CN206111598U - Deep -well pump - Google Patents

Abstract

The utility model discloses a deep -well pump, its technical scheme main points are including motor, the pump body and the impeller in locating the pump body, the impeller pass through the main shaft with the output shaft of motor links to each other, and the motor includes casing, ring flange and end cover in proper order, and the conical surface has been offered at the lower border of ring flange, and in order to form the welding groove between ring flange and casing, the ring flange connects on the casing along the welding slot welding conical surface butt on the casing. Conical surface butt is at the last border of casing to form annular welding groove between the ring flange is with the casing, through along the welding groove with the ring flange welding on the casing, at first, guaranteed the nos burr of deep water pump outward appearance, prevent the use in the fish tail point, secondly, the welding mode, it is sealed that effectual and the connectivity is stable between the two, and radial movement takes place at operation in -process ring flange and end cover for effective to avoid electrical on the casing for in entering into the casing from the external world, causes in water the short circuit of motor, with the life who improves this deep water pump.

Description

Deep well pump

Technical field

This utility model is related to drainage machinery technical field of fetching water, more particularly to a kind of deep well pump.

Background technology

Deep well pump is the machinery for sinking to water lift in well bore.It is that the one of water is aspirated and conveyed in immersion underground water well Pump is planted, is widely used in deep extracting water of farmland discharging-irrigating, industrial and mining establishment, rural potable water and level of ground water etc..Closely Level of ground water is more and more deeper over year, and ordinary water pump is difficult to play a role, and deep-well demand pump is more and more.The maximum feature of deep well pump It is that motor and pump are made into vertical one, it is desirable to which diameter is little, conjuncted straight-bar type.

Common deep well pump as shown in figure 1, it includes motor 1, the pump housing 2 and the impeller in the pump housing 23, motor 1 Output shaft is connected by shaft coupling with the main shaft 4 of deep well pump and rotated with impeller 3, and wherein motor 1 includes housing 101 and end cap 103, armature spindle and stator winding are installed in the housing 101 of motor 1, it is arranged with sealing ring in the excircle of end cap 103 18, when end cap 103 is arranged on housing 101 by bolt, sealing ring 18 is outer with end cap 103 in the medial wall of housing 101 Swelling between circumference；Therefore, when being aspirated in being immersed in underground water well, the sealing of its motor necessarily will get well deep well pump, Not so, water is penetrated into cannot work the short circuit of the motor for causing in housing.

But the deep well pump is when in use, because end cap is through being bolted to its excircle, in use, armature spindle The vibration for producing is rotated, end cap is produced in the housing and is radially rocked, produced between housing so as to sealing ring is compressed The certain gap of life, now, water is easily deep in housing from the gap, causes the short circuit of motor, therefore this deep well pump to deposit In certain improvements.

Utility model content

In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of deep well pump, with anti-watertight The characteristics of envelope property is good.

Above-mentioned technical purpose of the present utility model technical scheme is that：

A kind of deep well pump, including motor, the pump housing and the impeller in the pump housing, the impeller is by main shaft and the electricity The output shaft of machine is connected, and the motor includes successively housing, ring flange and end cap, and the lower edge of the ring flange offers cone Face, the conical surface is connected on housing to form welding groove between ring flange and housing, and the ring flange is welded along welding groove On housing.

By above-mentioned technical proposal, the conical surface is connected to the upper edge of housing, so as to form one between ring flange and housing The welding groove of road annular, by the way that ring flange is welded on housing along welding groove, first, it is ensured that deep water pump appearance is without hair Thorn, prevents scratching fingers during use；Secondly, welding manner, good sealing effect and between the two connectivity are stablized, are effectively kept away Exempt from motor ring flange and end cap in running to move radially on housing so that water is entered in housing from the external world and made Into the short circuit of motor, to improve the service life of the deep water pump；

And the lower edge of ring flange is entered in housing, the lower part of the conical surface is located in housing the top for being connected to housing Edge, so as in welding, ring flange is not susceptible to displacement；Now, between the axle center of the ring flange being welded and the axle center of housing It is in concentric setting, the effect that motor driven impeller is rotated is more preferable.

