CN214742307U

CN214742307U - Pure oil mist lubricating air cooling centrifugal pump bearing component

Info

Publication number: CN214742307U
Application number: CN202121057367.9U
Authority: CN
Inventors: 姜本发
Original assignee: Liunai Pump Industry Dalian Co ltd
Current assignee: Liunai Pump Industry Dalian Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-11-16
Anticipated expiration: 2031-05-17

Abstract

The utility model belongs to a pure oil mist lubrication air cooling centrifugal pump bearing part, which comprises a driving end bearing part and a non-driving end bearing part and is characterized in that a first inner hexagonal socket head screw is connected with a threaded hole of a first bearing box body through a countersunk hole of a first oil mist bearing gland with a shaft hole in the middle, a first inlet adapter is connected with a first joint hole of the first bearing box body and passes through a mounting hole of the first oil mist bearing gland, and a first outlet adapter is connected with a second joint hole of the first bearing box body; an oil mist flowing directional channel I is formed by a bearing box I, an oil throwing ring sleeve I and an oil mist bearing gland I; and a second oil mist flowing directional channel is formed by the second bearing box body, the second oil throwing ring sleeve and the second oil mist bearing gland. The utility model discloses a lubricated effectual, the operation production heat is low, long service life, need not regularly change oil and inspection oil level, save oil and maintenance man-hour, spare parts commonality such as bearing box and bearing gland is high, has practiced thrift casting and processing cost.

Description

Pure oil mist lubricating air cooling centrifugal pump bearing component

Technical Field

The utility model belongs to a bearing part, in particular to pure oil mist lubrication air cooling centrifugal pump bearing part.

Background

The single-stage double-suction radial split centrifugal pump is a shell, impeller runners are bilaterally symmetrical, and a two-end bearing support structure is provided, wherein one end of the single-stage double-suction radial split centrifugal pump is a driving end bearing part, and the other end of the single-stage double-suction radial split centrifugal pump is a non-driving end bearing part. The centrifugal pump is equipment for converting mechanical energy into pressure energy, performance parameters of the centrifugal pump are in a direct proportion relation with rotating speed, the rotating speed is driven as high as possible, and the centrifugal pump has important significance in improving the effectiveness of the performance parameters of the pump, reducing the size of the pump, reducing the cost of the pump and the like. The pump rotor part can operate only by bearing support, but the bearing lubricating oil is in a high temperature for a long time to cause poor lubricating performance along with the increase of the linear speed of the bearing friction pair, so that the bearing friction pair is in a dry friction state, the conditions of retardation, shaft locking, choking and the like can occur, and safety accidents are easy to occur.

The traditional lubricating mode of bearing parts is thin oil lubrication, a common water cooling structure, and the water cooling structure is that an independent cooling cavity is cast below a lubricating oil pool, the cooling effect is general, the problems of complex structure, inconvenience in cleaning and the like exist, the thin oil lubrication needs to be regularly checked and changed, and the working hours and the oil waste are wasted.

Under the conditions of strict requirements on site environment, high-temperature medium (more than 260 ℃), large shaft power, high heat dissipation requirements and the like, a water-cooling structure lubricated by thin oil cannot meet the requirements, and pure oil mist lubrication is adopted for effective cooling in order to reduce the temperature of the bearing to the allowable temperature. Pure oil mist lubrication in the prior art is realized by modifying a bearing box body and a bearing gland and simply installing an inlet-outlet adapter on the basis of thin oil lubrication, the flowing direction of oil mist in the bearing box body is not limited, so that the oil mist is freely dispersed in the bearing box body, and the problems of long dispersion time, poor bearing cooling effect, poor universality of the bearing box body and the bearing gland and the like exist.

In conclusion, the problems that the cooling cavity is complex in structure, inconvenient to clean, long in oil mist dispersion time consumption, poor in bearing cooling effect, poor in universality between the bearing box body and the bearing gland and the like need to be solved.

Disclosure of Invention

The invention aims to solve the technical defects and provides a pure oil mist lubrication air-cooling centrifugal pump bearing component, wherein a first oil mist bearing gland is designed in a bearing component at the left end of a centrifugal pump impeller, a first inlet conversion joint is arranged on the first oil mist bearing gland and the first bearing box body, a second oil mist bearing gland is also designed in the bearing component at the right end of the centrifugal pump impeller, and a second inlet conversion joint is arranged on the second oil mist bearing gland and the second bearing box body.

