A dynamic balance monitoring device for rollers

Abstract

The present invention discloses a dynamic balance monitoring device for a rolling mill, comprising a bottom plate, a gantry frame arranged on the top of the bottom plate, and a conveying plate, which is used to convey metal plates to be processed. The present invention relates to the field of rolling mill monitoring technology; when the rolling mill rotates, the rolling mill can be firmly clamped by the cooperation of a second electric telescopic rod, an adhesive soft brush, a driving motor, a hydraulic oil storage box, an electric oil extraction telescopic pipe, a rotating shaft, a mounting rod, a nut, a bolt, a hydraulic nut and a pressure sensor, and the internal pressure of the hydraulic nut can be monitored in real time. If the pressure is unstable, it can be automatically adjusted to reduce the vibration amplitude of the rolling mill, and the dust on the surface of the hydraulic nut can be adhered to avoid the adverse effects of excessive dust on the surface of the hydraulic nut. The cooperation of the electric push rod and the friction ring can quickly stop the rotation of the rotating shaft after the driving motor stops working, so as to prevent the rolling mill from falling off and causing safety accidents.

Description

Technical Field

[0001] The invention relates to the technical field of roller monitoring, in particular to a dynamic balance monitoring device for a roller. Background Art

[0002] With the rapid development of my country's economy, the steel industry has also developed rapidly. The steel industry has an increasing demand for steel products and has more stringent requirements for product quality. This requires enterprises to continuously explore and innovate, reduce the probability of machine failures, and improve equipment production efficiency to adapt to the new environment of economic globalization. As a machine for rolling steel, a rolling mill causes the rolled piece to undergo plastic deformation between the rotating rollers to roll out steel with the required cross-sectional shape and size. In rolling mill equipment, bearings are one of the most commonly used components. The stability of the roller bearing operation will directly affect the production efficiency of the rolling mill, and also affect the quality of rolled steel products, thereby increasing production costs.

[0003] The structure of the existing dynamic balancing monitoring equipment for rolling mill rolls is relatively simple. When the equipment is used to monitor the balance of the rolling mill rolls and a problem is found, the entire equipment needs to be shut down and then manually adjusted by the staff, which affects the production efficiency of the device. As the working time of the rolling mill rolls increases, the hydraulic nuts may become loose. If they are to be monitored, the device needs to be shut down and then tested.

[0004] To this end, the present invention provides a dynamic balance monitoring device for a rolling mill roll to solve the above-mentioned problem. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a dynamic balance monitoring device for a rolling mill roll, which solves the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A dynamic balance monitoring device for a rolling mill, comprising:

[0007] A base plate, and a gantry disposed on the top of the base plate;

[0008] A conveying plate, which is used to convey the metal plates to be processed;

[0009] A production mechanism, the production mechanism is used to process the transported monitoring plates;

[0010] A nut monitoring mechanism, which is used to monitor and fix the nut clamping the roll;

[0011] A balance monitoring mechanism, which is used to monitor the rollers in a working state;

[0012] The top of the bottom plate is fixedly connected to the bottom of the gantry, the side wall of the conveying plate is slidably connected to the inner wall of the bottom plate, the top of the inner wall of the gantry is fixedly connected to a production mechanism, one side of the production mechanism is fixedly connected to one side of the nut monitoring mechanism, the top of the balance monitoring mechanism is fixedly connected to the top of the inner wall of the gantry, and the bottom of the balance monitoring mechanism is slidably connected to the top of the production mechanism;

[0013] The production organization includes

[0014] A fixed block, and a hydraulic cylinder arranged at the bottom of the fixed block;

[0015] A hydraulic rod, and a hydraulic oil storage tank disposed at the bottom of the hydraulic rod;

[0016] A driving motor, and a rotating shaft arranged on one side of the driving motor;

[0017] A mounting rod, and a roller arranged on one side of the mounting rod;

[0018] The side wall of the fixed block is fixedly connected to the inner wall of the gantry, the bottom of the fixed block is fixedly connected to the bottom of the hydraulic cylinder, the hydraulic cylinder is fixedly connected to the driving motor through the output end, the bottom of the hydraulic rod is fixedly connected to the top of the hydraulic oil storage tank, one side of the hydraulic oil storage tank is slidingly connected to the inner wall of the gantry, one side of the hydraulic oil storage tank is fixedly connected to one side of the driving motor, the driving motor is fixedly connected to the rotating shaft through the output end, one side of the mounting rod corresponds to one side of the rotating shaft, and the side of the mounting rod away from the rotating shaft is fixedly connected to the side wall of the roller.

