CN200975330Y - Diaphram pump balance wheel - Google Patents

Abstract

The utility model relates to a membrane pump balance wheel, comprising an eccenter bracket, an eccenter and a bearing, the eccenter is pressed in the inner ring of the eccenter bracket, and then the bearing is pressed in the inner ring of the eccenter bracket, which is characterized in that: the utility model also comprises a bearing cover plate; the bearing is pressed by the bearing cover plate, and is fixed by screws. The utility model has the beneficial effects of avoiding the axial running of the bearing when the bearing cover plate is additionally arranged and then is fixed by screws.

Description

A kind of diaphragm pump escapement

Technical field

The utility model relates to a kind of diaphragm pump escapement.

Background technique

The problem that present most of diaphragm pump motor exists is to occur bigger noise after operation a period of time easily when diaphragm pump motor, its reason is that the fit of bearing and eccentric wheel support is by drive fit between bearing and the eccentric wheel support, because the close-fitting dynamics that bearing can not bear, not so the bearing outer ring change causes bearing itself bad, or add fastening glue therein, but motor running for a long time can cause heating and cause the fastening glue decreased performance.It is loosening that general diaphragm pump motor bearing can not occur in the operation of installation initial stage, but because of the diaphragm pump running principle is that the driven by motor eccentric wheel rotates, thereby the realization piston is made reciprocating type class straight line motion, and the radial component that bears at long-time operation process middle (center) bearing makes bearing axial float occur.

The model utility content

The purpose of this utility model provides a kind of diaphragm pump escapement, the axial float phenomenon that may occur in long-time operation process with the bearing that overcomes existing diaphragm pump.

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of diaphragm pump escapement comprises eccentric wheel support, eccentric wheel and bearing, and described eccentric wheel is pressed in the eccentric wheel support inner ring, again bearing is pressed into eccentric wheel support inner ring, it is characterized in that: also comprise bearing cover, described bearing cover is pushed down described bearing, and is lived by screw.

The beneficial effect of diaphragm pump escapement described in the utility model is: owing to added bearing cover, and fastening by screw, prevented the axial float that bearing may occur.

Description of drawings

Fig. 1 is the decomposition texture schematic representation of the described diaphragm pump escapement of the utility model embodiment.

Among the figure:

1, eccentric wheel support; 2, bearing; 3, eccentric wheel; 4, bearing cover; 5, screw.

Embodiment

With embodiment the utility model is described in further detail with reference to the accompanying drawings below.

As shown in Figure 1, the described diaphragm pump escapement of the utility model embodiment, comprise eccentric wheel support 1, eccentric wheel 3, bearing 2 and bearing cover 4, described eccentric wheel 3 is pressed in eccentric wheel support 1 inner ring, again bearing 2 is pressed into eccentric wheel support 1 inner ring, described bearing cover 4 is pushed down described bearing 2, and is fixed by screw 5.

Claims (1)

1, a kind of diaphragm pump escapement, comprise eccentric wheel support (1), eccentric wheel (3) and bearing (2), described eccentric wheel (3) is pressed in eccentric wheel support (1) inner ring, again bearing (2) is pressed into eccentric wheel support (1) inner ring, it is characterized in that: also comprise bearing cover (4), described bearing cover (4) is pushed down described bearing (2), and is fixed by screw (5).

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