An energy-efficient slurry pump that is easy to clean internally.

Abstract

This invention relates to the field of pump technology, specifically an energy-saving slurry pump that facilitates internal cleaning. It includes a drive motor, pump body, slurry delivery pipe, cleaning box, and cleaning structure. An impeller assembly is rotatably mounted inside the pump body. The drive motor is fixedly mounted at one end of the pump body, and the slurry delivery pipe is fixedly mounted at the other end. Multiple cleaning windows are provided on the pipe wall near the pump body end. The cleaning box is fixedly mounted on the outer side of the slurry delivery pipe near the pump body end. A cleaning structure, including multiple spray pipes, is installed inside the cleaning box. When cleaning the inside of the pump body, the impeller assembly is moved to the cleaning window, and the spray pipes are activated to continue cleaning the rotating impeller assembly. This solves the problem that existing slurry pumps have a closed internal structure, making it difficult for operators to clean the inside and assess the cleaning quality.

Description

Technical Field

[0001] This invention relates to the field of pump technology, specifically an energy-saving slurry pump that is easy to clean internally. Background Technology

[0002] A slurry pump is a machine that increases the energy of a solid-liquid mixture by using centrifugal force (the rotation of the pump impeller). It converts electrical energy into the kinetic and potential energy of the transported medium and is mainly used in industries such as mining, power plants, dredging, metallurgy, chemical industry, building materials, and petroleum.

[0003] Since slurry pumps transport a mixture of solid particles containing slag and water, residue often accumulates inside the impeller. As the impeller is the main rotating component, the residue on it greatly affects the pumping efficiency.

[0004] Because the existing slurry pumps have a closed internal structure, it is difficult for operators to clean the inside of the slurry pumps and it is also difficult to judge the quality of the cleaning. Summary of the Invention

[0005] The purpose of this invention is to provide an energy-saving slurry pump that is easy to clean internally, in order to solve the problem that the internal structure of existing slurry pumps is closed, making it difficult for operators to clean the inside of the slurry pump and to judge the cleaning quality.

[0006] To achieve the above objectives, the present invention provides an energy-saving slurry pump that is easy to clean internally, including a drive motor, a pump body, a slurry delivery pipe, a cleaning tank, and a cleaning structure;

[0007] An impeller assembly is rotatably mounted inside the pump body. The impeller assembly includes an impeller frame and multiple sets of impeller blades.

[0008] The drive motor is fixedly installed at one end of the pump body. The bottom of the impeller frame is connected to the drive shaft of the drive motor via a rotary connecting rod. The drive shaft drives the rotary connecting rod to rotate coaxially. The rotary connecting rod includes a rotary shaft and a positioning sleeve. The positioning sleeve has a sliding cavity for the end of the rotary shaft to slide into. One end of the rotary shaft is slidably connected to the drive shaft along its axial direction. The positioning sleeve is coaxially fixedly installed at the bottom of the impeller frame. It has a locking component that locks with the rotary shaft. The locking component is used to lock the positioning sleeve and the rotary shaft when the impeller assembly slides into the pump body.

[0009] The slurry delivery pipe is fixedly installed at the other end of the pump body. Multiple sets of cleaning windows are opened on the pipe wall near the pump body end of the slurry delivery pipe. A set of traction arc plates is slidably installed in each set of cleaning windows. The side of the traction arc plate near the inside of the slurry delivery pipe is fixedly connected to a sealing ring. The sealing ring is slidably installed in the inner cavity of the slurry delivery pipe and seals the multiple sets of cleaning windows. The sealing ring is rotatably connected to the end of the impeller frame through a connector. The side of the traction arc plate near the outside of the slurry delivery pipe is fixedly connected to the traction ring. The traction ring is slidably installed on the outside of the slurry delivery pipe. A drive structure for driving the traction ring to slide linearly is provided outside the slurry delivery pipe.

