Vertical water pump impeller overhauling device

Abstract

A vertical water pump impeller maintenance device relates to the technical field of water pump stations. Comprising an upper-layer moving assembly and a lower-layer moving assembly, the upper-layer moving assembly is connected to the upper portion of the lower-layer moving assembly, the upper-layer moving assembly comprises an impeller placing platform used for moving in the Y direction, and gradienters are arranged at the four corner ends of the impeller placing platform correspondingly; the lower-layer moving assembly comprises a lower-layer platform used for moving in the X direction, and the impeller placing platform and the lower-layer platform are each provided with an impeller placing opening used for placing an impeller. The lower-layer moving assembly further comprises a pair of parallel base beams, first guide rails are arranged on the base beams, and the lower-layer platform is connected to the first guide rails of the pair of base beams through sliding blocks. The bottoms of the two ends of the pair of base beams are each provided with a pair of universal moving wheels, and the two ends of the pair of base beams are each provided with a pair of screw supporting feet. The device is convenient to operate, and the construction difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy pump stations, in particular to a vertical water pump impeller maintenance device. Background Art

[0002] During the maintenance and installation of vertical water pumps, the impeller maintenance process may seem simple, but it actually has a significant impact on the construction progress and quality. The traditional impeller maintenance solution: First, a "well" frame is set up on the base of the water pump inlet. The "well" frame is heavy and requires 4 to 5 people to lift it to the maintenance site. It is difficult to move, and the assembly steps are cumbersome, time-consuming and labor-intensive. It is extremely unscientific. After installation and fixation, the level and center of the impeller cannot be guaranteed. Then, the rotating part of the water pump (the main shaft and impeller) is lowered, and the impeller is placed on the flat surface of the "well" frame. The maintenance personnel enter the water pump guide vane through the manhole to remove the bolts connecting the impeller and the water pump shaft. After disassembly, the water pump shaft is lifted out of the water guide shaft socket, leaving the impeller placed on the "well" frame.

[0003] At this point, the "well" frame is not only immobile, but also requires maintenance personnel to complete maintenance procedures such as grinding, welding, rust removal, paint touch-up, and oiling the impeller and blades within the narrow pump foundation pit, which is extremely difficult to operate. Moreover, after the above procedures are completed, the center and level requirements cannot be guaranteed when the pump shaft is hoisted back to the guide vane body and connected to the impeller. Often, several maintenance personnel must use jacks to adjust the center and level the impeller in the east, west, south, and north positions of the "well" frame to align the main shaft screw holes with the impeller screw holes, and then reconnect the pump shaft and impeller, which not only wastes time but also makes the process cumbersome and complicated.

[0004] At the same time, the water pump shaft and impeller are very likely to tilt and displace when they are disassembled or reinstalled during maintenance construction, and the "well" frame used in traditional maintenance plans cannot adjust the inclination and center of the impeller and water pump shaft, resulting in difficulties in disassembling and reinstalling the bolts connecting the water pump shaft and the impeller, and also affecting the smooth lifting of the water pump shaft out and into the water guide shaft socket. After the "well" frame is placed in the water pump foundation pit, the space is often small, and the maintenance and construction of the impeller and surrounding flow-through components is very inconvenient, affecting the construction period.

[0005] If the impeller needs to be returned to the factory for blade repair, the impeller cannot be moved horizontally and can only be lifted upward along the axis of the pump. The process is complicated and the construction is difficult, which greatly extends the construction period and affects the pump's inability to quickly complete the repair and resume operation. Utility Model Content

[0006] In view of the above problems, the utility model provides a vertical water pump impeller maintenance device which has a simple structure, is convenient for maintenance and construction, and shortens the construction period.

[0007] The technical solution of the utility model is: a vertical water pump impeller maintenance device, comprising an upper movable assembly and a lower assembly,

[0008] The upper mobile component is connected above the lower mobile component.

[0009] The upper moving assembly includes an impeller placement platform for Y-direction movement, and a level is provided at each of the four corners of the impeller placement platform;

[0010] The lower moving assembly includes a lower platform for X-direction movement.

[0011] The impeller placement platform and the lower platform are respectively provided with impeller placement openings for placing the impeller.

