CN202207710U - Positioning device for rolling mill bearing base - Google Patents
Positioning device for rolling mill bearing base Download PDFInfo
- Publication number
- CN202207710U CN202207710U CN 201120159262 CN201120159262U CN202207710U CN 202207710 U CN202207710 U CN 202207710U CN 201120159262 CN201120159262 CN 201120159262 CN 201120159262 U CN201120159262 U CN 201120159262U CN 202207710 U CN202207710 U CN 202207710U
- Authority
- CN
- China
- Prior art keywords
- column
- section
- rolling mill
- step face
- holder assembly
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a positioning device for a rolling mill bearing device of steel rolling equipment. The positioning device comprises a first bearing base component, an upright post and a rolling mill machine base, wherein a step surface with downward plate surface is arranged on the middle lower section of the upright post; a limiting mechanism which applies pressure to the bearing base component to pre-tighten and position the up and down displacement is formed between the step surface and an upward supporting surface of the rolling mill machine base; and the positioning device can effectively apply pressure to pre-tighten and position the lower rolling mill bearing base.
Description
Technical field
The utility model relates to steel rolling equipment, specifically is exactly the rack construction of milling train.
Background technology
Mostly the processing of prior art center line bar is to adopt mill milling to form.And milling train come to divide with regard to its structure and generally can be divided into memorial archway open frame, cantilevered frame or be welded as the memorial archway open frame by section bar; The adjusting of roll shop building distance and control directly cause treating the size of rolling product, treat that rolling dimensional accuracy of products relies on the precision and the selection of the integral rigidity of rolling-mill housing and roll, roll again.At present; No matter in the milling train of memorial archway open frame, cantilevered frame; With the vertical example that is installed as of memorial archway open frame, the distortion of its above-below direction is big, be difficult to control, because step all is to adopt the bolt base part to be fixed on the bottom support bracket of memorial archway open frame; The screwdown gear of top chock normally is arranged on the upper beam; When rolling like this, the memorial archway open frame all receives pulling force and elongation strain at the column between bottom support bracket and the upper beam in its whole length range, and its anamorphic stretching amount is big; For the cantilevered frame, the distortion situation of its column is similar basically.In other words, the insufficient rigidity of rolling-mill housing, the distortion of other parts in addition, the error after the accumulative total is just very big, is difficult to satisfy rolling season requirement.
Name is called the patent documentation of " sheet rolling mill that the backing roll body of roll has the hydraulic pressure hold-down devices " (publication number CN101658862A); Its rolling-mill housing comprises superposed horizontal frame 10, is positioned at the frame underbeam 12-1 of bottom and is positioned at column 1 between the two; Its overall structure can be regarded the memorial archway open frame as, and column wherein all elongation strain can take place in work Shi Qi length overall scope.
Name is called the patent documentation of " composite machine frame of mill " (publication number CN2796875Y); Its frame comprises upper and lower crossbeam 1,4 and each column 2 that connects both, adopts bar 8 to be connected with nut 9 between upper and lower crossbeam 1,4 and the column 2, and column 2 just receives the effect of compression like this; The defective of this structure is; Can't meet the demands perpendicular to the location on column 2 directions between upper and lower crossbeam 1,4 and the column 2, because, the pressure that provides each other between upper and lower crossbeam 1,4 and the column 2; The position of keeping perpendicular to column 2 directions will depend on frictional force each other, and this is extremely insecure; In addition; Because the structure self that bar 8 is connected with nut 9 restriction; Its pretightning force that provides is very limited; In a single day external force in the operation of rolling offset bar 8 and the pretightning force that nut 9 provides, and possibly cause when serious breaking away from each other between upper and lower crossbeam 1,4 and the column 2, with being far from being rolling accuracy.
