Bearing system and centering adjustment method of bearing seat

Abstract

The invention provides a bearing system and a centering adjustment method of a bearing seat, and relates to the technical field of rolling mill bearings, the bearing system comprises the bearing seat, sliding plate faces are arranged on the two sides of the bearing seat respectively, and the sliding plate faces are used for installing sliding plates; third grooves are formed in the sliding plate faces of the bearing seats, the bottom faces of the third grooves are configured to be datum planes, the datum planes are covered with first cover plates, the outer surfaces of the first cover plates are flush with the sliding plate faces, and the datum planes on the two sliding plate faces are arranged in pairs. And each pair of reference surfaces comprises a first reference surface and a second reference surface which are correspondingly arranged on the sliding plate surfaces on the two sides respectively. According to the centering device, the sliding plate surface of the bearing seat can be adjusted, so that sliding plates on the two sides of the bearing seat are effectively centered.

Description

Technical Field

[0001] The invention relates to the technical field of rolling mill bearings, and in particular to a bearing system and a centering adjustment method for a bearing seat. Background Art

[0002] Due to long-term operation, the sliding plate surface of the bearing seat of the rolling mill is prone to wear and corrosion. In severe cases, it will cause the roller axes to cross during the rolling process, causing the rollers to generate axial force, which may eventually lead to spatial precision failures such as strip deviation.

[0003] At present, it is necessary to detect the skateboard surface through equipment such as laser trackers to determine whether the skateboard surface of the bearing seat needs to be repaired and to determine the repair parameters. If the accuracy of the measurement data is not high, it is impossible to accurately align the skateboards installed on the skateboard surfaces on both sides of the bearing seat. Summary of the invention

[0004] The problem to be solved by the present invention is that the accuracy of the measurement data of the slide plate surface is not high, and the slide plate surfaces on both sides of the bearing seat cannot be accurately aligned.

[0005] In order to solve the above problems, in a first aspect, the present invention provides a bearing system applied to a rolling mill, comprising:

[0006] A bearing seat, wherein two sides of the bearing seat are respectively provided with a slide plate surface, and the slide plate surface is used for mounting a slide plate;

[0007] The bearing seat is provided with a third groove on the slide surface, the bottom surface of the third groove is configured as a reference surface, the reference surface is covered by a first cover plate, and the outer surface of the first cover plate is flush with the slide surface, the reference surfaces on the two slide surfaces are arranged in pairs, and each pair of the reference surfaces includes a first reference surface and a second reference surface respectively arranged on the slide surfaces on both sides;

[0008] The reference plane is a reference plane for obtaining the opening distance, the first distance and the second distance, and the opening distance, the first distance and the second distance are used for centering adjustment of the slide plate of the bearing seat;

[0009] Among them, the opening distance is the distance between the first reference plane and the second reference plane, the first distance is the distance between the outer surface of the first cover plate of the first reference plane in each pair of the reference planes and the second reference plane, and the second distance is the distance between the outer surface of the first cover plate of the first reference plane and the second reference plane in each pair of the reference planes.

[0010] Optionally, a plurality of pairs of the reference planes are provided, and the first reference planes and the second reference planes are evenly distributed along the slide surfaces on both sides.

[0011] Optionally, four pairs of reference planes are provided, the first reference plane and the second reference plane of each pair of reference planes are waist-shaped, each pair of reference planes has at least two pairs of reference points, and the projections of the first reference plane and the second reference plane in each pair of reference planes on the mid-axis plane of the bearing seat are cross-arranged.

[0012] Optionally, it also includes:

[0013] A vibration measuring part is installed at abnormal vibration-exposed positions on both sides of the bearing seat;

[0014] A stress measuring device is installed at abnormal stress positions on both sides of the bearing seat;

[0015] The processor is connected to the vibration measuring device and the stress measuring device, and is used to obtain the vibration data and stress data of the sliding plate surface on both sides to determine whether there is a spatial accuracy fault in the bearing seat.

[0016] Optionally, a first groove is opened at the abnormal vibration-bearing position on both sides of the bearing seat, and the vibration measuring device is installed in the first groove; a second groove is opened at the abnormal stress-bearing position on both sides of the bearing seat, and the stress measuring device is installed in the second groove; the first groove is covered by a second cover plate, and the second groove is sealed by a sealing device.

[0017] The bearing system provided by the present invention has a pair of first and second reference surfaces concavely arranged on the slide surfaces on both sides. Even if the slide surfaces are worn during the operation of the rolling mill, the reference surfaces will not change. Therefore, the reference surfaces have good stability. The reference surfaces are used as the basis for centering adjustment, and the accurate values ​​of the opening distance, the first distance and the second distance are obtained respectively. According to the accurate values ​​of the opening distance, the first distance and the second distance, the slide surface of the bearing seat is adjusted to effectively center the slides on both sides of the bearing seat, thereby avoiding spatial accuracy failures of the rolling mill and ensuring that the assembly dimensions of the bearing seat meet the production and design requirements. Since the reference surface can be used continuously during the life cycle, the bearing system can be guaranteed to have a long service life.