[0012] The lower mobile assembly also includes a pair of parallel base beams,

[0013] A guide rail 1 is provided on the base beam, and the lower platform is connected to the guide rail 1 of a pair of base beams through a slider.

[0014] A pair of universal moving wheels are respectively provided at the bottoms of both ends of a pair of base beams, and a pair of screw support feet are respectively provided at both ends of a pair of base beams.

[0015] The upper moving assembly also includes a pair of parallel middle beams,

[0016] In the same plane, the middle beam is perpendicular to the base beam.

[0017] A pair of middle beams are respectively arranged on the top of the lower platform, a second guide rail is provided on the middle beam, and the impeller placement platform is connected to the second guide rail of the pair of middle beams through a slider.

[0018] Both ends of the middle beam extend out of the lower platform respectively, and the outer ends of a pair of middle beams are connected by a cross beam. Both ends of the cross beam are respectively provided with screw support feet and universal movable wheels.

[0019] Also includes upper screw adjuster,

[0020] The upper screw regulator includes an upper angle steel, an upper moving block and an upper screw. The upper angle steel is connected to the top of a pair of middle beams, and the upper moving block is arranged at the bottom of the impeller placement platform.

[0021] The upper screw rod passes through the upper angle steel and is connected to the upper moving block through a thread. A hand wheel is provided on the outer side of the upper screw rod.

[0022] Also includes lower screw adjuster,

[0023] The lower screw adjuster includes a lower angle steel, a lower moving block and a lower screw, wherein the lower angle steel is connected to the top of a pair of base beams, and the lower moving block is arranged at the bottom of the lower platform.

[0024] The lower screw rod passes through the lower angle steel and is connected to the lower moving block through a thread. A hand wheel is provided on the outer side of the lower screw rod.

[0025] During operation, the utility model realizes horizontal displacement adjustment in X and Y directions by arranging an upper moving component and a lower moving component, so that the impeller placement opening on the impeller placement platform coincides with the center of the water guide shaft socket of the water pump; universal moving wheels are installed on the base beam and the cross beam, so that the maintenance device can move smoothly to the specified position; the position fixation and load-bearing of the maintenance device, as well as the vertical height adjustment are realized by eight screw support feet installed on the bottom beam and the cross beam, and the impeller placement platform is leveled in conjunction with the spirit level; an oiling device, an annular slide rail and a universal manipulator are installed on the impeller placement platform, which can be used by maintenance personnel to complete the removal of the connecting bolts of the water pump shaft and the impeller, impeller maintenance and the like.

[0026] The utility model is easy to operate and reduces the difficulty of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the description of the prior art. In the drawings, the various parts are not necessarily drawn according to the actual scale.

[0028] Figure 1 This is a schematic diagram of the optimized structure of the utility model.

[0029] Figure 2 yes Figure 1 Explosion diagram,

[0030] Figure 3 yes Figure 2 A partial enlarged view of the M in the middle.

[0031] Figure 4 This is a schematic diagram of the structure of step S1 in the present invention. Figure 1 ,

[0032] Figure 5 This is a schematic diagram of the structure of step S1 in the present invention. Figure 2 ,

[0033] Figure 6 yes Figure 5 A partial schematic diagram of

[0034] Figure 7 This is a schematic diagram of the structure of step S6 in the present invention.

[0035] Figure 8 It is a structural diagram of the utility model;

[0036] In the figure, 1 is the upper mobile assembly, 11 is the impeller placement platform, 12 is the level, 13 is the middle beam, 14 is the guide rail 2, and 15 is the crossbeam.

[0037] 2 is the lower mobile component, 21 is the lower platform, 22 is the base beam, 23 is the guide rail 1, 24 is the slider, 25 is the universal moving wheel, 26 is the screw support foot,

[0038] 3 is the impeller placement port, 4 is the annular slide rail,

[0039] 5 is a manipulator, 51 is a manipulator arm, 52 is a manipulator claw,

[0040] 6 is a refueling device, 61 is a fuel tank, 62 is a fuel pipe,

[0041] 7 is the upper screw adjuster, 71 is the upper angle steel, 72 is the upper moving block, 73 is the upper screw, 74 is the hand wheel,

[0042] 8 is a lower screw regulator. DETAILED DESCRIPTION

[0043] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0044] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of this utility model. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation and are therefore not to be construed as limitations on this utility model. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0045] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0046] The utility model Figure 1-8As shown, the vertical water pump impeller maintenance device includes an upper moving component 1 and a lower moving component 2.

