CN106763237A

CN106763237A - A kind of thrust bearing

Info

Publication number: CN106763237A
Application number: CN201710086922.2A
Authority: CN
Inventors: 郭远军
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-02-17
Filing date: 2017-02-17
Publication date: 2017-05-31

Abstract

The invention discloses a kind of thrust bearing,Including bearing block,Bearing cap,Watt seat,Thrust bearing shoe valve,Positive thrust disk,First oil pocket,Second oil pocket,Cooler and band oil cover,Bearing cap is covered above bearing block,Watt seat is fixed on bearing block,Thrust bearing shoe valve is fixed on the front side of watt seat,First oil pocket is that bearing cap covers the annular seal space to be formed with bearing block,Second oil pocket is the cavity for being arranged on bearing block bottom,Second oil pocket includes deep fat oil inlet and cold oil oil-out,Second oil pocket connects the first oil pocket by deep fat oil inlet,Cooler is arranged in the second oil pocket,The outside diameter of positive thrust disk is arranged on oil cover,Band oil cover constitutes band oil pocket with positive thrust disk,Thrust bearing shoe valve internal side diameter is provided with and gets rid of oil pocket,Band oil pocket includes high-pressure oil outlet and oil pumping mouth,Oil pumping mouth connects the cold oil oil-out of the second oil pocket,Oil pocket is got rid of in high-pressure oil outlet connection；The present invention has heat exchanger effectiveness higher, can largely reduce bearing and oil temperature.

Description

A kind of thrust bearing

Technical field

The present invention relates to bearing arrangement field, more particularly to and generator or motor thrust bearing.

Background technology

Bearing is a kind of important spare part in contemporary plant equipment.Its major function is the mechanical rotary body of support, is reduced Coefficient of friction in its motion process, and ensure its rotating accuracy.By the difference of motor element frictional property, bearing can be divided into rolling Dynamic bearing and the major class of sliding bearing two.

Rolling bearing is typically made up of inner ring, outer ring, rolling element and the part of retainer four, and the effect of inner ring is matched with axle Merging rotates together with the axis；Outer ring effect is engaged with bearing block, is played a supportive role；Rolling element is uniform by means of retainer Rolling element is distributed between inner ring and outer ring, its shape size and quantity directly affect rolling bearing performance and Life-span；Retainer can be uniformly distributed rolling element, prevent rolling element from coming off, and guiding rolling element has rotated lubrication.

Sliding bearing, is the bearing worked under sliding friction, and the shaft portion of its bearing supporting is referred to as axle journal, with axle journal phase The part matched somebody with somebody referred to as bearing shell.Sliding bearing has stable working, reliability, muting advantage, but due to larger, its axle journal that rubs Separated without there is directly contact by lubricating oil between bearing shell.Under the conditions of hydrodynamic lubrication, friction can be greatly reduced and damaged Become estranged surface abrasion, meanwhile, oil film also has certain vibration absorption ability.In addition, in order to improve the frictional property on bearing shell surface and The friction reducing material cast on its inner surface is referred to as jewel.The material of bearing shell and jewel is referred to as material for sliding bearing. Sliding bearing application scenario is general under low-speed heave-load working condition, or maintaining and the difficult operating of filling lubricating oil Position.

Bearing is the essential part for supporting generator, motor, runner, flywheel etc., for large-scale hair During motor, such as hydrogenerator, the radial load and axial force accepted by bearing of hydraulic generator is very big, its frictional heat Also very greatly, it is necessary to specific cooling structure carries out drop heat to its rubbing surface.

The thrust bearing that existing hydrogenerator is used, as shown in figure 1, including bearing block a1, bearing cap a2, thrust bearing shoe valve A3, oil pump a4, the first oil pocket a5, the second oil pocket a6 and cooler a7；The bearing cap a2 is covered on bearing block a1, described to push away Power watt a3 is bolted on bearing block a1；It is close that the first oil pocket a5 to be formed for bearing cap a2 and bearing block a1 is covered Envelope chamber；The second oil pocket a6 is located at the first oil pocket a5 lower sections, and the upper cavity wall of the second oil pocket a6 is provided with oil input channel a61 and goes out Oil duct a62, the second oil pocket a6 are connected by oil input channel a61 and cooler are installed in the first oil pocket a5, the second oil pocket a6 The cooling oil of a7, the second oil pocket a6 is imported into the gap of thrust bearing shoe valve a3 and bearing block a1 by oil road a62 by oil pump a5 Interior, cooling oil flows through thrust friction face, and the first oil pocket a5 is discharged to from thrust bearing shoe valve a3 outside diameters.

