Screw pump with bridge breaking function

Abstract

The utility model discloses a screw pump with a bridge breaking function, and relates to the technical field of screw pumps. Wherein the screw pump body is provided with a suction chamber; the feeding hopper is located above the suction chamber, an outlet of the feeding hopper is communicated with an inlet of the suction chamber, and an inlet of the feeding hopper is opened upwards; the buffer part is arranged between the suction chamber and the feed hopper, one end of the buffer part is connected with the suction chamber, and the other end is connected with the feed hopper; the bridge breaking device comprises an electromagnetic vibrator, a breaking roller and a permanent magnet; the electromagnetic vibrator is connected with the outer surface of the feeding hopper, the crushing roller is arranged in the feeding hopper and rotationally connected with the feeding hopper, the crushing roller extends in the first direction and penetrates out of the feeding hopper, a permanent magnet is arranged at the end, located outside the feeding hopper, of the crushing roller, and an electromagnet of the electromagnetic vibrator and the permanent magnet are oppositely arranged. And the first direction is perpendicular to the vertical direction. The bridge breaking machine is simple in structure, high in bridge breaking efficiency and low in energy consumption.

Description

Technical Field

[0001] The utility model belongs to the technical field of screw pumps, and in particular relates to a screw pump with a bridge breaking function. Background Art

[0002] The screw pump is a rotor type positive displacement pump, which is a pump body that works according to the principle of rotary meshing positive displacement, and mainly relies on the volume change of the sealed cavity formed by the screw and the bushing to suck and discharge the liquid. The screw pump has the following characteristics: stable flow, small pressure pulsation, certain self-priming ability, low noise, high efficiency, long service life, reliable operation, and can transport high-viscosity media.

[0003] However, in actual use, after the medium enters the suction chamber of the screw pump, it may form a structure like an arch bridge, blocking the subsequent medium from entering, causing the screw pump to become blocked. In the prior art, not only is a crushing roller set to prevent the medium from causing blockage, but a vibrator is also set at the feed hopper of the screw pump to complete the bridge breaking work and solve the blockage problem. However, the existing screw pumps have problems such as complex structure, low bridge breaking efficiency, and high energy consumption. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a screw pump with a bridge breaking function, which has a simple structure, high bridge breaking efficiency and low energy consumption.

[0005] According to the embodiment of the utility model, the screw pump with bridge breaking function comprises:

[0006] The screw pump body has a suction chamber;

[0007] A feed hopper is located above the suction chamber, the outlet of the feed hopper is connected to the inlet of the suction chamber, and the inlet of the feed hopper is open upward;

[0008] A buffer member is disposed between the suction chamber and the feed hopper, wherein one end of the buffer member is connected to the suction chamber and the other end is connected to the feed hopper;

[0009] The bridge breaking device comprises an electromagnetic vibrator, a crushing roller and a permanent magnet; the electromagnetic vibrator is connected to the outer surface of the feed hopper, the crushing roller is arranged inside the feed hopper and is rotatably connected to the feed hopper, the crushing roller extends along a first direction and penetrates to the outside of the feed hopper, the permanent magnet is arranged at one end of the crushing roller outside the feed hopper, the electromagnet of the electromagnetic vibrator is arranged opposite to the permanent magnet to drive the permanent magnet to drive the crushing roller to rotate, and the first direction is perpendicular to the up and down direction.

