Horizontal axial disassembly and assembly type double suction pump

Abstract

The utility model relates to a horizontal type axial disassembly and assembly type double suction pump which comprises a pump body and a motor which are installed on a base, a shaft connected with the motor is arranged in the pump body, an impeller is installed on the shaft, the pump body is arranged in a central symmetry mode, and the impeller is installed on the pump body. The water inlet and the water outlet are arranged perpendicular to the axial direction of the shaft, the two-way opening pump shell is arranged parallel to the axial direction of the shaft, a circular convex spigot is arranged in an opening in one side, facing the outside of the pump body, of the two-way opening pump shell, and a shaft extension protective cover is arranged outside the shaft on one side far away from the motor. The pump body is arranged to be matched with the circular spigot, spigot machining is facilitated, meanwhile, the impeller can be directly assembled and disassembled from the side face, the shaft does not need to be disassembled, the coupler does not need to be disassembled, and simpleness and convenience are achieved. Besides, when the inlet flange and the outlet flange need to be reversed, only the pump body needs to be detached from the base, the shaft extension shield is detached and installed on the shaft extension on the other side, and then the whole pump body is rotated by 180 degrees, so that time and labor are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of double-suction pumps, in particular to a horizontal axially disassemblyable double-suction pump. Background Art

[0002] The double-suction pump is a centrifugal pump introduced from abroad. It has been developed and evolved in China for decades. Due to its high head and large flow rate, it is more common in large-scale water supply, drainage and irrigation projects. As we all know, the double-suction pump is mainly composed of two parts: the pump body and the motor. The core component of the pump body is the impeller. When the impeller is severely cavitated or worn, it needs to be replaced regularly. However, the double-suction pumps on the market are basically split-center type. When the impeller needs to be replaced, the upper cover needs to be opened first, and then the entire shaft and all the parts on the shaft need to be hoisted out to replace the impeller. The whole process requires the cooperation of the lifting device to complete, which is often time-consuming and labor-intensive. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a horizontal axial disassembly type double-suction pump, which does not require the shaft to be disassembled when the impeller is disassembled and replaced, and is simple to maintain.

[0004] The technical solution adopted by the utility model to solve its technical problems is: to provide a horizontal axially disassembled double-suction pump, including a pump body and a motor installed on a base, a shaft connected to the motor is provided in the pump body, an impeller is installed on the shaft, the pump body is centrally symmetrically arranged, including an inlet and a water outlet arranged perpendicular to the axial direction of the shaft, and a two-way open pump shell arranged parallel to the axial direction of the shaft, a circular convex stop is provided in the opening of the two-way open pump shell on one side facing the pump body, the circular convex stop is matched with the circular concave stop of the bearing body, the outer edge of the bearing body is detachably fixed on the pump cover of the two-way open pump shell, and a shaft extension shield is installed outside the shaft away from the motor side.

[0005] Preferably, the shaft on one side close to the motor is connected to the motor via a coupling, and a coupling shield for covering the coupling is provided on the base.

[0006] Preferably, the shaft extension shield is mounted on a bearing cover, and the bearing cover is fixed on the bearing body.

[0007] Preferably, the water inlet is provided with an inlet flange, the water outlet is provided with an outlet flange, and the inlet flange is arranged opposite to the outlet flange.

[0008] Beneficial Effects

[0009] The utility model facilitates the processing of the stop by setting the pump body to be a circular stop. At the same time, the impeller can be assembled and removed directly from the side without removing the shaft, and the coupling does not need to be removed, which is simple and convenient. In addition, by setting the shaft structure to a left-right symmetrical structure, when the inlet flange and the outlet flange need to be reversed without moving the cement foundation of the double-suction pump unit, it is only necessary to remove the pump body from the base, remove the shaft extension shield and install it on the shaft extension on the other side, and then rotate the entire pump body 180°, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional diagram of a horizontal axially disassembled double-suction pump.

[0011] Figure 2 for Figure 1 Schematic diagram of disassembling the bearing body of a horizontal axially disassemblyable double-suction pump.

