A positioning device for centrifugal pump installation

Abstract

This disclosure relates to the technical field of centrifugal pump installation. One embodiment of this disclosure provides a positioning device for centrifugal pump installation, comprising: a fixed base and a top frame. The top frame is disposed on the fixed base, and a lifting assembly is disposed on the top frame. A rectangular slot is formed on the surface of the fixed base, and a support assembly is disposed within the rectangular slot. The lifting assembly includes a pair of side frames, which are fixed to the bottom sides of the top frame. A swing frame is rotatably connected to the side frames via a rotating shaft. A support rod is provided at the lower end of the swing frame, and a worm gear is provided at one end of the rotating shaft of each support rod. A drive shaft is rotatably connected to one end of the pair of side frames, and a worm is provided at both ends of the drive shaft. The worm meshes with the worm gear, and the drive shaft is driven to rotate by electricity. A portal frame is fixed on the fixed base. This technical solution solves the technical problem in the prior art where the relatively heavy centrifugal pump makes it inconvenient to move and position the pump body and pump base during assembly, thus increasing the difficulty of installation.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of centrifugal pump installation, and more specifically, to a positioning device for centrifugal pump installation. Background Technology

[0002] Centrifugal pumps are widely used as important fluid transport devices in many fields such as industrial production, municipal water supply, and agricultural irrigation. They operate by utilizing the centrifugal motion of water caused by the rotation of an impeller. Before starting the pump, the pump casing and suction pipe must be filled with water. Then, the motor is started, causing the pump shaft to drive the impeller and water to rotate at high speed. The water undergoes centrifugal motion, being thrown towards the outer edge of the impeller and flowing into the pump's discharge pipe through the flow channel of the volute casing. The stable operation of a centrifugal pump is closely related to its installation quality, and the precise assembly of the pump body and pump base is a key factor in ensuring this quality.

[0003] However, due to their inherent structural characteristics, centrifugal pumps typically have a certain weight, especially large industrial centrifugal pumps, which are often quite heavy. During actual installation, when assembling the pump body and pump base, the significant weight of the pump makes it difficult for workers to easily move and adjust the pump body. This makes it challenging to quickly and accurately find a suitable installation position for the pump body when docking with the pump base, resulting in difficulties in ensuring the positioning accuracy between the two.

[0004] The difficulty in moving and positioning the heavy pump significantly increases the complexity of installation. This not only requires substantial manpower and time, extending the installation cycle, but also risks damaging the pump body or base due to improper operation during repeated adjustments, thus affecting the equipment's lifespan. Furthermore, inaccurate positioning can lead to significant vibration and noise during centrifugal pump operation, reducing the stability and safety of the equipment and even affecting the normal operation of the entire fluid transport system. Therefore, developing a positioning device that can alleviate the inconvenience of moving and positioning centrifugal pumps during installation is of great significance for improving the efficiency and quality of centrifugal pump installation. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a positioning device for centrifugal pump installation, which solves the technical problem in the prior art that the centrifugal pump is relatively heavy, making it inconvenient to move and position it during assembly between the pump body and the pump base, thus increasing the difficulty of installation.

[0006] According to one aspect, at least one embodiment of this disclosure provides a positioning device for installing a centrifugal pump, comprising:

[0007] A fixed base and a top frame, wherein the top frame is mounted on the fixed base;

[0008] A hoisting assembly, which is mounted on the top frame;

[0009] A rectangular groove and a support assembly, wherein the rectangular groove is formed on the surface of the fixed base, and the support assembly is disposed within the rectangular groove;

[0010] The hoisting assembly includes a pair of side frames, which are fixed to the bottom sides of the top frame. A swing frame is rotatably connected inside the side frame via a rotating shaft. A support rod is provided at the lower end of the swing frame. A worm gear is provided at one end of the rotating shaft of each support rod. A drive shaft is rotatably connected to one end of the pair of side frames.

[0011] As a further technical solution, worm gears are provided at both ends of the transmission shaft, the worm gears mesh with the worm wheel, the transmission shaft is driven to rotate by electricity, and a portal frame is fixed on the fixed base.

[0012] As a further technical solution, a pair of connecting rods are provided at the bottom of the top frame, and the lower end of the connecting rods is movably fitted inside the portal frame. The top frame is connected to the portal frame by a linear drive.

[0013] As a further technical solution, the support assembly includes a pair of round rods, both of which are fixed to the inner surface of the rectangular groove. A movable platform is slidably connected to the round rods, and the two sides of the movable platform are slidably connected to the rectangular groove via slide rails.

