Long-shaft submerged pump with high stability

Abstract

The invention relates to the technical field of long-shaft submerged pumps, and discloses a high-stability long-shaft submerged pump which comprises a driving motor, the lower end of the driving motor is fixedly connected with a mounting plate, the output end of the driving motor is fixedly connected with a driven mechanism, the lower end of the driven mechanism is provided with a stabilizing mechanism, and the lower portion of the stabilizing mechanism is connected with a flow guide mechanism. A liquid outlet pipe is arranged on one side of the flow guide mechanism, the liquid outlet pipe is detachably connected with the flow guide mechanism, and a filter plate is arranged between the liquid outlet pipe and the flow guide mechanism. The stability of the submerged pump is improved, and abrasion and vibration are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of long-axis submersible pumps, and in particular to a long-axis submersible pump with high stability. Background Art

[0002] A long-shaft submersible pump, also known as a vertical long-shaft pump, deep-well pump (especially for groundwater extraction), or submersible vertical pump, is a specially designed vertical centrifugal pump. Its most notable structural feature is a drive shaft that is significantly longer than a typical pump. This shaft transmits power vertically from a prime mover (usually an electric motor) located above the liquid surface to an impeller submerged below. It is primarily used to pump groundwater, industrial wastewater, and chemical liquids.

[0003] Long-shaft submersible pumps are characterized by drive shafts that are significantly longer than conventional pumps. However, a shaft system with an excessively large aspect ratio (length / diameter) behaves like a cantilever beam, susceptible to bending and deformation at high speeds. When the speed approaches the system's natural frequency (critical speed), resonance is induced, causing exponentially larger vibration amplitudes. Furthermore, radial runout of the long shaft continuously impacts the top shaft seal (mechanical seal / stuffing seal), causing uneven wear and leakage on the seal surface. If the seal fails, foreign matter can enter, further exacerbating vibration. Summary of the Invention

[0004] The object of the present invention is to provide a long-axis submersible pump with high stability to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above object, the present invention provides the following solution: The present invention provides a long-axis submersible pump with high stability, comprising: A driving motor, wherein the lower end of the driving motor is fixedly connected to a mounting plate, the output end of the driving motor is fixedly connected to a driven mechanism, a stabilizing mechanism is provided at the lower end of the driven mechanism, a flow guiding mechanism is connected below the stabilizing mechanism, a liquid outlet pipe is provided on one side of the flow guiding mechanism, the liquid outlet pipe and the flow guiding mechanism are detachably connected, and a filter plate is provided between the liquid outlet pipe and the flow guiding mechanism.

[0006] Furthermore, the driven mechanism includes a coupling, a motor base, a first drive shaft, a vertical barrel and an anti-shake component. The two ends of the motor base are fixedly connected to the drive motor and the mounting plate respectively. A coupling is provided in the motor base. The first drive shaft is connected to the output end of the drive motor through the coupling. The vertical barrel is located at the lower end of the mounting plate and the vertical barrel passes through the flow guide mechanism. The lower part of the first drive shaft is located in the vertical barrel and is connected to the stabilizing mechanism. The anti-shake component is fixedly connected to the outer wall of the vertical barrel.

[0007] Furthermore, the anti-shake component includes an anti-shake ring, a reinforcement, an anti-shake component and a damping assembly. Several anti-shake components are provided, and the two ends of several anti-shake components are respectively fixedly connected to the mounting plate and the guide mechanism. One end of the anti-shake ring is fixedly connected to several anti-shake components, and the other end of the anti-shake ring is fixedly connected to the outer wall of the liquid outlet pipe. A reinforcement is provided on the anti-shake ring, and the reinforcement and the anti-shake ring are fixedly connected by bolts. The vertical barrel is located at the axis of the anti-shake ring, and the vertical barrel is fixedly connected to the anti-shake ring through the damping assembly.

[0008] Furthermore, the damping assembly includes a damping arm, a torsion spring, a damping shell and a damping claw. The damping claw is fixedly connected to the outer wall of the vertical barrel. The damping shell is fixedly connected between the damping claw and the anti-shake ring. The damping arm is fixedly connected inside the damping shell. The torsion spring is sleeved on the damping arm.

[0009] Furthermore, the stabilizing mechanism includes a stabilizing plate, a driven planetary gear, a synchronous wheel, a gear train gear ring, a driving planetary gear, a coupling arm, a first sun gear and an anti-blocking component, the gear train gear ring is fixedly connected to the inner wall of the vertical barrel, the inner wall of the gear train gear ring is meshed with several driven planetary gears, the first driving shaft is located at the axis center of the gear train gear ring, several coupling arms are provided, and the coupling arm is fixedly connected to the first driving shaft, the other end of the coupling arm is fixedly connected to the driven planetary gear, the lower part of the driven planetary gear is fixedly connected to the synchronous wheel, the driving planetary gear is provided below the coupling arm, the driving planetary gear is fixedly connected to the first driving shaft, and the driving planetary gear is meshed with the synchronous wheel, a first sun gear is also provided on the first driving shaft, the first sun gear is located below the synchronous wheel, and the first sun gear is meshed with the anti-blocking component, and several stabilizing plates are provided, and several of the stabilizing plates are respectively located above the coupling arm, below the synchronous wheel and below the first sun gear.