[0010] The cleaning box is fixedly installed on the outside of the slurry pipe near the pump body. A cleaning structure is installed inside the cleaning box. The cleaning structure includes multiple sets of spray pipes. The multiple sets of spray pipes are fixedly installed inside the cleaning box. Multiple sets of high-pressure nozzles are installed on the end facing the slurry pipe. A rotary wheel is rotatably installed inside the spray pipe. One end of the drive shaft of the rotary wheel extends out of the spray pipe, and a first bevel gear is coaxially installed at the end.

[0011] When the cleaning window is opened by the traction arc plate and the spray pipe is spraying, the No. 1 bevel gear is connected to the impeller frame by the transmission assembly, and the No. 1 bevel gear drives the impeller frame to rotate synchronously.

[0012] As a further embodiment of the present invention, a receiving sleeve is coaxially fixedly installed inside the slurry delivery pipe, and the receiving sleeve is provided with a placement cavity for the sliding insertion of a sealing ring.

[0013] As a further embodiment of the present invention, the drive shaft is provided with a placement cavity for coaxial insertion of the rotary shaft, and multiple sets of limiting strips are fixedly installed circumferentially on the outer side of the rotary shaft. The inner wall of the placement cavity is provided with a limiting groove for sliding insertion of the limiting strips.

[0014] As a further embodiment of the present invention, the locking assembly includes a support spring, a first engagement gear ring, and a second engagement gear ring. The first engagement gear ring and the second engagement gear ring are respectively fixedly installed at the end of the rotating shaft and at the bottom of the sliding cavity of the positioning sleeve. One end of the support spring is fixedly connected to the end of the rotating shaft, and the other end is fixedly connected to the rotating seat installed at the bottom of the sliding cavity of the positioning sleeve.

[0015] As a further embodiment of the present invention, the connecting member is a connecting ring, which is fixedly installed on the end face of the impeller frame, and the connecting ring is rotatably connected to the connecting bearing provided at the end face of the sealing ring.

[0016] As a further embodiment of the present invention, the driving structure includes two sets of driving screws, which are rotatably installed at both ends of the slurry conveying pipe. Each side of the traction ring is provided with a connecting cavity for the corresponding driving screw to be inserted. The port of the connecting cavity is provided with a fixing nut that is threadedly connected to the driving screw. The two sets of driving screws are driven to rotate by a corresponding synchronous motor.

[0017] As a further embodiment of the present invention, the cleaning structure includes a liquid storage tank, which is fixedly installed on the cleaning box and connected to the corresponding spray pipes through multiple sets of infusion pipes. An infusion pump for pumping cleaning liquid is installed inside the liquid storage tank.

[0018] As a further embodiment of the present invention, the transmission structure includes a second bevel gear, a third bevel gear, a hydraulic connecting rod, and a transmission gear ring. The hydraulic connecting rod is rotatably mounted on the mounting angle plate at the end of the spray pipe. The second and third bevel gears are coaxially mounted at both ends of the hydraulic connecting rod, wherein the second bevel gear meshes with the first bevel gear. The transmission gear ring is coaxially mounted on the outside of the impeller frame. The hydraulic connecting rod is connected to the inside of the spray pipe through a hydraulic pipe.

[0019] When the spray pipe is spraying, the cleaning fluid in the spray pipe pressurizes the hydraulic connecting rod to extend, causing the No. 3 bevel gear to move closer to the transmission gear ring.

[0020] As a further embodiment of the present invention, the bottom of the cleaning box is provided with a guide plate, and the bottom of the guide plate is provided with a drain port.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] 1. After the present invention has been used for a period of time, the traction ring can be driven to slide by the drive structure on the outside of the slurry pipe. The traction ring drives the traction arc plate and the sealing ring on the inside of the slurry pipe to slide, which drives the impeller assembly that is slidably connected to the drive shaft of the drive motor to move linearly, so that it moves to the cleaning window opened on the slurry pipe to leak out, thereby facilitating personnel to clean it.

[0023] 2. The present invention provides a cleaning box on the outside of the slurry delivery pipe. When the impeller assembly moves to the cleaning window and leaks out, the impeller assembly can be cleaned by high-pressure rinsing through the spray pipe in the cleaning structure inside the cleaning box. The wastewater after cleaning can be discharged from the bottom of the cleaning box.

