CN116900092A - Main transmission system for realizing micro-tension straightening and straightener - Google Patents

Main transmission system for realizing micro-tension straightening and straightener Download PDF

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Publication number
CN116900092A
CN116900092A CN202310922131.4A CN202310922131A CN116900092A CN 116900092 A CN116900092 A CN 116900092A CN 202310922131 A CN202310922131 A CN 202310922131A CN 116900092 A CN116900092 A CN 116900092A
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CN
China
Prior art keywords
straightening
transmission
tension
torque
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310922131.4A
Other languages
Chinese (zh)
Inventor
郭然
韩文
胡典章
王雪梅
胡颖
张智杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MCC Capital Engineering and Research Incorporation Ltd
CERI Technology Co Ltd
Original Assignee
MCC Capital Engineering and Research Incorporation Ltd
CERI Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MCC Capital Engineering and Research Incorporation Ltd, CERI Technology Co Ltd filed Critical MCC Capital Engineering and Research Incorporation Ltd
Priority to CN202310922131.4A priority Critical patent/CN116900092A/en
Publication of CN116900092A publication Critical patent/CN116900092A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Abstract

The application relates to a main transmission system for realizing micro-tension straightening and a straightening machine, wherein the main transmission system for realizing micro-tension straightening comprises a plurality of groups of transmission devices which are mutually independent and are arranged in parallel, each group of transmission devices respectively comprises a variable frequency motor, a safety coupling, a gear reducer and a transmission connecting shaft which are sequentially connected in series, and each transmission connecting shaft is provided with a torque detection device for detecting the working torque of a straightening roller in real time and realizing balanced distribution of the straightening torque through speed compensation; an encoder for straightening speed detection is arranged on the variable frequency motor so as to form a speed closed loop and realize speed compensation in the straightening process; the safety coupling is automatically disengaged when the impact load exceeds a set threshold. The torque detection devices are arranged on the transmission devices of each group, work torque of the straightening rollers is detected in real time, balanced distribution of the straightening torque is achieved through speed compensation, safety couplings are adopted to protect equipment safety of a transmission system, torque distribution is balanced, safety and reliability are achieved, and micro-tension straightening can be achieved.