[0018] In a second aspect, the present invention further provides a method for centering and adjusting a bearing seat. Based on the bearing system as described in any one of the above items, the method for centering and adjusting a bearing seat comprises:

[0019] Get the opening distance, the first distance and the second distance;

[0020] The slide plate of the bearing seat is centered and adjusted according to the opening distance, the first distance and the second distance.

[0021] Optionally, acquiring the opening distance, the first distance, and the second distance includes:

[0022] The opening distance, the first distance and the second distance are measured respectively by a saddle ruler.

[0023] Optionally, centering and adjusting the slide plate of the bearing seat according to the opening distance, the first distance and the second distance includes:

[0024] Determine the difference between the inlet side centering distance and the outlet side centering distance of each pair of reference surfaces respectively, the inlet side centering distance of each pair of reference surfaces is the average value of the first distances corresponding to each pair of reference points contained therein and the first difference of the opening distance, and the outlet side centering distance of each pair of reference surfaces is the average value of the second distances corresponding to each pair of reference points contained therein and the second difference of the opening distance;

[0025] Add or reduce spacers between the slide surface and the slide corresponding to each pair of the reference surfaces, and adjust the positions of the spacers so that the slide of the bearing seat is centered and meets the design dimensions, wherein the thickness of the added or reduced spacers is equal to the absolute value of the difference between the standard centering value of the slide surface in the design dimensions and the first difference, or equal to the absolute value of the difference between the standard centering value of the slide surface and the second difference.

[0026] Optionally, it also includes:

[0027] According to the difference between the first distance and the second distance, or according to the changes in the vibration data and stress data of the skateboard surfaces on both sides, it is judged whether the bearing seat has a spatial accuracy failure, the vibration data including the vibration amplitude, and the stress data including the stress value.

[0028] Optionally, judging whether the bearing seat has a spatial precision fault according to the difference between the first distance and the second distance, or according to changes in vibration data and stress data of the sliding plate surfaces on both sides, includes:

[0029] If the difference between the first distance and the second distance is greater than a preset distance, it is determined that the bearing seat has a spatial accuracy fault;

[0030] Alternatively, if the vibration amplitude exceeds a preset amplitude and the stress value is greater than a preset value, it is determined that the bearing seat has a spatial precision fault.

[0031] The centering adjustment method of the bearing seat provided by the present invention performs centering adjustment on the slide plate of the bearing seat according to the opening distance, the first distance and the second distance. Since the basis of the centering adjustment is on the set reference plane, the reference plane has good stability. Therefore, when the slide plates on both sides of the bearing seat are centering adjusted, it can always be ensured that the relationship between the opening distance of the slide plate surface and the first distance and the second distance is satisfied. Therefore, the accuracy of each centering adjustment is guaranteed, which ensures the spatial accuracy of the rolling mill, thereby avoiding spatial accuracy failures of the rolling mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A main structural diagram of a bearing system in an embodiment of the present invention is shown;

[0033] Figure 2 Shows Figure 1 The enlarged schematic diagram of point A in the middle;

[0034] Figure 3 A schematic diagram of the related structure of the first reference plane in an embodiment of the present invention is shown;

[0035] Figure 4 A schematic diagram showing the relevant structure of the second reference surface in an embodiment of the present invention is shown;

[0036] Figure 5 A schematic diagram of the top view of the bearing system in an embodiment of the present invention is shown;

[0037] Figure 6 A schematic flow chart of a method for centering and adjusting a bearing seat is shown.

[0038] Description of reference numerals:

[0039] 1. Bearing seat; 2. First reference surface; 3. Vibration measuring component; 4. Stress measuring component; 5. Second reference surface; 6. First cover plate; 7. Second cover plate. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0041] It should be noted that, in the present invention, relational terms such as "first" and "second" 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0043] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5 , in the same coordinate system, the roller axis is parallel to the direction of the X-axis, the positive direction of the X-axis is the operating side, the negative direction of the X-axis is the transmission side, the positive direction of the Y-axis is the outlet side, and the negative direction of the Y-axis is the inlet side.

[0044] Reference Figure 1-Figure 5 As shown, an embodiment of the present invention provides a bearing system, comprising:

[0045] A bearing seat 1, wherein two sides of the bearing seat 1 are respectively provided with a slide plate surface, and the slide plate surface is used for installing a slide plate;

[0046] The slide plate surface is used to install the slide plate through bolts. The slide plate contacts the sliding surface of the rolling mill frame to realize the sliding installation of the bearing seat 1 on the rolling mill frame. The sliding installation of the bearing seat 1 is used to adjust the opening between the rolling mill rolls. For example, Figure 1 The positions of the slide plates on both sides of the middle bearing seat 1 are to cover Figure 1 The rectangular area with 9 screw holes.