[0024] 3. This invention, by providing a locking component that locks with the rotating shaft within the positioning sleeve, and by rotatably installing a rotating wheel within the spray pipe and coaxially mounting a first bevel gear at the end of the rotating wheel's drive shaft, allows the locking component to unlock when the cleaning window is opened by the traction arc plate, causing the impeller assembly to move to the cleaning window and leak out. At this time, the positioning sleeve and the impeller assembly disengage from the rotating shaft and can rotate freely. Simultaneously, during the spraying operation of the spray pipe, the first bevel gear is driven by the transmission component to connect to the impeller frame, and the first bevel gear drives the impeller frame to rotate synchronously, thereby cooperating with multiple sets of spray pipes to perform cleaning operations. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an energy-saving slurry pump that is easy to clean internally, according to the present invention.

[0026] Figure 2 This is a front view of an energy-saving slurry pump that is easy to clean internally, according to the present invention.

[0027] Figure 3 This is a schematic diagram of the slurry delivery pipe in this invention.

[0028] Figure 4 This is a schematic diagram of the installation of the impeller assembly in this invention.

[0029] Figure 5 This is an internal sectional view of the transmission connecting rod in this invention.

[0030] Figure 6 This is a partial cross-sectional view of the slurry delivery pipe in this invention.

[0031] Figure 7 This is a schematic diagram of the impeller assembly in this invention.

[0032] Figure 8 This is a structural disassembly diagram of the rotary connecting rod in this invention.

[0033] Figure 9 This is a schematic diagram of the installation of the connecting ring in this invention.

[0034] In the attached diagram: 1. Slurry delivery pipe; 101. Connecting flange; 102. Cleaning window; 2. Cleaning box; 3. Storage tank; 4. Delivery pipe; 5. Drive motor; 501. Drive shaft; 6. Pump body; 7. Drive screw; 8. Traction ring; 801. Connecting cavity; 8011. Fixing nut; 9. Synchronous motor; 10. Spray pipe; 1001. High-pressure nozzle; 11. Drain outlet; 12. Impeller assembly; 1201. Impeller frame; 1202. Impeller blade; 1203. Connecting ring; 13. Traction arc plate; 14. Sealing ring; 1401. Connecting bearing; 15. Storage sleeve; 16. Rotary shaft; 1601. Limiting strip; 17. Transmission assembly; 1701. Transmission gear ring; 1702. First bevel gear; 1703. Second bevel gear; 1704. Third bevel gear; 1705. Hydraulic connecting rod; 17051. Transmission rod; 17052. Transmission sleeve; 17053. Hydraulic spring; 18. Mounting angle plate; 19. Hydraulic pipe; 20. Positioning sleeve; 21. Second meshing gear ring; 22. First meshing gear ring; 23. Fixed base; 24. Rotary column; 25. Support spring; 26. Observation window. Detailed Implementation

[0035] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0036] like Figure 1 and Figure 2 As shown, in an embodiment of the present invention, an energy-saving slurry pump that is easy to clean internally includes a drive motor 5, a pump body 6, a slurry delivery pipe 1, a cleaning box 2, and a cleaning structure.

[0037] And such as Figure 2 and Figure 7 As shown, an impeller assembly 12 is rotatably installed inside the pump body 6. The impeller assembly 12 includes an impeller frame 1201 and multiple sets of impeller blades 1202.

[0038] And such as Figure 4 As shown, the drive motor 5 is fixedly installed at one end of the pump body 6. The bottom of the impeller frame 1201 is connected to the drive shaft 501 of the drive motor 5 via a rotary connecting rod. The drive shaft 501 drives the rotary connecting rod to rotate coaxially. The rotary connecting rod includes a rotary shaft 16 and a positioning sleeve 20. The positioning sleeve 20 has a sliding cavity for the end of the rotary shaft 16 to slide into. One end of the rotary shaft 16 is slidably connected to the drive shaft 501 along its axial direction. The positioning sleeve 20 is coaxially fixedly installed at the bottom of the impeller frame 1201. It has a locking component that locks with the rotary shaft 16. The locking component is used to lock the positioning sleeve 20 and the rotary shaft 16 when the impeller assembly 12 slides into the pump body 6.

