A self-cleaning and filtering hydraulic slurry pump

Abstract

The present invention relates to the technical field of hydraulic slurry pumps, and discloses a self-cleaning and filtering hydraulic slurry pump, comprising a pump body, a U-shaped frame and a hydraulic motor, wherein the top of the pump body is fixedly mounted to the bottom of the hydraulic motor, and the top of the pump body is fixedly mounted to both ends of the bottom of the U-shaped frame. The present invention sets a filtering component, a cleaning component and a crushing component, wherein the filter screen filters larger solids, a hitting ball can prevent the solids from getting stuck on the filter screen, and a cleaning brush can clean the filter screen at the same time, and the filter screen can be self-cleaned to prevent the filter screen from being blocked. The cleaning blades rotate so that larger solids around them move around under the action of centrifugal force, and the crushing blade cuts the solids into small pieces. The cleaning blades and the crushing component are combined to filter and decelerate the solid-liquid mixture flowing through the impeller, thereby preventing the large solid-liquid mixture from hitting and impacting the impeller at high speed, avoiding impeller loss, and improving the service life of the device.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic slurry pumps, in particular to a self-cleaning and filtering hydraulic slurry pump. Background Art

[0002] A slurry pump is a pump used to transport solid-liquid mixtures. It is suitable for transporting solid-liquid mixtures with strong abrasion and containing hard solid particles. The application range of hydraulic slurry pumps is wide, such as: ore slurry, ash, gravel, etc. It is widely used in construction sites, flooded excavation sites and basements for continuous pumping of clean water or sewage, urban floods, etc. At present, the slurry pumps used in China are generally mechanical centrifugal slurry pumps. The working process of mechanical centrifugal slurry pumps is actually a process of energy transfer and conversion. The mechanical energy of the high-speed rotation of the motor is transmitted through the pump blades and converted into the pressure energy and kinetic energy of the pumped fluid. The hydraulic slurry pump has the following advantages: it is driven by a special drive shaft, oil seal and bearing-installed hydraulic motor; at the same time, it adopts a steel pump body, which is of high quality, not easy to be damaged, and has a long service life.

[0003] In the prior art, for example, the Chinese patent number CN213655260U, "A submersible high-lift flat-mouth monitorable hydraulic slurry pump", comprises a slurry pump housing of a slurry pump body, an outlet is provided at the upper left end of the slurry pump housing, a partition fixed to the inner wall of the slurry pump housing is provided inside the slurry pump housing, a mounting frame located below the partition is provided above the bottom of the slurry pump housing, the mounting frame is fixedly connected to the bottom of the slurry pump housing through supporting legs, a reciprocating mechanism is provided inside the mounting frame, an inlet is provided on the right side of the slurry pump housing, a filtering mechanism is provided inside the inlet, an external platform fixed to the side wall of the slurry pump housing is provided below the inlet, and the upper end of the external platform is fixedly connected to the bottom wall of the inlet. The utility model has a simple and reasonable structure, can keep the inlet of the slurry pump clean during the operation of the slurry pump, and avoids idling caused by the inlet being blocked, or large solid stones entering the slurry pump body to cause damage to the inside.

