Fan frequency modulation and vibration absorption device

Abstract

The utility model discloses a fan frequency modulation vibration-proof device, and particularly relates to the technical field of fan damping, the fan frequency modulation vibration-proof device comprises a fixed cylinder, the front side of the fixed cylinder is fixedly connected with a first connecting disc, the front side of the first connecting disc is movably connected with a second connecting disc, and the second connecting disc is internally and movably connected with a rotation buffer mechanism; wherein the rotating buffering mechanism comprises a rotating cylinder, a plurality of rotating shafts are fixedly connected to the interior of the rotating cylinder, supporting arms are movably connected to the outer sides of the rotating shafts, anti-skid clamping strips are fixedly connected to the tops of the supporting arms, and first movable seats are fixedly connected to one sides of the supporting arms. The rotating buffering mechanism is arranged, the supporting arms and the anti-skid clamping strips drive the rotating drum to rotate when the ratchet wheel rotates anticlockwise, and after frequency modulation and speed reduction of the motor are conducted, the supporting arms can slip relative to the ratchet wheel under the inertia effect of the fan blades, so that the fan blades drive the rotating drum to reduce the opposite impact force with the ratchet wheel; vibration generated by frequency modulation between the motor and the fan blades is reduced, and the service life of the fan is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fan vibration reduction, and more specifically, to a fan frequency modulation vibration-proof device. Background Art

[0002] The switched reluctance motor has the advantages of simple structure, reliable performance, small starting current, large starting torque, wide speed regulation range and high efficiency. However, the operating vibration of some user equipment is too large, which has excessive impact on the motor and fan, and can easily cause damage to the motor and fan.

[0003] The existing technology mainly reduces the vibration of the equipment by adopting structures such as vibration-damping elastic pads or vibration-damping springs. This method can reduce some vibrations, but the existing structure for fixing and installing vibration-damping elastic pads or vibration-damping springs is too simple. Generally, they are fixed and connected by bolts and nuts. After working for a long time, the bolts and nuts will become loose, and the vibration reduction effect will be unstable.

[0004] After searching, the Chinese patent with publication number CN207069788U discloses an axial flow fan vibration reduction device. This utility model can achieve the technical purpose of reducing vibration, avoiding excessive vibration, achieving firm connection between components and maintaining stable vibration reduction effect.

[0005] However, when the above-mentioned shock absorbing device is actually used, during the frequency modulation of the fan, the speed of the motor and the fan may not match, and the connection between the motor and the fan may be subjected to greater pressure, which may cause the connection between the motor and the fan to be unstable. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a fan frequency modulation and vibration prevention device to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The fan frequency modulation vibration-proof device comprises a fixed cylinder, a first connection disk is fixedly connected to the front side of the fixed cylinder, a second connection disk is movably connected to the front side of the first connection disk, and a rotation buffer mechanism is movably connected inside the second connection disk;

[0009] The rotation buffer mechanism includes a rotating drum, a plurality of rotating shafts are fixedly connected inside the rotating drum, a plurality of rotating shafts are movably connected to support arms on the outside, a plurality of support arms are fixedly connected to anti-slip strips on the top, a plurality of support arms are fixedly connected to a first movable seat on one side, a plurality of first movable seats are fixedly connected to telescopic rods on the bottom, a plurality of telescopic rods are movably connected to first springs on the outside, a plurality of telescopic rods are fixedly connected to second movable seats on the bottom, a rotating roller is fixedly connected to the rear side of the rotating drum, and three fan blades are fixedly connected to the outside of the rotating roller.

[0010] By adopting the above technical solution: the first connecting disk is fixedly connected to the front side of the fixed cylinder, the second connecting disk is movably connected to the front side of the first connecting disk, the rotating cylinder is movably connected inside the second connecting disk, multiple rotating shafts are fixedly connected inside the rotating cylinder, multiple supporting arms are movably connected outside the multiple rotating shafts, multiple anti-slip strips are fixedly connected at the tops of the multiple supporting arms, multiple first movable seats are fixedly connected on one side of the multiple supporting arms, multiple telescopic rods are fixedly connected at the bottoms of the multiple first movable seats, multiple first springs are movably connected outside the multiple telescopic rods, multiple second movable seats are fixedly connected at the bottoms of the multiple telescopic rods, the roller is fixedly connected at the rear side of the rotating cylinder, and the three fan blades are fixedly connected outside the roller.

