankcase, a crankshaft connecting rod mechanism is transmission-connected to the middle of the main shaft, and both sides of the main shaft are transmission-connected to synchronous filter components for automatically cleaning impurities entering the lubricating oil; the synchronous filter component comprises two circular plates fixedly sleeved on the outer side of the main shaft, three groups of oil shoveling mechanisms are arranged between the two circular plates, an oil filter mechanism is arranged on one side of the circular plate, a limit plate is arranged on the top of the oil filter mechanism, the limit plate is fixedly connected to the inner wall of the crankcase, an oil stirring mechanism is arranged between the crankshaft connecting rod mechanism and the circular plate, power is input to the circular plate through the main shaft, and the circular plate drives the three groups of oil shoveling mechanisms to intermittently collect the lubricating oil, and then intermittently pour it into the oil filter mechanism, thereby realizing multiple filtering and cleaning of the lubricating oil.

[0006] Preferably, the oil shoveling mechanism includes an oil shoveling bucket, a shoveling plate and a fixing rod, the two ends of the oil shoveling bucket are respectively fixed between the two circular plates by the fixing rod, the shoveling plate is fixed to the front end of the lower surface of the shoveling bucket and extends downwardly at an angle, and an attraction member is provided at the inner bottom of the oil shoveling bucket, which is driven to rotate by the rotation of the circular plate, and the oil shoveling bucket cooperates with the shoveling plate to continuously scoop up the lubricating oil when passing the lowest position.

[0007] Preferably, the oil filtering mechanism includes an oil collecting shell with a groove at the bottom, an oil filter net is fixed inside the oil collecting shell, a U-shaped block is fixed to the end of the oil collecting shell away from the circular plate, a first rotating shaft is fixedly sleeved inside the U-shaped block, two T-shaped plates are symmetrically fixed to the bottom of the limit plate, both sides of the first rotating shaft are rotatably connected to one end of the two T-shaped plates, and transmission mechanisms are provided on both sides of the oil collecting shell, and the lubricating oil scooped up by the oil shoveling mechanism will be poured into the oil collecting shell, and the generated carbon black or oil residue will be filtered and cleaned through the oil filter net inside the oil collecting shell.

[0008] Preferably, the transmission mechanism includes a transmission gear, a second rotating shaft, a driving pulley, a synchronous belt and a driven pulley, the second rotating shaft is rotatably connected to an end of the T-shaped plate away from the first rotating shaft, the transmission gear and the driving pulley are respectively fixedly sleeved on the two ends of the second rotating shaft, the driven pulley is fixedly sleeved on the end of the first rotating shaft and is transmission-connected to the driving pulley through the synchronous belt, and three groups of driving parts are evenly arranged on the outer side of the circular plate. When the oil shovel bucket passes directly above the oil receiving shell, the transmission mechanism can be triggered by the driving part for transmission, thereby driving the oil receiving shell to rotate a certain angle in the direction opposite to the rotation direction of the circular plate, so as to separate the two and prevent the oil receiving bucket from touching the oil receiving shell, thereby making the movement of the mechanism more reasonable.

[0009] Preferably, the driving member includes a connecting rod and an arc-shaped rack, and the arc-shaped rack is fixedly connected to the outer circumference of the circular plate through the connecting rod. When the oil shovel rotates to the left end of the upper surface of the oil collecting shell, the arc-shaped rack just meshes with the transmission gear, and the rotational power of the circular plate can be transmitted to the transmission mechanism through the driving member.

[0010] Preferably, a torsion spring is provided on the outer sleeve of the first rotating shaft, and two ends of the torsion spring are respectively connected to the side surface of the U-shaped block and the outer side wall of the first rotating shaft, so that the oil collecting shell can automatically return to its initial state through the torsion spring.

[0011] Preferably, the oil stirring mechanism includes a sleeve fixedly sleeved on the outside of the main shaft, and four groups of oil stirring blades are arranged in an array on the outside of the sleeve. The length of the oil stirring blades is greater than the height between the main shaft and the lubricating oil level. The oil stirring mechanism can, on the one hand, stir the lubricating oil to keep the lubricating oil in an active state, thereby splashing lubrication on the parts inside the crankcase; on the other hand, the flowing lubricating oil can be better discharged to the vicinity of the synchronous filter components on both sides, so that the synchronous filter components can better salvage the lubricating oil from all directions.

