Large-particle high-pass cross pump and manufacturing method

Abstract

The invention discloses a large-particle high-pass cross pump and a manufacturing method, the large-particle high-pass cross pump comprises a pump shell, the liquid inlet end of the pump shell is provided with an inlet flange, the liquid outlet end of the pump shell is connected with an outlet flange through a liquid outlet pipe, the large-particle high-pass cross pump further comprises a cross-shaped impeller, the cross-shaped impeller is rotatably connected in the pump shell, and the center of the cross-shaped impeller is coaxial with the center of the inlet flange; when the cross-shaped impeller rotates in the pump shell to generate vortex, low pressure is generated in the center of the side, close to the inlet flange, of the cross-shaped impeller, self-suction force is formed and used for sucking liquid at the inlet flange into the pump shell, and the liquid is output through the liquid outlet pipe after being centrifuged. The manufacturing method comprises the steps of pump body machining, cross-shaped impeller machining, shell fixing, sealing cover and supporting ring machining and cross pump assembling. The manufacturing process is simple in step, synchronous manufacturing of the multiple cross-shaped impellers can be met, the machining and manufacturing efficiency of the cross-shaped pump is improved, the assembling precision of the cross-shaped pump can be improved, and the requirement of flow line production is met.

Description

Technical Field

[0001] This invention relates to the field of pump technology, and in particular to a high-throughput cross pump for large particles and its manufacturing method. Background Technology

[0002] In mining engineering, river dredging, and industrial solid-liquid mixed transportation, a common characteristic is that the medium often contains a large number of solid particles, fibrous materials, and other impurities, forming an extremely complex multiphase flow transportation environment. In the mining field, especially under the conditions of "three soft coal seams" in underground coal mines, the transported medium contains a high concentration of coal particles and rock fragments; in river dredging scenarios, the pumped medium is a mixture of viscous silt and underwater garbage; and in industrial solid-liquid mixed transportation processes, it is necessary to handle high-concentration slurries and complex fluids containing large-sized solids.

[0003] Traditional pumps face severe technical challenges under these demanding operating conditions. In particular, when the particle size of solid particles in the medium exceeds the conventional limit, or when it contains long fibrous materials or flexible materials, it is very easy to cause malfunctions such as flow channel blockage and jamming of moving parts, resulting in a sharp drop in equipment operating efficiency and even shutdown accidents, which seriously affect the continuity of production. At the same time, the impeller manufacturing process of traditional pumps is complex, which not only increases the manufacturing difficulty but also affects the processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a high-throughput cross pump for large particles and a manufacturing method that addresses the shortcomings of existing technologies. This cross pump not only improves the strength and stability of the entire cross-shaped impeller but also reduces damage caused by particulate impurities in the liquid impacting the impeller. Its large space prevents blockages, enhancing the overall stability and reliability of the pump during operation. It can meet the media conveying requirements in fields such as mining engineering, river dredging, and industrial solid-liquid mixed transport. The manufacturing method is simple, allowing for the simultaneous manufacturing of multiple cross-shaped impellers, improving the pump's processing efficiency, and enhancing assembly precision. This ensures the pump meets the media conveying requirements in mining engineering, river dredging, and industrial solid-liquid mixed transport.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A high-throughput cross-shaped pump for large particles includes a pump casing with an inlet flange at the inlet end and an outlet flange connected to the outlet end of the pump casing via an outlet pipe. The pump casing is characterized by further including a cross-shaped impeller rotatably connected inside the pump casing. The center of the cross-shaped impeller is coaxial with the center of the inlet flange. When the cross-shaped impeller rotates within the pump casing, generating a vortex, a low pressure is generated at the center of the side of the cross-shaped impeller closest to the inlet flange, creating a self-priming force to draw liquid from the inlet flange into the pump casing. After centrifugation, the liquid is output through the outlet pipe. The cross-shaped impeller includes an end cover with an opening on one side and components evenly distributed along the outer circumference of the end cover. The impeller blades are strip-shaped with adjacent blades perpendicular to each other. The distances between the blade tips and the top and bottom of the pump body are h1 and h3, respectively, and the distances between the blade tips and the sides of the pump body are h2 and h4, respectively, where h1 < h2 < h3 < h4. This cross pump not only improves the strength and stability of the entire cross-shaped impeller, but also reduces the damage caused by particulate impurities in the liquid impacting the cross-shaped impeller. The large space prevents blockages, improving the stability and reliability of the entire cross pump during operation. It can meet the medium transportation requirements in fields such as mining engineering, river dredging, and industrial solid-liquid mixed transportation.

