A three-screw pump for quantitatively preventing blockage of material transportation

Abstract

The present invention relates to the technical field of three-screw pumps, and provides a three-screw pump for quantitatively preventing blockage and transporting materials, which includes a pump body, a feed pipe, a material guiding component, a spherical shell, a separation and filtration component, a driving module, a moving part, a transmission part and a discharge pipe. The feed pipe includes a first pipe body, a spherical cover and a second pipe body. The material guiding component includes a spherical core, a material guiding channel, a fixed shaft and a first annular guide rail. The surface of the spherical core is provided with a material guiding channel. The separation and filtration component includes a conical shell and a filter element. A first toothed ring is fixedly connected to the outside of the conical shell. The spherical cover is distributed between the first pipe body and the second pipe body. The surface of the spherical cover is provided with a conical hole. The moving part is slidably connected between the first annular guide rail and the conical shell. The transmission part is drivingly connected between the driving module and the first toothed ring. The fixed shaft is drivingly connected to the driving module, and has the characteristics of being convenient for disassembling and replacing the filter element and automatically cleaning the particulate impurities on the surface of the filter element before replacing the filter element.

Description

Technical Field

[0001] The present invention relates to the technical field of three-screw pumps, and particularly to a three-screw pump for quantitatively preventing blockage and transporting materials. Background Art

[0002] A three-screw pump is a special type of positive-displacement pump, mainly used for transporting high-viscosity, low-viscosity liquids and fluids containing solid particles. It uses the interaction of three screws to produce the effects of sucking, compressing, and discharging fluids. A three-screw pump consists of three screws, usually including one main screw and two auxiliary screws. When the main screw rotates, the auxiliary screws also rotate accordingly, forming a continuous spiral cavity. The volume of this cavity changes continuously, generating negative pressure, causing the liquid to be sucked in through the inlet. The liquid is gradually compressed during the rotation of the screws, the volume of the cavity decreases, and the liquid is pushed forward. When the liquid reaches the outlet of the pump, it forms a high-pressure state and is discharged.

[0003] After retrieval, the existing publication number CN116292273B discloses an anti-blocking three-screw pump mechanism. The anti-blocking three-screw pump mechanism includes a pump body, a filtering mechanism, a impurity-removing mechanism, and a driving mechanism. A water inlet pipe is provided on the pump body; the filtering mechanism includes a cylinder body connected between the first pipe body and the second pipe body. The cylinder body is provided with filter cavities evenly distributed along its circumference. The filtering mechanism further includes filter elements detachably connected to the filter cavities, and each filter element is provided with a sensing element; the impurity-removing mechanism is rotationally connected to the cylinder body through a rotating shaft; the driving mechanism includes a driving shaft, a base provided at the end of the driving shaft, a pin shaft protruding from the base away from the driving shaft, and a driven block coaxially arranged with the cylinder body and sleeved on the outer circumference of the cylinder body. The above technical solution controls the driving mechanism to work through the sensing element to rotate the filtering mechanism, so that the filter element filtering the materials transported by the first pipe body is replaced with the next one.

[0004] Although the above anti-blocking three-screw pump can automatically replace the filter element, there are still the following defects in use: on the one hand, before replacing the filter element blocked by particulate impurities, the particulate impurities in the filter element cannot be automatically cleaned in advance; on the other hand, when disassembling and assembling the filter element, the filter element cannot be automatically extended out of the maintenance port, making it inconvenient to use tools to disassemble and assemble the filter element. Summary of the Invention

[0005] The purpose of the present invention is to provide a three-screw pump for quantitatively preventing blockage and transporting materials, aiming to solve the problems existing in the existing anti-blocking three-screw pump.

[0006] To achieve the above purpose, the present invention provides the following technical solution. A three-screw pump for quantitatively preventing blockage and transporting materials includes a pump body and a discharge pipe. The pump body is fixedly connected to the discharge pipe, and further includes:

[0007] A feed pipe, the feed pipe includes a first pipe body, a spherical cover and a second pipe body, the second pipe body is fixedly connected to a pump body, and the spherical cover is distributed between the first pipe body and the second pipe body;

[0008] A material guiding assembly, the material guiding assembly includes a ball core, a material guiding channel, a fixed shaft and a first annular guide rail, the fixed shaft and the first annular guide rail are both fixedly connected to the ball core, and a material guiding channel is arranged on the surface of the ball core;

