CN107131290A - A kind of large-sized mining grinding mill little gear rolling supporting structure - Google Patents
A kind of large-sized mining grinding mill little gear rolling supporting structure Download PDFInfo
- Publication number
- CN107131290A CN107131290A CN201710335277.3A CN201710335277A CN107131290A CN 107131290 A CN107131290 A CN 107131290A CN 201710335277 A CN201710335277 A CN 201710335277A CN 107131290 A CN107131290 A CN 107131290A
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- Prior art keywords
- bearing
- shaft
- gear
- free end
- cover
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with 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
- 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
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
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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
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A kind of large-sized mining grinding mill little gear rolling supporting structure, the integrative-structure formula shaft gear constituted including little gear and axle, the through hole for being easy to discharge stress is machined with the axle center of shaft gear, the two ends of shaft gear are respectively fixing end and free end, and fixing end is by adjusting distance collar so that the track center of surface line of spherical roller thrust bearing and the first self-aligning roller bearing crosses to same point.The present invention is in fixing end using self-aligning roller bearing and the combination support of spherical roller thrust bearing; two bearings center of effort overlaps; effectively improve the axial carrying capacity of axle group; and with bearing capacity height, good anti-vibration; it can compensate due to processing, the concentricity caused is installed; the problem of solving self-aligning roller bearing frequent breakage, reduces the time of shutdown, improves the operating rate in mine.
Description
Technical field
The present invention relates to a kind of mining equiment device, more particularly, to a kind of large-sized mining grinding mill little gear rolling support
Structure.
Background technology
Known, ball mill is the capital equipment of the industry grinding operation such as metallurgy, building materials, chemical industry, and exposed gear edge is passed
Dynamic is the most frequently used kind of drive of mining grinding mill, and grinding machine gear wheel is connected on the outside of cylinder, by motor driving pinion and greatly
Gear engagement drives grinding machine rotation.The pinion shaft of grinding machine is supported on bearing block by two self-aligning roller bearings, in bearing
Design is suitable for the little gear rolling supporting structure that sealing structure of bearing lubrication etc. collectively constitutes grinding machine on seat and gear shaft, is
The critical component of mill driving system operation.At present, domestic specification is compared with rolling bearing in laboratory mill little gear rolling supporting structure
Supported using self-aligning roller bearing, bearing uses grease seal, bearing block, which is used, carries gland, the labyrinth seal structure of transparent cover.
With the increase of mill diameter, the design to small tooth rolling supporting structure it is also proposed new requirement, original bearing type, profit
Sliding form, sealing structure etc. can not all meet the requirement of high-power grinding machine Edge-Transmission of the driving power more than 6500kW.
The type of drive of grinding machine shows diversified trend along with the maximization of grinding machine, exposed gear Edge-Transmission by
Single motor driving develops into Dual-motors Driving, drives grinding machine to rotate by two little gear rolling supporting structures, dual drive system
Net synchronization capability, the load of large-sized grinder ten-million-ton scale, the reasonable design of field basic and the installation of self-aligning roller bearing etc.
Many factors make it that the force status of little gear group is increasingly complex.There is aligning roller axle in original little gear rolling supporting structure
Hold damage frequently, the situation of local oil leak, frequently changes rolling bearing and sealing device not only at rolling supporting structure sealing
The activity ratio of grinding machine is influenceed, and the maintenance cost of great number is brought to user, puzzlement large-sized mining grinding mill at present is had become
Subject matter.Therefore propose a kind of new large-sized mining grinding mill little gear rolling supporting structure to meet high-power mining mill
The demand of machine driving, as the basic demand for those skilled in the art.
The content of the invention
The purpose of the present invention is to cause bearing wear is severe to ask to solve the stress complexity of little gear group in the prior art
Topic is there is provided a kind of large-sized mining grinding mill little gear rolling supporting structure, by using spheric roller bearing and aligning in fixing end
The structure of roller bearing combination, free end uses self-aligning roller bearing, optimizes shaft strength, improves bearing life；Using thin oil
Lubrication reduces the heating of bearing；Improve the circulation that bearing block structure ensures lubricating oil；Using folder cloth lips oil on bearing block
Envelope, O-ring sealing, the oil leak situation of labyrinth seal multi-sealing structure reduction rolling supporting structure；Increase automatic-sealed stuffing
Interface ensures sealed reliability；Increase the service condition of vibration monitoring interface monitor bearing.Realize and effectively extend large-scale mill
Machine pinion shaft rolling bearing service life, support meanss sealed reliable, convenient disassembly reduces grinding machine maintenance downtime, made
With safe and reliable purpose.
