Vertical long-shaft supported long-shaft submerged slurry pump

Abstract

The present disclosure relates to the technical field of submerged slurry pump, and one embodiment of the present disclosure provides a vertical unsupported long-shaft submerged slurry pump, which comprises a mounting plate, a sleeve, a pump shaft pipe, a supporting rod, a motor and a conveying mechanism, the sleeve is fixedly connected to the top end of the mounting plate, the pump shaft pipe is rotatably connected in the sleeve, a rotating hole is formed in the mounting plate, the pump shaft pipe is rotatably connected in the rotating hole, the supporting rod is arranged in the pump shaft pipe through an adjusting mechanism, the adjusting mechanism is used for adjusting the position of the supporting rod, the motor is installed at the top end of the sleeve, the output end of the motor is fixedly connected to the top end of the pump shaft pipe, and the conveying mechanism is arranged on the mounting plate and used for conveying slurry. Through the above technical scheme, the technical problem that the cost of enterprises is increased due to the high cost of bearings used for supporting the pump shaft to rotate and improving the stability of the pump shaft during rotation is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of submersible slurry pump technology, and more specifically, to a vertical, unsupported, long-shaft submersible slurry pump. Background Technology

[0002] As a typical representative of vertical single-stage single-suction cantilever centrifugal pumps, submersible slurry pumps occupy an important position in the field of slurry transportation due to their unique design. Submersible slurry pumps adopt a semi-open impeller and are equipped with stirring blades. This structure can pre-stir and disperse the slurry entering the pump body. Combined with the flow parts made of wear-resistant materials such as high chromium alloy, it can not only withstand the continuous scouring of high concentration solid particles, but also reduce the wear of the medium on the pump body. The vertical installation design makes its footprint only about 60% of that of a horizontal pump of the same specifications. There is no need to disassemble the pipeline during maintenance, which greatly reduces the difficulty of maintenance.

[0003] In actual operation, the centrifugal force generated by the high-speed rotation of the impeller driven by the motor can efficiently eject the slurry, with a flow rate ranging from tens to thousands of cubic meters per hour. It is widely applicable to complex scenarios such as tailings from mining and wastewater treatment plants, and can effectively avoid the clogging problems that are common in traditional pumps. However, in the pump shaft rotation process, existing technologies mostly rely on high-precision bearings for stable support. Although these bearings can control the radial runout of the pump shaft within 0.05mm, ensuring the long-term operational stability of the equipment, the high purchase cost and subsequent replacement expenses bring considerable economic pressure to companies that use them for a long time. This is especially true for small and medium-sized mining enterprises and wastewater treatment plants, where bearing-related expenses have become an important part of the equipment's operating costs. Summary of the Invention

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a vertical unsupported long-shaft submersible slurry pump, which solves the technical problem that the pump shaft is supported by bearings to increase the stability of the pump shaft during rotation in the prior art. However, such bearings are expensive, which increases the operating costs of enterprises.

[0005] According to one aspect, at least one embodiment of this disclosure provides a vertical, unsupported, long-shaft submersible slurry pump, including a mounting plate, and further comprising: a sleeve, a pump shaft tube, a support rod, a motor, and a conveying mechanism. The sleeve is fixedly connected to the top end of the mounting plate, the pump shaft tube is rotatably connected inside the sleeve, the mounting plate has a rotating hole, the pump shaft tube is rotatably connected inside the rotating hole, the support rod is disposed inside the pump shaft tube by an adjusting mechanism, the adjusting mechanism being used to adjust the position of the support rod, the motor is mounted on the top end of the sleeve, the output end of the motor is fixedly connected to the top end of the pump shaft tube, and the conveying mechanism is disposed on the mounting plate for conveying slurry.

[0006] For conveying slurry, the conveying mechanism includes: a conveying pipe, a tee pipe, a pump casing, and a blade. There are two conveying pipes, both of which are fixedly connected to a mounting plate. The bottom end of the tee pipe is connected to the top end of the two conveying pipes. The pump casing is connected to the top end of the two conveying pipes. The blade is rotatably connected inside the pump casing. The bottom end of the pump shaft pipe passes through the pump casing and is fixedly connected to the blade. The bottom end of the pump casing has a liquid inlet.

