Pump body port ring dismounting device

Abstract

The utility model discloses a kind of pump body mouth ring dismounting devices, belong to pump body maintenance equipment technical field, comprising: base;Adjusting clamp, comprising: fixed base disk, spiral groove disc, multiple clamping dog and driving part;Fixed base disk is fixedly installed on base, multiple radial extension guide slide grooves are opened on fixed base disk one surface;Spiral groove disc is rotatably arranged on fixed base disk one surface, multiple spiral grooves are opened on spiral groove disc;Clamping dog includes clamping part and clamping part, clamping part is inserted into guide slide groove through spiral groove and can be moved along the guide slide groove;Clamping part can be used to clamp pump body, driving part is used to drive spiral groove disc relative to fixed base disk rotation;Lifting frame, fixed on base;Lifting assembly is set to lifting frame, for lifting pump body mouth ring.The application is strong in universality and can meet the maintenance needs of efficient, lossless and safe.

Description

Technical Field

[0001] This utility model relates to the technical field of pump body repair equipment, and in particular to a pump body inlet ring disassembly device. Background Technology

[0002] In fluid transport equipment such as centrifugal pumps and chemical pumps, the pump body inlet ring is the core wear-resistant sealing component of the pump. It operates under the conditions of media scouring and friction for a long time, and is prone to problems such as wear, corrosion and excessive clearance. In order to ensure the pump operating efficiency and sealing performance, the pump body inlet ring, which is interference-fitted inside the pump casing, needs to be disassembled and replaced regularly.

[0003] Currently, there are no dedicated automated disassembly tools for pump body inlet rings in the industry. On-site, manual hammering, prying with pry bars, or direct grinding are commonly used. The above-mentioned existing disassembly methods have drawbacks such as high labor intensity, uneven force that easily damages parts, poor safety, and weak versatility.

[0004] Therefore, it is necessary to propose a pump body inlet ring disassembly device to solve the above problems.

[0005] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this application. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a pump body inlet ring disassembly device that enables universal disassembly of pump body inlet rings of various specifications, avoids damage to the pump body and inlet ring during the disassembly process, reduces manual labor intensity, improves maintenance efficiency, and enhances on-site work safety, thereby meeting the needs for efficient, non-destructive, and safe maintenance.

[0007] The specific technical solution of this utility model embodiment is as follows: A pump body inlet ring disassembly device includes: a base; an adjusting clamp comprising: a fixed base plate, a spiral grooved plate, multiple clamping claws, and a driving component; the fixed base plate is fixedly mounted on the base, and the fixed base plate has a first surface and a second surface disposed opposite to each other along its thickness direction, the first surface having multiple radially extending guide grooves; the spiral grooved plate is rotatably disposed on the first surface of the fixed base plate, and the spiral grooved plate has multiple spiral grooves; the clamping claws include a snap-fit ​​portion and a clamping portion, the snap-fit ​​portion passing through the spiral grooves and inserting into the guide grooves and being able to move along the guide grooves, the clamping portion being used to clamp the pump body; the driving component being used to drive the spiral grooved plate to rotate relative to the fixed base plate; a lifting frame fixedly disposed on the base; and a lifting assembly disposed on the lifting frame for lifting the pump body inlet ring.

[0008] Furthermore, the driving component is a push rod protruding from the outer periphery of the spiral grooved disk, and the driving component can receive external driving force to drive the spiral grooved disk to rotate relative to the fixed base disk.

[0009] Furthermore, the extension direction of the spiral groove is consistent with the direction of the Archimedean spiral.

[0010] Furthermore, there are four guide grooves, which are evenly arranged at 90° intervals; there are four spiral grooves, which are evenly arranged at 90° intervals; and there are four clamping claws.

[0011] Furthermore, the adjusting fixture also includes a buffer layer, the buffer layer, the spiral groove disk and the fixed base disk are stacked sequentially along the thickness direction, the buffer layer has an installation slot adapted to the guide groove, and the snap-fit ​​part passes through the installation slot and the spiral groove in sequence and is inserted into the guide groove.

[0012] Furthermore, the lifting assembly includes a lifting drive structure for providing driving force, a lifting member with one end connected to the lifting drive structure, a lifting member connected to the other end of the lifting member, a plurality of lifting components movably disposed on the lower surface of the lifting member, and a guide wheel assembly disposed on the lifting frame, wherein the lifting member and the guide wheel assembly are in a driving cooperation.

