Anti-vibration air compressor

Abstract

The invention discloses an anti-vibration air compressor, and particularly relates to the technical field of air compressors, the anti-vibration air compressor comprises a bottom plate, and an air storage device, an air compression device and a power supply device which are arranged above the bottom plate. According to the air compressor, through the arrangement of the anti-vibration assembly, in the air compression process of the air compressor, when compressed air in a buffer cylinder pushes back a plurality of piston plates to extrude hydraulic oil in a corresponding sliding cavity back into a plurality of vibration reduction cylinders again, a first throttling hole and a second throttling hole can play a role in throttling the hydraulic oil; by means of the technical scheme, hydraulic oil can be prevented from flowing back quickly, the first piston and the piston rod are prevented from rebounding quickly, impact force generated by buffered rebounding force on the air compressor in the opposite direction can be avoided, damage to parts of the air compressor is reduced, the damping effect is improved, and the service life of the air compressor is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of air compressors, and more particularly to a vibration-resistant air compressor. Background Art

[0002] A piston compressor is a compressor that relies on the reciprocating motion of a piston to pressurize and transport gas. It is a positive displacement compressor, also known as a "reciprocating piston compressor" or "reciprocating compressor". It is mainly composed of a working chamber, transmission components, a fuselage and auxiliary components. The working chamber is directly used to compress the gas, and is composed of a cylinder, a cylinder liner, a valve, a filler, a piston and a piston rod. The piston is driven by the piston rod to reciprocate in the cylinder. The volume of the working chambers on both sides of the piston changes in opposite directions in turn. The gas on the side with reduced volume is discharged through the valve due to increased pressure, and the gas is sucked in through the valve on the side with increased volume due to reduced air pressure. The transmission components are used to achieve reciprocating motion, including a crankshaft connecting rod, an eccentric slider, a swash plate, etc. Among them, the crankshaft connecting rod mechanism is the most commonly used, which is composed of a crosshead, a connecting rod and a crankshaft.

[0003] The Chinese patent with application number 202010486955.8 discloses a reciprocating piston type oil-free lubricated air compressor, including a base, a fixed base, a shock absorbing mechanism, a heat dissipation mechanism and an air compressor body, wherein the fixed base is fixedly connected to the outer wall of the base, the shock absorbing mechanism is mounted on one side of the base, the heat dissipation mechanism is mounted on one side of the shock absorbing mechanism, and the air compressor body is mounted on the other side of the heat dissipation mechanism. The air compressor not only has a shock absorbing function, which can avoid vibration and noise, and vibration causing hard contact and collision between the whole and other objects, thereby improving the overall service life, but also has a heat dissipation function, which can comprehensively blow air to cool the air compressor body to prevent its internal temperature from being too high and affecting the normal compression of the air, thereby ensuring the overall working efficiency and meeting the use needs in the existing market.

[0004] Although the shock absorbing mechanism of the above invention can reduce vibration through spring buffering, the use of springs for vibration reduction may cause the equipment to vibrate repeatedly, and the rebound force after spring buffering may produce an impact force in the opposite direction on the air compressor, which may cause damage to the parts of the air compressor and affect the service life of the air compressor; at the same time, when the air compressor operates at high power and speed, the vibration frequency generated will be higher, and the elastic coefficient of the spring is fixed, which means that it can only provide effective buffering within a certain force range, resulting in a greatly reduced vibration reduction effect, further affecting the service life of the air compressor.

[0005] The present invention provides a vibration-resistant air compressor, aiming to solve the problems that spring vibration reduction may cause damage to parts of the air compressor, and the spring can only provide effective buffering within a certain force range, resulting in greatly reduced vibration reduction effect and affecting the service life of the air compressor. Summary of the invention

[0006] The object of the present invention is to provide a vibration-resistant air compressor to solve the problem that the spring proposed in the above background technology for vibration reduction may cause damage to the parts of the air compressor, and the spring can only provide effective buffering within a certain force range, resulting in a greatly reduced vibration reduction effect and affecting the service life of the air compressor.