[0010] Furthermore, the anti-blocking component includes a filter plate, a driven shaft, a synchronous pinion and an anti-blocking impeller. The synchronous pinion is fixedly connected to the driven shaft, and the synchronous pinion is engaged with the first sun gear. The lower end of the driven shaft is fixedly connected to the anti-blocking impeller, and the anti-blocking impeller is located on one side of the filter plate.

[0011] Furthermore, the stabilizing mechanism also includes a second sun gear and a second drive shaft, the second drive shaft is fixedly connected to the second sun gear, the second sun gear is meshed with the first sun gear, and the second drive shaft is fixedly connected to the guide mechanism.

[0012] Furthermore, the guide mechanism includes a centrifugal impeller and a hub, one side of the hub is fixedly connected to the second drive shaft, the other side of the hub is fixedly connected to the centrifugal impeller, and the centrifugal impeller is arranged to rotate outward along the axis of the hub.

[0013] The present invention discloses the following technical effects: by fixing the mounting plate to the lower end of the driving motor, not only the installation stability of the driving motor is improved, but also the rigidity of the overall structure is enhanced, thereby reducing vibration and noise during operation and improving the service life and reliability of the equipment. The fixed connection method of the mounting plate also simplifies the installation and disassembly process, facilitates maintenance and overhaul, and reduces maintenance costs and difficulty. Secondly, the output end of the driving motor is fixedly connected to a driven mechanism, which reduces energy loss during the transmission process and improves transmission efficiency. The driven mechanism optimizes the power transmission path, makes the operation of the pump more stable, reduces mechanical wear, and improves the operating efficiency and reliability of the equipment. At the same time, a stabilizing mechanism is provided at the lower end of the driven mechanism, which further enhances the stability of the structure, prevents loosening or deviation caused by long-term operation, and ensures the long-term stable operation of the pump. A flow guide mechanism is connected below the stabilizing mechanism, which optimizes the flow path of the liquid, reduces flow resistance and turbulence, and improves the liquid delivery efficiency. A liquid outlet pipe is installed on one side of the flow guide mechanism. The pipe and the flow guide mechanism are detachably connected, facilitating replacement and cleaning of the pipe, reducing downtime due to blockage or contamination, and improving equipment availability and ease of maintenance. A filter plate is also installed between the pipe and the flow guide mechanism to intercept impurities and particles in the liquid, preventing them from entering the pipe, protecting the pipe's internal structure and extending the equipment's service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and descriptions of this application are intended to explain this application and do not constitute an improper limitation on this application. In the accompanying drawings: Figure 1 An overall schematic diagram of a long-axis submersible pump with high stability provided by an embodiment of the present invention; Figure 2 A side view of an anti-shake component in a long-axis submersible pump with high stability provided by an embodiment of the present invention; Figure 3 A cross-sectional view of the interior of a damping shell in a long-axis submersible pump with high stability provided by an embodiment of the present invention; Figure 4 A side view of a stabilizing mechanism in a long-axis submersible pump with high stability provided by an embodiment of the present invention; Figure 5 A side view of the stabilizing mechanism of the long-axis submersible pump with high stability provided by an embodiment of the present invention, without the stabilizing plate.

[0015] Figure: 1. Drive motor; 2. Mounting plate; 3. Driven mechanism; 301. Coupling; 302. Motor base; 303. First drive shaft; 304. Vertical barrel; 305. Anti-shake component; 3051. Anti-shake ring; 3052. Reinforcement member; 3053. Anti-shake member; 3054. Damping arm; 3055. Torsion spring; 3056. Damping shell; 3057. Damping claw; 4. Liquid outlet pipe; 5. Diversion device Mechanism; 501, centrifugal impeller; 502, hub; 7, stabilizing mechanism; 701, stabilizing plate; 702, driven planetary gear; 703, synchronous wheel; 704, gear ring; 705, driving planetary gear; 706, coupling arm; 707, first sun gear; 708, driven shaft; 709, synchronous pinion; 710, anti-blocking impeller; 711, second sun gear; 712, second drive shaft. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, unless there is a conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0019] In some embodiments of the present application, see Figure 1 As shown, a long-axis submersible pump with high stability comprises: A driving motor 1 is provided, and the lower end of the driving motor 1 is fixedly connected to a mounting plate 2. The output end of the driving motor 1 is fixedly connected to a driven mechanism 3. A stabilizing mechanism 7 is provided at the lower end of the driven mechanism 3. A guide mechanism 5 is connected below the stabilizing mechanism 7. A liquid outlet pipe 4 is provided on one side of the guide mechanism 5. The liquid outlet pipe 4 and the guide mechanism 5 are detachably connected. A filter plate is provided between the liquid outlet pipe 4 and the guide mechanism 5.

