CN104959386A - Rolling mill, compound gear box and power transmission mechanism - Google Patents
Rolling mill, compound gear box and power transmission mechanism Download PDFInfo
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- CN104959386A CN104959386A CN201510398596.XA CN201510398596A CN104959386A CN 104959386 A CN104959386 A CN 104959386A CN 201510398596 A CN201510398596 A CN 201510398596A CN 104959386 A CN104959386 A CN 104959386A
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Abstract
The invention discloses a power transmission mechanism of a compound gear box of a rolling mill. The power transmission mechanism comprises a first input shaft, a first big reduction gear, a first output shaft and a second output shaft. The first input shaft is provided with a first small reduction gear used for being meshed with the first big reduction gear. The first output shaft is sleeved with the first big reduction gear. The second output shaft is parallel to the first output shaft, and the first output shaft and the second output shaft are transmitted through gear pairs which are arranged on respective outer walls and meshed with each other. The line of the center of the first input shaft and the center of the first big reduction gear and the line of the center of the first output shaft and the center of the second output shaft form an angle alpha, and the range of the angle alpha is larger than zero degree and smaller than 90 degrees. Due to the fact that the angle alpha is an acute angle, an input level is inclined relative to a distribution level, on the basis that power is transmitted normally, the space in the compound gear box is utilized reasonably, the space utilization rate in the compound gear box is improved, the overall weight of the compound gear box is lightened, and raw materials and cost are saved.
Description
Technical field
The present invention relates to metallurgical and mechanical technology technical field, particularly a kind of power transmission mechanism.The invention still further relates to a kind of composite teeth roller box comprising above-mentioned power transmission mechanism, and a kind of milling train comprising above-mentioned composite teeth roller box.
Background technology
Along with the development of Chinese mechanical industry, plant equipment miscellaneous has been widely applied in all types of industries production.
For metallurgy industry, in daily production process, usually need the raw material such as steel billet, aluminium base to be rolled into difform section bar, to meet different types of Production requirement.Usually larger moment is needed in the operation of rolling, therefore higher to the performance requirement of milling train.Widely used in factory is milling train, for making milling train, there is higher output torque, often need on the power transmission mechanism of milling train, arrange front end deceleration composite teeth roller box, power input retarding stage is increased by the theory of mechanics of " deceleration increasing is turned round " roll torque of milling train, finally by the Power output distribution stage of power transmission mechanism, output torque is exported again, the former base of rolled metal.
At present, conveniently the installation and debugging of milling train are safeguarded, often by the power of milling train input retarding stage and Power output distribution stage coadunation, are jointly assemblied in the composite teeth roller box of compound press.In the prior art, the distribution stage of core is generally all vertically arranged by the power transmission mechanism of milling train, and horizontally disposed for the retarding stage of front end, both are orthogonal.
But, when two intermeshing gear centres of distribution stage are apart from time larger, or when the gearratio comparatively large (being such as greater than 3) of retarding stage, the size of the power transmission mechanism of prior art structure just will sharply increase, appearance and size and the weight of the composite teeth roller box of milling train will correspondingly enlarge markedly, inner space will can not get rational utilization, cause the waste of larger material and cost.
Summary of the invention
The object of this invention is to provide a kind of power transmission mechanism, the space of composite teeth roller box inside can be made full use of, reduce the waste of material and cost.Another object of the present invention is to provide a kind of composite teeth roller box comprising above-mentioned power transmission mechanism, and a kind of milling train comprising above-mentioned composite teeth roller box.
For solving the problems of the technologies described above, the invention provides a kind of power transmission mechanism of composite teeth roller box of milling train, comprising the first power shaft, the first deceleration gear wheel, the first output shaft and the second output shaft; Described first power shaft is provided with the first reduction pinion teeth for being meshed with described first deceleration gear wheel; Described first deceleration gear wheel is set on described first output shaft; Described second output shaft and described first output shaft parallel to each other, and both are by being separately positioned on respective outer wall, intermeshing gear mesh transmission; The line of centres of described first power shaft and the first deceleration gear wheel, becomes α angle with described first output shaft with the line of centres of the second output shaft, and its angular range is 0 ° of < α <90 °.
