Air passage structure of four-cylinder piston compressor

Abstract

The utility model relates to the technical field of air compressors, in particular to an air passage structure of a four-cylinder piston compressor, which comprises a support and a motor, a driving mechanism is mounted on the support, the motor is mounted on the support, an output end of the motor is connected with a rotating shaft through a coupler, two worm grooves are sequentially arranged on the rotating shaft, and the worm grooves are connected with the motor. The rotating shaft is driven by the motor to drive the fan to rotate, high heat in the inner cavity of the compressor shell is sucked and discharged out of the air holes through the dustproof net, heat dissipation of the inner cavity is accelerated, the rotating speed of the fan is synchronously changed according to the speed of the rotating shaft, and when the rotating speed of the rotating shaft is high, the rotating speed of the fan is also high; heat generated in the compressor is directly sucked and discharged, the effect is better, visual and efficient, and the problems that compressed gas is heated to be in a high-heat state, and consequently heat dissipation is unstable and the effect is not ideal are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to an air passage structure of a four-cylinder piston compressor. Background Art

[0002] Oil-free air compressor is an air compressor without lubricating oil in the cylinder and motion mechanism. Oil-free air compressor not only makes the air path system free of oil mist pollution and can provide clean compressed air, but also does not have the potential explosion hazard due to the presence of hydrocarbons. It has the advantages of fuel saving, environmental protection, easy operation and low maintenance cost. It is widely used in food, medicine, textile, chemical industry and military industry. In view of this, we propose a four-cylinder piston compressor airway structure.

[0003] According to the Chinese patent publication number CN219159129U, the patent provides an air passage structure of an oil-free compressor, including a crankcase and one or more piston cylinders arranged on the crankcase; characterized in that an air cavity shell is provided on the piston cylinder to form an air inlet cavity and an air outlet cavity isolated from each other with the piston cylinder, and an air inlet connected to the air inlet cavity and an air outlet connected to the air outlet cavity are provided on the piston cylinder. After the gas enters the end cover from the air inlet end, the air inlet passage, the air inlet passage and the air inlet cavity enter the piston cylinder and is compressed by the piston that reciprocates in the piston rod body, and then is discharged from the compressor through the air outlet, the air outlet cavity, the air outlet passage and the air outlet passage. The gas flows in the air flow passage in the compressor shell to cool and dissipate heat for the compressor shell; and the air passage installation can be realized by installing the end cover and the air cavity shell, thereby simplifying the air passage structure, reducing the connection and assembly of parts, reducing the occurrence of air leakage, and reducing the difficulty of producing and processing components.

[0004] In the above patent, the compressed gas flows through the compressor shell to cool down and dissipate heat. However, due to the continuous movement and friction of the crankshaft piston, the temperature of the inner cavity of the compressor rises. At this time, the gas located in the hot cavity itself has heat. Therefore, when the hot gas flows through the compressor shell, the cooling and heat dissipation effect is not ideal. Utility Model Content

[0005] The utility model aims to provide an air passage structure for a four-cylinder piston compressor, which solves the problem that the continuous movement and friction of the crankshaft piston in the compressor causes the gas in the hot chamber to be in a high-temperature state, so the cooling and heat dissipation effect is not ideal.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A four-cylinder piston compressor air passage structure comprises a support, a driving mechanism is mounted on the support and comprises a motor, the motor is mounted on the support, the output end of the motor is connected to a rotating shaft via a coupling, two spiral grooves are sequentially provided on the rotating shaft, a fan is sleeved on the end of the rotating shaft away from the motor, an air passage mechanism is mounted on the driving mechanism and comprises a rotating rod, a bevel gear and a turntable are sequentially sleeved on the rotating rod, the bevel gear is meshed with the spiral groove, one end of a rocker arm is hinged to the turntable via a latch, the other end of the rocker arm is hinged to a push arm via a latch, and a piston head is connected to the end of the push arm away from the rocker arm.

[0008] Preferably, there are four airway mechanisms, and the bevel gears in every two of the airway mechanisms are respectively meshed with the two sides of one of the spiral grooves, and the four airway mechanisms are symmetrically arranged with the rotating shaft as the midline.

[0009] Preferably, a base is installed on the support, a leg is fixedly connected to the base, a compressor casing is fixedly connected to the leg, a rotating groove corresponding to the rotating shaft is opened in the compressor casing, and the rotating shaft movably penetrates the inner wall of the rotating groove.

