Deformation measuring device and method for plate-type rubber bearing

Abstract

The present invention discloses a deformation measurement device for a plate-type rubber bearing. When the deformation measurement device is in operation, a first laser beam is projected onto the most outwardly convex portion of the bearing side, and a second laser beam is projected onto the intersection of the bearing side and the underlying pad. Because the first and second laser beams are parallel, an indicating link, the first and second laser beams, and the bearing side form a parallelogram. According to the principle of similar triangles, the angle a2 between the indicating link and the straight edge of the protractor is equal to the angle a between the bearing side and the horizontal. Therefore, the scale value on the protractor pointed by the indicating link is the angle value of the angle a between the bearing side and the horizontal, i.e., the shear deformation angle value of the bearing. Thus, the deformation measurement device for a plate-type rubber bearing of the present invention can accurately measure the shear deformation angle value of the bearing using a simple structure.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge bearing deformation detection technology, and in particular to a deformation measurement device and a measurement method for a plate-type rubber bearing. Background Art

[0002] Plate rubber bearings are widely used in small and medium-span bridges. Their primary function is to transmit superstructure forces (including vertical and horizontal forces caused by the structure's own weight and variable forces) to the bridge piers. They also adapt to structural deformations (displacement and rotation) caused by factors such as vehicle loads and temperature fluctuations. In recent years, with increasing traffic loads and increasingly harsh natural environments, the performance and durability of rubber bearings have garnered increasing attention. Shear deformation is a common problem with rubber bearings over long periods of use. In severe cases, it can lead to bearing failure and compromise structural safety. Therefore, it is necessary to measure bearing deformation to assess its service life.

[0003] The traditional measurement method involves directly measuring the shear deformation angle of the support with a protractor. However, the limited operating space in the support installation environment results in poor accuracy. Related technologies use automated measurement equipment based on multiple sensors, but this type of measurement equipment is complex and expensive. Summary of the Invention

[0004] The main purpose of the present invention is to propose a deformation measuring device for a plate-type rubber bearing, aiming to solve the technical problem of how to improve the accuracy of the bearing deformation measurement results while simplifying the structure of the deformation measuring device and reducing the cost.

[0005] To achieve the above-mentioned purpose, the deformation measuring device of the plate-type rubber bearing proposed in the present invention comprises:

[0006] a first fixing strip extending in a longitudinal direction;

[0007] a protractor, the protractor being slidably mounted on the first fixing bar in the longitudinal direction, the straight edge of the protractor extending in the longitudinal direction;

[0008] a first laser, the first laser being slidably mounted on the first fixing bar in a longitudinal direction and being capable of moving or stopping synchronously with the protractor, wherein a light emitting point of the first laser and a zero scale line of the protractor are located on the same horizontal line, and the first laser is configured to emit a laser beam in a direction away from the protractor;

[0009] a second fixing bar, the second fixing bar being arranged below the first laser and extending in a transverse direction;

[0010] a second laser, the second laser being slidably mounted on the second fixing bar in a transverse direction, the second laser being located on a side of the first laser away from the protractor in a horizontal direction, the laser beam emitted by the second laser being parallel to the laser beam emitted by the first laser;

[0011] An indicator link, wherein the indicator link extends along a line connecting the light-emitting points of the first laser and the second laser, one end of the indicator link is rotatably connected to the second laser, and the other end forms an indicator tip and points to the scale line of the protractor, and an extension line of the indicator tip passes through the light-emitting point of the first laser. The indicator link is slidably connected to the first laser so that the angle between the indicator link and the horizontal direction changes as the positions of the first laser and the second laser change.

[0012] Optionally, the second fixing bar is configured as a ruler, and a zero scale line of the second fixing bar and the light-emitting point of the first laser are located on the same vertical line.

[0013] Optionally, the deformation measuring device of the plate rubber bearing further includes a movable bar and a third laser, wherein the movable bar is arranged side by side on the side of the first fixed bar away from the protractor and can move toward or away from the first fixed bar, and the third laser can be mounted on the movable bar in a longitudinally slidable manner, and the laser beam emitted by the third laser is parallel to the laser beam emitted by the first laser.

