Split type centrifugal pump

Abstract

The utility model discloses a split type centrifugal pump which comprises a base, a motor installed above the base and a pump body installed at the output end of the motor, a pump body connecting flange is fixedly arranged on the surface where an output shaft of the motor is located, and the pump body is composed of a pump body shell and an impeller. The pump body shell is composed of a fixed pump body shell body and a movable pump body shell body, the fixed pump body shell body is fixed to the pump body connecting flange through bolts, and the movable pump body shell body is arranged on one side of the fixed pump body shell body. The pump body shell is composed of the fixed pump body shell and the movable pump body shell, the rocker is rotated to drive the lead screw to rotate, the pull plate in threaded connection with the lead screw can move along the lead screw, and then the connecting shaft fixed to the pull plate is driven to move. Therefore, the movable pump body shell can be close to or away from the fixed pump body shell, rapid opening and closing of the pump body shell are achieved, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, and particularly relates to a split centrifugal pump. Background Art

[0002] Liquid enters the pump body through the water inlet. After the motor starts, the output end drives the impeller to rotate, and the water is sent out through the water outlet by the centrifugal force generated when the impeller rotates. It belongs to a self-priming pump. The centrifugal pump mainly consists of an impeller, a pump body, a pump cover, a water retaining ring, a transmission shaft, bearings and a stuffing box.

[0003] The pump body shell of the existing centrifugal pump is generally connected and fixed by bolts. Therefore, when overhauling the internal structure of the centrifugal pump, it is necessary to remove the bolts one by one, and the maintenance efficiency is relatively low. Content of the Utility Model

[0004] The purpose of the utility model is to provide a split centrifugal pump to solve the problems in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A split centrifugal pump, including a base and a motor installed above the base, and a pump body installed on the output end of the motor. A pump body connection flange is fixedly arranged on the surface where the output shaft of the motor is located. The pump body consists of a pump body shell and an impeller. The pump body shell consists of a fixed pump body shell and a movable pump body shell. The fixed pump body shell is fixed on the pump body connection flange by bolts. The movable pump body shell is arranged on one side of the fixed pump body shell. The impeller is fixed on the output shaft of the motor and is inside the pump body shell. A connection shaft fixing seat is fixedly arranged on each side of the movable pump body shell. A connection shaft sliding seat is fixedly arranged on each side of the motor housing. A connection shaft is installed on the connection shaft fixing seat and the connection shaft sliding seat on the same side. The connection shaft is fixedly connected with the connection shaft fixing seat, and the connection shaft is slidably connected with the connection shaft sliding seat. A pull plate is fixed between the two connection shafts. The pull plate is located at the tail of the motor. A support plate is vertically fixed on one side of the top of the base. A lead screw is installed on the support plate. The middle part of the pull plate is threadedly connected with the lead screw. A rocker is fixed at the tail of the lead screw.

[0006] Preferably, a pressure ring is fixedly arranged on the surface of the movable pump body shell facing the fixed pump body shell, and a rubber sealing ring is installed on the surface of the fixed pump body shell facing the movable pump body shell.

[0007] Preferably, a hook plate mounting seat is fixedly arranged on the top of the pump body connection flange. A hook plate is installed on the hook plate mounting seat through a rotating shaft. An impact plate is fixedly connected to the side surface of the hook plate.

[0008] Preferably, a notch extending upward is formed in the middle of the support plate.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: The pump body housing of the present utility model is composed of a fixed pump body housing and a movable pump body housing. By rotating the rocker to drive the rotation of the lead screw, the pull plate threadedly connected to the lead screw can be moved along the lead screw, thereby driving the connecting shaft fixed on the pull plate to move, so that the movable pump body housing can approach and move away from the fixed pump body housing, realizing the quick opening and closing of the pump body housing and facilitating maintenance;

[0010] A pressure ring is fixedly arranged on one side surface of the movable pump body housing facing the fixed pump body housing, and a rubber sealing ring is installed on one side surface of the fixed pump body housing facing the movable pump body housing. By squeezing the rubber sealing ring with the pressure ring, the pump body housing has good sealing performance after being closed;

[0011] A hook plate mounting seat is fixedly arranged on the top of the pump body connecting flange, and a hook plate is installed on the hook plate mounting seat through a rotating shaft. After the pump body housing is closed, the hook plate can buckle the movable pump body housing, so that the movable pump body housing and the fixed pump body housing remain in a tightly fitting state. Description of the Drawings

[0012] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0013] Figure 1 is the three-dimensional structural schematic diagram of the whole of the present utility model;

[0014] Figure 2 is the top-view structural schematic diagram of the whole of the present utility model;

[0015] Figure 3 is the structural schematic diagram of the pump body housing of the present utility model when it is opened.

