CN211648601U

CN211648601U - Centrifugal pump

Info

Publication number: CN211648601U
Application number: CN201922435567.2U
Authority: CN
Inventors: 张本好; 唐星梅; 张平; 赵德龙; 高云录; 叶宗惠; 杜长城
Original assignee: Anshan Yongfeng Hot Dip Galvanizing Co ltd
Current assignee: Anshan Yongfeng Hot Dip Galvanizing Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-09
Anticipated expiration: 2029-12-30

Abstract

The utility model belongs to the technical field of centrifugal pump shock attenuation equipment, especially, be a centrifugal pump, to the relatively poor and relatively poor problem of fixed effect of operational stability that leads to of current centrifugal pump shock attenuation effect, the following scheme is put forward now, and it includes box and bottom plate, placed the centrifugal pump body on the bottom half inner wall, fixed mounting has the one end of two stands on the inner wall of box top, and the other end outside movable sleeve of two stands is equipped with same top board, and the top board top is seted up threaded hole, and threaded hole installs the lead screw, and the mounting hole has all been seted up to two stand one sides, and equal rotation installs the cross axle in two mounting holes, and equal fixed mounting has bevel gear on the one end that. The utility model has the advantages of reasonable design, can carry out shock attenuation protection to the centrifugal pump when carrying out fixed mounting to the centrifugal pump, guarantee the stability and the fixed reliability of centrifugal pump operation, convenient to use.

Description

Centrifugal pump

Technical Field

The utility model relates to a centrifugal pump shock attenuation equipment technical field especially relates to a centrifugal pump.

Background

The centrifugal pump is a pump for conveying a liquid by centrifugal force generated when an impeller rotates. The basic structure of the centrifugal pump is composed of six parts, namely an impeller, a pump body, a pump shaft, a bearing, a sealing ring and a stuffing box, wherein the impeller is a core part of the centrifugal pump, the rotating speed of the impeller is higher than the output force of the impeller, blades on the impeller play a main role, and the impeller passes through a static balance experiment before being assembled. The inner and outer surfaces on the impeller need to be smooth to reduce frictional losses from the water flow. The pump body is also called pump shell, and is the main body of the water pump. The pump shaft is connected with the motor through the coupling, and the torque of the motor is transmitted to the impeller, so that the pump shaft is a main component for transmitting mechanical energy. The sliding bearing uses transparent oil as lubricant and is added to the oil level line. The stuffing box mainly comprises stuffing, a water seal ring, a stuffing cylinder, a stuffing gland and a water seal pipe. The stuffing box mainly has the function of sealing a gap between the pump shell and the pump shaft, so that water in the pump is prevented from flowing to the outside and air outside is prevented from entering the pump.

The support of common axial subdivision centrifugal pump supports for the landing leg, because the pump case is constantly patted to the liquid of carrying, make the centrifugal pump produce vibrations, the pump case of vibrations makes the pump shaft also produce vibrations simultaneously, the pump shaft is rotatory under the state of vibrations, the life of pump shaft has been reduced, the mechanical seal who still can lead to the centrifugal pump simultaneously damages, bring very big inconvenience for the user, and generally carry out fixed mounting to the centrifugal pump through the bolt, the vibrations that produce can lead to the bolt not hard up during the centrifugal pump operation, influence the installation of centrifugal pump, therefore we have proposed a centrifugal pump and are used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing centrifugal pump has poor damping effect, leads to the defects of poor operation stability and poor fixing effect, and provides a centrifugal pump.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a centrifugal pump comprises a box body and a bottom plate, wherein a centrifugal pump body is placed on the inner wall of the bottom of the box body, one ends of two stand columns are fixedly installed on the inner wall of the top of the box body, the outer sides of the other ends of the two stand columns are movably sleeved with a same upper pressing plate, threaded holes are formed in the tops of the upper pressing plate, screw rods are installed in the threaded holes in a threaded manner, mounting holes are formed in one sides of the two stand columns, transverse shafts are rotatably installed in the two mounting holes, bevel gears are fixedly installed at the mutually close ends of the two transverse shafts and on the screw rods, the bevel gears on the two sides are meshed with the bevel gears on the screw rods, circular holes are formed in the two sides of the box body, sleeves are rotatably installed in the two circular holes, chain wheels are fixedly installed at the mutually, the screw rod is installed to two threaded holes equal screw thread, and the equal fixed mounting of one end that two screw rods are close to each other has the side pressure board, and two side pressure boards all with bottom half inner wall sliding connection, two side pressure boards and top board all with centrifugal pump body outside swing joint, two spouts have all been opened to one side that bottom plate and box are close to each other, and the equal sliding mounting of four spouts has the slip table, and four slip table bottoms that are located the top all rotate the one end that is connected with the pull rod through the hinge, and the other end of four pull rods all rotates with the slip table that is located the correspondence of below through the hinge to be connected, and the equal fixedly connected with damping spring's in one side that two slip tables that are located same spout keep away from each other one.

