CN203607983U - Motor and motor rotor assembly - Google Patents
Motor and motor rotor assembly Download PDFInfo
- Publication number
- CN203607983U CN203607983U CN201320823426.8U CN201320823426U CN203607983U CN 203607983 U CN203607983 U CN 203607983U CN 201320823426 U CN201320823426 U CN 201320823426U CN 203607983 U CN203607983 U CN 203607983U
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- China
- Prior art keywords
- bearing
- rotating shaft
- rotor assembly
- motor
- transition part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000007704 transition Effects 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 25
- 238000009434 installation Methods 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model discloses a motor and a motor rotor assembly, wherein the motor rotor assembly comprises a rotating shaft, a bearing cover, and a first bearing, wherein the outer ring of the first bearing is fixed on the bearing cover. The motor rotor assembly also comprises a transition part, and the abrasive resistance of the transition part is the same as or similar to the abrasive resistance of the first bearing. The transition part is fixed on the rotating shaft in a sleeving manner. The outer ring of the transition part cooperates with the inner ring of the first bearing in a clearance fit manner. During a working process, the rotating shaft is driven by the rotor assembly to rotate, and the transition part at the periphery of the rotating shaft and the rotating shaft rotate synchronously. Moreover, a sliding-like bearing structure is formed between the outer ring of the transition part and the inner ring of the first bearing. The transition part replaces the rotating shaft, and sliding friction happens between the transition part and the first bearing. Because the abrasive resistance of the transition part and the abrasive resistance of the first bearing are about the same, a phenomenon of unbalanced abrasion of the bearing and the rotating shaft is avoided, thereby avoiding a jammed phenomenon because of severe abrasion, and prolonging the service life of the motor. The utility model also discloses the motor which comprises the above rotor assembly.
Description
Technical field
The utility model relates to motor device technical field, particularly a kind of rotor assembly for motor.The utility model also relates to a kind of motor that comprises above-mentioned rotor assembly.
Background technology
Motor is widely used in the every field of productive life as a kind of dynamical element.Motor comprises housing and is fixed on the stator module of housing, and under the driving of stator module, rotates and export the rotor assembly rotatablely moving.Wherein, the rotating shaft that rotor assembly further comprises rotor body and output rotatablely moves under the drive of rotor body, rotating shaft is rotationally connected by bearing and the bearing cap being fixed on housing.
As shown in Figure 1, in traditional rotor component construction, bearing 11 press-fits in bearing cap 12, and by outer ring and bearing cap 12 interference fit of bearing 11, the inner ring of bearing 11 and rotating shaft 13 matched in clearance, rotating shaft 13 can freely be rotated with respect to bearing 11.But, due to reasons such as process and assemble errors, between rotating shaft and bearing, can there is certain axial dipole field, in the process of running up, brearing bore discontinuity, can cause rotating shaft and bearing to rub in various degree; Rotating shaft and bearing material difference, resistance to wear difference is larger, and, easily there is stuck phenomenon, and have a strong impact on electrical machinery life in the wherein poor one wearing and tearing aggravation of resistance to wear.
Therefore, how to avoid bearing and the rotating shaft over worn situation of a side due to the unbalanced appearance of wearing and tearing, avoid due to the stuck phenomenon that acutely causes of wearing and tearing, in the useful life of improving motor, need the problem of solution badly with regard to becoming those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of rotor assembly for motor, between its bearing and rotating shaft, be provided with transition member, the resistance to wear of transition member is identical with bearing or close, thereby avoid bearing and rotating shaft to occur the unbalanced phenomenon of wearing and tearing, and then avoided due to sharp wear cause stuck, the useful life of having improved motor.Another object of the present utility model is to provide a kind of motor that comprises above-mentioned rotor assembly.
For solving the problems of the technologies described above, the utility model provides a kind of rotor assembly for motor, comprises rotating shaft, bearing cap and is fixed on the clutch shaft bearing of described bearing cap with its outer ring; Also comprise the transition member identical or close with the resistance to wear of described clutch shaft bearing, described transition member is set with and is fixed on described rotating shaft, and the inner ring matched in clearance of the outer ring of described transition member and described clutch shaft bearing.
Preferably, described transition member is the second bearing.
Preferably, in described rotating shaft, offer draw-in groove, described the second bearing is installed in described draw-in groove.
Preferably, described rotating shaft is connected by flat key with described the second bearing.
