CN203702666U - Centrifugal pump cooling dustproof disk - Google Patents

Abstract

The utility model discloses a centrifugal pump cooling dustproof disk which comprises a shaft hole which is formed in the center, wherein an annular body which is integrally molded is arranged on the periphery of the shaft hole; interference rubber shaft sleeves are arranged on the end faces of two sides of the shaft hole; an arc-shaped fan blade which forms an acute angle with the annular face is arranged on the end face of one side of the annular body. The rubber shaft sleeves are arranged on the end faces of the two sides of the shaft hole, and the sealing property between a disk body and a rotating shaft is increased; in order to obtain a better sealing effect, the interference rubber shaft sleeves are utilized, and impurities such as dust and rainwater are fully prevented from entering a bearing cavity along the axial direction; due to the arc-shaped fan blade on the annular face of the disk body, air motion in the bearing cavity can be increased, so the effect of cooling parts inside a pump is realized; in order to concentrate airflow which is formed by the rotation of the fan blade at the bearing part, the fan blade and the annular face are arranged in an acute angle, the formed airflow concentrates to reduce the temperature of the bearing part, and the service life of a bearing is prolonged.

Description

Centrifugal pump cooling type dust pan

Technical field

The utility model relates to the auxiliary spare part in a kind of centrifugal pump, particularly a kind of centrifugal pump cooling type dust pan.

Background technique

Various types of pumps are widely used in industrial production, centrifugal pump is a kind of common pump wherein, often in very severe working environment, therefore dust is easy to enter the bearing bore in centrifugal pump, cause the excess friction of bearing, the life cycle of pump is shortened, therefore dust pan is set in centrifugal pump and enters bearing bore to stop impurity.The dust pan of centrifugal pump is generally with marking closely screw, dust pan to be fixed on running shaft, and to stop that foreign material enter bearing bore, sealing simultaneously prevents that the lubricant oil in bearing bore from outwards flowing out.Although although the dust pan of existing centrifugal pump bearing chamber arranged outside can stop most impurity, but often cannot stop that when being installed on when outdoor rainwater enters in bearing bore between dust pan and running shaft, after the lubricant oil in bearing bore is containing impurity such as rains, will affect the lubrication effect to bearing, cause the life-span of bearing to be reduced.In addition, although also there is the setting of flabellum on existing dust pan, flabellum is to be generally vertical arrangement with disc surfaces, and the air-flow forming when rotation comparatively disperses, and the cooling action that bearing portion is played is limited.

For above-mentioned deficiency, a kind of Dustproof dish for centrifugal pump need to be provided, can play good sealing effect, and bearing portion is played to good cooling action.

Model utility content

In view of this, the utility model provides a kind of centrifugal pump cooling type dust pan, and simple in structure, consumed power is little, easy to use, good sealing effect, and also the air-flow forming when the rotation of flabellum on disk body can concentrate bearing portion is dispelled the heat, and cooling effect is obvious.

The utility model solves the problems of the technologies described above by following technological means: a kind of centrifugal pump cooling type dust pan, comprise the axis hole at the center of being arranged at, axis hole periphery has integrated annular solid, on the end face of described axis hole both sides, be provided with interference rubber axle sleeve, the end face of described annular solid one side is provided with the arc flabellum that is acute angle with ring surface.

Further, described axis hole inner side is provided with two-stage O RunddichtringO.

Further, the anchor ring at described arc flabellum and annular solid place is the angle of 60 °-80 °.

Further, on described annular solid, the upper end of a side end face relative to flabellum is provided with boss.

