CN206922553U - A kind of rear case component of novel hollow cup carbon brush permanent magnet motor - Google Patents

Abstract

A kind of rear case component of novel hollow cup carbon brush permanent magnet motor, including bonnet, bearing and carbon brush holder, the bearing and carbon brush holder be arranged on it is described after cover, in addition to carbon crystal, the carbon crystal are arranged on the carbon brush holder；The carbon brush holder is the integrated design.The utility model is simple in construction, and part is few, and cost is low, service life length, operates steadily, small volume, efficiency high, has good market prospects.

Description

A kind of rear case component of novel hollow cup carbon brush permanent magnet motor

Technical field

The utility model belongs to machine field, more particularly to a kind of bonnet group of novel hollow cup carbon brush permanent magnet motor Part.

Background technology

Drag cup carbon brush permanent magnet motor because its is compact-sized, without iron loss, efficiency high, various structure type the features such as and by Widely use.With new technology, the development of new material and people carrying to performance indications such as the life-span of motor, vibration, efficiency Height, there is an urgent need to drag cup to have brush permanent magnet motor constantly to be lifted in combination property, is realized on the basis of cost is rational excellent Good motor performance.Especially in unmanned vehicle and robot field, it is necessary to which drag cup carbon brush permanent magnet motor has efficiently The characteristics such as rate, high thrust-weight ratio, long-life.

In addition, existing drag cup have used on brush permanent magnet motor field have brush permanent magnet motor also exist it is following not Foot：(1) being used in the drag cup of unmanned vehicle has brush permanent magnet motor because metallic brush easily rubs, and short life can not meet client It is required that；(2) drag cup has brush permanent magnet motor to usually require that permanent magnet motor high load operation, causes power motor to be in warp The normality of the high current work of perseverance, the metallic brush excessively stream that high current is brought is big, easy heating burnout；(3) drag cup has brush permanent magnetism The metallic brush processing and fabricating cost that motor uses is high, yielding；(4) drag cup has the carbon brush holder of brush permanent magnet motor tradition Not integrated setting, but be welded by brushing piece and terminal two parts, the conducting of brushing piece and terminal can be influenceed because of rosin joint Performance.

Utility model content

The utility model provides a kind of novel hollow cup carbon brush permanent-magnet electric for the above technological deficiency of prior art The rear case component of machine, the motor service life is long, rotating speed is high, operates steadily, small volume, in light weight and efficiency high.

The purpose of this utility model is achieved through the following technical solutions：

A kind of rear case component of novel hollow cup carbon brush permanent magnet motor, including bonnet 9,3rd bearing 403 and carbon brush holder 6, the 3rd bearing 403 and carbon brush holder 6 are arranged on the bonnet 9, in addition to carbon crystal 7, and the carbon crystal 7 is arranged on the carbon On brush holder 6；The carbon brush holder 6 is the integrated design.

Preferably, the carbon brush holder 6 includes terminal 601 and brushing piece 602, and the terminal 601 and brushing piece 602 connect.

Preferably, it is provided with carbon crystal neck 6021 in the brushing piece 602.

Preferably, connecting hole 6011 and positioning hole 6012 are provided with the terminal 601.

Preferably, 3rd bearing room 903 is provided with the center of the bonnet 9, the 3rd bearing 403 is arranged on described In 3rd bearing room 903.

Preferably, covered after described and be additionally provided with terminal hole 901 and locating dowel, the terminal 601 passes through the He of terminal hole 901 The bonnet 9 connects.

Preferably, the positioning hole 6012 is connected with the locating dowel

Preferably, it is additionally provided with casing neck 902 on the bonnet 9.

Compared with prior art, the rear case component of the utility model drag cup carbon brush permanent magnet motor at least has following excellent Point：

1) rear case component of the utility model drag cup carbon brush permanent magnet motor does not use traditional welding procedure, but adopts Shell fragment is bent with integral type, brushing piece and the conduction of terminal is improved, avoids the conducting that brushing piece and terminal are influenceed because of rosin joint Performance.The rear cover component structure part is few, and assembling is simple, and adapts to the environment to run at high speed, and no iron loss produces, and improves motor Efficiency.In addition, replacing metallic brush using carbon crystal, brush motor service life is extended.Using hot melting process can organize it is vertical and Stability Analysis of Structures, automated production can be carried out, improves production capacity.

