A vibration damping and stabilizing device for a centrifugal pump and a centrifugal pump.

Abstract

This invention discloses a vibration damping and stabilizing device for a centrifugal pump and a centrifugal pump, relating to the field of centrifugal pump technology. The invention includes an output regulating mechanism, a stabilizing mechanism, and a distance regulating mechanism. The pump body is connected to a water source via the stabilizing mechanism; the output regulating mechanism is connected to the motor drive shaft of the pump body via a transmission belt, and is connected to the stabilizing mechanism via several sets of distance regulating mechanisms. This invention obtains the power of the centrifugal pump motor and its real-time output power by setting the output regulating mechanism, and transmits the real-time power and output power to the stabilizing mechanism using the distance regulating mechanisms; by setting the stabilizing mechanism to control the inflow of water into the centrifugal pump, and by matching the relationship between the inflow of water into the centrifugal pump and the output power of the centrifugal pump motor, the vibration of the centrifugal pump is reduced at its source.

Description

Technical Field

[0001] This invention belongs to the field of centrifugal pump technology, and in particular relates to a shock-absorbing and stabilizing device for centrifugal pumps and a centrifugal pump. Background Technology

[0002] Centrifugal pumps are devices that use a motor to generate centrifugal force to deliver water. During industrial production, centrifugal pumps often vibrate during operation. When a centrifugal pump operates in this state for extended periods, it can cause physical fatigue and failure, or interfere with the propagation of other sound signals. For people working in this environment for long periods, it can also damage their hearing and cause noise pollution. The causes of centrifugal pump vibration are varied. Even during correct installation and use, centrifugal pumps can still vibrate due to a mismatch between the real-time motor power and the inflow water volume caused by power grid fluctuations. Therefore, a vibration damping and stabilizing device for centrifugal pumps is needed. Summary of the Invention

[0003] The purpose of this invention is to provide a shock-absorbing and stabilizing device for centrifugal pumps and a centrifugal pump, thereby solving existing problems.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0005] This invention relates to a vibration damping and stabilizing device for a centrifugal pump, comprising an output adjustment mechanism, a stabilizing mechanism, and a distance adjustment mechanism. The pump body is connected to a water source through the stabilizing mechanism. The output adjustment mechanism is connected to the motor drive shaft of the pump body via a transmission belt, and the output adjustment mechanism is connected to the stabilizing mechanism through several sets of distance adjustment mechanisms.

[0006] Furthermore, the output adjustment mechanism includes a transmission disc, an output disc, an adapter disc, a drawer frame, a rotating arm, a limiting frame, a limiting plate, a crossbeam, and a handle. The transmission disc has a double-layer disc structure, with one layer connected to the transmission belt and the other layer connected to the output disc via the adapter disc. Two drawer frames are arranged parallel to each other, with the transmission disc and output disc housed within them and mounted at opposite ends of each frame. The drawer frame is a draw-out structure, with shafts at both ends connecting the transmission disc and output disc to the ends of the rotating arm. The rotating arm includes two rotating plates that are rotatably fitted together, and both plates are of the same length. The rotating plates are rotatably fitted to the drawer frame. The limiting frame has a "C"-shaped frame structure and is mounted on the shaft connecting the two rotating plates. The limiting plate is inserted into the limiting frame, and its top is fixed to the crossbeam via a crossbeam. The bottom of the crossbeam is connected to the handle via several push springs. The adapter disc is mounted between the two limiting plates.

[0007] The limiting frame has teeth arranged opposite each other on two sides inside, and the teeth are connected to the limiting frame by torsion springs; one side of the teeth is connected to an arc plate by several columns.

[0008] The limiting plate has racks on two opposite sides, with the teeth on the racks pointing downwards and positioned to mesh with the pawls. Push grooves are formed on both sides of the top surface of the limiting plate, with a baffle in the middle of each groove. The baffle has several oblong holes. The baffle divides the push grooves into an inner and outer groove, with the outer groove communicating with the outer surface of the limiting plate. A push plate and a pressure plate are provided in the outer groove, both with inclined surfaces that fit together. The push plate and pressure plate move at right angles. The push plate fits against the arc plate. Several connecting shafts are provided on the side of the pressure plate, passing through the oblong holes into the inner groove. Several thread wheels are provided on the inner wall of the inner groove, the number of which corresponds to the number of oblong holes, and their positions are one-to-one. The thread wheels are located on one side of the top of the oblong groove. Several pulleys are also provided on the top of the limiting plate, located on one side of the push groove. Several thread rings are also provided on the opposite surfaces of the two limiting plates.