The cooler a7 commonly used in existing bearing of hydraulic generator, as shown in Fig. 2 including cooling copper tube a71, side ring runner Dividing plate a72 and center flow channels dividing plate a73, cooling copper tube a71 run through side ring port plate a72 and center flow channels dividing plate a73；As schemed It is the side ring stream for flowing through cooling oil shown in 3, between the ring side of the side ring port plate a72 and the cavity wall of the second oil pocket a6 Road a74, as shown in figure 4, the center of center flow channels dividing plate a73 is the center flow channels a75 for flowing through cooling oil.

, there is following deficiency in the above-mentioned bearing cooler construction for using in the prior art：

Cooling oil only in the circulation of the second oil pocket a6 first halves, be detained, and causes cooler a7 by the cooling oil of the second oil pocket a6 lower half Heat exchanger effectiveness with cooling oil is relatively low, and the circulation oil temperature of cooling oil is higher.

Current power station uses above-mentioned existing bearing cooler construction, small in hydraulic generator thrust bearing operation three Shi Hou, thrust bearing shoe valve a3 temperature are universal more than 57 DEG C, and oil temperature is more than 53 DEG C.

Because existing cooling oil mainly uses No. 46 steam turbine oils or No. 32 steam turbine oils, No. 46 steam turbine oils are at 40 DEG C Under the viscous viscosity of motion be 45.8, its preferable temperature range of operation is 44-46 DEG C；The motion of No. 32 steam turbine oils at 40 DEG C is glued Viscosity is 32, and its preferable temperature range of operation is 38-40 DEG C；Need to control below 65 DEG C in existing cooling oil running, When cooling oil temperature spends height, viscous viscosity diminishes, and can cause insufficient lubrication, and coefficient of friction becomes big, and frictional heat aggravation, oil temperature is rapid Raise, and oil temperature is high, aggravates the abrasion of sliding friction surface；Existing bearing uses this cooling structure, in order to prevent oil temperature It is too high to cause mill watt, oil temperature in bearing need to be monitored, when temperature drift, the feed water flow that need to increase cooling body need to be increased Amount, when temperature is too high, is alarmed, and out of service.

Due to the problem that existing bearing of hydraulic generator generally existing heat exchanger effectiveness is relatively low, easily there is report in generator Alert to shut down, the problem not only influences the output efficiency and economic benefit in power station, and power station shutdown and start-up course to power station its The service life influence of its equipment is larger.

The reason for above mentioned problem of presence, is mainly：Because the density and viscous viscosity of cooling oil are influenceed by oil temperature change Larger, cooling oil temperature is higher, and density and viscous viscosity are smaller, and after cooling oil cools through cooling copper tube a71, its cooling amount is larger Cooling oil sink, and flow velocity diminishes, and the less cooling oil of its cooling amount floats, and causes the lower region cooling amount of the second oil pocket a6 Larger cooling oil is detained, and the less cooling oil flow rate of the cooling amount of upper zone accelerates, and from oil road a62 outflows, is caused The cooling oil of oil road a62 outflows is in the condition of high temperature.

In addition, bearing of the prior art, there is a problem in that：1. between the thrust bearing shoe valve and thrust disc of existing thrust bearing Cooling oil be directly pressed into from the outside diameter of thrust bearing shoe valve by oil pump, this kind of mode simple structure, but due to by centrifugal force Hinder, the more difficult internal side diameter for being pressed into thrust bearing shoe valve of its cooling oil is easily caused thrust bearing shoe valve internal side diameter high temperature tile kilning；2. bearing is big Part uses casting technique, and GB casting technique 2% defect of permission, the service life of its part is shorter, significantly impacts whole machine peace Stability after dress；3. bearing shell mounting bracket is fixed by two screws in left and right, can be produced when hydrogenerator breaks down Raw radial vibration, causes bearing shell to loosen, and polarization easily occurs in main shaft, causes main shaft deformation.

The content of the invention

It is a primary object of the present invention to provide a kind of thrust bearing, it is intended to improve the heat exchanger effectiveness of thrust bearing, drop The temperature of low bearing shell and cooling oil, it is to avoid bearing bush abrasion burns, increases the service life of thrust bearing.