[0013] Furthermore, the lower surface of the lifting component is provided with multiple mounting parts at intervals, each of which is movably engaged with the hoisting component. After the hoisting component changes position, it can adjust the circumferential hoisting point of the docking pump body inlet ring.

[0014] Furthermore, the lifting component includes a disc-shaped lifting body, and a plurality of mounting portions are evenly spaced along the circumferential direction on the lower surface of the lifting body, wherein the mounting dimensions of the mounting portions are larger than the fitting dimensions of the lifting component.

[0015] Furthermore, the mounting part is a strip-shaped lug extending radially along the lifting body, and the lifting component is a lifting strap, which is threaded onto the strip-shaped lug and can switch positions along the longitudinal extension direction of the strip-shaped lug.

[0016] Furthermore, the guide wheel assembly includes a fixed pulley group, the lifting frame is provided with a first crossbeam, the fixed pulley group is provided on the first crossbeam, and the center of the fixed pulley group on the first crossbeam, the center of the lifting member and the center of the pump body are collinear.

[0017] The technical solution of this utility model has the following significant beneficial effects: The pump body inlet ring disassembly device provided in this application embodiment, through the adjusting clamp on the base, enables a single device to be compatible with pump bodies of different outer diameters and pump body inlet rings of different inner diameters, thus expanding the applicability of the tooling. It eliminates the need for custom-made disassembly tools for various pump models, offering strong versatility and low operating costs. Furthermore, the adjusting clamp, in conjunction with the lifting assembly mounted on the lifting frame, ensures that the pulling force is always transmitted vertically along the pump body's central axis, solving the single-point uneven load problem caused by traditional manual prying and hammering disassembly. This avoids incomplete rounding and deformation of the inlet ring, as well as damage to the pump body sealing surface, maintaining pump body assembly accuracy, effectively extending the service life of the pump body and inlet ring, and reducing spare parts wear and equipment downtime. Simultaneously, the entire device relies on a lifting drive structure to provide automated lifting power, replacing the arduous manual hammering and prying operations requiring multiple personnel. This reduces the labor intensity of maintenance personnel, simplifies the disassembly process, shortens the maintenance time for a single pump body, and effectively improves the overall operating efficiency of the production line.

[0018] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0019] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances.

[0020] Figure 1 This is one of the structural schematic diagrams of a pump body inlet ring removal device provided in the embodiments of this application, in which a pump body inlet ring is installed; Figure 2 This is a second schematic diagram of a pump body inlet ring removal device provided in the embodiments of this application, in which a pump body inlet ring is installed; Figure 3 for Figure 1 A side view of a pump body inlet ring removal device; Figure 4 This is a schematic diagram of the adjusting clamp in a pump body inlet ring disassembly device provided in the embodiments of this application; Figure 5 This is an exploded view of the adjusting clamp in a pump body inlet ring disassembly device provided in the embodiments of this application; Figure 6 This is a schematic diagram of the lifting frame of a pump body inlet ring disassembly device provided in the embodiments of this application; Figure 7 This is a schematic diagram of the lifting assembly of a pump body inlet ring disassembly device provided in the embodiments of this application; Figure 8 This is a front view of the lifting assembly of a pump body inlet ring disassembly device provided in the embodiments of this application; Figure 9 This is a side view of the lifting assembly of a pump body inlet ring disassembly device provided in an embodiment of this application.

[0021] The reference numerals in the above figures are as follows: 1. Base; 12. Casters; 13. Buffer layer; 130. Installation slotting; 2. Adjusting the clamps; 21. Fixed base plate; 210. Guide groove; 22. Spiral grooved disc; 220. Spiral groove; 23. Clamping claws; 231. Connecting part; 232. Clamping part; 24. Driving components; 3. Lifting frame; 31. Column; 32. Extension support; 33. Support components; 34. Operating handle; 35. Crossbeam; 351. First crossbeam; 352. Second crossbeam; 353. The third crossbeam; 36. Guide wheel assembly; 4. Improve the drive structure; 5. Improve components; 51. Lifting component; 512. Installation Department; 52. Lifting components; 53. Lifting components; 6. Mouth ring; X, first direction; Y, the second direction; Z, altitude direction. Detailed Implementation