[0007] To achieve the above object, the present invention provides the following technical solution: an anti-vibration air compressor, comprising a base plate and an air storage device, an air compression device and a power supply device arranged above the base plate, and further comprising: The anti-vibration assembly comprises a plurality of damping cylinders fixedly connected to the top of the base plate, each of which is slidably connected to a first piston, and each of which is fixedly connected to a piston rod on a side away from the base plate; a buffer cylinder is fixedly connected to the top of the base plate, the interior of the buffer cylinder is divided into sliding chambers with the same number as the damping cylinder by a partition, and each of the sliding chambers is slidably connected to a piston plate; A first throttling hole is provided at the lower portion of each of the damping cylinders, and each of the first throttling holes is communicated with the interior of the corresponding damping cylinder. A second throttling hole having the same number and corresponding positions as the sliding cavity is provided at the lower portion of the buffer cylinder, and each of the second throttling holes is communicated with the interior of the corresponding sliding cavity. Each of the first throttling holes is connected to the corresponding second throttling hole through an oil pipe.

[0008] Specifically, the interior of each damping cylinder is filled with hydraulic oil on a side of the first piston away from the piston rod.

[0009] Specifically, a connecting piece is provided inside the buffer cylinder, and the bottom of the connecting piece is fixedly connected to the top of each piston plate respectively. When one of the piston plates moves, the other piston plates can be driven to move synchronously through the connecting piece.

[0010] Specifically, the air compression device comprises a mounting frame, one end of each piston rod away from the first piston is fixedly connected to the bottom of the mounting frame, and a cylinder is mounted on the mounting frame.

[0011] Specifically, a heat-conducting ring is provided on the fixed sleeve on the outer peripheral side of the cylinder, and an air storage chamber is opened inside the heat-conducting ring. The air storage chamber is connected with the interior of the buffer cylinder through a pipeline, and the air storage chamber is filled with thermal expansion gas. A second piston is slidably connected to the interior of the buffer cylinder, and the space between the second piston and the multiple piston plates is filled with gas for buffering.

[0012] Specifically, when the thermally expanded gas in the gas storage chamber enters the interior of the buffer cylinder, it can push the second piston to move, thereby compressing the gas between the second piston and the plurality of piston plates.

[0013] Specifically, a motor is installed on the mounting frame, and one end of the output end of the motor can drive the piston to reciprocate in the cylinder through the crankshaft connecting rod, sucking in external gas and compressing it and outputting it to the gas storage device for storage. A cooling fan is installed at the other end of the output end of the motor for dissipating heat when the air compressor is working.

[0014] Specifically, the gas storage device includes a gas tank, which is installed on the top of the base plate. The gas tank is connected to the gas output end of the air compression device and is used to store the air compressed by the air compression device.

[0015] Specifically, a protective shell is installed on the base plate, a pressure regulating valve assembly is installed on the protective shell, the input end of the pressure regulating valve assembly is connected with the output end of the gas tank through a hose, a switch for controlling the start and stop of the air compressor is installed on the top of the protective shell, and a handle located above the protective shell is installed on the base plate.

[0016] Specifically, the power supply device includes a plurality of battery packs, and the plurality of battery packs are used to provide electrical energy for the operation of the air compressor.

[0017] Technical effects and advantages of the present invention: 1. The present invention provides an anti-vibration component. When the air compressor is working and the air compression device is compressing air, the compressed air in the buffer cylinder pushes back the multiple piston plates, and the hydraulic oil in the corresponding sliding cavity is squeezed back into the multiple vibration damping cylinders. The first throttle hole and the second throttle hole can throttle the hydraulic oil, thereby preventing the hydraulic oil from flowing back quickly, preventing the first piston and the piston rod from rebounding quickly, and preventing the rebound force after buffering from generating an impact force in the opposite direction on the air compressor, thereby avoiding damage to the parts of the air compressor, thereby improving the vibration reduction effect and increasing the service life of the air compressor.

[0018] 2. In the present invention, through the setting of the connecting parts, multiple piston plates will move synchronously under the action of the connecting parts. When the multiple piston plates are moving synchronously, the piston plate corresponding to the piston rod at the lowest position will drive the remaining piston plates to draw the hydraulic oil in the volumes of multiple sliding chambers to a balanced level, so that the heights of the multiple piston rods are the same, avoiding the air compression device from tilting, further reducing vibration and impact force increase, improving the stability of the air compressor during operation, and further improving the service life of the air compressor.

