CN201238227Y

CN201238227Y - Miniature water-proof speed reducing motor

Info

Publication number: CN201238227Y
Application number: CNU2008201324474U
Authority: CN
Inventors: 黄小平
Original assignee: MAFUKBU PRECISION MOTOR HOLDING CO Ltd
Current assignee: MAFUKBU PRECISION MOTOR HOLDING CO Ltd
Priority date: 2008-08-14
Filing date: 2008-08-14
Publication date: 2009-05-13
Anticipated expiration: 2018-08-14

Abstract

The utility model relates to a micro waterproof reducing motor, comprising a micro-gear transmission box 1, a micro-motor 2, a housing 3, a housing rear cover 4 and an output shaft 5; wherein, the micro-gear transmission box 1 and the micro-motor 2 are positioned in the housing 3, and the micro motor shaft 22 passes through the copper based bearing bush 21 to be inserted into the transmission box 1 and engaged with the transmission gear. the micro waterproof reducing motor is characterized in that the central part of the roof cover of the micro-gear transmission box is provided with the copper based bearing bush 21 to ensure the concentricity of output shaft; the output shaft 5 is coated with a waterproof sealing ring 6 the front end of which is provided with a waterproof copper based bearing 7, and the waterproof copper based bearing 7 is positioned inside the axle hole 8, and the front end of the output shaft 5 passes through the axle hole 8 and exposes to the outside; the housing rear cover 4 is buckled with the housing 3, at the connection position of which, a waterproof sealing ring is installed. The micro type waterproof reducing motor has excellent waterproof performance.

Description

Miniature waterproof reducing motor

Technical field

The utility model relates to a kind of micromachine, is meant miniature waterproof reducing motor especially.

Background technology

At present, still do not have the miniature waterproof reducing motor of this part kind both at home and abroad and come out, existing miniature waterproof machine is to add a water proof rubber cover at motor housing mostly, in order to reach the motor waterproof effect.And miniature waterproof machine rotating speed, it is very common conventional rotating speed motor, the scope of general rotating speed, go between 25000 commentaries on classics at per minute 7000, that is to say, its making of this type of motor, maximum the most basic defect and shortcoming, mainly show five aspects: the one, rotating speed of motor can't be low again. the per minute rotating speed in a single day low 7000 change, motor does not just have strength to go to drive the product operate as normal at all, therefore, and " 7000 change ", be exactly " limiting value " of the design of this class electric machine theory, or cry minimum " critical point "; The 2nd,, motor torque is little; The 3rd, the poor selectivity of motor torque; The 4th,, motor shaft easily gets rusty; The 5th,, motor seal is not tight, easily infiltration, easily short circuit, the life-span is short.

The utility model content

The purpose of this utility model provides a kind of miniature waterproof reducing motor, comprise electrical micro-machine, miniature gears gearbox, casing, rear chassis and output shaft, wherein, miniature gears gearbox and electrical micro-machine are placed in the casing, the electrical micro-machine axle sleeve inserts in the speed-changing gear box and meshes with change-speed gearing, it is characterized in that: miniature gears box cover central part is equipped with location copper base bearing lining, guarantees that output shaft is concentric; Be with waterproof grommet on output shaft, its front end is provided with waterproof copper base bearing, and waterproof copper base bearing is laid the axis hole inboard of casing, and the output shaft front end passes axis hole and exposes; At the rear chassis tail end, positive and negative electrode and electrode outlet line place, the waterproof resin of having annotated, effect one is to prevent that the joining place of casing tail end and rear chassis from infiltrating seawater, the 2nd, prevent that seawater from infiltrating bonnet and causing the positive and negative electrode short circuit; Rear chassis and casing fastening, the joint is equipped with waterproof grommet.For preventing seawater corrosion, after installing spaghetti additional on the electrode outlet line, be connected with waterproof electrode wires plug again.

Advantage: this miniature waterproof reducing motor is owing to be with waterproof grommet on output shaft, and is provided with waterproof copper base bearing at its front end.Waterproof copper base bearing is shouldered " the first road waterproof is closed ", and waterproof grommet is miniature waterproof reducing motor " the second road waterproof is closed ", and this product waterproof effect is splendid.

Description of drawings:

Fig. 1 is miniature waterproof reducing motor structure (section) schematic diagram.

Fig. 2 is that schematic diagram is looked on a miniature waterproof reducing motor left side.

Fig. 3 is an electrical micro-machine profile front elevational schematic.

Fig. 4 is electrical micro-machine section (structure) schematic diagram.

Reference numeral: 1 miniature gears gearbox; 2 electrical micro-machines; 3 casings; 4 rear chassis; 5 output shafts; 6 waterproof grommets; 7 waterproof copper base bearings; 8 axis holes; 9; just; negative electrode; 10 electrode outlet lines; 11 waterproof resins; 12 spaghettis; 13 waterproof electrode wires plugs; 14 water-proof lock catch; 15 annular guard rings; 16 set screws; 17 location copper base bearing linings; 20 electrical micro-machine casings; 21 location copper base bearing linings; 22 micro-motors; 25 spindles; 26 rotors; 27 commutators; 28 insulating trips; 29 electrical micro-machine rear chassis.

