CN114484253B - Lubricating oil circulation system for mirror plate pump bearing - Google Patents
Lubricating oil circulation system for mirror plate pump bearing Download PDFInfo
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- CN114484253B CN114484253B CN202210047017.7A CN202210047017A CN114484253B CN 114484253 B CN114484253 B CN 114484253B CN 202210047017 A CN202210047017 A CN 202210047017A CN 114484253 B CN114484253 B CN 114484253B
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- oil
- mirror plate
- groove
- circulation system
- pump
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/06—Bearing arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N21/00—Conduits; Junctions; Fittings for lubrication apertures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N31/00—Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus
- F16N31/02—Oil catchers; Oil wipers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/14—Bearings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model relates to the technical field of power generation equipment bearing lubrication, in particular to a lubricating oil circulation system for a mirror plate pump bearing, which comprises a thrust head, a mirror plate, a thrust shoe, a bearing seat, an inter-shoe oil distribution system, an oil groove, a lubricating oil cooler and an oil suction pipeline, wherein the oil groove is formed in the bearing seat; the mirror plate is provided with a pump hole for establishing pressure; a circle of first oil collecting grooves are formed in the inner side of the mirror plate, and a circle of second oil collecting grooves are formed in the outer side of the mirror plate; the first oil collecting groove and the second oil collecting groove are both fixed on the bearing seat; one end of the oil suction pipeline is connected with the first oil collecting tank, and the other end of the oil suction pipeline sags and stretches into the position below the oil level of the oil tank; the second oil collecting groove is connected with the lubricating oil cooler through an oil groove oil outlet pipe. Through this circulation system, can effectively solve the problem of pump break, the bearing security is higher.
Description
Technical Field
The utility model relates to the technical field of power generation equipment bearing lubrication, in particular to a lubricating oil circulation system for a mirror plate pump bearing.
Background
The conventional hydraulic generator bearing lubrication generally adopts a soaking type operation mode, namely, when a unit is operated, the bearing bush is always soaked in lubricating oil, and the safe operation of the bearing bush can be met only by ensuring that the circulating oil quantity of the bearing is sufficient. However, the immersed bearing is more severely stirred with the lubricating oil of the oil groove during operation, and oil mist of the oil groove is easily generated. In addition, the loss of the soaking type bearing is large.
In the prior art, a Chinese patent document with a publication number of CN205779433U and a publication date of 2016, 12 and 07 is proposed, and the technical scheme disclosed in the patent document is as follows: the combined bearing oil supply device comprises an oil groove, a thrust bearing bush, a mirror plate pump, a thrust head, a guide bearing bush and a high-pressure oil tank, wherein the mirror plate pump is arranged above the thrust bearing bush, the mirror plate pump and the thrust bearing bush are immersed in oil in the oil groove, an oil outlet of the mirror plate pump is connected with an oil inlet end of an oil outlet pipe of the mirror plate pump, the oil outlet pipe of the mirror plate pump is connected with an oil inlet pipe of the high-pressure oil tank and an oil inlet pipe of the oil groove in parallel, the oil inlet pipe of the high-pressure oil tank is connected with the high-pressure oil tank, and an oil outlet of the high-pressure oil tank is connected with the guide bearing bush through an oil supply pipe of the guide bearing to form a loop; the oil inlet pipe of the oil groove is connected with the thrust bearing bush to form a loop.
In the practical use process, the following problems can occur: the thrust bearing bush still adopts a soaking type operation mode, and the mirror plate pump of the thrust bearing bush is required to be soaked in oil in the operation process.
In order to effectively reduce oil mist generation of an oil groove of the immersed bearing and reduce loss of the bearing, a lubrication mode of the low-liquid-level bearing provided in the prior art can be realized only by using an external pump.
In the prior art, a Chinese patent document with an authorized publication number of CN104251374B and an authorized publication date of 2017, 01 and 04 is provided, and the technical scheme disclosed in the patent document is as follows: a method of reducing churning losses in a combined thrust bearing comprising the steps of: a. injecting lubricating oil into the oil groove to enable the guide bearing bush to be soaked in the lubricating oil; b. arranging a high-level oil tank with a one-way exhaust valve, injecting lubricating oil in an oil tank into the high-level oil tank by using an oil supply pump, and injecting the lubricating oil between a mirror plate and a thrust shoe and/or between a bearing thrust head and a guide bearing shoe through the high-level oil tank, so that the lubricating oil circulates between the oil tank and the high-level oil tank, wherein the oil inlet amount of the high-level oil tank is larger than the oil outlet amount of the high-level oil tank; c. along with the increase of the oil quantity in the high-level oil tank, the oil discharge quantity of the high-level oil tank is gradually the same as the oil inlet quantity of the high-level oil tank through the one-way exhaust valve, and the lubricating oil level in the oil tank is positioned below the thrust tile.
