Search

CN-224228923-U - Balance drum sleeve mechanism of multistage pump

CN224228923UCN 224228923 UCN224228923 UCN 224228923UCN-224228923-U

Abstract

The utility model discloses a multistage pump balance drum sleeve mechanism, wherein a pump shaft is arranged in a shell, one end of a balance drum is provided with a balance column, threaded holes are formed in the balance drum and the balance column in a penetrating mode, a first thread is formed in the side face of the pump shaft, the pump shaft is in threaded connection with the threaded holes, and a balance sleeve is arranged between the shell and the balance column. When the distance between the balance drum and the end face of the balance sleeve needs to be adjusted, the adjusting rod needs to be twisted, the adjusting rod drives the half gear to rotate, the half gear drives the first gear to rotate, the first gear drives the cam to rotate through the first rotating shaft, the base circle of the cam is separated from the arc-shaped adjusting groove, the flange of the cam is contacted with the arc-shaped adjusting groove, the bottom end of the rotation stopping rod is separated from the first thread, the balance drum can rotate on the pump shaft at the moment, and the distance between the balance drum and the end face of the balance sleeve is adjusted.

Inventors

  • MA YINGZHE
  • GAO JUN
  • QU YI
  • WANG KEYU
  • CHEN SIXUE
  • WEN YU
  • MENG LINGBO

Assignees

  • 大连罗斯泵业有限公司

Dates

Publication Date
20260512
Application Date
20250509

Claims (8)

  1. 1. The utility model provides a multistage pump balance drum cover mechanism, includes casing (1) and balance drum (3), the inside of casing (1) is provided with pump shaft (5), its characterized in that, the one end of balance drum (3) is provided with balance post (4), run through on balance drum (3) and the balance post (4) threaded hole (7), the side of pump shaft (5) is provided with first screw thread (8), pump shaft (5) with threaded hole (7) threaded connection, casing (1) with be provided with balance sleeve (2) between balance post (4), put thing groove (6) have been seted up to the side of balance drum (3), limit hole (30) have been seted up to the bottom of putting thing groove (6), be provided with in limit hole (30) and stop spin pole (9), be provided with the control in putting thing groove (6) stop spin pole (9) position variation's regulating part.
  2. 2. A multistage pump balance drum set mechanism according to claim 1, characterized in that the rotation stop rod (9) is slidably connected with the limit hole (30), and the bottom of the housing (1) is provided with a base (31).
  3. 3. The balance drum sleeve mechanism of the multistage pump according to claim 2, wherein the adjusting part comprises a second limiting seat (11) fixedly connected with the inner wall of the storage groove (6), a first limiting seat (10) is arranged on the side face of the rotation stopping rod (9), a first spring (13) is arranged between the first limiting seat (10) and the second limiting seat (11), and an adjusting mechanism for driving the rotation stopping rod (9) to move is arranged in the storage groove (6).
  4. 4. A multistage pump balance drum set mechanism according to claim 3, characterized in that the bottom of the second limit seat (11) is provided with a first limit rod (12), the first limit rod (12) penetrates through the second limit seat (11), and the first limit rod (12) is slidably connected with the first limit seat (10).
  5. 5. A multistage pump balance drum cover mechanism according to claim 3, characterized in that, adjustment mechanism is including setting up regulating block (14) of stopping spin pole (9) side, arc adjustment tank (15) have been seted up to the bottom of regulating block (14), the inner wall rotation of putting thing groove (6) is connected with first pivot (20), be provided with cam (18) on first pivot (20), cam (18) with arc adjustment tank (15) butt is provided with the control in putting thing groove (6) cam (18) pivoted adjusting part.
  6. 6. The balance drum sleeve mechanism of the multistage pump according to claim 5, wherein a plurality of rollers (17) are uniformly distributed in the arc-shaped adjusting groove (15), and the rollers (17) are rotatably connected with the arc-shaped adjusting groove (15) through a third rotating shaft (16).
  7. 7. The multistage pump balance drum sleeve mechanism according to claim 5, wherein the adjusting assembly comprises a second rotating shaft (27) rotatably connected with the inner wall of the storage groove (6), a half gear (28) is arranged on the second rotating shaft (27), a first gear (19) is arranged on the first rotating shaft (20), the first gear (19) is in meshed connection with the half gear (28), and an adjusting rod (26) is arranged on the side face of the half gear (28).
  8. 8. The multistage pump balance drum sleeve mechanism according to claim 7, wherein a positioning plate (21) is arranged on the inner wall of the storage groove (6), an arc-shaped plate (22) is arranged on the positioning plate (21), an arc-shaped chute (23) is formed in the arc-shaped plate (22), a transmission rod (25) is arranged on the side face of the adjusting rod (26), an adjusting ball (29) is arranged at the end portion of the transmission rod (25), the adjusting ball (29) is in sliding connection with the arc-shaped chute (23), an arc-shaped second spring (24) is arranged in the arc-shaped chute (23), and the adjusting ball (29) is fixedly connected with the second spring (24).