Preferably, the line of centres of described first power shaft and the first deceleration gear wheel is 45 ° with α angle formed by the line of centres of described first output shaft and the second output shaft.
Preferably, the outer wall of described first output shaft is provided with two mutual symmetrical keyways, described first deceleration gear wheel is by being connected with described first output shaft with the double bond that described keyway matches.
Preferably, described first deceleration gear wheel and the first reduction pinion teeth are helical gears, and the intermeshing gear mesh that described first output shaft and the second output shaft are arranged is double helical tooth roller gear.
Preferably, the gearratio of the intermeshing gear mesh described first output shaft and the second output shaft arranged is 1:1.
Preferably, also comprising the second power shaft be arranged in parallel with described first power shaft and the second reduction pinion teeth be arranged on described second power shaft, described first power shaft being also provided with the second deceleration gear wheel for being meshed with described second reduction pinion teeth.
The present invention also provides a kind of composite teeth roller box of milling train, and comprise casing and be arranged at the power transmission mechanism in described casing, wherein, described power transmission mechanism is the power transmission mechanism described in above-mentioned any one.
Preferably, described casing comprises and is arranged on the case lid at top, the upper box of mid portion and middle casing, and is arranged on the lower box of bottom; Described case lid is provided with the air filter for filtered air; Described middle casing is provided with the handhole cover for observing each gears meshing or lubrication circumstances; Described lower box is provided with the oil-feed flange for oil-feed and the oil return flange for oil return.
Preferably, the faying face place of described upper box, middle casing and lower box is provided with the straight pin for preventing each Box body dislocation.
The present invention also provides a kind of milling train, comprises fuselage and is arranged at the composite teeth roller box in described fuselage, wherein, and the composite teeth roller box of described composite teeth roller box according to any one of above-mentioned three.
The power transmission mechanism of the composite teeth roller box of milling train provided by the present invention, comprises the first power shaft, the first deceleration gear wheel, the first output shaft and the second output shaft.Wherein, the first power shaft is provided with the first reduction pinion teeth, the first deceleration gear wheel and the first reduction pinion teeth can intermesh.First deceleration gear wheel is set on the first output shaft, and the second output shaft is parallel with the first output shaft.By being separately positioned on the intermeshing gear mesh transmission on respective outer wall between first output shaft and the second output shaft.Most important, the line at the respective center of the first power shaft and the first deceleration gear wheel, with the line of centres of the first output shaft and the second output shaft, both are mutually α angle, and 0 ° of < α <90 °.Power transmission mechanism provided by the present invention, first retarding stage mainly comprises the first power shaft, is arranged on the first reduction pinion teeth on the first power shaft and is arranged on the first deceleration gear wheel on the first output shaft, because the first deceleration gear wheel is coaxial with the first output shaft, therefore when power is from the first power shaft input, first can increasing of slowing down be turned round through the first reduction pinion teeth and the first intermeshing of deceleration gear wheel, then power is synchronously delivered on the first output shaft under the rotation of the first deceleration gear wheel; Simultaneously because the second output shaft and the first output shaft are by intermeshing gear mesh transmission, therefore power is when being delivered to the first output shaft and exporting, and also exports via the second output shaft shunting simultaneously.And the line of centres of the first power shaft and the first deceleration gear wheel, if with the surface of the first deceleration gear wheel for datum plane, so its line of centres should be the radial direction of the first deceleration gear wheel; And the line of centres of the first output shaft and the second output shaft, because both are parallel, therefore its line of centres will be one section of straight line, also should be the radial direction of the first deceleration gear wheel in aforementioned