CN103640814A - Motor shaft sleeve for protecting motor shaft extension - Google Patents
Motor shaft sleeve for protecting motor shaft extension Download PDFInfo
- Publication number
- CN103640814A CN103640814A CN201310640591.4A CN201310640591A CN103640814A CN 103640814 A CN103640814 A CN 103640814A CN 201310640591 A CN201310640591 A CN 201310640591A CN 103640814 A CN103640814 A CN 103640814A
- Authority
- CN
- China
- Prior art keywords
- motor shaft
- copper body
- motor
- shaft sleeve
- protecting
- 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.)
- Pending
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052802 copper Inorganic materials 0.000 claims abstract description 23
- 239000010949 copper Substances 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000005284 excitation Effects 0.000 description 11
- 238000004804 winding Methods 0.000 description 7
- 238000011900 installation process Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002964 excitative effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a motor shaft sleeve for protecting a motor shaft extension. The motor shaft sleeve for protecting the motor shaft extension comprises a copper body, wherein an inner hole matched with a motor shaft is formed in the copper body, an axial containing groove matched with a key arranged inside a key groove of the motor shaft is formed in the wall of the copper body and protrudes out, a protective film is arranged on the outer wall of the copper body, and heat dissipation holes are formed in the two sides of the copper body. The motor shaft sleeve for protecting the motor shaft extension is simple in structure, reasonable in design, and capable of effectively reducing the occurrence of damage of the motor shaft during transportation and installation of motor products. Furthermore, the working efficiency of the motor shaft sleeve can be effectively improved due to the arrangement of the heat dissipation holes.
Description
Technical field
The present invention relates to a kind of motor shaft sleeve, particularly a kind of motor shaft sleeve for the protection of motor-shaft extending.
Background technology
The stressed direction of conductor is determined by left hand rule.This pair of electromagnetic force has formed and has acted on moment of armature, and this moment is called electromagnetic torque in rotating machine, and the direction of torque is anticlockwise direction, and attempt is rotated armature anticlockwise direction.For example, if this electromagnetic torque can overcome the resistive torque (resistive torque being caused by friction and other load torque) on armature, armature just can rotate by anticlockwise direction.
DC motor is the electrical motor that relies on direct current working volts operation, be widely used in radio cassette player, video tape recorder, video compact disk player, electric shaver, hair dryer, electronic watch, toy etc., the magnetic pole of the stator of electromagnetic type DC motor (main pole) consists of unshakable in one's determination and excitation winding.According to the difference of its excitation (old standard is called excitatory) mode, can be divided into series excitation DC motor, Shunt-excited DC Motors Based, DC motor with separate excitation and D.C. compound generator again.Different because of excitation mode, the rule of magnetic pole of the stator magnetic flux (producing after the excitation coil energising by magnetic pole of the stator) is also different.
Between the excitation winding of series excitation DC motor and rotor winding, by brush and commutator, be in series, exciting current is directly proportional to armature current, the magnetic flow of stator increases along with the increase of exciting current, torque approximate with square being directly proportional of armature current, rotating speed is decline rapidly with the increase of torque or electric current.Its starting torque can reach the more than 5 times of torque rating, and momentary overload torque can reach the more than 4 times of torque rating, and relative speed variation is larger, no load speed very high (generally not allowing it to move under zero load).Can be by realizing speed governing with external application resistor with series excitation windings in series (or in parallel) or by the changing-over of series excitation winding parallel.
The excitation winding of Shunt-excited DC Motors Based and rotor winding are in parallel, and its exciting current is more constant, and starting torque is directly proportional to armature current, and starting current is about 2.5 times of left and right of rated current.Rotating speed slightly declines with the increase of electric current and torque, short-time overload torque is torque rating 1.5 times.Relative speed variation is less, is 5% ~ 15%.Can carry out speed governing by slackening the permanent power in magnetic field.Motor product is in the process of transportation, and motor shaft usually sustains damage, thereby has brought many troubles to people.
Above-mentioned known, be necessary prior art further to improve.
Summary of the invention
Technical matters to be solved by this invention is not enough for prior art, propose a kind of simple in structure, reasonable in design, can effectively reduce motor shaft and damage to obtain phenomenon in motor product transportation, installation process, and louvre the work efficiency that can effectively improve motor shaft sleeve is set.
The present invention is achieved by the following technical solutions:
The invention provides a kind of motor shaft sleeve for the protection of motor-shaft extending; comprise copper body; described copper body is provided with the endoporus matching with motor shaft; on described copper body wall, have and outwards give prominence to and be placed in the axial storage tank that the key in armature keyway matches; the external wall of described copper is provided with protective film, and described copper body both sides are provided with louvre.
The described motor shaft sleeve for the protection of motor-shaft extending, wherein: described copper body top is protuberance upwards.
The present invention is simple in structure, reasonable in design, can effectively reduce motor shaft and damage to obtain phenomenon in motor product transportation, installation process, and louvre the work efficiency that can effectively improve motor shaft sleeve is set.
Accompanying drawing explanation
For the clearer explanation embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skills, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
Fig. 1, be the structural representation for the protection of the motor shaft sleeve of motor-shaft extending.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand the following specific embodiment and only for the present invention is described, is not used in and limits the scope of the invention.It should be noted that, word 'fornt', 'back', " left side ", " right side ", "up" and "down" that use is described below refer to the direction in accompanying drawing, and word " interior " and " outward " refer to respectively the direction towards or away from specific features geometric centre.
Please refer to Fig. 1, Fig. 1 is that the present invention is for the protection of the structural representation of the motor shaft sleeve of motor-shaft extending.
The present invention is for the protection of the motor shaft sleeve of motor-shaft extending; comprise copper body 1; described copper body is provided with the endoporus matching with motor shaft; on described copper body wall, have and outwards give prominence to and be placed in the axial storage tank 2 that the key in armature keyway matches; the external wall of described copper is provided with protective film; described copper body both sides are provided with louvre, and described copper body top is protuberance upwards.
The above, be only preferred embodiment of the present invention, is not the present invention to be done to the restriction of any other form, and according to any modification or equivalent variations that technical spirit of the present invention is done, still belongs to the present invention's scope required for protection.
Claims (2)
1. the motor shaft sleeve for the protection of motor-shaft extending; comprise copper body; it is characterized in that: described copper body is provided with the endoporus matching with motor shaft; on described copper body wall, have and outwards give prominence to and be placed in the axial storage tank that the key in armature keyway matches; the external wall of described copper is provided with protective film, and described copper body both sides are provided with louvre.
2. the motor shaft sleeve for the protection of motor-shaft extending according to claim 1, is characterized in that: described copper body top is protuberance upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310640591.4A CN103640814A (en) | 2013-12-04 | 2013-12-04 | Motor shaft sleeve for protecting motor shaft extension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310640591.4A CN103640814A (en) | 2013-12-04 | 2013-12-04 | Motor shaft sleeve for protecting motor shaft extension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103640814A true CN103640814A (en) | 2014-03-19 |
Family
ID=50246153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310640591.4A Pending CN103640814A (en) | 2013-12-04 | 2013-12-04 | Motor shaft sleeve for protecting motor shaft extension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103640814A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979221A (en) * | 2014-05-22 | 2014-08-13 | 汤坤 | Containing box for small motor |
-
2013
- 2013-12-04 CN CN201310640591.4A patent/CN103640814A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979221A (en) * | 2014-05-22 | 2014-08-13 | 汤坤 | Containing box for small motor |
| CN103979221B (en) * | 2014-05-22 | 2016-04-06 | 陈洁 | A kind of receiver for micro-machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140319 |