A side detection device for laminated rubber bearings

Abstract

The utility model provides a kind of laminated rubber support side detection device, belong to rubber support health detection field.It includes support, apron, bolt and piezoelectric ceramic transducer, support both ends are connected with piezoelectric ceramic transducer, support inboard bottom is equipped with big bolt hole, big bolt hole inside is connected with big bolt, and detection space is provided by support.The utility model two transducers need be located at same height, same axis, support is used to fix transducer, support is fixed on laminated rubber support lower connecting plate by big bolt, and groove is used to place transducer, the inside diameter of groove, transducer outside diameter and apron advancing pipe outside diameter are kept consistent, ensure the relative position between transducer and support fixed.

Description

Technical Field

[0001] This utility model relates to the field of health detection of rubber bearings, and more specifically, to a side detection device for laminated rubber bearings. Background Technology

[0002] Laminated rubber bearings are widely used in bridge and building engineering to reduce the adverse effects of earthquakes on structures. However, under the influence of continuous loads, seismic action, and temperature changes, rubber inevitably suffers damage such as aging and peeling. Conventional inspections relying on visual observation to assess bearing damage face the problem of inaccurate damage assessments, while testing mechanical properties using compression-shear testing machines is labor-intensive, cumbersome, and unable to evaluate the bearing's operational status. Researchers have proposed a bearing damage identification method based on active sensing, which involves placing piezoelectric ceramic transducers on the side of the bearing using a temporary detection device to collect test data.

[0003] A search revealed that Chinese Patent Publication No. CN119619314A discloses "A portable non-destructive testing device for laminated rubber bearings and a method for identifying bearing damage. The testing device includes: a guide rail, constructed of I-beams with multiple bolt holes for mounting piezoelectric ceramic transducers; a piezoelectric ceramic transducer disposed within a circular ring on the guide rail for generating and receiving elastic waves; custom-made bolts and nuts for fixing the piezoelectric ceramic transducer to the guide rail and applying a certain pressure through preload to ensure the propagation of elastic waves; and a circular force sensor fitted with the nut of the custom-made bolts for monitoring the bolt preload." This invention provides... The detection device does not require changes to the support structure and is applicable to all laminated rubber supports, achieving non-destructive testing of the supports and is easy to operate. The present invention also discloses a laminated rubber support damage identification method that integrates 1DCNN, LSTM and XGBoost algorithms, which can achieve high-precision identification of the damage type and degree of laminated rubber supports. However, the following defects still exist: (1) The installation process of the detection device requires the participation of at least two workers, and the operation is not convenient; (2) During the installation process, the longitudinal height of the device needs to be repeatedly adjusted to ensure the consistency of the test; (3) The size of the detection device is large, and the space requirements of the support location are high.

[0004] Therefore, we have made improvements to this by proposing a side detection device for laminated rubber bearings. Utility Model Content

[0005] The purpose of this invention is to solve the problems of inconvenient operation and the need to repeatedly adjust the longitudinal height of the device during installation to ensure the consistency of the test in the current side detection device.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: A side inspection device for laminated rubber bearings is provided to improve the above-mentioned problems.

[0007] The present invention specifically includes a non-destructive testing component; The non-destructive testing component includes a bracket with piezoelectric ceramic transducers connected to both ends. A large bolt hole is provided at the bottom inner side of the bracket, and a large bolt is connected inside the large bolt hole. The bracket provides testing space.

[0008] As a preferred technical solution of this utility model, one end of the non-destructive testing component is connected to a sliding groove, and a piezoelectric ceramic transducer is connected inside the sliding groove.

[0009] As a preferred technical solution of this utility model, a first small bolt hole is provided on one side of the inside of the bracket, and a small bolt is connected inside the first small bolt hole.

[0010] As a preferred technical solution of this utility model, a push tube is connected to one side of the inside of the bracket, and a sliding groove is connected to one end of the push tube.

[0011] As a preferred technical solution of this utility model, the inner diameter of the chute, the outer diameter of the piezoelectric ceramic transducer, and the outer diameter of the cover plate push tube are all kept consistent, and the sum of the height of the piezoelectric ceramic transducer and the length of the cover plate push tube must be greater than the length of the chute.