Name is called the patent documentation of " the roll gap regulating system of no frame mill stand " (publication number CN1108975A); The screw rod 12 that comprises the right-hand thread section 22c of the left-handed thread section 22a on a top, the cylindrical section 22b in the middle of one and a bottom in its structure; First and second adjacent bearing block assembly is interconnected by the identical screw rod 12 of a pair of structure; Thereby the cylindrical section 22b in the middle of the screw rod 12 fixes vertically and makes axle journal with respect to frame spare 28 and in frame spare 28, rotates; Frame spare 28 itself is supported on the pedestal 30; The right-hand thread section 22c of the left-handed thread section 22a on top and bottom links to each other respectively at first and second bearing block assembly, in fact first and second bearing block assembly be do simultaneously near or disengaging movement realize the adjusting of roll gap.The defective of this scheme is: the equal elongation strain of the long scope of its whole bar when screw rod 12 receives tension, and its rigidity is poor; The lower end of screw rod 12 is sagging shape; When second roll 14 on second bearing block assembly receives the shock loading of line bar direction of travel when rolling; The bent distortion of also bending of the lower end of screw rod 12 causes the New Year operating position of first and second roll to be subjected to displacement, and has a strong impact on rolling accuracy.
The targeting scheme that does not also have at present very good, reliable step assembly in the prior art.With the vertical working state is example; In general; Usually at first consider the location of step assembly and fixing; Find a positioning reference relatively easy, and if with the step reliable fixation on this positioning reference and do not receive the impact of external force roll to occur to beat, this technical barrier does not also solve at present.
The utility model content
The purpose of the utility model provides a kind of positioner of rolling mill bearing, and this positioner can be implemented efficient pressure pretension location to following rolling mill bearing.
For realizing above-mentioned utility model purpose; The utility model has adopted following technical scheme: a kind of positioner of rolling mill bearing; Comprise clutch shaft bearing holder assembly, column and mill stand; It is characterized in that: the middle hypomere position of column is provided with the prone step surface of plate, constitutes the position-limit mechanism of bearing block assembly being implemented the above-below direction displacement of pressure pretension location between the supporting surface that this step surface and mill stand make progress.
Can know by technique scheme; Middle hypomere position at column is provided with the prone step surface of plate; Space between the supporting surface that this step surface and mill stand make progress holds bearing block assembly; Because the lower end of column reliably is connected with mill stand, at first lets column drawn distortion during assembling, i.e. the suitably stretcher strain thereupon of length between the junction of step surface and its lower end and mill stand; Let the following shaft of this step surface be under the extended state and by this step surface exactly and be depressed on the bearing block assembly, the size of this preload pressure is determined by the deflection that drawn of column.Be exactly to have avoided beating of bearing block assembly like this; Has only the outside impulse force that receives when bearing block assembly the pretightning force of being drawn distortion to provide greater than column; Beating of bearing block assembly just can occur; And the appearance of avoiding this situation adopts the utility model just can to solve smoothly, and the impulse force size that occurs when foundation is rolling, material and the cross section of selecting column calculate rational stretcher strain amount and just suitable prefastening force can be provided.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of column;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the A-A cutaway view among Fig. 1.
The specific embodiment
Line rod sheet material adds man-hour, and the non-deformability that rolling accuracy not only depends on roll is a rigidity, and the while also needs the frame of milling train to possess the reliability of the fixed structure of reliable rigidity and frame breaker roll.The utility model is exactly to propose new aspect the fixed structure of rigidity of frame structure and frame breaker roll and the obvious results scheme.Below specify.
A kind of positioner of rolling mill bearing; Comprise clutch shaft bearing holder assembly 30, column 20 and mill stand 10; The middle hypomere position of column 20 is provided with the prone first step face 21 of plate, constitutes the position-limit mechanism of clutch shaft bearing holder assembly 30 being implemented the above-below direction displacement of pressure pretension location between the supporting surface that this first step face 21 and mill stand 10 make progress.
