CN213928902U

CN213928902U - Vertical multistage centrifugal pump vibration damping mount

Info

Publication number: CN213928902U
Application number: CN202022266630.7U
Authority: CN
Inventors: 王忠洲
Original assignee: Dalian Vacen Pumps Co ltd
Current assignee: Dalian Vacen Pumps Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-08-10
Anticipated expiration: 2030-10-13

Abstract

The utility model relates to a centrifugal pump technical field, and disclose a vertical multistage centrifugal pump vibration damping mount, the on-line screen storage device comprises a base, the top surface swing joint of base has vertical multistage centrifugal pump, be provided with locking mechanism between the top of base and vertical multistage centrifugal pump's the bottom, the buffer board has been cup jointed in the inboard activity at base top, the top swing joint of buffer board is in vertical multistage centrifugal pump's bottom surface, the bottom surface fixed mounting of buffer board both sides has first damper, first damper's bottom fixed mounting is in the inboard of base bottom, fixed mounting has the second damper between the inboard at the middle part of buffer board bottom surface and base middle part. The utility model discloses an inside main damping spring who sets up separately of four first damper, vibrations when the vertical multistage centrifugal pump operation is accepted to the cooperation buffer board to utilize the function of the reciprocal elastic shrinkage in main damping spring pressurized back, cushion and weaken vibrations, form first heavy shock attenuation protection mechanism.

Description

Vertical multistage centrifugal pump vibration damping mount

Technical Field

The utility model relates to a centrifugal pump technical field specifically is a vertical multistage centrifugal pump vibration damping mount.

Background

The multistage centrifugal pump is a medium conveying device which flows in a flowing medium from the root of a blade rotating shaft, the medium obtains centrifugal force by means of high-speed rotating blades to generate high pressure and flows out of a pressure relief opening, the multistage centrifugal pump integrates more than two pumps with the same function together, a fluid channel structure shows that the medium pressure relief opening of a first stage is communicated with an inlet of a second stage, the medium pressure relief opening of the second stage is communicated with an inlet of a third stage, and the multistage centrifugal pump is formed by the mechanism connected in series in such a way, and the multistage centrifugal pump has the significance of improving set pressure.

But the base of current multistage centrifugal pump is mostly the slab structure, and simple structure lacks corresponding bradyseism nature structure, can not reduce the vibrations effort that multistage centrifugal pump work produced, and functional relatively poor is to above-mentioned problem, and this application provides a vertical multistage centrifugal pump vibration damping mount.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a vertical multistage centrifugal pump vibration damping mount has solved the problem that above-mentioned background art provided.

The utility model provides a following technical scheme: the utility model provides a vertical multistage centrifugal pump vibration damping mount, includes the base, the top surface swing joint of base has vertical multistage centrifugal pump, be provided with locking mechanism between the top of base and vertical multistage centrifugal pump's the bottom, the buffer board has been cup jointed in the inboard activity at base top, the top swing joint of buffer board is in vertical multistage centrifugal pump's bottom surface, the bottom surface fixed mounting of buffer board both sides has first damper, first damper's bottom fixed mounting is in the inboard of base bottom, fixed mounting has the second damper between the middle part of buffer board bottom surface and the inboard at base middle part.

The choice, second damper's inside is including first damping oil cylinder, and the fixed cover in one side of first damping oil cylinder bottom has connect the intercommunication pipe, the fixed cover in the other end of intercommunication pipe has connect the second damping oil cylinder, the equal fixed connection in bottom surface of second damping oil cylinder and first damping oil cylinder is on the inner wall of base bottom, the inboard joint at first damping oil cylinder top has the piston piece, the top surface fixedly connected with of piston piece receives the pressure pole, the middle part joint that receives the pole is in the inboard at first damping oil cylinder top, the surface activity that receives the pole middle part has cup jointed the sealing washer, the bottom surface fixed connection of sealing washer is at the top surface of first damping oil cylinder, the top fixed connection that receives the pole is in the bottom surface of buffer board, second damper's reverse side is provided with the reinforcement frame.

Carefully, the reinforcing frame is fixedly sleeved on the inner side of the middle part of the base, the reinforcing frame is of two symmetrical triangular structures, and weight reduction grooves are formed in the reinforcing frame.

Carefully, first damper's inside is including main damping spring, and the equal fixedly connected with mounting panel in main damping spring's both ends, two the screw has all been cup jointed in the inboard activity of mounting panel both sides, the inside of the one end threaded connection of screw at the base.

