A quick adjusting device for parallelism of rolling mill rolls

Abstract

This invention relates to the field of rolling mill technology, specifically to a rapid adjustment device for the parallelism of rolling mill rolls. The device includes a base plate, a vertical plate, and a main drive mechanism. The output end of the main drive mechanism is meshed with upper and lower distributed work rolls and support rolls. The support rolls penetrate the vertical plate and extend to both sides of the vertical plate. Bearings are fitted onto the work rolls and support rolls at positions corresponding to the vertical plate. The width of the bearing cross-section is greater than the thickness of the vertical plate. Guide grooves are formed on the vertical plate, and a hydraulic mechanism is fixedly installed at the upper end of the guide grooves. This invention allows for easy insertion of the acute-angled tip of a trapezoidal feeler gauge into the narrow gap between two cylindrical bearings, enabling precise positioning and stable support of the support rolls. Combined with a finely adjustable hydraulic lifting mechanism for the work rolls, it achieves standardized and quantitative measurement and comparison of the gap between the two ends of the rolls without relying on the operator's feel, thus providing a direct and reliable basis for rapid and precise adjustment of parallelism.

Description

Technical Field

[0001] This invention relates to the field of rolling mill technology, and in particular to a device for rapidly adjusting the parallelism of rolling mill rolls. Background Technology

[0002] Rolling mills are core equipment in metal rolling and processing, widely used in industries such as steel and non-ferrous metals. They process metal billets into various products such as plates, strips, foils, bars, and profiles through the plastic deformation of rolls. The stability and rolling accuracy of the rolling mill directly determine the thickness uniformity, shape quality, and production efficiency of the final product. The parallelism between the support rolls and the work rolls is a key prerequisite for ensuring uniform roll gap, balanced rolling force, and obtaining high-quality products. Some rolling mills are used to roll thick-gauge products with low precision requirements, where manual or simple control can meet the quality standards, eliminating the need for high-precision AGC systems. In offline maintenance scenarios, temporary adjustments also do not require long-term automated systems.

[0003] In existing technologies, in rolling mills without automatic thickness control (AGC) systems or in scenarios requiring offline maintenance, roll parallelism adjustment still heavily relies on manual operation. Operators typically use the "press-fit method," where two rolls are pressed together, and a feeler gauge is used to measure the gap at both ends of the roll gap to determine the parallelism deviation. However, since rolls are cylindrical and their surfaces are curved, conventional flat feeler gauges cannot stably and fully conform to the curved surface, and can only make local point contact measurements, resulting in insufficient representativeness and large errors in the results.

[0004] This manual adjustment process not only relies on the operator's feel and experience, but also requires repeated starting and stopping of the equipment and multiple measurements and adjustments, which is inefficient and poses safety hazards. At the same time, the high temperature of the rollers and the presence of water or oil will increase the difficulty of inserting, removing and reading the feeler gauge, further affecting the accuracy and speed of the adjustment.

[0005] Therefore, it is urgent to improve the rapid adjustment device for the parallelism of the rolling mill rolls in order to solve the above-mentioned problems. Summary of the Invention

[0006] The purpose of this invention is to provide a device for quickly adjusting the parallelism of rolling mill rolls. This device can easily insert the acute-angled tip of a trapezoidal feeler gauge into the narrow gap between two cylindrical bearings, accurately positioning and providing stable support to the support roll. Combined with a finely adjustable hydraulic lifting mechanism for the work roll, it enables standardized and quantitative measurement and comparison of the gap between the two ends of the roll without relying on the operator's feel, thus providing a direct and reliable basis for quickly and accurately adjusting the parallelism.

[0007] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] A quick adjustment device for the parallelism of rolling mill rolls includes a base plate on which two symmetrically distributed vertical plates are fixedly mounted. A main drive mechanism is fixedly mounted on one side of each vertical plate. The output end of the main drive mechanism is meshed with upper and lower distributed work rolls and support rolls. The support rolls pass through the vertical plates and extend to both sides of the vertical plates. Bearings are fitted onto the work rolls and support rolls at positions corresponding to the vertical plates. The cross-sectional width of the bearings is greater than the thickness of the vertical plates. Guide grooves are formed on the vertical plates. The two ends of the work rolls are vertically slidably disposed inside the guide grooves. A hydraulic mechanism is fixedly mounted on the upper end of the guide grooves. The hydraulic mechanism is used to drive the work rolls to slide up and down.

