Stainless steel multi-roll mill ASU plate shape hydraulic adjusting device

Abstract

The utility model relates to the technical field of rolling, in particular to a stainless steel multi-roll mill ASU plate type hydraulic adjusting device which comprises a rolling mill, a control assembly and a working assembly, the working assembly comprises a plurality of ASU hydraulic cylinders, a rack, a roll shaft, a plurality of eccentric gears, a working roll and a transmission component, the rack is arranged on the rolling mill and makes contact with piston rods of the ASU hydraulic cylinders, and the transmission component is arranged on the roll shaft. The roller shaft is rotationally connected with the rolling mill, the eccentric gear is arranged on the roller shaft and meshed with the rack, the working roller is rotationally connected with the rolling mill and connected with the roller shaft through a transmission component, the rack moves through work of the ASU hydraulic cylinder, and therefore the eccentric gear drives a bearing on the roller shaft to conduct height adjustment. Due to the fact that the roll shaft transmits rolling force to the working roll through the transmission component, the heights of the bearings are different, the rolling force at different positions of the working roll is different, plate shapes at different positions are improved, and the flatness of products is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling, in particular to a hydraulic adjustment device for a plate type of a stainless steel multi-roller rolling mill ASU. Background Art

[0002] At present, cold-rolled stainless steel is mostly rolled using a multi-roll mill. In order to obtain better plate flatness, a set of mechanisms is needed to adjust the plate shape during the rolling process.

[0003] Rolling mills in the prior art generally use bending rolls and grinding radian rolls to obtain a better plate shape.

[0004] However, the bending roller can only improve the shape of the plate at both ends of the strip, but cannot improve the shape of the middle, resulting in poor product flatness. Utility Model Content

[0005] The utility model aims to provide a hydraulic adjustment device for the plate shape of a stainless steel multi-roller rolling mill ASU, aiming to better improve the plate shape in the middle and avoid poor flatness of the product.

[0006] To achieve the above-mentioned purpose, the utility model provides a hydraulic adjustment device for the plate type of a stainless steel multi-roller rolling mill ASU, comprising a rolling mill and a control component.

[0007] Also includes working components,

[0008] The working assembly includes a plurality of ASU hydraulic cylinders, a rack, a roller shaft, a plurality of eccentric gears, a working roller and a transmission member, wherein the ASU hydraulic cylinder is fixedly arranged on the rolling mill and is located on one side of the rolling mill, the rack is arranged on the rolling mill and contacts with a piston rod of the ASU hydraulic cylinder and is located on a side of the rolling mill close to the ASU hydraulic cylinder, the roller shaft is rotationally connected to the rolling mill and is located on a side of the rolling mill close to the rack, the eccentric gear is arranged on the roller shaft and meshes with the rack and is located on the roller shaft close to the roller shaft, the working roller is rotationally connected to the rolling mill and is connected to the roller shaft through the transmission member and is located on a side of the rolling mill close to the roller shaft.

[0009] Wherein, the transmission component includes a first intermediate roller and a second intermediate roller, the first intermediate roller is rotationally connected to the working roller and is located on a side of the working roller close to the roller shaft; the second intermediate roller is rotationally connected to the roller shaft and is rotationally connected to the first intermediate roller, and is located on a side of the roller shaft close to the first intermediate roller.

[0010] Wherein, the transmission component also includes a support roller, which is rotationally connected to the rolling mill and the working roller, and is located on a side of the rolling mill close to the working roller.

[0011] Wherein, the control component includes a displacement sensor and a servo valve, the displacement sensor is arranged on the ASU hydraulic cylinder, electrically connected to the ASU hydraulic cylinder, and located on a side of the ASU hydraulic cylinder close to the rolling mill; the servo valve is fixedly connected to the ASU hydraulic cylinder, electrically connected to the displacement sensor, and located on a side of the ASU hydraulic cylinder close to the displacement sensor.

