CN107262529A - The axial elevating mechanism of screw rolling mill main shaft - Google Patents
The axial elevating mechanism of screw rolling mill main shaft Download PDFInfo
- Publication number
- CN107262529A CN107262529A CN201710610560.2A CN201710610560A CN107262529A CN 107262529 A CN107262529 A CN 107262529A CN 201710610560 A CN201710610560 A CN 201710610560A CN 107262529 A CN107262529 A CN 107262529A
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- China
- Prior art keywords
- main shaft
- cover
- housing
- bearing
- bearing holder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/18—Adjusting or positioning rolls by moving rolls axially
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
- Gear Transmission (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention discloses a kind of axial elevating mechanism for the screw rolling mill main shaft for producing helical blade, four row roller bearings and bearing holder (housing, cover) are housed between main shaft epimere outer wall and main spindle box body inwall, the coaxial fixed cover of bearing holder (housing, cover) epimere is outside four row roller bearings, bearing holder (housing, cover) lower end is extended downwardly until at the interlude of main shaft, adjustment ring of the coaxial sleeve outside main shaft is sequentially housed from top to bottom between main shaft interlude outer wall and bearing holder (housing, cover) hypomere inwall, thrust bearing, swivel nut and worm gear, adjustment ring upper surface is in close contact the shaft shoulder face of four row roller bearing inner rings and main shaft, adjustment ring lower surface is supported on thrust bearing upper surface, thrust bearing lower surface is supported on swivel nut upper surface, it is threadedly coupled between swivel nut outer wall and bearing holder (housing, cover) hypomere inwall, worm gear epimere is extended upwardly into swivel nut and is connected with swivel nut spline after the centre bore of bearing holder (housing, cover) lower surface from bottom to up, worm gear interlude is engaged with worm screw；Its axial location can be adjusted simultaneously in main shaft rotary course, operated easy and convenient.
Description
Technical field
The present invention relates to the axial elevating mechanism of the cold-rolling mill, specifically cold-rolling mill main shaft of production helical blade.
Background technology
Agricultural machinery, grain machinery, constructional engineering machinery, change are widely used to using the conveying worm of helical blade
The field such as work and mining machinery, for conveying material.Helical blade is typically formed with cold-rolling mill to strip continuous rolling, continuous cold
The main forming method of helical blade is rolled for the cold rolling forming method of cone roller antarafacial, and cone roller and roller mill main axle are fixedly connected on one
Rise, by roller mill main axle drive cone roller coaxial rotating so that it is cold rolling go out helical blade.When rolling helical blade, it is necessary to adjust cone
The axial location of roller, the blade of different size, the axial location of cone roller is different.The cone roller adjustment mechanism of existing cold-rolling mill, it is cold
It is machined with rolling-mill housing immediately below a kidney-shaped groove, groove and two pieces of square plates for being threaded hole is respectively welded, in cold-rolling mill
Main spindle box on be provided with a through hole, above square plate and level mandrel is penetrated into frame and main spindle box, during adjustment, first
The work of stopping main spindle box being needed, respectively bolt in the square plate below rotation mandrel, the upward plunger tip axle of bolt head makes on mandrel
Rise, drive whole main spindle box to lift by the mandrel of level, so as to drive lifting spindle；During decline, downward adjustment bolt, main spindle box
Decline by deadweight.This axial elevating mechanism, operability is poor, needs two people to stand respectively in frame both sides during adjustment and adjusts simultaneously
The bolt of whole both sides, otherwise can cause both sides unbalance stress, and main spindle box is easily tilted to side, and adjustment is difficult, operating cost expenses of labour
When.
The content of the invention
It is an object of the invention to solve the adjustment difficulty that the lifting spindle of the cold-rolling mill of rolling helical blade at present is present
The problem of, propose a kind of axial elevating mechanism for the screw rolling mill main shaft that can easily adjust cone roller axial location.
