CN108199540A - A kind of twin shaft crosses force moment protection motor - Google Patents
A kind of twin shaft crosses force moment protection motor Download PDFInfo
- Publication number
- CN108199540A CN108199540A CN201711371069.5A CN201711371069A CN108199540A CN 108199540 A CN108199540 A CN 108199540A CN 201711371069 A CN201711371069 A CN 201711371069A CN 108199540 A CN108199540 A CN 108199540A
- Authority
- CN
- China
- Prior art keywords
- shaft
- force moment
- rotor
- output shaft
- torque limiter
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/24—Devices for sensing torque, or actuated thereby
Abstract
The present invention discloses a kind of twin shaft and crosses force moment protection motor, including engine base, stator assembles, rotor, output shaft and excessively torque limiter, the stator inner cylinder extension mouth fixing assembling has positioning plate, the line shaft is erected at by being arranged on the bearing level of shaft end between rear cover and positioning plate, the rotor connects line shaft and covers in except stator assembling, described output shaft one end is erected on protecgulum by bearing level and extends to outside, the other end is connect with the coaxial match activities of line shaft, the rotor outer end embeds one and crosses torque limiter, the torque limiter of crossing matches connection with the extension of the rotor.By the above-mentioned means, the present invention, which provides a kind of twin shaft, crosses force moment protection motor, output torque is automatically adjusted by twin shaft, torque overload is avoided to cause mechanical shock, simple in structure, easy maintenance can effectively extend electrical machinery life, reduce failure rate, improve stability.
Description
Technical field
The present invention relates to machinery fields more particularly to a kind of twin shaft to cross force moment protection motor.
Background technology
Existing hump electric car retarder, using common three-phase AC asynchronous motor ,+speed reducer+eliminates a pair
The yielding coupling in hole --- driving crank throw has the following disadvantages：
It, still cannot be straight after slowing down by deceleration mechanism 1. the detent torque due to three-phase AC asynchronous motor is smaller
Driving retarder is connect to be braked, alleviated；It also needs by a yielding coupling for eliminating a pair of holes (original six device to hole),
The strip elliptical aperture formed using a pair of holes is removed so that motor accomplishes that low-load starts；
2. since there are multiple conversion links in centre, power transmission process needs the time, along with the strip of yielding coupling
The idle period of elliptical aperture causes its braking, remission time longer, remission time 0.6S；
3. after motor half revolution, crank throw is acted on by external force to be stopped, motor rotor, deceleration mechanism rotator inertia still
Do not disappear completely, stop in a short time, very big to the impact of some critical components, the service life for leading to critical component is shorter；
4. the electric car retarder before crank throw is driven, will pass through due to using common threephase asynchronous
It is very poor to repeat braking ability for the mechanisms such as speed reducer, yielding coupling.
5. speed reducer is limited by installation site, waste oil can not be collected, and directly arrange to the earth, pollute environment.
6. switching mechanism is more, trouble point is more, and maintenance difficulty is larger.
Invention content
The invention mainly solves the technical problem of providing a kind of twin shafts to cross force moment protection motor, is automatically adjusted by twin shaft
Output torque avoids torque overload from causing mechanical shock, and simple in structure, easy maintenance can effectively extend electrical machinery life, reduce event
Barrier rate improves stability.
In order to solve the above technical problems, one aspect of the present invention is：A kind of twin shaft is provided and crosses force moment protection
Motor, including engine base, outer housing, protecgulum, rear cover, stator inner cylinder, stator key, stator assembling, positioning plate, line shaft, rotor, defeated
Shaft and torque limiter is crossed, be provided with outer housing on the engine base, the outer housing both sides are equipped with protecgulum by bolt
And rear cover, the rear cover inside, which is bolted, is equipped with stator inner cylinder, and it is fixed that the stator inner cylinder lateral wall suit is fixed with
Sub-key and stator assembling, the stator inner cylinder extension mouth fixing assembling have positioning plate, and the line shaft is by being arranged on shaft end
Bearing level is erected between rear cover and positioning plate, and the rotor connects line shaft and covers in except stator assembling, the output
Axis one end is erected on protecgulum by bearing level and extends to outside, and the other end is connect with the coaxial match activities of line shaft, institute
It states rotor outer end and embeds a mistake torque limiter, the torque limiter of crossing matches connection with the extension of the rotor.
In a preferred embodiment of the present invention, the torque limiter of crossing is magnet ring, the magnet ring and rotor
Magnetism connection.
