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Short-shaft mining main fan

A short shaft, main fan technology, applied in the direction of mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of poor cooling effect of motors, heavy weight, large fans, etc., and achieve high efficiency and low noise

Inactive Publication Date: 2016-08-10
SHANXI JULONG FAN & BLOWERS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the mining fans on the market are counter-rotating main fans (such as figure 1 ), due to the structural characteristics of the counter-rotating main fan, the motor bearings cannot bear the weight of the fan, and the heat dissipation effect of the motor is poor, so it cannot be used in a tunnel in a harsh environment
With the advancement of technology, the fan with adjustable blade angle has been successfully developed by our company. Its core technology is the synchronous adjustment mechanism of axial fan blades, which has obtained a Chinese patent (patent number: CN201220146486.6, patent name: mine axial flow main fan synchronous adjustment mechanism for moving blades at shutdown), but this high-efficiency fan is heavy, and the motor bearings cannot bear the weight of the fan, so it cannot be used directly on the counter-rotating main fan

Method used

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Experimental program
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Effect test

Embodiment 1

[0014] attached figure 2 It is a structural schematic diagram of Embodiment 1 of the short-axis mine main fan fan of the present invention. The short-axis mine main fan fan of the present invention includes a current collector 1, an outer shell 2, an adjustable blade angle fan 3, an inner shell 4, and a short shaft 5 , short shaft bearing 6, braking device 7, motor 8, diffusion muffler 9, current collector 1 is connected with shell 2, and shell 2 is equipped with inner shell 4, adjustable blade angle fan 3 (the core technology of adjustable blade angle fan It is a synchronous adjustment mechanism for the blades of the axial flow fan. For details, please refer to the Chinese patent: Synchronous adjustment mechanism for the rotor blades of the mine axial flow main fan, patent number: CN201220146486.6). The inner shell 4 is equipped with a short shaft 5, a short shaft bearing 6, Braking device 7, motor 8, adjustable blade angle fan 3 is connected with short shaft 5, short shaft ...

Embodiment 2

[0016] attached image 3 It is a schematic structural view of Embodiment 2 of the short-axis mine main fan fan of the present invention. According to the above-mentioned short-axis mine main fan fan, a blower 13 is connected to the ventilation duct 10 between the inner shell 4 and the outer shell 2, Cool the motor and bearings with forced ventilation. Since the ventilating air is clean ambient air, the present invention can be used in tunnels in harsh environments.

[0017] Compared with the prior art, the fan of the present invention has high efficiency, energy saving, low noise, the angle of the fan blade can be adjusted as a whole at one time, and the air can be reversed and blown in the opposite direction. . The external dimension can be the same as that of the counter-rotating main fan, so the counter-rotating main fan can be replaced, and other auxiliary facilities remain unchanged.

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Abstract

A main fan with a short shaft for mining, including a current collector, an outer shell, an inner shell, a fan with adjustable blade angles, a short shaft, a short shaft bearing, a brake device, a motor, and a diffuser silencer. It is characterized in that: the current collector and The shell is connected, and the shell is equipped with an inner shell and an adjustable blade angle fan. The inner shell is equipped with a short shaft, short shaft bearings, brakes, and a motor. The adjustable blade angle fan is connected to the short shaft. There are short shaft bearings and brakes on the short shaft. device, the short shaft is connected to the motor, there is a ventilation pipe between the inner shell and the outer shell, the outer shell is connected to the diffusion muffler, and the inner cylinder of the diffusion muffler is provided with ventilation holes; the ventilation duct between the inner shell and the outer shell is connected with blower. The beneficial effects are: the fan has high efficiency, energy saving, low noise, and the angle of the fan blades can be adjusted as a whole, so as to adjust the wind pressure and air volume, and can reverse and reverse the air supply; the motor is in a forced ventilation and heat dissipation environment, and the present invention can be used outside the tunnel , and can also be used in tunnels in harsh environments.

Description

technical field [0001] The invention relates to a mine fan, in particular to a short-axis mine main fan fan. Background technique [0002] At present, the mining fans on the market are counter-rotating main fans (such as figure 1 ), due to the structural characteristics of the counter-rotating main fan, the motor bearings cannot bear the heavy fan, and the heat dissipation effect of the motor is poor, so it cannot be used in tunnels in harsh environments. . With the advancement of technology, the fan with adjustable blade angle has been successfully developed by our company. Its core technology is the synchronous adjustment mechanism of axial fan blades, which has obtained a Chinese patent (patent number: CN201220146486.6, patent name: mine axial flow main fan Synchronous adjustment mechanism for moving blades when the machine is stopped), but this high-efficiency fan is heavy, and the motor bearings cannot bear the weight of the fan, so it cannot be directly used on the c...

Claims

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Application Information

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IPC IPC(8): F04D25/08F04D29/053F04D29/52F04D29/66F04D29/58
CPCF04D25/082F04D29/053F04D29/522F04D29/5806F04D29/584F04D29/663
Inventor 李世龙吕存栓李春萍谢海军郑新华丁峰任玲
Owner SHANXI JULONG FAN & BLOWERS