[0012] Preferably, the attracting member comprises a permanent magnet fixed to the bottom of the oil shovel bucket, and the number of the permanent magnets is plural, and the metal particles inside the lubricating oil can be adsorbed and cleaned by the permanent magnets.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention designs a synchronous filter assembly in the crankcase of the existing air compressor, inputs power to the synchronous filter assembly through the main shaft, and the three groups of oil shovel mechanisms on the synchronous filter assembly intermittently collect the lubricating oil, and then intermittently pour it into the oil filter mechanism, thereby realizing multiple filtering and cleaning of the lubricating oil, thereby reducing impurities in the lubricating oil entering the lubrication system of the parts, reducing the wear of the mechanical parts, increasing the service life of the mechanical parts, and also improving the use efficiency of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a front view of the overall structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the synchronous filtering component of the present invention;

[0018] Figure 4 It is a side view of the oil shoveling mechanism of the present invention;

[0019] Figure 5 It is a schematic diagram of the structure of the oil filter mechanism of the present invention;

[0020] Figure 6 It is a schematic diagram of the transmission mechanism structure of the present invention;

[0021] Figure 7 This is a schematic diagram of the structure of the driving member of the present invention;

[0022] Figure 8 This is a schematic diagram of the oil stirring mechanism structure of the present invention;

[0023] Fig. 9 It is a schematic diagram of the structure of the attraction member of the present invention.

[0024] In the figure: 1-air storage tank; 2-mounting plate; 3-crankcase; 4-main shaft; 5-crankshaft connecting rod mechanism; 6-synchronous filter assembly; 7-circular plate; 8-oil shoveling mechanism; 9-oil filtering mechanism; 10-limiting plate; 11-oil stirring mechanism; 12-oil shoveling bucket; 13-shoveling plate; 14-fixing rod; 15-attracting member; 16-oil receiving shell; 17-oil filter net; 18-U-shaped block; 19-first rotating shaft; 20-T-shaped plate; 21-transmission mechanism; 22-transmission gear; 23-second rotating shaft; 24-driving pulley; 25-synchronous belt; 26-driven pulley; 27-driving member; 28-connecting rod; 29-arc rack; 30-torsion spring; 31-sleeve; 32-oil stirring blade; 33-permanent magnet. Implementation

[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 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 creative work are within the scope of protection of the present invention. Example

[0026] like Figure 1-Figure 3 As shown, a new type of reciprocating piston air compressor in the figure includes an air storage tank 1, a mounting plate 2 and a crankcase 3. The mounting plate 2 is fixed to the top of the air storage tank 1, and the crankcase 3 is fixed to the mounting plate 2 by bolts. The crankcase 3 is rotatably connected to a main shaft 4 inside, and the middle of the main shaft 4 is transmission-connected to a crankshaft connecting rod mechanism 5. Both sides of the main shaft 4 are transmission-connected to a synchronous filter assembly 6 for automatically cleaning impurities entering the lubricating oil; the synchronous filter assembly 6 includes two circular plates 7 fixedly sleeved on the outside of the main shaft 4, and three sets of oil shoveling mechanisms 8 are arranged between the two circular plates 7. One side of the circular plate 7 An oil filter mechanism 9 is provided, and a limit plate 10 is provided on the top of the oil filter mechanism 9. The limit plate 10 is fixedly connected to the inner wall of the crankcase 3. An oil stirring mechanism 11 is provided between the crankshaft connecting rod mechanism 5 and the circular plate 7. Power is input to the circular plate 7 through the main shaft 4. The circular plate 7 drives three groups of oil shoveling mechanisms 8 to intermittently collect the lubricating oil, and then intermittently pour it into the oil filter mechanism 9, thereby realizing multiple filtering and cleaning of the lubricating oil, thereby reducing impurities in the lubricating oil entering the lubrication system of components, reducing the wear of mechanical parts, increasing the service life of mechanical parts, and improving the use efficiency of lubricating oil.