[0009] A threaded rod is fixedly installed on one side of the upright plate, and a guide rod is fixedly installed below the threaded rod. A push plate is slidably mounted on the guide rod, and a trapezoidal feeler gauge is fixedly installed on the push plate. One end of the trapezoidal feeler gauge with an acute angle θ extends between two bearings distributed vertically. The bottom side of the trapezoidal feeler gauge is horizontally positioned with the upper end of the bearing on the support roller. A compression spring is fixedly connected to one side of the push plate and is sleeved on the threaded rod. One end of the compression spring contacts the side of the upright plate, and an adjusting ring is rotatably connected to the other side of the push plate.

[0010] A guide plate is rotatably connected to the upper side of the base plate via a hinge, and the guide plate is disposed between the two upright plates.

[0011] Preferably, the main transmission mechanism includes a motor, a coupling, and a reducer. Both ends of the coupling are connected to the motor and the reducer via belts, and the output end of the reducer is fixedly connected to the support roller.

[0012] Preferably, a drive gear is fixedly mounted on the support roller, a gear set is rotatably mounted on one side of the upright plate, one side of the gear set meshes with the drive gear, a driven gear is fixedly mounted on the working roller corresponding to the position of the gear set, and a tensioning mechanism is slidably mounted on the side of the upright plate away from the gear set.

[0013] Preferably, the upright plate has a transverse groove corresponding to the position of the tensioning mechanism. The tensioning mechanism includes a tensioning slider and a rotating rod rotatably disposed inside the tensioning slider. One end of the tensioning slider contacts the bottom side of the guide plate, and both ends of the rotating rod extend to the outside of the upright plate. A tensioning wheel is fixedly connected to one end of the rotating rod. The driven gear, the gear set, and the tensioning wheel are rotatably connected to each other via a chain. A pendulum is fixedly installed at the other end of the rotating rod.

[0014] Preferably, the hydraulic mechanism includes a mounting plate and an electric cylinder fixedly mounted on the upper end of the mounting plate. A slide is fixedly mounted on the output end of the electric cylinder, and the slide is fixedly connected to the upper side of the bearing.

[0015] Preferably, the inner side of the adjusting ring engages with the thread on the threaded rod, and the adjusting ring is used to drive the trapezoidal feeler gauge to slide back and forth.

[0016] Preferably, the trapezoidal feeler gauge is a right trapezoid, and a positioning plate is fixedly provided on the trapezoidal feeler gauge corresponding to the position of the push plate. A limit nut is rotatably provided on the positioning plate, and the limit nut is used to fix the position of the trapezoidal feeler gauge.

[0017] Preferably, a lead screw is rotatably mounted inside the guide rod, the lead screw extends to the outside of the guide rod, a calibration slider is slidably mounted on the lead screw, and a scale is fixedly mounted on both sides of the calibration slider, the scale having graduations.

[0018] Preferably, when the working roller is in full contact with the support roller, the push plate corresponds to the 0 mark reference on the scale.

[0019] Preferably, the acute angle θ of the trapezoidal feeler gauge is an angle with a tangent of 1 / 2, ensuring that the ratio of the distance the push plate moves on the lead screw to the distance between the two rollers is 2:1.

[0020] This invention has at least the following beneficial effects:

[0021] 1. This invention allows for easy insertion of the acute-angled tip of a trapezoidal feeler gauge into the narrow gap between two cylindrical bearings, enabling precise positioning and stable support of the support roller. Combined with a finely adjustable hydraulic lifting mechanism for the work roller, it enables standardized and quantitative measurement and comparison of the gap between the two ends of the roll without relying on the operator's feel, thus providing a direct and reliable basis for rapid and accurate adjustment of parallelism.

[0022] 2. When the trapezoidal feeler gauge is inserted at an acute angle between two bearings, the present invention will cause the push plate to produce twice the displacement in the horizontal direction due to a tiny vertical distance in the roll gap. This displacement is the actual roll gap value. The invention converts the tiny vertical roll gap change, which is difficult to measure directly and accurately, into a horizontal linear displacement that is easy to observe and control. This displacement is then amplified by a fixed ratio, thereby greatly improving the measurement accuracy and operability.