Preferably, the inner ring of described the second bearing and described rotating shaft interference fit.
Preferably, the inner ring of described the second bearing is adhered to described rotating shaft.
Preferably, the outer ring of described clutch shaft bearing and described bearing cap interference fit.
The utility model also provides a kind of motor, comprises stator module and rotor assembly, and described rotor assembly is rotor assembly as above.
Rotor assembly provided by the utility model is for motor, and this rotor assembly comprises rotating shaft, bearing cap and is fixed on the clutch shaft bearing of described bearing cap with its outer ring; This rotor assembly also comprises the transition member identical or close with the resistance to wear of clutch shaft bearing, and transition member is set with and is fixed on rotating shaft, and the inner ring matched in clearance of the outer ring of transition member and clutch shaft bearing; In the course of the work, rotating shaft is rotated under the drive of rotor assembly, the transition member of rotating shaft periphery is synchronizeed and is rotated with rotating shaft, and by forming class sliding bearing structure between transition member outer ring and clutch shaft bearing inner ring, transition member replaces rotating shaft and clutch shaft bearing generation sliding friction, because the resistance to wear of transition member and clutch shaft bearing is roughly the same, thereby avoid bearing and rotating shaft to occur the unbalanced phenomenon of wearing and tearing, and then avoided due to sharp wear cause stuck, the useful life of having improved motor.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of prior art rotor assembly;
Fig. 2 is the partial structurtes schematic diagram of rotor assembly the first embodiment provided by the utility model;
Fig. 3 is the installation diagram of rotor assembly shaft shown in Fig. 2 and the second bearing;
Fig. 4 is the upward view of installation diagram shown in Fig. 3;
Fig. 5 is the partial structurtes schematic diagram of rotor assembly the second embodiment provided by the utility model;
Fig. 6 is the installation diagram of rotor assembly shaft shown in Fig. 5 and the second bearing;
Fig. 7 is the upward view of installation diagram shown in Fig. 6;
Fig. 8 is the partial structurtes schematic diagram of rotor assembly the first embodiment provided by the utility model;
Fig. 9 is the installation diagram of rotor assembly shaft shown in Fig. 8 and the second bearing;
Figure 10 is the upward view of installation diagram shown in Fig. 9;
Figure 11 is the partial structurtes schematic diagram of rotor assembly the first embodiment provided by the utility model;
Figure 12 is the installation diagram of rotor assembly shaft shown in Figure 11 and the second bearing;
Figure 13 is the upward view of installation diagram shown in Figure 12;
Figure 14 is the structural representation of a kind of embodiment of motor provided by the utility model.
Embodiment
Core of the present utility model is to provide a kind of rotor assembly for motor, between its bearing and rotating shaft, be provided with transition member, the resistance to wear of transition member is identical with bearing or close, thereby avoid bearing and rotating shaft to occur the unbalanced phenomenon of wearing and tearing, and then avoided due to sharp wear cause stuck, the useful life of having improved motor.Another core of the present utility model is to provide a kind of motor that comprises above-mentioned rotor assembly.
In order to make those skilled in the art person understand better the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Rotor assembly provided by the utility model is for motor, and this rotor assembly comprises rotating shaft 21, bearing cap 22 and is fixed on the clutch shaft bearing 23 of described bearing cap 22 with its outer ring; This rotor assembly also comprises the transition member identical or close with the resistance to wear of clutch shaft bearing 23, and transition member is set with and is fixed on rotating shaft 21, and the inner ring matched in clearance of the outer ring of transition member and clutch shaft bearing 23; In the course of the work, rotating shaft 21 is rotated under the drive of rotor assembly, the transition member of rotating shaft 21 peripheries is synchronizeed rotation with rotating shaft 21, and by forming class sliding bearing structure between transition member outer ring and clutch shaft bearing 23 inner rings, transition member replaces rotating shaft 21 and clutch shaft bearing 23 that sliding friction occurs, because the resistance to wear of transition member and clutch shaft bearing 23 is roughly the same, thereby avoid bearing and rotating shaft 21 to occur the unbalanced phenomenon of wearing and tearing, and then avoided due to sharp wear cause stuck, the useful life of having improved motor.
Preferably, above-mentioned transition member can be the second bearing 24, realizes being rotationally connected between rotating shaft 21 and bearing cap 22 by the mode of duplex bearing; Like this, in rotating shaft 21 rotation processes, the outer ring rotating of the second bearing 24 is slower, thereby has reduced the friction between transition member and clutch shaft bearing 23.
