CN2061622U

CN2061622U - Biaxial water pump

Info

Publication number: CN2061622U
Application number: CN 89219084
Authority: CN
Inventors: 孙永才
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-12-26
Filing date: 1989-12-26
Publication date: 1990-09-05

Abstract

The utility model relates to a biaxial water pump, and is characterized in that multi-stage water wheel are respectively arranged on two roots of shafts which are arranged on a same level and are mutually arranged in parallel in a snail shell type pump shell. The two roots of the shafts are respectively dragged by two sets of low-speed motors. Because the water wheels on the two roots of the shafts are mutually staggered in parallel to make the water outlet of the previous stage water wheel and the water inlet of the latter stage water wheel are directly connected. And in a snail passage, a flow passage is shortest, and resistance is minimum. The pump shell is of an open snail shell structure in a level, and is a dual-purpose high-lift water pump for clear and dirty water.

Description

Biaxial water pump

The utility model relates to a kind of drainage equipment, especially a kind of high-lift clear, dual-purpose water pump of sewage, and it is a kind of equipment of draining earthward that is specially adapted under the mine.

At present, drainage equipment under the general mine is to adopt the vertical fragmentation formula to have the multistage centrifugal water pump of Balance disc substantially, facts have proved that there are a series of problems in this water pump, is not suitable for sewer, and efficient is low.High-lift pump adopts the two poles of the earth pot motor to drag more, and power reaches 1000kw, and its noise can be up to 102～106dB(A), and suction lift is low, and only about 4 meters, and water pump bearing need be established special lubricated and cooling equipment.Introduced a kind of multistage pump that the external reflux runner is arranged of spiral shell shell-type as U.S. AJ Oleg Stepanov at the P133 of " centrifugal pump and axial-flow pump ", its maximum progression are 8 grades, but make the model of 8 grades of pumps and the work of core is very complicated.Runner is turned or distortion, all can hinder velocity head is converted into pressure economically.This book P134 introduces, for small-sized spiral shell shell-type multistage pump, often the backflow runner as the part of pump housing casting form as a kind of simplification on the pump housing, its efficient will reduce by 2% or more after this simplifies.

The purpose of this utility model is to design the high novel biaxial water pump of a kind of efficient for overcoming above-mentioned deficiency, be characterized in multistage water wheels are divided in one by in the same horizontal plane in the spiral shell shell-type pump case dimerous up and down and on two axles that are parallel to each other, two axles are dragged by slowspeed machine respectively, water wheels on its two axles are parallel to each other and are staggeredly arranged, make the water outlet of previous stage water wheels become as a whole with back one-level water wheels water inlet, and in a spiral shell road, make runner the shortest, resistance is little, make velocity head can be converted into pressure better, so this twin shaft pump efficiency can be up to 70%～80%, this twin shaft pump not only progression can be above 8 grades, and the backflow runner is divided into two kinds of patterns: the inter-stage runner is that the water outlet of upper level and the water inlet of subordinate directly are connected into one in housing, make the resistance minimum, than general scroll casing type pump hydraulic efficiency height, the external reflux runner, artificially water wheels are divided into several groups, outside runner number is N=n-1, when water wheels being divided into two groups, then outside runner is N=2-1=1, the simplified manufacturing process of Biaxial water pump like this, and kept the self balancing characteristics of spiral shell shell-type water pump axial force.So the utility model is a kind of comparatively ideal high-lift pump.

Description of drawings:

Accompanying drawing 1 is assembling external form figure of the present utility model.

Accompanying drawing 2 is front views of the present utility model.

Accompanying drawing 3 is cut-away views of the present utility model.

Accompanying drawing 4 is that C of the present utility model is to view.

Accompanying drawing 5 is A-A sectional drawings of the present utility model.

Accompanying drawing 6 is B-B sectional drawings of the present utility model.

Accompanying drawing 7 is rotor erection drawings of the present utility model.

