CN219605840U - Water guide bearing device of water turbine - Google Patents

Abstract

The utility model discloses a hydraulic turbine water guide bearing device, which comprises a rotating shaft, a bearing body and a cooler, wherein an oil groove is spirally formed in the inner wall of the bearing body, an oil tank is connected to the top of the bearing body through bolts, the inside of the oil tank is communicated with the oil groove, the cooler is fixedly connected to the top of the bearing body, a fixing box is connected to the bottom of the bearing body through bolts, an oil inlet pipe is arranged in the fixing box and is fixedly connected with the bottom of the oil guide pipe, a filter screen is arranged in the fixing box and positioned on the side wall of the oil inlet pipe, and a collecting box is fixedly connected to the side wall of the filter screen, and the hydraulic turbine water guide bearing device has the beneficial effects that: in the process of circulating cooling of the lubricating oil in the water guide bearing on the rotating shaft, the lubricating oil entering the oil inlet pipe is filtered through the filter screen, and meanwhile, suction generated by pumping the lubricating oil through the water pump enables filtered impurities to be adsorbed on the outer wall of the filter screen, so that the bolts on the outer wall of the fixing plate are screwed out, the filtered impurities can be cleaned, and the service life of the device is prolonged.

Description

Water guide bearing device of water turbine

Technical Field

The utility model relates to the technical field of water turbines, in particular to a water turbine guide bearing device.

Background

The hydraulic turbine is a main power device of a hydropower station, and is a power machine for converting energy of water flow into rotary mechanical energy, the water guide bearing is an important component of the hydraulic turbine and is used for supporting a main shaft of the hydraulic turbine rotating at a high speed, and an oil basin between the main shaft and the water guide bearing is filled with circulating thin oil for cooling and lubricating the main shaft.

The water guide bearing for the water turbine with the publication number of CN212803946U is characterized in that normal-temperature lubricating oil enters an oil groove at the tile surface of the bearing bush from an upper oil tank under the action of gravity, so that the effects of lubricating the bearing bush and absorbing heat of the bearing bush are realized, then the lubricating oil enters a rotary oil basin along the oil groove, the temperature of the lubricating oil at the moment rises to become hot lubricating oil because of absorbing the heat of the bearing bush, the hot lubricating oil in the rotary oil basin enters a cooler for cooling under the action of an oil feeding mechanism, and the cooled lubricating oil flows back into the upper oil tank from the cooler, so that the circulating cooling of the lubricating oil is realized.

But in the in-service use, because the hot lubricating oil in the rotatory oil pan lacks filtration when entering into the cooler cooling, can lead to the impurity of pivot outer wall to get into the oil tank inside under the carrying of lubricating oil to influence the lubrication effect of lubricating oil, greatly reduced device's life.

Therefore, the water turbine water guide bearing device is designed and produced so as to solve the problem that the water guide bearing device lacks a filtering structure.

Disclosure of Invention

The utility model aims to solve the technical problems: but in the in-service use, because the hot lubricating oil in the rotatory oil pan lacks filtration when entering into the cooler cooling, can lead to the impurity of pivot outer wall to get into inside the oil tank under the carrying of lubricating oil to influence the lubrication effect of lubricating oil, greatly reduced device's life, therefore propose a hydraulic turbine water guide bearing device.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a hydraulic turbine water guide bearing device, includes pivot, bearing body and cooler, the oil groove has been seted up to the spiral of bearing body inner wall, bearing body top bolted connection has the oil tank, the inside and the oil groove of oil tank link up mutually, cooler fixed connection is at the bearing body top, be connected through the pipe between cooler liquid outlet end and the oil tank, the inside oil guide pipe that is provided with of bearing body, bearing body bottom bolted connection has fixed case, fixed incasement portion and oil groove link up mutually, fixed incasement portion is provided with into oil pipe and leads oil pipe bottom fixed connection, fixed incasement portion and be located into oil pipe lateral wall and be provided with the filter screen, filter screen lateral wall fixedly connected with collecting box, at the inside lubricating oil of water guide bearing carries out circulative cooling's in-process to the pivot, the lubricating oil that gets into oil pipe carries out filtration through the filter screen.

Preferably, the side wall of the oil tank is fixedly connected with a water pump, the water outlet end of the water pump is fixedly connected with the cooler, the water inlet end of the water pump is fixedly connected with the oil guide pipe through a connecting pipe, and the suction generated by pumping lubricating oil through the water pump enables impurities filtered out to be adsorbed on the outer wall of the filter screen, so that the collecting box is taken out, and impurities can be cleaned.