To achieve these goals, the invention provides a kind of thrust bearing,

It is characterised by, including bearing block, bearing cap, watt seat, thrust bearing shoe valve, positive thrust disk, the first oil pocket, the second oil pocket, cooler Covered with band oil,

The bearing cap is used to cover above bearing block, and described watt of seat is fixed on bearing block, and gear is provided with the band oil pocket Oil sheet, positive thrust disk is fitted in the front end of positive thrust watt；

First oil pocket is that bearing cap covers the annular seal space to be formed with bearing block；

Second oil pocket is the cavity for being arranged on bearing block bottom, and second oil pocket is located at the first oil pocket lower section, described the Two oil pockets include deep fat oil inlet and cold oil oil-out, and second oil pocket connects the first oil pocket by deep fat oil inlet；

The cooler is arranged in the second oil pocket；

The outside diameter that positive thrust disk is arranged on oil cover；

Annular gap cavity between the internal side diameter of the thrust bearing shoe valve and watt seat is to get rid of oil pocket；

The radial outside wall of the positive thrust disk is band pasta, and band oil pocket, the band are formed between the band oil cover and band pasta In a ring, side is provided with grease baffle to oil pocket in band oil pocket, and one end of the grease baffle is fixed on the inwall with oil cover, institute State the other end sliding contact band pasta of grease baffle；It is described with being provided with high-pressure oil outlet, the bottom with oil pocket at the top of oil pocket Portion is provided with oil pumping mouth；

The oil pumping mouth with oil pocket connects the cold oil oil-out of the second oil pocket, and oil is got rid of in the high-pressure oil outlet connection with oil pocket Chamber.

In above technical scheme, oil pocket is got rid of in being communicated to by oil duct for the high-pressure oil outlet, for being slided to thrust bearing shoe valve The cooling of contact surface, and thrown away to the first oil pocket from the outside diameter of thrust bearing shoe valve.

Preferably, the outside diameter of watt seat is provided with the second annular shoe cream room, and the high-pressure oil outlet with oil pocket passes through second Oil pocket is got rid of in annular shoe cream room connection.

Preferably, described watt of seat is fixed on bearing block by least two groups fixed screws.Using this kind of fixed form, energy Effectively prevent watt seat from tilting occurring.

Preferably, the thrust bearing shoe valve be discrete watt body, including at least two annular spreads segmental pad body, the sector The leading flank of watt body is thrust interface, and the gap between adjacent segmental pad body is to get rid of oil groove.

Preferably, the band oil groove that annular is provided with pasta, annular is distributed with blade in the band oil groove.

Preferably, the first sealing chute being provided with pasta for sealing, the rear side end of the band oil cover passes through the One sealing chute is in sealing contact with the band pasta, and main shaft is provided with the second sealing chute, and the front side end with oil cover is close by second Envelope chute is contacted with main shaft seal.

Preferably, the deep fat oil inlet and cold oil oil-out are respectively positioned on the side end portion of the second oil pocket.Using this kind of structure, Oil circuit path in second oil pocket increases, and the temperature of cooling oil is advantageously reduced, so as to improve heat exchanger effectiveness；In addition, cold oil Oil-out is located at the second oil pocket end, the path length that can extend between high-pressure oil outlet and oil pumping mouth, because height is extruded Path length between hydraulic fluid port and oil pumping mouth is bigger, and the pressure difference between its high-pressure oil outlet and oil pumping mouth is also bigger, therefore, it is above-mentioned Frame mode, can improve the oil pressure of high-pressure oil outlet, so as to improve cooling oil flowing velocity.

Preferably, second oil pocket includes at least one point of chamber, and each point of chamber serial communication is installed in each point of chamber The runner for having cooler, each cooler passes through serial communication.

Preferably, second oil pocket includes at least one point of chamber, and each point of chamber serial communication is installed in each point of chamber There is cooler, the runner of each cooler is by serial communication, the liquid flow path direction of each cooler and oil stream in each point of chamber In the opposite direction.

Preferably, the cooler includes cooling tube, bottom outlet port plate and apical pore port plate, and the cooling tube is included Water inlet end and water side, the water inlet end of cooling tube and water side are connected to adpting flange；The bottom outlet port plate and top Hole port plate is spaced apart, and the bottom of the bottom outlet port plate is provided with first passage hole, the top of the apical pore port plate Portion is provided with second channel hole, and the plate face of the bottom outlet port plate and apical pore port plate is distributed with for interting wearing for cooling tube Hole, cooling tube is interspersed in bottom outlet port plate and apical pore port plate by perforation.

Preferably, the cooler includes at least two cooling tubes, and each cooling tube is in parallel, and the water inlet end of each cooling tube is common One adpting flange of connection, the water side of each cooling tube is commonly connected to another adpting flange.

Preferably, the bottom outlet port plate and apical pore port plate are perpendicular to cooling tube.

Preferably, in the cooler bottom outlet port plate and the sum of apical pore port plate is three to eight.

Preferably, the bearing block, bearing cap and watt seat make shaping using welding procedure.Existing bearing block, bearing Lid and a watt seat use casting, cast shaping process pouring defect easily occur, and according to technological standards, defect accounting is allowed Within 2%, its defect is repaired by repair welding mode, and the workpiece of casting haves the shortcomings that quality is unstable；Using welding procedure Shaping is made, its process is simple is easy to process, and the quality stability of bearing block, bearing cap and watt seat can be improved, prevent casting Defect.