Carefully, locking mechanism's inside is including the bolt, and the one end of bolt runs through the top of base and the mutual swing joint's of vertical multistage centrifugal pump bottom part and has the nut in the surperficial threaded connection of one end, the bottom surface swing joint of nut is on the surface of vertical multistage centrifugal pump bottom, the first compression spring of top surface fixedly connected with of nut both sides, the top fixedly connected with movable block of first compression spring, the top surface swing joint of movable block is at the terminal surface of bolt one end.

Carefully selecting, be provided with four first damper and two second damper between the inboard of the bottom surface of vertical multistage centrifugal pump and base, and four first damper and two second damper all use the central point of base as the benchmark mutual symmetry.

Carefully selecting, base I shape structure, and the both sides of base bottom have seted up the mounting hole.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. the utility model discloses an inside main damping spring who sets up separately of four first damper, vibrations when the vertical multistage centrifugal pump operation is accepted to the cooperation buffer board to utilize the function of the reciprocal elastic shrinkage in main damping spring pressurized back, cushion and weaken vibrations, form first heavy shock attenuation protection mechanism.

2. The utility model discloses a vibrations that produce when vertical multistage centrifugal pump operation is accepted in step to the inside pressure pole cooperation buffer board that sets up separately of two second damper, then synchronous pushing down piston piece compression first damping oil section of thick bamboo inside shock attenuation oil of placing, compress the inside shock attenuation oil of first damping oil section of thick bamboo to the inside of second damping oil section of thick bamboo through the intercommunication pipe, and after the piston piece resets under above-mentioned first damper's effect, the inside backward flow to first damping oil section of thick bamboo of the inside many play shock attenuation oil rethread of second damping oil section of thick bamboo rethread intercommunication pipe, utilize the reciprocating resistance that produces through first damping oil section of thick bamboo and intercommunication pipe of shock attenuation oil to reach the effect of shock attenuation energy dissipation from this, form the second and heavily cushion the protection mechanism.

3. The utility model discloses an inside first compression spring of locking mechanical system and movable block form and connect buffer structure, cushion the impact force that the locking piece received of bolt and nut combination, further improve base and vertical multistage centrifugal pump connection stability and reliability.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a rear view of the structure of the present invention;

FIG. 3 is a schematic sectional view of a second damping mechanism of the present invention;

FIG. 4 is an enlarged schematic view of the point A in the structure of FIG. 1 of the present invention;

fig. 5 is an enlarged schematic view of the position B in the structure diagram 2 of the present invention.