In the practical use process, the following problems can occur: the possibility of pump breakage is easily present.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a lubricating oil circulation system for a mirror plate pump bearing, and the low liquid level spraying operation of the unit bearing is realized by utilizing a pressure head generated by a unit rotating part, so that the problem of pump breakage can be effectively solved, and the safety of the bearing is higher.
The utility model is realized by adopting the following technical scheme:
a lubricating oil circulation system for mirror plate pump bearing, includes thrust collar, mirror plate, thrust tile, bearing frame, inter-tile oil distribution system and oil groove, be equipped with the pump hole that is used for establishing pressure on the mirror plate, its characterized in that: the device also comprises a lubricating oil cooler and an oil suction pipeline; a circle of first oil collecting grooves are formed in the inner side of the mirror plate, and a circle of second oil collecting grooves are formed in the outer side of the mirror plate; the first oil collecting groove and the second oil collecting groove are both fixed on the bearing seat; one end of the oil suction pipeline is connected with the first oil collecting tank, and the other end of the oil suction pipeline sags and stretches into the position below the oil level of the oil tank; the second oil collecting groove is connected with the lubricating oil cooler through an oil groove oil outlet pipe.
The pump Kong Waijing side of mirror board is opened and is had a moisturizing inclined hole rather than linking to each other, install stifled ball, closure plate and backup pad in the moisturizing inclined hole, closure plate and backup pad interval set up and are located the inside and outside both sides of stifled ball respectively.
The blocking plate and the oil supplementing inclined hole are surrounded to form a stepped through hole.
One end of the through hole is conical and matched with the blocking ball.
The oil supplementing inclined hole is in a variable diameter shape, and the inner diameter of the plugging plate installation area is larger than that of the supporting plate installation area.
The lubricating oil cooler is integrated with a plurality of heat pipes, one end of each heat pipe is positioned in the lubricating oil cooler, and the other end of each heat pipe is positioned in a cold air path of a rotor of the same unit.
The lubricating oil cooler is fixed on the sealing cover plate of the oil groove, oil mist in the oil groove is accumulated and condensed by the lubricating oil cooler, and finally falls back to the oil groove to participate in the circulating operation of the unit again.
The first and second oil sumps are made of polytetrafluoroethylene.
The intertile oil distribution system comprises a plurality of branch pipes, the number of the branch pipes is matched with the number of the blocks of the thrust tiles, one end of each branch pipe is connected with the lubricating oil cooler, the other end of each branch pipe is communicated with the space between the thrust tiles and is located below the mirror plate, and the oil outlets of the branch pipes are located towards one face of the mirror plate.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model can realize low liquid level spraying operation of the unit bearing by utilizing the pressure head generated by the unit rotating part, is beneficial to reducing the input of peripheral equipment, and has higher bearing safety because of no possibility of pump breakage. The first oil collecting groove and the second oil collecting groove are respectively positioned at the inner side and the outer side of the mirror plate and are fixed on the bearing seat, and the oil collecting groove belongs to a static part, can reduce oil suction pipe rotation oil stirring and reduce oil mist.
2. The pump Kong Waijing side of mirror board is opened and is had a benefit oily inclined hole rather than linking to each other, install stifled ball, closure plate and backup pad in the benefit oily inclined hole, can effectively guarantee the normal operating of mirror board pump. When the unit is stationary, the blocking ball moves on the supporting plate due to gravity, the oil supplementing inclined hole is communicated with the pump hole of the mirror plate, so that the mirror plate pump is ensured to realize oil filling, and the pressure is easier to build; after the unit is started, the blocking ball and the blocking plate separate the oil supplementing inclined hole from the outside together under the action of centrifugal force, so that the pressure relief of the pump hole of the mirror plate is avoided.
3. The blocking plate and the oil supplementing inclined hole are surrounded to form a stepped through hole, so that the blocking ball and the blocking plate are good in matching effect, and particularly one end of the through hole is a conical hole matched with the blocking ball, and the partition effect is further improved.
4. The oil supplementing inclined hole is in a reducing shape, and the inner diameter of the plugging plate installation area is larger than that of the supporting plate installation area, so that the plugging ball can be sealed, oil passing is not affected, the supporting plate can prevent the plugging ball from falling, and oil passing is not affected.
