Auxiliary equipment for disassembling and assembling centrifugal pump

Abstract

The invention discloses disassembly and assembly auxiliary equipment for a centrifugal pump. Two grooves are formed in the bearing base, a buffer groove is formed in the bottom of the first groove, and a buffer supporting mechanism is installed in the buffer groove; movable grooves are formed in the two sides of the top of the first groove, the second groove is a driving groove, clamping adjusting mechanisms are installed in the movable grooves and the driving groove, and the clamping adjusting mechanisms are connected with the two limiting plates; the mounting plate is mounted on the buffer supporting mechanism, the centrifugal pump body is placed on the mounting plate and located between the two limiting plates, and the centrifugal pump body is clamped by the limiting plates. According to the invention, the mounting plate can be conveniently fixed, and the time required for disassembly and assembly is reduced; the loss of the movable block and the two-way screw rod caused by the vibration of the pump shaft can be effectively reduced, and the sliding of the two-way screw rod is avoided; vibration caused when the centrifugal pump impeller is disassembled and assembled can be relieved, concentricity of the centrifugal pump impeller is guaranteed, the centrifugal pump impeller can make accurate contact with the middle section of the pump, disassembling and assembling difficulty is lowered, disassembling and assembling efficiency is improved, rapid, accurate and safe disassembling and assembling are facilitated, and maintenance time is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of centrifugal pump disassembly and assembly, and more specifically, to a multi-stage centrifugal pump disassembly and assembly auxiliary tool. Background Art

[0002] A centrifugal pump is a rotating machine that is a general device for conveying fluid media. It is widely used in the fields of petroleum, chemical industry, water conservancy, etc.

[0003] A multi-stage centrifugal pump has two or more impellers connected in series. During the disassembly and assembly process of the multi-stage centrifugal pump, once swinging or offset occurs, it will affect the concentricity of the multi-stage centrifugal pump. Therefore, there are higher requirements for the accuracy of the disassembly and assembly angle, height, and component matching position.

[0004] At present, manual adjustment is mostly used, which consumes time and manpower. At the same time, it is easy to cause damage to the surface of the bearing cap and the pump shaft thread, which seriously affects the stable operation of the pump and the quality of disassembly and assembly.

[0005] Therefore, a multi-stage centrifugal pump disassembly and assembly auxiliary tool is needed to solve the above problems. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a centrifugal pump disassembly and assembly auxiliary device which is easy to disassemble and assemble, meets the precision requirements and has a buffering effect.

[0007] The present invention is a centrifugal pump auxiliary disassembly and assembly device, which aims to disassemble and assemble the centrifugal pump more conveniently and improve the accuracy of the disassembly and assembly process (coarse and fine adjustment in the horizontal and vertical directions relative to the centrifugal pump body), but not to disassemble and assemble the centrifugal pump body.

[0008] The present invention proposes a centrifugal pump disassembly and assembly auxiliary device, the solution specifically includes:

[0009] The present invention includes a bearing base, a clamping adjustment mechanism, a buffer support mechanism, a limit plate and a mounting plate. The bearing base is provided with a first groove and a second groove. The bottom of the first groove serves as a buffer groove and the buffer support mechanism is mounted in the buffer groove. The two sides of the top of the first groove serve as movable grooves. The second groove is located on the side of the first groove and serves as a driving groove. The clamping adjustment mechanism is mounted in the movable groove and the driving groove, and the clamping adjustment mechanism is connected to the two limit plates. The mounting plate is mounted on the buffer support mechanism, the centrifugal pump body is placed on the mounting plate and is located between the two limit plates, and the centrifugal pump body is clamped by the limit plates.

[0010] The buffer support mechanism includes a buffer plate and a buffer limit assembly. A plurality of buffer limit assemblies are arranged at the bottom of the buffer groove. The buffer plate is horizontally placed above the plurality of buffer limit assemblies. The mounting plate is fixed to the middle of the upper surface of the buffer plate. Each buffer limit assembly includes a limit column and a buffer spring. The buffer spring is sleeved outside the limit column. The lower end of the buffer spring is connected to the bottom surface of the buffer groove, and the upper end is connected to the bottom surface of the buffer plate.

