WO2019227541A1 - 一种提升机天轮轴、提升机天轮及其润滑装置 - Google Patents

一种提升机天轮轴、提升机天轮及其润滑装置 Download PDF

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Publication number
WO2019227541A1
WO2019227541A1 PCT/CN2018/092116 CN2018092116W WO2019227541A1 WO 2019227541 A1 WO2019227541 A1 WO 2019227541A1 CN 2018092116 W CN2018092116 W CN 2018092116W WO 2019227541 A1 WO2019227541 A1 WO 2019227541A1
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WO
WIPO (PCT)
Prior art keywords
oil
oil injection
hoist
wheel
hoist wheel
Prior art date
Application number
PCT/CN2018/092116
Other languages
English (en)
French (fr)
Inventor
寇子明
郭永存
吴娟
杨建伟
杨芬
李腾宇
Original Assignee
太原理工大学
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Filing date
Publication date
Application filed by 太原理工大学 filed Critical 太原理工大学
Priority to AU2018425856A priority Critical patent/AU2018425856B2/en
Publication of WO2019227541A1 publication Critical patent/WO2019227541A1/zh
Priority to US16/862,799 priority patent/US10859204B2/en

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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
    • F16N7/40—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 in a closed circulation system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B15/00—Main component parts of mining-hoist winding devices
    • B66B15/02—Rope or cable carriers
    • B66B15/04—Friction sheaves; "Koepe" pulleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B15/00—Main component parts of mining-hoist winding devices
    • B66B15/02—Rope or cable carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • 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
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/1045—Details of supply of the liquid to the bearing
    • F16C33/1055—Details of supply of the liquid to the bearing from radial inside, e.g. via a passage through the shaft and/or inner sleeve
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/02—Hoists or accessories for hoists
    • B66D2700/026—Pulleys, sheaves, pulley blocks or their mounting
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/58—Conveyor systems, e.g. rollers or bearings therefor
    • 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/63—Gears with belts and pulleys
    • 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
    • F16N2210/12—Gearings

Definitions

  • the invention relates to a mine hoisting system, in particular to a hoist wheel shaft, a hoist wheel and a lubricating device thereof.
  • the hoist wheel is a fixed pulley that regulates the movement direction of the wire rope at the top of the derrick of the mine shaft. It is used to support the wire rope connecting the hoist drum and the lifting container and guide the wire rope to turn.
  • the most widely used is the traveling sky wheel, which can well adapt to the lifting system with multiple steel ropes. Due to the poor air quality in the mine area, the lubricating oil conditions between the traveling wheel and the shaft of the hoist wheel of the hoist are poor, which results in that the hoist wheel, the wheel or the bearing pad between the hoist wheel and the wheel is more prone to wear. , Short life. In order to improve the service life, the industry also uses a variety of methods to improve lubrication, but the results are not ideal or the lubrication process will affect the operation of the elevator wheel.
  • the embodiments of the present invention are expected to provide a hoist wheel shaft, a hoist wheel and a lubricating device thereof, which can automatically lubricate between the traveling wheel and the hoist wheel shaft without affecting the hoist wheel. run.
  • An embodiment of the present invention provides a hoist wheel shaft.
  • the hoist wheel shaft is provided with a first oil injection channel extending axially, and an oil inlet of the first oil injection channel is opened on the hoist wheel shaft.
  • the hoist wheel shaft further comprises at least one second oil injection flow path opened radially, the at least one second oil injection flow path intersects with the first oil injection flow path, and the at least one second oil injection flow path
  • the oil outlet of the channel is opened on the outer circular surface of the hoist wheel shaft.
  • the diameter of the two or more second oil injection flow paths is set so that the lubricating oil flows from the first oil injection flow path.
  • the flow rate of the two or more second injection runners is the same.
  • An embodiment of the present invention further provides a hoist wheel, including any of the hoist wheel shafts described above, bearing seats installed at both ends of the hoist wheel shaft, and sleeved on the hoist wheel shaft. And the fixed wheels in the circumferential direction and at least one movable wheel sleeved on the hoist wheel shaft; the number of the second oil injection flow channels is the same as the number of the movable wheels, and the second oil injection flow The position of the oil outlet of the channel corresponds to the cruise wheel.
  • the bearing seat is provided with a rolling bearing that cooperates with the hoist wheel shaft and a bearing end cover that protects the rolling bearing; at least one of the bearing end covers is provided with a first communicating with the first oil injection flow channel.
  • the oil injection hole, the position of the first oil injection hole corresponds to the oil inlet of the first oil injection channel.
  • the oil inlet of the first oil injection channel is connected to the first oil injection hole through an oil injection joint pipe, one end of the oil injection joint pipe is fixed to the bearing end cover, and one end extends into the first oil injection pipe. Runner.
  • a sealing slip ring is sleeved at one end of the oil injection joint pipe protruding into the first oil injection flow path, and an outer circular surface of the seal slip ring is interference-fitted to an inner wall of the first oil injection flow path.
  • the inner wall of the seal slip ring is fitted to the outer circular surface of the oil injection joint pipe.
  • the bearing end cover is further provided with a second oil injection hole for lubricating the rolling bearing and an oil suction hole for recovering waste lubricating oil.
  • the oil outlet of the second oil injection hole corresponds to the rolling body of the rolling bearing.
  • the oil suction port of the oil suction hole is located at the rolling body that is 180 degrees circumferentially away from the oil outlet of the second oil injection hole.
