CN101733288B - Device for balancing upper and lower main transmission shafts of heavy and medium plate mill - Google Patents
Device for balancing upper and lower main transmission shafts of heavy and medium plate mill Download PDFInfo
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- CN101733288B CN101733288B CN2008102021825A CN200810202182A CN101733288B CN 101733288 B CN101733288 B CN 101733288B CN 2008102021825 A CN2008102021825 A CN 2008102021825A CN 200810202182 A CN200810202182 A CN 200810202182A CN 101733288 B CN101733288 B CN 101733288B
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- transmission shafts
- main transmission
- gantry frame
- heavy
- hydraulic cylinder
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Abstract
The invention discloses a device for balancing upper and lower main transmission shafts of a heavy and medium plate mill, which comprises a gantry frame of which a bottom is fixed on the bottom surfaces of the outer sides of the upper and lower main transmission shafts, and also comprises two mounting brackets, two mounting plates, four sliding chutes, a pair of upper balancing hydraulic cylinders, a pair of lower balancing hydraulic cylinders and two axial positioning devices. The device of the invention for balancing the upper and lower main transmission shafts of the heavy and medium plate mill realizes appropriate balance control over the main transmission shafts and main shaft support during the replacement of working rolls, and can meet the requirement on the gravity balancing of the main transmission shafts in a rolling process under the condition of the relatively greater self-weights of the main transmission shafts, keep the position of a main shaft during roll replacement, perform axial and rigid positioning on the main transmission shafts and avoid impact damaging a main motor rotor shaft of the mill under the condition of high impact.
Description
Technical field
The present invention relates to a kind of corollary equipment that is used on the heavy and medium plate mill, particularly a kind of bascule that is used for the upper and lower main transmission shafts of heavy and medium plate mill.
Background technology
The main effect of mill's main drive shaft bascule is: 1. the gravity of balancing main shaft is to reduce the influence of its breaker roll (one is nose heave, and one light); 2. during roll change, when working roll is extracted out, keep main spindle's constant, be beneficial to roll and pack into.The technical development of modern hot rolling mill main transmission balance sysmte is rapid, has successively occurred the bascule of many kinds of structures at home and abroad, and structure commonly used at present has following several, as depicted in figs. 1 and 2.These bascules have obtained application in a lot of places, but all there are problems such as complex structure, accuracy of manufacture height, electrichydraulic control complexity in these bascules, are not suitable for the national conditions that China designs hot-rolling mill voluntarily.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, a kind of bascule that is used for the upper and lower main transmission shafts of heavy and medium plate mill is provided, it is convenient to adjust, and can satisfy the requirement of the operation of rolling, the main shaft support when the in good time balance control of realization final drive shaft and work roll changing.
The technical scheme that realizes above-mentioned purpose is: a kind of bascule that is used for the upper and lower main transmission shafts of heavy and medium plate mill, comprise that a bottom is fixed on the gantry frame on the bottom surface in the upper and lower final drive shaft outside, described bascule also comprises two mounting brackets, two installing plates, four chutes, a pair of last balance hydraulic cylinder, a pair of following balance hydraulic cylinder and two axial positioners, wherein
Described gantry frame is formed by connecting by a base and two crossbeams front and back by two identical U-shaped framves of structure with arranging; Described two mounting brackets laterally are connected across on tandem two root posts in gantry frame both sides respectively and are positioned at the below of crossbeam; Described two installing plates are located on the base of gantry frame and lay respectively at the below of mounting bracket; Described four chutes also erectly are fixed on the inboard of tandem two root posts in gantry frame both sides respectively in pairs; The described a pair of balance hydraulic cylinder of going up erectly is installed on the mounting bracket of gantry frame both sides respectively; Described a pair of balance hydraulic cylinder down erectly is installed on the installing plate of gantry frame both sides respectively;
Described two axial positioning device structures are identical, and they comprise the bearing lower cover respectively, are sleeved on the outer slide of bearing lower cover; Described two axial positioners are installed between the chute on gantry frame two heel posts slidably and are supported by last balance hydraulic cylinder and following balance hydraulic cylinder respectively by being sleeved on the outer slide plate of slide respectively.