Description

Main transmission system for realizing micro-tension straightening and straightener
Technical Field
The application relates to the technical field of wide and thick plate straightening machines, in particular to a main transmission system for realizing micro-tension straightening and a straightening machine.
Background
The main transmission system of the traditional wide and thick plate straightener adopts a grouping transmission mode, namely, all straightening rollers are driven by a variable frequency motor through a gear distribution box and a universal coupling, the rotating speeds of all the straightening rollers are kept consistent, but the straightening process generally requires a rule that the rolling reduction is gradually reduced from an inlet to an outlet, and the running speeds of metal materials before and after all the straightening rollers are different due to different reverse bending rates in the straightening process, so that the plate forms a longitudinal pushing state between the rollers under the condition that the plate and the straightening rollers do not slip, and the distribution of the driving torque of the straightening rollers is changed, if a 6 th roller is pushed by a 5 th roller, the 6 th roller does not need to exert force, and the 5 th roller needs to exert force doubly; the 4 th roller needs to push the 5 th roller, so that the 5 th roller can reduce the output force or even does not output force; the thrust provided by roller 3 makes it possible to keep none of the remaining rollers from exerting a force, at least reducing the force exerted. Thus, the 3 rd roller must bear all the force, at least most of the force, so that uneven torque distribution is caused, and even negative torque phenomenon can occur when the torque distribution is serious.
Uneven torque distribution, especially negative torque phenomenon not only can cause unstable equipment operation, but also is a main cause of breakage of straightening rollers, breakage of transmission connecting shafts and damage of gears of a gear box, and is a bottleneck for restricting the improvement of straightening capability.
The main solution to this problem is to change the overall driving into two motor driving, and adopt a conventional speed reducer 7, please refer to fig. 8, and the problem of uneven torque during the dual motor driving is not fundamentally solved because uneven torque distribution still exists between the straightening rollers driven by the same motor although the uneven torque phenomenon is improved during the dual motor driving.
For the problem of torque unbalanced load, a method for straightening a metal material with torque equal to micro-tension is disclosed in the prior art (application number 201010617455. X), and a method for realizing equal torque straightening by adjusting the linear speed of a straightening roller is proposed in the technology, but the patent only proposes a direction of changing the speed of the straightening roller theoretically, does not give a specific implementation form of equipment, and does not propose a basis for how to adjust the linear speed of each straightening roller and adjust the linear speed.
In view of the above problems of the transmission system of the existing wide and thick plate straightener, the inventor combines the practical application of the wide and thick plate straightener to overcome the defects of the prior art in terms of structure, and provides a set of main transmission system and straightener which have the advantages of large transmission torque, balanced torque distribution, safety and reliability and can realize micro-tension straightening.
Disclosure of Invention
The application aims to provide a main transmission system for realizing micro-tension straightening and a straightener, which overcome the problems of uneven torque distribution, easy damage and the like in the prior art.
The application aims at realizing the aim, namely a main transmission system for realizing micro-tension straightening, which comprises a plurality of groups of transmission devices which are mutually independent and are arranged in parallel, wherein each group of transmission devices is respectively connected with a straightening roller to provide rotation torque for the straightening roller; each group of transmission device comprises a variable frequency motor, a safety coupling, a gear reducer and a transmission connecting shaft which are sequentially connected in series, the transmission connecting shafts are connected with the straightening rollers, torque detection devices are arranged on the transmission connecting shafts and are used for detecting working torque of the straightening rollers in real time, and balanced distribution of the straightening torque is realized through speed compensation; an encoder for straightening speed detection is arranged on the variable frequency motor so as to form a speed closed loop and realize speed compensation in the straightening process; the safety coupling is automatically disengaged when the impact load exceeds a set threshold.
In a preferred embodiment of the present application, each of the safety couplings is provided with a state detection device, and the state detection device is used for monitoring the state of the safety coupling in real time to determine the working state of the main transmission system for achieving micro-tension straightening.
In a preferred embodiment of the present application, the gear reducer includes a gear box body, in which a plurality of mutually independent speed reducing mechanisms are arranged, and the number of the speed reducing mechanisms is the same as the number of the straightening rollers; each speed reducing mechanism comprises a speed reducer input shaft and a speed reducer output shaft, the speed reducer input shaft is connected with the safety coupling, and the speed reducer output shaft is connected with the transmission connecting shaft.
In a preferred embodiment of the present application, the transmission shafts of each set of the transmission device are arranged in a double-layer multi-row staggered manner.