[0027] Among them, Figure 4As shown, in order to facilitate the salvage of the lubricating oil, the oil shoveling mechanism 8 includes an oil shoveling bucket 12, a shoveling plate 13 and a fixing rod 14. The two ends of the oil shoveling bucket 12 are respectively fixed between the two circular plates 7 by the fixing rod 14. The shoveling plate 13 is fixed to the front end of the lower surface of the shoveling bucket and extends downwardly. The inner bottom of the oil shoveling bucket 12 is provided with a suction member 15, which drives the rotation of the circular plate 7 through the main shaft 4 and then drives the rotation of the oil shoveling bucket 12. Multiple oil shoveling buckets 12 cooperate with multiple shoveling plates 13 to continuously scoop up the lubricating oil when passing the lowest position.

[0028] At the same time, if Figure 5 and Figure 6 As shown, in order to facilitate filtering the poured lubricating oil, the oil filtering mechanism 9 includes an oil receiving shell 16 with a groove at the bottom, an oil filter net 17 is fixed inside the oil receiving shell 16, a U-shaped block 18 is fixed to the end of the oil receiving shell 16 away from the circular plate 7, and a first rotating shaft 19 is fixedly sleeved inside the U-shaped block 18. Two T-shaped plates 20 are symmetrically fixed to the bottom of the limiting plate 10, and both sides of the first rotating shaft 19 are rotatably connected to one end of the two T-shaped plates 20. Transmission mechanisms 21 are provided on both sides of the oil receiving shell 16. The scooped lubricating oil is poured into the oil receiving shell 16 through the oil shovel 12, and the generated carbon black or oil residue is filtered and cleaned through the oil filter net 17 inside it.

[0029] In addition, if Figure 4 and Fig. 9 As shown, in order to facilitate the adsorption and cleaning of metal particles in the lubricating oil, the attracting member 15 includes a permanent magnet 33 fixed to the bottom of the oil shovel 12, and the number of the permanent magnet 33 is set to be multiple.

[0030] Specific implementation method: the motor on the air compressor is started, and then transmitted to the main shaft 4 through the belt drive mechanism, the main shaft 4 drives the crankshaft connecting rod mechanism 5 and the circular plate 7 to rotate together, the crankshaft connecting rod mechanism 5 drives the piston to complete the reciprocating motion to realize the compression of the gas, and at the same time the circular plate 7 drives the oil shovel bucket 12 to rotate when rotating, when the oil shovel bucket 12 rotates to the bottom, the shovel plate 13 of the oil shovel bucket 12 will extend below the liquid level of the lubricating oil, and then the circular plate 7 will continue to rotate, so as to salvage part of the lubricating oil into the oil shovel bucket 12 for storage, and the permanent magnet 33 in the oil shovel bucket 12 will The metal particles inside the lubricating oil are adsorbed, and as the oil shovel 12 continues to rotate, when it rotates to a downward tilted state, the lubricating oil stored therein will pour into the oil receiving shell 16, and the other carbon black or oil residue that is not attracted by the permanent magnet 33 will be filtered and cleaned through the oil filter net 17 arranged in the oil receiving shell 16. After filtering and cleaning, it will flow out from the bottom of the oil receiving shell 16, and then the circular plate 7 will continue to rotate, carrying the oil shovel 12 to rotate to the lowest position again for salvage, thereby realizing multiple filtering and cleaning of the lubricating oil, and then reducing the impurities in the lubricating oil entering the lubrication system of the components. Example

[0031] like Figure 5 and Figure 6 As shown, this embodiment further illustrates Example 1. The transmission mechanism 21 shown in the figure includes a transmission gear 22, a second rotating shaft 23, a driving pulley 24, a synchronous belt 25 and a driven pulley 26. The second rotating shaft 23 is rotatably connected to the end of the T-plate 20 away from the first rotating shaft 19. The transmission gear 22 and the driving pulley 24 are respectively fixedly sleeved on both ends of the second rotating shaft 23. The driven pulley 26 is fixedly sleeved on the end of the first rotating shaft 19 and is transmission-connected to the driving pulley 24 through the synchronous belt 25. Three groups of driving members 27 are evenly arranged on the outer side of the circular plate 7. When the oil shovel 12 passes directly above the oil receiving shell 16, the transmission mechanism 21 can be triggered by the driving member 27 for transmission, thereby driving the oil receiving shell 16 to rotate a certain angle in the direction opposite to the rotation direction of the circular plate 7, so that the two are separated to prevent the oil receiving bucket from touching the oil receiving shell 16, so that the movement of the mechanism is more reasonable.