Preferably, the intercommunicating pores have all been seted up to four pull rod front sides, and same connecting axle is installed to four intercommunicating pore internal rotations, and the equal fixed mounting in both ends has the limiting plate around the connecting axle, strengthens the connection effect to the pull rod.

Preferably, four slip table tops that lie in the top in eight slip tables and four slip table bottoms that lie in the below all set up fluted and roll connection have the ball, and eight balls all with the spout inner wall roll connection that corresponds reduce the frictional resistance between slip table and the spout.

Preferably, the four sliding grooves are internally and fixedly provided with guide rods, and the two sliding tables positioned in the same sliding groove are sleeved outside the same guide rod in a sliding manner to limit the sliding tables.

Preferably, the top end of the screw rod extends to the top of the box body, a handle is fixedly mounted on the top end of the screw rod, the handle is in a butterfly shape and is in sliding connection with the top of the box body, the screw rod is limited, and the screw rod is conveniently controlled to rotate.

Preferably, the fixing plates are fixedly mounted on two sides of the base plate, and two threaded mounting holes are formed in the tops of the two fixing plates, so that the device is convenient to mount.

In the utility model, the centrifugal pump drives the lead screw to rotate through the control handle, the lead screw drives the upper pressure plate to move downwards through the cooperation with the upper pressure plate so as to fix the centrifugal pump body in the longitudinal direction, meanwhile, the lead screw drives the two transverse shafts to rotate through the transmission between the bevel gears, the two transverse shafts respectively drive the two sleeves to rotate through the transmission between the two chain wheels, the two sleeves respectively drive the two side pressure plates to move towards one side close to each other through the cooperation with the screw rod so as to fix the centrifugal pump body in the transverse direction, and therefore the fixation with the centrifugal pump body is realized;

in the utility model, when the centrifugal pump body operates, the centrifugal pump body transmits the vibration to the box body, and the transverse vibration of the centrifugal pump body is relieved through the damping spring, and the vertical vibration of the box body is converted into the transverse motion of the sliding table through the matching of the sliding table and the pull rod, and the damping spring caches the sliding table, so that the vibration of the centrifugal pump body is relieved, and the damping protection is carried out on the centrifugal pump body;

the utility model has the advantages of reasonable design, can carry out shock attenuation protection to the centrifugal pump when carrying out fixed mounting to the centrifugal pump, guarantee the stability and the fixed reliability of centrifugal pump operation, convenient to use.

Drawings

Fig. 1 is a schematic structural view of a centrifugal pump according to the present invention;

fig. 2 is a schematic structural diagram of a section a-a of the centrifugal pump provided by the present invention.

