CN205212620U - Sealing member of motor shaft through wires hole - Google Patents

Abstract

The utility model relates to a sealing member of motor shaft through wires hole, include the hollow cylinder body of making by elastic material, its characterized in that, be equipped with a plurality of unsmooth slots along cylinder axle center orientation evenly distributed on the interior outward flange of body. The utility model discloses an elastic sealing element assembly at the clearance position of wire with the through wires hole, hole and the outer surface contact of wire produce sealedly, surface and through wires hole contact produce sealedly, sealing ring simple structure, easily assembly can effectually prevent inside external muddy water, dust enter into the motor, the inefficacy of intaking of the motor avoided.

Description

A kind of seal of motor shaft through wires hole

Technical field

The utility model relates to a kind of seal, particularly relates to a kind of seal of motor shaft through wires hole, belongs to motor seal technical field.

Background technology

At present, along with the extensive use of electric motor car, motor is more and more paid attention to as the parts of its key, because electric vehicle motor axle needs the threading that punches, after threading, still there is gap between through wires hole and wire.In use, the muddy water in natural environment, dust easily enter into motor internal by this gap in electric motor car, cause motor entering water to lose efficacy.Now, in order to address this problem, seal mainly through the mode of the injection of gap between through wires hole and wire fluid sealant in industry, but, because fluid sealant is in injection, solidification easily flowing in early stage, make still there is gap between through wires hole and wire, easily cause muddy water to enter, cause motor failure, simultaneously, injecting glue process efficiency is low, also causes production cost to increase.

So, how effectively can realize the sealing between the threading axis hole of motor and wire, become the key issue that of current power garage industry is urgently to be resolved hurrily.But due to the restriction of structure, material and assembly technology, in the field of business so far, also there is not a kind of solution that effectively can realize the sealing between the threading axis hole of motor and wire.

Utility model content

The deficiency that the utility model exists for Sealing Technology between existing motor threading axis hole and wire, provides a kind of seal of motor shaft through wires hole.

The technical scheme that the utility model solves the problems of the technologies described above is as follows:

A seal for motor shaft through wires hole, comprises the hollow cylindrical body be made up of elastomeric material, it is characterized in that, the outer edge of described body is provided with some along the equally distributed concave convex groove of cylinder axis direction.

The beneficial effects of the utility model are:

1) elastic sealing structure that the utility model adopts is assemblied in the position, gap of wire and through wires hole, endoporus and wire exterior surface, and produce sealing, outer surface contacts with through wires hole, produces sealing; Seal ring structure is simple, is easy to assembling, and effectively can stop extraneous muddy water, dust enters into motor internal, the motor entering water avoided lost efficacy.

2) compared with the mode of present injection fluid sealant, improve the anti-muddy water of motor, the ability of dust, save production cost.

On the basis of technique scheme, the utility model can also do following improvement.

Further, described elastomeric material is rubber, polyurethane.

The beneficial effect adopting above-mentioned further scheme is that sealing effectiveness is better.

Further, described body end is designed with pyramidal structure.

The beneficial effect of above-mentioned further scheme is adopted to be seal is more shown in and is convenient to assembling.

Accompanying drawing explanation

Fig. 1 is the utility model seal configuration schematic diagram;

Fig. 2 is the utility model seal use procedure schematic diagram;

In Fig. 1,2,1, body; 2, concave convex groove; 3, pyramidal structure

Embodiment

Be described principle of the present utility model and feature below in conjunction with example, example, only for explaining the utility model, is not intended to limit scope of the present utility model.

A kind of seal of motor shaft through wires hole, comprise the hollow cylindrical body 1 be made up of polyurethane, the inward flange of described body 1 and outward flange are uniformly distributed 4 concave convex grooves 2 along cylinder axis direction, the end of body 1 is designed with pyramidal structure 3, during use, above-mentioned seal is equipped with at the position, gap of through wires hole and wire, seal outer rim position contacts with threading axis hole, pass through interference extrusion, formation seal outer diameter seals, seal inner edge and wire exterior surface, by interference extrusion, produce inner edge sealing.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.

Claims (3)

1. a seal for motor shaft through wires hole, comprises the hollow cylindrical body be made up of elastomeric material, it is characterized in that, the outer edge of described body is provided with some along the equally distributed concave convex groove of cylinder axis direction.

2. the seal of a kind of motor shaft through wires hole according to claim 1, is characterized in that, described elastomeric material is rubber, polyurethane.

3. the seal of a kind of motor shaft through wires hole according to claim 1 and 2, it is characterized in that, described body end is designed with pyramidal structure.