[0032] Among them, Figure 7 As shown, in order to transmit the rotational power of the circular plate 7 to the transmission mechanism 21, the driving member 27 includes a connecting rod 28 and an arcuate rack 29. The arcuate rack 29 is fixedly connected to the outer circumference of the circular plate 7 through the connecting rod 28. When the oil shovel 12 rotates to the left end of the upper surface of the oil receiving shell 16, the arcuate rack 29 just meshes with the transmission gear 22.

[0033] In addition, if Figure 6 As shown, a torsion spring 30 is sleeved on the outer periphery of the first rotating shaft 19, and two ends of the torsion spring 30 are respectively connected to the side surface of the U-shaped block 18 and the outer side wall of the first rotating shaft 19, so that the oil receiving housing 16 can automatically return to the initial state through the torsion spring 30.

[0034] In this embodiment: when pouring lubricating oil, the arc rack 29 and the transmission gear 22 enter a meshing state, the transmission gear 22 drives the second rotating shaft 23 to rotate, the second rotating shaft 23 drives the driving pulley 24 to rotate, the driving pulley 24 drives the driven pulley 26 to rotate through the synchronous belt 25, and the driven pulley 26 drives the first rotating shaft 19 to rotate, and the first rotating shaft 19 drives the entire oil receiving shell 16 to rotate in the direction opposite to the rotation direction of the circular plate 7, so that the oil receiving shell 16 rotates a certain angle, so that the oil shovel 12 is separated from the oil receiving shell 16 to prevent the oil receiving shell 16 from touching the oil receiving shell 16, until the arc rack 29 and the transmission gear 22 are disengaged, at this time the oil shovel 12 just rotates to the position where the lubricating oil is no longer poured, and then the oil receiving shell 16 is restored to the initial state again under the elastic restoring force of the torsion spring 30, until the arc rack 29 at the position of the next oil shovel 12 contacts the transmission gear 22, that is, the next oil pouring and filtering process begins. Example

[0035] like Figure 3 and Figure 8 As shown, this embodiment further illustrates Example 1, and the synchronous filter assembly 6 shown in the figure includes two circular plates 7 fixedly sleeved on the outside of the main shaft 4, three groups of oil shoveling mechanisms 8 are arranged between the two circular plates 7, an oil filter mechanism 9 is arranged on one side of the circular plate 7, a limit plate 10 is arranged on the top of the oil filter mechanism 9, the limit plate 10 is fixedly connected to the inner wall of the crankcase 3, and an oil stirring mechanism 11 is arranged between the crankshaft connecting rod mechanism 5 and the circular plate 7; the oil stirring mechanism 11 includes a sleeve 31 fixedly sleeved on the outside of the main shaft 4, and four groups of oil stirring blades 32 are distributed in an array on the outside of the sleeve 31, and the length of the oil stirring blades 32 is greater than the height between the main shaft 4 and the lubricating oil level.