Embodiment:

As Fig. 1～shown in Figure 4, the utility model is a kind of miniature waterproof reducing motor, comprise miniature gears gearbox 1 and electrical micro-machine 2, wherein, miniature gears gearbox 1 and electrical micro-machine 2 are placed in the casing 3, micro-motor 22 inserts in the miniature gears gearbox 1 and meshes with change-speed gearing, it is characterized in that: miniature gears gearbox loam cake central part is equipped with location copper base bearing lining 17; On output shaft 5, be with waterproof grommet 6, output shaft 5 front ends are provided with waterproof copper base bearing 7, waterproof copper base bearing 7 is laid axis hole 8 inboards of casing 3, output shaft 5 front ends pass axis hole 8 and expose, waterproof grommet 6 and waterproof copper base bearing 7 tightly stop seawater to infiltrate the motor from " circumferential edges " of output shaft 5 efficiently, cause " short circuit ", damage motor.

During enforcement, at electrical micro-machine rear chassis 29 tail ends, positive and negative electrode 9 and electrode outlet line 10 places, the waterproof resin 11 of having annotated; Rear chassis 4 and casing 3 snappings, the joint is equipped with waterproof grommet.For preventing seawater corrosion, after being added with spaghetti 12 on the electrode outlet line 10, be connected with waterproof electrode wires plug 13 again.During use, waterproof electrode wires plug 13 is connected with water-proof lock catch 14.

During enforcement, casing adopts copper, and the surface has been done special anti-corrosion and handled, and promptly on the surface of copper casing, electroplates one deck anti-corrosion alloy protecting enamelled coating.Motor housing and miniature gears gear-box case are copper material.When reality connects, because location copper base bearing lining 21 is housed, can guarantee that really electrical micro-machine output shaft " location " is accurate, good concentricity, rotating speed-causing property is good,, the torque high conformity, and noise is low.

During enforcement, the miniature gears gearbox has: the product of different speed reducing ratio such as 1:3,1:5,1:10,1:15,1:20,1:50,1:52,1:63,1:75,1:100,1:150,1:210,1:250,1:298,1:340 is selected for use for vast client.The miniature gears gearbox, stock size: 12 x, 10 x 9MM.Different speed reducing ratio can match different rotating speeds, different torques.Micro-motor, output shaft all adopt the stainless steel shaft of external import " acid-proof, antirust, anti-oxidation, wear-resisting ".

During enforcement,, cause positive and negative electrode 9 and electrode outlet line 10 " get loose, break " to occur, on electrode outlet line 10, twine two annular guard rings 15 especially, and then inject resin-encapsulated in order to prevent pulling because of external force.

Referring to Fig. 3, Fig. 4, electrical micro-machine adopts existing product.Electrical micro-machine is made up of electrical micro-machine casing 20, location copper base bearing lining 21, micro-motor 22, positive and negative electrode 9, stator 25, rotor 26, commutator 27, insulating trip 28 and electrical micro-machine rear chassis 29.Wherein, assembly has " oiliness bearing " in the copper base bearing lining 21 of location, plays the effect of fixing " output shaft " position.In addition, in when assembling, in order to connecting two screws 16 of casing and rear chassis, employing be miniature brass screws, first lock screw, and then with scolding tin with the thorough firm sealing of cap nut.Guarantee two " brass screws positions ", in seawater, seawater can not infiltrate the motor from " brass screws " " circumferential edges ", causes that " short circuit " damages motor.

In a word, the gear ratio of this miniature waterproof reducing motor, can make according to user's different demands, can satisfy different requirement of client, size is little, electric current is little, speed is different as far as possible, torque is big as far as possible, the life-span can be grown to the greatest extent, material is the least possible, weight is light as far as possible, price is low as far as possible, efficient is high as far as possible.

The purposes of miniature waterproof reducing motor is very extensive, is widely used in the lavatory towards tool, open-air monitor, the spring of disputing, fish jar, daysailer, amphibious panzer, submarine, the submarine exploration car on land sport car or the like product, can be seen its tender strong figure everywhere, at any time remove difficulties and alleviate sufferings for your life, allow you be unable to do without it forever.

Claims

1, a kind of miniature waterproof reducing motor, comprise miniature gears gearbox (1), electrical micro-machine (2), casing (3), rear chassis (4) and output shaft (5), wherein, miniature gears gearbox (1) and electrical micro-machine (2) are placed in the casing (3), micro-motor (22) inserts in the miniature gears gearbox (1) and meshes with change-speed gearing, it is characterized in that: miniature gears gearbox loam cake central part is equipped with location copper base bearing lining (17); Be with waterproof grommet (6) on output shaft (5), its front end is provided with waterproof copper base bearing (7), and waterproof copper base bearing (7) is placed in the inboard of the axis hole (8) of casing, and output shaft (5) front end passes axis hole (8) and exposes; At rear chassis (4) tail end, positive and negative electrode (9) and electrode outlet line (10) are located, the waterproof resin of having annotated (11); Rear chassis (4) and casing (3) snapping, its joint is equipped with waterproof grommet.

2, according to the described miniature waterproof machine of claim 1, it is characterized in that: the miniature gears gearbox has: the speed-changing gear box of different speed reducing ratio such as 1:3,1:5,1:10,1:15,1:20,1:50,1:52,1:63,1:75,1:100,1:150,1:210,1:250,1:298,1:340.

3, according to the described miniature waterproof machine of claim 1, it is characterized in that: on the electrode outlet line (10), twine two annular guard rings (15).

4, according to the described miniature waterproof machine of claim 1, it is characterized in that: be added with spaghetti (12) on the electrode outlet line (10), electrode outlet line (10) is connected with waterproof electrode wires plug (13).