Auger blade screw pump

Abstract

The utility model discloses an auger blade screw pump, which relates to the technical field of screw pumps and comprises a working frame, the top of the working frame is sequentially provided with a driving motor, a speed reducer, a suction chamber and a pump shell, the speed reducer, the suction chamber and the pump shell are fixedly connected with one another, and an output shaft of the driving motor is provided with a rotating column. The rotating column sequentially penetrates through the speed reducer, the suction chamber and the interior of the pump shell, conveying blades on the rotating column are driven by the driving motor, the situation that the working efficiency of the pump is affected due to the fact that media which are not completely melted are deposited at the bottom of the suction chamber and accumulated can be avoided, and then large blocky media blocked by a filtering plate are smashed through smashing rods on a cleaning plate. Therefore, blocky media can be prevented from entering the pump shell to clamp gaps of the screw rotor or the feeding stator, normal operation of the auger blade screw pump can be guaranteed, meanwhile, the probability that the screw or the pump body is damaged can be reduced, and therefore the equipment maintenance cost and the production and machining cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of screw pumps, in particular to an auger blade screw pump. Background Art

[0002] With the progress of technology and the development of industry, as a positive displacement pump widely used in the industrial field, the auger blade screw pump shows efficient, stable and reliable performance when transporting various media with its unique structure and advantages;

[0003] When the existing screw pump transports a medium with solid-liquid mixture and certain viscosity and hardness, due to the irregular shape and high hardness of these massive media, these media may get stuck in the screw or the pump body gap during the flow process in the pump body, resulting in the pump body being stuck, seriously affecting the normal operation of the pump, and at the same time, it may also cause damage to the screw or the pump body, thereby increasing the equipment maintenance cost and the production and processing cost. Content of the Utility Model

[0004] In view of this, aiming at the deficiencies of the existing technology, the utility model provides an auger blade screw pump to solve the problem that the existing technology may get stuck in the screw or the pump body gap when transporting relatively hard massive media, resulting in the pump body being stuck.

[0005] To achieve the above object, the utility model provides the following technical solution: an auger blade screw pump, including a working frame, a driving motor, a speed reducer, a suction chamber and a pump housing are sequentially arranged on the top of the working frame, the speed reducer, the suction chamber and the pump housing are fixedly connected to each other, a rotating column is arranged on the output shaft of the driving motor, the rotating column sequentially penetrates through the speed reducer, the suction chamber and the inside of the pump housing, a conveying paddle and a screw rotor are sequentially arranged on the outer surface of the rotating column, the conveying paddle is located inside the suction chamber, and the screw rotor is located inside the pump housing, a feeding stator is arranged on the inner surface of the pump housing, the feeding stator and the screw rotor are adapted to each other, and a filter plate is arranged between the suction chamber and the pump housing; a cleaning plate is arranged on the outer surface of the rotating column, the cleaning plate is located inside the suction chamber, and a plurality of crushing rods are arranged on one side of the cleaning plate, and all the plurality of crushing rods are attached to the filter plate; a feeding pipe is arranged on the top of the suction chamber, and a discharging pipe is arranged on one side of the pump housing.

[0006] Preferably, the whole conveying paddle is spiral, which is used to prevent the uncompletely melted medium from precipitating at the bottom of the inner cavity of the suction chamber, the whole screw rotor is spiral, and the feeding stator and the screw rotor are meshed with each other, which is used to continuously suck in and discharge the medium for cyclic operation.

[0007] Preferably, the feeding stator is made of rubber material, which is used to reduce the consumption cost of equipment production and processing, and the outer surface of the screw rotor is coated with a metal coating, which is used to increase the wear resistance of the screw rotor.

[0008] Preferably, the cleaning plate is evenly provided with openings to ensure that the medium is smoothly transported to the inside of the pump casing, and the plurality of the crushing rods are staggered with each other to improve the effect of crushing the bulk medium.

[0009] Preferably, a plurality of connecting rods are arranged between the discharge pipe and the suction chamber, and a first groove and a second groove are sequentially opened at both ends of the plurality of connecting rods, the first groove is connected to the second groove, and a limiting groove is opened inside the second groove.

[0010] Preferably, both ends of the plurality of connecting rods are sleeved with clamping cylinders, the inner surfaces of the clamping cylinders are evenly provided with limiting cylinders, the insides of the limiting cylinders are provided with limiting shafts, telescopic springs are provided between the limiting shafts and the inside of the limiting cylinders, and the telescopic springs are sleeved inside the limiting cylinders.

