Quick lifting base device for vertical pump test bed and operation method thereof

Abstract

The application discloses a quick lifting type base device for a vertical pump test bed and an operation method thereof. The base device comprises a square frame, an installation cavity of a vertical pump to be tested is formed in the square frame, a lower platform for placing the vertical pump is arranged at the bottom of the installation cavity, an upper platform for installing a test motor is arranged at the top of the installation cavity, the upper platform is provided with a through hole which is communicated with the installation cavity and penetrates through the square frame, a guide rail device is provided with guide rails which are slidably connected to the square frame, at least a part of the guide rails can slide from the inside of the installation cavity to the outside of the installation cavity, a lifting device is provided with a movable pulley block which is slidably connected to the guide rails and can move along the guide rails, universal lifting lugs are connected to the movable pulley block, and the lifting device further comprises an elongated screw rod.

Description

Technical Field

[0001] This application belongs to the technical field of vertical pump testing equipment, and more specifically, it relates to a quick-lifting base device for a vertical pump testing bench and its operating method. Background Technology

[0002] A single-stage cantilever centrifugal pump integrated with the gearbox is called an OH6. This type of OH6 vertical pump is directly mounted on the gearbox, and the motor used in its installation typically weighs more than 1 ton, with larger motors exceeding 3 tons. The gearbox structure, which is integrated with the vertical pump and serves to increase speed, cannot directly bear such a large weight. Therefore, the motor cannot be directly mounted on the gearbox and requires a separate base. Traditional motor bases are fixed, and when performing load tests after the vertical pump is assembled, each specification or model of vertical pump requires a complete set of base devices. Assembly and disassembly are very difficult, have poor versatility, and are time-consuming and labor-intensive. Therefore, it is necessary to solve the above-mentioned technical problems. Summary of the Invention

[0003] The purpose of this application is to provide a quick-lifting base device for a vertical pump test bench, so as to solve the technical problem of difficult assembly and disassembly during vertical pump load testing in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a quick-lifting base device for a vertical pump test bench, comprising: A square frame with an internal mounting cavity for a vertical pump to be tested. The bottom of the mounting cavity is provided with a lower platform for placing the vertical pump, and the top of the mounting cavity is provided with an upper platform for mounting a test motor. The upper platform has a through hole that communicates with the mounting cavity and penetrates the square frame. A guide rail device having a guide rail slidably connected to the square frame, at least a portion of the guide rail being able to slide from the inside of the mounting cavity to the outside of the mounting cavity; The lifting device has a movable pulley block slidably connected to the guide rail and capable of moving along the guide rail, and a universal lifting lug connected to the movable pulley block. The lifting device also includes an extension screw, which is connected to the universal lifting lug and used to rotate around its own central axis.

[0005] Optionally, an adjustment block is connected to the upper platform, and the upper platform is detachably connected to the square frame via the adjustment block.

[0006] Optionally, the vertical pump test bench quick-lift base device further includes lifting lugs connected to the square frame; The lifting lugs are provided in multiple sizes and are evenly distributed along the circumference of the square frame.

[0007] Optionally, the vertical pump test bench with a quick-lift base device also includes a spare platform mounted on the square frame.

[0008] Optionally, two guide rails are arranged parallel to each other and spaced apart. The guide rail device further includes a reinforcing plate and a connecting plate, and the two guide rails are connected by the reinforcing plate and the connecting plate, respectively.

[0009] Optionally, the guide rail device further includes a plurality of lifting pulley assemblies fixed on the square frame; The guide rail is slidably connected to the square frame via a plurality of the lifting pulley sets.

[0010] Optionally, the guide rail device further includes a support pulley assembly fixed to the square frame; The supporting pulley assembly is slidably connected to the guide rail and abuts against the opposite sides of the guide rail with the lifting pulley assembly.

[0011] Optionally, the guide rail device further includes a limiting bolt threaded to the guide rail, the limiting bolt being installed at one end of the guide rail near the reinforcing plate and used to abut against the support pulley assembly.

