Maintenance auxiliary device for vertical split centrifugal pump

Abstract

The utility model discloses a vertical split centrifugal pump maintenance auxiliary device which comprises a guide mechanism, the guide mechanism is of a sliding rail structure, a dismounting and mounting mechanism is arranged on the guide mechanism, the dismounting and mounting mechanism comprises a supporting assembly, a first dismounting and mounting assembly is arranged on the supporting assembly, and a second dismounting and mounting assembly is arranged on the supporting assembly. The first dismounting and mounting assembly is used for being connected with a pump cover. The guide mechanism is arranged above the centrifugal pump to be disassembled and assembled, the disassembling and assembling mechanism capable of moving back and forth is arranged on the guide mechanism in a matched mode, the disassembling and assembling mechanism is used for shifting and maintaining structures such as a pump cover on the centrifugal pump according to needs, and the maintenance efficiency of the vertical split centrifugal pump is greatly improved.

Description

Technical Field

[0001] The utility model relates to a centrifugal pump disassembly tool, in particular to a vertical split-case centrifugal pump maintenance auxiliary device. Background Art

[0002] The disassembly and assembly of a vertical split case centrifugal pump when it needs to be repaired is very complicated. It is necessary to remove the motor power cord, motor, and motor base, and then remove the pump cover and rotor assembly for repair. After the repair is completed, they must be reassembled in sequence. When disassembling a vertical split case centrifugal pump, due to the lack of suitable tools, the pump body has to be disassembled and disassembled by manpower by hammering with a large hammer, which can easily cause damage to the middle section of the pump, the impeller, and the shaft. Especially when replacing parts, due to the lack of suitable tools, the pump has to be taken to the well for disassembly as a whole, which greatly increases the maintenance cost, reduces labor efficiency, and increases labor intensity.

[0003] Therefore, it is urgent to propose a vertical split-case centrifugal pump maintenance auxiliary device to solve the problem raised. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a vertical split case centrifugal pump maintenance auxiliary device that effectively improves the disassembly and installation efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a vertical split-case centrifugal pump maintenance auxiliary device, which includes a guide mechanism, the guide mechanism is a slide rail structure, and a disassembly and assembly mechanism is provided on the guide mechanism. The disassembly and assembly mechanism includes a support assembly, and a first disassembly and assembly assembly is provided on the support assembly. The first disassembly and assembly assembly is used to be connected to the pump cover.

[0006] Furthermore, the support assembly includes two parallel support plates and a connecting plate connecting the two support plates. A roller is provided on one side of the upper end of the support plate, a slide groove is provided on one side of the slide rail, and the roller is placed in the slide groove.

[0007] Furthermore, the support assembly includes two support plates arranged in parallel, and a connecting plate connecting the two support plates. A slider is provided on one side of the upper end of the support plate, and the slider is clamped on the slide rail.

[0008] Furthermore, the first disassembly and assembly component includes at least two fixing blocks, at least two of the fixing blocks are fixedly arranged on one side of the connecting plate, a threaded groove is opened on the fixing block, a bolt is clamped in the threaded groove, and the two threaded grooves are used to match the fixing hole setting of the pump cover.

[0009] Furthermore, a support block is provided on the support plate, and the connecting plate is fixed on the support block.

[0010] Furthermore, a support hole is provided on the support block, and a connecting hole is provided on the connecting plate. The connecting hole matches the support hole setting. The connecting plate is fixed to the support block by a screw, and the screw passes through the connecting hole of the connecting plate and is fixed in the support hole.

[0011] Furthermore, a second disassembly assembly is provided on the support assembly, and the second disassembly assembly is used to be connected to the rotor assembly.

[0012] Furthermore, the second disassembly and assembly component includes two support arms, which extend from one side of the connecting plate. A slot is provided at the end of the support arm, and a limiting arm is held in the slot. The limiting arm connects the two support arms, and the two support arms, the limiting arm and the connecting plate are surrounded to form a limiting opening.

[0013] Furthermore, a through hole is provided on the support arm, a push rod is clamped in the through hole, and the push rod passes through the through hole and protrudes out of the upper end surface of the support arm, and the push rod is used to abut against the bearing seat.

[0014] Furthermore, a through slot is provided on the end of the support arm, which passes through the support arm and connects to the card slot, and limiting slots are provided at both ends of the limiting arm. The limiting slots are matched with the through slot, and the limiting arm is fixed to the support arm through a fixing member, and the fixing member passes through the through slot and the limiting slot.