[0009] A spherical shell distributed between the spherical cover and the ball core, a tapered hole is arranged on the surface of the spherical shell, and a slag dropping port is arranged inside the tapered hole;

[0010] A separation and filtration assembly, the separation and filtration assembly includes a tapered shell and a filter element, the tapered shell is located in the tapered hole, the filter element is fixedly connected inside the tapered shell, and a first toothed ring is fixedly connected to the outside of the tapered shell;

[0011] A driving module, the driving module is connected to one side of the spherical shell, and the fixed shaft is in transmission connection with the driving module;

[0012] A moving part penetrating the spherical shell, the moving part is slidably connected between the first annular guide rail and the tapered shell;

[0013] A transmission part connected to the spherical shell, the transmission part is in transmission connection between the driving module and the first toothed ring.

[0014] As a further solution of the present invention, the moving part includes a second annular guide rail, a sliding rod, a slider, a fixed ring and a second return spring, the sliding rod is fixedly connected between the slider and the second annular guide rail, a rotating ring is fixedly connected to the outside of the tapered shell, the rotating ring is rotatably connected inside the second annular guide rail, the slider is slidably connected to the inner side of the first annular guide rail, the fixed ring is fixedly connected to the sliding rod, the second return spring is movably sleeved on the surface of the sliding rod, and one end of the second return spring is connected to the fixed ring.

[0015] As a further solution of the present invention, the number of the tapered holes is six, the six tapered holes are symmetrically distributed about the center of the spherical shell, and fixed frames are fixedly connected in two of the tapered holes distributed along the axial direction of the fixed shaft, the fixed frames are fixedly connected with a limiting frame and a ratchet ring, the sliding rod penetrates the fixed frame, and the other end of the second return spring is connected to the fixed frame.

[0016] As a further solution of the present invention, protrusions are arranged on the inner side of the first annular guide rail, the two protrusions are arranged in the direction along the material guiding channel, and the direction of the material guiding channel is the same as the directions of the first pipe body and the second pipe body.

[0017] As a further solution of the present invention, the transmission part includes a second toothed ring, a driven gear, a transmission rod and a transmission gear. The second toothed ring is movably connected within the limiting frame. Both the driven gear and the transmission gear are fixedly connected to the transmission rod. The transmission rod is connected to the fixed frame. The driving module is in transmission connection with the inner side of the second toothed ring. The outer side of the second toothed ring is in transmission connection with the driven gear. The first toothed ring is in transmission connection with the transmission gear.

[0018] As a further solution of the present invention, the material guiding assembly further includes a toothed disc and a limiting disc. Both the toothed disc and the limiting disc are fixedly connected to the fixed shaft. The driving module is fixedly connected to the toothed disc. The surface of the limiting disc is provided with pawls. The ratchet ring is meshed and connected with the pawls.

[0019] As a further solution of the present invention, the driving module includes a driving motor, a driving shaft, a driving gear, an electromagnet, a first return spring, a limiting end and a bracket. Both the driving motor and the bracket are fixedly connected to the fixed frame. The driving motor is connected to the driving shaft. The surface and the end of the driving shaft are respectively provided with a limiting rib and a limiting end. The driving gear is slidably connected to the surface of the driving shaft and the limiting rib. The surface of the bracket and the driving gear are respectively inlaid with an electromagnet and a magnetic ring. The first return spring is connected between the driving gear and the bracket. Both the second toothed ring and the toothed disc are in transmission connection with the driving gear.

[0020] As a further solution of the present invention, a maintenance opening is provided at the position of the spherical cover corresponding to the moving part. A sealing cover is threadedly connected at the maintenance opening. A retaining ring is provided at a position on the inner wall of the spherical cover parallel to the fixed shaft. A slag discharge pipe is fixedly connected at the retaining ring.

[0021] As a further solution of the present invention, first sealing rings and second sealing rings are provided on the inner walls of the four conical holes symmetrically distributed about the fixed axis. Both the first sealing ring and the second sealing ring are in contact with the conical shell.

[0022] As a further solution of the present invention, a plurality of slag passing openings are provided on the surface of the conical shell.