[0007] To adjust the position of the support rod, the adjustment mechanism includes: a fixed box, a drive frame, a drive assembly, and a fixed assembly. A through groove is formed on the pump shaft tube, and the fixed box is disposed within the through groove. A sliding groove is formed on the support rod, and the fixed box is slidably connected within the sliding groove. The drive frame is fixedly connected within the sliding groove. An adjustment groove is formed on the fixed box, and the drive frame is slidably connected within the adjustment groove. The drive assembly is disposed within the fixed box and is used to move and adjust the drive frame and support rod on the fixed box. The fixed assembly is disposed on two conveying pipes and is used to support and limit the movement of the support rod and the fixed box.

[0008] To drive the support rod to move in position, the drive assembly includes a drive screw and a hexagonal block. The drive screw is rotatably connected to the fixed box. The drive frame has a screw hole, and the drive screw is threaded into the screw hole. The hexagonal block is fixedly connected to one end of the drive screw.

[0009] To ensure the fixed box rotates with the pump shaft tube, the fixing assembly includes: a fixing ring, a connecting rod, and a stabilizer. Fixing rings are fixedly connected to both of the two delivery pipes, and connecting rods are fixedly connected to both of the two fixing rings. The stabilizer is fixedly connected between the two connecting rods, and the fixed box is slidably connected within the stabilizer.

[0010] To increase the stability of the fixed box during rotation, two sliders are fixedly connected to both the upper and lower ends of the fixed box, and two sliding grooves are opened on the stabilizer, with two sliders slidably connected in each groove.

[0011] In order to discharge the slurry entering the pump shaft tube, two discharge slots are opened at the bottom of the pump shaft tube, and a conical block is fixedly connected inside the pump shaft tube, with the conical block located between the two discharge slots.

[0012] To connect the tee pipe to external pipes, a double-disc elbow is connected to the top of the tee pipe.

[0013] To facilitate the disassembly and assembly of the pump casing, two connecting pipes are fixedly connected to the top of the pump casing, and the top ends of the two connecting pipes are connected by flanges.

[0014] To increase the depth of slurry transport, an inlet pipe is fixedly connected to the bottom inlet of the pump casing.

[0015] The beneficial effects of the embodiments disclosed herein are as follows:

[0016] In this disclosure, the motor, pump shaft tube, and conveying mechanism enable rotation without bearing support, reducing operating costs. During operation, water enters the pump casing in the slurry, creating water pressure to hold the impeller in place and prevent it from shaking, while also facilitating the conveying of the slurry. When the pump shaft tube rotates, the adjustment mechanism allows for easy adjustment of the position of the support shaft within the pump shaft tube, and the support rod further supports the pump shaft tube, thereby reducing instability during high-speed rotation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure;

[0019] Figure 2 This is a structural schematic diagram from another angle in one embodiment of the present disclosure;

[0020] Figure 3 This is a schematic cross-sectional view of the pump casing in one embodiment of the present disclosure;

[0021] Figure 4 This is a schematic diagram of the structure of the adjusting mechanism in one embodiment of the present disclosure;

[0022] Figure 5 This is a cross-sectional structural schematic diagram of the fixing box in one embodiment of this disclosure;

[0023] Figure 6 This is a schematic diagram of the structure of the pump shaft tube and the conical block in one embodiment of this disclosure;

[0024] Figure 7 For one embodiment of this disclosure Figure 6 A magnified structural diagram of point A in the middle.