[0015] To sum up, the utility model provides a maintenance auxiliary device for a vertical split-case centrifugal pump. By arranging a guide mechanism above the centrifugal pump to be disassembled and assembled, and coordinating a disassembly and assembly mechanism that moves back and forth on the guide mechanism, the disassembly and assembly mechanism is used to shift and repair structures on the centrifugal pump, such as the pump cover, as needed, thereby greatly improving the maintenance efficiency of the vertical split-case centrifugal pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a vertical split case centrifugal pump of the utility model;

[0017] Figure 2 This is a structural diagram of a vertical split-case centrifugal pump according to the utility model with the motor base hidden;

[0018] Figure 3 This is a schematic structural diagram of the first vertical split case centrifugal pump maintenance auxiliary device of the utility model;

[0019] Figure 4 This is a structural diagram of a second vertical split case centrifugal pump maintenance auxiliary device of the utility model;

[0020] Figure 5 for Figure 3The figure shows a structural cross-sectional view of the first vertical split case centrifugal pump maintenance auxiliary device of the present invention. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] 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.

[0024] The utility model discloses a maintenance auxiliary device for a vertical split case centrifugal pump, which is applied to a vertical split case centrifugal pump. Figure 1 and Figure 2As shown, the vertical split case centrifugal pump includes a motor base 110, a pump body 120 and a rotor assembly 130. The motor base 110 is provided with a motor 111, and the motor 111 is connected to the rotor assembly 130 through a coupling 140. The pump body 120 includes a pump body 121 and a pump cover 122. The pump cover 122 is provided at the upper end of the pump body 121. The motor base 110 is fixed on the pump cover 122. A fixing hole (not shown) is provided in the middle of the pump cover 122. When the utility model is specifically disassembled and assembled, the motor base 110 and the motor 111 structure thereon are suspended above the pump body 120 by using an external support structure, so as to realize the connection between the pump body 120 and the motor base 110. The initial separation and the external support structure that suspends the motor seat 110 above the pump body 120 do not involve the inventive point of the present utility model and can be obtained through simple production and purchase on the market, so there is no need to elaborate on it here; here, the pump body 120 is fixed in its original position, and the motor seat 110 uses the external support structure to move vertically to the top of the pump body 120. Therefore, after the maintenance is completed, there is no need to re-find the concentricity of the motor 111 rotating shaft and the coupling 140. The concentricity of the motor 111 rotating shaft and the coupling 140 can be quickly completed by directly moving down and docking, which greatly improves the assembly efficiency and further improves the maintenance efficiency of the vertical split pump.

[0025] Specifically, moving the motor seat 110 to the external support structure directly above the pump body 120 is a known technology. In this embodiment, the external support structure includes support frames (not shown) installed on both sides above the vertical split pump to be disassembled, and the motor 111 is fixedly provided with a lifting ear 112 on the side. The lifting ear 112 is connected by an external hook assembly extending from the support frame to hang the motor seat 110 stably above the pump body 120; during the initial disassembly, it is necessary to remove the connecting screws of the pump cover 122 and the motor seat 110, thereby facilitating the separation of the motor seat 110 from the pump body 120, so as to facilitate the subsequent disassembly and assembly operations of the internal structure of the pump body 120.

[0026] like Figures 3 to 5 As shown, in one embodiment, the vertical split case centrifugal pump maintenance auxiliary device includes a guide mechanism 200 arranged on both sides above the vertical split case pump to be disassembled, and the guide mechanism 200 is fixed on a support frame and is a slide rail 210 structure.

[0027] The guide mechanism 200 is provided with a disassembly and assembly mechanism 300, which moves back and forth along the direction of the guide mechanism 200; the disassembly and assembly mechanism 300 includes a support assembly 310, and the support assembly 310 is provided with a first disassembly and assembly component 320, which is used to be connected with the pump cover 122, and the support assembly 310 moves back and forth along the direction of the guide mechanism 200, so that the pump cover 122 is separated from or connected to the pump body 121 as the support assembly 310 moves; when the pump cover 122 needs to be disassembled, the support assembly 310 moves on the guide mechanism 200 in a direction away from the pump body 121, so that the pump cover 122 is separated from the pump body 121 as the support assembly 310 moves. 21 is disengaged from the setting; when the pump cover 122 needs to be assembled, the support assembly 310 moves on the guide mechanism 200 in the direction close to the pump body 121, so that the pump cover 122 is connected to the pump body 121 as the support assembly 310 moves; in this embodiment, when the pump cover 122 is disassembled and assembled, the pump body 121 and the motor seat 110 do not move, thereby providing a good foundation for the subsequent stable docking of the rotor assembly 130 and the coupling 140, so that the vertical split-center pump maintenance auxiliary device does not need to re-calibrate the concentricity of the motor 111 and the water pump coupling 140 after the maintenance is completed, and the centrifugal pump can be quickly repaired, which greatly improves the maintenance efficiency of the vertical split-center centrifugal pump.

