Sealing cover of fan motor

Abstract

The utility model provides a sealing cover of a fan motor, and belongs to the technical field of fans. The problem that an existing sealing cover is poor in universality is solved. The sealing cover of the fan motor comprises a cover body and a shaft head, the center of the cover body is provided with a fixing hole, the inner end of the shaft head is embedded and fixedly connected in the fixing hole to enable the cover body and the shaft head to be fixedly connected, the outer end of the shaft head is provided with external threads, and the middle of the shaft head is provided with a long-strip-shaped pin key groove which is arranged in the axial direction of the shaft head. The sealing cover of the fan motor has the advantages that different blades can be installed on the sealing cover, and the universality is good.

Description

TECHNICAL FIELD

[0001] The utility model belongs to fan technical field relates to a fan motor's cover. BACKGROUND

[0002] Industrial fan is a large fan specially designed for industrial environment, mainly used for providing air circulation and cooling in factories, warehouses, workshops and other places, improving the ventilation and temperature of the working environment, so as to improve the air quality and the comfort of employees. Industrial fan includes motor and blade, motor includes cover, blade is installed to cover.

[0003] The existing fan motor cover, for example, Chinese patent document discloses a negative pressure fan cover [patent number: 202420488140.7; application publication number: CN221742890U], including cover body, the outer wall of cover body is convex in the middle to form the installation platform for installing the blade, the middle of installation platform is equipped with positioning ring, the outer circle of positioning ring is arranged with a plurality of convex edges, the convex edges of the outer circle of positioning ring are equipped with a plurality of positioning convex rings, and the convex edges are equipped with fan blade mounting hole.

[0004] The cover of this structure, the inner end of the blade is attached to the installation platform, and the bolt is arranged in the blade and the fan blade mounting hole, so that the blade is fixedly connected with the cover body, and the rotation of the cover drives the rotation of the blade. However, the cover of this structure, the inner end of the blade needs to be matched with the structure of the positioning ring, the convex edge and the positioning convex ring, and only the blade made of glass steel can be installed, so that the cover of this structure can only install one kind of blade, and the universality is poor. SUMMARY

[0005] The utility model discloses a fan motor cover to solve the technical problem of how to make the cover can install different blades, and the universality is good.

[0006] The utility model discloses a fan motor cover, including cover body, its characterized in that, the cover still includes shaft head, the center of cover body has fixed hole, the inner end of shaft head is embedded and is fixedly connected in fixed hole so that cover body and shaft head are fixedly connected, the outer end of shaft head has outer thread, the middle of shaft head has the pin key groove that is long strip shaped and is arranged along the axial direction of shaft head.

[0007] The shaft head and the cover body are fixedly connected, the integrated cover body, the blades are integrated assembled on the sleeve, the sleeve is sleeved on the shaft head, the pin is embedded in the pin slot, the pin makes the shaft head and the sleeve circumferentially positioned, finally the nut is screwed on the outer end of the shaft head, the sleeve is axially positioned, thereby realizing the installation of the blades, since the blades can be integrated on the sleeve and then fixedly connected with the cover body, different sleeves can be selected to install different blades, the cover body can drive different blades to rotate, and the cover body has good versatility.

[0008] In the cover body of the fan motor, the outer peripheral wall of the inner end of the shaft head has a plurality of strip-shaped grooves arranged along the axial direction of the shaft head and spaced apart and at least one annular groove arranged along the circumferential direction of the shaft head, the cover body is formed by casting from aluminum material, and the cover body is partially embedded in the strip-shaped grooves and the annular groove to fixedly connect the cover body and the shaft head. During processing, the shaft head is placed in a processing position, and then the cover body is cast, so that the aluminum liquid flows into the strip-shaped grooves and the annular groove. After the aluminum liquid is cooled, the cover body is naturally formed, and the cover body and the shaft head are fixedly connected by clamping. The cover body is made of aluminum material, so that the heat dissipation effect of the cover body is good.

[0009] In the cover body of the fan motor, the circumferential edge of the fixing hole is arranged in protrusion along the axial direction of the shaft head. This structure increases the strength of the connection between the cover body and the shaft head, thereby improving the firmness of the cover body.

[0010] In the cover body of the fan motor, the outer diameter of the inner end of the shaft head is larger than the outer diameter of the rest of the shaft head. This structure increases the contact area between the shaft head and the cover body, thereby improving the firmness of the cover body.

[0011] In the cover body of the fan motor, the end face of the inner end of the shaft head is recessed to form a bearing hole for installing a bearing.

[0012] In the cover body of the fan motor, the shaft head is made of iron material. The shaft head has sufficient strength.

[0013] In the cover body of the fan motor, the outer side wall of the cover body has a plurality of first reinforcing ribs arranged at intervals, and the first reinforcing ribs radiate towards the circumferential edge of the cover body with the fixing hole as the center. The arrangement of the first reinforcing ribs makes the cover body have sufficient strength.

[0014] In the cover body of the fan motor, the inner side wall of the cover body has a plurality of second reinforcing ribs arranged at intervals, and the second reinforcing ribs radiate towards the circumferential edge of the cover body with the fixing hole as the center. The arrangement of the second reinforcing ribs makes the cover body have sufficient strength.

[0015] Compared with the prior art, the cover body of the fan motor provided by the utility model has the following advantages:

[0016] 1、 The cover includes a shaft head, through which different blades can be installed, so that the cover can drive different blades to rotate, and the versatility is good.

[0017] 2、 The cover body is made of aluminum material, and the heat dissipation effect is good. The shaft head is made of iron material, and the strength is high.