[0025] In the diagram: 1. Mounting plate; 2. Sleeve; 3. Pump shaft tube; 4. Support rod; 5. Motor; 6. Delivery pipe; 7. T-joint; 8. Pump casing; 9. Impeller; 10. Fixing box; 11. Drive frame; 12. Drive screw; 13. Hexagonal block; 14. Fixing ring; 15. Connecting rod; 16. Stabilizer; 17. Slider; 18. Discharge trough; 19. Conical block; 20. Double-disc elbow; 21. Connecting pipe; 22. Flange; 23. Inlet pipe. Detailed Implementation

[0026] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0027] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0029] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] like Figures 1 to 7 As shown, this invention discloses a vertical, unsupported, long-shaft submersible slurry pump according to one embodiment. The pump includes a mounting plate 1, a sleeve 2, a pump shaft tube 3, a support rod 4, a motor 5, and a conveying mechanism. A double-disc elbow 20 is connected to the top of a tee pipe 7, allowing the tee pipe 7 to connect to an external pipeline. Two discharge slots 18 are formed at the bottom of the pump shaft tube 3. A conical block 19 is fixedly connected inside the pump shaft tube 3, positioned between the two discharge slots 18. The sleeve 2 is fixedly connected to the top of the mounting plate 1, and the pump shaft tube 3 is rotatably connected inside the sleeve 2. A rotation hole is formed on the mounting plate 1, and the pump shaft tube 3 is rotatably connected inside the rotation hole. The support rod 4 is set inside the pump shaft tube 3 via an adjustment mechanism. The position of the support rod 4 is adjusted. The motor 5 is installed at the top of the sleeve 2, and the output end of the motor 5 is fixedly connected to the top of the pump shaft tube 3. The conveying mechanism is set on the mounting plate 1 for conveying slurry. With the motor 5, pump shaft tube 3 and conveying mechanism, it can rotate without bearing support, which reduces the cost of use. During operation, water enters the pump casing 8 in the slurry, forming water pressure to press the blade 9 to prevent it from shaking and to facilitate the conveying of slurry. When the pump shaft tube 3 rotates, the position of the support shaft in the pump shaft tube 3 can be adjusted by the setting of the adjustment mechanism, and the support rod 4 supports the pump shaft tube 3, thereby reducing the stability of the pump shaft tube 3 when rotating at high speed.

[0033] The conveying mechanism includes: a conveying pipe 6, a three-way pipe 7, a pump casing 8, and a blade 9. Two connecting pipes 21 are fixedly connected to the top of the pump casing 8, and the tops of the two connecting pipes 21 are connected by flanges 22. There are two conveying pipes 6, and both conveying pipes 6 are fixedly connected to the mounting plate 1. The bottom end of the three-way pipe 7 is connected to the top of the two conveying pipes 6. The pump casing 8 is connected to the top of the two conveying pipes 6. The blade 9 is rotatably connected inside the pump casing 8. The bottom end of the pump shaft pipe 3 passes through the pump casing 8 and is fixedly connected to the blade 9. An inlet is opened at the bottom end of the pump casing 8, and an inlet pipe 23 is fixedly connected to the inlet at the bottom end of the pump casing 8.

[0034] The motor 5 drives the pump shaft tube 3 to rotate, which in turn drives the impeller 9 to rotate. When the impeller 9 rotates, it pushes the slurry that has entered the pump casing 8 into the two conveying pipes 6. The conveying pipes 6 convey the slurry into the three-way pipe 7 and output the slurry through the double-disc bend pipe 20. When the pump shaft tube 3 drives the impeller 9 to rotate in the pump casing 8, the slurry in the pump casing 8 generates pressure on the impeller, forming water pressure to hold the impeller 9 in place and prevent it from shaking.

[0035] The adjustment mechanism includes: a fixed box 10, a drive frame 11, a drive assembly, and a fixing assembly. A through groove is provided on the pump shaft tube 3, and the fixed box 10 is disposed within the through groove. A sliding groove is provided on the support rod 4, and the fixed box 10 is slidably connected within the sliding groove. The drive frame 11 is fixedly connected within the sliding groove. An adjustment groove is provided on the fixed box 10, and the drive frame 11 is slidably connected within the adjustment groove. The drive assembly is disposed within the fixed box 10 and is used to drive the drive frame 11 and support rod 4 to move and adjust on the fixed box 10. The fixing assembly is disposed on the two conveying pipes 6 and is used to support and limit the support rod 4 and the fixed box 10. The drive assembly includes: a drive screw 12 and a hexagonal block 13. Rod 12 is rotatably connected to the fixed box 10. The drive frame 11 has a screw hole, and the drive screw 12 is threaded into the screw hole. The hexagonal block 13 is fixedly connected to one end of the drive screw 12. The fixing assembly includes: a fixing ring 14, a connecting rod 15, and a stabilizing frame 16. Fixing rings 14 are fixedly connected to both conveying pipes 6, and connecting rods 15 are fixedly connected to both fixing rings 14. The stabilizing frame 16 is fixedly connected between the two connecting rods 15. The fixed box 10 is slidably connected to the stabilizing frame 16. Two sliders 17 are fixedly connected to both the upper and lower ends of the fixed box 10. Two sliding grooves are opened on the stabilizing frame 16, and two sliders 17 are slidably connected in each sliding groove.

