A lifting device
By designing the power and lifting components of the lifting device, and utilizing the transmission rope and guide wheel system, the problem of collisions during the movement of the submersible pump in the well was solved, ensuring the safety, stability, and operational reliability of the submersible pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO GUANGXI IND
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-21
AI Technical Summary
Submersible pumps are prone to damage from collisions with the well wall during placement and retrieval, and pose safety hazards to operators.
Design a lifting device including a power component and a lifting component, which controls the movement of the slide plate through a transmission rope and guide wheel system to ensure the stable lifting and lowering of the submersible pump in the well and avoid contact with the well wall.
This enables the submersible pump to move safely and stably inside the well, avoiding damage from impacts, reducing safety risks for operators, and improving the reliability and safety of operation.
Smart Images
Figure CN224530497U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of submersible pump technology, and more specifically, to a lifting device. Background Technology
[0002] A submersible pump is a type of pump that can operate underwater. It mainly consists of a motor, impeller, pump body, and sealing devices, and is widely used in agricultural irrigation, industrial drainage, urban sewage treatment, water conservancy projects, and deep well water extraction. The working principle of a submersible pump is that the motor is directly connected to the pump body, which is entirely submerged in the liquid. The impeller rotates at high speed driven by the motor, energizing the liquid through centrifugal or axial force. After being guided through the pump casing, the liquid is discharged from the outlet. Submersible pumps are classified in various ways, including clean water pumps, sewage pumps, and silt pumps, according to their application.
[0003] In related technologies, submersible pumps are typically placed and retrieved using an external rope. During descent and ascent, a single rope cannot guarantee the pump's balance, easily causing it to collide with the well's surrounding walls and resulting in damage. Furthermore, the user must observe from above the wellhead during placement and retrieval, posing a potential hazard. Utility Model Content
[0004] In order to at least address some of the shortcomings mentioned in the related technologies, this application provides a lifting device.
[0005] To achieve the above objectives, this application provides a lifting device for lifting a submersible pump. The lifting device includes a power assembly and a lifting assembly. The power assembly includes a power component and a transmission component. A transmission rope is wound around the transmission component, and the power component controls the extension or retraction of the transmission rope through the transmission component. The lifting assembly includes a guide component and a guide plate. The guide component includes a guide wheel, and the transmission rope is wound around the guide wheel and guided by the guide wheel to the guide component. The guide component includes a slide rail and a sliding plate. The slide rail is arranged along the lifting direction, and the sliding plate is slidably mounted on the slide rail. The end of the transmission rope away from the transmission component is connected to the sliding plate to drive the sliding plate to slide along the slide rail.
[0006] Furthermore, the lifting device includes a support frame, the support frame includes a frame body, a support plate is provided at the edge of the frame body in a vertical direction, and the guide member and the guide component are both provided on the support plate.
[0007] Furthermore, the guide member includes a guide shaft mounted on the support plate, and the guide wheel is mounted at the center of the guide shaft. The slide plate is vertically positioned below the guide shaft, and the transmission rope passes around the guide wheel and is connected to the slide plate vertically.
[0008] Furthermore, an extrusion member is provided at one end of the support plate away from the frame. The extrusion member includes an extrusion shaft and an extrusion wheel. The extrusion shaft is mounted on the support plate, and the extrusion wheel is mounted at the center of the support plate, for extruding the transmission rope that has passed around the guide wheel onto the guide wheel.
[0009] Furthermore, a fixing rod is provided on the support plate near the frame, and a protrusion is provided on the fixing rod. The slide rail is vertically disposed on the protrusion, and the slide rail extends away from the fixing rod.
[0010] Furthermore, at least two protrusions are provided on the fixing rod, and each protrusion is provided with a slide rail. A sleeve is correspondingly provided on the sliding plate, and the slide rail is inserted into the sleeve.
[0011] Furthermore, the slide plate includes a support plate and a connecting plate, the support plate being horizontally arranged, and the connecting plate being vertically arranged at the edge of the support plate; all the sleeves are vertically arranged on the connecting plate.
