Damping mechanism for air outlet pipeline in magnetic suspension high-speed centrifugal blower

Abstract

The utility model discloses an air outlet pipeline damping mechanism in a magnetic suspension high-speed centrifugal blower, which comprises a blower box body, a magnetic suspension high-speed centrifugal blower body is arranged in the blower box body, and the magnetic suspension high-speed centrifugal blower body is arranged on the inner side of the blower box body. An air inlet is formed in the surface of the upper end of the magnetic suspension high-speed centrifugal blower body and fixed to the surface of the inner side of the upper end of the blower box body, an air outlet pipe is arranged on the outer side of the magnetic suspension high-speed centrifugal blower body, a positioning convex opening is formed in the outer side of the blower box body, and a bent elastic piece is arranged on the surface of the inner side of the positioning convex opening. The bending elastic pieces are distributed and supported on the end face of the air outlet pipe in a circle, elastic supporting can be achieved, the variable-diameter positioning sleeve is arranged at the middle end of the air outlet pipe for hoisting, supporting and positioning, supporting is stable and firm, damping is facilitated, and using is stable.

Description

Technical Field

[0001] The utility model relates to the field of a shock absorbing mechanism for an air outlet duct in a magnetically suspended high-speed centrifugal blower, and more specifically to a shock absorbing mechanism for an air outlet duct in a magnetically suspended high-speed centrifugal blower. Background Art

[0002] The magnetic levitation centrifugal blower uses magnetic force to suspend the rotating shaft in the blower, and makes the rotating shaft drive the impeller to rotate, so as to realize the function of the blower. Since the magnetic levitation centrifugal blower is large in size and various components are needed to control various parameters of the blower, the blower needs to be installed in a protective blower box, and the components and the blower need to be connected and then fixed in the blower box;

[0003] In the prior art, when the blower is working in the fan box, the air outlet is relatively long, which causes vibration when the air is discharged, causing the air outlet to be disconnected due to long-term vibration. At the same time, the air flow inside the fan box is poor, causing the air inlet of the blower to be more laborious when inhaling air, resulting in insufficient air volume.

[0004] In its prior art patents, such as the authorization announcement number CN215566931U, a shock absorbing device for the air outlet duct of a magnetically suspended high-speed centrifugal blower is disclosed, comprising a fan housing, a blower body and a partition, wherein the partition is located inside the fan housing, the blower body is located between the partition and the inner wall of the fan housing, the input end of the blower body is provided with a blower air inlet, the output end of the blower body is provided with a blower air outlet, the blower air outlet simultaneously penetrates the partition and the inner wall of the fan housing, and the blower air outlet extends to the outside of the fan housing, the utility model is provided with a shock absorbing assembly and a connecting block, by sleeve the connecting block on the connection of the second fixing ring, and fixing the connecting block and the second fixing ring by fixing bolts, so that the shock absorbing assembly is fixed between the fan housing and the second fixing ring, so that when the blower air outlet vibrates, the damage caused by the vibration can be effectively reduced by the shock absorbing assembly, thereby extending the service life of the blower air outlet;

[0005] In the above-mentioned patent, a spring support is used to elastically support the air outlet pipe. The spring component has a small supporting force and a large elastic vibration. It not only fails to reduce shock when the air is discharged, but also increases the vibration. The air outlet pipe vibrates greatly, affecting the transmission airflow and the support is unstable. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a shock-absorbing mechanism for the air outlet duct of a magnetically suspended high-speed centrifugal blower. By adopting a circle of bent elastic sheets distributed and supported on the end face of the air outlet duct, elastic support can be performed. A variable-diameter positioning sleeve is arranged at the middle end of the air outlet duct for lifting support and positioning. The support is stable and firm, which is convenient for shock absorption and stable in use.

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A shock absorbing mechanism for an air outlet duct in a magnetically suspended high-speed centrifugal blower comprises a fan housing, wherein a magnetically suspended high-speed centrifugal blower body is arranged in the fan housing, the magnetically suspended high-speed centrifugal blower body is arranged on the inner side of the fan housing, an air inlet is arranged on the upper end surface of the magnetically suspended high-speed centrifugal blower body, the air inlet is fixed on the upper inner side surface of the fan housing, an air outlet pipe is arranged on the outer side of the magnetically suspended high-speed centrifugal blower body, a positioning protrusion is arranged on the outer side of the fan housing, a curved elastic sheet is arranged on the inner side surface of the positioning protrusion, the curved elastic sheet is supported on the outer surface of the air outlet pipe, and the A bolt is inserted into the inner surface of the upper end of the bent elastic sheet, and a convex shaft is arranged at the lower end of the bolt, and the convex shaft is inserted into the inner surface of the bent elastic sheet, and the outer surface of the convex shaft is connected to a first nut by a thread, and a reducing sleeve is sleeved on the outer surface of the outlet pipe, and a supporting hanger is arranged on the upper end surface of the reducing sleeve. By adopting a circle of the bent elastic sheet to support the end face of the outlet pipe, elastic support can be performed, and a reducing sleeve is arranged at the middle end of the outlet pipe for lifting and supporting and positioning. The support is stable and firm, which is convenient for shock absorption and stable in use.