[0014] As a further technical solution, the surface of the mobile platform is provided with a positioning frame, and a pair of grooves are opened at one end of the bottom of the mobile platform. A support pulley is rotatably connected in the groove, and the lower end of the support pulley is located on the same plane as the bottom surface of the fixed seat.

[0015] As a further technical solution, a notch is provided at the bottom of the mobile platform, and a handle is installed in the notch.

[0016] As a further technical solution, the threads of the pair of worms are in opposite directions.

[0017] As a further technical solution, the positioning frame and the surface of the moving platform are connected by an insertion device, and the positioning frame has an overall L-shaped structure.

[0018] The beneficial effects of the embodiments disclosed herein are as follows:

[0019] 1. In this disclosure, the hoisting assembly solves the problem of difficult handling of centrifugal pump motors through worm gear transmission and linear drive. The swing frame synchronously clamps the motor under the drive of the worm gear, the support rod provides stable support, and the self-locking property of the worm gear ensures reliable clamping. The linear drive smoothly raises and lowers the top frame, precisely adjusting the motor height, and the connecting rod guides to prevent tilting. This design eliminates the need for manual lifting, reducing labor intensity, enabling rapid alignment of the motor and base, improving installation efficiency, and preventing equipment damage due to improper operation, thus ensuring installation safety.

[0020] 2. In this disclosure, the support assembly solves the problem of inaccurate positioning of the centrifugal pump base through a movable platform and positioning structure. The movable platform slides along the round rod and slide rail, and the support pulleys reduce friction, facilitating easy transfer of the base; the L-shaped positioning frame restricts the base position and prevents sliding deviation, while the insert design adapts to bases of different specifications. This structure ensures that the base is accurately moved under the motor, enabling rapid docking with the hoisting assembly, reducing repeated adjustment time, improving installation accuracy, adapting to the installation needs of different models of centrifugal pumps, and enhancing equipment versatility. Attached Figure Description

[0021] 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.

[0022] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0023] Figure 2 This is an isometric drawing of the present disclosure;

[0024] Figure 3 This is an isometric drawing from another perspective of this disclosure;

[0025] In the diagram: 1. Fixed base; 2. Top frame; 3. Rectangular groove; 4. Lifting assembly; 4-1. Side frame; 4-2. Swing frame; 4-3. Support rod; 4-4. Worm gear; 4-5. Drive shaft; 4-6. Worm; 4-7. Portal frame; 4-8. Connecting rod; 5. Support assembly; 5-1. Round rod; 5-2. Moving platform; 5-3. Positioning frame; 5-4. Groove; 5-5. Support pulley; 6. Notch; 7. Handle. 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 1-3 As shown, a positioning device for installing a centrifugal pump is illustrated in one embodiment of this disclosure, comprising:

[0033] A fixed base 1 and a top frame 2, wherein the top frame 2 is mounted on the fixed base 1;

[0034] Lifting assembly 4, which is mounted on the top frame 2;

[0035] A rectangular groove 3 and a support component 5 are provided. The rectangular groove 3 is formed on the surface of the fixed base 1, and the support component 5 is disposed in the rectangular groove 3.

[0036] The hoisting assembly 4 includes a pair of side frames 4-1, which are fixed to the bottom sides of the top frame 2. A swing frame 4-2 is rotatably connected to the side frame 4-1 via a rotating shaft. A support rod 4-3 is provided at the lower end of the swing frame 4-2. A worm gear 4-4 is provided at one end of the rotating shaft of each support rod 4-3. A transmission shaft 4-5 is rotatably connected to one end of the pair of side frames 4-1. A worm gear 4-6 is provided at both ends of the transmission shaft 4-5. The worm gear 4-6 meshes with the worm gear 4-4. The transmission shaft 4-5 is driven to rotate by electricity. A portal frame 4-7 is fixed on the fixed base 1. A pair of connecting rods 4-8 are provided at the bottom of the top frame 2. The lower ends of the connecting rods 4-8 are movably fitted into the portal frame 4-7. The top frame 2 is connected to the portal frame 4-7 by a linear drive.

[0037] In some examples, to achieve stable hoisting and installation of the centrifugal pump motor, a hoisting assembly 4 is designed. This assembly includes side frames 4-1 symmetrically distributed on both sides of the bottom of the top frame 2. A swing frame 4-2 is rotatably connected to the side frames 4-1 via a rotating shaft, and a support rod 4-3 at the lower end supports the bottom of the motor. A worm gear 4-4 at one end of the rotating shaft meshes with a worm 4-6 on a drive shaft 4-5 at one end of the side frame 4-1. The drive shaft 4-5 is electrically driven to rotate.