[0012] Furthermore, the support includes a plate, the power component includes a motor, the transmission component includes a take-up reel, and the transmission rope is wound around the take-up reel. The motor drives the take-up reel to rotate via a worm gear assembly.
[0013] Furthermore, a protective shell is provided on the plate body, and the protective shell is fitted over the motor and the winding reel. The protective shell has a through hole, through which the transmission rope passes.
[0014] Furthermore, the plate body is provided with mounting plates, and two mounting plates are symmetrically arranged on the plate body. The worm gear in the worm gear assembly is rotatably mounted between the two mounting plates via a rotating shaft, and is located on one end of the mounting plate away from the plate body. The winding reel is mounted on the rotating shaft; the worm in the worm gear assembly is connected to the output shaft of the motor.
[0015] The diameter of the winding reel is L1, and the height of the mounting plate is L2, satisfying 2L2>L1≥L2.
[0016] With the above technical solution, when using the lifting device of this application to lower the submersible pump, the submersible pump is placed on the sliding plate, the power component is activated, and the power component controls the extension of the transmission rope through the transmission component. Under the action of gravity, the sliding plate drives the submersible pump to slide downwards along the slide rail. After sliding to a suitable position, the power component is stopped, and the transmission component also stops. The sliding plate is then constrained at the current position by the combination of the transmission rope and gravity. When it is necessary to lift the submersible pump, the power component controls the retraction of the transmission rope through the transmission component, and the transmission rope can then drive the sliding plate upwards, lifting the submersible pump to a suitable position.
[0017] The lifting device of this application ensures safe and stable placement and retrieval of the submersible pump, preventing the pump from colliding with the well wall and avoiding damage, thus improving the reliability and safety of this application. During placement and retrieval, operators can determine the pump's movement distance by observing the extension or retraction of the transmission rope, eliminating the need to constantly observe the inside of the well and removing potential safety hazards for operators.
[0018] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 A schematic diagram of the lifting device provided in an embodiment of this application from one perspective; Figure 2 Provided for the embodiments of this application Figure 1 A magnified view of a section at point A in the middle; Figure 3 A structural schematic diagram of the lifting device provided in an embodiment of this application from another perspective; Figure 4 Provided for the embodiments of this application Figure 3 A magnified view of a section at point B in the middle.
[0021] icon: 100-Power assembly; 110-Power component; 111-Worm gear assembly; 112-Worm; 113-Worm gear; 120-Transmission component; 130-Transmission rope; 200-Lifting assembly; 210-Guide component; 211-Extrusion component; 220-Guide component; 221-Slide rail; 222-Slide plate; 223-Bearing plate; 224-Connecting plate; 225-Sleeve; 226-Fixing rod; 227-Protrusion; 300-Bracket; 310-Frame; 311-Support plate; 320-Plate body; 321-Mounting plate; 330-Protective shell. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0023] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not 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 application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0025] This embodiment provides a lifting device to solve the problem in related technologies that submersible pumps are easily damaged by bumps during placement and retrieval, and that there are safety hazards for operators.
[0026] Please see Figures 1 to 4This embodiment provides a lifting device for lifting a submersible pump. The lifting device includes a power assembly 100 and a lifting assembly 200. The power assembly 100 includes a power component 110 and a transmission component 120. A transmission rope 130 is wound around the transmission component 120, and the power component 110 controls the extension or retraction of the transmission rope 130 through the transmission component 120. The lifting assembly 200 includes a guide component 210 and a guide component 220. The guide component 210 includes a guide wheel, and the transmission rope 130 is wound around the guide wheel and guided by the guide wheel to the guide component 220. The guide component 220 includes a slide rail 221 and a slide plate 222. The slide rail 221 is arranged along the lifting direction, and the slide plate 222 is slidably mounted on the slide rail 221. The end of the transmission rope 130 away from the transmission component 120 is connected to the slide plate 222 to drive the slide plate 222 to slide along the slide rail 221.
