CN104112963A - Motor carbon brush assembly - Google Patents
Motor carbon brush assembly Download PDFInfo
- Publication number
- CN104112963A CN104112963A CN201310134879.4A CN201310134879A CN104112963A CN 104112963 A CN104112963 A CN 104112963A CN 201310134879 A CN201310134879 A CN 201310134879A CN 104112963 A CN104112963 A CN 104112963A
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- carbon brush
- holder
- motor
- axle center
- motor assembly
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Abstract
The invention relates to a motor carbon brush assembly that is disposed on a motor equipped with a shaft. The shaft comprises a first end and a second end. An operating machine table is installed on the first end and comprises a carbon brush fixing seat and a centrifugal fixing seat. The carbon brush fixing seat is fixedly arranged on a side of the motor and is equipped with at least one carbon brush. The centrifugal fixing seat is equipped with a wall portion and is disposed on the second end of the shaft in a locked manner. The centrifugal fixing seat is arranged between the shaft and the carbon brush fixing seat. The carbon brush contacts the wall portion. Thus, the carbon brush indirectly contacts the shaft so as to be prevented from abrading the shaft.
Description
Technical field
The present invention, relevant for a kind of carbon brush for motor, in more detail, is with the designed carbon brush for motor assembly of the mode in indirect contact axle center, can promote the life-span of axle center of motor.
Background technology
Press, commonly use motor in the process of operation, in under normal circumstances, contact-making surface between axle center of motor and bearing track can be bestowed lubricating oil film, to there is the effect of insulation, yet, between diaxon socket end or axle center of motor and bearing in the existence that has shaft current and shaft voltage, long-time running meeting causes the lubricating layer of bestowing bearing to start aging, and can destroy the stability of oil film, and the life-span of reducing bearing, wherein, when shaft voltage is increased to certain numerical value, especially when motor just starts, lubricating oil film in bearing is stable formation not also, shaft voltage will puncture oil film and produce arc discharge, form loop, shaft current will be passed through from the metal contact of bearing and axle center of motor, because this metal contact is very small, therefore, the current density of this metal contact of flowing through seems larger, in moment, produce high temperature, even make bearing partial burnt-out, to such an extent as to affect useful life of bearing, simultaneously, due to bearing damage and replacing bring directly and indirect economic loss also can not subtotal.
For improving above-mentioned situation, can utilize carbon brush for the effect of motor, carbon brush not only can be derived the electric current of axle center of motor, have more the function of ground protection and the change sense of current, therefore, for avoiding shaft voltage and shaft current to cause the damage of motor bearing, known technological means is to be electrically connected at axle center of motor by carbon brush, and then shaft current is derived, refer to shown in Fig. 1, Fig. 1 is the structural representation that known carbon brush for motor is assembled in motor, and the carbon brush for motor of commonly using is in order to be arranged at a motor 1 with an axle center 2, and axle center 2 has a first end 2a and one second end 2b, and install a machines 3 in first end 2a, and commonly use carbon brush for motor, include: a carbon brush for motor 4, it is locked on a side of motor 1, and be arranged at motor 1 and machines 3 Zhi Jian ﹔ mono-carbon brush 5, it is arranged at carbon brush for motor 4, and be contacted with the first end 2a in axle center 2.
Yet, the carbon brush for motor of commonly using is in the middle of the configuration of motor, it has following shortcoming: its one, the contact-making surface of carbon brush 5 is arranged at the first end 2a in axle center 2 in the mode directly contacting, and the axle center 2 of motor 1 is in the lower Mo Sun ﹔ another one that easily causes axle center 2 to suffer carbon brush 5 of long-term running, the carbon dust that wearing and tearing carbon brush 5 produces, due to without stop configurations, easily because rotating formed air-flow intrusion bearing, cause bearing to damage consumption ﹔ one again, because known carbon brush for motor 4 and machines 3 are all installed in the same one end in axle center 2, the assembling that often interferes with machines 3 brings inconvenience, therefore, motor 1 is just too narrow with the spacing of machines 3, cause being not easy to adding carbon brush 5 for shaft voltage and shaft current, to derive fast shaft voltage and shaft current.
Summary of the invention
Because above-mentioned shortcoming the object of the present invention is to provide a kind of carbon brush for motor assembly, it is simple in structure, and handling are convenient, can, by the mode in indirect contact axle center, promote the life-span of bearing.