[0011] The clamping adjustment mechanism includes a rotating shaft, a rotating handle, a bevel gear and a movable adjustment component; a horizontal rotating shaft is rotatably installed in the driving groove, and bevel gears 1 fixedly connected to the rotating shaft are symmetrically arranged at both ends of the rotating shaft in the driving groove, and one end of the rotating shaft passes through the side wall of the above-mentioned driving groove and is fixedly connected to the rotating handle outside the side wall; a movable adjustment component is arranged in each movable groove, and two bevel gears 1 are respectively connected to the movable adjustment components in the movable grooves on both sides, and the two movable adjustment components are connected to the two ends of the two limit plates.

[0012] Each of the movable adjustment components includes a sliding rod, a bidirectional screw rod, a bevel gear 2 and a sliding module; the horizontal sliding rod is arranged at the inner edge of the movable groove, and the two ends of the sliding rod are fixed between the two side groove walls of the first groove, and the sliding rod and the rotating shaft are arranged perpendicular to each other; a bidirectional screw rod is rotatably installed in the movable groove and arranged horizontally and parallel to the sliding rod, one end of the bidirectional screw rod extends into the driving groove and is coaxially fixed with a bevel gear 2, and the bevel gear 2 and the bevel gear 1 are meshed and connected by a bevel gear transmission pair; a sliding module is mounted on the two threaded sections of the bidirectional screw rod, and the sliding module includes a movable block, a connecting spring and a slider, one end of the movable block is mounted on the bidirectional screw rod through a thread, and the other end is connected to the slider through a connecting spring, and the slider and the end of the limit plate are fixedly connected.

[0013] The two limit plates are arranged across the sliding rods in the two movable adjustment components, the length direction of each limit plate is arranged parallel to the rotating shaft of the clamping adjustment mechanism, and the sliders of the sliding module at the same end of the bidirectional screw rods in the two movable adjustment components are respectively connected to the two ends of the same limit plate.

[0014] Before the centrifugal pump is disassembled and assembled, the two limit plates are located on both sides above the mounting plate; when the centrifugal pump is disassembled and assembled, the two limit plates are located directly above the mounting plate.

[0015] It also includes a positioning fine-adjustment component, which includes a connecting block and a limiting guide. The connecting block is fixedly mounted on the upper surface of the mounting plate, and the connecting block is used to be embedded in the hole groove at the bottom of the centrifugal pump body; the side and bottom of the limiting plate are both provided with limiting guides.

[0016] A horizontally arranged limiting guide is provided on the side of the limiting plate. The horizontally arranged limiting guide passes horizontally from the outside to the center of the limiting plate and then contacts and connects to the side of the centrifugal pump body.

[0017] A vertically arranged limiting guide is provided at the bottom of the limiting plate. The vertically arranged limiting guide is vertically installed on the limiting plate, and the bottom surface of the vertically arranged limiting guide is used for contacting and connecting with the upper surface of the mounting plate.

[0018] The limiting guide member includes a vertical stud, a threaded groove, a ball, a swivel column and a rectangular plate; the swivel column is fixedly installed on the upper and lower sides of the limiting plate through the notch of the limiting plate by a locking nut, and the upper and lower parts of the swivel column passing through the notch of the limiting plate are provided with spherical grooves near the inner end surface of the limiting plate, and the spherical grooves are inlaid with balls so that the swivel column and the limiting plate are connected by ball rolling; a vertical threaded groove is provided at the lower end of the swivel column, and a vertical stud is installed in the threaded groove by thread, and the vertical stud includes a screw and a rectangular plate fixedly arranged at the lower end of the screw, the upper end of the screw is connected to the threaded groove by thread, and a gasket directly in contact with the top of the mounting plate is provided on the bottom surface of the rectangular plate.