[0027] Specifically, when using the lifting device of this embodiment to lift or place the submersible pump, the power component 110 controls the transmission component 120 to extend or retract the transmission rope 130, so that the slide plate 222 is in a suitable position for the operator to place the submersible pump.
[0028] The operator places the submersible pump on the slide plate 222. When the submersible pump needs to be positioned below the water surface for operation, the operator controls the transmission component 120 via the power component 110, causing the transmission component 120 to release the transmission rope 130. After the transmission rope 130 is released, the slide plate 222 moves downward along the slide rail 221 under the action of gravity until it reaches the appropriate position. At this point, the power component 110 stops, and the transmission component 120 also stops. The transmission rope 130 no longer extends, meaning that the transmission rope 130 no longer pulls the slide plate 222 downward, thus keeping the submersible pump in its current position for operation. To remove the submersible pump, the above process is reversed by operating the power component 110.
[0029] When the transmission rope 130 extends or retracts, it passes through the guide wheel. The guide wheel can guide the transmission rope 130 to the direction of the guide member 220, so that the transmission rope 130 can stably and reliably drive the slide plate 222 to move along the transmission direction.
[0030] The cooperation between the slide rail 221 and the slide plate 222 in the guide 220 is used to ensure that the submersible pump moves stably and reliably, without contacting the well wall. The slide plate 222 can only move along the slide rail 221. As long as the position of the slide rail 221 is set correctly, the slide plate 222 will not deviate or change its posture during movement, and the submersible pump will not contact the well wall due to changes in the movement path, thus preventing collisions.
[0031] The lifting device in this embodiment ensures the stable and controllable movement path of the submersible pump during placement and removal, preventing collisions with the well wall or other external environments and guaranteeing the pump's safety during movement. During operation, the operator does not need to remain at the wellhead; simply standing near the power unit 110 and controlling its start / stop, along with observing the extension or retraction of the transmission rope 130, determines the pump's downward or upward movement distance. This makes the overall operation more reliable and eliminates potential safety hazards.
[0032] In one embodiment, exemplarily, such as Figures 1 to 4 As shown, the lifting device includes a bracket 300, which includes a frame 310. A support plate 311 is vertically positioned at the edge of the frame 310, and guide members 210 and 220 are both mounted on the support plate 311. The slide rail 221 needs to extend vertically from the wellhead to a predetermined depth in the well. If the slide rail 221 is directly installed on the horizontal frame 310, the lower end of the slide rail 221 will interfere with the frame 310 itself or the ground, making long-distance vertical installation impossible. The vertically positioned support plate 311 raises the mounting points of the guide members 210 and 220 and suspends them above the plane of the frame 310, allowing the slide rail 221 to extend freely downwards from the mounting point of the support plate 311, passing through the opening in the center of the frame 310, and directly into the well without interfering with the frame 310, the ground, or other components.
[0033] The frame 310 of the bracket 300 serves as a base, providing a wide and stable support surface that effectively resists the overturning moment generated during lifting, preventing the entire device from tipping over. The support plate 311 is firmly connected to the frame 310, forming a rigid portal frame that provides a precise and non-deformable installation reference for the guide wheels and slide rails 221. This ensures that the positions of the guide wheels and slide rails 221 remain unchanged and their parallelism is good during long-term use, thereby guaranteeing high linearity and no wobbling of the slide plate 222.
[0034] The opening at the center of the frame 310 provides a channel for the vertical movement of the slide rail 221 and the transmission rope 130, avoiding physical obstruction. Operators can operate the power unit 110 from the side of the frame 310 or from a position away from the wellhead, while the slide rail 221, slide plate 222, and submersible pump move vertically in the central area, increasing the safe distance between personnel and dangerous areas and improving the safety of this embodiment.