[0019] Preferably, the production mechanism further comprises a nut, the side of the rotating shaft close to the driving motor is slidably connected to one side of the nut, and the inner wall of the nut is threadedly connected with a bolt.

[0020] Preferably, the nut side wall passes through the rotating shaft, and the side edge of the nut is threadedly connected to the inner wall of the rotating shaft, and the nut side wall passes through the mounting rod, and the nut side wall is threadedly connected to the inner wall of the mounting rod.

[0021] Preferably: the nut monitoring mechanism includes an electric push rod, the side of the drive motor close to the rotating shaft is fixedly connected to the side of the electric push rod away from the rotating shaft, the end of the electric push rod away from the drive motor is fixedly connected to a friction ring, the bottom of the hydraulic oil storage tank is connected to an electric oil extraction telescopic pipe, the side wall of the nut is fixedly connected to a hydraulic nut, the side of the hydraulic nut close to the drive motor is connected to an oil inlet pipe, a pressure chamber is opened on the inner wall of the hydraulic nut, and a pressure sensor is fixedly connected to the inner wall of the pressure chamber.

[0022] Preferably, the inner wall of the electric oil extraction telescopic tube is slidably connected to the side wall of the oil inlet pipe, and the side of the friction ring away from the drive motor is slidably connected to the side of the rotating shaft close to the drive motor.

[0023] Preferably: the balance monitoring mechanism includes an electric slide rail, the top of the inner wall of the gantry is fixedly connected to the electric slide rail, the electric slide rail is slidably connected to a sliding plate through an electronic slider, the bottom of the sliding plate is fixedly connected to a dustproof soft plate, the bottom of the dustproof soft plate is fixedly connected to a support plate, the top of the support plate is fixedly connected to a dial indicator, the top of the support plate is fixedly connected to a first electric telescopic rod, the bottom of the sliding plate is fixedly connected to a monitoring data analysis device, the bottom of the sliding plate is fixedly connected to a second electric telescopic rod, and the bottom of the second electric telescopic rod is fixedly connected to an adhesion soft brush.

[0024] Preferably, the top of the first electric telescopic rod is fixedly connected to the bottom of the sliding plate, the bottom of the adhesive soft brush is slidably connected to the top of the roller, and the bottom of the adhesive soft brush is fixedly connected to the top of the hydraulic nut. Beneficial Effects

[0025] The present invention provides a dynamic balance monitoring device for a roller. Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) The dynamic balance monitoring device of the rolling mill roll can monitor the balance of the rolling mill roll when the rolling mill rolls rotate to process metal materials through the cooperation of the hydraulic nut, hydraulic cylinder, hydraulic rod, hydraulic oil storage box, electric slide rail, sliding plate, first electric telescopic rod, support plate, dial indicator, second electric telescopic rod, monitoring data analysis device and adhesion soft brush. If the balance is unstable, it can be adjusted. In addition, the dust on the surface of the rolling mill roll can be cleaned to avoid affecting the data collected by the dial indicator.

[0027] (2) The dynamic balance monitoring device of the rolling mill roll can firmly clamp the rolling mill roll when the rolling mill rolls, through the cooperation of the second electric telescopic rod, the adhesive soft brush, the driving motor, the hydraulic oil storage box, the electric oil extraction telescopic tube, the rotating shaft, the mounting rod, the nut, the bolt, the hydraulic nut and the pressure sensor. At the same time, the internal pressure of the hydraulic nut can be monitored in real time. If the pressure is unstable, it can be automatically adjusted to reduce the vibration amplitude of the rolling mill roll. The dust on the surface of the hydraulic nut can be adhered to avoid the adverse effect of excessive dust on the surface of the hydraulic nut. The electric push rod and the friction ring can quickly stop the rotation of the rotating shaft after the driving motor stops working, so as to prevent the rolling mill roll from falling off and causing safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the dynamic balance monitoring device of the rolling mill roll of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the production mechanism of the present invention;

[0030] Figure 3It is a structural schematic diagram of the nut monitoring mechanism of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the balance monitoring mechanism of the present invention;

[0032] Figure 5 It is a schematic diagram of the position structure of the dial indicator of the present invention.

