JPS58174196A - Pump device for water-supply system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a spiral bong having a motor! A bong for water supply equipment such as heating equipment and irrigation equipment! Regarding equipment.

In such devices, the bond housing and the motor
The flanges extending radially outward of the housing are connected to each other, and the periphery extending radially outward of the separation wall separating the bonding chamber and the motor chamber, and the rotor chamber and stator chamber of the motor. and a radially outwardly extending peripheral edge separating the two from each other and arranged at the aforementioned Franz connection.

Pon! Housing and Motor Whether the housing is made of cast metal or molded grate, there have been some problems with this type of ponder device in the components that connect both the osungs. In known structures, the flanks of the connecting portions of both hakunongs are usually gel-fastened. Therefore, this type of rod has different tensile forces, so pop! Stress was applied to the components within the lid, which caused problems such as, for example, the support shaft digging into the bearing.

In addition, in the known method, in addition to the gel as the actual connecting means, a plurality of 9-socket members had to be provided between the separating wall and the edge of the separating cylinder or between the flanges of the uzing. . Usually, three types of Yakkin materials were used, but they had considerable problems. This is because, due to changes over time, the effectiveness of the flat skin material deteriorates and it no longer performs its function satisfactorily. Father, it is also obvious that the tight connection required by gelt requires quite a lot of parts, which makes the production cost high, and the assembly is also troublesome and time-consuming.

The purpose of the present invention is to create a pop!・Housing and mo 2.7, back 7. . −. :s, mt, % fllJ tD = y
It can be done tightly and easily without using any means such as resin or sealant. An object of the present invention is to provide a novel bonding device which can be bonded without endangering other components of the device.

In order to achieve the above object, K, the present invention! In the device, among the flanges of the bonding unit and the motor unit, and the peripheral edges of the separating wall and the separating tube, at least the flanges of the pump unit and the peripheral edge of the separating tube are mutually connected. Constructed for metal bonding. Such a metallurgical bond is one in which metal parts are joined together, for example by welding or...
・O refers to direct fixation by soldering etc. It is particularly important to tightly and fixedly connect these two parts. I mean, pon! . . . because the housing and the separating tube are necessary to form a tight and pressure-resistant boundary between the inner chamber of the bonding device, which is filled with water as the feed fluid, and its surroundings.

And pop! - By metal-bonding the flange of the no-using and the outer edge of the separation cylinder, the peripheral edge of the separation wall is free, but it is held tightly between the two parts mentioned above. Ru. Also, this dividing wall or also,
Optionally, the flanges of the motor housing can also be connected to the above-mentioned parts together in a circumferential seam manner by welding and soldering at the joining position of the two nozzles.

If it is not desired to form a seam in the motor nozzle, the motor nozzle can be bonded...
It can also be combined with Uzing in a form-locked state. In other words, it falls at the joining position, deforms the shape of the motor... - It is constructed so that it is engaged in a suppressed state with the back part of the flange of the No. 1 Uzongu.

In the I-ring device of the present invention as described above, PON!・
The housing and the separation tube are connected to the cough device and its li#li1.
! 8 and form a pressure-resistant boundary between each other! l Tightly coupled. Here, there is no effect on the armpit device due to changes in the 9-piece insert material over time, etc., because the present invention no longer requires a knocking material or a sealing material.

Therefore, for the same reason, there is no danger that the main shaft in the device will bite into the bearing.

As mentioned above, in the present invention, in addition to the use of glue material etc., there is no need for connecting means such as gel, so the number of parts of the pump device can be considerably reduced. . Furthermore, according to the present invention, compared to the conventional assembly method in which the I-ring housing and the motor housing are connected to each other using gel, it is easier to assemble the I-ring housing and the motor housing on an automatic assembly line. Can assemble the device. Furthermore, assembly and joining of the components to be joined can be easily accomplished by automatic machines.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

The bong of the present invention shown in FIG. The device is used to circulate water in water supply equipment such as heating equipment and irrigation equipment. - Consists of a spiral ponder with a housing 1 and an electric motor with a motor housing 2. This motor is of a wet running type. The rotor 3 rotates within a rotor N4 filled with water.

The support shaft 5 of the motor is supported by a pair of lanoal bearings 7 on both sides of a rotor core 60 fixed thereto. An impeller 9 of I7f is fixed to one end portion (the left end portion in FIG. 1) of the support shaft extending into the pump chamber 8ilIIl.

10 separates the pump chamber 8 from the rotor chamber 4, and the rotor 114 is further separated from the stator 111 by a separation tube 12. Inside the stator chamber 11 is a housing 2.
There is a stator core 11 and a motor winding 14 attached to the motor. Here, the motor is an asynchronous motor with a squirrel cage rotor.

Bon! mentioned above! The structure and operation of the device are the same as those in general, so detailed explanation will be omitted.

In this respect, the same Bon! The device is disclosed, for example, in German Patent Publication Nos. 2,516,575, 2,529,399 and 2
No. 639540 and other publications.

Both unongs 1 and 2, the separation wall 10 and the separation cylinder 12 are
7 run holes 1 m and 2 extending outward in the radial direction are integrally formed in the 0 and 1 housings 1 and 2, which are manufactured by molding a grating such as an iron plate. These flanges 1 m and 2 m are provided at the same gate of each unong at the position of the opposing surfaces where both housings are brought into contact, that is, at the joining position. On the other hand, separation wall 1
0 and the separating tube 12 are likewise provided with a flange-like edge portion I01°12& extending radially outward.