The utility model provides a technical scheme that technical problem took is: a pure oil mist lubrication air cooling centrifugal pump bearing part comprises a driving end bearing part and a non-driving end bearing part, wherein a pump shaft penetrates through the driving end bearing part and the non-driving end bearing part, the driving end bearing part is provided with a mechanical oil seal I, an oil mist bearing gland I, a locking nut I, an inlet conversion joint I, an oil throwing ring sleeve I, a deep groove ball bearing, an adjusting washer I, a bearing box body I, a mechanical oil seal II, an outlet conversion joint I, an O-shaped ring I and an inner hexagonal cylinder head screw I, the non-driving end bearing part is provided with a mechanical oil seal III, a bearing box body II, an adjusting washer II, an angular contact ball bearing, an oil throwing ring sleeve II, an inlet conversion joint II, a locking nut II, an oil mist bearing gland II, an inner hexagonal cylinder head screw II, an O-shaped ring II and an outlet conversion joint II; the oil mist bearing device is characterized in that a first inner hexagonal socket head cap screw is connected with a threaded hole of a first bearing box body through a countersunk hole of a first oil mist bearing gland with a shaft hole in the middle, a first inlet adapter is connected in a first joint hole of the first bearing box body and penetrates through a mounting hole of the first oil mist bearing gland, and a first outlet adapter is connected in a second joint hole of the first bearing box body; an oil mist flowing directional channel I is formed by a bearing box I, an oil throwing ring sleeve I and an oil mist bearing gland I; and a second oil mist flowing directional channel is formed by the second bearing box body, the second oil throwing ring sleeve and the second oil mist bearing gland.

An arc-shaped shoulder I and a right-angle shoulder I are arranged in a cavity of the oil mist bearing gland I, six counter bores are arranged on the circumference of the left end, and the counter bores are used for fixing the oil mist bearing gland I; the right end is equipped with the mounting hole, and the mounting hole left side is equipped with O shape circle mounting groove, is equipped with O shape circle between O shape circle mounting groove and the bearing box body.

The utility model has the advantages that: the utility model discloses a lubricated effectual, the operation production heat is low, long service life, need not regularly change oil and inspection oil level, save oil and maintenance man-hour, spare parts commonality such as bearing box and bearing gland is high, has practiced thrift casting and processing cost.

Drawings

The following description is made in detail by way of example with reference to the accompanying drawings.

FIG. 1 is a front view of a bearing assembly of a pure oil mist lubricated air-cooled centrifugal pump;

FIG. 2 is a front view of the first oil mist bearing cap of FIG. 1;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a front view of the bearing housing I of FIG. 1;

fig. 5 is a left side view of fig. 4.

In the figure: 1-a pump shaft; 2, mechanical oil seal I; 3-pressing the first oil mist bearing cover; 3-1-arc shoulder I; 3-2-a right-angled shoulder I; 3-3-mounting holes; 3-4-threaded hole; 3-5-O-shaped ring mounting grooves; 4, locking a first nut; 5-inlet transfer joint one; 6-oil throwing ring sleeve I; 7-deep groove ball bearing; 8, adjusting a first gasket; 9-bearing box body I; 9-1-threaded hole; 9-2-joint hole one; 9-3-channel hole one; 9-4 channel holes II; 9-5-joint hole two; 9-6-radiating rib plates; 9-7-vertical heat dissipation rib plates; 9-8-mounting holes; 10-mechanical oil seal II; 11-outlet transfer fitting one; 12-O-shaped ring I; 13-a first inner hexagonal cylindrical screw; 14-mechanical oil seal III; 15-bearing box II; 16-adjusting a second gasket; 17-angular contact bearings; 18-oil throwing ring sleeve II; 19-inlet crossover sub two; 20-locking a second nut; 21-oil mist bearing gland bush II; 22-a second hexagon socket head cap screw; 23-O-shaped ring II; 24-outlet crossover sub two; 25-oil mist flow directional passage one; 26-oil mist flow directional channel two.

