CN109067058A - A kind of direct current generator and the shearing machine based on the motor - Google Patents
A kind of direct current generator and the shearing machine based on the motor Download PDFInfo
- Publication number
- CN109067058A CN109067058A CN201811033611.0A CN201811033611A CN109067058A CN 109067058 A CN109067058 A CN 109067058A CN 201811033611 A CN201811033611 A CN 201811033611A CN 109067058 A CN109067058 A CN 109067058A
- Authority
- CN
- China
- Prior art keywords
- direct current
- current generator
- thickness
- casing
- magnetite
- 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
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/26—Rotor cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
- H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc Machiner (AREA)
Abstract
The present invention provides direct current generator, since the thickness of shell being set as with the thickness of magnetite ratio being 1/2.2 to 1/2.5 so that shell as magnetic yoke can sufficient conduct magnetic field, magnetic circuit will not easily reach saturation state；It is avoided in turn because electric current caused by magnetic circuit saturation rises in vain and unreasonable increase, also avoids temperature rising, noise increases and motor oscillating becomes strong problem.And the shearing machine provided accordingly, motor can be realized torque not less than 250g.cm under full power condition, electric current is not higher than 0.9 Amps, therefore can more adapt to this application scenarios of cropping, effectively avoids the problems such as killing of shearing machine.
Description
Technical field
The present invention relates to technical field of motors, in particular to a kind of direct current generator and the shearing machine based on the motor.
Background technique
Direct current generator is used to direct current energy being converted into mechanical energy, is now widely used for various electrical equipments.Such as
Shear field had both used direct current generator as power source to drive sheep shearing unit.Obvious, in different electrical equipments
In, due to operating condition difference, usually there is different requirements to motor.However, current shear generally uses general direct current
Machine, this result in current shear in use regular appearance kill, easily short circuit the problems such as.
Based on above-mentioned status, applicant devises the direct current generator for being specially applicable in shear.The major design of the motor is thought
Road is to improve motor torque.In the prior art, the main means for improving torque are to improve air-gap flux and current of electric.So
And in development, it has been found that in existing motor, if improve air-gap flux and current of electric not
But cannot effectively improve torque, and can because electric current increase to lead to that the motor feels hot serious, vibration and noise also it is corresponding substantially
Degree increases.
Summary of the invention
It is provided a kind of in the feelings for improving torque it is an object of the invention to avoid above-mentioned shortcoming in the prior art
Under condition, it can effectively avoid electric current from being significantly increased and lead to that the motor feels hot serious and vibration and noise also accordingly increase considerably
The problem of.
Invention thinking of the invention is: applicant is by analysis, it is believed that the main original of problem described in background technique occurs
Because being that the thickness of shell of current motor and the thickness of magnetite mismatch.The shell and magnetite of motor constitute stator together, wherein
Shell is the magnetic yoke of stator, and general motor is lower to torque request at present, therefore will not cause magnetic circuit full relatively thin shell
With, therefore in design of electrical motor, the protections needs such as shock resistance are only usually considered when designing the thickness of electric machine casing, are not considered
To its influence to magnetic flux.So the applicant redesigns electric machine casing, to avoid it from influencing magnetic circuit and lead to magnetic circuit
Saturation, and then the increase, temperature rising, noise increase and the motor oscillating that avoid current of electric unreasonable become strong problem.
The object of the invention is achieved through the following technical solutions:
A kind of direct current generator including casing, is set to the magnetite of casing inner wall and is set to the rotor of chassis cavity, the casing
Thickness and the magnetite thickness ratio be 1/2.2 to 1/2.5.
Wherein, the thickness ratio of the thickness of the casing and the magnetite is 1/2.35.
Wherein, the casing with a thickness of 1.1-1.3mm.
Wherein, the casing thickness is 1.2mm, and the magnetite is with a thickness of 2.7-3.0mm.