[0035] In one embodiment, exemplarily, such as Figures 1 to 4As shown, the guide component 210 includes a guide shaft mounted on the support plate 311, with a guide wheel mounted at the center of the guide shaft. A slide plate 222 is vertically positioned below the guide shaft, and the transmission rope 130, after passing around the guide wheel, is connected vertically to the slide plate 222. The guide shaft, serving as the rotation axis of the guide wheel, is securely mounted on the support plate 311, providing a precise and rigid mounting reference for the guide wheel. The two ends of the guide shaft are fixed to the support plate 311, effectively resisting the lateral tension and vibration generated by the transmission rope 130 during operation, preventing the guide wheel from wobbling, shifting, or tilting. Furthermore, the stable axis support reduces additional stress on the bearings, lowers wear, and extends the service life of the guide wheel and bearings.
[0036] The guide wheel is mounted at the center of the guide shaft, and its position is fixed, ensuring that the turning point of the transmission rope 130 from the transmission component 120 to the slide plate 222 is constant. Regardless of whether the transmission rope 130 is extended or retracted, its incident and exit angles at the guide wheel remain stable, ensuring that the transmission rope 130 always runs along the preset path. Precise positioning and a stable wheel also effectively prevent the transmission rope 130 from detaching from the guide wheel or jumping off the groove, ensuring operational safety.
[0037] After passing over the guide wheel, the transmission rope 130 connects vertically downwards to the slide plate 222 below, ensuring that the direction of the lifting force is consistent with the direction of movement of the slide plate 222. This avoids lateral forces caused by rope angle deviation, preventing additional friction and jamming on the slide rail 221 due to lateral forces, which would increase energy consumption, reduce efficiency, and accelerate wear.
[0038] In one embodiment, exemplarily, such as Figures 1 to 4 As shown, a pressing member 211 is provided at one end of the support plate 311 away from the frame 310. The pressing member 211 includes a pressing shaft and a pressing wheel. The pressing shaft is mounted on the support plate 311, and the pressing wheel is mounted at the center of the support plate 311. It is used to press the transmission rope 130, which is wrapped around the guide wheel, onto the guide wheel. During the lifting or lowering of the submersible pump, the transmission rope 130 moves on the guide wheel. Due to factors such as inertial impact during start-up or stopping, elastic expansion and contraction of the rope when lifting heavy objects, or external vibration or impact, the transmission rope 130 may move laterally or even jump completely out of the wheel groove when moving on the guide wheel, causing a serious accident. In this embodiment, the pressing wheel presses the transmission rope 130 tightly into the wheel groove of the guide wheel from above, forming a physical barrier and actively preventing the transmission rope 130 from detaching from the guide wheel upwards or laterally. Even under severe vibration or impact loads, it can greatly reduce the risk of jumping out of the groove and improve the reliability and structural rationality of this embodiment.
[0039] Preventing rope slippage means avoiding sudden shutdowns caused by rope detachment. Operators do not need to worry about accidental rope slippage and can continuously perform lifting or lowering operations, avoiding production delays caused by malfunctions.
[0040] In one embodiment, exemplarily, such as Figures 1 to 4 As shown, a fixing rod 226 is provided on the support plate 311 near the frame 310, and a protrusion 227 is provided on the fixing rod 226. A slide rail 221 is vertically mounted on the protrusion 227, extending away from the fixing rod 226. The slide rail 221 needs to start from above the wellhead and extend vertically downwards, with its upper mounting point located directly above the wellhead, and it must not interfere with the support plate 311 or the frame 310 itself. By providing the protrusion 227 on the fixing rod 226, the mounting point of the slide rail 221 is offset towards the center of the well, allowing the slide rail 221 to be laid directly vertically downwards from the protrusion 227, avoiding the support plate 311 and the frame 310 below, ensuring an unobstructed installation path for the slide rail 221. The position of the protrusion 227 can be precisely designed to ensure that the slide rail 221 can be laid in the preset position, providing the optimal path for the vertical movement of the submersible pump.