Detailed Description

In an embodiment, referring to the attached drawings, the pump shaft 1 penetrates through a driving end bearing part and a non-driving end bearing part, the driving end bearing part is provided with a mechanical oil seal I2, an oil mist bearing gland I3, a locking nut I4, an inlet conversion joint I5, an oil slinger ring sleeve I6, a deep groove ball bearing 7, an adjusting washer I8, a bearing box I9, a mechanical oil seal II 10, an outlet conversion joint I11, an O-shaped ring I12 and an inner hexagon cylinder head screw I13, and the non-driving end bearing part is provided with a mechanical oil seal III 14, a bearing box II 15, an adjusting washer II 16, an angular contact ball bearing 17, an oil slinger ring sleeve II 18, an inlet conversion joint II 19, a locking nut II 20, an oil mist bearing gland II 21, an inner hexagon cylinder head screw II 22, an O-shaped ring II 23 and an outlet conversion joint II 24; the oil mist bearing device is characterized in that a first inner hexagonal socket head cap screw 13 is connected with a threaded hole 9-1 of a first bearing box body 9 through a countersunk hole 3-4 of a first oil mist bearing gland 3 with a shaft hole in the middle, a first inlet conversion connector 5 is connected into a first connector hole 9-2 of the first bearing box body 9 and penetrates through a mounting hole 3-3 of the first oil mist bearing gland 3, and a first outlet conversion connector 11 is connected into a second connector hole 9-5 of the first bearing box body 9; an oil mist flowing directional channel I25 is formed by a bearing box I9, an oil throwing ring sleeve I6 and an oil mist bearing gland I3; and a second oil mist flow directional channel 26 is formed by the second bearing box body 15, the second oil slinger sleeve 18 and the second oil mist bearing gland 21.

An arc-shaped shoulder I3-1 and a right-angle shoulder I3-2 are arranged in a cavity of the oil mist bearing gland I3, six counter bores 3-4 are formed in the circumference of the left end, and the counter bores 3-4 are used for fixing the oil mist bearing gland I3; the right end of the bearing box body is provided with a mounting hole 3-3, the left side of the mounting hole 3-3 is provided with an O-shaped ring mounting groove 3-5, and an O-shaped ring I12 is arranged between the O-shaped ring mounting groove 3-5 and the bearing box body I9.

Claims

1. A pure oil mist lubrication air cooling centrifugal pump bearing part comprises a driving end bearing part and a non-driving end bearing part, a pump shaft (1) penetrates through the driving end bearing part and the non-driving end bearing part, the driving end bearing part is provided with a mechanical oil seal I (2), an oil mist bearing gland I (3), a locking nut I (4), an inlet conversion joint I (5), an oil slinger ring I (6), a deep groove ball bearing (7), an adjusting washer I (8), a bearing box I (9), a mechanical oil seal II (10), an outlet conversion joint I (11), an O-shaped ring I (12) and an inner hexagonal cylinder head screw I (13), the non-driving end bearing part is provided with a mechanical oil seal III (14), a bearing box II (15), an adjusting washer II (16), an angular contact ball bearing (17), an oil slinger ring sleeve II (18), an inlet conversion joint II (19), a locking nut II (20), The oil mist bearing gland II (21), the inner hexagonal socket head cap screw II (22), the O-shaped ring II (23) and the outlet conversion joint II (24); the oil mist bearing box is characterized in that a first hexagon socket head cap screw (13) is connected with a threaded hole (9-1) of a first bearing box body (9) through a countersunk hole (3-4) of a first oil mist bearing gland (3) with a shaft hole in the middle, a first inlet conversion connector (5) is connected into a first connector hole (9-2) of the first bearing box body (9) and penetrates through a mounting hole (3-3) of the first oil mist bearing gland (3), and a first outlet conversion connector (11) is connected into a second connector hole (9-5) of the first bearing box body (9); an oil mist flowing directional channel I (25) is formed by a bearing box I (9), an oil throwing ring sleeve I (6) and an oil mist bearing gland I (3); and a second oil mist flowing directional channel (26) is formed by the second bearing box body (15), the second oil throwing ring sleeve (18) and the second oil mist bearing gland (21).

2. The bearing component of the pure oil mist lubrication air-cooled centrifugal pump according to claim 1, characterized in that an arc-shaped shoulder I (3-1) and a right-angle shoulder I (3-2) are arranged in a cavity of the oil mist bearing gland I (3), six counter bores (3-4) are arranged on the circumference of the left end, and the counter bores (3-4) are used for fixing the oil mist bearing gland I (3); the right end of the bearing box body is provided with a mounting hole (3-3), the left side of the mounting hole (3-3) is provided with an O-shaped ring mounting groove (3-5), and an O-shaped ring I (12) is arranged between the O-shaped ring mounting groove (3-5) and the bearing box body I (9).