[0018] 3、 The cover body and the shaft head are connected and fixed by pouring and cooling the cover body, and the connection and fixation are convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of the overall structure of the cover.

[0020] Figure 2 is a schematic view of the overall structure of the shaft head.

[0021] Figure 3 is a schematic view of the overall structure of the cover body.

[0022] In the figure, 1 is a cover body; 11 is a fixing hole; 2 is a shaft head; 21 is an external thread; 22 is a pin key groove; 23 is a strip-shaped groove; 24 is an annular groove; 25 is a bearing hole; 3 is a first reinforcing rib; and 4 is a second reinforcing rib. DETAILED DESCRIPTION

[0023] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0024] As shown in Figure 1 , the cover of the fan motor includes a cover body 1 and a shaft head 2. The cover body 1 is made of aluminum material and is formed by casting. The shaft head 2 is made of iron material.

[0025] As shown in Figure 2 , the outer diameter of the inner end of the shaft head 2 is larger than that of the rest of the shaft head 2. The end face of the inner end of the shaft head 2 is recessed to form a bearing hole 25 for installing a bearing. The outer end of the shaft head 2 has an external thread 21, and the middle of the shaft head 2 has a pin key groove 22 in the axial direction of the shaft head 2 and in the shape of a long strip. In this embodiment, the outer peripheral wall of the inner end of the shaft head 2 has four strip-shaped grooves 23 arranged in the axial direction of the shaft head 2 and spaced apart, and an annular groove 24 arranged in the circumferential direction of the shaft head 2. In actual production, the number of strip-shaped grooves 23 can be three or six, and the number of annular grooves 24 can be two or three.

[0026] As shown in Figure 3As shown, the center of the cover 1 has a fixing hole 11, the circumferential edge of the fixing hole 11 is arranged along the axial direction of the shaft head 2. In this embodiment, the outer side wall of the cover 1 has twenty first reinforcing ribs 3 arranged at intervals, the first reinforcing ribs 3 radiate towards the circumferential edge of the cover 1 with the fixing hole 11 as the center, and the inner side wall of the cover 1 has ten second reinforcing ribs 4 arranged at intervals, the second reinforcing ribs 4 radiate towards the circumferential edge of the cover 1 with the fixing hole 11 as the center. In actual production, the number of the first reinforcing ribs 3 can be ten or thirty, and the number of the second reinforcing ribs 4 can be five or fifteen.

[0027] During processing, the shaft head 2 is placed in the processing position, and then the cover 1 is cast, so that the aluminum liquid flows into the strip-shaped groove 23 and the annular groove 24. After the aluminum liquid cools, the cover 1 is naturally formed, and the cover 1 and the shaft head 2 are clamped and fixedly connected with each other, that is, the inner end of the shaft head 2 is embedded and fixedly connected in the fixing hole 11, and part of the cover 1 is embedded in the strip-shaped groove 23 and the annular groove 24 to fixedly connect the cover 1 and the shaft head 2.

[0028] During installation of the blade, the blade is first installed on the sleeve, and then the sleeve is sleeved on the shaft head 2. The sleeve is locked through the pin key and the nut, and the cover is rotated, so that the blade can be rotated through the sleeve.

[0029] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

[0030] Although the terms cover 1, fixing hole 11, shaft head 2, external thread 21, pin key groove 22, strip-shaped groove 23, annular groove 24, bearing hole 25, first reinforcing rib 3, and second reinforcing rib 4 are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any additional limitation is contrary to the spirit of the present application.

Claims

1. A cover for a fan motor comprising a cover body (1), characterized in that, The cover further comprises a shaft head (2), the center of the cover body (1) has a fixing hole (11), the inner end of the shaft head (2) is embedded into the fixing hole (11) to fix the cover body (1) and the shaft head (2), the outer end of the shaft head (2) has an outer thread (21), the middle of the shaft head (2) has a long strip-shaped pin key groove (22) arranged along the axial direction of the shaft head (2).

2. A fan motor cover according to claim 1, wherein The outer peripheral wall of the inner end of the shaft head (2) has a plurality of strip-shaped grooves (23) arranged along the axial direction of the shaft head (2) and at intervals and at least one annular groove (24) arranged along the circumferential direction of the shaft head (2), the cover body (1) is formed by casting aluminum material, and the cover body (1) is partially embedded into the strip-shaped grooves (23) and the annular groove (24) to fix the cover body (1) and the shaft head (2).

3. A fan motor cover according to claim 1 or 2, wherein The circumferential edge of the fixing hole (11) is arranged protruding along the axial direction of the shaft head (2).

4. A fan motor cover according to claim 1 or 2, wherein The outer diameter of the inner end of the shaft head (2) is larger than the outer diameter of the rest of the shaft head (2).

5. A fan motor cover according to claim 1 or 2, wherein The end face of the inner end of the shaft head (2) is recessed to form a bearing hole (25) for installing a bearing.

6. A fan motor cover according to claim 1 or 2, wherein The shaft head (2) is made of iron material.

7. A fan motor cover according to claim 1 or 2, wherein The outer side wall of the cover body (1) has a plurality of first reinforcing ribs (3) arranged at intervals, the first reinforcing ribs (3) radiate towards the circumferential edge of the cover body (1) with the fixing hole (11) as the center.

8. A fan motor cover according to claim 1 or 2, wherein The inner side wall of the cover body (1) has a plurality of second reinforcing ribs (4) arranged at intervals, the second reinforcing ribs (4) radiate towards the circumferential edge of the cover body (1) with the fixing hole (11) as the center.

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