CN207975051U - A kind of detachable Piping Centrifugal Pumps rotor part - Google Patents

Abstract

The utility model is related to a kind of detachable Piping Centrifugal Pumps rotor part, including pump shaft, one end on pump shaft is equipped with shaft coupling, bearing assembly, pump cover, water pilot bearing component and impeller successively to the other end；Bearing assembly includes bearing gland, bearing body, bearing and bearing holder (housing, cover), and one end of pump cover is connect with bearing body, and pump cover is internally provided with the mechanical seal being sleeved on pump shaft；Water pilot bearing component includes water pilot bearing seat, water pilot bearing and water pilot bearing set, and one end of water pilot bearing seat and the other end of pump cover connect, and the other end is abutted with impeller.The utility model is easy to disassemble, can integrally be shifted out maintenance or replace spare part；Using the duplex bearing support construction of rolling bearing and water pilot bearing, extend the service life of pump；Overall structure is simple.

Description

A kind of detachable Piping Centrifugal Pumps rotor part

Technical field

The utility model is related to pump technical fields, and in particular to a kind of detachable Piping Centrifugal Pumps rotor part.

Background technology

Conventional SLB detachables Piping Centrifugal Pumps is vertical structure, by the pump housing, rotor part, electric machine support, Y2 standard electrics Machine, shaft coupling（Pump connection, Electricity Federation, intermediate connection）Five most of compositions.Wherein pump rotor component is using independent bearing body, pump shaft branch Support, bearing body is interior to be equipped with a rolling bearing, for bearing axial force, radial load.Rotor part assembles integral portion with pump cover Part is connected to by pump cover on the pump housing.It can integrally remove, be not required to detaching pipelines, the pump housing, motor, just be torn open to realize, such as Fig. 1 It is shown.However use a this rolling bearing structure rotor part can there is following drawbacks：Due to the rotor of the structure The built-in only rolling bearing of component bearing body, that is for pump shaft only there are one supporting point, rotor part will not when running Stablize, generates vibration, friction, or even stuck situation occur；Pump will produce larger axial force and radial load at runtime, all only It is born by a bearing, the damage of bearing certainly will be accelerated.So, the stationarity, reliability and service life of pump operation It will cannot ensure.

Utility model content

The utility model is in view of the above-mentioned problems, provide a kind of detachable Piping Centrifugal Pumps rotor part.

The purpose of this utility model can be realized by following technical proposals：A kind of detachable Piping Centrifugal Pumps rotor portions Part, using rolling bearing plus water pilot bearing support construction；Including pump shaft, one end on the pump shaft is equipped with connection successively to the other end Axis device, bearing assembly, pump cover, water pilot bearing component and impeller；The shaft coupling shrink-on is in pump shaft end, key transmission；The axis Bearing assembly includes bearing gland, bearing body, bearing and bearing holder (housing, cover), and bearing gland, which is placed on bearing body, and the two is connected is placed on pump On axis, bearing is set in the cavity that bearing gland and bearing body are constituted, and outer circle and the bearing body of bearing are engaged, bearing Inner circle is installed bearing holder (housing, cover) and is placed on pump shaft together by bearing holder (housing, cover)；One end of the pump cover is connect with bearing body, pump cover it is interior Portion is equipped with the mechanical seal being sleeved on pump shaft；The water pilot bearing component includes water pilot bearing seat, water pilot bearing and water pilot bearing Set, one end of the water pilot bearing seat and the other end of pump cover connect, and the other end of water pilot bearing seat is abutted with impeller, water guide shaft It holds and is installed in water pilot bearing seat, outer circle and the water pilot bearing seat of water pilot bearing are engaged, and the inner circle of water pilot bearing installs water Guide shaft bearing sleeve and by water pilot bearing set be placed on pump shaft together；The impeller set is mounted in the other end of pump shaft, and key is driven and leads to Impeller nut is crossed to fix；Wherein, bearing is rolling bearing.

Compared with prior art, the utility model has the advantage of：1, when overhauling or replacing spare part, flexibly side is dismantled Just, the nut of lower coupler, pump cover need to only be unloaded, you can entire rotor part is removed, even matching high power motor pump group, inspection It repaiies or replaces that spare part is also relatively easy, lifting appliance and the personnel of profession are not needed, to save maintenance time and cost；

2, using the duplex bearing support construction of rolling bearing and water pilot bearing, traveling comfort and reliability are enhanced, Extend the service life of pump；

3, overall structure is simple, easy to implement, compensates for the deficiency of traditional SLB easy decomposing pumps rotor part structure, can be fully Meet onsite application requirement.

Description of the drawings

Fig. 1 is the structural schematic diagram of existing rotor part.

Fig. 2 is the structural schematic diagram of the utility model.