[0039] And such as Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the slurry delivery pipe 1 is fixedly installed at the other end of the pump body 6. Multiple sets of cleaning windows 102 are opened on the pipe wall of the slurry delivery pipe 1 near the pump body 6. A set of traction arc plates 13 are slidably installed in each set of cleaning windows 102. The side of the traction arc plate 13 near the inside of the slurry delivery pipe 1 is fixedly connected to the sealing ring 14. The sealing ring 14 is slidably installed in the inner cavity of the slurry delivery pipe 1. The sealing ring 14 seals the multiple sets of cleaning windows 102. The sealing ring 14 is rotatably connected to the end of the impeller frame 1201 through a connector. The side of the traction arc plate 13 near the outside of the slurry delivery pipe 1 is fixedly connected to the traction ring 8. The traction ring 8 is slidably installed on the outside of the slurry delivery pipe 1. The slurry delivery pipe 1 is provided with a drive structure for driving the traction ring 8 to slide linearly.

[0040] And such as Figure 2 and Figure 4 As shown, the cleaning box 2 is fixedly installed on the outer side of the slurry pipe 1 near the pump body 6. A cleaning structure is installed inside the cleaning box 2. The cleaning structure includes multiple sets of spray pipes 10. The multiple sets of spray pipes 10 are fixedly installed inside the cleaning box 2. Multiple sets of high-pressure nozzles 1001 are installed on the end facing the slurry pipe 1. A rotary wheel is rotatably installed inside the spray pipe 10. One end of the drive shaft of the rotary wheel extends out of the spray pipe 10, and a first bevel gear 1702 is coaxially installed at the end.

[0041] When the cleaning window 102 is moved and opened by the traction arc plate 13, and the spray pipe 10 is spraying, the first bevel gear 1702 is connected to the impeller frame 1201 by the transmission assembly 17, and the first bevel gear 1702 drives the impeller frame 1201 to rotate synchronously.

[0042] The present invention fixes a rotating connecting rod at the end of the impeller frame 1201 of the impeller assembly 12, and sets a locking component in the rotating shaft 16 and the positioning sleeve 20 inside the rotating connecting rod. When the impeller assembly 12 is housed in the pump body 6, the locking component is in a locked state, and the rotating shaft 16 and the positioning sleeve 20 remain in a fixed connection state. The drive shaft 501 can drive the rotating connecting rod to rotate synchronously, and at the same time drive the synchronous impeller assembly 12 to realize the pumping of slurry.

[0043] When cleaning the impeller assembly 12, the sealing ring 14 is driven by external force to slide linearly, causing the impeller frame 1201 to move linearly. At this time, the rotary shaft 16 extends linearly from the drive shaft 501 and maintains a rotary connection with the drive shaft 501. The locking component is in the unlocked state. After the impeller assembly 12 is completely exposed through the cleaning window 102 on the slurry pipe 1, the spray pipe 10 is turned on for spraying. During the spraying operation, the first bevel gear 1702 is driven by the transmission component 17 to connect to the impeller frame 1201, causing it to rotate synchronously and cooperate with multiple sets of spray pipes 10 for spraying and cleaning.

[0044] like Figure 6 As shown, in this embodiment of the invention, a storage sleeve 15 is coaxially fixedly installed inside the slurry pipe 1. The storage sleeve 15 is provided with a placement cavity for the sealing ring 14 to slide into. When the traction arc plate 13 is driven by the traction ring 8 to move away from the pump body 6, the impeller assembly 12 is pulled out from the pump body 6, and the sealing ring 14 slides into the storage sleeve 15 for storage.