[0011] Preferably, the limiting cylinder is matched with the first groove and the second groove, and the limiting shaft is matched with the limiting groove, which is used to ensure that the clamping cylinder can be quickly clamped on both ends of the connecting rod.

[0012] Preferably, a pull ring is provided at one end of the limit shaft, which is used to facilitate workers to quickly disassemble and install the clamping cylinder. Indicator marks are provided on the clamping cylinder and the discharge pipe, which are used to facilitate workers to determine whether the clamping cylinder and the connecting rod are fully engaged.

[0013] Compared with the prior art, the utility model provides an auger blade screw pump, which has the following beneficial effects:

[0014] By driving the conveying paddles on the rotating column driven by the driving motor, it is possible to prevent the incompletely melted medium from settling at the bottom of the suction chamber and affecting the working efficiency of the pump. The larger block media blocked by the filter plate can be crushed by the crushing rods on the cleaning plate. This can prevent the block media from entering the pump casing and getting stuck in the screw rotor or the feeding stator gap, thereby ensuring the normal operation of the auger blade screw pump. At the same time, it can also reduce the probability of damage to the screw or pump body, thereby reducing the equipment maintenance cost and production and processing cost.

[0015] By manually pulling the pull ring, the three limiting shafts slide outwards, continuously squeezing the telescopic spring, and causing the limiting shafts to disengage from the limiting grooves. Then, by rotating the clamping cylinder counterclockwise, the limiting cylinder slides from the second groove to the inside of the first groove and pulls the clamping cylinder away from the connecting rod direction, prompting them to disengage from each other. Thus, the rapid replacement of the feeding stator can be achieved, which not only facilitates maintenance and shortens the maintenance time, but also ensures the efficient operation of the pump and improves the overall efficiency of the equipment. Brief Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the whole of the present utility model;

[0017] Figure 2 It is a front view structural schematic diagram of the whole of the present utility model;

[0018] Figure 3 It is a schematic cross-sectional view of the suction chamber and the pump housing in the present utility model;

[0019] Figure 4 It is an enlarged structural diagram of the screw rotor in the present utility model;

[0020] Figure 5 It is an exploded structural diagram of the clamping cylinder in the present utility model;

[0021] Figure 6 It is an exploded cross-sectional view of the clamping cylinder in the present utility model.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1, working frame; 2, driving motor; 3, reducer; 4, suction chamber; 5, pump housing; 6, feed pipe; 7, discharge pipe; 8, rotating column; 9, conveying paddle; 10, filter plate; 11, cleaning plate; 12, feeding stator; 13, screw rotor; 14, through hole; 15, crushing rod; 16, connecting rod; 17, first groove; 18, second groove; 19, limiting groove; 20, clamping cylinder; 21, limiting cylinder; 22, telescopic spring; 23, limiting shaft; 24, indicating mark; 25, pull ring. Detailed Description of the Preferred Embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Next, the present utility model will be further described in detail according to the drawings and embodiments. Embodiment

[0026] Please refer to Figures 1 to 4 As shown, to solve the problems mentioned in the technical solution, an auger blade screw pump is provided in an embodiment of the present application, including a working frame 1. A driving motor 2, a reducer 3, a suction chamber 4, and a pump casing 5 are sequentially arranged on the top of the working frame 1. The reducer 3, the suction chamber 4, and the pump casing 5 are fixedly connected to each other. Among them, the reducer 3, the suction chamber 4, and the pump casing 5 are integrally designed, which can prevent the problem of medium leakage; a rotating column 8 is arranged on the output shaft of the driving motor 2. The rotating column 8 sequentially penetrates through the reducer 3, the suction chamber 4, and the inside of the pump casing 5. A conveying paddle 9 and a screw rotor 13 are sequentially arranged on the outer surface of the rotating column 8. The conveying paddle 9 is located inside the suction chamber 4, and the screw rotor 13 is located inside the pump casing 5. A feeding stator 12 is arranged on the inner surface of the pump casing 5. The feeding stator 12 and the screw rotor 13 are adapted to each other. A filter plate 10 is arranged between the suction chamber 4 and the pump casing 5; a cleaning plate 11 is arranged on the outer surface of the rotating column 8. The cleaning plate 11 is located inside the suction chamber 4. A plurality of crushing rods 15 are arranged on one side of the cleaning plate 11. The plurality of crushing rods 15 are all in contact with the filter plate 10; a feed pipe 6 is arranged on the top of the suction chamber 4, and a discharge pipe 7 is arranged on one side of the pump casing 5.