[0033] In the figure: 1. base plate; 2. gantry; 3. conveying plate; 4. production mechanism; 5. nut monitoring mechanism; 6. balance monitoring mechanism; 40. fixed block; 41. hydraulic cylinder; 42. hydraulic rod; 43. hydraulic oil storage box; 44. driving motor; 45. rotating shaft; 46. mounting rod; 47. roller; 48. nut; 49. bolt; 50. electric oil extraction telescopic pipe; 51. hydraulic nut; 52. oil inlet pipe; 53. pressure chamber; 54. pressure sensor; 55. electric push rod; 56. friction ring; 60. electric slide rail; 61. sliding plate; 62. dustproof soft plate; 63. first electric telescopic rod; 64. support plate; 65. dial indicator; 66. second electric telescopic rod; 67. monitoring data analysis equipment; 68. adhesion soft brush. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0035] See also Figure 1-Figure 2 , a dynamic balance monitoring device for a rolling mill roll, comprising:

[0036] A base plate 1, and a gantry 2 arranged on the top of the base plate 1;

[0037] The conveying plate 3 is used to convey the metal plates to be processed;

[0038] Production mechanism 4, the production mechanism 4 is used to process the conveyed monitoring plate;

[0039] A nut monitoring mechanism 5, which is used to monitor and fix the nut clamping the roll;

[0040] A balance monitoring mechanism 6, which is used to monitor the rollers in a working state;

[0041] The top of the bottom plate 1 is fixedly connected to the bottom of the gantry 2, the side wall of the conveying plate 3 is slidably connected to the inner wall of the bottom plate 1, the top of the inner wall of the gantry 2 is fixedly connected to the production mechanism 4, one side of the production mechanism 4 is fixedly connected to one side of the nut monitoring mechanism 5, the top of the balance monitoring mechanism 6 is fixedly connected to the top of the inner wall of the gantry 2, and the bottom of the balance monitoring mechanism 6 is slidably connected to the top of the production mechanism 4;

[0042] Among them, production organization 4 includes

[0043] A fixed block 40, and a hydraulic cylinder 41 disposed at the bottom of the fixed block 40;

[0044] A hydraulic rod 42, and a hydraulic oil storage tank 43 disposed at the bottom of the hydraulic rod 42;

[0045] A driving motor 44, and a rotating shaft 45 disposed on one side of the driving motor 44;

[0046] A mounting rod 46, and a roller 47 disposed on one side of the mounting rod 46;

[0047] The side wall of the fixed block 40 is fixedly connected to the inner wall of the gantry 2, the bottom of the fixed block 40 is fixedly connected to the bottom of the hydraulic cylinder 41, the hydraulic cylinder 41 is fixedly connected to the driving motor 44 through the output end, the bottom of the hydraulic rod 42 is fixedly connected to the top of the hydraulic oil storage box 43, one side of the hydraulic oil storage box 43 is slidably connected to the inner wall of the gantry 2, one side of the hydraulic oil storage box 43 is fixedly connected to one side of the driving motor 44, the driving motor 44 is fixedly connected to the rotating shaft 45 through the output end, one side of the mounting rod 46 corresponds to one side of the rotating shaft 45, and the side of the mounting rod 46 away from the rotating shaft 45 is fixedly connected to the side wall of the roller 47;

[0048] The production mechanism 4 also includes a nut 48, a side of the rotating shaft 45 close to the driving motor 44 is slidably connected to a side of the nut 48, a bolt 49 is threadedly connected to the inner wall of the nut 48, a side wall of the nut 48 passes through the rotating shaft 45, and the side wall of the nut 48 is threadedly connected to the inner wall of the rotating shaft 45, and the side wall of the nut 48 passes through the mounting rod 46, and the side wall of the nut 48 is threadedly connected to the inner wall of the mounting rod 46;

[0049] It should be noted that the staff places the metal material to be processed on the conveying plate 3, the conveying plate 3 drives the metal sheet to the bottom of the roller 47, and starts the driving motor 44 to drive the roller 47 to rotate to process the bottom metal sheet. The specific method is that the driving motor 44 drives the rotating shaft 45 to rotate, the rotating shaft 45 drives the mounting rod 46 to rotate through the nut 48 and the bolt 49, and the mounting rod 46 drives the roller 47 to rotate to process the metal sheet. Example 2

