Centrifugal pump

Abstract

The invention relates to the technical field of water pumping equipment, in particular to a centrifugal pump which comprises a pump body, the pump body is installed on the upper portion of a floating body, and a cavity is formed in the inner side of the floating body; notches are symmetrically formed in the two sides of the cavity. A first crushing roller and a second crushing roller are symmetrically and rotationally arranged in the notch in the vertical direction, and the first crushing roller and the second crushing roller are matched with each other; a transmission assembly is arranged on one side of the first crushing rollers on the two sides and used for driving the first crushing rollers. According to the device, duckweed on the surface of a water body can be collected and crushed in shallow water environments such as mining areas or underground, threats of the duckweed are thoroughly eliminated, and then the problems that due to accumulation of the duckweed on equipment, local stability is lowered, and finally overturning is caused can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of water pumping equipment, and in particular to a centrifugal pump. Background Art

[0002] A centrifugal pump is a pump that uses the centrifugal force generated by the rotation of the impeller to transport liquid. When working, the impeller of the centrifugal pump rotates at high speed under the drive of the motor, and the liquid is sucked into the center of the impeller and thrown outward along the blades under the action of centrifugal force. The liquid gains kinetic energy at the outer edge of the impeller and then enters the pump casing. In the volute-shaped channel inside the pump casing, the kinetic energy of the liquid is gradually converted into static pressure energy, and finally discharged from the pump body at a higher pressure and transported to the desired location.

[0003] Some centrifugal pumps in the prior art need to be installed in shallow water areas, and duckweed is prone to appear in shallow water areas. If the duckweed is entangled on the pump body, the stability of the support system will be affected. If the force is uneven, the equipment will capsize. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a centrifugal pump.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A centrifugal pump is designed, comprising a pump body, wherein the pump body is installed on the upper part of a floating body:

[0007] A chamber is provided inside the floating body;

[0008] Notches are symmetrically provided on both sides of the chamber;

[0009] The notch is symmetrically rotated in the vertical direction and is provided with a first crushing roller and a second crushing roller, and the first crushing roller and the second crushing roller cooperate with each other;

[0010] One side of the first crushing rollers on both sides is provided with a transmission assembly for driving the first crushing rollers.

[0011] Preferably, the transmission assembly includes a transmission shaft, transmission teeth, a chain, a stepper motor and a main gear;

[0012] The stepper motor is installed in the chamber, and its output end is connected to the external main gear;

[0013] The transmission teeth are fixed on the extended axis of the first crushing roller through a transmission shaft;

[0014] The chain sleeve is arranged on the outer sides of the transmission teeth and the main gear.

[0015] Preferably, the sizes of the first crushing roller and the second crushing roller are set to be the same, and the sizes of the second crushing roller, the first crushing roller and the notch match each other.

[0016] Preferably, two floating frames are symmetrically arranged at the lower end of the floating body.

[0017] Preferably, a distance is provided between the two floating bodies, and opposite sides of the two floating bodies are arranged in an arc shape.

[0018] Preferably, both sides of the lower end of the chamber are arranged to be inclined toward the middle, and a bottom plate is detachably installed at the middle of the lower end of the chamber, and a plurality of water leakage holes are opened at the bottom of the bottom plate.

[0019] Preferably, a one-way valve is provided in each of the leakage holes.

[0020] Preferably, a water collecting trough is provided inside the floating frame, and a slot hole is provided at a position of the chamber close to the notch, and the water collecting trough is connected with the interior of the chamber through the slot hole.

[0021] Preferably, a drain outlet is provided at the bottom of the water collecting tank, and a rubber plug is provided in the drain outlet.

[0022] Preferably, the bottom height of the floating frame is lower than the position height of the bottom plate.