[0019] 3. The present invention arranges the heat-conducting ring and the second piston. When the temperature on the cylinder rises, the temperature will be transferred to the heat-conducting ring, causing the heat-expanding gas in the air storage chamber to expand, pushing the second piston to compress the gas between the multiple piston plates, so that the distance moved by the multiple piston plates in the corresponding sliding chamber is reduced, and the speed at which the multiple piston plates push back the hydraulic oil is faster, so that the first piston drives the piston rod to rebound faster, thereby accelerating the response speed of the anti-vibration component, so that it can automatically adjust the buffering effect to adapt to the working state of the air compression device, improve the vibration reduction effect, and make the air compression device more stable when working, thereby further improving the reliability and service life of the air compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the overall structure of the present invention.

[0021] Figure 2 It is the rear view of the overall structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the internal structure of the protective shell of the present invention.

[0023] Figure 4 It is a partial structural schematic diagram of the air compression device of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure of the anti-vibration component of the present invention.

[0025] Figure 6 It is a cross-sectional view of the internal structure of the vibration damping cylinder of the present invention.

[0026] Figure 7 It is a cross-sectional view of the internal structure of the sliding cavity of the present invention.

[0027] Figure 8 This is a cross-sectional view of the internal structure of the buffer cylinder of the present invention.

[0028] Fig. 9 It is a partial structural schematic diagram of the connecting piece of the present invention.

[0029] Fig.10 It is a cross-sectional view of the internal structure of the heat-conducting ring of the present invention.

[0030] The accompanying drawings are marked as follows: 1. base plate; 11. protective shell; 12. pressure regulating valve assembly; 13. switch; 14. handle; 2. air storage device; 21. gas tank; 3. air compression device; 31. mounting frame; 32. cylinder; 33. motor; 34. cooling fan; 4. power supply device; 41. battery pack; 5. anti-vibration component; 51. shock absorber cylinder; 52. first piston; 53. piston rod; 54. buffer cylinder; 55. partition; 56. sliding chamber; 57. piston plate; 58. first throttle hole; 59. second throttle hole; 510. oil pipe; 511. connecting piece; 512. heat conductive ring; 513. air storage chamber; 514. second piston. DETAILED DESCRIPTION

[0031] 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.

[0032] Example 1, reference Figures 1 to 10 A vibration-resistant air compressor of this embodiment includes a base plate 1 and an air storage device 2, an air compression device 3 and a power supply device 4 arranged above the base plate 1.

[0033] refer to Figure 3 and Figure 4 The air compression device 3 includes a mounting frame 31, and one end of each piston rod 53 away from the first piston 52 is fixedly connected to the bottom of the mounting frame 31. A cylinder 32 is installed on the mounting frame 31, and a motor 33 is installed on the mounting frame 31. One end of the output end of the motor 33 can drive the piston to reciprocate in the cylinder 32 through the crankshaft connecting rod, and then compress and output the external gas to the gas storage device 2 for storage. A cooling fan 34 is installed at the other end of the output end of the motor 33 for dissipating heat when the air compressor is working.

[0034] refer to Figure 1 and Figure 2 The gas storage device 2 includes a gas tank 21, which is installed on the top of the base plate 1. The gas tank 21 is connected to the gas output end of the air compression device 3 and is used to store the air compressed by the air compression device 3.

[0035] refer to Figure 1 and Figure 2A protective shell 11 is installed on the bottom plate 1, and a pressure regulating valve assembly 12 is installed on the protective shell 11. The input end of the pressure regulating valve assembly 12 is connected to the output end of the gas tank 21 through a hose. A switch 13 for controlling the start and stop of the air compressor is installed on the top of the protective shell 11, and a handle 14 located above the protective shell 11 is installed on the bottom plate 1.

[0036] refer to Figures 1 to 3 The power supply device 4 includes a plurality of battery packs 41 , and the plurality of battery packs 41 are used to provide electrical energy for the operation of the air compressor.