[0023] The beneficial effects of the present invention are as follows. On the basis that the automatic replacement filter element is aligned with the material guiding channel, it is also possible to control the movement and rotation of the filter element adhered with particulate impurities. On the one hand, it is convenient to use tools to disassemble and remove the filter element that has been moved a certain distance out of the conical hole. On the other hand, the centrifugal force generated by the rotating filter element can automatically shed the particulate impurities adhered to the surface of the filter element. After shedding, the particulate impurities enter the slag falling port along the inner wall of the conical hole and are discharged outwards. It has the characteristics of being convenient for disassembling and replacing the filter element and automatically cleaning the particulate impurities on the surface of the filter element before replacing the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a perspective view of the present invention.

[0025] Figure 2 This is a perspective view of the material guiding assembly according to an embodiment of the present invention.

[0026] Figure 3 This is a perspective view of the spherical shell according to an embodiment of the present invention.

[0027] Figure 4 This is a cross-sectional view of the feed pipe, the material guiding assembly, and the spherical shell according to an embodiment of the present invention.

[0028] Figure 5 This is a plan cross-sectional view of the feed pipe, the material guiding assembly, and the spherical shell according to an embodiment of the present invention.

[0029] Figure 6 This is an exploded view of the separation and filtration assembly according to an embodiment of the present invention.

[0030] Figure 7 This is an exploded view of the drive module according to an embodiment of the present invention.

[0031] Figure 8 This is a perspective view of the moving part according to an embodiment of the present invention.

[0032] Figure 9 This is a perspective view of the transmission part according to an embodiment of the present invention.

[0033] Figure 10 This is a cross-sectional view of the feed pipe, the material guiding assembly, the spherical shell, the separation and filtration assembly, the drive module, the moving part, and the transmission part according to an embodiment of the present invention.

[0034] Figure 11 For the present invention Figure 10 Local enlarged view at a in

[0035] Figure 12 This is the first plan cross-sectional view of the feed pipe, the material guiding assembly, the spherical shell, the separation and filtration assembly, the drive module, the moving part, and the transmission part according to an embodiment of the present invention.

[0036] Figure 13 This is the second plan cross-sectional view of the feed pipe, the material guiding assembly, the spherical shell, the separation and filtration assembly, the drive module, the moving part, and the transmission part according to an embodiment of the present invention.

[0037] Figure 14 For the present invention Figure 13 Local enlarged view at b in

[0038] Reference numerals: 1 - pump body, 11 - feed pipe, 111 - first pipe body, 112 - spherical cover, 1121 - slag discharge pipe, 1122 - retaining ring, 1123 - maintenance port, 113 - second pipe body, 114 - sealing cover, 12 - discharge pipe;

[0039] 2 - Material guiding component, 21 - Ball core, 211 - Material guiding channel, 22 - Fixed shaft, 23 - First annular guide rail, 231 - Protrusion, 24 - Tooth disc, 25 - Limit disc, 26 - Locking nut;

[0040] 3 - Ball shell, 31 - Tapered hole, 311 - Slag discharge port, 312 - First sealing ring, 313 - Second sealing ring, 32 - Fixed bracket, 321 - Ratchet ring, 322 - Limit bracket;

[0041] 4 - Separation and filtration component, 41 - Tapered shell, 411 - First tooth ring, 412 - Rotating ring, 413 - Slag passing port, 42 - Filter element;

[0042] 5 - Driving module, 51 - Driving motor, 52 - Driving shaft, 53 - Driving gear, 54 - Electromagnet, 55 - First return spring, 56 - Limit end, 57 - Bracket;

[0043] 6 - Moving part, 61 - Second annular guide rail, 62 - Slide bar, 63 - Slide block, 64 - Fixed ring, 65 - Second return spring;

[0044] 7 - Transmission part, 71 - Second tooth ring, 72 - Driven gear, 73 - Transmission rod, 74 - Transmission gear. Detailed implementation mode

[0045] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0047] Please refer to Figures 1 to 14 , in an embodiment of the present invention, a three - screw pump for quantitative and anti - clogging conveying of materials includes a pump body 1 and a discharge pipe 12, the pump body 1 is fixedly connected to the discharge pipe 12, and further includes:

[0048] A feed pipe 11, the feed pipe 11 includes a first pipe body 111, a spherical cover 112 and a second pipe body 113, the second pipe body 113 is fixedly connected to the pump body 1, and the spherical cover 112 is distributed between the first pipe body 111 and the second pipe body 113;