5. The utility model can take away the heat of the hot oil in the bearing oil groove by means of cold air in the cold air passage of the unit rotor, and then supply the heat to the bearing bush for lubrication and cooling, so that the temperature of the lubricating oil in the oil groove is kept within a reasonable range. Compared with the conventional oil-water cooler, the utility model reduces the cooling water supply and the pipeline arrangement by utilizing the self air quantity of the unit, and has simple structure; in addition, the problem of leakage of cooling water does not exist, and the cooling water supply pressure unit is more powerful. Meanwhile, the oil-water mixing detection device can be omitted.
6. The oil cooler is fixed on the sealed apron of oil groove, and the oil mist in the oil groove runs into colder oil cooler and gathers the condensation, finally falls back the oil groove and participate in unit circulation operation once more, and oil cooler's arrangement selection can prevent the gathering of oil mist, reduces the excessive of unit oil mist.
7. The first oil collecting groove and the second oil collecting groove are made of polytetrafluoroethylene, and the lubricating performance of the first oil collecting groove and the second oil collecting groove in contact with the mirror plate is good.
8. The structure of the inter-tile oil distribution system enables oil of the lubricating oil cooler to be directly sprayed onto the mirror plate surface.
Drawings
The utility model will be described in further detail with reference to the drawings and detailed description, wherein:
FIG. 1 is a schematic diagram of the structure of the present utility model (wherein A represents an initial stationary liquid level, B represents a slip lubrication surface; C represents a normal working liquid level);
FIG. 2 is an enlarged schematic view of the region Y in the present utility model;
the marks in the figure:
1. thrust head, 2, mirror plate, 3, first oil collecting groove, 4, oil suction pipeline, 5, thrust tile, 6, bearing frame, 7, inter-tile oil distribution system, 8, oil groove, 9, second oil collecting groove, 10, oil groove oil outlet pipe, 11, lubricating oil cooler, 12, heat pipe, 13, branch pipe, 14, blocking ball, 15, oil supplementing inclined hole, 16, blocking plate, 17, backup pad, 18, cold air wind path, 19, unit rotor.
Detailed Description
Example 1
As a basic embodiment of the present utility model, the present utility model includes a lubrication oil circulation system for a mirror plate pump bearing, including a thrust collar 1, a mirror plate 2, a thrust shoe 5, a bearing housing 6, a lubrication oil cooler 11, an inter-shoe oil distribution system 7, an oil groove 8, and an oil suction line 4. The mirror plate 2 is provided with pump holes for creating pressure. A circle of first oil collecting grooves 3 are arranged on the inner side of the mirror plate 2, and a circle of second oil collecting grooves 9 are arranged on the outer side of the mirror plate 2; the first oil sump 3 and the second oil sump 9 are both fixed to the bearing housing 6. One end of the oil suction pipeline 4 is connected with the first oil collecting tank 3, and the other end of the oil suction pipeline sags into the oil tank 8 below the oil level. The second oil sump 9 is connected to the lubricating oil cooler 11 via an oil sump outlet pipe 10.
During normal operation, the oil level of the oil groove 8 is below the sliding lubrication surface, the unit thrust head 1 drives the mirror plate 2 to rotate, oil sucked from the oil groove 8 by the oil suction pipeline 4 passes through the first oil collecting groove 3, enters the oil groove oil outlet pipe 10 through the second oil collecting groove 9 after being rotationally pressurized by a pump hole on the mirror plate 2, enters the lubrication oil cooler 11 to build pressure, and then the inter-tile oil distribution system 7 directly sprays cold oil between the mirror plate 2 and the thrust tile 5 to form an oil film so as to meet lubrication requirements.
Before the unit starts, the initial static liquid level of the oil groove 8 is positioned above the mirror plate 2, and the pump holes of the mirror plate 2 are filled with oil so as to be convenient for establishing pressure. After the machine set is started, the liquid level can be reduced to a normal working liquid level below the sliding lubrication surface, the normal working liquid level is below the surface of the mirror plate 2, and at the moment, the mirror plate 2 is higher than the liquid level of the oil groove 8. But the oil suction pipeline 4 still goes deep under the liquid level of the lubricating oil, so that the normal operation of the whole oil circulation is ensured.