The present invention is for the technical scheme that is used of solution above-mentioned technical problem：In the epimere outer wall and main spindle box body of main shaft
Four row roller bearings and bearing holder (housing, cover) are housed, four row roller bearing coaxial sleeves are outside main shaft, and bearing holder (housing, cover) epimere is coaxially fixed between wall
It is enclosed on outside four row roller bearings, bearing holder (housing, cover) lower end is extended downwardly until at the interlude of main shaft；Main shaft interlude outer wall and bearing
Adjustment ring, thrust bearing, swivel nut and worm gear of the coaxial sleeve outside main shaft, adjustment are sequentially housed from top to bottom between set hypomere inwall
Ring upper surface is in close contact the shaft shoulder face of main shaft, and adjustment ring lower surface is supported on thrust bearing upper surface, thrust bearing lower end
Face is supported on swivel nut upper surface；Be connected through a screw thread between swivel nut outer wall and bearing holder (housing, cover) hypomere inwall, worm gear epimere from it is lower to
On extended upwardly into after the centre bore of bearing holder (housing, cover) lower surface in swivel nut, and be connected with swivel nut by spline, worm gear interlude and snail
Bar is engaged, and worm screw one end is stretched out outside main spindle box body.
Further, single-row roller bearing, single-row roller bearing are housed between main shaft hypomere outer wall and main spindle box body inwall
There is gap between main spindle box body inwall.
Further, the inner ring of four row roller bearings is fitted close with main shaft, outer ring and bearing holder (housing, cover) are fitted close, bearing holder (housing, cover)
Outer wall and main spindle box body inwall are fitted close；Adjustment ring and thrust bearing have gap cooperation with main shaft, with bearing holder (housing, cover) inwall it
Between leave gap.
It is of the invention to be using the beneficial effect obtained after above-mentioned technical proposal：
1st, the present invention can also adjust its axial location simultaneously in the rotary course of main shaft, and main shaft is lifted in rotation, without
Stop the work of main spindle box, it is therefore, easy to operate, operating efficiency can be improved.
2nd, the present invention uses worm and gear adjustment mechanism, compared with existing bolt is adjusted, and operation is more easy and convenient, only
Need one man operation just to complete, both sides unbalance stress will not be caused, reduce labor intensity.Again because of worm and gear adjustment mechanism
Itself have auto-lock function, so also ensure main shaft be adjusted in place after axial limiting.
3rd, the present invention drives directly to drive lifting spindle rather than drive and led by worm gear, adjustment swivel nut, thrust bearing etc.
Axle box is lifted, and adjusts relatively reliable, will not occur main spindle box to the inclined phenomenon in side.
Brief description of the drawings
Fig. 1 is internal structure sectional view of the present invention；
Fig. 2 is Fig. 1 left view；
Fig. 3 is Fig. 1 top view；
In figure：1. cone roller；2. main shaft；3. four row roller bearings；4. bearing holder (housing, cover)；5. main spindle box body；6. adjustment ring；7. thrust axis
Hold；8. swivel nut；9. worm gear；10. upper copper sheathing；11. lower copper sheathing；12. worm screw；13. single-row roller bearing；14. nut.
Embodiment
Referring to Fig. 1,2,3, main spindle box is installed, the most external of main spindle box is main spindle box body 5 on the milling train of cold rolling helical blade,
Main shaft 2 is protruded upward inside main spindle box body 5 outside main spindle box body 5, and is fixedly and coaxially connected cone roller 1.The hypomere of cone roller 1 is cone
In roll shaft, the centre bore that main shaft 2 is stretched into from top to bottom, the epimere of cone roller 1 is conehead, is stretched outside the surface of main shaft 2.
