CN203384091U - Self-balancing multiple-stage centrifugal pump equipped with tapered radial sliding bearing - Google Patents

Self-balancing multiple-stage centrifugal pump equipped with tapered radial sliding bearing Download PDF

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Publication number
CN203384091U
CN203384091U CN201320446250.9U CN201320446250U CN203384091U CN 203384091 U CN203384091 U CN 203384091U CN 201320446250 U CN201320446250 U CN 201320446250U CN 203384091 U CN203384091 U CN 203384091U
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China
Prior art keywords
bearing
shaft
drive
sliding bearing
radial sliding
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CN201320446250.9U
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Chinese (zh)
Inventor
蔡朋飞
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Changsha Zhonglian Pump Industry Co., Ltd.
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蔡朋飞
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Priority to CN201320446250.9U priority Critical patent/CN203384091U/en
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Abstract

The utility model discloses a self-balancing multiple-stage centrifugal pump equipped with a tapered radial sliding bearing. The self-balancing multiple-stage centrifugal pump comprises a shaft, a drive-end bearing component, a drive-end shaft seal, a suction section, impellers, guide vanes, a middle section, a discharge section, reverse impellers, reverse guide vanes, a reverse suction section, a bearing pedestal, collar bearings, shaft sleeves, a fixed bolt and an adjustable bolt, wherein the suction section, the middle section, the guide vanes, the discharge section, the reverse guide vanes and the reverse suction section form a working cavity of the pump; the impellers and the reverse impellers are mounted at the middle part of the shaft; the drive-end bearing component and the drive-end shaft seal are mounted at the shaft extension end of the shaft, and the tapered radial sliding bearing is mounted at the other end of the shaft; the tapered radial sliding bearing is composed of the collar bearings fixed in the bearing pedestal and the shaft sleeves fixed on the shaft. According to the utility model, the service life of the sliding bearing is prolonged, the operating stability of the pump is maintained, the man-hour for part replacement in machine halt is saved, and the effects of energy conservation and consumption reduction are remarkable.