[0019] The present invention has the following beneficial effects:

[0020] When using the centrifugal pump auxiliary disassembly and assembly tool of this embodiment, by providing a bidirectional screw rod and a limit plate, it is convenient to fix the installation plate and reduce the time required for disassembly and assembly;

[0021] By setting the slider and the connecting spring, the loss of the movable block and the bidirectional screw caused by the vibration of the pump shaft can be effectively reduced, and the slipping of the bidirectional screw can be avoided;

[0022] By providing a buffer plate and a buffer spring, the vibration caused by the disassembly and assembly of the centrifugal pump impeller can be effectively reduced. During the disassembly and assembly of the multi-stage centrifugal pump, its concentricity is guaranteed so that the limit plate can accurately contact the middle section of the pump, reducing the difficulty of disassembly and assembly, improving the disassembly and assembly efficiency, and helping to achieve fast, accurate and safe disassembly and assembly, shortening the maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of a multi-stage centrifugal pump used in an embodiment of the present invention;

[0025] Figure 2 It is a side cross-sectional structural diagram of a centrifugal pump disassembly and assembly tool in an embodiment of the present invention;

[0026] Figure 3 It is a top view and cross-sectional structure diagram of a centrifugal pump disassembly and assembly tool in an embodiment of the present invention;

[0027] Figure 4 It is a structural cross-sectional view of the limiting guide member at the bottom of the limiting plate in an embodiment of the present invention.

[0028] Among them, 1. bearing base, 2. clamping adjustment mechanism, 3. buffer support mechanism, 4. buffer groove, 5. driving groove, 6. movable groove, 7. limit plate, 8. rotating shaft, 9. rotating handle, 10. bevel gear one, 11. sliding rod, 12. bidirectional screw, 13. bevel gear two, 14. movable block, 15. connecting spring, 16. slider, 17. limit column, 18. buffer plate, 19. mounting plate, 20. buffer spring, 21. connecting block, 22. centrifugal pump body, 23. vertical stud, 24. threaded groove, 25. ball, 26. rotary column, 27. rectangular plate, 28. limit guide. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. The present invention is further described in detail below in conjunction with the accompanying drawings.

[0031] like Figure 1 As shown, the device includes a bearing base 1, a clamping adjustment mechanism 2, a buffer support mechanism 3, a limit plate 7 and a mounting plate 19. Figure 2As shown, the clamping adjustment mechanism 2 and the buffer support mechanism 3 are both arranged on the bearing base 1, and a first groove and a second groove are opened in the middle of the bearing base 1. The bottom of the first groove serves as a buffer groove 4 and the buffer support mechanism 3 is installed in the buffer groove 4. The buffer support mechanism 3 is used for the upper and lower elastic adjustment and support of the centrifugal pump body 22; the two sides of the top of the first groove serve as movable grooves 6, and the second groove is located on the side of the first groove and serves as a driving groove 5. The clamping adjustment mechanism 2 is installed in the movable groove 6 and the driving groove 5, and the clamping adjustment mechanism 2 is connected to the two limit plates 7; the clamping adjustment mechanism 2 is used to drive the two limit plates 7 to move closer to or away from each other.

[0032] The mounting plate 19 is mounted on the buffer support mechanism 3 , the centrifugal pump body 22 is placed on the mounting plate 19 and is located between the two limit plates 7 , and the centrifugal pump body 22 is clamped by the limit plates 7 .

[0033] like Figure 2 As shown, the buffer support mechanism 3 includes a buffer plate 18 and a buffer stopper assembly. A plurality of buffer stopper assemblies are arranged at the bottom of the buffer groove 4. The buffer plate 18 is horizontally placed on the plurality of buffer stopper assemblies. The mounting plate 19 is fixed to the middle of the upper surface of the buffer plate 18. The buffer plate 18 is also arranged in the buffer groove so as to slide up and down. Each buffer stopper assembly includes a stopper column 17 and a buffer spring 20. The buffer spring 20 is sleeved outside the stopper column 17. The lower end of the buffer spring 20 is connected to the bottom surface of the buffer groove 4, and the upper end is connected to the bottom surface of the buffer plate 18.

[0034] like Figure 3 As shown, the clamping adjustment mechanism 2 includes a rotating shaft 8, a rotating handle 9, a bevel gear 10 and a movable adjustment component; a horizontal rotating shaft 8 is rotatably installed in the driving groove 5, and bevel gears 10 fixedly connected to the rotating shaft 8 are symmetrically arranged at both ends of the rotating shaft 8 in the driving groove 5. One end of the rotating shaft 8 passes through the side wall of the above-mentioned driving groove 5 and is fixedly connected to the rotating handle 9 outside the side wall; a movable adjustment component is arranged in each movable groove 6, and two bevel gears 10 are respectively connected to the movable adjustment components in the movable grooves 6 on both sides, and the two movable adjustment components are connected to the two ends of the two limit plates 7.

[0035] Each movable adjustment assembly includes a sliding rod 11, a bidirectional screw rod 12, a bevel gear 13 and a sliding module; the horizontal sliding rod 11 is arranged at the inner edge of the movable groove 6, and the two ends of the sliding rod 11 are fixed between the two side groove walls of the first groove, and the sliding rod 11 and the rotating shaft 8 are arranged perpendicularly; a bidirectional screw rod 12 is rotatably installed in the movable groove 6 and arranged horizontally and parallel to the sliding rod 11, one end of the bidirectional screw rod 12 extends into the driving groove 5 and is coaxially fixed with a bevel gear 13, and the bevel gear 13 and the bevel gear 10 are meshed and connected by a bevel gear transmission pair;

[0036] The bidirectional screw rod 12 has two threaded sections with opposite thread rotation directions. Both threaded sections of the bidirectional screw rod 12 are equipped with a sliding module for connecting to the end of the limit plate 7. The sliding module includes a movable block 14, a connecting spring 15 and a slider 16. One end of the movable block 14 is mounted on the bidirectional screw rod 12 through a thread, and the other end is connected to the slider 16 through the connecting spring 15. The side surface of the other end of the movable block 14 contacts the side surface of the sliding rod 11 so that the movable block 14 is limited by the sliding rod 11 and can only move along the sliding rod 11. The slider 16 is fixedly connected to the end of the limit plate 7.

[0037] The two limit plates 7 are arranged across the sliding rods 11 in the two movable adjustment components. The length direction of each limit plate 7 is arranged parallel to the rotating shaft 8 of the clamping adjustment mechanism 2. The sliders 16 of the sliding module at the same end of the bidirectional screw rods 12 in the two movable adjustment components are respectively fixedly connected to the two ends of the same limit plate 7.

[0038] The mounting plate 19 is located below the limit plate 7 . Before the centrifugal pump is disassembled, the two limit plates 7 are located on both sides above the mounting plate 19 . When the centrifugal pump is disassembled, the two limit plates 7 are located directly above the mounting plate 19 .

[0039] The specific implementation also includes a positioning fine-adjustment component, which includes a connecting block 21 and a limiting guide 28. The connecting block 21 is fixedly mounted on the upper surface of the mounting plate 19, and the connecting block 21 is used to be embedded in the hole groove at the bottom of the centrifugal pump body 22; the side and bottom of the limiting plate 7 are both provided with limiting guides 28.

[0040] In a specific implementation, a plurality of connection blocks 21 are provided, and a centrifugal pump body 22 is commonly provided on the plurality of connection blocks 21 .

[0041] like Figure 3 As shown, a horizontally arranged limit guide 28 is provided on the side of the limit plate 7 as a horizontal stud. The horizontally arranged limit guide 28 is connected to the side of the centrifugal pump body 22 from the limit plate 7. Specifically, it can be horizontally penetrated from the outside to the center through the limit plate 7 and then connected to the side of the centrifugal pump body 22. It can also be other forms.

[0042] like Figure 4 As shown, a vertically arranged limiting guide 28 is provided at the bottom of the limiting plate 7 as a vertical stud. The vertically arranged limiting guide 28 is vertically installed on the limiting plate 7, and the bottom surface of the vertically arranged limiting guide 28 is used to contact and connect with the upper surface of the mounting plate 19.

[0043] The limiting guide member 28 is shown in Figure 4, including a stud 23, a threaded groove 24, a ball 25, a rotating column 26 and a rectangular plate 27; the upper and lower parts of the rotating column 26 of the entire limiting guide member 28 are fixedly installed at the upper and lower sides of the limiting plate 7 through the notch of the limiting plate 7 with a locking nut, and the rotating column 26 passes through the upper and lower parts of the notch of the limiting plate 7 and is provided with a spherical groove near the inner end surface of the limiting plate 7, and the ball 25 is inlaid on the spherical groove so that the rotating column 26 and the limiting plate 7 are connected by the ball 25 through rolling, and the designed ball 25 plays a lubricating role, making the rotating column 26 smoother; a vertical threaded groove 24 is provided at the bottom end of the lower part of the rotating column 26, and a stud 23 is installed in the threaded groove 24 through a thread, and the stud 23 includes a screw and a rectangular plate 27 fixedly arranged at the lower end of the screw, and the upper end of the screw is connected in the threaded groove 24 through a thread, and the bottom surface of the rectangular plate 27 is provided with a gasket that is in direct contact with the top of the mounting plate 19.

[0044] When the vertical height of the centrifugal pump needs to be finely adjusted, it is only necessary to screw the screw 26 and the screw groove 24 and the stud 23 at the bottom of the screw 26 to drive the rectangular plate 27 at the bottom of the stud 23 to move downward so that the bottom of the stud 23 is in contact with the top of the mounting plate 19. In this way, the four limiting guides are finely adjusted to different degrees to ensure that the height of the centrifugal pump body is on the same horizontal line and the concentricity of the installation is guaranteed.

[0045] In the specific implementation, the vertical limit guide is horizontally arranged on the inner side of the limit plate 7 close to the centrifugal pump body 22 to form a horizontally arranged limit guide 28, and then the horizontal limit plate is finely adjusted to achieve the effect of tightening the centrifugal pump body and ensure that the disassembly and assembly position of the centrifugal pump body is reasonable and reliable.

[0046] The horizontal studs are used to adjust the vertical height of the limiting plate 7 , and the vertical studs are used to adjust the lateral height of the limiting plate 7 . The limiting guide 28 can increase the flexibility and accuracy of the horizontally arranged limiting guide 28 .

[0047] When using the centrifugal pump disassembly and assembly auxiliary equipment of this embodiment, first connect the centrifugal pump body 22 to the mounting plate 19, so that the bearing base 1 and the pump body are fixed by the connecting block 21 of the positioning fine-adjustment component. In addition, the clamping adjustment mechanism 2 can also limit and guide the movement of the pump body during the disassembly process to prevent it from swinging, and the buffer support mechanism 3 is used to ensure that it is concentric with the pump assembly. After the clamping adjustment mechanism 2 fixes the pump body, the pump can be disassembled and assembled through the buffer support mechanism 3, and the operation is simple.

[0048] After the centrifugal pump body is placed on the mounting 19, turning the rotating handle drives a pair of bevel gears to rotate and also drives the bidirectional screw 12 to rotate. The other end of the bidirectional screw 12 is fixedly connected to one end of the movable block 14, thereby driving the movable block to move. The other end of the movable block 14 is fixedly connected to one end of the connecting spring 15. When the movable block 14 moves to the middle position of the bearing base 1, it squeezes the connecting spring 15, causing the connecting spring 15 to undergo elastic deformation, thereby moving horizontally. The other end of the connecting spring 15 is fixedly connected to one end of the slider 16. When the connecting spring 15 moves horizontally, it will push the slider 16 to move horizontally. The other end of the slider 16 is fixedly connected to one end of the limit plate 7. When the slider 16 moves horizontally, it will drive the limit plate 7 to move horizontally, and finally clamp the centrifugal pump body to play a role in fixed limiting.