During assembling; Stretching column 20 makes the length suitably stretcher strain thereupon between the junction of first step face 21 and its lower end and mill stand 10; The shaft of this first step face below 21 is under the extended state and by this first step face 21 and is depressed on the clutch shaft bearing holder assembly 30, and the size of this preload pressure is determined by the deflection that drawn of column 20.Has only the outside impulse force that receives when clutch shaft bearing holder assembly 30 the pretightning force of being drawn distortion to provide greater than column 20; Beating of clutch shaft bearing holder assembly 30 just can occur; The utility model acts on the clutch shaft bearing holder assembly 30 with regard to providing suitable preload pressure; Under the supporting role of mill stand 10, clutch shaft bearing holder assembly 30 is located reliably simultaneously.
As preferred version; Like Fig. 1,2, shown in 3; The epimere of described column 20 is that cylindrical thread section 22a, stage casing are that the cross section is square square column section 22b and the following hypomere 22c of square column section 22b; Square column section 22b and hypomere 22c intersection form first step face 21, the plate face level of first step face 21 or oblique downward, and preferred version is that the plate face level of first step face 21 is downward; Can provide to greatest extent like this and act on preload pressure on the clutch shaft bearing holder assembly 30, and the processing of column 20 is also very convenient.
Like Fig. 2, shown in 3; The hypomere 22c of the first step face of described column 20 below 21 has the pole face 23 that is parallel to each other; Pole face 23 is axial vertical with roll, and this hypomere 22c is positioned at the cell body 11 that the notch of mill stand 10 makes progress, and the spacing that said two pole faces that are parallel to each other are 23 and the groove width of cell body 11 are coincide; Between the lower end of hypomere 22c and the cell body 11 jointed shaft 60 is set, jointed shaft 60 is parallel with the axle core of roll.
The vallecular cavity zone of cell body 11 should be able to guarantee that the end of described column 20 inserts in it, can provide column 20 to rotate requisite spaces simultaneously.The spacing that described two pole faces are 23 and the groove width of cell body 11 coincide to limit exactly column 20 roll mandrel to displacement, for the location of first and second bearing block assembly 30,40 provides the basis, location.
The hole is offered at the rod end position at pole face 23 places on the described column 20, and the hole constitutes hinged the cooperation with jointed shaft 60, and the hole is perpendicular to the plane at pole face 23 places.Said structure can be guaranteed the reliability that cooperates and the rigidity of column 20 and mill stand 10; In other words column 20 with respect to mill stand 10 only with jointed shaft 60 the axle core rotate maybe; This is the matching relationship when the dismounting roll; The free degree of other direction all is defined, and also effectively could breaker roll bearing block group be implemented reliable localization behind the location just because of column 20.
The below of the first step face 21 of described column 20 has one section cylinder to be positioned at the groove of offering on the clutch shaft bearing holder assembly 30 31, and both cooperate formation restriction clutch shaft bearing holder assembly 30 along the axially movable position-limit mechanism of roll.As shown in Figure 3, first step face 21 is that the center plane of symmetry with the pole face 23 that is parallel to each other is arranged symmetrically in pole face 23 both sides, and the center plane of symmetry of said pole face 23 is perpendicular to the axial direction of roll.The pressure that so just can guarantee to act on groove 31 ports is even and symmetrical, has avoided column 20 to receive the moment of flexure effect and buckling phenomenon occurs.
The end surface shape of described clutch shaft bearing holder assembly 30 is a reversed convex type, and with described mill stand 10 on the concave regions offered constitute the position-limit mechanism that the described clutch shaft bearing holder assembly 30 of restriction moves along rolling material direct of travel.This is through having realized clutch shaft bearing holder assembly 30 and cooperating of mill stand 10 location, position along rolling material direct of travel.
Said structure is exactly to have realized the displacement of clutch shaft bearing holder assembly 30 top to bottom, left and right, front and rear directions and the rotation of respective direction, thus the reliable location of having realized clutch shaft bearing holder assembly 30.