[0011] As a further description of the above technical solution:

[0012] A protective baffle is fixedly connected to the front side of the second connection plate, and a protective net is fixedly connected inside the protective baffle.

[0013] By adopting the above technical solution: the protection partition is fixedly connected at the front side of the second connection plate, and the protection net is fixedly connected inside the protection partition.

[0014] As a further description of the above technical solution:

[0015] A plurality of nuts are installed on the rear side of the first connection plate, and a plurality of sockets are arranged on the front side of the first connection plate.

[0016] By adopting the above technical solution: a plurality of nuts are installed on the rear side of the first connecting disk, and a plurality of jacks are arranged on the front side of the first connecting disk.

[0017] As a further description of the above technical solution:

[0018] A plurality of protective pads are fixedly connected inside the first connection plate, and a plurality of guide rods are fixedly connected to the front side of the first connection plate.

[0019] By adopting the above technical solution: a plurality of pads are fixedly connected inside the first connecting plate, and a plurality of guide rods are fixedly connected at the front side inside the first connecting plate.

[0020] As a further description of the above technical solution:

[0021] A motor is fixedly connected inside the fixing cylinder, and a ratchet is coaxially connected to an output end of the motor.

[0022] By adopting the above technical solution: the motor is fixedly connected inside the fixing cylinder, and the ratchet is coaxially connected to the output end of the motor.

[0023] As a further description of the above technical solution:

[0024] A plurality of bolts are movably connected to the outer side of the second connection plate, a protective tube is fixedly connected to the inside of the second connection plate, and a plurality of plug-in blocks are fixedly connected to the front side of the second connection plate.

[0025] By adopting the above technical solution: a plurality of bolts are movably connected on the outside of the second connecting plate, a protective tube is fixedly connected inside the second connecting plate, and a plurality of inserts are fixedly connected on the front side of the second connecting plate.

[0026] As a further description of the above technical solution:

[0027] A second spring is fixedly connected inside the plurality of insert blocks, and a gasket is fixedly connected at the front end of the plurality of second springs.

[0028] By adopting the above technical solution: a plurality of second springs are fixedly connected inside a plurality of insert blocks, and a plurality of gaskets are fixedly connected at the front ends of the plurality of second springs.

[0029] Technical effects and advantages of the utility model:

[0030] 1. By setting a rotation buffer mechanism, compared with the prior art, when the ratchet rotates counterclockwise, the multiple support arms and the anti-slip clips drive the drum to rotate. When the motor is frequency modulated and decelerated, the multiple support arms will slip with the ratchet under the inertia of the fan blades, so that the fan blades drive the drum to reduce the impact force on the ratchet, reduce the vibration caused by the frequency modulation between the motor and the fan blades, and improve the service life of the fan;

[0031] 2. By arranging nuts, sockets, pads, guide rods, bolts, plugs, second springs and gaskets, compared with the prior art, multiple protective baffles are inserted into the interior of the multiple sockets, the outer sides of the multiple plugs are fitted with the multiple pads, and the multiple guide rods are fitted with the multiple gaskets inside the plugs, so that the connection between the first connecting plate and the second connecting plate is more stable, thereby improving the stability and safety of the fan during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0033] Figure 2 This is a schematic diagram of the first connecting disk structure of the utility model.

[0034] Figure 3 It is a schematic diagram of the ratchet structure of the utility model.

[0035] Figure 4 This is a schematic diagram of the structure of the second connecting disk of the utility model.

[0036] Figure 5 It is a schematic diagram of the internal structure of the rotating drum of the utility model.

[0037] Figure 6 For the utility model Figure 4 Schematic diagram of the structure of B.

[0038] Figure 7 For the utility model Figure 5 Schematic diagram of the structure of A.

[0039] The accompanying drawings are marked as follows: 1. fixed cylinder; 2. first connecting plate; 3. second connecting plate; 4. rotating cylinder; 5. rotating shaft; 6. supporting arm; 7. anti-slip clip; 8. first movable seat; 9. telescopic rod; 10. first spring; 11. second movable seat; 12. rotating roller; 13. fan blade; 14. protective partition; 15. protective net; 16. nut; 17. socket; 18. protective pad; 19. guide rod; 20. motor; 21. ratchet; 22. bolt; 23. protective cylinder; 24. plug block; 25. second spring; 26. gasket. DETAILED DESCRIPTION

[0040] 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.