The present invention is solves the deficiency of above-mentioned technical problem, and the technical scheme used is：
A kind of large-sized mining grinding mill little gear rolling supporting structure, including the integrative-structure formula shaft gear that little gear and axle are constituted,
It is machined with the through hole for being easy to discharge stress at the axle center of shaft gear, the two ends of shaft gear are respectively fixing end and free end, described
The fixing end of shaft gear be provided with fixed end bearing block and fixed end bearing cover, fixed end bearing cover coordinates fixed end bearing block
The space surrounded is clutch shaft bearing chamber, and clutch shaft bearing intracavitary is provided with the first aligning roller axle for supporting shaft gear fixing end
Hold and be located at side of the clutch shaft bearing chamber away from little gear on shaft gear with spherical roller thrust bearing, spherical roller thrust bearing,
First self-aligning roller bearing is located at the side of clutch shaft bearing chamber little gear on shaft gear, and upper press cover and lower cover are cooperatively formed
For top pressure the first self-aligning roller bearing one end and seal the compression end cap of clutch shaft bearing chamber, clutch shaft bearing chamber is away from compressing end cap
Side inwall on be additionally provided with some along the circumferential direction uniform grooves, groove and be equipped with spring, one end of spring withstands on recessed
Trench bottom, the other end top of spring is located on pressing plate, and pressing plate is sticked on spherical roller thrust bearing in order to spherical roller
Thrust bearing applies pretightning force, and distance collar is provided between the first self-aligning roller bearing and spherical roller thrust bearing, and adjustment is fixed
Away from ring so that the track center of surface line of spherical roller thrust bearing and the first self-aligning roller bearing crosses to same point, lead to simultaneously
The cooperation for crossing spring, upper press cover and lower cover applies pretightning force, the first self-aligning roller bearing and ball to spherical roller thrust bearing
Face roller thrust axle is fixed on clutch shaft bearing intracavitary by coordinating with shaft shoulder positioning；
The free end of described shaft gear is provided with free end shaft bearing and free end end cap, free end shaft bearing and free end end
Second for supporting shaft gear free end is provided with the second bearing chamber that the space that lid is fitted around is formed, second bearing chamber
Self-aligning roller bearing, the second self-aligning roller bearing is coordinated by locking nut and tight locking button is fixed on second bearing intracavitary gear shaft
Free end, be respectively formed gap between the second self-aligning roller bearing and the both sides inwall of second bearing chamber, it is small on the shaft gear
One splaying of gear is M, and the splaying away from little gear on shaft gear is N.
The first described self-aligning roller bearing and the model of the second self-aligning roller bearing are identical.
Fixed between described fixation end bearing block and fixed end bearing cover by bolt, the nuts and washers of mutual cooperation
Together, be fixed together by ear mount of the screw thread on both lateral walls, fixed end bearing block and fixed end bearing cover it
Between also have finger setting.
It is fixed between described free end shaft bearing and free end end cap by bolt, the nuts and washers of mutual cooperation
Together, it is fixed together by ear mount of the screw thread on both lateral walls, between free end shaft bearing and free end end cap also
There is finger setting.
The two ends for the through hole that described clutch shaft bearing chamber wears axle are provided with closure I, and closure I includes cooperating
Top cover labyrinth I and lower sealing cover I, by the round rubber seal of tube between closure I and the side wall of clutch shaft bearing chamber, closure I
Sealed between the axle of shaft gear by O-ring seal, labyrinth seal, the two ends for the through hole that the second bearing chamber wears axle are equal
Closure II is provided with, closure II includes the top cover labyrinth II and lower sealing cover II cooperated, closure II and the second axle
Hold between the side wall of chamber by the round rubber seal of tube, sealed between closure II and the axle of shaft gear by O-ring seal, it is O-shaped
Sealing ring includes being located at the inner side O-ring seal close to gear shaft one end and the outside O-ring seal away from gear shaft one end, interior
It is provided with the inner seal ring coordinated with it, outside O-ring seal that to be provided with the outside coordinated with it close at the O-ring seal of side
By pressing from both sides cloth two-lip seal between the side wall and axle of seal ring, clutch shaft bearing chamber and second bearing chamber, folder cloth two-lip seal includes
Cloth two-lip seal is pressed from both sides positioned at the inner side folder cloth two-lip seal close to gear shaft one end and the outside away from gear shaft one end, folder cloth is double
Lip oil sealing is rotated between pinion shaft using interference fit with gear shaft, and O-ring seal is with pinion shaft with gear shaft
Axle rotates together.
