Environment-friendly anti-blocking cam rotor pump with chopping device

Abstract

The environment-friendly anti-blocking cam rotor pump with the chopping device comprises a pump body and a double-shaft motor connected with the pump body, the double-shaft motor comprises two shafts, and the two shafts are arranged in an inner cavity of the pump body. A first rotor, a chopping device, a second rotor and a bearing are sequentially and movably connected to the two rotating shafts in the inner cavity of the pump body along the side close to the double-shaft motor, and a pump cover is further movably connected to the side, away from the double-shaft motor, of the pump body. The environment-friendly anti-blocking cam rotor pump with the shredding device has the advantages that blocking is reduced, faults are avoided, and the service life of the rotor is prolonged by adding cutting.

Description

Technical Field

[0001] The invention relates to the technical field of cam rotor pumps, in particular to an environmentally friendly anti-clogging cam rotor pump with a chopping device. Background Art

[0002] The cam rotor pump is one of the most advanced fluid equipment in the world. The high-precision clearance between the rotor and the housing has strong self-priming and high lift. The pump is reliable, sturdy, and energy-saving. It can transport various viscous or particulate media. It is highly efficient, energy-saving, and time-saving. It does not require drainage or priming, and can be applied to various complex fluid media.

[0003] However, existing cam rotor pumps may become clogged during use, and the rotor may wear out and fail to reach its service life. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide an environmentally friendly anti-clogging cam rotor pump with a shredding device, which can improve the cutting and shredding efficiency, shred debris more finely, reduce clogging, avoid failures, and increase the service life of the rotor.

[0005] The present invention provides the following detailed technical solutions:

[0006] An environmentally friendly anti-clogging cam rotor pump with a shredder device comprises a pump body and a double-shaft motor connected to the pump body, the double-shaft motor comprises two shafts, and the two rotating shafts are arranged in the inner cavity of the pump body. A first rotor, a shredder device, a second rotor and a bearing are movably connected in sequence on the two rotating shafts along a side of the inner cavity of the pump body close to the double-shaft motor, and a pump cover is also movably connected on a side of the pump body away from the double-shaft motor.

[0007] Furthermore, the shredding device comprises a first sealing baffle, a fixed cutting blade holder, a rotating cutting blade and a second sealing baffle which are connected in sequence.

[0008] Furthermore, the fixed cutting tool holder is provided with seven ribs, all of which are triangular in shape, and two angles of the triangle are 50 degrees.

[0009] Furthermore, the rotating cutting knife is provided with four ribs, the edges of the ribs are triangular, and two angles of the triangle are 50 degrees.

[0010] Furthermore, the interior of the pump body is ellipsoidal, the water inlet and outlet of the pump body are elliptical, with a major diameter of 1.8D to 2D, and the flange ends of the water inlet and outlet are circular, with a diameter of D.

[0011] Furthermore, a filter component is provided in the water inlet and outlet of the pump body; the filter component is fixed on the pump body by a cylinder and an annular sheet, the cylinder is used to prevent blockage and pump granular objects or debris, and there are 6 to 12 cylinders.

[0012] Furthermore, the first rotor and the second rotor have the same structure, both being impellers with blade structures, and the diameter of the second rotor is 3.5 mm larger than that of the first rotor.

[0013] Furthermore, the number of the first rotor and the number of the second rotor are both two.

[0014] Furthermore, the cam rotor pump also includes a mechanical seal, which is arranged at the connection between the pump body and the motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The environmentally friendly anti-clogging cam rotor pump with a shredding device described in the present invention improves the cutting and shredding efficiency, shreds debris more finely, reduces clogging, avoids failures, increases the service life of the rotor, meets use requirements, and increases market competitiveness by adding a shredding device.

[0017] 2. The environmentally friendly anti-clogging cam rotor pump with a shredding device described in the present invention also adds a filtering component by modifying the pump body structure, so that the pump body provides a better working environment for the cutting component and fully exerts the function of the cutting component.

[0018] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an environmentally friendly anti-clogging cam rotor pump with a chopping device according to the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the pump body of the device;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of a fixed cutting tool holder of the device;

[0022] Figure 4 for Figure 1 A schematic diagram of the structure of the rotating cutting knife of the device;

[0023] Figure 5 for Figure 1 Schematic diagram of the structure of the first rotor and the second rotor of the device. DETAILED DESCRIPTION

[0024] The research and development team of the present invention conducted in-depth research on the problem that existing cam rotor pumps are prone to clogging in fluid media of different sizes. Analysis found that when the cam rotor pump is clogged, impurities will continue to wear the pump's rotor and even cause the rotor to stop rotating, which seriously shortens the rotor's service life. Therefore, users have to replace the rotor frequently, which not only increases the cost of use, but also increases the merchant's after-sales service burden. In order to solve this problem, the present invention specially designs an environmentally friendly anti-clogging cam rotor pump equipped with a shredding device.

[0025] Please refer to Figure 1 The environmentally friendly anti-clogging cam rotor pump with a shredder device of the present invention comprises a pump body 10 and a double-shaft motor 20 connected to the pump body, wherein the double-shaft motor comprises two shafts 21, and the two rotating shafts 21 are arranged in the inner cavity of the pump body 10. In the inner cavity of the pump body 10, along a side close to the double-shaft motor 20, a first rotor 11, a shredder device 12, a second rotor 13 and a bearing 14 are movably connected in sequence on the two rotating shafts 21, and a pump cover 15 is also movably connected on a side of the pump body away from the double-shaft motor.