[0014] Optionally, the deformation measuring device of the plate rubber bearing further includes a third fixed bar and a sliding connector, wherein the third fixed bar is arranged above the first laser and extends laterally, the sliding connector can be slidably installed on the first fixed bar laterally, and the top end of the movable bar is connected to the sliding connector so that the movable bar and the sliding connector can move or stop synchronously.

[0015] Optionally, the third fixing bar is configured as a ruler, the zero scale line of the third fixing bar and the light-emitting point of the first laser are located on the same vertical line, and the center of the sliding connection and the light-emitting point of the third laser are located on the same vertical line.

[0016] Optionally, the deformation measuring device of the plate rubber bearing further includes a first sliding column, which is slidably mounted on the first fixing bar in the longitudinal direction, the first laser is mounted on the first sliding column, and the protractor is connected to the first sliding column.

[0017] Optionally, the first fixing strip is provided in the form of a strip-shaped plate, the first fixing strip is provided with a first sliding groove extending in the longitudinal direction, and the first sliding post is slidably engaged with the first sliding groove.

[0018] Optionally, the indicator link is provided with a second sliding groove, the second sliding groove extends along the length direction of the indicator link, and the first sliding column is slidably engaged with the second sliding groove.

[0019] Optionally, the first fixing bar is located at the rear side of the second fixing bar, the indicating link is located at the rear side of the first fixing bar, and the protractor is located at the rear side of the indicating link.

[0020] Optionally, the deformation measuring device of the plate rubber bearing further includes a level, and the level is used to measure the horizontality of the second fixing bar.

[0021] The present invention further provides a method for measuring deformation of a plate-type rubber bearing. The method adopts the deformation measuring device for the plate-type rubber bearing described above. The method comprises the following steps:

[0022] Turning on the first laser and the second laser;

[0023] Move the first laser and the second laser so that the laser beam emitted by the first laser is irradiated to the most protruding position of the outer drum on the side of the support, and the laser beam emitted by the second laser is irradiated to the intersection of the side of the support and the pad stone;

[0024] Read the protractor scale value that the indicating tip of the indicating rod is pointing to.

[0025] Optionally, after the step of moving the first laser and the second laser, the method further comprises:

[0026] Read the scale value on the second fixed bar corresponding to the light-emitting point of the second laser.

[0027] Optionally, after the step of moving the first laser and the second laser, the method further comprises:

[0028] Turn on the third laser;

[0029] Move the third laser and the movable bar so that the laser beam emitted by the third laser is irradiated to the intersection of the top surface of the support and the main beam;

[0030] Read the scale value on the third fixing bar that corresponds to the center of the sliding connector.

[0031] In the technical solution of the deformation measurement device for a plate-type rubber bearing of the present invention, when the deformation measurement device is in operation, the laser beam of the first laser is projected onto the most outwardly convex position of the side of the bearing, and the laser beam of the second laser is projected onto the intersection of the side of the bearing and the underlying bolster. Because the laser beams of the first and second lasers are parallel, the indicating link, the laser beams of the first and second lasers, and the side of the bearing form a parallelogram. According to the principle of similar triangles, the angle a2 between the indicating link and the straight edge of the protractor is equal to the angle a between the side of the bearing and the horizontal line. Therefore, the scale value of the protractor pointed by the indicating link is the angle value of the angle a between the side of the bearing and the horizontal line, that is, the shear deformation angle value of the bearing. Therefore, the deformation measurement device of the plate-type rubber bearing of the present invention can accurately measure the shear deformation angle value of the bearing with a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0033] Figure 1 is a cross-sectional schematic diagram of the bridge structure;

[0034] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0035] Figure 3 It is a structural schematic diagram of an embodiment of a deformation measuring device for a plate-type rubber bearing according to the present invention;

[0036] Figure 4 A schematic diagram of the measurement process of an embodiment of a deformation measurement device for a plate-type rubber bearing according to the present invention;

[0037] Figure 5 A schematic diagram of the projection point of the laser beam of the deformation measuring device of the plate-type rubber bearing of the present invention;

[0038] Figure 6 A schematic diagram of reading measurement results of an embodiment of a deformation measuring device for a plate-type rubber bearing according to the present invention;

[0039] Figure 7 The figure is a flow chart of an embodiment of a method for measuring deformation of a plate-type rubber bearing according to the present invention.

