CN209800249U

CN209800249U - Double-screw conveying pump

Info

Publication number: CN209800249U
Application number: CN201920657275.0U
Authority: CN
Inventors: 项晓忠; 项宣锦; 项喧博
Original assignee: Wenzhou Strong Machinery Technology Co Ltd
Current assignee: Wenzhou Strong Machinery Technology Co Ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2019-12-17
Anticipated expiration: 2029-05-08

Abstract

the utility model provides a double-screw conveying pump, which comprises a motor, a shaft coupling, a screw rod, a working chamber, a discharge port and a feed inlet, wherein the rotating shaft of the motor is connected with the shaft coupling through a pin key, the shaft coupling is connected with the screw rod through the pin key, the left end of the working chamber is connected with the feed inlet, the feed inlet is provided with a filtering mechanism, the filtering mechanism comprises a connecting flange, a connecting screw sleeve, a filtering barrel and a sealing ring, the connecting screw sleeve is in threaded connection with the feed inlet, the outer side of the connecting screw sleeve is fixedly connected with the connecting flange, the inner side of the connecting screw sleeve is connected with the filtering barrel, the filtering barrel is a shell structure with one end open, the open end of the filtering barrel is in sealing connection with the connecting screw sleeve, the side wall of the filtering barrel is provided with a plurality of filtering holes, the filtering barrel is arranged at intervals with the inner wall of the discharge port in the radial direction, the sealing ring, the middle of the sealing ring is provided with a through hole.

Description

Double-screw conveying pump

Technical Field

The utility model relates to a double-screw conveying pump.

Background

The double-screw pump is characterized in that a sealed cavity with constant volume is formed between a screw sleeve and a pump body or a lining which are mutually meshed on a main driving shaft and a driven shaft, materials are conveyed into a working cavity from a feeding port along with the rotation of a screw shaft and then are stirred by the double screws and finally flow out from a discharging port, and the materials entering the cavity need to be extruded and stirred by the double screws, so that the work of the double screws can be influenced if impurities are brought into the materials entering the cavity, and therefore, the materials entering the pump body need to be filtered, and the feeding port of the existing screw pump is always in an open state when not used, so that dust and insects easily enter the pump body, and therefore, the feeding port needs to be closed when the screw pump is not used.

SUMMERY OF THE UTILITY MODEL

To the problem pointed out in the background art, the utility model provides a be equipped with filter equipment's twin-screw delivery pump at the pan feeding mouth to can close the pan feeding mouth through this filter equipment.

The technical scheme of the utility model is realized like this:

A double-screw conveying pump comprises a motor, a coupler, a screw, a working chamber, a discharge port and a feed port, wherein a rotating shaft of the motor is connected with the coupler through a pin key, the coupler is connected with the screw through the pin key, the screw is positioned in the working chamber, the upper end face of the working chamber is fixedly connected with the discharge port, the left end of the working chamber is connected with the feed port, the feed port is provided with a filtering mechanism, the filtering mechanism comprises a connecting flange, a connecting threaded sleeve, a filtering barrel and a sealing ring, the connecting threaded sleeve is in threaded connection with the feed port, the outer side of the connecting threaded sleeve is fixedly connected with the connecting flange, the inner side of the connecting threaded sleeve is connected with the filtering barrel, the filtering barrel is of a shell structure with an opening at one end, the opening end of the filtering barrel is in sealed connection with the connecting threaded sleeve, a plurality of filtering holes are formed in the side wall of the filtering barrel, the sealing ring is located the inboard of filter vat, and the edge of sealing ring and the inner wall sealing connection of discharge gate are equipped with the through-hole in the middle of the sealing ring, the diameter of through-hole be less than the diameter of filter vat.

The utility model discloses still further set up to, the outside of the bottom of filter vat be equipped with the sealing washer, the sealing washer make by elastic material.

The utility model discloses still further set up to, the filter vat with be connected swivel nut welded connection.

The utility model discloses still further set up to, still include the base, motor, shaft coupling, working chamber all with base fixed connection.

By adopting the technical scheme, the beneficial effects of the utility model are that:

The utility model provides a double screw pump, its pan feeding mouth is equipped with the filter equipment of convenient dismantlement and regulation, filter equipment passes through connecting swivel nut and pan feeding mouth threaded connection, the one end of connecting the swivel nut is equipped with flange, flange plays the effect of being connected with pipeline etc., the other end of connecting the swivel nut is equipped with the filter vat, the filter vat plays the effect of impurity in the filtration material, the position of connecting the adjustable filter vat of swivel nut through the rotating, bottom and the sealing ring contact when the filter vat, during the through-hole of shutoff sealing ring, the pan feeding mouth can be closed with the sealing ring cooperation in the bottom of filter vat, avoid the dust, in little insect etc. enters into the pump.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view showing the closed material inlet of the present invention;

fig. 3 is a schematic structural view illustrating that the feeding port of the present invention is opened.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention is described below with reference to fig. 1-3:

A double-screw conveying pump comprises a motor 1, a coupler 2, screws (not shown in the figure), a working cavity 3, a discharge hole 4 and a feeding hole 5.

