CN202839283U - Rotary transformer with function of detecting bearing running laps - Google Patents
Rotary transformer with function of detecting bearing running laps Download PDFInfo
- Publication number
- CN202839283U CN202839283U CN 201220438616 CN201220438616U CN202839283U CN 202839283 U CN202839283 U CN 202839283U CN 201220438616 CN201220438616 CN 201220438616 CN 201220438616 U CN201220438616 U CN 201220438616U CN 202839283 U CN202839283 U CN 202839283U
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- CN
- China
- Prior art keywords
- bearing
- rotating shaft
- inner ring
- stator
- rotor
- 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 - Fee Related
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Abstract
The utility model relates to the field of motors which are structurally connected with bearings, and particularly relates to a rotary transformer with the function of detecting bearing running laps. The rotary transformer with the function of detecting the bearing running laps comprises a rotor (1), a stator (2), a shell (3), a bearing (4), a rivet (5) and locating pins (6). An inner ring (41) of the bearing (4) is embedded into a through hole in the center of a rotating shaft (11). The rivet (5) is used for tightly clamping the rotating shaft (11) and the inner ring (41) of the bearing (4). One of the locating pins (6) is connected with the rotating shaft (11) and the inner ring (41) of the bearing (4) in sequence. An outer ring (42) of the bearing (4) and the stator (2) are connected and fixed through one of the locating pins (6), and an outer ring (42) of the bearing (4) and the shell (3) are connected and fixed through one of the locating pins (6). The rotary transformer with the function of detecting the bearing running laps has the advantages of being compact in structure, saving in space, convenient to install and safe and reliable.
Description
Technical field
The utility model relates to the machine field that connects with bearing on the structure, is specially a kind of resolver that detects the effect of bearing race circle that has.
Background technology
Because the exhaust emissions of fuel-engined vehicle causes air pollution and causes greenhouse effect, the all or part of electric automobile that drives with electric energy is developed, that electric automobile has is simple in structure, zero discharge, noise are little, can implement that braking energy reclaims and the energy be supplied with the advantage such as sustainability.Electric automobile relies on motor-driven, and in recent years, more and more harsher to the requirement of the precision of motor, volume, weight, the precision of motor and consistency are directly connected to the interchangeability with the electric power control cabinet, are directly connected to follow-up volume production.The volume and weight of motor directly has influence on the layout of car load, because motor space is very limited, present motor volume is larger again, and the number of batteries of auto-body inner packaging is less, and flying power is poor, and this has just limited the development of electric automobile.
The utility model content
In order to overcome the defective of prior art, a kind of compact conformation, joint space-efficient Motor for Electric Automobile are provided, the utility model discloses a kind of resolver that detects the effect of bearing race circle that has.
The utility model reaches goal of the invention by following technical solution:
A kind of resolver with the effect of detection bearing race circle, comprise rotor, stator and housing, the center fixed rotating shaft of rotor, rotor and stator arrange with one heart, and rotor and stator all are located in the housing, it is characterized in that: also comprise bearing, rivet and alignment pin, the center of rotating shaft has the through hole concentric with rotating shaft, the inner ring of bearing is embedded in the through hole of spindle central, and rivet penetrates from the inner ring of bearing and with the inner ring banding of rotating shaft and bearing, and alignment pin is the inner ring of connection rotating shaft and bearing successively; Between the outer ring and stator of bearing, all be connected and fixed by alignment pin between the outer ring of bearing and the housing, evenly be embedded with ball between the inner ring of bearing and the outer ring of bearing.
Described resolver with the effect of detection bearing race circle is characterized in that: adopt interference fit between the inner ring of bearing and the through hole of spindle central.