[0020] Specifically, the lower end of the driving motor 1 is fixedly connected to the mounting plate 2, and the mounting plate 2 is located above the liquid level. The driven mechanism 3 is connected to the stabilizing mechanism 7 below the liquid level to realize the change of the head of the long-axis submersible pump. In addition, the stabilizing mechanism 7 can also prevent noise or wear caused by the excessive length of the driving shaft. The stabilizing mechanism 7 is connected to the diversion mechanism 5 through the stabilizing mechanism 7. When the driving motor 1 drives the driven mechanism 3 to rotate, the driven mechanism 3 drives the stabilizing mechanism 7 to rotate, and then drives the diversion mechanism 5 to rotate, so that the liquid is driven into the liquid outlet pipe 4 by centrifugal force. A filter plate is provided between the diversion mechanism 5 and the liquid outlet pipe 4 to filter impurities in the liquid, so that the liquid output by the long-axis submersible pump is purer.

[0021] As will be appreciated, the lower end of the drive motor 1 is fixedly connected to a mounting plate 2 positioned above the liquid level. This not only improves the installation stability of the drive motor 1 but also enhances the rigidity of the overall structure, thereby reducing vibration and noise during operation and increasing the service life and reliability of the device. The fixed connection of the mounting plate 2 also simplifies the installation and disassembly process, facilitating maintenance and overhaul, and reducing maintenance costs and difficulty. Secondly, the output end of the drive motor 1 is fixedly connected to a driven mechanism 3, which is positioned below the liquid level and connected to the diversion mechanism 5 via a stabilizing mechanism 7. This optimizes the power transmission path, ensuring smoother pump operation, reducing mechanical wear, and improving the device's operating efficiency and reliability. The design of the stabilizing mechanism 7 not only allows for changes in the head of long-axis submersible pumps but also prevents noise and wear caused by an excessively long drive shaft, further enhancing the device's stability and durability. Through the connection between the stabilizing mechanism 7 and the diversion mechanism 5, when the drive motor 1 drives the driven mechanism 3 to rotate, the driven mechanism 3 drives the stabilizing mechanism 7, which in turn drives the diversion mechanism 5, achieving the process of centrifugal force driving liquid into the liquid outlet pipe 4. The flow path of the liquid is optimized, flow resistance and turbulence are reduced, and the liquid delivery efficiency is improved. A liquid outlet pipe 4 is provided on one side of the guide mechanism 5. The liquid outlet pipe 4 and the guide mechanism 5 are detachably connected, which facilitates the replacement and cleaning of the liquid outlet pipe 4, reduces downtime due to blockage or contamination, and improves the availability and maintenance convenience of the equipment. At the same time, a filter plate is provided between the liquid outlet pipe 4 and the guide mechanism 5. The filter plate can intercept impurities and particles in the liquid and prevent them from entering the interior of the pump body, thereby protecting the internal structure of the pump and extending the service life of the equipment. The filter plate also improves the purity of the liquid, reduces pipeline blockage and wear caused by impurities, and reduces maintenance frequency and cost. The detachable design of the filter plate also facilitates cleaning and replacement, further improving the maintenance convenience and operating efficiency of the equipment.

[0022] In some embodiments of the present application, the driven mechanism 3 includes a coupling 301, a motor base 302, a first drive shaft 303, a vertical barrel 304 and an anti-shake component 305. The two ends of the motor base 302 are fixedly connected to the drive motor 1 and the mounting plate 2 respectively. The coupling 301 is provided in the motor base 302. The first drive shaft 303 is connected to the output end of the drive motor 1 through the coupling 301. The vertical barrel 304 is located at the lower end of the mounting plate 2, and the vertical barrel 304 passes through the guide mechanism 5. The lower part of the first drive shaft 303 is located in the vertical barrel 304 and is connected to the stabilizing mechanism 7. The anti-shake component 305 is fixedly connected to the outer wall of the vertical barrel 304.

[0023] In some embodiments of the present application, see Figure 2 As shown, the anti-shake component 305 includes an anti-shake ring 3051, a reinforcement 3052, an anti-shake component 3053 and a damping assembly. Several anti-shake components 3053 are provided, and the two ends of the several anti-shake components 3053 are respectively fixedly connected to the mounting plate 2 and the flow guide mechanism 5. One end of the anti-shake ring 3051 is fixedly connected to the several anti-shake components 3053, and the other end of the anti-shake ring 3051 is fixedly connected to the outer wall of the liquid outlet pipe 4. A reinforcement 3052 is provided on the anti-shake ring 3051, and the reinforcement 3052 and the anti-shake ring 3051 are fixedly connected by bolts. The vertical barrel 304 is located at the axis of the anti-shake ring 3051, and the vertical barrel 304 is fixedly connected to the anti-shake ring 3051 through the damping assembly.

