Magnetic suspension fan

Abstract

The utility model provides a magnetic suspension fan, which relates to the technical field of air blowers and comprises a magnetic suspension air blower. An impeller is rotationally connected to the front end of the magnetic suspension air blower, a connecting wrapping pipe is fixedly connected to the front end of the magnetic suspension air blower, the impeller is located in the middle of the interior of the connecting wrapping pipe, and an adjusting cylinder is fixedly connected to the front end of the connecting wrapping pipe. And the gear ring piece drives the four fan-shaped plates to synchronously move inwards through meshing transmission of arc teeth at the rear ends of the four fan-shaped plates and spiral flutes at the front end of the gear ring piece till every two adjacent fan-shaped plates are attached to jointly form a circular shape to be closed at the front end of the adjusting cylinder, and the situation that dust falls and accumulates on the impeller is avoided. The problems that when an existing magnetic suspension draught fan is not used, dust is prone to being accumulated at the positions of impeller blades of the magnetic suspension draught fan, the shaft rotation load of the magnetic suspension draught fan is increased, and on the other hand, dust accumulated at the position of a rotating shaft easily interferes with rotation of the impeller blades are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of blowers, and more specifically, relates to a magnetic suspension blower. Background Art

[0002] The magnetic levitation blower adopts contactless, mechanical friction-free magnetic levitation bearings and high-speed, high-power permanent magnet synchronous motors to directly drive high-efficiency fluid impellers, overcoming the shortcomings of traditional blowers and air levitation blowers. It has the advantages of high efficiency, low noise, few failures, and no need for lubrication systems. Even if the magnetic levitation bearing fails, the protective bearing in the system can still safely shut down the high-speed rotating rotor without causing serious damage to the equipment.

[0003] Application No. CN201921825871.1 This utility model discloses a magnetically suspended integrated fan, comprising a housing, a mounting barrel disposed within the housing, a rotating motor disposed within the mounting barrel, the rotating motor comprising a rotating shaft, a primary magnetic ring disposed on the rotating shaft, an auxiliary magnetic ring disposed within the mounting barrel for mutually repelling the primary magnetic ring, an impeller disposed on the rotating shaft, the impeller comprising a rotating member and blades, the rotating member being connected to the rotating shaft, a gap being defined between the mounting barrel and the housing, and the blades covering the gap. The auxiliary magnetic ring disposed within the mounting barrel exerts a repulsive force on the primary magnetic ring, thereby forming a magnetically suspended structure and reducing friction between the rotating shaft and the entire structure, thereby enabling the fan to withstand higher speeds. Furthermore, the rotating motor itself generates significant heat at dry speeds. The gap formed between the mounting barrel and the housing allows wind to pass through the gap under the action of negative pressure when the fan rotates, thereby removing heat from the rotating motor itself.

[0004] Based on the search of the above patents and the understanding of the application of an existing magnetic levitation fan: when the magnetic levitation fan is not in use, dust is likely to accumulate at the impeller blade position of the magnetic levitation fan, increasing the shaft rotation load of the magnetic levitation fan, and the dust accumulation at the shaft position is likely to interfere with the rotation of the impeller blades. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a magnetic levitation fan to solve the problem that when the existing magnetic levitation fan is not in use, dust is easily accumulated at the impeller blade position of the magnetic levitation fan, increasing the shaft rotation load of the magnetic levitation fan. On the other hand, dust accumulation at the shaft position easily interferes with the rotation of the impeller blades.

[0006] The purpose and effect of the magnetic levitation fan of the utility model are achieved by the following specific technical means:

[0007] A magnetic levitation fan comprises a magnetic levitation blower; the front end position of the magnetic levitation blower is rotatably connected to an impeller, the front end position of the magnetic levitation blower is fixedly connected to a connecting tube, the impeller is located in the middle position inside the connecting tube, the front end position of the connecting tube is fixedly connected to an adjusting cylinder, the internal position of the adjusting cylinder is rotatably connected to a gear ring, the front end position of the gear ring is provided with spiral grooves, the interior of the adjusting cylinder is a through-design, and four slide grooves are provided at the front end position of the adjusting cylinder, the four slide grooves of the adjusting cylinder are distributed in a cross shape, and a sliding frame is slidably connected to each of the four slide grooves of the adjusting cylinder, the four sliding frames are distributed in a cross shape, and the front end position of each sliding frame is fixedly connected to a fan-shaped fan plate, and each adjacent two fan plates form a circular shape when fitted together and are located in the front position of the adjusting cylinder.

