Segmented multi-stage centrifugal pump

Abstract

The utility model discloses a sectional multi-stage centrifugal pump which comprises a motor, the output end of the motor is connected with a pump shell, a middle section is connected between the pump shell and the output end of the motor, a supporting plate is arranged at the bottom of the middle section and is of a semicircular structure, the radian of the inner wall of the supporting plate corresponds to that of the middle section, and the side wall of the bottom of the middle section is attached to the inner wall of the supporting plate. The pump machine supporting frame has the advantages that the supporting plates are connected to the supporting legs through the connecting transverse plates, so that the supporting plates can be installed at the designated position along with a pump machine, the radian of the supporting plates corresponds to that of the middle section, the supporting plates are located below the middle section, and therefore the supporting plates can be installed at the designated position along with the pump machine. In this way, when the middle section is disassembled, the supporting plate can support the middle section, it is guaranteed that the middle section is smoothly disassembled, the disassembling convenience is improved, meanwhile, the disassembling safety is improved, supporting structures such as wood blocks do not need to be additionally carried, the burden of workers is relieved, and the disassembling efficiency can also be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a centrifugal pump dismantling structure technical field, concretely relates to a sectional multistage centrifugal pump. BACKGROUND

[0002] Centrifugal pump is now many pump machine a kind, and multistage centrifugal pump is a kind of centrifugal pump many models, it is mainly to feed section, middle section and discharge section are connected together through draw bar, through multistage connection, the middle section itself can be set into multistage structure, for changing the performance of centrifugal pump.

[0003] When the sectional centrifugal pump is disassembled, to avoid the middle section of each section, that is, the liquid outlet section, suddenly drops during disassembly, affecting the stability of the structure, a wooden block is placed at the bottom of the middle section for protection and support, but this also means that an additional wooden block needs to be carried every time the pump is disassembled, increasing the complexity of disassembly. Therefore, a sectional multistage centrifugal pump is proposed. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem by adopting the following technical scheme: a sectional multistage centrifugal pump, comprising a motor, the output end of the motor is connected with a pump shell, the pump shell and the output end of the motor are connected with a middle section, the bottom of the middle section is provided with a supporting plate, the supporting plate is a semicircular structure, and the inner wall arc of the supporting plate corresponds to the middle section, the bottom side wall of the middle section is attached to the inner wall of the supporting plate, and the two side walls of the supporting plate away from each other are fixedly connected with a connecting side plate.

[0005] As a preferred technical scheme of the utility model, the bottom end of the connecting side plate is a conical structure, the bottom end of the two connecting side plates is rotatably connected with a rotating column, the middle of the end of the rotating column away from the connecting side plate is fixedly connected with an extension column, and the extension column is connected with a fixed column at the end away from the rotating column.

[0006] As a preferred technical scheme of the utility model, the inside of the fixed column is provided with a movable slot, the movable slot is threadedly movably connected with a stud, the end of the extension column extending into the movable slot is fixedly connected with the top end of the stud, and the end of the fixed column away from the extension column is fixedly connected with a connecting cross plate.

[0007] As a preferred technical scheme of the utility model, the outer ring wall of the rotating column close to the top edge is fixedly connected with a sprocket, the sprocket is meshingly connected with a chain, the two rotating columns are drivingly connected through the chain, and the outer ring wall of the rotating column close to the extension column is uniformly fixedly connected with a rectangular protrusion.

[0008] As a preferred technical scheme of the utility model, the both ends of the connecting horizontal plate are detachably connected with supporting legs, the top end of the supporting leg is arc-shaped structure, and the two supporting legs are detachably connected on the pump shell and the bottom side wall close to the motor through the top end.

[0009] The utility model has the advantages that: the supporting legs are connected with the supporting legs through the connecting horizontal plate, so that the supporting legs can be installed in the specified position along with the pump machine, and because the arc of the supporting legs corresponds to the middle section and is below the middle section, the supporting legs can provide support for the middle section when the middle section is disassembled, ensuring that the middle section is smoothly disassembled, improving the convenience of disassembly and the safety during disassembly, without the need to carry additional supporting structures such as wood blocks, reducing the burden on the workers, and improving the disassembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 is the main structure schematic diagram of a preferred embodiment of the utility model;

[0011] Fig. 2 is the supporting plate three-dimensional structure schematic diagram of a preferred embodiment of the utility model;

[0012] Fig. 3 is the telescopic column and fixed column structure schematic diagram of a preferred embodiment of the utility model.

[0013] Reference signs: 1, motor; 2, pump shell; 3, middle section; 4, supporting leg; 5, connecting horizontal plate; 6, supporting plate; 7, connecting side plate; 8, rotating column; 9, telescopic column; 10, fixed column; 11, movable groove; 12, stud; 13, chain wheel; 14, chain. DETAILED DESCRIPTION

[0014] The utility model will be further described below with reference to the drawings.

[0015] Please refer to Figs. 1-3 The utility model discloses a sectional type multistage centrifugal pump, including motor 1, the output of motor 1 is connected with pump shell 2, and the output between pump shell 2 and motor 1 is connected with middle section 3, and the bottom of middle section 3 is provided with supporting plate 6, and supporting plate 6 is semicircular structure, and the inner wall arc of supporting plate 6 corresponds with middle section 3, and the bottom side wall of middle section 3 is attached to the inner wall of supporting plate 6, and the both sides side wall of supporting plate 6 away from each other are all fixedly connected with connecting side plate 7.

