Motor auxiliary supporting device for built-in motor axial flow fan

Abstract

The utility model provides a motor auxiliary support device used for a built-in motor axial flow fan, which comprises a lap joint bearing component, a switching bearing component, an abutting matching component and a support pad fastening component, and can effectively support a fan inner cylinder through the design of the switching bearing component and the abutting matching component, so that the fan inner cylinder can be effectively supported, and the fan inner cylinder can be effectively supported. The supporting force of the fan inner cylinder to the motor is transmitted to the motor shell, the overall stability of the motor can be enhanced, the abutting end cap is connected to the switching supporting rod in a screwed mode through threads, and the installation position can be adjusted on the switching supporting rod so as to adapt to fan inner cylinders of different sizes or installation positions. The support gasket body can ensure that the position of the abutting end cap on the switching supporting rod is fixed, looseness or displacement of the abutting end cap is prevented, the stability of the whole supporting device is enhanced, vibration and noise generated when the fan operates can be reduced, the service life of the axial fan is prolonged, stress concentration generated by uneven loads of a motor can be reduced by reasonably distributing supporting force, and the service life of the axial fan is prolonged. And the safety of the whole axial fan is improved.

Description

Technical Field

[0001] The utility model relates to a blower, in particular to a motor auxiliary supporting device for an axial flow fan with a built-in motor. Background Art

[0002] Patent document CN214698431U discloses an axial flow fan, which includes a wind tube, a switched reluctance motor, an axial flow fan and an air guide cover. The switched reluctance motor is composed of a stator assembly, a rotor assembly and a front end cover. The axial flow fan is connected to the rotating shaft of the rotor assembly, and the axial flow fan is arranged close to the air guide cover. The front end cover and the wind tube are respectively fixed to the axial ends of the stator assembly. Compared with the overall independent installation structure of the motor of other traditional fans, the stator assembly is directly assembled into the wind tube, and the motor can be installed with only one end cover, which simplifies the motor installation structure, reduces the cost of the motor, and simplifies the assembly process. However, the motor of this axial flow fan is connected to the inner cylinder of the fan with a head flange and a tail cantilever structure, which has the problem of insufficient motor support rigidity and excessive load on the fan casing flange. Therefore, it is necessary to optimize its structure to overcome the above defects. Utility Model Content

[0003] The utility model aims to provide a motor auxiliary support device for an axial flow fan with a built-in motor, so as to improve the motor support structure strength of the axial flow fan.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A motor auxiliary support device for an axial flow fan with a built-in motor, comprising:

[0006] An overlapping load-bearing member, which is mounted on the motor housing through a fixed connection structure to form a load-bearing space inside the overlapping load-bearing member;

[0007] A transfer supporting member, which is installed on the overlapping bearing member through a movable connection structure and corresponds to the position of the fan inner cylinder, and the overlapping bearing member carries and positions the transfer supporting member;

[0008] An abutting and matching component, which is installed on the transfer supporting component through a movable connection structure, can adjust the installation position on the transfer supporting component, and is matched and abutted with the fan inner cylinder;

[0009] The support and tightening component is installed on the transition supporting component and cooperates with the abutment and matching component. The support and tightening component locks the position of the abutment and matching component on the transition supporting component, and the supporting force of the fan inner cylinder on the motor is transmitted by the overlapping load-bearing component, the transition supporting component and the abutment and matching component.

[0010] Specifically, the overlapping load-bearing components include:

[0011] The lap seat body is provided with a group and is arranged in sequence along the circumference of the motor housing. The inner ends are respectively welded to the surface of the motor housing, and the outer ends protrude radially to the outside of the motor housing. A bearing recess is respectively provided at the outer end of each lap seat body.

[0012] The transfer supporting components include:

[0013] A transfer support rod, wherein a group of transfer support rods are provided, each transfer support rod is sequentially arranged along the circumference of the motor housing, the inner ends of the transfer support rods are respectively screwed into the bearing recesses through threads, and the outer ends thereof extend along the radial direction of the motor housing toward the inner cylinder of the fan;

[0014] A support tray piece is provided in a group, each support tray piece is formed on the outer wall of the transfer support rod, extends along the circumference of the transfer support rod, and protrudes radially to the outside of the transfer support rod, and the outer end of the lap seat body is abutted against the inner end of the support tray piece.

[0015] The abutment fitting components include:

[0016] The abutting end cap is provided in a group, the inner end of each abutting end cap is respectively screwed to the outer end of the transfer support rod through a thread, the installation position can be adjusted on the transfer support rod, and the outer end thereof is respectively abutted against the inner wall of the fan inner tube.