The bascule of the above-mentioned upper and lower main transmission shafts that is used for heavy and medium plate mill, wherein, described go up balance hydraulic cylinder and following balance hydraulic cylinder respectively with axial direction positioning device on slide hinged.
The bascule of the above-mentioned upper and lower main transmission shafts that is used for heavy and medium plate mill, wherein, described slide plate and chute axially and all leave an effective gap radially.
The bascule of the above-mentioned upper and lower main transmission shafts that is used for heavy and medium plate mill wherein, also is equipped with the bearing upper cover of upper and lower final drive shaft between the column of described gantry frame both sides.
The bascule of the above-mentioned upper and lower main transmission shafts that is used for heavy and medium plate mill, wherein, the top of described gantry frame also is provided with a cover plate.
Owing to adopted the technical scheme of the bascule of the upper and lower main transmission shafts that is used for heavy and medium plate mill of the present invention, the main shaft support when realizing the in good time balance control of final drive shaft and work roll changing.It is under the bigger situation of final drive shaft deadweight, can satisfy the requirement of balance final drive shaft gravity in the operation of rolling, the position that can when roll change, keep main shaft again, and final drive shaft is carried out axial rigidity location, and avoiding under the large impact situation milling train master rotor axis of electric impacted causes damaging.This balance device structure is simple, is convenient to adjust, and is safe and reliable, connection and reasonable arrangement, and characteristics such as cost is low are suitable for the national conditions of China's self design heavy and medium plate mill.
Description of drawings
Fig. 1 is the perspective view of the bascule of the upper and lower main transmission shafts that is used for heavy and medium plate mill of prior art;
Fig. 2 is the perspective view of the bascule of the upper and lower main transmission shafts that is used for heavy and medium plate mill of prior art;
Fig. 3 is the side view of the bascule of the upper and lower main transmission shafts that is used for heavy and medium plate mill of the present invention;
Fig. 4 is the perspective view of the bascule gantry frame of the upper and lower main transmission shafts that is used for heavy and medium plate mill of the present invention;
Fig. 5 is the axial cutaway view of positioner of the bascule of the upper and lower main transmission shafts that is used for heavy and medium plate mill of the present invention.
The specific embodiment
In order to understand technical scheme of the present invention better, below by embodiment particularly and be described in detail in conjunction with the accompanying drawings:
See also Fig. 3 to Fig. 5, the bascule that is used for the upper and lower main transmission shafts of heavy and medium plate mill of the present invention, comprise gantry frame 1, two mounting brackets 2, two installing plates 3, four chutes 4, a pair of balance hydraulic cylinder 5, a pair of balance hydraulic cylinder 6 and the two axial positioners down gone up, wherein
The bottom of gantry frame 1 is fixed on the bottom surface in upper and lower final drive shaft 21,22 outsides, upper and lower final drive shaft 21,22 is supported in its effect on the one hand, its gravity of balance, be mainly used in the axial location locking of upper and lower final drive shaft 21,22 on the other hand, gantry frame 1 is a welding structural element, and it is formed by connecting by a base 12 and two crossbeam 13 front and back by two identical U-shaped framves 11 of structure with arranging; Crossbeam 13 is made of steel plate;
Two mounting brackets 2 laterally are connected across on tandem two root posts 14 in gantry frame 1 both sides respectively and are positioned at the below of crossbeam 13;
Two installing plates 3 are located on the base 12 of gantry frame 1 and lay respectively at the below of mounting bracket 2;
Four chutes 4 also erectly are fixed on the inboard of tandem two root posts 14 in gantry frame 1 both sides respectively in pairs;
The a pair of balance hydraulic cylinder 5 of going up erectly is installed in respectively on the mounting bracket 2 of gantry frame 1 both sides;
A pair of balance hydraulic cylinder 6 down erectly is installed in respectively on the installing plate 3 of gantry frame 1 both sides;
Two axial positioning device structures are identical, and they comprise bearing lower cover 71 respectively and are sleeved on bearing lower cover 71 slide 72 outward;
Two axial positioners are installed between the chute 4 on 1 liang of heel post 14 of gantry frame slidably by being sleeved on the outer slide plates 73 of slide 72 respectively, effectively prevented to connect axial play, two axial positioners are respectively by last balance hydraulic cylinder 5 and 6 supportings of following balance hydraulic cylinder; Slide plate 73 and chute 4 axially between the effective clearance H=5mm that leaves, slide plate 73 and chute 4 radially between the effective clearance L=14mm that leaves, be used for preventing from when final drive shaft takes place by destruction, to damage the armature spindle of main motor
Last balance hydraulic cylinder 5 and following balance hydraulic cylinder 6 respectively with axial direction positioning device on slide 72 hinged, when upper and lower two balance hydraulic cylinders 5,6 move simultaneously, with realize upper and lower final drive shaft 21,22 in the operation of rolling with roll with dynamic balancing.