[0006] It also includes a drive motor, a fixed housing, and a base. The pump housing is connected to the drive motor through the fixed housing. Both the pump housing and the drive motor are mounted on the base. A sealing cover is provided on the pump housing on the opposite side of the inlet flange. The sealing cover abuts against the fixed housing. The output shaft of the drive motor passes through the sealing cover and is connected to the cross-shaped impeller through a connecting shaft. It is connected to the connecting shaft through the cross-shaped impeller by fastening screws, so as to realize the fixed connection between the cross-shaped impeller and the connecting shaft. A support ring is provided between the fixed housing and the sealing cover. A bearing is provided between the support ring, the sealing cover, and the connecting shaft.

[0007] The manufacturing method of the large particle high-throughput cross pump described above is characterized by comprising the following steps: S1, Pump body machining a. First, determine the dimensions of the pump body according to the design requirements, and form the required pump body by casting. The pump body has an inlet flange integrally formed along the horizontal direction, and an opening is provided on the side of the pump body opposite to the inlet flange. An outlet flange is integrally formed on one side of the pump body along the vertical tangent direction through the liquid outlet pipe. b. Then, the inner wall of the pump body is ground and polished, and the inner wall of the pump body has a spiral structure. c. Next, make the first mounting hole along the side of the pump body away from the inlet flange, and make the second mounting hole along the support base at the bottom of the pump body. S2, Cross-shaped impeller machining a. First, add casting liquid and coolant to the storage tank and coolant storage tank on the base plate respectively, and control the temperature of the storage tank and coolant storage tank. Connect the storage tank and coolant storage tank to the injection assembly on the injection mechanism through the casting pipe and water supply pipe respectively. b. Then, the upper module is moved downward by the lifting mechanism, so that the upper module is close to the lower mold on the processing table until the upper module and the lower mold are completely in contact. c. Next, start the liquid injection mechanism, bring each liquid injection component close to the upper module and connect it to the upper module. First, inject the liquid into the casting cavity of the lower mold through the casting pipe through the upper module until the liquid level in the casting cavity reaches the upper module, then stop the injection. Then, inject coolant into each lower mold through the water supply pipe until the liquid in the casting cavity forms a cross-shaped impeller in the casting groove. d. Start the injection mechanism to detach from the upper mold and rise to the required height position. Then start the lifting mechanism to detach the upper mold from the lower mold. Next, start the push mechanism on the lower mold to detach the cross-shaped impeller from the pouring cavity. e. Finally, the removed cross-shaped impeller is ground and shot blasted. S3. Machining of the fixed housing, sealing cover and support ring a. First, determine the dimensions of the fixed housing based on the dimensions of the pump body, and then process the corresponding fixed housing; b. Then, based on the dimensions of the fixed housing and pump body, process suitable sealing caps and support rings; S4, Cross Pump Assembly a. First, install the cross-shaped impeller onto the end of the connecting shaft using a positioning key and fastening screws. Then, pass the connecting shaft horizontally through the shaft hole on the sealing cover. Install the bearing between the sealing cover and the connecting shaft. Finally, place the cross-shaped impeller into the pump body to fix the sealing cover to the pump body. b. Then install the support ring on the outside of the sealing cover, connect it to the fixed housing, and install the fixed housing and pump body together on the base; c. Next, select a suitable drive motor and install it on the base, so that the output shaft of the drive motor is connected to the end of the connecting shaft through a coupling.

[0008] This manufacturing method has simple steps and can not only meet the requirements of simultaneous manufacturing of multiple cross-shaped impellers, thus improving the processing and manufacturing efficiency of cross pumps, but also improve the assembly accuracy of cross pumps, meeting the requirements of assembly line production.

[0009] Further, the injection mechanism in step S2a includes a second guide rod, a first horizontal beam, a second horizontal beam, a first crossbeam, a second crossbeam, a first drive assembly, a second drive assembly, and a third hydraulic cylinder. The third hydraulic cylinder is fixedly connected to the processing table via a third fixed block and connected to the first horizontal beam via a third piston rod. The top end of the second guide rod is fixed to the first horizontal beam, and the bottom end of the second guide rod vertically penetrates the second fixed block and moves up and down along the second fixed block. The second fixed block is located on the side of the processing table. The second horizontal beam is fixedly connected to the inner side of the first horizontal beam. First drive assemblies are provided on both the first and second horizontal beams. A first crossbeam connects the two first drive assemblies on the first horizontal beam and the two crossbeams on the second horizontal beam. A second crossbeam connects the first drive components, and the second drive components are respectively mounted on the first and second crossbeams. The second drive components drive the injection component to move along the first and second crossbeams. A third hydraulic cylinder can drive the first horizontal beam to move up and down via the third piston rod, which in turn drives the second horizontal beam, the first crossbeam, the second crossbeam, the first drive components, and the second drive components to move up and down synchronously, meeting the height adjustment requirements of the injection component. The second guide rod improves the stability and reliability of the entire injection mechanism during the up and down movement. The first drive components can drive the first and second crossbeams to move horizontally, and the second drive components can drive the injection component to move along the first and second crossbeams, meeting the delivery requirements of the casting fluid and coolant, and improving the casting quality.

