Double-rotor motor for dryer

Abstract

The double-rotor motor comprises an inner rotor driving module (2) and an outer rotor driving module (3) which are connected through a connecting part (1), a rotating shaft (4) is arranged in the inner rotor driving module (2) and penetrates through the outer rotor driving module (3), and a belt wheel (5) connected with the outer rotor driving module (3) is arranged at the end of the rotating shaft (4). The belt wheel (5) is connected with the rotating shaft (4) through a fourth bearing (303); a belt connecting area (6) is arranged at the end part of the belt wheel (5); the belt connecting area (6) is connected with a load part through a belt (7); and the first damping ring (9) is positioned on the outer side of the outer rotor driving module (3). The utility model has the characteristics that the structure is compact and the occupied space of the whole machine is reduced.

Description

Technical Field

[0001] The utility model relates to a dryer motor, in particular to a double-rotor motor for the dryer. Background Art

[0002] At present, the dryer motor mainly has the following structures: 1. Single motor structure, which can only drive the drum and fan at the same time; 2. Dual motor structure, but using two shafts to drive the drum and fan respectively. In order to ensure the shock absorption effect, shock absorbing rings are installed at both ends of the rotating shaft. However, due to the large size of the existing motor, the distance between the two shock absorbing rings is long, which requires more space in the whole machine, and the overall volume is still relatively large. Therefore, the existing technology has the problem of occupying more space in the whole machine. Utility Model Content

[0003] The purpose of the utility model is to provide a double-rotor motor for a drying machine. The utility model has the characteristics of compact structure and reduced space occupied by the whole machine.

[0004] The technical solution of the utility model: a dual-rotor motor for a dryer, comprising an inner rotor drive module and an outer rotor drive module connected via a connecting component; further comprising a rotating shaft, one end of which is connected to the inner rotor drive module as a driving end, and the other end of which is connected to the outer rotor drive module via a bearing as a supporting end, a pulley connected to the outer rotor drive module is provided at the end of the rotating shaft, and the pulley is connected to the rotating shaft via a fourth bearing; a belt connecting area is provided on the pulley, and the belt connecting area is connected to a load component via a belt; further comprising a first damping ring located outside the outer rotor drive module.

[0005] In the aforementioned dual-rotor motor for a dryer, a first bearing is provided in the first damping ring, and the first bearing is fixed on the surface of the pulley or on the rotating shaft located on the outer side of the pulley.

[0006] In the aforementioned dual-rotor motor for the dryer, the first bearing is fixed to the surface of the pulley, and the first bearing and the first damping ring are located on the inner side or the outer side of the belt connection area.

[0007] In the aforementioned dual-rotor motor for the dryer, a second bearing is provided at the other end of the rotating shaft, and a second shock-absorbing ring is provided outside the second bearing.

[0008] In the aforementioned dual-rotor motor for the dryer, an end cover connected to the rotating shaft via a bearing is provided at the outer end of the inner rotor driving module, and a second shock-absorbing ring is provided on the end cover.

[0009] In the aforementioned dual-rotor motor for the dryer, the load component comprises a reduction wheel connected to the belt connection area via a belt, the reduction wheel is connected to an insert shaft located on the connection component via a third bearing; the reduction wheel is also connected to a load.

[0010] In the aforementioned dual-rotor motor for the dryer, the pulley comprises a pulley support body, an annular fixing plate is provided at the inner end of the outer surface of the pulley support body, and a bearing positioning step is also provided on the outer surface of the pulley support body.

[0011] In the aforementioned dual-rotor motor for the dryer, bearing fixing grooves are also provided at both ends of the inner cavity of the pulley supporting body.

[0012] In the aforementioned dual-rotor motor for the dryer, the inner rotor driving module includes an outer stator fixed on a connecting component, an inner rotor is arranged inside the outer stator, and the inner rotor is connected to the rotating shaft.

[0013] In the aforementioned dual-rotor motor for the dryer, the outer rotor driving module includes an inner stator connected to the connecting component, and an outer rotor is arranged outside the inner stator; the pulley is connected to the outer rotor.

[0014] Compared with the prior art, the utility model is composed of an inner rotor drive module (fixed with the shaft) and an outer rotor drive module (connected with the shaft via a bearing) that share a common shaft, and can independently drive two loads at the same time; the first damping ring is installed on the pulley surface (located on the inner or outer side of the belt connection area) or on the shaft at the outer end of the pulley via the first bearing, so as to effectively compress the space, make the overall structure more compact, reduce the space occupied by the whole machine, greatly improve the space utilization rate, and effectively reduce the cost; at the same time, the present application adopts a pulley structure connected to the outer rotor, which can effectively ensure the operation stability. In addition, the structure of the present application is well matched with the customer's whole machine, and can directly replace the existing single-motor product, and the customer's whole machine structure does not need to be adjusted. In summary, the utility model has the characteristics of compact structure and reduced space occupied by the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 yes Figure 1 A partial enlarged view of

[0017] Figure 3 It is a three-dimensional view of the utility model;

[0018] Figure 4 yes Figure 3 A partial enlarged view of the middle pulley;

[0019] Figure 5 is an exploded view of Example 1;

[0020] Figure 6 is a structural view of a second shock absorbing ring disposed at an end cover;

[0021] Figure 7is a three-dimensional view of a second shock-absorbing ring disposed at an end cover;

[0022] Figure 8 is a structural view of Example 3;

[0023] Fig. 9 is a structural view of Example 4;

[0024] Fig.10 is a structural view of Example 5;

[0025] Fig.11 This is a structural view of Example 6.

[0026] The marks in the accompanying drawings are: 1-connecting component, 2-inner rotor drive module, 3-outer rotor drive module, 4-rotating shaft, 5-pulley, 6-belt connection area, 7-belt, 8-first bearing, 9-first shock-absorbing ring, 10-second bearing, 11-second shock-absorbing ring, 12-reduction wheel, 13-third bearing, 14-insert shaft, 201-outer stator, 202-inner rotor, 301-inner stator, 302-outer rotor, 303-fourth bearing, 304-annular groove, 501-pulley support body, 502-annular fixing plate, 503-bearing positioning step, 504-bearing fixing groove. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0028] Embodiment 1. A double-rotor motor for a drying machine is constructed as follows Figure 1-5 As shown, it includes an inner rotor driving module 2 and an outer rotor driving module 3 connected via a connecting component 1, a rotating shaft 4 is provided in the inner rotor driving module 2, and the rotating shaft 4 passes through the outer rotor driving module 3, a pulley 5 connected to the outer rotor driving module 3 is provided at the end of the rotating shaft 4, and the pulley 5 is connected to the rotating shaft 4 via a fourth bearing 303; a belt connecting area 6 is provided at the end of the pulley 5, and the belt connecting area 6 is connected to a load component via a belt 7; a first bearing 8 located on the inner side of the belt connecting area 6 is also provided on the surface of the pulley 5, and a first shock-absorbing ring 9 is provided outside the first bearing 8.

[0029] The other end of the rotating shaft 4 is provided with a second bearing 10, and a second shock absorbing ring 11 is provided outside the second bearing 10. Figure 1 shown.

[0030] The load component is fixed to the connecting component 1 .

[0031] The load component includes a reduction wheel 12 connected to the belt connection area 6 via the belt 7. The reduction wheel 12 is connected to an insert shaft 14 located on the connection component 1 via a third bearing 13. The reduction wheel 12 is also connected to a load.

[0032] The pulley 5, as Figure 2 and 4 As shown, it includes a pulley support body 501 , an annular fixing sheet 502 is provided at the inner end of the outer surface of the pulley support body 501 , and a bearing positioning step 503 is also provided on the outer surface of the pulley support body 501 .

[0033] The two ends of the pulley support body 501 are also provided with bearing fixing grooves 504 for placing bearings.

[0034] The inner rotor driving module 2 and the rotating shaft 4 are in interference fit.

[0035] The inner rotor driving module 2 includes an outer stator 201 fixed on the connecting component 1 , an inner rotor 202 is arranged inside the outer stator 201 , and the inner rotor 202 and the rotating shaft 4 are in interference fit.

[0036] Specifically, the inner rotor includes an inner rotor shell, on which are disposed components such as an inner rotor core and an inner rotor magnet; the outer stator includes an outer stator frame, on which are disposed components such as an outer stator core and a stator shell, and the stator shell is connected to the inner stator of the outer rotor drive module via a connecting component.

[0037] The outer rotor driving module 3 includes an inner stator 301 connected to the connecting component 1 , and an outer rotor 302 is disposed outside the inner stator 301 ; the pulley 5 is connected to the outer end of the outer rotor 302 .

[0038] Specifically, the inner stator includes a stator inner shell, an inner stator frame and an inner stator core are arranged outside the stator inner shell, and the stator inner shell is connected to the stator outer shell via a connecting component. The outer rotor includes an outer rotor outer shell, and a magnet and a rotor ring are arranged in the inner cavity of the outer rotor outer shell; the stator inner shell is connected to the rotating shaft via a bearing.

[0039] The pulley is connected to the outer rotor and can be integrally formed by injection molding or fixed by screws.

[0040] The inner stator and the connecting component can be connected and fixed by screws.

[0041] The connecting component is connected to the rotating shaft via a bearing.

[0042] The outer end of the outer rotor 302 is provided with an annular groove 304, which cooperates with the annular fixing plate. The annular groove 304 is located on the inner wall surface of the through hole at the outer end of the rotor housing.

[0043] A group of fixing holes are arranged on the annular fixing plate, which can be used to fix with the outer rotor shell.

[0044] An end cover is also provided at the outer end of the inner rotor driving module, and the end cover is connected to the rotating shaft via a bearing.

[0045] The connecting component comprises an internal connecting piece connected to the stator outer shell and the stator inner shell, an external connecting piece is also arranged on the internal connecting piece, and the external connecting piece is connected to the insert shaft. The internal connecting piece is connected to the rotating shaft via a bearing.

[0046] The method of using a dual-rotor motor for a dryer is that one end of the rotating shaft is interference fit with the inner rotor drive module, the other end of the rotating shaft is connected to the pulley through the fourth bearing, and the inner end of the pulley is fixedly connected to the outer rotor shell of the outer rotor drive module, so that both the inner rotor motor module and the outer rotor motor module can be controlled separately.

[0047] By controlling the action of the outer rotor drive module, the outer rotor housing is driven to rotate, which in turn drives the pulley to rotate accordingly. The rotation of the pulley will drive the belt to move, and the belt will drive the reduction wheel connected to it to rotate. The rotation of the reduction wheel will drive the movement of the load connected to the reduction wheel. Moreover, the rotation of the pulley will not drive the rotation of the rotating shaft, and the two are connected via bearings.

[0048] The use process of the inner rotor drive module: the inner rotor is controlled to rotate through the control module, the rotation of the inner rotor will drive the rotation of the shaft with interference fit therewith, and the rotation of the shaft will drive the movement of the corresponding load.

[0049] The first damping ring inside the belt connection area is directly installed on the pulley through the first bearing. The overall structure is simple, the cost is low, and it matches the customer's whole machine well. It can directly replace the existing single-motor products, and the customer's whole machine structure does not need to be adjusted.

[0050] Embodiment 2. The difference between this embodiment and embodiment 1 is that the second damping ring 11 is directly arranged at the end cover of the inner rotor drive module 2, and the structure is as follows: Figure 6 and 7 As shown, this arrangement can reduce the distance between the two damping rings and meet the use requirements of ultra-thin motors.

[0051] Embodiment 3. The difference from Embodiment 1 is that the first damping ring and the first bearing are located on the pulley support body outside the belt connection area, forming a Figure 8 shown.