Operation principle of the invention is：Thrust bearing of the present invention, because the aperture surface with oil pocket is band oil Face, band pasta drives cooling oil to flow to high-pressure oil outlet from oil pumping mouth in rotary course, and causes oil pumping mouth fuel-displaced with high pressure There is pressure difference in mouth, high-pressure oil outlet is relatively high pressure, and oil pumping mouth is negative relative, so that mouth of pumping is constantly externally to band oil pocket Oil-feed, high-pressure oil outlet is constantly fuel-displaced to outside.

Because the oil pumping mouth connects the second oil pocket, oil pocket, the cooling in second oil pocket are got rid of in high-pressure oil outlet connection Oil is pumped into band oil pocket from oil pumping mouth, and is pressed into from high-pressure oil outlet and gets rid of oil pocket；The cooling oil got rid of in oil pocket is in malleation pressure Entered under strong and centrifugal action in the sliding friction surface of thrust bearing shoe valve and positive thrust disk, frictional heat be drawn into cooling oil, And be discharged in the first oil pocket from the outside diameter of thrust bearing shoe valve.

Because second oil pocket connects the first oil pocket by deep fat oil inlet, the High-temperature cooling oil in first oil pocket Second oil pocket is entered by deep fat oil inlet, and heat exchange occurs with cooler in the second oil pocket.

In addition, thrust bearing of the present invention, in its optimisation technique scheme, second oil pocket includes at least one Divide chamber, each point of chamber serial communication is provided with cooler in each point of chamber, the runner of each cooler is by the company of series connection Logical, the liquid flow path direction of each cooler is in opposite direction with oil stream in each point of chamber；This kind of frame mode, its oil pocket outlet end can be cold But to the feed liquor temperature in cooler, coolant can largely absorb the heat energy in cooling oil in its cooler.

Relative to the technique effect of prior art：

Bearing of the prior art, the oil pump that cycles through of heat exchange oil drives.Thrust bearing of the present invention, is provided with band oil Chamber, heat exchange oil can realize the circulation of self-driven heat exchange oil without being driven using liquid pump.

Bearing of the prior art, the cooling oil between thrust bearing shoe valve and thrust disc directly passes through outside diameter of the oil pump from thrust bearing shoe valve Press-in, this kind of mode simple structure, but due to being hindered by centrifugal force, the more difficult internal diameter for being pressed into thrust bearing shoe valve of its cooling oil Side, the oil film flow velocity of its sliding friction surface is smaller, and the heat absorption rate of oil film is relatively low, causes sliding friction surface and oil film temperature inclined Height, is easily caused thrust bearing shoe valve internal side diameter high temperature tile kilning.Thrust bearing of the present invention, is provided with and gets rid of oil pocket, and will get rid of oil pocket and set Put the internal side diameter in thrust bearing shoe valve, its cooling oil flows from inside to outside, get rid of cooling oil in oil pocket can be subject to simultaneously oil pressure pressure and The driving effect of centrifugal force, the flow velocity of the oil film between thrust bearing shoe valve and positive thrust disk can largely be increased, can be larger The temperature of the reduction thrust bearing shoe valve of degree.Oil film flow velocity can largely be increased in its sliding friction surface, sliding friction surface Relatively low level can be maintained with the temperature of oil film.

Bearing of the prior art, the second oil pocket that it is used for cooling oil heat exchange is single-chamber form, and oil duct path is short, no It is easy to expand, it is impossible to carry out later stage thermal efficiency transformation.Thrust bearing of the present invention, its second oil pocket includes multiple points of chambers, The structure, can be easy to the later stage thermal efficiency in power station to transform, and cool down according to the thermal efficiency requirement an appropriate number of cooler of matching Device can be general；And can largely increase cooling oil flow passage route, and be easy to current stream in cooling oil runner and cooler Road is designed to convection current form, can largely increase the heat exchanger effectiveness of cooler.

It is an advantage of the invention that：

Thrust bearing of the present invention, it is possible to decrease oil temperature and bearing bush temperature reach 8-20 DEG C, with heat exchanger effectiveness higher, oil Temperature can be controlled in 38-45 DEG C, and bearing can keep good lubricant effect, maintains bearing shell stable friction factor, bearing friction heat production Small, cooler output is few, and generator alarm is shut down caused by being prevented effectively from high oil temperature, can be prevented effectively from bearing shell and cooling Oil temperature it is too high and cause mill watt or tile kilning phenomenon.

Brief description of the drawings

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.

