CN208595091U

CN208595091U - Pump shaft axial position regulating mechanism

Info

Publication number: CN208595091U
Application number: CN201820707413.7U
Authority: CN
Inventors: 汪卫平; 唐训民; 唐子; 唐子一; 平伟伟
Original assignee: ANHUI KAITE PUMP Co Ltd
Current assignee: ANHUI KAITE PUMP Co Ltd
Priority date: 2018-05-11
Filing date: 2018-05-11
Publication date: 2019-03-12
Anticipated expiration: 2028-05-11

Abstract

The utility model discloses a kind of pump shaft axial position regulating mechanisms, including pump shaft, pump shaft one end is connected with impeller, there is the first and second bearing along its axially spaced-apart arrangement on pump shaft, first bearing is located at the sliding cooperation that first bearing is constituted in the mounting hole of bearing block along pump shaft axial direction, adjusts the displacement that locking unit adjusts first bearing axial direction.First bearing is adjusted to move axially along pump shaft, adjust the end-play of second bearing, to reduce the gap value of impeller of pump outer end face Yu pump housing inner wall, it can guarantee that the lift of pump is in scope of design in this way, so that it is guaranteed that pump reach actual condition needed for lift, no replacement is required impeller reduces the use cost of later period pump.

Description

Pump shaft axial position regulating mechanism

Technical field

The present invention relates to pump manufacturing technology field, specially a kind of pump shaft axial position regulating mechanisms.

Background technique

In the operational process of pump, when especially conveying medium biggish containing particulate matter, as shown in Figure 1,1 one end of pump shaft It is connected with impeller of pump 2, since 2 outer end face of impeller of pump and 3 inner wall of the pump housing are clearance fit, and convey and contains biggish Jie of particulate matter The case where matter causes the outer end surface wear of impeller of pump 2, and the gap 4 for 2 outer end face of impeller of pump and 3 inner wall of the pump housing occur becomes larger, leads It causes the lift of pump to be lower than design value, and is unable to reach lift needed for actual condition, generally by the impeller more renewed, so not The use cost of pump is improved only, and impeller replacement is more troublesome.

Summary of the invention

Pump shaft axial position can be adjusted the object of the present invention is to provide one kind to ensure in impeller of pump outer end face and the pump housing The mechanism of wall surface gap value.

To achieve the goals above, the technical solution of use are as follows: a kind of pump shaft axial position regulating mechanism, including pump shaft, Pump shaft one end is connected with impeller, there is the first and second bearing along its axially spaced-apart arrangement on pump shaft, and first bearing is located at the peace of bearing block The sliding cooperation for constituting first bearing in hole along pump shaft axial direction is filled, the displacement that locking unit adjusts first bearing axial direction is adjusted.

The technical effect of the application are as follows: adjust first bearing and moved axially along pump shaft, that is, adjust the axial play of second bearing Gap can guarantee that the lift of pump is in scope of design to reduce the gap value of impeller of pump outer end face Yu pump housing inner wall in this way, So that it is guaranteed that pump reach actual condition needed for lift, no replacement is required impeller reduces the use cost of later period pump.

Detailed description of the invention

Fig. 1 is cross-sectional view of the invention；

Fig. 2 be Fig. 1 in M at structure enlarged diagram；

Fig. 3 is the axial view of bearing holder (housing, cover) of the present invention.

Specific embodiment

A kind of pump shaft axial position regulating mechanism, including pump shaft 1,1 one end of pump shaft are connected with impeller 2, have on pump shaft 10 along it First and second bearing 10,21 of axially spaced-apart arrangement, first bearing 10, which is located in the mounting hole of bearing block 20, constitutes first bearing 10 The sliding cooperation axial along pump shaft 1, adjusts locking unit and adjusts the axial displacement of first bearing 10.

In above scheme, since the inside and outside circle of second bearing 21 has end-play, when 2 outer end face of impeller of pump and 3 inner wall of the pump housing When the gap 4 in face becomes larger, adjusts first bearing 10 and moved axially along pump shaft 1, that is, the end-play of second bearing 21 is adjusted, to subtract The gap value of small 2 outer end face of impeller of pump and 3 inner wall of the pump housing can guarantee that the lift of pump is in scope of design in this way, thus Ensure to pump reach actual condition needed for lift, no replacement is required impeller reduces the use cost of later period pump.