[0023] A centrifugal pump proposed in the present invention has the beneficial effect that the centrifugal pump can collect and crush duckweed on the surface of the water body in a shallow water environment such as a mining area or underground, completely eliminating the threat of duckweed, and preventing duckweed from accumulating on the equipment, causing a decrease in local stability and ultimately leading to capsizing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a centrifugal pump proposed by the present invention.

[0025] Figure 2 This is a structural front view of a centrifugal pump proposed by the present invention.

[0026] Figure 3 The figure is a bottom view of the structure of a centrifugal pump proposed by the present invention.

[0027] Figure 4 This is a top view of the structure of a centrifugal pump proposed by the present invention.

[0028] Figure 5 This is a rear view of the structure of a centrifugal pump proposed by the present invention.

[0029] Figure 6 This is an enlarged structural diagram of a floating frame of a centrifugal pump proposed by the present invention.

[0030] In the figure: pump body 1, floating body 2, first crushing roller 3, second crushing roller 4, transmission shaft 5, transmission gear 6, chain 7, floating frame 8, chamber 9, bottom plate 10, leakage hole 11, notch 12, stepping motor 13, main gear 14, slot 15, water collecting trough 16, drain outlet 17. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Example 1

[0033] Reference Figure 1-5 , a centrifugal pump, comprising a pump body 1, the pump body 1 is installed on the upper part of a floating body 2:

[0034] A chamber 9 is provided inside the floating body 2;

[0035] Notches 12 are symmetrically provided on both sides of the chamber 9;

[0036] The notch 12 is symmetrically rotated in the vertical direction to be provided with a first crushing roller 3 and a second crushing roller 4, and the first crushing roller 3 and the second crushing roller 4 cooperate with each other;

[0037] One side of the first crushing rollers 3 on both sides is provided with a transmission assembly for driving the first crushing rollers 3 .

[0038] The transmission assembly includes a transmission shaft 5, a transmission tooth 6, a chain 7, a stepper motor 13 and a main gear 14;

[0039] The stepper motor 13 is installed in the chamber 9, and its output end is connected to the external main gear 14;

[0040] The transmission tooth 6 is fixed on the extended axis of the first crushing roller 3 through the transmission shaft 5;

[0041] The chain 7 is sleeved on the outer sides of the transmission teeth 6 and the main gear 14 .

[0042] The sizes of the first crushing roller 3 and the second crushing roller 4 are identical, and the sizes of the second crushing roller 4 , the first crushing roller 3 and the notch 12 match each other.

[0043] The pump body 1 is fixed on the upper end of the float 2, and the pipeline is installed on the water inlet and outlet of the pump body 1. The float 2 floats on the water surface. At this time, the working power of the stepper motor 13 is started. After the power is turned on, the main gear 14 is driven to rotate, and the kinetic energy is transmitted to the transmission gear 6 on the chain 7, thereby driving the first crushing rollers 3 on both sides of the float 2 to rotate. Since the teeth on the outer sides of the first crushing roller 3 and the second crushing roller 4 are meshed with each other, the duckweed floating and accumulated on the water surface on both sides of the float 2 can be pulled in by the second crushing roller 4 and the first crushing roller 3. After the first crushing roller 3 and the second crushing roller 4 squeeze and crush the duckweed, the duckweed debris will slide in the chamber 9 and then fall to the position of the bottom plate 10. The advantage of this design is that the attachment and accumulation of duckweed may change the surface condition of the float, increase the local weight and resistance of the float, and affect its stability and motion performance. The stepper uses the float 2 to support the pump body 1. At the same time, with the help of the float 2, the harsh shallow water environment such as underground or mining areas is improved, thereby improving the overall stability of the equipment.

[0044] Example 2

[0045] Stones often fall from underground and in mining areas. When the stones fall into the water, ripples will appear on the water surface. Such ripples will cause the floating body 2 to swing at a large angle.

