CN2182488Y - Vibrating electric machine - Google Patents

Abstract

The utility model relates to a vibrating motor which is composed of a motor, eccentric blocks, fastening screw nails, an end cover, an elastic cushion, a bearing, a shaft, a positioning key and positioning pins. The utility model is characterized in that the inner ring of the bearing and the shaft are in interstice fit, and the elastic cushion is arranged on the inner side of the bearing; the eccentric block on the inner side is additionally provided with a positioning hole and the positioning key; the eccentric block on an outer side is provided with from 1 to 4 positioning pins. The axial component force of the vibrating motor, which does not act on the bearing, drives the shaft and the inner ring of the bearing to relatively move through the elastic cushion. The utility model solves the problems of damage on the vibrating motor and machinery equipment caused by the movement of the eccentric blocks, and improves the stability of the vibrating force of the vibrating motor.

Description

Vibrating electric machine

The utility model relates to a kind of motor, particularly a kind of vibration motor.

Present used vibration motor is the structure that is combined into by power+eccentric stiffener, there are the following problems for existing this structure: bearing of (1) motor and end cap, bearing chamber is easy to wear and damage, this is because the effect of axial thrust load is delivered to end cap by bearing inner ring; (2) eccentric block easily produces displacement, cause shaking force instability and vibration motor and machinery equipment fragile, its reason is because when adjusting the outside eccentric block of eccentric throw, direction that outside eccentric block produces power is an eccentric block to the inside, because the effect of this power makes outside eccentric block produce displacement to axle.

The purpose of this utility model is to provide a kind of makes axle and bearing inner ring that relative motion can be arranged by increasing cushion, and by alignment pin with outside eccentric block and the relatively-stationary vibration motor of inboard eccentric block.

The purpose of this utility model is achieved in that vibration motor is to be made of motor, inboard eccentric block, outside eccentric block, trip bolt, end cap, bearing, cushion, axle, positioning key and alignment pin.

The interior ring of a, bearing (6) and axle adopt matched in clearance between (8), and at the installed inside cushion (7) of bearing (6);

B, inboard eccentric block (2), outside eccentric block (3) are fixed on the axle by trip bolt (1), (4) and positioning key (9); Go up 10～15 location holes of increase at inboard eccentric block (2), positioning key (9) is fixed on inboard eccentric block (2) on the axle, and outside eccentric block (3) is fixedlyed connected with inboard eccentric block (2) by alignment pin (10).Described alignment pin is 1～4.

Because said structure, thus solved end cap (5) with the effect of the suffered axial force of bearing (6) flimsy problem, improved the stability of vibrations equipment shaking force.

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1, the utility model overall structure cutaway view;

Fig. 2, eccentric block structure half sectional view of the present utility model.

Among the figure: (1), trip bolt; (2), inboard eccentric block; (3), outside eccentric block; (4), trip bolt; (5), end cap; (6), bearing; (7), cushion; (8), axle; (9), positioning key; (10), positioning key.

As shown in the figure, vibration motor has replaced the structure be made up of power+eccentric stiffener, and vibration motor is by motor reel two ends setting-up eccentricity piece, produces centrifugal force when motor rotates, this power passes by the base of motor, drives electromechanical equipment and does back and forth or gyration.Localization method between eccentric block structure of the present utility model and the eccentric block, and the method for attachment of eccentric block and axle have guaranteed that each eccentric block can not produce the stable of mobile and shaking force when work, and have prolonged the life-span of vibration motor widely.

Claims (2)

1, vibration motor is to be made of motor, inboard eccentric block, outside eccentric block, trip bolt, end cap, bearing, cushion, axle, positioning key and alignment pin, it is characterized in that:

The interior ring of a, bearing (6) and axle adopt matched in clearance between (8), and at the installed inside cushion (7) of bearing (6);

B, inboard eccentric block (2), outside eccentric block (3) are fixed on the axle by trip bolt (1), (4) and positioning key (9); Go up 10～15 location holes of increase at inboard eccentric block (2), positioning key (9) is fixed on inboard eccentric block (2) on the axle, and outside eccentric block (3) is fixedlyed connected with inboard eccentric block (2) by alignment pin (10).

2, vibration motor according to claim 1 is characterized in that: the quantity of alignment pin is 1～4.

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