[0052] Embodiment 4. The difference from Embodiment 1 is that the first damping ring and the first bearing are located outside the belt connection area, and the second damping ring 11 is directly arranged at the end cover of the inner rotor drive module 2, forming Fig. 9 shown.

[0053] Embodiment 5. The difference from Embodiment 1 is that the rotating shaft passes through the pulley and is exposed for a certain distance, and the first damping ring and the first bearing are located at the outer end of the rotating shaft, that is, the exposed end located outside the pulley, forming a Fig.10 shown.

[0054] Embodiment 6. The difference from Embodiment 1 is that: the rotating shaft passes through the pulley and is exposed for a distance, the first damping ring and the first bearing are located at the outer end of the rotating shaft, that is, the exposed end outside the pulley; the second damping ring 11 is directly arranged at the end cover of the inner rotor driving module 2, forming Fig.11 shown.

Claims

1. A dual-rotor motor for a dryer, comprising an inner rotor drive module (2) and an outer rotor drive module (3) connected via a connecting component (1); and further comprising a rotating shaft (4), wherein one end of the rotating shaft (4) is connected to the inner rotor drive module (2) as a driving end, and the other end of the rotating shaft (4) is connected to the outer rotor drive module (3) via a bearing as a supporting end, characterized in that: A pulley (5) connected to the outer rotor drive module (3) is provided at the end of the rotating shaft (4), and the pulley (5) is connected to the rotating shaft (4) via a fourth bearing (303); a belt connection area (6) is provided on the pulley (5), and the belt connection area (6) is connected to a load component via a belt (7); and a first damping ring (9) is also included, which is located outside the outer rotor drive module (3).

2. The dual-rotor motor for a dryer according to claim 1, characterized in that: A first bearing (8) is arranged inside the first damping ring (9), and the first bearing (8) is fixed on the surface of the pulley (5) or on the rotating shaft (4) located on the outer side of the pulley (5).

3. The dual-rotor motor for a dryer according to claim 2, characterized in that: The first bearing (8) is fixed on the surface of the pulley (5), and the first bearing (8) and the first damping ring (9) are located on the inner side or the outer side of the belt connection area (6).

4. The dual-rotor motor for a dryer according to claim 1, characterized in that: A second bearing (10) is provided at the other end of the rotating shaft (4), and a second shock absorbing ring (11) is provided outside the second bearing (10).

5. The dual-rotor motor for a dryer according to claim 1, characterized in that: An end cover connected to the rotating shaft (4) via a bearing is provided at the outer end of the inner rotor driving module (2), and a second shock absorbing ring (11) is provided on the end cover.

6. The dual-rotor motor for a dryer according to claim 1, characterized in that: The load component comprises a reduction wheel (12) connected to the belt connection area (6) via a belt (7); the reduction wheel (12) is connected to an insert shaft (14) located on the connection component (1) via a third bearing (13); the reduction wheel (12) is also connected to a load.

7. The dual-rotor motor for a dryer according to claim 1, characterized in that: The pulley (5) comprises a pulley support body (501), an annular fixing sheet (502) is provided at the inner end of the outer surface of the pulley support body (501), and a bearing positioning step (503) is also provided on the outer surface of the pulley support body (501).

8. The dual-rotor motor for a dryer according to claim 7, characterized in that: Bearing fixing grooves (504) are also provided at both ends of the inner cavity of the pulley support body (501).

9. The dual-rotor motor for a dryer according to claim 1, characterized in that: The inner rotor driving module (2) comprises an outer stator (201) fixed on the connecting component (1), an inner rotor (202) is arranged inside the outer stator (201), and the inner rotor (202) is connected to the rotating shaft (4).

10. The dual-rotor motor for a dryer according to claim 1, characterized in that: The outer rotor driving module (3) comprises an inner stator (301) connected to the connecting component (1), and an outer rotor (302) is arranged outside the inner stator (301); the pulley (5) is connected to the outer rotor (302).

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