  • a seal ring for preventing the loss of lubricating oil is sleeved on the hoist wheel shaft of the hoisting wheel between the traveling wheel and the fixed wheel or between the two traveling wheels, and the sealing ring is also provided with a convenient drain.
  • An embodiment of the present invention also provides a lubricating device for a hoist wheel, including any of the hoist wheel, the oil injection pump and the oil suction pump described above;
  • the oil injection pump is used for regularly and quantitatively injecting lubricating oil to the hoist wheel;
  • the oil suction pump is used to recover waste lubricating oil in the hoist wheel
  • An oil outlet of the oil injection pump is connected to the elevator wheel of the elevator through an oil injection pipe, and an oil inlet of the oil suction pump is connected to the elevator wheel of the elevator through an oil suction pipe.
  • the oil injection pump is further provided with a bubble generating device, and the bubble generating device is used to add an inert gas to the lubricating oil.
  • An embodiment of the present invention provides a hoist wheel shaft, a hoist wheel and a hoist wheel lubrication device.
  • the hoist wheel shaft is provided with a first oil injection channel extending axially, and the first oil injection channel
  • the oil inlet is opened at the end surface of the hoist wheel shaft;
  • the hoist wheel shaft further includes at least one second oil injection flow channel opened radially, the at least one second oil injection flow channel and the first oil injection channel
  • the flow passages intersect, and the oil outlet of the at least one second oil injection flow passage is opened on the outer circular surface of the hoist wheel shaft; it can be seen that the embodiment of the present invention passes the first axial oil injection flow path on the hoist wheel shaft
  • the radial second oil injection channel and the oil injection pump automatically lubricate between the traveling wheel and the hoist wheel shaft, without affecting the operation of the hoist wheel.
  • FIG. 1 is a schematic diagram of an elevator wheel shaft of an embodiment of the present invention
  • FIG. 2 is a schematic diagram of determining a diameter of a second oil injection flow channel in a hoist wheel shaft of an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a hoist wheel of an embodiment of the present invention.
  • FIG. 4 is an assembly schematic diagram of an oil injection joint pipe in a bearing end cap in a hoist wheel of an embodiment of the present invention
  • FIG. 5 is a schematic diagram of an oil injection joint pipe in a hoist wheel of an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a bearing cover of a movable wheel end in a hoist wheel of an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a fixed wheel end bearing end cover in a hoist wheel in an embodiment of the present invention.
  • FIG. 8 is an overall schematic diagram of a lubricating device for a hoist wheel of an embodiment of the present invention.
  • An embodiment of the present invention provides a hoist wheel shaft, a hoist wheel, and a hoist wheel lubrication device.
  • the hoist wheel shaft is provided with a first oil injection channel extending axially, and the first oil injection channel
  • the oil inlet is opened at the end surface of the hoist wheel shaft;
  • the hoist wheel shaft further includes at least one second oil injection flow channel opened radially, the at least one second oil injection flow channel and the first oil injection channel
  • the flow channels intersect, and the oil outlet of the at least one second oil injection flow channel is opened on the outer circular surface of the hoist wheel shaft.
  • the hoist wheel includes the hoist wheel shaft described above, the bearing seats installed at both ends of the hoist wheel shaft, the fixed wheel sleeved on the hoist wheel shaft and fixed in the circumferential direction, and at least one
  • the number of the second injection runners is the same as the number of the traveling wheels, and the position of the oil outlet of the second injection runner is the same as the number of the second runners. Corresponding to the moving wheel.
  • the lifter wheel lubrication device includes the lifter wheel, an oil injection pump, and an oil suction pump described above, and an oil outlet of the oil injection pump is connected to the elevator wheel through an oil injection pipe, and the oil suction of the oil suction pump The port is connected to the hoist wheel by an oil suction pipe.
  • the lubricating device of the hoist of the hoisting machine through the first oil injection channel, the second radial oil injection channel, and the oil injection pump on the hoisting wheel shaft of the hoisting machine, automatically moves between the traveling wheel and the hoisting wheel shaft. Lubricate without affecting the operation of the hoist wheel.
  • connection should be understood in a broad sense.
  • it can be an electrical connection, or the internal connection of two elements, or a direct connection. It can also be indirectly connected through an intermediate medium.
  • intermediate medium For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.
  • first ⁇ second ⁇ third involved in the embodiment of the present invention merely distinguishes similar objects, and does not represent a specific ordering of the objects. Understandably, “first ⁇ second ⁇ second” “Three” may be interchanged in a particular order or order, if allowed. It should be understood that the objects of the "first ⁇ second ⁇ third" distinction may be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.
  • An embodiment of the present invention provides a hoist wheel shaft.
  • the hoist wheel shaft that is, the hoist wheel shaft 9 is provided with a first oil injection channel 12 extending axially, and the first oil injection channel
  • the oil inlet of 12 is opened at the end surface of the sheave shaft 9;
  • the sheave shaft 9 further includes at least one second oil injection flow passage 121 opened radially, the at least one second oil injection flow passage 121 and the first
  • the oil injection flow path 12 intersects, and an oil outlet of the at least one second oil injection flow path 121 is opened on an outer circular surface of the skywheel shaft 9.
