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1. 发明专利

JPS57195918A BEARING FOR NECK OF ROLL 失效
公开(公告)号：JPS57195918A
公开(公告)日：1982-12-01
申请号：JP8096681
申请日：1981-05-29
申请人： HITACHI LTD
发明人： TOMIOKA SHIYUNZOU , AIZAWA KOUJI , HARAGUCHI KAZUNARI
IPC分类号： B21B31/07 , F16C13/00 , F16C13/02 , F16C33/00 , F16C33/10
摘要： PURPOSE:To improve the lubrication of a bearing metal, by effecting cooling on the bearing surface at its unloaded point and effecting lubrication on the surface at its loaded point. CONSTITUTION:Partition walls 43, 48 are protruded in almost the central sections of a pair of lubricating grooves 25, 26 provided on the inside circumferential surface of a bearing metal 2A so that the grooves are divided into small grooves 41, 44, 46, 49. The small grooves 44, 49 located ahead as to the direction of rotation function as oil supply grooves. The other small grooves 41, 46 located behind as to the direction of rotation function as oil drain grooves. The pair of grooves 41, 49 and the other pair of grooves 44, 46 are located between the partition walls 43, 48 so that the oil supply groove 44 and the oil drain groove 46 are connected to each other through the clearance on the bearing surface at its loaded point to perform lubrication and the oil supply groove 49 and the oil drain groove 41 are connected to each other through the clearance on the bearing surface at its unloaded point to perform cooling.

2. 发明专利

JPS5250932A METHOD OF COLLING MOLTEN STEEL IN MOULD OF CONTINUOUS CASTING 失效
公开(公告)号：JPS5250932A
公开(公告)日：1977-04-23
申请号：JP12638475
申请日：1975-10-22
申请人： HITACHI LTD
发明人： HARAGUCHI KAZUNARI
IPC分类号： B22D35/06 , B22D11/10 , B22D11/11 , B22D11/112 , B22D11/116

3. 发明专利

JPS5483661A UNIVERSAL MILL 失效
公开(公告)号：JPS5483661A
公开(公告)日：1979-07-03
申请号：JP15044077
申请日：1977-12-16
申请人： HITACHI LTD
发明人： HARAGUCHI KAZUNARI , SEKIYA TERUO
IPC分类号： B21B31/08 , B21B31/02
摘要： PURPOSE:To shorten the time necessary for rearrangement of the rolls on purpose to improve the producibility, by providing the lower horizontal-roll-chock with the spacer for holding the vertical-roll-chock, on purpose to draw out simultaneously the upper and lower horizontal-roll-chocks and the vertical-roll-chock. CONSTITUTION:At rearrangement of the rolls, the rail 16 is lifted, and the lower horizontal-roll-chock-autospacer 14 is lifted through the wheel 15 and is stopped at the required position by the hole 10 of the vertical-roll-chock 7. Hereupon, the vertical-roll-chock-autospacer 12 is lifted up and is inserted into the hole of the upper horizontal-roll-chock 17 so as to fit and stop. Under this condition, the upper horizontal-roll-chock 6, the vertical-roll-chock 7, and the lower horizontal-roll-chock 8 are overlapped through the vertical-roll-chock-autospacer 12 and the lower horizontal-roll-chock-autospacer 18. Next, these are drawn out of the housing by the rearranging hook installed in the tip of the rearranging cylinder, and then, the rearrangement of rolls is performed.

4. 发明专利

JPS5467547A APPARATUS FOR ROLL REARRANGEMENT IN ROLLING MILL 失效
公开(公告)号：JPS5467547A
公开(公告)日：1979-05-31
申请号：JP13345177
申请日：1977-11-09
申请人： HITACHI LTD
发明人： HARAGUCHI KAZUNARI
IPC分类号： B21B31/02 , B21B31/10
摘要： PURPOSE:Speedy roll rearrangement is facilitated by aligning a rearrange-truck and an extract truck, so that both trucks move along a rolling line, whereby the extract-truck operates to pull out a roll-carrying housing and to put it in the rearrange-truck. CONSTITUTION:For rearranging rolls, a rearrange-truck 6 and an extract-truck 8 are aligned in a given rolling stand. Then, a cylinder 7 mounted on the extract-truck 8 is operated to pull out an operation-side housing 2 from a solid-line position to the rearrange-truck 6 located at a two-point-dotted-line position. Next, the operation-side housing 2 is moved together with the rearrange-truck 6, then rolls 4 can be easily pulled out and centering of roll can be made easily from the operator side.