[0010] Furthermore, both the first drive assembly and the second drive assembly include a motor, a baffle, and a screw. The motor is rotatably connected to the baffle via the screw. The motor drives the screw to rotate, which in turn drives the first crossbeam, the second crossbeam, and the liquid injection assembly to move, thus meeting the movement requirements of the pouring pipe and the water delivery pipe.

[0011] Furthermore, the liquid injection assembly in step S2a includes a slider, a booster block, an L-shaped plate, and a bent pipe. The slider is slidably connected to the first and second crossbeams. The booster block is located on the top of the slider and connected to the screw. The L-shaped plate is located at the bottom of the slider. The bent pipe is installed on the L-shaped plate. The screw can drive the booster block to move back and forth, which in turn can drive the slider to move back and forth along the first and second crossbeams. The L-shaped plate improves the stability and reliability of the bent pipe installation. The bent pipe facilitates the connection between the pouring pipe and the water supply pipe and the pouring joint and the coolant joint, respectively.

[0012] Furthermore, in step S2 process b, the upper mold assembly includes upper molds that correspond one-to-one with the lower molds. Adjacent upper molds are fixedly connected by connecting rods, and reinforcing rods are provided between the connecting rods. A cross block is provided on the bottom surface of the upper mold, and the cross block matches the casting cavity. A casting joint is provided on the upper mold, and the casting joint passes through the cross block to connect to the casting cavity. The connecting rods and reinforcing rods improve the connection strength and stability between the upper molds. The cross block can cooperate with the casting cavity for casting and molding of a cross-shaped impeller.

[0013] Furthermore, in step S2 process b, the lower mold is provided with a coolant through hole and a positioning hole, and the upper mold is provided with a coolant connector and a positioning pin. The coolant connector matches the coolant through hole, and the positioning pin matches the positioning hole. The coolant connector facilitates communication with the coolant through hole and is used to inject coolant into the lower mold to improve the forming efficiency of the cross-shaped impeller. The positioning hole and positioning pin can improve the fitting accuracy between the upper mold and the lower mold and avoid misalignment that would affect the casting quality.

[0014] Furthermore, the lifting mechanism in step S2 b includes a lifting block, a first guide rod, and a second hydraulic cylinder. The lifting block is located on the outer edge of each upper mold. The first guide rod vertically passes through the lifting block, and the bottom end of the first guide rod is connected to the processing table through a first fixing block. A clamping block is provided on the side of the first fixing block. The second hydraulic cylinder is detachably connected to the clamping block. The second hydraulic cylinder is connected to the lifting block through a second piston rod. The second hydraulic cylinder drives the lifting block to move up and down through the second piston rod, thereby driving the entire upper mold assembly to move up and down, meeting the movement requirements of each upper mold. The first guide rod improves the stability and reliability of the upper mold assembly during movement.

[0015] Furthermore, the pushing mechanism in step S2 process d includes a core and a first hydraulic cylinder. The core moves up and down along the inside of the casting cavity. The first hydraulic cylinder is located on the bottom surface of the processing table. The first hydraulic cylinder is connected to the core through a first piston rod. The core not only facilitates the casting and molding of the cross-shaped impeller, but also can move along the casting cavity through the first piston rod under the action of the first hydraulic cylinder, thus meeting the demolding requirements of the cross-shaped impeller.

[0016] The present invention, by adopting the above-described technical solution, has the following beneficial effects: 1. The cross pump of the present invention can not only improve the strength and stability of the entire cross-shaped impeller, but also reduce the damage caused by particulate impurities in the liquid impacting the cross-shaped impeller. It has a large space and will not cause blockage, thus improving the stability and reliability of the entire cross pump during operation. It can meet the medium transportation requirements in fields such as mining engineering, river dredging and industrial solid-liquid mixed transportation.

[0017] 2. The manufacturing method of the present invention has simple steps, which can not only meet the requirements of synchronous manufacturing of multiple cross-shaped impellers and improve the processing and manufacturing efficiency of cross pumps, but also improve the assembly accuracy of cross pumps and meet the requirements of assembly line production.

[0018] 3. The third hydraulic cylinder can drive the first horizontal beam to move up and down via the third piston rod, which in turn can drive the second horizontal beam, the first crossbeam, the second crossbeam, the first drive assembly, and the second drive assembly to move up and down synchronously, thus meeting the height adjustment requirements of the injection assembly. The second guide rod improves the stability and reliability of the entire injection mechanism during the up and down movement. The first drive assembly can drive the first crossbeam and the second crossbeam to move horizontally, and the second drive assembly can drive the injection assembly to move along the first crossbeam and the second crossbeam, thus meeting the delivery requirements of the casting fluid and coolant and improving the casting quality.