Described fixation end bearing block and free end shaft bearing is fixed on ground by bottom plate.
Lubrication hydraulic fluid port A and lubrication hydraulic fluid port B are machined with described fixation end bearing cover, free end bearing, which is covered, is machined with profit
The bottom of lubricating oil mouthful C, fixed end bearing block and free end shaft bearing is machined with oil-out L and oil-out K, clutch shaft bearing chamber and
The space of second bearing chamber offers through hole and connected respectively with oil-out L and oil-out K, and fixed end bearing block bottom is offered
Drain oil D and drain oil E, free end shaft bearing bottom offers drain oil F, and the application uses thin oil lubricant, with a level pressure
The lubrication hydraulic fluid port and free end bearing that the lubricating oil of power is injected on fixed end bearing cover at A, B by oil pump in hydraulic stations are covered at C
Lubrication hydraulic fluid port, take away the heat that produces when rolling bearing is rotated, it is ensured that it is normal to run.In fixed end bearing block and free end
Oil-out is reserved at bottom L, K of bearing block, to ensure the circulation of bearing both sides lubricating oil, the opened hole on bearing block, connection
Oil-out at two.Drain oil D, E are reserved with fixed end bearing block bottom, drain oil is reserved with free end shaft bearing bottom
F, G, it is ensured that the waste oil and impurity of bearing block bottom can be excluded smoothly.
Air cleaner and platinum resistance thermometer sensor, are mounted on described free end bearing cap and fixed end bearing cover.We
The top vertical position of free end bearing cap and fixed end bearing cover is reserved with vibration detecting sensor connecting hole in case, in freedom
The horizontal level of end bearing block and fixed end bearing block is reserved with vibration detecting sensor connecting hole.
Described large-sized mining grinding mill little gear rolling supporting structure is equipped with disc I on gear shaft, in locking nut
The first line of a couplet is connected to disc II, is all rotated with gear shaft.
Described large-sized mining grinding mill little gear rolling supporting structure is pacified on free end bearing cap and fixed end bearing cover
Equipped with oil baffle.
The beneficial effects of the invention are as follows：Little gear of the present invention uses integrative-structure with axle, simplifies the connection of little gear and axle
Mode is connect, makes its structure and stress more reasonable, elongated hole is beaten at pinion shaft center releases stress in pinion shaft heat treatment process
Put more uniform.
The present invention is supported in fixing end using self-aligning roller bearing and the combination of spherical roller thrust bearing, in two bearings stress
The heart is overlapped, and effectively improves the axial carrying capacity of axle group, and with bearing capacity height, good anti-vibration, can compensate due to adding
The concentricity that work, installation are caused, the problem of solving self-aligning roller bearing frequent breakage reduces the time of shutdown, carried
The high operating rate in mine.
Fixing end of the present invention is positioned using distance collar and gland to fixing end self-aligning roller bearing, it is ensured that what is be entirely driven is flat
Stability, free end reserves safe expansion amount using tight locking button and locking nut with bearing block, is prevented effectively from due to gear shaft
Expand with heat and contract with cold the damage to self-aligning roller bearing.
The rolling bearing of the present invention uses thin oil lubricant, realizes to self-aligning roller bearing and spherical roller thrust bearing
Lubrication, effectively taken away rolling bearing rotate produce heat, prevent rolling bearing because temperature is too high and caused by damage.
The through hole of bearing block bottom of the present invention, the oil pocket of connection rolling bearing both sides, is all connected to oil return pipe in both sides, makes axle
During acknowledgement of consignment row, lubrication oil circulation is more unobstructed, effectively reduces the leakage of large-sized mining grinding mill little gear rolling supporting structure
Oily situation.