[0024] Specifically, the vertical barrel 304 is fixedly connected to the mounting plate 2 and is hollow inside. The first drive shaft 303 is connected to the output end of the drive motor 1 and then passes through the vertical barrel 304 to the stabilizing mechanism 7. The outer wall of the vertical barrel 304 is fixedly connected to the anti-shake ring 3051 through a damping assembly. The other end of the anti-shake ring 3051 is fixed to the liquid outlet pipe 4. A reinforcement 3052 is provided on the anti-shake ring 3051 to improve its energy absorption effect, thereby further offsetting the shaking, wear or noise caused by the long axis.

[0025] It is understandable that the driven mechanism 3 includes a coupling 301, a motor base 302, a first drive shaft 303, a vertical barrel 304 and an anti-shake component 305, which optimizes the power transmission path and improves the transmission efficiency and operational stability of the device. The two ends of the motor base 302 are fixedly connected to the drive motor 1 and the mounting plate 2 respectively, which not only enhances the rigidity of the overall structure, but also improves the installation stability of the drive motor 1, reduces vibration and noise during operation, and extends the service life of the device. The coupling 301 is located in the motor base 302, and the first drive shaft 303 is connected to the output end of the drive motor 1 through the coupling 301, which reduces energy loss during transmission and improves transmission efficiency. The lower part of the first drive shaft 303 is located in the vertical barrel 304 and is connected to the stabilizing mechanism 7. The vertical barrel 304 runs through the diversion mechanism 5, which optimizes the power transmission path, makes the pump run more smoothly, reduces mechanical wear, and improves the operational efficiency and reliability of the equipment. The vertical barrel 304 is fixedly connected to the mounting plate 2, and its interior is hollow, which not only enhances the overall stability of the device, but also reduces the vibration and noise caused by the excessive length of the drive shaft. The anti-shake component 305 includes an anti-shake ring 3051, a reinforcement 3052, an anti-shake component 3053 and a damping assembly, which further enhances the stability and vibration resistance of the device. There are several anti-shake components 3053, and the two ends are respectively fixedly connected to the mounting plate 2 and the guide mechanism 5, which enhances the overall rigidity of the device, reduces shaking and vibration during operation, and improves the operational stability and service life of the device. One end of the anti-shake ring 3051 is fixedly connected to several anti-shake components 3053, and the other end is fixedly connected to the outer wall of the liquid outlet pipe 4, which not only optimizes the fixing method of the liquid outlet pipe 4, but also reduces the vibration and noise caused by the flow of liquid. The anti-shake ring 3051 is equipped with a reinforcement 3052, which is fixed to the anti-shake ring 3051 via bolts. This enhances the anti-shake ring 3051's energy absorption effect, further offsets the shaking, wear, and noise caused by the long axis, and improves the device's operational stability and environmental friendliness. The vertical barrel 304 is located at the axis of the anti-shake ring 3051 and is fixed to the anti-shake ring 3051 via a damping assembly. This optimizes the fixing method of the vertical barrel 304, reduces vibration and noise during operation, and improves the overall performance and reliability of the device.

[0026] In some embodiments of the present application, see Figure 3 As shown, the damping assembly includes a damping arm 3054, a torsion spring 3055, a damping shell 3056 and a damping claw 3057. The damping claw 3057 is fixedly connected to the outer wall of the vertical barrel 304. The damping shell 3056 is fixedly connected between the damping claw 3057 and the anti-shake ring 3051. The damping arm 3054 is fixedly connected inside the damping shell 3056. The torsion spring 3055 is sleeved on the damping arm 3054.

[0027] It is understood that the damping claw 3057 is fixedly connected to the outer arm of the vertical barrel 304, which strengthens the connection strength between the vertical barrel 304 and the damping assembly, reduces loosening or offset caused by vibration during operation, and improves the overall stability and service life of the equipment. The damping claw 3057 is fixedly connected to the anti-shake ring 3051 with a damping shell 3056, which optimizes the installation method of the damping assembly, simplifies the installation and disassembly process, facilitates maintenance and overhaul, and reduces maintenance costs and difficulty. The damping shell 3056 is fixedly connected to the damping arm 3054, and the damping arm 3054 is provided with a torsion spring 3055, which improves the energy absorption effect and vibration reduction capacity of the damping assembly. The synergistic effect of the damping arm 3054 and the torsion spring 3055 can absorb and offset the vibration and impact generated during operation, reduce the vibration amplitude and noise of the equipment, and improve the smooth operation and environmental friendliness of the equipment. The torsion spring 3055 also enhances the damping assembly's elastic recovery capability, enabling it to quickly return to its original state after vibration or impact, further improving the device's stability and reliability. Furthermore, the damping assembly's design optimizes the device's power transmission path, reducing energy loss due to vibration and improving both transmission and operational efficiency. The combination of the damping arm 3054 and torsion spring 3055 not only reduces mechanical wear, but also extends the device's service life, reducing maintenance frequency and costs. The fixed connection of the damping shell 3056 also enhances the device's overall rigidity, reducing shake and deflection during operation, and improving its operational accuracy and reliability. The fixed connection between the damping assembly and the anti-shake ring 3051 further enhances the device's vibration resistance and stability. The anti-shake ring 3051 not only optimizes the securing of the liquid outlet pipe 4 but also reduces vibration and noise generated by liquid flow, enhancing operational comfort and environmental friendliness. The synergistic effect of the damping assembly and anti-shake ring 3051 ensures smoother and more efficient operation, minimizing energy loss and mechanical failures.