[0019] 4. The second hydraulic cylinder drives the lifting block to move up and down via the second piston rod, which in turn drives the entire upper module to move up and down, meeting the movement requirements of each upper mold. The first guide rod improves the stability and reliability of the upper module during movement.

[0020] 5. The core not only facilitates the casting and molding of the cross-shaped impeller, but also can move along the casting cavity via the first piston rod under the action of the first hydraulic cylinder, thus meeting the demolding requirements of the cross-shaped impeller. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the cross pump structure in the large particle high-throughput cross pump and its manufacturing method of the present invention; Figure 2 This is a schematic diagram showing the connection between the cross-shaped impeller and the pump body in this invention; Figure 3 for Figure 2 Schematic diagram of the structure in the AA direction; Figure 4 for Figure 2 Schematic diagram of the structure in the middle BB direction; Figure 5 This is a flowchart of the cross pump manufacturing method in this invention; Figure 6 This is a schematic diagram of the cross-shaped impeller casting equipment of the present invention; Figure 7 This is a schematic diagram of the lower mold in this invention; Figure 8 for Figure 7 Schematic diagram of the structure in the C-direction; Figure 9 This is a schematic diagram showing the connection between the upper module and the lifting mechanism in this invention; Figure 10 for Figure 9 Schematic diagram of the structure in the D direction; Figure 11 This is a schematic diagram showing the connection between the injection mechanism and the injection assembly in this invention; Figure 12 This is a schematic diagram of the liquid injection assembly in this invention.

[0022] Wherein: 1-Drive motor; 2-Fixed housing; 3-Base; 4-Pump body; 5-Inlet flange; 6-Outlet flange; 7-First mounting hole; 8-Support base; 9-Second mounting hole; 10-Outlet pipe; 11-Sealing cover; 12-Support ring; 13-Cross-shaped impeller; 14-Fasting screw; 15-Positioning key; 16-Bearing; 17-Connecting shaft; 18-End cover; 19-Blade; 20-Inner wall; 21-Processing table; 22-Base plate; 23-Storage box; 24-Coolant storage box; 25-Lower mold; 26-Upper mold assembly; 27-Lifting mechanism; 28-Injection mechanism; 29-Pouring cavity; 30-Core; 31-Coolant through hole; 32-Positioning hole; 33-First hydraulic cylinder; 34 35-First piston rod; 36-Upper mold; 37-Connecting rod; 38-Reinforcing rod; 39-Pour joint; 40-Coolant joint; 41-Lifting block; 42-First fixing block; 43-First guide rod; 44-Clamping block; 45-Second hydraulic cylinder; 46-Second piston rod; 47-Cross block; 48-Positioning pin; 49-Second fixing block; 50-First horizontal beam; 51-Second horizontal beam; 52-First crossbeam; 53-Second crossbeam; 54-Injection assembly; 55-Motor; 56-Baffle; 57-Screw; 58-Slider; 59-Pushing block; 60-L-shaped plate; 61-Bend; 62-Third fixing block; 63-Third hydraulic cylinder; 64-Third piston rod. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0026] like Figures 1 to 4As shown, this invention provides a high-throughput cross-shaped pump for large particles, comprising: a pump housing 4, a drive motor 1, a fixed housing 2, and a base 3. The pump housing 4 is connected to the drive motor 1 through the fixed housing 2. Both the pump housing 4 and the drive motor 1 are mounted on the base 3. The base 3 improves the stability and reliability of the drive motor 1 and the pump housing 4 during installation.

[0027] The pump housing 4 is provided with a first mounting hole 7, and a first fastener passes through the first mounting hole 7 to connect to the fixed housing 2, thereby realizing a fixed connection between the pump housing 4 and the fixed housing 2.

[0028] The bottom of the pump housing 4 is provided with a support base 8, and the support base 8 is provided with a second mounting hole 9. A second fastener passes through the second mounting hole 9 and is connected to the base 3 to achieve a fixed connection between the pump housing 4 and the base 3.

[0029] The pump casing 4 has an inlet flange 5 at the inlet end and an outlet flange 6 at the outlet end via an outlet pipe 10.

[0030] A sealing cover 11 is provided on the pump casing 4 on the opposite side of the inlet flange 5. The sealing cover 11 abuts against the fixed housing 2, which facilitates the liquid to flow out through the outlet pipe 10 under the action of the cross-shaped impeller 13 after entering the pump body, thereby improving the liquid delivery efficiency.

[0031] The output shaft of the drive motor 1 passes through the sealing cover 11 via the connecting shaft 17 and is connected to the cross-shaped impeller 13. The fastening screw 14 passes through the cross-shaped impeller 13 and is connected to the connecting shaft 17, thereby achieving a fixed connection between the cross-shaped impeller 13 and the connecting shaft 17 and improving the connection strength and stability between the cross-shaped impeller 13 and the connecting shaft 17.