  • the diameter of the second oil injection flow path 121 is set according to the following principle: When the number of the second oil injection flow paths 121 is two or more, the diameter of the second oil injection flow path 121 is set to : When the lubricating oil enters two or more of the second oil injection flow passages 121 from the first oil injection flow passage 12, the flow rates of the two or more second oil injection flow passages 121 are the same.
  • three of the second oil injection flow channels 121 are provided, and the diameters of the three second oil injection flow channels 121 are preset sizes, so that the lubricating oil enters the first oil injection flow channel 12
  • the flow rates of the three second oil injection flow paths 121 are the same.
  • the lubricating oil is a semi-fluid grease.
  • the area relationship of the radial through holes of the three second oil injection flow channels 121 needs to be calculated according to fluid mechanics, and the specific calculation is as follows.
  • the ratio of the length to the diameter of the hole is greater than 4, it is called an elongated hole.
  • the flow formula of the elongated hole is:
  • d the diameter of the slender hole
  • the flow rate of the slender holes is related to the pressure difference ⁇ p and the size of the slender holes.
  • the length is the same, so the flow rate is proportional to the product of the pressure difference ⁇ p and the fourth power d 4 of the hole diameter.
  • FIG. 2 is a schematic diagram of determining a diameter of a second oil injection channel in a hoist wheel shaft according to an embodiment of the present invention.
  • the pressure of the injected lubricant at the open end of the counterbore of the hoist wheel shaft is p
  • three The pressure at the lubricating wheel where lubrication is needed is p 0
  • the diameter of the first radial through hole is d 1
  • the diameter of the second radial through hole is d 2
  • the diameter of the third radial through hole is d 3
  • the pressure loss of lubricant along the radial through hole can be ignored.
  • the pressure difference when the lubricant flows through the first radial through hole is pp 0 , so the flow rate of the first radial through hole can be expressed as:
  • the pressure difference when the lubricant flows through the second radial through hole is p-2p 0 , so the flow rate of the second radial through hole is:
  • the pressure difference when the lubricant flows through the third radial through hole is p-3p 0 , so the flow rate of the third radial through hole is:
  • An embodiment of the present invention also provides a hoist wheel, as shown in FIG. 3, the hoist wheel includes a wheel shaft 9, bearing seats 10 installed at both ends of the wheel shaft 9, and sleeved on the sky A fixed wheel 81 on the wheel shaft 9 and fixed in the circumferential direction and at least one traveling wheel 82 sleeved on the sky wheel shaft 9; the sky wheel shaft 9 is a hoist wheel shaft as described above;
  • the number of the second injection runners 121 is the same as the number of the traveling wheels 82, and the positions of the oil outlets of the second injection runners 121 correspond to the traveling wheels 82, so as to better lubricate the vehicle. ⁇ ⁇ 82 ⁇ ⁇ ⁇ 9 ⁇ Said the tour wheel 82 and the sun wheel shaft 9.
  • a bearing pad 19 is further provided between the traveling wheel 82 and the pulley shaft 9 to reduce friction between the traveling wheel 82 and the pulley shaft 9 and avoid the traveling wheel 82 and the sky. Wear of the axle 9.
  • the lubricating oil of the second oil injection flow passage 121 is mainly used to lubricate the bearing pad 19.
  • each of the bearing blocks 10 is provided with a rolling bearing 20 that cooperates with the wheel shaft 9 and a bearing end cover 7 that protects the rolling bearing 20; at least one of the bearing end covers 7 is provided to communicate with the first
  • the first oil injection hole 16 of an oil injection flow channel 12 is shown in FIG. 6 or FIG. 7.
  • the position of the oil outlet of the first oil injection hole 16 corresponds to the oil inlet of the first oil injection channel 12.
  • One end of the hoist wheel is a fixed wheel 81 and the other end is a movable wheel 82. Therefore, the bearing end cover 7 of the embodiment of the present invention is provided with two types.
  • the first type is the bearing end cover 7 on the right side in FIG. As shown in FIG.
  • the bearing end cover 7 includes a first oil injection hole 16, a second oil injection hole 15, and an oil suction hole 17, that is, the bearing pad 19 and the rolling bearing 20 of the wheel shaft 9 can be lubricated through the bearing end cover 7 at the same time;
  • the second type is the bearing end cap on the left side in FIG. 3.
  • the first oil injection hole 16 is not included, and only the second oil injection hole 15 and the oil suction hole 17 are included, that is, the rolling bearing 20 can only be lubricated.
  • the oil inlet of the first oil injection channel 12 is connected to the first oil injection hole 16 through an oil injection joint pipe 11, and one end of the oil injection joint pipe 11 is fixed to the bearing end cover 7 and one end Extends into the first oil injection flow path 12. In this way, the smooth entry of lubricating oil is ensured, which can be seen very clearly in conjunction with Figures 4 and 5.
  • a sealing slip ring 13 is sleeved at one end of the oil injection joint pipe 11 protruding into the first oil injection flow path 12, and an outer circular surface of the sealing slip ring 13 is in interference. Fitted to the inner wall of the first oil injection flow path 12, the inner wall gap of the seal slip ring 13 is fitted to the outer circular surface of the oil injection joint pipe 11.
  • the sealing slip ring 13 is a high-pressure sealed slip ring that can withstand high pressure.
  • the oil injection joint pipe 11 is fixed on the other end of the bearing end cap 7 with a sealing ring 14, and the sealing ring 14 is used to prevent lubricant leakage.
