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Low-noise draught fan special for automatic vehicle washing machine and assembly method of draught fan

A car washing machine, low-noise technology, applied in the direction of machines/engines, liquid fuel engines, components of pumping devices for elastic fluids, etc., can solve the problems of abnormal working noise, self-weight, short service life, etc. The effect of weight, reduction of destructive force, and reduction of operating noise

Pending Publication Date: 2019-01-18
上海加洪自动化设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of short service life, abnormal noise and heavy weight in the prior art of the car washing machine fan, the present invention provides a special low-noise fan for automatic car washing machines, which includes a fan cover, a motor installed on the back of the fan cover and The fan impeller installed in the inner cavity of the fan cover;

Method used

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  • Low-noise draught fan special for automatic vehicle washing machine and assembly method of draught fan
  • Low-noise draught fan special for automatic vehicle washing machine and assembly method of draught fan
  • Low-noise draught fan special for automatic vehicle washing machine and assembly method of draught fan

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Effect test

Embodiment 1

[0034] As shown in the figure, this embodiment provides a special low-noise fan for automatic car washing machines, which includes a fan cover 1, a motor 2 installed on the back of the fan cover 1, and a fan impeller 3 installed in the inner cavity of the fan cover 1;

[0035] The fan cover 1 includes a circumferential ring plate 100, an air inlet end ring plate 101 arranged on the front of the circumferential ring plate 100, an installation back plate 102 arranged on the back of the circumferential ring plate 100, and a ring plate arranged around the circumferential ring plate 100. Side exhaust pipe 103;

[0036] The motor 2 is fixedly installed on the outer end of the installation backplane 102, and the output shaft extends through the installation backplane 102 into the inner cavity of the fan cover 1;

[0037]The fan impeller 3 includes a number of blades 300, a connecting sleeve 301, and an oppositely arranged air inlet end impeller disk 302 and an inner end impeller disk...

Embodiment 2

[0044] In order to further improve the anti-shock and shock-absorbing ability of the fan impeller, the diameter of the inner ring of the connecting sleeve 301 in this embodiment gradually increases from the inner end to the outer end, and a vulcanized rubber layer 6 is cast on the inner ring surface of the connecting sleeve 301. The thickness of the vulcanized rubber layer 6 gradually increases from the inner end to the outer end so that the diameter of the inner ring of the vulcanized rubber layer 6 is equal to the outer diameter of the output shaft. On the one hand, this design makes the inner ring surface of the connecting sleeve 301 closely fit the output shaft, and on the other hand On the one hand, when the fan impeller 3 swings, the fan impeller 3 drives the connecting sleeve 301 to swing, and the vulcanized rubber layer 6 gradually thickens from the inner end to the outside, which will significantly absorb vibration energy and slow down the vibration phenomenon.

[0045...

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Abstract

The invention discloses a low-noise draught fan special for an automatic vehicle washing machine. The draught fan includes a draught fan shield, a motor and a draught fan impeller; the draught fan impeller includes multiple blades, a connecting sleeve, an air inlet end impeller disc and an inner end impeller disc, wherein the air inlet end impeller disc and the inner end impeller disc are disposedoppositely; the inner end impeller disc sleeves an output shaft of the motor and is in key joint with the connecting sleeve at the outer end of the output shaft, and the connecting sleeve is fixedlyconnected to the inner end impeller disc. The blades are divided into the first-group blades and the second-group blades; the second-group blades and the first-group blades are staggered, and the second-group blades are made of vulcanized rubber and have stretching prestress. Traditional metal blades are alternately replaced with the vulcanized rubber blades for the first time, and the weight of the draught fan impeller is remarkably reduced. On the one hand, the balance of the draught fan impeller cannot be broken during manufacturing; on the other hand, the weight of the draught fan impelleris remarkably reduced, and the connecting sleeve cannot be damaged even if some small vibration is generated during work.

Description

technical field [0001] At present, the number of domestic automobiles has increased greatly. With the increase of labor costs, the comprehensive cost of the car washing industry has also increased greatly. For this reason, the car washing industry, especially medium and large-scale stores, are now equipped with automatic car washing equipment; domestic automatic car washing machine equipment All are equipped with several blowers to dry the sides and top of the car after washing. [0002] Existing fans are all composed of fan cover, fan impeller and motor, wherein the fan impeller is composed of end plate, blade connected to the end plate and shaft sleeve keyed to the output shaft of the motor. The end makes it keyed to the output shaft, but because the shaft sleeve is rigidly connected to the end plate and the blade, this destroys the balance of the fan impeller. In addition, the material is made of metal, and its own weight is large. After long-term operation, as long as ther...

Claims

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Application Information

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IPC IPC(8): F04D25/08F04D29/28F04D29/62F04D29/66
CPCF04D25/08F04D29/281F04D29/626F04D29/666F04D29/668
Inventor 陶国富
Owner 上海加洪自动化设备有限公司
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