[0049] The specific implementation process of the present invention is as follows:

[0050] During specific use, the mounting plate 19 is fixedly placed on the buffer plate 18, with both ends of the buffer plate 18 close to the inner wall of the first groove of the bearing base 1, and the buffer plate 18 will elastically slide up and down with the buffer support mechanism 3. When the centrifugal pump body 22 is installed, the gravity causes the centrifugal pump body 22 to move downward and exerts downward pressure on the centrifugal pump body 22. At this time, the centrifugal pump body 22 drives the connecting block 21 and the mounting plate 19 to move downward, and the mounting plate 19 drives the buffer plate 18 to move downward and compresses the buffer spring 20.

[0051] At this time, the rotating handle 9 is then operated to rotate, and the rotating shaft 8 is driven to rotate at the same time. The rotating shaft 8 is coaxially installed with the bevel gear 10. The rotation of the rotating shaft 8 can drive the bevel gear 10 to rotate. Since the bevel gear 10 is meshed with one end of the bevel gear 2 13 of the mobile adjustment component, the rotation of the bevel gear 10 simultaneously drives the bevel gears 2 13 of the two mobile adjustment components to rotate. The other end of the bevel gear 2 13 is fixedly connected to one end of the bidirectional screw 12. When the bevel gear 2 13 rotates, it also drives the bidirectional screw 12 to rotate. The other end of the bidirectional screw 12 is fixedly connected to one end of the movable block 14. The movable block 14 is limited by the sliding rod 11. The bidirectional screw 12 drives the movable blocks 14 of the two mobile adjustment components to move to the middle position of the bearing base 1.

[0052] Since the other end of the movable block 14 is fixedly connected to one end of the connecting spring 15, when the movable block 14 moves to the middle position of the bearing base 1 and squeezes the connecting spring 15, the connecting spring 15 is elastically deformed, thereby moving horizontally. The other end of the connecting spring 15 is fixedly connected to one end of the slider 16. When the connecting spring 15 moves horizontally, it will push the slider 16 to move horizontally. The other end of the slider 16 is fixedly connected to one end of the limit plate 7. When the slider 16 moves horizontally, it will drive the limit plate 7 to move horizontally, thereby driving the two limit plates 7 to move to the middle position of the bearing base 1, and clamping the centrifugal pump body 22 between the two limit plates 7.

[0053] When the two limit plates 7 are mutually considered to reach the top of the mounting plate 19, the pressure on the centrifugal pump body 22 is released, and the upper end of the buffer spring 20 is fixedly connected to the lower end of the buffer plate 18. The buffer spring 20 pushes the buffer plate 18 to move vertically upward, and then drives the mounting plate 19 to move vertically upward until the mounting plate 19 stops moving after contacting the limit plate 7. The mounting plate 19 is sandwiched and fixed by the buffer plate 18 and the limit plate 7. This ensures the stable support of the axial position of the disassembly and assembly auxiliary equipment during operation and ensures the concentricity of the radial position installation.

[0054] The above-mentioned roughly position adjustment and clamping of the limiting plate 7 are performed.

[0055] In the specific implementation, the height and horizontal position of the limit plate 7, which is the limit guide, are further adjusted more finely through the horizontal studs and the vertical studs to better assist the disassembly and assembly of the centrifugal pump.

[0056] The horizontal stud is driven to rotate, and the length of the horizontal stud passing through the limit plate 7 is adjusted to contact the side of the centrifugal pump body 22. Since the position of the movable block 14 remains unchanged at this time, and the slider 16 and the limit plate 7 are elastically connected to the movable block 14 through the connecting spring 15, the limit plate 7 is driven to horizontally move away from or approach the centrifugal pump body 22, thereby adjusting the horizontal distance of the limit plate 7 relative to the centrifugal pump body 22; -

[0057] In addition, the vertical stud is driven to rotate and the distance between the lower end of the vertical stud and the bottom surface of the limit plate 7 is adjusted. When the centrifugal pump body 22 is lighter, the buffer support mechanism 3 drives the buffer plate 18 and the mounting plate 19 to move upward until the mounting plate 19 is close to the limit plate 7. The mounting plate 19 can only contact the vertical stud first, thereby controlling the distance between the limit plate 7 and the mounting plate 19, and adjusting the height of the centrifugal pump body 22 of the limit plate 7.