In a preferred embodiment of the present application, the transmission shaft includes a first end shaft body and a second end shaft body, and the first end shaft body and the second end shaft body are connected in a universal manner to form an intermediate shaft body; the first end connecting shaft body is connected with the gear reducer, and the second end connecting shaft body is connected with the straightening roller.
In a preferred embodiment of the application, the second end connecting shaft body is provided with a spline pair, and the transmission connecting shaft is connected with the straightening roller through the spline pair.
In a preferred embodiment of the present application, a motor bracket is disposed on a side of the gear reducer away from the transmission shaft, and each variable frequency motor is disposed on the motor bracket.
In a preferred embodiment of the present application, the variable frequency motors of each set of the transmission device are arranged in a double-layer staggered manner.
The aim of the application can be achieved by a straightening machine, which comprises an upper roller system and a lower roller system, wherein a steel plate straightening space is formed between the upper roller system and the lower roller system; the straightening machine further comprises the main transmission system for realizing micro-tension straightening, wherein the main transmission system for realizing micro-tension straightening comprises a plurality of groups of transmission devices which are mutually independent and are arranged in parallel, and each group of transmission devices is respectively connected with the upper roller system or the lower roller system; the upper roller system and the lower roller system respectively comprise a plurality of straightening rollers which are arranged in parallel, and the linear speed of each straightening roller is gradually increased along the advancing direction of the metal material plate so as to straighten the metal material plate under the action of micro tension.
In a preferred embodiment of the application, the upper roll system comprises 4 straightening rolls which are arranged in parallel, and the lower roll system comprises 5 straightening rolls which are arranged in parallel; the main transmission system for realizing micro-tension straightening comprises 9 groups of transmission devices, each group of transmission devices respectively comprises a variable frequency motor, a safety coupler, a gear reducer and a transmission connecting shaft which are sequentially connected in series, and each transmission connecting shaft is respectively connected with one straightening roller.
From the above, the main transmission system and the straightener for realizing micro-tension straightening have the following beneficial effects:
in the application, each group of transmission devices is provided with a torque detection device, the working torque of the straightening roller is detected in real time, the balanced distribution of the straightening torque is realized through speed compensation, and the safety of equipment of a transmission system is protected by adopting a safety coupling; the transmission devices of the transmission system are mutually independent, the straightening speeds of the straightening rollers can be freely set, a certain micro tension is formed between the straightening rollers by reasonably setting the speed difference between the front straightening roller and the rear straightening roller, the linear speed of the straightening rollers is gradually increased along the advancing direction of the metal materials, the torque load distribution of the transmission system is optimized, the torque balance of the straightening rollers is ensured, the straightening of the metal materials under a certain tension state is achieved, and the problem of unbalanced negative torque and torque distribution of concentrated transmission and grouping transmission types is solved.
Drawings
The following drawings are only for purposes of illustration and explanation of the present application and are not intended to limit the scope of the application.
Wherein:
fig. 1: is a front view of the main transmission system for realizing micro-tension straightening.
Fig. 2: a top view of the main drive system of the present application for achieving micro-tension straightening is provided.
Fig. 3: the application relates to a working principle diagram of a main transmission system for realizing micro-tension straightening.
Fig. 4: a front view of the gear reducer of the present application.
Fig. 5: a top view of the gear reducer of the present application.
Fig. 6: is a schematic illustration of the safety coupling of the present application.
Fig. 7: is a schematic diagram of the straightening process of the straightener.
Fig. 8: is a schematic diagram of a traditional main transmission system.
In the figure:
1. a variable frequency motor; 11. an encoder;
2. a safety coupling; 21. a state detection device;
3. a gear reducer; 31. a speed reducer input shaft; 32. an output shaft of the speed reducer;
4. a transmission connecting shaft; 41. a spline pair;
5. straightening rollers; 51. a first straightening roll; 52. a second straightening roll; 53. a third straightening roll; 54. a fourth straightening roller; 55. a fifth straightening roll; 56. a sixth straightening roller; 57. a seventh straightening roll; 58. an eighth straightening roll; 5i, an ith straightening roller;
6. a torque detecting device;
7. a conventional speed reducer;
8. and (3) a steel plate.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present application, a specific embodiment of the present application will be described with reference to the accompanying drawings.