[0038] The connecting rod 4-8 at the bottom of the top frame 2 is movably fitted inside the portal frame 4-7 on the fixed base 1. The linear drive device connects the top frame 2 and the portal frame 4-7, and can drive the top frame 2 to rise and fall. During operation, the electric drive transmission shaft 4-5 rotates, the worm gear 4-6 drives the worm wheel 4-4 to rotate, causing the swing frame 4-2 to swing around the rotation axis, and the support rod 4-3 rotates inward to clamp the two sides of the motor; the linear drive pushes the top frame 2 to rise, and the motor is lifted by the support rod 4-3.

[0039] The worm gear 4-4 and worm 4-6 transmission have a self-locking function, which can fix the angle of the swing frame 4-2 and ensure reliable clamping. The connecting rod 4-8 cooperates with the gantry frame 4-7 to guide the vertical lifting and lowering of the top frame 2, preventing tilting during hoisting. This component can precisely clamp the motor and adjust its height, facilitating the docking and installation of the centrifugal pump and motor, and improving installation efficiency and accuracy.

[0040] like Figures 1-3As shown in the figure, the support assembly 5 in this embodiment includes a pair of round rods 5-1, both of which are fixed to the inner surface of the rectangular groove 3. A movable platform 5-2 is slidably connected to the round rods 5-1. The two sides of the movable platform 5-2 are slidably connected to the rectangular groove 3 via slide rails. A positioning frame 5-3 is provided on the surface of the movable platform 5-2. A pair of grooves 5-4 are opened at one bottom end of the movable platform 5-2. A support pulley 5-5 is rotatably connected in the grooves 5-4. The lower end of the support pulley 5-5 is located on the same plane as the bottom surface of the fixed base 1.

[0041] In some examples, to achieve precise placement and positioning of the centrifugal pump base, a support component 5 is designed. This component includes a circular rod 5-1 fixed parallel to the rectangular groove 3. A movable platform 5-2 is slidably fitted onto the circular rod 5-1, and its two sides are slidably connected to the rectangular groove 3 via slide rails to ensure smooth movement. The positioning frame 5-3 on the surface of the movable platform 5-2 can engage with the centrifugal pump base to achieve initial positioning.

[0042] The support pulley 5-5 inside the groove 5-4 at the bottom of the movable platform 5-2 is flush with the bottom surface of the fixed base 1. When the movable platform 5-2 is pushed, the support pulley 5-5 rolls in contact with the ground, reducing friction. The movable platform 5-2 can slide along the round rod 5-1 and the slide rail, moving the base to the installation position. The round rod 5-1 and the slide rail provide dual guidance to ensure the linear movement of the movable platform 5-2 and prevent deviation; the support pulley 5-5 makes movement easier, and the positioning frame 5-3 restricts the position of the base and prevents slippage.

[0043] This component can smoothly move the centrifugal pump base to the underside of the motor. With the height adjustment of the hoisting component 4, it can achieve precise docking between the base and the motor, adapting to the installation and positioning requirements of centrifugal pumps of different specifications and improving the convenience and accuracy of installation.

[0044] For example, such as Figure 3 As shown, the bottom of the mobile platform 5-2 is provided with a notch 6, and a handle 7 is installed in the notch 6.

[0045] In some examples, the notch 6 at the bottom of the movable stage 5-2 is U-shaped, and the handle 7 is fixed to the inner wall of the notch 6 at both ends. The height of the handle 7 is lower than the bottom surface of the movable stage 5-2, so it does not affect the operation of the support pulley 5-5. When pushing the movable stage 5-2, the operator can hold the handle 7 and apply force, and move it easily with the help of the rolling of the support pulley 5-5. The notch 6 design prevents the handle 7 from being exposed, avoiding damage from collisions, while also making it easy to grip and apply force, thus improving the ease of operation of the movable stage 5-2.

[0046] For example, such as Figure 2 As shown, the thread directions of the pair of worms 4-6 are opposite.

[0047] In some examples, a pair of worm gears 4-6 have opposite thread directions, meshing with corresponding worm wheels 4-4 on both sides. When the drive shaft 4-5 rotates, the reverse threads cause the worm gears 4-6 on both sides to rotate in the opposite direction, allowing the two swing arms 4-2 to swing inward or outward synchronously. This ensures that the support rod 4-3 clamps or releases the motor simultaneously, preventing unilateral movement from causing the motor to tilt, ensuring balanced force on the motor during hoisting, and improving the symmetry and stability of the clamping.

[0048] For example, such as Figure 1 As shown, the positioning frame 5-3 and the surface of the fixed base 1 are connected by an insertion, and the positioning frame 5-3 has an overall L-shaped structure.