[0022] The details of this utility model can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of this utility model described herein are only for explaining the purpose of this utility model and should not be construed as limiting this utility model in any way. Under the teachings of this utility model, those skilled in the art can conceive of any possible modifications based on this utility model, and these should all be considered to fall within the scope of this utility model. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, it can be a mechanical connection or an electrical connection, or it can be a connection within two elements, which can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] This utility model provides a pump body inlet ring disassembly device, which can realize universal disassembly of pump body inlet rings of various specifications, avoid damage to the pump body and inlet ring during the disassembly process, reduce manual labor intensity, improve maintenance efficiency, and improve on-site operation safety, thereby meeting the needs of efficient, non-destructive and safe maintenance.

[0025] Please refer to the following for comprehensive information. Figures 1 to 9 This application specification provides a pump body inlet ring disassembly device, which may include: a base 1; an adjusting clamp 2, the adjusting clamp 2 including: a fixed base plate 21, a spiral grooved plate 22, multiple clamping claws 23, and a driving component 24; the fixed base plate 21 is fixedly mounted on the base 1, and the fixed base plate 21 has a first surface and a second surface along the thickness direction, the first surface having multiple radially extending guide grooves 210; the spiral grooved plate 22 is rotatably disposed on the first surface of the fixed base plate 21, the spiral grooved plate 22 being... The spiral groove disk 22 has multiple spiral grooves 220; the clamping claw 23 includes a snap-fit ​​part 231 and a clamping part 232. The snap-fit ​​part 231 passes through the spiral groove 220 and is inserted into the guide slide 210 and can move along the guide slide 210. The clamping part 232 can be used to clamp the pump body; the driving member 24 is used to drive the spiral groove disk 22 to rotate relative to the fixed base disk 21; the lifting frame 3 is fixed on the base 1; and the lifting assembly 5 is disposed on the lifting frame 3 and is used to lift the pump body inlet ring 6.

[0026] The pump body inlet ring disassembly device provided in this application embodiment uses the adjusting clamp 2 on the base 1, such as Figure 1 and Figure 2As shown, a single device can accommodate pump bodies with different outer diameters and pump body inlet rings 6 with different inner diameters, significantly expanding the applicability of the tooling. It eliminates the need for custom-made disassembly tools for various pump models, offering high versatility and low operating costs. Furthermore, the adjusting clamp 2, in conjunction with the lifting assembly 5 mounted on the lifting frame 3, ensures that the lifting force is always transmitted vertically and evenly along the pump body's central axis. This completely solves the problems of single-point uneven loading and force distribution caused by traditional manual prying and hammering disassembly, effectively preventing inlet ring deformation and pump body sealing surface damage, maintaining the original assembly accuracy of the pump body, extending the service life of the pump body and inlet ring 6, and reducing spare parts wear and equipment downtime. Simultaneously, the entire device relies on the lifting drive structure 4 to provide automated lifting power, replacing the arduous manual hammering and prying operations of multiple personnel. This significantly reduces the labor intensity of maintenance personnel, simplifies disassembly procedures, shortens the maintenance time for a single pump body, and effectively improves the overall operating efficiency of the production line and the standardization of equipment maintenance.

[0027] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] The pump body inlet ring disassembly device mainly includes a base 1, an adjusting clamp 2, a lifting frame 3, and a lifting component 5.

[0029] like Figure 1 As shown, the base 1 can be a high-strength frame base. For example, the base 1 can be integrally welded from a Q235 channel steel frame, resulting in high overall structural rigidity and strong load-bearing capacity. It can withstand the vertical tension and clamping load during the disassembly of the mouth ring and is not prone to deformation. The lower surface of the base 1 is equipped with casters 12, each equipped with a braking mechanism. The casters 12 can be bolted to the frame of the base 1, allowing for flexible movement and quick repositioning of the machine within the workshop. With the braking mechanism locked, even under maximum disassembly tension, the machine will not shift or shake, effectively maintaining coaxial accuracy and ensuring a stable and reliable disassembly process.

[0030] like Figure 4 and Figure 5 As shown, in this embodiment, the adjusting clamp 2 includes: a fixed base plate 21, a spiral grooved plate 22, multiple clamping claws 23, and a driving component 24. The fixed base plate 21 is fixedly installed at the center working position of the base 1. The fixed base plate 21 can be a disc with a certain thickness, with a regular structure and uniform force distribution, which facilitates circumferential uniform layout and centering clamping. Of course, in this embodiment, it is not excluded that the fixed base plate 21 is square or other structures. In this embodiment, a circular fixed base plate 21 is mainly used as an example for description.

[0031] The fixed base disk 21 has a first surface and a second surface arranged opposite to each other along the thickness direction. Multiple guide grooves 210 extending radially are formed on the first surface. The guide grooves 210 are non-through blind grooves in the thickness direction, which have high structural strength and good guiding stability. In the radial direction, the guide grooves 210 are radial straight grooves extending from the circumferential sidewall of the fixed base disk 21 towards the center, which can provide precise radial movement constraints for the clamping claws 23, ensuring that the claws slide only radially and without circumferential offset.

[0032] The spiral grooved disc 22 is rotatably fitted onto the first surface of the fixed base disc 21. The spiral grooved disc 22 has multiple spiral grooves 220, which are through grooves in the thickness direction, facilitating the through-fitting and sliding engagement of the clamping jaws 23. Specifically, the extending direction of the spiral grooves 220 is consistent with the extending direction of the Archimedean spiral. The Archimedean spiral has the characteristic of constant diameter variation, allowing the spiral grooved disc 22 to accurately convert the circumferential rotational motion into synchronous radial linear motion of each clamping jaw 23 during rotation, ensuring that the extension and retraction displacement of each jaw is completely consistent, thereby achieving automatic centering and clamping of the pump body.

[0033] The clamping claw 23 includes an integrally formed snap-fit ​​portion 231 and a clamping portion 232, which has high overall structural strength and is not easily deformed. The snap-fit ​​portion 231 passes through the spiral groove 220 and is inserted into the guide slide groove 210, and is simultaneously constrained by the trajectory of the spiral groove 220 and radially limited by the guide slide groove 210, realizing linkage sliding; the clamping portion 232 is arranged outward to stably abut against the outer wall of the pump body, realizing the limiting and fixing of the pump body.

[0034] The driving component 24 is fixed on the spiral groove disk 22. When the driving component 24 is driven by an external driving force, it can drive the spiral groove disk 22 to rotate as a whole. Then, through the cooperation of the spiral groove 220 and the snap-fit ​​part 231, it can synchronously drive multiple clamping claws 23 to perform synchronous radial contraction or opening along the guide slide 210, so as to realize the quick clamping and release of pump bodies with different outer diameters.

[0035] In one embodiment, the driving component 24 is a push rod protruding from the outer side of the spiral grooved disc 22. It has a simple structure and is easy to operate, and can directly receive manual pushing force or external auxiliary driving force (such as electric driving force, hydraulic driving force, pneumatic driving force, etc.). When the driving component 24 receives external driving force and drives the spiral grooved disc 22 to rotate along a first rotation direction, the spiral grooved disc 22 drives multiple clamping claws 23 to move radially inward synchronously along the guide groove 210, achieving pump body clamping and positioning. When the driving component 24 receives external driving force and drives the spiral grooved disc 22 to rotate along a second rotation direction opposite to the first rotation direction, the spiral grooved disc 22 drives multiple clamping claws 23 to move radially outward synchronously along the guide groove 210, achieving pump body release and unloading. The adjustment process is smooth, with good synchronization and high centering accuracy.

[0036] In other embodiments, the drive member 24 may also be other structural forms for driving the spiral groove disk 22 to rotate, such as a gear structure disposed on its outer periphery.

[0037] In one embodiment, there are four guide grooves 210, which are arranged in a uniform ring at 90° intervals around the center of the fixed base plate 21. Correspondingly, there are four spiral grooves 220, which are also arranged in a uniform ring at 90° intervals around the center of the spiral groove plate 22. The number of clamping claws 23 is also set to four. The four sets of claws are arranged in a cross-shaped symmetrical and uniform manner, resulting in uniform clamping force and excellent centering effect. This effectively avoids eccentricity and skewing of the pump body during clamping, further ensuring the coaxiality of the subsequent lifting process of the port ring 6, and achieving non-destructive disassembly.

[0038] In one embodiment, the adjusting clamp 2 further includes a buffer layer 13. The buffer layer 13, the spiral grooved disc 22, and the fixed base disc 21 are stacked sequentially from top to bottom along the thickness direction, resulting in a compact overall stacked assembly structure with small fitting gaps and stable transmission. The buffer layer 13 has mounting slots 130 that are adapted to the guide grooves 210 one by one. The snap-fit ​​portion 231 passes through the mounting slot 130 and the spiral groove 220 sequentially and is inserted into the guide groove 210, achieving a complete sliding fit of the clamping jaws. The buffer layer 13 effectively isolates the spiral grooved disc 22 from the bottom of the pump body, buffering clamping pressure and reducing rigid contact wear. Simultaneously, it reduces the rotational friction of the spiral grooved disc 22, lowers the resistance to adjustment operation, and improves the overall smoothness and service life of the adjusting clamp 2.

[0039] The adjusting clamp 2 of this application adopts an Archimedes spiral four-jaw self-centering clamping structure, which has extremely high clamping and centering accuracy and operational adaptability. Compared with the traditional two-jaw clamping and manual alignment method, the 90° four-point symmetrical synchronous clamping structure can achieve uniform circumferential pressure on the pump body flange and circular outer wall, automatically complete the coaxial alignment of the workpiece, and completely eliminate clamping offset and eccentricity problems. It provides a precise coaxial reference for the vertical non-destructive disassembly of the mouth ring 6, avoiding defects such as out-of-roundness of the mouth ring 6 and scratches on the sealing surface from the source. At the same time, this device adopts a planar spiral stacked layout, with a thin and compact overall structure and small thickness. Compared with the traditional bevel gear four-jaw chuck, it occupies less space, is suitable for narrow equipment installation and working conditions, and has a high degree of structural integration, low failure rate, and convenient maintenance. Furthermore, this clamping structure boasts exceptional drive adaptability. The external drive push rod can flexibly match various drive methods such as manual push-pull, electric push rod, and cylinder, meeting both the needs of manual maintenance tooling in workshops and the integration applications of automated production lines. Its versatility and scenario adaptability are extremely strong. Coupled with the replaceable clamping jaws 23 structure, it can quickly adapt to the clamping operations of pump bodies and flanges with different outer diameter specifications, greatly expanding the applicability of the device, effectively reducing the tooling customization costs and equipment investment for multi-specification workpiece maintenance, and significantly improving the standardization, precision, and efficiency of pump body inlet ring 6 disassembly operations.

[0040] Please refer to the following: Figure 2 , Figure 3 and Figure 6 In this embodiment, the lifting frame 3 is fixedly installed on the base 1 and located behind the adjusting clamp 2, providing a stable support foundation for the overall lifting and disassembly structure. Multiple crossbeams 35 are installed on the lifting frame 3, arranged parallel to each other from top to bottom along the height direction Z of the lifting frame 3, forming a multi-layered stable support structure. This structure exhibits uniform stress distribution and high rigidity, effectively counteracting the vertical tension and lateral force generated during the lifting process, preventing frame deformation and swaying. Guide wheel assemblies 36 are fixedly installed at the middle positions of each of the multiple crossbeams 35. The guide wheel assemblies 36 can be fixed pulley systems with rolling bearings, offering flexible rotation and low frictional resistance, significantly reducing power loss in the lifting drive structure 4 and ensuring a smooth and efficient lifting transmission process.

[0041] The lifting frame 3 includes two symmetrically arranged columns 31, spaced laterally. The bottom ends of the columns 31 are fixed to the base plate 1 to ensure the overall stability of the machine. Each layer of crossbeams 35 is fixedly connected to the two side columns 31 at both ends, forming an integral portal frame structure through welding. This structure exhibits excellent bending and torsional resistance, can withstand high-intensity lifting loads for extended periods, and is not prone to deformation, effectively ensuring coaxial accuracy and structural reliability during long-term operation.

[0042] Furthermore, the base 1 has a first side close to the lifting frame 3 and a second side away from the lifting frame 3 along the first direction X. An extension bracket 32 ​​extending along the first direction X and close to the adjusting clamp 2 is provided on the upper middle part of the column 31. A support member 33 is also provided between the extension bracket 32 ​​and the column 31. The support member 33 provides oblique reinforcement to the cantilevered extension bracket 32, shares the tensile force on the extension bracket 32, prevents the bracket from bending and cracking under long-term stress, and improves the structural strength and durability of the entire frame. An operating handle 34 is also provided on the side of the column 31 away from the support member 33. Operators can directly grasp the operating handle 34 to push and pull the entire machine. Combined with the casters 12 of the base 1, the entire device can be moved to the workstation, making movement convenient and quick.

[0043] Please refer to the following: Figure 3 and Figure 6 The crossbeam 35 comprises three beams, which extend longitudinally along a second direction Y perpendicular to the first direction X, and both ends of the three beams 35 are fixed to two columns 31 respectively. The three beams 35 include a first beam 351 located on the extension bracket 32, a second beam 352 located between the two columns 31 and below the first beam 351, and a third beam 353 located between the two columns 31 and above the first beam 351. The guide wheel assembly 36 is a fixed pulley group, which is installed in the middle positions of the first beam 351, the second beam 352, and the third beam 353 via rolling bearings. The friction coefficient of the pulley structure can be controlled within 0.05, resulting in low rotational resistance and high force transmission efficiency.

[0044] like Figure 3 As shown, the lifting assembly 5 includes a lifting member 51, a hoisting member 52, and a lifting device 53. These three components work together to complete the adaptive, coaxial, multi-point lifting and disassembly operation of the pump body inlet ring 6. The hoisting member 52 is preferably made of steel wire rope, which has high strength, good toughness, and is not easily stretched or deformed, thus stably transmitting the lifting force. The hoisting member 52 passes sequentially through guide wheel assemblies 36 on the first crossbeam 351, the second crossbeam 352, and the third crossbeam 353. One end is connected to the drum structure of the lifting drive structure 4 via multiple sets of highly layered guide wheel assemblies 36. The multi-layered guide wheel assemblies 36 provide all-round limiting, guidance, and correction for the hoisting member 52, strictly constraining its transmission trajectory and preventing problems such as deviation, derailment, and offset during the lifting process, ensuring that the pulling force is always transmitted vertically.

[0045] Please refer to the following: Figure 7 , Figure 8 and Figure 9The other end of the lifting component 52 is fixedly connected to the center of the lifting component 51. The lifting component 51 is a disc-shaped central pull plate structure, which has uniform force distribution and good central stability. The lifting component 51 includes a disc-shaped lifting body. Multiple mounting parts 512 are evenly spaced along the circumference on the lower surface of the lifting body. The mounting parts 512 adopt a radially extending strip-shaped lug structure. The assembly size of the mounting parts 512 is larger than the mating size of the lifting component 53, so that the lifting component 53 can flexibly slide and adjust its position radially inside the mounting parts 512.

[0046] Each mounting part 512 is used for adjustable assembly lifting components 53. The lifting components 53 are preferably made of flexible nylon lifting straps, which can effectively fit the structure of the pump body inlet ring 6, disperse local stress, and avoid local deformation of the inlet ring 6 caused by rigid pulling. The lower end of each lifting component 53 is used to connect to the preset lifting points around the pump body inlet ring 6, forming a multi-point synchronous traction structure around the circumference, ensuring that the inlet ring 6 is subjected to uniform force, without eccentric load, and without jamming during disassembly. Among them, the center of the guide wheel assembly 36 on the first crossbeam 351 and the center of the lifting component 51 are collinear with the center of the pump body. With the precise centering and positioning of the front-end adjusting clamp 2, the pump body inlet ring 6 can be disassembled coaxially and vertically without damage throughout the process, completely avoiding problems such as unilateral eccentric load, jamming of the inlet ring 6, out-of-round deformation, and scratches on the pump body sealing surface.