Example 2
As a preferred embodiment of the present utility model, the present utility model includes a lubricating oil circulation system for a mirror plate pump bearing, comprising a thrust head 1, a mirror plate 2, a thrust shoe 5, a bearing housing 6, a lubricating oil cooler 11, an inter-shoe oil distribution system 7, an oil groove 8 and an oil suction pipe 4. The mirror plate 2 is provided with pump holes for creating pressure. A circle of first oil collecting grooves 3 are arranged on the inner side of the mirror plate 2, and a circle of second oil collecting grooves 9 are arranged on the outer side of the mirror plate 2. The first oil sump 3 and the second oil sump 9 are both fixed to the bearing housing 6 and made of polytetrafluoroethylene. One end of the oil suction pipeline 4 is connected with the first oil collecting tank 3, and the other end of the oil suction pipeline sags into the oil tank 8 below the oil level. The second oil sump 9 is connected to the lubricating oil cooler 11 via an oil sump outlet pipe 10.
In order to ensure the normal operation of the pump of the mirror plate 2, an oil supplementing inclined hole 15 connected with the pump Kong Waijing side of the mirror plate 2 is arranged on the side of the pump Kong Waijing, a blocking ball 14, a blocking plate 16 and a supporting plate 17 are arranged in the oil supplementing inclined hole 15, and the blocking plate 16 and the supporting plate 17 are arranged at intervals and are respectively positioned on the inner side and the outer side of the blocking ball 14. When the unit is stationary, the blocking ball 14 moves on the supporting plate 17 due to gravity, the oil supplementing inclined hole 15 is communicated with the pump hole of the mirror plate 2, so that the pump of the mirror plate 2 is ensured to realize oil filling, and the pressure is easier to build; after the unit is started, the blocking ball 14 and the blocking plate 16 are used for blocking the oil supplementing inclined hole 15 from the outside under the action of centrifugal force, so that the pressure relief of the pump hole of the mirror plate 2 is avoided.
Example 3
As another preferred embodiment of the present utility model, the present utility model includes a lubricating oil circulation system for a mirror plate pump bearing, comprising a thrust collar 1, a mirror plate 2, a thrust shoe 5, a bearing housing 6, a lubricating oil cooler 11, an inter-shoe oil distribution system 7, an oil groove 8 and an oil suction pipe 4. The mirror plate 2 is provided with pump holes for creating pressure. A circle of first oil collecting grooves 3 are arranged on the inner side of the mirror plate 2, and a circle of second oil collecting grooves 9 are arranged on the outer side of the mirror plate 2. The first oil sump 3 and the second oil sump 9 are both fixed to the bearing housing 6. One end of the oil suction pipeline 4 is connected with the first oil collecting tank 3, and the other end of the oil suction pipeline sags into the oil tank 8 below the oil level. The second oil sump 9 is connected to the lubricating oil cooler 11 via an oil sump outlet pipe 10.
The lubricating oil cooler 11 is fixed on the sealing cover plate of the oil groove 8, a plurality of heat pipes 12 are integrated on the lubricating oil cooler 11, one end of each heat pipe 12 is positioned in the lubricating oil cooler 11, namely, in a hot oil circulation oil way of the oil groove 8, and the other end of each heat pipe is positioned in a cold air passage 18 of a unit rotor 19. The inter-shoe oil distribution system 7 comprises a plurality of branch pipes 13, and the number of the branch pipes 13 is matched with the number of the thrust tiles 5. One end of the branch pipe 13 is connected with the lubricating oil cooler 11, the other end of the branch pipe is communicated between the thrust tiles 5 and is positioned below the mirror plate 2, and the oil outlet of the branch pipe 13 is positioned on one surface facing the mirror plate 2. The oil mist in the oil groove 8 encounters the cooler lubricating oil cooler 11 to be accumulated and condensed, and finally falls back to the oil groove 8 to participate in the circulating operation of the unit again.
Example 4
As the best mode of the utility model, referring to the attached figure 1 of the specification, the utility model comprises a lubricating oil circulation system for a mirror plate pump bearing, which comprises a thrust head 1, a mirror plate 2, a thrust shoe 5, a bearing seat 6, a lubricating oil cooler 11-watt oil distribution system 7, an oil groove 8 and an oil suction pipeline 4. The mirror plate 2 is provided with pump holes for creating pressure. A circle of first oil collecting grooves 3 are arranged on the inner side of the mirror plate 2, and a circle of second oil collecting grooves 9 are arranged on the outer side of the mirror plate 2; the first oil sump 3 and the second oil sump 9 are both fixed to the bearing housing 6. One end of the oil suction pipeline 4 is connected with the first oil collecting tank 3, and the other end of the oil suction pipeline sags into the oil tank 8 below the oil level. The second oil sump 9 is connected to the lubricating oil cooler 11 via an oil sump outlet pipe 10. The first oil collecting groove 3 and the second oil collecting groove 9 belong to static components, are in contact with the mirror plate 2, are made of polytetrafluoroethylene materials with good lubricating performance, have self-adjusting capability, and can adapt to the rotation of the mirror plate 2 without pressure relief.