[0009] The handle is provided with several pull rings around its perimeter, and each pull ring is provided with a pull rope. One end of the pull rope passes through a loop, a pulley, and a spool in sequence before being connected to a coupling shaft.

[0010] Furthermore, the stabilizing mechanism includes a buffer box, a buffer seat, an input flange, and an output flange; the top of the buffer box is connected to the buffer seat; the input flange and the output flange are respectively located on two opposite sides of the buffer box, and the position of the input flange is higher than that of the output flange;

[0011] The buffer box is equipped with several partitions, which leave gaps on both sides of the buffer box to form a serpentine tube structure inside the buffer box; the input flange is located between the two partitions closest to the top of the buffer box.

[0012] The buffer seat includes a connecting seat, a sleeve, a sealing plate, a drive shaft, a drive ring, a transmission shaft, a rotating shaft, and a piston. The connecting seat is a cylindrical structure, installed on the top of the buffer box and communicating with it. A sealing plate is installed inside the connecting seat. The sleeve passes through the connecting seat and the sealing plate, and a sleeve plate is installed at the bottom of the sleeve. Two fixing rings are installed between the sleeve plate and the sealing plate. The drive ring is a ring-shaped tooth structure with teeth on its inner side. The drive ring is installed between the two fixing rings and rotates with the connecting seat. The drive shaft is located on one side of the sleeve and passes through the top surface of the sealing plate and the connecting seat. The drive shaft meshes with the drive ring. The transmission shaft is opposite to the drive shaft about the sleeve and also meshes with the drive ring. The transmission shaft meshes with the rotating shaft, and the rotating shaft rotates with the piston. A plug hole is provided on the surface of the sealing plate, and a sleeve is installed inside the plug hole. The piston moves inside the sleeve, and a notch is provided on the side of the sleeve near the sleeve plate. An air hole is also provided on the top of the connecting seat.

[0013] Furthermore, the distance adjustment mechanism includes a mounting housing, an input shaft, an output shaft, a threaded cylinder, side rings, a limiting sleeve, a threaded rod, a drive disc, and a crank handle. The input shaft, output shaft, threaded cylinder, side rings, limiting sleeve, threaded rod, and drive disc are all installed inside the mounting housing. The input shaft and output shaft have the same structure; one end of the input shaft is provided with a toothed sleeve, which meshes with the toothed sleeve of the output shaft. Two side rings are provided on the side of the input shaft, and limiting sleeves are fitted onto both sides of the side rings. The limiting sleeves are double-layered waist-shaped ring-plate structures, and the side of the limiting sleeve furthest from the side rings is fixedly connected to the threaded cylinder. The threaded cylinder has a cylindrical structure with threads inside. The threaded rod is located inside the threaded cylinder and threadedly engages with the threaded cylinder to form a lead screw structure. One end of the threaded rod is provided with a bevel gear, which meshes with the drive disc. The crank handle penetrates the interior of the mounting housing and is connected to the axis of the drive disc.

[0014] Furthermore, the ends of both the input shaft and the output shaft that are away from the gear sleeve pass through the mounting housing, and each end is provided with a bevel gear.

[0015] Furthermore, it also includes a fixing frame, which is connected to the output adjustment mechanism, the stabilization mechanism, and the distance adjustment mechanism.

[0016] Furthermore, when the pawl is in the stationary state of the limiting frame, the line connecting the two endpoints of the arc plate is in an inclined state.

[0017] Furthermore, the shape and size of the sleeve plate are adapted to the inner diameter of the connecting seat, and the sleeve plate and the connecting seat are in sliding fit.

[0018] Furthermore, a locking groove is provided on one side of the pull-out bracket, and a locking rod is provided in the locking groove. One end of the locking rod is rotatably engaged with the pull-out bracket, and the side of the locking rod is in frictional engagement with the side wall of the locking groove, and the bottom surface of the locking rod is in frictional engagement with the pull-out bracket.

[0019] A centrifugal pump includes a shock-absorbing and stabilizing device for centrifugal pumps as described above.