[0047] The bearing seat 1 is provided with a third groove on the slide surface, and the bottom surface of the third groove is configured as a reference surface, and the reference surface is covered by a first cover plate 6, and the outer surface of the first cover plate 6 is flush with the slide surface, and the reference surfaces on the two slide surfaces are arranged in pairs, and each pair of the reference surfaces includes a first reference surface 2 and a second reference surface 5 respectively arranged on the slide surfaces on both sides;

[0048] Since the sliding plate surface is in contact with the sliding plate surface, both the sliding plate surface and the sliding plate are subject to wear. As for the reference plane, it is arranged inside the sliding plate surface, that is, it is concave inside the sliding plate surface, so as to avoid being worn, and the groove formed by the concave is covered by the first cover plate 6. On the one hand, the reference plane is protected, and on the other hand, the first cover plate 6 serves as a new "sliding plate surface", which forms a support for the sliding plate. The reference planes are arranged in pairs on the inlet side and the outlet side. The inlet and the outlet are relative to the feeding and discharging directions of the plate, that is, on the sliding plate surfaces on both sides, the first reference plane 2 and the second reference plane 5 are distributed in pairs. If there is a first reference plane 2, there is a second sliding plate surface 5, and each pair of the first reference plane 2 and the second reference plane 5 is arranged relatively to each other.

[0049] The reference plane is a reference plane for obtaining the opening distance, the first distance and the second distance, and the opening distance, the first distance and the second distance are used for centering adjustment of the slide plate of the bearing seat 1;

[0050] Among them, the opening distance is the distance between the first reference plane 2 and the second reference plane 5, the first distance is the distance between the outer surface of the first cover plate 6 of the first reference plane 2 in each pair of the reference planes and the second reference plane 5, and the second distance is the distance between the outer surface of the first cover plate 6 of the second reference plane 5 in each pair of the reference planes and the first reference plane 2.

[0051] Specifically, with the reference plane as the reference plane, the opening distance, the first distance and the second distance are obtained respectively. The first distance is defined as the distance between the slide surface on the outlet side (the outer surface of the first cover plate 6) and the second reference surface 5 on the inlet side, and the second distance is defined as the distance between the slide surface on the inlet side (the outer surface of the second cover plate 7) and the first reference surface 2 on the outlet side. Since the reference surface will not be worn, the opening distance is always constant. When wear occurs somewhere on the slide surfaces on both sides, such as excessive wear on the lower left corner of the outlet side, the distance from the second reference surface to its slide surface is too small. Normally, Under the condition (the slide plate is centered and the slide plate surface is not worn), the second distance and the third distance should be equal, and the difference between the gap distance and any of the two should be close to equal to meet the design size, because in the case of centering, the first distance and the second distance should be more than the gap distance by the thickness value of the slide plate surface on one side to the reference surface on that side. On the contrary, if it is found that the first distance and the second distance are not more than the gap distance by this value, it can be compensated based on this deviation, such as by adding a gasket between the slide plate surface and the slide plate. Based on this association, the slide plate of the bearing seat 1 can be adjusted to the center. For the slide plate, the standard slide plate needs to be replaced accordingly after each repair of the slide plate surface.

[0052] When this embodiment is applied in practice, since a pair of first reference planes 2 and second reference planes 5 are concavely arranged on the slide surfaces on both sides, the reference planes will not change even if the slide surfaces are worn during the operation of the rollers. Therefore, the reference planes have good stability. The reference planes are used as the basis for centering adjustment, and the accurate values ​​of the opening distance, the first distance and the second distance are obtained respectively. According to the accurate values ​​of the opening distance, the first distance and the second distance, the slide surface of the bearing seat 1 is adjusted to effectively center the slides on both sides of the bearing seat 1, thereby avoiding the phenomenon of scissor rolls and excessive axial force in the rolling mill, and making the assembly dimensions of the bearing seat 1 meet the production and design requirements. Since the reference plane can be used continuously during the life cycle, the bearing system can be guaranteed to have a long service life.

[0053] The present invention can accurately adjust the slide plates on both sides of the bearing seat 1 to be in the center, thereby avoiding the scissor roll phenomenon and excessive axial force phenomenon of the rolling mill, and also avoiding the spatial accuracy failure of the rolling mill, thereby ensuring the accuracy and quality of product rolling.

[0054] like Figure 3 , Figure 4 As shown, as an optional embodiment of the present invention, a plurality of pairs of reference planes are provided, and the first reference planes 2 and the second reference planes 5 are evenly distributed along the skateboard surfaces on both sides.

[0055] Specifically, multiple pairs of reference surfaces are evenly distributed as reference datums for centering, and each pair of reference surfaces forms a centering reference for the position of the slide where it is located, so that the centering adjustment of the entire slide of the bearing seat 1 can be achieved.

