CN202334139U

CN202334139U - Motor with planetary gear speed reducing device

Info

Publication number: CN202334139U
Application number: CN2011204843287U
Authority: CN
Inventors: 张礼
Original assignee: GUANGDONG JIAHE MICROMOTOR CO Ltd
Current assignee: GUANGDONG JIAHE MICROMOTOR CO Ltd
Priority date: 2011-11-28
Filing date: 2011-11-28
Publication date: 2012-07-11
Anticipated expiration: 2021-11-28

Abstract

The utility model discloses a motor with a planetary gear speed reducing device. The motor comprises a motor body and a planetary speed reducing device, wherein the motor body realizes output transmission through the planetary gear speed reducing device; the original gradual transfer of gear variable speed transmission from one gear to another gear is changed into matching transmission from one sun gear to more than three corresponding planetary gears; and thus, the low-power motor which has the advantages of high accuracy, high transmission efficiency, high torque, low transmission noise, maintenance freeness of the gear, no spattering of lubricating oil and the like and has a safer and more reliable structure and performance and higher power and torque is provided.

Description

A kind of motor with epicyclic reduction gear unit

Technical field

The utility model relates to a kind of family kitchen and uses small power motor, particularly a kind of motor with epicyclic reduction gear unit.

Background technology

Existing family kitchen is with the motor of grinder, bean milling machine, masticator, and the slowing-down structure of output gear is that other progressively transmitting of 1 gear of 1 gear mesh realizes that its transmission contact-making surface has only 1 tooth.During transmission; Because of the flank of tooth receives mutual extrusion power than producing certain relief between the gear wheel, transmission is unreliable and efficient is lower (about 80-88%), because of gear does not have safeguard procedures; So it is bigger to rotate noise; Often cause lubricant grease to sputter, so that influence food sanitation safe, power generally can only be accomplished 300W.Therefore need a kind of transmission efficiency higher, have more the motor of fail safe.

Summary of the invention

The purpose of the utility model is to above-mentioned deficiency; A kind of new structure be provided, reached high accuracy, high transmission efficiency, high moment of torsion, underneath drive noise and the non-maintaining and unlubricated oil of gear sputters etc.; Its structure, performance are safer more reliable, the motor that power and torque are bigger.

The utility model can be realized through following mode:

Band planetary gear small power motor partly is made up of motor body and epicyclic reduction gear unit, and motor body is realized transmission output through epicyclic reduction gear unit.

Epicyclic reduction gear unit partly comprises planetary gear, is installed in the sun gear (also being driven wheel) on the output axle core, the external toothing that has safeguard function and gear box base are formed.Epicyclic reduction gear unit is screwed on the motor fore-stock; With the sun gear tight fit on the motor shaft; Planetary gear is installed on the planetary gear fixed mount that has the metal fixed leg; Put into the external toothing that has safeguard function then, planetary gear fixed mount and output disjunctor change and then drive planetary gear fixed mount rotation realization output transmission in the external toothing inward turning thereby sun gear drives planetary gear.

Preferred, the number of planetary gear is more than three.

Motor body partly comprises stator module, rotor assembly and forward and backward bracket component and brush, and stator module and rotor assembly are connected in series circuit through brush.During installation; Rotor assembly is put into the hole of stator module, at the commutator end of rotor assembly the after-poppet assembly is installed, and stator module is to be made up of stator coil, stator core and power supply lead wire; Stator coil embeds in the stator core, picks out power supply lead wire on the stator coil; Rotor assembly is to be made up of rotor winding, rotor core, axle core, lining, rotor slot insulation, groove contract and commutator; Rotor slot insulation inserts in the groove on the rotor core; Repeatedly in rotor core, the axle core is fastened in the rotor core hole rotor winding, and axle core two ends are equipped with lining; Axle core one termination has commutator, and the groove contract is attached on the rotor slot insulation; The after-poppet assembly is to be made up of after-poppet, brush box, bearing and bearing folder, and brush box is installed in the both sides of after-poppet, and bearing and bearing folder are fastened on the after-poppet; The fore-stock assembly is equipped with bearing and bearing folder equally, is installed in the output of motor body in the other direction with after-poppet.

