Screw pump with separation cavity

Abstract

The utility model relates to the technical field of screw pumps, in particular to a screw pump with a partition cavity, which comprises a bottom plate, a fixing seat is mounted at the upper end of the bottom plate, a first rotating motor is mounted at one end of the fixing seat, a conveying cavity is mounted at the other end of the fixing seat, and an output cavity is mounted at one end of the conveying cavity. A transmission shaft is installed on an output shaft of the first rotating motor and connected with a connecting shaft through a first universal joint, the connecting shaft is connected with a rotor through a second universal joint, a stator matched with the rotor is arranged in the output cavity, the rotor extends into the output cavity, and a multi-stage purification assembly for filtering fluid is installed at one end of the output cavity. A crushing assembly for crushing fluid impurities is mounted at the upper end of the conveying cavity, a water inlet pipe is mounted at the upper end of the crushing assembly, and a buffer structure is mounted at the lower end of the bottom plate; according to the utility model, not only are impurities and pollutants in fluid effectively removed, but also the damage to the screw pump is avoided by crushing large impurities, and the purity and the discharge quality of the fluid are obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of screw pump technology, and in particular to a screw pump with a diaphragm. Background Technology

[0002] In industrial production and daily life, screw pumps are a commonly used fluid transfer device. Through the sealed cavity formed by the rotor and stator, the fluid is continuously and stably pushed axially when the rotor rotates, achieving efficient transportation. This principle makes it suitable for the transportation of various fluids and is widely used in many fields such as petroleum, chemical, and food.

[0003] However, traditional screw pumps often face the problem of impurities and particulate matter in the fluid when transferring fluids. These impurities and particulate matter not only reduce the purity of the fluid, but also damage the internal structure of the screw pump and shorten the service life of the equipment.

[0004] Therefore, in view of the situation where impurities and particulate matter in the fluid not only reduce the purity of the fluid but also damage the internal structure of the screw pump when the traditional screw pump is used to transfer fluid, a screw pump with a diaphragm can be designed. By adding two chamber structures to the screw pump, not only are impurities and contaminants in the fluid effectively removed, but large impurities and particulate matter are also crushed, avoiding their potential damage to the screw pump, thus significantly improving the purity of the fluid and the quality of the discharge. Utility Model Content

[0005] To overcome the problem that impurities and particulate matter in traditional screw pumps not only reduce the purity of the fluid when transferring fluids, but also damage the internal structure of the screw pump.

[0006] The technical solution of this utility model is as follows: a screw pump with a partitioned cavity includes a base plate, a fixed seat installed on the upper end of the base plate, a first rotary motor installed at one end of the fixed seat, a conveying cavity installed at the other end of the fixed seat, an output cavity installed at one end of the conveying cavity, a drive shaft installed on the output shaft of the first rotary motor, a connecting shaft connected to the drive shaft through a first universal joint, a rotor connected to the connecting shaft through a second universal joint, a stator adapted to the rotor is provided in the output cavity, the rotor extends into the output cavity, a multi-stage purification component for filtering fluid is installed at one end of the output cavity, a crushing component for breaking up fluid impurities is installed at the upper end of the conveying cavity, a water inlet pipe is installed at the upper end of the crushing component, and a buffer structure is installed at the lower end of the base plate.

[0007] Preferably, the crushing assembly includes a crushing box, a second rotary motor, bearing seats, a crushing structure, and a synchronous transmission structure; the second rotary motor is installed at one end of the crushing box, and two bearing seats are symmetrically installed on the inner wall of the right end of the crushing box. The crushing structure is installed in both bearing seats, and the synchronous transmission structure is provided in the crushing structure.

[0008] Preferably, the crushing structure includes a first crushing shaft, a second crushing shaft, and blades; the first crushing shaft is rotatably connected in the bearing housing on the front side, and the second crushing shaft is rotatably connected in the bearing housing on the rear side. One end of the first crushing shaft is connected to the output shaft of the second rotary motor. Blades are fixedly connected around the outer walls of the first and second crushing shafts, and the blades are distributed along the axial direction of the first and second crushing shafts.