[0010] The screw pump with bridge breaking function according to the embodiment of the utility model has at least the following beneficial effects: the feed hopper and the suction chamber of the screw pump body are connected, so that the medium in the feed hopper can enter the suction chamber and be transported out by the screw pump body; the feed hopper is provided with a bridge breaking device, and after starting the electromagnetic vibrator, not only can the electromagnetic vibrator drive the wall surface of the feed hopper to vibrate periodically at high frequency, thereby eliminating the relative stability between the media in the feed hopper, so that the medium can flow smoothly from the feed hopper to the suction chamber, but also the electromagnet of the electromagnetic vibrator will produce alternating magnetic attraction and magnetic repulsion on the permanent magnet on the crushing roller. Apply force to cause the permanent magnet to drive the crushing roller to frequently switch between clockwise and counterclockwise rotation states, so that the crushing roller can crush the medium in the feed hopper; through the cooperation of the crushing roller and the electromagnetic vibrator, the stability of the medium in the feed hopper is destroyed, and the bridge breaking work is finally completed to avoid the clogging problem caused by the medium in the feed hopper, which can improve the bridge breaking efficiency. Moreover, the use of the electromagnet of the electromagnetic vibrator to drive the permanent magnet can make the overall structure of the screw pump simple and compact, with low manufacturing cost and low energy consumption; and the buffer can weaken the vibration transmitted from the feed hopper to the screw pump body, so that the screw pump body can operate stably.

[0011] In some embodiments of the present invention, the permanent magnet is a bar magnet, and the permanent magnet extends along a second direction, and the second direction is perpendicular to the first direction and the up-down direction.

[0012] In some embodiments of the present invention, the middle portion of the permanent magnet is connected to one end of the crushing roller.

[0013] In some embodiments of the present invention, the buffer member is a buffer pad, an upper surface of the buffer pad is connected to the feed hopper, and a lower surface of the buffer pad is connected to the suction chamber.

[0014] In some embodiments of the utility model, the electromagnetic vibrator includes a base, an electromagnet, a vibrating body, an armature and a resonance connecting piece, the base is connected to the outer surface of the feed hopper, the electromagnet is located below the base and connected to the base, the vibrating body is located below the electromagnet and connected to the base through a resonance connecting piece, the armature is connected to the vibrating body and is opposite to the electromagnet in upper and lower directions.

[0015] In some embodiments of the utility model, the resonant connecting member is a spring sheet, which is arranged at an angle, and the upper and lower ends of the spring sheet are respectively connected to the base and the vibrating body, and the spring sheet is provided with multiple pieces and is evenly arranged around the central axis of the electromagnet.

[0016] In some embodiments of the utility model, an upper mounting plate and a lower mounting plate are provided on one side of the feed hopper in the first direction, the machine base is connected to the lower surface of the upper mounting plate, and a shock-absorbing foot is provided at the lower end of the vibrating body, and the shock-absorbing foot is in contact with the upper surface of the lower mounting plate.

[0017] In some embodiments of the present invention, the conveying direction of the screw pump body extends along a first direction.

[0018] In some embodiments of the present invention, the permanent magnet is located between the electromagnet and the vibrating body.

[0019] In some embodiments of the present invention, a plurality of convex strips are provided on the outer peripheral surface of the crushing roller.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0022] Figure 1 It is a structural stereogram of a screw pump with a bridge breaking function provided by an embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the connection between the bridge breaking device and the feed hopper in the screw pump with bridge breaking function provided by the embodiment of the utility model;

[0024] Figure 3 It is a structural cross-sectional view of the connection between the bridge breaking device and the feed hopper in the screw pump with bridge breaking function provided by an embodiment of the utility model.

[0025] The markings in the attached drawing are as follows: 100, screw pump body; 110, suction chamber; 200, feed hopper; 210, feed chamber; 300, bridge breaking device; 310, machine base; 320, electromagnet; 330, spring sheet; 340, vibrating body; 350, shock-absorbing foot; 360, crushing roller; 370, permanent magnet; 400, buffer pad. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the utility model, if there is a word description such as "several", it means one or more, and the meaning of "more" is two or more. Greater than, less than, and more than are understood to exclude the number itself, and above, below, and within are understood to include the number itself. If there is a description of the first, second, and third, it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figures 1 to 3 , several embodiments of the screw pump with bridge breaking function of the utility model are given below.

[0031] like Figures 1 to 3 As shown, the screw pump with bridge breaking function provided according to the embodiment of the utility model has a first direction, a second direction and an up-down direction, wherein the first direction is perpendicular to the second direction and the up-down direction respectively, and the second direction is perpendicular to the up-down direction. In this embodiment, it is assumed that the first direction is the front-to-back direction and the second direction is the left-to-right direction.