[0027] It should be noted that the conveying paddle 9 is integrally spiral, which is used to prevent the incompletely melted medium from precipitating at the bottom of the inner cavity of the suction chamber 4. Among them, the medium precipitated at the bottom of the inner cavity of the suction chamber 4 is conveyed to the inside of the pump casing 5 through the spiral conveying paddle 9, thereby improving the conveying efficiency of the pump casing 5; in addition, the screw rotor 13 is integrally spiral, and the feeding stator 12 and the screw rotor 13 are meshed with each other. It is used to continuously suck and discharge the medium for cyclic operation. Among them, the screw rotor 13 rotates and meshes and squeezes with the feeding stator 12 that wraps it, thereby generating two to three sealing cavities inside the pump casing 5. As the rotor rotates continuously, the sealing cavities continuously discharge the medium to the outside and form a negative pressure, and then suck the medium through the internal and external pressure difference, thereby realizing cyclic operation; at the same time, the feeding stator 12 is made of rubber material, which is used to reduce the production and processing consumption cost of the equipment, and the outer surface of the screw rotor 13 is coated with a metal coating, which is used to increase the wear resistance of the screw rotor 13, thereby reducing the production and processing cost of the equipment; through holes 14 are evenly arranged on the cleaning plate 11, which is used to ensure the smooth conveyance of the medium to the inside of the pump casing 5. The plurality of crushing rods 15 are staggered with each other, which is used to improve the effect of crushing the blocky medium.

[0028] Further embodiments:

[0029] Please refer to Figure 1 、 Figure 3 、 Figure 5 and Figure 6As shown in the figure, a plurality of connecting rods 16 are provided between the discharge pipe 7 and the suction chamber 4. First grooves 17 and second grooves 18 are sequentially formed at both ends of the plurality of connecting rods 16. The first groove 17 communicates with the second groove 18, and a limiting groove 19 is formed inside the second groove 18. Among them, the second groove 18 is adapted to the limiting cylinder 21, so that the limiting shaft 23 on the limiting cylinder 21 can be aligned with the limiting groove 19 to facilitate the subsequent mutual engagement work; and clamping cylinders 20 are sleeved at both ends of the plurality of connecting rods 16. Limiting cylinders 21 are uniformly arranged on the inner surface of the clamping cylinder 20. Limiting shafts 23 are arranged inside the limiting cylinders 21. A telescopic spring 22 is arranged between the limiting shaft 23 and the inside of the limiting cylinder 21. The telescopic springs 22 are all sleeved inside the limiting cylinder 21. Among them, a resisting block is arranged on the outer surface of the limiting shaft 23, which is connected to one end of the telescopic spring 22 to facilitate the limiting shaft 23 to slide into the limiting groove 19 and limit the movement range of the limiting shaft 23; at the same time, the limiting cylinder 21 is adapted to the first groove 17 and the second groove 18, and the limiting shaft 23 is adapted to the limiting groove 19, which is used to ensure that the clamping cylinder 20 can be quickly engaged at both ends of the connecting rod 16; in addition, a pull ring 25 is commonly arranged at one end of the limiting shaft 23, which is used to facilitate workers to quickly disassemble and install the clamping cylinder 20. Indicator marks 24 are arranged on both the clamping cylinder 20 and the discharge pipe 7, which are used to facilitate workers to determine whether the clamping cylinder 20 and the connecting rod 16 are engaged.

[0030] The working principle of all the contents in the above embodiments is as follows:

