JP2001082397A - Fixing structure of circulation pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the fixing structure of a circulation pump easily and reliably fixed at a bottom plate, of which the apparatus body frame for a boiler, etc., consists, even in the case a circulation pump has no special fixing means. SOLUTION: The fixing structure of a circulation pump is formed such that a circulation pump 2 is fixed at a bottom plate 1. Further, a bottom wall plate 3D and left and right rise wall plates 3F and 3G situated in a rising state on both sides of the bottom plate 3D are provided and a pump support frame 3 securely placed on the bottom plate 1 is provided. The motor housing part 2D of the circulation pump 2 is nipped between the left and right rise wall plates 3F and 3G of the pump support frame 3 and the upper end part of one rise wall plate 3F is brought into contact with the protrusion part 2A of a motor housing part 2D. A pump fixing tool 4 to block movement in the axial direction of the circulation pump in a state to be locked at a part of the pump casing part 2C of the circulation pump 2 and block rotation in the peripheral direction of the circulation pump 2, and block rotation in the peripheral direction of the circulation pump 2 in coordination with one rise wall plate 3F is mounted on the other rise wall plate 3G of the pump support frame 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating pump fixing structure for supplying hot water to an external radiator for use in an oil boiler or the like.

[0002]

2. Description of the Related Art Conventionally, in this type of circulating pump fixing structure, the circulating pump is provided with a boss or a leg as a fixing means, and the circulating pump is circulated through a pump support using these fixing means. The pump was mounted and fixed on a bottom plate constituting a body frame such as a boiler.

[0003] However, among the circulation pumps of commercial products and imported products, the fixing method is not considered, that is, the circulating pump is not provided with a boss or a leg as a fixing means. When a circulating pump not used is used, it is difficult to fix the circulating pump.

[0004] In particular, the circulation pump was even more imported from foreign countries.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above situation. Even a circulating pump having no particular fixing means, a bottom plate constituting a body frame of a boiler or the like can be provided with: It is an object of the present invention to provide a circulating pump fixing structure that can be fixed easily and reliably.

[0006]

In order to solve the above-mentioned problems, according to the present invention, a bottom plate constituting a body frame of a boiler or the like is provided with a projection on a part of a substantially cylindrical motor housing portion. A fixed structure of a circulating pump for fixing the circulating pump in which the portion is formed, comprising a bottom wall plate and left and right standing wall plates provided upright on both sides of the bottom wall plate, on the bottom plate A pump support base to be mounted and fixed is provided. The motor housing portion of the circulating pump is sandwiched between left and right standing wall plates of the pump supporting stand, and an upper end of one standing wall plate abuts on a convex portion of the motor housing portion. And the other vertical wall plate of the pump support stand is engaged with a part of the pump casing of the circulation pump to prevent the circulation pump from moving in the axial direction and cooperates with the one vertical wall plate. To prevent the circulation pump from rotating in the circumferential direction. Characterized in that fitted with pump fixture to.

According to a second aspect of the present invention, in the fixed structure of the circulating pump according to the first aspect, the motor housing portion of the circulating pump is mounted substantially at the center of the bottom wall plate of the pump support base. A raised portion to be placed is formed.

According to the third aspect of the present invention, in the circulating pump fixing structure according to the first aspect, the bottom wall plate of the pump support base has a portion projecting outside a motor housing portion of the circulating pump. The protruding portion is provided with a hole through which a fixing screw is inserted.

According to a fourth aspect of the present invention, in the fixing structure of the circulating pump according to the first aspect, the pump fixture has a fixing vertical piece and a fixing horizontal piece that are orthogonal to each other,
It is characterized in that each of the fixing piece and the fixed horizontal piece is provided with a groove in which a part of the pump casing of the circulating pump is engaged.

According to a fifth aspect of the present invention, in the fixing structure of the circulating pump according to the first aspect, the pump fixture has a fixing vertical piece and a fixing horizontal piece that are orthogonal to each other,
It is characterized in that a hanging piece abutting on the end face of the motor housing of the circulating pump is bent at an end of the fixing horizontal piece.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1 to 4, reference numeral 1 denotes a bottom plate constituting a body frame such as a boiler, 2 denotes a canned pump (circulation pump), 3 denotes a pump support, and 4 denotes a pump fixture.

Bottom plate 1 that constitutes the body frame of the boiler or the like
A plurality of holes 1A, 1A for mounting and fixing the pump support base 3 on the bottom plate 1 with fixing screws 6, 6, are formed in appropriate places.