[0010] Preferably, an air hole is formed at one end of the compressor housing away from the motor, a dustproof net is installed on the inner wall of the air hole, and the fan is connected to the rotating groove through the dustproof net, and the fan is located between the inner walls of the air hole.

[0011] Preferably, four mounting seats 1 are integrally connected to the compressor casing, the four mounting seats 1 are all hollow structures, and are connected to the rotating grooves in sequence, and each mounting seat 1 is integrally connected to a mounting seat 2, each mounting seat 2 is a hollow structure, and is connected to each mounting seat 1.

[0012] Preferably, each of the mounting seats 2 is integrally connected with a cylinder, each of the rocker arms is slidably connected to the inner wall of each cylinder, each of the piston heads is slidably connected to the inner wall of each cylinder, each of the bevel gears is located between the inner walls of each mounting seat 1, one end of each rotating rod away from the turntable is rotatably connected to the inner wall of the mounting seat 1 through a bearing, and each of the turntables is located between the inner walls of each mounting seat 2.

[0013] Preferably, each of the cylinders is integrally connected with an intake pipe and an exhaust pipe, each of the intake pipes is respectively installed with a valve one, and each of the exhaust pipes is respectively installed with a valve two.

[0014] By means of the above technical solution, the utility model provides an air passage structure of a four-cylinder piston compressor, which has at least the following beneficial effects:

[0015] (1) The utility model can drive the fan to rotate by driving the rotating shaft through the motor, so as to absorb the high heat in the inner cavity of the compressor casing and discharge it to the outside of the air hole through the dustproof net, thereby accelerating the heat dissipation of the inner cavity. The speed of the fan changes synchronously with the speed of the rotating shaft. When the rotating speed of the rotating shaft is high, the speed of the fan is also fast, and the heat generated inside the compressor is directly sucked and discharged. The effect is more intuitive and efficient, and it avoids the compressed gas itself being heated to a high temperature state, thereby causing the problem of unstable heat dissipation and unsatisfactory effect.

[0016] (2) The utility model drives the adjacent bevel gears by the rotational meshing of two spiral grooves, so that each bevel gear drives its own rotating rod to rotate, prompting each turntable to make the rocker arm rotate eccentrically, and drive the push arm to push the piston head to perform reciprocating compression movement in the cylinder. One motor drives four piston heads to perform crank linkage, which simplifies the driving method. The four-cylinder piston linkage is responded to at the cost of one driving part, and the fan is used to dissipate heat at the same time, which is economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the driving mechanism in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the airway mechanism in the utility model;

[0021] Figure 4 It is a schematic diagram of the overall rear structure of the utility model.

[0022] In the figure: 1. support; 2. driving mechanism; 201. motor; 202. rotating shaft; 203. snail groove; 204. fan; 3. airway mechanism; 301. rotating rod; 302. bevel gear; 303. rocker arm; 304. push arm; 305. piston head; 4. base; 5. support leg; 6. compressor casing; 7. air hole; 8. dust net; 9. mounting seat 1; 10. mounting seat 2; 11. cylinder; 12. intake duct; 13. valve 1; 14. exhaust duct; 15. valve 2. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1-4 The utility model provides an airway structure of a four-cylinder piston compressor, including a support 1, a driving mechanism 2 is installed on the support 1, and includes a motor 201, the motor 201 is installed on the support 1, the motor 201 is installed at a suitable height for driving operation, the output end of the motor 201 is connected to a rotating shaft 202 through a coupling, two spiral grooves 203 are sequentially provided on the rotating shaft 202, a fan 204 is sleeved on the end of the rotating shaft 202 away from the motor 201, an airway mechanism 3 is installed on the driving mechanism 2, and includes a rotating rod 301, and a bevel gear 302 and a rotating disk are sequentially sleeved on the rotating rod 301, The bevel gear 302 is meshed with the snail groove 203, and the two snail grooves 203 rotate and mesh to drive the adjacent bevel gears 302. One end of the rocker arm 303 is hinged on the turntable through a pin, and the other end of the rocker arm 303 is hinged with a push arm 304 through a pin. The push arm 304 is connected to the end away from the rocker arm 303 with a piston head 305. There are four airway mechanisms 3, and the motor 201 drives the four piston heads 305 to perform crank linkage. The bevel gears 302 in every two airway mechanisms 3 are respectively meshed on both sides of one of the snail grooves 203, and the four airway mechanisms 3 are symmetrically arranged with the rotating shaft 202 as the center line.