Referring to fig. 2 of the specification, in order to ensure the normal operation of the pump of the mirror plate 2, an oil supplementing inclined hole 15 connected with the pump Kong Waijing of the mirror plate 2 is formed on the side of the pump Kong Waijing of the mirror plate 2, a blocking ball 14, a blocking plate 16 and a supporting plate 17 are installed in the oil supplementing inclined hole 15, and the blocking plate 16 and the supporting plate 17 are arranged at intervals and are respectively positioned on the inner side and the outer side of the blocking ball 14. When the unit is stationary, the blocking ball 14 moves on the supporting plate 17 due to gravity, the oil supplementing inclined hole 15 is communicated with the pump hole of the mirror plate 2, so that the pump of the mirror plate 2 is ensured to realize oil filling, and the pressure is easier to build; after the unit is started, the blocking ball 14 and the blocking plate 16 are used for blocking the oil supplementing inclined hole 15 from the outside under the action of centrifugal force, so that the pressure relief of the pump hole of the mirror plate 2 is avoided.
In order to better ensure the normal operation of the pump of the mirror plate 2, the oil supplementing inclined hole 15 is in a reducing shape, and the inner diameter of the installation area of the blocking plate 16 is larger than that of the installation area of the supporting plate 17. The blocking plate 16 and the oil supplementing inclined hole 15 are surrounded to form a stepped through hole, and one end of the through hole is a conical hole matched with the blocking ball 14. So that the plug 14 can be sealed up without affecting the passage of oil.
The inter-shoe oil distribution system 7 comprises a plurality of branch pipes 13, wherein the number of the branch pipes 13 is matched with the number of the thrust shoes 5, and is generally consistent with the number of the thrust shoes 5. One end of each branch pipe 13 is connected with the lubricating oil cooler 11, and the other end of each branch pipe 13 is communicated with the space between the thrust tiles 5, so that each branch pipe 13 is directly communicated with the space between the thrust tiles 5 from the lubricating oil cooler 11 and is positioned below the mirror plate 2, and oil outlets of the branch pipes 13 are positioned on one surface facing the mirror plate 2, so that oil in the lubricating oil cooler 11 can be directly sprayed onto the surface of the mirror plate 2.
The lubricating oil cooler 11 takes away heat generated by bearing lubrication by adopting cold air cooling generated by rotation of the unit rotor 19. The method comprises the following steps: the lubricating oil cooler 11 is fixed on a sealing cover plate of the oil groove 8, a plurality of heat pipes 12 are integrated on the lubricating oil cooler 11, one part of the heat pipes 12 is positioned in the lubricating oil cooler 11, namely, in a hot oil circulation oil way of the oil groove 8, and the other part of the heat pipes is positioned in a cold air way 18 of a unit rotor 19. The heat generated by lubrication of the oil groove 8 causes the medium of the heat pipe 12 to evaporate, and the unit cold air takes away the heat and condenses the medium in the heat pipe 12; the cyclic action of the heat pipes 12, which are evaporated and condensed, keeps the temperature of the lubricating oil in the oil sump 8 within a reasonable range. The oil mist in the oil groove 8 encounters the cooler lubricating oil cooler 11 to be accumulated and condensed, and finally falls back to the oil groove 8 to participate in the circulating operation of the unit again. The arrangement of the lubricating oil cooler 11 can effectively prevent the aggregation of oil mist and reduce the overflow of the unit oil mist.
After the unit is started, the oil suction pipeline 4 sucks up oil from the oil groove 8, the oil enters the oil groove oil outlet pipe 10 through the first oil collecting groove 39 after being rotationally pressurized by the pump hole on the mirror plate 2 through the first oil collecting groove 3, and enters the oil cooler 11 for cooling, and then enters the oil distribution system 7 between the adjacent thrust tiles 5 watts to spray the cooled lubricating oil between the mirror plate 2 and the thrust tiles 5 to form an oil film, so that the lubricating requirement is met. Before the unit starts, the initial static liquid level of the oil groove 8 is positioned above the mirror plate 2, and the pump holes of the mirror plate 2 are filled with oil so as to be convenient for establishing pressure. After the machine set is started, the liquid level can be reduced to a normal working liquid level below the sliding lubrication surface, the normal working liquid level is below the surface of the mirror plate 2, and at the moment, the mirror plate 2 is higher than the liquid level of the oil groove 8. But the oil suction pipeline 4 still goes deep under the liquid level of the lubricating oil, so that the normal operation of the whole oil circulation is ensured.