Description

Be equipped with the self-balanced multiple-stage centrifugal pump of taper radial sliding bearing
Technical field
The utility model relates to centrifugal pump, is specially a kind of self-balancing centrifugal pump that is equipped with the taper radial sliding bearing.
Background technique
Existing self-balanced multiple-stage centrifugal pump, performance range is wide, and application is extensive, and efficiency and reliability are better than common multistage centrifugal pump, are progressively replacing common multistage centrifugal pump.But have two main problems: 1, anti-drive end is provided with shaft seal and bearing part, has increased cost of production.Particularly the pressure of anti-drive end shaft seal cavity be pumping head half, need to be equipped with the shaft seal of the pressure of anti-the high workload; If reduce this pressure, need to install return pipe additional, this will significantly reduce the efficiency of pump.If 2 as external some manufacturer (as Sulzer), be equipped with the high cylindrical radial sliding bearing of manufacture cost at anti-drive end, though can solve foregoing problems, but still exist because wearing and tearing cause bearing play, increase, the problem that the operation balance of pump reduces, and work as gap greatly to a certain extent, the bearing involved great expense can only be replaced.
The model utility content
The technical problem that the utility model solves is to provide a kind of self-balanced multiple-stage centrifugal pump that is equipped with the taper radial sliding bearing, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
Be equipped with the self-balanced multiple-stage centrifugal pump of taper radial sliding bearing, comprise axle, the drive end bearing parts, the drive end shaft seal, suction casing, impeller, stator, stage casing, Spit Section, anti-impeller, return guide vane, anti-suction casing, bearing support, the cover bearing, axle sleeve, fixing bolt and adjusting bolt, described suction casing, stage casing, stator, Spit Section, return guide vane, anti-suction casing forms the active chamber (stationary part) of pump, the middle part of described axle is equipped with impeller and anti-impeller, described drive end bearing parts and drive end shaft seal are arranged on the shaft extension end of axle, described taper radial sliding bearing is arranged on the other end of axle, described taper radial sliding bearing is comprised of with the axle sleeve be fixed on axle the cover bearing be fixed in bearing support, the endoporus of described cover bearing is taper, the outer fenestra of described axle sleeve is taper, the axial position of described cover bearing can change by adjusting bolt and fixing bolt, thereby the gap between change and axle sleeve.
In the utility model, be equipped with the taper radial sliding bearing by the anti-drive end at pump, in order to replace shaft seal and bearing part; Both reduced production costs, fundamentally stopped again the leakage of anti-drive end shaft seal; When wearing and tearing cause bearing play to increase, without shutdown, only need to regulate the cover bearing be fixed in bearing support and the relative axial position that is fixed on the axle sleeve on axle, bearing play can be returned to suitable size; Both extended sliding bearing life-span, make pump keep traveling comfort, saved again and shut down the man-hour of changing component.
Beneficial effect: the self-balanced multiple-stage centrifugal pump of the outfit taper radial sliding bearing that the utility model is related, save a set of shaft seal and bearing part, both reduced production costs, fundamentally stopped again the leakage of anti-drive end shaft seal.When wearing and tearing cause bearing play to increase, without shutdown, only need to regulate the cover bearing be fixed in bearing support and the relative axial position that is fixed on the axle sleeve on axle, bearing play can be returned to suitable size.Both extended sliding bearing life-span, make pump keep traveling comfort, saved again and shut down the man-hour of changing component, energy conservation and consumption reduction effects highly significant.Specific as follows:
1. the utility model adopts the lubricious taper radial sliding bearing of medium at the anti-drive end of pump, to replace shaft seal and the bearing part of anti-drive end, both reduces production costs, and has fundamentally stopped again the leakage of anti-drive end shaft seal.
2. after the gap of described taper radial sliding bearing increases, without shutting down maintenance, only need the cover bearing be fixed in bearing support be moved laterally by adjusting bolt and fixing bolt, bearing play can be adjusted to suitable size.Both extended sliding bearing life-span, make pump keep traveling comfort, saved again and shut down the man-hour of changing component.
The accompanying drawing explanation
The internal structure schematic diagram that Fig. 1 is the utility model preferred embodiment.
The local enlarged diagram of the internal structure that Fig. 2 is the utility model preferred embodiment.
Fig. 3 is common self-balanced multiple-stage centrifugal pump schematic diagram.
The local enlarged diagram of the internal structure of the cylindrical radial sliding bearing that Fig. 4 is Sulzer company.
In figure: fixing bolt 1, bearing support 2, cover bearing 3, axle sleeve 4, axle 5, adjusting bolt 6, bearing play 7, drive end bearing parts 8, drive end shaft seal 9, suction casing 10, stator 11, impeller 12,13, Spit Section, stage casing 14, anti-impeller 15, return guide vane 16, anti-suction casing 17, anti-drive end shaft seal 18, non-driven-end bearing parts 19, cover bearing 20, axle sleeve 21.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, the self-balanced multiple-stage centrifugal pump of 2 outfit taper radial sliding bearing, comprise fixing bolt 1, bearing support 2, cover bearing 3, axle sleeve 4, axle 5, adjusting bolt 6, bearing play 7, drive end bearing parts 8, drive end shaft seal 9, suction casing 10, stator 11, impeller 12, stage casing 13, Spit Section 14, anti-impeller 15, return guide vane 16, anti-suction casing 17 etc., described suction casing 10, stage casing 13, stator 11, Spit Section 14, return guide vane 16, anti-suction casing 17 grades form the active chamber (stationary part) of pump, the middle part of described axle 5 is equipped with impeller 12 and anti-impeller 15, described drive end bearing parts 8 and drive end shaft seal 9 are arranged on the shaft extension end of axle 5, described taper radial sliding bearing is arranged on the other end of axle 5, described taper radial sliding bearing is comprised of with the axle sleeve 4 be fixed on axle 5 the cover bearing 3 be fixed in bearing support 2, the endoporus of described cover bearing 3 is tapers, the outer fenestra of described axle sleeve 4 is tapers, after the gap 7 of described taper radial sliding bearing increases, without shutting down maintenance, only need be by adjusting bolt 6 and fixing bolt 1, the cover bearing 3 be fixed in bearing support 2 is moved laterally, bearing play 7 can be adjusted to suitable size.
In Fig. 3, be common self-balanced multiple-stage centrifugal pump, with anti-drive end shaft seal 18 and non-driven-end bearing parts 19, cost of production increases, and the length of pump increases, and particularly there is the danger of leaking in anti-drive end shaft seal 18.
In Fig. 4, be the cylindrical radial sliding bearing of Sulzer company, the gap 7 between cover bearing 20 and axle sleeve 21, due to after wearing and tearing increase, can only adopt the mode of changing cover bearing 20 and axle sleeve 21 to recover.
With the multistage centrifugal pump of common self-balanced multiple-stage centrifugal pump and Sulzer company, compare, the utility model can reduce the cost of production of pump, has avoided again the problem of conventional pump anti-drive end shaft sealing leakage; With respect to the cylindrical radial sliding bearing of Sulzer company, there is again bearing play online (scene) adjustable, thereby bearing life extends, operating accuracy easily recovers, and saves the advantage of hours to repair.
Above demonstration and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (2)