5. 发明专利

JPS5257025A METHOD AND APPARATUS FOR COOLING CAST PIECE IN CONTINUOUS CASTING 失效
公开(公告)号：JPS5257025A
公开(公告)日：1977-05-11
申请号：JP13292875
申请日：1975-11-07
申请人： HITACHI LTD
发明人： HARAGUCHI KAZUNARI , KIMURA TOMOAKI
IPC分类号： B22D11/124 , C21D1/00

6. 发明专利

JPS638844B2 失效
公开(公告)号：JPS638844B2
公开(公告)日：1988-02-24
申请号：JP7663581
申请日：1981-05-22
申请人： HITACHI LTD
发明人： HARAGUCHI KAZUNARI , SEKYA TERUO
IPC分类号： B21B13/14 , B21B31/18

7. 发明专利

JPS5683658A ROLL NECK 失效
公开(公告)号：JPS5683658A
公开(公告)日：1981-07-08
申请号：JP16040079
申请日：1979-12-12
申请人： HITACHI LTD
发明人： HARAGUCHI KAZUNARI
IPC分类号： B21B31/07 , F16J15/16
摘要： PURPOSE:To prevent the reduction of a fatigue strength due to rusting by a method wherein a groove is provided on the end face of a seal ring contacting with the vertical end face of the cylinder of the roll at the neck part of the rolling roll and a rubber ring is mounted therein. CONSTITUTION:The seal ring 1 is fitted to a cylindrical surface 8 formed in the groove 9 provided on the end face 6' of the roll and concentric with the axial line of the roll by shrinkage fitting. A groove for the rubber ring is provided on the vertical end face of the seal ring 1 at the roll cylinder side and the rubber ring is mounted to seal the clearnace between the roll side end face and the side end of the seal ring. According to this method, invasion of cooling water to the shrinkage- fitted cylindrical surface 8 and the rounded corner part 10 thereby preventing the rusting of the cylindrical surface 8 and the rounded corner part 10.

8. 发明专利

JPS5439354A ROLL REARRANGEMENT FOR ELECTRICALLY SEAMED PIPE PRODUCTION FACILITY 失效
公开(公告)号：JPS5439354A
公开(公告)日：1979-03-26
申请号：JP10586677
申请日：1977-09-05
申请人： HITACHI LTD
发明人： HARAGUCHI KAZUNARI
IPC分类号： B21C37/08 , B21D5/12
摘要： PURPOSE:To reduce the rearrangement time of rolls through replacement of the entire common base in rearrnging of rolls with respective stand groups mounted on the transferable common base.

9. 发明专利

JPS5252823A HIGH SPEED COOLING MOLD 失效
公开(公告)号：JPS5252823A
公开(公告)日：1977-04-28
申请号：JP12839375
申请日：1975-10-27
申请人： HITACHI LTD
发明人： HARAGUCHI KAZUNARI
IPC分类号： B22D11/04 , B22D11/055

10. 发明专利

JPS58138507A ROLL CHANGER OF ROLLING MILL 失效
公开(公告)号：JPS58138507A
公开(公告)日：1983-08-17
申请号：JP1960882
申请日：1982-02-12
申请人： HITACHI LTD
发明人： HARAGUCHI KAZUNARI , FUJINO NOBUHIRO , SUZUKI TAKASHI
IPC分类号： B21B31/08 , B21B31/10
摘要： PURPOSE:To enable the changing of roll assemblies in the stage of passing a material to be rolled between upper and lower work rolls by providing a spacer between the upper and lower work roll chocks of a rolling mill and providing a roll holder between the driving side roll chocks. CONSTITUTION:A material 19 is rolled with a rolling stand provided with upper, lower work rolls 6, 7 having operation side roll chocks 8, 9 and driving side roll chocks 10, 11 and the worn work roll assemblies are exchanged. A spacer 15 is installed between the operation side roll chocks of the rolls 6, 7 to maintain a prescribed space, and a spacer 17 is provided between the driving side roll chocks as well. Further, a roll holder 21 for supporting the driving side chock 7 is provided. Assemblies of fresh upper, lower work rolls 6A, 7A are exchanged and changed easily while the material to be rolled is passed between upper and lower work rolls.

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