[0056] like Figure 3 , Figure 4 As shown, as an optional embodiment of the present invention, the reference planes are provided with four pairs, the first reference plane 2 and the second reference plane 5 of each pair of the reference planes are both waist-shaped, each pair of the reference planes has at least two pairs of reference points, and the projections of the first reference plane 2 and the second reference plane 5 in each pair of the reference planes on the central axis plane of the bearing seat 1 are cross-arranged.

[0057] Specifically, for the slide surface on the outlet side, the first reference planes 2 provided thereon are respectively at the upper left, lower left, upper right and lower right positions of the slide surface in the figure, and are evenly distributed on the slide surface on the side of the bearing seat 1. Correspondingly, the four second reference planes 5 on the inlet side correspond to the four first reference planes 2, respectively, to form four pairs of reference planes, and the projections of the first reference plane 2 and the second reference plane 5 in each pair of reference planes are cross-shaped, because the reference points are respectively staggered horizontally and vertically. For example, the first reference plane 2 on the outlet side is Figure 3 The waist shape shown (vertical arrangement), therefore, the second reference surface 5 on the inlet side is Figure 4 The waist shape shown (horizontally arranged) is specifically composed of two semicircles on both sides connected by two parallel lines.

[0058] exist Figure 1 In the figure, the third groove is a two-stage stepped groove. Along the direction toward the inside of the groove, the bottom surface of the groove of the lower layer is the reference surface, and the bottom surface of the groove of the upper layer is used to install the first cover plate 6.

[0059] The reference point serves as a reference point on the reference plane. When measuring the distance related to the reference plane, the reference point on the reference plane is used as the starting point of the measurement, and the center of the outer surface of the first cover plate 6 on the other side of the skateboard surface is used as the end point. By way of example, the reference points are respectively the centers of the two semicircles in the waist-shaped structure, and each reference plane has at least two reference points.

[0060] In the above, multiple pairs of reference planes are set, and each pair of reference planes forms a local centering reference for the position of the skateboard surface where it is located. Since multiple pairs of reference planes are evenly distributed on the skateboard surfaces on both sides, the centering adjustment of the entire skateboard on both sides can be achieved. It should be noted that each reference plane accounts for a small proportion of the skateboard surface, and the intersection of each pair of reference planes is set in a cross shape, which can ensure accurate centering within a local range and ultimately achieve centering of the entire skateboard.

[0061] like Figure 1 , Figure 3 and Figure 4As shown, as an optional embodiment of the present invention, it also includes:

[0062] A vibration measuring component 3 is installed at abnormal vibration positions on both sides of the bearing seat 1;

[0063] The stress measuring device 4 is installed at abnormal stress positions on both sides of the bearing seat 1;

[0064] The processor is connected to the vibration measuring device 3 and the stress measuring device 4, and is used to obtain the vibration data and stress data of the slide surface on both sides to determine whether there is a spatial accuracy fault in the bearing seat 1. The spatial accuracy fault is mainly caused by the misalignment of the slide, such as the axial force generated by the roller, which is easy to damage the roller bearing seat, damage the rolling mill shaft end clamp, cause damage to the main transmission system of the rolling mill, cause the liner bolts to loosen / break, and cause the strip to deviate.

[0065] Specifically, the abnormal stress position and the abnormal stress position are positions with obvious vibration (such as the maximum vibration position) and obvious stress position (such as the maximum stress position) determined by simulation analysis when the slide plates on both sides are not centered. Figure 4 In the figure, the abnormal vibration position and the abnormal force position are separated. The abnormal force position is located close to the mounting wing (cooperating with the corresponding groove on the frame through the mounting wing) for sliding installation of the bearing seat 1 (to the right), which is also the position that is easily affected by the reverse action of the rolling force from the plate after misalignment. The abnormal vibration position is set at the top of the side of the bearing seat 1.

[0066] It should be noted that when the slides on both sides of the bearing seat 1 are aligned, the frequency spectrum corresponding to the vibration data should tend to change steadily. When the frequency spectrum corresponding to the vibration data changes abnormally, such as a surge in the frequency spectrum, it means that the bearing seat 1 is faulty. This may be caused by the misalignment of the slides on both sides of the bearing seat 1, or it may be caused by an internal fault of the bearing (such as a ball fault). Further judgment is required. If stress continues to be detected at the non-slide installation positions on both sides of the bearing seat 1, it means that the misaligned rollers are subjected to unbalanced reverse effects due to the extrusion of the strip, and the rollers generate axial forces that act on the bearing seat 1 and try to drive the bearing seat 1 out of the installation position of the rolling mill frame. Figure 3 (At the position of the mounting wing on the right side of the middle, the rolling roller exerts a force on both sides of the bearing seat 1. This indicates that the slides on both sides of the bearing seat 1 are not centered. Therefore, by analyzing the vibration data and stress data, it can be determined whether the bearing seat 1 has a spatial accuracy failure.