[0045] Conversely, when the present invention continues to transport slurry, the tail end of the sealing ring 14 is inserted into the receiving sleeve 15 for storage. The receiving sleeve 15 provides stable protection for the sealing ring 14, preventing the slurry from impacting the tail end of the sealing ring 14 and causing deformation and shaking of the sealing ring 14.

[0046] like Figure 7 and Figure 8 As shown, in this embodiment of the invention, the drive shaft 501 is provided with a placement cavity for the coaxial insertion of the rotary shaft 16, and multiple sets of limiting strips 1601 are fixedly installed on the outer circumferential side of the rotary shaft 16. The inner wall of the placement cavity is provided with a limiting groove for the sliding insertion of the limiting strips 1601.

[0047] The present invention provides multiple sets of limiting strips 1601 on the outer side of the rotary shaft 16. When the drive shaft 501 rotates, the multiple sets of limiting strips 1601 drive the rotary shaft 16 to rotate synchronously. When the rotary shaft 16 slides in the axial direction of the drive shaft 501, the multiple sets of limiting strips 1601 slide along the limiting groove, thereby preventing the rotary shaft 16 from deflecting between the drive shaft 501 and the drive shaft 16.

[0048] like Figure 8As shown, in this embodiment of the invention, the locking assembly includes a support spring 25, a first engagement toothed ring 22, and a second engagement toothed ring 21. The first engagement toothed ring 22 and the second engagement toothed ring 21 are respectively fixedly installed at the end of the rotary shaft 16 and the bottom of the sliding cavity of the positioning sleeve 20. One end of the support spring 25 is fixedly connected to the end of the rotary shaft 16, and the other end is fixedly connected to the rotary seat installed at the bottom of the sliding cavity of the positioning sleeve 20. In this invention, the end of the rotary shaft 16 is provided with a placement groove for placing the support spring 25. The rotary seat includes a fixed base 23 and a rotary column 24. One end of the rotary column 24 is slidably inserted into the placement groove and fixedly connected to one end of the support spring 25, and the other end is rotatably connected to the fixed base 23.

[0049] In this invention, when the impeller assembly 12 is driven by the sealing ring 14 to be inserted into the pump body 6, the second meshing toothed ring 21 on the positioning sleeve 20 engages and locks with the first meshing toothed ring 22. At this time, the rotation of the rotary assembly can drive the positioning sleeve 20 and the impeller frame 1201 to rotate synchronously. At this time, the support spring 25 is in a compressed state. When the sealing ring 14 is pulled by force to pull the impeller assembly 12 out of the pump body 6, the support spring 25 elastically extends, causing the positioning sleeve 20 to move away from the end of the rotary shaft 16. At this time, the second meshing toothed ring 21 and the first meshing toothed ring 22 disengage, and the positioning sleeve 20 can be separated from the rotary shaft and rotate freely.

[0050] like Figure 7 and Figure 9 As shown, in this embodiment of the invention, the connecting member is a connecting ring 1203. The connecting ring 1203 is fixedly installed on the end face of the impeller frame 1201. The connecting ring 1203 is rotatably connected to the connecting bearing 1401 provided at the end face of the sealing ring 14. In this invention, the end of the connecting ring 1203 is L-shaped. A sealing ring for sealing the gap is installed at the connecting end face of the connecting ring 1203 and the sealing ring 14. Of course, the actual specifications of the connecting ring 1203 can also be replaced with other non-circular connecting rings 1203 with rotatable connection capabilities, such as a T-shaped connection structure.

[0051] In this invention, the number of cleaning windows 102 is four sets, and the number of traction arc plates 13 is also four sets. Of course, in actual design, the number of cleaning windows 102 can be increased or decreased according to the structural strength of the slurry pipe 1 and the cleaning requirements. For example, the number of cleaning windows 102 can be set to three sets or five sets, etc.

[0052] Furthermore, such as Figure 1 and Figure 2As shown in the figure, the drive structure includes two sets of drive screws 7, which are rotatably installed at both ends of the slurry pipe 1. Each side of the traction ring 8 is provided with a set of connecting cavities 801 for the corresponding drive screws 7 to be inserted. The port of the connecting cavity 801 is provided with a fixing nut 8011 that is threadedly connected to the drive screw 7. The two sets of drive screws 7 are driven to rotate by the corresponding synchronous motor 9.