[0009] As a preferred embodiment, the synchronous transmission structure includes a driving wheel, a driven wheel, and a belt; the driving wheel is fixedly connected to the outer wall of the first crushing shaft, the driven wheel is fixedly connected to the outer wall of the second crushing shaft, and the driving wheel and the driven wheel rotate together and are connected by a belt.

[0010] Preferably, the purification assembly includes a purification tube, a convex ring, a sealing structure, and a filter screen; one end of the purification tube is fixedly connected to a convex ring, the outer wall of the convex ring is provided with an external thread, the inner wall of the output cavity is provided with an internal thread, the purification tube is threaded into the output cavity, a sealing structure is provided between the output cavity and the purification tube, and two filter screens are horizontally installed in sequence inside the purification tube.

[0011] Preferably, the sealing structure includes a groove and a sealing ring; the outlet of the output chamber has a groove, and the outlet of the purification tube is provided with a sealing ring that matches the groove, with the sealing ring embedded in the groove.

[0012] Preferably, the buffer structure includes a shock absorber and a base; the shock absorber is installed at the lower end of the base plate, and the base supporting the base plate is installed at the lower end of the shock absorber.

[0013] Preferably, the lower end of the base is provided with an anti-slip pad, and the surface of the anti-slip pad is provided with small raised particles.

[0014] The beneficial effects of this utility model are as follows: Compared with traditional screw pumps, this solution, through the combined use of multi-stage purification components and pulverizing components, not only effectively removes impurities and contaminants from the fluid, but also avoids potential damage to the screw pump by pulverizing large impurities and particles, significantly improving the purity and discharge quality of the fluid. At the same time, the addition of a buffer structure greatly reduces the vibration and impact force of the screw pump during operation, enhancing its stability. Compared with screw pumps without buffer design, it is more adaptable to complex and changing working environments. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of the screw pump with a cavity according to this utility model.

[0016] Figure 2 The diagram shown is a three-dimensional disassembled schematic of the screw pump with a cavity according to this utility model.

[0017] Figure 3The image shown is a cross-sectional view of the output chamber of the screw pump with a partition cavity according to this utility model;

[0018] Figure 4 The diagram shown is a three-dimensional structural schematic of the screw pump crushing assembly with a diaphragm cavity according to this utility model.

[0019] Figure 5 The image shown is a cross-sectional view of the screw pump purification assembly with a diaphragm according to this utility model.