[0008] According to one embodiment of the present invention, the top of the adjusting cylinder is fixedly connected to a motor, a notch is provided at the front end of the top of the adjusting cylinder, and the notch of the adjusting cylinder is located directly above the gear ring.

[0009] According to an embodiment of the present invention, the front end rotating shaft of the motor is fixedly connected to a gear member, the bottom of the gear member is located in the notch of the adjustment cylinder, and the gear member is meshed with the gear ring member for transmission.

[0010] According to one embodiment of the present invention, arc teeth are provided at the rear end of each sector plate, and the arc teeth at the rear ends of the four sector plates are engaged with the spiral grooves at the front end of the gear ring.

[0011] According to an embodiment of the present invention, a mounting bracket is fixedly connected to the left and right sides of the magnetic levitation blower respectively. The two mounting brackets are symmetrically designed, and a penetrating strip groove is provided at the top of the two mounting brackets.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] When the magnetic levitation blower is not in use, the starting motor drives the gear part to reverse, and the gear part and the gear ring part are engaged through the meshing transmission. The gear ring part drives the four sector plates to move inward synchronously through the meshing transmission of the arc teeth at the rear end of the four sector plates and the spiral grooves at the front end of the gear ring part, until every two adjacent sector plates fit together to form a circular shape and are closed at the front end of the adjusting cylinder, so as to prevent dust from falling on the impeller and avoid the shaft load of the magnetic levitation blower and the dust accumulation at the shaft position that easily interferes with the rotation of the impeller blades.

[0014] When the magnetic levitation blower needs to be installed, the bolts are passed through the strip grooves of the mounting frame to fix the magnetic levitation blower to the mounting position. Combined with the design of the strip grooves of the mounting frame, the selection and limit installation of the bolts and the mounting position can be ensured in a wider range. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side structural schematic diagram of the magnetic levitation fan of the present invention in a closed state.

[0016] Figure 2 This is a schematic diagram of the main structure of the magnetic levitation fan of the present invention in use state.

[0017] Figure 3 It is a left-side structural schematic diagram of the magnetic levitation fan of the present invention in use state.

[0018] Figure 4 It is a side structural schematic diagram of the magnetic levitation fan of the present invention in use state.

[0019] Figure 5 It is a schematic diagram of the half-section side view of the overall structure of the regulating cylinder of the present invention.

[0020] In the figure, the corresponding relationship between component names and drawing numbers is as follows:

[0021] 1. Magnetic levitation blower; 101. Mounting frame; 102. Connecting pipe; 103. Impeller; 2. Adjusting cylinder; 201. Gear ring; 202. Motor; 203. Gear; 204. Sliding frame; 205. Sector plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described 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.

[0023] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by ordinary technicians in the field to which the present invention belongs. Similar words such as "one", "an" or "the" used in the specification and claims of the present utility model patent application do not indicate quantity limitations, but rather indicate the existence of at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0024] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0025] Example 1:

[0026] As attached Figure 1 To the attached Figure 5 As shown:

[0027] The utility model provides a magnetic levitation fan, including a magnetic levitation blower 1; the front end position of the magnetic levitation blower 1 is rotatably connected to an impeller 103, the front end position of the magnetic levitation blower 1 is fixedly connected to a connecting tube 102, the impeller 103 is located in the middle position inside the connecting tube 102, the front end position of the connecting tube 102 is fixedly connected to an adjusting cylinder 2, the internal position of the adjusting cylinder 2 is rotatably connected to a gear ring 201, the front end position of the gear ring 201 is provided with a spiral groove, the interior of the adjusting cylinder 2 is a through-design, and the front end position of the adjusting cylinder 2 is provided with four slide grooves, the four slide grooves of the adjusting cylinder 2 are distributed in a cross shape, and a sliding frame 204 is slidably connected in the four slide grooves of the adjusting cylinder 2, respectively, and the four sliding frames 204 are distributed in a cross shape, and the front end position of each sliding frame 204 is fixedly connected to a fan-shaped fan plate 205, and each adjacent two fan plates 205 form a circular shape when fitted together and are located in the front position of the adjusting cylinder 2.