[0016] The bottom end of the connecting side plate 7 is a tapered structure, the bottom end of the two connecting side plates 7 is rotationally connected with a rotating column 8, the middle of the end of the rotating column 8 away from the connecting side plate 7 is fixedly connected with an extension column 9, the extension column 9 is connected with a fixed column 10 through the end thereof away from the rotating column 8, the two ends of the connecting cross plate 5 are detachably connected with supporting legs 4, the top end of the supporting leg 4 is an arc structure, and the two supporting legs 4 are detachably connected on the pump shell 2 and the bottom side wall close to the motor 1 through the top end.

[0017] As the technical effects of the present scheme are: when disassembling the middle section 3, the supporting plate 6 is lifted to a position close to the middle section 3, and then the middle section 3 is gradually disassembled from the output shaft. The supporting plate 6 can provide sufficient support assistance for the middle section 3 during disassembly, ensure the stability of the middle section 3 during disassembly, reduce the probability of damage to the middle section 3 during disassembly, and improve the safety during disassembly. Because the supporting plate 6 is an arc structure, it can limit the middle section 3 to a certain extent, avoid the rolling of the middle section 3 during disassembly, and affect the disassembly. At the same time, the supporting plate 6 can also provide support assistance for the installation of the middle section 3, improve the convenience of installation, and increase the flexibility of the device application.

[0018] The fixed column 10 is internally provided with a movable slot 11, the movable slot 11 is threadedly movably connected with a stud 12, the end of the extension column 9 extending into the movable slot 11 is fixedly connected with the top end of the stud 12, the end of the fixed column 10 away from the extension column 9 is fixedly connected with the connecting cross plate 5, the outer ring wall of the rotating column 8 close to the top edge is fixedly connected with a sprocket 13, the sprocket 13 is meshingly connected with a chain 14, the two rotating columns 8 are drivingly connected through the chain 14, and the outer ring wall of the rotating column 8 close to the extension column 9 is uniformly fixedly connected with a rectangular protrusion.

[0019] As the technical effects of the present scheme are: rotating the rotating column 8 through the transmission of the sprocket 13 and the chain 14 can simultaneously drive the other rotating column 8 to rotate synchronously, so as to drive the stud 12 to rotate, and through the threaded connection principle, the supporting plate 6 is driven to ascend and descend, thereby realizing the auxiliary support of the supporting plate 6 to the middle section 3. When not needed, the supporting plate 6 is lowered to the lowest position, which can avoid the interference of the supporting plate 6 to the operation of the equipment.

[0020] Specifically, when the device is used, the pump shell 2 is disassembled when needed, then one of the rotating columns 8 is driven to rotate, the chain 14 is driven to transmit through the rotation of the sprocket 13, thereby driving the other rotating column 8 to rotate synchronously, and the stud 12 is rotated synchronously through the rotation of the rotating column 8 and the switching of the extension column 9, the extension column 9 and the rotating column 8 are driven to ascend and descend through the threaded connection relationship, thereby driving the supporting plate 6 to ascend and descend synchronously, the supporting plate 6 is lifted to a position close to the middle section 3, which can provide auxiliary support for the disassembly of the middle section 3, ensure the stability of the disassembly process of the middle section 3, thereby increasing the safety of disassembly, reducing the probability of damage to the parts during disassembly, and the supporting plate 6 can also provide support for installation, thereby increasing the flexibility of the application of the device.

[0021] The above are only preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, some improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

[0022] Other parts not described in the present application are all prior art, so hereinafter will not be described.

[0023] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A segmented multistage centrifugal pump comprising an electric motor (1), characterized in that, The output end of the motor (1) is connected with the pump shell (2), the pump shell (2) and the output end of the motor (1) are connected with the middle section (3), the bottom of the middle section (3) is provided with the supporting plate (6), the supporting plate (6) is semicircular structure, and the inner wall arc of the supporting plate (6) corresponds to the middle section (3), the bottom side wall of the middle section (3) is attached to the inner wall of the supporting plate (6), and the two side walls of the supporting plate (6) are away from each other and are fixedly connected with the connecting side plate (7).

2. A segmented multi-stage centrifugal pump as claimed in claim 1, characterized in that, The bottom end of the connecting side plate (7) is a tapered structure, the bottom end of the two connecting side plates (7) is rotatably connected with the rotating column (8), the middle of the end of the rotating column (8) away from the connecting side plate (7) is fixedly connected with the telescopic column (9), and the telescopic column (9) is connected with the fixed column (10) through the end away from the rotating column (8).

3. A segmented multi-stage centrifugal pump as claimed in claim 2, characterized in that, The inside of the fixed column (10) is provided with a movable slot (11), the movable slot (11) is threadedly connected with the screw column (12), the end of the telescopic column (9) extending into the movable slot (11) is fixedly connected with the top end of the screw column (12), and the end of the fixed column (10) away from the telescopic column (9) is fixedly connected with the connecting cross plate (5).

4. A segmented multi-stage centrifugal pump as claimed in claim 2, wherein, The outer ring wall of the rotating column (8) close to the top edge is fixedly connected with the chain wheel (13), the chain wheel (13) is engagedly connected with the chain (14), the two rotating columns (8) are drivingly connected through the chain (14), and the outer ring wall of the rotating column (8) close to the telescopic column (9) is uniformly fixedly connected with the rectangular protrusion.

5. A segmented multi-stage centrifugal pump as claimed in claim 3, wherein, The two ends of the connecting cross plate (5) are detachably connected with the supporting leg (4), the top end of the supporting leg (4) is an arc structure, and the two supporting legs (4) are detachably connected on the pump shell (2) and the bottom side wall close to the motor (1) through the top end.

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