[0004] However, when the traditional mechanical hydraulic slurry pump is in use, there is a lack of filtering and speed reduction mechanism at the water inlet, which can easily cause large pieces of solid mixture to be blocked at the inlet pipe, causing the internal impeller to run idle and reducing the working efficiency of the hydraulic slurry pump; at the same time, the large pieces of solid-liquid mixture that enter will strike and impact the impeller blades at high speed, causing the metal blades to deform due to the striking and impact, thereby causing the internal impellers of the hydraulic slurry pump to wear, resulting in a short service life and a high failure rate, and it can no longer meet the needs of industrial use. To address the above problems, a self-cleaning and filtering hydraulic slurry pump is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a self-cleaning and filtering hydraulic slurry pump to solve the problem that the traditional mechanical hydraulic slurry pump proposed in the above background technology lacks a filtering and deceleration mechanism at the water inlet when in use, which causes the large solid-liquid mixture entering to hit and impact the impeller blades at high speed, causing the metal blades to deform due to the hitting and impact, thereby causing the internal blades of the hydraulic slurry pump to wear, have a short service life and a high failure rate, and can no longer meet the needs of industrial use. The present invention is provided with a filtering component, a cleaning component and a crushing component. The filter screen filters larger solid matter, and the striking ball can prevent the solid matter from being stuck on the filter screen. At the same time, the cleaning brush can clean the filter screen, and the filter screen can be self-cleaned to avoid clogging of the filter screen. The cleaning blades rotate so that the larger solid matter around them will move around under the action of centrifugal force. The driving motor can drive the crushing cutter rod to rotate, and the crushing cutter rod cuts the solid matter into small pieces. The cleaning blades and the crushing component are combined to filter and decelerate the solid-liquid mixture flowing through the impeller, so as to avoid the large solid-liquid mixture entering from hitting and impacting the impeller at high speed, avoid impeller loss, and improve the service life of the device.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-cleaning and filtering hydraulic slurry pump, comprising a pump body, a U-shaped frame and a hydraulic motor, wherein the top of the pump body is fixedly mounted on the bottom of the hydraulic motor, the top of the pump body is fixedly mounted on the two ends of the bottom of the U-shaped frame, a filtering device is arranged at the bottom of the pump body, the filtering device comprises a supporting bottom plate, a filtering assembly and a cleaning assembly, six crushing assemblies are evenly arranged on the top of the supporting bottom plate, the top of the crushing assembly is fixedly mounted on the bottom of the filtering assembly, and the top of the supporting bottom plate is fixedly mounted on the bottom of the cleaning assembly;

[0007] The filter assembly comprises a mounting ring, a fixed ring and a movable ring, the inner side of the top end of the mounting ring is fixedly mounted with the outer side of the fixed ring, and the inner side of the bottom end of the mounting ring is slidably mounted with the outer side of the movable ring, a plurality of compression springs are evenly arranged at the bottom of the fixed ring, the bottom of the compression springs is movably connected with the top of the movable ring, a plurality of elastic strips are evenly arranged at the bottom of the movable ring, a striking ball is arranged at the top of the elastic strip, and a filter screen is arranged at the top of the movable ring;

[0008] The cleaning assembly comprises a base, a support tube and a rotating rod, a rotating motor is arranged inside the base, the bottom of the rotating rod is movably mounted on the top of the rotating motor, and a fastening block is fixedly connected to the top of the rotating rod, the bottom of the fastening block is movably mounted on the top of the support tube, and a plurality of cleaning blades are evenly arranged on the outside of the fastening block;

[0009] The cleaning blade comprises a blade plate and a cleaning brush, the top of the blade plate is symmetrically fixedly connected with two top rods, the tops of the two top rods are fixedly installed with the bottoms of both ends of the cleaning brush, and the top of the cleaning brush is close to the bottom of the filter screen;

[0010] The crushing assembly includes a support plate, an annular shell and a mounting plate, a connecting rod is provided on one side of the support plate, the other side of the support plate is fixedly mounted on the inner side of the mounting plate, one end of the connecting rod is fixedly mounted on one side of the annular shell, a plurality of crushing cutter bars are evenly arranged on one side of the annular shell, a driving motor is provided on the outer side of the mounting plate, and one end of the driving motor is movably connected to one end of the connecting rod.

[0011] Preferably, the top of the support plate is fixedly mounted to the bottom of the mounting ring, and the bottom of the support plate is fixedly mounted to the top of the supporting base plate, and the top of the mounting ring is evenly provided with a plurality of threaded holes.

[0012] Preferably, a plurality of hexagonal holes are uniformly opened through the top of the supporting base plate, and six blocking rods are uniformly fixedly connected to the top of the supporting base plate.

[0013] Preferably, both ends of the blocking rod are fixedly mounted to both sides of the support plate, and the top of the blocking rod is fixedly mounted to the bottom of the mounting ring.

[0014] Preferably, a plurality of blades are arranged on the outer side of the blade plate, the top of the base is fixedly connected to the bottom of the support tube, and the bottom of the base is fixedly mounted to the top of the support bottom plate.