Described groove 31 be positioned at clutch shaft bearing holder assembly 30 first halves pedestal the both sides, front and back and run through the upper and lower end face of the first half; The notch of described groove 31 points to fore-and-aft direction and the cross section is a U-shaped, the cylinder that be positioned at groove of first step face below 21 on the cell wall of groove 31 parallel and groove width and the column 20 roll mandrel to size identical.The cooperation that so just can realize column 20 and groove 31 easily with separate.This is through the cooperate axial location that realize clutch shaft bearing holder assembly 30 of column 20 with clutch shaft bearing holder assembly 30.
Cylinder between described second step face 25 and the first step face 21 is a cylinder, and this section cylinder is positioned at groove 31, and both cooperate formation restriction clutch shaft bearing holder assembly 30 along the axially movable position-limit mechanism of roll.This matching relationship not only can be realized reliable localization, and is simultaneously also convenient for assembly, when promptly making things convenient for column 20 to rotate in the smooth lead-in groove 31 or in groove 31, shift out.
The epimere of described column 20 is cylindrical thread section 22a; Be provided with cylindrical section 22d between cylindrical thread section 22a and the square column section 22b; This cylindrical section 22d cooperates grafting with hole on the entablature 50; The upper end that square column section 22b is positioned at the cylinder of material exit side is provided with inclined-plane 24, and to cylindrical section 22d transition, the lower surface of entablature 50 is provided with the symmetrical inclined-plane 51 that coincide with inclined-plane 24 from square column section 22b on inclined-plane 24.
In conjunction with shown in Figure 1; Say on the whole that rolling-mill housing comprises and set up post 20, mill stand 10 and entablature 50; One end of described column 20 is hinged by jointed shaft 60 realizations and mill stand 10, and described column 20 other ends pass entablature 50 and locked by nut 70.The nut 70 that is used to lock is selected hydraulic nut for use, can realize reliable bonding strength like this and alleviate the hand labor intensity in the assembling process.During the demolition, installation roll; Can unload lower nut 70 earlier and hang entablature 50; Rotating column 20 makes it be deployed condition separated from one another; Reserve the space that supplies roll to take on or hang out this moment, roll is changed the back that finishes and is rotated column 20 and make it be in the cooperation position with roll, refill entablature 50 also locking nut 70 get final product.
Between the first step face 21 of described column 20 and the pole face 23 that is parallel to each other cylindrical section 22e is arranged; Constitute between the upper end of described pole face 23 and the cylindrical section 22e towards the second step face 25 of milling train rear side below; Second step face 25 and 50～80 ° of horizontal plane angles are preferably 60 °.This angle can guarantee that the dismounting roll is as the criterion.Described second step face 25 is to be provided with for the aperture that limits column 20 rotating opening; In conjunction with Fig. 1,2; Column 20 turns to the appropriate location, and second step face 25 will contact with the suitable position of mill stand 10, and column 20 just is supported on this aperture position; Column 20 will separate with roll clutch shaft bearing holder assembly 30 this moment, and can conveniently implement the dismounting operation of roll this moment.
Described second step face 25 towards milling train be positioned at treat the rolled parts direct of travel forward and backward outside side-lower; Be meant that second step face 25 has any different because of the position of column 20 is different; Promptly four columns 20 have two feed sides that are positioned at roll, and other two root posts 20 are positioned at the exit side of roll; The second step face 25 on feed side two root posts 20 of roll of being positioned at towards the front lower place of roll feed side to; The second step face 25 on exit side two root posts 20 of roll of being positioned at towards the back lower place of roll exit side to, be to treat the direct of travel of rolled parts like the sword head direction among Fig. 1.
As shown in Figure 1, between described first step face 21 and the clutch shaft bearing holder assembly 30 and or clutch shaft bearing holder assembly 30 and mill stand 10 between be provided with cushion block 80.Just when assembling; Be convenient to earlier clutch shaft bearing holder assembly 30 is placed on the mill stand 10; Rotating column 20 makes and is arranged in hypomere ground part cylinder on it and is positioned at groove 31; First step face 21 is higher than the suitable distance in clutch shaft bearing holder assembly 30 upper surfaces at this moment, and the position is gone in the rotation of being convenient to column 20 like this, and the cushion block 80 of stretching column 20 suitable distortion back placement suitable thickness between first step face 21 and clutch shaft bearing holder assembly 30 upper surfaces therebetween; To guarantee column 20 due amount of tension, guarantee the pretension tension according to this.
