Glass reinforced plastic fan high-strength impeller

Abstract

The utility model discloses a kind of glass steel fan high-strength impeller, it is related to fan impeller technical field, including impeller main body, the impeller main body includes the impeller skeleton formed of upper wheel cover and lower wheel cover, the lower wheel cover between upper wheel cover is equipped with multiple sets of impeller piece, welding has reinforcing sheet between adjacent two groups of impeller piece.The utility model is through the ingenious design of reinforcing sheet and reinforcing rib, the bending resistance and fatigue strength of impeller piece are significantly enhanced, to greatly prolong the service life of impeller;In addition, impeller piece adopts the combination design of first single-edged blade and second single-edged blade, and realizes accurate splicing by positioning groove and positioning member, not only simplifies assembly process, also improves the precision and stability of assembly, while, the adoption of reinforcing sheet and reinforcing rib also effectively enhances the overall strength of impeller, so that it can still maintain stable performance under high pressure, high impurity environment.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine impeller technology, specifically a high-strength fiberglass wind turbine impeller. Background Technology

[0002] When the impeller of the FRP fan rotates, centrifugal force causes the air to move forward and outward, creating a series of spiral motions. The air between the impeller blades accelerates in a spiral motion, forcing the gas outside the pump body into the side channel. After entering the side channel, the gas is compressed and then returns to the space between the impeller blades to accelerate again.

[0003] Fiberglass fans are used in the production processes of large industrial and mining enterprises. When there is high-temperature flue gas and dust in the air, the high-speed rotating centrifugal fan impeller will be severely damaged. The low strength of the impeller will greatly reduce the service life of the fan, causing significant economic losses to the enterprise, thereby shortening the service life of the fan and increasing maintenance costs. The impellers in the existing technology are mostly made of ordinary steel or aluminum alloy, which are prone to deformation under high pressure and high impurity environment. Therefore, a high-strength impeller for fiberglass fans is proposed. Utility Model Content

[0004] Based on this, the present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a high-strength impeller for fiberglass fans, which can increase the strength of the blades in the impeller and extend the service life of the impeller.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength impeller for a fiberglass fan, comprising an impeller body, wherein the impeller body comprises an impeller frame composed of an upper impeller cover and a lower impeller cover, wherein multiple sets of impeller blades are provided between the upper impeller cover and the lower impeller cover, and reinforcing plates are welded between adjacent sets of impeller blades;

[0006] Each set of impeller blades consists of a first single-sided blade and a second single-sided blade. The side of the first single-sided blade and the second single-sided blade that are in contact with each other has a positioning groove. Multiple sets of reinforcing ribs that can enhance the bending resistance of the impeller blades are fixed in the positioning groove. Each set of reinforcing ribs is distributed in an X shape.

[0007] As a preferred technical solution, the upper and lower ends of the first and second single-sided blades are each provided with two sets of positioning components, which are integrally cast with the first and second single-sided blades.

[0008] As a preferred technical solution, the upper wheel cover and the lower wheel cover are provided with insertion slots at positions corresponding to each set of positioning components, and the positioning components can be welded to the edge of the insertion slots using a spot welding machine.

[0009] As a preferred technical solution, a shaft disk mounting hole is reserved at the axle center of the lower wheel cover, and a shaft disk is assembled in the shaft disk mounting hole by bolts.

[0010] As a preferred technical solution, a shaft hole is reserved at the axial position of the shaft disk, and a keyway is provided on the inner wall of the shaft hole.

[0011] As a preferred technical solution, the multiple sets of impeller blades are distributed at equal intervals along the circumference of the lower impeller cover, and the multiple sets of impeller blades form an impeller within the impeller frame.

[0012] In summary, the present invention has the following main advantages:

[0013] This invention significantly enhances the bending and fatigue strength of the impeller blades through the ingenious design of reinforcing plates and ribs, thereby greatly extending the service life of the impeller. In addition, the impeller blades adopt a combination design of first and second single-sided blades, and achieve precise splicing through positioning grooves and positioning parts, which not only simplifies the assembly process but also improves the assembly accuracy and stability. At the same time, the use of reinforcing plates and ribs also effectively enhances the overall strength of the impeller, enabling it to maintain stable performance even under high pressure and high impurity environments. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the impeller body of this utility model;

[0015] Figure 2 This is a structural diagram of the impeller body of this utility model.