[0058] This is suitable for operation in a relatively small space, and can quickly adjust the limiting guide to a specified height, and also allows the limiting plate 7 to reciprocate along the horizontal adjustment end to adjust the horizontal position of the limiting plate 7.

[0059] From the above description and practice, it can be seen that the centrifugal pump disassembly and assembly auxiliary equipment provided by the present application has the following advantages compared with the prior art: by using the above-mentioned centrifugal pump disassembly and assembly auxiliary equipment, the limit plate is adjusted laterally and longitudinally through the adjustment component and the buffer support mechanism, providing support, limitation and guiding functions for the disassembly and assembly of the centrifugal pump, and ensuring its concentricity during the disassembly and assembly of the multi-stage centrifugal pump. The use of centrifugal pump disassembly and assembly auxiliary equipment can achieve precise docking between the main body and the equipment, reduce the difficulty of disassembly and assembly, improve the efficiency of disassembly and assembly, and help to achieve fast, accurate and safe disassembly and assembly, thereby greatly shortening the maintenance time.

[0060] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A centrifugal pump disassembly and assembly auxiliary device, characterized in that: The invention comprises a bearing base (1), a clamping adjustment mechanism (2), a buffer support mechanism (3), a limit plate (7) and a mounting plate (19); the bearing base (1) is provided with a first groove and a second groove; the bottom of the first groove serves as a buffer groove (4) and the buffer support mechanism (3) is mounted in the buffer groove (4); the two sides of the top of the first groove serve as movable grooves (6); the second groove is located on the side of the first groove and serves as a driving groove (5); the clamping adjustment mechanism (2) is mounted in the movable groove (6) and the driving groove (5); the clamping adjustment mechanism (2) is connected to the two limit plates (7); the mounting plate (19) is mounted on the buffer support mechanism (3); the centrifugal pump body (22) is placed on the mounting plate (19) and is located between the two limit plates (7); the centrifugal pump body (22) is clamped by the limit plates (7).

2. The centrifugal pump disassembly and assembly auxiliary device according to claim 1, characterized in that: The buffer support mechanism (3) comprises a buffer plate (18) and a buffer limit assembly. A plurality of buffer limit assemblies are arranged at the bottom of the buffer groove (4). The buffer plate (18) is horizontally placed above the plurality of buffer limit assemblies. The mounting plate (19) is fixed to the middle of the upper surface of the buffer plate (18). Each buffer limit assembly comprises a limit column (17) and a buffer spring (20). The buffer spring (20) is sleeved outside the limit column (17). The lower end of the buffer spring (20) is connected to the bottom surface of the buffer groove (4), and the upper end is connected to the bottom surface of the buffer plate (18).

3. The centrifugal pump disassembly and assembly auxiliary device according to claim 1, characterized in that: The clamping adjustment mechanism (2) comprises a rotating shaft (8), a rotating handle (9), a bevel gear (10) and a movable adjustment component; a horizontal rotating shaft (8) is rotatably installed in the driving groove (5), and bevel gears (10) fixedly connected to the rotating shaft (8) are symmetrically arranged at both ends of the rotating shaft (8) in the driving groove (5); one end of the rotating shaft (8) passes through the side wall of the driving groove (5) and is fixedly connected to the rotating handle (9) outside the side wall; a movable adjustment component is arranged in each movable groove (6), and two bevel gears (10) are respectively connected to the movable adjustment components in the movable grooves (6) on both sides, and the two movable adjustment components are connected to the two ends of the two limit plates (7).