The can pump 2 is used for circulating and supplying circulating water heated by a heat exchanger (not shown) to an external radiator (not shown) such as a floor heating panel. By using, the pump operation noise can be reduced.

Further, since the canned pump 2 is of a type in which an impeller (both not shown) is directly connected to a rotating shaft of a motor protruding into a pump casing portion 2C and rotated, a motor shaft and a bearing (FIG. (Not shown) is in contact with the circulating water, and if the boiler or the like is not used for a long period of time, the motor is often locked due to the adhesion of scale to the motor shaft or the generation of rust. Therefore, the end surface 2B of the motor housing portion 2D of the canned pump 2 has
A motor lock release unit 2E is provided.

The canned pump 2 comprises a substantially cylindrical motor housing portion 2D and a pump casing portion 2C, and the pump casing portion 2C protrudes outward from the motor housing portion 2D in the circumferential direction.
Furthermore, this canned pump 2 has an electric component box 2F for changing the pump capacity and connecting lead wires and the like.
A projection 2A having a rectangular shape in a plan view for fixing the electrical component box 2F to the motor housing 2D is provided in a part of the motor housing 2D.

As shown in FIGS. 1 and 2, the pump support base 3 has a raised portion 3A in which the motor housing portion 2D of the canned pump 2 is mounted substantially at the center, and the pump support base 3 is formed by the motor housing portion 2D. A bottom wall plate 3D provided with holes 3B, 3B through which fixing screws 6, 6 are inserted at portions protruding outward, and a motor housing of the canned pump 2 provided on both sides of the bottom wall plate 3D. Part 2
The left and right standing wall plates 3F and 3G each having a rectangular shape that sandwiches D.

The bottom wall plate 3D and the left and right standing wall plates 3F, 3G
Is formed by bending a single metal plate into a substantially U-shape, and the inner dimension L between the left and right standing wall plates 3F, 3G is slightly smaller than the outer diameter D of the motor housing portion 2D of the canned pump 2. Is set to large.

Further, at the upper end of the right standing wall plate 3G,
A fixing piece 3E bent outward is provided, and the fixing piece 3E has a hole 3 through which the bolt 5 is inserted.
C is provided. A hole 4 is provided in the fixing piece 3E.
The mounting piece 4B of the below-described pump fixing tool 4 provided with E is overlapped, and the mounting piece 4B and the fixing piece 3E are fastened with bolts 5 and nuts 5A, so that the pump fixing tool 4 becomes a pump support base. 3 is attached.

An upper end of the left standing wall plate 3F is provided with a convex portion 2 of a motor housing portion 2D of the canned pump 2.
A is in contact with the root portion of the motor housing portion 2
D is prevented from rotating counterclockwise.

The pump fixing tool 4 has a fixing piece 4F and a fixing horizontal piece 4G which are orthogonal to each other, and the above-mentioned mounting piece 4B is bent outward at the lower end of the fixing piece 4F. A hanging piece 4A is formed at one end of the fixing horizontal piece 4G in the longitudinal direction so as to be in contact with a part of the end face 2B of the motor housing part 2D excluding the motor lock releasing part 2E. Furthermore, a U-shaped groove 4 with which a part of the pump casing portion 2C of the canned pump 2 engages with each of the fixing piece 4F and the fixing horizontal piece 4G.
C and 4D are formed.

The pump fixture 4 is provided with the grooves 4C, 4D
Is attached to the pump support base 3 so as to engage with a part of the pump casing 2C and make the hanging piece 4A contact the end face 2B of the motor housing 2D.
In addition to preventing the cand pump 2 from moving in the axial direction, the canned pump 2 is prevented from rotating in the circumferential direction in cooperation with the left standing wall plate 3F of the pump support base 3.

The present invention is configured as described above.
A method of attaching the canned pump 2 to the pump support 3 will be described. First, the motor housing 2D of the canned pump 2 is mounted on the left and right standing wall plates 3 of the pump support base 3.
F, 3G, these left and right standing wall boards 3
2, the motor housing 2D is interposed between F and 3G, and as shown in FIG. 2, the electrical component box 2F is positioned diagonally to the upper left, and the upper end of the left standing wall plate 3F is connected to the base of the convex portion 2A. To the motor housing part 2
D is placed on the raised portion 3A of the bottom wall plate 3D.