[0028] In some embodiments of the present application, see Figure 4-Figure 5 As shown, Figure 5 The structural diagram is to remove the stabilizing plate 701, because the stabilizing plate 701 will block the connection structure of a part of the gear. Figure 4 For a complete structure, Figure 5In order to remove the stabilizing plate 701 and only show the connection structure diagram of the gears and shafts, the stabilizing mechanism 7 includes a stabilizing plate 701, a driven planetary gear 702, a synchronous wheel 703, a gear ring 704, a driving planetary gear 705, a coupling arm 706, a first sun gear 707 and an anti-blocking component. The gear ring 704 is fixedly connected to the inner wall of the vertical barrel 304. A plurality of driven planetary gears 702 are meshed on the inner wall of the gear ring 704. The first driving shaft 303 is located at the axis of the gear ring 704. A plurality of coupling arms 706 are provided, and the coupling arm 706 is fixedly connected to the first driving shaft 303. The other end of the coupling arm 706 is connected to the driven planetary gear 702. Fixedly connected, a synchronous wheel 703 is fixedly connected to the bottom of the driven planetary gear 702, and a driving planetary gear 705 is arranged below the coupling arm 706. The driving planetary gear 705 is fixedly connected to the first driving shaft 303, and the driving planetary gear 705 is engaged with the synchronous wheel 703. A first sun gear 707 is also provided on the first driving shaft 303, and the first sun gear 707 is located below the synchronous wheel 703. The first sun gear 707 is engaged with the anti-blocking component, and several stabilizing plates 701 are provided. Several stabilizing plates 701 are respectively located above the coupling arm 706, below the synchronous wheel 703 and below the first sun gear 707.

[0029] In some embodiments of the present application, the anti-blocking component includes a filter plate, a driven shaft 708, a synchronous pinion 709 and an anti-blocking impeller 710. The driven shaft 708 is fixedly connected to the synchronous pinion 709, and the synchronous pinion 709 is engaged with the first sun gear 707. The lower end of the driven shaft 708 is fixedly connected to the anti-blocking impeller 710, and the anti-blocking impeller 710 is located on one side of the filter plate.

[0030] Specifically, when the driving motor 1 drives the first driving shaft 303 to rotate, the coupling arm 706 rotates synchronously, and the coupling arm 706 is fixedly connected to the driven planetary gear 702, so that the driven planetary gear 702 rotates on the inner wall of the gear ring 704. When the first driving shaft 303 rotates, it drives the driving planetary gear 705 to rotate, and then drives the planetary gear 705 to drive the synchronous wheel 703 to rotate. The synchronous wheel 703 is fixedly connected to the driven planetary gear 702, and the synchronous wheel 703 is located below the driven planetary gear 702. Therefore, the synchronous wheel 703 and the driven planetary gear 702 rotate along the inner wall of the gear ring 704. The first sun gear 707 is sleeved under the first driving shaft 303, and the first sun gear 707 engages with the synchronous pinion 709. That is, when the first driving shaft 303 rotates, it drives the synchronous pinion 709 to rotate, and then drives the driven shaft 708 to rotate, and then drives the anti-blocking impeller 710 to continuously knock on the filter plate to prevent the filter plate from being blocked.

[0031] It can be understood that the high-speed rotation input by the drive motor 1 is transmitted through the first drive shaft 303, and the driving planetary gear 705 is directly fixed on the first drive shaft 303 and meshes with the synchronous wheel 703 fixed below the driven planetary gear 702. The decelerated speed and increased torque are finally transmitted to the driven planetary gear 702 fixedly connected to the synchronous wheel 703, and then act on the guide mechanism 5 of the drive pump. Reducing the speed of the pump impeller is a direct and effective way to reduce the pump head. Therefore, there is no need to change the motor speed or additional complex speed change device, only through the built-in planetary gear system. By reducing speed, the pump can flexibly adapt to working conditions with different head requirements, expanding the scope of use of the pump. The gear ring 704 is fixed to the inner wall of the pump casing, providing an absolutely stable reference. The driven planetary gear 702 is internally meshed with the gear ring 704 and is rigidly connected to the central first drive shaft 303 by the coupling arm 706. When the first drive shaft 303 rotates, the driven planetary gear 702 is forced to be driven by the coupling arm 706. Since the gear ring 704 is fixed, the driven planetary gear 702 must revolve around the center of the first drive shaft 303 (i.e., the center line of the pump shaft) while rotating.