  • the bearing end cap 7 is further provided with a second oil injection hole 15 for lubricating the rolling bearing 20 and an oil suction hole 17 for recovering waste lubricating oil.
  • the oil outlet corresponds to the rolling body of the rolling bearing 20, and the oil suction of the oil suction hole 17 is located at the rolling body 180 degrees circumferentially away from the oil outlet of the second oil injection hole 15.
  • the oil suction hole 17 is used for recovering used lubricating oil, that is, used lubricating oil used for recycling. If you want to add lubricating oil without stopping, you can refill while lubricating. In this way, a part of the new lubricating oil may be recovered. Avoid situations where the lubricant in the rolling bearing 20 is insufficient or excessive.
  • the oil suction port of the oil suction hole 17 and the oil discharge port of the second oil injection hole 15 are 180 degrees away from each other in the circumferential direction of the end face of the bearing end cover 7 in order to uniformly distribute the lubricant to the entire rolling bearing 20 because the hoist In the operation of the sun gear, there are both forward rotation and reverse rotation.
  • the injected lubricant can be applied to the entire circumference from both clockwise and counterclockwise directions.
  • the number of the traveling wheels 82 is three, so that it can meet the needs of a deep-well multi-rope friction hoist.
  • a seal ring 18 for preventing the loss of lubricating oil is sleeved on the pulley shaft 9 between the traveling wheel 82 and the fixed wheel 81 or between the two traveling wheels 82, and the sealing ring 18 is also provided with a convenient drain.
  • An oil drain nozzle (not shown in the figure) for waste lubricating oil in the seal ring 18 and an oil plug (not shown in the figure) that plugs the oil drain nozzle.
  • the sealing ring 18 is composed of a light-weight rubber strip with a certain rigidity, which is connected end to end. Magnets are fixed at both ends of the rubber strip, and the end-to-end connection is achieved by the attraction of the magnet.
  • the oil drain nozzle passes through the seal ring 18 and communicates with the surface of the pulley shaft 9.
  • the lubricating oil leaking from the gap between the cruise wheel 82 and the pulley shaft 9 will collect on the inner wall of the seal ring 18. When there is a large amount of lubricating oil on the inner wall, it can be recovered through the oil drain nozzle.
  • An embodiment of the present invention also provides a lubricating device for a hoist wheel, as shown in FIG. 8, and referring to FIGS. 6 and 7.
  • the lubricating device for a hoist wheel includes a hoist wheel, an oil injection pump 1 and an oil suction pump 2; Said sky wheel is the above-mentioned hoist sky wheel;
  • the oil injection pump 1 is used for regularly and quantitatively injecting lubricating oil into the sky wheel;
  • the oil suction pump 2 is configured to recover waste lubricating oil in the sky wheel
  • An oil outlet of the oil injection pump 1 is connected to the hoist wheel through an oil injection pipe 3, and an oil inlet of the oil suction pump 2 is connected to the hoist wheel through an oil suction pipe.
  • an implementation manner is that the hoist wheel is provided with a second oil injection hole for lubricating the rolling bearing 20, and an oil outlet of the oil injection pump 1 is connected to the first oil injection pipe 3 through an oil injection pipe 3.
  • Two oil injection holes; another implementation is that the hoist wheel is provided with a first oil injection hole that communicates with the first oil injection channel 12, a second oil injection hole that lubricates the rolling bearing 20, and the oil injection pump 1 The oil outlet is connected to the first oil injection hole and the second oil injection hole through an oil injection pipe 3.
  • the oil injection pipe 3 is connected to the first oil injection hole 16 through an oil injection joint pipe 11, and the oil injection joint pipe 11 is provided with an internal thread, and the connection with the oil injection pipe 3 is realized through the screw.
  • the oil injection pump 1 is further provided with a bubble generation device, which is used to add an inert gas to the lubricating oil to improve the lubrication effect.
  • the bubble generation device can add an inert gas to the lubricating oil to form an oil-gas mixture with a specific oil-gas ratio, and the oil-gas mixture can effectively reduce the temperature rise of the friction pair. Since the structural principle of the bubble generation device and the proportion of the oil-gas mixture are relatively mature, the detailed description is omitted.
  • the oil injection pump 1 is also provided with a monitoring device 4 for monitoring the oil injection condition, and the monitoring device 4 is installed on the oil injection pipe 3 to monitor the flow rate of the oil injection pipe 3 and feed back the flow condition to the wire 5
  • the oil injection pump 1 and the oil injection pump 1 adjust the oil output amount accordingly.
  • the oiling pump 1 is also provided with a distributor for separating three oiling pipes 3 for oiling respectively.
  • the oil suction pump 2 is connected to the oil suction hole 17 of the hoist wheel by an oil suction pipe and a grease collector 6.
  • the principle of oil absorption is to generate a negative pressure through the oil suction pump 2, and the excess oil enters the under the effect of the negative pressure.