[0047] In this embodiment, the lifting drive structure 4 is installed on the corresponding crossbeam 35 of the lifting frame 3, and mainly includes a drive motor and a winding drum. The output shaft of the drive motor is connected to the winding drum, and the motor drives the drum to wind forward or release the lifting component 52 in reverse through forward and reverse rotation. The wire rope passes through the guide wheel assembly 36 on the upper third crossbeam 353, the lower second crossbeam 352 and the middle first crossbeam 351 in sequence. Relying on the precise constraint of the multi-layer guide structure, the horizontal winding power is completely converted into vertical upward traction force, realizing vertical and stable transmission of tension, and forming a uniform upward lifting tension on the pump body inlet ring 6. Meanwhile, the drive motor is equipped with a forward and reverse rotation control module and an overload protection module. The forward and reverse rotation control module can accurately control the lifting and resetting operation process, realizing automated start and stop and smooth control of dismantling operations. The overload protection module can automatically cut off the power output when the lifting force exceeds the rated threshold of the equipment, effectively avoiding the risks of component deformation, wire rope breakage, and sudden stress damage to the pump body inlet ring 6 caused by tensile overload, and greatly improving the stability and safety of the device operation.

[0048] In a specific application scenario, the pump body inlet ring disassembly device provided in this application includes the following steps when disassembling the pump body inlet ring 6: Before disassembly begins, four lifting lugs are welded to the inner ring of the pump body at four positions: 0°, 90°, 180°, and 270°, to reserve docking points for subsequent hoisting and connection.

[0049] Push the pump body inlet ring removal device to the pump body to be inspected, lock the base 1 universal wheel 12 brake mechanism to prevent the equipment from slipping; place the pump body on the base 1 buffer layer 13, adjust the clamp 2 to limit and center the pump body, ensure that the pump body inlet ring 6 is coaxial with the lifting part 51, and then lock and fix it to complete the reliable fixation of the pump body.

[0050] Based on the actual inner diameter of the ring 6 to be disassembled, slide and adjust the radial position of the lifting component 53 on the strip lug of the lifting component 51 so that the extension length of the lifting component 53 matches the specifications of the ring 6. Then connect the lower end of the lifting component 53 to the preset lifting lugs of the ring 6 one by one and check the reliability of the connection.

[0051] Start the lifting drive structure 4, the motor drives the drum to wind up the lifting component 52. The lifting component 52 is guided and transmitted through the multi-layer guide wheel assembly 36. Following the coaxial constraint of three collinear points, it lifts the mouth ring 6 vertically and uniformly upward until the mouth ring 6 is completely disengaged from the interference fit part of the pump body, completing the non-destructive disassembly operation.

[0052] After the pump body inlet ring 6 is completely disassembled, the universal wheel 12 is released from its lock, and the whole machine is pushed to the designated placement area. The lifting drive structure 4 is controlled to lower the lifting component 52, and the inlet ring 6 is slowly lowered. The entire disassembly process of the pump body inlet ring 6 is completed.

[0053] Overall, the base 1 of this device is equipped with braked casters 12, allowing for flexible transportation within the workshop. It can accommodate multiple maintenance workstations without relying on fixed lifting equipment. The base 1, together with the adjusting clamps 2, can accommodate pump bodies of various flange specifications. The adjustable lifting components 53 on the lifting element 51 can also match pump body inlet rings 6 with different inner diameters. The device boasts strong versatility, and a single unit can meet the disassembly needs of multiple pump models. During operation, the traction force is always output vertically upwards along the pump body axis, and the inlet ring 6 experiences synchronous and uniform force at multiple points around it. This overcomes the single-point uneven load problem caused by traditional hammering and prying, preventing deformation of the inlet ring 6 and damage to the pump body sealing surface, reducing abnormal wear of parts, extending the service life of the pump body, and ensuring stable and continuous operation of the production line. The equipment adopts… The machine uses an electric structure to automatically complete lifting and disassembly, eliminating the need for manual operation by multiple people. This reduces the labor intensity of maintenance personnel, shortens maintenance time, and minimizes production losses caused by equipment downtime. Simultaneously, the machine is equipped with multiple safety protection structures, including 12 universal wheels with brake locking, motor overload protection, and multi-layer lifting component guide limiters, effectively preventing equipment slippage, rope breakage due to excessive tension, detachment of lifting components, and derailment of lifting components, significantly reducing on-site safety hazards. Furthermore, the modular, split structure of the machine simplifies disassembly, assembly, transportation, and troubleshooting, resulting in lower maintenance costs. Its strong versatility allows it to replace multiple sets of dedicated disassembly tools, effectively reducing costs associated with tooling procurement and storage, parts wear and tear, and manual maintenance.