[0023] 3. This invention can reverse the detection of the standard accuracy of the scale. Through a set of rigorous and operable steps, the entire adjustment device can be restored to its precise initial state. It also provides a method for periodically verifying the accuracy of the system itself, ensuring that the amplification measurement law on which the equipment works remains true and effective after long-term use. This makes the daily roller gap setting work based on this principle fundamentally accurate and authoritative. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0025] Figure 1 The overall elevation view provided for this invention;

[0026] Figure 2 This is a front view diagram provided for the present invention;

[0027] Figure 3 Provided by the present invention Figure 1 Enlarged view of point A in the middle;

[0028] Figure 4 Provided by the present invention Figure 2 Schematic diagram of the cross section at point B-B';

[0029] Figure 5 This is a schematic diagram of the working process of the trapezoidal feeler gauge provided by the present invention;

[0030] Figure 6 This is a schematic diagram of the ruler calibration provided by the present invention;

[0031] Figure 7 This is a cross-sectional elevation view of the guide rod provided by the present invention;

[0032] Figure 8 This is a rear elevation view diagram provided for the present invention;

[0033] Figure 9 This is a schematic diagram of the gear set and tensioning mechanism provided by the present invention;

[0034] Figure 10 This is a schematic diagram of the tensioning structure provided by the present invention.

[0035] In the diagram, 100 is the base plate; 200 is the vertical plate; 210 is the threaded rod; 220 is the guide rod; 221 is the lead screw; 222 is the calibration slider; 223 is the scale; 230 is the gear set; 240 is the tensioning mechanism; 241 is the tensioning slider; 242 is the rotating rod; 243 is the tensioning wheel; 244 is the pendulum; 250 is the transverse groove; 300 is the main transmission mechanism; 310 is the motor; 320 is the coupling; and 330 is the reducer. 340, belt; 410, working roller; 411, driven gear; 420, support roller; 430, bearing; 421, driving gear; 500, guide groove; 600, hydraulic mechanism; 610, mounting plate; 620, electric cylinder; 630, slide; 700, push plate; 710, compression spring; 720, adjusting ring; 800, trapezoidal feeler gauge; 810, positioning plate; 820, limit nut; 900, guide plate. Detailed Implementation

[0036] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0037] like Figures 1-10 As shown, the quick adjustment device for the parallelism of rolling mill rolls provided in this embodiment includes a base plate 100. Two symmetrically distributed vertical plates 200 are fixedly installed on the base plate 100. A main drive mechanism 300 is fixedly installed on one side of the vertical plate 200. The output end of the main drive mechanism 300 is meshed with a vertically distributed work roll 410 and a support roll 420. The support roll 420 passes through the vertical plate 200 and extends to both sides of the vertical plate 200. Bearings 430 are sleeved on the work roll 410 and the support roll 420 at positions corresponding to the vertical plate 200. The cross-sectional width of the bearing 430 is greater than the thickness of the vertical plate 200. A guide groove 500 is opened on the vertical plate 200. The two ends of the work roll 410 are vertically slidably disposed inside the guide groove 500. A hydraulic mechanism 600 is fixedly installed at the upper end of the guide groove 500. The hydraulic mechanism 600 is used for transmission of the work rolls. The roller 410 slides up and down; a threaded rod 210 is fixedly installed on one side of the vertical plate 200, a guide rod 220 is fixedly installed below the threaded rod 210, a push plate 700 is slidably arranged on the guide rod 220, a trapezoidal feeler gauge 800 is fixedly installed on the push plate 700, one end of the trapezoidal feeler gauge 800 with an acute angle θ extends between two bearings 430 distributed vertically, the bottom side of the trapezoidal feeler gauge 800 is horizontally arranged with the upper end of the bearing 430 on the support roller 420, a pressure spring 710 is fixedly connected to one side of the push plate 700, the pressure spring 710 is sleeved on the threaded rod 210, one end of the pressure spring 710 is in contact with the side of the vertical plate 200, and an adjusting ring 720 is rotatably connected to the other side of the push plate 700; a guide plate 900 is rotatably connected to the upper side of the bottom plate 100 through a hinge, and the guide plate 900 is arranged between the two vertical plates 200.