[0041] The fixing rod 226 is mounted on the support plate 311, and the protrusion 227 is fixed to the fixing rod 226, forming a rigid support chain. When the slide plate 222 moves on the slide rail 221, especially when carrying a submersible pump, a bending moment is generated on the upper end of the slide rail 221. The short cantilever structure formed by the fixing rod 226 and the protrusion 227 can effectively resist this bending moment, preventing the slide rail 221 from bending, deforming, or loosening at its root. The stable installation base ensures that the slide rail 221 has high verticality and no wobbling, thus making the lifting and lowering of the slide plate 222 and the submersible pump smooth and linear.
[0042] In one embodiment, exemplarily, such as Figures 1 to 4 As shown, at least two protrusions 227 are provided on the fixed rod 226, and each protrusion 227 is provided with a slide rail 221. A sleeve 225 is correspondingly provided on the slide plate 222, and the slide rail 221 is inserted into the sleeve 225. Although a single slide rail 221 can guide the slide plate 222 to move up and down, the slide plate 222 is prone to swaying, twisting, or tilting when subjected to eccentric loads or lateral forces. The multiple slide rails 221 on at least two protrusions 227 provide multiple constraint points for the slide plate 222, which can effectively constrain the pitch, yaw, and roll degrees of freedom of the slide plate 222, ensuring that it always maintains a horizontal attitude during the lifting and lowering process, and will not tilt forward or backward or sway left or right. Of course, the multi-rail system can also better ensure the straightness of the slide plate 222's movement, making its path more precise and further reducing the risk of collision with the well wall.
[0043] The weight and motion load of the submersible pump are distributed across multiple slide rails 221, reducing the unit load on each slide rail 221. This significantly increases the overall load-bearing capacity and bending and torsional stiffness of the entire guiding system, enabling the safe and reliable lifting of heavier submersible pumps. Even if the submersible pump is slightly eccentrically placed on the slide plate 222, the multi-rail system effectively balances the eccentric load moment, preventing the slide plate 222 from jamming or the slide rails 221 from deforming.
[0044] The slide rail 221 is inserted into the sleeve 225 on the slide plate 222 to prevent the slide plate 222 from accidentally detaching from the slide rail 221. Even under severe vibration or impact, the sleeve 225 can confine the slide rail 221 internally, ensuring high safety. The fit between the inner wall of the sleeve 225 and the outer wall of the slide rail 221 also has a certain degree of self-alignment capability, which can slightly compensate for installation errors and make the movement smoother. In addition, the sliding mating surfaces of the sleeve 225 and the slide rail 221 are located internally, making them less susceptible to the intrusion of external dust, mud, or debris, reducing wear and extending service life.
[0045] In one embodiment, exemplarily, such as Figures 1 to 4 As shown, the slide plate 222 includes a support plate 223 and a connecting plate 224. The support plate 223 is horizontally positioned, and the connecting plate 224 is vertically positioned at the edge of the support plate 223. All sleeves 225 are vertically positioned on the connecting plate 224. This clearly separates the functions of the slide plate 222. The support plate 223 horizontally supports the submersible pump, providing a large and flat load-bearing surface. The connecting plate 224 vertically connects to and installs the guide sleeves 225, responsible for their fit with the slide rail 221 and for force transmission. This avoids directly drilling holes or welding sleeves 225 onto the load-bearing support plate 223, maintaining the integrity and strength of the support plate 223, while providing an independent and stable space for the installation of the sleeves 225.
[0046] The weight of the submersible pump acts on the support plate 223, is transmitted through the connecting plate 224, and then acts on the slide rail 221 through the sleeve 225. Because the connecting plate 224 is vertically positioned at the edge of the support plate 223, the stress point of the slide rail 221 is closer to the outer edge of the support plate 223. This reduces the overturning moment and bending stress generated by the weight of the submersible pump on the support plate 223, preventing the large or heavily loaded support plate 223 from sagging or twisting in the middle after long-term use, thus ensuring the long-term flatness of the load-bearing surface.
[0047] The combination of the bearing plate 223 and the connecting plate 224 forms a T-shaped reinforced structure, whose bending and torsional stiffness is far superior to that of a simple flat plate. When the submersible pump swings in the well or is impacted by water flow, lateral forces are generated. The vertical connecting plate 224 can effectively resist these lateral forces, preventing the slide plate 222 from bending or twisting laterally. The enhanced rigidity also ensures that the slide plate 222 does not deform or shake during lifting and lowering, resulting in smoother and more reliable movement.