[0020] Figure 6 The diagram shown is a three-dimensional structural schematic of the sealing structure of the screw pump with a cavity according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Fixed base; 3. Rotary motor No. 1; 4. Conveying chamber; 5. Output chamber; 6. Drive shaft; 7. Universal joint No. 1; 8. Connecting shaft; 9. Universal joint No. 2; 10. Rotor; 11. Stator; 12. Water inlet pipe; 13. Crushing box; 14. Rotary motor No. 2; 15. Bearing seat; 16. Crushing shaft No. 1; 17. Crushing shaft No. 2; 18. Blade; 19. Drive wheel; 20. Driven wheel; 21. Belt; 22. Purification pipe; 23. Convex ring; 24. Filter screen; 25. Groove; 26. Sealing ring; 27. Shock absorber; 28. Base; 29. ​​Anti-slip pad. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-6This utility model provides an embodiment: a screw pump with a partitioned cavity, including a base plate 1, a fixed seat 2 mounted on the upper end of the base plate 1, a first rotary motor 3 mounted on one end of the fixed seat 2, a conveying cavity 4 mounted on the other end of the fixed seat 2, an output cavity 5 mounted on one end of the conveying cavity 4, a drive shaft 6 mounted on the output shaft of the first rotary motor 3, a connecting shaft 8 connected to the drive shaft 6 via a first universal joint 7, and a rotor 10 connected to the connecting shaft 8 via a second universal joint 9, a stator 11 adapted to the rotor 10 being provided in the output cavity 5, the rotor 10 extending into the output cavity 5, a multi-stage purification component for filtering fluid being mounted on one end of the output cavity 5, a crushing component for breaking down fluid impurities being mounted on the upper end of the conveying cavity 4, a water inlet pipe 12 being mounted on the upper end of the crushing component, and a buffer structure being mounted on the lower end of the base plate 1. The base plate 1 is the foundation support for the entire screw pump. The screw pump is supported by a rotating motor 3, which is the power source of the screw pump. The rotating motor 3 drives the transmission shaft 6 to rotate through the output shaft, thereby driving the rotor 10 to rotate in the output chamber 5. The output chamber 5 is equipped with a stator 11 adapted to the rotor 10, and a sealed fluid transmission channel is formed between the stator 11 and the rotor 10. The multi-stage purification component is used to perform multi-stage filtration and purification treatment on the output fluid, which can remove impurities and contaminants in the fluid and improve the purity and quality of the fluid. The crushing component is used to crush impurities and particulate matter in the fluid. The crushing component uses high-speed rotating blades 18, which can crush impurities and particulate matter in the fluid into smaller particles, thereby avoiding damage to the screw pump by large impurities. The buffer structure is installed at the lower end of the base plate 1 to reduce the vibration and impact force generated by the screw pump during operation and improve the stability of the screw pump.

[0024] Please see Figure 4In this embodiment, the crushing assembly includes a crushing box 13, a second rotary motor 14, bearing seats 15, a crushing structure, and a synchronous transmission structure. The second rotary motor 14 is installed at one end of the crushing box 13. Two bearing seats 15 are symmetrically installed on the inner wall of the right end of the crushing box 13. The crushing structure is installed within both bearing seats 15, and a synchronous transmission structure is provided within the crushing structure. The crushing structure includes a first crushing shaft 16, a second crushing shaft 17, and blades 18. The first crushing shaft 16 is rotatably connected to the front bearing seat 15, and the second crushing shaft 17 is rotatably connected to the rear bearing seat 15. One end of the first crushing shaft 16 is connected to the output shaft of the second rotary motor 14. Blades 18 are fixedly connected around the outer walls of the first and second crushing shafts 16 and 17, and the blades 18 are distributed along the axial direction of the first and second crushing shafts 16 and 17. The synchronous transmission structure includes a driving wheel 19, a driven wheel 20, and a belt 21. The first crushing shaft 16... A drive wheel 19 is fixedly connected to the outer wall of the first crushing shaft 17, and a driven wheel 20 is fixedly connected to the outer wall of the second crushing shaft 17. The drive wheel 19 and the driven wheel 20 are connected to a belt 21 for rotation. The crushing box 13 is the main part of the crushing assembly. It provides a closed space for containing and crushing impurities in the fluid. The second rotary motor 14 is the power source of the crushing assembly. It is sealed and installed at one end of the crushing box 13 by fasteners or brackets. It is connected to the first crushing shaft 16 in the crushing structure through the output shaft, driving the first crushing shaft 16 to rotate. Through the transmission action of the belt 21, the first crushing shaft 16 and the second crushing shaft 17 are rotated synchronously, thereby driving the blades 18 to rotate. This synchronous transmission structure has the advantages of simple structure, reliable transmission, and convenient maintenance. The blades 18 are distributed along the axial direction of the first crushing shaft 16 and the second crushing shaft 17, forming multiple cutting surfaces for crushing impurities and particles in the fluid, avoiding damage to the screw pump by large impurities and particles.