[0040] Description of Figure Numbers:

[0041]

[0042] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0045] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0046] Plate rubber bearings are widely used in small and medium-span bridges. Their primary function is to transmit superstructure forces (including vertical and horizontal forces caused by the structure's own weight and variable forces) to the bridge piers. They also adapt to structural deformations (displacement and rotation) caused by factors such as vehicle loads and temperature fluctuations. In recent years, with increasing traffic loads and increasingly harsh natural environments, the performance and durability of rubber bearings have garnered increasing attention. Shear deformation is a common problem with rubber bearings over long periods of use. In severe cases, it can lead to bearing failure and compromise structural safety. Therefore, it is necessary to measure bearing deformation to assess its service life.

[0047] The traditional measurement method involves directly measuring the shear deformation angle of the support with a protractor. However, the limited operating space in the support installation environment results in poor accuracy. Related technologies use automated measurement equipment based on multiple sensors, but this type of measurement equipment is complex and expensive.

[0048] The present invention proposes a deformation measuring device for a plate-type rubber bearing, aiming to solve the technical problem of how to improve the accuracy of deformation measurement results of the bearing 200 while simplifying the structure of the deformation measuring device and reducing the cost.

[0049] In the embodiment of the present invention, Figure 1 As shown, the bridge structure includes a cap beam, a sill, a bearing 200, and a main beam, arranged in order from bottom to top. The bearing 200 is a rubber bearing. After long-term load-bearing, the bearing 200 may suffer from bulging and shear deformation, or even voiding. Therefore, it is necessary to test the shear deformation, voiding, and bulging of the bearing 200 to assess its continued serviceability.

[0050] like Figure 2 As shown, the degree of shear deformation is measured by taking the shear deformation angle of the support 200 as a parameter. The support 200 is in a rectangular shape at the beginning of service. After long-term load-bearing, shear deformation occurs in the transverse direction. The cross-sectional shape after deformation is similar to a parallelogram. At this time, the angle between the side surface of the support 200 and the horizontal direction also changes from a right angle to an acute angle a. By detecting the angle a between the side surface of the support 200 and the horizontal direction, the shear deformation angle of the support 200 can be intuitively obtained.

[0051] like Figure 2 As shown in the figure, the degree of voiding refers to the horizontal length of the area where the upper surface of the support 200 is out of contact with the main beam due to deformation. By measuring the horizontal length of the area where the upper surface of the support 200 is not in contact with the main beam (that is, Figure 2 The horizontal distance T between point A and point C, i.e., the gap length, can reflect the gap degree of the support 200.

[0052] like Figure 2 As shown, the bulging degree refers to the lateral distance between the most protruding position of the side of the support 200 and the bottom side of the side of the support 200 after the support 200 is deformed, that is, Figure 2 The horizontal distance W between point A and point B.

[0053] By measuring the above three deformation parameters, the overall continued service capability of the support 200 can be comprehensively evaluated.