In the figure: 1. a base; 2. a vertical multistage centrifugal pump; 3. a locking mechanism; 31. a bolt; 32. a nut; 33. a first compression spring; 34. a movable block; 4. a first damper mechanism; 41. a main damping spring; 42. mounting a plate; 43. a screw; 5. a second damper mechanism; 51. a first damping oil cylinder; 52. an interconnecting pipe; 53. a second damping oil cylinder; 54. a piston block; 55. a pressure receiving rod; 56. a seal ring; 6. a buffer plate; 7. mounting holes; 8. a reinforcing frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a vertical multistage centrifugal pump vibration damping mount comprises a base 1, a base 1 is of an i-shaped structure, mounting holes 7 are formed in two sides of the bottom of the base 1, the mounting holes 7 provide abdicating conditions for mounting the base 1 and a subsequent placing surface, and are convenient for installation operation of workers, the top surface of the base 1 is movably connected with the vertical multistage centrifugal pump 2, four first vibration damping mechanisms 4 and two second vibration damping mechanisms 5 are arranged between the bottom surface of the vertical multistage centrifugal pump 2 and the inner side of the base 1, the four first vibration damping mechanisms 4 and the two second vibration damping mechanisms 5 are symmetrical to each other by taking the central point of the base 1 as a reference, the four first vibration damping mechanisms 4 and the two second vibration damping mechanisms 5 are of a structure which is arranged subsequently, and are matched with the base 1 to realize comprehensive vibration damping protection of the vertical multistage centrifugal pump 2, a locking mechanism 3 is arranged between the top of the base 1 and the bottom of the vertical multistage centrifugal pump 2, the locking mechanism 3 comprises a bolt 31 inside, one end of the bolt 31 penetrates through the top of the base 1 and the mutually movably connected part at the bottom of the vertical multi-stage centrifugal pump 2, a nut 32 is in threaded connection with the surface of one end, the bottom surface of the nut 32 is movably connected with the surface at the bottom of the vertical multi-stage centrifugal pump 2, the top surfaces of the two sides of the nut 32 are fixedly connected with a first compression spring 33, the top end of the first compression spring 33 is fixedly connected with a movable block 34, the top surface of the movable block 34 is movably connected with the end surface at one end of the bolt 31, the nut 32 and the bolt 31 inside the locking mechanism 3 are convenient for the base 1 and the vertical multi-stage centrifugal pump 2 to be quickly installed and fixed, the first compression spring 33 and the movable block 34 inside the locking mechanism 3 form a connection buffer structure, the impact force applied to the locking member combined by the bolt 31 and the nut 32 is buffered, and the connection stability and reliability of the base 1 and the vertical multi-stage centrifugal pump 2 are further improved, the inner side of the top of the base 1 is movably sleeved with a buffer plate 6, the top of the buffer plate 6 is movably connected with the bottom surface of the vertical multistage centrifugal pump 2, the bottom surfaces of two sides of the buffer plate 6 are fixedly provided with a first damping mechanism 4, the inside of the first damping mechanism 4 comprises a main damping spring 41, two ends of the main damping spring 41 are fixedly connected with a mounting plate 42, the inner sides of two sides of the two mounting plates 42 are movably sleeved with screws 43, one end of each screw 43 is in threaded connection with the inside of the base 1, the main damping springs 41 respectively arranged inside the four first damping mechanisms 4 are utilized to match the buffer plate 6 to bear the vibration during the operation of the vertical multistage centrifugal pump 2, and the function of reciprocating elastic shrinkage after the main damping spring 41 is pressed is utilized to buffer and weaken the vibration, the first heavy damping protection effect is realized, the bottom of the first damping mechanism 4 is fixedly arranged on the inner side of the bottom of the base 1, a second damping mechanism 5 is fixedly arranged between the middle part of the bottom surface of the buffer plate 6 and the inner side of the middle part of the base 1, a first damping oil cylinder 51 is arranged in the second damping mechanism 5, an interconnecting pipe 52 is fixedly sleeved on one side of the bottom of the first damping oil cylinder 51, a second damping oil cylinder 53 is fixedly sleeved on the other end of the interconnecting pipe 52, the bottom surfaces of the second damping oil cylinder 53 and the first damping oil cylinder 51 are fixedly connected on the inner wall of the bottom of the base 1, a piston block 54 is clamped on the inner side of the top of the first damping oil cylinder 51, a pressure rod 55 is fixedly connected on the top surface of the piston block 54, the middle part of the pressure rod 55 is clamped on the inner side of the top of the first damping oil cylinder 51, a sealing ring 56 is movably sleeved on the surface of the middle part of the pressure rod 55, the bottom surface of the sealing ring 56 is fixedly connected on the top surface of the first damping oil cylinder 51, the top end of the pressure rod 55 is fixedly connected on the bottom surface of the buffer plate 6, a reinforcing frame 8 is arranged on the reverse side of the second damping mechanism 5, the two compression rods 55 arranged in the second damping mechanisms 5 are matched with the buffer plate 6 to synchronously bear the vibration generated during the operation of the vertical multistage centrifugal pump 2, then the piston block 54 is synchronously pressed down to compress the shock-absorbing oil placed in the first shock-absorbing oil cylinder 51, the shock-absorbing oil in the first shock-absorbing oil cylinder 51 is compressed into the second shock-absorbing oil cylinder 53 through the communicating pipe 52, after the piston block 54 is reset under the action of the first damping mechanism 4, the excessive shock-absorbing oil in the second shock-absorbing oil cylinder 53 flows back into the first shock-absorbing oil cylinder 51 through the communicating pipe 52, therefore, the purpose of shock absorption and energy dissipation is achieved by the resistance generated by the reciprocating motion of the shock-absorbing oil through the first shock-absorbing oil cylinder 51 and the communicating pipe 52, the reinforcing frame 8 is fixedly sleeved on the inner side of the middle part of the base 1, the reinforcing frame 8 is of two symmetrical triangular structures, a weight reduction groove is formed in the reinforcing frame 8, the structural strength of the base 1 can be further improved by the structural arrangement of the reinforcing frame 8, so that the reliability of the whole device is improved, and the dead weight of the device can be effectively reduced by arranging the weight reduction grooves under the premise that the structural strength of the reinforcing frame 8 per se meets the standard, so that the flexibility is improved.