During transmission, under sun gear (driven wheel on the motor shaft core) drove, planetary gear was made circular motion along the external toothing track when sun gear rotates; (or more multiaspect) contact stressedly because sun gear and 3 of planetary gears, and the suffered mutual extrusion power of the flank of tooth has been reduced to original more than 1/3, and the moment of torsion increase is original more than 3 times; Planetary gear is because the hole has metal column to fix and has the external toothing of safeguard function to support, and gear load transmission can not produce bigger cooperation relief, and output and planetary gear fixed mount are designed to disjunctor; The transmission accuracy of total and efficient high (about 97-98%); The rotation noise is little, because of there are safeguard procedures the gear outer ring, so unlubricated grease sputters phenomenon; Guaranteed food sanitation safe; Therefore power also can be brought up to more than the 500W, and mounting structure is simple, increases useful life more than 2 times and the advantage of gear maintenance-free.

The utility model has been done bigger improvement owing to adopted said structure than prior art:

1, creatively epicyclic reduction gear unit is applied to family kitchen with on the small power motor;

2, the deceleration of gear is to cooperate transmission by corresponding 3 (or more than the 3) planetary gears of 1 sun gear, and its transmission contact-making surface is by 1 original tooth that increases to 3 (or more than 3);

3, output and planetary gear fixed mount are designed to disjunctor, to reduce the loss of transmission;

4, in the design of planetary gear external toothing the sealing protection measure is arranged; 5, sun gear, planetary gear, external toothing and gear box base are relatively independent part, are designed with the concavo-convex anchor point of accurate installation on each part, the convenient batch process in batches.

Description of drawings

Fig. 1 is the structural representation of a kind of specific embodiment of the utility model;

Fig. 2 is the motor portion key diagram among Fig. 1;

Fig. 3 is the bright figure of epicyclic reduction gear unit structural representation in the utility model;

Fig. 4 is Fig. 3 device internal rows star wheel structure key diagram;

Fig. 5 is the external toothing key diagram that Fig. 3 device inside has safeguard function;

Fig. 6 is that Fig. 3 device internal rows star-wheel cooperates transmission operating structure key diagram with external toothing;

Fig. 7 is that Fig. 3 device inner sun wheel, planetary gear and external toothing cooperate transmission operating structure key diagram;

Fig. 8 is that gear box base figure master looks and upward view;

Among the figure: axle core 1; After-poppet 2; Bearing folder 3; Bearing 4; Brush box 5; Stator coil 6; Stator slot insulation 7; Stator core 8; The fore-stock 9 of band mounting ear; Hold-down screw 10; Gear box base 11; The external toothing 12 that has safeguard function; Output connector 13; Hold-down screw 14; Rotor winding 15; Rotor bushing 16; Rotor slot wedge 17; Power supply lead wire 18; Commutator 19; Brush 20; Sun gear (driven wheel) 21; Planetary gear 22; Fixed leg 23; (with the planetary gear of output disjunctor) fixed mount 24.

Embodiment

Below in conjunction with accompanying drawing, the utility model is done further to describe, but it is not represented as unique execution mode of the utility model.

To shown in Figure 8, the utility model band planetary gear small power motor is made up of motor body and epicyclic reduction gear unit 2 major parts like Fig. 1.

Motor body comprises stator module, rotor assembly and forward and backward bracket component, and rotor assembly is put into the hole of stator module, at the commutator end of rotor assembly the after-poppet assembly is installed, and stator module and rotor assembly are connected in series circuit through brush.Stator module is to be made up of stator coil 6, stator slot insulation 7, stator core 8 and power supply lead wire 18.Stator coil 6 embeds in the stator core 8, and contact-making surface separates with stator slot insulation 7, picks out power supply lead wire 18 on the stator coil 6; Rotor assembly is to be made up of rotor winding 15, rotor core, axle core 1, rotor bushing 16, rotor slot insulation, rotor contract 17, commutator 19.Axle core 1 is pressed into the rotor core hole; Respectively place a rotor bushing 16 at axle core two ends; Rotor slot insulation inserts in the groove of rotor core; Repeatedly in rotor core, axle core after-poppet end is pressed into and the interconnective commutator 19 of rotor winding the rotor winding, and rotor contract 17 is attached on the rotor slot insulation; The after-poppet assembly is to be made up of after-poppet 2, bearing 4, bearing folder 3 and brush box 5.Bearing folder 3 is close to and is fastened on then above the bearing 4 on the after-poppet 2, and brush box 5 is installed in after-poppet 2 and the corresponding both sides of commutator; Have mounting ear fore-stock 9 usefulness screws 10 and be fixed on the stator core 8, the axle of axle core 1 goes out end sun gear (driven wheel) 21 is installed, and sun gear 21 realizes that through driving planetary reducer output connects.