The beneficial effects of the invention are as follows：A kind of twin shaft provided by the invention crosses force moment protection motor, is adjusted automatically by twin shaft
Output torque is saved, torque overload is avoided to cause mechanical shock, simple in structure, easy maintenance can effectively extend electrical machinery life, reduce
Failure rate improves stability.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, wherein：
Fig. 1 is the structure chart for the preferred embodiment that a kind of twin shaft of the present invention crosses force moment protection motor；
Fig. 2 is that a kind of twin shaft of the present invention is crossed and crosses torque limiter in a preferred embodiment of force moment protection motor and be set as
Structure chart during magnet；
Fig. 3 is that a kind of twin shaft of the present invention is crossed and crosses torque limiter in a preferred embodiment of force moment protection motor and be set as
Structure chart during friction plate；
Fig. 4 is that a kind of twin shaft of the present invention is crossed and crosses torque limiter in a preferred embodiment of force moment protection motor and be set as
Structure chart during inside and outside convex block；
Fig. 5 is that a kind of twin shaft of the present invention is crossed and crosses torque limiter in a preferred embodiment of force moment protection motor and be set as
Structure chart during gear ring.
Specific embodiment
The technical solution in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only the part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
As shown in Figs. 1-5, the embodiment of the present invention includes：
A kind of twin shaft crosses force moment protection motor, including engine base 1, outer housing 2, protecgulum 3, rear cover 4, stator inner cylinder 5, stator key
6th, stator assembles 7, positioning plate 8, line shaft 9, rotor 10, output shaft 11 and crosses torque limiter 12, is set on the engine base 1
There is outer housing 2,2 both sides of outer housing are equipped with protecgulum 3 and rear cover 4 by bolt, and 4 inside of rear cover is bolted
Stator inner cylinder 5 is equipped with, 5 lateral wall of the stator inner cylinder suit is fixed with stator key 6 and stator assembling 7, the stator inner cylinder 5
Extension mouth fixing assembling has positioning plate 8, and the line shaft 9 is erected at rear cover 4 and positioning by being arranged on the bearing level of shaft end
Between plate 8, the rotor 10 connects line shaft 9 and covers in except stator assembling 7, and described 11 one end of output shaft passes through bearing water
Flatrack is located on protecgulum 3 and extends to outside, and the other end is connect with 9 coaxial match activities of line shaft, 10 outer end of rotor
Embedded one crosses torque limiter 12, and the torque limiter 12 of crossing matches connection with the extension of the rotor 10.
Wherein, the torque limiter 12 of crossing is magnet ring, and the magnet ring is connect with 10 magnetism of rotor.
A kind of twin shaft of the application crosses force moment protection motor, using the structure of inner stator, outer rotor 10；By to motor
Groove profile, coil windings on stator silicon steel sheet etc. carry out targeted design so that the detent torque of the motor is maximum turns
Square, power demand when fully meeting the braking of retarder (deceleration) device, alleviating；Using motor power axis 9, output shaft 11
Out-of-alignment twin shaft design theory, be equipped with original creation between the shafts crosses torque limiter 12.The motor action time is short,
So that (jogging) device that slows down obtains domestic optimal remission time (﹤ 0.2S), the default protection torque of torque limiter 12 is crossed,
It can be set before manufacture according to actual needs, meet the needs of live different scenes；Torque limiter 12 is crossed to collect
Cheng Hua so that electric motor structure is compact really, and installation and debugging are convenient, it is simple to safeguard.
Specific work process：Stator assembling 7 generates rotating excitation field after energization, makes rotor 10 around line shaft 9, stator assembling 7
Rotation, output shaft 11 is passed to by determining torque limiter by the torque of rotor 10, during motor rotation, protection
Device monitors the torque that motor output shaft 11 is born in real time：When the torque for monitoring to afford on output shaft 11 is less than pre set force
During square, protective device is in a dormant state；When the torque for monitoring to be subject on output shaft 11 is close to default torque, protective device
Automatic preheating is ready to start, i.e., into hot standby state；When the torque for monitoring to be subject on output shaft 11 is more than default torque
When, protective device synchronizes automatic startup and devotes oneself to work immediately, and motor output shaft 11 is implemented to protect.That is in special electricity
During the entire process of motivation work, the output torque of motor is consistently less than or equal to default torque, has thus accomplished true
While protecting power required for reliably braking is provided, is alleviated for retarder, motor is effectively evaded and has reached braking, delaying
When solving position, particularly release position, to impact caused by motor output shaft 11 and engine base 1 when stopping operating moment, from root
Protect line shaft 9, the output shaft 11 of motor without damage in sheet.
The line shaft can add the second output shaft, second output shaft and the output shaft close to one end of rear cover
Three axis are collectively formed and cross force moment protection structure, the two-way offer power output of motor is provided.
The torque limiter of crossing may be configured as friction plate, and the friction plate is total to two panels, is correspondingly embedded in respectively
The output shaft matching surface and line shaft matching surface, composition surface of the matching surface for output shaft and line shaft.Pass through above-mentioned side
Formula can also realize force moment protection, i.e., after more than friction coefficient, friction plate skids, and dissolves over range torque, realized torque
Protection.
The torque limiter of crossing can also be set as follows, make torque limiter described comprising being arranged on
Interior convex block on output shaft matching surface, the outer convex block being arranged on line shaft matching surface, the interior convex block and outer convex block are mutual
Preload convex block is provided in the lateral contact surface gap of matching, the interior convex block and outer convex block, the preload convex block is spherical in shape.Tool
Body, the preload convex block, which includes, is embedded in convex spring in the block, the one protection ball of spring connection, the protection ball half
It is placed in interior convex block and the lateral contact surface gap of outer convex block, the other half is connected to the card that outer convex block inner surface corresponding position opens up
In access slot, when line shaft output torque is more than setting value, protection ball is detached from buckling groove by elastic effect, disconnects the power of line shaft
Output, realized torque protective effect.