[0012] Optionally, the guide rail device further includes a baffle, fastening bolts, and set screws; The baffle is L-shaped and at least one side wall is provided with a groove for the fastening bolt to move. The baffle is detachably connected to the square frame by a fastening bolt passing through the groove. The set screw is threaded to the baffle and is used to abut against the guide rail.

[0013] Optionally, the movable pulley assembly includes a support arranged opposite to each other and pulleys rotatably mounted on the support; The movable pulley assembly also includes a connecting bolt and a short pipe. The two brackets are connected by the connecting bolt, and the short pipe is sleeved on the connecting bolt and located between the two brackets.

[0014] This application also provides an operating method for using the above-mentioned quick-lifting base device for vertical pump test bench, including the following steps: S1. Pull the guide rail to the outermost side of the square frame so that the limiting bolt contacts the supporting pulley group; S2. Tighten the set screws on the baffle to fix the guide rail relative to the square frame; S3. Move the movable pulley group to one end where the connecting plate is located; S4. Install the adapter onto the vertical pump to be tested, rotate the extended screw and screw it into the adapter thread to raise the vertical pump to a position where the bottom of the vertical pump is higher than the lower platform; S5. Loosen the top screw and push the guide rail to move into the square frame. After the guide rail moves into the square frame, loosen the fastening bolt and let the baffle slide directly down the groove or rotate the baffle 180° so that the inner side of the baffle abuts against the outer wall of the connecting plate. Then tighten the fastening bolt. S6. Push the movable pulley block to align the bottom of the vertical pump with the installation position set on the lower platform, rotate the extended screw in the opposite direction to lower the vertical pump to the lower platform, and connect the vertical pump to the lower platform with fasteners. S7. Install the motor onto the upper platform, and select a suitable coupling to connect the output shaft of the motor to the rotating shaft of the vertical pump.

[0015] The advantages of the quick-lifting base device for the vertical pump test bench provided in this application are as follows: Compared with the prior art, the square frame in this application forms an installation cavity for the vertical pump to be tested. Through the guide rail set inside the installation cavity and movable to the outside of the installation cavity, and the lifting device installed on the guide rail, the vertical pump to be tested can be lifted from the outside of the installation cavity to the inside of the installation cavity and placed on the lower platform inside the installation cavity. The motor can be installed on the upper platform, and the motor shaft can be connected to the pump shaft of the vertical pump through the through hole set on the upper platform, thereby completing the test operation of the vertical pump. This greatly reduces the difficulty of assembling and disassembling the vertical pump, which is far superior to the prior art. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the overall structure of the quick-lifting base device for the vertical pump test bench provided in this application embodiment. Figure 1 ; Figure 2 A schematic diagram of the overall structure of the quick-lifting base device for the vertical pump test bench provided in this application embodiment. Figure 2 ; Figure 3 This is a schematic diagram of the guide rail device structure provided in the embodiments of this application; Figure 4 This is a schematic diagram of the hoisting pulley block structure provided in an embodiment of this application; Figure 5 This is a schematic diagram of the support pulley block structure provided in an embodiment of this application; Figure 6 This is a schematic diagram of the movable pulley block structure provided in an embodiment of this application; Figure 7 This is a schematic diagram of the extended screw structure provided in an embodiment of this application; Figure 8 This is a schematic diagram of the universal lifting lug structure provided in an embodiment of this application; Figure 9 This application provides a schematic diagram of the usage status of the quick-lifting base device for a vertical pump test bench. Figure 1 ; Figure 10 This application provides a schematic diagram of the usage status of the quick-lifting base device for a vertical pump test bench. Figure 2 .