[0054] like Figure 3As shown, the deformation measuring device of the plate rubber bearing proposed by the present invention includes: a first fixing bar 10, which extends in the longitudinal direction; a protractor 20, which can be slidably mounted on the first fixing bar 10 in the longitudinal direction, and the straight edge of the protractor 20 extends in the longitudinal direction; a first laser 30, which can be slidably mounted on the first fixing bar 10 in the longitudinal direction and move or stop synchronously with the protractor 20, the light-emitting point of the first laser 30 and the zero scale line of the protractor 20 are located on the same horizontal line, and the first laser 30 is used to emit a laser beam in a direction away from the protractor 20; a second fixing bar 40, which is arranged below the first laser 30 and extends in the transverse direction; a second laser 50, which can be slidably mounted on the first fixing bar 10 in the longitudinal direction, and the straight edge of the protractor 20 extends in the longitudinal direction; The second laser 50 is movably mounted on the second fixing bar 40, the second laser 50 is located on the side of the first laser 30 away from the protractor 20 in the horizontal direction, and the laser beam emitted by the second laser 50 is parallel to the laser beam emitted by the first laser 30; an indicating link 60, the indicating link 60 extends along the line connecting the light-emitting points of the first laser 30 and the second laser 50, one end of the indicating link 60 is rotatably connected to the second laser 50, and the other end forms an indicating tip and points to the scale line of the protractor 20, the extension line of the indicating tip passes through the light-emitting point of the first laser 30, and the indicating link 60 is slidably connected to the first laser 30 so that the angle between the indicating link 60 and the horizontal direction changes with the position change of the first laser 30 and the second laser 50.

[0055] In this embodiment, the zero mark of the protractor 20 passes through the luminous point of the first laser 30, and the extension line of the indicator tip of the indicator connecting rod 60 also passes through the luminous point of the first laser 30. Therefore, the scale of the protractor 20 pointed by the indicator tip is the angle a1 between the indicator connecting rod 60 and the horizontal direction. Because the protractor 20 and the first laser 30 move or stop synchronously, the zero mark of the protractor 20 will continue to pass through the luminous point of the first laser 30. The laser beam angles of the first laser 30 and the second laser 50 are pre-set, and the specific beam angles are not limited, as long as the laser beams of the first laser 30 and the second laser 50 are parallel to each other.

[0056] When the deformation measuring device is working, Figure 4As shown in Figure 5 , the first laser 30 emits a first laser beam to illuminate point A, and the second laser 50 emits a second laser beam to illuminate point B. Since the first laser beam and the second laser beam are parallel, the relative positions of the light-emitting points of the first laser 30 and the second laser 50 can be considered as the relative positions of points A and B. The indicator link 60 can be considered as the line connecting the light-emitting points of the first laser 30 and the second laser 50. Therefore, the angle a1 between the indicator link 60 and the horizontal direction can be considered as the angle a between the line connecting points A and B and the horizontal direction, that is, the angle between the side surface of the support 200 and the horizontal direction.

[0057] like Figure 6 As shown, from the relationship of similar triangles, it can be seen that the angle a1 between the indicating link 60 and the horizontal direction is equal to the angle a2 between the indicating link 60 and the straight side of the protractor 20. Therefore, the scale pointed by the indicating tip at this time is the angle value of the angle a1 between the indicating link 60 and the horizontal direction, that is, the angle value between the side surface of the support 200 and the horizontal direction, which can reflect the shear deformation angle value of the support 200.

[0058] The deformation measurement device of the present invention primarily comprises a protractor 20, a first fixing bar 10, a second fixing bar 40, a first laser 30, a second laser 50, and an indicator link 60. Requiring no bulky or tightly packed equipment, the device boasts a simple structure, easy assembly, and reduced cost. The first laser 30 and the second laser 50 provide greater positioning accuracy for target points on the support 200, thereby more accurately reflecting the relative position of the target points on the support 200. Furthermore, the visual scale on the protractor 20 allows the operator to immediately view the measurement results, thereby instantly obtaining the shear deformation angle of the support 200. This ensures more accurate and reliable measurement results.

[0059] When using the deformation measurement device for measurement, the device can be brought close to the support 200 and the laser beam emitted by the laser can be directed at the target point on the support 200. This is done without being affected by the confined space in which the support 200 is installed, thereby improving the convenience of the measurement process. Thus, the deformation measurement device for the plate-type rubber bearing of the present invention can accurately measure the shear deformation angle of the support 200 using a simple structure.