Preferably, the fixed slot has been seted up at fixed box top, the inside bolted connection of fixed slot has the fixed plate, filter screen fixed connection is in the fixed plate bottom, with fixed plate outer wall bolt unscrew, can be with collecting and take out from the fixed box is inside, is convenient for clear up the impurity that filters out.

Preferably, be provided with sealed pad between fixed slot and the fixed plate, fixed plate top fixedly connected with handle increases the sealing performance of fixed plate when installing at the fixed slot through sealed pad, is convenient for take out the fixed plate through the handle simultaneously, improves the convenience of device.

Preferably, the oil tank top has been seted up logical groove, logical inslot portion threaded connection has the sealing block, with the sealing block follow logical groove top unscrew, can refuel the oil tank inside, improve the convenience of device.

Preferably, sealing plug bottom fixedly connected with, sealing plug closely laminates with logical inslot wall, and inside sealing plug was extruded to sealing plug screw in logical inslot when sealing block, improves the sealing performance of logical groove department.

Compared with the prior art, the utility model has the beneficial effects that: in the process of carrying out circulating cooling on the rotating shaft by the lubricating oil in the water guide bearing, the lubricating oil entering the oil inlet pipe is filtered through the filter screen, and meanwhile, the suction force generated by pumping the lubricating oil through the water pump is used for adsorbing impurities filtered out on the outer wall of the filter screen, so that the bolts on the outer wall of the fixing plate are screwed out, the filtered impurities can be cleaned, the use effect of the lubricating oil is prevented from being influenced by the impurities, and the service life of the device is prolonged.

Drawings

FIG. 1 is a schematic view of a water guide bearing of the present utility model in partial front cross-section;

FIG. 2 is a schematic top view of the water guide bearing of the present utility model;

fig. 3 is a schematic view of the overall appearance structure of the collecting box of the utility model.

In the figure: 1. a rotating shaft; 2. a bearing body; 3. a cooler; 4. an oil groove; 5. an oil tank; 6. a fixed box; 7. an oil guide pipe; 8. an oil inlet pipe; 9. a filter screen; 10. a collection box; 11. a water pump; 12. a connecting pipe; 13. a fixing groove; 14. a fixing plate; 15. a sealing gasket; 16. a handle; 17. a through groove; 18. a sealing block; 19. and (5) sealing plugs.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Example 1

Referring to fig. 1-3, the present embodiment provides a hydraulic turbine water guide bearing device, which includes a rotating shaft 1, a bearing body 2 and a cooler 3, wherein the cooler 3 cools cooling water mainly through a condenser, then two liquids are subjected to heat exchange by a countercurrent heat exchange method to achieve a cooling effect on lubricating oil, an oil tank 4 is spirally arranged on the inner wall of the bearing body 2, an oil tank 5 is connected with the top of the bearing body 2 through bolts, the inside of the oil tank 5 is communicated with the oil tank 4, the cooler 3 is fixedly connected with the top of the bearing body 2, a liquid outlet end of the cooler 3 is connected with the oil tank 5 through a conduit, an oil guide pipe 7 is arranged in the bearing body 2, a fixed box 6 is connected with the bottom of the bearing body 2 through bolts, the inside of the fixed box 6 is communicated with the oil tank 4, an oil inlet pipe 8 is arranged in the fixed box 6 and is fixedly connected with the bottom of the oil guide pipe 7, a water pump 11 is fixedly connected with the side wall of the oil tank 5, a water outlet end of the water pump 11 is fixedly connected with the cooler 3, and a water inlet end of the water pump 11 is fixedly connected with the oil guide pipe 7 through a connecting pipe 12;

when the bearing is installed, the bearing body 2 is sleeved on the rotating shaft 1, the oil tank 5 and the fixed box 6 are connected to the outer wall of the bearing body 2 through bolts, the sealing block 18 is screwed out to inject lubricating oil, when the bearing is used, the lubricating oil in the oil tank 5 enters the oil groove 4 under the action of gravity, so that the cotton lubrication is relieved between the rotating shaft 1 and the bearing body 2, meanwhile, the lubricating oil absorbs heat generated by friction between the bearing body 2 and the rotating shaft 1, so that the temperature of the lubricating oil is increased to form lubricating oil in a high temperature state, then the high temperature lubricating oil spirally drops to the inside of the fixed box 6, the water pump 11 is started to suck the high temperature lubricating oil in the fixed box 6 into the cooler 3 for cooling treatment under the cooperation of the connecting pipe 12, the oil guide pipe 7 and the oil inlet pipe 8, and finally the cooled lubricating oil flows back into the oil tank 5 through the guide pipe, so that the circulating cooling of the lubricating oil on the rotating shaft 1 is realized;