[0012] As a preferred technical solution of this utility model, a cover plate is fixedly connected to the surface of the propulsion tube, and a second small bolt hole is opened on the surface of the cover plate.

[0013] As a preferred technical solution of this utility model, the first small bolt hole and the second small bolt hole are aligned internally, and small bolts are fitted inside the first small bolt hole and the second small bolt hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the detection device consists of a piezoelectric ceramic transducer, a bracket, a cover plate, and bolts. During the detection process, such as... Figure 1Two sets of the detection device are required, one on each side of the laminated rubber support. Both sets must be identical on the same support. Piezoelectric ceramic transducers are used to generate and receive elastic waves. The two transducers must be at the same height and on the same axis. A bracket is used to fix the transducers, secured to the lower connecting plate of the laminated rubber support with large bolts. A chute is used to place the transducers; the inner diameter of the chute, the outer diameter of the transducer, and the outer diameter of the cover plate push tube must all be consistent to ensure a fixed relative position between the transducer and the support. The sum of the transducer height and the length of the cover plate push tube must be greater than the length of the chute; that is, when the detection device is installed, the transducer cannot be completely located within the chute. The depth of the first small bolt hole on the bracket that fixes the cover plate is less than the thickness of the bracket. The cover plate is used to fix the transducer to the side of the support and provide constant pressure. The push tube on the cover plate contacts one end of the transducer. Tightening the small bolts with a torque screwdriver applies a uniformly distributed force to the transducer through the push tube while fixing the cover plate. During each test, a torque screwdriver is used to ensure consistent torque on the small bolts, guaranteeing consistent pressure on the transducer. Consequently, the installation of the testing device requires minimal staff involvement, making it easy to operate. During installation, there is no need to repeatedly adjust the longitudinal height of the device to ensure test consistency, and the space requirements for the support location are lower when the testing device is large. Attached Figure Description

[0015] Figure 1 A schematic diagram of the internal structure of the overall support of the side detection device for laminated rubber bearing provided by this utility model; Figure 2 A schematic diagram of the large bolt hole structure of a side detection device for a laminated rubber bearing provided by this utility model; Figure 3 A schematic diagram of the sliding groove structure of a side detection device for a laminated rubber bearing provided by this utility model; Figure 4 A schematic diagram of the cover plate structure of a side detection device for a laminated rubber support provided by this utility model.

[0016] The image shows: 201. Bracket; 202. Piezoelectric ceramic transducer; 203. Large bolt; 204. Large bolt hole; 205. First small bolt hole; 206. Slide groove; 207. Cover plate; 208. Second small bolt hole; 209. Small bolt; 210. Propulsion tube. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0018] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0019] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] like Figure 1-4 As shown, this embodiment proposes a side inspection device for a laminated rubber bearing, including a non-destructive testing component. The non-destructive testing component includes a bracket 201, with piezoelectric ceramic transducers 202 connected to both ends of the bracket 201. A large bolt hole 204 is opened at the bottom inner side of the bracket 201, and a large bolt 203 is connected inside the large bolt hole 204. The bracket 201 provides the inspection space.

[0022] like Figure 3 and Figure 4 As shown, one end of the non-destructive testing component is connected to a slide groove 206, and a piezoelectric ceramic transducer 202 is connected inside the slide groove 206. The piezoelectric ceramic transducer 202 is installed through the slide groove 206 to facilitate testing and adjustment.

[0023] like Figure 2 As shown, a first small bolt hole 205 is provided on one side of the bracket 201. A small bolt 209 is connected inside the first small bolt hole 205. The connection between the first small bolt hole 205 and the small bolt 209 is increased.

[0024] like Figure 2 As shown, a push tube 210 is connected to one side of the inside of the bracket 201, and a slide groove 206 is connected to one end of the push tube 210. The push tube 210 facilitates the operation of the piezoelectric ceramic transducer 202, which moves inside the slide groove 206.