The beneficial effects of the utility model: centrifugal pump cooling type dust pan of the present utility model, comprise the axis hole at the center of being arranged at, axis hole periphery has integrated annular solid, on the end face of described axis hole both sides, be provided with interference rubber axle sleeve, the end face of described annular solid one side is provided with the arc flabellum that is acute angle with ring surface.Rubber axle sleeve is set on the end face of axis hole both sides, the sealing of disk body and running shaft is strengthened, in order to make the better effects if of sealing, be arranged to interference rubber axle sleeve, can fully prevent that the impurity such as dust, rainwater is along axially entering in bearing bore; Arc flabellum on disk body anchor ring can strengthen Air Flow in bearing bore, play the effect of component in coolant pump, in order to make the air-flow that flabellum when rotation forms concentrate on bearing portion, flabellum and ring surface are to acute angle setting, in the air flow collection that can make to form, reduce the temperature of bearing portion, extend the working life of bearing.Dust pan structure of the present utility model is relatively simple, will prevent dust, cooling structure is integrated in one, and extended the working life of bearing, and be conducive to the standby and maintenance of the integral installation of pump.

Brief description of the drawings

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

Fig. 1 is structural representation of the present utility model;

Fig. 2 is left view of the present utility model.

Embodiment

Below with reference to accompanying drawing, the utility model is elaborated, as shown in the figure: the centrifugal pump cooling type dust pan of the present embodiment, comprise the axis hole 1 at the center of being arranged at, axis hole periphery has integrated annular solid 2, on the end face of described axis hole both sides, be provided with interference rubber axle sleeve 3, the end face of described annular solid one side is provided with the arc flabellum 4 that is acute angle with ring surface.In order to strengthen the sealing between dust pan and running shaft, on the end face of axis hole both sides, be provided with interference rubber axle sleeve, can fully prevent that the impurity such as dust, rainwater is along axially entering in bearing bore.Flabellum on disk body anchor ring plays the effect that strengthens Air Flow in bearing bore, and flabellum is arranged to arc, increases with the surface of contact of air, has increased the amount of flow of air, can reduce the temperature of component in pump; Flow in order to make air-flow that flabellum when rotation forms concentrate on bearing portion, flabellum and ring surface are to acute angle setting, in the air flow collection that can make to form, reduce the temperature of bearing portion, the working life of prolongation bearing.

As the further improvement of technique scheme, described axis hole 1 inner side is provided with two-stage O RunddichtringO 5.In order to make dust pan better at axial sealing effect, prevent the rear sealing effect that affects of bearing housing wearing and tearing of axis hole both sides, in axis hole inner side, two-stage O RunddichtringO is set, farthest ensure that dust pan and running shaft are at axial sealing effect, prevent that impurity from, from axially entering bearing bore, affecting the working life of bearing.

As the further improvement of technique scheme, described arc flabellum 4 is the angle of 60 °-80 ° with the anchor ring at annular solid 2 places.The angle setting of arc flabellum and ring surface should be reasonable, and angle too conference is too disperseed flowing of air, and cooling effect is poor, less, can make the scope of Air Flow too small, and cooling effect is poor equally; For flowing at bearing portion of making that air-flow that flabellum when rotation forms can comparatively concentrate, preferably concave surface and the anchor ring of arc flabellum are 70 ° of angles, can make the temperature of the reduction bearing portion that the air-flow of formation comparatively concentrates, the working life of prolongation bearing.

As the further improvement of technique scheme, on described annular solid 2, the upper end of a side end face relative to flabellum 4 is provided with boss 6.The end face upper end of annular solid arranges boss, is convenient to, between dust pan and bearing gland, labyrinth seal is set, and dust pan can be guaranteed in axial and longitudinal sealing, has optimized the sealing effect between dust pan and bearing bore.

Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims (4)

1. a centrifugal pump cooling type dust pan, comprise the axis hole (1) at the center of being arranged at, axis hole periphery has integrated annular solid (2), it is characterized in that: on the end face of described axis hole both sides, be provided with interference rubber axle sleeve (3), the end face of described annular solid one side is provided with the arc flabellum (4) that is acute angle with ring surface.

2. centrifugal pump cooling type dust pan according to claim 1, is characterized in that: described axis hole (1) inner side is provided with two-stage O RunddichtringO (5).

3. centrifugal pump cooling type dust pan according to claim 2, is characterized in that: described arc flabellum (4) is the angle of 60 °-80 ° with the anchor ring at annular solid (2) place.

4. centrifugal pump cooling type dust pan according to claim 3, is characterized in that: described annular solid (2) is upper is provided with boss (6) with the upper end of the relative side end face of flabellum (4).