A kind of centrifugal pump movable flange structure
Technical field
The present invention relates to centrifugal pump technical field, especially relate to a kind of centrifugal pump movable flange structure.
Background technique
Horizontal end suction centrifugal pump be widely used in supercharging, industry, water system, air conditioner water circulation, heating, fire-fighting system, herding irrigate, change material can be used for the numerous areas such as sewage and waste water process, chemical industry and desalination of sea water.World's every country is all in use, and due to the Flange Standard disunity that each department are connected with pipeline, linkage structure is had no idea unified, complicated operation.
Existing centrifugal pump flange mostly adopts snap ring to position, and such structure installment inconvenience, stability is poor, and cost is high.
Chinese patent literature (the day for announcing: on September 10th, 2014, notification number: CN203823294U) disclose a kind of loose flange joint, comprise upper flange, interior tube head and rotary flange, the endoporus of described upper flange and the inner chamber of described interior tube head are conducted, described rotary flange is sheathed on outside described interior tube head, and described rotary flange is fixedly connected with described upper flange; Fitting surface between described upper flange and described interior tube head is provided with two seal grooves, seal ring is provided with in described seal groove, described loose flange joint is also provided with inlet opening, described fitting surface between one end conducting to two described seal groove of described inlet opening, the other end conducting is to described loose flange connector exterior.This loose flange joint structure is compact, reasonable in design, can realize the mating operation of pipeline quickly and easily, and have sealing self-checking function.
Chinese patent literature (the day for announcing: on July 11st, 2012, notification number: CN202326352U) disclose a kind of movable water pump flange, comprise the pump housing and flange body, described flange body is socketed on the pump housing, surface of contact between the described pump housing and flange body is provided with annular groove, be provided with snap ring in described annular groove, described flange body adopts carbon steel to make, and described snap ring adopts elastic material to make.
What technique scheme solved is flange bolt hole and pipeline flange when connecting bolt hole align difficult problem.
Summary of the invention
The object of the invention is can not be suitable for different regions Flange Standard installation requirement to solve existing pump, thus the installation caused is inconvenient, adopts snap ring spacing, poor stability, high in cost of production problem, and provide a kind of structure simple, easy for installation, the centrifugal pump movable flange structure that steadiness is good.
The present invention realizes the technological scheme that its technical purpose adopts: a kind of centrifugal pump movable flange structure, comprise loose flange body and flange water inlet-outlet segment, described loose flange body and flange water inlet-outlet segment level are socketed is installed and is located by rotary clamping, the endoporus of described loose flange body is circumferentially evenly equipped with flange draw-in groove and flange latch, described flange draw-in groove and flange latch interval are arranged, the excircle of described flange water inlet-outlet segment is evenly equipped with water inlet-outlet segment latch, and described water inlet-outlet segment latch coordinates clamping with flange latch end face.This centrifugal pump loose flange, by designing flange and flange water inlet-outlet segment, flange is set to loose flange body, loose flange body is provided with flange draw-in groove and flange latch, and on flange water inlet-outlet segment, be provided with water inlet-outlet segment latch, loose flange body and flange water inlet-outlet segment level are socketed is installed and is located by rotary clamping, when needs are installed, loose flange body is set with on flange water inlet-outlet segment, the flange draw-in groove of loose flange body is to the water inlet-outlet segment latch on alignment flange water inlet-outlet segment, after packing into, loose flange body is rotated to an angle, make the flank of tooth and the flank of tooth clamping of flange latch on loose flange body and water inlet-outlet segment latch, realize location axially, thus reach spacing object.This centrifugal pump movable flange structure, eliminates snap ring spacing, greatly reduces cost, easy for installation, solid and reliable.
As preferably, the flange draw-in groove on described loose flange body corresponds to the water inlet-outlet segment latch level socket on flange water inlet-outlet segment, and loose flange body rotates in a circumferential direction, rear flange latch end face and the clamping of water inlet-outlet segment latch end face axial are located.Such connection orientation type structure is simple, easy to operate, and steadiness is good.When loose flange body being provided with four flange draw-in grooves, four flange latches, loose flange body rotate 45 degree afterwards and the clamping of water inlet-outlet segment latch end face locate, when being provided with three flange draw-in grooves and three flange latches, loose flange body rotate 60 degree afterwards and the clamping of water inlet-outlet segment latch locate.
As preferably, described flange latch and the counterface of water inlet-outlet segment latch are spherical arc surface, and the fitting surface of described flange latch is interior concave ball shape arc surface, and the fitting surface of described water inlet-outlet segment latch is convex spherical arc surface.Fitting surface is arranged to spherical arc surface, and such structure can eliminate the localized stress problems of too that bolt clipping forcee inequality causes.
As preferably, the tooth tip diameter of described flange latch and the major diameter fit of flange water inlet-outlet segment are arranged.Such structure conveniently installs location.
As preferably, described water inlet-outlet segment latch vertically to arrange length consistent with loose flange body and flange water inlet-outlet segment position location.The length of water inlet-outlet segment latch is consistent with loose flange and flange water inlet-outlet segment position location, ensures that loose flange body and flange water inlet-outlet segment can be in place like this, coordinates closely.
As preferably, water inlet-outlet segment latch and flange draw-in groove and flange latch respectively one_to_one corresponding are arranged.Such structure is convenient installs, and can ensure the clamping after installing.