  • the embodiment of the present invention automatically lubricates between the traveling wheel and the shaft of the hoisting wheel of the hoist through the first axial oil injection channel, the second radial filling channel and the oil injection pump on the hoist wheel axis, without affecting the hoist. Skywheel operation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Details Of Gearings (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

一种提升机天轮轴，开设有轴向延伸的第一注油流道（12），第一注油流道（12）的进油口开设于提升机天轮轴（9）的端面；提升机天轮轴（9）还包括径向开设的至少一个第二注油流道（121），至少一个第二注油流道（121）与第一注油流道（12）相交，至少一个第二注油流道（121）的出油口开设于提升机天轮轴（9）的外圆面。还涉及一种提升机天轮及其润滑装置。

Description

一种提升机天轮轴、提升机天轮及其润滑装置
相关申请的交叉引用
本申请基于申请号为201810530368.7、申请日为2018年5月29日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本发明涉及矿井提升***，具体涉及一种提升机天轮轴、提升机天轮及其润滑装置。
背景技术
提升机天轮是矿井立井井架最上方调节钢丝绳运动方向的定滑轮，作用是撑起连接提升机卷筒和提升容器的钢丝绳，并引导钢丝绳转向。其中，使用比较广泛的是游动天轮，能很好的适应有多条钢丝绳的提升***。由于矿井地区空气质量差，游动轮与提升机天轮轴之间的润滑油条件差，由此导致提升机天轮轴、游动轮或提升机天轮轴和游动轮之间的轴瓦更容易磨损，使用寿命短。为了提高使用寿命，业内也使用多种方式改善润滑，但效果均不理想或润滑过程会影响提升机天轮的运行。
发明内容
有鉴于此，本发明实施例期望提供一种提升机天轮轴、提升机天轮及其润滑装置，能自动对游动轮与提升机天轮轴之间进行润滑，且不影响提升机天轮的运行。
为达到上述目的，本发明的技术方案是这样实现的：
本发明实施例提供了一种提升机天轮轴，所述提升机天轮轴开设有轴向延伸的第一注油流道，所述第一注油流道的进油口开设于所述提升机天轮轴的端面；所述提升机天轮轴还包括径向开设的至少一个第二注油流道，所述至少一个第二注油流道与所述第一注油流道相交，所述至少一个第二注油流道的出油口开设于所述提升机天轮轴的外圆面。
上述方案中，所述至少一个第二注油流道的数量为两个以上时，两个以上的所述第二注油流道的直径的尺寸设置为：使得润滑油从所述第一注油流道进入两个以上的所述第二注油流道时，两个以上的所述第二注油流道的流量相同。
本发明实施例还提供了一种提升机天轮，包括上面所述的任意一种提升机天轮轴、安装在所述提升机天轮轴两端的轴承座、套设在所述提升机天轮轴上且圆周向固定的固定轮和至少一个套设在所述提升机天轮轴上的游动轮；所述第二注油流道的数量与所述游动轮的数量相同，所述第二注油流道的出油口位置与所述游动轮对应。
上述方案中，所述轴承座设有与所述提升机天轮轴配合的滚动轴承和防护所述滚动轴承的轴承端盖；至少一个所述轴承端盖设有连通所述第一注油流道的第一注油孔，所述第一注油孔的位置与所述第一注油流道的进油口对应。
上述方案中，所述第一注油流道的进油口通过注油接头管与所述第一注油孔连接，所述注油接头管一端固定于所述轴承端盖，一端伸入所述第一注油流道。
上述方案中，所述注油接头管伸入所述第一注油流道的一端套设有密封滑环，所述密封滑环的外圆面过盈配合于所述第一注油流道的内壁，所述密封滑环的内壁间隙配合于所述注油接头管的外圆面。
上述方案中，所述轴承端盖还设有润滑所述滚动轴承的第二注油孔和 回收废润滑油的吸油孔，所述第二注油孔的出油口对应所述滚动轴承的滚动体处，所述吸油孔的吸油口位于与所述第二注油孔的出油口圆周向相距180度的所述滚动体处。
上述方案中，所述游动轮与固定轮之间或两个所述游动轮之间的提升机天轮轴上套设有阻止润滑油流失的密封圈，且所述密封圈还设有便于排出密封圈内废润滑油的排油嘴和塞住所述排油嘴的油塞。
本发明实施例还提供了一种提升机天轮润滑装置，包括上面所述的任意一种提升机天轮、注油泵和吸油泵；
所述注油泵，用于定时定量的给所述提升机天轮注入润滑油；
所述吸油泵，用于回收所述提升机天轮中的废润滑油；
所述注油泵的出油口通过注油管连接到所述提升机天轮，所述吸油泵的吸油口通过吸油管连接到所述提升机天轮。
上述方案中，所述注油泵还设有气泡生成装置，所述气泡生成装置用于给润滑油加入惰性气体。