[0060] Specifically, such as Figure 3 and Figure 6As shown, the second fixing bar 40 is configured as a ruler, and the zero scale line of the second fixing bar 40 and the light-emitting point of the first laser 30 are located on the same vertical line. As can be seen from the previous embodiment, after the first laser beam irradiates point A of the support 200 and the second laser beam irradiates point B of the support 200, since the first laser beam and the second laser beam are parallel, the relative position of the light-emitting point of the first laser 30 and the light-emitting point of the second laser 50 can be regarded as the relative position of point A and point B on the support 200. Therefore, by measuring the lateral distance between the light-emitting points of the first and second light emitters, the lateral distance between points A and B, that is, the outer drum length of the support 200, can be determined.

[0061] The zero scale line of the second fixing bar 40 is located below the light-emitting point of the first laser 30. Since the first laser 30 cannot move laterally, the zero scale line of the second fixing bar 40 serves as a horizontal reference line for the light-emitting point of the first laser. In other words, the distance between the light-emitting point of the second laser 50 and the zero scale line of the second fixing bar 40 is the horizontal distance W1 between the light-emitting point of the second laser 50 and the light-emitting point of the first laser 30. Therefore, by reading the scale value corresponding to the light-emitting point of the second laser 50 on the second fixing bar 40, the horizontal distance W1 between the light-emitting point of the second laser 50 and the light-emitting point of the first laser 30 can be directly obtained, and thus the outer drum length W of the support 200 can be directly obtained. In this way, the effectiveness of the deformation measurement device can be further improved.

[0062] For example, Figures 3 to 6 As shown, the deformation measuring device of the plate rubber bearing also includes a movable bar 70 and a third laser 80. The movable bar 70 is arranged side by side on the side of the first fixed bar 10 away from the protractor 20, and can move toward or away from the first fixed bar 10. The third laser 80 can be installed on the movable bar 70 in a longitudinally slidable manner. The laser beam emitted by the third laser 80 is parallel to the laser beam emitted by the first laser 30.

[0063] The movable bar 70 may be connected to the first fixed bar 10 or not, and there is no restriction here. The only requirement is that the movable bar 70 can move laterally relative to the first fixed bar 10. The third laser 80 and the first laser 30 cooperate to measure the hollow length of the support 200. Specifically, when measuring, the first laser beam is first aligned with point A of the support 200, and then the positions of the movable bar 70 and the third laser 80 are adjusted so that the third laser beam emitted by the third laser 80 is aligned with point C of the support 200. When the support 200 is hollow, it usually starts to break away from the main beam from the outermost bulge position. Therefore, the horizontal distance T between point A and point C is the hollow length of the support 200.

[0064] Because the first and third laser beams are parallel, when the first laser beam is aligned with point A of support 200 and the third laser beam is aligned with point C of support 200, the relative positions of the emission points of the first laser 30 and the third laser 80 can be considered as the relative positions of points A and C. Therefore, by simply measuring the lateral spacing T1 between the emission points of the first laser 30 and the third laser 80, the lateral spacing T between points A and C can be determined, that is, the air gap length of support 200 can be obtained. This further improves the effectiveness of the deformation measurement device.

[0065] Specifically, such as Figure 3 and Figure 6 As shown, the deformation measurement device of the plate rubber bearing also includes a third fixed bar 90 and a sliding connector 91. The third fixed bar 90 is arranged above the first laser 30 and extends in the transverse direction. The sliding connector 91 can be installed on the first fixed bar 10 in a transverse sliding manner. The top end of the movable bar 70 is connected to the sliding connector 91 so that the movable bar 70 and the sliding connector 91 can move or stop synchronously. The third fixed bar 90 can support the movement of the movable bar 70 to improve the stability of the movement of the movable bar 70. The sliding connector 91 and the third fixed bar 90 slide together to guide the movement of the movable bar 70 and prevent the movable bar 70 from easily deviating from the movement trajectory.

[0066] In practical applications, such as Figure 3 and Figure 6 As shown, the third fixing bar 90 is set as a ruler, the zero scale line of the third fixing bar 90 and the light-emitting point of the first laser 30 are located on the same vertical line, and the center of the sliding connection 91 and the light-emitting point of the third laser 80 are located on the same vertical line.