[0032] A support ring 12 is provided between the fixed housing 2 and the sealing cover 11. A bearing 16 is provided between the support ring 12, the sealing cover 11 and the connecting shaft 17 to ensure that the connecting shaft 17 can rotate stably and further improve the stability of the cross-shaped impeller 13 during operation.

[0033] The cross pump also includes a cross-shaped impeller 13, which is rotatably connected inside the pump casing 4. The center of the cross-shaped impeller 13 is coaxial with the center of the inlet flange 5. When the cross-shaped impeller 13 rotates inside the pump casing 4 to generate vortices, a low pressure is generated at the center of the side of the cross-shaped impeller 13 near the inlet flange 5, forming a self-priming force to draw the liquid at the inlet flange 5 into the pump casing 4. After centrifugation, the liquid is output through the outlet pipe 10.

[0034] The cross-shaped impeller 13 includes an end cap 18 with an opening on one side and blades 19 evenly distributed along the outer circumference of the end cap 18. The blades 19 have a strip-like structure, and adjacent blades 19 are perpendicular to each other. This perpendicular blade design increases the space between adjacent blades 19, preventing blockage caused by larger particles in the liquid. The strip-like structure of the blades 19 also improves the overall strength of the blades 19, preventing damage caused by particle impact. A positioning key 15 is provided between the end cap 18 and the connecting shaft 17 to improve the stability and reliability of the connection between the cross-shaped impeller 13 and the connecting shaft 17.

[0035] The distances between the end of the blade 19 and the top and bottom of the pump casing 4 are h1 and h3, respectively, and the distances between the end of the blade 19 and the two sides of the pump casing 4 are h2 and h4, respectively, where h1 < h2 < h3 < h4. This facilitates the liquid being drawn into the pump casing 4 and then discharged from the outlet pipe 10, thereby improving the working efficiency of the cross pump.

[0036] The inner wall 20 of the pump casing 4 can be made of an Archimedes spiral to improve the efficiency of liquid delivery.

[0037] like Figures 5 to 12 As shown, this invention provides a method for manufacturing a high-throughput cross-pump for large particles, comprising the following steps: S1, Pump body machining a. First, determine the dimensions of the pump body 4 according to the design requirements, and form the required pump body 4 by casting. The pump body 4 has an inlet flange 5 integrally formed along the horizontal direction. An opening is provided on the pump body 4 on the opposite side of the inlet flange 5. An outlet flange 6 is integrally formed on one side of the pump body 4 along the vertical tangent direction through the liquid outlet pipe 10. b. Then, the inner wall 20 of the pump body 4 is ground and polished. The inner wall 20 of the pump body 4 has a spiral structure. c. Next, a first mounting hole 7 is made on the side of the pump body 4 away from the inlet flange 5, and a second mounting hole 9 is made on the support seat 8 at the bottom of the pump body 4. S2, Cross-shaped impeller machining a. First, add casting liquid and coolant to the storage tank 23 and coolant storage tank 24 on the base plate 22 respectively, and control the temperature of the storage tank 23 and coolant storage tank 24. Connect the storage tank 23 and coolant storage tank 24 to the injection assembly 54 on the injection mechanism 28 through the casting pipe and water supply pipe respectively. The injection mechanism 28 includes a second guide rod 49, a first horizontal beam 50, a second horizontal beam 51, a first crossbeam 52, a second crossbeam 53, a first drive assembly, a second drive assembly, and a third hydraulic cylinder 63. The third hydraulic cylinder 63 is fixedly connected to the processing table 21 via a third fixing block 62. The third hydraulic cylinder 63 is connected to the first horizontal beam 50 via a third piston rod 64. The top end of the second guide rod 49 is fixed to the first horizontal beam 50, and the bottom end of the second guide rod 49 vertically passes through the second fixing block 48 and moves up and down along the second fixing block 48. The second fixing block 48 is located on the side of the processing table 21. The second horizontal beam 51 is fixedly connected to the inner side of the first horizontal beam 50. Both the first horizontal beam 50 and the second horizontal beam 51 are provided with first drive assemblies. A first crossbeam 52 connects the two first drive assemblies on the first horizontal beam 50 and the two crossbeams on the second horizontal beam 51. A second crossbeam 53 connects the first drive components. The second drive components are respectively mounted on the first crossbeam 52 and the second crossbeam 53. The second drive components drive the injection component 54 to move along the first crossbeam 52 and the second crossbeam 53. The third hydraulic cylinder 63 can drive the first horizontal beam 50 to move up and down via the third piston rod 64, which in turn can drive the second horizontal beam 51, the first crossbeam 52, the second crossbeam 53, the first drive components, and the second drive components to move up and down synchronously, thus meeting the height adjustment requirements of the injection component 54. The second guide rod 49 improves the stability and reliability of the entire injection mechanism 28 during the up and down movement. The first drive components can drive the first crossbeam 52 and the second crossbeam 53 to move horizontally, and the second drive components can drive the injection component 54 to move along the first crossbeam 52 and the second crossbeam 53, thus meeting the delivery requirements of the casting liquid and coolant and improving the casting quality.