本发明实施例提供的一种提升机天轮轴、提升机天轮及提升机天轮润滑装置，所述提升机天轮轴开设有轴向延伸的第一注油流道，所述第一注油流道的进油口开设于所述提升机天轮轴的端面；所述提升机天轮轴还包括径向开设的至少一个第二注油流道，所述至少一个第二注油流道与所述第一注油流道相交，所述至少一个第二注油流道的出油口开设于所述提升机天轮轴的外圆面；可见，本发明实施例通过提升机天轮轴上轴向的第一注油流道、径向的第二注油流道和注油泵自动对游动轮与提升机天轮轴之间进行润滑，且不影响提升机天轮的运行。
本发明实施例的其他有益效果将在具体实施方式中结合具体技术方案进一步说明。
附图说明
图1为本发明一实施例提升机天轮轴的示意图；
图2为本发明一实施例提升机天轮轴中第二注油流道直径确定的示意图；
图3为本发明一实施例提升机天轮的示意图；
图4为本发明一实施例提升机天轮中注油接头管在轴承端盖中的装配示意图；
图5为本发明一实施例提升机天轮中注油接头管的示意图；
图6为本发明一实施例提升机天轮中游动轮端轴承端盖的示意图；
图7为本发明一实施例提升机天轮中固定轮端轴承端盖的示意图；
图8为本发明一实施例提升机天轮润滑装置的整体示意图。
具体实施方式
本发明实施例提供了一种提升机天轮轴、提升机天轮及提升机天轮润滑装置，所述提升机天轮轴开设有轴向延伸的第一注油流道，所述第一注油流道的进油口开设于所述提升机天轮轴的端面；所述提升机天轮轴还包括径向开设的至少一个第二注油流道，所述至少一个第二注油流道与所述第一注油流道相交，所述至少一个第二注油流道的出油口开设于所述提升机天轮轴的外圆面。
所述提升机天轮，包括上面所述的提升机天轮轴、安装在所述提升机天轮轴两端的轴承座、套设在所述提升机天轮轴上且圆周向固定的固定轮和至少一个套设在所述提升机天轮轴上的游动轮；所述第二注油流道的数量与所述游动轮的数量相同，所述第二注油流道的出油口位置与所述游动轮对应。
所述提升机天轮润滑装置包括上面所述的提升机天轮、注油泵和吸油泵，所述注油泵的出油口通过注油管连接到所述提升机天轮，所述吸油泵 的吸油口通过吸油管连接到所述提升机天轮。
本发明实施例的提升机天轮润滑装置，通过提升机天轮轴上轴向的第一注油流道、径向的第二注油流道和注油泵自动对游动轮与提升机天轮轴之间进行润滑，且不影响提升机天轮的运行。
以下结合具体实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
需要说明的是，在本发明实施例记载中，除非另有说明和限定，术语“连接”应做广义理解，例如，可以是电连接，也可以是两个元件内部的连通，可以是直接相连，也可以通过中间媒介间接相连，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。
需要说明的是，本发明实施例所涉及的术语“第一\第二\第三”仅仅是区别类似的对象，不代表针对对象的特定排序，可以理解地，“第一\第二\第三”在允许的情况下可以互换特定的顺序或先后次序。应该理解“第一\第二\第三”区分的对象在适当情况下可以互换，以使这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。
本发明实施例提供了一种提升机天轮轴，如图1所示，所述提升机天轮轴、即天轮轴9开设有轴向延伸的第一注油流道12，所述第一注油流道12的进油口开设于所述天轮轴9的端面；所述天轮轴9还包括径向开设的至少一个第二注油流道121，所述至少一个第二注油流道121与所述第一注油流道12相交，所述至少一个第二注油流道121的出油口开设于所述天轮轴9的外圆面。
为保证润滑均匀，所述第二注油流道121的直径的尺寸设置按如下原则：所述第二注油流道121的数量为两个以上时，所述第二注油流道121的直径设置为：使得润滑油从所述第一注油流道12进入两个以上的所述第二注油流道121时，两个以上的所述第二注油流道121的流量相同。
本发明实施例中，所述第二注油流道121设有三个，三个所述第二注油流道121的直径为预设尺寸，使得润滑油从所述第一注油流道12进入所述第二注油流道121时，三个所述第二注油流道121的流量相同。
本发明实施例中，所述润滑油为半流体润滑脂。
为了使提升机天轮轴中的三个径向的第二注油流道121的流量相等，需要根据流体力学计算三个第二注油流道121的径向通孔的面积关系，具体计算如下。
当孔的长度和直径之比大于4时，称为细长孔。提升机天轮轴中的三个径向通孔满足这一条件，因此将其看作是细长孔，根据流体力学可知细长孔的流量公式为：
Figure PCTCN2018092116-appb-000001
式中：d——细长孔的直径；
l——细长孔的长度；
μ——液体的黏度；
Δp——细长孔两端的压差。
由公式(1)可知，对于同一种液体，细长孔的流量与压差Δp和细长孔的尺寸有关。对于提升机天轮轴中的三个径向通孔，其长度是一样的，因此其流量与压差Δp和孔直径的四次方d 4的乘积成正比。
图2为本发明一实施例提升机天轮轴中第二注油流道直径确定的示意图，如图2所示，假设注入的润滑油在提升机天轮轴的沉孔开口端的压强为p，三个游动轮需要润滑处的压强为p 0，第一个径向通孔的直径是d 1，第二个径向通孔的直径是d 2，第三个径向通孔的直径是d 3，润滑油在径向通孔内的沿程压力损失可以忽略不计。润滑油流经第一个径向通孔时产生的压差为p-p 0，因此第一个径向通孔的流量可表示为：
