CN110259833A - A kind of free end pinion shaft bearing block of large size double pinion driving grinding machine - Google Patents
A kind of free end pinion shaft bearing block of large size double pinion driving grinding machine Download PDFInfo
- Publication number
- CN110259833A CN110259833A CN201910452014.XA CN201910452014A CN110259833A CN 110259833 A CN110259833 A CN 110259833A CN 201910452014 A CN201910452014 A CN 201910452014A CN 110259833 A CN110259833 A CN 110259833A
- Authority
- CN
- China
- Prior art keywords
- bearing
- oil
- oil duct
- baffle ring
- roller bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
- F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
-
- 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
Abstract
The present invention relates to horizontal mill drive apparatus field, specifically a kind of free end pinion shaft bearing block of large-scale double pinion driving grinding machine.Including bearing base, bearing cap and CARB annulus roller bearing, axle sleeve is fitted between CARB annulus roller bearing and pedestal, the both ends that CARB annulus roller bearing is located in pedestal inner cavity are not equipped with the first baffle ring and the second baffle ring；Correspondence offers oilhole or oil duct on bearing (ball) cover, axle sleeve and the second baffle ring, so that lubricating oil can be entered in pedestal inner cavity by bearing (ball) cover, the outer round for grease outlet is offered on bearing base, outer round passes through respectively to be connected in intercommunicating pore and grease caching room positioned at the position at CARB annulus roller bearing both ends, hollow pipe close is fitted on an intercommunicating pore corresponding with above and below the second baffle ring, the upper edge of hollow pipe close is concordant in the middle part of the roller of CARB annulus roller bearing bottom.The present invention is convenient for disassembly and assembly, and convenient for lubrication, service life is longer.
Description
Technical field
The present invention relates to horizontal mill drive apparatus field, specifically a kind of large-scale double pinion drives oneself of grinding machine
By end pinion shaft bearing block.
Background technique
With the enlargement of grinding machine, the load of grinding machine is also increasing, and large-scale double pinion driving grinding machine is increasingly
Widely apply.The power of large-scale double pinion driving grinding machine has reached 2 × 9000Kw.And domestic and international 2 × 5500Kw or more
The damage of double drive grinding machine pinion bearings in production is not already an example.Large-scale double pinion drives grinding machine pinion shaft both ends
It is all made of self-aligning roller bearing at present, expensive, shutting down replacement is even more to seriously affect the production of mine side, therefore double pinion drives
The frequent breakage of grinding machine pinion bearing brings very big puzzlement to user and grinding machine manufacturer, causes great economic damage
It loses.
Free end self-aligning roller bearing bears biggish axial force, and floatability is poor in use process.In the prior art
It is transformed through the pinion bearing to frequent breakage, free end is used instead to the CARB annulus Roller Shaft with self-relocation performance
It holds, unique inner geometry construction of CARB annulus roller bearing can ensure that the load univesral distribution axial direction position between roller and raceway
It moves, up to ± the 10% of bearing width, the load between roller and raceway can keep being evenly distributed axial displacement, to realize most
Good service condition.But CARB annulus roller bearing is different from the self-aligning roller bearing outer dimension of its suitable bearing capacity,
There are problems for installation, and in addition annulus roller bearing outer ring is lubricated there are problem, service life is shorter without oil hole.
Summary of the invention
The present invention is intended to provide a kind of free end pinion shaft bearing block of large size double pinion driving grinding machine, dismounting side
Just, convenient for lubrication, service life is longer.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows: a kind of large size double pinion driving grinding machine
Free end pinion shaft bearing block, including bearing base, bearing cap and be fitted to bearing base and bearing cap is common
CARB annulus roller bearing in the pedestal inner cavity of formation offers oil filler point on bearing cap, CARB annulus roller bearing
Axle sleeve is fitted between outer ring and base vivo wall, the end positions that CARB annulus roller bearing is located in pedestal inner cavity are distinguished
It is fitted with the first baffle ring and the second baffle ring；
Interval, which is run through, on axle sleeve offers multiple first radial direction oil holes, and one of them first radial direction oil hole is connected with oil filler point,
Offer the first circumferential oil duct and the second circumferential oil being connected with multiple first radial direction oil holes respectively in the outside of axle sleeve and inside
Road, axle sleeve inside and be located at the location interval of second circumferential oil duct the same side and offer and multiple be connected with the second circumferential direction oil duct
Axial oil duct；One article of third circumferential direction oil duct and a plurality of are offered in the side of the second baffle ring towards CARB annulus roller bearing
Two radial direction oils, third circumferential direction oil duct connect with multiple axial oil ducts, one end of a plurality of second radial direction oil and the circumferential oil of third
Road is connected, and the center position of the other end towards the second baffle ring is distributed and is used to enter the drip of grease injected by oil filler point in pedestal
In chamber；
The bottom of present intracoelomic cavity forms the grease instilled for grease and caches room, is offered on bearing base for grease outlet
Outer round, outer round pass through respectively intercommunicating pore and grease caching room in be located at CARB annulus roller bearing both ends position connect
It is logical, hollow pipe close, the upper edge of hollow pipe close and CARB are fitted on an intercommunicating pore corresponding with above and below the second baffle ring
It is concordant in the middle part of the roller of annulus roller bearing bottom.