[0041] The embodiment of the present application discloses a fan frequency modulation vibration-proof device, specifically comprising a fixed cylinder 1, a first connection disk 2 is fixedly connected to the front side of the fixed cylinder 1, a second connection disk 3 is movably connected to the front side of the first connection disk 2, and a rotation buffer mechanism is movably connected inside the second connection disk 3;

[0042] The rotation buffer mechanism includes a rotating drum 4, wherein a plurality of rotating shafts 5 are fixedly connected inside the rotating drum 4, and support arms 6 are movably connected to the outer sides of the plurality of rotating shafts 5, and anti-skid strips 7 are fixedly connected to the tops of the plurality of supporting arms 6, and a first movable seat 8 is fixedly connected to one side of the plurality of supporting arms 6, and a telescopic rod 9 is fixedly connected to the bottoms of the plurality of first movable seats 8, and a first spring 10 is movably connected to the outer sides of the plurality of telescopic rods 9, and a second movable seat 11 is fixedly connected to the bottoms of the plurality of telescopic rods 9, and a rotating roller 12 is fixedly connected to the rear side of the rotating drum 4, and three fan blades 13 are fixedly connected to the outer side of the rotating roller 12, and the plurality of supporting arms 6 and the anti-skid strips 7 can be effectively and stably connected when driving the rotating roller 12 and the fan blades 13 to rotate clockwise, and when the motor 20 is frequency modulated, the plurality of supporting arms 6 and the anti-skid strips 7 can slide out from the inside of the ratchet 21 through the rotating shaft 5, so as to reduce the relative force generated between the rotating drum 4 and the ratchet 21, and reduce the vibration generated when the motor 20 is frequency modulated.

[0043] Reference Figure 1As shown, specifically, a protective baffle 14 is fixedly connected to the front side of the second connecting plate 3 , and a protective net 15 is fixedly connected inside the protective baffle 14 to protect the rotation of the fan blades 13 .

[0044] Reference Figure 2 As shown, specifically, a plurality of nuts 16 are installed on the rear side of the first connecting disk 2, a plurality of sockets 17 are provided on the front side of the first connecting disk 2, a plurality of protective pads 18 are fixedly connected to the inside of the first connecting disk 2, and a plurality of guide rods 19 are fixedly connected to the front side of the inside of the first connecting disk 2, so that the first connecting disk 2 can remain stable during the connection process.

[0045] Reference Figure 3 As shown, specifically, a motor 20 is fixedly connected inside the fixed cylinder 1 , and a ratchet 21 is coaxially connected to the output end of the motor 20 to transmit the power to the rotating cylinder 4 .

[0046] Reference Figure 4 As shown, specifically, a plurality of bolts 22 are movably connected to the outer side of the second connecting disk 3, a protective cylinder 23 is fixedly connected to the inside of the second connecting disk 3, and a plurality of plug-in blocks 24 are fixedly connected to the front side of the second connecting disk 3, so that the rotating drum 4 can stably rotate inside the protective cylinder 23.

[0047] Reference Figure 6 As shown, specifically, the second springs 25 are fixedly connected inside the plurality of plug blocks 24 , and the gaskets 26 are fixedly connected to the front ends of the plurality of second springs 25 , so that the connection between the first connection plate 2 and the second connection plate 3 is more stable.