[0028] Furthermore, the support assembly 310 includes two parallel support plates 311 and a connecting plate 312 connecting the two support plates 311. The support plates 311 and the connecting plates 312 are arranged perpendicularly to effectively provide a supporting effect on the connecting plates 312. A roller 313 is provided on one side of the upper end of the support plate 311, and a slide groove 211 is provided on one side of the slide rail 210. The roller 313 is placed in the slide groove 211. The roller 313 moves back and forth along the direction of the slide groove 211, thereby causing the support assembly 310 to move back and forth along the direction of the slide rail 210.

[0029] like Figure 4 As shown, alternatively, the support assembly 310 includes two parallel support plates 311 and a connecting plate 312 connecting the two support plates 311. The support plates 311 and the connecting plates 312 are arranged vertically to effectively provide a supporting effect on the connecting plates 312. A slider 314 is provided on one side of the upper end of the support plate 311. The slider 314 is clamped on the slide rail 210. The slider 314 moves back and forth along the direction of the slide rail 210, thereby causing the support assembly 310 to move back and forth along the direction of the slide rail 210.

[0030] In this embodiment, the roller drive can be achieved by the internal motor 111 driving the roller 313, so that the roller 313 can move back and forth in the chute 211. The slider drive can be achieved by the external oil cylinder drive and the screw rod transmission, so that the slider 314 can move back and forth on the slide rail 210. The roller drive and the slider drive are not related to the invention of the utility model, and can be manufactured or purchased by using the prior art, which will not be described here.

[0031] The first disassembly and assembly component 320 is fixedly arranged on one side of the connecting plate 312. Specifically, the first disassembly and assembly component 320 comprises at least two fixing blocks 321, which are fixedly arranged on one side of the connecting plate 312. Threaded grooves (not shown in the figure) are formed in the fixing blocks 321, and bolt members 322 are clamped in the threaded grooves. The two threaded grooves are matched with the fixing holes of the pump cover 122, so that the bolt members 322 are clamped in the fixing holes through the threaded grooves. Then, under the connection of the bolt members 322, the pump cover 122 can move together with the fixing blocks 321. Since the fixing blocks 321 are fixed on the connecting plate 312, and the connecting plate 312 connects the two support plates 311, the pump cover 122 can move back and forth along the slide rail 210 together with the support assembly 310. Then, the pump cover 122 is disconnected or connected with the pump body 121 together with the movement of the support assembly 310, so as to facilitate the maintenance of the centrifugal pump.

[0032] In one embodiment, the support plates 311 are provided with support blocks 315, and the connecting plate 312 is fixed on the support blocks 315, so as to realize the connection effect of the connecting plate 312 and the support plates 311.

[0033] Further, support holes (not shown in the figure) are formed in the support blocks 315, and connecting holes (not shown in the figure) are formed in the connecting plate 312. The connecting holes are matched with the support holes, and the connecting plate 312 is fixed on the support blocks 315 through the screw rods 316. Specifically, the screw rods 316 are clamped in the support holes through the connecting holes of the connecting plate 312, so as to realize the connection effect of the connecting plate 312 and the support plates 311.

[0034] In one embodiment, the number of the support blocks 315 is two, and the connecting plate 312 is arranged between the two support blocks 315. The screw rods 316 are clamped in the support holes of the support blocks 315 and the connecting holes of the connecting plate 312, so as to realize the connection effect of the connecting plate 312 and the support plates 311.

[0035] In one embodiment, the support assembly 310 is further provided with a second disassembly assembly 330, and the second disassembly assembly 330 is used to be connected to the rotor assembly 130. Specifically, the rotor assembly 130 includes a rotating shaft 131 and a bearing seat 132. The rotating shaft 131 is provided with an impeller, and the second disassembly assembly 330 is used to be connected to the bearing seat 132. The rotating shaft 131 is fixed in the pump body 121 through the bearing seat 132. The support assembly 310 moves back and forth along the direction of the guide mechanism 200, so that the rotor assembly 130 is separated from or connected to the pump body 121 as the support assembly 310 moves; when the rotor assembly 130 needs to be disassembled, the support assembly 310 moves along the guide mechanism 200 in a direction away from the pump body 121, thereby making the rotor assembly 130 0 is separated from the pump body 121 as the support assembly 310 moves; when the rotor assembly 130 needs to be assembled, the support assembly 310 moves along the guide mechanism 200 in a direction close to the pump body 121, so that the rotor assembly 130 is connected to the pump body 121 as the support assembly 310 moves; in this embodiment, when the rotor assembly 130 is disassembled and assembled, the pump body 121 and the motor base 110 do not move, thereby providing a good foundation for the subsequent stable docking of the rotor assembly 130 and the coupling 140, so that the vertical split case pump maintenance auxiliary device does not need to re-calibrate the concentricity of the motor 111 and the water pump coupling 140 after maintenance is completed, and the centrifugal pump can be quickly repaired, which greatly improves the maintenance efficiency of the vertical split case centrifugal pump.