[0032] The screw pump with bridge breaking function includes a screw pump body 100 , a feed hopper 200 , a buffer and a bridge breaking device 300 .

[0033] The screw pump body 100 has a suction chamber 110, and the inlet of the suction chamber 110 is open upward. It can be understood that the screw pump body 100 is an existing structure, and the suction chamber 110 is one of the components of the screw pump body 100, providing a conveying medium for the screw. Those skilled in the art should understand the specific structure and working principle of the screw pump, which will not be described in detail here.

[0034] The feed hopper 200 is located above the suction chamber 110, and the feed port is hollow inside to form a feed cavity 210, and the feed cavity 210 penetrates the upper surface and the lower surface of the feed hopper 200, thereby forming an inlet and an outlet of the feed hopper 200. The outlet of the feed hopper 200 is connected to the inlet of the suction chamber 110, and the inlet of the feed hopper 200 is open upward.

[0035] It is understandable that the shapes of the feed hopper 200 and its inlet and outlet can be set according to actual conditions and are not specifically limited here. In this embodiment, the feed chamber 210 is a square cavity. The feed hopper 200 is connected to the suction chamber 110 of the screw pump body 100, so that the medium in the feed hopper 200 can enter the suction chamber 110 and be transported out by the screw pump body 100.

[0036] The buffer is disposed between the suction chamber 110 and the feed hopper 200 to play a buffering role. One end of the buffer is connected to the suction chamber 110, and the other end of the buffer is connected to the feed hopper 200. It is understood that the buffer can be a spring or a buffer pad 400.

[0037] The structure of the bridge breaking device 300 includes an electromagnetic vibrator, a breaking roller 360 and a permanent magnet 370 .

[0038] The electromagnetic vibrator can be fixedly connected to the outer surface of the feed hopper 200 by bolts. During the operation of the electromagnetic vibrator, the electromagnetic vibrator can drive the wall surface of the feed hopper 200 to vibrate at high frequency. The setting of the buffer can weaken the vibration transmitted from the feed hopper 200 to the screw pump body 100, reduce the vibration of the screw pump body 100, and enable the screw pump body 100 to operate stably.

[0039] The crushing roller 360 is arranged inside the feed hopper 200 (i.e., the feed chamber 210), and the crushing roller 360 is rotatably connected to the feed hopper 200, and the crushing roller 360 extends along the first direction, and the crushing roller 360 penetrates outside the feed hopper 200. Specifically, the feed hopper 200 is provided with mounting holes on two opposite sides in the first direction, and the crushing roller 360 is arranged through the mounting holes, and the crushing roller 360 and the mounting holes are sealed to prevent the medium from leaking outward from the gap between the mounting holes and the crushing roller 360. The crushing roller 360 is installed in the feed hopper 200 through bearing seats at opposite ends in the first direction, and the bearing seats are installed on the outer surface of the feed hopper 200 by bolts. Such an arrangement enables the crushing roller 360 to rotate relative to the feed hopper 200 around its own central axis. Compared with other vibrators, the electromagnetic vibrator has the characteristics of simple structure, small size, light weight, low power consumption and low failure rate.

[0040] The permanent magnet 370 is arranged on the crushing roller 360, and the permanent magnet 370 is located at one end of the crushing roller 360 outside the feed hopper 200. Moreover, the electromagnet 320 of the electromagnetic vibrator is arranged opposite to the permanent magnet 370. When the electromagnet 320 of the electromagnetic vibrator is powered on, the electromagnet 320 can drive the permanent magnet 370 to drive the crushing roller 360 to rotate. It can be understood that the permanent magnet 370 can be a U-shaped magnet or a bar magnet.