[0048] The working principle of the utility model is as follows: when connecting the motor with the fan, first, insert the multiple plug blocks 24 on the rear side of the second connecting disk 3 into the multiple plug holes 17 on the outside of the first connecting disk 2, and insert the multiple guide rods 19 into the corresponding plug blocks 24 respectively. The tops of the multiple guide rods 19 contact the corresponding gaskets 26, and the force generated by the connection between the second connecting disk 3 and the first connecting disk 2 is buffered by the multiple second springs 25. At the same time, the plug blocks 24 are wrapped by the multiple plug holes 17 to make the connection between the second connecting disk 3 and the first connecting disk 2 more stable and reduce the influence of vibration. Then, the multiple nuts 16 inside the first connecting disk 2 are rotatably connected through the multiple bolts 22 on the outside of the second connecting disk 3. Then, the ratchet 21 on the front side of the motor 20 inside the fixed cylinder 1 is inserted into the interior of the protective cylinder 23 and fits with the top ends of the multiple support arms 6 inside the rotating cylinder 4. Then, the motor 20 drives the ratchet 21 to rotate in the opposite direction. During the rotation, the ratchet 21 is rotated by the multiple support arms 6 and the protective The slide bar 7 drives the drum 4 to rotate stably inside the protective cylinder 23. The drum 4 drives the roller 12 and the fan blade 13 to rotate to generate wind force during the rotation. Then the wind is blown out through the protective partition 14 and the protective net 15. After the motor 20 is frequency-modulated, the speed of the ratchet 21 slows down. At the same time, the fan blade 13 drives the drum 4 to rotate rapidly through the roller 12 under the action of inertia. The rotation speed of the multiple support arms 6 is faster than that of the ratchet 21. The multiple support arms 6 rotate along the rotating shaft 5. , multiple support arms 6 compress the corresponding telescopic rods 9 and the first spring 10, so that the multiple support arms 6 avoid the opposite impact with the ratchet 21, so that the fan blades 13 can slowly decelerate until they match the rotation of the ratchet 21, and the multiple support arms 6 and the anti-slip strip 7 will be re-inserted into the inside of the ratchet 21, and then the motor 20 drives the ratchet 21 to transmit the multiple support arms 6, so that the speed of the fan blades 13 becomes matched with the rotation speed of the motor 20, completing the frequency modulation of the motor 20 and reducing the vibration of the fan.

[0049] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fan frequency modulation vibration-proof device, comprising a fixing cylinder (1), characterized in that: The front side of the fixed cylinder (1) is fixedly connected to a first connection disk (2), the front side of the first connection disk (2) is movably connected to a second connection disk (3), and the interior of the second connection disk (3) is movably connected to a rotation buffer mechanism; The rotating buffer mechanism comprises a rotating drum (4), wherein a plurality of rotating shafts (5) are fixedly connected inside the rotating drum (4), a plurality of rotating shafts (5) are movably connected to the outer sides of the plurality of rotating shafts (5), a plurality of anti-slip clips (7) are fixedly connected to the tops of the plurality of supporting arms (6), a plurality of first movable seats (8) are fixedly connected to one side of the plurality of supporting arms (6), a plurality of telescopic rods (9) are fixedly connected to the bottoms of the plurality of first movable seats (8), a plurality of first springs (10) are movably connected to the outer sides of the plurality of telescopic rods (9), a plurality of second movable seats (11) are fixedly connected to the bottoms of the plurality of telescopic rods (9), a rotating roller (12) is fixedly connected to the rear side of the rotating drum (4), and three fan blades (13) are fixedly connected to the outer sides of the rotating roller (12).

2. The fan frequency modulation and vibration-proof device according to claim 1 is characterized in that: A protective partition (14) is fixedly connected to the front side of the second connection plate (3), and a protective net (15) is fixedly connected inside the protective partition (14).

3. The fan frequency modulation and vibration-proof device according to claim 1 is characterized in that: A plurality of nuts (16) are installed on the rear side of the first connection plate (2), and a plurality of sockets (17) are arranged on the front side of the first connection plate (2).

4. The fan frequency modulation and vibration-proof device according to claim 1, characterized in that: A plurality of protective pads (18) are fixedly connected inside the first connection plate (2), and a plurality of guide rods (19) are fixedly connected to the front side of the first connection plate (2).

5. The fan frequency modulation and vibration-proof device according to claim 1 is characterized in that: A motor (20) is fixedly connected inside the fixed cylinder (1), and a ratchet (21) is coaxially connected to an output end of the motor (20).

6. The fan frequency modulation and vibration-proof device according to claim 1, characterized in that: A plurality of bolts (22) are movably connected to the outside of the second connection plate (3), a protective tube (23) is fixedly connected to the inside of the second connection plate (3), and a plurality of insert blocks (24) are fixedly connected to the front side of the second connection plate (3).

7. The fan frequency modulation and vibration-proof device according to claim 6, characterized in that: A second spring (25) is fixedly connected inside each of the plurality of insert blocks (24), and a gasket (26) is fixedly connected at the front end of each of the plurality of second springs (25).

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