Ultrahigh-speed bar intelligent pinch brake roller

Abstract

The utility model provides an ultra-high-speed bar intelligent pinch brake roller which is based on a two-in-one pinch brake device and comprises two sets of pinch brake devices installed on the same box body, and each set of pinch brake device comprises an upper swing unit, a lower swing unit, a self-balancing device, a roller gap adjusting device, a servo electric cylinder assembly and a transmission motor. The upper swing unit and the lower swing unit have the functions of speed-increasing rotation transmission and clamping and loosening actions at the same time, the transmission motor drives the upper swing unit and the lower swing unit to rotate at the same time, the servo electric cylinder assembly drives the upper swing unit and the lower swing unit to conduct clamping and loosening actions, and therefore a rolled piece is clamped, conveyed and braked. The whole structure is simple and compact, the number of parts participating in the pinch brake mechanism is small, the weight is low, the inertia of the pinch brake roller is reduced, the pinch and brake capacity is improved, and the working stability and reliability are improved.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical systems, and in particular relates to an intelligent clamping and braking roller for ultra-high-speed bar stock, which clamps and brakes the rolled stock on a continuous rolling production line. Background Technology

[0002] Pinch brake rolls are conveying devices used to clamp and brake rolled pieces during their movement. They are indispensable and crucial equipment in continuous steel rolling production lines. Especially with the increasing output and variety of modern steel production, and the growing demand for high-speed, high-efficiency, and continuous production methods in steel rolling, higher requirements are placed on the design and manufacturing quality of pinch brake roll devices.

[0003] Since the pinch brake roller device clamps and brakes the rolled workpiece during its movement, it places high demands on the device's motion characteristics, responsiveness, accuracy, stability, and reliability. Existing pinch brake rollers generally use cylinder-driven swing units. However, due to the slow response speed of cylinders, the clamping and releasing actions of the swing unit cannot be accurately controlled, resulting in unresponsive pinch brake rollers. In ultra-high-speed bar production lines, where the rolled workpiece speed is high, pinch brake rollers driven by cylinder swing units can hardly meet the requirements of the rolling line process in terms of motion characteristics and responsiveness. In addition, ultra-high-speed bar production lines are generally dual-channel production lines. Installing two sets of pinch brake devices in the same housing to simultaneously clamp or brake the rolled workpiece in both channels of the rolling line can effectively reduce the equipment size and facilitate the equipment layout of the production line. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an intelligent clamping brake roller for ultra-high speed bar stock, so as to solve the technical problems of motion characteristics, response sensitivity, action accuracy, and working stability and reliability of clamping brake roller devices.

[0005] In the first aspect, this utility model provides an ultra-high speed bar intelligent clamping brake roller, based on a two-in-one clamping brake device, including a first clamping brake device and a second clamping brake device installed in the same box.

[0006] The first clamping braking device includes a first upper swing unit, a first lower swing unit, a first self-balancing device, a first roll gap adjustment device, a first servo electric cylinder assembly, and a first drive motor; the first servo electric cylinder assembly and the first upper swing unit are connected by a cylindrical pin, the first upper swing unit and the first lower swing unit are connected by the first self-balancing device, the first drive motor is connected to the first lower swing unit by a coupling, and the first roll gap adjustment device is connected to the screw of the first upper swing unit;

[0007] The second clamping braking device includes a second upper swing unit, a second lower swing unit, a second self-balancing device, a second roll gap adjustment device, a second servo electric cylinder assembly, and a second drive motor; the second servo electric cylinder assembly and the second upper swing unit are connected by a cylindrical pin, the second upper swing unit and the second lower swing unit are connected by the second self-balancing device, the second drive motor is connected to the second lower swing unit by a coupling, and the second roll gap adjustment device is connected to the screw of the second upper swing unit;

[0008] The first drive motor drives the first upper swing unit and the first lower swing unit to rotate, and the first servo electric cylinder assembly simultaneously drives the first upper swing unit and the first lower swing unit to perform clamping and releasing actions.

