CN202906635U

CN202906635U - Wear-resistant adjusting washer used for low-power motor

Info

Publication number: CN202906635U
Application number: CN 201220531735
Authority: CN
Inventors: 张坚新
Original assignee: JIANGMEN GMJ MOTOR Co Ltd
Current assignee: JIANGMEN GLORY MOTOR MANUFACTORY LTD.
Priority date: 2012-10-15
Filing date: 2012-10-15
Publication date: 2013-04-24
Anticipated expiration: 2022-10-15

Abstract

The utility model relates to a wear-resistant adjusting washer used for a low-power motor, applied to the low-power motor to adjust an axial play and a shaft extending length of a rotor. The wear-resistant adjusting washer comprises a plain washer body and at least four even numbers of concave-convex groove ridges which are circumferentially and uniformly distributed on a plane of the plain washer body and are radiated radially, wherein front and back sides of the concave-convex direction of the adjacent concave-convex groove ridges are mutually staggered. The wear-resistant adjusting washer of the utility model is installed between plain washers and a metal corrugated washer, and can be arranged at one side or two sides of the metal corrugated washer, wherein the plain washers are arranged at two outer sides, the plain washers at the two outer sides are respectively contacted with end faces of a sliding bearing and an insulating end plate or a commutator, in this way, when the rotor rotates at a high speed, the wear-resistant adjusting washer of the utility model can drive the plain washers to rotate synchronously, so as to reduce a rotation speed difference therebetween, therefore, the wear-resistant adjusting washer of the utility model has the beneficial effects of reducing frictional heating between the washers as well as between the washer and the insulating end plate, avoiding end wearing or fusion of the plain washer or the insulating end plate, reducing an abnormal heating fault of the motor and an unloaded frictional resistance of the motor, reducing loss power of the motor, and raising an efficiency of the motor.

Description

Small power motor is with wear-resisting adjustment packing ring

Technical field

The utility model relates to a kind of small power motor that is applied to small power motor adjusted rotor axial string quantity of motion and length of shaft with wear-resisting adjustment packing ring.

Background technology

In the prior art, small power motor has all kinds with wear-resisting adjustment packing ring, comprising nonmetal plain washer, metallic flat gasket, wavy metal packing ring etc. are arranged, usually clamp between the insulating end plate or commutator end face and sliding bearing end face that a wavy metal packing ring mode is installed in the rotor axis of electric two ends with two plain washers, change plain washer thickness and quantity, can regulate rotor axial string momentum and length of shaft; Because these packing rings are moving and sliding bearing between the two quiet that are in rotor, rotor high-speed rotation make between the packing ring and packing ring and insulating end plate between have the relative rotational sassafras heating that rubs mutually, especially the relative velocity between wavy metal packing ring and the adjacent flat packing ring is higher, sometimes plain washer does not even rotate with the axis, easily plain washer or insulating end plate end are caused larger wearing and tearing or melting, rotor axial string quantity of motion and length of shaft have been changed, easily cause equipment fault or motor abnormality heating accident, even motor damage.

The utility model content

The technical problems to be solved in the utility model provides a kind of sassafras heating that rubs that can reduce between the packing ring and between packing ring and the insulating end plate, avoid the wearing and tearing of plain washer or insulating end plate end or melting, reduce the frictional resistance of motor abnormality heating accident and empty load of motor, reduce the loss power of motor, the small power motor that improves electric efficiency is with wear-resisting adjustment packing ring.

For solving the problems of the technologies described above, the utility model small power motor with the technical scheme of wear-resisting adjustment packing ring is: comprise the plain washer body, it is characterized in that: be evenly distributed in concavo-convex piston ring land at least four even numbers, radial radiation on the plane of described plain washer body, every adjacent concavo-convex piston ring land concave and convex direction positive and negative staggers mutually.

As one of optimal technical scheme of the present utility model be: described concavo-convex piston ring land has four.

As two of optimal technical scheme of the present utility model be: described concavo-convex piston ring land is the concavo-convex piston ring land of a kind of circular arc.