[0067] When this embodiment is applied in practice, by installing the vibration measuring component 3 and the stress measuring component 4 at reasonable positions, it is ensured that the vibration data and stress data are clearly obtained, so as to determine whether there is a spatial accuracy failure, so that the bearing seat 1 has an online rolling mill spatial accuracy early warning function.

[0068] like Figure 1 , Figure 3 and Figure 4 As shown, as an optional embodiment of the present invention, a first groove is opened at the abnormal vibration-bearing position on both sides of the bearing seat 1, and the vibration measuring device 3 is installed in the first groove. A second groove is opened at the abnormal stress-bearing position on both sides of the bearing seat 1, and the stress measuring device 4 is installed in the second groove (not marked in the figure). The first groove is covered by a second cover plate 7, and the second groove is sealed by a sealing member.

[0069] Specifically, Figure 3 and Figure 4 For the vibration measuring part 3, which can be a temperature-vibration integrated acceleration sensor, a first groove (not marked in the figure) can be opened on the side of the bearing seat 1, and the temperature-vibration integrated acceleration sensor can be placed therein. A second cover plate 7 is designed and bolted together, and a hole is opened in the end cover of the bearing seat 1 to install the connector for power supply and connection.

[0070] like Figure 3 and Figure 4 For the stress measuring device 4, it can be a strain gauge. A second groove is opened on the side of the bearing seat 1, such as the position of the vibration measuring device 4, and the strain gauge is placed therein. The connection part between the strain gauge and its outlet line is sealed with sealant, and the surface of the sealant after sealing is flush with the surface of the slide plate.

[0071] When this embodiment is applied in practice, it is ensured that the sensor needs power supply and data collection transmission. After a hole is opened on the bearing seat 1, the relevant cables can enter and exit from the hole. A cover plate or seal is designed to ensure that data is transmitted reliably in an environment with cooling water (to cool the bearing seat 1), and the routing of vibration data and stress data is integrated and comes out of a vacant space, reducing the design difficulty. In addition, wireless data transmission can also be set.

[0072] like Figure 6 As shown, the present invention also provides a method for centering and adjusting a bearing seat 1, using the bearing system described in the above embodiment, comprising:

[0073] S100: Acquire the opening distance, the first distance and the second distance.

[0074] S200: centering and adjusting the slide plate of the bearing seat 1 according to the opening distance, the first distance and the second distance.

[0075] The first distance is the distance between the outer surface of the first cover plate 6 of the first reference plane 2 in each pair of the reference planes and the second reference plane 5, and the second distance is the distance between the outer surface of the first cover plate 6 of the second reference plane 5 in each pair of the reference planes and the first reference plane 2.

[0076] The centering adjustment of the slide plate of the bearing seat 1 is implemented with reference to the previous embodiment, which will be described below with examples.

[0077] For example, for the first reference plane 2 and the second reference plane 5 corresponding to the lower left corner of the outlet side, the opening distance is 520mm, the first distance is 526mm, the second distance is 524mm, and the standard distance value from the slide surface on one side to the reference surface on this side (the standard centering value of the slide surface) is 10mm, which means that the first distance and the second distance are both too small. Then, gaskets (such as copper sheets, etc.) should be used on both sides of the slide surface (between the slide surface and the slide surface) to make the thickness treatment (4mm and 6mm respectively), so that the standard centering value of the slide surface is close to 10, and the new first distance and second distance are close to 530mm, so that the centering of the lower left corner can be completed. For multiple pairs of reference surfaces, this process is carried out for each reference surface in turn. For the slide plate, it is a consumable part and can be replaced with a standard slide plate each time.

[0078] In this embodiment, the slide plate of the bearing seat 1 is centered and adjusted according to the opening distance, the first distance and the second distance. Since the basis of the centering adjustment is on the set reference plane, the reference plane has good stability. Therefore, when the slide plates on both sides of the bearing seat 1 are centered and adjusted, it can be ensured that the relationship between the opening distance of the slide plate surface and the first distance and the second distance is always satisfied. Therefore, the accuracy of each centering adjustment is guaranteed, which ensures the spatial accuracy of the rolling mill, thereby avoiding spatial accuracy failures of the rolling mill.

[0079] As an optional embodiment of the present invention, obtaining the opening distance, the first distance and the second distance includes:

[0080] The opening distance, the first distance and the second distance are measured respectively by a saddle ruler.

[0081] Specifically, the saddle ruler can be used to measure symmetrical distances. Before measurement, the "0" position should generally be adjusted twice in the middle of the roller, the instrument should be centered just above the bearing seat 1, and the probe tips of the measuring rulers on both sides are adjusted to move vertically against the reference surface or the slide surface, and the reading on the display is read. The measured size = the calibration size - the reading on the display. In addition, measurement by measuring tools, such as a caliper, is generally also possible.

[0082] As an optional embodiment of the present invention, the centering adjustment of the slide plate of the bearing seat 1 according to the opening distance, the first distance and the second distance includes:

[0083] Determine the difference between the inlet side centering distance and the outlet side centering distance of each pair of reference surfaces respectively, the inlet side centering distance of each pair of reference surfaces is the average value of the first distances corresponding to each pair of reference points contained therein and the first difference of the opening distance, and the outlet side centering distance of each pair of reference surfaces is the average value of the second distances corresponding to each pair of reference points contained therein and the second difference of the opening distance;

[0084] Specifically, after removing the slide plate on the slide plate surface, follow the steps below:

[0085] Step 1: Measure the straight-line distance between a pair of reference surfaces of the bearing seat 1 along the Y-axis direction to obtain the gap distance L1 (since the reference surface and the bearing seat 1 have the same processing reference, which is generally the axis of the roller installation position, the gap distance between each pair of reference surfaces is the same);

[0086] Step 2: Measure the size of the inlet reference plane and the outlet slide surface (the second distance). When the reference plane is a waist-shaped surface, take two circle centers as reference points respectively. For example, the circle center on the left side of the first reference plane 2 and the circle center on the right side of the first reference plane 2 correspond to the center of the outer surface of the first cover plate 6 of the second reference plane 5, and the circle center on the left side of the second reference plane 5 and the circle center on the right side of the second reference plane 5 correspond to the center of the outer surface of the first cover plate 6 of the first reference plane 2. Therefore, for each pair of reference planes, measure the distance between the two reference points of one of the reference planes in the pair of reference planes and the slide surface of the other reference plane (the center of the outer surface of the first cover plate 6). For the second reference plane 5, the first distance is obtained, and for the first reference plane 2, the second distance is obtained. Since the area of ​​the reference surface on the skateboard surface accounts for a small proportion (for example, the distance between the centers of the two semicircles of the first reference surface 6 is 40mm, the radius of the circle is 25, the radius of the ring is 15, the center of the left side of the first reference surface 6 is 125mm away from the left edge, the center of the left side of the first reference surface 6 is 90mm away from the lower edge, the upper and lower first reference surfaces 6 are 200mm apart, and the left and right first reference surfaces 6 are 275mm apart), the first distance and the second distance measured above are approximately equal to the straight-line distance along the Y axis. The purpose of this arrangement is to obtain the first distance or the second distance by taking the average of the distances obtained from the two reference points, and then use it to measure the degree of wear of the local position where the reference surface is located, so that the centering is more accurate.

[0087] Measure the dimensions between the two reference circle centers of the inlet reference surface and the outlet slide surface (corresponding to the center of the outer surface of the first cover plate 6), which are recorded as L2 and L2'; similarly, measure the dimensions between the two reference circle centers of the outlet reference surface and the inlet slide surface (corresponding to the center of the outer surface of the first cover plate 6), which are also two and recorded as L3 and L3' respectively;

[0088] Opening distance = L1, centering value on the inlet side = [(L2+L2') / 2]-L1;

[0089] Centering value on the outlet side = [(L3+L3') / 2]-L1;

[0090] The standard centering value of the sliding plate surface is L4.

[0091] Taking the average value of multiple reference points can improve the alignment accuracy.

[0092] Add or reduce spacers between the slide surface and the slide corresponding to each pair of the reference surfaces, and adjust the positions of the spacers so that the slide of the bearing seat 1 is arranged in a centered manner and meets the design dimensions, wherein the thickness of the added or reduced spacers is equal to the absolute value of the difference between the standard centering value of the slide surface in the design dimensions and the first difference, or equal to the absolute value of the difference between the standard centering value of the slide surface and the second difference.

[0093] According to the example of centering adjustment of the lower left corner of the outlet side mentioned above, when making adjustments, based on the design dimensions, first, by adding or removing gaskets (the size of the gaskets at the local position is generally small, and only the adjustment of the corresponding reference surface position is required) at the position near the first cover plate outside the corresponding reference surface as part of the new slide surface, the distance between the outer surfaces of the replaced standard slides is made to meet the design dimensions. After meeting the design dimensions, there may be misalignment at this time, and then the position of the slide and gasket is adjusted according to the inlet side centering value and the outlet side centering value (if necessary, it is allowed to add or remove gaskets within the allowable error range, such as replacing the small gaskets at the previous local position with large gaskets, and / or adjusting the position of the gaskets), so that the inlet side centering value and the outlet side centering value are equal to ensure the centering of the slide.

[0094] The above ensures that the size and position of the slide plate or gasket are adjusted according to the design size, the opening distance, the first distance and the second distance, so that the assembly size finally meets the production and design requirements, so as to obtain a bearing seat 1 with a sustainable use benchmark during its life cycle.