For achieving the above object, the invention discloses a kind of carbon brush for motor assembly, it is arranged at a motor with an axle center, and this axle center has a first end and one second end, and this first end connects a machines, it is characterized in that this carbon brush for motor assembly includes:
One carbon brush holder, this carbon brush holder is fixedly arranged on this motor, and in this carbon brush holder arrange at least one Tan Shua ﹔ and
One goes out heart holder, and this goes out heart holder and has a wall portion, and this goes out the second end that heart holder is fixedly arranged on this axle center, and is arranged between this axle center and this carbon brush holder and this carbon brush is contacted with the wall portion that this goes out heart holder.
Wherein, this carbon brush holder has a perforation, and this goes out heart holder and corresponding to this perforation, be provided with one and go out cardiac prominence post, and this goes out cardiac prominence post and is arranged in this perforation.
Wherein, this cardiac prominence post that goes out that goes out heart holder connects a decoder.
Wherein, this wall portion periphery stretches out a baffle plate is set with vertical mode.
Wherein, more comprise that one is arranged at the seal of this second end.
Wherein, the outer ring of the seal and inner ring are equipped with respectively a bulge loop, to form a groove.
Wherein, the external diameter of the seal is greater than the external diameter of this stop tab.
Wherein, the external diameter of this stop tab is aligned in the groove of the seal.
Wherein, this carbon brush holder arranges this carbon brush of at least one confession and is arranged in the containing hole in it.
By said structure, carbon brush for motor assembly of the present invention has been realized following technique effect:
One, its contact-making surface by carbon brush changes and is located at out heart holder, and mode that just can indirect contact is electrically connected at axle center, compared to the known problem that can directly get rid of carbon brush abrasion axle center, and then extends life-span in axle center.
Two, it stretches out a baffle plate is set with vertical mode in wall periphery, as one, get rid of circle design, with the carbon dust that prevents from producing because of carbon brush abrasion, invade the loss that bearing was caused, in addition, the present invention is separately provided with a seal with the effect of blocking, and sealing ring is located to second end in axle center, to strengthen preventing the intrusion of carbon dust, more reach the effect of double protection.
Three, by changing carbon brush holder, be arranged at the direction on motor, carbon brush holder and machines are installed in respectively to the second end and the first end in axle center, compared to the machines of known carbon brush for motor and operation purposes, be installed in same one end of axle center of motor, just can solve the inconvenience that often interferes with machines in assembling process, also the quantity of carbon brush be can conveniently increase, and then shaft voltage and shaft current derived fast.
Accompanying drawing explanation
Fig. 1: for commonly using the generalized section of carbon brush for motor.
Fig. 2: be the schematic appearance of carbon brush for motor assembly of the present invention.
Fig. 3: be the decomposing schematic representation of carbon brush for motor assembly of the present invention.
Fig. 4: be the generalized section of carbon brush for motor assembly of the present invention.
Fig. 5: be the partial enlarged drawing of Fig. 4.
Fig. 6: be another preferred embodiment of carbon brush for motor assembly of the present invention.
Fig. 7: for the present invention goes out the combination schematic diagram of heart holder and decoder.
Embodiment
For ease of explanation the present invention represented central idea in foregoing invention content one hurdle, hereby with specific embodiment, express.In embodiment, various different objects are in the ratio that is suitable for enumerating explanation, but not in the ratio of actual components with draw, close first chat bright.
Refer to shown in Fig. 2～Fig. 4, Fig. 2 is the schematic appearance of carbon brush for motor assembly of the present invention, and Fig. 3 is decomposing schematic representation of the present invention, and Fig. 4 is generalized section of the present invention.Carbon brush for motor assembly of the present invention, in order to be arranged at a motor 10 with an axle center 11, and axle center 11 has a first end 11a and one second end 11b, and first end 11a is in order to be hinged with a machines 20, and it includes:
One carbon brush holder 30, its setting has a containing hole 31 and a perforation 32 at least, and a plurality of bolting element 33 is arranged in carbon brush holder 30 to be locked in a side of motor 10.
Have a carbon brush 40 at least, its correspondence is fastened in the containing hole 31 of carbon brush holder 30, in the present embodiment, in carbon brush holder 30, for being provided with 1 containing hole 31, and corresponding 1 carbon brush 40 is set.
One goes out heart holder 50, it has a wall portion 51, and in wall portion 51 peripheries, with vertical mode, stretch out to encircle and establish a baffle plate 52, and in the central authorities that go out heart holder 50, be convexly equipped with one and go out cardiac prominence post 53, can be in order to be arranged in the perforation 32 of carbon brush holder 30 and go out cardiac prominence post 53, and be arranged in out heart holder 50 to be locked in the second end 11b in axle center 11 with a plurality of telescopic screws 54, wherein, go out between the second end 11b and carbon brush holder 30 that heart holder 50 is arranged at axle center 11, and can make carbon brush 40 be arranged in containing hole 31 time, carbon brush 40 just can be in order to contact out the wall portion 51 of heart holder 50.
One seal 60, it is arranged at the second end 11b in axle center 11, and the external diameter of seal 60 is greater than the external diameter of stop tab 52, and is equipped with respectively a bulge loop 61 in outer ring and the inner ring of seal 60, and then forms a groove 62, uses the effect of blocking dust that produces.
More than be the general introduction of structure of the present invention and shape, and combination kenel of the present invention and the effect principle that can reach be presented below:
Refer to shown in Fig. 4 and Fig. 5, Fig. 4 is generalized section of the present invention, Fig. 5 is the partial enlarged drawing of Fig. 4, in the present invention, carbon brush holder 30 and machines 20 are installed in respectively to the second end 11b and the first end 11a in axle center 11, and go out heart holder 50 and carbon brush holder 30 and in the solid mode of spiral shell, be locked on the second end 11b in axle center 11 and a side of motor 10 respectively, therefore, when motor 10 running, go out heart holder 50 can be with the start in axle center 11 with interlock, carbon brush holder 30 is a side that is fixed on motor 10, and will be installed in carbon brush 40 on carbon brush holder 30 and be contacted with out the wall portion 51 of heart holder 50, and in going out the process of heart holder 50 fast turn-arounds, carbon brush 40 is contacted with the carbon dust that 51 wearing and tearing of wall portion produce, can first accumulate on the upright position between wall portion 51 and baffle plate 52, continue in rotation, just can the carbon dust of accumulation be thrown away because of the active force of tangential direction, to avoid carbon dust, invade bearing, this is for first protection She Ji ﹔ is in the present invention, the second end 11b in axle center 11 is provided with an endless groove corresponding to the periphery of motor 10 openings, seal 60 can be arranged to endless groove and be sheathed on the second end 11b in axle center 11, because the external diameter of seal 60 is greater than the external diameter of stop tab 52, and the external diameter of stop tab 52 can be aligned in the groove 62 of seal 60, and the groove 62 that makes seal 60 is with towards being arranged at carbon brush 40, can make carbon dust be easy to snap in groove 62 in splash process and be unlikely to enter bearing, and then reinforcement prevents the intrusion of carbon dust, this is second protection Design, accordingly, the present invention just can reach the effect of double protection.
Refer to shown in Fig. 6, Fig. 6 is another preferred embodiment of the present invention, in the present invention, carbon brush holder 30 can be arranged to a plurality of containing holes 31, and according to the large I of shaft voltage and shaft current, a plurality of carbon brush 40 are set, in another preferred embodiment of the present invention, carbon brush holder 30 is set to 4 containing holes 31 with subtend, and corresponding containing hole 31 arranges 4 carbon brush 40, by 40 designs of a plurality of carbon brush, can rapidly shaft voltage and shaft current be derived, with avoid too high shaft voltage and shaft current shorten bearing useful life and arround the damage of electronic components.
Refer to shown in Fig. 7, Fig. 7 is the combination schematic diagram that the present invention goes out heart holder and decoder, go out heart holder 50 set go out cardiac prominence post 53 in order to connect a decoder 70, to change the amount of spin in axle center 11 into electric signal, in the present invention, go out cardiac prominence post 53 and can select more to swap out heart holder 50 according to the installation axle hole of decoder 70, compared to known, all decoder 70 is mounted to axle center 11, heart holder 50 only must more swap out, must not change axle center 11 because of the installation dimension size of decoder 70, to simplify the manual process of changing decoder 70.
In sum, carbon brush for motor assembly of the present invention, by changing carbon brush holder, be arranged at the direction on motor, just can directly solve the inconvenience that must often interfere with machines in assembling process, more remove the spacing of motor case and machines, by this, just can select according to the size of shaft voltage and shaft current the installation quantity of carbon brush, yet with improve axle center and bearing useful life and arround Huai ﹔ of Sun of electronic components, more be used between axle center and carbon brush and add and take on heart holder, the contact-making surface of carbon brush is arranged at out to the wall portion of heart holder, mode with indirect contact is electrically connected at axle center, just can directly get rid of the Wen Ti ﹔ in carbon brush abrasion axle center in addition, utilize baffle plate and seal as one, to get rid of circle design and respectively and block design, with the carbon dust that prevents from producing because of carbon brush abrasion, invade the loss that bearing was caused, more reach the effect of double protection.