As preferably, loose flange body is evenly equipped with at least three flange draw-in grooves, is correspondingly provided with at least three flange latches, flange water inlet-outlet segment coordinates flange latch be provided with at least three water inlet-outlet segment latches.Flange draw-in groove on loose flange body is at least provided with three, like this can be guaranteed spacing reliable and stable.
The invention has the beneficial effects as follows: this centrifugal pump movable flange structure, adopt spherical arc surface clamping axially locating, eliminate snap ring spacing, this flange can adapt to the installation needs of different regions Flange Standard, greatly reduces cost, easy for installation, solid and reliable.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of centrifugal pump movable flange structure of the present invention;
Fig. 2 is loose flange body of the present invention and flange water inlet-outlet segment a kind of structural representation when installing;
Fig. 3 is that loose flange of the present invention and flange water inlet-outlet segment rotate a kind of structural representation after locating;
Fig. 4 is A place enlarged view in Fig. 1;
In figure: 1, loose flange body, 2, flange water inlet-outlet segment, 3, flange draw-in groove, 4, flange latch, 5, water inlet-outlet segment latch.
Embodiment
Also by reference to the accompanying drawings technological scheme of the present invention is described in further detail below by specific embodiment.
Embodiment 1:
In the embodiment shown in fig. 1, a kind of centrifugal pump movable flange structure, comprise loose flange body 1 and flange water inlet-outlet segment 2, loose flange body 1 and flange water inlet-outlet segment 2 level are socketed is installed and is located by rotary clamping, the endoporus of loose flange body 1 is circumferentially evenly equipped with flange draw-in groove 3 and flange latch 4, flange draw-in groove 3 and flange latch 4 interval are arranged, and the excircle of flange water inlet-outlet segment 2 are evenly equipped with water inlet-outlet segment latch 5, and water inlet-outlet segment latch 5 coordinates clamping with flange latch 4 end face.Flange latch 4 is spherical arc surface with the counterface of water inlet-outlet segment latch 5, and the fitting surface of flange latch 4 is interior concave ball shape arc surface, and the fitting surface of water inlet-outlet segment latch 5 is convex spherical arc surface (see figure 4).The tooth tip diameter of flange latch 4 and the major diameter fit of flange water inlet-outlet segment 2 are arranged.
Flange draw-in groove on loose flange body 13 corresponds to the water inlet-outlet segment latch 5 level socket on flange water inlet-outlet segment 2, and rotates flange latch 4 end face of 45 degree by loose flange body 1 and the clamping of water inlet-outlet segment latch 5 end face axial is located.
Water inlet-outlet segment latch 5 vertically to arrange length consistent with loose flange body 1 and flange water inlet-outlet segment 2 position location.Water inlet-outlet segment latch 5 is arranged with flange draw-in groove 3 and flange latch 4 difference one_to_one corresponding.
Loose flange body 1 is evenly equipped with at least three flange draw-in grooves 3, is correspondingly provided with at least three flange latches 4, flange water inlet-outlet segment 2 coordinates flange latch 4 be provided with at least three water inlet-outlet segment latches 5.In the present embodiment, loose flange body 1 is evenly equipped with four flange draw-in grooves 3, is correspondingly provided with four flange latches 4, flange water inlet-outlet segment coordinates flange latch 4 be provided with four water inlet-outlet segment latches 5.When loose flange body 1 being provided with four flange draw-in grooves, 3, four flange latches 4, locate with the clamping of water inlet-outlet segment latch 5 end face after loose flange body 1 rotates 45 degree, when being provided with three flange draw-in grooves 3 and three flange latches 4, locate with water inlet-outlet segment latch 5 clamping after loose flange body 1 rotates 60 degree.The angle of swing of loose flange body 1 sets concrete angle of swing according to the magnitude setting of flange draw-in groove and flange latch.
This centrifugal pump movable flange structure, comprise: loose flange body 1, flange water inlet-outlet segment 2, by arranging flange draw-in groove 3 and flange latch 4 on loose flange book 1, on flange water inlet-outlet segment 2, correspondence is provided with water inlet-outlet segment latch 5, after loose flange body 1 and flange water inlet-outlet segment 2 are socketed, loose flange body 1 is rotated 45 °, the interior concave ball shape arc surface of flange latch 4 is matched with the convex spherical arc surface of water inlet-outlet segment latch 5, reach spacing fixing object, thus eliminate snap ring.
Concrete installation process is as follows: the water inlet-outlet segment latch 5 on the flange draw-in groove 3 alignment flange water inlet-outlet segment 2 on loose flange body 1, loose flange body 1 is set with (see figure 2) on flange water inlet-outlet segment 2, after suit puts in place, loose flange body 1 is rotated 45 °, make the water inlet-outlet segment latch 5 on the flange latch 4 alignment flange water inlet-outlet segment 2 on loose flange body 1, the end face of two teeth and end face are connected together (see figure 3), thus by flange latch 4 and water inlet-outlet segment latch 5 clamping mutually, reach spacing object.This centrifugal pump movable flange structure, eliminates snap ring, is undertaken spacing, greatly reduce cost by the structure of loose flange and flange water inlet-outlet segment self, and easy for installation, spacing solid and reliable.