[0026] In this embodiment, the motor 201 drives the shaft 202 to drive the fan 204 to rotate, so as to extract the high heat from the inner cavity of the compressor casing 6 and discharge it to the outside of the air hole 7 through the dustproof net 8, thereby accelerating the heat dissipation of the inner cavity. The rotation speed of the fan 204 changes synchronously with the speed of the shaft 202. When the rotation speed of the shaft 202 is high, the rotation speed of the fan 204 is also fast, so the heat generated inside the compressor is directly extracted and discharged, which has a better, more intuitive and efficient effect, and avoids the compressed gas itself being heated to a high temperature state, thereby causing the problem of unstable heat dissipation and unsatisfactory effect.

[0027] Embodiment 2

[0028] See also Figure 1-4On the basis of the first embodiment, the utility model provides a technical solution: preferably, a base 4 is installed on the support 1, a leg 5 is fixedly connected to the base 4, a compressor housing 6 is fixedly connected to the leg 5, a rotation groove corresponding to the rotating shaft 202 is opened in the compressor housing 6, and the rotating shaft 202 movably penetrates to the inner wall of the rotation groove, an air hole 7 is opened at one end of the compressor housing 6 away from the motor 201, a dustproof net 8 is installed on the inner wall of the air hole 7, and the fan 204 is located between the inner walls of the air hole 7, four mounting seats 9 are integrally connected to the compressor housing 6, the four mounting seats 9 are all hollow structures, and are sequentially connected to the rotation groove, each mounting seat 9 is respectively integrally connected to a mounting seat 2 10, and each mounting seat 2 1 0 are hollow structures and are connected to each mounting seat 1 9 respectively. Each mounting seat 2 10 is integrally connected with a cylinder 11. Each rocker arm 303 is slidably connected to the inner wall of each cylinder 11 respectively. Each piston head 305 is slidably connected to the inner wall of each cylinder 11 respectively. Each bevel gear 302 is located between the inner walls of each mounting seat 1 9 respectively. One end of each rotating rod 301 away from the turntable is rotatably connected to the inner wall of the mounting seat 1 9 respectively through a bearing. Each turntable is located between the inner walls of each mounting seat 2 10 respectively. Each cylinder 11 is integrally connected with an intake duct 12 and an exhaust duct 14 respectively. Each intake duct 12 is respectively installed with a valve 13, and each exhaust duct 14 is respectively installed with a valve 2 15.

[0029] In this embodiment, the two spiral grooves 203 are rotated and meshed to drive the adjacent bevel gears 302, so that each bevel gear 302 drives its own rotating rod 301 to rotate, prompting each turntable to make the rocker arm 303 rotate eccentrically, and drive the push arm 304 to push the piston head 305 to perform reciprocating compression motion in the cylinder 11. One motor 201 is used to drive four piston heads 305 for crank linkage, which simplifies the driving method. The four-cylinder piston linkage is responded to at the cost of one driving component, and the fan 204 dissipates heat at the same time, which is economical and practical.

[0030] Working principle: the support 1 is used to support and install the motor 201, ensure that the motor 201 is adapted to the compressor housing 6, and is installed at a suitable height for driving operation. The rotating shaft 202 connected to the coupling can drive the fan 204 to rotate, and the rotation speed of the fan 204 changes synchronously with the speed of the rotating shaft 202. When the rotation speed of the rotating shaft 202 is high, the airway mechanism 3 in the compressor housing 6 moves fast, the friction frequency between the crankshaft and the piston is high, the heat generation is large, and the fan 204 rotates fast, which can suck the high heat from the inner cavity of the compressor housing 6 and discharge it to the outside of the air hole 7 through the dustproof net 8, thereby accelerating the heat dissipation of the inner cavity. The entire compressor housing 6 is a closed structure with only a one-way opening of the air hole 7, which can ensure that the flow direction of heat will not change alternately, thereby ensuring the stability of heat dissipation.

[0031] Compared with the comparative patent that relies on the compressed air flow to flow through the inner cavity of the compressor to dissipate heat, this case directly extracts and discharges the heat generated inside the compressor, which is more intuitive and efficient, and avoids the compressed gas itself being heated to a high temperature state, thereby causing problems such as unstable heat dissipation and unsatisfactory effects.