In the accompanying drawings：

Fig. 1 is the structural representation of existing bearing；

Fig. 2 is the structural representation of existing cooler a7；

Fig. 3 is the structural representation of existing side ring port plate a72；

Fig. 4 is the structural representation of existing center flow channels dividing plate a73；

Fig. 5 is the cross-sectional structure schematic diagram of positive thrust disk 51 in the embodiment of the present invention one；

Fig. 6 is Section A-A schematic diagram in the embodiment of the present invention one；

Fig. 7 is the overlooking the structure diagram of one bottom bracket of the embodiment of the present invention 1；

Fig. 8 is the structural representation of thrust bearing shoe valve 42 in the embodiment of the present invention one；

Fig. 9 is band oil 9 cross section structural representations of cover in the embodiment of the present invention one；

Figure 10 is the vertical cross-section structural representation in cooler 8 and point chamber 73 in the embodiment of the present invention one；

Figure 11 is the horizontal cross-section structural representation in cooler 8 and point chamber 73 in the embodiment of the present invention one；

Figure 12 is the structural representation of apical pore port plate 83 in the embodiment of the present invention one；

Figure 13 is the structural representation of bottom outlet port plate 82 in the embodiment of the present invention one；

Figure 14 is the axial cross section structure diagram of positive thrust disk 51 in the embodiment of the present invention six；

Figure 15 is the radial direction cross section structure diagram of positive thrust disk 51 in the embodiment of the present invention six；

In figure：

A1 is bearing block, and a2 is bearing cap, and a3 is thrust bearing shoe valve, and a4 is oil pump, and a5 is the first oil pocket, and a6 is the second oil pocket, and a61 is Oil input channel, a62 is oil road, and a7 is cooler, and a71 is cooling copper tube, and a72 is side ring port plate, centered on a73 runner every Plate, a74 is side ring runner, runner centered on a75；

1 is bearing block,

2 is bearing cap,

3 is watt seat,

31 to get rid of oil pocket, and 33 is the second annular shoe cream room, and 34 is fixed screw,

42 is positive thrust watt, and 42a is segmental pad body, and 421 is thrust interface, and 422 to get rid of oil groove,

51 is positive thrust disk, and 511 is band pasta, and 512 is band oil groove, and 513 is blade,

6 is the first oil pocket,

7 is the second oil pocket, and 71 is deep fat oil inlet, and 72 is cold oil oil-out, and 73 is a point chamber,

8 is cooler, and 81 is cooling tube, and 82 is bottom outlet port plate, and 83 is apical pore port plate, and 84 is adpting flange；821 are First passage hole, 831 is second channel hole, and c1 is perforation,

9 is that band oil covers, and 91 is band oil pocket, and 911 is high-pressure oil outlet, and 912 is oil pumping mouth, and s1 is the first sealing chute, and s2 is the Two sealing chutes, 10 is main shaft.

Specific embodiment

Accompanying drawing 1 is referred to below and word content is understood between present disclosure and the present invention and prior art Distinctive points.Hereafter accompanying drawing and by way of enumerating some alternative embodiments of the invention, to technical scheme （Including optimal technical scheme）It is described in further detail.It should be noted that：Any technical characteristic in the present embodiment, appoint What technical scheme is one or more in the technical characteristic or optional technical scheme of plurality of optional, succinct in order to describe Need in presents cannot exhaustive all alternative technical characteristics of the invention and alternative technical scheme, be also not easy to The implementation method of each technical characteristic emphasizes that it is one of optional numerous embodiments, so those skilled in the art should Know：Any two that any technological means that the present invention is provided can be replaced or provide the present invention an or more skill Art means or technical characteristic are combined and obtain new technical scheme mutually.Any technical characteristic in the present embodiment and appoint What technical scheme is not limited the scope of the invention, and protection scope of the present invention should not pay including those skilled in the art Go out creative work thinkable any alternate embodiments and those skilled in the art the present invention is provided any two Individual or more technological means or technical characteristic technical scheme new obtained from being combined mutually.

It should be noted that the orientation of " front side ", " rear side ", " top ", " bottom " or " middle part " in following description is retouched State, be the orientation description of reference picture, the description of its orientation is intended merely to more clearly describe implementation method, not realizes of the invention Absolute orientation, does not limit the scope of the invention.