1. be equipped with the self-balanced multiple-stage centrifugal pump of taper radial sliding bearing, comprise axle, the drive end bearing parts, the drive end shaft seal, suction casing, impeller, stator, stage casing, Spit Section, anti-impeller, return guide vane, anti-suction casing, bearing support, the cover bearing, axle sleeve, fixing bolt and adjusting bolt, described suction casing, stage casing, stator, Spit Section, return guide vane, anti-suction casing forms the active chamber of pump, the middle part of described axle is equipped with impeller and anti-impeller, described drive end bearing parts and drive end shaft seal are arranged on the shaft extension end of axle, it is characterized in that, described taper radial sliding bearing is arranged on the other end of axle, described taper radial sliding bearing is comprised of with the axle sleeve be fixed on axle the cover bearing be fixed in bearing support.
2. the self-balanced multiple-stage centrifugal pump of outfit taper radial sliding bearing according to claim 1, is characterized in that, the endoporus of described cover bearing is taper, and the outer fenestra of described axle sleeve is taper.
CN201320446250.9U 2013-07-25 2013-07-25 Self-balancing multiple-stage centrifugal pump equipped with tapered radial sliding bearing Active CN203384091U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320446250.9U CN203384091U (en) 2013-07-25 2013-07-25 Self-balancing multiple-stage centrifugal pump equipped with tapered radial sliding bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320446250.9U CN203384091U (en) 2013-07-25 2013-07-25 Self-balancing multiple-stage centrifugal pump equipped with tapered radial sliding bearing

Publications (1)

Publication Number Publication Date
CN203384091U true CN203384091U (en) 2014-01-08

Family

ID=49872592

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320446250.9U Active CN203384091U (en) 2013-07-25 2013-07-25 Self-balancing multiple-stage centrifugal pump equipped with tapered radial sliding bearing

Country Status (1)

Country Link
CN (1) CN203384091U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: CHANGSHA ZHONGLIAN PUMP INDUSTRY CO., LTD.

Free format text: FORMER OWNER: CAI PENGFEI

Effective date: 20140701

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20140701

Address after: 410000, No. 1061, East Ring Road, Furong district, Hunan, Changsha

Patentee after: Changsha Zhonglian Pump Industry Co., Ltd.

Address before: 306, building 3, 315 South Lake Road, Tianxin District, Hunan, Changsha, 410000

Patentee before: Cai Pengfei