[0032] Several driven planetary gears 702 and the synchronous wheels 703 connected thereto are evenly distributed around the first drive shaft 303 and are rigidly connected to the central shaft via coupling arms 706. During their revolution, their bearings or support points essentially become dynamic radial support points for the first drive shaft 303 at multiple circumferential positions. The traditional single central shaft support is transformed into a "distributed support ring" consisting of multiple rigid components that revolve around the central shaft. This support ring tightly "hooks" the central long shaft via the coupling arms 706 and uses its own rolling meshing on the fixed gear ring 704 as a constraint, thereby increasing the rotational speed of the drive shaft 303. The radial stiffness of the long shaft during rotation is enhanced, the radial load caused by water flow impact, impeller unbalance force, etc. is resisted, and the lateral bending and shaking of the long shaft are suppressed. The shaking of the long shaft is the main source of noise (such as friction sound, vibration sound) and premature wear of the submersible pump. The strong suppression of shaking by the above-mentioned distributed multi-point support structure directly reduces the abnormal friction and collision caused by offset between the shaft and the bearings and seals. At the same time, the mandatory planetary gear meshing transmission (driven planetary gear 702 and fixed gear ring gear 704, driving planetary gear 705 and synchronous gear 703) and the rigid connection of the coupling arm 706 ensure The power transmission path is certain, and the gap and impact in the transmission process are reduced. The synchronous structure of the internal gears (the driving planetary gear 705 drives the synchronous wheel 703, and the synchronous wheel 703 is fixed to the driven planetary gear 702 to ensure the same rotation speed) further improves the coordination and stability of the internal operation of the gear system, making the operation of the entire pump shaft system smoother and smoother, reducing mechanical operation noise and harmful vibration, improving the working environment, and reducing fatigue damage to the equipment itself and surrounding structures caused by noise. The suppression of long shaft shaking directly reduces the friction between the shaft and the radial bearing and the shaft seal (mechanical seal or stuffing seal). Eccentric wear and uniform force make the wear of bearings and seals more uniform and slow, reducing abnormal friction and collision and also reducing the wear rate of related contact surfaces. Smooth operation reduces the alternating stress and impact load on the components and alleviates structural fatigue. Therefore, it plays a decisive role in extending the service life of the long shaft itself, bearings, shaft seals and other pump internal components that are susceptible to vibration, reducing maintenance frequency and cost. The multiple stabilizing plates 701 arranged at key positions (above the coupling arm 706, below the synchronous wheel 703, and below the first sun gear 707) constitute an axially layered rigid support frame.

[0033] They provide stable axial and radial positioning support points for the rotating shaft system (first drive shaft 303, coupling arm 706) and gear assembly (synchronizing gear 703, first sun gear 707). These stabilizing plates 701 work in conjunction with the distributed support ring formed by the planetary gear system to jointly constrain the freedom of the long axis in all directions (especially radial and axial), ensuring that even when subjected to large loads, the entire transmission chain can maintain precise alignment and structural rigidity, further consolidating the effects of vibration reduction, noise reduction, and wear reduction. The anti-blocking assembly (synchronizing pinion 709->driven shaft 708->anti-blocking impeller 710) is driven by the first sun gear 707. The surplus power after the main reduction is used to continuously drive the anti-blocking impeller 710 to strike or disturb the filter plate, preventing the filter plate at the pump suction end from clogging due to impurity accumulation. This avoids problems such as flow rate drop, reduced pump efficiency, and even cavitation damage to the impeller caused by clogging, ensuring that the pump can maintain the expected flow rate and continuous and stable operation under reduced head conditions.

[0034] In some embodiments of the present application, the stabilizing mechanism 7 also includes a second sun gear 711 and a second drive shaft 712, the second sun gear 711 is fixedly connected to the second drive shaft 712, the second sun gear 711 is meshed with the first sun gear 707, and the second drive shaft 712 is fixedly connected to the guide mechanism 5.

[0035] In some embodiments of the present application, the flow guide mechanism 5 includes a centrifugal impeller 501 and a hub 502, one side of the hub 502 is fixedly connected to the second drive shaft 712, and the other side of the hub 502 is fixedly connected to the centrifugal impeller 501, and the centrifugal impeller 501 is arranged to rotate outward along the axis point of the hub 502.

[0036] Specifically, the second drive shaft 712 and the driven shaft 708 are arranged opposite to each other and are both engaged with the first sun gear 707. The second drive shaft 712 is engaged with the first sun gear 707 through the second sun gear 711. When the first drive shaft 303 rotates, it drives the second sun gear 711 to rotate, and then drives the second drive shaft 712 to rotate, and at the same time drives the centrifugal impeller 501 and the hub 502 to rotate, thereby achieving the effect of transporting the liquid to the liquid outlet pipe 4 through centrifugal force.

