CN202273851U

CN202273851U - Compound self-sucking pump

Info

Publication number: CN202273851U
Application number: CN2011203492137U
Authority: CN
Inventors: 王志忠; 王志国
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-15
Filing date: 2011-09-15
Publication date: 2012-06-13
Anticipated expiration: 2021-09-15

Abstract

The utility model discloses a compound self-sucking pump, which comprises a pump shell, a transmission device, a liquid inlet and a liquid outlet, wherein the transmission device is arranged in the inner cavity of the pump shell; the liquid inlet and the liquid outlet are formed on the pump shell; the transmission device comprises a pump shaft and an auxiliary shaft driven by using the pump shaft; the inner cavity of the pump shell is partitioned into two cavities by using the pump shaft and the auxiliary shaft; the two cavities are communicated to the outside the pump shell by using the liquid inlet and the liquid outlet respectively; the pump shaft and the auxiliary shaft are correspondingly provided with a convex part and a concave part which are matched with each other and are arranged along the axial directions of the pump shaft and the auxiliary shaft; and the inner cavity of the pump shell is partitioned into at least two parts by using the convex part of the pump shaft. The compound self-sucking pump has the advantages of small size, light weight, simple structure, convenience for manufacturing, low cost, reliable work, convenience for maintaining, and the like, and is convenient to carry; and when the compound self-sucking pump is in use, a rotating speed can be in the range of 800-3,000 revolutions per minute, the pumping head and the flow of the pump are variable, water, oil and all liquid media can be conveyed, and matching of teeth is small, so that liquids with high viscosity can be conveyed, and power can be adjusted at random.

Description

The combined type self-priming pump

Technical field

The utility model relates to a kind of liquid medium transfer pump, is a kind of combined type self-priming pump specifically.

Background technique

Existing self-priming pump, the pump housing generally adopt case structure, and inside is provided with exhaust cavity specially, are used for the self-priming process and discharge the gas in the pump housing, make that the volume of whole self-priming pump is big, Heavy Weight, and complex structure, inconvenient operation.

Summary of the invention

To above-mentioned deficiency of the prior art, it is little that the utility model aims to provide a kind of volume, in light weight, simple in structure, easy to operate combined type self-priming pump.

The technological scheme of the utility model is: the combined type self-priming pump; Comprise pump case; Be located at transmission device and the liquor inlet on the pump case and the liquid outlet of pump case inner chamber; Said transmission device comprises a pump shaft and is made up of the auxiliary axis that pump shaft drives that said pump shaft and auxiliary axis are divided into two cavitys with the pump case inner chamber, and said liquor inlet and liquid outlet are communicated to two cavitys outside the pump case respectively; Corresponding on said pump shaft and auxiliary axis have protuberance and a recess that matches and be provided with along its axial direction, and the protuberance on the said pump shaft is divided at least two parts with said pump case inner chamber.

Through the cooperation between pump shaft and the auxiliary axis and on jog cooperate, by forming cavity between protuberance on auxiliary axis, pump shaft, the pump shaft and the pump case inwall, and then realize the decompression and the supercharging of pump.

It is little to the utlity model has volume, in light weight, simple in structure, easy to make, and cost is low, and reliable operation and advantage such as easy to maintenance are easy to carry; When using the utility model, rotating speed can be in 800～3000r/min scope, and its lift and flow are variable.

With the gear pump difference be, but the utility model transporting water, oil and all liq medium, because of its tooth cooperation is few, thus also can carry for the high liquid of viscosity, and also power can be regulated arbitrarily.

Description of drawings

Fig. 1 is the internal structure schematic representation of the utility model;

Fig. 2 is another status architecture schematic representation of Fig. 1;

Fig. 3 is the schematic perspective view of pump case among Fig. 1.

Embodiment

Below in conjunction with combining specific embodiment and accompanying drawing the utility model is further explained.

Referring to Fig. 1 to Fig. 3; Said combined type self-priming pump; Comprise pump case 1, be located at transmission device and the liquor inlet on the pump case 14 and liquid outlet 5 of pump case 1 inner chamber, said transmission device comprises a pump shaft 2 and is made up of the auxiliary axis 3 that pump shaft 2 drives; Said pump shaft 2 and auxiliary axis 3 are divided into two

cavitys

40,50 with pump case 1 inner chamber; Said liquor inlet 4 is communicated to two

cavitys

40,50 outside the pump case 1 respectively with liquid outlet 5, and corresponding on said pump shaft 2 and auxiliary axis 3 have protuberance 21 and a recess 31 that matches and be provided with along its axial direction, and the protuberance 21 on the said pump shaft 2 is divided at least two parts with said pump case 1 inner chamber.

The key point of the utility model is: saidly cooperated the imbibition of decompression respectively and the supercharging discharge opeing of two

cavitys

40,50 of realizing by pump shaft 2 and auxiliary axis 3 pump case being opened in 1 minute with rolling between the pump shaft 2 by auxiliary axis 3.

Particularly; Said combined type self-priming pump comprises pump case 1, pump shaft 2, auxiliary axis 3, liquor inlet 4, liquid outlet 5, and the inner chamber of said pump case 1 forms by two cylinder cambered surfaces are crossing, and is preferred; Said two cylinder cambered surfaces intersect with the acute angle radian; Said pump shaft 2 and auxiliary axis 3 are located at respectively in the said two cylinder cambered surfaces, said pump shaft 2 and the concentricity axle of auxiliary axis 3 and this two cylinders cambered surface, and the said auxiliary axis 3 cylinder cambered surface little Spielpassung corresponding with it; That is to say that the diameter of axle of said auxiliary axis 3 equates with the internal diameter of said cylinder cambered surface.

