CN204638722U - A kind of arrangement of 12 roller stainless steel cold rolling mill final drive shafts - Google Patents
A kind of arrangement of 12 roller stainless steel cold rolling mill final drive shafts Download PDFInfo
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- CN204638722U CN204638722U CN201520083152.2U CN201520083152U CN204638722U CN 204638722 U CN204638722 U CN 204638722U CN 201520083152 U CN201520083152 U CN 201520083152U CN 204638722 U CN204638722 U CN 204638722U
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- final drive
- drive shaft
- rod
- cross
- cross bag
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Abstract
The utility model discloses a kind of arrangement of 12 roller stainless steel cold rolling mill final drive shafts, comprise balanced four final drive shafts arranged that are square, be followed successively by the first final drive shaft, second final drive shaft adjacent with this first final drive shaft, three turning cylinder positioned opposite with the first final drive shaft and four final drive shaft positioned opposite with the second final drive shaft, one end of every root final drive shaft is connected with the output shaft of milling train reduction box by a cross bag, the other end is connected with the rod of milling train by a cross bag, it is characterized in that: described four main rotary shafts stagger mutually for the cross bag be connected with rod, cross bag for being connected with rod on every root final drive shaft has enough accommodation spaces and avoids interfering with the cross bag that other final drive shaft is connected for rod.
Description
Technical field
The utility model relates to a kind of arrangement of 12 roller stainless steel cold rolling mill final drive shafts.
Background technology
The main transmission shaft device of existing 12 roller stainless steel cold rolling mills comprises four final drive shafts, as shown in Figure 1, 2, arrangement adopts each 2 balanced layouts up and down, the physical dimension of every root final drive shaft 3 ' is just the same, each root final drive shaft ' there are the parts compositions such as grand cross bag 4 ', little cross bag 5 ', jaw, axle body respectively.One end of every root final drive shaft 3 ' is connected with the output shaft 1 ' of milling train reduction box 2 ' by a grand cross bag 4 ', the other end is connected with the rod of milling train by little cross bag 5 ', due to the restriction by space, the little cross bag 5 ' of final drive shaft 3 ' near roller side adopts non-standard component design, simultaneously, on four main rotary shafts 3 ' for the little cross bag 5 ' that is connected with rod in same horizontal space, therefore appearance and size is relatively little, intensity is low, therefore, the most weak part that little cross bag 5 ' place becomes whole final drive shaft 3 ' is housed, frequent appearance is because of the damage of components of this little cross bag 5 ', affect the time between overhauls(TBO) of whole milling train, the generation of each major accident all damages because this site portion strength of parts is not enough and causes, serious even when producing, there is fracture, there is serious accident and substantial equipment stopping accident.
In addition, precious new company twelve high mill is the reversible stainless steel milling train introduced from Mitsubishi heavy industry company, adopts monoblock type memorial archway, and inner space is large, and roll gap opening degree is large, and final drive shaft 3 ' adopts the connected mode of above-mentioned cross bag.This milling train full production is after several years, due in design, occurs repeatedly that little cross bag 5 ' ruptured concurrent raw Fire accident.Be cost-saving afterwards, therefore adopt final drive shaft 3 ' production domesticization spare part, but result in operation conditions more unstable, security incident and disorderly closedown Frequent Accidents, the production capacity seriously constraining this milling train plays and production safety.
To sum up, due to roller system of rolling mill design reasons, final drive shaft 3 ' arrangement space is restricted, and the little cross bag 5 ' of final drive shaft 3 ' adopts non-standard component, so require high especially to its raw material, processing and manufacturing etc.But, the spare part of domestic final drive shaft 3 ' manufactures by former power transmission shaft size, cause final drive shaft 3 ' bearing capacity lower, service life is short, the problems such as application risk is large, meanwhile, import final drive shaft 3 ' price is the several times of domestic axle, and imported product also needs often to change associated components, use cost is high.
Utility model content
The technical problems to be solved in the utility model is the present situation for prior art, a kind of arrangement of 12 roller stainless steel cold rolling mill final drive shafts is provided, guarantee in limited space, make the stable operation of final drive shaft energy, improve final drive shaft bulk strength, extend the service life of final drive shaft, also greatly reduce cost of equipment maintenance, improve unit overall efficiency, improve production capacity, and the probability that the serious accidents such as milling train fire occur because final drive shaft lost efficacy can also be reduced.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of arrangement of 12 roller stainless steel cold rolling mill final drive shafts, comprise balanced four final drive shafts arranged that are square, be followed successively by the first final drive shaft, second final drive shaft adjacent with this first final drive shaft, three turning cylinder positioned opposite with the first final drive shaft and four final drive shaft positioned opposite with the second final drive shaft, one end of every root final drive shaft is connected with the output shaft of milling train reduction box by a cross bag, the other end is connected with the rod of milling train by a cross bag, it is characterized in that: described four main rotary shafts stagger mutually for the cross bag be connected with rod, cross bag for being connected with rod on every root final drive shaft has enough accommodation spaces and avoids interfering with the cross bag that other final drive shaft is connected for rod.