[0041] In the screw pump with bridge breaking function provided in the present embodiment, since the feed hopper 200 is provided with a bridge breaking device 300, when the feed hopper 200 is blocked, the electromagnetic vibrator can be started. Through the operation of the electromagnetic vibrator, the wall surface of the feed hopper 200 is driven to vibrate periodically at high frequency, which can eliminate the relative stability of the medium in the feed hopper 200, and enable the medium to smoothly fall from the feed hopper 200 to the suction chamber 110 of the screw pump body 100. Moreover, when the electromagnet 320 of the electromagnetic vibrator is energized and operated under the condition of alternating current, the electromagnetic The iron 320 will generate a strong alternating magnetic field, so that the electromagnet 320 can sometimes exert a certain magnetic attraction force on the permanent magnet 370 on the crushing roller 360, and sometimes exert a certain magnetic repulsion on the permanent magnet 370. The electromagnet 320 generates alternating magnetic attraction and magnetic repulsion forces on the permanent magnet 370, prompting the permanent magnet 370 to drive the crushing roller 360 to frequently switch and change between clockwise and counterclockwise rotation states, thereby driving the crushing roller 360 to crush the medium in the feed hopper 200 through rotation, thereby accelerating the bridge breaking speed.

[0042] The embodiment of the utility model destroys the stability of the medium in the feed hopper 200 through the cooperation between the crushing roller 360 and the electromagnetic vibrator, and finally completes the bridge breaking work, avoiding the problem of medium clogging in the feed hopper 200, and can increase the bridge breaking speed and improve the bridge breaking efficiency; at the same time, the electromagnet 320 of the electromagnetic vibrator is used as a power source to drive the permanent magnet 370 on the crushing roller 360, saving the motor used to drive the crushing roller 360 to rotate, which can make the overall structure of the screw pump simple and compact, with low manufacturing cost and low energy consumption.

[0043] In this embodiment, if Figure 3 As shown, the permanent magnet 370 is a bar magnet, and the length direction of the permanent magnet 370 extends along the second direction. This arrangement can reduce the space occupied by the permanent magnet 370 and prevent the permanent magnet 370 from affecting the normal operation of the electromagnetic vibrator.

[0044] In a specific example, one end of the permanent magnet 370 is fixed to the end of the crushing roller 360 close to the electromagnetic vibrator by welding or bolting. Then, when the electromagnetic vibrator is working, the end of the permanent magnet 370 away from the crushing roller 360 will be affected by the magnetic field of the electromagnet 320 of the electromagnetic vibrator, and drive the crushing roller 360 to rotate.

[0045] In another specific example, the middle of the permanent magnet 370 is fixedly connected to one end of the crushing roller 360. When the electromagnet 320 of the electromagnetic vibrator is powered on, both ends of the permanent magnet 370 are acted upon by the magnetic field of the electromagnet 320, and the forces acting on the two ends of the permanent magnet 370 are in opposite directions, so that the crushing roller 360 can rotate quickly and stably, and the rotation direction changes alternately.

[0046] Furthermore, when the electromagnetic vibrator loses power and stops running, the crushing roller 360 stops rotating. At the same time, the permanent magnet 370 tends to a balanced state, so that the opposite ends of the permanent magnet 370 are located in a horizontal plane, so that when the electromagnetic vibrator is started next time, the length direction of the permanent magnet 370 is perpendicular to the direction of the magnetic field generated by the electromagnetic vibrator, making it easier for the permanent magnet 370 to rotate.

[0047] In this embodiment, if Figures 1 to 3 As shown, the buffer member is a buffer pad 400. The upper surface of the buffer pad 400 is connected to the feed hopper 200, and the lower surface of the buffer pad 400 is connected to the suction chamber 110. From a top view, the buffer pad 400 is in a "U" shape so that the medium in the feed hopper 200 flows to the suction chamber 110. The buffer pad 400 can be a rubber pad.

[0048] In this embodiment, if Figures 1 to 3 As shown, the structure of the electromagnetic vibrator includes an organic base 310, an electromagnet 320, a vibrating body 340, an armature and a resonance connecting member.

[0049] Among them, the base 310 can be fixedly connected to the outer surface of the feed hopper 200 by bolts, and the electromagnet 320 is located below the base 310, and the electromagnet 320 is fixedly connected to the base 310. The vibrating body 340 is located below the electromagnet 320, and the vibrating body 340 is connected to the base 310 by a resonant connector. The resonant connector can be a spring or a spring sheet 330. Due to the setting of the resonant connector, the vibrating body 340 moves relative to the base 310 and causes vibration. The armature can be connected to the vibrating body 340 by welding, bolting, etc., and the armature and the electromagnet 320 are opposite to each other up and down.

