A vibration buffer device for industrial fan blades

Abstract

The present invention relates to an industrial fan blade vibration buffer device, comprising a blade petiole and a blade, wherein the blade petiole and the blade are connected via a connecting piece, wherein the connecting piece is formed with left and right concentric sleeves spaced apart from each other, wherein a special-shaped piece is embedded inside the two sleeves, and a vibration-isolating rubber sleeve is sleeved on the special-shaped piece, so that the outer wall of the special-shaped piece and the inner wall of the sleeve are separated by the vibration-isolating rubber sleeve; the blade petiole is inserted between the two concentric sleeves and connected to the shaft between the connecting piece. The present invention realizes a non-rigid connection between the blade petiole and the blade, wherein the rubber buffer absorbs part of the vibration from the blade, thereby improving the working condition of the reduction motor shaft, prolonging the life of the motor, and making the operation quieter.

Description

Technical Field

[0001] The invention relates to an industrial fan, and in particular discloses a vibration buffer device for industrial fan blades. Background Art

[0002] Industrial fans are widely used in industrial plants, logistics warehouses, waiting rooms, exhibition halls, supermarkets and other tall spaces as the preferred solution for space ventilation and personnel cooling. The comfort brought by super-large energy-saving fans is unmatched by other fans. Under the super-large energy-saving fans, you will feel three-dimensional air supply from all directions, thus covering the entire body, maximizing the sweat evaporation surface, and forming a breeze system similar to nature.

[0003] The traditional industrial fan has a rigid connection between the blade handle and the blade. The vibration generated by the rotation of the blades is transmitted to the reducer and the motor shaft, affecting the working condition and service life of the reducer and the motor. At the same time, the rotation of the blades will generate a lot of noise, affecting the production environment of the workshop. Summary of the invention

[0004] The purpose of the present invention is to provide an industrial fan buffer device that provides a non-rigid connection between a petiole and a blade and can absorb part of the vibration from the blade in order to solve the above problems.

[0005] The technical solution adopted in the present invention is as follows:

[0006] An industrial fan blade vibration buffer device comprises a blade petiole and a blade, wherein the blade petiole and the blade are connected via a connecting piece, wherein the connecting piece is formed with left and right concentric shaft sleeves spaced apart from each other, wherein a special-shaped piece is embedded inside the two shaft sleeves, and a vibration-isolating rubber sleeve is sleeved on the special-shaped piece, so that the outer wall of the special-shaped piece and the inner wall of the shaft sleeve are separated by the vibration-isolating rubber sleeve; the blade petiole is inserted between the two concentric shaft sleeves and is axially connected to the connecting piece.

[0007] Furthermore, a seal is provided on the outer end surface of the sleeve.

[0008] Furthermore, a buffer pad is arranged between the special-shaped part and the blockage.

[0009] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0010] The vibration isolation rubber sleeve can absorb part of the vibration from the blades, improve the working condition of the reduction motor shaft, extend the life of the motor, reduce energy consumption, and run more quietly. The service life of the vibration isolation rubber sleeve is more than 5 years. When the vibration isolation rubber sleeve is aged, only a new vibration isolation rubber sleeve needs to be put on without replacing other parts. It is easy to replace and has low maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a connection structure diagram of the present invention;

[0012] Figure 2 This is a structural diagram of the connecting piece described in the present invention. DETAILED DESCRIPTION

[0013] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0014] like Figures 1-2 As shown, an industrial fan blade vibration buffer device comprises a petiole 2 and a blade 1, wherein the petiole 2 and the blade 1 are connected via a connecting piece 3; the connecting piece 3 is formed with two left and right concentric sleeves 31 spaced apart from each other; a special-shaped piece 32 is embedded inside the two sleeves 31, a plug 35 is arranged on the outer end surface, and a buffer pad 34 is arranged between the special-shaped piece 32 and the plug 35; a vibration isolation rubber sleeve 33 is sleeved on the special-shaped piece 32, so that the outer wall of the special-shaped piece 32 and the inner wall of the sleeve 31 are separated by the vibration isolation rubber sleeve 33, and the vibration isolation rubber sleeve 33 can absorb part of the vibration from the blade 1, improve the working condition of the reduction motor shaft, extend the life of the motor, and make the operation quieter; the petiole 2 is inserted between the two concentric sleeves 31, and the connecting shaft passes through the sleeve 31, the petiole 2, and the sleeve 31 in sequence to connect the petiole 2 with the connecting piece 3.

[0015] Due to the addition of the buffer device, the blade 1 of the fan is horizontal when it is stopped. During operation, the force applied to the blade 1 will be tilted up to 3° at most according to the rotation speed of the fan, thereby releasing the pressure and resistance applied during operation, reducing the torque output by the motor, and reducing power consumption and energy saving. At the same time, the blade tip tilts up 3 degrees compared to the blade root, improving the airflow delivered by the fan to the ground from a cylindrical shape to a conical shape, thereby expanding the coverage of the fan.

[0016] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An industrial fan blade vibration buffer device, comprising a blade handle and a blade, wherein the blade handle and the blade are connected by a connecting piece, characterized in that: The connecting piece is formed with two left and right concentric sleeves spaced apart from each other, a special-shaped piece is embedded in the two sleeves, and a vibration-isolating rubber sleeve is sleeved on the special-shaped piece, so that the outer wall of the special-shaped piece and the inner wall of the sleeve are separated by the vibration-isolating rubber sleeve; the petiole is inserted between the two concentric sleeves and connected to the shaft between the connecting piece; The outer end surface of the sleeve is provided with a plug; A buffer pad is arranged between the special-shaped part and the blocking.

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