Impeller capable of adjusting angles of fan blades

Abstract

An impeller capable of adjusting angles of fan blades comprises a plurality of round blade seats, a blade connecting round table, a fixed round plate, a round baffle, an adjusting bolt, the blades and a hub, the round blade seats are welded to the hub, and a protruding round table is arranged in the middle of each round blade seat; six screw holes are formed in the fixed circular plate and correspond to six bolt holes in the blade connecting circular table, and adjusting bolts penetrate through the bolt holes to enter the screw holes to fix the blades on the hub; the blade angle adjusting structure has the beneficial effects that the blade angle can be quickly adjusted from the outside without dismounting the hub, the operation is convenient and reliable, and through the improvement of the structure, the blades of which the angles are adjusted one by one and the blades used by a one-time joint adjusting structure have universality and interchangeability, and the category and the structure of products are simplified.

Description

Technical Field

[0001] The utility model relates to an impeller of exhaust system equipment for mines. Background Art

[0002] With the changes in underground production conditions in coal mines, fans need to be able to quickly adjust the blade angle. Currently, when the blade angle needs to be adjusted, the hub must be removed and the bolts must be loosened from inside the hub to adjust the blade angle one by one, which often takes a long time to adjust and the process is cumbersome. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an impeller with adjustable fan blade angles.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An impeller with adjustable fan blade angles comprises a plurality of circular blade seats, a blade connecting cone, a fixed circular plate, a circular baffle, an adjusting bolt, a blade and a hub, and is characterized in that: the plurality of circular blade seats are welded to the hub, and a raised cone is provided in the middle of the circular blade seat; a blade connecting cone is provided on the blade, and the blade connecting cone is used to install and fix the blade, and there are 6 bolt holes on the blade connecting cone; the fixed circular plate has 6 screw holes corresponding to the 6 bolt holes on the blade connecting cone, and the adjusting bolt passes through the bolt hole and enters the screw hole to fix the blade on the hub, and there is an anti-loosening gasket on the adjusting bolt; a circular baffle is provided on the inner side of the circular blade seat, and after the blade is installed, the circular baffle is fixed to the circular blade seat with screws to prevent dust from entering.

[0006] When using, determine the blade angle and tighten the adjusting bolt. When the blade angle needs to be adjusted during operation, loosen the adjusting bolt, adjust the blade angle, and then tighten the adjusting bolt.

[0007] Compared with the prior art, the utility model has the following beneficial effects: the blade angle can be quickly adjusted from the outside without removing the hub, and the operation is convenient and reliable. In addition, through the improvement of the structure, the blades that adjust the angles one by one and the blades used in the one-time joint adjustment structure have universality and interchangeability, simplifying the category and structure of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of an impeller assembly capable of adjusting the angle of a fan blade according to the utility model;

[0009] Figure 2 It is a schematic diagram of the impeller structure of the utility model with adjustable fan blade angle (only a partial schematic diagram of one blade is drawn).

[0010] Description of the symbols: circular blade seat 1, blade connecting truncated cone 2, fixed circular plate 3, circular baffle 4, adjusting bolt 5, blade 6, hub 7, raised truncated cone 8; bolt hole 9; screw hole 10, screw 11, anti-loosening gasket 12. DETAILED DESCRIPTION

[0011] Example

[0012] Figure 1 This is a schematic diagram of an impeller assembly capable of adjusting the angle of a fan blade according to the utility model; Figure 2 1. The utility model is a schematic diagram of an impeller structure with adjustable fan blade angle. The utility model is an impeller with adjustable fan blade angle, comprising a plurality of circular blade seats 1, a blade connecting truncated cone 2, a fixed circular plate 3, a circular baffle 4, an adjusting bolt 5, a blade 6, and a wheel hub 7, characterized in that: the plurality of circular blade seats 1 are welded to the wheel hub 7, and a raised truncated cone 8 is provided in the middle of the circular blade seat 1; a blade connecting truncated cone 2 is provided on the blade 6, and the blade connecting truncated cone 2 is used to install and fix the blade, and there are 6 bolt holes 9 on the blade connecting truncated cone 2; the fixed circular plate 3 has 6 screw holes 10, which correspond to the 6 bolt holes 9 on the blade connecting truncated cone 2, and the adjusting bolt 5 passes through the bolt hole 9 and enters the screw hole 10 to fix the blade 6 on the wheel hub 7, and there is an anti-loosening gasket 12 on the adjusting bolt 5; a circular baffle 4 is provided on the inner side of the circular blade seat 1, and after the blade is installed, the circular baffle 4 is fixed to the circular blade seat 1 with screws 11 to prevent dust from entering.

[0013] When in use, the blade angle is determined and then the adjusting bolt 5 is tightened. When the blade angle needs to be adjusted during operation, the adjusting bolt 5 is loosened, and then the adjusting bolt 5 is tightened after the blade angle is adjusted.

[0014] In this way, the blade angle can be quickly adjusted from the outside without removing the hub, which is convenient and reliable to operate. In addition, through the improvement of this structure, the blades that adjust the angle one by one and the blades used in the one-time joint adjustment structure have universality and interchangeability, simplifying the product category and structure.

Claims

1. An impeller with adjustable fan blade angle, comprising a plurality of circular blade seats, a blade connecting truncated cone, a fixed circular plate, a circular baffle, an adjusting bolt, a blade, and a hub, characterized in that: The several circular blade seats are welded on the wheel hub, and there is a raised cone in the middle of the circular blade seat; there is a blade connecting cone on the blade, which is used to install and fix the blade, and there are 6 bolt holes on the blade connecting cone; the fixed circular plate has 6 screw holes, which correspond to the 6 bolt holes on the blade connecting cone, and the adjusting bolts pass through the bolt holes and enter the screw holes to fix the blades on the wheel hub, and there are anti-loosening gaskets on the adjusting bolts; there is a circular baffle on the inner side of the circular blade seat, and after the blades are installed, the circular baffle is fixed to the circular blade seat with screws to prevent dust from entering.

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