As improvement, described first final drive shaft wraps in on the 3rd final drive shaft in the same horizontal space of rod for the cross be connected with rod; Described second final drive shaft wraps in the same horizontal space away from rod for the cross be connected with rod with on the 4th final drive shaft.
Improve again, on described four final drive shafts for the cross bag that is connected with rod and with for belonging to identical size specification with the cross bag that the output shaft of milling train reduction box is connected.
Improve again, below described final drive shaft, be provided with movable bracket.
Improve, cross axle drawn together by described cross handbag again, and this cross axle has four spindle noses, each spindle nose is provided with oil storage hole, and each spindle nose is set with bearing block, between this bearing block and spindle nose, be provided with needle roller.
Improve again, between described adjacent spindle nose, adopt arc surface transition.
Improve again, described spindle nose is connected with jaw.
Compared with prior art, owing to the utility model has the advantage of: existing little cross bag is staggeredly arranged by the utility model, thus reserve enough spaces for original little cross bag, increase the specification of original little cross bag, and the appearance and size of cross bag increases as far as possible when not interfering adjacent main power transmission shaft, thus make in the utility model four main rotary shafts are brought up to maximum for the cross bag intensity be connected with rod, greatly improve the service life of final drive shaft, thus milling train production efficiency can be improved, also the generation of the serious accidents such as this milling train firing accident can be reduced, make unit safety, Effec-tive Function.
Accompanying drawing explanation
Fig. 1 is existing final drive shaft arrangement schematic diagram;
Fig. 2 is the structural representation of original little cross bag in Fig. 1;
Fig. 3 is the utility model final drive shaft arrangement schematic diagram;
Fig. 4 is the structural representation of cross bag for being connected with rod in Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As Fig. 3, shown in 4, the arrangement of 12 roller stainless steel cold rolling mill final drive shafts in the utility model embodiment, comprise balanced four final drive shafts arranged that are square, be followed successively by the first final drive shaft 31, second final drive shaft 32 adjacent with this first final drive shaft 31, three turning cylinder positioned opposite with the first final drive shaft 31 and four final drive shaft positioned opposite with the second final drive shaft 32, one end of every root final drive shaft is connected with the output shaft 1 of milling train reduction box 2 by a cross bag, the other end is connected with the rod of milling train by a cross bag, cross bag 5 for being connected with rod on four main rotary shafts staggers mutually, cross bag 5 for being connected with rod on every root final drive shaft has enough accommodation spaces and does not interfere with the cross bag 5 that other final drive shaft is connected for rod.
Further, the first final drive shaft 31 with on the 3rd final drive shaft for the cross bag 5 that is connected with rod in the same horizontal space near rod; Described second final drive shaft 32 with on the 4th final drive shaft for the cross bag 5 that is connected with rod away from the same horizontal space of rod.On four final drive shafts for the cross bag 5 that is connected with rod and with for belonging to identical size specification with the cross bag 4 that the output shaft of milling train reduction box is connected.
In addition, movable bracket is provided with below final drive shaft.After original little cross bag larger, at rolling position, can interfere with each other with former bracket, therefore the bracket of interfering is cut off and makes a new movable bracket according to particular location and size, this movable bracket can be regained by off-line when rolling, prevents from interfering with each other with final drive shaft, when roll change, movable bracket stretches out holds final drive shaft, prevents final drive shaft cross bag position sagging and cannot roll change.
In addition, the cross bag 5 that the utility model is used for rod connected comprises cross axle 51, and this cross axle 51 has four spindle noses 52, each spindle nose 52 is provided with oil storage hole 55, and each spindle nose 51 is set with bearing block 53, between this bearing block 53 and spindle nose 51, be provided with needle roller 54; Arc surface transition is adopted between adjacent spindle nose 51; Spindle nose 51 is connected with jaw.
Because the appearance and size of original little cross bag 5 ' is little; intensity is low, often occurs the damage of components because of this little cross bag 5 ', affects the time between overhauls(TBO) of whole milling train; even there is fracture when producing in serious, serious accident and substantial equipment stopping accident occur.
For this reason, the little cross bag 5 ' size of the utility model to the homalocephalus side of four final drive shafts is improved, and specifically comprises:
1, its monnolithic case size is increased, namely ф 250mm is increased to from original ф 210mm, make its monnolithic case size identical with the cross bag of the final drive shaft other end, namely the bulk strength at this position is substantially increased, the interchangeability of final drive shaft two ends cross bag can be realized again, reduce the storage level of cross bag spare part, save spare part expense.
2, corresponding increase is done to cross axle 51 size, reduce the oil storage hole 55 of cross axle 51 inside, this oil storage hole 55 is decreased to ф 10mm by original ф 16mm, and also does corresponding increase to the needle roller 54 that it matches and bearing liner size, thus improves the intensity of cross axle 51.
3, cross axle 51 structure is improved, from original water caltrop transition between adjacent spindle nose 52, change into arc surface transition into, and part chamfer site is increased to maximum, eliminate its stress concentration point to greatest extent, thus greatly improve the intensity of cross axle.