Wherein, the rotor includes shaft, the rotor core for being fixed on shaft and the coiling packet for being wound in rotor core, institute
It states rotor core to be formed by silicon steel sheet tinertoy, the silicon steel sheet is greater than with a thickness of 0.4mm-0.6mm, the retentivity of the tinertoy
15kgfMin。
Wherein, the rotor core includes at least 5 winding slots.
Wherein, the motor front end is provided with drive end bearing bracket, and the drive end bearing bracket is fixed with the carbon crystal for connecting power pole, institute
It states shaft front end and is connected with the commutator that can be abutted with carbon crystal.
Wherein, steel of the commutator by silver content not less than 5 ‰ are made.
A kind of shearing machine is also provided, including direct current generator and the sheep shearing unit driven by the direct current generator, feature exists
In: the direct current generator is direct current generator described in any one of claim 1-8, and the direct current generator is in maximum power item
Under part, torque is not less than 250g.cm, and electric current is not higher than 0.9 Amps.
Wherein, for the direct current generator under full power condition, torque is 275 g.cm, electric current 0.85Amps.
Beneficial effects of the present invention: the present invention provides direct current generator due to setting the thickness of shell to and the magnetite
Thickness ratio is 1/2.2 to 1/2.5 so that shell as magnetic yoke can sufficient conduct magnetic field, magnetic circuit will not easily reach
Saturation state；And then avoid because electric current caused by magnetic circuit saturation rises in vain and unreasonable increase, it also avoids in temperature
It rises, noise increases and motor oscillating becomes strong problem.And the shearing machine provided accordingly, motor is under full power condition, energy
Enough realize that torque is not less than 250g.cm, electric current is not higher than 0.9 Amps, therefore can more adapt to this application scenarios of cropping,
Effectively avoid the problems such as killing of shearing machine.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the decomposition diagram of direct current generator of the invention.
Include in Fig. 1:
1 --- --- --- --- cup scholar cover, 5 --- limit meson, 6 --- copper Jie of ball cup scholar, 4 of bakelite meson, 3 of shell, 2
Son, 7 --- shaft, 8 --- pressure-sensitive, 9 --- commutator, 10 --- grease proofing meson, 11 --- drive end bearing bracket, 12 --- carbon crystal,
13 --- --- --- magnetite, 16 --- coiling packet, 18 --- rotor cores of catapult part, 15 of connecting bracket, 14.
Specific embodiment
The invention will be further described with the following Examples.
The present invention provides a kind of shearing machine, which can be used for sheepshearing, can be used for other similar cut
Hair field.The shearing machine includes direct current generator and the sheep shearing unit by direct current generator driving.The parameter of direct current generator is as follows:
Certainly, according to actual needs, the parameter of the direct current generator can be finely adjusted, such as under full power condition,
As long as torque is greater than 250g.cm, electric current is maintained in 0.9AMPS.
For the direct current generator, specific embodiment includes shell 1 and the magnetic for being set to 1 inner wall of shell as shown in Figure 1:
Stone 15, shown magnetite 15 is supported by being set to two catapult parts 14 inside shell 1, so as to be close to the inner wall of shell 1.
Rotor is provided in the inner cavity of shown shell 1, the rotor includes shaft 7, the rotor core 18 for being fixed on shaft 7
With the coiling packet 16 for being wound in rotor core 18, rotor core 18 is formed by silicon steel sheet tinertoy, and silicon steel sheet is with a thickness of 0.4mm-
0.6mm, optimal to use 0.5mm, the retentivity of tinertoy is greater than 15kgfMin.Rotor core 18 includes 5 winding slots, coiling packet 16
It is wound in winding slot.The front end of shaft 7 is successively arranged with pressure-sensitive 8, commutator 9, grease proofing meson 10, limit meson 5, cup scholar
Cover 4 and ball cup cover, the rear end of shaft 7 are successively arranged with copper meson 6, limit meson 5, cup scholar cover 4, ball cup scholar 3 and bakelite meson
2.Above-mentioned pressure-sensitive 8, grease proofing meson 10, limit meson 5, cup scholar cover 4, ball cup cover, copper meson 6 and bakelite meson 2 are all made of motor
General component in field, specific relative positional relationship can also refer to existing electric machine structure, not another herein
One repeats.It should be noted that wherein steel of the commutator 9 using silver content not less than 5 ‰ are made.It is studied through inventor, in height
Under the requirement of torque, direct current generator operation can be effectively reduced using commutator 9 made of steel of the silver content not less than 5 ‰
Noise in the process, and 9 service life of commutator is substantially extended.
The front end of shell 1 is sealed using drive end bearing bracket 11, and there are two connecting bracket 13, connecting brackets 13 for setting on drive end bearing bracket 11
For fixing carbon crystal 12, carbon crystal 12 with the positive and negative anodes of power supply for connecting, and commutator 9 can be abutted with carbon crystal 12, in this way
When commutator 9 rotates under the drive of shaft 7, commutator 9 will periodically switch the contact mode with carbon crystal 12, thus all
The current direction of phase property changed in coiling packet 16.The present embodiment is used as brush using the carbon crystal 12 of wear-resisting type, therefore brush is more
Add wear-resisting, electric conductivity is more preferable, does not also allow oxidizable and rotten or deformation, can effectively improve the service life of motor.In addition,
Carbon crystal 12 is fixed to drive end bearing bracket 11 by connecting bracket 13, the connecting bracket 13 and drive end bearing bracket 11 and is detachably connected, and
The plug division that can be plugged to drive end bearing bracket 11 is extended in its left side, and main part is also formed with and can detachably connect with carbon crystal 12
The connection position connect, therefore, when needing replacing when the abrasion of carbon crystal 12 is excessively serious, the progress that this motor can be more convenient is more
It changes.
In the present embodiment, shell 1 with a thickness of 1.2mm, magnetite 15 with a thickness of 2.85mm.Certainly, according to actual needs,
The two size can appropriate adjustment, as long as the thickness ratio that both can be enabled be 1/2.2 to 1/2.5(it is optimal be thickness ratio be 1/
2.35), and then ensure that magnetic circuit will not be saturated.And motor strength demand and overall volume, weight etc. is combined to consider, recommend shell
Body 1 is with a thickness of 1.1-1.3mm.If 1 thickness of shell takes optimal size 1.2mm, it is recommended that magnetite 15 is with a thickness of 2.7-3.0mm.
Compared with prior art, the present embodiment provides direct current generators due to setting the thickness of shell 1 to and the magnetite
15 thickness ratio be 1/2.35 so that shell 1 as magnetic yoke can sufficient conduct magnetic field, magnetic circuit will not easily reach full
And state；And then avoid because electric current caused by magnetic circuit is saturated rises and unreasonable increase in vain, also avoid temperature rising,
Noise increases and motor oscillating becomes strong problem.And the shearing machine provided accordingly, motor is under full power condition, Neng Goushi
Existing torque 275g.cm, electric current 0.85Amps, therefore this application scenarios of cropping can be more adapted to, effectively avoid cropping
The problems such as killing of machine.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (10)
1. a kind of direct current generator, it is characterised in that: including casing, be set to the magnetite of casing inner wall and be set to chassis cavity
The thickness ratio of rotor, the thickness of the casing and the magnetite is 1/2.2 to 1/2.5.
2. a kind of direct current generator as described in claim 1, it is characterised in that: the thickness of the thickness of the casing and the magnetite
Than being 1/2.35.
3. a kind of direct current generator as described in claim 1, it is characterised in that: the casing with a thickness of 1.1-1.3mm.
4. a kind of direct current generator as described in claim 1, it is characterised in that: the casing thickness is 1.2mm, and the magnetite is thick
Degree is 2.7-3.0mm.
5. a kind of direct current generator as described in claim 1, it is characterised in that: the rotor includes shaft, is fixed on shaft
Rotor core and the coiling packet for being wound in rotor core, the rotor core are formed by silicon steel sheet tinertoy, the silicon steel sheet thickness
For 0.4mm-0.6mm, the tinertoy retentivity is greater than 15kgfMin.