Embodiment one

A kind of thrust bearing, as shown in Figure 5 and Figure 6, including bearing block 1, bearing cap 2, watt seat 3, thrust bearing shoe valve 42, positive thrust disk 51st, the first oil pocket 6, the second oil pocket 7, cooler 8 and band oil cover 9；The bearing cap 2 is used to cover in the top of bearing block 1, described Watt seat 3 is fixed on bearing block 1, and grease baffle 92 is provided with the band oil pocket 91, and positive thrust disk 51 is fitted in positive thrust watt 42 Front end；First oil pocket 6 is that bearing cap 2 covers the annular seal space to be formed with bearing block 1；Second oil pocket 7 is to be arranged on axle The cavity of the bottom of bearing 1, second oil pocket 7 is located at the lower section of the first oil pocket 6, and second oil pocket 7 includes deep fat oil inlet 71 With cold oil oil-out 72, second oil pocket 7 is by the first oil pocket 6 of connection of deep fat oil inlet 71；The cooler 8 is arranged on the In two oil pockets 7；The outside diameter that positive thrust disk 51 is arranged on oil cover 9；Between the internal side diameter of the thrust bearing shoe valve 42 and watt seat 3 Annular gap cavity is to get rid of oil pocket 31；The radial outside wall of the positive thrust disk 51 is band pasta 511, band oil cover 9 and the band Band oil pocket 91 is formed between pasta 511, in a ring, side is provided with grease baffle 92, the gear to the band oil pocket 91 in band oil pocket 91 One end of oil sheet 92 is fixed on the inwall with oil cover 9, the other end sliding contact band pasta 511 of the grease baffle 92； The top with oil pocket 91 is provided with high-pressure oil outlet 911, and the bottom with oil pocket 91 is provided with oil pumping mouth 912；The band oil The oil pumping mouth 912 in chamber 91 connects the cold oil oil-out 72 of the second oil pocket 7, and the connection of high-pressure oil outlet 911 with oil pocket 91 is got rid of Oil pocket 31.

As being further elaborated with for above-mentioned implementation method, as shown in fig. 6, the outside diameter of watt seat 3 is provided with the second annular Shoe cream room 33, the oil inlet end of the second annular shoe cream room 33 connects the high-pressure oil outlet 911 with oil pocket 91, second annular Oil pocket 31 is got rid of in the oil outlet end connection of shoe cream room 33.

As being further elaborated with for above-mentioned implementation method, as shown in fig. 7, described watt of seat 3 passes through three groups of fixed screws 34 are fixed on bearing block 1.Using this kind of fixed form, can effectively prevent watt seat 3 from tilting occurring.

As being further elaborated with for above-mentioned implementation method, as shown in figure 8, the thrust bearing shoe valve 42 is discrete watt body, The leading flank of segmental pad body 42a, the segmental pad body 42a including at least two annular spreads is thrust interface 421, adjacent Gap between segmental pad body 42a is to get rid of oil groove 422.

As being further elaborated with for above-mentioned implementation method, as shown in figure 9, the band pasta 511 is provided with for sealing The first sealing chute s1, the rear side end of the band oil cover 9 connect by the first sealing chute s1 with band pasta 511 sealing Touch, main shaft 10 is provided with the second sealing chute s2, the front side end with oil cover 9 is sealed with main shaft 10 by the second sealing chute s2 and connect Touch.

Used as being further elaborated with for above-mentioned implementation method, the deep fat oil inlet 71 and cold oil oil-out 72 are respectively positioned on The side end portion of the second oil pocket 7.

Used as being further elaborated with for above-mentioned implementation method, as shown in Figure 10 and Figure 11, second oil pocket 7 includes eight Individual point of chamber 73, each point of chamber 73 serial communication is provided with cooler 8 in each point of chamber 73, the runner of each cooler 8 leads to Serial communication is crossed, the liquid flow path direction of each cooler 8 is in opposite direction with oil stream in each point of chamber 73；The cooler 8 includes cold But pipe 81, bottom outlet port plate 82 and apical pore port plate 83, the cooling tube 81 are respectively arranged at two ends with adpting flange 84；Institute Bottom outlet port plate 82 and apical pore port plate 83 are stated perpendicular to cooling tube 81, the bottom outlet port plate 82 and apical pore runner every Plate 83 is spaced apart, and as shown in Figure 12 and Figure 13, the bottom of the bottom outlet port plate 82 is provided with first passage hole 821, described The top of apical pore port plate 83 is provided with the plate in second channel hole 831, the bottom outlet port plate 82 and apical pore port plate 83 Face is distributed with the perforation c1 for interting cooling tube 81, and cooling tube 81 is interspersed in bottom outlet port plate 82 and top by the c1 that perforates In hole port plate 83；The cooler 8 includes at least two cooling tubes 81, and the inner flow passage of the cooling tube 81 is in parallel, and jointly It is connected to adpting flange 84；The sum of bottom outlet port plate 82 and apical pore port plate 83 in the cooler 8 is three.

It is as shown in table 1 below in the test of the thrust bearing shoe valve 42 and oil temperature of bearing using above-described embodiment implementation method, After operation two hours, the temperature of thrust bearing shoe valve 42 tends towards stability within 41 DEG C, and the oil temperature in thrust bearing shoe valve 42 tends towards stability on 36 DEG C of left sides It is right；Relative to existing conventional bearing, its bearing shell can be reduced up to 9 DEG C, and oil temperature can be reduced up to 14 DEG C.