Preferably, the first radial direction oil hole is provided with the center in sleeve width direction.
Preferably, the cross-sectional shape of the first radial direction oil hole is circle, the first circumferential oil duct, the second circumferential oil duct, axial direction
The cross-sectional shape of oil duct, third circumferential direction oil duct and the second radial direction oil is semicircle.
Preferably, outer round is distributed through bearing base.
Preferably, with corresponding intercommunicating pore above and below the second baffle ring be taper, hollow pipe close using rubber material make and in
The lower part of blank pipe plug is the conical section being coupled with the intercommunicating pore of taper.
Beneficial effect
In the present invention by designed in the axle sleeve and the second baffle ring outside CARB annulus roller bearing reasonable oilhole and oil duct come
Solution CARB annulus roller bearing bring lubrication problem without oil groove itself.By lubricating oil from the first radial direction oil hole of axle sleeve and
Second circumferential oil duct is introduced into the third circumferential direction oil duct of the second baffle ring, and then the second diameter by being connected with third circumferential direction oil duct
Lubricating oil, which is realized, to oil duct flows into bearing block.It is fixed that second baffle ring also plays CARB annulus roller bearing in addition to having oil duct oil excessively
Position effect.
Hollow plug pipe both can allow lubricating oil to have certain liquid level in bearing block, and oil liquid is made not have the rolling of CARB annulus
Roller in sub- bearing, to keep lubricating oil another by the gap inflow bearing between roller from one end of CARB annulus roller bearing
One end enables bearing to lubricate, while also utilizing law of connected vessels, when oil level is excessively high oil liquid can through hollow pipe close from
It is flowed out in outer round, avoids excessively high oil level to bearing holder device sealing bring " pressure ", solve Leakage.
It is convenient that the configuration of the present invention is simple is rationally, processing is purchased, and installing and dismounting is convenient, safe and reliable.It is proven
It is that a kind of operating is reliable, can significantly extends the novel grinding machine pinion shaft support device of bearing life.Make free end CARB
Annulus roller bearing can preferably be floated, be lubricated, and improve the service life of pinion bearing, solve large-scale double pinion driving
The problem of grinding machine pinion bearing frequent breakage.
Detailed description of the invention
Fig. 1 is diagrammatic cross-section of the invention；
Fig. 2 is the schematic perspective view of bottom bracket axle part of the present invention；
Fig. 3 is the schematic perspective view of second gear loop section in the present invention；
Fig. 4 is the schematic perspective view of hollow tube plug portion of the present invention；
Fig. 5 is the structural schematic diagram that the present invention is assemblied under pinion shaft group state；
Marked in the figure: 1, bearing cap, 101, oil filler point, the 2, first baffle ring, 3, axle sleeve, the 301, first radial direction oil hole, 302, first
Circumferential oil duct, the 303, second circumferential oil duct, 304, axial oil duct, 4, CARB annulus roller bearing, the 5, second baffle ring, 501, third
Circumferential oil duct, the 502, second radial direction oil, 6, hollow pipe close, 601, conical section, 7, grease caching room, 8, bearing base, 801,
Outer round, 802, intercommunicating pore.