[0037] When the air compressor is working, the air compressor is started by pressing the switch 13, and the battery pack 41 provides power to the air compressor, so that the motor 33 rotates. The output end of the motor 33 drives the piston to move back and forth in the cylinder 32 through the crankshaft connecting rod. The air will enter the cylinder 32 after being filtered through the silencer filter. The air is then compressed by the limiting effect of the one-way valve in the cylinder 32 and output to the gas tank 21 for storage for use.

[0038] refer to Figures 3 to 9 , and also includes an anti-vibration component 5, which is arranged between the base plate 1 and the air storage device 2, and includes a plurality of vibration-damping cylinders 51 fixedly connected to the top of the base plate 1, each of which is slidably connected to a first piston 52, and each of which is fixedly connected to a piston rod 53 on a side away from the base plate 1, for reducing vibration of the air compression device 3 when the air compressor is working.

[0039] refer to Figures 3 to 9 A buffer cylinder 54 is fixedly connected to the top of the base plate 1, and the interior of the buffer cylinder 54 is divided into sliding chambers 56 of the same number as the damping cylinder 51 by a partition plate 55. A piston plate 57 is slidably connected to the interior of each sliding chamber 56. A first throttling hole 58 is opened at the lower portion of each damping cylinder 51, and each first throttling hole 58 is communicated with the interior of the corresponding damping cylinder 51. A second throttling hole 59 of the same number and corresponding position as the sliding chamber 56 is opened at the lower portion of the buffer cylinder 54, and each second throttling hole 59 is communicated with the interior of the corresponding sliding chamber 56. Each first throttling hole 58 is connected to the corresponding second throttling hole 59 through an oil pipe 510, and the interior of each damping cylinder 51 is filled with hydraulic oil on the side of the corresponding first piston 52 away from the corresponding piston rod 53.

[0040] During actual use, when the air compressor is working to compress the air of the air compression device 3, the vibration of the air compression device 3 during operation will be transmitted to the multiple piston rods 53 through the mounting frame 31, which will cause the multiple piston rods 53 to drive the corresponding first pistons 52 to move in the corresponding damping cylinder 51. During the movement of the multiple first pistons 52 in the corresponding damping cylinder 51, the hydraulic oil in the corresponding damping cylinder 51 will be squeezed into the corresponding sliding cavity 56 through the first throttle hole 58, the oil pipe 510 and the second throttle hole 59, and the piston plate 57 in the corresponding sliding cavity 56 will be pushed to move. During the movement, the multiple piston plates 57 will compress the air in the buffer cylinder 54. At this time, the air in the buffer cylinder 54 can provide buffering and vibration reduction for the air compression device 3.

[0041] When the compressed air in the buffer cylinder 54 pushes back the multiple piston plates 57 and squeezes the hydraulic oil in the corresponding sliding chamber 56 back into the multiple shock-absorbing cylinders 51, the first throttle hole 58 and the second throttle hole 59 can throttle the hydraulic oil to avoid rapid reflux of the hydraulic oil and prevent the first piston 52 and the piston rod 53 from rebounding quickly. The rebound speed of the first piston 52 and the piston rod 53 can be adjusted synchronously by adjusting the size of the first throttle hole 58 and the second throttle hole 59, which can prevent the rebound force after buffering from generating an impact force in the opposite direction on the air compressor and avoid damage to the parts of the air compressor, thereby improving the vibration reduction effect and increasing the service life of the air compressor.

[0042] Embodiment 2. During actual use, since the main source of vibration is the unbalanced force and inertial force generated when the air compression device 3 is working, and the force transmitted to the anti-vibration component 5 by the air compression device 3 is unbalanced, this may cause uneven force on the multiple piston rods 53, resulting in different extended heights of the multiple piston rods 53, causing the air compression device 3 to tilt, increase vibration and impact force, lead to instability and noise, and may even cause failure and damage. Therefore, this embodiment improves the device described in the above embodiment.

[0043] refer to Figures 7 to 9 A connecting piece 511 is provided inside the buffer cylinder 54 , and the bottom of the connecting piece 511 is fixedly connected to the top of each piston plate 57 . When one of the piston plates 57 moves, the connecting piece 511 can drive the other piston plates 57 to move synchronously.