Description

Balance drum sleeve mechanism of multistage pump Technical Field The utility model relates to the technical field of multistage pumps, in particular to a multistage pump balance drum sleeve mechanism. Background The balancing drum is a device for balancing axial forces in a centrifugal pump, and is particularly suitable for use in a multistage centrifugal pump. The core function of the device is to counteract the axial thrust of the rotor caused by uneven pressure of the front and back of the impeller by the reverse force generated by the pressure difference, thereby protecting the bearing and improving the running stability of the device. The existing balance drum is generally connected with the pump shaft through keys, after equipment works for a long time, the position of the balance drum is easy to migrate, at the moment, the equipment is required to be corrected, more parts are required to be removed when the existing balance drum is corrected, so that the correction maintenance efficiency is low, and the applicability of the equipment is low. Disclosure of utility model The utility model aims to solve the problems and provides a balance drum sleeve mechanism of a multistage pump. In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a balanced drum cover mechanism of multistage pump, includes casing and balanced drum, the inside of casing is provided with the pump shaft, the one end of balanced drum is provided with the balance post, it has the screw hole to run through on balance drum and the balance post, the side of pump shaft is provided with first screw thread, the pump shaft with screw hole threaded connection, the casing with be provided with balanced cover between the balance post, the thing groove has been seted up to the side of balanced drum, the spacing hole has been seted up to the bottom of putting the thing groove, be provided with in the spacing hole and stop the dwang, be provided with the control in the thing groove stop the regulating part of dwang position variation. Preferably, the rotation stopping rod is in sliding connection with the limiting hole, and a base is arranged at the bottom of the shell. Preferably, the adjusting part comprises a second limiting seat fixedly connected with the inner wall of the storage groove, a first limiting seat is arranged on the side face of the rotation stopping rod, a first spring is arranged between the first limiting seat and the second limiting seat, and an adjusting mechanism for driving the rotation stopping rod to move is arranged in the storage groove. Preferably, a first limiting rod is arranged at the bottom of the second limiting seat, the first limiting rod penetrates through the second limiting seat, and the first limiting rod is in sliding connection with the first limiting seat. Preferably, the adjusting mechanism comprises an adjusting block arranged on the side face of the rotation stopping rod, an arc-shaped adjusting groove is formed in the bottom of the adjusting block, a first rotating shaft is connected with the inner wall of the storage groove in a rotating mode, a cam is arranged on the first rotating shaft and is in butt joint with the arc-shaped adjusting groove, and an adjusting assembly for controlling the cam to rotate is arranged in the storage groove. Preferably, a plurality of rollers are uniformly distributed in the arc-shaped adjusting groove, and the rollers are rotationally connected with the arc-shaped adjusting groove through a third rotating shaft. Preferably, the adjusting component comprises a second rotating shaft rotationally connected with the inner wall of the storage groove, a half gear is arranged on the second rotating shaft, a first gear is arranged on the first rotating shaft, the first gear is meshed with the half gear, and an adjusting rod is arranged on the side face of the half gear. Preferably, the inner wall of the storage groove is provided with a positioning plate, an arc-shaped plate is arranged on the positioning plate, an arc-shaped chute is formed in the arc-shaped plate, a transmission rod is arranged on the side face of the adjusting rod, an adjusting ball is arranged at the end part of the transmission rod and is in sliding connection with the arc-shaped chute, an arc-shaped second spring is arranged in the arc-shaped chute, and the adjusting ball is fixedly connected with the second spring. In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows: When the distance between the balance drum and the end face of the balance sleeve needs to be adjusted, the adjusting rod needs to be twisted, the adjusting rod drives the half gear to rotate, the half gear drives the first gear to rotate, the first gear drives the cam to rotate through the first rotating shaft, the base circle of the cam is separated from the arc-shaped adjusting groove, the flange of