[0053] When driving the traction ring 8, the present invention can be started synchronously by two sets of synchronous motors 9, which drive the two sets of drive screws 7 connected to them to rotate. The drive screws 7 are connected to the fixing nuts 8011 at the port of the connecting cavity 801 by thread transmission, which drives the traction ring 8 to move linearly along the axial direction of the slurry pipe 1.

[0054] Correspondingly, the present invention provides a communication port on one side wall of the cleaning box 2 for the traction ring 8 to slide out, and an observation window 26 on the side wall. A sealing strip is installed at the communication port to prevent the cleaning fluid from leaking out. Of course, in actual design, the drive structure can also be replaced with other components with linear drive capability, such as a telescopic cylinder group or a gear and rack drive structure, etc.

[0055] like Figure 2 and Figure 4 As shown, in this embodiment of the invention, the cleaning structure includes a liquid storage tank 3, which is fixedly installed on the cleaning box 2. It is connected to the corresponding spray pipe 10 through multiple sets of infusion pipes 4. An infusion pump for pumping cleaning liquid is installed inside the liquid storage tank 3.

[0056] In this invention, the spray pipes 10 are preferably in two sets, and the two sets of spray pipes 10 are respectively installed in the upper left and upper right corners of the cleaning box 2. When the traction ring 8 slides to the outside of the cleaning box 2, it drives the traction arc plate 13 and the sealing ring 14 to move synchronously, moving the impeller assembly 12 to the cleaning window 102 of the slurry pipe, and the liquid storage tank 3 supplies liquid to the two sets of spray pipes 10. The cleaning liquid sprayed by the high-pressure nozzles 1001 on the two sets of spray pipes 10 impacts the surface of the impeller assembly 12 and cleans the impeller assembly 12.

[0057] Furthermore, the transmission structure includes a second bevel gear 1703, a third bevel gear 1704, a hydraulic connecting rod 1705, and a transmission gear ring 1701. The hydraulic connecting rod 1705 is rotatably mounted on the mounting angle plate 18 at the end of the spray pipe 10. The second bevel gear 1703 and the third bevel gear 1704 are coaxially mounted at both ends of the hydraulic connecting rod 1705, wherein the second bevel gear 1703 meshes with the first bevel gear 1702. The transmission gear ring 1701 is coaxially mounted on the outside of the impeller frame 1201. The hydraulic connecting rod 1705 is connected to the... The spray pipe 10 is internally connected, wherein the hydraulic connecting rod 1705 includes a transmission rod 17051 and a transmission column. The transmission rod 17051 is rotatably mounted on the mounting angle plate 18, and a second bevel gear 1703 is mounted at its end. The other end of the transmission rod 17051 is sealed and slidably mounted in the transmission column. The transmission rod 17051 rotates to drive the transmission column to rotate synchronously. The bottom of the transmission rod 17051 is elastically connected to the bottom of the inner cavity of the transmission column through a hydraulic spring 17053. The inner cavity of the transmission column can store cleaning fluid. The inner cavity is connected to the spray pipe 10 through a hydraulic pipe 19.

[0058] When the spray pipe 10 is spraying, the liquid flow inside the spray pipe 10 can drive the rotary wheel to rotate. The drive shaft of the rotary wheel drives the first bevel gear 1702 to rotate, and simultaneously drives the second bevel gear 1703 and the third bevel gear 1704 to rotate. At the same time, the inner cavity of the hydraulic connecting rod 1705 is hydraulically supplied by the hydraulic pipe 19, which squeezes the hydraulic connecting rod 1705 to extend, driving the third bevel gear to move closer to the drive gear ring 1701 until the third bevel gear ring meshes with the drive gear ring 1701. At this time, the impeller frame 1201 is driven to rotate synchronously, cooperating with the spray pipe 10 to perform the cleaning operation.

