CN209217832U - 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
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- CN209217832U CN209217832U CN201821449430.1U CN201821449430U CN209217832U CN 209217832 U CN209217832 U CN 209217832U CN 201821449430 U CN201821449430 U CN 201821449430U CN 209217832 U CN209217832 U CN 209217832U
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Abstract
The utility model provides direct current generator and the shearing machine based on the motor, the direct current generator is since the thickness of shell to be 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 0.9Amps, therefore can more adapt to this application scenarios of cropping, effectively avoids the problems such as killing of shearing machine.
Description
Technical field
The utility model 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.
Utility model content
The purpose of this utility model is that avoiding above-mentioned shortcoming in the prior art and providing a kind of in raising torque
In the case where, can effectively avoid electric current from being significantly increased and lead to that the motor feels hot serious and vibration and noise also it is corresponding significantly
The problem of increase.
The utility model thinking of the utility model is: applicant is by analysis, it is believed that problem described in background technique occurs
The main reason for be current motor thickness of shell and magnetite thickness mismatch.The shell and magnetite of motor constitute fixed together
Son, wherein shell is the magnetic yoke of stator, and general motor is lower to torque request at present, therefore will not cause relatively thin shell
Magnetic circuit saturation, therefore in design of electrical motor, usually the protections needs such as shock resistance are only considered when designing the thickness of electric machine casing,
Its influence to magnetic flux is not considered.So the applicant redesigns electric machine casing, to avoid it from influencing magnetic circuit and lead
Increase, temperature rising, noise increase and the motor oscillating for causing magnetic circuit saturation, and then avoiding current of electric unreasonable become strong and ask
Topic.
The utility model aim 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, described
The thickness ratio of the thickness of casing and the magnetite is 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 above-mentioned, and the direct current generator, under full power condition, torque is not less than
250g.cm, electric current are not higher than 0.9Amps.
Wherein, the direct current generator is under full power condition, torque 275g.cm, electric current 0.85Amps.
The utility model has the beneficial effects that the utility model provides direct current generator by setting the thickness of shell to and institute
State magnetite thickness ratio be 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, also avoid
Temperature rising, noise increase and motor oscillating becomes strong problem.And the shearing machine provided accordingly, motor is in maximum power item
Under part, torque can be realized not less than 250g.cm, electric current is not higher than 0.9Amps, therefore can more adapt to this application of cropping
Scene effectively avoids the problems such as killing of shearing machine.
Detailed description of the invention
Using attached drawing, the utility model is described in further detail, but the embodiment in attached drawing is not constituted to the utility model
Any restrictions for those of ordinary skill in the art without creative efforts, can also be according to following attached
Figure obtains other attached drawings.
Fig. 1 is the decomposition diagram of the direct current generator of the utility model.
Include in Fig. 1:
1 --- --- --- --- cup scholar cover, 5 --- limit meson, 6 --- copper of ball cup scholar, 4 of bakelite meson, 3 of shell, 2
Meson, 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 utility model is further described with the following Examples.
The utility model provides a kind of shearing machine, which can be used for sheepshearing, can be used for other similar
Cropping 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
It is shown:
Certainly, according to actual needs, the parameter of the direct current generator can be finely adjusted, such as in full power condition
Under, 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 is set to 1 inner wall of shell as shown in Figure 1:
Magnetite 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.Through utility model, people is studied,
Under the requirement of high torque (HT), direct current generator can be effectively reduced using commutator 9 made of steel of the silver content not less than 5 ‰
Noise in operational 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, (optimal be thickness ratio is 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 above embodiments are only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, this field it is general
Lead to it will be appreciated by the skilled person that can be with the technical solution of the present invention is modified or equivalently replaced, without departing from this
The spirit and scope of utility model technical solution.
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 0.9Amps.
10. a kind of shearing machine as claimed in claim 9, which is characterized in that the direct current generator turns under full power condition
Square is 275g.cm, electric current 0.85Amps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821449430.1U CN209217832U (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 |
|---|---|---|---|
| CN201821449430.1U CN209217832U (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 |
|---|---|
| CN209217832U true CN209217832U (en) | 2019-08-06 |
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ID=67453666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821449430.1U Active CN209217832U (en) | 2018-09-05 | 2018-09-05 | A kind of direct current generator and the shearing machine based on the motor |
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| CN (1) | CN209217832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067058A (en) * | 2018-09-05 | 2018-12-21 | 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 CN201821449430.1U patent/CN209217832U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067058A (en) * | 2018-09-05 | 2018-12-21 | 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 |
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