[0036] Among them, the bearing seat 132 is fixed in the pump body 121 by a bolt structure. The structure of the rotor assembly 130 itself does not involve the inventive point of the present utility model. It can adopt an existing structure or be obtained through simple purchase, so there is no need to elaborate here.

[0037] like Figure 3 and Figure 5As shown, specifically, the second disassembly assembly 330 is fixedly arranged on the other side of the connecting plate 312, and the second disassembly assembly 330 includes two support arms 331, and the two support arms 331 extend vertically from one side of the connecting plate 312. A card slot 3311 is opened at the end of the support arm 331, and a limiting arm 332 is clamped in the card slot 3311. The limiting arm 332 connects the two support arms 331, and the two support arms 331, the limiting arm 332 and the connecting plate 312 are surrounded to form a limiting opening 33 3. The limiting opening 333 is used to prevent the rotor assembly 130 from coming out during the movement and causing unnecessary risks. Specifically, a through hole 3313 is opened on the support arm 331, and a push rod 334 is clamped in the through hole 3313. The outer part of the push rod 334 is a threaded part. After passing through the through hole 3313, the push rod 334 protrudes out of the upper end surface of the support arm 331 and presses against the bearing seat 132 to lift the bearing seat 132 from the pump body 121 by a certain distance. When the cam 132 is in the closed position, the cam 132 is in the closed position, and the cam 132 is in the closed position, so that the cam 132 is not in the closed position, and the cam 132 is not in the closed position, so that the cam 132 is not in the closed position, and the cam 132 is not in the closed position, so that the cam 132 is in the closed position, and the cam 132 is ...

[0038] Furthermore, a through slot 3312 is provided at the end of the support arm 331, which passes through the support arm 331 and connects to the card slot 3311, and limiting slots (not shown) are provided at both ends of the limiting arm 332. The limiting slots are matched with the through slot 3312. The limiting arm 332 is fixed to the support arm 331 through a fixing member 335. The fixing member 335 passes through the through slot 3312 and the limiting slot, thereby achieving a stable connection effect between the limiting arm 332 and the support arm 331; in this embodiment, the fixing member is a bolt structure.

[0039] When the vertical split centrifugal pump needs to be repaired, the specific operation process of the present invention to remove the pump cover 122 from the pump body 121 through the first disassembly and assembly component 320 is as follows: the motor base 110 is suspended directly above the pump body 120 by using the external support mechanism to complete the preliminary separation of the motor base 110 and the pump body 120; the disassembly and assembly mechanism 300 is moved above the pump body 120 by using the guide mechanism 200, and the fixing block 321 and the pump cover 122 are connected together with the bolt member 322, and then, under the connection of the bolt member 322, the pump cover 122 can move with the fixing block 321, and move back and forth along the direction of the slide rail 210 as the support component 310, so that the pump cover 122 is separated from or connected to the pump body 121 as the support component 310 moves, so as to facilitate and more efficiently repair the centrifugal pump.