[0059] Furthermore, the bottom of the cleaning tank 2 is provided with a guide plate, and a drain port 11 is opened at the bottom of the guide plate. The wastewater from the cleaning can be guided through the guide plate to the drain port 11 and discharged to the outside of the cleaning tank 2.

[0060] In summary, in this invention:

[0061] 1. After the present invention has been used for a period of time, the traction ring 8 can be driven to slide by the drive structure on the outside of the slurry pipe 1. The traction ring 8 drives the traction arc plate 13 and the sealing ring 14 on the inside of the slurry pipe 1 to slide, which drives the impeller assembly 12, which is slidably connected to the drive shaft 501 of the drive motor 5 via the rotary shaft 16, to move linearly to the cleaning window 102 opened on the slurry pipe 1 so that it can be leaked out, thereby facilitating personnel to clean it.

[0062] 2. The present invention provides a cleaning box 2 outside the slurry pipe 1. When the impeller assembly 12 moves to the cleaning window 102 and leaks out, the impeller assembly 12 can be cleaned by the spray pipe 10 in the cleaning structure inside the cleaning box 2 under high pressure, and the wastewater after cleaning can be discharged from the bottom of the cleaning box 2.

[0063] 3. The present invention provides a locking component that locks with the rotating shaft 16 inside the positioning sleeve 20, and a rotating wheel that is rotatably installed inside the spray pipe 10, with a first bevel gear 1702 coaxially installed at the end of the drive shaft of the rotating wheel. When the cleaning window 102 is moved open by the traction arc plate 13, causing the impeller assembly 12 to move to the cleaning window and leak out, the locking component unlocks, and the positioning sleeve 20 and the impeller assembly 12 disengage from the rotating shaft 16 and can rotate freely. At the same time, when the spray pipe 10 is spraying, the first bevel gear 1702 is driven by the transmission component 17 to connect to the impeller frame 1201, and the first bevel gear 1702 drives the impeller frame 1201 to rotate synchronously, thereby cooperating with multiple sets of spray pipes 10 to perform cleaning operations.

[0064] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An energy-saving slurry pump that is easy to clean internally, characterized in that, It includes a drive motor (5), a pump body (6), a slurry delivery pipe (1), a cleaning box (2), and a cleaning structure; The pump body (6) contains an impeller assembly (12) that is rotatably mounted therein. The impeller assembly (12) includes an impeller frame (1201) and multiple sets of impeller blades (1202). The drive motor (5) is fixedly installed at one end of the pump body (6). The bottom of the impeller frame (1201) is connected to the drive shaft (501) of the drive motor (5) via a rotary connecting rod. The rotary connecting rod is driven to rotate coaxially by the drive shaft (501). The rotary connecting rod includes a rotary shaft (16) and a positioning sleeve (20). The positioning sleeve (20) has a sliding cavity for the end of the rotary shaft (16) to slide into. One end of the rotary shaft (16) is slidably connected to the drive shaft (501) along its axial direction. The positioning sleeve (20) is fixedly installed coaxially at the bottom of the impeller frame (1201). It has a locking component that locks the rotary shaft (16) inside. The locking component is used to lock the positioning sleeve (20) and the rotary shaft (16) when the impeller assembly (12) slides into the pump body (6). The slurry delivery pipe (1) is fixedly installed at the other end of the pump body (6). Multiple sets of cleaning windows (102) are opened on the pipe wall of the slurry delivery pipe (1) near the pump body (6). A set of traction arc plates (13) is slidably installed in each set of cleaning windows (102). The traction arc plate (13) is fixedly connected to the sealing ring (14) on the side near the inside of the slurry delivery pipe (1). The sealing ring (14) is slidably installed in the inner cavity of the slurry delivery pipe (1). The sealing ring (14) seals the multiple sets of cleaning windows (102). The sealing ring (14) is rotatably connected to the end of the impeller frame (1201) through a connector. The traction arc plate (13) is fixedly connected to the traction ring (8) at the side near the outside of the slurry delivery pipe (1). The traction ring (8) is slidably installed on the outside of the slurry delivery pipe (1). A drive structure for driving the traction ring (8) to slide linearly is provided outside the slurry delivery pipe (1). The cleaning box (2) is fixedly installed on the outside of the slurry pipe (1) near the pump body (6). The cleaning box (2) is equipped with a cleaning structure, which includes multiple sets of spray pipes (10). The multiple sets of spray pipes (10) are fixedly installed in the cleaning box (2). Multiple sets of high-pressure nozzles (1001) are installed at the end facing the slurry pipe (1). A rotary wheel is rotatably installed in the spray pipe (10). One end of the drive shaft of the rotary wheel extends out of the spray pipe (10), and a first bevel gear (1702) is coaxially installed at the end. When the cleaning window (102) is moved and opened by the traction arc plate (13), and the spray pipe (10) is spraying, the first bevel gear (1702) is connected to the impeller frame (1201) by the transmission assembly (17), and the first bevel gear (1702) drives the impeller frame (1201) to rotate synchronously.