basic plane simultaneously.Both lines of centres are mutually α angle, and the angular range at this α angle is 0 ° ~ 90 °, and does not comprise the situation of 0 ° and 90 °, and namely α angle is acute angle.Therefore, when α angle is acute angle, the arbitrary quadrant of four-quadrant that first power shaft and the position of the first reduction pinion teeth on datum plane will be arranged in datum plane, and can not appear on quadrature axis, so, the setting position of power input retarding stage in composite teeth roller box of power transmission mechanism is just roughly positioned at its upper left side, upper right side, lower left or bottom-right any position place.And above-mentioned any position all will drop in the covering space of composite teeth roller box, increase laterally or longitudinal length additionally to composite teeth roller box, also just not need the volume additionally increasing composite teeth roller box.Therefore power transmission mechanism provided by the present invention, on the basis of normal transmission power, can reasonably utilize space vacant in composite teeth roller box, improve space availability ratio in composite teeth roller box, relatively alleviate the overall weight of composite teeth roller box, save raw material and cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the overall structure schematic diagram of the first detailed description of the invention provided by the present invention;
Fig. 2 is the overall structure schematic diagram of the second detailed description of the invention provided by the present invention;
Fig. 3 is the overall structure schematic diagram of the third detailed description of the invention provided by the present invention;
Fig. 4 is the overall structure schematic diagram of composite teeth roller box provided by the present invention;
Fig. 5 is for the A-A of the roller box of composite teeth shown in Fig. 4 is to sectional view;
Fig. 6 is for the B-B of the roller box of composite teeth shown in Fig. 4 is to sectional view.
Wherein, in Fig. 1-Fig. 3:
First power shaft-1, the first deceleration gear wheel-2, the first output shaft-3, the second output shaft-4, the second power shaft-5, the second deceleration gear wheel-6.
In Fig. 4-Fig. 6:
Casing-7, case lid-701, upper box-702, middle casing-703, lower box-704, air filter-8, handhole cover-9, oil-feed flange-10, straight pin-11.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, Fig. 1 is the overall structure schematic diagram of the first detailed description of the invention provided by the present invention.
In the first detailed description of the invention provided by the present invention, the power transmission mechanism of the composite teeth roller box of milling train comprises the first power shaft 1, first deceleration gear wheel 2, first output shaft 3 and the second output shaft 4.
Wherein, the first power shaft 1 and the first deceleration gear wheel 2 are front end power input retarding stages of power transmission mechanism.First power shaft 1 is provided with the first reduction pinion teeth, and the first deceleration gear wheel 2 and the first reduction pinion teeth intermesh and rotate.First deceleration gear wheel 2 is set on the first output shaft 3, the outer wall of the first output shaft 3 is provided with the keyway that two positions are symmetrical mutually, and the first deceleration gear wheel 2 is by being connected with the first output shaft 3 with the double bond that this keyway matches herein preferably.Setting like this, the assembling of the first deceleration gear wheel 2 on the first output shaft 3 will be more stable.Certainly, the set-up mode of the first deceleration gear wheel 2 on the first output shaft 3 is a lot, and all the other can adopt as by singly-bound, spline etc.Under the transmission of the first reduction pinion teeth and the first deceleration gear wheel 2, power inputs through the first power shaft 1, is then delivered on the first output shaft 3.Certainly, in the process of power transmission, because the first reduction pinion teeth is driving wheel, and the first deceleration gear wheel is driven pulley, the effect that power reaches in retarding stage " deceleration increasing is turned round ".Herein preferably, first deceleration gear wheel 2 and the first reduction pinion teeth are helical gears, so arrange, on the basis of enough performances of the deceleration input stage of guarantee power transmission mechanism, employing structure is comparatively simple, the gear of good stability, can reduce costs to a certain extent.Certainly, the first deceleration gear wheel 2 and the first reduction pinion teeth not merely refer to helical gears, and all the other such as double helical tooth roller gears etc. can be selected too.