The utility model adopts alignment pin to be connected with interference fit, than existing motor employing flat key locate, bolted precision is higher, and reaches easily higher machining accuracy.The utility model has been discarded existing rotor and has been adopted packing ring to add the form that nut is fixed, stator adopts pressing plate and bolt is fixed, and rotating shaft can be shorter, shortened the length of whole motor, alleviated motor weight, the layout of the electric automobile inside of being more convenient for.The utility model has been cancelled the fixed form of existing packing ring, nut, bolt, and rotor adopts the mode of riveting to fix, and stator adopts hot cover process to fix, and has avoided the locking measure of nut bolt, and production technology is better.It is a kind of common failure mode that bearing runs circle, running the circle phenomenon often was difficult to discover in the starting stage, the utility model rotor and bearing inner race (41) are fixing, stator is connected 42 with bearing outer ring) connect, when bearing runs circle, the electric power control cabinet has feedback at once, has solved potential security risk.
The beneficial effects of the utility model are: compact conformation, save the space, and easy for installation, safe and reliable.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below further specify the utility model by specific embodiment.
A kind of resolver with the effect of detection bearing race circle, comprise rotor 1, stator 2, housing 3, bearing 4, rivet 5 and alignment pin 6, as shown in Figure 1, concrete structure is: the center fixed rotating shaft 11 of rotor 1, rotor 1 and stator 2 arrange with one heart, and rotor 1 and stator 2 all are located in the housing 3; The center of rotating shaft 11 has the through hole concentric with rotating shaft 11, the inner ring 41 of bearing 4 is embedded in the through hole at rotating shaft 11 centers, rivet 5 penetrates from the inner ring 41 of bearing 4 and with inner ring 41 bandings of rotating shaft 11 and bearing 4, and alignment pin 6 is the inner ring 41 of connection rotating shaft 11 and bearing 4 successively; Between the outer ring 42 and stator 2 of bearing 4, all be connected and fixed by alignment pin 6 between the outer ring 42 of bearing 4 and the housing 3, evenly be embedded with ball between the inner ring 41 of bearing 4 and the outer ring 42 of bearing 4.
In the present embodiment, adopt interference fit to be connected and fixed between the through hole at the inner ring 41 of bearing 4 and rotating shaft 11 centers.
Claims (2)
1. one kind has the resolver that detects the effect of bearing race circle, comprise rotor (1), stator (2) and housing (3), the center fixed rotating shaft (11) of rotor (1), rotor (1) and stator (2) arrange with one heart, rotor (1) and stator (2) all are located in the housing (3), it is characterized in that: also comprise bearing (4), rivet (5) and alignment pin (6)
The center of rotating shaft (11) has and the concentric through hole of rotating shaft (11), the inner ring (41) of bearing (4) is embedded in the through hole at rotating shaft (11) center, rivet (5) penetrates from the inner ring (41) of bearing (4) and with inner ring (41) banding of rotating shaft (11) and bearing (4), and alignment pin (6) is the inner ring (41) of connection rotating shaft (11) and bearing (4) successively;
Between the outer ring (42) and stator (2) of bearing (4), all pass through alignment pin (6) between the outer ring (42) of bearing (4) and the housing (3) and be connected and fixed, evenly be embedded with ball between the inner ring (41) of bearing (4) and the outer ring (42) of bearing (4).
2. the resolver with the effect of detection bearing race circle as claimed in claim 1 is characterized in that: adopt interference fit between the through hole at the inner ring (41) of bearing (4) and rotating shaft (11) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220438616 CN202839283U (en) | 2012-08-31 | 2012-08-31 | Rotary transformer with function of detecting bearing running laps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220438616 CN202839283U (en) | 2012-08-31 | 2012-08-31 | Rotary transformer with function of detecting bearing running laps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202839283U true CN202839283U (en) | 2013-03-27 |
Family
ID=47950927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220438616 Expired - Fee Related CN202839283U (en) | 2012-08-31 | 2012-08-31 | Rotary transformer with function of detecting bearing running laps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202839283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634184A (en) * | 2016-03-18 | 2016-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing assembly with rotary transformer and motor with bearing assembly |
-
2012
- 2012-08-31 CN CN 201220438616 patent/CN202839283U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634184A (en) * | 2016-03-18 | 2016-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing assembly with rotary transformer and motor with bearing assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20180831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |