CN204794552U - Wheelchair motors with electromagnetism brake - Google Patents
Wheelchair motors with electromagnetism brake Download PDFInfo
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- CN204794552U CN204794552U CN201520443347.3U CN201520443347U CN204794552U CN 204794552 U CN204794552 U CN 204794552U CN 201520443347 U CN201520443347 U CN 201520443347U CN 204794552 U CN204794552 U CN 204794552U
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Abstract
The utility model discloses a wheelchair motors with electromagnetism brake, which comprises a motor shell body, still include carbon brush lid and speed reduction end cover, motor shaft's one end and gear reducer mesh mutually, the cover is equipped with electric motor rotor on motor shaft's the other end, still include, the electromagnetism end cover, the electromagnetism end cover forms closed third region with the carbon brush lid jointly, the electromagnetism end cover is provided with first arc opening, the carbon brush lid is passed to motor shaft's end, and it is provided with the electromagnetism brake to serve at this, the electromagnetism brake is gone up to rotate and is connected with the handle, first arc opening is passed to the upper end of handle, the handle lower extreme is equipped with the A cut -in point, the middle part of handle is equipped with second arc opening, link firmly in the electromagnetism brake pass second arc open -ended reference column with can with the B cut -in point of A cut -in point intercommunication. The utility model discloses in setting through electromagnetism brake, can realize the good intercommunication of A cut -in point and B cut -in point and break away from completely to reach motor shaft braking and driven mesh.
Description
Technical field
The utility model relates to wheelchair accessory field, especially relates to the wheel chair motor being provided with electromagnetic brake.
Background technology
Driving arrangement in electric wheelchair is for its scope of application, be divided into brush motor and brushless electric machine, whether the difference of brush motor and brushless electric machine is configured with conventional brush-commutator, have the commutation of brushless motor always by electrographite brush be arranged on epitrochanterian annular commutator and contact and realize, brushless electric machine then feeds back to control circuit by Hall element rotor-position, can know the correct time that motor phase commutates.The motor that most of brushless electric machine manufacturer produces all has three Hall effect alignment sensors, because brushless electric machine does not have brush, therefore does not also have relevant interface, and therefore cleaner, noise is less, in fact Maintenance free, and the life-span is longer.
But European Union's high standard requires to use brush motor, because brushless electric machine will produce one section and compose electromagnetic signal by force, the normal operation of medicine equipment can be affected like this, such as cardiac pacemaker, CT nulcear magnetic resonance (NMR), these all need to ask and will use in electromagnetic space environment relatively.Therefore, for the wheelchair user that may enter in these regions, brush motor is set in wheelchair and then seems and be necessary very much.But in brush motor running, when brush and the indirect contact of commutator are from an end bay to the moment of another side, the electric current in commutator is reverse, adds coil and there is self inductance, very easily produce certain spark electromagnetic interference between brush and commutator.
In addition, usually be provided with large turning in wheel chair motor and compare drive mechanism, existing mounting structure is fixed with the housing screw being provided with ratio wheel by the housing being provided with motor, like this, when wheel chair motor runs, this kind of point-like is fixed not only to be existed displacement and slip and produces larger noise, simultaneously, the mutual slip of two housings very easily changes the fit structure between motor and ratio wheel, thus affects the normal work of wheel chair motor.And the braking to wheel chair motor, typically use brake block.When wheelchair is in a larger speed, user needs to use larger strength to act on wheel to rim brake extruding brake block of holding with a firm grip, and like this, not only brake block very easily weares and teares, and during brake, wheelchair also very easily double swerve occurs, and even occurs accident.
Utility model content
The purpose of this utility model overcomes the deficiencies in the prior art, provides the wheel chair motor being provided with electromagnetic brake, adopts integrated electric machine casing, and be built-in with the bracing frame with electric machine casing one, so, large turning than the demand of drive mechanism to housing can be met, play effect of anti-torsion.The setting of carbon brush and filter element, can reduce the probability that brush motor commutator produces electric spark, reduce the loss of brush motor inner part.The setting of electromagnetic brake, can carry out braking fast, stably to machine shaft.
The purpose of this utility model is achieved through the following technical solutions:
Be provided with the wheel chair motor of electromagnetic brake, comprise the electric machine casing of the equal opening in two ends, the inwall of electric machine casing extends internally and is formed with bracing frame, electric machine casing inside division is become first area and second area by bracing frame, also comprise the carbon brush lid for closed first area and the deceleration end cap for closed second area, be provided with the motor stator being connected with machine shaft in first area, machine shaft makes the two ends of machine shaft lay respectively at the both sides of motor stator through motor stator;
Bracing frame is provided with the ratio wheel being positioned at second area, one end of machine shaft is meshed with ratio wheel through bracing frame, and ratio wheel is connected with the power transmission shaft through deceleration end cap; Machine shaft) the other end on be arranged with the rotor being positioned at carbon brush lid, rotor is arranged with commutator, the anchor ring of carbon brush lid has multiple carbon brush hole, the carbon brush acting on commutator is installed in carbon brush hole, stationary magazine creel that is curved and that be communicated with carbon brush hole is provided with between two adjacent carbon brush holes, the filter element be electrically connected with carbon brush is installed in stationary magazine creel, the outer wall of stationary magazine creel is provided with multiple fin along its circumferencial direction;
Also comprise the electromagnetism end cap be connected with carbon brush lid, electromagnetism end cap and carbon brush lid form the 3rd closed region jointly, the anchor ring of electromagnetism end cap is provided with the first arc opening, machine shaft is in being arranged with the termination of that end of rotor through carbon brush lid, and be provided with on this end can braking motor rotating shaft and be positioned at the electromagnetic brake in the 3rd region, electromagnetic brake is rotatably connected to handle, the upper end of handle is positioned at outside the 3rd region through the first arc opening, the least significant end place of handle, at its lower end is provided with A cut-in point, the middle part of handle is provided with the second arc opening, electromagnetic brake is fixed with the reference column through the second arc opening and the B cut-in point that can be communicated with A cut-in point.
In the utility model, for realizing carbon brush lid closing first area, deceleration end cap closing second area, carbon brush lid can be all connected by trip bolt and described electric machine casing mutually with deceleration end cap; Carbon brush lid and electromagnetism end cap also realize being connected between the two by trip bolt.For raising electric machine casing and bracing frame are to the stability of its interior structural support effect, the cavity shape of first area should adapt with motor stator, and the cavity shape of second area should adapt with ratio wheel.Setting like this, can avoid motor stator and ratio wheel vibrations by a relatively large margin occur in electric machine casing and affects the operation of wheel chair motor.Carbon brush hole can be provided with 4, and is uniformly distributed on the anchor ring of described carbon brush end cap.Correspondingly, carbon brush is provided with 4, and filter element also should have 4.Setting like this, on the one hand, can strengthen the absorption of carbon brush to strong spectrum electromagnetic signal, the strong electromagnetic produced when suppressing and eliminate motor rotation and start and stop; On the other hand, also can strengthen the absorption of filter element to spark electromagnetic interference, realize the electric wheelchair in use reduction of failure rate and the prolongation in its useful life.For realizing the filter action of filter element to spark electromagnetic interference, filter element can be EMC filter.EMC filter has another name called Electro Magnetic Compatibility filter, the strong electromagnetic produced when can suppress and eliminate motor rotation and start and stop and electric spark impact, and then realize the electric wheelchair in use reduction of failure rate and the prolongation in its useful life, increase the scope of application of electric wheelchair simultaneously, reduce the limited field of user.
Motor stator and ratio wheel are all positioned at integrated electric machine casing, electric machine casing so can be avoided to deform when motor runs and affect the fit structure of its inside; Wherein, the setting of built-in bracing frame, the setting that can be ratio wheel and machine shaft provides support, and avoids it vibrations by a relatively large margin occur in second area and affects the operation of wheel chair motor.The setting of power transmission shaft is used for sheathed large driving wheel.After energising, motor stator magnetic field and rotor Interaction Law of Electric Current produce electromagnetic torque, the rotor that motor stator rotating magnetic field just has current carrying conductor in tow rotates, thus drive motor rotating shaft rotates, drive large driving wheel to rotate by ratio wheel and power transmission shaft again, thus promotion wheelchair move ahead or retreat.In this running; directly contact with the commutator segment of commutator when starting the carbon brush being positioned at carbon brush hole; now be fixed on the filter element then direct electromagnetic interference elimination that will produce between two adjacent carbon brush holes; and then reduce the number of times of motor field loss protection action chaser; ensure the normal operation of motor; reach and reduce the probability that brush motor commutator produces electric spark, reduce the object of the loss of brush motor inner part.After motor uses for a long time, electric machine casing internal operation assembly can produce a large amount of heats, and the ambient temperature in electric machine casing constantly raises with the accumulation of heat, directly have influence on the job stability of filter element, for temperature, filter element is affected, the utility model has stationary magazine creel in the outer setting of filter element, and on the outer wall of stationary magazine creel, multiple fin is installed, concentrated and the impaired situation of thermal stress around filter element can be reduced occur, finally realize the job stability of brush motor.
When applying electromagnetic brake, machine shaft can be fixed with clamping structure usually, and this clamping structure can match the clutch realized between the two with the internal structure of electromagnetic brake, then reaches the braking of machine shaft by the change of this clutch state and drive object.When electromagnetic brake is energized, electromagnetic brake and clamping structure are separated, and now, machine shaft can rotate with the magnetic fields of motor stator and rotor.And when needs are braked, can directly to electromagnetic brake power down process.For realizing energising or the power-off of electromagnetic brake, also process by turning handle.Particularly, turning handle, when A cut-in point is communicated with B cut-in point, electromagnetic brake is then in "on" position; When A cut-in point and B cut-in point are separated, electromagnetic brake is then in off-position, makes clamping structure be clamped in the internal structure of electromagnetic brake, under this kind of state, the machine shaft be connected mutually with clamping structure also cannot rotate, thus reaches the object to machine shaft braking.Reference column is used for the maximum rotation distance of joystick, in this distance, can ensure that the good connected sum of A cut-in point and B cut-in point departs from completely.
For preventing rain or dust from entering the work affecting electromagnetic brake in the 3rd region, further, the upper end of described handle is arranged with the handle cap that can cover described first arc opening.
For improving stability when A cut-in point is communicated with B cut-in point, further, the middle part of described handle, at its lower end is minimum point, and described A cut-in point is inner concavity, and described B cut-in point is in the outer gibbosity that can adapt with A cut-in point.In the utility model, by increasing A cut-in point, to reach, both are stable is communicated with stable object with the contact area between B cut-in point.
Further, cave in along the direction radially of described carbon brush lid in the middle part of described fin, and the two ends of fin form extension A and extension B respectively, the summit of described extension A is less than the height of summit apart from described stationary magazine creel outer wall of extension B apart from the height of described stationary magazine creel outer wall.In the utility model, the medial recess of fin, and its two ends form extension A and extension B to outer expansion, fin is formed, and bottom is thick, the structure of top thin, the stress reduced when processing and manufacturing is concentrated, between extension A and extension B, there is certain difference in height simultaneously, make the heat around filter element be that level transmission is opened.
For strengthening filter element to the filtration of spark electromagnetism, further, the root of the two ends of filter element described carbon brush adjacent with two is respectively connected.Filter element is electrically connected on the root of carbon brush, is also namely connected to the contact point place of infinite approach carbon brush and commutator.Because the spark electromagnetism of carbon brush and commutator contact position is maximum, filter element is connected to the root of carbon brush, can filters this spark electromagnetism rapidly, so reach quick jamproof object.
Further, the arc length of described fin is 3/4ths of described stationary magazine creel excircle.Heat in electric machine casing is mainly concentrated from coil, and the heat that coil produces can directly be radiated to carbon brush and covers, for optimizing carbon brush lid inner structure layout and reducing the difficulty of processing of each parts in carbon brush lid, the arc length of fin is set to 3/4ths of stationary magazine creel excircle by the utility model, and this section of arc length is just to the commutator segment of commutator, remaining four/a part of stationary magazine creel outer wall then contact internal walls that is direct and carbon brush lid is fixed, and finally realizes filter element quick heat radiating.
Compared with prior art, the utility model has following beneficial effect:
1, in the utility model, motor stator and ratio wheel are all positioned at integrated electric machine casing, electric machine casing so can be avoided to deform when motor runs and affect the fit structure of its inside; Wherein, the setting of built-in bracing frame, the setting that can be ratio wheel and machine shaft provides support, and avoids it vibrations by a relatively large margin occur in second area and affects the operation of wheel chair motor.So, large turning than the demand of drive mechanism to housing can be met, play effect of anti-torsion.
2, when the utility model uses; the carbon brush being positioned at carbon brush hole directly contacts with the commutator segment of commutator; now be fixed on the filter element then direct electromagnetic interference elimination that will produce between two adjacent carbon brush holes; and then reduce the number of times of motor field loss protection action chaser; ensure the normal operation of motor; reach and reduce the probability that brush motor commutator produces electric spark, reduce the object of the loss of brush motor inner part.
3, the setting of electromagnetic brake, reaches the braking of machine shaft by the change of clutch state between electromagnetic brake and machine shaft and drives object.Wherein, reference column is used for the maximum rotation angle of joystick, within the scope of this, can ensure that the good connected sum of A cut-in point and B cut-in point departs from completely.
4, the arc length of fin is set to 3/4ths of stationary magazine creel excircle by the utility model, and this section of arc length is just to the commutator segment of commutator, remaining four/a part of stationary magazine creel outer wall then contact internal walls that is direct and carbon brush lid is fixed, and finally realizes filter element quick heat radiating.
Accompanying drawing explanation
Fig. 1 is the structural representation being provided with a wheel chair motor specific embodiment of electromagnetic brake described in the utility model;
Fig. 2 is the structural representation being provided with an electromagnetism end cap specific embodiment in the wheel chair motor of electromagnetic brake described in the utility model;
Fig. 3 is the structural representation being provided with the first arc opening specific embodiment in the wheel chair motor of electromagnetic brake described in the utility model;
Fig. 4 is the structural representation being provided with electromagnetic brake and a handle specific embodiment in the wheel chair motor of electromagnetic brake described in the utility model;
Fig. 5 is the partial enlarged drawing in the portion of A shown in Fig. 4;
Fig. 6 is the structural representation being provided with a ratio wheel specific embodiment in the wheel chair motor of electromagnetic brake described in the utility model;
Fig. 7 is the structural representation being provided with motor stator and a rotor specific embodiment in the wheel chair motor of electromagnetic brake described in the utility model;
Fig. 8 is the structural representation being provided with an electric machine casing specific embodiment in the wheel chair motor of electromagnetic brake described in the utility model;
Fig. 9 is the cutaway view being provided with an electric machine casing specific embodiment in the wheel chair motor of electromagnetic brake described in the utility model;
Figure 10 is the structural representation being provided with electric machine casing and a carbon brush lid specific embodiment in the wheel chair motor of electromagnetic brake described in the utility model;
Figure 11 is the structural representation being provided with a carbon brush lid specific embodiment in the wheel chair motor of electromagnetic brake described in the utility model;
Figure 12 is the partial structurtes schematic diagram being provided with a stationary magazine creel specific embodiment in the wheel chair motor of electromagnetic brake described in the utility model;
Figure 13 is the partial structurtes schematic diagram being provided with a fin specific embodiment in the wheel chair motor of electromagnetic brake described in the utility model.
Name in accompanying drawing corresponding to Reference numeral is called: 1, electric machine casing, 2, motor stator, 3, rotor, 31, commutator, 4, carbon brush lid, 41, carbon brush hole, 5, carbon brush, 6, stationary magazine creel, 7, filter element, 8, fin, 81, extension A, 82, extension B, 9, machine shaft, 10, deceleration end cap, 11, bracing frame, 12, first area, 13, second area, 14, ratio wheel, 15, power transmission shaft, 16, electromagnetism end cap, 17, handle cap, 18, electromagnetic brake, 19, handle, 20, A cut-in point, 21, first arc opening, 22, second arc opening, 23, reference column, 24, B cut-in point.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment 1
As shown in figure 1 to figure 13, be provided with the wheel chair motor of electromagnetic brake, comprise the electric machine casing 1 of the equal opening in two ends, the inwall of electric machine casing 1 extends internally and is formed with bracing frame 11, electric machine casing 1 inside division is become first area 12 and second area 13 by bracing frame 11, also comprise for the carbon brush lid 4 of closed first area 12 and the deceleration end cap 10 for closed second area 13, be provided with the motor stator 2 being connected with machine shaft 9 in first area 12, machine shaft 9 makes the two ends of machine shaft 9 lay respectively at the both sides of motor stator 2 through motor stator 2;
Bracing frame 11 is provided with the ratio wheel 14 being positioned at second area 13, one end of machine shaft 9 is meshed with ratio wheel 14 through bracing frame 11, and ratio wheel 14 is connected with the power transmission shaft 15 through deceleration end cap; The other end of machine shaft 9 is arranged with the rotor 3 being positioned at carbon brush lid 4, rotor 3 is arranged with commutator 31, the anchor ring of carbon brush lid 4 has multiple carbon brush hole 41, the carbon brush 5 acting on commutator 31 is installed in carbon brush hole 41, stationary magazine creel 6 that is curved and that be communicated with carbon brush hole 41 is provided with between two adjacent carbon brush holes 41, the filter element 7 be electrically connected with carbon brush 5 is installed in stationary magazine creel 6, the outer wall of stationary magazine creel 6 is provided with multiple fin 8 along its circumferencial direction;
Also comprise the electromagnetism end cap 16 be connected with carbon brush lid 4, electromagnetism end cap 16 forms the 3rd closed region jointly with carbon brush lid 4, the anchor ring of electromagnetism end cap 16 is provided with the first arc opening 21, machine shaft 9 is in being arranged with the termination of that end of rotor 3 through carbon brush lid 4, and be provided with on this end can braking motor rotating shaft 9 and be positioned at the electromagnetic brake 18 in the 3rd region, electromagnetic brake 18 is rotatably connected to handle 19, the upper end of handle 19 is positioned at outside the 3rd region through the first arc opening 21, the least significant end place of handle 19 lower end is provided with A cut-in point 20, the middle part of handle 19 is provided with the second arc opening 22, electromagnetic brake 18 is fixed with the reference column 23 through the second arc opening 20 and the B cut-in point 24 that can be communicated with A cut-in point 20.
In the present embodiment, for realizing closing of carbon brush lid 4 pairs of first areas 12, closing of deceleration end cap 10 pairs of second areas 13, preferably, described carbon brush lid 4 and deceleration end cap 10 are all connected mutually by trip bolt and described electric machine casing 1.For raising electric machine casing 1 and bracing frame 11 are to the stability of its interior structural support effect, further, cavity shape and the described motor stator 2 of described first area 12 adapt, and cavity shape and the described ratio wheel 14 of described second area 13 adapt.Setting like this, can avoid motor stator 2 and ratio wheel 14 in electric machine casing 1, vibrations by a relatively large margin occur and affect the operation of wheel chair motor.Described carbon brush hole 41 is provided with 4, and is uniformly distributed on the anchor ring of described carbon brush lid 4.In the present embodiment, correspondingly, carbon brush 5 is provided with 4, and filter element 7 also should have 4.Setting like this, on the one hand, can strengthen the absorption of carbon brush 5 to strong spectrum electromagnetic signal, the strong electromagnetic produced when suppressing and eliminate motor rotation and start and stop; On the other hand, also can strengthen the absorption of filter element 7 pairs of spark electromagnetic interference, realize the electric wheelchair in use reduction of failure rate and the prolongation in its useful life.As preferably, filter element 7 can be EMC filter.EMC filter has another name called Electro Magnetic Compatibility filter, the strong electromagnetic produced when can suppress and eliminate motor rotation and start and stop and electric spark impact, and then realize the electric wheelchair in use reduction of failure rate and the prolongation in its useful life, increase the scope of application of electric wheelchair simultaneously, reduce the limited field of user.
Motor stator 2 and ratio wheel 14 are all positioned at integrated electric machine casing 1, electric machine casing 1 so can be avoided to deform when motor runs and affect the fit structure of its inside; Wherein, the setting of built-in bracing frame 11, the setting that can be ratio wheel 14 and machine shaft 9 provides support, and avoids it in second area 13, vibrations by a relatively large margin occur and affect the operation of wheel chair motor.The setting of power transmission shaft 15 is used for sheathed large driving wheel.In this running; the carbon brush 5 being positioned at carbon brush hole 41 directly contacts with the commutator segment of commutator 31; the electromagnetic interference produced then directly is eliminated by the filter element 7 be now fixed between two adjacent carbon brush holes 41; and then reduce the number of times of motor field loss protection action chaser; ensure the normal operation of motor; reach and reduce the probability that brush motor commutator produces electric spark, reduce the object of the loss of brush motor inner part.After motor uses for a long time, electric machine casing 1 internal operation assembly can produce a large amount of heats, and the ambient temperature in electric machine casing 1 constantly raises with the accumulation of heat, directly have influence on the job stability of filter element 7, for temperature, filter element 7 is affected, the present embodiment has stationary magazine creel 6 in the outer setting of filter element 7, and multiple fin 8 is installed on the outer wall of stationary magazine creel 6, the medial recess of fin 8, and its two ends form extension A81 and extension B82 to outer expansion, fin 8 is made to form bottom thick, the structure of top thin, so, the stress that can reduce when processing and manufacturing is concentrated, between extension A81 and extension B82, there is certain difference in height simultaneously, the heat around filter element 7 is made to be that level transmission is opened, the situation generation that thermal stress around reduction filter element 7 is concentrated and impaired, finally realize the job stability of brush motor.
When applying electromagnetic brake 18; machine shaft 9 can be fixed with clamping structure usually; this clamping structure can match the clutch realized between the two with the internal structure of electromagnetic brake 18, then reaches the braking of machine shaft 9 by the change of this clutch state and drive object.When electromagnetic brake 18 is energized, electromagnetic brake 18 and clamping structure are separated, and now, machine shaft 9 can rotate with the magnetic fields of motor stator 2 and rotor 3.And when needs are braked, can directly to electromagnetic brake 18 power down process.For realizing energising or the power-off of electromagnetic brake 18, also process by turning handle 19.Particularly, turning handle 19, when A cut-in point 20 is communicated with B cut-in point 24, electromagnetic brake 18 is in "on" position; When A cut-in point 20 is separated with B cut-in point 24, electromagnetic brake 18 is in off-position, makes clamping structure be clamped in the internal structure of electromagnetic brake 18, under this kind of state, the machine shaft 9 be connected mutually with clamping structure also cannot rotate, thus reaches the object of braking machine shaft 9.Reference column 23, for the maximum rotation distance of joystick 19, within the scope of this, can ensure that A cut-in point 20 departs from completely with the good connected sum of B cut-in point 24.
For preventing rain or dust from entering the work affecting electromagnetic brake 18 in the 3rd region, preferably, the upper end of described handle 19 is arranged with the handle cap 17 that can cover described first arc opening 21.
For improving stability when A cut-in point 20 is communicated with B cut-in point 24, preferably, the middle part of described handle 19 lower end is minimum point, and described A cut-in point 20 is in inner concavity, and described B cut-in point 24 is in the outer gibbosity that can adapt with A cut-in point 20.In the present embodiment, by increasing A cut-in point 20, to reach, both are stable is communicated with stable object with the contact area between B cut-in point 24.
Preferably, the root of the two ends of filter element 7 described carbon brush 5 adjacent with two is respectively connected.Filter element 7 is electrically connected on the root of carbon brush 5, is also namely connected to the contact point place of infinite approach carbon brush 5 and commutator 31.Because carbon brush 5 is maximum with the spark electromagnetism of commutator 31 contact position, filter element 7 is connected to the root of carbon brush 5, can filters this spark electromagnetism rapidly, so reach quick jamproof object.
Heat in electric machine casing 1 is mainly concentrated from coil, and the heat that coil produces can directly be radiated on carbon brush lid 4, for optimizing carbon brush lid 4 inner structure layout and reducing the difficulty of processing of each parts in carbon brush lid 4, the arc length of fin 8 is set to 3/4ths of stationary magazine creel 6 excircle by the present embodiment, and this section of arc length is just to the commutator segment of commutator 31, remaining four/a part of stationary magazine creel 6 outer wall then contact internal walls that is direct and carbon brush lid 4 is fixed, and finally realizes filter element 7 quick heat radiating.
Above content is the further description done the utility model in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not departing from other execution modes drawn under the technical solution of the utility model, all should be included in protection range of the present utility model.