[0049] In some examples, the L-shaped positioning bracket 5-3 has its vertical side inserted into a slot on the surface of the moving platform 5-2, while its horizontal side faces upward to support the centrifugal pump base. This insert connection facilitates quick installation and removal of the positioning bracket 5-3 and accommodates bases of different sizes. The horizontal side of the L-shape supports the base, while the vertical side restricts lateral movement. Combined with the sliding of the moving platform 5-2, this precisely positions the base to the installation location, enhancing positioning reliability.

[0050] In actual use: Place the centrifugal pump base on the positioning frame 5-3 of the moving platform 5-2. The L-shaped structure of the positioning frame 5-3 fits the edge of the base to prevent displacement. Hold the handle 7 and push the moving platform 5-2. The support pulley 5-5 rolls along the ground to reduce resistance. The round rod 5-1 and the slide rail provide double guidance, ensuring that the moving platform 5-2 slides smoothly along the rectangular groove 3, accurately moving the base to the installation area. Start the hoisting assembly 4. The electric drive drive shaft 4-5 rotates, and the worm gears 4-6 with opposite rotation directions at both ends synchronously drive the worm wheel 4-4 to rotate, causing the two swing frames 4-2 to swing symmetrically inward. The support rod 4-3 clamps against the side wall of the motor. The linear drive pushes the top frame 2 to rise vertically along the connecting rod 4-8, lifting the motor and adjusting the height as needed. Move the moving platform 5-2 to align the base mounting hole with the motor output shaft. Reverse the linear drive to slowly lower the motor, completing the docking installation. Finally, drive the drive shaft 4-5 to rotate in the opposite direction to release the support rod 4-3, and remove the centrifugal pump after installation.

[0051] 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 positioning device for installing a centrifugal pump, characterized in that, include: A fixed base (1) and a top frame (2), wherein the top frame (2) is disposed on the fixed base (1); Lifting assembly (4), which is mounted on the top frame (2); A rectangular groove (3) and a support assembly (5) are provided, wherein the rectangular groove (3) is formed on the surface of the fixed base (1) and the support assembly (5) is disposed in the rectangular groove (3); The hoisting assembly (4) includes a pair of side frames (4-1), which are fixed on both sides of the bottom of the top frame (2). A swing frame (4-2) is rotatably connected inside the side frame (4-1) via a rotating shaft. A support rod (4-3) is provided at the lower end of the swing frame (4-2). A worm gear (4-4) is provided at one end of the rotating shaft of each support rod (4-3). A transmission shaft (4-5) is rotatably connected at one end of the pair of side frames (4-1).

2. The positioning device for installing a centrifugal pump according to claim 1, characterized in that, Both ends of the drive shaft (4-5) are provided with worm gears (4-6), which mesh with the worm wheel (4-4). The drive shaft (4-5) is driven to rotate by electricity, and a portal frame (4-7) is fixed on the fixed base (1).

3. The positioning device for installing a centrifugal pump according to claim 2, characterized in that, The bottom of the top frame (2) is provided with a pair of connecting rods (4-8), the lower end of the connecting rods (4-8) is movably fitted inside the portal frame (4-7), and the top frame (2) is connected to the portal frame (4-7) by a linear drive.

4. A positioning device for installing a centrifugal pump according to claim 1, characterized in that, The support assembly (5) includes a pair of round rods (5-1), both of which are fixed to the inner surface of the rectangular groove (3). A movable platform (5-2) is slidably connected to the round rods (5-1), and the two sides of the movable platform (5-2) are slidably connected to the rectangular groove (3) via slide rails.

5. A positioning device for installing a centrifugal pump according to claim 4, characterized in that, The surface of the movable platform (5-2) is provided with a positioning frame (5-3). A pair of grooves (5-4) are opened at one end of the bottom of the movable platform (5-2). A support pulley (5-5) is rotatably connected in the groove (5-4). The lower end of the support pulley (5-5) is located on the same plane as the bottom surface of the fixed seat (1).

6. A positioning device for installing a centrifugal pump according to claim 4, characterized in that, The bottom of the mobile platform (5-2) is provided with a notch (6), and a handle (7) is installed in the notch (6).

7. A positioning device for installing a centrifugal pump according to claim 2, characterized in that, The thread directions of the pair of worms (4-6) are opposite.

8. A positioning device for installing a centrifugal pump according to claim 5, characterized in that, The positioning frame (5-3) and the surface of the moving platform (5-2) are connected by an insert, and the positioning frame (5-3) is generally L-shaped.

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