[0067] The zero scale line of the third fixing bar 90 is located above the light-emitting point of the first laser 30. Since the first laser 30 cannot move laterally, the zero scale line of the third fixing bar 90 can be used as the reference line of the light-emitting point of the first laser in the horizontal direction, and the position of the center of the sliding connection 91 on the third fixing bar 90 can be regarded as the projection of the light-emitting point of the third laser 80 on the third fixing bar 90.

[0068] In other words, the distance between the center of the sliding connector 91 and the zero scale line of the third fixed bar 90 is the lateral distance T1 between the light-emitting point of the third laser 80 and the light-emitting point of the first laser 30. Therefore, by reading the scale value corresponding to the center of the sliding connector 91 on the third fixed bar 90, the lateral distance T1 between the light-emitting point of the third laser 80 and the light-emitting point of the first laser 30 can be directly obtained, and thus the air gap length T of the support 200 can also be directly obtained. This can further improve the performance of the deformation measurement device.

[0069] The protractor 20 and the first laser 30 may be connected to the first fixing bar 10 separately, or may be connected to the first fixing bar 10 through the same connecting member.

[0070] Exemplarily, the deformation measurement device for the plate-type rubber bearing further includes a first sliding post, which is longitudinally slidably mounted on the first fixing bar 10. The first laser 30 is mounted on the first sliding post, and the protractor 20 is connected to the first sliding post. The first sliding post can be used to mount both the first laser 30 and the protractor 20, thereby enabling the protractor 20 and the first laser 30 to move synchronously on the first fixing bar 10. This simplifies the installation of the protractor 20 and the first laser 30 on the first fixing bar 10 and ensures the synchronization of their movement.

[0071] Specifically, such as Figure 3 As shown, the first fixing bar 10 is provided in the form of a strip plate and defines a first sliding groove 11 extending longitudinally. The first sliding post slidably engages with the first sliding groove 11. The engagement of the first sliding post with the first sliding groove 11 increases the engagement area between the first sliding post and the first fixing bar 10, thereby improving the installation stability and sliding stability of the first sliding post on the first fixing bar 10.

[0072] For example, Figure 3 As shown, the indicator link 60 defines a second slot 61 extending along the length of the indicator link 60, and the first sliding post slidably engages with the second slot 61. The first sliding post can slide within the second slot 61, thereby limiting the indicator link 60 and improving the stability of the engagement between the first sliding post and the indicator link 60.

[0073] Specifically, the first fixing bar 10 is located behind the second fixing bar 40, the indicating link 60 is located behind the first fixing bar 10, and the protractor 20 is located behind the indicating link 60. The second fixing bar 40 is provided with a scale for the operator to read. Therefore, placing the second fixing bar 40 in front of the first fixing bar 10 prevents the second fixing bar 40 from being blocked, allowing the operator to promptly and effectively read the scale values ​​on the second fixing bar 40. The indicating link 60 points to the scale values ​​on the protractor 20 for the operator to read. Therefore, placing the indicating link 60 in front of the protractor 20 prevents the protractor 20 from blocking the indicating tip of the indicating link 60, thereby ensuring that the indicating tip of the indicating link 60 and the scale of the protractor 20 are both visible to the operator, allowing the operator to promptly and effectively read the angle value indicated by the indicating link 60.

[0074] In practical applications, such as Figure 3 As shown, the deformation measurement device for the plate rubber bearing also includes a spirit level 93, which is used to measure the horizontality of the second fixing bar 40. The angle a1 between the indicator link 60 and the second fixing bar 40 reflects the angle a between the side of the bearing 200 and the horizontal direction. Therefore, during the deformation measurement process, the second fixing bar 40 must remain horizontal. The spirit level 93 measures the horizontality of the second fixing bar 40, allowing the operator to adjust the position of the deformation measurement device based on the current horizontality to keep the second fixing bar 40 as horizontal as possible, thereby improving the measurement accuracy of the deformation measurement device.