[0009] The second drive motor drives the second upper swing unit and the second lower swing unit to rotate, and the second servo electric cylinder assembly simultaneously drives the second upper swing unit and the second lower swing unit to perform clamping and releasing movements;

[0010] The first clamping braking device and the second clamping braking device are two independent devices, which respectively set the roller ring at different positions and correspond to the two channels of the rolling line, and are driven by the first drive motor and the second drive motor respectively.

[0011] Preferably, both the first upper swing unit and the first lower swing unit are two-shaft, two-gear speed-increasing mechanisms. The first upper swing unit includes a first upper input shaft, a first upper input gear, a first upper output shaft, a first upper output gear, and a first upper roller; the first lower swing unit includes a first lower input shaft, a first lower input gear, a first lower output shaft, a first lower output gear, and a first lower roller.

[0012] The first drive motor drives the first lower output shaft via the first lower input shaft, which meshes with the first lower input gear and the first lower output gear. Simultaneously, it drives the first upper input shaft via the first lower input gear and the first upper input gear. The first upper input shaft then drives the first upper output shaft via the first upper input gear and the first upper output gear. The first lower roller and the first upper roller rotate synchronously in opposite directions to clamp and brake the rolled piece.

[0013] Preferably, the first lower input shaft is keyed to the first lower input gear, the first lower output shaft is keyed to the first lower output gear, and the first lower output shaft is keyed to the first lower roller; the first lower input gear and the first lower output gear mesh with each other, and the first lower input gear is a large gear and the first lower output gear is a small gear;

[0014] The first upper input shaft is keyed to the first upper input gear, the first upper output shaft is keyed to the first upper output gear, and the first upper output shaft is keyed to the first upper roller; the first upper input gear and the first upper output gear mesh with each other, and the first upper input gear is a large gear and the first upper output gear is a small gear.

[0015] Preferably, the first upper input gear, the first upper output gear, the first lower input gear, and the first lower output gear are all involute helical gears; the wheelbase between the first lower input shaft and the first upper input shaft is 310mm.

[0016] Preferably, both the second upper swing unit and the second lower swing unit are two-shaft, two-gear speed-increasing mechanisms. The second upper swing unit includes a second upper input shaft, a second upper input gear, a second upper output shaft, a second upper output gear, and a second upper roller; the second lower swing unit includes a second lower input shaft, a second lower input gear, a second lower output shaft, a second lower output gear, and a second lower roller.

[0017] The second drive motor drives the second lower output shaft via the second lower input shaft, which meshes with the second lower input gear and the second lower output gear. Simultaneously, it drives the second upper input shaft via the second lower input gear and the second upper input gear. The second upper input shaft then drives the second upper output shaft via the second upper input gear and the second upper output gear. The second lower roller and the second upper roller rotate synchronously in opposite directions to clamp and brake the rolled piece.

[0018] Preferably, the second lower input shaft is keyed to the second lower input gear, the second lower output shaft is keyed to the second lower output gear, and the second lower output shaft is keyed to the second lower roller; the second lower input gear and the second lower output gear mesh with each other, and the second lower input gear is a large gear and the second lower output gear is a small gear;

[0019] The second upper input shaft is keyed to the second upper input gear, the second upper output shaft is keyed to the second upper output gear, and the second upper output shaft is keyed to the second upper roller; the second upper input gear and the second upper output gear mesh with each other, and the second upper input gear is a large gear and the second upper output gear is a small gear.

[0020] Preferably, the second upper input gear, the second upper output gear, the second lower input gear, and the second lower output gear are all involute helical gears, and the wheelbase between the second lower input shaft and the second upper input shaft is 310mm.

[0021] Preferably, the first self-balancing device includes a pair of meshing sector gears, which are bolted to the first upper swing unit and the first lower swing unit respectively. The first upper swing unit and the first lower swing unit are meshed and oscillate symmetrically with each other.

[0022] The second self-balancing device includes a pair of meshing sector gears, which are bolted to the second upper swing unit and the second lower swing unit respectively. The second upper swing unit and the second lower swing unit are meshed and oscillate symmetrically with each other.

[0023] Preferably, both the first drive motor and the second drive motor are Z4 series DC motors or variable frequency speed control AC motors.