[0016] Figure 3 This is a schematic diagram of the impeller blade and lower impeller cover structure of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the lower wheel cover of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the impeller blade of this utility model;

[0019] Figure 6 This is a side view of a single-sided blade of this utility model.

[0020] In the diagram: 100, impeller body; 110, upper impeller cover; 120, lower impeller cover; 130, impeller blade; 131, first single-sided blade; 132, second single-sided blade; 133, positioning groove; 134, positioning component; 135, reinforcing rib; 140, reinforcing plate; 150, shaft disc; 151, shaft hole; 160, insertion groove; 170, shaft disc mounting hole. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] The embodiments of this utility model will be described below based on its overall structure.

[0023] A high-strength impeller for fiberglass fans, such as Figures 1 to 6 As shown, it includes an impeller body 100, which includes an impeller frame composed of an upper impeller cover 110 and a lower impeller cover 120. Multiple sets of impeller blades 130 are provided between the upper impeller cover 110 and the lower impeller cover 120, and reinforcing plates 140 are welded between adjacent sets of impeller blades 130.

[0024] Each impeller blade 130 consists of a first single-sided blade 131 and a second single-sided blade 132. A positioning groove 133 is reserved on the side where the first single-sided blade 131 and the second single-sided blade 132 are in contact. Multiple sets of reinforcing ribs 135 that can enhance the bending resistance of the impeller blade 130 are fixed in the positioning groove 133. Each set of reinforcing ribs 135 is distributed in an X shape.

[0025] It is worth mentioning that the upper wheel cover 110 and the lower wheel cover 120 are provided with insertion slots 160 at the positions corresponding to each set of positioning parts 134. The positioning parts 134 can be welded to the edge of the insertion slots 160 by means of a spot welding machine.

[0026] The lower wheel cover 120 has a pre-drilled shaft disc mounting hole 170 at the shaft center position, and the shaft disc 150 is bolted into the shaft disc mounting hole 170.

[0027] Multiple sets of reinforcing ribs 135 are embedded in the positioning groove 133. Each set of reinforcing ribs 135 is made of high-strength stainless steel. Their X-shaped distribution structure is fixed to the inner wall of the positioning groove 133 by laser welding to form a grid support, which effectively disperses the stress on the blade and significantly improves the bending resistance and fatigue resistance. The mating surfaces of the first single-sided blade 131 and the second single-sided blade 132 are aligned, and the two sets of positioning parts 134 are also mated accordingly, so that the positioning groove 133 is precisely matched to complete the splicing. The impeller blade 130 is assembled to the impeller using the positioning parts 134. For the frame (that is, the position between the upper wheel cover 110 and the lower wheel cover 120), the positioning part 134 is first inserted into the insertion groove 160 of the upper wheel cover 110 and the lower wheel cover 120. Precision welding is then performed along the edge of the insertion groove 160 using a spot welding machine to ensure that the connection between the impeller blade 130 and the wheel cover is stable and without loosening. The reinforcing plate 140 welded between adjacent impeller blades 130 is made of corrosion-resistant alloy steel plate. During welding, a continuous weld process is used to cover the full height of the side of the impeller blade 130, further enhancing the cooperative anti-torsion ability between the blades.

[0028] In addition, multiple sets of impeller blades 130 are evenly distributed along the circumference of the lower impeller cover 120, and the multiple sets of impeller blades 130 constitute an impeller within the impeller frame.

[0029] Throughout the impeller assembly process, multiple sets of impeller blades 130 are distributed at equal intervals along the circumference of the lower impeller cover 120, forming an efficient airflow passage; the shaft disk 150 is fastened to the shaft disk mounting hole 170 by bolts, and the keyway design in its shaft hole 151 facilitates precise meshing with the drive shaft, ensuring dynamic balance during high-speed rotation.

[0030] Please refer to this carefully. Figure 5 The first single-sided blade 131 and the second single-sided blade 132 are provided with two sets of positioning parts 134 at their upper and lower ends. The positioning parts 134 are integrally cast with the first single-sided blade 131 and the second single-sided blade 132.