From theory, transition member is also not limited to the form of the second bearing 24, as long as transition member equates substantially with the resistance to wear of clutch shaft bearing 23, can not cause the wearing and tearing of transition member and clutch shaft bearing 23 inhomogeneous, for example, transition member also can be for being sleeved on the structures such as quoit in rotating shaft 21.
In embodiment provided by the present invention, the second bearing 24 can have multiple with the connected mode of rotating shaft 21.
Please refer to Fig. 2, Fig. 3 and Fig. 4, Fig. 2 is the partial structurtes schematic diagram of rotor assembly the first embodiment provided by the utility model; Fig. 3 is the installation diagram of rotor assembly shaft shown in Fig. 2 and the second bearing; Fig. 4 is the upward view of installation diagram shown in Fig. 3.
In the first embodiment, rotating shaft 21 can be fixedly connected with by the form clamping with the second bearing 24, particularly, offers draw-in groove or rotating shaft 21 is designed to multidiameter form in rotating shaft 21, and the second bearing 24 is installed in draw-in groove; Meanwhile, clutch shaft bearing 23 interference are press-fit in bearing cap 22, and clutch shaft bearing 23 and the second bearing 24 form matched in clearance, form class sliding bearing structure.
Clutch shaft bearing 23 is not limited to interference and is press-fit in bearing cap 22 in this embodiment, from theory, can adopt in this area the conventional various modes that are fixedly connected with that use to realize being fixedly connected with of clutch shaft bearing 23 and bearing cap 22, for example, the form such as clamp, bonding or key is connected, groove is connected.
Please refer to Fig. 5, Fig. 6 and Fig. 7, Fig. 5 is the partial structurtes schematic diagram of rotor assembly the second embodiment provided by the utility model; Fig. 6 is the installation diagram of rotor assembly shaft shown in Fig. 5 and the second bearing; Fig. 7 is the upward view of installation diagram shown in Fig. 6.
In a second embodiment, above-mentioned the second bearing 24 is fixedly connected with by flat key connected mode with rotating shaft 21, particularly, offer respectively keyway in the inner ring of the second bearing 24 and the appropriate location, outer ring of rotating shaft 21 or rotating shaft 21 is designed to the form of multidiameter, flat key is installed in two keyways, to realize being fixedly connected with between the second bearing 24 and rotating shaft 21; Meanwhile, clutch shaft bearing 23 interference are press-fit in bearing cap 22, and clutch shaft bearing 23 and the second bearing 24 form matched in clearance, form class sliding bearing structure.
Above-mentioned flat key can arrange one, also can be multiple along circumferentially arranging of rotating shaft 21, and each flat key is upwards uniform in the week of rotating shaft 21.
Clutch shaft bearing 23 is not limited to interference and is press-fit in bearing cap 22 in this embodiment, from theory, can adopt in this area the conventional various modes that are fixedly connected with that use to realize being fixedly connected with of clutch shaft bearing 23 and bearing cap 22, for example, the form such as clamp, bonding or key is connected, groove is connected.
Please refer to Fig. 8, Fig. 9 and Figure 10, Fig. 8 is the partial structurtes schematic diagram of rotor assembly the first embodiment provided by the utility model; Fig. 9 is the installation diagram of rotor assembly shaft shown in Fig. 8 and the second bearing; Figure 10 is the upward view of installation diagram shown in Fig. 9.
In the 3rd embodiment, the inner ring of the second bearing 24 and rotating shaft 21 interference fit, realize being fixedly connected with of the second bearing 24 and rotating shaft 21 by the mode press-fiting; Meanwhile, clutch shaft bearing 23 interference are press-fit in bearing cap 22, and clutch shaft bearing 23 and the second bearing 24 form matched in clearance, form class sliding bearing structure.
Clutch shaft bearing 23 is not limited to interference and is press-fit in bearing cap 22 in this embodiment, from theory, can adopt in this area the conventional various modes that are fixedly connected with that use to realize being fixedly connected with of clutch shaft bearing 23 and bearing cap 22, for example, the form such as clamp, bonding or key is connected, groove is connected.
Please refer to Figure 11, Figure 12 and Figure 13, Figure 11 is the partial structurtes schematic diagram of rotor assembly the first embodiment provided by the utility model; Figure 12 is the installation diagram of rotor assembly shaft shown in Figure 11 and the second bearing; Figure 13 is the upward view of installation diagram shown in Figure 12.