[0038] The main drive mechanism 300 drives the working roll 410 and the support roll 420 to operate in conjunction. The hydraulic mechanism 600 adjusts the vertical position of the working roll 410 through the guide groove 500 to control the roll gap. The trapezoidal feeler gauge 800, with the cooperation of the push plate 700, the clamping spring 710 and the guide rod 220, achieves stable contact with the bearing 430 to accurately measure the parallelism of the rolls. The adjusting ring 720 finely adjusts the position of the push plate, and the guide plate 900 assists in guiding the material. The overall structure works together to quickly adjust and accurately measure the parallelism of the rolls, improving operating efficiency and accuracy. The sharp tip of the trapezoidal feeler gauge 800 can easily be inserted into the narrow gap between the two cylindrical bearings 430. Its inclined surface can form a stable line contact or small area contact with the outer ring of the bearing 430, overcoming the disadvantage of unstable point contact between the sheet-shaped feeler gauge and the arc-shaped roller surface; the clamping spring 710 applies a thrust perpendicular to the insertion direction to the trapezoidal feeler gauge 800 through the push plate 700, ensuring that the inclined side of the trapezoidal feeler gauge 800 maintains stable contact with the upper end face of the bearing 430 of the support roller 420, eliminating the measurement fluctuation caused by uneven force when manually holding the feeler gauge, making the contact state consistent each time it is inserted. The push plate 700 slides along the guide rod 220, ensuring that the feeler gauge's advancement trajectory is strictly linear and will not wobble, ensuring the accuracy of the measurement position.

[0039] Furthermore, such as Figures 1-10 As shown, the main transmission mechanism 300 includes a motor 310, a coupling 320, and a reducer 330. The two ends of the coupling 320 are connected to the output shaft of the motor 310 and the input end of the reducer 330 respectively via belts 340. The output end of the reducer 330 is fixedly connected to the support roller 420. A drive gear 421 is fixedly installed on the support roller 420. A gear set 230 is rotatably installed on one side of the vertical plate 200. One side of the gear set 230 meshes with the drive gear 421. A driven gear 411 is fixedly installed on the working roller 410 at the position corresponding to the gear set 230. The other side of the gear set 230 meshes with the driven gear 411. A tensioning mechanism 240 is slidably installed on the side of the vertical plate 200 away from the gear set 230.

[0040] The motor 310 outputs power to the reducer 330 via the coupling 320, which then drives the support roller 420 to rotate. The drive gear 421 of the support roller 420 drives the driven gear 411 of the working roller 410 via the gear set 230, achieving synchronous operation between the working roller and the support roller. The tensioning mechanism 240 can adjust the meshing clearance of the gear set 230. The high-speed power output by the motor 310 is transmitted to the reducer 330 via the coupling 320, and after speed reduction and torque amplification, it directly drives the support roller 420 to rotate. The drive gear 421 fixed on the support roller 420 drives the gear set 230 meshing with it. The gear set 230 then transmits the power to the driven gear 411 on the working roller 410, ultimately achieving precise synchronous and reverse operation between the working roller 410 and the support roller 420.

[0041] Meanwhile, in order to absorb changes in chain tension caused by roller position adjustments and to always maintain the optimal tension of the transmission system:

[0042] like Figures 8-10 As shown, the vertical plate 200 has a horizontal groove 250 at the position corresponding to the tensioning mechanism 240. The tensioning mechanism 240 includes a tensioning slider 241 and a rotating rod 242 rotatably disposed inside the tensioning slider 241. One end of the tensioning slider 241 contacts the bottom side of the guide plate 900. Both ends of the rotating rod 242 extend to the outside of the vertical plate 200. One end of the rotating rod 242 is fixedly connected to a tensioning wheel 243. The driven gear 411, the gear set 230, and the tensioning wheel 243 are rotatably connected to each other via a chain. The other end of the rotating rod 242 is fixedly installed with a pendulum 244. When the position of the working roller 410 changes, it will immediately affect the spatial position of its end driven gear 411. This change will be transmitted to the entire tensioning system through the chain connecting the driven gear 411, the gear set 230, and the tensioning wheel 243, and the tensioning mechanism 240 will start to function.