[0025] like Figure 4 As shown, a cover plate 207 is fixedly connected to the surface of the propulsion tube 210. A second small bolt hole 208 is provided on the surface of the cover plate 207, which facilitates the installation and connection of the cover plate 207.

[0026] like Figure 4As shown, the first small bolt hole 205 and the second small bolt hole 208 are aligned internally, and small bolts 209 are fitted inside the first small bolt hole 205 and the second small bolt hole 208. The first small bolt hole 205 and the second small bolt hole 208 are connected and installed by small bolts 209.

[0027] Specifically, in use, the detection device of this utility model consists of a piezoelectric ceramic transducer 202, a bracket 201, a cover plate 207, and bolts. During the detection process, such as... Figure 1 Two sets of the detection device are required, arranged on both sides of the laminated rubber support. On the same support, both sets must be identical. The piezoelectric ceramic transducer 202 is used to generate and receive elastic waves. The two transducers must be located at the same height and on the same axis. The bracket 201 is used to fix the transducer, and is fixed to the lower connecting plate of the laminated rubber support by large bolts 203. The slide 206 is used to place the transducer. The inner diameter of the slide 206, the outer diameter of the transducer, and the outer diameter of the cover plate 207 push tube 210 are all consistent to ensure the relative position between the transducer and the support is fixed. The sum of the transducer height and the length of the cover plate 207 push tube 210 must be greater than the length of the slide 206; that is, when the detection device is installed, the transducer cannot be completely located within the slide 206. The hole depth of the small bolt 209 fixing the cover plate 207 on the bracket 201 is lower than the thickness of the bracket 201. The cover plate 207 is used to fix the transducer to the side of the support and provide constant pressure. The push tube 210 on the cover plate 207 contacts one end of the transducer. A torque screwdriver tightens the small bolt 209, simultaneously fixing the cover plate 207 and applying a uniformly distributed force to the transducer through the push tube 210. During each test, the torque of the small bolt 209 is kept consistent, ensuring uniform pressure on the transducer. This eliminates the need for multiple personnel during installation, making operation convenient. During installation, repeated adjustments to the longitudinal height of the device to ensure test consistency are unnecessary. The testing device is relatively small, requiring less space for the support.

[0028] All technical features in this embodiment can be freely combined according to actual needs.

[0029] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A side inspection device for laminated rubber bearings, characterized in that, Includes non-destructive testing components; The non-destructive testing component includes a bracket (201), with piezoelectric ceramic transducers (202) connected to both ends of the bracket (201). A large bolt hole (204) is opened on the bottom inner side of the bracket (201), and a large bolt (203) is connected inside the large bolt hole (204). The bracket (201) provides testing space.

2. The side inspection device for a laminated rubber bearing according to claim 1, characterized in that, One end of the non-destructive testing component is connected to a slide groove (206), and a piezoelectric ceramic transducer (202) is connected inside the slide groove (206).

3. The side inspection device for a laminated rubber bearing according to claim 1, characterized in that, The bracket (201) has a first small bolt hole (205) on one side inside, and a small bolt (209) is connected inside the first small bolt hole (205).

4. The side inspection device for a laminated rubber bearing according to claim 3, characterized in that, The support (201) has a push tube (210) connected to one side inside, and a slide groove (206) is connected to one end of the push tube (210).

5. The side inspection device for a laminated rubber bearing according to claim 4, characterized in that, The inner diameter of the chute (206), the outer diameter of the piezoelectric ceramic transducer (202), and the outer diameter of the cover plate push tube (210) are all kept consistent. The sum of the height of the piezoelectric ceramic transducer (202) and the length of the cover plate push tube (210) must be greater than the length of the chute (206).

6. The side inspection device for a laminated rubber bearing according to claim 4, characterized in that, The surface of the propulsion tube (210) is fixedly connected to a cover plate (207), and the surface of the cover plate (207) is provided with a second small bolt hole (208).

7. The side inspection device for a laminated rubber bearing according to claim 5, characterized in that, The first small bolt hole (205) and the second small bolt hole (208) are aligned internally, and small bolts (209) are connected to the first small bolt hole (205) and the second small bolt hole (208) internally.

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