阅读说明：本技术 一种具有减震装置的船用离心泵 (Marine centrifugal pump with damping device ) 是由 丛小青 袁丹青 于 2019-11-26 设计创作，主要内容包括：本发明公开了一种具有减震装置的船用离心泵,包括底座、减震单元和主体单元；底座：所述底座的右侧面边缘阵列有通孔；减震单元：所述减震单元安装在底座的顶面；主体单元：所述主体单元通过螺钉螺纹安装在减震单元的右侧,通过螺钉穿过底座右侧面的通孔与船只表面的螺纹孔螺纹紧固,使本具有减震装置的船用离心泵更稳固,并且本具有减震装置的离心泵为立式离心泵,这种立式离心泵占地面积小,而且维修方便,减震单元的主要作用是减缓船只的颠簸,本具有减震装置的船用离心泵,不但占地面积小,维修方便,而且运行稳定,振动小,使用范围广。(The invention discloses a marine centrifugal pump with a damping device, which comprises a base, a damping unit and a main body unit, wherein the base is provided with a plurality of damping holes; base: through holes are arrayed at the edge of the right side face of the base; a damping unit: the damping unit is arranged on the top surface of the base; a main body unit: the main part unit passes through the screw thread and installs the right side at the shock attenuation unit, the through-hole that passes the base right flank through the screw and the screw hole screw-thread fastening on ship surface, it is more firm to make this marine centrifugal pump with damping device, and this centrifugal pump with damping device is vertical centrifugal pump, this kind of vertical centrifugal pump area is little, easy maintenance moreover, the primary function of shock attenuation unit slows down jolting of ship, this marine centrifugal pump with damping device, not only area is little, easy maintenance, and the operation is stable moreover, vibrate for a short time, wide application range.)

1. A marine centrifugal pump with damping device which characterized in that: comprises a base (1), a damping unit (2) and a main body unit (3);

base (1): through holes are arrayed at the edge of the right side surface of the base (1);

damping unit (2): the damping unit (2) is arranged on the right side surface of the base (1);

main unit (3): the main body unit (3) is installed on the right side of the damping unit (2) through screw threads.

2. A centrifugal pump for ships having a damping device according to claim 1, characterized in that: the damping unit (2) comprises an upper fixing ring (21), four dampers (22), a first spring (23), a second spring (24), four lower fixing rings (25) and four mounting plates (26), one ends of the four shock absorbers (22) are respectively fixed at the four corners of the right side surface of the base (1), the other ends are respectively fixed at the four corners of the left side surface of the mounting plate (26), the upper fixing ring (21) is sleeved on the right end side surface of the shock absorber (22), the lower fixing ring (25) is sleeved on the left end side surface of the shock absorber (22), the first spring (23) is sleeved on the side surface of the shock absorber (22) between the upper fixing ring (21) and the lower fixing ring (25), the second spring (24) is sleeved outside the first spring (23), the right side surface of the mounting plate (26) is provided with a mounting hole, and the mounting hole at the right end of the fixed bracket (4) and the mounting hole at the top surface of the mounting plate (26) are fastened through bolt and nut threads.

3. A centrifugal pump for ships having a damping device according to claim 2, characterized in that: main part unit (3) contain impeller nut (32), stopping piece (33), impeller (34), pump shaft (37) and motor (38), the right-hand member in fixing bracket (4) is fixed through bolt and nut in motor (38), the output shaft of motor (38) and the one end fixed connection of pump shaft (37), the other end side of pump shaft (37) is equipped with spacing collar, keyway and screw thread from right to left side in proper order, impeller (34) cover is on the spacing collar left side of pump shaft (37), stopping piece (33) cover is in left pump shaft (37) side of impeller (34), impeller nut (32) threaded connection is in the other end screw thread department of pump shaft (37).

4. A centrifugal pump for ships having a damping device according to claim 3, characterized in that: the main body unit (3) further comprises a pump cover (35), the pump cover (35) is installed in a groove body at the left end of the fixing bracket (4), and a through hole is formed in the middle of the pump cover (35).