[0020] The present invention has the following beneficial effects:

[0021] This invention obtains the power of the centrifugal pump motor and the motor's real-time output power by setting an output adjustment mechanism, and transmits the real-time power and output power to the stabilization mechanism by using a distance adjustment mechanism; by setting the stabilization mechanism to control the amount of water entering the centrifugal pump, and by matching the relationship between the amount of water entering the centrifugal pump and the output power of the centrifugal pump motor, the vibration of the centrifugal pump is reduced from the source.

[0022] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the connection structure between a shock-absorbing and stabilizing device for a centrifugal pump and a centrifugal pump according to the present invention.

[0025] Figure 2 This is a schematic diagram of the output adjustment mechanism of a shock-absorbing and stabilizing device for a centrifugal pump according to the present invention;

[0026] Figure 3 This is a top view of the output adjustment mechanism of a shock-absorbing and stabilizing device for a centrifugal pump according to the present invention;

[0027] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the middle AA section;

[0028] Figure 5 for Figure 3 Enlarged view of part A in the middle;

[0029] Figure 6 This is a side view of the output adjustment mechanism of a shock-absorbing and stabilizing device for a centrifugal pump according to the present invention;

[0030] Figure 7 This is a schematic diagram of the stabilizing mechanism of a shock-absorbing and stabilizing device for a centrifugal pump according to the present invention;

[0031] Figure 8 This is a top view of the stabilizing mechanism of a shock-absorbing and stabilizing device for a centrifugal pump according to the present invention;

[0032] Figure 9 for Figure 8 Schematic diagram of the cross-sectional structure of the middle BB section;

[0033] Figure 10 for Figure 8 Schematic diagram of the cross-sectional structure of the middle CC section;

[0034] Figure 11 This is a schematic diagram of the buffer seat of a shock-absorbing and stabilizing device for a centrifugal pump according to the present invention;

[0035] Figure 12 This is a top view of the buffer seat of a shock-absorbing and stabilizing device for a centrifugal pump according to the present invention;

[0036] Figure 13 for Figure 12 Schematic diagram of the cross-sectional structure of the middle DD;

[0037] Figure 14 for Figure 13 Enlarged view of part B in the middle section;

[0038] Figure 15 This is a schematic diagram of the distance adjustment mechanism of a shock absorption and stabilization device for a centrifugal pump according to the present invention;

[0039] Figure 16 This is a side view of the distance adjustment mechanism of a shock-absorbing and stabilizing device for a centrifugal pump according to the present invention;

[0040] Figure 17 for Figure 16 Schematic diagram of the cross-sectional structure of the EE;

[0041] Figure 18 for Figure 16 Schematic diagram of the cross-sectional structure of FF.

[0042] The attached diagram lists the components represented by each number as follows:

[0043] 1. Output adjustment mechanism; 2. Stabilizing mechanism; 3. Distance adjustment mechanism; 4. Pump body; 101. Transmission disc; 102. Output disc; 103. Adapter disc; 104. Pull-out bracket; 105. Swivel arm; 106. Limit frame; 107. Limit plate; 108. Crossbeam; 109. Handle; 141. Locking rod; 161. Pulley tooth; 162. Arc plate; 171. Push groove; 172. Push plate; 173. Pressure plate; 174. Baffle; 175. Coupling shaft; 176. Thread pulley; 177. Pulley; 178. Thread ring; 181. Push spring; 191. Pull ring; 201, buffer box; 202, buffer seat; 203, input flange; 204, output flange; 211, partition plate; 221, connecting seat; 222, sleeve; 223, sealing plate; 224, drive shaft; 225, drive ring; 226, transmission shaft; 227, rotating shaft; 228, piston; 229, vent; 301, mounting shell; 302, input shaft; 303, output shaft; 304, threaded cylinder; 305, side ring; 306, limit sleeve; 307, threaded rod; 308, drive disc; 309, crank handle; 401, transmission belt. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] In the description of this invention, it should be understood that the terms "upper," "middle," "outer," "inner," etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0046] Please see Figure 1 As shown, the present invention is a shock absorption and stabilization device for a centrifugal pump, including an output adjustment mechanism 1, a stabilization mechanism 2, a distance adjustment mechanism 3, and a pump body 4. The pump body 4 is connected to a water source through the stabilization mechanism 2. The output adjustment mechanism 1 is connected to the motor drive shaft of the pump body 4 through a transmission belt 401, and the output adjustment mechanism 1 is connected to the stabilization mechanism 2 through several sets of distance adjustment mechanisms 3.

[0047] The shock absorption and stabilization device also includes a fixed frame, which is connected to the output adjustment mechanism 1, the stabilization mechanism 2, and the distance adjustment mechanism 3.

[0048] like Figures 2-6 As shown, the output adjustment mechanism 1 includes a transmission disc 101, an output disc 102, an adapter disc 103, a pull-out bracket 104, a swivel arm 105, a limiting frame 106, a limiting plate 107, a crossbeam 108, and a handle 109. The transmission disc 101 has a double-layer disc structure, with one layer connected to the transmission belt 401 and the other layer connected to the output disc 102 via the adapter disc 103. The two pull-out brackets 104 are arranged parallel to each other, with the transmission disc 101 and the output disc 102 located within the two pull-out brackets 104, and the transmission disc 101 and the output disc 102 respectively installed at both ends of the two pull-out brackets 104. The pull-out bracket 104 is a pull-out structure. 4. The shafts at both ends for connecting the transmission disc 101 and the output disc 102 are respectively connected to the two ends of the rotating arm 105; the rotating arm 105 includes two rotating plates, which are rotatably engaged and have the same length; the rotating plates are rotatably engaged with the pull-out bracket 104; the limiting frame 106 is a "C" shaped frame structure, and the limiting frame 106 is installed on the shaft connecting the two rotating plates; the limiting plate 107 is inserted into the limiting frame 106, and the top of the limiting plate 107 installed on the two rotating arms 105 is fixed by the crossbeam 108, and the bottom of the crossbeam 108 is connected to the handle 109 by several push springs 181; the adapter plate 103 is installed between the two limiting plates 107;

[0049] The pull-out bracket 104 has a locking groove on one side, and a locking rod 141 is provided in the locking groove. One end of the locking rod 141 is rotatably engaged with the pull-out bracket 104, and the side of the locking rod 141 is in frictional engagement with the side wall of the locking groove, and the bottom surface of the locking rod 141 is in frictional engagement with the pull-out bracket 104.

[0050] The limiting frame 106 has two opposing teeth 161 inside, and the teeth 161 are connected to the limiting frame 106 by a torsion spring. One side of the teeth 161 is connected to an arc plate 162 by several columns. When the limiting frame 106 is in a stationary state, the line connecting the two ends of the arc plate 162 is in an inclined state.

[0051] Among them, the limiting plate 107 has racks on two opposite sides, with the teeth of the racks pointing downwards and the racks positioned to match the shift teeth 161, meshing with the shift teeth 161; the top surface of the limiting plate 107 has push grooves 171 on both sides, with a baffle 174 in the middle of the push grooves 171, and several oblong holes on the baffle 174; the baffle 174 divides the push grooves 171 into an inner groove and an outer groove, with the outer groove communicating with the outer surface of the limiting plate 107; a push plate 172 and a pressure plate 173 are provided in the outer groove, both of which have inclined surfaces, and the inclined surfaces of the push plate 172 and the pressure plate 173 are... The surfaces are in contact, and the movement directions of the push plate 172 and the pressure plate 173 are perpendicular; the push plate 172 is in contact with the arc plate 162; the side of the pressure plate 173 is provided with several connecting shafts 175, which pass through the waist-shaped holes into the inner groove; the inner wall of the inner groove is provided with several thread wheels 176, the number of thread wheels 176 is the same as that of the waist-shaped holes, and their positions correspond one-to-one with the waist-shaped holes, and the thread wheels 176 are located on one side of the top of the waist-shaped groove; the top of the limiting plate 107 is also provided with several pulleys 177, which are located on one side of the push groove 171; several thread rings 178 are also provided on the opposite surfaces of the two limiting plates 107;

[0052] The handle 109 is provided with several pull rings 191 around its perimeter. Each pull ring 191 is provided with a pull rope. One end of the pull rope passes through a wire ring 178, a pulley 177, and a wire wheel 176 in sequence before being connected to a coupling shaft 175.

[0053] like Figures 7-10 As shown, the stabilizing mechanism 2 includes a buffer box 201, a buffer seat 202, an input flange 203, and an output flange 204; the top of the buffer box 201 is connected to the buffer seat 202; the input flange 203 and the output flange 204 are respectively located on two opposite sides of the buffer box 201, and the position of the input flange 203 is higher than that of the output flange 204.