Provide the external force of column 20 stretcher strains to be accomplished by oil cylinder, brief description as follows.
The scheme that the utility model has adopted column 20 hypomeres that clutch shaft bearing holder assembly 30 pretensions are compressed; Under the external force effect of normal rolling work; Phenomenon can not appear extending in column 20 hypomeres again, that is to say that clutch shaft bearing holder assembly 30 has been located reliably, even if the stretching phenomenon appears in the shaft of the column 20 of first step face more than 21; The influence that variation brought of breaker roll spacing also is very limited, thereby has improved the rolling accuracy of milling train widely.This online adjusting and control for the roll shop building distance of milling train provides reliable assembling basis.
Claims (10)
1. the positioner of a rolling mill bearing; Comprise clutch shaft bearing holder assembly (30), column (20) and mill stand (10); It is characterized in that: the middle hypomere position of column (20) is provided with the prone first step face of plate (21), constitutes the position-limit mechanism of clutch shaft bearing holder assembly (30) being implemented the above-below direction displacement of pressure pretension location between the supporting surface that this first step face (21) and mill stand (10) make progress.
2. the positioner of rolling mill bearing according to claim 1; It is characterized in that: the epimere of described column (20) is that cylindrical thread section (22a), stage casing are that the cross section is square square column section (22b) and the following hypomere (22c) of square column section (22b); Square column section (22b) forms first step face (21) with hypomere (22c) intersection, the plate face level of first step face (21) or oblique downward.
3. the positioner of rolling mill bearing according to claim 1; It is characterized in that: the hypomere (22c) below the first step face (21) of described column (20) has the pole face (23) that is parallel to each other; Pole face (23) is axial vertical with roll; This hypomere (22c) is positioned at the cell body (11) that the notch of mill stand (10) makes progress; The spacing between said two pole faces (23) that are parallel to each other and the groove width of cell body (11) are coincide, and between the lower end of hypomere (22c) and the cell body (11) jointed shaft (60) are set, and jointed shaft (60) is parallel with the axle core of roll.
4. the positioner of rolling mill bearing according to claim 1; It is characterized in that: the groove (31) that the below of the first step face (21) of described column (20) has one section cylinder to be positioned to offer on the clutch shaft bearing holder assembly (30), both cooperate and constitute restriction clutch shaft bearing holder assembly (30) along the axially movable position-limit mechanism of roll.
5. the positioner of rolling mill bearing according to claim 1; It is characterized in that: the end surface shape of described clutch shaft bearing holder assembly (30) is a reversed convex type, and with described mill stand (10) on the concave regions offered constitute the position-limit mechanism that the described clutch shaft bearing holder assembly of restriction (30) moves along rolling material direct of travel.
6. the positioner of rolling mill bearing according to claim 1; It is characterized in that: the epimere of described column (20) is cylindrical thread section (22a); Be provided with cylindrical section (22d) between cylindrical thread section (22a) and the square column section (22b); This cylindrical section (22d) cooperates grafting with hole on the entablature (50); The upper end that square column section (22b) is positioned at the cylinder of material exit side is provided with inclined-plane (24), and inclined-plane (24) to cylindrical section (22d) transition, the lower surface of entablature (50) is provided with the symmetrical inclined-plane (51) that coincide with inclined-plane (24) from square column section (22b).
7. the positioner of rolling mill bearing according to claim 4; It is characterized in that: between the first step face (21) of described column (20) and the pole face (23) that is parallel to each other cylindrical section (22e) is arranged; Constitute between the upper end of described pole face (23) and the cylindrical section (22e) towards the second step face (25) of milling train rear side below; Second step face (25) and 50～80 ° of horizontal plane angles are preferably 60 °.