5. A centrifugal pump for ships having a damping device according to claim 3, characterized in that: the main body unit (3) further comprises a mechanical sealing ring (36), the side face of the mechanical sealing ring (36) is sleeved in a through hole in the middle of the pump cover (35), the through hole in the middle of the mechanical sealing ring (36) is rotatably connected with the side face of the pump shaft (37), and the mechanical sealing ring (36) is fixed in a threaded hole in the top face of the pump cover (35) through screw threads.

6. A centrifugal pump for ships having a damping device according to claim 3, characterized in that: the main body unit (3) further comprises a pump body shell (31), the right end edge of the pump body shell (31) is installed at the left end of the fixing bracket (4) through bolt and nut threads, the side face of the pump body shell (31) is symmetrically provided with two interfaces, the interfaces are communicated with the inside of the pump body shell (31), and the left end of the pump cover (35) is in sealing fit with the right end of the inside of the pump body shell (31).

7. A centrifugal pump for ships having a damping device according to claim 3, characterized in that: still include sealed pad (5) and sealed pad two (6), sealed pad one (5) set up between mechanical seal circle (36) and pump cover (35), sealed pad two (6) set up between pump body shell (31) and mounting bracket (4).

8. A centrifugal pump for ships having a damping device according to claim 3, characterized in that: the impeller pump is characterized by further comprising a fixed key (7), wherein the fixed key (7) is fixed in a key groove at the other end of the pump shaft (37), and the key groove of a through hole in the middle of the impeller (34) is matched with the fixed key (7).

9. A centrifugal pump for ships having a damping device according to claim 3, characterized in that: the motor is characterized by further comprising a baffle (8), wherein the baffle (8) is fixed at a heat dissipation opening of the motor (38) through three fixing rods.

Technical Field

The invention relates to the technical field of marine pumps with damping devices, in particular to a marine centrifugal pump with a damping device.

Background

With the development of modern shipbuilding industry, the number of newly built large-tonnage ships is more and more, and in order to ensure navigation safety, the large-tonnage ships must be provided with a domestic water system, a fire-fighting water system and a ballast water system according to specifications, wherein core equipment of the water systems is a marine centrifugal pump;

the marine pump is a machine which is used for increasing the pressure or potential energy of liquid and liquid materials on a ship to enable the liquid and the liquid materials to flow, the pump is generally needed to be used for conveying the liquid to a position with higher position, farther distance and higher pressure, the pump can also be used for generating high-pressure liquid to supply the liquid for hydraulic transmission, and the marine pump is generally driven by an electric motor or other prime movers;

most of the existing marine pumps do not have a damping device, the damping effect of the existing damping device is not ideal, the existing marine pumps do not have the damping device up and down, and the existing marine pumps cannot work normally due to the fact that the existing marine pumps have faults because the damping device is not arranged inside the existing marine pumps, the existing side pump bodies generally occupy a large area, and the existing marine pumps can influence the flow rate change in the pumps when swinging and inclining, are uneven in operation and vibrate greatly.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, provides the marine centrifugal pump with the damping device, has small floor area, convenient maintenance, stable operation, small vibration and wide application range, and can effectively solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a marine centrifugal pump with a damping device comprises a base, a damping unit and a main body unit;

base: through holes are arrayed at the edge of the right side face of the base;

a damping unit: the damping unit is arranged on the right side surface of the base;

a main body unit: the main body unit is installed at the right side of the shock absorption unit through screw threads.

The through-hole that passes the base right flank through the screw and the screw hole screw-thread fastening on ship surface, make this marine centrifugal pump with damping device more firm, and this centrifugal pump with damping device is vertical centrifugal pump, this kind of vertical centrifugal pump area is little, easy maintenance, the main function of shock attenuation unit is the jolt that slows down the ship, the protection pump body does not receive the damage, the main part of main part unit is the power that provides invariant, do not receive the ship and sway, the influence when jolting, and the operation is stable, vibrations are little, wide application scope.