[0018] The reference numerals in the figures are as follows: 100, square frame; 101, mounting cavity; 102, lower platform; 103, upper platform; 104, through hole; 105, adjusting block; 106, lifting lug; 107, spare platform; 201, guide rail; 202, reinforcing plate; 203, connecting plate; 204, lifting pulley block; 205, supporting pulley block; 206, limit bolt; 207, baffle; 2071, groove; 208, fastening bolt; 209, set screw; 241, tapered roller; 251, cylindrical roller; 301, movable pulley block; 302, universal lifting lug; 303, extended screw; 311, bracket; 312, pulley; 313, connecting bolt; 314, short pipe; 400, vertical pump; 500, conversion joint. Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] Please refer to the following: Figures 1 to 10 This application now describes a quick-lifting base device for a vertical pump test bench, as provided in an embodiment. This quick-lifting base device for a vertical pump test bench includes a square frame 100, a guide rail device, and a lifting device. Wherein: The square frame 100 forms a mounting cavity 101 for the vertical pump 400 to be tested. A lower platform 102 for placing the vertical pump 400 is provided at the bottom of the mounting cavity 101, and an upper platform 103 for mounting the test motor is provided at the top of the mounting cavity 101. The upper platform 103 has a through hole 104 communicating with the mounting cavity 101 and penetrating the square frame 100. The guide rail device has a guide rail 201 slidably connected to the square frame 100. At least a portion of the guide rail 201 can slide from the inside of the mounting cavity 101 to the outside of the mounting cavity 101. In this embodiment, the guide rail 201 can be made of channel steel commonly used in the art. The lifting device has a movable pulley group 301 slidably connected to the guide rail 201 and movable along the guide rail 201, and a universal lifting lug 302 connected to the movable pulley group 301. The lifting device also includes an extension screw 303, which is connected to the universal lifting lug 302 and used to rotate around its own central axis.

[0024] According to the structure provided in this embodiment, when it is necessary to install the vertical pump 400 and conduct a test, first pull the guide rail 201 from the inside of the mounting cavity 101 to the outside of the mounting cavity 101, then move the sliding assembly relative to the guide rail 201 and also move it to the outside of the mounting cavity 101, then install the conversion joint 500 onto the vertical pump 400 to be tested, connect the conversion joint 500 with the extension screw 303 and rotate the extension screw 303, the vertical pump 400 can be lifted by the action of the thread.

[0025] After continuously rotating the extension screw 303 until the bottom of the vertical pump 400 is higher than the lower platform 102, push the movable pulley block 301 and guide rail 201 back into the mounting cavity 101 so that the vertical pump 400 is roughly aligned with the mounting position of the lower platform 102. Then rotate the extension screw 303 in the opposite direction until the vertical pump 400 contacts the lower platform 102, thus completing the lifting and installation process. According to the structure provided in this embodiment, the upper platform 103 is also provided with bolt holes for installing the test motor. The test motor can be installed on the upper platform 103, and the motor shaft can be connected to the pump shaft of the vertical pump 400 through the through hole 104 provided on the upper platform 103 via a coupling, thereby completing the test operation of the vertical pump 400. This greatly reduces the difficulty of assembling and disassembling the vertical pump 400, which is far superior to the prior art.

[0026] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 10 An adjustment block 105 is connected to the upper platform 103, which is detachably connected to the square frame 100 via the adjustment block 105. According to the structure provided in this embodiment, the upper platform 103 can adjust the position of the through hole 104 via the adjustment block 105, allowing the test motor to better connect with the vertical pump 400 through the through hole 104, resulting in faster installation efficiency. For vertical pumps of different specifications or models, only the upper platform 103 needs to be replaced to easily adapt to the connection and installation of different motors, simplifying the testing operation of the vertical pump 400. That is, through the above-mentioned design, this vertical pump test bench with a quick-lift base device can be used for load testing of vertical pumps of different specifications and models, with a wide range of applications and good versatility. After the vertical pump 400 is fixed on the lower platform 102, both the motor and the vertical pump 400 are supported and fixed by the square frame 100, resulting in good rigidity, high strength, and test stability, which is beneficial for obtaining reliable test data.