[0046] refer to Figure 1 The difference between this embodiment and the first embodiment is that the two sides of the lower end of the chamber 9 are inclined toward the middle, and a bottom plate 10 is detachably installed at the middle of the lower end of the chamber 9, a plurality of water leakage holes 11 are opened at the bottom of the bottom plate 10, and a check valve is arranged in each of the plurality of water leakage holes 11, two floating frames 8 are symmetrically arranged at the lower end of the floating body 2, a spacing is arranged between the two floating bodies 2, and the opposite sides of the two floating bodies 2 are arranged in an arc shape,

[0047] The fundamental reason for the large-angle swing of the float 2 is that the draft of the float 2 and the floating frame 8 symmetrically arranged at the lower end is insufficient, resulting in insufficient stability. However, if a larger draft is set at the beginning, the first crushing roller 3 and the second crushing roller 4 will sink below the water surface, which will make it impossible to clean the duckweed on the water surface well. Therefore, the duckweed crushed by the first crushing roller 3 and the second crushing roller 4 is collected on the inner side of the chamber 9, and the water entering is smoothly discharged from the leakage hole 11. In this way, the duckweed smoothly enters the bottom of the chamber 9, increasing the overall weight of the float 2 and invisibly increasing the draft of the float 2. In this way, the float 2 can stand more stably in the shallow water area, and the generated floating waves will not cause too much impact. In this way, the impact of stones falling into the water is effectively avoided.

[0048] Example 3

[0049] In order to prevent the device from being top-heavy and bottom-light, and from tilting at too large an angle during a collision.

[0050] refer to Figure 6 The difference between this embodiment and embodiment 1 and embodiment 2 is that:

[0051] A water collecting tank 16 is provided inside the floating frame 8 , and a slot hole 15 is provided near the notch 12 of the chamber 9 . The water collecting tank 16 is connected to the inside of the chamber 9 through the slot hole 15 .

[0052] A drain port 17 is provided at the bottom of each water collecting tank 16 , and a rubber plug is provided in the drain port 17 .

[0053] The bottom height of the floating frame 8 is lower than the position height of the bottom plate 10 .

[0054] In order to solve this problem, a water collecting trough 16 is set on the inner side of the floating frame 8. When the duckweed is broken, part of the water brought in together will enter the inner side of the water collecting trough 16 along the slot 15. In this way, after the water collecting troughs 16 on both sides are filled with water, the water intake at the bottom of the equipment can be increased, and the problem of the overall heavy top and light bottom of the equipment is also solved. Therefore, the stability of the equipment is further improved.

[0055] The working principle of the device is:

[0056] The pump body 1 is fixed on the upper end of the float 2, and the pipeline is installed on the water inlet and outlet of the pump body 1. The float 2 floats on the water surface. At this time, the working power of the stepper motor 13 is started. After the power is turned on, the main gear 14 is driven to rotate, and the kinetic energy is transmitted to the transmission gear 6 on the chain 7, thereby driving the first crushing rollers 3 on both sides of the float 2 to rotate. Since the teeth on the outer sides of the first crushing roller 3 and the second crushing roller 4 are meshed with each other, the duckweed floating and accumulated on the water surface on both sides of the float 2 can be pulled in by the second crushing roller 4 and the first crushing roller 3. After the first crushing roller 3 and the second crushing roller 4 squeeze and crush the duckweed, the duckweed debris will slide in the chamber 9 and then fall to the position of the bottom plate 10. The advantage of this design is that the attachment and accumulation of duckweed may change the surface condition of the float, increase the local weight and resistance of the float, and affect its stability and motion performance. The stepper uses the float 2 to support the pump body 1. At the same time, with the help of the float 2, the harsh shallow water environment such as underground or mining areas is improved, thereby improving the overall stability of the equipment.

[0057] Stones often fall from underground and in mining areas. When the stones fall into the water, ripples will appear on the water surface. Such ripples will cause the floating body 2 to swing at a large angle.