[0047] The upper moving assembly 1 is connected above the lower moving assembly 2.

[0048] The upper moving assembly 1 includes an impeller placement platform 11 for Y-direction movement, and a level 12 is provided at each of the four corners of the impeller placement platform for monitoring the level of the impeller placement platform;

[0049] The lower moving assembly 2 includes a lower platform 21 for X-direction movement. Figure 1 The XYZ coordinate system is marked in .

[0050] The impeller placement platform 11 and the lower platform 21 are respectively provided with an impeller placement opening 3 for placing the impeller, that is, both are provided with holes.

[0051] In a specific application, the optimized embodiment of the present utility model further includes an auxiliary component, wherein the auxiliary component includes a manipulator and a refueling component;

[0052] The top surface of the impeller placement platform is provided with an annular slide rail 4, the center line of the annular slide rail and the center line of the impeller placement opening are located in the same straight line, the diameter of the annular slide rail is larger than the diameter of the impeller placement opening, and the manipulator 5 is provided on the annular slide rail, and the manipulator 5 includes a manipulator arm 51 and a manipulator claw 52;

[0053] The manipulator can rotate 360° along the circular slide rail. The joints of the manipulator arm and the manipulator claw are universal structures and can be tightened for easy operation.

[0054] The refueling device 6 is installed on the impeller placement platform. The refueling device 6 includes an oil tank 61, an oil pipe 62 and a manual oil pressure pump. The oil pipe is connected to the oil tank through the manual oil pressure pump to replenish oil for the impeller.

[0055] During operation, the utility model realizes horizontal displacement adjustment in X and Y directions by arranging an upper moving component and a lower moving component, so that the impeller placement opening on the impeller placement platform coincides with the center of the water guide shaft socket of the water pump; universal moving wheels are installed on the base beam and the cross beam, so that the maintenance device can move smoothly to the specified position; the position fixation and load-bearing of the maintenance device, as well as the vertical height adjustment are realized by eight screw support feet installed on the bottom beam and the cross beam, and the impeller placement platform is leveled in conjunction with the spirit level; an oiling device, an annular slide rail and a universal manipulator are installed on the impeller placement platform, which can be used by maintenance personnel to complete the removal of the connecting bolts of the water pump shaft and the impeller, impeller maintenance and the like.

[0056] The lower mobile assembly 2 further includes a pair of parallel base beams 22.

[0057] A guide rail 1 23 is provided on the base beam, and the lower platform is connected to the guide rail 1 of a pair of base beams through a slider 24.

[0058] The lower platform is connected to the guide rail 1 through a slider to facilitate the sliding movement of the lower platform.

[0059] A pair of universal movable wheels 25 are respectively provided at the bottom of both ends of the pair of base beams, and a pair of screw support feet 26 are respectively provided at both ends of the pair of base beams.

[0060] Universal moving wheels are provided for easy movement; screw support feet are provided for easy support and load-bearing, and at the same time, Z-axis height adjustment is facilitated to keep the maintenance device level.

[0061] The upper moving assembly also includes a pair of parallel middle beams 13,

[0062] In the same plane, the middle beam 13 is perpendicular to the base beam 22.

[0063] A pair of middle beams 13 are respectively arranged on the top of the lower platform 21, and a second guide rail 14 is provided on the middle beam 13. The impeller placement platform 11 is connected to the second guide rail 14 of the pair of middle beams through a slider.

[0064] In this way, the impeller placing platform can slide reliably on the guide rail 2.

[0065] Both ends of the middle beam 13 extend out of the lower platform 21 , and the outer ends of a pair of middle beams are connected by a cross beam 15 . Both ends of the cross beam 15 are provided with screw support feet and universal movable wheels.

[0066] Similarly, universal movable wheels are provided for easy movement; screw support feet are provided for easy support and load-bearing, and at the same time, Z-axis height adjustment is facilitated to keep the maintenance device level.

[0067] Moreover, the distance between the universal movable wheels of a pair of cross beams is greater than the distance between the universal movable wheels at both ends of the base beam. Different distances can be set to meet the requirements of water inlets of pumps of different sizes.

