CN208508724U - The variable gap device of AC Motor Control centrifugal switch - Google Patents
The variable gap device of AC Motor Control centrifugal switch Download PDFInfo
- Publication number
- CN208508724U CN208508724U CN201821408846.9U CN201821408846U CN208508724U CN 208508724 U CN208508724 U CN 208508724U CN 201821408846 U CN201821408846 U CN 201821408846U CN 208508724 U CN208508724 U CN 208508724U
- Authority
- CN
- China
- Prior art keywords
- bearing
- end cap
- electric motor
- centrifugal switch
- motor end
- 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.)
- Withdrawn - After Issue
Links
- 238000005119 centrifugation Methods 0.000 claims abstract description 15
- 230000005284 excitation Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Centrifugal Separators (AREA)
Abstract
The utility model relates to a kind of variable gap devices of AC Motor Control centrifugal switch, including electric motor end cap, centrifugal switch device is housed in electric motor end cap inner cavity, centrifugation bottom plate in centrifugal switch device is fixedly connected with electric motor end cap, centrifugal switch in centrifugal switch device is connect with rotor, the axis of rotor is connected by the bearing chamber of bearing and electric motor end cap, a through-hole is provided on the bearing chamber side of the electric motor end cap, a bearing lock catch is fixedly connected with by the self threading pin screwed in through-hole in electric motor end cap, bearing lock catch is close to bearing outer end face, to which axial restraint lives bearing and rotor, making the gap being centrifuged between bottom plate and centrifugal switch is always certain value.The variable gap that the utility model can solve centrifugal switch and be centrifuged between bottom plate offsets the technical issues of rotating excitation field is to rotor bring axial magnetic pull.
Description
Technical field
The utility model relates to a kind of AC Motor Control centrifugal switch, especially a kind of AC Motor Control centrifugal switch
Clearance adjustable device.
Background technique
It is exactly one kind on the basis of auxiliary winding that single phase ac high torque motor, which is different from conventional single-phase motor in fact,
It connects a upper start-up capacitance, start-up capacitance is connected to above centrifugal device, and when electric motor starting, revolving speed has reached specified
Revolving speed 80% or so when, centrifugal device work, disconnect start-up capacitance.The main purpose of capacitor is to start in series connection
The electric current of winding, which is greater than main winding, makes its generate staring torque, and the advantages of this method is exactly that staring torque is big, and power factor is high,
So using very universal.
Because the motor of high start torque is needed with start-up capacitance and centrifugal device, centrifugal device is by centrifugation bottom plate and centrifugation
Switch composition, start-up capacitance are connected on two power connections of centrifugation bottom plate, are controlled by the centrifugal hammer of centrifugal switch rotation
The power connection ON/OFF of bottom plate.Centrifugation bottom plate is fixed on rear end cap, and centrifugal switch is interference fitted in shaft,
It is set to reach certain revolving speed, centrifugal hammer is opened, and is touched centrifugation bottom plate connector, is disconnected start-up capacitance.Again because in practical life
The mismachining tolerance of motor when production, one end of the rotor shaft shoulder must be equipped with corrugated gasket, the small 1mm of the thickness of corrugated gasket,
Big has 2mm.At work, for rotor when cutting magnetic line, rotating excitation field can form an axial magnetic to rotor to motor
Pulling force makes its rotor have axial play.So, variable gap will be had by being centrifuged between bottom plate and centrifugal switch, this
A gap can have direct influence to the breaking speed of centrifugal switch.To influence the time and the starting that are centrifuged the disconnection of bottom plate
Torque.
Summary of the invention
To be solved in the utility model is exactly the variable gap between centrifugal switch and centrifugation bottom plate, offsets rotating excitation field and gives
Rotor bring axial magnetic pull, and a kind of variable gap device of AC Motor Control centrifugal switch is provided.