6. a kind of direct current generator as claimed in claim 5, it is characterised in that: the rotor core includes at least 5 winding slots.
7. a kind of direct current generator as claimed in claim 5, it is characterised in that: the motor front end is provided with drive end bearing bracket, described
Drive end bearing bracket is fixed with the carbon crystal for connecting power pole, and the shaft front end is connected with the commutator that can be abutted with carbon crystal.
8. a kind of direct current generator as claimed in claim 7, it is characterised in that: the commutator is not less than 5 ‰ by silver content
Steel are made.
9. a kind of shearing machine, including direct current generator and the sheep shearing unit driven by the direct current generator, it is characterised in that: described straight
Galvanic electricity machine is direct current generator described in any one of claim 1-8, and the direct current generator is under full power condition, torque
Not less than 250g.cm, electric current is not higher than 0.9 Amps.
10. a kind of shearing machine as described in claim 1, which is characterized in that the direct current generator turns under full power condition
Square is 275 g.cm, electric current 0.85Amps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033611.0A CN109067058A (en) | 2018-09-05 | 2018-09-05 | A kind of direct current generator and the shearing machine based on the motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033611.0A CN109067058A (en) | 2018-09-05 | 2018-09-05 | A kind of direct current generator and the shearing machine based on the motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109067058A true CN109067058A (en) | 2018-12-21 |
Family
ID=64759675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811033611.0A Pending CN109067058A (en) | 2018-09-05 | 2018-09-05 | A kind of direct current generator and the shearing machine based on the motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109067058A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203762A (en) * | 2019-06-26 | 2019-09-06 | 江苏华峰自然纤维制品有限公司 | A kind of coiling deflector roll of the anti-twisted wire of sisal fiber shearing machine |
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| JP2010193568A (en) * | 2009-02-16 | 2010-09-02 | Daido Electronics Co Ltd | Integral assembly composed of motor case and magnet in electric motor, and method of manufacturing the same |
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| JP2014171349A (en) * | 2013-03-05 | 2014-09-18 | Canon Electronics Inc | Electromagnetic rotary device |
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| CN206611319U (en) * | 2017-03-03 | 2017-11-03 | 浙江万冠电机有限公司 | high-speed DC motor |
| CN107516952A (en) * | 2016-06-17 | 2017-12-26 | 德昌电机(深圳)有限公司 | Permanent magnet DC motor |
| CN209217832U (en) * | 2018-09-05 | 2019-08-06 | 揭阳市汇宝昌电器有限公司 | A kind of direct current generator and the shearing machine based on the motor |
-
2018
- 2018-09-05 CN CN201811033611.0A patent/CN109067058A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010193568A (en) * | 2009-02-16 | 2010-09-02 | Daido Electronics Co Ltd | Integral assembly composed of motor case and magnet in electric motor, and method of manufacturing the same |
| CN102647068A (en) * | 2011-02-18 | 2012-08-22 | 德昌电机(深圳)有限公司 | Permanent-magnetic direct-current motor |
| JP2014171349A (en) * | 2013-03-05 | 2014-09-18 | Canon Electronics Inc | Electromagnetic rotary device |
| CN105990978A (en) * | 2015-01-28 | 2016-10-05 | 德昌电机(深圳)有限公司 | Permanent magnet DC motor |
| CN107516952A (en) * | 2016-06-17 | 2017-12-26 | 德昌电机(深圳)有限公司 | Permanent magnet DC motor |
| CN206226195U (en) * | 2016-08-31 | 2017-06-06 | 江门马丁电机科技有限公司 | A kind of permanent magnet DC motor and food cooking machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203762A (en) * | 2019-06-26 | 2019-09-06 | 江苏华峰自然纤维制品有限公司 | A kind of coiling deflector roll of the anti-twisted wire of sisal fiber shearing machine |
| CN110203762B (en) * | 2019-06-26 | 2024-03-19 | 江苏华峰自然纤维制品有限公司 | Wire winding deflector roll of preventing stranded conductor of sisal fiber shearing machine |
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