Positive thrust watt is numbered	1	2	3	4	5	Oil temperature
							Initial temperature（℃）	26.6	26.4	26.5	26.7	26.6	26.3
1h(℃)	30.7	31.1	30.4	31.3	30.8	30.6
							2h(℃)	37.9	38.2	38.8	38.9	39.3	35.8
3h(℃)	39.3	40.1	39.2	40.8	40.5	36.2

Table 1

Embodiment two

It is with the difference of embodiment one：As shown in Figure 14 and Figure 15, the band oil groove 512 that annular is provided with pasta 511, Annular is distributed with blade 513 in the band oil groove 512.This kind of structure is taken, the oil pressure of high-pressure oil outlet 911 can be improved, so that Increase the rate of circulating flow of cooling oil；In oil temperature test, temperature when oil temperature tends towards stability.

It is as shown in table 1 below in the test of the thrust bearing shoe valve 42 and oil temperature of bearing using above-described embodiment implementation method, After operation two hours, the temperature of thrust bearing shoe valve 42 tends towards stability within 40.5 DEG C, and the oil temperature in thrust bearing shoe valve 42 tends towards stability at 35 DEG C Left and right.

Embodiment three

It is with the difference of embodiment one：Second oil pocket 7 includes two point chambers 73 of horizontal alignment, each point of chamber 73 Serial communication, is provided with cooler 8 in each point of chamber 73, the runner of each cooler 8 passes through serial communication.Each cooling The liquid flow path direction of device 8 is identical with oil stream direction in each point of chamber 73.The cooler 8 includes at least two cooling tubes 81, described cold But the inner flow passage of pipe 81 is in parallel, and is commonly connected to adpting flange 84；Bottom outlet port plate 82 and apical pore stream in the cooler 8 The sum of road dividing plate 83 is three.

Using above-described embodiment implementation method, it is as shown in table 1 below in the test of the thrust bearing shoe valve 42 and oil temperature of bearing, After operation two hours, the temperature of thrust bearing shoe valve 42 tends towards stability within 44.5 DEG C, and the oil temperature in thrust bearing shoe valve 42 tends towards stability 38.5 DEG C or so.

Example IV

It is with the difference of embodiment one：Second oil pocket 7 includes two point chambers 73 of horizontal alignment, each point of chamber 73 Serial communication, is provided with cooler 8 in each point of chamber 73, the runner of each cooler 8 passes through serial communication.Each cooling The liquid flow path direction of device 8 is identical with oil stream direction in each point of chamber 73.The cooler 8 includes at least two cooling tubes 81, described cold But the inner flow passage of pipe 81 is in parallel, and is commonly connected to adpting flange 84；Bottom outlet port plate 82 and apical pore stream in the cooler 8 The sum of road dividing plate 83 is eight.

Using above-described embodiment implementation method, it is as shown in table 1 below in the test of the thrust bearing shoe valve 42 and oil temperature of bearing, After operation two hours, the temperature of thrust bearing shoe valve 42 tends towards stability within 43.5 DEG C, and the oil temperature in thrust bearing shoe valve 42 tends towards stability 37.5 DEG C or so.

Any technical scheme disclosed in the invention described above unless otherwise stated, if it discloses number range, then Disclosed number range is preferred number range, it is any it should be appreciated by those skilled in the art：Preferred number range The only obvious or representative numerical value of technique effect in many enforceable numerical value.Because numerical value is more, it is impossible to Exhaustion, so just open component values of the invention are to illustrate technical scheme, also, the above-mentioned numerical value enumerated is not The limitation to the invention protection domain should be constituted.

If the words such as " first ", " second " are used herein to limit parts, those skilled in the art should This knows：" first ", the use of " second " are intended merely to facilitate in description and parts are distinguished such as no Stated otherwise Outward, above-mentioned word does not have special implication.

In addition, the art for representing position relationship or shape applied in any technical scheme disclosed in the invention described above Its implication includes approximate with its, similar or close state or shape to language unless otherwise stated.Any part that the present invention is provided Both can be to be assembled by multiple individually parts, it is also possible to the separate part that the technique that is one of the forming is manufactured.

Finally it should be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention rather than its limitations；To the greatest extent Pipe has been described in detail with reference to preferred embodiment to the present invention, and those of ordinary skill in the art should be understood：Still Specific embodiment of the invention can be modified or equivalent is carried out to some technical characteristics；Without deviating from this hair The spirit of bright technical scheme, it all should cover in the middle of claimed technical scheme scope of the invention.