2) the utility model is simple in construction, and part is few, and cost is low, service life length, operates steadily, small volume, efficiency high； Diameter can be accomplished below Φ 13mm, filled up the blank of miniaturization drag cup carbon brush machine, had good market prospects.

Brief description of the drawings

Fig. 1 is the overall structure exploded perspective view of the utility model drag cup carbon brush permanent magnet motor；

Fig. 2 is the casing cross-sectional view of the utility model drag cup carbon brush permanent magnet motor；

Fig. 3 is the rotor assembly exploded perspective view of the utility model drag cup carbon brush permanent magnet motor；

Fig. 4 is the rear case component exploded perspective view of the utility model drag cup carbon brush permanent magnet motor；

Fig. 5 is the carbon brush holder structure schematic diagram of the utility model drag cup carbon brush permanent magnet motor；

Fig. 6 is the overall structure diagrammatic cross-section of the utility model drag cup carbon brush permanent magnet motor.

Embodiment

The utility model is described in further detail with reference to the accompanying drawings and examples, following examples be it is descriptive, It is not limited, it is impossible to which the scope of protection of the utility model is limited with this.

Fig. 1 is the overall structure exploded perspective view of the utility model drag cup carbon brush permanent magnet motor.

As shown in figure 1, the utility model drag cup carbon brush permanent magnet motor, including casing 1, coiling armature winding 2, magnetic Steel 3, clutch shaft bearing 401, second bearing 402,3rd bearing 403, pad 5, carbon brush holder 6, carbon crystal 7, commutator 8 and bonnet 9. Wherein：

Clutch shaft bearing 401, second bearing 402, magnet steel 3 and casing 1 form stator module.The axle of clutch shaft bearing 401 and second Hold 402 to be arranged in axle sleeve 101 and (please also refer to Fig. 2), form bearing assembly.This dual bearing structure can ensure stator The concentricity of component, consolidate the intensity of bearing arrangement and under the premise of offer is high-revolving, reduce noise and vibration, while energy Enough ensure the stability of the double force-output shafts of rotor.Magnet steel 3 is arranged in casing 1.

Commutator 8 and winding 2 form rotor assembly.Winding 2 is arranged between magnet steel 3 and casing 1, for providing magnetic field； Commutator 8 passes through winding 2 and pad 5, and pad 5 is used for carrying out gap adjustment, controlling rotary part to motor pivotable parts Axial float.It is bonded between commutator 8 and winding 2 by glue, rotating force and pull-out force during high rotation speed operation can be met, Make connection more stable.

3rd bearing 403, bonnet 9, carbon brush holder 6 and carbon crystal 7 form rear case component, and 3rd bearing 403 is arranged on bonnet 9 Interior, carbon brush holder 6 is connected with bonnet 9, and carbon crystal 7 is arranged on carbon brush holder 6, and carbon crystal 7 is used for and commutator 8 connects.

Fig. 2 is the casing cross-sectional view of the utility model drag cup carbon brush permanent magnet motor.

As shown in Fig. 2 include axle sleeve 101 in casing 1；Axle sleeve 101 and the integrated design of casing 1, casing 1 can pass through essence Close numerical control (Computer Numerical Control, CNC) lathe process, integral molded plastic takes rotary extrusion type spinning to enter again after processing The mode of row finishing is process, and has preferable concentricity and precision.Axle sleeve 101 is used for connecting magnet steel 3.The axle sleeve of traditional type 101 and casing 1 connected mode compared with the axle sleeve 101 of integrated design and the connected mode of casing 1, the axle sleeve of traditional type 101 are reinforced with the junction of casing 1 with glue reinforcing or laser spot welder spot welding, good without the stability of integrated design, from And meet rotating force and pull-out force caused by motor operating；The both ends of axle sleeve 101 in casing 1 are respectively arranged with clutch shaft bearing room 1011 and second bearing room 1012, the clutch shaft bearing room 1011 and second bearing room 1012 are respectively intended to place clutch shaft bearing 401 and second bearing 402, dual bearing structure can ensure the stability of the double output rotating shafts of rotor.Casing 1 ensures with axle sleeve 101 Stator pack concentricity, stable operating is provided for rotor assembly, has ensured the running accuracy of rotor assembly.Casing is set on end face Heat emission hole (not shown) is equipped with, heat emission hole is used for distributing heat caused by motor internal, so as to avoid motor internal from overheating.