Accompanying drawing 8 is fundamental diagrams of the present utility model.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail, shown in accompanying drawing 2 and accompanying drawing 3, it by following pump case (1), go up between pump case (2), external reflux pipeline (3), axle (4), bearing (5), water holding ring (6), packing gland (7), choma (8), water wheels (9), water wheels between stuffing box gland (10), water wheels distance cover (11), intermediate seal cover (12), intermediate distance cover (13), major axis cover (14), locknut (15) and blind axle side water ring (16) and O RunddichtringO etc. and form; Wherein descending pump case (1) is a thin-wall case, the axle that can hold two same levels and placement parallel to each other is arranged in the housing and be contained in the semicircle type groove of water wheels on the axle etc., be staggeredly arranged between two row's grooves, and there is passage to make the water outlet Luo Dao of previous stage water wheels and the water inlet Luo Dao of back one-level water wheels be linked to be an integral cavity, as shown in Figure 3, first order water outlet communicates at the C place with second level water inlet runner, make inter-stage series connection runner distance the shortest, the resistance minimum, on its channel portion face and on the middle same plane a plurality of screw holes are arranged, a Stamping Steel Ribbon groove is arranged in the periphery hole inboard, housing two respectively casts out outward extending two bearing support blocks, four lower margin bearings are arranged at its bottom, they respectively have an anchor (bolt) hole, link to each other with gusset between bearing and outward extending bearing support block, being positioned at the pump case outer bottom has the reinforcement gusset of two parallel longitudinals, forward, central part is cast with the afterbody outlet pipe and the garden type flange plate of protrusion, right back face is cast with outer first order intake pipe and the flange plate of outstanding housing, hole, a plurality of garden is all arranged, so that be connected on two flange plate with exterior line; Last pump case (2) also is a thin-wall case, with the corresponding site of lower casing the groove and the passage that can hold diaxon and water wheels etc. arranged also, and two row's grooves also are staggeredly arranged, it and following pump case constitute the complete spiral shell shell-type passage of back shaft and water wheels at different levels jointly, and adjacent two inter-stages are communicated with, be the first order and the second level, the second level and the third level, the third level and the fourth stage ... between be communicated with, as accompanying

drawing

3,4,5, shown in 6, on the relevant position of the up and down, channel portion plane of housing shell sealed groove, same trench is arranged also, there are a plurality of screw holes at flange plane and the corresponding position of housing, same horizontal mid-plane up and down, so that pump case compresses with the screw connection up and down, its upper left quarter has the water outlet D of first group of water wheels and the water intake E of second group of water wheels, connecting an external reflux pipeline (3) between the two, show that as Fig. 2 following pump case (1) reaches last pump case (2) and makes by cast iron or Cast Steel, external reflux pipeline (3) is a Gent system bend pipe, axle (4) is the multi-ladder garden axis of a cylinder of making of No. 45 steels, 6 knob keyways equably distribute in the middle part of it, so that it is connected with water wheels etc. with the knob flat key, as shown in Figure 7, there is the shaft shoulder in its left side, the left end head also has a keyway, be convenient to by the dress shaft coupling, there is one section outside thread on axle the right; Bearing (5) comprises cartridge housing and bearing gland and bearing, cartridge housing is the garden that can hold a bearing cover, with on the axle matching hole face seal groove is arranged, in oil felt pad is housed, bearing gland is a common gland, the seal groove of endoporus also is equipped with oil felt pad, it is connected by screw with cartridge housing, bearing is an angular contact ball bearing, water holding ring (6) is a garden ring, garden, outer ring ring diameter is bigger, center hole is identical with axle corresponding position diameter, for preventing to go here and there water inflow bearing, in endoporus, be provided with seal groove, O type rubber seal is housed in the groove, packing gland (7) is a hollow end cap, internal diameter is identical with the diameter of axle corresponding site, screw hole is arranged on the cover flange, choma (8) is a garden ring, its outer garden side face has a circle groove, and symmetry respectively has one to be used for by the garden nest that sets a pin about the groove side, being positioned at up and down, the relevant position of pump case also has with garden nest directly, so that with pin with choma and the location of pump case up and down, the outer rim of its internal diameter and water wheels inlet has certain interval, gap value is 0.25mm, choma should install on the axle with water wheels, water wheels (9) are by front shroud, back shroud and a plurality of blade are formed, front and rear cover plate is curvilinerar figure, they and a plurality of curved vane cast solid, it is a kind of garden column type blade, identical with the water wheels structure of general Centrifugal water pump, be cast iron or Cast Steel, stuffing box gland between water wheels (10) and intermediate seal cover (12) are tubulose garden ring, outer surface all has the bipassage ring connected in star, so that O shape rubber seal is installed, prevent to go here and there water, symmetry respectively has a pin garden nest about on the outer garden face between the twice groove, the effect with choma on identical, make choma and each seal ring be stuck in the corresponding recesses of lower casing by pin, its internal diameter cooperates with corresponding axle sleeve external diameter is movable mutually, distance cover (11) and intermediate distance cover (13) and major axis cover (14) are tubulose garden ring between water wheels, internal diameter is identical with the shaft diameter of the corresponding site of its installation, locknut (15) is a garden nut, be used for the part in addition on the lock shaft, blind axle side water ring (16) is identical with the water holding ring structure.