[0028] Among them, the top position of the adjusting cylinder 2 is fixedly connected to the motor 202, and a notch is provided at the front end position of the top of the adjusting cylinder 2, and the notch position of the adjusting cylinder 2 is located directly above the gear ring 201. The front end rotating shaft of the motor 202 is fixedly connected to the gear part 203, and the bottom position of the gear part 203 is located in the notch of the adjusting cylinder 2, and the gear part 203 is meshed with the gear ring 201 for transmission. The rear end position of each fan-shaped plate 205 is provided with arc teeth, and the arc teeth at the rear ends of the four fan-shaped plates 205 are meshed with the spiral groove position at the front end position of the gear ring 201. A mounting bracket 101 is fixedly connected to the left and right sides of the magnetic levitation blower 1 respectively. The two mounting brackets 101 are symmetrically designed, and a through strip groove is provided at the top position of the two mounting brackets 101.

[0029] When using:

[0030] When the magnetic levitation blower 1 needs to be installed, the bolts are passed through the strip groove position of the mounting frame 101 to fix the magnetic levitation blower 1 to the installation position. Combined with the design of the strip groove of the mounting frame 101, the selection and limit installation of the bolts and the installation position can be guaranteed in a larger range.

[0031] When the magnetic levitation blower 1 is operating normally, the starting motor 202 drives the gear part 203 to rotate. Through the meshing transmission between the gear part 203 and the gear ring part 201, the gear ring part 201 drives the four sector plates 205 to move outward synchronously through the meshing transmission of the arc teeth at the rear end of the four sector plates 205 and the spiral grooves at the front end of the gear ring part 201. At this time, the four sector plates 205 will not block the front end position of the adjusting cylinder 2, and the impeller 103 of the magnetic levitation blower 1 is used normally.

[0032] When the magnetic levitation blower 1 is not in use, the starting motor 202 drives the gear part 203 to reverse, and the gear part 203 is meshed with the gear ring part 201. The gear ring part 201 drives the four sector plates 205 to move inward synchronously through the arc teeth at the rear end of the four sector plates 205 and the spiral grooves at the front end of the gear ring part 201, until every two adjacent sector plates 205 fit together to form a circular shape and are closed at the front end of the regulating cylinder 2, so as to prevent dust from falling and accumulating on the impeller 103.

[0033] Although the present application has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes may be made without departing from the concept and scope of the present application as defined in the appended claims. Although this specification contains many specific implementation details, these should not be interpreted as limitations on the scope of protection claimed in this application, but rather as descriptions of features specific to specific embodiments. The scope of this application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. A magnetic levitation fan, characterized in that: The invention comprises a magnetic levitation blower (1); the front end of the magnetic levitation blower (1) is rotatably connected to an impeller (103); the front end of the magnetic levitation blower (1) is fixedly connected to a connecting tube (102); the impeller (103) is located in the middle of the connecting tube (102); the front end of the connecting tube (102) is fixedly connected to an adjusting cylinder (2); the interior of the adjusting cylinder (2) is rotatably connected to a gear ring (201); the front end of the gear ring (201) is provided with spiral grooves; the adjusting cylinder ( 2) The interior is designed to be through-through, and four slide grooves are provided at the front end of the adjustment cylinder (2). The four slide grooves of the adjustment cylinder (2) are distributed in a cross shape. A sliding frame (204) is slidably connected in each of the four slide grooves of the adjustment cylinder (2). The four sliding frames (204) are distributed in a cross shape. A fan-shaped fan plate (205) is fixedly connected to the front end of each sliding frame (204). When two adjacent fan plates (205) are fitted together, they form a circular shape and are located in the front of the adjustment cylinder (2).

2. A magnetic levitation fan according to claim 1, characterized in that: The top of the adjusting cylinder (2) is fixedly connected to a motor (202), and a notch is provided at the front end of the top of the adjusting cylinder (2), and the notch of the adjusting cylinder (2) is located directly above the gear ring (201).

3. A magnetic levitation fan according to claim 2, characterized in that: The front end rotating shaft of the motor (202) is fixedly connected to a gear member (203), the bottom of the gear member (203) is located in the notch of the adjustment cylinder (2), and the gear member (203) is meshed with the gear ring member (201) for transmission.

4. A magnetic levitation fan according to claim 1, characterized in that: Each of the sector plates (205) is provided with arc teeth at the rear end, and the arc teeth at the rear ends of the four sector plates (205) are all engaged with the spiral grooves at the front end of the gear ring (201).

5. The magnetic levitation fan according to claim 1, characterized in that: A mounting frame (101) is fixedly connected to the left and right sides of the magnetic levitation blower (1), respectively. The two mounting frames (101) are symmetrically designed, and a through-strip groove is provided at the top of each of the two mounting frames (101).

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