[0009] Furthermore, the support hanger is inserted into the inner surface of the upper end of the fan casing, and the upper end surface of the support hanger is threadedly connected with a second nut.

[0010] Furthermore, the second nuts are respectively arranged on both sides of the upper end of the supporting suspension rod, and the second nuts are locked and fixed on the inner and outer end surfaces of the fan casing.

[0011] Furthermore, the curved elastic sheet is made of elastic steel sheet, the inner end of which is supported on the outer surface of the air outlet pipe, and eight groups of curved elastic sheets are evenly distributed on the inner surface of the positioning protrusion.

[0012] Furthermore, the left and right groups of the support hangers are distributed on the surface of the variable diameter positioning sleeve, and the support hangers are inserted into the insertion holes reserved at the upper end of the fan casing.

[0013] Furthermore, the air inlet is fixed on the inner surface of the upper end of the fan housing, and the air inlet is exposed to the outside.

[0014] Furthermore, the inner surface of the variable diameter positioning sleeve is covered with a rubber layer, which is tightly fitted on the outer surface of the air outlet pipe.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) By using a circle of bent elastic sheets to support the end face of the outlet pipe, elastic support can be provided. A variable diameter positioning sleeve is provided at the middle end of the outlet pipe for lifting support and positioning. The support is stable and firm, which is convenient for shock absorption and stable in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a side view of the distribution relationship between the curved elastic sheet and the air outlet pipe of the utility model;

[0019] Figure 3 This is a view of the connection between the bent elastic sheet, the bolt and the first nut of the utility model;

[0020] Figure 4 This is a distribution view of the variable diameter positioning sleeve and the supporting hanger of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1 fan housing, 2 magnetic suspension high-speed centrifugal blower body, 3 air inlet, 4 air outlet pipe, 5 positioning protrusion, 6 bending elastic sheet, 7 bolt, 8 convex shaft, 9 first nut, 10 variable diameter positioning sleeve, 11 supporting suspension rod, 12 second nut. 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] Example 1

[0025] See also Figure 1-4A shock absorbing mechanism for an air outlet duct in a magnetically suspended high-speed centrifugal blower comprises a fan housing 1, wherein a magnetically suspended high-speed centrifugal blower body 2 is arranged in the fan housing 1, the magnetically suspended high-speed centrifugal blower body 2 is arranged on the inner side of the fan housing 1, an air inlet 3 is arranged on the upper end surface of the magnetically suspended high-speed centrifugal blower body 2, the air inlet 3 is fixed on the upper inner side surface of the fan housing 1, an air outlet pipe 4 is arranged on the outer side of the magnetically suspended high-speed centrifugal blower body 2, a positioning protrusion 5 is arranged on the outer side of the fan housing 1, a curved elastic sheet 6 is arranged on the inner side surface of the positioning protrusion 5, the curved elastic sheet 6 is supported on the outer surface of the air outlet pipe 4, a bolt 7 is inserted through the inner side surface of the upper end of the curved elastic sheet 6, a convex shaft 8 is arranged on the lower end of the bolt 7, the convex shaft 8 is inserted through the inner side surface of the curved elastic sheet 6, the outer surface of the convex shaft 8 The surface is connected with a first nut 9 by a thread (when the bent elastic sheet 6 is installed, the bent elastic sheet 6 can be driven to squeeze and support on the outlet pipe 4 by twisting the bolt 7 to rotate, and the convex shaft 8 of the bolt 7 rotates in the bent elastic sheet 6. The first nut 9 at the bottom is used to position the convex shaft 8 so that it will not slip upward, which is convenient for driving the bent elastic sheet 6 to lock on the outlet pipe 4 when twisting). The outer surface of the outlet pipe 4 is sleeved with a reducing positioning sleeve 10, which is sleeved on the outer surface of the outlet pipe 4. A supporting suspension rod 11 is provided on the upper end surface of the reducing positioning sleeve 10. By adopting a circle of the bent elastic sheet 6 to support the end face of the outlet pipe 4, elastic support can be performed. The middle end of the outlet pipe 4 is provided with a reducing positioning sleeve 10 for hoisting support and positioning. The support is stable and firm, which is convenient for shock absorption and stable in use.

[0026] The support rod 11 is inserted into the inner surface of the upper end of the fan housing 1. The upper surface of the support rod 11 is connected with a second nut 12 by a thread. When installed, the second nuts 12 are respectively arranged on both sides of the upper end of the support rod 11. The second nuts 12 are locked and fixed on the inner and outer end surfaces of the fan housing 1, so that the support rod 11 can be positioned and fixed, and the variable diameter locking sleeve 10 can be positioned, so that the air outlet duct 4 can be supported and fixed to maintain stability.