Four row roller bearings 3 and bearing holder (housing, cover) 4, four row rollers are installed between the epimere outer wall and the inwall of main spindle box body 5 of main shaft 2
Bearing 3 is Internal and external cycle separated type bearing, and the coaxial sleeve of four row roller bearing 3 is outside main shaft 2, and the epimere of bearing holder (housing, cover) 4 is coaxially fixed
It is enclosed on outside four row roller bearings 3.The inner ring of four row roller bearings 3 is fitted close with main shaft 2, the outer ring of four row roller bearings 3 with
Bearing holder (housing, cover) 4 is fitted close.It is fitted close between the outer wall of bearing holder (housing, cover) 4 and the inwall of main spindle box body 5.The lower end of bearing holder (housing, cover) 4 is extended downwardly
Until at the interlude of main shaft 2, having certain gap between the inwall and the outer wall of main shaft 2 of the hypomere of bearing holder (housing, cover) 4.
Single-row roller bearing 13 is installed, single-row roller bearing 13 is same between the hypomere outer wall and the inwall of main spindle box body 5 of main shaft 2
Axle sleeve is outside main shaft 2, to coordinate with a gap between single-row roller bearing 13 and the inwall of main spindle box body 5, is lifted in adjustment main shaft 2
When can slide axially.Fastened in the lower section nut 14 of single-row roller bearing 13,
Mounting and adjusting ring 6, thrust axis in order from top to bottom between the interlude outer wall of main shaft 2 and the inwall of the hypomere of bearing holder (housing, cover) 4
7, swivel nut 8 and worm gear 9 are held, adjustment ring 6, thrust bearing 7, swivel nut 8 and all coaxial sleeves of worm gear 9 are outside main shaft 2.
The lower surface of the inner ring of four row roller bearing 3 and the upper surface of adjustment ring 6 are in close contact, the lower surface branch of adjustment ring 6
Support is on the upper surface of thrust bearing 7, and the lower surface of thrust bearing 7 is supported on the upper surface of swivel nut 8.Adjustment ring 6 and thrust
The inner ring of bearing 7 has gap cooperation with main shaft 2, and gap is left between the inwall of bearing holder (housing, cover) 4.
Main shaft 2 is provided with the external diameter that the external diameter above the shaft shoulder, the shaft shoulder is more than below the shaft shoulder at the assembling with adjustment ring 6,
Therefore, adjustment ring 6 also withstands shaft shoulder face, makes adjustment ring 6 in the axial direction while being in close contact four row roller bearing 3 inner ring and master
The shaft shoulder face of axle 2.
It is machined with the outer wall of swivel nut 8 on external screw thread, the hypomere inwall of bearing holder (housing, cover) 4 and is machined with internal thread, swivel nut 8 and bearing
It is connected through a screw thread between set 4.Swivel nut 8 is integrally located in bearing holder (housing, cover) 4, and the internal diameter of swivel nut 8 is much larger than the external diameter of main shaft 2, with main shaft 2
Between stay in radial clearance.
The epimere of worm gear 9 is extended upwardly into swivel nut 8 after the lower surface centre bore of bearing holder (housing, cover) 4 from bottom to up, worm gear 9
Epimere outer wall, which is machined with external splines, the lower surface central through hole of swivel nut 8, is machined with internal spline, and the epimere and swivel nut 8 of worm gear 9 lead to
Spline is crossed to be fixedly connected.The inwall of worm gear 9 coordinates with a gap with main shaft 2.The empty set of worm gear 9 is outside main shaft 2, between main shaft 2
Coordinate with a gap.Upper copper sheathing 10 is cased between worm gear 9 and the lower surface centre bore of bearing holder (housing, cover) 4.
The interlude and hypomere of worm gear 9 are all outside bearing holder (housing, cover) 4, in main spindle box body 5.The interlude of worm gear 9 and snail
Bar 12 is in mating connection, and the central shaft of worm screw 12 and the central shaft of worm screw 12 are perpendicular in space, and one end of worm screw 12 is stretched out
The outside of main spindle box body 5, and this one end is set to square head structure, can match with spanner.The hypomere of worm gear 9 and main spindle box body 5
Inwall between be cased with lower copper sheathing 10, worm gear 9 is axially positioned on by upper copper sheathing 10 and lower copper sheathing 10 in main spindle box body 5, on
Copper sheathing 10 and lower copper sheathing 10 have gap cooperation with main shaft 2, are fitted close with bearing holder (housing, cover) 4 and main spindle box body 5.
