Slurry centrifugal pump

Abstract

The utility model discloses a slurry centrifugal pump, which relates to the field of centrifugal pumps and comprises a pump body and a connecting shaft connected onto the pump body, a driving motor is arranged on one side of the pump body, a driving shaft of the driving motor is fixedly connected with the connecting shaft, fan blades are fixed on the outer side of the connecting shaft, air outlets of the fan blades face the driving motor, and the fan blades are fixed on the outer side of the connecting shaft. In actual operation, when the driving shaft drives the connecting shaft to rotate, the fan blades rotate along with the connecting shaft, so that wind power is blown out, the blown-out wind power can dissipate heat of the driving motor in work, and due to the arrangement of the protection plate, the wind power can be gathered, so that the heat dissipation effect of the driving motor is improved, and the service life of the driving motor is prolonged. When the fan blade works, the fan blade only blows towards the driving motor, wind power is prevented from scattering all around, and meanwhile, under the condition that the fan blade does not work, the protection plate and the sliding plate can prevent external dust from falling onto the connecting shaft and the fan blade.

Description

Technical Field

[0001] The utility model relates to the field of centrifugal pumps, in particular to a slurry centrifugal pump. Background Art

[0002] Centrifugal slurry pumps are slurry conveying machinery widely used in various domestic industrial fields. There are nearly one million centrifugal slurry pumps in operation across the country, and they are widely used in slurry conveying in chemical, smelting, environmental protection and other industries.

[0003] Centrifugal slurry pumps are generally driven by a drive motor or an internal combustion engine. Centrifugal slurry pumps transport materials for a long time, which means that the drive parts also need to run continuously. After running for a long time, heat will be generated, which can easily affect the life of the machine.

[0004] Therefore, it is necessary to propose a slurry centrifugal pump to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a slurry centrifugal pump to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slurry centrifugal pump, comprising a pump body and a connecting shaft connected to the pump body, a drive motor is arranged on one side of the pump body, the drive shaft of the drive motor and the connecting shaft are fixedly connected, a fan blade is fixed on the outer side of the connecting shaft, the air outlet of the fan blade faces the drive motor, a protective plate is arranged on the outer side of the fan blade, a sliding plate is slidingly arranged inside the protective plate, and the protective plate and the sliding plate are both arranged to be arched.

[0007] Preferably, a sliding groove is provided at the top of the protective plate, a slider is fixed to the top of the sliding plate, the slider is slidably fitted in the interior of the sliding groove, a through hole is provided at the top of the protective plate, a fixing screw is fitted in the inner thread of the through hole, and the bottom end of the fixing screw is pressed against the upper surface of the sliding plate.

[0008] Preferably, a plurality of wind guide strips are fixed inside the sliding plate along the depth direction, and the wind guide strips are arranged in parallel in pairs, and a spacing is left between the wind guide strips.

[0009] Preferably, a tapered sleeve is fixed to the outer side of the driving shaft, and the diameter of the tapered sleeve at one end close to the driving motor is larger than the diameter at one end close to the pump body.

[0010] Preferably, the bottom ends of the pump body and the driving motor are respectively fixedly connected to a first fixed seat and a second fixed seat, the bottom ends of the first fixed seat and the second fixed seat are both fixedly connected to a supporting base plate, the bottom ends of the protective plate and the sliding plate are flush, and the bottom ends of the protective plate and the sliding plate are both fixed to the top end of the supporting base plate.

[0011] Preferably, the four corners of the first fixing seat and the second fixing seat are all mounted on the top of the supporting base plate by fixing bolts.

[0012] Preferably, the pump body and the drive motor are arranged in a straight line.

[0013] Technical effects and advantages of the utility model:

[0014] 1. In the actual operation of the utility model, when the driving shaft drives the connecting shaft to rotate, the fan blades rotate accordingly, thereby blowing out wind. The blown wind can dissipate the heat of the driving motor in operation, and due to the setting of the protective plate, the wind can be gathered and blown only toward the driving motor to avoid the wind from dispersing. At the same time, when the fan blades are not working, the protective plate and the sliding plate can prevent external dust from falling onto the connecting shaft and the fan blades.

[0015] 2. Furthermore, multiple wind guide strips can make the wind blow in parallel to the drive motor, so that the wind can be blown in a concentrated manner, thereby improving the utilization rate of the wind. In the actual operation of the utility model, the sliding plate can slide inside the protective plate, thereby changing the length between the sliding plate and the protective plate, which is convenient to adapt to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a slurry centrifugal pump from one perspective of the utility model.

[0017] Figure 2 This is a schematic structural diagram of the slurry centrifugal pump from another perspective of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the sliding groove and the wind guide strip of the utility model.

[0019] Figure 4 It is a structural schematic diagram of the tapered sleeve of the utility model.