The utility model, which solves the above problems, mainly to be realized by following technical proposals:
A kind of variable gap device of AC Motor Control centrifugal switch, including electric motor end cap, electric motor end cap fill in inner cavity
Have centrifugal switch device, the centrifugation bottom plate in centrifugal switch device is fixedly connected with electric motor end cap, in centrifugal switch device from
Heart switch is connect with rotor, and the axis of rotor is connected by the bearing chamber of bearing and electric motor end cap, the electric motor end cap
Bearing chamber side on be provided with a through-hole, a bearing lock is fixedly connected with by the self threading pin in screw-in through-hole in electric motor end cap
Button, bearing lock catch is close to bearing outer end face, so that axial restraint lives bearing and rotor, make to be centrifuged bottom plate and centrifugal switch it
Between gap be always certain value.
Further, the bearing lock catch is made of locked body and lock boss, and locked body is equipped with lock boss and connection
Through-hole.
Further, the lock boss is placed in inside electric motor end cap, connection through-hole and the bearing chamber side for passing through electric motor end cap
The self threading pin of upper through-hole connects.
Further, when bearing lock catch is close to bearing outer end face, the lock boss is stuck in the bearing chamber side of electric motor end cap
On.
The beneficial effects of the utility model are:
As soon as 1) open a through-hole, the purpose of this through-hole on the bearing chamber side of the electric motor end cap for the high start torque being newly opened
It is one bearing lock catch of installation, it is convenient to lock and unclamp in the outside of electric motor end cap.
2) after the centrifugation bottom plate inside motor and centrifugal switch are completed, it is only necessary to outside using spanner rotation and
The screw of bearing lock catch connection fixes bearing.To fix rotor, prevents it from axial float, ensure that centrifugation bottom plate
Gap between centrifugal switch is immutable.
3) if, without this bearing lock catch, rotor axial float will occurs when motor operates, cause to be centrifuged
Gap between bottom plate and centrifugal switch is not fixed, it cannot be guaranteed that the detent torque of motor.Otherwise bearing lock catch is loaded onto, rotor
The power that the power and lock shaft of axial float are held counteracts, and the gap between centrifugal switch and centrifugation bottom plate secures, centrifugal device
Gap and detent torque can also be controlled effectively.
Detailed description of the invention
Fig. 1 is the variable gap apparatus structure schematic diagram of the AC Motor Control centrifugal switch of the utility model；
Fig. 2 is that bearing and bearing lock catch schematic diagram are installed in electric motor end cap；
Fig. 3 is centrifugal switch device structural schematic diagram；
Fig. 4 is motor end cap structure perspective view；
Fig. 5 is motor end cap structure plan view；
Fig. 6 is bearing lock catch structural perspective；
Fig. 7 is bearing lock catch structural front view；
Fig. 8 is bearing lock catch structural side view.
Specific embodiment
In order to which those of ordinary skill can implement, specific embodiment once is described now in conjunction with the form of attached drawing.
As shown in figures 1 and 2, a kind of variable gap device of AC Motor Control centrifugal switch, including electric motor end cap 3, motor
Rotor 4, centrifugal switch device 1, bearing 5, bearing lock catch 2, self threading pin.
Centrifugal switch device 1, centrifugation bottom plate 1-1 and motor side in centrifugal switch device 1 are housed in 3 inner cavity of electric motor end cap
Lid 3 is fixedly connected, and the centrifugal switch 1-2 in centrifugal switch device 1 is connect with rotor 4, and the axis of rotor 4 passes through bearing
5 connect with the bearing chamber 3-1 of electric motor end cap 3.As shown in figures 3 and 4, a through-hole is provided on the side bearing chamber 3-1 of electric motor end cap 3
3-2, electric motor end cap 3 is interior to be fixedly connected with a bearing lock catch 2 by the self threading pin screwed in through-hole 3-2, and bearing lock catch 2 is close to axis
5 outer end faces are held, so that axial restraint lives bearing 5 and rotor 4, make the gap being centrifuged between bottom plate 1-1 and centrifugal switch 1-2
It is always certain value.When bearing lock catch is close to bearing outer end face, the lock boss is stuck on the bearing chamber side of electric motor end cap.
Such as Fig. 6, shown in 7,8, bearing lock catch 2 is made of locked body 2-1 and lock boss 2-2, and locked body 2-1 is equipped with lock
Detain boss 2-2 and connection through-hole 2-3.Lock boss 2-2 is placed in 3 the inside of electric motor end cap, connects through-hole 2-3 and passes through electric motor end cap
The self threading pin connection of through-hole 3-2 on 3 side bearing chamber 3-1.