[0050] See also Figure 3, this embodiment provides a technical solution based on the first embodiment: the nut monitoring mechanism 5 includes an electric push rod 55, the side of the drive motor 44 close to the rotating shaft 45 is fixedly connected to the side of the electric push rod 55 away from the rotating shaft 45, the end of the electric push rod 55 away from the drive motor 44 is fixedly connected to a friction ring 56, the bottom of the hydraulic oil storage box 43 is connected to an electric oil pumping telescopic pipe 50, the side wall of the nut 48 is fixedly connected to a hydraulic nut 51, the side of the hydraulic nut 51 close to the drive motor 44 is connected to an oil inlet pipe 52, a pressure chamber 53 is opened on the inner wall of the hydraulic nut 51, and a pressure sensor 54 is fixedly connected to the inner wall of the pressure chamber 53, the inner wall of the electric oil pumping telescopic pipe 50 is slidably connected to the side wall of the oil inlet pipe 52, and the friction ring 56 is slidably connected to the side of the rotating shaft 45 close to the drive motor 44;

[0051] It should be noted that when the roller 47 rotates, the pressure sensor 54 monitors the internal pressure of the pressure chamber 53 at all times and transmits the data to the monitoring data analysis device 67. The monitoring data analysis device 67 compares the collected data with the set data. If an error occurs, the drive motor 44 is turned off and the electric push rod 55 is started. The electric push rod 55 drives the friction ring 56 to extend until it contacts the side wall of the rotating shaft 45 to prevent the rotating shaft 45 from continuing to rotate, so that the roller 47 can stop rotating in the shortest time, and the electric oil pumping telescopic pipe 50 is started to input the hydraulic oil in the hydraulic oil storage box 43 into the pressure chamber 53 until the pressure in the pressure chamber 53 returns to normal. The drive motor 44 drives the roller 47 to work again to avoid the unstable internal pressure of the hydraulic nut 51 affecting the clamping of the rotating shaft 45 on the mounting rod 46, causing the roller 47 to fall off early and cause a safety accident. Example 3

[0052] See also Figure 4-Figure 5 , this embodiment provides a technical solution based on the first embodiment: the balance monitoring mechanism 6 includes an electric slide rail 60, the electric slide rail 60 is fixedly connected to the top of the inner wall of the gantry 2, the electric slide rail 60 is slidably connected to the sliding plate 61 through the electronic slider, the bottom of the sliding plate 61 is fixedly connected to the dustproof soft plate 62, the bottom of the dustproof soft plate 62 is fixedly connected to the support plate 64, the top of the support plate 64 is fixedly connected to the dial indicator 65, the top of the support plate 64 is fixedly connected to the first electric telescopic rod 63, the bottom of the sliding plate 61 is fixedly connected to the monitoring data analysis device 67, the bottom of the sliding plate 61 is fixedly connected to the second electric telescopic rod 66, the bottom of the second electric telescopic rod 66 is fixedly connected to the adhesion soft brush 68, the top of the first electric telescopic rod 63 is fixedly connected to the bottom of the sliding plate 61, the bottom of the adhesion soft brush 68 is slidably connected to the top of the roller 47, and the bottom of the adhesion soft brush 68 is fixedly connected to the top of the hydraulic nut 51;

[0053] It should be noted that when the roller 47 is processing the metal sheet, the electric slide rail 60 is started to drive the dial indicator 65 to monitor the balance of the roller 47 during operation. The specific method is that the electric slide rail 60 drives the sliding plate 61 to move, the sliding plate 61 drives the first electric telescopic rod 63 to move, the first electric telescopic rod 63 drives the support plate 64 to move, and the support plate 64 drives the dial indicator 65 to reciprocate on the surface of the roller 47. The first electric telescopic rod 63 drives the dial indicator 65 to press down through the support plate 64 until the bottom of the dial indicator 65 contacts the top of the roller 47. The amplitude and balance of the roller 47 during rotation are collected and transmitted to the monitoring data analysis equipment. 67, the monitoring data analysis device 67 analyzes and calculates the data and compares it with the set data. If there is a small error, the electric slide 60 is closed to stop the dial indicator 65 from moving, and the place with the error is monitored for a long time and the hydraulic cylinder 41 on one side is started to fine-tune the roller 47 until the analysis data of the monitoring data analysis device 67 is consistent with the set data. The electric slide 60 continues to drive the dial indicator 65 to monitor the roller 47. When the sliding plate 61 moves, the second electric telescopic rod 66 drives the adhesion soft brush 68 to press down on the dust on the surface of the roller 47 and the surface of the hydraulic nut 51 to adhere to it, so as to prevent dust from affecting the monitoring data of the roller 47 by the dial indicator 65.