[0058] The fundamental reason for the large-angle swing of the float 2 is that the draft of the float 2 and the floating frame 8 symmetrically arranged at the lower end is insufficient, resulting in insufficient stability. However, if a larger draft is set at the beginning, the first crushing roller 3 and the second crushing roller 4 will sink below the water surface, which will make it impossible to clean the duckweed on the water surface well. Therefore, the duckweed crushed by the first crushing roller 3 and the second crushing roller 4 is collected on the inner side of the chamber 9, and the water entering is smoothly discharged from the leakage hole 11. In this way, the duckweed smoothly enters the bottom of the chamber 9, increasing the overall weight of the float 2 and invisibly increasing the draft of the float 2. In this way, the float 2 can stand more stably in the shallow water area, and the generated floating waves will not cause too much impact. In this way, the impact of stones falling into the water is effectively avoided.

[0059] In order to prevent the device from being top-heavy and bottom-light, and from tilting at too large an angle during a collision.

[0060] In order to solve this problem, a water collecting trough 16 is set on the inner side of the floating frame 8. When the duckweed is broken, part of the water brought in together will enter the inner side of the water collecting trough 16 along the slot 15. In this way, after the water collecting troughs 16 on both sides are filled with water, the water intake at the bottom of the equipment can be increased, and the problem of the overall heavy top and light bottom of the equipment is also solved. Therefore, the stability of the equipment is further improved.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A centrifugal pump, comprising a pump body (1), wherein the pump body (1) is mounted on the upper part of a floating body (2), characterized in that: A chamber (9) is provided inside the floating body (2); Notches (12) are symmetrically provided on both sides of the chamber (9); The notch (12) is provided with a first crushing roller (3) and a second crushing roller (4) symmetrically rotated in the vertical direction, and the first crushing roller (3) and the second crushing roller (4) cooperate with each other; One side of the first crushing roller (3) on both sides is provided with a transmission assembly for driving the first crushing roller (3).

2. The centrifugal pump according to claim 1, characterized in that: The transmission assembly comprises a transmission shaft (5), transmission teeth (6), a chain (7), a stepping motor (13) and a main gear (14); The stepper motor (13) is installed in the chamber (9), and its output end is connected to an external main gear (14); The transmission tooth (6) is fixed on the extended line of the axis of the first crushing roller (3) through the transmission shaft (5); The chain (7) is sleeved on the outer sides of the transmission teeth (6) and the main gear (14).

3. The centrifugal pump according to claim 2, characterized in that: The sizes of the first crushing roller (3) and the second crushing roller (4) are identical, and the sizes of the second crushing roller (4), the first crushing roller (3) and the notch (12) match each other.

4. The centrifugal pump according to claim 3, characterized in that: Two floating frames (8) are symmetrically arranged at the lower end of the floating body (2).

5. The centrifugal pump according to claim 4, characterized in that: A spacing is provided between the two floating bodies (2), and opposite sides of the two floating bodies (2) are arranged in an arc shape.

6. The centrifugal pump according to claim 5, characterized in that Both sides of the lower end of the chamber (9) are arranged to be inclined toward the middle, and a bottom plate (10) is detachably installed at the middle of the lower end of the chamber (9), and a plurality of water leakage holes (11) are opened at the bottom of the bottom plate (10).

7. The centrifugal pump according to claim 6, characterized in that A check valve is arranged in each of the plurality of water leakage holes (11).

8. The centrifugal pump according to claim 6, characterized in that A water collecting trough (16) is provided inside the floating frame (8), and a slot hole (15) is provided near the notch (12) of the chamber (9), and the water collecting trough (16) is connected to the inside of the chamber (9) through the slot hole (15).

9. The centrifugal pump according to claim 8, characterized in that The bottom of the water collecting tank (16) is provided with a drainage port (17), and a rubber plug is provided in the drainage port (17).

10. The centrifugal pump according to claim 9, characterized in that The bottom height of the floating frame (8) is lower than the position height of the bottom plate (10).

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