[0012] Figure 3 for Figure 1 Front view of the pump body.

[0013] Among them, 1. Inlet flange; 2. Shaft extension guard; 3. Bearing body; 4. Two-way open pump casing; 5. Coupling guard; 6. Motor; 7. Base; 8. Outlet flange; 9. Bearing cover; 10. Shaft; 11. Pump cover; 12. Impeller; 13. Round convex stop.

[0014] The same reference numerals in the various drawings represent the same components. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

[0016] like Figure 1 , 2As shown in Figure 3, in a specific embodiment, the utility model provides a horizontal axially disassembled double-suction pump, including a pump body 4 and a motor 6 installed on a base 7, the pump body 4 is provided with a shaft 10 connected to the motor 6, the shaft 10 is provided with an impeller 12, the pump body 4 is centrally symmetrically arranged, including an inlet and an outlet arranged perpendicular to the axial direction of the shaft 10, and a two-way open pump casing arranged parallel to the axial direction of the shaft 10, a circular convex stop 13 is provided in the opening of the two-way open pump casing facing the outside of the pump body 4, the circular convex stop 13 is matched with the circular concave stop of the bearing body 3, the outer edge of the bearing body 3 is detachably fixed on the pump cover 11 of the two-way open pump casing, and a shaft extension shield 2 is installed outside the shaft 10 away from the motor 6.

[0017] The shaft on one side close to the motor 6 is connected to the motor 6 via a coupling, and a coupling shield 5 for covering the coupling is provided on the base 7.

[0018] The shaft extension shield 2 is fixedly mounted on the bearing cover 9 by means of bolts, and the bearing cover 9 is fixed on the bearing body 3 .

[0019] The water inlet is provided with an inlet flange 1, and the water outlet is provided with an outlet flange 8, and the inlet flange 1 is arranged opposite to the outlet flange 8. The impeller 12 always rotates toward the inlet flange 1 during use.

[0020] In a specific embodiment, the two-way opening pump housing, pump cover 11 and bearing body 3 are matched through a circular stopper, and a sealing ring is provided on the sealing surface. This design facilitates the processing and sealing of the double-suction pump and ensures that the components can be disassembled separately and conveniently and flexibly in the axial direction.

[0021] The shaft extensions at both ends of the shaft 10 are also symmetrical, and both ends can be connected to the motor 6 through a coupling. When one end is connected to the motor 6, the other end is installed with a shaft extension shield 2 to prevent the shaft from being exposed. The symmetrical design can achieve flexible reversing of the inlet and outlet on site.

Claims

1. A horizontal axially detachable double-suction pump, comprising a pump body (4) and a motor (6) mounted on a base (7), wherein a shaft (10) connected to the motor (6) is provided in the pump body (4), and an impeller (12) is mounted on the shaft (10), characterized in that: The pump body (4) is arranged in a centrally symmetrical manner, comprising a water inlet and a water outlet arranged perpendicular to the axial direction of the shaft (10), and a two-way open pump casing arranged parallel to the axial direction of the shaft (10); a circular convex stop (13) is provided in the opening of the two-way open pump casing on one side facing the outside of the pump body (4); the circular convex stop (13) matches the circular concave stop of the bearing body (3); the outer edge of the bearing body (3) is detachably fixed to the pump cover (11) of the two-way open pump casing; and a shaft extension shield (2) is installed outside the shaft (10) on the side away from the motor (6).

2. A horizontal axially disassembled double-suction pump according to claim 1, characterized in that: The shaft (10) on one side close to the motor (6) is connected to the motor (6) via a coupling, and a coupling shield (5) for covering the coupling is provided on the base (7).

3. A horizontal axially disassembled double-suction pump according to claim 1, characterized in that: The shaft extension shield (2) is mounted on a bearing pressure cover (9), and the bearing pressure cover (9) is fixed on the bearing body (3).

4. A horizontal axially disassembled double-suction pump according to claim 1, characterized in that: The water inlet is provided with an inlet flange (1), and the water outlet is provided with an outlet flange, and the inlet flange (1) is arranged opposite to the outlet flange.

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