[0044] During actual use, when the unbalanced force generated by the operation of the air compression device 3 is transmitted to the anti-vibration component 5 so that the multiple piston rods 53 extend to different heights, the multiple piston rods 53 with different heights will squeeze the hydraulic oil of different volumes in the corresponding shock absorber cylinder 51 into the corresponding sliding cavity 56 through the corresponding first piston 52. Since the multiple piston plates 57 are connected by the connecting piece 511, the multiple piston plates 57 will move synchronously under the action of the connecting piece 511. When the multiple piston plates 57 move synchronously, the piston plate 57 corresponding to the piston rod 53 in the lowest position will drive the remaining piston plates 57 to draw the volumes of hydraulic oil in the multiple sliding cavities 56 to balance, so that the heights of the multiple piston rods 53 are the same, thereby preventing the air compression device 3 from tilting.

[0045] To sum up, through the setting of the connecting member 511, the multiple piston plates 57 will move synchronously under the action of the connecting member 511. When the multiple piston plates 57 are moving synchronously, the piston plate 57 corresponding to the piston rod 53 at the lowest position will drive the remaining piston plates 57 to draw the hydraulic oil in the volume of the multiple sliding chambers 56 to a balance, so that the heights of the multiple piston rods 53 are the same, avoiding the air compression device 3 from tilting, further reducing vibration and impact force increase, improving the stability of the air compressor during operation, and further improving the service life of the air compressor.

[0046] Embodiment 3. In actual use, when the air compression device 3 operates at high power and speed, the vibration frequency generated will be higher. Since the amount of gas in the buffer cylinder 54 is constant, the buffering effect cannot be automatically adjusted according to the vibration frequency of the air compression device 3. It can only provide effective buffering within a certain range, and the shock absorption effect is reduced. Therefore, this embodiment improves the device described in the above embodiment.

[0047] refer to Figure 4 , Figure 7 and Fig.10 A heat-conducting ring 512 is fixedly sleeved on the outer peripheral side of the cylinder 32, and an air storage chamber 513 is opened inside the heat-conducting ring 512. The air storage chamber 513 is connected to the interior of the buffer cylinder 54 through a pipeline. The air storage chamber 513 is filled with heat-expanding gas. A second piston 514 is slidably connected to the interior of the buffer cylinder 54, and the space between the second piston 514 and the multiple piston plates 57 is filled with gas for buffering.

[0048] When the thermally expanded gas in the gas storage chamber 513 enters the buffer cylinder 54 , it can push the second piston 514 to move, thereby compressing the gas between the second piston 514 and the plurality of piston plates 57 .

[0049] During actual use, when the air compression device 3 is working at high power and speed, the cooling fan 34 cannot completely reduce the temperature on the cylinder 32. The temperature on the cylinder 32 will gradually increase, and the temperature will be transferred to the heat conductive ring 512, causing the hot expansion gas in the air storage chamber 513 to expand. The expanded hot expansion gas will be transmitted to the buffer cylinder 54 through the pipeline, and push the second piston 514 to move, compressing the gas between the second piston 514 and the multiple piston plates 57, so that the moving distance of the multiple piston plates 57 in the corresponding sliding chamber 56 is reduced.

[0050] When the air compression device 3 is working with high power, the temperature on the cylinder 32 will be higher, more heat expansion gas will enter the buffer cylinder 54, and the degree of gas compression between the second piston 514 and the multiple piston plates 57 will be higher. The speed at which the multiple piston plates 57 push back the hydraulic oil will be faster, so that the first piston 52 drives the piston rod 53 to rebound faster, thereby making the anti-vibration component 5 respond faster, so that it can automatically adjust the buffering effect to adapt to the working state of the air compression device 3, improve the vibration reduction effect, and make the air compression device 3 more stable when working, thereby further improving the reliability and service life of the air compressor.