[0038] Both the first drive assembly and the second drive assembly include a motor 55, a baffle 56, and a screw 57. The motor 55 is rotatably connected to the baffle 56 via the screw 57. The motor 55 drives the screw 57 to rotate, which in turn drives the first crossbeam 52, the second crossbeam 53, and the liquid injection assembly 54 to move, thus meeting the movement requirements of the pouring pipe and the water delivery pipe.

[0039] The liquid injection assembly 54 includes a slider 58, a booster block 59, an L-shaped plate 60, and a bend 61. The slider 58 is slidably connected to the first crossbeam 52 and the second crossbeam 53. The booster block 59 is located on the top of the slider 58 and connected to the screw 57. The L-shaped plate 60 is located at the bottom of the slider 58. The bend 61 is mounted on the L-shaped plate 60. The screw 57 can drive the booster block 59 to move back and forth, which in turn can drive the slider 58 to move back and forth along the first crossbeam 52 and the second crossbeam 53. The L-shaped plate 60 improves the stability and reliability of the bend 61 installation. The bend 61 facilitates the connection between the pouring pipe and the water supply pipe and the pouring joint 38 and the coolant joint 39, respectively.

[0040] b. Then, the upper module 26 is moved downward by the lifting mechanism 27, so that the upper module 26 is close to the lower mold 25 on the processing table 21 until the upper module 26 and the lower mold 25 are completely in contact. The upper mold assembly 26 includes an upper mold 35 that corresponds one-to-one with the lower mold 25. Two adjacent upper molds 35 are fixedly connected by a connecting rod 36. A reinforcing rod 37 is provided between the connecting rods 36. A cross block 46 is provided on the bottom surface of the upper mold 35. The cross block 46 matches the casting cavity 29. A casting joint 38 is provided on the upper mold 35. The casting joint 38 passes through the cross block 46 and connects to the casting cavity 29. The connecting rod 36 and the reinforcing rod 37 improve the connection strength and stability between the upper molds 35. The cross block 46 can cooperate with the casting cavity 29 for casting the cross-shaped impeller 13.

[0041] The lower mold 25 is provided with a coolant through hole 31 and a positioning hole 32. The upper mold 35 is provided with a coolant connector 39 and a positioning pin 47. The coolant connector 39 matches the coolant through hole 31, and the positioning pin 47 matches the positioning hole 32. The coolant connector 39 can easily communicate with the coolant through hole 31 for injecting coolant into the lower mold 25 to improve the forming efficiency of the cross-shaped impeller 13. The positioning hole 32 and the positioning pin 47 can improve the fitting accuracy between the upper mold 35 and the lower mold 25 and avoid misalignment that would affect the casting quality.

[0042] The lifting mechanism 27 includes a lifting block 40, a first guide rod 42, and a second hydraulic cylinder 44. The lifting block 40 is located on the outer edge of each upper mold 35. The first guide rod 42 vertically passes through the lifting block 40. The bottom end of the first guide rod 42 is connected to the processing table 21 through a first fixing block 41. A clamping block 43 is provided on the side of the first fixing block 41. The second hydraulic cylinder 44 is detachably connected to the clamping block 43. The second hydraulic cylinder 44 is connected to the lifting block 40 through a second piston rod 45. The second hydraulic cylinder 44 drives the lifting block 40 to move up and down through the second piston rod 45, thereby driving the entire upper mold assembly 26 to move up and down, meeting the movement requirements of each upper mold 35. The first guide rod 42 improves the stability and reliability of the upper mold assembly 26 during movement.

[0043] c. Next, start the liquid injection mechanism 28 to bring each liquid injection component 54 close to the upper module 26 and connect it to the upper module 26. First, inject the liquid into the casting cavity 29 in the lower mold 25 through the casting pipe via the upper module 26 until the liquid level in the casting cavity 29 reaches the upper module 26, then stop the injection. Then, inject coolant into each lower mold 25 through the water supply pipe until the liquid in the casting cavity 29 forms a cross-shaped impeller 13 in the casting groove. d. Start the injection mechanism 28 to disengage from the upper mold 26 and rise to the required height position. Then start the lifting mechanism 27 to disengage the upper mold 26 from the lower mold 25. Next, start the push mechanism on the lower mold 25 to disengage the cross-shaped impeller 13 from the pouring cavity 29. The pushing mechanism includes a core 30 and a first hydraulic cylinder 33. The core 30 moves up and down along the inside of the casting cavity 29. The first hydraulic cylinder 33 is located on the bottom surface of the processing table 21. The first hydraulic cylinder 33 is connected to the core 30 through a first piston rod 34. The core 30 not only facilitates the casting and molding of the cross-shaped impeller 13, but also can move along the casting cavity 29 through the first piston rod 34 under the action of the first hydraulic cylinder 33, thus meeting the demolding requirements of the cross-shaped impeller 13.