Although the present invention explains with a most preferred embodiment, be skillful in this skill person and can do various multi-form changes not departing under the present invention spirit and category.Above illustrated embodiment is only in order to the present invention to be described, non-in order to limit the scope of the invention.Such as do not disobey various modifications or the change that spirit of the present invention is engaged in, all belong to the present patent application the scope of the claims.
Claims (9)
1. a carbon brush for motor assembly, it is arranged at a motor with an axle center, and this axle center has a first end and one second end, and this first end connects a machines, it is characterized in that this carbon brush for motor assembly includes:
One carbon brush holder, this carbon brush holder is fixedly arranged on this motor, and in this carbon brush holder arrange at least one Tan Shua ﹔ and
One goes out heart holder, and this goes out heart holder and has a wall portion, and this goes out the second end that heart holder is fixedly arranged on this axle center, and is arranged between this axle center and this carbon brush holder and this carbon brush is contacted with the wall portion that this goes out heart holder.
2. carbon brush for motor assembly as claimed in claim 1, is characterized in that, this carbon brush holder has a perforation, and this goes out heart holder and corresponding to this perforation, be provided with one and go out cardiac prominence post, and this goes out cardiac prominence post and is arranged in this perforation.
3. carbon brush for motor assembly as claimed in claim 2, is characterized in that, this cardiac prominence post that goes out that goes out heart holder connects a decoder.
4. carbon brush for motor assembly as claimed in claim 1, is characterized in that, this wall portion periphery stretches out a baffle plate is set with vertical mode.
5. carbon brush for motor assembly as claimed in claim 4, is characterized in that, more comprises that one is arranged at the seal of this second end.
6. carbon brush for motor assembly as claimed in claim 5, is characterized in that, the outer ring of the seal and inner ring are equipped with respectively a bulge loop, to form a groove.
7. carbon brush for motor assembly as claimed in claim 6, is characterized in that, the external diameter of the seal is greater than the external diameter of this stop tab.
8. carbon brush for motor assembly as claimed in claim 7, is characterized in that, the external diameter of this stop tab is aligned in the groove of the seal.
9. carbon brush for motor assembly as claimed in claim 1, is characterized in that, this carbon brush holder arranges this carbon brush of at least one confession and is arranged in the containing hole in it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310134879.4A CN104112963A (en) | 2013-04-18 | 2013-04-18 | Motor carbon brush assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310134879.4A CN104112963A (en) | 2013-04-18 | 2013-04-18 | Motor carbon brush assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104112963A true CN104112963A (en) | 2014-10-22 |
Family
ID=51709655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310134879.4A Pending CN104112963A (en) | 2013-04-18 | 2013-04-18 | Motor carbon brush assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104112963A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050285463A1 (en) * | 2004-06-29 | 2005-12-29 | Hockaday Shepard L | Brush assemblies |
| CN2812390Y (en) * | 2005-08-10 | 2006-08-30 | 陈亚强 | Coaxial-rotating power supply and power output machine |
| CN2826806Y (en) * | 2005-09-17 | 2006-10-11 | 冯国雄 | Integration starting magnetor |
| CN201044408Y (en) * | 2007-05-16 | 2008-04-02 | 张式银 | Curve outward type motor |
| US20110023057A1 (en) * | 2006-10-03 | 2011-01-27 | Nidec Corporation | Brushless motor, and disk drive equipped with the same |
| CN203218675U (en) * | 2013-04-18 | 2013-09-25 | 永元电机(苏州)有限公司 | Motor carbon brush assembly |
-
2013
- 2013-04-18 CN CN201310134879.4A patent/CN104112963A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050285463A1 (en) * | 2004-06-29 | 2005-12-29 | Hockaday Shepard L | Brush assemblies |
| CN2812390Y (en) * | 2005-08-10 | 2006-08-30 | 陈亚强 | Coaxial-rotating power supply and power output machine |
| CN2826806Y (en) * | 2005-09-17 | 2006-10-11 | 冯国雄 | Integration starting magnetor |
| US20110023057A1 (en) * | 2006-10-03 | 2011-01-27 | Nidec Corporation | Brushless motor, and disk drive equipped with the same |
| CN201044408Y (en) * | 2007-05-16 | 2008-04-02 | 张式银 | Curve outward type motor |
| CN203218675U (en) * | 2013-04-18 | 2013-09-25 | 永元电机(苏州)有限公司 | Motor carbon brush assembly |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141022 |
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| RJ01 | Rejection of invention patent application after publication |