Next, the grooves 4C and 4D of the fixing vertical piece 4F and the horizontal fixing piece 4G of the pump fixing tool 4 are inserted into the pump casing section 2.
C, respectively, and the hanging pieces 4 of the fixing horizontal pieces 4G.
A is brought into contact with the end face 2B of the motor housing portion 2D, and in this state, the mounting piece 4B of the pump fixing tool 4 is fastened to the fixing piece 3E of the pump support base 3 with the bolt 5 and the nut 5A. The pump fixing tool 4 is attached to the pump support 3, and the mounting of the cand pump 2 to the pump support 3 is completed.

As described above, the pump support base 3 on which the cand pump 2 has been mounted is placed at a predetermined position on the bottom plate 1 constituting a body frame such as a boiler, and is mounted on the bottom wall plate 3D of the pump support base 3. The two drilled holes 3B, 3B are matched with the holes 1A, 1A of the bottom plate 1, and the pump support 3 is fastened to the bottom plate 1 via fixing screws 6, 6.

According to the present embodiment, the bottom wall plate 3D and the left and right standing wall plates 3F, 3E provided on both sides of the bottom wall plate 3D.
G, and a pump support 3 mounted and fixed on a bottom plate 1 constituting a body frame such as a boiler, and a motor housing of the cand pump 2 is provided by left and right standing wall plates 3F, 3G of the pump support 3. While holding the portion 2D, the upper end of the left (one side) standing wall plate 3F is connected to the convex portion 2 of the motor housing portion 2D.
A is fixed to a part of the pump casing part 2C of the canned pump 2 in the axial direction of the canned pump 2 by being in contact with the root part of the pump supporting base 3 and abutting against a part of the pump casing 2C. Standing wall plate 3 on the left (one side) while preventing movement
Since the pump fixture 4 for preventing the rotation of the canned pump 2 in the circumferential direction in cooperation with F is attached to the fixing piece 3E of the pump support 3, the canned pump 2 is rotated counterclockwise. Is prevented by the left (one side) standing wall plate 3F of the pump support base 3, the clockwise rotation of the canned pump 2 is prevented by the pump fixture 4, and the axial movement of the canned pump 2 is prevented by the pump fixture. Therefore, even if the canned pump 2 does not have a boss portion or a leg portion as a fixing means, it can be easily and reliably placed on the bottom plate 1 constituting a body frame such as a boiler. Can be fixed.

The bottom wall plate 3D of the pump support 3 has
A raised portion 3A on which the motor housing portion 2D of the canned pump 2 is mounted is formed substantially at the center thereof, so that the pumped portion 2C of the canned pump 2 is separated from the motor housing portion 2D by the action of the raised portion 3A. The canned pump 2 can be stably supported in a horizontal state by the pump support base 3 even when the canned tube 2 projects outward in the circumferential direction.

The bottom wall plate 3D of the pump support 3 has a portion protruding outside the motor housing 2D of the canned pump 2, and a fixing screw 6
Is provided, so that the motor housing 2D can be used when attaching and detaching the pump support base 3.
Can be kept out of the way.

The pump fixture 4 has a fixing piece 4F and a fixing piece 4G which are orthogonal to each other, and the fixing piece 4F and the fixing piece 4G are respectively attached to the pump casing of the canned pump 2. A groove 4C in which a part of the portion 2C is engaged,
Since the grooves 4C and 4D are engaged with a part of the pump casing portion 2C, the rotation of the canned pump 2 in the circumferential direction and the movement in the axial direction can be further improved.
It can be reliably prevented.

Further, the pump fixing tool 4 has a fixing stand 4F and a fixing cross piece 4G which are orthogonal to each other, and an end of the motor housing portion 2D of the canned pump 2 is attached to an end of the fixing cross piece 4G. Since the hanging piece 4A abutting on 2B is bent, the axial movement of the canned pump 2 can be more reliably prevented by the hanging piece 4A.

The hanging piece 4A bent at the end of the horizontal fixing piece 4G abuts a part of the end face 2B of the motor housing 2D except for the motor unlocking part 2E. The motor unlocking portion 2E provided on the end face 2B can be easily operated without being obstructed by the hanging piece 4A.

[0031]

As described above, according to the first aspect of the present invention, a bottom plate constituting a body frame of a boiler or the like is provided with:
A fixed structure of a circulating pump for fixing a circulating pump in which a convex portion is formed in a part of a substantially cylindrical motor housing portion, comprising a bottom wall plate and left and right provided on both sides of the bottom wall plate. And a pump support pedestal mounted and fixed on the bottom plate, the left and right upright wall plates of the pump support sandwich the motor housing portion of the circulating pump, and one of the upright wall plates The upper end portion is brought into contact with the convex portion of the motor housing portion, and the other vertical wall plate of the pump support is engaged with a part of the pump casing portion of the circulation pump to move the circulation pump in the axial direction. A pump fixing device is mounted to prevent the circulation pump from rotating in the circumferential direction in cooperation with the one vertical wall plate, so that a special fixing means such as a fixing boss portion or a leg portion is provided. Circulating pump without The bottom plate constituting the device body frame such Iler, easily and reliably fixed.