[0017] The support and tightening components include:

[0018] A support washer ring body is provided with a group of support washer ring bodies, each of which is divided into two parts and is respectively buckled on the outer wall of the transfer support rod, the inner end of which is abutted against the outer end of the supporting tray, and the outer end of which is abutted against the inner end of the abutting end cap. The support washer ring body locks the position of the abutting end cap on the transfer support rod, and the radial supporting force of the fan inner cylinder on the motor is transmitted by the abutting end cap, the transfer support rod and the lap seat body.

[0019] In one embodiment of the present invention, the support pad tightening member further comprises:

[0020] The tightening ribs extend along the circumference of the support washer ring body and are tied to the outer wall of the support washer ring body to tighten and position the support washer ring body.

[0021] In one embodiment of the utility model, each support washer ring body has a positioning recess on its outer wall, which extends along the circumference of the support washer ring body and is recessed radially inside the support washer ring body. The tightening ribs are embedded in the positioning recesses, and the tightening ribs are positioned by the positioning recesses.

[0022] The advantages of the utility model are:

[0023] The motor auxiliary support device can effectively support the fan inner cylinder by designing an adapter supporting component and an abutting matching component, and transmit the supporting force of the fan inner cylinder on the motor to the motor casing, thereby enhancing the overall stability of the motor; the abutting end cap is screwed onto the adapter support rod by a thread, and the installation position can be adjusted on the adapter support rod to adapt to fan inner cylinders of different sizes or installation positions, and has greater flexibility and adaptability; the support washer ring body can ensure that the abutting end cap is fixed in position on the adapter support rod to prevent it from loosening or shifting, further enhancing the stability of the entire support device, reducing vibration and noise during fan operation, and increasing the service life of the axial flow fan; and by reasonably distributing the supporting force, the device can reduce the stress concentration of the motor caused by uneven load, reduce the risk of motor damage, and improve the safety of the entire axial flow fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a motor auxiliary support device for an axial flow fan with a built-in motor proposed by the utility model;

[0025] Figure 2 It is a structural schematic diagram of the lap joint seat body;

[0026] Figure 3 It is a structural schematic diagram of the transfer support rod;

[0027] Figure 4 is a schematic diagram of the structure of the abutment end cap;

[0028] Figure 5 It is a structural schematic diagram of the support washer ring body. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0030] like Figure 1 to Figure 5As shown, the motor auxiliary support device for the built-in motor axial flow fan proposed by the utility model includes an overlapping load-bearing component, a transition supporting component, a mating component and a support and tightening component. The overlapping load-bearing component is installed on the motor housing through a fixed connection structure to form a load-bearing space inside the motor housing. The transition supporting component is installed on the overlapping load-bearing component through a movable connection structure and corresponds to the position of the fan inner cylinder. The overlapping load-bearing component carries and positions the transition supporting component. The mating component is installed on the transition supporting component through a movable connection structure, and the installation position can be adjusted on the transition supporting component, and the component is mated and mated with the fan inner cylinder. The support and tightening component is installed on the transition supporting component and cooperates with the mating component. The support and tightening component locks the position of the mating component on the transition supporting component. The overlapping load-bearing component, the transition supporting component and the mating component transmit the supporting force of the fan inner cylinder on the motor.

[0031] In this embodiment, the lap joint load-bearing component includes a lap joint seat body 100, which is provided in a group and arranged in sequence along the circumference of the motor housing A. The inner ends thereof are respectively welded to the surface of the motor housing, and the outer ends thereof protrude radially toward the outside of the motor housing, and load-bearing recesses are respectively provided at the outer ends of each lap joint seat body.

[0032] The transfer supporting member includes a transfer support rod 210 and a bearing tray 220. There are four transfer support rods, each of which is arranged in sequence along the circumference of the motor housing. The inner ends of the transfer support rods are screwed into the bearing recesses through threads, and the outer ends extend toward the inner cylinder of the fan along the radial direction of the motor housing. There is a group of bearing trays, each of which is formed on the outer wall of the transfer support rod, extends along the circumference of the transfer support rod, and protrudes radially toward the outside of the transfer support rod, and the outer end of the lap seat body is abutted against the inner end of the bearing tray.

[0033] The abutting matching component includes an abutting end cap 300, which is provided with four pieces. The inner end of each abutting end cap is screwed to the outer end of the transfer support rod through a thread, and the installation position can be adjusted on the transfer support rod. The outer end thereof abuts against the inner wall of the fan inner tube B.