Claims

1. a kind of thrust bearing, is characterised by, including bearing block（1）, bearing cap（2）, watt seat（3）, thrust bearing shoe valve（42）, positive thrust Disk（51）, the first oil pocket（6）, the second oil pocket（7）, cooler（8）Covered with band oil（9）, the bearing cap（2）For covering in axle Bearing（1）Top, described watt of seat（3）It is fixed on bearing block（1）On, the band oil pocket（91）Inside it is provided with grease baffle（92）, just push away Power disk（51）It is fitted in positive thrust watt（42）Front end, first oil pocket（6）It is bearing cap（2）With bearing block（1）Cover shape Into annular seal space, second oil pocket（7）To be arranged on bearing block（1）The cavity of bottom, the second oil pocket（7）Positioned at the first oil pocket （6）Lower section, the second oil pocket（7）Comprising deep fat oil inlet（71）With cold oil oil-out（72）, the second oil pocket（7）By deep fat oil-feed Mouthful（71）Connect the first oil pocket（6）, the cooler（8）Installed in the second oil pocket（7）Interior, the band oil covers（9）Installed in just Thrust disc（51）Outside diameter, the thrust bearing shoe valve（42）Internal side diameter and watt seat（3）Between annular gap cavity to get rid of oil pocket （31）, the positive thrust disk（51）Radial outside wall be band pasta（511）, the band oil cover（9）With band pasta（511）Between Form band oil pocket（91）, band oil pocket（91）In a ring, band oil pocket（91）Inside it is provided with grease baffle（92）, grease baffle（92）One end consolidate The band oil is scheduled on to cover（9）Inwall on, grease baffle（92）The other end sliding contact band pasta（511）, band oil pocket（91）'s Top is provided with high-pressure oil outlet（911）, band oil pocket（91）Bottom be provided with oil pumping mouth（912）, band oil pocket（91）Oil pumping mouthful （912）Connect the second oil pocket（7）Cold oil oil-out（72）, band oil pocket（91）High-pressure oil outlet（911）Oil pocket is got rid of in connection （31）.

2. thrust bearing according to claim 1, it is characterised in that described watt of seat（3）Outside diameter be provided with second annular Shoe cream room（33）, the band oil pocket（91）High-pressure oil outlet（911）By the second annular shoe cream room（33）Oil pocket is got rid of in connection （31）.

3. thrust bearing according to claim 1, it is characterised in that described watt of seat（3）By at least two groups fixed screws （34）It is fixed on bearing block（1）On.

4. thrust bearing according to claim 1, it is characterised in that the thrust bearing shoe valve（42）It is discrete watt body, including The segmental pad body of at least two annular spreads（42a）, the segmental pad body（42a）Leading flank be thrust interface（421）, phase Adjacent segmental pad body（42a）Between gap to get rid of oil groove（422）.

5. thrust bearing according to claim 1, it is characterised in that the band pasta（511）Be provided with for seal the One sealing chute（s1）, the band oil cover（9）Rear side end by first sealing chute（s1）With the band pasta（511）Sealing Contact, main shaft（10）It is provided with the second sealing chute（s2）, band oil cover（9）Front side end by second sealing chute（s2）With main shaft （10）It is in sealing contact.

6. thrust bearing according to claim 1, it is characterised in that second oil pocket（7）Comprising at least one point of chamber （73）, each point of chamber（73）Serial communication, each point of chamber（73）Cooler is inside installed（8）, each cooler（8）Stream Road is by serial communication, each cooler（8）Liquid flow path direction and each point of chamber（73）Interior oil stream is in opposite direction.

7. thrust bearing according to claim 1, it is characterised in that the cooler（8）Including cooling tube（81）, bottom outlet Port plate（82）With apical pore port plate（83）, the cooling tube（81）Two ends be connected to adpting flange（84）；Institute State bottom outlet port plate（82）With apical pore port plate（83）It is spaced apart, the bottom outlet port plate（82）Bottom be provided with One access opening（821）, the apical pore port plate（83）Top be provided with second channel hole（831）, the bottom outlet port plate （82）With apical pore port plate（83）Plate face be distributed with for interting cooling tube（81）Perforation（c1）, cooling tube（81）Pass through Perforation（c1）It is interspersed in bottom outlet port plate（82）With apical pore port plate（83）On.

8. thrust bearing according to claim 1, it is characterised in that the cooler（8）Comprising at least two cooling tubes （81）, each cooling tube（81）Parallel connection, each cooling tube（81）Water inlet end jointly connection one adpting flange（84）, each cooling tube （81）Water side be commonly connected to another adpting flange（84）.

9. thrust bearing according to claim 1, it is characterised in that the bearing block（1）, bearing cap（2）With a watt seat（3） Made using welding procedure and be molded.