CN205064347U - A drive bearing structure for starting feed water pump - Google Patents

A drive bearing structure for starting feed water pump Download PDF

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Publication number
CN205064347U
CN205064347U CN201520796429.6U CN201520796429U CN205064347U CN 205064347 U CN205064347 U CN 205064347U CN 201520796429 U CN201520796429 U CN 201520796429U CN 205064347 U CN205064347 U CN 205064347U
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CN
China
Prior art keywords
bearing
drive
cover
spacer
gland
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Application number
CN201520796429.6U
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Chinese (zh)
Inventor
张兴
乐秀辉
周洁
周文霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU HAISHI PUMPS MANUFACTURING Co Ltd
Shanghai Nuclear Engineering Research and Design Institute Co Ltd
Original Assignee
JIANGSU HAISHI PUMPS MANUFACTURING Co Ltd
Shanghai Nuclear Engineering Research and Design Institute Co Ltd
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Application filed by JIANGSU HAISHI PUMPS MANUFACTURING Co Ltd, Shanghai Nuclear Engineering Research and Design Institute Co Ltd filed Critical JIANGSU HAISHI PUMPS MANUFACTURING Co Ltd
Priority to CN201520796429.6U priority Critical patent/CN205064347U/en
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Abstract

The utility model provides a drive bearing structure for starting feed water pump is provided with the pump shaft in the middle of the drive bearing structure, both ends are provided with dustproof dish about the pump shaft, have set gradually spacer A, oil ring cover, cylindrical roller bearing, spacer B to the right side from a left side between the two dustproof dishes, spacer A, oil ring cover outer lane are provided with back bearing cover, grease chamber's cover, and spacer B's outer lane is provided with preceding bearing cover, be provided with the drive end bearing cap between back bearing cover, the preceding bearing cover, the grease chamber sheathes in and is provided with the disc, be provided with temperature element on the drive end bearing cap, back bearing cover, preceding bearing cover are respectively through screw and the hookup of drive end bearing body, the lower extreme of drive end bearing body is provided with the casing cap, and the left end face is provided with a plurality of fin, be provided with the several fin on the drive end bearing cap to through stud, nut and the hookup of drive end bearing body. The utility model discloses easy dismounting has solved the complexity and the high problem of fault rate of prior art system, the cost is reduced.