Then, the Power output distribution stage of power transmission mechanism comprises the first output shaft 3 and the second output shaft 4.Wherein, the second output shaft 4 and the first output shaft 3 parallel to each other, and be respectively arranged with on both outer walls can intermeshing gear, and these two gears composition gear mesh, the first output shaft 3 and the second output shaft 4 just carry out power transmission by this gear mesh.Herein preferably, this gear mesh is double helical tooth roller gear, so arranges, and the transmission performance of the first output shaft 3 and the second output shaft 4 will be improved, and the mechanical efficiency of the output distribution stage of power transmission mechanism is improved.Certainly, this gear mesh not merely refers to double helical tooth roller gear, and all the other such as helical gears are feasible too.Further, also the gearratio of this gear mesh can be set to 1:1, so arrange, two gears of composition gear mesh, by identical, be convenient to maintenance and change.And by the power of output according to the output of 1:1, power will be made to divide equally output in distribution stage.Certainly, the gearratio of the intermeshing gear mesh that the first output shaft 3 and the second output shaft 4 are arranged is not only 1:1, and concrete proportional numerical value can be considered according to actual power demand situation, such as 1:2 or 2:1 etc.
Importantly, in the present invention, the setting position of the first power shaft 1 and the first reduction pinion teeth and the centerline dip of the first output shaft 3 and the second output shaft 4.Specifically, suppose that the surface of the first deceleration gear wheel 2 is two dimension-four-quadrant datum plane, because the first deceleration gear wheel 2 is just arranged on the first output shaft 3, so using the line of centres of the first output shaft 3 and the second output shaft 4 in parallel as a wherein quadrature axis, so in the present embodiment, the line of centres of the first power shaft 1 and the first deceleration gear wheel 2 is just mutually α angle with the line of centres of aforementioned first output shaft 3 and the second output shaft 4, and the angular range at this α angle is: 0 ° of < α <90 °, and do not comprise the situation at 0 ° and 90 ° angle.That is, the line of centres of the first power shaft 1 and the first deceleration gear wheel 2, is mutually acute angle with the line of centres of the first output shaft 3 and the second output shaft 4.Herein preferably, the angle at this α angle is 45 °, so arranges and the deceleration input stage of power transmission mechanism can be made to utilize space in composite teeth roller box substantially.Certainly, the angle at α angle can be chosen arbitrarily in 0 ° ~ 90 °, such as 30 °, 60 ° etc., specifically can consider according to the practical set situation of milling train.
Need know, power transmission mechanism is generally all arranged in the large-scale composite teeth roller box of milling train, include the input retarding stage of power transmission mechanism completely to make composite teeth roller box and export distribution stage, and self is fixed on milling train simultaneously, the appearance and size of general composite teeth roller box all designs larger, and then extends out and be connected with milling train fuselage.Therefore, power transmission mechanism provided by the present invention, when α angle is acute angle, the first power shaft 1 and the position of the first reduction pinion teeth on aforementioned two dimension-four-quadrant datum plane will be arranged in arbitrary quadrant of the four-quadrant of this datum plane, and can not appear on quadrature axis.So, the setting position of power input retarding stage in composite teeth roller box of power transmission mechanism is positioned at upper left side centered by the first deceleration gear wheel 2, upper right side, lower left or bottom-right any position place with regard to approximate location.Situation shown in accompanying drawing 1 is power input retarding stage and is positioned at position, lower left centered by the first deceleration gear wheel 2.Setting like this, the existence of power input retarding stage increases laterally or longitudinal length additionally to composite teeth roller box, does not also just need the volume additionally increasing composite teeth roller box.In sum, power transmission mechanism provided by the present invention, on the basis of normal transmission power, can reasonably utilize space vacant in composite teeth roller box, improve space availability ratio in composite teeth roller box, relatively alleviate the overall weight of composite teeth roller box, also save raw material and cost simultaneously.
Please refer to Fig. 2, Fig. 2 is the overall structure schematic diagram of the second detailed description of the invention provided by the present invention.
The second detailed description of the invention provided by the present invention, is from the difference of the first detailed description of the invention: the setting position of input retarding stage in composite teeth roller box of power transmission mechanism is different.If centered by the first deceleration gear wheel 2, the deceleration input stage of the power transmission mechanism so in the first detailed description of the invention is positioned at its lower left, and the present embodiment is then positioned at lower right.The remainder of the present embodiment is then identical with the first embodiment, repeats no more herein.