[0054] The buffer box 201 is provided with several partitions 211, and the partitions 211 leave gaps on both sides of the buffer box 201 to form a serpentine tube structure inside the buffer box 201; the input flange 203 is located between the two partitions 211 closest to the top of the buffer box 201.

[0055] like Figures 11-14As shown, the buffer seat 202 includes a connecting seat 221, a sleeve 222, a sealing plate 223, a drive shaft 224, a drive ring 225, a transmission shaft 226, a rotating shaft 227, and a piston 228. The connecting seat 221 is a cylindrical structure, installed on the top of the buffer box 201, and communicating with the buffer box 201. The sealing plate 223 is provided inside the connecting seat 221. The sleeve 222 passes through the connecting seat 221 and the sealing plate 223, and a sleeve plate is provided at the bottom of the sleeve 222. Two fixing rings are provided between the sleeve plate and the sealing plate 223. The drive ring 225 is a ring-shaped tooth structure, and the teeth are provided on the inner side of the drive ring 225. The drive ring 225 is installed between the two fixing rings and drives... The ring 225 and the connecting seat 221 are rotatably engaged; the drive shaft 224 is located on one side of the sleeve 222 and passes through the top surface of the sealing plate 223 and the connecting seat 221, and the drive shaft 224 meshes with the drive ring 225; the transmission shaft 226 is arranged opposite to the drive shaft 224 about the sleeve 222, and the transmission shaft 226 also meshes with the drive ring 225; the transmission shaft 226 meshes with the rotating shaft 227, and the rotating shaft 227 is rotatably engaged with the piston 228; the surface of the sealing plate 223 is provided with a plug hole, and a sleeve is provided in the plug hole, the piston 228 moves in the sleeve, and the side of the sleeve near the sleeve is also provided with a notch; the top of the connecting seat 221 is also provided with an air hole 229.

[0056] The shape and size of the sleeve plate are adapted to the inner diameter of the connecting seat 221, and the sleeve plate and the connecting seat 221 are in sliding fit.

[0057] like Figures 15-18 As shown, the distance adjustment mechanism 3 includes a mounting housing 301, an input shaft 302, an output shaft 303, a threaded cylinder 304, a side ring 305, a limiting sleeve 306, a threaded rod 307, a drive disc 308, and a crank 309. The input shaft 302, output shaft 303, threaded cylinder 304, side ring 305, limiting sleeve 306, threaded rod 307, and drive disc 308 are all installed inside the mounting housing 301. The input shaft 302 has the same structure as the output shaft 303, and a toothed sleeve is provided at one end of the input shaft 302, which meshes with the toothed sleeve of the output shaft 303. The side of the input shaft 302... Two side rings 305 are provided, and limiting sleeves 306 are sleeved on both sides of the side rings 305. The limiting sleeves 306 are double-layer waist-shaped ring plate structures, and the side of the limiting sleeves 306 away from the side rings 305 is fixedly connected to the threaded cylinder 304. The threaded cylinder 304 is a cylindrical structure with threads inside. The threaded rod 307 is provided inside the threaded cylinder 304 and is threadedly engaged with the threaded cylinder 304 to form a lead screw structure. One end of the threaded rod 307 is provided with a bevel gear, which meshes with the drive disc 308. The crank handle 309 is inserted into the interior of the mounting shell 301 and connected to the shaft of the drive disc 308.

[0058] The input shaft 302 and the output shaft 303 both pass through the mounting housing 301 at the ends away from the gear sleeve, and both ends are provided with bevel gears.

[0059] It should be further explained that the shaft of the output disk 102 extends to a certain extent and has a bevel gear at the end, which meshes with the input shaft 302 of a distance adjustment mechanism 3.

[0060] A centrifugal pump includes the aforementioned shock-absorbing and stabilizing device for centrifugal pumps.

[0061] Please see Figures 1-18 As shown, the usage method and working principle of this invention are as follows:

[0062] When using it, select the centrifugal pump that needs to be used, and then add a pulley or sprocket between the pump and the transmission shaft of the motor according to the model and size. When using a pulley, the transmission belt 401 is a belt, and when using a sprocket, the transmission belt 401 is a chain.