Specific embodiment
As shown in Figure 1 and Figure 5, the free end pinion shaft bearing block of a kind of large-scale double pinion driving grinding machine of the invention
It is assemblied in the right side of pinion shaft, left side is fixing end, assembly routine bearing block.The present invention includes bearing base 8 and passes through
Screw is assemblied in the bearing cap 1 on bearing base 8.The bearing seat with inner cavity is collectively formed in bearing base 8 and bearing cap 1,
CARB annulus roller bearing 4 is assemblied in pedestal.It is fitted between the outer ring and base vivo wall of CARB annulus roller bearing 4
It is tight fit between the interior edge of axle sleeve 3, axle sleeve 3 and pedestal and 4 outer ring of CARB annulus roller bearing.Pedestal is located in inner cavity
The end positions of CARB annulus roller bearing 4, which are respectively cooperating with, is equipped with the first baffle ring 2 and the second baffle ring 5, the first baffle ring 2 and second
Tight fit is distinguished between baffle ring 5 and 4 outer ring of CARB annulus roller bearing and axle sleeve 3.On pedestal, axle sleeve 3 and the second baffle ring 5
Oilhole or oil duct are offered, and CARB annulus roller bearing 4 itself can be solved by the circulation of lubricating oil in oilhole or oil duct
The bring lubrication problem without oil groove
As shown in Fig. 2, the center uniform intervals of 3 width direction of axle sleeve offer four the first radial direction oil holes 301, the first diameter
It is distributed to oilhole 301 through the thickness direction of axle sleeve 3, and is located at first radial direction oil hole 301 at the top of axle sleeve 3 and opens up
Oil filler point 101 on bearing cap 1 is connected.The first circumferential oil duct 302 is circumferentially offered in the outside of axle sleeve 3, first is circumferential
Oil duct 302 connects the end that four the first radial direction oil holes 301 are located at 3 outside of axle sleeve.It is circumferentially offered in the inside of axle sleeve 3
Second circumferential oil duct 303, the second circumferential oil duct 303 connect the end that four the first radial direction oil holes 301 are located at 3 inside of axle sleeve.
Axle sleeve 3 inside and be located at second circumferential 303 the same side of oil duct location interval offer it is multiple with the second circumferential oil duct 303
Connected axial oil duct 304.
As shown in figure 3, offering the circumferential oil of a third in the side of the second baffle ring 5 towards CARB annulus roller bearing 4
Road 501 and four the second radial direction oils 502.Third circumferential direction oil duct 501 therein and multiple axial oil ducts 304 are opposite in second week
Connect to one end of oil duct 303, one end of a plurality of second radial direction oil 502 is connected with third circumferential direction oil duct 501, other end direction
The center position of second baffle ring 5 is distributed and is used to enter the drip of grease injected by oil filler point 101 in the inner cavity of pedestal.As shown in figure 1
Arrow label direction shown in, the lubricating oil injected by oil filler point 101 fills the first circumferential oil duct 302 first, then distinguishes
Enter the second circumferential oil duct 303 by four the first radial direction oil holes 301, then enters the second baffle ring 5 by four axial oil ducts 304
On third circumferential direction oil duct 501 in, entered in pedestal inner cavity finally by four the second radial direction oils 502.
Any oil duct or oilhole are not opened up on the first baffle ring 2, the first baffle ring 2 only plays position-limiting action.
The cross-sectional shape of above-mentioned first radial direction oil hole 301 is circle, the first circumferential oil duct of circumferential oil duct 302, second
303, the cross-sectional shape of axial oil duct 304, third circumferential direction oil duct 501 and the second radial direction oil 502 is semicircle.
The bottom of present intracoelomic cavity forms the grease instilled for grease and caches room 7, and offers confession on bearing base 8
The outer round 801 that grease is discharged from grease caching room 7.Outer round 801 is distributed through bearing base 8, and outer round 801 is distinguished
Cached by intercommunicating pore 802 and grease and be located at the position at 4 both ends of CARB annulus roller bearing in room 7 and be connected to, with the second baffle ring 5
Hollow pipe close 6, upper edge and the CARB annulus Roller Shaft of hollow pipe close 6 are fitted on a upper and lower corresponding intercommunicating pore 802
It holds concordant in the middle part of the roller of 4 bottoms.Hollow plug pipe in the present invention both can allow lubricating oil to have certain liquid level in bearing block
Highly, oil liquid is made not have the roller in CARB annulus roller bearing 4, to make lubricating oil CARB annulus roller bearing 4 from Fig. 1
Right end bearing left end is flowed by the gap between roller, and then realize bearing lubrication.Law of connected vessels is also utilized simultaneously, when
Oil liquid can be flowed out from outer round 801 through hollow pipe close 6 when oil level is excessively high, avoid excessively high oil level to the bearing holder device
It seals bring " pressure ", solves Leakage.Intercommunicating pore 802 corresponding with the second about 5 baffle ring in the present embodiment is
Taper, hollow pipe close 6 use the lower part of rubber material production and hollow pipe close 6 to be coupled with the intercommunicating pore 802 of taper
Conical section 601, conical section 601 snugly with corresponding intercommunicating pore 802 connect, and be adjusted on hollow pipe close 6 along with
The relative altitude of 4 bottom roller of CARB annulus roller bearing, and then the liquid level of lubricating oil is adjusted, to adapt to different lubrications
It is required that.
