Air-cooled permanent magnet electric roller with novel flange device

Abstract

The utility model relates to an air-cooled permanent magnet electric roller with a novel flange device. The air-cooled permanent magnet electric roller comprises a main shaft; the stator is sleeved with the main shaft and comprises an air duct and a stator iron core, the stator iron core surrounds the air duct, and the air duct is recessed inwards from the end face to form a groove; the rotor comprises a rotor steel cylinder and bearings installed at the two ends of the rotor steel cylinder, and the bearings are connected with the air cylinder in a sleeving mode; the fixing seats are mounted at two ends of the spindle; the flange comprises a first fixing plate, a second fixing plate and a flexible gasket, the first fixing plate is fixedly connected with the fixing seat, the second fixing plate protrudes outwards from the end face to form a boss, the boss extends into the groove, and the flexible gasket is located between the second fixing plate and the air duct; in the assembling process, the flange is fixed to the fixing base through the bolt, after the boss is sleeved with the flexible gasket, the sealing effect is achieved in the mode that the fixing base extrudes the soft gasket, a gap exists between the flange and the air duct, rigid connection does not exist, pulling force cannot be transmitted to the flange, and stability is improved.

Description

Technical Field

[0001] This invention relates to the field of electric roller technology, and more particularly to an air-cooled permanent magnet electric roller with a novel flange device. Background Technology

[0002] The air-cooled permanent magnet electric drum is a type of permanent magnet synchronous electric drum that uses forced air cooling and is suitable for medium- and low-load, continuous operation conveying systems.

[0003] According to Chinese patent CN217335218U, an air-cooled stator assembly and its outer rotor electric drum are disclosed, including a main shaft, the end of which is fixedly connected to a fixed base; a plurality of axial stiffeners, which are equally spaced and fixed on the circumferential outer wall of the main shaft; a stator sleeve, the inner wall of which is fixedly connected to the top of the plurality of axial stiffeners; the length direction of the axial stiffeners is parallel to the axial direction of the main shaft.

[0004] However, the fixed seat and stator sleeve of this structure are rigidly connected. Although this connection can seal the air and prevent air leakage, due to the rigid connection, part of the tensile force on the drum body will be transmitted to the fixed seat through the flange device. The flange device is not strong enough to withstand this huge tensile force, which can easily cause the flange to deform and thus compromise the overall structural stability.

[0005] Therefore, it is necessary to develop an air-cooled permanent magnet electric roller with a novel flange device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a highly stable air-cooled permanent magnet electric drum with a novel flange device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wind-cooled permanent magnet electric drum with a novel flange device, comprising:

[0008] spindle;

[0009] The stator is sleeved with the main shaft. The stator includes a fan duct and a stator core. The stator core surrounds the fan duct, and the fan duct is recessed inward from the end face to form a groove.

[0010] The rotor includes a rotor steel cylinder and bearings installed at both ends of the rotor steel cylinder, the bearings being sleeved on the air duct;

[0011] Fixed seats are installed at both ends of the main shaft;

[0012] The flange includes a first fixing plate, a second fixing plate, and a flexible gasket. The first fixing plate is fixedly connected to the fixing seat. The second fixing plate protrudes outward from its end face to form a boss, which extends into the groove. The flexible gasket is located between the second fixing plate and the air duct.

[0013] Furthermore, the outer end face of the second fixing plate is disposed opposite to the end face of the air duct, and the boss is disposed around the inner end face of the second fixing plate.

[0014] Furthermore, the bottom of the flexible washer abuts against the boss, and its two side surfaces abut against the outer end face of the second fixing plate and the end face of the air duct, respectively.

[0015] Furthermore, the first fixing plate has a plurality of mounting holes penetrating its surface, and the outer end face of the first fixing plate is attached to the end face of the fixing seat, and is fixedly connected to the fixing seat by bolts or screws passing through the mounting holes.

[0016] Furthermore, the flange includes a connecting plate that connects the first fixing plate and the second fixing plate, with both ends of the connecting plate connected to the inner ring ends of the first fixing plate and the second fixing plate, respectively.