[0024] Preferably, both the first roll gap adjustment device and the second roll gap adjustment device include a screw and a nut, wherein the nut is engaged in the slot of the upper swing unit to limit the swing position of the upper swing unit.

[0025] The present invention provides the following beneficial effects:

[0026] This invention features a simple and compact overall structure with fewer and lighter components in the clamping and braking mechanism, reducing the inertia of the clamping and braking rollers, improving clamping and braking capabilities, and enhancing operational stability and reliability. The upper and lower swing units, driven by servo electric cylinder assemblies, are highly responsive and stable, effectively improving the production efficiency of the rolling production line and enhancing the rolling quality of the workpieces. By adjusting the roll gap adjustment device, it can accommodate workpieces of different specifications.

[0027] This utility model's servo electric cylinder assembly drives the swing unit, enabling precise clamping or braking of the clamping and braking rollers, meeting the speed requirements of ultra-high-speed bar production lines. The two clamping and braking devices are installed in the same housing, effectively reducing equipment size and facilitating production line layout, better meeting the requirements of ultra-high-speed bar production lines. The upper and lower swing units simultaneously function as speed-increasing rotary transmission and clamping / releasing actions. The overall structure is simple and compact, with fewer and lighter components involved in clamping and braking, reducing the inertia of the clamping and braking rollers, improving clamping and braking capabilities, and enhancing operational stability and reliability. The self-balancing device cancels out the weight of the upper and lower swing units, further improving operational stability and achieving symmetrical clamping between them. This ensures the clamping and braking centerline is perfectly aligned with the rolling centerline, improving workpiece quality. Furthermore, the self-balancing device requires no adjustment, reducing adjustment difficulty and effectively improving the production efficiency of the rolling production line.

[0028] Other features and advantages of this invention will be set forth in the following description, and some features will become apparent from the description or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the main body structure of the intelligent clamping brake roller for ultra-high-speed bar stock of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the swing unit under the intelligent clamping brake roller of the ultra-high speed bar stock of this utility model;

[0032] Figure 3 This is a schematic diagram of the oscillating unit on the intelligent clamping brake roller of the ultra-high speed bar stock of this utility model;

[0033] Figure 4 This is a plan view of the structure of the intelligent clamping and braking roller for ultra-high-speed bar stock of this utility model.

[0034] In the attached diagram, the symbols represent the following structures:

[0035] First clamping braking device,

[0036] A1 - First upper swing unit; A2 - First lower swing unit; A3 - First self-balancing device; A4 - First roll gap adjustment device; A5 - First servo electric cylinder assembly; A6 - First lower input shaft; A7 - First lower input gear; A8 - First lower output shaft; A9 - First lower output gear; A10 - First lower roll; A11 - First upper input shaft; A12 - First upper input gear; A13 - First upper output shaft; A14 - First upper output gear; A15 - First upper roll; A16 - First drive motor; A17 - First rolled piece;

[0037] In the second clamping braking device

[0038] B1 - Second upper swing unit; B2 - Second lower swing unit; B3 - Second self-balancing device; B4 - Second roll gap adjustment device; B5 - Second servo electric cylinder assembly; B6 - Second lower input shaft; B7 - Second lower input gear; B8 - Second lower output shaft; B9 - Second lower output gear; B10 - Second lower roll; B11 - Second upper input shaft; B12 - Second upper input gear; B13 - Second upper output shaft; B14 - Second upper output gear; B15 - Second upper roll; B16 - Second drive motor; B17 - Second rolled piece. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] To facilitate understanding of this embodiment, a detailed description of an ultra-high-speed intelligent clamping and braking roller for bar stock disclosed in this utility model embodiment will be provided first, such as... Figures 1-4 As shown, the two-in-one clamping brake device includes a first clamping brake device and a second clamping brake device installed in the same housing; and the first clamping brake device and the second clamping brake device are two independent devices, which respectively set the roller ring at different positions and correspond to the two channels of the rolling line, and are driven by the first drive motor and the second drive motor respectively.

