High-shock-resistance brushless condensation fan

Abstract

The utility model discloses a high-shock-resistance brushless condensation fan, which comprises a mesh enclosure, fan blades and a motor, and is characterized in that a plurality of fan mounting feet are arranged on the outer ring of the mesh enclosure, first metal inserts are arranged in cylindrical mounting holes of the fan mounting feet, the first metal inserts are in a straight tube shape, and the first metal inserts are arranged in the cylindrical mounting holes of the fan mounting feet. A plurality of stepped holes matched and butted with the motor mounting feet are formed in the inner ring of the mesh enclosure, second metal inserts are arranged in the stepped holes in a matched manner, the second metal inserts are straight cylinder-shaped, limiting rings are arranged at upper ports of the second metal inserts, and the limiting rings are attached to the stepped surfaces of the stepped holes. The structure is reasonable, the connecting part of the mesh enclosure is strengthened, and the anti-seismic property is improved.

Description

Technical Field

[0001] The utility model relates to an improved invention of a brushless condensing fan, in particular to an improved invention of a highly shock-resistant brushless condensing fan. Background Art

[0002] Brushless condensing fans for construction machinery work under harsh working conditions. Vibration often causes the motor or fan to become loose or even fall out due to the crushing of the plastic mounting feet, and dirt and other impurities accumulate between the outer end of the fan blade and the wind circle, resulting in poor balance and fan vibration, which affects the life of the fan. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a highly shock-resistant brushless condensing fan.

[0004] In order to solve the above technical problems, the utility model is implemented by adopting the following technical scheme: this kind of highly shock-resistant brushless condensing fan includes a mesh cover, fan blades and a motor, and is characterized in that: a plurality of fan mounting feet are provided on the outer ring of the mesh cover, and a first metal insert is provided in the cylindrical mounting hole of the fan mounting foot, and the first metal insert is a straight-cylindrical type; a plurality of step holes matching the motor mounting feet are provided on the inner ring of the mesh cover, and a second metal insert is matched in the step hole, and the second metal insert is a straight-cylindrical type; and a limit ring is provided at the upper port, and the limit ring is in contact with the step surface of the step hole.

[0005] The fan blade comprises a wheel hub, a fan blade and a wind ring. The fan blade is connected between the wheel hub and the wind ring. The outer end of the fan blade is open-type, and a notch is provided on the corresponding wind ring.

[0006] The notch is located between two adjacent fan blades, and the notch contour extends from the inclined upper end to the lower end of the first fan blade and transitions to the inclined upper end of the second fan blade.

[0007] A triangular guide plate is also provided between the fan blade and the wind circle, and the triangular guide plate is connected to the inclined lower end of the fan blade and the notch of the wind circle.

[0008] The beneficial effect of the utility model is that the improved highly shock-resistant brushless condensing fan has a metal insert provided at the connecting part of the mesh cover to obtain a higher installation strength to prevent the plastic installation foot from being crushed, and at the same time the outer end of the fan blade is open-ended to directly throw out accumulated dirt and other impurities to avoid accumulation that affects the balance and life of the fan blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is a structural exploded view of the utility model. DETAILED DESCRIPTION

[0012] The accompanying drawings show the structure of the utility model, and the following further describes its relevant details in conjunction with the accompanying drawings. Figure 1-2 The highly seismic-resistant brushless condensing fan comprises a mesh cover 1, a fan blade 2 and a motor 3. The outer ring of the mesh cover 1 is provided with a plurality of fan mounting feet 4. The columnar mounting holes of the fan mounting feet 4 are provided with a first metal insert 5. The first metal insert 5 is a straight-cylindrical type. The inner ring of the mesh cover 1 is provided with a plurality of step holes matching the mounting feet of the motor 3. The step holes are matched with a first metal insert 6. The first metal insert 6 is a straight-cylindrical type, and a limiting ring 7 is provided at the upper end. The limiting ring 7 fits with the step surface of the step hole. The first metal insert 5 and the first metal insert 6 added at the connection part of the mesh cover 1 can effectively improve the structural installation strength, and can prevent the plastic mounting feet of the engineering machinery from being crushed and loosened or even falling out due to vibration under harsh working conditions.

[0013] As a specific implementation of further improvement, the fan blade 2 includes a hub 8, a fan blade 9 and a wind ring 10. The fan blade 9 is connected between the hub 8 and the wind ring 10. The outer end of the fan blade 9 is open, and a corresponding notch 11 is provided on the wind ring 10 for the outer end of the open fan blade 9 to directly throw out mud and sand to avoid accumulation on the wind ring 10, which affects the balance and life.

[0014] As a specific implementation of the further improvement, the notch 11 is located between two adjacent fan blades 9 , and the outline of the notch 11 extends from the inclined upper end to the lower end of the first fan blade 9 , and transitions to the inclined upper end of the second fan blade 9 .

[0015] As a specific implementation of further improvement, a triangular guide plate 12 is further provided between the fan blade 9 and the wind circle 10. The triangular guide plate 12 is connected to the inclined lower end of the fan blade 9 and the notch 11 of the wind circle 10 to improve the connection stability and guide part of the mud and sand thrown out by the fan blade 9.

[0016] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A highly shock-resistant brushless condensing fan, comprising a mesh cover, a fan blade and a motor, characterized in that: The outer ring of the mesh cover is provided with a plurality of fan mounting feet, and the cylindrical mounting holes of the fan mounting feet are provided with a first metal insert, the first metal insert is a straight-cylindrical type, and the inner ring of the mesh cover is provided with a plurality of step holes matching the motor mounting feet, and the step holes are matched with second metal inserts, the second metal insert is a straight-cylindrical type, and the upper port is provided with a limiting ring, which fits with the step surface of the step hole.

2. The highly shock-resistant brushless condensing fan according to claim 1, characterized in that: The fan blade comprises a wheel hub, a fan blade and a wind ring. The fan blade is connected between the wheel hub and the wind ring. The outer end of the fan blade is open-type, and a notch is provided on the corresponding wind ring.

3. The highly shock-resistant brushless condensing fan according to claim 2, characterized in that: The notch is located between two adjacent fan blades, and the notch contour extends from the inclined upper end to the lower end of the first fan blade and transitions to the inclined upper end of the second fan blade.

4. The highly shock-resistant brushless condensing fan according to claim 3, characterized in that: A triangular guide plate is also provided between the fan blade and the wind circle, and the triangular guide plate is connected to the inclined lower end of the fan blade and the notch of the wind circle.

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