[0037] It can be understood that by using the first sun gear 707 as the central power distribution node, and simultaneously engaging the synchronous pinion 709 of the anti-blocking component below (driving the anti-blocking impeller 710) and the second sun gear 711 above (driving the guide mechanism 5), the rotational energy of the first drive shaft 303 is efficiently decomposed into two independent outputs, and the anti-blocking function (anti-blocking impeller 710) and the core pumping function (centrifugal impeller 501) do not need to be configured with independent motors or transmission chains, which significantly simplifies the power structure. A single input drives multiple actions, reduces the loss in the energy transmission link, and improves the overall utilization efficiency of the power system. The synchronization of the second sun gear 711 and the anti-blocking component The pinion gears 709 are symmetrically meshed on both sides of the first sun gear 707 (the second drive shaft 712 and the driven shaft 708 are arranged opposite each other). When the first sun gear 707 rotates, the radial unbalanced load generated by the gear meshing is offset. The balance of radial forces directly reduces the bending stress and radial runout of the long shaft during rotation. In conjunction with the existing distributed support of the planetary gear system, the dynamic rigidity and rotational stability of the long shaft are further enhanced, and the vibration and runout of the long shaft are further suppressed. The second sun gear 711 is fixed to the second drive shaft 712 and directly meshes with the first sun gear 707. This meshing relationship ensures that the power is transmitted from the first drive shaft 303 to the driven shaft 708. The first sun gear 707 → the second sun gear 711 → the second drive shaft 712 is efficiently and low-loss transmitted. The second drive shaft 712 directly drives the centrifugal impeller 501 to rotate through the hub 502. The blades of the centrifugal impeller 501 are arranged radially outward along the axis of the hub 502. Its high-speed rotation generates a strong centrifugal force. The centrifugal force generated by the centrifugal impeller 501 throws the liquid from the central area of ​​the impeller to the edge at high speed, forming a directional flow in the flow channel of the pump casing, realizing efficient pressurized delivery of the liquid from the suction port to the liquid outlet pipe 4. This design optimizes the flow field distribution in the pump and improves the pumping efficiency. The guide mechanism 5 (the second sun gear 711, the second drive shaft 712) is connected to the pump body 501. 12. The hub 502 and the centrifugal impeller 501 are located above the original stabilizing mechanism 7 and the anti-blocking component, making full use of the axial space inside the pump body and realizing highly compact vertical integration. All key rotating components (the first drive shaft 303 and the first sun gear 707) serve multiple functions (driving the planetary gear system to revolve / decelerate the stabilizing shaft, driving the anti-blocking impeller 710, and driving the centrifugal impeller 501), reducing the need for independent shaft systems and support structures. The main power transmission is concentrated in the central area, reducing the complex sealing problems caused by multi-axis penetration. The overall structure is simpler, the potential failure points are reduced, and the inherent reliability and maintainability are improved.

[0038] In summary, the beneficial effects of the present invention are as follows: by fixing the mounting plate 2 to the lower end of the drive motor 1, not only the installation stability of the drive motor 1 is improved, but also the rigidity of the overall structure is enhanced, thereby reducing vibration and noise during operation and improving the service life and reliability of the equipment. The fixed connection method of the mounting plate 2 also simplifies the installation and disassembly process, facilitates maintenance and overhaul, and reduces maintenance costs and difficulty. Secondly, the output end of the drive motor 1 is fixedly connected to the driven mechanism 3, which reduces energy loss during the transmission process and improves transmission efficiency. The driven mechanism 3 optimizes the power transmission path, making the operation of the pump more stable, reducing mechanical wear, and improving the operating efficiency and reliability of the equipment. At the same time, the lower end of the driven mechanism 3 is provided with a stabilizing mechanism 7, which further enhances the stability of the structure, prevents loosening or deviation caused by long-term operation, and ensures the long-term stable operation of the pump. The bottom of the stabilizing mechanism 7 is connected to a flow guide mechanism 5, which optimizes the flow path of the liquid, reduces flow resistance and turbulence, and improves the liquid delivery efficiency. A liquid outlet pipe 4 is provided on one side of the flow guide mechanism 5. This removable connection facilitates replacement and cleaning of the pipe, reducing downtime due to blockage or contamination, and improving equipment availability and ease of maintenance. A filter plate is also provided between the pipe and the flow guide mechanism 5. This filter plate intercepts impurities and particles in the liquid, preventing them from entering the pipe, protecting its internal structure and extending the life of the equipment.

[0039] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying 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.

[0040] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A long-axis submersible pump with high stability, characterized in that: include: A driving motor (1) is provided, wherein the lower end of the driving motor (1) is fixedly connected to a mounting plate (2), the output end of the driving motor (1) is fixedly connected to a driven mechanism (3), a stabilizing mechanism (7) is provided at the lower end of the driven mechanism (3), a flow guiding mechanism (5) is connected below the stabilizing mechanism (7), a liquid outlet pipe (4) is provided on one side of the flow guiding mechanism (5), the liquid outlet pipe (4) and the flow guiding mechanism (5) are detachably connected, and a filter plate is provided between the liquid outlet pipe (4) and the flow guiding mechanism (5).

