CN201172062Y - Multimachine bi-roller reducing mill - Google Patents
Multimachine bi-roller reducing mill Download PDFInfo
- Publication number
- CN201172062Y CN201172062Y CNU2008200770054U CN200820077005U CN201172062Y CN 201172062 Y CN201172062 Y CN 201172062Y CN U2008200770054 U CNU2008200770054 U CN U2008200770054U CN 200820077005 U CN200820077005 U CN 200820077005U CN 201172062 Y CN201172062 Y CN 201172062Y
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- China
- Prior art keywords
- memorial archway
- entablature
- lower bottom
- bottom base
- seamless steel
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Abstract
The utility model belongs to seamless steel tube hot rolling equipment which relates to a multiplestand two-roll reducing mill solving the problems that the existing equipment has bad rigidity of the whole stand when the equipment is used for processing seamless steel tubes with heavy calibers and thick walls, if tubes with larger diameters and thick walls are to be rolled, the modulus and the size of a bevel gear are required to be designed to be very large to cause that the volume of the reducing mill is very large and is hard to realize as well as is uneconomical. The seamless steel tube hot rolling equipment includes a main driving part (1), a horizontal driving device (2), a vertical driving device (3), a main base frame (4) and an auxiliary machine (5); the main base frame (4) comprises an upper beam (6), a lateral memorial arch (7), a lower base (8), a left memorial arch (9) and a right memorial arch (10), all of which are connected together by pretightening force pull rods; the reversing bevel gear (14) is arranged between the main driving part (1) and a one-grade reduction gearing (15). The seamless steel tube hot rolling equipment is especially suitable for rolling the seamless steel tubes with heavy calibers and thick walls.
Description
Technical field:
The present invention relates to a kind of seamless steel pipe rolling production equipment, particularly a kind of multi-stand two-roller reducing mill, what be used for hot rolled seamless steel tube decides tube reducing production.
Background technology:
At present, in smelter seamless steel pipe rolling production equipment, size-reducing mill is one of crucial finishing equipment of seamless steel pipe rolling production.Steel pipe need finally be rolled into the seamless steel pipe finished product through size-reducing mill with tube reducing, rounding and sizing after the hot rolling.The frame that is used for two roller reducing mills of rolling thick-walled seamless steel pipes unit in the prior art is to adopt C type unit frame, in the structure of reducing mill vertical drive, bevel gear is placed on the afterbody transmission, and the weight of power transmission shaft mainly supports by the barreled tooth flank of roll stand.But processing to heavy caliber thick wall seamless steel tube, the shortcoming that has whole rigidity of frame difference, simultaneously because bevel gear of the prior art is arranged on the transmission position of afterbody, if want rolling large diameter thick arm pipe just to require the modulus of bevel gear and size design very big, very huge of the volume that makes reducing mill, promptly be difficult to realize, very uneconomical again.Also exist the power transmission shaft shake of vertical transmission to make the bad technical problem of vertical drive shaft carry-over moment effect in the prior art.
Summary of the invention:
The invention solves existing equipment exists whole rigidity of frame poor to adding of heavy caliber thick wall seamless steel tube man-hour, simultaneously because bevel gear of the prior art is arranged on the transmission position of afterbody, if want rolling large diameter thick-walled pipe just to require the modulus of bevel gear and size design very big, very huge of the volume that makes reducing mill, promptly be difficult to realize, very uneconomical again, and the bad technical problem of vertical drive shaft carry-over moment effect.The multi-stand two-roller reducing mill compact conformation that provides, easy to maintenance.
The present invention is achieved by the following technical programs:
Multi-stand two-roller reducing mill comprises main transmission section 1, horizontal transmission device 2, vertical drive 3, main engine bed 4 and subsidiary engine 5; Described vertical drive 3 is made up of commutation bevel gear 14, one-level deceleration device 15, double reduction gear 16 and power transmission shaft lifting device 17; Described main engine bed 4 is made up of entablature 6, side memorial archway 7, lower bottom base 8, left memorial archway 9 and right memorial archway 10, left side memorial archway 9, right memorial archway 10 and side memorial archway 7 are arranged between entablature 6 and the lower bottom base 8, make main engine bed 4 be frame-combined structure, all link together between left memorial archway 9 and entablature 6 and lower bottom base 8, right memorial archway 10 and entablature 6 and lower bottom base 8, side memorial archway 7 and entablature 6 and the lower bottom base 8 by the pretightning force pull bar; Described commutation bevel gear 14 is arranged between main transmission section 1 and the one-level deceleration device 15.
Described pretightning force pull bar all can be provided with axle sleeve outward, is used for locating when entablature 6, lower bottom base 8, left memorial archway 9 and right memorial archway 10 connect into integral body; Entablature 6, lower bottom base 8 can be provided with a location mouth with side memorial archway 7 junctions.
The shank of the power transmission shaft 19 that the hydraulic cylinder 18 of described power transmission shaft lifting device 17 is connected can be provided with ball pad 20 and taper supports 21.