[0041] In this embodiment, the first clamping braking device includes a first upper swing unit A1, a first lower swing unit A2, a first self-balancing device A3, a first roll gap adjustment device A4, a first servo cylinder assembly A5, and a first drive motor A16; the first servo cylinder assembly A5 and the first upper swing unit A1 are connected by a cylindrical pin, and the first upper swing unit A1 is driven to swing by the movement of the servo cylinder push rod; the first roll gap adjustment device A4 is screw-connected to the first upper swing unit A1; the first drive motor A16 is connected to the first lower swing unit A2 through a coupling; the first upper swing unit A1 and the first lower swing unit A2 are connected by the first self-balancing device A3.

[0042] The first drive motor A16 drives the first upper swing unit A1 and the first lower swing unit A2 to rotate. The first servo electric cylinder assembly A5 simultaneously drives the first upper swing unit A1 and the first lower swing unit A2 to move symmetrically to clamp and release the first rolled piece A17. The first upper swing unit A1 and the first lower swing unit A2 driven by the first servo electric cylinder assembly A5 have the characteristics of high responsiveness and high stability.

[0043] Furthermore, both the first upper swing unit A1 and the first lower swing unit A2 are two-shaft, two-gear speed-increasing mechanisms. The first upper swing unit A1 includes a first upper input shaft A11, a first upper input gear A12, a first upper output shaft A13, a first upper output gear A14, and a first upper roller A15; the first lower swing unit A2 includes a first lower input shaft A6, a first lower input gear A7, a first lower output shaft A8, a first lower output gear A9, and a first lower roller A10.

[0044] Furthermore, the first drive motor A16 drives the first lower output shaft A8 via the first lower input shaft A6, which meshes with the first lower output gear A9 through the first lower input gear A7. Simultaneously, it drives the first upper input shaft A11 via the first lower input gear A7, which meshes with the first upper input gear A12. The first upper input shaft A11 then drives the first upper output shaft A13 via the first upper input gear A12, which meshes with the first upper output gear A4. The first lower roller A10 and the first upper roller A15 rotate synchronously in opposite directions to clamp and brake the rolled piece A17.

[0045] Furthermore, the first lower input shaft A6 is keyed to the first lower input gear A7, the first lower output shaft A8 is keyed to the first lower output gear A9, and the first lower output shaft A8 is keyed to the first lower roller A10; the first lower input gear A7 and the first lower output gear A9 mesh with each other, and the first lower input gear A7 is a large gear and the first lower output gear A9 is a small gear, thereby achieving an increase in output speed.

[0046] Furthermore, the first upper input shaft A11 is keyed to the first upper input gear A12, the first upper output shaft A13 is keyed to the first upper output gear A14, and the first upper output shaft A13 is keyed to the first upper roller A15; the first upper input gear A12 and the first upper output gear A14 mesh with each other, and the first upper input gear A12 is a large gear and the first upper output gear A14 is a small gear, thereby achieving an increase in output speed.

[0047] Furthermore, the first self-balancing device A3 includes a pair of meshing sector gears, which are bolted to the first upper swing unit A1 and the first lower swing unit A2 respectively. The first upper swing unit A1 and the first lower swing unit A2 are meshed and connected, and swing symmetrically to each other.

[0048] Furthermore, it can achieve simultaneous movement of the first upper swing unit A1 and the first lower swing unit A2, the first upper roller A15 and the first lower roller A10, and the movement trajectories of the first upper swing unit A1 and the first lower swing unit A2, the first upper roller A15 and the first lower roller A10 are completely symmetrical with respect to the clamping brake center line. It can also achieve self-balancing by canceling out the weights of the first upper swing unit A1 and the first lower swing unit A2, without the need for any balance adjustment.