[0025] Please see Figure 5 and Figure 6In this embodiment, the purification assembly includes a purification tube 22, a convex ring 23, a sealing structure, and a filter screen 24. One end of the purification tube 22 is fixedly connected to the convex ring 23, the outer wall of which has an external thread, and the inner wall of the output cavity 5 has an internal thread. The purification tube 22 is threaded into the output cavity 5. A sealing structure is provided between the output cavity 5 and the purification tube 22. Two filter screens 24 are horizontally installed sequentially inside the purification tube 22. The sealing structure includes a groove 25 and a sealing ring 26. The opening of the output cavity 5 has a groove 25, and the opening of the purification tube 22 is provided with a sealing ring 26 that matches the groove 25. The purification tube 22 is the main structure of the purification component, which is used to contain and transport the fluid medium to be purified. The convex ring 23 is threadedly connected to the output cavity 5 by engaging with the internal thread of the output cavity 5, thereby forming a detachable cavity structure. The sealing structure is used to ensure that the fluid medium does not leak at the connection between the purification tube 22 and the output cavity 5. When the purification tube 22 is connected to the output cavity 5, the sealing ring 26 will be embedded in the groove 25 to form a tight seal. The filter screen 24 is used to filter and purify impurities and particulate matter in the fluid medium, so that the discharged fluid is relatively clean.

[0026] Please see Figure 1 In this embodiment, the buffer structure includes a shock absorber 27 and a base 28. The shock absorber 27 is installed at the lower end of the base plate 1, and the base 28 supporting the base plate 1 is installed at the lower end of the shock absorber 27. An anti-slip pad 29 is provided at the lower end of the base 28. The surface of the anti-slip pad 29 is provided with convex small particles. The shock absorber 27 is used to absorb and disperse the impact force from the outside, thereby protecting the base plate 1 and the screw pump above it. The anti-slip pad 29 is installed at the lower end of the base 28 to increase the friction between the base 28 and the ground. The surface of the anti-slip pad 29 is provided with convex small particles, which can increase the contact area with the ground, thereby improving the anti-slip effect.

[0027] In the working process, external fluid is introduced into the crushing chamber 13 through the water inlet pipe 12. At this time, the second rotary motor 14 starts, drives the first crushing shaft 16 to rotate, and drives the drive wheel 19 to rotate together. Through the transmission action of the belt 21, the driven wheel 20 also rotates, which in turn drives the second crushing shaft 17 to rotate. Under the synergistic action of the first crushing shaft 16 and the second crushing shaft 17, the blade 18 starts to rotate, crushing large impurities in the fluid. The crushed fluid then enters the conveying chamber 4.

[0028] At the same time, the No. 1 rotary motor 3 drives the transmission shaft 6 to rotate through its output shaft, which in turn drives the rotor 10 to rotate in the output chamber 5. Through the close cooperation between the stator 11 and the rotor 10, the fluid is smoothly transported to the purification pipe 22. In the purification pipe 22, small particles in the fluid are intercepted by two layers of filter screens 24 in turn, ensuring that the finally discharged fluid is relatively clean.

[0029] If the purification tube 22 needs to be replaced, simply rotate the purification tube 22 and use the threaded connection to easily separate the purification tube 22 from the output chamber 5, thereby facilitating the cleaning and maintenance of the filter screen 24 inside the purification tube 22.