[0044] e. Finally, the removed cross-shaped impeller 13 is ground and shot blasted. S3. Machining of fixed housing 2, sealing cover 11 and support ring 12 a. First, determine the dimensions of the fixed housing 2 based on the dimensions of the pump body 4, and then process the corresponding fixed housing 2; b. Then, according to the dimensions of the fixed housing 2 and the pump body 4, process a suitable sealing cover 11 and support ring 12; S4, Cross Pump Assembly a. First, install the cross-shaped impeller 13 onto the end of the connecting shaft 17 using the positioning key 15 and the fastening screw 14, and then pass the connecting shaft 17 horizontally through the shaft hole on the sealing cover 11. Install the bearing 16 between the sealing cover 11 and the connecting shaft 17, and then place the cross-shaped impeller 13 into the pump body 4 to fix the sealing cover 11 to the pump body 4. b. Then install the support ring 12 on the outside of the sealing cover 11, connect it to the fixed housing 2, and install the fixed housing 2 and the pump body 4 together on the base 3; c. Next, select a suitable drive motor 1 and install the drive motor 1 on the base 3, so that the output shaft of the drive motor 1 is connected to the end of the connecting shaft 17 through a coupling.

[0045] The manufacturing method is simple and can not only meet the requirements of simultaneous manufacturing of multiple cross-shaped impellers 13, thus improving the manufacturing efficiency of the cross pump, but also improve the assembly accuracy of the cross pump, meeting the requirements of assembly line production.

[0046] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to achieve substantially the same technical effect are all covered within the protection scope of the present invention.

Claims

1. A high-throughput cross-shaped pump for large particles, comprising a pump casing, wherein the inlet end of the pump casing is provided with an inlet flange, and the outlet end of the pump casing is connected to an outlet flange via an outlet pipe, characterized in that: It also includes a cross-shaped impeller, which is rotatably connected inside the pump casing. The center of the cross-shaped impeller is coaxial with the center of the inlet flange. When the cross-shaped impeller rotates inside the pump casing to generate vortices, a low pressure is generated at the center of the side of the cross-shaped impeller near the inlet flange, forming a self-suction force to draw the liquid at the inlet flange into the pump casing. After centrifugation, the liquid is output through the outlet pipe. The cross-shaped impeller includes an end cap with an opening on one side and blades evenly distributed along the outer circumference of the end cap. The blades have a strip-shaped structure, and adjacent blades are perpendicular to each other. The distances between the ends of the blades and the top and bottom of the pump body are h1 and h3, respectively, and the distances between the ends of the blades and the sides of the pump body are h2 and h4, respectively, where h1 < h2 < h3 < h4.

2. The high-throughput cross pump for large particles according to claim 1, characterized in that: It also includes a drive motor, a fixed housing, and a base. The pump housing is connected to the drive motor through the fixed housing. Both the pump housing and the drive motor are mounted on the base. A sealing cover is provided on the pump housing on the side opposite to the inlet flange. The sealing cover abuts against the fixed housing. The output shaft of the drive motor passes through the sealing cover and is connected to the cross-shaped impeller through a connecting shaft. A fastening screw passes through the cross-shaped impeller and is connected to the connecting shaft to achieve a fixed connection between the cross-shaped impeller and the connecting shaft. A support ring is provided between the fixed housing and the sealing cover. A bearing is provided between the support ring, the sealing cover, and the connecting shaft.