[0049] A material guiding component 2, the material guiding component 2 includes a ball core 21, a material guiding channel 211, a fixed shaft 22 and a first annular guide rail 23, the fixed shaft 22 and the first annular guide rail 23 are both fixedly connected to the ball core 21, a material guiding channel 211 is arranged on the surface of the ball core 21, and locking nuts 26 are threadedly connected to both ends of the fixed shaft 22;

[0050] A spherical shell 3 is disposed between the spherical cover 112 and the spherical core 21. A conical hole 31 is provided on the surface of the spherical shell 3, and a slag dropping port 311 is provided inside the conical hole 31;

[0051] A separation and filtration assembly 4, the separation and filtration assembly 4 includes a conical shell 41 and a filter element 42. The conical shell 41 is located in the conical hole 31. The filter element 42 is fixedly connected inside the conical shell 41. A first toothed ring 411 is fixedly connected to the outside of the conical shell 41;

[0052] A drive module 5, the drive module 5 is connected to one side of the spherical shell 3, and the fixed shaft 22 is in transmission connection with the drive module 5;

[0053] A moving part 6 penetrating through the spherical shell 3, the moving part 6 is slidably connected between the first annular guide rail 23 and the conical shell 41;

[0054] A transmission part 7 connected to the spherical shell 3, the transmission part 7 is in transmission connection between the drive module 5 and the first toothed ring 411.

[0055] Please refer to Figure 1 and Figure 11 , further, a maintenance port 1123 is provided at a position of the spherical cover 112 corresponding to the moving part 6. A sealing cover 114 is threadedly connected to the maintenance port 1123. A retaining ring 1122 is provided at a position on the inner wall of the spherical cover 112 parallel to the fixed shaft 22. A slag discharge pipe 1121 is fixedly connected to the retaining ring 1122.

[0056] Please refer to Figure 3 and Figure 14 , further, first sealing rings 312 and second sealing rings 313 are provided on the inner walls of the four conical holes 31 symmetrically distributed with respect to the fixed shaft 22. The first sealing rings 312 and the second sealing rings 313 are both in contact with the conical shell 41.

[0057] In an embodiment of the present invention, a plurality of slag passing ports 413 are provided on the surface of the conical shell 41. The centrifugal force generated by the rotating conical shell 41 and the filter element 42 causes the particulate impurities attached to the surface of the filter element 42 to break away from the filter element 42 and enter the conical hole 31 through the slag passing ports 413, and then enter the bottom of the spherical cover 112 along the slag dropping port 311 in the conical hole 31. The retaining ring 1122 is used to prevent the particulate impurities from contacting the fixed shaft 22 on the one hand, and on the other hand, drives the particulate impurities to enter the slag discharge pipe 1121 and be discharged outwards.

[0058] Please refer to Figure 8 , Figure 10 , Figure 11, in an embodiment of the present invention, the moving part 6 includes a second annular guide rail 61, a sliding rod 62, a slider 63, a fixing ring 64 and a second return spring 65. The sliding rod 62 is fixedly connected between the slider 63 and the second annular guide rail 61. A rotating ring 412 is fixedly connected to the outside of the conical housing 41, and the rotating ring 412 is rotatably connected in the second annular guide rail 61. The slider 63 is slidably connected to the inner side of the first annular guide rail 23. The fixing ring 64 is fixedly connected to the sliding rod 62. The second return spring 65 is movably sleeved on the surface of the sliding rod 62, and one end of the second return spring 65 is connected to the fixing ring 64.

[0059] Please refer to Figure 2 , convex 3 and Figure 11 , further, the number of the conical holes 31 is six, and the six conical holes 31 are symmetrically distributed about the center of the spherical shell 3. Fixed frames 32 are fixedly connected in two of the conical holes 31 distributed along the axial direction of the fixed shaft 22. The fixed frames 32 are fixedly connected with limiting frames 322 and ratchet rings 321. The sliding rod 62 penetrates through the fixed frames 32, and the other end of the second return spring 65 is connected to the fixed frames 32.

[0060] Please refer to Figure 2 , Figure 12 , further, protrusions 231 are provided on the inner side of the first annular guide rail 23, and the two protrusions 231 are arranged along the direction of the material guiding channel 211, and the direction of the material guiding channel 211 is the same as the directions of the first pipe body 111 and the second pipe body 113.