[0049] In this embodiment, the second clamping braking device includes a second upper swing unit B1, a second lower swing unit B2, a second self-balancing device B3, a second roll gap adjustment device B4, a second servo cylinder assembly B5, and a second drive motor B16; the second servo cylinder assembly B5 and the second upper swing unit B1 are connected by a cylindrical pin, and the second upper swing unit B1 is driven to swing by the movement of the servo cylinder push rod; the second drive motor B16 is connected to the second lower swing unit B2 through a coupling; the second roll gap adjustment device B4 is screw-connected to the second upper swing unit B1; the second upper swing unit B1 and the second lower swing unit B2 are connected by the second self-balancing device B3;

[0050] The second drive motor B16 drives the second upper swing unit B1 and the second lower swing unit B2 to rotate; the second servo electric cylinder assembly B5 simultaneously drives the second upper swing unit B1 and the second lower swing unit B2 to move symmetrically to achieve clamping and releasing of the second rolled piece B17, and the second upper swing unit B1 and the second lower swing unit B2 driven by the second servo electric cylinder assembly B5 have the characteristics of high responsiveness and high stability.

[0051] The second upper swing unit B1 and the second lower swing unit B2 are both two-shaft, two-gear speed-increasing mechanisms. The second upper swing unit B1 includes a second upper input shaft B1, a second upper input gear B12, a second upper output shaft B13, a second upper output gear B14, and a second upper roller B15. The second lower swing unit B2 includes a second lower input shaft B6, a second lower input gear B7, a second lower output shaft B8, a second lower output gear B9, and a second lower roller B10.

[0052] The second drive motor B16 drives the second lower output shaft B8 via the second lower input shaft B6, which meshes with the second lower output gear B9 through the second lower input gear B7. Simultaneously, it drives the second upper input shaft B11 via the second lower input gear B7 and the second upper input gear B12. The second upper input shaft B11 then drives the second upper output shaft B13 via the second upper input gear B12 and the second upper output gear B4. The second lower roller B10 and the second upper roller B15 rotate synchronously in opposite directions to clamp and brake the rolled piece B17.

[0053] The second lower input shaft B6 is keyed to the second lower input gear B7, the second lower output shaft B8 is keyed to the second lower output gear B9, and the second lower output shaft B8 is keyed to the second lower roller B10. The second lower input gear B7 and the second lower output gear B9 mesh with each other, and the second lower input gear B7 is a large gear and the second lower output gear B9 is a small gear, thereby achieving an increase in output speed.

[0054] The second upper input shaft B11 is keyed to the second upper input gear B12, the second upper output shaft B13 is keyed to the second upper output gear B14, and the second upper output shaft B13 is keyed to the second upper roller B15. The second upper input gear B12 and the second upper output gear B14 mesh with each other, and the second upper input gear B12 is a large gear and the second upper output gear B14 is a small gear, thereby achieving an increase in output speed.

[0055] The second self-balancing device B3 includes a pair of meshing sector gears, which are bolted to the second upper swing unit B1 and the second lower swing unit B2 respectively. The second upper swing unit B1 and the second lower swing unit B2 are meshed and oscillate symmetrically with each other.

[0056] The second upper swing unit B1 and the second lower swing unit B2, the second upper roller B15 and the second lower roller B10 can move simultaneously, and the movement trajectories of the second upper swing unit B1 and the second lower swing unit B2, the second upper roller B15 and the second lower roller B10 are completely symmetrical with respect to the clamping brake center line. In addition, the weights of the second upper swing unit B1 and the second lower swing unit B2 can cancel each other out, achieving self-balancing without the need for balance adjustment.

[0057] Furthermore, both the first drive motor A16 and the second drive motor B16 are Z4 series DC motors or variable frequency speed control AC motors to improve the response sensitivity of the device.

[0058] Furthermore, both the first roll gap adjustment device A4 and the second roll gap adjustment device B4 include a screw and a nut. The nuts are respectively inserted into the slots of the first upper swing unit A1 and the second upper swing unit B1. When the screw rotates, the nut moves up and down, restricting the swing position of the first upper swing unit A1 and the second upper swing unit B1, thereby adjusting the output position of the swing unit and the roll gap size to adapt to different specifications of rolled products and improve the production efficiency of the rolling production line.

[0059] Furthermore, the number of teeth of the first upper input gear A12 and the first lower input gear A7, and the number of teeth of the second upper input gear B12 and the second lower input gear B7 are equal, so that the first upper roller A15 and the first lower roller A10, and the second upper roller B15 and the second lower roller B10 rotate at the same speed but in opposite directions.

[0060] Furthermore, the first upper input gear A12, the first upper output gear A14, the first lower input gear A7, the first lower output gear A9, the second upper input gear B12, the second upper output gear B14, the second lower input gear B7, and the second lower output gear B9 are all involute helical gears, used to improve the clamping and braking capabilities of the ultra-high-speed bar intelligent clamping and braking roller; the axial distance between the first lower input shaft A6 and the first upper input shaft A11, and the axial distance between the second lower input shaft B6 and the second upper input shaft B11, or the center distance of the clamping rollers, are all 310mm.

[0061] This invention relates to an ultra-high-speed intelligent clamping and braking roller for bar stock, suitable for clamping and braking sections of rolled products with a cross-section of φ10~φ32mm. The clamping material for the rolled products can be plain carbon steel, high-quality carbon structural steel, low-alloy steel, etc. The clamping speed of the rolled products is ≤40m / s and is adjustable.

[0062] In this utility model, the first clamping braking device and the second clamping braking device are two independent devices, driven by the first transmission motor A16 and the second transmission motor B16 respectively. The first clamping braking device and the second clamping braking device set the roller ring at different positions according to the rolling line requirements, corresponding to the two channels of the rolling line, and simultaneously clamp or brake the rolled parts in the two channels of the rolling line to meet the rolling process requirements.

[0063] In this utility model, the servo electric cylinder assembly includes a lead screw, a lead screw nut, a push rod, and a servo motor. The rotation of the servo motor is converted into the linear motion of the push rod through the lead screw and lead screw nut. The push rod is connected to the upper swing unit through a cylindrical pin and drives the swing unit to perform opening and closing actions.

[0064] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0065] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A super high speed bar intelligent pinch and brake roll based on a two-in-one pinch and brake device, characterized in that, The first pinch roll brake device and the second pinch roll brake device are two independent devices, and the roll rings are arranged at different positions and correspond to two passages of a rolling line, and are respectively driven by the first transmission motor and the second transmission motor. The first pinch roll brake device includes a first upper swing unit, a first lower swing unit, a first self-balancing device, a first roll gap adjusting device, a first servo cylinder assembly, and a first transmission motor; the first servo cylinder assembly and the first upper swing unit are connected by a cylindrical pin shaft; the first upper swing unit and the first lower swing unit are connected by the first self-balancing device; the first transmission motor is connected with the first lower swing unit by a shaft coupling; and the first roll gap adjusting device is screw-connected with the first upper swing unit. The second pinch roll brake device includes a second upper swing unit, a second lower swing unit, a second self-balancing device, a second roll gap adjusting device, a second servo cylinder assembly, and a second transmission motor; the second servo cylinder assembly and the second upper swing unit are connected by a cylindrical pin shaft; the second upper swing unit and the second lower swing unit are connected by the second self-balancing device; the second transmission motor is connected with the second lower swing unit by a shaft coupling; and the second roll gap adjusting device is screw-connected with the second upper swing unit. The first transmission motor drives the first upper swing unit and the first lower swing unit to rotate, and the first servo cylinder assembly simultaneously drives the first upper swing unit and the first lower swing unit to perform clamping and loosening actions. The second transmission motor drives the second upper swing unit and the second lower swing unit to rotate, and the second servo cylinder assembly simultaneously drives the second upper swing unit and the second lower swing unit to perform clamping and loosening actions. The first pinch roll brake device and the second pinch roll brake device are two independent devices, and the roll rings are arranged at different positions and correspond to two passages of a rolling line, and are respectively driven by the first transmission motor and the second transmission motor.

2. The ultra-high speed bar intelligent pinch and brake roller as claimed in claim 1, characterized in that, The first upper swing unit and the first lower swing unit are both two-shaft two-gear speed increasing mechanisms, The first upper swing unit includes a first upper input shaft, a first upper input gear, a first upper output shaft, a first upper output gear, and a first upper roller. The first lower swing unit includes a first lower input shaft, a first lower input gear, a first lower output shaft, a first lower output gear, and a first lower roller. The first transmission motor is engaged with the first lower output gear through the first lower input gear and the first lower input shaft, simultaneously engaged with the first upper input gear through the first lower input gear, engaged with the first upper output gear through the first upper input gear, and engaged with the first upper input shaft through the first upper input gear, so as to drive the first upper output shaft and the first lower roller to rotate in opposite directions to clamp and brake the rolled piece.