In view of the foregoing, it will be appreciated by those skilled in the art that, after reading the present specification, various other modifications can be made in accordance with the technical scheme and concepts of the present utility model without the need for creative mental efforts, and the modifications are within the scope of the present utility model.
Claims (9)
1. A lubricating oil circulation system for mirror plate pump bearing, includes thrust collar (1), mirror plate (2), thrust tile (5), bearing frame (6), oil distribution system (7) and oil groove (8) between the tile, be equipped with the pump hole that is used for establishing pressure on mirror plate (2), its characterized in that: the device also comprises a lubricating oil cooler (11) and an oil suction pipeline (4); a circle of first oil collecting grooves (3) are formed in the inner side of the mirror plate (2), and a circle of second oil collecting grooves (9) are formed in the outer side of the mirror plate (2); the first oil collecting groove (3) and the second oil collecting groove (9) are both fixed on the bearing seat (6); one end of the oil suction pipeline (4) is connected with the first oil collecting tank (3), and the other end of the oil suction pipeline sags to extend below the oil level of the oil tank (8); the second oil collecting groove (9) is connected with the lubricating oil cooler (11) through an oil groove oil outlet pipe (10).
2. A lubrication oil circulation system for a mirror plate pump bearing according to claim 1, wherein: the oil supplementing inclined hole (15) connected with the pump Kong Waijing side of the mirror plate (2) is formed in the side of the pump Kong Waijing, the oil supplementing inclined hole (15) is internally provided with a blocking ball (14), a blocking plate (16) and a supporting plate (17), and the blocking plate (16) and the supporting plate (17) are arranged at intervals and are respectively positioned at the inner side and the outer side of the blocking ball (14).
3. A lubrication oil circulation system for a mirror plate pump bearing according to claim 2, wherein: the blocking plate (16) and the oil supplementing inclined hole (15) are surrounded to form a stepped through hole.
4. A lubrication oil circulation system for a mirror plate pump bearing according to claim 3, wherein: one end of the through hole is in a conical shape matched with the blocking ball (14).
5. A lubrication oil circulation system for a mirror plate pump bearing according to claim 2 or 4, characterized in that: the oil supplementing inclined hole (15) is in a variable diameter shape, and the inner diameter of the installation area of the blocking plate (16) is larger than that of the installation area of the supporting plate (17).
6. A lubrication oil circulation system for a mirror plate pump bearing according to claim 1, wherein: a plurality of heat pipes (12) are integrated on the lubricating oil cooler (11), one end of each heat pipe (12) is positioned in the lubricating oil cooler (11), and the other end of each heat pipe is positioned in a cold air passage (18) of a rotor (19) of the same unit.
7. A lubrication oil circulation system for a mirror plate pump bearing according to claim 1, wherein: the oil cooler (11) is fixed on a sealing cover plate of the oil groove (8), oil mist in the oil groove (8) is accumulated and condensed by the oil cooler (11), and finally falls back to the oil groove (8) to participate in the circulating operation of the unit again.
8. A lubrication oil circulation system for a mirror plate pump bearing according to claim 1, wherein: the first oil collecting groove (3) and the second oil collecting groove (9) are made of polytetrafluoroethylene.
9. A lubrication oil circulation system for a mirror plate pump bearing according to claim 8, wherein: the inter-tile oil distribution system (7) comprises a plurality of branch pipes (13), the number of the branch pipes (13) is matched with the number of the thrust tiles (5), one end of each branch pipe (13) is connected with the lubricating oil cooler (11), the other end of each branch pipe is communicated with the space between the thrust tiles (5) and is located below the mirror plate (2), and the oil outlets of the branch pipes (13) are located on one face facing the mirror plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210047017.7A CN114484253B (en) | 2022-01-17 | 2022-01-17 | Lubricating oil circulation system for mirror plate pump bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210047017.7A CN114484253B (en) | 2022-01-17 | 2022-01-17 | Lubricating oil circulation system for mirror plate pump bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114484253A CN114484253A (en) | 2022-05-13 |
| CN114484253B true CN114484253B (en) | 2023-08-25 |
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