Bearing mounting structure of vortex fan

Abstract

The utility model belongs to the technical field of fans, and particularly relates to a bearing mounting structure of a vortex fan, which comprises a driving motor, a motor shaft, a bearing and a bearing, the pump body is connected to one side of the driving motor, and an impeller connected with the motor shaft is arranged in the pump body; the mounting seat is arranged on the pump body, a bearing is mounted in the mounting seat, the motor shaft is provided with an extension end which penetrates through the pump body and is positioned in the mounting seat, and the extension end is connected with the bearing in the mounting seat; a mounting groove used for placing the bearing is formed in the mounting seat, a pressing ring is fixed on the mounting groove, and the pressing ring is used for being limited on the end face of the bearing so as to fix the bearing in the mounting groove. By arranging the pressing ring structure, it is guaranteed that the bearing is installed stably, safely and reliably, the overall structure is simple and compact, the manufacturing cost is low, and maintenance is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model belongs to fan technical field, especially whirl fan's bearing installation structure. BACKGROUND

[0002] Whirl fan is a kind of new air source equipment, several tens of fan blades are arranged on the impeller, so that the air in the impeller is affected by centrifugal force when the impeller rotates, enters the annular chamber in the pump body, then returns to the impeller, and reciprocates in this way, so that the air is uniformly accelerated, and finally leaves the pump body with extremely high energy.

[0003] Referring to the whirl fan disclosed in Chinese utility model CN220286005U, comprising pump body, impeller and motor, the pump body is composed of volute one and volute two, the impeller is installed in the pump body, and the impeller and the pump body cooperate to form an annular air chamber. Motor shaft is arranged in the impeller, and the end of the motor shaft is provided with a bearing. The bearing in the utility model is directly installed in the pump body. When the motor shaft on the impeller needs to be extended, the bearing on the motor shaft is not easy to install. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of whirl fan's bearing installation structure.

[0005] The utility model is realized as follows:

[0006] The bearing installation structure of whirl fan includes:

[0007] Drive motor, motor shaft is rotationally arranged in it;

[0008] Pump body is connected on the side of the drive motor, and the impeller connected with the motor shaft is arranged in the pump body;

[0009] Mounting seat is arranged on the pump body, bearing is installed in the mounting seat, the motor shaft has extension end in the mounting seat and passes through the pump body, and the extension end is connected with the bearing in the mounting seat;

[0010] Mounting groove for placing the bearing is arranged in the mounting seat, and compression ring is fixed in the mounting groove, and the compression ring is used to press the outer ring of bearing to fix the bearing in the mounting groove.

[0011] Further, the compression ring is provided with a collar portion on one side, and the mounting groove is provided with a ring groove portion formed on the outer edge of the bearing, when the compression ring is fixed on the mounting groove, the collar portion is located in the ring groove portion.

[0012] Further, the inner edge of the bottom in the mounting seat is provided with a plurality of compression ring mounting blocks, and the mounting groove for installing the bearing is formed between the plurality of compression ring mounting blocks.

[0013] Further, a plurality of notched grooves are formed on the pressing ring mounting block.

[0014] Further, a connecting pressing sleeve is arranged on the extension end, the bearing is fixed on the extension end and abuts on one end of the connecting pressing sleeve, the other end of the connecting pressing sleeve is provided with a pressing mounting boss, the pressing mounting boss is located in the pump body and abuts on the impeller.

[0015] Further, a heat dissipation fan blade is further arranged on the extension end, the heat dissipation fan blade is driven to rotate by the motor shaft, and the heat dissipation fan blade is used for dissipating heat for the mounting seat through rotation.

[0016] Further, a plurality of heat dissipation ventilation openings are formed on the outer wall of the mounting seat.

[0017] Further, a sleeve hole is arranged at the center of the heat dissipation fan blade, the heat dissipation fan blade is sleeved on the extension end through the sleeve hole to be connected with the extension end.

[0018] Further, the mounting seat cover is arranged on one side of the pump body, a connecting boss is arranged on the end edge of the mounting seat connected with the pump body, and the connecting boss is provided with a corresponding connecting hole in the pump body.