[0017] Furthermore, a reinforcing rib is provided between the first fixing plate and the second fixing plate. The bottom of the reinforcing rib is fixedly connected to the connecting plate, and its two ends are respectively fixedly connected to the opposite sides of the first fixing plate and the second fixing plate.

[0018] Furthermore, the outer ring end face of the second fixing plate is provided with a fixing buckle. One end of the fixing buckle is fixedly connected to the second fixing plate, and the other end extends radially away from the end face of the second fixing plate. The radially extending end of the fixing buckle forms an angle with the second fixing plate, and the flexible washer is disposed within this angle.

[0019] Furthermore, the flexible washer has a fixing groove formed by an inward recess from its surface, and the fixing buckle extends into the fixing groove.

[0020] Furthermore, the end face of the air duct has a fixing buckle and a flexible washer, and the fixing buckle fixes the flexible washer to the end face of the air duct.

[0021] Furthermore, the fixing buckle and flexible washer on the end face of the air duct are attached to and staggered with the fixing buckle and flexible washer on the end face of the second fixing plate.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is a wind-cooled permanent magnet electric roller with a novel flange device, which has the characteristics of high stability. During assembly, the flange is fixed to the fixed seat with bolts, and a flexible washer is inserted on the boss. The fixed seat squeezes the soft washer to achieve a sealing effect, so that there is a gap between the flange and the air duct. There is no rigid connection, and the tensile force will not be transmitted to the flange, thus improving stability. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0024] Figure 1 This is a cross-sectional view of a wind-cooled permanent magnet electric drum with a novel flange device according to the present invention.

[0025] Figure 2 for Figure 1 A partial structural schematic diagram of an air-cooled permanent magnet electric drum with a novel flange device is shown.

[0026] Figure 3 for Figure 2 A partial structural schematic diagram of an air-cooled permanent magnet electric drum with a novel flange device is shown.

[0027] Figure 4 for Figure 1 The diagram shows a flange structure of an air-cooled permanent magnet electric drum with a novel flange device.

[0028] Figure 5 for Figure 1 A schematic diagram of the flange structure of another embodiment of an air-cooled permanent magnet electric drum with a novel flange device is shown.

[0029] In the diagram: 1. Main shaft; 2. Stator; 3. Rotor; 4. Mounting base; 5. Flange; 6. Fan; 11. Main junction box; 12. First guide plate; 21. Air duct; 22. Stator core; 211. Duct body; 212. Duct end; 213. Second guide plate; 214. Groove; 31. Rotor steel cylinder; 32. Bearing; 41. Ventilation hole; 51. First fixing plate; 52. Second fixing plate; 53. Connecting plate; 54. Reinforcing rib; 511. Mounting hole; 521. Boss; 55. Flexible washer; 56. Fixing buckle; 551. Fixing groove; 61. Fan drive unit; 62. Fan blade. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please refer to Figures 1 to 5 This utility model is a wind-cooled permanent magnet electric drum with a novel flange device, which includes a main shaft 1, a stator 2 sleeved on the main shaft 1, a rotor 3 surrounding the stator 2, a fixed seat 4 installed at both ends of the rotor 3, and a flange 5 connecting the stator 2 and the fixed seat 4.

[0032] Please refer to Figure 1 One end of the main shaft 1 is equipped with a main junction box 11, through which power is transmitted. The other end of the main shaft 1 is equipped with a fan 6, which includes a fan drive unit 61 and a fan blade 62. The fan drive unit 61 drives the fan blade 62 to rotate, generating wind power.

[0033] The main shaft 1 has a plurality of first guide plates 12, one side of which is fixedly connected to the main shaft 1 and the other side extends radially.

[0034] Please refer to Figures 1 to 2 The stator 2 includes a duct 21 and a stator core 22 surrounding the duct 21. The duct 21 includes a body 211 and a tube end 212 connecting the body 211. The body 211 surrounds the main shaft 1, and the inner wall of the body 211 is equidistant from the surface of the main shaft 1. The outer side of the tube end 212 is fixedly connected to the body 211, and its inner side extends radially for one distance before its axis extends toward the fixed seat 4, and is positioned opposite to the fixed seat 4. Furthermore, a second guide plate 213 is provided on the inner wall of the body 211, and the second guide plate 213 extends radially from the inner wall of the body 211 toward the main shaft 1.

[0035] The stator core 22 is fixed to the outside of the air duct 21.

[0036] Please refer to Figure 1 The rotor 3 includes a rotor steel cylinder 31 and bearings 32 installed at both ends of the rotor steel cylinder 31. The rotor steel cylinder 31 is sleeved with the stator iron core 22, and the bearings 32 are connected to both ends of the stator iron core 22. One part of the bearing 32 is sleeved with the air duct 21, and the other part is connected to the rotor steel cylinder 31.

[0037] Please refer to Figure 2 The fixed seat 4 has a ventilation hole 41. The fixed seat 4 is fixedly connected to the air duct 21 through the flange 5. The main shaft 1 extends into the fixed seat 4 and is fixedly connected to the fixed seat 4. The ventilation hole 41 is axially arranged.

[0038] Please refer to Figures 3 to 4The flange 5 includes a first fixing plate 51 and a second fixing plate 52, and a connecting plate 53 connecting the first fixing plate 51 and the second fixing plate 52. The first fixing plate 51 and the second fixing plate 52 are both annular. The two ends of the connecting plate 53 are respectively connected to the inner ring ends of the first fixing plate 51 and the second fixing plate 52. Preferably, a reinforcing rib 54 is provided between the first fixing plate 51 and the second fixing plate 52. The bottom of the reinforcing rib 54 is fixedly connected to the connecting plate 53, and its two ends are respectively fixedly connected to the opposite side of the first fixing plate 51 and the second fixing plate 52.

[0039] The first fixing plate 51 has several mounting holes 511 penetrating its surface. The outer end face of the first fixing plate 51 is attached to the end face of the fixing seat 4. It is fixedly connected to the fixing seat 4 by bolts or screws through the mounting holes 511. The outer end face of the second fixing plate 52 is opposite to the end face of the air duct 21. Specifically, the outer end face of the second fixing plate 52 has a boss 521. The boss 521 is arranged around the inner end face of the second fixing plate 52. The air duct 21 is recessed inward from the end face to form a groove 214. The boss 521 extends into the groove 214.

[0040] A flexible washer 55 is provided between the outer end face of the second fixing plate 52 and the end face of the air duct 21. The bottom of the flexible washer 55 abuts against the boss 521, and its two side surfaces abut against the outer end face of the second fixing plate 52 and the end face of the air duct 21, respectively.

[0041] Please refer to Figure 5 In another embodiment, the outer ring end face of the second fixing plate 52 is provided with a fixing buckle 56. One end of the fixing buckle 56 is fixedly connected to the second fixing plate 52, and the other end extends radially away from the end face of the second fixing plate 52. That is, the radially extending end of the fixing buckle 56 forms an angle with the second fixing plate 52. The flexible washer 55 has a fixing groove 551 formed by recessing from the surface inward. The fixing buckle 56 extends into the fixing groove 551, so that the flexible washer 55 is fixed to the end face of the second fixing plate 52.

[0042] Preferably, the end face of the air duct 21 has a fixing buckle 56 and a flexible washer 55. The fixing buckle 56 fixes the flexible washer 55 to the end face of the air duct 21. Its structure is the same as that of the fixing buckle 56 and flexible washer 55 provided on the outer ring end face of the second fixing plate 52. The fixing buckle 56 and flexible washer 55 on the end face of the air duct 21 are attached to and staggered with the fixing buckle 56 and flexible washer 55 on the end face of the second fixing plate 52, so that the fixing buckle 56 on the end face of the air duct 21 contacts the flexible washer 55 on the end face of the second fixing plate 52, and the fixing buckle 56 on the end face of the second fixing plate 52 contacts the flexible washer 55 on the end face of the air duct 21.

[0043] When the air-cooled permanent magnet electric drum with a novel flange device is in use, it is powered through the main junction box 11. The rotor steel cylinder 31 rotates around the stator iron core 22. The fan drive unit 61 drives the fan blades 62 to rotate, generating wind. The wind passes axially through the ventilation hole 41 and the flange 5 into the air duct 21 and is discharged from one end of the main junction box 11, reducing the temperature inside the air duct 21.