[0095] As an optional embodiment of the present invention, it also includes:

[0096] According to the difference between the first distance and the second distance, or according to the changes in the vibration data and stress data of the skateboard surfaces on both sides, it is judged whether the bearing seat 1 has a spatial accuracy fault, the vibration data includes the vibration amplitude, and the stress data includes the stress value.

[0097] Specifically, under normal circumstances, that is, when the slides on both sides of the bearing seat 1 are aligned, the first distance and the second distance should be equal or not much different. If the difference is large, it is considered that the slides on both sides of the bearing seat 1 are not aligned. Alternatively, in another case, when the slides on both sides of the bearing seat 1 are aligned, the frequency spectrum corresponding to the vibration data should tend to change steadily. When the frequency spectrum corresponding to the vibration data changes abnormally, such as a sharp increase in the frequency spectrum, it means that the bearing seat 1 is faulty. This may be caused by the misalignment of the slides on both sides of the bearing seat 1, or it may be an internal fault of the bearing, such as a ball fault. Further judgment is needed. If stress continues to be detected at the non-slide installation positions on both sides of the bearing seat 1, it means that the rollers exert forces on both sides of the bearing seat 1. This means that the slides on both sides of the bearing seat 1 are not aligned. At this time, a spatial accuracy fault can be reported. On the contrary, when no stress is detected at the non-slide installation positions on both sides of the bearing seat 1, other faults are directly reported, such as internal bearing faults.

[0098] As an optional embodiment of the present invention, judging whether the bearing seat 1 has a spatial accuracy fault according to the difference between the first distance and the second distance, or according to the change of the vibration data and stress data of the sliding plate surfaces on both sides, includes:

[0099] If the difference between the first distance and the second distance is greater than a preset distance, it is determined that the bearing seat 1 has a spatial accuracy fault;

[0100] Specifically, when performing offline judgment, it can be judged directly by whether the difference between the first distance and the second distance is greater than the preset distance. If so, it directly indicates that the slide surface of the bearing seat 1 is inconsistently worn (corresponding to the slide misalignment), and there must be a spatial accuracy failure.

[0101] Alternatively, if the vibration amplitude exceeds a preset amplitude and the stress value is greater than a preset value, it is determined that the bearing seat 1 has a spatial precision fault.

[0102] It should be noted that the preset distance, preset amplitude and preset value can all be set according to actual needs, and the preset value is a value close to 0.

[0103] Specifically, the change of vibration amplitude is detected first. When the vibration amplitude is large and exceeds the preset amplitude, it indicates that the vibration spectrum is abnormal. Under normal circumstances, the bearing seat 1 may have partial vibration. Then the change of stress is detected. Under normal circumstances, there should be no stress on the side of the rolling mill (the part where the slide plate surface is located). When stress occurs, it means that the roller axis corresponding to the operating side and the transmission side intersects, such as deviating to the left or right along the axis direction of the roller shaft. Therefore, obvious stress appears on the side of the rolling mill. When stress appears and is greater than the preset value, it is considered that the bearing seat 1 has a spatial accuracy failure, and the slides on both sides of the bearing seat 1 are not centered. Conversely, when the vibration amplitude exceeds the preset amplitude and the stress is detected to be no greater than the preset value, it is considered that the stress value is close to 0. At this time, it is considered that the bearing seat 1 has other faults. Other faults mainly include internal bearing faults (such as ball faults, cage faults, bearing inner ring or outer ring faults, etc.), which are obtained by judgment based on the classical fault diagnosis theory of bearings.

[0104] When this embodiment is applied in practice, it is possible to select offline judgment whether there is a spatial accuracy failure according to demand, or through the latter online judgment, while ensuring that the bearing seat 1 has the existing functions, increase the function of online monitoring of the spatial accuracy of the rolling mill of the bearing seat 1, so as to give early warning for faults, avoid obvious misalignment of the slide plate, avoid or reduce the risks of plate and strip deviation, poor plate shape, bearing burning, etc. In this way, a bearing seat 1 with the function of early warning and diagnosis of the spatial accuracy of the rolling mill can be obtained.

[0105] The present invention, under the premise of ensuring the existing functions of the bearing seat 1, adds the function of online monitoring of the spatial accuracy of the rolling mill and early warning of faults of the bearing seat 1, and provides a method for accurately controlling and adjusting the opening size and centering size of the rolling mill, thereby solving the technical problems faced by steel enterprises.

[0106] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present invention can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0107] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features invented herein.