Epicyclic reduction gear unit comprises planetary gear 22, sun gear 21; The external toothing 12 that has safeguard function is formed with gear box base 11; Sun gear 21 is installed on the engine body output axle core 1; Planetary gear 22 is installed on the planetary gear fixed mount 24 that has metal fixed leg 23; Put into the external toothing 12 that has safeguard function then, planetary gear fixed mount 24 and output disjunctor are realized the output transmission thereby sun gear 21 drives planetary gear 22 in commentaries on classics of external toothing inward turning and then 24 rotations of drive planet carrier wheel fixed mount., planetary gear and external toothing add lubricant grease, are fastened on the gear box base 11 with screw 14.

It will be recognized by those skilled in the art; Under the prerequisite of the protection range that does not depart from the utility model; Can carry out various modifications, variation and combination to above-mentioned execution mode, and think that this modification, variation and combination are within the scope of originality thought.

Claims

1. motor with epicyclic reduction gear unit; Comprise motor body and epicyclic reduction gear unit; Motor body is realized the output transmission through epicyclic reduction gear unit; It is characterized in that described epicyclic reduction gear unit comprises planetary gear (22), sun gear (21), have the external toothing (12) and the gear box base (11) of safeguard function, sun gear (21) is installed on the engine body output axle core (1); Planetary gear (22) is installed on the planetary gear fixed mount (24) that has metal fixed leg (23); Put into external toothing (12) lining that has safeguard function then, planetary gear fixed mount (24) and output disjunctor, sun gear (21) drive planetary gear (22) the external toothing inward turning change so that drive planetary gear fixed mount (24) thus rotation realizes the output transmission.

2. the motor of band epicyclic reduction gear unit as claimed in claim 1, the number that it is characterized in that said planetary gear (22) is more than three.

3. the motor of band epicyclic reduction gear unit as claimed in claim 1; It is characterized in that motor body comprises stator module, rotor assembly and forward and backward bracket component; Rotor assembly is put into the hole of stator module; Commutator end at rotor assembly is equipped with the after-poppet assembly, and stator module and rotor assembly are connected in series circuit through brush, and fore-stock (9) is fixed on the stator module.

4. the motor of band epicyclic reduction gear unit as claimed in claim 3 is characterized in that epicyclic reduction gear unit is screwed on motor fore-stock (9).

5. the motor of band epicyclic reduction gear unit as claimed in claim 3; It is characterized in that stator module is to be made up of stator coil (6), stator slot insulation (7), stator core (8) and power supply lead wire (18); Stator coil (6) embeds in the stator core (8); Contact-making surface separates with stator slot insulation (7), picks out power supply lead wire (18) on the stator coil (6); Rotor assembly is to be made up of rotor winding (15), rotor core, axle core (1), rotor bushing (16), rotor slot insulation, rotor contract (17), commutator (19); Axle core (1) is pressed into the rotor core hole; Respectively place a rotor bushing (16) at axle core two ends, rotor slot insulation inserts in the groove of rotor core, and the rotor winding is repeatedly in rotor core; Axle core after-poppet end is pressed into and the interconnective commutator of rotor winding (19), and rotor contract (17) is attached on the rotor slot insulation; The after-poppet assembly is to be made up of after-poppet (2), bearing (4), bearing folder (3) and brush box (5), and bearing folder (3) is close to and is fastened on then above the bearing (4) on the after-poppet (2), and brush box (5) is installed in after-poppet (2) and the corresponding both sides of commutator; The fore-stock (9) that has mounting ear is fixed on the stator core (8) with screw (10), and the axle of axle core (1) goes out end sun gear (21) is installed.