[0027] The curved elastic sheet 6 is made of elastic steel sheet, and its inner end is supported on the outer surface of the air outlet pipe 4. The eight groups of curved elastic sheets 6 are evenly distributed on the inner surface of the positioning protrusion 5. The distribution is even, the elastic support is large, and the air outlet pipe 4 can be stably squeezed and fixed. The curved elastic sheet 6 adopts a curved structure, and can be elastically buffered at the bend, and the air outlet pipe 4 can be elastically supported and positioned. It has a buffering performance and will not cause the air outlet pipe 4 to shake too much, and will not affect the air outlet, and is easy to use.

[0028] The left and right groups of support booms 11 are distributed on the surface of the variable diameter positioning sleeve 10, and the support booms 11 are inserted into the reserved insertion holes at the upper end of the fan housing 1 for easy insertion and installation;

[0029] The air inlet 3 is fixed to the inner surface of the upper end of the fan housing 1, and the air inlet 3 is exposed to the outside to facilitate air intake;

[0030] The inner surface of the variable diameter positioning sleeve 10 is covered with a rubber layer, which fits tightly on the outer surface of the outlet pipe 4. When in use, the variable diameter positioning sleeve 10 is conveniently sleeved on the surface of the outlet pipe 4. Since the rubber layer material is arranged on the inner side, the friction force can be increased when it is sleeved on the surface of the outlet pipe 4, the tightness can be increased, and the firmness can be increased.

[0031] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A shock absorbing mechanism for an air outlet duct of a magnetically suspended high-speed centrifugal blower, comprising a blower housing (1), wherein a magnetically suspended high-speed centrifugal blower body (2) is arranged in the blower housing (1), characterized in that: The magnetic levitation high-speed centrifugal blower body (2) is arranged on the inner side of the fan housing (1); the upper end surface of the magnetic levitation high-speed centrifugal blower body (2) is provided with an air inlet (3); the air inlet (3) is fixed to the upper inner side surface of the fan housing (1); the outer side of the magnetic levitation high-speed centrifugal blower body (2) is provided with an air outlet pipe (4); the outer side of the fan housing (1) is provided with a positioning protrusion (5); the inner side surface of the positioning protrusion (5) is provided with a curved elastic sheet (6); the curved elastic sheet (6) is supported on the air outlet pipe (4) 4), a bolt (7) is inserted into the inner surface of the upper end of the curved elastic sheet (6), a convex shaft (8) is arranged at the lower end of the bolt (7), the convex shaft (8) is inserted into the inner surface of the curved elastic sheet (6), the outer surface of the convex shaft (8) is connected to a first nut (9) by a thread, the outer surface of the outlet pipe (4) is sleeved with a reducing positioning sleeve (10), the reducing positioning sleeve (10) is sleeved on the outer surface of the outlet pipe (4), and a supporting suspension rod (11) is arranged on the upper end surface of the reducing positioning sleeve (10).

2. The shock absorbing mechanism for the air outlet duct of a magnetically suspended high-speed centrifugal blower according to claim 1, characterized in that: The support suspension rod (11) is inserted into the inner surface of the upper end of the fan housing (1), and the upper end surface of the support suspension rod (11) is threadedly connected to a second nut (12).

3. The shock absorbing mechanism for the air outlet duct of a magnetically suspended high-speed centrifugal blower according to claim 2, characterized in that: The second nuts (12) are respectively arranged on both sides of the upper end of the supporting suspension rod (11), and the second nuts (12) are locked and fixed on the inner and outer end surfaces of the fan housing (1).

4. The shock absorbing mechanism for the air outlet duct of a magnetically suspended high-speed centrifugal blower according to claim 1, characterized in that: The curved elastic sheet (6) is made of elastic steel sheet, and its inner end is supported on the outer surface of the air outlet pipe (4). Eight groups of the curved elastic sheets (6) are evenly distributed on the inner surface of the positioning protrusion (5).

5. The shock absorbing mechanism for the air outlet duct of a magnetically suspended high-speed centrifugal blower according to claim 1, characterized in that: The left and right groups of the support suspension rods (11) are distributed on the surface of the variable diameter positioning sleeve (10), and the support suspension rods (11) are inserted into the insertion holes reserved at the upper end of the fan housing (1).

6. The shock absorbing mechanism for the air outlet duct of a magnetically suspended high-speed centrifugal blower according to claim 1, characterized in that: The air inlet (3) is fixed to the inner surface of the upper end of the fan housing (1), and the air inlet (3) is exposed to the outside.

7. The shock absorbing mechanism for the air outlet duct of a magnetically suspended high-speed centrifugal blower according to claim 1, characterized in that: The inner surface of the variable diameter positioning sleeve (10) is covered with a rubber layer and is tightly sleeved and fitted on the outer surface of the air outlet pipe (4).

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