[0054] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from the others. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A pump body inlet ring disassembly device, characterized in that, The pump body inlet ring disassembly device includes: Base (1); Adjusting clamp (2), the adjusting clamp (2) includes: a fixed base plate (21), a spiral groove plate (22), multiple clamping claws (23) and a driving component (24); The fixed base plate (21) is fixedly installed on the base (1). The fixed base plate (21) has a first surface and a second surface along the thickness direction. Multiple guide grooves (210) extending radially are formed on the first surface. The spiral grooved disk (22) is rotatably disposed on the first surface of the fixed base disk (21), and a plurality of spiral grooves (220) are provided on the spiral grooved disk (22). The clamping claw (23) includes a snap-fit ​​part (231) and a clamping part (232). The snap-fit ​​part (231) passes through the spiral groove (220) and is inserted into the guide slide groove (210) and can move along the guide slide groove (210). The clamping part (232) can be used to clamp the pump body. The driving element (24) is used to drive the spiral groove disk (22) to rotate relative to the fixed base disk (21); The lifting frame (3) is fixed on the base (1); And a lifting component (5), which is disposed on the lifting frame (3) for lifting the pump body inlet ring (6).

2. The pump body inlet ring disassembly device as described in claim 1, characterized in that, The driving component (24) is a push rod protruding from the outer periphery of the spiral grooved disk (22). The driving component (24) can receive external driving force to drive the spiral grooved disk (22) to rotate relative to the fixed base disk (21).

3. The pump body inlet ring disassembly device as described in claim 1, characterized in that, The extension direction of the spiral groove (220) is consistent with the extension direction of the Archimedes spiral.

4. The pump body inlet ring disassembly device as described in claim 1, characterized in that, The number of guide grooves (210) is 4, and the 4 guide grooves (210) are evenly arranged at 90° intervals. The number of spiral grooves (220) is 4, and the 4 spiral grooves (220) are evenly arranged at 90° intervals. The number of clamping claws (23) is 4.

5. The pump body inlet ring disassembly device as described in claim 1, characterized in that, The adjusting clamp (2) also includes a buffer layer (13). The buffer layer (13), the spiral groove disk (22), and the fixed base disk (21) are stacked sequentially along the thickness direction. The buffer layer (13) has an installation slot (130) adapted to the guide slide (210). The snap-fit ​​part (231) passes through the installation slot (130) and the spiral groove (220) in sequence and is inserted into the guide slide (210).

6. The pump body inlet ring disassembly device as described in claim 1, characterized in that, The lifting assembly includes a lifting drive structure (4) for providing driving force, a lifting member (52) connected at one end to the lifting drive structure (4), a lifting member (51) connected at the other end of the lifting member (52), a plurality of lifting members (53) movably disposed on the lower surface of the lifting member (51), and a guide wheel assembly (36) disposed on the lifting frame (3), wherein the lifting member (52) and the guide wheel assembly (36) are in a transmission cooperation.

7. The pump body inlet ring disassembly device as described in claim 6, characterized in that, The lower surface of the lifting member (51) is provided with a plurality of mounting parts (512) spaced apart. Each mounting part (512) is movably engaged with the hoisting member (53). After the hoisting member (53) changes position, it can adjust the circumferential hoisting point of the docking pump body inlet ring (6).

8. The pump body inlet ring disassembly device as described in claim 7, characterized in that, The lifting component (51) includes a disc-shaped lifting body, and a plurality of mounting parts (512) are evenly spaced along the circumferential direction on the lower surface of the lifting body. The mounting dimensions of the mounting parts (512) are larger than the mating dimensions of the lifting component (53).

9. The pump body inlet ring disassembly device as described in claim 8, characterized in that, The mounting part (512) is a strip-shaped lug extending along the radial longitudinal direction of the lifting body, and the lifting component (53) is a lifting strap. The lifting strap is threaded through the strip-shaped lug and can switch positions along the longitudinal extension direction of the strip-shaped lug.

10. The pump body inlet ring disassembly device as described in claim 6, characterized in that, The guide wheel assembly (36) includes a fixed pulley group, and the lifting frame (3) is provided with a first crossbeam (351). The fixed pulley group is provided on the first crossbeam (351), and the center of the fixed pulley group on the first crossbeam (351), the center of the lifting member (51), and the center of the pump body are collinear.

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