The specific embodiments of the application described herein are for purposes of illustration only and are not to be construed as limiting the application in any way. Given the teachings of the present application, one of ordinary skill in the related art will contemplate any possible modification based on the present application, and such should be considered to be within the scope of the present application. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, may be in communication with each other in two elements, may be directly connected, or may be indirectly connected through an intermediary, and the specific meaning of the terms may be understood by those of ordinary skill in the art in view of the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 6, the present application provides a main transmission system for achieving micro-tension straightening, which comprises a plurality of groups of transmission devices which are mutually independent and are arranged in parallel, wherein each group of transmission devices is respectively connected with a straightening roller to provide rotation torque for the straightening roller; each group of transmission devices respectively comprises a variable frequency motor 1, a safety coupling 2, a gear reducer 3 and a transmission connecting shaft 4 which are sequentially connected in series, the transmission connecting shaft 4 is connected with a straightening roller 5, each transmission connecting shaft 4 is provided with a torque detection device 6 which is used for detecting working torques of the straightening roller 5 and the transmission connecting shaft 4 in real time, and balanced distribution of the straightening torques is realized through speed compensation, so that negative torque and torque unbalanced load are avoided; the output torque of the variable frequency motor 1 is transmitted to the straightening roller 5 through the gear reducer 3 and the transmission connecting shaft 4 to provide power for straightening the steel plate by the straightening roller, and the variable frequency motor 1 is provided with an encoder 11 for detecting the straightening speed so as to form a speed closed loop and realize speed compensation in the straightening process; the safety coupling 2 can be automatically disconnected when the impact load exceeds a set threshold value, the safety of equipment is protected, and the type and the installation position of the safety coupling 2 are not limited by the application.
In the main transmission system for realizing micro-tension straightening, each group of transmission devices is provided with a torque detection device, the working torque of the straightening roller is detected in real time, the balanced distribution of the straightening torque is realized through speed compensation, and the safety of equipment of the transmission system is protected by adopting a safety coupling; the transmission devices of the transmission system are mutually independent, the straightening speeds of the straightening rollers can be freely set, a certain micro tension is formed between the straightening rollers by reasonably setting the speed difference between the front straightening roller and the rear straightening roller, the linear speed of the straightening rollers is gradually increased along the advancing direction of the metal materials, the torque load distribution of the transmission system is optimized, the torque balance of the straightening rollers is ensured, the straightening of the metal materials under a certain tension state is achieved, and the problem of unbalanced negative torque and torque distribution of concentrated transmission and grouping transmission types is solved.
Further, as shown in fig. 6, each safety coupling 2 is provided with a state detection device 21, and the state detection device 21 is used for monitoring the state of the safety coupling in real time to determine whether the working state of the main transmission system for realizing micro-tension straightening is normal.
Further, as shown in fig. 1, 2, 3, 4 and 5, the gear reducer 3 is integrally designed, the gear reducer 3 comprises a gear box body, a plurality of mutually independent speed reducing mechanisms are arranged in the gear box body, and the number of the speed reducing mechanisms is the same as that of the straightening rollers; each reduction mechanism comprises a speed reducer input shaft 31 arranged on the motor side of the gear reducer 3 and a speed reducer output shaft 32 arranged on the straightening roll side of the gear reducer 3, wherein the speed reducer input shaft 31 is connected with the safety coupling 2, and the speed reducer output shaft 32 is connected with the transmission connecting shaft 4. The arrangement form and the position of the output shaft 32 of the speed reducer are in one-to-one correspondence with the position of the straightening roller, so that the working angle of the transmission connecting shaft 4 is effectively reduced.
The gear reducer adopts an integrated design, and a plurality of groups of independent speed reducing mechanisms share the same gear box body, so that the arrangement is compact, the working angle of the transmission connecting shaft is reduced, and the working condition of the transmission connecting shaft is greatly improved.
Further, the transmission connecting shafts 4 of each group of transmission devices are arranged in a double-layer multi-row staggered mode, the minimum transmission connecting shaft specification is adopted, the diameter of the transmission connecting shafts is increased to the maximum extent in a limited space, and the transmission torque is improved.
Further, as shown in fig. 2, the transmission shaft 4 includes a first end shaft body and a second end shaft body, and the first end shaft body and the second end shaft body are connected with each other in a universal manner; the first end connecting shaft body is connected with the gear reducer 3, and the second end connecting shaft body is connected with the straightening roller 5.
The transmission connecting shafts are arranged in an innovative double-layer three-row staggered way, the diameter of the transmission connecting shafts is increased to the greatest extent in a limited space, the transmission torque is improved, and the problems that the transmission connecting shafts of the transmission system of the existing straightener are weak and are frequently broken are solved.
In this embodiment, as shown in fig. 2, a spline pair 41 is provided on the second end joint shaft body, and the transmission joint shaft 4 is connected to the straightening roller 5 through the spline pair 41.
Further, a motor bracket is arranged on one side of the gear reducer 3 far away from the transmission connecting shaft 4, and each variable frequency motor 1 is arranged on the motor bracket.
Further, the variable frequency motors 1 of the driving devices of each group are arranged in a double-layer staggered mode.