The rotating shaft of the motor 1 is connected with the coupler 2 through a pin key, the coupler 2 is connected with the screw rod through the pin key, the screw rod is located in the working cavity 3, and the motor drives the screw rod to rotate through the coupler.

The upper end face of the working cavity 3 is fixedly connected with a discharge hole 4, the left end of the working cavity 3 is connected with a feeding hole 5, and the feeding hole 5 is provided with a filtering mechanism.

filtering mechanism include flange 6, connection swivel nut 7, filter vat 8 and sealing ring 9, connection swivel nut 7 and 5 threaded connection of pan feeding mouth, the outside and 6 fixed connection of flange of connection swivel nut 7, the inboard and the filter vat 8 of connection swivel nut 7 are connected, filter vat 8 be the shell structure that one end opening set up, the open end and the 7 sealing connection of connection swivel nut of filter vat 8 are equipped with a plurality of filtration pores 10 on the lateral wall of filter vat 8, filter vat 8 sets up at the inner wall interval of radial direction and discharge gate 4, sealing ring 9 is located the inboard of filter vat 8, the edge of sealing ring 9 and the inner wall sealing connection of discharge gate 4, the centre of sealing ring 9 is equipped with through-hole 11, the diameter of through-hole 11 be less than the diameter of filter vat 8.

The conveyed materials enter the filter barrel through the connecting threaded sleeve, flow out of the filter holes in the filter barrel and enter the discharge hole, then enter the working cavity through the through hole in the middle of the sealing ring and finally are discharged from the discharge hole.

wherein, the outside of the bottom of filter vat 8 be equipped with sealing washer 12, sealing washer 12 make by elastic material. The sealing ring can enhance the sealing matching capability of the filter barrel and the sealing ring.

Wherein, the filter vat 8 is connected with the connecting screw sleeve 7 by welding.

the motor comprises a motor 1, a coupler 2 and a working cavity 3, and is characterized by further comprising a base 13, wherein the motor 1, the coupler 2 and the working cavity 3 are fixedly connected with the base 13.

The utility model provides a double screw pump, its pan feeding mouth 5 is equipped with the filter equipment of convenient dismantlement and regulation, filter equipment passes through connecting swivel nut 7 and pan feeding mouth 5 threaded connection, the one end of connecting swivel nut 7 is equipped with flange 6, flange 6 plays the effect of being connected with pipeline etc., the other end of connecting swivel nut 7 is equipped with filter vat 8, filter vat 8 plays the effect of impurity in the filtration material, connect the position of the adjustable filter vat 8 of swivel nut 7 through the rotating, bottom and the contact of sealing ring 9 when filter vat 8, during the through-hole 11 of shutoff sealing ring 9, pan feeding mouth 5 can be closed with the cooperation of sealing ring 9 in the bottom of filter vat 8, avoid the dust, little insect etc. enters into in the pump.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a double-screw conveying pump, includes motor, shaft coupling, screw rod, working chamber, discharge gate and pan feeding mouth, the pivot and the shaft coupling of motor pass through the round pin key and are connected, the shaft coupling passes through round pin key connecting screw rod, and the screw rod is located the working chamber, the up end fixedly connected with discharge gate of working chamber, the left end of working chamber is connected with pan feeding mouth, its characterized in that: the pan feeding mouth be equipped with filtering mechanism, filtering mechanism include flange, connection swivel nut, filter vat and sealing ring, connection swivel nut and pan feeding mouth threaded connection, the outside and flange fixed connection of connection swivel nut, the inboard and the filter vat of connecting the swivel nut are connected, the filter vat be the shell structure that one end opening set up, the open end and the connection swivel nut sealing connection of filter vat are equipped with a plurality of filtration pores on the lateral wall of filter vat, the filter vat sets up at the inner wall interval of radial direction and discharge gate, the sealing ring is located the inboard of filter vat, the edge of sealing ring and the inner wall sealing connection of discharge gate, the centre of sealing ring is equipped with the through-hole, the diameter of through-hole be less than the diameter of filter vat.

2. a twin screw delivery pump according to claim 1, characterised in that: the outside of the bottom of the filter vat is provided with a sealing ring, and the sealing ring is made of elastic material.

3. A twin screw delivery pump according to claim 1, characterised in that: the filter barrel is connected with the connecting threaded sleeve in a welding mode.

4. A twin screw delivery pump according to claim 1, characterised in that: the motor, the coupler and the working cavity are fixedly connected with the base.