In the embodiment of FIG. 1, the flank 1m and the peripheral edge 12m
are joined together along seam 15 by welding. That is, both portions 1m and 12a are metallically bonded. The peripheral edge 101 of the separating wall is tightly held between the two parts of the flange 11 and the peripheral edge 12, and these parts 1t, 12
* Melt, there is no direct bond.

The two housings 1.1 are connected to each other in a form-fitting manner. That is, the flank 2a of the motor housing 2 is
In the area of the joining position, it extends beyond $1111 and 151 in a good curved state, and pops! - It is configured to engage directly with the back side of the flange 11 of the housing 1. Such a form-locking connection can be achieved very easily. That is, the flange 21 of the tongue 2 is bent in the radial direction and bent and inwardly around the flange 1& and the peripheral edge 12&, which were previously welded together, using an appropriate tool.
All you have to do is press it against the back side of &.

The modified configuration of the joint portion shown in FIG. 2 is roughly the same as the configuration of the joint portion surrounded by the broken line circle shown in FIG.
The difference is that here also the peripheral edge 10& of the separating wall 10 is metallurgically connected together with the flank 1a and the peripheral edge 12a at the weld seam 15. However, the flange 21 of the motor housing 2 is in a form-fitting condition similar to the arrangement of FIG.

In an alternative configuration of the joint according to FIG. 3, at the weld seam 15, all joints
This shows an embodiment in which a+ja+J0a+Jja are integrally joined by welding.

The advantages of this type of joint configuration have already been discussed, but there are still other advantages, such as the ability to connect welded parts in the event of a failure of the sealing device and when it is necessary to inspect or, in some cases, repair it. can be removed relatively easily.

As mentioned above, Bon! When disassembling the device, in the structure shown in FIGS. 1 and 2, the bent Franz 2 pins are first folded back and removed from the retaining part, and then removed from the separating tube 12 together with the stator parts 13 and 14. Remove motor--Uzong 2. Thereafter, the weld seam 16 is removed completely by scraping, thereby - the connection between the housing 1 and the separation tube 12 (FIG. 1) or the connection between the housing 1, the separation wall 10, and the separation tube 12 (see FIG. 1). In the structure shown in Fig. 3, all bond parts Ja, 2a+717atJ
2 m is removed in one working step by cutting the weld seam 15).

For example, the cutting work for S* grade 15 is performed as follows. In other words, pop! Pump of the device...Uzong 2 is installed on a lathe, and the tool t-applies to the welding tangent 15 to scrape it off. Here, in order to easily accommodate the tool at the welded seam part, f# seam is Franz lh, 2m
It is provided along the outer free end of the peripheral edge 10m, 12*, and the joint position is higher than the adjacent cylindrical part or the part along the axial direction of the pump housing 1 and the motor housing 2. That is, it is desirable to provide it in a protruding state at a larger distance from the longitudinal axis i[16 in the radial direction.

In addition, in the above-mentioned embodiment, the case where metal joining is performed by welding was explained, but the same applies to the case of soldering.
- The soldered seam is provided in the same position as the previously described welded seam.

Also, in the present invention, PON! - Housing and motor -- Since the housing is manufactured by molding a grate such as an iron plate, the entire pump device can be manufactured easily and with low friction.

In addition, since the connection is made by welding and soldering, no particular problems arise.

However, it is also possible to construct the motor...9 housing with a molded material by injection molding, the pump housing with a molded grate, and the pump housing's Franz, for example, on the same edge of the separation cylinder. It is fixed by welding to the part, and the 7 runno of both... Unong is fixed to the special component, such as the clan!
It may be constructed so that they are connected to each other by means of members. In this way, ten thousand pieces of molded grates made of steel plates can be connected to each other.
・It is also possible in cases where it is a problem to connect the Unong to the other Unong made of injection molded material by welding or gluing.

[Brief explanation of drawings]

Figure 1 shows the Bon! of the present invention! FIGS. 2 and 3 are longitudinal sectional views showing the entire device, and are enlarged partial views showing other modified configurations of the connecting portions indicated by broken-line circles in FIG. 1, respectively. 1...Motor housing, 2...Pump length, J a + 2 m...Flange, 10...
・Separation wall, 12 minutes m$1. J (7m, 72a・-
・Marine edge, 15...#l joint.

Claims (1)

[Claims] 1. A pump device for water supply equipment, which is equipped with a whirlpool bonder having a motor, the device being a pump! a housing (1) and a motor housing (2), each having a radially outwardly extending Franz (1a + J & ) connected to each other, and a ponder chamber (1a + J&); 8) and the motor chamber (4, 11), the radially outwardly extending peripheral edge (10*) of the separation wall (10) separates the rotor chamber (4) and the stator chamber (11) of the motor.
Nine radially outwardly extending peripheral edges (72 m) of the separation 1m11 (1!) separating the 1) and 1) are arranged between the 7 runs and the periphery, at least the Bon! --- A pump device in which the flange (1) of the unong (1) and the peripheral edge (12 &) of the separation tube are metallically bonded to each other. 2. The pump device according to claim 1, wherein the metal connection is made by welding or soldering. 3. The welding or soldering seam (1j) is formed along the outer free end of the seven runs or peripheral edges that are joined together by the seam.
- Claim t8, which is located at a position further away in the radial direction from the longitudinal axis of the device <16)K than the adjacent regions of the housing (1) and the motor housing (2). The pump device according to item 1 or 2. 411I motor housing (2) is the same as the above-mentioned PON!・The motor housing is connected to the housing CI) in a form-fitting state, and the motor housing is placed in the joining position and is inserted into the bond housing (1) by passing it over the contact or soldering joint (15).
The pump device according to any one of claims 1 to 3, which engages with the back surface of the runno (1a).