[0031] In use, first, the worker starts the driving motor 2, which drives the rotating column 8 to rotate through the speed reducer 3, and then drives the conveying paddle 9 and the screw rotor 13 thereon to rotate. At the same time, the feed pipe 6 and the external material conveying pipe convey the medium into the suction chamber 4, and the conveying paddle 9 conveys it into the pump housing 5, which can avoid the precipitation of incompletely melted medium at the bottom of the suction chamber 4 and affect the working efficiency of the pump. Moreover, larger blocky media in the medium are blocked by the filter plate 10. Subsequently, the blocky media are crushed by the cleaning plate 11 on the rotating column 8 and the staggered crushing rods 15, so that their volume can pass through the filter plate 10 and enter the pump housing 5, which can avoid blocky media entering the pump housing 5 and jamming the clearance between the screw rotor 13 and the feeding stator 12. Then, the screw rotor 13 and the feeding stator 12 wrapping it are meshed and extruded with each other, thus generating two to three sealed cavities inside the pump housing 5. As the rotor rotates continuously, the sealed cavities continuously discharge the medium to the outside and form a negative pressure, and then suck the medium continuously through the internal and external pressure difference, thus realizing the cyclic operation. When the feeding stator 12 is damaged and needs to be replaced, the worker first manually pulls the pull ring 25, so that the three limit shafts 23 slide outwards and continuously squeeze the telescopic spring 22 until the limit shafts 23 are disengaged from the limit grooves 19. Then, the clamping cylinder 20 is rotated counterclockwise, so that the limit cylinder 21 in the clamping cylinder 20 slides from the second groove 18 to the first groove 17. Then, the clamping cylinder 20 is pulled in the direction away from the connecting rod 16 to make them disengage from each other. Then, the other clamping cylinders 20 are disengaged in the same way as above. Subsequently, the discharge pipe 7 can be disassembled, and then the damaged feeding stator 12 can be taken out and replaced. Then, the installation can be carried out according to the reverse steps as above.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auger blade screw pump, comprising a working frame (1), wherein a driving motor (2), a reducer (3), a suction chamber (4) and a pump casing (5) are sequentially arranged on the top of the working frame (1), wherein the reducer (3), the suction chamber (4) and the pump casing (5) are fixedly connected to each other, and an output shaft of the driving motor (2) is provided with a rotating column (8), wherein the rotating column (8) sequentially passes through the reducer (3), the suction chamber (4) and the pump casing (5), and wherein: The outer surface of the rotating column (8) is provided with a conveying blade (9) and a screw rotor (13) in sequence, the conveying blade (9) is located inside the suction chamber (4), and the screw rotor (13) is located inside the pump casing (5), the inner surface of the pump casing (5) is provided with a feeding stator (12), the feeding stator (12) and the screw rotor (13) are adapted to each other, and a filter plate (10) is provided between the suction chamber (4) and the pump casing (5); A cleaning plate (11) is provided on the outer surface of the rotating column (8), the cleaning plate (11) is located inside the suction chamber (4), a plurality of stirring rods (15) are provided on one side of the cleaning plate (11), and the plurality of stirring rods (15) are all in contact with the filter plate (10); A feed pipe (6) is provided at the top of the suction chamber (4), and a discharge pipe (7) is provided at one side of the pump housing (5).

2. The auger blade screw pump according to claim 1, characterized in that: The conveying blade (9) is spiral-shaped as a whole, and is used to prevent incompletely melted medium from settling on the bottom of the inner cavity of the suction chamber (4). The screw rotor (13) is spiral-shaped as a whole, and the feeding stator (12) and the screw rotor (13) are meshed with each other, so that they can continuously suck in and discharge the medium to perform a cyclic operation.

3. The auger blade screw pump according to claim 2, characterized in that: The feeding stator (12) is made of rubber material, which is used to reduce the consumption cost of equipment production and processing, and the outer surface of the screw rotor (13) is plated with a metal coating, which is used to increase the wear resistance of the screw rotor (13).

4. The auger blade screw pump according to claim 3, characterized in that: The cleaning plate (11) is evenly provided with openings (14) for ensuring that the medium is smoothly transported to the interior of the pump housing (5). The plurality of crushing rods (15) are arranged in an interlaced manner for improving the effect of crushing the bulk medium.

5. The auger blade screw pump according to claim 1, characterized in that: A plurality of connecting rods (16) are provided between the discharge pipe (7) and the suction chamber (4), and a first groove (17) and a second groove (18) are provided at both ends of the plurality of connecting rods (16), the first groove (17) is connected to the second groove (18), and a limiting groove (19) is provided inside the second groove (18).

6. The auger vane screw pump according to claim 5, characterized in that: Both ends of the plurality of connecting rods (16) are sleeved with a clamping tube (20), the inner surface of the clamping tube (20) is evenly provided with a limiting tube (21), the inside of the limiting tube (21) is provided with a limiting shaft (23), a telescopic spring (22) is provided between the limiting shaft (23) and the inside of the limiting tube (21), and the telescopic spring (22) is sleeved inside the limiting tube (21).

7. The auger vane screw pump according to claim 6, characterized in that: The limiting cylinder (21) is matched with the first groove (17) and the second groove (18), and the limiting shaft (23) is matched with the limiting groove (19), which is used to ensure that the clamping cylinder (20) can be quickly clamped on both ends of the connecting rod (16).

8. The auger vane screw pump according to claim 7, characterized in that: A pull ring (25) is provided at one end of the limit shaft (23) for facilitating workers to quickly disassemble and install the clamping cylinder (20). Indicator marks (24) are provided on the clamping cylinder (20) and the discharge pipe (7) for facilitating workers to determine whether the clamping cylinder (20) and the connecting rod (16) are fully engaged.

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