And liquor inlet 4 on the pump case 1 and liquid outlet 5 are located at respectively near said auxiliary axis 3 both sides, and are positioned on institute's pump shaft 2 pairing cylinder cambered surfaces, and be preferred, and said liquor inlet 4 is divided into the intersection that two cylinder cambered surfaces intersect with liquid outlet 5.Behind pack into pump shaft 2 and auxiliary axis 3; Liquor inlet 4 on the said pump case 1 will dwindle in the passway of pump case 1 inwall with liquid outlet 5; In order to increase its passway,, establish water conservancy diversion chamfering 6 on liquor inlet 4 in said pump case 1 and liquid outlet 5 ends referring to Fig. 3 at pump case 1 inwall place.

Further, the protuberance 21 on the said pump shaft 2 is at least two, and it cooperates with recess 31 on the auxiliary axis 3 successively.This example is preferred, and the protuberance 21 on the said pump shaft 2 is two, and the recess 31 on the auxiliary axis 3 is one, and two protuberances 21 cooperate with a recess 31 successively.And the cooperation between said protuberance 21 and the recess 31 to be tooth cooperate or protuberance 21 ends cooperate with pump case 1 any of internal chamber wall Spielpassung.

The working principle of the utility model is: with the protuberance on the pump shaft 2 21 is two, and the recess on the auxiliary axis 3 is one and is example, with the liquor inlet 4 access liquid input ends of said combined type self-priming pump; And said liquid outlet 5 is connected to the liquid output terminal, when the motor that connects pump shaft 2 rotates, referring to Fig. 1 and Fig. 2; When the protuberance 21 on the pump shaft 2 went to recess 31 cooperations on the auxiliary axis 3, pump case 1 inside was two

cavitys

40,50, when motor is rotated further; Because pump shaft 2 rotates counterclockwise, the cavity 40 that communicates with said liquid outlet 5 is divided into two parts 40,40 ' by said pump shaft 2 with auxiliary axis 3, and wherein one is high-pressure chamber 40; Another is a low pressure cavity 40 ', because the protuberance 21 on the pump shaft 2 rotates counterclockwise and the clockwise rotating of auxiliary axis 3, makes that the volume of high-pressure chamber 40 is more and more littler; Make the pressure in it increase, liquid in it or air will be discharged from said liquid outlet 5, thereby the volume that forms on the said low pressure cavity 40 ' is increasing; When low pressure cavity 40 ' communicates with said liquor inlet 4; Low pressure cavity 40 ' can further be full of said low pressure cavity 40 ', when the protuberance 21 on the said pump shaft 2 turns to the recess 31 on the said auxiliary axis 3 from outer imbitition; Liquid in the said low pressure cavity 40 ' is filled; Thereby form the cavity 50 among said Fig. 1, when being rotated further, repeat above-mentioned action.Repeat continuous work with this, make liquid constantly suck exactly, from liquid outlet 5, constantly discharge again, form the normal and continuous operation of this pump from liquor inlet 4.

The above is merely the detailed description of the utility model preferred embodiment and graphic, is not to be used for limiting the utility model, and the embodiment or the approximate construction of all similar variations of doing according to the creation spirit of the utility model all should be contained among the utility model.

Claims

1. combined type self-priming pump; Comprise pump case; Be located at transmission device and the liquor inlet on the pump case and the liquid outlet of pump case inner chamber; It is characterized in that: said transmission device comprises a pump shaft and is made up of the auxiliary axis that pump shaft drives that said pump shaft and auxiliary axis are divided into two cavitys with the pump case inner chamber, and said liquor inlet and liquid outlet are communicated to two cavitys outside the pump case respectively; Corresponding on said pump shaft and auxiliary axis have protuberance and a recess that matches and be provided with along its axial direction, and the protuberance on the said pump shaft is divided at least two parts with said pump case inner chamber.

2. combined type self-priming pump according to claim 1 is characterized in that: said pump case inside forms by two cylinder cambered surfaces are crossing.

3. combined type self-priming pump according to claim 2 is characterized in that: said two cylinder cambered surfaces intersect with the acute angle radian.

4. according to claim 2 or 3 described combined type self-priming pumps, it is characterized in that: said pump shaft and auxiliary axis are divided in the two cylinder cambered surfaces, and the said auxiliary axis cylinder cambered surface Spielpassung corresponding with it.

5. combined type self-priming pump according to claim 4 is characterized in that: said liquor inlet and liquid outlet are divided near the auxiliary axis both sides, and are positioned on the corresponding cylinder cambered surface of the said pump housing.

6. combined type self-priming pump according to claim 5 is characterized in that: liquor inlet and liquid outlet end in the said pump case are divided into two cylinder arc face intersections.

7. combined type self-priming pump according to claim 6 is characterized in that: establish the water conservancy diversion chamfering on liquor inlet in the said pump case and the liquid outlet end.

8. combined type self-priming pump according to claim 1 is characterized in that: the protuberance on the said pump shaft is at least two, and it cooperates with recess on the auxiliary axis successively.

9. combined type self-priming pump according to claim 8 is characterized in that: the protuberance on the said pump shaft is two, and the recess on the auxiliary axis is one, and two protuberances cooperate with a recess successively.

10. combined type self-priming pump according to claim 9 is characterized in that: the cooperation between said protuberance and the recess is that tooth cooperates or any cooperation of protuberance end and pump case internal chamber wall Spielpassung.