Claims (5)
1. a kind of free end pinion shaft bearing block of large size double pinion driving grinding machine, including bearing base (8), bearing cap
(1) and the CARB annulus roller bearing that is fitted in the pedestal inner cavity that bearing base (8) and bearing cap (1) are collectively formed
(4), it is offered on bearing cap (1) oil filler point (101), it is characterised in that: the outer ring of CARB annulus roller bearing (4) and pedestal
It is fitted between inner wall axle sleeve (3), the end positions in pedestal inner cavity positioned at CARB annulus roller bearing (4) are respectively cooperating with
First baffle ring (2) and the second baffle ring (5) are installed；
Interval, which is run through, on axle sleeve (3) offers multiple first radial direction oil holes (301), and one of them first radial direction oil hole (301)
It is connected with oil filler point (101), offers in the outside of axle sleeve (3) and inside and be connected with multiple first radial direction oil holes (301) respectively
The first circumferential oil duct (302) and the second circumferential oil duct (303), axle sleeve (3) inside and be located at the second circumferential direction oil duct (303)
The location interval of the same side offers multiple axial oil ducts (304) being connected with the second circumferential oil duct (303)；In the second baffle ring
(5) a third circumferential direction oil duct (501) and a plurality of second radial direction oil are offered towards the side of CARB annulus roller bearing (4)
(502), third circumferential direction oil duct (501) connects with multiple axial oil ducts (304), one end of a plurality of second radial direction oil (502) with
Third circumferential direction oil duct (501) is connected, and the center position of the other end towards the second baffle ring (5) is distributed and be used for will be by oil filler point
(101) drip of grease injected enters in the inner cavity of pedestal；
Grease caching room (7) instilled for grease is formed on the bottom of present intracoelomic cavity, offers fuel feeding on bearing base (8)
The outer round (801) of rouge outlet, outer round (801) is respectively by being located at CARB circle in intercommunicating pore (802) and grease caching room (7)
The position at ring roller bearing (4) both ends is connected to, and is pacified with cooperation on the second baffle ring (5) up and down a corresponding intercommunicating pore (802)
Equipped with hollow pipe close (6), the upper edge of hollow pipe close (6) is concordant in the middle part of the roller of CARB annulus roller bearing (4) bottom.
2. a kind of free end pinion shaft bearing block of large-scale double pinion driving grinding machine according to claim 1, special
Sign is: the first radial direction oil hole (301) is provided with the center of axle sleeve (3) width direction.
3. a kind of free end pinion shaft bearing block of large-scale double pinion driving grinding machine according to claim 1, special
Sign is: the cross-sectional shape of the first radial direction oil hole (301) is circle, the first circumferential oil duct (302), the second circumferential oil duct
(303), the cross-sectional shape of axial oil duct (304), third circumferential direction oil duct (501) and the second radial direction oil (502) is half
It is round.
4. a kind of free end pinion shaft bearing block of large-scale double pinion driving grinding machine according to claim 1, special
Sign is: outer round (801) is distributed through bearing base (8).
5. a kind of free end pinion shaft bearing block of large-scale double pinion driving grinding machine according to claim 1, special
Sign is: with the second baffle ring (5) up and down corresponding intercommunicating pore (802) be taper, hollow pipe close (6) using rubber material make and
The lower part of hollow pipe close (6) is the conical section (601) being coupled with the intercommunicating pore (802) of taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910452014.XA CN110259833A (en) | 2019-05-28 | 2019-05-28 | A kind of free end pinion shaft bearing block of large size double pinion driving grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910452014.XA CN110259833A (en) | 2019-05-28 | 2019-05-28 | A kind of free end pinion shaft bearing block of large size double pinion driving grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110259833A true CN110259833A (en) | 2019-09-20 |
Family
ID=67915737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910452014.XA Pending CN110259833A (en) | 2019-05-28 | 2019-05-28 | A kind of free end pinion shaft bearing block of large size double pinion driving grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110259833A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081825A (en) * | 2020-10-19 | 2020-12-15 | 常熟市天博金属制品有限公司 | Sealed rotating shaft |
-
2019
- 2019-05-28 CN CN201910452014.XA patent/CN110259833A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081825A (en) * | 2020-10-19 | 2020-12-15 | 常熟市天博金属制品有限公司 | Sealed rotating shaft |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 471003 Jianshe Road, Jianxi, Henan, No. 206, Applicant after: CITIC Heavy Industry Machinery Co., Ltd. Applicant after: Luoyang Mining Machinery Engineering Institute Co., Ltd. Address before: 471003 Jianshe Road, Jianxi, Henan, No. 206, Applicant before: Luoyang Mining Machinery Engineering Institute Co., Ltd. Applicant before: CITIC Heavy Industry Machinery Co., Ltd. |
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| CB02 | Change of applicant information |