[0026] The interior of the pump body 10 is ellipsoidal, and the water inlet and outlet 16 of the pump body 10 is elliptical, with a major diameter of 1.8D to 2D. The flange end 161 of the water inlet and outlet 16 is circular, and the diameter of the flange end 161 is D. A filter component 162 is also provided in the water inlet and outlet of the pump body 10. The filter component is fixed to the pump body 10 by a cylinder 1621 and a circular ring sheet 1622. The cylinder 1621 is used to prevent blocking and pump granular objects or debris. Preferably, there are 6 to 12 cylinders.

[0027] The shredder 12 comprises a first sealing baffle 121 , a fixed cutting blade holder 122 , a rotating cutting blade 123 and a second sealing baffle 124 which are connected in sequence.

[0028] The fixed cutting tool holder 122 is provided with seven ribs, all of which are triangular in shape, two of the angles of the triangle are 50°, and the edges are polished to be fixed cutting blades. The fixed cutting tool holder 122 is also provided with two mounting holes matching the shaft 21, and the fixed cutting tool holder 122 is mounted on the two shafts 21 through the two mounting holes.

[0029] The rotating cutting knife 123 is provided with four ribs, the edges of the ribs are triangular, two corners of the triangle are at an angle of 50°, the edges of the ribs are polished to form a rotating cutting blade, and a mounting hole is provided in the center of the rotating cutting knife 123.

[0030] The first rotor 11 and the second rotor 13 have the same structure, both are impellers with three blades, and the diameter of the second rotor 13 is 3.5 mm larger than that of the first rotor. In the present invention, the number of the first rotor 11 and the second rotor 13 are both two, and they are movably connected to the two shafts 21 respectively.

[0031] The cam rotor pump of the present invention further includes a mechanical seal 17 , which is disposed at the connection between the pump body 10 and the motor 20 .

[0032] When the cam rotor pump described in the present invention is in use, the filter component 162 is fixed to the pump body 10, and then the pump body 10 is installed on the dual-axis motor 20 and locked with hexagon socket screws, and then the mechanical seal 17, the first rotor 11, the first sealing baffle 121, the fixed cutting tool holder 122, the rotating cutting knife 123, the second sealing baffle 124, and the second rotor 13 are installed on the two shafts 21 in sequence, and then the bearing 14 is installed and locked with a round nut, the two shafts are rotated to check whether the parts are properly matched, and when operating normally, the pump cover 15 is finally installed and locked with hexagon socket screws. In this way, the environmentally friendly and anti-clogging cam rotor pump with a shredding device described in the present invention is assembled, and the installation is simple, and the order can be reversed when disassembling.

[0033] The working principle of the cam rotor pump of the present invention is as follows: when the cam rotor pump of the present invention is in operation, the pumped granular objects or debris are guided into the shredding device 12 through the filter component 16 and stop on the fixed cutting tool holder 122, and the fixed cutting tool holder 122 is fixed on the pump body 10. The rotating cutter 123, driven by the shaft 21, cuts the granular objects or debris in the opposite direction with the fixed cutting tool holder 122, and then transports them to the outside of the pump body 10 by the rib plate. The four rib plates on the rotating cutter 123 will perform four cutting and shredding actions with the fixed cutting tool holder 122 during one rotation, thereby improving the cutting and shredding efficiency, making the debris shredded more finely, thereby reducing blockage, avoiding failures, and improving the service life of the rotor, and increasing market competitiveness.

[0034] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, and the present invention is also intended to include these modifications and modifications.

Claims

1. An environmentally friendly anti-clogging cam rotor pump with a chopping device, characterized in that: The invention comprises a pump body and a double-shaft motor connected to the pump body, wherein the double-shaft motor comprises two shafts, and the two rotating shafts are arranged in the inner cavity of the pump body. A first rotor, a chopping device, a second rotor and a bearing are movably connected in sequence on the two rotating shafts along a side close to the double-shaft motor in the inner cavity of the pump body, and a pump cover is also movably connected on a side of the pump body away from the double-shaft motor.

2. The environmentally friendly anti-clogging cam rotor pump according to claim 1 is characterized in that: The shredder device comprises a first sealing baffle, a fixed cutting blade holder, a rotating cutting blade and a second sealing baffle which are connected in sequence.

3. The environmentally friendly anti-clogging cam rotor pump according to claim 2 is characterized in that: The fixed cutting tool holder is provided with seven ribs, all of which are triangular in shape, and two angles of the triangle are 50 degrees.

4. The environmentally friendly anti-clogging cam rotor pump according to claim 3 is characterized in that: The rotating cutting knife is provided with four rib plates, the edges of the rib plates are triangular, and two angles of the triangle are 50 degrees.

5. The environmentally friendly anti-clogging cam rotor pump according to claim 4 is characterized in that: The interior of the pump body is ellipsoidal, the water inlet and outlet of the pump body are elliptical, with a major diameter of 1.8D to 2D, and the flange ends of the water inlet and outlet are circular, with a diameter of D.

6. The environmentally friendly anti-clogging cam rotor pump according to claim 1 is characterized in that: A filter component is also provided in the water inlet and outlet of the pump body; the filter component is fixed on the pump body by a cylinder and a circular ring sheet, the cylinder is used for preventing blockage and pumping granular objects or debris, and there are 6 to 12 cylinders.

7. The environmentally friendly anti-clogging cam rotor pump according to claim 1 is characterized in that: The first rotor and the second rotor have the same structure, both being impellers with blade structures. The diameter of the second rotor is 3.5 mm larger than that of the first rotor.

8. The environmentally friendly anti-clogging cam rotor pump according to claim 7, characterized in that: The number of the first rotor and the number of the second rotor are both two.

9. The environmentally friendly anti-clogging cam rotor pump according to claim 1, characterized in that: The cam rotor pump further comprises a mechanical seal, which is arranged at the connection between the pump body and the motor.

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