For guaranteeing the distance between each water wheels; distance cover (11) and intermediate distance cover (13) are housed on the axle between water wheels; each all fuses with key and axle apart from cover is the same with water wheels; with anti-loosening; stuffing box gland (10) and (12) are equipped with in outside at the distance cover; major axis cover (14) is the axle sleeve of rightmost that makes water wheels location and protection axle, and locknut is to be used for compressing by axle sleeve the garden nut of each water wheels, and packing gland is used for compressing packing.

Earlier O type rubber seal is installed to choma respectively, in the groove that stuffing box gland and intermediate seal overlap between water wheels and the endoporus seal groove of water holding ring, choma and water wheels are installed to a left side together, as shown in Figure 7, make the left side of water wheels be close to the shaft shoulder, put into distance cover between water wheels more successively, seal ring, water wheels, the intermediate distance cover, intermediate seal circle etc., make three the water wheels directions in the left side identical, and install in the other direction apart from stuffing box gland between cover and water wheels between three water wheels in the right and water wheels, each water wheels and axle sleeve all are connected with the knob flat key with axle, its the right refills the major axis cover, the packing gland of packing at axle two, after the adjustment, compress with anti-loosening with two locknuts with the right side of major axis cover, load onto water holding ring respectively at axle two again, blind axle side water holding ring and bearing, constitute rotor, the corresponding site of rotor around on packing, at last two identical rotors are installed to down respectively in the groove of pump case, be positioned at down with pin in the perimeter trench on the junction plane of pump case and put Stamping Steel Ribbon, or on junction plane, add the very thin sealing gasket of one deck, to go up and install after pump case is located by pin, to up and down with a plurality of screws, the pump case connection compresses, inter-stage and pump chamber are well sealed external energy, bearing is fastening on the pump case two end axles supporting base with the blue dish of card, adjust packing and push down the back with gland and gland is fixed, by shaft coupling axle is connected with motor shaft with key in a side shaft head at last and get final product with screw.

On two axles the working principle of water wheels as shown in Figure 8, after water pump starts, S ₁The 1st grade of water wheels on the axle suck water in the water wheels under centrifugal action, and water is transported to S ₂The 2nd grade of water wheels inlet on the axle, arrange to 3rd level the second level ... the 6th grade of water that ejects enters the 7th grade of water wheels through exterior line G ... after the 12nd grade of water wheels are discharged the pump housing to outer water tube.When being the bilateral suction as the first order, S ₁Water wheels on the axle are odd number, when the first order is one-sided suction, and S ₁Water wheels on the axle are even number.Present embodiment is one-sided water inlet.

Because this Biaxial water pump drags respectively with two slowspeed machines, two axles do not have the mechanically contact in the transmission, so to the startup of two axles with stop order and do not have technical requirement, as if S ₁Axle can start earlier, then can reduce the resistance before the first order water wheels inlet when starting.

The utility model has following advantages compared with the prior art: twin shaft spiral shell shell-type centrifugal water pump is a kind of than any multistage pump fairly simple high-lift pump (300～800m) all, its structural shape is that multistage water wheels are divided on two axles, so parts are few in addition for it, the external reflux pipeline is few, make the resistance minimum, because of Biaxial water pump axial force Equilibrium, do not need balancing frame again, thereby efficient is up to 70～80%, and easy to maintenance; Biaxial water pump system adopts two than Xiao Rong The slow-speed of revolution (1450rpm) motor run of amount, so its noise is lower, safe and reliable to operation.