[0061] In the embodiment of the present invention, each group of moving parts 6 corresponds to a group of separation and filtration components 4. When a group of conical holes 31 of the spherical shell 3 are aligned with the material guiding channel 211, the slider 63 corresponding to this group of conical holes 31 moves to the position of the protrusion 231. Since the protrusion 231 is in the direction close to the axis of the fixed shaft 22, the protrusion 231 can play a role in limiting the conical housing 41 and the filter element 42 through the slider 63, the sliding rod 62, the second annular guide rail 61 and the rotating ring 412, so as to prevent the conical housing 41 and the filter element 42 from separating from the conical holes 31. And at this time, the conical housing 41 contacts the first sealing ring 312 and the second sealing ring 313 along the axial direction of the conical holes 31, and the first sealing ring 312 and the second sealing ring 313 play a role in axial limiting and sealing.

[0062] Please refer to Figure 9 , Figure 10 , Figure 11 and Figure 14, in an embodiment of the present invention, the transmission part 7 includes a second toothed ring 71, a driven gear 72, a transmission rod 73 and a transmission gear 74. The second toothed ring 71 is movably connected within the limit frame 322. Both the driven gear 72 and the transmission gear 74 are fixedly connected to the transmission rod 73. The transmission rod 73 is connected to the fixed frame 32. The driving module 5 is in transmission connection with the inner side of the second toothed ring 71. The outer side of the second toothed ring 71 is in transmission connection with the driven gear 72. The first toothed ring 411 is in transmission connection with the transmission gear 74. The number of the transmission parts 7 is one group.

[0063] Please refer to Figure 2 and Figure 11 , further, the material guiding assembly 2 further includes a toothed disc 24 and a limit disc 25. Both the toothed disc 24 and the limit disc 25 are fixedly connected to the fixed shaft 22. The driving module 5 is fixedly connected to the toothed disc 24. The surface of the limit disc 25 is provided with pawls. The ratchet ring 321 is meshed with the pawls. The meshing manner between the ratchet ring 321 and the pawls is used to limit the spherical shell 3.

[0064] Please refer to Figure 7 and Figure 11 , further, the driving module 5 includes a driving motor 51, a driving shaft 52, a driving gear 53, an electromagnet 54, a first return spring 55, a limit end 56 and a bracket 57. Both the driving motor 51 and the bracket 57 are fixedly connected to the fixed frame 32. The driving motor 51 is connected to the driving shaft 52. The surface and the end of the driving shaft 52 are respectively provided with a limit rib and a limit end 56. The driving gear 53 is slidably connected to the surface of the driving shaft 52 and the limit rib. The bracket 57 and the surface of the driving gear 53 are respectively inlaid with an electromagnet 54 and a magnetic ring. The first return spring 55 is connected between the driving gear 53 and the bracket 57. Both the second toothed ring 71 and the toothed disc 24 are in transmission connection with the driving gear 53.

[0065] In an embodiment of the present invention, when the electromagnet 54 is energized, the magnetic attraction force between the energized electromagnet 54 and the magnetic ring drives the driving gear 53 to move along the driving shaft 52 and the limit rib. When the electromagnet 54 is in contact with the magnetic ring, the driving gear 53 is in transmission connection with the second toothed ring 71. After the electromagnet 54 is energized, since the magnetic ring loses the magnetic attraction force of the electromagnet 54, the elastic force of the first return spring 55 drives the driving gear 53 to contact the limit end 56. At this time, the driving gear 53 is in transmission connection with the toothed disc 24.

[0066] Working principle: Materials enter the second tube body 113 through the first tube body 111 and a group of conical holes 31 aligned with the material guiding channel 211, and then enter the pump body 1. At this time, the slider 63 in the moving part 6 contacts the protrusion 231, and the first toothed ring 411 disengages from the transmission gear 74. The protrusion 231 serves to fix the conical shell 41 and the filter element 42 in the conical hole 31, and the first return spring 55 is in a compressed state. When the pump body 1 detects an abnormality in the flow rate or pressure of the materials inside the feed pipe 11, it first drives the motor 51 to control the rotation of the drive gear 53 through the drive shaft 52. The rotating drive gear 53 controls the ball shell 3, the separation and filtration assembly 4, the drive module 5, the moving part 6, and the transmission part 7 to rotate 90 degrees together around the fixed shaft 22 as the axis, so that another group of conical holes 31 are aligned with the material guiding channel 211, and the previous group of conical holes 31 rotate to a position aligned with the maintenance port 1123. Since the slider 63 in the moving part 6 disengages from the protrusion 231 at this time, the elastic force of the second return spring 65 drives the slide rod 62, the second annular guide rail 61, and the conical shell 41 to move towards the maintenance port 1123 through the fixed ring 64 until the first toothed ring 411 meshes with the transmission gear 74 in the transmission part 7 and stops. Since the moving conical shell 41 can be closer to the maintenance port 1123 at this time, it is convenient to disassemble and assemble the filter element 42 in the conical shell 41;