It is marked in figure as follows：

1 pump shaft, 2 shaft couplings, 3 bearing glands, 4 bearings, 5 bearing holder (housing, cover)s, 6 bearing bodies, 7 pump covers, 8 mechanical seals, 9 impellers, 10 impeller nuts, 11 water pilot bearing seats, 12 water pilot bearings, 13 water pilot bearing sets.

Specific implementation mode

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing, those skilled in the art is made to become apparent from How ground understanding puts into practice the utility model.Although describing the utility model in conjunction with its preferred embodiment, these Embodiment only illustrates, rather than limits the scope of the utility model.

Referring to Fig. 2, detachable Piping Centrifugal Pumps rotor part, using rolling bearing plus water pilot bearing support construction；Including Pump shaft 1, one end on the pump shaft 1 be equipped with successively to the other end shaft coupling 2, bearing assembly, pump cover 7, water pilot bearing component and Impeller 9；2 shrink-on of the shaft coupling is in 1 end of pump shaft, key transmission；4 component of the bearing includes bearing gland 3, bearing body 6, axis 4 and bearing holder (housing, cover) 5 are held, bearing gland 3, which is placed on bearing body 6, and the two is connected is placed on pump shaft 1, and bearing 4 is set to bearing pressure In the cavity that lid 3 and bearing body 6 are constituted, outer circle and the bearing body 6 of bearing 4 are engaged, and the inner circle of bearing 4 installs bearing holder (housing, cover) 5 And it is placed on together on pump shaft 1 by bearing holder (housing, cover) 5；One end of the pump cover 7 is connect with bearing body 6, and being internally provided with for pump cover 7 is sleeved on Mechanical seal 8 on pump shaft 1；4 component of water channel bearing includes water pilot bearing seat 11, water pilot bearing 12 and water pilot bearing set 13, one end of the water pilot bearing seat 11 is connect with the other end of pump cover 7, and the other end of water pilot bearing seat 11 is abutted with impeller 9, Water pilot bearing 12 is installed in water pilot bearing seat 11, and outer circle and the water pilot bearing seat 11 of water pilot bearing 12 are engaged, water guide shaft It holds 12 inner circle installation water pilot bearing set 13 and is placed on together on pump shaft 1 by water pilot bearing set 13；The impeller 9 is sleeved on pump The other end of axis 1, key are driven and are fixed by impeller nut 10.

In the specific implementation, the bearing 4 is rolling bearing.

When assembly, the utility model is connected to by pump cover 7 on the pump housing, and can integrally be removed, and detaching pipelines, pump are not required to Body, motor are just torn open to realize.

The utility model improves on former SLB easy decomposing pumps rotor part and increases a water pilot bearing 12, wherein former SLB The structure of easy decomposing pump rotor part is referring to Fig. 1, and one end of the pump cover 7 in Fig. 1 is connect with bearing body 6, the other end and leaf of pump cover 7 Wheel 9 abuts.And then the utility model makes rotor part become to be supported jointly by a rolling bearing 4 and a water pilot bearing 12 Structure, makes that pump operation is steady, stress is balanced, to which the reliability of pump and service life are protected.

It should be pointed out that for the utility model through absolutely proving, can also have a variety of transformation and the implementation of remodeling Scheme, it is not limited to the specific embodiment of the above embodiment.Above-described embodiment as just the utility model explanation, and It is not limitations of the present invention.In short, the scope of protection of the utility model should be including those for ordinary skill It obviously converts or substitutes and retrofit for personnel, and be determined by the appended claims.

Claims (1)

1. a kind of detachable Piping Centrifugal Pumps rotor part, it is characterised in that add water pilot bearing support construction using rolling bearing； Including pump shaft, one end on the pump shaft to the other end be equipped with successively shaft coupling, bearing assembly, pump cover, water pilot bearing component and Impeller；The shaft coupling shrink-on is in pump shaft end, key transmission；The bearing assembly includes bearing gland, bearing body, bearing and axis Bearing sleeve, bearing gland, which is placed on bearing body, and the two is connected is placed on pump shaft, and bearing is set to bearing gland and bearing body structure At cavity in, outer circle and the bearing body of bearing are engaged, and the inner circle of bearing installation bearing holder (housing, cover) and are covered together by bearing holder (housing, cover) In on pump shaft；One end of the pump cover is connect with bearing body, and pump cover is internally provided with the mechanical seal being sleeved on pump shaft；The water Guide shaft bearing assembly includes water pilot bearing seat, water pilot bearing and water pilot bearing set, one end of the water pilot bearing seat and pump cover it is another One end connects, and the other end of water pilot bearing seat is abutted with impeller, and water pilot bearing is installed in water pilot bearing seat, outside water pilot bearing Circle is engaged with water pilot bearing seat, and the inner circle installation water pilot bearing of water pilot bearing covers and is placed on pump together by water pilot bearing set On axis；The impeller set is mounted in the other end of pump shaft, and key is driven and is fixed by impeller nut；Wherein, bearing is rolling bearing.