CN-121988526-A - Air current sieve wind wheel of variable wind leaf angle

CN121988526ACN 121988526 ACN121988526 ACN 121988526ACN-121988526-A

Abstract

The invention discloses an air flow screen wind wheel with a variable wind blade angle, belongs to the technical field of material screening, and is used for solving at least one of the problems of unchangeable wind wheel blade angle, single air flow direction, low screening efficiency and low accuracy in the prior art. The wind wheel of the air flow sieve comprises a wind wheel shaft, a top adjusting plate, a bottom adjusting plate, a top flange plate, a bottom flange plate and fan blades, wherein the top flange plate and the bottom flange plate are sleeved on the wind wheel shaft, at least one of the top flange plate and the bottom flange plate is movably connected with the wind wheel shaft, the top ends of the fan blades are pivotally connected with the top flange plate through the top adjusting plate, and the bottom ends of the fan blades are pivotally connected with the bottom flange plate through the bottom adjusting plate. The invention can be used for screening materials.

Inventors

JIANG HAISHEN
QIU ZIJUAN
LIU YUHAN
Feng Longchao
YU SHIJIE
DUAN CHENLONG
HUANG LONG
Pan miao
CHEN KAIKAI
WANG DAN

Assignees

中国矿业大学

Dates

Publication Date: 20260508
Application Date: 20260320

Claims (10)

1. The air flow sieve wind wheel with the variable wind blade angles is characterized by comprising a wind wheel shaft, a top adjusting plate, a bottom adjusting plate, a top flange plate, a bottom flange plate and wind blades; The top flange plate and the bottom flange plate are both sleeved on the wind wheel shaft, at least one of the top flange plate and the bottom flange plate is movably connected with the wind wheel shaft, the top ends of the fan blades are pivotally connected with the top flange plate through the top adjusting plate, and the bottom ends of the fan blades are pivotally connected with the bottom flange plate through the bottom adjusting plate.
2. The variable vane angle air flow screen wind wheel of claim 1, wherein the number of vanes is plural, and the plurality of vanes are uniformly arranged along the circumferential direction of the wind wheel shaft.
3. The variable vane angle air flow screen rotor of claim 1 wherein the top and bottom adjustment plates are symmetrically disposed.
4. The variable vane angle air flow screen rotor of claim 1 wherein the top and bottom adjustment plates each comprise a first connection plate, a second connection plate, and an angle adjustment assembly disposed between the first and second connection plates.
5. The variable vane angle air flow screen rotor of claim 4 wherein the first connection plate is pivotally connected to a second connection plate via an angle adjustment assembly, the first connection plate is fixedly connected to the vanes, and the second connection plate is fixedly connected to the top flange or the bottom flange.
6. The variable vane angle air flow screen rotor of any one of claims 1 to 5, further comprising a top snap assembly and a bottom snap assembly; After the angle of the fan blade is adjusted, the top flange plate is fixedly connected with the wind wheel shaft through a top buckle assembly, and the bottom flange plate is fixedly connected with the wind wheel shaft through a bottom buckle assembly.
7. The variable vane angle air flow screen rotor of claim 6, wherein the top clip assembly comprises a first top clip and a second top clip, the first top clip and the second top clip being nested on the rotor shaft and removably connected to the rotor shaft.
8. The variable vane angle air flow screen wind wheel of claim 7, wherein after the vane angle is adjusted, the top flange is located between the first top buckle and the second top buckle, and the top flange is fixedly connected with the wind wheel shaft through the first top buckle and the second top buckle.
9. The variable vane angle air flow screen rotor of claim 6, wherein the bottom clip assembly comprises a first bottom clip and a second bottom clip, the first bottom clip and the second bottom clip being nested on the rotor shaft and removably connected to the rotor shaft.
10. The variable vane angle air flow screen wind wheel of claim 9, wherein after the vane angle is adjusted, the bottom flange is located between the first bottom buckle and the second bottom buckle, and the bottom flange is fixedly connected with the wind wheel shaft through the first bottom buckle and the second bottom buckle.