The beneficial effects of the utility model are: the utility model is installed between plain washer and the wavy metal packing ring, can be at the one-sided or bilateral of wavy metal packing ring, two outsides are plain washers, two outside plain washers respectively with the end contact of sliding bearing and insulating end plate or commutator, because the utility model is to be evenly distributed at least four even numbers on the plane of plain washer body, the concavo-convex piston ring land of radial radiation, every adjacent concavo-convex piston ring land concave and convex direction positive and negative staggers mutually, when it is arranged on when using between plain washer and the wavy metal packing ring, the wavy metal packing ring imposes on its elastic force and the concavo-convex piston ring land on itself to the effect of plain washer, in the rotor high-speed rotation, can drive together synchronous rotary of plain washer, the rotary speed that reduces between them is poor, has the sassafras heating that rubs that can reduce between the packing ring and between packing ring and the insulating end plate, avoid the wearing and tearing of plain washer or insulating end plate end or melting, reduce the frictional resistance of motor abnormality heating accident and empty load of motor, reduce the loss power of motor, improve the beneficial effect of electric efficiency.

Description of drawings

Below in conjunction with accompanying drawing small power motor of the present utility model is described in more detail with wear-resisting adjustment packing ring.

Fig. 1 is the utility model small power motor with the front view of wear-resisting adjustment packing ring.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the vertical view of Fig. 1.

Fig. 4 is the A partial enlarged drawing of Fig. 3.

To be the utility model small power motor be installed in structure cutaway view between rotor commutator and the sliding bearing with wear-resisting adjustment packing ring to Fig. 5.

To be the utility model small power motor be installed in structure cutaway view between rotor insulation end plate and the sliding bearing with wear-resisting adjustment packing ring to Fig. 6.

Fig. 7 is that the utility model small power motor is installed in the one-sided partial structurtes cutaway view of wavy metal packing ring with wear-resisting adjustment packing ring.

Fig. 8 is the utility model small power motor is installed in wavy metal packing ring bilateral with wear-resisting adjustment packing ring partial structurtes cutaway view.

Embodiment

Shown in Fig. 1～4, the utility model small power motor with the execution mode of wear-resisting adjustment packing ring is: be evenly distributed in concavo-convex piston ring land 2 at least four even numbers, radial radiation on the plane of described plain washer body 1, every adjacent concavo-convex piston ring land 2 concave and convex direction positive and negatives stagger mutually.Plain washer body 1 adopts high-abrasive material making effect better; It is good that the quantity of concavo-convex piston ring land 2 is four, six, eight.

Shown in Fig. 1～4, as one of preferred implementation of the present utility model be: described concavo-convex piston ring land 2 has four.

Shown in Fig. 1～4, as two of preferred implementation of the present utility model be: described concavo-convex piston ring land 2 is the concavo-convex piston ring lands of a kind of circular arc.

Shown in Fig. 5～8, the utility model is installed between plain washer 3 and the wavy metal packing ring 4, can be at the one-sided or bilateral of wavy metal packing ring 4, two outsides are plain washers 3, two outside plain washers 3 respectively with the end contact of sliding bearing 5 and insulating end plate 6 or commutator 7, because the utility model is to be evenly distributed at least four even numbers on the plane of plain washer body 1, the concavo-convex piston ring land 2 of radial radiation, every adjacent concavo-convex piston ring land 2 concave and convex direction positive and negatives stagger mutually, when it is arranged on when using between plain washer 3 and the wavy metal packing ring 4, wavy metal packing ring 4 imposes on the effect of its elastic force and the 2 pairs of plain washers 3 of concavo-convex piston ring land on itself, in rotor 8 High Rotation Speeds, can drive together synchronous rotary of plain washer 3, the rotary speed that reduces between them is poor, has the sassafras heating that rubs that can reduce between the packing ring and between packing ring and the insulating end plate, avoid the wearing and tearing of plain washer or insulating end plate end or melting, reduce the frictional resistance of motor abnormality heating accident and empty load of motor, reduce the loss power of motor, improve the beneficial effect of electric efficiency.

The above be the utility model preferred embodiment, it does not consist of the restriction to the utility model protection range, so long as realize the purpose of this utility model with essentially identical means, all should belong to protection range of the present utility model.

Claims

1. a small power motor is with wear-resisting adjustment packing ring, comprise plain washer body (1), it is characterized in that: be evenly distributed in concavo-convex piston ring land at least four even numbers, radial radiation (2) on the plane of described plain washer body (1), adjacent every concavo-convex piston ring land (2) concave and convex direction positive and negative staggers mutually.

2. small power motor according to claim 1 is with wear-resisting adjustment packing ring, and it is characterized in that: described concavo-convex piston ring land (2) has four.

3. small power motor according to claim 1 and 2 is with wear-resisting adjustment packing ring, and it is characterized in that: described concavo-convex piston ring land (2) is the concavo-convex piston ring land of a kind of circular arc.