[0020] In the figure: 1. driving motor; 2. supporting base plate; 3. protective plate; 4. sliding plate; 5. fixing screws; 6. pump body; 7. connecting shaft; 8. fan blades; 9. sliding groove; 10. wind guide strip; 11. first fixing seat; 12. fixing bolts; 13. second fixing seat; 14. conical sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1 - Figure 4 A slurry centrifugal pump shown includes a pump body 6 and a connecting shaft 7 connected to the pump body 6. A drive motor 1 is arranged on one side of the pump body 6. The drive shaft of the drive motor 1 and the connecting shaft 7 are fixedly connected. The bottom ends of the pump body 6 and the drive motor 1 are respectively fixedly connected with a first fixed seat 11 and a second fixed seat 13. The bottom ends of the first fixed seat 11 and the second fixed seat 13 are both fixedly connected with a supporting base plate 2. The bottom ends of the protective plate 3 and the sliding plate 4 are flush, and the bottom ends of the protective plate 3 and the sliding plate 4 are both fixed to the top of the supporting base plate 2.

[0023] In the actual operation of the present utility model, the first fixed seat 11 and the second fixed seat 13 support the pump body 6 and the driving motor 1 respectively. At the same time, the bottom ends of the first fixed seat 11 and the second fixed seat 13 are connected to the supporting bottom plate 2 to form a whole, thereby improving the structural stability of the overall device and dispersing the vibration generated during rotation.

[0024] The four corners of the first fixing seat 11 and the second fixing seat 13 are all mounted on the top of the supporting base plate 2 by fixing bolts 12 . The fixing bolts 12 can be used for fixing and installation, and also facilitate the later disassembly by personnel.

[0025] A fan blade 8 is fixed to the outside of the connecting shaft 7, and the air outlet of the fan blade 8 faces the drive motor 1. The pump body 6 and the drive motor 1 are distributed in a straight line. A protective plate 3 is arranged on the outside of the fan blade 8, and a sliding plate 4 is slidingly arranged inside the protective plate 3. Both the protective plate 3 and the sliding plate 4 are arranged to be arched.

[0026] A plurality of wind guide strips 10 are fixed inside the sliding plate 4 along the depth direction. The wind guide strips 10 are arranged in parallel with each other and a spacing is left between each other.

[0027] In the actual operation of the utility model, when the driving shaft drives the connecting shaft 7 to rotate, the fan blades 8 rotate accordingly, thereby blowing out wind. The blown wind can dissipate the heat of the driving motor 1 in operation, and due to the setting of the protective plate 3, the wind can be gathered and blown only toward the driving motor 1 to avoid the wind from dispersing. At the same time, when the fan blades 8 are not working, the protective plate 3 and the sliding plate 4 can prevent external dust from falling onto the connecting shaft 7 and the fan blades 8.

[0028] Further, a plurality of wind guide strips 10 can make the wind blow in parallel to the driving motor 1, so that the wind can be blown in a concentrated manner, thereby improving the utilization rate of the wind. The position of the fan 8 can also be changed to dissipate heat to the pump body 6 and be used as needed.

[0029] A conical sleeve 14 is fixed to the outside of the drive shaft. The diameter of the conical sleeve 14 near the drive motor 1 is larger than the diameter near the pump body 6. The setting of the conical sleeve 14 can prevent wind from directly blowing to the connection between the drive shaft and the drive motor 1, causing dust to accumulate.

[0030] A sliding groove 9 is provided at the top of the protective plate 3, a slider is fixed to the top of the sliding plate 4, the slider slides in the sliding groove 9, a through hole is provided at the top of the protective plate 3, a fixing screw 5 is fitted in the inner thread of the through hole, and the bottom end of the fixing screw 5 is pressed against the upper surface of the sliding plate 4.

[0031] In the actual operation of the present invention, the sliding plate 4 can slide inside the protective plate 3, thereby changing the length between the sliding plate 4 and the protective plate 3, which is convenient for adapting to actual needs.

Claims

1. A slurry centrifugal pump, comprising a pump body (6) and a connecting shaft (7) connected to the pump body (6), characterized in that: A drive motor (1) is arranged on one side of the pump body (6); a drive shaft of the drive motor (1) is fixedly connected to a connecting shaft (7); a fan blade (8) is fixed on the outer side of the connecting shaft (7); an air outlet of the fan blade (8) faces the drive motor (1); a protective plate (3) is arranged on the outer side of the fan blade (8); a sliding plate (4) is slidably arranged inside the protective plate (3); and both the protective plate (3) and the sliding plate (4) are arranged in an arch shape.

2. A slurry centrifugal pump according to claim 1, characterized in that: A sliding groove (9) is provided at the top of the protective plate (3), a slider is fixed at the top of the sliding plate (4), and the slider is slidably fitted in the interior of the sliding groove (9). A through hole is provided at the top of the protective plate (3), and a fixing screw (5) is fitted in the inner thread of the through hole, and the bottom end of the fixing screw (5) is pressed tightly against the upper surface of the sliding plate (4).

3. A slurry centrifugal pump according to claim 1, characterized in that: A plurality of wind force guide strips (10) are fixed inside the sliding plate (4) along the depth direction, and the wind force guide strips (10) are arranged in parallel in pairs, and a spacing is left between the wind force guide strips (10).

4. A slurry centrifugal pump according to claim 1, characterized in that: A conical sleeve (14) is fixed on the outer side of the driving shaft, and the diameter of the conical sleeve (14) at one end close to the driving motor (1) is larger than the diameter at one end close to the pump body (6).

5. A slurry centrifugal pump according to claim 1, characterized in that: The pump body (6) and the driving motor (1) are arranged in a straight line.

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