The folder cloth two-lip seal that the present invention is used, main lip prevents the leakage of lubricating oil, and secondary lip prevents dust from entering, on oil sealing
With back-moving spring, radial load of the sealing lip to gear shaft is added, it is ensured that the sealed reliability.
The outside of textile rubber oil seals of the present invention uses labyrinth seal and the sealing of O-ring seal combination form, close by injecting
Lubricating grease in seal ring, effectively prevent bearing block internal lubrication oil leak and external dust entrance, it is ensured that lubricating oil
Degree of purity.
Air cleaner on bearing cap of the present invention ensures the consistent of bearing block inner and outer air pressure so that lubricating oil can be unimpeded
Into.Platinum resistance thermometer sensor, is contacted with self aligning roller bearing outer ring, and the temperature of bearing can be measured in real time, report is provided for the damage of bearing
Alert signal.
The present invention uses multiple disc structure, and lubricating oil can be made away from shaft gear hole axle seal, effectively prevented
Leakage of the lubricating oil at sealing.
Brief description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is Fig. 1 P direction views.
Fig. 3 is close-up schematic view at the II of Fig. 1.
Fig. 4 is close-up schematic view at the I of Fig. 1.
Fig. 5 is close-up schematic view at the III of Fig. 2.
Fig. 6 is close-up schematic view at the IV of Fig. 1.
Close-up schematic view at the V of Fig. 7.
Fig. 8 is Fig. 2 sectional view.
Diagram mark：1st, shaft gear；2nd, the first self-aligning roller bearing；3rd, spherical roller thrust bearing；4th, fixed end bearing
Lid；5th, upper press cover；6th, fixed end bearing block；7th, distance collar；8th, lower cover；9th, free end bearing cap；10th, free end shaft bearing；
11st, locking nut；12nd, tight locking button；13rd, top cover labyrinth I；14th, lower sealing cover I；15th, top cover labyrinth II；16th, lower sealing cover II；
17th, bottom plate；18th, outer side seal ring；19th, outside O-ring seal；20th, outside folder cloth two-lip seal；21st, spring；22nd, pressing plate；
23rd, round rubber pipe；24th, plug screw；25th, bolt；26th, nut；27th, packing ring；28th, finger setting；29th, air cleaner；30th, platinum thermoelectricity
Resistance；31st, disc I；32nd, oil baffle；33rd, inner side folder cloth two-lip seal, 34 inner seal rings, 35 inner side O-ring seals, 36 are got rid of
Oil ring II, 37 studs, 38 nut I.
Embodiment
Shown in figure, embodiment is as follows：
A kind of large-sized mining grinding mill little gear rolling supporting structure, including the integrative-structure formula shaft gear 1 that little gear and axle are constituted,
The through hole for being easy to discharge stress is machined with the axle center of shaft gear 1, the two ends of shaft gear 1 are respectively fixing end and free end, institute
The fixing end for the shaft gear 1 stated is provided with fixed end bearing block 6 and fixed end bearing cover 4, and fixed end bearing cover 4 coordinates fixing end
The space that bearing block 6 is surrounded is clutch shaft bearing chamber, and clutch shaft bearing intracavitary is provided with for supporting the first of the fixing end of shaft gear 1 to adjust
Heart roller bearing 2 and spherical roller thrust bearing 3, spherical roller thrust bearing 3 are located at clutch shaft bearing chamber away from small on shaft gear 1
The side of gear, the first self-aligning roller bearing 2 is located at the side of clutch shaft bearing chamber little gear on shaft gear 1, the He of upper press cover 5
Lower cover 8 cooperatively forms for the one end of the first self-aligning roller bearing of top pressure 2 and seals the compression end cap of clutch shaft bearing chamber, first axle
Hold to be additionally provided with some along the circumferential direction uniform grooves, groove on side inwall of the chamber away from compression end cap and be equipped with spring
21, one end of spring 21 withstands on bottom portion of groove, and the other end top of spring 21 is located on pressing plate 22, and pressing plate 22 is sticked in spherical roller
In order to apply pretightning force to spherical roller thrust bearing 3 on thrust bearing 3, the first self-aligning roller bearing 2 and spherical roller are pushed away
Distance collar 7 is provided between power bearing 3, adjustment distance collar 7 causes the self-aligning roller bearing 2 of spherical roller thrust bearing 3 and first
Track center of surface line cross to same point, while by the cooperation of spring 21, upper press cover 5 and lower cover 8 by the first aligning
Roller bearing 2 and spherical roller thrust bearing 3 are fixed on clutch shaft bearing intracavitary；
The free end of described shaft gear is provided with free end shaft bearing 10 and free end end cap 9, free end shaft bearing 10 and from
It is provided with the second bearing chamber that the space fitted around by end end cap 9 is formed, second bearing chamber for supporting shaft gear 1 freely
Second self-aligning roller bearing at end, the second self-aligning roller bearing is coordinated by locking nut 11 and tight locking button 12 is fixed on the second axle
Intracavitary is held, gap is respectively formed between the second self-aligning roller bearing and the both sides inwall of second bearing chamber, close to small tooth on shaft gear 1
One splaying of wheel is M, and the splaying away from little gear on shaft gear 1 is N.