[0067] Then, control the electromagnet 54 to be energized. After being energized, the electromagnet 54 uses the magnetic adsorption principle to control the drive gear 53 to move along the drive shaft 52 to a position in contact with the second toothed ring 71. The pawl at the position of the retaining ring 1122 limits the ball shell 3 through the ratchet ring 321, which is used to prevent the ball shell 3 from deviating from the material guiding channel 211 due to rotation or vibration. The drive motor 51 rotates through the drive gear 53, the second toothed ring 71, the driven gear 72, the transmission rod 73, and the transmission gear 74. The rotating transmission gear 74 controls the rotation of the conical shell 41, the filter element 42, and the rotating ring 412 in the second annular guide rail 61. The centrifugal force generated by the rotating conical shell 41 and the filter element 42 drives the particulate impurities attached to the surface of the filter element 42 to separate from the filter element 42, pass through the slag passing port 413 into the conical hole 31, and finally discharge outward along the slag discharge port 311 in the conical hole 31 and the slag discharge pipe 1121 at the position of the spherical cover 112, realizing the function of automatically cleaning the filter residue on the surface of the filter element 42. On the one hand, it is convenient to recycle the filter element 42, and on the other hand, it improves the efficiency of cleaning the filter element 42.

[0068] In summary, the present application uses the structural design in which the material guiding component 2, the spherical shell 3, the separation and filtration component 4, the driving module 5, the moving part 6 and the transmission part 7 cooperate with each other. On the basis of automatically aligning the filter element 42 with the material guiding channel 211, it is also possible to control the movement and rotation of the filter element 42 adhered with particulate impurities. On the one hand, it is convenient to use tools to disassemble and remove the filter element 42 that is a certain distance away from the conical hole 31. On the other hand, the centrifugal force generated by the rotating filter element 42 can automatically shed the particulate impurities adhered to the surface of the filter element 42. After shedding, the particulate impurities enter the slag discharge port 311 along the inner wall of the conical hole 31 and are discharged outwards. It has the characteristics of being convenient for disassembling and replacing the filter element 42 and automatically cleaning the particulate impurities on the surface of the filter element 42 before replacing the filter element 42.

[0069] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention.