4, increase cross bag and saddle and gland size are installed, make the size conforms at this position assemble the requirement of new cross bag, thus improve the intensity that cross bag installs saddle and gland.
5, the set bolt size of cross bag is increased, from original M16, M18 is increased to cross bag fixed bolt hole and Bolt sizes, thus the thrust substantially increased cross bag, reduce and cross bag occurs because of this position bolt looseness throw off and the probability that causes the severe safety accidents such as milling train firing accident.
6, final drive shaft jaw structure is improved, strengthen jaw gauge, and the position that clearly demarcated and stress is concentrated to water caltrop is with changing arc surface transition into, and part chamfer site is increased to maximum, eliminate its stress concentration point to greatest extent, thus improve the intensity of final drive shaft jaw.
Existing little cross bag is staggeredly arranged by the utility model, thus reserve enough spaces for original little cross bag 5 ', increase the specification of original little cross bag 5 ', and the appearance and size of cross bag increases as far as possible when not interfering adjacent main power transmission shaft, thus make in the utility model four main rotary shafts are brought up to maximum for cross bag 5 intensity be connected with rod, greatly improve the service life of final drive shaft, thus milling train production efficiency can be improved, also the generation of the serious accidents such as this milling train firing accident can be reduced, make unit safety, Effec-tive Function.
Compared with prior art, the utility model has the following advantages:
1, final drive shaft arrangement is novel, and structure is simple, easy for installation;
2, increase substantially the service life of final drive shaft, promote the production capacity of milling train unit;
3, the occurrence probability that the serious accidents such as fire occur because final drive shaft cross bag lost efficacy is greatly reduced;
4, improve the interchangeability of cross bag, greatly reduce the spare part maintenance cost of final drive shaft;
5, greatly reduce because final drive shaft cross bag ruptures and occur the time that rolling mill fault is shut down.
Claims (7)
1. the arrangement of a roller stainless steel cold rolling mill final drive shaft, comprise balanced four final drive shafts arranged that are square, be followed successively by the first final drive shaft, second final drive shaft adjacent with this first final drive shaft, three turning cylinder positioned opposite with the first final drive shaft and four final drive shaft positioned opposite with the second final drive shaft, one end of every root final drive shaft is connected with the output shaft of milling train reduction box by a cross bag, the other end is connected with the rod of milling train by a cross bag, it is characterized in that: described four main rotary shafts stagger mutually for the cross bag be connected with rod, cross bag for being connected with rod on every root final drive shaft has enough accommodation spaces and avoids interfering with the cross bag that other final drive shaft is connected for rod.
2. the arrangement of 12 roller stainless steel cold rolling mill final drive shafts according to claim 1, is characterized in that: described first final drive shaft wraps in on the 3rd final drive shaft in the same horizontal space of rod for the cross be connected with rod; Described second final drive shaft wraps in the same horizontal space away from rod for the cross be connected with rod with on the 4th final drive shaft.
3. the arrangement of 12 roller stainless steel cold rolling mill final drive shafts according to claim 1, is characterized in that: on described four final drive shafts for the cross bag that is connected with rod and with for belonging to identical size specification with the cross bag that the output shaft of milling train reduction box is connected.
4. the arrangement of 12 roller stainless steel cold rolling mill final drive shafts according to claim 1, is characterized in that: be provided with movable bracket below described final drive shaft.
5. the arrangement of 12 roller stainless steel cold rolling mill final drive shafts according to any one of Claims 1-4, it is characterized in that: cross axle drawn together by described cross handbag, this cross axle have four spindle noses, each spindle nose is provided with oil storage hole, and each spindle nose is set with bearing block, between this bearing block and spindle nose, be provided with needle roller.
6. the arrangement of 12 roller stainless steel cold rolling mill final drive shafts according to claim 5, is characterized in that: adopt arc surface transition between described adjacent spindle nose.
7. the arrangement of 12 roller stainless steel cold rolling mill final drive shafts according to claim 5, is characterized in that: described spindle nose is connected with jaw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520083152.2U CN204638722U (en) | 2015-02-05 | 2015-02-05 | A kind of arrangement of 12 roller stainless steel cold rolling mill final drive shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520083152.2U CN204638722U (en) | 2015-02-05 | 2015-02-05 | A kind of arrangement of 12 roller stainless steel cold rolling mill final drive shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204638722U true CN204638722U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520083152.2U Expired - Fee Related CN204638722U (en) | 2015-02-05 | 2015-02-05 | A kind of arrangement of 12 roller stainless steel cold rolling mill final drive shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204638722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694563A (en) * | 2017-01-09 | 2017-05-24 | 山东钢铁集团日照有限公司 | Novel compound rolling mill universal spindle |
-
2015
- 2015-02-05 CN CN201520083152.2U patent/CN204638722U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694563A (en) * | 2017-01-09 | 2017-05-24 | 山东钢铁集团日照有限公司 | Novel compound rolling mill universal spindle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20220205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |