CN202725634U - Transmission device of 45-degree top-cross continuous rolling unit - Google Patents
Transmission device of 45-degree top-cross continuous rolling unit Download PDFInfo
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- CN202725634U CN202725634U CN2012204413688U CN201220441368U CN202725634U CN 202725634 U CN202725634 U CN 202725634U CN 2012204413688 U CN2012204413688 U CN 2012204413688U CN 201220441368 U CN201220441368 U CN 201220441368U CN 202725634 U CN202725634 U CN 202725634U
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Abstract
The utility model provides a transmission device of a 45-degree top-cross continuous rolling unit. The transmission device comprises a reversing variable-speed distribution device with two output shafts and a driving motor capable of being arranged on one side of the rolling center line of the 45-degree top-cross continuous rolling unit, the rotating center lines of the two output shafts are perpendicular to the rotating center line of an input shaft of the reversing variable-speed distribution device, the rotating center line of the input shaft of the reversing variable-speed distribution device are perpendicular to the rolling center line of the 45-degree top-cross continuous rolling unit, the two output shafts of the reversing variable-speed distribution device are connected with input shafts of driven bevel gear boxes of a pair of adjacent frames in the 45-degree top-cross continuous rolling unit respectively, the rotating center line of an output shaft of the driving motor is perpendicular to the rolling center line of the 45-degree top-cross continuous rolling unit, and the output shaft of the driving motor is connected with the input shaft of the reversing variable-speed distribution device. The driving motor in the transmission device of the 45-degree top-cross continuous rolling unit is arranged on one side of the rolling center line, and the transmission device is good in working environment and convenient to maintain.
Description
Technical Field
The utility model relates to a transmission of top crossing 45 continuous rolling mill group is applicable to the finishing mill group and the pre-finishing mill group of rod, wire rod, belongs to rolling machinery.
Background
The metal wire rod needs to be rolled after the blank is cast, and usually needs to be rolled by a plurality of groups of rolling mills, and the cross section of the wire rod is also reduced continuously. In recent years, a top-crossed 45 ° continuous rolling mill group has been widely adopted as a finishing mill group and a pre-finishing mill group in a high-speed wire rod continuous rolling mill group. As shown in fig. 1 and 2, a high-speed wire top-crossing 45 ° continuous rolling mill group as a finishing mill group generally includes a base and 10 stands fixed on the base, and rolls of the 10 stands are alternately arranged at a top crossing of 45 ° with a horizontal rolling center line. As shown in fig. 1, the transmission device used in such a continuous rolling mill train generally includes a driving motor 100 and a twin-output-shaft speed-increasing box 200, wherein an output shaft of the driving motor 100 is coupled to an input shaft of the twin-output-shaft speed-increasing box 200, two output shafts of the twin-output-shaft speed-increasing box 200 have different rotation speeds, one of the output shafts transmits a singular number frame group of a 1# frame, a 3# frame, a 5# frame, a 7# frame and a 9# frame, and the other output shaft transmits an even number frame group of a 2# frame, a 4# frame, a 6# frame, a 8# frame and a 10# frame, thereby forming a compact finishing mill train. However, through production practice, such a top-crossed 45 ° continuous rolling train compactly arranged by 10 stands has the following disadvantages:
firstly, the driving motor and the double-output-shaft speed increasing box are arranged below the water cooling box at the outlet side of the rolling production line, so that the environment is severe, and the maintenance is inconvenient;
secondly, the driving motor is high in power and large in size and needs to be arranged below the water cooling box, the input shaft and the output shaft of the double-output-shaft speed increasing box cannot be designed on the same horizontal plane, and the central line of the input shaft (the speed increasing large gear) is lower than the output shaft by a certain distance, so that the size of a transmission gear of the double-output-shaft speed increasing box and the size and the weight of a box body of the double-output-shaft speed increasing box are increased;
thirdly, the space between the frames in the 10-frame centralized transmission continuous rolling mill set is small, the problem that the internal structure is deteriorated due to the overlarge temperature rise of the rolled piece cannot be solved, and the rotating speed of each group of rollers cannot be adjusted respectively due to the fact that the 10 frames are in centralized transmission through the same driving motor. With the development of production technology and electric control technology, a compact combined continuous rolling mill group with two stands or four stands as a group for independent transmission is required.
SUMMERY OF THE UTILITY MODEL
In order to solve the inconvenient maintenance scheduling problem that the transmission of the continuous rolling unit of excellent wire rod among the above-mentioned prior art installed in the below of the water-cooling tank of rolling production line outlet side and lead to, the utility model provides a transmission of top traffic 45 continuous rolling unit, driving motor can set up in one side of rolling central line, and operational environment is good, easy maintenance.
The utility model provides a technical scheme as follows:
a transmission device of a top crossing 45-degree continuous rolling unit comprises at least two frames, rollers of adjacent frames are arranged at an angle of 90 degrees, and each frame comprises a driven bevel gear box for driving the rollers to move; the top crossing 45-degree continuous rolling unit transmission device is used for providing power for a rack of the top crossing 45-degree continuous rolling unit, and comprises:
the reversing variable-speed distribution device is provided with two output shafts, the rotating center lines of the two output shafts of the reversing variable-speed distribution device are perpendicular to the rotating center line of the input shaft of the reversing variable-speed distribution device, the rotating center line of the input shaft of the reversing variable-speed distribution device is perpendicular to the rolling center line of a top-crossed 45-degree continuous rolling unit, and the two output shafts of the reversing variable-speed distribution device are respectively connected with the input shafts of driven bevel gear boxes of a pair of adjacent racks in the top-crossed 45-degree continuous rolling unit; and the number of the first and second groups,
the driving motor can be arranged on one side of a rolling central line of the top-crossing 45-degree continuous rolling unit, the rotating central line of an output shaft of the driving motor is perpendicular to the rolling central line of the top-crossing 45-degree continuous rolling unit, and the output shaft of the driving motor is connected with an input shaft of the reversing variable-speed distribution device;
the output shaft of the driving motor drives the input shaft of the reversing variable-speed distribution device; and an output shaft of the reversing variable-speed distribution device drives a rack of a top crossing 45-degree continuous rolling unit.
Further, the reversing speed change distribution device comprises a bevel gear distribution box with two output shafts;
the input shaft of the bevel gear distribution box is vertical to the rolling central line of the top-crossed 45-degree rolling mill set, and is connected with the output shaft of the driving motor;
two output shafts of the bevel gear distribution box are perpendicular to an input shaft of the bevel gear distribution box, and the two output shafts of the bevel gear distribution box are respectively connected with input shafts of driven bevel gear boxes of a pair of adjacent frames in a continuous rolling unit with the top crossed by 45 degrees.
Further, the reverse variable-speed distribution device includes:
the input shaft and the output shaft of the speed increasing box are both vertical to the rolling central line of the top-crossed 45-degree rolling mill set, and the input shaft of the speed increasing box is connected with the output shaft of the driving motor;
and the number of the first and second groups,
the bevel gear distribution box is provided with two output shafts and used for changing the motion direction, the input shaft of the bevel gear distribution box is vertical to the rolling central line of the top-crossed 45-degree rolling mill set, and the input shaft of the bevel gear distribution box is connected with the output shaft of the speed increasing box; two output shafts of the bevel gear distribution box are perpendicular to an input shaft of the bevel gear distribution box, and the two output shafts of the bevel gear distribution box are respectively connected with input shafts of driven bevel gear boxes of a pair of adjacent frames in a continuous rolling unit with the top crossed by 45 degrees.
Further, the bevel gear distribution box includes:
a main bevel gear box body; and the number of the first and second groups,
the first main bevel gear pair is composed of a pair of bevel gears with vertical axes and used for changing the motion direction, and is arranged in the main bevel gear box body;
a second main bevel gear pair which is composed of another pair of bevel gears vertical to the axial line and used for changing the motion direction is arranged in the main bevel gear box body;
wherein,
the input shaft of the first main bevel gear pair is the input shaft of the bevel gear distribution box;
the input shaft of the second main bevel gear pair is coaxially coupled with the input shaft of the first main bevel gear pair;
and the output shaft of the first main bevel gear pair and the output shaft of the second main bevel gear pair are respectively connected with the input shafts of the driven bevel gear boxes of a pair of adjacent frames in the continuous rolling unit with the top crossing angle of 45 degrees.
Further, the gear ratio of the first main bevel gear pair is the same as the gear ratio of the second main bevel gear pair;
or,
the ratio of the speed ratio of the first main bevel gear to the speed ratio of the second main bevel gear pair is equal to the elongation of a pair of adjacent frames coupled to the output shaft of the first main bevel gear and the output shaft of the second main bevel gear, respectively.
Further, the speed increasing box includes:
a speed increasing box body;
the cylindrical gear pair is used for regulating the speed and is arranged in the speed increasing box body;
wherein,
the input shaft of the cylindrical gear pair is connected with the output shaft of the driving motor;
and an output shaft of the cylindrical gear pair is connected with an input shaft of the main bevel gear distribution box.
Further, the transmission device of the top-crossing 45-degree continuous rolling unit is arranged on the inlet side and/or the outlet side of the top-crossing 45-degree continuous rolling unit.
The utility model has the advantages as follows:
the utility model discloses a driving motor among the transmission of top traffic 45 continuous rolling unit can set up in one side of rolling central line to two output shafts through switching-over variable speed distributor do not transmit a pair of adjacent frame in 45 continuous rolling unit of top traffic, operational environment is good, convenient maintenance.
Drawings
FIG. 1 is a schematic structural view of a prior art top-crossed 45 ° continuous rolling mill train;
FIG. 2 is a schematic diagram of the position structure of adjacent stands in a prior art top cross 45 ° continuous rolling mill train;
fig. 3 is a schematic structural view of a first embodiment of a transmission device of a top cross 45-degree continuous rolling unit according to the present invention;
fig. 4 is a schematic structural view of a second embodiment of the transmission device of the top cross 45 ° continuous rolling mill group according to the present invention;
fig. 5 is a schematic structural view of a fourth embodiment of the transmission device of the top cross 45 ° continuous rolling mill group according to the present invention;
fig. 6 is a schematic structural view of a third embodiment of the transmission device of the top cross 45-degree continuous rolling unit.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, a top-crossing 45 ° continuous rolling mill set in the prior art includes 10 stands-1 #, 2#, 3#, 4#, 5#, 6#, 7#, 8#, 9# and 10# arranged at a top crossing 45 °, wherein the rolls of the 10 stands are alternately arranged at a top crossing 45 ° with a horizontal rolling center line a to form two rows of stands, one row is a odd stand-1 stand, a 3 stand, a 5 stand, a 7 stand and a 9 stand, and the other row is an even stand-2 stand, a 4 stand, a 6 stand, an 8 stand and a 10 stand. As shown in fig. 1, a transmission device adopted by a top-crossing 45 ° continuous rolling mill train in the prior art generally comprises a driving motor 100 and a dual-output-shaft speed-increasing box 200, wherein a rotation center line of an output shaft of the driving motor 100 coincides with or is parallel to a rolling center line of the top-crossing 45 ° continuous rolling mill train, an input shaft of the dual-output-shaft speed-increasing box 200 is parallel to a rotation center line of an output shaft, an output shaft of the driving motor 100 is coupled with an input shaft of the dual-output-shaft speed-increasing box 200, two output shafts of the dual-output-shaft speed-increasing box 200 have different rotation speeds, one of the output shafts drives a singular frame set, and the other output shaft drives an even frame set, thereby forming a compact finishing mill train. However, in the top-crossing 45-degree continuous rolling unit, the driving motor 100 and the double-output-shaft speed increasing box 200 are arranged below the water cooling box at the outlet side of the rolling production line, so that the environment is severe, and the overhaul and the maintenance are inconvenient.
In order to solve the problem, the utility model provides a transmission of top crossing 45 continuous rolling mill group improves the transmission of top crossing 45 continuous rolling mill group, and its driving motor 100 sets up in one side of rolling central line a, and needn't install the water-cooling tank below at the outlet side of this continuous rolling mill group, and operational environment is good, and is convenient for maintain.
Before explaining the transmission device of the top crossing 45-degree continuous rolling unit of the utility model, the arrangement of each frame in the top crossing 45-degree continuous rolling unit in the prior art and the structural principle thereof are firstly explained.
As shown in fig. 1 and 2, the top-crossed 45 ° continuous rolling mill train includes a base 300, at least two stands 400 are sequentially disposed on the base 300, each stand 400 has a driven bevel gear box 401 having a bevel gear pair and a roller box 403 fixedly connected to the driven bevel gear box 401 for mounting a roller 402, and the bevel gear pair of the driven bevel gear box 401 is generally formed by a pair of bevel gears having axes perpendicular to each other such that rotation center lines of an input shaft and an output shaft of the driven bevel gear box 401 are perpendicular to each other, wherein the rotation center line of the input shaft of the driven bevel gear box 401 is parallel to a rolling center line a, the rotation center line of the output shaft of the driven bevel gear box 401 is perpendicular to the rolling center line a, and the roller 402 is mounted on the output shaft of the driven bevel gear box 401. The racks 400 in one row of odd rack group are connected in series in sequence, and the racks 400 in the other row of even rack group are connected in series in sequence. One output shaft of the double-output-shaft speed increasing box 200 is connected with the input shaft of the driven bevel gear box 401 of the frame close to the inlet side of the odd frame group, so that power is transmitted to the roller 402 of the double-output-shaft speed increasing box and the input shaft of the driven bevel gear box 401 of other odd frames connected with the double-output-shaft speed increasing box in series, and the transmission of the roller 402 of the odd frame group is realized; the other output shaft of the double-output shaft speed increasing box 200 is connected with the input shaft of the driven bevel gear box 401 of the frame close to the inlet side of the even-number frame group, so that power is transmitted to the roller 402 of the double-output shaft speed increasing box and the input shaft of the driven bevel gear box 401 of the other even-number frame connected in series with the roller 402 of the even-number frame group, and transmission of the roller 402 of the even-number frame group is achieved. The dual output shaft speed increasing box 200 is used for speed regulation, and the output speeds of the odd number frame set and the even number frame set are configured by the speed ratio of the cylindrical gear pair in the dual output shaft speed increasing box 200.