During present invention work, in the square toes that the one end of worm screw 12 is inserted in the spanner of interior side, rotating spanner drives worm screw 12 to revolve
Turn, worm screw 12 drives worm gear 9 to rotate, the band movable snail sleeve 8 in the presence of interior external splines of worm gear 9 is rotated, and swivel nut 8 is by screw thread
Effect is lifted along bearing holder (housing, cover) 4, so that drive the thrust bearing 7 above it, adjustment ring 6 to lift, axle of the adjustment ring 6 through main shaft 2
Shoulder drives main shaft 2 to lift, and because the inner ring of four row roller bearings 3 is separated, therefore adjustment ring 6 finally drives the axle of cone roller 1
To lifting.Because the mechanism that worm gear 9, worm screw 12 constitute has auto-lock function, so can guarantee that the axial limiting of main shaft 2.
Claims (7)
1. a kind of axial elevating mechanism of screw rolling mill main shaft, it is characterized in that：Main shaft（2）Epimere outer wall and main spindle box body（5）
Four row roller bearings are housed between inwall（3）And bearing holder (housing, cover)（4）, four row roller bearings（3）Coaxial sleeve is in main shaft（2）Outside, bearing
Set（4）The coaxial fixed cover of epimere is in four row roller bearings（3）Outside, bearing holder (housing, cover)（4）Lower end is extended downwardly until main shaft（2）Centre
At section；Main shaft（2）Interlude outer wall and bearing holder (housing, cover)（4）From top to bottom sequentially equipped with coaxial sleeve in main shaft between hypomere inwall（2）
Outer adjustment ring（6）, thrust bearing（7）, swivel nut（8）And worm gear（9）, adjustment ring（6）Upper surface is in close contact main shaft（2）Axle
Shoulder face, adjustment ring（6）Lower surface is supported on thrust bearing（7）On upper surface, thrust bearing（7）Lower surface is supported on swivel nut（8）
On upper surface；Swivel nut（8）Outer wall and bearing holder (housing, cover)（4）It is connected through a screw thread between hypomere inwall, worm gear（9）Epimere is passed through from bottom to up
Cross bearing holder (housing, cover)（4）Swivel nut is extended upwardly into after the centre bore of lower surface（8）It is interior, and and swivel nut（8）Connected by spline, worm gear（9）In
Between section and worm screw（12）It is engaged, worm screw（12）One end is stretched out in main spindle box body（5）It is outside.
2. the axial elevating mechanism of screw rolling mill main shaft according to claim 1, it is characterized in that：Main shaft（2）Hypomere outer wall
And main spindle box body（5）Single-row roller bearing is housed between inwall（13）, single-row roller bearing（13）And main spindle box body（5）Inwall it
Between have gap.
3. the axial elevating mechanism of screw rolling mill main shaft according to claim 1, it is characterized in that：Four row roller bearings 3
Inner ring and main shaft（2）Tight fit, outer ring and bearing holder (housing, cover)（4）It is fitted close, bearing holder (housing, cover)（4）Outer wall and main spindle box body（5）Inwall
It is fitted close；Adjustment ring（6）And thrust bearing（7）And main shaft（2）There is gap cooperation, with bearing holder (housing, cover)（4）Left between inwall
Gap.
4. the axial elevating mechanism of screw rolling mill main shaft according to claim 1, it is characterized in that：Main shaft（2）With adjustment
Ring（6）Assembling at set the external diameter that external diameter above the shaft shoulder, the shaft shoulder is more than below the shaft shoulder, adjustment ring（6）Withstand on shaft shoulder face.