4. The centrifugal pump disassembly and assembly auxiliary device according to claim 3, characterized in that: Each of the movable adjustment components comprises a sliding rod (11), a bidirectional screw rod (12), a second bevel gear (13) and a sliding module; the horizontal sliding rod (11) is arranged at the inner edge of the movable groove (6), the two ends of the sliding rod (11) are fixed between the two side groove walls of the first groove, and the sliding rod (11) and the rotating shaft (8) are arranged perpendicularly; a bidirectional screw rod (12) is rotatably installed in the movable groove (6) and is arranged horizontally and parallel to the sliding rod (11), one end of the bidirectional screw rod (12) extends into the driving groove (5) and is arranged parallel to the first groove (8). The shaft fixing sleeve is provided with a bevel gear 2 (13), and the bevel gear 2 (13) and the bevel gear 1 (10) are meshed and connected by a bevel gear transmission pair; a sliding module is sleeved on both threaded sections of the bidirectional screw rod (12), and the sliding module comprises a movable block (14), a connecting spring (15) and a sliding block (16); one end of the movable block (14) is sleeved on the bidirectional screw rod (12) through a thread, and the other end is connected to the sliding block (16) through the connecting spring (15); the sliding block (16) and the end of the limiting plate (7) are fixedly connected.

5. The centrifugal pump disassembly and assembly auxiliary device according to claim 4, characterized in that: The two limit plates (7) are arranged across the sliding rods (11) in the two movable adjustment components, and the length direction of each limit plate (7) is arranged parallel to the rotating shaft (8) of the clamping adjustment mechanism (2). The sliders (16) of the sliding module at the same end of the bidirectional screw rods (12) in the two movable adjustment components are respectively connected to the two ends of the same limit plate (7).

6. The centrifugal pump disassembly and assembly auxiliary device according to claim 1, characterized in that: Before the centrifugal pump is disassembled or assembled, the two limit plates (7) are located on both sides above the mounting plate (19); when the centrifugal pump is disassembled or assembled, the two limit plates (7) are located directly above the mounting plate (19).

7. The centrifugal pump disassembly and assembly auxiliary device according to claim 1, characterized in that: The invention also comprises a positioning fine adjustment component, the positioning fine adjustment component comprises a connecting block (21) and a limiting guide (28), the connecting block (21) is fixedly mounted on the upper surface of the mounting plate (19), the connecting block (21) is used to be embedded in the hole groove at the bottom of the centrifugal pump body (22); the limiting guide (28) is arranged on the side and bottom of the limiting plate (7).

8. The centrifugal pump disassembly and assembly auxiliary device according to claim 1, characterized in that: A horizontally arranged limiting guide member (28) is provided on the side of the limiting plate (7), and the horizontally arranged limiting guide member (28) contacts and connects to the side of the centrifugal pump body (22) after passing through the limiting plate (7).

9. The centrifugal pump disassembly and assembly auxiliary device according to claim 1, characterized in that: A vertically arranged limiting guide member (28) is provided at the bottom of the limiting plate (7). The vertically arranged limiting guide member (28) is vertically mounted on the limiting plate (7), and the bottom surface of the vertically arranged limiting guide member (28) is used to contact and connect with the upper surface of the mounting plate (19).

10. The centrifugal pump disassembly and assembly auxiliary device according to claim 9, characterized in that: The position limiting guide member (28) comprises a stud (23), a thread groove (24), a ball (25), a rotating column (26) and a rectangular plate (27); the rotating column (26) is fixedly mounted at the upper and lower sides of the position limiting plate (7) through the notch of the position limiting plate (7) by means of a locking nut; the rotating column (26) passes through the notch of the position limiting plate (7) and has a spherical groove formed at the upper and lower parts of the inner end surface close to the position limiting plate (7); the ball (25) is embedded in the spherical groove so that the rotating column (26) The screw rod (26) and the limit plate (7) are connected by rolling via a ball (25); a vertical thread groove (24) is provided at the bottom end of the lower part of the screw rod (26); a stud (23) is installed in the thread groove (24) by threading; the stud (23) comprises a screw rod and a rectangular plate (27) fixedly arranged at the lower end of the screw rod; the upper end of the screw rod is connected in the thread groove (24) by threading; a gasket is provided on the bottom surface of the rectangular plate (27) and is in direct contact with the top end of the mounting plate (19).

Images