CN202468354U

CN202468354U - Submerged pump

Info

Publication number: CN202468354U
Application number: CN2012200883932U
Authority: CN
Inventors: 汪卫平; 唐训民
Original assignee: ANHUI KAITE PUMP Co Ltd
Current assignee: ANHUI KAITE PUMP Co Ltd
Priority date: 2012-03-05
Filing date: 2012-03-05
Publication date: 2012-10-03
Anticipated expiration: 2022-03-05

Abstract

The utility model discloses a submerged pump, which comprises a pump coupler, a pump shaft, a bearing block, a pump shell, an impeller and a liquid outlet tube. A bearing block shaft is arranged between the pump coupler and the upper end of the pump shaft, the pump coupler is connected with the bearing block shaft, a bush, a sliding bearing outer ring, a sliding bearing inner ring, a submerged bearing gland and a pump cover are arranged at the lower end of the pump shaft, the sliding bearing inner ring is arranged on the pump shaft, the bush is arranged at the upper end of the sliding bearing inner ring, the impeller is arranged at the lower end of the sliding bearing inner ring, the sliding bearing outer ring is shorter than the sliding bearing inner ring, and the upper end of the sliding bearing outer ring is flush with the upper end of the sliding bearing inner ring. The submerged pump with the structure is wide in service range, and the service cost can be reduced for users.

Description

Under Water Pumps

Technical field

The utility model relates to pump, relates in particular to a kind of Under Water Pumps.

Background technique

Existing Under Water Pumps comprises motor, motor coupler, pump coupling, pump shaft, bearing support, pump case, impeller and drain pipe; Motor coupler is connected with the pump coupling; The pump coupling is connected with the upper end of pump shaft, and the lower end of pump shaft is connected through axle sleeve, filler and tightening nut with impeller.Such structure can only be carried neutral solution at normal temperatures, then can't use for various inorganic acids, organic acid, subtracting property solution.It is high temperature concentrated hydrochloric acid, sulfuric acid, hydrofluoric acid etc. that the medium of spent acid discharging is carried in automobiles such as large-scale iron and steel enterprise such as Baosteel, Shoudu Iron and Steel Co, Anshan iron and steel plant, household electrical appliances, the pickling of silicon steel cold-reduced sheet, very corrosive, temperature higher (80 ℃～100 ℃); Most metals and alloy all can not be as the materials useds of pump, and specific alloy can be used but the price spy is expensive, so must use nonmetal; But not metal corrosion-resisting is very strong; But physical property is unstable, is prone to expand with heat and contract with cold, and very easily causes the leakage at pump seal place; Under Water Pumps under the operating mode need rely on German import like this, and user's user cost is expensive.At present also do not have such Under Water Pumps, not only using scope is wide for it, and can reduce user's user cost.

The model utility content

The utility model technical problem to be solved is: a kind of Under Water Pumps is provided, and this kind Under Water Pumps not only using scope is wide, and can reduce user's user cost.

Solve this technical problem; The technological scheme of the utility model is: a kind of Under Water Pumps; Comprise pump coupling, pump shaft, bearing support, pump case, impeller and drain pipe, be provided with the bearing support axle between described pump coupling and the pump shaft upper end, described pump coupling is connected with the bearing support axle; Described pump shaft lower end is provided with lining, sliding bearing outer ring, sliding bearing inner ring, liquid lower bearing gland and pump cover; Described sliding bearing inner ring is loaded on the pump shaft, and the upper end of sliding bearing inner ring is a lining, and the lower end of sliding bearing inner ring is an impeller; The length of sliding bearing outer ring is less than the sliding bearing inner ring, and the upper end of sliding bearing outer ring is concordant with the upper end of sliding bearing inner ring.

Be provided with the fluorine rubber SEALING FITTING between described impeller and the lining.

The upper end of described pump shaft is provided with the labyrinth that together rotates with pump shaft.

The below of described pump case is provided with slips through the net.

The utility model Under Water Pumps adopts such structure, and not only using scope is wide, and can reduce user's user cost.

Description of drawings

Below in conjunction with accompanying drawing the utility model Under Water Pumps is done explanation in further detail;

Fig. 1 is the pump shaft upper end linkage structure schematic representation of the utility model Under Water Pumps;

Fig. 2 is the pump shaft lower end linkage structure schematic representation of the utility model Under Water Pumps;

In Fig. 1, Fig. 2,1, bearing cap; 2, rolling bearing; 3, bearing support; 4, pump shaft; 5, bearing support axle; 6, Cock screw; 7, lining; 8, sliding bearing outer ring; 9, sliding bearing inner ring; 10, impeller; 11, pump case; 12, pump cover; 13, liquid lower bearing gland.

Embodiment

Like Fig. 1, shown in Figure 2; Under Water Pumps comprises pump coupling, pump shaft 4, bearing support 3, pump case 11, impeller 10 and drain pipe; Has bearing support axle 5 between pump coupling and pump shaft 4 upper ends; The pump coupling is connected with

bearing support axle

5, and 1 of bearing support 3 and bearing cap have rolling bearing 2, has Cock screw 6 on the axis of pump shaft 4 and bearing support axle 5.Pump shaft 4 lower ends have lining 7, sliding bearing outer ring 8, sliding bearing inner ring 9, liquid lower bearing gland 13 and pump cover 12; Sliding bearing inner ring 9 is loaded on the pump shaft 4; The upper end of sliding bearing inner ring 9 is a lining 7; The lower end of sliding bearing inner ring 9 is an impeller 10, and the length of sliding bearing outer ring 8 is less than sliding bearing inner ring 9, and the upper end of sliding bearing outer ring 8 is concordant with the upper end of sliding bearing inner ring 9.Has the fluorine rubber SEALING FITTING between impeller 10 and the lining 7, the influence that compensation is expanded with heat and contract with cold, anti-heads.In order to guarantee that to greatest extent pump safely and steadily runs; The upper end of pump shaft is equipped with the labyrinth that together rotates with pump shaft; When the medium liquid level is higher when pump operation, make medium under action of centrifugal force, can't reach the outside, labyrinth can prevent that dielectric leakage from arriving the outside.Following can being equipped with of pump case slipped through the net.

The utility model Under Water Pumps adopts such structure; Pump drive shaft adopts up and down two independent sector bearing support axles and pump shaft formation; The time need not pull down bearing and bearing support axle in maintenance, only need to the pump shaft place under repair or change then can, minimizing engineering time; Not only using scope is wide, and can reduce user's user cost.

Claims

1. Under Water Pumps; Comprise pump coupling, pump shaft, bearing support, pump case, impeller and drain pipe, it is characterized in that: be provided with the bearing support axle between described pump coupling and the pump shaft upper end, described pump coupling is connected with the bearing support axle; Described pump shaft lower end is provided with lining, sliding bearing outer ring, sliding bearing inner ring, liquid lower bearing gland and pump cover; Described sliding bearing inner ring is loaded on the pump shaft, and the upper end of sliding bearing inner ring is a lining, and the lower end of sliding bearing inner ring is an impeller; The length of described sliding bearing outer ring is less than the sliding bearing inner ring, and the upper end of described sliding bearing outer ring is concordant with the upper end of sliding bearing inner ring.

2. Under Water Pumps according to claim 1 is characterized in that: be provided with the fluorine rubber SEALING FITTING between described impeller and the lining.

3. Under Water Pumps according to claim 1 and 2 is characterized in that: the upper end of described pump shaft is provided with the labyrinth that together rotates with pump shaft.

4. Under Water Pumps according to claim 3 is characterized in that: the below of described pump case is provided with slips through the net.