CN103166371A - Permanent magnetic direct-current motor for circuit breaker base plate movement - Google Patents
Permanent magnetic direct-current motor for circuit breaker base plate movement Download PDFInfo
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- CN103166371A CN103166371A CN2013101228966A CN201310122896A CN103166371A CN 103166371 A CN103166371 A CN 103166371A CN 2013101228966 A CN2013101228966 A CN 2013101228966A CN 201310122896 A CN201310122896 A CN 201310122896A CN 103166371 A CN103166371 A CN 103166371A
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- base plate
- rotating shaft
- planet carrier
- shaft
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 28
- 239000000969 carrier Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The invention relates to a permanent magnetic direct-current motor for circuit breaker base plate movement. The permanent magnetic direct-current motor comprises a cylindrical shell, wherein an end cover and a connecting cover are arranged at two ends of the shell respectively; a rotating shaft is arranged on the axis of the shell; a motor rotor is fixed on the rotating shaft in the shell; and a motor stator is fixed on the inner wall of the shell. A bottom plate is fixed inside the end cover, a conductive sheet is arranged on each of two sides of the rotating shaft on the bottom plate, a brush carrier is arranged on each conductive sheet, a carbon brush is arranged in each brush carrier, and a commutator is fixed on the rotating shaft corresponding to each carbon brush. The permanent magnetic direct-current motor is characterized in that a column is arranged on one side of each brush carrier, a torsion spring is sleeved on each column, one end of each torsion spring is fixed on the bottom plate, and the other end of each torsion spring extends into the brush carrier and presses against the carbon brush. Two insert-type connectors are arranged on each conductive sheet, wherein one insert-type connector is connected with the corresponding carbon brush through a lead, and the other insert-type connector is connected with a leading-out wire; and the leading-out wires penetrate through the end cover and extend outwards. The permanent magnetic direct-current motor has high output power under the restriction that the outside diameter is not more than 42 millimeters.
Description
Technical field
The present invention relates to a kind of motor, is the permanent magnet direct current motor of mobile high-low pressure circuit breaker chassis special specifically.
Background technology
The high and low pressure circuit breaker is one of important electric elements in the high and low pressure circuit, and its Main Function is that circuit is controlled.Circuit breaker is used for being switched on or switched off circuit when normal operation, failure condition open circuit rapidly under the effect of protective relaying device is connected short circuit current under special circumstances (when automatic reclosing is to the faulty line) reliably.The high and low pressure circuit breaker is to be switched on or switched off the dedicated electric appliance of high and low pressure circuit under normal or failure condition.
At present, the high and low pressure circuit breaker in use, all need it is arranged on chassis special, and be to match by slideway and haulage gear between this chassis and switch combination cabinet, the action by haulage gear drives the chassis and the high and low pressure circuit breaker slides into corresponding position along switch combination slideway cashier's office in a shop together.If described haulage gear mainly is comprised of permanent magnet direct current motor and the reducing gear that is made of individual gear, and all being arranged on the chassis special of high and low pressure circuit breaker usually, takes out on frame permanent magnet direct current motor.According to the demand of present stage, the power output that the chassis special that is arranged on the high and low pressure circuit breaker is taken out the permanent magnet direct current motor on frame will satisfy 80 ~ 250W, output speed 50 ~ 60r/min, output torque 15 ~ 50Nm.Yet, in the prior art, the height space that the chassis special of high and low pressure circuit breaker is taken out frame all is no more than 42mm usually, and electronic being arranged on when the chassis is taken out on frame of DC is all to be transverse arrangement of turbo, therefore, the external diameter of permanent magnet direct current motor is subject to taking out the restriction of frame height space, must not surpass 42mm.Traditional permanent magnet direct current motor is divided into two kinds of brushless electric machine and brush motors.Brushless electric machine is as the term suggests be exactly that its inside does not have carbon brush, so the external diameter of its rotor is not subjected to the restriction of carbon brush position, can satisfy the motor external diameter and is no more than do under the prerequisite of 42mm large as much as possible, thereby satisfy the requirements of motor output.Yet brushless electric machine need to be equipped with special control module, and this just need to take additional space, and the job stability of brushless electric machine is relatively poor, and output has time-delay.Brush motor normally arranges base plate on the end cap of motor, and in the radial symmetric position of base plate, two carbon brush is set, and carbon brush all can radially outward compress along base plate, and is provided with commutator on the machine shaft between two carbon brush.Brush motor is compared with brushless electric machine, has the characteristics of working stability, output time-delay.Yet, traditional brush motor be all with spring or disc spring realize carbon brush to external compression, and wire and lead-out wire be all to use screw to fix, no matter spring, disc spring, or screw, it is installed all needs to take very large plane space, in the situation that external diameter is restricted, make the commutator brush track diameter supporting with it less, the external diameter of rotor is also little, thereby cause the power output of motor less, can't reach requirement.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of chassis of circuit breaker and moves and use permanent magnet direct current motor, and this permanent magnet direct current motor is no more than at external diameter under the restriction of 42mm, has higher power output.
For addressing the above problem, take following scheme:
Chassis of circuit breaker of the present invention moves the casing that comprises tubular with permanent magnet direct current motor, and an end of casing has end cap, and the other end has connection cover.Described end cap inboard is fixed with base plate, end cap, base plate and connection cover all have centre bore, and rotating shaft is arranged on centre bore, all are rotary shape between the centre bore of rotating shaft by bearing and end cap, connection cover and coordinate, gapped between the centre bore of rotating shaft and base plate, an end of the corresponding connection cover of rotating shaft extends.Be fixed with rotor in that section rotating shaft in casing, be fixed with motor stator on casing inner wall corresponding to rotor.In centre bore both sides, conducting strip is arranged all on described base plate, brush holder is all arranged on conducting strip, carbon brush is all arranged in brush holder, be fixed with commutator in rotating shaft corresponding to carbon brush.The center line of two carbon brush point-blank and this straight line through the base plate center, carbon brush can move radially along base plate on its corresponding brush holder.Be characterized on the base plate of described brush holder one side, cylinder being arranged all, on cylinder all cover torsion spring is arranged, equal limited location groove on base plate corresponding to cylindrical base, an end of torsion spring is placed in stopper slot.One side of described brush holder Correspondent cy linder has U-lag, and the openend of U-lag is the base plate center dorsad, and the other end of described torsion spring stretches into inner at brush holder and offsets along base plate outer face radially with carbon brush from U-lag.Be provided with two blade inserting joints on described conducting strip, carbon brush all is connected with a blade inserting joint on corresponding conducting strip by wire, and on conducting strip, another blade inserting joint all is connected with lead-out wire, and lead-out wire all penetrates end cap and extends.
The further improvement of the present invention scheme is to be fixed with reducing gear outside described connection cover, and this reducing gear comprises the housing of tubular, and the external diameter of housing equates with the external diameter of described casing, and both are arranged concentric.One end of described housing is arranged on connection cover, and the other end of housing has shaft-cup, and the center position of shaft-cup has axis hole.To shaft-cup one end, the first planet carrier, the second planet carrier and third planet frame are arranged successively from connection cover one end in described housing, one side of three corresponding connection covers of planet carrier is along circumferentially all being evenly equipped with planetary gear, one side center of the corresponding shaft-cup of the first planet carrier and the second planet carrier is fixed with gear, one side centre bit of the corresponding shaft-cup of third planet frame is equipped with output shaft, and output shaft stretches out in the axis hole of shaft-cup and both are rotary shape by bearing and coordinate.The end that described rotating shaft is stretched out outside connection cover is processed with outer teeth groove, rotating shaft meshes together by the planetary gear of outer teeth groove and the first planet carrier, the planetary gear of the gear of the first planet carrier and the second planet carrier meshes together, and the planetary gear of the gear of the second planet carrier and third planet frame meshes together.The inwall of described housing is processed with internal spline, and the planetary gear of described the first planet carrier, the second planet carrier and third planet frame all is engaged on this internal spline.
Take such scheme, have the following advantages:
because moving with permanent magnet direct current motor, chassis of circuit breaker of the present invention is provided with cylinder in brush holder one side of its end cap base plate, all overlap on cylinder torsion spring is arranged, and its wire and lead-out wire are all to fix by the blade inserting joint, the plane projection area of torsion spring and blade inserting joint is all very little, need not to take a lot of plane spaces during design, in the situation that external diameter is no more than 42mm, this motor is compared with traditional brush motor, can use the larger commutator of external diameter and rotor, thereby obtain higher power output, satisfy the requirement of power output 80 ~ 250W.Again this motor and reducing gear are used in conjunction with, the high rotating speed of this motor, low torque axis can be turned to the slow-speed of revolution, high moment of torsion, thereby reach output speed 50 ~ 60r/min, the requirement of output torque 15 ~ 50Nm.
Description of drawings
Fig. 1 is that chassis of circuit breaker of the present invention moves the structural representation with permanent magnet direct current motor;
Fig. 2 is the right view of end cap in Fig. 1, base plate and brush part;
Fig. 3 is that chassis of circuit breaker of the present invention moves with the solid of permanent magnet direct current motor and partly cuts open schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
As shown in Figure 1 to Figure 3, chassis of circuit breaker of the present invention moves with permanent magnet direct current motor and mainly is comprised of motor part and running part two parts.
Described motor section is divided the casing 3 that comprises tubular, and the left end of casing 3 has end cap 1, and right-hand member has connection cover 12.Described end cap 1 inboard is fixed with base plate 2, on end cap 1, base plate 2 and connection cover 12, centre bore is arranged all, rotating shaft 9 is arranged on centre bore, all being rotary shape between the centre bore of rotating shaft 9 by bearing and end cap 1, connection cover 12 coordinates, gapped between the centre bore of rotating shaft 9 and base plate 2, the right-hand member of rotating shaft 9 stretches out the right side at connection cover 12.Be fixed with rotor 11 in that section rotating shaft 9 in casing 3, be fixed with motor stator 10 on casing 3 inwalls of rotor 11 correspondences.In centre bore both sides, conducting strip 4 is arranged all on described base plate 2, brush holder 6 is all arranged on conducting strip 4, brush holder 6 is interior all carbon brush 7, is fixed with commutator 8 in the rotating shaft 9 of carbon brush 7 correspondences.The center line of two carbon brush 7 point-blank and this straight line through base plate 2 centers, carbon brush 7 can move radially along base plate 2 on its corresponding brush holder 6.On the base plate 2 of described brush holder 6 one sides, cylinder 23 is arranged all, all overlapping on cylinder 23 has torsion spring 24, equal limited location groove 26 on the base plate 2 of cylinder 23 bottom correspondences, and an end of torsion spring 24 is placed in stopper slot 26.One side of described brush holder 6 Correspondent cy linders 23 has U-lag 27, and the openend of U-lag 27 is base plate 2 centers dorsad, and the other end of described torsion spring 24 stretches into inner at brush holder 6 and offsets along base plate 2 outer face radially with carbon brush 7 from U-lag 27.Be provided with two blade inserting joints 5 on described conducting strip 4, carbon brush 7 all is connected with a blade inserting joint 5 on corresponding conducting strip 4 by wire, on conducting strip 4, another blade inserting joint 5 all is connected with lead-out wire 25, and lead-out wire 25 all penetrates end cap 1 and extends.
Described running part is the fixing reducing gears in connection cover 12 outsides, and this reducing gear comprises the housing 13 of tubular, and the external diameter of housing 13 equates with the external diameter of described casing 3, and both are arranged concentric.The left end of described housing 13 is arranged on connection cover 12, and the right-hand member of housing 13 has shaft-cup 16, and the center position of shaft-cup 16 has axis hole.The first planet carrier 20, the second planet carrier 19 and third planet frame 18 are from left to right arranged in described housing 13 successively, the left side of three planet carriers is along circumferentially all being evenly equipped with planetary gear 14, the center, right side of the first planet carrier 20 and the second planet carrier 19 is fixed with gear 15, the right side centre bit of third planet frame 18 is equipped with output shaft 17, output shaft 17 is structure as a whole with third planet frame 18, and output shaft 17 stretches out in the axis hole of shaft-cup 16 and both are rotary shape by bearing and coordinate.The right-hand member end of described rotating shaft 9 is processed with outer teeth groove 22, rotating shaft 9 meshes together by the planetary gear 14 of outer teeth groove 22 and the first planet carrier 20, the gear 15 of the first planet carrier 20 and the planetary gear 14 of the second planet carrier 19 mesh together, and the gear 15 of the second planet carrier 19 meshes together with the planetary gear 14 of third planet frame 18.The inwall of described housing 13 is processed with internal spline 21, and the planetary gear 14 of described the first planet carrier 20, the second planet carrier 19 and third planet frame 18 all is engaged on this internal spline 21.
In said structure, described end cap 1 all is by bolt with 13 of housings with 13 of housings, shaft-cup 16 with 3 of casings, connection cover 12 with 3 of casings, connection cover 12 and is fixedly connected with.
Claims (2)
1. chassis of circuit breaker moves and uses permanent magnet direct current motor, comprises the casing (3) of tubular, and an end of casing (3) has end cap (1), and the other end has connection cover (12); Described end cap (1) inboard is fixed with base plate (2), end cap (1), base plate (2) and connection cover (12) all have centre bore, rotating shaft (9) is arranged on centre bore, all being rotary shape between the centre bore of rotating shaft (9) by bearing and end cap (1), connection cover (12) coordinates, gapped between the centre bore of rotating shaft (9) and base plate (2), an end of the corresponding connection cover of rotating shaft (9) (12) extends; Be fixed with rotor (11) in that section rotating shaft (9) in casing (3), be fixed with motor stator (10) on casing (3) inwall of rotor (11) correspondence; Described base plate (2) is upper all has conducting strip (4) in centre bore both sides, and brush holder (6) is all arranged on conducting strip (4), and carbon brush (7) is all arranged in brush holder (6), is fixed with commutator (8) in rotating shaft (9) corresponding to carbon brush (7); The center line of two carbon brush (7) point-blank and this straight line through base plate (2) center, carbon brush (7) can move radially along base plate (2) on its corresponding brush holder (6); It is characterized in that on the base plate (2) of described brush holder (6) one sides, cylinder (23) being arranged all, all overlap on cylinder (23) torsion spring (24) is arranged, the upper equal limited location groove (26) of base plate (2) that cylinder (23) bottom is corresponding, an end of torsion spring (24) is placed in stopper slot (26); One side of described brush holder (6) Correspondent cy linder (23) has U-lag (27), the openend of U-lag (27) is base plate (2) center dorsad, and the other end of described torsion spring (24) stretches into inner at brush holder (6) and offsets along base plate (2) outer face radially with carbon brush (7) from U-lag (27); Be provided with two blade inserting joints (5) on described conducting strip (4), carbon brush (7) all is connected with a blade inserting joint (5) on corresponding conducting strip (4) by wire, upper another blade inserting joint (5) of conducting strip (4) all is connected with lead-out wire (25), and lead-out wire (25) all penetrates end cap (1) and extends.
2. chassis of circuit breaker as claimed in claim 1 moves and uses permanent magnet direct current motor, it is characterized in that being fixed with reducing gear outside described connection cover (12), this reducing gear comprises the housing (13) of tubular, the external diameter of housing (13) equates with the external diameter of described casing (3), and both are arranged concentric, one end of described housing (13) is arranged on connection cover (12), and the other end of housing (13) has shaft-cup (16), and the center position of shaft-cup (16) has axis hole, to shaft-cup (16) one ends, the first planet carrier (20) is arranged successively from connection cover (12) one ends in described housing (13), the second planet carrier (19) and third planet frame (18), one side of three corresponding connection covers of planet carrier (12) is along circumferentially all being evenly equipped with planetary gear (14), one side center of the first planet carrier (20) and the corresponding shaft-cup of the second planet carrier (19) (16) is fixed with gear (15), one side centre bit of the corresponding shaft-cup of third planet frame (18) (16) is equipped with output shaft (17), output shaft (17) stretches out in the axis hole of shaft-cup (16) and both are rotary shape by bearing and coordinate, the end that described rotating shaft (9) is stretched out outside connection cover (12) is processed with outer teeth groove (22), rotating shaft (9) meshes together by the planetary gear (14) of outer teeth groove (22) with the first planet carrier (20), the gear (15) of the first planet carrier (20) meshes together with the planetary gear (14) of the second planet carrier (19), and the gear (15) of the second planet carrier (19) meshes together with the planetary gear (14) of third planet frame (18), the inwall of described housing (13) is processed with internal spline (21), and the planetary gear (14) of described the first planet carrier (20), the second planet carrier (19) and third planet frame (18) all is engaged on this internal spline (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101228966A CN103166371A (en) | 2013-04-10 | 2013-04-10 | Permanent magnetic direct-current motor for circuit breaker base plate movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101228966A CN103166371A (en) | 2013-04-10 | 2013-04-10 | Permanent magnetic direct-current motor for circuit breaker base plate movement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103166371A true CN103166371A (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101228966A Pending CN103166371A (en) | 2013-04-10 | 2013-04-10 | Permanent magnetic direct-current motor for circuit breaker base plate movement |
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| Country | Link |
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| CN (1) | CN103166371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355138A (en) * | 2020-10-16 | 2021-02-12 | 江苏福吉特管业有限公司 | Pressure sensing feedback type ultrasonic electric pulse composite rolling processing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0105392B1 (en) * | 1982-09-29 | 1987-07-01 | Siemens Aktiengesellschaft | Brush holder box for an electro-commutator motor |
| CN101577462A (en) * | 2008-12-23 | 2009-11-11 | 无锡江南微电机厂 | Permanent-magnetic DC planetary reducer motor |
| CN202031808U (en) * | 2011-03-14 | 2011-11-09 | 瑞安市得业汽车部件有限公司 | Improved vehicle air conditioning blower |
| CN202424465U (en) * | 2012-02-13 | 2012-09-05 | 东阳市东政电机有限公司 | Motor for juicer |
| CN203151308U (en) * | 2013-04-10 | 2013-08-21 | 无锡市科鑫电机有限公司 | Permanent magnet direct current motor for moving chassis of circuit breaker |
-
2013
- 2013-04-10 CN CN2013101228966A patent/CN103166371A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0105392B1 (en) * | 1982-09-29 | 1987-07-01 | Siemens Aktiengesellschaft | Brush holder box for an electro-commutator motor |
| CN101577462A (en) * | 2008-12-23 | 2009-11-11 | 无锡江南微电机厂 | Permanent-magnetic DC planetary reducer motor |
| CN202031808U (en) * | 2011-03-14 | 2011-11-09 | 瑞安市得业汽车部件有限公司 | Improved vehicle air conditioning blower |
| CN202424465U (en) * | 2012-02-13 | 2012-09-05 | 东阳市东政电机有限公司 | Motor for juicer |
| CN203151308U (en) * | 2013-04-10 | 2013-08-21 | 无锡市科鑫电机有限公司 | Permanent magnet direct current motor for moving chassis of circuit breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355138A (en) * | 2020-10-16 | 2021-02-12 | 江苏福吉特管业有限公司 | Pressure sensing feedback type ultrasonic electric pulse composite rolling processing device |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20130619 |