[0012] Wherein, the control component further includes an accumulator, which is arranged on the ASU hydraulic cylinder, electrically connected to the servo valve, and located on a side of the ASU hydraulic cylinder close to the servo valve.

[0013] The utility model discloses a stainless steel multi-roller mill ASU plate type hydraulic adjustment device. Through the operation of the ASU hydraulic cylinder, the rack is moved, so that the eccentric gear drives the bearing on the roller shaft to adjust the height. Since the roller shaft transmits the rolling force to the working roller through the transmission component, the height of the bearing is different, so that the rolling force at different positions of the working roller is also different, thereby achieving improvement of the plate type at different positions, and then ensuring the flatness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0015] Figure 1 It is a cross-sectional view of the ASU plate type hydraulic adjustment device for a stainless steel multi-roll rolling mill according to the first embodiment of the utility model.

[0016] Figure 2 It is a cross-sectional view of a stainless steel multi-roller rolling mill ASU plate type hydraulic adjustment device according to a second embodiment of the utility model.

[0017] In the figure: 101-rolling mill, 102-ASU hydraulic cylinder, 103-rack, 104-roller shaft, 105-eccentric gear, 106-working roll, 107-first intermediate roll, 108-second intermediate roll, 109-support roll, 201-displacement sensor, 202-servo valve, 203-accumulator. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0019] First embodiment

[0020] See also Figure 1 , Figure 1 It is a cross-sectional view of the ASU plate type hydraulic adjustment device for a stainless steel multi-roll rolling mill according to the first embodiment of the utility model.

[0021] The utility model provides a hydraulic adjustment device for the plate shape of a stainless steel multi-roll mill ASU: comprising a mill 101, a working assembly and a control assembly, wherein the working assembly comprises an ASU hydraulic cylinder 102, a rack 103, a roller shaft 104, an eccentric gear 105, a working roller 106 and a transmission component, wherein the transmission component comprises a first intermediate roller 107, a second intermediate roller 108 and a support roller 109. The above scheme solves the problem that the intermediate plate shape cannot be improved, and it can be understood that the above scheme can be used to ensure the flatness of the product, and can also be used to solve the inaccurate displacement control of the hydraulic cylinder.

[0022] In this embodiment, the rolling mill 101 is installed on the ground.

[0023] The ASU hydraulic cylinder 102 is fixedly arranged on the rolling mill 101 and is located on one side of the rolling mill 101; the rack 103 is arranged on the rolling mill 101 and contacts the piston rod of the ASU hydraulic cylinder 102 and is located on a side of the rolling mill 101 close to the ASU hydraulic cylinder 102; the roller shaft 104 is rotatably connected to the rolling mill 101 and is located on a side of the rolling mill 101 close to the rack 103; the eccentric gear 105 is arranged on the roller shaft 104 and meshes with the rack 103 and is located on the roller shaft 104 close to the roller shaft 104; the working roll 106 is rotatably connected to the rolling mill 101 and is connected to the roller shaft 104 through the transmission member and is located on a side of the rolling mill 101 close to the roller shaft 104. The number of the ASU hydraulic cylinders 102 is seven and they are arranged on the top of the arch of the rolling mill 101. The piston rod of the ASU hydraulic cylinder 102 is connected to the rack 103. The roller shaft 104 is a cylindrical shaft and is rotatably connected to the rolling mill 101 through a bearing. The number of the eccentric gears 105 of the roller shaft 104 and the rolling mill 101 is seven and they are arranged on the outer surface of the roller shaft 104 and mesh with the outside of the rack 103. The working roller 106 is a cylindrical roller. 6 is connected to the roller shaft 104 through the transmission component. The rack 103 is moved by the operation of the ASU hydraulic cylinder 102, so that the eccentric gear 105 drives the bearing on the roller shaft 104 to adjust the height. Since the roller shaft 104 transmits the rolling force to the working roller 106 through the transmission component, the height of the bearing is different, so that the rolling force at different positions of the working roller 106 is also different, thereby achieving improvement of the plate shape at different positions, thereby ensuring the flatness of the product.