Preferably, also it is provided with rubber in the cannelure including bolt and the cannelure located at ring flange upper disk surface Pad, the bolt is arranged in respectively end cap, rubber sheet gasket and its end thread and is connected on ring flange.

By above-mentioned technical proposal, the end cap being bolted on ring flange will be between ring flange and end cap Rubber sheet gasket by swelling, so as to effectively improve the sealing between end cap and ring flange, be prevented effectively from water and ooze between the two Enter into thoroughly in housing；And positioned at the sealing of both end faces, when ring flange and end cap are produced and radially rocked, be not easy to so that Rubber sheet gasket deforms and causes to produce gap between the two.

Preferably, the rubber sheet gasket is circumferentially with annular rib, the annular rib and rubber on the surface of cannelure It is in concentric setting between pad.

By above-mentioned technical proposal, the setting of annular rib, first, the connection that improve between rubber sheet gasket and cannelure is tight Close property, it is to avoid the vibration that motor operation is produced so that rubber sheet gasket produces slip；Secondly, annular rib causes rubber sheet gasket and ring One rib is formed between shape groove, siphon phenomenon of osmosis occurs on rubber sheet gasket to avoid water.

Preferably, lightening grooves are offered in the lower card of the ring flange.

By above-mentioned technical proposal, lightening grooves not only reduce the weight of ring flange, and reduce the cost of enterprise Go out.

Preferably, the medial wall of the lightening grooves is provided with some bosses, and some bosses are along ring flange circumference Equidistantly distributed.

By above-mentioned technical proposal, when ring flange is pressed in housing, ring flange stress will be extruded, by adding The setting of strong block, will be attached, to effectively increase the bending resistance of ring flange between the side wall and the diapire of ring flange of ring flange Folding ability.

Description of the drawings

Fig. 1 is the structural representation of background technology middle-deep well pump；

Fig. 2 is the front view of embodiment；

Fig. 3 is the enlarged diagram in A portions in Fig. 2；

Fig. 4 is the first exploded perspective view of embodiment；

Fig. 5 is the enlarged diagram in B portions in Fig. 4；

Fig. 6 is the second exploded perspective view of embodiment；

Fig. 7 is the circuit diagram of humidity detector and alarming device；

Fig. 8 is the circuit theory diagrams of humidity sensor.

Reference：1st, motor；101st, housing；102nd, ring flange；103rd, end cap；2nd, the pump housing；3rd, impeller；4th, main shaft；5、 The conical surface；6th, welding groove；7th, cannelure；8th, rubber sheet gasket；9th, bolt；10th, annular rib；11st, lightening grooves；12nd, boss；13rd, enter The mouth of a river；14th, armature spindle；15th, stator winding；16th, humidity detector；161st, humidity sensor；162nd, comparing section；17th, water outlet Mouthful；18th, sealing ring；19th, alarming device；20th, electric wire passes through groove.

Specific embodiment

This utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment one, with reference to shown in Fig. 2 and Fig. 4：

A kind of deep well pump, including motor 1, the pump housing 2 and the impeller in the pump housing 23, motor 1 is arranged on deep well pump Bottom, the pump housing 2 and impeller 3 are arranged on the top of the deep well pump, water inlet 13 are provided between motor 1 and the pump housing 2, in the pump housing 2 top is provided with outlet 17, and impeller 3 is connected by main shaft 4 with the output shaft of the motor 1.

Start motor 1, the impeller 3 of motor 1 rotates, water from water inlet 13 Jing after the acceleration of more piece impeller 3 from outlet 17 Flow out at a high speed.