8. the positioner of rolling mill bearing according to claim 1 is characterized in that: be provided with cushion block (80) between described first step face (21) and the clutch shaft bearing holder assembly (30) and/or between clutch shaft bearing holder assembly (30) and the mill stand (10).
9. the positioner of rolling mill bearing according to claim 7; It is characterized in that: described groove (31) be positioned at clutch shaft bearing holder assembly (30) first half pedestal the both sides, front and back and run through the upper and lower end face of the first half; The notch of described groove (31) points to fore-and-aft direction and the cross section is a U-shaped, the cylinder that is positioned at groove below the first step face (21) on the cell wall of groove (31) parallel and groove width and the column (20) roll mandrel to size identical.
10. according to the positioner of claim 7 or 9 described rolling mill bearings, it is characterized in that: the main body between described second step face (25) and the first step face (21) is a cylinder, and this section cylinder is positioned at groove (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120159262 CN202207710U (en) | 2011-05-18 | 2011-05-18 | Positioning device for rolling mill bearing base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120159262 CN202207710U (en) | 2011-05-18 | 2011-05-18 | Positioning device for rolling mill bearing base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202207710U true CN202207710U (en) | 2012-05-02 |
Family
ID=45987266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120159262 Expired - Lifetime CN202207710U (en) | 2011-05-18 | 2011-05-18 | Positioning device for rolling mill bearing base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202207710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303049A (en) * | 2011-05-18 | 2012-01-04 | 合肥市百胜科技发展股份有限公司 | Positioning device for bearing seat of rolling mill |
-
2011
- 2011-05-18 CN CN 201120159262 patent/CN202207710U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303049A (en) * | 2011-05-18 | 2012-01-04 | 合肥市百胜科技发展股份有限公司 | Positioning device for bearing seat of rolling mill |
| WO2012155851A1 (en) * | 2011-05-18 | 2012-11-22 | 合肥市百胜科技发展股份有限公司 | Rolling mill bearing positioning device |
| CN102303049B (en) * | 2011-05-18 | 2013-11-13 | 合肥市百胜科技发展股份有限公司 | Positioning device for bearing seat of rolling mill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102303049B (en) | Positioning device for bearing seat of rolling mill | |
| CN102310080B (en) | Rolling mill | |
| CN102310079A (en) | Intelligent rolling mill | |
| CN104668290A (en) | Rolling mill | |
| CN101918153B (en) | Rolling mill, and tandem rolling mill having the same | |
| CN106040742B (en) | A kind of milling train | |
| CN102310085A (en) | Adjustment device of rolling mill roller | |
| CN101823110B (en) | Twin-roller rotary-forging machine | |
| CN202207710U (en) | Positioning device for rolling mill bearing base | |
| CN102327901B (en) | Rolling mill stand | |
| CN102371291A (en) | Multi-beam plate leveller | |
| CN102553932A (en) | Two-roll tandem pipe mill and roll framework locking device thereof | |
| CN202123106U (en) | Stand of rolling mill | |
| CN202123103U (en) | Rolling mill | |
| CN202123107U (en) | Adjusting device for rollers of rolling mill | |
| CN101658862A (en) | Sheet rolling mill with hydraulic screwdown on support roll | |
| US3621693A (en) | Straightening machine for structural workpieces | |
| CN104907336A (en) | Multi-rack type multi-roller rolling mill | |
| CN101676042B (en) | 12-roll and 20-roll rolling mills comprising replaceable roll systems and replacing method thereof | |
| CN202123102U (en) | Intelligent rolling mill | |
| CN105057401A (en) | Tool-die steel plate straightening machine | |
| CN201308905Y (en) | 12/20 roller system interchangeable rolling mill | |
| CN207756861U (en) | Blank drawing device of large-section vertical continuous casting machine | |
| CN102413956B (en) | Reversing stand having inlet and outlet guides | |
| CN200995227Y (en) | High-rigidity and small-flexiblity wide-band roller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120502 Effective date of abandoning: 20131113 |
|
| RGAV | Abandon patent right to avoid regrant |