[0063] First, adjust the transmission belt 401 to a suitable working state, so that it can drive the transmission disc 101 and prevent the transmission belt 401 from fatigue breaking and reducing its service life.

[0064] Then, open the locking lever 141, adjust the position of the output disk 102 so that the extension line of the axis of the output disk 102 is not blocked by the centrifugal pump or other obstacles, and then close the locking lever 141 to lock the position of the output disk 102.

[0065] Then, hold the crossbeam 108 with your hand and pinch the handle 109 with your fingers. Through the cooperation of the crossbeam 108 and the handle 109, unlock the adapter plate 103 installed on the limit plate 107, and press down the adapter plate 103 so that the adapter plate 103 engages with the transmission plate 101 and the output plate 102 respectively.

[0066] Next, adjust the distance adjustment mechanism 3 connected to the output disk 102 in sequence so that the stabilizing mechanism 2 can be connected to the inlet of the centrifugal pump. More specifically, rotate the distance adjustment mechanism 3 connected to the output disk 102 in sequence, first adjust the stabilizing mechanism 2 to the same plane as the inlet of the centrifugal pump, then adjust it to the same height as the inlet of the centrifugal pump, and finally adjust the output flange 204 of the stabilizing mechanism 2 to the appropriate position of the inlet of the centrifugal pump and install it.

[0067] The output regulating mechanism 1 drives the stabilizing mechanism 2 by utilizing the power of the centrifugal pump's own motor drive shaft and the motor's rotation speed; the distance regulating mechanism 3 transmits the power from the output regulating mechanism 1 to the stabilizing mechanism 2; the stabilizing mechanism 2 uses the power and rotation speed of the centrifugal pump and, in conjunction with the piston 228, adjusts the air pressure in the buffer seat 202, thereby regulating the air pressure in the buffer tank 201, thus controlling the water inflow and ensuring that the water inflow always matches the power of the centrifugal pump, thereby reducing the vibration of the centrifugal pump;

[0068] During installation, when the adapter plate 103 needs to be lifted, the push spring 181 is compressed when the handle 109 is squeezed, and returns to its original position when released. Through the pull of the rope, after several turns, the connecting shaft 175 is pulled to one side. The connecting shaft 175 drives the pressure plate 173 to generate an outward pushing force on the push plate 172. The push plate 172 bulges outward at this time, pushing the arc plate 162 to rotate. The arc plate 162 drives the toothed gear 161 to retract, the torsion spring is compressed, and the limiting plate 107 and the adapter plate 103 on it are in the unlocked state and can be pulled up. When it is necessary to press down on the adapter plate 103, it is pressed down directly, and the rack on the limiting plate 107 directly moves the toothed gear 161.

[0069] When adjusting the distance adjustment mechanism 3, simply rotate the crank handle 309 to adjust the distance between the input shaft 302 and the output shaft 303; several sets of adjustment mechanisms 3 cooperate with each other to enable the shock absorption and stabilization device of the present invention to be adapted to any type of centrifugal pump;

[0070] During use, the vibration of the centrifugal pump is affected by both the unstable output power of the motor and the inlet water volume. Therefore, in this process, the output power of the centrifugal pump motor is directly extracted, and the air between the inner sleeve plate of the buffer seat 202 and the sealing plate 223 is discharged by the piston to adjust the air pressure in the buffer box 201. The higher the output power of the centrifugal pump motor, the greater the power obtained by the piston, the greater the amount of air that can be discharged, and the higher the water volume in the buffer box. Therefore, the size of the inlet of the buffer box should be larger than the size of the outlet to meet the instantaneous large flow rate requirement.

[0071] It should be noted that during this process, it is only necessary to ensure that the space between the sleeve plate and the sealing plate 223 is relatively sealed. The notch set at the bottom of the sleeve is also to ensure air circulation, so that the internal air pressure is in a relatively balanced state when the piston is working, and then the piston makes corresponding changes according to the output power of the centrifugal pump. In addition, since all the connections used in this invention are mechanical, and the density of air is much less than that of water, the air pressure will be more sensitive to the water pressure when the motor power changes, so as to match the required water intake before the water intake demand, thereby reducing the vibration of the centrifugal pump.