With reference to shown in Fig. 3 and Fig. 5, motor 1 includes successively housing 101, ring flange 102 and end cap 103, and housing 101 is arranged In the bottom of the deep well pump, housing 101 is in hollow structure, and in housing 101 armature spindle 14 and stator winding 15, rotor are provided with Output shaft of the axle 14 as motor 1；The conical surface 5 is offered in the lower edge of ring flange 102, when the deep well pump is vertically placed, the conical surface 5 Angle of inclination between horizontal plane is between 45 ° to 60 °；So as to when ring flange 102 is fitted together to and enters in housing 101, bore Face 5 will be connected to the upper edge of housing 101, to form welding groove 6 in the upper edge of the lower edge of ring flange 102 and housing 101, Between 2 ~ 4mm, groove width is between 2 ~ 3mm for the depth of welding groove 6；When the ring flange 102 is installed, staff will be by weldering Rifle is welded on ring flange 102 on housing 101 along welding groove 6.

Wherein, the center of ring flange 102 has the axis hole passed through for armature spindle 14, opens up in the upper disk surface of ring flange 102 There is cannelure 7, the groove depth of cannelure 7 is provided with rubber sheet gasket 8 between 1 ~ 2mm in cannelure 7；In cannelure 7 and rubber Some screwed holes are circumferentially distributed with pad 8, and relative set live wire passes through groove on ring flange 102 and rubber sheet gasket 8 20, when end cap 103 is installed, first rubber sheet gasket 8 is placed in cannelure 7, end cap 103 is covered on ring flange 102, spiral shell Bolt 9 is arranged in respectively end cap 103, rubber sheet gasket 8 and its end thread and is connected on ring flange 102, by end cap 103 and flange Fasten between disk 102, now, armature spindle 14 will expose from the center of end cap 103.

It is arranged between the end face of end cap 103 and ring flange 102 using rubber sheet gasket 8 and ring flange 102 is welded on housing Mode on 101, is prevented effectively from the vibration that motor 1 is produced in operation so that ring flange 102 and end cap 103 are produced and radially moved It is dynamic so as to produce gap between ring flange 102, end cap 103 and housing 101 so that water is flowed into housing 101 from the gap It is interior, the short circuit of motor 1 is caused, affect the service life of the deep well pump.

As shown in fig. 6, rubber sheet gasket 8 is circumferentially with annular rib 10, annular rib 10 and rubber on the end face of cannelure 7 It is in concentric setting between pad 8, the quantity of the preferred annular rib 10 of the present embodiment is one, and the height of the annular projection of rib 10 exists Between 1 ~ 1.5mm.

The lower card of ring flange 102 is provided with lightening grooves 11, and the medial wall of lightening grooves 11 is provided with some bosses 12, if Along the circumferential equidistantly distributed of ring flange 102, the quantity of the preferred boss 12 of this enforcement is four pieces to dry boss 12, and boss 12 It is oppositely arranged with screwed hole, so as to coordinate lightening grooves 11 to use, not only reduces the weight of ring flange 102, controls enterprise Expenditure cost, controls the use of raw material, more energy-conserving and environment-protective, and effectively increases the bend resistance ability of ring flange 102.

Embodiment two：On the basis of based on embodiment one, with reference to shown in Fig. 7 and Fig. 8, also include：

Humidity detector 16, it is arranged in housing 101, for detecting the humidity in housing 101, to export Humidity Detection Signal；Alarming device 19, it is coupled to humidity detector 16 to receive Humidity Detection signal, and in response to Humidity Detection signal To realize warning.

Humidity detector 16 includes：Humidity sensor 161, for detecting the humidity in housing 101 to export humidity inspection Measured value；Comparing section 162, it is coupled to humidity sensor 161 to receive Humidity Detection value, and by Humidity Detection value and default base Quasi- value compares, and exports Humidity Detection signal according to comparative result.