[0015] Preferably, the pump body comprises a pump casing, a water outlet pipe, a pipe connecting pipe, a mounting plate, an inlet short pipe and a volute, and the bottom inner side of the pump casing is fixedly mounted to the bottom of the inlet short pipe.

[0016] Preferably, the bottom of the volute is fixedly connected to the top of the inlet short pipe, and an impeller is arranged inside the volute.

[0017] Preferably, a plurality of mounting bolts are evenly arranged at the bottom of the pump housing, the bottom of the mounting bolts are threadedly connected to the inner side of the threaded hole, the top of the pump housing is fixedly mounted to the bottom of the mounting plate, and a plurality of fixing bolts are evenly arranged at the top of the mounting plate.

[0018] Preferably, the top of the mounting plate is fixedly mounted to the bottom of the hydraulic motor, the two ends of the bottom of the U-shaped frame are fixedly mounted to the top of the pump housing, and two lifting rods are symmetrically fixedly connected to the two ends of the top of the pump housing.

[0019] Preferably, one side of the pump housing is fixedly connected to one end of the water outlet pipe, and the top of the water outlet pipe is fixedly connected to the bottom of the pipeline connecting pipe.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, by setting a filter assembly, under the action of the filter screen, solid objects with larger volume cannot enter the pump housing. At the same time, when the solid-liquid mixture hits the filter screen, the filter screen drives the movable ring to squeeze the compression spring movement. Since the other end of the compression spring is connected to the fixed ring, the compression spring will push the movable ring to slide away from the fixed ring during the process of being squeezed and deformed and then recovering, so that the elastic strip and the hitting ball will shake, and the hitting ball will hit the bottom of the filter screen to enhance the rebound force of the filter screen, so that the filter screen will shake and prevent the solid objects in the solid-liquid mixture from being stuck on the filter screen. Then, some components in the cleaning assembly are used to clean the filter screen, wherein the rotating motor drives the cleaning blade to rotate, and the cleaning brush connected through the blade plate rotates with the cleaning blade. During the rotation of the cleaning brush, the lower surface of the filter screen is swept, thereby self-cleaning the filter screen of the filter assembly to prevent the filter screen from being blocked.

[0022] 2. In the present invention, the rotating motor in the cleaning component cooperates with the rotating rod to drive the top multiple cleaning blades to rotate in a clockwise direction. The rotation of the cleaning blades causes the solid-liquid mixture around to be affected by centrifugal force. According to the principle that the greater the mass, the greater the centrifugal force under the same conditions, the larger pieces of solid matter in the solid-liquid mixture will move around under the action of centrifugal force, and then enter the range of the crushing component. Under the action of the crushing component, the larger pieces of solid matter are crushed. The crushing knife rod in the crushing component drives the blade to rotate, and then the larger pieces of solid matter are crushed. With the cooperation of the cleaning blades and the crushing component, it is possible to effectively avoid the large pieces of solid mixture from being blocked at the inlet short pipe, and at the same time, the solid-liquid mixture flowing through the impeller is filtered and decelerated, so as to avoid the large pieces of solid-liquid mixture entering from striking and impacting the impeller at high speed, causing the impeller blades to be deformed due to the striking and impact, thereby avoiding impeller loss, reducing the failure rate of the device, and increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a self-cleaning and filtering hydraulic slurry pump according to the present invention;

[0024] Figure 2 It is a schematic diagram of the rear structure of a self-cleaning and filtering hydraulic slurry pump of the present invention;

[0025] Figure 3 It is a front cross-sectional view of a pump body of a self-cleaning and filtering hydraulic slurry pump of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a filtering device of a self-cleaning filtering hydraulic slurry pump of the present invention;

[0027] Figure 5It is a front cross-sectional view of a filtering device of a self-cleaning filtering hydraulic slurry pump of the present invention;

[0028] Figure 6 A self-cleaning and filtering hydraulic slurry pump according to the present invention Figure 5 A magnified detail of the center point A;

[0029] Figure 7 It is a structural schematic diagram of a cleaning component of a self-cleaning and filtering hydraulic slurry pump of the present invention;

[0030] Figure 8 It is a structural schematic diagram of a cleaning blade of a self-cleaning and filtering hydraulic slurry pump of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of a crushing assembly of a self-cleaning and filtering hydraulic slurry pump of the present invention;

[0032] Fig.10 The present invention is a front cross-sectional view of a crushing assembly of a self-cleaning and filtering hydraulic slurry pump.