The bearing upper cover 8 of upper and lower final drive shaft also is installed between the column 14 of gantry frame 1 both sides
The bascule of the upper and lower main transmission shafts that is used for heavy and medium plate mill of the present invention is in the mill milling process, upper and lower final drive shaft 21,22 is supported by axial direction positioning device respectively, the upper and lower final drive shaft 21,22 of upper and lower hydraulic cylinder 5,6 controls in ± 4.5 ° with dynamic balancing, during roll change, gantry frame 1 plays the effect of supporting upper and lower final drive shaft 21,22.The bearing that connects axle uses the dissection type rolling bearing, is convenient to installation and maintenance.Under the bigger situation of upper and lower final drive shaft 21,22 deadweights, this structure can satisfy the requirement of balance final drive shaft gravity in the operation of rolling can keep final drive shaft again when roll change position, and final drive shaft is carried out axial rigidity location, and avoiding under the large impact situation milling train master rotor axis of electric impacted causes damaging.
The bascule that is used for the upper and lower main transmission shafts of heavy and medium plate mill of the present invention is applied in Ji steel 3500 and has played good balanced action, final drive shaft weight is 39.2 tons on the balance, about 34.9 tons of following final drive shaft weight, realized upper and lower main transmission shafts and roll in the operation of rolling with dynamic balancing, played good effect.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.
Claims (4)
1. bascule that is used for the upper and lower main transmission shafts of heavy and medium plate mill, comprise that a bottom is fixed on the gantry frame on the bottom surface in the upper and lower final drive shaft outside, it is characterized in that, described bascule also comprises two mounting brackets, two installing plates, four chutes, a pair of last balance hydraulic cylinder, a pair of following balance hydraulic cylinder and two axial positioners
Described gantry frame is formed by connecting by a base and two crossbeams front and back by two identical U-shaped framves of structure with arranging;
Described two mounting brackets laterally are connected across respectively on tandem two root posts in gantry frame both sides;
Described two installing plates are located on the base of gantry frame and lay respectively at the below of mounting bracket;
Described four chutes also erectly are fixed on the inboard of tandem two root posts in gantry frame both sides respectively in pairs;
The described a pair of balance hydraulic cylinder of going up erectly is installed on the mounting bracket of gantry frame both sides respectively;
Described a pair of balance hydraulic cylinder down erectly is installed on the installing plate of gantry frame both sides respectively;
Described two axial positioning device structures are identical, and they comprise the bearing lower cover respectively and are sleeved on the outer slide of bearing lower cover;
Described two axial positioners are installed between the chute on gantry frame two heel posts slidably and are supported by last balance hydraulic cylinder and following balance hydraulic cylinder respectively by being sleeved on the outer slide plate of slide respectively.
2. the bascule that is used for the upper and lower main transmission shafts of heavy and medium plate mill according to claim 1 is characterized in that, described go up balance hydraulic cylinder and following balance hydraulic cylinder respectively with axial direction positioning device on slide hinged.
3. the bascule that is used for the upper and lower main transmission shafts of heavy and medium plate mill according to claim 1 is characterized in that, the bearing upper cover of upper and lower final drive shaft also is installed between the column of described gantry frame both sides.