[0075] For example, Figure 7 As shown, the present invention also proposes a plate rubber bearing deformation measurement method, which uses the plate rubber bearing deformation measurement device as described above, and the plate rubber bearing deformation measurement method includes the following steps:

[0076] S100, turning on the first laser 30 and the second laser 50;

[0077] S200, moving the first laser 30 and the second laser 50 so that the laser beam emitted by the first laser 30 is irradiated to the most protruding position of the outer drum on the side of the support 200, and the laser beam emitted by the second laser 50 is irradiated to the intersection of the side of the support 200 and the pad stone;

[0078] S300 , reading the protractor scale value pointed to by the indicating tip of the indicating link 60 .

[0079] In combination with the embodiment of the level 93 described above, before turning on the first laser 30 and the second laser 50 , the level of the second fixing bar 40 may be adjusted by using the level 93 .

[0080] Specifically, such as Figure 7 As shown, after the step of moving the first laser 30 and the second laser 50, the method further includes:

[0081] S400 , reading the scale value on the second fixing bar 40 corresponding to the light-emitting point of the second laser 50 .

[0082] In practical applications, such as Figure 7 As shown, after the step of moving the first laser 30 and the second laser 50, the method further includes:

[0083] S500, turning on the third laser 80;

[0084] S600, moving the third laser 80 and the movable bar 70 so that the laser beam emitted by the third laser 80 is irradiated to the intersection of the top surface of the support 200 and the main beam;

[0085] S700 , reading the scale value on the third fixing bar 90 corresponding to the center of the sliding connection member 91 .

[0086] The above descriptions are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present description and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A deformation measuring device for a plate-type rubber bearing, characterized in that: include: a first fixing strip extending in a longitudinal direction; a protractor, the protractor being slidably mounted on the first fixing bar in the longitudinal direction, the straight edge of the protractor extending in the longitudinal direction; a first laser, the first laser being slidably mounted on the first fixing bar in a longitudinal direction and being capable of moving or stopping synchronously with the protractor, wherein a light emitting point of the first laser and a zero scale line of the protractor are located on the same horizontal line, and the first laser is configured to emit a laser beam in a direction away from the protractor; a second fixing bar, the second fixing bar being arranged below the first laser and extending in a transverse direction; a second laser, the second laser being slidably mounted on the second fixing bar in a transverse direction, the second laser being located on a side of the first laser away from the protractor in a horizontal direction, the laser beam emitted by the second laser being parallel to the laser beam emitted by the first laser; An indicator link, wherein the indicator link extends along a line connecting the light-emitting points of the first laser and the second laser, one end of the indicator link is rotatably connected to the second laser, and the other end forms an indicator tip and points to the scale line of the protractor, and an extension line of the indicator tip passes through the light-emitting point of the first laser. The indicator link is slidably connected to the first laser so that the angle between the indicator link and the horizontal direction changes as the positions of the first laser and the second laser change.

2. The deformation measuring device of the plate-type rubber bearing according to claim 1, characterized in that: The second fixing bar is configured as a ruler, and a zero scale line of the second fixing bar and a light emitting point of the first laser are located on the same vertical line.

3. The deformation measuring device of the plate type rubber bearing according to claim 1, characterized in that: The deformation measuring device of the plate rubber bearing also includes a movable bar and a third laser. The movable bar is arranged side by side on the side of the first fixed bar away from the protractor and can move toward or away from the first fixed bar. The third laser can be installed on the movable bar in a longitudinally slidable manner. The laser beam emitted by the third laser is parallel to the laser beam emitted by the first laser.

4. The deformation measuring device of the plate type rubber bearing according to claim 3, characterized in that: The deformation measuring device of the plate rubber bearing also includes a third fixed bar and a sliding connector. The third fixed bar is arranged above the first laser and extends laterally. The sliding connector can be installed on the first fixed bar in a laterally slidable manner. The top end of the movable bar is connected to the sliding connector so that the movable bar and the sliding connector can move or stop synchronously.

5. The deformation measuring device of the plate type rubber bearing according to claim 4, characterized in that: The third fixing bar is configured as a ruler, the zero scale line of the third fixing bar and the light emitting point of the first laser are located on the same vertical line, and the center of the sliding connection member and the light emitting point of the third laser are located on the same vertical line.