Pass through the bolt 25 of mutual cooperation, nut 26 and pad between described fixation end bearing block 6 and fixed end bearing cover 4
Circle 27 is fixed together, and is positioned between fixed end bearing block 6 and fixed end bearing cover 4 using pin 28.
Pass through the bolt 25 of mutual cooperation, nut 26 and pad between described free end shaft bearing 10 and free end end cap 9
Circle 27 is fixed together, and is positioned between free end shaft bearing 10 and free end end cap 9 using pin 28.
The two ends for the through hole that described clutch shaft bearing chamber wears axle are provided with closure I, and closure I includes cooperating
Top cover labyrinth I13 and lower sealing cover I14, sealed between closure I and the side wall of clutch shaft bearing chamber by round rubber pipe 23, it is close
Sealed between capping I and the axle of shaft gear by outside O-ring seal 19, outer side seal ring 18, the second bearing chamber is worn
The two ends of the through hole of axle are provided with closure II, and closure II includes top cover labyrinth II15 and the lower sealing cover cooperated
Sealed between II16, closure II and the side wall of second bearing chamber by round rubber pipe 23, between closure I and the axle of shaft gear
Sealed by O-ring seal, O-ring seal includes being located at close to the inner side O-ring seal 35 of gear shaft one end and away from gear
The inner seal ring 34 coordinated with it is provided with the outside O-ring seal 19 of axle one end, inner side O-ring seal 35, outside is O-shaped
The outer side seal ring 18 coordinated with it is provided with sealing ring 19, between clutch shaft bearing chamber and the side wall and axle of second bearing chamber
By pressing from both sides cloth two-lip seal, folder cloth two-lip seal includes being located at presss from both sides cloth two-lip seal 33 and remote close to the inner side of gear shaft one end
The outside folder cloth two-lip seal 20 of gear shaft one end.
Described fixation end bearing block 6 and free end shaft bearing 10 are fixed on ground by bottom plate 17.
It is machined with lubrication hydraulic fluid port A and lubrication hydraulic fluid port B, free end bearing cap 9 and is machined with described fixation end bearing cover 4
Hydraulic fluid port C is lubricated, the bottom for fixing end bearing block 6 and free end shaft bearing 9 is machined with oil-out L and oil-out K, clutch shaft bearing
The space of chamber and second bearing chamber offers through hole and connected respectively with oil-out L and oil-out K, the fixed bottom of end bearing block 6
Drain oil D and drain oil E are offered, the bottom of free end shaft bearing 9 offers drain oil F.
Air cleaner 29 and platinum resistance thermometer sensor, are mounted on described free end bearing cap 9 and fixed end bearing cover 4
30。
Little gear rolling supporting structure with reference to described in accompanying drawing when installing first will integrally-built 32 oil baffle, on the inside of 34
Folder cloth two-lip seal, 35 inner seal rings are installed to the inner side of gear shaft 1 on the axle of little gear.Secondly, aligning roller
The hot charging of bearing 2 on gear shaft 1, between self-aligning roller bearing 2 and gear shaft 1 with being combined into r6, with fixed end bearing cover 4, solid
Fixed end bearing block 6, free end bearing cap 9, matching somebody with somebody for free end shaft bearing 10 are combined into F7.Then in described little gear rolling support
The fixing end of structure installs distance collar 7, spherical roller thrust bearing 3, free end installation locking nut 11, tight locking button 12.