Furthermore, the shock absorption unit comprises four upper fixed rings, four shock absorbers, a first spring, a second spring, a lower fixed ring and a mounting plate, one ends of the four shock absorbers are respectively fixed at the four corners of the right side surface of the base, the other ends of the four shock absorbers are respectively fixed at the four corners of the left side surface of the mounting plate, the upper fixing ring is sleeved on the right end side surface of the shock absorber, the lower fixing ring is sleeved on the left end side surface of the shock absorber, the spring is sleeved on the side surface of the shock absorber between the upper fixing ring and the lower fixing ring, the spring is sleeved on the outer side of the first spring, the right side surface of the mounting plate is provided with a mounting hole, the mounting hole of the right end of the fixing bracket and the mounting hole of the top surface of the mounting plate are fastened through the bolt and nut threads, the damping unit is damped through the first spring and the second spring, the damping effect is good, and the service life of the marine centrifugal pump with the damping device is prolonged.

Further, the main part unit contains impeller nut, stopping piece, impeller, pump shaft and motor, the motor passes through bolt and nut to be fixed at the right-hand member of mounting bracket, the output shaft of motor and the one end fixed connection of pump shaft, the other end side of pump shaft is equipped with spacing collar, keyway and screw thread from the right side to a left side in proper order, the impeller cover is in the spacing collar left side of pump shaft, the stopping piece cover is in the left pump shaft side of impeller, impeller nut threaded connection is in the other end screw thread department of pump shaft, and the primary function of main part unit is that provide invariable power, and then provide invariable velocity of flow, makes this marine centrifugal pump with damping device operate stably, and vibrations are little.

Further, the main body unit further comprises a pump cover, the pump cover is installed in the groove body at the left end of the fixing bracket, a through hole is formed in the middle of the pump cover, and the pump cover is used for bearing the mechanical sealing ring.

Furthermore, the main body unit further comprises a mechanical sealing ring, the side face of the mechanical sealing ring is sleeved in a through hole in the middle of the pump cover, the through hole in the middle of the mechanical sealing ring is rotatably connected with the side face of the pump shaft, the mechanical sealing ring is fixed in a threaded hole in the top face of the pump cover through a screw thread, and the mechanical sealing ring is mainly used for well sealing the space between the pump cover and the pump shaft.

Further, the main body unit further comprises a pump body shell, the right end edge of the pump body shell is installed at the left end of the fixing bracket through bolt and nut threads, the two interfaces are symmetrically arranged on the side face of the pump body shell and communicated with the inside of the pump body shell, the left end of the pump cover is in sealing fit with the right end of the inside of the pump body shell, and the pump body shell is matched with the pump cover to form a sealed cavity so that the interface on the side face of the pump body shell generates suction.

The pump cover is characterized by further comprising a first sealing gasket and a second sealing gasket, wherein the first sealing gasket is arranged between the mechanical sealing ring and the pump cover, the second sealing gasket is arranged between the pump body shell and the fixing bracket, and the first sealing gasket and the second sealing gasket mainly play a sealing role.

Further, still include the fixed key, the fixed key is fixed in the keyway of the pump shaft other end, and the keyway and the fixed key cooperation of through-hole in the middle of the impeller, and the fixed key's main function prevents that the impeller from skidding.

Further, still include the baffle, the baffle passes through three dead lever to be fixed in the thermovent department of motor, and the main effect of baffle prevents inside debris, impurity and water etc. enter into the thermovent of motor, leads to the motor to damage.