[0040] After the pump cover 122 is separated from the pump body 121, the front half of the pump body 121 is removed, and the rotor assembly 130 fixed in the pump body 121 is exposed. The second disassembly assembly 330 moves to the bottom of the bearing seat 132 as the support assembly 310 moves. The bottom of the bearing seat 132 is located in the cavity structure 1211 surrounded by the pump body 121, thereby facilitating the entry and exit operation of the second disassembly assembly 330 in the pump body 121; after the support arm 331 of the second disassembly assembly 330 is placed in the cavity structure 1211 below the bearing seat 132, the two ends of the limiting arm 332 are respectively fixed on the two supporting arms 331 to complete the limiting operation of the rotor assembly 130; then, after loosening the bolt structure between the fixed bearing seat 132 and the pump body 121, the second disassembly assembly 330 is removed. The rotation operation of the push rod 334 clamped on the support arm 331 causes the push rod 334 to gradually lift the bearing seat 132 upward by about 1 mm, completing the initial separation operation of the bearing seat 132 and the pump body 121; as the support assembly 310 moves along the slide rail 210 in the direction away from the pump body 121, it drives the second disassembly and assembly assembly 330 and the rotor assembly 130 in the direction away from the pump body 121, so as to facilitate more efficient maintenance of the rotor assembly 130 of the centrifugal pump; in addition, since the pump body 121 and the motor base 110 do not move when the rotor assembly 130 is disassembled and assembled, a good foundation is provided for the subsequent stable docking of the rotor assembly 130 and the coupling 140, so that the vertical split case pump maintenance auxiliary device does not need to re-calibrate the concentricity of the motor 111 and the water pump coupling 140 after the maintenance is completed, and the centrifugal pump can be repaired quickly, which greatly improves the maintenance efficiency of the vertical split case centrifugal pump.

[0041] In summary, the utility model provides a maintenance auxiliary device for a vertical split-case centrifugal pump by arranging a guide mechanism 200 above the centrifugal pump to be disassembled and assembled, and arranging a disassembly and assembly mechanism 300 that moves back and forth on the guide mechanism 200. The disassembly and assembly mechanism 300 is used to shift and repair structures on the centrifugal pump such as the pump cover 122 as needed, thereby greatly improving the maintenance efficiency of the vertical split-case centrifugal pump.

[0042] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A maintenance auxiliary device for a vertical split case centrifugal pump, characterized by: It includes a guide mechanism, which is a slide rail structure. The guide mechanism is provided with a disassembly mechanism. The disassembly mechanism includes a support component. The support component is provided with a first disassembly component. The first disassembly component is used to be connected with the pump cover.

2. A vertical split case centrifugal pump maintenance auxiliary device according to claim 1, characterized in that: The support assembly includes two parallel supporting plates and a connecting plate connecting the two supporting plates. A roller is provided on one side of the upper end of the supporting plate. A sliding groove is provided on one side of the slide rail, and the roller is placed in the sliding groove.

3. A vertical split case centrifugal pump maintenance auxiliary device according to claim 1, characterized in that: The support assembly includes two support plates arranged in parallel and a connecting plate connecting the two support plates. A slider is provided on one side of the upper end of the support plate, and the slider is clamped on the slide rail.

4. A maintenance auxiliary device for a vertical split case centrifugal pump according to claim 2 or 3, characterized in that: The first disassembly and assembly component includes at least two fixing blocks, at least two of which are fixedly arranged on one side of the connecting plate, a threaded groove is opened on the fixing block, a bolt is clamped in the threaded groove, and the two threaded grooves are used to match the fixing hole setting of the pump cover.

5. A maintenance auxiliary device for a vertical split case centrifugal pump according to claim 4, characterized in that: A support block is provided on the support plate, and the connecting plate is fixed on the support block.

6. A maintenance auxiliary device for a vertical split case centrifugal pump according to claim 5, characterized in that: A supporting hole is provided on the supporting block, and a connecting hole is provided on the connecting plate. The connecting hole matches the supporting hole setting. The connecting plate is fixed to the supporting block by a screw, and the screw passes through the connecting hole of the connecting plate and is fixed in the supporting hole.

7. A maintenance auxiliary device for a vertical split case centrifugal pump according to claim 2 or 3, characterized in that: The support assembly is also provided with a second disassembly assembly, and the second disassembly assembly is used to be connected with the rotor assembly.

8. The maintenance auxiliary device for a vertical split case centrifugal pump according to claim 7, characterized in that: The second disassembly and assembly component includes two support arms, which extend from one side of the connecting plate. A slot is provided at the end of the support arm, and a limiting arm is held in the slot. The limiting arm connects the two support arms, and the two support arms, the limiting arm and the connecting plate are surrounded to form a limiting opening.

9. A vertical split case centrifugal pump maintenance auxiliary device according to claim 8, characterized in that: The support arm is provided with a through hole, in which a push rod is clamped. The push rod passes through the through hole and protrudes out of the upper end surface of the support arm. The push rod is used to abut against the bearing seat.

10. The maintenance auxiliary device for a vertical split case centrifugal pump according to claim 8, characterized in that: A through slot is provided on the end of the support arm, which passes through the support arm and connects to the card slot. Limiting slots are provided at both ends of the limiting arm. The limiting slots are matched with the through slot. The limiting arm is fixed to the support arm through a fixing piece, and the fixing piece passes through the through slot and the limiting slot.

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