The interior placement spring 21 of preformed hole of fixed end bearing cover 4, fixed end bearing block 6 is shown in, spring 21 passes through
Pressing plate 22 compresses spherical roller thrust bearing 3, after outside folder cloth two-lip seal 20 is installed in place, as shown in Fig. 2 fixing end
Bearing cap 4, fixed end bearing block 6, put together on together by 37 studs, 38 nuts.
As shown in Figure 3 the oil baffle of sequence number 32 is installed in upper press cover 5, by spiral shell after inner side textile rubber oil seals 33 are installed in place
Bolt is by upper press cover 5, lower cover 8 conjunction；Then it is that spring 21 applies pretightning force, it is ensured that ball by bolt presses on bearing block
The normal work of face roller thrust block 3.
The oil baffle of sequence number 32 is installed in free bearing cap 9 as shown in FIG., outside, which is pressed from both sides cloth two-lip seal 20, inner side, to press from both sides
After cloth oil sealing 33 is installed in place, as shown in Fig. 2 free bearing cap 9, free end shaft bearing 10 are passed through 37 studs, 38 spiral shells
Mother puts together on together.
As shown in FIG., outer side seal ring 18 is installed on axle；After outside O-ring seal 19,
Sealing is installed in the outside of fixed end bearing cover 4, fixed end bearing block 6, free bearing cap 9, free end shaft bearing 10
Lid I 13, lower sealing cover I 14；Upper press cover 5, lower cover 8, free bearing cap 9, free end shaft bearing 10 outside, install close
Cover II 15, lower sealing cover II 16.Sealing stuffing mouthful is provided with the top of top cover labyrinth I 13, top cover labyrinth II 15, passes through sealing
Stuffing system is automatically injected lubricating grease between closure and sealing ring.
As illustrated, installing for convenience, top cover labyrinth I 13 and lower sealing cover I, top cover labyrinth II 15 and lower sealing cover II
16 are positioned by pin 28, the nut 26 of bolt 25, packing ring 27 be fixed on after closing fixed end bearing cover 4, fixed end bearing block 6, from
In bearing cap 9, free end shaft bearing 10.
As illustrated, at position and B at the top A of fixed end bearing cover 4 just to the center of spherical roller thrust bearing 3
Screwed hole just is had to the position of self-aligning roller bearing oil filler point, screw thread is provided with the C on the top of free end bearing cap 9
Hole, for installing low pressure lubricating oil pipe, low pressure lubricating oil pressure is 0.63MPa, and flow is the l/min of each bearing about 6, specifically
Adjusted according to bearing size and crushing.
As illustrated, on the top of canned paragraph bearing cap 4 and free end bearing cap 9, the both sides of self-aligning roller bearing 2 are divided
Screwed hole is not left, for installing air cleaner 29, it is ensured that by the both sides oil pocket of the isolation of self-aligning roller bearing 2 can with it is outer
Portion's air pressure is consistent.
Described rolling supporting structure fixes end bearing cover 4 and fixed end bearing block 6, free bearing cap 9 and free end shaft
Bearing 10, top cover labyrinth I 13 and lower sealing cover I, top cover labyrinth II 15 and lower sealing cover II 16, upper press cover 5 and lower cover 8 are
Conjunction is processed two-by-two, and prints pairing mark, is easily installed.
Described rolling supporting structure free end self-aligning roller bearing 2 and free bearing cap 9 and free end shaft bearing 10
Gap M and N are 5mm.
As illustrated, described rolling supporting structure is on the top and both sides of fixed end bearing cover 4, free end bearing cap 9
Face is provided with vibrating sensor interface M6X1；Vibration is installed in the two sides of fixed end bearing block 6, free end shaft bearing 10 to pass
Sensor interface M6X1, for installing vibrating sensor, monitors the vertically and horizontally vibration values of rolling bearing, wherein level two on-line
The vibrating sensor of side can select to be easy to the side of operation to install according to in-site installation situation.
As illustrated, both sides of the described rolling supporting structure on fixed end bearing cover 4, the top of free end bearing cap 9
Lifting eye is cast with, is easy to the installation and adjustment of bearing cap；Top is provided with two screwed holes with 15 degree of oil filler point both sides interval, uses
In installing platinum resistance thermometer sensor, the temperature of bearing operation is monitored.
Technical scheme and embodiment cited by the present invention and non-limiting, with the technical scheme cited by the present invention and
Embodiment is equivalent or effect same approach is all in the range of the present invention is protected.
Claims (7)
1. a kind of large-sized mining grinding mill little gear rolling supporting structure, including the integrative-structure formula shaft gear that little gear and axle are constituted
（1）, shaft gear（1）Axle center at be machined be easy to discharge stress through hole, shaft gear（1）Two ends be respectively fixing end and from
By holding, it is characterised in that：Described shaft gear（1）Fixing end be provided with fixed end bearing block（6）With fixed end bearing cover
（4）, fixed end bearing cover（4）Coordinate fixed end bearing block（6）The space surrounded is clutch shaft bearing chamber, and clutch shaft bearing intracavitary is set
Have for support shaft gear（1）First self-aligning roller bearing of fixing end（2）With spherical roller thrust bearing（3）, spherical roller
Thrust bearing（3）Positioned at clutch shaft bearing chamber away from shaft gear（1）The side of upper little gear, the first self-aligning roller bearing（2）It is located at
Clutch shaft bearing chamber is close to shaft gear（1）The side of upper little gear, upper press cover（5）And lower cover（8）Cooperatively form for top pressure the
One self-aligning roller bearing（2）One end and the compression end cap for sealing clutch shaft bearing chamber, clutch shaft bearing chamber is away from the side for compressing end cap
It is additionally provided with inwall in some along the circumferential direction uniform grooves, groove and is equipped with spring（21）, spring（21）One end withstand on
Bottom portion of groove, spring（21）Other end top be located at pressing plate（22）On, pressing plate（22）It is sticked in spherical roller thrust bearing（3）On
In order to spherical roller thrust bearing（3）Apply pretightning force, the first self-aligning roller bearing（2）With spherical roller thrust bearing
（3）Between be provided with distance collar（7）, adjust distance collar（7）So that spherical roller thrust bearing（3）With the first self-aligning roller bearing
（2）Track center of surface line cross to same point, while passing through spring（21）, upper press cover（5）And lower cover（8）Cooperation will
First self-aligning roller bearing（2）With spherical roller thrust bearing（3）It is fixed on clutch shaft bearing intracavitary；
The free end of described shaft gear is provided with free end shaft bearing（10）With free end end cap（9）, free end shaft bearing
（10）With free end end cap（9）It is provided with the second bearing chamber that the space fitted around is formed, second bearing chamber for supporting
Shaft gear（1）Second self-aligning roller bearing of free end, the second self-aligning roller bearing passes through locking nut（11）And tight locking button
（12）Cooperation is fixed on second bearing intracavitary, between being respectively formed between the second self-aligning roller bearing and the both sides inwall of second bearing chamber
Gap, close to shaft gear（1）One splaying of upper little gear is M, away from shaft gear（1）One splaying of upper little gear is N.
2. a kind of large-sized mining grinding mill little gear rolling supporting structure according to claim 1, it is characterised in that：Described
Fixed end bearing block（6）With fixed end bearing cover（4）Between pass through the bolt of mutual cooperation（25）, nut（26）And packing ring（27）
It is fixed together, fixed end bearing block（6）With fixed end bearing cover（4）Between also have finger setting（28）.
3. a kind of large-sized mining grinding mill little gear rolling supporting structure according to claim 1, it is characterised in that：Described
Free end shaft bearing（10）With free end end cap（9）Between pass through the bolt of mutual cooperation（25）, nut（26）And packing ring（27）
It is fixed together, free end shaft bearing（10）With free end end cap（9）Between also have finger setting（28）.