the filter screen 9 sets up inside fixed case 6 and lie in advance oil pipe 8 lateral wall, collecting box 10 fixed connection is at filter screen 9 lateral wall, fixed slot 13 is seted up at fixed case 6 top, fixed plate 14 bolted connection is inside fixed slot 13, filter screen 9 fixed connection is in fixed plate 14 bottom, handle 16 fixed connection is at fixed plate 14 top, the in-process that the inside lubricating oil of water guide bearing carries out circulative cooling to pivot 1, the lubricating oil that enters into oil pipe 8 from fixed case 6 carries out filtration through filter screen 9, the suction that produces through the extraction lubricating oil of water pump 11 simultaneously, make the debris that filters adsorb at filter screen 9 outer wall, after the use is accomplished, first with fixed plate 14 outer wall bolt unscrew, drive fixed plate 14 and take out from fixed slot 13 inside at pulling handle 16, consequently, the impurity of filter screen 9 lateral wall falls into inside collecting box 10, can clear up the impurity that filters out at last, avoid impurity to influence the result of use of lubricating oil, the life of device has been improved, the inside technical problem that lacks the filtration structure of prior art water guide bearing device.

Example 2

Referring to fig. 1-3, a further improvement was made over example 1:

wherein, the sealing gasket 15 is arranged between the fixing groove 13 and the fixing plate 14, and the sealing performance of the fixing plate 14 when being arranged in the fixing groove 13 is increased by the sealing gasket 15.

The oil tank 5 is internally filled with oil by screwing the sealing block 18 out of the top of the oil tank 17, the sealing block 18 is in threaded connection with the inside of the oil tank 5, the sealing plug 19 is fixedly connected with the bottom of the sealing block 18, the sealing plug 19 is tightly attached to the inner wall of the oil tank 17, the sealing block 18 is screwed out of the top of the oil tank 17, the convenience of the device is improved, and when the sealing block 18 is screwed into the oil tank 17, the sealing plug 19 is extruded, and the sealing performance of the position of the oil tank 17 is improved.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Other parts of the present utility model not described in detail are all of the prior art, and are not described in detail herein.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (6)

1. The utility model provides a hydraulic turbine water guide bearing device, includes pivot (1), bearing body (2) and cooler (3), oil groove (4) have been seted up to bearing body (2) inner wall spiral, bearing body (2) top bolted connection has oil tank (5), oil tank (5) are inside link up with oil groove (4) mutually, cooler (3) fixed connection is at bearing body (2) top, be connected through the pipe between cooler (3) liquid outlet end and oil tank (5), bearing body (2) inside is provided with leads oil pipe (7), its characterized in that: the novel oil collecting box is characterized in that a fixed box (6) is connected to the bottom of the bearing body (2) through bolts, the inside of the fixed box (6) is communicated with the oil groove (4), an oil inlet pipe (8) is arranged inside the fixed box (6) and is fixedly connected with the bottom of the oil guide pipe (7), a filter screen (9) is arranged inside the fixed box (6) and on the side wall of the oil inlet pipe (8), and a collecting box (10) is fixedly connected to the side wall of the filter screen (9).

2. A hydraulic turbine pilot bearing assembly according to claim 1, wherein: the side wall of the oil tank (5) is fixedly connected with a water pump (11), the water outlet end of the water pump (11) is fixedly connected with the cooler (3), and the water inlet end of the water pump (11) is fixedly connected with the oil guide pipe (7) through a connecting pipe (12).

3. A hydraulic turbine pilot bearing assembly according to claim 1, wherein: the top of the fixed box (6) is provided with a fixed groove (13), a fixed plate (14) is connected with the inside of the fixed groove (13) through bolts, and the filter screen (9) is fixedly connected to the bottom of the fixed plate (14).

4. A hydraulic turbine pilot bearing assembly according to claim 3, wherein: a sealing gasket (15) is arranged between the fixing groove (13) and the fixing plate (14), and a handle (16) is fixedly connected to the top of the fixing plate (14).

5. A hydraulic turbine pilot bearing assembly according to claim 1, wherein: the top of the oil tank (5) is provided with a through groove (17), and the inside of the through groove (17) is connected with a sealing block (18) in a threaded manner.

6. The hydraulic turbine pilot bearing assembly of claim 5 wherein: the bottom of the sealing block (18) is fixedly connected with a sealing plug (19), and the sealing plug (19) is tightly attached to the inner wall of the through groove (17).