Compared with the prior art, the invention has the beneficial effects that: this marine centrifugal pump with damping device has following benefit:

1. the marine centrifugal pump with the damping device is more stable through the threaded fastening of the through hole on the right side surface of the provided base and the threaded hole on the surface of a ship, and the centrifugal pump with the damping device is a vertical centrifugal pump which has small floor area and is convenient to maintain;

2. the marine centrifugal pump with the damping device has the advantages that the damping unit is provided for mainly slowing down the jolt of a ship and protecting a pump body from being damaged, the main body unit is used for mainly providing constant power and is not influenced by the jolt and the sway of the ship, and the marine centrifugal pump with the damping device is stable in operation, small in vibration and wide in application range;

3. the marine centrifugal pump with the damping device has the advantages of small occupied area, convenience in maintenance, stability in operation, small vibration and wide application range.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a main unit according to the present invention;

fig. 3 is a schematic structural view of the shock-absorbing unit of the present invention.

In the figure: the pump comprises a base 1, a damping unit 2, an upper fixing ring 21, a damper 22, a first spring 23, a second spring 24, a lower fixing ring 25, a mounting plate 26, a main body unit 3, a pump body shell 31, an impeller nut 32, a backstop sheet 33, an impeller 34, a pump cover 35, a mechanical sealing ring 36, a pump shaft 37, a motor 38, a fixing bracket 4, a first sealing gasket 5, a second sealing gasket 6, a fixing key 7 and a baffle 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a marine centrifugal pump with a damping device comprises a base 1, a damping unit 2 and a main body unit 3;

base 1: through holes are arrayed at the edge of the right side surface of the base 1;

the damping unit 2: the damping unit 2 is arranged on the right side surface of the base 1;

the main body unit 3: the body unit 3 is screw-mounted on the right side of the cushion unit 2 by screws.

Pass the through-hole of the 1 right flank of base and the screw hole screw-thread fastening on ship surface through the screw, make this marine centrifugal pump with damping device more firm, and this centrifugal pump with damping device is vertical centrifugal pump, this kind of vertical centrifugal pump area is little, easy maintenance, the primary function of shock attenuation unit 2 is the jolt that slows down the ship, the protection pump body does not receive the damage, the primary function of main part unit 3 is the power that provides the invariant, do not receive the ship and sway, the influence when jolting, and the operation is stable, vibrations are little, wide application range.

The damping unit 2 comprises an upper fixing ring 21, four dampers 22, a first spring 23, a second spring 24, a lower fixing ring 25 and a mounting plate 26, wherein the number of the dampers 22 is four, and the one end of four bumper shock absorbers 22 is fixed respectively in the right flank four corners of base 1, the other end is fixed respectively in the left flank four corners of mounting panel 26, go up retainer plate 21 cover in the right-hand member side of bumper shock absorber 22, lower retainer plate 25 covers in the left end side of bumper shock absorber 22, spring 23 cover is in the side of bumper shock absorber 22 between last retainer plate 21 and lower retainer plate 25, spring two 24 covers in the outside of spring one 23, the right flank of mounting panel 26 is equipped with the mounting hole, the mounting hole of the right-hand member of mounting bracket 4 and the mounting hole of the top surface of mounting panel 26 pass through bolt and nut screw-thread fastening, damping unit 2 carries out the shock attenuation through spring one and spring two, the shock attenuation is effectual, the life of this marine centrifugal pump with damping device has been prolonged.

Main unit 3 contains impeller nut 32, the stopping piece 33, impeller 34, pump shaft 37 and motor 38, motor 38 passes through the bolt and nut to be fixed at the right-hand member of mounting bracket 4, the output shaft of motor 38 and the one end fixed connection of pump shaft 37, the other end side of pump shaft 37 is equipped with the spacing collar from right to left side in proper order, keyway and screw thread, impeller 34 overlaps in the spacing collar left side of pump shaft 37, stopping piece 33 covers in the left pump shaft 37 side of impeller 34, impeller nut 32 threaded connection is in the other end screw thread department of pump shaft 37, main unit 3's primary function is to provide invariable power, and then provide invariable velocity of flow, make this marine centrifugal pump with damping device operate stably, vibrations are little.

The main body unit 3 further includes a pump cover 35, the pump cover 35 is installed in the groove body at the left end of the fixing bracket 4, a through hole is provided in the middle of the pump cover 35, and the pump cover 35 is used for bearing a mechanical seal ring 36.