[0033] In the figure:

[0034] 1. Pump body; 2. U-shaped frame; 3. Hydraulic motor; 4. Filter device; 10. Impeller; 11. Pump casing; 12. Water outlet pipe; 13. Pipeline pipe; 14. Mounting bolts; 15. Lifting rod; 16. Mounting plate; 17. Fixing bolt; 18. Inlet short pipe; 19. Volute; 41. Support bottom plate; 42. Hexagonal hole; 43. Blocking rod; 44. Crushing assembly; 45. Filter assembly; 46. Threaded hole; 47. Cleaning assembly; 451. Mounting ring; 452. Compression spring; 453, fixed ring; 454, movable ring; 455, elastic strip; 456, hitting ball; 457, filter screen; 471, base; 472, rotating motor; 473, rotating rod; 474, supporting cylinder; 475, cleaning blade; 4751, cleaning brush; 4752, top rod; 4753, blade; 4754, blade; 441, supporting plate; 442, connecting rod; 443, annular shell; 444, crushing knife rod; 445, mounting plate; 446, driving motor. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Reference Figure 1-10As shown: a self-cleaning and filtering hydraulic slurry pump, comprising a pump body 1, a U-shaped frame 2 and a hydraulic motor 3, the top of the pump body 1 is fixedly installed with the bottom of the hydraulic motor 3, the top of the pump body 1 is fixedly installed with both ends of the bottom of the U-shaped frame 2, the bottom of the pump body 1 is provided with a filtering device 4, the filtering device 4 comprises a supporting bottom plate 41, a filtering component 45 and a cleaning component 47, six crushing components 44 are evenly arranged on the top of the supporting bottom plate 41, the top of the crushing component 44 is fixedly installed with the bottom of the filtering component 45, and the top of the supporting bottom plate 41 is fixedly installed with the bottom of the cleaning component 47;

[0037] The filter assembly 45 includes a mounting ring 451, a fixed ring 453 and a movable ring 454. The inner side of the top end of the mounting ring 451 is fixedly mounted to the outer side of the fixed ring 453, and the inner side of the bottom end of the mounting ring 451 is slidably mounted to the outer side of the movable ring 454. A plurality of compression springs 452 are evenly arranged at the bottom of the fixed ring 453. The bottom of the compression spring 452 is movably connected to the top of the movable ring 454. A plurality of elastic strips 455 are evenly arranged at the bottom of the movable ring 454. A striking ball 456 is arranged at the top of the elastic strip 455. A filter net 457 is arranged at the top of the movable ring 454.

[0038] Furthermore, when the solid-liquid mixture enters the middle position between the support bottom plate 41 and the filter assembly 45, under the filtration of the filter mesh 457 of the filter assembly 45, solid substances with a smaller volume, that is, solid substances with a volume smaller than the aperture of the filter mesh 457, will enter the pump body 1 along with the liquid, while solid substances with a larger volume cannot enter;

[0039] When the solid-liquid mixture enters the pump body 1 through the filter screen 457, it will hit the filter screen 457. The filter screen 457 drives the movable ring 454 to squeeze the compression spring 452. Since the other end of the compression spring 452 is connected to the fixed ring 453, the compression spring 452 will push the movable ring 454 to slide away from the fixed ring 453 during the process of being squeezed, deformed and then recovered. The elastic strip 455 is elastic, so that the elastic strip 455 and the hitting ball 456 will shake, and the hitting ball 456 will hit the bottom of the filter screen 457, thereby enhancing the rebound force of the filter screen 457, causing the filter screen to shake, and preventing the solid matter in the solid-liquid mixture from being stuck on the filter screen 457.