Claims

1, a kind of Biaxial water pump, it mainly by following pump case (1), go up between pump case (2), external reflux pipeline (3), axle (4), bearing (5), water holding ring (6), packing gland (7), choma (8), water wheels (9), water wheels between stuffing box gland (10), water wheels distance cover (11), intermediate seal cover (12), intermediate distance cover (13), major axis cover (14), locknut (15), blind axle side water ring (16) etc. and form; Its axis (4) is a multi-ladder garden axis of a cylinder, 6 the knob keyways that distribute equably in the middle part of it, and there is a shaft shoulder left side, and the left end head also has a keyway, and there is one section outside thread on axle the right; Bearing (5) comprises bearing and cartridge housing and bearing gland, cartridge housing is a garden jacket that can hold bearing, on the hole face that cooperates with axle seal groove is arranged, bearing gland is common gland, endoporus also has seal groove, it is connected with screw with cartridge housing, bearing is a radial thrust bearing, water holding ring (6) is a garden ring, garden, outer ring ring diameter is bigger, center hole is identical with shaft diameter, establish O type seal groove in the endoporus, packing gland (7) is a hollow end cap, upward the corresponding site diameter is identical with axle for internal diameter, a plurality of screw holes are arranged on the cover flange, choma (8) is a garden ring, outer garden face has a circle groove, symmetry respectively has a garden nest about the groove side, the outer rim of its internal diameter and water wheels inlet leaves the gap, water wheels (9) are by front shroud, back shroud and a plurality of blade are formed, front and rear cover plate is curvilinerar figure, it and a plurality of curved vane cast solid, identical with common centrifugal water wheels structure, stuffing box gland between water wheels (10), intermediate seal cover (12) is tubulose garden ring, all there is the bipassage ring connected in star on surface, outer garden, and symmetry respectively has a garden nest about on the outer garden side face between the twice groove, and their internal diameter is identical with its axle sleeve external diameter that matches, distance cover (11) between water wheels, intermediate distance cover (13) and major axis cover (14) are tubulose garden ring, their internal diameter is identical with the diameter of axle of its corresponding installation position, and locknut (15) is a garden nut, and blind axle side water ring (16) is identical with water holding ring; Of the present utility model be characterised in that its down pump case (1) be a thin-wall case, have in the housing and hold two axles and the semicircle type groove that is contained in the water wheels on the axle in same level and placement parallel to each other, be staggeredly arranged between two row's grooves, and there is passage to make the water outlet Luo Dao of previous stage water wheels and the water inlet Luo Dao of back one-level water wheels be linked to be an integral cavity, one circle groove is arranged on its peripheral flange surface, on groove outside and the midplane a plurality of screw holes are arranged, housing two respectively casts out the bearing support block that stretches out, four lower margin bearings are arranged at its bottom, they respectively have a foot screw hole, there is gusset to link to each other between bearing and its outward extending supporting base, being positioned at pump housing outer bottom has the reinforcement gusset of two parallel longitudinals, the middle part of the outer front of housing is cast with the afterbody outlet pipe and the garden type flange plate of protrusion, be cast with in the back and protrude shell outer first order intake pipe and garden type flange plate, hole, a plurality of garden is all arranged on both flange plate; Last pump case (2) also is a thin-wall case, the semicircle type groove and the corresponding passage that can hold two axles (4) and water wheels are also arranged, constitute the complete spiral shell shell-type runner of back shaft and water wheels at different levels jointly with following pump case, its adjacent two inter-stages are communicated, one circle groove is also arranged at the corresponding position of pump case groove, up and down, channel portion plane of housing, flange plane and midplane also have a plurality of screw holes, its upper left quarter has the water outlet D of first group of water wheels and the water intake E of second group of water wheels, connecting an external reflux pipeline (3) between the two, external reflux pipeline (3) is a Gent system bend pipe; In the seal groove of the groove of choma and each stuffing box gland and water holding ring, respectively load onto O type rubber seal, choma (8) and water wheels (9) are being housed near the shaft shoulder right side of axle (4), be equipped with between water wheels apart from overlapping stuffing box gland (10) between (11) and water wheels in the right of water wheels (9), choma (8) and water wheels (9), intermediate distance cover (13) intermediate seal cover (12), the opposite same three groups of water wheels of three groups of water wheels directions of direction and its left side are equipped with on the right at the intermediate distance cover, major axis cover (14) is equipped with on its right, packing and packing gland are equipped with in its outside, its right-hand member has been tightened two round nuts, and axle (4) all is fixed with the round end flat key with each water wheels and apart from inner room; Blind axle side water ring (16) and bearing (5) are equipped with in round nut the right, and packing, packing gland, water holding ring (6) and bearing (5) also are equipped with in shaft shoulder left side, constitute rotor; In two row's grooves of following pump case (1), two identical rotors are housed, in the corresponding grooves of each choma and stuffing box gland and following pump case, the location pin is housed, in the channel portion groove of the junction plane of pump case up and down, Stamping Steel Ribbon is housed, or on its junction plane, add the very thin sealing gasket of one deck, above the pump case pump case on (2) is being housed down, be fixed with under a plurality of screws in the joint of pump case up and down and be connected with a plurality of screws between pump case end face and packing gland, the card orchid that tightens up bearing is housed on the bearing support block at pump case two ends.

2, according to the said Biaxial water pump of claim 1, pump case (1) is to be made by cast iron or cast steel to it is characterized in that reaching down by said upward pump case (2).

3,, it is characterized in that the gap value of the outer rim of its endoporus of said choma (8) and water wheels inlet is 0.25mm according to the said Biaxial water pump of claim 1.

4,, it is characterized in that said axle (4) made by No. 45 steel according to the said Biaxial water pump of claim 1.