2. The long-axis submersible pump with high stability according to claim 1, characterized in that: The driven mechanism (3) comprises a coupling (301), a motor base (302), a first drive shaft (303), a vertical barrel (304) and an anti-shake component (305). The two ends of the motor base (302) are fixedly connected to the drive motor (1) and the mounting plate (2), respectively. The motor base (302) is provided with a coupling (301). The first drive shaft (303) is connected to the output end of the drive motor (1) through the coupling (301). The vertical barrel (304) is located at the lower end of the mounting plate (2) and passes through the guide mechanism (5). The lower part of the first drive shaft (303) is located in the vertical barrel (304) and is connected to the stabilizing mechanism (7). The anti-shake component (305) is fixedly connected to the outer wall of the vertical barrel (304).

3. The long-axis submersible pump with high stability according to claim 2, characterized in that: The anti-shake component (305) includes an anti-shake ring (3051), a reinforcement (3052), an anti-shake component (3053) and a damping assembly. The anti-shake component (3053) is provided with a plurality of anti-shake components, and the two ends of the plurality of anti-shake components (3053) are fixedly connected to the mounting plate (2) and the flow guide mechanism (5) respectively. One end of the anti-shake ring (3051) is fixedly connected to the plurality of anti-shake components (3053), and the other end of the anti-shake ring (3051) is fixedly connected to the outer wall of the liquid outlet pipe (4). The anti-shake ring (3051) is provided with a reinforcement (3052), and the reinforcement (3052) and the anti-shake ring (3051) are fixedly connected by bolts. The vertical barrel (304) is located at the axis of the anti-shake ring (3051), and the vertical barrel (304) is fixedly connected to the anti-shake ring (3051) through the damping assembly.

4. The long-axis submersible pump with high stability according to claim 3, characterized in that: The damping assembly comprises a damping arm (3054), a torsion spring (3055), a damping shell (3056), and a damping claw (3057); the damping claw (3057) is fixedly connected to the outer wall of the vertical barrel (304); the damping shell (3056) is fixedly connected between the damping claw (3057) and the anti-shake ring (3051); the damping arm (3054) is fixedly connected inside the damping shell (3056); and the torsion spring (3055) is sleeved on the damping arm (3054).

5. The long-axis submersible pump with high stability according to claim 4, characterized in that: The stabilizing mechanism (7) includes a stabilizing plate (701), a driven planetary gear (702), a synchronous wheel (703), a gear train ring gear (704), a driving planetary gear (705), a coupling arm (706), a first sun gear (707) and an anti-blocking component. The gear train ring gear (704) is fixedly connected to the inner wall of the vertical barrel (304). The inner wall of the gear train ring gear (704) is meshed with a plurality of driven planetary gears (702). The first driving shaft (303) is located at the axis of the gear train ring gear (704). The coupling arm (706) is provided with a plurality of gears, and the coupling arm (706) is fixedly connected to the first driving shaft (303). The other end of the coupling arm (706) is fixedly connected to the driven planetary gear (702). The driven planetary gear ( A synchronous wheel (703) is fixedly connected to the lower part of the coupling arm (702), a driving planetary gear (705) is provided below the coupling arm (706), the driving planetary gear (705) is fixedly connected to the first driving shaft (303), and the driving planetary gear (705) is meshed with the synchronous wheel (703), and a first sun gear (707) is further provided on the first driving shaft (303), the first sun gear (707) is located below the synchronous wheel (703), and the first sun gear (707) is meshed with the anti-blocking component, and a plurality of stabilizing plates (701) are provided, and the plurality of stabilizing plates (701) are respectively located above the coupling arm (706), below the synchronous wheel (703), and below the first sun gear (707).

6. The long-axis submersible pump with high stability according to claim 5, characterized in that: The anti-blocking component comprises a driven shaft (708), a synchronous pinion (709) and an anti-blocking impeller (710); the driven shaft (708) is fixedly connected to the synchronous pinion (709); the synchronous pinion (709) is meshed with the first sun gear (707); the lower end of the driven shaft (708) is fixedly connected to the anti-blocking impeller (710); and the anti-blocking impeller (710) is located on one side of the filter plate.

7. The long-axis submersible pump with high stability according to claim 6, characterized in that: The stabilizing mechanism (7) further comprises a second sun gear (711) and a second drive shaft (712), the second drive shaft (712) being fixedly connected to the second sun gear (711), the second sun gear (711) being meshed with the first sun gear (707), and the second drive shaft (712) being fixedly connected to the flow guide mechanism (5).

8. The long-axis submersible pump with high stability according to claim 7, characterized in that: The flow guide mechanism (5) comprises a centrifugal impeller (501) and a hub (502), one side of the hub (502) is fixedly connected to the second drive shaft (712), the other side of the hub (502) is fixedly connected to the centrifugal impeller (501), and the centrifugal impeller (501) is arranged to rotate outward along the axis of the hub (502).

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