Humidity sensor 161 include humistor RS, agitator, electric bridge, amplifier, bridge rectifier and for agitator and The DC source that amplifier is powered.

The preferred DC source of the present embodiment adopts 9V power supplys.

Humistor RS adopts lithium chloride humistor RS, and humistor RS is arranged in housing 101, and is fitted in flange The lower edge of disk 102（Part in housing 101）, the size of humistor RS between 5 ~ 10mm, small volume, thus The use of motor 1 is not interfered with.

So as in life-time service, water is between ring flange 102 and housing 101 and ring flange 102 and end cap 103 Gap penetration enters fashionable, and water is into contact with humistor RS so that the resistance of humistor RS changes, defeated so as to change its The electric current for going out is to comparing section 162.

According to the characteristic of humistor RS, it can only use alternating current so as to can maintain dynamic equilibrium, thus by unidirectional current Source connects the mode that agitator is that humistor RS is powered.

Comparing section 162 includes：Comparator N1, its in-phase end is coupled to humidity sensor 161；12nd resistance R12, one End is coupled to the end of oppisite phase of comparator N1, its other end ground connection；Rheostat RP1, its one end is coupled to the 12nd resistance R12 On the junction point between comparator N1 end of oppisite phase, its other end ground connection.

Alarming device 19 includes：14th resistance R14, its one end is coupled to the outfan of comparator N1；Second audion Q2, its base stage is coupled to the other end of the 14th resistance R14, its grounded emitter；Warning lamp H1, its one end is coupled to voltage VCC, its other end is coupled to the colelctor electrode of the second audion Q2.

Wherein, humistor RS is arranged in motor 1, agitator, electric bridge, amplifier, bridge rectifier, DC source and police Showing device 19 is arranged at the external world, when the deep well pump is deep under water, humistor RS by electric wire and agitator, electric bridge, Amplifier, bridge rectifier, DC source are connected, and electric wire shares a passage with the electric wire of motor 1.

The course of work：

When humistor RS detects the humidity in housing 101 and changes, the resistance of its own will change, from And the current value Ia of the in-phase end to comparator N1 for exporting changes, when it is more than default reference value, comparator N1 Outfan will export high level Humidity Detection signal to the second audion Q2 base stage, the second audion Q2 conducting, warning Lamp H1 obtains electric, and to warn in staff's motor 1 water is penetrated into.

The above is only exemplary embodiment of the present utility model, not for restriction protection model of the present utility model Enclose, protection domain of the present utility model is determined by appended claim.

Claims (5)

1. a kind of deep well pump, including motor (1), the pump housing (2) and the impeller (3) in the pump housing (2), the impeller (3) is led to Cross main shaft (4) to be connected with the output shaft of the motor (1), it is characterized in that：The motor (1) includes successively housing (101), flange Disk (102) and end cap (103), the lower edge of the ring flange (102) offers the conical surface (5), and the conical surface (5) is connected to housing (101) to form welding groove (6) between ring flange (102) and housing (101) on, the ring flange (102) is along welding groove (6) It is welded on housing (101).

2. deep well pump according to claim 1, is characterized in that：Also include bolt (9) and on ring flange (102) Rubber sheet gasket (8) is provided with the cannelure (7) of card, the cannelure (7), the bolt (9) is arranged in respectively end cap (103), rubber sheet gasket (8) and its end thread is connected on ring flange (102).

3. deep well pump according to claim 2, is characterized in that：The rubber sheet gasket (8) is on the surface of cannelure (7) Annular rib (10) is circumferentially with, is in concentric setting between the annular rib (10) and rubber sheet gasket (8).

4. deep well pump according to claim 1, is characterized in that：Loss of weight is offered in the lower card of the ring flange (102) Groove (11).

5. deep well pump according to claim 4, is characterized in that：The medial wall of the lightening grooves (11) is provided with some reinforcements Block (12), some bosses (12) are along ring flange (102) circumference equidistantly distributed.