[0031] The one-piece molded single-sided blade and positioning component 134 enable a more precise and stable assembly effect, which not only improves the overall mechanical performance but also reduces the complexity and time cost of the assembly process. Through integrated manufacturing, the fit between the blade and the positioning component is tighter, thus ensuring the high efficiency and reliability of the equipment during operation.

[0032] Please refer to this carefully. Figure 3 and Figure 4 A shaft hole 151 is reserved at the axis position of the shaft disk 150, and a keyway is provided on the inner wall of the shaft hole 151.

[0033] The keyway design within the shaft hole 151 ensures precise meshing between the shaft disc 150 and the drive shaft, which improves the stability and efficiency of the transmission and effectively prevents equipment failures and damage caused by poor transmission.

[0034] In use, multiple sets of reinforcing ribs 135 are embedded in the positioning groove 133. Each set of reinforcing ribs 135 is made of high-strength stainless steel, and its X-shaped distribution structure is fixed to the inner wall of the positioning groove 133 by laser welding to form a grid support, effectively dispersing the stress on the blades and significantly improving bending resistance and fatigue resistance. The mating surfaces of the first single-sided blade 131 and the second single-sided blade 132 are aligned, and the two sets of positioning parts 134 are also mated, so that the positioning groove 133 is precisely matched to complete the splicing. The impeller blade 130 is assembled using the positioning parts 134. For the impeller frame (the position between the upper impeller cover 110 and the lower impeller cover 120), the positioning part 134 is first inserted into the insertion groove 160 of the upper impeller cover 110 and the lower impeller cover 120. Precision welding is then performed along the edge of the insertion groove 160 using a spot welding machine to ensure a stable and secure connection between the impeller blade 130 and the impeller cover. The reinforcing plate 140 welded between adjacent impeller blades 130 is made of corrosion-resistant alloy steel plate. A continuous weld process is used during welding to cover the entire height of the side of the impeller blade 130, further enhancing the coordinated anti-torsion capability between the blades.

[0035] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A high-strength impeller for a fiberglass fan, comprising an impeller body (100), characterized in that: The impeller body (100) includes an impeller frame composed of an upper impeller cover (110) and a lower impeller cover (120). Multiple sets of impeller blades (130) are provided between the upper impeller cover (110) and the lower impeller cover (120). A reinforcing plate (140) is welded between two adjacent sets of impeller blades (130). Each impeller blade (130) consists of a first single-sided blade (131) and a second single-sided blade (132). The side of the first single-sided blade (131) and the second single-sided blade (132) that are in contact with each other has a positioning groove (133). Multiple sets of reinforcing ribs (135) that can enhance the bending resistance of the impeller blade (130) are fixed in the positioning groove (133). Each set of reinforcing ribs (135) is distributed in an X shape.

2. The high-strength impeller for a fiberglass fan according to claim 1, characterized in that: The first single-sided blade (131) and the second single-sided blade (132) are provided with two sets of positioning parts (134) at their upper and lower ends. The positioning parts (134) are integrally cast with the first single-sided blade (131) and the second single-sided blade (132).

3. The high-strength impeller for a fiberglass fan according to claim 1, characterized in that: The upper wheel cover (110) and lower wheel cover (120) are provided with insertion slots (160) at positions corresponding to each set of positioning parts (134). The positioning parts (134) can be welded to the edge of the insertion slots (160) by means of a spot welding machine.

4. The high-strength impeller for a fiberglass fan according to claim 1, characterized in that: The lower wheel cover (120) has a pre-reserved shaft mounting hole (170) at the shaft center position, and the shaft disc (150) is bolted into the shaft mounting hole (170).

5. A high-strength FRP fan impeller according to claim 4, characterized in that: The shaft disk (150) has a pre-reserved shaft hole (151) at the axial position, and the inner wall of the shaft hole (151) is provided with a keyway.

6. The high-strength impeller for a fiberglass fan according to claim 1, characterized in that: Multiple sets of impeller blades (130) are evenly distributed along the circumference of the lower impeller cover (120), and the multiple sets of impeller blades (130) form an impeller within the impeller frame.

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