3. The ultra-high speed bar intelligent pinch and brake roll as claimed in claim 2, characterized in that, The first lower input shaft, the first lower input gear, the first lower output shaft, the first lower output gear, and the first lower roller are respectively connected by keys; the first lower input gear and the first lower output gear are engaged with each other, the first lower input gear is a large gear, and the first lower output gear is a small gear. The first upper input shaft is connected with the first upper input gear, the first upper output shaft is connected with the first upper output gear, and the first upper output shaft is connected with the first upper roller by a key respectively; the first upper input gear and the first upper output gear are engaged with each other, and the first upper input gear is a large gear and the first upper output gear is a small gear.

4. The super-high-speed rod intelligent pinch and brake roller according to claim 2, characterized in that, The first upper input gear, the first upper output gear, the first lower input gear and the first lower output gear are all involute helical gears. The shaft distance between the first lower input shaft and the first upper input shaft is 310 mm.

5. The ultra-high speed bar intelligent pinch and brake roller as claimed in claim 1, characterized in that, The second upper swing unit and the second lower swing unit are both two-shaft and two-gear speed increasing mechanisms, The second upper swing unit comprises a second upper input shaft, a second upper input gear, a second upper output shaft, a second upper output gear and a second upper roller. The second lower swing unit comprises a second lower input shaft, a second lower input gear, a second lower output shaft, a second lower output gear and a second lower roller. The second transmission motor drives the second lower output shaft through the second lower input shaft, the second lower input gear and the second lower output gear, and drives the second upper input shaft through the second lower input gear and the second upper input gear, and drives the second upper output shaft through the second upper input gear and the second upper output gear, and the second lower roller and the second upper roller rotate synchronously and reversely to pinch and brake the rolled piece.

6. The ultra-high speed bar intelligent pinch and brake roller as claimed in claim 5, characterized in that, The second lower input shaft is connected with the second lower input gear, the second lower output shaft is connected with the second lower output gear, and the second lower output shaft is connected with the second lower roller by a key respectively; the second lower input gear and the second lower output gear are engaged with each other, and the second lower input gear is a large gear and the second lower output gear is a small gear. The second upper input shaft is connected with the second upper input gear, the second upper output shaft is connected with the second upper output gear, and the second upper output shaft is connected with the second upper roller by a key respectively; the second upper input gear and the second upper output gear are engaged with each other, and the second upper input gear is a large gear and the second upper output gear is a small gear.

7. The ultra-high speed bar intelligent pinch and brake roller as claimed in claim 5, characterized in that, The second upper input gear, the second upper output gear, the second lower input gear and the second lower output gear are all involute helical gears.

8. The ultra-high speed rod intelligent pinch and brake roller according to claim 1, characterized in that, The shaft distance between the first lower input shaft and the first upper input shaft is 310 mm. The first self-balancing device comprises a pair of intermeshing sector gears which are bolted with the first upper swing unit and the first lower swing unit respectively, the first upper swing unit and the first lower swing unit are engaged and connected, and symmetrically swing with each other. The second self-balancing device comprises a pair of intermeshing sector gears which are bolted with the second upper swing unit and the second lower swing unit respectively, the second upper swing unit and the second lower swing unit are engaged and connected, and symmetrically swing with each other.

9. The super-high-speed rod intelligent pinch and brake roller according to claim 1, characterized in that, 10. The ultra-high speed rod intelligent pinch and brake roller according to claim 1, characterized in that, The first transmission motor and the second transmission motor are both Z4 series DC motors or variable frequency speed regulation AC motors. It comprises: The first roller gap adjusting device and the second roller gap adjusting device each include a screw rod and a screw nut, the screw nut is clamped into the notch of the upper swing unit, and the swing position of the upper swing unit is limited.

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