[0032] When the rotating shaft 202 in the present case rotates, the two spiral grooves 203 are used to rotate and mesh to drive the adjacent bevel gears 302, so that each bevel gear 302 rotates in its respective mounting seat 9, and drives its respective rotating rod 301 to rotate, prompting each turntable to rotate, and then makes its respective rocker arm 303 rotate eccentrically and drives the connected push arm 304 to limit the reciprocating motion in the cylinder 11, and at the same time prompts the piston head 305 to perform reciprocating compression motion in the cylinder 11. One motor 201 is used to drive four piston heads 305 for crank linkage, which simplifies the driving method and is significantly different from the multi-axis linkage and multi-drive components in the prior art. It responds to the four-cylinder piston linkage at the cost of one drive component, and at the same time allows the fan 204 to dissipate heat, which is economical and practical.

[0033] The support leg 5 is used to support the compressor casing 6 and is fixed on the base 4. During the operation of the piston head 305, the valve 13 is used to control the air intake of the suction pipe 12, and the valve 2 15 is used to control the exhaust volume of the exhaust pipe 14. The exhaust pipe 14 can be connected to external equipment for compressed gas recovery, thereby realizing the complete process of suction, compression and exhaust of the compressor.

[0034] 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.

[0035] 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 four-cylinder piston compressor airway structure, comprising a support (1), characterized in that: The support (1) is provided with a driving mechanism (2) and comprises a motor (201). The motor (201) is provided on the support (1). The output end of the motor (201) is connected to a rotating shaft (202) via a coupling. Two spiral grooves (203) are sequentially provided on the rotating shaft (202). A fan (204) is sleeved on one end of the rotating shaft (202) away from the motor (201). The driving mechanism (2) is provided with an airway mechanism (3) and comprises a rotating rod (301). A bevel gear (302) and a rotating disk are sleeved on the rotating rod (301) in sequence. The bevel gear (302) meshes with the spiral groove (203). One end of a rocker arm (303) is hingedly connected to the rotating disk via a latch. The other end of the rocker arm (303) is hingedly connected to a push arm (304) via a latch. The end of the push arm (304) away from the rocker arm (303) is connected to a piston head (305).

2. The air passage structure of a four-cylinder piston compressor according to claim 1, characterized in that: There are four airway mechanisms (3), and the bevel gears (302) in every two of the airway mechanisms (3) are respectively meshed on both sides of one of the spiral grooves (203), and the four airway mechanisms (3) are symmetrically arranged with the rotating shaft (202) as the center line.

3. The air passage structure of a four-cylinder piston compressor according to claim 2, characterized in that: The support (1) is provided with a base (4), the base (4) is fixedly connected with a support leg (5), the support leg (5) is fixedly connected with a compressor housing (6), a rotating groove corresponding to the rotating shaft (202) is provided in the compressor housing (6), and the rotating shaft (202) movably penetrates the inner wall of the rotating groove.

4. The air passage structure of a four-cylinder piston compressor according to claim 3, characterized in that: An air hole (7) is provided at one end of the compressor housing (6) away from the motor (201); a dustproof net (8) is installed on the inner wall of the air hole (7) and is connected to the rotating groove through the dustproof net (8); and the fan (204) is located between the inner walls of the air hole (7).

5. The air passage structure of a four-cylinder piston compressor according to claim 4, characterized in that: Four mounting seats (9) are integrally connected to the compressor housing (6), and the four mounting seats (9) are all hollow structures and are connected to the rotation grooves in sequence. Each mounting seat (9) is integrally connected to a mounting seat (10), and each mounting seat (10) is a hollow structure and is connected to each mounting seat (9).

6. The air passage structure of a four-cylinder piston compressor according to claim 5, characterized in that: Each of the second mounting seats (10) is provided with a cylinder (11) in an integral manner, each of the rocker arms (303) is slidably connected to the inner wall of each of the cylinders (11), each of the piston heads (305) is slidably connected to the inner wall of each of the cylinders (11), each of the bevel gears (302) is located between the inner walls of each of the first mounting seats (9), one end of each of the rotating rods (301) away from the rotating disk is rotatably connected to the inner wall of the first mounting seat (9) via a bearing, and each of the rotating disks is located between the inner walls of each of the second mounting seats (10).

7. The air passage structure of a four-cylinder piston compressor according to claim 6, characterized in that: Each of the cylinders (11) is provided with an air intake pipe (12) and an air exhaust pipe (14) in an integral manner. Each of the air intake pipes (12) is provided with a valve one (13), and each of the air exhaust pipes (14) is provided with a valve two (15).

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