[0044] This utility model is a wind-cooled permanent magnet electric roller with a novel flange device, which has the characteristics of high stability. During assembly, the flange is fixed to the fixed seat with bolts, and a flexible washer is inserted into the boss. The fixed seat squeezes the soft washer to achieve a sealing effect, so that there is a gap between the flange and the air duct. There is no rigid connection, and the tensile force will not be transmitted to the flange, thus improving stability.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wind-cooled permanent magnet electric drum with a novel flange device, characterized in that, include: Main spindle (1); Stator (2), sleeved with the main shaft (1), the stator (2) includes a duct (21) and a stator core (22), the stator core (22) surrounds the duct (21), the duct (21) is recessed inward from the end face to form a groove (214); The rotor (3) includes a rotor steel cylinder (31) and bearings (32) installed at both ends of the rotor steel cylinder (31), wherein the bearings (32) are sleeved on the air duct (21); Fixed base (4) is installed at both ends of the main shaft (1); The flange (5) includes a first fixing plate (51) and a second fixing plate (52) and a flexible gasket (55). The first fixing plate (51) is fixedly connected to the fixing seat (4). The second fixing plate (52) protrudes outward from the end face to form a boss (521). The boss (521) extends into the groove (214). The flexible gasket (55) is located between the second fixing plate (52) and the air duct (21).

2. The air-cooled permanent magnet electric drum with a novel flange device according to claim 1, characterized in that, The outer end face of the second fixing plate (52) is opposite to the end face of the air duct (21), and the boss (521) is arranged around the inner end face of the second fixing plate (52).

3. The air-cooled permanent magnet electric drum with a novel flange device according to claim 2, characterized in that, The bottom of the flexible washer (55) abuts against the boss (521), and its two side surfaces abut against the outer end face of the second fixing plate (52) and the end face of the air duct (21), respectively.

4. The air-cooled permanent magnet electric drum with a novel flange device according to claim 1, characterized in that, The first fixing plate (51) has a plurality of mounting holes (511) penetrating its surface. The outer end face of the first fixing plate (51) is attached to the end face of the fixing seat (4), and is fixedly connected to the fixing seat (4) by bolts or screws through the mounting holes (511).

5. The air-cooled permanent magnet electric drum with a novel flange device according to claim 1, characterized in that, The flange (5) includes a connecting plate (53) that connects the first fixing plate (51) and the second fixing plate (52), and the two ends of the connecting plate (53) are respectively connected to the inner ring ends of the first fixing plate (51) and the second fixing plate (52).

6. The air-cooled permanent magnet electric drum with a novel flange device according to claim 5, characterized in that, A reinforcing rib (54) is provided between the first fixing plate (51) and the second fixing plate (52). The bottom of the reinforcing rib (54) is fixedly connected to the connecting plate (53), and its two ends are respectively fixedly connected to the opposite side of the first fixing plate (51) and the second fixing plate (52).

7. The air-cooled permanent magnet electric drum with a novel flange device according to claim 1, characterized in that, The outer ring end face of the second fixing plate (52) is provided with a fixing buckle (56). One end of the fixing buckle (56) is fixedly connected to the second fixing plate (52), and the other end extends radially away from the end face of the second fixing plate (52). The radially extending end of the fixing buckle (56) forms an angle with the second fixing plate (52), and the flexible washer (55) is located within the angle.

8. The air-cooled permanent magnet electric drum with a novel flange device according to claim 7, characterized in that, The flexible washer (55) has a fixing groove (551) formed by recessing from the surface inward, and the fixing buckle (56) extends into the fixing groove (551).

9. The air-cooled permanent magnet electric drum with a novel flange device according to claim 7, characterized in that, The end face of the air duct (21) has a fixing buckle (56) and a flexible washer (55), and the fixing buckle (56) fixes the flexible washer (55) to the end face of the air duct (21).

10. The air-cooled permanent magnet electric drum with a novel flange device according to claim 9, characterized in that, The fixing buckle (56) and flexible washer (55) on the end face of the air duct (21) are attached to and staggered with the fixing buckle (56) and flexible washer (55) on the end face of the second fixing plate (52).

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