The torque limiter of crossing also may be configured as being embedded on the output shaft matching surface and line shaft matching surface
Gear ring is pre-tightened, the preload gear ring surface is dentalation.By the above-mentioned means, once the torque of line shaft output is more than gear ring
On toothing engagement force, cause to skid to realize force moment protection.
In conclusion the present invention provides a kind of twin shafts to cross force moment protection motor, output torque is automatically adjusted by twin shaft,
Torque overload is avoided to cause mechanical shock, simple in structure, easy maintenance can effectively extend electrical machinery life, reduce failure rate, improve
Stability.
The foregoing is merely the embodiment of the present invention, are not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright description is made directly or indirectly is used in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (6)
1. a kind of twin shaft crosses force moment protection motor, which is characterized in that including engine base, outer housing, protecgulum, rear cover, stator inner cylinder, determines
Sub-key, stator assembling, positioning plate, line shaft, rotor, output shaft and torque limiter is crossed, be provided with shell on the engine base
Body, the outer housing both sides are equipped with protecgulum and rear cover by bolt, are bolted on the inside of the rear cover and are equipped with stator
Inner cylinder, the stator inner cylinder lateral wall suit are fixed with stator key and stator assembling, the stator inner cylinder extension mouth fixing assembling
There is positioning plate, the line shaft is erected at by being arranged on the bearing level of shaft end between rear cover and positioning plate, and the rotor connects
It connects line shaft and covers in except stator assembling, described output shaft one end is erected on protecgulum by bearing level and extended to outer
Portion, the other end are connect with the coaxial match activities of line shaft, and the rotor outer end embeds one and crosses torque limiter, the exertin
Square protective device matches connection with the extension of the rotor.
2. twin shaft according to claim 1 crosses force moment protection motor, which is characterized in that the torque limiter of crossing is magnetic
Iron hoop, the magnet ring are connect with rotor magnetic.
3. twin shaft according to claim 1 crosses force moment protection motor, which is characterized in that the line shaft is close to the one of rear cover
End is provided with the second output shaft, and second output shaft is collectively formed three axis with the output shaft and crosses force moment protection structure.
4. twin shaft according to claim 1 crosses force moment protection motor, which is characterized in that the torque limiter of crossing is rubs
Pad, the friction plate are total to two panels, are correspondingly embedded in the output shaft matching surface and line shaft matching surface, the kiss respectively
Composition surface of the conjunction face for output shaft and line shaft.
5. twin shaft according to claim 1 crosses force moment protection motor, which is characterized in that the torque limiter of crossing includes
The interior convex block being arranged on the output shaft matching surface, the outer convex block being arranged on line shaft matching surface, the interior convex block and
Outer convex block is mutually matched, and preload convex block is provided in the lateral contact surface gap of the interior convex block and outer convex block, and the preload is convex
Block is spherical in shape.
6. twin shaft according to claim 1 crosses force moment protection motor, which is characterized in that the torque limiter of crossing is embedding
Enter the preload gear ring on the output shaft matching surface and line shaft matching surface, the preload gear ring surface is dentalation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711371069.5A CN108199540A (en) | 2017-12-19 | 2017-12-19 | A kind of twin shaft crosses force moment protection motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711371069.5A CN108199540A (en) | 2017-12-19 | 2017-12-19 | A kind of twin shaft crosses force moment protection motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108199540A true CN108199540A (en) | 2018-06-22 |
Family
ID=62574731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711371069.5A Pending CN108199540A (en) | 2017-12-19 | 2017-12-19 | A kind of twin shaft crosses force moment protection motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108199540A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2035931U (en) * | 1988-07-16 | 1989-04-12 | 吴江县电力起重机械厂 | Motor with automatic overload protector |
| EP2806541A1 (en) * | 2012-01-17 | 2014-11-26 | Hitachi Industrial Equipment Systems Co., Ltd. | Cantilevered-shaft electric motor |
| CN105422774A (en) * | 2015-11-23 | 2016-03-23 | 中国矿业大学 | Overload protecting device for transmission element of cutting part of coal mining machine |
-
2017
- 2017-12-19 CN CN201711371069.5A patent/CN108199540A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2035931U (en) * | 1988-07-16 | 1989-04-12 | 吴江县电力起重机械厂 | Motor with automatic overload protector |
| EP2806541A1 (en) * | 2012-01-17 | 2014-11-26 | Hitachi Industrial Equipment Systems Co., Ltd. | Cantilevered-shaft electric motor |
| CN105422774A (en) * | 2015-11-23 | 2016-03-23 | 中国矿业大学 | Overload protecting device for transmission element of cutting part of coal mining machine |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180622 |