Fig. 3 is the rotor assembly exploded perspective view of the utility model drag cup carbon brush permanent magnet motor.

As shown in figure 3, commutator 8 and coiling armature winding 2 form rotor assembly.Commutator 8 include commutator segment 802, Skeleton 803 and rotating shaft 801.Rotating shaft 801 is provided with annular knurl 8011 with the junction of skeleton 803, and annular knurl 8011 is used for increasing rotating shaft 801 With the rotating force and pull-out force of skeleton 803, make contact more firm, it is difficult for drop-off.Commutator segment pipe is provided with skeleton 803 8033rd, commutator bar slot 8031, groove 8032 and shaft hole 8034.Commutator segment 802 is by being enclosed on commutator segment pipe 8033 and skeleton 803 connections, commutator segment 802 finally mutually block with commutator bar slot 8031, then injection moulding integrated molding.With increase skeleton 803 with Rotating force and pull-out force between commutator segment 802, make connection more firm.Rotating shaft 801 connects through shaft hole and skeleton 803 Connect, the annular knurl 8011 that rotating shaft 801 and the junction of skeleton 803 are set adds frictional force between rotating shaft 801 and skeleton 803, returned Spin and pull-out force.The junction of skeleton 803 and winding 2 is additionally provided with groove 8032, and groove 8032 is easy to glue to immerse, increase Rotating force and pull-out force between skeleton 803 and winding 2.Commutator segment 802, skeleton 803 and rotating shaft 801 connect as one, and improve Production efficiency.

Fig. 4 is the rear case component exploded perspective view of the utility model drag cup carbon brush permanent magnet motor.

As shown in figure 4,3rd bearing 403, bonnet 9, carbon brush holder 6 and carbon crystal 7 form rear case component.It is provided with bonnet 9 3rd bearing room 903, terminal hole 901, casing neck 902 and locating dowel (not shown)；Carbon brush holder 6 is bent using integral type Shell fragment.Carbon brush holder 6 includes terminal 601.Carbon brush holder 6 is connected to bonnet 9 by terminal 601 through terminal hole 901.Carbon crystal 7 is set On carbon brush holder 6,3rd bearing 403 is arranged in the 3rd bearing room 903 of bonnet 9.

Fig. 5 is the carbon brush holder structure schematic diagram of the utility model drag cup carbon brush permanent magnet motor.

As shown in figure 5, carbon brush holder 6 includes brushing piece 602 and the two parts of terminal 601, traditional welding procedure is not used, is improved The conduction of carbon brush and terminal, avoids the electrical connection properties that carbon brush and terminal are influenceed because of rosin joint.It is provided with brushing piece 602 Carbon crystal neck 6021, carbon crystal 7 are connected by carbon crystal neck 6021 and carbon brush holder 6；The He of connecting hole 6011 is provided with terminal 601 Positioning hole 6012, connecting hole 6011 are used for connecting external power source, and fixing hole 6012 is used for fixing carbon brush holder 6 and bonnet 9, fixed column (not shown) is connected to terminal 601 through fixing hole 6012, then heats fixed column, melt it is flat after i.e. carbon brush holder 6 and after Lid 9 is fixed.

Fig. 6 is the overall structure diagrammatic cross-section of the utility model drag cup carbon brush permanent magnet motor；(please as shown in Fig. 6 With reference to other figures), the present invention includes casing 1, winding 2, magnet steel 3, clutch shaft bearing 401, second bearing 402,3rd bearing 403rd, pad 5, carbon brush holder 6, carbon crystal 7, commutator 8, axle sleeve 101 and bonnet 9.Wherein：