Description

Air current sieve wind wheel of variable wind leaf angle Technical Field The invention belongs to the technical field of material screening, and particularly relates to an airflow screen wind wheel with a variable wind blade angle. Background The airflow sieve is a device for sieving materials through high-speed airflow, and utilizes wind wheel blades arranged in a sieve barrel to enable the materials to be thrown to the sieve and to permeate through sieve holes under the action of centrifugal force and cyclone, so that the sieving purpose is achieved. Wind turbine blades are key components of airflow screens, and their structure and angle directly affect the yield and accuracy of screening. However, the angle of the wind wheel blade of the existing airflow screen is usually fixed, the airflow direction and the air duct structure cannot be adjusted according to the properties and working conditions of different materials, multi-angle and multi-directional airflow is difficult to provide, screening precision is low, adaptability is insufficient, screening requirements of diversified materials are difficult to meet, and screening efficiency and screening precision are affected. Disclosure of Invention In view of the above analysis, an embodiment of the present invention is directed to providing an airflow screen wind wheel with a variable blade angle, which is used for solving at least one of the problems of the prior art that the blade angle of the wind wheel is not variable, the airflow direction is single, and the screening efficiency and accuracy are low. The aim of the invention is mainly realized by the following technical scheme: The invention provides an air flow sieve wind wheel with a variable wind blade angle, which comprises a wind wheel shaft, a top adjusting plate, a bottom adjusting plate, a top flange plate, a bottom flange plate and wind blades; The top flange plate and the bottom flange plate are both sleeved on the wind wheel shaft, at least one of the top flange plate and the bottom flange plate is movably connected with the wind wheel shaft, the top ends of the fan blades are pivotally connected with the top flange plate through the top adjusting plate, and the bottom ends of the fan blades are pivotally connected with the bottom flange plate through the bottom adjusting plate. Further, the quantity of fan blades is a plurality of, and a plurality of fan blades are evenly arranged along the circumference of the wind wheel shaft. Further, the top adjusting plate and the bottom adjusting plate are symmetrically arranged. Further, the top adjusting plate and the bottom adjusting plate each comprise a first connecting plate, a second connecting plate and an angle adjusting assembly arranged between the first connecting plate and the second connecting plate. Further, the first connection disc is pivotally connected with the second connection disc through the angle adjusting component, the first connection disc is fixedly connected with the fan blade, and the second connection disc is fixedly connected with the top flange disc or the bottom flange disc. Further, the airflow screen wind wheel further comprises a top buckle assembly and a bottom buckle assembly; after the angle of the fan blade is adjusted, the top flange plate is fixedly connected with the wind wheel shaft through the top buckle assembly, and the bottom flange plate is fixedly connected with the wind wheel shaft through the bottom buckle assembly. Further, the top buckle assembly comprises a first top buckle and a second top buckle, and the first top buckle and the second top buckle are sleeved on the wind wheel shaft and detachably connected with the wind wheel shaft. Further, after the fan blade angle is adjusted, the top flange plate is located between the first top buckle and the second top buckle, and the top flange plate is fixedly connected with the wind wheel shaft through the first top buckle and the second top buckle. Further, the bottom buckle assembly comprises a first bottom buckle and a second bottom buckle, and the first bottom buckle and the second bottom buckle are sleeved on the wind wheel shaft and detachably connected with the wind wheel shaft. Further, after the fan blade angle is adjusted, the bottom flange plate is located between the first bottom buckle and the second bottom buckle, and the bottom flange plate is fixedly connected with the wind wheel shaft through the first bottom buckle and the second bottom buckle. Compared with the prior art, the invention has at least one of the following beneficial effects: A) According to the air flow screen wind wheel with the variable air blade angle, the top adjusting disc and the bottom adjusting disc are additionally arranged between the air blades and the top flange disc and the bottom flange disc, so that the horizontal angle and the inclined angle of the air blades can be flexibly adjusted from the horizontal direction and the vertical direction according to