CN217950690U

CN217950690U - Multistage high-pressure mining pump

Info

Publication number: CN217950690U
Application number: CN202221693915.1U
Authority: CN
Inventors: 王冠超; 李佳
Original assignee: Shandong Shenwei Pump Technology Co ltd
Current assignee: Shandong Shenwei Pump Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-12-02
Anticipated expiration: 2032-06-30

Abstract

The utility model relates to a multistage high pressure mining pump belongs to pump processing and manufacturing technical field. The main shaft is sequentially provided with a front supporting end, a middle supporting end and a rear supporting end; be equipped with bearing I in the front portion supports the end, be equipped with bearing II in the middle part supports the end, is equipped with bearing III in the rear portion supports the end, and bearing I, bearing II and bearing III are used for supporting, and bearing II is slide bearing. The utility model overcomes prior art's is not enough, provides a multistage high pressure mining pump, adopts three point bearing structure, and not only efficient, the key is that the operation is steady reliable.

Description

Multistage high-pressure mining pump

Technical Field

The utility model relates to a multistage high pressure mining pump belongs to pump processing and manufacturing technical field.

Background

The HDP is a novel single-suction, multi-stage and sectional self-balancing high-pressure mining pump, and is suitable for coal carbon, neutral mine water of mines and factories and other similar sewage. Generally, the pump is a two-point bearing support structure, the deflection of a pump shaft is large, the risk of friction locking damage of a rotor and a pump body is increased, and the pump efficiency is reduced due to the fact that the clearance of a sealing ring is increased by anti-lock.

The prior art has the following technical defects: generally, the pump is a two-point bearing support structure, the deflection of a pump shaft is large, the risk of friction locking damage of a rotor and a pump body is increased, and the pump efficiency is reduced due to the fact that the clearance of a sealing ring is increased by anti-lock.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the multistage high-pressure mining pump is provided, a three-point bearing supporting structure is adopted, the efficiency is high, and the key is that the operation is stable and reliable.

The multi-stage high-pressure mining pump comprises an impeller and a guide vane which are matched with each other inside, and is characterized by further comprising a front supporting end, a middle supporting end and a rear supporting end, wherein the front supporting end, the middle supporting end and the rear supporting end are sequentially arranged on a main shaft; be equipped with bearing I in the front portion supports the end, be equipped with bearing II in the middle part supports the end, is equipped with bearing III in the rear portion supports the end, and bearing I, bearing II and bearing III are used for supporting, and bearing II is slide bearing.

Working process or working principle:

after the bearing I, the bearing II and the bearing III are installed, three-point support is changed on the basis of original two-point support, and the design of the three-point (two ends and middle) bearing support is reasonable, so that the pump has the characteristics of high efficiency, energy conservation, no leakage, simplicity in maintenance, stability and reliability in operation, long service life, small vibration, low noise, low fault, convenience in installation and maintenance and the like.

Further, the front supporting end comprises a bearing I, a bearing sleeve I, an axial positioning ring, a front pump body, a bearing sleeve positioning ring and a shaft end nut, the bearing sleeve I is fixed on the main shaft through a key connection, the axial positioning ring is arranged at one end of the bearing sleeve I, the bearing sleeve positioning ring is arranged at the other end of the bearing sleeve I, the shaft end nut is arranged at the outer end of the bearing sleeve positioning ring, the bearing sleeve I is sleeved with the bearing I, and the bearing I outer ring is fixed in the front pump body.

Furthermore, the middle supporting end comprises a bearing II, a mounting bearing bush and a positioning plate, the bearing II is connected to the mounting bearing bush in a sliding mode, the positioning plate is arranged at one end of the mounting bearing bush, and the mounting bearing bush is fixed to the main shaft.

Furthermore, the rear supporting end comprises a bearing III, a rear end shell, an end cover, a bearing sleeve II and a bearing positioning ring, the bearing sleeve II is fixed at the tail end of the main shaft through a key connection, the bearing III is sleeved on the outer ring of the bearing sleeve II, the rear end shell is sleeved and fixed on the outer ring of the bearing III, the end cover is arranged at one end of the rear end shell, the outer ring of the bearing III is tightly pressed on the inner side of the end cover, and the bearing positioning ring is arranged at one end of the bearing III.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up bearing I, bearing II and bearing III, improved the rigidity of multistage pump rotor operation, reduce the vibration value, improved impeller moving stability.

2. The utility model discloses a set up bearing I, bearing II and bearing III to the radial load of rational distribution improves the both ends bearing atress condition, has improved the bearing life-span.

3. The utility model discloses a bearing I, bearing II and the III settings of bearing have improved the stationarity of pump operation, from having reduced the clearance that seals because of vibrations produce to reduce inside leakage, improve water pump efficiency.

4. The utility model discloses the slide bearing that bearing II adopted, the direct use of doing in the medium that contains the impurity particulate matter realizes that the medium is zero to leak, do not have oily operation, change simple and convenient.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is an enlarged view of a portion of FIG. 1 at C;

in the figure: 1. a front support end; 2. a middle support end; 3. a rear support end; 4. a main shaft;

10. a bearing sleeve I; 11. a bearing I; 12. a front pump body; 13. an axial positioning ring; 20. mounting a bearing bush; 21. a bearing II; 22. positioning a plate; 30. a rear end housing; 31. a bearing III; 32. an end cap; 33. a bearing positioning ring; 34. and a bearing sleeve II.

Detailed Description

Example 1

As shown in fig. 1-4, the multistage high-pressure mining pump of the present invention comprises an impeller and a guide vane which are matched with each other inside, and is characterized by further comprising a front supporting end 1, a middle supporting end 2 and a rear supporting end 3, wherein the front supporting end 1, the middle supporting end 2 and the rear supporting end 3 are sequentially arranged on the main shaft 4; the bearing I11 is arranged in the front supporting end 1, the bearing II 21 is arranged in the middle supporting end 2, the bearing III 31 is arranged in the rear supporting end 3, the bearing I11, the bearing II 21 and the bearing III 31 are used for supporting, the bearing II 21 is a sliding bearing, the sliding bearing is an underwater sliding bearing, the inner part of a water outlet of the middle supporting end rotates, the underwater sliding bearing rotates in water, the sliding bearing comprises a metal bearing base body and a composite material (high polymer wear-resistant/corrosion-resistant/high temperature-resistant), the material can be a polytetrafluoroethylene steel-backed composite material, self-lubrication is carried out by a medium, radial force is born by the metal bearing base body, the high polymer new material layer is low in thickness and negligible in integral deformation, and the material and the structure of the base metal can be freely designed and combined according to different media and using working conditions.

Anterior support end 1 includes bearing I11, bearing housing I10, axial positioning ring 13, the anterior pump body 12, bearing housing positioning ring and axle head nut, bearing housing I10 is fixed on main shaft 4 through the key-type connection, bearing housing I10 one end is equipped with axial positioning ring 13, the I10 other end of bearing housing is equipped with the bearing housing positioning ring, bearing housing positioning ring outer end is equipped with the axle head nut, bearing housing I10 overcoat bearing I11, bearing I11 outer lane is fixed in the anterior pump body 12, bearing I11 is deep groove ball bearing, cylindrical roller bearing or tapered roller bearing. The middle supporting end 2 comprises a bearing II 21, an installation bearing bush 20 and a positioning plate 22, the bearing II 21 is connected to the installation bearing bush 20 in a sliding mode, the positioning plate 22 is arranged at one end of the installation bearing bush 20, and the installation bearing bush 20 is fixed on the main shaft 4.

The rear supporting end 3 comprises a bearing III 31, a rear end shell 30, an end cover 32, a bearing sleeve II 34 and a bearing positioning ring 33, the bearing sleeve II 34 is fixed at the tail end of the main shaft 4 through key connection, the bearing III 31 is sleeved on the outer ring of the bearing sleeve II 34, the rear end shell 30 is sleeved and fixed on the outer ring of the bearing III 31, the end cover is arranged at one end of the rear end shell 30, the outer ring of the bearing III 31 is tightly pressed on the inner side of the end cover, the bearing positioning ring 33 is arranged at one end of the bearing III 31, and the bearing III is an angular contact ball bearing and is used in pairs, mainly bears radial force and partial axial force and adopts an oil lubrication mode; the three-point bearing forms a three-point supporting structure of the pump.

The utility model discloses in to the description of the direction and the relative position relation of structure, about all around description about, do not constitute right the utility model discloses a restriction only is the description convenient.

Claims

1. A multi-stage high-pressure mining pump comprises an impeller and a guide vane which are matched with each other inside, and is characterized by further comprising a front supporting end (1), a middle supporting end (2) and a rear supporting end (3), wherein the front supporting end (1), the middle supporting end (2) and the rear supporting end (3) are sequentially arranged on a main shaft (4); be equipped with bearing I (11) in anterior support end (1), be equipped with bearing II (21) in middle part support end (2), be equipped with bearing III (31) in posterior part support end (3), bearing I (11), bearing II (21) and bearing III (31) are used for supporting, and bearing II (21) are slide bearing.

2. The multistage high-pressure mining pump according to claim 1, characterized in that the front supporting end (1) comprises a bearing I (11), a bearing sleeve I (10), an axial positioning ring (13), a front pump body (12), a bearing sleeve positioning ring and a shaft end nut, the bearing sleeve I (10) is fixed on the main shaft (4) through key connection, the axial positioning ring (13) is arranged at one end of the bearing sleeve I (10), the bearing sleeve positioning ring is arranged at the other end of the bearing sleeve I (10), the shaft end nut is arranged at the outer end of the bearing sleeve positioning ring, the bearing sleeve I (10) is sleeved with the bearing I (11), and the outer ring of the bearing I (11) is fixed in the front pump body (12).

3. The multistage high-pressure mining pump according to claim 1 or 2, wherein the middle support end (2) comprises a bearing II (21), a mounting bush (20) and a positioning plate (22), the bearing II (21) is slidably connected to the mounting bush (20), the positioning plate (22) is arranged at one end of the mounting bush (20), and the mounting bush (20) is fixed on the main shaft (4).

4. The multistage high-pressure mining pump according to claim 3, characterized in that the rear support end (3) comprises a bearing III (31), a rear end shell (30), an end cover (32), a bearing sleeve II (34) and a bearing positioning ring (33), the bearing sleeve II (34) is fixed at the tail end of the main shaft (4) through key connection, the bearing III (31) is sleeved on the outer ring of the bearing sleeve II (34), the rear end shell (30) is fixed on the outer ring of the bearing III (31) in a sleeved mode, the end cover is arranged at one end of the rear end shell (30), the inner side of the end cover presses the outer ring of the bearing III (31), and the bearing positioning ring (33) is arranged at one end of the bearing III (31).