[0027] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 10 The quick-lifting base device for the vertical pump test bench also includes lifting lugs 106 connected to the square frame 100. Multiple lifting lugs 106 are provided and evenly distributed along the circumference of the square frame 100. According to the structure provided in this embodiment, the lifting lugs 106 can be used for transporting the entire quick-lifting base device for the vertical pump test bench, which facilitates the application of this device in more scenarios.

[0028] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 10 The vertical pump test bench also includes a quick-lift base device and a spare platform 107 mounted on a square frame 100, which can hold some auxiliary equipment that is frequently used during testing, thus further improving the installation and disassembly efficiency of the vertical pump 400.

[0029] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 10 Two parallel guide rails 201 are arranged at intervals. The guide rail device also includes a reinforcing plate 202 and a connecting plate 203. The two guide rails 201 are connected by the reinforcing plate 202 and the connecting plate 203, respectively. According to the structure provided in this embodiment, by setting two guide rails 201, different lifting components can be connected to the two guide rails 201 respectively, so that two sets of lifting components can be used together to lift the vertical pump 400, resulting in better lifting effect. In addition, in this embodiment, the two guide rails 201 are connected by the reinforcing plate 202 and the connecting plate 203, which helps to further improve the stability of the guide rail device.

[0030] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 10 The guide rail device also includes multiple lifting pulley groups 204 fixed on the square frame 100, and the guide rail 201 is slidably connected to the square frame 100 through the multiple lifting pulley groups 204. According to the structure provided in this embodiment, the guide rail 201 is connected to the square frame 100 through the multiple lifting pulley groups 204, which helps to improve the installation stability of the guide rail 201 and its movement stability relative to the square frame 100. Specifically, in this embodiment, the lifting pulley group 204 can adopt a commonly used structure in the art, such as being composed of a pulley bracket 311, a hexagonal nut, a pulley shaft, a ball bearing, a tapered roller 241, a retaining ring, and a hollow elastic washer. It should be noted that in this embodiment, the tapered roller 241 is configured as a tapered structure capable of circular rotation, which facilitates better lifting of the lifting gear group onto the guide rail 201.

[0031] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 10 The guide rail device also includes a support pulley assembly 205 fixed on the square frame 100. The support pulley assembly 205 is slidably connected to the guide rail 201 and abuts against the lifting pulley assembly 204 on opposite sides of the guide rail 201. According to the structure provided in this embodiment, since the support pulley assembly 205 and the lifting pulley assembly 204 abut against the opposite sides of the guide rail 201, the guide rail 201 in the guide rail device can be effectively tilted during lifting and ensured to work on a horizontal plane, resulting in good installation effect. Specifically, in this embodiment, the support pulley assembly 205 can adopt a commonly used structure in the art, such as consisting of a pulley bracket 311, a hexagonal nut, a pulley shaft, a ball bearing, a cylindrical roller 251, a retaining ring, and an elastic washer for the hole. Unlike the hoisting pulley block 204, in this embodiment the support pulley block 205 is configured to be connected to the guide rail 201 via cylindrical rollers 251, which makes it easier for the support pulley block 205 to roll relative to the guide rail 201 and form good support.

[0032] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 10 The guide rail device also includes a limiting bolt 206 threadedly connected to the guide rail 201. The limiting bolt 206 is installed at one end of the guide rail 201 near the reinforcing plate 202 and is used to abut against the support pulley group 205. According to the structure provided in this embodiment, the limiting bolt 206 can abut against the support pulley group 205 during the movement of the guide rail 201 relative to the square frame 100, thereby preventing the guide rail 201 from completely detaching from the square frame 100.