[0034] The support gasket clamping component includes a support gasket ring body 410, which is provided with four parts. Each support gasket ring body is respectively divided into two parts and is respectively buckled on the outer wall of the transfer support rod. The inner end thereof abuts against the outer end of the supporting plate, and the outer end thereof abuts against the inner end of the abutting end cap. The support gasket ring body locks the position of the abutting end cap on the transfer support rod, and the radial supporting force of the fan inner cylinder on the motor is transmitted by the abutting end cap, the transfer support rod and the lap seat body.

[0035] In this embodiment, before installing the support washer ring body, it is necessary to measure the distance between the support plate and the abutting end cap, and then adjust the thickness of the support washer ring body so that it can fill the gap between the support plate and the abutting end cap.

[0036] In this embodiment, the support gasket tightening component also includes a tightening rib 420, which extends along the circumference of the support gasket ring body and is tied to the outer wall of the support gasket ring body to tighten and position the support gasket ring body in the circumferential direction.

[0037] In this embodiment, each support washer ring body has a positioning recess 411 on its outer wall, which extends along the circumference of the support washer ring body and is recessed radially inside the support washer ring body. The tightening ribs are embedded in the positioning recess, and the tightening ribs are axially positioned by the positioning recess.

[0038] In the description of the present utility model, it should be noted that when terms such as "upper", "lower", "inner", "outer", "left", "right" and the like indicating orientation or positional relationship appear, it should be understood that the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, when terms such as "first" and "second" appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "setting", and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A motor auxiliary support device for an axial flow fan with a built-in motor, characterized in that: include: An overlapping load-bearing member, which is mounted on the motor housing through a fixed connection structure to form a load-bearing space inside the overlapping load-bearing member; A transfer supporting member, which is installed on the overlapping bearing member through a movable connection structure and corresponds to the position of the fan inner cylinder, and the overlapping bearing member carries and positions the transfer supporting member; An abutting and matching component, which is installed on the transfer supporting component through a movable connection structure, can adjust the installation position on the transfer supporting component, and is matched and abutted with the fan inner cylinder; The support and tightening component is installed on the transition supporting component and cooperates with the abutment and matching component. The support and tightening component locks the position of the abutment and matching component on the transition supporting component, and the supporting force of the fan inner cylinder on the motor is transmitted by the overlapping load-bearing component, the transition supporting component and the abutment and matching component.

2. A motor auxiliary support device for an axial flow fan with a built-in motor according to claim 1, characterized in that: The overlapped load-bearing members include: The lap seat body is provided with a group and is arranged in sequence along the circumference of the motor housing. The inner ends are respectively welded to the surface of the motor housing, and the outer ends protrude radially to the outside of the motor housing. A bearing recess is respectively provided at the outer end of each lap seat body.

3. A motor auxiliary support device for an axial flow fan with a built-in motor according to claim 2, characterized in that: The transfer supporting components include: A transfer support rod, wherein a group of transfer support rods are provided, each transfer support rod is sequentially arranged along the circumference of the motor housing, the inner ends of the transfer support rods are respectively screwed into the bearing recesses through threads, and the outer ends thereof extend along the radial direction of the motor housing toward the inner cylinder of the fan; A support tray piece is provided in a group, each support tray piece is formed on the outer wall of the transfer support rod, extends along the circumference of the transfer support rod, and protrudes radially to the outside of the transfer support rod, and the outer end of the lap seat body is abutted against the inner end of the support tray piece.

4. The motor auxiliary support device for an axial flow fan with a built-in motor according to claim 3, characterized in that: The abutment fitting components include: The abutting end cap is provided in a group, the inner end of each abutting end cap is respectively screwed to the outer end of the transfer support rod through a thread, and the outer end thereof is respectively abutted against the inner wall of the inner tube of the fan.

5. The motor auxiliary support device for an axial flow fan with a built-in motor according to claim 4, characterized in that: The support and tightening components include: The support washer ring body is provided with a group, each support washer ring body is respectively divided into two parts, and is respectively buckled on the outer wall of the transfer support rod, the inner end of which is abutted against the outer end of the support tray plate, and the outer end of which is abutted against the inner end of the abutting end cap.

6. A motor auxiliary support device for an axial flow fan with a built-in motor according to claim 5, characterized in that: The support and tightening member also includes: The tightening ribs extend along the circumference of the support washer ring body and are tied to the outer wall of the support washer ring body to tighten and position the support washer ring body.

7. The motor auxiliary support device for an axial flow fan with a built-in motor according to claim 6, characterized in that: The outer wall of each support washer ring body is respectively provided with a positioning notch, which extends along the circumference of the support washer ring body and is recessed inside the support washer ring body in the radial direction, and the tightening ribs are embedded in the positioning notch.

Images