[0036] In this embodiment: the main shaft 4 drives the sleeve 31 to rotate, and the sleeve 31 drives the four oil stirring blades 32 to rotate. On the one hand, the oil stirring blades 32 can stir the lubricating oil when rotating, so that the lubricating oil is in an active state, and splash lubrication is performed on the components inside the crankcase 3. On the other hand, the flowing lubricating oil can be better discharged to the vicinity of the synchronous filter assembly 6 on both sides, so that the synchronous filter assembly 6 can better salvage the lubricating oil from all directions.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reciprocating piston air compressor, comprising an air storage tank (1), a mounting plate (2) and a crankcase (3), wherein the mounting plate (2) is fixed to the top of the air storage tank (1), and the crankcase (3) is fixed to the mounting plate (2) by bolts, characterized in that: The crankcase (3) is rotatably connected to a main shaft (4) inside, the middle of the main shaft (4) is drivingly connected to a crankshaft connecting rod mechanism (5), and both sides of the main shaft (4) are drivingly connected to synchronous filter components (6) for automatically cleaning impurities entering the lubricating oil; The synchronous filter assembly (6) comprises two circular plates (7) fixedly sleeved on the outside of the main shaft (4), three sets of oil shoveling mechanisms (8) are arranged between the two circular plates (7), an oil filter mechanism (9) is arranged on one side of the circular plate (7), a limit plate (10) is arranged on the top of the oil filter mechanism (9), the limit plate (10) is fixedly connected to the inner wall of the crankcase (3), and an oil stirring mechanism (11) is arranged between the crankshaft connecting rod mechanism (5) and the circular plate (7).

2. A reciprocating piston air compressor according to claim 1, characterized in that: The oil shoveling mechanism (8) comprises an oil shoveling bucket (12), a shoveling plate (13) and a fixing rod (14); the two ends of the oil shoveling bucket (12) are respectively fixed between the two circular plates (7) via the fixing rod (14); the shoveling plate (13) is fixed to the front end of the lower surface of the shoveling bucket and extends downwardly at an angle; and a suction member (15) is provided at the inner bottom of the oil shoveling bucket (12).

3. A reciprocating piston air compressor according to claim 2, characterized in that: The oil filter mechanism (9) comprises an oil receiving shell (16) with a groove at the bottom, an oil filter net (17) is fixed inside the oil receiving shell (16), a U-shaped block (18) is fixed at one end of the oil receiving shell (16) away from the circular plate (7), a first rotating shaft (19) is fixedly sleeved inside the U-shaped block (18), two T-shaped plates (20) are symmetrically fixed at the bottom of the limit plate (10), both sides of the first rotating shaft (19) are rotatably connected to one end of the two T-shaped plates (20), and transmission mechanisms (21) are provided on both sides of the oil receiving shell (16).

4. A reciprocating piston air compressor according to claim 3, characterized in that: The transmission mechanism (21) comprises a transmission gear (22), a second rotating shaft (23), a driving pulley (24), a synchronous belt (25) and a driven pulley (26); the second rotating shaft (23) is rotationally connected to an end of the T-shaped plate (20) away from the first rotating shaft (19); the transmission gear (22) and the driving pulley (24) are respectively fixedly sleeved on two ends of the second rotating shaft (23); the driven pulley (26) is fixedly sleeved on an end of the first rotating shaft (19) and is transmission-connected to the driving pulley (24) via the synchronous belt (25); and three groups of driving members (27) are evenly arranged on the outer side of the circular plate (7).

5. A reciprocating piston air compressor according to claim 4, characterized in that: The driving member (27) comprises a connecting rod (28) and an arc-shaped rack (29); the arc-shaped rack (29) is fixedly connected to the outer circumference of the circular plate (7) via the connecting rod (28); when the oil shovel (12) rotates to the left end of the upper surface of the oil receiving shell (16), the arc-shaped rack (29) just meshes with the transmission gear (22).

6. A reciprocating piston air compressor according to claim 3, characterized in that: A torsion spring (30) is sleeved on the outer periphery of the first rotating shaft (19), and two ends of the torsion spring (30) are respectively connected to the side surface of the U-shaped block (18) and the outer side wall of the first rotating shaft (19).

7. A reciprocating piston air compressor according to claim 1, characterized in that: The oil stirring mechanism (11) comprises a sleeve (31) fixedly sleeved on the outside of the main shaft (4), and four groups of oil stirring blades (32) are arranged in an array on the outside of the sleeve (31), and the length of the oil stirring blades (32) is greater than the height between the main shaft (4) and the lubricating oil level.

8. A reciprocating piston air compressor according to claim 2, characterized in that: The attracting member (15) comprises a permanent magnet (33) fixed to the inner bottom of the oil scoop bucket (12), and a plurality of the permanent magnets (33) are provided.

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