2. The energy-saving slurry pump with easy internal cleaning according to claim 1, characterized in that, A storage sleeve (15) is coaxially fixedly installed inside the slurry delivery pipe (1), and the storage sleeve (15) is provided with a placement cavity for the sealing ring (14) to slide into.

3. The energy-saving slurry pump according to claim 1, characterized in that, The drive shaft (501) has a placement cavity for the coaxial insertion of the rotary shaft (16). Multiple sets of limiting strips (1601) are fixedly installed on the outer circumferential side of the rotary shaft (16). The inner wall of the placement cavity has a limiting groove for the sliding insertion of the limiting strips (1601).

4. The energy-saving slurry pump with easy internal cleaning according to claim 1, characterized in that, The connecting component is a connecting ring (1203), which is fixedly installed on the end face of the impeller frame (1201). The connecting ring (1203) is rotatably connected to the connecting bearing (1401) provided at the end face of the sealing ring (14).

5. An energy-saving slurry pump with easy internal cleaning according to claim 1, characterized in that, The drive structure includes two sets of drive screws (7), which are rotatably installed at both ends of the slurry pipe (1). The two sides of the traction ring (8) are respectively provided with a set of connecting cavities (801) for the corresponding drive screws (7) to be inserted. The port of the connecting cavity (801) is provided with a fixing nut (8011) that is threadedly connected to the drive screws (7). The two sets of drive screws (7) are driven to rotate by the corresponding synchronous motors (9).

6. The energy-saving slurry pump with easy internal cleaning according to claim 1, characterized in that, The cleaning structure includes a storage tank (3), which is fixedly installed on the cleaning box (2). It is connected to the corresponding spray pipe (10) through multiple sets of infusion pipes (4). An infusion pump for pumping cleaning fluid is installed inside the storage tank (3).

7. An energy-saving slurry pump with easy internal cleaning according to claim 1, characterized in that, The transmission structure includes a second bevel gear (1703), a third bevel gear (1704), a hydraulic connecting rod (1705), and a transmission gear ring (1701). The hydraulic connecting rod (1705) is rotatably mounted on the mounting angle plate (18) at the end of the spray pipe (10). The second bevel gear (1703) and the third bevel gear (1704) are coaxially mounted at both ends of the hydraulic connecting rod (1705). The second bevel gear (1703) meshes with the first bevel gear (1702). The transmission gear ring (1701) is coaxially mounted on the outside of the impeller frame (1201). The hydraulic connecting rod (1705) is connected to the inside of the spray pipe (10) through a hydraulic pipe (19). When the spray pipe (10) is spraying, the hydraulic connecting rod (1705) is extended by the cleaning fluid in the spray pipe (10), which drives the No. 3 bevel gear to move closer to the transmission gear ring (1701).

8. An energy-saving slurry pump with easy internal cleaning according to claim 1, characterized in that, The bottom of the cleaning box (2) is provided with a guide plate, and the bottom of the guide plate is provided with a drain port (11).

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