Description

A kind of driving bearing structure for starting feed water pump
Technical field
The utility model relates to a kind of used in nuclear power station and starts feed water pump, particularly a kind of driving bearing structure for starting feed water pump.
Background technique
Due to the development of national nuclear power technology, the demand of corollary equipment is also increasing, such as core pump, present stage the core pump market of China's nuclear power station still rely on external import, only have part core triplex to achieve production domesticization.Therefore, under the background of current national nuclear power great development, the production domesticization realizing core pump has become the primary urgent task of national nuclear power supervision department, nuclear power enterprise and domestic water pump industry.
Nuclear power provides reserve feed ability when being not only that suction booster/main feed pump or its associated lines lost efficacy with pneumatic feed water pump and pipeline Main Function thereof, perform the depth defense function of Decay heat removal system, but also there is the ability providing startup feedwater under power plant's accidental conditions to steam generator.
Existing used in nuclear power station starts feed water pump Shortcomings: bearing holder component adopts integral design, and safeguard that bearing working amount is large, maintenance is inconvenient, and maintenance cost is high.
What the bearing structure on existing startup feed water pump adopted usually is pressure lubrication, and is furnished with outside oil supply system to bearing fuel feeding.Outside oil supply system comprises outside oil pump, fuel tank, cooler and pipeline etc., because this increasing the complexity of system and the source of trouble and adding operating cost.
In prior art, general drive end bearing parts, due near motor side, do not allow mobile motor during dismounting, therefore dismounting narrow space, very inconvenient during dismounting.Meanwhile, in disassembly process, not only cause the waste of too much man power and material, result also in the probability of damage to device in disassembly process.Thus, design the simple and convenient driving bearing structure of a kind of dismounting and seem particularly important.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of easy accessibility, decreases complexity and the rate of fault of system simultaneously, and can reduce the driving bearing structure for starting feed water pump of operating cost.
The technological scheme that the utility model solves the problems of the technologies described above is as follows:
A kind of driving bearing structure for starting feed water pump, it is characterized in that: in the middle of driving bearing structure, be provided with pump shaft, the two ends, left and right of pump shaft are provided with dust pan, are disposed with spacer A, oil ring cover, roller bearing, spacer B between two dust pans from left to right; Described spacer A, oil ring cover outer ring is provided with rear bearing gland, grease chamber's cover, and the outer ring of spacer B is provided with fore bearing gland; Drive end bearing lid is provided with between described rear bearing gland, fore bearing gland; Also insulation spacer is respectively arranged with between described drive end bearing lid and fore bearing gland, rear bearing gland; Described rear bearing gland is overlapped by pin and grease chamber locates; Described grease chamber puts and is provided with disc; The top drive end bearing of described roller bearing covers and arranges the temperature measuring element that cover has O type circle, and is fixed by thermometric screw; Described drive end bearing is covered and is also provided with upper end cap and is fixed by lifting bolt; The dust pan of described right-hand member and pump shaft joint are provided with O type circle; Described rear bearing gland, fore bearing gland connect with drive end bearing body respectively by screw; The lower end of described drive end bearing body is provided with pipe plug, and left side is provided with several radiating fin, and have oil level indicator with one end arranged outside of left side vertical surface, the other end is provided with oil ga(u)ge; Described drive end bearing covers and is provided with several radiating fin, and one end of drive end bearing lid is by stud and nut simultaneously, and the other end is connected with drive end bearing body respectively by taper pin and nut.
Described drive end bearing covers and is provided with 14 radiating fin, and every limit is provided with seven radiating fin, and the left side of drive end bearing body is provided with 31 radiating fin.
Described insulation spacer is fish paper pad.
A kind of driving bearing structure for starting feed water pump described in the utility model, has easy accessibility, decreases complexity and the rate of fault of system simultaneously, and can reduce the feature of operating cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is left view of the present utility model.
1, dust pan, 2, rear bearing gland, 3, insulation spacer, 4, drive end bearing lid, 5, upper end cap, 6, spacer A, 7, lifting bolt, 8, oil ring cover, 9, thermometric screw, 10, O type circle, 11, temperature measuring element, 12, roller bearing, 13, fore bearing gland, 14, key, 15, spacer B, 16, screw, 17, disc, 18, grease chamber's cover, 19, sell, 20, drive end bearing body, 21, pipe plug, 22, oil level indicator, 23, stud, 24, nut, 25, taper pin, 26, oil ga(u)ge, 27, pump shaft, 28, radiating fin.
Embodiment
As seen from the figure, a kind of driving bearing structure for starting feed water pump, it is characterized in that: in the middle of driving bearing structure, be provided with pump shaft 27, the two ends, left and right of pump shaft 27 are provided with dust pan 1, are disposed with spacer A6, oil ring cover 8, roller bearing 12, spacer B15 between two dust pans 1 from left to right; Described spacer A6, oil ring overlap 8 outer rings be provided with rear bearing gland 2, grease chamber cover 18, spacer B15 outer ring be provided with fore bearing gland 13; Drive end bearing lid 4 is provided with between described rear bearing gland 2, fore bearing gland 13; Insulation spacer 3 is also respectively arranged with between described drive end bearing lid 4 and fore bearing gland 13, rear bearing gland 2; Described rear bearing gland 2 overlaps 18 by pin 19 with grease chamber and locates; Described grease chamber cover 18 is provided with disc 17; The top drive end bearing lid 4 of described roller bearing 12 is arranged the temperature measuring element 11 that cover has O type circle 10, and fixed by thermometric screw 9; Described drive end bearing lid 4 is also provided with upper end cap 5 and is fixed by lifting bolt 7; Dust pan 1 and pump shaft 27 joint of described right-hand member are provided with O type circle 10; Described rear bearing gland 2, fore bearing gland 13 connect with drive end bearing body 20 respectively by screw 16; The lower end of described drive end bearing body 20 is provided with pipe plug 21, and left side is provided with several radiating fin 28, and have oil level indicator 22 with one end arranged outside of left side vertical surface, the other end is provided with oil ga(u)ge 26; Described drive end bearing lid 4 is provided with several radiating fin 28, and one end of drive end bearing lid 4 is by stud 23 and nut 24 simultaneously, and the other end is connected with drive end bearing body 20 respectively by taper pin 25 and nut 24.
Described drive end bearing lid 4 is provided with 14 radiating fin 28, every limit is provided with seven radiating fin, and the left side of drive end bearing body 20 is provided with 31 radiating fin 28.
Described insulation spacer 3 is fish paper pad.
During concrete enforcement, drive end bearing parts comprise the composition such as drive end bearing body, drive end bearing lid, roller bearing, bearing gland, a disc.Roller bearing bears the radial force of rotor part, and bearing proposes oil lubrication by disc, and bearing support and bearing gland are processed with radiating fin, adds the heat diffusion area of itself and air.Because drive end bearing parts are near motor side, do not allow mobile motor during dismounting, therefore dismounting space is little, and roller bearing Internal and external cycle is separated.Drive end axle bearing component adopts middle open type structural design, in face of opening adopt the such bearing outer ring of finger setting can pull down with bearing support, bearing inner race is removed by special tool, and whole disassembly process is simple, easily.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or the conversion of equivalent flow process or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
In sum, a kind of driving bearing structure for starting feed water pump described in the utility model, has easy accessibility, decreases complexity and the rate of fault of system simultaneously, and can reduce the feature of operating cost.