According to the second aspect of the present invention, in the fixed structure of the circulating pump according to the first aspect, the bottom wall plate of the pump support base is provided substantially at the center thereof with the motor housing portion of the circulating pump. Is formed, the circulating pump can be stably supported in a horizontal state even when the pump casing projects beyond the motor housing in the circumferential direction.

According to the third aspect of the present invention, in the fixed structure of the circulating pump according to the first aspect, the bottom wall plate of the pump support stand projects outside the motor housing of the circulating pump. Since a hole for inserting a fixing screw is provided in the protruding portion, the motor housing of the circulating pump can be prevented from obstructing the mounting and removing operations of the pump support base.

According to a fourth aspect of the present invention, in the circulating pump fixing structure according to the first aspect, the pump fixing device has a fixing vertical piece and a fixing horizontal piece that are orthogonal to each other, Each of the fixing piece and the fixing horizontal piece is provided with a groove in which a part of the pump casing of the circulating pump is engaged, so that the circumferential rotation and the axial movement of the circulating pump can be further improved. It can be reliably prevented.

According to the fifth aspect of the present invention, in the fixing structure of the circulating pump according to the first aspect, the pump fixing tool has a fixing vertical piece and a fixing horizontal piece that are orthogonal to each other, Since the hanging piece that is in contact with the end face of the motor housing of the circulation pump is bent at the end of the fixing horizontal piece, the movement of the circulation pump in the axial direction can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is an exploded view illustrating a fixing structure of a circulation pump according to an embodiment of the present invention.

FIG. 2 is a front view of a fixed state of a circulating pump according to an embodiment of the present invention.

FIG. 3 is a side view showing a fixed state of a circulation pump according to an embodiment of the present invention.

FIG. 4 is a plan view showing a fixed state of a circulating pump according to an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 bottom plate constituting body frame such as boiler 2 canned pump (circulation pump) 2A convex part 2B end face of motor housing part 2C pump casing part 2D motor housing part 3 pump support base 3A raised part 3B hole 3D bottom wall plate 3F left 3G Right standing wall plate (the other standing wall plate) 4A Pump fixture 4A Hanging piece 4C Groove 4D groove 4F Fixing piece 4G Fixing horizontal piece 6 Fixing screw D Circulating pump motor Outer diameter of housing part L Inner dimension between standing wall plates

Claims (5)

[Claims] 1. A bottom plate constituting a body frame of a boiler or the like,
A fixed structure of a circulating pump for fixing a circulating pump in which a convex portion is formed in a part of a substantially cylindrical motor housing portion, comprising a bottom wall plate and left and right provided on both sides of the bottom wall plate. And a pump support pedestal mounted and fixed on the bottom plate, the left and right upright wall plates of the pump support sandwich the motor housing portion of the circulating pump, and one of the upright wall plates The upper end portion is brought into contact with the convex portion of the motor housing portion, and the other vertical wall plate of the pump support is engaged with a part of the pump casing portion of the circulation pump to move the circulation pump in the axial direction. A fixing structure for a circulating pump, wherein a pump fixing member for preventing rotation of the circulating pump in the circumferential direction is mounted in cooperation with the one wall plate. 2. The pump according to claim 1, wherein the bottom wall of the pump support is provided with a raised portion at a substantially central portion thereof on which a motor housing of the circulating pump is mounted. Fixed structure of circulation pump. 3. The pump according to claim 1, wherein the bottom wall plate of the pump support has a portion protruding outside the motor housing of the circulating pump, and a hole through which a fixing screw is inserted is provided in the protruding portion. The fixing structure for a circulation pump according to claim 1. 4. The pump fixture has a fixing piece and a fixing piece that are orthogonal to each other, and a part of the pump casing of the circulating pump is attached to each of the fixing piece and the fixing piece. The fixing structure of the circulating pump according to claim 1, wherein an engaging groove is provided. 5. The pump fixing device has a fixing vertical piece and a fixing horizontal piece that are orthogonal to each other, and a hanging piece abutting on an end of the fixing horizontal piece and an end face of a motor housing portion of the circulation pump. Is formed in a bent shape.
3. The fixing structure of the circulating pump according to 1.