[0016] In the figures: 1, base; 2, support plate; 3, rocker; 4, notch; 5, pull plate; 6, lead screw; 7, motor; 8, connecting shaft sliding seat; 9, pump body connecting flange; 10, hook plate mounting seat; 11, hook plate; 12, impact plate; 13, fixed pump body housing; 14, movable pump body housing; 15, connecting shaft fixing seat; 16, connecting shaft; 17, pressure ring; 18, rubber sealing ring. Detailed Embodiments

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-3 In an embodiment of the present utility model, a split centrifugal pump includes a base 1, a motor 7 installed above the base 1, and a pump body installed on the output end of the motor 7. A pump body connection flange 9 is fixedly provided on the surface of the output shaft of the motor 7. The pump body is composed of a pump body housing and an impeller. The pump body housing is composed of a fixed pump body housing 13 and a movable pump body housing 14. The fixed pump body housing 13 is fixed to the pump body connection flange 9 by bolts. The movable pump body housing 14 is disposed on one side of the fixed pump body housing 13. The impeller is fixed on the output shaft of the motor 7 and is inside the pump body housing. A connection shaft fixing seat 15 is fixedly provided on each side of the movable pump body housing 14, and a connection shaft sliding seat 8 is fixedly provided on each side of the housing of the motor 7. A connection shaft 16 is installed on the connection shaft fixing seat 15 and the connection shaft sliding seat 8 on the same side. The connection shaft 16 is fixedly connected to the connection shaft fixing seat 15, and the connection shaft 16 is slidably connected to the connection shaft sliding seat 8. A pull plate 5 is fixed between the two connection shafts 16. The pull plate 5 is at the tail of the motor 7. A support plate 2 is vertically fixed on one side of the top of the base 1. A notch 4 extending upward is provided in the middle of the support plate 2, and the notch 4 facilitates the installation of a lead screw 6. A lead screw 6 is installed on the support plate 2. The middle of the pull plate 5 is threadedly connected to the lead screw 6, and a rocker 3 is fixed to the tail of the lead screw 6.

[0019] A pressure ring 17 is fixedly provided on the surface of the movable pump body housing 14 facing the fixed pump body housing 13, and a rubber sealing ring 18 is installed on the surface of the fixed pump body housing 13 facing the movable pump body housing 14.

[0020] A hook plate mounting seat 10 is fixedly provided on the top of the pump body connection flange 9. A hook plate 11 is installed on the hook plate mounting seat 10 through a rotating shaft, and an impact plate 12 is fixedly connected to the side of the hook plate 11.

[0021] The working principle of the present utility model is as follows: The pump body housing of the present utility model is composed of a fixed pump body housing 13 and a movable pump body housing 14. By rotating the rocker 3 to drive the rotation of the lead screw 6, the pull plate 5 threadedly connected to the lead screw 6 can be moved along the lead screw 6, thereby driving the connection shaft 16 fixed on the pull plate 5 to move, so that the movable pump body housing 14 can approach and move away from the fixed pump body housing 13, realizing the rapid opening and closing of the pump body housing and facilitating maintenance;

[0022] On one side surface of the movable pump body housing 14 facing the fixed pump body housing 13, a pressure ring 17 is fixedly arranged, and on one side surface of the fixed pump body housing 13 facing the movable pump body housing 14, a rubber sealing ring 18 is installed. By squeezing the rubber sealing ring 18 with the pressure ring 17, the pump body housing has good sealing performance after being closed;

[0023] On the top of the pump body connection flange 9, a hook plate mounting seat 10 is fixedly arranged, and a hook plate 11 is installed on the hook plate mounting seat 10 through a rotating shaft. After the pump body housing is closed, the hook plate 11 can latch the movable pump body housing 14, so that the movable pump body housing 14 and the fixed pump body housing 13 remain in a closely fitting state.

[0024] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A split centrifugal pump, comprising a base (1), a motor (7) mounted above the base (1), and a pump body mounted on an output end of the motor (7), characterized in that: A pump body connecting flange (9) is fixedly arranged on the surface where the output shaft of the motor (7) is located. The pump body is composed of a pump body shell and an impeller. The pump body shell is composed of a fixed pump body shell (13) and a movable pump body shell (14). The fixed pump body shell (13) is fixed to the pump body connecting flange (9) by bolts. The movable pump body shell (14) is arranged on one side of the fixed pump body shell (13). The impeller is fixed to the output shaft of the motor (7) and is located inside the pump body shell. A connecting shaft fixing seat (15) is fixed on each side of the movable pump body shell (14). A connecting shaft fixing seat (15) is fixed on each side of the shell of the motor (7). A sliding seat (8), a connecting shaft (16) is installed on the connecting shaft fixing seat (15) and the connecting shaft sliding seat (8) on the same side, the connecting shaft (16) is fixedly connected to the connecting shaft fixing seat (15), the connecting shaft (16) and the connecting shaft sliding seat (8) are slidingly connected, a pull plate (5) is fixed between the two connecting shafts (16), the pull plate (5) is located at the tail of the motor (7), a support plate (2) is vertically fixed on one side of the top of the base (1), a screw rod (6) is installed on the support plate (2), the middle part of the pull plate (5) is threadedly connected to the screw rod (6), and a rocker (3) is fixed to the tail of the screw rod (6).

2. A split centrifugal pump according to claim 1, characterized in that: A pressure ring (17) is fixedly provided on a surface of the movable pump housing (14) on one side facing the fixed pump housing (13), and a rubber sealing ring (18) is installed on a surface of the fixed pump housing (13) on one side facing the movable pump housing (14).

3. A split centrifugal pump according to claim 1, characterized in that: A hook plate mounting seat (10) is fixedly provided on the top of the pump body connecting flange (9), a hook plate (11) is mounted on the hook plate mounting seat (10) via a rotating shaft, and an impact plate (12) is fixedly connected to the side of the hook plate (11).

4. A split centrifugal pump according to claim 1, characterized in that: A notch (4) extending upwards is provided in the middle of the support plate (2).

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