[0048] In one embodiment, exemplarily, such as Figures 1 to 4 As shown, the bracket 300 includes a plate 320, the power component 110 includes a motor, the transmission component 120 includes a take-up reel, and the transmission rope 130 is wound around the take-up reel. The motor drives the take-up reel to rotate through the worm gear assembly 111. The worm gear 113 and worm 112 transmission has a unidirectional transmission characteristic. Normally, the worm 112 can drive the worm gear 113, but it is difficult for the worm gear 113 to drive the worm 112 in the opposite direction. In this embodiment, when the motor stops working, due to the self-locking characteristic of the worm gear 113 and worm 112, the submersible pump can be prevented from sliding uncontrollably due to gravity when hovering or experiencing an accidental power outage, thus improving the safety of this embodiment.
[0049] The worm gear 113 and worm 112 transmission can achieve a large reduction ratio in a single stage. A large reduction ratio means that the motor's output torque is significantly amplified, allowing even a smaller motor to drive a heavy submersible pump, achieving a smooth and powerful lift. This reduces the need for a high-torque motor, allowing for the selection of more compact, efficient, and low-cost motors.
[0050] The motor directly drives the winding reel via worm gear 113 and worm 112, resulting in a short power transmission path, high efficiency, and low loss. The motor's speed and start / stop can be precisely controlled. Combined with the stable transmission of worm gear 113 and worm 112, the rotation of the winding reel is smooth and controllable, thereby achieving precise control over the submersible pump's lifting speed and position.
[0051] In one embodiment, exemplarily, such as Figures 1 to 4 As shown, a protective shell 330 is provided on the plate 320, and the protective shell 330 is fitted over the motor and the winding reel. The protective shell 330 has a through hole through which the transmission rope 130 passes. The protective shell 330 effectively prevents common environmental contaminants such as dust, mud, water mist, and rainwater from entering the motor and the transmission mechanism of the winding reel. In humid, salt spray, or chemical gas environments, the protective shell 330 isolates corrosive media, protecting the motor windings and metal parts. It also prevents leaves, gravel, tools, etc., from accidentally falling into or getting caught in the winding reel and transmission mechanism, causing jamming, damage, or safety accidents. Isolating from harsh environments reduces the risk of motor burnout, bearing corrosion, and gear wear, extending the service life and maintenance cycle of core components.
[0052] When the motor and winding reel are running, their rotating shafts, gears, and the edges of the winding reel are all potential hazards. The protective housing 330 forms a physical barrier, effectively preventing operators, clothing, tools, etc., from accidentally coming into contact with these moving parts, thus avoiding serious accidents such as entanglement and pinching.
[0053] In one embodiment, exemplarily, such as Figures 1 to 4As shown, a mounting plate 321 is provided on the plate body 320, and two mounting plates 321 are symmetrically arranged on the plate body 320. The worm gear 113 in the worm gear assembly 111 is rotatably mounted between the two mounting plates 321 via a rotating shaft, and is located at the end of the mounting plate 321 away from the plate body 320. The winding reel is mounted on the rotating shaft; the worm 112 in the worm gear assembly 111 is connected to the output shaft of the motor.
[0054] The diameter of the winding reel is L1, and the height of the mounting plate 321 is L2, satisfying 2L2>L1≥L2.
[0055] The two mounting plates 321 are symmetrically arranged, providing end supports for the shaft and forming a simply supported beam structure, which effectively resists the bending deformation of the shaft when bearing heavy loads. The symmetrical installation ensures the parallelism and concentricity of the shaft, making the meshing of the worm gear 113 and worm 112 smooth and accurate, reducing vibration and noise.
[0056] The take-up reel rotates when winding up and unwinding the drive rope 130. If the diameter of the take-up reel is too large, its lower edge may collide with the support plate 320 below. By limiting the diameter of the take-up reel, it is ensured that the lowest point of the take-up reel is always higher than the upper surface of the plate 320, or even if it is very close, a safety gap is left, thus avoiding physical collisions during rotation.