[0051] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibration-resistant air compressor, comprising a base plate (1) and an air storage device (2), an air compression device (3) and a power supply device (4) arranged above the base plate (1), characterized in that: Also includes: An anti-vibration assembly (5) comprises a plurality of vibration damping cylinders (51) fixedly connected to the top of the base plate (1), each vibration damping cylinder (51) being slidably connected to a first piston (52) inside, and each first piston (52) being fixedly connected to a piston rod (53) on a side away from the base plate (1); a buffer cylinder (54) being fixedly connected to the top of the base plate (1), the interior of the buffer cylinder (54) being divided into sliding chambers (56) of the same number as the vibration damping cylinder (51) by a partition (55), and each sliding chamber (56) being slidably connected to a piston plate (57); A first throttling hole (58) is provided at the bottom of each of the damping cylinders (51), and each of the first throttling holes (58) is communicated with the interior of the corresponding damping cylinder (51). A second throttling hole (59) having the same number as and corresponding positions to the sliding cavity (56) is provided at the bottom of the buffer cylinder (54), and each of the second throttling holes (59) is communicated with the interior of the corresponding sliding cavity (56). Each of the first throttling holes (58) is communicated with the corresponding second throttling hole (59) via an oil pipe (510).

2. The vibration-resistant air compressor according to claim 1, characterized in that: The interior of each damping cylinder (51) is filled with hydraulic oil on the side of the corresponding first piston (52) away from the corresponding piston rod (53).

3. The vibration-resistant air compressor according to claim 2, characterized in that: A connecting piece (511) is provided inside the buffer cylinder (54), and the bottom of the connecting piece (511) is fixedly connected to the top of each piston plate (57) respectively. When one of the piston plates (57) moves, the connecting piece (511) can drive the other piston plates (57) to move synchronously.

4. The vibration-resistant air compressor according to claim 3, characterized in that: The air compression device (3) comprises a mounting frame (31), one end of each piston rod (53) away from the first piston (52) is fixedly connected to the bottom of the mounting frame (31), and a cylinder (32) is mounted on the mounting frame (31).

5. The vibration-resistant air compressor according to claim 4, characterized in that: A heat-conducting ring (512) is provided on the outer peripheral fixed sleeve of the cylinder (32), and a gas storage chamber (513) is provided inside the heat-conducting ring (512). The gas storage chamber (513) is connected to the inside of the buffer cylinder (54) through a pipeline, and the gas storage chamber (513) is filled with heat-expanding gas. A second piston (514) is slidably connected to the inside of the buffer cylinder (54), and a gas for buffering is filled between the second piston (514) and the plurality of piston plates (57).

6. The vibration-resistant air compressor according to claim 5, characterized in that: When the thermally expanded gas in the gas storage chamber (513) enters the interior of the buffer cylinder (54), it can push the second piston (514) to move, thereby compressing the gas between the second piston (514) and the plurality of piston plates (57).

7. The vibration-resistant air compressor according to claim 6, characterized in that: A motor (33) is mounted on the mounting frame (31); one end of the output end of the motor (33) can drive a piston to reciprocate in the cylinder (32) via a crankshaft connecting rod, thereby sucking in external gas and compressing and outputting it to the gas storage device (2) for storage; and a cooling fan (34) is mounted on the other end of the output end of the motor (33) for dissipating heat when the air compressor is working.

8. The vibration-resistant air compressor according to claim 7, characterized in that: The gas storage device (2) comprises a gas tank (21), wherein the gas tank (21) is mounted on the top of the base plate (1), and the gas tank (21) is connected to the gas output end of the air compression device (3) and is used to store the air compressed by the air compression device (3).

9. The vibration-resistant air compressor according to claim 8, characterized in that: A protective shell (11) is mounted on the bottom plate (1), a pressure regulating valve assembly (12) is mounted on the protective shell (11), an input end of the pressure regulating valve assembly (12) is connected to an output end of a gas tank (21) via a hose, a switch (13) for controlling the start and stop of an air compressor is mounted on the top of the protective shell (11), and a handle (14) located above the protective shell (11) is mounted on the bottom plate (1).

10. The vibration-resistant air compressor according to claim 8, characterized in that: The power supply device (4) comprises a plurality of battery packs (41), and the plurality of battery packs (41) are used to provide electrical energy for the operation of the air compressor.

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