CN201461208U

CN201461208U - Bearing bush clapboard device of outer circulating cooling system of water wheel generator thrust bearing external pump

Info

Publication number: CN201461208U
Application number: CN2009201004998U
Authority: CN
Inventors: 罗建华; 张砚明; 王建刚
Original assignee: Harbin Electric Machinery Co Ltd
Current assignee: Harbin Electric Machinery Co Ltd
Priority date: 2009-07-29
Filing date: 2009-07-29
Publication date: 2010-05-12
Anticipated expiration: 2019-07-29

Abstract

The utility model discloses a bearing bush clapboard device of an external pump outer circulating cooling system of a water wheel generator thrust bearing. A bearing bush clapboard is arranged between neighboring thrust bearing bushes; the bearing bush clapboard is inserted into grooves at the side surface of two neighboring thrust bearing bushes; the area of thrust bearing bush is divided into an upper part and a lower part by the bearing bush clapboard, a thrust oil groove is internally provided with an external circulating oil inlet ring canal which is provided with a plurality of oil jets; and the thrust oil groove is externally provided with an oil outlet ring canal. The thrust bearing bush clapboard device initially created in China is adopted by the utility model, thus thoroughly breaking though the limitation that only cold and hot mixed oil is adopted by the traditional lubrication cooling system participating in lubrication cooling, guaranteeing that pure cold oil participates in lubrication cooling, and improving the cooling effect.

Description

Hydraulic generator thrust bearing adds pump outer circulation cooling system watt space bar device

Technical field: the utility model relates to a kind of hydraulic generator thrust bearing and adds pump outer circulation cooling system watt space bar device.

Background technique

Thrust-bearing is one of most important parts in the hydraulic generator unit, and it is bearing electric generating set rotor weight and axial hydraulic thrust, and can its service behaviour not only is directly connected to unit safe operation, but also influences exerting oneself and efficient of unit.And be to guarantee that can thrust bearing shoe valve safe operation and be unlikely to take place the key of tile kilning accident to thrust-bearing lubricated, capacity increase along with the hydraulic generator unit, the load of thrust-bearing is also increasing, lubricated cooling to thrust-bearing requires also just high more, particularly to the lubricated cooling of the thrust-bearing of slow-speed of revolution high thrust load difficulty especially, what participate in lubricated cooling in traditional cooling system is the mixture of cold oil and deep fat, cooling effect reduces, and cooling effect is also relevant with the oily flow velocity degree that deep fat throws away, only reach certain flow velocity, could make that the oil stream that enters cooling system is smooth and easy, in the big load thrust-bearing of slow-speed of revolution lubricating and cooling system, thrust loading increases then loss and increases, and needs to promote cooling effect, and because rotating speed is low, make that oil stream flow velocity is lower, cause finishing cooling, so the effective way that also do not address this problem of conventional art, need a kind of novel efficient lubricating and cooling system of exploitation.

Summary of the invention

The purpose of the present utility model is that the hydraulic generator thrust bearing that discloses a kind of good cooling results adds pump outer circulation watt cooling system space bar device, the technical solution of the utility model is: a kind of hydraulic generator thrust bearing adds pump outer circulation cooling system watt space bar device, place watt space bar between adjacent thrust bearing shoe valve, watt space bar inserts in the groove of adjacent two thrust bearing segment sides, on watt space bar becomes region separation between thrust bearing segment, following two parts, thrust bearing oil sump inside is provided with on first oil dividing plate and second oil dividing plate be divided into whole oil groove, following two zones, upper area participates in lubricated cooled deep fat district for the thrust bearing shoe valve of flowing through, lower area is back to the cold oil district of thrust bearing oil sump after the cooling of external pump group, outer circulation oil-feed endless tube is set in the thrust bearing oil sump, have some nozzle openings on the oil-feed endless tube, the fuel-displaced endless tube of thrust bearing oil sump outer installment.The utility model is divided into two zones up and down by dividing plate is set with thrust bearing oil sump in oil groove, make that upper area is lubricated cooled deep fat district, and lower area guarantees that for the cold oil district through flowing back to after the cooling of outer circulation cooling system cold and hot oil does not mix.