4. the bascule that is used for the upper and lower main transmission shafts of heavy and medium plate mill according to claim 1 is characterized in that the top of described gantry frame also is provided with a cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102021825A CN101733288B (en) | 2008-11-04 | 2008-11-04 | Device for balancing upper and lower main transmission shafts of heavy and medium plate mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102021825A CN101733288B (en) | 2008-11-04 | 2008-11-04 | Device for balancing upper and lower main transmission shafts of heavy and medium plate mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101733288A CN101733288A (en) | 2010-06-16 |
| CN101733288B true CN101733288B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102021825A Expired - Fee Related CN101733288B (en) | 2008-11-04 | 2008-11-04 | Device for balancing upper and lower main transmission shafts of heavy and medium plate mill |
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| CN (1) | CN101733288B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814338A (en) * | 2012-09-07 | 2012-12-12 | 无锡市桥联冶金机械有限公司 | Transmission shaft balancing device of rolling machine |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084401B (en) * | 2013-01-25 | 2015-07-01 | 中冶南方工程技术有限公司 | Cross-shaped universal shaft bracket |
| CN104174793B (en) * | 2014-08-08 | 2016-02-03 | 中国重型机械研究院股份公司 | A kind of machine for rolling ring epicone roller and transmission system gravity hydraulic bascule thereof and method |
| CN104889171B (en) * | 2015-06-03 | 2017-01-18 | 辽宁科技大学 | Support roll bilateral direct transmission gear of four-roll plate and strip rolling mill |
| CN111318574A (en) * | 2020-02-27 | 2020-06-23 | 包头钢铁（集团）有限责任公司 | Real-time online fault monitoring and protecting device for main transmission shaft assembly of wide and thick plate rolling mill |
| CN111282999A (en) * | 2020-02-27 | 2020-06-16 | 包头钢铁（集团）有限责任公司 | Wide and thick plate rolling mill main transmission shaft balancing device with fault monitoring and protecting functions |
Citations (6)
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| EP1087849A1 (en) * | 1998-06-17 | 2001-04-04 | SMS DEMAG INNSE S.p.A. | Roll bending device for rolling stands |
| WO2002002254A1 (en) * | 2000-06-30 | 2002-01-10 | Sms Demag Aktiengesellschaft | Roll stand, especially a duo or quarto roll stand, comprising bending and balancing devices for axially displaceable rollers |
| CN2663042Y (en) * | 2003-11-18 | 2004-12-15 | 宝钢集团上海浦东钢铁有限公司 | Hydraulic vernier device for changing roll of cogging mill universal shaft |
| RU2005134485A (en) * | 2005-11-07 | 2007-05-20 | Открытое акционерное общество "Электростальский завод т желого машиностроени " (RU) | WORK CART OF THE ROLLING MILL |
| CN201046459Y (en) * | 2007-06-15 | 2008-04-16 | 中国第一重型机械集团公司 | Balancing hydraulic cylinder for supporting worker rollers of rolling mill |
| CN101288879A (en) * | 2008-06-03 | 2008-10-22 | 中冶京诚工程技术有限公司 | Combination type pressing-down balancing device and its control method |
-
2008
- 2008-11-04 CN CN2008102021825A patent/CN101733288B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1087849A1 (en) * | 1998-06-17 | 2001-04-04 | SMS DEMAG INNSE S.p.A. | Roll bending device for rolling stands |
| WO2002002254A1 (en) * | 2000-06-30 | 2002-01-10 | Sms Demag Aktiengesellschaft | Roll stand, especially a duo or quarto roll stand, comprising bending and balancing devices for axially displaceable rollers |
| CN2663042Y (en) * | 2003-11-18 | 2004-12-15 | 宝钢集团上海浦东钢铁有限公司 | Hydraulic vernier device for changing roll of cogging mill universal shaft |
| RU2005134485A (en) * | 2005-11-07 | 2007-05-20 | Открытое акционерное общество "Электростальский завод т желого машиностроени " (RU) | WORK CART OF THE ROLLING MILL |
| CN201046459Y (en) * | 2007-06-15 | 2008-04-16 | 中国第一重型机械集团公司 | Balancing hydraulic cylinder for supporting worker rollers of rolling mill |
| CN101288879A (en) * | 2008-06-03 | 2008-10-22 | 中冶京诚工程技术有限公司 | Combination type pressing-down balancing device and its control method |
Non-Patent Citations (1)
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| 张久军.一例轧钢机接轴液压平衡装置控制系统的改进.《液压与气动》.2008,(第06期), * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814338A (en) * | 2012-09-07 | 2012-12-12 | 无锡市桥联冶金机械有限公司 | Transmission shaft balancing device of rolling machine |
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| CN101733288A (en) | 2010-06-16 |
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