[0030] Through the above steps, compared to traditional screw pumps, this solution, through the combined use of multi-stage purification and pulverizing components, not only effectively removes impurities and contaminants from the fluid, but also avoids potential damage to the screw pump by pulverizing large impurities and particles, significantly improving the purity and discharge quality of the fluid. Simultaneously, the addition of a buffer structure greatly reduces vibration and impact forces on the screw pump during operation, enhancing its stability. Compared to screw pumps without buffer design, it is better suited to complex and changing working environments, solving the problem that in traditional screw pumps, impurities and particles in the fluid not only reduce fluid purity but also damage the internal structure of the screw pump during fluid transmission.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A screw pump with a partitioned cavity, comprising a base plate (1), a fixed seat (2) mounted on the upper end of the base plate (1), a first rotary motor (3) mounted on one end of the fixed seat (2), a conveying cavity (4) mounted on the other end of the fixed seat (2), an output cavity (5) mounted on one end of the conveying cavity (4), a drive shaft (6) mounted on the output shaft of the first rotary motor (3), a connecting shaft (8) connected to the drive shaft (6) via a first universal joint (7), a rotor (10) connected to the connecting shaft (8) via a second universal joint (9), a stator (11) adapted to the rotor (10) being disposed in the output cavity (5), and the rotor (10) extending into the output cavity (5); characterized in that: One end of the output chamber (5) is equipped with a multi-stage purification component for filtering fluid, the upper end of the conveying chamber (4) is equipped with a crushing component for breaking up fluid impurities, the upper end of the crushing component is equipped with a water inlet pipe (12), and the lower end of the base plate (1) is equipped with a buffer structure.

2. The screw pump with a diaphragm according to claim 1, characterized in that: The crushing assembly includes a crushing box (13), a second rotary motor (14), a bearing seat (15), a crushing structure, and a synchronous transmission structure. A second rotary motor (14) is installed at one end of the crushing box (13). Two bearing seats (15) are symmetrically installed on the inner wall of the right end of the crushing box (13). The crushing structure is installed in both bearing seats (15). A synchronous transmission structure is installed in the crushing structure.

3. The screw pump with a diaphragm according to claim 2, characterized in that: The crushing structure includes a first crushing shaft (16), a second crushing shaft (17), and blades (18). The first crushing shaft (16) is rotatably connected in the bearing seat (15) on the front side, and the second crushing shaft (17) is rotatably connected in the bearing seat (15) on the rear side. One end of the first crushing shaft (16) is connected to the output shaft of the second rotary motor (14). Blades (18) are fixedly connected around the outer walls of the first crushing shaft (16) and the second crushing shaft (17). The blades (18) are distributed along the axial direction of the first crushing shaft (16) and the second crushing shaft (17).

4. The screw pump with a diaphragm according to claim 3, characterized in that: The synchronous transmission structure includes a driving wheel (19), a driven wheel (20) and a belt (21); the outer wall of the first crushing shaft (16) is fixedly connected to the driving wheel (19), the outer wall of the second crushing shaft (17) is fixedly connected to the driven wheel (20), and the driving wheel (19) and the driven wheel (20) are connected to the belt (21) for rotation.

5. The screw pump with a diaphragm according to claim 4, characterized in that: The purification assembly includes a purification tube (22), a convex ring (23), a sealing structure, and a filter screen (24). One end of the purification tube (22) is fixedly connected to the convex ring (23). The outer wall of the convex ring (23) is provided with an external thread, and the inner wall of the output cavity (5) is provided with an internal thread. The purification tube (22) is threaded into the output cavity (5). A sealing structure is provided between the output cavity (5) and the purification tube (22). Two filter screens (24) are horizontally installed in sequence inside the purification tube (22).

6. The screw pump with a diaphragm according to claim 5, characterized in that: The sealing structure includes a groove (25) and a sealing ring (26); the outlet of the output chamber (5) is provided with a groove (25), and the outlet of the purification pipe (22) is provided with a sealing ring (26) that matches the groove (25), and the sealing ring (26) is embedded in the groove (25).

7. The screw pump with a diaphragm according to claim 6, characterized in that: The buffer structure includes a shock absorber (27) and a base (28); the shock absorber (27) is installed at the lower end of the base plate (1), and the base (28) supporting the base plate (1) is installed at the lower end of the shock absorber (27).

8. The screw pump with a diaphragm according to claim 7, characterized in that: The lower end of the base (28) is provided with an anti-slip pad (29), and the surface of the anti-slip pad (29) is provided with small raised particles.

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