3. A method for manufacturing a high-throughput cross pump for large particles as described in claim 1 or 2, characterized in that: Includes the following steps: S1, Pump body machining a. First, determine the dimensions of the pump body according to the design requirements, and form the required pump body by casting. The pump body has an inlet flange integrally formed along the horizontal direction, and an opening is provided on the side of the pump body opposite to the inlet flange. An outlet flange is integrally formed on one side of the pump body along the vertical tangent direction through the liquid outlet pipe. b. Then, the inner wall of the pump body is ground and polished, and the inner wall of the pump body has a spiral structure. c. Next, make the first mounting hole along the side of the pump body away from the inlet flange, and make the second mounting hole along the support base at the bottom of the pump body. S2, Cross-shaped impeller machining a. First, add casting liquid and coolant to the storage tank and coolant storage tank on the base plate respectively, and control the temperature of the storage tank and coolant storage tank. Connect the storage tank and coolant storage tank to the injection assembly on the injection mechanism through the casting pipe and water supply pipe respectively. b. Then, the upper module is moved downward by the lifting mechanism, so that the upper module is close to the lower mold on the processing table until the upper module and the lower mold are completely in contact. c. Next, start the liquid injection mechanism, bring each liquid injection component close to the upper module and connect it to the upper module. First, inject the liquid into the casting cavity of the lower mold through the casting pipe through the upper module until the liquid level in the casting cavity reaches the upper module, then stop the injection. Then, inject coolant into each lower mold through the water supply pipe until the liquid in the casting cavity forms a cross-shaped impeller in the casting groove. d. Start the injection mechanism to detach from the upper mold and rise to the required height position. Then start the lifting mechanism to detach the upper mold from the lower mold. Next, start the push mechanism on the lower mold to detach the cross-shaped impeller from the pouring cavity. e. Finally, the removed cross-shaped impeller is ground and shot blasted. S3. Machining of the fixed housing, sealing cover and support ring a. First, determine the dimensions of the fixed housing based on the dimensions of the pump body, and then process the corresponding fixed housing; b. Then, based on the dimensions of the fixed housing and pump body, process suitable sealing caps and support rings; S4, Cross Pump Assembly a. First, install the cross-shaped impeller onto the end of the connecting shaft using a positioning key and fastening screws. Then, pass the connecting shaft horizontally through the shaft hole on the sealing cover. Install the bearing between the sealing cover and the connecting shaft. Finally, place the cross-shaped impeller into the pump body to fix the sealing cover to the pump body. b. Then install the support ring on the outside of the sealing cover, connect it to the fixed housing, and install the fixed housing and pump body together on the base; c. Next, select a suitable drive motor and install it on the base, so that the output shaft of the drive motor is connected to the end of the connecting shaft through a coupling.

4. The manufacturing method of a high-throughput cross pump for large particles according to claim 3, characterized in that: The injection mechanism in step S2a includes a second guide rod, a first horizontal beam, a second horizontal beam, a first crossbeam, a second crossbeam, a first drive assembly, a second drive assembly, and a third hydraulic cylinder. The third hydraulic cylinder is fixedly connected to the processing table via a third fixed block. The third hydraulic cylinder is connected to the first horizontal beam via a third piston rod. The top end of the second guide rod is fixed to the first horizontal beam, and the bottom end of the second guide rod vertically penetrates the second fixed block and moves up and down along the second fixed block. The second fixed block is located on the side of the processing table. The second horizontal beam is fixedly connected to the inner side of the first horizontal beam. The first drive assembly is provided on both the first and second horizontal beams. A first crossbeam is connected between two first drive assemblies on the first horizontal beam, and a second crossbeam is connected between two first drive assemblies on the second horizontal beam. The second drive assembly is respectively located on the first crossbeam and the second crossbeam. The second drive assembly drives the injection assembly to move along the first crossbeam and the second crossbeam.

5. The manufacturing method of a high-throughput cross pump for large particles according to claim 4, characterized in that: Both the first drive assembly and the second drive assembly include a motor, a baffle, and a screw, with the motor rotatably connected to the baffle via the screw.

6. The manufacturing method of a high-throughput cross pump for large particles according to claim 3, characterized in that: The injection assembly in step S2 process a includes a slider, a booster block, an L-shaped plate, and a bent tube. The slider is slidably connected to the first crossbeam and the second crossbeam. The booster block is located on the top of the slider and connected to the screw. The L-shaped plate is located at the bottom of the slider, and the bent tube is installed on the L-shaped plate.

7. A method for manufacturing a high-throughput cross pump for large particles according to claim 3: the upper mold assembly in step S2 b includes an upper mold corresponding to the lower mold, two adjacent upper molds are fixedly connected by connecting rods, a reinforcing rod is provided between the connecting rods, a cross block is provided on the bottom surface of the upper mold, the cross block matches the casting cavity, a casting joint is provided on the upper mold, and the casting joint passes through the cross block and communicates with the casting cavity.

8. The manufacturing method of a high-throughput cross pump for large particles according to claim 3, characterized in that: In step S2 process b, the lower mold is provided with a coolant through hole and a positioning hole, and the upper mold is provided with a coolant connector and a positioning pin. The coolant connector matches the coolant through hole, and the positioning pin matches the positioning hole.

9. A method for manufacturing a high-throughput cross pump for large particles according to claim 3, characterized in that: The lifting mechanism in step S2 b includes a lifting block, a first guide rod, and a second hydraulic cylinder. The lifting block is located on the outer edge of each upper mold. The first guide rod vertically passes through the lifting block. The bottom end of the first guide rod is connected to the processing table through a first fixing block. A clamping block is provided on the side of the first fixing block. The second hydraulic cylinder is detachably connected to the clamping block and is connected to the lifting block through a second piston rod.

10. A method for manufacturing a high-throughput cross pump for large particles according to claim 3, characterized in that: The pushing mechanism in step S2 process d includes a core and a first hydraulic cylinder. The core moves up and down along the inside of the casting cavity. The first hydraulic cylinder is located on the bottom surface of the processing table and is connected to the core through a first piston rod.

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