[0040] The cleaning assembly 47 includes a base 471, a support tube 474 and a rotating rod 473. A rotating motor 472 is arranged inside the base 471. The bottom of the rotating rod 473 is movably mounted on the top of the rotating motor 472. A fastening block is fixedly connected to the top of the rotating rod 473. The bottom of the fastening block is movably mounted on the top of the support tube 474. A plurality of cleaning blades 475 are evenly arranged on the outside of the fastening block.

[0041] Furthermore, the rotating motor 472 can drive the top multiple cleaning blades 475 to rotate clockwise through the rotating rod 473. The rotation of the cleaning blades 475 causes the solid-liquid mixture around to be affected by centrifugal force. According to the principle that the greater the mass, the greater the centrifugal force under the same conditions, the larger pieces of solid matter in the solid-liquid mixture will move around under the action of centrifugal force, and then enter the range of the crushing component 44. Under the action of the crushing component 44, the larger pieces of solid matter will be crushed.

[0042] The cleaning blade 475 includes a blade plate 4753 and a cleaning brush 4751. The top of the blade plate 4753 is symmetrically fixedly connected to two top rods 4752. The tops of the two top rods 4752 are fixedly installed with the bottoms of both ends of the cleaning brush 4751. The top of the cleaning brush 4751 is close to the bottom of the filter 457.

[0043] Furthermore, while the rotating motor 472 drives the cleaning blade 475 to rotate, the cleaning brush 4751 connected through the blade 4753 rotates along with the cleaning blade 475. During the rotation process, the cleaning brush 4751 sweeps across the lower surface of the filter screen 457, thereby cleaning the filter screen 457 of the filter assembly 45 to prevent the filter screen 457 from being blocked.

[0044] The crushing assembly 44 includes a support plate 441, an annular shell 443 and a mounting plate 445. A connecting rod 442 is provided on one side of the support plate 441. The other side of the support plate 441 is fixedly mounted on the inner side of the mounting plate 445. One end of the connecting rod 442 is fixedly mounted on one side of the annular shell 443. A plurality of crushing blade rods 444 are evenly arranged on one side of the annular shell 443. A driving motor 446 is provided on the outer side of the mounting plate 445. One end of the driving motor 446 is movably connected to one end of the connecting rod 442.

[0045] Furthermore, the driving motor 446 can drive multiple crushing rods 444 to rotate through the connecting rod 442. When solid matter hits the crushing rod 444, it can be cut into small pieces of solid matter by the crushing rod 444, and then cooperate with the filtering component 45 and the cleaning component 47 in the filtering device 4, which can effectively prevent large pieces of solid mixture from being blocked in the inlet short pipe 18, and at the same time filter and reduce the speed of the solid-liquid mixture flowing through the impeller 10, so as to prevent the large pieces of solid-liquid mixture from hitting the impeller 10 at high speed and causing the impeller 10 blades to deform due to the hitting and impact, thereby avoiding the loss of the impeller 10, reducing the failure rate of the device, and increasing the service life of the device.

[0046] like Figure 4 , Figure 5 and Fig. 9As shown, the top of the support plate 441 is fixedly installed with the bottom of the mounting ring 451, and the bottom of the support plate 441 is fixedly installed with the top of the support base plate 41. A plurality of threaded holes 46 are evenly arranged on the top of the mounting ring 451. The threaded holes 46 are used to fix the mounting ring 451 and the pump housing 11. The support base plate 41 facilitates the stable placement of the hydraulic slurry pump device.

[0047] like Figure 4 As shown, a plurality of hexagonal holes 42 are uniformly opened on the top of the support bottom plate 41, and six blocking rods 43 are uniformly fixedly connected to the top of the support bottom plate 41, with gaps left between the blocking rods 43, so that the blocking rods 43 can prevent excessively large solid mixtures from entering.

[0048] like Figure 4-6 As shown, the two ends of the blocking rod 43 are fixedly installed on the two sides of the support plate 441, and the top of the blocking rod 43 is fixedly installed on the bottom of the mounting ring 451. The blocking rod 43 can prevent excessive solid mixture from entering, and the support plate 441 plays the role of supporting and fixing the mounting ring 451.

[0049] like Figure 4 , Figure 7 and Figure 8 As shown, a plurality of blades 4754 are arranged on the outer side of the blade plate 4753, the top of the base 471 is fixedly connected to the bottom of the support tube 474, the bottom of the base 471 is fixedly installed to the top of the support base plate 41, and the blades 4754 can break up some large pieces of solid matter while rotating, the base 471 is used to fix the rotating motor 472, and the support tube 474 is used to support and fix the top cleaning blade 475.

[0050] like Figure 1-3 As shown, the pump body 1 includes a pump casing 11, a water outlet pipe 12, a pipe connecting pipe 13, a mounting plate 16, an inlet short pipe 18 and a volute 19. The bottom inner side of the pump casing 11 is fixedly installed with the bottom of the inlet short pipe 18. The hydraulic motor 3 can rotate the impeller 10 inside the pump body 1 to transport the solid-liquid mixture at the bottom into the volute 19, and then use centrifugal force, that is, the impeller 10 in the pump casing 11 rotates, to input the solid-liquid mixture at a high speed into the water outlet pipe 12, and then discharge it outward through the water outlet pipe 12 and the pipe connecting pipe 13.

[0051] like Figure 1-3 As shown, the bottom of the volute 19 is fixedly connected to the top of the inlet short pipe 18, and an impeller 10 is arranged inside the volute 19. The hydraulic motor 3 can make the impeller 10 inside the pump body 1 rotate to transport the solid-liquid mixture at the bottom into the volute 19.

[0052] like Figure 1-4As shown, a plurality of mounting bolts 14 are evenly arranged at the bottom of the pump casing 11, and the bottom of the mounting bolts 14 is threadedly connected to the inner side of the threaded hole 46. The top of the pump casing 11 is fixedly installed to the bottom of the mounting plate 16, and a plurality of fixing bolts 17 are evenly arranged at the top of the mounting plate 16. The mounting bolts 14 are used to be threadedly connected and fixed to the threaded hole 46 for installing the pump casing 11 and the mounting ring 451.

[0053] like Figure 1-3 As shown, the top of the mounting plate 16 is fixedly mounted to the bottom of the hydraulic motor 3, the bottom ends of the U-shaped frame 2 are fixedly mounted to the top of the pump housing 11, and the top ends of the pump housing 11 are symmetrically fixedly connected with two lifting rods 15. The lifting rods 15 facilitate the transportation of the mobile hydraulic slurry pump device, and the U-shaped frame 2 protects the hydraulic motor 3.

[0054] like Figure 1-3 As shown, one side of the pump housing 11 is fixedly connected to one end of the water outlet pipe 12, and the top of the water outlet pipe 12 is fixedly connected to the bottom of the pipe connecting pipe 13. The pipe connecting pipe 13 is used to connect to the conveying pipe to facilitate the conveying of the solid-liquid mixture.

[0055] In the present invention, when the hydraulic slurry pump is in use, the device needs to be moved by the lifting rod 15 and placed at the position of the solid-liquid mixture to be transported, so that the solid-liquid mixture can reach the bottom of the pump body 1, and the delivery pipe and the pipeline connecting pipe 13 are connected. After confirming that the preparation work is completed, the hydraulic motor 3 is turned on, and the hydraulic motor 3 can make the impeller 10 inside the pump body 1 rotate to transport the solid-liquid mixture at the bottom into the volute 19, and then use the centrifugal force, that is, the impeller 10 in the pump housing 11 rotates, and the mixed solid and liquid are input into the outlet pipe 12 at high speed, and then discharged outward through the outlet pipe 12 and the pipeline connecting pipe 13; the bottom of the pump body 1 is a filtering device 4. Before the impeller 10 transports the solid-liquid mixture to the pump housing 11, The solid-liquid mixture needs to pass through the filter device 4 first. The filter device 4 is mainly composed of a supporting bottom plate 41, six blocking rods 43, six crushing components 44, a filter component 45 and a cleaning component 47. The solid-liquid mixture needs to pass through the six blocking rods 43 to enter the inner position of the crushing component 44. There are gaps between the blocking rods 43. The blocking rods 43 can prevent too large solid mixture from entering; when the solid-liquid mixture enters the middle position between the supporting bottom plate 41 and the filter component 45, under the filtration of the filter net 457 of the filter component 45, the solid matter with a volume smaller than the aperture size of the filter net 457 enters the volute 19 with the liquid, and the solid matter with a larger volume cannot enter; due to the base 471 The internal rotating motor 472 rotates, and the rotating motor 472 can drive the top multiple cleaning blades 475 to rotate clockwise through the rotating rod 473. The rotation of the cleaning blades 475 causes the solid-liquid mixture around to be affected by centrifugal force. According to the principle that the greater the mass, the greater the centrifugal force under the same conditions, the larger pieces of solid matter in the solid-liquid mixture will move around under the action of centrifugal force. At the same time, multiple blades 4754 are arranged on the outer side of the blade plate 4753 of the cleaning blade 475. The blades 4754 can break some large pieces of solid matter while rotating. There are six breaking components 44 at the surrounding positions. The driving motor 446 of the breaking component 44 can be driven by the connecting rod 442. The plurality of crushing blades 444 rotate, and when the solid matter hits the crushing blades 444, it can be cut into small pieces by the crushing blades 444. The cleaning blades 475 and the crushing assembly 44 are combined to crush the solid matter entering the pump casing 11 into small pieces, so that it can be transported to the pump casing 11 and the volute 19 along with the liquid, effectively preventing large pieces of solid mixture from being blocked at the inlet short pipe 18, and filtering and slowing down the solid-liquid mixture flowing through the impeller 10, preventing the large pieces of solid-liquid mixture from striking and impacting the impeller 10 at high speed, causing the impeller 10 blades to deform due to the striking and impact, avoiding the loss of the impeller 10, reducing the failure rate of the device, and increasing the service life of the device;At the same time, when the solid-liquid mixture passes through the filter screen 457 and enters the volute 19, it will hit the filter screen 457, and the filter screen 457 drives the movable ring 454 to squeeze the compression spring 452 upward. When the compression spring 452 is squeezed and deformed and then recovers, it will push the movable ring 454 to slide downward. The elastic strip 455 is elastic, so that the elastic strip 455 and the hitting ball 456 shake, so that the hitting ball 456 will hit the bottom of the filter screen 457 to prevent the solid matter in the solid-liquid mixture from being stuck on the filter screen 457. At the same time, when the cleaning blade 475 rotates, the top cleaning brush 4751 can clean the filter screen 457, and the filter screen 457 of the filter assembly 45 can be self-cleaned to prevent the filter screen 457 from being blocked. ;

[0056] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-cleaning and filtering hydraulic slurry pump, comprising a pump body (1), a U-shaped frame (2) and a hydraulic motor (3), wherein the top of the pump body (1) is fixedly mounted to the bottom of the hydraulic motor (3), and the top of the pump body (1) is fixedly mounted to both ends of the bottom of the U-shaped frame (2), characterized in that: A filter device (4) is arranged at the bottom of the pump body (1), the filter device (4) comprising a supporting bottom plate (41), a filter assembly (45) and a cleaning assembly (47), six crushing assemblies (44) are evenly arranged on the top of the supporting bottom plate (41), the top of the crushing assembly (44) is fixedly mounted to the bottom of the filter assembly (45), and the top of the supporting bottom plate (41) is fixedly mounted to the bottom of the cleaning assembly (47); The filter assembly (45) comprises a mounting ring (451), a fixed ring (453) and a movable ring (454); the inner side of the top end of the mounting ring (451) is fixedly mounted to the outer side of the fixed ring (453), and the inner side of the bottom end of the mounting ring (451) is slidably mounted to the outer side of the movable ring (454); a plurality of compression springs (452) are evenly arranged at the bottom of the fixed ring (453); the bottom of the compression springs (452) are movably connected to the top of the movable ring (454); a plurality of elastic strips (455) are evenly arranged at the bottom of the movable ring (454); a striking ball (456) is arranged at the top of the elastic strips (455); and a filter net (457) is arranged at the top of the movable ring (454); The cleaning assembly (47) comprises a base (471), a support tube (474) and a rotating rod (473); a rotating motor (472) is arranged inside the base (471); the bottom of the rotating rod (473) is movably mounted on the top of the rotating motor (472); a fastening block is fixedly connected to the top of the rotating rod (473); the bottom of the fastening block is movably mounted on the top of the support tube (474); and a plurality of cleaning blades (475) are evenly arranged on the outside of the fastening block; The cleaning blade (475) comprises a blade plate (4753) and a cleaning brush (4751); the top of the blade plate (4753) is symmetrically fixedly connected to two top rods (4752); the tops of the two top rods (4752) are fixedly mounted to the bottoms of both ends of the cleaning brush (4751); and the top of the cleaning brush (4751) is close to the bottom of the filter screen (457); The crushing assembly (44) comprises a support plate (441), an annular shell (443) and a mounting plate (445); a connecting rod (442) is arranged on one side of the support plate (441); the other side of the support plate (441) is fixedly mounted on the inner side of the mounting plate (445); one end of the connecting rod (442) is fixedly mounted on one side of the annular shell (443); a plurality of crushing blade rods (444) are evenly arranged on one side of the annular shell (443); a driving motor (446) is arranged on the outer side of the mounting plate (445); one end of the driving motor (446) is movably connected to one end of the connecting rod (442); The top of the support plate (441) is fixedly mounted to the bottom of the mounting ring (451), and the bottom of the support plate (441) is fixedly mounted to the top of the supporting bottom plate (41), and the top of the mounting ring (451) is evenly provided with a plurality of threaded holes (46); A plurality of hexagonal holes (42) are uniformly penetrated through the top of the supporting bottom plate (41), and six blocking rods (43) are uniformly fixedly connected to the top of the supporting bottom plate (41).

2. The self-cleaning and filtering hydraulic slurry pump according to claim 1, characterized in that: The two ends of the blocking rod (43) are fixedly mounted to the two sides of the support plate (441), and the top of the blocking rod (43) is fixedly mounted to the bottom of the mounting ring (451).

3. The self-cleaning and filtering hydraulic slurry pump according to claim 1, characterized in that: A plurality of blades (4754) are arranged on the outer side of the blade plate (4753); the top of the base (471) is fixedly connected to the bottom of the support tube (474); and the bottom of the base (471) is fixedly mounted to the top of the support bottom plate (41).

4. The self-cleaning and filtering hydraulic slurry pump according to claim 1, characterized in that: The pump body (1) comprises a pump casing (11), a water outlet pipe (12), a pipe connecting pipe (13), a mounting plate (16), an inlet short pipe (18) and a volute (19), wherein the inner side of the bottom of the pump casing (11) is fixedly mounted to the bottom of the inlet short pipe (18).

5. The self-cleaning and filtering hydraulic slurry pump according to claim 4, characterized in that: The bottom of the volute (19) is fixedly connected to the top of the inlet short pipe (18), and an impeller (10) is arranged inside the volute (19).

6. The self-cleaning and filtering hydraulic slurry pump according to claim 4, characterized in that: A plurality of mounting bolts (14) are evenly arranged at the bottom of the pump housing (11), the bottom of the mounting bolts (14) being threadedly connected to the inner side of the threaded hole (46), the top of the pump housing (11) being fixedly mounted to the bottom of the mounting plate (16), and a plurality of fixing bolts (17) are evenly arranged at the top of the mounting plate (16).

7. The self-cleaning and filtering hydraulic slurry pump according to claim 4, characterized in that: The top of the mounting plate (16) is fixedly mounted to the bottom of the hydraulic motor (3), the two ends of the bottom of the U-shaped frame (2) are fixedly mounted to the top of the pump housing (11), and two lifting rods (15) are symmetrically fixedly connected to the two ends of the top of the pump housing (11).

8. The self-cleaning and filtering hydraulic slurry pump according to claim 4, characterized in that: One side of the pump casing (11) is fixedly connected to one end of a water outlet pipe (12), and the top of the water outlet pipe (12) is fixedly connected to the bottom of a pipeline connecting pipe (13).

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