In the figure: 1. a box body; 2. a base plate; 3. a centrifugal pump body; 4. a column; 5. an upper pressure plate; 6. a screw rod; 7. a horizontal axis; 8. a bevel gear; 9. a sprocket; 10. a sleeve; 11. a screw; 12. side pressing plates; 13. a chute; 14. a sliding table; 15. a pull rod; 16. a damping spring; 17. a guide bar; 18. a ball bearing; 19. a connecting shaft; 20. a limiting plate; 21. a fixing plate; 22. a handle.

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.

Referring to fig. 1-2, a centrifugal pump comprises a box body 1 and a bottom plate 2, a centrifugal pump body 3 is placed on the inner wall of the bottom of the box body 1, one end of two upright posts 4 is fixedly installed on the inner wall of the top of the box body 1, the outer side of the other end of the two upright posts 4 is movably sleeved with a same upper pressing plate 5, threaded holes are formed in the top of the upper pressing plate 5, screw rods 6 are installed in the threaded holes, mounting holes are formed in one sides of the two upright posts 4, transverse shafts 7 are rotatably installed in the two mounting holes, bevel gears 8 are fixedly installed at the ends, close to each other, of the two transverse shafts 7 and the screw rods 6, the bevel gears 8 on the two sides are meshed with the bevel gears 8 on the screw rods 6, circular holes are formed in the two sides of the box body 1, sleeves 10, the two chain wheels 9 positioned on the same side are provided with the same chain in a transmission way, one side of each of the two sleeves 10 is provided with a threaded hole, the threaded holes are internally provided with screw rods 11 in a threaded way, the mutually close ends of the two screw rods 11 are fixedly provided with side pressure plates 12, the two side pressure plates 12 are in sliding connection with the inner wall of the bottom of the box body 1, the two side pressure plates 12 and the upper pressure plate 5 are movably connected with the outer side of the centrifugal pump body 3, the mutually close sides of the bottom plate 2 and the box body 1 are respectively provided with two sliding grooves 13, the four sliding grooves 13 are respectively provided with a sliding table 14 in a sliding way, the bottoms of the four sliding tables 14 positioned above are respectively rotatably connected with one end of a pull rod 15 through hinges, the other ends of the four pull rods 15 are respectively rotatably connected with the corresponding sliding table 14 positioned below through, the other ends of the eight damping springs 16 are fixedly connected with the inner wall of the corresponding sliding groove 13.

The utility model discloses in, the intercommunicating pore has all been seted up to four pull rod 15 front sides, and same connecting axle 19 is installed to four intercommunicating pore internal rotations, and the equal fixed mounting in both ends has limiting plate 20 around the connecting axle 19, strengthens the connection effect to pull rod 15.

The utility model discloses in, four slip table 14 tops that lie in the top in eight slip tables 14 and four slip table 14 bottoms that lie in the below all set up fluted and roll connection have ball 18, eight ball 18 all with the 13 inner wall roll connections of spout that correspond, reduce the frictional resistance between slip table 14 and the spout 13.

The utility model discloses in, equal fixed mounting has guide bar 17 in four spout 13, and two slip table 14 sliding sleeves that are located same spout 13 establish in same guide bar 17 outside, carry on spacingly to slip table 14.

The utility model discloses in, 6 tops of lead screw extend to 1 top of box and fixed mounting have handle 22, handle 22 set up to the butterfly and with 1 top sliding connection of box, carry on spacingly and make things convenient for control lead screw 6 to rotate to lead screw 6.

The utility model discloses in, the equal fixed mounting in 2 both sides of bottom plate has fixed plate 21, and two threaded mounting holes have all been seted up at two fixed plate 21 tops, and the convenience is to the installation of device.