Figure PCTCN2018092116-appb-000002
润滑油流经第二个径向通孔时产生的压差为p-2p 0，因此第二个径向通孔的流量为：
Figure PCTCN2018092116-appb-000003
当q 1＝q 2时可得：
Figure PCTCN2018092116-appb-000004
因此第二个径向通孔的直径和第一个径向通孔的直径关系为：
Figure PCTCN2018092116-appb-000005
润滑油流经第三个径向通孔时产生的压差为p-3p 0，因此第三个径向通孔的流量为：
Figure PCTCN2018092116-appb-000006
当q 1＝q 3时可得：
Figure PCTCN2018092116-appb-000007
因此第三个径向通孔的直径和第一个径向通孔的直径的关系为：
Figure PCTCN2018092116-appb-000008
由公式(2)、(3)可知，当径向通孔的长度相等时，第二、三个径向通孔的直径与第一个径向通孔的直径比例与初始压强p和外界环境压强p 0有关，它们满足d 3>d 2>d 1的关系，具体的值需要已知初始压强P、外界环境压强p 0和流量q后进行计算，在此不再详述。
本发明实施例还提供了一种提升机天轮，如图3所示，所述提升机天轮包括天轮轴9、安装在所述天轮轴9两端的轴承座10、套设在所述天轮轴9上且圆周向固定的固定轮81和至少一个套设在所述天轮轴9上的游动轮82；所述天轮轴9为前面所述的提升机天轮轴；
所述第二注油流道121的数量与所述游动轮82的数量相同，所述第二注油流道121的出油口位置与所述游动轮82对应，这样能更好的润滑所述游动轮82和天轮轴9。
作为一种实现方式，所述游动轮82和天轮轴9之间还设有轴瓦19，用于减少所述游动轮82和天轮轴9的摩擦力，避免所述游动轮82和天轮轴9的磨损。本发明实施例中，第二注油流道121的润滑油主要用于润滑所述轴瓦19。
作为一种实现方式，所述轴承座10均设有与所述天轮轴9配合的滚动轴承20和防护所述滚动轴承20的轴承端盖7；至少一个所述轴承端盖7设有连通所述第一注油流道12的第一注油孔16，参见图6或图7，所述第一注油孔16的出油口位置与所述第一注油流道12的进油口对应；本发明实施例提升机天轮的一端为固定轮81，另一端为游动轮82，因此本发明实施例的轴承端盖7设有两种，第一种为图3中右侧的轴承端盖7，如图6所示，所述轴承端盖7包括第一注油孔16、第二注油孔15和吸油孔17，即可以通过轴承端盖7同时给所述天轮轴9的轴瓦19和滚动轴承20润滑；第二种为图3中左侧的轴承端盖，如图7所示，不包括第一注油孔16，仅包括第二注油孔15和吸油孔17，即只能给所述滚动轴承20润滑。
作为一种实现方式，所述第一注油流道12的进油口通过注油接头管11与所述第一注油孔16连接，所述注油接头管11一端固定于所述轴承端盖7，一端伸入所述第一注油流道12。这样，保证润滑油顺畅进入，结合图4、5所示，可以非常清楚地看到。
作为一种实现方式，结合图4所示，所述注油接头管11伸入所述第一注油流道12的一端套设有密封滑环13，所述密封滑环13的外圆面过盈配合于所述第一注油流道12的内壁，所述密封滑环13的内壁间隙配合于所述注油接头管11的外圆面。这样，在实现天轮轴9与注油接头管11的相 对转动，即实现不停机注油润滑的功能后，防止润滑油泄漏，也可隔绝外界的空气进入第一注油流道12，所述密封滑环13为能承受高压的高压密封滑环。
作为一种实现方式，结合图4所示，所述注油接头管11固定在所述轴承端盖7的另一端套设有密封环14，所述密封环14用于防止润滑油泄漏。
作为一种实现方式，结合图5所示，所述轴承端盖7还设有润滑所述滚动轴承20的第二注油孔15和回收废润滑油的吸油孔17，所述第二注油孔15的出油口对应所述滚动轴承20的滚动体处，所述吸油孔17的吸油口位于与所述第二注油孔15的出油口圆周向相距180度的所述滚动体处。这样，除了通过第一注油孔16润滑所述天轮轴9、游动轮82或天轮轴9和游动轮82之间的轴瓦19，还可以通过第二注油孔15润滑天轮轴9两端的滚动轴承20。
所述吸油孔17用于回收废润滑油，即回收使用过的废润滑油，如果为了实现不停机地加润滑油，可以一边注油，一边回收，这样，可能会回收一部分新润滑油，但能避免滚动轴承20内润滑油不足或润滑油过多的情况。
所述吸油孔17的吸油口与所述第二注油孔15的出油口在所述轴承端盖7端面的周向相距180度的目的在于使润滑油均匀分布到整个滚动轴承20，因为提升机天轮在运行中，既有正转，也有反转，可以从顺时针和逆时针两个方向将注入的润滑油涂抹到整个圆周。
作为一种实现方式，所述游动轮82的数量为三个，这样能适应深井多绳摩擦提升机的需要。
为了避免润滑油从游动轮82与天轮轴9的间隙中漏出，并在离心力的作用下从天轮轴9径向甩出。所述游动轮82与固定轮81之间或两个所述游动轮82之间的天轮轴9上套设有阻止润滑油流失的密封圈18，且所述密封圈18还设有便于排出密封圈18内废润滑油的排油嘴(未在图中示出) 和塞住所述排油嘴的油塞(未在图中示出)。
作为一种实现方式，所述密封圈18由一种质量较轻并具有一定刚度的橡胶条首尾相接围成，所述橡胶条两端分别固定有磁铁，依靠磁铁的吸力实现首尾相接。