The working principle is as follows: when in use, the vibration of the vertical multistage centrifugal pump 2 during operation is damped and buffered by the first damping mechanism 4 and the second damping mechanism 5 respectively, specifically, the damping plate 6 transmits the operation vibration of the vertical multistage centrifugal pump 2 to the main damping springs 41 respectively arranged in the four first damping mechanisms 4, after the main damping springs 41 are pressed, the main damping springs are compressed due to the characteristics of the materials, and after the maximum stroke which can be generated by the compression pressure is reset, so that the reciprocating elastic contraction continuously buffers and weakens the vibration energy, the first heavy damping protection operation is carried out, meanwhile, the compression rods 55 respectively arranged in the two second damping mechanisms 5 are matched with the damping plate 6 to synchronously bear the vibration generated during the operation of the vertical multistage centrifugal pump 2, then the piston block 54 is synchronously pressed down to compress the damping oil arranged in the first damping oil cylinder 51, the damping oil in the first damping oil cylinder 51 is compressed to the second damping oil cylinder 53 through the communicating pipe 52, after the piston block 54 is reset by the first damper mechanism 4, the extra damping oil in the second damping oil cylinder 53 flows back to the first damping oil cylinder 51 through the inside of the communicating pipe 52, so that the damping oil is used to achieve the damping and energy dissipation effects by the resistance generated by the first damping oil cylinder 51 and the communicating pipe 52 in a reciprocating manner, and the second damping and buffering protection operation is performed to form the double damping and buffering protection effect in cooperation with the first damping and buffering protection operation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Simultaneously in the utility model discloses an in the drawing, fill the pattern and just do not do any other injecions for distinguishing the picture layer.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a vertical multistage centrifugal pump vibration damping mount, includes base (1), its characterized in that: the top surface swing joint of base (1) has vertical multistage centrifugal pump (2), be provided with locking mechanism (3) between the top of base (1) and the bottom of vertical multistage centrifugal pump (2), buffer board (6) have been cup jointed in the inboard activity at base (1) top, the top swing joint of buffer board (6) is in the bottom surface of vertical multistage centrifugal pump (2), the bottom surface fixed mounting of buffer board (6) both sides has first damper (4), the bottom fixed mounting of first damper (4) is in the inboard of base (1) bottom, fixed mounting has second damper (5) between the middle part of buffer board (6) bottom surface and the inboard at base (1) middle part.

2. The vertical multistage centrifugal pump vibration damping mount according to claim 1, characterized in that: the inside of second damper (5) is including first shock attenuation oil cylinder (51), and the fixed cover in one side of first shock attenuation oil cylinder (51) bottom has been connect each other siphunculus (52), the fixed cover in the other end of each other siphunculus (52) has been connected second shock attenuation oil cylinder (53), the equal fixed connection in the inner wall of base (1) bottom of second shock attenuation oil cylinder (53) and first shock attenuation oil cylinder (51) bottom surface is on, the inboard joint at first shock attenuation oil cylinder (51) top has piston block (54), the top surface fixed connection of piston block (54) has compressed rod (55), the inboard at first shock attenuation oil cylinder (51) top of middle part joint of compressed rod (55), sealing washer (56) have been cup jointed in the surface activity at compressed rod (55) middle part, the bottom surface fixed connection of sealing washer (56) is at the top surface of first shock attenuation oil cylinder (51), the top fixed connection of compressed rod (55) is in the bottom surface of buffer board (6), and a reinforcing frame (8) is arranged on the reverse side of the second damping mechanism (5).

3. The vertical multistage centrifugal pump vibration damping mount according to claim 2, characterized in that: the reinforcing frame (8) is fixedly sleeved on the inner side of the middle part of the base (1), the reinforcing frame (8) is of two symmetrical triangular structures, and weight reduction grooves are formed in the reinforcing frame (8).

4. The vertical multistage centrifugal pump vibration damping mount according to claim 1, characterized in that: the inside of first damper (4) is including main damping spring (41), and mounting panel (42) of the equal fixedly connected with in both ends of main damping spring (41), two screw (43) have been cup jointed in the equal activity of inboard of mounting panel (42) both sides, the inside of one end threaded connection at base (1) of screw (43).

5. The vertical multistage centrifugal pump vibration damping mount according to claim 1, characterized in that: the inside of locking mechanical system (3) is including bolt (31), and the one end of bolt (31) runs through the top of base (1) and the mutual swing joint's of vertical multistage centrifugal pump (2) bottom part and has nut (32) in the surperficial threaded connection of one end, the bottom surface swing joint of nut (32) is on the surface of vertical multistage centrifugal pump (2) bottom, the first compression spring (33) of top surface fixedly connected with of nut (32) both sides, the top fixedly connected with movable block (34) of first compression spring (33), the top surface swing joint of movable block (34) is at the terminal surface of bolt (31) one end.

6. The vertical multistage centrifugal pump vibration damping mount according to claim 1, characterized in that: four first damping mechanisms (4) and two second damping mechanisms (5) are arranged between the bottom surface of the vertical multistage centrifugal pump (2) and the inner side of the base (1), and the four first damping mechanisms (4) and the two second damping mechanisms (5) are symmetrical to each other by taking the central point of the base (1) as a reference.

7. The vertical multistage centrifugal pump vibration damping mount according to claim 1, characterized in that: the base (1) is of an I-shaped structure, and mounting holes (7) are formed in two sides of the bottom of the base (1).