On the basis of the top crossing 45 ° continuous rolling mill group in the prior art, the following explains that the utility model discloses a transmission of top crossing 45 ° continuous rolling mill group, this transmission of top crossing 45 ° continuous rolling mill group can regard as the transmission of the finishing mill group of rod or wire rod and the transmission of finishing mill group in advance, that is to say, the top crossing 45 ° continuous rolling mill group that has this transmission of top crossing 45 ° continuous rolling mill group can regard as the finishing mill group or the finishing mill group in advance of rod or wire rod.
As shown in fig. 2 to 6, the utility model discloses a transmission of top crossing 45 continuous rolling mill group for top crossing 45 continuous rolling mill group midframe provides power, it includes:
the reversing variable-speed distribution device is provided with two output shafts, and the rotating center lines of the two output shafts of the reversing variable-speed distribution device are perpendicular to the rotating center line of the input shaft of the reversing variable-speed distribution device; and the number of the first and second groups,
the driving motor 100 can be arranged on one side of a rolling central line a of the top-crossing 45-degree continuous rolling mill set, and the rotating central line of an output shaft of the driving motor 100 is vertical to the rolling central line a of the rolling mill set;
the rotation center line of the input shaft of the reversing variable-speed distribution device is vertical to the rolling center line a of the continuous rolling mill set with the top crossing angle of 45 degrees, and the output shaft of the driving motor 100 is connected with the input shaft of the reversing variable-speed distribution device through a coupler to drive the input shaft of the reversing variable-speed distribution device to move;
two output shafts of the reversing variable-speed distribution device are respectively connected with input shafts of driven bevel gear boxes 401 of a pair of adjacent frames 400 close to the outlet side or the inlet side in a top-crossed 45-degree continuous rolling unit through couplers to drive rollers of the frames 400 to move.
The output shaft of the middle driving motor of the transmission device of the top-crossing 45-degree continuous rolling unit is perpendicular to the rotation center line of the output shaft of the reversing variable-speed distribution device, so that the driving motor can be installed on one side of the rolling center line of the top-crossing 45-degree continuous rolling unit and is not limited to be installed below a water cooling box on the outlet side of the top-crossing 45-degree continuous rolling unit or below equipment on the inlet side of the top-crossing 45-degree continuous rolling unit, and the transmission process of the transmission device is as follows:
the output shaft of the driving motor 100 drives the input shaft of the reversing variable-speed distribution device, the input shaft of the reversing variable-speed distribution device drives two output shafts of the reversing variable-speed distribution device, the two output shafts respectively drive the input shafts of driven bevel gear boxes 401 of a pair of adjacent frames 400 close to the outlet side or the inlet side in a top-crossed 45-degree continuous rolling unit, and when the number of the frames 400 in each group of rolling units is two, the movement of the rollers 402 of the two frames 400 is realized; when the number of the stands 400 in the top-crossing 45-degree continuous rolling mill group is four, six or more than six, a pair of adjacent stands 400 close to the outlet side or the inlet side can respectively drive the rolls of other stands connected in series with the adjacent stands to move.
The utility model discloses a top is handed over 45 one side of 45 continuous rolling mill group's rolling central line an of transmission's driving motor 100 setting is handed over at the top, driving motor 100's the rolling central line a of output shaft rotation central line perpendicular to, switching-over variable speed distributor can carry out the speed governing on the one hand, on the other hand can change driving motor 100's output power's direction of motion, the output power transmission of driving motor 100 to the driven bevel gear box 401's of each frame 400 input shaft, because driving motor 100 can needn't set up again in the water-cooling box below of rolling mill group outlet side or top is handed over 45 continuous rolling mill group's entrance side equipment's below, operational environment is good, easy maintenance.
As shown in fig. 3, in the present invention, the reversing variable-speed distribution device may include a speed-increasing box 11 and a bevel gear distribution box 12, wherein the speed-increasing box 11 is used for speed regulation, and both the input shaft and the output shaft of the speed-increasing box 11 are perpendicular to the rolling center line a of the rolling mill train; and the input shaft of the speed increasing box 11 is used as the input shaft of the reversing speed changing distribution device and is connected with the output shaft of the driving motor 100;
the bevel gear distribution box 12 is used for changing the movement direction and is provided with two output shafts, the input shaft of the bevel gear distribution box 12 is vertical to the rolling central line a of the top-crossed 45-degree continuous rolling unit, and the input shaft of the bevel gear distribution box 12 is connected with the output shaft of the speed increasing box 11; two output shafts of the bevel gear distribution box 12 are both vertical to an input shaft of the bevel gear distribution box 12; and two output shafts of the bevel gear distribution box 12 are used as two output shafts of the reversing variable-speed distribution device and are respectively connected with input shafts of driven bevel gear boxes 401 of a pair of adjacent frames 400 in a top-crossed 45-degree continuous rolling unit.
The utility model discloses in, adopt the transmission that acceleration rate case 11, bevel gear distributor box 12 are constituteed, can utilize the convenient combination of the roller box 403 of current frame 400 and the current structural style of driven bevel gear case 401 to become to have the top of multiunit rolling mill group to constitute 45 continuous rolling mills.
Preferably, the utility model discloses to the rolling production line that needs four, six, and the top of 6 frames above is handed over 45 and is rolled the unit, can adopt multiunit rolling mill group to make up and form, multiunit rolling mill group can be two rolling mill groups, four rolling mill groups, six rolling mill groups, eight rolling mill groups etc. adopt the top of this kind of combination form to hand over 45 and roll the unit, more satisfy the requirement of current production technology and the online cooling process of rolling material.
Furthermore, the utility model discloses in, bevel gear distributor box 12 can adopt current dual output shaft bevel gear case. Specifically, as shown in fig. 3, the bevel gear distribution box 12 of the present invention includes a main bevel gear box body, and a first main bevel gear pair 121 and a second main bevel gear pair 122 disposed in the main bevel gear box body, as shown in fig. 3, the first main bevel gear pair 121 and the second main bevel gear pair 122 are both formed by a pair of bevel gears with vertical axes, wherein an input shaft of the first main bevel gear pair 121 is an input shaft of the bevel gear distribution box 12; the input shaft of the second main bevel gear pair 122 is coaxially coupled with the input shaft of the first main bevel gear pair 121; the output shaft of the first main bevel gear pair 121 and the output shaft of the second main bevel gear pair 122 are respectively used as two output shafts of the bevel gear distribution box 12, and are respectively coupled with the input shafts of the driven bevel gear boxes 401 of a pair of adjacent frames 400 close to the inlet side or the outlet side in the rolling mill group through a coupling 500.
Furthermore, the utility model discloses in, gearbox 11 can adopt current single output shaft gearbox. Specifically, as shown in fig. 3, the speed increasing box 11 of the present invention includes a speed increasing box body and a cylindrical gear pair 111 disposed in the speed increasing box body for speed adjustment; wherein, the input shaft of the cylindrical gear pair 111 is used as the input shaft of the speed increasing box 11 and is connected with the output shaft of the driving motor 100; an output shaft of the spur gear pair 111 is an output shaft of the speed increasing box 11, and is coupled to an input shaft of the bevel gear distribution box 12 via a coupling 500.
The speed increasing box 11, the bevel gear distribution box 12 and the driven bevel gear boxes 401 in the frames 400 can be configured with speed ratios according to different speeds of a single frame group and a double frame group in a top-crossed 45-degree continuous rolling mill set.
Specifically, the following ratio configurations are possible:
(1) the speed ratios of the first main bevel gear pair 121 and the second main bevel gear pair 122 are the same or 1:1, and the speed ratios of the bevel gear pairs in the driven bevel gear boxes 401 of the two adjacent racks 400 respectively connected with the two output shafts of the bevel gear distribution box 12 are configured according to the elongation rate determined by the rolling process.
(2) The speed ratios of the bevel gear pairs in the driven bevel gear boxes 401 of two adjacent racks 400 respectively connected with two output shafts of the bevel gear distribution box 12 are the same or both 1:1, and the speed ratios of the first main bevel gear pair 121 and the second main bevel gear pair 122 are configured according to the elongation rate determined by the rolling process.
(3) The speed ratio of the spur gear pair 111 of the speed increasing box 11 is configured according to the rolling speed, the motor rotation speed, the speed ratios of the first main bevel gear pair 121, the second main bevel gear pair 122, and the bevel gear pair in the driven bevel gear box 401.
It should be noted that, in the present invention, the speed increasing box 11 is separately installed on one side of the rolling center line a of the top-crossed 45 ° continuous rolling mill set, and is not directly connected to the frame 400 of the top-crossed 45 ° continuous rolling mill set, so that the speed increasing box 11 can be designed in a fixed form to meet various speed ratio requirements; and when a plurality of groups of rolling mill units are combined to form the top-crossed 45-degree continuous rolling mill unit, each rolling mill unit can be respectively provided with the speed increasing box 11, so that the speed increasing or reducing ratio of the bevel gear pair of the driven bevel gear box 401 of the rack 400 can be reduced, and the service life of the bevel gear pair of the driven bevel gear box 401 of the rack 400 is prolonged.
It should be noted that the speed increasing box 11 and the bevel gear distribution box 12 may be integrated.
In addition, when the speed increasing box 11 needs to be configured with a speed ratio of 1:1, the output shaft of the driving motor 100 may be directly coupled with the input shaft of the bevel gear distribution box 12 through the coupling 500, and the bevel gear distribution box 12 may be directly driven by the driving motor 100.
In addition, it should be noted that, because the driving motor 100 in the transmission device of the top-crossing 45 ° continuous rolling mill train of the present invention can be disposed on one side of the rolling center line, when the top-crossing 45 ° continuous rolling mill train is formed by combining multiple rolling mill trains, each rolling mill train can be provided with one or two transmission devices, and when only one transmission device is provided, the transmission device can be disposed on the inlet side or the outlet side of each rolling mill train; when two sets of transmission means are provided, the two sets of transmission means may be provided on the inlet side and the outlet side of each mill train, respectively. For example, in a rolling mill train having four stands 400, a single transmission may be provided on each of the inlet side and the outlet side to transmit the stands 400 on the inlet side and the outlet side, or only a single transmission may be provided on the inlet side or the outlet side of the rolling mill train. For a six-stand or eight-stand rolling mill train 400, only one set of transmission device may be disposed at the inlet side or the outlet side of the rolling mill train to transmit the stands 400 at the inlet side or the outlet side, and then each stand 400 is transmitted in series with each stand in each row of stands in the prior art.
In conclusion, the utility model discloses a transmission of top crossing 45 continuous rolling unit has following advantage:
the driving motor 100 and the speed increasing box 11 are placed on the side surface of a rolling central line a of a top crossing 45-degree continuous rolling unit, so that the working environment is good, and the maintenance is convenient;
the speed increasing box 11 can be independently arranged at the outer side of the top-crossed 45-degree continuous rolling unit and can be designed according to the speed ratio requirement;
the transmission device is composed of the speed increasing box 11 and the bevel gear distribution box 12, and can be conveniently combined into a continuous rolling unit with a combination form of two, four, six and the like by utilizing the structural forms of the roller box 403 and the driven bevel gear box 401 of the existing frame 400 to form a top-crossed 45-degree continuous rolling unit, so that the requirements of the existing production process and the online cooling process of rolled materials are met;
each rolling mill set in the top-crossed 45-degree continuous rolling mill set is respectively provided with a speed increasing box 11, so that the speed increasing or reducing ratio of a bevel gear pair in a driven bevel gear box 401 of each rack 400 can be reduced, and the service life of the bevel gear pair is prolonged;
the transmission device of the top crossing 45-degree continuous rolling unit can be designed in a modularized way, and meets various frame combination requirements of different speed requirements in the top crossing 45-degree continuous rolling unit.
The invention will be better illustrated by the following examples.
Example 1
As shown in fig. 3, in the present embodiment, the transmission device of the top cross 45 ° continuous rolling mill train of the present invention is used for providing power for the top cross 45 ° continuous rolling mill train having two frames, i.e., a 1# frame and a 2# frame.
The No. 1 frame and the No. 2 frame of the top crossing 45-degree continuous rolling unit are arranged at a top crossing angle of 45 degrees and are arranged at an angle of 90 degrees with each other. The driving motor 100 is arranged on one side of a rolling central line a of the top-crossed 45-degree continuous rolling mill set, an output shaft of the driving motor 100 is perpendicular to the rolling central line a, an input shaft of the speed increasing box 11 is coaxially connected with an output shaft of the driving motor 100 through a coupler 500, an output shaft of the speed increasing box is connected with an input shaft of the bevel gear distribution box 12 through the coupler 500, and two output shafts of the bevel gear distribution box 12 are respectively connected with input shafts of driven bevel gear boxes 401 of a No. 1 rack and a No. 2 rack through the couplers 500. The driving motor 100 drives the bevel gear distribution box 12 through the speed increasing box 11, and two output shafts of the bevel gear distribution box 12 drive the rollers 402 of the 1# frame and the 2# frame respectively.
In this embodiment, the transmission device of the top-crossed 45 ° continuous rolling mill train may be disposed on the inlet side of the top-crossed 45 ° continuous rolling mill train (shown in fig. 3), or may be disposed on the outlet side of the top-crossed 45 ° continuous rolling mill train.
In this embodiment, the speed ratio configuration of each transmission gear pair may adopt the following several types:
1) the speed ratios of the first main bevel gear pair 121 and the second main bevel gear pair 122 are the same or 1:1, and the speed ratios of the bevel gear pairs in the driven bevel gear boxes 401 of the two adjacent racks 400 respectively connected with the two output shafts of the bevel gear distribution box 12 are configured according to the elongation rate determined by the rolling process.
(2) The speed ratios of the bevel gear pairs in the driven bevel gear boxes 401 of two adjacent racks 400 respectively connected with two output shafts of the bevel gear distribution box 12 are the same or both 1:1, and the speed ratios of the first main bevel gear pair 121 and the second main bevel gear pair 122 are configured according to the elongation rate determined by the rolling process.
(3) The speed ratio of the spur gear pair 111 of the speed increasing box 11 is configured according to the rolling speed, the motor rotation speed, the speed ratios of the first main bevel gear pair 121, the second main bevel gear pair 122, and the bevel gear pair in the driven bevel gear box 401.
Example 2
As shown in fig. 4, the difference between the embodiment 2 and the embodiment 1 is that the transmission device of the top-crossed 45 ° continuous rolling mill train in the embodiment eliminates the speed increasing box 11, and the output shaft of the driving motor 100 is directly coupled with the input shaft of the bevel gear distribution box 12 through the coupling 500.
Example 3
As shown in fig. 6, the top crossing 45 ° continuous rolling mill train in the present embodiment includes a rolling mill train having four stands, i.e., 1# stand, 2# stand, 3# stand and 4# stand, and two sets of the transmission device of the top crossing 45 ° continuous rolling mill train of the present invention. In order to ensure that the four frames have the minimum and same spacing, one of the transmission devices of the two sets of top-crossed 45-degree continuous rolling units is arranged at the inlet side of the top-crossed 45-degree continuous rolling unit to transmit the No. 1 frame and the No. 3 frame, and the other set of the transmission devices is arranged at the outlet side of the top-crossed 45-degree continuous rolling unit to transmit the No. 2 frame and the No. 4 frame.
In the present embodiment, the gear ratio configuration of each gear pair is the same as that of embodiment 1.
Example 4
The top crossing 45 ° continuous rolling mill group in this embodiment includes a rolling mill group (shown in fig. 5 as a rolling mill group with four stands) having at least four stands such as a 1# stand, a 2# stand, a 3# stand, a 4# stand, etc. and a set of the transmission device of the top crossing 45 ° continuous rolling mill group of the present invention. In addition, in the present embodiment, the transmission device of the top-crossed 45 ° continuous rolling mill train may be disposed on the inlet side (as shown in fig. 5) or the outlet side of the top-crossed 45 ° continuous rolling mill train. Two output shafts of a bevel gear distribution box 12 of the transmission device respectively transmit a 1# frame and a 2# frame, an input shaft of a driven bevel gear box 401 of the 1# frame is coaxially connected with an input shaft of a driven bevel gear box 401 of a 3# frame and the like to transmit the 3# frame 400 and the like; the input shaft of the driven bevel gear box 401 of the 2# frame is coaxially connected with the input shaft of the driven bevel gear box 401 of the 4# frame 400 to drive the 4# frame and the like.
In the present embodiment, the gear ratio configuration of each gear pair is the same as that of embodiment 1.
Example 5
The top cross 45 ° continuous rolling mill train in this embodiment combines the various rolling mill trains of embodiment 1, embodiment 2, embodiment 3, and embodiment 4 according to production needs, to form a top cross 45 ° continuous rolling mill train of four stands, six stands, eight stands, ten stands, and the like.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A transmission device of a top crossing 45-degree continuous rolling unit comprises at least two frames, rollers of adjacent frames are arranged at an angle of 90 degrees, and each frame comprises a driven bevel gear box for driving the rollers to move; the top crossing 45-degree continuous rolling unit transmission device is used for providing power for a rack of the top crossing 45-degree continuous rolling unit, and comprises:
the reversing variable-speed distribution device is provided with two output shafts which are respectively connected with the input shafts of the driven bevel gear boxes of a pair of adjacent frames in the top-crossing 45-degree continuous rolling unit, the rotating center lines of the two output shafts of the reversing variable-speed distribution device are both vertical to the rotating center line of the input shaft of the reversing variable-speed distribution device, and the rotating center line of the input shaft of the reversing variable-speed distribution device is vertical to the rolling center line of the top-crossing 45-degree continuous rolling unit; and the number of the first and second groups,
the driving motor can be arranged on one side of a rolling central line of the top-crossing 45-degree continuous rolling unit, the rotating central line of an output shaft of the driving motor is perpendicular to the rolling central line of the top-crossing 45-degree continuous rolling unit, and the output shaft of the driving motor is coaxially connected with an input shaft of the reversing variable-speed distribution device;
the output shaft of the driving motor drives the input shaft of the reversing variable-speed distribution device;
and an output shaft of the reversing variable-speed distribution device drives a rack of a top crossing 45-degree continuous rolling unit.
2. The transmission of a top-crossed 45 ° continuous rolling mill train according to claim 1, wherein the reversing variable-speed distribution device comprises a bevel gear distribution box having two output shafts;
the input shaft of the bevel gear distribution box is vertical to the rolling central line of the top-crossed 45-degree continuous rolling unit, and is connected with the output shaft of the driving motor;
two output shafts of the bevel gear distribution box are perpendicular to an input shaft of the bevel gear distribution box, and the two output shafts of the bevel gear distribution box are respectively connected with input shafts of driven bevel gear boxes of a pair of adjacent frames in a continuous rolling unit with the top crossed by 45 degrees.
3. The transmission of a top-crossed 45 ° continuous rolling mill train according to claim 1, wherein said reversing variable-speed distribution device comprises:
the input shaft and the output shaft of the speed increasing box are both vertical to the rolling central line of the top crossing 45-degree continuous rolling unit, and the input shaft of the speed increasing box is connected with the output shaft of the driving motor;
and the number of the first and second groups,
the bevel gear distribution box is provided with two output shafts and used for changing the motion direction, the input shaft of the bevel gear distribution box is vertical to the rolling central line of the top-crossed 45-degree rolling mill set, and the input shaft of the bevel gear distribution box is connected with the output shaft of the speed increasing box; two output shafts of the bevel gear distribution box are perpendicular to an input shaft of the bevel gear distribution box, and the two output shafts of the bevel gear distribution box are respectively connected with input shafts of driven bevel gear boxes of a pair of adjacent frames in a continuous rolling unit with the top crossed by 45 degrees.
4. The top-crossed 45 ° continuous rolling mill train transmission according to claim 2 or 3, wherein the bevel gear distribution box comprises:
a main bevel gear box body; and the number of the first and second groups,
the first main bevel gear pair is composed of a pair of bevel gears with vertical axes and used for changing the motion direction, and is arranged in the main bevel gear box body;
a second main bevel gear pair which is composed of another pair of bevel gears vertical to the axial line and used for changing the motion direction is arranged in the main bevel gear box body;
wherein,
the input shaft of the first main bevel gear pair is the input shaft of the bevel gear distribution box;
the input shaft of the second main bevel gear pair is coaxially coupled with the input shaft of the first main bevel gear pair;
and the output shaft of the first main bevel gear pair and the output shaft of the second main bevel gear pair are respectively connected with the input shafts of the driven bevel gear boxes of a pair of adjacent frames in the continuous rolling unit with the top crossing angle of 45 degrees.
5. The transmission of a top-crossed 45 ° continuous rolling mill train according to claim 4, wherein:
the speed ratio of the first main bevel gear pair is the same as the speed ratio of the second main bevel gear pair;
or,
the ratio of the speed ratio of the first main bevel gear to the speed ratio of the second main bevel gear pair is equal to the elongation of a pair of adjacent frames coupled to the output shaft of the first main bevel gear and the output shaft of the second main bevel gear, respectively.
6. The transmission of a top-crossed 45 ° continuous rolling mill train according to claim 3, wherein said speed-increasing box comprises:
a speed increasing box body;
the cylindrical gear pair is used for regulating the speed and is arranged in the speed increasing box body;
wherein,
the input shaft of the cylindrical gear pair is connected with the output shaft of the driving motor;
and an output shaft of the cylindrical gear pair is connected with an input shaft of the main bevel gear distribution box.
7. Transmission of a top-crossed 45 ° continuous rolling mill train according to claim 1, 2, 3, 5 or 6, characterized in that: and the transmission device of the top crossing 45-degree continuous rolling unit is arranged on the inlet side and/or the outlet side of the top crossing 45-degree continuous rolling unit.
8. The transmission of a top-crossed 45 ° continuous rolling mill train according to claim 4, wherein: and the transmission device of the top crossing 45-degree continuous rolling unit is arranged on the inlet side and/or the outlet side of the top crossing 45-degree continuous rolling unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204413688U CN202725634U (en) | 2012-08-31 | 2012-08-31 | Transmission device of 45-degree top-cross continuous rolling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204413688U CN202725634U (en) | 2012-08-31 | 2012-08-31 | Transmission device of 45-degree top-cross continuous rolling unit |
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| Publication Number | Publication Date |
|---|---|
| CN202725634U true CN202725634U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204413688U Expired - Lifetime CN202725634U (en) | 2012-08-31 | 2012-08-31 | Transmission device of 45-degree top-cross continuous rolling unit |
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| Country | Link |
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| CN (1) | CN202725634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814336A (en) * | 2012-08-31 | 2012-12-12 | 北京京诚瑞信长材工程技术有限公司 | Transmission device of top cross 45-degree continuous rolling machine unit |
-
2012
- 2012-08-31 CN CN2012204413688U patent/CN202725634U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814336A (en) * | 2012-08-31 | 2012-12-12 | 北京京诚瑞信长材工程技术有限公司 | Transmission device of top cross 45-degree continuous rolling machine unit |
| CN102814336B (en) * | 2012-08-31 | 2016-01-13 | 北京京诚瑞信长材工程技术有限公司 | The transmission device of topcross 45 ° of Continuous mill train |
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