[0019] Compared with the prior art, the utility model has the advantages of the following:

[0020] 1. The utility model discloses a pressing ring structure, which can ensure stable and safe bearing installation, simple and compact overall structure, low manufacturing cost and convenient maintenance.

[0021] 2. The air flow generated by the heat dissipation fan blade can reduce the temperature of the mounting seat and the bearing by about 10-15 DEG C compared with the structure without the fan blade, effectively prevents the aging of lubricating grease, the wear of rolling elements and the jamming phenomenon caused by high temperature of the bearing, and improves the operation reliability and service life of the whole eddy current fan. DRAWINGS

[0022] Figure 1 It is a structural schematic view of the eddy current fan.

[0023] Figure 2 It is a sectional schematic view of the eddy current fan.

[0024] Figure 3 It is a sectional schematic view of the mounting seat in the eddy current fan.

[0025] Figure 4 It is an explosion schematic view of the motor shaft and the mounting seat.

[0026] Figure 5 It is an explosion schematic view of the mounting seat.

[0027] Figure 6 is the internal schematic view of the mounting seat.

[0028] Meaning represented by the figure mark:

[0029] 1, drive motor; 11, motor shaft; 12, extension end; 13, rotor; 14, stator;

[0030] 2, pump body; 21, impeller;

[0031] 3, mounting seat; 31, vent; 32, connecting boss; 33, connecting hole; 34, mounting groove; 341, ring groove part; 35, compression ring; 351, sleeve part; 36, compression ring mounting block; 361, notch groove; 37, connecting compression sleeve; 371, press-fitting boss;

[0032] 4, bearing; 5, heat dissipation fan blade; 51, sleeve hole; DETAILED DESCRIPTION

[0033] The utility model will be further described in combination with specific embodiments:

[0034] The bearing mounting structure of the vortex fan comprises a drive motor 1, a pump body 2, a mounting seat 3, a bearing 4 and a heat dissipation fan blade 5. The drive motor 1 has a shell, and a rotor 13 and a stator 14 are arranged in the shell. The rotor 13 is connected with a motor shaft 11. The pump body 2 is connected to one side of the drive motor 1. The pump body 2 is provided with an impeller 21 connected with the motor shaft 11. One end of the motor shaft 11 penetrates through the pump body 2 to the outside of the pump body 2, and the mounting seat 3 is arranged on the motor shaft 11. The bearing 4 is arranged in the mounting seat 3. The motor shaft 11 has an extension end 12 penetrating through the pump body 2 and located in the mounting seat 3. The extension end 12 is connected with the bearing 4 in the mounting seat 3. The heat dissipation fan blade 5 is fixed on the extension end 12 and is driven to rotate by the motor shaft 11, so as to dissipate heat for the mounting seat 3.

[0035] Reference Figure 2 、 3 A through hole is arranged on one side of the pump body 2. The motor shaft 11 penetrates through the through hole. The extension end 12 is located at the end of the motor shaft 11 and on the outside of the pump body 2. The mounting seat 3 is arranged outside the through hole and on one side of the pump body 2. A connecting boss 32 is arranged on the end edge of the mounting seat 3 connected with the pump body 2. The connecting boss 32 is integrally formed with the mounting seat 3. Corresponding connecting holes 33 are arranged on the connecting boss 32 and the pump body 2. The connecting holes 33 are threaded holes. During installation, the connecting boss 32 is opposite to the connecting holes 33 on the pump body 2. Screws are arranged in the connecting holes 33 to fix the mounting seat 3 on the pump body 2.

[0036] The mounting seat 3 is provided with a mounting groove 34 for placing the bearing 4, the mounting groove 34 is used for mounting the bearing 4, the extended end 12 of the motor shaft 11 is connected with the bearing 4 in the mounting groove 34, and the cooling fan blade 5 is arranged on the extended end 12 and opposite to the bearing 4. When the motor rotates, the motor shaft 11 rotates at a high speed to drive the cooling fan blade 5 to rotate synchronously, the cooling fan blade 5 forms a negative pressure area outside the mounting seat 3 when rotating, cold air is sucked from the outside into the mounting seat 3, and the cold air absorbs heat generated by the bearing 4 when passing around the bearing 4. The air flow generated by the cooling fan blade 5 can reduce the temperature of the mounting seat 3 and the bearing 4 by about 10-15 DEG C compared with the structure without the fan blade, effectively prevents the aging of lubricating grease, the wear and seizure of rolling elements caused by high temperature of the bearing 4, and improves the operation reliability and service life of the whole eddy current fan.

[0037] As shown in Figure 3 , 4 , the mounting seat 3 is provided with a plurality of heat dissipation ventilation openings 31 on the side, the ventilation openings 31 are strip-shaped and uniformly arranged on the outer wall of the mounting seat 3, the cooling fan blade 5 sucks cold air for heat dissipation through the ventilation openings 31.

[0038] Further, the center of the cooling fan blade 5 is provided with a sleeve hole 51, the cooling fan blade 5 is sleeved and connected to the extended end 12 of the motor shaft 11 through the sleeve hole 51. The sleeve hole 51 is circular and can be directly sleeved on the extended end 12 and fixed through a fastening screw, so that the installation is convenient and fast.

[0039] As shown in Figure 4 , 5 , the mounting groove 34 is fixed with a pressing ring 35, the pressing ring 35 is used for pressing the outer ring of the bearing 4 to fix the bearing 4 in the mounting groove 34. Specifically, the bottom inner side of the mounting seat 3 is provided with a plurality of pressing ring mounting blocks 36, the pressing ring mounting blocks 36 are arc-shaped, a plurality of the pressing ring mounting blocks 36 are sequentially connected to form a ring structure to form a circular mounting groove 34, the pressing ring 35 is fixed on the mounting groove 34 and the outer side of the pressing ring 35 is upwardly and downwardly abutted with the pressing ring mounting blocks 36, the pressing ring 35 is fixed on the pressing ring mounting blocks 36 through a fastener and the outer ring of the bearing 4 is pressed by the pressing ring 35 to fix the bearing 4 in the mounting groove 34. The structure of the plurality of pressing ring mounting blocks 36 can effectively reduce the actual material of the whole mounting seat 3 and save the cost, and the pressing ring mounting blocks 36 are provided with a plurality of notch grooves 361 to further save the cost. In summary, the pressing ring 35 structure is arranged to ensure that the bearing 4 is stably and safely installed, the whole structure is simple and compact, the manufacturing cost is low, and the maintenance is convenient.

[0040] Further, the pressing ring 35 is provided with a collar portion 351 on one side, and the mounting groove 34 is provided with a ring groove portion 341 formed on the outer edge of the bearing 4, when the pressing ring 35 is fixed on the mounting groove 34, the collar portion 351 is located in the ring groove portion 341. Figure 4 , 5 As shown in the utility model, the size of the mounting groove 34 is slightly larger than the size of the bearing 4, when the bearing 4 is installed in the mounting groove 34, the ring groove portion 341 is formed on the outer edge of the bearing 4, and the collar portion 351 is arranged on the axial surface of the pressing ring 35, during installation, the collar portion 351 is directly inserted into the ring groove portion 341, and the bearing 4 is radially positioned by the collar portion 351.

[0041] Further, the extension end 12 is provided with a connecting pressing sleeve 37, the bearing 4 is fixed on the extension end 12 and abuts on one end of the connecting pressing sleeve 37, the other end of the connecting pressing sleeve 37 is provided with a pressing boss 371, and the pressing boss 371 is located in the pump body 2 and abuts against the impeller 21. Figure 2 As shown in the utility model, the pressing sleeve abuts against the inner ring of the bearing 4, the bearing 4 limits the pressing sleeve, so that the pressing sleeve can press the side surface of the impeller 21, thereby realizing the positioning and fixing of the impeller 21, and correspondingly, the cooling fan blade 5 is sleeved on the connecting pressing sleeve 37.

[0042] The above embodiment is only a preferred embodiment of the utility model, and does not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

[0043] It should be known that the structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and do not define the limited conditions of the implementation of the utility model, so they do not have the substantial meaning in technology, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the range covered by the technical content disclosed by the utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the specification are only for clear description, and not for limiting the implementation scope of the utility model, the change or adjustment of relative relationship, without substantially changing the technical content, is also regarded as the implementation scope of the utility model.

[0044] It should also be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can also be present. In addition, the term "connected" and / or "coupled" to the element can also be used herein and can mean the element is either directly connected to the other element or an intervening element can be present.

[0045] In addition, the terms "first", "second", etc. are used herein only to describe various embodiments and do not imply or suggest any relative importance of the indicated technical features or imply that the indicated technical features are limited to a certain number of technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of a person skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

Claims

1. A bearing mounting structure for a vortex blower, characterized by, The utility model relates to a pump body (2) is connected in drive motor (1) one side, the pump body (2) in be equipped with with motor shaft (11) link's impeller (21) in drive motor (1) one side, the utility model discloses a bearing (4) is installed in the mounting seat (3) that is arranged on the pump body (2), and the motor shaft (11) has the extension end (12) that passes through the pump body (2) and is located in the mounting seat (3), and the extension end (12) is connected with the bearing (4) in the mounting seat (3). The utility model discloses a bearing (4) is fixed in the mounting groove (34) for placing the bearing (4) in the mounting seat (3), and the pressure ring (35) for pressing the outer ring of bearing (4) is fixed in the mounting groove (34), and the pressure ring (35) is used to press and fix the bearing (4) in the mounting groove (34). The utility model discloses a sleeve ring part (351) is equipped on one side of the pressure ring (35), and the ring groove part (341) is formed on the outer rim of the bearing (4) in the mounting groove (34), when the pressure ring (35) is fixed on the mounting groove (34), the sleeve ring part (351) is located in the ring groove part (341). The utility model discloses a plurality of pressure ring mounting blocks (36) are equipped in the bottom inner rim of the mounting seat (3), and the mounting groove (34) for installing the bearing (4) is formed between the plurality of pressure ring mounting blocks (36). The utility model discloses a plurality of notched grooves (361) are opened in the pressure ring mounting block (36).

2. The bearing mounting structure for a vortex fan according to claim 1, characterized by: The utility model discloses a connecting pressure sleeve (37) is equipped on the extension end (12), and the inner ring of the bearing (4) is fixed on the extension end (12) and is abutted on one end of the connecting pressure sleeve (37), and the other end of the connecting pressure sleeve (37) is equipped with the pressure equipment boss (371), and the pressure equipment boss (371) is located in the pump body (2) and is abutted with the impeller (21).

3. The bearing mounting structure for a vortex fan according to claim 2, characterized by: The utility model discloses a radiating fan blade (5) is fixed on the extension end (12), and the radiating fan blade (5) is driven to rotate by the motor shaft (11), and is used to radiate the mounting seat (3) through the rotation of the radiating fan blade (5).

4. The bearing mounting structure for a vortex fan according to claim 3, characterized by: The utility model discloses a plurality of radiating ventilation openings (31) are opened in the outer wall of the mounting seat (3).

5. The bearing mounting structure for a vortex fan according to any one of claims 1 to 4, characterized in that: The utility model discloses a sleeve joint hole (51) is equipped in the center of the radiating fan blade (5), and the radiating fan blade (5) is sleeved on the extension end (12) through the sleeve joint hole (51) to be connected with the extension end (12).

6. The bearing mounting structure for a vortex fan according to claim 1, characterized by: The utility model discloses a mounting seat (3) is covered on one side of the pump body (2), and the connecting boss (32) is equipped on the end portion edge of the mounting seat (3) and the pump body (2) are connected, and the connecting boss (32) is equipped with the corresponding connecting hole (33) on the pump body (2).

7. The bearing mounting structure for a vortex fan according to claim 6, characterized by: ​ 8. The bearing mounting structure for a vortex fan according to claim 6, characterized by: ​ 9. The bearing mounting structure for a vortex fan according to claim 6, characterized by: ​

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