Certainly, the present invention also exist in theory numerous with the first detailed description of the invention, the second detailed description of the invention all the other embodiments arranged side by side, do not enumerate herein.
Please refer to Fig. 3, Fig. 3 is the overall structure schematic diagram of the third detailed description of the invention provided by the present invention.
The third detailed description of the invention provided by the present invention, the basis of the second detailed description of the invention is improved, is specially: set up the secondary power comprising the second power shaft 5, second reduction pinion teeth and the second deceleration gear wheel 6 and exported retarding stage.The remainder of the power transmission mechanism that the present embodiment provides as hereinbefore, repeats no more herein.
In the third detailed description of the invention provided by the present invention, in order to increase the service behaviour of milling train further, the present embodiment has set up secondary power input retarding stage in the front end of a power input retarding stage of previous embodiment.This secondary power input retarding stage comprises the second power shaft 5 be arranged in parallel with the first power shaft 1 and the second reduction pinion teeth be arranged on the second power shaft 5, and the second deceleration gear wheel 6 for being meshed with the second reduction pinion teeth.Setting like this, power inputs from the second power shaft 5, first through the engagement of the second reduction pinion teeth and the second deceleration gear wheel 6, reaches ground floor " deceleration increasing is turned round " effect; Then power inputs from the first power shaft 1, then through the engagement of the first reduction pinion teeth and the second deceleration gear wheel 2, reaches the second layer " deceleration increasing is turned round " effect.Last power distributes output according to a certain percentage from the first output shaft 4 and the second output shaft 5.
Please refer to Fig. 4, Fig. 5 and Fig. 6, Fig. 4 is the overall structure schematic diagram of composite teeth roller box provided by the present invention; Fig. 5 is for the A-A of the composite teeth roller box shown in Fig. 4 is to sectional view; Fig. 6 is for the B-B of the composite teeth roller box shown in Fig. 4 is to sectional view.
The present invention also provides a kind of composite teeth roller box of milling train, and the power transmission mechanism comprising casing 7 and be arranged in casing 7, wherein, this power transmission mechanism is identical with foregoing teachings, repeats no more herein.
Particularly, the composite teeth roller box of milling train provided by the present invention, casing 7 comprises and is arranged on the case lid 701 at top, the upper box 702 of mid portion and middle casing 703, and is arranged on the lower box 704 bottom casing 7.And the air filter 8 be provided with on case lid 701 for filtered air, middle casing 703 is provided with the handhole cover 9 for observing all kinds of gears meshing or lubrication circumstances, lower box 704 is provided with oil-in and oil return opening, and by oil-feed flange 10 oil-feed, by the oil return of oil return flange.
Herein, in order to reinforce whole composite teeth roller box, be provided with the straight pin 11 for preventing each Box body dislocation at the faying face place of upper box 702, middle casing 703 and lower box 704.
The present invention also provides a kind of milling train, and comprise fuselage and be arranged on the composite teeth roller box in fuselage, wherein, this composite teeth roller box is identical with aforementioned composite teeth roller box content, repeats no more herein.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a power transmission mechanism for the composite teeth roller box of milling train, is characterized in that, comprises the first power shaft (1), the first deceleration gear wheel (2), the first output shaft (3) and the second output shaft (4); Described first power shaft (1) is provided with the first reduction pinion teeth for being meshed with described first deceleration gear wheel (2); Described first deceleration gear wheel (2) is set on described first output shaft (3); Described second output shaft (4) is parallel to each other with described first output shaft (3), and both are by being separately positioned on respective outer wall, intermeshing gear mesh transmission; The line of centres of described first power shaft (1) and the first deceleration gear wheel (2), become α angle with described first output shaft (3) with the line of centres of the second output shaft (4), and its angular range is 0 ° of < α <90 °.