Claims (3)

1. one kind for starting the driving bearing structure of feed water pump, it is characterized in that: in the middle of driving bearing structure, be provided with pump shaft (27), the two ends, left and right of pump shaft (27) are provided with dust pan (1), and two dust pans are disposed with spacer A(6 between (1) from left to right), oil ring cover (8), roller bearing (12), spacer B(15); Described spacer A(6), oil ring cover (8) outer ring be provided with rear bearing gland (2), grease chamber cover (18), spacer B(15) outer ring be provided with fore bearing gland (13); Drive end bearing lid (4) is provided with between described rear bearing gland (2), fore bearing gland (13); Insulation spacer (3) is also respectively arranged with between described drive end bearing lid (4) and fore bearing gland (13), rear bearing gland (2); Described rear bearing gland (2) overlaps (18) by pin (19) with grease chamber and locates; Described grease chamber's cover (18) is provided with disc (17); Top drive end bearing lid (4) of described roller bearing (12) is arranged the temperature measuring element (11) that cover has O type circle (10), and fixed by thermometric screw (9); Described drive end bearing lid (4) is also provided with upper end cap (5) and is fixed by lifting bolt (7); Dust pan (1) and pump shaft (27) joint of described right-hand member are provided with O type circle (10); Described rear bearing gland (2), fore bearing gland (13) connect with drive end bearing body (20) respectively by screw (16); The lower end of described drive end bearing body (20) is provided with pipe plug (21), and left side is provided with several radiating fin (28), has oil level indicator (22) with one end arranged outside of left side vertical surface, and the other end is provided with oil ga(u)ge (26); Described drive end bearing lid (4) is provided with several radiating fin (28), one end of drive end bearing lid (4) is by stud (23) and nut (24) simultaneously, and the other end is connected with drive end bearing body (20) respectively by taper pin (25) and nut (24).
2. a kind of driving bearing structure for starting feed water pump according to claim 1, it is characterized in that: described drive end bearing lid (4) is provided with 14 radiating fin (28), every limit is provided with seven radiating fin, and the left side of drive end bearing body (20) is provided with 31 radiating fin (28).
3. a kind of driving bearing structure for starting feed water pump according to claim 1, is characterized in that: described insulation spacer (3) is fish paper pad.
CN201520796429.6U 2015-10-16 2015-10-16 A drive bearing structure for starting feed water pump Active CN205064347U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520796429.6U CN205064347U (en) 2015-10-16 2015-10-16 A drive bearing structure for starting feed water pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520796429.6U CN205064347U (en) 2015-10-16 2015-10-16 A drive bearing structure for starting feed water pump

Publications (1)

Publication Number Publication Date
CN205064347U true CN205064347U (en) 2016-03-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520796429.6U Active CN205064347U (en) 2015-10-16 2015-10-16 A drive bearing structure for starting feed water pump

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019002358A1 (en) * 2017-06-28 2019-01-03 Sulzer Management Ag Bearing housing for a turbomachine, and turbomachine having a bearing housing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019002358A1 (en) * 2017-06-28 2019-01-03 Sulzer Management Ag Bearing housing for a turbomachine, and turbomachine having a bearing housing

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