所述排油嘴穿过所述密封圈18，连通所述天轮轴9表面，从游动轮82与天轮轴9的间隙中漏出的润滑油会集聚在所述密封圈18的内壁，当密封圈内壁的润滑油较多时，可以通过排油嘴进行回收。
本发明实施例还提供了一种提升机天轮润滑装置，如图8所示，并参见图6、7，所述提升机天轮润滑装置包括天轮、注油泵1和吸油泵2；所述天轮为前面所述的提升机天轮；
所述注油泵1，用于定时定量的给所述天轮注入润滑油；
所述吸油泵2，用于回收所述天轮中的废润滑油；
所述注油泵1的出油口通过注油管3连接到所述提升机天轮，所述吸油泵2的吸油口通过吸油管连接到所述提升机天轮。
具体地，参见图3，一种实现方式是，所述提升机天轮设置有润滑所述滚动轴承20的第二注油孔，所述注油泵1的出油口通过注油管3连接到所述第二注油孔；另一种实现方式是，所述提升机天轮设置有连通所述第一注油流道12的第一注油孔、润滑所述滚动轴承20的第二注油孔，所述注油泵1的出油口通过注油管3连接到所述第一注油孔和所述第二注油孔。
作为一种实现方式，所述注油管3通过注油接头管11连接到所述第一注油孔16，所述注油接头管11设有内螺纹，通过螺纹实现与注油管3的连接。
作为一种实现方式，所述注油泵1还设有气泡生成装置，所述气泡生成装置用于给润滑油加入惰性气体，提高润滑效果。所述气泡生成装置能够给润滑油中加入惰性气体，形成特定油气比例的油气混合物，该油气混 合物可有效降低摩擦副的温升。由于所述气泡生成装置的结构原理及油气混合物的比例比较成熟，不再详述。
另外，所述注油泵1还设有监测注油情况的监测装置4，所述监测装置4安装在所述注油管3上，监测所述注油管3的流量，并将流量情况通过导线5反馈给所述注油泵1，注油泵1据此调整出油量。
由于提升机天轮轴以及两端的滚动轴承均需定期加油润滑，所述注油泵1还设有分配器，用于分出三个注油管3，分别注油。
所述吸油泵2通过吸油管和油脂收集器6连接到所述提升机天轮的吸油孔17，吸油的原理为通过吸油泵2产生负压，多余的油脂在负压的作用下进入所述油脂收集器6。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。
工业实用性
本发明实施例通过提升机天轮轴上轴向的第一注油流道、径向的第二注油流道和注油泵自动对游动轮与提升机天轮轴之间进行润滑，且不影响提升机天轮的运行。

Claims (10)

  1. 一种提升机天轮轴，所述提升机天轮轴开设有轴向延伸的第一注油流道，所述第一注油流道的进油口开设于所述提升机天轮轴的端面；所述提升机天轮轴还包括径向开设的至少一个第二注油流道，所述至少一个第二注油流道与所述第一注油流道相交，所述至少一个第二注油流道的出油口开设于所述提升机天轮轴的外圆面。
  2. 根据权利要求1所述的提升机天轮轴，其中，所述第二注油流道的数量为两个以上时，两个以上的所述第二注油流道的直径的尺寸设置为：使得润滑油从所述第一注油流道进入两个以上的所述第二注油流道时，两个以上的所述第二注油流道的流量相同。
  3. 一种提升机天轮，包括权利要求1或2所述的提升机天轮轴、安装在所述提升机天轮轴两端的轴承座、套设在所述提升机天轮轴上且圆周向固定的固定轮和至少一个套设在所述提升机天轮轴上的游动轮；所述第二注油流道的数量与所述游动轮的数量相同，所述第二注油流道的出油口位置与所述游动轮对应。
  4. 根据权利要求3所述的提升机天轮，其中，所述轴承座设有与所述提升机天轮轴配合的滚动轴承和防护所述滚动轴承的轴承端盖；至少一个所述轴承端盖设有连通所述第一注油流道的第一注油孔，所述第一注油孔的位置与所述第一注油流道的进油口对应。
  5. 根据权利要求4所述的提升机天轮，其中，所述第一注油流道的进油口通过注油接头管与所述第一注油孔连接，所述注油接头管一端固定于所述轴承端盖，一端伸入所述第一注油流道。
  6. 根据权利要求5所述的提升机天轮，其中，所述注油接头管伸入所述第一注油流道的一端套设有密封滑环，所述密封滑环的外圆面过盈配合于所述第一注油流道的内壁，所述密封滑环的内壁间隙配合于所述 注油接头管的外圆面。
  7. 根据权利要求4所述的提升机天轮，其中，所述轴承端盖还设有润滑所述滚动轴承的第二注油孔和回收废润滑油的吸油孔，所述第二注油孔的出油口对应所述滚动轴承的滚动体处，所述吸油孔的吸油口位于与所述第二注油孔的出油口圆周向相距180度的所述滚动体处。
  8. 根据权利要求3所述的提升机天轮，其中，所述游动轮与固定轮之间或两个所述游动轮之间的提升机天轮轴上套设有阻止润滑油流失的密封圈，且所述密封圈还设有便于排出密封圈内废润滑油的排油嘴和塞住所述排油嘴的油塞。
  9. 一种提升机天轮润滑装置，包括权利要求3至8任一项所述的提升机天轮、注油泵和吸油泵；
    所述注油泵，用于定时定量的给所述提升机天轮注入润滑油；
    所述吸油泵，用于回收所述提升机天轮中的废润滑油；
    所述注油泵的出油口通过注油管连接到所述提升机天轮，所述吸油泵的吸油口通过吸油管连接到所述提升机天轮。
  10. 根据权利要求9所述的提升机天轮润滑装置，其中，所述注油泵还设有气泡生成装置，所述气泡生成装置用于给润滑油加入惰性气体。
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