Casing 1 and the integrated design of axle sleeve 101, are effectively ensured stator pack concentricity and stable operating, the machine of traditional type After 101 groups of shell 1 and axle sleeve is vertical, point of use UV glue or reinforced using laser spot welding, it is impossible to stator pack concentricity and steady is effectively ensured Fixed operating.Clutch shaft bearing 401, second bearing 402 are arranged in the bearing chamber at the both ends of axle sleeve 101, and 3rd bearing 403 is arranged on In the bearing chamber of bonnet 9, pad 5 is arranged between second bearing 402 and the skeleton 803 of commutator 8, and pad 5 is to rotatable portion Divide and carry out gap adjustment, for controlling the axial float of rotating part.Magnet steel 3 is enclosed on axle sleeve 101, is then connected by glue Connect, prevent circumference from skidding, make stationary positioned more firm.After commutator 8 is fixedly connected with winding 2, winding 2 is arranged on magnet steel 3 Between casing 1, rotating shaft 801 is connected to casing 1 by pad 5, second bearing 402, axle sleeve 101 and clutch shaft bearing 401.Carbon crystal 7 are connected to bonnet 9 by terminal 601 by the carbon brush holder 6 of carbon crystal neck 6021 through the terminal hole 901 on bonnet 9, and locating dowel is worn Cross positioning hole 6012 carbon brush holder 6 is fixed on bonnet 9.Carbon crystal 7 and commutator segment 8033 are connected, and bonnet 9 is buckled on casing 1, machine Shell 1 is connected with bonnet 9, blocks casing 1 and bonnet 9 at casing neck 902.

The manufacture method of the utility model drag cup carbon brush permanent magnet motor, include the procedure of processing of carbon brush permanent magnet motor With the number of assembling steps of carbon brush permanent magnet motor, it is specially：

The procedure of processing of the carbon brush permanent magnet motor, including：

A：By board respectively by commutator 8, carbon brush holder 6, the global formation of casing 1；

B：Bearing assembly is arranged on to the corresponding position of casing 1 and bonnet 9, commutator is connected winding, carbon brush holder connects Bonnet is connect, then winding is arranged in casing, then bonnet is arranged on casing.

Here, the bearing assembly, including the second bearing of axle sleeve and the clutch shaft bearing sum being arranged in axle sleeve.

C：And then by accurate digital control CNC lathe process casing or by rotary extrusion type spinning processing finish again.

The number of assembling steps of the carbon brush permanent magnet motor, including：

D：Bearing riveting is entered in bearing chamber, on axle sleeve, stator module assembling finishes magnetic steel sleeve；

Here, the stator module includes clutch shaft bearing, second bearing, magnet steel and casing.

E：Commutator segment, skeleton and rotating shaft are sequentially connected composition commutator, commutator is connected on winding, by glue plus Gu；

F：Carbon crystal is set and carbon brush holder, carbon brush holder cover after being connected to, carbon brush holder connects with commutator, bonnet and casing Connection.

More than, the only preferable embodiment of the utility model, but the protection domain of utility model is not limited to This, any one skilled in the art is in the technical scope that the utility model discloses, the change that can readily occur in Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with right The protection domain of claim is defined.

Claims (8)

1. a kind of rear case component of novel hollow cup carbon brush permanent magnet motor, including bonnet (9), 3rd bearing (403) and carbon brush Frame (6), the 3rd bearing (403) and carbon brush holder (6) are arranged on the bonnet (9), it is characterised in that also including carbon crystal (7), the carbon crystal (7) is arranged on the carbon brush holder (6), and the carbon brush holder (6) is the integrated design.

2. the rear case component of novel hollow cup carbon brush permanent magnet motor according to claim 1, it is characterised in that the carbon Brush holder (6) includes terminal (601) and brushing piece (602), the terminal (601) and brushing piece (602) connection.

3. the rear case component of novel hollow cup carbon brush permanent magnet motor according to claim 2, it is characterised in that the brush Carbon crystal neck (6021) is provided with piece (602).

4. the rear case component of novel hollow cup carbon brush permanent magnet motor according to claim 2, it is characterised in that the end Connecting hole (6011) and positioning hole (6012) are provided with sub (601).

5. the rear case component of novel hollow cup carbon brush permanent magnet motor according to claim 1, it is characterised in that after described Cover at the center of (9) and be provided with 3rd bearing room (903), the 3rd bearing (403) is arranged on the 3rd bearing room (903) It is interior.

6. the rear case component of novel hollow cup carbon brush permanent magnet motor according to claim 4, it is characterised in that after described Terminal hole (901) and locating dowel are additionally provided with lid (9), the terminal is connected by terminal hole (901) and the bonnet (9).

7. the rear case component of novel hollow cup carbon brush permanent magnet motor according to claim 6, it is characterised in that described fixed Position hole (6012) is connected with the locating dowel.

8. the rear case component of novel hollow cup carbon brush permanent magnet motor according to claim 1, it is characterised in that after described Casing neck (902) is additionally provided with lid (9).