[0036] The operator rotates the hexagonal block 13, which in turn drives the drive screw 12 to rotate within the fixed box 10. The drive screw 12, in turn, moves the drive frame 11 and the support rod 4 on the fixed box 10, thereby adjusting the position of the support rod 4 within the pump shaft tube 3. This further prevents the pump shaft tube 3 from shaking during rotation. When the pump shaft tube 3 rotates, the slider 17, which is fixedly connected to the fixed box 10, slides within the groove on the stabilizer 16, thereby increasing the stability of the fixed box 10 during rotation.

[0037] Working principle: When slurry needs to be transported, the pump casing 8 of the equipment is placed inside the slurry, and the motor 5 drives the pump shaft tube 3 to rotate. The rotation of the pump shaft tube 3 drives the impeller 9 to rotate, pushing the slurry entering the pump casing 8 into two conveying pipes 6. The conveying pipes 6 transport the slurry to the three-way pipe 7, and then output the slurry through the double-disc bend pipe 20. As the pump shaft tube 3 drives the impeller 9 to rotate inside the pump casing 8, the slurry inside the pump casing 8 exerts pressure on the impeller, creating water pressure to hold the impeller 9 in place and prevent it from shaking. To prevent the pump shaft tube 3 from rotating... The stability during operation is achieved by the operator rotating the hexagonal block 13. When the hexagonal block 13 rotates, it drives the drive screw 12 to rotate within the fixed box 10. When the drive screw 12 rotates, it drives the drive frame 11 and the support rod 4 to move on the fixed box 10, thereby adjusting the position of the support rod 4 within the pump shaft tube 3. This further prevents the pump shaft tube 3 from shaking during rotation. When the pump shaft tube 3 rotates, the slider 17 fixedly connected to the fixed box 10 slides within the groove opened on the stabilizer 16, thereby increasing the stability of the fixed box 10 during rotation.

[0038] It should also be noted that after the equipment is used and the slurry is removed, the residual slurry in the pump shaft tube 3 is discharged through the conical block 19 inside the pump shaft tube 3 and the discharge groove 18 opened on the pump shaft tube 3. Since the top of the conical block 19 is conical, it can effectively reduce the residual slurry in the pump shaft tube 3. In addition, a through hole is opened on the pump casing 8, through which the pump shaft tube 3 extends into the pump casing 8, and the diameter of the through hole is larger than the diameter of the pump shaft tube 3, so that the circumferential surface of the pump shaft tube 3 does not contact the inner wall of the through hole. Therefore, when the blade 9 rotates, the slurry that is driven to rotate in the pump casing 8 can effectively exert pressure on the slurry, thereby effectively preventing shaking. Furthermore, the support rod 4 supports the pump shaft tube 3, which can further prevent the pump shaft tube 3 and the slurry from shaking, thereby improving the stability of the blade 9 and the pump shaft tube 3 when rotating. This allows the pump shaft tube 3 and the blade 9 to rotate stably without the need for bearing support.