The application also provides a straightening machine, which comprises an upper roller system and a lower roller system, wherein a steel plate straightening space is formed between the upper roller system and the lower roller system; the straightening machine further comprises the main transmission system for realizing micro-tension straightening, wherein the main transmission system for realizing micro-tension straightening comprises a plurality of groups of transmission devices which are mutually independent and are arranged in parallel, and each group of transmission devices is respectively connected with the upper roller system or the lower roller system; the upper roller system and the lower roller system respectively comprise a plurality of straightening rollers 5 which are arranged in parallel, the upper roller system and the lower roller system are arranged in an upper row and a lower row, the straightening rollers of the upper roller system and the lower roller system are arranged in a staggered way, the transmission devices of each straightening roller 5 are mutually independent, and the linear speed of each straightening roller 5 is gradually increased along the advancing direction of a metal material plate (steel plate 8) so that the metal material plate is straightened under the action of micro tension.
In one embodiment of the present application, as shown in fig. 7, the upper roll train includes 4 straightening rolls arranged in parallel, and the lower roll train includes 5 straightening rolls arranged in parallel; the main transmission system for realizing micro-tension straightening comprises 9 groups of transmission devices, each group of transmission devices respectively comprises a variable frequency motor 1, a safety coupler 2, a gear reducer 3 and a transmission connecting shaft 4 which are sequentially connected in series, and each transmission connecting shaft 4 is respectively connected with a straightening roller 5.
The main transmission system (main transmission system) for realizing micro-tension straightening can independently set the straightening speed of each group of transmission devices, reasonably set the speed difference between the front straightening roller and the rear straightening roller, gradually increase the linear speed of each straightening roller along the advancing direction of the metal material, optimize the torque load distribution of the main transmission system, ensure the torque balance of each straightening roller, realize that the metal material forms certain 'pulling force' (micro-tension) between each straightening roller, and realize the straightening of the metal material under a certain tension state.
The working process of the straightener adopting the main transmission system for realizing micro-tension straightening comprises the following steps:
referring to fig. 7, an upper roll train including a second straightening roll 52, a fourth straightening roll 54, a sixth straightening roll 56, and an eighth straightening roll 58, and a lower roll train including a first straightening roll 51, a third straightening roll 53, a fifth straightening roll 55, a seventh straightening roll 57, and an i-th straightening roll 5i;
according to the requirements of the straightening process, the reduction amount generally tends to gradually decrease from an inlet to an outlet, so that the running speeds of the metal materials before and after each straightening roller are different, and a longitudinal pushing state is formed between the rollers by the plates, for example, when a 6 th roller is pushed by a 5 th roller, the 6 th roller does not need to exert force, and the 5 th roller needs to doubly exert force, so that the torque distribution is uneven; the degree of non-uniformity of torque distribution is closely related to the magnitude of the difference in the reduction of the inlet/outlet straightening rollers, the thickness H of the steel sheet, and the straightening speed V.
The transmission system for micro-tension straightening is provided with the online torque detection device 6, the accuracy of forecasting straightening torque of an automatic model is optimized according to an actual detection value, the speed of each straightening roller is independently set on the basis of accurately forecasting straightening torque of the automatic model, the speed difference between the front straightening roller and the rear straightening roller is reasonably set, the linear speed of each straightening roller is gradually increased along the advancing direction of a metal material, torque load distribution of a main transmission system is optimized, torque balance of each straightening roller is ensured, certain 'tension' of the metal material between each straightening roller is realized, and straightening of the metal material under a certain tension state is achieved.
From the above, the main transmission system and the straightener for realizing micro-tension straightening have the following beneficial effects:
in the application, each group of transmission devices is provided with a torque detection device, the working torque of the straightening roller is detected in real time, the balanced distribution of the straightening torque is realized through speed compensation, and the safety of equipment of a transmission system is protected by adopting a safety coupling; the transmission devices of the transmission system are mutually independent, the straightening speeds of the straightening rollers can be freely set, a certain micro tension is formed between the straightening rollers by reasonably setting the speed difference between the front straightening roller and the rear straightening roller, the linear speed of the straightening rollers is gradually increased along the advancing direction of the metal materials, the torque load distribution of the transmission system is optimized, the torque balance of the straightening rollers is ensured, the straightening of the metal materials under a certain tension state is achieved, and the problem of unbalanced negative torque and torque distribution of concentrated transmission and grouping transmission types is solved.
The foregoing is illustrative of the present application and is not to be construed as limiting the scope of the application. Any equivalent changes and modifications can be made by those skilled in the art without departing from the spirit and principles of this application, and are intended to be within the scope of this application.

Claims (10)

1. The main transmission system for realizing micro-tension straightening is characterized by comprising a plurality of groups of transmission devices which are mutually independent and are arranged in parallel, wherein each group of transmission devices is respectively connected with a straightening roller to provide rotating torque for the straightening roller; each group of transmission device comprises a variable frequency motor, a safety coupling, a gear reducer and a transmission connecting shaft which are sequentially connected in series, the transmission connecting shafts are connected with the straightening rollers, torque detection devices are arranged on the transmission connecting shafts and are used for detecting working torque of the straightening rollers in real time, and balanced distribution of the straightening torque is realized through speed compensation; an encoder for straightening speed detection is arranged on the variable frequency motor so as to form a speed closed loop and realize speed compensation in the straightening process; the safety coupling is automatically disengaged when the impact load exceeds a set threshold.
2. The main transmission system for realizing micro-tension straightening according to claim 1, wherein each safety coupling is provided with a state detection device, and the state detection device is used for monitoring the state of the safety coupling in real time to judge the working state of the main transmission system for realizing micro-tension straightening.
3. The main transmission system for realizing micro-tension straightening according to claim 1, wherein the gear reducer comprises a gear box body, a plurality of mutually independent speed reducing mechanisms are arranged in the gear box body, and the number of the speed reducing mechanisms is the same as that of the straightening rollers; each speed reducing mechanism comprises a speed reducer input shaft and a speed reducer output shaft, the speed reducer input shaft is connected with the safety coupling, and the speed reducer output shaft is connected with the transmission connecting shaft.
4. The main transmission system for realizing micro-tension straightening according to claim 1, wherein the transmission connecting shafts of the transmission devices of each group are arranged in a double-layer multi-row staggered mode.
5. The main drive system for achieving micro-tension straightening according to claim 4, wherein the drive coupling comprises a first end coupling body and a second end coupling body, and wherein the first end coupling body and the second end coupling body are connected with each other in a universal manner; the first end connecting shaft body is connected with the gear reducer, and the second end connecting shaft body is connected with the straightening roller.
6. The main transmission system for realizing micro-tension straightening according to claim 5, wherein a spline pair is arranged on the second end connecting shaft body, and the transmission connecting shaft is connected with the straightening roller through the spline pair.
7. The main transmission system for achieving micro-tension straightening according to claim 1, wherein a motor bracket is arranged on one side, far away from the transmission connecting shaft, of the gear reducer, and each variable frequency motor is arranged on the motor bracket.
8. The main transmission system for realizing micro-tension straightening according to claim 7, wherein the variable frequency motors of each group of the transmission devices are arranged in a double-layer staggered manner.
9. The straightening machine is characterized by comprising an upper roller system and a lower roller system, wherein a steel plate straightening space is formed between the upper roller system and the lower roller system; the straightening machine further comprises a main transmission system for realizing micro-tension straightening according to any one of claims 1 to 8, wherein the main transmission system for realizing micro-tension straightening comprises a plurality of groups of transmission devices which are mutually independent and are arranged in parallel, and each group of transmission devices is respectively connected with the upper roller system or the lower roller system; the upper roller system and the lower roller system respectively comprise a plurality of straightening rollers which are arranged in parallel, and the linear speed of each straightening roller is gradually increased along the advancing direction of the metal material plate so as to straighten the metal material plate under the action of micro tension.
10. The leveler of claim 9 wherein the upper roll train includes 4 leveling rolls arranged in parallel and the lower roll train includes 5 leveling rolls arranged in parallel; the main transmission system for realizing micro-tension straightening comprises 9 groups of transmission devices, each group of transmission devices respectively comprises a variable frequency motor, a safety coupler, a gear reducer and a transmission connecting shaft which are sequentially connected in series, and each transmission connecting shaft is respectively connected with one straightening roller.
CN202310922131.4A 2023-07-25 2023-07-25 Main transmission system for realizing micro-tension straightening and straightener Pending CN116900092A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310922131.4A CN116900092A (en) 2023-07-25 2023-07-25 Main transmission system for realizing micro-tension straightening and straightener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310922131.4A CN116900092A (en) 2023-07-25 2023-07-25 Main transmission system for realizing micro-tension straightening and straightener

Publications (1)

Publication Number Publication Date
CN116900092A true CN116900092A (en) 2023-10-20

Family

ID=88360038

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310922131.4A Pending CN116900092A (en) 2023-07-25 2023-07-25 Main transmission system for realizing micro-tension straightening and straightener

Country Status (1)

Country Link
CN (1) CN116900092A (en)

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