[0070] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A three-screw pump for quantitative material blocking prevention transportation, comprising a pump body (1) and a discharge pipe (12), wherein the pump body (1) is fixedly connected to the discharge pipe (12), characterized in that: Also includes: A feed pipe (11), the feed pipe (11) comprising a first pipe body (111), a spherical cover (112) and a second pipe body (113), the second pipe body (113) being fixedly connected to the pump body (1), and the spherical cover (112) being distributed between the first pipe body (111) and the second pipe body (113); A material guide assembly (2), the material guide assembly (2) comprising a ball core (21), a material guide channel (211), a fixed shaft (22) and a first annular guide rail (23), the fixed shaft (22) and the first annular guide rail (23) are both fixedly connected to the ball core (21), and the surface of the ball core (21) is provided with a material guide channel (211); A spherical shell (3) distributed between the spherical cover (112) and the spherical core (21), wherein a conical hole (31) is provided on the surface of the spherical shell (3), and a slag drop opening (311) is provided inside the conical hole (31); A separation filter assembly (4), the separation filter assembly (4) comprising a conical shell (41) and a filter element (42), the conical shell (41) being located in the conical hole (31), the filter element (42) being fixedly connected in the conical shell (41), and a first toothed ring (411) being fixedly connected to the outer side of the conical shell (41); A driving module (5), the driving module (5) being connected to one side of the spherical shell (3), and the fixed shaft (22) being in driving connection with the driving module (5); A moving part (6) passing through the spherical shell (3), the moving part (6) being slidably connected between the first annular guide rail (23) and the conical shell (41), the moving part (6) comprising a second annular guide rail (61), a sliding rod (62), a slider (63), a fixing ring (64) and a second return spring (65), the sliding rod (62) being fixedly connected between the slider (63) and the second annular guide rail (61), a rotating ring (412) being fixedly connected to the outer side of the conical shell (41), the rotating ring (412) being rotatably connected in the second annular guide rail (61), the slider (63) being slidably connected to the inner side of the first annular guide rail (23), the fixing ring (64) being fixedly connected to the sliding rod (62), the second return spring (65) being movably sleeved on the surface of the sliding rod (62), and one end of the second return spring (65) being connected to the fixing ring (64); The number of the tapered holes (31) is six, and the six tapered holes (31) are symmetrically distributed about the center of the spherical shell (3), and two of the tapered holes (31) distributed axially along the fixed axis (22) are fixedly connected to a fixing frame (32), and the fixing frame (32) is fixedly connected to a limiting frame (322) and a ratchet ring (321), and the sliding rod (62) passes through the fixing frame (32), and the other end of the second return spring (65) is connected to the fixing frame (32); The material guide assembly (2) further comprises a toothed disc (24) and a limiting disc (25), wherein the toothed disc (24) and the limiting disc (25) are both fixedly connected to the fixed shaft (22), the driving module (5) is fixedly connected to the toothed disc (24), a pawl is provided on the surface of the limiting disc (25), and the ratchet ring (321) is meshedly connected to the pawl; A transmission part (7) connected to the ball shell (3), wherein the transmission part (7) is transmission-connected between the drive module (5) and the first gear ring (411); The transmission part (7) comprises a second gear ring (71), a driven gear (72), a transmission rod (73) and a transmission gear (74); the second gear ring (71) is movably connected in a limiting frame (322); the driven gear (72) and the transmission gear (74) are both fixedly connected to the transmission rod (73); the transmission rod (73) is connected to the fixed frame (32); the driving module (5) is transmission-connected to the inner side of the second gear ring (71); the outer side of the second gear ring (71) is transmission-connected to the driven gear (72); and the first gear ring (411) is transmission-connected to the transmission gear (74); The driving module (5) comprises a driving motor (51), a driving shaft (52), a driving gear (53), an electromagnet (54), a first return spring (55), a limit end (56) and a bracket (57); the driving motor (51) and the bracket (57) are both fixedly connected to a fixing frame (32); the driving motor (51) is connected to the driving shaft (52); the surface and end of the driving shaft (52) are respectively provided with limit ribs and a limit end (56); the driving gear (53) is slidably connected to the driving shaft (52) and the surface of the limit ribs; the surfaces of the bracket (57) and the driving gear (53) are respectively inlaid with an electromagnet (54) and a magnetic ring; the first return spring (55) is connected between the driving gear (53) and the bracket (57); the second gear ring (71) and the toothed disc (24) are both drivingly connected to the driving gear (53).

2. A three-screw pump for quantitative material transportation with anti-blocking according to claim 1, characterized in that: A protrusion (231) is provided on the inner side of the first annular guide rail (23), and the two protrusions (231) are arranged along the direction of the material guiding channel (211), and the direction of the material guiding channel (211) is consistent with the direction of the first tube body (111) and the second tube body (113).

3. A three-screw pump for quantitative material transportation with anti-blocking according to claim 2, characterized in that: A maintenance port (1123) is provided at a position of the spherical cover (112) corresponding to the movable part (6), and a sealing cover (114) is threadedly connected to the maintenance port (1123); a retaining ring (1122) is provided at a position of the inner wall of the spherical cover (112) parallel to the fixed shaft (22), and a slag discharge pipe (1121) is fixedly connected to the retaining ring (1122).

4. A three-screw pump for quantitative material transportation with anti-blocking according to claim 1, characterized in that: The inner walls of the four tapered holes (31) symmetrically distributed about the fixed axis (22) are each provided with a first sealing ring (312) and a second sealing ring (313), and the first sealing ring (312) and the second sealing ring (313) are both in contact with the tapered housing (41).

5. A three-screw pump for quantitative material transportation with anti-blocking according to claim 3, characterized in that: The surface of the conical shell (41) is provided with a plurality of slag passing openings (413).

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