As shown in Figure 1, then centrifugal switch device 1 is passed through by certain rotation speed that is rotated up to of rotor 4
The centrifugal switch 1-2 in centrifugal switch device 1 in Fig. 3 is thrown away to stir the contact of centrifugal switch device 1.
Existing electric motor end cap needs, which are improved, to be re-molded, and a through-hole 3-2, such as Fig. 5 are added on the side bearing chamber 3-1
It is shown, it then is inserted into through-hole 3-2 with standard self threading pin, finally the logical of the connection through-hole 2-3 of bearing lock catch 2 and electric motor end cap 3
Hole 3-2 is corresponding, the lock boss 2-2 of bearing lock catch 2 towards inside end cap, then with lock rifle electric motor end cap 3 outer lock from
Attack nail.This bearing lock catch 2 can follow self threading pin to rotate when dismounting bearing lock catch 2, because bearing lock catch 2 is one, band lock
Boss 2-2 is detained, when bearing lock catch 2 rotates to certain position, lock boss 2-2 can be stuck on the side bearing chamber 3-1 of electric motor end cap,
When self threading pin continues rotation, bearing lock catch 2 will be shot, achieve the purpose that locked and dismounts bearing lock catch 2.
Claims (4)
1. a kind of variable gap device of AC Motor Control centrifugal switch, including electric motor end cap, electric motor end cap are equipped in inner cavity
Centrifugal switch device, the centrifugation bottom plate in centrifugal switch device are fixedly connected with electric motor end cap, the centrifugation in centrifugal switch device
Switch is connect with rotor, and the axis of rotor is connected by the bearing chamber of bearing and electric motor end cap, it is characterised in that: described
A through-hole is provided on the bearing chamber side of electric motor end cap, the interior self threading pin by screwing in through-hole of electric motor end cap is fixedly connected with one
Bearing lock catch, bearing lock catch is close to bearing outer end face, so that axial restraint lives bearing and rotor, makes to be centrifuged bottom plate and centrifugation
Gap between switch is always certain value.
2. the variable gap device of AC Motor Control centrifugal switch according to claim 1, it is characterised in that: the axis
It holds lock to be made of locked body and lock boss, locked body is equipped with lock boss and connection through-hole.
3. the variable gap device of AC Motor Control centrifugal switch according to claim 1, it is characterised in that: the lock
Button boss is placed in inside electric motor end cap, and connection through-hole is connect with the self threading pin of through-hole on the bearing chamber side for passing through electric motor end cap.
4. the variable gap device of AC Motor Control centrifugal switch according to claim 1, it is characterised in that: work as bearing
When lock is close to bearing outer end face, the lock boss is stuck on the bearing chamber side of electric motor end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821408846.9U CN208508724U (en) | 2018-08-30 | 2018-08-30 | The variable gap device of AC Motor Control centrifugal switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821408846.9U CN208508724U (en) | 2018-08-30 | 2018-08-30 | The variable gap device of AC Motor Control centrifugal switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208508724U true CN208508724U (en) | 2019-02-15 |
Family
ID=65300923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821408846.9U Withdrawn - After Issue CN208508724U (en) | 2018-08-30 | 2018-08-30 | The variable gap device of AC Motor Control centrifugal switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208508724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108900041A (en) * | 2018-08-30 | 2018-11-27 | 上海特波电机有限公司 | The variable gap device of AC Motor Control centrifugal switch |
-
2018
- 2018-08-30 CN CN201821408846.9U patent/CN208508724U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108900041A (en) * | 2018-08-30 | 2018-11-27 | 上海特波电机有限公司 | The variable gap device of AC Motor Control centrifugal switch |
| CN108900041B (en) * | 2018-08-30 | 2024-10-11 | 上海特波电机有限公司 | Variable gap device for controlling centrifugal switch by AC motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190215 Effective date of abandoning: 20241011 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190215 Effective date of abandoning: 20241011 |