[0054] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0055] During operation, the worker places the metal material to be processed on the conveying plate 3, and the conveying plate 3 drives the metal sheet to be transported to the bottom of the roller 47, and starts the driving motor 44 to drive the roller 47 to rotate to process the bottom metal sheet. The specific method is that the driving motor 44 drives the rotating shaft 45 to rotate, and the rotating shaft 45 drives the mounting rod 46 to rotate through the nut 48 and the bolt 49, and the mounting rod 46 drives the roller 47 to rotate to process the metal sheet.

[0056] When the roller 47 is processing the metal sheet, the electric slide rail 60 is started to drive the dial indicator 65 to monitor the balance of the roller 47 during operation. Specifically, the electric slide rail 60 drives the sliding plate 61 to move, the sliding plate 61 drives the first electric telescopic rod 63 to move, the first electric telescopic rod 63 drives the support plate 64 to move, and the support plate 64 drives the dial indicator 65 to reciprocate on the surface of the roller 47. The first electric telescopic rod 63 drives the dial indicator 65 to press down through the support plate 64 until the bottom of the dial indicator 65 contacts the top of the roller 47. The amplitude and balance of the roller 47 during rotation are collected and transmitted to the monitoring data analysis device 67. The monitoring data analysis device 67 analyzes and calculates the data and compares it with the set data. If there is a small error, the electric slide rail 60 is closed to stop the dial indicator 65 from moving. The error area is monitored for a long time and the hydraulic cylinder 41 on one side is started to fine-tune the roller 47 until the analysis data of the monitoring data analysis device 67 is consistent with the set data. The electric slide rail 60 continues to drive the dial indicator 65 to monitor the roller 47. When the sliding plate 61 moves, the second electric telescopic rod 66 drives the adhesion soft brush 68 to press down on the dust on the surface of the roller 47 and the surface of the hydraulic nut 51 to adhere to it, so as to prevent the dust from affecting the monitoring data of the roller 47 by the dial indicator 65;