[0043] The tension of the chain acts on the tensioning wheel 243 and is transmitted to the rotating rod 242, allowing the entire tensioning slider 241 to slide adaptively within the transverse groove 250 of the vertical plate 200. The pendulum 244 at one end of the tensioning slider 241 then swings significantly, reflecting the tension changes in the transmission system caused by the adjustment of the roll gap in real time. The vibration generated by the rotation of the pendulum 244 can effectively act on the guide plate 900 in contact with the tensioning slider 241, helping to shake off the material residue accumulated on the guide plate. The guide plate 900 itself is rotatably connected to the base plate 100 via a hinge. Its main function is to receive the material residue cleaned or extruded from the gap between the rolls. The vibration force provided by the pendulum assists it in completing self-cleaning and keeping the working area clean.

[0044] Furthermore, such as Figures 1-7 As shown, the hydraulic mechanism 600 includes a mounting plate 610 and an electric cylinder 620 fixedly mounted on the upper end of the mounting plate 610. A slide 630 is fixedly mounted on the output end of the electric cylinder 620. The slide 630 is fixedly connected to the upper side of the bearing 430. The inner side of the adjusting ring 720 meshes with the thread on the threaded rod 210. The adjusting ring 720 is used to drive the trapezoidal feeler gauge 800 to slide back and forth. The trapezoidal feeler gauge 800 is a right trapezoid. A positioning plate 810 is fixedly provided at the position of the trapezoidal feeler gauge 800 corresponding to the position of the push plate 700. A limit nut 820 is rotatably provided on the positioning plate 810. The limit nut 820 is used to fix the position of the trapezoidal feeler gauge 800.

[0045] When the operator needs to adjust the parallelism of the rolls, firstly, the electric cylinder 620 drives the support roll 420 to rise to the operable position. Then, the right-angled edge of the trapezoidal feeler gauge 800 is brought close to the push plate 700, ensuring its bottom side contacts the upper end of the bearing 430 on the support roll 420 and that its lower bottom is level. It is then fixed to the push plate 700 by the positioning plate 810 and the limit nut 820. Rotating the adjusting ring 720 drives the push plate 700 to push the acute-angled end of the trapezoidal feeler gauge 800 between the two bearings 430. The trapezoidal feelers 800 on both sides must maintain a consistent pushing distance. The measurement is visualized using a scale 223 during the push; then the electric cylinder 620 of the hydraulic mechanism 600 is activated, and the electric cylinder 620 pushes the slide 630 at its output end to make a precise vertical displacement along the guide groove 500. Since the slide 630 is directly fixed to the bearing 430 of the working roller 410, this linear motion is converted into a fine adjustment of the vertical lifting of one end of the working roller 410, thereby changing the local roller gap between it and the lower support roller 420 until the bearing 430 on the working roller 410 contacts the inclined surface of the trapezoidal feeler gauge 800.

[0046] In order to standardize and quantify the measurement and comparison of the gap at both ends of the roll:

[0047] like Figures 5-7 As shown, a lead screw 221 is rotatably mounted inside the guide rod 220, extending to the outside of the guide rod 220. A calibration slider 222 is slidably mounted on the lead screw 221, and scales 223 are fixedly installed on both sides of the calibration slider 222. The scales 223 have graduations. When the working roller 410 and the support roller 420 are in full contact, the push plate 700 corresponds to the 0 graduation reference on the scale 223. The acute angle θ of the trapezoidal feeler gauge 800 is an angle with a tangent of 1 / 2, ensuring that the ratio of the moving distance of the push plate 700 on the lead screw 221 to the distance between the two rollers is 2:1. The tangent of the acute angle θ of the trapezoidal feeler gauge 800 is tanθ=1 / 2. In a right triangle, tanθ=opposite side / adjacent side=1 / 2. For this trapezoidal feeler gauge 800, its right-angled side can be regarded as "height change ΔH" and "horizontal displacement ΔL", from which the decisive relationship is derived:

[0048] L1 / L2 = 1 / 2, that is, ΔL = 2 × ΔH

[0049] When the trapezoidal feeler gauge 800 is inserted at an acute angle between the two bearings 430, the push plate 700 moves a distance L2 in the horizontal direction. Its inclined surface will force the roll gap to change by half L1 in height. The displacement value displayed on the scale 223 divided by 2 is the current actual roll gap value L1. The tiny vertical roll gap change L1, which is difficult to measure directly and accurately, is converted into a horizontal linear displacement that is easy to observe and control. It is then amplified by a fixed ratio, thereby greatly improving the measurement accuracy and operability.

[0050] When the position of the trapezoidal feeler gauge 800 needs to be calibrated, the working roller 410 is first driven to its lowest position via the hydraulic mechanism 600. When the working roller 410 and the support roller 420 are adjusted to be in physical full contact, i.e., theoretically zero gap, the adjusting ring 720 is rotated to drive the inclined side of the acute angle end of the trapezoidal feeler gauge 800 to contact the bearing 430. At this time, the push plate 700 should theoretically be aligned with the "0" mark on the scale 223. If misalignment occurs, the calibration slider 222 is driven to slide back and forth by rotating the lead screw 221 until the "0" mark on the scale 223 is aligned with the push plate 700, and its relationship with the calibration slider 222 is fixed. Then, the standard accuracy of the scale 223 can be checked in reverse. Through a set of rigorous and operable steps, the entire adjustment device is restored to its precise initial state, and a method for periodically verifying the accuracy of the system itself is provided. This ensures that the amplification measurement law on which the equipment works remains true and effective after long-term use, thus making the daily roller gap setting work based on this principle fundamentally accurate and authoritative.

[0051] like Figures 1-10 As shown in the figure, the principle of the quick adjustment device for the parallelism of rolling mill rolls provided in this embodiment is as follows:

[0052] In use, firstly, the electric cylinder 620 drives the support roller 420 to rise to the operable position. The right-angled edge of the trapezoidal feeler gauge 800 is brought close to the push plate 700, so that its bottom side contacts the upper end of the bearing 430 of the support roller 420 and keeps the bottom horizontal. It is fixed by the positioning plate 810 and the limit nut 820. Rotating the adjusting ring 720 drives the push plate 700 to push the acute angle end of the trapezoidal feeler gauge 800 between the two bearings 430. The pushing distance on both sides must be consistent. The pushing is visually measured by the scale 223. Then, the electric cylinder 620 of the hydraulic mechanism 600 is activated to push the slide 630 to make a precise vertical displacement along the guide groove 500. Since the slide 630 is fixed to the bearing 430 of the working roller 410, it is converted into a fine adjustment of the lifting of one end of the working roller 410, changing the local roller gap with the support roller 420, until the bearing 430 of the working roller 410 contacts the inclined surface of the trapezoidal feeler gauge 800. When calibrating the trapezoidal feeler gauge 800, first lower the working roller 410 to its lowest position using the hydraulic mechanism 600, so that the working roller 410 and the support roller 420 are in physical contact with theoretical zero gap; rotate the adjusting ring 720 so that the acute angled hypotenuse of the trapezoidal feeler gauge 800 contacts the bearing 430. At this time, the push plate 700 should be aligned with the "0" mark of the scale 223; if misaligned, rotate the lead screw 221 to adjust the calibration slider 222 until aligned. After fixing, the accuracy of the scale 223 can be checked in reverse.

[0053] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0054] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0055] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A quick adjustment device for the parallelism of rolling mill rolls, comprising a base plate (100), characterized in that: Two symmetrically distributed vertical plates (200) are fixedly installed on the base plate (100). A main drive mechanism (300) is fixedly installed on one side of the vertical plate (200). The output end of the main drive mechanism (300) is meshed with a vertically distributed working roller (410) and a support roller (420). The support roller (420) passes through the vertical plate (200) and extends to both sides of the vertical plate (200). The working roller (410) and the support roller (420) are fitted with bearings (430) at positions corresponding to the vertical plate (200). The cross-sectional width of the bearing (430) is greater than the thickness of the vertical plate (200). A guide groove (500) is opened on the vertical plate (200). The two ends of the working roller (410) are vertically slidably disposed inside the guide groove (500). A hydraulic mechanism (600) is fixedly installed at the upper end of the guide groove (500). The hydraulic mechanism (600) is used to drive the working roller (410) to slide up and down. A threaded rod (210) is fixedly installed on one side of the upright plate (200), and a guide rod (220) is fixedly installed below the threaded rod (210). A push plate (700) is slidably arranged on the guide rod (220), and a trapezoidal feeler gauge (800) is fixedly installed on the push plate (700). One end of the trapezoidal feeler gauge (800) with an acute angle θ extends between two bearings (430) distributed vertically. The bottom side of the trapezoidal feeler gauge (800) is flush with the bearing (430) on the support roller (420). 30) The upper end is horizontally set, and a compression spring (710) is fixedly connected to one side of the push plate (700). The compression spring (710) is sleeved on the threaded rod (210). One end of the compression spring (710) is in contact with the side of the upright plate (200). An adjusting ring (720) is rotatably connected to the other side of the push plate (700). A guide plate (900) is rotatably connected to the upper side of the bottom plate (100) through a hinge. The guide plate (900) is set between the two upright plates (200). The guide rod (220) is rotatably equipped with a lead screw (221), which extends to the outside of the guide rod (220). A calibration slider (222) is slidably mounted on the lead screw (221), and a scale (223) is fixedly installed on both sides of the calibration slider (222). The scale (223) has a graduation. When the working roller (410) is in complete contact with the support roller (420), the push plate (700) corresponds to the 0 graduation reference on the scale (223). The acute angle θ of the trapezoidal feeler gauge (800) is an angle with a tangent of 1 / 2, so as to ensure that the ratio of the moving distance of the push plate (700) on the lead screw (221) to the distance between the two rollers is 2:

1. Furthermore, when it is necessary to calibrate the accuracy of the scale (223), the hydraulic mechanism (600) drives the working roller (410) to the lowest position, so that the working roller (410) and the support roller (420) reach the theoretical zero gap state through physical contact. By rotating the adjusting ring (720), the trapezoidal feeler gauge (800) is driven so that the inclined side of its acute angle end contacts the bearing (430). If the push plate (700) and the "0" mark on the scale (223) are misaligned at this time, the calibration slider (222) is driven to slide back and forth by rotating the lead screw (221) until the "0" mark on the scale (223) is aligned with the push plate (700) and fixed, thereby completing the reverse detection and calibration of the measurement benchmark.

2. The rolling mill roll parallelism rapid adjustment device according to claim 1, characterized in that: The main transmission mechanism (300) includes a motor (310), a coupling (320) and a reducer (330). Both ends of the coupling (320) are connected to the motor (310) and the reducer (330) via belts (340). The output end of the reducer (330) is fixedly connected to the support roller (420).

3. The rolling mill roll parallelism rapid adjustment device according to claim 1, characterized in that: A drive gear (421) is fixedly mounted on the support roller (420). A gear set (230) is rotatably mounted on one side of the vertical plate (200). One side of the gear set (230) meshes with the drive gear (421). A driven gear (411) is fixedly mounted on the working roller (410) at the position corresponding to the gear set (230). A tensioning mechanism (240) is slidably mounted on the side of the vertical plate (200) away from the gear set (230).

4. The rolling mill roll parallelism quick adjustment device according to claim 3, characterized in that: The upright plate (200) has a transverse groove (250) at the position corresponding to the tensioning mechanism (240). The tensioning mechanism (240) includes a tensioning slider (241) and a rotating rod (242) rotatably disposed inside the tensioning slider (241). One end of the tensioning slider (241) is in contact with the bottom side of the guide plate (900). Both ends of the rotating rod (242) extend to the outside of the upright plate (200). One end of the rotating rod (242) is fixedly connected to a tensioning wheel (243). The driven gear (411), the gear set (230), and the tensioning wheel (243) are rotatably connected to each other via a chain. The other end of the rotating rod (242) is fixedly installed with a pendulum (244).

5. The rolling mill roll parallelism quick adjustment device according to claim 1, characterized in that: The hydraulic mechanism (600) includes a mounting plate (610) and an electric cylinder (620) fixedly mounted on the upper end of the mounting plate (610). A slide (630) is fixedly mounted on the output end of the electric cylinder (620), and the slide (630) is fixedly connected to the upper side of the bearing (430).

6. The rolling mill roll parallelism quick adjustment device according to claim 1, characterized in that: The inner side of the adjusting ring (720) engages with the thread on the threaded rod (210), and the adjusting ring (720) is used to drive the trapezoidal feeler gauge (800) to slide back and forth.

7. The rolling mill roll parallelism quick adjustment device according to claim 1, characterized in that: The trapezoidal feeler gauge (800) is a right trapezoid. A positioning plate (810) is fixedly provided on the trapezoidal feeler gauge (800) corresponding to the position of the push plate (700). A limit nut (820) is rotatably provided on the positioning plate (810). The limit nut (820) is used to fix the position of the trapezoidal feeler gauge (800).

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