[0057] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.
[0058] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A lifting device for lifting a submersible pump, characterized in that, The lifting device includes: A power assembly (100) includes a power component (110) and a transmission component (120). A transmission rope (130) is wound around the transmission component (120). The power component (110) controls the extension or retraction of the transmission rope (130) through the transmission component (120). The lifting assembly (200) includes a guide (210) and a guide (220). The guide (210) includes a guide wheel, and the transmission rope (130) is wound around the guide wheel and guided by the guide wheel to the guide (220). The guide (220) includes a slide rail (221) and a slide plate (222). The slide rail (221) is arranged along the lifting direction, and the slide plate (222) is slidably mounted on the slide rail (221). The end of the transmission rope (130) away from the transmission member (120) is connected to the slide plate (222) for driving the slide plate (222) to slide along the slide rail (221).
2. The lifting device according to claim 1, characterized in that, The lifting device includes a bracket (300), the bracket (300) includes a frame (310), a support plate (311) is provided at the edge of the frame (310) in the vertical direction, and the guide (210) and the guide (220) are both provided on the support plate (311).
3. The lifting device according to claim 2, characterized in that, The guide member (210) includes a guide shaft, which is mounted on the support plate (311), and the guide wheel is mounted at the center of the guide shaft; The slide plate (222) is vertically positioned below the guide shaft, and the transmission rope (130) is wound around the guide wheel and then vertically connected to the slide plate (222).
4. The lifting device according to claim 3, characterized in that, An extrusion member (211) is provided at one end of the support plate (311) away from the frame (310), and the extrusion member (211) includes an extrusion shaft and an extrusion wheel; The extrusion shaft is mounted on the support plate (311), and the extrusion wheel is mounted at the center of the support plate (311) to extrude the transmission rope (130) that passes around the guide wheel onto the guide wheel.
5. The lifting device according to claim 2, characterized in that, A fixing rod (226) is provided on the support plate (311) near the frame (310), and a protrusion (227) is provided on the fixing rod (226). The slide rail (221) is vertically disposed on the protrusion (227), and the slide rail (221) extends in a direction away from the fixed rod (226).
6. The lifting device according to claim 5, characterized in that, At least two of the protrusions (227) are provided on the fixed rod (226), and each of the protrusions (227) is provided with the slide rail (221). A sleeve (225) is correspondingly provided on the slide plate (222), and the slide rail (221) is inserted into the sleeve (225).
7. The lifting device according to claim 6, characterized in that, The slide plate (222) includes a support plate (223) and a connecting plate (224). The support plate (223) is horizontally arranged, and the connecting plate (224) is arranged vertically at the edge of the support plate (223). The sleeves (225) are all arranged vertically on the connecting plate (224).
8. The lifting device according to claim 2, characterized in that, The bracket (300) includes a plate (320), the power component (110) includes a motor, the transmission component (120) includes a winding reel, and the transmission rope (130) is wound around the winding reel; The motor drives the winding reel to rotate via a worm gear assembly (111).
9. The lifting device according to claim 8, characterized in that, A protective shell (330) is provided on the plate (320), and the protective shell (330) is sleeved on the outside of the motor and the winding reel; The protective shell (330) has a through hole, through which the transmission rope (130) passes.
10. The lifting device according to claim 8, characterized in that, The plate (320) is provided with a mounting plate (321), and two mounting plates (321) are symmetrically arranged on the plate (320); The worm gear (113) in the worm gear assembly (111) is rotatably mounted between the two mounting plates (321) via a rotating shaft, and is located on the mounting plate (321) at one end away from the plate body (320). The winding reel is mounted on the rotating shaft. The worm (112) in the worm gear assembly (111) is connected to the output shaft of the motor. The diameter of the winding reel is L1, and the height of the mounting plate (321) is L2, satisfying 2L2>L1≥L2.