[0024] Secondly, the first intermediate roll 107 is rotatably connected to the working roll 106 and is located on the side of the working roll 106 close to the roll shaft 104; the second intermediate roll 108 is rotatably connected to the roll shaft 104 and the first intermediate roll 107 and is located on the side of the roll shaft 104 close to the first intermediate roll 107. The first intermediate roll 107 is arranged above the working roll 106 and drives the working roll 106 to rotate. The second intermediate roll 108 is a cylindrical roll. The second intermediate roll 108 is rotatably connected to the roll shaft 104 and the first intermediate roll 107 respectively and is arranged between the roll shaft 104 and the first intermediate roll 107 to transmit rolling force. Through the transmission effect of the first intermediate roll 107 and the second intermediate roll 108, the rolling force of the roll shaft 104 is transmitted to the working roll 106.

[0025] Again, the support roller 109 is rotatably connected to the rolling mill 101 and the working roll 106, and is located on the side of the rolling mill 101 close to the working roll 106. The support roller 109 is a cylindrical roller, which is rotatably connected to the rolling mill 101 and rotates with the outer surface of the working roll 106, and is arranged below the working roll 106. The working roll 106 is supported by the support function of the support roller 109, so that the working roll 106 is more stable during operation.

[0026] When the ASU plate type hydraulic adjustment device of the stainless steel multi-roll mill of the utility model is used, the rack 103 is moved by the operation of the ASU hydraulic cylinder 102, so that the eccentric gear 105 drives the bearing on the roller shaft 104 to adjust the height. Since the roller shaft 104 transmits the rolling force to the working roller 106 through the first intermediate roller 107 and the second intermediate roller 108, the heights of the bearings are different, so that the rolling forces at different positions of the working roller 106 are also different, thereby achieving improvement of the plate type at different positions, thereby ensuring the flatness of the product.

[0027] Second embodiment

[0028] Figure 2 It is a cross-sectional view of the hydraulic adjustment device for the plate type of a stainless steel multi-roll mill ASU according to the second embodiment of the utility model. Based on the first embodiment, the control component comprises a displacement sensor 201 , a servo valve 202 and an accumulator 203 .

[0029] Among them, the displacement sensor 201 is arranged on the ASU hydraulic cylinder 102, electrically connected to the ASU hydraulic cylinder 102, and located on a side of the ASU hydraulic cylinder 102 close to the rolling mill 101; the servo valve 202 is fixedly connected to the ASU hydraulic cylinder 102, electrically connected to the displacement sensor 201, and located on a side of the ASU hydraulic cylinder 102 close to the displacement sensor 201. There are seven displacement sensors 201, which are respectively arranged on each of the ASU hydraulic cylinders 102. The accuracy of the displacement sensor 201 is 1 micron. The servo valve 202 controls the ASU hydraulic cylinder 102 to work and is electrically connected to the displacement sensor 201. By setting the displacement value of the ASU hydraulic cylinder 102, different currents are given to the servo valve 202 corresponding to the ASU hydraulic cylinder 102. The positions of the valve core openings of the servo valve 202 are different, so that the flow rates reaching the ASU hydraulic cylinder 102 are different, and the movement distances of the ASU hydraulic cylinder 102 are also different. At the same time, the displacement sensor 201 feeds back the actual displacement of the ASU hydraulic cylinder 102 to the servo valve 202 in real time. The servo valve 202 is corrected according to the value of the displacement sensor 201 fed back, so that the ASU hydraulic cylinder 102 can accurately reach the set position, thereby realizing the control of the plate type.

[0030] Secondly, the accumulator 203 is arranged on the ASU hydraulic cylinder 102, and is electrically connected to the servo valve 202, and is located on the side of the ASU hydraulic cylinder 102 close to the servo valve 202. The accumulator 203 is in the shape of a bladder, and is filled with nitrogen. When the external pressure is high, the bladder is deformed by pressure, and the volume of gas decreases as the pressure increases. The excess pressure oil enters the accumulator 203 and is stored. When the external pressure is low, the volume of gas in the bladder increases, and the accumulator 203 discharges the excess hydraulic oil into the system, so that the pressure of the system becomes more, and the pressure increases, thereby achieving the stability of the pressure of the servo valve 202 and improving the control accuracy.