2. power transmission mechanism according to claim 1, it is characterized in that, the line of centres of described first power shaft (1) and the first deceleration gear wheel (2) is 45 ° with α angle formed by the line of centres of described first output shaft (3) and the second output shaft (4).
3. power transmission mechanism according to claim 2, it is characterized in that, the outer wall of described first output shaft (3) is provided with two mutual symmetrical keyways, described first deceleration gear wheel (2) is by being connected with described first output shaft (3) with the double bond that described keyway matches.
4. power transmission mechanism according to claim 3, it is characterized in that, described first deceleration gear wheel (2) and the first reduction pinion teeth are helical gears, and described first output shaft (3) is double helical tooth roller gear with the upper intermeshing gear mesh arranged of the second output shaft (4).
5. power transmission mechanism according to claim 4, is characterized in that, described first output shaft (3) is 1:1 with the gearratio of the upper intermeshing gear mesh arranged of the second output shaft (4).
6. the power transmission mechanism according to any one of claim 1-5, it is characterized in that, also comprising the second power shaft (5) be arranged in parallel with described first power shaft (1) and the second reduction pinion teeth be arranged on described second power shaft (5), described first power shaft (1) being also provided with the second deceleration gear wheel (6) for being meshed with described second reduction pinion teeth.
7. a composite teeth roller box for milling train, the power transmission mechanism comprising casing (7) and be arranged in described casing (7), is characterized in that, described power transmission mechanism is the power transmission mechanism described in any one of claim 1-6.
8. composite teeth roller box according to claim 7, it is characterized in that, described casing (7) comprises the case lid (701), the upper box (702) of mid portion and the middle casing (703) that are arranged on top, and is arranged on the lower box (704) of bottom; Described case lid (701) is provided with the air filter (8) for filtered air; Described middle casing (703) is provided with the handhole cover (9) for observing each gears meshing or lubrication circumstances; Described lower box (704) is provided with for the oil-feed flange (10) of oil-feed and the oil return flange for oil return.
9. composite teeth roller box according to claim 8, it is characterized in that, described upper box (702), middle casing (703) are provided with the straight pin (11) for preventing each Box body dislocation with the faying face place of lower box (704).
10. a milling train, comprise fuselage and be arranged at the composite teeth roller box in described fuselage, it is characterized in that, described composite teeth roller box is the composite teeth roller box described in any one of claim 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510398596.XA CN104959386B (en) | 2015-07-08 | 2015-07-08 | A kind of milling train, composite teeth roller box and power transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510398596.XA CN104959386B (en) | 2015-07-08 | 2015-07-08 | A kind of milling train, composite teeth roller box and power transmission mechanism |
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| Publication Number | Publication Date |
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| CN104959386A true CN104959386A (en) | 2015-10-07 |
| CN104959386B CN104959386B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510398596.XA Active CN104959386B (en) | 2015-07-08 | 2015-07-08 | A kind of milling train, composite teeth roller box and power transmission mechanism |
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| Country | Link |
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Cited By (2)
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| CN105422809A (en) * | 2015-12-19 | 2016-03-23 | 重庆麦拓科技有限公司 | Rolling mill and box thereof |
| CN112984089A (en) * | 2021-02-07 | 2021-06-18 | 于洋 | Rail transit gear box |
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| CN204799684U (en) * | 2015-07-08 | 2015-11-25 | 重庆齿轮箱有限责任公司 | Rolling mill, compound gear case and power transmitting mechanism |
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| JP2001071003A (en) * | 1999-09-07 | 2001-03-21 | Daido Steel Co Ltd | Rolling device |
| JP2001124291A (en) * | 1999-10-25 | 2001-05-11 | Sumitomo Heavy Ind Ltd | Lubricating device for rolling mill |
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| CN105422809A (en) * | 2015-12-19 | 2016-03-23 | 重庆麦拓科技有限公司 | Rolling mill and box thereof |
| CN112984089A (en) * | 2021-02-07 | 2021-06-18 | 于洋 | Rail transit gear box |
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| Publication number | Publication date |
|---|---|
| CN104959386B (en) | 2017-12-01 |
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