[0057] When the roller 47 rotates, the pressure sensor 54 monitors the internal pressure of the pressure chamber 53 at all times and transmits the data to the monitoring data analysis device 67. The monitoring data analysis device 67 compares the collected data with the set data. If an error occurs, the drive motor 44 is turned off and the electric push rod 55 is started. The electric push rod 55 drives the friction ring 56 to extend until it contacts the side wall of the rotating shaft 45 to prevent the rotating shaft 45 from continuing to rotate, so that the roller 47 can stop rotating in the shortest time, and the electric oil pumping telescopic pipe 50 is started to input the hydraulic oil in the hydraulic oil storage box 43 into the pressure chamber 53 until the pressure in the pressure chamber 53 returns to normal. The drive motor 44 drives the roller 47 to work again to avoid the unstable internal pressure of the hydraulic nut 51 affecting the clamping of the rotating shaft 45 on the mounting rod 46, causing the roller 47 to fall off early and cause a safety accident.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dynamic balance monitoring device for a rolling mill, characterized in that: include: A base plate (1), and a gantry (2) arranged on the top of the base plate (1); A conveying plate (3), the conveying plate (3) being used to convey metal plates to be processed; A production mechanism (4), the production mechanism (4) is used to process the transported monitoring plate; A nut monitoring mechanism (5), the nut monitoring mechanism (5) being used to monitor and fix the nut clamping the rolling roller; A balance monitoring mechanism (6), the balance monitoring mechanism (6) being used to monitor the roller in a working state; The top of the bottom plate (1) is fixedly connected to the bottom of the gantry (2), the side wall of the conveying plate (3) is slidably connected to the inner wall of the bottom plate (1), the top of the inner wall of the gantry (2) is fixedly connected to a production mechanism (4), one side of the production mechanism (4) is fixedly connected to one side of a nut monitoring mechanism (5), the top of the balance monitoring mechanism (6) is fixedly connected to the top of the inner wall of the gantry (2), and the bottom of the balance monitoring mechanism (6) is slidably connected to the top of the production mechanism (4); Wherein, the production mechanism (4) comprises A fixed block (40), and a hydraulic cylinder (41) arranged at the bottom of the fixed block (40); A hydraulic rod (42), and a hydraulic oil storage tank (43) arranged at the bottom of the hydraulic rod (42); A driving motor (44), and a rotating shaft (45) arranged on one side of the driving motor (44); A mounting rod (46), and a roller (47) arranged on one side of the mounting rod (46); The side wall of the fixed block (40) is fixedly connected to the inner wall of the gantry (2), the bottom of the fixed block (40) is fixedly connected to the bottom of the hydraulic cylinder (41), the hydraulic cylinder (41) is fixedly connected to the drive motor (44) via the output end, the bottom of the hydraulic rod (42) is fixedly connected to the top of the hydraulic oil storage box (43), one side of the hydraulic oil storage box (43) is slidably connected to the inner wall of the gantry (2), one side of the hydraulic oil storage box (43) is fixedly connected to one side of the drive motor (44), the drive motor (44) is fixedly connected to the rotating shaft (45) via the output end, one side of the mounting rod (46) corresponds to one side of the rotating shaft (45), and the side of the mounting rod (46) away from the rotating shaft (45) is fixedly connected to the side wall of the roller (47); The production mechanism (4) further comprises a nut (48), a side of the rotating shaft (45) close to the driving motor (44) is slidably connected to a side of the nut (48), and a bolt (49) is threadedly connected to an inner wall of the nut (48); The side wall of the nut (48) passes through the rotating shaft (45), and the side edge of the nut (48) is threadedly connected to the inner wall of the rotating shaft (45); the side wall of the nut (48) passes through the mounting rod (46), and the side wall of the nut (48) is threadedly connected to the inner wall of the mounting rod (46); The nut monitoring mechanism (5) comprises an electric push rod (55), a side of the drive motor (44) close to the rotating shaft (45) is fixedly connected to a side of the electric push rod (55) away from the rotating shaft (45), an end of the electric push rod (55) away from the drive motor (44) is fixedly connected to a friction ring (56), the bottom of the hydraulic oil storage box (43) is connected to an electric oil extraction telescopic pipe (50), a side wall of the nut (48) is fixedly connected to a hydraulic nut (51), a side of the hydraulic nut (51) close to the drive motor (44) is connected to an oil inlet pipe (52), a pressure chamber (53) is provided on the inner wall of the hydraulic nut (51), and a pressure sensor (54) is fixedly connected to the inner wall of the pressure chamber (53); The inner wall of the electric oil extraction telescopic tube (50) is slidably connected to the side wall of the oil inlet tube (52), and the side of the friction ring (56) away from the drive motor (44) is slidably connected to the side of the rotating shaft (45) close to the drive motor (44).

2. The dynamic balance monitoring device for a rolling mill according to claim 1, characterized in that: The balance monitoring mechanism (6) comprises an electric slide rail (60), the top of the inner wall of the gantry (2) is fixedly connected to the electric slide rail (60), the electric slide rail (60) is slidably connected to a sliding plate (61) via an electronic slider, the bottom of the sliding plate (61) is fixedly connected to a dustproof soft plate (62), the bottom of the dustproof soft plate (62) is fixedly connected to a support plate (64), the top of the support plate (64) is fixedly connected to a dial indicator (65), the top of the support plate (64) is fixedly connected to a first electric telescopic rod (63), the bottom of the sliding plate (61) is fixedly connected to a monitoring data analysis device (67), the bottom of the sliding plate (61) is fixedly connected to a second electric telescopic rod (66), and the bottom of the second electric telescopic rod (66) is fixedly connected to an adhesive soft brush (68).

3. The dynamic balance monitoring device for a rolling mill according to claim 2, characterized in that: The top of the first electric telescopic rod (63) is fixedly connected to the bottom of the sliding plate (61), the bottom of the adhesive soft brush (68) is slidably connected to the top of the roller (47), and the bottom of the adhesive soft brush (68) is fixedly connected to the top of the hydraulic nut (51).

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