A multi-directional static load test device for light rail bearings

Abstract

The present invention discloses a multi-directional static load test device for light rail supports, comprising a loading system, an auxiliary tooling, a support member, and a connecting tooling, wherein the loading system is connected above the auxiliary tooling, the connecting tooling is connected below the auxiliary tooling, the auxiliary tooling is used to install a movable support and a fixed support, the support member is used to support the movable support and the fixed support, and is capable of controlling the inclination angle of the movable support and the fixed support. The beneficial effect of the present invention is that by setting the support member to adjust and control the inclination angle of the movable support and the fixed support, the loading system located above can perform pressure tests on the movable support and the fixed support at different angles, making them basically the same as actual application conditions, improving the accuracy of the test results, and enhancing the reference value.

Description

Technical Field

[0001] The invention belongs to the technology of light rail component stress test device, in particular to a multi-directional stress static load test device for a light rail support. Background Art

[0002] With the increasing construction of highways, railway bridges, and light rail in my country, the testing and monitoring of various bridge loads, including static, dynamic, and impact vertical loads, has become increasingly important for bridge operation. The collection of vertical reaction force monitoring data for light rail supports, or light rail, provides a technical basis for light rail health monitoring.

[0003] The traditional static load test of light rail bearings directly uses a hydraulic servo loading system to perform loading tests on both sides of the fixed bearing and the movable bearing at the same time. This has the following disadvantages: the light rail bearings are only subjected to vertical forces, which is quite different from the actual application conditions. The test results are not accurate enough and have little reference value. At the same time, test data under extreme conditions cannot be obtained. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-directional static load test device for a light rail support, so that the light rail support is subjected to multi-angle forces, which is the same as the actual application conditions, thereby improving the reference value of the test results.

[0005] To achieve this purpose, the present invention adopts the following technical solutions.

[0006] A multi-directional static load test device for a light rail support includes a loading system, an auxiliary tooling, a supporting member, and a connecting tooling. The loading system is connected above the auxiliary tooling, and the connecting tooling is connected below the auxiliary tooling. The auxiliary tooling is used to install a movable support and a fixed support. The supporting member is used to support the movable support and the fixed support and can control the inclination angle of the movable support and the fixed support.

[0007] The present invention using the above-mentioned technical solution connects the movable support and the fixed support by setting a connecting tooling, and then installs the loading system and the connecting tooling connected with the movable support and the fixed support together by setting an auxiliary tooling, so that the loading system can test the movable support and the fixed support through the loading force, and sets a supporting member at the bottom of the movable support and the fixed support, and adjusts and controls the inclination angle of the movable support and the fixed support through the supporting member, so that the loading system located above can perform pressure loading tests on the movable support and the fixed support at different angles, making it the same as the actual application conditions, improving the accuracy of the test results, and enhancing the reference value.

[0008] Preferably, the loading system and the auxiliary tooling are connected to one side of the connecting tooling and are located directly above the same side of the movable support and the fixed support to form single-sided loading.

[0009] By connecting the loading system and the auxiliary tooling just above one side of the movable support and the fixed support, force is applied to one side of the movable support and the fixed support, so that the movable support and the fixed support are tested under the extreme condition of unilateral force, and the test data of the movable support and the fixed support under extreme conditions are obtained, thereby improving the reference value of the test results; after the test on one side of the fixed support and the movable support is completed, the fixed support and the movable support are removed, and the other side is installed just below the loading system for loading, so as to obtain the experimental data of the other side.

[0010] Preferably, the supporting member is a pad structure, and the pad height under each fixed support or movable support may be different.

[0011] By setting pads to lift the fixed support and the movable support, and using a combination of pads of different heights, it is possible to detect different angles of inclination of the fixed support and the movable support, thereby realizing multi-angle detection.

[0012] Preferably, the top of the pad that abuts against the fixed support and the movable support is configured in a semicircular arc shape.

[0013] Setting the top of the pad that contacts the fixed support and the movable support to a semicircular arc shape can allow the fixed support and the movable support to tilt within a range of 180 degrees, making the detectable angle range as large as possible, the same as the actual working conditions, and improving the reference value of the test results.

[0014] Preferably, the height of the pad is adjustable.

[0015] The inclination angles of the fixed support and the movable support can be adjusted by adjusting the height of the pad.

[0016] Preferably, the auxiliary tooling is connected above the movable support and the fixed support by bolts.

[0017] The fixed support and the movable support can be easily removed from the test device by bolt connection.

[0018] Preferably, the loading system can adopt hydraulic pressure or pneumatic pressure loading.

[0019] Preferably, it further comprises a frame, the bottom of the frame is connected to a base via bolts, and the pad is installed on the base.

[0020] The rack is set up to provide support for the movable supports and fixed supports to ensure the normal operation of the test.

[0021] The beneficial effect of the present invention is that pads are arranged at the bottom of the movable support and the fixed support, and the inclination angles of the movable support and the fixed support are adjusted and controlled by the pads, so that the loading system located above can perform pressure loading tests on the movable support and the fixed support at different angles; and the loading system is arranged on one side of the fixed support and the movable support, so that the movable support and the fixed support are tested under the extreme condition of unilateral force, and the test data of the movable support and the fixed support under extreme conditions are obtained, so that the obtained data are the same as the actual application conditions, thereby improving the accuracy of the test results and enhancing the reference value of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the present invention;

[0023] Figure 2 It is a left side view of the present invention;

[0024] Figure 3 It is a front view of the fixed support of the present invention;

[0025] Figure 4 The present invention Figure 3 Partial cross-section of the middle MM;

[0026] Figure 5 It is a front view of the movable support of the present invention;

[0027] Figure 6 The present invention Figure 5 Partial cross-section of NN. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings, but the present invention is not limited to the scope of the embodiments described.

[0029] The illustrations in the specification of the present invention include: loading system 1, auxiliary tooling 2, connecting tooling 3, movable support 4, movable support upper swing 41, movable support lower swing 42, roller shaft 43, pressure plate 44, fixed support 5, fixed support upper swing 51, fixed support lower swing 52, hinge shaft 54, upper swing root 55, lower swing root 56, base 6, frame 7, and pad 8.

[0030] See also Figure 1 and Figure 2 A multi-directional static load test device for a light rail support includes a loading system 1, an auxiliary tooling 2), a support member 8 and a connecting tooling 3. The loading system 1 is connected above the auxiliary tooling 2, and the connecting tooling 3 is connected below the auxiliary tooling 2. The auxiliary tooling 2 is used to install a movable support 4 and a fixed support 5. The support member 8 is used to support the movable support 4 and the fixed support 5, and can be used to control the inclination angle of the movable support 4 and the fixed support 5.

[0031] Among them, see Figure 2 , the loading system 1 and the auxiliary tooling 2 are connected to one side of the connecting tooling 3, and are located directly above the same side of the movable support 4 and the fixed support 5, forming a single-sided loading. The auxiliary tooling 2 is connected above the movable support 4 and the fixed support 4 by bolts. The top of the pad 8 that abuts against the fixed support 5 and the movable support 4 is set to a semicircular arc shape. The supporting member 8 is a pad structure, and the height of the pad under each fixed support 5 or movable support 4 may be different. The height of the pad 8 is adjusted by adding or removing the flat pad under the pad 8. The loading system 1 can be loaded by hydraulic or pneumatic pressure. The pad 8 is mounted on the base 6.

[0032] See also Figures 3 to 6 The fixed support 5 and movable support 4 are both symmetrically arranged on their left and right sides, so only one side is tested during a single static load test. Testing points for both the fixed support 5 and movable support 4 include strain and cracks at the upper and lower swing roots 55 and 56, as well as the vertical displacement of the upper swing center.

[0033] See also Figure 1 The multi-directional static load test device for the light rail support further includes a frame 7, the bottom of which is connected to a base 6 by bolts.

[0034] When using the multi-directional static load test device for light rail supports, the fixed support 5 and the movable support 4 are connected and fixed to the connecting fixture 3, and a pad 8 is installed below the fixed support 5 and the movable support 4. The height of the pad 8 can be adjusted or replaced with pads 8 of different heights to make the fixed support 5 and the movable support 4 form different inclination angles. One side of the fixed support 5 and the movable support 4 is tested. The loading system 1 starts from 0 and increases step by step every 100KN to the maximum load. At the same time, multiple angles of the fixed support 5 and the movable support 4 are tested. During the test, the strain of the upper swing root 55, the lower swing root 56, the pressure plate 44, the roller shaft 43 and the hinge shaft 54, the vertical displacement of the upper swing center, and the crack data of the upper swing root 55 and the lower swing root 56 are recorded. After the static load test, flaw detection is carried out as required, and this is repeated three times. After testing one side of the fixed support 5 and the movable support 4 is completed, the fixed support and the movable support are removed, and the other side is installed directly below the loading system for loading to obtain experimental data on the other side.

[0035] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-directional static load test device for light rail supports, characterized in that: The invention comprises a loading system (1), an auxiliary tooling (2), a supporting member (8) and a connecting tooling (3), wherein the loading system (1) is connected above the auxiliary tooling (2), the connecting tooling (3) is connected below the auxiliary tooling (2), the auxiliary tooling (2) is used to install a movable support (4) and a fixed support (5), and the supporting member (8) is used to support the movable support (4) and the fixed support (5), and is capable of controlling the tilt angle of the movable support (4) and the fixed support (5), so that the loading system (1) located above can perform pressure loading tests at different angles on the movable support (4) and the fixed support (5); The loading system (1) and the auxiliary tooling (2) are connected to one side of the connecting tooling (3) and are located directly above the same side of the movable support (4) and the fixed support (5) to form single-sided loading; the one side is the left side or the right side; The support member (8) is in the form of a pad structure, and the pad heights under each fixed support (5) or movable support (4) may be different.

2. The multi-directional static load test device for light rail bearings according to claim 1 is characterized in that: The top of the support member (8) abutting against the fixed support (5) and the movable support (4) is configured in a semicircular arc shape.

3. The multi-directional static load test device for light rail bearings according to claim 1 is characterized in that: The height of the support member (8) is adjustable.

4. The multi-directional static load test device for light rail bearings according to claim 1 is characterized in that: The auxiliary tooling (2) is connected above the movable support (4) and the fixed support (5) by means of bolts.

5. The multi-directional static load test device for light rail bearings according to claim 1 is characterized in that: The loading system (1) can adopt hydraulic pressure or pneumatic pressure loading.

6. The multi-directional static load test device for light rail bearings according to claim 1, characterized in that: It also includes a frame (7), the bottom of which is connected to a base (6) via bolts; and the supporting member (8) is mounted on the base (6).

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