[0033] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 10 The guide rail device also includes a baffle 207, a fastening bolt 208, and a set screw 209. The baffle 207 is L-shaped and at least one side wall is provided with a groove 2071 for the fastening bolt 208 to move. The baffle 207 is detachably connected to the square frame 100 by the fastening bolt 208 passing through the groove 2071. The set screw 209 is threadedly connected to the baffle 207 and is used to abut against the guide rail 201. According to the above structure provided in this embodiment, during the process of the guide rail 201 moving from inside the mounting cavity 101 to outside the mounting cavity 101, the position of the baffle 207 can be adjusted by the fastening bolt 208. After the guide rail 201 is fully inside the mounting cavity 101, the set screw 209 abuts against the guide rail 201, thereby restricting the guide rail 201 from moving further, facilitating the alignment of the vertical pump 400, and improving safety.

[0034] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 10 The movable pulley assembly 301 includes a support 311 disposed opposite to each other and a pulley 312 rotatably mounted on the support 311. The movable pulley assembly 301 also includes a connecting bolt 313 and a short pipe 314. The two supports 311 are connected by the connecting bolt 313, and the short pipe 314 is sleeved on the connecting bolt 313 and located between the two supports 311. According to the structure provided in this embodiment, the two supports 311 are fixed together by the connecting bolt 313, and the short pipe 314 placed in the middle can be used to fix the distance between the two supports 311, allowing the movable pulley assembly to move stably back and forth on the guide rail 201, while preventing the connecting bolt 313 from being worn by the universal lug 302, thus ensuring the strength of the connecting bolt 313.

[0035] In summary, the operating method for using the aforementioned quick-lifting base device for the vertical pump test bench includes the following steps: S1. Pull the guide rail 201 to the outermost side of the square frame 100 so that the limiting bolt 206 contacts the support pulley block 205. S2. Tighten the set screw 209 on the baffle 207 to fix the guide rail 201 relative to the square frame 100; S3. Move the movable pulley block 301 to the end where the connecting plate 203 is located; S4. Install the adapter 500 onto the vertical pump 400 to be tested, rotate the extension screw 303 and screw it into the adapter 500 thread to raise the vertical pump 400 until the bottom of the vertical pump 400 is higher than the lower platform 102. S5. Loosen the set screw 209 and push the guide rail 201 to move into the square frame 100. After the guide rail 201 moves into the square frame 100, loosen the fastening bolt 208 so that the baffle 207 slides directly along the groove 2071 or rotates the baffle 207 180° so that the inner side of the baffle 207 abuts against the outer wall of the connecting plate 203. Then tighten the fastening bolt 208. S6. Push the movable pulley block 301 to align the bottom end of the vertical pump 400 with the installation position set on the lower platform 102, rotate the extended screw 303 in the opposite direction to lower the vertical pump 400 onto the lower platform 102, and connect the vertical pump 400 to the lower platform 102 with fasteners. S7. Install the motor onto the upper platform 103, select a suitable coupling to connect the output shaft of the motor to the rotating shaft of the vertical pump 400, and the installation and connection of the vertical pump 400 in the test state will be completed.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A quick-lifting base device for a vertical pump test bench, characterized in that, include: A square frame (100) has an internal mounting cavity (101) for a vertical pump (400) to be tested. The bottom of the mounting cavity (101) is provided with a lower platform (102) for placing the vertical pump (400), and the top of the mounting cavity (101) is provided with an upper platform (103) for mounting a test motor. The upper platform (103) has a through hole (104) that communicates with the mounting cavity (101) and passes through the square frame (100). The guide rail device has a guide rail (201) slidably connected to the square frame (100), at least a portion of the guide rail (201) being slidable from the inside of the mounting cavity (101) to the outside of the mounting cavity (101); The lifting device has a movable pulley block (301) slidably connected to the guide rail (201) and capable of moving along the guide rail (201) and a universal lug (302) connected to the movable pulley block (301). The lifting device also includes an extension screw (303) connected to the universal lug (302) and used to rotate about its own central axis.

2. The quick-lifting base device for a vertical pump test bench as described in claim 1, characterized in that: An adjustment block (105) is connected to the upper platform (103), and the upper platform (103) is detachably connected to the square frame (100) through the adjustment block (105).