[0072] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A vibration damping and stabilizing device for a centrifugal pump, comprising an output adjustment mechanism (1), a stabilizing mechanism (2), and a distance adjustment mechanism (3), characterized in that: The pump body (4) is connected to the water source through the stabilizing mechanism (2); the output regulating mechanism (1) is connected to the motor drive shaft of the pump body (4) through a transmission belt (401), and the output regulating mechanism (1) is connected to the stabilizing mechanism (2) through several sets of distance regulating mechanisms (3); The output adjustment mechanism (1) includes a transmission disc (101), an output disc (102), a transfer disc (103), a drawer frame (104), a rotating arm (105), a limiting frame (106), a limiting plate (107), a crossbeam (108), and a handle (109). The transmission disc (101) has a double-layer disc structure, with one layer connected to the transmission belt (401) and the other layer connected to the output disc (102) via the transfer disc (103). The two drawer frames (104) are arranged in parallel relative to each other, with the transmission disc (101) and the output disc (102) located within the two drawer frames (104), and the transmission disc (101) and the output disc (102) respectively installed at both ends of the two drawer frames (104). The drawer frame (104) has a drawer structure. The shafts at both ends of the pull frame (104) for connecting the transmission disc (101) and the output disc (102) are respectively connected to the two ends of the rotating arm (105); the rotating arm (105) includes two rotating plates, which are rotatably engaged with each other, and the two rotating plates are of the same length; the rotating plates are rotatably engaged with the pull frame (104); the limiting frame (106) is a "C" shaped frame structure, and the limiting frame (106) is installed on the shaft connecting the two rotating plates; the limiting plate (107) is inserted into the limiting frame (106), and the top of the limiting plate (107) installed on the two rotating arms (105) is fixed by the crossbeam (108), and the bottom of the crossbeam (108) is connected to the handle (109) by several push springs (181); the adapter plate (103) is installed between the two limiting plates (107); The limiting frame (106) has two opposing teeth (161) inside, and the teeth (161) are connected to the limiting frame (106) by a torsion spring; one side of the teeth (161) is connected to an arc plate (162) by several columns. Among them, the limiting plate (107) is provided with racks on two opposite sides, the teeth of the racks are downward and the position of the racks is adapted to the prying teeth (161), and the racks mesh with the prying teeth (161); the top surface of the limiting plate (107) is provided with push grooves (171) on both sides, and a baffle (174) is provided in the middle of the push groove (171), and a number of waist-shaped holes are provided on the baffle (174); the baffle (174) divides the push groove (171) into an inner groove and an outer groove, and the outer groove is connected to the outer surface of the limiting plate (107); a push plate (172) and a pressure plate (173) are provided in the outer groove, and both the push plate (172) and the pressure plate (173) are provided with inclined surfaces, and the push plate (172) and the pressure plate (173) are provided with inclined surfaces. The inclined surfaces of the push plate (172) and the pressure plate (173) are in contact, and the movement directions of the push plate (172) and the pressure plate (173) are perpendicular; the push plate (172) is in contact with the arc plate (162); the side of the pressure plate (173) is provided with several connecting shafts (175), and the connecting shafts (175) pass through the waist-shaped hole into the inner groove; the inner wall of the inner groove is provided with several thread wheels (176), the number of thread wheels (176) is the same as that of the waist-shaped hole, and the position corresponds one-to-one with the waist-shaped hole, and the thread wheels (176) are provided on one side of the top of the waist-shaped groove; the top of the limiting plate (107) is also provided with several pulleys (177), and the pulleys (177) are provided on one side of the push groove (171); several thread rings (178) are also provided on the opposite surfaces of the two limiting plates (107); The handle (109) is provided with several pull rings (191) around its perimeter. Each pull ring (191) is provided with a pull rope. One end of the pull rope passes through a wire ring (178), a pulley (177), and a wire wheel (176) in sequence before being connected to a connecting shaft (175). The stabilizing mechanism (2) includes a buffer box (201), a buffer seat (202), an input flange (203), and an output flange (204); the top of the buffer box (201) is connected to the buffer seat (202); the input flange (203) and the output flange (204) are respectively located on two opposite sides of the buffer box (201), and the position of the input flange (203) is higher than that of the output flange (204); The buffer box (201) is provided with several partitions (211), and the partitions (211) leave gaps on both sides of the buffer box (201) to form a serpentine tube structure inside the buffer box (201); the input flange (203) is located between the two partitions (211) closest to the top of the buffer box (201). The buffer seat (202) includes a connecting seat (221), a sleeve (222), a sealing plate (223), a drive shaft (224), a drive ring (225), a transmission shaft (226), a rotation shaft (227), and a piston (228). The connecting seat (221) is a cylindrical structure, installed on the top of the buffer box (201), and communicating with the buffer box (201). A sealing plate (223) is provided inside the connecting seat (221). The sleeve (222) passes through the connecting seat (221) and the sealing plate (223), and a sleeve plate is provided at the bottom of the sleeve (222). Two fixing rings are provided between the sleeve plate and the sealing plate (223). The drive ring (225) is a ring-shaped tooth structure, and the teeth are provided on the inner side of the drive ring (225). The drive ring (225) is installed between the two fixing rings. The drive ring (225) and the connecting seat (221) are rotatably engaged; the drive shaft (224) is located on one side of the sleeve (222) and passes through the top surface of the sealing plate (223) and the connecting seat (221), and the drive shaft (224) meshes with the drive ring (225); the transmission shaft (226) is arranged opposite to the drive shaft (224) about the sleeve (222), and the transmission shaft (226) also meshes with the drive ring (225); the transmission shaft (226) meshes with the rotating shaft (227), and the rotating shaft (227) is rotatably engaged with the piston (228); the surface of the sealing plate (223) is provided with a plug hole, a sleeve is provided in the plug hole, the piston (228) moves in the sleeve, and the sleeve is also provided with a notch on the side near the sleeve; the top of the connecting seat (221) is also provided with an air hole (229); The distance adjustment mechanism (3) includes a mounting housing (301), an input shaft (302), an output shaft (303), a threaded cylinder (304), a side ring (305), a limiting sleeve (306), a threaded rod (307), a drive disc (308), and a crank handle (309); the input shaft (302), output shaft (303), threaded cylinder (304), side ring (305), limiting sleeve (306), threaded rod (307), and drive disc (308) are all installed inside the mounting housing (301); the input shaft (302) has the same structure as the output shaft (303), and one end of the input shaft (302) is provided with a toothed sleeve, which meshes with the toothed sleeve of the output shaft (303); the input shaft (302) has two side rings (305) on its side. Limiting sleeves (306) are sleeved on both sides of the side rings (305). The limiting sleeves (306) are double-layer waist-shaped ring plate structures. The side of the limiting sleeves (306) away from the side rings (305) is fixedly connected to the threaded cylinder (304). The threaded cylinder (304) is a cylindrical structure. The threaded cylinder (304) has threads inside. The threaded rod (307) is set inside the threaded cylinder (304) and is threaded with the threaded cylinder (304) to form a screw structure. One end of the threaded rod (307) is provided with a bevel gear, which meshes with the drive disc (308). The crank (309) is inserted into the interior of the mounting shell (301) and connected to the shaft of the drive disc (308). The pull-out bracket (104) has a locking groove on one side, and a locking rod (141) is provided in the locking groove. One end of the locking rod (141) is rotatably engaged with the pull-out bracket (104), and the side of the locking rod (141) is in frictional engagement with the side wall of the locking groove, and the bottom surface of the locking rod (141) is in frictional engagement with the pull-out bracket (104).

2. The vibration damping and stabilizing device for a centrifugal pump according to claim 1, characterized in that, The ends of the input shaft (302) and the output shaft (303) away from the gear sleeve both pass through the mounting housing (301), and both ends are provided with bevel gears.

3. The vibration damping and stabilizing device for a centrifugal pump according to claim 2, characterized in that, It also includes a fixing frame, which is connected to the output adjustment mechanism (1), the stabilization mechanism (2) and the distance adjustment mechanism (3).

4. A vibration damping and stabilizing device for a centrifugal pump according to claim 3, characterized in that, When the pawl (161) is in a stationary state in the limiting frame (106), the line connecting the two endpoints of the arc plate (162) is in an inclined state.

5. A vibration damping and stabilizing device for a centrifugal pump according to claim 4, characterized in that, The shape and size of the sleeve plate are adapted to the inner diameter of the connecting seat (221), and the sleeve plate and the connecting seat (221) slide together.

6. A centrifugal pump, characterized in that, Including the shock-absorbing and stabilizing device for centrifugal pumps as described in any one of claims 1-5.

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