[0050] Therefore, when the electromagnet 320 works under the condition of alternating current, the armature will be affected by the alternating magnetic field of the electromagnet 320, so that the armature can drive the vibrating body 340 to approach or move away from the electromagnet 320, and this cycle will repeat over and over again. The vibrating body 340 will vibrate back and forth at the frequency of the alternating current, thereby driving the feed hopper 200 to vibrate at a high frequency, exerting a bridge-breaking effect on the medium in the feed hopper 200.

[0051] In a specific example, the resonant connection member is a spring sheet 330, which is arranged obliquely, and the upper end of the spring sheet 330 is fixedly connected to the base 310 by screws, and the lower end of the spring sheet 330 is fixedly connected to the vibrating body 340 by screws. There are multiple spring sheets 330, and the multiple spring sheets 330 are evenly arranged around the central axis of the electromagnet 320.

[0052] The base 310 and the vibrating body 340 may adopt a disc-shaped structure, the electromagnet 320 is located in the middle position below the base 310, and the armature is located in the middle position of the vibrating body 340, and the armature may be disc-shaped. There are four spring sheets 330, which are respectively located on the front, back, left, and right sides of the vibrating body 340. It is understandable that when the vibrating body 340 reciprocates, the spring sheets 330 will be deformed by force.

[0053] In this embodiment, if Figures 1 to 3 As shown, the feed hopper 200 is provided with an upper mounting plate and a lower mounting plate. Specifically, the upper mounting plate and the lower mounting plate are both located on one side of the feed hopper 200 in the first direction, the upper mounting plate and the lower mounting plate are arranged opposite to each other up and down, and the upper mounting plate and the lower mounting plate are integrally formed with the feed hopper 200.

[0054] The base 310 is fixedly connected to the lower surface of the upper mounting plate. A shock-absorbing foot 350 is provided at the lower end of the vibrating body 340. The shock-absorbing foot 350 can be made of a rubber material, and the shock-absorbing foot 350 is in contact with the upper surface of the lower mounting plate. When the electromagnetic vibrator stops running, the shock-absorbing foot 350 presses against the lower mounting plate, which can provide a certain support effect, thereby reducing the gravity effect of the electromagnetic vibrator on the upper mounting plate. Moreover, during the reciprocating vibration of the vibrating body 340, the provision of the shock-absorbing foot 350 can prevent the vibrating body 340 from having a strong collision with the lower mounting plate and causing noise problems.

[0055] In this embodiment, if Figure 1 As shown, the conveying direction of the screw pump body 100 extends along the first direction, and the bridge breaking device 300 is located on one side of the screw pump body 100 in the first direction. Such a design can reduce the occupied space of the screw pump with the bridge breaking function in the second direction. The bridge breaking device 300 can be located on the side of the screw pump body 100 close to the motor configured therewith, or on the side of the screw pump body 100 away from the motor configured therewith.

[0056] Of course, it is not excluded that the conveying direction of the screw pump body 100 extends along the second direction.

[0057] In this embodiment, if Figure 3 As shown, the permanent magnet 370 is located between the electromagnet 320 and the vibrating body 340. This arrangement can reduce the vertical distance between the permanent magnet 370 and the electromagnet 320, so that the permanent magnet 370 can be subjected to a larger magnetic field and can rotate more easily.

[0058] Furthermore, considering that the rotation of the permanent magnet 370 may interfere with or collide with the vibrating body 340, an avoidance groove or avoidance hole with an upward opening may be provided in the middle of the vibrating body 340, so that the permanent magnet 370 can rotate between the electromagnet 320 and the vibrating body 340 without causing collision problems.