5. the axial elevating mechanism of screw rolling mill main shaft according to claim 1, it is characterized in that：Swivel nut（8）Positioned at bearing
Set（4）It is interior, swivel nut（8）Internal diameter is more than main shaft（2）External diameter.
6. the axial elevating mechanism of screw rolling mill main shaft according to claim 1, it is characterized in that：Worm gear（9）With main shaft（2）
There is gap cooperation, in worm gear（9）With bearing holder (housing, cover)（4）Between be cased with upper copper sheathing（10）, worm gear（9）Hypomere and main spindle box body（5）It is interior
Lower copper sheathing is cased between wall（10）, upper copper sheathing（10）And lower copper sheathing（10）With main shaft（2）There are gap cooperation, upper copper sheathing（10）With axle
Bearing sleeve（4）It is fitted close, lower copper sheathing（10）With main spindle box body（5）It is fitted close.
7. the axial elevating mechanism of screw rolling mill main shaft according to claim 1, it is characterized in that：Stretch in main spindle box body（5）
Outside worm screw（12）This one end is provided with the square toes that can match with spanner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610560.2A CN107262529B (en) | 2017-07-25 | 2017-07-25 | Axial lifting mechanism of main shaft of spiral rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610560.2A CN107262529B (en) | 2017-07-25 | 2017-07-25 | Axial lifting mechanism of main shaft of spiral rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107262529A true CN107262529A (en) | 2017-10-20 |
| CN107262529B CN107262529B (en) | 2020-07-28 |
Family
ID=60079394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710610560.2A Active CN107262529B (en) | 2017-07-25 | 2017-07-25 | Axial lifting mechanism of main shaft of spiral rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107262529B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021109800A1 (en) * | 2019-12-05 | 2021-06-10 | 大连富地重工机械制造有限公司 | Adjusting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1092796A (en) * | 1965-03-06 | 1967-11-29 | Schloemann Ag | Improvements in means for adjusting the relative positions of the circular blades ofedge-trimming shears |
| CN2122010U (en) * | 1992-03-04 | 1992-11-18 | 冶金工业部北京钢铁设计研究总院 | Axially regulating device for roller of rolling mill |
| CN2249135Y (en) * | 1996-05-09 | 1997-03-12 | 冶金工业部重庆钢铁设计研究院 | Axial adjusting device for rolling mill |
| CN201603741U (en) * | 2010-01-28 | 2010-10-13 | 北京京诚瑞信长材工程技术有限公司 | Reversible two-high reversible rolling mill |
| CN203764645U (en) * | 2014-02-27 | 2014-08-13 | 贵州惠波机械制造有限公司 | Bearing clearance regulating device for rollers |
-
2017
- 2017-07-25 CN CN201710610560.2A patent/CN107262529B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1092796A (en) * | 1965-03-06 | 1967-11-29 | Schloemann Ag | Improvements in means for adjusting the relative positions of the circular blades ofedge-trimming shears |
| CN2122010U (en) * | 1992-03-04 | 1992-11-18 | 冶金工业部北京钢铁设计研究总院 | Axially regulating device for roller of rolling mill |
| CN2249135Y (en) * | 1996-05-09 | 1997-03-12 | 冶金工业部重庆钢铁设计研究院 | Axial adjusting device for rolling mill |
| CN201603741U (en) * | 2010-01-28 | 2010-10-13 | 北京京诚瑞信长材工程技术有限公司 | Reversible two-high reversible rolling mill |
| CN203764645U (en) * | 2014-02-27 | 2014-08-13 | 贵州惠波机械制造有限公司 | Bearing clearance regulating device for rollers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021109800A1 (en) * | 2019-12-05 | 2021-06-10 | 大连富地重工机械制造有限公司 | Adjusting device |
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| Publication number | Publication date |
|---|---|
| CN107262529B (en) | 2020-07-28 |
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