In the utility model, when in use, the screw rod 6 is driven to rotate by the control handle 22, the screw rod 6 drives the upper pressing plate 5 to move downwards by matching with the upper pressing plate 5 to fix the centrifugal pump body 3 in the longitudinal direction, meanwhile, the screw rod 6 drives the two cross shafts 7 to rotate by the transmission between the bevel gears 8, the two cross shafts 7 respectively drive the two sleeves 10 to rotate by the transmission between the two sprockets, the two sleeves 10 respectively drive the two side pressing plates 12 to move towards one side close to each other by matching with the screw rod 11 to fix the centrifugal pump body 3 in the transverse direction, thereby realizing the fixation with the centrifugal pump body 3, when the centrifugal pump body 3 runs, the centrifugal pump body 3 transmits the vibration to the box body 1, the damping spring 16 relieves the transverse vibration of the centrifugal pump body 3, and the up-down vibration of the box body 1 is converted into the transverse motion of the sliding table 14 by matching with the sliding table, the damping spring 16 buffers the slide table 14, thereby relieving the vibration of the centrifugal pump body 3, and thus shock-absorbing-protecting the centrifugal pump body 3.

Claims

1. The utility model provides a centrifugal pump, which comprises a box body (1) and a bottom plate (2), the utility model is characterized in that, placed centrifugal pump body (3) on box (1) bottom inner wall, the one end of two stands (4) is fixed mounting on box (1) top inner wall, the other end outside activity cover of two stands (4) is equipped with same top board (5), top board (5) top is seted up threaded hole, screw hole internal thread installs lead screw (6), the mounting hole has all been seted up to two stand (4) one sides, all rotate in the two mounting holes and install cross axle (7), all fixed mounting has bevel gear (8) on the one end and lead screw (6) that two cross axles (7) are close to each other, bevel gear (8) that are located both sides all mesh with bevel gear (8) on lead screw (6), the circular port has all been seted up to box (1) both sides, sleeve, the chain wheel (9) is fixedly arranged at one end, away from each other, of each of the two transverse shafts (7) and one end, close to each other, of each of the two sleeves (10), the chain wheel (9) is arranged on the two chain wheels (9) positioned on the same side in a transmission manner, threaded holes are formed in one sides of the two sleeves (10), screw rods (11) are arranged in the threaded holes in a threaded manner, side pressing plates (12) are fixedly arranged at one ends, close to each other, of the two screw rods (11), the two side pressing plates (12) are connected with the inner wall of the bottom of the box body (1) in a sliding manner, the two side pressing plates (12) and the upper pressing plate (5) are movably connected with the outer side of the centrifugal pump body (3), two sliding grooves (13) are formed in one side, close to each other, of the bottom plate (2) and the box body (1), sliding tables (14), the other ends of the four pull rods (15) are rotatably connected with corresponding sliding tables (14) located below through hinges, one ends of two sliding tables (14) located in the same sliding groove (13) and far away from each other are fixedly connected with damping springs (16), and the other ends of the eight damping springs (16) are fixedly connected with the inner wall of the corresponding sliding groove (13).

2. The centrifugal pump according to claim 1, wherein the four tie rods (15) are provided with communication holes at the front sides thereof, the four communication holes are internally and rotatably provided with the same connecting shaft (19), and the front end and the rear end of the connecting shaft (19) are fixedly provided with limiting plates (20).

3. The centrifugal pump according to claim 1, wherein the tops of four sliding tables (14) positioned above and the bottoms of four sliding tables (14) positioned below in the eight sliding tables (14) are provided with grooves and are connected with the balls (18) in a rolling manner, and the eight balls (18) are connected with the inner walls of the corresponding sliding grooves (13) in a rolling manner.

4. A centrifugal pump according to claim 1, characterized in that guide rods (17) are fixedly mounted in each of the four sliding grooves (13), and two sliding tables (14) located in the same sliding groove (13) are slidably sleeved on the outer side of the same guide rod (17).

5. A centrifugal pump according to claim 1, characterized in that the top end of the screw rod (6) extends to the top of the box body (1) and is fixedly provided with a handle (22), and the handle (22) is in butterfly shape and is connected with the top of the box body (1) in a sliding way.

6. The centrifugal pump according to claim 1, wherein the bottom plate (2) is fixedly provided with fixing plates (21) at both sides, and two threaded mounting holes are formed at the tops of the two fixing plates (21).