Claims (6)
1. be provided with the wheel chair motor of electromagnetic brake, it is characterized in that: the electric machine casing (1) comprising the equal opening in two ends, the inwall of electric machine casing (1) extends internally and is formed with bracing frame (11), electric machine casing (1) inside division is become first area (12) and second area (13) by bracing frame (11), also comprise the carbon brush lid (4) for closed first area (12) and the deceleration end cap (10) for closed second area (13), the motor stator (2) being connected with machine shaft (9) is installed in first area (12), machine shaft (9) makes the two ends of machine shaft (9) lay respectively at the both sides of motor stator (2) through motor stator (2),
Bracing frame (11) is provided with the ratio wheel (14) being positioned at second area (13), one end of machine shaft (9) is meshed with ratio wheel (14) through bracing frame (11), and ratio wheel (14) is connected with the power transmission shaft (15) through deceleration end cap, the other end of machine shaft (9) is arranged with the rotor (3) being positioned at carbon brush lid (4), rotor (3) is arranged with commutator (31), the anchor ring of carbon brush lid (4) has multiple carbon brush hole (41), the carbon brush (5) acting on commutator (31) is installed in carbon brush hole (41), stationary magazine creel (6) that is curved and that be communicated with carbon brush hole (41) is provided with between two adjacent carbon brush holes (41), the filter element (7) be electrically connected with carbon brush (5) is installed in stationary magazine creel (6), the outer wall of stationary magazine creel (6) is provided with multiple fin (8) along its circumferencial direction,
Also comprise the electromagnetism end cap (16) be connected with carbon brush lid (4), electromagnetism end cap (16) forms the 3rd closed region jointly with carbon brush lid (4), the anchor ring of electromagnetism end cap (16) is provided with the first arc opening (21), machine shaft (9) is in being arranged with the termination of rotor (3) that end through carbon brush lid (4), and be provided with on this end can braking motor rotating shaft (9) and be positioned at the electromagnetic brake (18) in the 3rd region, electromagnetic brake (18) is rotatably connected to handle (19), the upper end of handle (19) is positioned at outside the 3rd region through the first arc opening (21), the least significant end place of handle (19) lower end is provided with A cut-in point (20), the middle part of handle (19) is provided with the second arc opening (22), electromagnetic brake (18) is fixed with the reference column (23) through the second arc opening (20) and the B cut-in point (24) that can be communicated with A cut-in point (20).
2. the wheel chair motor being provided with electromagnetic brake according to claim 1, is characterized in that: the upper end of described handle (19) is arranged with the handle cap (17) that can cover described first arc opening (21).
3. the wheel chair motor being provided with electromagnetic brake according to claim 1, it is characterized in that: the middle part of described handle (19) lower end is minimum point, described A cut-in point (20) is in inner concavity, and described B cut-in point (24) is in the outer gibbosity that can adapt with A cut-in point (20).
4. the wheel chair motor being provided with electromagnetic brake according to claim 1, it is characterized in that: cave in along the direction radially of described carbon brush lid (4) in described fin (8) middle part, and the two ends of fin (8) form extension A (81) and extension B (82) respectively, the summit of described extension A (81) is less than the height of summit apart from described stationary magazine creel (6) outer wall of extension B (82) apart from the height of described stationary magazine creel (6) outer wall.
5. the wheel chair motor being provided with electromagnetic brake according to claim 1, is characterized in that: the root of the two ends of described filter element (7) described carbon brush (5) adjacent with two is respectively connected.
6. according to the wheel chair motor being provided with electromagnetic brake in Claims 1 to 5 described in any one, it is characterized in that: the arc length of described fin (8) is 3/4ths of described stationary magazine creel (6) excircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443347.3U CN204794552U (en) | 2015-06-25 | 2015-06-25 | Wheelchair motors with electromagnetism brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443347.3U CN204794552U (en) | 2015-06-25 | 2015-06-25 | Wheelchair motors with electromagnetism brake |
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| Publication Number | Publication Date |
|---|---|
| CN204794552U true CN204794552U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520443347.3U Active CN204794552U (en) | 2015-06-25 | 2015-06-25 | Wheelchair motors with electromagnetism brake |
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| Country | Link |
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| CN (1) | CN204794552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107303235A (en) * | 2016-04-19 | 2017-10-31 | 李书贤 | The Modular electrical driving wheel group of walk helper |
-
2015
- 2015-06-25 CN CN201520443347.3U patent/CN204794552U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107303235A (en) * | 2016-04-19 | 2017-10-31 | 李书贤 | The Modular electrical driving wheel group of walk helper |
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