In the 4th embodiment, between the second bearing 24 and rotating shaft 21, glue-line 26 can be set, the inner ring of the second bearing 24 is adhered to rotating shaft 21; Meanwhile, clutch shaft bearing 23 interference are press-fit in bearing cap 22, and clutch shaft bearing 23 and the second bearing 24 form matched in clearance, form class sliding bearing structure.
Clutch shaft bearing 23 is not limited to interference and is press-fit in bearing cap 22 in this embodiment, from theory, can adopt in this area the conventional various modes that are fixedly connected with that use to realize being fixedly connected with of clutch shaft bearing 23 and bearing cap 22, for example, the form such as clamp, bonding or key is connected, groove is connected.
Except above-mentioned rotor assembly, the utility model also provides a kind of motor that comprises above-mentioned rotor assembly, and this motor is especially applied to rotor assembly and is arranged in the equipment such as the water pump in liquid.
To be arranged on motor in water pump as example, sketch the course of work of rotor assembly provided by the utility model below.
As shown in figure 14, circulating pump energising operation, drive the rotor body 25 of lower rotor part assembly to drive rotating shaft 21 to run up at stator module 3, the second bearing 24 is fixedly connected with rotating shaft 21, and runs up with rotating shaft 21, the second bearing 24 is fixedly connected with bearing cap 22, clutch shaft bearing and the second bearing 24 relative slidings, form class sliding bearing structure, thereby avoid rotating shaft 21 and bearing direct friction, reduce wear, extend motor useful life.
Above a kind of motor provided by the utility model and rotor assembly thereof are described in detail.Applied specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection range of the utility model claim.
Claims (8)
1. for a rotor assembly for motor, comprise rotating shaft (21), bearing cap (22) and be fixed on the clutch shaft bearing (23) of described bearing cap (22) with its outer ring; It is characterized in that, also comprise the transition member identical or close with the resistance to wear of described clutch shaft bearing (23), described transition member is set with and is fixed on described rotating shaft (21), and the inner ring matched in clearance of the outer ring of described transition member and described clutch shaft bearing (23).
2. the rotor assembly for motor according to claim 1, is characterized in that, described transition member is the second bearing (24).
3. the rotor assembly for motor according to claim 2, is characterized in that, described rotating shaft offers draw-in groove on (21), and described the second bearing (24) is installed in described draw-in groove.
4. the rotor assembly for motor according to claim 2, is characterized in that, described rotating shaft (21) is connected by flat key with described the second bearing (24).
5. the rotor assembly for motor according to claim 2, is characterized in that, the inner ring of described the second bearing (24) and described rotating shaft (21) interference fit.
6. the rotor assembly for motor according to claim 2, is characterized in that, the inner ring of described the second bearing (24) is adhered to described rotating shaft (21).
7. according to the rotor assembly for motor described in claim 1 to 6 any one, it is characterized in that the outer ring of described clutch shaft bearing (23) and described bearing cap (22) interference fit.
8. a motor, comprises stator module and rotor assembly, it is characterized in that, described rotor assembly is the rotor assembly as described in claim 1 to 7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320823426.8U CN203607983U (en) | 2013-12-12 | 2013-12-12 | Motor and motor rotor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320823426.8U CN203607983U (en) | 2013-12-12 | 2013-12-12 | Motor and motor rotor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203607983U true CN203607983U (en) | 2014-05-21 |
Family
ID=50720641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320823426.8U Expired - Lifetime CN203607983U (en) | 2013-12-12 | 2013-12-12 | Motor and motor rotor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203607983U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024001262A1 (en) * | 2022-06-29 | 2024-01-04 | 三一重型装备有限公司 | Connecting device and power assembly |
-
2013
- 2013-12-12 CN CN201320823426.8U patent/CN203607983U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024001262A1 (en) * | 2022-06-29 | 2024-01-04 | 三一重型装备有限公司 | Connecting device and power assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170120 Address after: 312500 Zhejiang city of Shaoxing province Xinchang County Chengguan town of Liquan Patentee after: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. Address before: 312500 Liquan village of Chengguan Zhejiang city of Shaoxing province Xinchang County town Patentee before: ZHEJIANG SANHUA Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20220819 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: Xia Li Quan, Chengguan Town, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |
|
| CX01 | Expiry of patent term |