6. The deformation measuring device for a plate-type rubber bearing according to any one of claims 1 to 5, characterized in that: The deformation measuring device of the plate rubber bearing further includes a first sliding column, which is slidably mounted on the first fixing bar in the longitudinal direction, the first laser is mounted on the first sliding column, and the protractor is connected to the first sliding column.

7. The deformation measuring device for a plate-type rubber bearing according to any one of claims 1 to 5, characterized in that: The deformation measuring device of the plate-type rubber bearing further includes a level, which is used to measure the horizontality of the second fixing bar.

8. A method for measuring deformation of a plate-type rubber bearing, characterized in that: The plate-type rubber bearing deformation measurement method adopts a plate-type rubber bearing deformation measurement device, which includes a first fixing bar, a protractor, a first laser, a second fixing bar, a second laser and an indicating connecting rod; The first fixing strip extends in the longitudinal direction; a protractor, the protractor being slidably mounted on the first fixing strip in the longitudinal direction, the straight edge of the protractor extending in the longitudinal direction; The first laser is slidably mounted on the first fixing bar in the longitudinal direction and moves or stops synchronously with the protractor. The light emitting point of the first laser and the zero scale line of the protractor are located on the same horizontal line. The first laser is used to emit a laser beam in a direction away from the protractor. The second fixing bar is provided below the first laser and extends in the transverse direction; The second laser is slidably mounted on the second fixing bar in a transverse direction, the second laser is located on a side of the first laser away from the protractor in a horizontal direction, and the laser beam emitted by the second laser is parallel to the laser beam emitted by the first laser; The indicator link extends along a line connecting the light-emitting points of the first laser and the second laser. One end of the indicator link is rotatably connected to the second laser, and the other end forms an indicator tip that points to the scale line of the protractor. The extension line of the indicator tip passes through the light-emitting point of the first laser. The indicator link is slidably connected to the first laser so that the angle between the indicator link and the horizontal direction changes with the position of the first laser and the second laser. The deformation measurement method of the plate rubber bearing comprises the following steps: Turning on the first laser and the second laser; Move the first laser and the second laser so that the laser beam emitted by the first laser is irradiated to the most protruding position of the outer drum on the side of the support, and the laser beam emitted by the second laser is irradiated to the intersection of the side of the support and the pad stone; Read the protractor scale value that the indicating tip of the indicating rod is pointing to.

9. The deformation measurement method of the plate rubber bearing according to claim 8, characterized in that: The second fixing bar is configured as a ruler, and the zero scale line of the second fixing bar and the light emitting point of the first laser are located on the same vertical line; After the step of moving the first laser and the second laser, the method further comprises: Read the scale value on the second fixed bar corresponding to the light-emitting point of the second laser.

10. The deformation measurement method of a plate-type rubber bearing according to claim 8, characterized in that: The deformation measuring device of the plate rubber bearing further includes a movable bar, a third laser, a third fixed bar, and a sliding connector. The movable bar is arranged side by side on a side of the first fixed bar away from the protractor and can move toward or away from the first fixed bar. The third laser can be slidably mounted on the movable bar in the longitudinal direction. The laser beam emitted by the third laser is parallel to the laser beam emitted by the first laser. The third fixed bar is arranged above the first laser and extends in the transverse direction. The sliding connector can be slidably mounted on the first fixed bar in the transverse direction. The top end of the movable bar is connected to the sliding connector so that the movable bar and the sliding connector can move or stop synchronously. The third fixing bar is configured as a ruler, the zero scale line of the third fixing bar and the light-emitting point of the first laser are located on the same vertical line, and the center of the sliding connection member and the light-emitting point of the third laser are located on the same vertical line; After the step of moving the first laser and the second laser, the method further comprises: Turn on the third laser; Move the third laser and the movable bar so that the laser beam emitted by the third laser is irradiated to the intersection of the top surface of the support and the main beam; Read the scale value on the third fixing bar that corresponds to the center of the sliding connector.

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