[0068] Also includes an upper screw adjuster 7,

[0069] The upper screw adjuster 7 includes an upper angle steel 71, an upper moving block 72 and an upper screw 73. The upper angle steel 71 is connected to the top of a pair of middle beams 13, and the upper moving block 72 is provided at the bottom of the impeller placement platform 11.

[0070] The upper screw rod 73 passes through the upper angle steel 71 and is connected to the upper moving block 72 through a threaded connection. A hand wheel 74 is provided on the outer side of the upper screw rod.

[0071] The upper screw is driven to rotate by the hand wheel. Since the upper screw is threadedly connected to the upper moving block, it is easy to drive the impeller placement platform connected to the upper moving block to move, making adjustment convenient;

[0072] Also includes a lower screw adjuster 8,

[0073] The lower screw adjuster includes a lower angle steel, a lower moving block and a lower screw, wherein the lower angle steel is connected to the top of a pair of base beams, and the lower moving block is arranged at the bottom of the lower platform.

[0074] The lower screw rod passes through the lower angle steel and is connected to the lower moving block through a thread. A hand wheel is provided on the outer side of the lower screw rod.

[0075] The lower screw adjuster and the upper screw adjuster have the same structure and action principle. The lower screw adjuster is convenient for adjusting the movement of the lower platform.

[0076] In specific applications, the method of using the vertical water pump impeller maintenance device includes:

[0077] S1. Move the maintenance device to the water inlet of the water pump:

[0078] First, lift the screw support foot on the base beam, let the universal moving wheel on the base beam touch the ground, and move the maintenance device to the vicinity of the water pump foundation pit;

[0079] If the diameter of the water inlet of the pump is smaller than the width of the base beam, directly use the universal movable wheel on the base beam to move the maintenance device under the impeller, then lower the screw support foot to fix the maintenance device;

[0080] If the diameter of the water inlet of the water pump is larger than the width of the base beam, lower the screw support feet on the crossbeam to lift the screw support feet and the universal movable wheel on the base beam off the ground, then lower the universal movable wheel on the crossbeam, slightly lift the support feet on the crossbeam to allow the universal movable wheel on the crossbeam to fall to the ground to bear the force, push the maintenance device under the impeller, and then lower the screw support feet on the crossbeam to fix the maintenance device;

[0081] Two different sizes are set to facilitate adaptation to water pump inlets of different sizes and improve adaptability.

[0082] S2. Rough adjustment level of maintenance device:

[0083] If the screw support feet on the base beam bear weight, adjust the screw support feet on the base beam and use a spirit level to perform a rough adjustment of the impeller placement platform;

[0084] If the screw support feet on the beam bear weight, adjust the screw support feet on the beam and use a spirit level to roughly adjust the level of the impeller placement platform;

[0085] S3, Rough adjustment center of maintenance device:

[0086] After removing the motor shaft, use the special clamp for the water pump shaft and the hand hoist to slowly lower the water pump shaft and the impeller to the vicinity of the impeller placement platform. Measure the distance between the water pump shaft and the water guide shaft nest in the X and Y directions. Based on the difference between the distance values in the same X and Y directions, calculate the coarse center adjustment value of the impeller placement platform.

[0087] Adjust the upper and lower screw regulators according to the adjustment values, and then the maintenance personnel lower the water pump impeller and place it on the impeller placement platform;

[0088] S4. Fine-tune the level of the maintenance device: After the water pump impeller is placed on the impeller placement platform, adjust the screw support feet of the maintenance device and use a spirit level to fine-tune the level of the impeller placement platform;

[0089] S5. Fine-tuning the center of the maintenance device: After the fine-tuning level is completed, the maintenance personnel re-measure the distance values between the water pump shaft and the water guide shaft socket in the X and Y directions, and calculate the fine-tuning center adjustment value of the impeller placement platform based on the difference between the distance values in the same X and Y directions. According to the adjustment value, the upper and lower screw adjusters are adjusted respectively to make the impeller and water pump shaft located at the center of the water guide shaft socket, which is convenient for the maintenance personnel to remove the connecting bolts of the impeller and water pump shaft;

[0090] S6. Remove and hoist the maintenance device: Raise the screw support feet of the maintenance device, let the universal movable wheel touch the ground, move the maintenance device together with the impeller out of the water inlet of the water pump, and use the bridge crane hook to lift the maintenance device together with the impeller out of the water pump foundation pit to a spacious space, so that the maintenance personnel can use the manipulator and oiling device to complete the impeller maintenance process.