The first bearing 10 is fitted in bearing holder (housing, cover) 11, and bearing holder (housing, cover) 11, which is located in the mounting hole of bearing block 20, constitutes bearing The sliding cooperation axial along pump shaft 1 of set 11, the outer end of bearing holder (housing, cover) 11 is ring flange 111, constitutes the adjusting spiral shell for adjusting locking unit Bolt 31 passes through the screw hole on ring flange 111 and is resisted against on the end face of bearing block 20, and clamping screw 32 locks bearing holder (housing, cover) 11 and axis Hold seat 20.

Worker will be adjusted in 31 precession ring flange 111 of bolt to the precession amount of setting first, then pass through clamping screw 32 Ring flange 111 and bearing block 20 are locked, bolt 31 is adjusted at this time and is resisted against on the end face of bearing block 20, when needing to adjust pump shaft 10 Axial position when, unscrew clamping screw 32, worker will be adjusted in 31 precession ring flange 111 of bolt to the precession amount of setting, be locked Tight bolt 32 locks ring flange 111 and bearing block 20, completes the easy to adjust quick of 10 axial position of pump shaft.

It is equipped with first bearing 10 in the mounting hole of described 20 one end of bearing block, is pressed in 20 other end mounting hole of bearing block Second bearing 21 and the end and the pump housing 3 are connected by bolt.

The adjusting bolt 31 is three, adjusts bolt 31 and arranges along the circumferential uniform intervals of ring flange 111, in locking, Guarantee that 111 disk of ring flange is concordant with 20 end face of bearing block, it is ensured that uniform stressed after ring flange 111 is locked.

In order to guarantee that 111 disk of ring flange and bearing block 20 are reliably fixed, the clamping screw 32 is at least three, locking Bolt 32 is along the circumferential uniform intervals arrangement of ring flange 111.

Extraneous dirt enters 20 internal corrosion pump shaft of bearing block, the outer wall and bearing block 20 of the bearing holder (housing, cover) 11 in order to prevent Inner wall of the hole installing between be provided with sealing ring 40.

Claims

1. a kind of pump shaft axial position regulating mechanism, including pump shaft (1), pump shaft (1) one end is connected with impeller (2), it is characterised in that: There is the first and second bearing (10,21) along its axially spaced-apart arrangement on pump shaft (1), first bearing (10) is located at bearing block (20) The sliding that first bearing (10) are constituted in mounting hole along pump shaft (1) axial direction cooperates, and adjusts locking unit and adjusts first bearing (10) Axial displacement.

2. pump shaft axial position regulating mechanism according to claim 1, it is characterised in that: first bearing (10) press fitting In bearing holder (housing, cover) (11), it is axial along pump shaft (1) that bearing holder (housing, cover) (11) is located at composition bearing holder (housing, cover) (11) in the mounting hole of bearing block (20) Sliding cooperation, the outer end of bearing holder (housing, cover) (11) is ring flange (111), constitutes and adjusts the adjusting bolt (31) of locking unit and pass through method Screw hole on blue disk (111) is simultaneously resisted against on the end face of bearing block (20), and clamping screw (32) locks bearing holder (housing, cover) (11) and bearing Seat (20).

3. pump shaft axial position regulating mechanism according to claim 1, it is characterised in that: described bearing block (20) one end First bearing (10) are equipped in mounting hole, second bearing (21) is pressed in bearing block (20) other end mounting hole and the end with The pump housing (3) is connected by bolt.

4. pump shaft axial position regulating mechanism according to claim 2, it is characterised in that: the adjusting bolt (31) is three It is a, bolt (31) are adjusted along the circumferential uniform intervals arrangement of ring flange (111).

5. pump shaft axial position regulating mechanism according to claim 2, it is characterised in that: the clamping screw (32) is at least It is three, clamping screw (32) is along the circumferential uniform intervals arrangement of ring flange (111).

6. pump shaft axial position regulating mechanism according to claim 1, it is characterised in that: the outer wall of the bearing holder (housing, cover) (11) Sealing ring (40) are provided between the inner wall of the hole installing of bearing block (20).