[0039] It should also be noted that when the equipment is in use, the pump casing 8 is immersed in the slurry. At this time, the stabilizing ring and the fixing box 10 are both located above the surface of the slurry and will not be immersed in the slurry. Therefore, when adjusting the support rod 4, it will not be affected by the slurry.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A vertical, unsupported, long-shaft submersible slurry pump, comprising a mounting plate (1), characterized in that, Also includes: Sleeve (2), which is fixedly connected to the top of the mounting plate (1); Pump shaft tube (3), the pump shaft tube (3) is rotatably connected inside the sleeve (2), the mounting plate (1) is provided with a rotating hole, and the pump shaft tube (3) is rotatably connected inside the rotating hole; A support rod (4) is provided inside the pump shaft tube (3) by means of an adjustment mechanism, the adjustment mechanism being used to adjust the position of the support rod (4); Motor (5), the motor (5) is installed at the top of the sleeve (2), and the output end of the motor (5) is fixedly connected to the top of the pump shaft tube (3); A conveying mechanism is mounted on the mounting plate (1) and is used to convey slurry.

2. A vertical, unsupported, long-shaft submersible slurry pump according to claim 1, characterized in that, The conveying mechanism includes: Two conveying pipes (6) are provided, and both conveying pipes (6) are fixedly connected to the mounting plate (1); A three-way pipe (7) is connected at its bottom end to the top ends of the two conveying pipes (6); Pump housing (8), the pump housing (8) being connected to the top ends of the two delivery pipes (6); The impeller (9) is rotatably connected inside the pump housing (8). The bottom end of the pump shaft tube (3) passes through the pump housing (8) and is fixedly connected to the impeller (9). The bottom end of the pump housing (8) is provided with a liquid inlet.

3. A vertical, unsupported, long-shaft submersible slurry pump according to claim 2, characterized in that, The adjustment mechanism includes: The fixed box (10) has a through groove on the pump shaft tube (3), and the fixed box (10) is set in the through groove. The support rod (4) has a sliding groove, and the fixed box (10) is slidably connected in the sliding groove. A drive frame (11) is fixedly connected in a slide groove. An adjustment groove is provided on the fixed box (10), and the drive frame (11) is slidably connected in the adjustment groove. A drive assembly is disposed inside the fixed box (10) and is used to drive the drive frame (11) and the support rod (4) to move and adjust on the fixed box (10); A fixing component is provided on the two delivery pipes (6) for supporting and limiting the support rod (4) and the fixing box (10).

4. A vertical, unsupported, long-shaft submersible slurry pump according to claim 3, characterized in that, The driving component includes: A drive screw (12) is rotatably connected inside the fixed box (10). A screw hole is provided on the drive frame (11), and the drive screw (12) is threaded into the screw hole. A hexagonal block (13) is fixedly connected to one end of the drive screw (12).

5. A vertical, unsupported, long-shaft submersible slurry pump according to claim 4, characterized in that, The fixing component includes: Fixed ring (14), fixedly connected to both of the two conveying pipes (6); The connecting rod (15) is fixedly connected to both of the two fixing rings (14); A stabilizer (16) is fixedly connected between the two connecting rods (15), and a fixing box (10) is slidably connected inside the stabilizer (16).

6. A vertical, unsupported, long-shaft submersible slurry pump according to claim 5, characterized in that, The upper and lower ends of the fixed box (10) are fixedly connected to two sliders (17), and the stabilizer (16) has two grooves, in which two sliders (17) are slidably connected.

7. A vertical, unsupported, long-shaft submersible slurry pump according to claim 1, characterized in that, The bottom of the pump shaft tube (3) has two discharge slots (18), and a conical block (19) is fixedly connected inside the pump shaft tube (3). The conical block (19) is located between the two discharge slots (18).

8. A vertical, unsupported, long-shaft submersible slurry pump according to claim 2, characterized in that, The top end of the tee pipe (7) is connected to a double-disc bend pipe (20).

9. A vertical, unsupported, long-shaft submersible slurry pump according to claim 2, characterized in that, The top of the pump casing (8) is fixedly connected to two connecting pipes (21), and the top ends of the two connecting pipes (21) are connected by flanges (22).

10. A vertical, unsupported, long-shaft submersible slurry pump according to claim 2, characterized in that, An inlet pipe (23) is fixedly connected to the bottom inlet of the pump casing (8).

Images