[0091] When using this maintenance device, the level and center of the impeller can be accurately adjusted when removing the bolts connecting the water pump shaft and the impeller. If the elevation meets the disassembly requirements, the mechanical claw can also clamp a special wrench (hydraulic) to replace the maintenance personnel to complete the bolt removal. After the water pump shaft is removed and hoisted out, the maintenance personnel can also smoothly move the impeller to a spacious location to perform other maintenance operations. At the same time, using the equipped refueling device and mechanical claw to clamp special wrenches, angle grinders, electric welding pliers, paint spray guns, oil pipes and other tools, it is very convenient to complete the maintenance processes such as blade disassembly, grinding, welding, rust removal, paint touch-up, and refueling. If the water pump requires an extensive overhaul, the maintenance device can be used to remove the impeller as a whole for hoisting and maintenance. The maintenance device in this utility model is universal for the maintenance and installation of vertical water pumps and meets the actual needs of different engineering sites.

[0092] Regarding the content disclosed in this case, the following points need to be explained:

[0093] (1) The drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design;

[0094] (2) In the absence of conflict, the embodiments and features of the embodiments disclosed in this case may be combined with each other to form new embodiments;

[0095] The above are only specific implementation methods disclosed in this case, but the protection scope of this disclosure is not limited thereto. The protection scope disclosed in this case should be based on the protection scope of the claims.

Claims

1. Vertical water pump impeller maintenance device, characterized in that: Including upper mobile components and lower mobile components, The upper mobile component is connected above the lower mobile component. The upper moving assembly includes an impeller placement platform for Y-direction movement, and a level is provided at each of the four corners of the impeller placement platform; The lower moving assembly includes a lower platform for X-direction movement. The impeller placement platform and the lower platform are respectively provided with impeller placement openings for placing the impeller.

2. The vertical water pump impeller maintenance device according to claim 1, characterized in that: The lower mobile assembly also includes a pair of parallel base beams, A guide rail 1 is provided on the base beam, and the lower platform is connected to the guide rail 1 of a pair of base beams through a slider.

3. The vertical water pump impeller maintenance device according to claim 2, characterized in that: A pair of universal moving wheels are respectively provided at the bottoms of both ends of a pair of base beams, and a pair of screw support feet are respectively provided at both ends of a pair of base beams.

4. The vertical water pump impeller maintenance device according to claim 3, characterized in that: The upper moving assembly also includes a pair of parallel middle beams, In the same plane, the middle beam is perpendicular to the base beam. A pair of middle beams are respectively arranged on the top of the lower platform, a second guide rail is provided on the middle beam, and the impeller placement platform is connected to the second guide rail of the pair of middle beams through a slider.

5. The vertical water pump impeller maintenance device according to claim 4, characterized in that: Both ends of the middle beam extend out of the lower platform respectively, and the outer ends of a pair of middle beams are connected by a cross beam. Both ends of the cross beam are respectively provided with screw support feet and universal movable wheels.

6. The vertical water pump impeller maintenance device according to claim 4, characterized in that: Also includes upper screw adjuster, The upper screw regulator includes an upper angle steel, an upper moving block and an upper screw. The upper angle steel is connected to the top of a pair of middle beams, and the upper moving block is arranged at the bottom of the impeller placement platform. The upper screw rod passes through the upper angle steel and is connected to the upper moving block through a thread. A hand wheel is provided on the outer side of the upper screw rod.

7. The vertical water pump impeller maintenance device according to claim 2, characterized in that: Also includes lower screw adjuster, The lower screw adjuster includes a lower angle steel, a lower moving block and a lower screw, wherein the lower angle steel is connected to the top of a pair of base beams, and the lower moving block is arranged at the bottom of the lower platform. The lower screw rod passes through the lower angle steel and is connected to the lower moving block through a thread. A hand wheel is provided on the outer side of the lower screw rod.

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