[0059] Of course, it is not excluded that the permanent magnet 370 is disposed below the vibrating body 340 . In this case, sufficient space needs to be left between the vibrating body 340 and the lower mounting plate so that the permanent magnet 370 can drive the crushing roller 360 to rotate.

[0060] In this embodiment, if Figure 3 As shown, the outer circumferential surface of the crushing roller 360 is provided with a plurality of convex strips. Specifically, the crushing roller 360 is provided with a plurality of groups of convex strips at a certain interval along its extension direction, each group of convex strips includes a plurality of convex strips, and the plurality of convex strips are evenly arranged around the circumference of the crushing roller 360. The convex strips are integrally formed with the crushing roller 360. When the permanent magnet 370 drives the crushing roller 360 to rotate, the convex strips rotate together with the crushing roller 360 to stir and loosen the medium in the feed hopper 200, so as to speed up the speed of breaking the arch and clearing the blockage of the medium in the feed hopper 200.

[0061] The preferred implementation methods of the utility model are described in detail above, but the invention of the utility model is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the utility model. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A screw pump with bridge breaking function, characterized in that: include: The screw pump body has a suction chamber; A feed hopper is located above the suction chamber, the outlet of the feed hopper is connected to the inlet of the suction chamber, and the inlet of the feed hopper is open upward; A buffer member is disposed between the suction chamber and the feed hopper, wherein one end of the buffer member is connected to the suction chamber and the other end is connected to the feed hopper; The bridge breaking device comprises an electromagnetic vibrator, a crushing roller and a permanent magnet; the electromagnetic vibrator is connected to the outer surface of the feed hopper, the crushing roller is arranged inside the feed hopper and is rotatably connected to the feed hopper, the crushing roller extends along a first direction and penetrates to the outside of the feed hopper, the permanent magnet is arranged at one end of the crushing roller outside the feed hopper, the electromagnet of the electromagnetic vibrator is arranged opposite to the permanent magnet to drive the permanent magnet to drive the crushing roller to rotate, and the first direction is perpendicular to the up and down direction.

2. The screw pump with bridge breaking function according to claim 1, characterized in that: The permanent magnet is a bar magnet, and the permanent magnet extends along a second direction, and the second direction is perpendicular to the first direction and the up-down direction.

3. The screw pump with bridge breaking function according to claim 2, characterized in that: The middle part of the permanent magnet is connected to one end of the crushing roller.

4. The screw pump with bridge breaking function according to claim 1, characterized in that: The buffer member is a buffer pad, an upper surface of the buffer pad is connected to the feed hopper, and a lower surface of the buffer pad is connected to the suction chamber.

5. The screw pump with bridge breaking function according to claim 1, characterized in that: The electromagnetic vibrator includes a base, an electromagnet, a vibrating body, an armature and a resonance connecting piece. The base is connected to the outer surface of the feed hopper, the electromagnet is located below the base and connected to the base, the vibrating body is located below the electromagnet and connected to the base through a resonance connecting piece, and the armature is connected to the vibrating body and is opposite to the electromagnet in upper and lower directions.

6. The screw pump with bridge breaking function according to claim 5, characterized in that: The resonant connecting member is a spring sheet, which is arranged obliquely, and the upper end and the lower end of the spring sheet are respectively connected to the base and the vibrating body. The spring sheet is provided with a plurality of pieces and is evenly arranged around the central axis of the electromagnet.

7. The screw pump with bridge breaking function according to claim 5, characterized in that: The feed hopper is provided with an upper mounting plate and a lower mounting plate on one side in the first direction, the machine base is connected to the lower surface of the upper mounting plate, and the lower end of the vibrating body is provided with a shock absorbing foot, and the shock absorbing foot is in contact with the upper surface of the lower mounting plate.

8. The screw pump with bridge breaking function according to claim 7, characterized in that: The conveying direction of the screw pump body extends along a first direction.

9. The screw pump with bridge breaking function according to claim 5, characterized in that: The permanent magnet is located between the electromagnet and the vibrating body.

10. The screw pump with bridge breaking function according to claim 1, characterized in that: The outer peripheral surface of the crushing roller is provided with a plurality of convex strips.

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