[0031] When using the ASU plate type hydraulic adjustment device for a stainless steel multi-roll mill of the utility model, by setting the displacement value of the ASU hydraulic cylinder 102, different currents are given to the servo valve 202 corresponding to the ASU hydraulic cylinder 102, and the positions of the valve core openings of the servo valve 202 are different, so that the flow rates reaching the ASU hydraulic cylinder 102 are different, and the movement distances of the ASU hydraulic cylinder 102 are also different. At the same time, the displacement sensor 201 feeds back the actual displacement of the ASU hydraulic cylinder 102 to the servo valve 202 in real time, and the servo valve 202 adjusts the displacement according to the feedback. The value of the displacement sensor 201 returned is corrected so that the ASU hydraulic cylinder 102 can accurately reach the set position, thereby realizing the control of the plate type. Through the setting of the accumulator 203, when the external pressure is high, the bladder is compressed and deformed, and the gas volume decreases as the pressure increases. The excess pressure oil enters the accumulator 203 and is stored. When the external pressure is low, the gas volume in the bladder increases, and the accumulator 203 discharges the excess hydraulic oil into the system, making the system pressure more and increasing the pressure, thereby realizing the stability of the pressure of the servo valve 202 and improving the control accuracy.

[0032] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A hydraulic adjustment device for the plate shape of a stainless steel multi-roll mill ASU, comprising a rolling mill and a control component, characterized in that: Also includes working components, The working assembly includes a plurality of ASU hydraulic cylinders, a rack, a roller shaft, a plurality of eccentric gears, a working roller and a transmission member, wherein the ASU hydraulic cylinder is fixedly arranged on the rolling mill and is located on one side of the rolling mill, the rack is arranged on the rolling mill and contacts with a piston rod of the ASU hydraulic cylinder and is located on a side of the rolling mill close to the ASU hydraulic cylinder, the roller shaft is rotationally connected to the rolling mill and is located on a side of the rolling mill close to the rack, the eccentric gear is arranged on the roller shaft and meshes with the rack and is located on the roller shaft close to the roller shaft, the working roller is rotationally connected to the rolling mill and is connected to the roller shaft through the transmission member and is located on a side of the rolling mill close to the roller shaft.

2. The stainless steel multi-roll mill ASU plate type hydraulic adjustment device according to claim 1, characterized in that: The transmission member includes a first intermediate roller and a second intermediate roller, the first intermediate roller is rotationally connected to the working roller and is located on a side of the working roller close to the roller shaft; the second intermediate roller is rotationally connected to the roller shaft and is rotationally connected to the first intermediate roller and is located on a side of the roller shaft close to the first intermediate roller.

3. The hydraulic adjustment device for the plate shape of a stainless steel multi-roll mill ASU according to claim 2, characterized in that: The transmission component also includes a support roller, which is rotatably connected to the rolling mill and the working roll, and is located on a side of the rolling mill close to the working roll.

4. The stainless steel multi-roll mill ASU plate type hydraulic adjustment device according to claim 1, characterized in that: The control component includes a displacement sensor and a servo valve. The displacement sensor is arranged on the ASU hydraulic cylinder, electrically connected to the ASU hydraulic cylinder, and located on a side of the ASU hydraulic cylinder close to the rolling mill. The servo valve is fixedly connected to the ASU hydraulic cylinder, electrically connected to the displacement sensor, and located on a side of the ASU hydraulic cylinder close to the displacement sensor.

5. The stainless steel multi-roll mill ASU plate type hydraulic adjustment device according to claim 4, characterized in that: The control assembly further includes an accumulator, which is disposed on the ASU hydraulic cylinder, electrically connected to the servo valve, and located on a side of the ASU hydraulic cylinder close to the servo valve.

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