Beneficial effect of the present utility model is: the thrust bearing segment watt space bar device that has adopted domestic initiation, between adjacent thrust bearing segment, install dividing plate, will watt between also be separated into up and down two zones, also play simultaneously guide functions, cold oil is guided to thrust bearing segment participate in lubricated cooling, thoroughly broken through the lubricated cooling of conventional lubrication cooling system participation and can only be the limitation of cold and hot miscella, what guaranteed the lubricated cooling of participation is pure cold oil, has promoted cooling effect.The present utility model is particularly useful for the lubricated cooling of slow-speed of revolution high thrust load unit thrust-bearing, and successful Application is in the hydraulic generator thrust bearing of power station, Silin.

Description of drawings

Fig. 1 the utility model structure diagrammatic cross-sectional view

Fig. 2 the utility model watt space bar partial structurtes figure

Embodiment

As shown in Figure 1, a kind of hydraulic generator thrust bearing adds pump outer circulation cooling system watt space bar device, place watt space bar 1 between adjacent thrust bearing shoe valve, as shown in Figure 2, watt space bar 1 inserts in the groove of adjacent two thrust bearing segment 9 sides, on watt space bar 1 becomes region separation between thrust bearing segment, following two parts, thrust bearing oil sump 6 inside are provided with on first oil dividing plate 2 and second oil dividing plate 4 be divided into whole oil groove 6, following two zones, upper area participates in lubricated cooled deep fat district 7 for the thrust bearing shoe valve of flowing through, lower area is back to the cold oil district 8 of thrust bearing oil sump after the cooling of external pump group, outer circulation oil-feed endless tube 3 is set in the thrust bearing oil sump 6, have some nozzle openings on the oil-feed endless tube 3, the fuel-displaced endless tube 5 of thrust bearing oil sump outer installment.

Between adjacent thrust bearing shoe valve, place watt space bar 1, watt space bar inserts in the groove of adjacent two thrust bearing segment sides, watt space bar becomes two parts up and down with region separation between thrust bearing segment, thereby guarantee that the lower partition zoning is pure cold oil for what spray into from the oil-feed endless tube that thrust bearing oil sump is lubricated cooling to thrust bearing shoe valve, and discord top participates in the lubricated cooled deep fat mixing of thrust bearing segment, thereby promotes cooling effect.

In thrust bearing oil sump inside dividing plate is set, whole oil groove is divided into two zones up and down, upper area participates in lubricated cooled deep fat for the thrust bearing shoe valve of flowing through, and the bottom is back to the cold oil of thrust bearing oil sump after the cooling of external pump group for the zone.

Outer circulation oil-feed endless tube 3 is set in thrust bearing oil sump, on the oil-feed endless tube, has some nozzle openings, the cooled lubricant oil of external circulating system is sprayed into thrust bearing oil sump participate in lubricated cooling.

At the fuel-displaced endless tube 5 of thrust bearing oil sump outer installment, fuel-displaced endless tube is used for bringing the lubricated cooled deep fat of participation into the outer circulation cooling system and cools off.

According to data and dependency structure size that unit provides, preliminary planning goes out to add the structure of pump outer circulation watt space bar.Determine the physical dimension of thrust bearing segment according to the conclusion of lubrication calculation after, in thrust bearing segment both sides open channels, determine the size of watt space bar then, according to the general arrangement of thrust-bearing and the particular location of watt space bar, the accessory septa that is used for branch thermal insulating oil in the oil groove arranged finish, thereby finish layout thrust bearing segment space bar device.

Claims

1. a hydraulic generator thrust bearing adds pump outer circulation cooling system watt space bar device, it is characterized in that: place watt space bar (1) between adjacent thrust bearing shoe valve, watt space bar (1) inserts in the groove of adjacent two thrust bearing segments (9) side, on watt space bar (1) becomes region separation between thrust bearing segment, following two parts, thrust bearing oil sump (6) inside is provided with on first oil dividing plate (2) and second oil dividing plate (4) be divided into whole oil groove (6), following two zones, upper area participates in lubricated cooled deep fat district (7) for the thrust bearing shoe valve of flowing through, lower area is back to the cold oil district (8) of thrust bearing oil sump after the cooling of external pump group, outer circulation oil-feed endless tube (3) is set in the thrust bearing oil sump (6), the oil-feed endless tube has some nozzle openings on (3), the fuel-displaced endless tube of thrust bearing oil sump outer installment (5).