The invention has the beneficial effects as follows that tower structure has solved especially big piece and processed the problem that can't guarantee equipment precision and whole rigidity of frame difference, be convenient to maintenance, repair.The commutation bevel gear is set to the high speed low torque end, has solved bevel gear and has born high pulling torque, a very uneconomic difficult problem.
Description of drawings:
Fig. 1 is a kind of overall schematic of multimachine frame seamless steel tube reducing machine.
Fig. 2 is the side view of reducing mill main engine bed.
Fig. 3 is the rearview of reducing mill main engine bed.
Fig. 4 is the vertical drive cutaway view.
Fig. 5 is power transmission shaft lifting device figure.
The specific embodiment:
Below in conjunction with the description of drawings specific embodiment:
The multi-stand two-roller size-reducing mill is made up of main transmission section 1, horizontal transmission device 2, vertical drive 3, main engine bed 4 and subsidiary engine 5.Main engine bed 4 adopts frame-combined pretightning force pull bar syndeton, is made up of entablature 6, side memorial archway 7, lower bottom base 8, left memorial archway 9 and right memorial archway 10.Entablature 6, lower bottom base 8, left memorial archway 9 and right memorial archway 10 parts connect into integral body by pull bar A11, by axle sleeve 13 location; Mouthful location that entablature 6, lower bottom base 8 and 7 employings of side memorial archway itself carry connects into integral body by pull bar B12; Entablature 6 is supported by left memorial archway 9, right memorial archway 10 and side memorial archway 7, by a mouth and axle sleeve 13 location, forms redundant structure.Vertical drive 3 mainly is made up of commutation bevel gear 14, one-level deceleration 15, double reduction 16 and power transmission shaft lifting device 17.Commutation bevel gear 14 directly links to each other with main transmission section, through one-level deceleration 15 and double reduction 16, transmits torque to power transmission shaft 19 after the commutation.Power transmission shaft lifting device 17 mainly supports 21 by hydraulic cylinder 18, power transmission shaft 19, ball pad 20 and taper and forms.Ball ring 20 is contained on the power transmission shaft 19; Hydraulic cylinder 18 promotes power transmission shaft throws off engagement up and down or enters engagement, and when engagement, ball pad 20 supports 21 by taper and supports, and ball pad can compensate the skew of power transmission shaft and the weight of supporting shaft.
Claims (3)
1, a kind of multi-stand two-roller reducing mill comprises main transmission section (1), horizontal transmission device (2), vertical drive (3), main engine bed (4) and subsidiary engine (5); Described vertical drive (3) is made up of commutation bevel gear (14), one-level deceleration device (15), double reduction gear (16) and power transmission shaft lifting device (17); It is characterized in that: described main engine bed (4) is made up of entablature (6), side memorial archway (7), lower bottom base (8), left memorial archway (9) and right memorial archway (10), left side memorial archway (9), right memorial archway (10) and side memorial archway (7) are arranged between entablature (6) and the lower bottom base (8), make main engine bed (4) be frame-combined structure, all link together between left memorial archway (9) and entablature (6) and lower bottom base (8), right memorial archway (10) and entablature (6) and lower bottom base (8), side memorial archway (7) and entablature (6) and the lower bottom base (8) by the pretightning force pull bar; Described commutation bevel gear (14) is arranged between main transmission section (1) and the one-level deceleration device (15).
2, a kind of multi-stand two-roller reducing mill according to claim 1 is characterized in that: described pretightning force pull bar is provided with axle sleeve outward, is used for entablature (6), lower bottom base (8), left memorial archway (9) and right memorial archway (10) and locatees when connecting into integral body; Entablature (6), lower bottom base (8) are provided with a location mouth with side memorial archway (7) junction.
3, multi-stand two-roller reducing mill according to claim 1 and 2 is characterized in that: the shank of the power transmission shaft (19) that the hydraulic cylinder (18) of described power transmission shaft lifting device (17) is connected is provided with ball pad (20) and (21) are supported in taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200770054U CN201172062Y (en) | 2008-04-16 | 2008-04-16 | Multimachine bi-roller reducing mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200770054U CN201172062Y (en) | 2008-04-16 | 2008-04-16 | Multimachine bi-roller reducing mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201172062Y true CN201172062Y (en) | 2008-12-31 |
Family
ID=40199172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200770054U Expired - Lifetime CN201172062Y (en) | 2008-04-16 | 2008-04-16 | Multimachine bi-roller reducing mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201172062Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101259486B (en) * | 2008-04-16 | 2010-06-23 | 太原市通泽成套设备有限公司 | Multi-stand two-roller reducing mill |
-
2008
- 2008-04-16 CN CNU2008200770054U patent/CN201172062Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101259486B (en) * | 2008-04-16 | 2010-06-23 | 太原市通泽成套设备有限公司 | Multi-stand two-roller reducing mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081231 Effective date of abandoning: 20080416 |