The main body unit 3 further comprises a mechanical sealing ring 36, the side face of the mechanical sealing ring 36 is sleeved in a through hole in the middle of the pump cover 35, the through hole in the middle of the mechanical sealing ring 36 is rotatably connected with the side face of the pump shaft 37, the mechanical sealing ring 36 is fixed in a threaded hole in the top face of the pump cover 35 through a screw thread, and the mechanical sealing ring 36 mainly plays a good sealing role between the pump cover 35 and the pump shaft 37.

The main body unit 3 further comprises a pump body shell 31, the right end edge of the pump body shell 31 is installed at the left end of the fixing bracket 4 through bolt and nut threads, the two interfaces are symmetrically arranged on the side face of the pump body shell 31 and communicated with the inside of the pump body shell 31, the left end of the pump cover 35 is in sealing fit with the right end of the inside of the pump body shell 31, the pump body shell 31 is matched with the pump cover 35 to form a sealed cavity, and the interface on the side face of the pump body shell 31 generates suction.

Still include sealed the pad 5 and sealed the pad two 6, sealed pad 5 sets up between mechanical seal 36 and pump cover 35, sealed pad two 6 sets up between pump body shell 31 and mounting bracket 4, sealed pad 5 and sealed pad two 6 mainly play sealed effect, still include fixed key 7, fixed key 7 is fixed in the keyway of the pump shaft 37 other end, and the keyway of the through-hole cooperates with fixed key 7 in the middle of impeller 34, and the main effect of fixed key 7 is to prevent that impeller 34 from skidding. Still include baffle 8, baffle 8 is fixed in the thermovent department of motor 38 through three dead lever, and baffle 8's main function prevents inside debris, impurity and water etc. enter into the thermovent of motor 38, leads to the motor to damage.

When in use: firstly, the device is installed, a base 1 is fixed on an installation surface of a ship body and is fastened by screws, then shock absorbers 22 are fixed at four corners of the right side of the base 1, then a lower fixing ring 25 is sleeved on the end part of the shock absorber 22, a first spring 23 and a second spring 24 are sleeved on the surface of the shock absorber 22, one end of the first spring 23 and one end of the second spring 24 are fixed on the side surface of the lower fixing ring 25, the other end of the first spring 23 and the second spring 24 are fixed on the side surface of an upper fixing ring 21, then an installation plate 26 is installed at the other end of the four shock absorbers 22, then the installation plate 26 and the side surface of a fixed bracket 4 are fixed, then a motor 38 is installed on the right side of the fixed bracket 4 through bolts and nuts, a mechanical sealing ring 36 is sleeved with a first sealing pad 5 and installed in the middle of a pump cover 35, one end of a pump shaft 37 is fixedly connected with an output shaft of the motor 38, the pump shaft, then the anti-back sheet 33 is sleeved, then the anti-back sheet is fixed by the impeller nut 32, the anti-back sheet is tilted by a screwdriver, the anti-back sheet 33 mainly prevents the impeller from being off-axis, finally the pump body shell 31 is installed on the fixing bracket 4, the installation is completed, then the external power supply is switched on for debugging, when the vibration damping unit 2 works, firstly the motor 38 rotates, then the motor 38 drives the pump shaft 37 to rotate, then the pump shaft 37 drives the impeller 34 to rotate, then water flow is pressed to an outlet at one end of the pump body shell 31 from an outlet at the other end by centrifugal force generated by the impeller 34, when the vibration damping unit 2 works, the gravity center of the marine centrifugal pump with the vibration damping device moves downwards, then the installation plate 26 moves downwards, the spring I23 and the spring II 24 compress to play a vibration damping role, and the vibration damper 22 plays a role in restraining rebound during rebound, the marine centrifugal, convenient maintenance, stable operation, small vibration and wide application range.

It should be noted that in the embodiment disclosed, the motor 38 is a Y-series three-phase asynchronous motor, and the shock absorber 22 is an ACE-series shock absorber according to size.

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.