[0108] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A bearing system, applied to a rolling mill, characterized in that: include: A bearing seat (1), wherein two sides of the bearing seat (1) are respectively provided with a slide plate surface, and the slide plate surface is used for mounting a slide plate; The bearing seat (1) is provided with a third groove on the slide surface, the bottom surface of the third groove is configured as a reference surface, the reference surface is covered by a first cover plate (6) and the outer surface of the first cover plate (6) is flush with the slide surface, the reference surfaces on the two slide surfaces are arranged in pairs, and each pair of the reference surfaces comprises a first reference surface (2) and a second reference surface (5) respectively arranged on the slide surfaces on both sides; The reference plane is a reference plane for obtaining the opening distance, the first distance and the second distance, and the opening distance, the first distance and the second distance are used for centering adjustment of the slide plate of the bearing seat (1); The opening distance is the distance between the first reference plane (2) and the second reference plane (5) in each pair of the reference planes, the first distance is the distance between the outer surface of the first cover plate (6) of the first reference plane (2) in each pair of the reference planes and the second reference plane (5), and the second distance is the distance between the outer surface of the first cover plate (6) of the first reference plane (2) and the second reference plane (5) in each pair of the reference planes.

2. The bearing system according to claim 1, characterized in that: A plurality of pairs of reference surfaces are provided, and each of the first reference surfaces (2) and the second reference surfaces (5) are evenly distributed along the sliding plate surfaces on both sides.

3. The bearing system according to claim 2, characterized in that: The reference surfaces are provided in four pairs, the first reference surface (2) and the second reference surface (5) of each pair of the reference surfaces are both waist-shaped, each pair of the reference surfaces has at least two pairs of reference points, and the projections of the first reference surface (2) and the second reference surface (5) in each pair of the reference surfaces on the central axis surface of the bearing seat (1) are arranged in a cross.

4. The bearing system according to any one of claims 1 to 3, characterized in that: Also includes: A vibration measuring component (3) is installed at abnormal vibration-exposed positions on both sides of the bearing seat (1); A stress measuring component (4) is installed at abnormal stress positions on both sides of the bearing seat (1); A processor is connected to the vibration measuring device (3) and the stress measuring device (4) and is used to obtain vibration data and stress data of the sliding plate surfaces on both sides to determine whether the bearing seat (1) has a spatial accuracy fault.

5. The bearing system according to claim 4, characterized in that: The abnormal vibration-bearing positions on both sides of the bearing seat (1) are provided with first grooves, and the vibration measuring device (3) is installed in the first grooves. The abnormal stress-bearing positions on both sides of the bearing seat (1) are provided with second grooves, and the stress measuring device is installed in the second grooves. The first grooves are covered by a second cover plate (7), and the second grooves are sealed by a sealing device.

6. A method for centering and adjusting a bearing seat, characterized in that: Based on the bearing system according to any one of claims 1 to 5, the centering adjustment method of the bearing seat comprises: Get the opening distance, the first distance and the second distance; The slide plate of the bearing seat (1) is centered and adjusted according to the opening distance, the first distance and the second distance.

7. The method for centering and adjusting a bearing seat according to claim 6, characterized in that: The obtaining of the opening distance, the first distance and the second distance comprises: The opening distance, the first distance and the second distance are measured respectively by a saddle ruler.

8. The method for centering and adjusting a bearing seat according to claim 6, characterized in that: The centering adjustment of the slide plate of the bearing seat (1) according to the opening distance, the first distance and the second distance comprises: Determine the difference between the inlet side centering distance and the outlet side centering distance of each pair of reference surfaces respectively, the inlet side centering distance of each pair of reference surfaces is the average value of the first distances corresponding to each pair of reference points contained therein and the first difference of the opening distance, and the outlet side centering distance of each pair of reference surfaces is the average value of the second distances corresponding to each pair of reference points contained therein and the second difference of the opening distance; Adding or reducing spacers between the slide surface and the slide corresponding to each pair of the reference surfaces, and adjusting the positions of the spacers, so that the slide of the bearing seat (1) is arranged in a centered manner and meets the design dimensions, wherein the thickness of the added or reduced spacers is equal to the absolute value of the difference between the standard centering value of the slide surface in the design dimensions and the first difference, or equal to the absolute value of the difference between the standard centering value of the slide surface and the second difference.

9. The method for centering and adjusting a bearing seat according to claim 8, characterized in that: Also includes: Based on the difference between the first distance and the second distance, or based on the changes in vibration data and stress data of the sliding plate surfaces on both sides, it is determined whether the bearing seat (1) has a spatial accuracy fault, the vibration data including the vibration amplitude, and the stress data including the stress value.

10. The method for centering and adjusting a bearing seat according to claim 9, characterized in that: The determining whether the bearing seat (1) has a spatial accuracy fault based on the difference between the first distance and the second distance, or based on changes in vibration data and stress data of the sliding plate surfaces on both sides, comprises: If the difference between the first distance and the second distance is greater than a preset distance, it is determined that the bearing seat (1) has a spatial accuracy fault; Alternatively, if the vibration amplitude exceeds a preset amplitude and the stress value is greater than a preset value, it is determined that the bearing seat (1) has a spatial precision fault.

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