4. a kind of large-sized mining grinding mill little gear rolling supporting structure according to claim 1, it is characterised in that：Described
The two ends that clutch shaft bearing chamber wears the through hole of axle are provided with closure I, and closure I includes the top cover labyrinth I cooperated
（13）With lower sealing cover I（14）, round rubber pipe is passed through between closure I and the side wall of clutch shaft bearing chamber（23）Sealing, closure I
Sealed between the axle of shaft gear by O-ring seal, the two ends of the through hole that the second bearing chamber wears axle are provided with close
II is covered, closure II includes the top cover labyrinth II cooperated（15）With lower sealing cover II（16）, closure II and the second axle
Hold between the side wall of chamber by round rubber pipe（23）Sealing, is sealed, O between closure I and the axle of shaft gear by O-ring seal
Type sealing ring includes being located at the inner side O-ring seal close to gear shaft one end（35）It is O-shaped close with the outside away from gear shaft one end
Seal（19）, inner side O-ring seal（35）Place is provided with the inner seal ring coordinated with it（34）, outside O-ring seal（19）
Place is provided with the outer side seal ring coordinated with it（18）, pass through folder between clutch shaft bearing chamber and the side wall and axle of second bearing chamber
Cloth two-lip seal, folder cloth two-lip seal includes being located at the inner side folder cloth two-lip seal close to gear shaft one end（33）With remote gear
The outside folder cloth two-lip seal of axle one end（20）.
5. a kind of large-sized mining grinding mill little gear rolling supporting structure according to claim 1, it is characterised in that：Described
Fixed end bearing block（6）With free end shaft bearing（10）Pass through bottom plate（17）It is fixed on ground.
6. a kind of large-sized mining grinding mill little gear rolling supporting structure according to claim 1, it is characterised in that：Described
Fixed end bearing cover（4）On be machined with lubrication hydraulic fluid port A and lubrication hydraulic fluid port B, free end bearing cap（9）On be machined with lubrication hydraulic fluid port C,
Fixed end bearing block（6）With free end shaft bearing（9）Bottom be machined with oil-out L and oil-out K, clutch shaft bearing chamber and
The space of two bearing bores offers through hole and connected respectively with oil-out L and oil-out K, fixed end bearing block（6）Bottom is opened up
There are drain oil D and drain oil E, free end shaft bearing（9）Bottom offers drain oil F.
7. a kind of large-sized mining grinding mill little gear rolling supporting structure according to claim 1, it is characterised in that：Described
Free end bearing cap（9）With fixed end bearing cover（4）On be mounted on air cleaner（29）And platinum resistance thermometer sensor,（30）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335277.3A CN107131290A (en) | 2017-05-12 | 2017-05-12 | A kind of large-sized mining grinding mill little gear rolling supporting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335277.3A CN107131290A (en) | 2017-05-12 | 2017-05-12 | A kind of large-sized mining grinding mill little gear rolling supporting structure |
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| CN107131290A true CN107131290A (en) | 2017-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710335277.3A Pending CN107131290A (en) | 2017-05-12 | 2017-05-12 | A kind of large-sized mining grinding mill little gear rolling supporting structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372990A (en) * | 2018-10-31 | 2019-02-22 | 中核核电运行管理有限公司 | A kind of detachable gear oil seal ring |
| CN110259833A (en) * | 2019-05-28 | 2019-09-20 | 洛阳矿山机械工程设计研究院有限责任公司 | A kind of free end pinion shaft bearing block of large size double pinion driving grinding machine |
| CN111889587A (en) * | 2020-07-06 | 2020-11-06 | 安徽和光电气设备有限公司 | Electric power fitting stranded wire blanking forming device and implementation method thereof |
| CN110259833B (en) * | 2019-05-28 | 2024-06-21 | 中信重工机械股份有限公司 | Free end pinion shaft bearing seat of large double-pinion driving mill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109372990A (en) * | 2018-10-31 | 2019-02-22 | 中核核电运行管理有限公司 | A kind of detachable gear oil seal ring |
| CN109372990B (en) * | 2018-10-31 | 2023-11-14 | 中核核电运行管理有限公司 | Detachable oil retaining seal ring |
| CN110259833A (en) * | 2019-05-28 | 2019-09-20 | 洛阳矿山机械工程设计研究院有限责任公司 | A kind of free end pinion shaft bearing block of large size double pinion driving grinding machine |
| CN110259833B (en) * | 2019-05-28 | 2024-06-21 | 中信重工机械股份有限公司 | Free end pinion shaft bearing seat of large double-pinion driving mill |
| CN111889587A (en) * | 2020-07-06 | 2020-11-06 | 安徽和光电气设备有限公司 | Electric power fitting stranded wire blanking forming device and implementation method thereof |
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Application publication date: 20170905 |