3. The quick-lifting base device for a vertical pump test bench as described in claim 2, characterized in that: The vertical pump test bench quick-lifting base device also includes lifting lugs (106) connected to the square frame (100). The lifting lugs (106) are provided in multiple sizes and are evenly distributed along the circumference of the square frame (100).

4. The quick-lifting base device for a vertical pump test bench as described in claim 3, characterized in that: The vertical pump test bench quick-lift base device also includes a spare platform (107) installed on the square frame (100).

5. The quick-lifting base device for a vertical pump test bench as described in claim 4, characterized in that: The guide rails (201) are arranged in parallel and spaced apart. The guide rail device also includes a reinforcing plate (202) and a connecting plate (203). The two guide rails (201) are connected by the reinforcing plate (202) and the connecting plate (203) respectively.

6. The quick-lifting base device for a vertical pump test bench as described in claim 5, characterized in that: The guide rail device also includes multiple hoisting pulley groups (204) and support pulley groups (205) fixed on the square frame (100). The guide rail (201) is slidably connected to the square frame (100) via a plurality of the lifting pulley groups (204). The support pulley assembly (205) is slidably connected to the guide rail (201) and abuts against the opposite sides of the guide rail (201) with the hoisting pulley assembly (204).

7. The quick-lifting base device for a vertical pump test bench as described in claim 6, characterized in that: The guide rail device further includes a limiting bolt (206), a baffle (207), a fastening bolt (208), and a set screw (209) threadedly connected to the guide rail (201). The limiting bolt (206) is installed on one end of the guide rail (201) near the reinforcing plate (202) and is used to abut against the support pulley group (205). The baffle (207) is "L" shaped and at least one side wall is provided with a groove (2071) for the fastening bolt (208) to move. The baffle (207) is detachably connected to the square frame (100) by the fastening bolt (208) passing through the groove (2071). The set screw (209) is threadedly connected to the baffle (207) and is used to abut against the guide rail (201).

8. The quick-lifting base device for a vertical pump test bench as described in claim 7, characterized in that: The movable pulley assembly (301) includes a support (311) disposed opposite to each other and pulleys (312) rotatably mounted on the support (311). The movable pulley assembly (301) also includes a connecting bolt (313) and a short pipe (314). The two supports (311) are connected by the connecting bolt (313), and the short pipe (314) is sleeved on the connecting bolt (313) and located between the two supports (311).

9. A method for operating the quick-lifting base device for a vertical pump test bench as described in claim 8, characterized in that, Includes the following steps: S1. Pull the guide rail (201) to the outermost side of the square frame (100) so that the limiting bolt (206) contacts the support pulley group (205); S2. Tighten the set screw (209) on the baffle (207) to fix the guide rail (201) relative to the square frame (100); S3. Move the movable pulley block (301) to the end where the connecting plate (203) is located; S4. Install the adapter (500) onto the vertical pump (400) to be tested, rotate the extension screw (303) and screw it into the adapter (500) to raise the vertical pump (400) to a position where the bottom of the vertical pump (400) is higher than the lower platform (102). S5. Loosen the set screw (209) and push the guide rail (201) to move into the square frame (100). After the guide rail (201) moves into the square frame (100), loosen the fastening bolt (208) so that the baffle (207) slides directly down the groove (2071) or the baffle (207) is rotated 180° so that the inner side of the baffle (207) abuts against the outer wall of the connecting plate (203). Then tighten the fastening bolt (208). S6. Push the movable pulley block (301) to align the bottom end of the vertical pump (400) with the installation position set on the lower platform (102), rotate the extended screw (303) in the opposite direction to lower the vertical pump (400) onto the lower platform (102), and connect the vertical pump (400) to the lower platform (102) with fasteners. S7. Install the motor onto the upper platform (103) and select a suitable coupling to drive the output shaft of the motor to the rotating shaft of the vertical pump (400).

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